From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: [PATCH 2/4] drm: handle compact dma scatter lists in drm_clflush_sg() Date: Sat, 9 Feb 2013 17:27:34 +0200 Message-ID: <1360423656-10816-3-git-send-email-imre.deak@intel.com> References: <1360423656-10816-1-git-send-email-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1360423656-10816-1-git-send-email-imre.deak@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: Rahul Sharma List-Id: intel-gfx@lists.freedesktop.org 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 --- drivers/gpu/drm/drm_cache.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c index a575cb2..40f380a 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 drm_sg_iter sg_iter; mb(); - for_each_sg(st->sgl, sg, st->nents, i) - drm_clflush_page(sg_page(sg)); + drm_for_each_sg_page(&sg_iter, st->sgl, 0) + drm_clflush_page(sg_iter.page); mb(); return; -- 1.7.10.4