aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/Makefile1
-rw-r--r--drivers/acpi/processor_idle.c21
-rw-r--r--drivers/base/power/resume.c6
-rw-r--r--drivers/base/power/suspend.c13
-rw-r--r--drivers/bluetooth/dtl1_cs.c3
-rw-r--r--drivers/char/Kconfig32
-rw-r--r--drivers/char/Makefile2
-rw-r--r--drivers/char/agp/Kconfig4
-rw-r--r--drivers/char/agp/amd64-agp.c81
-rw-r--r--drivers/char/hangcheck-timer.c4
-rw-r--r--drivers/char/hw_random.c698
-rw-r--r--drivers/char/hw_random/Kconfig90
-rw-r--r--drivers/char/hw_random/Makefile11
-rw-r--r--drivers/char/hw_random/amd-rng.c152
-rw-r--r--drivers/char/hw_random/core.c354
-rw-r--r--drivers/char/hw_random/geode-rng.c128
-rw-r--r--drivers/char/hw_random/intel-rng.c189
-rw-r--r--drivers/char/hw_random/ixp4xx-rng.c73
-rw-r--r--drivers/char/hw_random/omap-rng.c208
-rw-r--r--drivers/char/hw_random/via-rng.c183
-rw-r--r--drivers/char/ipmi/ipmi_msghandler.c7
-rw-r--r--drivers/char/keyboard.c10
-rw-r--r--drivers/char/vt.c580
-rw-r--r--drivers/clocksource/Makefile3
-rw-r--r--drivers/clocksource/acpi_pm.c177
-rw-r--r--drivers/clocksource/cyclone.c119
-rw-r--r--drivers/clocksource/scx200_hrt.c101
-rw-r--r--drivers/dma/ioatdma.c5
-rw-r--r--drivers/ide/ide-io.c2
-rw-r--r--drivers/ide/ide-lib.c4
-rw-r--r--drivers/ide/ide-timing.h8
-rw-r--r--drivers/ide/pci/pdc202xx_old.c40
-rw-r--r--drivers/ide/pci/piix.c12
-rw-r--r--drivers/ieee1394/eth1394.c3
-rw-r--r--drivers/ieee1394/raw1394.c3
-rw-r--r--drivers/infiniband/core/mad.c9
-rw-r--r--drivers/infiniband/core/mad_rmpp.c3
-rw-r--r--drivers/infiniband/ulp/ipoib/ipoib_multicast.c6
-rw-r--r--drivers/isdn/capi/capi.c54
-rw-r--r--drivers/isdn/gigaset/bas-gigaset.c298
-rw-r--r--drivers/isdn/gigaset/ev-layer.c13
-rw-r--r--drivers/isdn/hisax/q931.c4
-rw-r--r--drivers/md/Kconfig46
-rw-r--r--drivers/md/Makefile5
-rw-r--r--drivers/md/bitmap.c483
-rw-r--r--drivers/md/dm-crypt.c56
-rw-r--r--drivers/md/dm-emc.c40
-rw-r--r--drivers/md/dm-exception-store.c67
-rw-r--r--drivers/md/dm-ioctl.c109
-rw-r--r--drivers/md/dm-linear.c8
-rw-r--r--drivers/md/dm-log.c157
-rw-r--r--drivers/md/dm-mpath.c43
-rw-r--r--drivers/md/dm-raid1.c97
-rw-r--r--drivers/md/dm-round-robin.c6
-rw-r--r--drivers/md/dm-snap.c16
-rw-r--r--drivers/md/dm-stripe.c25
-rw-r--r--drivers/md/dm-table.c57
-rw-r--r--drivers/md/dm-target.c2
-rw-r--r--drivers/md/dm-zero.c8
-rw-r--r--drivers/md/dm.c184
-rw-r--r--drivers/md/dm.h81
-rw-r--r--drivers/md/kcopyd.c4
-rw-r--r--drivers/md/linear.c74
-rw-r--r--drivers/md/md.c634
-rw-r--r--drivers/md/raid1.c43
-rw-r--r--drivers/md/raid10.c77
-rw-r--r--drivers/md/raid5.c1308
-rw-r--r--drivers/md/raid6main.c2427
-rw-r--r--drivers/media/Kconfig3
-rw-r--r--drivers/media/dvb/dvb-core/dvb_frontend.c27
-rw-r--r--drivers/media/dvb/ttpci/av7110.c8
-rw-r--r--drivers/media/dvb/ttpci/av7110_av.c25
-rw-r--r--drivers/media/dvb/ttpci/av7110_v4l.c50
-rw-r--r--drivers/media/video/Kconfig12
-rw-r--r--drivers/media/video/cx2341x.c17
-rw-r--r--drivers/media/video/cx88/Kconfig15
-rw-r--r--drivers/media/video/cx88/Makefile5
-rw-r--r--drivers/media/video/cx88/cx88-blackbird.c17
-rw-r--r--drivers/media/video/cx88/cx88-cards.c5
-rw-r--r--drivers/media/video/cx88/cx88-core.c2
-rw-r--r--drivers/media/video/cx88/cx88-i2c.c1
-rw-r--r--drivers/media/video/cx88/cx88-tvaudio.c2
-rw-r--r--drivers/media/video/cx88/cx88-video.c6
-rw-r--r--drivers/media/video/cx88/cx88.h7
-rw-r--r--drivers/media/video/tuner-core.c10
-rw-r--r--drivers/media/video/usbvideo/quickcam_messenger.c2
-rw-r--r--drivers/media/video/v4l2-common.c14
-rw-r--r--drivers/mtd/maps/sun_uflash.c195
-rw-r--r--drivers/net/irda/nsc-ircc.c8
-rw-r--r--drivers/net/ppp_generic.c3
-rw-r--r--drivers/net/wireless/bcm43xx/Kconfig1
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx.h6
-rw-r--r--drivers/net/wireless/bcm43xx/bcm43xx_main.c37
-rw-r--r--drivers/parport/parport_sunbpp.c2
-rw-r--r--drivers/pci/msi-apic.c1
-rw-r--r--drivers/s390/net/lcs.c7
-rw-r--r--drivers/sbus/char/cpwatchdog.c2
-rw-r--r--drivers/sbus/char/openprom.c593
-rw-r--r--drivers/sbus/char/riowatchdog.c4
-rw-r--r--drivers/scsi/aacraid/comminit.c5
-rw-r--r--drivers/scsi/ncr53c8xx.c3
-rw-r--r--drivers/scsi/qla2xxx/qla_init.c3
-rw-r--r--drivers/usb/host/hc_crisv10.c3
-rw-r--r--drivers/usb/serial/whiteheat.c19
-rw-r--r--drivers/video/Kconfig49
-rw-r--r--drivers/video/Makefile9
-rw-r--r--drivers/video/aty/aty128fb.c36
-rw-r--r--drivers/video/aty/atyfb_base.c43
-rw-r--r--drivers/video/aty/mach64_accel.c10
-rw-r--r--drivers/video/aty/mach64_cursor.c33
-rw-r--r--drivers/video/aty/radeon_base.c2
-rw-r--r--drivers/video/au1100fb.c41
-rw-r--r--drivers/video/backlight/Kconfig12
-rw-r--r--drivers/video/backlight/Makefile2
-rw-r--r--drivers/video/backlight/locomolcd.c123
-rw-r--r--drivers/video/cfbimgblt.c1
-rw-r--r--drivers/video/cirrusfb.c2
-rw-r--r--drivers/video/console/fbcon.c361
-rw-r--r--drivers/video/console/fbcon.h1
-rw-r--r--drivers/video/console/mdacon.c2
-rw-r--r--drivers/video/console/newport_con.c38
-rw-r--r--drivers/video/console/promcon.c4
-rw-r--r--drivers/video/console/sticon.c2
-rw-r--r--drivers/video/console/vgacon.c28
-rw-r--r--drivers/video/epson1355fb.c29
-rw-r--r--drivers/video/fbcvt.c1
-rw-r--r--drivers/video/fbmem.c58
-rw-r--r--drivers/video/fbmon.c33
-rw-r--r--drivers/video/fbsysfs.c52
-rw-r--r--drivers/video/geode/gx1fb_core.c3
-rw-r--r--drivers/video/geode/gxfb_core.c3
-rw-r--r--drivers/video/i810/i810_main.c3
-rw-r--r--drivers/video/imacfb.c345
-rw-r--r--drivers/video/macmodes.c6
-rw-r--r--drivers/video/macmodes.h7
-rw-r--r--drivers/video/modedb.c11
-rw-r--r--drivers/video/neofb.c32
-rw-r--r--drivers/video/nvidia/nv_hw.c10
-rw-r--r--drivers/video/nvidia/nvidia.c370
-rw-r--r--drivers/video/riva/fbdev.c2
-rw-r--r--drivers/video/s3c2410fb.c17
-rw-r--r--drivers/video/savage/savagefb.h45
-rw-r--r--drivers/video/savage/savagefb_driver.c1475
-rw-r--r--drivers/video/sis/sis_main.c2
-rw-r--r--drivers/video/skeletonfb.c5
-rw-r--r--drivers/video/tgafb.c1
-rw-r--r--drivers/video/vesafb.c59
-rw-r--r--drivers/video/vfb.c29
-rw-r--r--drivers/video/vga16fb.c40
149 files changed, 7866 insertions, 6462 deletions
diff --git a/drivers/Makefile b/drivers/Makefile
index 3c5170310bd..fc2d744a4e4 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -74,4 +74,5 @@ obj-$(CONFIG_SGI_SN) += sn/
obj-y += firmware/
obj-$(CONFIG_CRYPTO) += crypto/
obj-$(CONFIG_SUPERH) += sh/
+obj-$(CONFIG_GENERIC_TIME) += clocksource/
obj-$(CONFIG_DMA_ENGINE) += dma/
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 3b97a5eae9e..8a74bf3efd8 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -206,11 +206,11 @@ acpi_processor_power_activate(struct acpi_processor *pr,
static void acpi_safe_halt(void)
{
- clear_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status &= ~TS_POLLING;
smp_mb__after_clear_bit();
if (!need_resched())
safe_halt();
- set_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status |= TS_POLLING;
}
static atomic_t c3_cpu_count;
@@ -330,10 +330,10 @@ static void acpi_processor_idle(void)
* Invoke the current Cx state to put the processor to sleep.
*/
if (cx->type == ACPI_STATE_C2 || cx->type == ACPI_STATE_C3) {
- clear_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status &= ~TS_POLLING;
smp_mb__after_clear_bit();
if (need_resched()) {
- set_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status |= TS_POLLING;
local_irq_enable();
return;
}
@@ -369,9 +369,14 @@ static void acpi_processor_idle(void)
t2 = inl(acpi_fadt.xpm_tmr_blk.address);
/* Get end time (ticks) */
t2 = inl(acpi_fadt.xpm_tmr_blk.address);
+
+#ifdef CONFIG_GENERIC_TIME
+ /* TSC halts in C2, so notify users */
+ mark_tsc_unstable();
+#endif
/* Re-enable interrupts */
local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status |= TS_POLLING;
/* Compute time (ticks) that we were actually asleep */
sleep_ticks =
ticks_elapsed(t1, t2) - cx->latency_ticks - C2_OVERHEAD;
@@ -409,9 +414,13 @@ static void acpi_processor_idle(void)
ACPI_MTX_DO_NOT_LOCK);
}
+#ifdef CONFIG_GENERIC_TIME
+ /* TSC halts in C3, so notify users */
+ mark_tsc_unstable();
+#endif
/* Re-enable interrupts */
local_irq_enable();
- set_thread_flag(TIF_POLLING_NRFLAG);
+ current_thread_info()->status |= TS_POLLING;
/* Compute time (ticks) that we were actually asleep */
sleep_ticks =
ticks_elapsed(t1, t2) - cx->latency_ticks - C3_OVERHEAD;
diff --git a/drivers/base/power/resume.c b/drivers/base/power/resume.c
index 520679ce53a..826093ef4c7 100644
--- a/drivers/base/power/resume.c
+++ b/drivers/base/power/resume.c
@@ -53,8 +53,7 @@ void dpm_resume(void)
struct device * dev = to_device(entry);
get_device(dev);
- list_del_init(entry);
- list_add_tail(entry, &dpm_active);
+ list_move_tail(entry, &dpm_active);
up(&dpm_list_sem);
if (!dev->power.prev_state.event)
@@ -101,8 +100,7 @@ void dpm_power_up(void)
struct device * dev = to_device(entry);
get_device(dev);
- list_del_init(entry);
- list_add_tail(entry, &dpm_active);
+ list_move_tail(entry, &dpm_active);
resume_device(dev);
put_device(dev);
}
diff --git a/drivers/base/power/suspend.c b/drivers/base/power/suspend.c
index 1a1fe43a305..69509e02f70 100644
--- a/drivers/base/power/suspend.c
+++ b/drivers/base/power/suspend.c
@@ -116,12 +116,10 @@ int device_suspend(pm_message_t state)
/* Check if the device got removed */
if (!list_empty(&dev->power.entry)) {
/* Move it to the dpm_off or dpm_off_irq list */
- if (!error) {
- list_del(&dev->power.entry);
- list_add(&dev->power.entry, &dpm_off);
- } else if (error == -EAGAIN) {
- list_del(&dev->power.entry);
- list_add(&dev->power.entry, &dpm_off_irq);
+ if (!error)
+ list_move(&dev->power.entry, &dpm_off);
+ else if (error == -EAGAIN) {
+ list_move(&dev->power.entry, &dpm_off_irq);
error = 0;
}
}
@@ -139,8 +137,7 @@ int device_suspend(pm_message_t state)
*/
while (!list_empty(&dpm_off_irq)) {
struct list_head * entry = dpm_off_irq.next;
- list_del(entry);
- list_add(entry, &dpm_off);
+ list_move(entry, &dpm_off);
}
dpm_resume();
}
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index a71a240611e..ed8dca84ff6 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -423,6 +423,9 @@ static int dtl1_hci_send_frame(struct sk_buff *skb)
nsh.len = skb->len;
s = bt_skb_alloc(NSHL + skb->len + 1, GFP_ATOMIC);
+ if (!s)
+ return -ENOMEM;
+
skb_reserve(s, NSHL);
memcpy(skb_put(s, skb->len), skb->data, skb->len);
if (skb->len & 0x0001)
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 63f28d169b3..3610c572955 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -62,6 +62,23 @@ config HW_CONSOLE
depends on VT && !S390 && !UML
default y
+config VT_HW_CONSOLE_BINDING
+ bool "Support for binding and unbinding console drivers"
+ depends on HW_CONSOLE
+ default n
+ ---help---
+ The virtual terminal is the device that interacts with the physical
+ terminal through console drivers. On these systems, at least one
+ console driver is loaded. In other configurations, additional console
+ drivers may be enabled, such as the framebuffer console. If more than
+ 1 console driver is enabled, setting this to 'y' will allow you to
+ select the console driver that will serve as the backend for the
+ virtual terminals.
+
+ See <file:Documentation/console/console.txt> for more
+ information. For framebuffer console users, please refer to
+ <file:Documentation/fb/fbcon.txt>.
+
config SERIAL_NONSTANDARD
bool "Non-standard serial port support"
---help---
@@ -670,20 +687,7 @@ config NWFLASH
If you're not sure, say N.
-config HW_RANDOM
- tristate "Intel/AMD/VIA HW Random Number Generator support"
- depends on (X86 || IA64) && PCI
- ---help---
- This driver provides kernel-side support for the Random Number
- Generator hardware found on Intel i8xx-based motherboards,
- AMD 76x-based motherboards, and Via Nehemiah CPUs.
-
- Provides a character driver, used to read() entropy data.
-
- To compile this driver as a module, choose M here: the
- module will be called hw_random.
-
- If unsure, say N.
+source "drivers/char/hw_random/Kconfig"
config NVRAM
tristate "/dev/nvram support"
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index fb919bfb282..524105597ea 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -75,7 +75,7 @@ endif
obj-$(CONFIG_TOSHIBA) += toshiba.o
obj-$(CONFIG_I8K) += i8k.o
obj-$(CONFIG_DS1620) += ds1620.o
-obj-$(CONFIG_HW_RANDOM) += hw_random.o
+obj-$(CONFIG_HW_RANDOM) += hw_random/
obj-$(CONFIG_FTAPE) += ftape/
obj-$(CONFIG_COBALT_LCD) += lcd.o
obj-$(CONFIG_PPDEV) += ppdev.o
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index 46685a54077..9826a399fa0 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -55,9 +55,9 @@ config AGP_AMD
X on AMD Irongate, 761, and 762 chipsets.
config AGP_AMD64
- tristate "AMD Opteron/Athlon64 on-CPU GART support" if !GART_IOMMU
+ tristate "AMD Opteron/Athlon64 on-CPU GART support" if !IOMMU
depends on AGP && X86
- default y if GART_IOMMU
+ default y if IOMMU
help
This option gives you AGP support for the GLX component of
X using the on-CPU northbridge of the AMD Athlon64/Opteron CPUs.
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index ac3c33a2e37..f690ee8cb73 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -15,11 +15,9 @@
#include <linux/agp_backend.h>
#include <linux/mmzone.h>
#include <asm/page.h> /* PAGE_SIZE */
+#include <asm/k8.h>
#include "agp.h"
-/* Will need to be increased if AMD64 ever goes >8-way. */
-#define MAX_HAMMER_GARTS 8
-
/* PTE bits. */
#define GPTE_VALID 1
#define GPTE_COHERENT 2
@@ -53,28 +51,12 @@
#define ULI_X86_64_HTT_FEA_REG 0x50
#define ULI_X86_64_ENU_SCR_REG 0x54
-static int nr_garts;
-static struct pci_dev * hammers[MAX_HAMMER_GARTS];
-
static struct resource *aperture_resource;
static int __initdata agp_try_unsupported = 1;
-#define for_each_nb() for(gart_iterator=0;gart_iterator<nr_garts;gart_iterator++)
-
-static void flush_amd64_tlb(struct pci_dev *dev)
-{
- u32 tmp;
-
- pci_read_config_dword (dev, AMD64_GARTCACHECTL, &tmp);
- tmp |= INVGART;
- pci_write_config_dword (dev, AMD64_GARTCACHECTL, tmp);
-}
-
static void amd64_tlbflush(struct agp_memory *temp)
{
- int gart_iterator;
- for_each_nb()
- flush_amd64_tlb(hammers[gart_iterator]);
+ k8_flush_garts();
}
static int amd64_insert_memory(struct agp_memory *mem, off_t pg_start, int type)
@@ -153,7 +135,7 @@ static int amd64_fetch_size(void)
u32 temp;
struct aper_size_info_32 *values;
- dev = hammers[0];
+ dev = k8_northbridges[0];
if (dev==NULL)
return 0;
@@ -201,9 +183,6 @@ static u64 amd64_configure (struct pci_dev *hammer, u64 gatt_table)
tmp &= ~(DISGARTCPU | DISGARTIO);
pci_write_config_dword(hammer, AMD64_GARTAPERTURECTL, tmp);
- /* keep CPU's coherent. */
- flush_amd64_tlb (hammer);
-
return aper_base;
}
@@ -222,13 +201,14 @@ static struct aper_size_info_32 amd_8151_sizes[7] =
static int amd_8151_configure(void)
{
unsigned long gatt_bus = virt_to_gart(agp_bridge->gatt_table_real);
- int gart_iterator;
+ int i;
/* Configure AGP regs in each x86-64 host bridge. */
- for_each_nb() {
+ for (i = 0; i < num_k8_northbridges; i++) {
agp_bridge->gart_bus_addr =
- amd64_configure(hammers[gart_iterator],gatt_bus);
+ amd64_configure(k8_northbridges[i], gatt_bus);
}
+ k8_flush_garts();
return 0;
}
@@ -236,12 +216,13 @@ static int amd_8151_configure(void)
static void amd64_cleanup(void)
{
u32 tmp;
- int gart_iterator;
- for_each_nb() {
+ int i;
+ for (i = 0; i < num_k8_northbridges; i++) {
+ struct pci_dev *dev = k8_northbridges[i];
/* disable gart translation */
- pci_read_config_dword (hammers[gart_iterator], AMD64_GARTAPERTURECTL, &tmp);
+ pci_read_config_dword (dev, AMD64_GARTAPERTURECTL, &tmp);
tmp &= ~AMD64_GARTEN;
- pci_write_config_dword (hammers[gart_iterator], AMD64_GARTAPERTURECTL, tmp);
+ pci_write_config_dword (dev, AMD64_GARTAPERTURECTL, tmp);
}
}
@@ -311,7 +292,7 @@ static int __devinit aperture_valid(u64 aper, u32 size)
/*
* W*s centric BIOS sometimes only set up the aperture in the AGP
* bridge, not the northbridge. On AMD64 this is handled early
- * in aperture.c, but when GART_IOMMU is not enabled or we run
+ * in aperture.c, but when IOMMU is not enabled or we run
* on a 32bit kernel this needs to be redone.
* Unfortunately it is impossible to fix the aperture here because it's too late
* to allocate that much memory. But at least error out cleanly instead of
@@ -361,17 +342,15 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
{
- struct pci_dev *loop_dev = NULL;
- int i = 0;
-
- /* cache pci_devs of northbridges. */
- while ((loop_dev = pci_get_device(PCI_VENDOR_ID_AMD, 0x1103, loop_dev))
- != NULL) {
- if (i == MAX_HAMMER_GARTS) {
- printk(KERN_ERR PFX "Too many northbridges for AGP\n");
- return -1;
- }
- if (fix_northbridge(loop_dev, pdev, cap_ptr) < 0) {
+ int i;
+
+ if (cache_k8_northbridges() < 0)
+ return -ENODEV;
+
+ i = 0;
+ for (i = 0; i < num_k8_northbridges; i++) {
+ struct pci_dev *dev = k8_northbridges[i];
+ if (fix_northbridge(dev, pdev, cap_ptr) < 0) {
printk(KERN_ERR PFX "No usable aperture found.\n");
#ifdef __x86_64__
/* should port this to i386 */
@@ -379,10 +358,8 @@ static __devinit int cache_nbs (struct pci_dev *pdev, u32 cap_ptr)
#endif
return -1;
}
- hammers[i++] = loop_dev;
}
- nr_garts = i;
- return i == 0 ? -1 : 0;
+ return 0;
}
/* Handle AMD 8151 quirks */
@@ -450,7 +427,7 @@ static int __devinit uli_agp_init(struct pci_dev *pdev)
}
/* shadow x86-64 registers into ULi registers */
- pci_read_config_dword (hammers[0], AMD64_GARTAPERTUREBASE, &httfea);
+ pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &httfea);
/* if x86-64 aperture base is beyond 4G, exit here */
if ((httfea & 0x7fff) >> (32 - 25))
@@ -513,7 +490,7 @@ static int __devinit nforce3_agp_init(struct pci_dev *pdev)
pci_write_config_dword(dev1, NVIDIA_X86_64_1_APSIZE, tmp);
/* shadow x86-64 registers into NVIDIA registers */
- pci_read_config_dword (hammers[0], AMD64_GARTAPERTUREBASE, &apbase);
+ pci_read_config_dword (k8_northbridges[0], AMD64_GARTAPERTUREBASE, &apbase);
/* if x86-64 aperture base is beyond 4G, exit here */
if ( (apbase & 0x7fff) >> (32 - 25) ) {
@@ -754,10 +731,6 @@ static struct pci_driver agp_amd64_pci_driver = {
int __init agp_amd64_init(void)
{
int err = 0;
- static struct pci_device_id amd64nb[] = {
- { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1103) },
- { },
- };
if (agp_off)
return -EINVAL;
@@ -774,7 +747,7 @@ int __init agp_amd64_init(void)
}
/* First check that we have at least one AMD64 NB */
- if (!pci_dev_present(amd64nb))
+ if (!pci_dev_present(k8_nb_ids))
return -ENODEV;
/* Look for any AGP bridge */
@@ -802,7 +775,7 @@ static void __exit agp_amd64_cleanup(void)
/* On AMD64 the PCI driver needs to initialize this driver early
for the IOMMU, so it has to be called via a backdoor. */
-#ifndef CONFIG_GART_IOMMU
+#ifndef CONFIG_IOMMU
module_init(agp_amd64_init);
module_exit(agp_amd64_cleanup);
#endif
diff --git a/drivers/char/hangcheck-timer.c b/drivers/char/hangcheck-timer.c
index ac626418b32..d69f2ad9a67 100644
--- a/drivers/char/hangcheck-timer.c
+++ b/drivers/char/hangcheck-timer.c
@@ -117,12 +117,12 @@ __setup("hcheck_reboot", hangcheck_parse_reboot);
__setup("hcheck_dump_tasks", hangcheck_parse_dump_tasks);
#endif /* not MODULE */
-#if defined(CONFIG_X86) || defined(CONFIG_S390)
+#if defined(CONFIG_X86_64) || defined(CONFIG_S390)
# define HAVE_MONOTONIC
# define TIMER_FREQ 1000000000ULL
#elif defined(CONFIG_IA64)
# define TIMER_FREQ ((unsigned long long)local_cpu_data->itc_freq)
-#elif defined(CONFIG_PPC64)
+#else
# define TIMER_FREQ (HZ*loops_per_jiffy)
#endif
diff --git a/drivers/char/hw_random.c b/drivers/char/hw_random.c
deleted file mode 100644
index 29dc87e5902..00000000000
--- a/drivers/char/hw_random.c
+++ /dev/null
@@ -1,698 +0,0 @@
-/*
- Added support for the AMD Geode LX RNG
- (c) Copyright 2004-2005 Advanced Micro Devices, Inc.
-
- derived from
-
- Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
- (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
-
- derived from
-
- Hardware driver for the AMD 768 Random Number Generator (RNG)
- (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
-
- derived from
-
- Hardware driver for Intel i810 Random Number Generator (RNG)
- Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
- Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
-
- Please read Documentation/hw_random.txt for details on use.
-
- ----------------------------------------------------------
- This software may be used and distributed according to the terms
- of the GNU General Public License, incorporated herein by reference.
-
- */
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/random.h>
-#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
-#include <linux/mm.h>
-#include <linux/delay.h>
-
-#ifdef __i386__
-#include <asm/msr.h>
-#include <asm/cpufeature.h>
-#endif
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-
-/*
- * core module and version information
- */
-#define RNG_VERSION "1.0.0"
-#define RNG_MODULE_NAME "hw_random"
-#define RNG_DRIVER_NAME RNG_MODULE_NAME " hardware driver " RNG_VERSION
-#define PFX RNG_MODULE_NAME ": "
-
-
-/*
- * debugging macros
- */
-
-/* pr_debug() collapses to a no-op if DEBUG is not defined */
-#define DPRINTK(fmt, args...) pr_debug(PFX "%s: " fmt, __FUNCTION__ , ## args)
-
-
-#undef RNG_NDEBUG /* define to enable lightweight runtime checks */
-#ifdef RNG_NDEBUG
-#define assert(expr) \
- if(!(expr)) { \
- printk(KERN_DEBUG PFX "Assertion failed! %s,%s,%s," \
- "line=%d\n", #expr, __FILE__, __FUNCTION__, __LINE__); \
- }
-#else
-#define assert(expr)
-#endif
-
-#define RNG_MISCDEV_MINOR 183 /* official */
-
-static int rng_dev_open (struct inode *inode, struct file *filp);
-static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size,
- loff_t * offp);
-
-static int __init intel_init (struct pci_dev *dev);
-static void intel_cleanup(void);
-static unsigned int intel_data_present (void);
-static u32 intel_data_read (void);
-
-static int __init amd_init (struct pci_dev *dev);
-static void amd_cleanup(void);
-static unsigned int amd_data_present (void);
-static u32 amd_data_read (void);
-
-#ifdef __i386__
-static int __init via_init(struct pci_dev *dev);
-static void via_cleanup(void);
-static unsigned int via_data_present (void);
-static u32 via_data_read (void);
-#endif
-
-static int __init geode_init(struct pci_dev *dev);
-static void geode_cleanup(void);
-static unsigned int geode_data_present (void);
-static u32 geode_data_read (void);
-
-struct rng_operations {
- int (*init) (struct pci_dev *dev);
- void (*cleanup) (void);
- unsigned int (*data_present) (void);
- u32 (*data_read) (void);
- unsigned int n_bytes; /* number of bytes per ->data_read */
-};
-static struct rng_operations *rng_ops;
-
-static struct file_operations rng_chrdev_ops = {
- .owner = THIS_MODULE,
- .open = rng_dev_open,
- .read = rng_dev_read,
-};
-
-
-static struct miscdevice rng_miscdev = {
- RNG_MISCDEV_MINOR,
- RNG_MODULE_NAME,
- &rng_chrdev_ops,
-};
-
-enum {
- rng_hw_none,
- rng_hw_intel,
- rng_hw_amd,
-#ifdef __i386__
- rng_hw_via,
-#endif
- rng_hw_geode,
-};
-
-static struct rng_operations rng_vendor_ops[] = {
- /* rng_hw_none */
- { },
-
- /* rng_hw_intel */
- { intel_init, intel_cleanup, intel_data_present,
- intel_data_read, 1 },
-
- /* rng_hw_amd */
- { amd_init, amd_cleanup, amd_data_present, amd_data_read, 4 },
-
-#ifdef __i386__
- /* rng_hw_via */
- { via_init, via_cleanup, via_data_present, via_data_read, 1 },
-#endif
-
- /* rng_hw_geode */
- { geode_init, geode_cleanup, geode_data_present, geode_data_read, 4 }
-};
-
-/*
- * Data for PCI driver interface
- *
- * This data only exists for exporting the supported
- * PCI ids via MODULE_DEVICE_TABLE. We do not actually
- * register a pci_driver, because someone else might one day
- * want to register another driver on the same PCI id.
- */
-static struct pci_device_id rng_pci_tbl[] = {
- { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd },
- { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_amd },
-
- { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
- { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
- { 0x8086, 0x2430, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
- { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
- { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
- { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_intel },
-
- { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_AES,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, rng_hw_geode },
-
- { 0, }, /* terminate list */
-};
-MODULE_DEVICE_TABLE (pci, rng_pci_tbl);
-
-
-/***********************************************************************
- *
- * Intel RNG operations
- *
- */
-
-/*
- * RNG registers (offsets from rng_mem)
- */
-#define INTEL_RNG_HW_STATUS 0
-#define INTEL_RNG_PRESENT 0x40
-#define INTEL_RNG_ENABLED 0x01
-#define INTEL_RNG_STATUS 1
-#define INTEL_RNG_DATA_PRESENT 0x01
-#define INTEL_RNG_DATA 2
-
-/*
- * Magic address at which Intel PCI bridges locate the RNG
- */
-#define INTEL_RNG_ADDR 0xFFBC015F
-#define INTEL_RNG_ADDR_LEN 3
-
-/* token to our ioremap'd RNG register area */
-static void __iomem *rng_mem;
-
-static inline u8 intel_hwstatus (void)
-{
- assert (rng_mem != NULL);
- return readb (rng_mem + INTEL_RNG_HW_STATUS);
-}
-
-static inline u8 intel_hwstatus_set (u8 hw_status)
-{
- assert (rng_mem != NULL);
- writeb (hw_status, rng_mem + INTEL_RNG_HW_STATUS);
- return intel_hwstatus ();
-}
-
-static unsigned int intel_data_present(void)
-{
- assert (rng_mem != NULL);
-
- return (readb (rng_mem + INTEL_RNG_STATUS) & INTEL_RNG_DATA_PRESENT) ?
- 1 : 0;
-}
-
-static u32 intel_data_read(void)
-{
- assert (rng_mem != NULL);
-
- return readb (rng_mem + INTEL_RNG_DATA);
-}
-
-static int __init intel_init (struct pci_dev *dev)
-{
- int rc;
- u8 hw_status;
-
- DPRINTK ("ENTER\n");
-
- rng_mem = ioremap (INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN);
- if (rng_mem == NULL) {
- printk (KERN_ERR PFX "cannot ioremap RNG Memory\n");
- rc = -EBUSY;
- goto err_out;
- }
-
- /* Check for Intel 82802 */
- hw_status = intel_hwstatus ();
- if ((hw_status & INTEL_RNG_PRESENT) == 0) {
- printk (KERN_ERR PFX "RNG not detected\n");
- rc = -ENODEV;
- goto err_out_free_map;
- }
-
- /* turn RNG h/w on, if it's off */
- if ((hw_status & INTEL_RNG_ENABLED) == 0)
- hw_status = intel_hwstatus_set (hw_status | INTEL_RNG_ENABLED);
- if ((hw_status & INTEL_RNG_ENABLED) == 0) {
- printk (KERN_ERR PFX "cannot enable RNG, aborting\n");
- rc = -EIO;
- goto err_out_free_map;
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out_free_map:
- iounmap (rng_mem);
- rng_mem = NULL;
-err_out:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-static void intel_cleanup(void)
-{
- u8 hw_status;
-
- hw_status = intel_hwstatus ();
- if (hw_status & INTEL_RNG_ENABLED)
- intel_hwstatus_set (hw_status & ~INTEL_RNG_ENABLED);
- else
- printk(KERN_WARNING PFX "unusual: RNG already disabled\n");
- iounmap(rng_mem);
- rng_mem = NULL;
-}
-
-/***********************************************************************
- *
- * AMD RNG operations
- *
- */
-
-static u32 pmbase; /* PMxx I/O base */
-static struct pci_dev *amd_dev;
-
-static unsigned int amd_data_present (void)
-{
- return inl(pmbase + 0xF4) & 1;
-}
-
-
-static u32 amd_data_read (void)
-{
- return inl(pmbase + 0xF0);
-}
-
-static int __init amd_init (struct pci_dev *dev)
-{
- int rc;
- u8 rnen;
-
- DPRINTK ("ENTER\n");
-
- pci_read_config_dword(dev, 0x58, &pmbase);
-
- pmbase &= 0x0000FF00;
-
- if (pmbase == 0)
- {
- printk (KERN_ERR PFX "power management base not set\n");
- rc = -EIO;
- goto err_out;
- }
-
- pci_read_config_byte(dev, 0x40, &rnen);
- rnen |= (1 << 7); /* RNG on */
- pci_write_config_byte(dev, 0x40, rnen);
-
- pci_read_config_byte(dev, 0x41, &rnen);
- rnen |= (1 << 7); /* PMIO enable */
- pci_write_config_byte(dev, 0x41, rnen);
-
- pr_info( PFX "AMD768 system management I/O registers at 0x%X.\n",
- pmbase);
-
- amd_dev = dev;
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-static void amd_cleanup(void)
-{
- u8 rnen;
-
- pci_read_config_byte(amd_dev, 0x40, &rnen);
- rnen &= ~(1 << 7); /* RNG off */
- pci_write_config_byte(amd_dev, 0x40, rnen);
-
- /* FIXME: twiddle pmio, also? */
-}
-
-#ifdef __i386__
-/***********************************************************************
- *
- * VIA RNG operations
- *
- */
-
-enum {
- VIA_STRFILT_CNT_SHIFT = 16,
- VIA_STRFILT_FAIL = (1 << 15),
- VIA_STRFILT_ENABLE = (1 << 14),
- VIA_RAWBITS_ENABLE = (1 << 13),
- VIA_RNG_ENABLE = (1 << 6),
- VIA_XSTORE_CNT_MASK = 0x0F,
-
- VIA_RNG_CHUNK_8 = 0x00, /* 64 rand bits, 64 stored bits */
- VIA_RNG_CHUNK_4 = 0x01, /* 32 rand bits, 32 stored bits */
- VIA_RNG_CHUNK_4_MASK = 0xFFFFFFFF,
- VIA_RNG_CHUNK_2 = 0x02, /* 16 rand bits, 32 stored bits */
- VIA_RNG_CHUNK_2_MASK = 0xFFFF,
- VIA_RNG_CHUNK_1 = 0x03, /* 8 rand bits, 32 stored bits */
- VIA_RNG_CHUNK_1_MASK = 0xFF,
-};
-
-static u32 via_rng_datum;
-
-/*
- * Investigate using the 'rep' prefix to obtain 32 bits of random data
- * in one insn. The upside is potentially better performance. The
- * downside is that the instruction becomes no longer atomic. Due to
- * this, just like familiar issues with /dev/random itself, the worst
- * case of a 'rep xstore' could potentially pause a cpu for an
- * unreasonably long time. In practice, this condition would likely
- * only occur when the hardware is failing. (or so we hope :))
- *
- * Another possible performance boost may come from simply buffering
- * until we have 4 bytes, thus returning a u32 at a time,
- * instead of the current u8-at-a-time.
- */
-
-static inline u32 xstore(u32 *addr, u32 edx_in)
-{
- u32 eax_out;
-
- asm(".byte 0x0F,0xA7,0xC0 /* xstore %%edi (addr=%0) */"
- :"=m"(*addr), "=a"(eax_out)
- :"D"(addr), "d"(edx_in));
-
- return eax_out;
-}
-
-static unsigned int via_data_present(void)
-{
- u32 bytes_out;
-
- /* We choose the recommended 1-byte-per-instruction RNG rate,
- * for greater randomness at the expense of speed. Larger
- * values 2, 4, or 8 bytes-per-instruction yield greater
- * speed at lesser randomness.
- *
- * If you change this to another VIA_CHUNK_n, you must also
- * change the ->n_bytes values in rng_vendor_ops[] tables.
- * VIA_CHUNK_8 requires further code changes.
- *
- * A copy of MSR_VIA_RNG is placed in eax_out when xstore
- * completes.
- */
- via_rng_datum = 0; /* paranoia, not really necessary */
- bytes_out = xstore(&via_rng_datum, VIA_RNG_CHUNK_1) & VIA_XSTORE_CNT_MASK;
- if (bytes_out == 0)
- return 0;
-
- return 1;
-}
-
-static u32 via_data_read(void)
-{
- return via_rng_datum;
-}
-
-static int __init via_init(struct pci_dev *dev)
-{
- u32 lo, hi, old_lo;
-
- /* Control the RNG via MSR. Tread lightly and pay very close
- * close attention to values written, as the reserved fields
- * are documented to be "undefined and unpredictable"; but it
- * does not say to write them as zero, so I make a guess that
- * we restore the values we find in the register.
- */
- rdmsr(MSR_VIA_RNG, lo, hi);
-
- old_lo = lo;
- lo &= ~(0x7f << VIA_STRFILT_CNT_SHIFT);
- lo &= ~VIA_XSTORE_CNT_MASK;
- lo &= ~(VIA_STRFILT_ENABLE | VIA_STRFILT_FAIL | VIA_RAWBITS_ENABLE);
- lo |= VIA_RNG_ENABLE;
-
- if (lo != old_lo)
- wrmsr(MSR_VIA_RNG, lo, hi);
-
- /* perhaps-unnecessary sanity check; remove after testing if
- unneeded */
- rdmsr(MSR_VIA_RNG, lo, hi);
- if ((lo & VIA_RNG_ENABLE) == 0) {
- printk(KERN_ERR PFX "cannot enable VIA C3 RNG, aborting\n");
- return -ENODEV;
- }
-
- return 0;
-}
-
-static void via_cleanup(void)
-{
- /* do nothing */
-}
-#endif
-
-/***********************************************************************
- *
- * AMD Geode RNG operations
- *
- */
-
-static void __iomem *geode_rng_base = NULL;
-
-#define GEODE_RNG_DATA_REG 0x50
-#define GEODE_RNG_STATUS_REG 0x54
-
-static u32 geode_data_read(void)
-{
- u32 val;
-
- assert(geode_rng_base != NULL);
- val = readl(geode_rng_base + GEODE_RNG_DATA_REG);
- return val;
-}
-
-static unsigned int geode_data_present(void)
-{
- u32 val;
-
- assert(geode_rng_base != NULL);
- val = readl(geode_rng_base + GEODE_RNG_STATUS_REG);
- return val;
-}
-
-static void geode_cleanup(void)
-{
- iounmap(geode_rng_base);
- geode_rng_base = NULL;
-}
-
-static int geode_init(struct pci_dev *dev)
-{
- unsigned long rng_base = pci_resource_start(dev, 0);
-
- if (rng_base == 0)
- return 1;
-
- geode_rng_base = ioremap(rng_base, 0x58);
-
- if (geode_rng_base == NULL) {
- printk(KERN_ERR PFX "Cannot ioremap RNG memory\n");
- return -EBUSY;
- }
-
- return 0;
-}
-
-/***********************************************************************
- *
- * /dev/hwrandom character device handling (major 10, minor 183)
- *
- */
-
-static int rng_dev_open (struct inode *inode, struct file *filp)
-{
- /* enforce read-only access to this chrdev */
- if ((filp->f_mode & FMODE_READ) == 0)
- return -EINVAL;
- if (filp->f_mode & FMODE_WRITE)
- return -EINVAL;
-
- return 0;
-}
-
-
-static ssize_t rng_dev_read (struct file *filp, char __user *buf, size_t size,
- loff_t * offp)
-{
- static DEFINE_SPINLOCK(rng_lock);
- unsigned int have_data;
- u32 data = 0;
- ssize_t ret = 0;
-
- while (size) {
- spin_lock(&rng_lock);
-
- have_data = 0;
- if (rng_ops->data_present()) {
- data = rng_ops->data_read();
- have_data = rng_ops->n_bytes;
- }
-
- spin_unlock (&rng_lock);
-
- while (have_data && size) {
- if (put_user((u8)data, buf++)) {
- ret = ret ? : -EFAULT;
- break;
- }
- size--;
- ret++;
- have_data--;
- data>>=8;
- }
-
- if (filp->f_flags & O_NONBLOCK)
- return ret ? : -EAGAIN;
-
- if(need_resched())
- schedule_timeout_interruptible(1);
- else
- udelay(200); /* FIXME: We could poll for 250uS ?? */
-
- if (signal_pending (current))
- return ret ? : -ERESTARTSYS;
- }
- return ret;
-}
-
-
-
-/*
- * rng_init_one - look for and attempt to init a single RNG
- */
-static int __init rng_init_one (struct pci_dev *dev)
-{
- int rc;
-
- DPRINTK ("ENTER\n");
-
- assert(rng_ops != NULL);
-
- rc = rng_ops->init(dev);
- if (rc)
- goto err_out;
-
- rc = misc_register (&rng_miscdev);
- if (rc) {
- printk (KERN_ERR PFX "misc device register failed\n");
- goto err_out_cleanup_hw;
- }
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-
-err_out_cleanup_hw:
- rng_ops->cleanup();
-err_out:
- DPRINTK ("EXIT, returning %d\n", rc);
- return rc;
-}
-
-
-
-MODULE_AUTHOR("The Linux Kernel team");
-MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver");
-MODULE_LICENSE("GPL");
-
-
-/*
- * rng_init - initialize RNG module
- */
-static int __init rng_init (void)
-{
- int rc;
- struct pci_dev *pdev = NULL;
- const struct pci_device_id *ent;
-
- DPRINTK ("ENTER\n");
-
- /* Probe for Intel, AMD, Geode RNGs */
- for_each_pci_dev(pdev) {
- ent = pci_match_id(rng_pci_tbl, pdev);
- if (ent) {
- rng_ops = &rng_vendor_ops[ent->driver_data];
- goto match;
- }
- }
-
-#ifdef __i386__
- /* Probe for VIA RNG */
- if (cpu_has_xstore) {
- rng_ops = &rng_vendor_ops[rng_hw_via];
- pdev = NULL;
- goto match;
- }
-#endif
-
- DPRINTK ("EXIT, returning -ENODEV\n");
- return -ENODEV;
-
-match:
- rc = rng_init_one (pdev);
- if (rc)
- return rc;
-
- pr_info( RNG_DRIVER_NAME " loaded\n");
-
- DPRINTK ("EXIT, returning 0\n");
- return 0;
-}
-
-
-/*
- * rng_init - shutdown RNG module
- */
-static void __exit rng_cleanup (void)
-{
- DPRINTK ("ENTER\n");
-
- misc_deregister (&rng_miscdev);
-
- if (rng_ops->cleanup)
- rng_ops->cleanup();
-
- DPRINTK ("EXIT\n");
-}
-
-
-module_init (rng_init);
-module_exit (rng_cleanup);
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
new file mode 100644
index 00000000000..9f7635f7517
--- /dev/null
+++ b/drivers/char/hw_random/Kconfig
@@ -0,0 +1,90 @@
+#
+# Hardware Random Number Generator (RNG) configuration
+#
+
+config HW_RANDOM
+ bool "Hardware Random Number Generator Core support"
+ default y
+ ---help---
+ Hardware Random Number Generator Core infrastructure.
+
+ If unsure, say Y.
+
+config HW_RANDOM_INTEL
+ tristate "Intel HW Random Number Generator support"
+ depends on HW_RANDOM && (X86 || IA64) && PCI
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on Intel i8xx-based motherboards.
+
+ To compile this driver as a module, choose M here: the
+ module will be called intel-rng.
+
+ If unsure, say Y.
+
+config HW_RANDOM_AMD
+ tristate "AMD HW Random Number Generator support"
+ depends on HW_RANDOM && X86 && PCI
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on AMD 76x-based motherboards.
+
+ To compile this driver as a module, choose M here: the
+ module will be called amd-rng.
+
+ If unsure, say Y.
+
+config HW_RANDOM_GEODE
+ tristate "AMD Geode HW Random Number Generator support"
+ depends on HW_RANDOM && X86 && PCI
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on the AMD Geode LX.
+
+ To compile this driver as a module, choose M here: the
+ module will be called geode-rng.
+
+ If unsure, say Y.
+
+config HW_RANDOM_VIA
+ tristate "VIA HW Random Number Generator support"
+ depends on HW_RANDOM && X86_32
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on VIA based motherboards.
+
+ To compile this driver as a module, choose M here: the
+ module will be called via-rng.
+
+ If unsure, say Y.
+
+config HW_RANDOM_IXP4XX
+ tristate "Intel IXP4xx NPU HW Random Number Generator support"
+ depends on HW_RANDOM && ARCH_IXP4XX
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random
+ Number Generator hardware found on the Intel IXP4xx NPU.
+
+ To compile this driver as a module, choose M here: the
+ module will be called ixp4xx-rng.
+
+ If unsure, say Y.
+
+config HW_RANDOM_OMAP
+ tristate "OMAP Random Number Generator support"
+ depends on HW_RANDOM && (ARCH_OMAP16XX || ARCH_OMAP24XX)
+ default y
+ ---help---
+ This driver provides kernel-side support for the Random Number
+ Generator hardware found on OMAP16xx and OMAP24xx multimedia
+ processors.
+
+ To compile this driver as a module, choose M here: the
+ module will be called omap-rng.
+
+ If unsure, say Y.
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
new file mode 100644
index 00000000000..e263ae96f94
--- /dev/null
+++ b/drivers/char/hw_random/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for HW Random Number Generator (RNG) device drivers.
+#
+
+obj-$(CONFIG_HW_RANDOM) += core.o
+obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o
+obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o
+obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o
+obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o
+obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o
+obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
diff --git a/drivers/char/hw_random/amd-rng.c b/drivers/char/hw_random/amd-rng.c
new file mode 100644
index 00000000000..71e4e0f3fd5
--- /dev/null
+++ b/drivers/char/hw_random/amd-rng.c
@@ -0,0 +1,152 @@
+/*
+ * RNG driver for AMD RNGs
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * with the majority of the code coming from:
+ *
+ * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
+ * (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for the AMD 768 Random Number Generator (RNG)
+ * (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for Intel i810 Random Number Generator (RNG)
+ * Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/hw_random.h>
+#include <asm/io.h>
+
+
+#define PFX KBUILD_MODNAME ": "
+
+
+/*
+ * Data for PCI driver interface
+ *
+ * This data only exists for exporting the supported
+ * PCI ids via MODULE_DEVICE_TABLE. We do not actually
+ * register a pci_driver, because someone else might one day
+ * want to register another driver on the same PCI id.
+ */
+static const struct pci_device_id pci_tbl[] = {
+ { 0x1022, 0x7443, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x1022, 0x746b, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0, }, /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, pci_tbl);
+
+static struct pci_dev *amd_pdev;
+
+
+static int amd_rng_data_present(struct hwrng *rng)
+{
+ u32 pmbase = (u32)rng->priv;
+
+ return !!(inl(pmbase + 0xF4) & 1);
+}
+
+static int amd_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ u32 pmbase = (u32)rng->priv;
+
+ *data = inl(pmbase + 0xF0);
+
+ return 4;
+}
+
+static int amd_rng_init(struct hwrng *rng)
+{
+ u8 rnen;
+
+ pci_read_config_byte(amd_pdev, 0x40, &rnen);
+ rnen |= (1 << 7); /* RNG on */
+ pci_write_config_byte(amd_pdev, 0x40, rnen);
+
+ pci_read_config_byte(amd_pdev, 0x41, &rnen);
+ rnen |= (1 << 7); /* PMIO enable */
+ pci_write_config_byte(amd_pdev, 0x41, rnen);
+
+ return 0;
+}
+
+static void amd_rng_cleanup(struct hwrng *rng)
+{
+ u8 rnen;
+
+ pci_read_config_byte(amd_pdev, 0x40, &rnen);
+ rnen &= ~(1 << 7); /* RNG off */
+ pci_write_config_byte(amd_pdev, 0x40, rnen);
+}
+
+
+static struct hwrng amd_rng = {
+ .name = "amd",
+ .init = amd_rng_init,
+ .cleanup = amd_rng_cleanup,
+ .data_present = amd_rng_data_present,
+ .data_read = amd_rng_data_read,
+};
+
+
+static int __init mod_init(void)
+{
+ int err = -ENODEV;
+ struct pci_dev *pdev = NULL;
+ const struct pci_device_id *ent;
+ u32 pmbase;
+
+ for_each_pci_dev(pdev) {
+ ent = pci_match_id(pci_tbl, pdev);
+ if (ent)
+ goto found;
+ }
+ /* Device not found. */
+ goto out;
+
+found:
+ err = pci_read_config_dword(pdev, 0x58, &pmbase);
+ if (err)
+ goto out;
+ err = -EIO;
+ pmbase &= 0x0000FF00;
+ if (pmbase == 0)
+ goto out;
+ amd_rng.priv = (unsigned long)pmbase;
+ amd_pdev = pdev;
+
+ printk(KERN_INFO "AMD768 RNG detected\n");
+ err = hwrng_register(&amd_rng);
+ if (err) {
+ printk(KERN_ERR PFX "RNG registering failed (%d)\n",
+ err);
+ goto out;
+ }
+out:
+ return err;
+}
+
+static void __exit mod_exit(void)
+{
+ hwrng_unregister(&amd_rng);
+}
+
+subsys_initcall(mod_init);
+module_exit(mod_exit);
+
+MODULE_AUTHOR("The Linux Kernel team");
+MODULE_DESCRIPTION("H/W RNG driver for AMD chipsets");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
new file mode 100644
index 00000000000..88b026639f1
--- /dev/null
+++ b/drivers/char/hw_random/core.c
@@ -0,0 +1,354 @@
+/*
+ Added support for the AMD Geode LX RNG
+ (c) Copyright 2004-2005 Advanced Micro Devices, Inc.
+
+ derived from
+
+ Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
+ (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
+
+ derived from
+
+ Hardware driver for the AMD 768 Random Number Generator (RNG)
+ (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
+
+ derived from
+
+ Hardware driver for Intel i810 Random Number Generator (RNG)
+ Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+
+ Added generic RNG API
+ Copyright 2006 Michael Buesch <mbuesch@freenet.de>
+ Copyright 2005 (c) MontaVista Software, Inc.
+
+ Please read Documentation/hw_random.txt for details on use.
+
+ ----------------------------------------------------------
+ This software may be used and distributed according to the terms
+ of the GNU General Public License, incorporated herein by reference.
+
+ */
+
+
+#include <linux/device.h>
+#include <linux/hw_random.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/delay.h>
+#include <asm/uaccess.h>
+
+
+#define RNG_MODULE_NAME "hw_random"
+#define PFX RNG_MODULE_NAME ": "
+#define RNG_MISCDEV_MINOR 183 /* official */
+
+
+static struct hwrng *current_rng;
+static LIST_HEAD(rng_list);
+static DEFINE_MUTEX(rng_mutex);
+
+
+static inline int hwrng_init(struct hwrng *rng)
+{
+ if (!rng->init)
+ return 0;
+ return rng->init(rng);
+}
+
+static inline void hwrng_cleanup(struct hwrng *rng)
+{
+ if (rng && rng->cleanup)
+ rng->cleanup(rng);
+}
+
+static inline int hwrng_data_present(struct hwrng *rng)
+{
+ if (!rng->data_present)
+ return 1;
+ return rng->data_present(rng);
+}
+
+static inline int hwrng_data_read(struct hwrng *rng, u32 *data)
+{
+ return rng->data_read(rng, data);
+}
+
+
+static int rng_dev_open(struct inode *inode, struct file *filp)
+{
+ /* enforce read-only access to this chrdev */
+ if ((filp->f_mode & FMODE_READ) == 0)
+ return -EINVAL;
+ if (filp->f_mode & FMODE_WRITE)
+ return -EINVAL;
+ return 0;
+}
+
+static ssize_t rng_dev_read(struct file *filp, char __user *buf,
+ size_t size, loff_t *offp)
+{
+ u32 data;
+ ssize_t ret = 0;
+ int i, err = 0;
+ int data_present;
+ int bytes_read;
+
+ while (size) {
+ err = -ERESTARTSYS;
+ if (mutex_lock_interruptible(&rng_mutex))
+ goto out;
+ if (!current_rng) {
+ mutex_unlock(&rng_mutex);
+ err = -ENODEV;
+ goto out;
+ }
+ if (filp->f_flags & O_NONBLOCK) {
+ data_present = hwrng_data_present(current_rng);
+ } else {
+ /* Some RNG require some time between data_reads to gather
+ * new entropy. Poll it.
+ */
+ for (i = 0; i < 20; i++) {
+ data_present = hwrng_data_present(current_rng);
+ if (data_present)
+ break;
+ udelay(10);
+ }
+ }
+ bytes_read = 0;
+ if (data_present)
+ bytes_read = hwrng_data_read(current_rng, &data);
+ mutex_unlock(&rng_mutex);
+
+ err = -EAGAIN;
+ if (!bytes_read && (filp->f_flags & O_NONBLOCK))
+ goto out;
+
+ err = -EFAULT;
+ while (bytes_read && size) {
+ if (put_user((u8)data, buf++))
+ goto out;
+ size--;
+ ret++;
+ bytes_read--;
+ data >>= 8;
+ }
+
+ if (need_resched())
+ schedule_timeout_interruptible(1);
+ err = -ERESTARTSYS;
+ if (signal_pending(current))
+ goto out;
+ }
+out:
+ return ret ? : err;
+}
+
+
+static struct file_operations rng_chrdev_ops = {
+ .owner = THIS_MODULE,
+ .open = rng_dev_open,
+ .read = rng_dev_read,
+};
+
+static struct miscdevice rng_miscdev = {
+ .minor = RNG_MISCDEV_MINOR,
+ .name = RNG_MODULE_NAME,
+ .fops = &rng_chrdev_ops,
+};
+
+
+static ssize_t hwrng_attr_current_store(struct class_device *class,
+ const char *buf, size_t len)
+{
+ int err;
+ struct hwrng *rng;
+
+ err = mutex_lock_interruptible(&rng_mutex);
+ if (err)
+ return -ERESTARTSYS;
+ err = -ENODEV;
+ list_for_each_entry(rng, &rng_list, list) {
+ if (strcmp(rng->name, buf) == 0) {
+ if (rng == current_rng) {
+ err = 0;
+ break;
+ }
+ err = hwrng_init(rng);
+ if (err)
+ break;
+ hwrng_cleanup(current_rng);
+ current_rng = rng;
+ err = 0;
+ break;
+ }
+ }
+ mutex_unlock(&rng_mutex);
+
+ return err ? : len;
+}
+
+static ssize_t hwrng_attr_current_show(struct class_device *class,
+ char *buf)
+{
+ int err;
+ ssize_t ret;
+ const char *name = "none";
+
+ err = mutex_lock_interruptible(&rng_mutex);
+ if (err)
+ return -ERESTARTSYS;
+ if (current_rng)
+ name = current_rng->name;
+ ret = snprintf(buf, PAGE_SIZE, "%s\n", name);
+ mutex_unlock(&rng_mutex);
+
+ return ret;
+}
+
+static ssize_t hwrng_attr_available_show(struct class_device *class,
+ char *buf)
+{
+ int err;
+ ssize_t ret = 0;
+ struct hwrng *rng;
+
+ err = mutex_lock_interruptible(&rng_mutex);
+ if (err)
+ return -ERESTARTSYS;
+ buf[0] = '\0';
+ list_for_each_entry(rng, &rng_list, list) {
+ strncat(buf, rng->name, PAGE_SIZE - ret - 1);
+ ret += strlen(rng->name);
+ strncat(buf, " ", PAGE_SIZE - ret - 1);
+ ret++;
+ }
+ strncat(buf, "\n", PAGE_SIZE - ret - 1);
+ ret++;
+ mutex_unlock(&rng_mutex);
+
+ return ret;
+}
+
+static CLASS_DEVICE_ATTR(rng_current, S_IRUGO | S_IWUSR,
+ hwrng_attr_current_show,
+ hwrng_attr_current_store);
+static CLASS_DEVICE_ATTR(rng_available, S_IRUGO,
+ hwrng_attr_available_show,
+ NULL);
+
+
+static void unregister_miscdev(void)
+{
+ class_device_remove_file(rng_miscdev.class,
+ &class_device_attr_rng_available);
+ class_device_remove_file(rng_miscdev.class,
+ &class_device_attr_rng_current);
+ misc_deregister(&rng_miscdev);
+}
+
+static int register_miscdev(void)
+{
+ int err;
+
+ err = misc_register(&rng_miscdev);
+ if (err)
+ goto out;
+ err = class_device_create_file(rng_miscdev.class,
+ &class_device_attr_rng_current);
+ if (err)
+ goto err_misc_dereg;
+ err = class_device_create_file(rng_miscdev.class,
+ &class_device_attr_rng_available);
+ if (err)
+ goto err_remove_current;
+out:
+ return err;
+
+err_remove_current:
+ class_device_remove_file(rng_miscdev.class,
+ &class_device_attr_rng_current);
+err_misc_dereg:
+ misc_deregister(&rng_miscdev);
+ goto out;
+}
+
+int hwrng_register(struct hwrng *rng)
+{
+ int must_register_misc;
+ int err = -EINVAL;
+ struct hwrng *old_rng, *tmp;
+
+ if (rng->name == NULL ||
+ rng->data_read == NULL)
+ goto out;
+
+ mutex_lock(&rng_mutex);
+
+ /* Must not register two RNGs with the same name. */
+ err = -EEXIST;
+ list_for_each_entry(tmp, &rng_list, list) {
+ if (strcmp(tmp->name, rng->name) == 0)
+ goto out_unlock;
+ }
+
+ must_register_misc = (current_rng == NULL);
+ old_rng = current_rng;
+ if (!old_rng) {
+ err = hwrng_init(rng);
+ if (err)
+ goto out_unlock;
+ current_rng = rng;
+ }
+ err = 0;
+ if (must_register_misc) {
+ err = register_miscdev();
+ if (err) {
+ if (!old_rng) {
+ hwrng_cleanup(rng);
+ current_rng = NULL;
+ }
+ goto out_unlock;
+ }
+ }
+ INIT_LIST_HEAD(&rng->list);
+ list_add_tail(&rng->list, &rng_list);
+out_unlock:
+ mutex_unlock(&rng_mutex);
+out:
+ return err;
+}
+EXPORT_SYMBOL_GPL(hwrng_register);
+
+void hwrng_unregister(struct hwrng *rng)
+{
+ int err;
+
+ mutex_lock(&rng_mutex);
+
+ list_del(&rng->list);
+ if (current_rng == rng) {
+ hwrng_cleanup(rng);
+ if (list_empty(&rng_list)) {
+ current_rng = NULL;
+ } else {
+ current_rng = list_entry(rng_list.prev, struct hwrng, list);
+ err = hwrng_init(current_rng);
+ if (err)
+ current_rng = NULL;
+ }
+ }
+ if (list_empty(&rng_list))
+ unregister_miscdev();
+
+ mutex_unlock(&rng_mutex);
+}
+EXPORT_SYMBOL_GPL(hwrng_unregister);
+
+
+MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/geode-rng.c b/drivers/char/hw_random/geode-rng.c
new file mode 100644
index 00000000000..be61f22ee7b
--- /dev/null
+++ b/drivers/char/hw_random/geode-rng.c
@@ -0,0 +1,128 @@
+/*
+ * RNG driver for AMD Geode RNGs
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * with the majority of the code coming from:
+ *
+ * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
+ * (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for the AMD 768 Random Number Generator (RNG)
+ * (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for Intel i810 Random Number Generator (RNG)
+ * Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/hw_random.h>
+#include <asm/io.h>
+
+
+#define PFX KBUILD_MODNAME ": "
+
+#define GEODE_RNG_DATA_REG 0x50
+#define GEODE_RNG_STATUS_REG 0x54
+
+/*
+ * Data for PCI driver interface
+ *
+ * This data only exists for exporting the supported
+ * PCI ids via MODULE_DEVICE_TABLE. We do not actually
+ * register a pci_driver, because someone else might one day
+ * want to register another driver on the same PCI id.
+ */
+static const struct pci_device_id pci_tbl[] = {
+ { PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LX_AES,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0, }, /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, pci_tbl);
+
+
+static int geode_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+
+ *data = readl(mem + GEODE_RNG_DATA_REG);
+
+ return 4;
+}
+
+static int geode_rng_data_present(struct hwrng *rng)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+
+ return !!(readl(mem + GEODE_RNG_STATUS_REG));
+}
+
+
+static struct hwrng geode_rng = {
+ .name = "geode",
+ .data_present = geode_rng_data_present,
+ .data_read = geode_rng_data_read,
+};
+
+
+static int __init mod_init(void)
+{
+ int err = -ENODEV;
+ struct pci_dev *pdev = NULL;
+ const struct pci_device_id *ent;
+ void __iomem *mem;
+ unsigned long rng_base;
+
+ for_each_pci_dev(pdev) {
+ ent = pci_match_id(pci_tbl, pdev);
+ if (ent)
+ goto found;
+ }
+ /* Device not found. */
+ goto out;
+
+found:
+ rng_base = pci_resource_start(pdev, 0);
+ if (rng_base == 0)
+ goto out;
+ err = -ENOMEM;
+ mem = ioremap(rng_base, 0x58);
+ if (!mem)
+ goto out;
+ geode_rng.priv = (unsigned long)mem;
+
+ printk(KERN_INFO "AMD Geode RNG detected\n");
+ err = hwrng_register(&geode_rng);
+ if (err) {
+ printk(KERN_ERR PFX "RNG registering failed (%d)\n",
+ err);
+ goto out;
+ }
+out:
+ return err;
+}
+
+static void __exit mod_exit(void)
+{
+ void __iomem *mem = (void __iomem *)geode_rng.priv;
+
+ hwrng_unregister(&geode_rng);
+ iounmap(mem);
+}
+
+subsys_initcall(mod_init);
+module_exit(mod_exit);
+
+MODULE_DESCRIPTION("H/W RNG driver for AMD Geode LX CPUs");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/intel-rng.c b/drivers/char/hw_random/intel-rng.c
new file mode 100644
index 00000000000..6594bd5645f
--- /dev/null
+++ b/drivers/char/hw_random/intel-rng.c
@@ -0,0 +1,189 @@
+/*
+ * RNG driver for Intel RNGs
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * with the majority of the code coming from:
+ *
+ * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
+ * (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for the AMD 768 Random Number Generator (RNG)
+ * (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for Intel i810 Random Number Generator (RNG)
+ * Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/hw_random.h>
+#include <asm/io.h>
+
+
+#define PFX KBUILD_MODNAME ": "
+
+/*
+ * RNG registers
+ */
+#define INTEL_RNG_HW_STATUS 0
+#define INTEL_RNG_PRESENT 0x40
+#define INTEL_RNG_ENABLED 0x01
+#define INTEL_RNG_STATUS 1
+#define INTEL_RNG_DATA_PRESENT 0x01
+#define INTEL_RNG_DATA 2
+
+/*
+ * Magic address at which Intel PCI bridges locate the RNG
+ */
+#define INTEL_RNG_ADDR 0xFFBC015F
+#define INTEL_RNG_ADDR_LEN 3
+
+/*
+ * Data for PCI driver interface
+ *
+ * This data only exists for exporting the supported
+ * PCI ids via MODULE_DEVICE_TABLE. We do not actually
+ * register a pci_driver, because someone else might one day
+ * want to register another driver on the same PCI id.
+ */
+static const struct pci_device_id pci_tbl[] = {
+ { 0x8086, 0x2418, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x8086, 0x2428, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x8086, 0x2430, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x8086, 0x2448, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x8086, 0x244e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0x8086, 0x245e, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },
+ { 0, }, /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, pci_tbl);
+
+
+static inline u8 hwstatus_get(void __iomem *mem)
+{
+ return readb(mem + INTEL_RNG_HW_STATUS);
+}
+
+static inline u8 hwstatus_set(void __iomem *mem,
+ u8 hw_status)
+{
+ writeb(hw_status, mem + INTEL_RNG_HW_STATUS);
+ return hwstatus_get(mem);
+}
+
+static int intel_rng_data_present(struct hwrng *rng)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+
+ return !!(readb(mem + INTEL_RNG_STATUS) & INTEL_RNG_DATA_PRESENT);
+}
+
+static int intel_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+
+ *data = readb(mem + INTEL_RNG_DATA);
+
+ return 1;
+}
+
+static int intel_rng_init(struct hwrng *rng)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+ u8 hw_status;
+ int err = -EIO;
+
+ hw_status = hwstatus_get(mem);
+ /* turn RNG h/w on, if it's off */
+ if ((hw_status & INTEL_RNG_ENABLED) == 0)
+ hw_status = hwstatus_set(mem, hw_status | INTEL_RNG_ENABLED);
+ if ((hw_status & INTEL_RNG_ENABLED) == 0) {
+ printk(KERN_ERR PFX "cannot enable RNG, aborting\n");
+ goto out;
+ }
+ err = 0;
+out:
+ return err;
+}
+
+static void intel_rng_cleanup(struct hwrng *rng)
+{
+ void __iomem *mem = (void __iomem *)rng->priv;
+ u8 hw_status;
+
+ hw_status = hwstatus_get(mem);
+ if (hw_status & INTEL_RNG_ENABLED)
+ hwstatus_set(mem, hw_status & ~INTEL_RNG_ENABLED);
+ else
+ printk(KERN_WARNING PFX "unusual: RNG already disabled\n");
+}
+
+
+static struct hwrng intel_rng = {
+ .name = "intel",
+ .init = intel_rng_init,
+ .cleanup = intel_rng_cleanup,
+ .data_present = intel_rng_data_present,
+ .data_read = intel_rng_data_read,
+};
+
+
+static int __init mod_init(void)
+{
+ int err = -ENODEV;
+ void __iomem *mem;
+ u8 hw_status;
+
+ if (!pci_dev_present(pci_tbl))
+ goto out; /* Device not found. */
+
+ err = -ENOMEM;
+ mem = ioremap(INTEL_RNG_ADDR, INTEL_RNG_ADDR_LEN);
+ if (!mem)
+ goto out;
+ intel_rng.priv = (unsigned long)mem;
+
+ /* Check for Intel 82802 */
+ err = -ENODEV;
+ hw_status = hwstatus_get(mem);
+ if ((hw_status & INTEL_RNG_PRESENT) == 0)
+ goto err_unmap;
+
+ printk(KERN_INFO "Intel 82802 RNG detected\n");
+ err = hwrng_register(&intel_rng);
+ if (err) {
+ printk(KERN_ERR PFX "RNG registering failed (%d)\n",
+ err);
+ goto out;
+ }
+out:
+ return err;
+
+err_unmap:
+ iounmap(mem);
+ goto out;
+}
+
+static void __exit mod_exit(void)
+{
+ void __iomem *mem = (void __iomem *)intel_rng.priv;
+
+ hwrng_unregister(&intel_rng);
+ iounmap(mem);
+}
+
+subsys_initcall(mod_init);
+module_exit(mod_exit);
+
+MODULE_DESCRIPTION("H/W RNG driver for Intel chipsets");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/ixp4xx-rng.c b/drivers/char/hw_random/ixp4xx-rng.c
new file mode 100644
index 00000000000..ef71022423c
--- /dev/null
+++ b/drivers/char/hw_random/ixp4xx-rng.c
@@ -0,0 +1,73 @@
+/*
+ * drivers/char/rng/ixp4xx-rng.c
+ *
+ * RNG driver for Intel IXP4xx family of NPUs
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Fixes by Michael Buesch
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/bitops.h>
+#include <linux/hw_random.h>
+
+#include <asm/io.h>
+#include <asm/hardware.h>
+
+
+static int ixp4xx_rng_data_read(struct hwrng *rng, u32 *buffer)
+{
+ void __iomem * rng_base = (void __iomem *)rng->priv;
+
+ *buffer = __raw_readl(rng_base);
+
+ return 4;
+}
+
+static struct hwrng ixp4xx_rng_ops = {
+ .name = "ixp4xx",
+ .data_read = ixp4xx_rng_data_read,
+};
+
+static int __init ixp4xx_rng_init(void)
+{
+ void __iomem * rng_base;
+ int err;
+
+ rng_base = ioremap(0x70002100, 4);
+ if (!rng_base)
+ return -ENOMEM;
+ ixp4xx_rng_ops.priv = (unsigned long)rng_base;
+ err = hwrng_register(&ixp4xx_rng_ops);
+ if (err)
+ iounmap(rng_base);
+
+ return err;
+}
+
+static void __exit ixp4xx_rng_exit(void)
+{
+ void __iomem * rng_base = (void __iomem *)ixp4xx_rng_ops.priv;
+
+ hwrng_unregister(&ixp4xx_rng_ops);
+ iounmap(rng_base);
+}
+
+subsys_initcall(ixp4xx_rng_init);
+module_exit(ixp4xx_rng_exit);
+
+MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
+MODULE_DESCRIPTION("H/W Random Number Generator (RNG) driver for IXP4xx");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
new file mode 100644
index 00000000000..819516b35a7
--- /dev/null
+++ b/drivers/char/hw_random/omap-rng.c
@@ -0,0 +1,208 @@
+/*
+ * driver/char/hw_random/omap-rng.c
+ *
+ * RNG driver for TI OMAP CPU family
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Mostly based on original driver:
+ *
+ * Copyright (C) 2005 Nokia Corporation
+ * Author: Juha Yrj��<juha.yrjola@nokia.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * TODO:
+ *
+ * - Make status updated be interrupt driven so we don't poll
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/random.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/hw_random.h>
+
+#include <asm/io.h>
+#include <asm/hardware/clock.h>
+
+#define RNG_OUT_REG 0x00 /* Output register */
+#define RNG_STAT_REG 0x04 /* Status register
+ [0] = STAT_BUSY */
+#define RNG_ALARM_REG 0x24 /* Alarm register
+ [7:0] = ALARM_COUNTER */
+#define RNG_CONFIG_REG 0x28 /* Configuration register
+ [11:6] = RESET_COUNT
+ [5:3] = RING2_DELAY
+ [2:0] = RING1_DELAY */
+#define RNG_REV_REG 0x3c /* Revision register
+ [7:0] = REV_NB */
+#define RNG_MASK_REG 0x40 /* Mask and reset register
+ [2] = IT_EN
+ [1] = SOFTRESET
+ [0] = AUTOIDLE */
+#define RNG_SYSSTATUS 0x44 /* System status
+ [0] = RESETDONE */
+
+static void __iomem *rng_base;
+static struct clk *rng_ick;
+static struct device *rng_dev;
+
+static u32 omap_rng_read_reg(int reg)
+{
+ return __raw_readl(rng_base + reg);
+}
+
+static void omap_rng_write_reg(int reg, u32 val)
+{
+ __raw_writel(val, rng_base + reg);
+}
+
+/* REVISIT: Does the status bit really work on 16xx? */
+static int omap_rng_data_present(struct hwrng *rng)
+{
+ return omap_rng_read_reg(RNG_STAT_REG) ? 0 : 1;
+}
+
+static int omap_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ *data = omap_rng_read_reg(RNG_OUT_REG);
+
+ return 4;
+}
+
+static struct hwrng omap_rng_ops = {
+ .name = "omap",
+ .data_present = omap_rng_data_present,
+ .data_read = omap_rng_data_read,
+};
+
+static int __init omap_rng_probe(struct device *dev)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct resource *res, *mem;
+ int ret;
+
+ /*
+ * A bit ugly, and it will never actually happen but there can
+ * be only one RNG and this catches any bork
+ */
+ BUG_ON(rng_dev);
+
+ if (cpu_is_omap24xx()) {
+ rng_ick = clk_get(NULL, "rng_ick");
+ if (IS_ERR(rng_ick)) {
+ dev_err(dev, "Could not get rng_ick\n");
+ ret = PTR_ERR(rng_ick);
+ return ret;
+ }
+ else {
+ clk_use(rng_ick);
+ }
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ if (!res)
+ return -ENOENT;
+
+ mem = request_mem_region(res->start, res->end - res->start + 1,
+ pdev->name);
+ if (mem == NULL)
+ return -EBUSY;
+
+ dev_set_drvdata(dev, mem);
+ rng_base = (u32 __iomem *)io_p2v(res->start);
+
+ ret = hwrng_register(&omap_rng_ops);
+ if (ret) {
+ release_resource(mem);
+ rng_base = NULL;
+ return ret;
+ }
+
+ dev_info(dev, "OMAP Random Number Generator ver. %02x\n",
+ omap_rng_read_reg(RNG_REV_REG));
+ omap_rng_write_reg(RNG_MASK_REG, 0x1);
+
+ rng_dev = dev;
+
+ return 0;
+}
+
+static int __exit omap_rng_remove(struct device *dev)
+{
+ struct resource *mem = dev_get_drvdata(dev);
+
+ hwrng_unregister(&omap_rng_ops);
+
+ omap_rng_write_reg(RNG_MASK_REG, 0x0);
+
+ if (cpu_is_omap24xx()) {
+ clk_unuse(rng_ick);
+ clk_put(rng_ick);
+ }
+
+ release_resource(mem);
+ rng_base = NULL;
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int omap_rng_suspend(struct device *dev, pm_message_t message, u32 level)
+{
+ omap_rng_write_reg(RNG_MASK_REG, 0x0);
+
+ return 0;
+}
+
+static int omap_rng_resume(struct device *dev, pm_message_t message, u32 level)
+{
+ omap_rng_write_reg(RNG_MASK_REG, 0x1);
+
+ return 1;
+}
+
+#else
+
+#define omap_rng_suspend NULL
+#define omap_rng_resume NULL
+
+#endif
+
+
+static struct device_driver omap_rng_driver = {
+ .name = "omap_rng",
+ .bus = &platform_bus_type,
+ .probe = omap_rng_probe,
+ .remove = __exit_p(omap_rng_remove),
+ .suspend = omap_rng_suspend,
+ .resume = omap_rng_resume
+};
+
+static int __init omap_rng_init(void)
+{
+ if (!cpu_is_omap16xx() && !cpu_is_omap24xx())
+ return -ENODEV;
+
+ return driver_register(&omap_rng_driver);
+}
+
+static void __exit omap_rng_exit(void)
+{
+ driver_unregister(&omap_rng_driver);
+}
+
+module_init(omap_rng_init);
+module_exit(omap_rng_exit);
+
+MODULE_AUTHOR("Deepak Saxena (and others)");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
new file mode 100644
index 00000000000..0e786b617bb
--- /dev/null
+++ b/drivers/char/hw_random/via-rng.c
@@ -0,0 +1,183 @@
+/*
+ * RNG driver for VIA RNGs
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * with the majority of the code coming from:
+ *
+ * Hardware driver for the Intel/AMD/VIA Random Number Generators (RNG)
+ * (c) Copyright 2003 Red Hat Inc <jgarzik@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for the AMD 768 Random Number Generator (RNG)
+ * (c) Copyright 2001 Red Hat Inc <alan@redhat.com>
+ *
+ * derived from
+ *
+ * Hardware driver for Intel i810 Random Number Generator (RNG)
+ * Copyright 2000,2001 Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2000,2001 Philipp Rumpf <prumpf@mandrakesoft.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/hw_random.h>
+#include <asm/io.h>
+#include <asm/msr.h>
+#include <asm/cpufeature.h>
+
+
+#define PFX KBUILD_MODNAME ": "
+
+
+enum {
+ VIA_STRFILT_CNT_SHIFT = 16,
+ VIA_STRFILT_FAIL = (1 << 15),
+ VIA_STRFILT_ENABLE = (1 << 14),
+ VIA_RAWBITS_ENABLE = (1 << 13),
+ VIA_RNG_ENABLE = (1 << 6),
+ VIA_XSTORE_CNT_MASK = 0x0F,
+
+ VIA_RNG_CHUNK_8 = 0x00, /* 64 rand bits, 64 stored bits */
+ VIA_RNG_CHUNK_4 = 0x01, /* 32 rand bits, 32 stored bits */
+ VIA_RNG_CHUNK_4_MASK = 0xFFFFFFFF,
+ VIA_RNG_CHUNK_2 = 0x02, /* 16 rand bits, 32 stored bits */
+ VIA_RNG_CHUNK_2_MASK = 0xFFFF,
+ VIA_RNG_CHUNK_1 = 0x03, /* 8 rand bits, 32 stored bits */
+ VIA_RNG_CHUNK_1_MASK = 0xFF,
+};
+
+/*
+ * Investigate using the 'rep' prefix to obtain 32 bits of random data
+ * in one insn. The upside is potentially better performance. The
+ * downside is that the instruction becomes no longer atomic. Due to
+ * this, just like familiar issues with /dev/random itself, the worst
+ * case of a 'rep xstore' could potentially pause a cpu for an
+ * unreasonably long time. In practice, this condition would likely
+ * only occur when the hardware is failing. (or so we hope :))
+ *
+ * Another possible performance boost may come from simply buffering
+ * until we have 4 bytes, thus returning a u32 at a time,
+ * instead of the current u8-at-a-time.
+ */
+
+static inline u32 xstore(u32 *addr, u32 edx_in)
+{
+ u32 eax_out;
+
+ asm(".byte 0x0F,0xA7,0xC0 /* xstore %%edi (addr=%0) */"
+ :"=m"(*addr), "=a"(eax_out)
+ :"D"(addr), "d"(edx_in));
+
+ return eax_out;
+}
+
+static int via_rng_data_present(struct hwrng *rng)
+{
+ u32 bytes_out;
+ u32 *via_rng_datum = (u32 *)(&rng->priv);
+
+ /* We choose the recommended 1-byte-per-instruction RNG rate,
+ * for greater randomness at the expense of speed. Larger
+ * values 2, 4, or 8 bytes-per-instruction yield greater
+ * speed at lesser randomness.
+ *
+ * If you change this to another VIA_CHUNK_n, you must also
+ * change the ->n_bytes values in rng_vendor_ops[] tables.
+ * VIA_CHUNK_8 requires further code changes.
+ *
+ * A copy of MSR_VIA_RNG is placed in eax_out when xstore
+ * completes.
+ */
+
+ *via_rng_datum = 0; /* paranoia, not really necessary */
+ bytes_out = xstore(via_rng_datum, VIA_RNG_CHUNK_1);
+ bytes_out &= VIA_XSTORE_CNT_MASK;
+ if (bytes_out == 0)
+ return 0;
+ return 1;
+}
+
+static int via_rng_data_read(struct hwrng *rng, u32 *data)
+{
+ u32 via_rng_datum = (u32)rng->priv;
+
+ *data = via_rng_datum;
+
+ return 1;
+}
+
+static int via_rng_init(struct hwrng *rng)
+{
+ u32 lo, hi, old_lo;
+
+ /* Control the RNG via MSR. Tread lightly and pay very close
+ * close attention to values written, as the reserved fields
+ * are documented to be "undefined and unpredictable"; but it
+ * does not say to write them as zero, so I make a guess that
+ * we restore the values we find in the register.
+ */
+ rdmsr(MSR_VIA_RNG, lo, hi);
+
+ old_lo = lo;
+ lo &= ~(0x7f << VIA_STRFILT_CNT_SHIFT);
+ lo &= ~VIA_XSTORE_CNT_MASK;
+ lo &= ~(VIA_STRFILT_ENABLE | VIA_STRFILT_FAIL | VIA_RAWBITS_ENABLE);
+ lo |= VIA_RNG_ENABLE;
+
+ if (lo != old_lo)
+ wrmsr(MSR_VIA_RNG, lo, hi);
+
+ /* perhaps-unnecessary sanity check; remove after testing if
+ unneeded */
+ rdmsr(MSR_VIA_RNG, lo, hi);
+ if ((lo & VIA_RNG_ENABLE) == 0) {
+ printk(KERN_ERR PFX "cannot enable VIA C3 RNG, aborting\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+
+static struct hwrng via_rng = {
+ .name = "via",
+ .init = via_rng_init,
+ .data_present = via_rng_data_present,
+ .data_read = via_rng_data_read,
+};
+
+
+static int __init mod_init(void)
+{
+ int err;
+
+ if (!cpu_has_xstore)
+ return -ENODEV;
+ printk(KERN_INFO "VIA RNG detected\n");
+ err = hwrng_register(&via_rng);
+ if (err) {
+ printk(KERN_ERR PFX "RNG registering failed (%d)\n",
+ err);
+ goto out;
+ }
+out:
+ return err;
+}
+
+static void __exit mod_exit(void)
+{
+ hwrng_unregister(&via_rng);
+}
+
+subsys_initcall(mod_init);
+module_exit(mod_exit);
+
+MODULE_DESCRIPTION("H/W RNG driver for VIA chipsets");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 9f2f8fdec69..23028559dbc 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -936,11 +936,8 @@ int ipmi_set_gets_events(ipmi_user_t user, int val)
if (val) {
/* Deliver any queued events. */
- list_for_each_entry_safe(msg, msg2, &intf->waiting_events,
- link) {
- list_del(&msg->link);
- list_add_tail(&msg->link, &msgs);
- }
+ list_for_each_entry_safe(msg, msg2, &intf->waiting_events, link)
+ list_move_tail(&msg->link, &msgs);
intf->waiting_events_count = 0;
}
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 6cb85dcbbc8..4bb3d227260 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -151,6 +151,7 @@ unsigned char kbd_sysrq_xlate[KEY_MAX + 1] =
"230\177\000\000\213\214\000\000\000\000\000\000\000\000\000\000" /* 0x50 - 0x5f */
"\r\000/"; /* 0x60 - 0x6f */
static int sysrq_down;
+static int sysrq_alt_use;
#endif
static int sysrq_alt;
@@ -1145,7 +1146,7 @@ static void kbd_keycode(unsigned int keycode, int down,
kbd = kbd_table + fg_console;
if (keycode == KEY_LEFTALT || keycode == KEY_RIGHTALT)
- sysrq_alt = down;
+ sysrq_alt = down ? keycode : 0;
#ifdef CONFIG_SPARC
if (keycode == KEY_STOP)
sparc_l1_a_state = down;
@@ -1165,9 +1166,14 @@ static void kbd_keycode(unsigned int keycode, int down,
#ifdef CONFIG_MAGIC_SYSRQ /* Handle the SysRq Hack */
if (keycode == KEY_SYSRQ && (sysrq_down || (down == 1 && sysrq_alt))) {
- sysrq_down = down;
+ if (!sysrq_down) {
+ sysrq_down = down;
+ sysrq_alt_use = sysrq_alt;
+ }
return;
}
+ if (sysrq_down && !down && keycode == sysrq_alt_use)
+ sysrq_down = 0;
if (sysrq_down && down && !rep) {
handle_sysrq(kbd_sysrq_xlate[keycode], regs, tty);
return;
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 6c94879e0b9..714d95ff2f1 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -98,7 +98,22 @@
#include <asm/system.h>
#include <asm/uaccess.h>
+#define MAX_NR_CON_DRIVER 16
+#define CON_DRIVER_FLAG_MODULE 1
+#define CON_DRIVER_FLAG_INIT 2
+
+struct con_driver {
+ const struct consw *con;
+ const char *desc;
+ struct class_device *class_dev;
+ int node;
+ int first;
+ int last;
+ int flag;
+};
+
+static struct con_driver registered_con_driver[MAX_NR_CON_DRIVER];
const struct consw *conswitchp;
/* A bitmap for codes <32. A bit of 1 indicates that the code
@@ -2557,7 +2572,7 @@ static int __init con_init(void)
{
const char *display_desc = NULL;
struct vc_data *vc;
- unsigned int currcons = 0;
+ unsigned int currcons = 0, i;
acquire_console_sem();
@@ -2569,6 +2584,22 @@ static int __init con_init(void)
return 0;
}
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ struct con_driver *con_driver = &registered_con_driver[i];
+
+ if (con_driver->con == NULL) {
+ con_driver->con = conswitchp;
+ con_driver->desc = display_desc;
+ con_driver->flag = CON_DRIVER_FLAG_INIT;
+ con_driver->first = 0;
+ con_driver->last = MAX_NR_CONSOLES - 1;
+ break;
+ }
+ }
+
+ for (i = 0; i < MAX_NR_CONSOLES; i++)
+ con_driver_map[i] = conswitchp;
+
init_timer(&console_timer);
console_timer.function = blank_screen_t;
if (blankinterval) {
@@ -2656,38 +2687,53 @@ int __init vty_init(void)
}
#ifndef VT_SINGLE_DRIVER
+#include <linux/device.h>
-/*
- * If we support more console drivers, this function is used
- * when a driver wants to take over some existing consoles
- * and become default driver for newly opened ones.
- */
+static struct class *vtconsole_class;
-int take_over_console(const struct consw *csw, int first, int last, int deflt)
+static int bind_con_driver(const struct consw *csw, int first, int last,
+ int deflt)
{
- int i, j = -1;
- const char *desc;
- struct module *owner;
+ struct module *owner = csw->owner;
+ const char *desc = NULL;
+ struct con_driver *con_driver;
+ int i, j = -1, k = -1, retval = -ENODEV;
- owner = csw->owner;
if (!try_module_get(owner))
return -ENODEV;
acquire_console_sem();
- desc = csw->con_startup();
- if (!desc) {
- release_console_sem();
- module_put(owner);
- return -ENODEV;
+ /* check if driver is registered */
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ con_driver = &registered_con_driver[i];
+
+ if (con_driver->con == csw) {
+ desc = con_driver->desc;
+ retval = 0;
+ break;
+ }
+ }
+
+ if (retval)
+ goto err;
+
+ if (!(con_driver->flag & CON_DRIVER_FLAG_INIT)) {
+ csw->con_startup();
+ con_driver->flag |= CON_DRIVER_FLAG_INIT;
}
+
if (deflt) {
if (conswitchp)
module_put(conswitchp->owner);
+
__module_get(owner);
conswitchp = csw;
}
+ first = max(first, con_driver->first);
+ last = min(last, con_driver->last);
+
for (i = first; i <= last; i++) {
int old_was_color;
struct vc_data *vc = vc_cons[i].d;
@@ -2701,15 +2747,17 @@ int take_over_console(const struct consw *csw, int first, int last, int deflt)
continue;
j = i;
- if (CON_IS_VISIBLE(vc))
+
+ if (CON_IS_VISIBLE(vc)) {
+ k = i;
save_screen(vc);
+ }
+
old_was_color = vc->vc_can_do_color;
vc->vc_sw->con_deinit(vc);
vc->vc_origin = (unsigned long)vc->vc_screenbuf;
- vc->vc_visible_origin = vc->vc_origin;
- vc->vc_scr_end = vc->vc_origin + vc->vc_screenbuf_size;
- vc->vc_pos = vc->vc_origin + vc->vc_size_row * vc->vc_y + 2 * vc->vc_x;
visual_init(vc, i, 0);
+ set_origin(vc);
update_attr(vc);
/* If the console changed between mono <-> color, then
@@ -2718,36 +2766,506 @@ int take_over_console(const struct consw *csw, int first, int last, int deflt)
*/
if (old_was_color != vc->vc_can_do_color)
clear_buffer_attributes(vc);
-
- if (CON_IS_VISIBLE(vc))
- update_screen(vc);
}
+
printk("Console: switching ");
if (!deflt)
printk("consoles %d-%d ", first+1, last+1);
- if (j >= 0)
+ if (j >= 0) {
+ struct vc_data *vc = vc_cons[j].d;
+
printk("to %s %s %dx%d\n",
- vc_cons[j].d->vc_can_do_color ? "colour" : "mono",
- desc, vc_cons[j].d->vc_cols, vc_cons[j].d->vc_rows);
- else
+ vc->vc_can_do_color ? "colour" : "mono",
+ desc, vc->vc_cols, vc->vc_rows);
+
+ if (k >= 0) {
+ vc = vc_cons[k].d;
+ update_screen(vc);
+ }
+ } else
printk("to %s\n", desc);
+ retval = 0;
+err:
release_console_sem();
+ module_put(owner);
+ return retval;
+};
+
+#ifdef CONFIG_VT_HW_CONSOLE_BINDING
+static int con_is_graphics(const struct consw *csw, int first, int last)
+{
+ int i, retval = 0;
+
+ for (i = first; i <= last; i++) {
+ struct vc_data *vc = vc_cons[i].d;
+
+ if (vc && vc->vc_mode == KD_GRAPHICS) {
+ retval = 1;
+ break;
+ }
+ }
+
+ return retval;
+}
+
+static int unbind_con_driver(const struct consw *csw, int first, int last,
+ int deflt)
+{
+ struct module *owner = csw->owner;
+ const struct consw *defcsw = NULL;
+ struct con_driver *con_driver = NULL, *con_back = NULL;
+ int i, retval = -ENODEV;
+
+ if (!try_module_get(owner))
+ return -ENODEV;
+
+ acquire_console_sem();
+
+ /* check if driver is registered and if it is unbindable */
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ con_driver = &registered_con_driver[i];
+
+ if (con_driver->con == csw &&
+ con_driver->flag & CON_DRIVER_FLAG_MODULE) {
+ retval = 0;
+ break;
+ }
+ }
+
+ if (retval) {
+ release_console_sem();
+ goto err;
+ }
+
+ retval = -ENODEV;
+
+ /* check if backup driver exists */
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ con_back = &registered_con_driver[i];
+
+ if (con_back->con &&
+ !(con_back->flag & CON_DRIVER_FLAG_MODULE)) {
+ defcsw = con_back->con;
+ retval = 0;
+ break;
+ }
+ }
+
+ if (retval) {
+ release_console_sem();
+ goto err;
+ }
+
+ if (!con_is_bound(csw)) {
+ release_console_sem();
+ goto err;
+ }
+
+ first = max(first, con_driver->first);
+ last = min(last, con_driver->last);
+
+ for (i = first; i <= last; i++) {
+ if (con_driver_map[i] == csw) {
+ module_put(csw->owner);
+ con_driver_map[i] = NULL;
+ }
+ }
+
+ if (!con_is_bound(defcsw)) {
+ const struct consw *defconsw = conswitchp;
+
+ defcsw->con_startup();
+ con_back->flag |= CON_DRIVER_FLAG_INIT;
+ /*
+ * vgacon may change the default driver to point
+ * to dummycon, we restore it here...
