diff mbox series

[2/3] drm/komeda: Add split support for scaler

Message ID 20190520104411.6092-3-james.qian.wang@arm.com (mailing list archive)
State New, archived
Headers show
Series drm/komeda: Add layer split support | expand

Commit Message

James Qian Wang May 20, 2019, 10:44 a.m. UTC
To achieve same caling effect compare with none split, the texel
calculation need to use the same scaling ratio before split, so add
"total_xxx" to pipeline to describe the hsize/vsize before split.
Update pipeline and d71_scaler_update accordingly.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
---
 .../arm/display/komeda/d71/d71_component.c    | 47 +++++++++++++++++--
 .../drm/arm/display/komeda/komeda_pipeline.h  | 19 ++++++--
 .../display/komeda/komeda_pipeline_state.c    | 21 ++++++++-
 .../gpu/drm/arm/display/komeda/komeda_plane.c |  8 ++--
 .../arm/display/komeda/komeda_wb_connector.c  |  2 +-
 5 files changed, 81 insertions(+), 16 deletions(-)

Comments

Liviu Dudau June 7, 2019, 9:46 a.m. UTC | #1
Hi James,

On Mon, May 20, 2019 at 11:44:47AM +0100, james qian wang (Arm Technology China) wrote:
> To achieve same caling effect compare with none split, the texel
> calculation need to use the same scaling ratio before split, so add
> "total_xxx" to pipeline to describe the hsize/vsize before split.
> Update pipeline and d71_scaler_update accordingly.
> 
> Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
> ---
>  .../arm/display/komeda/d71/d71_component.c    | 47 +++++++++++++++++--
>  .../drm/arm/display/komeda/komeda_pipeline.h  | 19 ++++++--
>  .../display/komeda/komeda_pipeline_state.c    | 21 ++++++++-
>  .../gpu/drm/arm/display/komeda/komeda_plane.c |  8 ++--
>  .../arm/display/komeda/komeda_wb_connector.c  |  2 +-
>  5 files changed, 81 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> index 3266bd54c936..d101a5cc2766 100644
> --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> @@ -642,23 +642,58 @@ static void d71_scaler_update(struct komeda_component *c,
>  
>  	malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize_in, st->vsize_in));
>  	malidp_write32(reg, SC_OUT_SIZE, HV_SIZE(st->hsize_out, st->vsize_out));
> +	malidp_write32(reg, SC_H_CROP, HV_CROP(st->left_crop, st->right_crop));
> +
> +	/* for right part, HW only sample the valid pixel which means the pixels
> +	 * in left_crop will be jumpped, and the first sample pixel is:
> +	 *
> +	 * dst_a = st->total_hsize_out - st->hsize_out + st->left_crop + 0.5;
> +	 *
> +	 * Then the corresponding texel in src is:
> +	 *
> +	 * h_delta_phase = st->total_hsize_in / st->total_hsize_out;
> +	 * src_a = dst_A * h_delta_phase;
> +	 *
> +	 * and h_init_phase is src_a deduct the real source start src_S;
> +	 *
> +	 * src_S = st->total_hsize_in - st->hsize_in;
> +	 * h_init_phase = src_a - src_S;
> +	 *
> +	 * And HW precision for the initial/delta_phase is 16:16 fixed point,
