Blame view

kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvif/device.c 1.86 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
  /*
   * Copyright 2014 Red Hat Inc.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   * OTHER DEALINGS IN THE SOFTWARE.
   *
   * Authors: Ben Skeggs <bskeggs@redhat.com>
   */
  
  #include <nvif/device.h>
  
  u64
  nvif_device_time(struct nvif_device *device)
  {
  	struct nv_device_time_v0 args = {};
  	int ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_TIME,
  				   &args, sizeof(args));
  	WARN_ON_ONCE(ret != 0);
  	return args.time;
  }
  
  void
  nvif_device_fini(struct nvif_device *device)
  {
  	nvif_object_fini(&device->object);
  }
  
  int
  nvif_device_init(struct nvif_object *parent, u32 handle, s32 oclass,
  		 void *data, u32 size, struct nvif_device *device)
  {
  	int ret = nvif_object_init(parent, handle, oclass, data, size,
  				   &device->object);
  	if (ret == 0) {
  		device->info.version = 0;
  		ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_INFO,
  				       &device->info, sizeof(device->info));
  	}
  	return ret;
  }