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| author | Derek Foreman <derekf@osg.samsung.com> | 2016-11-24 21:11:55 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2016-11-30 02:39:45 +0300 |
| commit | 26fc78f6fef39b9d7a15def5e7e9826ff68303f4 (patch) | |
| tree | 7110f99026dbefcdb82ac1b46a71acd6714bfa37 /drivers/gpu/drm/vc4/vc4_drv.h | |
| parent | c778cc5df944291dcdb1ca7a6bb781fbc22550c5 (diff) | |
| download | linux-26fc78f6fef39b9d7a15def5e7e9826ff68303f4.tar.xz | |
drm/vc4: Fix race between page flip completion event and clean-up
There was a small window where a userspace program could submit
a pageflip after receiving a pageflip completion event yet still
receive EBUSY.
Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_drv.h')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_drv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h index fef172804345..b3064e2e79c1 100644 --- a/drivers/gpu/drm/vc4/vc4_drv.h +++ b/drivers/gpu/drm/vc4/vc4_drv.h @@ -442,6 +442,7 @@ int vc4_bo_stats_debugfs(struct seq_file *m, void *arg); extern struct platform_driver vc4_crtc_driver; int vc4_enable_vblank(struct drm_device *dev, unsigned int crtc_id); void vc4_disable_vblank(struct drm_device *dev, unsigned int crtc_id); +bool vc4_event_pending(struct drm_crtc *crtc); int vc4_crtc_debugfs_regs(struct seq_file *m, void *arg); int vc4_crtc_get_scanoutpos(struct drm_device *dev, unsigned int crtc_id, unsigned int flags, int *vpos, int *hpos, |