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path: root/drivers/pci/quirks.c
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Diffstat (limited to 'drivers/pci/quirks.c')
-rw-r--r--drivers/pci/quirks.c36
1 files changed, 3 insertions, 33 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 3ea0b29c0104..27c0e6eb7136 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2123,6 +2123,9 @@ static void __devinit quirk_disable_msi(struct pci_dev *dev)
2123 } 2123 }
2124} 2124}
2125DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi); 2125DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8131_BRIDGE, quirk_disable_msi);
2126DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD, 0x9602, quirk_disable_msi);
2127DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASUSTEK, 0x9602, quirk_disable_msi);
2128DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AI, 0x9602, quirk_disable_msi);
2126DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi); 2129DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, 0xa238, quirk_disable_msi);
2127 2130
2128/* Go through the list of Hypertransport capabilities and 2131/* Go through the list of Hypertransport capabilities and
@@ -2495,39 +2498,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4374,
2495DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, 2498DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
2496 quirk_msi_intx_disable_bug); 2499 quirk_msi_intx_disable_bug);
2497 2500
2498/*
2499 * MSI does not work with the AMD RS780/RS880 internal graphics and HDMI audio
2500 * devices unless the BIOS has initialized the nb_cntl.strap_msi_enable bit.
2501 */
2502static void __init rs780_int_gfx_disable_msi(struct pci_dev *int_gfx_bridge)
2503{
2504 u32 nb_cntl;
2505
2506 if (!int_gfx_bridge->subordinate)
2507 return;
2508
2509 pci_bus_write_config_dword(int_gfx_bridge->bus, PCI_DEVFN(0, 0),
2510 0x60, 0);
2511 pci_bus_read_config_dword(int_gfx_bridge->bus, PCI_DEVFN(0, 0),
2512 0x64, &nb_cntl);
2513
2514 if (!(nb_cntl & BIT(10))) {
2515 dev_warn(&int_gfx_bridge->dev,
2516 FW_WARN "RS780: MSI for internal graphics disabled\n");
2517 int_gfx_bridge->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
2518 }
2519}
2520
2521#define PCI_DEVICE_ID_AMD_RS780_P2P_INT_GFX 0x9602
2522
2523DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,
2524 PCI_DEVICE_ID_AMD_RS780_P2P_INT_GFX,
2525 rs780_int_gfx_disable_msi);
2526/* wrong vendor ID on M4A785TD motherboard: */
2527DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ASUSTEK,
2528 PCI_DEVICE_ID_AMD_RS780_P2P_INT_GFX,
2529 rs780_int_gfx_disable_msi);
2530
2531#endif /* CONFIG_PCI_MSI */ 2501#endif /* CONFIG_PCI_MSI */
2532 2502
2533#ifdef CONFIG_PCI_IOV 2503#ifdef CONFIG_PCI_IOV