122 static int __drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,  in __drm_fb_helper_add_one_connector()  argument
132 	lockdep_assert_held(&fb_helper->lock);  in __drm_fb_helper_add_one_connector()
134 	count = fb_helper->connector_count + 1;  in __drm_fb_helper_add_one_connector()
136 	if (count > fb_helper->connector_info_alloc_count) {  in __drm_fb_helper_add_one_connector()
139 		temp = krealloc(fb_helper->connector_info, size, GFP_KERNEL);  in __drm_fb_helper_add_one_connector()
143 		fb_helper->connector_info_alloc_count = count;  in __drm_fb_helper_add_one_connector()
144 		fb_helper->connector_info = temp;  in __drm_fb_helper_add_one_connector()
153 	fb_helper->connector_info[fb_helper->connector_count++] = fb_conn;  in __drm_fb_helper_add_one_connector()
158 int drm_fb_helper_add_one_connector(struct drm_fb_helper *fb_helper,  in drm_fb_helper_add_one_connector()  argument
163 	if (!fb_helper)  in drm_fb_helper_add_one_connector()
166 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_add_one_connector()
167 	err = __drm_fb_helper_add_one_connector(fb_helper, connector);  in drm_fb_helper_add_one_connector()
168 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_add_one_connector()
188 int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)  in drm_fb_helper_single_add_all_connectors()  argument
195 	if (!drm_fbdev_emulation || !fb_helper)  in drm_fb_helper_single_add_all_connectors()
198 	dev = fb_helper->dev;  in drm_fb_helper_single_add_all_connectors()
200 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_single_add_all_connectors()
203 		ret = __drm_fb_helper_add_one_connector(fb_helper, connector);  in drm_fb_helper_single_add_all_connectors()
210 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_fb_helper_single_add_all_connectors()
212 			fb_helper->connector_info[i];  in drm_fb_helper_single_add_all_connectors()
217 		fb_helper->connector_info[i] = NULL;  in drm_fb_helper_single_add_all_connectors()
219 	fb_helper->connector_count = 0;  in drm_fb_helper_single_add_all_connectors()
222 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_single_add_all_connectors()
228 static int __drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,  in __drm_fb_helper_remove_one_connector()  argument
237 	lockdep_assert_held(&fb_helper->lock);  in __drm_fb_helper_remove_one_connector()
239 	drm_fb_helper_for_each_connector(fb_helper, i) {  in __drm_fb_helper_remove_one_connector()
240 		if (fb_helper->connector_info[i]->connector == connector)  in __drm_fb_helper_remove_one_connector()
244 	if (i == fb_helper->connector_count)  in __drm_fb_helper_remove_one_connector()
246 	fb_helper_connector = fb_helper->connector_info[i];  in __drm_fb_helper_remove_one_connector()
249 	for (j = i + 1; j < fb_helper->connector_count; j++)  in __drm_fb_helper_remove_one_connector()
250 		fb_helper->connector_info[j - 1] = fb_helper->connector_info[j];  in __drm_fb_helper_remove_one_connector()
252 	fb_helper->connector_count--;  in __drm_fb_helper_remove_one_connector()
258 int drm_fb_helper_remove_one_connector(struct drm_fb_helper *fb_helper,  in drm_fb_helper_remove_one_connector()  argument
263 	if (!fb_helper)  in drm_fb_helper_remove_one_connector()
266 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_remove_one_connector()
267 	err = __drm_fb_helper_remove_one_connector(fb_helper, connector);  in drm_fb_helper_remove_one_connector()
268 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_remove_one_connector()
368 static int restore_fbdev_mode_atomic(struct drm_fb_helper *fb_helper, bool active)  in restore_fbdev_mode_atomic()  argument
370 	struct drm_device *dev = fb_helper->dev;  in restore_fbdev_mode_atomic()
405 	for (i = 0; i < fb_helper->crtc_count; i++) {  in restore_fbdev_mode_atomic()
