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| author | Athira Rajeev <atrajeev@linux.vnet.ibm.com> | 2020-07-17 17:38:22 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-07-22 14:56:42 +0300 |
| commit | 80350a4bac992e3404067d31ff901ae9ff76aaa8 (patch) | |
| tree | 23fda11fe5fda018257ff61ed7c66f7331a25b45 /arch/powerpc | |
| parent | bfe3b1945d5e0531103b3d4ab3a367a1a156d99a (diff) | |
| download | linux-80350a4bac992e3404067d31ff901ae9ff76aaa8.tar.xz | |
powerpc/perf: Add Power10 BHRB filter support for PERF_SAMPLE_BRANCH_IND_CALL/COND
PowerISA v3.1 introduce filtering support for
PERF_SAMPLE_BRANCH_IND_CALL/COND. The patch adds BHRB filter
support for "ind_call" and "cond" in power10_bhrb_filter_map().
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1594996707-3727-11-git-send-email-atrajeev@linux.vnet.ibm.com
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/perf/power10-pmu.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/powerpc/perf/power10-pmu.c b/arch/powerpc/perf/power10-pmu.c index 4b65e95c1e01..f7cff7f36a1c 100644 --- a/arch/powerpc/perf/power10-pmu.c +++ b/arch/powerpc/perf/power10-pmu.c @@ -83,6 +83,8 @@ /* MMCRA IFM bits - POWER10 */ #define POWER10_MMCRA_IFM1 0x0000000040000000UL +#define POWER10_MMCRA_IFM2 0x0000000080000000UL +#define POWER10_MMCRA_IFM3 0x00000000C0000000UL #define POWER10_MMCRA_BHRB_MASK 0x00000000C0000000UL /* Table of alternatives, sorted by column 0 */ @@ -233,8 +235,15 @@ static u64 power10_bhrb_filter_map(u64 branch_sample_type) if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY_RETURN) return -1; - if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL) - return -1; + if (branch_sample_type & PERF_SAMPLE_BRANCH_IND_CALL) { + pmu_bhrb_filter |= POWER10_MMCRA_IFM2; + return pmu_bhrb_filter; + } + + if (branch_sample_type & PERF_SAMPLE_BRANCH_COND) { + pmu_bhrb_filter |= POWER10_MMCRA_IFM3; + return pmu_bhrb_filter; + } if (branch_sample_type & PERF_SAMPLE_BRANCH_CALL) return -1; |