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authorLinus Torvalds <torvalds@woody.osdl.org>2006-12-01 16:41:27 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-01 16:41:27 -0800
commit72a73a69f6a79266b8b4b18f796907b73a5c01e3 (patch)
tree7684193f3c7f21b0ca14c430b8ead75b2c2025eb /arch
parent4549df891a31b9a05b7d183106c09049b79327be (diff)
parent2b290da053608692ea206507d993b70c39d2cdea (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: (28 commits) PCI: make arch/i386/pci/common.c:pci_bf_sort static PCI: ibmphp_pci.c: fix NULL dereference pciehp: remove unnecessary pci_disable_msi pciehp: remove unnecessary free_irq PCI: rpaphp: change device tree examination PCI: Change memory allocation for acpiphp slots i2c-i801: SMBus patch for Intel ICH9 PCI: irq: irq and pci_ids patch for Intel ICH9 PCI: pci_{enable,disable}_device() nestable ports PCI: switch pci_{enable,disable}_device() to be nestable PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap pci/i386: style cleanups PCI: Block on access to temporarily unavailable pci device pci: fix __pci_register_driver error handling pci: clear osc support flags if no _OSC method acpiphp: fix missing acpiphp_glue_exit() acpiphp: fix use of list_for_each macro Altix: Initial ACPI support - ROM shadowing. Altix: SN ACPI hotplug support. Altix: Add initial ACPI IO support ...
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/pci-dma.c4
-rw-r--r--arch/i386/pci/common.c2
-rw-r--r--arch/i386/pci/fixup.c46
-rw-r--r--arch/i386/pci/i386.c64
-rw-r--r--arch/i386/pci/irq.c6
-rw-r--r--arch/ia64/pci/pci.c75
-rw-r--r--arch/ia64/sn/kernel/Makefile5
-rw-r--r--arch/ia64/sn/kernel/io_acpi_init.c231
-rw-r--r--arch/ia64/sn/kernel/io_common.c613
-rw-r--r--arch/ia64/sn/kernel/io_init.c633
-rw-r--r--arch/ia64/sn/kernel/iomv.c11
-rw-r--r--arch/ia64/sn/kernel/setup.c18
-rw-r--r--arch/ia64/sn/kernel/tiocx.c2
-rw-r--r--arch/ia64/sn/pci/pcibr/pcibr_provider.c17
-rw-r--r--arch/ia64/sn/pci/tioce_provider.c18
-rw-r--r--arch/powerpc/platforms/powermac/pci.c1
-rw-r--r--arch/sparc64/kernel/pci.c9
17 files changed, 1055 insertions, 700 deletions
diff --git a/arch/i386/kernel/pci-dma.c b/arch/i386/kernel/pci-dma.c
index 25fe6685393..5c8c6ef1fc5 100644
--- a/arch/i386/kernel/pci-dma.c
+++ b/arch/i386/kernel/pci-dma.c
@@ -75,7 +75,7 @@ EXPORT_SYMBOL(dma_free_coherent);
int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
dma_addr_t device_addr, size_t size, int flags)
{
- void __iomem *mem_base;
+ void __iomem *mem_base = NULL;
int pages = size >> PAGE_SHIFT;
int bitmap_size = (pages + 31)/32;
@@ -114,6 +114,8 @@ int dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
free1_out:
kfree(dev->dma_mem->bitmap);
out:
+ if (mem_base)
+ iounmap(mem_base);
return 0;
}
EXPORT_SYMBOL(dma_declare_coherent_memory);
diff --git a/arch/i386/pci/common.c b/arch/i386/pci/common.c
index cdfcf971098..53ca6e89798 100644
--- a/arch/i386/pci/common.c
+++ b/arch/i386/pci/common.c
@@ -20,7 +20,7 @@
unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
PCI_PROBE_MMCONF;
-int pci_bf_sort;
+static int pci_bf_sort;
int pci_routeirq;
int pcibios_last_bus = -1;
unsigned long pirq_table_addr;
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index c1949ff38d6..cde1170b01a 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -74,52 +74,6 @@ static void __devinit pci_fixup_ncr53c810(struct pci_dev *d)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, pci_fixup_ncr53c810);
-static void __devinit pci_fixup_ide_bases(struct pci_dev *d)
-{
- int i;
-
- /*
- * PCI IDE controllers use non-standard I/O port decoding, respect it.
- */
- if ((d->class >> 8) != PCI_CLASS_STORAGE_IDE)
- return;
- DBG("PCI: IDE base address fixup for %s\n", pci_name(d));
- for(i=0; i<4; i++) {
- struct resource *r = &d->resource[i];
- if ((r->start & ~0x80) == 0x374) {
- r->start |= 2;
- r->end = r->start;
- }
- }
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_ide_bases);
-
-static void __devinit pci_fixup_ide_trash(struct pci_dev *d)
-{
- int i;
-
- /*
- * Runs the fixup only for the first IDE controller
- * (Shai Fultheim - shai@ftcon.com)
- */
- static int called = 0;
- if (called)
- return;
- called = 1;
-
- /*
- * There exist PCI IDE controllers which have utter garbage
- * in first four base registers. Ignore that.
- */
- DBG("PCI: IDE base address trash cleared for %s\n", pci_name(d));
- for(i=0; i<4; i++)
- d->resource[i].start = d->resource[i].end = d->resource[i].flags = 0;
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_5513, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_10, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_11, pci_fixup_ide_trash);
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801DB_9, pci_fixup_ide_trash);
-
static void __devinit pci_fixup_latency(struct pci_dev *d)
{
/*
diff --git a/arch/i386/pci/i386.c b/arch/i386/pci/i386.c
index 98580292f0d..43005f04442 100644
--- a/arch/i386/pci/i386.c
+++ b/arch/i386/pci/i386.c
@@ -104,16 +104,24 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list)
/* Depth-First Search on bus tree */
list_for_each_entry(bus, bus_list, node) {
if ((dev = bus->self)) {
- for (idx = PCI_BRIDGE_RESOURCES; idx < PCI_NUM_RESOURCES; idx++) {
+ for (idx = PCI_BRIDGE_RESOURCES;
+ idx < PCI_NUM_RESOURCES; idx++) {
r = &dev->resource[idx];
if (!r->flags)
continue;
pr = pci_find_parent_resource(dev, r);
- if (!r->start || !pr || request_resource(pr, r) < 0) {
- printk(KERN_ERR "PCI: Cannot allocate resource region %d of bridge %s\n", idx, pci_name(dev));
- /* Something is wrong with the region.
- Invalidate the resource to prevent child
- resource allocations in this range. */
+ if (!r->start || !pr ||
+ request_resource(pr, r) < 0) {
+ printk(KERN_ERR "PCI: Cannot allocate "
+ "resource region %d "
+ "of bridge %s\n",
+ idx, pci_name(dev));
+ /*
+ * Something is wrong with the region.
+ * Invalidate the resource to prevent
+ * child resource allocations in this
+ * range.
+ */
r->flags = 0;
}
}
@@ -131,7 +139,7 @@ static void __init pcibios_allocate_resources(int pass)
for_each_pci_dev(dev) {
pci_read_config_word(dev, PCI_COMMAND, &command);
- for(idx = 0; idx < 6; idx++) {
+ for (idx = 0; idx < PCI_ROM_RESOURCE; idx++) {
r = &dev->resource[idx];
if (r->parent) /* Already allocated */
continue;
@@ -142,11 +150,15 @@ static void __init pcibios_allocate_resources(int pass)
else
disabled = !(command & PCI_COMMAND_MEMORY);
if (pass == disabled) {
- DBG("PCI: Resource %08lx-%08lx (f=%lx, d=%d, p=%d)\n",
+ DBG("PCI: Resource %08lx-%08lx "
+ "(f=%lx, d=%d, p=%d)\n",
r->start, r->end, r->flags, disabled, pass);
pr = pci_find_parent_resource(dev, r);
if (!pr || request_resource(pr, r) < 0) {
- printk(KERN_ERR "PCI: Cannot allocate resource region %d of device %s\n", idx, pci_name(dev));
+ printk(KERN_ERR "PCI: Cannot allocate "
+ "resource region %d "
+ "of device %s\n",
+ idx, pci_name(dev));
/* We'll assign a new address later */
r->end -= r->start;
r->start = 0;
@@ -156,12 +168,16 @@ static void __init pcibios_allocate_resources(int pass)
if (!pass) {
r = &dev->resource[PCI_ROM_RESOURCE];
if (r->flags & IORESOURCE_ROM_ENABLE) {
- /* Turn the ROM off, leave the resource region, but keep it unregistered. */
+ /* Turn the ROM off, leave the resource region,
+ * but keep it unregistered. */
u32 reg;
- DBG("PCI: Switching off ROM of %s\n", pci_name(dev));
+ DBG("PCI: Switching off ROM of %s\n",
+ pci_name(dev));
r->flags &= ~IORESOURCE_ROM_ENABLE;
- pci_read_config_dword(dev, dev->rom_base_reg, &reg);
- pci_write_config_dword(dev, dev->rom_base_reg, reg & ~PCI_ROM_ADDRESS_ENABLE);
+ pci_read_config_dword(dev,
+ dev->rom_base_reg, &reg);
+ pci_write_config_dword(dev, dev->rom_base_reg,
+ reg & ~PCI_ROM_ADDRESS_ENABLE);
}
}
}
@@ -173,9 +189,11 @@ static int __init pcibios_assign_resources(void)
struct resource *r, *pr;
if (!(pci_probe & PCI_ASSIGN_ROMS)) {
- /* Try to use BIOS settings for ROMs, otherwise let
- pci_assign_unassigned_resources() allocate the new
- addresses. */
+ /*
+ * Try to use BIOS settings for ROMs, otherwise let
+ * pci_assign_unassigned_resources() allocate the new
+ * addresses.
