[PATCH 1/3] drm/radeon: GPU virtual memory support v22

[Daniel Vetter]

On Mon, Jan 09, 2012 at 11:07:44AM -0500, Alex Deucher wrote:
> We would have liked to as well, but with the holidays and internal
> review process and people being on vacation, and the kernel merge
> window timing it didn't work out this time.  Still as Jerome said, our
> VM setup is tightly coupled with the way our HW works.  I'm not sure
> how much code could actually be shared.

Again to clarify, I'm not so much interesting in sharing code here - I
know it'll be nigh to impossible by having looked through nouveau already
and quickly glossed through your stuff. I see the value is just in having
a minimal set of common idioms that we can use to build cool stuff like
resource management.

Think of gem, which is actually about next to nothing. There's a the flink
stuff and a common close ioctl and recently also a dummy create unusable
for anythine else than boot spalsh screens. Plus the shmem backing store
which seems to be not so much in favour with embedded chips, i.e doesn't
really count. Ridiculous compared to all the other stuff required to draw
triangles on a gpu, but good enough to make things like dri2 and wayland
possible.

Cheers, daniel
-- 
Daniel Vetter
Mail: daniel at ffwll.ch
Mobile: +41 (0)79 365 57 48