406 		struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;  in restore_fbdev_mode_atomic()
411 		plane_state->rotation = fb_helper->crtc_info[i].rotation;  in restore_fbdev_mode_atomic()
449 static int restore_fbdev_mode_legacy(struct drm_fb_helper *fb_helper)  in restore_fbdev_mode_legacy()  argument
451 	struct drm_device *dev = fb_helper->dev;  in restore_fbdev_mode_legacy()
455 	drm_modeset_lock_all(fb_helper->dev);  in restore_fbdev_mode_legacy()
466 	for (i = 0; i < fb_helper->crtc_count; i++) {  in restore_fbdev_mode_legacy()
467 		struct drm_mode_set *mode_set = &fb_helper->crtc_info[i].mode_set;  in restore_fbdev_mode_legacy()
485 	drm_modeset_unlock_all(fb_helper->dev);  in restore_fbdev_mode_legacy()
490 static int restore_fbdev_mode(struct drm_fb_helper *fb_helper)  in restore_fbdev_mode()  argument
492 	struct drm_device *dev = fb_helper->dev;  in restore_fbdev_mode()
495 		return restore_fbdev_mode_atomic(fb_helper, true);  in restore_fbdev_mode()
497 		return restore_fbdev_mode_legacy(fb_helper);  in restore_fbdev_mode()
511 int drm_fb_helper_restore_fbdev_mode_unlocked(struct drm_fb_helper *fb_helper)  in drm_fb_helper_restore_fbdev_mode_unlocked()  argument
516 	if (!drm_fbdev_emulation || !fb_helper)  in drm_fb_helper_restore_fbdev_mode_unlocked()
519 	if (READ_ONCE(fb_helper->deferred_setup))  in drm_fb_helper_restore_fbdev_mode_unlocked()
522 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_restore_fbdev_mode_unlocked()
523 	ret = restore_fbdev_mode(fb_helper);  in drm_fb_helper_restore_fbdev_mode_unlocked()
525 	do_delayed = fb_helper->delayed_hotplug;  in drm_fb_helper_restore_fbdev_mode_unlocked()
527 		fb_helper->delayed_hotplug = false;  in drm_fb_helper_restore_fbdev_mode_unlocked()
528 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_restore_fbdev_mode_unlocked()
531 		drm_fb_helper_hotplug_event(fb_helper);  in drm_fb_helper_restore_fbdev_mode_unlocked()
537 static bool drm_fb_helper_is_bound(struct drm_fb_helper *fb_helper)  in drm_fb_helper_is_bound()  argument
539 	struct drm_device *dev = fb_helper->dev;  in drm_fb_helper_is_bound()
554 		if (crtc->primary->fb == fb_helper->fb)  in drm_fb_helper_is_bound()
617 static void dpms_legacy(struct drm_fb_helper *fb_helper, int dpms_mode)  in dpms_legacy()  argument
619 	struct drm_device *dev = fb_helper->dev;  in dpms_legacy()
625 	for (i = 0; i < fb_helper->crtc_count; i++) {  in dpms_legacy()
626 		crtc = fb_helper->crtc_info[i].mode_set.crtc;  in dpms_legacy()
632 		drm_fb_helper_for_each_connector(fb_helper, j) {  in dpms_legacy()
633 			connector = fb_helper->connector_info[j]->connector;  in dpms_legacy()
644 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_dpms()  local
649 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_dpms()
650 	if (!drm_fb_helper_is_bound(fb_helper)) {  in drm_fb_helper_dpms()
651 		mutex_unlock(&fb_helper->lock);  in drm_fb_helper_dpms()
655 	if (drm_drv_uses_atomic_modeset(fb_helper->dev))  in drm_fb_helper_dpms()
656 		restore_fbdev_mode_atomic(fb_helper, dpms_mode == DRM_MODE_DPMS_ON);  in drm_fb_helper_dpms()
658 		dpms_legacy(fb_helper, dpms_mode);  in drm_fb_helper_dpms()
659 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_dpms()
745 static void drm_fb_helper_dirty_blit_real(struct drm_fb_helper *fb_helper,  in drm_fb_helper_dirty_blit_real()  argument
748 	struct drm_framebuffer *fb = fb_helper->fb;  in drm_fb_helper_dirty_blit_real()
751 	void *src = fb_helper->fbdev->screen_buffer + offset;  in drm_fb_helper_dirty_blit_real()
752 	void *dst = fb_helper->buffer->vaddr + offset;  in drm_fb_helper_dirty_blit_real()
826 		       struct drm_fb_helper *fb_helper,  in drm_fb_helper_init()  argument
834 		dev->fb_helper = fb_helper;  in drm_fb_helper_init()