+ */
for_each_pci_dev(dev) {
r = &dev->resource[PCI_ROM_RESOURCE];
if (!r->flags || !r->start)
@@ -215,9 +233,9 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
pci_read_config_word(dev, PCI_COMMAND, &cmd);
old_cmd = cmd;
- for(idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
+ for (idx = 0; idx < PCI_NUM_RESOURCES; idx++) {
/* Only set up the requested stuff */
- if (!(mask & (1<<idx)))
+ if (!(mask & (1 << idx)))
continue;
r = &dev->resource[idx];
@@ -227,7 +245,9 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
(!(r->flags & IORESOURCE_ROM_ENABLE)))
continue;
if (!r->start && r->end) {
- printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
+ printk(KERN_ERR "PCI: Device %s not available "
+ "because of resource collisions\n",
+ pci_name(dev));
return -EINVAL;
}
if (r->flags & IORESOURCE_IO)
@@ -236,7 +256,8 @@ int pcibios_enable_resources(struct pci_dev *dev, int mask)
cmd |= PCI_COMMAND_MEMORY;
}
if (cmd != old_cmd) {
- printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
+ printk("PCI: Enabling device %s (%04x -> %04x)\n",
+ pci_name(dev), old_cmd, cmd);
pci_write_config_word(dev, PCI_COMMAND, cmd);
}
return 0;
@@ -258,7 +279,8 @@ void pcibios_set_master(struct pci_dev *dev)
lat = pcibios_max_latency;
else
return;
- printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n", pci_name(dev), lat);
+ printk(KERN_DEBUG "PCI: Setting latency timer of device %s to %d\n",
+ pci_name(dev), lat);
pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
}
diff --git a/arch/i386/pci/irq.c b/arch/i386/pci/irq.c
index 69163998ade..e65551cd821 100644
--- a/arch/i386/pci/irq.c
+++ b/arch/i386/pci/irq.c
@@ -543,6 +543,12 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
case PCI_DEVICE_ID_INTEL_ICH8_2:
case PCI_DEVICE_ID_INTEL_ICH8_3:
case PCI_DEVICE_ID_INTEL_ICH8_4:
+ case PCI_DEVICE_ID_INTEL_ICH9_0:
+ case PCI_DEVICE_ID_INTEL_ICH9_1:
+ case PCI_DEVICE_ID_INTEL_ICH9_2:
+ case PCI_DEVICE_ID_INTEL_ICH9_3:
+ case PCI_DEVICE_ID_INTEL_ICH9_4:
+ case PCI_DEVICE_ID_INTEL_ICH9_5:
r->name = "PIIX/ICH";
r->get = pirq_piix_get;
r->set = pirq_piix_set;
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index b30be7c48ba..f4edfbf2713 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -469,10 +469,11 @@ pcibios_fixup_resources(struct pci_dev *dev, int start, int limit)
}
}
-static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
+void __devinit pcibios_fixup_device_resources(struct pci_dev *dev)
{
pcibios_fixup_resources(dev, 0, PCI_BRIDGE_RESOURCES);
}
+EXPORT_SYMBOL_GPL(pcibios_fixup_device_resources);
static void __devinit pcibios_fixup_bridge_resources(struct pci_dev *dev)
{
@@ -493,6 +494,7 @@ pcibios_fixup_bus (struct pci_bus *b)
}
list_for_each_entry(dev, &b->devices, bus_list)
pcibios_fixup_device_resources(dev);
+ platform_pci_fixup_bus(b);
return;
}
@@ -738,75 +740,44 @@ int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size)
return ret;
}
+/* It's defined in drivers/pci/pci.c */
+extern u8 pci_cache_line_size;
+
/**
- * pci_cacheline_size - determine cacheline size for PCI devices
- * @dev: void
+ * set_pci_cacheline_size - determine cacheline size for PCI devices
*
* We want to use the line-size of the outer-most cache. We assume
* that this line-size is the same for all CPUs.
*
* Code mostly taken from arch/ia64/kernel/palinfo.c:cache_info().
- *
- * RETURNS: An appropriate -ERRNO error value on eror, or zero for success.
*/
-static unsigned long
-pci_cacheline_size (void)
+static void __init set_pci_cacheline_size(void)
{
u64 levels, unique_caches;
s64 status;
pal_cache_config_info_t cci;
- static u8 cacheline_size;
-
- if (cacheline_size)
- return cacheline_size;
status = ia64_pal_cache_summary(&levels, &unique_caches);
if (status != 0) {
- printk(KERN_ERR "%s: ia64_pal_cache_summary() failed (status=%ld)\n",
- __FUNCTION__, status);
- return SMP_CACHE_BYTES;
+ printk(KERN_ERR "%s: ia64_pal_cache_summary() failed "
+ "(status=%ld)\n", __FUNCTION__, status);
+ return;
}
- status = ia64_pal_cache_config_info(levels - 1, /* cache_type (data_or_unified)= */ 2,
- &cci);
+ status = ia64_pal_cache_config_info(levels - 1,
+ /* cache_type (data_or_unified)= */ 2, &cci);
if (status != 0) {
- printk(KERN_ERR "%s: ia64_pal_cache_config_info() failed (status=%ld)\n",
- __FUNCTION__, status);
- return SMP_CACHE_BYTES;
+ printk(KERN_ERR "%s: ia64_pal_cache_config_info() failed "
+ "(status=%ld)\n", __FUNCTION__, status);
+ return;
}
- cacheline_size = 1 << cci.pcci_line_size;
- return cacheline_size;
+ pci_cache_line_size = (1 << cci.pcci_line_size) / 4;
}
-/**
- * pcibios_prep_mwi - helper function for drivers/pci/pci.c:pci_set_mwi()
- * @dev: the PCI device for which MWI is enabled
- *
- * For ia64, we can get the cacheline sizes from PAL.
- *
- * RETURNS: An appropriate -ERRNO error value on eror, or zero for success.
- */
-int
-pcibios_prep_mwi (struct pci_dev *dev)
-{
- unsigned long desired_linesize, current_linesize;
- int rc = 0;
- u8 pci_linesize;
-
- desired_linesize = pci_cacheline_size();
-
- pci_read_config_byte(dev, PCI_CACHE_LINE_SIZE, &pci_linesize);
- current_linesize = 4 * pci_linesize;
- if (desired_linesize != current_linesize) {
- printk(KERN_WARNING "PCI: slot %s has incorrect PCI cache line size of %lu bytes,",
- pci_name(dev), current_linesize);
- if (current_linesize > desired_linesize) {
- printk(" expected %lu bytes instead\n", desired_linesize);
- rc = -EINVAL;
- } else {
- printk(" correcting to %lu\n", desired_linesize);
- pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, desired_linesize / 4);
- }
- }
- return rc;
+static int __init pcibios_init(void)
+{
+ set_pci_cacheline_size();
+ return 0;
}
+
+subsys_initcall(pcibios_init);
diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile
index 2d78f34dd76..0a59371d347 100644
--- a/arch/ia64/sn/kernel/Makefile
+++ b/arch/ia64/sn/kernel/Makefile
@@ -4,13 +4,14 @@
# License. See the file "COPYING" in the main directory of this archive
# for more details.
#
-# Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All Rights Reserved.
+# Copyright (C) 1999,2001-2006 Silicon Graphics, Inc. All Rights Reserved.
#
CPPFLAGS += -I$(srctree)/arch/ia64/sn/include
obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \
- huberror.o io_init.o iomv.o klconflib.o pio_phys.o \
+ huberror.o io_acpi_init.o io_common.o \
+ io_init.o iomv.o klconflib.o pio_phys.o \
sn2/
obj-$(CONFIG_IA64_GENERIC) += machvec.o
obj-$(CONFIG_SGI_TIOCX) += tiocx.o
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
new file mode 100644
index 00000000000..99d7f278612
--- /dev/null
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -0,0 +1,231 @@
+/*
+ * 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 <asm/sn/types.h>
+#include <asm/sn/addrs.h>
+#include <asm/sn/pcidev.h>
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/sn_sal.h>
+#include "xtalk/hubdev.h"
+#include <linux/acpi.h>
+
+
+/*
+ * The code in this file will only be executed when running with
+ * a PROM that has ACPI IO support. (i.e., SN_ACPI_BASE_SUPPORT() == 1)
+ */
+
+
+/*
+ * This value must match the UUID the PROM uses
+ * (io/acpi/defblk.c) when building a vendor descriptor.
