130 	struct vga_device *vgadev;  in vgadev_find()  local
132 	list_for_each_entry(vgadev, &vga_list, list)  in vgadev_find()
133 		if (pdev == vgadev->pdev)  in vgadev_find()
134 			return vgadev;  in vgadev_find()
171 static inline void vga_irq_set_state(struct vga_device *vgadev, bool state)  in vga_irq_set_state()  argument
173 	if (vgadev->irq_set_state)  in vga_irq_set_state()
174 		vgadev->irq_set_state(vgadev->cookie, state);  in vga_irq_set_state()
192 static struct vga_device *__vga_tryget(struct vga_device *vgadev,  in __vga_tryget()  argument
195 	struct device *dev = &vgadev->pdev->dev;  in __vga_tryget()
205 	    (vgadev->decodes & VGA_RSRC_LEGACY_IO))  in __vga_tryget()
208 	    (vgadev->decodes & VGA_RSRC_LEGACY_MEM))  in __vga_tryget()
212 	vgaarb_dbg(dev, "%s: owns: %d\n", __func__, vgadev->owns);  in __vga_tryget()
215 	wants = rsrc & ~vgadev->owns;  in __vga_tryget()
234 		if (vgadev == conflict)  in __vga_tryget()
240 		if (!vga_conflicts(vgadev->pdev, conflict->pdev))  in __vga_tryget()
249 		if (vgadev->pdev->bus != conflict->pdev->bus) {  in __vga_tryget()
312 	if (!vgadev->bridge_has_one_vga) {  in __vga_tryget()
322 	pci_set_vga_state(vgadev->pdev, true, pci_bits, flags);  in __vga_tryget()
324 	if (!vgadev->bridge_has_one_vga)  in __vga_tryget()
325 		vga_irq_set_state(vgadev, true);  in __vga_tryget()
327 	vgadev->owns |= wants;  in __vga_tryget()
329 	vgadev->locks |= (rsrc & VGA_RSRC_LEGACY_MASK);  in __vga_tryget()
331 		vgadev->io_lock_cnt++;  in __vga_tryget()
333 		vgadev->mem_lock_cnt++;  in __vga_tryget()
335 		vgadev->io_norm_cnt++;  in __vga_tryget()
337 		vgadev->mem_norm_cnt++;  in __vga_tryget()
342 static void __vga_put(struct vga_device *vgadev, unsigned int rsrc)  in __vga_put()  argument
344 	struct device *dev = &vgadev->pdev->dev;  in __vga_put()
345 	unsigned int old_locks = vgadev->locks;  in __vga_put()
352 	if ((rsrc & VGA_RSRC_NORMAL_IO) && vgadev->io_norm_cnt > 0) {  in __vga_put()
353 		vgadev->io_norm_cnt--;  in __vga_put()
354 		if (vgadev->decodes & VGA_RSRC_LEGACY_IO)  in __vga_put()
357 	if ((rsrc & VGA_RSRC_NORMAL_MEM) && vgadev->mem_norm_cnt > 0) {  in __vga_put()
358 		vgadev->mem_norm_cnt--;  in __vga_put()
359 		if (vgadev->decodes & VGA_RSRC_LEGACY_MEM)  in __vga_put()
362 	if ((rsrc & VGA_RSRC_LEGACY_IO) && vgadev->io_lock_cnt > 0)  in __vga_put()
363 		vgadev->io_lock_cnt--;  in __vga_put()
364 	if ((rsrc & VGA_RSRC_LEGACY_MEM) && vgadev->mem_lock_cnt > 0)  in __vga_put()
365 		vgadev->mem_lock_cnt--;  in __vga_put()
370 	if (vgadev->io_lock_cnt == 0)  in __vga_put()
371 		vgadev->locks &= ~VGA_RSRC_LEGACY_IO;  in __vga_put()
372 	if (vgadev->mem_lock_cnt == 0)  in __vga_put()
373 		vgadev->locks &= ~VGA_RSRC_LEGACY_MEM;  in __vga_put()
378 	if (old_locks != vgadev->locks)  in __vga_put()
418 	struct vga_device *vgadev, *conflict;  in vga_get()  local
432 		vgadev = vgadev_find(pdev);  in vga_get()
433 		if (vgadev == NULL) {  in vga_get()
438 		conflict = __vga_tryget(vgadev, rsrc);  in vga_get()
485 	struct vga_device *vgadev;  in vga_tryget()  local
497 	vgadev = vgadev_find(pdev);  in vga_tryget()
498 	if (vgadev == NULL) {  in vga_tryget()
