[PATCH 1/6] drm/exynos: remove leftover code using event_list

[PATCH 1/6] drm/exynos: remove leftover code using event_list

[Gustavo Padovan]

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

The drm_file event_list hasn't been used anymore by exynos, so we don't
need any code to clean it.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_drv.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 25ba362..b60fd9b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -256,11 +256,6 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 		}
 	}
 
-	/* Release all events handled by page flip handler but not freed. */
-	list_for_each_entry_safe(e, et, &file->event_list, link) {
-		list_del(&e->link);
-		e->destroy(e);
-	}
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
 	kfree(file->driver_priv);
-- 
1.9.3

[PATCH 2/6] drm/exynos: track vblank events on a per crtc basis

[Gustavo Padovan]

From: Mandeep Singh Baines <msb@chromium.org>

The goal of the change is to make sure we send the vblank event on the
current vblank. My hope is to fix any races that might be causing flicker.
After this change I only see a flicker in the transition plymouth and
X11.

Simplified the code by tracking vblank events on a per-crtc basis. This
allowed me to remove all error paths from the callback. It also allowed
me to remove the vblank wait from the callback.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c | 39 ++++++++------------------------
 drivers/gpu/drm/exynos/exynos_drm_drv.c  | 19 ----------------
 drivers/gpu/drm/exynos/exynos_drm_drv.h  |  6 ++---
 3 files changed, 12 insertions(+), 52 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index a85c451..b1f1b25 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -34,9 +34,8 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
 	if (mode > DRM_MODE_DPMS_ON) {
 		/* wait for the completion of page flip. */
 		if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
-				!atomic_read(&exynos_crtc->pending_flip),
-				HZ/20))
-			atomic_set(&exynos_crtc->pending_flip, 0);
+				(exynos_crtc->event == NULL), HZ/20))
+			exynos_crtc->event = NULL;
 		drm_crtc_vblank_off(crtc);
 	}
 
@@ -166,7 +165,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 				     uint32_t page_flip_flags)
 {
 	struct drm_device *dev = crtc->dev;
-	struct exynos_drm_private *dev_priv = dev->dev_private;
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 	struct drm_framebuffer *old_fb = crtc->primary->fb;
 	unsigned int crtc_w, crtc_h;
@@ -194,12 +192,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 			goto out;
 		}
 
-		spin_lock_irq(&dev->event_lock);
-		list_add_tail(&event->base.link,
-				&dev_priv->pageflip_event_list);
-		atomic_set(&exynos_crtc->pending_flip, 1);
-		spin_unlock_irq(&dev->event_lock);
-
 		crtc->primary->fb = fb;
 		crtc_w = fb->width - crtc->x;
 		crtc_h = fb->height - crtc->y;
@@ -209,14 +201,12 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 		if (ret) {
 			crtc->primary->fb = old_fb;
 
-			spin_lock_irq(&dev->event_lock);
 			drm_vblank_put(dev, exynos_crtc->pipe);
-			list_del(&event->base.link);
-			atomic_set(&exynos_crtc->pending_flip, 0);
-			spin_unlock_irq(&dev->event_lock);
 
 			goto out;
 		}
+
+		exynos_crtc->event = event;
 	}
 out:
 	mutex_unlock(&dev->struct_mutex);
@@ -315,7 +305,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 		return ERR_PTR(-ENOMEM);
 
 	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
-	atomic_set(&exynos_crtc->pending_flip, 0);
 
 	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
 	exynos_crtc->pipe = pipe;
@@ -382,27 +371,19 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
 void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
 {
 	struct exynos_drm_private *dev_priv = dev->dev_private;
-	struct drm_pending_vblank_event *e, *t;
 	struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
-	unsigned long flags;
 
-	spin_lock_irqsave(&dev->event_lock, flags);
+	if (exynos_crtc->event) {
 
-	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 (pipe != e->pipe)
-			continue;
-
-		list_del(&e->base.link);
-		drm_send_vblank_event(dev, -1, e);
+		spin_lock_irq(&dev->event_lock);
+		drm_send_vblank_event(dev, -1, exynos_crtc->event);
 		drm_vblank_put(dev, pipe);
-		atomic_set(&exynos_crtc->pending_flip, 0);
 		wake_up(&exynos_crtc->pending_flip_queue);
-	}
+		spin_unlock_irq(&dev->event_lock);
 
-	spin_unlock_irqrestore(&dev->event_lock, flags);
+		exynos_crtc->event = NULL;
+	}
 }
 
 void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index b60fd9b..731cdbc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -61,7 +61,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 	if (!private)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&private->pageflip_event_list);
 	dev_set_drvdata(dev->dev, dev);
 	dev->dev_private = (void *)private;
 
@@ -237,27 +236,9 @@ static void exynos_drm_preclose(struct drm_device *dev,
 
 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 {
-	struct exynos_drm_private *private = dev->dev_private;
-	struct drm_pending_vblank_event *v, *vt;
-	struct drm_pending_event *e, *et;
-	unsigned long flags;
-
 	if (!file->driver_priv)
 		return;
 
-	/* Release all events not unhandled by page flip handler. */
-	spin_lock_irqsave(&dev->event_lock, flags);
-	list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
-			base.link) {
-		if (v->base.file_priv == file) {
-			list_del(&v->base.link);
-			drm_vblank_put(dev, v->pipe);
-			v->base.destroy(&v->base);
-		}
-	}
-
-	spin_unlock_irqrestore(&dev->event_lock, flags);
-
 	kfree(file->driver_priv);
 	file->driver_priv = NULL;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index d490b49..7411af2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -216,6 +216,7 @@ enum exynos_crtc_mode {
  *	this pipe value.
  * @dpms: store the crtc dpms value
  * @mode: store the crtc mode value
+ * @event: vblank event that is currently queued for flip
  * @ops: pointer to callbacks for exynos drm specific functionality
  * @ctx: A pointer to the crtc's implementation specific context
  */
@@ -226,7 +227,7 @@ struct exynos_drm_crtc {
 	unsigned int			dpms;
 	enum exynos_crtc_mode		mode;
 	wait_queue_head_t		pending_flip_queue;
-	atomic_t			pending_flip;
+	struct drm_pending_vblank_event	*event;
 	struct exynos_drm_crtc_ops	*ops;
 	void				*ctx;
 };
@@ -256,9 +257,6 @@ struct drm_exynos_file_private {
 struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
 
-	/* list head for new event to be added. */
-	struct list_head pageflip_event_list;
-
 	/*
 	 * created crtc object would be contained at this array and
 	 * this array is used to be aware of which crtc did it request vblank.
-- 
1.9.3

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 2/6] drm/exynos: track vblank events on a per crtc basis

[Daniel Stone]

Hi,

On 23 January 2015 at 12:42, Gustavo Padovan <gustavo@padovan.org> wrote:
>  void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
>  {
>         struct exynos_drm_private *dev_priv = dev->dev_private;
> -       struct drm_pending_vblank_event *e, *t;
>         struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
>         struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
> -       unsigned long flags;
>
> -       spin_lock_irqsave(&dev->event_lock, flags);
> +       if (exynos_crtc->event) {
>
> -       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 (pipe != e->pipe)
> -                       continue;
> -
> -               list_del(&e->base.link);
> -               drm_send_vblank_event(dev, -1, e);
> +               spin_lock_irq(&dev->event_lock);
> +               drm_send_vblank_event(dev, -1, exynos_crtc->event);
>                 drm_vblank_put(dev, pipe);
> -               atomic_set(&exynos_crtc->pending_flip, 0);
>                 wake_up(&exynos_crtc->pending_flip_queue);
> -       }
> +               spin_unlock_irq(&dev->event_lock);
>
> -       spin_unlock_irqrestore(&dev->event_lock, flags);
> +               exynos_crtc->event = NULL;
> +       }
>  }

Doesn't this need to hold the CRTC lock to not race with, e.g, the
page_flip caller? This gets called from IRQ context though, so might
need conversion to soft-IRQ to do so, or another per-CRTC spinlock
just to protect the event.

Cheers,
Daniel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 2/6] drm/exynos: track vblank events on a per crtc basis

[Daniel Vetter]

On Tue, Jan 27, 2015 at 12:59:15PM +0000, Daniel Stone wrote:
> Hi,
> 
> On 23 January 2015 at 12:42, Gustavo Padovan <gustavo@padovan.org> wrote:
> >  void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
> >  {
> >         struct exynos_drm_private *dev_priv = dev->dev_private;
> > -       struct drm_pending_vblank_event *e, *t;
> >         struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
> >         struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
> > -       unsigned long flags;
> >
> > -       spin_lock_irqsave(&dev->event_lock, flags);
> > +       if (exynos_crtc->event) {
> >
> > -       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 (pipe != e->pipe)
> > -                       continue;
> > -
> > -               list_del(&e->base.link);
> > -               drm_send_vblank_event(dev, -1, e);
> > +               spin_lock_irq(&dev->event_lock);
> > +               drm_send_vblank_event(dev, -1, exynos_crtc->event);
> >                 drm_vblank_put(dev, pipe);
> > -               atomic_set(&exynos_crtc->pending_flip, 0);
> >                 wake_up(&exynos_crtc->pending_flip_queue);
> > -       }
> > +               spin_unlock_irq(&dev->event_lock);
> >
> > -       spin_unlock_irqrestore(&dev->event_lock, flags);
> > +               exynos_crtc->event = NULL;
> > +       }
> >  }
> 
> Doesn't this need to hold the CRTC lock to not race with, e.g, the
> page_flip caller? This gets called from IRQ context though, so might
> need conversion to soft-IRQ to do so, or another per-CRTC spinlock
> just to protect the event.

dev->even_lock should be enough, but I suspect that lock also protects
exynos_crtc->event (at least that's the case in i915.ko). So would need to
be moved out of the if block again.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch

[PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Gustavo Padovan]

From: Mandeep Singh Baines <msb@chromium.org>

The goal of the change is to make sure we send the vblank event on the
current vblank. My hope is to fix any races that might be causing flicker.
After this change I only see a flicker in the transition plymouth and
X11.

Simplified the code by tracking vblank events on a per-crtc basis. This
allowed me to remove all error paths from the callback. It also allowed
me to remove the vblank wait from the callback.

Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c | 29 +++++++----------------------
 drivers/gpu/drm/exynos/exynos_drm_drv.c  | 19 -------------------
 drivers/gpu/drm/exynos/exynos_drm_drv.h  |  6 ++----
 3 files changed, 9 insertions(+), 45 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index a85c451..91c175b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -34,9 +34,8 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
 	if (mode > DRM_MODE_DPMS_ON) {
 		/* wait for the completion of page flip. */
 		if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
-				!atomic_read(&exynos_crtc->pending_flip),
-				HZ/20))
-			atomic_set(&exynos_crtc->pending_flip, 0);
+				(exynos_crtc->event == NULL), HZ/20))
+			exynos_crtc->event = NULL;
 		drm_crtc_vblank_off(crtc);
 	}
 
@@ -166,7 +165,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 				     uint32_t page_flip_flags)
 {
 	struct drm_device *dev = crtc->dev;
-	struct exynos_drm_private *dev_priv = dev->dev_private;
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 	struct drm_framebuffer *old_fb = crtc->primary->fb;
 	unsigned int crtc_w, crtc_h;
@@ -195,9 +193,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 		}
 
 		spin_lock_irq(&dev->event_lock);
-		list_add_tail(&event->base.link,
-				&dev_priv->pageflip_event_list);
-		atomic_set(&exynos_crtc->pending_flip, 1);
+		exynos_crtc->event = event;
 		spin_unlock_irq(&dev->event_lock);
 
 		crtc->primary->fb = fb;
@@ -209,11 +205,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
 		if (ret) {
 			crtc->primary->fb = old_fb;
 
-			spin_lock_irq(&dev->event_lock);
 			drm_vblank_put(dev, exynos_crtc->pipe);
-			list_del(&event->base.link);
-			atomic_set(&exynos_crtc->pending_flip, 0);
-			spin_unlock_irq(&dev->event_lock);
 
 			goto out;
 		}
@@ -315,7 +307,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 		return ERR_PTR(-ENOMEM);
 
 	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
-	atomic_set(&exynos_crtc->pending_flip, 0);
 
 	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
 	exynos_crtc->pipe = pipe;
@@ -382,26 +373,20 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
 void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
 {
 	struct exynos_drm_private *dev_priv = dev->dev_private;
-	struct drm_pending_vblank_event *e, *t;
 	struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->event_lock, flags);
+	if (exynos_crtc->event) {
 
