From e1f48ee58a90ddf84f514334b5d395a358596492 Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 2 Nov 2012 13:30:48 +0200 Subject: [PATCH] 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 Signed-off-by: Inki Dae Signed-off-by: Kyungmin Park --- 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 e08478f19f1a..23a57f4da478 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -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. diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index e4b8a8f741f7..e26d45577551 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -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. diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index e7fbb823fd8e..0d3ed282376c 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); } -- 2.20.1