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authorLinus Torvalds <torvalds@g5.osdl.org>2006-06-22 15:07:59 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-22 15:07:59 -0700
commit6c763eb9ead86c612492b59287b36c0dcf7d09b1 (patch)
tree46497ff44bcf909517bffac70f0d6c7ad45ae1f0
parentdcc1a66a09420ccc5a22671bddc5a842f92d67e5 (diff)
parentcf34a8e07f02c76f3f1232eecb681301a3d7b10b (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (27 commits) [PATCH] PCI: nVidia quirk to make AER PCI-E extended capability visible [PATCH] PCI: fix issues with extended conf space when MMCONFIG disabled because of e820 [PATCH] PCI: Bus Parity Status sysfs interface [PATCH] PCI: fix memory leak in MMCONFIG error path [PATCH] PCI: fix error with pci_get_device() call in the mpc85xx driver [PATCH] PCI: MSI-K8T-Neo2-Fir: run only where needed [PATCH] PCI: fix race with pci_walk_bus and pci_destroy_dev [PATCH] PCI: clean up pci documentation to be more specific [PATCH] PCI: remove unneeded msi code [PATCH] PCI: don't move ioapics below PCI bridge [PATCH] PCI: cleanup unused variable about msi driver [PATCH] PCI: disable msi mode in pci_disable_device [PATCH] PCI: Allow MSI to work on kexec kernel [PATCH] PCI: AMD 8131 MSI quirk called too late, bus_flags not inherited ? [PATCH] PCI: Move various PCI IDs to header file [PATCH] PCI Bus Parity Status-broken hardware attribute, EDAC foundation [PATCH] PCI: i386/x86_84: disable PCI resource decode on device disable [PATCH] PCI ACPI: Rename the functions to avoid multiple instances. [PATCH] PCI: don't enable device if already enabled [PATCH] PCI: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access ...
-rw-r--r--Documentation/pci.txt14
-rw-r--r--arch/i386/kernel/acpi/boot.c2
-rw-r--r--arch/i386/pci/common.c1
-rw-r--r--arch/i386/pci/i386.c9
-rw-r--r--arch/i386/pci/mmconfig.c9
-rw-r--r--arch/i386/pci/pci.h1
-rw-r--r--arch/ia64/kernel/irq_ia64.c19
-rw-r--r--arch/ia64/sn/kernel/io_init.c9
-rw-r--r--arch/ia64/sn/kernel/irq.c142
-rw-r--r--arch/ia64/sn/pci/pci_dma.c10
-rw-r--r--arch/ia64/sn/pci/pcibr/pcibr_dma.c62
-rw-r--r--arch/ia64/sn/pci/tioca_provider.c8
-rw-r--r--arch/ia64/sn/pci/tioce_provider.c65
-rw-r--r--arch/ppc/platforms/85xx/mpc85xx_cds_common.c9
-rw-r--r--arch/x86_64/pci/mmconfig.c13
-rw-r--r--drivers/pci/Makefile6
-rw-r--r--drivers/pci/bus.c21
-rw-r--r--drivers/pci/msi-altix.c210
-rw-r--r--drivers/pci/msi-apic.c100
-rw-r--r--drivers/pci/msi.c285
-rw-r--r--drivers/pci/msi.h133
-rw-r--r--drivers/pci/pci-acpi.c16
-rw-r--r--drivers/pci/pci-sysfs.c45
-rw-r--r--drivers/pci/pci.c16
-rw-r--r--drivers/pci/pci.h2
-rw-r--r--drivers/pci/probe.c45
-rw-r--r--drivers/pci/quirks.c47
-rw-r--r--drivers/pci/remove.c12
-rw-r--r--drivers/pci/search.c32
-rw-r--r--drivers/pci/setup-bus.c5
-rw-r--r--drivers/pci/setup-res.c40
-rw-r--r--drivers/scsi/qla1280.c24
-rw-r--r--drivers/scsi/sata_vsc.c11
-rw-r--r--include/asm-i386/msi.h10
-rw-r--r--include/asm-ia64/hw_irq.h15
-rw-r--r--include/asm-ia64/machvec.h7
-rw-r--r--include/asm-ia64/machvec_sn2.h7
-rw-r--r--include/asm-ia64/msi.h12
-rw-r--r--include/asm-ia64/sn/intr.h8
-rw-r--r--include/asm-ia64/sn/pcibr_provider.h5
-rw-r--r--include/asm-ia64/sn/pcibus_provider_defs.h17
-rw-r--r--include/asm-ia64/sn/tiocp.h3
-rw-r--r--include/asm-x86_64/msi.h10
-rw-r--r--include/linux/pci.h4
-rw-r--r--include/linux/pci_ids.h11
45 files changed, 1096 insertions, 436 deletions
diff --git a/Documentation/pci.txt b/Documentation/pci.txt
index 66bbbf1d1ef..3242e5c1ee9 100644
--- a/Documentation/pci.txt
+++ b/Documentation/pci.txt
@@ -213,9 +213,17 @@ have been remapped by the kernel.
See Documentation/IO-mapping.txt for how to access device memory.
- You still need to call request_region() for I/O regions and
-request_mem_region() for memory regions to make sure nobody else is using the
-same device.
+ The device driver needs to call pci_request_region() to make sure
+no other device is already using the same resource. The driver is expected
+to determine MMIO and IO Port resource availability _before_ calling
+pci_enable_device(). Conversely, drivers should call pci_release_region()
+_after_ calling pci_disable_device(). The idea is to prevent two devices
+colliding on the same address range.
+
+Generic flavors of pci_request_region() are request_mem_region()
+(for MMIO ranges) and request_region() (for IO Port ranges).
+Use these for address resources that are not described by "normal" PCI
+interfaces (e.g. BAR).
All interrupt handlers should be registered with SA_SHIRQ and use the devid
to map IRQs to devices (remember that all PCI interrupts are shared).
diff --git a/arch/i386/kernel/acpi/boot.c b/arch/i386/kernel/acpi/boot.c
index 40e5aba3ad3..fbe93084244 100644
--- a/arch/i386/kernel/acpi/boot.c
+++ b/arch/i386/kernel/acpi/boot.c
@@ -202,6 +202,8 @@ int __init acpi_parse_mcfg(unsigned long phys_addr, unsigned long size)
if (mcfg->config[i].base_reserved) {
printk(KERN_ERR PREFIX
"MMCONFIG not in low 4GB of memory\n");
+ kfree(pci_mmcfg_config);
+ pci_mmcfg_config_num = 0;
return -ENODEV;
}
}
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index dbece776c5b..c624b61e110 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -288,6 +288,7 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
void pcibios_disable_device (struct pci_dev *dev)
{
+ pcibios_disable_resources(dev);
if (pcibios_disable_irq)
pcibios_disable_irq(dev);
}
diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c
index ed2c8c899bd..7852827a599 100644
--- a/arch/i386/pci/i386.c
+++ b/arch/i386/pci/i386.c
@@ -242,6 +242,15 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
return 0;
}
+void pcibios_disable_resources(struct pci_dev *dev)
+{
+ u16 cmd;
+
+ pci_read_config_word(dev, PCI_COMMAND, &cmd);
+ cmd &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
+ pci_write_config_word(dev, PCI_COMMAND, cmd);
+}
+
/*
* If we set up a device for bus mastering, we need to check the latency
* timer as certain crappy BIOSes forget to set it properly.
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 6b1ea0c9a57..e545b0992c4 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -15,7 +15,9 @@
#include <asm/e820.h>
#include "pci.h"
-#define MMCONFIG_APER_SIZE (256*1024*1024)
+/* aperture is up to 256MB but BIOS may reserve less */
+#define MMCONFIG_APER_MIN (2 * 1024*1024)
+#define MMCONFIG_APER_MAX (256 * 1024*1024)
/* Assume systems with more busses have correct MCFG */
#define MAX_CHECK_BUS 16
@@ -197,9 +199,10 @@ void __init pci_mmcfg_init(void)
return;
if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
- pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
+ pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
E820_RESERVED)) {
- printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
+ printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+ pci_mmcfg_config[0].base_address);
printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
return;
}
diff --git a/arch/i386/pci/pci.h b/arch/i386/pci/pci.h
index 12035e29108..12bf3d8dda2 100644
--- a/arch/i386/pci/pci.h
+++ b/arch/i386/pci/pci.h
@@ -35,6 +35,7 @@ extern unsigned int pcibios_max_latency;
void pcibios_resource_survey(void);
int pcibios_enable_resources(struct pci_dev *, int);
+void pcibios_disable_resources(struct pci_dev *);
/* pci-pc.c */
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 6c4d59fd036..ef9a2b49307 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -46,6 +46,10 @@
#define IRQ_DEBUG 0
+/* These can be overridden in platform_irq_init */
+int ia64_first_device_vector = IA64_DEF_FIRST_DEVICE_VECTOR;
+int ia64_last_device_vector = IA64_DEF_LAST_DEVICE_VECTOR;
+
/* default base addr of IPI table */
void __iomem *ipi_base_addr = ((void __iomem *)
(__IA64_UNCACHED_OFFSET | IA64_IPI_DEFAULT_BASE_ADDR));
@@ -60,7 +64,7 @@ __u8 isa_irq_to_vector_map[16] = {
};
EXPORT_SYMBOL(isa_irq_to_vector_map);
-static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_NUM_DEVICE_VECTORS)];
+static unsigned long ia64_vector_mask[BITS_TO_LONGS(IA64_MAX_DEVICE_VECTORS)];
int
assign_irq_vector (int irq)
@@ -89,6 +93,19 @@ free_irq_vector (int vector)
printk(KERN_WARNING "%s: double free!\n", __FUNCTION__);
}
+int
+reserve_irq_vector (int vector)
+{
+ int pos;
+
+ if (vector < IA64_FIRST_DEVICE_VECTOR ||
+ vector > IA64_LAST_DEVICE_VECTOR)
+ return -EINVAL;
+
+ pos = vector - IA64_FIRST_DEVICE_VECTOR;
+ return test_and_set_bit(pos, ia64_vector_mask);
+}
+
#ifdef CONFIG_SMP
# define IS_RESCHEDULE(vec) (vec == IA64_IPI_RESCHEDULE)
#else
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 5101ac46264..dc09a6a28a3 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -58,7 +58,7 @@ static int max_pcibus_number = 255; /* Default highest pci bus number */
*/
static dma_addr_t
-sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size)
+sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
{
return 0;
}
@@ -457,13 +457,6 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
pcidev_info->pdi_sn_irq_info = NULL;
kfree(sn_irq_info);
}
-
- /*
- * MSI currently not supported on altix. Remove this when
- * the MSI abstraction patches are integrated into the kernel
- * (sometime after 2.6.16 releases)
- */
- dev->no_msi = 1;
}
/*
diff --git a/arch/ia64/sn/kernel/irq.c b/arch/ia64/sn/kernel/irq.c
index c265e02f503..dc8e2b69671 100644
--- a/arch/ia64/sn/kernel/irq.c
+++ b/arch/ia64/sn/kernel/irq.c
@@ -26,11 +26,11 @@ static void unregister_intr_pda(struct sn_irq_info *sn_irq_info);
int sn_force_interrupt_flag = 1;
extern int sn_ioif_inited;
-static struct list_head **sn_irq_lh;
+struct list_head **sn_irq_lh;
static spinlock_t sn_irq_info_lock = SPIN_LOCK_UNLOCKED; /* non-IRQ lock */
-static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
- u64 sn_irq_info,
+u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
+ struct sn_irq_info *sn_irq_info,
int req_irq, nasid_t req_nasid,
int req_slice)
{
@@ -40,12 +40,13 @@ static inline u64 sn_intr_alloc(nasid_t local_nasid, int local_widget,
SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_INTERRUPT,
(u64) SAL_INTR_ALLOC, (u64) local_nasid,
- (u64) local_widget, (u64) sn_irq_info, (u64) req_irq,
+ (u64) local_widget, __pa(sn_irq_info), (u64) req_irq,
(u64) req_nasid, (u64) req_slice);
+
return ret_stuff.status;
}
-static inline void sn_intr_free(nasid_t local_nasid, int local_widget,
+void sn_intr_free(nasid_t local_nasid, int local_widget,
struct sn_irq_info *sn_irq_info)
{
struct ia64_sal_retval ret_stuff;
@@ -112,73 +113,91 @@ static void sn_end_irq(unsigned int irq)
static void sn_irq_info_free(struct rcu_head *head);
-static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
+struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *sn_irq_info,
+ nasid_t nasid, int slice)
{
- struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
- int cpuid, cpuphys;
+ int vector;
+ int cpuphys;
+ int64_t bridge;
+ int local_widget, status;
+ nasid_t local_nasid;
+ struct sn_irq_info *new_irq_info;
+ struct sn_pcibus_provider *pci_provider;
- cpuid = first_cpu(mask);
- cpuphys = cpu_physical_id(cpuid);
+ new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
+ if (new_irq_info == NULL)
+ return NULL;
- list_for_each_entry_safe(sn_irq_info, sn_irq_info_safe,
- sn_irq_lh[irq], list) {
- u64 bridge;
- int local_widget, status;
- nasid_t local_nasid;
- struct sn_irq_info *new_irq_info;
- struct sn_pcibus_provider *pci_provider;
-
- new_irq_info = kmalloc(sizeof(struct sn_irq_info), GFP_ATOMIC);
- if (new_irq_info == NULL)
- break;
- memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
-
- bridge = (u64) new_irq_info->irq_bridge;
- if (!bridge) {
- kfree(new_irq_info);
- break; /* irq is not a device interrupt */
- }
+ memcpy(new_irq_info, sn_irq_info, sizeof(struct sn_irq_info));
+
+ bridge = (u64) new_irq_info->irq_bridge;
+ if (!bridge) {
+ kfree(new_irq_info);
+ return NULL; /* irq is not a device interrupt */
+ }
- local_nasid = NASID_GET(bridge);
+ local_nasid = NASID_GET(bridge);
- if (local_nasid & 1)
- local_widget = TIO_SWIN_WIDGETNUM(bridge);
- else
- local_widget = SWIN_WIDGETNUM(bridge);
+ if (local_nasid & 1)
+ local_widget = TIO_SWIN_WIDGETNUM(bridge);
+ else
+ local_widget = SWIN_WIDGETNUM(bridge);
- /* Free the old PROM new_irq_info structure */
- sn_intr_free(local_nasid, local_widget, new_irq_info);
- /* Update kernels new_irq_info with new target info */
- unregister_intr_pda(new_irq_info);
+ vector = sn_irq_info->irq_irq;
+ /* Free the old PROM new_irq_info structure */
+ sn_intr_free(local_nasid, local_widget, new_irq_info);
+ /* Update kernels new_irq_info with new target info */
+ unregister_intr_pda(new_irq_info);
- /* allocate a new PROM new_irq_info struct */
- status = sn_intr_alloc(local_nasid, local_widget,
- __pa(new_irq_info), irq,
- cpuid_to_nasid(cpuid),
- cpuid_to_slice(cpuid));
+ /* allocate a new PROM new_irq_info struct */
+ status = sn_intr_alloc(local_nasid, local_widget,
+ new_irq_info, vector,
+ nasid, slice);
- /* SAL call failed */
- if (status) {
- kfree(new_irq_info);
- break;
- }
+ /* SAL call failed */
+ if (status) {
+ kfree(new_irq_info);
+ return NULL;
+ }
- new_irq_info->irq_cpuid = cpuid;
- register_intr_pda(new_irq_info);
+ cpuphys = nasid_slice_to_cpuid(nasid, slice);
+ new_irq_info->irq_cpuid = cpuphys;
+ register_intr_pda(new_irq_info);
- pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
- if (pci_provider && pci_provider->target_interrupt)
- (pci_provider->target_interrupt)(new_irq_info);
+ pci_provider = sn_pci_provider[new_irq_info->irq_bridge_type];
- spin_lock(&sn_irq_info_lock);
- list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
- spin_unlock(&sn_irq_info_lock);
- call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
+ /*
+ * If this represents a line interrupt, target it. If it's
+ * an msi (irq_int_bit < 0), it's already targeted.
