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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>
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@ -89,6 +89,11 @@ static inline int siar_valid(struct pt_regs *regs)
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#endif /* CONFIG_PPC32 */
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static bool regs_use_siar(struct pt_regs *regs)
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{
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return !!(regs->result & 1);
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}
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/*
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* Things that are specific to 64-bit implementations.
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*/
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@ -162,7 +167,7 @@ static inline u32 perf_flags_from_msr(struct pt_regs *regs)
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static inline u32 perf_get_misc_flags(struct pt_regs *regs)
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{
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unsigned long use_siar = regs->result;
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bool use_siar = regs_use_siar(regs);
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if (!use_siar)
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return perf_flags_from_msr(regs);
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@ -1425,7 +1430,7 @@ unsigned long perf_misc_flags(struct pt_regs *regs)
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*/
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unsigned long perf_instruction_pointer(struct pt_regs *regs)
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{
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unsigned long use_siar = regs->result;
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bool use_siar = regs_use_siar(regs);
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if (use_siar && siar_valid(regs))
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return mfspr(SPRN_SIAR) + perf_ip_adjust(regs);
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