+ */
+struct acpi_vendor_uuid sn_uuid = {
+ .subtype = 0,
+ .data = { 0x2c, 0xc6, 0xa6, 0xfe, 0x9c, 0x44, 0xda, 0x11,
+ 0xa2, 0x7c, 0x08, 0x00, 0x69, 0x13, 0xea, 0x51 },
+};
+
+/*
+ * Perform the early IO init in PROM.
+ */
+static s64
+sal_ioif_init(u64 *result)
+{
+ struct ia64_sal_retval isrv = {0,0,0,0};
+
+ SAL_CALL_NOLOCK(isrv,
+ SN_SAL_IOIF_INIT, 0, 0, 0, 0, 0, 0, 0);
+ *result = isrv.v0;
+ return isrv.status;
+}
+
+/*
+ * sn_hubdev_add - The 'add' function of the acpi_sn_hubdev_driver.
+ * Called for every "SGIHUB" or "SGITIO" device defined
+ * in the ACPI namespace.
+ */
+static int __init
+sn_hubdev_add(struct acpi_device *device)
+{
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ u64 addr;
+ struct hubdev_info *hubdev;
+ struct hubdev_info *hubdev_ptr;
+ int i;
+ u64 nasid;
+ struct acpi_resource *resource;
+ int ret = 0;
+ acpi_status status;
+ struct acpi_resource_vendor_typed *vendor;
+ extern void sn_common_hubdev_init(struct hubdev_info *);
+
+ status = acpi_get_vendor_resource(device->handle, METHOD_NAME__CRS,
+ &sn_uuid, &buffer);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR
+ "sn_hubdev_add: acpi_get_vendor_resource() failed: %d\n",
+ status);
+ return 1;
+ }
+
+ resource = buffer.pointer;
+ vendor = &resource->data.vendor_typed;
+ if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
+ sizeof(struct hubdev_info *)) {
+ printk(KERN_ERR
+ "sn_hubdev_add: Invalid vendor data length: %d\n",
+ vendor->byte_length);
+ ret = 1;
+ goto exit;
+ }
+
+ memcpy(&addr, vendor->byte_data, sizeof(struct hubdev_info *));
+ hubdev_ptr = __va((struct hubdev_info *) addr);
+
+ nasid = hubdev_ptr->hdi_nasid;
+ i = nasid_to_cnodeid(nasid);
+ hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
+ *hubdev = *hubdev_ptr;
+ sn_common_hubdev_init(hubdev);
+
+exit:
+ kfree(buffer.pointer);
+ return ret;
+}
+
+/*
+ * sn_get_bussoft_ptr() - The pcibus_bussoft pointer is found in
+ * the ACPI Vendor resource for this bus.
+ */
+static struct pcibus_bussoft *
+sn_get_bussoft_ptr(struct pci_bus *bus)
+{
+ u64 addr;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ acpi_handle handle;
+ struct pcibus_bussoft *prom_bussoft_ptr;
+ struct acpi_resource *resource;
+ acpi_status status;
+ struct acpi_resource_vendor_typed *vendor;
+
+
+ handle = PCI_CONTROLLER(bus)->acpi_handle;
+ status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
+ &sn_uuid, &buffer);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR "get_acpi_pcibus_ptr: "
+ "get_acpi_bussoft_info() failed: %d\n",
+ status);
+ return NULL;
+ }
+ resource = buffer.pointer;
+ vendor = &resource->data.vendor_typed;
+
+ if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
+ sizeof(struct pcibus_bussoft *)) {
+ printk(KERN_ERR
+ "get_acpi_bussoft_ptr: Invalid vendor data "
+ "length %d\n", vendor->byte_length);
+ kfree(buffer.pointer);
+ return NULL;
+ }
+ memcpy(&addr, vendor->byte_data, sizeof(struct pcibus_bussoft *));
+ prom_bussoft_ptr = __va((struct pcibus_bussoft *) addr);
+ kfree(buffer.pointer);
+
+ return prom_bussoft_ptr;
+}
+
+/*
+ * sn_acpi_bus_fixup
+ */
+void
+sn_acpi_bus_fixup(struct pci_bus *bus)
+{
+ struct pci_dev *pci_dev = NULL;
+ struct pcibus_bussoft *prom_bussoft_ptr;
+ extern void sn_common_bus_fixup(struct pci_bus *,
+ struct pcibus_bussoft *);
+
+ if (!bus->parent) { /* If root bus */
+ prom_bussoft_ptr = sn_get_bussoft_ptr(bus);
+ if (prom_bussoft_ptr == NULL) {
+ printk(KERN_ERR
+ "sn_pci_fixup_bus: 0x%04x:0x%02x Unable to "
+ "obtain prom_bussoft_ptr\n",
+ pci_domain_nr(bus), bus->number);
+ return;
+ }
+ sn_common_bus_fixup(bus, prom_bussoft_ptr);
+ }
+ list_for_each_entry(pci_dev, &bus->devices, bus_list) {
+ sn_pci_fixup_slot(pci_dev);
+ }
+}
+
+/*
+ * sn_acpi_slot_fixup - Perform any SN specific slot fixup.
+ * At present there does not appear to be
+ * any generic way to handle a ROM image
+ * that has been shadowed by the PROM, so
+ * we pass a pointer to it within the
+ * pcidev_info structure.
+ */
+
+void
+sn_acpi_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
+{
+ void __iomem *addr;
+ size_t size;
+
+ if (pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE]) {
+ /*
+ * A valid ROM image exists and has been shadowed by the
+ * PROM. Setup the pci_dev ROM resource to point to
+ * the shadowed copy.
+ */
+ size = dev->resource[PCI_ROM_RESOURCE].end -
+ dev->resource[PCI_ROM_RESOURCE].start;
+ addr =
+ ioremap(pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE],
+ size);
+ dev->resource[PCI_ROM_RESOURCE].start = (unsigned long) addr;
+ dev->resource[PCI_ROM_RESOURCE].end =
+ (unsigned long) addr + size;
+ dev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_BIOS_COPY;
+ }
+}
+
+static struct acpi_driver acpi_sn_hubdev_driver = {
+ .name = "SGI HUBDEV Driver",
+ .ids = "SGIHUB,SGITIO",
+ .ops = {
+ .add = sn_hubdev_add,
+ },
+};
+
+
+/*
+ * sn_io_acpi_init - PROM has ACPI support for IO, defining at a minimum the
+ * nodes and root buses in the DSDT. As a result, bus scanning
+ * will be initiated by the Linux ACPI code.
+ */
+
+void __init
+sn_io_acpi_init(void)
+{
+ u64 result;
+ s64 status;
+
+ acpi_bus_register_driver(&acpi_sn_hubdev_driver);
+ status = sal_ioif_init(&result);
+ if (status || result)
+ panic("sal_ioif_init failed: [%lx] %s\n",
+ status, ia64_sal_strerror(status));
+}
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
new file mode 100644
index 00000000000..d4dd8f4b6b8
--- /dev/null
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -0,0 +1,613 @@
+/*
+ * 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/bootmem.h>
+#include <asm/sn/types.h>
+#include <asm/sn/addrs.h>
+#include <asm/sn/sn_feature_sets.h>
+#include <asm/sn/geo.h>
+#include <asm/sn/io.h>
+#include <asm/sn/l1.h>
+#include <asm/sn/module.h>
+#include <asm/sn/pcibr_provider.h>
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/pcidev.h>
+#include <asm/sn/simulator.h>
+#include <asm/sn/sn_sal.h>
+#include <asm/sn/tioca_provider.h>
+#include <asm/sn/tioce_provider.h>
+#include "xtalk/hubdev.h"
+#include "xtalk/xwidgetdev.h"
+#include <linux/acpi.h>
+#include <asm/sn/sn2/sn_hwperf.h>
+#include <asm/sn/acpi.h>
+
+extern void sn_init_cpei_timer(void);
+extern void register_sn_procfs(void);
+extern void sn_acpi_bus_fixup(struct pci_bus *);
+extern void sn_bus_fixup(struct pci_bus *);
+extern void sn_acpi_slot_fixup(struct pci_dev *, struct pcidev_info *);
+extern void sn_more_slot_fixup(struct pci_dev *, struct pcidev_info *);
+extern void sn_legacy_pci_window_fixup(struct pci_controller *, u64, u64);
+extern void sn_io_acpi_init(void);
+extern void sn_io_init(void);
+
+
+static struct list_head sn_sysdata_list;
+
+/* sysdata list struct */
+struct sysdata_el {
+ struct list_head entry;
+ void *sysdata;
+};
+
+int sn_ioif_inited; /* SN I/O infrastructure initialized? */
+
+struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
+
+/*
+ * Hooks and struct for unsupported pci providers
+ */
+
+static dma_addr_t
+sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
+{
+ return 0;
+}
+
+static void
+sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
+{
+ return;
+}
+
+static void *
+sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
+{
+ return NULL;
+}
+
+static struct sn_pcibus_provider sn_pci_default_provider = {
+ .dma_map = sn_default_pci_map,
+ .dma_map_consistent = sn_default_pci_map,
+ .dma_unmap = sn_default_pci_unmap,
+ .bus_fixup = sn_default_pci_bus_fixup,
+};
+
+/*
+ * Retrieve the DMA Flush List given nasid, widget, and device.
