Re: [PATCH V5 4/8] perf: Add PERF_BR_NEW_ARCH_[N] map for BRBE on arm64 platform

[James Clark <james.clark@arm.com>]

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@arm.com>

Reviewed-by: James Clark <james.clark@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|\