> +	 * the following is the simplified formula
> +	 */
> +	if (st->right_part) {
> +		u32 dst_a = st->total_hsize_out - st->hsize_out + st->left_crop;
> +
> +		if (st->en_img_enhancement)
> +			dst_a -= 1;
> +
> +		init_ph = ((st->total_hsize_in * (2 * dst_a + 1) -
> +			    2 * st->total_hsize_out * (st->total_hsize_in -
> +			    st->hsize_in)) << 15) / st->total_hsize_out;
> +	} else {
> +		init_ph = (st->total_hsize_in << 15) / st->total_hsize_out;
> +	}
>  
> -	init_ph = (st->hsize_in << 15) / st->hsize_out;
>  	malidp_write32(reg, SC_H_INIT_PH, init_ph);
>  
> -	delta_ph = (st->hsize_in << 16) / st->hsize_out;
> +	delta_ph = (st->total_hsize_in << 16) / st->total_hsize_out;
>  	malidp_write32(reg, SC_H_DELTA_PH, delta_ph);
>  
> -	init_ph = (st->vsize_in << 15) / st->vsize_out;
> +	init_ph = (st->total_vsize_in << 15) / st->vsize_out;
>  	malidp_write32(reg, SC_V_INIT_PH, init_ph);
>  
> -	delta_ph = (st->vsize_in << 16) / st->vsize_out;
> +	delta_ph = (st->total_vsize_in << 16) / st->vsize_out;
>  	malidp_write32(reg, SC_V_DELTA_PH, delta_ph);
>  
>  	ctrl = 0;
>  	ctrl |= st->en_scaling ? SC_CTRL_SCL : 0;
>  	ctrl |= st->en_alpha ? SC_CTRL_AP : 0;
>  	ctrl |= st->en_img_enhancement ? SC_CTRL_IENH : 0;
> +	/* If we use the hardware splitter we shouldn't set SC_CTRL_LS */
> +	if (st->en_split &&
> +	    state->inputs[0].component->id != KOMEDA_COMPONENT_SPLITTER)
> +		ctrl |= SC_CTRL_LS;
>  
>  	malidp_write32(reg, BLK_CONTROL, ctrl);
>  	malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0]));
> @@ -716,10 +751,12 @@ static int d71_scaler_init(struct d71_dev *d71,
>  	}
>  
>  	scaler = to_scaler(c);
> -	set_range(&scaler->hsize, 4, d71->max_line_size);
> +	set_range(&scaler->hsize, 4, 2048);
>  	set_range(&scaler->vsize, 4, 4096);
>  	scaler->max_downscaling = 6;
>  	scaler->max_upscaling = 64;
> +	scaler->scaling_split_overlap = 8;
> +	scaler->enh_split_overlap = 1;
>  
>  	malidp_write32(c->reg, BLK_CONTROL, 0);
>  
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> index c92733736799..4e1cf8fd89bf 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> @@ -247,15 +247,22 @@ struct komeda_scaler {
>  	struct malidp_range hsize, vsize;
>  	u32 max_upscaling;
>  	u32 max_downscaling;
> +	u8 scaling_split_overlap; /* split overlap for scaling */
> +	u8 enh_split_overlap; /* split overlap for image enhancement */
>  };
>  
>  struct komeda_scaler_state {
>  	struct komeda_component_state base;
>  	u16 hsize_in, vsize_in;
>  	u16 hsize_out, vsize_out;
> +	u16 total_hsize_in, total_vsize_in;
> +	u16 total_hsize_out; /* total_xxxx are size before split */
> +	u16 left_crop, right_crop;
>  	u8 en_scaling : 1,
>  	   en_alpha : 1, /* enable alpha processing */
> -	   en_img_enhancement : 1;
> +	   en_img_enhancement : 1,
> +	   en_split : 1,
> +	   right_part; /* right part of split image */

