1 | /* $NetBSD: nouveau_core_engine.c,v 1.1.1.1 2014/08/06 12:36:23 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_engine.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $" ); |
29 | |
30 | #include <core/device.h> |
31 | #include <core/engine.h> |
32 | #include <core/option.h> |
33 | |
34 | int |
35 | nouveau_engine_create_(struct nouveau_object *parent, |
36 | struct nouveau_object *engobj, |
37 | struct nouveau_oclass *oclass, bool enable, |
38 | const char *iname, const char *fname, |
39 | int length, void **pobject) |
40 | { |
41 | struct nouveau_engine *engine; |
42 | int ret; |
43 | |
44 | ret = nouveau_subdev_create_(parent, engobj, oclass, NV_ENGINE_CLASS, |
45 | iname, fname, length, pobject); |
46 | engine = *pobject; |
47 | if (ret) |
48 | return ret; |
49 | |
50 | if (parent) { |
51 | struct nouveau_device *device = nv_device(parent); |
52 | int engidx = nv_engidx(nv_object(engine)); |
53 | |
54 | if (device->disable_mask & (1ULL << engidx)) { |
55 | if (!nouveau_boolopt(device->cfgopt, iname, false)) { |
56 | nv_debug(engine, "engine disabled by hw/fw\n" ); |
57 | return -ENODEV; |
58 | } |
59 | |
60 | nv_warn(engine, "ignoring hw/fw engine disable\n" ); |
61 | } |
62 | |
63 | if (!nouveau_boolopt(device->cfgopt, iname, enable)) { |
64 | if (!enable) |
65 | nv_warn(engine, "disabled, %s=1 to enable\n" , iname); |
66 | return -ENODEV; |
67 | } |
68 | } |
69 | |
70 | INIT_LIST_HEAD(&engine->contexts); |
71 | spin_lock_init(&engine->lock); |
72 | return 0; |
73 | } |
74 | |