841 	fb_helper->crtc_info = kcalloc(config->num_crtc, sizeof(struct drm_fb_helper_crtc), GFP_KERNEL);  in drm_fb_helper_init()
842 	if (!fb_helper->crtc_info)  in drm_fb_helper_init()
845 	fb_helper->crtc_count = config->num_crtc;  in drm_fb_helper_init()
846 …fb_helper->connector_info = kcalloc(dev->mode_config.num_connector, sizeof(struct drm_fb_helper_co…  in drm_fb_helper_init()
847 	if (!fb_helper->connector_info) {  in drm_fb_helper_init()
848 		kfree(fb_helper->crtc_info);  in drm_fb_helper_init()
851 	fb_helper->connector_info_alloc_count = dev->mode_config.num_connector;  in drm_fb_helper_init()
852 	fb_helper->connector_count = 0;  in drm_fb_helper_init()
854 	for (i = 0; i < fb_helper->crtc_count; i++) {  in drm_fb_helper_init()
855 		fb_helper->crtc_info[i].mode_set.connectors =  in drm_fb_helper_init()
860 		if (!fb_helper->crtc_info[i].mode_set.connectors)  in drm_fb_helper_init()
862 		fb_helper->crtc_info[i].mode_set.num_connectors = 0;  in drm_fb_helper_init()
863 		fb_helper->crtc_info[i].rotation = DRM_MODE_ROTATE_0;  in drm_fb_helper_init()
868 		fb_helper->crtc_info[i].mode_set.crtc = crtc;  in drm_fb_helper_init()
872 	dev->fb_helper = fb_helper;  in drm_fb_helper_init()
876 	drm_fb_helper_crtc_free(fb_helper);  in drm_fb_helper_init()
894 struct fb_info *drm_fb_helper_alloc_fbi(struct drm_fb_helper *fb_helper)  in drm_fb_helper_alloc_fbi()  argument
896 	struct device *dev = fb_helper->dev->dev;  in drm_fb_helper_alloc_fbi()
914 	fb_helper->fbdev = info;  in drm_fb_helper_alloc_fbi()
934 void drm_fb_helper_unregister_fbi(struct drm_fb_helper *fb_helper)  in drm_fb_helper_unregister_fbi()  argument
936 	if (fb_helper && fb_helper->fbdev)  in drm_fb_helper_unregister_fbi()
937 		unregister_framebuffer(fb_helper->fbdev);  in drm_fb_helper_unregister_fbi()
948 void drm_fb_helper_fini(struct drm_fb_helper *fb_helper)  in drm_fb_helper_fini()  argument
952 	if (!fb_helper)  in drm_fb_helper_fini()
955 	fb_helper->dev->fb_helper = NULL;  in drm_fb_helper_fini()
960 	cancel_work_sync(&fb_helper->resume_work);  in drm_fb_helper_fini()
961 	cancel_work_sync(&fb_helper->dirty_work);  in drm_fb_helper_fini()
963 	info = fb_helper->fbdev;  in drm_fb_helper_fini()
969 	fb_helper->fbdev = NULL;  in drm_fb_helper_fini()
972 	if (!list_empty(&fb_helper->kernel_fb_list)) {  in drm_fb_helper_fini()
973 		list_del(&fb_helper->kernel_fb_list);  in drm_fb_helper_fini()
979 	mutex_destroy(&fb_helper->lock);  in drm_fb_helper_fini()
980 	drm_fb_helper_crtc_free(fb_helper);  in drm_fb_helper_fini()
991 void drm_fb_helper_unlink_fbi(struct drm_fb_helper *fb_helper)  in drm_fb_helper_unlink_fbi()  argument
993 	if (fb_helper && fb_helper->fbdev)  in drm_fb_helper_unlink_fbi()
994 		unlink_framebuffer(fb_helper->fbdev);  in drm_fb_helper_unlink_fbi()
1067 int drm_fb_helper_defio_init(struct drm_fb_helper *fb_helper)  in drm_fb_helper_defio_init()  argument
1069 	struct fb_info *info = fb_helper->fbdev;  in drm_fb_helper_defio_init()
1238 void drm_fb_helper_set_suspend(struct drm_fb_helper *fb_helper, bool suspend)  in drm_fb_helper_set_suspend()  argument
1240 	if (fb_helper && fb_helper->fbdev)  in drm_fb_helper_set_suspend()
1241 		fb_set_suspend(fb_helper->fbdev, suspend);  in drm_fb_helper_set_suspend()
1261 void drm_fb_helper_set_suspend_unlocked(struct drm_fb_helper *fb_helper,  in drm_fb_helper_set_suspend_unlocked()  argument
1264 	if (!fb_helper || !fb_helper->fbdev)  in drm_fb_helper_set_suspend_unlocked()
1268 	flush_work(&fb_helper->resume_work);  in drm_fb_helper_set_suspend_unlocked()
1271 		if (fb_helper->fbdev->state != FBINFO_STATE_RUNNING)  in drm_fb_helper_set_suspend_unlocked()
1277 		if (fb_helper->fbdev->state == FBINFO_STATE_RUNNING)  in drm_fb_helper_set_suspend_unlocked()
