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| author | Rob Clark <rob@ti.com> | 2012-10-16 22:48:40 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-11-20 15:47:21 +1000 |
| commit | c6eefa1750ec0308956895027c3a79eee2ef9726 (patch) | |
| tree | 9bff1495c1be215c41d956578262575723c19895 /include/drm | |
| parent | edec4af4c3d6d225578290a9acc38c78147df55b (diff) | |
| download | linux-c6eefa1750ec0308956895027c3a79eee2ef9726.tar.gz linux-c6eefa1750ec0308956895027c3a79eee2ef9726.tar.bz2 linux-c6eefa1750ec0308956895027c3a79eee2ef9726.zip | |
drm: add drm_send_vblank_event() helper (v5)
A helper that drivers can use to send vblank event after a pageflip.
If the driver doesn't support proper vblank irq based time/seqn then
just pass -1 for the pipe # to get do_gettimestamp() behavior (since
there are a lot of drivers that don't use drm_vblank_count_and_time())
Also an internal send_vblank_event() helper for the various other code
paths within drm_irq that also need to send vblank events.
v1: original
v2: add back 'vblwait->reply.sequence = seq' which should not have
been deleted
v3: add WARN_ON() in case lock is not held and comments
v4: use WARN_ON_SMP() instead to fix issue with !SMP && !DEBUG_SPINLOCK
as pointed out by Marcin Slusarz
v5: update docbook
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
| -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 3fd82809b2d4..29eb23799aa4 100644 --- a/include/drm/drmP.h +++ b/include/drm/drmP.h @@ -1431,6 +1431,8 @@ extern int drm_vblank_wait(struct drm_device *dev, unsigned int *vbl_seq); extern u32 drm_vblank_count(struct drm_device *dev, int crtc); extern u32 drm_vblank_count_and_time(struct drm_device *dev, int crtc, struct timeval *vblanktime); +extern void drm_send_vblank_event(struct drm_device *dev, int crtc, + struct drm_pending_vblank_event *e); extern bool drm_handle_vblank(struct drm_device *dev, int crtc); extern int drm_vblank_get(struct drm_device *dev, int crtc); extern void drm_vblank_put(struct drm_device *dev, int crtc); |