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| author | Imre Deak <imre.deak@intel.com> | 2013-02-18 18:28:01 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-03-19 09:50:22 +0100 |
| commit | f5ddf69736fb328800ccd1a06fe69ad2e830adbe (patch) | |
| tree | 50be97730f9ac64e10fc0fd444c265c1a4b1d44f /drivers/gpu/drm/drm_cache.c | |
| parent | Merge tag 'v3.9-rc3' into drm-intel-next-queued (diff) | |
| download | linux-f5ddf69736fb328800ccd1a06fe69ad2e830adbe.tar.xz linux-f5ddf69736fb328800ccd1a06fe69ad2e830adbe.zip | |
drm: handle compact dma scatter lists in drm_clflush_sg()
So far the assumption was that each scatter list entry contains a single
page. This might not hold in the future, when we'll introduce compact
scatter lists, so prepare for this here.
Reference: http://www.spinics.net/lists/dri-devel/msg33917.html
Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/drm_cache.c')
| -rw-r--r-- | drivers/gpu/drm/drm_cache.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index a575cb2e6bdb..bc8edbeca3fd 100644 --- a/drivers/gpu/drm/drm_cache.c +++ b/drivers/gpu/drm/drm_cache.c @@ -105,12 +105,11 @@ drm_clflush_sg(struct sg_table *st) { #if defined(CONFIG_X86) if (cpu_has_clflush) { - struct scatterlist *sg; - int i; + struct sg_page_iter sg_iter; mb(); - for_each_sg(st->sgl, sg, st->nents, i) - drm_clflush_page(sg_page(sg)); + for_each_sg_page(st->sgl, &sg_iter, st->nents, 0) + drm_clflush_page(sg_iter.page); mb(); return; |