1281 			schedule_work(&fb_helper->resume_work);  in drm_fb_helper_set_suspend_unlocked()
1286 	fb_set_suspend(fb_helper->fbdev, suspend);  in drm_fb_helper_set_suspend_unlocked()
1325 	struct drm_fb_helper *fb_helper = info->par;  in setcmap_legacy()  local
1330 	drm_modeset_lock_all(fb_helper->dev);  in setcmap_legacy()
1331 	for (i = 0; i < fb_helper->crtc_count; i++) {  in setcmap_legacy()
1332 		crtc = fb_helper->crtc_info[i].mode_set.crtc;  in setcmap_legacy()
1352 	drm_modeset_unlock_all(fb_helper->dev);  in setcmap_legacy()
1402 	struct drm_fb_helper *fb_helper = info->par;  in setcmap_atomic()  local
1403 	struct drm_device *dev = fb_helper->dev;  in setcmap_atomic()
1423 	for (i = 0; i < fb_helper->crtc_count; i++) {  in setcmap_atomic()
1424 		crtc = fb_helper->crtc_info[i].mode_set.crtc;  in setcmap_atomic()
1452 	for (i = 0; i < fb_helper->crtc_count; i++) {  in setcmap_atomic()
1453 		crtc = fb_helper->crtc_info[i].mode_set.crtc;  in setcmap_atomic()
1489 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_setcmap()  local
1495 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_setcmap()
1497 	if (!drm_fb_helper_is_bound(fb_helper)) {  in drm_fb_helper_setcmap()
1504 	else if (drm_drv_uses_atomic_modeset(fb_helper->dev))  in drm_fb_helper_setcmap()
1510 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_setcmap()
1528 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_ioctl()  local
1533 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_ioctl()
1534 	if (!drm_fb_helper_is_bound(fb_helper)) {  in drm_fb_helper_ioctl()
1557 		mode_set = &fb_helper->crtc_info[0].mode_set;  in drm_fb_helper_ioctl()
1578 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_ioctl()
1610 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_check_var()  local
1611 	struct drm_framebuffer *fb = fb_helper->fb;  in drm_fb_helper_check_var()
1654 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_set_par()  local
1665 	drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);  in drm_fb_helper_set_par()
1671 static void pan_set(struct drm_fb_helper *fb_helper, int x, int y)  in pan_set()  argument
1675 	for (i = 0; i < fb_helper->crtc_count; i++) {  in pan_set()
1678 		mode_set = &fb_helper->crtc_info[i].mode_set;  in pan_set()
1688 	struct drm_fb_helper *fb_helper = info->par;  in pan_display_atomic()  local
1691 	pan_set(fb_helper, var->xoffset, var->yoffset);  in pan_display_atomic()
1693 	ret = restore_fbdev_mode_atomic(fb_helper, true);  in pan_display_atomic()
1698 		pan_set(fb_helper, info->var.xoffset, info->var.yoffset);  in pan_display_atomic()
1706 	struct drm_fb_helper *fb_helper = info->par;  in pan_display_legacy()  local
1711 	drm_modeset_lock_all(fb_helper->dev);  in pan_display_legacy()
1712 	for (i = 0; i < fb_helper->crtc_count; i++) {  in pan_display_legacy()
1713 		modeset = &fb_helper->crtc_info[i].mode_set;  in pan_display_legacy()
1726 	drm_modeset_unlock_all(fb_helper->dev);  in pan_display_legacy()
1739 	struct drm_fb_helper *fb_helper = info->par;  in drm_fb_helper_pan_display()  local
1740 	struct drm_device *dev = fb_helper->dev;  in drm_fb_helper_pan_display()
1746 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_pan_display()
1747 	if (!drm_fb_helper_is_bound(fb_helper)) {  in drm_fb_helper_pan_display()
1748 		mutex_unlock(&fb_helper->lock);  in drm_fb_helper_pan_display()
1756 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_pan_display()
1766 static int drm_fb_helper_single_fb_probe(struct drm_fb_helper *fb_helper,  in drm_fb_helper_single_fb_probe()  argument
1786 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_fb_helper_single_fb_probe()
1787 		struct drm_fb_helper_connector *fb_helper_conn = fb_helper->connector_info[i];  in drm_fb_helper_single_fb_probe()
