Re: [PATCH 4/8] drm/i915: Clean up the sprite modifier checks

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On Fri, Dec 22, 2017 at 09:22:27PM +0200, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
> 
> Split the g4x and snb cases into separate functions to match how we deal
> with all other platforms. Also sort the switch cases to match the format
> lists we've declared earlier, to ease comparisons.
> 
> Cc: Ben Widawsky <ben@xxxxxxxxxxxx>
> Cc: Jason Ekstrand <jason@xxxxxxxxxxxxxx>
> Cc: Daniel Stone <daniels@xxxxxxxxxxxxx>
> Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>

> ---
>  drivers/gpu/drm/i915/intel_sprite.c | 48 ++++++++++++++++++++++---------------
>  1 file changed, 29 insertions(+), 19 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index 51bd79ad647a..349be8134c76 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1169,12 +1169,9 @@ static const uint64_t skl_plane_format_modifiers[] = {
>  	DRM_FORMAT_MOD_INVALID
>  };
>  
> -static bool g4x_sprite_plane_format_mod_supported(struct drm_plane *plane,
> -						  uint32_t format,
> -						  uint64_t modifier)
> +static bool g4x_mod_supported(uint32_t format, uint64_t modifier)
>  {
>  	switch (format) {
> -	case DRM_FORMAT_XBGR8888:
>  	case DRM_FORMAT_XRGB8888:
>  	case DRM_FORMAT_YUYV:
>  	case DRM_FORMAT_YVYU:
> @@ -1189,22 +1186,38 @@ static bool g4x_sprite_plane_format_mod_supported(struct drm_plane *plane,
>  	}
>  }
>  
> -static bool vlv_sprite_plane_format_mod_supported(struct drm_plane *plane,
> -						  uint32_t format,
> -						  uint64_t modifier)
> +static bool snb_mod_supported(uint32_t format, uint64_t modifier)
>  {
>  	switch (format) {
> +	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_XBGR8888:
>  	case DRM_FORMAT_YUYV:
>  	case DRM_FORMAT_YVYU:
>  	case DRM_FORMAT_UYVY:
>  	case DRM_FORMAT_VYUY:
> +		if (modifier == DRM_FORMAT_MOD_LINEAR ||
> +		    modifier == I915_FORMAT_MOD_X_TILED)
> +			return true;
> +		/* fall through */
> +	default:
> +		return false;
> +	}
> +}
> +
> +static bool vlv_mod_supported(uint32_t format, uint64_t modifier)
> +{
> +	switch (format) {
>  	case DRM_FORMAT_RGB565:
> -	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_ABGR8888:
>  	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_XRGB8888:
>  	case DRM_FORMAT_XBGR2101010:
>  	case DRM_FORMAT_ABGR2101010:
> -	case DRM_FORMAT_XBGR8888:
> -	case DRM_FORMAT_ABGR8888:
> +	case DRM_FORMAT_YUYV:
> +	case DRM_FORMAT_YVYU:
> +	case DRM_FORMAT_UYVY:
> +	case DRM_FORMAT_VYUY:
>  		if (modifier == DRM_FORMAT_MOD_LINEAR ||
>  		    modifier == I915_FORMAT_MOD_X_TILED)
>  			return true;
> @@ -1214,11 +1227,8 @@ static bool vlv_sprite_plane_format_mod_supported(struct drm_plane *plane,
>  	}
>  }
>  
> -static bool skl_sprite_plane_format_mod_supported(struct drm_plane *plane,
> -						  uint32_t format,
> -						  uint64_t modifier)
> +static bool skl_mod_supported(uint32_t format, uint64_t modifier)
>  {
> -	/* This is the same as primary plane since SKL has universal planes */
>  	switch (format) {
>  	case DRM_FORMAT_XRGB8888:
>  	case DRM_FORMAT_XBGR8888:
> @@ -1259,13 +1269,13 @@ static bool intel_sprite_plane_format_mod_supported(struct drm_plane *plane,
>  		return false;
>  
>  	if (INTEL_GEN(dev_priv) >= 9)
> -		return skl_sprite_plane_format_mod_supported(plane, format, modifier);
> +		return skl_mod_supported(format, modifier);
>  	else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
> -		return vlv_sprite_plane_format_mod_supported(plane, format, modifier);
> +		return vlv_mod_supported(format, modifier);
> +	else if (INTEL_GEN(dev_priv) >= 6)
> +		return snb_mod_supported(format, modifier);
>  	else
> -		return g4x_sprite_plane_format_mod_supported(plane, format, modifier);
> -
> -	unreachable();
> +		return g4x_mod_supported(format, modifier);
>  }
>  
>  static const struct drm_plane_funcs intel_sprite_plane_funcs = {
> -- 
> 2.13.6
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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