From: Matthew Auld <matthew.william.auld@gmail.com>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Subject: Re: [Intel-gfx] [PATCH 1/6] drm/i915/gem: Almagamate clflushes on suspend
Date: Tue, 19 Jan 2021 17:26:11 +0000 [thread overview]
Message-ID: <CAM0jSHOFwZzYpp735Qgc=3fBt62QiXuoC3s_kBZWVp8ePpbmRw@mail.gmail.com> (raw)
In-Reply-To: <20210119144912.12653-1-chris@chris-wilson.co.uk>
On Tue, 19 Jan 2021 at 14:49, Chris Wilson <chris@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 <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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next prev parent reply other threads:[~2021-01-19 19:04 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 14:49 [Intel-gfx] [PATCH 1/6] drm/i915/gem: Almagamate clflushes on suspend Chris Wilson
2021-01-19 14:49 ` [Intel-gfx] [PATCH 2/6] drm/i915/gem: Almagamate clflushes on freeze Chris Wilson
2021-01-19 15:34 ` Matthew Auld
2021-01-23 14:46 ` Guenter Roeck
2021-01-23 14:53 ` Chris Wilson
2021-01-19 14:49 ` [Intel-gfx] [PATCH 3/6] drm/i915/gem: Move stolen node into GEM object union Chris Wilson
2021-01-19 15:40 ` Matthew Auld
2021-01-19 14:49 ` [Intel-gfx] [PATCH 4/6] drm/i915/gem: Use shrinkable status for unknown swizzle quirks Chris Wilson
2021-01-19 16:13 ` Matthew Auld
2021-01-19 14:49 ` [Intel-gfx] [PATCH 5/6] drm/i915/gem: Make i915_gem_object_flush_write_domain() static Chris Wilson
2021-01-19 16:16 ` Matthew Auld
2021-01-19 14:49 ` [Intel-gfx] [PATCH 6/6] drm/i915/gem: Drop lru bumping on display unpinning Chris Wilson
2021-01-19 16:38 ` Matthew Auld
2021-01-19 17:02 ` Chris Wilson
2021-01-19 17:14 ` Matthew Auld
2021-01-19 15:30 ` [Intel-gfx] [PATCH 1/6] drm/i915/gem: Almagamate clflushes on suspend Matthew Auld
2021-01-19 15:37 ` Chris Wilson
2021-01-19 17:26 ` Matthew Auld [this message]
2021-01-19 21:50 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for series starting with [1/6] drm/i915/gem: Almagamate clflushes on suspend (rev2) Patchwork
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