-	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 (pipe != e->pipe)
-			continue;
-
-		list_del(&e->base.link);
-		drm_send_vblank_event(dev, -1, e);
+		drm_send_vblank_event(dev, -1, exynos_crtc->event);
 		drm_vblank_put(dev, pipe);
-		atomic_set(&exynos_crtc->pending_flip, 0);
 		wake_up(&exynos_crtc->pending_flip_queue);
+
 	}
 
+	exynos_crtc->event = NULL;
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 }
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index b60fd9b..731cdbc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -61,7 +61,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 	if (!private)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&private->pageflip_event_list);
 	dev_set_drvdata(dev->dev, dev);
 	dev->dev_private = (void *)private;
 
@@ -237,27 +236,9 @@ static void exynos_drm_preclose(struct drm_device *dev,
 
 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 {
-	struct exynos_drm_private *private = dev->dev_private;
-	struct drm_pending_vblank_event *v, *vt;
-	struct drm_pending_event *e, *et;
-	unsigned long flags;
-
 	if (!file->driver_priv)
 		return;
 
-	/* Release all events not unhandled by page flip handler. */
-	spin_lock_irqsave(&dev->event_lock, flags);
-	list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
-			base.link) {
-		if (v->base.file_priv == file) {
-			list_del(&v->base.link);
-			drm_vblank_put(dev, v->pipe);
-			v->base.destroy(&v->base);
-		}
-	}
-
-	spin_unlock_irqrestore(&dev->event_lock, flags);
-
 	kfree(file->driver_priv);
 	file->driver_priv = NULL;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index d490b49..7411af2 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -216,6 +216,7 @@ enum exynos_crtc_mode {
  *	this pipe value.
  * @dpms: store the crtc dpms value
  * @mode: store the crtc mode value
+ * @event: vblank event that is currently queued for flip
  * @ops: pointer to callbacks for exynos drm specific functionality
  * @ctx: A pointer to the crtc's implementation specific context
  */
@@ -226,7 +227,7 @@ struct exynos_drm_crtc {
 	unsigned int			dpms;
 	enum exynos_crtc_mode		mode;
 	wait_queue_head_t		pending_flip_queue;
-	atomic_t			pending_flip;
+	struct drm_pending_vblank_event	*event;
 	struct exynos_drm_crtc_ops	*ops;
 	void				*ctx;
 };
@@ -256,9 +257,6 @@ struct drm_exynos_file_private {
 struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
 
-	/* list head for new event to be added. */
-	struct list_head pageflip_event_list;
-
 	/*
 	 * created crtc object would be contained at this array and
 	 * this array is used to be aware of which crtc did it request vblank.
-- 
1.9.3

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Joonyoung Shim]

+Cc Inki,

Hi,

On 01/30/2015 02:10 AM, Gustavo Padovan wrote:
> From: Mandeep Singh Baines <msb@chromium.org>
> 
> The goal of the change is to make sure we send the vblank event on the
> current vblank. My hope is to fix any races that might be causing flicker.
> After this change I only see a flicker in the transition plymouth and
> X11.
> 
> Simplified the code by tracking vblank events on a per-crtc basis. This
> allowed me to remove all error paths from the callback. It also allowed
> me to remove the vblank wait from the callback.
> 
> Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 29 +++++++----------------------
>  drivers/gpu/drm/exynos/exynos_drm_drv.c  | 19 -------------------
>  drivers/gpu/drm/exynos/exynos_drm_drv.h  |  6 ++----
>  3 files changed, 9 insertions(+), 45 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> index a85c451..91c175b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> @@ -34,9 +34,8 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
>  	if (mode > DRM_MODE_DPMS_ON) {
>  		/* wait for the completion of page flip. */
>  		if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
> -				!atomic_read(&exynos_crtc->pending_flip),
> -				HZ/20))
> -			atomic_set(&exynos_crtc->pending_flip, 0);
> +				(exynos_crtc->event == NULL), HZ/20))
> +			exynos_crtc->event = NULL;
>  		drm_crtc_vblank_off(crtc);
>  	}
>  
> @@ -166,7 +165,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
>  				     uint32_t page_flip_flags)
>  {
>  	struct drm_device *dev = crtc->dev;
> -	struct exynos_drm_private *dev_priv = dev->dev_private;
>  	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
>  	struct drm_framebuffer *old_fb = crtc->primary->fb;
>  	unsigned int crtc_w, crtc_h;
> @@ -195,9 +193,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
>  		}
>  
>  		spin_lock_irq(&dev->event_lock);
> -		list_add_tail(&event->base.link,
> -				&dev_priv->pageflip_event_list);
> -		atomic_set(&exynos_crtc->pending_flip, 1);
> +		exynos_crtc->event = event;

We will lose unfinished prior events by this change. That's why we use
linked list.

Thanks.

>  		spin_unlock_irq(&dev->event_lock);
>  
>  		crtc->primary->fb = fb;
> @@ -209,11 +205,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
>  		if (ret) {
>  			crtc->primary->fb = old_fb;
>  
> -			spin_lock_irq(&dev->event_lock);
>  			drm_vblank_put(dev, exynos_crtc->pipe);
> -			list_del(&event->base.link);
> -			atomic_set(&exynos_crtc->pending_flip, 0);
> -			spin_unlock_irq(&dev->event_lock);
>  
>  			goto out;
>  		}
> @@ -315,7 +307,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
>  		return ERR_PTR(-ENOMEM);
>  
>  	init_waitqueue_head(&exynos_crtc->pending_flip_queue);
> -	atomic_set(&exynos_crtc->pending_flip, 0);
>  
>  	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
>  	exynos_crtc->pipe = pipe;
> @@ -382,26 +373,20 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe)
>  void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe)
>  {
>  	struct exynos_drm_private *dev_priv = dev->dev_private;
> -	struct drm_pending_vblank_event *e, *t;
>  	struct drm_crtc *drm_crtc = dev_priv->crtc[pipe];
>  	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(drm_crtc);
>  	unsigned long flags;
>  
>  	spin_lock_irqsave(&dev->event_lock, flags);
> +	if (exynos_crtc->event) {
>  
> -	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 (pipe != e->pipe)
> -			continue;
> -
> -		list_del(&e->base.link);
> -		drm_send_vblank_event(dev, -1, e);
> +		drm_send_vblank_event(dev, -1, exynos_crtc->event);
>  		drm_vblank_put(dev, pipe);
> -		atomic_set(&exynos_crtc->pending_flip, 0);
>  		wake_up(&exynos_crtc->pending_flip_queue);
> +
>  	}
>  
> +	exynos_crtc->event = NULL;
>  	spin_unlock_irqrestore(&dev->event_lock, flags);
>  }
>  
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index b60fd9b..731cdbc 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -61,7 +61,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
>  	if (!private)
>  		return -ENOMEM;
>  
> -	INIT_LIST_HEAD(&private->pageflip_event_list);
>  	dev_set_drvdata(dev->dev, dev);
>  	dev->dev_private = (void *)private;
>  
> @@ -237,27 +236,9 @@ static void exynos_drm_preclose(struct drm_device *dev,
>  
>  static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
>  {
> -	struct exynos_drm_private *private = dev->dev_private;
> -	struct drm_pending_vblank_event *v, *vt;
> -	struct drm_pending_event *e, *et;
> -	unsigned long flags;
> -
>  	if (!file->driver_priv)
>  		return;
>  
> -	/* Release all events not unhandled by page flip handler. */
> -	spin_lock_irqsave(&dev->event_lock, flags);
> -	list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
> -			base.link) {
> -		if (v->base.file_priv == file) {
> -			list_del(&v->base.link);
> -			drm_vblank_put(dev, v->pipe);
> -			v->base.destroy(&v->base);
> -		}
> -	}
> -
> -	spin_unlock_irqrestore(&dev->event_lock, flags);
> -
>  	kfree(file->driver_priv);
>  	file->driver_priv = NULL;
>  }
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> index d490b49..7411af2 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> @@ -216,6 +216,7 @@ enum exynos_crtc_mode {
>   *	this pipe value.
>   * @dpms: store the crtc dpms value
>   * @mode: store the crtc mode value
> + * @event: vblank event that is currently queued for flip
>   * @ops: pointer to callbacks for exynos drm specific functionality
>   * @ctx: A pointer to the crtc's implementation specific context
>   */
> @@ -226,7 +227,7 @@ struct exynos_drm_crtc {
>  	unsigned int			dpms;
>  	enum exynos_crtc_mode		mode;
>  	wait_queue_head_t		pending_flip_queue;
> -	atomic_t			pending_flip;
> +	struct drm_pending_vblank_event	*event;
>  	struct exynos_drm_crtc_ops	*ops;
>  	void				*ctx;
>  };
> @@ -256,9 +257,6 @@ struct drm_exynos_file_private {
>  struct exynos_drm_private {
>  	struct drm_fb_helper *fb_helper;
>  
> -	/* list head for new event to be added. */
> -	struct list_head pageflip_event_list;
> -
>  	/*
>  	 * created crtc object would be contained at this array and
>  	 * this array is used to be aware of which crtc did it request vblank.
> 

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Gustavo Padovan]

2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:

> +Cc Inki,
> 
> Hi,
> 
> On 01/30/2015 02:10 AM, Gustavo Padovan wrote:
> > From: Mandeep Singh Baines <msb@chromium.org>
> > 
> > The goal of the change is to make sure we send the vblank event on the
> > current vblank. My hope is to fix any races that might be causing flicker.
> > After this change I only see a flicker in the transition plymouth and
> > X11.
> > 
> > Simplified the code by tracking vblank events on a per-crtc basis. This
> > allowed me to remove all error paths from the callback. It also allowed
> > me to remove the vblank wait from the callback.
> > 
> > Signed-off-by: Mandeep Singh Baines <msb@chromium.org>
> > Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > ---
> >  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 29 +++++++----------------------
> >  drivers/gpu/drm/exynos/exynos_drm_drv.c  | 19 -------------------
> >  drivers/gpu/drm/exynos/exynos_drm_drv.h  |  6 ++----
> >  3 files changed, 9 insertions(+), 45 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > index a85c451..91c175b 100644
> > --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > @@ -34,9 +34,8 @@ static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
> >  	if (mode > DRM_MODE_DPMS_ON) {
> >  		/* wait for the completion of page flip. */
> >  		if (!wait_event_timeout(exynos_crtc->pending_flip_queue,
> > -				!atomic_read(&exynos_crtc->pending_flip),
> > -				HZ/20))
> > -			atomic_set(&exynos_crtc->pending_flip, 0);
> > +				(exynos_crtc->event == NULL), HZ/20))
> > +			exynos_crtc->event = NULL;
> >  		drm_crtc_vblank_off(crtc);
> >  	}
> >  
> > @@ -166,7 +165,6 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
> >  				     uint32_t page_flip_flags)
> >  {
> >  	struct drm_device *dev = crtc->dev;
> > -	struct exynos_drm_private *dev_priv = dev->dev_private;
> >  	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
> >  	struct drm_framebuffer *old_fb = crtc->primary->fb;
> >  	unsigned int crtc_w, crtc_h;
> > @@ -195,9 +193,7 @@ static int exynos_drm_crtc_page_flip(struct drm_crtc *crtc,
> >  		}
> >  
> >  		spin_lock_irq(&dev->event_lock);
> > -		list_add_tail(&event->base.link,
> > -				&dev_priv->pageflip_event_list);
> > -		atomic_set(&exynos_crtc->pending_flip, 1);
> > +		exynos_crtc->event = event;
> 
> We will lose unfinished prior events by this change. That's why we use
> linked list.

I think you are right, but I was using exynos_crtc->event to do exactly the
same as exynos_crtc->pending_flip. So we were losing a event in
exynos_drm_crtc_dpms() before too. I change this patch to have a page_flip
list on the crtc. 

	Gustavo

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Daniel Stone]

Hi,

On 30 January 2015 at 14:30, Gustavo Padovan <gustavo@padovan.org> wrote:
> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
>> We will lose unfinished prior events by this change. That's why we use
>> linked list.
>
> I think you are right, but I was using exynos_crtc->event to do exactly the
> same as exynos_crtc->pending_flip. So we were losing a event in
> exynos_drm_crtc_dpms() before too. I change this patch to have a page_flip
> list on the crtc.

