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MCE, AMD: Dump error status

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Dump error status after decoding the error which describes the error
disposition.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2012-09-14 20:25:37 +02:00 committed by Borislav Petkov
parent d824c7718b
commit d5c6770d4c
2 changed files with 22 additions and 6 deletions
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22
drivers/edac/mce_amd.c
View File

@ -667,6 +667,22 @@ static bool amd_filter_mce(struct mce *m)
return false; return false;
} }
static const char *decode_error_status(struct mce *m)
{
if (m->status & MCI_STATUS_UC) {
if (m->status & MCI_STATUS_PCC)
return "System Fatal error.";
if (m->mcgstatus & MCG_STATUS_RIPV)
return "Uncorrected, software restartable error.";
return "Uncorrected, software containable error.";
}
if (m->status & MCI_STATUS_DEFERRED)
return "Deferred error.";
return "Corrected error, no action required.";
}
int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
{ {
struct mce *m = (struct mce *)data; struct mce *m = (struct mce *)data;
@ -712,6 +728,8 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
break; break;
} }
pr_emerg(HW_ERR "Error Status: %s\n", decode_error_status(m));
pr_emerg(HW_ERR "CPU:%d (%x:%x:%x) MC%d_STATUS[%s|%s|%s|%s|%s", pr_emerg(HW_ERR "CPU:%d (%x:%x:%x) MC%d_STATUS[%s|%s|%s|%s|%s",
m->extcpu, m->extcpu,
c->x86, c->x86_model, c->x86_mask, c->x86, c->x86_model, c->x86_mask,
@ -724,8 +742,8 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
if (c->x86 == 0x15) if (c->x86 == 0x15)
pr_cont("|%s|%s", pr_cont("|%s|%s",
((m->status & BIT_64(44)) ? "Deferred" : "-"), ((m->status & MCI_STATUS_DEFERRED) ? "Deferred" : "-"),
((m->status & BIT_64(43)) ? "Poison" : "-")); ((m->status & MCI_STATUS_POISON) ? "Poison" : "-"));
/* do the two bits[14:13] together */ /* do the two bits[14:13] together */
ecc = (m->status >> 45) & 0x3; ecc = (m->status >> 45) & 0x3;

6
drivers/edac/mce_amd.h
View File

@ -29,10 +29,8 @@
#define R4(x) (((x) >> 4) & 0xf) #define R4(x) (((x) >> 4) & 0xf)
#define R4_MSG(x) ((R4(x) < 9) ? rrrr_msgs[R4(x)] : "Wrong R4!") #define R4_MSG(x) ((R4(x) < 9) ? rrrr_msgs[R4(x)] : "Wrong R4!")
/* #define MCI_STATUS_DEFERRED BIT_64(44)
* F3x4C bits (MCi_STATUS' high half) #define MCI_STATUS_POISON BIT_64(43)
*/
#define NBSH_ERR_CPU_VAL BIT(24)
enum tt_ids { enum tt_ids {
TT_INSTR = 0, TT_INSTR = 0,