81 	struct hv_uio_private_data *pdata = info->priv;  in hv_uio_irqcontrol()  local
82 	struct hv_device *dev = pdata->device;  in hv_uio_irqcontrol()
97 	struct hv_uio_private_data *pdata = hv_get_drvdata(hv_dev);  in hv_uio_channel_cb()  local
102 	uio_event_notify(&pdata->info);  in hv_uio_channel_cb()
111 	struct hv_uio_private_data *pdata = hv_get_drvdata(hv_dev);  in hv_uio_rescind()  local
117 	pdata->info.irq = 0;  in hv_uio_rescind()
120 	uio_event_notify(&pdata->info);  in hv_uio_rescind()
180 hv_uio_cleanup(struct hv_device *dev, struct hv_uio_private_data *pdata)  in hv_uio_cleanup()  argument
182 	if (pdata->send_gpadl.gpadl_handle) {  in hv_uio_cleanup()
183 		vmbus_teardown_gpadl(dev->channel, &pdata->send_gpadl);  in hv_uio_cleanup()
184 		vfree(pdata->send_buf);  in hv_uio_cleanup()
187 	if (pdata->recv_gpadl.gpadl_handle) {  in hv_uio_cleanup()
188 		vmbus_teardown_gpadl(dev->channel, &pdata->recv_gpadl);  in hv_uio_cleanup()
189 		vfree(pdata->recv_buf);  in hv_uio_cleanup()
197 	struct hv_uio_private_data *pdata  in hv_uio_open()  local
199 	struct hv_device *dev = pdata->device;  in hv_uio_open()
202 	if (atomic_inc_return(&pdata->refcnt) != 1)  in hv_uio_open()
213 		atomic_dec(&pdata->refcnt);  in hv_uio_open()
222 	struct hv_uio_private_data *pdata  in hv_uio_release()  local
224 	struct hv_device *dev = pdata->device;  in hv_uio_release()
227 	if (atomic_dec_and_test(&pdata->refcnt))  in hv_uio_release()
238 	struct hv_uio_private_data *pdata;  in hv_uio_probe()  local
248 	pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL);  in hv_uio_probe()
249 	if (!pdata)  in hv_uio_probe()
260 	pdata->info.name = "uio_hv_generic";  in hv_uio_probe()
261 	pdata->info.version = DRIVER_VERSION;  in hv_uio_probe()
262 	pdata->info.irqcontrol = hv_uio_irqcontrol;  in hv_uio_probe()
263 	pdata->info.open = hv_uio_open;  in hv_uio_probe()
264 	pdata->info.release = hv_uio_release;  in hv_uio_probe()
265 	pdata->info.irq = UIO_IRQ_CUSTOM;  in hv_uio_probe()
266 	atomic_set(&pdata->refcnt, 0);  in hv_uio_probe()
269 	pdata->info.mem[TXRX_RING_MAP].name = "txrx_rings";  in hv_uio_probe()
271 	pdata->info.mem[TXRX_RING_MAP].addr  in hv_uio_probe()
273 	pdata->info.mem[TXRX_RING_MAP].size  in hv_uio_probe()
275 	pdata->info.mem[TXRX_RING_MAP].memtype = UIO_MEM_IOVA;  in hv_uio_probe()
277 	pdata->info.mem[INT_PAGE_MAP].name = "int_page";  in hv_uio_probe()
278 	pdata->info.mem[INT_PAGE_MAP].addr  in hv_uio_probe()
280 	pdata->info.mem[INT_PAGE_MAP].size = PAGE_SIZE;  in hv_uio_probe()
281 	pdata->info.mem[INT_PAGE_MAP].memtype = UIO_MEM_LOGICAL;  in hv_uio_probe()
283 	pdata->info.mem[MON_PAGE_MAP].name = "monitor_page";  in hv_uio_probe()
284 	pdata->info.mem[MON_PAGE_MAP].addr  in hv_uio_probe()
286 	pdata->info.mem[MON_PAGE_MAP].size = PAGE_SIZE;  in hv_uio_probe()
287 	pdata->info.mem[MON_PAGE_MAP].memtype = UIO_MEM_LOGICAL;  in hv_uio_probe()
289 	pdata->recv_buf = vzalloc(RECV_BUFFER_SIZE);  in hv_uio_probe()
290 	if (pdata->recv_buf == NULL) {  in hv_uio_probe()
295 	ret = vmbus_establish_gpadl(channel, pdata->recv_buf,  in hv_uio_probe()
296 				    RECV_BUFFER_SIZE, &pdata->recv_gpadl);  in hv_uio_probe()
298 		vfree(pdata->recv_buf);  in hv_uio_probe()
303 	snprintf(pdata->recv_name, sizeof(pdata->recv_name),  in hv_uio_probe()
304 		 "recv:%u", pdata->recv_gpadl.gpadl_handle);  in hv_uio_probe()
305 	pdata->info.mem[RECV_BUF_MAP].name = pdata->recv_name;  in hv_uio_probe()
306 	pdata->info.mem[RECV_BUF_MAP].addr  in hv_uio_probe()
307 		= (uintptr_t)pdata->recv_buf;  in hv_uio_probe()
308 	pdata->info.mem[RECV_BUF_MAP].size = RECV_BUFFER_SIZE;  in hv_uio_probe()
309 	pdata->info.mem[RECV_BUF_MAP].memtype = UIO_MEM_VIRTUAL;  in hv_uio_probe()
311 	pdata->send_buf = vzalloc(SEND_BUFFER_SIZE);  in hv_uio_probe()
312 	if (pdata->send_buf == NULL) {  in hv_uio_probe()
317 	ret = vmbus_establish_gpadl(channel, pdata->send_buf,  in hv_uio_probe()
318 				    SEND_BUFFER_SIZE, &pdata->send_gpadl);  in hv_uio_probe()
320 		vfree(pdata->send_buf);  in hv_uio_probe()
324 	snprintf(pdata->send_name, sizeof(pdata->send_name),  in hv_uio_probe()
325 		 "send:%u", pdata->send_gpadl.gpadl_handle);  in hv_uio_probe()
326 	pdata->info.mem[SEND_BUF_MAP].name = pdata->send_name;  in hv_uio_probe()
327 	pdata->info.mem[SEND_BUF_MAP].addr  in hv_uio_probe()
328 		= (uintptr_t)pdata->send_buf;  in hv_uio_probe()
329 	pdata->info.mem[SEND_BUF_MAP].size = SEND_BUFFER_SIZE;  in hv_uio_probe()
330 	pdata->info.mem[SEND_BUF_MAP].memtype = UIO_MEM_VIRTUAL;  in hv_uio_probe()
332 	pdata->info.priv = pdata;  in hv_uio_probe()
333 	pdata->device = dev;  in hv_uio_probe()
335 	ret = uio_register_device(&dev->device, &pdata->info);  in hv_uio_probe()
346 	hv_set_drvdata(dev, pdata);  in hv_uio_probe()
351 	hv_uio_cleanup(dev, pdata);  in hv_uio_probe()
361 	struct hv_uio_private_data *pdata = hv_get_drvdata(dev);  in hv_uio_remove()  local
363 	if (!pdata)  in hv_uio_remove()
367 	uio_unregister_device(&pdata->info);  in hv_uio_remove()
368 	hv_uio_cleanup(dev, pdata);  in hv_uio_remove()