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authorTony Luck <tony.luck@intel.com>2012-01-26 16:02:22 -0800
committerTony Luck <tony.luck@intel.com>2012-01-26 16:02:22 -0800
commit08dda402d60a721ac94e79efd7646b332be3e3b2 (patch)
tree8b1e10588fd4d847997ebb1a958d3bbd3d1ea0a3 /arch/x86/kernel/cpu/mcheck/mce-severity.c
parent5f7b88d51e89771f64c15903b96b5933dd0bc6d8 (diff)
x86/mce: Replace hard coded hex constants with symbolic defines
Magic constants like 0x0134 in code just invite questions on where they come from, what they mean, can they be changed. Provide #defines for the architecturally defined MCACOD values with a reference to the Intel Software Developers manual which describes them. Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce-severity.c')
-rw-r--r--arch/x86/kernel/cpu/mcheck/mce-severity.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index f6c92f99efa..0c82091b165 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -56,6 +56,12 @@ static struct severity {
#define MCI_UC_SAR (MCI_STATUS_UC|MCI_STATUS_S|MCI_STATUS_AR)
#define MCI_ADDR (MCI_STATUS_ADDRV|MCI_STATUS_MISCV)
#define MCACOD 0xffff
+/* Architecturally defined codes from SDM Vol. 3B Chapter 15 */
+#define MCACOD_SCRUB 0x00C0 /* 0xC0-0xCF Memory Scrubbing */
+#define MCACOD_SCRUBMSK 0xfff0
+#define MCACOD_L3WB 0x017A /* L3 Explicit Writeback */
+#define MCACOD_DATA 0x0134 /* Data Load */
+#define MCACOD_INSTR 0x0150 /* Instruction Fetch */
MCESEV(
NO, "Invalid",
@@ -112,12 +118,12 @@ static struct severity {
#ifdef CONFIG_MEMORY_FAILURE
MCESEV(
KEEP, "HT thread notices Action required: data load error",
- SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, MCI_UC_SAR|MCI_ADDR|0x0134),
+ SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, MCI_UC_SAR|MCI_ADDR|MCACOD_DATA),
MCGMASK(MCG_STATUS_EIPV, 0)
),
MCESEV(
AR, "Action required: data load error",
- SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, MCI_UC_SAR|MCI_ADDR|0x0134),
+ SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCI_ADDR|MCACOD, MCI_UC_SAR|MCI_ADDR|MCACOD_DATA),
USER
),
#endif
@@ -129,11 +135,11 @@ static struct severity {
/* known AO MCACODs: */
MCESEV(
AO, "Action optional: memory scrubbing error",
- SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|0xfff0, MCI_UC_S|0x00c0)
+ SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCACOD_SCRUBMSK, MCI_UC_S|MCACOD_SCRUB)
),
MCESEV(
AO, "Action optional: last level cache writeback error",
- SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCACOD, MCI_UC_S|0x017a)
+ SER, MASK(MCI_STATUS_OVER|MCI_UC_SAR|MCACOD, MCI_UC_S|MCACOD_L3WB)
),
MCESEV(
SOME, "Action optional: unknown MCACOD",