[PATCH 04/10] drm/amd/display: Use max target bpp override option

[Qingqing Zhuo]

From: Roman Li <roman...@amd.com>

[Why]
Max target bpp override is an option for working around
DSC issues. It is supported on DC level, but was not
used in DM.

[How]
Use actual option value instead of 0.

Reviewed-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
Acked-by: Qingqing Zhuo <qingqing.z...@amd.com>
Signed-off-by: Roman Li <roman...@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         | 8 +++++++-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c   | 4 ++--
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 162a8208f74f..e5ff59e2fc7c 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5753,9 +5753,15 @@ static void apply_dsc_policy_for_stream(struct 
amdgpu_dm_connector *aconnector,
 {
        struct drm_connector *drm_connector = &aconnector->base;
        uint32_t link_bandwidth_kbps;
+       uint32_t max_dsc_target_bpp_limit_override = 0;
 
        link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
                                                        
dc_link_get_link_cap(aconnector->dc_link));
+
+       if (stream->link && stream->link->local_sink)
+               max_dsc_target_bpp_limit_override =
+                       
stream->link->local_sink->edid_caps.panel_patch.max_dsc_target_bpp_limit;
+       
        /* Set DSC policy according to dsc_clock_en */
        dc_dsc_policy_set_enable_dsc_when_not_needed(
                aconnector->dsc_settings.dsc_force_enable == 
DSC_CLK_FORCE_ENABLE);
@@ -5765,7 +5771,7 @@ static void apply_dsc_policy_for_stream(struct 
amdgpu_dm_connector *aconnector,
                if 
(dc_dsc_compute_config(aconnector->dc_link->ctx->dc->res_pool->dscs[0],
                                                dsc_caps,
                                                
aconnector->dc_link->ctx->dc->debug.dsc_min_slice_height_override,
-                                               0,
+                                               
max_dsc_target_bpp_limit_override,
                                                link_bandwidth_kbps,
                                                &stream->timing,
                                                &stream->timing.dsc_cfg)) {
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 1bcba6943fd7..705f2e67edb5 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
@@ -547,7 +547,7 @@ static void set_dsc_configs_from_fairness_vars(struct 
dsc_mst_fairness_params *p
                                        
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,
-                                       0,
+                                       
params[i].sink->edid_caps.panel_patch.max_dsc_target_bpp_limit,
                                        0,
                                        params[i].timing,
                                        &params[i].timing->dsc_cfg)) {
@@ -579,7 +579,7 @@ static int bpp_x16_from_pbn(struct dsc_mst_fairness_params 
param, int pbn)
                        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,
-                       0,
+                       
param.sink->edid_caps.panel_patch.max_dsc_target_bpp_limit,
                        (int) kbps, param.timing, &dsc_config);
 
        return dsc_config.bits_per_pixel;
-- 
2.25.1