+ * This list is needed to implement the WAR - Flush DMA data on PIO Reads.
+ */
+static inline u64
+sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
+ u64 address)
+{
+ struct ia64_sal_retval ret_stuff;
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+
+ SAL_CALL_NOLOCK(ret_stuff,
+ (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
+ (u64) nasid, (u64) widget_num,
+ (u64) device_num, (u64) address, 0, 0, 0);
+ return ret_stuff.status;
+}
+
+/*
+ * Retrieve the pci device information given the bus and device|function number.
+ */
+static inline u64
+sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
+ u64 sn_irq_info)
+{
+ struct ia64_sal_retval ret_stuff;
+ ret_stuff.status = 0;
+ ret_stuff.v0 = 0;
+
+ SAL_CALL_NOLOCK(ret_stuff,
+ (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
+ (u64) segment, (u64) bus_number, (u64) devfn,
+ (u64) pci_dev,
+ sn_irq_info, 0, 0);
+ return ret_stuff.v0;
+}
+
+/*
+ * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
+ * device.
+ */
+inline struct pcidev_info *
+sn_pcidev_info_get(struct pci_dev *dev)
+{
+ struct pcidev_info *pcidev;
+
+ list_for_each_entry(pcidev,
+ &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) {
+ if (pcidev->pdi_linux_pcidev == dev)
+ return pcidev;
+ }
+ return NULL;
+}
+
+/* Older PROM flush WAR
+ *
+ * 01/16/06 -- This war will be in place until a new official PROM is released.
+ * Additionally note that the struct sn_flush_device_war also has to be
+ * removed from arch/ia64/sn/include/xtalk/hubdev.h
+ */
+static u8 war_implemented = 0;
+
+static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
+ struct sn_flush_device_common *common)
+{
+ struct sn_flush_device_war *war_list;
+ struct sn_flush_device_war *dev_entry;
+ struct ia64_sal_retval isrv = {0,0,0,0};
+
+ if (!war_implemented) {
+ printk(KERN_WARNING "PROM version < 4.50 -- implementing old "
+ "PROM flush WAR\n");
+ war_implemented = 1;
+ }
+
+ war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
+ if (!war_list)
+ BUG();
+
+ SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
+ nasid, widget, __pa(war_list), 0, 0, 0 ,0);
+ if (isrv.status)
+ panic("sn_device_fixup_war failed: %s\n",
+ ia64_sal_strerror(isrv.status));
+
+ dev_entry = war_list + device;
+ memcpy(common,dev_entry, sizeof(*common));
+ kfree(war_list);
+
+ return isrv.status;
+}
+
+/*
+ * sn_common_hubdev_init() - This routine is called to initialize the HUB data
+ * structure for each node in the system.
+ */
+void __init
+sn_common_hubdev_init(struct hubdev_info *hubdev)
+{
+
+ struct sn_flush_device_kernel *sn_flush_device_kernel;
+ struct sn_flush_device_kernel *dev_entry;
+ s64 status;
+ int widget, device, size;
+
+ /* Attach the error interrupt handlers */
+ if (hubdev->hdi_nasid & 1) /* If TIO */
+ ice_error_init(hubdev);
+ else
+ hub_error_init(hubdev);
+
+ for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
+ hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
+
+ if (!hubdev->hdi_flush_nasid_list.widget_p)
+ return;
+
+ size = (HUB_WIDGET_ID_MAX + 1) *
+ sizeof(struct sn_flush_device_kernel *);
+ hubdev->hdi_flush_nasid_list.widget_p =
+ kzalloc(size, GFP_KERNEL);
+ if (!hubdev->hdi_flush_nasid_list.widget_p)
+ BUG();
+
+ for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
+ size = DEV_PER_WIDGET *
+ sizeof(struct sn_flush_device_kernel);
+ sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
+ if (!sn_flush_device_kernel)
+ BUG();
+
+ dev_entry = sn_flush_device_kernel;
+ for (device = 0; device < DEV_PER_WIDGET;
+ device++, dev_entry++) {
+ size = sizeof(struct sn_flush_device_common);
+ dev_entry->common = kzalloc(size, GFP_KERNEL);
+ if (!dev_entry->common)
+ BUG();
+ if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST))
+ status = sal_get_device_dmaflush_list(
+ hubdev->hdi_nasid, widget, device,
+ (u64)(dev_entry->common));
+ else
+ status = sn_device_fixup_war(hubdev->hdi_nasid,
+ widget, device,
+ dev_entry->common);
+ if (status != SALRET_OK)
+ panic("SAL call failed: %s\n",
+ ia64_sal_strerror(status));
+
+ spin_lock_init(&dev_entry->sfdl_flush_lock);
+ }
+
+ if (sn_flush_device_kernel)
+ hubdev->hdi_flush_nasid_list.widget_p[widget] =
+ sn_flush_device_kernel;
+ }
+}
+
+void sn_pci_unfixup_slot(struct pci_dev *dev)
+{
+ struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
+
+ sn_irq_unfixup(dev);
+ pci_dev_put(host_pci_dev);
+ pci_dev_put(dev);
+}
+
+/*
+ * sn_pci_fixup_slot() - This routine sets up a slot's resources consistent
+ * with the Linux PCI abstraction layer. Resources
+ * acquired from our PCI provider include PIO maps
+ * to BAR space and interrupt objects.
+ */
+void sn_pci_fixup_slot(struct pci_dev *dev)
+{
+ int segment = pci_domain_nr(dev->bus);
+ int status = 0;
+ struct pcibus_bussoft *bs;
+ struct pci_bus *host_pci_bus;
+ struct pci_dev *host_pci_dev;
+ struct pcidev_info *pcidev_info;
+ struct sn_irq_info *sn_irq_info;
+ unsigned int bus_no, devfn;
+
+ pci_dev_get(dev); /* for the sysdata pointer */
+ pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
+ if (!pcidev_info)
+ BUG(); /* Cannot afford to run out of memory */
+
+ sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
+ if (!sn_irq_info)
+ BUG(); /* Cannot afford to run out of memory */
+
+ /* Call to retrieve pci device information needed by kernel. */
+ status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
+ dev->devfn,
+ (u64) __pa(pcidev_info),
+ (u64) __pa(sn_irq_info));
+ if (status)
+ BUG(); /* Cannot get platform pci device information */
+
+ /* Add pcidev_info to list in pci_controller.platform_data */
+ list_add_tail(&pcidev_info->pdi_list,
+ &(SN_PLATFORM_DATA(dev->bus)->pcidev_info));
+
+ if (SN_ACPI_BASE_SUPPORT())
+ sn_acpi_slot_fixup(dev, pcidev_info);
+ else
+ sn_more_slot_fixup(dev, pcidev_info);
+ /*
+ * Using the PROMs values for the PCI host bus, get the Linux
+ * PCI host_pci_dev struct and set up host bus linkages
+ */
+
+ bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
+ devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
+ host_pci_bus = pci_find_bus(segment, bus_no);
+ host_pci_dev = pci_get_slot(host_pci_bus, devfn);
+
+ pcidev_info->host_pci_dev = host_pci_dev;
+ pcidev_info->pdi_linux_pcidev = dev;
+ pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
+ bs = SN_PCIBUS_BUSSOFT(dev->bus);
+ pcidev_info->pdi_pcibus_info = bs;
+
+ if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
+ SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
+ } else {
+ SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
+ }
+
+ /* Only set up IRQ stuff if this device has a host bus context */
+ if (bs && sn_irq_info->irq_irq) {
+ pcidev_info->pdi_sn_irq_info = sn_irq_info;
+ dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
+ sn_irq_fixup(dev, sn_irq_info);
+ } else {
+ pcidev_info->pdi_sn_irq_info = NULL;
+ kfree(sn_irq_info);
+ }
+}
+
+/*
+ * sn_common_bus_fixup - Perform platform specific bus fixup.
+ * Execute the ASIC specific fixup routine
+ * for this bus.
+ */
+void
+sn_common_bus_fixup(struct pci_bus *bus,
+ struct pcibus_bussoft *prom_bussoft_ptr)
+{
+ int cnode;
+ struct pci_controller *controller;
+ struct hubdev_info *hubdev_info;
+ int nasid;
+ void *provider_soft;
+ struct sn_pcibus_provider *provider;
+ struct sn_platform_data *sn_platform_data;
+
+ controller = PCI_CONTROLLER(bus);
+ /*
+ * Per-provider fixup. Copies the bus soft structure from prom
+ * to local area and links SN_PCIBUS_BUSSOFT().
+ */
+
+ if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
+ printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d",
+ prom_bussoft_ptr->bs_asic_type);
+ return;
+ }
+
+ if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
+ return; /* no further fixup necessary */
+
+ provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
+ if (provider == NULL)
+ panic("sn_common_bus_fixup: No provider registered for this asic type, %d",
+ prom_bussoft_ptr->bs_asic_type);
+
+ if (provider->bus_fixup)
+ provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr,
+ controller);
+ else
+ provider_soft = NULL;
+
+ /*
+ * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
+ * after this point.
