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
30 void
nouveau_subdev_reset(struct nouveau_object * subdev)31 nouveau_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
38 int
nouveau_subdev_init(struct nouveau_subdev * subdev)39 nouveau_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
49 int
_nouveau_subdev_init(struct nouveau_object * object)50 _nouveau_subdev_init(struct nouveau_object *object)
51 {
52 return nouveau_subdev_init(nv_subdev(object));
53 }
54
55 int
nouveau_subdev_fini(struct nouveau_subdev * subdev,bool suspend)56 nouveau_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
66 int
_nouveau_subdev_fini(struct nouveau_object * object,bool suspend)67 _nouveau_subdev_fini(struct nouveau_object *object, bool suspend)
68 {
69 return nouveau_subdev_fini(nv_subdev(object), suspend);
70 }
71
72 void
nouveau_subdev_destroy(struct nouveau_subdev * subdev)73 nouveau_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
80 void
_nouveau_subdev_dtor(struct nouveau_object * object)81 _nouveau_subdev_dtor(struct nouveau_object *object)
82 {
83 nouveau_subdev_destroy(nv_subdev(object));
84 }
85
86 int
nouveau_subdev_create_(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,u32 pclass,const char * subname,const char * sysname,int size,void ** pobject)87 nouveau_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 subdev->debug = nouveau_dbgopt(device->dbgopt, subname);
108 subdev->mmio = nv_subdev(device)->mmio;
109 }
110
111 return 0;
112 }
113