Should right_part be a 1 bit value here, same as in komeda_data_flow_cfg ?

>  };
>  
>  struct komeda_compiz {
> @@ -323,11 +330,16 @@ struct komeda_data_flow_cfg {
>  	struct komeda_component_output input;
>  	u16 in_x, in_y, in_w, in_h;
>  	u32 out_x, out_y, out_w, out_h;
> +	u16 total_in_h, total_in_w;
> +	u16 total_out_w;
> +	u16 left_crop, right_crop, overlap;
>  	u32 rot;
>  	int blending_zorder;
>  	u8 pixel_blend_mode, layer_alpha;
>  	u8 needs_scaling : 1,
> -	   needs_img_enhancement : 1;
> +	   needs_img_enhancement : 1,
> +	   needs_split : 1,
> +	   right_part : 1; /* right part of display image if split enabled */
>  };
>  
>  /** struct komeda_pipeline_funcs */
> @@ -488,6 +500,7 @@ void komeda_pipeline_disable(struct komeda_pipeline *pipe,
>  void komeda_pipeline_update(struct komeda_pipeline *pipe,
>  			    struct drm_atomic_state *old_state);
>  
> -void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow);
> +void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
> +				   struct drm_framebuffer *fb);
>  
>  #endif /* _KOMEDA_PIPELINE_H_*/
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> index fcd34164b3c2..9657dbfe0210 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> @@ -489,11 +489,19 @@ komeda_scaler_validate(void *user,
>  	st->hsize_in = dflow->in_w;
>  	st->vsize_in = dflow->in_h;
>  	st->hsize_out = dflow->out_w;
> -	st->vsize_out = dflow->out_w;
> +	st->vsize_out = dflow->out_h;
> +	st->right_crop = dflow->right_crop;
> +	st->left_crop = dflow->left_crop;
> +	st->total_vsize_in = dflow->total_in_h;
> +	st->total_hsize_in = dflow->total_in_w;
> +	st->total_hsize_out = dflow->total_out_w;
> +
>  	st->en_scaling = dflow->needs_scaling;
>  	/* Enable alpha processing if the next stage needs the pixel alpha */
>  	st->en_alpha = dflow->pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE;
>  	st->en_img_enhancement = dflow->needs_img_enhancement;
> +	st->en_split = dflow->needs_split;
> +	st->right_part = dflow->right_part;
>  
>  	komeda_component_add_input(&st->base, &dflow->input, 0);
>  	komeda_component_set_output(&dflow->input, &scaler->base, 0);
> @@ -647,14 +655,23 @@ komeda_timing_ctrlr_validate(struct komeda_timing_ctrlr *ctrlr,
>  	return 0;
>  }
>  
> -void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow)
> +void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
> +				   struct drm_framebuffer *fb)
>  {
>  	u32 w = dflow->in_w;
>  	u32 h = dflow->in_h;
>  
> +	dflow->total_in_w = dflow->in_w;
> +	dflow->total_in_h = dflow->in_h;
> +	dflow->total_out_w = dflow->out_w;
> +
>  	if (drm_rotation_90_or_270(dflow->rot))
>  		swap(w, h);
>  
> +	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
> +	if (!fb->format->has_alpha)
> +		dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
> +
>  	dflow->needs_scaling = (w != dflow->out_w) || (h != dflow->out_h);
>  }
>  
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> index aad766365bbb..75ef0e6c5d98 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> @@ -22,10 +22,7 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
>  	memset(dflow, 0, sizeof(*dflow));
>  
>  	dflow->blending_zorder = st->normalized_zpos;
> -
> -	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
> -	dflow->pixel_blend_mode = fb->format->has_alpha ?
> -			st->pixel_blend_mode : DRM_MODE_BLEND_PIXEL_NONE;
> +	dflow->pixel_blend_mode = st->pixel_blend_mode;
>  	dflow->layer_alpha = st->alpha >> 8;
>  
>  	dflow->out_x = st->crtc_x;
> @@ -46,9 +43,10 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
>  							fb->modifier));
>  		return -EINVAL;
>  	}
> +
>  	dflow->needs_img_enhancement = kplane_st->img_enhancement;
>  
> -	komeda_complete_data_flow_cfg(dflow);
> +	komeda_complete_data_flow_cfg(dflow, fb);
>  
>  	return 0;
>  }
> diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> index eed521218ef3..20295291572f 100644
> --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> @@ -31,7 +31,7 @@ komeda_wb_init_data_flow(struct komeda_layer *wb_layer,
>  	dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
>  	dflow->rot = DRM_MODE_ROTATE_0;
>  
> -	komeda_complete_data_flow_cfg(dflow);
> +	komeda_complete_data_flow_cfg(dflow, fb);
>  
>  	return 0;
>  }
> -- 
> 2.17.1
> 