+ */
+ conswitchp = defconsw;
+ }
+
+ if (!con_is_bound(csw))
+ con_driver->flag &= ~CON_DRIVER_FLAG_INIT;
+ release_console_sem();
+ /* ignore return value, binding should not fail */
+ bind_con_driver(defcsw, first, last, deflt);
+err:
module_put(owner);
+ return retval;
+
+}
+
+static int vt_bind(struct con_driver *con)
+{
+ const struct consw *defcsw = NULL, *csw = NULL;
+ int i, more = 1, first = -1, last = -1, deflt = 0;
+
+ if (!con->con || !(con->flag & CON_DRIVER_FLAG_MODULE) ||
+ con_is_graphics(con->con, con->first, con->last))
+ goto err;
+
+ csw = con->con;
+
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ struct con_driver *con = &registered_con_driver[i];
+
+ if (con->con && !(con->flag & CON_DRIVER_FLAG_MODULE)) {
+ defcsw = con->con;
+ break;
+ }
+ }
+
+ if (!defcsw)
+ goto err;
+
+ while (more) {
+ more = 0;
+
+ for (i = con->first; i <= con->last; i++) {
+ if (con_driver_map[i] == defcsw) {
+ if (first == -1)
+ first = i;
+ last = i;
+ more = 1;
+ } else if (first != -1)
+ break;
+ }
+
+ if (first == 0 && last == MAX_NR_CONSOLES -1)
+ deflt = 1;
+
+ if (first != -1)
+ bind_con_driver(csw, first, last, deflt);
+
+ first = -1;
+ last = -1;
+ deflt = 0;
+ }
+
+err:
return 0;
}
-void give_up_console(const struct consw *csw)
+static int vt_unbind(struct con_driver *con)
+{
+ const struct consw *csw = NULL;
+ int i, more = 1, first = -1, last = -1, deflt = 0;
+
+ if (!con->con || !(con->flag & CON_DRIVER_FLAG_MODULE) ||
+ con_is_graphics(con->con, con->first, con->last))
+ goto err;
+
+ csw = con->con;
+
+ while (more) {
+ more = 0;
+
+ for (i = con->first; i <= con->last; i++) {
+ if (con_driver_map[i] == csw) {
+ if (first == -1)
+ first = i;
+ last = i;
+ more = 1;
+ } else if (first != -1)
+ break;
+ }
+
+ if (first == 0 && last == MAX_NR_CONSOLES -1)
+ deflt = 1;
+
+ if (first != -1)
+ unbind_con_driver(csw, first, last, deflt);
+
+ first = -1;
+ last = -1;
+ deflt = 0;
+ }
+
+err:
+ return 0;
+}
+#else
+static inline int vt_bind(struct con_driver *con)
+{
+ return 0;
+}
+static inline int vt_unbind(struct con_driver *con)
+{
+ return 0;
+}
+#endif /* CONFIG_VT_HW_CONSOLE_BINDING */
+
+static ssize_t store_bind(struct class_device *class_device,
+ const char *buf, size_t count)
+{
+ struct con_driver *con = class_get_devdata(class_device);
+ int bind = simple_strtoul(buf, NULL, 0);
+
+ if (bind)
+ vt_bind(con);
+ else
+ vt_unbind(con);
+
+ return count;
+}
+
+static ssize_t show_bind(struct class_device *class_device, char *buf)
+{
+ struct con_driver *con = class_get_devdata(class_device);
+ int bind = con_is_bound(con->con);
+
+ return snprintf(buf, PAGE_SIZE, "%i\n", bind);
+}
+
+static ssize_t show_name(struct class_device *class_device, char *buf)
+{
+ struct con_driver *con = class_get_devdata(class_device);
+
+ return snprintf(buf, PAGE_SIZE, "%s %s\n",
+ (con->flag & CON_DRIVER_FLAG_MODULE) ? "(M)" : "(S)",
+ con->desc);
+
+}
+
+static struct class_device_attribute class_device_attrs[] = {
+ __ATTR(bind, S_IRUGO|S_IWUSR, show_bind, store_bind),
+ __ATTR(name, S_IRUGO, show_name, NULL),
+};
+
+static int vtconsole_init_class_device(struct con_driver *con)
+{
+ int i;
+
+ class_set_devdata(con->class_dev, con);
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
+ class_device_create_file(con->class_dev,
+ &class_device_attrs[i]);
+
+ return 0;
+}
+
+static void vtconsole_deinit_class_device(struct con_driver *con)
{
int i;
- for(i = 0; i < MAX_NR_CONSOLES; i++)
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
+ class_device_remove_file(con->class_dev,
+ &class_device_attrs[i]);
+}
+
+/**
+ * con_is_bound - checks if driver is bound to the console
+ * @csw: console driver
+ *
+ * RETURNS: zero if unbound, nonzero if bound
+ *
+ * Drivers can call this and if zero, they should release
+ * all resources allocated on con_startup()
+ */
+int con_is_bound(const struct consw *csw)
+{
+ int i, bound = 0;
+
+ for (i = 0; i < MAX_NR_CONSOLES; i++) {
if (con_driver_map[i] == csw) {
- module_put(csw->owner);
- con_driver_map[i] = NULL;
+ bound = 1;
+ break;
+ }
+ }
+
+ return bound;
+}
+EXPORT_SYMBOL(con_is_bound);
+
+/**
+ * register_con_driver - register console driver to console layer
+ * @csw: console driver
+ * @first: the first console to take over, minimum value is 0
+ * @last: the last console to take over, maximum value is MAX_NR_CONSOLES -1
+ *
+ * DESCRIPTION: This function registers a console driver which can later
+ * bind to a range of consoles specified by @first and @last. It will
+ * also initialize the console driver by calling con_startup().
+ */
+int register_con_driver(const struct consw *csw, int first, int last)
+{
+ struct module *owner = csw->owner;
+ struct con_driver *con_driver;
+ const char *desc;
+ int i, retval = 0;
+
+ if (!try_module_get(owner))
+ return -ENODEV;
+
+ acquire_console_sem();
+
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ con_driver = &registered_con_driver[i];
+
+ /* already registered */
+ if (con_driver->con == csw)
+ retval = -EINVAL;
+ }
+
+ if (retval)
+ goto err;
+
+ desc = csw->con_startup();
+
+ if (!desc)
+ goto err;
+
+ retval = -EINVAL;
+
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ con_driver = &registered_con_driver[i];
+
+ if (con_driver->con == NULL) {
+ con_driver->con = csw;
+ con_driver->desc = desc;
+ con_driver->node = i;
+ con_driver->flag = CON_DRIVER_FLAG_MODULE |
+ CON_DRIVER_FLAG_INIT;
+ con_driver->first = first;
+ con_driver->last = last;
+ retval = 0;
+ break;
+ }
+ }
+
+ if (retval)
+ goto err;
+
+ con_driver->class_dev = class_device_create(vtconsole_class, NULL,
+ MKDEV(0, con_driver->node),
+ NULL, "vtcon%i",
+ con_driver->node);
+
+ if (IS_ERR(con_driver->class_dev)) {
+ printk(KERN_WARNING "Unable to create class_device for %s; "
+ "errno = %ld\n", con_driver->desc,
+ PTR_ERR(con_driver->class_dev));
+ con_driver->class_dev = NULL;
+ } else {
+ vtconsole_init_class_device(con_driver);
+ }
+err:
+ release_console_sem();
+ module_put(owner);
+ return retval;
+}
+EXPORT_SYMBOL(register_con_driver);
+
+/**
+ * unregister_con_driver - unregister console driver from console layer
+ * @csw: console driver
+ *
+ * DESCRIPTION: All drivers that registers to the console layer must
+ * call this function upon exit, or if the console driver is in a state
+ * where it won't be able to handle console services, such as the
+ * framebuffer console without loaded framebuffer drivers.
+ *
+ * The driver must unbind first prior to unregistration.
+ */
+int unregister_con_driver(const struct consw *csw)
+{
+ int i, retval = -ENODEV;
+
+ acquire_console_sem();
+
+ /* cannot unregister a bound driver */
+ if (con_is_bound(csw))
+ goto err;
+
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ struct con_driver *con_driver = &registered_con_driver[i];
+
+ if (con_driver->con == csw &&
+ con_driver->flag & CON_DRIVER_FLAG_MODULE) {
+ vtconsole_deinit_class_device(con_driver);
+ class_device_destroy(vtconsole_class,
+ MKDEV(0, con_driver->node));
+ con_driver->con = NULL;
+ con_driver->desc = NULL;
+ con_driver->class_dev = NULL;
+ con_driver->node = 0;
+ con_driver->flag = 0;
+ con_driver->first = 0;
+ con_driver->last = 0;
+ retval = 0;
+ break;
+ }
+ }
+err:
+ release_console_sem();
+ return retval;
+}
+EXPORT_SYMBOL(unregister_con_driver);
+
+/*
+ * If we support more console drivers, this function is used
+ * when a driver wants to take over some existing consoles
+ * and become default driver for newly opened ones.
+ *
+ * take_over_console is basically a register followed by unbind
+ */
+int take_over_console(const struct consw *csw, int first, int last, int deflt)
+{
+ int err;
+
+ err = register_con_driver(csw, first, last);
+
+ if (!err)
+ bind_con_driver(csw, first, last, deflt);
+
+ return err;
+}
+
+/*
+ * give_up_console is a wrapper to unregister_con_driver. It will only
+ * work if driver is fully unbound.
+ */
+void give_up_console(const struct consw *csw)
+{
+ unregister_con_driver(csw);
+}
+
+static int __init vtconsole_class_init(void)
+{
+ int i;
+
+ vtconsole_class = class_create(THIS_MODULE, "vtconsole");
+ if (IS_ERR(vtconsole_class)) {
+ printk(KERN_WARNING "Unable to create vt console class; "
+ "errno = %ld\n", PTR_ERR(vtconsole_class));
+ vtconsole_class = NULL;
+ }
+
+ /* Add system drivers to sysfs */
+ for (i = 0; i < MAX_NR_CON_DRIVER; i++) {
+ struct con_driver *con = &registered_con_driver[i];
+
+ if (con->con && !con->class_dev) {
+ con->class_dev =
+ class_device_create(vtconsole_class, NULL,
+ MKDEV(0, con->node), NULL,
+ "vtcon%i", con->node);
+
+ if (IS_ERR(con->class_dev)) {
+ printk(KERN_WARNING "Unable to create "
+ "class_device for %s; errno = %ld\n",
+ con->desc, PTR_ERR(con->class_dev));
+ con->class_dev = NULL;
+ } else {
+ vtconsole_init_class_device(con);
+ }
}
+ }
+
+ return 0;
}
+postcore_initcall(vtconsole_class_init);
#endif
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
new file mode 100644
index 00000000000..a5222547022
--- /dev/null
+++ b/drivers/clocksource/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_X86_CYCLONE_TIMER) += cyclone.o
+obj-$(CONFIG_X86_PM_TIMER) += acpi_pm.o
+obj-$(CONFIG_SCx200HR_TIMER) += scx200_hrt.o
diff --git a/drivers/clocksource/acpi_pm.c b/drivers/clocksource/acpi_pm.c
new file mode 100644
index 00000000000..7ad3be8c0f4
--- /dev/null
+++ b/drivers/clocksource/acpi_pm.c
@@ -0,0 +1,177 @@
+/*
+ * linux/drivers/clocksource/acpi_pm.c
+ *
+ * This file contains the ACPI PM based clocksource.
+ *
+ * This code was largely moved from the i386 timer_pm.c file
+ * which was (C) Dominik Brodowski <linux@brodo.de> 2003
+ * and contained the following comments:
+ *
+ * Driver to use the Power Management Timer (PMTMR) available in some
+ * southbridges as primary timing source for the Linux kernel.
+ *
+ * Based on parts of linux/drivers/acpi/hardware/hwtimer.c, timer_pit.c,
+ * timer_hpet.c, and on Arjan van de Ven's implementation for 2.4.
+ *
+ * This file is licensed under the GPL v2.
+ */
+
+#include <linux/clocksource.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <asm/io.h>
+
+/* Number of PMTMR ticks expected during calibration run */
+#define PMTMR_TICKS_PER_SEC 3579545
+
+/*
+ * The I/O port the PMTMR resides at.
+ * The location is detected during setup_arch(),
+ * in arch/i386/acpi/boot.c
+ */
+u32 pmtmr_ioport __read_mostly;
+
+#define ACPI_PM_MASK CLOCKSOURCE_MASK(24) /* limit it to 24 bits */
+
+static inline u32 read_pmtmr(void)
+{
+ /* mask the output to 24 bits */
+ return inl(pmtmr_ioport) & ACPI_PM_MASK;
+}
+
+static cycle_t acpi_pm_read_verified(void)
+{
+ u32 v1 = 0, v2 = 0, v3 = 0;
+
+ /*
+ * It has been reported that because of various broken
+ * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM clock
+ * source is not latched, you must read it multiple
+ * times to ensure a safe value is read:
+ */
+ do {
+ v1 = read_pmtmr();
+ v2 = read_pmtmr();
+ v3 = read_pmtmr();
+ } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+ || (v3 > v1 && v3 < v2));
+
+ return (cycle_t)v2;
+}
+
+static cycle_t acpi_pm_read(void)
+{
+ return (cycle_t)read_pmtmr();
+}
+
+static struct clocksource clocksource_acpi_pm = {
+ .name = "acpi_pm",
+ .rating = 200,
+ .read = acpi_pm_read,
+ .mask = (cycle_t)ACPI_PM_MASK,
+ .mult = 0, /*to be caluclated*/
+ .shift = 22,
+ .is_continuous = 1,
+};
+
+
+#ifdef CONFIG_PCI
+static int acpi_pm_good;
+static int __init acpi_pm_good_setup(char *__str)
+{
+ acpi_pm_good = 1;
+ return 1;
+}
+__setup("acpi_pm_good", acpi_pm_good_setup);
+
+static inline void acpi_pm_need_workaround(void)
+{
+ clocksource_acpi_pm.read = acpi_pm_read_verified;
+ clocksource_acpi_pm.rating = 110;
+}
+
+/*
+ * PIIX4 Errata:
+ *
+ * The power management timer may return improper results when read.
+ * Although the timer value settles properly after incrementing,
+ * while incrementing there is a 3 ns window every 69.8 ns where the
+ * timer value is indeterminate (a 4.2% chance that the data will be
+ * incorrect when read). As a result, the ACPI free running count up
+ * timer specification is violated due to erroneous reads.
+ */
+static void __devinit acpi_pm_check_blacklist(struct pci_dev *dev)
+{
+ u8 rev;
+
+ if (acpi_pm_good)
+ return;
+
+ pci_read_config_byte(dev, PCI_REVISION_ID, &rev);
+ /* the bug has been fixed in PIIX4M */
+ if (rev < 3) {
+ printk(KERN_WARNING "* Found PM-Timer Bug on the chipset."
+ " Due to workarounds for a bug,\n"
+ "* this clock source is slow. Consider trying"
+ " other clock sources\n");
+
+ acpi_pm_need_workaround();
+ }
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3,
+ acpi_pm_check_blacklist);
+
+static void __devinit acpi_pm_check_graylist(struct pci_dev *dev)
+{
+ if (acpi_pm_good)
+ return;
+
+ printk(KERN_WARNING "* The chipset may have PM-Timer Bug. Due to"
+ " workarounds for a bug,\n"
+ "* this clock source is slow. If you are sure your timer"
+ " does not have\n"
+ "* this bug, please use \"acpi_pm_good\" to disable the"
+ " workaround\n");
+
+ acpi_pm_need_workaround();
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_0,
+ acpi_pm_check_graylist);
+#endif
+
+
+static int __init init_acpi_pm_clocksource(void)
+{
+ u32 value1, value2;
+ unsigned int i;
+
+ if (!pmtmr_ioport)
+ return -ENODEV;
+
+ clocksource_acpi_pm.mult = clocksource_hz2mult(PMTMR_TICKS_PER_SEC,
+ clocksource_acpi_pm.shift);
+
+ /* "verify" this timing source: */
+ value1 = read_pmtmr();
+ for (i = 0; i < 10000; i++) {
+ value2 = read_pmtmr();
+ if (value2 == value1)
+ continue;
+ if (value2 > value1)
+ goto pm_good;
+ if ((value2 < value1) && ((value2) < 0xFFF))
+ goto pm_good;
+ printk(KERN_INFO "PM-Timer had inconsistent results:"
+ " 0x%#x, 0x%#x - aborting.\n", value1, value2);
+ return -EINVAL;
+ }
+ printk(KERN_INFO "PM-Timer had no reasonable result:"
+ " 0x%#x - aborting.\n", value1);
+ return -ENODEV;
+
+pm_good:
+ return clocksource_register(&clocksource_acpi_pm);
+}
+
+module_init(init_acpi_pm_clocksource);
diff --git a/drivers/clocksource/cyclone.c b/drivers/clocksource/cyclone.c
new file mode 100644
index 00000000000..bf4d3d50d1c
--- /dev/null
+++ b/drivers/clocksource/cyclone.c
@@ -0,0 +1,119 @@
+#include <linux/clocksource.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/timex.h>
+#include <linux/init.h>
+
+#include <asm/pgtable.h>
+#include <asm/io.h>
+
+#include "mach_timer.h"
+
+#define CYCLONE_CBAR_ADDR 0xFEB00CD0 /* base address ptr */
+#define CYCLONE_PMCC_OFFSET 0x51A0 /* offset to control register */
+#define CYCLONE_MPCS_OFFSET 0x51A8 /* offset to select register */
+#define CYCLONE_MPMC_OFFSET 0x51D0 /* offset to count register */
+#define CYCLONE_TIMER_FREQ 99780000 /* 100Mhz, but not really */
+#define CYCLONE_TIMER_MASK CLOCKSOURCE_MASK(32) /* 32 bit mask */
+
+int use_cyclone = 0;
+static void __iomem *cyclone_ptr;
+
+static cycle_t read_cyclone(void)
+{
+ return (cycle_t)readl(cyclone_ptr);
+}
+
+static struct clocksource clocksource_cyclone = {
+ .name = "cyclone",
+ .rating = 250,
+ .read = read_cyclone,
+ .mask = CYCLONE_TIMER_MASK,
+ .mult = 10,
+ .shift = 0,
+ .is_continuous = 1,
+};
+
+static int __init init_cyclone_clocksource(void)
+{
+ unsigned long base; /* saved value from CBAR */
+ unsigned long offset;
+ u32 __iomem* volatile cyclone_timer; /* Cyclone MPMC0 register */
+ u32 __iomem* reg;
+ int i;
+
+ /* make sure we're on a summit box: */
+ if (!use_cyclone)
+ return -ENODEV;
+
+ printk(KERN_INFO "Summit chipset: Starting Cyclone Counter.\n");
+
+ /* find base address: */
+ offset = CYCLONE_CBAR_ADDR;
+ reg = ioremap_nocache(offset, sizeof(reg));
+ if (!reg) {
+ printk(KERN_ERR "Summit chipset: Could not find valid CBAR register.\n");
+ return -ENODEV;
+ }
+ /* even on 64bit systems, this is only 32bits: */
+ base = readl(reg);
+ if (!base) {
+ printk(KERN_ERR "Summit chipset: Could not find valid CBAR value.\n");
+ return -ENODEV;
+ }
+ iounmap(reg);
+
+ /* setup PMCC: */
+ offset = base + CYCLONE_PMCC_OFFSET;
+ reg = ioremap_nocache(offset, sizeof(reg));
+ if (!reg) {
+ printk(KERN_ERR "Summit chipset: Could not find valid PMCC register.\n");
+ return -ENODEV;
+ }
+ writel(0x00000001,reg);
+ iounmap(reg);
+
+ /* setup MPCS: */
+ offset = base + CYCLONE_MPCS_OFFSET;
+ reg = ioremap_nocache(offset, sizeof(reg));
+ if (!reg) {
+ printk(KERN_ERR "Summit chipset: Could not find valid MPCS register.\n");
+ return -ENODEV;
+ }
+ writel(0x00000001,reg);
+ iounmap(reg);
+
+ /* map in cyclone_timer: */
+ offset = base + CYCLONE_MPMC_OFFSET;
+ cyclone_timer = ioremap_nocache(offset, sizeof(u64));
+ if (!cyclone_timer) {
+ printk(KERN_ERR "Summit chipset: Could not find valid MPMC register.\n");
+ return -ENODEV;
+ }
+
+ /* quick test to make sure its ticking: */
+ for (i = 0; i < 3; i++){
+ u32 old = readl(cyclone_timer);
+ int stall = 100;
+
+ while (stall--)
+ barrier();
+
+ if (readl(cyclone_timer) == old) {
+ printk(KERN_ERR "Summit chipset: Counter not counting! DISABLED\n");
+ iounmap(cyclone_timer);
+ cyclone_timer = NULL;
+ return -ENODEV;
+ }
+ }
+ cyclone_ptr = cyclone_timer;
+
+ /* sort out mult/shift values: */
+ clocksource_cyclone.shift = 22;
+ clocksource_cyclone.mult = clocksource_hz2mult(CYCLONE_TIMER_FREQ,
+ clocksource_cyclone.shift);
+
+ return clocksource_register(&clocksource_cyclone);
+}
+
+module_init(init_cyclone_clocksource);
diff --git a/drivers/clocksource/scx200_hrt.c b/drivers/clocksource/scx200_hrt.c
new file mode 100644
index 00000000000..d418b829721
--- /dev/null
+++ b/drivers/clocksource/scx200_hrt.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2006 Jim Cromie
+ *
+ * This is a clocksource driver for the Geode SCx200's 1 or 27 MHz
+ * high-resolution timer. The Geode SC-1100 (at least) has a buggy
+ * time stamp counter (TSC), which loses time unless 'idle=poll' is
+ * given as a boot-arg. In its absence, the Generic Timekeeping code
+ * will detect and de-rate the bad TSC, allowing this timer to take
+ * over timekeeping duties.
+ *
+ * Based on work by John Stultz, and Ted Phelps (in a 2.6.12-rc6 patch)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ */
+
+#include <linux/clocksource.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/scx200.h>
+
+#define NAME "scx200_hrt"
+
+static int mhz27;
+module_param(mhz27, int, 0); /* load time only */
+MODULE_PARM_DESC(mhz27, "count at 27.0 MHz (default is 1.0 MHz)");
+
+static int ppm;
+module_param(ppm, int, 0); /* load time only */
+MODULE_PARM_DESC(ppm, "+-adjust to actual XO freq (ppm)");
+
+/* HiRes Timer configuration register address */
+#define SCx200_TMCNFG_OFFSET (SCx200_TIMER_OFFSET + 5)
+
+/* and config settings */
+#define HR_TMEN (1 << 0) /* timer interrupt enable */
+#define HR_TMCLKSEL (1 << 1) /* 1|0 counts at 27|1 MHz */
+#define HR_TM27MPD (1 << 2) /* 1 turns off input clock (power-down) */
+
+/* The base timer frequency, * 27 if selected */
+#define HRT_FREQ 1000000
+
+static cycle_t read_hrt(void)
+{
+ /* Read the timer value */
+ return (cycle_t) inl(scx200_cb_base + SCx200_TIMER_OFFSET);
+}
+
+#define HRT_SHIFT_1 22
+#define HRT_SHIFT_27 26
+
+static struct clocksource cs_hrt = {
+ .name = "scx200_hrt",
+ .rating = 250,
+ .read = read_hrt,
+ .mask = CLOCKSOURCE_MASK(32),
+ .is_continuous = 1,
+ /* mult, shift are set based on mhz27 flag */
+};
+
+static int __init init_hrt_clocksource(void)
+{
+ /* Make sure scx200 has initializedd the configuration block */
+ if (!scx200_cb_present())
+ return -ENODEV;
+
+ /* Reserve the timer's ISA io-region for ourselves */
+ if (!request_region(scx200_cb_base + SCx200_TIMER_OFFSET,
+ SCx200_TIMER_SIZE,
+ "NatSemi SCx200 High-Resolution Timer")) {
+ printk(KERN_WARNING NAME ": unable to lock timer region\n");
+ return -ENODEV;
+ }
+
+ /* write timer config */
+ outb(HR_TMEN | (mhz27) ? HR_TMCLKSEL : 0,
+ scx200_cb_base + SCx200_TMCNFG_OFFSET);
+
+ if (mhz27) {
+ cs_hrt.shift = HRT_SHIFT_27;
+ cs_hrt.mult = clocksource_hz2mult((HRT_FREQ + ppm) * 27,
+ cs_hrt.shift);
+ } else {
+ cs_hrt.shift = HRT_SHIFT_1;
+ cs_hrt.mult = clocksource_hz2mult(HRT_FREQ + ppm,
+ cs_hrt.shift);
+ }
+ printk(KERN_INFO "enabling scx200 high-res timer (%s MHz +%d ppm)\n",
+ mhz27 ? "27":"1", ppm);
+
+ return clocksource_register(&cs_hrt);
+}
+
+module_init(init_hrt_clocksource);
+
+MODULE_AUTHOR("Jim Cromie <jim.cromie@gmail.com>");
+MODULE_DESCRIPTION("clocksource on SCx200 HiRes Timer");
+MODULE_LICENSE("GPL");
diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c
index 0fdf7fbd649..2801d14a5e4 100644
--- a/drivers/dma/ioatdma.c
+++ b/drivers/dma/ioatdma.c
@@ -824,10 +824,9 @@ static int __init ioat_init_module(void)
{
/* it's currently unsafe to unload this module */
/* if forced, worst case is that rmmod hangs */
- if (THIS_MODULE != NULL)
- THIS_MODULE->unsafe = 1;
+ __unsafe(THIS_MODULE);
- return pci_module_init(&ioat_pci_drv);
+ pci_module_init(&ioat_pci_drv);
}
module_init(ioat_init_module);
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 622a55c72f0..d2428cef159 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -959,7 +959,7 @@ static void ide_check_pm_state(ide_drive_t *drive, struct request *rq)
printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name);
SELECT_DRIVE(drive);
HWIF(drive)->OUTB(8, HWIF(drive)->io_ports[IDE_CONTROL_OFFSET]);
- rc = ide_wait_not_busy(HWIF(drive), 10000);
+ rc = ide_wait_not_busy(HWIF(drive), 100000);
if (rc)
printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name);
}
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index 16a143133f9..7ddb1182873 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -485,7 +485,7 @@ static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat)
unsigned long flags;
u8 err = 0;
- local_irq_set(flags);
+ local_irq_save(flags);
printk("%s: %s: status=0x%02x { ", drive->name, msg, stat);
if (stat & BUSY_STAT)
printk("Busy ");
@@ -567,7 +567,7 @@ static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat)
status.all = stat;
error.all = 0;
- local_irq_set(flags);
+ local_irq_save(flags);
printk("%s: %s: status=0x%02x { ", drive->name, msg, stat);
if (status.b.bsy)
printk("Busy ");
diff --git a/drivers/ide/ide-timing.h b/drivers/ide/ide-timing.h
index 2fcfac6e967..c0864b1e922 100644
--- a/drivers/ide/ide-timing.h
+++ b/drivers/ide/ide-timing.h
@@ -220,6 +220,12 @@ static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing
return -EINVAL;
/*
+ * Copy the timing from the table.
+ */
+
+ *t = *s;
+
+/*
* If the drive is an EIDE drive, it can tell us it needs extended
* PIO/MWDMA cycle timing.
*/
@@ -247,7 +253,7 @@ static int ide_timing_compute(ide_drive_t *drive, short speed, struct ide_timing
* Convert the timing to bus clock counts.
*/
- ide_timing_quantize(s, t, T, UT);
+ ide_timing_quantize(t, t, T, UT);
/*
* Even in DMA/UDMA modes we still use PIO access for IDENTIFY, S.M.A.R.T
diff --git a/drivers/ide/pci/pdc202xx_old.c b/drivers/ide/pci/pdc202xx_old.c
index 7ce5bf78368..22d17548ecd 100644
--- a/drivers/ide/pci/pdc202xx_old.c
+++ b/drivers/ide/pci/pdc202xx_old.c
@@ -370,7 +370,6 @@ chipset_is_set:
if (!(speed)) {
/* restore original pci-config space */
pci_write_config_dword(dev, drive_pci, drive_conf);
- hwif->tuneproc(drive, 5);
return 0;
}
@@ -415,8 +414,6 @@ static void pdc202xx_old_ide_dma_start(ide_drive_t *drive)
if (drive->addressing == 1) {
struct request *rq = HWGROUP(drive)->rq;
ide_hwif_t *hwif = HWIF(drive);
-// struct pci_dev *dev = hwif->pci_dev;
-// unsgned long high_16 = pci_resource_start(dev, 4);
unsigned long high_16 = hwif->dma_master;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u32 word_count = 0;
@@ -436,7 +433,6 @@ static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
{
if (drive->addressing == 1) {
ide_hwif_t *hwif = HWIF(drive);
-// unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
unsigned long high_16 = hwif->dma_master;
unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20);
u8 clock = 0;
@@ -453,8 +449,6 @@ static int pdc202xx_old_ide_dma_end(ide_drive_t *drive)
static int pdc202xx_old_ide_dma_test_irq(ide_drive_t *drive)
{
ide_hwif_t *hwif = HWIF(drive);
-// struct pci_dev *dev = hwif->pci_dev;
-// unsigned long high_16 = pci_resource_start(dev, 4);
unsigned long high_16 = hwif->dma_master;
u8 dma_stat = hwif->INB(hwif->dma_status);
u8 sc1d = hwif->INB((high_16 + 0x001d));
@@ -492,12 +486,7 @@ static int pdc202xx_ide_dma_timeout(ide_drive_t *drive)
static void pdc202xx_reset_host (ide_hwif_t *hwif)
{
-#ifdef CONFIG_BLK_DEV_IDEDMA
-// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
unsigned long high_16 = hwif->dma_master;
-#else /* !CONFIG_BLK_DEV_IDEDMA */
- unsigned long high_16 = pci_resource_start(hwif->pci_dev, 4);
-#endif /* CONFIG_BLK_DEV_IDEDMA */
u8 udma_speed_flag = hwif->INB(high_16|0x001f);
hwif->OUTB((udma_speed_flag | 0x10), (high_16|0x001f));
@@ -550,31 +539,6 @@ static void pdc202xx_reset (ide_drive_t *drive)
#endif
}
-/*
- * Since SUN Cobalt is attempting to do this operation, I should disclose
- * this has been a long time ago Thu Jul 27 16:40:57 2000 was the patch date
- * HOTSWAP ATA Infrastructure.
- */
-static int pdc202xx_tristate (ide_drive_t * drive, int state)
-{
- ide_hwif_t *hwif = HWIF(drive);
-// unsigned long high_16 = hwif->dma_base - (8*(hwif->channel));
- unsigned long high_16 = hwif->dma_master;
- u8 sc1f = hwif->INB(high_16|0x001f);
-
- if (!hwif)
- return -EINVAL;
-
-// hwif->bus_state = state;
-
- if (state) {
- hwif->OUTB(sc1f | 0x08, (high_16|0x001f));
- } else {
- hwif->OUTB(sc1f & ~0x08, (high_16|0x001f));
- }
- return 0;
-}
-
static unsigned int __devinit init_chipset_pdc202xx(struct pci_dev *dev, const char *name)
{
if (dev->resource[PCI_ROM_RESOURCE].start) {
@@ -624,10 +588,8 @@ static void __devinit init_hwif_pdc202xx(ide_hwif_t *hwif)
hwif->tuneproc = &config_chipset_for_pio;
hwif->quirkproc = &pdc202xx_quirkproc;
- if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246) {
- hwif->busproc = &pdc202xx_tristate;
+ if (hwif->pci_dev->device != PCI_DEVICE_ID_PROMISE_20246)
hwif->resetproc = &pdc202xx_reset;
- }
hwif->speedproc = &pdc202xx_tune_chipset;
diff --git a/drivers/ide/pci/piix.c b/drivers/ide/pci/piix.c
index e9b83e1a302..7fac6f57b5d 100644
--- a/drivers/ide/pci/piix.c
+++ b/drivers/ide/pci/piix.c
@@ -222,6 +222,8 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio)
unsigned long flags;
u16 master_data;
u8 slave_data;
+ static DEFINE_SPINLOCK(tune_lock);
+
/* ISP RTC */
u8 timings[][2] = { { 0, 0 },
{ 0, 0 },
@@ -230,7 +232,13 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio)
{ 2, 3 }, };
pio = ide_get_best_pio_mode(drive, pio, 5, NULL);
- spin_lock_irqsave(&ide_lock, flags);
+
+ /*
+ * Master vs slave is synchronized above us but the slave register is
+ * shared by the two hwifs so the corner case of two slave timeouts in
+ * parallel must be locked.
+ */
+ spin_lock_irqsave(&tune_lock, flags);
pci_read_config_word(dev, master_port, &master_data);
if (is_slave) {
master_data = master_data | 0x4000;
@@ -250,7 +258,7 @@ static void piix_tune_drive (ide_drive_t *drive, u8 pio)
pci_write_config_word(dev, master_port, master_data);
if (is_slave)
pci_write_config_byte(dev, slave_port, slave_data);
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(&tune_lock, flags);
}
/**
diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c
index 5bda15904a0..2d5b57be98c 100644
--- a/drivers/ieee1394/eth1394.c
+++ b/drivers/ieee1394/eth1394.c
@@ -1074,8 +1074,7 @@ static inline int update_partial_datagram(struct list_head *pdgl, struct list_he
/* Move list entry to beginnig of list so that oldest partial
* datagrams percolate to the end of the list */
- list_del(lh);
- list_add(lh, pdgl);
+ list_move(lh, pdgl);
return 0;
}
diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c
index 20ce539580f..571ea68c0cf 100644
--- a/drivers/ieee1394/raw1394.c
+++ b/drivers/ieee1394/raw1394.c
@@ -132,8 +132,7 @@ static void free_pending_request(struct pending_request *req)
static void __queue_complete_req(struct pending_request *req)
{
struct file_info *fi = req->file_info;
- list_del(&req->list);
- list_add_tail(&req->list, &fi->req_complete);
+ list_move_tail(&req->list, &fi->req_complete);
up(&fi->complete_sem);
wake_up_interruptible(&fi->poll_wait_complete);
diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c
index b38e02a5db3..5ed4dab52a6 100644
--- a/drivers/infiniband/core/mad.c
+++ b/drivers/infiniband/core/mad.c
@@ -1775,11 +1775,9 @@ ib_find_send_mad(struct ib_mad_agent_private *mad_agent_priv,
void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr)
{
mad_send_wr->timeout = 0;
- if (mad_send_wr->refcount == 1) {
- list_del(&mad_send_wr->agent_list);
- list_add_tail(&mad_send_wr->agent_list,
+ if (mad_send_wr->refcount == 1)
+ list_move_tail(&mad_send_wr->agent_list,
&mad_send_wr->mad_agent_priv->done_list);
- }
}
static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv,
@@ -2098,8 +2096,7 @@ retry:
queued_send_wr = container_of(mad_list,
struct ib_mad_send_wr_private,
mad_list);
- list_del(&mad_list->list);
- list_add_tail(&mad_list->list, &send_queue->list);
+ list_move_tail(&mad_list->list, &send_queue->list);
}
spin_unlock_irqrestore(&send_queue->lock, flags);
diff --git a/drivers/infiniband/core/mad_rmpp.c b/drivers/infiniband/core/mad_rmpp.c
index d4704e054e3..ebcd5b18177 100644
--- a/drivers/infiniband/core/mad_rmpp.c
+++ b/drivers/infiniband/core/mad_rmpp.c
@@ -665,8 +665,7 @@ static void process_rmpp_ack(struct ib_mad_agent_private *agent,
goto out;
mad_send_wr->refcount++;
- list_del(&mad_send_wr->agent_list);
- list_add_tail(&mad_send_wr->agent_list,
+ list_move_tail(&mad_send_wr->agent_list,
&mad_send_wr->mad_agent_priv->send_list);
}
out:
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 216471fa01c..ab40488182b 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -864,8 +864,7 @@ void ipoib_mcast_restart_task(void *dev_ptr)
if (mcast) {
/* Destroy the send only entry */
- list_del(&mcast->list);
- list_add_tail(&mcast->list, &remove_list);
+ list_move_tail(&mcast->list, &remove_list);
rb_replace_node(&mcast->rb_node,
&nmcast->rb_node,
@@ -890,8 +889,7 @@ void ipoib_mcast_restart_task(void *dev_ptr)
rb_erase(&mcast->rb_node, &priv->multicast_tree);
/* Move to the remove list */
- list_del(&mcast->list);
- list_add_tail(&mcast->list, &remove_list);
+ list_move_tail(&mcast->list, &remove_list);
}
}
diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 173c899a1fb..2e541fa0202 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -87,6 +87,11 @@ struct capincci;
#ifdef CONFIG_ISDN_CAPI_MIDDLEWARE
struct capiminor;
+struct datahandle_queue {
+ struct list_head list;
+ u16 datahandle;
+};
+
struct capiminor {
struct list_head list;
struct capincci *nccip;
@@ -109,12 +114,9 @@ struct capiminor {
int outbytes;
/* transmit path */
- struct datahandle_queue {
- struct datahandle_queue *next;
- u16 datahandle;
- } *ackqueue;
+ struct list_head ackqueue;
int nack;
-
+ spinlock_t ackqlock;
};
#endif /* CONFIG_ISDN_CAPI_MIDDLEWARE */
@@ -156,48 +158,54 @@ static LIST_HEAD(capiminor_list);
static int capincci_add_ack(struct capiminor *mp, u16 datahandle)
{
- struct datahandle_queue *n, **pp;
+ struct datahandle_queue *n;
+ unsigned long flags;
n = kmalloc(sizeof(*n), GFP_ATOMIC);
- if (!n) {
- printk(KERN_ERR "capi: alloc datahandle failed\n");
- return -1;
+ if (unlikely(!n)) {
+ printk(KERN_ERR "capi: alloc datahandle failed\n");
+ return -1;
}
- n->next = NULL;
n->datahandle = datahandle;
- for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) ;
- *pp = n;
+ INIT_LIST_HEAD(&n->list);
+ spin_lock_irqsave(&mp->ackqlock, flags);
+ list_add_tail(&n->list, &mp->ackqueue);
mp->nack++;
+ spin_unlock_irqrestore(&mp->ackqlock, flags);
return 0;
}
static int capiminor_del_ack(struct capiminor *mp, u16 datahandle)
{
- struct datahandle_queue **pp, *p;
+ struct datahandle_queue *p, *tmp;
+ unsigned long flags;
- for (pp = &mp->ackqueue; *pp; pp = &(*pp)->next) {
- if ((*pp)->datahandle == datahandle) {
- p = *pp;
- *pp = (*pp)->next;
+ spin_lock_irqsave(&mp->ackqlock, flags);
+ list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) {
+ if (p->datahandle == datahandle) {
+ list_del(&p->list);
kfree(p);
mp->nack--;
+ spin_unlock_irqrestore(&mp->ackqlock, flags);
return 0;
}
}
+ spin_unlock_irqrestore(&mp->ackqlock, flags);
return -1;
}
static void capiminor_del_all_ack(struct capiminor *mp)
{
- struct datahandle_queue **pp, *p;
+ struct datahandle_queue *p, *tmp;
+ unsigned long flags;
- pp = &mp->ackqueue;
- while (*pp) {
- p = *pp;
- *pp = (*pp)->next;
+ spin_lock_irqsave(&mp->ackqlock, flags);
+ list_for_each_entry_safe(p, tmp, &mp->ackqueue, list) {
+ list_del(&p->list);
kfree(p);
mp->nack--;
}
+ spin_unlock_irqrestore(&mp->ackqlock, flags);
}
@@ -220,6 +228,8 @@ static struct capiminor *capiminor_alloc(struct capi20_appl *ap, u32 ncci)
mp->ncci = ncci;
mp->msgid = 0;
atomic_set(&mp->ttyopencount,0);
+ INIT_LIST_HEAD(&mp->ackqueue);
+ spin_lock_init(&mp->ackqlock);
skb_queue_head_init(&mp->inqueue);
skb_queue_head_init(&mp->outqueue);
diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c
index eb41aba3dde..8a45715dd4c 100644
--- a/drivers/isdn/gigaset/bas-gigaset.c
+++ b/drivers/isdn/gigaset/bas-gigaset.c
@@ -65,23 +65,22 @@ static struct usb_device_id gigaset_table [] = {
MODULE_DEVICE_TABLE(usb, gigaset_table);
-/*======================= local function prototypes =============================*/
+/*======================= local function prototypes ==========================*/
-/* This function is called if a new device is connected to the USB port. It
- * checks whether this new device belongs to this driver.
- */
+/* function called if a new device belonging to this driver is connected */
static int gigaset_probe(struct usb_interface *interface,
const struct usb_device_id *id);
/* Function will be called if the device is unplugged */
static void gigaset_disconnect(struct usb_interface *interface);
-static void read_ctrl_callback(struct urb *, struct pt_regs *);
+static int atread_submit(struct cardstate *, int);
static void stopurbs(struct bas_bc_state *);
+static int req_submit(struct bc_state *, int, int, int);
static int atwrite_submit(struct cardstate *, unsigned char *, int);
static int start_cbsend(struct cardstate *);
-/*==============================================================================*/
+/*============================================================================*/
struct bas_cardstate {
struct usb_device *udev; /* USB device pointer */
@@ -91,6 +90,7 @@ struct bas_cardstate {
struct urb *urb_ctrl; /* control pipe default URB */
struct usb_ctrlrequest dr_ctrl;
struct timer_list timer_ctrl; /* control request timeout */
+ int retry_ctrl;
struct timer_list timer_atrdy; /* AT command ready timeout */
struct urb *urb_cmd_out; /* for sending AT commands */
@@ -307,6 +307,7 @@ static int gigaset_set_line_ctrl(struct cardstate *cs, unsigned cflag)
* hang up any existing connection because of an unrecoverable error
* This function may be called from any context and takes care of scheduling
* the necessary actions for execution outside of interrupt context.
+ * cs->lock must not be held.
* argument:
* B channel control structure
*/
@@ -325,14 +326,17 @@ static inline void error_hangup(struct bc_state *bcs)
/* error_reset
* reset Gigaset device because of an unrecoverable error
- * This function may be called from any context, and should take care of
+ * This function may be called from any context, and takes care of
* scheduling the necessary actions for execution outside of interrupt context.
- * Right now, it just generates a kernel message calling for help.
+ * cs->lock must not be held.
* argument:
* controller state structure
*/
static inline void error_reset(struct cardstate *cs)
{
+ /* close AT command channel to recover (ignore errors) */
+ req_submit(cs->bcs, HD_CLOSE_ATCHANNEL, 0, BAS_TIMEOUT);
+
//FIXME try to recover without bothering the user
dev_err(cs->dev,
"unrecoverable error - please disconnect Gigaset base to reset\n");
@@ -403,14 +407,30 @@ static void cmd_in_timeout(unsigned long data)
{
struct cardstate *cs = (struct cardstate *) data;
struct bas_cardstate *ucs = cs->hw.bas;
+ int rc;
if (!ucs->rcvbuf_size) {
gig_dbg(DEBUG_USBREQ, "%s: no receive in progress", __func__);
return;
}
- dev_err(cs->dev, "timeout reading AT response\n");
- error_reset(cs); //FIXME retry?
+ if (ucs->retry_cmd_in++ < BAS_RETRY) {
+ dev_notice(cs->dev, "control read: timeout, retry %d\n",
+ ucs->retry_cmd_in);
+ rc = atread_submit(cs, BAS_TIMEOUT);
+ if (rc >= 0 || rc == -ENODEV)
+ /* resubmitted or disconnected */
+ /* - bypass regular exit block */
+ return;
+ } else {
+ dev_err(cs->dev,
+ "control read: timeout, giving up after %d tries\n",
+ ucs->retry_cmd_in);
+ }
+ kfree(ucs->rcvbuf);
+ ucs->rcvbuf = NULL;
+ ucs->rcvbuf_size = 0;
+ error_reset(cs);
}
/* set/clear bits in base connection state, return previous state
@@ -428,6 +448,96 @@ inline static int update_basstate(struct bas_cardstate *ucs,
return state;
}
+/* read_ctrl_callback
+ * USB completion handler for control pipe input
+ * called by the USB subsystem in interrupt context
+ * parameter:
+ * urb USB request block
+ * urb->context = inbuf structure for controller state
+ */
+static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
+{
+ struct inbuf_t *inbuf = urb->context;
+ struct cardstate *cs = inbuf->cs;
+ struct bas_cardstate *ucs = cs->hw.bas;
+ int have_data = 0;
+ unsigned numbytes;
+ int rc;
+
+ update_basstate(ucs, 0, BS_ATRDPEND);
+
+ if (!ucs->rcvbuf_size) {
+ dev_warn(cs->dev, "%s: no receive in progress\n", __func__);
+ return;
+ }
+
+ del_timer(&ucs->timer_cmd_in);
+
+ switch (urb->status) {
+ case 0: /* normal completion */
+ numbytes = urb->actual_length;
+ if (unlikely(numbytes != ucs->rcvbuf_size)) {
+ dev_warn(cs->dev,
+ "control read: received %d chars, expected %d\n",
+ numbytes, ucs->rcvbuf_size);
+ if (numbytes > ucs->rcvbuf_size)
+ numbytes = ucs->rcvbuf_size;
+ }
+
+ /* copy received bytes to inbuf */
+ have_data = gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes);
+
+ if (unlikely(numbytes < ucs->rcvbuf_size)) {
+ /* incomplete - resubmit for remaining bytes */
+ ucs->rcvbuf_size -= numbytes;
+ ucs->retry_cmd_in = 0;
+ rc = atread_submit(cs, BAS_TIMEOUT);
+ if (rc >= 0 || rc == -ENODEV)
+ /* resubmitted or disconnected */
+ /* - bypass regular exit block */
+ return;
+ error_reset(cs);
+ }
+ break;
+
+ case -ENOENT: /* cancelled */
+ case -ECONNRESET: /* cancelled (async) */
+ case -EINPROGRESS: /* pending */
+ case -ENODEV: /* device removed */
+ case -ESHUTDOWN: /* device shut down */
+ /* no action necessary */
+ gig_dbg(DEBUG_USBREQ, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
+ break;
+
+ default: /* severe trouble */
+ dev_warn(cs->dev, "control read: %s\n",
+ get_usb_statmsg(urb->status));
+ if (ucs->retry_cmd_in++ < BAS_RETRY) {
+ dev_notice(cs->dev, "control read: retry %d\n",
+ ucs->retry_cmd_in);
+ rc = atread_submit(cs, BAS_TIMEOUT);
+ if (rc >= 0 || rc == -ENODEV)
+ /* resubmitted or disconnected */
+ /* - bypass regular exit block */
+ return;
+ } else {
+ dev_err(cs->dev,
+ "control read: giving up after %d tries\n",
+ ucs->retry_cmd_in);
+ }
+ error_reset(cs);
+ }
+
+ kfree(ucs->rcvbuf);
+ ucs->rcvbuf = NULL;
+ ucs->rcvbuf_size = 0;
+ if (have_data) {
+ gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
+ gigaset_schedule_event(cs);
+ }
+}
+
/* atread_submit
* submit an HD_READ_ATMESSAGE command URB and optionally start a timeout
* parameters:
@@ -466,7 +576,7 @@ static int atread_submit(struct cardstate *cs, int timeout)
if ((ret = usb_submit_urb(ucs->urb_cmd_in, SLAB_ATOMIC)) != 0) {
update_basstate(ucs, 0, BS_ATRDPEND);
dev_err(cs->dev, "could not submit HD_READ_ATMESSAGE: %s\n",
- get_usb_statmsg(ret));
+ get_usb_rcmsg(ret));
return ret;
}
@@ -611,9 +721,12 @@ static void read_int_callback(struct urb *urb, struct pt_regs *regs)
kfree(ucs->rcvbuf);
ucs->rcvbuf = NULL;
ucs->rcvbuf_size = 0;
- if (rc != -ENODEV)
+ if (rc != -ENODEV) {
//FIXME corrective action?
+ spin_unlock_irqrestore(&cs->lock, flags);
error_reset(cs);
+ break;
+ }
}
spin_unlock_irqrestore(&cs->lock, flags);
break;
@@ -643,97 +756,6 @@ resubmit:
}
}
-/* read_ctrl_callback
- * USB completion handler for control pipe input
- * called by the USB subsystem in interrupt context
- * parameter:
- * urb USB request block
- * urb->context = inbuf structure for controller state
- */
-static void read_ctrl_callback(struct urb *urb, struct pt_regs *regs)
-{
- struct inbuf_t *inbuf = urb->context;
- struct cardstate *cs = inbuf->cs;
- struct bas_cardstate *ucs = cs->hw.bas;
- int have_data = 0;
- unsigned numbytes;
- int rc;
-
- update_basstate(ucs, 0, BS_ATRDPEND);
-
- if (!ucs->rcvbuf_size) {
- dev_warn(cs->dev, "%s: no receive in progress\n", __func__);
- return;
- }
-
- del_timer(&ucs->timer_cmd_in);
-
- switch (urb->status) {
- case 0: /* normal completion */
- numbytes = urb->actual_length;
- if (unlikely(numbytes == 0)) {
- dev_warn(cs->dev,
- "control read: empty block received\n");
- goto retry;
- }
- if (unlikely(numbytes != ucs->rcvbuf_size)) {
- dev_warn(cs->dev,
- "control read: received %d chars, expected %d\n",
- numbytes, ucs->rcvbuf_size);
- if (numbytes > ucs->rcvbuf_size)
- numbytes = ucs->rcvbuf_size;
- }
-
- /* copy received bytes to inbuf */
- have_data = gigaset_fill_inbuf(inbuf, ucs->rcvbuf, numbytes);
-
- if (unlikely(numbytes < ucs->rcvbuf_size)) {
- /* incomplete - resubmit for remaining bytes */
- ucs->rcvbuf_size -= numbytes;
- ucs->retry_cmd_in = 0;
- goto retry;
- }
- break;
-
- case -ENOENT: /* cancelled */
- case -ECONNRESET: /* cancelled (async) */
- case -EINPROGRESS: /* pending */
- case -ENODEV: /* device removed */
- case -ESHUTDOWN: /* device shut down */
- /* no action necessary */
- gig_dbg(DEBUG_USBREQ, "%s: %s",
- __func__, get_usb_statmsg(urb->status));
- break;
-
- default: /* severe trouble */
- dev_warn(cs->dev, "control read: %s\n",
- get_usb_statmsg(urb->status));
- retry:
- if (ucs->retry_cmd_in++ < BAS_RETRY) {
- dev_notice(cs->dev, "control read: retry %d\n",
- ucs->retry_cmd_in);
- rc = atread_submit(cs, BAS_TIMEOUT);
- if (rc >= 0 || rc == -ENODEV)
- /* resubmitted or disconnected */
- /* - bypass regular exit block */
- return;
- } else {
- dev_err(cs->dev,
- "control read: giving up after %d tries\n",
- ucs->retry_cmd_in);
- }
- error_reset(cs);
- }
-
- kfree(ucs->rcvbuf);
- ucs->rcvbuf = NULL;
- ucs->rcvbuf_size = 0;
- if (have_data) {
- gig_dbg(DEBUG_INTR, "%s-->BH", __func__);
- gigaset_schedule_event(cs);
- }
-}
-
/* read_iso_callback
* USB completion handler for B channel isochronous input
* called by the USB subsystem in interrupt context
@@ -1378,6 +1400,7 @@ static void req_timeout(unsigned long data)
case HD_CLOSE_B1CHANNEL:
dev_err(bcs->cs->dev, "timeout closing channel %d\n",
bcs->channel + 1);
+ error_reset(bcs->cs);
break;
default:
@@ -1396,22 +1419,61 @@ static void req_timeout(unsigned long data)
static void write_ctrl_callback(struct urb *urb, struct pt_regs *regs)
{
struct bas_cardstate *ucs = urb->context;
+ int rc;
unsigned long flags;
- spin_lock_irqsave(&ucs->lock, flags);
- if (urb->status && ucs->pending) {
- dev_err(&ucs->interface->dev,
- "control request 0x%02x failed: %s\n",
- ucs->pending, get_usb_statmsg(urb->status));
- del_timer(&ucs->timer_ctrl);
- ucs->pending = 0;
- }
- /* individual handling of specific request types */
- switch (ucs->pending) {
- case HD_DEVICE_INIT_ACK: /* no reply expected */
- ucs->pending = 0;
+ /* check status */
+ switch (urb->status) {
+ case 0: /* normal completion */
+ spin_lock_irqsave(&ucs->lock, flags);
+ switch (ucs->pending) {
+ case HD_DEVICE_INIT_ACK: /* no reply expected */
+ del_timer(&ucs->timer_ctrl);
+ ucs->pending = 0;
+ break;
+ }
+ spin_unlock_irqrestore(&ucs->lock, flags);
+ return;
+
+ case -ENOENT: /* cancelled */
+ case -ECONNRESET: /* cancelled (async) */
+ case -EINPROGRESS: /* pending */
+ case -ENODEV: /* device removed */
+ case -ESHUTDOWN: /* device shut down */
+ /* ignore silently */
+ gig_dbg(DEBUG_USBREQ, "%s: %s",
+ __func__, get_usb_statmsg(urb->status));
break;
+
+ default: /* any failure */
+ if (++ucs->retry_ctrl > BAS_RETRY) {
+ dev_err(&ucs->interface->dev,
+ "control request 0x%02x failed: %s\n",
+ ucs->dr_ctrl.bRequest,
+ get_usb_statmsg(urb->status));
+ break; /* give up */
+ }
+ dev_notice(&ucs->interface->dev,
+ "control request 0x%02x: %s, retry %d\n",
+ ucs->dr_ctrl.bRequest, get_usb_statmsg(urb->status),
+ ucs->retry_ctrl);
+ /* urb->dev is clobbered by USB subsystem */
+ urb->dev = ucs->udev;
+ rc = usb_submit_urb(urb, SLAB_ATOMIC);
+ if (unlikely(rc)) {
+ dev_err(&ucs->interface->dev,
+ "could not resubmit request 0x%02x: %s\n",
+ ucs->dr_ctrl.bRequest, get_usb_rcmsg(rc));
+ break;
+ }
+ /* resubmitted */
+ return;
}
+
+ /* failed, clear pending request */
+ spin_lock_irqsave(&ucs->lock, flags);
+ del_timer(&ucs->timer_ctrl);
+ ucs->pending = 0;
spin_unlock_irqrestore(&ucs->lock, flags);
}
@@ -1455,9 +1517,11 @@ static int req_submit(struct bc_state *bcs, int req, int val, int timeout)
usb_sndctrlpipe(ucs->udev, 0),
(unsigned char*) &ucs->dr_ctrl, NULL, 0,
write_ctrl_callback, ucs);
- if ((ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC)) != 0) {
+ ucs->retry_ctrl = 0;
+ ret = usb_submit_urb(ucs->urb_ctrl, SLAB_ATOMIC);
+ if (unlikely(ret)) {
dev_err(bcs->cs->dev, "could not submit request 0x%02x: %s\n",
- req, get_usb_statmsg(ret));
+ req, get_usb_rcmsg(ret));
spin_unlock_irqrestore(&ucs->lock, flags);
return ret;
}
diff --git a/drivers/isdn/gigaset/ev-layer.c b/drivers/isdn/gigaset/ev-layer.c
index 18e05c09b71..44f02dbd111 100644
--- a/drivers/isdn/gigaset/ev-layer.c
+++ b/drivers/isdn/gigaset/ev-layer.c
@@ -1262,7 +1262,8 @@ static void do_action(int action, struct cardstate *cs,
break;
case ACT_HUPMODEM:
/* send "+++" (hangup in unimodem mode) */
- cs->ops->write_cmd(cs, "+++", 3, NULL);
+ if (cs->connected)
+ cs->ops->write_cmd(cs, "+++", 3, NULL);
break;
case ACT_RING:
/* get fresh AT state structure for new CID */
@@ -1294,7 +1295,6 @@ static void do_action(int action, struct cardstate *cs,
break;
case ACT_ICALL:
handle_icall(cs, bcs, p_at_state);
- at_state = *p_at_state;
break;
case ACT_FAILSDOWN:
dev_warn(cs->dev, "Could not shut down the device.\n");
@@ -1334,10 +1334,8 @@ static void do_action(int action, struct cardstate *cs,
*/
at_state->pending_commands |= PC_DLE0;
atomic_set(&cs->commands_pending, 1);
- } else {
+ } else
disconnect(p_at_state);
- at_state = *p_at_state;
- }
break;
case ACT_FAKEDLE0:
at_state->int_var[VAR_ZDLE] = 0;
@@ -1354,10 +1352,8 @@ static void do_action(int action, struct cardstate *cs,
at_state->cid = -1;
if (bcs && cs->onechannel)
at_state->pending_commands |= PC_DLE0;
- else {
+ else
disconnect(p_at_state);
- at_state = *p_at_state;
- }
schedule_init(cs, MS_RECOVER);
break;
case ACT_FAILDLE0:
@@ -1410,7 +1406,6 @@ static void do_action(int action, struct cardstate *cs,
case ACT_ABORTACCEPT: /* hangup/error/timeout during ICALL processing */
disconnect(p_at_state);
- at_state = *p_at_state;
break;
case ACT_ABORTDIAL: /* error/timeout during dial preparation */
diff --git a/drivers/isdn/hisax/q931.c b/drivers/isdn/hisax/q931.c
index abecabf8c27..aacbf0d14b6 100644
--- a/drivers/isdn/hisax/q931.c
+++ b/drivers/isdn/hisax/q931.c
@@ -1402,12 +1402,12 @@ dlogframe(struct IsdnCardState *cs, struct sk_buff *skb, int dir)
}
/* No, locate it in the table */
if (cset == 0) {
- for (i = 0; i < IESIZE; i++)
+ for (i = 0; i < IESIZE_NI1; i++)
if (*buf == ielist_ni1[i].nr)
break;
/* When not found, give appropriate msg */
- if (i != IESIZE) {
+ if (i != IESIZE_NI1) {
dp += sprintf(dp, " %s\n", ielist_ni1[i].descr);
dp += ielist_ni1[i].f(dp, buf);
} else
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index ac25a48362a..bf869ed03ee 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -90,7 +90,7 @@ config MD_RAID10
depends on BLK_DEV_MD && EXPERIMENTAL
---help---
RAID-10 provides a combination of striping (RAID-0) and
- mirroring (RAID-1) with easier configuration and more flexable
+ mirroring (RAID-1) with easier configuration and more flexible
layout.
Unlike RAID-0, but like RAID-1, RAID-10 requires all devices to
be the same size (or at least, only as much as the smallest device
@@ -104,8 +104,8 @@ config MD_RAID10
If unsure, say Y.
-config MD_RAID5
- tristate "RAID-4/RAID-5 mode"
+config MD_RAID456
+ tristate "RAID-4/RAID-5/RAID-6 mode"
depends on BLK_DEV_MD
---help---
A RAID-5 set of N drives with a capacity of C MB per drive provides
@@ -116,20 +116,28 @@ config MD_RAID5
while a RAID-5 set distributes the parity across the drives in one
of the available parity distribution methods.
+ A RAID-6 set of N drives with a capacity of C MB per drive
+ provides the capacity of C * (N - 2) MB, and protects
+ against a failure of any two drives. For a given sector
+ (row) number, (N - 2) drives contain data sectors, and two
+ drives contains two independent redundancy syndromes. Like
+ RAID-5, RAID-6 distributes the syndromes across the drives
+ in one of the available parity distribution methods.
+
Information about Software RAID on Linux is contained in the
Software-RAID mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>. There you will also
learn where to get the supporting user space utilities raidtools.
- If you want to use such a RAID-4/RAID-5 set, say Y. To
+ If you want to use such a RAID-4/RAID-5/RAID-6 set, say Y. To
compile this code as a module, choose M here: the module
- will be called raid5.
+ will be called raid456.
If unsure, say Y.
config MD_RAID5_RESHAPE
bool "Support adding drives to a raid-5 array (experimental)"
- depends on MD_RAID5 && EXPERIMENTAL
+ depends on MD_RAID456 && EXPERIMENTAL
---help---
A RAID-5 set can be expanded by adding extra drives. This
requires "restriping" the array which means (almost) every
@@ -139,7 +147,7 @@ config MD_RAID5_RESHAPE
is online. However it is still EXPERIMENTAL code. It should
work, but please be sure that you have backups.
- You will need mdadm verion 2.4.1 or later to use this
+ You will need mdadm version 2.4.1 or later to use this
feature safely. During the early stage of reshape there is
a critical section where live data is being over-written. A
crash during this time needs extra care for recovery. The
@@ -154,28 +162,6 @@ config MD_RAID5_RESHAPE
There should be enough spares already present to make the new
array workable.
-config MD_RAID6
- tristate "RAID-6 mode"
- depends on BLK_DEV_MD
- ---help---
- A RAID-6 set of N drives with a capacity of C MB per drive
- provides the capacity of C * (N - 2) MB, and protects
- against a failure of any two drives. For a given sector
- (row) number, (N - 2) drives contain data sectors, and two
- drives contains two independent redundancy syndromes. Like
- RAID-5, RAID-6 distributes the syndromes across the drives
- in one of the available parity distribution methods.
-
- RAID-6 requires mdadm-1.5.0 or later, available at:
-
- ftp://ftp.kernel.org/pub/linux/utils/raid/mdadm/
-
- If you want to use such a RAID-6 set, say Y. To compile
- this code as a module, choose M here: the module will be
- called raid6.
-
- If unsure, say Y.
-
config MD_MULTIPATH
tristate "Multipath I/O support"
depends on BLK_DEV_MD
@@ -235,7 +221,7 @@ config DM_SNAPSHOT
tristate "Snapshot target (EXPERIMENTAL)"
depends on BLK_DEV_DM && EXPERIMENTAL
---help---
- Allow volume managers to take writeable snapshots of a device.
+ Allow volume managers to take writable snapshots of a device.
config DM_MIRROR
tristate "Mirror target (EXPERIMENTAL)"
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index d3efedf6a6a..34957a68d92 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -8,7 +8,7 @@ dm-multipath-objs := dm-hw-handler.o dm-path-selector.o dm-mpath.o
dm-snapshot-objs := dm-snap.o dm-exception-store.o
dm-mirror-objs := dm-log.o dm-raid1.o
md-mod-objs := md.o bitmap.o
-raid6-objs := raid6main.o raid6algos.o raid6recov.o raid6tables.o \
+raid456-objs := raid5.o raid6algos.o raid6recov.o raid6tables.o \
raid6int1.o raid6int2.o raid6int4.o \
raid6int8.o raid6int16.o raid6int32.o \
raid6altivec1.o raid6altivec2.o raid6altivec4.o \
@@ -25,8 +25,7 @@ obj-$(CONFIG_MD_LINEAR) += linear.o
obj-$(CONFIG_MD_RAID0) += raid0.o
obj-$(CONFIG_MD_RAID1) += raid1.o
obj-$(CONFIG_MD_RAID10) += raid10.o
-obj-$(CONFIG_MD_RAID5) += raid5.o xor.o
-obj-$(CONFIG_MD_RAID6) += raid6.o xor.o
+obj-$(CONFIG_MD_RAID456) += raid456.o xor.o
obj-$(CONFIG_MD_MULTIPATH) += multipath.o
obj-$(CONFIG_MD_FAULTY) += faulty.o
obj-$(CONFIG_BLK_DEV_MD) += md-mod.o
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index f8ffaee20ff..ebbd2d85625 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -7,7 +7,6 @@
* additions, Copyright (C) 2003-2004, Paul Clements, SteelEye Technology, Inc.:
* - added disk storage for bitmap
* - changes to allow various bitmap chunk sizes
- * - added bitmap daemon (to asynchronously clear bitmap bits from disk)
*/
/*
@@ -15,9 +14,6 @@
*
* flush after percent set rather than just time based. (maybe both).
* wait if count gets too high, wake when it drops to half.
- * allow bitmap to be mirrored with superblock (before or after...)
- * allow hot-add to re-instate a current device.
- * allow hot-add of bitmap after quiessing device
*/
#include <linux/module.h>
@@ -73,24 +69,6 @@ static inline char * bmname(struct bitmap *bitmap)
/*
- * test if the bitmap is active
- */
-int bitmap_active(struct bitmap *bitmap)
-{
- unsigned long flags;
- int res = 0;
-
- if (!bitmap)
- return res;
- spin_lock_irqsave(&bitmap->lock, flags);
- res = bitmap->flags & BITMAP_ACTIVE;
- spin_unlock_irqrestore(&bitmap->lock, flags);
- return res;
-}
-
-#define WRITE_POOL_SIZE 256
-
-/*
* just a placeholder - calls kmalloc for bitmap pages
*/
static unsigned char *bitmap_alloc_page(struct bitmap *bitmap)
@@ -269,6 +247,8 @@ static struct page *read_sb_page(mddev_t *mddev, long offset, unsigned long inde
if (sync_page_io(rdev->bdev, target, PAGE_SIZE, page, READ)) {
page->index = index;
+ attach_page_buffers(page, NULL); /* so that free_buffer will
+ * quietly no-op */
return page;
}
}
@@ -300,77 +280,132 @@ static int write_sb_page(mddev_t *mddev, long offset, struct page *page, int wai
*/
static int write_page(struct bitmap *bitmap, struct page *page, int wait)
{
- int ret = -ENOMEM;
+ struct buffer_head *bh;
if (bitmap->file == NULL)
return write_sb_page(bitmap->mddev, bitmap->offset, page, wait);
- flush_dcache_page(page); /* make sure visible to anyone reading the file */
+ bh = page_buffers(page);
- if (wait)
- lock_page(page);
- else {
- if (TestSetPageLocked(page))
- return -EAGAIN; /* already locked */
- if (PageWriteback(page)) {
- unlock_page(page);
- return -EAGAIN;
- }
+ while (bh && bh->b_blocknr) {
+ atomic_inc(&bitmap->pending_writes);
+ set_buffer_locked(bh);
+ set_buffer_mapped(bh);
+ submit_bh(WRITE, bh);
+ bh = bh->b_this_page;
}
- ret = page->mapping->a_ops->prepare_write(bitmap->file, page, 0, PAGE_SIZE);
- if (!ret)
- ret = page->mapping->a_ops->commit_write(bitmap->file, page, 0,
- PAGE_SIZE);
- if (ret) {
- unlock_page(page);
- return ret;
+ if (wait) {
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
+ return (bitmap->flags & BITMAP_WRITE_ERROR) ? -EIO : 0;
}
+ return 0;
+}
- set_page_dirty(page); /* force it to be written out */
-
- if (!wait) {
- /* add to list to be waited for by daemon */
- struct page_list *item = mempool_alloc(bitmap->write_pool, GFP_NOIO);
- item->page = page;
- get_page(page);
- spin_lock(&bitmap->write_lock);
- list_add(&item->list, &bitmap->complete_pages);
- spin_unlock(&bitmap->write_lock);
- md_wakeup_thread(bitmap->writeback_daemon);
+static void end_bitmap_write(struct buffer_head *bh, int uptodate)
+{
+ struct bitmap *bitmap = bh->b_private;
+ unsigned long flags;
+
+ if (!uptodate) {
+ spin_lock_irqsave(&bitmap->lock, flags);
+ bitmap->flags |= BITMAP_WRITE_ERROR;
+ spin_unlock_irqrestore(&bitmap->lock, flags);
+ }
+ if (atomic_dec_and_test(&bitmap->pending_writes))
+ wake_up(&bitmap->write_wait);
+}
+
+/* copied from buffer.c */
+static void
+__clear_page_buffers(struct page *page)
+{
+ ClearPagePrivate(page);
+ set_page_private(page, 0);
+ page_cache_release(page);
+}
+static void free_buffers(struct page *page)
+{
+ struct buffer_head *bh = page_buffers(page);
+
+ while (bh) {
+ struct buffer_head *next = bh->b_this_page;
+ free_buffer_head(bh);
+ bh = next;
}
- return write_one_page(page, wait);
+ __clear_page_buffers(page);
+ put_page(page);
}
-/* read a page from a file, pinning it into cache, and return bytes_read */
+/* read a page from a file.
+ * We both read the page, and attach buffers to the page to record the
+ * address of each block (using bmap). These addresses will be used
+ * to write the block later, completely bypassing the filesystem.
+ * This usage is similar to how swap files are handled, and allows us
+ * to write to a file with no concerns of memory allocation failing.
+ */
static struct page *read_page(struct file *file, unsigned long index,
- unsigned long *bytes_read)
+ struct bitmap *bitmap,
+ unsigned long count)
{
- struct inode *inode = file->f_mapping->host;
struct page *page = NULL;
- loff_t isize = i_size_read(inode);
- unsigned long end_index = isize >> PAGE_SHIFT;
+ struct inode *inode = file->f_dentry->d_inode;
+ struct buffer_head *bh;
+ sector_t block;
PRINTK("read bitmap file (%dB @ %Lu)\n", (int)PAGE_SIZE,
(unsigned long long)index << PAGE_SHIFT);
- page = read_cache_page(inode->i_mapping, index,
- (filler_t *)inode->i_mapping->a_ops->readpage, file);
+ page = alloc_page(GFP_KERNEL);
+ if (!page)
+ page = ERR_PTR(-ENOMEM);
if (IS_ERR(page))
goto out;
- wait_on_page_locked(page);
- if (!PageUptodate(page) || PageError(page)) {
+
+ bh = alloc_page_buffers(page, 1<<inode->i_blkbits, 0);
+ if (!bh) {
put_page(page);
- page = ERR_PTR(-EIO);
+ page = ERR_PTR(-ENOMEM);
goto out;
}
+ attach_page_buffers(page, bh);
+ block = index << (PAGE_SHIFT - inode->i_blkbits);
+ while (bh) {
+ if (count == 0)
+ bh->b_blocknr = 0;
+ else {
+ bh->b_blocknr = bmap(inode, block);
+ if (bh->b_blocknr == 0) {
+ /* Cannot use this file! */
+ free_buffers(page);
+ page = ERR_PTR(-EINVAL);
+ goto out;
+ }
+ bh->b_bdev = inode->i_sb->s_bdev;
+ if (count < (1<<inode->i_blkbits))
+ count = 0;
+ else
+ count -= (1<<inode->i_blkbits);
+
+ bh->b_end_io = end_bitmap_write;
+ bh->b_private = bitmap;
+ atomic_inc(&bitmap->pending_writes);
+ set_buffer_locked(bh);
+ set_buffer_mapped(bh);
+ submit_bh(READ, bh);
+ }
+ block++;
+ bh = bh->b_this_page;
+ }
+ page->index = index;
- if (index > end_index) /* we have read beyond EOF */
- *bytes_read = 0;
- else if (index == end_index) /* possible short read */
- *bytes_read = isize & ~PAGE_MASK;
- else
- *bytes_read = PAGE_SIZE; /* got a full page */
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
+ if (bitmap->flags & BITMAP_WRITE_ERROR) {
+ free_buffers(page);
+ page = ERR_PTR(-EIO);
+ }
out:
if (IS_ERR(page))
printk(KERN_ALERT "md: bitmap read error: (%dB @ %Lu): %ld\n",
@@ -441,16 +476,14 @@ static int bitmap_read_sb(struct bitmap *bitmap)
char *reason = NULL;
bitmap_super_t *sb;
unsigned long chunksize, daemon_sleep, write_behind;
- unsigned long bytes_read;
unsigned long long events;
int err = -EINVAL;
/* page 0 is the superblock, read it... */
if (bitmap->file)
- bitmap->sb_page = read_page(bitmap->file, 0, &bytes_read);
+ bitmap->sb_page = read_page(bitmap->file, 0, bitmap, PAGE_SIZE);
else {
bitmap->sb_page = read_sb_page(bitmap->mddev, bitmap->offset, 0);
- bytes_read = PAGE_SIZE;
}
if (IS_ERR(bitmap->sb_page)) {
err = PTR_ERR(bitmap->sb_page);
@@ -460,13 +493,6 @@ static int bitmap_read_sb(struct bitmap *bitmap)
sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
- if (bytes_read < sizeof(*sb)) { /* short read */
- printk(KERN_INFO "%s: bitmap file superblock truncated\n",
- bmname(bitmap));
- err = -ENOSPC;
- goto out;
- }
-
chunksize = le32_to_cpu(sb->chunksize);
daemon_sleep = le32_to_cpu(sb->daemon_sleep);
write_behind = le32_to_cpu(sb->write_behind);
@@ -550,7 +576,6 @@ static void bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
spin_unlock_irqrestore(&bitmap->lock, flags);
return;
}
- get_page(bitmap->sb_page);
spin_unlock_irqrestore(&bitmap->lock, flags);
sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
switch (op) {
@@ -561,7 +586,6 @@ static void bitmap_mask_state(struct bitmap *bitmap, enum bitmap_state bits,
default: BUG();
}
kunmap_atomic(sb, KM_USER0);
- put_page(bitmap->sb_page);
}
/*
@@ -614,48 +638,17 @@ static void bitmap_file_unmap(struct bitmap *bitmap)
while (pages--)
if (map[pages]->index != 0) /* 0 is sb_page, release it below */
- put_page(map[pages]);
+ free_buffers(map[pages]);
kfree(map);
kfree(attr);
- safe_put_page(sb_page);
-}
-
-static void bitmap_stop_daemon(struct bitmap *bitmap);
-
-/* dequeue the next item in a page list -- don't call from irq context */
-static struct page_list *dequeue_page(struct bitmap *bitmap)
-{
- struct page_list *item = NULL;
- struct list_head *head = &bitmap->complete_pages;
-
- spin_lock(&bitmap->write_lock);
- if (list_empty(head))
- goto out;
- item = list_entry(head->prev, struct page_list, list);
- list_del(head->prev);
-out:
- spin_unlock(&bitmap->write_lock);
- return item;
-}
-
-static void drain_write_queues(struct bitmap *bitmap)
-{
- struct page_list *item;
-
- while ((item = dequeue_page(bitmap))) {
- /* don't bother to wait */
- put_page(item->page);
- mempool_free(item, bitmap->write_pool);
- }
-
- wake_up(&bitmap->write_wait);
+ if (sb_page)
+ free_buffers(sb_page);
}
static void bitmap_file_put(struct bitmap *bitmap)
{
struct file *file;
- struct inode *inode;
unsigned long flags;
spin_lock_irqsave(&bitmap->lock, flags);
@@ -663,17 +656,14 @@ static void bitmap_file_put(struct bitmap *bitmap)
bitmap->file = NULL;
spin_unlock_irqrestore(&bitmap->lock, flags);
- bitmap_stop_daemon(bitmap);
-
- drain_write_queues(bitmap);
-
+ if (file)
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
bitmap_file_unmap(bitmap);
if (file) {
- inode = file->f_mapping->host;
- spin_lock(&inode->i_lock);
- atomic_set(&inode->i_writecount, 1); /* allow writes again */
- spin_unlock(&inode->i_lock);
+ struct inode *inode = file->f_dentry->d_inode;
+ invalidate_inode_pages(inode->i_mapping);
fput(file);
}
}
@@ -708,26 +698,27 @@ static void bitmap_file_kick(struct bitmap *bitmap)
}
enum bitmap_page_attr {
- BITMAP_PAGE_DIRTY = 1, // there are set bits that need to be synced
- BITMAP_PAGE_CLEAN = 2, // there are bits that might need to be cleared
- BITMAP_PAGE_NEEDWRITE=4, // there are cleared bits that need to be synced
+ BITMAP_PAGE_DIRTY = 0, // there are set bits that need to be synced
+ BITMAP_PAGE_CLEAN = 1, // there are bits that might need to be cleared
+ BITMAP_PAGE_NEEDWRITE=2, // there are cleared bits that need to be synced
};
static inline void set_page_attr(struct bitmap *bitmap, struct page *page,
enum bitmap_page_attr attr)
{
- bitmap->filemap_attr[page->index] |= attr;
+ __set_bit((page->index<<2) + attr, bitmap->filemap_attr);
}
static inline void clear_page_attr(struct bitmap *bitmap, struct page *page,
enum bitmap_page_attr attr)
{
- bitmap->filemap_attr[page->index] &= ~attr;
+ __clear_bit((page->index<<2) + attr, bitmap->filemap_attr);
}
-static inline unsigned long get_page_attr(struct bitmap *bitmap, struct page *page)
+static inline unsigned long test_page_attr(struct bitmap *bitmap, struct page *page,
+ enum bitmap_page_attr attr)
{
- return bitmap->filemap_attr[page->index];
+ return test_bit((page->index<<2) + attr, bitmap->filemap_attr);
}
/*
@@ -751,11 +742,6 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
page = filemap_get_page(bitmap, chunk);
bit = file_page_offset(chunk);
-
- /* make sure the page stays cached until it gets written out */
- if (! (get_page_attr(bitmap, page) & BITMAP_PAGE_DIRTY))
- get_page(page);
-
/* set the bit */
kaddr = kmap_atomic(page, KM_USER0);
if (bitmap->flags & BITMAP_HOSTENDIAN)
@@ -775,7 +761,8 @@ static void bitmap_file_set_bit(struct bitmap *bitmap, sector_t block)
* sync the dirty pages of the bitmap file to disk */
int bitmap_unplug(struct bitmap *bitmap)
{
- unsigned long i, attr, flags;
+ unsigned long i, flags;
+ int dirty, need_write;
struct page *page;
int wait = 0;
int err;
@@ -792,35 +779,26 @@ int bitmap_unplug(struct bitmap *bitmap)
return 0;
}
page = bitmap->filemap[i];
- attr = get_page_attr(bitmap, page);
+ dirty = test_page_attr(bitmap, page, BITMAP_PAGE_DIRTY);
+ need_write = test_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE);
clear_page_attr(bitmap, page, BITMAP_PAGE_DIRTY);
clear_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE);
- if ((attr & BITMAP_PAGE_DIRTY))
+ if (dirty)
wait = 1;
spin_unlock_irqrestore(&bitmap->lock, flags);
- if (attr & (BITMAP_PAGE_DIRTY | BITMAP_PAGE_NEEDWRITE)) {
+ if (dirty | need_write)
err = write_page(bitmap, page, 0);
- if (err == -EAGAIN) {
- if (attr & BITMAP_PAGE_DIRTY)
- err = write_page(bitmap, page, 1);
- else
- err = 0;
- }
- if (err)
- return 1;
- }
}
if (wait) { /* if any writes were performed, we need to wait on them */
- if (bitmap->file) {
- spin_lock_irq(&bitmap->write_lock);
- wait_event_lock_irq(bitmap->write_wait,
- list_empty(&bitmap->complete_pages), bitmap->write_lock,
- wake_up_process(bitmap->writeback_daemon->tsk));
- spin_unlock_irq(&bitmap->write_lock);
- } else
+ if (bitmap->file)
+ wait_event(bitmap->write_wait,
+ atomic_read(&bitmap->pending_writes)==0);
+ else
md_super_wait(bitmap->mddev);
}
+ if (bitmap->flags & BITMAP_WRITE_ERROR)
+ bitmap_file_kick(bitmap);
return 0;
}
@@ -842,7 +820,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
struct page *page = NULL, *oldpage = NULL;
unsigned long num_pages, bit_cnt = 0;
struct file *file;
- unsigned long bytes, offset, dummy;
+ unsigned long bytes, offset;
int outofdate;
int ret = -ENOSPC;
void *paddr;
@@ -879,7 +857,12 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
if (!bitmap->filemap)
goto out;
- bitmap->filemap_attr = kzalloc(sizeof(long) * num_pages, GFP_KERNEL);
+ /* We need 4 bits per page, rounded up to a multiple of sizeof(unsigned long) */
+ bitmap->filemap_attr = kzalloc(
+ (((num_pages*4/8)+sizeof(unsigned long)-1)
+ /sizeof(unsigned long))
+ *sizeof(unsigned long),
+ GFP_KERNEL);
if (!bitmap->filemap_attr)
goto out;
@@ -890,7 +873,12 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
index = file_page_index(i);
bit = file_page_offset(i);
if (index != oldindex) { /* this is a new page, read it in */
+ int count;
/* unmap the old page, we're done with it */
+ if (index == num_pages-1)
+ count = bytes - index * PAGE_SIZE;
+ else
+ count = PAGE_SIZE;
if (index == 0) {
/*
* if we're here then the superblock page
@@ -900,7 +888,7 @@ static int bitmap_init_from_disk(struct bitmap *bitmap, sector_t start)
page = bitmap->sb_page;
offset = sizeof(bitmap_super_t);
} else if (file) {
- page = read_page(file, index, &dummy);
+ page = read_page(file, index, bitmap, count);
offset = 0;
} else {
page = read_sb_page(bitmap->mddev, bitmap->offset, index);
@@ -971,12 +959,11 @@ void bitmap_write_all(struct bitmap *bitmap)
/* We don't actually write all bitmap blocks here,
* just flag them as needing to be written
*/
+ int i;
- unsigned long chunks = bitmap->chunks;
- unsigned long bytes = (chunks+7)/8 + sizeof(bitmap_super_t);
- unsigned long num_pages = (bytes + PAGE_SIZE-1) / PAGE_SIZE;
- while (num_pages--)
- bitmap->filemap_attr[num_pages] |= BITMAP_PAGE_NEEDWRITE;
+ for (i=0; i < bitmap->file_pages; i++)
+ set_page_attr(bitmap, bitmap->filemap[i],
+ BITMAP_PAGE_NEEDWRITE);
}
@@ -1007,7 +994,6 @@ int bitmap_daemon_work(struct bitmap *bitmap)
struct page *page = NULL, *lastpage = NULL;
int err = 0;
int blocks;
- int attr;
void *paddr;
if (bitmap == NULL)
@@ -1029,43 +1015,34 @@ int bitmap_daemon_work(struct bitmap *bitmap)
if (page != lastpage) {
/* skip this page unless it's marked as needing cleaning */
- if (!((attr=get_page_attr(bitmap, page)) & BITMAP_PAGE_CLEAN)) {
- if (attr & BITMAP_PAGE_NEEDWRITE) {
- get_page(page);
+ if (!test_page_attr(bitmap, page, BITMAP_PAGE_CLEAN)) {
+ int need_write = test_page_attr(bitmap, page,
+ BITMAP_PAGE_NEEDWRITE);
+ if (need_write)
clear_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE);
- }
+
spin_unlock_irqrestore(&bitmap->lock, flags);
- if (attr & BITMAP_PAGE_NEEDWRITE) {
+ if (need_write) {
switch (write_page(bitmap, page, 0)) {
- case -EAGAIN:
- set_page_attr(bitmap, page, BITMAP_PAGE_NEEDWRITE);
- break;
case 0:
break;
default:
bitmap_file_kick(bitmap);
}
- put_page(page);
}
continue;
}
/* grab the new page, sync and release the old */
- get_page(page);
if (lastpage != NULL) {
- if (get_page_attr(bitmap, lastpage) & BITMAP_PAGE_NEEDWRITE) {
+ if (test_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE)) {
clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
err = write_page(bitmap, lastpage, 0);
- if (err == -EAGAIN) {
- err = 0;
- set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
- }
} else {
set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
}
- put_page(lastpage);
if (err)
bitmap_file_kick(bitmap);
} else
@@ -1107,131 +1084,19 @@ int bitmap_daemon_work(struct bitmap *bitmap)
/* now sync the final page */
if (lastpage != NULL) {
spin_lock_irqsave(&bitmap->lock, flags);
- if (get_page_attr(bitmap, lastpage) &BITMAP_PAGE_NEEDWRITE) {
+ if (test_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE)) {
clear_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
err = write_page(bitmap, lastpage, 0);
- if (err == -EAGAIN) {
- set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
- err = 0;
- }
} else {
set_page_attr(bitmap, lastpage, BITMAP_PAGE_NEEDWRITE);
spin_unlock_irqrestore(&bitmap->lock, flags);
}
-
- put_page(lastpage);
}
return err;
}
-static void daemon_exit(struct bitmap *bitmap, mdk_thread_t **daemon)
-{
- mdk_thread_t *dmn;
- unsigned long flags;
-
- /* if no one is waiting on us, we'll free the md thread struct
- * and exit, otherwise we let the waiter clean things up */
- spin_lock_irqsave(&bitmap->lock, flags);
- if ((dmn = *daemon)) { /* no one is waiting, cleanup and exit */
- *daemon = NULL;
- spin_unlock_irqrestore(&bitmap->lock, flags);
- kfree(dmn);
- complete_and_exit(NULL, 0); /* do_exit not exported */
- }
- spin_unlock_irqrestore(&bitmap->lock, flags);
-}
-
-static void bitmap_writeback_daemon(mddev_t *mddev)
-{
- struct bitmap *bitmap = mddev->bitmap;
- struct page *page;
- struct page_list *item;
- int err = 0;
-
- if (signal_pending(current)) {
- printk(KERN_INFO
- "%s: bitmap writeback daemon got signal, exiting...\n",
- bmname(bitmap));
- err = -EINTR;
- goto out;
- }
- if (bitmap == NULL)
- /* about to be stopped. */
- return;
-
- PRINTK("%s: bitmap writeback daemon woke up...\n", bmname(bitmap));
- /* wait on bitmap page writebacks */
- while ((item = dequeue_page(bitmap))) {
- page = item->page;
- mempool_free(item, bitmap->write_pool);
- PRINTK("wait on page writeback: %p\n", page);
- wait_on_page_writeback(page);
- PRINTK("finished page writeback: %p\n", page);
-
- err = PageError(page);
- put_page(page);
- if (err) {
- printk(KERN_WARNING "%s: bitmap file writeback "
- "failed (page %lu): %d\n",
- bmname(bitmap), page->index, err);
- bitmap_file_kick(bitmap);
- goto out;
- }
- }
- out:
- wake_up(&bitmap->write_wait);
- if (err) {
- printk(KERN_INFO "%s: bitmap writeback daemon exiting (%d)\n",
- bmname(bitmap), err);
- daemon_exit(bitmap, &bitmap->writeback_daemon);
- }
-}
-
-static mdk_thread_t *bitmap_start_daemon(struct bitmap *bitmap,
- void (*func)(mddev_t *), char *name)
-{
- mdk_thread_t *daemon;
- char namebuf[32];
-
-#ifdef INJECT_FATAL_FAULT_2
- daemon = NULL;
-#else
- sprintf(namebuf, "%%s_%s", name);
- daemon = md_register_thread(func, bitmap->mddev, namebuf);
-#endif
- if (!daemon) {
- printk(KERN_ERR "%s: failed to start bitmap daemon\n",
- bmname(bitmap));
- return ERR_PTR(-ECHILD);
- }
-
- md_wakeup_thread(daemon); /* start it running */
-
- PRINTK("%s: %s daemon (pid %d) started...\n",
- bmname(bitmap), name, daemon->tsk->pid);
-
- return daemon;
-}
-
-static void bitmap_stop_daemon(struct bitmap *bitmap)
-{
- /* the daemon can't stop itself... it'll just exit instead... */
- if (bitmap->writeback_daemon && ! IS_ERR(bitmap->writeback_daemon) &&
- current->pid != bitmap->writeback_daemon->tsk->pid) {
- mdk_thread_t *daemon;
- unsigned long flags;
-
- spin_lock_irqsave(&bitmap->lock, flags);
- daemon = bitmap->writeback_daemon;
- bitmap->writeback_daemon = NULL;
- spin_unlock_irqrestore(&bitmap->lock, flags);
- if (daemon && ! IS_ERR(daemon))
- md_unregister_thread(daemon); /* destroy the thread */
- }
-}
-
static bitmap_counter_t *bitmap_get_counter(struct bitmap *bitmap,
sector_t offset, int *blocks,
int create)
@@ -1500,8 +1365,6 @@ static void bitmap_free(struct bitmap *bitmap)
/* free all allocated memory */
- mempool_destroy(bitmap->write_pool);
-
if (bp) /* deallocate the page memory */
for (k = 0; k < pages; k++)
if (bp[k].map && !bp[k].hijacked)
@@ -1549,20 +1412,20 @@ int bitmap_create(mddev_t *mddev)
return -ENOMEM;
spin_lock_init(&bitmap->lock);
- bitmap->mddev = mddev;
-
- spin_lock_init(&bitmap->write_lock);
- INIT_LIST_HEAD(&bitmap->complete_pages);
+ atomic_set(&bitmap->pending_writes, 0);
init_waitqueue_head(&bitmap->write_wait);
- bitmap->write_pool = mempool_create_kmalloc_pool(WRITE_POOL_SIZE,
- sizeof(struct page_list));
- err = -ENOMEM;
- if (!bitmap->write_pool)
- goto error;
+
+ bitmap->mddev = mddev;
bitmap->file = file;
bitmap->offset = mddev->bitmap_offset;
- if (file) get_file(file);
+ if (file) {
+ get_file(file);
+ do_sync_file_range(file, 0, LLONG_MAX,
+ SYNC_FILE_RANGE_WAIT_BEFORE |
+ SYNC_FILE_RANGE_WRITE |
+ SYNC_FILE_RANGE_WAIT_AFTER);
+ }
/* read superblock from bitmap file (this sets bitmap->chunksize) */
err = bitmap_read_sb(bitmap);
if (err)
@@ -1594,8 +1457,6 @@ int bitmap_create(mddev_t *mddev)
if (!bitmap->bp)
goto error;
- bitmap->flags |= BITMAP_ACTIVE;
-
/* now that we have some pages available, initialize the in-memory
* bitmap from the on-disk bitmap */
start = 0;
@@ -1613,15 +1474,6 @@ int bitmap_create(mddev_t *mddev)
mddev->bitmap = bitmap;
- if (file)
- /* kick off the bitmap writeback daemon */
- bitmap->writeback_daemon =
- bitmap_start_daemon(bitmap,
- bitmap_writeback_daemon,
- "bitmap_wb");
-
- if (IS_ERR(bitmap->writeback_daemon))
- return PTR_ERR(bitmap->writeback_daemon);
mddev->thread->timeout = bitmap->daemon_sleep * HZ;
return bitmap_update_sb(bitmap);
@@ -1638,4 +1490,3 @@ EXPORT_SYMBOL(bitmap_start_sync);
EXPORT_SYMBOL(bitmap_end_sync);
EXPORT_SYMBOL(bitmap_unplug);
EXPORT_SYMBOL(bitmap_close_sync);
-EXPORT_SYMBOL(bitmap_daemon_work);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 61a590bb624..6022ed12a79 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -20,7 +20,7 @@
#include "dm.h"
-#define PFX "crypt: "
+#define DM_MSG_PREFIX "crypt"
/*
* per bio private data
@@ -125,19 +125,19 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
u8 *salt;
if (opts == NULL) {
- ti->error = PFX "Digest algorithm missing for ESSIV mode";
+ ti->error = "Digest algorithm missing for ESSIV mode";
return -EINVAL;
}
/* Hash the cipher key with the given hash algorithm */
hash_tfm = crypto_alloc_tfm(opts, CRYPTO_TFM_REQ_MAY_SLEEP);
if (hash_tfm == NULL) {
- ti->error = PFX "Error initializing ESSIV hash";
+ ti->error = "Error initializing ESSIV hash";
return -EINVAL;
}
if (crypto_tfm_alg_type(hash_tfm) != CRYPTO_ALG_TYPE_DIGEST) {
- ti->error = PFX "Expected digest algorithm for ESSIV hash";
+ ti->error = "Expected digest algorithm for ESSIV hash";
crypto_free_tfm(hash_tfm);
return -EINVAL;
}
@@ -145,7 +145,7 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
saltsize = crypto_tfm_alg_digestsize(hash_tfm);
salt = kmalloc(saltsize, GFP_KERNEL);
if (salt == NULL) {
- ti->error = PFX "Error kmallocing salt storage in ESSIV";
+ ti->error = "Error kmallocing salt storage in ESSIV";
crypto_free_tfm(hash_tfm);
return -ENOMEM;
}
@@ -159,20 +159,20 @@ static int crypt_iv_essiv_ctr(struct crypt_config *cc, struct dm_target *ti,
CRYPTO_TFM_MODE_ECB |
CRYPTO_TFM_REQ_MAY_SLEEP);
if (essiv_tfm == NULL) {
- ti->error = PFX "Error allocating crypto tfm for ESSIV";
+ ti->error = "Error allocating crypto tfm for ESSIV";
kfree(salt);
return -EINVAL;
}
if (crypto_tfm_alg_blocksize(essiv_tfm)
!= crypto_tfm_alg_ivsize(cc->tfm)) {
- ti->error = PFX "Block size of ESSIV cipher does "
+ ti->error = "Block size of ESSIV cipher does "
"not match IV size of block cipher";
crypto_free_tfm(essiv_tfm);
kfree(salt);
return -EINVAL;
}
if (crypto_cipher_setkey(essiv_tfm, salt, saltsize) < 0) {
- ti->error = PFX "Failed to set key for ESSIV cipher";
+ ti->error = "Failed to set key for ESSIV cipher";
crypto_free_tfm(essiv_tfm);
kfree(salt);
return -EINVAL;
@@ -521,7 +521,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
unsigned long long tmpll;
if (argc != 5) {
- ti->error = PFX "Not enough arguments";
+ ti->error = "Not enough arguments";
return -EINVAL;
}
@@ -532,21 +532,21 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
ivmode = strsep(&ivopts, ":");
if (tmp)
- DMWARN(PFX "Unexpected additional cipher options");
+ DMWARN("Unexpected additional cipher options");
key_size = strlen(argv[1]) >> 1;
cc = kmalloc(sizeof(*cc) + key_size * sizeof(u8), GFP_KERNEL);
if (cc == NULL) {
ti->error =
- PFX "Cannot allocate transparent encryption context";
+ "Cannot allocate transparent encryption context";
return -ENOMEM;
}
cc->key_size = key_size;
if ((!key_size && strcmp(argv[1], "-") != 0) ||
(key_size && crypt_decode_key(cc->key, argv[1], key_size) < 0)) {
- ti->error = PFX "Error decoding key";
+ ti->error = "Error decoding key";
goto bad1;
}
@@ -562,22 +562,22 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
else if (strcmp(chainmode, "ecb") == 0)
crypto_flags = CRYPTO_TFM_MODE_ECB;
else {
- ti->error = PFX "Unknown chaining mode";
+ ti->error = "Unknown chaining mode";
goto bad1;
}
if (crypto_flags != CRYPTO_TFM_MODE_ECB && !ivmode) {
- ti->error = PFX "This chaining mode requires an IV mechanism";
+ ti->error = "This chaining mode requires an IV mechanism";
goto bad1;
}
tfm = crypto_alloc_tfm(cipher, crypto_flags | CRYPTO_TFM_REQ_MAY_SLEEP);
if (!tfm) {
- ti->error = PFX "Error allocating crypto tfm";
+ ti->error = "Error allocating crypto tfm";
goto bad1;
}
if (crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER) {
- ti->error = PFX "Expected cipher algorithm";
+ ti->error = "Expected cipher algorithm";
goto bad2;
}
@@ -595,7 +595,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
else if (strcmp(ivmode, "essiv") == 0)
cc->iv_gen_ops = &crypt_iv_essiv_ops;
else {
- ti->error = PFX "Invalid IV mode";
+ ti->error = "Invalid IV mode";
goto bad2;
}
@@ -610,7 +610,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
else {
cc->iv_size = 0;
if (cc->iv_gen_ops) {
- DMWARN(PFX "Selected cipher does not support IVs");
+ DMWARN("Selected cipher does not support IVs");
if (cc->iv_gen_ops->dtr)
cc->iv_gen_ops->dtr(cc);
cc->iv_gen_ops = NULL;
@@ -619,36 +619,36 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
cc->io_pool = mempool_create_slab_pool(MIN_IOS, _crypt_io_pool);
if (!cc->io_pool) {
- ti->error = PFX "Cannot allocate crypt io mempool";
+ ti->error = "Cannot allocate crypt io mempool";
goto bad3;
}
cc->page_pool = mempool_create_page_pool(MIN_POOL_PAGES, 0);
if (!cc->page_pool) {
- ti->error = PFX "Cannot allocate page mempool";
+ ti->error = "Cannot allocate page mempool";
goto bad4;
}
if (tfm->crt_cipher.cit_setkey(tfm, cc->key, key_size) < 0) {
- ti->error = PFX "Error setting key";
+ ti->error = "Error setting key";
goto bad5;
}
if (sscanf(argv[2], "%llu", &tmpll) != 1) {
- ti->error = PFX "Invalid iv_offset sector";
+ ti->error = "Invalid iv_offset sector";
goto bad5;
}
cc->iv_offset = tmpll;
if (sscanf(argv[4], "%llu", &tmpll) != 1) {
- ti->error = PFX "Invalid device sector";
+ ti->error = "Invalid device sector";
goto bad5;
}
cc->start = tmpll;
if (dm_get_device(ti, argv[3], cc->start, ti->len,
dm_table_get_mode(ti->table), &cc->dev)) {
- ti->error = PFX "Device lookup failed";
+ ti->error = "Device lookup failed";
goto bad5;
}
@@ -657,7 +657,7 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
*(ivopts - 1) = ':';
cc->iv_mode = kmalloc(strlen(ivmode) + 1, GFP_KERNEL);
if (!cc->iv_mode) {
- ti->error = PFX "Error kmallocing iv_mode string";
+ ti->error = "Error kmallocing iv_mode string";
goto bad5;
}
strcpy(cc->iv_mode, ivmode);
@@ -918,13 +918,13 @@ static int __init dm_crypt_init(void)
_kcryptd_workqueue = create_workqueue("kcryptd");
if (!_kcryptd_workqueue) {
r = -ENOMEM;
- DMERR(PFX "couldn't create kcryptd");
+ DMERR("couldn't create kcryptd");
goto bad1;
}
r = dm_register_target(&crypt_target);
if (r < 0) {
- DMERR(PFX "register failed %d", r);
+ DMERR("register failed %d", r);
goto bad2;
}
@@ -942,7 +942,7 @@ static void __exit dm_crypt_exit(void)
int r = dm_unregister_target(&crypt_target);
if (r < 0)
- DMERR(PFX "unregister failed %d", r);
+ DMERR("unregister failed %d", r);
destroy_workqueue(_kcryptd_workqueue);
kmem_cache_destroy(_crypt_io_pool);
diff --git a/drivers/md/dm-emc.c b/drivers/md/dm-emc.c
index c7067674dcb..2a374ccb30d 100644
--- a/drivers/md/dm-emc.c
+++ b/drivers/md/dm-emc.c
@@ -12,6 +12,8 @@
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
+#define DM_MSG_PREFIX "multipath emc"
+
struct emc_handler {
spinlock_t lock;
@@ -66,7 +68,7 @@ static struct bio *get_failover_bio(struct path *path, unsigned data_size)
bio = bio_alloc(GFP_ATOMIC, 1);
if (!bio) {
- DMERR("dm-emc: get_failover_bio: bio_alloc() failed.");
+ DMERR("get_failover_bio: bio_alloc() failed.");
return NULL;
}
@@ -78,13 +80,13 @@ static struct bio *get_failover_bio(struct path *path, unsigned data_size)
page = alloc_page(GFP_ATOMIC);
if (!page) {
- DMERR("dm-emc: get_failover_bio: alloc_page() failed.");
+ DMERR("get_failover_bio: alloc_page() failed.");
bio_put(bio);
return NULL;
}
if (bio_add_page(bio, page, data_size, 0) != data_size) {
- DMERR("dm-emc: get_failover_bio: alloc_page() failed.");
+ DMERR("get_failover_bio: alloc_page() failed.");
__free_page(page);
bio_put(bio);
return NULL;
@@ -103,7 +105,7 @@ static struct request *get_failover_req(struct emc_handler *h,
/* FIXME: Figure out why it fails with GFP_ATOMIC. */
rq = blk_get_request(q, WRITE, __GFP_WAIT);
if (!rq) {
- DMERR("dm-emc: get_failover_req: blk_get_request failed");
+ DMERR("get_failover_req: blk_get_request failed");
return NULL;
}
@@ -160,7 +162,7 @@ static struct request *emc_trespass_get(struct emc_handler *h,
bio = get_failover_bio(path, data_size);
if (!bio) {
- DMERR("dm-emc: emc_trespass_get: no bio");
+ DMERR("emc_trespass_get: no bio");
return NULL;
}
@@ -173,7 +175,7 @@ static struct request *emc_trespass_get(struct emc_handler *h,
/* get request for block layer packet command */
rq = get_failover_req(h, bio, path);
if (!rq) {
- DMERR("dm-emc: emc_trespass_get: no rq");
+ DMERR("emc_trespass_get: no rq");
free_bio(bio);
return NULL;
}
@@ -200,18 +202,18 @@ static void emc_pg_init(struct hw_handler *hwh, unsigned bypassed,
* initial state passed into us and then get an update here.