1817 	for (i = 0; i < fb_helper->crtc_count; i++) {  in drm_fb_helper_single_fb_probe()
1827 		desired_mode = fb_helper->crtc_info[i].desired_mode;  in drm_fb_helper_single_fb_probe()
1828 		mode_set = &fb_helper->crtc_info[i].mode_set;  in drm_fb_helper_single_fb_probe()
1835 		x = fb_helper->crtc_info[i].x;  in drm_fb_helper_single_fb_probe()
1836 		y = fb_helper->crtc_info[i].y;  in drm_fb_helper_single_fb_probe()
1839 			gamma_size = fb_helper->crtc_info[i].mode_set.crtc->gamma_size;  in drm_fb_helper_single_fb_probe()
1865 		if (!fb_helper->deferred_setup && !READ_ONCE(fb_helper->dev->master))  in drm_fb_helper_single_fb_probe()
1866 			restore_fbdev_mode(fb_helper);  in drm_fb_helper_single_fb_probe()
1875 	ret = (*fb_helper->funcs->fb_probe)(fb_helper, &sizes);  in drm_fb_helper_single_fb_probe()
1879 	strcpy(fb_helper->fb->comm, "[fbcon]");  in drm_fb_helper_single_fb_probe()
1928 void drm_fb_helper_fill_var(struct fb_info *info, struct drm_fb_helper *fb_helper,  in drm_fb_helper_fill_var()  argument
1931 	struct drm_framebuffer *fb = fb_helper->fb;  in drm_fb_helper_fill_var()
1933 	info->pseudo_palette = fb_helper->pseudo_palette;  in drm_fb_helper_fill_var()
2001 static int drm_fb_helper_probe_connector_modes(struct drm_fb_helper *fb_helper,  in drm_fb_helper_probe_connector_modes()  argument
2008 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_fb_helper_probe_connector_modes()
2009 		connector = fb_helper->connector_info[i]->connector;  in drm_fb_helper_probe_connector_modes()
2103 static void drm_enable_connectors(struct drm_fb_helper *fb_helper,  in drm_enable_connectors()  argument
2110 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_enable_connectors()
2111 		connector = fb_helper->connector_info[i]->connector;  in drm_enable_connectors()
2122 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_enable_connectors()
2123 		connector = fb_helper->connector_info[i]->connector;  in drm_enable_connectors()
2128 static bool drm_target_cloned(struct drm_fb_helper *fb_helper,  in drm_target_cloned()  argument
2139 	if (fb_helper->crtc_count > 1)  in drm_target_cloned()
2143 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_target_cloned()
2154 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_target_cloned()
2157 		fb_helper_conn = fb_helper->connector_info[i];  in drm_target_cloned()
2182 	dmt_mode = drm_mode_find_dmt(fb_helper->dev, 1024, 768, 60, false);  in drm_target_cloned()
2184 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_target_cloned()
2188 		fb_helper_conn = fb_helper->connector_info[i];  in drm_target_cloned()
2209 static int drm_get_tile_offsets(struct drm_fb_helper *fb_helper,  in drm_get_tile_offsets()  argument
2219 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_get_tile_offsets()
2220 		fb_helper_conn = fb_helper->connector_info[i];  in drm_get_tile_offsets()
2241 static bool drm_target_preferred(struct drm_fb_helper *fb_helper,  in drm_target_preferred()  argument
2247 	const u64 mask = BIT_ULL(fb_helper->connector_count) - 1;  in drm_target_preferred()
2253 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_target_preferred()
2254 		fb_helper_conn = fb_helper->connector_info[i];  in drm_target_preferred()
2283 			drm_get_tile_offsets(fb_helper, modes, offsets,  in drm_target_preferred()
2327 static int drm_pick_crtcs(struct drm_fb_helper *fb_helper,  in drm_pick_crtcs()  argument
2338 	if (n == fb_helper->connector_count)  in drm_pick_crtcs()
2341 	fb_helper_conn = fb_helper->connector_info[n];  in drm_pick_crtcs()
2345 	best_score = drm_pick_crtcs(fb_helper, best_crtcs, modes, n+1, width, height);  in drm_pick_crtcs()
2349 	crtcs = kcalloc(fb_helper->connector_count,  in drm_pick_crtcs()