+ */
+ if (new_irq_info->irq_int_bit >= 0 &&
+ pci_provider && pci_provider->target_interrupt)
+ (pci_provider->target_interrupt)(new_irq_info);
+
+ spin_lock(&sn_irq_info_lock);
+ list_replace_rcu(&sn_irq_info->list, &new_irq_info->list);
+ spin_unlock(&sn_irq_info_lock);
+ call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
#ifdef CONFIG_SMP
- set_irq_affinity_info((irq & 0xff), cpuphys, 0);
+ set_irq_affinity_info((vector & 0xff), cpuphys, 0);
#endif
- }
+
+ return new_irq_info;
+}
+
+static void sn_set_affinity_irq(unsigned int irq, cpumask_t mask)
+{
+ struct sn_irq_info *sn_irq_info, *sn_irq_info_safe;
+ nasid_t nasid;
+ int slice;
+
+ nasid = cpuid_to_nasid(first_cpu(mask));
+ slice = cpuid_to_slice(first_cpu(mask));
+
+ list_for_each_entry_safe(sn_irq_info, sn_irq_info_safe,
+ sn_irq_lh[irq], list)
+ (void)sn_retarget_vector(sn_irq_info, nasid, slice);
}
struct hw_interrupt_type irq_type_sn = {
@@ -202,6 +221,9 @@ void sn_irq_init(void)
int i;
irq_desc_t *base_desc = irq_desc;
+ ia64_first_device_vector = IA64_SN2_FIRST_DEVICE_VECTOR;
+ ia64_last_device_vector = IA64_SN2_LAST_DEVICE_VECTOR;
+
for (i = 0; i < NR_IRQS; i++) {
if (base_desc[i].handler == &no_irq_type) {
base_desc[i].handler = &irq_type_sn;
@@ -285,6 +307,7 @@ void sn_irq_fixup(struct pci_dev *pci_dev, struct sn_irq_info *sn_irq_info)
/* link it into the sn_irq[irq] list */
spin_lock(&sn_irq_info_lock);
list_add_rcu(&sn_irq_info->list, sn_irq_lh[sn_irq_info->irq_irq]);
+ reserve_irq_vector(sn_irq_info->irq_irq);
spin_unlock(&sn_irq_info_lock);
register_intr_pda(sn_irq_info);
@@ -310,8 +333,11 @@ void sn_irq_unfixup(struct pci_dev *pci_dev)
spin_lock(&sn_irq_info_lock);
list_del_rcu(&sn_irq_info->list);
spin_unlock(&sn_irq_info_lock);
+ if (list_empty(sn_irq_lh[sn_irq_info->irq_irq]))
+ free_irq_vector(sn_irq_info->irq_irq);
call_rcu(&sn_irq_info->rcu, sn_irq_info_free);
pci_dev_put(pci_dev);
+
}
static inline void
diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c
index b4b84c26921..7a291a27151 100644
--- a/arch/ia64/sn/pci/pci_dma.c
+++ b/arch/ia64/sn/pci/pci_dma.c
@@ -11,7 +11,7 @@
#include <linux/module.h>
#include <asm/dma.h>
-#include <asm/sn/pcibr_provider.h>
+#include <asm/sn/intr.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/pcidev.h>
#include <asm/sn/sn_sal.h>
@@ -113,7 +113,8 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size,
* resources.
*/
- *dma_handle = provider->dma_map_consistent(pdev, phys_addr, size);
+ *dma_handle = provider->dma_map_consistent(pdev, phys_addr, size,
+ SN_DMA_ADDR_PHYS);
if (!*dma_handle) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
free_pages((unsigned long)cpuaddr, get_order(size));
@@ -176,7 +177,7 @@ dma_addr_t sn_dma_map_single(struct device *dev, void *cpu_addr, size_t size,
BUG_ON(dev->bus != &pci_bus_type);
phys_addr = __pa(cpu_addr);
- dma_addr = provider->dma_map(pdev, phys_addr, size);
+ dma_addr = provider->dma_map(pdev, phys_addr, size, SN_DMA_ADDR_PHYS);
if (!dma_addr) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
return 0;
@@ -260,7 +261,8 @@ int sn_dma_map_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
for (i = 0; i < nhwentries; i++, sg++) {
phys_addr = SG_ENT_PHYS_ADDRESS(sg);
sg->dma_address = provider->dma_map(pdev,
- phys_addr, sg->length);
+ phys_addr, sg->length,
+ SN_DMA_ADDR_PHYS);
if (!sg->dma_address) {
printk(KERN_ERR "%s: out of ATEs\n", __FUNCTION__);
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_dma.c b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
index 9f86bb6519a..a86c7b94596 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_dma.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_dma.c
@@ -41,7 +41,7 @@ extern int sn_ioif_inited;
static dma_addr_t
pcibr_dmamap_ate32(struct pcidev_info *info,
- u64 paddr, size_t req_size, u64 flags)
+ u64 paddr, size_t req_size, u64 flags, int dma_flags)
{
struct pcidev_info *pcidev_info = info->pdi_host_pcidev_info;
@@ -81,9 +81,12 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (IS_PCIX(pcibus_info))
ate_flags &= ~(PCI32_ATE_PREF);
- xio_addr =
- IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
- PHYS_TO_TIODMA(paddr);
+ if (SN_DMA_ADDRTYPE(dma_flags == SN_DMA_ADDR_PHYS))
+ xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
+ PHYS_TO_TIODMA(paddr);
+ else
+ xio_addr = paddr;
+
offset = IOPGOFF(xio_addr);
ate = ate_flags | (xio_addr - offset);
@@ -91,6 +94,13 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (IS_PIC_SOFT(pcibus_info)) {
ate |= (pcibus_info->pbi_hub_xid << PIC_ATE_TARGETID_SHFT);
}
+
+ /*
+ * If we're mapping for MSI, set the MSI bit in the ATE
+ */
+ if (dma_flags & SN_DMA_MSI)
+ ate |= PCI32_ATE_MSI;
+
ate_write(pcibus_info, ate_index, ate_count, ate);
/*
@@ -105,20 +115,27 @@ pcibr_dmamap_ate32(struct pcidev_info *info,
if (pcibus_info->pbi_devreg[internal_device] & PCIBR_DEV_SWAP_DIR)
ATE_SWAP_ON(pci_addr);
+
return pci_addr;
}
static dma_addr_t
pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
- u64 dma_attributes)
+ u64 dma_attributes, int dma_flags)
{
struct pcibus_info *pcibus_info = (struct pcibus_info *)
((info->pdi_host_pcidev_info)->pdi_pcibus_info);
u64 pci_addr;
/* Translate to Crosstalk View of Physical Address */
- pci_addr = (IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
- PHYS_TO_TIODMA(paddr)) | dma_attributes;
+ if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
+ pci_addr = IS_PIC_SOFT(pcibus_info) ?
+ PHYS_TO_DMA(paddr) :
+ PHYS_TO_TIODMA(paddr) | dma_attributes;
+ else
+ pci_addr = IS_PIC_SOFT(pcibus_info) ?
+ paddr :
+ paddr | dma_attributes;
/* Handle Bus mode */
if (IS_PCIX(pcibus_info))
@@ -130,7 +147,9 @@ pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
((u64) pcibus_info->
pbi_hub_xid << PIC_PCI64_ATTR_TARG_SHFT);
} else
- pci_addr |= TIOCP_PCI64_CMDTYPE_MEM;
+ pci_addr |= (dma_flags & SN_DMA_MSI) ?
+ TIOCP_PCI64_CMDTYPE_MSI :
+ TIOCP_PCI64_CMDTYPE_MEM;
/* If PCI mode, func zero uses VCHAN0, every other func uses VCHAN1 */
if (!IS_PCIX(pcibus_info) && PCI_FUNC(info->pdi_linux_pcidev->devfn))
@@ -141,7 +160,7 @@ pcibr_dmatrans_direct64(struct pcidev_info * info, u64 paddr,
static dma_addr_t
pcibr_dmatrans_direct32(struct pcidev_info * info,
- u64 paddr, size_t req_size, u64 flags)
+ u64 paddr, size_t req_size, u64 flags, int dma_flags)
{
struct pcidev_info *pcidev_info = info->pdi_host_pcidev_info;
struct pcibus_info *pcibus_info = (struct pcibus_info *)pcidev_info->
@@ -156,8 +175,14 @@ pcibr_dmatrans_direct32(struct pcidev_info * info,
return 0;
}
- xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
- PHYS_TO_TIODMA(paddr);
+ if (dma_flags & SN_DMA_MSI)
+ return 0;
+
+ if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
+ xio_addr = IS_PIC_SOFT(pcibus_info) ? PHYS_TO_DMA(paddr) :
+ PHYS_TO_TIODMA(paddr);
+ else
+ xio_addr = paddr;
xio_base = pcibus_info->pbi_dir_xbase;
offset = xio_addr - xio_base;
@@ -327,7 +352,7 @@ void sn_dma_flush(u64 addr)
*/
dma_addr_t
-pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
+pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size, int dma_flags)
{
dma_addr_t dma_handle;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
@@ -344,11 +369,11 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
*/
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
- PCI64_ATTR_PREF);
+ PCI64_ATTR_PREF, dma_flags);
} else {
/* Handle 32-63 bit cards via direct mapping */
dma_handle = pcibr_dmatrans_direct32(pcidev_info, phys_addr,
- size, 0);
+ size, 0, dma_flags);
if (!dma_handle) {
/*
* It is a 32 bit card and we cannot do direct mapping,
@@ -356,7 +381,8 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
*/
dma_handle = pcibr_dmamap_ate32(pcidev_info, phys_addr,
- size, PCI32_ATE_PREF);
+ size, PCI32_ATE_PREF,
+ dma_flags);
}
}
@@ -365,18 +391,18 @@ pcibr_dma_map(struct pci_dev * hwdev, unsigned long phys_addr, size_t size)
dma_addr_t
pcibr_dma_map_consistent(struct pci_dev * hwdev, unsigned long phys_addr,
- size_t size)
+ size_t size, int dma_flags)
{
dma_addr_t dma_handle;
struct pcidev_info *pcidev_info = SN_PCIDEV_INFO(hwdev);
if (hwdev->dev.coherent_dma_mask == ~0UL) {
dma_handle = pcibr_dmatrans_direct64(pcidev_info, phys_addr,
- PCI64_ATTR_BAR);
+ PCI64_ATTR_BAR, dma_flags);
} else {
dma_handle = (dma_addr_t) pcibr_dmamap_ate32(pcidev_info,
phys_addr, size,
- PCI32_ATE_BAR);
+ PCI32_ATE_BAR, dma_flags);
}
return dma_handle;
diff --git a/arch/ia64/sn/pci/tioca_provider.c b/arch/ia64/sn/pci/tioca_provider.c
index be017691296..20de72791b9 100644
--- a/arch/ia64/sn/pci/tioca_provider.c
+++ b/arch/ia64/sn/pci/tioca_provider.c
@@ -515,11 +515,17 @@ tioca_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
* use the GART mapped mode.
*/
static u64
-tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count)
+tioca_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
u64 mapaddr;
/*
+ * Not supported for now ...
+ */
+ if (dma_flags & SN_DMA_MSI)
+ return 0;
+
+ /*
* If card is 64 or 48 bit addresable, use a direct mapping. 32
* bit direct is so restrictive w.r.t. where the memory resides that
* we don't use it even though CA has some support.
