[Intel-gfx] [RFC][PATCH] drm/i915 Prefetch data from memory

[Eric Anholt]

On Tue, 2009-07-21 at 14:18 +0800, ling.ma at intel.com wrote:
> We read data from memory(WB type), in most cases we need not 
> care about prefetch because hardware data prefetch is good enough.
> However here our gpu address is not continuous, hardware prefetch
> is not effective, so we intends to prefetch data in advance.

Can you include measurement of the impact in the commit message?

Also, what if you prefetch past the end of the buffer?

-- 
Eric Anholt
eric at anholt.net                         eric.anholt at intel.com


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