1 files changed, 113 insertions, 40 deletions

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
index a7fd98f57f94..8e572f07ec47 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c
@@ -170,9 +170,10 @@ void hdcp_update_display(struct hdcp_workqueue *hdcp_work,
 	struct mod_hdcp_display *display = &hdcp_work[link_index].display;
 	struct mod_hdcp_link *link = &hdcp_work[link_index].link;
 	struct mod_hdcp_display_query query;
+	unsigned int conn_index = aconnector->base.index;
 
 	mutex_lock(&hdcp_w->mutex);
-	hdcp_w->aconnector = aconnector;
+	hdcp_w->aconnector[conn_index] = aconnector;
 
 	query.display = NULL;
 	mod_hdcp_query_display(&hdcp_w->hdcp, aconnector->base.index, &query);
@@ -204,7 +205,7 @@ void hdcp_update_display(struct hdcp_workqueue *hdcp_work,
 					      msecs_to_jiffies(DRM_HDCP_CHECK_PERIOD_MS));
 		} else {
 			display->adjust.disable = MOD_HDCP_DISPLAY_DISABLE_AUTHENTICATION;
-			hdcp_w->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+			hdcp_w->encryption_status[conn_index] = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
 			cancel_delayed_work(&hdcp_w->property_validate_dwork);
 		}
 
@@ -223,9 +224,10 @@ static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work,
 {
 	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
 	struct drm_connector_state *conn_state = aconnector->base.state;
+	unsigned int conn_index = aconnector->base.index;
 
 	mutex_lock(&hdcp_w->mutex);
-	hdcp_w->aconnector = aconnector;
+	hdcp_w->aconnector[conn_index] = aconnector;
 
 	/* the removal of display will invoke auth reset -> hdcp destroy and
 	 * we'd expect the Content Protection (CP) property changed back to
@@ -247,13 +249,18 @@ static void hdcp_remove_display(struct hdcp_workqueue *hdcp_work,
 void hdcp_reset_display(struct hdcp_workqueue *hdcp_work, unsigned int link_index)
 {
 	struct hdcp_workqueue *hdcp_w = &hdcp_work[link_index];
+	unsigned int conn_index;
 
 	mutex_lock(&hdcp_w->mutex);
 
 	mod_hdcp_reset_connection(&hdcp_w->hdcp,  &hdcp_w->output);
 
 	cancel_delayed_work(&hdcp_w->property_validate_dwork);
-	hdcp_w->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX; conn_index++) {
+		hdcp_w->encryption_status[conn_index] =
+			MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+	}
 
 	process_output(hdcp_w);
 
@@ -290,49 +297,80 @@ static void event_callback(struct work_struct *work)
 
 
 }
+
 static void event_property_update(struct work_struct *work)
 {
-
 	struct hdcp_workqueue *hdcp_work = container_of(work, struct hdcp_workqueue, property_update_work);
-	struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
-	struct drm_device *dev = hdcp_work->aconnector->base.dev;
+	struct amdgpu_dm_connector *aconnector = NULL;
+	struct drm_device *dev;
 	long ret;
+	unsigned int conn_index;
+	struct drm_connector *connector;
+	struct drm_connector_state *conn_state;
 
-	drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
-	mutex_lock(&hdcp_work->mutex);
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX; conn_index++) {
+		aconnector = hdcp_work->aconnector[conn_index];
 
+		if (!aconnector)
+			continue;
 
-	if (aconnector->base.state && aconnector->base.state->commit) {
-		ret = wait_for_completion_interruptible_timeout(&aconnector->base.state->commit->hw_done, 10 * HZ);
+		connector = &aconnector->base;
 
-		if (ret == 0) {
-			DRM_ERROR("HDCP state unknown! Setting it to DESIRED");
-			hdcp_work->encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
-		}
-	}
+		/* check if display connected */
+		if (connector->status != connector_status_connected)
+			continue;
 
