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 <bskeggs@redhat.com> |
23 | */ |
24 | |
25 | #include <nvif/os.h> |
26 | #include <nvif/class.h> |
27 | #include <nvif/cl0002.h> |
28 | |
29 | #include "nouveau_drv.h" |
30 | #include "nouveau_dma.h" |
31 | #include "nv10_fence.h" |
32 | |
33 | #include "nv50_display.h" |
34 | |
35 | static int |
36 | nv50_fence_context_new(struct nouveau_channel *chan) |
37 | { |
38 | struct nv10_fence_priv *priv = chan->drm->fence; |
39 | struct nv10_fence_chan *fctx; |
40 | struct ttm_resource *reg = priv->bo->bo.resource; |
41 | u32 start = reg->start * PAGE_SIZE; |
42 | u32 limit = start + priv->bo->bo.base.size - 1; |
43 | int ret; |
44 | |
45 | fctx = chan->fence = kzalloc(size: sizeof(*fctx), GFP_KERNEL); |
46 | if (!fctx) |
47 | return -ENOMEM; |
48 | |
49 | nouveau_fence_context_new(chan, &fctx->base); |
50 | fctx->base.emit = nv10_fence_emit; |
51 | fctx->base.read = nv10_fence_read; |
52 | fctx->base.sync = nv17_fence_sync; |
53 | |
54 | ret = nvif_object_ctor(&chan->user, "fenceCtxDma" , NvSema, |
55 | NV_DMA_IN_MEMORY, |
56 | &(struct nv_dma_v0) { |
57 | .target = NV_DMA_V0_TARGET_VRAM, |
58 | .access = NV_DMA_V0_ACCESS_RDWR, |
59 | .start = start, |
60 | .limit = limit, |
61 | }, sizeof(struct nv_dma_v0), |
62 | &fctx->sema); |
63 | if (ret) |
64 | nv10_fence_context_del(chan); |
65 | return ret; |
66 | } |
67 | |
68 | int |
69 | nv50_fence_create(struct nouveau_drm *drm) |
70 | { |
71 | struct nv10_fence_priv *priv; |
72 | int ret = 0; |
73 | |
74 | priv = drm->fence = kzalloc(size: sizeof(*priv), GFP_KERNEL); |
75 | if (!priv) |
76 | return -ENOMEM; |
77 | |
78 | priv->base.dtor = nv10_fence_destroy; |
79 | priv->base.resume = nv17_fence_resume; |
80 | priv->base.context_new = nv50_fence_context_new; |
81 | priv->base.context_del = nv10_fence_context_del; |
82 | spin_lock_init(&priv->lock); |
83 | |
84 | ret = nouveau_bo_new(&drm->client, size: 4096, align: 0x1000, |
85 | NOUVEAU_GEM_DOMAIN_VRAM, |
86 | tile_mode: 0, tile_flags: 0x0000, NULL, NULL, &priv->bo); |
87 | if (!ret) { |
88 | ret = nouveau_bo_pin(priv->bo, NOUVEAU_GEM_DOMAIN_VRAM, contig: false); |
89 | if (!ret) { |
90 | ret = nouveau_bo_map(priv->bo); |
91 | if (ret) |
92 | nouveau_bo_unpin(priv->bo); |
93 | } |
94 | if (ret) |
95 | nouveau_bo_ref(NULL, pnvbo: &priv->bo); |
96 | } |
97 | |
98 | if (ret) { |
99 | nv10_fence_destroy(drm); |
100 | return ret; |
101 | } |
102 | |
103 | nouveau_bo_wr32(priv->bo, index: 0x000, val: 0x00000000); |
104 | return ret; |
105 | } |
106 | |