The usual approach in other drivers is to return -EBUSY when there is
already an async pageflip pending. This definitely makes sense to me,
as I don't see the point of submitting pageflips faster than the
hardware can actually render, and pretending to the application that
they were actually shown.

Cheers,
Daniel
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Daniel Vetter]

On Fri, Jan 30, 2015 at 03:57:53PM +0000, Daniel Stone wrote:
> Hi,
> 
> On 30 January 2015 at 14:30, Gustavo Padovan <gustavo@padovan.org> wrote:
> > 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> >> We will lose unfinished prior events by this change. That's why we use
> >> linked list.
> >
> > I think you are right, but I was using exynos_crtc->event to do exactly the
> > same as exynos_crtc->pending_flip. So we were losing a event in
> > exynos_drm_crtc_dpms() before too. I change this patch to have a page_flip
> > list on the crtc.
> 
> The usual approach in other drivers is to return -EBUSY when there is
> already an async pageflip pending. This definitely makes sense to me,
> as I don't see the point of submitting pageflips faster than the
> hardware can actually render, and pretending to the application that
> they were actually shown.

Yes, right now drm doesn't really support anything like a pageflip queue.
Same for atomic really. Even the async pageflip mode works like it, it
just ends up flipping faster.

Long-term we want a flip queue where subsequent flips can be folded
together on the next vblank. That makes benchmark-mode games happy,
without resulting in tearing like async flips and still resulting in the
lowest possible latency (since the kernel we just commit the flips for
which all the buffers are ready and not stall).
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Gustavo Padovan]

2015-01-30 Daniel Vetter <daniel@ffwll.ch>:

> On Fri, Jan 30, 2015 at 03:57:53PM +0000, Daniel Stone wrote:
> > Hi,
> > 
> > On 30 January 2015 at 14:30, Gustavo Padovan <gustavo@padovan.org> wrote:
> > > 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> > >> We will lose unfinished prior events by this change. That's why we use
> > >> linked list.
> > >
> > > I think you are right, but I was using exynos_crtc->event to do exactly the
> > > same as exynos_crtc->pending_flip. So we were losing a event in
> > > exynos_drm_crtc_dpms() before too. I change this patch to have a page_flip
> > > list on the crtc.
> > 
> > The usual approach in other drivers is to return -EBUSY when there is
> > already an async pageflip pending. This definitely makes sense to me,
> > as I don't see the point of submitting pageflips faster than the
> > hardware can actually render, and pretending to the application that
> > they were actually shown.
> 
> Yes, right now drm doesn't really support anything like a pageflip queue.
> Same for atomic really. Even the async pageflip mode works like it, it
> just ends up flipping faster.
> 
> Long-term we want a flip queue where subsequent flips can be folded
> together on the next vblank. That makes benchmark-mode games happy,
> without resulting in tearing like async flips and still resulting in the
> lowest possible latency (since the kernel we just commit the flips for
> which all the buffers are ready and not stall).

Yeah, that makes sense. I'll just add a check for -EBUSY and send a v2.

	Gustavo

Re: [PATCH -v2] drm/exynos: track vblank events on a per crtc basis

[Joonyoung Shim]

On 01/31/2015 02:17 AM, Gustavo Padovan wrote:
> 2015-01-30 Daniel Vetter <daniel@ffwll.ch>:
> 
>> On Fri, Jan 30, 2015 at 03:57:53PM +0000, Daniel Stone wrote:
>>> Hi,
>>>
>>> On 30 January 2015 at 14:30, Gustavo Padovan <gustavo@padovan.org> wrote:
>>>> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
>>>>> We will lose unfinished prior events by this change. That's why we use
>>>>> linked list.
>>>>
>>>> I think you are right, but I was using exynos_crtc->event to do exactly the
>>>> same as exynos_crtc->pending_flip. So we were losing a event in
>>>> exynos_drm_crtc_dpms() before too. I change this patch to have a page_flip
>>>> list on the crtc.
>>>
>>> The usual approach in other drivers is to return -EBUSY when there is
>>> already an async pageflip pending. This definitely makes sense to me,
>>> as I don't see the point of submitting pageflips faster than the
>>> hardware can actually render, and pretending to the application that
>>> they were actually shown.
>>
>> Yes, right now drm doesn't really support anything like a pageflip queue.
>> Same for atomic really. Even the async pageflip mode works like it, it
>> just ends up flipping faster.
>>
>> Long-term we want a flip queue where subsequent flips can be folded
>> together on the next vblank. That makes benchmark-mode games happy,
>> without resulting in tearing like async flips and still resulting in the
>> lowest possible latency (since the kernel we just commit the flips for
>> which all the buffers are ready and not stall).
> 
> Yeah, that makes sense. I'll just add a check for -EBUSY and send a v2.
> 

Then it's reasonable to me.

Thanks.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH 3/6] drm/exynos: Remove exynos_plane_dpms() call with no effect

[Gustavo Padovan]

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback
from the underlying layer. However neither one of these layers implement
win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms()
is pointless.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index b1f1b25..d0f4e1b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -65,8 +65,6 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
 
 	if (exynos_crtc->ops->commit)
 		exynos_crtc->ops->commit(exynos_crtc);
-
-	exynos_plane_dpms(crtc->primary, DRM_MODE_DPMS_ON);
 }
 
 static bool
-- 
1.9.3

Re: [PATCH 3/6] drm/exynos: Remove exynos_plane_dpms() call with no effect

[Joonyoung Shim]

+Cc Inki,

Hi,

On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback
> from the underlying layer. However neither one of these layers implement
> win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms()
> is pointless.
> 

No, it needs for pair with DRM_MODE_DPMS_OFF case.

Thanks.

> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> index b1f1b25..d0f4e1b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> @@ -65,8 +65,6 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
>  
>  	if (exynos_crtc->ops->commit)
>  		exynos_crtc->ops->commit(exynos_crtc);
> -
> -	exynos_plane_dpms(crtc->primary, DRM_MODE_DPMS_ON);
>  }
>  
>  static bool
> 

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 3/6] drm/exynos: Remove exynos_plane_dpms() call with no effect

[Gustavo Padovan]

2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:

> +Cc Inki,
> 
> Hi,
> 
> On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > 
> > exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback
> > from the underlying layer. However neither one of these layers implement
> > win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms()
> > is pointless.
> > 
> 
> No, it needs for pair with DRM_MODE_DPMS_OFF case.

It is a stub call. exynos_plane_dpms(DRM_MODE_DPMS_ON) only calls
exynos_crtc->ops->win_enable() however neither FIMD, VIDI or Mixer implements
win_enable(). So it has no effect and we can remove this call safely.

	Gustavo
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 3/6] drm/exynos: Remove exynos_plane_dpms() call with no effect

[Joonyoung Shim]

On 01/30/2015 11:36 PM, Gustavo Padovan wrote:
> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> 
>> +Cc Inki,
>>
>> Hi,
>>
>> On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
>>> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>>>
>>> exynos_plane_dpms(DRM_MODE_DPMS_ON) calls the win_enable()'s callback
>>> from the underlying layer. However neither one of these layers implement
>>> win_enable() - FIMD, Mixer and VIDI. Thus the call to exynos_plane_dpms()
>>> is pointless.
>>>

Yes, this can be useful in api aspect later.

>>
>> No, it needs for pair with DRM_MODE_DPMS_OFF case.
> 
> It is a stub call. exynos_plane_dpms(DRM_MODE_DPMS_ON) only calls
> exynos_crtc->ops->win_enable() however neither FIMD, VIDI or Mixer implements
> win_enable(). So it has no effect and we can remove this call safely.
> 

No, we can stop to set duplication by enabled flag of struct
exynos_drm_plane, that's why keep fair. Currently the plane is not
disabled actually when disable the plane after setplane without below
link patch.

http://www.spinics.net/lists/dri-devel/msg76143.html

Thanks.

[PATCH 4/6] drm/exynos: remove leftover functions declarations

[Gustavo Padovan]

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

These functions were already removed by previous cleanup work, but these
ones were left behind.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
index 6258b80..628b787 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -27,12 +27,6 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe);
 void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe);
 void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb);
 
-void exynos_drm_crtc_plane_mode_set(struct drm_crtc *crtc,
-			struct exynos_drm_plane *plane);
-void exynos_drm_crtc_plane_commit(struct drm_crtc *crtc, int zpos);
-void exynos_drm_crtc_plane_enable(struct drm_crtc *crtc, int zpos);
-void exynos_drm_crtc_plane_disable(struct drm_crtc *crtc, int zpos);
-
 /* This function gets pipe value to crtc device matched with out_type. */
 int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
 					unsigned int out_type);
-- 
1.9.3

Re: [PATCH 4/6] drm/exynos: remove leftover functions declarations

[Joonyoung Shim]

+Cc Inki,

Hi,

On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> These functions were already removed by previous cleanup work, but these
> ones were left behind.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.h | 6 ------
>  1 file changed, 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
> index 6258b80..628b787 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
> @@ -27,12 +27,6 @@ void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int pipe);
>  void exynos_drm_crtc_finish_pageflip(struct drm_device *dev, int pipe);
>  void exynos_drm_crtc_complete_scanout(struct drm_framebuffer *fb);
>  
> -void exynos_drm_crtc_plane_mode_set(struct drm_crtc *crtc,
> -			struct exynos_drm_plane *plane);
> -void exynos_drm_crtc_plane_commit(struct drm_crtc *crtc, int zpos);
> -void exynos_drm_crtc_plane_enable(struct drm_crtc *crtc, int zpos);
> -void exynos_drm_crtc_plane_disable(struct drm_crtc *crtc, int zpos);
> -
>  /* This function gets pipe value to crtc device matched with out_type. */
>  int exynos_drm_crtc_get_pipe_from_type(struct drm_device *drm_dev,
>  					unsigned int out_type);
> 

Acked-by: Joonyoung Shim <jy0922.shim@samsung.com>

Thanks.

[PATCH 5/6] drm/exynos: remove struct *_win_data abstraction on planes

[Gustavo Padovan]

From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

struct {fimd,mixer,vidi}_win_data was just keeping the same data
as struct exynos_drm_plane thus get ride of it and use exynos_drm_plane
directly.

It changes how planes are created and remove .win_mode_set() callback
that was only filling all *_win_data structs.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c  |   9 +-
 drivers/gpu/drm/exynos/exynos_drm_crtc.h  |   1 +
 drivers/gpu/drm/exynos/exynos_drm_drv.c   |  14 --
 drivers/gpu/drm/exynos/exynos_drm_drv.h   |   5 +-
 drivers/gpu/drm/exynos/exynos_drm_fimd.c  | 181 ++++++++++---------------
 drivers/gpu/drm/exynos/exynos_drm_plane.c |  20 +--
 drivers/gpu/drm/exynos/exynos_drm_plane.h |   6 +-
 drivers/gpu/drm/exynos/exynos_drm_vidi.c  | 123 ++++-------------
 drivers/gpu/drm/exynos/exynos_mixer.c     | 212 +++++++++++-------------------
 9 files changed, 182 insertions(+), 389 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index d0f4e1b..5cd6c1a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -287,13 +287,13 @@ static void exynos_drm_crtc_attach_mode_property(struct drm_crtc *crtc)
 }
 
 struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
+					       struct drm_plane *plane,
 					       int pipe,
 					       enum exynos_drm_output_type type,
 					       struct exynos_drm_crtc_ops *ops,
 					       void *ctx)
 {
 	struct exynos_drm_crtc *exynos_crtc;
-	struct drm_plane *plane;
 	struct exynos_drm_private *private = drm_dev->dev_private;
 	struct drm_crtc *crtc;
 	int ret;
@@ -309,12 +309,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 	exynos_crtc->type = type;
 	exynos_crtc->ops = ops;
 	exynos_crtc->ctx = ctx;
-	plane = exynos_plane_init(drm_dev, 1 << pipe,
-				  DRM_PLANE_TYPE_PRIMARY);
-	if (IS_ERR(plane)) {
-		ret = PTR_ERR(plane);
-		goto err_plane;
-	}
 
 	crtc = &exynos_crtc->base;
 
@@ -333,7 +327,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
 
 err_crtc:
 	plane->funcs->destroy(plane);
-err_plane:
 	kfree(exynos_crtc);
 	return ERR_PTR(ret);
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.h b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
index 628b787..0ecd8fc 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.h
@@ -18,6 +18,7 @@
 #include "exynos_drm_drv.h"
 
 struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
+					       struct drm_plane *plane,
 					       int pipe,
 					       enum exynos_drm_output_type type,
 					       struct exynos_drm_crtc_ops *ops,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 731cdbc..1fa2a7f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -55,7 +55,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 {
 	struct exynos_drm_private *private;
 	int ret;
-	int nr;
 
 	private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
 	if (!private)
@@ -80,19 +79,6 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 
 	exynos_drm_mode_config_init(dev);
 
