diff options
| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-02-20 19:26:30 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-14 14:08:19 +0200 |
| commit | d2264474c9c2582fafcd5836dd80b83c95b04e1d (patch) | |
| tree | ed379224423b7173ffba635656e00256a46f4647 /arch | |
| parent | 0587b73378b2f58f4af12a330c8894889ad8b987 (diff) | |
powerpc/perf: Fix perf_get_data_addr() for power9 DD1
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@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/perf/core-book3s.c | 2 |
1 files changed, 2 insertions, 0 deletions
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; |