diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2013-04-25 19:28:25 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-04-26 16:11:08 +1000 |
| commit | 33904054b40832908dfaeeece282f2f0ff636f14 (patch) | |
| tree | 69651a659197f703c907cf94cd02b004e79aad21 /arch | |
| parent | 5682c460264149b258b82105f0eefcb9878aa1e7 (diff) | |
powerpc/perf: Add an accessor for regs->result
Add an accessor for regs->result so we can use it to store more flags in
future.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/perf/core-book3s.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 2417fe2a573..5d300017873 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -89,6 +89,11 @@ static inline int siar_valid(struct pt_regs *regs) #endif /* CONFIG_PPC32 */ +static bool regs_use_siar(struct pt_regs *regs) +{ + return !!(regs->result & 1); +} + /* * Things that are specific to 64-bit implementations. */ @@ -162,7 +167,7 @@ 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); @@ -1425,7 +1430,7 @@ 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); |