[PATCH V5 4/8] perf: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform
James Clark
james.clark at arm.com
Tue Apr 19 06:57:14 PDT 2022
On 04/04/2022 05:50, Anshuman Khandual wrote:
> 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
>
> Signed-off-by: Anshuman Khandual <anshuman.khandual at arm.com>
Reviewed-by: James Clark <james.clark 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|\
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