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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 | */ | |
9274f4a9 BS |
24 | #include <core/subdev.h> |
25 | #include <core/device.h> | |
26 | #include <core/option.h> | |
27 | ||
5025407b BS |
28 | struct nvkm_subdev * |
29 | nvkm_subdev(void *obj, int idx) | |
a38f37a7 | 30 | { |
5025407b | 31 | struct nvkm_object *object = nv_object(obj); |
490d595f BS |
32 | while (object && !nv_iclass(object, NV_SUBDEV_CLASS)) |
33 | object = object->parent; | |
a1e88736 | 34 | if (object == NULL || !object->parent || nv_subidx(nv_subdev(object)) != idx) |
490d595f BS |
35 | object = nv_device(obj)->subdev[idx]; |
36 | return object ? nv_subdev(object) : NULL; | |
a38f37a7 BS |
37 | } |
38 | ||
9274f4a9 | 39 | void |
53003941 | 40 | nvkm_subdev_reset(struct nvkm_object *obj) |
9274f4a9 | 41 | { |
53003941 BS |
42 | struct nvkm_subdev *subdev = container_of(obj, typeof(*subdev), object); |
43 | nvkm_trace(subdev, "resetting...\n"); | |
44 | nv_ofuncs(subdev)->fini(&subdev->object, false); | |
45 | nvkm_trace(subdev, "reset\n"); | |
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46 | } |
47 | ||
48 | int | |
5025407b | 49 | nvkm_subdev_init(struct nvkm_subdev *subdev) |
9274f4a9 | 50 | { |
5025407b | 51 | int ret = nvkm_object_init(&subdev->object); |
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52 | if (ret) |
53 | return ret; | |
54 | ||
5025407b | 55 | nvkm_subdev_reset(&subdev->object); |
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56 | return 0; |
57 | } | |
58 | ||
59 | int | |
5025407b | 60 | _nvkm_subdev_init(struct nvkm_object *object) |
9274f4a9 | 61 | { |
5025407b | 62 | return nvkm_subdev_init(nv_subdev(object)); |
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63 | } |
64 | ||
65 | int | |
5025407b | 66 | nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend) |
9274f4a9 | 67 | { |
94bab102 BS |
68 | struct nvkm_device *device = subdev->device; |
69 | ||
9274f4a9 | 70 | if (subdev->unit) { |
94bab102 BS |
71 | nvkm_mask(device, 0x000200, subdev->unit, 0x00000000); |
72 | nvkm_mask(device, 0x000200, subdev->unit, subdev->unit); | |
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73 | } |
74 | ||
5025407b | 75 | return nvkm_object_fini(&subdev->object, suspend); |
9274f4a9 BS |
76 | } |
77 | ||
78 | int | |
5025407b | 79 | _nvkm_subdev_fini(struct nvkm_object *object, bool suspend) |
9274f4a9 | 80 | { |
5025407b | 81 | return nvkm_subdev_fini(nv_subdev(object), suspend); |
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82 | } |
83 | ||
84 | void | |
5025407b | 85 | nvkm_subdev_destroy(struct nvkm_subdev *subdev) |
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86 | { |
87 | int subidx = nv_hclass(subdev) & 0xff; | |
88 | nv_device(subdev)->subdev[subidx] = NULL; | |
5025407b | 89 | nvkm_object_destroy(&subdev->object); |
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90 | } |
91 | ||
92 | void | |
5025407b | 93 | _nvkm_subdev_dtor(struct nvkm_object *object) |
9274f4a9 | 94 | { |
5025407b | 95 | nvkm_subdev_destroy(nv_subdev(object)); |
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96 | } |
97 | ||
98 | int | |
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99 | nvkm_subdev_create_(struct nvkm_object *parent, struct nvkm_object *engine, |
100 | struct nvkm_oclass *oclass, u32 pclass, | |
101 | const char *subname, const char *sysname, | |
102 | int size, void **pobject) | |
9274f4a9 | 103 | { |
5025407b | 104 | struct nvkm_subdev *subdev; |
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105 | int ret; |
106 | ||
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107 | ret = nvkm_object_create_(parent, engine, oclass, pclass | |
108 | NV_SUBDEV_CLASS, size, pobject); | |
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109 | subdev = *pobject; |
110 | if (ret) | |
111 | return ret; | |
112 | ||
5f97ab91 | 113 | __mutex_init(&subdev->mutex, subname, &oclass->lock_class_key); |
9274f4a9 | 114 | subdev->name = subname; |
6594363b | 115 | subdev->sname = sysname; |
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116 | |
117 | if (parent) { | |
5025407b BS |
118 | struct nvkm_device *device = nv_device(parent); |
119 | subdev->debug = nvkm_dbgopt(device->dbgopt, subname); | |
d351b856 BS |
120 | subdev->device = device; |
121 | } else { | |
122 | subdev->device = nv_device(subdev); | |
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123 | } |
124 | ||
125 | return 0; | |
126 | } |