linux-kernel - Re: [PATCH v5 1/2] perf tools: Sync perf_event

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Message-ID: <086e2f43-00d2-0738-7d1b-697971161a32@linux.ibm.com>
Date:   Thu, 23 Feb 2023 19:53:55 +0530
From:   kajoljain <kjain@...ux.ibm.com>
To:     Rob Herring <robh@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>
Cc:     Leo Yan <leo.yan@...aro.org>, James Clark <james.clark@....com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v5 1/2] perf tools: Sync perf_event_attr::config3 addition



On 2/18/23 04:02, Rob Herring wrote:
> Arm SPEv1.2 adds another 64-bits of event filtering control. As the
> existing perf_event_attr::configN fields are all used up for SPE PMU, an
> additional field is needed. Add a new 'config3' field.
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
> This matches commit 09519ec3b19e ("perf: Add perf_event_attr::config3")
> for the kernel queued in linux-next.
> ---
>  tools/include/uapi/linux/perf_event.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
> index ea6defacc1a7..a38814ce9485 100644
> --- a/tools/include/uapi/linux/perf_event.h
> +++ b/tools/include/uapi/linux/perf_event.h
> @@ -365,6 +365,7 @@ enum perf_event_read_format {
>  #define PERF_ATTR_SIZE_VER5	112	/* add: aux_watermark */
>  #define PERF_ATTR_SIZE_VER6	120	/* add: aux_sample_size */
>  #define PERF_ATTR_SIZE_VER7	128	/* add: sig_data */
> +#define PERF_ATTR_SIZE_VER8	136	/* add: config3 */
>  
>  /*
>   * Hardware event_id to monitor via a performance monitoring event:
> @@ -506,6 +507,8 @@ struct perf_event_attr {
>  	 * truncated accordingly on 32 bit architectures.
>  	 */
>  	__u64	sig_data;
> +
> +	__u64	config3; /* extension of config2 */

Patch looks fine to me.

Reviewed-by: Kajol Jain <kjain@...ux.ibm.com>

Thanks,
Kajol Jain
>  };
>  
>  /*
>