Re: [PATCH 13/14] drm/i915: Add NV12 as supported format for sprite plane

[Kristian Kristensen <hoegsberg@gmail.com>]

Vidya Srinivas <vidya.srinivas@intel.com> writes:

> From: Chandra Konduru <chandra.konduru@intel.com>
>
> This patch adds NV12 to list of supported formats for sprite plane.
>
> v2: Rebased (me)
>
> v3: Review comments by Ville addressed
> 	- Removed skl_plane_formats_with_nv12 and added
> 	NV12 case in existing skl_plane_formats
> 	- Added the 10bpc RGB formats
>
> v4: Addressed review comments from Clinton A Taylor
> 	"Why are we adding 10 bit RGB formats with the NV12 series patches?
> 	Trying to set XR30 or AB30 results in error returned even though
> 	the modes are advertised for the planes"
> 	- Removed 10bit RGB formats added previously with NV12 series
>
> v5: Missed the Tested-by/Reviewed-by in the previous series
> 	Adding the same to commit message in this version.
> 	Addressed review comments from Clinton A Taylor
> 	"Why are we adding 10 bit RGB formats with the NV12 series patches?
> 	Trying to set XR30 or AB30 results in error returned even though
> 	the modes are advertised for the planes"
> 	- Previous version has 10bit RGB format removed from VLV formats
> 	by mistake. Fixing that in this version.
> 	Removed 10bit RGB formats added previously with NV12 series
> 	for SKL.
>
> v6: Addressed review comments by Ville
> 	Restricting the NV12 to BXT and PIPE A and B
>
> v7: Rebased (me)
>
> v8: Rebased (me)
> 	Restricting NV12 changes to BXT and KBL
> 	Restricting NV12 changes for plane 0 (overlay)
>
> Tested-by: Clinton Taylor <clinton.a.taylor@intel.com>
> Reviewed-by: Clinton Taylor <clinton.a.taylor@intel.com>
> Signed-off-by: Chandra Konduru <chandra.konduru@intel.com>
> Signed-off-by: Nabendu Maiti <nabendu.bikash.maiti@intel.com>
> Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> ---
>  drivers/gpu/drm/i915/intel_sprite.c | 24 +++++++++++++++++++++---
>  1 file changed, 21 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 6f98bc5..7e9cfe1 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1196,6 +1196,19 @@ static bool intel_sprite_plane_format_mod_supported(struct drm_plane *plane,
>          .format_mod_supported = intel_sprite_plane_format_mod_supported,
>  };
>  
> +static uint32_t nv12_plane_formats[] = {
> +	DRM_FORMAT_RGB565,
> +	DRM_FORMAT_ABGR8888,
> +	DRM_FORMAT_ARGB8888,
> +	DRM_FORMAT_XBGR8888,
> +	DRM_FORMAT_XRGB8888,
> +	DRM_FORMAT_YUYV,
> +	DRM_FORMAT_YVYU,
> +	DRM_FORMAT_UYVY,
> +	DRM_FORMAT_VYUY,
> +	DRM_FORMAT_NV12,
> +};

As for intel_display.c you need to extend
skl_sprite_plane_format_mod_supported() with a case for DRM_FORMAT_NV12
so that KMS can advertise the supported modifiers for NV12.

Kristian


> +
>  struct intel_plane *
>  intel_sprite_plane_create(struct drm_i915_private *dev_priv,
>  			  enum pipe pipe, int plane)
> @@ -1238,9 +1251,14 @@ struct intel_plane *
>  
>  		intel_plane->update_plane = skl_update_plane;
>  		intel_plane->disable_plane = skl_disable_plane;
> -
> -		plane_formats = skl_plane_formats;
> -		num_plane_formats = ARRAY_SIZE(skl_plane_formats);
> +		if ((IS_BROXTON(dev_priv) || IS_KABYLAKE(dev_priv)) &&
> +			(pipe == PIPE_A || pipe == PIPE_B) && plane == 0) {
> +			plane_formats = nv12_plane_formats;
> +			num_plane_formats = ARRAY_SIZE(nv12_plane_formats);
> +		} else {
> +			plane_formats = skl_plane_formats;
> +			num_plane_formats = ARRAY_SIZE(skl_plane_formats);
> +		}
>  		modifiers = skl_plane_format_modifiers;
>  	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
>  		intel_plane->can_scale = false;
> -- 
> 1.9.1
>
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