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| author | Mark Brown <broonie@kernel.org> | 2018-07-05 11:05:54 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-05 11:05:54 +0100 |
| commit | 0ea97d66df2a8b85698823b4d55d798a7870d7b5 (patch) | |
| tree | e4f36af1342ebcbcb5878e66b1e72661b6f2ca1d /arch/x86/kernel/quirks.c | |
| parent | eed41b9f413f40183095d27ffc94fb942fe18bb6 (diff) | |
| parent | 6183a1afdd2fb1c994e95af9d6db45f157241a04 (diff) | |
Merge branch 'linux-linaro-lsk-v4.14' into linux-linaro-lsk-v4.14-rtlsk-v4.14-18.07-rt
Diffstat (limited to 'arch/x86/kernel/quirks.c')
| -rw-r--r-- | arch/x86/kernel/quirks.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c index 697a4ce04308..736348ead421 100644 --- a/arch/x86/kernel/quirks.c +++ b/arch/x86/kernel/quirks.c @@ -645,12 +645,19 @@ static void quirk_intel_brickland_xeon_ras_cap(struct pci_dev *pdev) /* Skylake */ static void quirk_intel_purley_xeon_ras_cap(struct pci_dev *pdev) { - u32 capid0; + u32 capid0, capid5; pci_read_config_dword(pdev, 0x84, &capid0); + pci_read_config_dword(pdev, 0x98, &capid5); - if ((capid0 & 0xc0) == 0xc0) + /* + * CAPID0{7:6} indicate whether this is an advanced RAS SKU + * CAPID5{8:5} indicate that various NVDIMM usage modes are + * enabled, so memory machine check recovery is also enabled. + */ + if ((capid0 & 0xc0) == 0xc0 || (capid5 & 0x1e0)) static_branch_inc(&mcsafe_key); + } DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x0ec3, quirk_intel_brickland_xeon_ras_cap); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x2fc0, quirk_intel_brickland_xeon_ras_cap); |