[Intel-gfx] [PATCH 27/27] drm/i915/scheduler: Support user-defined priorities

[Chris Wilson]

On Wed, Apr 19, 2017 at 10:41:43AM +0100, Chris Wilson wrote:
> diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
> index f43a22ae955b..200f2cf393b2 100644
> --- a/include/uapi/drm/i915_drm.h
> +++ b/include/uapi/drm/i915_drm.h
> @@ -395,6 +395,8 @@ typedef struct drm_i915_irq_wait {
>  
>  /* Query whether DRM_I915_GEM_EXECBUFFER2 supports user defined execution
>   * priorities and the driver will attempt to execute batches in priority order.
> + * The initial priority for each batch is supplied by the context and is
> + * controlled via I915_CONTEXT_PARAM_PRIORITY.
>   */
>  #define I915_PARAM_HAS_SCHEDULER	 41
>  #define I915_PARAM_HUC_STATUS		 42
> @@ -1318,6 +1320,7 @@ struct drm_i915_gem_context_param {
>  #define I915_CONTEXT_PARAM_GTT_SIZE	0x3
>  #define I915_CONTEXT_PARAM_NO_ERROR_CAPTURE	0x4
>  #define I915_CONTEXT_PARAM_BANNABLE	0x5
> +#define I915_CONTEXT_PARAM_PRIORITY	0x6

Grr. Forgot to add min/max defines.

#define I915_CONTEXT_MAX_USER_PRIORITY		1023 /* inclusive */
#define I915_CONTEXT_DEFAULT_PRIORITY		0
#define I915_CONTEXT_MIN_USER_PRIORITY		-1023 /* inclusive */

Or should it be I915_CONTEXT_PRIORITY_MAX_USER etc?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre