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authorLinus Torvalds <torvalds@linux-foundation.org>2011-01-14 09:29:05 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-01-14 09:29:05 -0800
commitd73b388459b1ee2e80f8ff9c1916d75640d7d920 (patch)
tree3e4061226f817c5728009f0bcc1d810d0c4a7b37 /arch/x86/pci/common.c
parent5957e33d6aec266659a71cfabcf7cf2c593ad0d2 (diff)
parent0f953bf6b4efa0daddb7c418130a9bd3ee97f7ed (diff)
Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI/PM: Report wakeup events before resuming devices PCI/PM: Use pm_wakeup_event() directly for reporting wakeup events PCI: sysfs: Update ROM to include default owner write access x86/PCI: make Broadcom CNB20LE driver EMBEDDED and EXPERIMENTAL x86/PCI: don't use native Broadcom CNB20LE driver when ACPI is available PCI/ACPI: Request _OSC control once for each root bridge (v3) PCI: enable pci=bfsort by default on future Dell systems PCI/PCIe: Clear Root PME Status bits early during system resume PCI: pci-stub: ignore zero-length id parameters x86/PCI: irq and pci_ids patch for Intel Patsburg PCI: Skip id checking if no id is passed PCI: fix __pci_device_probe kernel-doc warning PCI: make pci_restore_state return void PCI: Disable ASPM if BIOS asks us to PCI: Add mask bit definition for MSI-X table PCI: MSI: Move MSI-X entry definition to pci_regs.h Fix up trivial conflicts in drivers/net/{skge.c,sky2.c} that had in the meantime been converted to not use legacy PCI power management, and thus no longer use pci_restore_state() at all (and that caused trivial conflicts with the "make pci_restore_state return void" patch)
Diffstat (limited to 'arch/x86/pci/common.c')
-rw-r--r--arch/x86/pci/common.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index f7c8a399978..5fe75026ecc 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -22,6 +22,7 @@ unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 |
unsigned int pci_early_dump_regs;
static int pci_bf_sort;
+static int smbios_type_b1_flag;
int pci_routeirq;
int noioapicquirk;
#ifdef CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS
@@ -185,6 +186,39 @@ static int __devinit set_bf_sort(const struct dmi_system_id *d)
return 0;
}
+static void __devinit read_dmi_type_b1(const struct dmi_header *dm,
+ void *private_data)
+{
+ u8 *d = (u8 *)dm + 4;
+
+ if (dm->type != 0xB1)
+ return;
+ switch (((*(u32 *)d) >> 9) & 0x03) {
+ case 0x00:
+ printk(KERN_INFO "dmi type 0xB1 record - unknown flag\n");
+ break;
+ case 0x01: /* set pci=bfsort */
+ smbios_type_b1_flag = 1;
+ break;
+ case 0x02: /* do not set pci=bfsort */
+ smbios_type_b1_flag = 2;
+ break;
+ default:
+ break;
+ }
+}
+
+static int __devinit find_sort_method(const struct dmi_system_id *d)
+{
+ dmi_walk(read_dmi_type_b1, NULL);
+
+ if (smbios_type_b1_flag == 1) {
+ set_bf_sort(d);
+ return 0;
+ }
+ return -1;
+}
+
/*
* Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus)
*/
@@ -213,6 +247,13 @@ static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = {
},
#endif /* __i386__ */
{
+ .callback = find_sort_method,
+ .ident = "Dell System",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+ },
+ },
+ {
.callback = set_bf_sort,
.ident = "Dell PowerEdge 1950",
.matches = {