[Intel-gfx] [PATCH 1/8] drm/i915: expose helper mapping exec flag engine to intel_engine_cs

[Lionel Landwerlin]

On 25/04/18 12:50, Chris Wilson wrote:
> Quoting Lionel Landwerlin (2018-04-25 12:45:14)
>> This function will be used later by the per (context,engine) power
>> programming interface.
> No. This is not the appropriate uABI, please see
> intel_engine_lookup_user().
> -Chris
>
uAPI wise, does this sound okay? :

#define I915_CONTEXT_PARAM_SSEU         0x7
         __u64 value;

struct drm_i915_gem_context_param_sseu {
/*
          * Engine to be configured or queried.
          */
         __u32 class;
         __u32 instance;

/*
          * Setting slice_mask or subslice_mask to 0 will make the 
context use
          * masks reported respectively by I915_PARAM_SLICE_MASK or
          * I915_PARAM_SUBSLICE_MASK.
          */
         union {
                 struct {
                         __u8 slice_mask;
                         __u8 subslice_mask;
                         __u8 min_eus_per_subslice;
                         __u8 max_eus_per_subslice;
                 } packed;
                 __u64 value;
         };
};