-	for (nr = 0; nr < MAX_PLANE; nr++) {
-		struct drm_plane *plane;
-		unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
-
-		plane = exynos_plane_init(dev, possible_crtcs,
-					  DRM_PLANE_TYPE_OVERLAY);
-		if (!IS_ERR(plane))
-			continue;
-
-		ret = PTR_ERR(plane);
-		goto err_mode_config_cleanup;
-	}
-
 	/* setup possible_clones. */
 	exynos_drm_encoder_setup(dev);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 7411af2..cad54e7 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -78,6 +78,7 @@ enum exynos_drm_output_type {
  * @transparency: transparency on or off.
  * @activated: activated or not.
  * @enabled: enabled or not.
+ * @resume: to resume or not.
  *
  * this structure is common to exynos SoC and its contents would be copied
  * to hardware specific overlay info.
@@ -112,6 +113,7 @@ struct exynos_drm_plane {
 	bool transparency:1;
 	bool activated:1;
 	bool enabled:1;
+	bool resume:1;
 };
 
 /*
@@ -172,7 +174,6 @@ struct exynos_drm_display {
  * @disable_vblank: specific driver callback for disabling vblank interrupt.
  * @wait_for_vblank: wait for vblank interrupt to make sure that
  *	hardware overlay is updated.
- * @win_mode_set: copy drm overlay info to hw specific overlay info.
  * @win_commit: apply hardware specific overlay data to registers.
  * @win_enable: enable hardware specific overlay.
  * @win_disable: disable hardware specific overlay.
@@ -189,8 +190,6 @@ struct exynos_drm_crtc_ops {
 	int (*enable_vblank)(struct exynos_drm_crtc *crtc);
 	void (*disable_vblank)(struct exynos_drm_crtc *crtc);
 	void (*wait_for_vblank)(struct exynos_drm_crtc *crtc);
-	void (*win_mode_set)(struct exynos_drm_crtc *crtc,
-				struct exynos_drm_plane *plane);
 	void (*win_commit)(struct exynos_drm_crtc *crtc, int zpos);
 	void (*win_enable)(struct exynos_drm_crtc *crtc, int zpos);
 	void (*win_disable)(struct exynos_drm_crtc *crtc, int zpos);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index d54ca07..27aebda 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -31,6 +31,7 @@
 #include "exynos_drm_drv.h"
 #include "exynos_drm_fbdev.h"
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
 #include "exynos_drm_iommu.h"
 
 /*
@@ -140,31 +141,15 @@ static struct fimd_driver_data exynos5_fimd_driver_data = {
 	.has_vtsel = 1,
 };
 
-struct fimd_win_data {
-	unsigned int		offset_x;
-	unsigned int		offset_y;
-	unsigned int		ovl_width;
-	unsigned int		ovl_height;
-	unsigned int		fb_width;
-	unsigned int		fb_height;
-	unsigned int		bpp;
-	unsigned int		pixel_format;
-	dma_addr_t		dma_addr;
-	unsigned int		buf_offsize;
-	unsigned int		line_size;	/* bytes */
-	bool			enabled;
-	bool			resume;
-};
-
 struct fimd_context {
 	struct device			*dev;
 	struct drm_device		*drm_dev;
 	struct exynos_drm_crtc		*crtc;
+	struct exynos_drm_plane		planes[WINDOWS_NR];
 	struct clk			*bus_clk;
 	struct clk			*lcd_clk;
 	void __iomem			*regs;
 	struct regmap			*sysreg;
-	struct fimd_win_data		win_data[WINDOWS_NR];
 	unsigned int			default_win;
 	unsigned long			irq_flags;
 	u32				vidcon0;
@@ -500,58 +485,9 @@ static void fimd_disable_vblank(struct exynos_drm_crtc *crtc)
 	}
 }
 
-static void fimd_win_mode_set(struct exynos_drm_crtc *crtc,
-			struct exynos_drm_plane *plane)
-{
-	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
-	int win;
-	unsigned long offset;
-
-	if (!plane) {
-		DRM_ERROR("plane is NULL\n");
-		return;
-	}
-
-	win = plane->zpos;
-	if (win == DEFAULT_ZPOS)
-		win = ctx->default_win;
-
-	if (win < 0 || win >= WINDOWS_NR)
-		return;
-
-	offset = plane->fb_x * (plane->bpp >> 3);
-	offset += plane->fb_y * plane->pitch;
-
-	DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, plane->pitch);
-
-	win_data = &ctx->win_data[win];
-
-	win_data->offset_x = plane->crtc_x;
-	win_data->offset_y = plane->crtc_y;
-	win_data->ovl_width = plane->crtc_width;
-	win_data->ovl_height = plane->crtc_height;
-	win_data->fb_width = plane->fb_width;
-	win_data->fb_height = plane->fb_height;
-	win_data->dma_addr = plane->dma_addr[0] + offset;
-	win_data->bpp = plane->bpp;
-	win_data->pixel_format = plane->pixel_format;
-	win_data->buf_offsize = (plane->fb_width - plane->crtc_width) *
-				(plane->bpp >> 3);
-	win_data->line_size = plane->crtc_width * (plane->bpp >> 3);
-
-	DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n",
-			win_data->offset_x, win_data->offset_y);
-	DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
-			win_data->ovl_width, win_data->ovl_height);
-	DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr);
-	DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n",
-			plane->fb_width, plane->crtc_width);
-}
-
 static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win)
 {
-	struct fimd_win_data *win_data = &ctx->win_data[win];
+	struct exynos_drm_plane *plane = &ctx->planes[win];
 	unsigned long val;
 
 	val = WINCONx_ENWIN;
@@ -561,11 +497,11 @@ static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win)
 	 * So the request format is ARGB8888 then change it to XRGB8888.
 	 */
 	if (ctx->driver_data->has_limited_fmt && !win) {
-		if (win_data->pixel_format == DRM_FORMAT_ARGB8888)
-			win_data->pixel_format = DRM_FORMAT_XRGB8888;
+		if (plane->pixel_format == DRM_FORMAT_ARGB8888)
+			plane->pixel_format = DRM_FORMAT_XRGB8888;
 	}
 
-	switch (win_data->pixel_format) {
+	switch (plane->pixel_format) {
 	case DRM_FORMAT_C8:
 		val |= WINCON0_BPPMODE_8BPP_PALETTE;
 		val |= WINCONx_BURSTLEN_8WORD;
@@ -601,7 +537,7 @@ static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win)
 		break;
 	}
 
-	DRM_DEBUG_KMS("bpp = %d\n", win_data->bpp);
+	DRM_DEBUG_KMS("bpp = %d\n", plane->bpp);
 
 	/*
 	 * In case of exynos, setting dma-burst to 16Word causes permanent
@@ -611,7 +547,7 @@ static void fimd_win_set_pixfmt(struct fimd_context *ctx, unsigned int win)
 	 * movement causes unstable DMA which results into iommu crash/tear.
 	 */
 
-	if (win_data->fb_width < MIN_FB_WIDTH_FOR_16WORD_BURST) {
+	if (plane->fb_width < MIN_FB_WIDTH_FOR_16WORD_BURST) {
 		val &= ~WINCONx_BURSTLEN_MASK;
 		val |= WINCONx_BURSTLEN_4WORD;
 	}
@@ -662,11 +598,11 @@ static void fimd_shadow_protect_win(struct fimd_context *ctx,
 static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int win = zpos;
-	unsigned long val, alpha, size;
-	unsigned int last_x;
-	unsigned int last_y;
+	dma_addr_t dma_addr;
+	unsigned long val, alpha, size, offset;
+	unsigned int last_x, last_y, buf_offsize, line_size;
 
 	if (ctx->suspended)
 		return;
@@ -677,11 +613,11 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	if (win < 0 || win >= WINDOWS_NR)
 		return;
 
-	win_data = &ctx->win_data[win];
+	plane = &ctx->planes[win];
 
 	/* If suspended, enable this on resume */
 	if (ctx->suspended) {
-		win_data->resume = true;
+		plane->resume = true;
 		return;
 	}
 
@@ -698,38 +634,45 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	/* protect windows */
 	fimd_shadow_protect_win(ctx, win, true);
 
+
+	offset = plane->fb_x * (plane->bpp >> 3);
+	offset += plane->fb_y * plane->pitch;
+
 	/* buffer start address */
-	val = (unsigned long)win_data->dma_addr;
+	dma_addr = plane->dma_addr[0] + offset;
+	val = (unsigned long)dma_addr;
 	writel(val, ctx->regs + VIDWx_BUF_START(win, 0));
 
 	/* buffer end address */
-	size = win_data->fb_width * win_data->ovl_height * (win_data->bpp >> 3);
-	val = (unsigned long)(win_data->dma_addr + size);
+	size = plane->fb_width * plane->crtc_height * (plane->bpp >> 3);
+	val = (unsigned long)(dma_addr + size);
 	writel(val, ctx->regs + VIDWx_BUF_END(win, 0));
 
 	DRM_DEBUG_KMS("start addr = 0x%lx, end addr = 0x%lx, size = 0x%lx\n",
-			(unsigned long)win_data->dma_addr, val, size);
+			(unsigned long)dma_addr, val, size);
 	DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
-			win_data->ovl_width, win_data->ovl_height);
+			plane->crtc_width, plane->crtc_height);
 
 	/* buffer size */
-	val = VIDW_BUF_SIZE_OFFSET(win_data->buf_offsize) |
-		VIDW_BUF_SIZE_PAGEWIDTH(win_data->line_size) |
-		VIDW_BUF_SIZE_OFFSET_E(win_data->buf_offsize) |
-		VIDW_BUF_SIZE_PAGEWIDTH_E(win_data->line_size);
+	buf_offsize = (plane->fb_width - plane->crtc_width) * (plane->bpp >> 3);
+	line_size = plane->crtc_width * (plane->bpp >> 3);
+	val = VIDW_BUF_SIZE_OFFSET(buf_offsize) |
+		VIDW_BUF_SIZE_PAGEWIDTH(line_size) |
+		VIDW_BUF_SIZE_OFFSET_E(buf_offsize) |
+		VIDW_BUF_SIZE_PAGEWIDTH_E(line_size);
 	writel(val, ctx->regs + VIDWx_BUF_SIZE(win, 0));
 
 	/* OSD position */
-	val = VIDOSDxA_TOPLEFT_X(win_data->offset_x) |
-		VIDOSDxA_TOPLEFT_Y(win_data->offset_y) |
-		VIDOSDxA_TOPLEFT_X_E(win_data->offset_x) |
-		VIDOSDxA_TOPLEFT_Y_E(win_data->offset_y);
+	val = VIDOSDxA_TOPLEFT_X(plane->crtc_x) |
+		VIDOSDxA_TOPLEFT_Y(plane->crtc_y) |
+		VIDOSDxA_TOPLEFT_X_E(plane->crtc_x) |
+		VIDOSDxA_TOPLEFT_Y_E(plane->crtc_y);
 	writel(val, ctx->regs + VIDOSD_A(win));
 
-	last_x = win_data->offset_x + win_data->ovl_width;
+	last_x = plane->crtc_x + plane->crtc_width;
 	if (last_x)
 		last_x--;
-	last_y = win_data->offset_y + win_data->ovl_height;
+	last_y = plane->crtc_y + plane->crtc_height;
 	if (last_y)
 		last_y--;
 
@@ -739,7 +682,7 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	writel(val, ctx->regs + VIDOSD_B(win));
 
 	DRM_DEBUG_KMS("osd pos: tx = %d, ty = %d, bx = %d, by = %d\n",
-			win_data->offset_x, win_data->offset_y, last_x, last_y);
+			plane->crtc_x, plane->crtc_y, last_x, last_y);
 
 	/* hardware window 0 doesn't support alpha channel. */
 	if (win != 0) {
@@ -756,7 +699,7 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 		u32 offset = VIDOSD_D(win);
 		if (win == 0)
 			offset = VIDOSD_C(win);
-		val = win_data->ovl_width * win_data->ovl_height;
+		val = plane->crtc_width * plane->crtc_height;
 		writel(val, ctx->regs + offset);
 