*/
if (!q) {
- DMINFO("dm-emc: emc_pg_init: no queue");
+ DMINFO("emc_pg_init: no queue");
goto fail_path;
}
/* FIXME: The request should be pre-allocated. */
rq = emc_trespass_get(hwh->context, path);
if (!rq) {
- DMERR("dm-emc: emc_pg_init: no rq");
+ DMERR("emc_pg_init: no rq");
goto fail_path;
}
- DMINFO("dm-emc: emc_pg_init: sending switch-over command");
+ DMINFO("emc_pg_init: sending switch-over command");
elv_add_request(q, rq, ELEVATOR_INSERT_FRONT, 1);
return;
@@ -241,18 +243,18 @@ static int emc_create(struct hw_handler *hwh, unsigned argc, char **argv)
hr = 0;
short_trespass = 0;
} else if (argc != 2) {
- DMWARN("dm-emc hwhandler: incorrect number of arguments");
+ DMWARN("incorrect number of arguments");
return -EINVAL;
} else {
if ((sscanf(argv[0], "%u", &short_trespass) != 1)
|| (short_trespass > 1)) {
- DMWARN("dm-emc: invalid trespass mode selected");
+ DMWARN("invalid trespass mode selected");
return -EINVAL;
}
if ((sscanf(argv[1], "%u", &hr) != 1)
|| (hr > 1)) {
- DMWARN("dm-emc: invalid honor reservation flag selected");
+ DMWARN("invalid honor reservation flag selected");
return -EINVAL;
}
}
@@ -264,14 +266,14 @@ static int emc_create(struct hw_handler *hwh, unsigned argc, char **argv)
hwh->context = h;
if ((h->short_trespass = short_trespass))
- DMWARN("dm-emc: short trespass command will be send");
+ DMWARN("short trespass command will be send");
else
- DMWARN("dm-emc: long trespass command will be send");
+ DMWARN("long trespass command will be send");
if ((h->hr = hr))
- DMWARN("dm-emc: honor reservation bit will be set");
+ DMWARN("honor reservation bit will be set");
else
- DMWARN("dm-emc: honor reservation bit will not be set (default)");
+ DMWARN("honor reservation bit will not be set (default)");
return 0;
}
@@ -336,9 +338,9 @@ static int __init dm_emc_init(void)
int r = dm_register_hw_handler(&emc_hwh);
if (r < 0)
- DMERR("emc: register failed %d", r);
+ DMERR("register failed %d", r);
- DMINFO("dm-emc version 0.0.3 loaded");
+ DMINFO("version 0.0.3 loaded");
return r;
}
@@ -348,7 +350,7 @@ static void __exit dm_emc_exit(void)
int r = dm_unregister_hw_handler(&emc_hwh);
if (r < 0)
- DMERR("emc: unregister failed %d", r);
+ DMERR("unregister failed %d", r);
}
module_init(dm_emc_init);
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c
index cc07bbebbb1..d12379b5cdb 100644
--- a/drivers/md/dm-exception-store.c
+++ b/drivers/md/dm-exception-store.c
@@ -16,6 +16,8 @@
#include <linux/vmalloc.h>
#include <linux/slab.h>
+#define DM_MSG_PREFIX "snapshots"
+
/*-----------------------------------------------------------------
* Persistent snapshots, by persistent we mean that the snapshot
* will survive a reboot.
@@ -91,7 +93,6 @@ struct pstore {
struct dm_snapshot *snap; /* up pointer to my snapshot */
int version;
int valid;
- uint32_t chunk_size;
uint32_t exceptions_per_area;
/*
@@ -133,7 +134,7 @@ static int alloc_area(struct pstore *ps)
int r = -ENOMEM;
size_t len;
- len = ps->chunk_size << SECTOR_SHIFT;
+ len = ps->snap->chunk_size << SECTOR_SHIFT;
/*
* Allocate the chunk_size block of memory that will hold
@@ -160,8 +161,8 @@ static int chunk_io(struct pstore *ps, uint32_t chunk, int rw)
unsigned long bits;
where.bdev = ps->snap->cow->bdev;
- where.sector = ps->chunk_size * chunk;
- where.count = ps->chunk_size;
+ where.sector = ps->snap->chunk_size * chunk;
+ where.count = ps->snap->chunk_size;
return dm_io_sync_vm(1, &where, rw, ps->area, &bits);
}
@@ -188,7 +189,7 @@ static int area_io(struct pstore *ps, uint32_t area, int rw)
static int zero_area(struct pstore *ps, uint32_t area)
{
- memset(ps->area, 0, ps->chunk_size << SECTOR_SHIFT);
+ memset(ps->area, 0, ps->snap->chunk_size << SECTOR_SHIFT);
return area_io(ps, area, WRITE);
}
@@ -196,6 +197,7 @@ static int read_header(struct pstore *ps, int *new_snapshot)
{
int r;
struct disk_header *dh;
+ chunk_t chunk_size;
r = chunk_io(ps, 0, READ);
if (r)
@@ -210,8 +212,29 @@ static int read_header(struct pstore *ps, int *new_snapshot)
*new_snapshot = 0;
ps->valid = le32_to_cpu(dh->valid);
ps->version = le32_to_cpu(dh->version);
- ps->chunk_size = le32_to_cpu(dh->chunk_size);
-
+ chunk_size = le32_to_cpu(dh->chunk_size);
+ if (ps->snap->chunk_size != chunk_size) {
+ DMWARN("chunk size %llu in device metadata overrides "
+ "table chunk size of %llu.",
+ (unsigned long long)chunk_size,
+ (unsigned long long)ps->snap->chunk_size);
+
+ /* We had a bogus chunk_size. Fix stuff up. */
+ dm_io_put(sectors_to_pages(ps->snap->chunk_size));
+ free_area(ps);
+
+ ps->snap->chunk_size = chunk_size;
+ ps->snap->chunk_mask = chunk_size - 1;
+ ps->snap->chunk_shift = ffs(chunk_size) - 1;
+
+ r = alloc_area(ps);
+ if (r)
+ return r;
+
+ r = dm_io_get(sectors_to_pages(chunk_size));
+ if (r)
+ return r;
+ }
} else {
DMWARN("Invalid/corrupt snapshot");
r = -ENXIO;
@@ -224,13 +247,13 @@ static int write_header(struct pstore *ps)
{
struct disk_header *dh;
- memset(ps->area, 0, ps->chunk_size << SECTOR_SHIFT);
+ memset(ps->area, 0, ps->snap->chunk_size << SECTOR_SHIFT);
dh = (struct disk_header *) ps->area;
dh->magic = cpu_to_le32(SNAP_MAGIC);
dh->valid = cpu_to_le32(ps->valid);
dh->version = cpu_to_le32(ps->version);
- dh->chunk_size = cpu_to_le32(ps->chunk_size);
+ dh->chunk_size = cpu_to_le32(ps->snap->chunk_size);
return chunk_io(ps, 0, WRITE);
}
@@ -365,7 +388,7 @@ static void persistent_destroy(struct exception_store *store)
{
struct pstore *ps = get_info(store);
- dm_io_put(sectors_to_pages(ps->chunk_size));
+ dm_io_put(sectors_to_pages(ps->snap->chunk_size));
vfree(ps->callbacks);
free_area(ps);
kfree(ps);
@@ -384,6 +407,16 @@ static int persistent_read_metadata(struct exception_store *store)
return r;
/*
+ * Now we know correct chunk_size, complete the initialisation.
+ */
+ ps->exceptions_per_area = (ps->snap->chunk_size << SECTOR_SHIFT) /
+ sizeof(struct disk_exception);
+ ps->callbacks = dm_vcalloc(ps->exceptions_per_area,
+ sizeof(*ps->callbacks));
+ if (!ps->callbacks)
+ return -ENOMEM;
+
+ /*
* Do we need to setup a new snapshot ?
*/
if (new_snapshot) {
@@ -533,9 +566,6 @@ int dm_create_persistent(struct exception_store *store, uint32_t chunk_size)
ps->snap = store->snap;
ps->valid = 1;
ps->version = SNAPSHOT_DISK_VERSION;
- ps->chunk_size = chunk_size;
- ps->exceptions_per_area = (chunk_size << SECTOR_SHIFT) /
- sizeof(struct disk_exception);
ps->next_free = 2; /* skipping the header and first area */
ps->current_committed = 0;
@@ -543,18 +573,9 @@ int dm_create_persistent(struct exception_store *store, uint32_t chunk_size)
if (r)
goto bad;
- /*
- * Allocate space for all the callbacks.
- */
ps->callback_count = 0;
atomic_set(&ps->pending_count, 0);
- ps->callbacks = dm_vcalloc(ps->exceptions_per_area,
- sizeof(*ps->callbacks));
-
- if (!ps->callbacks) {
- r = -ENOMEM;
- goto bad;
- }
+ ps->callbacks = NULL;
store->destroy = persistent_destroy;
store->read_metadata = persistent_read_metadata;
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 8edd6435414..3edb3477f98 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
- * Copyright (C) 2004 - 2005 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004 - 2006 Red Hat, Inc. All rights reserved.
*
* This file is released under the GPL.
*/
@@ -19,6 +19,7 @@
#include <asm/uaccess.h>
+#define DM_MSG_PREFIX "ioctl"
#define DM_DRIVER_EMAIL "dm-devel@redhat.com"
/*-----------------------------------------------------------------
@@ -48,7 +49,7 @@ struct vers_iter {
static struct list_head _name_buckets[NUM_BUCKETS];
static struct list_head _uuid_buckets[NUM_BUCKETS];
-static void dm_hash_remove_all(void);
+static void dm_hash_remove_all(int keep_open_devices);
/*
* Guards access to both hash tables.
@@ -73,7 +74,7 @@ static int dm_hash_init(void)
static void dm_hash_exit(void)
{
- dm_hash_remove_all();
+ dm_hash_remove_all(0);
devfs_remove(DM_DIR);
}
@@ -102,8 +103,10 @@ static struct hash_cell *__get_name_cell(const char *str)
unsigned int h = hash_str(str);
list_for_each_entry (hc, _name_buckets + h, name_list)
- if (!strcmp(hc->name, str))
+ if (!strcmp(hc->name, str)) {
+ dm_get(hc->md);
return hc;
+ }
return NULL;
}
@@ -114,8 +117,10 @@ static struct hash_cell *__get_uuid_cell(const char *str)
unsigned int h = hash_str(str);
list_for_each_entry (hc, _uuid_buckets + h, uuid_list)
- if (!strcmp(hc->uuid, str))
+ if (!strcmp(hc->uuid, str)) {
+ dm_get(hc->md);
return hc;
+ }
return NULL;
}
@@ -191,7 +196,7 @@ static int unregister_with_devfs(struct hash_cell *hc)
*/
static int dm_hash_insert(const char *name, const char *uuid, struct mapped_device *md)
{
- struct hash_cell *cell;
+ struct hash_cell *cell, *hc;
/*
* Allocate the new cells.
@@ -204,14 +209,19 @@ static int dm_hash_insert(const char *name, const char *uuid, struct mapped_devi
* Insert the cell into both hash tables.
*/
down_write(&_hash_lock);
- if (__get_name_cell(name))
+ hc = __get_name_cell(name);
+ if (hc) {
+ dm_put(hc->md);
goto bad;
+ }
list_add(&cell->name_list, _name_buckets + hash_str(name));
if (uuid) {
- if (__get_uuid_cell(uuid)) {
+ hc = __get_uuid_cell(uuid);
+ if (hc) {
list_del(&cell->name_list);
+ dm_put(hc->md);
goto bad;
}
list_add(&cell->uuid_list, _uuid_buckets + hash_str(uuid));
@@ -251,19 +261,41 @@ static void __hash_remove(struct hash_cell *hc)
free_cell(hc);
}
-static void dm_hash_remove_all(void)
+static void dm_hash_remove_all(int keep_open_devices)
{
- int i;
+ int i, dev_skipped, dev_removed;
struct hash_cell *hc;
struct list_head *tmp, *n;
down_write(&_hash_lock);
+
+retry:
+ dev_skipped = dev_removed = 0;
for (i = 0; i < NUM_BUCKETS; i++) {
list_for_each_safe (tmp, n, _name_buckets + i) {
hc = list_entry(tmp, struct hash_cell, name_list);
+
+ if (keep_open_devices &&
+ dm_lock_for_deletion(hc->md)) {
+ dev_skipped++;
+ continue;
+ }
__hash_remove(hc);
+ dev_removed = 1;
}
}
+
+ /*
+ * Some mapped devices may be using other mapped devices, so if any
+ * still exist, repeat until we make no further progress.
+ */
+ if (dev_skipped) {
+ if (dev_removed)
+ goto retry;
+
+ DMWARN("remove_all left %d open device(s)", dev_skipped);
+ }
+
up_write(&_hash_lock);
}
@@ -289,6 +321,7 @@ static int dm_hash_rename(const char *old, const char *new)
if (hc) {
DMWARN("asked to rename to an already existing name %s -> %s",
old, new);
+ dm_put(hc->md);
up_write(&_hash_lock);
kfree(new_name);
return -EBUSY;
@@ -328,6 +361,7 @@ static int dm_hash_rename(const char *old, const char *new)
dm_table_put(table);
}
+ dm_put(hc->md);
up_write(&_hash_lock);
kfree(old_name);
return 0;
@@ -344,7 +378,7 @@ typedef int (*ioctl_fn)(struct dm_ioctl *param, size_t param_size);
static int remove_all(struct dm_ioctl *param, size_t param_size)
{
- dm_hash_remove_all();
+ dm_hash_remove_all(1);
param->data_size = 0;
return 0;
}
@@ -524,7 +558,6 @@ static int __dev_status(struct mapped_device *md, struct dm_ioctl *param)
{
struct gendisk *disk = dm_disk(md);
struct dm_table *table;
- struct block_device *bdev;
param->flags &= ~(DM_SUSPEND_FLAG | DM_READONLY_FLAG |
DM_ACTIVE_PRESENT_FLAG);
@@ -534,20 +567,12 @@ static int __dev_status(struct mapped_device *md, struct dm_ioctl *param)
param->dev = huge_encode_dev(MKDEV(disk->major, disk->first_minor));
- if (!(param->flags & DM_SKIP_BDGET_FLAG)) {
- bdev = bdget_disk(disk, 0);
- if (!bdev)
- return -ENXIO;
-
- /*
- * Yes, this will be out of date by the time it gets back
- * to userland, but it is still very useful for
- * debugging.
- */
- param->open_count = bdev->bd_openers;
- bdput(bdev);
- } else
- param->open_count = -1;
+ /*
+ * Yes, this will be out of date by the time it gets back
+ * to userland, but it is still very useful for
+ * debugging.
+ */
+ param->open_count = dm_open_count(md);
if (disk->policy)
param->flags |= DM_READONLY_FLAG;
@@ -567,7 +592,7 @@ static int __dev_status(struct mapped_device *md, struct dm_ioctl *param)
static int dev_create(struct dm_ioctl *param, size_t param_size)
{
- int r;
+ int r, m = DM_ANY_MINOR;
struct mapped_device *md;
r = check_name(param->name);
@@ -575,10 +600,9 @@ static int dev_create(struct dm_ioctl *param, size_t param_size)
return r;
if (param->flags & DM_PERSISTENT_DEV_FLAG)
- r = dm_create_with_minor(MINOR(huge_decode_dev(param->dev)), &md);
- else
- r = dm_create(&md);
+ m = MINOR(huge_decode_dev(param->dev));
+ r = dm_create(m, &md);
if (r)
return r;
@@ -611,10 +635,8 @@ static struct hash_cell *__find_device_hash_cell(struct dm_ioctl *param)
return __get_name_cell(param->name);
md = dm_get_md(huge_decode_dev(param->dev));
- if (md) {
+ if (md)
mdptr = dm_get_mdptr(md);
- dm_put(md);
- }
return mdptr;
}
@@ -628,7 +650,6 @@ static struct mapped_device *find_device(struct dm_ioctl *param)
hc = __find_device_hash_cell(param);
if (hc) {
md = hc->md;
- dm_get(md);
/*
* Sneakily write in both the name and the uuid
@@ -653,6 +674,8 @@ static struct mapped_device *find_device(struct dm_ioctl *param)
static int dev_remove(struct dm_ioctl *param, size_t param_size)
{
struct hash_cell *hc;
+ struct mapped_device *md;
+ int r;
down_write(&_hash_lock);
hc = __find_device_hash_cell(param);
@@ -663,8 +686,22 @@ static int dev_remove(struct dm_ioctl *param, size_t param_size)
return -ENXIO;
}
+ md = hc->md;
+
+ /*
+ * Ensure the device is not open and nothing further can open it.
+ */
+ r = dm_lock_for_deletion(md);
+ if (r) {
+ DMWARN("unable to remove open device %s", hc->name);
+ up_write(&_hash_lock);
+ dm_put(md);
+ return r;
+ }
+
__hash_remove(hc);
up_write(&_hash_lock);
+ dm_put(md);
param->data_size = 0;
return 0;
}
@@ -790,7 +827,6 @@ static int do_resume(struct dm_ioctl *param)
}
md = hc->md;
- dm_get(md);
new_map = hc->new_map;
hc->new_map = NULL;
@@ -1078,6 +1114,7 @@ static int table_clear(struct dm_ioctl *param, size_t param_size)
{
int r;
struct hash_cell *hc;
+ struct mapped_device *md;
down_write(&_hash_lock);
@@ -1096,7 +1133,9 @@ static int table_clear(struct dm_ioctl *param, size_t param_size)
param->flags &= ~DM_INACTIVE_PRESENT_FLAG;
r = __dev_status(hc->md, param);
+ md = hc->md;
up_write(&_hash_lock);
+ dm_put(md);
return r;
}
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index daf586c0898..47b3c62bbdb 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -12,6 +12,8 @@
#include <linux/bio.h>
#include <linux/slab.h>
+#define DM_MSG_PREFIX "linear"
+
/*
* Linear: maps a linear range of a device.
*/
@@ -29,7 +31,7 @@ static int linear_ctr(struct dm_target *ti, unsigned int argc, char **argv)
unsigned long long tmp;
if (argc != 2) {
- ti->error = "dm-linear: Invalid argument count";
+ ti->error = "Invalid argument count";
return -EINVAL;
}
@@ -111,7 +113,7 @@ int __init dm_linear_init(void)
int r = dm_register_target(&linear_target);
if (r < 0)
- DMERR("linear: register failed %d", r);
+ DMERR("register failed %d", r);
return r;
}
@@ -121,5 +123,5 @@ void dm_linear_exit(void)
int r = dm_unregister_target(&linear_target);
if (r < 0)
- DMERR("linear: unregister failed %d", r);
+ DMERR("unregister failed %d", r);
}
diff --git a/drivers/md/dm-log.c b/drivers/md/dm-log.c
index d73779a4241..64b764bd02c 100644
--- a/drivers/md/dm-log.c
+++ b/drivers/md/dm-log.c
@@ -12,6 +12,8 @@
#include "dm-log.h"
#include "dm-io.h"
+#define DM_MSG_PREFIX "mirror log"
+
static LIST_HEAD(_log_types);
static DEFINE_SPINLOCK(_lock);
@@ -155,8 +157,6 @@ struct log_c {
struct io_region header_location;
struct log_header *disk_header;
-
- struct io_region bits_location;
};
/*
@@ -241,43 +241,21 @@ static inline int write_header(struct log_c *log)
}
/*----------------------------------------------------------------
- * Bits IO
- *--------------------------------------------------------------*/
-static int read_bits(struct log_c *log)
-{
- int r;
- unsigned long ebits;
-
- r = dm_io_sync_vm(1, &log->bits_location, READ,
- log->clean_bits, &ebits);
- if (r)
- return r;
-
- return 0;
-}
-
-static int write_bits(struct log_c *log)
-{
- unsigned long ebits;
- return dm_io_sync_vm(1, &log->bits_location, WRITE,
- log->clean_bits, &ebits);
-}
-
-/*----------------------------------------------------------------
* core log constructor/destructor
*
* argv contains region_size followed optionally by [no]sync
*--------------------------------------------------------------*/
#define BYTE_SHIFT 3
-static int core_ctr(struct dirty_log *log, struct dm_target *ti,
- unsigned int argc, char **argv)
+static int create_log_context(struct dirty_log *log, struct dm_target *ti,
+ unsigned int argc, char **argv,
+ struct dm_dev *dev)
{
enum sync sync = DEFAULTSYNC;
struct log_c *lc;
uint32_t region_size;
unsigned int region_count;
- size_t bitset_size;
+ size_t bitset_size, buf_size;
if (argc < 1 || argc > 2) {
DMWARN("wrong number of arguments to mirror log");
@@ -319,22 +297,53 @@ static int core_ctr(struct dirty_log *log, struct dm_target *ti,
* Work out how many "unsigned long"s we need to hold the bitset.
*/
bitset_size = dm_round_up(region_count,
- sizeof(unsigned long) << BYTE_SHIFT);
+ sizeof(*lc->clean_bits) << BYTE_SHIFT);
bitset_size >>= BYTE_SHIFT;
- lc->bitset_uint32_count = bitset_size / 4;
- lc->clean_bits = vmalloc(bitset_size);
- if (!lc->clean_bits) {
- DMWARN("couldn't allocate clean bitset");
- kfree(lc);
- return -ENOMEM;
+ lc->bitset_uint32_count = bitset_size / sizeof(*lc->clean_bits);
+
+ /*
+ * Disk log?
+ */
+ if (!dev) {
+ lc->clean_bits = vmalloc(bitset_size);
+ if (!lc->clean_bits) {
+ DMWARN("couldn't allocate clean bitset");
+ kfree(lc);
+ return -ENOMEM;
+ }
+ lc->disk_header = NULL;
+ } else {
+ lc->log_dev = dev;
+ lc->header_location.bdev = lc->log_dev->bdev;
+ lc->header_location.sector = 0;
+
+ /*
+ * Buffer holds both header and bitset.
+ */
+ buf_size = dm_round_up((LOG_OFFSET << SECTOR_SHIFT) +
+ bitset_size, ti->limits.hardsect_size);
+ lc->header_location.count = buf_size >> SECTOR_SHIFT;
+
+ lc->disk_header = vmalloc(buf_size);
+ if (!lc->disk_header) {
+ DMWARN("couldn't allocate disk log buffer");
+ kfree(lc);
+ return -ENOMEM;
+ }
+
+ lc->clean_bits = (void *)lc->disk_header +
+ (LOG_OFFSET << SECTOR_SHIFT);
}
+
memset(lc->clean_bits, -1, bitset_size);
lc->sync_bits = vmalloc(bitset_size);
if (!lc->sync_bits) {
DMWARN("couldn't allocate sync bitset");
- vfree(lc->clean_bits);
+ if (!dev)
+ vfree(lc->clean_bits);
+ vfree(lc->disk_header);
kfree(lc);
return -ENOMEM;
}
@@ -345,25 +354,40 @@ static int core_ctr(struct dirty_log *log, struct dm_target *ti,
if (!lc->recovering_bits) {
DMWARN("couldn't allocate sync bitset");
vfree(lc->sync_bits);
- vfree(lc->clean_bits);
+ if (!dev)
+ vfree(lc->clean_bits);
+ vfree(lc->disk_header);
kfree(lc);
return -ENOMEM;
}
memset(lc->recovering_bits, 0, bitset_size);
lc->sync_search = 0;
log->context = lc;
+
return 0;
}
-static void core_dtr(struct dirty_log *log)
+static int core_ctr(struct dirty_log *log, struct dm_target *ti,
+ unsigned int argc, char **argv)
+{
+ return create_log_context(log, ti, argc, argv, NULL);
+}
+
+static void destroy_log_context(struct log_c *lc)
{
- struct log_c *lc = (struct log_c *) log->context;
- vfree(lc->clean_bits);
vfree(lc->sync_bits);
vfree(lc->recovering_bits);
kfree(lc);
}
+static void core_dtr(struct dirty_log *log)
+{
+ struct log_c *lc = (struct log_c *) log->context;
+
+ vfree(lc->clean_bits);
+ destroy_log_context(lc);
+}
+
/*----------------------------------------------------------------
* disk log constructor/destructor
*
@@ -373,8 +397,6 @@ static int disk_ctr(struct dirty_log *log, struct dm_target *ti,
unsigned int argc, char **argv)
{
int r;
- size_t size;
- struct log_c *lc;
struct dm_dev *dev;
if (argc < 2 || argc > 3) {
@@ -387,49 +409,22 @@ static int disk_ctr(struct dirty_log *log, struct dm_target *ti,
if (r)
return r;
- r = core_ctr(log, ti, argc - 1, argv + 1);
+ r = create_log_context(log, ti, argc - 1, argv + 1, dev);
if (r) {
dm_put_device(ti, dev);
return r;
}
- lc = (struct log_c *) log->context;
- lc->log_dev = dev;
-
- /* setup the disk header fields */
- lc->header_location.bdev = lc->log_dev->bdev;
- lc->header_location.sector = 0;
- lc->header_location.count = 1;
-
- /*
- * We can't read less than this amount, even though we'll
- * not be using most of this space.
- */
- lc->disk_header = vmalloc(1 << SECTOR_SHIFT);
- if (!lc->disk_header)
- goto bad;
-
- /* setup the disk bitset fields */
- lc->bits_location.bdev = lc->log_dev->bdev;
- lc->bits_location.sector = LOG_OFFSET;
-
- size = dm_round_up(lc->bitset_uint32_count * sizeof(uint32_t),
- 1 << SECTOR_SHIFT);
- lc->bits_location.count = size >> SECTOR_SHIFT;
return 0;
-
- bad:
- dm_put_device(ti, lc->log_dev);
- core_dtr(log);
- return -ENOMEM;
}
static void disk_dtr(struct dirty_log *log)
{
struct log_c *lc = (struct log_c *) log->context;
+
dm_put_device(lc->ti, lc->log_dev);
vfree(lc->disk_header);
- core_dtr(log);
+ destroy_log_context(lc);
}
static int count_bits32(uint32_t *addr, unsigned size)
@@ -454,12 +449,7 @@ static int disk_resume(struct dirty_log *log)
if (r)
return r;
- /* read the bits */
- r = read_bits(lc);
- if (r)
- return r;
-
- /* set or clear any new bits */
+ /* set or clear any new bits -- device has grown */
if (lc->sync == NOSYNC)
for (i = lc->header.nr_regions; i < lc->region_count; i++)
/* FIXME: amazingly inefficient */
@@ -469,15 +459,14 @@ static int disk_resume(struct dirty_log *log)
/* FIXME: amazingly inefficient */
log_clear_bit(lc, lc->clean_bits, i);
+ /* clear any old bits -- device has shrunk */
+ for (i = lc->region_count; i % (sizeof(*lc->clean_bits) << BYTE_SHIFT); i++)
+ log_clear_bit(lc, lc->clean_bits, i);
+
/* copy clean across to sync */
memcpy(lc->sync_bits, lc->clean_bits, size);
lc->sync_count = count_bits32(lc->clean_bits, lc->bitset_uint32_count);
- /* write the bits */
- r = write_bits(lc);
- if (r)
- return r;
-
/* set the correct number of regions in the header */
lc->header.nr_regions = lc->region_count;
@@ -518,7 +507,7 @@ static int disk_flush(struct dirty_log *log)
if (!lc->touched)
return 0;
- r = write_bits(lc);
+ r = write_header(lc);
if (!r)
lc->touched = 0;
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 1816f30678e..217615b3322 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -21,6 +21,7 @@
#include <linux/workqueue.h>
#include <asm/atomic.h>
+#define DM_MSG_PREFIX "multipath"
#define MESG_STR(x) x, sizeof(x)
/* Path properties */
@@ -446,8 +447,6 @@ struct param {
char *error;
};
-#define ESTR(s) ("dm-multipath: " s)
-
static int read_param(struct param *param, char *str, unsigned *v, char **error)
{
if (!str ||
@@ -495,12 +494,12 @@ static int parse_path_selector(struct arg_set *as, struct priority_group *pg,
unsigned ps_argc;
static struct param _params[] = {
- {0, 1024, ESTR("invalid number of path selector args")},
+ {0, 1024, "invalid number of path selector args"},
};
pst = dm_get_path_selector(shift(as));
if (!pst) {
- ti->error = ESTR("unknown path selector type");
+ ti->error = "unknown path selector type";
return -EINVAL;
}
@@ -511,7 +510,7 @@ static int parse_path_selector(struct arg_set *as, struct priority_group *pg,
r = pst->create(&pg->ps, ps_argc, as->argv);
if (r) {
dm_put_path_selector(pst);
- ti->error = ESTR("path selector constructor failed");
+ ti->error = "path selector constructor failed";
return r;
}
@@ -529,7 +528,7 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
/* we need at least a path arg */
if (as->argc < 1) {
- ti->error = ESTR("no device given");
+ ti->error = "no device given";
return NULL;
}
@@ -540,7 +539,7 @@ static struct pgpath *parse_path(struct arg_set *as, struct path_selector *ps,
r = dm_get_device(ti, shift(as), ti->begin, ti->len,
dm_table_get_mode(ti->table), &p->path.dev);
if (r) {
- ti->error = ESTR("error getting device");
+ ti->error = "error getting device";
goto bad;
}
@@ -562,8 +561,8 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
struct dm_target *ti)
{
static struct param _params[] = {
- {1, 1024, ESTR("invalid number of paths")},
- {0, 1024, ESTR("invalid number of selector args")}
+ {1, 1024, "invalid number of paths"},
+ {0, 1024, "invalid number of selector args"}
};
int r;
@@ -572,13 +571,13 @@ static struct priority_group *parse_priority_group(struct arg_set *as,
if (as->argc < 2) {
as->argc = 0;
- ti->error = ESTR("not enough priority group aruments");
+ ti->error = "not enough priority group aruments";
return NULL;
}
pg = alloc_priority_group();
if (!pg) {
- ti->error = ESTR("couldn't allocate priority group");
+ ti->error = "couldn't allocate priority group";
return NULL;
}
pg->m = m;
@@ -633,7 +632,7 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m,
unsigned hw_argc;
static struct param _params[] = {
- {0, 1024, ESTR("invalid number of hardware handler args")},
+ {0, 1024, "invalid number of hardware handler args"},
};
r = read_param(_params, shift(as), &hw_argc, &ti->error);
@@ -645,14 +644,14 @@ static int parse_hw_handler(struct arg_set *as, struct multipath *m,
hwht = dm_get_hw_handler(shift(as));
if (!hwht) {
- ti->error = ESTR("unknown hardware handler type");
+ ti->error = "unknown hardware handler type";
return -EINVAL;
}
r = hwht->create(&m->hw_handler, hw_argc - 1, as->argv);
if (r) {
dm_put_hw_handler(hwht);
- ti->error = ESTR("hardware handler constructor failed");
+ ti->error = "hardware handler constructor failed";
return r;
}
@@ -669,7 +668,7 @@ static int parse_features(struct arg_set *as, struct multipath *m,
unsigned argc;
static struct param _params[] = {
- {0, 1, ESTR("invalid number of feature args")},
+ {0, 1, "invalid number of feature args"},
};
r = read_param(_params, shift(as), &argc, &ti->error);
@@ -692,8 +691,8 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
{
/* target parameters */
static struct param _params[] = {
- {1, 1024, ESTR("invalid number of priority groups")},
- {1, 1024, ESTR("invalid initial priority group number")},
+ {1, 1024, "invalid number of priority groups"},
+ {1, 1024, "invalid initial priority group number"},
};
int r;
@@ -707,7 +706,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
m = alloc_multipath();
if (!m) {
- ti->error = ESTR("can't allocate multipath");
+ ti->error = "can't allocate multipath";
return -EINVAL;
}
@@ -746,7 +745,7 @@ static int multipath_ctr(struct dm_target *ti, unsigned int argc,
}
if (pg_count != m->nr_priority_groups) {
- ti->error = ESTR("priority group count mismatch");
+ ti->error = "priority group count mismatch";
r = -EINVAL;
goto bad;
}
@@ -807,7 +806,7 @@ static int fail_path(struct pgpath *pgpath)
if (!pgpath->path.is_active)
goto out;
- DMWARN("dm-multipath: Failing path %s.", pgpath->path.dev->name);
+ DMWARN("Failing path %s.", pgpath->path.dev->name);
pgpath->pg->ps.type->fail_path(&pgpath->pg->ps, &pgpath->path);
pgpath->path.is_active = 0;
@@ -1250,7 +1249,7 @@ static int multipath_message(struct dm_target *ti, unsigned argc, char **argv)
r = dm_get_device(ti, argv[1], ti->begin, ti->len,
dm_table_get_mode(ti->table), &dev);
if (r) {
- DMWARN("dm-multipath message: error getting device %s",
+ DMWARN("message: error getting device %s",
argv[1]);
return -EINVAL;
}
@@ -1309,7 +1308,7 @@ static int __init dm_multipath_init(void)
return -ENOMEM;
}
- DMINFO("dm-multipath version %u.%u.%u loaded",
+ DMINFO("version %u.%u.%u loaded",
multipath_target.version[0], multipath_target.version[1],
multipath_target.version[2]);
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index d12cf3e5e07..be48cedf986 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -20,6 +20,8 @@
#include <linux/vmalloc.h>
#include <linux/workqueue.h>
+#define DM_MSG_PREFIX "raid1"
+
static struct workqueue_struct *_kmirrord_wq;
static struct work_struct _kmirrord_work;
@@ -106,12 +108,42 @@ struct region {
struct bio_list delayed_bios;
};
+
+/*-----------------------------------------------------------------
+ * Mirror set structures.
+ *---------------------------------------------------------------*/
+struct mirror {
+ atomic_t error_count;
+ struct dm_dev *dev;
+ sector_t offset;
+};
+
+struct mirror_set {
+ struct dm_target *ti;
+ struct list_head list;
+ struct region_hash rh;
+ struct kcopyd_client *kcopyd_client;
+
+ spinlock_t lock; /* protects the next two lists */
+ struct bio_list reads;
+ struct bio_list writes;
+
+ /* recovery */
+ region_t nr_regions;
+ int in_sync;
+
+ struct mirror *default_mirror; /* Default mirror */
+
+ unsigned int nr_mirrors;
+ struct mirror mirror[0];
+};
+
/*
* Conversion fns
*/
static inline region_t bio_to_region(struct region_hash *rh, struct bio *bio)
{
- return bio->bi_sector >> rh->region_shift;
+ return (bio->bi_sector - rh->ms->ti->begin) >> rh->region_shift;
}
static inline sector_t region_to_sector(struct region_hash *rh, region_t region)
@@ -458,11 +490,9 @@ static int __rh_recovery_prepare(struct region_hash *rh)
/* Already quiesced ? */
if (atomic_read(&reg->pending))
list_del_init(&reg->list);
+ else
+ list_move(&reg->list, &rh->quiesced_regions);
- else {
- list_del_init(&reg->list);
- list_add(&reg->list, &rh->quiesced_regions);
- }
spin_unlock_irq(&rh->region_lock);
return 1;
@@ -541,35 +571,6 @@ static void rh_start_recovery(struct region_hash *rh)
wake();
}
-/*-----------------------------------------------------------------
- * Mirror set structures.
- *---------------------------------------------------------------*/
-struct mirror {
- atomic_t error_count;
- struct dm_dev *dev;
- sector_t offset;
-};
-
-struct mirror_set {
- struct dm_target *ti;
- struct list_head list;
- struct region_hash rh;
- struct kcopyd_client *kcopyd_client;
-
- spinlock_t lock; /* protects the next two lists */
- struct bio_list reads;
- struct bio_list writes;
-
- /* recovery */
- region_t nr_regions;
- int in_sync;
-
- struct mirror *default_mirror; /* Default mirror */
-
- unsigned int nr_mirrors;
- struct mirror mirror[0];
-};
-
/*
* Every mirror should look like this one.
*/
@@ -603,7 +604,7 @@ static void recovery_complete(int read_err, unsigned int write_err,
struct region *reg = (struct region *) context;
/* FIXME: better error handling */
- rh_recovery_end(reg, read_err || write_err);
+ rh_recovery_end(reg, !(read_err || write_err));
}
static int recover(struct mirror_set *ms, struct region *reg)
@@ -893,7 +894,7 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
ms = kmalloc(len, GFP_KERNEL);
if (!ms) {
- ti->error = "dm-mirror: Cannot allocate mirror context";
+ ti->error = "Cannot allocate mirror context";
return NULL;
}
@@ -907,7 +908,7 @@ static struct mirror_set *alloc_context(unsigned int nr_mirrors,
ms->default_mirror = &ms->mirror[DEFAULT_MIRROR];
if (rh_init(&ms->rh, ms, dl, region_size, ms->nr_regions)) {
- ti->error = "dm-mirror: Error creating dirty region hash";
+ ti->error = "Error creating dirty region hash";
kfree(ms);
return NULL;
}
@@ -937,14 +938,14 @@ static int get_mirror(struct mirror_set *ms, struct dm_target *ti,
unsigned long long offset;
if (sscanf(argv[1], "%llu", &offset) != 1) {
- ti->error = "dm-mirror: Invalid offset";
+ ti->error = "Invalid offset";
return -EINVAL;
}
if (dm_get_device(ti, argv[0], offset, ti->len,
dm_table_get_mode(ti->table),
&ms->mirror[mirror].dev)) {
- ti->error = "dm-mirror: Device lookup failure";
+ ti->error = "Device lookup failure";
return -ENXIO;
}
@@ -981,30 +982,30 @@ static struct dirty_log *create_dirty_log(struct dm_target *ti,
struct dirty_log *dl;
if (argc < 2) {
- ti->error = "dm-mirror: Insufficient mirror log arguments";
+ ti->error = "Insufficient mirror log arguments";
return NULL;
}
if (sscanf(argv[1], "%u", &param_count) != 1) {
- ti->error = "dm-mirror: Invalid mirror log argument count";
+ ti->error = "Invalid mirror log argument count";
return NULL;
}
*args_used = 2 + param_count;
if (argc < *args_used) {
- ti->error = "dm-mirror: Insufficient mirror log arguments";
+ ti->error = "Insufficient mirror log arguments";
return NULL;
}
dl = dm_create_dirty_log(argv[0], ti, param_count, argv + 2);
if (!dl) {
- ti->error = "dm-mirror: Error creating mirror dirty log";
+ ti->error = "Error creating mirror dirty log";
return NULL;
}
if (!_check_region_size(ti, dl->type->get_region_size(dl))) {
- ti->error = "dm-mirror: Invalid region size";
+ ti->error = "Invalid region size";
dm_destroy_dirty_log(dl);
return NULL;
}
@@ -1038,7 +1039,7 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
if (!argc || sscanf(argv[0], "%u", &nr_mirrors) != 1 ||
nr_mirrors < 2 || nr_mirrors > KCOPYD_MAX_REGIONS + 1) {
- ti->error = "dm-mirror: Invalid number of mirrors";
+ ti->error = "Invalid number of mirrors";
dm_destroy_dirty_log(dl);
return -EINVAL;
}
@@ -1046,7 +1047,7 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
argv++, argc--;
if (argc != nr_mirrors * 2) {
- ti->error = "dm-mirror: Wrong number of mirror arguments";
+ ti->error = "Wrong number of mirror arguments";
dm_destroy_dirty_log(dl);
return -EINVAL;
}
@@ -1115,7 +1116,7 @@ static int mirror_map(struct dm_target *ti, struct bio *bio,
struct mirror *m;
struct mirror_set *ms = ti->private;
- map_context->ll = bio->bi_sector >> ms->rh.region_shift;
+ map_context->ll = bio_to_region(&ms->rh, bio);
if (rw == WRITE) {
queue_bio(ms, bio, rw);
@@ -1221,7 +1222,7 @@ static int mirror_status(struct dm_target *ti, status_type_t type,
static struct target_type mirror_target = {
.name = "mirror",
- .version = {1, 0, 1},
+ .version = {1, 0, 2},
.module = THIS_MODULE,
.ctr = mirror_ctr,
.dtr = mirror_dtr,
diff --git a/drivers/md/dm-round-robin.c b/drivers/md/dm-round-robin.c
index d0024865a78..c5a16c55012 100644
--- a/drivers/md/dm-round-robin.c
+++ b/drivers/md/dm-round-robin.c
@@ -14,6 +14,8 @@
#include <linux/slab.h>
+#define DM_MSG_PREFIX "multipath round-robin"
+
/*-----------------------------------------------------------------
* Path-handling code, paths are held in lists
*---------------------------------------------------------------*/
@@ -191,9 +193,9 @@ static int __init dm_rr_init(void)
int r = dm_register_path_selector(&rr_ps);
if (r < 0)
- DMERR("round-robin: register failed %d", r);
+ DMERR("register failed %d", r);
- DMINFO("dm-round-robin version 1.0.0 loaded");
+ DMINFO("version 1.0.0 loaded");
return r;
}
diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c
index 08312b46463..8eea0ddbf5e 100644
--- a/drivers/md/dm-snap.c
+++ b/drivers/md/dm-snap.c
@@ -23,6 +23,8 @@
#include "dm-bio-list.h"
#include "kcopyd.h"
+#define DM_MSG_PREFIX "snapshots"
+
/*
* The percentage increment we will wake up users at
*/
@@ -117,7 +119,7 @@ static int init_origin_hash(void)
_origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head),
GFP_KERNEL);
if (!_origins) {
- DMERR("Device mapper: Snapshot: unable to allocate memory");
+ DMERR("unable to allocate memory");
return -ENOMEM;
}
@@ -412,7 +414,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
int blocksize;
if (argc < 4) {
- ti->error = "dm-snapshot: requires exactly 4 arguments";
+ ti->error = "requires exactly 4 arguments";
r = -EINVAL;
goto bad1;
}
@@ -530,7 +532,7 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv)
}
ti->private = s;
- ti->split_io = chunk_size;
+ ti->split_io = s->chunk_size;
return 0;
@@ -1127,7 +1129,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv)
struct dm_dev *dev;
if (argc != 1) {
- ti->error = "dm-origin: incorrect number of arguments";
+ ti->error = "origin: incorrect number of arguments";
return -EINVAL;
}
@@ -1204,7 +1206,7 @@ static int origin_status(struct dm_target *ti, status_type_t type, char *result,
static struct target_type origin_target = {
.name = "snapshot-origin",
- .version = {1, 1, 0},
+ .version = {1, 4, 0},
.module = THIS_MODULE,
.ctr = origin_ctr,
.dtr = origin_dtr,
@@ -1215,7 +1217,7 @@ static struct target_type origin_target = {
static struct target_type snapshot_target = {
.name = "snapshot",
- .version = {1, 1, 0},
+ .version = {1, 4, 0},
.module = THIS_MODULE,
.ctr = snapshot_ctr,
.dtr = snapshot_dtr,
@@ -1236,7 +1238,7 @@ static int __init dm_snapshot_init(void)
r = dm_register_target(&origin_target);
if (r < 0) {
- DMERR("Device mapper: Origin: register failed %d\n", r);
+ DMERR("Origin target register failed %d", r);
goto bad1;
}
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index 08328a8f5a3..6c29fcecd89 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -12,6 +12,8 @@
#include <linux/bio.h>
#include <linux/slab.h>
+#define DM_MSG_PREFIX "striped"
+
struct stripe {
struct dm_dev *dev;
sector_t physical_start;
@@ -78,19 +80,19 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
unsigned int i;
if (argc < 2) {
- ti->error = "dm-stripe: Not enough arguments";
+ ti->error = "Not enough arguments";
return -EINVAL;
}
stripes = simple_strtoul(argv[0], &end, 10);
if (*end) {
- ti->error = "dm-stripe: Invalid stripe count";
+ ti->error = "Invalid stripe count";
return -EINVAL;
}
chunk_size = simple_strtoul(argv[1], &end, 10);
if (*end) {
- ti->error = "dm-stripe: Invalid chunk_size";
+ ti->error = "Invalid chunk_size";
return -EINVAL;
}
@@ -99,19 +101,19 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
*/
if (!chunk_size || (chunk_size & (chunk_size - 1)) ||
(chunk_size < (PAGE_SIZE >> SECTOR_SHIFT))) {
- ti->error = "dm-stripe: Invalid chunk size";
+ ti->error = "Invalid chunk size";
return -EINVAL;
}
if (ti->len & (chunk_size - 1)) {
- ti->error = "dm-stripe: Target length not divisible by "
+ ti->error = "Target length not divisible by "
"chunk size";
return -EINVAL;
}
width = ti->len;
if (sector_div(width, stripes)) {
- ti->error = "dm-stripe: Target length not divisible by "
+ ti->error = "Target length not divisible by "
"number of stripes";
return -EINVAL;
}
@@ -120,14 +122,14 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
* Do we have enough arguments for that many stripes ?
*/
if (argc != (2 + 2 * stripes)) {
- ti->error = "dm-stripe: Not enough destinations "
+ ti->error = "Not enough destinations "
"specified";
return -EINVAL;
}
sc = alloc_context(stripes);
if (!sc) {
- ti->error = "dm-stripe: Memory allocation for striped context "
+ ti->error = "Memory allocation for striped context "
"failed";
return -ENOMEM;
}
@@ -149,8 +151,7 @@ static int stripe_ctr(struct dm_target *ti, unsigned int argc, char **argv)
r = get_stripe(ti, sc, i, argv);
if (r < 0) {
- ti->error = "dm-stripe: Couldn't parse stripe "
- "destination";
+ ti->error = "Couldn't parse stripe destination";
while (i--)
dm_put_device(ti, sc->stripe[i].dev);
kfree(sc);
@@ -227,7 +228,7 @@ int __init dm_stripe_init(void)
r = dm_register_target(&stripe_target);
if (r < 0)
- DMWARN("striped target registration failed");
+ DMWARN("target registration failed");
return r;
}
@@ -235,7 +236,7 @@ int __init dm_stripe_init(void)
void dm_stripe_exit(void)
{
if (dm_unregister_target(&stripe_target))
- DMWARN("striped target unregistration failed");
+ DMWARN("target unregistration failed");
return;
}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 8f56a54cf0c..75fe9493e6a 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -17,6 +17,8 @@
#include <linux/mutex.h>
#include <asm/atomic.h>
+#define DM_MSG_PREFIX "table"
+
#define MAX_DEPTH 16
#define NODE_SIZE L1_CACHE_BYTES
#define KEYS_PER_NODE (NODE_SIZE / sizeof(sector_t))
@@ -237,6 +239,44 @@ int dm_table_create(struct dm_table **result, int mode,
return 0;
}
+int dm_create_error_table(struct dm_table **result, struct mapped_device *md)
+{
+ struct dm_table *t;
+ sector_t dev_size = 1;
+ int r;
+
+ /*
+ * Find current size of device.
+ * Default to 1 sector if inactive.
+ */
+ t = dm_get_table(md);
+ if (t) {
+ dev_size = dm_table_get_size(t);
+ dm_table_put(t);
+ }
+
+ r = dm_table_create(&t, FMODE_READ, 1, md);
+ if (r)
+ return r;
+
+ r = dm_table_add_target(t, "error", 0, dev_size, NULL);
+ if (r)
+ goto out;
+
+ r = dm_table_complete(t);
+ if (r)
+ goto out;
+
+ *result = t;
+
+out:
+ if (r)
+ dm_table_put(t);
+
+ return r;
+}
+EXPORT_SYMBOL_GPL(dm_create_error_table);
+
static void free_devices(struct list_head *devices)
{
struct list_head *tmp, *next;
@@ -590,6 +630,12 @@ int dm_split_args(int *argc, char ***argvp, char *input)
unsigned array_size = 0;
*argc = 0;
+
+ if (!input) {
+ *argvp = NULL;
+ return 0;
+ }
+
argv = realloc_argv(&array_size, argv);
if (!argv)
return -ENOMEM;
@@ -671,15 +717,14 @@ int dm_table_add_target(struct dm_table *t, const char *type,
memset(tgt, 0, sizeof(*tgt));
if (!len) {
- tgt->error = "zero-length target";
- DMERR("%s", tgt->error);
+ DMERR("%s: zero-length target", dm_device_name(t->md));
return -EINVAL;
}
tgt->type = dm_get_target_type(type);
if (!tgt->type) {
- tgt->error = "unknown target type";
- DMERR("%s", tgt->error);
+ DMERR("%s: %s: unknown target type", dm_device_name(t->md),
+ type);
return -EINVAL;
}
@@ -716,7 +761,7 @@ int dm_table_add_target(struct dm_table *t, const char *type,
return 0;
bad:
- DMERR("%s", tgt->error);
+ DMERR("%s: %s: %s", dm_device_name(t->md), type, tgt->error);
dm_put_target_type(tgt->type);
return r;
}
@@ -802,7 +847,7 @@ sector_t dm_table_get_size(struct dm_table *t)
struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index)
{
- if (index > t->num_targets)
+ if (index >= t->num_targets)
return NULL;
return t->targets + index;
diff --git a/drivers/md/dm-target.c b/drivers/md/dm-target.c
index 64fd8e79ea4..477a041a41c 100644
--- a/drivers/md/dm-target.c
+++ b/drivers/md/dm-target.c
@@ -12,6 +12,8 @@
#include <linux/bio.h>
#include <linux/slab.h>
+#define DM_MSG_PREFIX "target"
+
struct tt_internal {
struct target_type tt;
diff --git a/drivers/md/dm-zero.c b/drivers/md/dm-zero.c
index 51c0639b248..ea569f7348d 100644
--- a/drivers/md/dm-zero.c
+++ b/drivers/md/dm-zero.c
@@ -10,13 +10,15 @@
#include <linux/init.h>
#include <linux/bio.h>
+#define DM_MSG_PREFIX "zero"
+
/*
* Construct a dummy mapping that only returns zeros
*/
static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
{
if (argc != 0) {
- ti->error = "dm-zero: No arguments required";
+ ti->error = "No arguments required";
return -EINVAL;
}
@@ -60,7 +62,7 @@ static int __init dm_zero_init(void)
int r = dm_register_target(&zero_target);
if (r < 0)
- DMERR("zero: register failed %d", r);
+ DMERR("register failed %d", r);
return r;
}
@@ -70,7 +72,7 @@ static void __exit dm_zero_exit(void)
int r = dm_unregister_target(&zero_target);
if (r < 0)
- DMERR("zero: unregister failed %d", r);
+ DMERR("unregister failed %d", r);
}
module_init(dm_zero_init)
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4d710b7a133..3ed2e53b9eb 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1,6 +1,6 @@
/*
* Copyright (C) 2001, 2002 Sistina Software (UK) Limited.
- * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This file is released under the GPL.
*/
@@ -21,11 +21,14 @@
#include <linux/hdreg.h>
#include <linux/blktrace_api.h>
+#define DM_MSG_PREFIX "core"
+
static const char *_name = DM_NAME;
static unsigned int major = 0;
static unsigned int _major = 0;
+static DEFINE_SPINLOCK(_minor_lock);
/*
* One of these is allocated per bio.
*/
@@ -49,23 +52,28 @@ struct target_io {
union map_info *dm_get_mapinfo(struct bio *bio)
{
- if (bio && bio->bi_private)
- return &((struct target_io *)bio->bi_private)->info;
- return NULL;
+ if (bio && bio->bi_private)
+ return &((struct target_io *)bio->bi_private)->info;
+ return NULL;
}
+#define MINOR_ALLOCED ((void *)-1)
+
/*
* Bits for the md->flags field.
*/
#define DMF_BLOCK_IO 0
#define DMF_SUSPENDED 1
#define DMF_FROZEN 2
+#define DMF_FREEING 3
+#define DMF_DELETING 4
struct mapped_device {
struct rw_semaphore io_lock;
struct semaphore suspend_lock;
rwlock_t map_lock;
atomic_t holders;
+ atomic_t open_count;
unsigned long flags;
@@ -218,9 +226,25 @@ static int dm_blk_open(struct inode *inode, struct file *file)
{
struct mapped_device *md;
+ spin_lock(&_minor_lock);
+
md = inode->i_bdev->bd_disk->private_data;
+ if (!md)
+ goto out;
+
+ if (test_bit(DMF_FREEING, &md->flags) ||
+ test_bit(DMF_DELETING, &md->flags)) {
+ md = NULL;
+ goto out;
+ }
+
dm_get(md);
- return 0;
+ atomic_inc(&md->open_count);
+
+out:
+ spin_unlock(&_minor_lock);
+
+ return md ? 0 : -ENXIO;
}
static int dm_blk_close(struct inode *inode, struct file *file)
@@ -228,10 +252,35 @@ static int dm_blk_close(struct inode *inode, struct file *file)
struct mapped_device *md;
md = inode->i_bdev->bd_disk->private_data;
+ atomic_dec(&md->open_count);
dm_put(md);
return 0;
}
+int dm_open_count(struct mapped_device *md)
+{
+ return atomic_read(&md->open_count);
+}
+
+/*
+ * Guarantees nothing is using the device before it's deleted.
+ */
+int dm_lock_for_deletion(struct mapped_device *md)
+{
+ int r = 0;
+
+ spin_lock(&_minor_lock);
+
+ if (dm_open_count(md))
+ r = -EBUSY;
+ else
+ set_bit(DMF_DELETING, &md->flags);
+
+ spin_unlock(&_minor_lock);
+
+ return r;
+}
+
static int dm_blk_getgeo(struct block_device *bdev, struct hd_geometry *geo)
{
struct mapped_device *md = bdev->bd_disk->private_data;
@@ -456,8 +505,8 @@ static void __map_bio(struct dm_target *ti, struct bio *clone,
if (r > 0) {
/* the bio has been remapped so dispatch it */
- blk_add_trace_remap(bdev_get_queue(clone->bi_bdev), clone,
- tio->io->bio->bi_bdev->bd_dev, sector,
+ blk_add_trace_remap(bdev_get_queue(clone->bi_bdev), clone,
+ tio->io->bio->bi_bdev->bd_dev, sector,
clone->bi_sector);
generic_make_request(clone);
@@ -744,43 +793,39 @@ static int dm_any_congested(void *congested_data, int bdi_bits)
/*-----------------------------------------------------------------
* An IDR is used to keep track of allocated minor numbers.
*---------------------------------------------------------------*/
-static DEFINE_MUTEX(_minor_lock);
static DEFINE_IDR(_minor_idr);
-static void free_minor(unsigned int minor)
+static void free_minor(int minor)
{
- mutex_lock(&_minor_lock);
+ spin_lock(&_minor_lock);
idr_remove(&_minor_idr, minor);
- mutex_unlock(&_minor_lock);
+ spin_unlock(&_minor_lock);
}
/*
* See if the device with a specific minor # is free.
*/
-static int specific_minor(struct mapped_device *md, unsigned int minor)
+static int specific_minor(struct mapped_device *md, int minor)
{
int r, m;
if (minor >= (1 << MINORBITS))
return -EINVAL;
- mutex_lock(&_minor_lock);
+ r = idr_pre_get(&_minor_idr, GFP_KERNEL);
+ if (!r)
+ return -ENOMEM;
+
+ spin_lock(&_minor_lock);
if (idr_find(&_minor_idr, minor)) {
r = -EBUSY;
goto out;
}
- r = idr_pre_get(&_minor_idr, GFP_KERNEL);
- if (!r) {
- r = -ENOMEM;
- goto out;
- }
-
- r = idr_get_new_above(&_minor_idr, md, minor, &m);
- if (r) {
+ r = idr_get_new_above(&_minor_idr, MINOR_ALLOCED, minor, &m);
+ if (r)
goto out;
- }
if (m != minor) {
idr_remove(&_minor_idr, m);
@@ -789,24 +834,21 @@ static int specific_minor(struct mapped_device *md, unsigned int minor)
}
out:
- mutex_unlock(&_minor_lock);
+ spin_unlock(&_minor_lock);
return r;
}
-static int next_free_minor(struct mapped_device *md, unsigned int *minor)
+static int next_free_minor(struct mapped_device *md, int *minor)
{
- int r;
- unsigned int m;
-
- mutex_lock(&_minor_lock);
+ int r, m;
r = idr_pre_get(&_minor_idr, GFP_KERNEL);
- if (!r) {
- r = -ENOMEM;
- goto out;
- }
+ if (!r)
+ return -ENOMEM;
+
+ spin_lock(&_minor_lock);
- r = idr_get_new(&_minor_idr, md, &m);
+ r = idr_get_new(&_minor_idr, MINOR_ALLOCED, &m);
if (r) {
goto out;
}
@@ -820,7 +862,7 @@ static int next_free_minor(struct mapped_device *md, unsigned int *minor)
*minor = m;
out:
- mutex_unlock(&_minor_lock);
+ spin_unlock(&_minor_lock);
return r;
}
@@ -829,18 +871,25 @@ static struct block_device_operations dm_blk_dops;
/*
* Allocate and initialise a blank device with a given minor.
*/
-static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
+static struct mapped_device *alloc_dev(int minor)
{
int r;
struct mapped_device *md = kmalloc(sizeof(*md), GFP_KERNEL);
+ void *old_md;
if (!md) {
DMWARN("unable to allocate device, out of memory.");
return NULL;
}
+ if (!try_module_get(THIS_MODULE))
+ goto bad0;
+
/* get a minor number for the dev */
- r = persistent ? specific_minor(md, minor) : next_free_minor(md, &minor);
+ if (minor == DM_ANY_MINOR)
+ r = next_free_minor(md, &minor);
+ else
+ r = specific_minor(md, minor);
if (r < 0)
goto bad1;
@@ -849,6 +898,7 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
init_MUTEX(&md->suspend_lock);
rwlock_init(&md->map_lock);
atomic_set(&md->holders, 1);
+ atomic_set(&md->open_count, 0);
atomic_set(&md->event_nr, 0);
md->queue = blk_alloc_queue(GFP_KERNEL);
@@ -875,6 +925,10 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
if (!md->disk)
goto bad4;
+ atomic_set(&md->pending, 0);
+ init_waitqueue_head(&md->wait);
+ init_waitqueue_head(&md->eventq);
+
md->disk->major = _major;
md->disk->first_minor = minor;
md->disk->fops = &dm_blk_dops;
@@ -884,9 +938,12 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
add_disk(md->disk);
format_dev_t(md->name, MKDEV(_major, minor));
- atomic_set(&md->pending, 0);
- init_waitqueue_head(&md->wait);
- init_waitqueue_head(&md->eventq);
+ /* Populate the mapping, nobody knows we exist yet */
+ spin_lock(&_minor_lock);
+ old_md = idr_replace(&_minor_idr, md, minor);
+ spin_unlock(&_minor_lock);
+
+ BUG_ON(old_md != MINOR_ALLOCED);
return md;
@@ -898,13 +955,15 @@ static struct mapped_device *alloc_dev(unsigned int minor, int persistent)
blk_cleanup_queue(md->queue);
free_minor(minor);
bad1:
+ module_put(THIS_MODULE);
+ bad0:
kfree(md);
return NULL;
}
static void free_dev(struct mapped_device *md)
{
- unsigned int minor = md->disk->first_minor;
+ int minor = md->disk->first_minor;
if (md->suspended_bdev) {
thaw_bdev(md->suspended_bdev, NULL);
@@ -914,8 +973,14 @@ static void free_dev(struct mapped_device *md)
mempool_destroy(md->io_pool);
del_gendisk(md->disk);
free_minor(minor);
+
+ spin_lock(&_minor_lock);
+ md->disk->private_data = NULL;
+ spin_unlock(&_minor_lock);
+
put_disk(md->disk);
blk_cleanup_queue(md->queue);
+ module_put(THIS_MODULE);
kfree(md);
}
@@ -984,12 +1049,11 @@ static void __unbind(struct mapped_device *md)
/*
* Constructor for a new device.
*/
-static int create_aux(unsigned int minor, int persistent,
- struct mapped_device **result)
+int dm_create(int minor, struct mapped_device **result)
{
struct mapped_device *md;
- md = alloc_dev(minor, persistent);
+ md = alloc_dev(minor);
if (!md)
return -ENXIO;
@@ -997,16 +1061,6 @@ static int create_aux(unsigned int minor, int persistent,
return 0;
}
-int dm_create(struct mapped_device **result)
-{
- return create_aux(0, 0, result);
-}
-
-int dm_create_with_minor(unsigned int minor, struct mapped_device **result)
-{
- return create_aux(minor, 1, result);
-}
-
static struct mapped_device *dm_find_md(dev_t dev)
{
struct mapped_device *md;
@@ -1015,13 +1069,18 @@ static struct mapped_device *dm_find_md(dev_t dev)
if (MAJOR(dev) != _major || minor >= (1 << MINORBITS))
return NULL;
- mutex_lock(&_minor_lock);
+ spin_lock(&_minor_lock);
md = idr_find(&_minor_idr, minor);
- if (!md || (dm_disk(md)->first_minor != minor))
+ if (md && (md == MINOR_ALLOCED ||
+ (dm_disk(md)->first_minor != minor) ||
+ test_bit(DMF_FREEING, &md->flags))) {
md = NULL;
+ goto out;
+ }
- mutex_unlock(&_minor_lock);
+out:
+ spin_unlock(&_minor_lock);
return md;
}
@@ -1051,12 +1110,23 @@ void dm_get(struct mapped_device *md)
atomic_inc(&md->holders);
}
+const char *dm_device_name(struct mapped_device *md)
+{
+ return md->name;
+}
+EXPORT_SYMBOL_GPL(dm_device_name);
+
void dm_put(struct mapped_device *md)
{
struct dm_table *map;
- if (atomic_dec_and_test(&md->holders)) {
+ BUG_ON(test_bit(DMF_FREEING, &md->flags));
+
+ if (atomic_dec_and_lock(&md->holders, &_minor_lock)) {
map = dm_get_table(md);
+ idr_replace(&_minor_idr, MINOR_ALLOCED, dm_disk(md)->first_minor);
+ set_bit(DMF_FREEING, &md->flags);
+ spin_unlock(&_minor_lock);
if (!dm_suspended(md)) {
dm_table_presuspend_targets(map);
dm_table_postsuspend_targets(map);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index fd90bc8f9e4..3c03c0ecab7 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -2,7 +2,7 @@
* Internal header file for device mapper
*
* Copyright (C) 2001, 2002 Sistina Software
- * Copyright (C) 2004 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This file is released under the LGPL.
*/
@@ -17,9 +17,10 @@
#include <linux/hdreg.h>
#define DM_NAME "device-mapper"
-#define DMWARN(f, x...) printk(KERN_WARNING DM_NAME ": " f "\n" , ## x)
-#define DMERR(f, x...) printk(KERN_ERR DM_NAME ": " f "\n" , ## x)
-#define DMINFO(f, x...) printk(KERN_INFO DM_NAME ": " f "\n" , ## x)
+
+#define DMERR(f, arg...) printk(KERN_ERR DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
+#define DMWARN(f, arg...) printk(KERN_WARNING DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
+#define DMINFO(f, arg...) printk(KERN_INFO DM_NAME ": " DM_MSG_PREFIX ": " f "\n", ## arg)
#define DMEMIT(x...) sz += ((sz >= maxlen) ? \
0 : scnprintf(result + sz, maxlen - sz, x))
@@ -39,83 +40,16 @@ struct dm_dev {
};
struct dm_table;
-struct mapped_device;
-
-/*-----------------------------------------------------------------
- * Functions for manipulating a struct mapped_device.
- * Drop the reference with dm_put when you finish with the object.
- *---------------------------------------------------------------*/
-int dm_create(struct mapped_device **md);
-int dm_create_with_minor(unsigned int minor, struct mapped_device **md);
-void dm_set_mdptr(struct mapped_device *md, void *ptr);
-void *dm_get_mdptr(struct mapped_device *md);
-struct mapped_device *dm_get_md(dev_t dev);
-
-/*
- * Reference counting for md.
- */
-void dm_get(struct mapped_device *md);
-void dm_put(struct mapped_device *md);
-
-/*
- * A device can still be used while suspended, but I/O is deferred.
- */
-int dm_suspend(struct mapped_device *md, int with_lockfs);
-int dm_resume(struct mapped_device *md);
-
-/*
- * The device must be suspended before calling this method.
- */
-int dm_swap_table(struct mapped_device *md, struct dm_table *t);
-
-/*
- * Drop a reference on the table when you've finished with the
- * result.
- */
-struct dm_table *dm_get_table(struct mapped_device *md);
-
-/*
- * Event functions.
- */
-uint32_t dm_get_event_nr(struct mapped_device *md);
-int dm_wait_event(struct mapped_device *md, int event_nr);
-
-/*
- * Info functions.
- */
-struct gendisk *dm_disk(struct mapped_device *md);
-int dm_suspended(struct mapped_device *md);
-
-/*
- * Geometry functions.
- */
-int dm_get_geometry(struct mapped_device *md, struct hd_geometry *geo);
-int dm_set_geometry(struct mapped_device *md, struct hd_geometry *geo);
/*-----------------------------------------------------------------
- * Functions for manipulating a table. Tables are also reference
- * counted.
+ * Internal table functions.
*---------------------------------------------------------------*/
-int dm_table_create(struct dm_table **result, int mode,
- unsigned num_targets, struct mapped_device *md);
-
-void dm_table_get(struct dm_table *t);
-void dm_table_put(struct dm_table *t);
-
-int dm_table_add_target(struct dm_table *t, const char *type,
- sector_t start, sector_t len, char *params);
-int dm_table_complete(struct dm_table *t);
void dm_table_event_callback(struct dm_table *t,
void (*fn)(void *), void *context);
-void dm_table_event(struct dm_table *t);
-sector_t dm_table_get_size(struct dm_table *t);
struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index);
struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector);
void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q);
-unsigned int dm_table_get_num_targets(struct dm_table *t);
struct list_head *dm_table_get_devices(struct dm_table *t);
-int dm_table_get_mode(struct dm_table *t);
-struct mapped_device *dm_table_get_md(struct dm_table *t);
void dm_table_presuspend_targets(struct dm_table *t);
void dm_table_postsuspend_targets(struct dm_table *t);
void dm_table_resume_targets(struct dm_table *t);
@@ -133,7 +67,6 @@ void dm_put_target_type(struct target_type *t);
int dm_target_iterate(void (*iter_func)(struct target_type *tt,
void *param), void *param);
-
/*-----------------------------------------------------------------
* Useful inlines.
*---------------------------------------------------------------*/
@@ -191,5 +124,7 @@ void dm_stripe_exit(void);
void *dm_vcalloc(unsigned long nmemb, unsigned long elem_size);
union map_info *dm_get_mapinfo(struct bio *bio);
+int dm_open_count(struct mapped_device *md);
+int dm_lock_for_deletion(struct mapped_device *md);
#endif
diff --git a/drivers/md/kcopyd.c b/drivers/md/kcopyd.c
index 72480a48d88..73ab875fb15 100644
--- a/drivers/md/kcopyd.c
+++ b/drivers/md/kcopyd.c
@@ -314,7 +314,7 @@ static void complete_io(unsigned long error, void *context)
if (error) {
if (job->rw == WRITE)
- job->write_err &= error;
+ job->write_err |= error;
else
job->read_err = 1;
@@ -460,7 +460,7 @@ static void segment_complete(int read_err,
job->read_err = 1;
if (write_err)
- job->write_err &= write_err;
+ job->write_err |= write_err;
/*
* Only dispatch more work if there hasn't been an error.
diff --git a/drivers/md/linear.c b/drivers/md/linear.c
index 777585458c8..ff83c9b5979 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/linear.c
@@ -111,7 +111,7 @@ static int linear_issue_flush(request_queue_t *q, struct gendisk *disk,
return ret;
}
-static int linear_run (mddev_t *mddev)
+static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks)
{
linear_conf_t *conf;
dev_info_t **table;
@@ -121,20 +121,21 @@ static int linear_run (mddev_t *mddev)
sector_t curr_offset;
struct list_head *tmp;
- conf = kzalloc (sizeof (*conf) + mddev->raid_disks*sizeof(dev_info_t),
+ conf = kzalloc (sizeof (*conf) + raid_disks*sizeof(dev_info_t),
GFP_KERNEL);
if (!conf)
- goto out;
+ return NULL;
+
mddev->private = conf;
cnt = 0;
- mddev->array_size = 0;
+ conf->array_size = 0;
ITERATE_RDEV(mddev,rdev,tmp) {
int j = rdev->raid_disk;
dev_info_t *disk = conf->disks + j;
- if (j < 0 || j > mddev->raid_disks || disk->rdev) {
+ if (j < 0 || j > raid_disks || disk->rdev) {
printk("linear: disk numbering problem. Aborting!\n");
goto out;
}
@@ -152,11 +153,11 @@ static int linear_run (mddev_t *mddev)
blk_queue_max_sectors(mddev->queue, PAGE_SIZE>>9);
disk->size = rdev->size;
- mddev->array_size += rdev->size;
+ conf->array_size += rdev->size;
cnt++;
}
- if (cnt != mddev->raid_disks) {
+ if (cnt != raid_disks) {
printk("linear: not enough drives present. Aborting!\n");
goto out;
}
@@ -200,7 +201,7 @@ static int linear_run (mddev_t *mddev)
unsigned round;
unsigned long base;
- sz = mddev->array_size >> conf->preshift;
+ sz = conf->array_size >> conf->preshift;
sz += 1; /* force round-up */
base = conf->hash_spacing >> conf->preshift;
round = sector_div(sz, base);
@@ -247,14 +248,56 @@ static int linear_run (mddev_t *mddev)
BUG_ON(table - conf->hash_table > nb_zone);
+ return conf;
+
+out:
+ kfree(conf);
+ return NULL;
+}
+
+static int linear_run (mddev_t *mddev)
+{
+ linear_conf_t *conf;
+
+ conf = linear_conf(mddev, mddev->raid_disks);
+
+ if (!conf)
+ return 1;
+ mddev->private = conf;
+ mddev->array_size = conf->array_size;
+
blk_queue_merge_bvec(mddev->queue, linear_mergeable_bvec);
mddev->queue->unplug_fn = linear_unplug;
mddev->queue->issue_flush_fn = linear_issue_flush;
return 0;
+}
-out:
- kfree(conf);
- return 1;
+static int linear_add(mddev_t *mddev, mdk_rdev_t *rdev)
+{
+ /* Adding a drive to a linear array allows the array to grow.
+ * It is permitted if the new drive has a matching superblock
+ * already on it, with raid_disk equal to raid_disks.
+ * It is achieved by creating a new linear_private_data structure
+ * and swapping it in in-place of the current one.
+ * The current one is never freed until the array is stopped.
+ * This avoids races.
+ */
+ linear_conf_t *newconf;
+
+ if (rdev->raid_disk != mddev->raid_disks)
+ return -EINVAL;
+
+ newconf = linear_conf(mddev,mddev->raid_disks+1);
+
+ if (!newconf)
+ return -ENOMEM;
+
+ newconf->prev = mddev_to_conf(mddev);
+ mddev->private = newconf;
+ mddev->raid_disks++;
+ mddev->array_size = newconf->array_size;
+ set_capacity(mddev->gendisk, mddev->array_size << 1);
+ return 0;
}
static int linear_stop (mddev_t *mddev)
@@ -262,8 +305,12 @@ static int linear_stop (mddev_t *mddev)
linear_conf_t *conf = mddev_to_conf(mddev);
blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
- kfree(conf->hash_table);
- kfree(conf);
+ do {
+ linear_conf_t *t = conf->prev;
+ kfree(conf->hash_table);
+ kfree(conf);
+ conf = t;
+ } while (conf);
return 0;
}
@@ -360,6 +407,7 @@ static struct mdk_personality linear_personality =
.run = linear_run,
.stop = linear_stop,
.status = linear_status,
+ .hot_add_disk = linear_add,
};
static int __init linear_init (void)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index f19b874753a..306268ec99f 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -44,6 +44,7 @@
#include <linux/suspend.h>
#include <linux/poll.h>
#include <linux/mutex.h>
+#include <linux/ctype.h>
#include <linux/init.h>
@@ -72,6 +73,10 @@ static void autostart_arrays (int part);
static LIST_HEAD(pers_list);
static DEFINE_SPINLOCK(pers_lock);
+static void md_print_devices(void);
+
+#define MD_BUG(x...) { printk("md: bug in file %s, line %d\n", __FILE__, __LINE__); md_print_devices(); }
+
/*
* Current RAID-1,4,5 parallel reconstruction 'guaranteed speed limit'
* is 1000 KB/sec, so the extra system load does not show up that much.
@@ -170,7 +175,7 @@ EXPORT_SYMBOL_GPL(md_new_event);
/* Alternate version that can be called from interrupts
* when calling sysfs_notify isn't needed.
*/
-void md_new_event_inintr(mddev_t *mddev)
+static void md_new_event_inintr(mddev_t *mddev)
{
atomic_inc(&md_event_count);
wake_up(&md_event_waiters);
@@ -732,6 +737,7 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
{
mdp_disk_t *desc;
mdp_super_t *sb = (mdp_super_t *)page_address(rdev->sb_page);
+ __u64 ev1 = md_event(sb);
rdev->raid_disk = -1;
rdev->flags = 0;
@@ -748,7 +754,7 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
mddev->layout = sb->layout;
mddev->raid_disks = sb->raid_disks;
mddev->size = sb->size;
- mddev->events = md_event(sb);
+ mddev->events = ev1;
mddev->bitmap_offset = 0;
mddev->default_bitmap_offset = MD_SB_BYTES >> 9;
@@ -797,7 +803,6 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
} else if (mddev->pers == NULL) {
/* Insist on good event counter while assembling */
- __u64 ev1 = md_event(sb);
++ev1;
if (ev1 < mddev->events)
return -EINVAL;
@@ -805,19 +810,21 @@ static int super_90_validate(mddev_t *mddev, mdk_rdev_t *rdev)
/* if adding to array with a bitmap, then we can accept an
* older device ... but not too old.
*/
- __u64 ev1 = md_event(sb);
if (ev1 < mddev->bitmap->events_cleared)
return 0;
- } else /* just a hot-add of a new device, leave raid_disk at -1 */
- return 0;
+ } else {
+ if (ev1 < mddev->events)
+ /* just a hot-add of a new device, leave raid_disk at -1 */
+ return 0;
+ }
if (mddev->level != LEVEL_MULTIPATH) {
desc = sb->disks + rdev->desc_nr;
if (desc->state & (1<<MD_DISK_FAULTY))
set_bit(Faulty, &rdev->flags);
- else if (desc->state & (1<<MD_DISK_SYNC) &&
- desc->raid_disk < mddev->raid_disks) {
+ else if (desc->state & (1<<MD_DISK_SYNC) /* &&
+ desc->raid_disk < mddev->raid_disks */) {
set_bit(In_sync, &rdev->flags);
rdev->raid_disk = desc->raid_disk;
}
@@ -1100,6 +1107,7 @@ static int super_1_load(mdk_rdev_t *rdev, mdk_rdev_t *refdev, int minor_version)
static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
{
struct mdp_superblock_1 *sb = (struct mdp_superblock_1*)page_address(rdev->sb_page);
+ __u64 ev1 = le64_to_cpu(sb->events);
rdev->raid_disk = -1;
rdev->flags = 0;
@@ -1115,7 +1123,7 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
mddev->layout = le32_to_cpu(sb->layout);
mddev->raid_disks = le32_to_cpu(sb->raid_disks);
mddev->size = le64_to_cpu(sb->size)/2;
- mddev->events = le64_to_cpu(sb->events);
+ mddev->events = ev1;
mddev->bitmap_offset = 0;
mddev->default_bitmap_offset = 1024 >> 9;
@@ -1149,7 +1157,6 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
} else if (mddev->pers == NULL) {
/* Insist of good event counter while assembling */
- __u64 ev1 = le64_to_cpu(sb->events);
++ev1;
if (ev1 < mddev->events)
return -EINVAL;
@@ -1157,12 +1164,13 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
/* If adding to array with a bitmap, then we can accept an
* older device, but not too old.
*/
- __u64 ev1 = le64_to_cpu(sb->events);
if (ev1 < mddev->bitmap->events_cleared)
return 0;
- } else /* just a hot-add of a new device, leave raid_disk at -1 */
- return 0;
-
+ } else {
+ if (ev1 < mddev->events)
+ /* just a hot-add of a new device, leave raid_disk at -1 */
+ return 0;
+ }
if (mddev->level != LEVEL_MULTIPATH) {
int role;
rdev->desc_nr = le32_to_cpu(sb->dev_number);
@@ -1174,7 +1182,11 @@ static int super_1_validate(mddev_t *mddev, mdk_rdev_t *rdev)
set_bit(Faulty, &rdev->flags);
break;
default:
- set_bit(In_sync, &rdev->flags);
+ if ((le32_to_cpu(sb->feature_map) &
+ MD_FEATURE_RECOVERY_OFFSET))
+ rdev->recovery_offset = le64_to_cpu(sb->recovery_offset);
+ else
+ set_bit(In_sync, &rdev->flags);
rdev->raid_disk = role;
break;
}
@@ -1198,6 +1210,7 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->feature_map = 0;
sb->pad0 = 0;
+ sb->recovery_offset = cpu_to_le64(0);
memset(sb->pad1, 0, sizeof(sb->pad1));
memset(sb->pad2, 0, sizeof(sb->pad2));
memset(sb->pad3, 0, sizeof(sb->pad3));
@@ -1218,6 +1231,14 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->bitmap_offset = cpu_to_le32((__u32)mddev->bitmap_offset);
sb->feature_map = cpu_to_le32(MD_FEATURE_BITMAP_OFFSET);
}
+
+ if (rdev->raid_disk >= 0 &&
+ !test_bit(In_sync, &rdev->flags) &&
+ rdev->recovery_offset > 0) {
+ sb->feature_map |= cpu_to_le32(MD_FEATURE_RECOVERY_OFFSET);
+ sb->recovery_offset = cpu_to_le64(rdev->recovery_offset);
+ }
+
if (mddev->reshape_position != MaxSector) {
sb->feature_map |= cpu_to_le32(MD_FEATURE_RESHAPE_ACTIVE);
sb->reshape_position = cpu_to_le64(mddev->reshape_position);
@@ -1242,11 +1263,12 @@ static void super_1_sync(mddev_t *mddev, mdk_rdev_t *rdev)
sb->dev_roles[i] = cpu_to_le16(0xfffe);
else if (test_bit(In_sync, &rdev2->flags))
sb->dev_roles[i] = cpu_to_le16(rdev2->raid_disk);
+ else if (rdev2->raid_disk >= 0 && rdev2->recovery_offset > 0)
+ sb->dev_roles[i] = cpu_to_le16(rdev2->raid_disk);
else
sb->dev_roles[i] = cpu_to_le16(0xffff);
}
- sb->recovery_offset = cpu_to_le64(0); /* not supported yet */
sb->sb_csum = calc_sb_1_csum(sb);
}
@@ -1507,7 +1529,7 @@ static void print_rdev(mdk_rdev_t *rdev)
printk(KERN_INFO "md: no rdev superblock!\n");
}
-void md_print_devices(void)
+static void md_print_devices(void)
{
struct list_head *tmp, *tmp2;
mdk_rdev_t *rdev;
@@ -1536,15 +1558,30 @@ void md_print_devices(void)
}
-static void sync_sbs(mddev_t * mddev)
+static void sync_sbs(mddev_t * mddev, int nospares)
{
+ /* Update each superblock (in-memory image), but
+ * if we are allowed to, skip spares which already
+ * have the right event counter, or have one earlier
+ * (which would mean they aren't being marked as dirty
+ * with the rest of the array)
+ */
mdk_rdev_t *rdev;
struct list_head *tmp;
ITERATE_RDEV(mddev,rdev,tmp) {
- super_types[mddev->major_version].
