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drm/exynos: call drm_vblank_put for each queued flip event 

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>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Imre Deak 2012-11-02 13:30:48 +02:00 committed by Inki Dae
parent 85473328ba
commit e1f48ee58a
3 changed files with 3 additions and 24 deletions
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8
drivers/gpu/drm/exynos/exynos_drm_fimd.c
View File

@ -642,16 +642,10 @@ 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.

8
drivers/gpu/drm/exynos/exynos_drm_vidi.c
View File

@ -401,16 +401,10 @@ 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.

11
drivers/gpu/drm/exynos/exynos_mixer.c
View File

@ -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;
@ -902,15 +900,8 @@ 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);
}
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);
}