[Intel-gfx] [PATCH] drm/i915: set vdbox/vebox enable masks on all gens

[Chris Wilson]

Quoting Daniele Ceraolo Spurio (2019-03-21 22:02:06)
> The upcoming unified GuC FW will require us to send video engine enable
> masks to GuC for its initialization.
> 
> For consistency, just set the runtime_info enable masks for all gens.
> We'll then be able to directly use those in the GuC setup
> 
> Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
> Cc: John Spotswood <john.a.spotswood at intel.com>
> Cc: Eric Betancourt <eric.s.betancourt at intel.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> ---
>  drivers/gpu/drm/i915/intel_device_info.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index eddf83807957..836184d6538e 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -872,8 +872,14 @@ void intel_device_info_init_mmio(struct drm_i915_private *dev_priv)
>         unsigned int i;
>         u32 media_fuse;
>  
> -       if (INTEL_GEN(dev_priv) < 11)
> +       if (INTEL_GEN(dev_priv) < 11) {
> +               RUNTIME_INFO(dev_priv)->vdbox_enable =
> +                       (info->engine_mask & GENMASK(VCS0 + I915_MAX_VCS, VCS0)) >> VCS0;
> +
> +               RUNTIME_INFO(dev_priv)->vebox_enable =
> +                       (info->engine_mask & GENMASK(VECS0 + I915_MAX_VECS, VECS0)) >> VECS0;

Should we do this unconditionally as it seems reasonably
self-desciptive, with a follow to say that on gen11+ we can query the hw
fuses to see what is actually available?
-Chris