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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-07-25 23:34:03 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-08-11 14:25:21 +0200 |
| commit | e8450f51a4b39cfe0878b4aee339820b2bfff240 (patch) | |
| tree | ee6cf4685f8524bf47cf49911d61ba21c77a5b33 /include | |
| parent | 2a0d7cfd9482ca4c10a4d8794791760a6a7ce40c (diff) | |
| download | talos-op-linux-e8450f51a4b39cfe0878b4aee339820b2bfff240.tar.gz talos-op-linux-e8450f51a4b39cfe0878b4aee339820b2bfff240.zip | |
drm/irq: Implement a generic vblank_wait function
As usual in both a crtc index and a struct drm_crtc * version.
The function assumes that no one drivers their display below 10Hz, and
it will complain if the vblank wait takes longer than that.
v2: Also check dev->max_vblank_counter since some drivers register a
fake get_vblank_counter function.
v3: Use drm_vblank_count instead of calling the low-level
->get_vblank_counter callback. That way we'll get the sw-cooked
counter for platforms without proper vblank support and so can ditch
the max_vblank_counter check again.
v4: Review from Michel Dänzer:
- Restore lost notes about v3:
- Spelling in kerneldoc.
- Inline wait_event condition.
- s/vblank_wait/wait_one_vblank/
Cc: Michel Dänzer <michel@daenzer.net>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drm/drmP.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h index d3d9be6b83ef..c2209178981f 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1327,6 +1327,8 @@ extern int drm_vblank_get(struct drm_device *dev, int crtc); extern void drm_vblank_put(struct drm_device *dev, int crtc); extern int drm_crtc_vblank_get(struct drm_crtc *crtc); extern void drm_crtc_vblank_put(struct drm_crtc *crtc); +extern void drm_wait_one_vblank(struct drm_device *dev, int crtc); +extern void drm_crtc_wait_one_vblank(struct drm_crtc *crtc); extern void drm_vblank_off(struct drm_device *dev, int crtc); extern void drm_vblank_on(struct drm_device *dev, int crtc); extern void drm_crtc_vblank_off(struct drm_crtc *crtc); |
