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authorDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-15 14:04:28 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-09-24 12:09:23 +0200
commit80c873b6b7b4de56d0771e3834ea71467937e506 (patch)
tree6110373980713c4922fb54cf54043e7cb6d2f028 /drivers/gpu
parentf2b50c1161590c3bcdbf3455fe4c575f1c1bd293 (diff)
downloadop-kernel-dev-80c873b6b7b4de56d0771e3834ea71467937e506.zip
op-kernel-dev-80c873b6b7b4de56d0771e3834ea71467937e506.tar.gz
drm: Improve debug output for drm_wait_one_vblank
This replicates what we've done in i915 in commit 31e4b89acbd7b19c9a8557e6e660a583a0b97daa Author: Damien Lespiau <damien.lespiau@intel.com> Date: Mon Aug 18 13:51:00 2014 +0100 drm/i915: Print the pipe on which the vblank wait times out to make sure that when we switch i915 to drm_wait_one_vblank that the debug output doesn't regress. Cc: Damien Lespiau <damien.lespiau@intel.com> Cc: Thomas Wood <thomas.wood@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_irq.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index e73cbda..5ef03c2 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -1077,7 +1077,7 @@ void drm_wait_one_vblank(struct drm_device *dev, int crtc)
u32 last;
ret = drm_vblank_get(dev, crtc);
- if (WARN_ON(ret))
+ if (WARN(ret, "vblank not available on crtc %i, ret=%i\n", crtc, ret))
return;
last = drm_vblank_count(dev, crtc);
@@ -1086,7 +1086,7 @@ void drm_wait_one_vblank(struct drm_device *dev, int crtc)
last != drm_vblank_count(dev, crtc),
msecs_to_jiffies(100));
- WARN_ON(ret == 0);
+ WARN(ret == 0, "vblank wait timed out on crtc %i\n", crtc);
drm_vblank_put(dev, crtc);
}
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