2366 	for (c = 0; c < fb_helper->crtc_count; c++) {  in drm_pick_crtcs()
2367 		crtc = &fb_helper->crtc_info[c];  in drm_pick_crtcs()
2379 			if (fb_helper->crtc_count > 1)  in drm_pick_crtcs()
2388 		score = my_score + drm_pick_crtcs(fb_helper, crtcs, modes, n + 1,  in drm_pick_crtcs()
2393 			       fb_helper->connector_count *  in drm_pick_crtcs()
2411 static void drm_setup_crtc_rotation(struct drm_fb_helper *fb_helper,  in drm_setup_crtc_rotation()  argument
2441 		fb_helper->sw_rotations |= rotation;  in drm_setup_crtc_rotation()
2449 		fb_helper->sw_rotations |= rotation;  in drm_setup_crtc_rotation()
2455 	fb_helper->sw_rotations |= DRM_MODE_ROTATE_0;  in drm_setup_crtc_rotation()
2458 static void drm_setup_crtcs(struct drm_fb_helper *fb_helper,  in drm_setup_crtcs()  argument
2461 	struct drm_device *dev = fb_helper->dev;  in drm_setup_crtcs()
2470 	lockdep_assert_held(&fb_helper->lock);  in drm_setup_crtcs()
2472 	crtcs = kcalloc(fb_helper->connector_count,  in drm_setup_crtcs()
2474 	modes = kcalloc(fb_helper->connector_count,  in drm_setup_crtcs()
2476 	offsets = kcalloc(fb_helper->connector_count,  in drm_setup_crtcs()
2478 	enabled = kcalloc(fb_helper->connector_count,  in drm_setup_crtcs()
2485 	mutex_lock(&fb_helper->dev->mode_config.mutex);  in drm_setup_crtcs()
2486 	if (drm_fb_helper_probe_connector_modes(fb_helper, width, height) == 0)  in drm_setup_crtcs()
2488 	drm_enable_connectors(fb_helper, enabled);  in drm_setup_crtcs()
2490 	if (!(fb_helper->funcs->initial_config &&  in drm_setup_crtcs()
2491 	      fb_helper->funcs->initial_config(fb_helper, crtcs, modes,  in drm_setup_crtcs()
2494 		memset(modes, 0, fb_helper->connector_count*sizeof(modes[0]));  in drm_setup_crtcs()
2495 		memset(crtcs, 0, fb_helper->connector_count*sizeof(crtcs[0]));  in drm_setup_crtcs()
2496 		memset(offsets, 0, fb_helper->connector_count*sizeof(offsets[0]));  in drm_setup_crtcs()
2498 		if (!drm_target_cloned(fb_helper, modes, offsets,  in drm_setup_crtcs()
2500 		    !drm_target_preferred(fb_helper, modes, offsets,  in drm_setup_crtcs()
2507 		drm_pick_crtcs(fb_helper, crtcs, modes, 0, width, height);  in drm_setup_crtcs()
2509 	mutex_unlock(&fb_helper->dev->mode_config.mutex);  in drm_setup_crtcs()
2513 	for (i = 0; i < fb_helper->crtc_count; i++)  in drm_setup_crtcs()
2514 		drm_fb_helper_modeset_release(fb_helper,  in drm_setup_crtcs()
2515 					      &fb_helper->crtc_info[i].mode_set);  in drm_setup_crtcs()
2517 	fb_helper->sw_rotations = 0;  in drm_setup_crtcs()
2518 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_setup_crtcs()
2526 				fb_helper->connector_info[i]->connector;  in drm_setup_crtcs()
2537 			drm_setup_crtc_rotation(fb_helper, fb_crtc, connector);  in drm_setup_crtcs()
2557 static void drm_setup_crtcs_fb(struct drm_fb_helper *fb_helper)  in drm_setup_crtcs_fb()  argument
2559 	struct fb_info *info = fb_helper->fbdev;  in drm_setup_crtcs_fb()
2562 	for (i = 0; i < fb_helper->crtc_count; i++)  in drm_setup_crtcs_fb()
2563 		if (fb_helper->crtc_info[i].mode_set.num_connectors)  in drm_setup_crtcs_fb()
2564 			fb_helper->crtc_info[i].mode_set.fb = fb_helper->fb;  in drm_setup_crtcs_fb()
2566 	mutex_lock(&fb_helper->dev->mode_config.mutex);  in drm_setup_crtcs_fb()
2567 	drm_fb_helper_for_each_connector(fb_helper, i) {  in drm_setup_crtcs_fb()
2569 					fb_helper->connector_info[i]->connector;  in drm_setup_crtcs_fb()
2578 	mutex_unlock(&fb_helper->dev->mode_config.mutex);  in drm_setup_crtcs_fb()
2580 	switch (fb_helper->sw_rotations) {  in drm_setup_crtcs_fb()
2605 __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper,  in __drm_fb_helper_initial_config_and_unlock()  argument
2608 	struct drm_device *dev = fb_helper->dev;  in __drm_fb_helper_initial_config_and_unlock()
