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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#include "nouveau_drv.h"
25#include "nouveau_dma.h"
26#include "nouveau_fence.h"
27
28#include <nvif/if0004.h>
29#include <nvif/push006c.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 nvif_push *push = fence->channel->chan.push;
43 int ret = PUSH_WAIT(push, 2);
44 if (ret == 0) {
45 PUSH_NVSQ(push, NV_SW, 0x0150, fence->base.seqno);
46 PUSH_KICK(push);
47 }
48 return ret;
49}
50
51static int
52nv04_fence_sync(struct nouveau_fence *fence,
53 struct nouveau_channel *prev, struct nouveau_channel *chan)
54{
55 return -ENODEV;
56}
57
58static u32
59nv04_fence_read(struct nouveau_channel *chan)
60{
61 struct nv04_nvsw_get_ref_v0 args = {};
62 WARN_ON(nvif_object_mthd(&chan->nvsw, NV04_NVSW_GET_REF,
63 &args, sizeof(args)));
64 return args.ref;
65}
66
67static void
68nv04_fence_context_del(struct nouveau_channel *chan)
69{
70 struct nv04_fence_chan *fctx = chan->fence;
71 nouveau_fence_context_del(&fctx->base);
72 chan->fence = NULL;
73 nouveau_fence_context_free(&fctx->base);
74}
75
76static int
77nv04_fence_context_new(struct nouveau_channel *chan)
78{
79 struct nv04_fence_chan *fctx = kzalloc(sizeof(*fctx), GFP_KERNEL);
80 if (fctx) {
81 nouveau_fence_context_new(chan, &fctx->base);
82 fctx->base.emit = nv04_fence_emit;
83 fctx->base.sync = nv04_fence_sync;
84 fctx->base.read = nv04_fence_read;
85 chan->fence = fctx;
86 return 0;
87 }
88 return -ENOMEM;
89}
90
91static void
92nv04_fence_destroy(struct nouveau_drm *drm)
93{
94 struct nv04_fence_priv *priv = drm->fence;
95 drm->fence = NULL;
96 kfree(priv);
97}
98
99int
100nv04_fence_create(struct nouveau_drm *drm)
101{
102 struct nv04_fence_priv *priv;
103
104 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
105 if (!priv)
106 return -ENOMEM;
107
108 priv->base.dtor = nv04_fence_destroy;
109 priv->base.context_new = nv04_fence_context_new;
110 priv->base.context_del = nv04_fence_context_del;
111 return 0;
112}