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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 | */ | |
24 | ||
25 | #include <core/device.h> | |
26 | #include <core/engine.h> | |
27 | #include <core/option.h> | |
28 | ||
29 | int | |
30 | nouveau_engine_create_(struct nouveau_object *parent, | |
31 | struct nouveau_object *engobj, | |
32 | struct nouveau_oclass *oclass, bool enable, | |
33 | const char *iname, const char *fname, | |
34 | int length, void **pobject) | |
35 | { | |
9274f4a9 BS |
36 | struct nouveau_engine *engine; |
37 | int ret; | |
38 | ||
39 | ret = nouveau_subdev_create_(parent, engobj, oclass, NV_ENGINE_CLASS, | |
40 | iname, fname, length, pobject); | |
41 | engine = *pobject; | |
42 | if (ret) | |
43 | return ret; | |
44 | ||
f0d13e3a IM |
45 | if (parent) { |
46 | struct nouveau_device *device = nv_device(parent); | |
47 | int engidx = nv_engidx(nv_object(engine)); | |
48 | ||
49 | if (device->disable_mask & (1ULL << engidx)) { | |
50 | if (!nouveau_boolopt(device->cfgopt, iname, false)) { | |
51 | nv_debug(engine, "engine disabled by hw/fw\n"); | |
52 | return -ENODEV; | |
53 | } | |
54 | ||
55 | nv_warn(engine, "ignoring hw/fw engine disable\n"); | |
56 | } | |
57 | ||
58 | if (!nouveau_boolopt(device->cfgopt, iname, enable)) { | |
59 | if (!enable) | |
60 | nv_warn(engine, "disabled, %s=1 to enable\n", iname); | |
61 | return -ENODEV; | |
62 | } | |
9274f4a9 BS |
63 | } |
64 | ||
65 | INIT_LIST_HEAD(&engine->contexts); | |
3acec63a | 66 | spin_lock_init(&engine->lock); |
9274f4a9 BS |
67 | return 0; |
68 | } |