4.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx> commit f04d108029063a8a67528a88449c412aecf4d3d8 upstream. 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 <maddy@xxxxxxxxxxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/powerpc/perf/core-book3s.c | 2 ++ 1 file changed, 2 insertions(+) --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -183,6 +183,8 @@ static inline void perf_get_data_addr(st 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;