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authorYouquan Song <youquan.song@intel.com>2022-09-01 12:43:10 -0700
committerTony Luck <tony.luck@intel.com>2022-09-08 11:40:01 -0700
commit2738c69a8813453b35549465867ae591f8598eb0 (patch)
tree572fe6bb7040d4a553048e794b3c55ec98c16597 /arch
parent627d551a9e75ef81525822ba2a0d9d5a64791d89 (diff)
EDAC/i10nm: Add driver decoder for Ice Lake and Tremont CPUs
Current i10nm_edac only supports firmware decoder (ACPI DSM methods). MCA bank registers of Ice Lake or Tremont CPUs contain the information to decode DDR memory errors. To get better decoding performance, add the driver decoder (decoding DDR memory errors via extracting error information from MCA bank registers) for Ice Lake and Tremont CPUs. Co-developed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Signed-off-by: Youquan Song <youquan.song@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Link: https://lore.kernel.org/all/20220901194310.115427-1-tony.luck@intel.com/
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/include/asm/mce.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index cc73061e7255..6e986088817d 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -42,6 +42,7 @@
#define MCI_STATUS_CEC_SHIFT 38 /* Corrected Error Count */
#define MCI_STATUS_CEC_MASK GENMASK_ULL(52,38)
#define MCI_STATUS_CEC(c) (((c) & MCI_STATUS_CEC_MASK) >> MCI_STATUS_CEC_SHIFT)
+#define MCI_STATUS_MSCOD(m) (((m) >> 16) & 0xffff)
/* AMD-specific bits */
#define MCI_STATUS_TCC BIT_ULL(55) /* Task context corrupt */