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-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c38
-rw-r--r--arch/x86/include/asm/pci.h1
-rw-r--r--arch/x86/include/asm/pci_x86.h2
-rw-r--r--arch/x86/pci/acpi.c35
-rw-r--r--arch/x86/pci/amd_bus.c2
-rw-r--r--arch/x86/pci/common.c4
6 files changed, 57 insertions, 25 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 9a2a6e32f00f..0e8db6771252 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -122,7 +122,7 @@ static void eeh_enable_irq(struct pci_dev *dev)
* passed back in "userdata".
*/
-static void eeh_report_error(struct pci_dev *dev, void *userdata)
+static int eeh_report_error(struct pci_dev *dev, void *userdata)
{
enum pci_ers_result rc, *res = userdata;
struct pci_driver *driver = dev->driver;
@@ -130,19 +130,21 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata)
dev->error_state = pci_channel_io_frozen;
if (!driver)
- return;
+ return 0;
eeh_disable_irq(dev);
if (!driver->err_handler ||
!driver->err_handler->error_detected)
- return;
+ return 0;
rc = driver->err_handler->error_detected (dev, pci_channel_io_frozen);
/* A driver that needs a reset trumps all others */
if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+
+ return 0;
}
/**
@@ -153,7 +155,7 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata)
* Cumulative response passed back in "userdata".
*/
-static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
+static int eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
{
enum pci_ers_result rc, *res = userdata;
struct pci_driver *driver = dev->driver;
@@ -161,26 +163,28 @@ static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
if (!driver ||
!driver->err_handler ||
!driver->err_handler->mmio_enabled)
- return;
+ return 0;
rc = driver->err_handler->mmio_enabled (dev);
/* A driver that needs a reset trumps all others */
if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+
+ return 0;
}
/**
* eeh_report_reset - tell device that slot has been reset
*/
-static void eeh_report_reset(struct pci_dev *dev, void *userdata)
+static int eeh_report_reset(struct pci_dev *dev, void *userdata)
{
enum pci_ers_result rc, *res = userdata;
struct pci_driver *driver = dev->driver;
if (!driver)
- return;
+ return 0;
dev->error_state = pci_channel_io_normal;
@@ -188,35 +192,39 @@ static void eeh_report_reset(struct pci_dev *dev, void *userdata)
if (!driver->err_handler ||
!driver->err_handler->slot_reset)
- return;
+ return 0;
rc = driver->err_handler->slot_reset(dev);
if ((*res == PCI_ERS_RESULT_NONE) ||
(*res == PCI_ERS_RESULT_RECOVERED)) *res = rc;
if (*res == PCI_ERS_RESULT_DISCONNECT &&
rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
+
+ return 0;
}
/**
* eeh_report_resume - tell device to resume normal operations
*/
-static void eeh_report_resume(struct pci_dev *dev, void *userdata)
+static int eeh_report_resume(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
dev->error_state = pci_channel_io_normal;
if (!driver)
- return;
+ return 0;
eeh_enable_irq(dev);
if (!driver->err_handler ||
!driver->err_handler->resume)
- return;
+ return 0;
driver->err_handler->resume(dev);
+
+ return 0;
}
/**
@@ -226,22 +234,24 @@ static void eeh_report_resume(struct pci_dev *dev, void *userdata)
* dead, and that no further recovery attempts will be made on it.
