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;
Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
---
arch/powerpc/perf/core-book3s.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 270eb9b74e2e..e9e6dfff032f 100644
--- 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(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;
--
2.7.4