- sync_super(mddev, rdev);
- rdev->sb_loaded = 1;
+ if (rdev->sb_events == mddev->events ||
+ (nospares &&
+ rdev->raid_disk < 0 &&
+ (rdev->sb_events&1)==0 &&
+ rdev->sb_events+1 == mddev->events)) {
+ /* Don't update this superblock */
+ rdev->sb_loaded = 2;
+ } else {
+ super_types[mddev->major_version].
+ sync_super(mddev, rdev);
+ rdev->sb_loaded = 1;
+ }
}
}
@@ -1554,12 +1591,42 @@ void md_update_sb(mddev_t * mddev)
struct list_head *tmp;
mdk_rdev_t *rdev;
int sync_req;
+ int nospares = 0;
repeat:
spin_lock_irq(&mddev->write_lock);
sync_req = mddev->in_sync;
mddev->utime = get_seconds();
- mddev->events ++;
+ if (mddev->sb_dirty == 3)
+ /* just a clean<-> dirty transition, possibly leave spares alone,
+ * though if events isn't the right even/odd, we will have to do
+ * spares after all
+ */
+ nospares = 1;
+
+ /* If this is just a dirty<->clean transition, and the array is clean
+ * and 'events' is odd, we can roll back to the previous clean state */
+ if (mddev->sb_dirty == 3
+ && (mddev->in_sync && mddev->recovery_cp == MaxSector)
+ && (mddev->events & 1))
+ mddev->events--;
+ else {
+ /* otherwise we have to go forward and ... */
+ mddev->events ++;
+ if (!mddev->in_sync || mddev->recovery_cp != MaxSector) { /* not clean */
+ /* .. if the array isn't clean, insist on an odd 'events' */
+ if ((mddev->events&1)==0) {
+ mddev->events++;
+ nospares = 0;
+ }
+ } else {
+ /* otherwise insist on an even 'events' (for clean states) */
+ if ((mddev->events&1)) {
+ mddev->events++;
+ nospares = 0;
+ }
+ }
+ }
if (!mddev->events) {
/*
@@ -1571,7 +1638,7 @@ repeat:
mddev->events --;
}
mddev->sb_dirty = 2;
- sync_sbs(mddev);
+ sync_sbs(mddev, nospares);
/*
* do not write anything to disk if using
@@ -1593,6 +1660,8 @@ repeat:
ITERATE_RDEV(mddev,rdev,tmp) {
char b[BDEVNAME_SIZE];
dprintk(KERN_INFO "md: ");
+ if (rdev->sb_loaded != 1)
+ continue; /* no noise on spare devices */
if (test_bit(Faulty, &rdev->flags))
dprintk("(skipping faulty ");
@@ -1604,6 +1673,7 @@ repeat:
dprintk(KERN_INFO "(write) %s's sb offset: %llu\n",
bdevname(rdev->bdev,b),
(unsigned long long)rdev->sb_offset);
+ rdev->sb_events = mddev->events;
} else
dprintk(")\n");
@@ -1667,6 +1737,10 @@ state_show(mdk_rdev_t *rdev, char *page)
len += sprintf(page+len, "%sin_sync",sep);
sep = ",";
}
+ if (test_bit(WriteMostly, &rdev->flags)) {
+ len += sprintf(page+len, "%swrite_mostly",sep);
+ sep = ",";
+ }
if (!test_bit(Faulty, &rdev->flags) &&
!test_bit(In_sync, &rdev->flags)) {
len += sprintf(page+len, "%sspare", sep);
@@ -1675,8 +1749,40 @@ state_show(mdk_rdev_t *rdev, char *page)
return len+sprintf(page+len, "\n");
}
+static ssize_t
+state_store(mdk_rdev_t *rdev, const char *buf, size_t len)
+{
+ /* can write
+ * faulty - simulates and error
+ * remove - disconnects the device
+ * writemostly - sets write_mostly
+ * -writemostly - clears write_mostly
+ */
+ int err = -EINVAL;
+ if (cmd_match(buf, "faulty") && rdev->mddev->pers) {
+ md_error(rdev->mddev, rdev);
+ err = 0;
+ } else if (cmd_match(buf, "remove")) {
+ if (rdev->raid_disk >= 0)
+ err = -EBUSY;
+ else {
+ mddev_t *mddev = rdev->mddev;
+ kick_rdev_from_array(rdev);
+ md_update_sb(mddev);
+ md_new_event(mddev);
+ err = 0;
+ }
+ } else if (cmd_match(buf, "writemostly")) {
+ set_bit(WriteMostly, &rdev->flags);
+ err = 0;
+ } else if (cmd_match(buf, "-writemostly")) {
+ clear_bit(WriteMostly, &rdev->flags);
+ err = 0;
+ }
+ return err ? err : len;
+}
static struct rdev_sysfs_entry
-rdev_state = __ATTR_RO(state);
+rdev_state = __ATTR(state, 0644, state_show, state_store);
static ssize_t
super_show(mdk_rdev_t *rdev, char *page)
@@ -1873,6 +1979,7 @@ static mdk_rdev_t *md_import_device(dev_t newdev, int super_format, int super_mi
rdev->desc_nr = -1;
rdev->flags = 0;
rdev->data_offset = 0;
+ rdev->sb_events = 0;
atomic_set(&rdev->nr_pending, 0);
atomic_set(&rdev->read_errors, 0);
atomic_set(&rdev->corrected_errors, 0);
@@ -1978,6 +2085,54 @@ static void analyze_sbs(mddev_t * mddev)
}
static ssize_t
+safe_delay_show(mddev_t *mddev, char *page)
+{
+ int msec = (mddev->safemode_delay*1000)/HZ;
+ return sprintf(page, "%d.%03d\n", msec/1000, msec%1000);
+}
+static ssize_t
+safe_delay_store(mddev_t *mddev, const char *cbuf, size_t len)
+{
+ int scale=1;
+ int dot=0;
+ int i;
+ unsigned long msec;
+ char buf[30];
+ char *e;
+ /* remove a period, and count digits after it */
+ if (len >= sizeof(buf))
+ return -EINVAL;
+ strlcpy(buf, cbuf, len);
+ buf[len] = 0;
+ for (i=0; i<len; i++) {
+ if (dot) {
+ if (isdigit(buf[i])) {
+ buf[i-1] = buf[i];
+ scale *= 10;
+ }
+ buf[i] = 0;
+ } else if (buf[i] == '.') {
+ dot=1;
+ buf[i] = 0;
+ }
+ }
+ msec = simple_strtoul(buf, &e, 10);
+ if (e == buf || (*e && *e != '\n'))
+ return -EINVAL;
+ msec = (msec * 1000) / scale;
+ if (msec == 0)
+ mddev->safemode_delay = 0;
+ else {
+ mddev->safemode_delay = (msec*HZ)/1000;
+ if (mddev->safemode_delay == 0)
+ mddev->safemode_delay = 1;
+ }
+ return len;
+}
+static struct md_sysfs_entry md_safe_delay =
+__ATTR(safe_mode_delay, 0644,safe_delay_show, safe_delay_store);
+
+static ssize_t
level_show(mddev_t *mddev, char *page)
{
struct mdk_personality *p = mddev->pers;
@@ -2012,6 +2167,32 @@ level_store(mddev_t *mddev, const char *buf, size_t len)
static struct md_sysfs_entry md_level =
__ATTR(level, 0644, level_show, level_store);
+
+static ssize_t
+layout_show(mddev_t *mddev, char *page)
+{
+ /* just a number, not meaningful for all levels */
+ return sprintf(page, "%d\n", mddev->layout);
+}
+
+static ssize_t
+layout_store(mddev_t *mddev, const char *buf, size_t len)
+{
+ char *e;
+ unsigned long n = simple_strtoul(buf, &e, 10);
+ if (mddev->pers)
+ return -EBUSY;
+
+ if (!*buf || (*e && *e != '\n'))
+ return -EINVAL;
+
+ mddev->layout = n;
+ return len;
+}
+static struct md_sysfs_entry md_layout =
+__ATTR(layout, 0655, layout_show, layout_store);
+
+
static ssize_t
raid_disks_show(mddev_t *mddev, char *page)
{
@@ -2067,6 +2248,200 @@ static struct md_sysfs_entry md_chunk_size =
__ATTR(chunk_size, 0644, chunk_size_show, chunk_size_store);
static ssize_t
+resync_start_show(mddev_t *mddev, char *page)
+{
+ return sprintf(page, "%llu\n", (unsigned long long)mddev->recovery_cp);
+}
+
+static ssize_t
+resync_start_store(mddev_t *mddev, const char *buf, size_t len)
+{
+ /* can only set chunk_size if array is not yet active */
+ char *e;
+ unsigned long long n = simple_strtoull(buf, &e, 10);
+
+ if (mddev->pers)
+ return -EBUSY;
+ if (!*buf || (*e && *e != '\n'))
+ return -EINVAL;
+
+ mddev->recovery_cp = n;
+ return len;
+}
+static struct md_sysfs_entry md_resync_start =
+__ATTR(resync_start, 0644, resync_start_show, resync_start_store);
+
+/*
+ * The array state can be:
+ *
+ * clear
+ * No devices, no size, no level
+ * Equivalent to STOP_ARRAY ioctl
+ * inactive
+ * May have some settings, but array is not active
+ * all IO results in error
+ * When written, doesn't tear down array, but just stops it
+ * suspended (not supported yet)
+ * All IO requests will block. The array can be reconfigured.
+ * Writing this, if accepted, will block until array is quiessent
+ * readonly
+ * no resync can happen. no superblocks get written.
+ * write requests fail
+ * read-auto
+ * like readonly, but behaves like 'clean' on a write request.
+ *
+ * clean - no pending writes, but otherwise active.
+ * When written to inactive array, starts without resync
+ * If a write request arrives then
+ * if metadata is known, mark 'dirty' and switch to 'active'.
+ * if not known, block and switch to write-pending
+ * If written to an active array that has pending writes, then fails.
+ * active
+ * fully active: IO and resync can be happening.
+ * When written to inactive array, starts with resync
+ *
+ * write-pending
+ * clean, but writes are blocked waiting for 'active' to be written.
+ *
+ * active-idle
+ * like active, but no writes have been seen for a while (100msec).
+ *
+ */
+enum array_state { clear, inactive, suspended, readonly, read_auto, clean, active,
+ write_pending, active_idle, bad_word};
+static char *array_states[] = {
+ "clear", "inactive", "suspended", "readonly", "read-auto", "clean", "active",
+ "write-pending", "active-idle", NULL };
+
+static int match_word(const char *word, char **list)
+{
+ int n;
+ for (n=0; list[n]; n++)
+ if (cmd_match(word, list[n]))
+ break;
+ return n;
+}
+
+static ssize_t
+array_state_show(mddev_t *mddev, char *page)
+{
+ enum array_state st = inactive;
+
+ if (mddev->pers)
+ switch(mddev->ro) {
+ case 1:
+ st = readonly;
+ break;
+ case 2:
+ st = read_auto;
+ break;
+ case 0:
+ if (mddev->in_sync)
+ st = clean;
+ else if (mddev->safemode)
+ st = active_idle;
+ else
+ st = active;
+ }
+ else {
+ if (list_empty(&mddev->disks) &&
+ mddev->raid_disks == 0 &&
+ mddev->size == 0)
+ st = clear;
+ else
+ st = inactive;
+ }
+ return sprintf(page, "%s\n", array_states[st]);
+}
+
+static int do_md_stop(mddev_t * mddev, int ro);
+static int do_md_run(mddev_t * mddev);
+static int restart_array(mddev_t *mddev);
+
+static ssize_t
+array_state_store(mddev_t *mddev, const char *buf, size_t len)
+{
+ int err = -EINVAL;
+ enum array_state st = match_word(buf, array_states);
+ switch(st) {
+ case bad_word:
+ break;
+ case clear:
+ /* stopping an active array */
+ if (mddev->pers) {
+ if (atomic_read(&mddev->active) > 1)
+ return -EBUSY;
+ err = do_md_stop(mddev, 0);
+ }
+ break;
+ case inactive:
+ /* stopping an active array */
+ if (mddev->pers) {
+ if (atomic_read(&mddev->active) > 1)
+ return -EBUSY;
+ err = do_md_stop(mddev, 2);
+ }
+ break;
+ case suspended:
+ break; /* not supported yet */
+ case readonly:
+ if (mddev->pers)
+ err = do_md_stop(mddev, 1);
+ else {
+ mddev->ro = 1;
+ err = do_md_run(mddev);
+ }
+ break;
+ case read_auto:
+ /* stopping an active array */
+ if (mddev->pers) {
+ err = do_md_stop(mddev, 1);
+ if (err == 0)
+ mddev->ro = 2; /* FIXME mark devices writable */
+ } else {
+ mddev->ro = 2;
+ err = do_md_run(mddev);
+ }
+ break;
+ case clean:
+ if (mddev->pers) {
+ restart_array(mddev);
+ spin_lock_irq(&mddev->write_lock);
+ if (atomic_read(&mddev->writes_pending) == 0) {
+ mddev->in_sync = 1;
+ mddev->sb_dirty = 1;
+ }
+ spin_unlock_irq(&mddev->write_lock);
+ } else {
+ mddev->ro = 0;
+ mddev->recovery_cp = MaxSector;
+ err = do_md_run(mddev);
+ }
+ break;
+ case active:
+ if (mddev->pers) {
+ restart_array(mddev);
+ mddev->sb_dirty = 0;
+ wake_up(&mddev->sb_wait);
+ err = 0;
+ } else {
+ mddev->ro = 0;
+ err = do_md_run(mddev);
+ }
+ break;
+ case write_pending:
+ case active_idle:
+ /* these cannot be set */
+ break;
+ }
+ if (err)
+ return err;
+ else
+ return len;
+}
+static struct md_sysfs_entry md_array_state = __ATTR(array_state, 0644, array_state_show, array_state_store);
+
+static ssize_t
null_show(mddev_t *mddev, char *page)
{
return -EINVAL;
@@ -2428,11 +2803,15 @@ __ATTR(suspend_hi, S_IRUGO|S_IWUSR, suspend_hi_show, suspend_hi_store);
static struct attribute *md_default_attrs[] = {
&md_level.attr,
+ &md_layout.attr,
&md_raid_disks.attr,
&md_chunk_size.attr,
&md_size.attr,
+ &md_resync_start.attr,
&md_metadata.attr,
&md_new_device.attr,
+ &md_safe_delay.attr,
+ &md_array_state.attr,
NULL,
};
@@ -2553,8 +2932,6 @@ static struct kobject *md_probe(dev_t dev, int *part, void *data)
return NULL;
}
-void md_wakeup_thread(mdk_thread_t *thread);
-
static void md_safemode_timeout(unsigned long data)
{
mddev_t *mddev = (mddev_t *) data;
@@ -2708,7 +3085,7 @@ static int do_md_run(mddev_t * mddev)
mddev->safemode = 0;
mddev->safemode_timer.function = md_safemode_timeout;
mddev->safemode_timer.data = (unsigned long) mddev;
- mddev->safemode_delay = (20 * HZ)/1000 +1; /* 20 msec delay */
+ mddev->safemode_delay = (200 * HZ)/1000 +1; /* 200 msec delay */
mddev->in_sync = 1;
ITERATE_RDEV(mddev,rdev,tmp)
@@ -2736,6 +3113,36 @@ static int do_md_run(mddev_t * mddev)
mddev->queue->queuedata = mddev;
mddev->queue->make_request_fn = mddev->pers->make_request;
+ /* If there is a partially-recovered drive we need to
+ * start recovery here. If we leave it to md_check_recovery,
+ * it will remove the drives and not do the right thing
+ */
+ if (mddev->degraded) {
+ struct list_head *rtmp;
+ int spares = 0;
+ ITERATE_RDEV(mddev,rdev,rtmp)
+ if (rdev->raid_disk >= 0 &&
+ !test_bit(In_sync, &rdev->flags) &&
+ !test_bit(Faulty, &rdev->flags))
+ /* complete an interrupted recovery */
+ spares++;
+ if (spares && mddev->pers->sync_request) {
+ mddev->recovery = 0;
+ set_bit(MD_RECOVERY_RUNNING, &mddev->recovery);
+ mddev->sync_thread = md_register_thread(md_do_sync,
+ mddev,
+ "%s_resync");
+ if (!mddev->sync_thread) {
+ printk(KERN_ERR "%s: could not start resync"
+ " thread...\n",
+ mdname(mddev));
+ /* leave the spares where they are, it shouldn't hurt */
+ mddev->recovery = 0;
+ } else
+ md_wakeup_thread(mddev->sync_thread);
+ }
+ }
+
mddev->changed = 1;
md_new_event(mddev);
return 0;
@@ -2769,18 +3176,47 @@ static int restart_array(mddev_t *mddev)
*/
set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
md_wakeup_thread(mddev->thread);
+ md_wakeup_thread(mddev->sync_thread);
err = 0;
- } else {
- printk(KERN_ERR "md: %s has no personality assigned.\n",
- mdname(mddev));
+ } else
err = -EINVAL;
- }
out:
return err;
}
-static int do_md_stop(mddev_t * mddev, int ro)
+/* similar to deny_write_access, but accounts for our holding a reference
+ * to the file ourselves */
+static int deny_bitmap_write_access(struct file * file)
+{
+ struct inode *inode = file->f_mapping->host;
+
+ spin_lock(&inode->i_lock);
+ if (atomic_read(&inode->i_writecount) > 1) {
+ spin_unlock(&inode->i_lock);
+ return -ETXTBSY;
+ }
+ atomic_set(&inode->i_writecount, -1);
+ spin_unlock(&inode->i_lock);
+
+ return 0;
+}
+
+static void restore_bitmap_write_access(struct file *file)
+{
+ struct inode *inode = file->f_mapping->host;
+
+ spin_lock(&inode->i_lock);
+ atomic_set(&inode->i_writecount, 1);
+ spin_unlock(&inode->i_lock);
+}
+
+/* mode:
+ * 0 - completely stop and dis-assemble array
+ * 1 - switch to readonly
+ * 2 - stop but do not disassemble array
+ */
+static int do_md_stop(mddev_t * mddev, int mode)
{
int err = 0;
struct gendisk *disk = mddev->gendisk;
@@ -2792,6 +3228,7 @@ static int do_md_stop(mddev_t * mddev, int ro)
}
if (mddev->sync_thread) {
+ set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
set_bit(MD_RECOVERY_INTR, &mddev->recovery);
md_unregister_thread(mddev->sync_thread);
mddev->sync_thread = NULL;
@@ -2801,12 +3238,15 @@ static int do_md_stop(mddev_t * mddev, int ro)
invalidate_partition(disk, 0);
- if (ro) {
+ switch(mode) {
+ case 1: /* readonly */
err = -ENXIO;
if (mddev->ro==1)
goto out;
mddev->ro = 1;
- } else {
+ break;
+ case 0: /* disassemble */
+ case 2: /* stop */
bitmap_flush(mddev);
md_super_wait(mddev);
if (mddev->ro)
@@ -2821,19 +3261,20 @@ static int do_md_stop(mddev_t * mddev, int ro)
if (mddev->ro)
mddev->ro = 0;
}
- if (!mddev->in_sync) {
+ if (!mddev->in_sync || mddev->sb_dirty) {
/* mark array as shutdown cleanly */
mddev->in_sync = 1;
md_update_sb(mddev);
}
- if (ro)
+ if (mode == 1)
set_disk_ro(disk, 1);
+ clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
}
/*
* Free resources if final stop
*/
- if (!ro) {
+ if (mode == 0) {
mdk_rdev_t *rdev;
struct list_head *tmp;
struct gendisk *disk;
@@ -2841,7 +3282,7 @@ static int do_md_stop(mddev_t * mddev, int ro)
bitmap_destroy(mddev);
if (mddev->bitmap_file) {
- atomic_set(&mddev->bitmap_file->f_dentry->d_inode->i_writecount, 1);
+ restore_bitmap_write_access(mddev->bitmap_file);
fput(mddev->bitmap_file);
mddev->bitmap_file = NULL;
}
@@ -2857,11 +3298,15 @@ static int do_md_stop(mddev_t * mddev, int ro)
export_array(mddev);
mddev->array_size = 0;
+ mddev->size = 0;
+ mddev->raid_disks = 0;
+ mddev->recovery_cp = 0;
+
disk = mddev->gendisk;
if (disk)
set_capacity(disk, 0);
mddev->changed = 1;
- } else
+ } else if (mddev->pers)
printk(KERN_INFO "md: %s switched to read-only mode.\n",
mdname(mddev));
err = 0;
@@ -3264,6 +3709,17 @@ static int add_new_disk(mddev_t * mddev, mdu_disk_info_t *info)
rdev->raid_disk = -1;
err = bind_rdev_to_array(rdev, mddev);
+ if (!err && !mddev->pers->hot_remove_disk) {
+ /* If there is hot_add_disk but no hot_remove_disk
+ * then added disks for geometry changes,
+ * and should be added immediately.
+ */
+ super_types[mddev->major_version].
+ validate_super(mddev, rdev);
+ err = mddev->pers->hot_add_disk(mddev, rdev);
+ if (err)
+ unbind_rdev_from_array(rdev);
+ }
if (err)
export_rdev(rdev);
@@ -3434,23 +3890,6 @@ abort_export:
return err;
}
-/* similar to deny_write_access, but accounts for our holding a reference
- * to the file ourselves */
-static int deny_bitmap_write_access(struct file * file)
-{
- struct inode *inode = file->f_mapping->host;
-
- spin_lock(&inode->i_lock);
- if (atomic_read(&inode->i_writecount) > 1) {
- spin_unlock(&inode->i_lock);
- return -ETXTBSY;
- }
- atomic_set(&inode->i_writecount, -1);
- spin_unlock(&inode->i_lock);
-
- return 0;
-}
-
static int set_bitmap_file(mddev_t *mddev, int fd)
{
int err;
@@ -3491,12 +3930,17 @@ static int set_bitmap_file(mddev_t *mddev, int fd)
mddev->pers->quiesce(mddev, 1);
if (fd >= 0)
err = bitmap_create(mddev);
- if (fd < 0 || err)
+ if (fd < 0 || err) {
bitmap_destroy(mddev);
+ fd = -1; /* make sure to put the file */
+ }
mddev->pers->quiesce(mddev, 0);
- } else if (fd < 0) {
- if (mddev->bitmap_file)
+ }
+ if (fd < 0) {
+ if (mddev->bitmap_file) {
+ restore_bitmap_write_access(mddev->bitmap_file);
fput(mddev->bitmap_file);
+ }
mddev->bitmap_file = NULL;
}
@@ -3977,11 +4421,6 @@ static int md_ioctl(struct inode *inode, struct file *file,
goto done_unlock;
default:
- if (_IOC_TYPE(cmd) == MD_MAJOR)
- printk(KERN_WARNING "md: %s(pid %d) used"
- " obsolete MD ioctl, upgrade your"
- " software to use new ictls.\n",
- current->comm, current->pid);
err = -EINVAL;
goto abort_unlock;
}
@@ -4586,7 +5025,7 @@ void md_write_start(mddev_t *mddev, struct bio *bi)
spin_lock_irq(&mddev->write_lock);
if (mddev->in_sync) {
mddev->in_sync = 0;
- mddev->sb_dirty = 1;
+ mddev->sb_dirty = 3;
md_wakeup_thread(mddev->thread);
}
spin_unlock_irq(&mddev->write_lock);
@@ -4599,7 +5038,7 @@ void md_write_end(mddev_t *mddev)
if (atomic_dec_and_test(&mddev->writes_pending)) {
if (mddev->safemode == 2)
md_wakeup_thread(mddev->thread);
- else
+ else if (mddev->safemode_delay)
mod_timer(&mddev->safemode_timer, jiffies + mddev->safemode_delay);
}
}
@@ -4620,10 +5059,14 @@ void md_do_sync(mddev_t *mddev)
struct list_head *tmp;
sector_t last_check;
int skipped = 0;
+ struct list_head *rtmp;
+ mdk_rdev_t *rdev;
/* just incase thread restarts... */
if (test_bit(MD_RECOVERY_DONE, &mddev->recovery))
return;
+ if (mddev->ro) /* never try to sync a read-only array */
+ return;
/* we overload curr_resync somewhat here.
* 0 == not engaged in resync at all
@@ -4682,17 +5125,30 @@ void md_do_sync(mddev_t *mddev)
}
} while (mddev->curr_resync < 2);
+ j = 0;
if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
/* resync follows the size requested by the personality,
* which defaults to physical size, but can be virtual size
*/
max_sectors = mddev->resync_max_sectors;
mddev->resync_mismatches = 0;
+ /* we don't use the checkpoint if there's a bitmap */
+ if (!mddev->bitmap &&
+ !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
+ j = mddev->recovery_cp;
} else if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
max_sectors = mddev->size << 1;
- else
+ else {
/* recovery follows the physical size of devices */
max_sectors = mddev->size << 1;
+ j = MaxSector;
+ ITERATE_RDEV(mddev,rdev,rtmp)
+ if (rdev->raid_disk >= 0 &&
+ !test_bit(Faulty, &rdev->flags) &&
+ !test_bit(In_sync, &rdev->flags) &&
+ rdev->recovery_offset < j)
+ j = rdev->recovery_offset;
+ }
printk(KERN_INFO "md: syncing RAID array %s\n", mdname(mddev));
printk(KERN_INFO "md: minimum _guaranteed_ reconstruction speed:"
@@ -4702,12 +5158,7 @@ void md_do_sync(mddev_t *mddev)
speed_max(mddev));
is_mddev_idle(mddev); /* this also initializes IO event counters */
- /* we don't use the checkpoint if there's a bitmap */
- if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery) && !mddev->bitmap
- && ! test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery))
- j = mddev->recovery_cp;
- else
- j = 0;
+
io_sectors = 0;
for (m = 0; m < SYNC_MARKS; m++) {
mark[m] = jiffies;
@@ -4828,15 +5279,28 @@ void md_do_sync(mddev_t *mddev)
if (!test_bit(MD_RECOVERY_ERR, &mddev->recovery) &&
test_bit(MD_RECOVERY_SYNC, &mddev->recovery) &&
!test_bit(MD_RECOVERY_CHECK, &mddev->recovery) &&
- mddev->curr_resync > 2 &&
- mddev->curr_resync >= mddev->recovery_cp) {
- if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
- printk(KERN_INFO
- "md: checkpointing recovery of %s.\n",
- mdname(mddev));
- mddev->recovery_cp = mddev->curr_resync;
- } else
- mddev->recovery_cp = MaxSector;
+ mddev->curr_resync > 2) {
+ if (test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
+ if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
+ if (mddev->curr_resync >= mddev->recovery_cp) {
+ printk(KERN_INFO
+ "md: checkpointing recovery of %s.\n",
+ mdname(mddev));
+ mddev->recovery_cp = mddev->curr_resync;
+ }
+ } else
+ mddev->recovery_cp = MaxSector;
+ } else {
+ if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery))
+ mddev->curr_resync = MaxSector;
+ ITERATE_RDEV(mddev,rdev,rtmp)
+ if (rdev->raid_disk >= 0 &&
+ !test_bit(Faulty, &rdev->flags) &&
+ !test_bit(In_sync, &rdev->flags) &&
+ rdev->recovery_offset < mddev->curr_resync)
+ rdev->recovery_offset = mddev->curr_resync;
+ mddev->sb_dirty = 1;
+ }
}
skip:
@@ -4908,7 +5372,7 @@ void md_check_recovery(mddev_t *mddev)
if (mddev->safemode && !atomic_read(&mddev->writes_pending) &&
!mddev->in_sync && mddev->recovery_cp == MaxSector) {
mddev->in_sync = 1;
- mddev->sb_dirty = 1;
+ mddev->sb_dirty = 3;
}
if (mddev->safemode == 1)
mddev->safemode = 0;
@@ -4957,6 +5421,8 @@ void md_check_recovery(mddev_t *mddev)
clear_bit(MD_RECOVERY_INTR, &mddev->recovery);
clear_bit(MD_RECOVERY_DONE, &mddev->recovery);
+ if (test_bit(MD_RECOVERY_FROZEN, &mddev->recovery))
+ goto unlock;
/* no recovery is running.
* remove any failed drives, then
* add spares if possible.
@@ -4979,6 +5445,7 @@ void md_check_recovery(mddev_t *mddev)
ITERATE_RDEV(mddev,rdev,rtmp)
if (rdev->raid_disk < 0
&& !test_bit(Faulty, &rdev->flags)) {
+ rdev->recovery_offset = 0;
if (mddev->pers->hot_add_disk(mddev,rdev)) {
char nm[20];
sprintf(nm, "rd%d", rdev->raid_disk);
@@ -5216,7 +5683,6 @@ EXPORT_SYMBOL(md_write_end);
EXPORT_SYMBOL(md_register_thread);
EXPORT_SYMBOL(md_unregister_thread);
EXPORT_SYMBOL(md_wakeup_thread);
-EXPORT_SYMBOL(md_print_devices);
EXPORT_SYMBOL(md_check_recovery);
MODULE_LICENSE("GPL");
MODULE_ALIAS("md");
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 4070eff6f0f..cead918578a 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -374,26 +374,26 @@ static int raid1_end_write_request(struct bio *bio, unsigned int bytes_done, int
* already.
*/
if (atomic_dec_and_test(&r1_bio->remaining)) {
- if (test_bit(R1BIO_BarrierRetry, &r1_bio->state)) {
+ if (test_bit(R1BIO_BarrierRetry, &r1_bio->state))
reschedule_retry(r1_bio);
- goto out;
- }
- /* it really is the end of this request */
- if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
- /* free extra copy of the data pages */
- int i = bio->bi_vcnt;
- while (i--)
- safe_put_page(bio->bi_io_vec[i].bv_page);
+ else {
+ /* it really is the end of this request */
+ if (test_bit(R1BIO_BehindIO, &r1_bio->state)) {
+ /* free extra copy of the data pages */
+ int i = bio->bi_vcnt;
+ while (i--)
+ safe_put_page(bio->bi_io_vec[i].bv_page);
+ }
+ /* clear the bitmap if all writes complete successfully */
+ bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
+ r1_bio->sectors,
+ !test_bit(R1BIO_Degraded, &r1_bio->state),
+ behind);
+ md_write_end(r1_bio->mddev);
+ raid_end_bio_io(r1_bio);
}
- /* clear the bitmap if all writes complete successfully */
- bitmap_endwrite(r1_bio->mddev->bitmap, r1_bio->sector,
- r1_bio->sectors,
- !test_bit(R1BIO_Degraded, &r1_bio->state),
- behind);
- md_write_end(r1_bio->mddev);
- raid_end_bio_io(r1_bio);
}
- out:
+
if (to_put)
bio_put(to_put);
@@ -1625,6 +1625,12 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
/* before building a request, check if we can skip these blocks..
* This call the bitmap_start_sync doesn't actually record anything
*/
+ if (mddev->bitmap == NULL &&
+ mddev->recovery_cp == MaxSector &&
+ conf->fullsync == 0) {
+ *skipped = 1;
+ return max_sector - sector_nr;
+ }
if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
!conf->fullsync && !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
/* We can skip this block, and probably several more */
@@ -1888,7 +1894,8 @@ static int run(mddev_t *mddev)
disk = conf->mirrors + i;
- if (!disk->rdev) {
+ if (!disk->rdev ||
+ !test_bit(In_sync, &disk->rdev->flags)) {
disk->head_position = 0;
mddev->degraded++;
}
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1440935414e..7f636283a1b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -29,6 +29,7 @@
* raid_disks
* near_copies (stored in low byte of layout)
* far_copies (stored in second byte of layout)
+ * far_offset (stored in bit 16 of layout )
*
* The data to be stored is divided into chunks using chunksize.
* Each device is divided into far_copies sections.
@@ -36,10 +37,14 @@
* near_copies copies of each chunk is stored (each on a different drive).
* The starting device for each section is offset near_copies from the starting
* device of the previous section.
- * Thus there are (near_copies*far_copies) of each chunk, and each is on a different
+ * Thus they are (near_copies*far_copies) of each chunk, and each is on a different
* drive.
* near_copies and far_copies must be at least one, and their product is at most
* raid_disks.
+ *
+ * If far_offset is true, then the far_copies are handled a bit differently.
+ * The copies are still in different stripes, but instead of be very far apart
+ * on disk, there are adjacent stripes.
*/
/*
@@ -357,8 +362,7 @@ static int raid10_end_write_request(struct bio *bio, unsigned int bytes_done, in
* With this layout, and block is never stored twice on the one device.
*
* raid10_find_phys finds the sector offset of a given virtual sector
- * on each device that it is on. If a block isn't on a device,
- * that entry in the array is set to MaxSector.
+ * on each device that it is on.
*
* raid10_find_virt does the reverse mapping, from a device and a
* sector offset to a virtual address
@@ -381,6 +385,8 @@ static void raid10_find_phys(conf_t *conf, r10bio_t *r10bio)
chunk *= conf->near_copies;
stripe = chunk;
dev = sector_div(stripe, conf->raid_disks);
+ if (conf->far_offset)
+ stripe *= conf->far_copies;
sector += stripe << conf->chunk_shift;
@@ -414,16 +420,24 @@ static sector_t raid10_find_virt(conf_t *conf, sector_t sector, int dev)
{
sector_t offset, chunk, vchunk;
- while (sector > conf->stride) {
- sector -= conf->stride;
- if (dev < conf->near_copies)
- dev += conf->raid_disks - conf->near_copies;
- else
- dev -= conf->near_copies;
- }
-
offset = sector & conf->chunk_mask;
- chunk = sector >> conf->chunk_shift;
+ if (conf->far_offset) {
+ int fc;
+ chunk = sector >> conf->chunk_shift;
+ fc = sector_div(chunk, conf->far_copies);
+ dev -= fc * conf->near_copies;
+ if (dev < 0)
+ dev += conf->raid_disks;
+ } else {
+ while (sector > conf->stride) {
+ sector -= conf->stride;
+ if (dev < conf->near_copies)
+ dev += conf->raid_disks - conf->near_copies;
+ else
+ dev -= conf->near_copies;
+ }
+ chunk = sector >> conf->chunk_shift;
+ }
vchunk = chunk * conf->raid_disks + dev;
sector_div(vchunk, conf->near_copies);
return (vchunk << conf->chunk_shift) + offset;
@@ -900,9 +914,12 @@ static void status(struct seq_file *seq, mddev_t *mddev)
seq_printf(seq, " %dK chunks", mddev->chunk_size/1024);
if (conf->near_copies > 1)
seq_printf(seq, " %d near-copies", conf->near_copies);
- if (conf->far_copies > 1)
- seq_printf(seq, " %d far-copies", conf->far_copies);
-
+ if (conf->far_copies > 1) {
+ if (conf->far_offset)
+ seq_printf(seq, " %d offset-copies", conf->far_copies);
+ else
+ seq_printf(seq, " %d far-copies", conf->far_copies);
+ }
seq_printf(seq, " [%d/%d] [", conf->raid_disks,
conf->working_disks);
for (i = 0; i < conf->raid_disks; i++)
@@ -1915,7 +1932,7 @@ static int run(mddev_t *mddev)
mirror_info_t *disk;
mdk_rdev_t *rdev;
struct list_head *tmp;
- int nc, fc;
+ int nc, fc, fo;
sector_t stride, size;
if (mddev->chunk_size == 0) {
@@ -1925,8 +1942,9 @@ static int run(mddev_t *mddev)
nc = mddev->layout & 255;
fc = (mddev->layout >> 8) & 255;
+ fo = mddev->layout & (1<<16);
if ((nc*fc) <2 || (nc*fc) > mddev->raid_disks ||
- (mddev->layout >> 16)) {
+ (mddev->layout >> 17)) {
printk(KERN_ERR "raid10: %s: unsupported raid10 layout: 0x%8x\n",
mdname(mddev), mddev->layout);
goto out;
@@ -1958,12 +1976,16 @@ static int run(mddev_t *mddev)
conf->near_copies = nc;
conf->far_copies = fc;
conf->copies = nc*fc;
+ conf->far_offset = fo;
conf->chunk_mask = (sector_t)(mddev->chunk_size>>9)-1;
conf->chunk_shift = ffz(~mddev->chunk_size) - 9;
- stride = mddev->size >> (conf->chunk_shift-1);
- sector_div(stride, fc);
- conf->stride = stride << conf->chunk_shift;
-
+ if (fo)
+ conf->stride = 1 << conf->chunk_shift;
+ else {
+ stride = mddev->size >> (conf->chunk_shift-1);
+ sector_div(stride, fc);
+ conf->stride = stride << conf->chunk_shift;
+ }
conf->r10bio_pool = mempool_create(NR_RAID10_BIOS, r10bio_pool_alloc,
r10bio_pool_free, conf);
if (!conf->r10bio_pool) {
@@ -2015,7 +2037,8 @@ static int run(mddev_t *mddev)
disk = conf->mirrors + i;
- if (!disk->rdev) {
+ if (!disk->rdev ||
+ !test_bit(In_sync, &rdev->flags)) {
disk->head_position = 0;
mddev->degraded++;
}
@@ -2037,7 +2060,13 @@ static int run(mddev_t *mddev)
/*
* Ok, everything is just fine now
*/
- size = conf->stride * conf->raid_disks;
+ if (conf->far_offset) {
+ size = mddev->size >> (conf->chunk_shift-1);
+ size *= conf->raid_disks;
+ size <<= conf->chunk_shift;
+ sector_div(size, conf->far_copies);
+ } else
+ size = conf->stride * conf->raid_disks;
sector_div(size, conf->near_copies);
mddev->array_size = size/2;
mddev->resync_max_sectors = size;
@@ -2050,7 +2079,7 @@ static int run(mddev_t *mddev)
* maybe...
*/
{
- int stripe = conf->raid_disks * mddev->chunk_size / PAGE_SIZE;
+ int stripe = conf->raid_disks * (mddev->chunk_size / PAGE_SIZE);
stripe /= conf->near_copies;
if (mddev->queue->backing_dev_info.ra_pages < 2* stripe)
mddev->queue->backing_dev_info.ra_pages = 2* stripe;
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 31843604049..f920e50ea12 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2,8 +2,11 @@
* raid5.c : Multiple Devices driver for Linux
* Copyright (C) 1996, 1997 Ingo Molnar, Miguel de Icaza, Gadi Oxman
* Copyright (C) 1999, 2000 Ingo Molnar
+ * Copyright (C) 2002, 2003 H. Peter Anvin
*
- * RAID-5 management functions.
+ * RAID-4/5/6 management functions.
+ * Thanks to Penguin Computing for making the RAID-6 development possible
+ * by donating a test server!
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -19,11 +22,11 @@
#include <linux/config.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <linux/raid/raid5.h>
#include <linux/highmem.h>
#include <linux/bitops.h>
#include <linux/kthread.h>
#include <asm/atomic.h>
+#include "raid6.h"
#include <linux/raid/bitmap.h>
@@ -68,6 +71,16 @@
#define __inline__
#endif
+#if !RAID6_USE_EMPTY_ZERO_PAGE
+/* In .bss so it's zeroed */
+const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(256)));
+#endif
+
+static inline int raid6_next_disk(int disk, int raid_disks)
+{
+ disk++;
+ return (disk < raid_disks) ? disk : 0;
+}
static void print_raid5_conf (raid5_conf_t *conf);
static void __release_stripe(raid5_conf_t *conf, struct stripe_head *sh)
@@ -104,7 +117,7 @@ static void release_stripe(struct stripe_head *sh)
{
raid5_conf_t *conf = sh->raid_conf;
unsigned long flags;
-
+
spin_lock_irqsave(&conf->device_lock, flags);
__release_stripe(conf, sh);
spin_unlock_irqrestore(&conf->device_lock, flags);
@@ -117,7 +130,7 @@ static inline void remove_hash(struct stripe_head *sh)
hlist_del_init(&sh->hash);
}
-static void insert_hash(raid5_conf_t *conf, struct stripe_head *sh)
+static inline void insert_hash(raid5_conf_t *conf, struct stripe_head *sh)
{
struct hlist_head *hp = stripe_hash(conf, sh->sector);
@@ -190,7 +203,7 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx, int
(unsigned long long)sh->sector);
remove_hash(sh);
-
+
sh->sector = sector;
sh->pd_idx = pd_idx;
sh->state = 0;
@@ -269,8 +282,9 @@ static struct stripe_head *get_active_stripe(raid5_conf_t *conf, sector_t sector
} else {
if (!test_bit(STRIPE_HANDLE, &sh->state))
atomic_inc(&conf->active_stripes);
- if (!list_empty(&sh->lru))
- list_del_init(&sh->lru);
+ if (list_empty(&sh->lru))
+ BUG();
+ list_del_init(&sh->lru);
}
}
} while (sh == NULL);
@@ -321,10 +335,9 @@ static int grow_stripes(raid5_conf_t *conf, int num)
return 1;
conf->slab_cache = sc;
conf->pool_size = devs;
- while (num--) {
+ while (num--)
if (!grow_one_stripe(conf))
return 1;
- }
return 0;
}
@@ -631,8 +644,7 @@ static void raid5_build_block (struct stripe_head *sh, int i)
dev->req.bi_private = sh;
dev->flags = 0;
- if (i != sh->pd_idx)
- dev->sector = compute_blocknr(sh, i);
+ dev->sector = compute_blocknr(sh, i);
}
static void error(mddev_t *mddev, mdk_rdev_t *rdev)
@@ -659,7 +671,7 @@ static void error(mddev_t *mddev, mdk_rdev_t *rdev)
" Operation continuing on %d devices\n",
bdevname(rdev->bdev,b), conf->working_disks);
}
-}
+}
/*
* Input: a 'big' sector number,
@@ -697,9 +709,12 @@ static sector_t raid5_compute_sector(sector_t r_sector, unsigned int raid_disks,
/*
* Select the parity disk based on the user selected algorithm.
*/
- if (conf->level == 4)
+ switch(conf->level) {
+ case 4:
*pd_idx = data_disks;
- else switch (conf->algorithm) {
+ break;
+ case 5:
+ switch (conf->algorithm) {
case ALGORITHM_LEFT_ASYMMETRIC:
*pd_idx = data_disks - stripe % raid_disks;
if (*dd_idx >= *pd_idx)
@@ -721,6 +736,39 @@ static sector_t raid5_compute_sector(sector_t r_sector, unsigned int raid_disks,
default:
printk(KERN_ERR "raid5: unsupported algorithm %d\n",
conf->algorithm);
+ }
+ break;
+ case 6:
+
+ /**** FIX THIS ****/
+ switch (conf->algorithm) {
+ case ALGORITHM_LEFT_ASYMMETRIC:
+ *pd_idx = raid_disks - 1 - (stripe % raid_disks);
+ if (*pd_idx == raid_disks-1)
+ (*dd_idx)++; /* Q D D D P */
+ else if (*dd_idx >= *pd_idx)
+ (*dd_idx) += 2; /* D D P Q D */
+ break;
+ case ALGORITHM_RIGHT_ASYMMETRIC:
+ *pd_idx = stripe % raid_disks;
+ if (*pd_idx == raid_disks-1)
+ (*dd_idx)++; /* Q D D D P */
+ else if (*dd_idx >= *pd_idx)
+ (*dd_idx) += 2; /* D D P Q D */
+ break;
+ case ALGORITHM_LEFT_SYMMETRIC:
+ *pd_idx = raid_disks - 1 - (stripe % raid_disks);
+ *dd_idx = (*pd_idx + 2 + *dd_idx) % raid_disks;
+ break;
+ case ALGORITHM_RIGHT_SYMMETRIC:
+ *pd_idx = stripe % raid_disks;
+ *dd_idx = (*pd_idx + 2 + *dd_idx) % raid_disks;
+ break;
+ default:
+ printk (KERN_CRIT "raid6: unsupported algorithm %d\n",
+ conf->algorithm);
+ }
+ break;
}
/*
@@ -742,12 +790,17 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i)
int chunk_number, dummy1, dummy2, dd_idx = i;
sector_t r_sector;
+
chunk_offset = sector_div(new_sector, sectors_per_chunk);
stripe = new_sector;
BUG_ON(new_sector != stripe);
-
- switch (conf->algorithm) {
+ if (i == sh->pd_idx)
+ return 0;
+ switch(conf->level) {
+ case 4: break;
+ case 5:
+ switch (conf->algorithm) {
case ALGORITHM_LEFT_ASYMMETRIC:
case ALGORITHM_RIGHT_ASYMMETRIC:
if (i > sh->pd_idx)
@@ -761,7 +814,37 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i)
break;
default:
printk(KERN_ERR "raid5: unsupported algorithm %d\n",
+ conf->algorithm);
+ }
+ break;
+ case 6:
+ data_disks = raid_disks - 2;
+ if (i == raid6_next_disk(sh->pd_idx, raid_disks))
+ return 0; /* It is the Q disk */
+ switch (conf->algorithm) {
+ case ALGORITHM_LEFT_ASYMMETRIC:
+ case ALGORITHM_RIGHT_ASYMMETRIC:
+ if (sh->pd_idx == raid_disks-1)
+ i--; /* Q D D D P */
+ else if (i > sh->pd_idx)
+ i -= 2; /* D D P Q D */
+ break;
+ case ALGORITHM_LEFT_SYMMETRIC:
+ case ALGORITHM_RIGHT_SYMMETRIC:
+ if (sh->pd_idx == raid_disks-1)
+ i--; /* Q D D D P */
+ else {
+ /* D D P Q D */
+ if (i < sh->pd_idx)
+ i += raid_disks;
+ i -= (sh->pd_idx + 2);
+ }
+ break;
+ default:
+ printk (KERN_CRIT "raid6: unsupported algorithm %d\n",
conf->algorithm);
+ }
+ break;
}
chunk_number = stripe * data_disks + i;
@@ -778,10 +861,11 @@ static sector_t compute_blocknr(struct stripe_head *sh, int i)
/*
- * Copy data between a page in the stripe cache, and a bio.
- * There are no alignment or size guarantees between the page or the
- * bio except that there is some overlap.
- * All iovecs in the bio must be considered.
+ * Copy data between a page in the stripe cache, and one or more bion
+ * The page could align with the middle of the bio, or there could be
+ * several bion, each with several bio_vecs, which cover part of the page
+ * Multiple bion are linked together on bi_next. There may be extras
+ * at the end of this list. We ignore them.
*/
static void copy_data(int frombio, struct bio *bio,
struct page *page,
@@ -810,7 +894,7 @@ static void copy_data(int frombio, struct bio *bio,
if (len > 0 && page_offset + len > STRIPE_SIZE)
clen = STRIPE_SIZE - page_offset;
else clen = len;
-
+
if (clen > 0) {
char *ba = __bio_kmap_atomic(bio, i, KM_USER0);
if (frombio)
@@ -862,14 +946,14 @@ static void compute_block(struct stripe_head *sh, int dd_idx)
set_bit(R5_UPTODATE, &sh->dev[dd_idx].flags);
}
-static void compute_parity(struct stripe_head *sh, int method)
+static void compute_parity5(struct stripe_head *sh, int method)
{
raid5_conf_t *conf = sh->raid_conf;
int i, pd_idx = sh->pd_idx, disks = sh->disks, count;
void *ptr[MAX_XOR_BLOCKS];
struct bio *chosen;
- PRINTK("compute_parity, stripe %llu, method %d\n",
+ PRINTK("compute_parity5, stripe %llu, method %d\n",
(unsigned long long)sh->sector, method);
count = 1;
@@ -956,9 +1040,195 @@ static void compute_parity(struct stripe_head *sh, int method)
clear_bit(R5_UPTODATE, &sh->dev[pd_idx].flags);
}
+static void compute_parity6(struct stripe_head *sh, int method)
+{
+ raid6_conf_t *conf = sh->raid_conf;
+ int i, pd_idx = sh->pd_idx, qd_idx, d0_idx, disks = conf->raid_disks, count;
+ struct bio *chosen;
+ /**** FIX THIS: This could be very bad if disks is close to 256 ****/
+ void *ptrs[disks];
+
+ qd_idx = raid6_next_disk(pd_idx, disks);
+ d0_idx = raid6_next_disk(qd_idx, disks);
+
+ PRINTK("compute_parity, stripe %llu, method %d\n",
+ (unsigned long long)sh->sector, method);
+
+ switch(method) {
+ case READ_MODIFY_WRITE:
+ BUG(); /* READ_MODIFY_WRITE N/A for RAID-6 */
+ case RECONSTRUCT_WRITE:
+ for (i= disks; i-- ;)
+ if ( i != pd_idx && i != qd_idx && sh->dev[i].towrite ) {
+ chosen = sh->dev[i].towrite;
+ sh->dev[i].towrite = NULL;
+
+ if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
+ wake_up(&conf->wait_for_overlap);
+
+ if (sh->dev[i].written) BUG();
+ sh->dev[i].written = chosen;
+ }
+ break;
+ case CHECK_PARITY:
+ BUG(); /* Not implemented yet */
+ }
+
+ for (i = disks; i--;)
+ if (sh->dev[i].written) {
+ sector_t sector = sh->dev[i].sector;
+ struct bio *wbi = sh->dev[i].written;
+ while (wbi && wbi->bi_sector < sector + STRIPE_SECTORS) {
+ copy_data(1, wbi, sh->dev[i].page, sector);
+ wbi = r5_next_bio(wbi, sector);
+ }
+
+ set_bit(R5_LOCKED, &sh->dev[i].flags);
+ set_bit(R5_UPTODATE, &sh->dev[i].flags);
+ }
+
+// switch(method) {
+// case RECONSTRUCT_WRITE:
+// case CHECK_PARITY:
+// case UPDATE_PARITY:
+ /* Note that unlike RAID-5, the ordering of the disks matters greatly. */
+ /* FIX: Is this ordering of drives even remotely optimal? */
+ count = 0;
+ i = d0_idx;
+ do {
+ ptrs[count++] = page_address(sh->dev[i].page);
+ if (count <= disks-2 && !test_bit(R5_UPTODATE, &sh->dev[i].flags))
+ printk("block %d/%d not uptodate on parity calc\n", i,count);
+ i = raid6_next_disk(i, disks);
+ } while ( i != d0_idx );
+// break;
+// }
+
+ raid6_call.gen_syndrome(disks, STRIPE_SIZE, ptrs);
+
+ switch(method) {
+ case RECONSTRUCT_WRITE:
+ set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags);
+ set_bit(R5_UPTODATE, &sh->dev[qd_idx].flags);
+ set_bit(R5_LOCKED, &sh->dev[pd_idx].flags);
+ set_bit(R5_LOCKED, &sh->dev[qd_idx].flags);
+ break;
+ case UPDATE_PARITY:
+ set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags);
+ set_bit(R5_UPTODATE, &sh->dev[qd_idx].flags);
+ break;
+ }
+}
+
+
+/* Compute one missing block */
+static void compute_block_1(struct stripe_head *sh, int dd_idx, int nozero)
+{
+ raid6_conf_t *conf = sh->raid_conf;
+ int i, count, disks = conf->raid_disks;
+ void *ptr[MAX_XOR_BLOCKS], *p;
+ int pd_idx = sh->pd_idx;
+ int qd_idx = raid6_next_disk(pd_idx, disks);
+
+ PRINTK("compute_block_1, stripe %llu, idx %d\n",
+ (unsigned long long)sh->sector, dd_idx);
+
+ if ( dd_idx == qd_idx ) {
+ /* We're actually computing the Q drive */
+ compute_parity6(sh, UPDATE_PARITY);
+ } else {
+ ptr[0] = page_address(sh->dev[dd_idx].page);
+ if (!nozero) memset(ptr[0], 0, STRIPE_SIZE);
+ count = 1;
+ for (i = disks ; i--; ) {
+ if (i == dd_idx || i == qd_idx)
+ continue;
+ p = page_address(sh->dev[i].page);
+ if (test_bit(R5_UPTODATE, &sh->dev[i].flags))
+ ptr[count++] = p;
+ else
+ printk("compute_block() %d, stripe %llu, %d"
+ " not present\n", dd_idx,
+ (unsigned long long)sh->sector, i);
+
+ check_xor();
+ }
+ if (count != 1)
+ xor_block(count, STRIPE_SIZE, ptr);
+ if (!nozero) set_bit(R5_UPTODATE, &sh->dev[dd_idx].flags);
+ else clear_bit(R5_UPTODATE, &sh->dev[dd_idx].flags);
+ }
+}
+
+/* Compute two missing blocks */
+static void compute_block_2(struct stripe_head *sh, int dd_idx1, int dd_idx2)
+{
+ raid6_conf_t *conf = sh->raid_conf;
+ int i, count, disks = conf->raid_disks;
+ int pd_idx = sh->pd_idx;
+ int qd_idx = raid6_next_disk(pd_idx, disks);
+ int d0_idx = raid6_next_disk(qd_idx, disks);
+ int faila, failb;
+
+ /* faila and failb are disk numbers relative to d0_idx */
+ /* pd_idx become disks-2 and qd_idx become disks-1 */
+ faila = (dd_idx1 < d0_idx) ? dd_idx1+(disks-d0_idx) : dd_idx1-d0_idx;
+ failb = (dd_idx2 < d0_idx) ? dd_idx2+(disks-d0_idx) : dd_idx2-d0_idx;
+
+ BUG_ON(faila == failb);
+ if ( failb < faila ) { int tmp = faila; faila = failb; failb = tmp; }
+
+ PRINTK("compute_block_2, stripe %llu, idx %d,%d (%d,%d)\n",
+ (unsigned long long)sh->sector, dd_idx1, dd_idx2, faila, failb);
+
+ if ( failb == disks-1 ) {
+ /* Q disk is one of the missing disks */
+ if ( faila == disks-2 ) {
+ /* Missing P+Q, just recompute */
+ compute_parity6(sh, UPDATE_PARITY);
+ return;
+ } else {
+ /* We're missing D+Q; recompute D from P */
+ compute_block_1(sh, (dd_idx1 == qd_idx) ? dd_idx2 : dd_idx1, 0);
+ compute_parity6(sh, UPDATE_PARITY); /* Is this necessary? */
+ return;
+ }
+ }
+
+ /* We're missing D+P or D+D; build pointer table */
+ {
+ /**** FIX THIS: This could be very bad if disks is close to 256 ****/
+ void *ptrs[disks];
+
+ count = 0;
+ i = d0_idx;
+ do {
+ ptrs[count++] = page_address(sh->dev[i].page);
+ i = raid6_next_disk(i, disks);
+ if (i != dd_idx1 && i != dd_idx2 &&
+ !test_bit(R5_UPTODATE, &sh->dev[i].flags))
+ printk("compute_2 with missing block %d/%d\n", count, i);
+ } while ( i != d0_idx );
+
+ if ( failb == disks-2 ) {
+ /* We're missing D+P. */
+ raid6_datap_recov(disks, STRIPE_SIZE, faila, ptrs);
+ } else {
+ /* We're missing D+D. */
+ raid6_2data_recov(disks, STRIPE_SIZE, faila, failb, ptrs);
+ }
+
+ /* Both the above update both missing blocks */
+ set_bit(R5_UPTODATE, &sh->dev[dd_idx1].flags);
+ set_bit(R5_UPTODATE, &sh->dev[dd_idx2].flags);
+ }
+}
+
+
+
/*
* Each stripe/dev can have one or more bion attached.
- * toread/towrite point to the first in a chain.
+ * toread/towrite point to the first in a chain.
* The bi_next chain must be in order.
*/
static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, int forwrite)
@@ -1031,6 +1301,13 @@ static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, in
static void end_reshape(raid5_conf_t *conf);
+static int page_is_zero(struct page *p)
+{
+ char *a = page_address(p);
+ return ((*(u32*)a) == 0 &&
+ memcmp(a, a+4, STRIPE_SIZE-4)==0);
+}
+
static int stripe_to_pdidx(sector_t stripe, raid5_conf_t *conf, int disks)
{
int sectors_per_chunk = conf->chunk_size >> 9;
@@ -1062,7 +1339,7 @@ static int stripe_to_pdidx(sector_t stripe, raid5_conf_t *conf, int disks)
*
*/
-static void handle_stripe(struct stripe_head *sh)
+static void handle_stripe5(struct stripe_head *sh)
{
raid5_conf_t *conf = sh->raid_conf;
int disks = sh->disks;
@@ -1394,7 +1671,7 @@ static void handle_stripe(struct stripe_head *sh)
if (locked == 0 && (rcw == 0 ||rmw == 0) &&
!test_bit(STRIPE_BIT_DELAY, &sh->state)) {
PRINTK("Computing parity...\n");
- compute_parity(sh, rcw==0 ? RECONSTRUCT_WRITE : READ_MODIFY_WRITE);
+ compute_parity5(sh, rcw==0 ? RECONSTRUCT_WRITE : READ_MODIFY_WRITE);
/* now every locked buffer is ready to be written */
for (i=disks; i--;)
if (test_bit(R5_LOCKED, &sh->dev[i].flags)) {
@@ -1421,13 +1698,10 @@ static void handle_stripe(struct stripe_head *sh)
!test_bit(STRIPE_INSYNC, &sh->state)) {
set_bit(STRIPE_HANDLE, &sh->state);
if (failed == 0) {
- char *pagea;
BUG_ON(uptodate != disks);
- compute_parity(sh, CHECK_PARITY);
+ compute_parity5(sh, CHECK_PARITY);
uptodate--;
- pagea = page_address(sh->dev[sh->pd_idx].page);
- if ((*(u32*)pagea) == 0 &&
- !memcmp(pagea, pagea+4, STRIPE_SIZE-4)) {
+ if (page_is_zero(sh->dev[sh->pd_idx].page)) {
/* parity is correct (on disc, not in buffer any more) */
set_bit(STRIPE_INSYNC, &sh->state);
} else {
@@ -1487,7 +1761,7 @@ static void handle_stripe(struct stripe_head *sh)
/* Need to write out all blocks after computing parity */
sh->disks = conf->raid_disks;
sh->pd_idx = stripe_to_pdidx(sh->sector, conf, conf->raid_disks);
- compute_parity(sh, RECONSTRUCT_WRITE);
+ compute_parity5(sh, RECONSTRUCT_WRITE);
for (i= conf->raid_disks; i--;) {
set_bit(R5_LOCKED, &sh->dev[i].flags);
locked++;
@@ -1615,6 +1889,569 @@ static void handle_stripe(struct stripe_head *sh)
}
}
+static void handle_stripe6(struct stripe_head *sh, struct page *tmp_page)
+{
+ raid6_conf_t *conf = sh->raid_conf;
+ int disks = conf->raid_disks;
+ struct bio *return_bi= NULL;
+ struct bio *bi;
+ int i;
+ int syncing;
+ int locked=0, uptodate=0, to_read=0, to_write=0, failed=0, written=0;
+ int non_overwrite = 0;
+ int failed_num[2] = {0, 0};
+ struct r5dev *dev, *pdev, *qdev;
+ int pd_idx = sh->pd_idx;
+ int qd_idx = raid6_next_disk(pd_idx, disks);
+ int p_failed, q_failed;
+
+ PRINTK("handling stripe %llu, state=%#lx cnt=%d, pd_idx=%d, qd_idx=%d\n",
+ (unsigned long long)sh->sector, sh->state, atomic_read(&sh->count),
+ pd_idx, qd_idx);
+
+ spin_lock(&sh->lock);
+ clear_bit(STRIPE_HANDLE, &sh->state);
+ clear_bit(STRIPE_DELAYED, &sh->state);
+
+ syncing = test_bit(STRIPE_SYNCING, &sh->state);
+ /* Now to look around and see what can be done */
+
+ rcu_read_lock();
+ for (i=disks; i--; ) {
+ mdk_rdev_t *rdev;
+ dev = &sh->dev[i];
+ clear_bit(R5_Insync, &dev->flags);
+
+ PRINTK("check %d: state 0x%lx read %p write %p written %p\n",
+ i, dev->flags, dev->toread, dev->towrite, dev->written);
+ /* maybe we can reply to a read */
+ if (test_bit(R5_UPTODATE, &dev->flags) && dev->toread) {
+ struct bio *rbi, *rbi2;
+ PRINTK("Return read for disc %d\n", i);
+ spin_lock_irq(&conf->device_lock);
+ rbi = dev->toread;
+ dev->toread = NULL;
+ if (test_and_clear_bit(R5_Overlap, &dev->flags))
+ wake_up(&conf->wait_for_overlap);
+ spin_unlock_irq(&conf->device_lock);
+ while (rbi && rbi->bi_sector < dev->sector + STRIPE_SECTORS) {
+ copy_data(0, rbi, dev->page, dev->sector);
+ rbi2 = r5_next_bio(rbi, dev->sector);
+ spin_lock_irq(&conf->device_lock);
+ if (--rbi->bi_phys_segments == 0) {
+ rbi->bi_next = return_bi;
+ return_bi = rbi;
+ }
+ spin_unlock_irq(&conf->device_lock);
+ rbi = rbi2;
+ }
+ }
+
+ /* now count some things */
+ if (test_bit(R5_LOCKED, &dev->flags)) locked++;
+ if (test_bit(R5_UPTODATE, &dev->flags)) uptodate++;
+
+
+ if (dev->toread) to_read++;
+ if (dev->towrite) {
+ to_write++;
+ if (!test_bit(R5_OVERWRITE, &dev->flags))
+ non_overwrite++;
+ }
+ if (dev->written) written++;
+ rdev = rcu_dereference(conf->disks[i].rdev);
+ if (!rdev || !test_bit(In_sync, &rdev->flags)) {
+ /* The ReadError flag will just be confusing now */
+ clear_bit(R5_ReadError, &dev->flags);
+ clear_bit(R5_ReWrite, &dev->flags);
+ }
+ if (!rdev || !test_bit(In_sync, &rdev->flags)
+ || test_bit(R5_ReadError, &dev->flags)) {
+ if ( failed < 2 )
+ failed_num[failed] = i;
+ failed++;
+ } else
+ set_bit(R5_Insync, &dev->flags);
+ }
+ rcu_read_unlock();
+ PRINTK("locked=%d uptodate=%d to_read=%d"
+ " to_write=%d failed=%d failed_num=%d,%d\n",
+ locked, uptodate, to_read, to_write, failed,
+ failed_num[0], failed_num[1]);
+ /* check if the array has lost >2 devices and, if so, some requests might
+ * need to be failed
+ */
+ if (failed > 2 && to_read+to_write+written) {
+ for (i=disks; i--; ) {
+ int bitmap_end = 0;
+
+ if (test_bit(R5_ReadError, &sh->dev[i].flags)) {
+ mdk_rdev_t *rdev;
+ rcu_read_lock();
+ rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && test_bit(In_sync, &rdev->flags))
+ /* multiple read failures in one stripe */
+ md_error(conf->mddev, rdev);
+ rcu_read_unlock();
+ }
+
+ spin_lock_irq(&conf->device_lock);
+ /* fail all writes first */
+ bi = sh->dev[i].towrite;
+ sh->dev[i].towrite = NULL;
+ if (bi) { to_write--; bitmap_end = 1; }
+
+ if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
+ wake_up(&conf->wait_for_overlap);
+
+ while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS){
+ struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
+ clear_bit(BIO_UPTODATE, &bi->bi_flags);
+ if (--bi->bi_phys_segments == 0) {
+ md_write_end(conf->mddev);
+ bi->bi_next = return_bi;
+ return_bi = bi;
+ }
+ bi = nextbi;
+ }
+ /* and fail all 'written' */
+ bi = sh->dev[i].written;
+ sh->dev[i].written = NULL;
+ if (bi) bitmap_end = 1;
+ while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS) {
+ struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
+ clear_bit(BIO_UPTODATE, &bi->bi_flags);
+ if (--bi->bi_phys_segments == 0) {
+ md_write_end(conf->mddev);
+ bi->bi_next = return_bi;
+ return_bi = bi;
+ }
+ bi = bi2;
+ }
+
+ /* fail any reads if this device is non-operational */
+ if (!test_bit(R5_Insync, &sh->dev[i].flags) ||
+ test_bit(R5_ReadError, &sh->dev[i].flags)) {
+ bi = sh->dev[i].toread;
+ sh->dev[i].toread = NULL;
+ if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
+ wake_up(&conf->wait_for_overlap);
+ if (bi) to_read--;
+ while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS){
+ struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
+ clear_bit(BIO_UPTODATE, &bi->bi_flags);
+ if (--bi->bi_phys_segments == 0) {
+ bi->bi_next = return_bi;
+ return_bi = bi;
+ }
+ bi = nextbi;
+ }
+ }
+ spin_unlock_irq(&conf->device_lock);
+ if (bitmap_end)
+ bitmap_endwrite(conf->mddev->bitmap, sh->sector,
+ STRIPE_SECTORS, 0, 0);
+ }
+ }
+ if (failed > 2 && syncing) {
+ md_done_sync(conf->mddev, STRIPE_SECTORS,0);
+ clear_bit(STRIPE_SYNCING, &sh->state);
+ syncing = 0;
+ }
+
+ /*
+ * might be able to return some write requests if the parity blocks
+ * are safe, or on a failed drive
+ */
+ pdev = &sh->dev[pd_idx];
+ p_failed = (failed >= 1 && failed_num[0] == pd_idx)
+ || (failed >= 2 && failed_num[1] == pd_idx);
+ qdev = &sh->dev[qd_idx];
+ q_failed = (failed >= 1 && failed_num[0] == qd_idx)
+ || (failed >= 2 && failed_num[1] == qd_idx);
+
+ if ( written &&
+ ( p_failed || ((test_bit(R5_Insync, &pdev->flags)
+ && !test_bit(R5_LOCKED, &pdev->flags)
+ && test_bit(R5_UPTODATE, &pdev->flags))) ) &&
+ ( q_failed || ((test_bit(R5_Insync, &qdev->flags)
+ && !test_bit(R5_LOCKED, &qdev->flags)
+ && test_bit(R5_UPTODATE, &qdev->flags))) ) ) {
+ /* any written block on an uptodate or failed drive can be
+ * returned. Note that if we 'wrote' to a failed drive,
+ * it will be UPTODATE, but never LOCKED, so we don't need
+ * to test 'failed' directly.
+ */
+ for (i=disks; i--; )
+ if (sh->dev[i].written) {
+ dev = &sh->dev[i];
+ if (!test_bit(R5_LOCKED, &dev->flags) &&
+ test_bit(R5_UPTODATE, &dev->flags) ) {
+ /* We can return any write requests */
+ int bitmap_end = 0;
+ struct bio *wbi, *wbi2;
+ PRINTK("Return write for stripe %llu disc %d\n",
+ (unsigned long long)sh->sector, i);
+ spin_lock_irq(&conf->device_lock);
+ wbi = dev->written;
+ dev->written = NULL;
+ while (wbi && wbi->bi_sector < dev->sector + STRIPE_SECTORS) {
+ wbi2 = r5_next_bio(wbi, dev->sector);
+ if (--wbi->bi_phys_segments == 0) {
+ md_write_end(conf->mddev);
+ wbi->bi_next = return_bi;
+ return_bi = wbi;
+ }
+ wbi = wbi2;
+ }
+ if (dev->towrite == NULL)
+ bitmap_end = 1;
+ spin_unlock_irq(&conf->device_lock);
+ if (bitmap_end)
+ bitmap_endwrite(conf->mddev->bitmap, sh->sector,
+ STRIPE_SECTORS,
+ !test_bit(STRIPE_DEGRADED, &sh->state), 0);
+ }
+ }
+ }
+
+ /* Now we might consider reading some blocks, either to check/generate
+ * parity, or to satisfy requests
+ * or to load a block that is being partially written.
+ */
+ if (to_read || non_overwrite || (to_write && failed) || (syncing && (uptodate < disks))) {
+ for (i=disks; i--;) {
+ dev = &sh->dev[i];
+ if (!test_bit(R5_LOCKED, &dev->flags) && !test_bit(R5_UPTODATE, &dev->flags) &&
+ (dev->toread ||
+ (dev->towrite && !test_bit(R5_OVERWRITE, &dev->flags)) ||
+ syncing ||
+ (failed >= 1 && (sh->dev[failed_num[0]].toread || to_write)) ||
+ (failed >= 2 && (sh->dev[failed_num[1]].toread || to_write))
+ )
+ ) {
+ /* we would like to get this block, possibly
+ * by computing it, but we might not be able to
+ */
+ if (uptodate == disks-1) {
+ PRINTK("Computing stripe %llu block %d\n",
+ (unsigned long long)sh->sector, i);
+ compute_block_1(sh, i, 0);
+ uptodate++;
+ } else if ( uptodate == disks-2 && failed >= 2 ) {
+ /* Computing 2-failure is *very* expensive; only do it if failed >= 2 */
+ int other;
+ for (other=disks; other--;) {
+ if ( other == i )
+ continue;
+ if ( !test_bit(R5_UPTODATE, &sh->dev[other].flags) )
+ break;
+ }
+ BUG_ON(other < 0);
+ PRINTK("Computing stripe %llu blocks %d,%d\n",
+ (unsigned long long)sh->sector, i, other);
+ compute_block_2(sh, i, other);
+ uptodate += 2;
+ } else if (test_bit(R5_Insync, &dev->flags)) {
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantread, &dev->flags);
+#if 0
+ /* if I am just reading this block and we don't have
+ a failed drive, or any pending writes then sidestep the cache */
+ if (sh->bh_read[i] && !sh->bh_read[i]->b_reqnext &&
+ ! syncing && !failed && !to_write) {
+ sh->bh_cache[i]->b_page = sh->bh_read[i]->b_page;
+ sh->bh_cache[i]->b_data = sh->bh_read[i]->b_data;
+ }
+#endif
+ locked++;
+ PRINTK("Reading block %d (sync=%d)\n",
+ i, syncing);
+ }
+ }
+ }
+ set_bit(STRIPE_HANDLE, &sh->state);
+ }
+
+ /* now to consider writing and what else, if anything should be read */
+ if (to_write) {
+ int rcw=0, must_compute=0;
+ for (i=disks ; i--;) {
+ dev = &sh->dev[i];
+ /* Would I have to read this buffer for reconstruct_write */
+ if (!test_bit(R5_OVERWRITE, &dev->flags)
+ && i != pd_idx && i != qd_idx
+ && (!test_bit(R5_LOCKED, &dev->flags)
+#if 0
+ || sh->bh_page[i] != bh->b_page
+#endif
+ ) &&
+ !test_bit(R5_UPTODATE, &dev->flags)) {
+ if (test_bit(R5_Insync, &dev->flags)) rcw++;
+ else {
+ PRINTK("raid6: must_compute: disk %d flags=%#lx\n", i, dev->flags);
+ must_compute++;
+ }
+ }
+ }
+ PRINTK("for sector %llu, rcw=%d, must_compute=%d\n",
+ (unsigned long long)sh->sector, rcw, must_compute);
+ set_bit(STRIPE_HANDLE, &sh->state);
+
+ if (rcw > 0)
+ /* want reconstruct write, but need to get some data */
+ for (i=disks; i--;) {
+ dev = &sh->dev[i];
+ if (!test_bit(R5_OVERWRITE, &dev->flags)
+ && !(failed == 0 && (i == pd_idx || i == qd_idx))
+ && !test_bit(R5_LOCKED, &dev->flags) && !test_bit(R5_UPTODATE, &dev->flags) &&
+ test_bit(R5_Insync, &dev->flags)) {
+ if (test_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
+ {
+ PRINTK("Read_old stripe %llu block %d for Reconstruct\n",
+ (unsigned long long)sh->sector, i);
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantread, &dev->flags);
+ locked++;
+ } else {
+ PRINTK("Request delayed stripe %llu block %d for Reconstruct\n",
+ (unsigned long long)sh->sector, i);
+ set_bit(STRIPE_DELAYED, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ }
+ }
+ }
+ /* now if nothing is locked, and if we have enough data, we can start a write request */
+ if (locked == 0 && rcw == 0 &&
+ !test_bit(STRIPE_BIT_DELAY, &sh->state)) {
+ if ( must_compute > 0 ) {
+ /* We have failed blocks and need to compute them */
+ switch ( failed ) {
+ case 0: BUG();
+ case 1: compute_block_1(sh, failed_num[0], 0); break;
+ case 2: compute_block_2(sh, failed_num[0], failed_num[1]); break;
+ default: BUG(); /* This request should have been failed? */
+ }
+ }
+
+ PRINTK("Computing parity for stripe %llu\n", (unsigned long long)sh->sector);
+ compute_parity6(sh, RECONSTRUCT_WRITE);
+ /* now every locked buffer is ready to be written */
+ for (i=disks; i--;)
+ if (test_bit(R5_LOCKED, &sh->dev[i].flags)) {
+ PRINTK("Writing stripe %llu block %d\n",
+ (unsigned long long)sh->sector, i);
+ locked++;
+ set_bit(R5_Wantwrite, &sh->dev[i].flags);
+ }
+ /* after a RECONSTRUCT_WRITE, the stripe MUST be in-sync */
+ set_bit(STRIPE_INSYNC, &sh->state);
+
+ if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) {
+ atomic_dec(&conf->preread_active_stripes);
+ if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD)
+ md_wakeup_thread(conf->mddev->thread);
+ }
+ }
+ }
+
+ /* maybe we need to check and possibly fix the parity for this stripe
+ * Any reads will already have been scheduled, so we just see if enough data
+ * is available
+ */
+ if (syncing && locked == 0 && !test_bit(STRIPE_INSYNC, &sh->state)) {
+ int update_p = 0, update_q = 0;
+ struct r5dev *dev;
+
+ set_bit(STRIPE_HANDLE, &sh->state);
+
+ BUG_ON(failed>2);
+ BUG_ON(uptodate < disks);
+ /* Want to check and possibly repair P and Q.
+ * However there could be one 'failed' device, in which
+ * case we can only check one of them, possibly using the
+ * other to generate missing data
+ */
+
+ /* If !tmp_page, we cannot do the calculations,
+ * but as we have set STRIPE_HANDLE, we will soon be called
+ * by stripe_handle with a tmp_page - just wait until then.
+ */
+ if (tmp_page) {
+ if (failed == q_failed) {
+ /* The only possible failed device holds 'Q', so it makes
+ * sense to check P (If anything else were failed, we would
+ * have used P to recreate it).
+ */
+ compute_block_1(sh, pd_idx, 1);
+ if (!page_is_zero(sh->dev[pd_idx].page)) {
+ compute_block_1(sh,pd_idx,0);
+ update_p = 1;
+ }
+ }
+ if (!q_failed && failed < 2) {
+ /* q is not failed, and we didn't use it to generate
+ * anything, so it makes sense to check it
+ */
+ memcpy(page_address(tmp_page),
+ page_address(sh->dev[qd_idx].page),
+ STRIPE_SIZE);
+ compute_parity6(sh, UPDATE_PARITY);
+ if (memcmp(page_address(tmp_page),
+ page_address(sh->dev[qd_idx].page),
+ STRIPE_SIZE)!= 0) {
+ clear_bit(STRIPE_INSYNC, &sh->state);
+ update_q = 1;
+ }
+ }
+ if (update_p || update_q) {
+ conf->mddev->resync_mismatches += STRIPE_SECTORS;
+ if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
+ /* don't try to repair!! */
+ update_p = update_q = 0;
+ }
+
+ /* now write out any block on a failed drive,
+ * or P or Q if they need it
+ */
+
+ if (failed == 2) {
+ dev = &sh->dev[failed_num[1]];
+ locked++;
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantwrite, &dev->flags);
+ }
+ if (failed >= 1) {
+ dev = &sh->dev[failed_num[0]];
+ locked++;
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantwrite, &dev->flags);
+ }
+
+ if (update_p) {
+ dev = &sh->dev[pd_idx];
+ locked ++;
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantwrite, &dev->flags);
+ }
+ if (update_q) {
+ dev = &sh->dev[qd_idx];
+ locked++;
+ set_bit(R5_LOCKED, &dev->flags);
+ set_bit(R5_Wantwrite, &dev->flags);
+ }
+ clear_bit(STRIPE_DEGRADED, &sh->state);
+
+ set_bit(STRIPE_INSYNC, &sh->state);
+ }
+ }
+
+ if (syncing && locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) {
+ md_done_sync(conf->mddev, STRIPE_SECTORS,1);
+ clear_bit(STRIPE_SYNCING, &sh->state);
+ }
+
+ /* If the failed drives are just a ReadError, then we might need
+ * to progress the repair/check process
+ */
+ if (failed <= 2 && ! conf->mddev->ro)
+ for (i=0; i<failed;i++) {
+ dev = &sh->dev[failed_num[i]];
+ if (test_bit(R5_ReadError, &dev->flags)
+ && !test_bit(R5_LOCKED, &dev->flags)
+ && test_bit(R5_UPTODATE, &dev->flags)
+ ) {
+ if (!test_bit(R5_ReWrite, &dev->flags)) {
+ set_bit(R5_Wantwrite, &dev->flags);
+ set_bit(R5_ReWrite, &dev->flags);
+ set_bit(R5_LOCKED, &dev->flags);
+ } else {
+ /* let's read it back */
+ set_bit(R5_Wantread, &dev->flags);
+ set_bit(R5_LOCKED, &dev->flags);
+ }
+ }
+ }
+ spin_unlock(&sh->lock);
+
+ while ((bi=return_bi)) {
+ int bytes = bi->bi_size;
+
+ return_bi = bi->bi_next;
+ bi->bi_next = NULL;
+ bi->bi_size = 0;
+ bi->bi_end_io(bi, bytes, 0);
+ }
+ for (i=disks; i-- ;) {
+ int rw;
+ struct bio *bi;
+ mdk_rdev_t *rdev;
+ if (test_and_clear_bit(R5_Wantwrite, &sh->dev[i].flags))
+ rw = 1;
+ else if (test_and_clear_bit(R5_Wantread, &sh->dev[i].flags))
+ rw = 0;
+ else
+ continue;
+
+ bi = &sh->dev[i].req;
+
+ bi->bi_rw = rw;
+ if (rw)
+ bi->bi_end_io = raid5_end_write_request;
+ else
+ bi->bi_end_io = raid5_end_read_request;
+
+ rcu_read_lock();
+ rdev = rcu_dereference(conf->disks[i].rdev);
+ if (rdev && test_bit(Faulty, &rdev->flags))
+ rdev = NULL;
+ if (rdev)
+ atomic_inc(&rdev->nr_pending);
+ rcu_read_unlock();
+
+ if (rdev) {
+ if (syncing)
+ md_sync_acct(rdev->bdev, STRIPE_SECTORS);
+
+ bi->bi_bdev = rdev->bdev;
+ PRINTK("for %llu schedule op %ld on disc %d\n",
+ (unsigned long long)sh->sector, bi->bi_rw, i);
+ atomic_inc(&sh->count);
+ bi->bi_sector = sh->sector + rdev->data_offset;
+ bi->bi_flags = 1 << BIO_UPTODATE;
+ bi->bi_vcnt = 1;
+ bi->bi_max_vecs = 1;
+ bi->bi_idx = 0;
+ bi->bi_io_vec = &sh->dev[i].vec;
+ bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
+ bi->bi_io_vec[0].bv_offset = 0;
+ bi->bi_size = STRIPE_SIZE;
+ bi->bi_next = NULL;
+ if (rw == WRITE &&
+ test_bit(R5_ReWrite, &sh->dev[i].flags))
+ atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
+ generic_make_request(bi);
+ } else {
+ if (rw == 1)
+ set_bit(STRIPE_DEGRADED, &sh->state);
+ PRINTK("skip op %ld on disc %d for sector %llu\n",
+ bi->bi_rw, i, (unsigned long long)sh->sector);
+ clear_bit(R5_LOCKED, &sh->dev[i].flags);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ }
+ }
+}
+
+static void handle_stripe(struct stripe_head *sh, struct page *tmp_page)
+{
+ if (sh->raid_conf->level == 6)
+ handle_stripe6(sh, tmp_page);
+ else
+ handle_stripe5(sh);
+}
+
+
+
static void raid5_activate_delayed(raid5_conf_t *conf)
{
if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD) {
@@ -1753,7 +2590,7 @@ static int make_request(request_queue_t *q, struct bio * bi)
for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
DEFINE_WAIT(w);
- int disks;
+ int disks, data_disks;
retry:
prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
@@ -1781,7 +2618,9 @@ static int make_request(request_queue_t *q, struct bio * bi)
}
spin_unlock_irq(&conf->device_lock);
}
- new_sector = raid5_compute_sector(logical_sector, disks, disks - 1,
+ data_disks = disks - conf->max_degraded;
+
+ new_sector = raid5_compute_sector(logical_sector, disks, data_disks,
&dd_idx, &pd_idx, conf);
PRINTK("raid5: make_request, sector %llu logical %llu\n",
(unsigned long long)new_sector,
@@ -1833,7 +2672,7 @@ static int make_request(request_queue_t *q, struct bio * bi)
}
finish_wait(&conf->wait_for_overlap, &w);
raid5_plug_device(conf);
- handle_stripe(sh);
+ handle_stripe(sh, NULL);
release_stripe(sh);
} else {
/* cannot get stripe for read-ahead, just give-up */
@@ -1849,7 +2688,7 @@ static int make_request(request_queue_t *q, struct bio * bi)
if (remaining == 0) {
int bytes = bi->bi_size;
- if ( bio_data_dir(bi) == WRITE )
+ if ( rw == WRITE )
md_write_end(mddev);
bi->bi_size = 0;
bi->bi_end_io(bi, bytes, 0);
@@ -1857,17 +2696,142 @@ static int make_request(request_queue_t *q, struct bio * bi)
return 0;
}
-/* FIXME go_faster isn't used */
-static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster)
+static sector_t reshape_request(mddev_t *mddev, sector_t sector_nr, int *skipped)
{
+ /* reshaping is quite different to recovery/resync so it is
+ * handled quite separately ... here.
+ *
+ * On each call to sync_request, we gather one chunk worth of
+ * destination stripes and flag them as expanding.
+ * Then we find all the source stripes and request reads.
+ * As the reads complete, handle_stripe will copy the data
+ * into the destination stripe and release that stripe.
+ */
raid5_conf_t *conf = (raid5_conf_t *) mddev->private;
struct stripe_head *sh;
int pd_idx;
sector_t first_sector, last_sector;
+ int raid_disks;
+ int data_disks;
+ int i;
+ int dd_idx;
+ sector_t writepos, safepos, gap;
+
+ if (sector_nr == 0 &&
+ conf->expand_progress != 0) {
+ /* restarting in the middle, skip the initial sectors */
+ sector_nr = conf->expand_progress;
+ sector_div(sector_nr, conf->raid_disks-1);
+ *skipped = 1;
+ return sector_nr;
+ }
+
+ /* we update the metadata when there is more than 3Meg
+ * in the block range (that is rather arbitrary, should
+ * probably be time based) or when the data about to be
+ * copied would over-write the source of the data at
+ * the front of the range.
+ * i.e. one new_stripe forward from expand_progress new_maps
+ * to after where expand_lo old_maps to
+ */
+ writepos = conf->expand_progress +
+ conf->chunk_size/512*(conf->raid_disks-1);
+ sector_div(writepos, conf->raid_disks-1);
+ safepos = conf->expand_lo;
+ sector_div(safepos, conf->previous_raid_disks-1);
+ gap = conf->expand_progress - conf->expand_lo;
+
+ if (writepos >= safepos ||
+ gap > (conf->raid_disks-1)*3000*2 /*3Meg*/) {
+ /* Cannot proceed until we've updated the superblock... */
+ wait_event(conf->wait_for_overlap,
+ atomic_read(&conf->reshape_stripes)==0);
+ mddev->reshape_position = conf->expand_progress;
+ mddev->sb_dirty = 1;
+ md_wakeup_thread(mddev->thread);
+ wait_event(mddev->sb_wait, mddev->sb_dirty == 0 ||
+ kthread_should_stop());
+ spin_lock_irq(&conf->device_lock);
+ conf->expand_lo = mddev->reshape_position;
+ spin_unlock_irq(&conf->device_lock);
+ wake_up(&conf->wait_for_overlap);
+ }
+
+ for (i=0; i < conf->chunk_size/512; i+= STRIPE_SECTORS) {
+ int j;
+ int skipped = 0;
+ pd_idx = stripe_to_pdidx(sector_nr+i, conf, conf->raid_disks);
+ sh = get_active_stripe(conf, sector_nr+i,
+ conf->raid_disks, pd_idx, 0);
+ set_bit(STRIPE_EXPANDING, &sh->state);
+ atomic_inc(&conf->reshape_stripes);
+ /* If any of this stripe is beyond the end of the old
+ * array, then we need to zero those blocks
+ */
+ for (j=sh->disks; j--;) {
+ sector_t s;
+ if (j == sh->pd_idx)
+ continue;
+ s = compute_blocknr(sh, j);
+ if (s < (mddev->array_size<<1)) {
+ skipped = 1;
+ continue;
+ }
+ memset(page_address(sh->dev[j].page), 0, STRIPE_SIZE);
+ set_bit(R5_Expanded, &sh->dev[j].flags);
+ set_bit(R5_UPTODATE, &sh->dev[j].flags);
+ }
+ if (!skipped) {
+ set_bit(STRIPE_EXPAND_READY, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ }
+ release_stripe(sh);
+ }
+ spin_lock_irq(&conf->device_lock);
+ conf->expand_progress = (sector_nr + i)*(conf->raid_disks-1);
+ spin_unlock_irq(&conf->device_lock);
+ /* Ok, those stripe are ready. We can start scheduling
+ * reads on the source stripes.
+ * The source stripes are determined by mapping the first and last
+ * block on the destination stripes.
+ */
+ raid_disks = conf->previous_raid_disks;
+ data_disks = raid_disks - 1;
+ first_sector =
+ raid5_compute_sector(sector_nr*(conf->raid_disks-1),
+ raid_disks, data_disks,
+ &dd_idx, &pd_idx, conf);
+ last_sector =
+ raid5_compute_sector((sector_nr+conf->chunk_size/512)
+ *(conf->raid_disks-1) -1,
+ raid_disks, data_disks,
+ &dd_idx, &pd_idx, conf);
+ if (last_sector >= (mddev->size<<1))
+ last_sector = (mddev->size<<1)-1;
+ while (first_sector <= last_sector) {
+ pd_idx = stripe_to_pdidx(first_sector, conf, conf->previous_raid_disks);
+ sh = get_active_stripe(conf, first_sector,
+ conf->previous_raid_disks, pd_idx, 0);
+ set_bit(STRIPE_EXPAND_SOURCE, &sh->state);
+ set_bit(STRIPE_HANDLE, &sh->state);
+ release_stripe(sh);
+ first_sector += STRIPE_SECTORS;
+ }
+ return conf->chunk_size>>9;
+}
+
+/* FIXME go_faster isn't used */
+static inline sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster)
+{
+ raid5_conf_t *conf = (raid5_conf_t *) mddev->private;
+ struct stripe_head *sh;
+ int pd_idx;
int raid_disks = conf->raid_disks;
- int data_disks = raid_disks-1;
+ int data_disks = raid_disks - conf->max_degraded;
sector_t max_sector = mddev->size << 1;
int sync_blocks;
+ int still_degraded = 0;
+ int i;
if (sector_nr >= max_sector) {
/* just being told to finish up .. nothing much to do */
@@ -1880,134 +2844,22 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
if (mddev->curr_resync < max_sector) /* aborted */
bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
&sync_blocks, 1);
- else /* compelted sync */
+ else /* completed sync */
conf->fullsync = 0;
bitmap_close_sync(mddev->bitmap);
return 0;
}
- if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery)) {
- /* reshaping is quite different to recovery/resync so it is
- * handled quite separately ... here.
- *
- * On each call to sync_request, we gather one chunk worth of
- * destination stripes and flag them as expanding.
- * Then we find all the source stripes and request reads.
- * As the reads complete, handle_stripe will copy the data
- * into the destination stripe and release that stripe.
- */
- int i;
- int dd_idx;
- sector_t writepos, safepos, gap;
-
- if (sector_nr == 0 &&
- conf->expand_progress != 0) {
- /* restarting in the middle, skip the initial sectors */
- sector_nr = conf->expand_progress;
- sector_div(sector_nr, conf->raid_disks-1);
- *skipped = 1;
- return sector_nr;
- }
-
- /* we update the metadata when there is more than 3Meg
- * in the block range (that is rather arbitrary, should
- * probably be time based) or when the data about to be
- * copied would over-write the source of the data at
- * the front of the range.
- * i.e. one new_stripe forward from expand_progress new_maps
- * to after where expand_lo old_maps to
- */
- writepos = conf->expand_progress +
- conf->chunk_size/512*(conf->raid_disks-1);
- sector_div(writepos, conf->raid_disks-1);
- safepos = conf->expand_lo;
- sector_div(safepos, conf->previous_raid_disks-1);
- gap = conf->expand_progress - conf->expand_lo;
-
- if (writepos >= safepos ||
- gap > (conf->raid_disks-1)*3000*2 /*3Meg*/) {
- /* Cannot proceed until we've updated the superblock... */
- wait_event(conf->wait_for_overlap,
- atomic_read(&conf->reshape_stripes)==0);
- mddev->reshape_position = conf->expand_progress;
- mddev->sb_dirty = 1;
- md_wakeup_thread(mddev->thread);
- wait_event(mddev->sb_wait, mddev->sb_dirty == 0 ||
- kthread_should_stop());
- spin_lock_irq(&conf->device_lock);
- conf->expand_lo = mddev->reshape_position;
- spin_unlock_irq(&conf->device_lock);
- wake_up(&conf->wait_for_overlap);
- }
-
- for (i=0; i < conf->chunk_size/512; i+= STRIPE_SECTORS) {
- int j;
- int skipped = 0;
- pd_idx = stripe_to_pdidx(sector_nr+i, conf, conf->raid_disks);
- sh = get_active_stripe(conf, sector_nr+i,
- conf->raid_disks, pd_idx, 0);
- set_bit(STRIPE_EXPANDING, &sh->state);
- atomic_inc(&conf->reshape_stripes);
- /* If any of this stripe is beyond the end of the old
- * array, then we need to zero those blocks
- */
- for (j=sh->disks; j--;) {
- sector_t s;
- if (j == sh->pd_idx)
- continue;
- s = compute_blocknr(sh, j);
- if (s < (mddev->array_size<<1)) {
- skipped = 1;
- continue;
- }
- memset(page_address(sh->dev[j].page), 0, STRIPE_SIZE);
- set_bit(R5_Expanded, &sh->dev[j].flags);
- set_bit(R5_UPTODATE, &sh->dev[j].flags);
- }
- if (!skipped) {
- set_bit(STRIPE_EXPAND_READY, &sh->state);
- set_bit(STRIPE_HANDLE, &sh->state);
- }
- release_stripe(sh);
- }
- spin_lock_irq(&conf->device_lock);
- conf->expand_progress = (sector_nr + i)*(conf->raid_disks-1);
- spin_unlock_irq(&conf->device_lock);
- /* Ok, those stripe are ready. We can start scheduling
- * reads on the source stripes.
