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EDAC, MCE: Warn about LS MCEs on F14h

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F14h CPUs do not generate LS MCEs so exit early and warn the user in
case this path is ever hit that something else might be going haywire.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov 2010-08-27 17:03:34 +02:00 committed by Borislav Petkov
parent dd53bce4e8
commit ded5062328
1 changed files with 13 additions and 5 deletions
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18
drivers/edac/mce_amd.c
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@ -339,19 +339,27 @@ static void amd_decode_bu_mce(struct mce *m)
static void amd_decode_ls_mce(struct mce *m)
{
u32 ec = m->status & 0xffff;
u32 xec = (m->status >> 16) & 0xf;
u16 ec = m->status & 0xffff;
u8 xec = (m->status >> 16) & 0xf;
if (boot_cpu_data.x86 == 0x14) {
pr_emerg("You shouldn't be seeing an LS MCE on this cpu family,"
" please report on LKML.\n");
return;
}
pr_emerg(HW_ERR "Load Store Error");
if (xec == 0x0) {
u8 rrrr = (ec >> 4) & 0xf;
u8 r4 = (ec >> 4) & 0xf;
if (!BUS_ERROR(ec) || (rrrr != 0x3 && rrrr != 0x4))
if (!BUS_ERROR(ec) || (r4 != R4_DRD && r4 != R4_DWR))
goto wrong_ls_mce;
pr_cont(" during %s.\n", RRRR_MSG(ec));
}
} else
goto wrong_ls_mce;
return;
wrong_ls_mce: