1 /*
2 * Copyright 2014 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24 #include <nvif/device.h>
25 #include <nvif/client.h>
26
27 u64
nvif_device_time(struct nvif_device * device)28 nvif_device_time(struct nvif_device *device)
29 {
30 if (!device->user.func) {
31 struct nv_device_time_v0 args = {};
32 int ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_TIME,
33 &args, sizeof(args));
34 WARN_ON_ONCE(ret != 0);
35 return args.time;
36 }
37
38 return device->user.func->time(&device->user);
39 }
40
41 int
nvif_device_map(struct nvif_device * device)42 nvif_device_map(struct nvif_device *device)
43 {
44 return nvif_object_map(&device->object, NULL, 0);
45 }
46
47 void
nvif_device_dtor(struct nvif_device * device)48 nvif_device_dtor(struct nvif_device *device)
49 {
50 nvif_user_dtor(device);
51 kfree(device->runlist);
52 device->runlist = NULL;
53 nvif_object_dtor(&device->object);
54 }
55
56 int
nvif_device_ctor(struct nvif_client * client,const char * name,struct nvif_device * device)57 nvif_device_ctor(struct nvif_client *client, const char *name, struct nvif_device *device)
58 {
59 int ret = nvif_object_ctor(&client->object, name ? name : "nvifDevice", 0,
60 0x0080, NULL, 0, &device->object);
61 device->runlist = NULL;
62 device->user.func = NULL;
63 if (ret == 0) {
64 device->info.version = 0;
65 ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_INFO,
66 &device->info, sizeof(device->info));
67 }
68 return ret;
69 }
70