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

Aditya Swarup aditya.swarup at intel.com
Fri Oct 23 00:17:00 UTC 2020


On 10/16/20 4:40 PM, Aditya Swarup wrote:
> 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>
Hi Ville

Are you going to push this patch to drm-tip or are you planning to rework this patch?
This patch simplifies the max/min plane width plane assignment and fixes the NV12 aux surface bug
and is good enough to push.

Regards,
Aditya Swarup
>> ---
>>  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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