2 * Copyright 2012 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
22 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 #include "nouveau_drv.h"
26 #include "nouveau_dma.h"
27 #include "nv10_fence.h"
30 nv10_fence_emit(struct nouveau_fence *fence)
32 struct nouveau_channel *chan = fence->channel;
33 int ret = RING_SPACE(chan, 2);
35 BEGIN_NV04(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
36 OUT_RING (chan, fence->base.seqno);
44 nv10_fence_sync(struct nouveau_fence *fence,
45 struct nouveau_channel *prev, struct nouveau_channel *chan)
51 nv10_fence_read(struct nouveau_channel *chan)
53 return nvif_rd32(&chan->user, 0x0048);
57 nv10_fence_context_del(struct nouveau_channel *chan)
59 struct nv10_fence_chan *fctx = chan->fence;
60 nouveau_fence_context_del(&fctx->base);
61 nvif_object_fini(&fctx->sema);
63 nouveau_fence_context_free(&fctx->base);
67 nv10_fence_context_new(struct nouveau_channel *chan)
69 struct nv10_fence_chan *fctx;
71 fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
75 nouveau_fence_context_new(chan, &fctx->base);
76 fctx->base.emit = nv10_fence_emit;
77 fctx->base.read = nv10_fence_read;
78 fctx->base.sync = nv10_fence_sync;
83 nv10_fence_destroy(struct nouveau_drm *drm)
85 struct nv10_fence_priv *priv = drm->fence;
86 nouveau_bo_unmap(priv->bo);
88 nouveau_bo_unpin(priv->bo);
89 nouveau_bo_ref(NULL, &priv->bo);
95 nv10_fence_create(struct nouveau_drm *drm)
97 struct nv10_fence_priv *priv;
99 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
103 priv->base.dtor = nv10_fence_destroy;
104 priv->base.context_new = nv10_fence_context_new;
105 priv->base.context_del = nv10_fence_context_del;
106 priv->base.contexts = 31;
107 priv->base.context_base = dma_fence_context_alloc(priv->base.contexts);
108 spin_lock_init(&priv->lock);