subdev.c revision 5f97ab913cf0fbc378ea8ffc3ee66f4890d11c55 
1/*
2 * Copyright 2012 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
23 */
24
25#include <core/object.h>
26#include <core/subdev.h>
27#include <core/device.h>
28#include <core/option.h>
29
30void
31nouveau_subdev_reset(struct nouveau_object *subdev)
32{
33	nv_trace(subdev, "resetting...\n");
34	nv_ofuncs(subdev)->fini(subdev, false);
35	nv_debug(subdev, "reset\n");
36}
37
38int
39nouveau_subdev_init(struct nouveau_subdev *subdev)
40{
41	int ret = nouveau_object_init(&subdev->base);
42	if (ret)
43		return ret;
44
45	nouveau_subdev_reset(&subdev->base);
46	return 0;
47}
48
49int
50_nouveau_subdev_init(struct nouveau_object *object)
51{
52	return nouveau_subdev_init(nv_subdev(object));
53}
54
55int
56nouveau_subdev_fini(struct nouveau_subdev *subdev, bool suspend)
57{
58	if (subdev->unit) {
59		nv_mask(subdev, 0x000200, subdev->unit, 0x00000000);
60		nv_mask(subdev, 0x000200, subdev->unit, subdev->unit);
61	}
62
63	return nouveau_object_fini(&subdev->base, suspend);
64}
65
66int
67_nouveau_subdev_fini(struct nouveau_object *object, bool suspend)
68{
69	return nouveau_subdev_fini(nv_subdev(object), suspend);
70}
71
72void
73nouveau_subdev_destroy(struct nouveau_subdev *subdev)
74{
75	int subidx = nv_hclass(subdev) & 0xff;
76	nv_device(subdev)->subdev[subidx] = NULL;
77	nouveau_object_destroy(&subdev->base);
78}
79
80void
81_nouveau_subdev_dtor(struct nouveau_object *object)
82{
83	nouveau_subdev_destroy(nv_subdev(object));
84}
85
86int
87nouveau_subdev_create_(struct nouveau_object *parent,
88		       struct nouveau_object *engine,
89		       struct nouveau_oclass *oclass, u32 pclass,
90		       const char *subname, const char *sysname,
91		       int size, void **pobject)
92{
93	struct nouveau_subdev *subdev;
94	int ret;
95
96	ret = nouveau_object_create_(parent, engine, oclass, pclass |
97				     NV_SUBDEV_CLASS, size, pobject);
98	subdev = *pobject;
99	if (ret)
100		return ret;
101
102	__mutex_init(&subdev->mutex, subname, &oclass->lock_class_key);
103	subdev->name = subname;
104
105	if (parent) {
106		struct nouveau_device *device = nv_device(parent);
107		int subidx = nv_hclass(subdev) & 0xff;
108
109		subdev->debug = nouveau_dbgopt(device->dbgopt, subname);
110		subdev->mmio  = nv_subdev(device)->mmio;
111		device->subdev[subidx] = *pobject;
112	}
113
114	return 0;
115}
116