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powerpc/64s: allow machine check handler to set severity and initiator

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Currently severity and initiator are always set to MCE_SEV_ERROR_SYNC and
MCE_INITIATOR_CPU in the core mce code. Allow them to be set by the
machine specific mce handlers.

No functional change for existing handlers.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-02-28 12:00:47 +10:00 committed by Michael Ellerman
parent 1363875bdb
commit c1bbf387d6
3 changed files with 11 additions and 3 deletions
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3
arch/powerpc/include/asm/mce.h
View file

@ -177,7 +177,8 @@ struct mce_error_info {
enum MCE_EratErrorType erat_error_type:8;
enum MCE_TlbErrorType tlb_error_type:8;
} u;
uint8_t reserved[2];
enum MCE_Severity severity:8;
enum MCE_Initiator initiator:8;
};
#define MAX_MC_EVT 100

5
arch/powerpc/kernel/mce.c
View file

@ -90,13 +90,14 @@ void save_mce_event(struct pt_regs *regs, long handled,
mce->gpr3 = regs->gpr[3];
mce->in_use = 1;
mce->initiator = MCE_INITIATOR_CPU;
/* Mark it recovered if we have handled it and MSR(RI=1). */
if (handled && (regs->msr & MSR_RI))
mce->disposition = MCE_DISPOSITION_RECOVERED;
else
mce->disposition = MCE_DISPOSITION_NOT_RECOVERED;
mce->severity = MCE_SEV_ERROR_SYNC;
mce->initiator = mce_err->initiator;
mce->severity = mce_err->severity;
/*
* Populate the mce error_type and type-specific error_type.

6
arch/powerpc/kernel/mce_power.c
View file

@ -281,6 +281,9 @@ long __machine_check_early_realmode_p7(struct pt_regs *regs)
long handled = 1;
struct mce_error_info mce_error_info = { 0 };
mce_error_info.severity = MCE_SEV_ERROR_SYNC;
mce_error_info.initiator = MCE_INITIATOR_CPU;
srr1 = regs->msr;
nip = regs->nip;
@ -352,6 +355,9 @@ long __machine_check_early_realmode_p8(struct pt_regs *regs)
long handled = 1;
struct mce_error_info mce_error_info = { 0 };
mce_error_info.severity = MCE_SEV_ERROR_SYNC;
mce_error_info.initiator = MCE_INITIATOR_CPU;
srr1 = regs->msr;
nip = regs->nip;