[Intel-gfx] [PATCH] Revert "drm/i915: Kill GTT mappings when moving from GTT domain"

[Keith Packard]

On Sun, 19 Jun 2011 22:49:36 +0100, Chris Wilson <chris at chris-wilson.co.uk> wrote:

> The patch closes a race condition. The essence of your complaint is that
> the kernel is not as fast as we need it to be, and that the initial upload
> to any object is slower than expected. I presume you also have a plan for
> fixing the underwhelming performance of a glibc memcpy through an
> established GTT mapping?

I see a performance regression in a critical path for most applications
(texture upload), and I'm not seeing any bug report that your fix
closes. That seems pretty conclusive to me; I'll plan on pushing a
revert of this patch to eliminate the regression from the previous
version.

-- 
keith.packard at intel.com
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