+ */
+ controller->platform_data = kzalloc(sizeof(struct sn_platform_data),
+ GFP_KERNEL);
+ if (controller->platform_data == NULL)
+ BUG();
+ sn_platform_data =
+ (struct sn_platform_data *) controller->platform_data;
+ sn_platform_data->provider_soft = provider_soft;
+ INIT_LIST_HEAD(&((struct sn_platform_data *)
+ controller->platform_data)->pcidev_info);
+ nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
+ cnode = nasid_to_cnodeid(nasid);
+ hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
+ SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
+ &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
+
+ /*
+ * If the node information we obtained during the fixup phase is
+ * invalid then set controller->node to -1 (undetermined)
+ */
+ if (controller->node >= num_online_nodes()) {
+ struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
+
+ printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
+ "L_IO=%lx L_MEM=%lx BASE=%lx\n",
+ b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
+ b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
+ printk(KERN_WARNING "on node %d but only %d nodes online."
+ "Association set to undetermined.\n",
+ controller->node, num_online_nodes());
+ controller->node = -1;
+ }
+}
+
+void sn_bus_store_sysdata(struct pci_dev *dev)
+{
+ struct sysdata_el *element;
+
+ element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
+ if (!element) {
+ dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__);
+ return;
+ }
+ element->sysdata = SN_PCIDEV_INFO(dev);
+ list_add(&element->entry, &sn_sysdata_list);
+}
+
+void sn_bus_free_sysdata(void)
+{
+ struct sysdata_el *element;
+ struct list_head *list, *safe;
+
+ list_for_each_safe(list, safe, &sn_sysdata_list) {
+ element = list_entry(list, struct sysdata_el, entry);
+ list_del(&element->entry);
+ list_del(&(((struct pcidev_info *)
+ (element->sysdata))->pdi_list));
+ kfree(element->sysdata);
+ kfree(element);
+ }
+ return;
+}
+
+/*
+ * hubdev_init_node() - Creates the HUB data structure and link them to it's
+ * own NODE specific data area.
+ */
+void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
+{
+ struct hubdev_info *hubdev_info;
+ int size;
+ pg_data_t *pg;
+
+ size = sizeof(struct hubdev_info);
+
+ if (node >= num_online_nodes()) /* Headless/memless IO nodes */
+ pg = NODE_DATA(0);
+ else
+ pg = NODE_DATA(node);
+
+ hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
+
+ npda->pdinfo = (void *)hubdev_info;
+}
+
+geoid_t
+cnodeid_get_geoid(cnodeid_t cnode)
+{
+ struct hubdev_info *hubdev;
+
+ hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
+ return hubdev->hdi_geoid;
+}
+
+void sn_generate_path(struct pci_bus *pci_bus, char *address)
+{
+ nasid_t nasid;
+ cnodeid_t cnode;
+ geoid_t geoid;
+ moduleid_t moduleid;
+ u16 bricktype;
+
+ nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
+ cnode = nasid_to_cnodeid(nasid);
+ geoid = cnodeid_get_geoid(cnode);
+ moduleid = geo_module(geoid);
+
+ sprintf(address, "module_%c%c%c%c%.2d",
+ '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
+ '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
+ '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
+ MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
+
+ /* Tollhouse requires slot id to be displayed */
+ bricktype = MODULE_GET_BTYPE(moduleid);
+ if ((bricktype == L1_BRICKTYPE_191010) ||
+ (bricktype == L1_BRICKTYPE_1932))
+ sprintf(address, "%s^%d", address, geo_slot(geoid));
+}
+
+/*
+ * sn_pci_fixup_bus() - Perform SN specific setup of software structs
+ * (pcibus_bussoft, pcidev_info) and hardware
+ * registers, for the specified bus and devices under it.
+ */
+void __devinit
+sn_pci_fixup_bus(struct pci_bus *bus)
+{
+
+ if (SN_ACPI_BASE_SUPPORT())
+ sn_acpi_bus_fixup(bus);
+ else
+ sn_bus_fixup(bus);
+}
+
+/*
+ * sn_io_early_init - Perform early IO (and some non-IO) initialization.
+ * In particular, setup the sn_pci_provider[] array.
+ * This needs to be done prior to any bus scanning
+ * (acpi_scan_init()) in the ACPI case, as the SN
+ * bus fixup code will reference the array.
+ */
+static int __init
+sn_io_early_init(void)
+{
+ int i;
+
+ if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
+ return 0;
+
+ /*
+ * prime sn_pci_provider[]. Individial provider init routines will
+ * override their respective default entries.
+ */
+
+ for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
+ sn_pci_provider[i] = &sn_pci_default_provider;
+
+ pcibr_init_provider();
+ tioca_init_provider();
+ tioce_init_provider();
+
+ /*
+ * This is needed to avoid bounce limit checks in the blk layer
+ */
+ ia64_max_iommu_merge_mask = ~PAGE_MASK;
+
+ sn_irq_lh_init();
+ INIT_LIST_HEAD(&sn_sysdata_list);
+ sn_init_cpei_timer();
+
+#ifdef CONFIG_PROC_FS
+ register_sn_procfs();
+#endif
+
+ printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
+ acpi_gbl_DSDT->oem_revision);
+ if (SN_ACPI_BASE_SUPPORT())
+ sn_io_acpi_init();
+ else
+ sn_io_init();
+ return 0;
+}
+
+arch_initcall(sn_io_early_init);
+
+/*
+ * sn_io_late_init() - Perform any final platform specific IO initialization.
+ */
+
+int __init
+sn_io_late_init(void)
+{
+ struct pci_bus *bus;
+ struct pcibus_bussoft *bussoft;
+ cnodeid_t cnode;
+ nasid_t nasid;
+ cnodeid_t near_cnode;
+
+ if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
+ return 0;
+
+ /*
+ * Setup closest node in pci_controller->node for
+ * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using
+ * info from the PROM).
+ */
+ bus = NULL;
+ while ((bus = pci_find_next_bus(bus)) != NULL) {
+ bussoft = SN_PCIBUS_BUSSOFT(bus);
+ nasid = NASID_GET(bussoft->bs_base);
+ cnode = nasid_to_cnodeid(nasid);
+ if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) ||
+ (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE)) {
+ /* TIO PCI Bridge: find nearest node with CPUs */
+ int e = sn_hwperf_get_nearest_node(cnode, NULL,
+ &near_cnode);
+ if (e < 0) {
+ near_cnode = (cnodeid_t)-1; /* use any node */
+ printk(KERN_WARNING "pcibr_bus_fixup: failed "
+ "to find near node with CPUs to TIO "
+ "node %d, err=%d\n", cnode, e);
+ }
+ PCI_CONTROLLER(bus)->node = near_cnode;
+ } else if (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC) {
+ PCI_CONTROLLER(bus)->node = cnode;
+ }
+ }
+
+ sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */
+
+ return 0;
+}
+
+fs_initcall(sn_io_late_init);
+
+EXPORT_SYMBOL(sn_pci_fixup_slot);
+EXPORT_SYMBOL(sn_pci_unfixup_slot);
+EXPORT_SYMBOL(sn_bus_store_sysdata);
+EXPORT_SYMBOL(sn_bus_free_sysdata);
+EXPORT_SYMBOL(sn_generate_path);
+
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index dc09a6a28a3..9ad843e0383 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -3,103 +3,28 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
*/
-#include <linux/bootmem.h>
-#include <linux/nodemask.h>
#include <asm/sn/types.h>
#include <asm/sn/addrs.h>
-#include <asm/sn/sn_feature_sets.h>
-#include <asm/sn/geo.h>
#include <asm/sn/io.h>
-#include <asm/sn/l1.h>
#include <asm/sn/module.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/simulator.h>
#include <asm/sn/sn_sal.h>
-#include <asm/sn/tioca_provider.h>
-#include <asm/sn/tioce_provider.h>
#include "xtalk/hubdev.h"
-#include "xtalk/xwidgetdev.h"
-
-
-extern void sn_init_cpei_timer(void);
-extern void register_sn_procfs(void);
-
-static struct list_head sn_sysdata_list;
-
-/* sysdata list struct */
-struct sysdata_el {
- struct list_head entry;
- void *sysdata;
-};
-
-struct slab_info {
- struct hubdev_info hubdev;
-};
-
-struct brick {
- moduleid_t id; /* Module ID of this module */
- struct slab_info slab_info[MAX_SLABS + 1];
-};
-
-int sn_ioif_inited; /* SN I/O infrastructure initialized? */
-
-struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
-
-static int max_segment_number; /* Default highest segment number */
-static int max_pcibus_number = 255; /* Default highest pci bus number */
/*
- * Hooks and struct for unsupported pci providers
+ * The code in this file will only be executed when running with
+ * a PROM that does _not_ have base ACPI IO support.
+ * (i.e., SN_ACPI_BASE_SUPPORT() == 0)
*/
-static dma_addr_t
-sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
-{
- return 0;
-}
-
-static void
-sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
-{
- return;
-}
-
-static void *
-sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
-{
- return NULL;
-}
-
-static struct sn_pcibus_provider sn_pci_default_provider = {
- .dma_map = sn_default_pci_map,
- .dma_map_consistent = sn_default_pci_map,
- .dma_unmap = sn_default_pci_unmap,
- .bus_fixup = sn_default_pci_bus_fixup,
-};
-
-/*
- * Retrieve the DMA Flush List given nasid, widget, and device.
