diff options
Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r-- | drivers/pci/quirks.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 338a3f94b4d4..9871a3cca4d4 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c | |||
@@ -1363,6 +1363,62 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm); | |||
1363 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); | 1363 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); |
1364 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); | 1364 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); |
1365 | 1365 | ||
1366 | #ifdef CONFIG_X86_IO_APIC | ||
1367 | /* | ||
1368 | * Boot interrupts on some chipsets cannot be turned off. For these chipsets, | ||
1369 | * remap the original interrupt in the linux kernel to the boot interrupt, so | ||
1370 | * that a PCI device's interrupt handler is installed on the boot interrupt | ||
1371 | * line instead. | ||
1372 | */ | ||
1373 | static void quirk_reroute_to_boot_interrupts_intel(struct pci_dev *dev) | ||
1374 | { | ||
1375 | if (noioapicquirk) | ||
1376 | return; | ||
1377 | |||
1378 | dev->irq_reroute_variant = INTEL_IRQ_REROUTE_VARIANT; | ||
1379 | |||
1380 | printk(KERN_INFO "PCI quirk: reroute interrupts for 0x%04x:0x%04x\n", | ||
1381 | dev->vendor, dev->device); | ||
1382 | return; | ||
1383 | } | ||
1384 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_0, quirk_reroute_to_boot_interrupts_intel); | ||
1385 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80333_1, quirk_reroute_to_boot_interrupts_intel); | ||
1386 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB2_0, quirk_reroute_to_boot_interrupts_intel); | ||
1387 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_0, quirk_reroute_to_boot_interrupts_intel); | ||
1388 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXH_1, quirk_reroute_to_boot_interrupts_intel); | ||
1389 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_PXHV, quirk_reroute_to_boot_interrupts_intel); | ||
1390 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_0, quirk_reroute_to_boot_interrupts_intel); | ||
1391 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_80332_1, quirk_reroute_to_boot_interrupts_intel); | ||
1392 | |||
1393 | /* | ||
1394 | * On some chipsets we can disable the generation of legacy INTx boot | ||
1395 | * interrupts. | ||
1396 | */ | ||
1397 | |||
1398 | /* | ||
1399 | * IO-APIC1 on 6300ESB generates boot interrupts, see intel order no | ||
1400 | * 300641-004US, section 5.7.3. | ||
1401 | */ | ||
1402 | #define INTEL_6300_IOAPIC_ABAR 0x40 | ||
1403 | #define INTEL_6300_DISABLE_BOOT_IRQ (1<<14) | ||
1404 | |||
1405 | static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev) | ||
1406 | { | ||
1407 | u16 pci_config_word; | ||
1408 | |||
1409 | if (noioapicquirk) | ||
1410 | return; | ||
1411 | |||
1412 | pci_read_config_word(dev, INTEL_6300_IOAPIC_ABAR, &pci_config_word); | ||
1413 | pci_config_word |= INTEL_6300_DISABLE_BOOT_IRQ; | ||
1414 | pci_write_config_word(dev, INTEL_6300_IOAPIC_ABAR, pci_config_word); | ||
1415 | |||
1416 | printk(KERN_INFO "disabled boot interrupt on device 0x%04x:0x%04x\n", | ||
1417 | dev->vendor, dev->device); | ||
1418 | } | ||
1419 | DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_10, quirk_disable_intel_boot_interrupt); | ||
1420 | #endif /* CONFIG_X86_IO_APIC */ | ||
1421 | |||
1366 | /* | 1422 | /* |
1367 | * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size | 1423 | * Toshiba TC86C001 IDE controller reports the standard 8-byte BAR0 size |
1368 | * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. | 1424 | * but the PIO transfers won't work if BAR0 falls at the odd 8 bytes. |