drm/amd/display: Add height granularity limitation for dsc slice height calculation

[WHY]
eDP add new limitation for Y granularity for selected update feature.
DSC does not include this limitation while calculating slice height.

[HOW]
Add new limitation while looking for DSC slice height.

Reviewed-by: Cruise Hung <Cruise.Hung@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Mike Hsieh <Mike.Hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 10 insertions, 6 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index e25e1b2bf194..e10ed2935971 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -678,16 +678,19 @@ static void set_dsc_configs_from_fairness_vars(struct dsc_mst_fairness_params *p
 {
 	struct drm_connector *drm_connector;
 	int i;
+	struct dc_dsc_config_options dsc_options = {0};
 
 	for (i = 0; i < count; i++) {
 		drm_connector = &params[i].aconnector->base;
 
+		dc_dsc_get_default_config_option(params[i].sink->ctx->dc, &dsc_options);
+		dsc_options.max_target_bpp_limit_override_x16 = drm_connector->display_info.max_dsc_bpp * 16;
+
 		memset(&params[i].timing->dsc_cfg, 0, sizeof(params[i].timing->dsc_cfg));
 		if (vars[i + k].dsc_enabled && dc_dsc_compute_config(
 					params[i].sink->ctx->dc->res_pool->dscs[0],
 					&params[i].sink->dsc_caps.dsc_dec_caps,
-					params[i].sink->ctx->dc->debug.dsc_min_slice_height_override,
-					drm_connector->display_info.max_dsc_bpp,
+					&dsc_options,
 					0,
 					params[i].timing,
 					&params[i].timing->dsc_cfg)) {
@@ -730,15 +733,16 @@ static int bpp_x16_from_pbn(struct dsc_mst_fairness_params param, int pbn)
 	u64 kbps;
 
 	struct drm_connector *drm_connector = &param.aconnector->base;
-	uint32_t max_dsc_target_bpp_limit_override =
-		drm_connector->display_info.max_dsc_bpp;
+	struct dc_dsc_config_options dsc_options = {0};
+
+	dc_dsc_get_default_config_option(param.sink->ctx->dc, &dsc_options);
+	dsc_options.max_target_bpp_limit_override_x16 = drm_connector->display_info.max_dsc_bpp * 16;
 
 	kbps = div_u64((u64)pbn * 994 * 8 * 54, 64);
 	dc_dsc_compute_config(
 			param.sink->ctx->dc->res_pool->dscs[0],
 			&param.sink->dsc_caps.dsc_dec_caps,
-			param.sink->ctx->dc->debug.dsc_min_slice_height_override,
-			max_dsc_target_bpp_limit_override,
+			&dsc_options,
 			(int) kbps, param.timing, &dsc_config);
 
 	return dsc_config.bits_per_pixel;