- * This list is needed to implement the WAR - Flush DMA data on PIO Reads.
- */
-static inline u64
-sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
- u64 address)
-{
- struct ia64_sal_retval ret_stuff;
- ret_stuff.status = 0;
- ret_stuff.v0 = 0;
+static int max_segment_number; /* Default highest segment number */
+static int max_pcibus_number = 255; /* Default highest pci bus number */
- SAL_CALL_NOLOCK(ret_stuff,
- (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
- (u64) nasid, (u64) widget_num,
- (u64) device_num, (u64) address, 0, 0, 0);
- return ret_stuff.status;
-}
/*
* Retrieve the hub device info structure for the given nasid.
@@ -131,93 +56,20 @@ static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
return ret_stuff.v0;
}
-/*
- * Retrieve the pci device information given the bus and device|function number.
- */
-static inline u64
-sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
- u64 sn_irq_info)
-{
- struct ia64_sal_retval ret_stuff;
- ret_stuff.status = 0;
- ret_stuff.v0 = 0;
-
- SAL_CALL_NOLOCK(ret_stuff,
- (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
- (u64) segment, (u64) bus_number, (u64) devfn,
- (u64) pci_dev,
- sn_irq_info, 0, 0);
- return ret_stuff.v0;
-}
-
-/*
- * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
- * device.
- */
-inline struct pcidev_info *
-sn_pcidev_info_get(struct pci_dev *dev)
-{
- struct pcidev_info *pcidev;
-
- list_for_each_entry(pcidev,
- &(SN_PCI_CONTROLLER(dev)->pcidev_info), pdi_list) {
- if (pcidev->pdi_linux_pcidev == dev) {
- return pcidev;
- }
- }
- return NULL;
-}
-
-/* Older PROM flush WAR
- *
- * 01/16/06 -- This war will be in place until a new official PROM is released.
- * Additionally note that the struct sn_flush_device_war also has to be
- * removed from arch/ia64/sn/include/xtalk/hubdev.h
- */
-static u8 war_implemented = 0;
-
-static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
- struct sn_flush_device_common *common)
-{
- struct sn_flush_device_war *war_list;
- struct sn_flush_device_war *dev_entry;
- struct ia64_sal_retval isrv = {0,0,0,0};
-
- if (!war_implemented) {
- printk(KERN_WARNING "PROM version < 4.50 -- implementing old "
- "PROM flush WAR\n");
- war_implemented = 1;
- }
-
- war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
- if (!war_list)
- BUG();
-
- SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
- nasid, widget, __pa(war_list), 0, 0, 0 ,0);
- if (isrv.status)
- panic("sn_device_fixup_war failed: %s\n",
- ia64_sal_strerror(isrv.status));
-
- dev_entry = war_list + device;
- memcpy(common,dev_entry, sizeof(*common));
- kfree(war_list);
-
- return isrv.status;
-}
/*
- * sn_fixup_ionodes() - This routine initializes the HUB data strcuture for
- * each node in the system.
+ * sn_fixup_ionodes() - This routine initializes the HUB data structure for
+ * each node in the system. This function is only
+ * executed when running with a non-ACPI capable PROM.
*/
static void __init sn_fixup_ionodes(void)
{
- struct sn_flush_device_kernel *sn_flush_device_kernel;
- struct sn_flush_device_kernel *dev_entry;
+
struct hubdev_info *hubdev;
u64 status;
u64 nasid;
- int i, widget, device, size;
+ int i;
+ extern void sn_common_hubdev_init(struct hubdev_info *);
/*
* Get SGI Specific HUB chipset information.
@@ -240,70 +92,47 @@ static void __init sn_fixup_ionodes(void)
max_segment_number = hubdev->max_segment_number;
max_pcibus_number = hubdev->max_pcibus_number;
}
+ sn_common_hubdev_init(hubdev);
+ }
+}
- /* Attach the error interrupt handlers */
- if (nasid & 1)
- ice_error_init(hubdev);
- else
- hub_error_init(hubdev);
-
- for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
- hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
-
- if (!hubdev->hdi_flush_nasid_list.widget_p)
- continue;
-
- size = (HUB_WIDGET_ID_MAX + 1) *
- sizeof(struct sn_flush_device_kernel *);
- hubdev->hdi_flush_nasid_list.widget_p =
- kzalloc(size, GFP_KERNEL);
- if (!hubdev->hdi_flush_nasid_list.widget_p)
+/*
+ * sn_pci_legacy_window_fixup - Create PCI controller windows for
+ * legacy IO and MEM space. This needs to
+ * be done here, as the PROM does not have
+ * ACPI support defining the root buses
+ * and their resources (_CRS),
+ */
+static void
+sn_legacy_pci_window_fixup(struct pci_controller *controller,
+ u64 legacy_io, u64 legacy_mem)
+{
+ controller->window = kcalloc(2, sizeof(struct pci_window),
+ GFP_KERNEL);
+ if (controller->window == NULL)
BUG();
-
- for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
- size = DEV_PER_WIDGET *
- sizeof(struct sn_flush_device_kernel);
- sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
- if (!sn_flush_device_kernel)
- BUG();
-
- dev_entry = sn_flush_device_kernel;
- for (device = 0; device < DEV_PER_WIDGET;
- device++,dev_entry++) {
- size = sizeof(struct sn_flush_device_common);
- dev_entry->common = kzalloc(size, GFP_KERNEL);
- if (!dev_entry->common)
- BUG();
-
- if (sn_prom_feature_available(
- PRF_DEVICE_FLUSH_LIST))
- status = sal_get_device_dmaflush_list(
- nasid, widget, device,
- (u64)(dev_entry->common));
- else
- status = sn_device_fixup_war(nasid,
- widget, device,
- dev_entry->common);
- if (status != SALRET_OK)
- panic("SAL call failed: %s\n",
- ia64_sal_strerror(status));
-
- spin_lock_init(&dev_entry->sfdl_flush_lock);
- }
-
- if (sn_flush_device_kernel)
- hubdev->hdi_flush_nasid_list.widget_p[widget] =
- sn_flush_device_kernel;
- }
- }
+ controller->window[0].offset = legacy_io;
+ controller->window[0].resource.name = "legacy_io";
+ controller->window[0].resource.flags = IORESOURCE_IO;
+ controller->window[0].resource.start = legacy_io;
+ controller->window[0].resource.end =
+ controller->window[0].resource.start + 0xffff;
+ controller->window[0].resource.parent = &ioport_resource;
+ controller->window[1].offset = legacy_mem;
+ controller->window[1].resource.name = "legacy_mem";
+ controller->window[1].resource.flags = IORESOURCE_MEM;
+ controller->window[1].resource.start = legacy_mem;
+ controller->window[1].resource.end =
+ controller->window[1].resource.start + (1024 * 1024) - 1;
+ controller->window[1].resource.parent = &iomem_resource;
+ controller->windows = 2;
}
/*
* sn_pci_window_fixup() - Create a pci_window for each device resource.
- * Until ACPI support is added, we need this code
- * to setup pci_windows for use by
- * pcibios_bus_to_resource(),
- * pcibios_resource_to_bus(), etc.
+ * It will setup pci_windows for use by
+ * pcibios_bus_to_resource(), pcibios_resource_to_bus(),
+ * etc.
*/
static void
sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
@@ -342,60 +171,22 @@ sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
controller->window = new_window;
}
-void sn_pci_unfixup_slot(struct pci_dev *dev)
-{
- struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
-
- sn_irq_unfixup(dev);
- pci_dev_put(host_pci_dev);
- pci_dev_put(dev);
-}
-
/*
- * sn_pci_fixup_slot() - This routine sets up a slot's resources
- * consistent with the Linux PCI abstraction layer. Resources acquired
- * from our PCI provider include PIO maps to BAR space and interrupt
- * objects.
+ * sn_more_slot_fixup() - We are not running with an ACPI capable PROM,
+ * and need to convert the pci_dev->resource
+ * 'start' and 'end' addresses to mapped addresses,
+ * and setup the pci_controller->window array entries.
*/
-void sn_pci_fixup_slot(struct pci_dev *dev)
+void
+sn_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
{
unsigned int count = 0;
int idx;
- int segment = pci_domain_nr(dev->bus);
- int status = 0;
- struct pcibus_bussoft *bs;
- struct pci_bus *host_pci_bus;
- struct pci_dev *host_pci_dev;
- struct pcidev_info *pcidev_info;
s64 pci_addrs[PCI_ROM_RESOURCE + 1];
- struct sn_irq_info *sn_irq_info;
- unsigned long size;
- unsigned int bus_no, devfn;
-
- pci_dev_get(dev); /* for the sysdata pointer */
- pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
- if (!pcidev_info)
- BUG(); /* Cannot afford to run out of memory */
-
- sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
- if (!sn_irq_info)
- BUG(); /* Cannot afford to run out of memory */
-
- /* Call to retrieve pci device information needed by kernel. */
- status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
- dev->devfn,
- (u64) __pa(pcidev_info),
- (u64) __pa(sn_irq_info));
- if (status)
- BUG(); /* Cannot get platform pci device information */
-
- /* Add pcidev_info to list in sn_pci_controller struct */
- list_add_tail(&pcidev_info->pdi_list,
- &(SN_PCI_CONTROLLER(dev->bus)->pcidev_info));
+ unsigned long addr, end, size, start;
/* Copy over PIO Mapped Addresses */
for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
- unsigned long start, end, addr;
if (!pcidev_info->pdi_pio_mapped_addr[idx]) {
pci_addrs[idx] = -1;
@@ -419,60 +210,28 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
dev->resource[idx].parent = &ioport_resource;
else
dev->resource[idx].parent = &iomem_resource;
+ /* If ROM, mark as shadowed in PROM */
+ if (idx == PCI_ROM_RESOURCE)
+ dev->resource[idx].flags |= IORESOURCE_ROM_BIOS_COPY;
}
/* Create a pci_window in the pci_controller struct for
* each device resource.
