[Intel-gfx] [RFC 2/5] drm/i915: Engine capabilities uAPI

[Chris Wilson]

Quoting Tvrtko Ursulin (2017-11-13 13:09:06)
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> 
> To add the knowledge that VCS1 engine does not support HEVC,
> we introduce the concept of engine capabilities. These are
> flags defined in per-engine class space which can be passed
> in during execbuf time. The driver is then able to fail the
> execbuf in case of mismatch between the requested capabilities
> and the selected target engine.
> 
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> ---
>  drivers/gpu/drm/i915/i915_gem_execbuffer.c | 19 +++++++++++++++----
>  drivers/gpu/drm/i915/intel_engine_cs.c     |  3 +++
>  drivers/gpu/drm/i915/intel_ringbuffer.h    |  2 ++
>  include/uapi/drm/i915_drm.h                | 17 ++++++++++++++++-
>  4 files changed, 36 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> index 2e7ddd197cc4..f7aabea601b0 100644
> --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> @@ -56,9 +56,10 @@ enum {
>  #define __EXEC_OBJECT_INTERNAL_FLAGS   (~0u << 27) /* all of the above */
>  #define __EXEC_OBJECT_RESERVED (__EXEC_OBJECT_HAS_PIN | __EXEC_OBJECT_HAS_FENCE)
>  
> -#define __EXEC_HAS_RELOC       BIT(31)
> -#define __EXEC_VALIDATED       BIT(30)
> -#define __EXEC_INTERNAL_FLAGS  (~0u << 30)
> +#define __EXEC_HAS_RELOC       BIT(63)

You'll have to switch to BIT_ULL() as well.
-Chris