drm/amd/display: Use passive_vrr properties in amdgpu

[How]
Attach and use this properties for HDMI sinks which are troublesome
with their VRR state transitions. Hook into already-established
freesync_on_desktop logic.

Signed-off-by: Tomasz Pakuła <tomasz.pakula.oficjalny@gmail.com>

Author: Lawstorant

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

@@ -7860,6 +7860,8 @@ amdgpu_dm_connector_atomic_duplicate_state(struct drm_connector *connector)
 	__drm_atomic_helper_connector_duplicate_state(connector, &new_state->base);
 
 	new_state->freesync_capable = state->freesync_capable;
+	new_state->freesync_on_desktop_capable =
+		state->freesync_on_desktop_capable;
 	new_state->abm_level = state->abm_level;
 	new_state->scaling = state->scaling;
 	new_state->underscan_enable = state->underscan_enable;
@@ -9066,8 +9068,10 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
 	    connector_type == DRM_MODE_CONNECTOR_eDP) {
 		drm_connector_attach_hdr_output_metadata_property(&aconnector->base);
 
-		if (!aconnector->mst_root)
+		if (!aconnector->mst_root) {
 			drm_connector_attach_vrr_capable_property(&aconnector->base);
+			drm_connector_attach_passive_vrr_capable_property(&aconnector->base);
+		}
 
 		if (adev->dm.hdcp_workqueue)
 			drm_connector_attach_content_protection_property(&aconnector->base, true);
@@ -11347,6 +11351,12 @@ static void get_freesync_config_for_crtc(
 		config.vsif_supported = true;
 		config.btr = true;
 
+		if (new_con_state->freesync_on_desktop_capable)
+			new_crtc_state->stream->freesync_on_desktop =
+				!new_crtc_state->base.passive_vrr_disabled;
+		else
+			new_crtc_state->stream->freesync_on_desktop = false;
+
 		if (fs_vid_mode) {
 			config.state = VRR_STATE_ACTIVE_FIXED;
 			config.fixed_refresh_in_uhz = new_crtc_state->freesync_config.fixed_refresh_in_uhz;
@@ -11358,6 +11368,7 @@ static void get_freesync_config_for_crtc(
 		}
 	} else {
 		config.state = VRR_STATE_UNSUPPORTED;
+		new_crtc_state->stream->freesync_on_desktop = false;
 	}
 out:
 	new_crtc_state->freesync_config = config;
@@ -13361,6 +13372,7 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
 	struct drm_hdmi_vrr_cap hdmi_vrr = {0};
 	struct dpcd_caps dpcd_caps = {0};
 	const struct edid *edid;
+	bool freesync_on_desktop = false;
 	bool freesync_capable = false;
 	bool pcon_allowed = false;
 	bool is_pcon = false;
@@ -13440,6 +13452,7 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
 			monitor_range_from_vsdb(&connector->display_info, &vsdb_info);
 
 		freesync_capable = copy_range_to_amdgpu_connector(connector);
+		freesync_on_desktop = freesync_capable;
 
 	/* DP -> HDMI PCON */
 	} else if (pcon_allowed) {
@@ -13454,11 +13467,14 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
 		amdgpu_dm_connector->pack_sdp_v1_3 = true;
 		amdgpu_dm_connector->as_type = ADAPTIVE_SYNC_TYPE_PCON_ALLOWED;
 		freesync_capable = copy_range_to_amdgpu_connector(connector);
+		freesync_on_desktop = freesync_capable;
 	}
 
 update:
-	if (dm_con_state)
+	if (dm_con_state) {
 		dm_con_state->freesync_capable = freesync_capable;
+		dm_con_state->freesync_on_desktop_capable = freesync_on_desktop;
+	}
 
 	if (connector->state && amdgpu_dm_connector->dc_link && !freesync_capable &&
 	    amdgpu_dm_connector->dc_link->replay_settings.config.replay_supported) {
@@ -13467,8 +13483,10 @@ void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
 	}
 
 	if (connector->vrr_capable_property)
-		drm_connector_set_vrr_capable_property(connector,
-						       freesync_capable);
+		drm_connector_set_vrr_capable_property(connector, freesync_capable);
+
+	if (connector->passive_vrr_capable_property)
+		drm_connector_set_passive_vrr_capable_property(connector, freesync_on_desktop);
 }
 
 void amdgpu_dm_trigger_timing_sync(struct drm_device *dev)

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

@@ -1020,6 +1020,7 @@ struct dm_connector_state {
 	uint8_t underscan_hborder;
 	bool underscan_enable;
 	bool freesync_capable;
+	bool freesync_on_desktop_capable;
 	bool update_hdcp;
 	bool abm_sysfs_forbidden;
 	uint8_t abm_level;