From: Michael Ellerman <micha...@au1.ibm.com>
Add an accessor for regs->result so we can use it to store more flags in
future.
Signed-off-by: Michael Ellerman <mich...@ellerman.id.au>
---
arch/powerpc/perf/core-book3s.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index cb1618d..770f359 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -132,6 +132,11 @@ static bool regs_sipr(struct pt_regs *regs)
return !!(regs->dsisr & sipr);
}
+static bool regs_use_siar(struct pt_regs *regs)
+{
+ return !!(regs->result & 1);
+}
+
static inline u32 perf_flags_from_msr(struct pt_regs *regs)
{
if (regs->msr & MSR_PR)
@@ -143,7 +148,7 @@ static inline u32 perf_flags_from_msr(struct pt_regs *regs)
static inline u32 perf_get_misc_flags(struct pt_regs *regs)
{
- unsigned long use_siar = regs->result;
+ bool use_siar = regs_use_siar(regs);
if (!use_siar)
return perf_flags_from_msr(regs);
@@ -1413,7 +1418,7 @@ unsigned long perf_misc_flags(struct pt_regs *regs)
*/
unsigned long perf_instruction_pointer(struct pt_regs *regs)
{
- unsigned long use_siar = regs->result;
+ bool use_siar = regs_use_siar(regs);
if (use_siar && siar_valid(regs))
return mfspr(SPRN_SIAR) + perf_ip_adjust(regs);
--
1.7.10.4
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