On Tue, May 06, 2025 at 12:41:38PM +0100, James Clark wrote:
> Arm FEAT_SPE_FDS adds the ability to filter on the data source of a
> packet using 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 'config4' field.
>
> Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Leo Yan <leo.yan@arm.com>
> ---
> include/uapi/linux/perf_event.h | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
> index 5fc753c23734..c7c2b1d4ad28 100644
> --- a/include/uapi/linux/perf_event.h
> +++ b/include/uapi/linux/perf_event.h
> @@ -379,6 +379,7 @@ enum perf_event_read_format {
> #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 */
> +#define PERF_ATTR_SIZE_VER9 144 /* add: config4 */
>
> /*
> * Hardware event_id to monitor via a performance monitoring event:
> @@ -533,6 +534,7 @@ struct perf_event_attr {
> __u64 sig_data;
>
> __u64 config3; /* extension of config2 */
> + __u64 config4; /* extension of config3 */
> };
>
> /*
>
> --
> 2.34.1
>