[Intel-gfx] [PATCH] [RFC] drm/i915: read-read semaphore optimization

[Keith Packard]

On Tue, 13 Dec 2011 17:01:33 +0100, Daniel Vetter <daniel at ffwll.ch> wrote:

> - or remove it all and invalidate/flush unconditionally.

Eric and I were chatting yesterday about trying this -- it seems like
we'd be able to dramatically simplify the kernel module by doing this,
and given how much flushing already occurs, I doubt we'd see any
significant performance difference, and we'd save a pile of CPU time,
which might actually improve performance.

-- 
keith.packard at intel.com
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