[Intel-gfx] [PATCH] drm/i915: Do not re-allocate vmas in aliasing ppgtt

[Chris Wilson]

On Wed, Apr 22, 2015 at 05:13:38PM +0100, Michel Thierry wrote:
> Aliasing ppgtt is fully allocated right after creation, thus shouldn't
> need to call allocate_va_range in i915_vma_bind.

And?
 
> This duplication started after commit 5c5f645773b6d147bf68c350674dc3ef4f8de83d
> ("drm/i915: drm/i915: Unify aliasing ppgtt handling"), as aliasing ppgtt
> now also uses allocate_va_range.

The choice would be either to allow calling the no-op function, or to
not install a vfunc.

I would move the tracepoint to the actual allocation side, presumably a
real allocate_va_range() will do some filtering and we only really want
to know when the available space is updated.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre