diff mbox

drm/i915: Round up the watermark entries

Message ID 1279564262-28347-1-git-send-email-chris@chris-wilson.co.uk (mailing list archive)
State Deferred, archived
Headers show

Commit Message

Chris Wilson July 19, 2010, 6:31 p.m. UTC 
None
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f674b7a..5661f70 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2727,7 +2727,7 @@  static unsigned long intel_calculate_wm(unsigned long clock_in_khz,
 	 */
 	entries_required = ((clock_in_khz / 1000) * pixel_size * latency_ns) /
 		1000;
-	entries_required /= wm->cacheline_size;
+	entries_required = (entries_requied + wm->cacheline_size - 1) / wm->cacheline_size;
 
 	DRM_DEBUG_KMS("FIFO entries required for mode: %d\n", entries_required);