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 833295624e5..4cac7bdc7c7 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -170,7 +170,8 @@ tioce_mmr_war_post(struct tioce_kernel *kern, void *mmr_addr)
(ATE_PAGE((start)+(len)-1, pagesize) - ATE_PAGE(start, pagesize) + 1)
#define ATE_VALID(ate) ((ate) & (1UL << 63))
-#define ATE_MAKE(addr, ps) (((addr) & ~ATE_PAGEMASK(ps)) | (1UL << 63))
+#define ATE_MAKE(addr, ps, msi) \
+ (((addr) & ~ATE_PAGEMASK(ps)) | (1UL << 63) | ((msi)?(1UL << 62):0))
/*
* Flavors of ate-based mapping supported by tioce_alloc_map()
@@ -196,15 +197,17 @@ tioce_mmr_war_post(struct tioce_kernel *kern, void *mmr_addr)
*
* 63 - must be 1 to indicate d64 mode to CE hardware
* 62 - barrier bit ... controlled with tioce_dma_barrier()
- * 61 - 0 since this is not an MSI transaction
+ * 61 - msi bit ... specified through dma_flags
* 60:54 - reserved, MBZ
*/
static u64
-tioce_dma_d64(unsigned long ct_addr)
+tioce_dma_d64(unsigned long ct_addr, int dma_flags)
{
u64 bus_addr;
bus_addr = ct_addr | (1UL << 63);
+ if (dma_flags & SN_DMA_MSI)
+ bus_addr |= (1UL << 61);
return bus_addr;
}
@@ -261,7 +264,7 @@ pcidev_to_tioce(struct pci_dev *pdev, struct tioce **base,
*/
static u64
tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
- u64 ct_addr, int len)
+ u64 ct_addr, int len, int dma_flags)
{
int i;
int j;
@@ -270,6 +273,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
int entries;
int nates;
u64 pagesize;
+ int msi_capable, msi_wanted;
u64 *ate_shadow;
u64 *ate_reg;
u64 addr;
@@ -291,6 +295,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate3240;
pagesize = ce_kern->ce_ate3240_pagesize;
bus_base = TIOCE_M32_MIN;
+ msi_capable = 1;
break;
case TIOCE_ATE_M40:
first = 0;
@@ -299,6 +304,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate40;
pagesize = MB(64);
bus_base = TIOCE_M40_MIN;
+ msi_capable = 0;
break;
case TIOCE_ATE_M40S:
/*
@@ -311,11 +317,16 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
ate_reg = ce_mmr->ce_ure_ate3240;
pagesize = GB(16);
bus_base = TIOCE_M40S_MIN;
+ msi_capable = 0;
break;
default:
return 0;
}
+ msi_wanted = dma_flags & SN_DMA_MSI;
+ if (msi_wanted && !msi_capable)
+ return 0;
+
nates = ATE_NPAGES(ct_addr, len, pagesize);
if (nates > entries)
return 0;
@@ -344,7 +355,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
for (j = 0; j < nates; j++) {
u64 ate;
- ate = ATE_MAKE(addr, pagesize);
+ ate = ATE_MAKE(addr, pagesize, msi_wanted);
ate_shadow[i + j] = ate;
tioce_mmr_storei(ce_kern, &ate_reg[i + j], ate);
addr += pagesize;
@@ -371,7 +382,7 @@ tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
* Map @paddr into 32-bit bus space of the CE associated with @pcidev_info.
*/
static u64
-tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr)
+tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr, int dma_flags)
{
int dma_ok;
int port;
@@ -381,6 +392,9 @@ tioce_dma_d32(struct pci_dev *pdev, u64 ct_addr)
u64 ct_lower;
dma_addr_t bus_addr;
+ if (dma_flags & SN_DMA_MSI)
+ return 0;
+
ct_upper = ct_addr & ~0x3fffffffUL;
ct_lower = ct_addr & 0x3fffffffUL;
@@ -507,7 +521,7 @@ tioce_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
*/
static u64
tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
- int barrier)
+ int barrier, int dma_flags)
{
unsigned long flags;
u64 ct_addr;
@@ -523,15 +537,18 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (dma_mask < 0x7fffffffUL)
return 0;
- ct_addr = PHYS_TO_TIODMA(paddr);
+ if (SN_DMA_ADDRTYPE(dma_flags) == SN_DMA_ADDR_PHYS)
+ ct_addr = PHYS_TO_TIODMA(paddr);
+ else
+ ct_addr = paddr;
/*
* If the device can generate 64 bit addresses, create a D64 map.
- * Since this should never fail, bypass the rest of the checks.
*/
if (dma_mask == ~0UL) {
- mapaddr = tioce_dma_d64(ct_addr);
- goto dma_map_done;
+ mapaddr = tioce_dma_d64(ct_addr, dma_flags);
+ if (mapaddr)
+ goto dma_map_done;
}
pcidev_to_tioce(pdev, NULL, &ce_kern, &port);
@@ -574,18 +591,22 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (byte_count > MB(64)) {
mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
- port, ct_addr, byte_count);
+ port, ct_addr, byte_count,
+ dma_flags);
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
- ct_addr, byte_count);
+ ct_addr, byte_count,
+ dma_flags);
} else {
mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
- ct_addr, byte_count);
+ ct_addr, byte_count,
+ dma_flags);
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
- port, ct_addr, byte_count);
+ port, ct_addr, byte_count,
+ dma_flags);
}
}
@@ -593,7 +614,7 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
* 32-bit direct is the next mode to try
*/
if (!mapaddr && dma_mask >= 0xffffffffUL)
- mapaddr = tioce_dma_d32(pdev, ct_addr);
+ mapaddr = tioce_dma_d32(pdev, ct_addr, dma_flags);
/*
* Last resort, try 32-bit ATE-based map.
@@ -601,7 +622,7 @@ tioce_do_dma_map(struct pci_dev *pdev, u64 paddr, size_t byte_count,
if (!mapaddr)
mapaddr =
tioce_alloc_map(ce_kern, TIOCE_ATE_M32, -1, ct_addr,
- byte_count);
+ byte_count, dma_flags);
spin_unlock_irqrestore(&ce_kern->ce_lock, flags);
@@ -622,9 +643,9 @@ dma_map_done:
* in the address.
*/
static u64
-tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count)
+tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
- return tioce_do_dma_map(pdev, paddr, byte_count, 0);
+ return tioce_do_dma_map(pdev, paddr, byte_count, 0, dma_flags);
}
/**
@@ -636,9 +657,9 @@ tioce_dma(struct pci_dev *pdev, u64 paddr, size_t byte_count)
* Simply call tioce_do_dma_map() to create a map with the barrier bit set
* in the address.
*/ static u64
-tioce_dma_consistent(struct pci_dev *pdev, u64 paddr, size_t byte_count)
+tioce_dma_consistent(struct pci_dev *pdev, u64 paddr, size_t byte_count, int dma_flags)
{
- return tioce_do_dma_map(pdev, paddr, byte_count, 1);
+ return tioce_do_dma_map(pdev, paddr, byte_count, 1, dma_flags);
}
/**
@@ -696,7 +717,7 @@ tioce_reserve_m32(struct tioce_kernel *ce_kern, u64 base, u64 limit)
while (ate_index <= last_ate) {
u64 ate;
- ate = ATE_MAKE(0xdeadbeef, ps);
+ ate = ATE_MAKE(0xdeadbeef, ps, 0);
ce_kern->ce_ate3240_shadow[ate_index] = ate;
tioce_mmr_storei(ce_kern, &ce_mmr->ce_ure_ate3240[ate_index],
ate);
diff --git a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
index c9e0aeeca3d..4368dc3f3c3 100644
--- a/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
+++ b/arch/ppc/platforms/85xx/mpc85xx_cds_common.c
@@ -379,13 +379,12 @@ mpc85xx_cds_pcibios_fixup(void)
PCI_DEVICE_ID_VIA_82C586_2, NULL))) {
dev->irq = 10;
pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 10);
- pci_dev_put(dev);
- }
- if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
+ if ((dev = pci_get_device(PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_82C586_2, dev))) {
- dev->irq = 11;
- pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
+ dev->irq = 11;
+ pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 11);
+ }
pci_dev_put(dev);
}
}
diff --git a/arch/x86_64/pci/mmconfig.c b/arch/x86_64/pci/mmconfig.c
index a2060e4d5de..3c55c76c6fd 100644
--- a/arch/x86_64/pci/mmconfig.c
+++ b/arch/x86_64/pci/mmconfig.c
@@ -13,7 +13,10 @@
#include "pci.h"
-#define MMCONFIG_APER_SIZE (256*1024*1024)
+/* aperture is up to 256MB but BIOS may reserve less */
+#define MMCONFIG_APER_MIN (2 * 1024*1024)
+#define MMCONFIG_APER_MAX (256 * 1024*1024)
+
/* Verify the first 16 busses. We assume that systems with more busses
get MCFG right. */
#define MAX_CHECK_BUS 16
@@ -175,9 +178,10 @@ void __init pci_mmcfg_init(void)
return;
if (!e820_all_mapped(pci_mmcfg_config[0].base_address,
- pci_mmcfg_config[0].base_address + MMCONFIG_APER_SIZE,
+ pci_mmcfg_config[0].base_address + MMCONFIG_APER_MIN,
E820_RESERVED)) {
- printk(KERN_ERR "PCI: BIOS Bug: MCFG area is not E820-reserved\n");
+ printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %x is not E820-reserved\n",
+ pci_mmcfg_config[0].base_address);
printk(KERN_ERR "PCI: Not using MMCONFIG.\n");
return;
}
@@ -190,7 +194,8 @@ void __init pci_mmcfg_init(void)
}
for (i = 0; i < pci_mmcfg_config_num; ++i) {
pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i];
- pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address, MMCONFIG_APER_SIZE);
+ pci_mmcfg_virt[i].virt = ioremap_nocache(pci_mmcfg_config[i].base_address,
+ MMCONFIG_APER_MAX);
if (!pci_mmcfg_virt[i].virt) {
printk("PCI: Cannot map mmconfig aperture for segment %d\n",
pci_mmcfg_config[i].pci_segment_group_number);
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 6707df96893..f2d152b818f 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -26,7 +26,11 @@ obj-$(CONFIG_PPC32) += setup-irq.o
obj-$(CONFIG_PPC64) += setup-bus.o
obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
obj-$(CONFIG_X86_VISWS) += setup-irq.o
-obj-$(CONFIG_PCI_MSI) += msi.o
+
+msiobj-y := msi.o msi-apic.o
+msiobj-$(CONFIG_IA64_GENERIC) += msi-altix.o
+msiobj-$(CONFIG_IA64_SGI_SN2) += msi-altix.o
+obj-$(CONFIG_PCI_MSI) += $(msiobj-y)
#
# ACPI Related PCI FW Functions
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
index eed67d9e73b..72309268202 100644
--- a/drivers/pci/bus.c
+++ b/drivers/pci/bus.c
@@ -81,9 +81,9 @@ void __devinit pci_bus_add_device(struct pci_dev *dev)
{
device_add(&dev->dev);
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_add_tail(&dev->global_list, &pci_devices);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
pci_proc_attach_device(dev);
pci_create_sysfs_dev_files(dev);
@@ -125,10 +125,10 @@ void __devinit pci_bus_add_devices(struct pci_bus *bus)
*/
if (dev->subordinate) {
if (list_empty(&dev->subordinate->node)) {
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_add_tail(&dev->subordinate->node,
&dev->bus->children);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
}
pci_bus_add_devices(dev->subordinate);
@@ -168,7 +168,7 @@ void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
struct list_head *next;
bus = top;
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
next = top->devices.next;
for (;;) {
if (next == &bus->devices) {
@@ -180,22 +180,19 @@ void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
continue;
}
dev = list_entry(next, struct pci_dev, bus_list);
- pci_dev_get(dev);
if (dev->subordinate) {
/* this is a pci-pci bridge, do its devices next */
next = dev->subordinate->devices.next;
bus = dev->subordinate;
} else
next = dev->bus_list.next;
- spin_unlock(&pci_bus_lock);
- /* Run device routines with the bus unlocked */
+ /* Run device routines with the device locked */
+ down(&dev->dev.sem);
cb(dev, userdata);
-
- spin_lock(&pci_bus_lock);
- pci_dev_put(dev);
+ up(&dev->dev.sem);
}
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
}
EXPORT_SYMBOL_GPL(pci_walk_bus);
diff --git a/drivers/pci/msi-altix.c b/drivers/pci/msi-altix.c
new file mode 100644
index 00000000000..bed4183a5e3
--- /dev/null
+++ b/drivers/pci/msi-altix.c
@@ -0,0 +1,210 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2006 Silicon Graphics, Inc. All Rights Reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/cpumask.h>
+
+#include <asm/sn/addrs.h>
+#include <asm/sn/intr.h>
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/pcidev.h>
+#include <asm/sn/nodepda.h>
+
+#include "msi.h"
+
+struct sn_msi_info {
+ u64 pci_addr;
+ struct sn_irq_info *sn_irq_info;
+};
+
+static struct sn_msi_info *sn_msi_info;
+
+static void
+sn_msi_teardown(unsigned int vector)
+{
+ nasid_t nasid;
+ int widget;
+ struct pci_dev *pdev;
+ struct pcidev_info *sn_pdev;
+ struct sn_irq_info *sn_irq_info;
+ struct pcibus_bussoft *bussoft;
+ struct sn_pcibus_provider *provider;
+
+ sn_irq_info = sn_msi_info[vector].sn_irq_info;
+ if (sn_irq_info == NULL || sn_irq_info->irq_int_bit >= 0)
+ return;
+
+ sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
+ pdev = sn_pdev->pdi_linux_pcidev;
+ provider = SN_PCIDEV_BUSPROVIDER(pdev);
+
+ (*provider->dma_unmap)(pdev,
+ sn_msi_info[vector].pci_addr,
+ PCI_DMA_FROMDEVICE);
+ sn_msi_info[vector].pci_addr = 0;
+
+ bussoft = SN_PCIDEV_BUSSOFT(pdev);
+ nasid = NASID_GET(bussoft->bs_base);
+ widget = (nasid & 1) ?
