diff options
| author | Paul Mundt <lethal@linux-sh.org> | 2011-01-06 18:24:07 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2011-01-06 18:24:07 +0900 |
| commit | f862f904d357dc0d3612347a8dbabe6fae037fbb (patch) | |
| tree | d7f5c2d5f85fd9e1cfc36beae904dc4f9cca04a3 /drivers/pci/quirks.c | |
| parent | 6f09e41d704fe0bc9157a5357480751d39361d01 (diff) | |
| parent | 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff) | |
| download | linux-f862f904d357dc0d3612347a8dbabe6fae037fbb.tar.bz2 | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Conflicts:
arch/sh/kernel/cpu/sh2a/clock-sh7201.c
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 6f9350cabbd5..53a786fd0d40 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2329,6 +2329,9 @@ static void __devinit nvbridge_check_legacy_irq_routing(struct pci_dev *dev) { u32 cfg; + if (!pci_find_capability(dev, PCI_CAP_ID_HT)) + return; + pci_read_config_dword(dev, 0x74, &cfg); if (cfg & ((1 << 2) | (1 << 15))) { @@ -2764,6 +2767,29 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_m DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_RICOH, PCI_DEVICE_ID_RICOH_R5C832, ricoh_mmc_fixup_r5c832); #endif /*CONFIG_MMC_RICOH_MMC*/ +#if defined(CONFIG_DMAR) || defined(CONFIG_INTR_REMAP) +#define VTUNCERRMSK_REG 0x1ac +#define VTD_MSK_SPEC_ERRORS (1 << 31) +/* + * This is a quirk for masking vt-d spec defined errors to platform error + * handling logic. With out this, platforms using Intel 7500, 5500 chipsets + * (and the derivative chipsets like X58 etc) seem to generate NMI/SMI (based + * on the RAS config settings of the platform) when a vt-d fault happens. + * The resulting SMI caused the system to hang. + * + * VT-d spec related errors are already handled by the VT-d OS code, so no + * need to report the same error through other channels. + */ +static void vtd_mask_spec_errors(struct pci_dev *dev) +{ + u32 word; + + pci_read_config_dword(dev, VTUNCERRMSK_REG, &word); + pci_write_config_dword(dev, VTUNCERRMSK_REG, word | VTD_MSK_SPEC_ERRORS); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x342e, vtd_mask_spec_errors); +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x3c28, vtd_mask_spec_errors); +#endif static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) |