It's guaranteed that for each event on pageflip_event_list we have called drm_vblank_get() - see exynos_drm_crtc_page_flip() - so checking for this is redundant.
Also we need to call drm_vblank_put() for each event on the list, not only once, otherwise we'd leak vblank references if there are multiple events on the list.
Signed-off-by: Imre Deak imre.deak@intel.com --- drivers/gpu/drm/exynos/exynos_drm_fimd.c | 8 +------- drivers/gpu/drm/exynos/exynos_drm_vidi.c | 8 +------- drivers/gpu/drm/exynos/exynos_mixer.c | 11 +---------- 3 files changed, 3 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 130a2b5..e69b7c4 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -642,17 +642,11 @@ static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc)
list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); + drm_vblank_put(drm_dev, crtc); }
if (is_checked) { /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - /* * don't off vblank if vblank_disable_allowed is 1, * because vblank would be off by timer handler. */ diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index e4b8a8f..e26d455 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -401,17 +401,11 @@ static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc)
list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); + drm_vblank_put(drm_dev, crtc); }
if (is_checked) { /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - - /* * don't off vblank if vblank_disable_allowed is 1, * because vblank would be off by timer handler. */ diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index 614b2e9..5720e82 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -884,7 +884,6 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) struct drm_pending_vblank_event *e, *t; struct timeval now; unsigned long flags; - bool is_checked = false;
spin_lock_irqsave(&drm_dev->event_lock, flags);
@@ -894,7 +893,6 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc) if (crtc != e->pipe) continue;
- is_checked = true; do_gettimeofday(&now); e->event.sequence = 0; e->event.tv_sec = now.tv_sec; @@ -902,16 +900,9 @@ static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc)
list_move_tail(&e->base.link, &e->base.file_priv->event_list); wake_up_interruptible(&e->base.file_priv->event_wait); + drm_vblank_put(drm_dev, crtc); }
- if (is_checked) - /* - * call drm_vblank_put only in case that drm_vblank_get was - * called. - */ - if (atomic_read(&drm_dev->vblank_refcount[crtc]) > 0) - drm_vblank_put(drm_dev, crtc); - spin_unlock_irqrestore(&drm_dev->event_lock, flags); }