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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 <core/object.h> | |
26 | #include <core/client.h> | |
27 | #include <core/class.h> | |
28 | ||
29 | #include <engine/fifo.h> | |
30 | ||
31 | #include "nouveau_drm.h" | |
32 | #include "nouveau_dma.h" | |
33 | #include "nouveau_fence.h" | |
34 | ||
35 | #include "nv50_display.h" | |
36 | ||
37 | struct nvc0_fence_priv { | |
38 | struct nouveau_fence_priv base; | |
39 | struct nouveau_bo *bo; | |
40 | u32 *suspend; | |
41 | }; | |
42 | ||
43 | struct nvc0_fence_chan { | |
44 | struct nouveau_fence_chan base; | |
45 | struct nouveau_vma vma; | |
46 | struct nouveau_vma dispc_vma[4]; | |
47 | }; | |
48 | ||
49 | u64 | |
50 | nvc0_fence_crtc(struct nouveau_channel *chan, int crtc) | |
51 | { | |
52 | struct nvc0_fence_chan *fctx = chan->fence; | |
53 | return fctx->dispc_vma[crtc].offset; | |
54 | } | |
55 | ||
56 | static int | |
57 | nvc0_fence_emit(struct nouveau_fence *fence) | |
58 | { | |
59 | struct nouveau_channel *chan = fence->channel; | |
60 | struct nvc0_fence_chan *fctx = chan->fence; | |
61 | struct nouveau_fifo_chan *fifo = (void *)chan->object; | |
62 | u64 addr = fctx->vma.offset + fifo->chid * 16; | |
63 | int ret; | |
64 | ||
65 | ret = RING_SPACE(chan, 5); | |
66 | if (ret == 0) { | |
67 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); | |
68 | OUT_RING (chan, upper_32_bits(addr)); | |
69 | OUT_RING (chan, lower_32_bits(addr)); | |
70 | OUT_RING (chan, fence->sequence); | |
71 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG); | |
72 | FIRE_RING (chan); | |
73 | } | |
74 | ||
75 | return ret; | |
76 | } | |
77 | ||
78 | static int | |
79 | nvc0_fence_sync(struct nouveau_fence *fence, | |
80 | struct nouveau_channel *prev, struct nouveau_channel *chan) | |
81 | { | |
82 | struct nvc0_fence_chan *fctx = chan->fence; | |
83 | struct nouveau_fifo_chan *fifo = (void *)prev->object; | |
84 | u64 addr = fctx->vma.offset + fifo->chid * 16; | |
85 | int ret; | |
86 | ||
87 | ret = RING_SPACE(chan, 5); | |
88 | if (ret == 0) { | |
89 | BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4); | |
90 | OUT_RING (chan, upper_32_bits(addr)); | |
91 | OUT_RING (chan, lower_32_bits(addr)); | |
92 | OUT_RING (chan, fence->sequence); | |
93 | OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL | | |
94 | NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD); | |
95 | FIRE_RING (chan); | |
96 | } | |
97 | ||
98 | return ret; | |
99 | } | |
100 | ||
101 | static u32 | |
102 | nvc0_fence_read(struct nouveau_channel *chan) | |
103 | { | |
104 | struct nouveau_fifo_chan *fifo = (void *)chan->object; | |
105 | struct nvc0_fence_priv *priv = chan->drm->fence; | |
106 | return nouveau_bo_rd32(priv->bo, fifo->chid * 16/4); | |
107 | } | |
108 | ||
109 | static void | |
110 | nvc0_fence_context_del(struct nouveau_channel *chan) | |
111 | { | |
112 | struct drm_device *dev = chan->drm->dev; | |
113 | struct nvc0_fence_priv *priv = chan->drm->fence; | |
114 | struct nvc0_fence_chan *fctx = chan->fence; | |
115 | int i; | |
116 | ||
117 | if (nv_device(chan->drm->device)->card_type >= NV_D0) { | |
118 | for (i = 0; i < dev->mode_config.num_crtc; i++) { | |
119 | struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i); | |
120 | nouveau_bo_vma_del(bo, &fctx->dispc_vma[i]); | |
121 | } | |
122 | } else | |
123 | if (nv_device(chan->drm->device)->card_type >= NV_50) { | |
124 | for (i = 0; i < dev->mode_config.num_crtc; i++) { | |
125 | struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i); | |
126 | nouveau_bo_vma_del(bo, &fctx->dispc_vma[i]); | |
127 | } | |
128 | } | |
129 | ||
130 | nouveau_bo_vma_del(priv->bo, &fctx->vma); | |
131 | nouveau_fence_context_del(&fctx->base); | |
132 | chan->fence = NULL; | |