+ TIO_SWIN_WIDGETNUM(bussoft->bs_base) :
+ SWIN_WIDGETNUM(bussoft->bs_base);
+
+ sn_intr_free(nasid, widget, sn_irq_info);
+ sn_msi_info[vector].sn_irq_info = NULL;
+
+ return;
+}
+
+int
+sn_msi_setup(struct pci_dev *pdev, unsigned int vector,
+ u32 *addr_hi, u32 *addr_lo, u32 *data)
+{
+ int widget;
+ int status;
+ nasid_t nasid;
+ u64 bus_addr;
+ struct sn_irq_info *sn_irq_info;
+ struct pcibus_bussoft *bussoft = SN_PCIDEV_BUSSOFT(pdev);
+ struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev);
+
+ if (bussoft == NULL)
+ return -EINVAL;
+
+ if (provider == NULL || provider->dma_map_consistent == NULL)
+ return -EINVAL;
+
+ /*
+ * Set up the vector plumbing. Let the prom (via sn_intr_alloc)
+ * decide which cpu to direct this msi at by default.
+ */
+
+ nasid = NASID_GET(bussoft->bs_base);
+ widget = (nasid & 1) ?
+ TIO_SWIN_WIDGETNUM(bussoft->bs_base) :
+ SWIN_WIDGETNUM(bussoft->bs_base);
+
+ sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
+ if (! sn_irq_info)
+ return -ENOMEM;
+
+ status = sn_intr_alloc(nasid, widget, sn_irq_info, vector, -1, -1);
+ if (status) {
+ kfree(sn_irq_info);
+ return -ENOMEM;
+ }
+
+ sn_irq_info->irq_int_bit = -1; /* mark this as an MSI irq */
+ sn_irq_fixup(pdev, sn_irq_info);
+
+ /* Prom probably should fill these in, but doesn't ... */
+ sn_irq_info->irq_bridge_type = bussoft->bs_asic_type;
+ sn_irq_info->irq_bridge = (void *)bussoft->bs_base;
+
+ /*
+ * Map the xio address into bus space
+ */
+ bus_addr = (*provider->dma_map_consistent)(pdev,
+ sn_irq_info->irq_xtalkaddr,
+ sizeof(sn_irq_info->irq_xtalkaddr),
+ SN_DMA_MSI|SN_DMA_ADDR_XIO);
+ if (! bus_addr) {
+ sn_intr_free(nasid, widget, sn_irq_info);
+ kfree(sn_irq_info);
+ return -ENOMEM;
+ }
+
+ sn_msi_info[vector].sn_irq_info = sn_irq_info;
+ sn_msi_info[vector].pci_addr = bus_addr;
+
+ *addr_hi = (u32)(bus_addr >> 32);
+ *addr_lo = (u32)(bus_addr & 0x00000000ffffffff);
+
+ /*
+ * In the SN platform, bit 16 is a "send vector" bit which
+ * must be present in order to move the vector through the system.
+ */
+ *data = 0x100 + (unsigned int)vector;
+
+#ifdef CONFIG_SMP
+ set_irq_affinity_info((vector & 0xff), sn_irq_info->irq_cpuid, 0);
+#endif
+
+ return 0;
+}
+
+static void
+sn_msi_target(unsigned int vector, unsigned int cpu,
+ u32 *addr_hi, u32 *addr_lo)
+{
+ int slice;
+ nasid_t nasid;
+ u64 bus_addr;
+ struct pci_dev *pdev;
+ struct pcidev_info *sn_pdev;
+ struct sn_irq_info *sn_irq_info;
+ struct sn_irq_info *new_irq_info;
+ struct sn_pcibus_provider *provider;
+
+ sn_irq_info = sn_msi_info[vector].sn_irq_info;
+ if (sn_irq_info == NULL || sn_irq_info->irq_int_bit >= 0)
+ return;
+
+ /*
+ * Release XIO resources for the old MSI PCI address
+ */
+
+ sn_pdev = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
+ pdev = sn_pdev->pdi_linux_pcidev;
+ provider = SN_PCIDEV_BUSPROVIDER(pdev);
+
+ bus_addr = (u64)(*addr_hi) << 32 | (u64)(*addr_lo);
+ (*provider->dma_unmap)(pdev, bus_addr, PCI_DMA_FROMDEVICE);
+ sn_msi_info[vector].pci_addr = 0;
+
+ nasid = cpuid_to_nasid(cpu);
+ slice = cpuid_to_slice(cpu);
+
+ new_irq_info = sn_retarget_vector(sn_irq_info, nasid, slice);
+ sn_msi_info[vector].sn_irq_info = new_irq_info;
+ if (new_irq_info == NULL)
+ return;
+
+ /*
+ * Map the xio address into bus space
+ */
+
+ bus_addr = (*provider->dma_map_consistent)(pdev,
+ new_irq_info->irq_xtalkaddr,
+ sizeof(new_irq_info->irq_xtalkaddr),
+ SN_DMA_MSI|SN_DMA_ADDR_XIO);
+
+ sn_msi_info[vector].pci_addr = bus_addr;
+ *addr_hi = (u32)(bus_addr >> 32);
+ *addr_lo = (u32)(bus_addr & 0x00000000ffffffff);
+}
+
+struct msi_ops sn_msi_ops = {
+ .setup = sn_msi_setup,
+ .teardown = sn_msi_teardown,
+#ifdef CONFIG_SMP
+ .target = sn_msi_target,
+#endif
+};
+
+int
+sn_msi_init(void)
+{
+ sn_msi_info =
+ kzalloc(sizeof(struct sn_msi_info) * NR_VECTORS, GFP_KERNEL);
+ if (! sn_msi_info)
+ return -ENOMEM;
+
+ msi_register(&sn_msi_ops);
+ return 0;
+}
diff --git a/drivers/pci/msi-apic.c b/drivers/pci/msi-apic.c
new file mode 100644
index 00000000000..0eb5fe9003a
--- /dev/null
+++ b/drivers/pci/msi-apic.c
@@ -0,0 +1,100 @@
+/*
+ * MSI hooks for standard x86 apic
+ */
+
+#include <linux/pci.h>
+#include <linux/irq.h>
+
+#include "msi.h"
+
+/*
+ * Shifts for APIC-based data
+ */
+
+#define MSI_DATA_VECTOR_SHIFT 0
+#define MSI_DATA_VECTOR(v) (((u8)v) << MSI_DATA_VECTOR_SHIFT)
+
+#define MSI_DATA_DELIVERY_SHIFT 8
+#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_SHIFT)
+#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_SHIFT)
+
+#define MSI_DATA_LEVEL_SHIFT 14
+#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
+#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
+
+#define MSI_DATA_TRIGGER_SHIFT 15
+#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
+#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
+
+/*
+ * Shift/mask fields for APIC-based bus address
+ */
+
+#define MSI_ADDR_HEADER 0xfee00000
+
+#define MSI_ADDR_DESTID_MASK 0xfff0000f
+#define MSI_ADDR_DESTID_CPU(cpu) ((cpu) << MSI_TARGET_CPU_SHIFT)
+
+#define MSI_ADDR_DESTMODE_SHIFT 2
+#define MSI_ADDR_DESTMODE_PHYS (0 << MSI_ADDR_DESTMODE_SHIFT)
+#define MSI_ADDR_DESTMODE_LOGIC (1 << MSI_ADDR_DESTMODE_SHIFT)
+
+#define MSI_ADDR_REDIRECTION_SHIFT 3
+#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
+#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
+
+
+static void
+msi_target_apic(unsigned int vector,
+ unsigned int dest_cpu,
+ u32 *address_hi, /* in/out */
+ u32 *address_lo) /* in/out */
+{
+ u32 addr = *address_lo;
+
+ addr &= MSI_ADDR_DESTID_MASK;
+ addr |= MSI_ADDR_DESTID_CPU(cpu_physical_id(dest_cpu));
+
+ *address_lo = addr;
+}
+
+static int
+msi_setup_apic(struct pci_dev *pdev, /* unused in generic */
+ unsigned int vector,
+ u32 *address_hi,
+ u32 *address_lo,
+ u32 *data)
+{
+ unsigned long dest_phys_id;
+
+ dest_phys_id = cpu_physical_id(first_cpu(cpu_online_map));
+
+ *address_hi = 0;
+ *address_lo = MSI_ADDR_HEADER |
+ MSI_ADDR_DESTMODE_PHYS |
+ MSI_ADDR_REDIRECTION_CPU |
+ MSI_ADDR_DESTID_CPU(dest_phys_id);
+
+ *data = MSI_DATA_TRIGGER_EDGE |
+ MSI_DATA_LEVEL_ASSERT |
+ MSI_DATA_DELIVERY_FIXED |
+ MSI_DATA_VECTOR(vector);
+
+ return 0;
+}
+
+static void
+msi_teardown_apic(unsigned int vector)
+{
+ return; /* no-op */
+}
+
+/*
+ * Generic ops used on most IA archs/platforms. Set with msi_register()
+ */
+
+struct msi_ops msi_apic_ops = {
+ .setup = msi_setup_apic,
+ .teardown = msi_teardown_apic,
+ .target = msi_target_apic,
+};
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 9855c4c920b..7f8429284fa 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -23,8 +23,6 @@
#include "pci.h"
#include "msi.h"
-#define MSI_TARGET_CPU first_cpu(cpu_online_map)
-
static DEFINE_SPINLOCK(msi_lock);
static struct msi_desc* msi_desc[NR_IRQS] = { [0 ... NR_IRQS-1] = NULL };
static kmem_cache_t* msi_cachep;
@@ -37,9 +35,17 @@ static int nr_msix_devices;
#ifndef CONFIG_X86_IO_APIC
int vector_irq[NR_VECTORS] = { [0 ... NR_VECTORS - 1] = -1};
-u8 irq_vector[NR_IRQ_VECTORS] = { FIRST_DEVICE_VECTOR , 0 };
#endif
+static struct msi_ops *msi_ops;
+
+int
+msi_register(struct msi_ops *ops)
+{
+ msi_ops = ops;
+ return 0;
+}
+
static void msi_cache_ctor(void *p, kmem_cache_t *cache, unsigned long flags)
{
memset(p, 0, NR_IRQS * sizeof(struct msi_desc));
@@ -92,7 +98,7 @@ static void msi_set_mask_bit(unsigned int vector, int flag)
static void set_msi_affinity(unsigned int vector, cpumask_t cpu_mask)
{
struct msi_desc *entry;
- struct msg_address address;
+ u32 address_hi, address_lo;
unsigned int irq = vector;
unsigned int dest_cpu = first_cpu(cpu_mask);
@@ -108,28 +114,36 @@ static void set_msi_affinity(unsigned int vector, cpumask_t cpu_mask)
if (!pos)
return;
+ pci_read_config_dword(entry->dev, msi_upper_address_reg(pos),
+ &address_hi);
pci_read_config_dword(entry->dev, msi_lower_address_reg(pos),
- &address.lo_address.value);
- address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
- address.lo_address.value |= (cpu_physical_id(dest_cpu) <<
- MSI_TARGET_CPU_SHIFT);
- entry->msi_attrib.current_cpu = cpu_physical_id(dest_cpu);
+ &address_lo);
+
+ msi_ops->target(vector, dest_cpu, &address_hi, &address_lo);
+
+ pci_write_config_dword(entry->dev, msi_upper_address_reg(pos),
+ address_hi);
pci_write_config_dword(entry->dev, msi_lower_address_reg(pos),
- address.lo_address.value);
+ address_lo);
set_native_irq_info(irq, cpu_mask);
break;
}
case PCI_CAP_ID_MSIX:
{
- int offset = entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
- PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET;
-
- address.lo_address.value = readl(entry->mask_base + offset);
- address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
- address.lo_address.value |= (cpu_physical_id(dest_cpu) <<
- MSI_TARGET_CPU_SHIFT);
- entry->msi_attrib.current_cpu = cpu_physical_id(dest_cpu);
- writel(address.lo_address.value, entry->mask_base + offset);
+ int offset_hi =
+ entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET;
+ int offset_lo =
+ entry->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET;
+
+ address_hi = readl(entry->mask_base + offset_hi);
+ address_lo = readl(entry->mask_base + offset_lo);
+
+ msi_ops->target(vector, dest_cpu, &address_hi, &address_lo);
+
+ writel(address_hi, entry->mask_base + offset_hi);
+ writel(address_lo, entry->mask_base + offset_lo);
set_native_irq_info(irq, cpu_mask);
break;
}
@@ -251,30 +265,6 @@ static struct hw_interrupt_type msi_irq_wo_maskbit_type = {
.set_affinity = set_msi_affinity
};
-static void msi_data_init(struct msg_data *msi_data,
- unsigned int vector)
-{
- memset(msi_data, 0, sizeof(struct msg_data));
- msi_data->vector = (u8)vector;
- msi_data->delivery_mode = MSI_DELIVERY_MODE;
- msi_data->level = MSI_LEVEL_MODE;
- msi_data->trigger = MSI_TRIGGER_MODE;
-}
-
-static void msi_address_init(struct msg_address *msi_address)
-{
- unsigned int dest_id;
- unsigned long dest_phys_id = cpu_physical_id(MSI_TARGET_CPU);
-
- memset(msi_address, 0, sizeof(struct msg_address));
- msi_address->hi_address = (u32)0;
- dest_id = (MSI_ADDRESS_HEADER << MSI_ADDRESS_HEADER_SHIFT);
- msi_address->lo_address.u.dest_mode = MSI_PHYSICAL_MODE;
- msi_address->lo_address.u.redirection_hint = MSI_REDIRECTION_HINT_MODE;
- msi_address->lo_address.u.dest_id = dest_id;
- msi_address->lo_address.value |= (dest_phys_id << MSI_TARGET_CPU_SHIFT);
-}
-
static int msi_free_vector(struct pci_dev* dev, int vector, int reassign);
static int assign_msi_vector(void)
{
@@ -369,13 +359,29 @@ static int msi_init(void)
return status;
}
+ status = msi_arch_init();
+ if (status < 0) {
+ pci_msi_enable = 0;
+ printk(KERN_WARNING
+ "PCI: MSI arch init failed. MSI disabled.\n");
+ return status;
+ }
+
+ if (! msi_ops) {
+ printk(KERN_WARNING
+ "PCI: MSI ops not registered. MSI disabled.\n");
+ status = -EINVAL;
+ return status;
+ }
+
+ last_alloc_vector = assign_irq_vector(AUTO_ASSIGN);
status = msi_cache_init();
if (status < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING "PCI: MSI cache init failed\n");
return status;
}
- last_alloc_vector = assign_irq_vector(AUTO_ASSIGN);
+
if (last_alloc_vector < 0) {
pci_msi_enable = 0;
printk(KERN_WARNING "PCI: No interrupt vectors available for MSI\n");
