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 
25 #include <nvif/device.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 void
nvif_device_dtor(struct nvif_device * device)42 nvif_device_dtor(struct nvif_device *device)
43 {
44 	nvif_user_dtor(device);
45 	kfree(device->runlist);
46 	device->runlist = NULL;
47 	nvif_object_dtor(&device->object);
48 }
49 
50 int
nvif_device_ctor(struct nvif_object * parent,const char * name,u32 handle,s32 oclass,void * data,u32 size,struct nvif_device * device)51 nvif_device_ctor(struct nvif_object *parent, const char *name, u32 handle,
52 		 s32 oclass, void *data, u32 size, struct nvif_device *device)
53 {
54 	int ret = nvif_object_ctor(parent, name ? name : "nvifDevice", handle,
55 				   oclass, data, size, &device->object);
56 	device->runlist = NULL;
57 	device->user.func = NULL;
58 	if (ret == 0) {
59 		device->info.version = 0;
60 		ret = nvif_object_mthd(&device->object, NV_DEVICE_V0_INFO,
61 				       &device->info, sizeof(device->info));
62 	}
63 	return ret;
64 }
65