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>
24 #include "nouveau_drv.h"
25 #include "nouveau_dma.h"
26 #include "nv10_fence.h"
28 #include <nvif/push006c.h>
30 #include <nvhw/class/cl006e.h>
33 nv10_fence_emit(struct nouveau_fence *fence)
35 struct nvif_push *push = fence->channel->chan.push;
36 int ret = PUSH_WAIT(push, 2);
38 PUSH_MTHD(push, NV06E, SET_REFERENCE, fence->base.seqno);
46 nv10_fence_sync(struct nouveau_fence *fence,
47 struct nouveau_channel *prev, struct nouveau_channel *chan)
53 nv10_fence_read(struct nouveau_channel *chan)
55 return NVIF_RD32(&chan->user, NV06E, REFERENCE);
59 nv10_fence_context_del(struct nouveau_channel *chan)
61 struct nv10_fence_chan *fctx = chan->fence;
62 nouveau_fence_context_del(&fctx->base);
63 nvif_object_dtor(&fctx->sema);
65 nouveau_fence_context_free(&fctx->base);
69 nv10_fence_context_new(struct nouveau_channel *chan)
71 struct nv10_fence_chan *fctx;
73 fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
77 nouveau_fence_context_new(chan, &fctx->base);
78 fctx->base.emit = nv10_fence_emit;
79 fctx->base.read = nv10_fence_read;
80 fctx->base.sync = nv10_fence_sync;
85 nv10_fence_destroy(struct nouveau_drm *drm)
87 struct nv10_fence_priv *priv = drm->fence;
88 nouveau_bo_unmap(priv->bo);
90 nouveau_bo_unpin(priv->bo);
91 nouveau_bo_ref(NULL, &priv->bo);
97 nv10_fence_create(struct nouveau_drm *drm)
99 struct nv10_fence_priv *priv;
101 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
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;
108 spin_lock_init(&priv->lock);