@@ -442,9 +448,11 @@ static void enable_msi_mode(struct pci_dev *dev, int pos, int type)
/* Set enabled bits to single MSI & enable MSI_enable bit */
msi_enable(control, 1);
pci_write_config_word(dev, msi_control_reg(pos), control);
+ dev->msi_enabled = 1;
} else {
msix_enable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
+ dev->msix_enabled = 1;
}
if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
/* PCI Express Endpoint device detected */
@@ -461,9 +469,11 @@ void disable_msi_mode(struct pci_dev *dev, int pos, int type)
/* Set enabled bits to single MSI & enable MSI_enable bit */
msi_disable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
+ dev->msi_enabled = 0;
} else {
msix_disable(control);
pci_write_config_word(dev, msi_control_reg(pos), control);
+ dev->msix_enabled = 0;
}
if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
/* PCI Express Endpoint device detected */
@@ -538,7 +548,6 @@ int pci_save_msi_state(struct pci_dev *dev)
pci_read_config_dword(dev, pos + PCI_MSI_DATA_32, &cap[i++]);
if (control & PCI_MSI_FLAGS_MASKBIT)
pci_read_config_dword(dev, pos + PCI_MSI_MASK_BIT, &cap[i++]);
- disable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
save_state->cap_nr = PCI_CAP_ID_MSI;
pci_add_saved_cap(dev, save_state);
return 0;
@@ -575,6 +584,8 @@ void pci_restore_msi_state(struct pci_dev *dev)
int pci_save_msix_state(struct pci_dev *dev)
{
int pos;
+ int temp;
+ int vector, head, tail = 0;
u16 control;
struct pci_cap_saved_state *save_state;
@@ -582,6 +593,7 @@ int pci_save_msix_state(struct pci_dev *dev)
if (pos <= 0 || dev->no_msi)
return 0;
+ /* save the capability */
pci_read_config_word(dev, msi_control_reg(pos), &control);
if (!(control & PCI_MSIX_FLAGS_ENABLE))
return 0;
@@ -593,7 +605,38 @@ int pci_save_msix_state(struct pci_dev *dev)
}
*((u16 *)&save_state->data[0]) = control;
- disable_msi_mode(dev, pos, PCI_CAP_ID_MSIX);
+ /* save the table */
+ temp = dev->irq;
+ if (msi_lookup_vector(dev, PCI_CAP_ID_MSIX)) {
+ kfree(save_state);
+ return -EINVAL;
+ }
+
+ vector = head = dev->irq;
+ while (head != tail) {
+ int j;
+ void __iomem *base;
+ struct msi_desc *entry;
+
+ entry = msi_desc[vector];
+ base = entry->mask_base;
+ j = entry->msi_attrib.entry_nr;
+
+ entry->address_lo_save =
+ readl(base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
+ entry->address_hi_save =
+ readl(base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
+ entry->data_save =
+ readl(base + j * PCI_MSIX_ENTRY_SIZE +
+ PCI_MSIX_ENTRY_DATA_OFFSET);
+
+ tail = msi_desc[vector]->link.tail;
+ vector = tail;
+ }
+ dev->irq = temp;
+
save_state->cap_nr = PCI_CAP_ID_MSIX;
pci_add_saved_cap(dev, save_state);
return 0;
@@ -606,8 +649,6 @@ void pci_restore_msix_state(struct pci_dev *dev)
int vector, head, tail = 0;
void __iomem *base;
int j;
- struct msg_address address;
- struct msg_data data;
struct msi_desc *entry;
int temp;
struct pci_cap_saved_state *save_state;
@@ -633,20 +674,13 @@ void pci_restore_msix_state(struct pci_dev *dev)
base = entry->mask_base;
j = entry->msi_attrib.entry_nr;
- msi_address_init(&address);
- msi_data_init(&data, vector);
-
- address.lo_address.value &= MSI_ADDRESS_DEST_ID_MASK;
- address.lo_address.value |= entry->msi_attrib.current_cpu <<
- MSI_TARGET_CPU_SHIFT;
-
- writel(address.lo_address.value,
+ writel(entry->address_lo_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
- writel(address.hi_address,
+ writel(entry->address_hi_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
- writel(*(u32*)&data,
+ writel(entry->data_save,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_DATA_OFFSET);
@@ -660,30 +694,32 @@ void pci_restore_msix_state(struct pci_dev *dev)
}
#endif
-static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
+static int msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
{
- struct msg_address address;
- struct msg_data data;
+ int status;
+ u32 address_hi;
+ u32 address_lo;
+ u32 data;
int pos, vector = dev->irq;
u16 control;
pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
pci_read_config_word(dev, msi_control_reg(pos), &control);
+
/* Configure MSI capability structure */
- msi_address_init(&address);
- msi_data_init(&data, vector);
- entry->msi_attrib.current_cpu = ((address.lo_address.u.dest_id >>
- MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
- pci_write_config_dword(dev, msi_lower_address_reg(pos),
- address.lo_address.value);
+ status = msi_ops->setup(dev, vector, &address_hi, &address_lo, &data);
+ if (status < 0)
+ return status;
+
+ pci_write_config_dword(dev, msi_lower_address_reg(pos), address_lo);
if (is_64bit_address(control)) {
pci_write_config_dword(dev,
- msi_upper_address_reg(pos), address.hi_address);
+ msi_upper_address_reg(pos), address_hi);
pci_write_config_word(dev,
- msi_data_reg(pos, 1), *((u32*)&data));
+ msi_data_reg(pos, 1), data);
} else
pci_write_config_word(dev,
- msi_data_reg(pos, 0), *((u32*)&data));
+ msi_data_reg(pos, 0), data);
if (entry->msi_attrib.maskbit) {
unsigned int maskbits, temp;
/* All MSIs are unmasked by default, Mask them all */
@@ -697,6 +733,8 @@ static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
msi_mask_bits_reg(pos, is_64bit_address(control)),
maskbits);
}
+
+ return 0;
}
/**
@@ -710,6 +748,7 @@ static void msi_register_init(struct pci_dev *dev, struct msi_desc *entry)
**/
static int msi_capability_init(struct pci_dev *dev)
{
+ int status;
struct msi_desc *entry;
int pos, vector;
u16 control;
@@ -742,7 +781,12 @@ static int msi_capability_init(struct pci_dev *dev)
/* Replace with MSI handler */
irq_handler_init(PCI_CAP_ID_MSI, vector, entry->msi_attrib.maskbit);
/* Configure MSI capability structure */
- msi_register_init(dev, entry);
+ status = msi_register_init(dev, entry);
+ if (status != 0) {
+ dev->irq = entry->msi_attrib.default_vector;
+ kmem_cache_free(msi_cachep, entry);
+ return status;
+ }
attach_msi_entry(entry, vector);
/* Set MSI enabled bits */
@@ -765,8 +809,10 @@ static int msix_capability_init(struct pci_dev *dev,
struct msix_entry *entries, int nvec)
{
struct msi_desc *head = NULL, *tail = NULL, *entry = NULL;
- struct msg_address address;
- struct msg_data data;
+ u32 address_hi;
+ u32 address_lo;
+ u32 data;
+ int status;
int vector, pos, i, j, nr_entries, temp = 0;
unsigned long phys_addr;
u32 table_offset;
@@ -822,18 +868,20 @@ static int msix_capability_init(struct pci_dev *dev,
/* Replace with MSI-X handler */
irq_handler_init(PCI_CAP_ID_MSIX, vector, 1);
/* Configure MSI-X capability structure */
- msi_address_init(&address);
- msi_data_init(&data, vector);
- entry->msi_attrib.current_cpu =
- ((address.lo_address.u.dest_id >>
- MSI_TARGET_CPU_SHIFT) & MSI_TARGET_CPU_MASK);
- writel(address.lo_address.value,
+ status = msi_ops->setup(dev, vector,
+ &address_hi,
+ &address_lo,
+ &data);
+ if (status < 0)
+ break;
+
+ writel(address_lo,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_LOWER_ADDR_OFFSET);
- writel(address.hi_address,
+ writel(address_hi,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_UPPER_ADDR_OFFSET);
- writel(*(u32*)&data,
+ writel(data,
base + j * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_DATA_OFFSET);
attach_msi_entry(entry, vector);
@@ -865,6 +913,7 @@ static int msix_capability_init(struct pci_dev *dev,
**/
int pci_enable_msi(struct pci_dev* dev)
{
+ struct pci_bus *bus;
int pos, temp, status = -EINVAL;
u16 control;
@@ -874,8 +923,9 @@ int pci_enable_msi(struct pci_dev* dev)
if (dev->no_msi)
return status;
- if (dev->bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
- return -EINVAL;
+ for (bus = dev->bus; bus; bus = bus->parent)
+ if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
+ return -EINVAL;
temp = dev->irq;
@@ -887,23 +937,23 @@ int pci_enable_msi(struct pci_dev* dev)
if (!pos)
return -EINVAL;
- pci_read_config_word(dev, msi_control_reg(pos), &control);
- if (control & PCI_MSI_FLAGS_ENABLE)
- return 0; /* Already in MSI mode */
-
if (!msi_lookup_vector(dev, PCI_CAP_ID_MSI)) {
/* Lookup Sucess */
unsigned long flags;
+ pci_read_config_word(dev, msi_control_reg(pos), &control);
+ if (control & PCI_MSI_FLAGS_ENABLE)
+ return 0; /* Already in MSI mode */
spin_lock_irqsave(&msi_lock, flags);
if (!vector_irq[dev->irq]) {
msi_desc[dev->irq]->msi_attrib.state = 0;
vector_irq[dev->irq] = -1;
nr_released_vectors--;
spin_unlock_irqrestore(&msi_lock, flags);
- msi_register_init(dev, msi_desc[dev->irq]);
- enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
- return 0;
+ status = msi_register_init(dev, msi_desc[dev->irq]);
+ if (status == 0)
+ enable_msi_mode(dev, pos, PCI_CAP_ID_MSI);
+ return status;
}
spin_unlock_irqrestore(&msi_lock, flags);
dev->irq = temp;
@@ -980,6 +1030,8 @@ static int msi_free_vector(struct pci_dev* dev, int vector, int reassign)
void __iomem *base;
unsigned long flags;
+ msi_ops->teardown(vector);
+
spin_lock_irqsave(&msi_lock, flags);
entry = msi_desc[vector];
if (!entry || entry->dev != dev) {
@@ -1008,33 +1060,8 @@ static int msi_free_vector(struct pci_dev* dev, int vector, int reassign)
entry_nr * PCI_MSIX_ENTRY_SIZE +
PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET);
- if (head == vector) {
- /*
- * Detect last MSI-X vector to be released.
- * Release the MSI-X memory-mapped table.
- */
-#if 0
- int pos, nr_entries;
- unsigned long phys_addr;
- u32 table_offset;
- u16 control;
- u8 bir;
-
- pos = pci_find_capability(dev, PCI_CAP_ID_MSIX);
- pci_read_config_word(dev, msi_control_reg(pos),
- &control);
- nr_entries = multi_msix_capable(control);
- pci_read_config_dword(dev, msix_table_offset_reg(pos),
- &table_offset);
- bir = (u8)(table_offset & PCI_MSIX_FLAGS_BIRMASK);
- table_offset &= ~PCI_MSIX_FLAGS_BIRMASK;
- phys_addr = pci_resource_start(dev, bir) + table_offset;
-/*
- * FIXME! and what did you want to do with phys_addr?
- */
-#endif
+ if (head == vector)
iounmap(base);
- }
}
return 0;
@@ -1108,6 +1135,7 @@ static int reroute_msix_table(int head, struct msix_entry *entries, int *nvec)
**/
int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec)
{
+ struct pci_bus *bus;
int status, pos, nr_entries, free_vectors;
int i, j, temp;
u16 control;
@@ -1116,6 +1144,13 @@ int pci_enable_msix(struct pci_dev* dev, struct msix_entry *entries, int nvec)
if (!pci_msi_enable || !dev || !entries)
return -EINVAL;
+ if (dev->no_msi)
+ return -EINVAL;
+
+ for (bus = dev->bus; bus; bus = bus->parent)
+ if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
+ return -EINVAL;
+
status = msi_init();
if (status < 0)
return status;
@@ -1300,24 +1335,6 @@ void msi_remove_pci_irq_vectors(struct pci_dev* dev)
}
msi_free_vector(dev, vector, 0);
if (warning) {
- /* Force to release the MSI-X memory-mapped table */
-#if 0
- unsigned long phys_addr;
- u32 table_offset;
- u16 control;
- u8 bir;
-
- pci_read_config_word(dev, msi_control_reg(pos),
- &control);
- pci_read_config_dword(dev, msix_table_offset_reg(pos),
- &table_offset);
- bir = (u8)(table_offset & PCI_MSIX_FLAGS_BIRMASK);
- table_offset &= ~PCI_MSIX_FLAGS_BIRMASK;
- phys_addr = pci_resource_start(dev, bir) + table_offset;
-/*
- * FIXME! and what did you want to do with phys_addr?
