Re: [PATCH 6/6] [v4] drm/i915: Add support for CCS modifiers

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On Tuesday, August 1, 2017 9:58:17 AM PDT Ben Widawsky wrote:
> v2:
>   - Support sprite plane.
>   - Support pipe C/D limitation on GEN9.
> 
> v3:
>   - Rename structure (Ville)
>   - Handle GLK (Ville)
> 
> v4:
>   - Fix PIPE_C check, introduced in v2 (Daniel)
>   - Whitespace fix (Daniel)
> 
> Cc: Daniel Stone <daniels@xxxxxxxxxxxxx>
> Cc: Kristian Høgsberg <krh@xxxxxxxxxxxxx>
> Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/intel_display.c | 30 +++++++++++++++++++++++++++---
>  drivers/gpu/drm/i915/intel_sprite.c  | 28 +++++++++++++++++++++++++++-
>  2 files changed, 54 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index ad49b99ef25f..0dc9f40edc7e 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -93,7 +93,17 @@ static const uint32_t skl_primary_formats[] = {
>  	DRM_FORMAT_VYUY,
>  };
>  
> -static const uint64_t skl_format_modifiers[] = {
> +static const uint64_t skl_format_modifiers_noccs[] = {
> +	I915_FORMAT_MOD_Yf_TILED,
> +	I915_FORMAT_MOD_Y_TILED,
> +	I915_FORMAT_MOD_X_TILED,
> +	DRM_FORMAT_MOD_LINEAR,
> +	DRM_FORMAT_MOD_INVALID
> +};
> +
> +static const uint64_t skl_format_modifiers_ccs[] = {
> +	I915_FORMAT_MOD_Yf_TILED_CCS,
> +	I915_FORMAT_MOD_Y_TILED_CCS,
>  	I915_FORMAT_MOD_Yf_TILED,
>  	I915_FORMAT_MOD_Y_TILED,
>  	I915_FORMAT_MOD_X_TILED,
> @@ -13853,6 +13863,10 @@ static bool skl_mod_supported(uint32_t format, uint64_t modifier)
>  	case DRM_FORMAT_XBGR8888:
>  	case DRM_FORMAT_ARGB8888:
>  	case DRM_FORMAT_ABGR8888:
> +		if (modifier == I915_FORMAT_MOD_Yf_TILED_CCS ||
> +		    modifier == I915_FORMAT_MOD_Y_TILED_CCS)
> +			return true;
> +		/* fall through */
>  	case DRM_FORMAT_RGB565:
>  	case DRM_FORMAT_XRGB2101010:
>  	case DRM_FORMAT_XBGR2101010:
> @@ -14099,10 +14113,20 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
>  	primary->frontbuffer_bit = INTEL_FRONTBUFFER_PRIMARY(pipe);
>  	primary->check_plane = intel_check_primary_plane;
>  
> -	if (INTEL_GEN(dev_priv) >= 9) {
> +	if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
> +		intel_primary_formats = skl_primary_formats;
> +		num_formats = ARRAY_SIZE(skl_primary_formats);
> +		modifiers = skl_format_modifiers_ccs;
> +
> +		primary->update_plane = skylake_update_primary_plane;
> +		primary->disable_plane = skylake_disable_primary_plane;
> +	} else if (INTEL_GEN(dev_priv) >= 9) {
>  		intel_primary_formats = skl_primary_formats;
>  		num_formats = ARRAY_SIZE(skl_primary_formats);
> -		modifiers = skl_format_modifiers;
> +		if (pipe < PIPE_C)
> +			modifiers = skl_format_modifiers_ccs;
> +		else
> +			modifiers = skl_format_modifiers_noccs;
>  
>  		primary->update_plane = skylake_update_primary_plane;
>  		primary->disable_plane = skylake_disable_primary_plane;
> diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
> index b1cc4835b963..5a2b3f3693a6 100644
> --- a/drivers/gpu/drm/i915/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/intel_sprite.c
> @@ -1085,7 +1085,17 @@ static uint32_t skl_plane_formats[] = {
>  	DRM_FORMAT_VYUY,
>  };
>  
> +static const uint64_t skl_plane_format_modifiers_noccs[] = {
> +	I915_FORMAT_MOD_Yf_TILED,
> +	I915_FORMAT_MOD_Y_TILED,
> +	I915_FORMAT_MOD_X_TILED,
> +	DRM_FORMAT_MOD_LINEAR,
> +	DRM_FORMAT_MOD_INVALID
> +};
> +
>  static const uint64_t skl_plane_format_modifiers[] = {
> +	I915_FORMAT_MOD_Yf_TILED_CCS,
> +	I915_FORMAT_MOD_Y_TILED_CCS,
>  	I915_FORMAT_MOD_Yf_TILED,
>  	I915_FORMAT_MOD_Y_TILED,
>  	I915_FORMAT_MOD_X_TILED,
> @@ -1148,6 +1158,9 @@ static bool skl_sprite_plane_format_mod_supported(struct drm_plane *plane,
>  	case DRM_FORMAT_XBGR8888:
>  	case DRM_FORMAT_ARGB8888:
>  	case DRM_FORMAT_ABGR8888:
> +		if (modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
> +		    modifier == I915_FORMAT_MOD_Yf_TILED_CCS)
> +			return true;
>  	case DRM_FORMAT_RGB565:
>  	case DRM_FORMAT_XRGB2101010:
>  	case DRM_FORMAT_XBGR2101010:
> @@ -1230,7 +1243,7 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
>  	}
>  	intel_plane->base.state = &state->base;
>  
> -	if (INTEL_GEN(dev_priv) >= 9) {
> +	if (INTEL_GEN(dev_priv) >= 10) {

I think this should be INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv).

With that fixed, this patch would be:
Reviewed-by: Kenneth Graunke <kenneth@xxxxxxxxxxxxx>

for what it's worth (I'm not that familiar with display).

>  		intel_plane->can_scale = true;
>  		state->scaler_id = -1;
>  
> @@ -1240,6 +1253,19 @@ intel_sprite_plane_create(struct drm_i915_private *dev_priv,
>  		plane_formats = skl_plane_formats;
>  		num_plane_formats = ARRAY_SIZE(skl_plane_formats);
>  		modifiers = skl_plane_format_modifiers;
> +	} else if (INTEL_GEN(dev_priv) >= 9) {
> +		intel_plane->can_scale = true;
> +		state->scaler_id = -1;
> +
> +		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 (pipe >= PIPE_C)
> +			modifiers = skl_plane_format_modifiers_noccs;
> +		else
> +			modifiers = skl_plane_format_modifiers;
>  	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
>  		intel_plane->can_scale = false;
>  		intel_plane->max_downscale = 1;

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