[Intel-gfx] [PATCH 09/19] drm/i915/dp: Use connector DSC DPCD in intel_dp_dsc_max_sink_compressed_bppx16()

[Lisovskiy, Stanislav]

On Fri, Oct 06, 2023 at 04:37:17PM +0300, Imre Deak wrote:
> Use the connector's DSC DPCD capabilities in
> intel_dp_dsc_max_sink_compressed_bppx16().
> 
> Signed-off-by: Imre Deak <imre.deak at intel.com>

Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>

> ---
>  drivers/gpu/drm/i915/display/intel_dp.c | 19 +++++++++++--------
>  1 file changed, 11 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
> index 437bd972fb040..ff4090a602b4b 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -1767,11 +1767,11 @@ static int dsc_compute_link_config(struct intel_dp *intel_dp,
>  }
>  
>  static
> -u16 intel_dp_dsc_max_sink_compressed_bppx16(struct intel_dp *intel_dp,
> +u16 intel_dp_dsc_max_sink_compressed_bppx16(const struct intel_connector *connector,
>  					    struct intel_crtc_state *pipe_config,
>  					    int bpc)
>  {
> -	u16 max_bppx16 = drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd);
> +	u16 max_bppx16 = drm_edp_dsc_sink_output_bpp(connector->dp.dsc_dpcd);
>  
>  	if (max_bppx16)
>  		return max_bppx16;
> @@ -1810,11 +1810,11 @@ static int dsc_sink_min_compressed_bpp(struct intel_crtc_state *pipe_config)
>  	return 0;
>  }
>  
> -static int dsc_sink_max_compressed_bpp(struct intel_dp *intel_dp,
> +static int dsc_sink_max_compressed_bpp(const struct intel_connector *connector,
>  				       struct intel_crtc_state *pipe_config,
>  				       int bpc)
>  {
> -	return intel_dp_dsc_max_sink_compressed_bppx16(intel_dp,
> +	return intel_dp_dsc_max_sink_compressed_bppx16(connector,
>  						       pipe_config, bpc) >> 4;
>  }
>  
> @@ -1913,6 +1913,7 @@ xelpd_dsc_compute_link_config(struct intel_dp *intel_dp,
>  }
>  
>  static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
> +				      const struct intel_connector *connector,
>  				      struct intel_crtc_state *pipe_config,
>  				      struct link_config_limits *limits,
>  				      int pipe_bpp,
> @@ -1930,7 +1931,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
>  	dsc_min_bpp = max(dsc_min_bpp, to_bpp_int_roundup(limits->link.min_bpp_x16));
>  
>  	dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
> -	dsc_sink_max_bpp = dsc_sink_max_compressed_bpp(intel_dp, pipe_config, pipe_bpp / 3);
> +	dsc_sink_max_bpp = dsc_sink_max_compressed_bpp(connector, pipe_config, pipe_bpp / 3);
>  	dsc_max_bpp = dsc_sink_max_bpp ? min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
>  
>  	dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, adjusted_mode->clock,
> @@ -2002,6 +2003,8 @@ static int intel_dp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
>  					 int timeslots)
>  {
>  	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
> +	const struct intel_connector *connector =
> +		to_intel_connector(conn_state->connector);
>  	u8 max_req_bpc = conn_state->max_requested_bpc;
>  	u8 dsc_max_bpc, dsc_max_bpp;
>  	u8 dsc_min_bpc, dsc_min_bpp;
> @@ -2012,7 +2015,7 @@ static int intel_dp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
>  	forced_bpp = intel_dp_force_dsc_pipe_bpp(intel_dp, conn_state, limits);
>  
>  	if (forced_bpp) {
> -		ret = dsc_compute_compressed_bpp(intel_dp, pipe_config,
> +		ret = dsc_compute_compressed_bpp(intel_dp, connector, pipe_config,
>  						 limits, forced_bpp, timeslots);
>  		if (ret == 0) {
>  			pipe_config->pipe_bpp = forced_bpp;
> @@ -2041,7 +2044,7 @@ static int intel_dp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
>  			break;
>  		if (pipe_bpp > dsc_max_bpp)
>  			continue;
> -		ret = dsc_compute_compressed_bpp(intel_dp, pipe_config,
> +		ret = dsc_compute_compressed_bpp(intel_dp, connector, pipe_config,
>  						 limits, pipe_bpp, timeslots);
>  		if (ret == 0) {
>  			pipe_config->pipe_bpp = pipe_bpp;
> @@ -2088,7 +2091,7 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
>  	dsc_min_bpp = max(dsc_min_bpp, to_bpp_int_roundup(limits->link.min_bpp_x16));
>  
>  	dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
> -	dsc_sink_max_bpp = dsc_sink_max_compressed_bpp(intel_dp, pipe_config, pipe_bpp / 3);
> +	dsc_sink_max_bpp = dsc_sink_max_compressed_bpp(connector, pipe_config, pipe_bpp / 3);
>  	dsc_max_bpp = dsc_sink_max_bpp ? min(dsc_sink_max_bpp, dsc_src_max_bpp) : dsc_src_max_bpp;
>  	dsc_max_bpp = min(dsc_max_bpp, to_bpp_int(limits->link.max_bpp_x16));
>  
> -- 
> 2.39.2
>