[Intel-gfx] [PATCH 2/4] drm/i915: prevent tiling changes on framebuffer backing storage

[Chris Wilson]

On Wed, Oct 09, 2013 at 09:23:52PM +0200, Daniel Vetter wrote:
> Assuming that all framebuffer related metadata is invariant simplifies
> our userspace input data checking. And current userspace always first
> updates the tiling of an object before creating a framebuffer with it.

Userspace already changes the tiling layout whilst keeping the fb id.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre