[Intel-gfx] [PATCH v4] drm/i915: Compare GGTT view structs instead of types

[Tvrtko Ursulin]

Hi,

On 03/27/2015 11:09 AM, Joonas Lahtinen wrote:
> To allow for views where the view type is not defined by the view type only,
> like it is in stereo or rotated 90 degree view, change the semantic to require
> the whole view structure for comparison when we match a GGTT view.
>
> This allows including parameters like offset to be included in the view which
> is useful for eg. partial views.
>
> v3:
> - Rely on ggtt_view type being 0 for non-GGTT vma's, which equals to
>    I915_GGTT_VIEW_NORMAL. (Daniel Vetter)
> - Do not use potentially slower comparison when we only want to know if
>    something is or is not a normal view.
> - Rebase on top of rotated view patches. Add rotated view singleton.
> - If one view is missing in comparison they're equal only if both are missing.
>
> v4:
> - Use comparison helper in obj_to_ggtt_view too. (Tvrtko Ursulin)
> - Do WARN_ON if one view is NULL. (Tvrtko Ursulin)
>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at linux.intel.com> (v2)
> Signed-off-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>

Regards,

Tvrtko