- * The source stripes are determined by mapping the first and last
- * block on the destination stripes.
- */
- raid_disks = conf->previous_raid_disks;
- data_disks = raid_disks - 1;
- first_sector =
- raid5_compute_sector(sector_nr*(conf->raid_disks-1),
- raid_disks, data_disks,
- &dd_idx, &pd_idx, conf);
- last_sector =
- raid5_compute_sector((sector_nr+conf->chunk_size/512)
- *(conf->raid_disks-1) -1,
- raid_disks, data_disks,
- &dd_idx, &pd_idx, conf);
- if (last_sector >= (mddev->size<<1))
- last_sector = (mddev->size<<1)-1;
- while (first_sector <= last_sector) {
- pd_idx = stripe_to_pdidx(first_sector, conf, conf->previous_raid_disks);
- sh = get_active_stripe(conf, first_sector,
- conf->previous_raid_disks, pd_idx, 0);
- set_bit(STRIPE_EXPAND_SOURCE, &sh->state);
- set_bit(STRIPE_HANDLE, &sh->state);
- release_stripe(sh);
- first_sector += STRIPE_SECTORS;
- }
- return conf->chunk_size>>9;
- }
- /* if there is 1 or more failed drives and we are trying
+ if (test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
+ return reshape_request(mddev, sector_nr, skipped);
+
+ /* if there is too many failed drives and we are trying
* to resync, then assert that we are finished, because there is
* nothing we can do.
*/
- if (mddev->degraded >= 1 && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
+ if (mddev->degraded >= conf->max_degraded &&
+ test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
sector_t rv = (mddev->size << 1) - sector_nr;
*skipped = 1;
return rv;
@@ -2026,17 +2878,26 @@ static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, i
if (sh == NULL) {
sh = get_active_stripe(conf, sector_nr, raid_disks, pd_idx, 0);
/* make sure we don't swamp the stripe cache if someone else
- * is trying to get access
+ * is trying to get access
*/
schedule_timeout_uninterruptible(1);
}
- bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 0);
- spin_lock(&sh->lock);
+ /* Need to check if array will still be degraded after recovery/resync
+ * We don't need to check the 'failed' flag as when that gets set,
+ * recovery aborts.
+ */
+ for (i=0; i<mddev->raid_disks; i++)
+ if (conf->disks[i].rdev == NULL)
+ still_degraded = 1;
+
+ bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded);
+
+ spin_lock(&sh->lock);
set_bit(STRIPE_SYNCING, &sh->state);
clear_bit(STRIPE_INSYNC, &sh->state);
spin_unlock(&sh->lock);
- handle_stripe(sh);
+ handle_stripe(sh, NULL);
release_stripe(sh);
return STRIPE_SECTORS;
@@ -2091,7 +2952,7 @@ static void raid5d (mddev_t *mddev)
spin_unlock_irq(&conf->device_lock);
handled++;
- handle_stripe(sh);
+ handle_stripe(sh, conf->spare_page);
release_stripe(sh);
spin_lock_irq(&conf->device_lock);
@@ -2181,8 +3042,8 @@ static int run(mddev_t *mddev)
struct disk_info *disk;
struct list_head *tmp;
- if (mddev->level != 5 && mddev->level != 4) {
- printk(KERN_ERR "raid5: %s: raid level not set to 4/5 (%d)\n",
+ if (mddev->level != 5 && mddev->level != 4 && mddev->level != 6) {
+ printk(KERN_ERR "raid5: %s: raid level not set to 4/5/6 (%d)\n",
mdname(mddev), mddev->level);
return -EIO;
}
@@ -2251,6 +3112,11 @@ static int run(mddev_t *mddev)
if ((conf->stripe_hashtbl = kzalloc(PAGE_SIZE, GFP_KERNEL)) == NULL)
goto abort;
+ if (mddev->level == 6) {
+ conf->spare_page = alloc_page(GFP_KERNEL);
+ if (!conf->spare_page)
+ goto abort;
+ }
spin_lock_init(&conf->device_lock);
init_waitqueue_head(&conf->wait_for_stripe);
init_waitqueue_head(&conf->wait_for_overlap);
@@ -2282,12 +3148,16 @@ static int run(mddev_t *mddev)
}
/*
- * 0 for a fully functional array, 1 for a degraded array.
+ * 0 for a fully functional array, 1 or 2 for a degraded array.
*/
mddev->degraded = conf->failed_disks = conf->raid_disks - conf->working_disks;
conf->mddev = mddev;
conf->chunk_size = mddev->chunk_size;
conf->level = mddev->level;
+ if (conf->level == 6)
+ conf->max_degraded = 2;
+ else
+ conf->max_degraded = 1;
conf->algorithm = mddev->layout;
conf->max_nr_stripes = NR_STRIPES;
conf->expand_progress = mddev->reshape_position;
@@ -2296,6 +3166,11 @@ static int run(mddev_t *mddev)
mddev->size &= ~(mddev->chunk_size/1024 -1);
mddev->resync_max_sectors = mddev->size << 1;
+ if (conf->level == 6 && conf->raid_disks < 4) {
+ printk(KERN_ERR "raid6: not enough configured devices for %s (%d, minimum 4)\n",
+ mdname(mddev), conf->raid_disks);
+ goto abort;
+ }
if (!conf->chunk_size || conf->chunk_size % 4) {
printk(KERN_ERR "raid5: invalid chunk size %d for %s\n",
conf->chunk_size, mdname(mddev));
@@ -2307,14 +3182,14 @@ static int run(mddev_t *mddev)
conf->algorithm, mdname(mddev));
goto abort;
}
- if (mddev->degraded > 1) {
+ if (mddev->degraded > conf->max_degraded) {
printk(KERN_ERR "raid5: not enough operational devices for %s"
" (%d/%d failed)\n",
mdname(mddev), conf->failed_disks, conf->raid_disks);
goto abort;
}
- if (mddev->degraded == 1 &&
+ if (mddev->degraded > 0 &&
mddev->recovery_cp != MaxSector) {
if (mddev->ok_start_degraded)
printk(KERN_WARNING
@@ -2379,11 +3254,12 @@ static int run(mddev_t *mddev)
}
/* read-ahead size must cover two whole stripes, which is
- * 2 * (n-1) * chunksize where 'n' is the number of raid devices
+ * 2 * (datadisks) * chunksize where 'n' is the number of raid devices
*/
{
- int stripe = (mddev->raid_disks-1) * mddev->chunk_size
- / PAGE_SIZE;
+ int data_disks = conf->previous_raid_disks - conf->max_degraded;
+ int stripe = data_disks *
+ (mddev->chunk_size / PAGE_SIZE);
if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
}
@@ -2393,12 +3269,14 @@ static int run(mddev_t *mddev)
mddev->queue->unplug_fn = raid5_unplug_device;
mddev->queue->issue_flush_fn = raid5_issue_flush;
- mddev->array_size = mddev->size * (conf->previous_raid_disks - 1);
+ mddev->array_size = mddev->size * (conf->previous_raid_disks -
+ conf->max_degraded);
return 0;
abort:
if (conf) {
print_raid5_conf(conf);
+ safe_put_page(conf->spare_page);
kfree(conf->disks);
kfree(conf->stripe_hashtbl);
kfree(conf);
@@ -2427,23 +3305,23 @@ static int stop(mddev_t *mddev)
}
#if RAID5_DEBUG
-static void print_sh (struct stripe_head *sh)
+static void print_sh (struct seq_file *seq, struct stripe_head *sh)
{
int i;
- printk("sh %llu, pd_idx %d, state %ld.\n",
- (unsigned long long)sh->sector, sh->pd_idx, sh->state);
- printk("sh %llu, count %d.\n",
- (unsigned long long)sh->sector, atomic_read(&sh->count));
- printk("sh %llu, ", (unsigned long long)sh->sector);
+ seq_printf(seq, "sh %llu, pd_idx %d, state %ld.\n",
+ (unsigned long long)sh->sector, sh->pd_idx, sh->state);
+ seq_printf(seq, "sh %llu, count %d.\n",
+ (unsigned long long)sh->sector, atomic_read(&sh->count));
+ seq_printf(seq, "sh %llu, ", (unsigned long long)sh->sector);
for (i = 0; i < sh->disks; i++) {
- printk("(cache%d: %p %ld) ",
- i, sh->dev[i].page, sh->dev[i].flags);
+ seq_printf(seq, "(cache%d: %p %ld) ",
+ i, sh->dev[i].page, sh->dev[i].flags);
}
- printk("\n");
+ seq_printf(seq, "\n");
}
-static void printall (raid5_conf_t *conf)
+static void printall (struct seq_file *seq, raid5_conf_t *conf)
{
struct stripe_head *sh;
struct hlist_node *hn;
@@ -2454,7 +3332,7 @@ static void printall (raid5_conf_t *conf)
hlist_for_each_entry(sh, hn, &conf->stripe_hashtbl[i], hash) {
if (sh->raid_conf != conf)
continue;
- print_sh(sh);
+ print_sh(seq, sh);
}
}
spin_unlock_irq(&conf->device_lock);
@@ -2474,9 +3352,8 @@ static void status (struct seq_file *seq, mddev_t *mddev)
test_bit(In_sync, &conf->disks[i].rdev->flags) ? "U" : "_");
seq_printf (seq, "]");
#if RAID5_DEBUG
-#define D(x) \
- seq_printf (seq, "<"#x":%d>", atomic_read(&conf->x))
- printall(conf);
+ seq_printf (seq, "\n");
+ printall(seq, conf);
#endif
}
@@ -2560,14 +3437,20 @@ static int raid5_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
int disk;
struct disk_info *p;
- if (mddev->degraded > 1)
+ if (mddev->degraded > conf->max_degraded)
/* no point adding a device */
return 0;
/*
- * find the disk ...
+ * find the disk ... but prefer rdev->saved_raid_disk
+ * if possible.
*/
- for (disk=0; disk < conf->raid_disks; disk++)
+ if (rdev->saved_raid_disk >= 0 &&
+ conf->disks[rdev->saved_raid_disk].rdev == NULL)
+ disk = rdev->saved_raid_disk;
+ else
+ disk = 0;
+ for ( ; disk < conf->raid_disks; disk++)
if ((p=conf->disks + disk)->rdev == NULL) {
clear_bit(In_sync, &rdev->flags);
rdev->raid_disk = disk;
@@ -2590,8 +3473,10 @@ static int raid5_resize(mddev_t *mddev, sector_t sectors)
* any io in the removed space completes, but it hardly seems
* worth it.
*/
+ raid5_conf_t *conf = mddev_to_conf(mddev);
+
sectors &= ~((sector_t)mddev->chunk_size/512 - 1);
- mddev->array_size = (sectors * (mddev->raid_disks-1))>>1;
+ mddev->array_size = (sectors * (mddev->raid_disks-conf->max_degraded))>>1;
set_capacity(mddev->gendisk, mddev->array_size << 1);
mddev->changed = 1;
if (sectors/2 > mddev->size && mddev->recovery_cp == MaxSector) {
@@ -2680,6 +3565,7 @@ static int raid5_start_reshape(mddev_t *mddev)
set_bit(In_sync, &rdev->flags);
conf->working_disks++;
added_devices++;
+ rdev->recovery_offset = 0;
sprintf(nm, "rd%d", rdev->raid_disk);
sysfs_create_link(&mddev->kobj, &rdev->kobj, nm);
} else
@@ -2731,6 +3617,17 @@ static void end_reshape(raid5_conf_t *conf)
conf->expand_progress = MaxSector;
spin_unlock_irq(&conf->device_lock);
conf->mddev->reshape_position = MaxSector;
+
+ /* read-ahead size must cover two whole stripes, which is
+ * 2 * (datadisks) * chunksize where 'n' is the number of raid devices
+ */
+ {
+ int data_disks = conf->previous_raid_disks - conf->max_degraded;
+ int stripe = data_disks *
+ (conf->mddev->chunk_size / PAGE_SIZE);
+ if (conf->mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
+ conf->mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
+ }
}
}
@@ -2762,6 +3659,23 @@ static void raid5_quiesce(mddev_t *mddev, int state)
}
}
+static struct mdk_personality raid6_personality =
+{
+ .name = "raid6",
+ .level = 6,
+ .owner = THIS_MODULE,
+ .make_request = make_request,
+ .run = run,
+ .stop = stop,
+ .status = status,
+ .error_handler = error,
+ .hot_add_disk = raid5_add_disk,
+ .hot_remove_disk= raid5_remove_disk,
+ .spare_active = raid5_spare_active,
+ .sync_request = sync_request,
+ .resize = raid5_resize,
+ .quiesce = raid5_quiesce,
+};
static struct mdk_personality raid5_personality =
{
.name = "raid5",
@@ -2804,6 +3718,12 @@ static struct mdk_personality raid4_personality =
static int __init raid5_init(void)
{
+ int e;
+
+ e = raid6_select_algo();
+ if ( e )
+ return e;
+ register_md_personality(&raid6_personality);
register_md_personality(&raid5_personality);
register_md_personality(&raid4_personality);
return 0;
@@ -2811,6 +3731,7 @@ static int __init raid5_init(void)
static void raid5_exit(void)
{
+ unregister_md_personality(&raid6_personality);
unregister_md_personality(&raid5_personality);
unregister_md_personality(&raid4_personality);
}
@@ -2823,3 +3744,10 @@ MODULE_ALIAS("md-raid5");
MODULE_ALIAS("md-raid4");
MODULE_ALIAS("md-level-5");
MODULE_ALIAS("md-level-4");
+MODULE_ALIAS("md-personality-8"); /* RAID6 */
+MODULE_ALIAS("md-raid6");
+MODULE_ALIAS("md-level-6");
+
+/* This used to be two separate modules, they were: */
+MODULE_ALIAS("raid5");
+MODULE_ALIAS("raid6");
diff --git a/drivers/md/raid6main.c b/drivers/md/raid6main.c
deleted file mode 100644
index bc69355e010..00000000000
--- a/drivers/md/raid6main.c
+++ /dev/null
@@ -1,2427 +0,0 @@
-/*
- * raid6main.c : Multiple Devices driver for Linux
- * Copyright (C) 1996, 1997 Ingo Molnar, Miguel de Icaza, Gadi Oxman
- * Copyright (C) 1999, 2000 Ingo Molnar
- * Copyright (C) 2002, 2003 H. Peter Anvin
- *
- * RAID-6 management functions. This code is derived from raid5.c.
- * Last merge from raid5.c bkcvs version 1.79 (kernel 2.6.1).
- *
- * Thanks to Penguin Computing for making the RAID-6 development possible
- * by donating a test server!
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * You should have received a copy of the GNU General Public License
- * (for example /usr/src/linux/COPYING); if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/highmem.h>
-#include <linux/bitops.h>
-#include <asm/atomic.h>
-#include "raid6.h"
-
-#include <linux/raid/bitmap.h>
-
-/*
- * Stripe cache
- */
-
-#define NR_STRIPES 256
-#define STRIPE_SIZE PAGE_SIZE
-#define STRIPE_SHIFT (PAGE_SHIFT - 9)
-#define STRIPE_SECTORS (STRIPE_SIZE>>9)
-#define IO_THRESHOLD 1
-#define NR_HASH (PAGE_SIZE / sizeof(struct hlist_head))
-#define HASH_MASK (NR_HASH - 1)
-
-#define stripe_hash(conf, sect) (&((conf)->stripe_hashtbl[((sect) >> STRIPE_SHIFT) & HASH_MASK]))
-
-/* bio's attached to a stripe+device for I/O are linked together in bi_sector
- * order without overlap. There may be several bio's per stripe+device, and
- * a bio could span several devices.
- * When walking this list for a particular stripe+device, we must never proceed
- * beyond a bio that extends past this device, as the next bio might no longer
- * be valid.
- * This macro is used to determine the 'next' bio in the list, given the sector
- * of the current stripe+device
- */
-#define r5_next_bio(bio, sect) ( ( (bio)->bi_sector + ((bio)->bi_size>>9) < sect + STRIPE_SECTORS) ? (bio)->bi_next : NULL)
-/*
- * The following can be used to debug the driver
- */
-#define RAID6_DEBUG 0 /* Extremely verbose printk */
-#define RAID6_PARANOIA 1 /* Check spinlocks */
-#define RAID6_DUMPSTATE 0 /* Include stripe cache state in /proc/mdstat */
-#if RAID6_PARANOIA && defined(CONFIG_SMP)
-# define CHECK_DEVLOCK() assert_spin_locked(&conf->device_lock)
-#else
-# define CHECK_DEVLOCK()
-#endif
-
-#define PRINTK(x...) ((void)(RAID6_DEBUG && printk(KERN_DEBUG x)))
-#if RAID6_DEBUG
-#undef inline
-#undef __inline__
-#define inline
-#define __inline__
-#endif
-
-#if !RAID6_USE_EMPTY_ZERO_PAGE
-/* In .bss so it's zeroed */
-const char raid6_empty_zero_page[PAGE_SIZE] __attribute__((aligned(256)));
-#endif
-
-static inline int raid6_next_disk(int disk, int raid_disks)
-{
- disk++;
- return (disk < raid_disks) ? disk : 0;
-}
-
-static void print_raid6_conf (raid6_conf_t *conf);
-
-static void __release_stripe(raid6_conf_t *conf, struct stripe_head *sh)
-{
- if (atomic_dec_and_test(&sh->count)) {
- BUG_ON(!list_empty(&sh->lru));
- BUG_ON(atomic_read(&conf->active_stripes)==0);
- if (test_bit(STRIPE_HANDLE, &sh->state)) {
- if (test_bit(STRIPE_DELAYED, &sh->state))
- list_add_tail(&sh->lru, &conf->delayed_list);
- else if (test_bit(STRIPE_BIT_DELAY, &sh->state) &&
- conf->seq_write == sh->bm_seq)
- list_add_tail(&sh->lru, &conf->bitmap_list);
- else {
- clear_bit(STRIPE_BIT_DELAY, &sh->state);
- list_add_tail(&sh->lru, &conf->handle_list);
- }
- md_wakeup_thread(conf->mddev->thread);
- } else {
- if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) {
- atomic_dec(&conf->preread_active_stripes);
- if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD)
- md_wakeup_thread(conf->mddev->thread);
- }
- list_add_tail(&sh->lru, &conf->inactive_list);
- atomic_dec(&conf->active_stripes);
- if (!conf->inactive_blocked ||
- atomic_read(&conf->active_stripes) < (conf->max_nr_stripes*3/4))
- wake_up(&conf->wait_for_stripe);
- }
- }
-}
-static void release_stripe(struct stripe_head *sh)
-{
- raid6_conf_t *conf = sh->raid_conf;
- unsigned long flags;
-
- spin_lock_irqsave(&conf->device_lock, flags);
- __release_stripe(conf, sh);
- spin_unlock_irqrestore(&conf->device_lock, flags);
-}
-
-static inline void remove_hash(struct stripe_head *sh)
-{
- PRINTK("remove_hash(), stripe %llu\n", (unsigned long long)sh->sector);
-
- hlist_del_init(&sh->hash);
-}
-
-static inline void insert_hash(raid6_conf_t *conf, struct stripe_head *sh)
-{
- struct hlist_head *hp = stripe_hash(conf, sh->sector);
-
- PRINTK("insert_hash(), stripe %llu\n", (unsigned long long)sh->sector);
-
- CHECK_DEVLOCK();
- hlist_add_head(&sh->hash, hp);
-}
-
-
-/* find an idle stripe, make sure it is unhashed, and return it. */
-static struct stripe_head *get_free_stripe(raid6_conf_t *conf)
-{
- struct stripe_head *sh = NULL;
- struct list_head *first;
-
- CHECK_DEVLOCK();
- if (list_empty(&conf->inactive_list))
- goto out;
- first = conf->inactive_list.next;
- sh = list_entry(first, struct stripe_head, lru);
- list_del_init(first);
- remove_hash(sh);
- atomic_inc(&conf->active_stripes);
-out:
- return sh;
-}
-
-static void shrink_buffers(struct stripe_head *sh, int num)
-{
- struct page *p;
- int i;
-
- for (i=0; i<num ; i++) {
- p = sh->dev[i].page;
- if (!p)
- continue;
- sh->dev[i].page = NULL;
- put_page(p);
- }
-}
-
-static int grow_buffers(struct stripe_head *sh, int num)
-{
- int i;
-
- for (i=0; i<num; i++) {
- struct page *page;
-
- if (!(page = alloc_page(GFP_KERNEL))) {
- return 1;
- }
- sh->dev[i].page = page;
- }
- return 0;
-}
-
-static void raid6_build_block (struct stripe_head *sh, int i);
-
-static void init_stripe(struct stripe_head *sh, sector_t sector, int pd_idx)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
-
- BUG_ON(atomic_read(&sh->count) != 0);
- BUG_ON(test_bit(STRIPE_HANDLE, &sh->state));
-
- CHECK_DEVLOCK();
- PRINTK("init_stripe called, stripe %llu\n",
- (unsigned long long)sh->sector);
-
- remove_hash(sh);
-
- sh->sector = sector;
- sh->pd_idx = pd_idx;
- sh->state = 0;
-
- for (i=disks; i--; ) {
- struct r5dev *dev = &sh->dev[i];
-
- if (dev->toread || dev->towrite || dev->written ||
- test_bit(R5_LOCKED, &dev->flags)) {
- PRINTK("sector=%llx i=%d %p %p %p %d\n",
- (unsigned long long)sh->sector, i, dev->toread,
- dev->towrite, dev->written,
- test_bit(R5_LOCKED, &dev->flags));
- BUG();
- }
- dev->flags = 0;
- raid6_build_block(sh, i);
- }
- insert_hash(conf, sh);
-}
-
-static struct stripe_head *__find_stripe(raid6_conf_t *conf, sector_t sector)
-{
- struct stripe_head *sh;
- struct hlist_node *hn;
-
- CHECK_DEVLOCK();
- PRINTK("__find_stripe, sector %llu\n", (unsigned long long)sector);
- hlist_for_each_entry (sh, hn, stripe_hash(conf, sector), hash)
- if (sh->sector == sector)
- return sh;
- PRINTK("__stripe %llu not in cache\n", (unsigned long long)sector);
- return NULL;
-}
-
-static void unplug_slaves(mddev_t *mddev);
-
-static struct stripe_head *get_active_stripe(raid6_conf_t *conf, sector_t sector,
- int pd_idx, int noblock)
-{
- struct stripe_head *sh;
-
- PRINTK("get_stripe, sector %llu\n", (unsigned long long)sector);
-
- spin_lock_irq(&conf->device_lock);
-
- do {
- wait_event_lock_irq(conf->wait_for_stripe,
- conf->quiesce == 0,
- conf->device_lock, /* nothing */);
- sh = __find_stripe(conf, sector);
- if (!sh) {
- if (!conf->inactive_blocked)
- sh = get_free_stripe(conf);
- if (noblock && sh == NULL)
- break;
- if (!sh) {
- conf->inactive_blocked = 1;
- wait_event_lock_irq(conf->wait_for_stripe,
- !list_empty(&conf->inactive_list) &&
- (atomic_read(&conf->active_stripes)
- < (conf->max_nr_stripes *3/4)
- || !conf->inactive_blocked),
- conf->device_lock,
- unplug_slaves(conf->mddev);
- );
- conf->inactive_blocked = 0;
- } else
- init_stripe(sh, sector, pd_idx);
- } else {
- if (atomic_read(&sh->count)) {
- BUG_ON(!list_empty(&sh->lru));
- } else {
- if (!test_bit(STRIPE_HANDLE, &sh->state))
- atomic_inc(&conf->active_stripes);
- BUG_ON(list_empty(&sh->lru));
- list_del_init(&sh->lru);
- }
- }
- } while (sh == NULL);
-
- if (sh)
- atomic_inc(&sh->count);
-
- spin_unlock_irq(&conf->device_lock);
- return sh;
-}
-
-static int grow_one_stripe(raid6_conf_t *conf)
-{
- struct stripe_head *sh;
- sh = kmem_cache_alloc(conf->slab_cache, GFP_KERNEL);
- if (!sh)
- return 0;
- memset(sh, 0, sizeof(*sh) + (conf->raid_disks-1)*sizeof(struct r5dev));
- sh->raid_conf = conf;
- spin_lock_init(&sh->lock);
-
- if (grow_buffers(sh, conf->raid_disks)) {
- shrink_buffers(sh, conf->raid_disks);
- kmem_cache_free(conf->slab_cache, sh);
- return 0;
- }
- /* we just created an active stripe so... */
- atomic_set(&sh->count, 1);
- atomic_inc(&conf->active_stripes);
- INIT_LIST_HEAD(&sh->lru);
- release_stripe(sh);
- return 1;
-}
-
-static int grow_stripes(raid6_conf_t *conf, int num)
-{
- kmem_cache_t *sc;
- int devs = conf->raid_disks;
-
- sprintf(conf->cache_name[0], "raid6/%s", mdname(conf->mddev));
-
- sc = kmem_cache_create(conf->cache_name[0],
- sizeof(struct stripe_head)+(devs-1)*sizeof(struct r5dev),
- 0, 0, NULL, NULL);
- if (!sc)
- return 1;
- conf->slab_cache = sc;
- while (num--)
- if (!grow_one_stripe(conf))
- return 1;
- return 0;
-}
-
-static int drop_one_stripe(raid6_conf_t *conf)
-{
- struct stripe_head *sh;
- spin_lock_irq(&conf->device_lock);
- sh = get_free_stripe(conf);
- spin_unlock_irq(&conf->device_lock);
- if (!sh)
- return 0;
- BUG_ON(atomic_read(&sh->count));
- shrink_buffers(sh, conf->raid_disks);
- kmem_cache_free(conf->slab_cache, sh);
- atomic_dec(&conf->active_stripes);
- return 1;
-}
-
-static void shrink_stripes(raid6_conf_t *conf)
-{
- while (drop_one_stripe(conf))
- ;
-
- if (conf->slab_cache)
- kmem_cache_destroy(conf->slab_cache);
- conf->slab_cache = NULL;
-}
-
-static int raid6_end_read_request(struct bio * bi, unsigned int bytes_done,
- int error)
-{
- struct stripe_head *sh = bi->bi_private;
- raid6_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
- int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
-
- if (bi->bi_size)
- return 1;
-
- for (i=0 ; i<disks; i++)
- if (bi == &sh->dev[i].req)
- break;
-
- PRINTK("end_read_request %llu/%d, count: %d, uptodate %d.\n",
- (unsigned long long)sh->sector, i, atomic_read(&sh->count),
- uptodate);
- if (i == disks) {
- BUG();
- return 0;
- }
-
- if (uptodate) {
-#if 0
- struct bio *bio;
- unsigned long flags;
- spin_lock_irqsave(&conf->device_lock, flags);
- /* we can return a buffer if we bypassed the cache or
- * if the top buffer is not in highmem. If there are
- * multiple buffers, leave the extra work to
- * handle_stripe
- */
- buffer = sh->bh_read[i];
- if (buffer &&
- (!PageHighMem(buffer->b_page)
- || buffer->b_page == bh->b_page )
- ) {
- sh->bh_read[i] = buffer->b_reqnext;
- buffer->b_reqnext = NULL;
- } else
- buffer = NULL;
- spin_unlock_irqrestore(&conf->device_lock, flags);
- if (sh->bh_page[i]==bh->b_page)
- set_buffer_uptodate(bh);
- if (buffer) {
- if (buffer->b_page != bh->b_page)
- memcpy(buffer->b_data, bh->b_data, bh->b_size);
- buffer->b_end_io(buffer, 1);
- }
-#else
- set_bit(R5_UPTODATE, &sh->dev[i].flags);
-#endif
- if (test_bit(R5_ReadError, &sh->dev[i].flags)) {
- printk(KERN_INFO "raid6: read error corrected!!\n");
- clear_bit(R5_ReadError, &sh->dev[i].flags);
- clear_bit(R5_ReWrite, &sh->dev[i].flags);
- }
- if (atomic_read(&conf->disks[i].rdev->read_errors))
- atomic_set(&conf->disks[i].rdev->read_errors, 0);
- } else {
- int retry = 0;
- clear_bit(R5_UPTODATE, &sh->dev[i].flags);
- atomic_inc(&conf->disks[i].rdev->read_errors);
- if (conf->mddev->degraded)
- printk(KERN_WARNING "raid6: read error not correctable.\n");
- else if (test_bit(R5_ReWrite, &sh->dev[i].flags))
- /* Oh, no!!! */
- printk(KERN_WARNING "raid6: read error NOT corrected!!\n");
- else if (atomic_read(&conf->disks[i].rdev->read_errors)
- > conf->max_nr_stripes)
- printk(KERN_WARNING
- "raid6: Too many read errors, failing device.\n");
- else
- retry = 1;
- if (retry)
- set_bit(R5_ReadError, &sh->dev[i].flags);
- else {
- clear_bit(R5_ReadError, &sh->dev[i].flags);
- clear_bit(R5_ReWrite, &sh->dev[i].flags);
- md_error(conf->mddev, conf->disks[i].rdev);
- }
- }
- rdev_dec_pending(conf->disks[i].rdev, conf->mddev);
-#if 0
- /* must restore b_page before unlocking buffer... */
- if (sh->bh_page[i] != bh->b_page) {
- bh->b_page = sh->bh_page[i];
- bh->b_data = page_address(bh->b_page);
- clear_buffer_uptodate(bh);
- }
-#endif
- clear_bit(R5_LOCKED, &sh->dev[i].flags);
- set_bit(STRIPE_HANDLE, &sh->state);
- release_stripe(sh);
- return 0;
-}
-
-static int raid6_end_write_request (struct bio *bi, unsigned int bytes_done,
- int error)
-{
- struct stripe_head *sh = bi->bi_private;
- raid6_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks, i;
- unsigned long flags;
- int uptodate = test_bit(BIO_UPTODATE, &bi->bi_flags);
-
- if (bi->bi_size)
- return 1;
-
- for (i=0 ; i<disks; i++)
- if (bi == &sh->dev[i].req)
- break;
-
- PRINTK("end_write_request %llu/%d, count %d, uptodate: %d.\n",
- (unsigned long long)sh->sector, i, atomic_read(&sh->count),
- uptodate);
- if (i == disks) {
- BUG();
- return 0;
- }
-
- spin_lock_irqsave(&conf->device_lock, flags);
- if (!uptodate)
- md_error(conf->mddev, conf->disks[i].rdev);
-
- rdev_dec_pending(conf->disks[i].rdev, conf->mddev);
-
- clear_bit(R5_LOCKED, &sh->dev[i].flags);
- set_bit(STRIPE_HANDLE, &sh->state);
- __release_stripe(conf, sh);
- spin_unlock_irqrestore(&conf->device_lock, flags);
- return 0;
-}
-
-
-static sector_t compute_blocknr(struct stripe_head *sh, int i);
-
-static void raid6_build_block (struct stripe_head *sh, int i)
-{
- struct r5dev *dev = &sh->dev[i];
- int pd_idx = sh->pd_idx;
- int qd_idx = raid6_next_disk(pd_idx, sh->raid_conf->raid_disks);
-
- bio_init(&dev->req);
- dev->req.bi_io_vec = &dev->vec;
- dev->req.bi_vcnt++;
- dev->req.bi_max_vecs++;
- dev->vec.bv_page = dev->page;
- dev->vec.bv_len = STRIPE_SIZE;
- dev->vec.bv_offset = 0;
-
- dev->req.bi_sector = sh->sector;
- dev->req.bi_private = sh;
-
- dev->flags = 0;
- if (i != pd_idx && i != qd_idx)
- dev->sector = compute_blocknr(sh, i);
-}
-
-static void error(mddev_t *mddev, mdk_rdev_t *rdev)
-{
- char b[BDEVNAME_SIZE];
- raid6_conf_t *conf = (raid6_conf_t *) mddev->private;
- PRINTK("raid6: error called\n");
-
- if (!test_bit(Faulty, &rdev->flags)) {
- mddev->sb_dirty = 1;
- if (test_bit(In_sync, &rdev->flags)) {
- conf->working_disks--;
- mddev->degraded++;
- conf->failed_disks++;
- clear_bit(In_sync, &rdev->flags);
- /*
- * if recovery was running, make sure it aborts.
- */
- set_bit(MD_RECOVERY_ERR, &mddev->recovery);
- }
- set_bit(Faulty, &rdev->flags);
- printk (KERN_ALERT
- "raid6: Disk failure on %s, disabling device."
- " Operation continuing on %d devices\n",
- bdevname(rdev->bdev,b), conf->working_disks);
- }
-}
-
-/*
- * Input: a 'big' sector number,
- * Output: index of the data and parity disk, and the sector # in them.
- */
-static sector_t raid6_compute_sector(sector_t r_sector, unsigned int raid_disks,
- unsigned int data_disks, unsigned int * dd_idx,
- unsigned int * pd_idx, raid6_conf_t *conf)
-{
- long stripe;
- unsigned long chunk_number;
- unsigned int chunk_offset;
- sector_t new_sector;
- int sectors_per_chunk = conf->chunk_size >> 9;
-
- /* First compute the information on this sector */
-
- /*
- * Compute the chunk number and the sector offset inside the chunk
- */
- chunk_offset = sector_div(r_sector, sectors_per_chunk);
- chunk_number = r_sector;
- if ( r_sector != chunk_number ) {
- printk(KERN_CRIT "raid6: ERROR: r_sector = %llu, chunk_number = %lu\n",
- (unsigned long long)r_sector, (unsigned long)chunk_number);
- BUG();
- }
-
- /*
- * Compute the stripe number
- */
- stripe = chunk_number / data_disks;
-
- /*
- * Compute the data disk and parity disk indexes inside the stripe
- */
- *dd_idx = chunk_number % data_disks;
-
- /*
- * Select the parity disk based on the user selected algorithm.
- */
-
- /**** FIX THIS ****/
- switch (conf->algorithm) {
- case ALGORITHM_LEFT_ASYMMETRIC:
- *pd_idx = raid_disks - 1 - (stripe % raid_disks);
- if (*pd_idx == raid_disks-1)
- (*dd_idx)++; /* Q D D D P */
- else if (*dd_idx >= *pd_idx)
- (*dd_idx) += 2; /* D D P Q D */
- break;
- case ALGORITHM_RIGHT_ASYMMETRIC:
- *pd_idx = stripe % raid_disks;
- if (*pd_idx == raid_disks-1)
- (*dd_idx)++; /* Q D D D P */
- else if (*dd_idx >= *pd_idx)
- (*dd_idx) += 2; /* D D P Q D */
- break;
- case ALGORITHM_LEFT_SYMMETRIC:
- *pd_idx = raid_disks - 1 - (stripe % raid_disks);
- *dd_idx = (*pd_idx + 2 + *dd_idx) % raid_disks;
- break;
- case ALGORITHM_RIGHT_SYMMETRIC:
- *pd_idx = stripe % raid_disks;
- *dd_idx = (*pd_idx + 2 + *dd_idx) % raid_disks;
- break;
- default:
- printk (KERN_CRIT "raid6: unsupported algorithm %d\n",
- conf->algorithm);
- }
-
- PRINTK("raid6: chunk_number = %lu, pd_idx = %u, dd_idx = %u\n",
- chunk_number, *pd_idx, *dd_idx);
-
- /*
- * Finally, compute the new sector number
- */
- new_sector = (sector_t) stripe * sectors_per_chunk + chunk_offset;
- return new_sector;
-}
-
-
-static sector_t compute_blocknr(struct stripe_head *sh, int i)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int raid_disks = conf->raid_disks, data_disks = raid_disks - 2;
- sector_t new_sector = sh->sector, check;
- int sectors_per_chunk = conf->chunk_size >> 9;
- sector_t stripe;
- int chunk_offset;
- int chunk_number, dummy1, dummy2, dd_idx = i;
- sector_t r_sector;
- int i0 = i;
-
- chunk_offset = sector_div(new_sector, sectors_per_chunk);
- stripe = new_sector;
- if ( new_sector != stripe ) {
- printk(KERN_CRIT "raid6: ERROR: new_sector = %llu, stripe = %lu\n",
- (unsigned long long)new_sector, (unsigned long)stripe);
- BUG();
- }
-
- switch (conf->algorithm) {
- case ALGORITHM_LEFT_ASYMMETRIC:
- case ALGORITHM_RIGHT_ASYMMETRIC:
- if (sh->pd_idx == raid_disks-1)
- i--; /* Q D D D P */
- else if (i > sh->pd_idx)
- i -= 2; /* D D P Q D */
- break;
- case ALGORITHM_LEFT_SYMMETRIC:
- case ALGORITHM_RIGHT_SYMMETRIC:
- if (sh->pd_idx == raid_disks-1)
- i--; /* Q D D D P */
- else {
- /* D D P Q D */
- if (i < sh->pd_idx)
- i += raid_disks;
- i -= (sh->pd_idx + 2);
- }
- break;
- default:
- printk (KERN_CRIT "raid6: unsupported algorithm %d\n",
- conf->algorithm);
- }
-
- PRINTK("raid6: compute_blocknr: pd_idx = %u, i0 = %u, i = %u\n", sh->pd_idx, i0, i);
-
- chunk_number = stripe * data_disks + i;
- r_sector = (sector_t)chunk_number * sectors_per_chunk + chunk_offset;
-
- check = raid6_compute_sector (r_sector, raid_disks, data_disks, &dummy1, &dummy2, conf);
- if (check != sh->sector || dummy1 != dd_idx || dummy2 != sh->pd_idx) {
- printk(KERN_CRIT "raid6: compute_blocknr: map not correct\n");
- return 0;
- }
- return r_sector;
-}
-
-
-
-/*
- * Copy data between a page in the stripe cache, and one or more bion
- * The page could align with the middle of the bio, or there could be
- * several bion, each with several bio_vecs, which cover part of the page
- * Multiple bion are linked together on bi_next. There may be extras
- * at the end of this list. We ignore them.
- */
-static void copy_data(int frombio, struct bio *bio,
- struct page *page,
- sector_t sector)
-{
- char *pa = page_address(page);
- struct bio_vec *bvl;
- int i;
- int page_offset;
-
- if (bio->bi_sector >= sector)
- page_offset = (signed)(bio->bi_sector - sector) * 512;
- else
- page_offset = (signed)(sector - bio->bi_sector) * -512;
- bio_for_each_segment(bvl, bio, i) {
- int len = bio_iovec_idx(bio,i)->bv_len;
- int clen;
- int b_offset = 0;
-
- if (page_offset < 0) {
- b_offset = -page_offset;
- page_offset += b_offset;
- len -= b_offset;
- }
-
- if (len > 0 && page_offset + len > STRIPE_SIZE)
- clen = STRIPE_SIZE - page_offset;
- else clen = len;
-
- if (clen > 0) {
- char *ba = __bio_kmap_atomic(bio, i, KM_USER0);
- if (frombio)
- memcpy(pa+page_offset, ba+b_offset, clen);
- else
- memcpy(ba+b_offset, pa+page_offset, clen);
- __bio_kunmap_atomic(ba, KM_USER0);
- }
- if (clen < len) /* hit end of page */
- break;
- page_offset += len;
- }
-}
-
-#define check_xor() do { \
- if (count == MAX_XOR_BLOCKS) { \
- xor_block(count, STRIPE_SIZE, ptr); \
- count = 1; \
- } \
- } while(0)
-
-/* Compute P and Q syndromes */
-static void compute_parity(struct stripe_head *sh, int method)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int i, pd_idx = sh->pd_idx, qd_idx, d0_idx, disks = conf->raid_disks, count;
- struct bio *chosen;
- /**** FIX THIS: This could be very bad if disks is close to 256 ****/
- void *ptrs[disks];
-
- qd_idx = raid6_next_disk(pd_idx, disks);
- d0_idx = raid6_next_disk(qd_idx, disks);
-
- PRINTK("compute_parity, stripe %llu, method %d\n",
- (unsigned long long)sh->sector, method);
-
- switch(method) {
- case READ_MODIFY_WRITE:
- BUG(); /* READ_MODIFY_WRITE N/A for RAID-6 */
- case RECONSTRUCT_WRITE:
- for (i= disks; i-- ;)
- if ( i != pd_idx && i != qd_idx && sh->dev[i].towrite ) {
- chosen = sh->dev[i].towrite;
- sh->dev[i].towrite = NULL;
-
- if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
- wake_up(&conf->wait_for_overlap);
-
- BUG_ON(sh->dev[i].written);
- sh->dev[i].written = chosen;
- }
- break;
- case CHECK_PARITY:
- BUG(); /* Not implemented yet */
- }
-
- for (i = disks; i--;)
- if (sh->dev[i].written) {
- sector_t sector = sh->dev[i].sector;
- struct bio *wbi = sh->dev[i].written;
- while (wbi && wbi->bi_sector < sector + STRIPE_SECTORS) {
- copy_data(1, wbi, sh->dev[i].page, sector);
- wbi = r5_next_bio(wbi, sector);
- }
-
- set_bit(R5_LOCKED, &sh->dev[i].flags);
- set_bit(R5_UPTODATE, &sh->dev[i].flags);
- }
-
-// switch(method) {
-// case RECONSTRUCT_WRITE:
-// case CHECK_PARITY:
-// case UPDATE_PARITY:
- /* Note that unlike RAID-5, the ordering of the disks matters greatly. */
- /* FIX: Is this ordering of drives even remotely optimal? */
- count = 0;
- i = d0_idx;
- do {
- ptrs[count++] = page_address(sh->dev[i].page);
- if (count <= disks-2 && !test_bit(R5_UPTODATE, &sh->dev[i].flags))
- printk("block %d/%d not uptodate on parity calc\n", i,count);
- i = raid6_next_disk(i, disks);
- } while ( i != d0_idx );
-// break;
-// }
-
- raid6_call.gen_syndrome(disks, STRIPE_SIZE, ptrs);
-
- switch(method) {
- case RECONSTRUCT_WRITE:
- set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags);
- set_bit(R5_UPTODATE, &sh->dev[qd_idx].flags);
- set_bit(R5_LOCKED, &sh->dev[pd_idx].flags);
- set_bit(R5_LOCKED, &sh->dev[qd_idx].flags);
- break;
- case UPDATE_PARITY:
- set_bit(R5_UPTODATE, &sh->dev[pd_idx].flags);
- set_bit(R5_UPTODATE, &sh->dev[qd_idx].flags);
- break;
- }
-}
-
-/* Compute one missing block */
-static void compute_block_1(struct stripe_head *sh, int dd_idx, int nozero)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int i, count, disks = conf->raid_disks;
- void *ptr[MAX_XOR_BLOCKS], *p;
- int pd_idx = sh->pd_idx;
- int qd_idx = raid6_next_disk(pd_idx, disks);
-
- PRINTK("compute_block_1, stripe %llu, idx %d\n",
- (unsigned long long)sh->sector, dd_idx);
-
- if ( dd_idx == qd_idx ) {
- /* We're actually computing the Q drive */
- compute_parity(sh, UPDATE_PARITY);
- } else {
- ptr[0] = page_address(sh->dev[dd_idx].page);
- if (!nozero) memset(ptr[0], 0, STRIPE_SIZE);
- count = 1;
- for (i = disks ; i--; ) {
- if (i == dd_idx || i == qd_idx)
- continue;
- p = page_address(sh->dev[i].page);
- if (test_bit(R5_UPTODATE, &sh->dev[i].flags))
- ptr[count++] = p;
- else
- printk("compute_block() %d, stripe %llu, %d"
- " not present\n", dd_idx,
- (unsigned long long)sh->sector, i);
-
- check_xor();
- }
- if (count != 1)
- xor_block(count, STRIPE_SIZE, ptr);
- if (!nozero) set_bit(R5_UPTODATE, &sh->dev[dd_idx].flags);
- else clear_bit(R5_UPTODATE, &sh->dev[dd_idx].flags);
- }
-}
-
-/* Compute two missing blocks */
-static void compute_block_2(struct stripe_head *sh, int dd_idx1, int dd_idx2)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int i, count, disks = conf->raid_disks;
- int pd_idx = sh->pd_idx;
- int qd_idx = raid6_next_disk(pd_idx, disks);
- int d0_idx = raid6_next_disk(qd_idx, disks);
- int faila, failb;
-
- /* faila and failb are disk numbers relative to d0_idx */
- /* pd_idx become disks-2 and qd_idx become disks-1 */
- faila = (dd_idx1 < d0_idx) ? dd_idx1+(disks-d0_idx) : dd_idx1-d0_idx;
- failb = (dd_idx2 < d0_idx) ? dd_idx2+(disks-d0_idx) : dd_idx2-d0_idx;
-
- BUG_ON(faila == failb);
- if ( failb < faila ) { int tmp = faila; faila = failb; failb = tmp; }
-
- PRINTK("compute_block_2, stripe %llu, idx %d,%d (%d,%d)\n",
- (unsigned long long)sh->sector, dd_idx1, dd_idx2, faila, failb);
-
- if ( failb == disks-1 ) {
- /* Q disk is one of the missing disks */
- if ( faila == disks-2 ) {
- /* Missing P+Q, just recompute */
- compute_parity(sh, UPDATE_PARITY);
- return;
- } else {
- /* We're missing D+Q; recompute D from P */
- compute_block_1(sh, (dd_idx1 == qd_idx) ? dd_idx2 : dd_idx1, 0);
- compute_parity(sh, UPDATE_PARITY); /* Is this necessary? */
- return;
- }
- }
-
- /* We're missing D+P or D+D; build pointer table */
- {
- /**** FIX THIS: This could be very bad if disks is close to 256 ****/
- void *ptrs[disks];
-
- count = 0;
- i = d0_idx;
- do {
- ptrs[count++] = page_address(sh->dev[i].page);
- i = raid6_next_disk(i, disks);
- if (i != dd_idx1 && i != dd_idx2 &&
- !test_bit(R5_UPTODATE, &sh->dev[i].flags))
- printk("compute_2 with missing block %d/%d\n", count, i);
- } while ( i != d0_idx );
-
- if ( failb == disks-2 ) {
- /* We're missing D+P. */
- raid6_datap_recov(disks, STRIPE_SIZE, faila, ptrs);
- } else {
- /* We're missing D+D. */
- raid6_2data_recov(disks, STRIPE_SIZE, faila, failb, ptrs);
- }
-
- /* Both the above update both missing blocks */
- set_bit(R5_UPTODATE, &sh->dev[dd_idx1].flags);
- set_bit(R5_UPTODATE, &sh->dev[dd_idx2].flags);
- }
-}
-
-
-/*
- * Each stripe/dev can have one or more bion attached.
- * toread/towrite point to the first in a chain.
- * The bi_next chain must be in order.
- */
-static int add_stripe_bio(struct stripe_head *sh, struct bio *bi, int dd_idx, int forwrite)
-{
- struct bio **bip;
- raid6_conf_t *conf = sh->raid_conf;
- int firstwrite=0;
-
- PRINTK("adding bh b#%llu to stripe s#%llu\n",
- (unsigned long long)bi->bi_sector,
- (unsigned long long)sh->sector);
-
-
- spin_lock(&sh->lock);
- spin_lock_irq(&conf->device_lock);
- if (forwrite) {
- bip = &sh->dev[dd_idx].towrite;
- if (*bip == NULL && sh->dev[dd_idx].written == NULL)
- firstwrite = 1;
- } else
- bip = &sh->dev[dd_idx].toread;
- while (*bip && (*bip)->bi_sector < bi->bi_sector) {
- if ((*bip)->bi_sector + ((*bip)->bi_size >> 9) > bi->bi_sector)
- goto overlap;
- bip = &(*bip)->bi_next;
- }
- if (*bip && (*bip)->bi_sector < bi->bi_sector + ((bi->bi_size)>>9))
- goto overlap;
-
- BUG_ON(*bip && bi->bi_next && (*bip) != bi->bi_next);
- if (*bip)
- bi->bi_next = *bip;
- *bip = bi;
- bi->bi_phys_segments ++;
- spin_unlock_irq(&conf->device_lock);
- spin_unlock(&sh->lock);
-
- PRINTK("added bi b#%llu to stripe s#%llu, disk %d.\n",
- (unsigned long long)bi->bi_sector,
- (unsigned long long)sh->sector, dd_idx);
-
- if (conf->mddev->bitmap && firstwrite) {
- sh->bm_seq = conf->seq_write;
- bitmap_startwrite(conf->mddev->bitmap, sh->sector,
- STRIPE_SECTORS, 0);
- set_bit(STRIPE_BIT_DELAY, &sh->state);
- }
-
- if (forwrite) {
- /* check if page is covered */
- sector_t sector = sh->dev[dd_idx].sector;
- for (bi=sh->dev[dd_idx].towrite;
- sector < sh->dev[dd_idx].sector + STRIPE_SECTORS &&
- bi && bi->bi_sector <= sector;
- bi = r5_next_bio(bi, sh->dev[dd_idx].sector)) {
- if (bi->bi_sector + (bi->bi_size>>9) >= sector)
- sector = bi->bi_sector + (bi->bi_size>>9);
- }
- if (sector >= sh->dev[dd_idx].sector + STRIPE_SECTORS)
- set_bit(R5_OVERWRITE, &sh->dev[dd_idx].flags);
- }
- return 1;
-
- overlap:
- set_bit(R5_Overlap, &sh->dev[dd_idx].flags);
- spin_unlock_irq(&conf->device_lock);
- spin_unlock(&sh->lock);
- return 0;
-}
-
-
-static int page_is_zero(struct page *p)
-{
- char *a = page_address(p);
- return ((*(u32*)a) == 0 &&
- memcmp(a, a+4, STRIPE_SIZE-4)==0);
-}
-/*
- * handle_stripe - do things to a stripe.
- *
- * We lock the stripe and then examine the state of various bits
- * to see what needs to be done.
- * Possible results:
- * return some read request which now have data
- * return some write requests which are safely on disc
- * schedule a read on some buffers
- * schedule a write of some buffers
- * return confirmation of parity correctness
- *
- * Parity calculations are done inside the stripe lock
- * buffers are taken off read_list or write_list, and bh_cache buffers
- * get BH_Lock set before the stripe lock is released.
- *
- */
-
-static void handle_stripe(struct stripe_head *sh, struct page *tmp_page)
-{
- raid6_conf_t *conf = sh->raid_conf;
- int disks = conf->raid_disks;
- struct bio *return_bi= NULL;
- struct bio *bi;
- int i;
- int syncing;
- int locked=0, uptodate=0, to_read=0, to_write=0, failed=0, written=0;
- int non_overwrite = 0;
- int failed_num[2] = {0, 0};
- struct r5dev *dev, *pdev, *qdev;
- int pd_idx = sh->pd_idx;
- int qd_idx = raid6_next_disk(pd_idx, disks);
- int p_failed, q_failed;
-
- PRINTK("handling stripe %llu, state=%#lx cnt=%d, pd_idx=%d, qd_idx=%d\n",
- (unsigned long long)sh->sector, sh->state, atomic_read(&sh->count),
- pd_idx, qd_idx);
-
- spin_lock(&sh->lock);
- clear_bit(STRIPE_HANDLE, &sh->state);
- clear_bit(STRIPE_DELAYED, &sh->state);
-
- syncing = test_bit(STRIPE_SYNCING, &sh->state);
- /* Now to look around and see what can be done */
-
- rcu_read_lock();
- for (i=disks; i--; ) {
- mdk_rdev_t *rdev;
- dev = &sh->dev[i];
- clear_bit(R5_Insync, &dev->flags);
-
- PRINTK("check %d: state 0x%lx read %p write %p written %p\n",
- i, dev->flags, dev->toread, dev->towrite, dev->written);
- /* maybe we can reply to a read */
- if (test_bit(R5_UPTODATE, &dev->flags) && dev->toread) {
- struct bio *rbi, *rbi2;
- PRINTK("Return read for disc %d\n", i);
- spin_lock_irq(&conf->device_lock);
- rbi = dev->toread;
- dev->toread = NULL;
- if (test_and_clear_bit(R5_Overlap, &dev->flags))
- wake_up(&conf->wait_for_overlap);
- spin_unlock_irq(&conf->device_lock);
- while (rbi && rbi->bi_sector < dev->sector + STRIPE_SECTORS) {
- copy_data(0, rbi, dev->page, dev->sector);
- rbi2 = r5_next_bio(rbi, dev->sector);
- spin_lock_irq(&conf->device_lock);
- if (--rbi->bi_phys_segments == 0) {
- rbi->bi_next = return_bi;
- return_bi = rbi;
- }
- spin_unlock_irq(&conf->device_lock);
- rbi = rbi2;
- }
- }
-
- /* now count some things */
- if (test_bit(R5_LOCKED, &dev->flags)) locked++;
- if (test_bit(R5_UPTODATE, &dev->flags)) uptodate++;
-
-
- if (dev->toread) to_read++;
- if (dev->towrite) {
- to_write++;
- if (!test_bit(R5_OVERWRITE, &dev->flags))
- non_overwrite++;
- }
- if (dev->written) written++;
- rdev = rcu_dereference(conf->disks[i].rdev);
- if (!rdev || !test_bit(In_sync, &rdev->flags)) {
- /* The ReadError flag will just be confusing now */
- clear_bit(R5_ReadError, &dev->flags);
- clear_bit(R5_ReWrite, &dev->flags);
- }
- if (!rdev || !test_bit(In_sync, &rdev->flags)
- || test_bit(R5_ReadError, &dev->flags)) {
- if ( failed < 2 )
- failed_num[failed] = i;
- failed++;
- } else
- set_bit(R5_Insync, &dev->flags);
- }
- rcu_read_unlock();
- PRINTK("locked=%d uptodate=%d to_read=%d"
- " to_write=%d failed=%d failed_num=%d,%d\n",
- locked, uptodate, to_read, to_write, failed,
- failed_num[0], failed_num[1]);
- /* check if the array has lost >2 devices and, if so, some requests might
- * need to be failed
- */
- if (failed > 2 && to_read+to_write+written) {
- for (i=disks; i--; ) {
- int bitmap_end = 0;
-
- if (test_bit(R5_ReadError, &sh->dev[i].flags)) {
- mdk_rdev_t *rdev;
- rcu_read_lock();
- rdev = rcu_dereference(conf->disks[i].rdev);
- if (rdev && test_bit(In_sync, &rdev->flags))
- /* multiple read failures in one stripe */
- md_error(conf->mddev, rdev);
- rcu_read_unlock();
- }
-
- spin_lock_irq(&conf->device_lock);
- /* fail all writes first */
- bi = sh->dev[i].towrite;
- sh->dev[i].towrite = NULL;
- if (bi) { to_write--; bitmap_end = 1; }
-
- if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
- wake_up(&conf->wait_for_overlap);
-
- while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS){
- struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
- clear_bit(BIO_UPTODATE, &bi->bi_flags);
- if (--bi->bi_phys_segments == 0) {
- md_write_end(conf->mddev);
- bi->bi_next = return_bi;
- return_bi = bi;
- }
- bi = nextbi;
- }
- /* and fail all 'written' */
- bi = sh->dev[i].written;
- sh->dev[i].written = NULL;
- if (bi) bitmap_end = 1;
- while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS) {
- struct bio *bi2 = r5_next_bio(bi, sh->dev[i].sector);
- clear_bit(BIO_UPTODATE, &bi->bi_flags);
- if (--bi->bi_phys_segments == 0) {
- md_write_end(conf->mddev);
- bi->bi_next = return_bi;
- return_bi = bi;
- }
- bi = bi2;
- }
-
- /* fail any reads if this device is non-operational */
- if (!test_bit(R5_Insync, &sh->dev[i].flags) ||
- test_bit(R5_ReadError, &sh->dev[i].flags)) {
- bi = sh->dev[i].toread;
- sh->dev[i].toread = NULL;
- if (test_and_clear_bit(R5_Overlap, &sh->dev[i].flags))
- wake_up(&conf->wait_for_overlap);
- if (bi) to_read--;
- while (bi && bi->bi_sector < sh->dev[i].sector + STRIPE_SECTORS){
- struct bio *nextbi = r5_next_bio(bi, sh->dev[i].sector);
- clear_bit(BIO_UPTODATE, &bi->bi_flags);
- if (--bi->bi_phys_segments == 0) {
- bi->bi_next = return_bi;
- return_bi = bi;
- }
- bi = nextbi;
- }
- }
- spin_unlock_irq(&conf->device_lock);
- if (bitmap_end)
- bitmap_endwrite(conf->mddev->bitmap, sh->sector,
- STRIPE_SECTORS, 0, 0);
- }
- }
- if (failed > 2 && syncing) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,0);
- clear_bit(STRIPE_SYNCING, &sh->state);
- syncing = 0;
- }
-
- /*
- * might be able to return some write requests if the parity blocks
- * are safe, or on a failed drive
- */
- pdev = &sh->dev[pd_idx];
- p_failed = (failed >= 1 && failed_num[0] == pd_idx)
- || (failed >= 2 && failed_num[1] == pd_idx);
- qdev = &sh->dev[qd_idx];
- q_failed = (failed >= 1 && failed_num[0] == qd_idx)
- || (failed >= 2 && failed_num[1] == qd_idx);
-
- if ( written &&
- ( p_failed || ((test_bit(R5_Insync, &pdev->flags)
- && !test_bit(R5_LOCKED, &pdev->flags)
- && test_bit(R5_UPTODATE, &pdev->flags))) ) &&
- ( q_failed || ((test_bit(R5_Insync, &qdev->flags)
- && !test_bit(R5_LOCKED, &qdev->flags)
- && test_bit(R5_UPTODATE, &qdev->flags))) ) ) {
- /* any written block on an uptodate or failed drive can be
- * returned. Note that if we 'wrote' to a failed drive,
- * it will be UPTODATE, but never LOCKED, so we don't need
- * to test 'failed' directly.
- */
- for (i=disks; i--; )
- if (sh->dev[i].written) {
- dev = &sh->dev[i];
- if (!test_bit(R5_LOCKED, &dev->flags) &&
- test_bit(R5_UPTODATE, &dev->flags) ) {
- /* We can return any write requests */
- int bitmap_end = 0;
- struct bio *wbi, *wbi2;
- PRINTK("Return write for stripe %llu disc %d\n",
- (unsigned long long)sh->sector, i);
- spin_lock_irq(&conf->device_lock);
- wbi = dev->written;
- dev->written = NULL;
- while (wbi && wbi->bi_sector < dev->sector + STRIPE_SECTORS) {
- wbi2 = r5_next_bio(wbi, dev->sector);
- if (--wbi->bi_phys_segments == 0) {
- md_write_end(conf->mddev);
- wbi->bi_next = return_bi;
- return_bi = wbi;
- }
- wbi = wbi2;
- }
- if (dev->towrite == NULL)
- bitmap_end = 1;
- spin_unlock_irq(&conf->device_lock);
- if (bitmap_end)
- bitmap_endwrite(conf->mddev->bitmap, sh->sector,
- STRIPE_SECTORS,
- !test_bit(STRIPE_DEGRADED, &sh->state), 0);
- }
- }
- }
-
- /* Now we might consider reading some blocks, either to check/generate
- * parity, or to satisfy requests
- * or to load a block that is being partially written.
- */
- if (to_read || non_overwrite || (to_write && failed) || (syncing && (uptodate < disks))) {
- for (i=disks; i--;) {
- dev = &sh->dev[i];
- if (!test_bit(R5_LOCKED, &dev->flags) && !test_bit(R5_UPTODATE, &dev->flags) &&
- (dev->toread ||
- (dev->towrite && !test_bit(R5_OVERWRITE, &dev->flags)) ||
- syncing ||
- (failed >= 1 && (sh->dev[failed_num[0]].toread || to_write)) ||
- (failed >= 2 && (sh->dev[failed_num[1]].toread || to_write))
- )
- ) {
- /* we would like to get this block, possibly
- * by computing it, but we might not be able to
- */
- if (uptodate == disks-1) {
- PRINTK("Computing stripe %llu block %d\n",
- (unsigned long long)sh->sector, i);
- compute_block_1(sh, i, 0);
- uptodate++;
- } else if ( uptodate == disks-2 && failed >= 2 ) {
- /* Computing 2-failure is *very* expensive; only do it if failed >= 2 */
- int other;
- for (other=disks; other--;) {
- if ( other == i )
- continue;
- if ( !test_bit(R5_UPTODATE, &sh->dev[other].flags) )
- break;
- }
- BUG_ON(other < 0);
- PRINTK("Computing stripe %llu blocks %d,%d\n",
- (unsigned long long)sh->sector, i, other);
- compute_block_2(sh, i, other);
- uptodate += 2;
- } else if (test_bit(R5_Insync, &dev->flags)) {
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantread, &dev->flags);
-#if 0
- /* if I am just reading this block and we don't have
- a failed drive, or any pending writes then sidestep the cache */
- if (sh->bh_read[i] && !sh->bh_read[i]->b_reqnext &&
- ! syncing && !failed && !to_write) {
- sh->bh_cache[i]->b_page = sh->bh_read[i]->b_page;
- sh->bh_cache[i]->b_data = sh->bh_read[i]->b_data;
- }
-#endif
- locked++;
- PRINTK("Reading block %d (sync=%d)\n",
- i, syncing);
- }
- }
- }
- set_bit(STRIPE_HANDLE, &sh->state);
- }
-
- /* now to consider writing and what else, if anything should be read */
- if (to_write) {
- int rcw=0, must_compute=0;
- for (i=disks ; i--;) {
- dev = &sh->dev[i];
- /* Would I have to read this buffer for reconstruct_write */
- if (!test_bit(R5_OVERWRITE, &dev->flags)
- && i != pd_idx && i != qd_idx
- && (!test_bit(R5_LOCKED, &dev->flags)
-#if 0
- || sh->bh_page[i] != bh->b_page
-#endif
- ) &&
- !test_bit(R5_UPTODATE, &dev->flags)) {
- if (test_bit(R5_Insync, &dev->flags)) rcw++;
- else {
- PRINTK("raid6: must_compute: disk %d flags=%#lx\n", i, dev->flags);
- must_compute++;
- }
- }
- }
- PRINTK("for sector %llu, rcw=%d, must_compute=%d\n",
- (unsigned long long)sh->sector, rcw, must_compute);
- set_bit(STRIPE_HANDLE, &sh->state);
-
- if (rcw > 0)
- /* want reconstruct write, but need to get some data */
- for (i=disks; i--;) {
- dev = &sh->dev[i];
- if (!test_bit(R5_OVERWRITE, &dev->flags)
- && !(failed == 0 && (i == pd_idx || i == qd_idx))
- && !test_bit(R5_LOCKED, &dev->flags) && !test_bit(R5_UPTODATE, &dev->flags) &&
- test_bit(R5_Insync, &dev->flags)) {
- if (test_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
- {
- PRINTK("Read_old stripe %llu block %d for Reconstruct\n",
- (unsigned long long)sh->sector, i);
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantread, &dev->flags);
- locked++;
- } else {
- PRINTK("Request delayed stripe %llu block %d for Reconstruct\n",
- (unsigned long long)sh->sector, i);
- set_bit(STRIPE_DELAYED, &sh->state);
- set_bit(STRIPE_HANDLE, &sh->state);
- }
- }
- }
- /* now if nothing is locked, and if we have enough data, we can start a write request */
- if (locked == 0 && rcw == 0 &&
- !test_bit(STRIPE_BIT_DELAY, &sh->state)) {
- if ( must_compute > 0 ) {
- /* We have failed blocks and need to compute them */
- switch ( failed ) {
- case 0: BUG();
- case 1: compute_block_1(sh, failed_num[0], 0); break;
- case 2: compute_block_2(sh, failed_num[0], failed_num[1]); break;
- default: BUG(); /* This request should have been failed? */
- }
- }
-
- PRINTK("Computing parity for stripe %llu\n", (unsigned long long)sh->sector);
- compute_parity(sh, RECONSTRUCT_WRITE);
- /* now every locked buffer is ready to be written */
- for (i=disks; i--;)
- if (test_bit(R5_LOCKED, &sh->dev[i].flags)) {
- PRINTK("Writing stripe %llu block %d\n",
- (unsigned long long)sh->sector, i);
- locked++;
- set_bit(R5_Wantwrite, &sh->dev[i].flags);
- }
- /* after a RECONSTRUCT_WRITE, the stripe MUST be in-sync */
- set_bit(STRIPE_INSYNC, &sh->state);
-
- if (test_and_clear_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) {
- atomic_dec(&conf->preread_active_stripes);
- if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD)
- md_wakeup_thread(conf->mddev->thread);
- }
- }
- }
-
- /* maybe we need to check and possibly fix the parity for this stripe
- * Any reads will already have been scheduled, so we just see if enough data
- * is available
- */
- if (syncing && locked == 0 && !test_bit(STRIPE_INSYNC, &sh->state)) {
- int update_p = 0, update_q = 0;
- struct r5dev *dev;
-
- set_bit(STRIPE_HANDLE, &sh->state);
-
- BUG_ON(failed>2);
- BUG_ON(uptodate < disks);
- /* Want to check and possibly repair P and Q.
- * However there could be one 'failed' device, in which
- * case we can only check one of them, possibly using the
- * other to generate missing data
- */
-
- /* If !tmp_page, we cannot do the calculations,
- * but as we have set STRIPE_HANDLE, we will soon be called
- * by stripe_handle with a tmp_page - just wait until then.
- */
- if (tmp_page) {
- if (failed == q_failed) {
- /* The only possible failed device holds 'Q', so it makes
- * sense to check P (If anything else were failed, we would
- * have used P to recreate it).
- */
- compute_block_1(sh, pd_idx, 1);
- if (!page_is_zero(sh->dev[pd_idx].page)) {
- compute_block_1(sh,pd_idx,0);
- update_p = 1;
- }
- }
- if (!q_failed && failed < 2) {
- /* q is not failed, and we didn't use it to generate
- * anything, so it makes sense to check it
- */
- memcpy(page_address(tmp_page),
- page_address(sh->dev[qd_idx].page),
- STRIPE_SIZE);
- compute_parity(sh, UPDATE_PARITY);
- if (memcmp(page_address(tmp_page),
- page_address(sh->dev[qd_idx].page),
- STRIPE_SIZE)!= 0) {
- clear_bit(STRIPE_INSYNC, &sh->state);
- update_q = 1;
- }
- }
- if (update_p || update_q) {
- conf->mddev->resync_mismatches += STRIPE_SECTORS;
- if (test_bit(MD_RECOVERY_CHECK, &conf->mddev->recovery))
- /* don't try to repair!! */
- update_p = update_q = 0;
- }
-
- /* now write out any block on a failed drive,
- * or P or Q if they need it
- */
-
- if (failed == 2) {
- dev = &sh->dev[failed_num[1]];
- locked++;
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantwrite, &dev->flags);
- }
- if (failed >= 1) {
- dev = &sh->dev[failed_num[0]];
- locked++;
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantwrite, &dev->flags);
- }
-
- if (update_p) {
- dev = &sh->dev[pd_idx];
- locked ++;
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantwrite, &dev->flags);
- }
- if (update_q) {
- dev = &sh->dev[qd_idx];
- locked++;
- set_bit(R5_LOCKED, &dev->flags);
- set_bit(R5_Wantwrite, &dev->flags);
- }
- clear_bit(STRIPE_DEGRADED, &sh->state);
-
- set_bit(STRIPE_INSYNC, &sh->state);
- }
- }
-
- if (syncing && locked == 0 && test_bit(STRIPE_INSYNC, &sh->state)) {
- md_done_sync(conf->mddev, STRIPE_SECTORS,1);
- clear_bit(STRIPE_SYNCING, &sh->state);
- }
-
- /* If the failed drives are just a ReadError, then we might need
- * to progress the repair/check process
- */
- if (failed <= 2 && ! conf->mddev->ro)
- for (i=0; i<failed;i++) {
- dev = &sh->dev[failed_num[i]];
- if (test_bit(R5_ReadError, &dev->flags)
- && !test_bit(R5_LOCKED, &dev->flags)
- && test_bit(R5_UPTODATE, &dev->flags)
- ) {
- if (!test_bit(R5_ReWrite, &dev->flags)) {
- set_bit(R5_Wantwrite, &dev->flags);
- set_bit(R5_ReWrite, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- } else {
- /* let's read it back */
- set_bit(R5_Wantread, &dev->flags);
- set_bit(R5_LOCKED, &dev->flags);
- }
- }
- }
- spin_unlock(&sh->lock);
-
- while ((bi=return_bi)) {
- int bytes = bi->bi_size;
-
- return_bi = bi->bi_next;
- bi->bi_next = NULL;
- bi->bi_size = 0;
- bi->bi_end_io(bi, bytes, 0);
- }
- for (i=disks; i-- ;) {
- int rw;
- struct bio *bi;
- mdk_rdev_t *rdev;
- if (test_and_clear_bit(R5_Wantwrite, &sh->dev[i].flags))
- rw = 1;
- else if (test_and_clear_bit(R5_Wantread, &sh->dev[i].flags))
- rw = 0;
- else
- continue;
-
- bi = &sh->dev[i].req;
-
- bi->bi_rw = rw;
- if (rw)
- bi->bi_end_io = raid6_end_write_request;
- else
- bi->bi_end_io = raid6_end_read_request;
-
- rcu_read_lock();
- rdev = rcu_dereference(conf->disks[i].rdev);
- if (rdev && test_bit(Faulty, &rdev->flags))
- rdev = NULL;
- if (rdev)
- atomic_inc(&rdev->nr_pending);
- rcu_read_unlock();
-
- if (rdev) {
- if (syncing)
- md_sync_acct(rdev->bdev, STRIPE_SECTORS);
-
- bi->bi_bdev = rdev->bdev;
- PRINTK("for %llu schedule op %ld on disc %d\n",
- (unsigned long long)sh->sector, bi->bi_rw, i);
- atomic_inc(&sh->count);
- bi->bi_sector = sh->sector + rdev->data_offset;
- bi->bi_flags = 1 << BIO_UPTODATE;
- bi->bi_vcnt = 1;
- bi->bi_max_vecs = 1;
- bi->bi_idx = 0;
- bi->bi_io_vec = &sh->dev[i].vec;
- bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
- bi->bi_io_vec[0].bv_offset = 0;
- bi->bi_size = STRIPE_SIZE;
- bi->bi_next = NULL;
- if (rw == WRITE &&
- test_bit(R5_ReWrite, &sh->dev[i].flags))
- atomic_add(STRIPE_SECTORS, &rdev->corrected_errors);
- generic_make_request(bi);
- } else {
- if (rw == 1)
- set_bit(STRIPE_DEGRADED, &sh->state);
- PRINTK("skip op %ld on disc %d for sector %llu\n",
- bi->bi_rw, i, (unsigned long long)sh->sector);
- clear_bit(R5_LOCKED, &sh->dev[i].flags);
- set_bit(STRIPE_HANDLE, &sh->state);
- }
- }
-}
-
-static void raid6_activate_delayed(raid6_conf_t *conf)
-{
- if (atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD) {
- while (!list_empty(&conf->delayed_list)) {
- struct list_head *l = conf->delayed_list.next;
- struct stripe_head *sh;
- sh = list_entry(l, struct stripe_head, lru);
- list_del_init(l);
- clear_bit(STRIPE_DELAYED, &sh->state);
- if (!test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state))
- atomic_inc(&conf->preread_active_stripes);
- list_add_tail(&sh->lru, &conf->handle_list);
- }
- }
-}
-
-static void activate_bit_delay(raid6_conf_t *conf)
-{
- /* device_lock is held */
- struct list_head head;
- list_add(&head, &conf->bitmap_list);
- list_del_init(&conf->bitmap_list);
- while (!list_empty(&head)) {
- struct stripe_head *sh = list_entry(head.next, struct stripe_head, lru);
- list_del_init(&sh->lru);
- atomic_inc(&sh->count);
- __release_stripe(conf, sh);
- }
-}
-
-static void unplug_slaves(mddev_t *mddev)
-{
- raid6_conf_t *conf = mddev_to_conf(mddev);
- int i;
-
- rcu_read_lock();
- for (i=0; i<mddev->raid_disks; i++) {
- mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
- if (rdev && !test_bit(Faulty, &rdev->flags) && atomic_read(&rdev->nr_pending)) {
- request_queue_t *r_queue = bdev_get_queue(rdev->bdev);
-
- atomic_inc(&rdev->nr_pending);
- rcu_read_unlock();
-
- if (r_queue->unplug_fn)
- r_queue->unplug_fn(r_queue);
-
- rdev_dec_pending(rdev, mddev);
- rcu_read_lock();
- }
- }
- rcu_read_unlock();
-}
-
-static void raid6_unplug_device(request_queue_t *q)
-{
- mddev_t *mddev = q->queuedata;
- raid6_conf_t *conf = mddev_to_conf(mddev);
- unsigned long flags;
-
- spin_lock_irqsave(&conf->device_lock, flags);
-
- if (blk_remove_plug(q)) {
- conf->seq_flush++;
- raid6_activate_delayed(conf);
- }
- md_wakeup_thread(mddev->thread);
-
- spin_unlock_irqrestore(&conf->device_lock, flags);
-
- unplug_slaves(mddev);
-}
-
-static int raid6_issue_flush(request_queue_t *q, struct gendisk *disk,
- sector_t *error_sector)
-{
- mddev_t *mddev = q->queuedata;
- raid6_conf_t *conf = mddev_to_conf(mddev);
- int i, ret = 0;
-
- rcu_read_lock();
- for (i=0; i<mddev->raid_disks && ret == 0; i++) {
- mdk_rdev_t *rdev = rcu_dereference(conf->disks[i].rdev);
- if (rdev && !test_bit(Faulty, &rdev->flags)) {
- struct block_device *bdev = rdev->bdev;
- request_queue_t *r_queue = bdev_get_queue(bdev);
-
- if (!r_queue->issue_flush_fn)
- ret = -EOPNOTSUPP;
- else {
- atomic_inc(&rdev->nr_pending);
- rcu_read_unlock();
- ret = r_queue->issue_flush_fn(r_queue, bdev->bd_disk,
- error_sector);
- rdev_dec_pending(rdev, mddev);
- rcu_read_lock();
- }
- }
- }
- rcu_read_unlock();
- return ret;
-}
-
-static inline void raid6_plug_device(raid6_conf_t *conf)
-{
- spin_lock_irq(&conf->device_lock);
- blk_plug_device(conf->mddev->queue);
- spin_unlock_irq(&conf->device_lock);
-}
-
-static int make_request (request_queue_t *q, struct bio * bi)
-{
- mddev_t *mddev = q->queuedata;
- raid6_conf_t *conf = mddev_to_conf(mddev);
- const unsigned int raid_disks = conf->raid_disks;
- const unsigned int data_disks = raid_disks - 2;
- unsigned int dd_idx, pd_idx;
- sector_t new_sector;
- sector_t logical_sector, last_sector;
- struct stripe_head *sh;
- const int rw = bio_data_dir(bi);
-
- if (unlikely(bio_barrier(bi))) {
- bio_endio(bi, bi->bi_size, -EOPNOTSUPP);
- return 0;
- }
-
- md_write_start(mddev, bi);
-
- disk_stat_inc(mddev->gendisk, ios[rw]);
- disk_stat_add(mddev->gendisk, sectors[rw], bio_sectors(bi));
-
- logical_sector = bi->bi_sector & ~((sector_t)STRIPE_SECTORS-1);
- last_sector = bi->bi_sector + (bi->bi_size>>9);
-
- bi->bi_next = NULL;
- bi->bi_phys_segments = 1; /* over-loaded to count active stripes */
-
- for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) {
- DEFINE_WAIT(w);
-
- new_sector = raid6_compute_sector(logical_sector,
- raid_disks, data_disks, &dd_idx, &pd_idx, conf);
-
- PRINTK("raid6: make_request, sector %llu logical %llu\n",
- (unsigned long long)new_sector,
- (unsigned long long)logical_sector);
-
- retry:
- prepare_to_wait(&conf->wait_for_overlap, &w, TASK_UNINTERRUPTIBLE);
- sh = get_active_stripe(conf, new_sector, pd_idx, (bi->bi_rw&RWA_MASK));
- if (sh) {
- if (!add_stripe_bio(sh, bi, dd_idx, (bi->bi_rw&RW_MASK))) {
- /* Add failed due to overlap. Flush everything
- * and wait a while
- */
- raid6_unplug_device(mddev->queue);
- release_stripe(sh);
- schedule();
- goto retry;
- }
- finish_wait(&conf->wait_for_overlap, &w);
- raid6_plug_device(conf);
- handle_stripe(sh, NULL);
- release_stripe(sh);
- } else {
- /* cannot get stripe for read-ahead, just give-up */
- clear_bit(BIO_UPTODATE, &bi->bi_flags);
- finish_wait(&conf->wait_for_overlap, &w);
- break;
- }
-
- }
- spin_lock_irq(&conf->device_lock);
- if (--bi->bi_phys_segments == 0) {
- int bytes = bi->bi_size;
-
- if (rw == WRITE )
- md_write_end(mddev);
- bi->bi_size = 0;
- bi->bi_end_io(bi, bytes, 0);
- }
- spin_unlock_irq(&conf->device_lock);
- return 0;
-}
-
-/* FIXME go_faster isn't used */
-static sector_t sync_request(mddev_t *mddev, sector_t sector_nr, int *skipped, int go_faster)
-{
- raid6_conf_t *conf = (raid6_conf_t *) mddev->private;
- struct stripe_head *sh;
- int sectors_per_chunk = conf->chunk_size >> 9;
- sector_t x;
- unsigned long stripe;
- int chunk_offset;
- int dd_idx, pd_idx;
- sector_t first_sector;
- int raid_disks = conf->raid_disks;
- int data_disks = raid_disks - 2;
- sector_t max_sector = mddev->size << 1;
- int sync_blocks;
- int still_degraded = 0;
- int i;
-
- if (sector_nr >= max_sector) {
- /* just being told to finish up .. nothing much to do */
- unplug_slaves(mddev);
-
- if (mddev->curr_resync < max_sector) /* aborted */
- bitmap_end_sync(mddev->bitmap, mddev->curr_resync,
- &sync_blocks, 1);
- else /* completed sync */
- conf->fullsync = 0;
- bitmap_close_sync(mddev->bitmap);
-
- return 0;
- }
- /* if there are 2 or more failed drives and we are trying
- * to resync, then assert that we are finished, because there is
- * nothing we can do.
- */
- if (mddev->degraded >= 2 && test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
- sector_t rv = (mddev->size << 1) - sector_nr;
- *skipped = 1;
- return rv;
- }
- if (!bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, 1) &&
- !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery) &&
- !conf->fullsync && sync_blocks >= STRIPE_SECTORS) {
- /* we can skip this block, and probably more */
- sync_blocks /= STRIPE_SECTORS;
- *skipped = 1;
- return sync_blocks * STRIPE_SECTORS; /* keep things rounded to whole stripes */
- }
-
- x = sector_nr;
- chunk_offset = sector_div(x, sectors_per_chunk);
- stripe = x;
- BUG_ON(x != stripe);
-
- first_sector = raid6_compute_sector((sector_t)stripe*data_disks*sectors_per_chunk
- + chunk_offset, raid_disks, data_disks, &dd_idx, &pd_idx, conf);
- sh = get_active_stripe(conf, sector_nr, pd_idx, 1);
- if (sh == NULL) {
- sh = get_active_stripe(conf, sector_nr, pd_idx, 0);
- /* make sure we don't swamp the stripe cache if someone else
- * is trying to get access
- */
- schedule_timeout_uninterruptible(1);
- }
- /* Need to check if array will still be degraded after recovery/resync
- * We don't need to check the 'failed' flag as when that gets set,
- * recovery aborts.
- */
- for (i=0; i<mddev->raid_disks; i++)
- if (conf->disks[i].rdev == NULL)
- still_degraded = 1;
-
- bitmap_start_sync(mddev->bitmap, sector_nr, &sync_blocks, still_degraded);
-
- spin_lock(&sh->lock);
- set_bit(STRIPE_SYNCING, &sh->state);
- clear_bit(STRIPE_INSYNC, &sh->state);
- spin_unlock(&sh->lock);
-
- handle_stripe(sh, NULL);
- release_stripe(sh);
-
- return STRIPE_SECTORS;
-}
-
-/*
- * This is our raid6 kernel thread.
- *
- * We scan the hash table for stripes which can be handled now.
- * During the scan, completed stripes are saved for us by the interrupt
- * handler, so that they will not have to wait for our next wakeup.
- */
-static void raid6d (mddev_t *mddev)
-{
- struct stripe_head *sh;
- raid6_conf_t *conf = mddev_to_conf(mddev);
- int handled;
-
- PRINTK("+++ raid6d active\n");
-
- md_check_recovery(mddev);
-
- handled = 0;
- spin_lock_irq(&conf->device_lock);
- while (1) {
- struct list_head *first;
-
- if (conf->seq_flush - conf->seq_write > 0) {
- int seq = conf->seq_flush;
- spin_unlock_irq(&conf->device_lock);
- bitmap_unplug(mddev->bitmap);
- spin_lock_irq(&conf->device_lock);
- conf->seq_write = seq;
- activate_bit_delay(conf);
- }
-
- if (list_empty(&conf->handle_list) &&
- atomic_read(&conf->preread_active_stripes) < IO_THRESHOLD &&
- !blk_queue_plugged(mddev->queue) &&
- !list_empty(&conf->delayed_list))
- raid6_activate_delayed(conf);
-
- if (list_empty(&conf->handle_list))
- break;
-
- first = conf->handle_list.next;
- sh = list_entry(first, struct stripe_head, lru);
-
- list_del_init(first);
- atomic_inc(&sh->count);
- BUG_ON(atomic_read(&sh->count)!= 1);
- spin_unlock_irq(&conf->device_lock);
-
- handled++;
- handle_stripe(sh, conf->spare_page);
- release_stripe(sh);
-
- spin_lock_irq(&conf->device_lock);
- }
- PRINTK("%d stripes handled\n", handled);
-
- spin_unlock_irq(&conf->device_lock);
-
- unplug_slaves(mddev);
-
- PRINTK("--- raid6d inactive\n");
-}
-
-static ssize_t
-raid6_show_stripe_cache_size(mddev_t *mddev, char *page)
-{
- raid6_conf_t *conf = mddev_to_conf(mddev);
- if (conf)
- return sprintf(page, "%d\n", conf->max_nr_stripes);
- else
- return 0;
-}
-
-static ssize_t
-raid6_store_stripe_cache_size(mddev_t *mddev, const char *page, size_t len)
-{
- raid6_conf_t *conf = mddev_to_conf(mddev);
- char *end;
- int new;
- if (len >= PAGE_SIZE)
- return -EINVAL;
- if (!conf)
- return -ENODEV;
-
- new = simple_strtoul(page, &end, 10);
- if (!*page || (*end && *end != '\n') )
- return -EINVAL;
- if (new <= 16 || new > 32768)
- return -EINVAL;
- while (new < conf->max_nr_stripes) {
- if (drop_one_stripe(conf))
- conf->max_nr_stripes--;
- else
- break;
- }
- while (new > conf->max_nr_stripes) {
- if (grow_one_stripe(conf))
- conf->max_nr_stripes++;
- else break;
- }
- return len;
-}
-
-static struct md_sysfs_entry
-raid6_stripecache_size = __ATTR(stripe_cache_size, S_IRUGO | S_IWUSR,
- raid6_show_stripe_cache_size,
- raid6_store_stripe_cache_size);
-
-static ssize_t
-stripe_cache_active_show(mddev_t *mddev, char *page)
-{
- raid6_conf_t *conf = mddev_to_conf(mddev);
- if (conf)
- return sprintf(page, "%d\n", atomic_read(&conf->active_stripes));
- else
- return 0;
-}
-
-static struct md_sysfs_entry
-raid6_stripecache_active = __ATTR_RO(stripe_cache_active);
-
-static struct attribute *raid6_attrs[] = {
- &raid6_stripecache_size.attr,
- &raid6_stripecache_active.attr,
- NULL,
-};
-static struct attribute_group raid6_attrs_group = {
- .name = NULL,
- .attrs = raid6_attrs,
-};
-
-static int run(mddev_t *mddev)
-{
- raid6_conf_t *conf;
- int raid_disk, memory;
- mdk_rdev_t *rdev;
- struct disk_info *disk;
- struct list_head *tmp;
-
- if (mddev->level != 6) {
- PRINTK("raid6: %s: raid level not set to 6 (%d)\n", mdname(mddev), mddev->level);
- return -EIO;
- }
-
- mddev->private = kzalloc(sizeof (raid6_conf_t), GFP_KERNEL);
- if ((conf = mddev->private) == NULL)
- goto abort;
- conf->disks = kzalloc(mddev->raid_disks * sizeof(struct disk_info),
- GFP_KERNEL);
- if (!conf->disks)
- goto abort;
-
- conf->mddev = mddev;
-
- if ((conf->stripe_hashtbl = kzalloc(PAGE_SIZE, GFP_KERNEL)) == NULL)
- goto abort;
-
- conf->spare_page = alloc_page(GFP_KERNEL);
- if (!conf->spare_page)
- goto abort;
-
- spin_lock_init(&conf->device_lock);
- init_waitqueue_head(&conf->wait_for_stripe);
- init_waitqueue_head(&conf->wait_for_overlap);
- INIT_LIST_HEAD(&conf->handle_list);
- INIT_LIST_HEAD(&conf->delayed_list);
- INIT_LIST_HEAD(&conf->bitmap_list);
- INIT_LIST_HEAD(&conf->inactive_list);
- atomic_set(&conf->active_stripes, 0);
- atomic_set(&conf->preread_active_stripes, 0);
-
- PRINTK("raid6: run(%s) called.\n", mdname(mddev));
-
- ITERATE_RDEV(mddev,rdev,tmp) {
- raid_disk = rdev->raid_disk;
- if (raid_disk >= mddev->raid_disks
- || raid_disk < 0)
- continue;
- disk = conf->disks + raid_disk;
-
- disk->rdev = rdev;
-
- if (test_bit(In_sync, &rdev->flags)) {
- char b[BDEVNAME_SIZE];
- printk(KERN_INFO "raid6: device %s operational as raid"
- " disk %d\n", bdevname(rdev->bdev,b),
- raid_disk);
- conf->working_disks++;
- }
- }
-
- conf->raid_disks = mddev->raid_disks;
-
- /*
- * 0 for a fully functional array, 1 or 2 for a degraded array.
