Commit | Line | Data |
---|---|---|
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 | |
23 | */ | |
24 | ||
ebb945a9 | 25 | #include "nouveau_drm.h" |
5e120f6e | 26 | #include "nouveau_dma.h" |
5e120f6e BS |
27 | #include "nouveau_fence.h" |
28 | ||
29 | struct nv04_fence_chan { | |
30 | struct nouveau_fence_chan base; | |
5e120f6e BS |
31 | }; |
32 | ||
33 | struct nv04_fence_priv { | |
34 | struct nouveau_fence_priv base; | |
35 | }; | |
36 | ||
37 | static int | |
38 | nv04_fence_emit(struct nouveau_fence *fence) | |
39 | { | |
40 | struct nouveau_channel *chan = fence->channel; | |
41 | int ret = RING_SPACE(chan, 2); | |
42 | if (ret == 0) { | |
43 | BEGIN_NV04(chan, NvSubSw, 0x0150, 1); | |
29ba89b2 | 44 | OUT_RING (chan, fence->base.seqno); |
5e120f6e BS |
45 | FIRE_RING (chan); |
46 | } | |
47 | return ret; | |
48 | } | |
49 | ||
50 | static int | |
906c033e BS |
51 | nv04_fence_sync(struct nouveau_fence *fence, |
52 | struct nouveau_channel *prev, struct nouveau_channel *chan) | |
5e120f6e BS |
53 | { |
54 | return -ENODEV; | |
55 | } | |
56 | ||
5e120f6e BS |
57 | static u32 |
58 | nv04_fence_read(struct nouveau_channel *chan) | |
59 | { | |
967e7bde | 60 | struct nouveau_fifo_chan *fifo = nvkm_fifo_chan(chan);; |
ebb945a9 | 61 | return atomic_read(&fifo->refcnt); |
5e120f6e BS |
62 | } |
63 | ||
64 | static void | |
e193b1d4 | 65 | nv04_fence_context_del(struct nouveau_channel *chan) |
5e120f6e | 66 | { |
e193b1d4 | 67 | struct nv04_fence_chan *fctx = chan->fence; |
5e120f6e | 68 | nouveau_fence_context_del(&fctx->base); |
e193b1d4 | 69 | chan->fence = NULL; |
15a996bb | 70 | nouveau_fence_context_free(&fctx->base); |
5e120f6e BS |
71 | } |
72 | ||
73 | static int | |
e193b1d4 | 74 | nv04_fence_context_new(struct nouveau_channel *chan) |
5e120f6e BS |
75 | { |
76 | struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL); | |
77 | if (fctx) { | |
29ba89b2 | 78 | nouveau_fence_context_new(chan, &fctx->base); |
827520ce BS |
79 | fctx->base.emit = nv04_fence_emit; |
80 | fctx->base.sync = nv04_fence_sync; | |
81 | fctx->base.read = nv04_fence_read; | |
e193b1d4 | 82 | chan->fence = fctx; |
5e120f6e BS |
83 | return 0; |
84 | } | |
85 | return -ENOMEM; | |
86 | } | |
87 | ||
5e120f6e | 88 | static void |
ebb945a9 | 89 | nv04_fence_destroy(struct nouveau_drm *drm) |
5e120f6e | 90 | { |
ebb945a9 BS |
91 | struct nv04_fence_priv *priv = drm->fence; |
92 | drm->fence = NULL; | |
5e120f6e BS |
93 | kfree(priv); |
94 | } | |
95 | ||
96 | int | |
ebb945a9 | 97 | nv04_fence_create(struct nouveau_drm *drm) |
5e120f6e | 98 | { |
5e120f6e | 99 | struct nv04_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 = nv04_fence_destroy; |
106 | priv->base.context_new = nv04_fence_context_new; | |
107 | priv->base.context_del = nv04_fence_context_del; | |
29ba89b2 ML |
108 | priv->base.contexts = 15; |
109 | priv->base.context_base = fence_context_alloc(priv->base.contexts); | |
ebb945a9 | 110 | return 0; |
5e120f6e | 111 | } |