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perf branch: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform 

This updates the perf tool with arch specific branch type classification
used for BRBE on arm64 platform as added in the kernel earlier.

Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20220824044822.70230-9-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Anshuman Khandual 2022-08-24 10:18:22 +05:30 committed by Arnaldo Carvalho de Melo
parent bcb96ce6d2
commit fb42f8b729
2 changed files with 19 additions and 0 deletions
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6
tools/include/uapi/linux/perf_event.h
View File

@ -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|\

13
tools/perf/util/branch.c
View File

@ -45,11 +45,24 @@ const char *branch_new_type_name(int new_type)
"FAULT_ALGN",
"FAULT_DATA",
"FAULT_INST",
/*
* TODO: This switch should happen on 'session->header.env.arch'
* instead, because an arm64 platform perf recording could be
* opened for analysis on other platforms as well.
*/
#ifdef __aarch64__
"ARM64_FIQ",
"ARM64_DEBUG_HALT",
"ARM64_DEBUG_EXIT",
"ARM64_DEBUG_INST",
"ARM64_DEBUG_DATA"
#else
"ARCH_1",
"ARCH_2",
"ARCH_3",
"ARCH_4",
"ARCH_5"
#endif
};
if (new_type >= 0 && new_type < PERF_BR_NEW_MAX)