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[U-Boot,12/20] video: Use cache-alignment in video_sync()

Message ID 1477946376-29471-13-git-send-email-sjg@chromium.org
State Accepted
Commit 7981394e550094bbbb2eb5e62065fa14c2ca77b0
Delegated to: Simon Glass
Headers show

Commit Message

Simon Glass Oct. 31, 2016, 8:39 p.m. UTC 
Sometimes the frame buffer is not a multiple of the cache line size.
Adjust the cache-flushing code to avoid cache warnings/errors in this
case.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

 drivers/video/video-uclass.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 11ca793..3036e3a 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -117,7 +117,8 @@  void video_sync(struct udevice *vid)
 
 	if (priv->flush_dcache) {
 		flush_dcache_range((ulong)priv->fb,
-				   (ulong)priv->fb + priv->fb_size);
+				   ALIGN((ulong)priv->fb + priv->fb_size,
+					 CONFIG_SYS_CACHELINE_SIZE));
 	}
 #elif defined(CONFIG_VIDEO_SANDBOX_SDL)
 	struct video_priv *priv = dev_get_uclass_priv(vid);