Re: [PATCH] drm/i915/gem: Clear read/write domains for GPU clear

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On 24/06/2019 17:00, Chris Wilson wrote:
Quoting Matthew Auld (2019-06-24 16:50:48)
On 24/06/2019 15:16, Chris Wilson wrote:
Update the domains for the write via the GPU so that we do not
shortcircuit any set-domain wait afterwards.

I'm lost. How do we short-circuit the set-domain wait?

If we never change the read_domain, then we may skip the clflush on
set_cpu_domain thus missing the updated contents on !llc.

So s/wait/clflush/ to be precise

Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>

-Chris

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