2616 	drm_setup_crtcs(fb_helper, width, height);  in __drm_fb_helper_initial_config_and_unlock()
2617 	ret = drm_fb_helper_single_fb_probe(fb_helper, bpp_sel);  in __drm_fb_helper_initial_config_and_unlock()
2620 			fb_helper->preferred_bpp = bpp_sel;  in __drm_fb_helper_initial_config_and_unlock()
2621 			fb_helper->deferred_setup = true;  in __drm_fb_helper_initial_config_and_unlock()
2624 		mutex_unlock(&fb_helper->lock);  in __drm_fb_helper_initial_config_and_unlock()
2628 	drm_setup_crtcs_fb(fb_helper);  in __drm_fb_helper_initial_config_and_unlock()
2630 	fb_helper->deferred_setup = false;  in __drm_fb_helper_initial_config_and_unlock()
2632 	info = fb_helper->fbdev;  in __drm_fb_helper_initial_config_and_unlock()
2638 	mutex_unlock(&fb_helper->lock);  in __drm_fb_helper_initial_config_and_unlock()
2651 	list_add(&fb_helper->kernel_fb_list, &kernel_fb_helper_list);  in __drm_fb_helper_initial_config_and_unlock()
2699 int drm_fb_helper_initial_config(struct drm_fb_helper *fb_helper, int bpp_sel)  in drm_fb_helper_initial_config()  argument
2706 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_initial_config()
2707 	ret = __drm_fb_helper_initial_config_and_unlock(fb_helper, bpp_sel);  in drm_fb_helper_initial_config()
2734 int drm_fb_helper_hotplug_event(struct drm_fb_helper *fb_helper)  in drm_fb_helper_hotplug_event()  argument
2738 	if (!drm_fbdev_emulation || !fb_helper)  in drm_fb_helper_hotplug_event()
2741 	mutex_lock(&fb_helper->lock);  in drm_fb_helper_hotplug_event()
2742 	if (fb_helper->deferred_setup) {  in drm_fb_helper_hotplug_event()
2743 		err = __drm_fb_helper_initial_config_and_unlock(fb_helper,  in drm_fb_helper_hotplug_event()
2744 				fb_helper->preferred_bpp);  in drm_fb_helper_hotplug_event()
2748 	if (!fb_helper->fb || !drm_fb_helper_is_bound(fb_helper)) {  in drm_fb_helper_hotplug_event()
2749 		fb_helper->delayed_hotplug = true;  in drm_fb_helper_hotplug_event()
2750 		mutex_unlock(&fb_helper->lock);  in drm_fb_helper_hotplug_event()
2756 	drm_setup_crtcs(fb_helper, fb_helper->fb->width, fb_helper->fb->height);  in drm_fb_helper_hotplug_event()
2757 	drm_setup_crtcs_fb(fb_helper);  in drm_fb_helper_hotplug_event()
2758 	mutex_unlock(&fb_helper->lock);  in drm_fb_helper_hotplug_event()
2760 	drm_fb_helper_set_par(fb_helper->fbdev);  in drm_fb_helper_hotplug_event()
2788 			      struct drm_fb_helper *fb_helper,  in drm_fb_helper_fbdev_setup()  argument
2807 	drm_fb_helper_prepare(dev, fb_helper, funcs);  in drm_fb_helper_fbdev_setup()
2809 	ret = drm_fb_helper_init(dev, fb_helper, max_conn_count);  in drm_fb_helper_fbdev_setup()
2815 	ret = drm_fb_helper_single_add_all_connectors(fb_helper);  in drm_fb_helper_fbdev_setup()
2824 	ret = drm_fb_helper_initial_config(fb_helper, preferred_bpp);  in drm_fb_helper_fbdev_setup()
2833 	drm_fb_helper_fini(fb_helper);  in drm_fb_helper_fbdev_setup()
2856 	struct drm_fb_helper *fb_helper = dev->fb_helper;  in drm_fb_helper_fbdev_teardown()  local
2859 	if (!fb_helper)  in drm_fb_helper_fbdev_teardown()
2863 	if (fb_helper->fbdev && fb_helper->fbdev->dev)  in drm_fb_helper_fbdev_teardown()
2864 		drm_fb_helper_unregister_fbi(fb_helper);  in drm_fb_helper_fbdev_teardown()
2866 	if (fb_helper->fbdev && fb_helper->fbdev->fbdefio) {  in drm_fb_helper_fbdev_teardown()
2867 		fb_deferred_io_cleanup(fb_helper->fbdev);  in drm_fb_helper_fbdev_teardown()
2868 		kfree(fb_helper->fbdev->fbdefio);  in drm_fb_helper_fbdev_teardown()
2869 		fbops = fb_helper->fbdev->fbops;  in drm_fb_helper_fbdev_teardown()
2872 	drm_fb_helper_fini(fb_helper);  in drm_fb_helper_fbdev_teardown()
2875 	if (fb_helper->fb)  in drm_fb_helper_fbdev_teardown()
2876 		drm_framebuffer_remove(fb_helper->fb);  in drm_fb_helper_fbdev_teardown()
2889 	drm_fb_helper_restore_fbdev_mode_unlocked(dev->fb_helper);  in drm_fb_helper_lastclose()
