Commit df2f1015 authored by David Francis's avatar David Francis Committed by Alex Deucher

drm/amd/display: Enable SST DSC in DM

In create_stream_for_sink, check for SST DP connectors

Parse DSC caps to DC format, then, if DSC is supported,
compute the config

DSC hardware will be programmed by dc_commit_state
Tested-by: default avatarMikita Lipski <Mikita.Lipski@amd.com>
Signed-off-by: default avatarDavid Francis <David.Francis@amd.com>
Reviewed-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5cb99d46
......@@ -3517,6 +3517,10 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
bool scale = dm_state ? (dm_state->scaling != RMX_OFF) : false;
int mode_refresh;
int preferred_refresh = 0;
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
struct dsc_dec_dpcd_caps dsc_caps;
uint32_t link_bandwidth_kbps;
#endif
struct dc_sink *sink = NULL;
if (aconnector == NULL) {
......@@ -3589,17 +3593,23 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector,
&mode, &aconnector->base, con_state, old_stream);
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
/* stream->timing.flags.DSC = 0; */
/* */
/* if (aconnector->dc_link && */
/* aconnector->dc_link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT #<{(|&& */
/* aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.is_dsc_supported|)}>#) */
/* if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc, */
/* &aconnector->dc_link->dpcd_caps.dsc_caps, */
/* dc_link_bandwidth_kbps(aconnector->dc_link, dc_link_get_link_cap(aconnector->dc_link)), */
/* &stream->timing, */
/* &stream->timing.dsc_cfg)) */
/* stream->timing.flags.DSC = 1; */
stream->timing.flags.DSC = 0;
if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
dc_dsc_parse_dsc_dpcd(aconnector->dc_link->dpcd_caps.dsc_caps.dsc_basic_caps.raw,
aconnector->dc_link->dpcd_caps.dsc_caps.dsc_ext_caps.raw,
&dsc_caps);
link_bandwidth_kbps = dc_link_bandwidth_kbps(aconnector->dc_link,
dc_link_get_link_cap(aconnector->dc_link));
if (dsc_caps.is_dsc_supported)
if (dc_dsc_compute_config(aconnector->dc_link->ctx->dc,
&dsc_caps,
link_bandwidth_kbps,
&stream->timing,
&stream->timing.dsc_cfg))
stream->timing.flags.DSC = 1;
}
#endif
update_stream_scaling_settings(&mode, dm_state, stream);
......
......@@ -548,7 +548,9 @@ bool dm_helpers_dp_write_dsc_enable(
bool enable
)
{
return false;
uint8_t enable_dsc = enable ? 1 : 0;
return dm_helpers_dp_write_dpcd(ctx, stream->sink->link, DP_DSC_ENABLE, &enable_dsc, 1);
}
#endif
......
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