Otherwise: Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>

Best regards,
Liviu
James Qian Wang June 10, 2019, 10:02 a.m. UTC | #2
On Fri, Jun 07, 2019 at 05:46:36PM +0800, Liviu Dudau wrote:
> Hi James,
> 
> On Mon, May 20, 2019 at 11:44:47AM +0100, james qian wang (Arm Technology China) wrote:
> > To achieve same caling effect compare with none split, the texel
> > calculation need to use the same scaling ratio before split, so add
> > "total_xxx" to pipeline to describe the hsize/vsize before split.
> > Update pipeline and d71_scaler_update accordingly.
> > 
> > Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
> > ---
> >  .../arm/display/komeda/d71/d71_component.c    | 47 +++++++++++++++++--
> >  .../drm/arm/display/komeda/komeda_pipeline.h  | 19 ++++++--
> >  .../display/komeda/komeda_pipeline_state.c    | 21 ++++++++-
> >  .../gpu/drm/arm/display/komeda/komeda_plane.c |  8 ++--
> >  .../arm/display/komeda/komeda_wb_connector.c  |  2 +-
> >  5 files changed, 81 insertions(+), 16 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> > index 3266bd54c936..d101a5cc2766 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
> > @@ -642,23 +642,58 @@ static void d71_scaler_update(struct komeda_component *c,
> >  
> >  	malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize_in, st->vsize_in));
> >  	malidp_write32(reg, SC_OUT_SIZE, HV_SIZE(st->hsize_out, st->vsize_out));
> > +	malidp_write32(reg, SC_H_CROP, HV_CROP(st->left_crop, st->right_crop));
> > +
> > +	/* for right part, HW only sample the valid pixel which means the pixels
> > +	 * in left_crop will be jumpped, and the first sample pixel is:
> > +	 *
> > +	 * dst_a = st->total_hsize_out - st->hsize_out + st->left_crop + 0.5;
> > +	 *
> > +	 * Then the corresponding texel in src is:
> > +	 *
> > +	 * h_delta_phase = st->total_hsize_in / st->total_hsize_out;
> > +	 * src_a = dst_A * h_delta_phase;
> > +	 *
> > +	 * and h_init_phase is src_a deduct the real source start src_S;
> > +	 *
> > +	 * src_S = st->total_hsize_in - st->hsize_in;
> > +	 * h_init_phase = src_a - src_S;
> > +	 *
> > +	 * And HW precision for the initial/delta_phase is 16:16 fixed point,
> > +	 * the following is the simplified formula
> > +	 */
> > +	if (st->right_part) {
> > +		u32 dst_a = st->total_hsize_out - st->hsize_out + st->left_crop;
> > +
> > +		if (st->en_img_enhancement)
> > +			dst_a -= 1;
> > +
> > +		init_ph = ((st->total_hsize_in * (2 * dst_a + 1) -
> > +			    2 * st->total_hsize_out * (st->total_hsize_in -
> > +			    st->hsize_in)) << 15) / st->total_hsize_out;
> > +	} else {
> > +		init_ph = (st->total_hsize_in << 15) / st->total_hsize_out;
> > +	}
> >  
> > -	init_ph = (st->hsize_in << 15) / st->hsize_out;
> >  	malidp_write32(reg, SC_H_INIT_PH, init_ph);
> >  
> > -	delta_ph = (st->hsize_in << 16) / st->hsize_out;
> > +	delta_ph = (st->total_hsize_in << 16) / st->total_hsize_out;
> >  	malidp_write32(reg, SC_H_DELTA_PH, delta_ph);
> >  
> > -	init_ph = (st->vsize_in << 15) / st->vsize_out;
> > +	init_ph = (st->total_vsize_in << 15) / st->vsize_out;
> >  	malidp_write32(reg, SC_V_INIT_PH, init_ph);
> >  
> > -	delta_ph = (st->vsize_in << 16) / st->vsize_out;
> > +	delta_ph = (st->total_vsize_in << 16) / st->vsize_out;
> >  	malidp_write32(reg, SC_V_DELTA_PH, delta_ph);
> >  
> >  	ctrl = 0;
> >  	ctrl |= st->en_scaling ? SC_CTRL_SCL : 0;
> >  	ctrl |= st->en_alpha ? SC_CTRL_AP : 0;
> >  	ctrl |= st->en_img_enhancement ? SC_CTRL_IENH : 0;
> > +	/* If we use the hardware splitter we shouldn't set SC_CTRL_LS */
> > +	if (st->en_split &&
> > +	    state->inputs[0].component->id != KOMEDA_COMPONENT_SPLITTER)
> > +		ctrl |= SC_CTRL_LS;
> >  
> >  	malidp_write32(reg, BLK_CONTROL, ctrl);
> >  	malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0]));
> > @@ -716,10 +751,12 @@ static int d71_scaler_init(struct d71_dev *d71,
> >  	}
> >  
> >  	scaler = to_scaler(c);
> > -	set_range(&scaler->hsize, 4, d71->max_line_size);
> > +	set_range(&scaler->hsize, 4, 2048);
> >  	set_range(&scaler->vsize, 4, 4096);
> >  	scaler->max_downscaling = 6;
> >  	scaler->max_upscaling = 64;
> > +	scaler->scaling_split_overlap = 8;
> > +	scaler->enh_split_overlap = 1;
> >  
> >  	malidp_write32(c->reg, BLK_CONTROL, 0);
> >  
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> > index c92733736799..4e1cf8fd89bf 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
> > @@ -247,15 +247,22 @@ struct komeda_scaler {
> >  	struct malidp_range hsize, vsize;
> >  	u32 max_upscaling;
> >  	u32 max_downscaling;
> > +	u8 scaling_split_overlap; /* split overlap for scaling */
> > +	u8 enh_split_overlap; /* split overlap for image enhancement */
> >  };
> >  
> >  struct komeda_scaler_state {
> >  	struct komeda_component_state base;
> >  	u16 hsize_in, vsize_in;
> >  	u16 hsize_out, vsize_out;
> > +	u16 total_hsize_in, total_vsize_in;
> > +	u16 total_hsize_out; /* total_xxxx are size before split */
> > +	u16 left_crop, right_crop;
> >  	u8 en_scaling : 1,
> >  	   en_alpha : 1, /* enable alpha processing */
> > -	   en_img_enhancement : 1;
> > +	   en_img_enhancement : 1,
> > +	   en_split : 1,
> > +	   right_part; /* right part of split image */
> 
> Should right_part be a 1 bit value here, same as in komeda_data_flow_cfg ?
>

