149 struct vgasr_priv {  struct
170 static void vga_switcheroo_debugfs_init(struct vgasr_priv *priv);  argument
171 static void vga_switcheroo_debugfs_fini(struct vgasr_priv *priv);
174 static struct vgasr_priv vgasr_priv = {  variable
175 	.clients = LIST_HEAD_INIT(vgasr_priv.clients),
176 	.mux_hw_lock = __MUTEX_INITIALIZER(vgasr_priv.mux_hw_lock),
182 	return !vgasr_priv.active &&  in vga_switcheroo_ready()
183 	       vgasr_priv.registered_clients == 2 && vgasr_priv.handler;  in vga_switcheroo_ready()
192 	if (vgasr_priv.handler->init)  in vga_switcheroo_enable()
193 		vgasr_priv.handler->init();  in vga_switcheroo_enable()
195 	list_for_each_entry(client, &vgasr_priv.clients, list) {  in vga_switcheroo_enable()
200 		ret = vgasr_priv.handler->get_client_id(client->pdev);  in vga_switcheroo_enable()
207 	list_for_each_entry(client, &vgasr_priv.clients, list) {  in vga_switcheroo_enable()
212 		ret = vgasr_priv.handler->get_client_id(client->vga_dev);  in vga_switcheroo_enable()
221 	vga_switcheroo_debugfs_init(&vgasr_priv);  in vga_switcheroo_enable()
222 	vgasr_priv.active = true;  in vga_switcheroo_enable()
240 	if (vgasr_priv.handler) {  in vga_switcheroo_register_handler()
245 	vgasr_priv.handler = handler;  in vga_switcheroo_register_handler()
246 	vgasr_priv.handler_flags = handler_flags;  in vga_switcheroo_register_handler()
264 	mutex_lock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_unregister_handler()
265 	vgasr_priv.handler_flags = 0;  in vga_switcheroo_unregister_handler()
266 	vgasr_priv.handler = NULL;  in vga_switcheroo_unregister_handler()
267 	if (vgasr_priv.active) {  in vga_switcheroo_unregister_handler()
269 		vga_switcheroo_debugfs_fini(&vgasr_priv);  in vga_switcheroo_unregister_handler()
270 		vgasr_priv.active = false;  in vga_switcheroo_unregister_handler()
272 	mutex_unlock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_unregister_handler()
287 	return vgasr_priv.handler_flags;  in vga_switcheroo_handler_flags()
313 	list_add_tail(&client->list, &vgasr_priv.clients);  in register_client()
315 		vgasr_priv.registered_clients++;  in register_client()
376 	if (vgasr_priv.active) {  in vga_switcheroo_register_audio_client()
377 		id = vgasr_priv.handler->get_client_id(vga_dev);  in vga_switcheroo_register_audio_client()
446 		    !vgasr_priv.handler_flags)  in vga_switcheroo_client_probe_defer()
482 	client = find_client_from_pci(&vgasr_priv.clients, pdev);  in vga_switcheroo_get_client_state()
503 	client = find_client_from_pci(&vgasr_priv.clients, pdev);  in vga_switcheroo_unregister_client()
506 			vgasr_priv.registered_clients--;  in vga_switcheroo_unregister_client()
510 	if (vgasr_priv.active && vgasr_priv.registered_clients < 2) {  in vga_switcheroo_unregister_client()
512 		vga_switcheroo_debugfs_fini(&vgasr_priv);  in vga_switcheroo_unregister_client()
513 		vgasr_priv.active = false;  in vga_switcheroo_unregister_client()
533 	client = find_client_from_pci(&vgasr_priv.clients, pdev);  in vga_switcheroo_client_fb_set()
563 	mutex_lock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_lock_ddc()
564 	if (!vgasr_priv.handler || !vgasr_priv.handler->switch_ddc) {  in vga_switcheroo_lock_ddc()
565 		vgasr_priv.old_ddc_owner = -ENODEV;  in vga_switcheroo_lock_ddc()
569 	id = vgasr_priv.handler->get_client_id(pdev);  in vga_switcheroo_lock_ddc()
570 	vgasr_priv.old_ddc_owner = vgasr_priv.handler->switch_ddc(id);  in vga_switcheroo_lock_ddc()
571 	return vgasr_priv.old_ddc_owner;  in vga_switcheroo_lock_ddc()
594 	int ret = vgasr_priv.old_ddc_owner;  in vga_switcheroo_unlock_ddc()
