From: Daniel Vetter <daniel@ffwll.ch>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 09/14] drm/i915: Remove check for conflicting relocation write-domains
Date: Mon, 3 Dec 2012 20:18:28 +0100 [thread overview]
Message-ID: <20121203191827.GO4384@phenom.ffwll.local> (raw)
In-Reply-To: <1354535352-3506-10-git-send-email-chris@chris-wilson.co.uk>
On Mon, Dec 03, 2012 at 11:49:07AM +0000, Chris Wilson wrote:
> Simply use the last write-domain set for the object in the batch,
> trusting userspace to have correctly flushed the caches between usage as
> a write target. This check dates back from the golden age of having only
> a single operation per batch with the kernel repeating it for each
> cliprect, and conflicts both with userspace trying to efficiently batch
> multiple operations and with reducing the kernel overhead of relocation
> processing.
>
> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This and the previous patch are merged to dinq, thanks.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
next prev parent reply other threads:[~2012-12-03 19:17 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-03 11:48 A bunch of random execbuffer patches Chris Wilson
2012-12-03 11:48 ` [PATCH 01/14] drm/i915: Move the get_pages assertions up to the right layer Chris Wilson
2012-12-03 11:49 ` [PATCH 02/14] drm/i915: Decouple the object from the unbound list before freeing pages Chris Wilson
2012-12-03 16:16 ` Daniel Vetter
2012-12-03 11:49 ` [PATCH 03/14] drm/i915: Bail if we attempt to allocate pages for a purged object Chris Wilson
2012-12-03 11:49 ` [PATCH 04/14] drm/i915: Defer the unbind for a fence change until the next get_fence() Chris Wilson
2012-12-03 11:49 ` [PATCH 05/14] drm/i915: Avoid forcing relocations through the mappable GTT or CPU Chris Wilson
2012-12-03 11:49 ` [PATCH 06/14] drm: Optionally create mm blocks from top-to-bottom Chris Wilson
2012-12-03 11:49 ` [PATCH 07/14] drm/i915: Preferentially allocate mappable GTT space to uncached bo Chris Wilson
2012-12-03 11:49 ` [PATCH 08/14] drm/i915: Tighten the checks for invalid relocation domains Chris Wilson
2012-12-03 11:49 ` [PATCH 09/14] drm/i915: Remove check for conflicting relocation write-domains Chris Wilson
2012-12-03 19:18 ` Daniel Vetter [this message]
2012-12-03 21:03 ` [PATCH] drm/i915: Reduce memory pressure during shrinker by preallocating swizzle pages Chris Wilson
2012-12-07 0:16 ` Daniel Vetter
2012-12-03 11:49 ` [PATCH 10/14] drm/i915: Take the handle idr spinlock once for looking up the exec objects Chris Wilson
2012-12-03 11:49 ` [PATCH 11/14] drm/i915: Move the execbuffer objects list from the stack into the tracker Chris Wilson
2012-12-03 11:49 ` [PATCH 12/14] drm/i915: Allow userspace to hint that the relocations were known Chris Wilson
2012-12-03 11:49 ` [PATCH 13/14] drm/i915: Use the reloc.handle as an index into the execbuffer array Chris Wilson
2012-12-03 11:49 ` [PATCH 14/14] drm/i915: Allow userspace to request an object at a specific offset Chris Wilson
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