- */
- mddev->degraded = conf->failed_disks = conf->raid_disks - conf->working_disks;
- conf->mddev = mddev;
- conf->chunk_size = mddev->chunk_size;
- conf->level = mddev->level;
- conf->algorithm = mddev->layout;
- conf->max_nr_stripes = NR_STRIPES;
-
- /* device size must be a multiple of chunk size */
- mddev->size &= ~(mddev->chunk_size/1024 -1);
- mddev->resync_max_sectors = mddev->size << 1;
-
- if (conf->raid_disks < 4) {
- printk(KERN_ERR "raid6: not enough configured devices for %s (%d, minimum 4)\n",
- mdname(mddev), conf->raid_disks);
- goto abort;
- }
- if (!conf->chunk_size || conf->chunk_size % 4) {
- printk(KERN_ERR "raid6: invalid chunk size %d for %s\n",
- conf->chunk_size, mdname(mddev));
- goto abort;
- }
- if (conf->algorithm > ALGORITHM_RIGHT_SYMMETRIC) {
- printk(KERN_ERR
- "raid6: unsupported parity algorithm %d for %s\n",
- conf->algorithm, mdname(mddev));
- goto abort;
- }
- if (mddev->degraded > 2) {
- printk(KERN_ERR "raid6: not enough operational devices for %s"
- " (%d/%d failed)\n",
- mdname(mddev), conf->failed_disks, conf->raid_disks);
- goto abort;
- }
-
- if (mddev->degraded > 0 &&
- mddev->recovery_cp != MaxSector) {
- if (mddev->ok_start_degraded)
- printk(KERN_WARNING "raid6: starting dirty degraded array:%s"
- "- data corruption possible.\n",
- mdname(mddev));
- else {
- printk(KERN_ERR "raid6: cannot start dirty degraded array"
- " for %s\n", mdname(mddev));
- goto abort;
- }
- }
-
- {
- mddev->thread = md_register_thread(raid6d, mddev, "%s_raid6");
- if (!mddev->thread) {
- printk(KERN_ERR
- "raid6: couldn't allocate thread for %s\n",
- mdname(mddev));
- goto abort;
- }
- }
-
- memory = conf->max_nr_stripes * (sizeof(struct stripe_head) +
- conf->raid_disks * ((sizeof(struct bio) + PAGE_SIZE))) / 1024;
- if (grow_stripes(conf, conf->max_nr_stripes)) {
- printk(KERN_ERR
- "raid6: couldn't allocate %dkB for buffers\n", memory);
- shrink_stripes(conf);
- md_unregister_thread(mddev->thread);
- goto abort;
- } else
- printk(KERN_INFO "raid6: allocated %dkB for %s\n",
- memory, mdname(mddev));
-
- if (mddev->degraded == 0)
- printk(KERN_INFO "raid6: raid level %d set %s active with %d out of %d"
- " devices, algorithm %d\n", conf->level, mdname(mddev),
- mddev->raid_disks-mddev->degraded, mddev->raid_disks,
- conf->algorithm);
- else
- printk(KERN_ALERT "raid6: raid level %d set %s active with %d"
- " out of %d devices, algorithm %d\n", conf->level,
- mdname(mddev), mddev->raid_disks - mddev->degraded,
- mddev->raid_disks, conf->algorithm);
-
- print_raid6_conf(conf);
-
- /* read-ahead size must cover two whole stripes, which is
- * 2 * (n-2) * chunksize where 'n' is the number of raid devices
- */
- {
- int stripe = (mddev->raid_disks-2) * mddev->chunk_size
- / PAGE_SIZE;
- if (mddev->queue->backing_dev_info.ra_pages < 2 * stripe)
- mddev->queue->backing_dev_info.ra_pages = 2 * stripe;
- }
-
- /* Ok, everything is just fine now */
- sysfs_create_group(&mddev->kobj, &raid6_attrs_group);
-
- mddev->array_size = mddev->size * (mddev->raid_disks - 2);
-
- mddev->queue->unplug_fn = raid6_unplug_device;
- mddev->queue->issue_flush_fn = raid6_issue_flush;
- return 0;
-abort:
- if (conf) {
- print_raid6_conf(conf);
- safe_put_page(conf->spare_page);
- kfree(conf->stripe_hashtbl);
- kfree(conf->disks);
- kfree(conf);
- }
- mddev->private = NULL;
- printk(KERN_ALERT "raid6: failed to run raid set %s\n", mdname(mddev));
- return -EIO;
-}
-
-
-
-static int stop (mddev_t *mddev)
-{
- raid6_conf_t *conf = (raid6_conf_t *) mddev->private;
-
- md_unregister_thread(mddev->thread);
- mddev->thread = NULL;
- shrink_stripes(conf);
- kfree(conf->stripe_hashtbl);
- blk_sync_queue(mddev->queue); /* the unplug fn references 'conf'*/
- sysfs_remove_group(&mddev->kobj, &raid6_attrs_group);
- kfree(conf);
- mddev->private = NULL;
- return 0;
-}
-
-#if RAID6_DUMPSTATE
-static void print_sh (struct seq_file *seq, struct stripe_head *sh)
-{
- int i;
-
- seq_printf(seq, "sh %llu, pd_idx %d, state %ld.\n",
- (unsigned long long)sh->sector, sh->pd_idx, sh->state);
- seq_printf(seq, "sh %llu, count %d.\n",
- (unsigned long long)sh->sector, atomic_read(&sh->count));
- seq_printf(seq, "sh %llu, ", (unsigned long long)sh->sector);
- for (i = 0; i < sh->raid_conf->raid_disks; i++) {
- seq_printf(seq, "(cache%d: %p %ld) ",
- i, sh->dev[i].page, sh->dev[i].flags);
- }
- seq_printf(seq, "\n");
-}
-
-static void printall (struct seq_file *seq, raid6_conf_t *conf)
-{
- struct stripe_head *sh;
- struct hlist_node *hn;
- int i;
-
- spin_lock_irq(&conf->device_lock);
- for (i = 0; i < NR_HASH; i++) {
- sh = conf->stripe_hashtbl[i];
- hlist_for_each_entry(sh, hn, &conf->stripe_hashtbl[i], hash) {
- if (sh->raid_conf != conf)
- continue;
- print_sh(seq, sh);
- }
- }
- spin_unlock_irq(&conf->device_lock);
-}
-#endif
-
-static void status (struct seq_file *seq, mddev_t *mddev)
-{
- raid6_conf_t *conf = (raid6_conf_t *) mddev->private;
- int i;
-
- seq_printf (seq, " level %d, %dk chunk, algorithm %d", mddev->level, mddev->chunk_size >> 10, mddev->layout);
- seq_printf (seq, " [%d/%d] [", conf->raid_disks, conf->working_disks);
- for (i = 0; i < conf->raid_disks; i++)
- seq_printf (seq, "%s",
- conf->disks[i].rdev &&
- test_bit(In_sync, &conf->disks[i].rdev->flags) ? "U" : "_");
- seq_printf (seq, "]");
-#if RAID6_DUMPSTATE
- seq_printf (seq, "\n");
- printall(seq, conf);
-#endif
-}
-
-static void print_raid6_conf (raid6_conf_t *conf)
-{
- int i;
- struct disk_info *tmp;
-
- printk("RAID6 conf printout:\n");
- if (!conf) {
- printk("(conf==NULL)\n");
- return;
- }
- printk(" --- rd:%d wd:%d fd:%d\n", conf->raid_disks,
- conf->working_disks, conf->failed_disks);
-
- for (i = 0; i < conf->raid_disks; i++) {
- char b[BDEVNAME_SIZE];
- tmp = conf->disks + i;
- if (tmp->rdev)
- printk(" disk %d, o:%d, dev:%s\n",
- i, !test_bit(Faulty, &tmp->rdev->flags),
- bdevname(tmp->rdev->bdev,b));
- }
-}
-
-static int raid6_spare_active(mddev_t *mddev)
-{
- int i;
- raid6_conf_t *conf = mddev->private;
- struct disk_info *tmp;
-
- for (i = 0; i < conf->raid_disks; i++) {
- tmp = conf->disks + i;
- if (tmp->rdev
- && !test_bit(Faulty, &tmp->rdev->flags)
- && !test_bit(In_sync, &tmp->rdev->flags)) {
- mddev->degraded--;
- conf->failed_disks--;
- conf->working_disks++;
- set_bit(In_sync, &tmp->rdev->flags);
- }
- }
- print_raid6_conf(conf);
- return 0;
-}
-
-static int raid6_remove_disk(mddev_t *mddev, int number)
-{
- raid6_conf_t *conf = mddev->private;
- int err = 0;
- mdk_rdev_t *rdev;
- struct disk_info *p = conf->disks + number;
-
- print_raid6_conf(conf);
- rdev = p->rdev;
- if (rdev) {
- if (test_bit(In_sync, &rdev->flags) ||
- atomic_read(&rdev->nr_pending)) {
- err = -EBUSY;
- goto abort;
- }
- p->rdev = NULL;
- synchronize_rcu();
- if (atomic_read(&rdev->nr_pending)) {
- /* lost the race, try later */
- err = -EBUSY;
- p->rdev = rdev;
- }
- }
-
-abort:
-
- print_raid6_conf(conf);
- return err;
-}
-
-static int raid6_add_disk(mddev_t *mddev, mdk_rdev_t *rdev)
-{
- raid6_conf_t *conf = mddev->private;
- int found = 0;
- int disk;
- struct disk_info *p;
-
- if (mddev->degraded > 2)
- /* no point adding a device */
- return 0;
- /*
- * find the disk ... but prefer rdev->saved_raid_disk
- * if possible.
- */
- if (rdev->saved_raid_disk >= 0 &&
- conf->disks[rdev->saved_raid_disk].rdev == NULL)
- disk = rdev->saved_raid_disk;
- else
- disk = 0;
- for ( ; disk < mddev->raid_disks; disk++)
- if ((p=conf->disks + disk)->rdev == NULL) {
- clear_bit(In_sync, &rdev->flags);
- rdev->raid_disk = disk;
- found = 1;
- if (rdev->saved_raid_disk != disk)
- conf->fullsync = 1;
- rcu_assign_pointer(p->rdev, rdev);
- break;
- }
- print_raid6_conf(conf);
- return found;
-}
-
-static int raid6_resize(mddev_t *mddev, sector_t sectors)
-{
- /* no resync is happening, and there is enough space
- * on all devices, so we can resize.
- * We need to make sure resync covers any new space.
- * If the array is shrinking we should possibly wait until
- * any io in the removed space completes, but it hardly seems
- * worth it.
- */
- sectors &= ~((sector_t)mddev->chunk_size/512 - 1);
- mddev->array_size = (sectors * (mddev->raid_disks-2))>>1;
- set_capacity(mddev->gendisk, mddev->array_size << 1);
- mddev->changed = 1;
- if (sectors/2 > mddev->size && mddev->recovery_cp == MaxSector) {
- mddev->recovery_cp = mddev->size << 1;
- set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
- }
- mddev->size = sectors /2;
- mddev->resync_max_sectors = sectors;
- return 0;
-}
-
-static void raid6_quiesce(mddev_t *mddev, int state)
-{
- raid6_conf_t *conf = mddev_to_conf(mddev);
-
- switch(state) {
- case 1: /* stop all writes */
- spin_lock_irq(&conf->device_lock);
- conf->quiesce = 1;
- wait_event_lock_irq(conf->wait_for_stripe,
- atomic_read(&conf->active_stripes) == 0,
- conf->device_lock, /* nothing */);
- spin_unlock_irq(&conf->device_lock);
- break;
-
- case 0: /* re-enable writes */
- spin_lock_irq(&conf->device_lock);
- conf->quiesce = 0;
- wake_up(&conf->wait_for_stripe);
- spin_unlock_irq(&conf->device_lock);
- break;
- }
-}
-
-static struct mdk_personality raid6_personality =
-{
- .name = "raid6",
- .level = 6,
- .owner = THIS_MODULE,
- .make_request = make_request,
- .run = run,
- .stop = stop,
- .status = status,
- .error_handler = error,
- .hot_add_disk = raid6_add_disk,
- .hot_remove_disk= raid6_remove_disk,
- .spare_active = raid6_spare_active,
- .sync_request = sync_request,
- .resize = raid6_resize,
- .quiesce = raid6_quiesce,
-};
-
-static int __init raid6_init(void)
-{
- int e;
-
- e = raid6_select_algo();
- if ( e )
- return e;
-
- return register_md_personality(&raid6_personality);
-}
-
-static void raid6_exit (void)
-{
- unregister_md_personality(&raid6_personality);
-}
-
-module_init(raid6_init);
-module_exit(raid6_exit);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("md-personality-8"); /* RAID6 */
-MODULE_ALIAS("md-raid6");
-MODULE_ALIAS("md-level-6");
diff --git a/drivers/media/Kconfig b/drivers/media/Kconfig
index 583d151b748..ef52e6da01e 100644
--- a/drivers/media/Kconfig
+++ b/drivers/media/Kconfig
@@ -82,9 +82,6 @@ config VIDEO_IR
config VIDEO_TVEEPROM
tristate
-config VIDEO_CX2341X
- tristate
-
config USB_DABUSB
tristate "DABUSB driver"
depends on USB
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 3152a54a253..5e8bb41a088 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -556,22 +556,23 @@ static int dvb_frontend_thread(void *data)
}
/* do an iteration of the tuning loop */
- if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) {
- /* have we been asked to retune? */
- params = NULL;
- if (fepriv->state & FESTATE_RETUNE) {
- params = &fepriv->parameters;
- fepriv->state = FESTATE_TUNED;
- }
+ if (fe->ops.get_frontend_algo) {
+ if (fe->ops.get_frontend_algo(fe) == FE_ALGO_HW) {
+ /* have we been asked to retune? */
+ params = NULL;
+ if (fepriv->state & FESTATE_RETUNE) {
+ params = &fepriv->parameters;
+ fepriv->state = FESTATE_TUNED;
+ }
- fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
- if (s != fepriv->status) {
- dvb_frontend_add_event(fe, s);
- fepriv->status = s;
+ fe->ops.tune(fe, params, fepriv->tune_mode_flags, &fepriv->delay, &s);
+ if (s != fepriv->status) {
+ dvb_frontend_add_event(fe, s);
+ fepriv->status = s;
+ }
}
- } else {
+ } else
dvb_frontend_swzigzag(fe);
- }
}
if (dvb_shutdown_timeout) {
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index 8832f80c05f..7a5c99c200e 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -152,13 +152,9 @@ static void init_av7110_av(struct av7110 *av7110)
/* remaining inits according to card and frontend type */
av7110->analog_tuner_flags = 0;
av7110->current_input = 0;
- if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a) {
- printk("dvb-ttpci: MSP3415 audio DAC @ card %d\n",
- av7110->dvb_adapter.num);
- av7110->adac_type = DVB_ADAC_MSP34x5;
+ if (dev->pci->subsystem_vendor == 0x13c2 && dev->pci->subsystem_device == 0x000a)
av7110_fw_cmd(av7110, COMTYPE_AUDIODAC, ADSwitch, 1, 0); // SPDIF on
- }
- else if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) {
+ if (i2c_writereg(av7110, 0x20, 0x00, 0x00) == 1) {
printk ("dvb-ttpci: Crystal audio DAC @ card %d detected\n",
av7110->dvb_adapter.num);
av7110->adac_type = DVB_ADAC_CRYSTAL;
diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c
index 2eff09f638d..0f3a044aeb1 100644
--- a/drivers/media/dvb/ttpci/av7110_av.c
+++ b/drivers/media/dvb/ttpci/av7110_av.c
@@ -318,7 +318,17 @@ int av7110_set_volume(struct av7110 *av7110, int volleft, int volright)
msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
msp_writereg(av7110, MSP_WR_DSP, 0x0006, val); /* headphonesr */
return 0;
+
+ case DVB_ADAC_MSP34x5:
+ vol = (volleft > volright) ? volleft : volright;
+ val = (vol * 0x73 / 255) << 8;
+ if (vol > 0)
+ balance = ((volright - volleft) * 127) / vol;
+ msp_writereg(av7110, MSP_WR_DSP, 0x0001, balance << 8);
+ msp_writereg(av7110, MSP_WR_DSP, 0x0000, val); /* loudspeaker */
+ return 0;
}
+
return 0;
}
@@ -1267,23 +1277,32 @@ static int dvb_audio_ioctl(struct inode *inode, struct file *file,
switch(av7110->audiostate.channel_select) {
case AUDIO_STEREO:
ret = audcom(av7110, AUDIO_CMD_STEREO);
- if (!ret)
+ if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x49);
+ else if (av7110->adac_type == DVB_ADAC_MSP34x5)
+ msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0220);
+ }
break;
case AUDIO_MONO_LEFT:
ret = audcom(av7110, AUDIO_CMD_MONO_L);
- if (!ret)
+ if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x4a);
+ else if (av7110->adac_type == DVB_ADAC_MSP34x5)
+ msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0200);
+ }
break;
case AUDIO_MONO_RIGHT:
ret = audcom(av7110, AUDIO_CMD_MONO_R);
- if (!ret)
+ if (!ret) {
if (av7110->adac_type == DVB_ADAC_CRYSTAL)
i2c_writereg(av7110, 0x20, 0x02, 0x45);
+ else if (av7110->adac_type == DVB_ADAC_MSP34x5)
+ msp_writereg(av7110, MSP_WR_DSP, 0x0008, 0x0210);
+ }
break;
default:
diff --git a/drivers/media/dvb/ttpci/av7110_v4l.c b/drivers/media/dvb/ttpci/av7110_v4l.c
index 603a22e4bfe..64055461559 100644
--- a/drivers/media/dvb/ttpci/av7110_v4l.c
+++ b/drivers/media/dvb/ttpci/av7110_v4l.c
@@ -42,7 +42,18 @@
int msp_writereg(struct av7110 *av7110, u8 dev, u16 reg, u16 val)
{
u8 msg[5] = { dev, reg >> 8, reg & 0xff, val >> 8 , val & 0xff };
- struct i2c_msg msgs = { .flags = 0, .addr = 0x40, .len = 5, .buf = msg };
+ struct i2c_msg msgs = { .flags = 0, .len = 5, .buf = msg };
+
+ switch (av7110->adac_type) {
+ case DVB_ADAC_MSP34x0:
+ msgs.addr = 0x40;
+ break;
+ case DVB_ADAC_MSP34x5:
+ msgs.addr = 0x42;
+ break;
+ default:
+ return 0;
+ }
if (i2c_transfer(&av7110->i2c_adap, &msgs, 1) != 1) {
dprintk(1, "dvb-ttpci: failed @ card %d, %u = %u\n",
@@ -57,10 +68,23 @@ static int msp_readreg(struct av7110 *av7110, u8 dev, u16 reg, u16 *val)
u8 msg1[3] = { dev, reg >> 8, reg & 0xff };
u8 msg2[2];
struct i2c_msg msgs[2] = {
- { .flags = 0, .addr = 0x40, .len = 3, .buf = msg1 },
- { .flags = I2C_M_RD, .addr = 0x40, .len = 2, .buf = msg2 }
+ { .flags = 0 , .len = 3, .buf = msg1 },
+ { .flags = I2C_M_RD, .len = 2, .buf = msg2 }
};
+ switch (av7110->adac_type) {
+ case DVB_ADAC_MSP34x0:
+ msgs[0].addr = 0x40;
+ msgs[1].addr = 0x40;
+ break;
+ case DVB_ADAC_MSP34x5:
+ msgs[0].addr = 0x42;
+ msgs[1].addr = 0x42;
+ break;
+ default:
+ return 0;
+ }
+
if (i2c_transfer(&av7110->i2c_adap, &msgs[0], 2) != 2) {
dprintk(1, "dvb-ttpci: failed @ card %d, %u\n",
av7110->dvb_adapter.num, reg);
@@ -678,17 +702,23 @@ int av7110_init_analog_module(struct av7110 *av7110)
{
u16 version1, version2;
- if (i2c_writereg(av7110, 0x80, 0x0, 0x80) != 1
- || i2c_writereg(av7110, 0x80, 0x0, 0) != 1)
+ if (i2c_writereg(av7110, 0x80, 0x0, 0x80) == 1 &&
+ i2c_writereg(av7110, 0x80, 0x0, 0) == 1) {
+ printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n",
+ av7110->dvb_adapter.num);
+ av7110->adac_type = DVB_ADAC_MSP34x0;
+ } else if (i2c_writereg(av7110, 0x84, 0x0, 0x80) == 1 &&
+ i2c_writereg(av7110, 0x84, 0x0, 0) == 1) {
+ printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3415\n",
+ av7110->dvb_adapter.num);
+ av7110->adac_type = DVB_ADAC_MSP34x5;
+ } else
return -ENODEV;
- printk("dvb-ttpci: DVB-C analog module @ card %d detected, initializing MSP3400\n",
- av7110->dvb_adapter.num);
- av7110->adac_type = DVB_ADAC_MSP34x0;
msleep(100); // the probing above resets the msp...
msp_readreg(av7110, MSP_RD_DSP, 0x001e, &version1);
msp_readreg(av7110, MSP_RD_DSP, 0x001f, &version2);
- dprintk(1, "dvb-ttpci: @ card %d MSP3400 version 0x%04x 0x%04x\n",
+ dprintk(1, "dvb-ttpci: @ card %d MSP34xx version 0x%04x 0x%04x\n",
av7110->dvb_adapter.num, version1, version2);
msp_writereg(av7110, MSP_WR_DSP, 0x0013, 0x0c00);
msp_writereg(av7110, MSP_WR_DSP, 0x0000, 0x7f00); // loudspeaker + headphone
@@ -697,7 +727,7 @@ int av7110_init_analog_module(struct av7110 *av7110)
msp_writereg(av7110, MSP_WR_DSP, 0x0004, 0x7f00); // loudspeaker volume
msp_writereg(av7110, MSP_WR_DSP, 0x000a, 0x0220); // SCART 1 source
msp_writereg(av7110, MSP_WR_DSP, 0x0007, 0x7f00); // SCART 1 volume
- msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x4800); // prescale SCART
+ msp_writereg(av7110, MSP_WR_DSP, 0x000d, 0x1900); // prescale SCART
if (i2c_writereg(av7110, 0x48, 0x01, 0x00)!=1) {
INFO(("saa7113 not accessible.\n"));
diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig
index 824a63c9262..e4290491fa9 100644
--- a/drivers/media/video/Kconfig
+++ b/drivers/media/video/Kconfig
@@ -381,6 +381,18 @@ config VIDEO_WM8739
To compile this driver as a module, choose M here: the
module will be called wm8739.
+config VIDEO_CX2341X
+ tristate "Conexant CX2341x MPEG encoders"
+ depends on VIDEO_V4L2 && EXPERIMENTAL
+ ---help---
+ Support for the Conexant CX23416 MPEG encoders
+ and CX23415 MPEG encoder/decoders.
+
+ This module currently supports the encoding functions only.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cx2341x.
+
source "drivers/media/video/cx25840/Kconfig"
config VIDEO_SAA711X
diff --git a/drivers/media/video/cx2341x.c b/drivers/media/video/cx2341x.c
index 554813e6f65..01b22eab572 100644
--- a/drivers/media/video/cx2341x.c
+++ b/drivers/media/video/cx2341x.c
@@ -43,6 +43,7 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
const u32 cx2341x_mpeg_ctrls[] = {
V4L2_CID_MPEG_CLASS,
V4L2_CID_MPEG_STREAM_TYPE,
+ V4L2_CID_MPEG_STREAM_VBI_FMT,
V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ,
V4L2_CID_MPEG_AUDIO_ENCODING,
V4L2_CID_MPEG_AUDIO_L2_BITRATE,
@@ -135,6 +136,9 @@ static int cx2341x_get_ctrl(struct cx2341x_mpeg_params *params,
case V4L2_CID_MPEG_STREAM_TYPE:
ctrl->value = params->stream_type;
break;
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
+ ctrl->value = params->stream_vbi_fmt;
+ break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
ctrl->value = params->video_spatial_filter_mode;
break;
@@ -257,6 +261,9 @@ static int cx2341x_set_ctrl(struct cx2341x_mpeg_params *params,
params->video_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_CBR;
}
break;
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
+ params->stream_vbi_fmt = ctrl->value;
+ break;
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
params->video_spatial_filter_mode = ctrl->value;
break;
@@ -418,6 +425,14 @@ int cx2341x_ctrl_query(struct cx2341x_mpeg_params *params, struct v4l2_queryctrl
qctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return err;
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
+ if (params->capabilities & CX2341X_CAP_HAS_SLICED_VBI)
+ return v4l2_ctrl_query_fill_std(qctrl);
+ return cx2341x_ctrl_query_fill(qctrl,
+ V4L2_MPEG_STREAM_VBI_FMT_NONE,
+ V4L2_MPEG_STREAM_VBI_FMT_NONE, 1,
+ V4L2_MPEG_STREAM_VBI_FMT_NONE);
+
/* CX23415/6 specific */
case V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE:
return cx2341x_ctrl_query_fill(qctrl,
@@ -639,6 +654,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
{
static struct cx2341x_mpeg_params default_params = {
/* misc */
+ .capabilities = 0,
.port = CX2341X_PORT_MEMORY,
.width = 720,
.height = 480,
@@ -646,6 +662,7 @@ void cx2341x_fill_defaults(struct cx2341x_mpeg_params *p)
/* stream */
.stream_type = V4L2_MPEG_STREAM_TYPE_MPEG2_PS,
+ .stream_vbi_fmt = V4L2_MPEG_STREAM_VBI_FMT_NONE,
/* audio */
.audio_sampling_freq = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000,
diff --git a/drivers/media/video/cx88/Kconfig b/drivers/media/video/cx88/Kconfig
index 91e1c481a16..80e23ee9801 100644
--- a/drivers/media/video/cx88/Kconfig
+++ b/drivers/media/video/cx88/Kconfig
@@ -11,7 +11,6 @@ config VIDEO_CX88
select VIDEO_BUF
select VIDEO_TUNER
select VIDEO_TVEEPROM
- select VIDEO_CX2341X
select VIDEO_IR
---help---
This is a video4linux driver for Conexant 2388x based
@@ -36,13 +35,25 @@ config VIDEO_CX88_ALSA
To compile this driver as a module, choose M here: the
module will be called cx88-alsa.
+config VIDEO_CX88_BLACKBIRD
+ tristate "Blackbird MPEG encoder support (cx2388x + cx23416)"
+ depends on VIDEO_CX88
+ select VIDEO_CX2341X
+ ---help---
+ This adds support for MPEG encoder cards based on the
+ Blackbird reference design, using the Conexant 2388x
+ and 23416 chips.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cx88-blackbird.
+
config VIDEO_CX88_DVB
tristate "DVB/ATSC Support for cx2388x based TV cards"
depends on VIDEO_CX88 && DVB_CORE
select VIDEO_BUF_DVB
---help---
This adds support for DVB/ATSC cards based on the
- Connexant 2388x chip.
+ Conexant 2388x chip.
To compile this driver as a module, choose M here: the
module will be called cx88-dvb.
diff --git a/drivers/media/video/cx88/Makefile b/drivers/media/video/cx88/Makefile
index 0dcd09b9b72..352b919f30c 100644
--- a/drivers/media/video/cx88/Makefile
+++ b/drivers/media/video/cx88/Makefile
@@ -3,9 +3,10 @@ cx88xx-objs := cx88-cards.o cx88-core.o cx88-i2c.o cx88-tvaudio.o \
cx8800-objs := cx88-video.o cx88-vbi.o
cx8802-objs := cx88-mpeg.o
-obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o cx8802.o cx88-blackbird.o
-obj-$(CONFIG_VIDEO_CX88_DVB) += cx88-dvb.o
+obj-$(CONFIG_VIDEO_CX88) += cx88xx.o cx8800.o cx8802.o
obj-$(CONFIG_VIDEO_CX88_ALSA) += cx88-alsa.o
+obj-$(CONFIG_VIDEO_CX88_BLACKBIRD) += cx88-blackbird.o
+obj-$(CONFIG_VIDEO_CX88_DVB) += cx88-dvb.o
obj-$(CONFIG_VIDEO_CX88_VP3054) += cx88-vp3054-i2c.o
EXTRA_CFLAGS += -Idrivers/media/video
diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c
index 67fd3302e8f..78df66671ea 100644
--- a/drivers/media/video/cx88/cx88-blackbird.c
+++ b/drivers/media/video/cx88/cx88-blackbird.c
@@ -846,7 +846,7 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file,
BLACKBIRD_MPEG_CAPTURE,
BLACKBIRD_RAW_BITS_NONE);
- cx88_do_ioctl( inode, file, 0, dev->core, cmd, arg, cx88_ioctl_hook );
+ cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl);
blackbird_initialize_codec(dev);
cx88_set_scale(dev->core, dev->width, dev->height,
@@ -855,15 +855,11 @@ static int mpeg_do_ioctl(struct inode *inode, struct file *file,
}
default:
- return cx88_do_ioctl( inode, file, 0, dev->core, cmd, arg, cx88_ioctl_hook );
+ return cx88_do_ioctl(inode, file, 0, dev->core, cmd, arg, mpeg_do_ioctl);
}
return 0;
}
-int (*cx88_ioctl_hook)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg);
-unsigned int (*cx88_ioctl_translator)(unsigned int cmd);
-
static unsigned int mpeg_translate_ioctl(unsigned int cmd)
{
return cmd;
@@ -872,8 +868,8 @@ static unsigned int mpeg_translate_ioctl(unsigned int cmd)
static int mpeg_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
- cmd = cx88_ioctl_translator( cmd );
- return video_usercopy(inode, file, cmd, arg, cx88_ioctl_hook);
+ cmd = mpeg_translate_ioctl( cmd );
+ return video_usercopy(inode, file, cmd, arg, mpeg_do_ioctl);
}
static int mpeg_open(struct inode *inode, struct file *file)
@@ -1119,8 +1115,6 @@ static int blackbird_init(void)
printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
#endif
- cx88_ioctl_hook = mpeg_do_ioctl;
- cx88_ioctl_translator = mpeg_translate_ioctl;
return pci_register_driver(&blackbird_pci_driver);
}
@@ -1132,9 +1126,6 @@ static void blackbird_fini(void)
module_init(blackbird_init);
module_exit(blackbird_fini);
-EXPORT_SYMBOL(cx88_ioctl_hook);
-EXPORT_SYMBOL(cx88_ioctl_translator);
-
/* ----------------------------------------------------------- */
/*
* Local variables:
diff --git a/drivers/media/video/cx88/cx88-cards.c b/drivers/media/video/cx88/cx88-cards.c
index 67cdd827086..f9d68f20dc8 100644
--- a/drivers/media/video/cx88/cx88-cards.c
+++ b/drivers/media/video/cx88/cx88-cards.c
@@ -1700,11 +1700,6 @@ void cx88_card_setup(struct cx88_core *core)
/* ------------------------------------------------------------------ */
EXPORT_SYMBOL(cx88_boards);
-EXPORT_SYMBOL(cx88_bcount);
-EXPORT_SYMBOL(cx88_subids);
-EXPORT_SYMBOL(cx88_idcount);
-EXPORT_SYMBOL(cx88_card_list);
-EXPORT_SYMBOL(cx88_card_setup);
/*
* Local variables:
diff --git a/drivers/media/video/cx88/cx88-core.c b/drivers/media/video/cx88/cx88-core.c
index c56292d8d93..26f4c0fb8c3 100644
--- a/drivers/media/video/cx88/cx88-core.c
+++ b/drivers/media/video/cx88/cx88-core.c
@@ -1181,8 +1181,6 @@ EXPORT_SYMBOL(cx88_set_scale);
EXPORT_SYMBOL(cx88_vdev_init);
EXPORT_SYMBOL(cx88_core_get);
EXPORT_SYMBOL(cx88_core_put);
-EXPORT_SYMBOL(cx88_start_audio_dma);
-EXPORT_SYMBOL(cx88_stop_audio_dma);
/*
* Local variables:
diff --git a/drivers/media/video/cx88/cx88-i2c.c b/drivers/media/video/cx88/cx88-i2c.c
index 7efa6def0bd..70663805cc3 100644
--- a/drivers/media/video/cx88/cx88-i2c.c
+++ b/drivers/media/video/cx88/cx88-i2c.c
@@ -234,7 +234,6 @@ int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci)
/* ----------------------------------------------------------------------- */
EXPORT_SYMBOL(cx88_call_i2c_clients);
-EXPORT_SYMBOL(cx88_i2c_init);
/*
* Local variables:
diff --git a/drivers/media/video/cx88/cx88-tvaudio.c b/drivers/media/video/cx88/cx88-tvaudio.c
index 1e4278b588d..5785c348157 100644
--- a/drivers/media/video/cx88/cx88-tvaudio.c
+++ b/drivers/media/video/cx88/cx88-tvaudio.c
@@ -726,7 +726,7 @@ static void set_audio_standard_FM(struct cx88_core *core,
/* ----------------------------------------------------------- */
-int cx88_detect_nicam(struct cx88_core *core)
+static int cx88_detect_nicam(struct cx88_core *core)
{
int i, j = 0;
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index 694d1d80ff3..dcda5291b99 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -494,8 +494,7 @@ static int restart_video_queue(struct cx8800_dev *dev,
return 0;
buf = list_entry(q->queued.next, struct cx88_buffer, vb.queue);
if (NULL == prev) {
- list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue,&q->active);
+ list_move_tail(&buf->vb.queue, &q->active);
start_video_dma(dev, q, buf);
buf->vb.state = STATE_ACTIVE;
buf->count = q->count++;
@@ -506,8 +505,7 @@ static int restart_video_queue(struct cx8800_dev *dev,
} else if (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt) {
- list_del(&buf->vb.queue);
- list_add_tail(&buf->vb.queue,&q->active);
+ list_move_tail(&buf->vb.queue, &q->active);
buf->vb.state = STATE_ACTIVE;
buf->count = q->count++;
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
diff --git a/drivers/media/video/cx88/cx88.h b/drivers/media/video/cx88/cx88.h
index dc7bc35f18f..9a9a0fc7a41 100644
--- a/drivers/media/video/cx88/cx88.h
+++ b/drivers/media/video/cx88/cx88.h
@@ -563,7 +563,6 @@ void cx88_newstation(struct cx88_core *core);
void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t);
void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual);
int cx88_audio_thread(void *data);
-int cx88_detect_nicam(struct cx88_core *core);
/* ----------------------------------------------------------- */
/* cx88-input.c */
@@ -592,12 +591,6 @@ extern int cx88_do_ioctl(struct inode *inode, struct file *file, int radio,
struct cx88_core *core, unsigned int cmd,
void *arg, v4l2_kioctl driver_ioctl);
-/* ----------------------------------------------------------- */
-/* cx88-blackbird.c */
-extern int (*cx88_ioctl_hook)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg);
-extern unsigned int (*cx88_ioctl_translator)(unsigned int cmd);
-
/*
* Local variables:
* c-basic-offset: 8
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index e95792fd70f..a26ded7d6fa 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -730,14 +730,10 @@ static int tuner_command(struct i2c_client *client, unsigned int cmd, void *arg)
{
struct v4l2_frequency *f = arg;
+ if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY")
+ == EINVAL)
+ return 0;
switch_v4l2();
- if ((V4L2_TUNER_RADIO == f->type && V4L2_TUNER_RADIO != t->mode)
- || (V4L2_TUNER_DIGITAL_TV == f->type
- && V4L2_TUNER_DIGITAL_TV != t->mode)) {
- if (set_mode (client, t, f->type, "VIDIOC_S_FREQUENCY")
- == EINVAL)
- return 0;
- }
set_freq(client,f->frequency);
break;
diff --git a/drivers/media/video/usbvideo/quickcam_messenger.c b/drivers/media/video/usbvideo/quickcam_messenger.c
index 3f3182a24da..56e01b62241 100644
--- a/drivers/media/video/usbvideo/quickcam_messenger.c
+++ b/drivers/media/video/usbvideo/quickcam_messenger.c
@@ -33,7 +33,7 @@
#include <linux/module.h>
#include <linux/init.h>
#include <linux/input.h>
-#include <linux/usb_input.h>
+#include <linux/usb/input.h>
#include "usbvideo.h"
#include "quickcam_messenger.h"
diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 14e52347135..f4b3d64ebf7 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -1101,6 +1101,11 @@ const char **v4l2_ctrl_get_menu(u32 id)
"MPEG-2 SVCD-compatible Stream",
NULL
};
+ static const char *mpeg_stream_vbi_fmt[] = {
+ "No VBI",
+ "VBI in private packets, IVTV format",
+ NULL
+ };
switch (id) {
case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
@@ -1129,6 +1134,8 @@ const char **v4l2_ctrl_get_menu(u32 id)
return mpeg_video_bitrate_mode;
case V4L2_CID_MPEG_STREAM_TYPE:
return mpeg_stream_type;
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
+ return mpeg_stream_vbi_fmt;
default:
return NULL;
}
@@ -1182,6 +1189,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
case V4L2_CID_MPEG_STREAM_PID_PCR: name = "Stream PCR Program ID"; break;
case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break;
case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break;
+ case V4L2_CID_MPEG_STREAM_VBI_FMT: name = "Stream VBI Format"; break;
default:
return -EINVAL;
@@ -1208,6 +1216,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
case V4L2_CID_MPEG_VIDEO_ASPECT:
case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
case V4L2_CID_MPEG_STREAM_TYPE:
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
qctrl->type = V4L2_CTRL_TYPE_MENU;
step = 1;
break;
@@ -1367,6 +1376,11 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO:
return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
+ case V4L2_CID_MPEG_STREAM_VBI_FMT:
+ return v4l2_ctrl_query_fill(qctrl,
+ V4L2_MPEG_STREAM_VBI_FMT_NONE,
+ V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
+ V4L2_MPEG_STREAM_VBI_FMT_NONE);
default:
return -EINVAL;
}
diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c
index 0758cb1d010..24a03152d19 100644
--- a/drivers/mtd/maps/sun_uflash.c
+++ b/drivers/mtd/maps/sun_uflash.c
@@ -18,6 +18,7 @@
#include <linux/ioport.h>
#include <asm/ebus.h>
#include <asm/oplib.h>
+#include <asm/prom.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -30,146 +31,140 @@
#define UFLASH_WINDOW_SIZE 0x200000
#define UFLASH_BUSWIDTH 1 /* EBus is 8-bit */
-MODULE_AUTHOR
- ("Eric Brower <ebrower@usa.net>");
-MODULE_DESCRIPTION
- ("User-programmable flash device on Sun Microsystems boardsets");
-MODULE_SUPPORTED_DEVICE
- ("userflash");
-MODULE_LICENSE
- ("GPL");
+MODULE_AUTHOR("Eric Brower <ebrower@usa.net>");
+MODULE_DESCRIPTION("User-programmable flash device on Sun Microsystems boardsets");
+MODULE_SUPPORTED_DEVICE("userflash");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("2.0");
static LIST_HEAD(device_list);
struct uflash_dev {
- char * name; /* device name */
+ char *name; /* device name */
struct map_info map; /* mtd map info */
- struct mtd_info * mtd; /* mtd info */
- struct list_head list;
+ struct mtd_info *mtd; /* mtd info */
};
struct map_info uflash_map_templ = {
- .name = "SUNW,???-????",
- .size = UFLASH_WINDOW_SIZE,
- .bankwidth = UFLASH_BUSWIDTH,
+ .name = "SUNW,???-????",
+ .size = UFLASH_WINDOW_SIZE,
+ .bankwidth = UFLASH_BUSWIDTH,
};
-int uflash_devinit(struct linux_ebus_device* edev)
+int uflash_devinit(struct linux_ebus_device *edev, struct device_node *dp)
{
- int iTmp, nregs;
- struct linux_prom_registers regs[2];
- struct uflash_dev *pdev;
-
- iTmp = prom_getproperty(
- edev->prom_node, "reg", (void *)regs, sizeof(regs));
- if ((iTmp % sizeof(regs[0])) != 0) {
- printk("%s: Strange reg property size %d\n",
- UFLASH_DEVNAME, iTmp);
- return -ENODEV;
- }
+ struct uflash_dev *up;
+ struct resource *res;
- nregs = iTmp / sizeof(regs[0]);
+ res = &edev->resource[0];
- if (nregs != 1) {
+ if (edev->num_addrs != 1) {
/* Non-CFI userflash device-- once I find one we
* can work on supporting it.
*/
printk("%s: unsupported device at 0x%lx (%d regs): " \
"email ebrower@usa.net\n",
- UFLASH_DEVNAME, edev->resource[0].start, nregs);
+ dp->full_name, res->start, edev->num_addrs);
+
return -ENODEV;
}
- if(0 == (pdev = kmalloc(sizeof(struct uflash_dev), GFP_KERNEL))) {
- printk("%s: unable to kmalloc new device\n", UFLASH_DEVNAME);
- return(-ENOMEM);
- }
+ up = kzalloc(sizeof(struct uflash_dev), GFP_KERNEL);
+ if (!up)
+ return -ENOMEM;
/* copy defaults and tweak parameters */
- memcpy(&pdev->map, &uflash_map_templ, sizeof(uflash_map_templ));
- pdev->map.size = regs[0].reg_size;
-
- iTmp = prom_getproplen(edev->prom_node, "model");
- pdev->name = kmalloc(iTmp, GFP_KERNEL);
- prom_getstring(edev->prom_node, "model", pdev->name, iTmp);
- if(0 != pdev->name && 0 < strlen(pdev->name)) {
- pdev->map.name = pdev->name;
- }
- pdev->map.phys = edev->resource[0].start;
- pdev->map.virt = ioremap_nocache(edev->resource[0].start, pdev->map.size);
- if(0 == pdev->map.virt) {
- printk("%s: failed to map device\n", __FUNCTION__);
- kfree(pdev->name);
- kfree(pdev);
- return(-1);
+ memcpy(&up->map, &uflash_map_templ, sizeof(uflash_map_templ));
+ up->map.size = (res->end - res->start) + 1UL;
+
+ up->name = of_get_property(dp, "model", NULL);
+ if (up->name && 0 < strlen(up->name))
+ up->map.name = up->name;
+
+ up->map.phys = res->start;
+
+ up->map.virt = ioremap_nocache(res->start, up->map.size);
+ if (!up->map.virt) {
+ printk("%s: Failed to map device.\n", dp->full_name);
+ kfree(up);
+
+ return -EINVAL;
}
- simple_map_init(&pdev->map);
+ simple_map_init(&up->map);
/* MTD registration */
- pdev->mtd = do_map_probe("cfi_probe", &pdev->map);
- if(0 == pdev->mtd) {
- iounmap(pdev->map.virt);
- kfree(pdev->name);
- kfree(pdev);
- return(-ENXIO);
+ up->mtd = do_map_probe("cfi_probe", &up->map);
+ if (!up->mtd) {
+ iounmap(up->map.virt);
+ kfree(up);
+
+ return -ENXIO;
}
- list_add(&pdev->list, &device_list);
+ up->mtd->owner = THIS_MODULE;
- pdev->mtd->owner = THIS_MODULE;
+ add_mtd_device(up->mtd);
- add_mtd_device(pdev->mtd);
- return(0);
+ dev_set_drvdata(&edev->ofdev.dev, up);
+
+ return 0;
}
-static int __init uflash_init(void)
+static int __devinit uflash_probe(struct of_device *dev, const struct of_device_id *match)
{
- struct linux_ebus *ebus = NULL;
- struct linux_ebus_device *edev = NULL;
-
- for_each_ebus(ebus) {
- for_each_ebusdev(edev, ebus) {
- if (!strcmp(edev->prom_name, UFLASH_OBPNAME)) {
- if(0 > prom_getproplen(edev->prom_node, "user")) {
- DEBUG(2, "%s: ignoring device at 0x%lx\n",
- UFLASH_DEVNAME, edev->resource[0].start);
- } else {
- uflash_devinit(edev);
- }
- }
- }
- }
+ struct linux_ebus_device *edev = to_ebus_device(&dev->dev);
+ struct device_node *dp = dev->node;
- if(list_empty(&device_list)) {
- printk("%s: unable to locate device\n", UFLASH_DEVNAME);
+ if (of_find_property(dp, "user", NULL))
return -ENODEV;
- }
- return(0);
+
+ return uflash_devinit(edev, dp);
}
-static void __exit uflash_cleanup(void)
+static int __devexit uflash_remove(struct of_device *dev)
{
- struct list_head *udevlist;
- struct uflash_dev *udev;
-
- list_for_each(udevlist, &device_list) {
- udev = list_entry(udevlist, struct uflash_dev, list);
- DEBUG(2, "%s: removing device %s\n",
- UFLASH_DEVNAME, udev->name);
-
- if(0 != udev->mtd) {
- del_mtd_device(udev->mtd);
- map_destroy(udev->mtd);
- }
- if(0 != udev->map.virt) {
- iounmap(udev->map.virt);
- udev->map.virt = NULL;
- }
- kfree(udev->name);
- kfree(udev);
+ struct uflash_dev *up = dev_get_drvdata(&dev->dev);
+
+ if (up->mtd) {
+ del_mtd_device(up->mtd);
+ map_destroy(up->mtd);
}
+ if (up->map.virt) {
+ iounmap(up->map.virt);
+ up->map.virt = NULL;
+ }
+
+ kfree(up);
+
+ return 0;
+}
+
+static struct of_device_id uflash_match[] = {
+ {
+ .name = UFLASH_OBPNAME,
+ },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, uflash_match);
+
+static struct of_platform_driver uflash_driver = {
+ .name = UFLASH_DEVNAME,
+ .match_table = uflash_match,
+ .probe = uflash_probe,
+ .remove = __devexit_p(uflash_remove),
+};
+
+static int __init uflash_init(void)
+{
+ return of_register_driver(&uflash_driver, &ebus_bus_type);
+}
+
+static void __exit uflash_exit(void)
+{
+ of_unregister_driver(&uflash_driver);
}
module_init(uflash_init);
-module_exit(uflash_cleanup);
+module_exit(uflash_exit);
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index cc7ff8f00e4..cb62f2a9676 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -115,8 +115,12 @@ static nsc_chip_t chips[] = {
/* Contributed by Jan Frey - IBM A30/A31 */
{ "PC8739x", { 0x2e, 0x4e, 0x0 }, 0x20, 0xea, 0xff,
nsc_ircc_probe_39x, nsc_ircc_init_39x },
- { "IBM", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf4, 0xff,
- nsc_ircc_probe_39x, nsc_ircc_init_39x },
+ /* IBM ThinkPads using PC8738x (T60/X60/Z60) */
+ { "IBM-PC8738x", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf4, 0xff,
+ nsc_ircc_probe_39x, nsc_ircc_init_39x },
+ /* IBM ThinkPads using PC8394T (T43/R52/?) */
+ { "IBM-PC8394T", { 0x2e, 0x4e, 0x0 }, 0x20, 0xf9, 0xff,
+ nsc_ircc_probe_39x, nsc_ircc_init_39x },
{ NULL }
};
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 01cd8ec751e..d643a097faa 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -2578,8 +2578,7 @@ ppp_find_channel(int unit)
list_for_each_entry(pch, &new_channels, list) {
if (pch->file.index == unit) {
- list_del(&pch->list);
- list_add(&pch->list, &all_channels);
+ list_move(&pch->list, &all_channels);
return pch;
}
}
diff --git a/drivers/net/wireless/bcm43xx/Kconfig b/drivers/net/wireless/bcm43xx/Kconfig
index 25ea4748f0b..533993f538f 100644
--- a/drivers/net/wireless/bcm43xx/Kconfig
+++ b/drivers/net/wireless/bcm43xx/Kconfig
@@ -2,6 +2,7 @@ config BCM43XX
tristate "Broadcom BCM43xx wireless support"
depends on PCI && IEEE80211 && IEEE80211_SOFTMAC && NET_RADIO && EXPERIMENTAL
select FW_LOADER
+ select HW_RANDOM
---help---
This is an experimental driver for the Broadcom 43xx wireless chip,
found in the Apple Airport Extreme and various other devices.
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx.h b/drivers/net/wireless/bcm43xx/bcm43xx.h
index d8f917c21ea..17a56828e23 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx.h
+++ b/drivers/net/wireless/bcm43xx/bcm43xx.h
@@ -1,6 +1,7 @@
#ifndef BCM43xx_H_
#define BCM43xx_H_
+#include <linux/hw_random.h>
#include <linux/version.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
@@ -82,6 +83,7 @@
#define BCM43xx_MMIO_TSF_1 0x634 /* core rev < 3 only */
#define BCM43xx_MMIO_TSF_2 0x636 /* core rev < 3 only */
#define BCM43xx_MMIO_TSF_3 0x638 /* core rev < 3 only */
+#define BCM43xx_MMIO_RNG 0x65A
#define BCM43xx_MMIO_POWERUP_DELAY 0x6A8
/* SPROM offsets. */
@@ -750,6 +752,10 @@ struct bcm43xx_private {
const struct firmware *initvals0;
const struct firmware *initvals1;
+ /* Random Number Generator. */
+ struct hwrng rng;
+ char rng_name[20 + 1];
+
/* Debugging stuff follows. */
#ifdef CONFIG_BCM43XX_DEBUG
struct bcm43xx_dfsentry *dfsentry;
diff --git a/drivers/net/wireless/bcm43xx/bcm43xx_main.c b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
index 085d7857fe3..27bcf47228e 100644
--- a/drivers/net/wireless/bcm43xx/bcm43xx_main.c
+++ b/drivers/net/wireless/bcm43xx/bcm43xx_main.c
@@ -3237,6 +3237,39 @@ static void bcm43xx_security_init(struct bcm43xx_private *bcm)
bcm43xx_clear_keys(bcm);
}
+static int bcm43xx_rng_read(struct hwrng *rng, u32 *data)
+{
+ struct bcm43xx_private *bcm = (struct bcm43xx_private *)rng->priv;
+ unsigned long flags;
+
+ bcm43xx_lock_irqonly(bcm, flags);
+ *data = bcm43xx_read16(bcm, BCM43xx_MMIO_RNG);
+ bcm43xx_unlock_irqonly(bcm, flags);
+
+ return (sizeof(u16));
+}
+
+static void bcm43xx_rng_exit(struct bcm43xx_private *bcm)
+{
+ hwrng_unregister(&bcm->rng);
+}
+
+static int bcm43xx_rng_init(struct bcm43xx_private *bcm)
+{
+ int err;
+
+ snprintf(bcm->rng_name, ARRAY_SIZE(bcm->rng_name),
+ "%s_%s", KBUILD_MODNAME, bcm->net_dev->name);
+ bcm->rng.name = bcm->rng_name;
+ bcm->rng.data_read = bcm43xx_rng_read;
+ bcm->rng.priv = (unsigned long)bcm;
+ err = hwrng_register(&bcm->rng);
+ if (err)
+ printk(KERN_ERR PFX "RNG init failed (%d)\n", err);
+
+ return err;
+}
+
/* This is the opposite of bcm43xx_init_board() */
static void bcm43xx_free_board(struct bcm43xx_private *bcm)
{
@@ -3248,6 +3281,7 @@ static void bcm43xx_free_board(struct bcm43xx_private *bcm)
bcm43xx_set_status(bcm, BCM43xx_STAT_SHUTTINGDOWN);
+ bcm43xx_rng_exit(bcm);
for (i = 0; i < BCM43xx_MAX_80211_CORES; i++) {
if (!bcm->core_80211[i].available)
continue;
@@ -3325,6 +3359,9 @@ static int bcm43xx_init_board(struct bcm43xx_private *bcm)
bcm43xx_switch_core(bcm, &bcm->core_80211[0]);
bcm43xx_mac_enable(bcm);
}
+ err = bcm43xx_rng_init(bcm);
+ if (err)
+ goto err_80211_unwind;
bcm43xx_macfilter_clear(bcm, BCM43xx_MACFILTER_ASSOC);
bcm43xx_macfilter_set(bcm, BCM43xx_MACFILTER_SELF, (u8 *)(bcm->net_dev->dev_addr));
dprintk(KERN_INFO PFX "80211 cores initialized\n");
diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c
index 69a4bbd4cbe..7c43c5392be 100644
--- a/drivers/parport/parport_sunbpp.c
+++ b/drivers/parport/parport_sunbpp.c
@@ -389,7 +389,7 @@ static struct of_device_id bpp_match[] = {
{},
};
-MODULE_DEVICE_TABLE(of, qec_sbus_match);
+MODULE_DEVICE_TABLE(of, bpp_match);
static struct of_platform_driver bpp_sbus_driver = {
.name = "bpp",
diff --git a/drivers/pci/msi-apic.c b/drivers/pci/msi-apic.c
index 0eb5fe9003a..5ed798b319c 100644
--- a/drivers/pci/msi-apic.c
+++ b/drivers/pci/msi-apic.c
@@ -4,6 +4,7 @@
#include <linux/pci.h>
#include <linux/irq.h>
+#include <asm/smp.h>
#include "msi.h"
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index f94419b334f..2eded55ae88 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -1140,10 +1140,9 @@ list_modified:
}
}
/* re-insert all entries from the failed_list into ipm_list */
- list_for_each_entry_safe(ipm, tmp, &failed_list, list) {
- list_del_init(&ipm->list);
- list_add_tail(&ipm->list, &card->ipm_list);
- }
+ list_for_each_entry_safe(ipm, tmp, &failed_list, list)
+ list_move_tail(&ipm->list, &card->ipm_list);
+
spin_unlock_irqrestore(&card->ipm_lock, flags);
}
diff --git a/drivers/sbus/char/cpwatchdog.c b/drivers/sbus/char/cpwatchdog.c
index 5bf3dd901b6..21737b7e86a 100644
--- a/drivers/sbus/char/cpwatchdog.c
+++ b/drivers/sbus/char/cpwatchdog.c
@@ -755,7 +755,7 @@ static int __init wd_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
- if (!strcmp(edev->prom_name, WD_OBPNAME))
+ if (!strcmp(edev->ofdev.node->name, WD_OBPNAME))
goto ebus_done;
}
}
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index cf5b476b549..d7e4bb41bd7 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -29,8 +29,6 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#define PROMLIB_INTERNAL
-
#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
@@ -39,10 +37,10 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
#include <linux/init.h>
#include <linux/fs.h>
#include <asm/oplib.h>
+#include <asm/prom.h>
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/openpromio.h>
@@ -51,15 +49,20 @@
#include <asm/pbm.h>
#endif
+MODULE_AUTHOR("Thomas K. Dyas (tdyas@noc.rutgers.edu) and Eddie C. Dost (ecd@skynet.be)");
+MODULE_DESCRIPTION("OPENPROM Configuration Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.0");
+
/* Private data kept by the driver for each descriptor. */
typedef struct openprom_private_data
{
- int current_node; /* Current node for SunOS ioctls. */
- int lastnode; /* Last valid node used by BSD ioctls. */
+ struct device_node *current_node; /* Current node for SunOS ioctls. */
+ struct device_node *lastnode; /* Last valid node used by BSD ioctls. */
} DATA;
/* ID of the PROM node containing all of the EEPROM options. */
-static int options_node = 0;
+static struct device_node *options_node;
/*
* Copy an openpromio structure into kernel space from user space.
@@ -87,9 +90,8 @@ static int copyin(struct openpromio __user *info, struct openpromio **opp_p)
if (bufsize > OPROMMAXPARAM)
bufsize = OPROMMAXPARAM;
- if (!(*opp_p = kmalloc(sizeof(int) + bufsize + 1, GFP_KERNEL)))
+ if (!(*opp_p = kzalloc(sizeof(int) + bufsize + 1, GFP_KERNEL)))
return -ENOMEM;
- memset(*opp_p, 0, sizeof(int) + bufsize + 1);
if (copy_from_user(&(*opp_p)->oprom_array,
&info->oprom_array, bufsize)) {
@@ -107,10 +109,9 @@ static int getstrings(struct openpromio __user *info, struct openpromio **opp_p)
if (!info || !opp_p)
return -EFAULT;
- if (!(*opp_p = kmalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL)))
+ if (!(*opp_p = kzalloc(sizeof(int) + OPROMMAXPARAM + 1, GFP_KERNEL)))
return -ENOMEM;
- memset(*opp_p, 0, sizeof(int) + OPROMMAXPARAM + 1);
(*opp_p)->oprom_size = 0;
n = bufsize = 0;
@@ -140,16 +141,164 @@ static int copyout(void __user *info, struct openpromio *opp, int len)
return 0;
}
+static int opromgetprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize)
+{
+ void *pval;
+ int len;
+
+ pval = of_get_property(dp, op->oprom_array, &len);
+ if (!pval || len <= 0 || len > bufsize)
+ return copyout(argp, op, sizeof(int));
+
+ memcpy(op->oprom_array, pval, len);
+ op->oprom_array[len] = '\0';
+ op->oprom_size = len;
+
+ return copyout(argp, op, sizeof(int) + bufsize);
+}
+
+static int opromnxtprop(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize)
+{
+ struct property *prop;
+ int len;
+
+ if (op->oprom_array[0] == '\0') {
+ prop = dp->properties;
+ if (!prop)
+ return copyout(argp, op, sizeof(int));
+ len = strlen(prop->name);
+ } else {
+ prop = of_find_property(dp, op->oprom_array, NULL);
+
+ if (!prop ||
+ !prop->next ||
+ (len = strlen(prop->next->name)) + 1 > bufsize)
+ return copyout(argp, op, sizeof(int));
+
+ prop = prop->next;
+ }
+
+ memcpy(op->oprom_array, prop->name, len);
+ op->oprom_array[len] = '\0';
+ op->oprom_size = ++len;
+
+ return copyout(argp, op, sizeof(int) + bufsize);
+}
+
+static int opromsetopt(struct device_node *dp, struct openpromio *op, int bufsize)
+{
+ char *buf = op->oprom_array + strlen(op->oprom_array) + 1;
+ int len = op->oprom_array + bufsize - buf;
+
+ return of_set_property(options_node, op->oprom_array, buf, len);
+}
+
+static int opromnext(void __user *argp, unsigned int cmd, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
+{
+ phandle ph;
+
+ BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
+
+ if (bufsize < sizeof(phandle))
+ return -EINVAL;
+
+ ph = *((int *) op->oprom_array);
+ if (ph) {
+ dp = of_find_node_by_phandle(ph);
+ if (!dp)
+ return -EINVAL;
+
+ switch (cmd) {
+ case OPROMNEXT:
+ dp = dp->sibling;
+ break;
+
+ case OPROMCHILD:
+ dp = dp->child;
+ break;
+
+ case OPROMSETCUR:
+ default:
+ break;
+ };
+ } else {
+ /* Sibling of node zero is the root node. */
+ if (cmd != OPROMNEXT)
+ return -EINVAL;
+
+ dp = of_find_node_by_path("/");
+ }
+
+ ph = 0;
+ if (dp)
+ ph = dp->node;
+
+ data->current_node = dp;
+ *((int *) op->oprom_array) = ph;
+ op->oprom_size = sizeof(phandle);
+
+ return copyout(argp, op, bufsize + sizeof(int));
+}
+
+static int oprompci2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
+{
+ int err = -EINVAL;
+
+ if (bufsize >= 2*sizeof(int)) {
+#ifdef CONFIG_PCI
+ struct pci_dev *pdev;
+ struct pcidev_cookie *pcp;
+ pdev = pci_find_slot (((int *) op->oprom_array)[0],
+ ((int *) op->oprom_array)[1]);
+
+ pcp = pdev->sysdata;
+ if (pcp != NULL) {
+ dp = pcp->prom_node;
+ data->current_node = dp;
+ *((int *)op->oprom_array) = dp->node;
+ op->oprom_size = sizeof(int);
+ err = copyout(argp, op, bufsize + sizeof(int));
+ }
+#endif
+ }
+
+ return err;
+}
+
+static int oprompath2node(void __user *argp, struct device_node *dp, struct openpromio *op, int bufsize, DATA *data)
+{
+ dp = of_find_node_by_path(op->oprom_array);
+ data->current_node = dp;
+ *((int *)op->oprom_array) = dp->node;
+ op->oprom_size = sizeof(int);
+
+ return copyout(argp, op, bufsize + sizeof(int));
+}
+
+static int opromgetbootargs(void __user *argp, struct openpromio *op, int bufsize)
+{
+ char *buf = saved_command_line;
+ int len = strlen(buf);
+
+ if (len > bufsize)
+ return -EINVAL;
+
+ strcpy(op->oprom_array, buf);
+ op->oprom_size = len;
+
+ return copyout(argp, op, bufsize + sizeof(int));
+}
+
/*
* SunOS and Solaris /dev/openprom ioctl calls.
*/
static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
- unsigned int cmd, unsigned long arg, int node)
+ unsigned int cmd, unsigned long arg,
+ struct device_node *dp)
{
- DATA *data = (DATA *) file->private_data;
- char buffer[OPROMMAXPARAM+1], *buf;
+ DATA *data = file->private_data;
struct openpromio *opp;
- int bufsize, len, error = 0;
+ int bufsize, error = 0;
static int cnt;
void __user *argp = (void __user *)arg;
@@ -164,119 +313,35 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
switch (cmd) {
case OPROMGETOPT:
case OPROMGETPROP:
- len = prom_getproplen(node, opp->oprom_array);
-
- if (len <= 0 || len > bufsize) {
- error = copyout(argp, opp, sizeof(int));
- break;
- }
-
- len = prom_getproperty(node, opp->oprom_array, buffer, bufsize);
-
- memcpy(opp->oprom_array, buffer, len);
- opp->oprom_array[len] = '\0';
- opp->oprom_size = len;
-
- error = copyout(argp, opp, sizeof(int) + bufsize);
+ error = opromgetprop(argp, dp, opp, bufsize);
break;
case OPROMNXTOPT:
case OPROMNXTPROP:
- buf = prom_nextprop(node, opp->oprom_array, buffer);
-
- len = strlen(buf);
- if (len == 0 || len + 1 > bufsize) {
- error = copyout(argp, opp, sizeof(int));
- break;
- }
-
- memcpy(opp->oprom_array, buf, len);
- opp->oprom_array[len] = '\0';
- opp->oprom_size = ++len;
-
- error = copyout(argp, opp, sizeof(int) + bufsize);
+ error = opromnxtprop(argp, dp, opp, bufsize);
break;
case OPROMSETOPT:
case OPROMSETOPT2:
- buf = opp->oprom_array + strlen(opp->oprom_array) + 1;
- len = opp->oprom_array + bufsize - buf;
-
- error = prom_setprop(options_node, opp->oprom_array,
- buf, len);
-
- if (error < 0)
- error = -EINVAL;
+ error = opromsetopt(dp, opp, bufsize);
break;
case OPROMNEXT:
case OPROMCHILD:
case OPROMSETCUR:
- if (bufsize < sizeof(int)) {
- error = -EINVAL;
- break;
- }
-
- node = *((int *) opp->oprom_array);
-
- switch (cmd) {
- case OPROMNEXT: node = __prom_getsibling(node); break;
- case OPROMCHILD: node = __prom_getchild(node); break;
- case OPROMSETCUR: break;
- }
-
- data->current_node = node;
- *((int *)opp->oprom_array) = node;
- opp->oprom_size = sizeof(int);
-
- error = copyout(argp, opp, bufsize + sizeof(int));
+ error = opromnext(argp, cmd, dp, opp, bufsize, data);
break;
case OPROMPCI2NODE:
- error = -EINVAL;
-
- if (bufsize >= 2*sizeof(int)) {
-#ifdef CONFIG_PCI
- struct pci_dev *pdev;
- struct pcidev_cookie *pcp;
- pdev = pci_find_slot (((int *) opp->oprom_array)[0],
- ((int *) opp->oprom_array)[1]);
-
- pcp = pdev->sysdata;
- if (pcp != NULL) {
- node = pcp->prom_node->node;
- data->current_node = node;
- *((int *)opp->oprom_array) = node;
- opp->oprom_size = sizeof(int);
- error = copyout(argp, opp, bufsize + sizeof(int));
- }
-#endif
- }
+ error = oprompci2node(argp, dp, opp, bufsize, data);
break;
case OPROMPATH2NODE:
- node = prom_finddevice(opp->oprom_array);
- data->current_node = node;
- *((int *)opp->oprom_array) = node;
- opp->oprom_size = sizeof(int);
-
- error = copyout(argp, opp, bufsize + sizeof(int));
+ error = oprompath2node(argp, dp, opp, bufsize, data);
break;
case OPROMGETBOOTARGS:
- buf = saved_command_line;
-
- len = strlen(buf);
-
- if (len > bufsize) {
- error = -EINVAL;
- break;
- }
-
- strcpy(opp->oprom_array, buf);
- opp->oprom_size = len;
-
- error = copyout(argp, opp, bufsize + sizeof(int));
+ error = opromgetbootargs(argp, opp, bufsize);
break;
case OPROMU2P:
@@ -297,25 +362,14 @@ static int openprom_sunos_ioctl(struct inode * inode, struct file * file,
return error;
}
-
-/* Return nonzero if a specific node is in the PROM device tree. */
-static int intree(int root, int node)
+static struct device_node *get_node(phandle n, DATA *data)
{
- for (; root != 0; root = prom_getsibling(root))
- if (root == node || intree(prom_getchild(root),node))
- return 1;
- return 0;
-}
+ struct device_node *dp = of_find_node_by_phandle(n);
-/* Return nonzero if a specific node is "valid". */
-static int goodnode(int n, DATA *data)
-{
- if (n == data->lastnode || n == prom_root_node || n == options_node)
- return 1;
- if (n == 0 || n == -1 || !intree(prom_root_node,n))
- return 0;
- data->lastnode = n;
- return 1;
+ if (dp)
+ data->lastnode = dp;
+
+ return dp;
}
/* Copy in a whole string from userspace into kernelspace. */
@@ -330,7 +384,7 @@ static int copyin_string(char __user *user, size_t len, char **ptr)
if (!tmp)
return -ENOMEM;
- if(copy_from_user(tmp, user, len)) {
+ if (copy_from_user(tmp, user, len)) {
kfree(tmp);
return -EFAULT;
}
@@ -345,162 +399,187 @@ static int copyin_string(char __user *user, size_t len, char **ptr)
/*
* NetBSD /dev/openprom ioctl calls.
*/
-static int openprom_bsd_ioctl(struct inode * inode, struct file * file,
- unsigned int cmd, unsigned long arg)
+static int opiocget(void __user *argp, DATA *data)
{
- DATA *data = (DATA *) file->private_data;
- void __user *argp = (void __user *)arg;
struct opiocdesc op;
- int error, node, len;
- char *str, *tmp;
- char buffer[64];
- static int cnt;
-
- switch (cmd) {
- case OPIOCGET:
- if (copy_from_user(&op, argp, sizeof(op)))
- return -EFAULT;
-
- if (!goodnode(op.op_nodeid,data))
- return -EINVAL;
+ struct device_node *dp;
+ char *str;
+ void *pval;
+ int err, len;
- error = copyin_string(op.op_name, op.op_namelen, &str);
- if (error)
- return error;
+ if (copy_from_user(&op, argp, sizeof(op)))
+ return -EFAULT;
- len = prom_getproplen(op.op_nodeid,str);
+ dp = get_node(op.op_nodeid, data);
- if (len > op.op_buflen) {
- kfree(str);
- return -ENOMEM;
- }
+ err = copyin_string(op.op_name, op.op_namelen, &str);
+ if (err)
+ return err;
+ pval = of_get_property(dp, str, &len);
+ err = 0;
+ if (!pval || len > op.op_buflen) {
+ err = -EINVAL;
+ } else {
op.op_buflen = len;
+ if (copy_to_user(argp, &op, sizeof(op)) ||
+ copy_to_user(op.op_buf, pval, len))
+ err = -EFAULT;
+ }
+ kfree(str);
- if (len <= 0) {
- kfree(str);
- /* Verified by the above copy_from_user */
- if (__copy_to_user(argp, &op,
- sizeof(op)))
- return -EFAULT;
- return 0;
- }
+ return err;
+}
- tmp = kmalloc(len + 1, GFP_KERNEL);
- if (!tmp) {
- kfree(str);
- return -ENOMEM;
- }
+static int opiocnextprop(void __user *argp, DATA *data)
+{
+ struct opiocdesc op;
+ struct device_node *dp;
+ struct property *prop;
+ char *str;
+ int err, len;
- cnt = prom_getproperty(op.op_nodeid, str, tmp, len);
- if (cnt <= 0) {
- error = -EINVAL;
- } else {
- tmp[len] = '\0';
+ if (copy_from_user(&op, argp, sizeof(op)))
+ return -EFAULT;
- if (__copy_to_user(argp, &op, sizeof(op)) != 0 ||
- copy_to_user(op.op_buf, tmp, len) != 0)
- error = -EFAULT;
- }
+ dp = get_node(op.op_nodeid, data);
+ if (!dp)
+ return -EINVAL;
- kfree(tmp);
- kfree(str);
+ err = copyin_string(op.op_name, op.op_namelen, &str);
+ if (err)
+ return err;
- return error;
+ if (str[0] == '\0') {
+ prop = dp->properties;
+ } else {
+ prop = of_find_property(dp, str, NULL);
+ if (prop)
+ prop = prop->next;
+ }
+ kfree(str);
- case OPIOCNEXTPROP:
- if (copy_from_user(&op, argp, sizeof(op)))
- return -EFAULT;
+ if (!prop)
+ len = 0;
+ else
+ len = prop->length;
- if (!goodnode(op.op_nodeid,data))
- return -EINVAL;
+ if (len > op.op_buflen)
+ len = op.op_buflen;
- error = copyin_string(op.op_name, op.op_namelen, &str);
- if (error)
- return error;
+ if (copy_to_user(argp, &op, sizeof(op)))
+ return -EFAULT;
- tmp = prom_nextprop(op.op_nodeid,str,buffer);
+ if (len &&
+ copy_to_user(op.op_buf, prop->value, len))
+ return -EFAULT;
- if (tmp) {
- len = strlen(tmp);
- if (len > op.op_buflen)
- len = op.op_buflen;
- else
- op.op_buflen = len;
- } else {
- len = op.op_buflen = 0;
- }
+ return 0;
+}
- if (!access_ok(VERIFY_WRITE, argp, sizeof(op))) {
- kfree(str);
- return -EFAULT;
- }
+static int opiocset(void __user *argp, DATA *data)
+{
+ struct opiocdesc op;
+ struct device_node *dp;
+ char *str, *tmp;
+ int err;
- if (!access_ok(VERIFY_WRITE, op.op_buf, len)) {
- kfree(str);
- return -EFAULT;
- }
+ if (copy_from_user(&op, argp, sizeof(op)))
+ return -EFAULT;
+
+ dp = get_node(op.op_nodeid, data);
+ if (!dp)
+ return -EINVAL;
- error = __copy_to_user(argp, &op, sizeof(op));
- if (!error) error = __copy_to_user(op.op_buf, tmp, len);
+ err = copyin_string(op.op_name, op.op_namelen, &str);
+ if (err)
+ return err;
+ err = copyin_string(op.op_buf, op.op_buflen, &tmp);
+ if (err) {
kfree(str);
+ return err;
+ }
- return error;
+ err = of_set_property(dp, str, tmp, op.op_buflen);
- case OPIOCSET:
- if (copy_from_user(&op, argp, sizeof(op)))
- return -EFAULT;
+ kfree(str);
+ kfree(tmp);
- if (!goodnode(op.op_nodeid,data))
- return -EINVAL;
+ return err;
+}
- error = copyin_string(op.op_name, op.op_namelen, &str);
- if (error)
- return error;
+static int opiocgetnext(unsigned int cmd, void __user *argp)
+{
+ struct device_node *dp;
+ phandle nd;
- error = copyin_string(op.op_buf, op.op_buflen, &tmp);
- if (error) {
- kfree(str);
- return error;
- }
+ BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
- len = prom_setprop(op.op_nodeid,str,tmp,op.op_buflen+1);
+ if (copy_from_user(&nd, argp, sizeof(phandle)))
+ return -EFAULT;
- if (len != op.op_buflen)
+ if (nd == 0) {
+ if (cmd != OPIOCGETNEXT)
return -EINVAL;
+ dp = of_find_node_by_path("/");
+ } else {
+ dp = of_find_node_by_phandle(nd);
+ nd = 0;
+ if (dp) {
+ if (cmd == OPIOCGETNEXT)
+ dp = dp->sibling;
+ else
+ dp = dp->child;
+ }
+ }
+ if (dp)
+ nd = dp->node;
+ if (copy_to_user(argp, &nd, sizeof(phandle)))
+ return -EFAULT;
- kfree(str);
- kfree(tmp);
+ return 0;
+}
- return 0;
+static int openprom_bsd_ioctl(struct inode * inode, struct file * file,
+ unsigned int cmd, unsigned long arg)
+{
+ DATA *data = (DATA *) file->private_data;
+ void __user *argp = (void __user *)arg;
+ int err;
- case OPIOCGETOPTNODE:
- if (copy_to_user(argp, &options_node, sizeof(int)))
- return -EFAULT;
- return 0;
+ switch (cmd) {
+ case OPIOCGET:
+ err = opiocget(argp, data);
+ break;
- case OPIOCGETNEXT:
- case OPIOCGETCHILD:
- if (copy_from_user(&node, argp, sizeof(int)))
- return -EFAULT;
+ case OPIOCNEXTPROP:
+ err = opiocnextprop(argp, data);
+ break;
- if (cmd == OPIOCGETNEXT)
- node = __prom_getsibling(node);
- else
- node = __prom_getchild(node);
+ case OPIOCSET:
+ err = opiocset(argp, data);
+ break;
+
+ case OPIOCGETOPTNODE:
+ BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
- if (__copy_to_user(argp, &node, sizeof(int)))
+ if (copy_to_user(argp, &options_node->node, sizeof(phandle)))
return -EFAULT;
return 0;
+ case OPIOCGETNEXT:
+ case OPIOCGETCHILD:
+ err = opiocgetnext(cmd, argp);
+ break;
+
default:
- if (cnt++ < 10)
- printk(KERN_INFO "openprom_bsd_ioctl: cmd 0x%X\n", cmd);
return -EINVAL;
- }
+ };
+
+ return err;
}
@@ -511,7 +590,6 @@ static int openprom_ioctl(struct inode * inode, struct file * file,
unsigned int cmd, unsigned long arg)
{
DATA *data = (DATA *) file->private_data;
- static int cnt;
switch (cmd) {
case OPROMGETOPT:
@@ -563,10 +641,8 @@ static int openprom_ioctl(struct inode * inode, struct file * file,
return openprom_bsd_ioctl(inode,file,cmd,arg);
default:
- if (cnt++ < 10)
- printk("openprom_ioctl: cmd 0x%X, arg 0x%lX\n", cmd, arg);
return -EINVAL;
- }
+ };
}
static long openprom_compat_ioctl(struct file *file, unsigned int cmd,
@@ -594,9 +670,7 @@ static long openprom_compat_ioctl(struct file *file, unsigned int cmd,
case OPROMSETCUR:
case OPROMPCI2NODE:
case OPROMPATH2NODE:
- lock_kernel();
rval = openprom_ioctl(file->f_dentry->d_inode, file, cmd, arg);
- lock_kernel();
break;
}
@@ -607,13 +681,13 @@ static int openprom_open(struct inode * inode, struct file * file)
{
DATA *data;
- data = (DATA *) kmalloc(sizeof(DATA), GFP_KERNEL);
+ data = kmalloc(sizeof(DATA), GFP_KERNEL);
if (!data)
return -ENOMEM;
- data->current_node = prom_root_node;
- data->lastnode = prom_root_node;
- file->private_data = (void *)data;
+ data->current_node = of_find_node_by_path("/");
+ data->lastnode = data->current_node;
+ file->private_data = (void *) data;
return 0;
}
@@ -634,24 +708,30 @@ static struct file_operations openprom_fops = {
};
static struct miscdevice openprom_dev = {
- SUN_OPENPROM_MINOR, "openprom", &openprom_fops
+ .minor = SUN_OPENPROM_MINOR,
+ .name = "openprom",
+ .fops = &openprom_fops,
};
static int __init openprom_init(void)
{
- int error;
+ struct device_node *dp;
+ int err;
- error = misc_register(&openprom_dev);
- if (error) {
- printk(KERN_ERR "openprom: unable to get misc minor\n");
- return error;
- }
+ err = misc_register(&openprom_dev);
+ if (err)
+ return err;
- options_node = prom_getchild(prom_root_node);
- options_node = prom_searchsiblings(options_node,"options");
+ dp = of_find_node_by_path("/");
+ dp = dp->child;
+ while (dp) {
+ if (!strcmp(dp->name, "options"))
+ break;
+ dp = dp->sibling;
+ }
+ options_node = dp;
- if (options_node == 0 || options_node == -1) {
- printk(KERN_ERR "openprom: unable to find options node\n");
+ if (!options_node) {
misc_deregister(&openprom_dev);
return -EIO;
}
@@ -666,4 +746,3 @@ static void __exit openprom_cleanup(void)
module_init(openprom_init);
module_exit(openprom_cleanup);
-MODULE_LICENSE("GPL");
diff --git a/drivers/sbus/char/riowatchdog.c b/drivers/sbus/char/riowatchdog.c
index d1babff6a53..2a9cc820442 100644
--- a/drivers/sbus/char/riowatchdog.c
+++ b/drivers/sbus/char/riowatchdog.c
@@ -211,7 +211,7 @@ static int __init riowd_bbc_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
- if (!strcmp(edev->prom_name, "bbc"))
+ if (!strcmp(edev->ofdev.node->name, "bbc"))
goto found_bbc;
}
}
@@ -238,7 +238,7 @@ static int __init riowd_init(void)
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
- if (!strcmp(edev->prom_name, RIOWD_NAME))
+ if (!strcmp(edev->ofdev.node->name, RIOWD_NAME))
goto ebus_done;
}
}
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 35b0a6ebd3f..7cea514e810 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -104,8 +104,11 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co
* always true on real computers. It also has some slight problems
* with the GART on x86-64. I've btw never tried DMA from PCI space
* on this platform but don't be surprised if its problematic.
+ * [AK: something is very very wrong when a driver tests this symbol.
+ * Someone should figure out what the comment writer really meant here and fix
+ * the code. Or just remove that bad code. ]
*/
-#ifndef CONFIG_GART_IOMMU
+#ifndef CONFIG_IOMMU
if ((num_physpages << (PAGE_SHIFT - 12)) <= AAC_MAX_HOSTPHYSMEMPAGES) {
init->HostPhysMemPages =
cpu_to_le32(num_physpages << (PAGE_SHIFT-12));
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 6ab035590ee..b28712df0b7 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -5118,8 +5118,7 @@ static void ncr_ccb_skipped(struct ncb *np, struct ccb *cp)
cp->host_status &= ~HS_SKIPMASK;
cp->start.schedule.l_paddr =
cpu_to_scr(NCB_SCRIPT_PHYS (np, select));
- list_del(&cp->link_ccbq);
- list_add_tail(&cp->link_ccbq, &lp->skip_ccbq);
+ list_move_tail(&cp->link_ccbq, &lp->skip_ccbq);
if (cp->queued) {
--lp->queuedccbs;
}
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index aef093db597..3d4487eac9b 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2258,8 +2258,7 @@ qla2x00_configure_fabric(scsi_qla_host_t *ha)
}
/* Remove device from the new list and add it to DB */
- list_del(&fcport->list);
- list_add_tail(&fcport->list, &ha->fcports);
+ list_move_tail(&fcport->list, &ha->fcports);
/* Login and update database */
qla2x00_fabric_dev_login(ha, fcport, &next_loopid);
diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c
index 2fe7fd19437..4a22909518f 100644
--- a/drivers/usb/host/hc_crisv10.c
+++ b/drivers/usb/host/hc_crisv10.c
@@ -411,8 +411,7 @@ static inline void urb_list_move_last(struct urb *urb, int epid)
urb_entry_t *urb_entry = __urb_list_entry(urb, epid);
assert(urb_entry);
- list_del(&urb_entry->list);
- list_add_tail(&urb_entry->list, &urb_list[epid]);
+ list_move_tail(&urb_entry->list, &urb_list[epid]);
}
/* Get the next urb in the list. */
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 5b06fa36609..56ffc81302f 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -686,19 +686,16 @@ static void whiteheat_close(struct usb_serial_port *port, struct file * filp)
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
usb_kill_urb(urb);
- list_del(tmp);
- list_add(tmp, &info->rx_urbs_free);
- }
- list_for_each_safe(tmp, tmp2, &info->rx_urb_q) {
- list_del(tmp);
- list_add(tmp, &info->rx_urbs_free);
+ list_move(tmp, &info->rx_urbs_free);
}
+ list_for_each_safe(tmp, tmp2, &info->rx_urb_q)
+ list_move(tmp, &info->rx_urbs_free);
+
list_for_each_safe(tmp, tmp2, &info->tx_urbs_submitted) {
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
usb_kill_urb(urb);
- list_del(tmp);
- list_add(tmp, &info->tx_urbs_free);
+ list_move(tmp, &info->tx_urbs_free);
}
spin_unlock_irqrestore(&info->lock, flags);
@@ -1080,8 +1077,7 @@ static void whiteheat_write_callback(struct urb *urb, struct pt_regs *regs)
err("%s - Not my urb!", __FUNCTION__);
return;
}
- list_del(&wrap->list);
- list_add(&wrap->list, &info->tx_urbs_free);
+ list_move(&wrap->list, &info->tx_urbs_free);
spin_unlock(&info->lock);
if (urb->status) {
@@ -1371,8 +1367,7 @@ static int start_port_read(struct usb_serial_port *port)
wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
urb = wrap->urb;
usb_kill_urb(urb);
- list_del(tmp);
- list_add(tmp, &info->rx_urbs_free);
+ list_move(tmp, &info->rx_urbs_free);
}
break;
}
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 168ede7902b..17de4c84db6 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -4,6 +4,21 @@
menu "Graphics support"
+config FIRMWARE_EDID
+ bool "Enable firmware EDID"
+ default y
+ ---help---
+ This enables access to the EDID transferred from the firmware.
+ On the i386, this is from the Video BIOS. Enable this if DDC/I2C
+ transfers do not work for your driver and if you are using
+ nvidiafb, i810fb or savagefb.
+
+ In general, choosing Y for this option is safe. If you
+ experience extremely long delays while booting before you get
+ something on your display, try setting this to N. Matrox cards in
+ combination with certain motherboards and monitors are known to
+ suffer from this problem.
+
config FB
tristate "Support for frame buffer devices"
---help---
@@ -70,22 +85,6 @@ config FB_MACMODES
depends on FB
default n
-config FB_FIRMWARE_EDID
- bool "Enable firmware EDID"
- depends on FB
- default y
- ---help---
- This enables access to the EDID transferred from the firmware.
- On the i386, this is from the Video BIOS. Enable this if DDC/I2C
- transfers do not work for your driver and if you are using
- nvidiafb, i810fb or savagefb.
-
- In general, choosing Y for this option is safe. If you
- experience extremely long delays while booting before you get
- something on your display, try setting this to N. Matrox cards in
- combination with certain motherboards and monitors are known to
- suffer from this problem.
-
config FB_BACKLIGHT
bool
depends on FB
@@ -551,10 +550,14 @@ config FB_VESA
You will get a boot time penguin logo at no additional cost. Please
read <file:Documentation/fb/vesafb.txt>. If unsure, say Y.
-config VIDEO_SELECT
- bool
- depends on FB_VESA
- default y
+config FB_IMAC
+ bool "Intel-based Macintosh Framebuffer Support"
+ depends on (FB = y) && X86
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ help
+ This is the frame buffer device driver for the Intel-based Macintosh
config FB_HGA
tristate "Hercules mono graphics support"
@@ -578,12 +581,6 @@ config FB_HGA_ACCEL
This will compile the Hercules mono graphics with
acceleration functions.
-
-config VIDEO_SELECT
- bool
- depends on (FB = y) && X86
- default y
-
config FB_SGIVW
tristate "SGI Visual Workstation framebuffer support"
depends on FB && X86_VISWS
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 23de3b2c785..c335e9bc3b2 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -4,15 +4,15 @@
# Each configuration option enables a list of files.
-obj-$(CONFIG_VT) += console/
-obj-$(CONFIG_LOGO) += logo/
-obj-$(CONFIG_SYSFS) += backlight/
-
obj-$(CONFIG_FB) += fb.o
fb-y := fbmem.o fbmon.o fbcmap.o fbsysfs.o \
modedb.o fbcvt.o
fb-objs := $(fb-y)
+obj-$(CONFIG_VT) += console/
+obj-$(CONFIG_LOGO) += logo/
+obj-$(CONFIG_SYSFS) += backlight/
+
obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o
obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o
obj-$(CONFIG_FB_CFB_IMAGEBLIT) += cfbimgblt.o
@@ -97,6 +97,7 @@ obj-$(CONFIG_FB_S3C2410) += s3c2410fb.o
# Platform or fallback drivers go here
obj-$(CONFIG_FB_VESA) += vesafb.o
+obj-$(CONFIG_FB_IMAC) += imacfb.o
obj-$(CONFIG_FB_VGA16) += vga16fb.o vgastate.o
obj-$(CONFIG_FB_OF) += offb.o
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index db878fd55fb..11cf7fcb1d5 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -100,7 +100,7 @@
#ifndef CONFIG_PPC_PMAC
/* default mode */
-static struct fb_var_screeninfo default_var __initdata = {
+static struct fb_var_screeninfo default_var __devinitdata = {
/* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
640, 480, 640, 480, 0, 0, 8, 0,
{0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
@@ -123,7 +123,7 @@ static struct fb_var_screeninfo default_var = {
/* default modedb mode */
/* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
-static struct fb_videomode defaultmode __initdata = {
+static struct fb_videomode defaultmode __devinitdata = {
.refresh = 60,
.xres = 640,
.yres = 480,
@@ -335,7 +335,7 @@ static const struct aty128_meminfo sdr_sgram =
static const struct aty128_meminfo ddr_sgram =
{ 4, 4, 3, 3, 2, 3, 1, 16, 31, 16, "64-bit DDR SGRAM" };
-static struct fb_fix_screeninfo aty128fb_fix __initdata = {
+static struct fb_fix_screeninfo aty128fb_fix __devinitdata = {
.id = "ATY Rage128",
.type = FB_TYPE_PACKED_PIXELS,
.visual = FB_VISUAL_PSEUDOCOLOR,
@@ -345,15 +345,15 @@ static struct fb_fix_screeninfo aty128fb_fix __initdata = {
.accel = FB_ACCEL_ATI_RAGE128,
};
-static char *mode_option __initdata = NULL;
+static char *mode_option __devinitdata = NULL;
#ifdef CONFIG_PPC_PMAC
-static int default_vmode __initdata = VMODE_1024_768_60;
-static int default_cmode __initdata = CMODE_8;
+static int default_vmode __devinitdata = VMODE_1024_768_60;
+static int default_cmode __devinitdata = CMODE_8;
#endif
-static int default_crt_on __initdata = 0;
-static int default_lcd_on __initdata = 1;
+static int default_crt_on __devinitdata = 0;
+static int default_lcd_on __devinitdata = 1;
#ifdef CONFIG_MTRR
static int mtrr = 1;
@@ -445,9 +445,9 @@ static int aty128_encode_var(struct fb_var_screeninfo *var,
static int aty128_decode_var(struct fb_var_screeninfo *var,
struct aty128fb_par *par);
#if 0
-static void __init aty128_get_pllinfo(struct aty128fb_par *par,
+static void __devinit aty128_get_pllinfo(struct aty128fb_par *par,
void __iomem *bios);
-static void __init __iomem *aty128_map_ROM(struct pci_dev *pdev, const struct aty128fb_par *par);
+static void __devinit __iomem *aty128_map_ROM(struct pci_dev *pdev, const struct aty128fb_par *par);
#endif
static void aty128_timings(struct aty128fb_par *par);
static void aty128_init_engine(struct aty128fb_par *par);
@@ -573,7 +573,7 @@ static void aty_pll_writeupdate(const struct aty128fb_par *par)
/* write to the scratch register to test r/w functionality */
-static int __init register_test(const struct aty128fb_par *par)
+static int __devinit register_test(const struct aty128fb_par *par)
{
u32 val;
int flag = 0;
@@ -772,7 +772,7 @@ static u32 depth_to_dst(u32 depth)
#ifndef __sparc__
-static void __iomem * __init aty128_map_ROM(const struct aty128fb_par *par, struct pci_dev *dev)
+static void __iomem * __devinit aty128_map_ROM(const struct aty128fb_par *par, struct pci_dev *dev)
{
u16 dptr;
u8 rom_type;
@@ -856,7 +856,7 @@ static void __iomem * __init aty128_map_ROM(const struct aty128fb_par *par, stru
return NULL;
}
-static void __init aty128_get_pllinfo(struct aty128fb_par *par, unsigned char __iomem *bios)
+static void __devinit aty128_get_pllinfo(struct aty128fb_par *par, unsigned char __iomem *bios)
{
unsigned int bios_hdr;
unsigned int bios_pll;
@@ -903,7 +903,7 @@ static void __iomem * __devinit aty128_find_mem_vbios(struct aty128fb_par *par)
#endif /* ndef(__sparc__) */
/* fill in known card constants if pll_block is not available */
-static void __init aty128_timings(struct aty128fb_par *par)
+static void __devinit aty128_timings(struct aty128fb_par *par)
{
#ifdef CONFIG_PPC_OF
/* instead of a table lookup, assume OF has properly
@@ -1645,7 +1645,7 @@ static int aty128fb_sync(struct fb_info *info)
}
#ifndef MODULE
-static int __init aty128fb_setup(char *options)
+static int __devinit aty128fb_setup(char *options)
{
char *this_opt;
@@ -1893,7 +1893,7 @@ static void aty128_early_resume(void *data)
}
#endif /* CONFIG_PPC_PMAC */
-static int __init aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct fb_info *info = pci_get_drvdata(pdev);
struct aty128fb_par *par = info->par;
@@ -2037,7 +2037,7 @@ static int __init aty128_init(struct pci_dev *pdev, const struct pci_device_id *
#ifdef CONFIG_PCI
/* register a card ++ajoshi */
-static int __init aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int __devinit aty128_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
unsigned long fb_addr, reg_addr;
struct aty128fb_par *par;
@@ -2556,7 +2556,7 @@ static int aty128_pci_resume(struct pci_dev *pdev)
}
-static int __init aty128fb_init(void)
+static int __devinit aty128fb_init(void)
{
#ifndef MODULE
char *option = NULL;
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index c5185f7cf4b..22e720611bf 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -316,12 +316,12 @@ static int vram;
static int pll;
static int mclk;
static int xclk;
-static int comp_sync __initdata = -1;
+static int comp_sync __devinitdata = -1;
static char *mode;
#ifdef CONFIG_PPC
-static int default_vmode __initdata = VMODE_CHOOSE;
-static int default_cmode __initdata = CMODE_CHOOSE;
+static int default_vmode __devinitdata = VMODE_CHOOSE;
+static int default_cmode __devinitdata = CMODE_CHOOSE;
module_param_named(vmode, default_vmode, int, 0);
MODULE_PARM_DESC(vmode, "int: video mode for mac");
@@ -330,10 +330,10 @@ MODULE_PARM_DESC(cmode, "int: color mode for mac");
#endif
#ifdef CONFIG_ATARI
-static unsigned int mach64_count __initdata = 0;
-static unsigned long phys_vmembase[FB_MAX] __initdata = { 0, };
-static unsigned long phys_size[FB_MAX] __initdata = { 0, };
-static unsigned long phys_guiregbase[FB_MAX] __initdata = { 0, };
+static unsigned int mach64_count __devinitdata = 0;
+static unsigned long phys_vmembase[FB_MAX] __devinitdata = { 0, };
+static unsigned long phys_size[FB_MAX] __devinitdata = { 0, };
+static unsigned long phys_guiregbase[FB_MAX] __devinitdata = { 0, };
#endif
/* top -> down is an evolution of mach64 chipset, any corrections? */
@@ -583,7 +583,7 @@ static u32 atyfb_get_pixclock(struct fb_var_screeninfo *var, struct atyfb_par *p
* Apple monitor sense
*/
-static int __init read_aty_sense(const struct atyfb_par *par)
+static int __devinit read_aty_sense(const struct atyfb_par *par)
{
int sense, i;
@@ -1281,6 +1281,14 @@ static int atyfb_set_par(struct fb_info *info)
par->accel_flags = var->accel_flags; /* hack */
+ if (var->accel_flags) {
+ info->fbops->fb_sync = atyfb_sync;
+ info->flags &= ~FBINFO_HWACCEL_DISABLED;
+ } else {
+ info->fbops->fb_sync = NULL;
+ info->flags |= FBINFO_HWACCEL_DISABLED;
+ }
+
if (par->blitter_may_be_busy)
wait_for_idle(par);
@@ -2253,7 +2261,7 @@ static void aty_bl_exit(struct atyfb_par *par)
#endif /* CONFIG_FB_ATY_BACKLIGHT */
-static void __init aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
+static void __devinit aty_calc_mem_refresh(struct atyfb_par *par, int xclk)
{
const int ragepro_tbl[] = {
44, 50, 55, 66, 75, 80, 100
@@ -2313,7 +2321,7 @@ static int __devinit atyfb_get_timings_from_lcd(struct atyfb_par *par,
}
#endif /* defined(__i386__) && defined(CONFIG_FB_ATY_GENERIC_LCD) */
-static int __init aty_init(struct fb_info *info, const char *name)
+static int __devinit aty_init(struct fb_info *info, const char *name)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
const char *ramname = NULL, *xtal;
@@ -2394,12 +2402,15 @@ static int __init aty_init(struct fb_info *info, const char *name)
break;
}
switch (clk_type) {
+#ifdef CONFIG_ATARI
case CLK_ATI18818_1:
par->pll_ops = &aty_pll_ati18818_1;
break;
+#else
case CLK_IBMRGB514:
par->pll_ops = &aty_pll_ibm514;
break;
+#endif
#if 0 /* dead code */
case CLK_STG1703:
par->pll_ops = &aty_pll_stg1703;
@@ -2604,7 +2615,11 @@ static int __init aty_init(struct fb_info *info, const char *name)
info->fbops = &atyfb_ops;
info->pseudo_palette = pseudo_palette;
- info->flags = FBINFO_FLAG_DEFAULT;
+ info->flags = FBINFO_DEFAULT |
+ FBINFO_HWACCEL_IMAGEBLIT |
+ FBINFO_HWACCEL_FILLRECT |
+ FBINFO_HWACCEL_COPYAREA |
+ FBINFO_HWACCEL_YPAN;
#ifdef CONFIG_PMAC_BACKLIGHT
if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
@@ -2733,7 +2748,7 @@ aty_init_exit:
}
#ifdef CONFIG_ATARI
-static int __init store_video_par(char *video_str, unsigned char m64_num)
+static int __devinit store_video_par(char *video_str, unsigned char m64_num)
{
char *p;
unsigned long vmembase, size, guiregbase;
@@ -3764,7 +3779,7 @@ static struct pci_driver atyfb_driver = {
#endif /* CONFIG_PCI */
#ifndef MODULE
-static int __init atyfb_setup(char *options)
+static int __devinit atyfb_setup(char *options)
{
char *this_opt;
@@ -3836,7 +3851,7 @@ static int __init atyfb_setup(char *options)
}
#endif /* MODULE */
-static int __init atyfb_init(void)
+static int __devinit atyfb_init(void)
{
#ifndef MODULE
char *option = NULL;
diff --git a/drivers/video/aty/mach64_accel.c b/drivers/video/aty/mach64_accel.c
index c98f4a44213..1490e5e1c23 100644
--- a/drivers/video/aty/mach64_accel.c
+++ b/drivers/video/aty/mach64_accel.c
@@ -200,8 +200,6 @@ void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
if (!area->width || !area->height)
return;
if (!par->accel_flags) {
- if (par->blitter_may_be_busy)
- wait_for_idle(par);
cfb_copyarea(info, area);
return;
}
@@ -248,8 +246,6 @@ void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
if (!rect->width || !rect->height)
return;
if (!par->accel_flags) {
- if (par->blitter_may_be_busy)
- wait_for_idle(par);
cfb_fillrect(info, rect);
return;
}
@@ -288,14 +284,10 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
return;
if (!par->accel_flags ||
(image->depth != 1 && info->var.bits_per_pixel != image->depth)) {
- if (par->blitter_may_be_busy)
- wait_for_idle(par);
-
cfb_imageblit(info, image);
return;
}
- wait_for_idle(par);
pix_width = pix_width_save = aty_ld_le32(DP_PIX_WIDTH, par);
host_cntl = aty_ld_le32(HOST_CNTL, par) | HOST_BYTE_ALIGN;
@@ -425,8 +417,6 @@ void atyfb_imageblit(struct fb_info *info, const struct fb_image *image)
}
}
- wait_for_idle(par);
-
/* restore pix_width */
wait_for_fifo(1, par);
aty_st_le32(DP_PIX_WIDTH, pix_width_save, par);
diff --git a/drivers/video/aty/mach64_cursor.c b/drivers/video/aty/mach64_cursor.c
index ad8b7496f85..2a7f381c330 100644
--- a/drivers/video/aty/mach64_cursor.c
+++ b/drivers/video/aty/mach64_cursor.c
@@ -66,11 +66,6 @@ static const u8 cursor_bits_lookup[16] = {
0x01, 0x41, 0x11, 0x51, 0x05, 0x45, 0x15, 0x55
};
-static const u8 cursor_mask_lookup[16] = {
- 0xaa, 0x2a, 0x8a, 0x0a, 0xa2, 0x22, 0x82, 0x02,
- 0xa8, 0x28, 0x88, 0x08, 0xa0, 0x20, 0x80, 0x00
-};
-
static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
struct atyfb_par *par = (struct atyfb_par *) info->par;
@@ -130,13 +125,13 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
fg_idx = cursor->image.fg_color;
bg_idx = cursor->image.bg_color;
- fg = (info->cmap.red[fg_idx] << 24) |
- (info->cmap.green[fg_idx] << 16) |
- (info->cmap.blue[fg_idx] << 8) | 15;
+ fg = ((info->cmap.red[fg_idx] & 0xff) << 24) |
+ ((info->cmap.green[fg_idx] & 0xff) << 16) |
+ ((info->cmap.blue[fg_idx] & 0xff) << 8) | 0xff;
- bg = (info->cmap.red[bg_idx] << 24) |
- (info->cmap.green[bg_idx] << 16) |
- (info->cmap.blue[bg_idx] << 8);
+ bg = ((info->cmap.red[bg_idx] & 0xff) << 24) |
+ ((info->cmap.green[bg_idx] & 0xff) << 16) |
+ ((info->cmap.blue[bg_idx] & 0xff) << 8);
wait_for_fifo(2, par);
aty_st_le32(CUR_CLR0, bg, par);
@@ -166,19 +161,17 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
switch (cursor->rop) {
case ROP_XOR:
// Upper 4 bits of mask data
- fb_writeb(cursor_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b ^ m) >> 4], dst++);
+ fb_writeb(cursor_bits_lookup[(b ^ m) >> 4], dst++);
// Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b ^ m) & 0x0f], dst++);
+ fb_writeb(cursor_bits_lookup[(b ^ m) & 0x0f],
+ dst++);
break;
case ROP_COPY:
// Upper 4 bits of mask data
- fb_writeb(cursor_mask_lookup[m >> 4 ] |
- cursor_bits_lookup[(b & m) >> 4], dst++);
+ fb_writeb(cursor_bits_lookup[(b & m) >> 4], dst++);
// Lower 4 bits of mask
- fb_writeb(cursor_mask_lookup[m & 0x0f ] |
- cursor_bits_lookup[(b & m) & 0x0f], dst++);
+ fb_writeb(cursor_bits_lookup[(b & m) & 0x0f],
+ dst++);
break;
}
}
@@ -194,7 +187,7 @@ static int atyfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
return 0;
}
-int __init aty_init_cursor(struct fb_info *info)
+int __devinit aty_init_cursor(struct fb_info *info)
{
unsigned long addr;
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index c5ecbb02e01..68b15645b89 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -2379,7 +2379,6 @@ err_release_pci0:
err_release_fb:
framebuffer_release(info);
err_disable:
- pci_disable_device(pdev);
err_out:
return ret;
}
@@ -2436,7 +2435,6 @@ static void __devexit radeonfb_pci_unregister (struct pci_dev *pdev)
#endif
fb_dealloc_cmap(&info->cmap);
framebuffer_release(info);
- pci_disable_device(pdev);
}
diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
index 789450bb0bc..d63c3f48585 100644
--- a/drivers/video/au1100fb.c
+++ b/drivers/video/au1100fb.c
@@ -7,6 +7,8 @@
* Karl Lessard <klessard@sunrisetelecom.com>
* <c.pellegrin@exadron.com>
*
+ * PM support added by Rodolfo Giometti <giometti@linux.it>
+ *
* Copyright 2002 MontaVista Software
* Author: MontaVista Software, Inc.