502 	if (__vga_tryget(vgadev, rsrc))  in vga_tryget()
522 	struct vga_device *vgadev;  in vga_put()  local
531 	vgadev = vgadev_find(pdev);  in vga_put()
532 	if (vgadev == NULL)  in vga_put()
534 	__vga_put(vgadev, rsrc);  in vga_put()
549 static void vga_arbiter_check_bridge_sharing(struct vga_device *vgadev)  in vga_arbiter_check_bridge_sharing()  argument
555 	vgadev->bridge_has_one_vga = true;  in vga_arbiter_check_bridge_sharing()
561 	new_bus = vgadev->pdev->bus;  in vga_arbiter_check_bridge_sharing()
589 				if (bridge && bridge == vgadev->pdev->bus->self)  in vga_arbiter_check_bridge_sharing()
590 					vgadev->bridge_has_one_vga = false;  in vga_arbiter_check_bridge_sharing()
607 	struct vga_device *vgadev;  in vga_arbiter_add_pci_device()  local
618 	vgadev = kzalloc(sizeof(struct vga_device), GFP_KERNEL);  in vga_arbiter_add_pci_device()
619 	if (vgadev == NULL) {  in vga_arbiter_add_pci_device()
634 	vgadev->pdev = pdev;  in vga_arbiter_add_pci_device()
637 	vgadev->decodes = VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |  in vga_arbiter_add_pci_device()
647 		vgadev->owns |= VGA_RSRC_LEGACY_IO;  in vga_arbiter_add_pci_device()
649 		vgadev->owns |= VGA_RSRC_LEGACY_MEM;  in vga_arbiter_add_pci_device()
660 				vgadev->owns = 0;  in vga_arbiter_add_pci_device()
671 	    ((vgadev->owns & VGA_RSRC_LEGACY_MASK) == VGA_RSRC_LEGACY_MASK)) {  in vga_arbiter_add_pci_device()
676 	vga_arbiter_check_bridge_sharing(vgadev);  in vga_arbiter_add_pci_device()
679 	list_add(&vgadev->list, &vga_list);  in vga_arbiter_add_pci_device()
682 		vga_iostate_to_str(vgadev->decodes),  in vga_arbiter_add_pci_device()
683 		vga_iostate_to_str(vgadev->owns),  in vga_arbiter_add_pci_device()
684 		vga_iostate_to_str(vgadev->locks));  in vga_arbiter_add_pci_device()
690 	kfree(vgadev);  in vga_arbiter_add_pci_device()
696 	struct vga_device *vgadev;  in vga_arbiter_del_pci_device()  local
701 	vgadev = vgadev_find(pdev);  in vga_arbiter_del_pci_device()
702 	if (vgadev == NULL) {  in vga_arbiter_del_pci_device()
710 	if (vgadev->decodes & (VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM))  in vga_arbiter_del_pci_device()
714 	list_del(&vgadev->list);  in vga_arbiter_del_pci_device()
725 	kfree(vgadev);  in vga_arbiter_del_pci_device()
730 static inline void vga_update_device_decodes(struct vga_device *vgadev,  in vga_update_device_decodes()  argument
733 	struct device *dev = &vgadev->pdev->dev;  in vga_update_device_decodes()
736 	old_decodes = vgadev->decodes;  in vga_update_device_decodes()
738 	decodes_unlocked = vgadev->locks & decodes_removed;  in vga_update_device_decodes()
739 	vgadev->decodes = new_decodes;  in vga_update_device_decodes()
743 		vga_iostate_to_str(vgadev->decodes),  in vga_update_device_decodes()
744 		vga_iostate_to_str(vgadev->owns));  in vga_update_device_decodes()
749 			vgadev->io_lock_cnt = 0;  in vga_update_device_decodes()
751 			vgadev->mem_lock_cnt = 0;  in vga_update_device_decodes()
752 		__vga_put(vgadev, decodes_unlocked);  in vga_update_device_decodes()
769 	struct vga_device *vgadev;  in __vga_set_legacy_decoding()  local
775 	vgadev = vgadev_find(pdev);  in __vga_set_legacy_decoding()
