[PATCH V6 4/8] perf: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform
Anshuman Khandual
anshuman.khandual at arm.com
Thu Jun 9 20:50:57 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_ARM64_FIQ PERF_BR_NEW_ARCH_1
PERF_BR_ARM64_DEBUG_HALT PERF_BR_NEW_ARCH_2
PERF_BR_ARM64_DEBUG_EXIT PERF_BR_NEW_ARCH_3
PERF_BR_ARM64_DEBUG_INST PERF_BR_NEW_ARCH_4
PERF_BR_ARM64_DEBUG_DATA PERF_BR_NEW_ARCH_5
Cc: Peter Zijlstra <peterz at infradead.org>
Cc: Ingo Molnar <mingo at redhat.com>
Cc: Arnaldo Carvalho de Melo <acme at kernel.org>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Alexander Shishkin <alexander.shishkin at linux.intel.com>
Cc: Jiri Olsa <jolsa at redhat.com>
Cc: Namhyung Kim <namhyung at kernel.org>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Will Deacon <will at kernel.org>
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-perf-users at vger.kernel.org
Cc: linux-kernel at vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
---
include/uapi/linux/perf_event.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 193dba2ecdc1..4cf1c8e22cab 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -282,6 +282,12 @@ enum {
PERF_BR_PRIV_HV = 3,
};
+#define PERF_BR_ARM64_FIQ PERF_BR_NEW_ARCH_1
+#define PERF_BR_ARM64_DEBUG_HALT PERF_BR_NEW_ARCH_2
+#define PERF_BR_ARM64_DEBUG_EXIT PERF_BR_NEW_ARCH_3
+#define PERF_BR_ARM64_DEBUG_INST PERF_BR_NEW_ARCH_4
+#define PERF_BR_ARM64_DEBUG_DATA PERF_BR_NEW_ARCH_5
+
#define PERF_SAMPLE_BRANCH_PLM_ALL \
(PERF_SAMPLE_BRANCH_USER|\
PERF_SAMPLE_BRANCH_KERNEL|\
--
2.25.1
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