From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: intel-gfx <intel-gfx@lists.freedesktop.org>
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 09/13] drm/i915: don't use gtt_pwrite on LLC cached objects
Date: Sun, 6 Nov 2011 20:13:56 +0100 [thread overview]
Message-ID: <1320606840-21132-10-git-send-email-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <1320606840-21132-1-git-send-email-daniel.vetter@ffwll.ch>
~120 µs instead fo ~210 µs to write 1mb on my snb. I like this.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/i915_gem.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0048917..8fd175c 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -842,6 +842,7 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
ret = i915_gem_phys_pwrite(dev, obj, args, file);
goto out;
} else if (obj->gtt_space &&
+ obj->cache_level == I915_CACHE_NONE &&
obj->base.write_domain != I915_GEM_DOMAIN_CPU) {
ret = i915_gem_object_pin(obj, 0, true);
if (ret)
--
1.7.6.4
next prev parent reply other threads:[~2011-11-06 19:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-06 19:13 [PATCH 00/13] pwrite/pread rework Daniel Vetter
2011-11-06 19:13 ` [PATCH 01/13] drm/i915: fall through pwrite_gtt_slow to the shmem slow path Daniel Vetter
2011-11-21 3:09 ` [Intel-gfx] " Ben Widawsky
2011-11-21 10:20 ` Chris Wilson
2011-11-06 19:13 ` [PATCH 02/13] drm/i915: rewrite shmem_pwrite_slow to use copy_from_user Daniel Vetter
2011-11-21 5:56 ` [Intel-gfx] " Ben Widawsky
2011-11-21 16:02 ` Daniel Vetter
2011-11-21 17:55 ` Ben Widawsky
2011-11-21 18:43 ` Ben Widawsky
2011-11-06 19:13 ` [PATCH 03/13] drm/i915: rewrite shmem_pread_slow to use copy_to_user Daniel Vetter
2011-11-06 19:13 ` [PATCH 04/13] drm/i915: merge shmem_pwrite slow&fast-path Daniel Vetter
2011-11-06 19:13 ` [PATCH 05/13] drm/i915: merge shmem_pread slow&fast-path Daniel Vetter
2011-11-06 19:13 ` [PATCH 06/13] drm: add helper to clflush a virtual address range Daniel Vetter
2011-11-21 19:46 ` [Intel-gfx] " Ben Widawsky
2011-11-06 19:13 ` [PATCH 07/13] drm/i915: move clflushing into shmem_pread Daniel Vetter
2011-11-06 19:13 ` [PATCH 08/13] drm/i915: kill ranged cpu read domain support Daniel Vetter
2011-11-06 19:13 ` Daniel Vetter [this message]
2011-11-06 21:16 ` [PATCH 09/13] drm/i915: don't use gtt_pwrite on LLC cached objects Chris Wilson
2011-11-06 22:19 ` Daniel Vetter
2011-11-06 19:13 ` [PATCH 10/13] drm/i915: don't call shmem_read_mapping unnecessarily Daniel Vetter
2011-11-06 19:13 ` [PATCH 11/13] mm: extend prefault helpers to fault in more than PAGE_SIZE Daniel Vetter
2011-11-06 22:24 ` Chris Wilson
2011-11-06 19:13 ` [PATCH 12/13] drm/i915: drop gtt slowpath Daniel Vetter
2011-11-06 19:14 ` [PATCH 13/13] drm/i915: don't clobber userspace memory before commiting to the pread Daniel Vetter
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