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5e120f6e BS |
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 <bskeggs@redhat.com> | |
23 | */ | |
24 | ||
ebb945a9 BS |
25 | #include <core/object.h> |
26 | #include <core/class.h> | |
27 | ||
28 | #include "nouveau_drm.h" | |
5e120f6e | 29 | #include "nouveau_dma.h" |
a4cea27b | 30 | #include "nv10_fence.h" |
5e120f6e | 31 | |
f589be88 | 32 | int |
5e120f6e BS |
33 | nv10_fence_emit(struct nouveau_fence *fence) |
34 | { | |
35 | struct nouveau_channel *chan = fence->channel; | |
36 | int ret = RING_SPACE(chan, 2); | |
37 | if (ret == 0) { | |
38 | BEGIN_NV04(chan, 0, NV10_SUBCHAN_REF_CNT, 1); | |
39 | OUT_RING (chan, fence->sequence); | |
40 | FIRE_RING (chan); | |
41 | } | |
42 | return ret; | |
43 | } | |
44 | ||
906c033e | 45 | |
5e120f6e | 46 | static int |
906c033e BS |
47 | nv10_fence_sync(struct nouveau_fence *fence, |
48 | struct nouveau_channel *prev, struct nouveau_channel *chan) | |
5e120f6e BS |
49 | { |
50 | return -ENODEV; | |
51 | } | |
52 | ||
f589be88 | 53 | u32 |
5e120f6e BS |
54 | nv10_fence_read(struct nouveau_channel *chan) |
55 | { | |
ebb945a9 | 56 | return nv_ro32(chan->object, 0x0048); |
5e120f6e BS |
57 | } |
58 | ||
f589be88 | 59 | void |
e193b1d4 | 60 | nv10_fence_context_del(struct nouveau_channel *chan) |
5e120f6e | 61 | { |
e193b1d4 | 62 | struct nv10_fence_chan *fctx = chan->fence; |
5e120f6e | 63 | nouveau_fence_context_del(&fctx->base); |
e193b1d4 | 64 | chan->fence = NULL; |
5e120f6e BS |
65 | kfree(fctx); |
66 | } | |
67 | ||
60e5cb79 | 68 | int |
e193b1d4 | 69 | nv10_fence_context_new(struct nouveau_channel *chan) |
5e120f6e | 70 | { |
5e120f6e | 71 | struct nv10_fence_chan *fctx; |
5e120f6e | 72 | |
e193b1d4 | 73 | fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); |
5e120f6e BS |
74 | if (!fctx) |
75 | return -ENOMEM; | |
76 | ||
77 | nouveau_fence_context_new(&fctx->base); | |
827520ce BS |
78 | fctx->base.emit = nv10_fence_emit; |
79 | fctx->base.read = nv10_fence_read; | |
80 | fctx->base.sync = nv10_fence_sync; | |
60e5cb79 | 81 | return 0; |
5e120f6e BS |
82 | } |
83 | ||
f589be88 | 84 | void |
ebb945a9 | 85 | nv10_fence_destroy(struct nouveau_drm *drm) |
5e120f6e | 86 | { |
ebb945a9 BS |
87 | struct nv10_fence_priv *priv = drm->fence; |
88 | nouveau_bo_unmap(priv->bo); | |
04c8c210 MS |
89 | if (priv->bo) |
90 | nouveau_bo_unpin(priv->bo); | |
5e120f6e | 91 | nouveau_bo_ref(NULL, &priv->bo); |
ebb945a9 | 92 | drm->fence = NULL; |
5e120f6e BS |
93 | kfree(priv); |
94 | } | |
95 | ||
96 | int | |
ebb945a9 | 97 | nv10_fence_create(struct nouveau_drm *drm) |
5e120f6e | 98 | { |
5e120f6e | 99 | struct nv10_fence_priv *priv; |
5e120f6e | 100 | |
ebb945a9 | 101 | priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); |
5e120f6e BS |
102 | if (!priv) |
103 | return -ENOMEM; | |
104 | ||
e193b1d4 BS |
105 | priv->base.dtor = nv10_fence_destroy; |
106 | priv->base.context_new = nv10_fence_context_new; | |
107 | priv->base.context_del = nv10_fence_context_del; | |
5e120f6e | 108 | spin_lock_init(&priv->lock); |
60e5cb79 | 109 | return 0; |
5e120f6e | 110 | } |