1 files changed, 44 insertions, 18 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 774b429142bc..540c0cbbfcee 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -205,7 +205,7 @@ nouveau_user_framebuffer_destroy(struct drm_framebuffer *drm_fb)
 	struct nouveau_framebuffer *fb = nouveau_framebuffer(drm_fb);
 
 	if (fb->nvbo)
-		drm_gem_object_unreference_unlocked(&fb->nvbo->gem);
+		drm_gem_object_put_unlocked(&fb->nvbo->gem);
 
 	drm_framebuffer_cleanup(drm_fb);
 	kfree(fb);
@@ -287,13 +287,13 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 	if (ret == 0)
 		return &fb->base;
 
-	drm_gem_object_unreference_unlocked(gem);
+	drm_gem_object_put_unlocked(gem);
 	return ERR_PTR(ret);
 }
 
 static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 	.fb_create = nouveau_user_framebuffer_create,
-	.output_poll_changed = drm_fb_helper_output_poll_changed,
+	.output_poll_changed = nouveau_fbcon_output_poll_changed,
 };
 
 
@@ -355,8 +355,6 @@ nouveau_display_hpd_work(struct work_struct *work)
 	pm_runtime_get_sync(drm->dev->dev);
 
 	drm_helper_hpd_irq_event(drm->dev);
-	/* enable polling for external displays */
-	drm_kms_helper_poll_enable(drm->dev);
 
 	pm_runtime_mark_last_busy(drm->dev->dev);
 	pm_runtime_put_sync(drm->dev->dev);
@@ -379,15 +377,29 @@ nouveau_display_acpi_ntfy(struct notifier_block *nb, unsigned long val,
 {
 	struct nouveau_drm *drm = container_of(nb, typeof(*drm), acpi_nb);
 	struct acpi_bus_event *info = data;
+	int ret;
 
 	if (!strcmp(info->device_class, ACPI_VIDEO_CLASS)) {
 		if (info->type == ACPI_VIDEO_NOTIFY_PROBE) {
-			/*
-			 * This may be the only indication we receive of a
-			 * connector hotplug on a runtime suspended GPU,
-			 * schedule hpd_work to check.
-			 */
-			schedule_work(&drm->hpd_work);
+			ret = pm_runtime_get(drm->dev->dev);
+			if (ret == 1 || ret == -EACCES) {
+				/* If the GPU is already awake, or in a state
+				 * where we can't wake it up, it can handle
+				 * it's own hotplug events.
+				 */
+				pm_runtime_put_autosuspend(drm->dev->dev);
+			} else if (ret == 0) {
+				/* This may be the only indication we receive
+				 * of a connector hotplug on a runtime
+				 * suspended GPU, schedule hpd_work to check.
+				 */
+				NV_DEBUG(drm, "ACPI requested connector reprobe\n");
+				schedule_work(&drm->hpd_work);
+				pm_runtime_put_noidle(drm->dev->dev);
+			} else {
+				NV_WARN(drm, "Dropped ACPI reprobe event due to RPM error: %d\n",
+					ret);
+			}
 
 			/* acpi-video should not generate keypresses for this */
 			return NOTIFY_BAD;
@@ -404,17 +416,25 @@ nouveau_display_init(struct drm_device *dev)
 	struct nouveau_display *disp = nouveau_display(dev);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct drm_connector *connector;
+	struct drm_connector_list_iter conn_iter;
 	int ret;
 
 	ret = disp->init(dev);
 	if (ret)
 		return ret;
 
+	/* enable connector detection and polling for connectors without HPD
+	 * support
+	 */
+	drm_kms_helper_poll_enable(dev);
+
 	/* enable hotplug interrupts */
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 		struct nouveau_connector *conn = nouveau_connector(connector);
 		nvif_notify_get(&conn->hpd);
 	}
+	drm_connector_list_iter_end(&conn_iter);
 
 	/* enable flip completion events */
 	nvif_notify_get(&drm->flip);
@@ -422,11 +442,12 @@ nouveau_display_init(struct drm_device *dev)
 }
 
 void
-nouveau_display_fini(struct drm_device *dev, bool suspend)
+nouveau_display_fini(struct drm_device *dev, bool suspend, bool runtime)
 {
 	struct nouveau_display *disp = nouveau_display(dev);
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct drm_connector *connector;
+	struct drm_connector_list_iter conn_iter;
 
 	if (!suspend) {
 		if (drm_drv_uses_atomic_modeset(dev))
@@ -439,10 +460,15 @@ nouveau_display_fini(struct drm_device *dev, bool suspend)
 	nvif_notify_put(&drm->flip);
 
 	/* disable hotplug interrupts */
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	nouveau_for_each_non_mst_connector_iter(connector, &conn_iter) {
 		struct nouveau_connector *conn = nouveau_connector(connector);
 		nvif_notify_put(&conn->hpd);
 	}
+	drm_connector_list_iter_end(&conn_iter);
+
+	if (!runtime)
+		cancel_work_sync(&drm->hpd_work);
 
 	drm_kms_helper_poll_disable(dev);
 	disp->fini(dev);
@@ -612,11 +638,11 @@ nouveau_display_suspend(struct drm_device *dev, bool runtime)
 			}
 		}
 
-		nouveau_display_fini(dev, true);
+		nouveau_display_fini(dev, true, runtime);
 		return 0;
 	}
 
-	nouveau_display_fini(dev, true);
+	nouveau_display_fini(dev, true, runtime);
 
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct nouveau_framebuffer *nouveau_fb;
@@ -939,7 +965,7 @@ nouveau_display_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
 		return ret;
 
 	ret = drm_gem_handle_create(file_priv, &bo->gem, &args->handle);
-	drm_gem_object_unreference_unlocked(&bo->gem);
+	drm_gem_object_put_unlocked(&bo->gem);
 	return ret;
 }
 
@@ -954,7 +980,7 @@ nouveau_display_dumb_map_offset(struct drm_file *file_priv,
 	if (gem) {
 		struct nouveau_bo *bo = nouveau_gem_object(gem);
 		*poffset = drm_vma_node_offset_addr(&bo->bo.vma_node);
-		drm_gem_object_unreference_unlocked(gem);
+		drm_gem_object_put_unlocked(gem);
 		return 0;
 	}