- */
-#endif
iounmap(base);
printk(KERN_WARNING "PCI: %s: msi_remove_pci_irq_vectors() "
"called without free_irq() on all MSI-X vectors\n",
diff --git a/drivers/pci/msi.h b/drivers/pci/msi.h
index 4ac52d441e4..56951c39d3a 100644
--- a/drivers/pci/msi.h
+++ b/drivers/pci/msi.h
@@ -6,6 +6,68 @@
#ifndef MSI_H
#define MSI_H
+/*
+ * MSI operation vector. Used by the msi core code (drivers/pci/msi.c)
+ * to abstract platform-specific tasks relating to MSI address generation
+ * and resource management.
+ */
+struct msi_ops {
+ /**
+ * setup - generate an MSI bus address and data for a given vector
+ * @pdev: PCI device context (in)
+ * @vector: vector allocated by the msi core (in)
+ * @addr_hi: upper 32 bits of PCI bus MSI address (out)
+ * @addr_lo: lower 32 bits of PCI bus MSI address (out)
+ * @data: MSI data payload (out)
+ *
+ * Description: The setup op is used to generate a PCI bus addres and
+ * data which the msi core will program into the card MSI capability
+ * registers. The setup routine is responsible for picking an initial
+ * cpu to target the MSI at. The setup routine is responsible for
+ * examining pdev to determine the MSI capabilities of the card and
+ * generating a suitable address/data. The setup routine is
+ * responsible for allocating and tracking any system resources it
+ * needs to route the MSI to the cpu it picks, and for associating
+ * those resources with the passed in vector.
+ *
+ * Returns 0 if the MSI address/data was successfully setup.
+ **/
+
+ int (*setup) (struct pci_dev *pdev, unsigned int vector,
+ u32 *addr_hi, u32 *addr_lo, u32 *data);
+
+ /**
+ * teardown - release resources allocated by setup
+ * @vector: vector context for resources (in)
+ *
+ * Description: The teardown op is used to release any resources
+ * that were allocated in the setup routine associated with the passed
+ * in vector.
+ **/
+
+ void (*teardown) (unsigned int vector);
+
+ /**
+ * target - retarget an MSI at a different cpu
+ * @vector: vector context for resources (in)
+ * @cpu: new cpu to direct vector at (in)
+ * @addr_hi: new value of PCI bus upper 32 bits (in/out)
+ * @addr_lo: new value of PCI bus lower 32 bits (in/out)
+ *
+ * Description: The target op is used to redirect an MSI vector
+ * at a different cpu. addr_hi/addr_lo coming in are the existing
+ * values that the MSI core has programmed into the card. The
+ * target code is responsible for freeing any resources (if any)
+ * associated with the old address, and generating a new PCI bus
+ * addr_hi/addr_lo that will redirect the vector at the indicated cpu.
+ **/
+
+ void (*target) (unsigned int vector, unsigned int cpu,
+ u32 *addr_hi, u32 *addr_lo);
+};
+
+extern int msi_register(struct msi_ops *ops);
+
#include <asm/msi.h>
/*
@@ -63,67 +125,6 @@ extern int pci_vector_resources(int last, int nr_released);
#define msix_mask(address) (address | PCI_MSIX_FLAGS_BITMASK)
#define msix_is_pending(address) (address & PCI_MSIX_FLAGS_PENDMASK)
-/*
- * MSI Defined Data Structures
- */
-#define MSI_ADDRESS_HEADER 0xfee
-#define MSI_ADDRESS_HEADER_SHIFT 12
-#define MSI_ADDRESS_HEADER_MASK 0xfff000
-#define MSI_ADDRESS_DEST_ID_MASK 0xfff0000f
-#define MSI_TARGET_CPU_MASK 0xff
-#define MSI_DELIVERY_MODE 0
-#define MSI_LEVEL_MODE 1 /* Edge always assert */
-#define MSI_TRIGGER_MODE 0 /* MSI is edge sensitive */
-#define MSI_PHYSICAL_MODE 0
-#define MSI_LOGICAL_MODE 1
-#define MSI_REDIRECTION_HINT_MODE 0
-
-struct msg_data {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u32 vector : 8;
- __u32 delivery_mode : 3; /* 000b: FIXED | 001b: lowest prior */
- __u32 reserved_1 : 3;
- __u32 level : 1; /* 0: deassert | 1: assert */
- __u32 trigger : 1; /* 0: edge | 1: level */
- __u32 reserved_2 : 16;
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u32 reserved_2 : 16;
- __u32 trigger : 1; /* 0: edge | 1: level */
- __u32 level : 1; /* 0: deassert | 1: assert */
- __u32 reserved_1 : 3;
- __u32 delivery_mode : 3; /* 000b: FIXED | 001b: lowest prior */
- __u32 vector : 8;
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
-} __attribute__ ((packed));
-
-struct msg_address {
- union {
- struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
- __u32 reserved_1 : 2;
- __u32 dest_mode : 1; /*0:physic | 1:logic */
- __u32 redirection_hint: 1; /*0: dedicated CPU
- 1: lowest priority */
- __u32 reserved_2 : 4;
- __u32 dest_id : 24; /* Destination ID */
-#elif defined(__BIG_ENDIAN_BITFIELD)
- __u32 dest_id : 24; /* Destination ID */
- __u32 reserved_2 : 4;
- __u32 redirection_hint: 1; /*0: dedicated CPU
- 1: lowest priority */
- __u32 dest_mode : 1; /*0:physic | 1:logic */
- __u32 reserved_1 : 2;
-#else
-#error "Bitfield endianness not defined! Check your byteorder.h"
-#endif
- }u;
- __u32 value;
- }lo_address;
- __u32 hi_address;
-} __attribute__ ((packed));
-
struct msi_desc {
struct {
__u8 type : 5; /* {0: unused, 5h:MSI, 11h:MSI-X} */
@@ -132,7 +133,7 @@ struct msi_desc {
__u8 reserved: 1; /* reserved */
__u8 entry_nr; /* specific enabled entry */
__u8 default_vector; /* default pre-assigned vector */
- __u8 current_cpu; /* current destination cpu */
+ __u8 unused; /* formerly unused destination cpu*/
}msi_attrib;
struct {
@@ -142,6 +143,14 @@ struct msi_desc {
void __iomem *mask_base;
struct pci_dev *dev;
+
+#ifdef CONFIG_PM
+ /* PM save area for MSIX address/data */
+
+ u32 address_hi_save;
+ u32 address_lo_save;
+ u32 data_save;
+#endif
};
#endif /* MSI_H */
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index c2ecae5ff0c..bb7456c1dba 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -267,7 +267,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
/* ACPI bus type */
-static int pci_acpi_find_device(struct device *dev, acpi_handle *handle)
+static int acpi_pci_find_device(struct device *dev, acpi_handle *handle)
{
struct pci_dev * pci_dev;
acpi_integer addr;
@@ -281,7 +281,7 @@ static int pci_acpi_find_device(struct device *dev, acpi_handle *handle)
return 0;
}
-static int pci_acpi_find_root_bridge(struct device *dev, acpi_handle *handle)
+static int acpi_pci_find_root_bridge(struct device *dev, acpi_handle *handle)
{
int num;
unsigned int seg, bus;
@@ -299,21 +299,21 @@ static int pci_acpi_find_root_bridge(struct device *dev, acpi_handle *handle)
return 0;
}
-static struct acpi_bus_type pci_acpi_bus = {
+static struct acpi_bus_type acpi_pci_bus = {
.bus = &pci_bus_type,
- .find_device = pci_acpi_find_device,
- .find_bridge = pci_acpi_find_root_bridge,
+ .find_device = acpi_pci_find_device,
+ .find_bridge = acpi_pci_find_root_bridge,
};
-static int __init pci_acpi_init(void)
+static int __init acpi_pci_init(void)
{
int ret;
- ret = register_acpi_bus_type(&pci_acpi_bus);
+ ret = register_acpi_bus_type(&acpi_pci_bus);
if (ret)
return 0;
platform_pci_choose_state = acpi_pci_choose_state;
platform_pci_set_power_state = acpi_pci_set_power_state;
return 0;
}
-arch_initcall(pci_acpi_init);
+arch_initcall(acpi_pci_init);
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 56ac2bc003c..bc405c035ce 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -43,6 +43,29 @@ pci_config_attr(subsystem_vendor, "0x%04x\n");
pci_config_attr(subsystem_device, "0x%04x\n");
pci_config_attr(class, "0x%06x\n");
pci_config_attr(irq, "%u\n");
+pci_config_attr(is_enabled, "%u\n");
+
+static ssize_t broken_parity_status_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ return sprintf (buf, "%u\n", pdev->broken_parity_status);
+}
+
+static ssize_t broken_parity_status_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ ssize_t consumed = -EINVAL;
+
+ if ((count > 0) && (*buf == '0' || *buf == '1')) {
+ pdev->broken_parity_status = *buf == '1' ? 1 : 0;
+ consumed = count;
+ }
+ return consumed;
+}
static ssize_t local_cpus_show(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -90,6 +113,25 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
(u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
(u8)(pci_dev->class));
}
+static ssize_t
+is_enabled_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+
+ /* this can crash the machine when done on the "wrong" device */
+ if (!capable(CAP_SYS_ADMIN))
+ return count;
+
+ if (*buf == '0')
+ pci_disable_device(pdev);
+
+ if (*buf == '1')
+ pci_enable_device(pdev);
+
+ return count;
+}
+
struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(resource),
@@ -101,6 +143,9 @@ struct device_attribute pci_dev_attrs[] = {
__ATTR_RO(irq),
__ATTR_RO(local_cpus),
__ATTR_RO(modalias),
+ __ATTR(enable, 0600, is_enabled_show, is_enabled_store),
+ __ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
+ broken_parity_status_show,broken_parity_status_store),
__ATTR_NULL,
};
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index fde41cc1473..d408a3c3042 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -517,7 +517,12 @@ pci_enable_device_bars(struct pci_dev *dev, int bars)
int
pci_enable_device(struct pci_dev *dev)
{
- int err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
+ int err;
+
+ if (dev->is_enabled)
+ return 0;
+
+ err = pci_enable_device_bars(dev, (1 << PCI_NUM_RESOURCES) - 1);
if (err)
return err;
pci_fixup_device(pci_fixup_enable, dev);
@@ -546,7 +551,14 @@ void
pci_disable_device(struct pci_dev *dev)
{
u16 pci_command;
-
+
+ if (dev->msi_enabled)
+ disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
+ PCI_CAP_ID_MSI);
+ if (dev->msix_enabled)
+ disable_msi_mode(dev, pci_find_capability(dev, PCI_CAP_ID_MSI),
+ PCI_CAP_ID_MSIX);
+
pci_read_config_word(dev, PCI_COMMAND, &pci_command);
if (pci_command & PCI_COMMAND_MASTER) {
pci_command &= ~PCI_COMMAND_MASTER;
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 30630cbe2fe..29bdeca031a 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -40,7 +40,7 @@ extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int
extern void pci_remove_legacy_files(struct pci_bus *bus);
/* Lock for read/write access to pci device and bus lists */
-extern spinlock_t pci_bus_lock;
+extern struct rw_semaphore pci_bus_sem;
#ifdef CONFIG_X86_IO_APIC
extern int pci_msi_quirk;
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a10ed9dab2c..f89dbc3738b 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -180,25 +180,31 @@ static void pci_read_bases(struct pci_dev *dev, unsigned int howmany, int rom)
res->flags |= pci_calc_resource_flags(l);
if ((l & (PCI_BASE_ADDRESS_SPACE | PCI_BASE_ADDRESS_MEM_TYPE_MASK))
== (PCI_BASE_ADDRESS_SPACE_MEMORY | PCI_BASE_ADDRESS_MEM_TYPE_64)) {
- pci_read_config_dword(dev, reg+4, &l);
+ u32 szhi, lhi;
+ pci_read_config_dword(dev, reg+4, &lhi);
+ pci_write_config_dword(dev, reg+4, ~0);
+ pci_read_config_dword(dev, reg+4, &szhi);
+ pci_write_config_dword(dev, reg+4, lhi);
+ szhi = pci_size(lhi, szhi, 0xffffffff);
next++;
#if BITS_PER_LONG == 64
- res->start |= ((unsigned long) l) << 32;
+ res->start |= ((unsigned long) lhi) << 32;
res->end = res->start + sz;
- pci_write_config_dword(dev, reg+4, ~0);
- pci_read_config_dword(dev, reg+4, &sz);
- pci_write_config_dword(dev, reg+4, l);
- sz = pci_size(l, sz, 0xffffffff);
- if (sz) {
+ if (szhi) {
/* This BAR needs > 4GB? Wow. */
- res->end |= (unsigned long)sz<<32;
+ res->end |= (unsigned long)szhi<<32;
}
#else
- if (l) {
- printk(KERN_ERR "PCI: Unable to handle 64-bit address for device %s\n", pci_name(dev));
+ if (szhi) {
+ printk(KERN_ERR "PCI: Unable to handle 64-bit BAR for device %s\n", pci_name(dev));
res->start = 0;
res->flags = 0;
- continue;
+ } else if (lhi) {
+ /* 64-bit wide address, treat as disabled */
+ pci_write_config_dword(dev, reg, l & ~(u32)PCI_BASE_ADDRESS_MEM_MASK);
+ pci_write_config_dword(dev, reg+4, 0);
+ res->start = 0;
+ res->end = sz;
}
#endif
}
@@ -377,9 +383,9 @@ struct pci_bus * __devinit pci_add_new_bus(struct pci_bus *parent, struct pci_de
child = pci_alloc_child_bus(parent, dev, busnr);
if (child) {
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_add_tail(&child->node, &parent->children);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
}
return child;
}
@@ -838,9 +844,9 @@ void __devinit pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
* and the bus list for fixup functions, etc.