* ppopov@mvista.com or source@mvista.com
@@ -602,17 +604,52 @@ int au1100fb_drv_remove(struct device *dev)
return 0;
}
+#ifdef CONFIG_PM
+static u32 sys_clksrc;
+static struct au1100fb_regs fbregs;
+
int au1100fb_drv_suspend(struct device *dev, pm_message_t state)
{
- /* TODO */
+ struct au1100fb_device *fbdev = dev_get_drvdata(dev);
+
+ if (!fbdev)
+ return 0;
+
+ /* Save the clock source state */
+ sys_clksrc = au_readl(SYS_CLKSRC);
+
+ /* Blank the LCD */
+ au1100fb_fb_blank(VESA_POWERDOWN, &fbdev->info);
+
+ /* Stop LCD clocking */
+ au_writel(sys_clksrc & ~SYS_CS_ML_MASK, SYS_CLKSRC);
+
+ memcpy(&fbregs, fbdev->regs, sizeof(struct au1100fb_regs));
+
return 0;
}
int au1100fb_drv_resume(struct device *dev)
{
- /* TODO */
+ struct au1100fb_device *fbdev = dev_get_drvdata(dev);
+
+ if (!fbdev)
+ return 0;
+
+ memcpy(fbdev->regs, &fbregs, sizeof(struct au1100fb_regs));
+
+ /* Restart LCD clocking */
+ au_writel(sys_clksrc, SYS_CLKSRC);
+
+ /* Unblank the LCD */
+ au1100fb_fb_blank(VESA_NO_BLANKING, &fbdev->info);
+
return 0;
}
+#else
+#define au1100fb_drv_suspend NULL
+#define au1100fb_drv_resume NULL
+#endif
static struct device_driver au1100fb_driver = {
.name = "au1100-lcd",
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index b895eaaa73f..022f9d3473f 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -10,7 +10,7 @@ menuconfig BACKLIGHT_LCD_SUPPORT
config BACKLIGHT_CLASS_DEVICE
tristate "Lowlevel Backlight controls"
- depends on BACKLIGHT_LCD_SUPPORT
+ depends on BACKLIGHT_LCD_SUPPORT && FB
default m
help
This framework adds support for low-level control of the LCD
@@ -26,7 +26,7 @@ config BACKLIGHT_DEVICE
config LCD_CLASS_DEVICE
tristate "Lowlevel LCD controls"
- depends on BACKLIGHT_LCD_SUPPORT
+ depends on BACKLIGHT_LCD_SUPPORT && FB
default m
help
This framework adds support for low-level control of LCD.
@@ -50,6 +50,14 @@ config BACKLIGHT_CORGI
If you have a Sharp Zaurus SL-C7xx, SL-Cxx00 or SL-6000x say y to enable the
backlight driver.
+config BACKLIGHT_LOCOMO
+ tristate "Sharp LOCOMO LCD/Backlight Driver"
+ depends on BACKLIGHT_DEVICE && SHARP_LOCOMO
+ default y
+ help
+ If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to
+ enable the LCD/backlight driver.
+
config BACKLIGHT_HP680
tristate "HP Jornada 680 Backlight Driver"
depends on BACKLIGHT_DEVICE && SH_HP6XX
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 744210c38e7..65e5553fc84 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -4,4 +4,4 @@ obj-$(CONFIG_LCD_CLASS_DEVICE) += lcd.o
obj-$(CONFIG_BACKLIGHT_CLASS_DEVICE) += backlight.o
obj-$(CONFIG_BACKLIGHT_CORGI) += corgi_bl.o
obj-$(CONFIG_BACKLIGHT_HP680) += hp680_bl.o
-obj-$(CONFIG_SHARP_LOCOMO) += locomolcd.o
+obj-$(CONFIG_BACKLIGHT_LOCOMO) += locomolcd.o
diff --git a/drivers/video/backlight/locomolcd.c b/drivers/video/backlight/locomolcd.c
index 60831bb2368..bd879b7ec11 100644
--- a/drivers/video/backlight/locomolcd.c
+++ b/drivers/video/backlight/locomolcd.c
@@ -17,6 +17,8 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/interrupt.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
#include <asm/hardware/locomo.h>
#include <asm/irq.h>
@@ -25,7 +27,10 @@
#include "../../../arch/arm/mach-sa1100/generic.h"
+static struct backlight_device *locomolcd_bl_device;
static struct locomo_dev *locomolcd_dev;
+static unsigned long locomolcd_flags;
+#define LOCOMOLCD_SUSPENDED 0x01
static void locomolcd_on(int comadj)
{
@@ -89,12 +94,10 @@ void locomolcd_power(int on)
}
/* read comadj */
- if (comadj == -1) {
- if (machine_is_poodle())
- comadj = 118;
- if (machine_is_collie())
- comadj = 128;
- }
+ if (comadj == -1 && machine_is_collie())
+ comadj = 128;
+ if (comadj == -1 && machine_is_poodle())
+ comadj = 118;
if (on)
locomolcd_on(comadj);
@@ -105,26 +108,100 @@ void locomolcd_power(int on)
}
EXPORT_SYMBOL(locomolcd_power);
-static int poodle_lcd_probe(struct locomo_dev *dev)
+
+static int current_intensity;
+
+static int locomolcd_set_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props->brightness;
+
+ if (bd->props->power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props->fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (locomolcd_flags & LOCOMOLCD_SUSPENDED)
+ intensity = 0;
+
+ switch (intensity) {
+ /* AC and non-AC are handled differently, but produce same results in sharp code? */
+ case 0: locomo_frontlight_set(locomolcd_dev, 0, 0, 161); break;
+ case 1: locomo_frontlight_set(locomolcd_dev, 117, 0, 161); break;
+ case 2: locomo_frontlight_set(locomolcd_dev, 163, 0, 148); break;
+ case 3: locomo_frontlight_set(locomolcd_dev, 194, 0, 161); break;
+ case 4: locomo_frontlight_set(locomolcd_dev, 194, 1, 161); break;
+
+ default:
+ return -ENODEV;
+ }
+ current_intensity = intensity;
+ return 0;
+}
+
+static int locomolcd_get_intensity(struct backlight_device *bd)
+{
+ return current_intensity;
+}
+
+static struct backlight_properties locomobl_data = {
+ .owner = THIS_MODULE,
+ .get_brightness = locomolcd_get_intensity,
+ .update_status = locomolcd_set_intensity,
+ .max_brightness = 4,
+};
+
+#ifdef CONFIG_PM
+static int locomolcd_suspend(struct locomo_dev *dev, pm_message_t state)
+{
+ locomolcd_flags |= LOCOMOLCD_SUSPENDED;
+ locomolcd_set_intensity(locomolcd_bl_device);
+ return 0;
+}
+
+static int locomolcd_resume(struct locomo_dev *dev)
+{
+ locomolcd_flags &= ~LOCOMOLCD_SUSPENDED;
+ locomolcd_set_intensity(locomolcd_bl_device);
+ return 0;
+}
+#else
+#define locomolcd_suspend NULL
+#define locomolcd_resume NULL
+#endif
+
+static int locomolcd_probe(struct locomo_dev *dev)
{
unsigned long flags;
local_irq_save(flags);
locomolcd_dev = dev;
+ locomo_gpio_set_dir(dev, LOCOMO_GPIO_FL_VR, 0);
+
/* the poodle_lcd_power function is called for the first time
* from fs_initcall, which is before locomo is activated.
* We need to recall poodle_lcd_power here*/
-#ifdef CONFIG_MACH_POODLE
- locomolcd_power(1);
-#endif
+ if (machine_is_poodle())
+ locomolcd_power(1);
+
local_irq_restore(flags);
+
+ locomolcd_bl_device = backlight_device_register("locomo-bl", NULL, &locomobl_data);
+
+ if (IS_ERR (locomolcd_bl_device))
+ return PTR_ERR (locomolcd_bl_device);
+
+ /* Set up frontlight so that screen is readable */
+ locomobl_data.brightness = 2;
+ locomolcd_set_intensity(locomolcd_bl_device);
+
return 0;
}
-static int poodle_lcd_remove(struct locomo_dev *dev)
+static int locomolcd_remove(struct locomo_dev *dev)
{
unsigned long flags;
+
+ backlight_device_unregister(locomolcd_bl_device);
local_irq_save(flags);
locomolcd_dev = NULL;
local_irq_restore(flags);
@@ -136,19 +213,33 @@ static struct locomo_driver poodle_lcd_driver = {
.name = "locomo-backlight",
},
.devid = LOCOMO_DEVID_BACKLIGHT,
- .probe = poodle_lcd_probe,
- .remove = poodle_lcd_remove,
+ .probe = locomolcd_probe,
+ .remove = locomolcd_remove,
+ .suspend = locomolcd_suspend,
+ .resume = locomolcd_resume,
};
-static int __init poodle_lcd_init(void)
+
+static int __init locomolcd_init(void)
{
int ret = locomo_driver_register(&poodle_lcd_driver);
- if (ret) return ret;
+ if (ret)
+ return ret;
#ifdef CONFIG_SA1100_COLLIE
sa1100fb_lcd_power = locomolcd_power;
#endif
return 0;
}
-device_initcall(poodle_lcd_init);
+static void __exit locomolcd_exit(void)
+{
+ locomo_driver_unregister(&poodle_lcd_driver);
+}
+
+module_init(locomolcd_init);
+module_exit(locomolcd_exit);
+
+MODULE_AUTHOR("John Lenz <lenz@cs.wisc.edu>, Pavel Machek <pavel@suse.cz>");
+MODULE_DESCRIPTION("Collie LCD driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/cfbimgblt.c b/drivers/video/cfbimgblt.c
index 8ba6152db2f..ad8a89bf8ea 100644
--- a/drivers/video/cfbimgblt.c
+++ b/drivers/video/cfbimgblt.c
@@ -230,6 +230,7 @@ static inline void fast_imageblit(const struct fb_image *image, struct fb_info *
tab = cfb_tab16;
break;
case 32:
+ default:
tab = cfb_tab32;
break;
}
diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index 1103010af54..dda240eb736 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -2227,7 +2227,6 @@ static void cirrusfb_pci_unmap (struct cirrusfb_info *cinfo)
release_region(0x3C0, 32);
pci_release_regions(pdev);
framebuffer_release(cinfo->info);
- pci_disable_device(pdev);
}
#endif /* CONFIG_PCI */
@@ -2458,7 +2457,6 @@ err_release_regions:
err_release_fb:
framebuffer_release(info);
err_disable:
- pci_disable_device(pdev);
err_out:
return ret;
}
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 47ba1a79adc..5dc4083552d 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -125,6 +125,8 @@ static int softback_lines;
static int first_fb_vc;
static int last_fb_vc = MAX_NR_CONSOLES - 1;
static int fbcon_is_default = 1;
+static int fbcon_has_exited;
+
/* font data */
static char fontname[40];
@@ -140,7 +142,6 @@ static const struct consw fb_con;
#define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row)
-static void fbcon_free_font(struct display *);
static int fbcon_set_origin(struct vc_data *);
#define CURSOR_DRAW_DELAY (1)
@@ -194,6 +195,9 @@ static void fbcon_redraw_move(struct vc_data *vc, struct display *p,
int line, int count, int dy);
static void fbcon_modechanged(struct fb_info *info);
static void fbcon_set_all_vcs(struct fb_info *info);
+static void fbcon_start(void);
+static void fbcon_exit(void);
+static struct class_device *fbcon_class_device;
#ifdef CONFIG_MAC
/*
@@ -252,7 +256,7 @@ static void fbcon_rotate_all(struct fb_info *info, u32 rotate)
if (!ops || ops->currcon < 0 || rotate > 3)
return;
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
vc = vc_cons[i].d;
if (!vc || vc->vc_mode != KD_TEXT ||
registered_fb[con2fb_map[i]] != info)
@@ -389,15 +393,18 @@ static void fb_flashcursor(void *private)
int c;
int mode;
- if (ops->currcon != -1)
+ acquire_console_sem();
+ if (ops && ops->currcon != -1)
vc = vc_cons[ops->currcon].d;
if (!vc || !CON_IS_VISIBLE(vc) ||
fbcon_is_inactive(vc, info) ||
registered_fb[con2fb_map[vc->vc_num]] != info ||
- vc_cons[ops->currcon].d->vc_deccm != 1)
+ vc_cons[ops->currcon].d->vc_deccm != 1) {
+ release_console_sem();
return;
- acquire_console_sem();
+ }
+
p = &fb_display[vc->vc_num];
c = scr_readw((u16 *) vc->vc_pos);
mode = (!ops->cursor_flash || ops->cursor_state.enable) ?
@@ -528,7 +535,7 @@ static int search_fb_in_map(int idx)
{
int i, retval = 0;
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map[i] == idx)
retval = 1;
}
@@ -539,7 +546,7 @@ static int search_for_mapped_con(void)
{
int i, retval = 0;
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map[i] != -1)
retval = 1;
}
@@ -561,6 +568,7 @@ static int fbcon_takeover(int show_logo)
err = take_over_console(&fb_con, first_fb_vc, last_fb_vc,
fbcon_is_default);
+
if (err) {
for (i = first_fb_vc; i <= last_fb_vc; i++) {
con2fb_map[i] = -1;
@@ -795,8 +803,8 @@ static int set_con2fb_map(int unit, int newidx, int user)
if (oldidx == newidx)
return 0;
- if (!info)
- err = -EINVAL;
+ if (!info || fbcon_has_exited)
+ return -EINVAL;
if (!err && !search_for_mapped_con()) {
info_idx = newidx;
@@ -832,6 +840,9 @@ static int set_con2fb_map(int unit, int newidx, int user)
con2fb_init_display(vc, info, unit, show_logo);
}
+ if (!search_fb_in_map(info_idx))
+ info_idx = newidx;
+
release_console_sem();
return err;
}
@@ -1034,6 +1045,7 @@ static const char *fbcon_startup(void)
#endif /* CONFIG_MAC */
fbcon_add_cursor_timer(info);
+ fbcon_has_exited = 0;
return display_desc;
}
@@ -1061,17 +1073,36 @@ static void fbcon_init(struct vc_data *vc, int init)
/* If we are not the first console on this
fb, copy the font from that console */
- t = &fb_display[svc->vc_num];
- if (!vc->vc_font.data) {
- vc->vc_font.data = (void *)(p->fontdata = t->fontdata);
- vc->vc_font.width = (*default_mode)->vc_font.width;
- vc->vc_font.height = (*default_mode)->vc_font.height;
- p->userfont = t->userfont;
- if (p->userfont)
- REFCOUNT(p->fontdata)++;
+ t = &fb_display[fg_console];
+ if (!p->fontdata) {
+ if (t->fontdata) {
+ struct vc_data *fvc = vc_cons[fg_console].d;
+
+ vc->vc_font.data = (void *)(p->fontdata =
+ fvc->vc_font.data);
+ vc->vc_font.width = fvc->vc_font.width;
+ vc->vc_font.height = fvc->vc_font.height;
+ p->userfont = t->userfont;
+
+ if (p->userfont)
+ REFCOUNT(p->fontdata)++;
+ } else {
+ const struct font_desc *font = NULL;
+
+ if (!fontname[0] || !(font = find_font(fontname)))
+ font = get_default_font(info->var.xres,
+ info->var.yres);
+ vc->vc_font.width = font->width;
+ vc->vc_font.height = font->height;
+ vc->vc_font.data = (void *)(p->fontdata = font->data);
+ vc->vc_font.charcount = 256; /* FIXME Need to
+ support more fonts */
+ }
}
+
if (p->userfont)
charcnt = FNTCHARCNT(p->fontdata);
+
vc->vc_can_do_color = (fb_get_color_depth(&info->var, &info->fix)!=1);
vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800;
if (charcnt == 256) {
@@ -1145,13 +1176,47 @@ static void fbcon_init(struct vc_data *vc, int init)
ops->p = &fb_display[fg_console];
}
+static void fbcon_free_font(struct display *p)
+{
+ if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0))
+ kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int));
+ p->fontdata = NULL;
+ p->userfont = 0;
+}
+
static void fbcon_deinit(struct vc_data *vc)
{
struct display *p = &fb_display[vc->vc_num];
+ struct fb_info *info;
+ struct fbcon_ops *ops;
+ int idx;
- if (info_idx != -1)
- return;
fbcon_free_font(p);
+ idx = con2fb_map[vc->vc_num];
+
+ if (idx == -1)
+ goto finished;
+
+ info = registered_fb[idx];
+
+ if (!info)
+ goto finished;
+
+ ops = info->fbcon_par;
+
+ if (!ops)
+ goto finished;
+
+ if (CON_IS_VISIBLE(vc))
+ fbcon_del_cursor_timer(info);
+
+ ops->flags &= ~FBCON_FLAGS_INIT;
+finished:
+
+ if (!con_is_bound(&fb_con))
+ fbcon_exit();
+
+ return;
}
/* ====================================================================== */
@@ -2099,12 +2164,11 @@ static int fbcon_switch(struct vc_data *vc)
if (info->fbops->fb_set_par)
info->fbops->fb_set_par(info);
- if (old_info != info) {
+ if (old_info != info)
fbcon_del_cursor_timer(old_info);
- fbcon_add_cursor_timer(info);
- }
}
+ fbcon_add_cursor_timer(info);
set_blitting_type(vc, info);
ops->cursor_reset = 1;
@@ -2222,14 +2286,6 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
return 0;
}
-static void fbcon_free_font(struct display *p)
-{
- if (p->userfont && p->fontdata && (--REFCOUNT(p->fontdata) == 0))
- kfree(p->fontdata - FONT_EXTRA_WORDS * sizeof(int));
- p->fontdata = NULL;
- p->userfont = 0;
-}
-
static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
{
u8 *fontdata = vc->vc_font.data;
@@ -2443,7 +2499,7 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigne
FNTSUM(new_data) = csum;
/* Check if the same font is on some other console already */
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
struct vc_data *tmp = vc_cons[i].d;
if (fb_display[i].userfont &&
@@ -2768,7 +2824,7 @@ static void fbcon_set_all_vcs(struct fb_info *info)
if (!ops || ops->currcon < 0)
return;
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
vc = vc_cons[i].d;
if (!vc || vc->vc_mode != KD_TEXT ||
registered_fb[con2fb_map[i]] != info)
@@ -2830,22 +2886,57 @@ static int fbcon_mode_deleted(struct fb_info *info,
return found;
}
+static int fbcon_fb_unregistered(int idx)
+{
+ int i;
+
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
+ if (con2fb_map[i] == idx)
+ con2fb_map[i] = -1;
+ }
+
+ if (idx == info_idx) {
+ info_idx = -1;
+
+ for (i = 0; i < FB_MAX; i++) {
+ if (registered_fb[i] != NULL) {
+ info_idx = i;
+ break;
+ }
+ }
+ }
+
+ if (info_idx != -1) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
+ if (con2fb_map[i] == -1)
+ con2fb_map[i] = info_idx;
+ }
+ }
+
+ if (!num_registered_fb)
+ unregister_con_driver(&fb_con);
+
+ return 0;
+}
+
static int fbcon_fb_registered(int idx)
{
int ret = 0, i;
if (info_idx == -1) {
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (con2fb_map_boot[i] == idx) {
info_idx = idx;
break;
}
}
+
if (info_idx != -1)
ret = fbcon_takeover(1);
} else {
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
- if (con2fb_map_boot[i] == idx)
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
+ if (con2fb_map_boot[i] == idx &&
+ con2fb_map[i] == -1)
set_con2fb_map(i, idx, 0);
}
}
@@ -2882,7 +2973,7 @@ static void fbcon_new_modelist(struct fb_info *info)
struct fb_var_screeninfo var;
struct fb_videomode *mode;
- for (i = 0; i < MAX_NR_CONSOLES; i++) {
+ for (i = first_fb_vc; i <= last_fb_vc; i++) {
if (registered_fb[con2fb_map[i]] != info)
continue;
if (!fb_display[i].mode)
@@ -2910,6 +3001,14 @@ static int fbcon_event_notify(struct notifier_block *self,
struct fb_con2fbmap *con2fb;
int ret = 0;
+ /*
+ * ignore all events except driver registration and deregistration
+ * if fbcon is not active
+ */
+ if (fbcon_has_exited && !(action == FB_EVENT_FB_REGISTERED ||
+ action == FB_EVENT_FB_UNREGISTERED))
+ goto done;
+
switch(action) {
case FB_EVENT_SUSPEND:
fbcon_suspended(info);
@@ -2930,6 +3029,9 @@ static int fbcon_event_notify(struct notifier_block *self,
case FB_EVENT_FB_REGISTERED:
ret = fbcon_fb_registered(info->node);
break;
+ case FB_EVENT_FB_UNREGISTERED:
+ ret = fbcon_fb_unregistered(info->node);
+ break;
case FB_EVENT_SET_CONSOLE_MAP:
con2fb = event->data;
ret = set_con2fb_map(con2fb->console - 1,
@@ -2945,16 +3047,9 @@ static int fbcon_event_notify(struct notifier_block *self,
case FB_EVENT_NEW_MODELIST:
fbcon_new_modelist(info);
break;
- case FB_EVENT_SET_CON_ROTATE:
- fbcon_rotate(info, *(int *)event->data);
- break;
- case FB_EVENT_GET_CON_ROTATE:
- ret = fbcon_get_rotate(info);
- break;
- case FB_EVENT_SET_CON_ROTATE_ALL:
- fbcon_rotate_all(info, *(int *)event->data);
}
+done:
return ret;
}
@@ -2992,27 +3087,181 @@ static struct notifier_block fbcon_event_notifier = {
.notifier_call = fbcon_event_notify,
};
-static int __init fb_console_init(void)
+static ssize_t store_rotate(struct class_device *class_device,
+ const char *buf, size_t count)
{
- int i;
+ struct fb_info *info;
+ int rotate, idx;
+ char **last = NULL;
+
+ if (fbcon_has_exited)
+ return count;
acquire_console_sem();
- fb_register_client(&fbcon_event_notifier);
+ idx = con2fb_map[fg_console];
+
+ if (idx == -1 || registered_fb[idx] == NULL)
+ goto err;
+
+ info = registered_fb[idx];
+ rotate = simple_strtoul(buf, last, 0);
+ fbcon_rotate(info, rotate);
+err:
release_console_sem();
+ return count;
+}
- for (i = 0; i < MAX_NR_CONSOLES; i++)
- con2fb_map[i] = -1;
+static ssize_t store_rotate_all(struct class_device *class_device,
+ const char *buf, size_t count)
+{
+ struct fb_info *info;
+ int rotate, idx;
+ char **last = NULL;
+
+ if (fbcon_has_exited)
+ return count;
+
+ acquire_console_sem();
+ idx = con2fb_map[fg_console];
+
+ if (idx == -1 || registered_fb[idx] == NULL)
+ goto err;
+ info = registered_fb[idx];
+ rotate = simple_strtoul(buf, last, 0);
+ fbcon_rotate_all(info, rotate);
+err:
+ release_console_sem();
+ return count;
+}
+
+static ssize_t show_rotate(struct class_device *class_device, char *buf)
+{
+ struct fb_info *info;
+ int rotate = 0, idx;
+
+ if (fbcon_has_exited)
+ return 0;
+
+ acquire_console_sem();
+ idx = con2fb_map[fg_console];
+
+ if (idx == -1 || registered_fb[idx] == NULL)
+ goto err;
+
+ info = registered_fb[idx];
+ rotate = fbcon_get_rotate(info);
+err:
+ release_console_sem();
+ return snprintf(buf, PAGE_SIZE, "%d\n", rotate);
+}
+
+static struct class_device_attribute class_device_attrs[] = {
+ __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
+ __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all),
+};
+
+static int fbcon_init_class_device(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
+ class_device_create_file(fbcon_class_device,
+ &class_device_attrs[i]);
+ return 0;
+}
+
+static void fbcon_start(void)
+{
if (num_registered_fb) {
+ int i;
+
+ acquire_console_sem();
+
for (i = 0; i < FB_MAX; i++) {
if (registered_fb[i] != NULL) {
info_idx = i;
break;
}
}
+
+ release_console_sem();
fbcon_takeover(0);
}
+}
+
+static void fbcon_exit(void)
+{
+ struct fb_info *info;
+ int i, j, mapped;
+
+ if (fbcon_has_exited)
+ return;
+
+#ifdef CONFIG_ATARI
+ free_irq(IRQ_AUTO_4, fbcon_vbl_handler);
+#endif
+#ifdef CONFIG_MAC
+ if (MACH_IS_MAC && vbl_detected)
+ free_irq(IRQ_MAC_VBL, fbcon_vbl_handler);
+#endif
+
+ kfree((void *)softback_buf);
+ softback_buf = 0UL;
+
+ for (i = 0; i < FB_MAX; i++) {
+ mapped = 0;
+ info = registered_fb[i];
+
+ if (info == NULL)
+ continue;
+
+ for (j = first_fb_vc; j <= last_fb_vc; j++) {
+ if (con2fb_map[j] == i)
+ mapped = 1;
+ }
+
+ if (mapped) {
+ if (info->fbops->fb_release)
+ info->fbops->fb_release(info, 0);
+ module_put(info->fbops->owner);
+
+ if (info->fbcon_par) {
+ fbcon_del_cursor_timer(info);
+ kfree(info->fbcon_par);
+ info->fbcon_par = NULL;
+ }
+ if (info->queue.func == fb_flashcursor)
+ info->queue.func = NULL;
+ }
+ }
+
+ fbcon_has_exited = 1;
+}
+
+static int __init fb_console_init(void)
+{
+ int i;
+
+ acquire_console_sem();
+ fb_register_client(&fbcon_event_notifier);
+ fbcon_class_device =
+ class_device_create(fb_class, NULL, MKDEV(0, 0), NULL, "fbcon");
+
+ if (IS_ERR(fbcon_class_device)) {
+ printk(KERN_WARNING "Unable to create class_device "
+ "for fbcon; errno = %ld\n",
+ PTR_ERR(fbcon_class_device));
+ fbcon_class_device = NULL;
+ } else
+ fbcon_init_class_device();
+
+ for (i = 0; i < MAX_NR_CONSOLES; i++)
+ con2fb_map[i] = -1;
+
+ release_console_sem();
+ fbcon_start();
return 0;
}
@@ -3020,12 +3269,24 @@ module_init(fb_console_init);
#ifdef MODULE
+static void __exit fbcon_deinit_class_device(void)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(class_device_attrs); i++)
+ class_device_remove_file(fbcon_class_device,
+ &class_device_attrs[i]);
+}
+
static void __exit fb_console_exit(void)
{
acquire_console_sem();
fb_unregister_client(&fbcon_event_notifier);
+ fbcon_deinit_class_device();
+ class_device_destroy(fb_class, MKDEV(0, 0));
+ fbcon_exit();
release_console_sem();
- give_up_console(&fb_con);
+ unregister_con_driver(&fb_con);
}
module_exit(fb_console_exit);
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index c38c3d8e7a7..3487a636370 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -175,6 +175,7 @@ extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info);
#endif
extern void fbcon_set_bitops(struct fbcon_ops *ops);
extern int soft_cursor(struct fb_info *info, struct fb_cursor *cursor);
+extern struct class *fb_class;
#define FBCON_ATTRIBUTE_UNDERLINE 1
#define FBCON_ATTRIBUTE_REVERSE 2
diff --git a/drivers/video/console/mdacon.c b/drivers/video/console/mdacon.c
index 7f939d066a5..c89f90edf8a 100644
--- a/drivers/video/console/mdacon.c
+++ b/drivers/video/console/mdacon.c
@@ -308,7 +308,7 @@ static void __init mda_initialize(void)
outb_p(0x00, mda_gfx_port);
}
-static const char __init *mdacon_startup(void)
+static const char *mdacon_startup(void)
{
mda_num_columns = 80;
mda_num_lines = 25;
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index e99fe30e568..03041311711 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -51,6 +51,7 @@ static int topscan;
static int xcurs_correction = 29;
static int newport_xsize;
static int newport_ysize;
+static int newport_has_init;
static int newport_set_def_font(int unit, struct console_font *op);
@@ -283,6 +284,15 @@ static void newport_get_revisions(void)
xcurs_correction = 21;
}
+static void newport_exit(void)
+{
+ int i;
+
+ /* free memory used by user font */
+ for (i = 0; i < MAX_NR_CONSOLES; i++)
+ newport_set_def_font(i, NULL);
+}
+
/* Can't be __init, take_over_console may call it later */
static const char *newport_startup(void)
{
@@ -290,8 +300,10 @@ static const char *newport_startup(void)
if (!sgi_gfxaddr)
return NULL;
- npregs = (struct newport_regs *) /* ioremap cannot fail */
- ioremap(sgi_gfxaddr, sizeof(struct newport_regs));
+
+ if (!npregs)
+ npregs = (struct newport_regs *)/* ioremap cannot fail */
+ ioremap(sgi_gfxaddr, sizeof(struct newport_regs));
npregs->cset.config = NPORT_CFG_GD0;
if (newport_wait(npregs))
@@ -307,11 +319,11 @@ static const char *newport_startup(void)
newport_reset();
newport_get_revisions();
newport_get_screensize();
+ newport_has_init = 1;
return "SGI Newport";
out_unmap:
- iounmap((void *)npregs);
return NULL;
}
@@ -324,11 +336,10 @@ static void newport_init(struct vc_data *vc, int init)
static void newport_deinit(struct vc_data *c)
{
- int i;
-
- /* free memory used by user font */
- for (i = 0; i < MAX_NR_CONSOLES; i++)
- newport_set_def_font(i, NULL);
+ if (!con_is_bound(&newport_con) && newport_has_init) {
+ newport_exit();
+ newport_has_init = 0;
+ }
}
static void newport_clear(struct vc_data *vc, int sy, int sx, int height,
@@ -728,16 +739,23 @@ const struct consw newport_con = {
#ifdef MODULE
static int __init newport_console_init(void)
{
+
+ if (!sgi_gfxaddr)
+ return NULL;
+
+ if (!npregs)
+ npregs = (struct newport_regs *)/* ioremap cannot fail */
+ ioremap(sgi_gfxaddr, sizeof(struct newport_regs));
+
return take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);
}
+module_init(newport_console_init);
static void __exit newport_console_exit(void)
{
give_up_console(&newport_con);
iounmap((void *)npregs);
}
-
-module_init(newport_console_init);
module_exit(newport_console_exit);
#endif
diff --git a/drivers/video/console/promcon.c b/drivers/video/console/promcon.c
index 04f42fcaac5..d6e6ad537f9 100644
--- a/drivers/video/console/promcon.c
+++ b/drivers/video/console/promcon.c
@@ -109,7 +109,7 @@ promcon_end(struct vc_data *conp, char *b)
return b - p;
}
-const char __init *promcon_startup(void)
+const char *promcon_startup(void)
{
const char *display_desc = "PROM";
int node;
@@ -133,7 +133,7 @@ const char __init *promcon_startup(void)
return display_desc;
}
-static void __init
+static void
promcon_init_unimap(struct vc_data *conp)
{
mm_segment_t old_fs = get_fs();
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index fd5940f4127..45c4f227e56 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -75,7 +75,7 @@ static inline void cursor_undrawn(void)
cursor_drawn = 0;
}
-static const char *__init sticon_startup(void)
+static const char *sticon_startup(void)
{
return "STI console";
}
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index e64d42e2449..f32b590730f 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -114,6 +114,7 @@ static int vga_512_chars;
static int vga_video_font_height;
static int vga_scan_lines;
static unsigned int vga_rolled_over = 0;
+static int vga_init_done;
static int __init no_scroll(char *str)
{
@@ -190,7 +191,7 @@ static void vgacon_scrollback_init(int pitch)
}
}
-static void __init vgacon_scrollback_startup(void)
+static void vgacon_scrollback_startup(void)
{
vgacon_scrollback = alloc_bootmem(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE
* 1024);
@@ -355,7 +356,7 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines)
}
#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
-static const char __init *vgacon_startup(void)
+static const char *vgacon_startup(void)
{
const char *display_desc = NULL;
u16 saved1, saved2;
@@ -523,7 +524,12 @@ static const char __init *vgacon_startup(void)
vgacon_xres = ORIG_VIDEO_COLS * VGA_FONTWIDTH;
vgacon_yres = vga_scan_lines;
- vgacon_scrollback_startup();
+
+ if (!vga_init_done) {
+ vgacon_scrollback_startup();
+ vga_init_done = 1;
+ }
+
return display_desc;
}
@@ -531,10 +537,20 @@ static void vgacon_init(struct vc_data *c, int init)
{
unsigned long p;
- /* We cannot be loaded as a module, therefore init is always 1 */
+ /*
+ * We cannot be loaded as a module, therefore init is always 1,
+ * but vgacon_init can be called more than once, and init will
+ * not be 1.
+ */
c->vc_can_do_color = vga_can_do_color;
- c->vc_cols = vga_video_num_columns;
- c->vc_rows = vga_video_num_lines;
+
+ /* set dimensions manually if init != 0 since vc_resize() will fail */
+ if (init) {
+ c->vc_cols = vga_video_num_columns;
+ c->vc_rows = vga_video_num_lines;
+ } else
+ vc_resize(c, vga_video_num_columns, vga_video_num_lines);
+
c->vc_scan_lines = vga_scan_lines;
c->vc_font.height = vga_video_font_height;
c->vc_complement_mask = 0x7700;
diff --git a/drivers/video/epson1355fb.c b/drivers/video/epson1355fb.c
index 082759447bf..f0a621ecc28 100644
--- a/drivers/video/epson1355fb.c
+++ b/drivers/video/epson1355fb.c
@@ -605,11 +605,6 @@ static void clearfb16(struct fb_info *info)
fb_writeb(0, dst);
}
-static void epson1355fb_platform_release(struct device *device)
-{
- dev_err(device, "This driver is broken, please bug the authors so they will fix it.\n");
-}
-
static int epson1355fb_remove(struct platform_device *dev)
{
struct fb_info *info = platform_get_drvdata(dev);
@@ -733,13 +728,7 @@ static struct platform_driver epson1355fb_driver = {
},
};
-static struct platform_device epson1355fb_device = {
- .name = "epson1355fb",
- .id = 0,
- .dev = {
- .release = epson1355fb_platform_release,
- }
-};
+static struct platform_device *epson1355fb_device;
int __init epson1355fb_init(void)
{
@@ -749,11 +738,21 @@ int __init epson1355fb_init(void)
return -ENODEV;
ret = platform_driver_register(&epson1355fb_driver);
+
if (!ret) {
- ret = platform_device_register(&epson1355fb_device);
- if (ret)
+ epson1355fb_device = platform_device_alloc("epson1355fb", 0);
+
+ if (epson1355fb_device)
+ ret = platform_device_add(epson1355fb_device);
+ else
+ ret = -ENOMEM;
+
+ if (ret) {
+ platform_device_put(epson1355fb_device);
platform_driver_unregister(&epson1355fb_driver);
+ }
}
+
return ret;
}
@@ -762,7 +761,7 @@ module_init(epson1355fb_init);
#ifdef MODULE
static void __exit epson1355fb_exit(void)
{
- platform_device_unregister(&epson1355fb_device);
+ platform_device_unregister(epson1355fb_device);
platform_driver_unregister(&epson1355fb_driver);
}
diff --git a/drivers/video/fbcvt.c b/drivers/video/fbcvt.c
index ac90883dc3a..b5498999c4e 100644
--- a/drivers/video/fbcvt.c
+++ b/drivers/video/fbcvt.c
@@ -376,4 +376,3 @@ int fb_find_mode_cvt(struct fb_videomode *mode, int margins, int rb)
return 0;
}
-EXPORT_SYMBOL(fb_find_mode_cvt);
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 372aa177682..31143afe7c9 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -34,7 +34,6 @@
#endif
#include <linux/devfs_fs_kernel.h>
#include <linux/err.h>
-#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/efi.h>
@@ -162,7 +161,6 @@ char* fb_get_buffer_offset(struct fb_info *info, struct fb_pixmap *buf, u32 size
}
#ifdef CONFIG_LOGO
-#include <linux/linux_logo.h>
static inline unsigned safe_shift(unsigned d, int n)
{
@@ -336,11 +334,11 @@ static void fb_rotate_logo_ud(const u8 *in, u8 *out, u32 width, u32 height)
static void fb_rotate_logo_cw(const u8 *in, u8 *out, u32 width, u32 height)
{
- int i, j, w = width - 1;
+ int i, j, h = height - 1;
for (i = 0; i < height; i++)
for (j = 0; j < width; j++)
- out[height * j + w - i] = *in++;
+ out[height * j + h - i] = *in++;
}
static void fb_rotate_logo_ccw(const u8 *in, u8 *out, u32 width, u32 height)
@@ -358,24 +356,24 @@ static void fb_rotate_logo(struct fb_info *info, u8 *dst,
u32 tmp;
if (rotate == FB_ROTATE_UD) {
- image->dx = info->var.xres - image->width;
- image->dy = info->var.yres - image->height;
fb_rotate_logo_ud(image->data, dst, image->width,
image->height);
+ image->dx = info->var.xres - image->width;
+ image->dy = info->var.yres - image->height;
} else if (rotate == FB_ROTATE_CW) {
- tmp = image->width;
- image->width = image->height;
- image->height = tmp;
- image->dx = info->var.xres - image->height;
fb_rotate_logo_cw(image->data, dst, image->width,
image->height);
- } else if (rotate == FB_ROTATE_CCW) {
tmp = image->width;
image->width = image->height;
image->height = tmp;
- image->dy = info->var.yres - image->width;
+ image->dx = info->var.xres - image->width;
+ } else if (rotate == FB_ROTATE_CCW) {
fb_rotate_logo_ccw(image->data, dst, image->width,
image->height);
+ tmp = image->width;
+ image->width = image->height;
+ image->height = tmp;
+ image->dy = info->var.yres - image->height;
}
image->data = dst;
@@ -435,7 +433,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
depth = info->var.green.length;
}
- if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR) {
+ if (info->fix.visual == FB_VISUAL_STATIC_PSEUDOCOLOR && depth > 4) {
/* assume console colormap */
depth = 4;
}
@@ -1278,8 +1276,8 @@ static struct file_operations fb_fops = {
#endif
};
-static struct class *fb_class;
-
+struct class *fb_class;
+EXPORT_SYMBOL(fb_class);
/**
* register_framebuffer - registers a frame buffer device
* @fb_info: frame buffer info structure
@@ -1355,6 +1353,7 @@ register_framebuffer(struct fb_info *fb_info)
int
unregister_framebuffer(struct fb_info *fb_info)
{
+ struct fb_event event;
int i;
i = fb_info->node;
@@ -1362,13 +1361,17 @@ unregister_framebuffer(struct fb_info *fb_info)
return -EINVAL;
devfs_remove("fb/%d", i);
- if (fb_info->pixmap.addr && (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
+ if (fb_info->pixmap.addr &&
+ (fb_info->pixmap.flags & FB_PIXMAP_DEFAULT))
kfree(fb_info->pixmap.addr);
fb_destroy_modelist(&fb_info->modelist);
registered_fb[i]=NULL;
num_registered_fb--;
fb_cleanup_class_device(fb_info);
class_device_destroy(fb_class, MKDEV(FB_MAJOR, i));
+ event.info = fb_info;
+ blocking_notifier_call_chain(&fb_notifier_list,
+ FB_EVENT_FB_UNREGISTERED, &event);
return 0;
}
@@ -1491,28 +1494,6 @@ int fb_new_modelist(struct fb_info *info)
return err;
}
-/**
- * fb_con_duit - user<->fbcon passthrough
- * @info: struct fb_info
- * @event: notification event to be passed to fbcon
- * @data: private data
- *
- * DESCRIPTION
- * This function is an fbcon-user event passing channel
- * which bypasses fbdev. This is hopefully temporary
- * until a user interface for fbcon is created
- */
-int fb_con_duit(struct fb_info *info, int event, void *data)
-{
- struct fb_event evnt;
-
- evnt.info = info;
- evnt.data = data;
-
- return blocking_notifier_call_chain(&fb_notifier_list, event, &evnt);
-}
-EXPORT_SYMBOL(fb_con_duit);
-
static char *video_options[FB_MAX];
static int ofonly;
@@ -1622,6 +1603,5 @@ EXPORT_SYMBOL(fb_set_suspend);
EXPORT_SYMBOL(fb_register_client);
EXPORT_SYMBOL(fb_unregister_client);
EXPORT_SYMBOL(fb_get_options);
-EXPORT_SYMBOL(fb_new_modelist);
MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 53beeb4a999..3ccfff715a5 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -29,9 +29,9 @@
#include <linux/tty.h>
#include <linux/fb.h>
#include <linux/module.h>
+#include <linux/pci.h>
#include <video/edid.h>
#ifdef CONFIG_PPC_OF
-#include <linux/pci.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#endif
@@ -605,6 +605,7 @@ static int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs)
block = edid + DETAILED_TIMING_DESCRIPTIONS_START;
DPRINTK(" Monitor Operating Limits: ");
+
for (i = 0; i < 4; i++, block += DETAILED_TIMING_DESCRIPTION_SIZE) {
if (edid_is_limits_block(block)) {
specs->hfmin = H_MIN_RATE * 1000;
@@ -618,11 +619,12 @@ static int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs)
break;
}
}
-
+
/* estimate monitor limits based on modes supported */
if (retval) {
- struct fb_videomode *modes;
+ struct fb_videomode *modes, *mode;
int num_modes, i, hz, hscan, pixclock;
+ int vtotal, htotal;
modes = fb_create_modedb(edid, &num_modes);
if (!modes) {
@@ -632,20 +634,38 @@ static int fb_get_monitor_limits(unsigned char *edid, struct fb_monspecs *specs)
retval = 0;
for (i = 0; i < num_modes; i++) {
- hz = modes[i].refresh;
+ mode = &modes[i];
pixclock = PICOS2KHZ(modes[i].pixclock) * 1000;
- hscan = (modes[i].yres * 105 * hz + 5000)/100;
+ htotal = mode->xres + mode->right_margin + mode->hsync_len
+ + mode->left_margin;
+ vtotal = mode->yres + mode->lower_margin + mode->vsync_len
+ + mode->upper_margin;
+
+ if (mode->vmode & FB_VMODE_INTERLACED)
+ vtotal /= 2;
+
+ if (mode->vmode & FB_VMODE_DOUBLE)
+ vtotal *= 2;
+
+ hscan = (pixclock + htotal / 2) / htotal;
+ hscan = (hscan + 500) / 1000 * 1000;
+ hz = (hscan + vtotal / 2) / vtotal;
if (specs->dclkmax == 0 || specs->dclkmax < pixclock)
specs->dclkmax = pixclock;
+
if (specs->dclkmin == 0 || specs->dclkmin > pixclock)
specs->dclkmin = pixclock;
+
if (specs->hfmax == 0 || specs->hfmax < hscan)
specs->hfmax = hscan;
+
if (specs->hfmin == 0 || specs->hfmin > hscan)
specs->hfmin = hscan;
+
if (specs->vfmax == 0 || specs->vfmax < hz)
specs->vfmax = hz;
+
if (specs->vfmin == 0 || specs->vfmin > hz)
specs->vfmin = hz;
}
@@ -1281,8 +1301,7 @@ int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info)
-EINVAL : 0;
}
-#if defined(CONFIG_FB_FIRMWARE_EDID) && defined(__i386__)
-#include <linux/pci.h>
+#if defined(CONFIG_FIRMWARE_EDID) && defined(CONFIG_X86)
/*
* We need to ensure that the EDID block is only returned for
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index 3ceb8c1b392..4f78f234473 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -100,13 +100,22 @@ static int mode_string(char *buf, unsigned int offset,
const struct fb_videomode *mode)
{
char m = 'U';
+ char v = 'p';
+
if (mode->flag & FB_MODE_IS_DETAILED)
m = 'D';
if (mode->flag & FB_MODE_IS_VESA)
m = 'V';
if (mode->flag & FB_MODE_IS_STANDARD)
m = 'S';
- return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d-%d\n", m, mode->xres, mode->yres, mode->refresh);
+
+ if (mode->vmode & FB_VMODE_INTERLACED)
+ v = 'i';
+ if (mode->vmode & FB_VMODE_DOUBLE)
+ v = 'd';
+
+ return snprintf(&buf[offset], PAGE_SIZE - offset, "%c:%dx%d%c-%d\n",
+ m, mode->xres, mode->yres, v, mode->refresh);
}
static ssize_t store_mode(struct class_device *class_device, const char * buf,
@@ -238,45 +247,6 @@ static ssize_t show_rotate(struct class_device *class_device, char *buf)
return snprintf(buf, PAGE_SIZE, "%d\n", fb_info->var.rotate);
}
-static ssize_t store_con_rotate(struct class_device *class_device,
- const char *buf, size_t count)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- int rotate;
- char **last = NULL;
-
- acquire_console_sem();
- rotate = simple_strtoul(buf, last, 0);
- fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE, &rotate);
- release_console_sem();
- return count;
-}
-
-static ssize_t store_con_rotate_all(struct class_device *class_device,
- const char *buf, size_t count)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- int rotate;
- char **last = NULL;
-
- acquire_console_sem();
- rotate = simple_strtoul(buf, last, 0);
- fb_con_duit(fb_info, FB_EVENT_SET_CON_ROTATE_ALL, &rotate);
- release_console_sem();
- return count;
-}
-
-static ssize_t show_con_rotate(struct class_device *class_device, char *buf)
-{
- struct fb_info *fb_info = class_get_devdata(class_device);
- int rotate;
-
- acquire_console_sem();
- rotate = fb_con_duit(fb_info, FB_EVENT_GET_CON_ROTATE, NULL);
- release_console_sem();
- return snprintf(buf, PAGE_SIZE, "%d\n", rotate);
-}
-
static ssize_t store_virtual(struct class_device *class_device,
const char * buf, size_t count)
{
@@ -493,8 +463,6 @@ static struct class_device_attribute class_device_attrs[] = {
__ATTR(name, S_IRUGO, show_name, NULL),
__ATTR(stride, S_IRUGO, show_stride, NULL),
__ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
- __ATTR(con_rotate, S_IRUGO|S_IWUSR, show_con_rotate, store_con_rotate),
- __ATTR(con_rotate_all, S_IWUSR, NULL, store_con_rotate_all),
__ATTR(state, S_IRUGO|S_IWUSR, show_fbstate, store_fbstate),
#ifdef CONFIG_FB_BACKLIGHT
__ATTR(bl_curve, S_IRUGO|S_IWUSR, show_bl_curve, store_bl_curve),
diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
index 20e69156d72..4d3a8871d3d 100644
--- a/drivers/video/geode/gx1fb_core.c
+++ b/drivers/video/geode/gx1fb_core.c
@@ -376,8 +376,6 @@ static int __init gx1fb_probe(struct pci_dev *pdev, const struct pci_device_id *
release_mem_region(gx1_gx_base() + 0x8300, 0x100);
}
- pci_disable_device(pdev);
-
if (info)
framebuffer_release(info);
return ret;
@@ -399,7 +397,6 @@ static void gx1fb_remove(struct pci_dev *pdev)
iounmap(par->dc_regs);
release_mem_region(gx1_gx_base() + 0x8300, 0x100);
- pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
framebuffer_release(info);
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 89c34b15f5d..5ef12a3dfa5 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -354,8 +354,6 @@ static int __init gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *i
pci_release_region(pdev, 2);
}
- pci_disable_device(pdev);
-
if (info)
framebuffer_release(info);
return ret;
@@ -377,7 +375,6 @@ static void gxfb_remove(struct pci_dev *pdev)
iounmap(par->dc_regs);
pci_release_region(pdev, 2);
- pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
framebuffer_release(info);
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 44aa2ffff97..a1f7d80f0ac 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -2110,9 +2110,6 @@ static void i810fb_release_resource(struct fb_info *info,
if (par->res_flags & MMIO_REQ)
release_mem_region(par->mmio_start_phys, MMIO_SIZE);
- if (par->res_flags & PCI_DEVICE_ENABLED)
- pci_disable_device(par->dev);
-
framebuffer_release(info);
}
diff --git a/drivers/video/imacfb.c b/drivers/video/imacfb.c
new file mode 100644
index 00000000000..7b1c168c834
--- /dev/null
+++ b/drivers/video/imacfb.c
@@ -0,0 +1,345 @@
+/*
+ * framebuffer driver for Intel Based Mac's
+ *
+ * (c) 2006 Edgar Hucek <gimli@dark-green.com>
+ * Original imac driver written by Gerd Knorr <kraxel@goldbach.in-berlin.de>
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/tty.h>
+
+#include <asm/io.h>
+
+#include <video/vga.h>
+
+typedef enum _MAC_TYPE {
+ M_I17,
+ M_I20,
+ M_MINI,
+ M_MACBOOK,
+ M_NEW
+} MAC_TYPE;
+
+/* --------------------------------------------------------------------- */
+
+static struct fb_var_screeninfo imacfb_defined __initdata = {
+ .activate = FB_ACTIVATE_NOW,
+ .height = -1,
+ .width = -1,
+ .right_margin = 32,
+ .upper_margin = 16,
+ .lower_margin = 4,
+ .vsync_len = 4,
+ .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo imacfb_fix __initdata = {
+ .id = "IMAC VGA",
+ .type = FB_TYPE_PACKED_PIXELS,
+ .accel = FB_ACCEL_NONE,
+ .visual = FB_VISUAL_TRUECOLOR,
+};
+
+static int inverse;
+static int model = M_NEW;
+static int manual_height;
+static int manual_width;
+
+#define DEFAULT_FB_MEM 1024*1024*16
+
+/* --------------------------------------------------------------------- */
+
+static int imacfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info)
+{
+ /*
+ * Set a single color register. The values supplied are
+ * already rounded down to the hardware's capabilities
+ * (according to the entries in the `var' structure). Return
+ * != 0 for invalid regno.
+ */
+
+ if (regno >= info->cmap.len)
+ return 1;
+
+ if (regno < 16) {
+ red >>= 8;
+ green >>= 8;
+ blue >>= 8;
+ ((u32 *)(info->pseudo_palette))[regno] =
+ (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset);
+ }
+ return 0;
+}
+
+static struct fb_ops imacfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_setcolreg = imacfb_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+};
+
+static int __init imacfb_setup(char *options)
+{
+ char *this_opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((this_opt = strsep(&options, ",")) != NULL) {
+ if (!*this_opt) continue;
+
+ if (!strcmp(this_opt, "inverse"))
+ inverse = 1;
+ else if (!strcmp(this_opt, "i17"))
+ model = M_I17;
+ else if (!strcmp(this_opt, "i20"))
+ model = M_I20;
+ else if (!strcmp(this_opt, "mini"))
+ model = M_MINI;
+ else if (!strcmp(this_opt, "macbook"))
+ model = M_MACBOOK;
+ else if (!strncmp(this_opt, "height:", 7))
+ manual_height = simple_strtoul(this_opt+7, NULL, 0);
+ else if (!strncmp(this_opt, "width:", 6))
+ manual_width = simple_strtoul(this_opt+6, NULL, 0);
+ }
+ return 0;
+}
+
+static int __init imacfb_probe(struct platform_device *dev)
+{
+ struct fb_info *info;
+ int err;
+ unsigned int size_vmode;
+ unsigned int size_remap;
+ unsigned int size_total;
+
+ screen_info.lfb_depth = 32;
+ screen_info.lfb_size = DEFAULT_FB_MEM / 0x10000;
+ screen_info.pages=1;
+ screen_info.blue_size = 8;
+ screen_info.blue_pos = 0;
+ screen_info.green_size = 8;
+ screen_info.green_pos = 8;
+ screen_info.red_size = 8;
+ screen_info.red_pos = 16;
+ screen_info.rsvd_size = 8;
+ screen_info.rsvd_pos = 24;
+
+ switch (model) {
+ case M_I17:
+ screen_info.lfb_width = 1440;
+ screen_info.lfb_height = 900;
+ screen_info.lfb_linelength = 1472 * 4;
+ screen_info.lfb_base = 0x80010000;
+ break;
+ case M_NEW:
+ case M_I20:
+ screen_info.lfb_width = 1680;
+ screen_info.lfb_height = 1050;
+ screen_info.lfb_linelength = 1728 * 4;
+ screen_info.lfb_base = 0x80010000;
+ break;
+ case M_MINI:
+ screen_info.lfb_width = 1024;
+ screen_info.lfb_height = 768;
+ screen_info.lfb_linelength = 2048 * 4;
+ screen_info.lfb_base = 0x80000000;
+ break;
+ case M_MACBOOK:
+ screen_info.lfb_width = 1280;
+ screen_info.lfb_height = 800;
+ screen_info.lfb_linelength = 2048 * 4;
+ screen_info.lfb_base = 0x80000000;
+ break;
+ }
+
+ /* if the user wants to manually specify height/width,
+ we will override the defaults */
+ /* TODO: eventually get auto-detection working */
+ if (manual_height > 0)
+ screen_info.lfb_height = manual_height;
+ if (manual_width > 0)
+ screen_info.lfb_width = manual_width;
+
+ imacfb_fix.smem_start = screen_info.lfb_base;
+ imacfb_defined.bits_per_pixel = screen_info.lfb_depth;
+ imacfb_defined.xres = screen_info.lfb_width;
+ imacfb_defined.yres = screen_info.lfb_height;
+ imacfb_fix.line_length = screen_info.lfb_linelength;
+
+ /* size_vmode -- that is the amount of memory needed for the
+ * used video mode, i.e. the minimum amount of
+ * memory we need. */
+ size_vmode = imacfb_defined.yres * imacfb_fix.line_length;
+
+ /* size_total -- all video memory we have. Used for
+ * entries, ressource allocation and bounds
+ * checking. */
+ size_total = screen_info.lfb_size * 65536;
+ if (size_total < size_vmode)
+ size_total = size_vmode;
+
+ /* size_remap -- the amount of video memory we are going to
+ * use for imacfb. With modern cards it is no
+ * option to simply use size_total as that
+ * wastes plenty of kernel address space. */
+ size_remap = size_vmode * 2;
+ if (size_remap < size_vmode)
+ size_remap = size_vmode;
+ if (size_remap > size_total)
+ size_remap = size_total;
+ imacfb_fix.smem_len = size_remap;
+
+#ifndef __i386__
+ screen_info.imacpm_seg = 0;
+#endif
+
+ if (!request_mem_region(imacfb_fix.smem_start, size_total, "imacfb")) {
+ printk(KERN_WARNING
+ "imacfb: cannot reserve video memory at 0x%lx\n",
+ imacfb_fix.smem_start);
+ /* We cannot make this fatal. Sometimes this comes from magic
+ spaces our resource handlers simply don't know about */
+ }
+
+ info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
+ if (!info) {
+ err = -ENOMEM;
+ goto err_release_mem;
+ }
+ info->pseudo_palette = info->par;
+ info->par = NULL;
+
+ info->screen_base = ioremap(imacfb_fix.smem_start, imacfb_fix.smem_len);
+ if (!info->screen_base) {
+ printk(KERN_ERR "imacfb: abort, cannot ioremap video memory "
+ "0x%x @ 0x%lx\n",
+ imacfb_fix.smem_len, imacfb_fix.smem_start);
+ err = -EIO;
+ goto err_unmap;
+ }
+
+ printk(KERN_INFO "imacfb: framebuffer at 0x%lx, mapped to 0x%p, "
+ "using %dk, total %dk\n",
+ imacfb_fix.smem_start, info->screen_base,
+ size_remap/1024, size_total/1024);
+ printk(KERN_INFO "imacfb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
+ imacfb_defined.xres, imacfb_defined.yres,
+ imacfb_defined.bits_per_pixel, imacfb_fix.line_length,
+ screen_info.pages);
+
+ imacfb_defined.xres_virtual = imacfb_defined.xres;
+ imacfb_defined.yres_virtual = imacfb_fix.smem_len /
+ imacfb_fix.line_length;
+ printk(KERN_INFO "imacfb: scrolling: redraw\n");
+ imacfb_defined.yres_virtual = imacfb_defined.yres;
+
+ /* some dummy values for timing to make fbset happy */
+ imacfb_defined.pixclock = 10000000 / imacfb_defined.xres *
+ 1000 / imacfb_defined.yres;
+ imacfb_defined.left_margin = (imacfb_defined.xres / 8) & 0xf8;
+ imacfb_defined.hsync_len = (imacfb_defined.xres / 8) & 0xf8;
+
+ imacfb_defined.red.offset = screen_info.red_pos;
+ imacfb_defined.red.length = screen_info.red_size;
+ imacfb_defined.green.offset = screen_info.green_pos;
+ imacfb_defined.green.length = screen_info.green_size;
+ imacfb_defined.blue.offset = screen_info.blue_pos;
+ imacfb_defined.blue.length = screen_info.blue_size;
+ imacfb_defined.transp.offset = screen_info.rsvd_pos;
+ imacfb_defined.transp.length = screen_info.rsvd_size;
+
+ printk(KERN_INFO "imacfb: %s: "
+ "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
+ "Truecolor",
+ screen_info.rsvd_size,
+ screen_info.red_size,
+ screen_info.green_size,
+ screen_info.blue_size,
+ screen_info.rsvd_pos,
+ screen_info.red_pos,
+ screen_info.green_pos,
+ screen_info.blue_pos);
+
+ imacfb_fix.ypanstep = 0;
+ imacfb_fix.ywrapstep = 0;
+
+ /* request failure does not faze us, as vgacon probably has this
+ * region already (FIXME) */
+ request_region(0x3c0, 32, "imacfb");
+
+ info->fbops = &imacfb_ops;
+ info->var = imacfb_defined;
+ info->fix = imacfb_fix;
+ info->flags = FBINFO_FLAG_DEFAULT;
+
+ if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+ err = -ENOMEM;
+ goto err_unmap;
+ }
+ if (register_framebuffer(info)<0) {
+ err = -EINVAL;
+ goto err_fb_dealoc;
+ }
+ printk(KERN_INFO "fb%d: %s frame buffer device\n",
+ info->node, info->fix.id);
+ return 0;
+
+err_fb_dealoc:
+ fb_dealloc_cmap(&info->cmap);
+err_unmap:
+ iounmap(info->screen_base);
+ framebuffer_release(info);
+err_release_mem:
+ release_mem_region(imacfb_fix.smem_start, size_total);
+ return err;
+}
+
+static struct platform_driver imacfb_driver = {
+ .probe = imacfb_probe,
+ .driver = {
+ .name = "imacfb",
+ },
+};
+
+static struct platform_device imacfb_device = {
+ .name = "imacfb",
+};
+
+static int __init imacfb_init(void)
+{
+ int ret;
+ char *option = NULL;
+
+ /* ignore error return of fb_get_options */
+ fb_get_options("imacfb", &option);
+ imacfb_setup(option);
+ ret = platform_driver_register(&imacfb_driver);
+
+ if (!ret) {
+ ret = platform_device_register(&imacfb_device);
+ if (ret)
+ platform_driver_unregister(&imacfb_driver);
+ }
+ return ret;
+}
+module_init(imacfb_init);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/macmodes.c b/drivers/video/macmodes.c
index c0385c6f7db..d21321ca7c3 100644
--- a/drivers/video/macmodes.c
+++ b/drivers/video/macmodes.c
@@ -327,7 +327,6 @@ int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
}
return -EINVAL;
}
-EXPORT_SYMBOL(mac_var_to_vmode);
/**
* mac_map_monitor_sense - Convert monitor sense to vmode
@@ -371,8 +370,9 @@ EXPORT_SYMBOL(mac_map_monitor_sense);
*
*/
-int __init mac_find_mode(struct fb_var_screeninfo *var, struct fb_info *info,
- const char *mode_option, unsigned int default_bpp)
+int __devinit mac_find_mode(struct fb_var_screeninfo *var,
+ struct fb_info *info, const char *mode_option,
+ unsigned int default_bpp)
{
const struct fb_videomode *db = NULL;
unsigned int dbsize = 0;
diff --git a/drivers/video/macmodes.h b/drivers/video/macmodes.h
index 232f5a09a49..babeb81f467 100644
--- a/drivers/video/macmodes.h
+++ b/drivers/video/macmodes.h
@@ -55,9 +55,10 @@ extern int mac_vmode_to_var(int vmode, int cmode,
extern int mac_var_to_vmode(const struct fb_var_screeninfo *var, int *vmode,
int *cmode);
extern int mac_map_monitor_sense(int sense);
-extern int __init mac_find_mode(struct fb_var_screeninfo *var,
- struct fb_info *info, const char *mode_option,
- unsigned int default_bpp);
+extern int __devinit mac_find_mode(struct fb_var_screeninfo *var,
+ struct fb_info *info,
+ const char *mode_option,
+ unsigned int default_bpp);
/*
diff --git a/drivers/video/modedb.c b/drivers/video/modedb.c
index 26a1c618a20..ff5454601e2 100644
--- a/drivers/video/modedb.c
+++ b/drivers/video/modedb.c
@@ -259,6 +259,10 @@ static const struct fb_videomode modedb[] = {
/* 1152x768, 60 Hz, PowerBook G4 Titanium I and II */
NULL, 60, 1152, 768, 15386, 158, 26, 29, 3, 136, 6,
FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+ }, {
+ /* 1366x768, 60 Hz, 47.403 kHz hsync, WXGA 16:9 aspect ratio */
+ NULL, 60, 1366, 768, 13806, 120, 10, 14, 3, 32, 5,
+ 0, FB_VMODE_NONINTERLACED
},
};
@@ -787,8 +791,9 @@ struct fb_videomode *fb_find_best_mode(struct fb_var_screeninfo *var,
if (diff > d) {
diff = d;
best = mode;
- } else if (diff == d && mode->refresh > best->refresh)
- best = mode;
+ } else if (diff == d && best &&
+ mode->refresh > best->refresh)
+ best = mode;
}
}
return best;
@@ -1016,8 +1021,6 @@ EXPORT_SYMBOL(fb_videomode_to_var);
EXPORT_SYMBOL(fb_var_to_videomode);
EXPORT_SYMBOL(fb_mode_is_equal);
EXPORT_SYMBOL(fb_add_videomode);
-EXPORT_SYMBOL(fb_delete_videomode);
-EXPORT_SYMBOL(fb_destroy_modelist);
EXPORT_SYMBOL(fb_match_mode);
EXPORT_SYMBOL(fb_find_best_mode);
EXPORT_SYMBOL(fb_find_nearest_mode);
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 24b12f71d5a..2f156b724d1 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -1333,17 +1333,22 @@ static int neofb_blank(int blank_mode, struct fb_info *info)
* run "setterm -powersave powerdown" to take advantage
*/
struct neofb_par *par = info->par;
- int seqflags, lcdflags, dpmsflags, reg;
-
+ int seqflags, lcdflags, dpmsflags, reg, tmpdisp;
/*
- * Reload the value stored in the register, if sensible. It might have
- * been changed via FN keystroke.
+ * Read back the register bits related to display configuration. They might
+ * have been changed underneath the driver via Fn key stroke.
+ */
+ neoUnlock();
+ tmpdisp = vga_rgfx(NULL, 0x20) & 0x03;
+ neoLock(&par->state);
+
+ /* In case we blank the screen, we want to store the possibly new
+ * configuration in the driver. During un-blank, we re-apply this setting,
+ * since the LCD bit will be cleared in order to switch off the backlight.
*/
if (par->PanelDispCntlRegRead) {
- neoUnlock();
- par->PanelDispCntlReg1 = vga_rgfx(NULL, 0x20) & 0x03;
- neoLock(&par->state);
+ par->PanelDispCntlReg1 = tmpdisp;
}
par->PanelDispCntlRegRead = !blank_mode;
@@ -1378,12 +1383,21 @@ static int neofb_blank(int blank_mode, struct fb_info *info)
break;
case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */
seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */
- lcdflags = par->PanelDispCntlReg1 & 0x02; /* LCD normal */
+ /*
+ * During a blank operation with the LID shut, we might store "LCD off"
+ * by mistake. Due to timing issues, the BIOS may switch the lights
+ * back on, and we turn it back off once we "unblank".
+ *
+ * So here is an attempt to implement ">=" - if we are in the process
+ * of unblanking, and the LCD bit is unset in the driver but set in the
+ * register, we must keep it.
+ */
+ lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
dpmsflags = 0x00; /* no hsync/vsync suppression */
break;
case FB_BLANK_UNBLANK: /* unblank */
seqflags = 0; /* Enable sequencer */
- lcdflags = par->PanelDispCntlReg1 & 0x02; /* LCD normal */
+ lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */
dpmsflags = 0x00; /* no hsync/vsync suppression */
#ifdef CONFIG_TOSHIBA
/* Do we still need this ? */
diff --git a/drivers/video/nvidia/nv_hw.c b/drivers/video/nvidia/nv_hw.c
index 99c3a8e6a23..9ed640d3572 100644
--- a/drivers/video/nvidia/nv_hw.c
+++ b/drivers/video/nvidia/nv_hw.c
@@ -886,7 +886,10 @@ void NVCalcStateExt(struct nvidia_par *par,
case NV_ARCH_20:
case NV_ARCH_30:
default:
- if (((par->Chipset & 0xffff) == 0x01A0) ||
+ if ((par->Chipset & 0xfff0) == 0x0240) {
+ state->arbitration0 = 256;
+ state->arbitration1 = 0x0480;
+ } else if (((par->Chipset & 0xffff) == 0x01A0) ||
((par->Chipset & 0xffff) == 0x01f0)) {
nForceUpdateArbitrationSettings(VClk,
pixelDepth * 8,
@@ -1235,6 +1238,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
break;
case 0x0160:
case 0x01D0:
+ case 0x0240:
NV_WR32(par->PMC, 0x1700,
NV_RD32(par->PFB, 0x020C));
NV_WR32(par->PMC, 0x1704, 0);
@@ -1359,7 +1363,9 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
if(((par->Chipset & 0xfff0)
!= 0x0160) &&
((par->Chipset & 0xfff0)
- != 0x0220))
+ != 0x0220) &&
+ ((par->Chipset & 0xfff0)
+ != 0x240))
NV_WR32(par->PGRAPH,
0x6900 + i*4,
NV_RD32(par->PFB,
diff --git a/drivers/video/nvidia/nvidia.c b/drivers/video/nvidia/nvidia.c
index 03a7c1e9ce3..7b5cffb2785 100644
--- a/drivers/video/nvidia/nvidia.c
+++ b/drivers/video/nvidia/nvidia.c
@@ -67,359 +67,10 @@
#define MAX_CURS 32
static struct pci_device_id nvidiafb_pci_tbl[] = {
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UTNT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT_UNKNOWN,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_VTNT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_UVTNT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_ITNT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_SDR,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_DDR,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_MX2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_MXR,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_GTS2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE2_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO2_PRO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_460,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440_SE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_460_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_420_GO_M32,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_440_GO_M64,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_550XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_500_GOGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_410_GO_M16,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440_8X,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_440SE_8X,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_420_8X,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_4000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_448_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_488_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_580_XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_MX_MAC,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_280_NVS,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_380_XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_IGEFORCE2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE3_2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_DDC,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4600,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4400,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_900XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_750XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4800,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4800_8X,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_TI_4800SE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE4_4200_GO,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_980_XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_780_XGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO4_700_GOGL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5800_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5800,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_2000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_1000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5600_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5600,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5600SE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5600,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5650,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_GO700,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5200_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5200_1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5200SE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5250,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5250_32,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO_5200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_NVS_280_PCI,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_500,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5300,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5900_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5900,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5900XT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5950_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_3000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5700_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5700,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5700LE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5700VE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5700_1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_GO5700_2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_GO1000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_1100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5500,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5100,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_700,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_FX_5900ZT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800_LE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800_GT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_4000,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6600_GT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6600,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6610_XL,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_QUADRO_FX_540,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6800_ALT1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6600_ALT1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6600_ALT2,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6200_ALT1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_GEFORCE_6800_GT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCIE_DEVICE_ID_NVIDIA_QUADRO_NVS280,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0252,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0313,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0316,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0317,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x031D,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x031E,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x031F,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0329,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x032F,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0345,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0349,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x034B,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x034F,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x00c0,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_GEFORCE_6800A,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_GEFORCE_6800A_LE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_GEFORCE_GO_6800,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_GEFORCE_GO_6800_ULTRA,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_QUADRO_FX_GO1400,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x00cd,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_QUADRO_FX_1400,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0142,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0143,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0144,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0145,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0146,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0147,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0148,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0149,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x014b,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x14c,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x014d,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0160,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6200_TURBOCACHE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0162,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0163,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_6200,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0165,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_6250,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_6200_1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_6250_1,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0169,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x016b,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x016c,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x016d,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x016e,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0210,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800B,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800B_LE,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_6800B_GT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_7800_GT,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_7800_GTX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_7800,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_GEFORCE_GO_7800_GTX,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x021d,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x021e,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0220,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0221,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0222,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {PCI_VENDOR_ID_NVIDIA, 0x0228,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
- {0,} /* terminate list */
+ {PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
+ PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0},
+ { 0, }
};
-
MODULE_DEVICE_TABLE(pci, nvidiafb_pci_tbl);
/* command line data, set in nvidiafb_setup() */
@@ -1465,10 +1116,10 @@ static u32 __devinit nvidia_get_chipset(struct fb_info *info)
struct nvidia_par *par = info->par;
u32 id = (par->pci_dev->vendor << 16) | par->pci_dev->device;
- printk("nvidiafb: PCI id - %x\n", id);
+ printk(KERN_INFO PFX "Device ID: %x \n", id);
+
if ((id & 0xfff0) == 0x00f0) {
/* pci-e */
- printk("nvidiafb: PCI-E card\n");
id = NV_RD32(par->REGS, 0x1800);
if ((id & 0x0000ffff) == 0x000010DE)
@@ -1476,9 +1127,9 @@ static u32 __devinit nvidia_get_chipset(struct fb_info *info)
else if ((id & 0xffff0000) == 0xDE100000) /* wrong endian */
id = 0x10DE0000 | ((id << 8) & 0x0000ff00) |
((id >> 8) & 0x000000ff);
+ printk(KERN_INFO PFX "Subsystem ID: %x \n", id);
}
- printk("nvidiafb: Actual id - %x\n", id);
return id;
}
@@ -1520,6 +1171,7 @@ static u32 __devinit nvidia_get_arch(struct fb_info *info)
case 0x0210:
case 0x0220:
case 0x0230:
+ case 0x0240:
case 0x0290:
case 0x0390:
arch = NV_ARCH_40;
@@ -1567,7 +1219,7 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd,
if (pci_request_regions(pd, "nvidiafb")) {
printk(KERN_ERR PFX "cannot request PCI regions\n");
- goto err_out_request;
+ goto err_out_enable;
}
par->FlatPanel = flatpanel;
@@ -1596,7 +1248,6 @@ static int __devinit nvidiafb_probe(struct pci_dev *pd,
}
par->Chipset = nvidia_get_chipset(info);
- printk(KERN_INFO PFX "nVidia device/chipset %X\n", par->Chipset);
par->Architecture = nvidia_get_arch(info);
if (par->Architecture == 0) {
@@ -1687,10 +1338,8 @@ err_out_free_base1:
nvidia_delete_i2c_busses(par);
err_out_arch:
iounmap(par->REGS);
-err_out_free_base0:
+ err_out_free_base0:
pci_release_regions(pd);
-err_out_request:
- pci_disable_device(pd);
err_out_enable:
kfree(info->pixmap.addr);
err_out_kfree:
@@ -1720,7 +1369,6 @@ static void __exit nvidiafb_remove(struct pci_dev *pd)
nvidia_delete_i2c_busses(par);
iounmap(par->REGS);
pci_release_regions(pd);
- pci_disable_device(pd);
kfree(info->pixmap.addr);
framebuffer_release(info);
pci_set_drvdata(pd, NULL);
diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index d4384ab1df6..12af58c5cf1 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -2152,7 +2152,6 @@ err_iounmap_ctrl_base:
err_release_region:
pci_release_regions(pd);
err_disable_device:
- pci_disable_device(pd);
err_free_pixmap:
kfree(info->pixmap.addr);
err_framebuffer_release:
@@ -2187,7 +2186,6 @@ static void __exit rivafb_remove(struct pci_dev *pd)
if (par->riva.Architecture == NV_ARCH_03)
iounmap(par->riva.PRAMIN);
pci_release_regions(pd);
- pci_disable_device(pd);
kfree(info->pixmap.addr);
framebuffer_release(info);
pci_set_drvdata(pd, NULL);
diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index 9451932fbaf..fbc41185068 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -641,6 +641,7 @@ static int __init s3c2410fb_probe(struct platform_device *pdev)
int ret;
int irq;
int i;
+ u32 lcdcon1;
mach_info = pdev->dev.platform_data;
if (mach_info == NULL) {
@@ -672,6 +673,11 @@ static int __init s3c2410fb_probe(struct platform_device *pdev)
memcpy(&info->regs, &mach_info->regs, sizeof(info->regs));
+ /* Stop the video and unset ENVID if set */
+ info->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID;
+ lcdcon1 = readl(S3C2410_LCDCON1);
+ writel(lcdcon1 & ~S3C2410_LCDCON1_ENVID, S3C2410_LCDCON1);
+
info->mach_info = pdev->dev.platform_data;
fbinfo->fix.type = FB_TYPE_PACKED_PIXELS;
@@ -794,15 +800,14 @@ dealloc_fb:
* shutdown the lcd controller
*/
-static void s3c2410fb_stop_lcd(void)
+static void s3c2410fb_stop_lcd(struct s3c2410fb_info *fbi)
{
unsigned long flags;
- unsigned long tmp;
local_irq_save(flags);
- tmp = readl(S3C2410_LCDCON1);
- writel(tmp & ~S3C2410_LCDCON1_ENVID, S3C2410_LCDCON1);
+ fbi->regs.lcdcon1 &= ~S3C2410_LCDCON1_ENVID;
+ writel(fbi->regs.lcdcon1, S3C2410_LCDCON1);
local_irq_restore(flags);
}
@@ -816,7 +821,7 @@ static int s3c2410fb_remove(struct platform_device *pdev)
struct s3c2410fb_info *info = fbinfo->par;
int irq;
- s3c2410fb_stop_lcd();
+ s3c2410fb_stop_lcd(info);
msleep(1);
s3c2410fb_unmap_video_memory(info);
@@ -844,7 +849,7 @@ static int s3c2410fb_suspend(struct platform_device *dev, pm_message_t state)
struct fb_info *fbinfo = platform_get_drvdata(dev);
struct s3c2410fb_info *info = fbinfo->par;
- s3c2410fb_stop_lcd();
+ s3c2410fb_stop_lcd(info);
/* sleep before disabling the clock, we need to ensure
* the LCD DMA engine is not going to get back on the bus
diff --git a/drivers/video/savage/savagefb.h b/drivers/video/savage/savagefb.h
index 58cfdfb4183..e648a6c0f6d 100644
--- a/drivers/video/savage/savagefb.h
+++ b/drivers/video/savage/savagefb.h
@@ -147,7 +147,27 @@ struct xtimings {
int interlaced;
};
+struct savage_reg {
+ unsigned char MiscOutReg; /* Misc */
+ unsigned char CRTC[25]; /* Crtc Controller */
+ unsigned char Sequencer[5]; /* Video Sequencer */
+ unsigned char Graphics[9]; /* Video Graphics */
+ unsigned char Attribute[21]; /* Video Atribute */
+ unsigned int mode, refresh;
+ unsigned char SR08, SR0E, SR0F;
+ unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30;
+ unsigned char SR54[8];
+ unsigned char Clock;
+ unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C;
+ unsigned char CR40, CR41, CR42, CR43, CR45;
+ unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E;
+ unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F;
+ unsigned char CR86, CR88;
+ unsigned char CR90, CR91, CRB0;
+ unsigned int STREAMS[22]; /* yuck, streams regs */
+ unsigned int MMPR0, MMPR1, MMPR2, MMPR3;
+};
/* --------------------------------------------------------------------- */
#define NR_PALETTE 256
@@ -167,6 +187,8 @@ struct savagefb_par {
struct pci_dev *pcidev;
savage_chipset chip;
struct savagefb_i2c_chan chan;
+ struct savage_reg state;
+ struct savage_reg save;
unsigned char *edid;
u32 pseudo_palette[16];
int paletteEnabled;
@@ -179,6 +201,7 @@ struct savagefb_par {
int minClock;
int numClocks;
int clock[4];
+ int MCLK, REFCLK, LCDclk;
struct {
u8 __iomem *vbase;
u32 pbase;
@@ -196,7 +219,6 @@ struct savagefb_par {
volatile u32 __iomem *bci_base;
unsigned int bci_ptr;
-
u32 cob_offset;
u32 cob_size;
int cob_index;
@@ -204,7 +226,6 @@ struct savagefb_par {
void (*SavageWaitIdle) (struct savagefb_par *par);
void (*SavageWaitFifo) (struct savagefb_par *par, int space);
- int MCLK, REFCLK, LCDclk;
int HorizScaleFactor;
/* Panels size */
@@ -217,26 +238,6 @@ struct savagefb_par {
int depth;
int vwidth;
-
- unsigned char MiscOutReg; /* Misc */
- unsigned char CRTC[25]; /* Crtc Controller */
- unsigned char Sequencer[5]; /* Video Sequencer */
- unsigned char Graphics[9]; /* Video Graphics */
- unsigned char Attribute[21]; /* Video Atribute */
-
- unsigned int mode, refresh;
- unsigned char SR08, SR0E, SR0F;
- unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30;
- unsigned char SR54[8];
- unsigned char Clock;
- unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C;
- unsigned char CR40, CR41, CR42, CR43, CR45;
- unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E;
- unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F;
- unsigned char CR86, CR88;
- unsigned char CR90, CR91, CRB0;
- unsigned int STREAMS[22]; /* yuck, streams regs */
- unsigned int MMPR0, MMPR1, MMPR2, MMPR3;
};
#define BCI_BD_BW_DISABLE 0x10000000
diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 0da624e6524..78883cf66a4 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -86,15 +86,15 @@ MODULE_DESCRIPTION("FBDev driver for S3 Savage PCI/AGP Chips");
/* --------------------------------------------------------------------- */
-static void vgaHWSeqReset (struct savagefb_par *par, int start)
+static void vgaHWSeqReset(struct savagefb_par *par, int start)
{
if (start)
- VGAwSEQ (0x00, 0x01, par); /* Synchronous Reset */
+ VGAwSEQ(0x00, 0x01, par); /* Synchronous Reset */
else
- VGAwSEQ (0x00, 0x03, par); /* End Reset */
+ VGAwSEQ(0x00, 0x03, par); /* End Reset */
}
-static void vgaHWProtect (struct savagefb_par *par, int on)
+static void vgaHWProtect(struct savagefb_par *par, int on)
{
unsigned char tmp;
@@ -102,10 +102,10 @@ static void vgaHWProtect (struct savagefb_par *par, int on)
/*
* Turn off screen and disable sequencer.
*/
- tmp = VGArSEQ (0x01, par);
+ tmp = VGArSEQ(0x01, par);
- vgaHWSeqReset (par, 1); /* start synchronous reset */
- VGAwSEQ (0x01, tmp | 0x20, par);/* disable the display */
+ vgaHWSeqReset(par, 1); /* start synchronous reset */
+ VGAwSEQ(0x01, tmp | 0x20, par);/* disable the display */
VGAenablePalette(par);
} else {
@@ -113,75 +113,76 @@ static void vgaHWProtect (struct savagefb_par *par, int on)
* Reenable sequencer, then turn on screen.
*/
- tmp = VGArSEQ (0x01, par);
+ tmp = VGArSEQ(0x01, par);
- VGAwSEQ (0x01, tmp & ~0x20, par);/* reenable display */
- vgaHWSeqReset (par, 0); /* clear synchronous reset */
+ VGAwSEQ(0x01, tmp & ~0x20, par);/* reenable display */
+ vgaHWSeqReset(par, 0); /* clear synchronous reset */
VGAdisablePalette(par);
}
}
-static void vgaHWRestore (struct savagefb_par *par)
+static void vgaHWRestore(struct savagefb_par *par, struct savage_reg *reg)
{
int i;
- VGAwMISC (par->MiscOutReg, par);
+ VGAwMISC(reg->MiscOutReg, par);
for (i = 1; i < 5; i++)
- VGAwSEQ (i, par->Sequencer[i], par);
+ VGAwSEQ(i, reg->Sequencer[i], par);
/* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or
CRTC[17] */
- VGAwCR (17, par->CRTC[17] & ~0x80, par);
+ VGAwCR(17, reg->CRTC[17] & ~0x80, par);
for (i = 0; i < 25; i++)
- VGAwCR (i, par->CRTC[i], par);
+ VGAwCR(i, reg->CRTC[i], par);
for (i = 0; i < 9; i++)
- VGAwGR (i, par->Graphics[i], par);
+ VGAwGR(i, reg->Graphics[i], par);
VGAenablePalette(par);
for (i = 0; i < 21; i++)
- VGAwATTR (i, par->Attribute[i], par);
+ VGAwATTR(i, reg->Attribute[i], par);
VGAdisablePalette(par);
}
-static void vgaHWInit (struct fb_var_screeninfo *var,
- struct savagefb_par *par,
- struct xtimings *timings)
+static void vgaHWInit(struct fb_var_screeninfo *var,
+ struct savagefb_par *par,
+ struct xtimings *timings,
+ struct savage_reg *reg)
{
- par->MiscOutReg = 0x23;
+ reg->MiscOutReg = 0x23;
if (!(timings->sync & FB_SYNC_HOR_HIGH_ACT))
- par->MiscOutReg |= 0x40;
+ reg->MiscOutReg |= 0x40;
if (!(timings->sync & FB_SYNC_VERT_HIGH_ACT))
- par->MiscOutReg |= 0x80;
+ reg->MiscOutReg |= 0x80;
/*
* Time Sequencer
*/
- par->Sequencer[0x00] = 0x00;
- par->Sequencer[0x01] = 0x01;
- par->Sequencer[0x02] = 0x0F;
- par->Sequencer[0x03] = 0x00; /* Font select */
- par->Sequencer[0x04] = 0x0E; /* Misc */
+ reg->Sequencer[0x00] = 0x00;
+ reg->Sequencer[0x01] = 0x01;
+ reg->Sequencer[0x02] = 0x0F;
+ reg->Sequencer[0x03] = 0x00; /* Font select */
+ reg->Sequencer[0x04] = 0x0E; /* Misc */
/*
* CRTC Controller
*/
- par->CRTC[0x00] = (timings->HTotal >> 3) - 5;
- par->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
- par->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
- par->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
- par->CRTC[0x04] = (timings->HSyncStart >> 3);
- par->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
+ reg->CRTC[0x00] = (timings->HTotal >> 3) - 5;
+ reg->CRTC[0x01] = (timings->HDisplay >> 3) - 1;
+ reg->CRTC[0x02] = (timings->HSyncStart >> 3) - 1;
+ reg->CRTC[0x03] = (((timings->HSyncEnd >> 3) - 1) & 0x1f) | 0x80;
+ reg->CRTC[0x04] = (timings->HSyncStart >> 3);
+ reg->CRTC[0x05] = ((((timings->HSyncEnd >> 3) - 1) & 0x20) << 2) |
(((timings->HSyncEnd >> 3)) & 0x1f);
- par->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
- par->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
+ reg->CRTC[0x06] = (timings->VTotal - 2) & 0xFF;
+ reg->CRTC[0x07] = (((timings->VTotal - 2) & 0x100) >> 8) |
(((timings->VDisplay - 1) & 0x100) >> 7) |
((timings->VSyncStart & 0x100) >> 6) |
(((timings->VSyncStart - 1) & 0x100) >> 5) |
@@ -189,27 +190,27 @@ static void vgaHWInit (struct fb_var_screeninfo *var,
(((timings->VTotal - 2) & 0x200) >> 4) |
(((timings->VDisplay - 1) & 0x200) >> 3) |
((timings->VSyncStart & 0x200) >> 2);
- par->CRTC[0x08] = 0x00;
- par->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
+ reg->CRTC[0x08] = 0x00;
+ reg->CRTC[0x09] = (((timings->VSyncStart - 1) & 0x200) >> 4) | 0x40;
if (timings->dblscan)
- par->CRTC[0x09] |= 0x80;
-
- par->CRTC[0x0a] = 0x00;
- par->CRTC[0x0b] = 0x00;
- par->CRTC[0x0c] = 0x00;
- par->CRTC[0x0d] = 0x00;
- par->CRTC[0x0e] = 0x00;
- par->CRTC[0x0f] = 0x00;
- par->CRTC[0x10] = timings->VSyncStart & 0xff;
- par->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
- par->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
- par->CRTC[0x13] = var->xres_virtual >> 4;
- par->CRTC[0x14] = 0x00;
- par->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
- par->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
- par->CRTC[0x17] = 0xc3;
- par->CRTC[0x18] = 0xff;
+ reg->CRTC[0x09] |= 0x80;
+
+ reg->CRTC[0x0a] = 0x00;
+ reg->CRTC[0x0b] = 0x00;
+ reg->CRTC[0x0c] = 0x00;
+ reg->CRTC[0x0d] = 0x00;
+ reg->CRTC[0x0e] = 0x00;
+ reg->CRTC[0x0f] = 0x00;
+ reg->CRTC[0x10] = timings->VSyncStart & 0xff;
+ reg->CRTC[0x11] = (timings->VSyncEnd & 0x0f) | 0x20;
+ reg->CRTC[0x12] = (timings->VDisplay - 1) & 0xff;
+ reg->CRTC[0x13] = var->xres_virtual >> 4;
+ reg->CRTC[0x14] = 0x00;
+ reg->CRTC[0x15] = (timings->VSyncStart - 1) & 0xff;
+ reg->CRTC[0x16] = (timings->VSyncEnd - 1) & 0xff;
+ reg->CRTC[0x17] = 0xc3;
+ reg->CRTC[0x18] = 0xff;
/*
* are these unnecessary?