*/
if (count > 0)
sn_pci_window_fixup(dev, count, pci_addrs);
-
- /*
- * Using the PROMs values for the PCI host bus, get the Linux
- * PCI host_pci_dev struct and set up host bus linkages
- */
-
- bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
- devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
- host_pci_bus = pci_find_bus(segment, bus_no);
- host_pci_dev = pci_get_slot(host_pci_bus, devfn);
-
- pcidev_info->host_pci_dev = host_pci_dev;
- pcidev_info->pdi_linux_pcidev = dev;
- pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
- bs = SN_PCIBUS_BUSSOFT(dev->bus);
- pcidev_info->pdi_pcibus_info = bs;
-
- if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
- SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
- } else {
- SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
- }
-
- /* Only set up IRQ stuff if this device has a host bus context */
- if (bs && sn_irq_info->irq_irq) {
- pcidev_info->pdi_sn_irq_info = sn_irq_info;
- dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
- sn_irq_fixup(dev, sn_irq_info);
- } else {
- pcidev_info->pdi_sn_irq_info = NULL;
- kfree(sn_irq_info);
- }
}
/*
* sn_pci_controller_fixup() - This routine sets up a bus's resources
- * consistent with the Linux PCI abstraction layer.
+ * consistent with the Linux PCI abstraction layer.
*/
-void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
+static void
+sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
{
- int status;
- int nasid, cnode;
+ s64 status = 0;
struct pci_controller *controller;
- struct sn_pci_controller *sn_controller;
struct pcibus_bussoft *prom_bussoft_ptr;
- struct hubdev_info *hubdev_info;
- void *provider_soft;
- struct sn_pcibus_provider *provider;
+
status = sal_get_pcibus_info((u64) segment, (u64) busnum,
(u64) ia64_tpa(&prom_bussoft_ptr));
@@ -480,261 +239,77 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
return; /*bus # does not exist */
prom_bussoft_ptr = __va(prom_bussoft_ptr);
- /* Allocate a sn_pci_controller, which has a pci_controller struct
- * as the first member.
- */
- sn_controller = kzalloc(sizeof(struct sn_pci_controller), GFP_KERNEL);
- if (!sn_controller)
+ controller = kzalloc(sizeof(*controller), GFP_KERNEL);
+ if (!controller)
BUG();
- INIT_LIST_HEAD(&sn_controller->pcidev_info);
- controller = &sn_controller->pci_controller;
controller->segment = segment;
- if (bus == NULL) {
- bus = pci_scan_bus(busnum, &pci_root_ops, controller);
- if (bus == NULL)
- goto error_return; /* error, or bus already scanned */
- bus->sysdata = NULL;
- }
-
- if (bus->sysdata)
- goto error_return; /* sysdata already alloc'd */
-
/*
- * Per-provider fixup. Copies the contents from prom to local
- * area and links SN_PCIBUS_BUSSOFT().
+ * Temporarily save the prom_bussoft_ptr for use by sn_bus_fixup().
+ * (platform_data will be overwritten later in sn_common_bus_fixup())
*/
+ controller->platform_data = prom_bussoft_ptr;
- if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES)
- goto error_return; /* unsupported asic type */
-
- if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
- goto error_return; /* no further fixup necessary */
-
- provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
- if (provider == NULL)
- goto error_return; /* no provider registerd for this asic */
+ bus = pci_scan_bus(busnum, &pci_root_ops, controller);
+ if (bus == NULL)
+ goto error_return; /* error, or bus already scanned */
bus->sysdata = controller;
- if (provider->bus_fixup)
- provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
- else
- provider_soft = NULL;
-
- if (provider_soft == NULL) {
- /* fixup failed or not applicable */
- bus->sysdata = NULL;
- goto error_return;
- }
-
- /*
- * Setup pci_windows for legacy IO and MEM space.
- * (Temporary until ACPI support is in place.)
- */
- controller->window = kcalloc(2, sizeof(struct pci_window), GFP_KERNEL);
- if (controller->window == NULL)
- BUG();
- controller->window[0].offset = prom_bussoft_ptr->bs_legacy_io;
- controller->window[0].resource.name = "legacy_io";
- controller->window[0].resource.flags = IORESOURCE_IO;
- controller->window[0].resource.start = prom_bussoft_ptr->bs_legacy_io;
- controller->window[0].resource.end =
- controller->window[0].resource.start + 0xffff;
- controller->window[0].resource.parent = &ioport_resource;
- controller->window[1].offset = prom_bussoft_ptr->bs_legacy_mem;
- controller->window[1].resource.name = "legacy_mem";
- controller->window[1].resource.flags = IORESOURCE_MEM;
- controller->window[1].resource.start = prom_bussoft_ptr->bs_legacy_mem;
- controller->window[1].resource.end =
- controller->window[1].resource.start + (1024 * 1024) - 1;
- controller->window[1].resource.parent = &iomem_resource;
- controller->windows = 2;
-
- /*
- * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
- * after this point.
- */
-
- PCI_CONTROLLER(bus)->platform_data = provider_soft;
- nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
- cnode = nasid_to_cnodeid(nasid);
- hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
- SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
- &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
- /*
- * If the node information we obtained during the fixup phase is invalid
- * then set controller->node to -1 (undetermined)
- */
- if (controller->node >= num_online_nodes()) {
- struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
-
- printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
- "L_IO=%lx L_MEM=%lx BASE=%lx\n",
- b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
- b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
- printk(KERN_WARNING "on node %d but only %d nodes online."
- "Association set to undetermined.\n",
- controller->node, num_online_nodes());
- controller->node = -1;
- }
return;
error_return:
- kfree(sn_controller);
+ kfree(controller);
return;
}
-void sn_bus_store_sysdata(struct pci_dev *dev)
+/*
+ * sn_bus_fixup
+ */
+void
+sn_bus_fixup(struct pci_bus *bus)
{
- struct sysdata_el *element;
-
- element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
- if (!element) {
- dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__);
- return;
- }
- element->sysdata = SN_PCIDEV_INFO(dev);
- list_add(&element->entry, &sn_sysdata_list);
-}
+ struct pci_dev *pci_dev = NULL;
+ struct pcibus_bussoft *prom_bussoft_ptr;
+ extern void sn_common_bus_fixup(struct pci_bus *,
+ struct pcibus_bussoft *);
+
+
+ if (!bus->parent) { /* If root bus */
+ prom_bussoft_ptr = PCI_CONTROLLER(bus)->platform_data;
+ if (prom_bussoft_ptr == NULL) {
+ printk(KERN_ERR
+ "sn_bus_fixup: 0x%04x:0x%02x Unable to "
+ "obtain prom_bussoft_ptr\n",
+ pci_domain_nr(bus), bus->number);
+ return;
+ }
+ sn_common_bus_fixup(bus, prom_bussoft_ptr);
+ sn_legacy_pci_window_fixup(PCI_CONTROLLER(bus),
+ prom_bussoft_ptr->bs_legacy_io,
+ prom_bussoft_ptr->bs_legacy_mem);
+ }
+ list_for_each_entry(pci_dev, &bus->devices, bus_list) {
+ sn_pci_fixup_slot(pci_dev);
+ }
-void sn_bus_free_sysdata(void)
-{
- struct sysdata_el *element;
- struct list_head *list, *safe;
-
- list_for_each_safe(list, safe, &sn_sysdata_list) {
- element = list_entry(list, struct sysdata_el, entry);
- list_del(&element->entry);
- list_del(&(((struct pcidev_info *)
- (element->sysdata))->pdi_list));
- kfree(element->sysdata);
- kfree(element);
- }
- return;
}
/*
- * Ugly hack to get PCI setup until we have a proper ACPI namespace.
+ * sn_io_init - PROM does not have ACPI support to define nodes or root buses,
+ * so we need to do things the hard way, including initiating the
+ * bus scanning ourselves.
*/
-#define PCI_BUSES_TO_SCAN 256
-
-static int __init sn_pci_init(void)
+void __init sn_io_init(void)
{
int i, j;
- struct pci_dev *pci_dev = NULL;
-
- if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
- return 0;
-
- /*
- * prime sn_pci_provider[]. Individial provider init routines will
- * override their respective default entries.
