From 33904054b40832908dfaeeece282f2f0ff636f14 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 25 Apr 2013 19:28:25 +0000 Subject: 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 Acked-by: Paul Mackerras Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/perf/core-book3s.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/powerpc/perf') diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 2417fe2a5736..5d3000178736 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); -- cgit v1.2.3