[Intel-gfx] [PATCH] drm/i915: Add plane .{min, max}_width() and .max_height() vfuncs

Aditya Swarup aditya.swarup at intel.com
Fri Oct 16 23:40:55 UTC 2020


On 9/24/20 11:51 AM, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> Reduce this maintenance nightmare a bit by converting the plane
> min/max width/height stuff into vfuncs.
> 
> Now, if I could just think of a nice way to also use this for
> intel_mode_valid_max_plane_size()...
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
LGTM..
Reviewed-by: Aditya Swarup <aditya.swarup at intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_display.c  | 194 +++++-------------
>  .../drm/i915/display/intel_display_types.h    |   9 +
>  drivers/gpu/drm/i915/display/intel_sprite.c   | 140 +++++++++++++
>  3 files changed, 196 insertions(+), 147 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
> index 5a9d933e425a..a823d406f0ee 100644
> --- a/drivers/gpu/drm/i915/display/intel_display.c
> +++ b/drivers/gpu/drm/i915/display/intel_display.c
> @@ -3696,127 +3696,6 @@ intel_find_initial_plane_obj(struct intel_crtc *intel_crtc,
>  		  &to_intel_frontbuffer(fb)->bits);
>  }
>  
> -static int skl_max_plane_width(const struct drm_framebuffer *fb,
> -			       int color_plane,
> -			       unsigned int rotation)
> -{
> -	int cpp = fb->format->cpp[color_plane];
> -
> -	switch (fb->modifier) {
> -	case DRM_FORMAT_MOD_LINEAR:
> -	case I915_FORMAT_MOD_X_TILED:
> -		/*
> -		 * Validated limit is 4k, but has 5k should
> -		 * work apart from the following features:
> -		 * - Ytile (already limited to 4k)
> -		 * - FP16 (already limited to 4k)
> -		 * - render compression (already limited to 4k)
> -		 * - KVMR sprite and cursor (don't care)
> -		 * - horizontal panning (TODO verify this)
> -		 * - pipe and plane scaling (TODO verify this)
> -		 */
> -		if (cpp == 8)
> -			return 4096;
> -		else
> -			return 5120;
> -	case I915_FORMAT_MOD_Y_TILED_CCS:
> -	case I915_FORMAT_MOD_Yf_TILED_CCS:
> -	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
> -		/* FIXME AUX plane? */
> -	case I915_FORMAT_MOD_Y_TILED:
> -	case I915_FORMAT_MOD_Yf_TILED:
> -		if (cpp == 8)
> -			return 2048;
> -		else
> -			return 4096;
> -	default:
> -		MISSING_CASE(fb->modifier);
> -		return 2048;
> -	}
> -}
> -
> -static int glk_max_plane_width(const struct drm_framebuffer *fb,
> -			       int color_plane,
> -			       unsigned int rotation)
> -{
> -	int cpp = fb->format->cpp[color_plane];
> -
> -	switch (fb->modifier) {
> -	case DRM_FORMAT_MOD_LINEAR:
> -	case I915_FORMAT_MOD_X_TILED:
> -		if (cpp == 8)
> -			return 4096;
> -		else
> -			return 5120;
> -	case I915_FORMAT_MOD_Y_TILED_CCS:
> -	case I915_FORMAT_MOD_Yf_TILED_CCS:
> -		/* FIXME AUX plane? */
> -	case I915_FORMAT_MOD_Y_TILED:
> -	case I915_FORMAT_MOD_Yf_TILED:
> -		if (cpp == 8)
> -			return 2048;
> -		else
> -			return 5120;
> -	default:
> -		MISSING_CASE(fb->modifier);
> -		return 2048;
> -	}
> -}
> -
> -static int icl_min_plane_width(const struct drm_framebuffer *fb)
> -{
> -	/* Wa_14011264657, Wa_14011050563: gen11+ */
> -	switch (fb->format->format) {
> -	case DRM_FORMAT_C8:
> -		return 18;
> -	case DRM_FORMAT_RGB565:
> -		return 10;
> -	case DRM_FORMAT_XRGB8888:
> -	case DRM_FORMAT_XBGR8888:
> -	case DRM_FORMAT_ARGB8888:
> -	case DRM_FORMAT_ABGR8888:
> -	case DRM_FORMAT_XRGB2101010:
> -	case DRM_FORMAT_XBGR2101010:
> -	case DRM_FORMAT_ARGB2101010:
> -	case DRM_FORMAT_ABGR2101010:
> -	case DRM_FORMAT_XVYU2101010:
> -	case DRM_FORMAT_Y212:
> -	case DRM_FORMAT_Y216:
