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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
25#include "nouveau_drm.h"
26#include "nouveau_dma.h"
27#include "nouveau_fence.h"
28
29#include <nvif/if0004.h>
30
31struct nv04_fence_chan {
32 struct nouveau_fence_chan base;
33};
34
35struct nv04_fence_priv {
36 struct nouveau_fence_priv base;
37};
38
39static int
40nv04_fence_emit(struct nouveau_fence *fence)
41{
42 struct nouveau_channel *chan = fence->channel;
43 int ret = RING_SPACE(chan, 2);
44 if (ret == 0) {
45 BEGIN_NV04(chan, NvSubSw, 0x0150, 1);
46 OUT_RING (chan, fence->base.seqno);
47 FIRE_RING (chan);
48 }
49 return ret;
50}
51
52static int
53nv04_fence_sync(struct nouveau_fence *fence,
54 struct nouveau_channel *prev, struct nouveau_channel *chan)
55{
56 return -ENODEV;
57}
58
59static u32
60nv04_fence_read(struct nouveau_channel *chan)
61{
62 struct nv04_nvsw_get_ref_v0 args = {};
63 WARN_ON(nvif_object_mthd(&chan->nvsw, NV04_NVSW_GET_REF,
64 &args, sizeof(args)));
65 return args.ref;
66}
67
68static void
69nv04_fence_context_del(struct nouveau_channel *chan)
70{
71 struct nv04_fence_chan *fctx = chan->fence;
72 nouveau_fence_context_del(&fctx->base);
73 chan->fence = NULL;
74 nouveau_fence_context_free(&fctx->base);
75}
76
77static int
78nv04_fence_context_new(struct nouveau_channel *chan)
79{
80 struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL);
81 if (fctx) {
82 nouveau_fence_context_new(chan, &fctx->base);
83 fctx->base.emit = nv04_fence_emit;
84 fctx->base.sync = nv04_fence_sync;
85 fctx->base.read = nv04_fence_read;
86 chan->fence = fctx;
87 return 0;
88 }
89 return -ENOMEM;
90}
91
92static void
93nv04_fence_destroy(struct nouveau_drm *drm)
94{
95 struct nv04_fence_priv *priv = drm->fence;
96 drm->fence = NULL;
97 kfree(priv);
98}
99
100int
101nv04_fence_create(struct nouveau_drm *drm)
102{
103 struct nv04_fence_priv *priv;
104
105 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
106 if (!priv)
107 return -ENOMEM;
108
109 priv->base.dtor = nv04_fence_destroy;
110 priv->base.context_new = nv04_fence_context_new;
111 priv->base.context_del = nv04_fence_context_del;
112 priv->base.contexts = 15;
113 priv->base.context_base = fence_context_alloc(priv->base.contexts);
114 return 0;
115}
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
25#include <engine/fifo.h>
26
27#include "nouveau_drm.h"
28#include "nouveau_dma.h"
29#include "nouveau_fence.h"
30
31struct nv04_fence_chan {
32 struct nouveau_fence_chan base;
33};
34
35struct nv04_fence_priv {
36 struct nouveau_fence_priv base;
37};
38
39static int
40nv04_fence_emit(struct nouveau_fence *fence)
41{
42 struct nouveau_channel *chan = fence->channel;
43 int ret = RING_SPACE(chan, 2);
44 if (ret == 0) {
45 BEGIN_NV04(chan, NvSubSw, 0x0150, 1);
46 OUT_RING (chan, fence->sequence);
47 FIRE_RING (chan);
48 }
49 return ret;
50}
51
52static int
53nv04_fence_sync(struct nouveau_fence *fence,
54 struct nouveau_channel *prev, struct nouveau_channel *chan)
55{
56 return -ENODEV;
57}
58
59static u32
60nv04_fence_read(struct nouveau_channel *chan)
61{
62 struct nouveau_fifo_chan *fifo = (void *)chan->object;
63 return atomic_read(&fifo->refcnt);
64}
65
66static void
67nv04_fence_context_del(struct nouveau_channel *chan)
68{
69 struct nv04_fence_chan *fctx = chan->fence;
70 nouveau_fence_context_del(&fctx->base);
71 chan->fence = NULL;
72 kfree(fctx);
73}
74
75static int
76nv04_fence_context_new(struct nouveau_channel *chan)
77{
78 struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL);
79 if (fctx) {
80 nouveau_fence_context_new(&fctx->base);
81 fctx->base.emit = nv04_fence_emit;
82 fctx->base.sync = nv04_fence_sync;
83 fctx->base.read = nv04_fence_read;
84 chan->fence = fctx;
85 return 0;
86 }
87 return -ENOMEM;
88}
89
90static void
91nv04_fence_destroy(struct nouveau_drm *drm)
92{
93 struct nv04_fence_priv *priv = drm->fence;
94 drm->fence = NULL;
95 kfree(priv);
96}
97
98int
99nv04_fence_create(struct nouveau_drm *drm)
100{
101 struct nv04_fence_priv *priv;
102
103 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
104 if (!priv)
105 return -ENOMEM;
106
107 priv->base.dtor = nv04_fence_destroy;
108 priv->base.context_new = nv04_fence_context_new;
109 priv->base.context_del = nv04_fence_context_del;
110 return 0;
111}