[Intel-gfx] [RFC 2/4] drm/i915/perf: Add support for collecting 64 bit timestamps with OA reports

[Lionel Landwerlin]

On 15/11/17 12:13, Sagar Arun Kamble wrote:
> --- a/include/uapi/drm/i915_drm.h
> +++ b/include/uapi/drm/i915_drm.h
> @@ -1447,6 +1447,12 @@ enum drm_i915_perf_property_id {
>   	DRM_I915_PERF_PROP_SAMPLE_OA,
>   
>   	/**
> +	 * The value of this property set to 1 requests inclusion of GPU
> +	 * timestamp in the perf sample data.
> +	 */
> +	DRM_I915_PERF_PROP_SAMPLE_GPU_TS,
> +
> +	/**
>   	 * The value specifies which set of OA unit metrics should be
>   	 * be configured, defining the contents of any OA unit reports.
>   	 */


Inserting this, not at the end of this enum break API/ABI.
This applies to other patches too.