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8f27c543 BS |
1 | /* |
2 | * Copyright 2011 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 | ||
760285e7 | 25 | #include <drm/drmP.h> |
8f27c543 BS |
26 | #include "nouveau_drv.h" |
27 | #include "nouveau_util.h" | |
28 | #include "nouveau_vm.h" | |
29 | #include "nouveau_ramht.h" | |
30 | ||
31 | struct nv98_ppp_engine { | |
32 | struct nouveau_exec_engine base; | |
33 | }; | |
34 | ||
35 | static int | |
36 | nv98_ppp_fini(struct drm_device *dev, int engine, bool suspend) | |
37 | { | |
38 | if (!(nv_rd32(dev, 0x000200) & 0x00000002)) | |
39 | return 0; | |
40 | ||
41 | nv_mask(dev, 0x000200, 0x00000002, 0x00000000); | |
42 | return 0; | |
43 | } | |
44 | ||
45 | static int | |
46 | nv98_ppp_init(struct drm_device *dev, int engine) | |
47 | { | |
48 | nv_mask(dev, 0x000200, 0x00000002, 0x00000000); | |
49 | nv_mask(dev, 0x000200, 0x00000002, 0x00000002); | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static void | |
54 | nv98_ppp_destroy(struct drm_device *dev, int engine) | |
55 | { | |
56 | struct nv98_ppp_engine *pppp = nv_engine(dev, engine); | |
57 | ||
58 | NVOBJ_ENGINE_DEL(dev, PPP); | |
59 | ||
60 | kfree(pppp); | |
61 | } | |
62 | ||
63 | int | |
64 | nv98_ppp_create(struct drm_device *dev) | |
65 | { | |
66 | struct nv98_ppp_engine *pppp; | |
67 | ||
68 | pppp = kzalloc(sizeof(*pppp), GFP_KERNEL); | |
69 | if (!pppp) | |
70 | return -ENOMEM; | |
71 | ||
72 | pppp->base.destroy = nv98_ppp_destroy; | |
73 | pppp->base.init = nv98_ppp_init; | |
74 | pppp->base.fini = nv98_ppp_fini; | |
75 | ||
76 | NVOBJ_ENGINE_ADD(dev, PPP, &pppp->base); | |
77 | return 0; | |
78 | } |