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 <atraj...@linux.vnet.ibm.com>
---
arch/powerpc/perf/power10-pmu.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/perf/power10-pmu.c b/arch/powerpc/perf/power10-pmu.c
index ba19f40..b02aabb 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;
--
1.8.3.1
