33 get_vm_block(struct ct_vm *vm, unsigned int size, struct ct_atc *atc)  in get_vm_block()  argument
39 	if (size > vm->size) {  in get_vm_block()
45 	mutex_lock(&vm->lock);  in get_vm_block()
46 	list_for_each(pos, &vm->unused) {  in get_vm_block()
51 	if (pos == &vm->unused)  in get_vm_block()
56 		list_move(&entry->list, &vm->used);  in get_vm_block()
57 		vm->size -= size;  in get_vm_block()
68 	list_add(&block->list, &vm->used);  in get_vm_block()
71 	vm->size -= size;  in get_vm_block()
74 	mutex_unlock(&vm->lock);  in get_vm_block()
78 static void put_vm_block(struct ct_vm *vm, struct ct_vm_block *block)  in put_vm_block()  argument
85 	mutex_lock(&vm->lock);  in put_vm_block()
87 	vm->size += block->size;  in put_vm_block()
89 	list_for_each(pos, &vm->unused) {  in put_vm_block()
94 	if (pos == &vm->unused) {  in put_vm_block()
95 		list_add_tail(&block->list, &vm->unused);  in put_vm_block()
110 	while (pre != &vm->unused) {  in put_vm_block()
122 	mutex_unlock(&vm->lock);  in put_vm_block()
127 ct_vm_map(struct ct_vm *vm, struct snd_pcm_substream *substream, int size)  in ct_vm_map()  argument
135 	block = get_vm_block(vm, size, atc);  in ct_vm_map()
142 	ptp = (unsigned long *)vm->ptp[0].area;  in ct_vm_map()
155 static void ct_vm_unmap(struct ct_vm *vm, struct ct_vm_block *block)  in ct_vm_unmap()  argument
158 	put_vm_block(vm, block);  in ct_vm_unmap()
167 ct_get_ptp_phys(struct ct_vm *vm, int index)  in ct_get_ptp_phys()  argument
171 	addr = (index >= CT_PTP_NUM) ? ~0UL : vm->ptp[index].addr;  in ct_get_ptp_phys()
178 	struct ct_vm *vm;  in ct_vm_create()  local
184 	vm = kzalloc(sizeof(*vm), GFP_KERNEL);  in ct_vm_create()
185 	if (!vm)  in ct_vm_create()
188 	mutex_init(&vm->lock);  in ct_vm_create()
194 					  PAGE_SIZE, &vm->ptp[i]);  in ct_vm_create()
200 		ct_vm_destroy(vm);  in ct_vm_create()
203 	vm->size = CT_ADDRS_PER_PAGE * i;  in ct_vm_create()
204 	vm->map = ct_vm_map;  in ct_vm_create()
205 	vm->unmap = ct_vm_unmap;  in ct_vm_create()
206 	vm->get_ptp_phys = ct_get_ptp_phys;  in ct_vm_create()
207 	INIT_LIST_HEAD(&vm->unused);  in ct_vm_create()
208 	INIT_LIST_HEAD(&vm->used);  in ct_vm_create()
212 		block->size = vm->size;  in ct_vm_create()
213 		list_add(&block->list, &vm->unused);  in ct_vm_create()
216 	*rvm = vm;  in ct_vm_create()
222 void ct_vm_destroy(struct ct_vm *vm)  in ct_vm_destroy()  argument
229 	while (!list_empty(&vm->used)) {  in ct_vm_destroy()
230 		pos = vm->used.next;  in ct_vm_destroy()
235 	while (!list_empty(&vm->unused)) {  in ct_vm_destroy()
236 		pos = vm->unused.next;  in ct_vm_destroy()
244 		snd_dma_free_pages(&vm->ptp[i]);  in ct_vm_destroy()
246 	vm->size = 0;  in ct_vm_destroy()
248 	kfree(vm);  in ct_vm_destroy()