 		DRM_DEBUG_KMS("osd size = 0x%x\n", (unsigned int)val);
@@ -776,7 +719,7 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	/* Enable DMA channel and unprotect windows */
 	fimd_shadow_protect_win(ctx, win, false);
 
-	win_data->enabled = true;
+	plane->enabled = true;
 
 	if (ctx->i80_if)
 		atomic_set(&ctx->win_updated, 1);
@@ -785,7 +728,7 @@ static void fimd_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 static void fimd_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int win = zpos;
 
 	if (win == DEFAULT_ZPOS)
@@ -794,11 +737,11 @@ static void fimd_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 	if (win < 0 || win >= WINDOWS_NR)
 		return;
 
-	win_data = &ctx->win_data[win];
+	plane = &ctx->planes[win];
 
 	if (ctx->suspended) {
 		/* do not resume this window*/
-		win_data->resume = false;
+		plane->resume = false;
 		return;
 	}
 
@@ -813,19 +756,19 @@ static void fimd_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 	/* unprotect windows */
 	fimd_shadow_protect_win(ctx, win, false);
 
-	win_data->enabled = false;
+	plane->enabled = false;
 }
 
 static void fimd_window_suspend(struct exynos_drm_crtc *crtc)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int i;
 
 	for (i = 0; i < WINDOWS_NR; i++) {
-		win_data = &ctx->win_data[i];
-		win_data->resume = win_data->enabled;
-		if (win_data->enabled)
+		plane = &ctx->planes[i];
+		plane->resume = plane->enabled;
+		if (plane->enabled)
 			fimd_win_disable(crtc, i);
 	}
 }
@@ -833,25 +776,25 @@ static void fimd_window_suspend(struct exynos_drm_crtc *crtc)
 static void fimd_window_resume(struct exynos_drm_crtc *crtc)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int i;
 
 	for (i = 0; i < WINDOWS_NR; i++) {
-		win_data = &ctx->win_data[i];
-		win_data->enabled = win_data->resume;
-		win_data->resume = false;
+		plane = &ctx->planes[i];
+		plane->enabled = plane->resume;
+		plane->resume = false;
 	}
 }
 
 static void fimd_apply(struct exynos_drm_crtc *crtc)
 {
 	struct fimd_context *ctx = crtc->ctx;
-	struct fimd_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int i;
 
 	for (i = 0; i < WINDOWS_NR; i++) {
-		win_data = &ctx->win_data[i];
-		if (win_data->enabled)
+		plane = &ctx->planes[i];
+		if (plane->enabled)
 			fimd_win_commit(crtc, i);
 		else
 			fimd_win_disable(crtc, i);
@@ -1011,7 +954,6 @@ static struct exynos_drm_crtc_ops fimd_crtc_ops = {
 	.enable_vblank = fimd_enable_vblank,
 	.disable_vblank = fimd_disable_vblank,
 	.wait_for_vblank = fimd_wait_for_vblank,
-	.win_mode_set = fimd_win_mode_set,
 	.win_commit = fimd_win_commit,
 	.win_disable = fimd_win_disable,
 	.te_handler = fimd_te_handler,
@@ -1056,9 +998,20 @@ static int fimd_bind(struct device *dev, struct device *master, void *data)
 {
 	struct fimd_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	int i;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		type = (i == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		exynos_plane_init(drm_dev, &ctx->planes[i], 1 << ctx->pipe,
+				  type);
+	}
 
-	ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe,
-					   EXYNOS_DISPLAY_TYPE_LCD,
+	exynos_plane = &ctx->planes[ctx->default_win];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD,
 					   &fimd_crtc_ops, ctx);
 	if (IS_ERR(ctx->crtc))
 		return PTR_ERR(ctx->crtc);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
index 358cff6..dc13621 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -93,7 +93,6 @@ void exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
 			  uint32_t src_w, uint32_t src_h)
 {
 	struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane);
-	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 	unsigned int actual_w;
 	unsigned int actual_h;
 
@@ -140,9 +139,6 @@ void exynos_plane_mode_set(struct drm_plane *plane, struct drm_crtc *crtc,
 			exynos_plane->crtc_width, exynos_plane->crtc_height);
 
 	plane->crtc = crtc;
-
-	if (exynos_crtc->ops->win_mode_set)
-		exynos_crtc->ops->win_mode_set(exynos_crtc, exynos_plane);
 }
 
 void exynos_plane_dpms(struct drm_plane *plane, int mode)
@@ -255,24 +251,18 @@ static void exynos_plane_attach_zpos_property(struct drm_plane *plane)
 	drm_object_attach_property(&plane->base, prop, 0);
 }
 
-struct drm_plane *exynos_plane_init(struct drm_device *dev,
-				    unsigned long possible_crtcs,
-				    enum drm_plane_type type)
+int exynos_plane_init(struct drm_device *dev,
+		      struct exynos_drm_plane *exynos_plane,
+		      unsigned long possible_crtcs, enum drm_plane_type type)
 {
-	struct exynos_drm_plane *exynos_plane;
 	int err;
 
-	exynos_plane = kzalloc(sizeof(struct exynos_drm_plane), GFP_KERNEL);
-	if (!exynos_plane)
-		return ERR_PTR(-ENOMEM);
-
 	err = drm_universal_plane_init(dev, &exynos_plane->base, possible_crtcs,
 				       &exynos_plane_funcs, formats,
 				       ARRAY_SIZE(formats), type);
 	if (err) {
 		DRM_ERROR("failed to initialize plane\n");
-		kfree(exynos_plane);
-		return ERR_PTR(err);
+		return err;
 	}
 
 	if (type == DRM_PLANE_TYPE_PRIMARY)
@@ -280,5 +270,5 @@ struct drm_plane *exynos_plane_init(struct drm_device *dev,
 	else
 		exynos_plane_attach_zpos_property(&exynos_plane->base);
 
-	return &exynos_plane->base;
+	return 0;
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.h b/drivers/gpu/drm/exynos/exynos_drm_plane.h
index 59d4075..100ca5e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_plane.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.h
@@ -21,6 +21,6 @@ int exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 			uint32_t src_x, uint32_t src_y,
 			uint32_t src_w, uint32_t src_h);
 void exynos_plane_dpms(struct drm_plane *plane, int mode);
-struct drm_plane *exynos_plane_init(struct drm_device *dev,
-				    unsigned long possible_crtcs,
-				    enum drm_plane_type type);
+int exynos_plane_init(struct drm_device *dev,
+		      struct exynos_drm_plane *exynos_plane,
+		      unsigned long possible_crtcs, enum drm_plane_type type);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
index 9c8300e..0098e9f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
@@ -23,6 +23,7 @@
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
 #include "exynos_drm_encoder.h"
 #include "exynos_drm_vidi.h"
 
@@ -32,20 +33,6 @@
 #define ctx_from_connector(c)	container_of(c, struct vidi_context, \
 					connector)
 
-struct vidi_win_data {
-	unsigned int		offset_x;
-	unsigned int		offset_y;
-	unsigned int		ovl_width;
-	unsigned int		ovl_height;
-	unsigned int		fb_width;
-	unsigned int		fb_height;
-	unsigned int		bpp;
-	dma_addr_t		dma_addr;
-	unsigned int		buf_offsize;
-	unsigned int		line_size;	/* bytes */
-	bool			enabled;
-};
-
 struct vidi_context {
 	struct exynos_drm_display	display;
 	struct platform_device		*pdev;
@@ -53,7 +40,7 @@ struct vidi_context {
 	struct exynos_drm_crtc		*crtc;
 	struct drm_encoder		*encoder;
 	struct drm_connector		connector;
-	struct vidi_win_data		win_data[WINDOWS_NR];
+	struct exynos_drm_plane		planes[WINDOWS_NR];
 	struct edid			*raw_edid;
 	unsigned int			clkdiv;
 	unsigned int			default_win;
@@ -97,20 +84,6 @@ static const char fake_edid_info[] = {
 	0x00, 0x00, 0x00, 0x06
 };
 
-static void vidi_apply(struct exynos_drm_crtc *crtc)
-{
-	struct vidi_context *ctx = crtc->ctx;
-	struct exynos_drm_crtc_ops *crtc_ops = crtc->ops;
-	struct vidi_win_data *win_data;
-	int i;
-
-	for (i = 0; i < WINDOWS_NR; i++) {
-		win_data = &ctx->win_data[i];
-		if (win_data->enabled && (crtc_ops && crtc_ops->win_commit))
-			crtc_ops->win_commit(crtc, i);
-	}
-}
-
 static int vidi_enable_vblank(struct exynos_drm_crtc *crtc)
 {
 	struct vidi_context *ctx = crtc->ctx;
@@ -144,63 +117,10 @@ static void vidi_disable_vblank(struct exynos_drm_crtc *crtc)
 		ctx->vblank_on = false;
 }
 
-static void vidi_win_mode_set(struct exynos_drm_crtc *crtc,
-			struct exynos_drm_plane *plane)
-{
-	struct vidi_context *ctx = crtc->ctx;
-	struct vidi_win_data *win_data;
-	int win;
-	unsigned long offset;
-
-	if (!plane) {
-		DRM_ERROR("plane is NULL\n");
-		return;
-	}
-
-	win = plane->zpos;
-	if (win == DEFAULT_ZPOS)
-		win = ctx->default_win;
-
-	if (win < 0 || win >= WINDOWS_NR)
-		return;
-
-	offset = plane->fb_x * (plane->bpp >> 3);
-	offset += plane->fb_y * plane->pitch;
-
-	DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, plane->pitch);
-
-	win_data = &ctx->win_data[win];
-
-	win_data->offset_x = plane->crtc_x;
-	win_data->offset_y = plane->crtc_y;
-	win_data->ovl_width = plane->crtc_width;
-	win_data->ovl_height = plane->crtc_height;
-	win_data->fb_width = plane->fb_width;
-	win_data->fb_height = plane->fb_height;
-	win_data->dma_addr = plane->dma_addr[0] + offset;
-	win_data->bpp = plane->bpp;
-	win_data->buf_offsize = (plane->fb_width - plane->crtc_width) *
-				(plane->bpp >> 3);
-	win_data->line_size = plane->crtc_width * (plane->bpp >> 3);
-
-	/*
-	 * some parts of win_data should be transferred to user side
-	 * through specific ioctl.
-	 */
-
-	DRM_DEBUG_KMS("offset_x = %d, offset_y = %d\n",
-			win_data->offset_x, win_data->offset_y);
-	DRM_DEBUG_KMS("ovl_width = %d, ovl_height = %d\n",
-			win_data->ovl_width, win_data->ovl_height);
-	DRM_DEBUG_KMS("paddr = 0x%lx\n", (unsigned long)win_data->dma_addr);
-	DRM_DEBUG_KMS("fb_width = %d, crtc_width = %d\n",
-			plane->fb_width, plane->crtc_width);
-}
-
 static void vidi_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 {
 	struct vidi_context *ctx = crtc->ctx;
-	struct vidi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int win = zpos;
 
 	if (ctx->suspended)
@@ -212,11 +132,11 @@ static void vidi_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	if (win < 0 || win >= WINDOWS_NR)
 		return;
 
-	win_data = &ctx->win_data[win];
+	plane = &ctx->planes[win];
 
-	win_data->enabled = true;
+	plane->enabled = true;
 
-	DRM_DEBUG_KMS("dma_addr = %pad\n", &win_data->dma_addr);
+	DRM_DEBUG_KMS("dma_addr = %pad\n", plane->dma_addr);
 
 	if (ctx->vblank_on)
 		schedule_work(&ctx->work);
@@ -225,7 +145,7 @@ static void vidi_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 static void vidi_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 {
 	struct vidi_context *ctx = crtc->ctx;
-	struct vidi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int win = zpos;
 
 	if (win == DEFAULT_ZPOS)
@@ -234,8 +154,8 @@ static void vidi_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 	if (win < 0 || win >= WINDOWS_NR)
 		return;
 
-	win_data = &ctx->win_data[win];
-	win_data->enabled = false;
+	plane = &ctx->planes[win];
+	plane->enabled = false;
 
 	/* TODO. */
 }
@@ -243,6 +163,8 @@ static void vidi_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 static int vidi_power_on(struct exynos_drm_crtc *crtc, bool enable)
 {
 	struct vidi_context *ctx = crtc->ctx;
+	struct exynos_drm_plane *plane;
+	int i;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
@@ -256,7 +178,11 @@ static int vidi_power_on(struct exynos_drm_crtc *crtc, bool enable)
 		if (test_and_clear_bit(0, &ctx->irq_flags))
 			vidi_enable_vblank(crtc);
 