*/
INIT_LIST_HEAD(&dev->global_list);
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_add_tail(&dev->bus_list, &bus->devices);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
}
struct pci_dev * __devinit
@@ -975,9 +981,10 @@ struct pci_bus * __devinit pci_create_bus(struct device *parent,
pr_debug("PCI: Bus %04x:%02x already known\n", pci_domain_nr(b), bus);
goto err_out;
}
- spin_lock(&pci_bus_lock);
+
+ down_write(&pci_bus_sem);
list_add_tail(&b->node, &pci_root_buses);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
memset(dev, 0, sizeof(*dev));
dev->parent = parent;
@@ -1017,9 +1024,9 @@ class_dev_create_file_err:
class_dev_reg_err:
device_unregister(dev);
dev_reg_err:
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_del(&b->node);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
err_out:
kfree(dev);
kfree(b);
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index d378478612f..4364d793f73 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -24,6 +24,17 @@
#include <linux/acpi.h>
#include "pci.h"
+/* The Mellanox Tavor device gives false positive parity errors
+ * Mark this device with a broken_parity_status, to allow
+ * PCI scanning code to "skip" this now blacklisted device.
+ */
+static void __devinit quirk_mellanox_tavor(struct pci_dev *dev)
+{
+ dev->broken_parity_status = 1; /* This device gives false positives */
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
+
/* Deal with broken BIOS'es that neglect to enable passive release,
which can cause problems in combination with the 82441FX/PPro MTRRs */
static void __devinit quirk_passive_release(struct pci_dev *dev)
@@ -878,27 +889,30 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82375, quirk_e
* when a PCI-Soundcard is added. The BIOS only gives Options
* "Disabled" and "AUTO". This Quirk Sets the corresponding
* Register-Value to enable the Soundcard.
+ *
+ * FIXME: Presently this quirk will run on anything that has an 8237
+ * which isn't correct, we need to check DMI tables or something in
+ * order to make sure it only runs on the MSI-K8T-Neo2Fir. Because it
+ * runs everywhere at present we suppress the printk output in most
+ * irrelevant cases.
*/
static void __init k8t_sound_hostbridge(struct pci_dev *dev)
{
unsigned char val;
- printk(KERN_INFO "PCI: Quirk-MSI-K8T Soundcard On\n");
pci_read_config_byte(dev, 0x50, &val);
if (val == 0x88 || val == 0xc8) {
+ /* Assume it's probably a MSI-K8T-Neo2Fir */
+ printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, attempting to turn soundcard ON\n");
pci_write_config_byte(dev, 0x50, val & (~0x40));
/* Verify the Change for Status output */
pci_read_config_byte(dev, 0x50, &val);
if (val & 0x40)
- printk(KERN_INFO "PCI: MSI-K8T soundcard still off\n");
+ printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard still off\n");
else
- printk(KERN_INFO "PCI: MSI-K8T soundcard on\n");
- } else {
- printk(KERN_INFO "PCI: Unexpected Value in PCI-Register: "
- "no Change!\n");
+ printk(KERN_INFO "PCI: MSI-K8T-Neo2Fir, soundcard on\n");
}
-
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, k8t_sound_hostbridge);
@@ -1485,6 +1499,25 @@ static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1460, quirk_p64h2_1k_io);
+/* Under some circumstances, AER is not linked with extended capabilities.
+ * Force it to be linked by setting the corresponding control bit in the
+ * config space.
+ */
+static void __devinit quirk_nvidia_ck804_pcie_aer_ext_cap(struct pci_dev *dev)
+{
+ uint8_t b;
+ if (pci_read_config_byte(dev, 0xf41, &b) == 0) {
+ if (!(b & 0x20)) {
+ pci_write_config_byte(dev, 0xf41, b | 0x20);
+ printk(KERN_INFO
+ "PCI: Linking AER extended capability on %s\n",
+ pci_name(dev));
+ }
+ }
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
+ quirk_nvidia_ck804_pcie_aer_ext_cap);
+
EXPORT_SYMBOL(pcie_mch_quirk);
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pci_fixup_device);
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 1a6bf9de166..99ffbd478b2 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -22,18 +22,18 @@ static void pci_destroy_dev(struct pci_dev *dev)
pci_proc_detach_device(dev);
pci_remove_sysfs_dev_files(dev);
device_unregister(&dev->dev);
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_del(&dev->global_list);
dev->global_list.next = dev->global_list.prev = NULL;
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
}
/* Remove the device from the device lists, and prevent any further
* list accesses from this device */
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_del(&dev->bus_list);
dev->bus_list.next = dev->bus_list.prev = NULL;
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
pci_free_resources(dev);
pci_dev_put(dev);
@@ -62,9 +62,9 @@ void pci_remove_bus(struct pci_bus *pci_bus)
{
pci_proc_detach_bus(pci_bus);
- spin_lock(&pci_bus_lock);
+ down_write(&pci_bus_sem);
list_del(&pci_bus->node);
- spin_unlock(&pci_bus_lock);
+ up_write(&pci_bus_sem);
pci_remove_legacy_files(pci_bus);
class_device_remove_file(&pci_bus->class_dev,
&class_device_attr_cpuaffinity);
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index ce7dd6e7be6..622b3f8ba82 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -13,7 +13,7 @@
#include <linux/interrupt.h>
#include "pci.h"
-DEFINE_SPINLOCK(pci_bus_lock);
+DECLARE_RWSEM(pci_bus_sem);
static struct pci_bus * __devinit
pci_do_find_bus(struct pci_bus* bus, unsigned char busnr)
@@ -72,11 +72,11 @@ pci_find_next_bus(const struct pci_bus *from)
struct pci_bus *b = NULL;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
n = from ? from->node.next : pci_root_buses.next;
if (n != &pci_root_buses)
b = pci_bus_b(n);
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
return b;
}
@@ -124,7 +124,7 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
struct pci_dev *dev;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
list_for_each(tmp, &bus->devices) {
dev = pci_dev_b(tmp);
@@ -135,7 +135,7 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
dev = NULL;
out:
pci_dev_get(dev);
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
return dev;
}
@@ -167,7 +167,7 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
struct pci_dev *dev;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@@ -181,7 +181,7 @@ static struct pci_dev * pci_find_subsys(unsigned int vendor,
}
dev = NULL;
exit:
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
return dev;
}
@@ -232,7 +232,7 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
struct pci_dev *dev;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@@ -247,7 +247,7 @@ pci_get_subsys(unsigned int vendor, unsigned int device,
dev = NULL;
exit:
dev = pci_dev_get(dev);
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
pci_dev_put(from);
return dev;
}
@@ -292,7 +292,7 @@ pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct p
struct pci_dev *dev;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
n = from ? from->global_list.prev : pci_devices.prev;
while (n && (n != &pci_devices)) {
@@ -304,7 +304,7 @@ pci_find_device_reverse(unsigned int vendor, unsigned int device, const struct p
}
dev = NULL;
exit:
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
return dev;
}
@@ -328,7 +328,7 @@ struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
struct pci_dev *dev;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
n = from ? from->global_list.next : pci_devices.next;
while (n && (n != &pci_devices)) {
@@ -340,7 +340,7 @@ struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
dev = NULL;
exit:
dev = pci_dev_get(dev);
- spin_unlock(&pci_bus_lock);
+ up_read(&pci_bus_sem);
pci_dev_put(from);
return dev;
}
@@ -362,7 +362,7 @@ int pci_dev_present(const struct pci_device_id *ids)
int found = 0;
WARN_ON(in_interrupt());
- spin_lock(&pci_bus_lock);
+ down_read(&pci_bus_sem);
while (ids->vendor || ids->subvendor || ids->class_mask) {
list_for_each_entry(dev, &pci_devices, global_list) {
if (pci_match_one_device(ids, dev)) {
@@ -372,8 +372,8 @@ int pci_dev_present(const struct pci_device_id *ids)
}
ids++;
}
-exit:
- spin_unlock(&pci_bus_lock);
+exit:
+ up_read(&pci_bus_sem);
return found;
}
EXPORT_SYMBOL(pci_dev_present);
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 28ce3a7ee43..35086e80faa 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -55,9 +55,10 @@ pbus_assign_resources_sorted(struct pci_bus *bus)
list_for_each_entry(dev, &bus->devices, bus_list) {
u16 class = dev->class >> 8;
- /* Don't touch classless devices and host bridges. */
+ /* Don't touch classless devices or host bridges or ioapics. */
if (class == PCI_CLASS_NOT_DEFINED ||
- class == PCI_CLASS_BRIDGE_HOST)
+ class == PCI_CLASS_BRIDGE_HOST ||
+ class == PCI_CLASS_SYSTEM_PIC)
continue;
pdev_sort_resources(dev, &head);
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index ea9277b7f89..577f4b55c46 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -155,6 +155,46 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
return ret;
}
+#ifdef CONFIG_EMBEDDED
+int pci_assign_resource_fixed(struct pci_dev *dev, int resno)
+{
+ struct pci_bus *bus = dev->bus;
+ struct resource *res = dev->resource + resno;
+ unsigned int type_mask;
+ int i, ret = -EBUSY;
+
+ type_mask = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH;
+
+ for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
+ struct resource *r = bus->resource[i];
+ if (!r)
+ continue;
+
+ /* type_mask must match */
+ if ((res->flags ^ r->flags) & type_mask)
+ continue;
+
+ ret = request_resource(r, res);
+
+ if (ret == 0)
+ break;
+ }
+
+ if (ret) {
+ printk(KERN_ERR "PCI: Failed to allocate %s resource "
+ "#%d:%llx@%llx for %s\n",
+ res->flags & IORESOURCE_IO ? "I/O" : "mem",
+ resno, (unsigned long long)(res->end - res->start + 1),
+ (unsigned long long)res->start, pci_name(dev));
+ } else if (resno < PCI_BRIDGE_RESOURCES) {
+ pci_update_resource(dev, res, resno);
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(pci_assign_resource_fixed);
+#endif
+
/* Sort resources by alignment */
void __devinit
pdev_sort_resources(struct pci_dev *dev, struct resource_list *head)
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 77bb2351500..680f6063954 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -397,30 +397,6 @@
#include "ql1280_fw.h"
#include "ql1040_fw.h"
-
-/*
- * Missing PCI ID's
- */
-#ifndef PCI_DEVICE_ID_QLOGIC_ISP1080
-#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
-#endif
-#ifndef PCI_DEVICE_ID_QLOGIC_ISP1240
-#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
-#endif
-#ifndef PCI_DEVICE_ID_QLOGIC_ISP1280
-#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
-#endif
-#ifndef PCI_DEVICE_ID_QLOGIC_ISP10160
-#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
-#endif
-#ifndef PCI_DEVICE_ID_QLOGIC_ISP12160
-#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
-#endif
-
-#ifndef PCI_VENDOR_ID_AMI
-#define PCI_VENDOR_ID_AMI 0x101e
-#endif
-
#ifndef BITS_PER_LONG
#error "BITS_PER_LONG not defined!"
#endif
diff --git a/drivers/scsi/sata_vsc.c b/drivers/scsi/sata_vsc.c
index 8a29ce340b4..27d658704cf 100644
--- a/drivers/scsi/sata_vsc.c
+++ b/drivers/scsi/sata_vsc.c
@@ -433,13 +433,14 @@ err_out:
/*
- * 0x1725/0x7174 is the Vitesse VSC-7174
- * 0x8086/0x3200 is the Intel 31244, which is supposed to be identical
- * compatibility is untested as of yet
+ * Intel 31244 is supposed to be identical.
+ * Compatibility is untested as of yet.
*/
static const struct pci_device_id vsc_sata_pci_tbl[] = {
- { 0x1725, 0x7174, PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
- { 0x8086, 0x3200, PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
+ { PCI_VENDOR_ID_VITESSE, PCI_DEVICE_ID_VITESSE_VSC7174,
+ PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_GD31244,
+ PCI_ANY_ID, PCI_ANY_ID, 0x10600, 0xFFFFFF, 0 },
{ }
};
diff --git a/include/asm-i386/msi.h b/include/asm-i386/msi.h
index f041d4495fa..b11c4b7dfae 100644
--- a/include/asm-i386/msi.h
+++ b/include/asm-i386/msi.h
@@ -9,7 +9,15 @@
#include <asm/desc.h>
#include <mach_apic.h>
-#define LAST_DEVICE_VECTOR 232
+#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1)
#define MSI_TARGET_CPU_SHIFT 12
+extern struct msi_ops msi_apic_ops;
+
+static inline int msi_arch_init(void)
+{
+ msi_register(&msi_apic_ops);
+ return 0;
+}
+
#endif /* ASM_MSI_H */
diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h
index 0cf119b42f7..ea8b8c407ab 100644
--- a/include/asm-ia64/hw_irq.h
+++ b/include/asm-ia64/hw_irq.h
@@ -47,9 +47,19 @@ typedef u8 ia64_vector;
#define IA64_CMC_VECTOR 0x1f /* corrected machine-check interrupt vector */
/*
* Vectors 0x20-0x2f are reserved for legacy ISA IRQs.
+ * Use vectors 0x30-0xe7 as the default device vector range for ia64.