133 | kfree(fctx); | |
134 | } | |
135 | ||
136 | static int | |
137 | nvc0_fence_context_new(struct nouveau_channel *chan) | |
138 | { | |
139 | struct nouveau_fifo_chan *fifo = (void *)chan->object; | |
140 | struct nouveau_client *client = nouveau_client(fifo); | |
141 | struct nvc0_fence_priv *priv = chan->drm->fence; | |
142 | struct nvc0_fence_chan *fctx; | |
143 | int ret, i; | |
144 | ||
145 | fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL); | |
146 | if (!fctx) | |
147 | return -ENOMEM; | |
148 | ||
149 | nouveau_fence_context_new(&fctx->base); | |
150 | ||
151 | ret = nouveau_bo_vma_add(priv->bo, client->vm, &fctx->vma); | |
152 | if (ret) | |
153 | nvc0_fence_context_del(chan); | |
154 | ||
155 | /* map display semaphore buffers into channel's vm */ | |
156 | for (i = 0; !ret && i < chan->drm->dev->mode_config.num_crtc; i++) { | |
157 | struct nouveau_bo *bo; | |
158 | if (nv_device(chan->drm->device)->card_type >= NV_D0) | |
159 | bo = nvd0_display_crtc_sema(chan->drm->dev, i); | |
160 | else | |
161 | bo = nv50_display_crtc_sema(chan->drm->dev, i); | |
162 | ||
163 | ret = nouveau_bo_vma_add(bo, client->vm, &fctx->dispc_vma[i]); | |
164 | } | |
165 | ||
166 | nouveau_bo_wr32(priv->bo, fifo->chid * 16/4, 0x00000000); | |
167 | return ret; | |
168 | } | |
169 | ||
170 | static bool | |
171 | nvc0_fence_suspend(struct nouveau_drm *drm) | |
172 | { | |
173 | struct nouveau_fifo *pfifo = nouveau_fifo(drm->device); | |
174 | struct nvc0_fence_priv *priv = drm->fence; | |
175 | int i; | |
176 | ||
177 | priv->suspend = vmalloc((pfifo->max + 1) * sizeof(u32)); | |
178 | if (priv->suspend) { | |
179 | for (i = 0; i <= pfifo->max; i++) | |
180 | priv->suspend[i] = nouveau_bo_rd32(priv->bo, i); | |
181 | } | |
182 | ||
183 | return priv->suspend != NULL; | |
184 | } | |
185 | ||
186 | static void | |
187 | nvc0_fence_resume(struct nouveau_drm *drm) | |
188 | { | |
189 | struct nouveau_fifo *pfifo = nouveau_fifo(drm->device); | |
190 | struct nvc0_fence_priv *priv = drm->fence; | |
191 | int i; | |
192 | ||
193 | if (priv->suspend) { | |
194 | for (i = 0; i <= pfifo->max; i++) | |
195 | nouveau_bo_wr32(priv->bo, i, priv->suspend[i]); | |
196 | vfree(priv->suspend); | |
197 | priv->suspend = NULL; | |
198 | } | |
199 | } | |
200 | ||
201 | static void | |
202 | nvc0_fence_destroy(struct nouveau_drm *drm) | |
203 | { | |
204 | struct nvc0_fence_priv *priv = drm->fence; | |
205 | nouveau_bo_unmap(priv->bo); | |
206 | nouveau_bo_ref(NULL, &priv->bo); | |
207 | drm->fence = NULL; | |
208 | kfree(priv); | |
209 | } | |
210 | ||
211 | int | |
212 | nvc0_fence_create(struct nouveau_drm *drm) | |
213 | { | |
214 | struct nouveau_fifo *pfifo = nouveau_fifo(drm->device); | |
215 | struct nvc0_fence_priv *priv; | |
216 | int ret; | |
217 | ||
218 | priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL); | |
219 | if (!priv) | |
220 | return -ENOMEM; | |
221 | ||
222 | priv->base.dtor = nvc0_fence_destroy; | |
223 | priv->base.suspend = nvc0_fence_suspend; | |
224 | priv->base.resume = nvc0_fence_resume; | |
225 | priv->base.context_new = nvc0_fence_context_new; | |
226 | priv->base.context_del = nvc0_fence_context_del; | |
227 | priv->base.emit = nvc0_fence_emit; | |
228 | priv->base.sync = nvc0_fence_sync; | |
229 | priv->base.read = nvc0_fence_read; | |
230 | ||
231 | ret = nouveau_bo_new(drm->dev, 16 * (pfifo->max + 1), 0, | |
232 | TTM_PL_FLAG_VRAM, 0, 0, NULL, &priv->bo); | |
233 | if (ret == 0) { | |
234 | ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM); | |
235 | if (ret == 0) | |
236 | ret = nouveau_bo_map(priv->bo); | |
237 | if (ret) | |
238 | nouveau_bo_ref(NULL, &priv->bo); | |
239 | } | |
240 | ||
241 | if (ret) | |
242 | nvc0_fence_destroy(drm); | |
243 | return ret; | |
244 | } |