*/
-static void eeh_report_failure(struct pci_dev *dev, void *userdata)
+static int eeh_report_failure(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
dev->error_state = pci_channel_io_perm_failure;
if (!driver)
- return;
+ return 0;
eeh_disable_irq(dev);
if (!driver->err_handler ||
!driver->err_handler->error_detected)
- return;
+ return 0;
driver->err_handler->error_detected(dev, pci_channel_io_perm_failure);
+
+ return 0;
}
/* ------------------------------------------------------- */
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index b51a1e8b0baf..927958d13c19 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -130,6 +130,7 @@ extern void pci_iommu_alloc(void);
/* generic pci stuff */
#include <asm-generic/pci.h>
+#define PCIBIOS_MAX_MEM_32 0xffffffff
#ifdef CONFIG_NUMA
/* Returns the node based on pci bus */
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index e60fd3e14bdf..cb739cc0a080 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -25,7 +25,7 @@
#define PCI_BIOS_IRQ_SCAN 0x2000
#define PCI_ASSIGN_ALL_BUSSES 0x4000
#define PCI_CAN_SKIP_ISA_ALIGN 0x8000
-#define PCI_USE__CRS 0x10000
+#define PCI_NO_ROOT_CRS 0x10000
#define PCI_CHECK_ENABLE_AMD_MMCONF 0x20000
#define PCI_HAS_IO_ECS 0x40000
#define PCI_NOASSIGN_ROMS 0x80000
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index c0ecf250fe51..16c3fda85bba 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -38,15 +38,26 @@ count_resource(struct acpi_resource *acpi_res, void *data)
struct acpi_resource_address64 addr;
acpi_status status;
- if (info->res_num >= PCI_BUS_NUM_RESOURCES)
- return AE_OK;
-
status = resource_to_addr(acpi_res, &addr);
if (ACPI_SUCCESS(status))
info->res_num++;
return AE_OK;
}
+static int
+bus_has_transparent_bridge(struct pci_bus *bus)
+{
+ struct pci_dev *dev;
+
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ u16 class = dev->class >> 8;
+
+ if (class == PCI_CLASS_BRIDGE_PCI && dev->transparent)
+ return true;
+ }
+ return false;
+}
+
static acpi_status
setup_resource(struct acpi_resource *acpi_res, void *data)
{
@@ -56,9 +67,7 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
acpi_status status;
unsigned long flags;
struct resource *root;
-
- if (info->res_num >= PCI_BUS_NUM_RESOURCES)
- return AE_OK;
+ int max_root_bus_resources = PCI_BUS_NUM_RESOURCES;
status = resource_to_addr(acpi_res, &addr);
if (!ACPI_SUCCESS(status))
@@ -82,6 +91,18 @@ setup_resource(struct acpi_resource *acpi_res, void *data)
res->end = res->start + addr.address_length - 1;
res->child = NULL;
+ if (bus_has_transparent_bridge(info->bus))
+ max_root_bus_resources -= 3;
+ if (info->res_num >= max_root_bus_resources) {
+ printk(KERN_WARNING "PCI: Failed to allocate 0x%lx-0x%lx "
+ "from %s for %s due to _CRS returning more than "
+ "%d resource descriptors\n", (unsigned long) res->start,
+ (unsigned long) res->end, root->name, info->name,
+ max_root_bus_resources);
+ info->res_num++;
+ return AE_OK;
+ }
+
if (insert_resource(root, res)) {
printk(KERN_ERR "PCI: Failed to allocate 0x%lx-0x%lx "
"from %s for %s\n", (unsigned long) res->start,
@@ -217,7 +238,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int do
#endif
}
- if (bus && (pci_probe & PCI_USE__CRS))
+ if (bus && !(pci_probe & PCI_NO_ROOT_CRS))
get_current_resources(device, busnum, domain, bus);
return bus;
}
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index f893d6a6e803..2255f880678b 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -101,7 +101,7 @@ void x86_pci_root_bus_res_quirks(struct pci_bus *b)
struct pci_root_info *info;
/* don't go for it if _CRS is used */
- if (pci_probe & PCI_USE__CRS)
+ if (!(pci_probe & PCI_NO_ROOT_CRS))
return;
/* if only one root bus, don't need to anything */
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 2202b6257b82..4740119e4bb7 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -515,8 +515,8 @@ char * __devinit pcibios_setup(char *str)
} else if (!strcmp(str, "assign-busses")) {
pci_probe |= PCI_ASSIGN_ALL_BUSSES;
return NULL;
- } else if (!strcmp(str, "use_crs")) {
- pci_probe |= PCI_USE__CRS;
+ } else if (!strcmp(str, "nocrs")) {
+ pci_probe |= PCI_NO_ROOT_CRS;
return NULL;
} else if (!strcmp(str, "earlydump")) {
pci_early_dump_regs = 1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-24 11:28:31 +0000