-	if (aconnector->base.state) {
-		if (hdcp_work->encryption_status != MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
-			if (aconnector->base.state->hdcp_content_type ==
+		conn_state = aconnector->base.state;
+
+		if (!conn_state)
+			continue;
+
+		dev = connector->dev;
+
+		if (!dev)
+			continue;
+
+		drm_modeset_lock(&dev->mode_config.connection_mutex, NULL);
+		mutex_lock(&hdcp_work->mutex);
+
+		if (conn_state->commit) {
+			ret = wait_for_completion_interruptible_timeout(
+				&conn_state->commit->hw_done, 10 * HZ);
+			if (ret == 0) {
+				DRM_ERROR(
+					"HDCP state unknown! Setting it to DESIRED");
+				hdcp_work->encryption_status[conn_index] =
+					MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+			}
+		}
+		if (hdcp_work->encryption_status[conn_index] !=
+			MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF) {
+			if (conn_state->hdcp_content_type ==
 				DRM_MODE_HDCP_CONTENT_TYPE0 &&
-			hdcp_work->encryption_status <=
-				MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON)
-				drm_hdcp_update_content_protection(&aconnector->base,
+				hdcp_work->encryption_status[conn_index] <=
+				MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE0_ON) {
+
+				DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_ENABLED\n");
+				drm_hdcp_update_content_protection(
+					connector,
 					DRM_MODE_CONTENT_PROTECTION_ENABLED);
-			else if (aconnector->base.state->hdcp_content_type ==
+			} else if (conn_state->hdcp_content_type ==
 					DRM_MODE_HDCP_CONTENT_TYPE1 &&
-				hdcp_work->encryption_status ==
-					MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON)
-				drm_hdcp_update_content_protection(&aconnector->base,
+					hdcp_work->encryption_status[conn_index] ==
+					MOD_HDCP_ENCRYPTION_STATUS_HDCP2_TYPE1_ON) {
+				drm_hdcp_update_content_protection(
+					connector,
 					DRM_MODE_CONTENT_PROTECTION_ENABLED);
+			}
 		} else {
-			drm_hdcp_update_content_protection(&aconnector->base,
-				DRM_MODE_CONTENT_PROTECTION_DESIRED);
+			DRM_DEBUG_DRIVER("[HDCP_DM] DRM_MODE_CONTENT_PROTECTION_DESIRED\n");
+			drm_hdcp_update_content_protection(
+				connector, DRM_MODE_CONTENT_PROTECTION_DESIRED);
+
 		}
+		mutex_unlock(&hdcp_work->mutex);
+		drm_modeset_unlock(&dev->mode_config.connection_mutex);
 	}
-
-	mutex_unlock(&hdcp_work->mutex);
-	drm_modeset_unlock(&dev->mode_config.connection_mutex);
 }
 
 static void event_property_validate(struct work_struct *work)
@@ -340,19 +378,47 @@ static void event_property_validate(struct work_struct *work)
 	struct hdcp_workqueue *hdcp_work =
 		container_of(to_delayed_work(work), struct hdcp_workqueue, property_validate_dwork);
 	struct mod_hdcp_display_query query;
-	struct amdgpu_dm_connector *aconnector = hdcp_work->aconnector;
-
-	if (!aconnector)
-		return;
+	struct amdgpu_dm_connector *aconnector;
+	unsigned int conn_index;
 
 	mutex_lock(&hdcp_work->mutex);
 
-	query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
-	mod_hdcp_query_display(&hdcp_work->hdcp, aconnector->base.index, &query);
+	for (conn_index = 0; conn_index < AMDGPU_DM_MAX_DISPLAY_INDEX;
+	     conn_index++) {
+		aconnector = hdcp_work->aconnector[conn_index];
+
+		if (!aconnector)
+			continue;
+
+		/* check if display connected */
+		if (aconnector->base.status != connector_status_connected)
+			continue;
 
-	if (query.encryption_status != hdcp_work->encryption_status) {
-		hdcp_work->encryption_status = query.encryption_status;
-		schedule_work(&hdcp_work->property_update_work);
+		if (!aconnector->base.state)
+			continue;
+
+		query.encryption_status = MOD_HDCP_ENCRYPTION_STATUS_HDCP_OFF;
+		mod_hdcp_query_display(&hdcp_work->hdcp, aconnector->base.index,
+				       &query);
+
+		DRM_DEBUG_DRIVER("[HDCP_DM] disp %d, connector->CP %u, (query, work): (%d, %d)\n",
+			aconnector->base.index,
+			aconnector->base.state->content_protection,
+			query.encryption_status,
+			hdcp_work->encryption_status[conn_index]);
+
+		if (query.encryption_status !=
+		    hdcp_work->encryption_status[conn_index]) {
+			DRM_DEBUG_DRIVER("[HDCP_DM] encryption_status change from %x to %x\n",
+				hdcp_work->encryption_status[conn_index], query.encryption_status);
+
+			hdcp_work->encryption_status[conn_index] =
+				query.encryption_status;
+
+			DRM_DEBUG_DRIVER("[HDCP_DM] trigger property_update_work\n");
+
+			schedule_work(&hdcp_work->property_update_work);
+		}
 	}
 
 	mutex_unlock(&hdcp_work->mutex);
@@ -686,6 +752,13 @@ struct hdcp_workqueue *hdcp_create_workqueue(struct amdgpu_device *adev, struct
 		hdcp_work[i].hdcp.config.ddc.funcs.read_i2c = lp_read_i2c;
 		hdcp_work[i].hdcp.config.ddc.funcs.write_dpcd = lp_write_dpcd;
 		hdcp_work[i].hdcp.config.ddc.funcs.read_dpcd = lp_read_dpcd;
+
+		memset(hdcp_work[i].aconnector, 0,
+		       sizeof(struct amdgpu_dm_connector *) *
+			       AMDGPU_DM_MAX_DISPLAY_INDEX);
+		memset(hdcp_work[i].encryption_status, 0,
+		       sizeof(enum mod_hdcp_encryption_status) *
+			       AMDGPU_DM_MAX_DISPLAY_INDEX);
 	}
 
 	cp_psp->funcs.update_stream_config = update_config;