diff options
author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-27 18:35:28 -0400 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-27 18:35:28 -0400 |
commit | fe31eb679752369240fc8880858a5ed974554eb2 (patch) | |
tree | b53fcdb696b6d2048d5a38960aee64f990e2997a /arch/i386 | |
parent | efbfe96c5d839c367249bf1cd53249716450c0a2 (diff) | |
parent | 3560cc5ec3488b20d927f7160a21a0df1d1fda20 (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:
PCI: Remove quirk_via_abnormal_poweroff
PCI: reset pci device state to unknown state for resume
PCI: x86-64: mmconfig missing printk levels
PCI: fix pci_fixup_video as it blows up on sparc64
acpiphp: fix latch status
Diffstat (limited to 'arch/i386')
-rw-r--r-- | arch/i386/pci/fixup.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c index 908b410f4c93..c1949ff38d61 100644 --- a/arch/i386/pci/fixup.c +++ b/arch/i386/pci/fixup.c | |||
@@ -343,6 +343,61 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC, pcie_ro | |||
343 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_rootport_aspm_quirk ); | 343 | DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MCH_PC1, pcie_rootport_aspm_quirk ); |
344 | 344 | ||
345 | /* | 345 | /* |
346 | * Fixup to mark boot BIOS video selected by BIOS before it changes | ||
347 | * | ||
348 | * From information provided by "Jon Smirl" <jonsmirl@gmail.com> | ||
349 | * | ||
350 | * The standard boot ROM sequence for an x86 machine uses the BIOS | ||
351 | * to select an initial video card for boot display. This boot video | ||
352 | * card will have it's BIOS copied to C0000 in system RAM. | ||
353 | * IORESOURCE_ROM_SHADOW is used to associate the boot video | ||
354 | * card with this copy. On laptops this copy has to be used since | ||
355 | * the main ROM may be compressed or combined with another image. | ||
356 | * See pci_map_rom() for use of this flag. IORESOURCE_ROM_SHADOW | ||
357 | * is marked here since the boot video device will be the only enabled | ||
358 | * video device at this point. | ||
359 | */ | ||
360 | |||
361 | static void __devinit pci_fixup_video(struct pci_dev *pdev) | ||
362 | { | ||
363 | struct pci_dev *bridge; | ||
364 | struct pci_bus *bus; | ||
365 | u16 config; | ||
366 | |||
367 | if ((pdev->class >> 8) != PCI_CLASS_DISPLAY_VGA) | ||
368 | return; | ||
369 | |||
370 | /* Is VGA routed to us? */ | ||
371 | bus = pdev->bus; | ||
372 | while (bus) { | ||
373 | bridge = bus->self; | ||
374 | |||
375 | /* | ||
376 | * From information provided by | ||
377 | * "David Miller" <davem@davemloft.net> | ||
378 | * The bridge control register is valid for PCI header | ||
379 | * type BRIDGE, or CARDBUS. Host to PCI controllers use | ||
380 | * PCI header type NORMAL. | ||
381 | */ | ||
382 | if (bridge | ||
383 | &&((bridge->hdr_type == PCI_HEADER_TYPE_BRIDGE) | ||
384 | ||(bridge->hdr_type == PCI_HEADER_TYPE_CARDBUS))) { | ||
385 | pci_read_config_word(bridge, PCI_BRIDGE_CONTROL, | ||
386 | &config); | ||
387 | if (!(config & PCI_BRIDGE_CTL_VGA)) | ||
388 | return; | ||
389 | } | ||
390 | bus = bus->parent; | ||
391 | } | ||
392 | pci_read_config_word(pdev, PCI_COMMAND, &config); | ||
393 | if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) { | ||
394 | pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW; | ||
395 | printk(KERN_DEBUG "Boot video device is %s\n", pci_name(pdev)); | ||
396 | } | ||
397 | } | ||
398 | DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pci_fixup_video); | ||
399 | |||
400 | /* | ||
346 | * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. | 401 | * Some Toshiba laptops need extra code to enable their TI TSB43AB22/A. |
347 | * | 402 | * |
348 | * We pretend to bring them out of full D3 state, and restore the proper | 403 | * We pretend to bring them out of full D3 state, and restore the proper |