drm/exynos: move finish page flip to a common place

This patch implements the exynos_drm_crtc_finish_pageflip in
exynos_drm_crtc.c. This avoids the duplication of same code
in mixer, fimd and vidi.
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Stephane Marchesin <marcheu@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

drivers/gpu/drm/exynos/exynos_drm_crtc.c

@@ -393,3 +393,33 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc)
 	exynos_drm_fn_encoder(private->crtc[crtc], &crtc,
 			exynos_drm_disable_vblank);
 }
+
+void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc)
+{
+	struct exynos_drm_private *dev_priv = dev->dev_private;
+	struct drm_pending_vblank_event *e, *t;
+	struct timeval now;
+	unsigned long flags;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	spin_lock_irqsave(&dev->event_lock, flags);
+
+	list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
+			base.link) {
+		/* if event's pipe isn't same as crtc then ignore it. */
+		if (crtc != e->pipe)
+			continue;
+
+		do_gettimeofday(&now);
+		e->event.sequence = 0;
+		e->event.tv_sec = now.tv_sec;
+		e->event.tv_usec = now.tv_usec;
+
+		list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+		wake_up_interruptible(&e->base.file_priv->event_wait);
+		drm_vblank_put(dev, crtc);
+	}
+
+	spin_unlock_irqrestore(&dev->event_lock, flags);
+}

drivers/gpu/drm/exynos/exynos_drm_crtc.h

@@ -18,5 +18,6 @@
 int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr);
 int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc);
 void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc);
+void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int crtc);
 
 #endif

drivers/gpu/drm/exynos/exynos_drm_fimd.c

@@ -663,34 +663,6 @@ static struct exynos_drm_manager fimd_manager = {
 	.display_ops	= &fimd_display_ops,
 };
 
-static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc)
-{
-	struct exynos_drm_private *dev_priv = drm_dev->dev_private;
-	struct drm_pending_vblank_event *e, *t;
-	struct timeval now;
-	unsigned long flags;
-
-	spin_lock_irqsave(&drm_dev->event_lock, flags);
-
-	list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
-			base.link) {
-		/* if event's pipe isn't same as crtc then ignore it. */
-		if (crtc != e->pipe)
-			continue;
-
-		do_gettimeofday(&now);
-		e->event.sequence = 0;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-
-		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);
-	}
-
-	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
-}
-
 static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
 {
 	struct fimd_context *ctx = (struct fimd_context *)dev_id;
@@ -710,7 +682,7 @@ static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
 		goto out;
 
 	drm_handle_vblank(drm_dev, manager->pipe);
-	fimd_finish_pageflip(drm_dev, manager->pipe);
+	exynos_drm_crtc_finish_pageflip(drm_dev, manager->pipe);
 
 	/* set wait vsync event to zero and wake up queue. */
 	if (atomic_read(&ctx->wait_vsync_event)) {

drivers/gpu/drm/exynos/exynos_drm_vidi.c

@@ -372,34 +372,6 @@ static struct exynos_drm_manager vidi_manager = {
 	.display_ops	= &vidi_display_ops,
 };
 
-static void vidi_finish_pageflip(struct drm_device *drm_dev, int crtc)
-{
-	struct exynos_drm_private *dev_priv = drm_dev->dev_private;
-	struct drm_pending_vblank_event *e, *t;
-	struct timeval now;
-	unsigned long flags;
-
-	spin_lock_irqsave(&drm_dev->event_lock, flags);
-
-	list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
-			base.link) {
-		/* if event's pipe isn't same as crtc then ignore it. */
-		if (crtc != e->pipe)
-			continue;
-
-		do_gettimeofday(&now);
-		e->event.sequence = 0;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-
-		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);
-	}
-
-	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
-}
-
 static void vidi_fake_vblank_handler(struct work_struct *work)
 {
 	struct vidi_context *ctx = container_of(work, struct vidi_context,
@@ -424,7 +396,7 @@ static void vidi_fake_vblank_handler(struct work_struct *work)
 
 	mutex_unlock(&ctx->lock);
 
-	vidi_finish_pageflip(subdrv->drm_dev, manager->pipe);
+	exynos_drm_crtc_finish_pageflip(subdrv->drm_dev, manager->pipe);
 }
 
 static int vidi_subdrv_probe(struct drm_device *drm_dev, struct device *dev)

drivers/gpu/drm/exynos/exynos_mixer.c

@@ -35,6 +35,7 @@
 #include <drm/exynos_drm.h>
 
 #include "exynos_drm_drv.h"
+#include "exynos_drm_crtc.h"
 #include "exynos_drm_hdmi.h"
 #include "exynos_drm_iommu.h"
 
@@ -949,35 +950,6 @@ static struct exynos_mixer_ops mixer_ops = {
 	.win_disable		= mixer_win_disable,
 };
 
-/* for pageflip event */
-static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc)
-{
-	struct exynos_drm_private *dev_priv = drm_dev->dev_private;
-	struct drm_pending_vblank_event *e, *t;
-	struct timeval now;
-	unsigned long flags;
-
-	spin_lock_irqsave(&drm_dev->event_lock, flags);
-
-	list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
-			base.link) {
-		/* if event's pipe isn't same as crtc then ignore it. */
-		if (crtc != e->pipe)
-			continue;
-
-		do_gettimeofday(&now);
-		e->event.sequence = 0;
-		e->event.tv_sec = now.tv_sec;
-		e->event.tv_usec = now.tv_usec;
-
-		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);
-	}
-
-	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
-}
-
 static irqreturn_t mixer_irq_handler(int irq, void *arg)
 {
 	struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg;
@@ -1006,7 +978,8 @@ static irqreturn_t mixer_irq_handler(int irq, void *arg)
 		}
 
 		drm_handle_vblank(drm_hdmi_ctx->drm_dev, ctx->pipe);
-		mixer_finish_pageflip(drm_hdmi_ctx->drm_dev, ctx->pipe);
+		exynos_drm_crtc_finish_pageflip(drm_hdmi_ctx->drm_dev,
+				ctx->pipe);
 
 		/* set wait vsync event to zero and wake up queue. */
 		if (atomic_read(&ctx->wait_vsync_event)) {