+ * Platforms may choose to reduce this range in platform_irq_setup, but the
+ * platform range must fall within
+ * [IA64_DEF_FIRST_DEVICE_VECTOR..IA64_DEF_LAST_DEVICE_VECTOR]
*/
-#define IA64_FIRST_DEVICE_VECTOR 0x30
-#define IA64_LAST_DEVICE_VECTOR 0xe7
+extern int ia64_first_device_vector;
+extern int ia64_last_device_vector;
+
+#define IA64_DEF_FIRST_DEVICE_VECTOR 0x30
+#define IA64_DEF_LAST_DEVICE_VECTOR 0xe7
+#define IA64_FIRST_DEVICE_VECTOR ia64_first_device_vector
+#define IA64_LAST_DEVICE_VECTOR ia64_last_device_vector
+#define IA64_MAX_DEVICE_VECTORS (IA64_DEF_LAST_DEVICE_VECTOR - IA64_DEF_FIRST_DEVICE_VECTOR + 1)
#define IA64_NUM_DEVICE_VECTORS (IA64_LAST_DEVICE_VECTOR - IA64_FIRST_DEVICE_VECTOR + 1)
#define IA64_MCA_RENDEZ_VECTOR 0xe8 /* MCA rendez interrupt */
@@ -83,6 +93,7 @@ extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
+extern int reserve_irq_vector (int vector);
extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect);
extern void register_percpu_irq (ia64_vector vec, struct irqaction *action);
diff --git a/include/asm-ia64/machvec.h b/include/asm-ia64/machvec.h
index 0df72a134c8..15b545a897a 100644
--- a/include/asm-ia64/machvec.h
+++ b/include/asm-ia64/machvec.h
@@ -75,6 +75,7 @@ typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
+typedef int ia64_mv_msi_init_t (void);
static inline void
machvec_noop (void)
@@ -153,6 +154,7 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *);
# define platform_readl_relaxed ia64_mv.readl_relaxed
# define platform_readq_relaxed ia64_mv.readq_relaxed
# define platform_migrate ia64_mv.migrate
+# define platform_msi_init ia64_mv.msi_init
# endif
/* __attribute__((__aligned__(16))) is required to make size of the
@@ -202,6 +204,7 @@ struct ia64_machine_vector {
ia64_mv_readl_relaxed_t *readl_relaxed;
ia64_mv_readq_relaxed_t *readq_relaxed;
ia64_mv_migrate_t *migrate;
+ ia64_mv_msi_init_t *msi_init;
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
#define MACHVEC_INIT(name) \
@@ -247,6 +250,7 @@ struct ia64_machine_vector {
platform_readl_relaxed, \
platform_readq_relaxed, \
platform_migrate, \
+ platform_msi_init, \
}
extern struct ia64_machine_vector ia64_mv;
@@ -400,5 +404,8 @@ extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size
#ifndef platform_migrate
# define platform_migrate machvec_noop_task
#endif
+#ifndef platform_msi_init
+# define platform_msi_init ((ia64_mv_msi_init_t*)NULL)
+#endif
#endif /* _ASM_IA64_MACHVEC_H */
diff --git a/include/asm-ia64/machvec_sn2.h b/include/asm-ia64/machvec_sn2.h
index da1d43755af..cf724dc79d8 100644
--- a/include/asm-ia64/machvec_sn2.h
+++ b/include/asm-ia64/machvec_sn2.h
@@ -67,6 +67,8 @@ extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device;
extern ia64_mv_dma_mapping_error sn_dma_mapping_error;
extern ia64_mv_dma_supported sn_dma_supported;
extern ia64_mv_migrate_t sn_migrate;
+extern ia64_mv_msi_init_t sn_msi_init;
+
/*
* This stuff has dual use!
@@ -117,6 +119,11 @@ extern ia64_mv_migrate_t sn_migrate;
#define platform_dma_mapping_error sn_dma_mapping_error
#define platform_dma_supported sn_dma_supported
#define platform_migrate sn_migrate
+#ifdef CONFIG_PCI_MSI
+#define platform_msi_init sn_msi_init
+#else
+#define platform_msi_init ((ia64_mv_msi_init_t*)NULL)
+#endif
#include <asm/sn/io.h>
diff --git a/include/asm-ia64/msi.h b/include/asm-ia64/msi.h
index 97890f7762b..bb92b0dbde2 100644
--- a/include/asm-ia64/msi.h
+++ b/include/asm-ia64/msi.h
@@ -14,4 +14,16 @@ static inline void set_intr_gate (int nr, void *func) {}
#define ack_APIC_irq ia64_eoi
#define MSI_TARGET_CPU_SHIFT 4
+extern struct msi_ops msi_apic_ops;
+
+static inline int msi_arch_init(void)
+{
+ if (platform_msi_init)
+ return platform_msi_init();
+
+ /* default ops for most ia64 platforms */
+ msi_register(&msi_apic_ops);
+ return 0;
+}
+
#endif /* ASM_MSI_H */
diff --git a/include/asm-ia64/sn/intr.h b/include/asm-ia64/sn/intr.h
index 60a51a406ee..12b54ddb06b 100644
--- a/include/asm-ia64/sn/intr.h
+++ b/include/asm-ia64/sn/intr.h
@@ -10,6 +10,7 @@
#define _ASM_IA64_SN_INTR_H
#include <linux/rcupdate.h>
+#include <asm/sn/types.h>
#define SGI_UART_VECTOR 0xe9
@@ -40,6 +41,7 @@ struct sn_irq_info {
int irq_cpuid; /* kernel logical cpuid */
int irq_irq; /* the IRQ number */
int irq_int_bit; /* Bridge interrupt pin */
+ /* <0 means MSI */
u64 irq_xtalkaddr; /* xtalkaddr IRQ is sent to */
int irq_bridge_type;/* pciio asic type (pciio.h) */
void *irq_bridge; /* bridge generating irq */
@@ -53,6 +55,12 @@ struct sn_irq_info {
};
extern void sn_send_IPI_phys(int, long, int, int);
+extern u64 sn_intr_alloc(nasid_t, int,
+ struct sn_irq_info *,
+ int, nasid_t, int);
+extern void sn_intr_free(nasid_t, int, struct sn_irq_info *);
+extern struct sn_irq_info *sn_retarget_vector(struct sn_irq_info *, nasid_t, int);
+extern struct list_head **sn_irq_lh;
#define CPU_VECTOR_TO_IRQ(cpuid,vector) (vector)
diff --git a/include/asm-ia64/sn/pcibr_provider.h b/include/asm-ia64/sn/pcibr_provider.h
index 51260ab70d9..e3b0c3fe5ee 100644
--- a/include/asm-ia64/sn/pcibr_provider.h
+++ b/include/asm-ia64/sn/pcibr_provider.h
@@ -55,6 +55,7 @@
#define PCI32_ATE_V (0x1 << 0)
#define PCI32_ATE_CO (0x1 << 1)
#define PCI32_ATE_PREC (0x1 << 2)
+#define PCI32_ATE_MSI (0x1 << 2)
#define PCI32_ATE_PREF (0x1 << 3)
#define PCI32_ATE_BAR (0x1 << 4)
#define PCI32_ATE_ADDR_SHFT 12
@@ -117,8 +118,8 @@ struct pcibus_info {
extern int pcibr_init_provider(void);
extern void *pcibr_bus_fixup(struct pcibus_bussoft *, struct pci_controller *);
-extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t);
-extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t);
+extern dma_addr_t pcibr_dma_map(struct pci_dev *, unsigned long, size_t, int type);
+extern dma_addr_t pcibr_dma_map_consistent(struct pci_dev *, unsigned long, size_t, int type);
extern void pcibr_dma_unmap(struct pci_dev *, dma_addr_t, int);
/*
diff --git a/include/asm-ia64/sn/pcibus_provider_defs.h b/include/asm-ia64/sn/pcibus_provider_defs.h
index ce3f6c32824..8f7c83d0f6d 100644
--- a/include/asm-ia64/sn/pcibus_provider_defs.h
+++ b/include/asm-ia64/sn/pcibus_provider_defs.h
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1992 - 1997, 2000-2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
#define _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H
@@ -45,13 +45,24 @@ struct pci_controller;
*/
struct sn_pcibus_provider {
- dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t);
- dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t);
+ dma_addr_t (*dma_map)(struct pci_dev *, unsigned long, size_t, int flags);
+ dma_addr_t (*dma_map_consistent)(struct pci_dev *, unsigned long, size_t, int flags);
void (*dma_unmap)(struct pci_dev *, dma_addr_t, int);
void * (*bus_fixup)(struct pcibus_bussoft *, struct pci_controller *);
void (*force_interrupt)(struct sn_irq_info *);
void (*target_interrupt)(struct sn_irq_info *);
};
+/*
+ * Flags used by the map interfaces
+ * bits 3:0 specifies format of passed in address
+ * bit 4 specifies that address is to be used for MSI
+ */
+
+#define SN_DMA_ADDRTYPE(x) ((x) & 0xf)
+#define SN_DMA_ADDR_PHYS 1 /* address is an xio address. */
+#define SN_DMA_ADDR_XIO 2 /* address is phys memory */
+#define SN_DMA_MSI 0x10 /* Bus address is to be used for MSI */
+
extern struct sn_pcibus_provider *sn_pci_provider[];
#endif /* _ASM_IA64_SN_PCI_PCIBUS_PROVIDER_H */
diff --git a/include/asm-ia64/sn/tiocp.h b/include/asm-ia64/sn/tiocp.h
index f47c08ab483..e8ad0bb5b6c 100644
--- a/include/asm-ia64/sn/tiocp.h
+++ b/include/asm-ia64/sn/tiocp.h
@@ -3,13 +3,14 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2003-2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2003-2005 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_TIOCP_H
#define _ASM_IA64_SN_PCI_TIOCP_H
#define TIOCP_HOST_INTR_ADDR 0x003FFFFFFFFFFFFFUL
#define TIOCP_PCI64_CMDTYPE_MEM (0x1ull << 60)
+#define TIOCP_PCI64_CMDTYPE_MSI (0x3ull << 60)
/*****************************************************************************
diff --git a/include/asm-x86_64/msi.h b/include/asm-x86_64/msi.h
index 356e0e82f50..3ad2346624b 100644
--- a/include/asm-x86_64/msi.h
+++ b/include/asm-x86_64/msi.h
@@ -10,7 +10,15 @@
#include <asm/mach_apic.h>
#include <asm/smp.h>
-#define LAST_DEVICE_VECTOR 232
+#define LAST_DEVICE_VECTOR (FIRST_SYSTEM_VECTOR - 1)
#define MSI_TARGET_CPU_SHIFT 12
+extern struct msi_ops msi_apic_ops;
+
+static inline int msi_arch_init(void)
+{
+ msi_register(&msi_apic_ops);
+ return 0;
+}
+
#endif /* ASM_MSI_H */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 6c4bc773f7b..62a8c22f5f6 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -162,6 +162,9 @@ struct pci_dev {
unsigned int is_busmaster:1; /* device is busmaster */
unsigned int no_msi:1; /* device may not use msi */
unsigned int block_ucfg_access:1; /* userspace config space access is blocked */
+ unsigned int broken_parity_status:1; /* Device generates false positive parity */
+ unsigned int msi_enabled:1;
+ unsigned int msix_enabled:1;
u32 saved_config_space[16]; /* config space saved at suspend time */
struct hlist_head saved_cap_space;
@@ -496,6 +499,7 @@ int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
int pci_assign_resource(struct pci_dev *dev, int i);
+int pci_assign_resource_fixed(struct pci_dev *dev, int i);
void pci_restore_bars(struct pci_dev *dev);
/* ROM control related routines */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index bcfe9d4f56a..fd54a9d4c3d 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -848,7 +848,12 @@
#define PCI_VENDOR_ID_QLOGIC 0x1077
+#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
#define PCI_DEVICE_ID_QLOGIC_ISP1020 0x1020
+#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
+#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
+#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
+#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
#define PCI_DEVICE_ID_QLOGIC_ISP2100 0x2100
#define PCI_DEVICE_ID_QLOGIC_ISP2200 0x2200
#define PCI_DEVICE_ID_QLOGIC_ISP2300 0x2300
@@ -1018,6 +1023,7 @@
#define PCI_DEVICE_ID_NVIDIA_NVENET_8 0x0056
#define PCI_DEVICE_ID_NVIDIA_NVENET_9 0x0057
#define PCI_DEVICE_ID_NVIDIA_CK804_AUDIO 0x0059
+#define PCI_DEVICE_ID_NVIDIA_CK804_PCIE 0x005d
#define PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS 0x0064
#define PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE 0x0065
#define PCI_DEVICE_ID_NVIDIA_NVENET_2 0x0066
@@ -1946,6 +1952,7 @@
#define PCI_VENDOR_ID_MELLANOX 0x15b3
#define PCI_DEVICE_ID_MELLANOX_TAVOR 0x5a44
+#define PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE 0x5a46
#define PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT 0x6278
#define PCI_DEVICE_ID_MELLANOX_ARBEL 0x6282
#define PCI_DEVICE_ID_MELLANOX_SINAI_OLD 0x5e8c
@@ -1969,6 +1976,9 @@
#define PCI_VENDOR_ID_NETCELL 0x169c
#define PCI_DEVICE_ID_REVOLUTION 0x0044
+#define PCI_VENDOR_ID_VITESSE 0x1725
+#define PCI_DEVICE_ID_VITESSE_VSC7174 0x7174
+
#define PCI_VENDOR_ID_LINKSYS 0x1737
#define PCI_DEVICE_ID_LINKSYS_EG1064 0x1064
@@ -2148,6 +2158,7 @@
#define PCI_DEVICE_ID_INTEL_ICH8_4 0x2815
#define PCI_DEVICE_ID_INTEL_ICH8_5 0x283e
#define PCI_DEVICE_ID_INTEL_ICH8_6 0x2850
+#define PCI_DEVICE_ID_INTEL_GD31244 0x3200
#define PCI_DEVICE_ID_INTEL_82855PM_HB 0x3340
#define PCI_DEVICE_ID_INTEL_82830_HB 0x3575
#define PCI_DEVICE_ID_INTEL_82830_CGC 0x3577