[PATCH V3 05/10] perf: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform
Anshuman Khandual
anshuman.khandual at arm.com
Sun Mar 13 22:58:52 PDT 2022
BRBE captured branch types will overflow perf_branch_entry.type and generic
branch types in perf_branch_entry.new_type. So override each available arch
specific branch type in the following manner to comprehensively process all
reported branch types in BRBE.
PERF_BR_NEW_FIQ PERF_BR_NEW_ARCH_1
PERF_BR_NEW_DEBUG_HALT PERF_BR_NEW_ARCH_2
PERF_BR_NEW_DEBUG_EXIT PERF_BR_NEW_ARCH_3
PERF_BR_NEW_DEBUG_INST PERF_BR_NEW_ARCH_4
PERF_BR_NEW_DEBUG_DATA PERF_BR_NEW_ARCH_5
Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
---
include/uapi/linux/perf_event.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 193dba2ecdc1..37276a737a97 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -282,6 +282,14 @@ enum {
PERF_BR_PRIV_HV = 3,
};
+#ifdef CONFIG_ARM64
+#define PERF_BR_NEW_FIQ PERF_BR_NEW_ARCH_1
+#define PERF_BR_NEW_DEBUG_HALT PERF_BR_NEW_ARCH_2
+#define PERF_BR_NEW_DEBUG_EXIT PERF_BR_NEW_ARCH_3
+#define PERF_BR_NEW_DEBUG_INST PERF_BR_NEW_ARCH_4
+#define PERF_BR_NEW_DEBUG_DATA PERF_BR_NEW_ARCH_5
+#endif
+
#define PERF_SAMPLE_BRANCH_PLM_ALL \
(PERF_SAMPLE_BRANCH_USER|\
PERF_SAMPLE_BRANCH_KERNEL|\
--
2.25.1
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