diff mbox

[v8,04/14] drm/exynos: atomic phase 1: add .mode_set_nofb() callback

Message ID 1432760183-4342-5-git-send-email-gustavo@padovan.org (mailing list archive)
State New, archived
Headers show

Commit Message

Gustavo Padovan May 27, 2015, 8:56 p.m. UTC
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

The new atomic infrastructure needs the .mode_set_nofb() callback to
update CRTC timings before setting any plane.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
---
 drivers/gpu/drm/exynos/exynos_drm_crtc.c | 64 +++++---------------------------
 1 file changed, 9 insertions(+), 55 deletions(-)

Comments

Joonyoung Shim May 28, 2015, 8:24 a.m. UTC | #1
On 05/28/2015 05:56 AM, Gustavo Padovan wrote:
> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> 
> The new atomic infrastructure needs the .mode_set_nofb() callback to
> update CRTC timings before setting any plane.
> 
> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
> Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
> ---
>  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 64 +++++---------------------------
>  1 file changed, 9 insertions(+), 55 deletions(-)
> 
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> index ba44c9b..c524f0c 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
> @@ -62,9 +62,6 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
>  
>  	if (exynos_crtc->ops->win_commit)
>  		exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
> -
> -	if (exynos_crtc->ops->commit)
> -		exynos_crtc->ops->commit(exynos_crtc);
>  }
>  
>  static bool
> @@ -81,60 +78,16 @@ exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
>  	return true;
>  }
>  
> -static int
> -exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
> -			  struct drm_display_mode *adjusted_mode, int x, int y,
> -			  struct drm_framebuffer *old_fb)
> -{
> -	struct drm_framebuffer *fb = crtc->primary->fb;
> -	unsigned int crtc_w;
> -	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));

Let's apply using crtc->state->adjusted_mode instead of crtc->mode on
exynos drm.

> -
> -	ret = exynos_check_plane(crtc->primary, fb);
> -	if (ret < 0)
> -		return ret;
> -
> -	crtc_w = fb->width - x;
> -	crtc_h = fb->height - y;
> -	exynos_plane_mode_set(crtc->primary, crtc, fb, 0, 0,
> -			      crtc_w, crtc_h, x, y, crtc_w, crtc_h);
> -
> -	return 0;
> -}
> -
> -static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
> -					  struct drm_framebuffer *old_fb)
> +static void
> +exynos_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
>  {
>  	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
> -	struct drm_framebuffer *fb = crtc->primary->fb;
> -	unsigned int crtc_w;
> -	unsigned int crtc_h;
> -	int ret;
> -
> -	/* when framebuffer changing is requested, crtc's dpms should be on */
> -	if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
> -		DRM_ERROR("failed framebuffer changing request.\n");
> -		return -EPERM;
> -	}
>  
> -	ret = exynos_check_plane(crtc->primary, fb);
> -	if (ret)
> -		return ret;
> -
> -	crtc_w = fb->width - x;
> -	crtc_h = fb->height - y;
> -	exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
> -			    crtc_w, crtc_h, x << 16, y << 16,
> -			    crtc_w << 16, crtc_h << 16);
> +	if (WARN_ON(!crtc->state))
> +		return;

crtc->state cannot be NULL if we use drm_helper_crtc_mode_set.