> -		return 6;
> -	case DRM_FORMAT_NV12:
> -		return 20;
> -	case DRM_FORMAT_P010:
> -	case DRM_FORMAT_P012:
> -	case DRM_FORMAT_P016:
> -		return 12;
> -	case DRM_FORMAT_XRGB16161616F:
> -	case DRM_FORMAT_XBGR16161616F:
> -	case DRM_FORMAT_ARGB16161616F:
> -	case DRM_FORMAT_ABGR16161616F:
> -	case DRM_FORMAT_XVYU12_16161616:
> -	case DRM_FORMAT_XVYU16161616:
> -		return 4;
> -	default:
> -		return 1;
> -	}
> -}
> -
> -static int icl_max_plane_width(const struct drm_framebuffer *fb,
> -			       int color_plane,
> -			       unsigned int rotation)
> -{
> -	return 5120;
> -}
> -
> -static int skl_max_plane_height(void)
> -{
> -	return 4096;
> -}
> -
> -static int icl_max_plane_height(void)
> -{
> -	return 4320;
> -}
>  
>  static bool
>  skl_check_main_ccs_coordinates(struct intel_plane_state *plane_state,
> @@ -3874,35 +3753,55 @@ intel_plane_fence_y_offset(const struct intel_plane_state *plane_state)
>  	return y;
>  }
>  
> +static int intel_plane_min_width(struct intel_plane *plane,
> +				 const struct drm_framebuffer *fb,
> +				 int color_plane,
> +				 unsigned int rotation)
> +{
> +	if (plane->min_width)
> +		return plane->min_width(fb, color_plane, rotation);
> +	else
> +		return 1;
> +}
> +
> +static int intel_plane_max_width(struct intel_plane *plane,
> +				 const struct drm_framebuffer *fb,
> +				 int color_plane,
> +				 unsigned int rotation)
> +{
> +	if (plane->max_width)
> +		return plane->max_width(fb, color_plane, rotation);
> +	else
> +		return INT_MAX;
> +}
> +
> +static int intel_plane_max_height(struct intel_plane *plane,
> +				  const struct drm_framebuffer *fb,
> +				  int color_plane,
> +				  unsigned int rotation)
> +{
> +	if (plane->max_height)
> +		return plane->max_height(fb, color_plane, rotation);
> +	else
> +		return INT_MAX;
> +}
> +
>  static int skl_check_main_surface(struct intel_plane_state *plane_state)
>  {
> -	struct drm_i915_private *dev_priv = to_i915(plane_state->uapi.plane->dev);
> +	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
> +	struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
>  	const struct drm_framebuffer *fb = plane_state->hw.fb;
>  	unsigned int rotation = plane_state->hw.rotation;
>  	int x = plane_state->uapi.src.x1 >> 16;
>  	int y = plane_state->uapi.src.y1 >> 16;
>  	int w = drm_rect_width(&plane_state->uapi.src) >> 16;
>  	int h = drm_rect_height(&plane_state->uapi.src) >> 16;
> -	int max_width, min_width, max_height;
> -	u32 alignment, offset;
> +	int min_width = intel_plane_min_width(plane, fb, 0, rotation);
> +	int max_width = intel_plane_max_width(plane, fb, 0, rotation);
> +	int max_height = intel_plane_max_height(plane, fb, 0, rotation);
>  	int aux_plane = intel_main_to_aux_plane(fb, 0);
>  	u32 aux_offset = plane_state->color_plane[aux_plane].offset;
> -
> -	if (INTEL_GEN(dev_priv) >= 11) {
> -		max_width = icl_max_plane_width(fb, 0, rotation);
> -		min_width = icl_min_plane_width(fb);
> -	} else if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
> -		max_width = glk_max_plane_width(fb, 0, rotation);
> -		min_width = 1;
> -	} else {
> -		max_width = skl_max_plane_width(fb, 0, rotation);
> -		min_width = 1;
> -	}
> -
> -	if (INTEL_GEN(dev_priv) >= 11)
> -		max_height = icl_max_plane_height();
> -	else
> -		max_height = skl_max_plane_height();
> +	u32 alignment, offset;
>  
>  	if (w > max_width || w < min_width || h > max_height) {
>  		drm_dbg_kms(&dev_priv->drm,
> @@ -3985,22 +3884,19 @@ static int skl_check_main_surface(struct intel_plane_state *plane_state)
>  
