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-rw-r--r--arch/powerpc/perf/perf_regs.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/perf/perf_regs.c b/arch/powerpc/perf/perf_regs.c
index 09ceea6175ba..5c36b3a8d47a 100644
--- a/arch/powerpc/perf/perf_regs.c
+++ b/arch/powerpc/perf/perf_regs.c
@@ -69,6 +69,7 @@ static unsigned int pt_regs_offset[PERF_REG_POWERPC_MAX] = {
PT_REGS_OFFSET(PERF_REG_POWERPC_TRAP, trap),
PT_REGS_OFFSET(PERF_REG_POWERPC_DAR, dar),
PT_REGS_OFFSET(PERF_REG_POWERPC_DSISR, dsisr),
+ PT_REGS_OFFSET(PERF_REG_POWERPC_SIER, dar),
};
u64 perf_reg_value(struct pt_regs *regs, int idx)
@@ -76,6 +77,12 @@ u64 perf_reg_value(struct pt_regs *regs, int idx)
if (WARN_ON_ONCE(idx >= PERF_REG_POWERPC_MAX))
return 0;
+ if (idx == PERF_REG_POWERPC_SIER &&
+ (IS_ENABLED(CONFIG_FSL_EMB_PERF_EVENT) ||
+ IS_ENABLED(CONFIG_PPC32) ||
+ !is_sier_available()))
+ return 0;
+
return regs_get_register(regs, pt_regs_offset[idx]);
}