Re: [Intel-gfx] [PATCH 2/6] drm/i915/gem: Almagamate clflushes on freeze

[Matthew Auld]

On Tue, 19 Jan 2021 at 14:49, Chris Wilson <ch...@chris-wilson.co.uk> wrote:
>
> When flushing objects larger than the CPU cache it is preferrable to use
> a single wbinvd() rather than overlapping clflush(). At runtime, we
> avoid wbinvd() due to its system-wide latencies, but during
> singlethreaded suspend, no one will observe the imposed latency and we
> can opt for the faster wbinvd to clear all objects in a single hit.
>
> Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.a...@intel.com>
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