diff mbox series

drm: renesas: rcar-du: Add drm_panic support for non-vsp

Message ID b633568d2e3f405b21debdd60854fe39780254d6.1716816897.git.geert+renesas@glider.be (mailing list archive)
State New
Delegated to: Kieran Bingham
Headers show
Series drm: renesas: rcar-du: Add drm_panic support for non-vsp | expand

Commit Message

Geert Uytterhoeven May 27, 2024, 1:35 p.m. UTC
Add support for the drm_panic module for DU variants not using the
VSP-compositor, to display a message on the screen when a kernel panic
occurs.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
Tested on Koelsch (R-Car M2-W).

Support for DU variants using the VSP-compositor is more convoluted,
and left to the DU experts.
---
 drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

Comments

Jocelyn Falempe May 28, 2024, 7:23 a.m. UTC | #1
Hi,

On 27/05/2024 15:35, Geert Uytterhoeven wrote:
> Add support for the drm_panic module for DU variants not using the
> VSP-compositor, to display a message on the screen when a kernel panic
> occurs.

Thanks for your patch, I'm pleased that you find drm_panic useful.

That looks good to me.

Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> Tested on Koelsch (R-Car M2-W).
> 
> Support for DU variants using the VSP-compositor is more convoluted,
> and left to the DU experts.
> ---
>   drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 14 ++++++++++++--
>   1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> index e445fac8e0b46c21..c546ab0805d656f6 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> @@ -680,6 +680,12 @@ static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
>   	.atomic_update = rcar_du_plane_atomic_update,
>   };
>   
> +static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
> +	.atomic_check = rcar_du_plane_atomic_check,
> +	.atomic_update = rcar_du_plane_atomic_update,
> +	.get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
> +};
> +
>   static struct drm_plane_state *
>   rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
>   {
> @@ -812,8 +818,12 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
>   		if (ret < 0)
>   			return ret;
>   
> -		drm_plane_helper_add(&plane->plane,
> -				     &rcar_du_plane_helper_funcs);
> +		if (type == DRM_PLANE_TYPE_PRIMARY)
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_primary_plane_helper_funcs);
> +		else
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_plane_helper_funcs);
>   
>   		drm_plane_create_alpha_property(&plane->plane);
>
Laurent Pinchart May 29, 2024, 1:04 a.m. UTC | #2
Hi Geert,

Thank you for the patch.

On Mon, May 27, 2024 at 03:35:49PM +0200, Geert Uytterhoeven wrote:
> Add support for the drm_panic module for DU variants not using the
> VSP-compositor, to display a message on the screen when a kernel panic
> occurs.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> ---
> Tested on Koelsch (R-Car M2-W).
> 
> Support for DU variants using the VSP-compositor is more convoluted,
> and left to the DU experts.

That's not high on my priority list, so if anyone wants to play, be my
guest :-)

> ---
>  drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> index e445fac8e0b46c21..c546ab0805d656f6 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> @@ -680,6 +680,12 @@ static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
>  	.atomic_update = rcar_du_plane_atomic_update,
>  };
>  
> +static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
> +	.atomic_check = rcar_du_plane_atomic_check,
> +	.atomic_update = rcar_du_plane_atomic_update,
> +	.get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
> +};
> +
>  static struct drm_plane_state *
>  rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
>  {
> @@ -812,8 +818,12 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
>  		if (ret < 0)
>  			return ret;
>  
> -		drm_plane_helper_add(&plane->plane,
> -				     &rcar_du_plane_helper_funcs);
> +		if (type == DRM_PLANE_TYPE_PRIMARY)
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_primary_plane_helper_funcs);
> +		else
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_plane_helper_funcs);

Same comment as for the shmobile-drm patch. Let's discuss it there.

>  
>  		drm_plane_create_alpha_property(&plane->plane);
>
Sui Jingfeng May 29, 2024, 11:45 a.m. UTC | #3
Hi,


On 5/27/24 21:35, Geert Uytterhoeven wrote:
> Add support for the drm_panic module for DU variants not using the
> VSP-compositor, to display a message on the screen when a kernel panic
> occurs.
> 
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>

After all concerns resolved:


Acked-by: Sui Jingfeng <sui.jingfeng@linux.dev>

> ---
> Tested on Koelsch (R-Car M2-W).
> 
> Support for DU variants using the VSP-compositor is more convoluted,
> and left to the DU experts.
> ---
>   drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c | 14 ++++++++++++--
>   1 file changed, 12 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> index e445fac8e0b46c21..c546ab0805d656f6 100644
> --- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> +++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
> @@ -680,6 +680,12 @@ static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
>   	.atomic_update = rcar_du_plane_atomic_update,
>   };
>   
> +static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
> +	.atomic_check = rcar_du_plane_atomic_check,
> +	.atomic_update = rcar_du_plane_atomic_update,
> +	.get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
> +};
> +
>   static struct drm_plane_state *
>   rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
>   {
> @@ -812,8 +818,12 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
>   		if (ret < 0)
>   			return ret;
>   
> -		drm_plane_helper_add(&plane->plane,
> -				     &rcar_du_plane_helper_funcs);
> +		if (type == DRM_PLANE_TYPE_PRIMARY)
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_primary_plane_helper_funcs);
> +		else
> +			drm_plane_helper_add(&plane->plane,
> +					     &rcar_du_plane_helper_funcs);


Maybe we could do some untangle, but this is not a strong requirement.
Thanks.

Best regards
Sui

>   		drm_plane_create_alpha_property(&plane->plane);
>
Maxime Ripard Sept. 24, 2024, 2:17 p.m. UTC | #4
On Mon, 27 May 2024 15:35:49 +0200, Geert Uytterhoeven wrote:
> Add support for the drm_panic module for DU variants not using the
> VSP-compositor, to display a message on the screen when a kernel panic
> occurs.
> 
> 

Applied to misc/kernel.git (drm-misc-next).

Thanks!
Maxime
diff mbox series

Patch

diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
index e445fac8e0b46c21..c546ab0805d656f6 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_plane.c
@@ -680,6 +680,12 @@  static const struct drm_plane_helper_funcs rcar_du_plane_helper_funcs = {
 	.atomic_update = rcar_du_plane_atomic_update,
 };
 
+static const struct drm_plane_helper_funcs rcar_du_primary_plane_helper_funcs = {
+	.atomic_check = rcar_du_plane_atomic_check,
+	.atomic_update = rcar_du_plane_atomic_update,
+	.get_scanout_buffer = drm_fb_dma_get_scanout_buffer,
+};
+
 static struct drm_plane_state *
 rcar_du_plane_atomic_duplicate_state(struct drm_plane *plane)
 {
@@ -812,8 +818,12 @@  int rcar_du_planes_init(struct rcar_du_group *rgrp)
 		if (ret < 0)
 			return ret;
 
-		drm_plane_helper_add(&plane->plane,
-				     &rcar_du_plane_helper_funcs);
+		if (type == DRM_PLANE_TYPE_PRIMARY)
+			drm_plane_helper_add(&plane->plane,
+					     &rcar_du_primary_plane_helper_funcs);
+		else
+			drm_plane_helper_add(&plane->plane,
+					     &rcar_du_plane_helper_funcs);
 
 		drm_plane_create_alpha_property(&plane->plane);