Yes, it should be a 1 bit value, will correct it

James

> >  };
> >  
> >  struct komeda_compiz {
> > @@ -323,11 +330,16 @@ struct komeda_data_flow_cfg {
> >  	struct komeda_component_output input;
> >  	u16 in_x, in_y, in_w, in_h;
> >  	u32 out_x, out_y, out_w, out_h;
> > +	u16 total_in_h, total_in_w;
> > +	u16 total_out_w;
> > +	u16 left_crop, right_crop, overlap;
> >  	u32 rot;
> >  	int blending_zorder;
> >  	u8 pixel_blend_mode, layer_alpha;
> >  	u8 needs_scaling : 1,
> > -	   needs_img_enhancement : 1;
> > +	   needs_img_enhancement : 1,
> > +	   needs_split : 1,
> > +	   right_part : 1; /* right part of display image if split enabled */
> >  };
> >  
> >  /** struct komeda_pipeline_funcs */
> > @@ -488,6 +500,7 @@ void komeda_pipeline_disable(struct komeda_pipeline *pipe,
> >  void komeda_pipeline_update(struct komeda_pipeline *pipe,
> >  			    struct drm_atomic_state *old_state);
> >  
> > -void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow);
> > +void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
> > +				   struct drm_framebuffer *fb);
> >  
> >  #endif /* _KOMEDA_PIPELINE_H_*/
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > index fcd34164b3c2..9657dbfe0210 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
> > @@ -489,11 +489,19 @@ komeda_scaler_validate(void *user,
> >  	st->hsize_in = dflow->in_w;
> >  	st->vsize_in = dflow->in_h;
> >  	st->hsize_out = dflow->out_w;
> > -	st->vsize_out = dflow->out_w;
> > +	st->vsize_out = dflow->out_h;
> > +	st->right_crop = dflow->right_crop;
> > +	st->left_crop = dflow->left_crop;
> > +	st->total_vsize_in = dflow->total_in_h;
> > +	st->total_hsize_in = dflow->total_in_w;
> > +	st->total_hsize_out = dflow->total_out_w;
> > +
> >  	st->en_scaling = dflow->needs_scaling;
> >  	/* Enable alpha processing if the next stage needs the pixel alpha */
> >  	st->en_alpha = dflow->pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE;
> >  	st->en_img_enhancement = dflow->needs_img_enhancement;
> > +	st->en_split = dflow->needs_split;
> > +	st->right_part = dflow->right_part;
> >  
> >  	komeda_component_add_input(&st->base, &dflow->input, 0);
> >  	komeda_component_set_output(&dflow->input, &scaler->base, 0);
> > @@ -647,14 +655,23 @@ komeda_timing_ctrlr_validate(struct komeda_timing_ctrlr *ctrlr,
> >  	return 0;
> >  }
> >  
> > -void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow)
> > +void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
> > +				   struct drm_framebuffer *fb)
> >  {
> >  	u32 w = dflow->in_w;
> >  	u32 h = dflow->in_h;
> >  
> > +	dflow->total_in_w = dflow->in_w;
> > +	dflow->total_in_h = dflow->in_h;
> > +	dflow->total_out_w = dflow->out_w;
> > +
> >  	if (drm_rotation_90_or_270(dflow->rot))
> >  		swap(w, h);
> >  
> > +	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
> > +	if (!fb->format->has_alpha)
> > +		dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
> > +
> >  	dflow->needs_scaling = (w != dflow->out_w) || (h != dflow->out_h);
> >  }
> >  
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> > index aad766365bbb..75ef0e6c5d98 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
> > @@ -22,10 +22,7 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