@@ -220,38 +221,38 @@ static void vgaHWInit (struct fb_var_screeninfo *var,
/*
* Graphics Display Controller
*/
- par->Graphics[0x00] = 0x00;
- par->Graphics[0x01] = 0x00;
- par->Graphics[0x02] = 0x00;
- par->Graphics[0x03] = 0x00;
- par->Graphics[0x04] = 0x00;
- par->Graphics[0x05] = 0x40;
- par->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
- par->Graphics[0x07] = 0x0F;
- par->Graphics[0x08] = 0xFF;
-
-
- par->Attribute[0x00] = 0x00; /* standard colormap translation */
- par->Attribute[0x01] = 0x01;
- par->Attribute[0x02] = 0x02;
- par->Attribute[0x03] = 0x03;
- par->Attribute[0x04] = 0x04;
- par->Attribute[0x05] = 0x05;
- par->Attribute[0x06] = 0x06;
- par->Attribute[0x07] = 0x07;
- par->Attribute[0x08] = 0x08;
- par->Attribute[0x09] = 0x09;
- par->Attribute[0x0a] = 0x0A;
- par->Attribute[0x0b] = 0x0B;
- par->Attribute[0x0c] = 0x0C;
- par->Attribute[0x0d] = 0x0D;
- par->Attribute[0x0e] = 0x0E;
- par->Attribute[0x0f] = 0x0F;
- par->Attribute[0x10] = 0x41;
- par->Attribute[0x11] = 0xFF;
- par->Attribute[0x12] = 0x0F;
- par->Attribute[0x13] = 0x00;
- par->Attribute[0x14] = 0x00;
+ reg->Graphics[0x00] = 0x00;
+ reg->Graphics[0x01] = 0x00;
+ reg->Graphics[0x02] = 0x00;
+ reg->Graphics[0x03] = 0x00;
+ reg->Graphics[0x04] = 0x00;
+ reg->Graphics[0x05] = 0x40;
+ reg->Graphics[0x06] = 0x05; /* only map 64k VGA memory !!!! */
+ reg->Graphics[0x07] = 0x0F;
+ reg->Graphics[0x08] = 0xFF;
+
+
+ reg->Attribute[0x00] = 0x00; /* standard colormap translation */
+ reg->Attribute[0x01] = 0x01;
+ reg->Attribute[0x02] = 0x02;
+ reg->Attribute[0x03] = 0x03;
+ reg->Attribute[0x04] = 0x04;
+ reg->Attribute[0x05] = 0x05;
+ reg->Attribute[0x06] = 0x06;
+ reg->Attribute[0x07] = 0x07;
+ reg->Attribute[0x08] = 0x08;
+ reg->Attribute[0x09] = 0x09;
+ reg->Attribute[0x0a] = 0x0A;
+ reg->Attribute[0x0b] = 0x0B;
+ reg->Attribute[0x0c] = 0x0C;
+ reg->Attribute[0x0d] = 0x0D;
+ reg->Attribute[0x0e] = 0x0E;
+ reg->Attribute[0x0f] = 0x0F;
+ reg->Attribute[0x10] = 0x41;
+ reg->Attribute[0x11] = 0xFF;
+ reg->Attribute[0x12] = 0x0F;
+ reg->Attribute[0x13] = 0x00;
+ reg->Attribute[0x14] = 0x00;
}
/* -------------------- Hardware specific routines ------------------------- */
@@ -304,15 +305,15 @@ savage2000_waitidle(struct savagefb_par *par)
while ((savage_in32(0x48C60, par) & 0x009fffff));
}
-
+#ifdef CONFIG_FB_SAVAGE_ACCEL
static void
-SavageSetup2DEngine (struct savagefb_par *par)
+SavageSetup2DEngine(struct savagefb_par *par)
{
unsigned long GlobalBitmapDescriptor;
GlobalBitmapDescriptor = 1 | 8 | BCI_BD_BW_DISABLE;
- BCI_BD_SET_BPP (GlobalBitmapDescriptor, par->depth);
- BCI_BD_SET_STRIDE (GlobalBitmapDescriptor, par->vwidth);
+ BCI_BD_SET_BPP(GlobalBitmapDescriptor, par->depth);
+ BCI_BD_SET_STRIDE(GlobalBitmapDescriptor, par->vwidth);
switch(par->chip) {
case S3_SAVAGE3D:
@@ -361,32 +362,48 @@ SavageSetup2DEngine (struct savagefb_par *par)
vga_out8(0x3d5, 0x0c, par);
/* Set stride to use GBD. */
- vga_out8 (0x3d4, 0x50, par);
- vga_out8 (0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
+ vga_out8(0x3d4, 0x50, par);
+ vga_out8(0x3d5, vga_in8(0x3d5, par) | 0xC1, par);
/* Enable 2D engine. */
- vga_out8 (0x3d4, 0x40, par);
- vga_out8 (0x3d5, 0x01, par);
+ vga_out8(0x3d4, 0x40, par);
+ vga_out8(0x3d5, 0x01, par);
- savage_out32 (MONO_PAT_0, ~0, par);
- savage_out32 (MONO_PAT_1, ~0, par);
+ savage_out32(MONO_PAT_0, ~0, par);
+ savage_out32(MONO_PAT_1, ~0, par);
/* Setup plane masks */
- savage_out32 (0x8128, ~0, par); /* enable all write planes */
- savage_out32 (0x812C, ~0, par); /* enable all read planes */
- savage_out16 (0x8134, 0x27, par);
- savage_out16 (0x8136, 0x07, par);
+ savage_out32(0x8128, ~0, par); /* enable all write planes */
+ savage_out32(0x812C, ~0, par); /* enable all read planes */
+ savage_out16(0x8134, 0x27, par);
+ savage_out16(0x8136, 0x07, par);
/* Now set the GBD */
par->bci_ptr = 0;
- par->SavageWaitFifo (par, 4);
+ par->SavageWaitFifo(par, 4);
- BCI_SEND( BCI_CMD_SETREG | (1 << 16) | BCI_GBD1 );
- BCI_SEND( 0 );
- BCI_SEND( BCI_CMD_SETREG | (1 << 16) | BCI_GBD2 );
- BCI_SEND( GlobalBitmapDescriptor );
+ BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD1);
+ BCI_SEND(0);
+ BCI_SEND(BCI_CMD_SETREG | (1 << 16) | BCI_GBD2);
+ BCI_SEND(GlobalBitmapDescriptor);
}
+static void savagefb_set_clip(struct fb_info *info)
+{
+ struct savagefb_par *par = info->par;
+ int cmd;
+
+ cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
+ par->bci_ptr = 0;
+ par->SavageWaitFifo(par,3);
+ BCI_SEND(cmd);
+ BCI_SEND(BCI_CLIP_TL(0, 0));
+ BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
+}
+#else
+static void SavageSetup2DEngine(struct savagefb_par *par) {}
+
+#endif
static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
int min_n2, int max_n2, long freq_min,
@@ -398,11 +415,11 @@ static void SavageCalcClock(long freq, int min_m, int min_n1, int max_n1,
unsigned char n1, n2, best_n1=16+2, best_n2=2, best_m=125+2;
if (freq < freq_min / (1 << max_n2)) {
- printk (KERN_ERR "invalid frequency %ld Khz\n", freq);
+ printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
freq = freq_min / (1 << max_n2);
}
if (freq > freq_max / (1 << min_n2)) {
- printk (KERN_ERR "invalid frequency %ld Khz\n", freq);
+ printk(KERN_ERR "invalid frequency %ld Khz\n", freq);
freq = freq_max / (1 << min_n2);
}
@@ -453,12 +470,12 @@ static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
BASE_FREQ;
if (m < min_m + 2 || m > 127+2)
continue;
- if((m * BASE_FREQ >= freq_min * n1) &&
- (m * BASE_FREQ <= freq_max * n1)) {
+ if ((m * BASE_FREQ >= freq_min * n1) &&
+ (m * BASE_FREQ <= freq_max * n1)) {
diff = freq * (1 << n2) * n1 - BASE_FREQ * m;
- if(diff < 0)
+ if (diff < 0)
diff = -diff;
- if(diff < best_diff) {
+ if (diff < best_diff) {
best_diff = diff;
best_m = m;
best_n1 = n1;
@@ -468,7 +485,7 @@ static int common_calc_clock(long freq, int min_m, int min_n1, int max_n1,
}
}
- if(max_n1 == 63)
+ if (max_n1 == 63)
*ndiv = (best_n1 - 2) | (best_n2 << 6);
else
*ndiv = (best_n1 - 2) | (best_n2 << 5);
@@ -488,23 +505,23 @@ static void SavagePrintRegs(void)
int vgaCRReg = 0x3d5;
printk(KERN_DEBUG "SR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE "
- "xF" );
+ "xF");
- for( i = 0; i < 0x70; i++ ) {
- if( !(i % 16) )
- printk(KERN_DEBUG "\nSR%xx ", i >> 4 );
- vga_out8( 0x3c4, i, par);
- printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par) );
+ for (i = 0; i < 0x70; i++) {
+ if (!(i % 16))
+ printk(KERN_DEBUG "\nSR%xx ", i >> 4);
+ vga_out8(0x3c4, i, par);
+ printk(KERN_DEBUG " %02x", vga_in8(0x3c5, par));
}
printk(KERN_DEBUG "\n\nCR x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC "
- "xD xE xF" );
+ "xD xE xF");
- for( i = 0; i < 0xB7; i++ ) {
- if( !(i % 16) )
- printk(KERN_DEBUG "\nCR%xx ", i >> 4 );
- vga_out8( vgaCRIndex, i, par);
- printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par) );
+ for (i = 0; i < 0xB7; i++) {
+ if (!(i % 16))
+ printk(KERN_DEBUG "\nCR%xx ", i >> 4);
+ vga_out8(vgaCRIndex, i, par);
+ printk(KERN_DEBUG " %02x", vga_in8(vgaCRReg, par));
}
printk(KERN_DEBUG "\n\n");
@@ -513,156 +530,309 @@ static void SavagePrintRegs(void)
/* --------------------------------------------------------------------- */
-static void savage_get_default_par(struct savagefb_par *par)
+static void savage_get_default_par(struct savagefb_par *par, struct savage_reg *reg)
{
unsigned char cr3a, cr53, cr66;
- vga_out16 (0x3d4, 0x4838, par);
- vga_out16 (0x3d4, 0xa039, par);
- vga_out16 (0x3c4, 0x0608, par);
-
- vga_out8 (0x3d4, 0x66, par);
- cr66 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr66 | 0x80, par);
- vga_out8 (0x3d4, 0x3a, par);
- cr3a = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr3a | 0x80, par);
- vga_out8 (0x3d4, 0x53, par);
- cr53 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr53 & 0x7f, par);
-
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, cr66, par);
- vga_out8 (0x3d4, 0x3a, par);
- vga_out8 (0x3d5, cr3a, par);
-
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, cr66, par);
- vga_out8 (0x3d4, 0x3a, par);
- vga_out8 (0x3d5, cr3a, par);
+ vga_out16(0x3d4, 0x4838, par);
+ vga_out16(0x3d4, 0xa039, par);
+ vga_out16(0x3c4, 0x0608, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x80, par);
+ vga_out8(0x3d4, 0x3a, par);
+ cr3a = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3a | 0x80, par);
+ vga_out8(0x3d4, 0x53, par);
+ cr53 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr53 & 0x7f, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
/* unlock extended seq regs */
- vga_out8 (0x3c4, 0x08, par);
- par->SR08 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c5, 0x06, par);
+ vga_out8(0x3c4, 0x08, par);
+ reg->SR08 = vga_in8(0x3c5, par);
+ vga_out8(0x3c5, 0x06, par);
/* now save all the extended regs we need */
- vga_out8 (0x3d4, 0x31, par);
- par->CR31 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x32, par);
- par->CR32 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x34, par);
- par->CR34 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x36, par);
- par->CR36 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x3a, par);
- par->CR3A = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x40, par);
- par->CR40 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x42, par);
- par->CR42 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x45, par);
- par->CR45 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x50, par);
- par->CR50 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x51, par);
- par->CR51 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x53, par);
- par->CR53 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x58, par);
- par->CR58 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x60, par);
- par->CR60 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x66, par);
- par->CR66 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x67, par);
- par->CR67 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x68, par);
- par->CR68 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x69, par);
- par->CR69 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x6f, par);
- par->CR6F = vga_in8 (0x3d5, par);
-
- vga_out8 (0x3d4, 0x33, par);
- par->CR33 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x86, par);
- par->CR86 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x88, par);
- par->CR88 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x90, par);
- par->CR90 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x91, par);
- par->CR91 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0xb0, par);
- par->CRB0 = vga_in8 (0x3d5, par) | 0x80;
+ vga_out8(0x3d4, 0x31, par);
+ reg->CR31 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x32, par);
+ reg->CR32 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x34, par);
+ reg->CR34 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x36, par);
+ reg->CR36 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x3a, par);
+ reg->CR3A = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x40, par);
+ reg->CR40 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x42, par);
+ reg->CR42 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x45, par);
+ reg->CR45 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x50, par);
+ reg->CR50 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x51, par);
+ reg->CR51 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x53, par);
+ reg->CR53 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x58, par);
+ reg->CR58 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x60, par);
+ reg->CR60 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x66, par);
+ reg->CR66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x67, par);
+ reg->CR67 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x68, par);
+ reg->CR68 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x69, par);
+ reg->CR69 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x6f, par);
+ reg->CR6F = vga_in8(0x3d5, par);
+
+ vga_out8(0x3d4, 0x33, par);
+ reg->CR33 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x86, par);
+ reg->CR86 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x88, par);
+ reg->CR88 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x90, par);
+ reg->CR90 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x91, par);
+ reg->CR91 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0xb0, par);
+ reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
+
+ /* extended mode timing regs */
+ vga_out8(0x3d4, 0x3b, par);
+ reg->CR3B = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x3c, par);
+ reg->CR3C = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x43, par);
+ reg->CR43 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x5d, par);
+ reg->CR5D = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x5e, par);
+ reg->CR5E = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x65, par);
+ reg->CR65 = vga_in8(0x3d5, par);
+
+ /* save seq extended regs for DCLK PLL programming */
+ vga_out8(0x3c4, 0x0e, par);
+ reg->SR0E = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x0f, par);
+ reg->SR0F = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x10, par);
+ reg->SR10 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x11, par);
+ reg->SR11 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x12, par);
+ reg->SR12 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x13, par);
+ reg->SR13 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x29, par);
+ reg->SR29 = vga_in8(0x3c5, par);
+
+ vga_out8(0x3c4, 0x15, par);
+ reg->SR15 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x30, par);
+ reg->SR30 = vga_in8(0x3c5, par);
+ vga_out8(0x3c4, 0x18, par);
+ reg->SR18 = vga_in8(0x3c5, par);
+
+ /* Save flat panel expansion regsters. */
+ if (par->chip == S3_SAVAGE_MX) {
+ int i;
+
+ for (i = 0; i < 8; i++) {
+ vga_out8(0x3c4, 0x54+i, par);
+ reg->SR54[i] = vga_in8(0x3c5, par);
+ }
+ }
+
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x80, par);
+ vga_out8(0x3d4, 0x3a, par);
+ cr3a = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3a | 0x80, par);
+
+ /* now save MIU regs */
+ if (par->chip != S3_SAVAGE_MX) {
+ reg->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
+ reg->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
+ reg->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
+ reg->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
+ }
+
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+}
+
+static void savage_set_default_par(struct savagefb_par *par,
+ struct savage_reg *reg)
+{
+ unsigned char cr3a, cr53, cr66;
+
+ vga_out16(0x3d4, 0x4838, par);
+ vga_out16(0x3d4, 0xa039, par);
+ vga_out16(0x3c4, 0x0608, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x80, par);
+ vga_out8(0x3d4, 0x3a, par);
+ cr3a = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3a | 0x80, par);
+ vga_out8(0x3d4, 0x53, par);
+ cr53 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr53 & 0x7f, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
+
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
+
+ /* unlock extended seq regs */
+ vga_out8(0x3c4, 0x08, par);
+ vga_out8(0x3c5, reg->SR08, par);
+ vga_out8(0x3c5, 0x06, par);
+
+ /* now restore all the extended regs we need */
+ vga_out8(0x3d4, 0x31, par);
+ vga_out8(0x3d5, reg->CR31, par);
+ vga_out8(0x3d4, 0x32, par);
+ vga_out8(0x3d5, reg->CR32, par);
+ vga_out8(0x3d4, 0x34, par);
+ vga_out8(0x3d5, reg->CR34, par);
+ vga_out8(0x3d4, 0x36, par);
+ vga_out8(0x3d5,reg->CR36, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, reg->CR3A, par);
+ vga_out8(0x3d4, 0x40, par);
+ vga_out8(0x3d5, reg->CR40, par);
+ vga_out8(0x3d4, 0x42, par);
+ vga_out8(0x3d5, reg->CR42, par);
+ vga_out8(0x3d4, 0x45, par);
+ vga_out8(0x3d5, reg->CR45, par);
+ vga_out8(0x3d4, 0x50, par);
+ vga_out8(0x3d5, reg->CR50, par);
+ vga_out8(0x3d4, 0x51, par);
+ vga_out8(0x3d5, reg->CR51, par);
+ vga_out8(0x3d4, 0x53, par);
+ vga_out8(0x3d5, reg->CR53, par);
+ vga_out8(0x3d4, 0x58, par);
+ vga_out8(0x3d5, reg->CR58, par);
+ vga_out8(0x3d4, 0x60, par);
+ vga_out8(0x3d5, reg->CR60, par);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, reg->CR66, par);
+ vga_out8(0x3d4, 0x67, par);
+ vga_out8(0x3d5, reg->CR67, par);
+ vga_out8(0x3d4, 0x68, par);
+ vga_out8(0x3d5, reg->CR68, par);
+ vga_out8(0x3d4, 0x69, par);
+ vga_out8(0x3d5, reg->CR69, par);
+ vga_out8(0x3d4, 0x6f, par);
+ vga_out8(0x3d5, reg->CR6F, par);
+
+ vga_out8(0x3d4, 0x33, par);
+ vga_out8(0x3d5, reg->CR33, par);
+ vga_out8(0x3d4, 0x86, par);
+ vga_out8(0x3d5, reg->CR86, par);
+ vga_out8(0x3d4, 0x88, par);
+ vga_out8(0x3d5, reg->CR88, par);
+ vga_out8(0x3d4, 0x90, par);
+ vga_out8(0x3d5, reg->CR90, par);
+ vga_out8(0x3d4, 0x91, par);
+ vga_out8(0x3d5, reg->CR91, par);
+ vga_out8(0x3d4, 0xb0, par);
+ vga_out8(0x3d5, reg->CRB0, par);
/* extended mode timing regs */
- vga_out8 (0x3d4, 0x3b, par);
- par->CR3B = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x3c, par);
- par->CR3C = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x43, par);
- par->CR43 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x5d, par);
- par->CR5D = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x5e, par);
- par->CR5E = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x65, par);
- par->CR65 = vga_in8 (0x3d5, par);
+ vga_out8(0x3d4, 0x3b, par);
+ vga_out8(0x3d5, reg->CR3B, par);
+ vga_out8(0x3d4, 0x3c, par);
+ vga_out8(0x3d5, reg->CR3C, par);
+ vga_out8(0x3d4, 0x43, par);
+ vga_out8(0x3d5, reg->CR43, par);
+ vga_out8(0x3d4, 0x5d, par);
+ vga_out8(0x3d5, reg->CR5D, par);
+ vga_out8(0x3d4, 0x5e, par);
+ vga_out8(0x3d5, reg->CR5E, par);
+ vga_out8(0x3d4, 0x65, par);
+ vga_out8(0x3d5, reg->CR65, par);
/* save seq extended regs for DCLK PLL programming */
- vga_out8 (0x3c4, 0x0e, par);
- par->SR0E = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x0f, par);
- par->SR0F = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x10, par);
- par->SR10 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x11, par);
- par->SR11 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x12, par);
- par->SR12 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x13, par);
- par->SR13 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x29, par);
- par->SR29 = vga_in8 (0x3c5, par);
-
- vga_out8 (0x3c4, 0x15, par);
- par->SR15 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x30, par);
- par->SR30 = vga_in8 (0x3c5, par);
- vga_out8 (0x3c4, 0x18, par);
- par->SR18 = vga_in8 (0x3c5, par);
+ vga_out8(0x3c4, 0x0e, par);
+ vga_out8(0x3c5, reg->SR0E, par);
+ vga_out8(0x3c4, 0x0f, par);
+ vga_out8(0x3c5, reg->SR0F, par);
+ vga_out8(0x3c4, 0x10, par);
+ vga_out8(0x3c5, reg->SR10, par);
+ vga_out8(0x3c4, 0x11, par);
+ vga_out8(0x3c5, reg->SR11, par);
+ vga_out8(0x3c4, 0x12, par);
+ vga_out8(0x3c5, reg->SR12, par);
+ vga_out8(0x3c4, 0x13, par);
+ vga_out8(0x3c5, reg->SR13, par);
+ vga_out8(0x3c4, 0x29, par);
+ vga_out8(0x3c5, reg->SR29, par);
+
+ vga_out8(0x3c4, 0x15, par);
+ vga_out8(0x3c5, reg->SR15, par);
+ vga_out8(0x3c4, 0x30, par);
+ vga_out8(0x3c5, reg->SR30, par);
+ vga_out8(0x3c4, 0x18, par);
+ vga_out8(0x3c5, reg->SR18, par);
/* Save flat panel expansion regsters. */
if (par->chip == S3_SAVAGE_MX) {
int i;
for (i = 0; i < 8; i++) {
- vga_out8 (0x3c4, 0x54+i, par);
- par->SR54[i] = vga_in8 (0x3c5, par);
+ vga_out8(0x3c4, 0x54+i, par);
+ vga_out8(0x3c5, reg->SR54[i], par);
}
}
- vga_out8 (0x3d4, 0x66, par);
- cr66 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr66 | 0x80, par);
- vga_out8 (0x3d4, 0x3a, par);
- cr3a = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr3a | 0x80, par);
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x80, par);
+ vga_out8(0x3d4, 0x3a, par);
+ cr3a = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3a | 0x80, par);
/* now save MIU regs */
if (par->chip != S3_SAVAGE_MX) {
- par->MMPR0 = savage_in32(FIFO_CONTROL_REG, par);
- par->MMPR1 = savage_in32(MIU_CONTROL_REG, par);
- par->MMPR2 = savage_in32(STREAMS_TIMEOUT_REG, par);
- par->MMPR3 = savage_in32(MISC_TIMEOUT_REG, par);
+ savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
+ savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
+ savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
+ savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
}
- vga_out8 (0x3d4, 0x3a, par);
- vga_out8 (0x3d5, cr3a, par);
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
}
static void savage_update_var(struct fb_var_screeninfo *var, struct fb_videomode *modedb)
@@ -683,8 +853,8 @@ static void savage_update_var(struct fb_var_screeninfo *var, struct fb_videomode
var->vmode = modedb->vmode;
}
-static int savagefb_check_var (struct fb_var_screeninfo *var,
- struct fb_info *info)
+static int savagefb_check_var(struct fb_var_screeninfo *var,
+ struct fb_info *info)
{
struct savagefb_par *par = info->par;
int memlen, vramlen, mode_valid = 0;
@@ -750,10 +920,10 @@ static int savagefb_check_var (struct fb_var_screeninfo *var,
if (par->SavagePanelWidth &&
(var->xres > par->SavagePanelWidth ||
var->yres > par->SavagePanelHeight)) {
- printk (KERN_INFO "Mode (%dx%d) larger than the LCD panel "
- "(%dx%d)\n", var->xres, var->yres,
- par->SavagePanelWidth,
- par->SavagePanelHeight);
+ printk(KERN_INFO "Mode (%dx%d) larger than the LCD panel "
+ "(%dx%d)\n", var->xres, var->yres,
+ par->SavagePanelWidth,
+ par->SavagePanelHeight);
return -1;
}
@@ -788,8 +958,9 @@ static int savagefb_check_var (struct fb_var_screeninfo *var,
}
-static int savagefb_decode_var (struct fb_var_screeninfo *var,
- struct savagefb_par *par)
+static int savagefb_decode_var(struct fb_var_screeninfo *var,
+ struct savagefb_par *par,
+ struct savage_reg *reg)
{
struct xtimings timings;
int width, dclk, i, j; /*, refresh; */
@@ -799,7 +970,7 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var,
DBG("savagefb_decode_var");
- memset (&timings, 0, sizeof(timings));
+ memset(&timings, 0, sizeof(timings));
if (!pixclock) pixclock = 10000; /* 10ns = 100MHz */
timings.Clock = 1000000000 / pixclock;
@@ -831,39 +1002,39 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var,
* This will allocate the datastructure and initialize all of the
* generic VGA registers.
*/
- vgaHWInit (var, par, &timings);
+ vgaHWInit(var, par, &timings, reg);
/* We need to set CR67 whether or not we use the BIOS. */
dclk = timings.Clock;
- par->CR67 = 0x00;
+ reg->CR67 = 0x00;
- switch( var->bits_per_pixel ) {
+ switch(var->bits_per_pixel) {
case 8:
- if( (par->chip == S3_SAVAGE2000) && (dclk >= 230000) )
- par->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
+ if ((par->chip == S3_SAVAGE2000) && (dclk >= 230000))
+ reg->CR67 = 0x10; /* 8bpp, 2 pixels/clock */
else
- par->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
+ reg->CR67 = 0x00; /* 8bpp, 1 pixel/clock */
break;
case 15:
- if ( S3_SAVAGE_MOBILE_SERIES(par->chip) ||
- ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) )
- par->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
+ if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
+ ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
+ reg->CR67 = 0x30; /* 15bpp, 2 pixel/clock */
else
- par->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
+ reg->CR67 = 0x20; /* 15bpp, 1 pixels/clock */
break;
case 16:
- if( S3_SAVAGE_MOBILE_SERIES(par->chip) ||
- ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)) )
- par->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
+ if (S3_SAVAGE_MOBILE_SERIES(par->chip) ||
+ ((par->chip == S3_SAVAGE2000) && (dclk >= 230000)))
+ reg->CR67 = 0x50; /* 16bpp, 2 pixel/clock */
else
- par->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
+ reg->CR67 = 0x40; /* 16bpp, 1 pixels/clock */
break;
case 24:
- par->CR67 = 0x70;
+ reg->CR67 = 0x70;
break;
case 32:
- par->CR67 = 0xd0;
+ reg->CR67 = 0xd0;
break;
}
@@ -872,61 +1043,61 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var,
* match. Fall back to traditional register-crunching.
*/
- vga_out8 (0x3d4, 0x3a, par);
- tmp = vga_in8 (0x3d5, par);
+ vga_out8(0x3d4, 0x3a, par);
+ tmp = vga_in8(0x3d5, par);
if (1 /*FIXME:psav->pci_burst*/)
- par->CR3A = (tmp & 0x7f) | 0x15;
+ reg->CR3A = (tmp & 0x7f) | 0x15;
else
- par->CR3A = tmp | 0x95;
+ reg->CR3A = tmp | 0x95;
- par->CR53 = 0x00;
- par->CR31 = 0x8c;
- par->CR66 = 0x89;
+ reg->CR53 = 0x00;
+ reg->CR31 = 0x8c;
+ reg->CR66 = 0x89;
- vga_out8 (0x3d4, 0x58, par);
- par->CR58 = vga_in8 (0x3d5, par) & 0x80;
- par->CR58 |= 0x13;
+ vga_out8(0x3d4, 0x58, par);
+ reg->CR58 = vga_in8(0x3d5, par) & 0x80;
+ reg->CR58 |= 0x13;
- par->SR15 = 0x03 | 0x80;
- par->SR18 = 0x00;
- par->CR43 = par->CR45 = par->CR65 = 0x00;
+ reg->SR15 = 0x03 | 0x80;
+ reg->SR18 = 0x00;
+ reg->CR43 = reg->CR45 = reg->CR65 = 0x00;
- vga_out8 (0x3d4, 0x40, par);
- par->CR40 = vga_in8 (0x3d5, par) & ~0x01;
+ vga_out8(0x3d4, 0x40, par);
+ reg->CR40 = vga_in8(0x3d5, par) & ~0x01;
- par->MMPR0 = 0x010400;
- par->MMPR1 = 0x00;
- par->MMPR2 = 0x0808;
- par->MMPR3 = 0x08080810;
+ reg->MMPR0 = 0x010400;
+ reg->MMPR1 = 0x00;
+ reg->MMPR2 = 0x0808;
+ reg->MMPR3 = 0x08080810;
- SavageCalcClock (dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
+ SavageCalcClock(dclk, 1, 1, 127, 0, 4, 180000, 360000, &m, &n, &r);
/* m = 107; n = 4; r = 2; */
if (par->MCLK <= 0) {
- par->SR10 = 255;
- par->SR11 = 255;
+ reg->SR10 = 255;
+ reg->SR11 = 255;
} else {
- common_calc_clock (par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
- &par->SR11, &par->SR10);
- /* par->SR10 = 80; // MCLK == 286000 */
- /* par->SR11 = 125; */
+ common_calc_clock(par->MCLK, 1, 1, 31, 0, 3, 135000, 270000,
+ &reg->SR11, &reg->SR10);
+ /* reg->SR10 = 80; // MCLK == 286000 */
+ /* reg->SR11 = 125; */
}
- par->SR12 = (r << 6) | (n & 0x3f);
- par->SR13 = m & 0xff;
- par->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
+ reg->SR12 = (r << 6) | (n & 0x3f);
+ reg->SR13 = m & 0xff;
+ reg->SR29 = (r & 4) | (m & 0x100) >> 5 | (n & 0x40) >> 2;
if (var->bits_per_pixel < 24)
- par->MMPR0 -= 0x8000;
+ reg->MMPR0 -= 0x8000;
else
- par->MMPR0 -= 0x4000;
+ reg->MMPR0 -= 0x4000;
if (timings.interlaced)
- par->CR42 = 0x20;
+ reg->CR42 = 0x20;
else
- par->CR42 = 0x00;
+ reg->CR42 = 0x00;
- par->CR34 = 0x10; /* display fifo */
+ reg->CR34 = 0x10; /* display fifo */
i = ((((timings.HTotal >> 3) - 5) & 0x100) >> 8) |
((((timings.HDisplay >> 3) - 1) & 0x100) >> 7) |
@@ -938,77 +1109,77 @@ static int savagefb_decode_var (struct fb_var_screeninfo *var,
if ((timings.HSyncEnd >> 3) - (timings.HSyncStart >> 3) > 32)
i |= 0x20;
- j = (par->CRTC[0] + ((i & 0x01) << 8) +
- par->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
+ j = (reg->CRTC[0] + ((i & 0x01) << 8) +
+ reg->CRTC[4] + ((i & 0x10) << 4) + 1) / 2;
- if (j - (par->CRTC[4] + ((i & 0x10) << 4)) < 4) {
- if (par->CRTC[4] + ((i & 0x10) << 4) + 4 <=
- par->CRTC[0] + ((i & 0x01) << 8))
- j = par->CRTC[4] + ((i & 0x10) << 4) + 4;
+ if (j - (reg->CRTC[4] + ((i & 0x10) << 4)) < 4) {
+ if (reg->CRTC[4] + ((i & 0x10) << 4) + 4 <=
+ reg->CRTC[0] + ((i & 0x01) << 8))
+ j = reg->CRTC[4] + ((i & 0x10) << 4) + 4;
else
- j = par->CRTC[0] + ((i & 0x01) << 8) + 1;
+ j = reg->CRTC[0] + ((i & 0x01) << 8) + 1;
}
- par->CR3B = j & 0xff;
+ reg->CR3B = j & 0xff;
i |= (j & 0x100) >> 2;
- par->CR3C = (par->CRTC[0] + ((i & 0x01) << 8)) / 2;
- par->CR5D = i;
- par->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
+ reg->CR3C = (reg->CRTC[0] + ((i & 0x01) << 8)) / 2;
+ reg->CR5D = i;
+ reg->CR5E = (((timings.VTotal - 2) & 0x400) >> 10) |
(((timings.VDisplay - 1) & 0x400) >> 9) |
(((timings.VSyncStart) & 0x400) >> 8) |
(((timings.VSyncStart) & 0x400) >> 6) | 0x40;
width = (var->xres_virtual * ((var->bits_per_pixel+7) / 8)) >> 3;
- par->CR91 = par->CRTC[19] = 0xff & width;
- par->CR51 = (0x300 & width) >> 4;
- par->CR90 = 0x80 | (width >> 8);
- par->MiscOutReg |= 0x0c;
+ reg->CR91 = reg->CRTC[19] = 0xff & width;
+ reg->CR51 = (0x300 & width) >> 4;
+ reg->CR90 = 0x80 | (width >> 8);
+ reg->MiscOutReg |= 0x0c;
/* Set frame buffer description. */
if (var->bits_per_pixel <= 8)
- par->CR50 = 0;
+ reg->CR50 = 0;
else if (var->bits_per_pixel <= 16)
- par->CR50 = 0x10;
+ reg->CR50 = 0x10;
else
- par->CR50 = 0x30;
+ reg->CR50 = 0x30;
if (var->xres_virtual <= 640)
- par->CR50 |= 0x40;
+ reg->CR50 |= 0x40;
else if (var->xres_virtual == 800)
- par->CR50 |= 0x80;
+ reg->CR50 |= 0x80;
else if (var->xres_virtual == 1024)
- par->CR50 |= 0x00;
+ reg->CR50 |= 0x00;
else if (var->xres_virtual == 1152)
- par->CR50 |= 0x01;
+ reg->CR50 |= 0x01;
else if (var->xres_virtual == 1280)
- par->CR50 |= 0xc0;
+ reg->CR50 |= 0xc0;
else if (var->xres_virtual == 1600)
- par->CR50 |= 0x81;
+ reg->CR50 |= 0x81;
else
- par->CR50 |= 0xc1; /* Use GBD */
+ reg->CR50 |= 0xc1; /* Use GBD */
- if( par->chip == S3_SAVAGE2000 )
- par->CR33 = 0x08;
+ if (par->chip == S3_SAVAGE2000)
+ reg->CR33 = 0x08;
else
- par->CR33 = 0x20;
+ reg->CR33 = 0x20;
- par->CRTC[0x17] = 0xeb;
+ reg->CRTC[0x17] = 0xeb;
- par->CR67 |= 1;
+ reg->CR67 |= 1;
vga_out8(0x3d4, 0x36, par);
- par->CR36 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x68, par);
- par->CR68 = vga_in8 (0x3d5, par);
- par->CR69 = 0;
- vga_out8 (0x3d4, 0x6f, par);
- par->CR6F = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x86, par);
- par->CR86 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d4, 0x88, par);
- par->CR88 = vga_in8 (0x3d5, par) | 0x08;
- vga_out8 (0x3d4, 0xb0, par);
- par->CRB0 = vga_in8 (0x3d5, par) | 0x80;
+ reg->CR36 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x68, par);
+ reg->CR68 = vga_in8(0x3d5, par);
+ reg->CR69 = 0;
+ vga_out8(0x3d4, 0x6f, par);
+ reg->CR6F = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x86, par);
+ reg->CR86 = vga_in8(0x3d5, par);
+ vga_out8(0x3d4, 0x88, par);
+ reg->CR88 = vga_in8(0x3d5, par) | 0x08;
+ vga_out8(0x3d4, 0xb0, par);
+ reg->CRB0 = vga_in8(0x3d5, par) | 0x80;
return 0;
}
@@ -1037,11 +1208,11 @@ static int savagefb_setcolreg(unsigned regno,
switch (info->var.bits_per_pixel) {
case 8:
- vga_out8 (0x3c8, regno, par);
+ vga_out8(0x3c8, regno, par);
- vga_out8 (0x3c9, red >> 10, par);
- vga_out8 (0x3c9, green >> 10, par);
- vga_out8 (0x3c9, blue >> 10, par);
+ vga_out8(0x3c9, red >> 10, par);
+ vga_out8(0x3c9, green >> 10, par);
+ vga_out8(0x3c9, blue >> 10, par);
break;
case 16:
@@ -1075,21 +1246,21 @@ static int savagefb_setcolreg(unsigned regno,
return 0;
}
-static void savagefb_set_par_int (struct savagefb_par *par)
+static void savagefb_set_par_int(struct savagefb_par *par, struct savage_reg *reg)
{
unsigned char tmp, cr3a, cr66, cr67;
- DBG ("savagefb_set_par_int");
+ DBG("savagefb_set_par_int");
- par->SavageWaitIdle (par);
+ par->SavageWaitIdle(par);
- vga_out8 (0x3c2, 0x23, par);
+ vga_out8(0x3c2, 0x23, par);
- vga_out16 (0x3d4, 0x4838, par);
- vga_out16 (0x3d4, 0xa539, par);
- vga_out16 (0x3c4, 0x0608, par);
+ vga_out16(0x3d4, 0x4838, par);
+ vga_out16(0x3d4, 0xa539, par);
+ vga_out16(0x3c4, 0x0608, par);
- vgaHWProtect (par, 1);
+ vgaHWProtect(par, 1);
/*
* Some Savage/MX and /IX systems go nuts when trying to exit the
@@ -1099,203 +1270,202 @@ static void savagefb_set_par_int (struct savagefb_par *par)
*/
VerticalRetraceWait(par);
- vga_out8 (0x3d4, 0x67, par);
- cr67 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
+ vga_out8(0x3d4, 0x67, par);
+ cr67 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr67/*par->CR67*/ & ~0x0c, par); /* no STREAMS yet */
- vga_out8 (0x3d4, 0x23, par);
- vga_out8 (0x3d5, 0x00, par);
- vga_out8 (0x3d4, 0x26, par);
- vga_out8 (0x3d5, 0x00, par);
+ vga_out8(0x3d4, 0x23, par);
+ vga_out8(0x3d5, 0x00, par);
+ vga_out8(0x3d4, 0x26, par);
+ vga_out8(0x3d5, 0x00, par);
/* restore extended regs */
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, par->CR66, par);
- vga_out8 (0x3d4, 0x3a, par);
- vga_out8 (0x3d5, par->CR3A, par);
- vga_out8 (0x3d4, 0x31, par);
- vga_out8 (0x3d5, par->CR31, par);
- vga_out8 (0x3d4, 0x32, par);
- vga_out8 (0x3d5, par->CR32, par);
- vga_out8 (0x3d4, 0x58, par);
- vga_out8 (0x3d5, par->CR58, par);
- vga_out8 (0x3d4, 0x53, par);
- vga_out8 (0x3d5, par->CR53 & 0x7f, par);
-
- vga_out16 (0x3c4, 0x0608, par);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, reg->CR66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, reg->CR3A, par);
+ vga_out8(0x3d4, 0x31, par);
+ vga_out8(0x3d5, reg->CR31, par);
+ vga_out8(0x3d4, 0x32, par);
+ vga_out8(0x3d5, reg->CR32, par);
+ vga_out8(0x3d4, 0x58, par);
+ vga_out8(0x3d5, reg->CR58, par);
+ vga_out8(0x3d4, 0x53, par);
+ vga_out8(0x3d5, reg->CR53 & 0x7f, par);
+
+ vga_out16(0x3c4, 0x0608, par);
/* Restore DCLK registers. */
- vga_out8 (0x3c4, 0x0e, par);
- vga_out8 (0x3c5, par->SR0E, par);
- vga_out8 (0x3c4, 0x0f, par);
- vga_out8 (0x3c5, par->SR0F, par);
- vga_out8 (0x3c4, 0x29, par);
- vga_out8 (0x3c5, par->SR29, par);
- vga_out8 (0x3c4, 0x15, par);
- vga_out8 (0x3c5, par->SR15, par);
+ vga_out8(0x3c4, 0x0e, par);
+ vga_out8(0x3c5, reg->SR0E, par);
+ vga_out8(0x3c4, 0x0f, par);
+ vga_out8(0x3c5, reg->SR0F, par);
+ vga_out8(0x3c4, 0x29, par);
+ vga_out8(0x3c5, reg->SR29, par);
+ vga_out8(0x3c4, 0x15, par);
+ vga_out8(0x3c5, reg->SR15, par);
/* Restore flat panel expansion regsters. */
- if( par->chip == S3_SAVAGE_MX ) {
+ if (par->chip == S3_SAVAGE_MX) {
int i;
- for( i = 0; i < 8; i++ ) {
- vga_out8 (0x3c4, 0x54+i, par);
- vga_out8 (0x3c5, par->SR54[i], par);
+ for (i = 0; i < 8; i++) {
+ vga_out8(0x3c4, 0x54+i, par);
+ vga_out8(0x3c5, reg->SR54[i], par);
}
}
- vgaHWRestore (par);
+ vgaHWRestore (par, reg);
/* extended mode timing registers */
- vga_out8 (0x3d4, 0x53, par);
- vga_out8 (0x3d5, par->CR53, par);
- vga_out8 (0x3d4, 0x5d, par);
- vga_out8 (0x3d5, par->CR5D, par);
- vga_out8 (0x3d4, 0x5e, par);
- vga_out8 (0x3d5, par->CR5E, par);
- vga_out8 (0x3d4, 0x3b, par);
- vga_out8 (0x3d5, par->CR3B, par);
- vga_out8 (0x3d4, 0x3c, par);
- vga_out8 (0x3d5, par->CR3C, par);
- vga_out8 (0x3d4, 0x43, par);
- vga_out8 (0x3d5, par->CR43, par);
- vga_out8 (0x3d4, 0x65, par);
- vga_out8 (0x3d5, par->CR65, par);
+ vga_out8(0x3d4, 0x53, par);
+ vga_out8(0x3d5, reg->CR53, par);
+ vga_out8(0x3d4, 0x5d, par);
+ vga_out8(0x3d5, reg->CR5D, par);
+ vga_out8(0x3d4, 0x5e, par);
+ vga_out8(0x3d5, reg->CR5E, par);
+ vga_out8(0x3d4, 0x3b, par);
+ vga_out8(0x3d5, reg->CR3B, par);
+ vga_out8(0x3d4, 0x3c, par);
+ vga_out8(0x3d5, reg->CR3C, par);
+ vga_out8(0x3d4, 0x43, par);
+ vga_out8(0x3d5, reg->CR43, par);
+ vga_out8(0x3d4, 0x65, par);
+ vga_out8(0x3d5, reg->CR65, par);
/* restore the desired video mode with cr67 */
- vga_out8 (0x3d4, 0x67, par);
+ vga_out8(0x3d4, 0x67, par);
/* following part not present in X11 driver */
- cr67 = vga_in8 (0x3d5, par) & 0xf;
- vga_out8 (0x3d5, 0x50 | cr67, par);
- udelay (10000);
- vga_out8 (0x3d4, 0x67, par);
+ cr67 = vga_in8(0x3d5, par) & 0xf;
+ vga_out8(0x3d5, 0x50 | cr67, par);
+ udelay(10000);
+ vga_out8(0x3d4, 0x67, par);
/* end of part */
- vga_out8 (0x3d5, par->CR67 & ~0x0c, par);
+ vga_out8(0x3d5, reg->CR67 & ~0x0c, par);
/* other mode timing and extended regs */
- vga_out8 (0x3d4, 0x34, par);
- vga_out8 (0x3d5, par->CR34, par);
- vga_out8 (0x3d4, 0x40, par);
- vga_out8 (0x3d5, par->CR40, par);
- vga_out8 (0x3d4, 0x42, par);
- vga_out8 (0x3d5, par->CR42, par);
- vga_out8 (0x3d4, 0x45, par);
- vga_out8 (0x3d5, par->CR45, par);
- vga_out8 (0x3d4, 0x50, par);
- vga_out8 (0x3d5, par->CR50, par);
- vga_out8 (0x3d4, 0x51, par);
- vga_out8 (0x3d5, par->CR51, par);
+ vga_out8(0x3d4, 0x34, par);
+ vga_out8(0x3d5, reg->CR34, par);
+ vga_out8(0x3d4, 0x40, par);
+ vga_out8(0x3d5, reg->CR40, par);
+ vga_out8(0x3d4, 0x42, par);
+ vga_out8(0x3d5, reg->CR42, par);
+ vga_out8(0x3d4, 0x45, par);
+ vga_out8(0x3d5, reg->CR45, par);
+ vga_out8(0x3d4, 0x50, par);
+ vga_out8(0x3d5, reg->CR50, par);
+ vga_out8(0x3d4, 0x51, par);
+ vga_out8(0x3d5, reg->CR51, par);
/* memory timings */
- vga_out8 (0x3d4, 0x36, par);
- vga_out8 (0x3d5, par->CR36, par);
- vga_out8 (0x3d4, 0x60, par);
- vga_out8 (0x3d5, par->CR60, par);
- vga_out8 (0x3d4, 0x68, par);
- vga_out8 (0x3d5, par->CR68, par);
- vga_out8 (0x3d4, 0x69, par);
- vga_out8 (0x3d5, par->CR69, par);
- vga_out8 (0x3d4, 0x6f, par);
- vga_out8 (0x3d5, par->CR6F, par);
-
- vga_out8 (0x3d4, 0x33, par);
- vga_out8 (0x3d5, par->CR33, par);
- vga_out8 (0x3d4, 0x86, par);
- vga_out8 (0x3d5, par->CR86, par);
- vga_out8 (0x3d4, 0x88, par);
- vga_out8 (0x3d5, par->CR88, par);
- vga_out8 (0x3d4, 0x90, par);
- vga_out8 (0x3d5, par->CR90, par);
- vga_out8 (0x3d4, 0x91, par);
- vga_out8 (0x3d5, par->CR91, par);
+ vga_out8(0x3d4, 0x36, par);
+ vga_out8(0x3d5, reg->CR36, par);
+ vga_out8(0x3d4, 0x60, par);
+ vga_out8(0x3d5, reg->CR60, par);
+ vga_out8(0x3d4, 0x68, par);
+ vga_out8(0x3d5, reg->CR68, par);
+ vga_out8(0x3d4, 0x69, par);
+ vga_out8(0x3d5, reg->CR69, par);
+ vga_out8(0x3d4, 0x6f, par);
+ vga_out8(0x3d5, reg->CR6F, par);
+
+ vga_out8(0x3d4, 0x33, par);
+ vga_out8(0x3d5, reg->CR33, par);
+ vga_out8(0x3d4, 0x86, par);
+ vga_out8(0x3d5, reg->CR86, par);
+ vga_out8(0x3d4, 0x88, par);
+ vga_out8(0x3d5, reg->CR88, par);
+ vga_out8(0x3d4, 0x90, par);
+ vga_out8(0x3d5, reg->CR90, par);
+ vga_out8(0x3d4, 0x91, par);
+ vga_out8(0x3d5, reg->CR91, par);
if (par->chip == S3_SAVAGE4) {
- vga_out8 (0x3d4, 0xb0, par);
- vga_out8 (0x3d5, par->CRB0, par);
+ vga_out8(0x3d4, 0xb0, par);
+ vga_out8(0x3d5, reg->CRB0, par);
}
- vga_out8 (0x3d4, 0x32, par);
- vga_out8 (0x3d5, par->CR32, par);
+ vga_out8(0x3d4, 0x32, par);
+ vga_out8(0x3d5, reg->CR32, par);
/* unlock extended seq regs */
- vga_out8 (0x3c4, 0x08, par);
- vga_out8 (0x3c5, 0x06, par);
+ vga_out8(0x3c4, 0x08, par);
+ vga_out8(0x3c5, 0x06, par);
/* Restore extended sequencer regs for MCLK. SR10 == 255 indicates
* that we should leave the default SR10 and SR11 values there.
*/
- if (par->SR10 != 255) {
- vga_out8 (0x3c4, 0x10, par);
- vga_out8 (0x3c5, par->SR10, par);
- vga_out8 (0x3c4, 0x11, par);
- vga_out8 (0x3c5, par->SR11, par);
+ if (reg->SR10 != 255) {
+ vga_out8(0x3c4, 0x10, par);
+ vga_out8(0x3c5, reg->SR10, par);
+ vga_out8(0x3c4, 0x11, par);
+ vga_out8(0x3c5, reg->SR11, par);
}
/* restore extended seq regs for dclk */
- vga_out8 (0x3c4, 0x0e, par);
- vga_out8 (0x3c5, par->SR0E, par);
- vga_out8 (0x3c4, 0x0f, par);
- vga_out8 (0x3c5, par->SR0F, par);
- vga_out8 (0x3c4, 0x12, par);
- vga_out8 (0x3c5, par->SR12, par);
- vga_out8 (0x3c4, 0x13, par);
- vga_out8 (0x3c5, par->SR13, par);
- vga_out8 (0x3c4, 0x29, par);
- vga_out8 (0x3c5, par->SR29, par);
-
- vga_out8 (0x3c4, 0x18, par);
- vga_out8 (0x3c5, par->SR18, par);
+ vga_out8(0x3c4, 0x0e, par);
+ vga_out8(0x3c5, reg->SR0E, par);
+ vga_out8(0x3c4, 0x0f, par);
+ vga_out8(0x3c5, reg->SR0F, par);
+ vga_out8(0x3c4, 0x12, par);
+ vga_out8(0x3c5, reg->SR12, par);
+ vga_out8(0x3c4, 0x13, par);
+ vga_out8(0x3c5, reg->SR13, par);
+ vga_out8(0x3c4, 0x29, par);
+ vga_out8(0x3c5, reg->SR29, par);
+ vga_out8(0x3c4, 0x18, par);
+ vga_out8(0x3c5, reg->SR18, par);
/* load new m, n pll values for dclk & mclk */
- vga_out8 (0x3c4, 0x15, par);
- tmp = vga_in8 (0x3c5, par) & ~0x21;
+ vga_out8(0x3c4, 0x15, par);
+ tmp = vga_in8(0x3c5, par) & ~0x21;
- vga_out8 (0x3c5, tmp | 0x03, par);
- vga_out8 (0x3c5, tmp | 0x23, par);
- vga_out8 (0x3c5, tmp | 0x03, par);
- vga_out8 (0x3c5, par->SR15, par);
- udelay (100);
+ vga_out8(0x3c5, tmp | 0x03, par);
+ vga_out8(0x3c5, tmp | 0x23, par);
+ vga_out8(0x3c5, tmp | 0x03, par);
+ vga_out8(0x3c5, reg->SR15, par);
+ udelay(100);
- vga_out8 (0x3c4, 0x30, par);
- vga_out8 (0x3c5, par->SR30, par);
- vga_out8 (0x3c4, 0x08, par);
- vga_out8 (0x3c5, par->SR08, par);
+ vga_out8(0x3c4, 0x30, par);
+ vga_out8(0x3c5, reg->SR30, par);
+ vga_out8(0x3c4, 0x08, par);
+ vga_out8(0x3c5, reg->SR08, par);
/* now write out cr67 in full, possibly starting STREAMS */
VerticalRetraceWait(par);
- vga_out8 (0x3d4, 0x67, par);
- vga_out8 (0x3d5, par->CR67, par);
+ vga_out8(0x3d4, 0x67, par);
+ vga_out8(0x3d5, reg->CR67, par);
- vga_out8 (0x3d4, 0x66, par);
- cr66 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr66 | 0x80, par);
- vga_out8 (0x3d4, 0x3a, par);
- cr3a = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr3a | 0x80, par);
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x80, par);
+ vga_out8(0x3d4, 0x3a, par);
+ cr3a = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3a | 0x80, par);
if (par->chip != S3_SAVAGE_MX) {
VerticalRetraceWait(par);
- savage_out32 (FIFO_CONTROL_REG, par->MMPR0, par);
- par->SavageWaitIdle (par);
- savage_out32 (MIU_CONTROL_REG, par->MMPR1, par);
- par->SavageWaitIdle (par);
- savage_out32 (STREAMS_TIMEOUT_REG, par->MMPR2, par);
- par->SavageWaitIdle (par);
- savage_out32 (MISC_TIMEOUT_REG, par->MMPR3, par);
+ savage_out32(FIFO_CONTROL_REG, reg->MMPR0, par);
+ par->SavageWaitIdle(par);
+ savage_out32(MIU_CONTROL_REG, reg->MMPR1, par);
+ par->SavageWaitIdle(par);
+ savage_out32(STREAMS_TIMEOUT_REG, reg->MMPR2, par);
+ par->SavageWaitIdle(par);
+ savage_out32(MISC_TIMEOUT_REG, reg->MMPR3, par);
}
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, cr66, par);
- vga_out8 (0x3d4, 0x3a, par);
- vga_out8 (0x3d5, cr3a, par);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66, par);
+ vga_out8(0x3d4, 0x3a, par);
+ vga_out8(0x3d5, cr3a, par);
- SavageSetup2DEngine (par);
- vgaHWProtect (par, 0);
+ SavageSetup2DEngine(par);
+ vgaHWProtect(par, 0);
}
-static void savagefb_update_start (struct savagefb_par *par,
- struct fb_var_screeninfo *var)
+static void savagefb_update_start(struct savagefb_par *par,
+ struct fb_var_screeninfo *var)
{
int base;
@@ -1305,8 +1475,8 @@ static void savagefb_update_start (struct savagefb_par *par,
/* now program the start address registers */
vga_out16(0x3d4, (base & 0x00ff00) | 0x0c, par);
vga_out16(0x3d4, ((base & 0x00ff) << 8) | 0x0d, par);
- vga_out8 (0x3d4, 0x69, par);
- vga_out8 (0x3d5, (base & 0x7f0000) >> 16, par);
+ vga_out8(0x3d4, 0x69, par);
+ vga_out8(0x3d5, (base & 0x7f0000) >> 16, par);
}
@@ -1325,29 +1495,14 @@ static void savagefb_set_fix(struct fb_info *info)
}
-#if defined(CONFIG_FB_SAVAGE_ACCEL)
-static void savagefb_set_clip(struct fb_info *info)
-{
- struct savagefb_par *par = info->par;
- int cmd;
-
- cmd = BCI_CMD_NOP | BCI_CMD_CLIP_NEW;
- par->bci_ptr = 0;
- par->SavageWaitFifo(par,3);
- BCI_SEND(cmd);
- BCI_SEND(BCI_CLIP_TL(0, 0));
- BCI_SEND(BCI_CLIP_BR(0xfff, 0xfff));
-}
-#endif
-
-static int savagefb_set_par (struct fb_info *info)
+static int savagefb_set_par(struct fb_info *info)
{
struct savagefb_par *par = info->par;
struct fb_var_screeninfo *var = &info->var;
int err;
DBG("savagefb_set_par");
- err = savagefb_decode_var (var, par);
+ err = savagefb_decode_var(var, par, &par->state);
if (err)
return err;
@@ -1366,8 +1521,8 @@ static int savagefb_set_par (struct fb_info *info)
par->maxClock = par->dacSpeedBpp;
par->minClock = 10000;
- savagefb_set_par_int (par);
- fb_set_cmap (&info->cmap, info);
+ savagefb_set_par_int(par, &par->state);
+ fb_set_cmap(&info->cmap, info);
savagefb_set_fix(info);
savagefb_set_clip(info);
@@ -1378,12 +1533,12 @@ static int savagefb_set_par (struct fb_info *info)
/*
* Pan or Wrap the Display
*/
-static int savagefb_pan_display (struct fb_var_screeninfo *var,
- struct fb_info *info)
+static int savagefb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
{
struct savagefb_par *par = info->par;
- savagefb_update_start (par, var);
+ savagefb_update_start(par, var);
return 0;
}
@@ -1440,6 +1595,22 @@ static int savagefb_blank(int blank, struct fb_info *info)
return (blank == FB_BLANK_NORMAL) ? 1 : 0;
}
+static void savagefb_save_state(struct fb_info *info)
+{
+ struct savagefb_par *par = info->par;
+
+ savage_get_default_par(par, &par->save);
+}
+
+static void savagefb_restore_state(struct fb_info *info)
+{
+ struct savagefb_par *par = info->par;
+
+ savagefb_blank(FB_BLANK_POWERDOWN, info);
+ savage_set_default_par(par, &par->save);
+ savagefb_blank(FB_BLANK_UNBLANK, info);
+}
+
static struct fb_ops savagefb_ops = {
.owner = THIS_MODULE,
.fb_check_var = savagefb_check_var,
@@ -1447,6 +1618,8 @@ static struct fb_ops savagefb_ops = {
.fb_setcolreg = savagefb_setcolreg,
.fb_pan_display = savagefb_pan_display,
.fb_blank = savagefb_blank,
+ .fb_save_state = savagefb_save_state,
+ .fb_restore_state = savagefb_restore_state,
#if defined(CONFIG_FB_SAVAGE_ACCEL)
.fb_fillrect = savagefb_fillrect,
.fb_copyarea = savagefb_copyarea,
@@ -1479,59 +1652,59 @@ static struct fb_var_screeninfo __devinitdata savagefb_var800x600x8 = {
.vmode = FB_VMODE_NONINTERLACED
};
-static void savage_enable_mmio (struct savagefb_par *par)
+static void savage_enable_mmio(struct savagefb_par *par)
{
unsigned char val;
- DBG ("savage_enable_mmio\n");
+ DBG("savage_enable_mmio\n");
- val = vga_in8 (0x3c3, par);
- vga_out8 (0x3c3, val | 0x01, par);
- val = vga_in8 (0x3cc, par);
- vga_out8 (0x3c2, val | 0x01, par);
+ val = vga_in8(0x3c3, par);
+ vga_out8(0x3c3, val | 0x01, par);
+ val = vga_in8(0x3cc, par);
+ vga_out8(0x3c2, val | 0x01, par);
if (par->chip >= S3_SAVAGE4) {
- vga_out8 (0x3d4, 0x40, par);
- val = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, val | 1, par);
+ vga_out8(0x3d4, 0x40, par);
+ val = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, val | 1, par);
}
}
-static void savage_disable_mmio (struct savagefb_par *par)
+static void savage_disable_mmio(struct savagefb_par *par)
{
unsigned char val;
- DBG ("savage_disable_mmio\n");
+ DBG("savage_disable_mmio\n");
- if(par->chip >= S3_SAVAGE4 ) {
- vga_out8 (0x3d4, 0x40, par);
- val = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, val | 1, par);
+ if (par->chip >= S3_SAVAGE4) {
+ vga_out8(0x3d4, 0x40, par);
+ val = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, val | 1, par);
}
}
-static int __devinit savage_map_mmio (struct fb_info *info)
+static int __devinit savage_map_mmio(struct fb_info *info)
{
struct savagefb_par *par = info->par;
- DBG ("savage_map_mmio");
+ DBG("savage_map_mmio");
- if (S3_SAVAGE3D_SERIES (par->chip))
- par->mmio.pbase = pci_resource_start (par->pcidev, 0) +
+ if (S3_SAVAGE3D_SERIES(par->chip))
+ par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
SAVAGE_NEWMMIO_REGBASE_S3;
else
- par->mmio.pbase = pci_resource_start (par->pcidev, 0) +
+ par->mmio.pbase = pci_resource_start(par->pcidev, 0) +
SAVAGE_NEWMMIO_REGBASE_S4;
par->mmio.len = SAVAGE_NEWMMIO_REGSIZE;
- par->mmio.vbase = ioremap (par->mmio.pbase, par->mmio.len);
+ par->mmio.vbase = ioremap(par->mmio.pbase, par->mmio.len);
if (!par->mmio.vbase) {
- printk ("savagefb: unable to map memory mapped IO\n");
+ printk("savagefb: unable to map memory mapped IO\n");
return -ENOMEM;
} else
- printk (KERN_INFO "savagefb: mapped io at %p\n",
+ printk(KERN_INFO "savagefb: mapped io at %p\n",
par->mmio.vbase);
info->fix.mmio_start = par->mmio.pbase;
@@ -1540,15 +1713,15 @@ static int __devinit savage_map_mmio (struct fb_info *info)
par->bci_base = (u32 __iomem *)(par->mmio.vbase + BCI_BUFFER_OFFSET);
par->bci_ptr = 0;
- savage_enable_mmio (par);
+ savage_enable_mmio(par);
return 0;
}
-static void savage_unmap_mmio (struct fb_info *info)
+static void savage_unmap_mmio(struct fb_info *info)
{
struct savagefb_par *par = info->par;
- DBG ("savage_unmap_mmio");
+ DBG("savage_unmap_mmio");
savage_disable_mmio(par);
@@ -1558,46 +1731,46 @@ static void savage_unmap_mmio (struct fb_info *info)
}
}
-static int __devinit savage_map_video (struct fb_info *info,
- int video_len)
+static int __devinit savage_map_video(struct fb_info *info,
+ int video_len)
{
struct savagefb_par *par = info->par;
int resource;
DBG("savage_map_video");
- if (S3_SAVAGE3D_SERIES (par->chip))
+ if (S3_SAVAGE3D_SERIES(par->chip))
resource = 0;
else
resource = 1;
- par->video.pbase = pci_resource_start (par->pcidev, resource);
+ par->video.pbase = pci_resource_start(par->pcidev, resource);
par->video.len = video_len;
- par->video.vbase = ioremap (par->video.pbase, par->video.len);
+ par->video.vbase = ioremap(par->video.pbase, par->video.len);
if (!par->video.vbase) {
- printk ("savagefb: unable to map screen memory\n");
+ printk("savagefb: unable to map screen memory\n");
return -ENOMEM;
} else
- printk (KERN_INFO "savagefb: mapped framebuffer at %p, "
- "pbase == %x\n", par->video.vbase, par->video.pbase);
+ printk(KERN_INFO "savagefb: mapped framebuffer at %p, "
+ "pbase == %x\n", par->video.vbase, par->video.pbase);
info->fix.smem_start = par->video.pbase;
info->fix.smem_len = par->video.len - par->cob_size;
info->screen_base = par->video.vbase;
#ifdef CONFIG_MTRR
- par->video.mtrr = mtrr_add (par->video.pbase, video_len,
- MTRR_TYPE_WRCOMB, 1);
+ par->video.mtrr = mtrr_add(par->video.pbase, video_len,
+ MTRR_TYPE_WRCOMB, 1);
#endif
/* Clear framebuffer, it's all white in memory after boot */
- memset_io (par->video.vbase, 0, par->video.len);
+ memset_io(par->video.vbase, 0, par->video.len);
return 0;
}
-static void savage_unmap_video (struct fb_info *info)
+static void savage_unmap_video(struct fb_info *info)
{
struct savagefb_par *par = info->par;
@@ -1605,16 +1778,16 @@ static void savage_unmap_video (struct fb_info *info)
if (par->video.vbase) {
#ifdef CONFIG_MTRR
- mtrr_del (par->video.mtrr, par->video.pbase, par->video.len);
+ mtrr_del(par->video.mtrr, par->video.pbase, par->video.len);
#endif
- iounmap (par->video.vbase);
+ iounmap(par->video.vbase);
par->video.vbase = NULL;
info->screen_base = NULL;
}
}
-static int savage_init_hw (struct savagefb_par *par)
+static int savage_init_hw(struct savagefb_par *par)
{
unsigned char config1, m, n, n1, n2, sr8, cr3f, cr66 = 0, tmp;
@@ -1656,7 +1829,7 @@ static int savage_init_hw (struct savagefb_par *par)
switch (par->chip) {
case S3_SAVAGE3D:
- videoRam = RamSavage3D[ (config1 & 0xC0) >> 6 ] * 1024;
+ videoRam = RamSavage3D[(config1 & 0xC0) >> 6 ] * 1024;
break;
case S3_SAVAGE4:
@@ -1667,22 +1840,22 @@ static int savage_init_hw (struct savagefb_par *par)
* can do it different...
*/
vga_out8(0x3d4, 0x68, par); /* memory control 1 */
- if( (vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6) )
+ if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6))
RamSavage4[1] = 8;
/*FALLTHROUGH*/
case S3_SAVAGE2000:
- videoRam = RamSavage4[ (config1 & 0xE0) >> 5 ] * 1024;
+ videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024;
break;
case S3_SAVAGE_MX:
case S3_SUPERSAVAGE:
- videoRam = RamSavageMX[ (config1 & 0x0E) >> 1 ] * 1024;
+ videoRam = RamSavageMX[(config1 & 0x0E) >> 1] * 1024;
break;
case S3_PROSAVAGE:
- videoRam = RamSavageNB[ (config1 & 0xE0) >> 5 ] * 1024;
+ videoRam = RamSavageNB[(config1 & 0xE0) >> 5] * 1024;
break;
default:
@@ -1693,31 +1866,31 @@ static int savage_init_hw (struct savagefb_par *par)
videoRambytes = videoRam * 1024;
- printk (KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
+ printk(KERN_INFO "savagefb: probed videoram: %dk\n", videoRam);
/* reset graphics engine to avoid memory corruption */
- vga_out8 (0x3d4, 0x66, par);
- cr66 = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr66 | 0x02, par);
- udelay (10000);
+ vga_out8(0x3d4, 0x66, par);
+ cr66 = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr66 | 0x02, par);
+ udelay(10000);
- vga_out8 (0x3d4, 0x66, par);
- vga_out8 (0x3d5, cr66 & ~0x02, par); /* clear reset flag */
- udelay (10000);
+ vga_out8(0x3d4, 0x66, par);
+ vga_out8(0x3d5, cr66 & ~0x02, par); /* clear reset flag */
+ udelay(10000);
/*
* reset memory interface, 3D engine, AGP master, PCI master,
* master engine unit, motion compensation/LPB
*/
- vga_out8 (0x3d4, 0x3f, par);
- cr3f = vga_in8 (0x3d5, par);
- vga_out8 (0x3d5, cr3f | 0x08, par);
- udelay (10000);
+ vga_out8(0x3d4, 0x3f, par);
+ cr3f = vga_in8(0x3d5, par);
+ vga_out8(0x3d5, cr3f | 0x08, par);
+ udelay(10000);
- vga_out8 (0x3d4, 0x3f, par);
- vga_out8 (0x3d5, cr3f & ~0x08, par); /* clear reset flags */
- udelay (10000);
+ vga_out8(0x3d4, 0x3f, par);
+ vga_out8(0x3d5, cr3f & ~0x08, par); /* clear reset flags */
+ udelay(10000);
/* Savage ramdac speeds */
par->numClocks = 4;
@@ -1740,7 +1913,7 @@ static int savage_init_hw (struct savagefb_par *par)
n1 = n & 0x1f;
n2 = (n >> 5) & 0x03;
par->MCLK = ((1431818 * (m+2)) / (n1+2) / (1 << n2) + 50) / 100;
- printk (KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
+ printk(KERN_INFO "savagefb: Detected current MCLK value of %d kHz\n",
par->MCLK);
/* check for DVI/flat panel */
@@ -1769,12 +1942,12 @@ static int savage_init_hw (struct savagefb_par *par)
/* Check LCD panel parrmation */
if (par->display_type == DISP_LCD) {
- unsigned char cr6b = VGArCR( 0x6b, par);
+ unsigned char cr6b = VGArCR(0x6b, par);
- int panelX = (VGArSEQ (0x61, par) +
- ((VGArSEQ (0x66, par) & 0x02) << 7) + 1) * 8;
- int panelY = (VGArSEQ (0x69, par) +
- ((VGArSEQ (0x6e, par) & 0x70) << 4) + 1);
+ int panelX = (VGArSEQ(0x61, par) +
+ ((VGArSEQ(0x66, par) & 0x02) << 7) + 1) * 8;
+ int panelY = (VGArSEQ(0x69, par) +
+ ((VGArSEQ(0x6e, par) & 0x70) << 4) + 1);
char * sTechnology = "Unknown";
@@ -1796,26 +1969,26 @@ static int savage_init_hw (struct savagefb_par *par)
ActiveDUO = 0x80
};
- if ((VGArSEQ (0x39, par) & 0x03) == 0) {
+ if ((VGArSEQ(0x39, par) & 0x03) == 0) {
sTechnology = "TFT";
- } else if ((VGArSEQ (0x30, par) & 0x01) == 0) {
+ } else if ((VGArSEQ(0x30, par) & 0x01) == 0) {
sTechnology = "DSTN";
} else {
sTechnology = "STN";
}
- printk (KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
- panelX, panelY, sTechnology,
- cr6b & ActiveLCD ? "and active" : "but not active");
+ printk(KERN_INFO "savagefb: %dx%d %s LCD panel detected %s\n",
+ panelX, panelY, sTechnology,
+ cr6b & ActiveLCD ? "and active" : "but not active");
- if( cr6b & ActiveLCD ) {
+ if (cr6b & ActiveLCD) {
/*
* If the LCD is active and panel expansion is enabled,
* we probably want to kill the HW cursor.
*/
- printk (KERN_INFO "savagefb: Limiting video mode to "
- "%dx%d\n", panelX, panelY );
+ printk(KERN_INFO "savagefb: Limiting video mode to "
+ "%dx%d\n", panelX, panelY);
par->SavagePanelWidth = panelX;
par->SavagePanelHeight = panelY;
@@ -1824,9 +1997,10 @@ static int savage_init_hw (struct savagefb_par *par)
par->display_type = DISP_CRT;
}
- savage_get_default_par (par);
+ savage_get_default_par(par, &par->state);
+ par->save = par->state;
- if( S3_SAVAGE4_SERIES(par->chip) ) {
+ if (S3_SAVAGE4_SERIES(par->chip)) {
/*
* The Savage4 and ProSavage have COB coherency bugs which
* render the buffer useless. We disable it.
@@ -1845,9 +2019,9 @@ static int savage_init_hw (struct savagefb_par *par)
return videoRambytes;
}
-static int __devinit savage_init_fb_info (struct fb_info *info,
- struct pci_dev *dev,
- const struct pci_device_id *id)
+static int __devinit savage_init_fb_info(struct fb_info *info,
+ struct pci_dev *dev,
+ const struct pci_device_id *id)
{
struct savagefb_par *par = info->par;
int err = 0;
@@ -1863,63 +2037,63 @@ static int __devinit savage_init_fb_info (struct fb_info *info,
switch (info->fix.accel) {
case FB_ACCEL_SUPERSAVAGE:
par->chip = S3_SUPERSAVAGE;
- snprintf (info->fix.id, 16, "SuperSavage");
+ snprintf(info->fix.id, 16, "SuperSavage");
break;
case FB_ACCEL_SAVAGE4:
par->chip = S3_SAVAGE4;
- snprintf (info->fix.id, 16, "Savage4");
+ snprintf(info->fix.id, 16, "Savage4");
break;
case FB_ACCEL_SAVAGE3D:
par->chip = S3_SAVAGE3D;
- snprintf (info->fix.id, 16, "Savage3D");
+ snprintf(info->fix.id, 16, "Savage3D");
break;
case FB_ACCEL_SAVAGE3D_MV:
par->chip = S3_SAVAGE3D;
- snprintf (info->fix.id, 16, "Savage3D-MV");
+ snprintf(info->fix.id, 16, "Savage3D-MV");
break;
case FB_ACCEL_SAVAGE2000:
par->chip = S3_SAVAGE2000;
- snprintf (info->fix.id, 16, "Savage2000");
+ snprintf(info->fix.id, 16, "Savage2000");
break;
case FB_ACCEL_SAVAGE_MX_MV:
par->chip = S3_SAVAGE_MX;
- snprintf (info->fix.id, 16, "Savage/MX-MV");
+ snprintf(info->fix.id, 16, "Savage/MX-MV");
break;
case FB_ACCEL_SAVAGE_MX:
par->chip = S3_SAVAGE_MX;
- snprintf (info->fix.id, 16, "Savage/MX");
+ snprintf(info->fix.id, 16, "Savage/MX");
break;
case FB_ACCEL_SAVAGE_IX_MV:
par->chip = S3_SAVAGE_MX;
- snprintf (info->fix.id, 16, "Savage/IX-MV");
+ snprintf(info->fix.id, 16, "Savage/IX-MV");
break;
case FB_ACCEL_SAVAGE_IX:
par->chip = S3_SAVAGE_MX;
- snprintf (info->fix.id, 16, "Savage/IX");
+ snprintf(info->fix.id, 16, "Savage/IX");
break;
case FB_ACCEL_PROSAVAGE_PM:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "ProSavagePM");
+ snprintf(info->fix.id, 16, "ProSavagePM");
break;
case FB_ACCEL_PROSAVAGE_KM:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "ProSavageKM");
+ snprintf(info->fix.id, 16, "ProSavageKM");
break;
case FB_ACCEL_S3TWISTER_P:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "TwisterP");
+ snprintf(info->fix.id, 16, "TwisterP");
break;
case FB_ACCEL_S3TWISTER_K:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "TwisterK");
+ snprintf(info->fix.id, 16, "TwisterK");
break;
case FB_ACCEL_PROSAVAGE_DDR:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "ProSavageDDR");
+ snprintf(info->fix.id, 16, "ProSavageDDR");
break;
case FB_ACCEL_PROSAVAGE_DDRK:
par->chip = S3_PROSAVAGE;
- snprintf (info->fix.id, 16, "ProSavage8");
+ snprintf(info->fix.id, 16, "ProSavage8");
break;
}
@@ -1960,7 +2134,7 @@ static int __devinit savage_init_fb_info (struct fb_info *info,
info->pixmap.buf_align = 4;
info->pixmap.access_align = 32;
- err = fb_alloc_cmap (&info->cmap, NR_PALETTE, 0);
+ err = fb_alloc_cmap(&info->cmap, NR_PALETTE, 0);
if (!err)
info->flags |= FBINFO_HWACCEL_COPYAREA |
FBINFO_HWACCEL_FILLRECT |
@@ -1972,8 +2146,8 @@ static int __devinit savage_init_fb_info (struct fb_info *info,
/* --------------------------------------------------------------------- */
-static int __devinit savagefb_probe (struct pci_dev* dev,
- const struct pci_device_id* id)
+static int __devinit savagefb_probe(struct pci_dev* dev,
+ const struct pci_device_id* id)
{
struct fb_info *info;
struct savagefb_par *par;
@@ -2085,12 +2259,12 @@ static int __devinit savagefb_probe (struct pci_dev* dev,
fb_destroy_modedb(info->monspecs.modedb);
info->monspecs.modedb = NULL;
- err = register_framebuffer (info);
+ err = register_framebuffer(info);
if (err < 0)
goto failed;
- printk (KERN_INFO "fb: S3 %s frame buffer device\n",
- info->fix.id);
+ printk(KERN_INFO "fb: S3 %s frame buffer device\n",
+ info->fix.id);
/*
* Our driver data
@@ -2103,10 +2277,10 @@ static int __devinit savagefb_probe (struct pci_dev* dev,
#ifdef CONFIG_FB_SAVAGE_I2C
savagefb_delete_i2c_busses(info);
#endif
- fb_alloc_cmap (&info->cmap, 0, 0);
+ fb_alloc_cmap(&info->cmap, 0, 0);
savage_unmap_video(info);
failed_video:
- savage_unmap_mmio (info);
+ savage_unmap_mmio(info);
failed_mmio:
kfree(info->pixmap.addr);
failed_init:
@@ -2117,7 +2291,7 @@ static int __devinit savagefb_probe (struct pci_dev* dev,
return err;
}
-static void __devexit savagefb_remove (struct pci_dev *dev)
+static void __devexit savagefb_remove(struct pci_dev *dev)
{
struct fb_info *info = pci_get_drvdata(dev);
@@ -2129,16 +2303,16 @@ static void __devexit savagefb_remove (struct pci_dev *dev)
* we will be leaving hooks that could cause
* oopsen laying around.
*/
- if (unregister_framebuffer (info))
- printk (KERN_WARNING "savagefb: danger danger! "
- "Oopsen imminent!\n");
+ if (unregister_framebuffer(info))
+ printk(KERN_WARNING "savagefb: danger danger! "
+ "Oopsen imminent!\n");
#ifdef CONFIG_FB_SAVAGE_I2C
savagefb_delete_i2c_busses(info);
#endif
- fb_alloc_cmap (&info->cmap, 0, 0);
- savage_unmap_video (info);
- savage_unmap_mmio (info);
+ fb_alloc_cmap(&info->cmap, 0, 0);
+ savage_unmap_video(info);
+ savage_unmap_mmio(info);
kfree(info->pixmap.addr);
pci_release_regions(dev);
framebuffer_release(info);
@@ -2151,7 +2325,7 @@ static void __devexit savagefb_remove (struct pci_dev *dev)
}
}
-static int savagefb_suspend (struct pci_dev* dev, pm_message_t state)
+static int savagefb_suspend(struct pci_dev* dev, pm_message_t state)
{
struct fb_info *info = pci_get_drvdata(dev);
struct savagefb_par *par = info->par;
@@ -2177,6 +2351,7 @@ static int savagefb_suspend (struct pci_dev* dev, pm_message_t state)
info->fbops->fb_sync(info);
savagefb_blank(FB_BLANK_POWERDOWN, info);
+ savage_set_default_par(par, &par->save);
savage_disable_mmio(par);
pci_save_state(dev);
pci_disable_device(dev);
@@ -2186,7 +2361,7 @@ static int savagefb_suspend (struct pci_dev* dev, pm_message_t state)
return 0;
}
-static int savagefb_resume (struct pci_dev* dev)
+static int savagefb_resume(struct pci_dev* dev)
{
struct fb_info *info = pci_get_drvdata(dev);
struct savagefb_par *par = info->par;
@@ -2210,15 +2385,15 @@ static int savagefb_resume (struct pci_dev* dev)
pci_set_power_state(dev, PCI_D0);
pci_restore_state(dev);
- if(pci_enable_device(dev))
+ if (pci_enable_device(dev))
DBG("err");
pci_set_master(dev);
savage_enable_mmio(par);
savage_init_hw(par);
- savagefb_set_par (info);
+ savagefb_set_par(info);
+ fb_set_suspend(info, 0);
savagefb_blank(FB_BLANK_UNBLANK, info);
- fb_set_suspend (info, 0);
release_console_sem();
return 0;
@@ -2311,10 +2486,10 @@ static struct pci_driver savagefb_driver = {
/* **************************** exit-time only **************************** */
-static void __exit savage_done (void)
+static void __exit savage_done(void)
{
DBG("savage_done");
- pci_unregister_driver (&savagefb_driver);
+ pci_unregister_driver(&savagefb_driver);
}
@@ -2345,7 +2520,7 @@ static int __init savagefb_init(void)
return -ENODEV;
savagefb_setup(option);
- return pci_register_driver (&savagefb_driver);
+ return pci_register_driver(&savagefb_driver);
}
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 8adf5bf91ee..c63c0e721b8 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -275,7 +275,7 @@ sisfb_search_mode(char *name, BOOLEAN quiet)
static void __devinit
sisfb_get_vga_mode_from_kernel(void)
{
-#if (defined(__i386__) || defined(__x86_64__)) && defined(CONFIG_VIDEO_SELECT)
+#ifdef CONFIG_X86
char mymode[32];
int mydepth = screen_info.lfb_depth;
diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c
index 9b707771d75..67f429e9318 100644
--- a/drivers/video/skeletonfb.c
+++ b/drivers/video/skeletonfb.c
@@ -906,11 +906,6 @@ static void __exit xxxfb_exit(void)
}
#endif
-MODULE_LICENSE("GPL");
-module_init(xxxfb_init);
-module_exit(xxxfb_exit);
-
-
/*
* Setup
*/
diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c
index 7398bd48ba6..6c2c78ab982 100644
--- a/drivers/video/tgafb.c
+++ b/drivers/video/tgafb.c
@@ -26,7 +26,6 @@
#include <linux/selection.h>
#include <asm/io.h>
#include <video/tgafb.h>
-#include <linux/selection.h>
/*
* Local functions.
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index b0b9acfdd43..5718924b677 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -51,7 +51,7 @@ static int inverse = 0;
static int mtrr = 0; /* disable mtrr */
static int vram_remap __initdata = 0; /* Set amount of memory to be used */
static int vram_total __initdata = 0; /* Set total amount of memory */
-static int pmi_setpal = 0; /* pmi for palette changes ??? */
+static int pmi_setpal = 1; /* pmi for palette changes ??? */
static int ypan = 0; /* 0..nothing, 1..ypan, 2..ywrap */
static unsigned short *pmi_base = NULL;
static void (*pmi_start)(void);
@@ -80,15 +80,30 @@ static int vesafb_pan_display(struct fb_var_screeninfo *var,
return 0;
}
-static void vesa_setpalette(int regno, unsigned red, unsigned green,
+static int vesa_setpalette(int regno, unsigned red, unsigned green,
unsigned blue)
{
int shift = 16 - depth;
+ int err = -EINVAL;
+
+/*
+ * Try VGA registers first...
+ */
+ if (vga_compat) {
+ outb_p(regno, dac_reg);
+ outb_p(red >> shift, dac_val);
+ outb_p(green >> shift, dac_val);
+ outb_p(blue >> shift, dac_val);
+ err = 0;
+ }
#ifdef __i386__
- struct { u_char blue, green, red, pad; } entry;
+/*
+ * Fallback to the PMI....
+ */
+ if (err && pmi_setpal) {
+ struct { u_char blue, green, red, pad; } entry;
- if (pmi_setpal) {
entry.red = red >> shift;
entry.green = green >> shift;
entry.blue = blue >> shift;
@@ -102,26 +117,19 @@ static void vesa_setpalette(int regno, unsigned red, unsigned green,
"d" (regno), /* EDX */
"D" (&entry), /* EDI */
"S" (&pmi_pal)); /* ESI */
- return;
+ err = 0;
}
#endif
-/*
- * without protected mode interface and if VGA compatible,
- * try VGA registers...
- */
- if (vga_compat) {
- outb_p(regno, dac_reg);
- outb_p(red >> shift, dac_val);
- outb_p(green >> shift, dac_val);
- outb_p(blue >> shift, dac_val);
- }
+ return err;
}
static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
unsigned blue, unsigned transp,
struct fb_info *info)
{
+ int err = 0;
+
/*
* Set a single color register. The values supplied are
* already rounded down to the hardware's capabilities
@@ -133,7 +141,7 @@ static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
return 1;
if (info->var.bits_per_pixel == 8)
- vesa_setpalette(regno,red,green,blue);
+ err = vesa_setpalette(regno,red,green,blue);
else if (regno < 16) {
switch (info->var.bits_per_pixel) {
case 16:
@@ -164,7 +172,7 @@ static int vesafb_setcolreg(unsigned regno, unsigned red, unsigned green,
}
}
- return 0;
+ return err;
}
static struct fb_ops vesafb_ops = {
@@ -460,9 +468,7 @@ static struct platform_driver vesafb_driver = {
},
};
-static struct platform_device vesafb_device = {
- .name = "vesafb",
-};
+static struct platform_device *vesafb_device;
static int __init vesafb_init(void)
{
@@ -475,10 +481,19 @@ static int __init vesafb_init(void)
ret = platform_driver_register(&vesafb_driver);
if (!ret) {
- ret = platform_device_register(&vesafb_device);
- if (ret)
+ vesafb_device = platform_device_alloc("vesafb", 0);
+
+ if (vesafb_device)
+ ret = platform_device_add(vesafb_device);
+ else
+ ret = -ENOMEM;
+
+ if (ret) {
+ platform_device_put(vesafb_device);
platform_driver_unregister(&vesafb_driver);
+ }
}
+
return ret;
}
module_init(vesafb_init);
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index 77eed1fd994..d073ffb6e1f 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -398,12 +398,6 @@ static int __init vfb_setup(char *options)
* Initialisation
*/
-static void vfb_platform_release(struct device *device)
-{
- // This is called when the reference count goes to zero.
- dev_err(device, "This driver is broken, please bug the authors so they will fix it.\n");
-}
-
static int __init vfb_probe(struct platform_device *dev)
{
struct fb_info *info;
@@ -482,13 +476,7 @@ static struct platform_driver vfb_driver = {
},
};
-static struct platform_device vfb_device = {
- .name = "vfb",
- .id = 0,
- .dev = {
- .release = vfb_platform_release,
- }
-};
+static struct platform_device *vfb_device;
static int __init vfb_init(void)
{
@@ -508,10 +496,19 @@ static int __init vfb_init(void)
ret = platform_driver_register(&vfb_driver);
if (!ret) {
- ret = platform_device_register(&vfb_device);
- if (ret)
+ vfb_device = platform_device_alloc("vfb", 0);
+
+ if (vfb_device)
+ ret = platform_device_add(vfb_device);
+ else
+ ret = -ENOMEM;
+
+ if (ret) {
+ platform_device_put(vfb_device);
platform_driver_unregister(&vfb_driver);
+ }
}
+
return ret;
}
@@ -520,7 +517,7 @@ module_init(vfb_init);
#ifdef MODULE
static void __exit vfb_exit(void)
{
- platform_device_unregister(&vfb_device);
+ platform_device_unregister(vfb_device);
platform_driver_unregister(&vfb_driver);
}
diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c
index 4fd2a272e03..3c404c9bd36 100644
--- a/drivers/video/vga16fb.c
+++ b/drivers/video/vga16fb.c
@@ -1334,9 +1334,8 @@ static int vga16fb_setup(char *options)
}
#endif
-static int __init vga16fb_probe(struct device *device)
+static int __init vga16fb_probe(struct platform_device *dev)
{
- struct platform_device *dev = to_platform_device(device);
struct fb_info *info;
struct vga16fb_par *par;
int i;
@@ -1403,7 +1402,7 @@ static int __init vga16fb_probe(struct device *device)
printk(KERN_INFO "fb%d: %s frame buffer device\n",
info->node, info->fix.id);
- dev_set_drvdata(device, info);
+ platform_set_drvdata(dev, info);
return 0;
@@ -1417,9 +1416,9 @@ static int __init vga16fb_probe(struct device *device)
return ret;
}
-static int vga16fb_remove(struct device *device)
+static int vga16fb_remove(struct platform_device *dev)
{
- struct fb_info *info = dev_get_drvdata(device);
+ struct fb_info *info = platform_get_drvdata(dev);
if (info) {
unregister_framebuffer(info);
@@ -1432,16 +1431,15 @@ static int vga16fb_remove(struct device *device)
return 0;
}
-static struct device_driver vga16fb_driver = {
- .name = "vga16fb",
- .bus = &platform_bus_type,
+static struct platform_driver vga16fb_driver = {
.probe = vga16fb_probe,
.remove = vga16fb_remove,
+ .driver = {
+ .name = "vga16fb",
+ },
};
-static struct platform_device vga16fb_device = {
- .name = "vga16fb",
-};
+static struct platform_device *vga16fb_device;
static int __init vga16fb_init(void)
{
@@ -1454,12 +1452,20 @@ static int __init vga16fb_init(void)
vga16fb_setup(option);
#endif
- ret = driver_register(&vga16fb_driver);
+ ret = platform_driver_register(&vga16fb_driver);
if (!ret) {
- ret = platform_device_register(&vga16fb_device);
- if (ret)
- driver_unregister(&vga16fb_driver);
+ vga16fb_device = platform_device_alloc("vga16fb", 0);
+
+ if (vga16fb_device)
+ ret = platform_device_add(vga16fb_device);
+ else
+ ret = -ENOMEM;
+
+ if (ret) {
+ platform_device_put(vga16fb_device);
+ platform_driver_unregister(&vga16fb_driver);
+ }
}
return ret;
@@ -1467,8 +1473,8 @@ static int __init vga16fb_init(void)
static void __exit vga16fb_exit(void)
{
- platform_device_unregister(&vga16fb_device);
- driver_unregister(&vga16fb_driver);
+ platform_device_unregister(vga16fb_device);
+ platform_driver_unregister(&vga16fb_driver);
}
MODULE_LICENSE("GPL");