>  static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
>  {
> -	struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev);
> +	struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane);
> +	struct drm_i915_private *i915 = to_i915(plane->base.dev);
>  	const struct drm_framebuffer *fb = plane_state->hw.fb;
>  	unsigned int rotation = plane_state->hw.rotation;
>  	int uv_plane = 1;
> -	int max_width = skl_max_plane_width(fb, uv_plane, rotation);
> -	int max_height = 4096;
> +	int max_width = intel_plane_max_width(plane, fb, uv_plane, rotation);
> +	int max_height = intel_plane_max_height(plane, fb, uv_plane, rotation);
>  	int x = plane_state->uapi.src.x1 >> 17;
>  	int y = plane_state->uapi.src.y1 >> 17;
>  	int w = drm_rect_width(&plane_state->uapi.src) >> 17;
>  	int h = drm_rect_height(&plane_state->uapi.src) >> 17;
>  	u32 offset;
>  
> -	intel_add_fb_offsets(&x, &y, plane_state, uv_plane);
> -	offset = intel_plane_compute_aligned_offset(&x, &y,
> -						    plane_state, uv_plane);
> -
>  	/* FIXME not quite sure how/if these apply to the chroma plane */
>  	if (w > max_width || h > max_height) {
>  		drm_dbg_kms(&i915->drm,
> @@ -4009,6 +3905,10 @@ static int skl_check_nv12_aux_surface(struct intel_plane_state *plane_state)
>  		return -EINVAL;
>  	}
>  
> +	intel_add_fb_offsets(&x, &y, plane_state, uv_plane);
> +	offset = intel_plane_compute_aligned_offset(&x, &y,
> +						    plane_state, uv_plane);
> +
>  	if (is_ccs_modifier(fb->modifier)) {
>  		int ccs_plane = main_to_ccs_plane(fb, uv_plane);
>  		int aux_offset = plane_state->color_plane[ccs_plane].offset;
> diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
> index 3d4bf9b6a0a2..a16120508318 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_types.h
> +++ b/drivers/gpu/drm/i915/display/intel_display_types.h
> @@ -1170,6 +1170,15 @@ struct intel_plane {
>  	 * the intel_plane_state structure and accessed via plane_state.
>  	 */
>  
> +	int (*min_width)(const struct drm_framebuffer *fb,
> +			 int color_plane,
> +			 unsigned int rotation);
> +	int (*max_width)(const struct drm_framebuffer *fb,
> +			 int color_plane,
> +			 unsigned int rotation);
> +	int (*max_height)(const struct drm_framebuffer *fb,
> +			  int color_plane,
> +			  unsigned int rotation);
>  	unsigned int (*max_stride)(struct intel_plane *plane,
>  				   u32 pixel_format, u64 modifier,
>  				   unsigned int rotation);
> diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
> index 63040cb0d4e1..d682ab1c0f70 100644
> --- a/drivers/gpu/drm/i915/display/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/display/intel_sprite.c
> @@ -393,6 +393,134 @@ static int skl_plane_min_cdclk(const struct intel_crtc_state *crtc_state,
>  	return DIV_ROUND_UP(pixel_rate * num, den);
>  }
>  
> +static int skl_plane_max_width(const struct drm_framebuffer *fb,
> +			       int color_plane,
> +			       unsigned int rotation)
> +{
> +	int cpp = fb->format->cpp[color_plane];
> +
> +	switch (fb->modifier) {
> +	case DRM_FORMAT_MOD_LINEAR:
> +	case I915_FORMAT_MOD_X_TILED:
> +		/*
> +		 * Validated limit is 4k, but has 5k should
> +		 * work apart from the following features:
> +		 * - Ytile (already limited to 4k)
> +		 * - FP16 (already limited to 4k)
> +		 * - render compression (already limited to 4k)
> +		 * - KVMR sprite and cursor (don't care)
> +		 * - horizontal panning (TODO verify this)
> +		 * - pipe and plane scaling (TODO verify this)
> +		 */
> +		if (cpp == 8)
> +			return 4096;
> +		else
> +			return 5120;
