1 | /* $NetBSD: nouveau_nv50_fence.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs <bskeggs@redhat.com> |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_nv50_fence.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $" ); |
29 | |
30 | #include <core/object.h> |
31 | #include <core/class.h> |
32 | |
33 | #include "nouveau_drm.h" |
34 | #include "nouveau_dma.h" |
35 | #include "nv10_fence.h" |
36 | |
37 | #include "nv50_display.h" |
38 | |
39 | static int |
40 | nv50_fence_context_new(struct nouveau_channel *chan) |
41 | { |
42 | struct drm_device *dev = chan->drm->dev; |
43 | struct nv10_fence_priv *priv = chan->drm->fence; |
44 | struct nv10_fence_chan *fctx; |
45 | struct ttm_mem_reg *mem = &priv->bo->bo.mem; |
46 | struct nouveau_object *object; |
47 | u32 start = mem->start * PAGE_SIZE; |
48 | u32 limit = start + mem->size - 1; |
49 | int ret, i; |
50 | |
51 | fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); |
52 | if (!fctx) |
53 | return -ENOMEM; |
54 | |
55 | nouveau_fence_context_new(&fctx->base); |
56 | fctx->base.emit = nv10_fence_emit; |
57 | fctx->base.read = nv10_fence_read; |
58 | fctx->base.sync = nv17_fence_sync; |
59 | |
60 | ret = nouveau_object_new(nv_object(chan->cli), chan->handle, |
61 | NvSema, 0x003d, |
62 | &(struct nv_dma_class) { |
63 | .flags = NV_DMA_TARGET_VRAM | |
64 | NV_DMA_ACCESS_RDWR, |
65 | .start = start, |
66 | .limit = limit, |
67 | }, sizeof(struct nv_dma_class), |
68 | &object); |
69 | |
70 | /* dma objects for display sync channel semaphore blocks */ |
71 | for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) { |
72 | struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i); |
73 | u32 start = bo->bo.mem.start * PAGE_SIZE; |
74 | u32 limit = start + bo->bo.mem.size - 1; |
75 | |
76 | ret = nouveau_object_new(nv_object(chan->cli), chan->handle, |
77 | NvEvoSema0 + i, 0x003d, |
78 | &(struct nv_dma_class) { |
79 | .flags = NV_DMA_TARGET_VRAM | |
80 | NV_DMA_ACCESS_RDWR, |
81 | .start = start, |
82 | .limit = limit, |
83 | }, sizeof(struct nv_dma_class), |
84 | &object); |
85 | } |
86 | |
87 | if (ret) |
88 | nv10_fence_context_del(chan); |
89 | return ret; |
90 | } |
91 | |
92 | int |
93 | nv50_fence_create(struct nouveau_drm *drm) |
94 | { |
95 | struct nv10_fence_priv *priv; |
96 | int ret = 0; |
97 | |
98 | priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); |
99 | if (!priv) |
100 | return -ENOMEM; |
101 | |
102 | priv->base.dtor = nv10_fence_destroy; |
103 | priv->base.resume = nv17_fence_resume; |
104 | priv->base.context_new = nv50_fence_context_new; |
105 | priv->base.context_del = nv10_fence_context_del; |
106 | spin_lock_init(&priv->lock); |
107 | |
108 | ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM, |
109 | 0, 0x0000, NULL, &priv->bo); |
110 | if (!ret) { |
111 | ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); |
112 | if (!ret) { |
113 | ret = nouveau_bo_map(priv->bo); |
114 | if (ret) |
115 | nouveau_bo_unpin(priv->bo); |
116 | } |
117 | if (ret) |
118 | nouveau_bo_ref(NULL, &priv->bo); |
119 | } |
120 | |
121 | if (ret) { |
122 | nv10_fence_destroy(drm); |
123 | return ret; |
124 | } |
125 | |
126 | nouveau_bo_wr32(priv->bo, 0x000, 0x00000000); |
127 | return ret; |
128 | } |
129 | |