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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 | ||
25 | #include "drmP.h" | |
26 | #include "nouveau_drv.h" | |
27 | #include "nouveau_util.h" | |
28 | #include "nouveau_vm.h" | |
29 | #include "nouveau_ramht.h" | |
30 | ||
31 | /*XXX: This stub is currently used on NV98+ also, as soon as this becomes | |
32 | * more than just an enable/disable stub this needs to be split out to | |
33 | * nv98_vp.c... | |
34 | */ | |
35 | ||
36 | struct nv84_vp_engine { | |
37 | struct nouveau_exec_engine base; | |
38 | }; | |
39 | ||
40 | static int | |
41 | nv84_vp_fini(struct drm_device *dev, int engine, bool suspend) | |
42 | { | |
43 | if (!(nv_rd32(dev, 0x000200) & 0x00020000)) | |
44 | return 0; | |
45 | ||
46 | nv_mask(dev, 0x000200, 0x00020000, 0x00000000); | |
47 | return 0; | |
48 | } | |
49 | ||
50 | static int | |
51 | nv84_vp_init(struct drm_device *dev, int engine) | |
52 | { | |
53 | nv_mask(dev, 0x000200, 0x00020000, 0x00000000); | |
54 | nv_mask(dev, 0x000200, 0x00020000, 0x00020000); | |
55 | return 0; | |
56 | } | |
57 | ||
58 | static void | |
59 | nv84_vp_destroy(struct drm_device *dev, int engine) | |
60 | { | |
61 | struct nv84_vp_engine *pvp = nv_engine(dev, engine); | |
62 | ||
63 | NVOBJ_ENGINE_DEL(dev, VP); | |
64 | ||
65 | kfree(pvp); | |
66 | } | |
67 | ||
68 | int | |
69 | nv84_vp_create(struct drm_device *dev) | |
70 | { | |
71 | struct nv84_vp_engine *pvp; | |
72 | ||
73 | pvp = kzalloc(sizeof(*pvp), GFP_KERNEL); | |
74 | if (!pvp) | |
75 | return -ENOMEM; | |
76 | ||
77 | pvp->base.destroy = nv84_vp_destroy; | |
78 | pvp->base.init = nv84_vp_init; | |
79 | pvp->base.fini = nv84_vp_fini; | |
80 | ||
81 | NVOBJ_ENGINE_ADD(dev, VP, &pvp->base); | |
82 | return 0; | |
83 | } |