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powerpc/64s: consolidate MCE counter increment. 

The code in machine_check_exception excludes 64s hvmode when
incrementing the MCE counter only to call opal_machine_check to
increment it specifically for this case.

Remove the exclusion and special case.

Fixes: a43c159042 ("powerpc/pseries: Flush SLB contents on SLB MCE
		errors.")

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michal Suchanek 2018-09-26 14:24:30 +02:00 committed by Michael Ellerman
parent 51303113e3
commit 8a03e81cb1
2 changed files with 1 additions and 5 deletions
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4
arch/powerpc/kernel/traps.c
View File

@ -741,9 +741,7 @@ void machine_check_exception(struct pt_regs *regs)
if (!nested)
nmi_enter();
/* 64s accounts the mce in machine_check_early when in HVMODE */
if (!IS_ENABLED(CONFIG_PPC_BOOK3S_64) || !cpu_has_feature(CPU_FTR_HVMODE))
__this_cpu_inc(irq_stat.mce_exceptions);
__this_cpu_inc(irq_stat.mce_exceptions);
add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE);

2
arch/powerpc/platforms/powernv/opal.c
View File

@ -578,8 +578,6 @@ int opal_machine_check(struct pt_regs *regs)
{
struct machine_check_event evt;
__this_cpu_inc(irq_stat.mce_exceptions);
if (!get_mce_event(&evt, MCE_EVENT_RELEASE))
return 0;