-		vidi_apply(crtc);
+		for (i = 0; i < WINDOWS_NR; i++) {
+			plane = &ctx->planes[i];
+			if (plane->enabled)
+				vidi_win_commit(crtc, i);
+		}
 	} else {
 		ctx->suspended = true;
 	}
@@ -304,7 +230,6 @@ static struct exynos_drm_crtc_ops vidi_crtc_ops = {
 	.dpms = vidi_dpms,
 	.enable_vblank = vidi_enable_vblank,
 	.disable_vblank = vidi_disable_vblank,
-	.win_mode_set = vidi_win_mode_set,
 	.win_commit = vidi_win_commit,
 	.win_disable = vidi_win_disable,
 };
@@ -546,10 +471,20 @@ static int vidi_bind(struct device *dev, struct device *master, void *data)
 {
 	struct vidi_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
-	int ret;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	int i, ret;
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		type = (i == ctx->default_win) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		exynos_plane_init(drm_dev, &ctx->planes[i], 1 << ctx->pipe,
+				  type);
+	}
 
-	ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe,
-					   EXYNOS_DISPLAY_TYPE_VIDI,
+	exynos_plane = &ctx->planes[ctx->default_win];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_VIDI,
 					   &vidi_crtc_ops, ctx);
 	if (IS_ERR(ctx->crtc)) {
 		DRM_ERROR("failed to create crtc.\n");
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index b90a423..a629b96 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -37,34 +37,13 @@
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_crtc.h"
+#include "exynos_drm_plane.h"
 #include "exynos_drm_iommu.h"
 #include "exynos_mixer.h"
 
 #define MIXER_WIN_NR		3
 #define MIXER_DEFAULT_WIN	0
 
-struct hdmi_win_data {
-	dma_addr_t		dma_addr;
-	dma_addr_t		chroma_dma_addr;
-	uint32_t		pixel_format;
-	unsigned int		bpp;
-	unsigned int		crtc_x;
-	unsigned int		crtc_y;
-	unsigned int		crtc_width;
-	unsigned int		crtc_height;
-	unsigned int		fb_x;
-	unsigned int		fb_y;
-	unsigned int		fb_width;
-	unsigned int		fb_height;
-	unsigned int		src_width;
-	unsigned int		src_height;
-	unsigned int		mode_width;
-	unsigned int		mode_height;
-	unsigned int		scan_flags;
-	bool			enabled;
-	bool			resume;
-};
-
 struct mixer_resources {
 	int			irq;
 	void __iomem		*mixer_regs;
@@ -88,6 +67,7 @@ struct mixer_context {
 	struct device		*dev;
 	struct drm_device	*drm_dev;
 	struct exynos_drm_crtc	*crtc;
+	struct exynos_drm_plane	planes[MIXER_WIN_NR];
 	int			pipe;
 	bool			interlace;
 	bool			powered;
@@ -97,7 +77,6 @@ struct mixer_context {
 
 	struct mutex		mixer_mutex;
 	struct mixer_resources	mixer_res;
-	struct hdmi_win_data	win_data[MIXER_WIN_NR];
 	enum mixer_version_id	mxr_ver;
 	wait_queue_head_t	wait_vsync_queue;
 	atomic_t		wait_vsync_event;
@@ -401,7 +380,7 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 {
 	struct mixer_resources *res = &ctx->mixer_res;
 	unsigned long flags;
-	struct hdmi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	unsigned int x_ratio, y_ratio;
 	unsigned int buf_num = 1;
 	dma_addr_t luma_addr[2], chroma_addr[2];
@@ -409,9 +388,9 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	bool crcb_mode = false;
 	u32 val;
 
-	win_data = &ctx->win_data[win];
+	plane = &ctx->planes[win];
 
-	switch (win_data->pixel_format) {
+	switch (plane->pixel_format) {
 	case DRM_FORMAT_NV12MT:
 		tiled_mode = true;
 	case DRM_FORMAT_NV12:
@@ -421,35 +400,35 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	/* TODO: single buffer format NV12, NV21 */
 	default:
 		/* ignore pixel format at disable time */
-		if (!win_data->dma_addr)
+		if (!plane->dma_addr[0])
 			break;
 
 		DRM_ERROR("pixel format for vp is wrong [%d].\n",
-				win_data->pixel_format);
+				plane->pixel_format);
 		return;
 	}
 
 	/* scaling feature: (src << 16) / dst */
-	x_ratio = (win_data->src_width << 16) / win_data->crtc_width;
-	y_ratio = (win_data->src_height << 16) / win_data->crtc_height;
+	x_ratio = (plane->src_width << 16) / plane->crtc_width;
+	y_ratio = (plane->src_height << 16) / plane->crtc_height;
 
 	if (buf_num == 2) {
-		luma_addr[0] = win_data->dma_addr;
-		chroma_addr[0] = win_data->chroma_dma_addr;
+		luma_addr[0] = plane->dma_addr[0];
+		chroma_addr[0] = plane->dma_addr[1];
 	} else {
-		luma_addr[0] = win_data->dma_addr;
-		chroma_addr[0] = win_data->dma_addr
-			+ (win_data->fb_width * win_data->fb_height);
+		luma_addr[0] = plane->dma_addr[0];
+		chroma_addr[0] = plane->dma_addr[0]
+			+ (plane->fb_width * plane->fb_height);
 	}
 
-	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) {
+	if (plane->scan_flag & DRM_MODE_FLAG_INTERLACE) {
 		ctx->interlace = true;
 		if (tiled_mode) {
 			luma_addr[1] = luma_addr[0] + 0x40;
 			chroma_addr[1] = chroma_addr[0] + 0x40;
 		} else {
-			luma_addr[1] = luma_addr[0] + win_data->fb_width;
-			chroma_addr[1] = chroma_addr[0] + win_data->fb_width;
+			luma_addr[1] = luma_addr[0] + plane->fb_width;
+			chroma_addr[1] = chroma_addr[0] + plane->fb_width;
 		}
 	} else {
 		ctx->interlace = false;
@@ -470,26 +449,26 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
 
 	/* setting size of input image */
-	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(win_data->fb_width) |
-		VP_IMG_VSIZE(win_data->fb_height));
+	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(plane->fb_width) |
+		VP_IMG_VSIZE(plane->fb_height));
 	/* chroma height has to reduced by 2 to avoid chroma distorions */
-	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(win_data->fb_width) |
-		VP_IMG_VSIZE(win_data->fb_height / 2));
+	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(plane->fb_width) |
+		VP_IMG_VSIZE(plane->fb_height / 2));
 
-	vp_reg_write(res, VP_SRC_WIDTH, win_data->src_width);
-	vp_reg_write(res, VP_SRC_HEIGHT, win_data->src_height);
+	vp_reg_write(res, VP_SRC_WIDTH, plane->src_width);
+	vp_reg_write(res, VP_SRC_HEIGHT, plane->src_height);
 	vp_reg_write(res, VP_SRC_H_POSITION,
-			VP_SRC_H_POSITION_VAL(win_data->fb_x));
-	vp_reg_write(res, VP_SRC_V_POSITION, win_data->fb_y);
+			VP_SRC_H_POSITION_VAL(plane->fb_x));
+	vp_reg_write(res, VP_SRC_V_POSITION, plane->fb_y);
 
-	vp_reg_write(res, VP_DST_WIDTH, win_data->crtc_width);
-	vp_reg_write(res, VP_DST_H_POSITION, win_data->crtc_x);
+	vp_reg_write(res, VP_DST_WIDTH, plane->crtc_width);
+	vp_reg_write(res, VP_DST_H_POSITION, plane->crtc_x);
 	if (ctx->interlace) {
-		vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height / 2);
-		vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y / 2);
+		vp_reg_write(res, VP_DST_HEIGHT, plane->crtc_height / 2);
+		vp_reg_write(res, VP_DST_V_POSITION, plane->crtc_y / 2);
 	} else {
-		vp_reg_write(res, VP_DST_HEIGHT, win_data->crtc_height);
-		vp_reg_write(res, VP_DST_V_POSITION, win_data->crtc_y);
+		vp_reg_write(res, VP_DST_HEIGHT, plane->crtc_height);
+		vp_reg_write(res, VP_DST_V_POSITION, plane->crtc_y);
 	}
 
 	vp_reg_write(res, VP_H_RATIO, x_ratio);
@@ -503,8 +482,8 @@ static void vp_video_buffer(struct mixer_context *ctx, int win)
 	vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]);
 	vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]);
 
-	mixer_cfg_scan(ctx, win_data->mode_height);
-	mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
+	mixer_cfg_scan(ctx, plane->mode_height);
+	mixer_cfg_rgb_fmt(ctx, plane->mode_height);
 	mixer_cfg_layer(ctx, win, true);
 	mixer_run(ctx);
 
@@ -525,21 +504,21 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 {
 	struct mixer_resources *res = &ctx->mixer_res;
 	unsigned long flags;
-	struct hdmi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	unsigned int x_ratio, y_ratio;
 	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
 	dma_addr_t dma_addr;
 	unsigned int fmt;
 	u32 val;
 
-	win_data = &ctx->win_data[win];
+	plane = &ctx->planes[win];
 
 	#define RGB565 4
 	#define ARGB1555 5
 	#define ARGB4444 6
 	#define ARGB8888 7
 
-	switch (win_data->bpp) {
+	switch (plane->bpp) {
 	case 16:
 		fmt = ARGB4444;
 		break;
@@ -554,17 +533,17 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 	x_ratio = 0;
 	y_ratio = 0;
 
-	dst_x_offset = win_data->crtc_x;
-	dst_y_offset = win_data->crtc_y;
+	dst_x_offset = plane->crtc_x;
+	dst_y_offset = plane->crtc_y;
 
 	/* converting dma address base and source offset */
-	dma_addr = win_data->dma_addr
-		+ (win_data->fb_x * win_data->bpp >> 3)
-		+ (win_data->fb_y * win_data->fb_width * win_data->bpp >> 3);
+	dma_addr = plane->dma_addr[0]
+		+ (plane->fb_x * plane->bpp >> 3)
+		+ (plane->fb_y * plane->fb_width * plane->bpp >> 3);
 	src_x_offset = 0;
 	src_y_offset = 0;
 
-	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE)
+	if (plane->scan_flag & DRM_MODE_FLAG_INTERLACE)
 		ctx->interlace = true;
 	else
 		ctx->interlace = false;
@@ -577,18 +556,18 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 		MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
 
 	/* setup geometry */
-	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), win_data->fb_width);
+	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), plane->fb_width);
 
 	/* setup display size */
 	if (ctx->mxr_ver == MXR_VER_128_0_0_184 &&
 		win == MIXER_DEFAULT_WIN) {
-		val  = MXR_MXR_RES_HEIGHT(win_data->fb_height);
-		val |= MXR_MXR_RES_WIDTH(win_data->fb_width);
+		val  = MXR_MXR_RES_HEIGHT(plane->fb_height);
+		val |= MXR_MXR_RES_WIDTH(plane->fb_width);
 		mixer_reg_write(res, MXR_RESOLUTION, val);
 	}
 
-	val  = MXR_GRP_WH_WIDTH(win_data->crtc_width);
-	val |= MXR_GRP_WH_HEIGHT(win_data->crtc_height);
+	val  = MXR_GRP_WH_WIDTH(plane->crtc_width);
+	val |= MXR_GRP_WH_HEIGHT(plane->crtc_height);
 	val |= MXR_GRP_WH_H_SCALE(x_ratio);
 	val |= MXR_GRP_WH_V_SCALE(y_ratio);
 	mixer_reg_write(res, MXR_GRAPHIC_WH(win), val);
@@ -606,8 +585,8 @@ static void mixer_graph_buffer(struct mixer_context *ctx, int win)
 	/* set buffer address to mixer */
 	mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr);
 
-	mixer_cfg_scan(ctx, win_data->mode_height);
-	mixer_cfg_rgb_fmt(ctx, win_data->mode_height);
+	mixer_cfg_scan(ctx, plane->mode_height);
+	mixer_cfg_rgb_fmt(ctx, plane->mode_height);
 	mixer_cfg_layer(ctx, win, true);
 
 	/* layer update mandatory for mixer 16.0.33.0 */
@@ -913,58 +892,6 @@ static void mixer_disable_vblank(struct exynos_drm_crtc *crtc)
 	mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC);
 }
 
