From: Madhavan Srinivasan Date: Mon, 20 Feb 2017 13:56:30 +0000 (+0530) Subject: powerpc/perf: Fix perf_get_data_addr() for power9 DD1 X-Git-Tag: v5.15~11681^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=f04d108029063a8a67528a88449c412aecf4d3d8;p=platform%2Fkernel%2Flinux-starfive.git powerpc/perf: Fix perf_get_data_addr() for power9 DD1 Power9 DD1 do not support PMU_HAS_SIER flag and sdsync in perf_get_data_addr() defaults to MMCRA_SDSYNC which is wrong. Since power9 MMCRA does not support SDSYNC bit, patch includes PPMU_NO_SIAR flag to the check and set the sdsync with MMCRA_SAMPLE_ENABLE; Fixes: 27593d72c4ad ("powerpc/perf: Use MSR to report privilege level on P9 DD1") Signed-off-by: Madhavan Srinivasan Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 595dd71..2ff1324 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -188,6 +188,8 @@ static inline void perf_get_data_addr(struct pt_regs *regs, u64 *addrp) sdsync = POWER7P_MMCRA_SDAR_VALID; else if (ppmu->flags & PPMU_ALT_SIPR) sdsync = POWER6_MMCRA_SDSYNC; + else if (ppmu->flags & PPMU_NO_SIAR) + sdsync = MMCRA_SAMPLE_ENABLE; else sdsync = MMCRA_SDSYNC;