> >  	memset(dflow, 0, sizeof(*dflow));
> >  
> >  	dflow->blending_zorder = st->normalized_zpos;
> > -
> > -	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
> > -	dflow->pixel_blend_mode = fb->format->has_alpha ?
> > -			st->pixel_blend_mode : DRM_MODE_BLEND_PIXEL_NONE;
> > +	dflow->pixel_blend_mode = st->pixel_blend_mode;
> >  	dflow->layer_alpha = st->alpha >> 8;
> >  
> >  	dflow->out_x = st->crtc_x;
> > @@ -46,9 +43,10 @@ komeda_plane_init_data_flow(struct drm_plane_state *st,
> >  							fb->modifier));
> >  		return -EINVAL;
> >  	}
> > +
> >  	dflow->needs_img_enhancement = kplane_st->img_enhancement;
> >  
> > -	komeda_complete_data_flow_cfg(dflow);
> > +	komeda_complete_data_flow_cfg(dflow, fb);
> >  
> >  	return 0;
> >  }
> > diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> > index eed521218ef3..20295291572f 100644
> > --- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> > +++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
> > @@ -31,7 +31,7 @@ komeda_wb_init_data_flow(struct komeda_layer *wb_layer,
> >  	dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
> >  	dflow->rot = DRM_MODE_ROTATE_0;
> >  
> > -	komeda_complete_data_flow_cfg(dflow);
> > +	komeda_complete_data_flow_cfg(dflow, fb);
> >  
> >  	return 0;
> >  }
> > -- 
> > 2.17.1
> > 
> 
> Otherwise: Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>
> 
> Best regards,
> Liviu
> 
> 
> -- 
> ====================
> | I would like to |
> | fix the world,  |
> | but they're not |
> | giving me the   |
>  \ source code!  /
>   ---------------
>     ¯\_(ツ)_/¯
diff mbox series

Patch

diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
index 3266bd54c936..d101a5cc2766 100644
--- a/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
+++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_component.c
@@ -642,23 +642,58 @@  static void d71_scaler_update(struct komeda_component *c,
 
 	malidp_write32(reg, BLK_IN_SIZE, HV_SIZE(st->hsize_in, st->vsize_in));
 	malidp_write32(reg, SC_OUT_SIZE, HV_SIZE(st->hsize_out, st->vsize_out));
+	malidp_write32(reg, SC_H_CROP, HV_CROP(st->left_crop, st->right_crop));
+
+	/* for right part, HW only sample the valid pixel which means the pixels
+	 * in left_crop will be jumpped, and the first sample pixel is:
+	 *
+	 * dst_a = st->total_hsize_out - st->hsize_out + st->left_crop + 0.5;
+	 *
+	 * Then the corresponding texel in src is:
+	 *
+	 * h_delta_phase = st->total_hsize_in / st->total_hsize_out;
+	 * src_a = dst_A * h_delta_phase;
+	 *
+	 * and h_init_phase is src_a deduct the real source start src_S;
+	 *
+	 * src_S = st->total_hsize_in - st->hsize_in;
+	 * h_init_phase = src_a - src_S;
+	 *
+	 * And HW precision for the initial/delta_phase is 16:16 fixed point,
+	 * the following is the simplified formula
+	 */
+	if (st->right_part) {
+		u32 dst_a = st->total_hsize_out - st->hsize_out + st->left_crop;
+
+		if (st->en_img_enhancement)
+			dst_a -= 1;
+
+		init_ph = ((st->total_hsize_in * (2 * dst_a + 1) -
+			    2 * st->total_hsize_out * (st->total_hsize_in -
+			    st->hsize_in)) << 15) / st->total_hsize_out;
+	} else {
+		init_ph = (st->total_hsize_in << 15) / st->total_hsize_out;
+	}
 