-static void mixer_win_mode_set(struct exynos_drm_crtc *crtc,
-			struct exynos_drm_plane *plane)
-{
-	struct mixer_context *mixer_ctx = crtc->ctx;
-	struct hdmi_win_data *win_data;
-	int win;
-
-	if (!plane) {
-		DRM_ERROR("plane is NULL\n");
-		return;
-	}
-
-	DRM_DEBUG_KMS("set [%d]x[%d] at (%d,%d) to [%d]x[%d] at (%d,%d)\n",
-				 plane->fb_width, plane->fb_height,
-				 plane->fb_x, plane->fb_y,
-				 plane->crtc_width, plane->crtc_height,
-				 plane->crtc_x, plane->crtc_y);
-
-	win = plane->zpos;
-	if (win == DEFAULT_ZPOS)
-		win = MIXER_DEFAULT_WIN;
-
-	if (win < 0 || win >= MIXER_WIN_NR) {
-		DRM_ERROR("mixer window[%d] is wrong\n", win);
-		return;
-	}
-
-	win_data = &mixer_ctx->win_data[win];
-
-	win_data->dma_addr = plane->dma_addr[0];
-	win_data->chroma_dma_addr = plane->dma_addr[1];
-	win_data->pixel_format = plane->pixel_format;
-	win_data->bpp = plane->bpp;
-
-	win_data->crtc_x = plane->crtc_x;
-	win_data->crtc_y = plane->crtc_y;
-	win_data->crtc_width = plane->crtc_width;
-	win_data->crtc_height = plane->crtc_height;
-
-	win_data->fb_x = plane->fb_x;
-	win_data->fb_y = plane->fb_y;
-	win_data->fb_width = plane->fb_width;
-	win_data->fb_height = plane->fb_height;
-	win_data->src_width = plane->src_width;
-	win_data->src_height = plane->src_height;
-
-	win_data->mode_width = plane->mode_width;
-	win_data->mode_height = plane->mode_height;
-
-	win_data->scan_flags = plane->scan_flag;
-}
-
 static void mixer_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 {
 	struct mixer_context *mixer_ctx = crtc->ctx;
@@ -984,7 +911,7 @@ static void mixer_win_commit(struct exynos_drm_crtc *crtc, int zpos)
 	else
 		mixer_graph_buffer(mixer_ctx, win);
 
-	mixer_ctx->win_data[win].enabled = true;
+	mixer_ctx->planes[win].enabled = true;
 }
 
 static void mixer_win_disable(struct exynos_drm_crtc *crtc, int zpos)
@@ -999,7 +926,7 @@ static void mixer_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 	mutex_lock(&mixer_ctx->mixer_mutex);
 	if (!mixer_ctx->powered) {
 		mutex_unlock(&mixer_ctx->mixer_mutex);
-		mixer_ctx->win_data[win].resume = false;
+		mixer_ctx->planes[win].resume = false;
 		return;
 	}
 	mutex_unlock(&mixer_ctx->mixer_mutex);
@@ -1012,7 +939,7 @@ static void mixer_win_disable(struct exynos_drm_crtc *crtc, int zpos)
 	mixer_vsync_set_update(mixer_ctx, true);
 	spin_unlock_irqrestore(&res->reg_slock, flags);
 
-	mixer_ctx->win_data[win].enabled = false;
+	mixer_ctx->planes[win].enabled = false;
 }
 
 static void mixer_wait_for_vblank(struct exynos_drm_crtc *crtc)
@@ -1045,12 +972,12 @@ static void mixer_wait_for_vblank(struct exynos_drm_crtc *crtc)
 static void mixer_window_suspend(struct exynos_drm_crtc *crtc)
 {
 	struct mixer_context *ctx = crtc->ctx;
-	struct hdmi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int i;
 
 	for (i = 0; i < MIXER_WIN_NR; i++) {
-		win_data = &ctx->win_data[i];
-		win_data->resume = win_data->enabled;
+		plane = &ctx->planes[i];
+		plane->resume = plane->enabled;
 		mixer_win_disable(crtc, i);
 	}
 	mixer_wait_for_vblank(crtc);
@@ -1059,14 +986,14 @@ static void mixer_window_suspend(struct exynos_drm_crtc *crtc)
 static void mixer_window_resume(struct exynos_drm_crtc *crtc)
 {
 	struct mixer_context *ctx = crtc->ctx;
-	struct hdmi_win_data *win_data;
+	struct exynos_drm_plane *plane;
 	int i;
 
 	for (i = 0; i < MIXER_WIN_NR; i++) {
-		win_data = &ctx->win_data[i];
-		win_data->enabled = win_data->resume;
-		win_data->resume = false;
-		if (win_data->enabled)
+		plane = &ctx->planes[i];
+		plane->enabled = plane->resume;
+		plane->resume = false;
+		if (plane->enabled)
 			mixer_win_commit(crtc, i);
 	}
 }
@@ -1178,7 +1105,6 @@ static struct exynos_drm_crtc_ops mixer_crtc_ops = {
 	.enable_vblank		= mixer_enable_vblank,
 	.disable_vblank		= mixer_disable_vblank,
 	.wait_for_vblank	= mixer_wait_for_vblank,
-	.win_mode_set		= mixer_win_mode_set,
 	.win_commit		= mixer_win_commit,
 	.win_disable		= mixer_win_disable,
 };
@@ -1242,11 +1168,21 @@ static int mixer_bind(struct device *dev, struct device *manager, void *data)
 {
 	struct mixer_context *ctx = dev_get_drvdata(dev);
 	struct drm_device *drm_dev = data;
-	int ret;
+	struct exynos_drm_plane *exynos_plane;
+	enum drm_plane_type type;
+	int i, ret;
+
+	for (i = 0; i < MIXER_WIN_NR; i++) {
+		type = (i == MIXER_DEFAULT_WIN) ? DRM_PLANE_TYPE_PRIMARY :
+						DRM_PLANE_TYPE_OVERLAY;
+		exynos_plane_init(drm_dev, &ctx->planes[i], 1 << ctx->pipe,
+				  type);
+	}
 
-	ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe,
-				     EXYNOS_DISPLAY_TYPE_HDMI,
-				     &mixer_crtc_ops, ctx);
+	exynos_plane = &ctx->planes[MIXER_DEFAULT_WIN];
+	ctx->crtc = exynos_drm_crtc_create(drm_dev, &exynos_plane->base,
+					   ctx->pipe, EXYNOS_DISPLAY_TYPE_HDMI,
+					   &mixer_crtc_ops, ctx);
 	if (IS_ERR(ctx->crtc)) {
 		ret = PTR_ERR(ctx->crtc);
 		goto free_ctx;
-- 
1.9.3

Re: [PATCH 5/6] drm/exynos: remove struct *_win_data abstraction on planes

[Joonyoung Shim]

+Cc Inki,

Hi,

On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> struct {fimd,mixer,vidi}_win_data was just keeping the same data
> as struct exynos_drm_plane thus get ride of it and use exynos_drm_plane
> directly.
> 
> It changes how planes are created and remove .win_mode_set() callback
> that was only filling all *_win_data structs.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c  |   9 +-
>  drivers/gpu/drm/exynos/exynos_drm_crtc.h  |   1 +
>  drivers/gpu/drm/exynos/exynos_drm_drv.c   |  14 --
>  drivers/gpu/drm/exynos/exynos_drm_drv.h   |   5 +-
>  drivers/gpu/drm/exynos/exynos_drm_fimd.c  | 181 ++++++++++---------------
>  drivers/gpu/drm/exynos/exynos_drm_plane.c |  20 +--
>  drivers/gpu/drm/exynos/exynos_drm_plane.h |   6 +-
>  drivers/gpu/drm/exynos/exynos_drm_vidi.c  | 123 ++++-------------
>  drivers/gpu/drm/exynos/exynos_mixer.c     | 212 +++++++++++-------------------
>  9 files changed, 182 insertions(+), 389 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> index d0f4e1b..5cd6c1a 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> @@ -287,13 +287,13 @@ static void exynos_drm_crtc_attach_mode_property(struct drm_crtc *crtc)
>  }
>  
>  struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
> +					       struct drm_plane *plane,
>  					       int pipe,
>  					       enum exynos_drm_output_type type,
>  					       struct exynos_drm_crtc_ops *ops,
>  					       void *ctx)
>  {
>  	struct exynos_drm_crtc *exynos_crtc;
> -	struct drm_plane *plane;
>  	struct exynos_drm_private *private = drm_dev->dev_private;
>  	struct drm_crtc *crtc;
>  	int ret;
> @@ -309,12 +309,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
>  	exynos_crtc->type = type;
>  	exynos_crtc->ops = ops;
>  	exynos_crtc->ctx = ctx;
> -	plane = exynos_plane_init(drm_dev, 1 << pipe,
> -				  DRM_PLANE_TYPE_PRIMARY);
> -	if (IS_ERR(plane)) {
> -		ret = PTR_ERR(plane);
> -		goto err_plane;
> -	}
>  

The crtc should have one primary plane, i think it is more reasonable
exynos_drm_crtc_create function creates primary plane.

Thanks.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 5/6] drm/exynos: remove struct *_win_data abstraction on planes

[Gustavo Padovan]

Hi Joonyoung,

2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:

> +Cc Inki,
> 
> Hi,
> 
> On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > 
> > struct {fimd,mixer,vidi}_win_data was just keeping the same data
> > as struct exynos_drm_plane thus get ride of it and use exynos_drm_plane
> > directly.
> > 
> > It changes how planes are created and remove .win_mode_set() callback
> > that was only filling all *_win_data structs.
> > 
> > Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > ---
> >  drivers/gpu/drm/exynos/exynos_drm_crtc.c  |   9 +-
> >  drivers/gpu/drm/exynos/exynos_drm_crtc.h  |   1 +
> >  drivers/gpu/drm/exynos/exynos_drm_drv.c   |  14 --
> >  drivers/gpu/drm/exynos/exynos_drm_drv.h   |   5 +-
> >  drivers/gpu/drm/exynos/exynos_drm_fimd.c  | 181 ++++++++++---------------
> >  drivers/gpu/drm/exynos/exynos_drm_plane.c |  20 +--
> >  drivers/gpu/drm/exynos/exynos_drm_plane.h |   6 +-
> >  drivers/gpu/drm/exynos/exynos_drm_vidi.c  | 123 ++++-------------
> >  drivers/gpu/drm/exynos/exynos_mixer.c     | 212 +++++++++++-------------------
> >  9 files changed, 182 insertions(+), 389 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > index d0f4e1b..5cd6c1a 100644
> > --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> > @@ -287,13 +287,13 @@ static void exynos_drm_crtc_attach_mode_property(struct drm_crtc *crtc)
> >  }
> >  
> >  struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
> > +					       struct drm_plane *plane,
> >  					       int pipe,
> >  					       enum exynos_drm_output_type type,
> >  					       struct exynos_drm_crtc_ops *ops,
> >  					       void *ctx)
> >  {
> >  	struct exynos_drm_crtc *exynos_crtc;
> > -	struct drm_plane *plane;
> >  	struct exynos_drm_private *private = drm_dev->dev_private;
> >  	struct drm_crtc *crtc;
> >  	int ret;
> > @@ -309,12 +309,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
> >  	exynos_crtc->type = type;
> >  	exynos_crtc->ops = ops;
> >  	exynos_crtc->ctx = ctx;
> > -	plane = exynos_plane_init(drm_dev, 1 << pipe,
> > -				  DRM_PLANE_TYPE_PRIMARY);
> > -	if (IS_ERR(plane)) {
> > -		ret = PTR_ERR(plane);
> > -		goto err_plane;
> > -	}
> >  
> 
> The crtc should have one primary plane, i think it is more reasonable
> exynos_drm_crtc_create function creates primary plane.

Yes and it has a primary plane. They are defined in the drivers' struct *_context
the same way *_win_data was defined. And they allocated together wit the
context struct and and initialized by exynos_plane_init() right before the
call to exynos_drm_crtc_create(). Check the fimd_bind() part of this patch for
example.