596 	if (WARN_ON_ONCE(!mutex_is_locked(&vgasr_priv.mux_hw_lock)))  in vga_switcheroo_unlock_ddc()
599 	if (vgasr_priv.old_ddc_owner >= 0) {  in vga_switcheroo_unlock_ddc()
600 		id = vgasr_priv.handler->get_client_id(pdev);  in vga_switcheroo_unlock_ddc()
601 		if (vgasr_priv.old_ddc_owner != id)  in vga_switcheroo_unlock_ddc()
602 			ret = vgasr_priv.handler->switch_ddc(  in vga_switcheroo_unlock_ddc()
603 						     vgasr_priv.old_ddc_owner);  in vga_switcheroo_unlock_ddc()
605 	mutex_unlock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_unlock_ddc()
652 	list_for_each_entry(client, &vgasr_priv.clients, list) {  in vga_switcheroo_show()
676 	if (vgasr_priv.handler->power_state)  in vga_switchon()
677 		vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_ON);  in vga_switchon()
690 	if (vgasr_priv.handler->power_state)  in vga_switchoff()
691 		vgasr_priv.handler->power_state(client->id, VGA_SWITCHEROO_OFF);  in vga_switchoff()
701 	client = find_client_from_id(&vgasr_priv.clients, id | ID_BIT_AUDIO);  in set_audio_state()
711 	active = find_active_client(&vgasr_priv.clients);  in vga_switchto_stage1()
728 	active = find_active_client(&vgasr_priv.clients);  in vga_switchto_stage2()
741 	mutex_lock(&vgasr_priv.mux_hw_lock);  in vga_switchto_stage2()
742 	ret = vgasr_priv.handler->switchto(new_client->id);  in vga_switchto_stage2()
743 	mutex_unlock(&vgasr_priv.mux_hw_lock);  in vga_switchto_stage2()
765 	list_for_each_entry(client, &vgasr_priv.clients, list) {  in check_can_switch()
793 	if (!vgasr_priv.active) {  in vga_switcheroo_debugfs_write()
800 		list_for_each_entry(client, &vgasr_priv.clients, list) {  in vga_switcheroo_debugfs_write()
813 		list_for_each_entry(client, &vgasr_priv.clients, list) {  in vga_switcheroo_debugfs_write()
853 	client = find_client_from_id(&vgasr_priv.clients, client_id);  in vga_switcheroo_debugfs_write()
857 	vgasr_priv.delayed_switch_active = false;  in vga_switcheroo_debugfs_write()
860 		mutex_lock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_debugfs_write()
861 		ret = vgasr_priv.handler->switchto(client_id);  in vga_switcheroo_debugfs_write()
862 		mutex_unlock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_debugfs_write()
886 		vgasr_priv.delayed_switch_active = true;  in vga_switcheroo_debugfs_write()
887 		vgasr_priv.delayed_client_id = client_id;  in vga_switcheroo_debugfs_write()
908 static void vga_switcheroo_debugfs_fini(struct vgasr_priv *priv)  in vga_switcheroo_debugfs_fini()
914 static void vga_switcheroo_debugfs_init(struct vgasr_priv *priv)  in vga_switcheroo_debugfs_init()
943 	if (!vgasr_priv.delayed_switch_active)  in vga_switcheroo_process_delayed_switch()
947 		vgasr_priv.delayed_client_id);  in vga_switcheroo_process_delayed_switch()
949 	client = find_client_from_id(&vgasr_priv.clients,  in vga_switcheroo_process_delayed_switch()
950 				     vgasr_priv.delayed_client_id);  in vga_switcheroo_process_delayed_switch()
958 	vgasr_priv.delayed_switch_active = false;  in vga_switcheroo_process_delayed_switch()
1000 	if (!vgasr_priv.handler->power_state)  in vga_switcheroo_power_switch()
1003 	client = find_client_from_pci(&vgasr_priv.clients, pdev);  in vga_switcheroo_power_switch()
1010 	vgasr_priv.handler->power_state(client->id, state);  in vga_switcheroo_power_switch()
1023 	if (vgasr_priv.handler->switchto) {  in vga_switcheroo_runtime_suspend()
1024 		mutex_lock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_runtime_suspend()
1025 		vgasr_priv.handler->switchto(VGA_SWITCHEROO_IGD);  in vga_switcheroo_runtime_suspend()
1026 		mutex_unlock(&vgasr_priv.mux_hw_lock);  in vga_switcheroo_runtime_suspend()