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From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Subject: [PATCH 12/16] drm/i915: use uncached writes in pwrite
Date: Sun, 25 Mar 2012 19:47:39 +0200	[thread overview]
Message-ID: <1332697663-31256-12-git-send-email-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <1332697663-31256-1-git-send-email-daniel.vetter@ffwll.ch>

It's around 20% faster.

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_gem.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ce53769..d413675 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -662,9 +662,9 @@ i915_gem_shmem_pwrite(struct drm_device *dev,
 			if (partial_cacheline_write)
 				drm_clflush_virt_range(vaddr + shmem_page_offset,
 						       page_length);
-			ret = __copy_from_user_inatomic(vaddr + shmem_page_offset,
-							user_data,
-							page_length);
+			ret = __copy_from_user_inatomic_nocache(vaddr + shmem_page_offset,
+								user_data,
+								page_length);
 			if (needs_clflush_after)
 				drm_clflush_virt_range(vaddr + shmem_page_offset,
 						       page_length);
-- 
1.7.7.6

  parent reply	other threads:[~2012-03-25 18:51 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-25 17:47 [PATCH 01/16] drm/i915: merge shmem_pwrite slow&fast-path Daniel Vetter
2012-03-25 17:47 ` [PATCH 02/16] drm/i915: merge shmem_pread slow&fast-path Daniel Vetter
2012-03-25 17:47 ` [PATCH 03/16] drm: add helper to clflush a virtual address range Daniel Vetter
2012-03-25 17:47 ` [PATCH 04/16] drm/i915: move clflushing into shmem_pread Daniel Vetter
2012-03-25 17:47 ` [PATCH 05/16] drm/i915: kill ranged cpu read domain support Daniel Vetter
2012-03-25 17:47 ` [PATCH 06/16] drm/i915: don't use gtt_pwrite on LLC cached objects Daniel Vetter
2012-03-25 17:47 ` [PATCH 07/16] drm/i915: don't call shmem_read_mapping unnecessarily Daniel Vetter
2012-03-26  9:10   ` Daniel Vetter
2012-03-25 17:47 ` [PATCH 08/16] drm/i915: drop gtt slowpath Daniel Vetter
2012-03-25 17:47 ` [PATCH 09/16] drm/i915: don't clobber userspace memory before commiting to the pread Daniel Vetter
2012-03-25 17:47 ` [PATCH 10/16] drm/i915: implement inline clflush for pwrite Daniel Vetter
2012-03-25 17:47 ` [PATCH 11/16] drm/i915: fall back to shmem pwrite when the buffer is not accessible Daniel Vetter
2012-03-25 17:47 ` Daniel Vetter [this message]
2012-03-25 17:47 ` [PATCH 13/16] drm/i915: extract copy helpers from shmem_pread|pwrite Daniel Vetter
2012-03-26  9:05   ` Chris Wilson
2012-03-25 17:47 ` [PATCH 14/16] mm: extend prefault helpers to fault in more than PAGE_SIZE Daniel Vetter
2012-03-26  9:09   ` Chris Wilson
2012-03-25 17:47 ` [PATCH 15/16] drm/i915: fixup in-line clflushing on bit17 swizzled bos Daniel Vetter
2012-03-26  9:18   ` Chris Wilson
2012-03-26  9:26     ` Daniel Vetter
2012-03-26 12:50       ` Chris Wilson
2012-03-25 17:47 ` [PATCH 16/16] drm/i915: mark pwrite/pread slowpaths with unlikely Daniel Vetter
2012-03-26  9:09   ` Chris Wilson
2012-03-27 11:42     ` Daniel Vetter

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