diff options
| author | Rob Clark <robdclark@gmail.com> | 2014-04-22 12:27:28 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-04-25 08:58:23 -0400 |
| commit | 7d8d9f670513593377cd1442f987ce03a64ba55d (patch) | |
| tree | 1961f2cd4a040a0525fb806196ddce33360a0ab9 /drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c | |
| parent | 96673ecbd7f638c0865045377a44f53cd8606850 (diff) | |
| download | blackbird-obmc-linux-7d8d9f670513593377cd1442f987ce03a64ba55d.tar.gz blackbird-obmc-linux-7d8d9f670513593377cd1442f987ce03a64ba55d.zip | |
drm/msm/mdp4: cure for the cursor blues (v2)
The hw cursor is relatively adept at triggering underflows, which
manifest as a "blue flash" (since blue is configured as the underflow
color). Juggle a few things around to tighten up the timing for setting
cursor registers in DONE irq.
And most importantly, don't ever disable the hw cursor. Instead flip it
to a blank/empty cursor. This seems far more reliable, as even simply
clearing the cursor-enable bit (with no other updates in previous/
following frames) can in some cases cause underflow.
v1: original
v2: add missing locking spotted by Micah
Cc: Micah Richert <richert@braincorporation.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c index c740ccd1cc67..8edd531cb621 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c @@ -70,12 +70,12 @@ irqreturn_t mdp4_irq(struct msm_kms *kms) VERB("status=%08x", status); + mdp_dispatch_irqs(mdp_kms, status); + for (id = 0; id < priv->num_crtcs; id++) if (status & mdp4_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id); - mdp_dispatch_irqs(mdp_kms, status); - return IRQ_HANDLED; } |