776 	if (vgadev == NULL)  in __vga_set_legacy_decoding()
780 	if (userspace && vgadev->set_vga_decode)  in __vga_set_legacy_decoding()
784 	vga_update_device_decodes(vgadev, decodes);  in __vga_set_legacy_decoding()
837 	struct vga_device *vgadev;  in vga_client_register()  local
841 	vgadev = vgadev_find(pdev);  in vga_client_register()
842 	if (!vgadev)  in vga_client_register()
845 	vgadev->irq_set_state = irq_set_state;  in vga_client_register()
846 	vgadev->set_vga_decode = set_vga_decode;  in vga_client_register()
847 	vgadev->cookie = cookie;  in vga_client_register()
958 	struct vga_device *vgadev;  in vga_arb_read()  local
983 	vgadev = vgadev_find(pdev);  in vga_arb_read()
984 	if (vgadev == NULL) {  in vga_arb_read()
999 		       vga_iostate_to_str(vgadev->decodes),  in vga_arb_read()
1000 		       vga_iostate_to_str(vgadev->owns),  in vga_arb_read()
1001 		       vga_iostate_to_str(vgadev->locks),  in vga_arb_read()
1002 		       vgadev->io_lock_cnt, vgadev->mem_lock_cnt);  in vga_arb_read()
1178 		struct vga_device *vgadev;  in vga_arb_write()  local
1206 		vgadev = vgadev_find(pdev);  in vga_arb_write()
1207 		pr_debug("vgadev %p\n", vgadev);  in vga_arb_write()
1208 		if (vgadev == NULL) {  in vga_arb_write()
1343 	struct vga_device *vgadev;  in vga_arbiter_notify_clients()  local
1352 	list_for_each_entry(vgadev, &vga_list, list) {  in vga_arbiter_notify_clients()
1357 		if (vgadev->set_vga_decode) {  in vga_arbiter_notify_clients()
1358 			new_decodes = vgadev->set_vga_decode(vgadev->cookie,  in vga_arbiter_notify_clients()
1360 			vga_update_device_decodes(vgadev, new_decodes);  in vga_arbiter_notify_clients()
1408 	struct vga_device *vgadev;  in vga_arb_select_default_device()  local
1411 	list_for_each_entry(vgadev, &vga_list, list) {  in vga_arb_select_default_device()
1412 		struct device *dev = &vgadev->pdev->dev;  in vga_arb_select_default_device()
1429 			flags = pci_resource_flags(vgadev->pdev, i);  in vga_arb_select_default_device()
1434 			start = pci_resource_start(vgadev->pdev, i);  in vga_arb_select_default_device()
1435 			end  = pci_resource_end(vgadev->pdev, i);  in vga_arb_select_default_device()
1445 			else if (vgadev->pdev != vga_default_device())  in vga_arb_select_default_device()
1447 			vga_set_default_device(vgadev->pdev);  in vga_arb_select_default_device()
1453 		list_for_each_entry(vgadev, &vga_list, list) {  in vga_arb_select_default_device()
1454 			struct device *dev = &vgadev->pdev->dev;  in vga_arb_select_default_device()
1457 			pdev = vgadev->pdev;  in vga_arb_select_default_device()
1468 		vgadev = list_first_entry_or_null(&vga_list,  in vga_arb_select_default_device()
1470 		if (vgadev) {  in vga_arb_select_default_device()
1471 			struct device *dev = &vgadev->pdev->dev;  in vga_arb_select_default_device()
1473 			vga_set_default_device(vgadev->pdev);  in vga_arb_select_default_device()
1482 	struct vga_device *vgadev;  in vga_arb_device_init()  local
1498 	list_for_each_entry(vgadev, &vga_list, list) {  in vga_arb_device_init()
1499 		struct device *dev = &vgadev->pdev->dev;  in vga_arb_device_init()
1501 		if (vgadev->bridge_has_one_vga)  in vga_arb_device_init()