>  
> -	return 0;
> +	if (exynos_crtc->ops->commit)
> +		exynos_crtc->ops->commit(exynos_crtc);
>  }
>  
>  static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
> @@ -159,8 +112,9 @@ static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
>  	.prepare	= exynos_drm_crtc_prepare,
>  	.commit		= exynos_drm_crtc_commit,
>  	.mode_fixup	= exynos_drm_crtc_mode_fixup,
> -	.mode_set	= exynos_drm_crtc_mode_set,
> -	.mode_set_base	= exynos_drm_crtc_mode_set_base,
> +	.mode_set	= drm_helper_crtc_mode_set,
> +	.mode_set_nofb	= exynos_drm_crtc_mode_set_nofb,
> +	.mode_set_base	= drm_helper_crtc_mode_set_base,
>  	.disable	= exynos_drm_crtc_disable,
>  };
>  
>
Joonyoung Shim May 29, 2015, 6:21 a.m. UTC | #2
On 05/28/2015 05:24 PM, Joonyoung Shim wrote:
> On 05/28/2015 05:56 AM, Gustavo Padovan wrote:
>> From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>>
>> The new atomic infrastructure needs the .mode_set_nofb() callback to
>> update CRTC timings before setting any plane.
>>
>> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
>> Reviewed-by: Joonyoung Shim <jy0922.shim@samsung.com>
>> Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
>> ---
>>  drivers/gpu/drm/exynos/exynos_drm_crtc.c | 64 +++++---------------------------
>>  1 file changed, 9 insertions(+), 55 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>> index ba44c9b..c524f0c 100644
>> --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>> +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
>> @@ -62,9 +62,6 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
>>  
>>  	if (exynos_crtc->ops->win_commit)
>>  		exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
>> -
>> -	if (exynos_crtc->ops->commit)
>> -		exynos_crtc->ops->commit(exynos_crtc);
>>  }
>>  
>>  static bool
>> @@ -81,60 +78,16 @@ exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
>>  	return true;
>>  }
>>  
>> -static int
>> -exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
>> -			  struct drm_display_mode *adjusted_mode, int x, int y,
>> -			  struct drm_framebuffer *old_fb)
>> -{
>> -	struct drm_framebuffer *fb = crtc->primary->fb;
>> -	unsigned int crtc_w;
>> -	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));
> 
> Let's apply using crtc->state->adjusted_mode instead of crtc->mode on
> exynos drm.
> 

I will make a patch for this, could you rebase from 05/18 of your
patchset on the patch if no any problem?
diff mbox

Patch

diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index ba44c9b..c524f0c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -62,9 +62,6 @@  static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
 
 	if (exynos_crtc->ops->win_commit)
 		exynos_crtc->ops->win_commit(exynos_crtc, exynos_plane->zpos);
-
-	if (exynos_crtc->ops->commit)
-		exynos_crtc->ops->commit(exynos_crtc);
 }
 
 static bool
@@ -81,60 +78,16 @@  exynos_drm_crtc_mode_fixup(struct drm_crtc *crtc,
 	return true;
 }
 
-static int
-exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
-			  struct drm_display_mode *adjusted_mode, int x, int y,
-			  struct drm_framebuffer *old_fb)
-{
-	struct drm_framebuffer *fb = crtc->primary->fb;
-	unsigned int crtc_w;
-	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;
-
-	crtc_w = fb->width - x;
-	crtc_h = fb->height - y;
-	exynos_plane_mode_set(crtc->primary, crtc, fb, 0, 0,
-			      crtc_w, crtc_h, x, y, crtc_w, crtc_h);
-
-	return 0;
-}
-
-static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
-					  struct drm_framebuffer *old_fb)
+static void
+exynos_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
 {
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
-	struct drm_framebuffer *fb = crtc->primary->fb;
-	unsigned int crtc_w;
-	unsigned int crtc_h;
-	int ret;
-
-	/* when framebuffer changing is requested, crtc's dpms should be on */
-	if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) {
-		DRM_ERROR("failed framebuffer changing request.\n");
-		return -EPERM;
-	}
 
-	ret = exynos_check_plane(crtc->primary, fb);
-	if (ret)
-		return ret;
-
-	crtc_w = fb->width - x;
-	crtc_h = fb->height - y;
-	exynos_update_plane(crtc->primary, crtc, fb, 0, 0,
-			    crtc_w, crtc_h, x << 16, y << 16,
-			    crtc_w << 16, crtc_h << 16);
+	if (WARN_ON(!crtc->state))
+		return;
 
-	return 0;
+	if (exynos_crtc->ops->commit)
+		exynos_crtc->ops->commit(exynos_crtc);
 }
 
 static void exynos_drm_crtc_disable(struct drm_crtc *crtc)
@@ -159,8 +112,9 @@  static struct drm_crtc_helper_funcs exynos_crtc_helper_funcs = {
 	.prepare	= exynos_drm_crtc_prepare,
 	.commit		= exynos_drm_crtc_commit,
 	.mode_fixup	= exynos_drm_crtc_mode_fixup,
-	.mode_set	= exynos_drm_crtc_mode_set,
-	.mode_set_base	= exynos_drm_crtc_mode_set_base,
+	.mode_set	= drm_helper_crtc_mode_set,
+	.mode_set_nofb	= exynos_drm_crtc_mode_set_nofb,
+	.mode_set_base	= drm_helper_crtc_mode_set_base,
 	.disable	= exynos_drm_crtc_disable,
 };