-	init_ph = (st->hsize_in << 15) / st->hsize_out;
 	malidp_write32(reg, SC_H_INIT_PH, init_ph);
 
-	delta_ph = (st->hsize_in << 16) / st->hsize_out;
+	delta_ph = (st->total_hsize_in << 16) / st->total_hsize_out;
 	malidp_write32(reg, SC_H_DELTA_PH, delta_ph);
 
-	init_ph = (st->vsize_in << 15) / st->vsize_out;
+	init_ph = (st->total_vsize_in << 15) / st->vsize_out;
 	malidp_write32(reg, SC_V_INIT_PH, init_ph);
 
-	delta_ph = (st->vsize_in << 16) / st->vsize_out;
+	delta_ph = (st->total_vsize_in << 16) / st->vsize_out;
 	malidp_write32(reg, SC_V_DELTA_PH, delta_ph);
 
 	ctrl = 0;
 	ctrl |= st->en_scaling ? SC_CTRL_SCL : 0;
 	ctrl |= st->en_alpha ? SC_CTRL_AP : 0;
 	ctrl |= st->en_img_enhancement ? SC_CTRL_IENH : 0;
+	/* If we use the hardware splitter we shouldn't set SC_CTRL_LS */
+	if (st->en_split &&
+	    state->inputs[0].component->id != KOMEDA_COMPONENT_SPLITTER)
+		ctrl |= SC_CTRL_LS;
 
 	malidp_write32(reg, BLK_CONTROL, ctrl);
 	malidp_write32(reg, BLK_INPUT_ID0, to_d71_input_id(&state->inputs[0]));
@@ -716,10 +751,12 @@  static int d71_scaler_init(struct d71_dev *d71,
 	}
 
 	scaler = to_scaler(c);
-	set_range(&scaler->hsize, 4, d71->max_line_size);
+	set_range(&scaler->hsize, 4, 2048);
 	set_range(&scaler->vsize, 4, 4096);
 	scaler->max_downscaling = 6;
 	scaler->max_upscaling = 64;
+	scaler->scaling_split_overlap = 8;
+	scaler->enh_split_overlap = 1;
 
 	malidp_write32(c->reg, BLK_CONTROL, 0);
 
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
index c92733736799..4e1cf8fd89bf 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline.h
@@ -247,15 +247,22 @@  struct komeda_scaler {
 	struct malidp_range hsize, vsize;
 	u32 max_upscaling;
 	u32 max_downscaling;
+	u8 scaling_split_overlap; /* split overlap for scaling */
+	u8 enh_split_overlap; /* split overlap for image enhancement */
 };
 
 struct komeda_scaler_state {
 	struct komeda_component_state base;
 	u16 hsize_in, vsize_in;
 	u16 hsize_out, vsize_out;
+	u16 total_hsize_in, total_vsize_in;
+	u16 total_hsize_out; /* total_xxxx are size before split */
+	u16 left_crop, right_crop;
 	u8 en_scaling : 1,
 	   en_alpha : 1, /* enable alpha processing */
-	   en_img_enhancement : 1;
+	   en_img_enhancement : 1,
+	   en_split : 1,
+	   right_part; /* right part of split image */
 };
 
 struct komeda_compiz {
@@ -323,11 +330,16 @@  struct komeda_data_flow_cfg {
 	struct komeda_component_output input;
 	u16 in_x, in_y, in_w, in_h;
 	u32 out_x, out_y, out_w, out_h;
+	u16 total_in_h, total_in_w;
+	u16 total_out_w;
+	u16 left_crop, right_crop, overlap;
 	u32 rot;
 	int blending_zorder;
 	u8 pixel_blend_mode, layer_alpha;
 	u8 needs_scaling : 1,
-	   needs_img_enhancement : 1;
+	   needs_img_enhancement : 1,
+	   needs_split : 1,
+	   right_part : 1; /* right part of display image if split enabled */
 };
 
