diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-04 01:33:49 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-04-04 01:33:49 +0200 |
| commit | bce5669be3a8946952258a064ef26defeb887138 (patch) | |
| tree | 117386b9909882c000f822011c5ea6fdcbab3273 /drivers/gpu/drm/i915/intel_display.c | |
| parent | Merge branches 'amba', 'fixes', 'misc', 'mmci', 'unstable/omap-dma' and 'unst... (diff) | |
| parent | Merge branch 'uprobes-v7' of git://git.linaro.org/people/dave.long/linux into... (diff) | |
| download | linux-bce5669be3a8946952258a064ef26defeb887138.tar.xz linux-bce5669be3a8946952258a064ef26defeb887138.zip | |
Merge branch 'devel-stable' into for-next
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9fa24347963a..4c1672809493 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -8586,6 +8586,20 @@ static int intel_gen7_queue_flip(struct drm_device *dev, if (ring->id == RCS) len += 6; + /* + * BSpec MI_DISPLAY_FLIP for IVB: + * "The full packet must be contained within the same cache line." + * + * Currently the LRI+SRM+MI_DISPLAY_FLIP all fit within the same + * cacheline, if we ever start emitting more commands before + * the MI_DISPLAY_FLIP we may need to first emit everything else, + * then do the cacheline alignment, and finally emit the + * MI_DISPLAY_FLIP. + */ + ret = intel_ring_cacheline_align(ring); + if (ret) + goto err_unpin; + ret = intel_ring_begin(ring, len); if (ret) goto err_unpin; |