1 /* $NetBSD: nouveau_core_subdev.c,v 1.3 2016/04/13 07:59:05 riastradh Exp $ */
2
3 /*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26
27 #include <sys/cdefs.h>
28 __KERNEL_RCSID(0, "$NetBSD: nouveau_core_subdev.c,v 1.3 2016/04/13 07:59:05 riastradh Exp $");
29
30 #include <core/object.h>
31 #include <core/subdev.h>
32 #include <core/device.h>
33 #include <core/option.h>
34
35 void
nouveau_subdev_reset(struct nouveau_object * subdev)36 nouveau_subdev_reset(struct nouveau_object *subdev)
37 {
38 nv_trace(subdev, "resetting...\n");
39 nv_ofuncs(subdev)->fini(subdev, false);
40 nv_debug(subdev, "reset\n");
41 }
42
43 int
nouveau_subdev_init(struct nouveau_subdev * subdev)44 nouveau_subdev_init(struct nouveau_subdev *subdev)
45 {
46 int ret = nouveau_object_init(&subdev->base);
47 if (ret)
48 return ret;
49
50 nouveau_subdev_reset(&subdev->base);
51 return 0;
52 }
53
54 int
_nouveau_subdev_init(struct nouveau_object * object)55 _nouveau_subdev_init(struct nouveau_object *object)
56 {
57 return nouveau_subdev_init(nv_subdev(object));
58 }
59
60 int
nouveau_subdev_fini(struct nouveau_subdev * subdev,bool suspend)61 nouveau_subdev_fini(struct nouveau_subdev *subdev, bool suspend)
62 {
63 if (subdev->unit) {
64 nv_mask(subdev, 0x000200, subdev->unit, 0x00000000);
65 nv_mask(subdev, 0x000200, subdev->unit, subdev->unit);
66 }
67
68 return nouveau_object_fini(&subdev->base, suspend);
69 }
70
71 int
_nouveau_subdev_fini(struct nouveau_object * object,bool suspend)72 _nouveau_subdev_fini(struct nouveau_object *object, bool suspend)
73 {
74 return nouveau_subdev_fini(nv_subdev(object), suspend);
75 }
76
77 void
nouveau_subdev_destroy(struct nouveau_subdev * subdev)78 nouveau_subdev_destroy(struct nouveau_subdev *subdev)
79 {
80 int subidx = nv_hclass(subdev) & 0xff;
81 nv_device(subdev)->subdev[subidx] = NULL;
82 linux_mutex_destroy(&subdev->mutex);
83 nouveau_object_destroy(&subdev->base);
84 }
85
86 void
_nouveau_subdev_dtor(struct nouveau_object * object)87 _nouveau_subdev_dtor(struct nouveau_object *object)
88 {
89 nouveau_subdev_destroy(nv_subdev(object));
90 }
91
92 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)93 nouveau_subdev_create_(struct nouveau_object *parent,
94 struct nouveau_object *engine,
95 struct nouveau_oclass *oclass, u32 pclass,
96 const char *subname, const char *sysname,
97 int size, void **pobject)
98 {
99 struct nouveau_subdev *subdev;
100 int ret;
101
102 ret = nouveau_object_create_(parent, engine, oclass, pclass |
103 NV_SUBDEV_CLASS, size, pobject);
104 subdev = *pobject;
105 if (ret)
106 return ret;
107
108 __mutex_init(&subdev->mutex, subname, &oclass->lock_class_key);
109 subdev->name = subname;
110
111 if (parent) {
112 struct nouveau_device *device = nv_device(parent);
113 subdev->debug = nouveau_dbgopt(device->dbgopt, subname);
114 #ifdef __NetBSD__
115 subdev->mmiot = nv_subdev(device)->mmiot;
116 subdev->mmioh = nv_subdev(device)->mmioh;
117 subdev->mmiosz = nv_subdev(device)->mmiosz;
118 #else
119 subdev->mmio = nv_subdev(device)->mmio;
120 #endif
121 }
122
123 return 0;
124 }
125