- */
-
- for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
- sn_pci_provider[i] = &sn_pci_default_provider;
- pcibr_init_provider();
- tioca_init_provider();
- tioce_init_provider();
-
- /*
- * This is needed to avoid bounce limit checks in the blk layer
- */
- ia64_max_iommu_merge_mask = ~PAGE_MASK;
sn_fixup_ionodes();
- sn_irq_lh_init();
- INIT_LIST_HEAD(&sn_sysdata_list);
- sn_init_cpei_timer();
-
-#ifdef CONFIG_PROC_FS
- register_sn_procfs();
-#endif
/* busses are not known yet ... */
for (i = 0; i <= max_segment_number; i++)
for (j = 0; j <= max_pcibus_number; j++)
sn_pci_controller_fixup(i, j, NULL);
-
- /*
- * Generic Linux PCI Layer has created the pci_bus and pci_dev
- * structures - time for us to add our SN PLatform specific
- * information.
- */
-
- while ((pci_dev =
- pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) != NULL)
- sn_pci_fixup_slot(pci_dev);
-
- sn_ioif_inited = 1; /* sn I/O infrastructure now initialized */
-
- return 0;
-}
-
-/*
- * hubdev_init_node() - Creates the HUB data structure and link them to it's
- * own NODE specific data area.
- */
-void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
-{
- struct hubdev_info *hubdev_info;
- int size;
- pg_data_t *pg;
-
- size = sizeof(struct hubdev_info);
-
- if (node >= num_online_nodes()) /* Headless/memless IO nodes */
- pg = NODE_DATA(0);
- else
- pg = NODE_DATA(node);
-
- hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
-
- npda->pdinfo = (void *)hubdev_info;
}
-
-geoid_t
-cnodeid_get_geoid(cnodeid_t cnode)
-{
- struct hubdev_info *hubdev;
-
- hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
- return hubdev->hdi_geoid;
-}
-
-void sn_generate_path(struct pci_bus *pci_bus, char *address)
-{
- nasid_t nasid;
- cnodeid_t cnode;
- geoid_t geoid;
- moduleid_t moduleid;
- u16 bricktype;
-
- nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
- cnode = nasid_to_cnodeid(nasid);
- geoid = cnodeid_get_geoid(cnode);
- moduleid = geo_module(geoid);
-
- sprintf(address, "module_%c%c%c%c%.2d",
- '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
- '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
- '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
- MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
-
- /* Tollhouse requires slot id to be displayed */
- bricktype = MODULE_GET_BTYPE(moduleid);
- if ((bricktype == L1_BRICKTYPE_191010) ||
- (bricktype == L1_BRICKTYPE_1932))
- sprintf(address, "%s^%d", address, geo_slot(geoid));
-}
-
-subsys_initcall(sn_pci_init);
-EXPORT_SYMBOL(sn_pci_fixup_slot);
-EXPORT_SYMBOL(sn_pci_unfixup_slot);
-EXPORT_SYMBOL(sn_pci_controller_fixup);
-EXPORT_SYMBOL(sn_bus_store_sysdata);
-EXPORT_SYMBOL(sn_bus_free_sysdata);
-EXPORT_SYMBOL(sn_generate_path);
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index 7ce3cdad627..4aa4f301d56 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -3,10 +3,11 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2000-2003 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2000-2003, 2006 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/module.h>
+#include <linux/acpi.h>
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/vga.h>
@@ -15,6 +16,7 @@
#include <asm/sn/pda.h>
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/shub_mmr.h>
+#include <asm/sn/acpi.h>
#define IS_LEGACY_VGA_IOPORT(p) \
(((p) >= 0x3b0 && (p) <= 0x3bb) || ((p) >= 0x3c0 && (p) <= 0x3df))
@@ -31,11 +33,14 @@ void *sn_io_addr(unsigned long port)
{
if (!IS_RUNNING_ON_SIMULATOR()) {
if (IS_LEGACY_VGA_IOPORT(port))
- port += vga_console_iobase;
+ return (__ia64_mk_io_addr(port));
/* On sn2, legacy I/O ports don't point at anything */
if (port < (64 * 1024))
return NULL;
- return ((void *)(port | __IA64_UNCACHED_OFFSET));
+ if (SN_ACPI_BASE_SUPPORT())
+ return (__ia64_mk_io_addr(port));
+ else
+ return ((void *)(port | __IA64_UNCACHED_OFFSET));
} else {
/* but the simulator uses them... */
unsigned long addr;
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 7a2d824c5ce..1d009f93244 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -388,6 +388,14 @@ void __init sn_setup(char **cmdline_p)
ia64_sn_plat_set_error_handling_features(); // obsolete
ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV);
ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES);
+ /*
+ * Note: The calls to notify the PROM of ACPI and PCI Segment
+ * support must be done prior to acpi_load_tables(), as
+ * an ACPI capable PROM will rebuild the DSDT as result
+ * of the call.
+ */
+ ia64_sn_set_os_feature(OSF_PCISEGMENT_ENABLE);
+ ia64_sn_set_os_feature(OSF_ACPI_ENABLE);
#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
@@ -413,6 +421,16 @@ void __init sn_setup(char **cmdline_p)
if (! vga_console_membase)
sn_scan_pcdp();
+ /*
+ * Setup legacy IO space.
+ * vga_console_iobase maps to PCI IO Space address 0 on the
+ * bus containing the VGA console.
+ */
+ if (vga_console_iobase) {
+ io_space[0].mmio_base = vga_console_iobase;
+ io_space[0].sparse = 0;
+ }
+
if (vga_console_membase) {
/* usable vga ... make tty0 the preferred default console */
if (!strstr(*cmdline_p, "console="))
diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index feaf1a6e810..493380b2c05 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -552,7 +552,7 @@ static void __exit tiocx_exit(void)
bus_unregister(&tiocx_bus_type);
}
-subsys_initcall(tiocx_init);
+fs_initcall(tiocx_init);
module_exit(tiocx_exit);
/************************************************************************
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 27dd7df0f44..6846dc9b432 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 2001-2004 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2001-2004, 2006 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/interrupt.h>
@@ -109,7 +109,6 @@ void *
pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
int nasid, cnode, j;
- cnodeid_t near_cnode;
struct hubdev_info *hubdev_info;
struct pcibus_info *soft;
struct sn_flush_device_kernel *sn_flush_device_kernel;
@@ -186,20 +185,6 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
return NULL;
}
- if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) {
- /* TIO PCI Bridge: find nearest node with CPUs */
- int e = sn_hwperf_get_nearest_node(cnode, NULL, &near_cnode);
-
- if (e < 0) {
- near_cnode = (cnodeid_t)-1; /* use any node */
- printk(KERN_WARNING "pcibr_bus_fixup: failed to find "
- "near node with CPUs to TIO node %d, err=%d\n",
- cnode, e);
- }
- controller->node = near_cnode;
- }
- else
- controller->node = cnode;
return soft;
}
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 46e16dcf597..35f854fb612 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -15,7 +15,6 @@
#include <asm/sn/pcidev.h>
#include <asm/sn/pcibus_provider_defs.h>
#include <asm/sn/tioce_provider.h>
-#include <asm/sn/sn2/sn_hwperf.h>
/*
* 1/26/2006
@@ -990,8 +989,6 @@ tioce_target_interrupt(struct sn_irq_info *sn_irq_info)
static void *
tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
{
- int my_nasid;
- cnodeid_t my_cnode, mem_cnode;
struct tioce_common *tioce_common;
struct tioce_kernel *tioce_kern;
struct tioce __iomem *tioce_mmr;
@@ -1035,21 +1032,6 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
tioce_common->ce_pcibus.bs_persist_segment,
tioce_common->ce_pcibus.bs_persist_busnum);
- /*
- * identify closest nasid for memory allocations
- */
-
- my_nasid = NASID_GET(tioce_common->ce_pcibus.bs_base);
- my_cnode = nasid_to_cnodeid(my_nasid);
-
- if (sn_hwperf_get_nearest_node(my_cnode, &mem_cnode, NULL) < 0) {
- printk(KERN_WARNING "tioce_bus_fixup: failed to find "
- "closest node with MEM to TIO node %d\n", my_cnode);
- mem_cnode = (cnodeid_t)-1; /* use any node */
- }
-
- controller->node = mem_cnode;
-
return tioce_common;
}
diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index 9923adc5248..257dc906846 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -48,7 +48,6 @@ static struct pci_controller *u3_ht;
static int has_second_ohare;
#endif /* CONFIG_PPC64 */
-extern u8 pci_cache_line_size;
extern int pcibios_assign_bus_offset;
struct device_node *k2_skiplist[2];
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c
index e02f01b644a..dfc41cd4bb5 100644
--- a/arch/sparc64/kernel/pci.c
+++ b/arch/sparc64/kernel/pci.c
@@ -646,13 +646,4 @@ int pci_domain_nr(struct pci_bus *pbus)
}
EXPORT_SYMBOL(pci_domain_nr);
-int pcibios_prep_mwi(struct pci_dev *dev)
-{
- /* We set correct PCI_CACHE_LINE_SIZE register values for every
- * device probed on this platform. So there is nothing to check
- * and this always succeeds.
- */
- return 0;
-}
-
#endif /* !(CONFIG_PCI) */