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 <core/object.h>
26 #include <core/class.h>
27
28 #include "nouveau_drm.h"
29 #include "nouveau_dma.h"
30 #include "nv10_fence.h"
31
32 #include "nv50_display.h"
33
34 static int
nv50_fence_context_new(struct nouveau_channel * chan)35 nv50_fence_context_new(struct nouveau_channel *chan)
36 {
37 struct drm_device *dev = chan->drm->dev;
38 struct nv10_fence_priv *priv = chan->drm->fence;
39 struct nv10_fence_chan *fctx;
40 struct ttm_mem_reg *mem = &priv->bo->bo.mem;
41 struct nouveau_object *object;
42 int ret, i;
43
44 fctx = chan->fence = kzalloc(sizeof(*fctx), GFP_KERNEL);
45 if (!fctx)
46 return -ENOMEM;
47
48 nouveau_fence_context_new(&fctx->base);
49 fctx->base.emit = nv10_fence_emit;
50 fctx->base.read = nv10_fence_read;
51 fctx->base.sync = nv17_fence_sync;
52
53 ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
54 NvSema, 0x0002,
55 &(struct nv_dma_class) {
56 .flags = NV_DMA_TARGET_VRAM |
57 NV_DMA_ACCESS_RDWR,
58 .start = mem->start * PAGE_SIZE,
59 .limit = mem->size - 1,
60 }, sizeof(struct nv_dma_class),
61 &object);
62
63 /* dma objects for display sync channel semaphore blocks */
64 for (i = 0; !ret && i < dev->mode_config.num_crtc; i++) {
65 struct nouveau_bo *bo = nv50_display_crtc_sema(dev, i);
66
67 ret = nouveau_object_new(nv_object(chan->cli), chan->handle,
68 NvEvoSema0 + i, 0x003d,
69 &(struct nv_dma_class) {
70 .flags = NV_DMA_TARGET_VRAM |
71 NV_DMA_ACCESS_RDWR,
72 .start = bo->bo.offset,
73 .limit = bo->bo.offset + 0xfff,
74 }, sizeof(struct nv_dma_class),
75 &object);
76 }
77
78 if (ret)
79 nv10_fence_context_del(chan);
80 return ret;
81 }
82
83 int
nv50_fence_create(struct nouveau_drm * drm)84 nv50_fence_create(struct nouveau_drm *drm)
85 {
86 struct nv10_fence_priv *priv;
87 int ret = 0;
88
89 priv = drm->fence = kzalloc(sizeof(*priv), GFP_KERNEL);
90 if (!priv)
91 return -ENOMEM;
92
93 priv->base.dtor = nv10_fence_destroy;
94 priv->base.resume = nv17_fence_resume;
95 priv->base.context_new = nv50_fence_context_new;
96 priv->base.context_del = nv10_fence_context_del;
97 spin_lock_init(&priv->lock);
98
99 ret = nouveau_bo_new(drm->dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
100 0, 0x0000, NULL, &priv->bo);
101 if (!ret) {
102 ret = nouveau_bo_pin(priv->bo, TTM_PL_FLAG_VRAM);
103 if (!ret) {
104 ret = nouveau_bo_map(priv->bo);
105 if (ret)
106 nouveau_bo_unpin(priv->bo);
107 }
108 if (ret)
109 nouveau_bo_ref(NULL, &priv->bo);
110 }
111
112 if (ret) {
113 nv10_fence_destroy(drm);
114 return ret;
115 }
116
117 nouveau_bo_wr32(priv->bo, 0x000, 0x00000000);
118 return ret;
119 }
120