From: Rob Clark rob@ti.com
Because we don't have vblank hooked up via drm_irq (which is a bit awkward due to separation between omapdss (which knows the irq #) and omapdrm, for now use gettimeofday to have a semi-sane timestamp in the page-flip event. Otherwise apps like weston drm compositor, which use the timestamp in it's animations, get highly confused.
Signed-off-by: Rob Clark rob@ti.com --- drivers/staging/omapdrm/omap_crtc.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c index 13e3c7f..490a7f1 100644 --- a/drivers/staging/omapdrm/omap_crtc.c +++ b/drivers/staging/omapdrm/omap_crtc.c @@ -134,9 +134,19 @@ static void vblank_cb(void *arg)
/* wakeup userspace */ if (event) { + do_gettimeofday(&now); + spin_lock_irqsave(&dev->event_lock, flags); + /* TODO: we can't yet use the vblank time accounting, + * because omapdss lower layer is the one that knows + * the irq # and registers the handler, which more or + * less defeats how drm_irq works.. for now just fake + * the sequence number and use gettimeofday.. + * event->event.sequence = drm_vblank_count_and_time( dev, omap_crtc->id, &now); + */ + event->event.sequence = sequence++; event->event.tv_sec = now.tv_sec; event->event.tv_usec = now.tv_usec; list_add_tail(&event->base.link,