 /** struct komeda_pipeline_funcs */
@@ -488,6 +500,7 @@  void komeda_pipeline_disable(struct komeda_pipeline *pipe,
 void komeda_pipeline_update(struct komeda_pipeline *pipe,
 			    struct drm_atomic_state *old_state);
 
-void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow);
+void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
+				   struct drm_framebuffer *fb);
 
 #endif /* _KOMEDA_PIPELINE_H_*/
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
index fcd34164b3c2..9657dbfe0210 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c
@@ -489,11 +489,19 @@  komeda_scaler_validate(void *user,
 	st->hsize_in = dflow->in_w;
 	st->vsize_in = dflow->in_h;
 	st->hsize_out = dflow->out_w;
-	st->vsize_out = dflow->out_w;
+	st->vsize_out = dflow->out_h;
+	st->right_crop = dflow->right_crop;
+	st->left_crop = dflow->left_crop;
+	st->total_vsize_in = dflow->total_in_h;
+	st->total_hsize_in = dflow->total_in_w;
+	st->total_hsize_out = dflow->total_out_w;
+
 	st->en_scaling = dflow->needs_scaling;
 	/* Enable alpha processing if the next stage needs the pixel alpha */
 	st->en_alpha = dflow->pixel_blend_mode != DRM_MODE_BLEND_PIXEL_NONE;
 	st->en_img_enhancement = dflow->needs_img_enhancement;
+	st->en_split = dflow->needs_split;
+	st->right_part = dflow->right_part;
 
 	komeda_component_add_input(&st->base, &dflow->input, 0);
 	komeda_component_set_output(&dflow->input, &scaler->base, 0);
@@ -647,14 +655,23 @@  komeda_timing_ctrlr_validate(struct komeda_timing_ctrlr *ctrlr,
 	return 0;
 }
 
-void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow)
+void komeda_complete_data_flow_cfg(struct komeda_data_flow_cfg *dflow,
+				   struct drm_framebuffer *fb)
 {
 	u32 w = dflow->in_w;
 	u32 h = dflow->in_h;
 
+	dflow->total_in_w = dflow->in_w;
+	dflow->total_in_h = dflow->in_h;
+	dflow->total_out_w = dflow->out_w;
+
 	if (drm_rotation_90_or_270(dflow->rot))
 		swap(w, h);
 
+	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
+	if (!fb->format->has_alpha)
+		dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
+
 	dflow->needs_scaling = (w != dflow->out_w) || (h != dflow->out_h);
 }
 
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
index aad766365bbb..75ef0e6c5d98 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_plane.c
@@ -22,10 +22,7 @@  komeda_plane_init_data_flow(struct drm_plane_state *st,
 	memset(dflow, 0, sizeof(*dflow));
 
 	dflow->blending_zorder = st->normalized_zpos;
-
-	/* if format doesn't have alpha, fix blend mode to PIXEL_NONE */
-	dflow->pixel_blend_mode = fb->format->has_alpha ?
-			st->pixel_blend_mode : DRM_MODE_BLEND_PIXEL_NONE;
+	dflow->pixel_blend_mode = st->pixel_blend_mode;
 	dflow->layer_alpha = st->alpha >> 8;
 
 	dflow->out_x = st->crtc_x;
@@ -46,9 +43,10 @@  komeda_plane_init_data_flow(struct drm_plane_state *st,
 							fb->modifier));
 		return -EINVAL;
 	}
+
 	dflow->needs_img_enhancement = kplane_st->img_enhancement;
 
-	komeda_complete_data_flow_cfg(dflow);
+	komeda_complete_data_flow_cfg(dflow, fb);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
index eed521218ef3..20295291572f 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
@@ -31,7 +31,7 @@  komeda_wb_init_data_flow(struct komeda_layer *wb_layer,
 	dflow->pixel_blend_mode = DRM_MODE_BLEND_PIXEL_NONE;
 	dflow->rot = DRM_MODE_ROTATE_0;
 
-	komeda_complete_data_flow_cfg(dflow);
+	komeda_complete_data_flow_cfg(dflow, fb);
 
 	return 0;
 }