2904 	drm_fb_helper_hotplug_event(dev->fb_helper);  in drm_fb_helper_output_poll_changed()
2911 	struct drm_fb_helper *fb_helper = info->par;  in drm_fbdev_fb_open()  local
2913 	if (!try_module_get(fb_helper->dev->driver->fops->owner))  in drm_fbdev_fb_open()
2921 	struct drm_fb_helper *fb_helper = info->par;  in drm_fbdev_fb_release()  local
2923 	module_put(fb_helper->dev->driver->fops->owner);  in drm_fbdev_fb_release()
2934 	struct drm_fb_helper *fb_helper = info->par;  in drm_fbdev_fb_destroy()  local
2935 	struct fb_info *fbi = fb_helper->fbdev;  in drm_fbdev_fb_destroy()
2945 	drm_fb_helper_fini(fb_helper);  in drm_fbdev_fb_destroy()
2952 	drm_client_framebuffer_delete(fb_helper->buffer);  in drm_fbdev_fb_destroy()
2958 	if (fb_helper->client.funcs) {  in drm_fbdev_fb_destroy()
2959 		drm_client_release(&fb_helper->client);  in drm_fbdev_fb_destroy()
2960 		kfree(fb_helper);  in drm_fbdev_fb_destroy()
2966 	struct drm_fb_helper *fb_helper = info->par;  in drm_fbdev_fb_mmap()  local
2968 	if (fb_helper->dev->driver->gem_prime_mmap)  in drm_fbdev_fb_mmap()
2969 		return fb_helper->dev->driver->gem_prime_mmap(fb_helper->buffer->gem, vma);  in drm_fbdev_fb_mmap()
3006 int drm_fb_helper_generic_probe(struct drm_fb_helper *fb_helper,  in drm_fb_helper_generic_probe()  argument
3009 	struct drm_client_dev *client = &fb_helper->client;  in drm_fb_helper_generic_probe()
3026 	fb_helper->buffer = buffer;  in drm_fb_helper_generic_probe()
3027 	fb_helper->fb = buffer->fb;  in drm_fb_helper_generic_probe()
3030 	fbi = drm_fb_helper_alloc_fbi(fb_helper);  in drm_fb_helper_generic_probe()
3036 	fbi->par = fb_helper;  in drm_fb_helper_generic_probe()
3044 	drm_fb_helper_fill_var(fbi, fb_helper, sizes->fb_width, sizes->fb_height);  in drm_fb_helper_generic_probe()
3074 	drm_fb_helper_fini(fb_helper);  in drm_fb_helper_generic_probe()
3088 	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);  in drm_fbdev_client_unregister()  local
3090 	if (fb_helper->fbdev) {  in drm_fbdev_client_unregister()
3091 		drm_fb_helper_unregister_fbi(fb_helper);  in drm_fbdev_client_unregister()
3097 	if (fb_helper->dev)  in drm_fbdev_client_unregister()
3098 		drm_fb_helper_fini(fb_helper);  in drm_fbdev_client_unregister()
3101 	kfree(fb_helper);  in drm_fbdev_client_unregister()
3106 	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);  in drm_fbdev_client_restore()  local
3108 	drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);  in drm_fbdev_client_restore()
3115 	struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);  in drm_fbdev_client_hotplug()  local
3120 	if (!fb_helper->dev && fb_helper->funcs)  in drm_fbdev_client_hotplug()
3123 	if (dev->fb_helper)  in drm_fbdev_client_hotplug()
3124 		return drm_fb_helper_hotplug_event(dev->fb_helper);  in drm_fbdev_client_hotplug()
3129 	ret = drm_fb_helper_fbdev_setup(dev, fb_helper, &drm_fb_helper_generic_funcs,  in drm_fbdev_client_hotplug()
3130 					fb_helper->preferred_bpp, 0);  in drm_fbdev_client_hotplug()
3132 		fb_helper->dev = NULL;  in drm_fbdev_client_hotplug()
3133 		fb_helper->fbdev = NULL;  in drm_fbdev_client_hotplug()
3172 	struct drm_fb_helper *fb_helper;  in drm_fbdev_generic_setup()  local
3178 	fb_helper = kzalloc(sizeof(*fb_helper), GFP_KERNEL);  in drm_fbdev_generic_setup()
3179 	if (!fb_helper)  in drm_fbdev_generic_setup()
3182 	ret = drm_client_init(dev, &fb_helper->client, "fbdev", &drm_fbdev_client_funcs);  in drm_fbdev_generic_setup()
3184 		kfree(fb_helper);  in drm_fbdev_generic_setup()
3188 	drm_client_add(&fb_helper->client);  in drm_fbdev_generic_setup()
3190 	fb_helper->preferred_bpp = preferred_bpp;  in drm_fbdev_generic_setup()
3192 	drm_fbdev_client_hotplug(&fb_helper->client);  in drm_fbdev_generic_setup()