> +	case I915_FORMAT_MOD_Y_TILED_CCS:
> +	case I915_FORMAT_MOD_Yf_TILED_CCS:
> +	case I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS:
> +		/* FIXME AUX plane? */
> +	case I915_FORMAT_MOD_Y_TILED:
> +	case I915_FORMAT_MOD_Yf_TILED:
> +		if (cpp == 8)
> +			return 2048;
> +		else
> +			return 4096;
> +	default:
> +		MISSING_CASE(fb->modifier);
> +		return 2048;
> +	}
> +}
> +
> +static int glk_plane_max_width(const struct drm_framebuffer *fb,
> +			       int color_plane,
> +			       unsigned int rotation)
> +{
> +	int cpp = fb->format->cpp[color_plane];
> +
> +	switch (fb->modifier) {
> +	case DRM_FORMAT_MOD_LINEAR:
> +	case I915_FORMAT_MOD_X_TILED:
> +		if (cpp == 8)
> +			return 4096;
> +		else
> +			return 5120;
> +	case I915_FORMAT_MOD_Y_TILED_CCS:
> +	case I915_FORMAT_MOD_Yf_TILED_CCS:
> +		/* FIXME AUX plane? */
> +	case I915_FORMAT_MOD_Y_TILED:
> +	case I915_FORMAT_MOD_Yf_TILED:
> +		if (cpp == 8)
> +			return 2048;
> +		else
> +			return 5120;
> +	default:
> +		MISSING_CASE(fb->modifier);
> +		return 2048;
> +	}
> +}
> +
> +static int icl_plane_min_width(const struct drm_framebuffer *fb,
> +			       int color_plane,
> +			       unsigned int rotation)
> +{
> +	/* Wa_14011264657, Wa_14011050563: gen11+ */
> +	switch (fb->format->format) {
> +	case DRM_FORMAT_C8:
> +		return 18;
> +	case DRM_FORMAT_RGB565:
> +		return 10;
> +	case DRM_FORMAT_XRGB8888:
> +	case DRM_FORMAT_XBGR8888:
> +	case DRM_FORMAT_ARGB8888:
> +	case DRM_FORMAT_ABGR8888:
> +	case DRM_FORMAT_XRGB2101010:
> +	case DRM_FORMAT_XBGR2101010:
> +	case DRM_FORMAT_ARGB2101010:
> +	case DRM_FORMAT_ABGR2101010:
> +	case DRM_FORMAT_XVYU2101010:
> +	case DRM_FORMAT_Y212:
> +	case DRM_FORMAT_Y216:
> +		return 6;
> +	case DRM_FORMAT_NV12:
> +		return 20;
> +	case DRM_FORMAT_P010:
> +	case DRM_FORMAT_P012:
> +	case DRM_FORMAT_P016:
> +		return 12;
> +	case DRM_FORMAT_XRGB16161616F:
> +	case DRM_FORMAT_XBGR16161616F:
> +	case DRM_FORMAT_ARGB16161616F:
> +	case DRM_FORMAT_ABGR16161616F:
> +	case DRM_FORMAT_XVYU12_16161616:
> +	case DRM_FORMAT_XVYU16161616:
> +		return 4;
> +	default:
> +		return 1;
> +	}
> +}
> +
> +static int icl_plane_max_width(const struct drm_framebuffer *fb,
> +			       int color_plane,
> +			       unsigned int rotation)
> +{
> +	return 5120;
> +}
> +
> +static int skl_plane_max_height(const struct drm_framebuffer *fb,
> +				int color_plane,
> +				unsigned int rotation)
> +{
> +	return 4096;
> +}
> +
> +static int icl_plane_max_height(const struct drm_framebuffer *fb,
> +				int color_plane,
> +				unsigned int rotation)
> +{
> +	return 4320;
> +}
> +
>  static unsigned int
>  skl_plane_max_stride(struct intel_plane *plane,
>  		     u32 pixel_format, u64 modifier,
> @@ -3083,6 +3211,18 @@ skl_universal_plane_create(struct drm_i915_private *dev_priv,
>  		fbc->possible_framebuffer_bits |= plane->frontbuffer_bit;
>  	}
>  
> +	if (INTEL_GEN(dev_priv) >= 11) {
> +		plane->min_width = icl_plane_min_width;
> +		plane->max_width = icl_plane_max_width;
> +		plane->max_height = icl_plane_max_height;
> +	} else if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv)) {
> +		plane->max_width = glk_plane_max_width;
> +		plane->max_height = skl_plane_max_height;
> +	} else {
> +		plane->max_width = skl_plane_max_width;
> +		plane->max_height = skl_plane_max_height;
> +	}
> +
>  	plane->max_stride = skl_plane_max_stride;
>  	plane->update_plane = skl_update_plane;
>  	plane->disable_plane = skl_disable_plane;
> 



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