	Gustavo
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 5/6] drm/exynos: remove struct *_win_data abstraction on planes

[Joonyoung Shim]

Hi,

On 01/30/2015 11:42 PM, Gustavo Padovan wrote:
> Hi Joonyoung,
> 
> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> 
>> +Cc Inki,
>>
>> Hi,
>>
>> On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
>>> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>>>
>>> struct {fimd,mixer,vidi}_win_data was just keeping the same data
>>> as struct exynos_drm_plane thus get ride of it and use exynos_drm_plane
>>> directly.
>>>
>>> It changes how planes are created and remove .win_mode_set() callback
>>> that was only filling all *_win_data structs.
>>>
>>> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>>> ---
>>>  drivers/gpu/drm/exynos/exynos_drm_crtc.c  |   9 +-
>>>  drivers/gpu/drm/exynos/exynos_drm_crtc.h  |   1 +
>>>  drivers/gpu/drm/exynos/exynos_drm_drv.c   |  14 --
>>>  drivers/gpu/drm/exynos/exynos_drm_drv.h   |   5 +-
>>>  drivers/gpu/drm/exynos/exynos_drm_fimd.c  | 181 ++++++++++---------------
>>>  drivers/gpu/drm/exynos/exynos_drm_plane.c |  20 +--
>>>  drivers/gpu/drm/exynos/exynos_drm_plane.h |   6 +-
>>>  drivers/gpu/drm/exynos/exynos_drm_vidi.c  | 123 ++++-------------
>>>  drivers/gpu/drm/exynos/exynos_mixer.c     | 212 +++++++++++-------------------
>>>  9 files changed, 182 insertions(+), 389 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>>> index d0f4e1b..5cd6c1a 100644
>>> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>>> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>>> @@ -287,13 +287,13 @@ static void exynos_drm_crtc_attach_mode_property(struct drm_crtc *crtc)
>>>  }
>>>  
>>>  struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
>>> +					       struct drm_plane *plane,
>>>  					       int pipe,
>>>  					       enum exynos_drm_output_type type,
>>>  					       struct exynos_drm_crtc_ops *ops,
>>>  					       void *ctx)
>>>  {
>>>  	struct exynos_drm_crtc *exynos_crtc;
>>> -	struct drm_plane *plane;
>>>  	struct exynos_drm_private *private = drm_dev->dev_private;
>>>  	struct drm_crtc *crtc;
>>>  	int ret;
>>> @@ -309,12 +309,6 @@ struct exynos_drm_crtc *exynos_drm_crtc_create(struct drm_device *drm_dev,
>>>  	exynos_crtc->type = type;
>>>  	exynos_crtc->ops = ops;
>>>  	exynos_crtc->ctx = ctx;
>>> -	plane = exynos_plane_init(drm_dev, 1 << pipe,
>>> -				  DRM_PLANE_TYPE_PRIMARY);
>>> -	if (IS_ERR(plane)) {
>>> -		ret = PTR_ERR(plane);
>>> -		goto err_plane;
>>> -	}
>>>  
>>
>> The crtc should have one primary plane, i think it is more reasonable
>> exynos_drm_crtc_create function creates primary plane.
> 
> Yes and it has a primary plane. They are defined in the drivers' struct *_context
> the same way *_win_data was defined. And they allocated together wit the
> context struct and and initialized by exynos_plane_init() right before the
> call to exynos_drm_crtc_create(). Check the fimd_bind() part of this patch for
> example.
> 

Your approach cannot stop to corrupt primary plane data by overlay
plane. We need to separate plane data used by primary plane and plane
data used by overlay plane.

Thanks.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Gustavo Padovan]

From: Daniel Kurtz <djkurtz@chromium.org>

The 'mode' is the modeline information which specifies the ideal mode
requested by the mode set initiator (usually userspace).
The 'adjusted_mode' is the actual hardware mode after all the crtcs
and encoders have had a chance to "fix it up".

The adjusted_mode starts as a duplicate of the mode in
drm_crtc_helper_set_mode(), and gets modified as required.  There is no
reason to touch the original requested mode.

In fact, doing so will cause us to think a new mode is being requested
whenever userspace tries to establish a new framebuffer with
drmModeSetCrtc(), since userspace will still be using the ideal mode, but
the crtc will be incorrectly comparing it against the adjusted_mode.

Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index 5cd6c1a..7fd6426 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -91,12 +91,6 @@ exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
 	unsigned int crtc_h;
 	int ret;
 
-	/*
-	 * copy the mode data adjusted by mode_fixup() into crtc->mode
-	 * so that hardware can be seet to proper mode.
-	 */
-	memcpy(&crtc->mode, adjusted_mode, sizeof(*adjusted_mode));
-
 	ret = exynos_check_plane(crtc->primary, fb);
 	if (ret < 0)
 		return ret;
-- 
1.9.3

Re: [PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Joonyoung Shim]

Hi,

On 01/23/2015 09:43 PM, Gustavo Padovan wrote:
> From: Daniel Kurtz <djkurtz@chromium.org>
> 
> The 'mode' is the modeline information which specifies the ideal mode
> requested by the mode set initiator (usually userspace).
> The 'adjusted_mode' is the actual hardware mode after all the crtcs
> and encoders have had a chance to "fix it up".
> 
> The adjusted_mode starts as a duplicate of the mode in
> drm_crtc_helper_set_mode(), and gets modified as required.  There is no
> reason to touch the original requested mode.
> 

Agree, but is there any side effect after this commit? Should we save
adjusted_mode to other variable and use it?

Thanks.

> In fact, doing so will cause us to think a new mode is being requested
> whenever userspace tries to establish a new framebuffer with
> drmModeSetCrtc(), since userspace will still be using the ideal mode, but
> the crtc will be incorrectly comparing it against the adjusted_mode.
> 
> Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 6 ------
>  1 file changed, 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> index 5cd6c1a..7fd6426 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> @@ -91,12 +91,6 @@ exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
>  	unsigned int crtc_h;
>  	int ret;
>  
> -	/*
> -	 * copy the mode data adjusted by mode_fixup() into crtc->mode
> -	 * so that hardware can be seet to proper mode.
> -	 */
> -	memcpy(&crtc->mode, adjusted_mode, sizeof(*adjusted_mode));
> -
>  	ret = exynos_check_plane(crtc->primary, fb);
>  	if (ret < 0)
>  		return ret;
> 

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Gustavo Padovan]

Hi Joonyoung,

2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:

> Hi,
> 
> On 01/23/2015 09:43 PM, Gustavo Padovan wrote:
> > From: Daniel Kurtz <djkurtz@chromium.org>
> > 
> > The 'mode' is the modeline information which specifies the ideal mode
> > requested by the mode set initiator (usually userspace).
> > The 'adjusted_mode' is the actual hardware mode after all the crtcs
> > and encoders have had a chance to "fix it up".
> > 
> > The adjusted_mode starts as a duplicate of the mode in
> > drm_crtc_helper_set_mode(), and gets modified as required.  There is no
> > reason to touch the original requested mode.
> > 
> 
> Agree, but is there any side effect after this commit? Should we save
> adjusted_mode to other variable and use it?

I haven't seen any. Tested on peach pi and snow. Do we have any reason to save
it now? I don't we have a user for it now.

	Gustavo
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Joonyoung Shim]

Hi,

On 01/30/2015 11:44 PM, Gustavo Padovan wrote:
> Hi Joonyoung,
> 
> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> 
>> Hi,
>>
>> On 01/23/2015 09:43 PM, Gustavo Padovan wrote:
>>> From: Daniel Kurtz <djkurtz@chromium.org>
>>>
>>> The 'mode' is the modeline information which specifies the ideal mode
>>> requested by the mode set initiator (usually userspace).
>>> The 'adjusted_mode' is the actual hardware mode after all the crtcs
>>> and encoders have had a chance to "fix it up".
>>>
>>> The adjusted_mode starts as a duplicate of the mode in
>>> drm_crtc_helper_set_mode(), and gets modified as required.  There is no
>>> reason to touch the original requested mode.
>>>
>>
>> Agree, but is there any side effect after this commit? Should we save
>> adjusted_mode to other variable and use it?
> 
> I haven't seen any. Tested on peach pi and snow. Do we have any reason to save
> it now? I don't we have a user for it now.
> 

Because current codes use values of adjusted_mode in exynos drm hw drivers.
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Gustavo Padovan]

2015-02-02 Joonyoung Shim <jy0922.shim@samsung.com>:

> Hi,
> 
> On 01/30/2015 11:44 PM, Gustavo Padovan wrote:
> > Hi Joonyoung,
> > 
> > 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
> > 
> >> Hi,
> >>
> >> On 01/23/2015 09:43 PM, Gustavo Padovan wrote:
> >>> From: Daniel Kurtz <djkurtz@chromium.org>
> >>>
> >>> The 'mode' is the modeline information which specifies the ideal mode
> >>> requested by the mode set initiator (usually userspace).
> >>> The 'adjusted_mode' is the actual hardware mode after all the crtcs
> >>> and encoders have had a chance to "fix it up".
> >>>
> >>> The adjusted_mode starts as a duplicate of the mode in
> >>> drm_crtc_helper_set_mode(), and gets modified as required.  There is no
> >>> reason to touch the original requested mode.
> >>>
> >>
> >> Agree, but is there any side effect after this commit? Should we save
> >> adjusted_mode to other variable and use it?
> > 
> > I haven't seen any. Tested on peach pi and snow. Do we have any reason to save
> > it now? I don't we have a user for it now.
> > 
> 
> Because current codes use values of adjusted_mode in exynos drm hw drivers.

I fail to see where this happen. adjusted_mode is passed to to the mode_set()
callback and drivers can use it from there as the hdmi one does for example.

	Gustavo
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel

Re: [PATCH 6/6] drm/exynos: do not copy adjusted mode into mode during crtc mode_set

[Joonyoung Shim]

Hi,

On 02/03/2015 11:16 PM, Gustavo Padovan wrote:
> 2015-02-02 Joonyoung Shim <jy0922.shim@samsung.com>:
> 
>> Hi,
>>
>> On 01/30/2015 11:44 PM, Gustavo Padovan wrote:
>>> Hi Joonyoung,
>>>
>>> 2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:
>>>
>>>> Hi,
>>>>
>>>> On 01/23/2015 09:43 PM, Gustavo Padovan wrote:
>>>>> From: Daniel Kurtz <djkurtz@chromium.org>
>>>>>
>>>>> The 'mode' is the modeline information which specifies the ideal mode
>>>>> requested by the mode set initiator (usually userspace).
>>>>> The 'adjusted_mode' is the actual hardware mode after all the crtcs
>>>>> and encoders have had a chance to "fix it up".
>>>>>
>>>>> The adjusted_mode starts as a duplicate of the mode in
>>>>> drm_crtc_helper_set_mode(), and gets modified as required.  There is no
>>>>> reason to touch the original requested mode.
>>>>>
>>>>
>>>> Agree, but is there any side effect after this commit? Should we save
>>>> adjusted_mode to other variable and use it?
>>>
>>> I haven't seen any. Tested on peach pi and snow. Do we have any reason to save
>>> it now? I don't we have a user for it now.
>>>
>>
>> Because current codes use values of adjusted_mode in exynos drm hw drivers.
> 
> I fail to see where this happen. adjusted_mode is passed to to the mode_set()
> callback and drivers can use it from there as the hdmi one does for example.
> 

Currently adjusted_mode is copied to &crtc->mode, so after if to use
&crtc->mode is same with to use adjusted_mode.

Thanks.

Re: [PATCH 1/6] drm/exynos: remove leftover code using event_list

[Joonyoung Shim]

+Cc Inki,

Hi,

On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> The drm_file event_list hasn't been used anymore by exynos, so we don't
> need any code to clean it.
> 

No, it is used from drm core e.g. drm_irq.c file.

Thanks.

> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_drv.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index 25ba362..b60fd9b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -256,11 +256,6 @@ static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
>  		}
>  	}
>  
> -	/* Release all events handled by page flip handler but not freed. */
> -	list_for_each_entry_safe(e, et, &file->event_list, link) {
> -		list_del(&e->link);
> -		e->destroy(e);
> -	}
>  	spin_unlock_irqrestore(&dev->event_lock, flags);
>  
>  	kfree(file->driver_priv);
> 

Re: [PATCH 1/6] drm/exynos: remove leftover code using event_list

[Gustavo Padovan]

2015-01-30 Joonyoung Shim <jy0922.shim@samsung.com>:

> +Cc Inki,
> 
> Hi,
> 
> On 01/23/2015 09:42 PM, Gustavo Padovan wrote:
> > From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> > 
> > The drm_file event_list hasn't been used anymore by exynos, so we don't
> > need any code to clean it.
> > 
> 
> No, it is used from drm core e.g. drm_irq.c file.

You are right, I'll drop this patch.

	Gustavo