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6ee73861 BS |
1 | /* |
2 | * Copyright (C) 2007 Ben Skeggs. | |
3 | * | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining | |
7 | * a copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sublicense, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial | |
16 | * portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
19 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
20 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
21 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE | |
22 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |
23 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
24 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | */ | |
27 | ||
760285e7 | 28 | #include <drm/drmP.h> |
6ee73861 | 29 | #include "nouveau_drv.h" |
a8eaebc6 | 30 | #include "nouveau_ramht.h" |
6ee73861 BS |
31 | |
32 | int | |
33 | nouveau_notifier_init_channel(struct nouveau_channel *chan) | |
34 | { | |
35 | struct drm_device *dev = chan->dev; | |
0b718733 | 36 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
6ee73861 | 37 | struct nouveau_bo *ntfy = NULL; |
11dea1a2 | 38 | uint32_t flags, ttmpl; |
6ee73861 BS |
39 | int ret; |
40 | ||
11dea1a2 | 41 | if (nouveau_vram_notify) { |
6ba9a683 | 42 | flags = NOUVEAU_GEM_DOMAIN_VRAM; |
11dea1a2 BS |
43 | ttmpl = TTM_PL_FLAG_VRAM; |
44 | } else { | |
6ba9a683 | 45 | flags = NOUVEAU_GEM_DOMAIN_GART; |
11dea1a2 BS |
46 | ttmpl = TTM_PL_FLAG_TT; |
47 | } | |
f927b890 | 48 | |
f6d4e621 | 49 | ret = nouveau_gem_new(dev, PAGE_SIZE, 0, flags, 0, 0, &ntfy); |
6ee73861 BS |
50 | if (ret) |
51 | return ret; | |
52 | ||
11dea1a2 | 53 | ret = nouveau_bo_pin(ntfy, ttmpl); |
6ee73861 BS |
54 | if (ret) |
55 | goto out_err; | |
56 | ||
57 | ret = nouveau_bo_map(ntfy); | |
58 | if (ret) | |
59 | goto out_err; | |
60 | ||
0b718733 BS |
61 | if (dev_priv->card_type >= NV_50) { |
62 | ret = nouveau_bo_vma_add(ntfy, chan->vm, &chan->notifier_vma); | |
63 | if (ret) | |
64 | goto out_err; | |
65 | } | |
66 | ||
b833ac26 | 67 | ret = drm_mm_init(&chan->notifier_heap, 0, ntfy->bo.mem.size); |
6ee73861 BS |
68 | if (ret) |
69 | goto out_err; | |
70 | ||
71 | chan->notifier_bo = ntfy; | |
72 | out_err: | |
0b718733 BS |
73 | if (ret) { |
74 | nouveau_bo_vma_del(ntfy, &chan->notifier_vma); | |
bc9025bd | 75 | drm_gem_object_unreference_unlocked(ntfy->gem); |
0b718733 | 76 | } |
6ee73861 BS |
77 | |
78 | return ret; | |
79 | } | |
80 | ||
81 | void | |
82 | nouveau_notifier_takedown_channel(struct nouveau_channel *chan) | |
83 | { | |
84 | struct drm_device *dev = chan->dev; | |
85 | ||
86 | if (!chan->notifier_bo) | |
87 | return; | |
88 | ||
0b718733 | 89 | nouveau_bo_vma_del(chan->notifier_bo, &chan->notifier_vma); |
6ee73861 BS |
90 | nouveau_bo_unmap(chan->notifier_bo); |
91 | mutex_lock(&dev->struct_mutex); | |
92 | nouveau_bo_unpin(chan->notifier_bo); | |
6ee73861 | 93 | mutex_unlock(&dev->struct_mutex); |
bc9025bd | 94 | drm_gem_object_unreference_unlocked(chan->notifier_bo->gem); |
b833ac26 | 95 | drm_mm_takedown(&chan->notifier_heap); |
6ee73861 BS |
96 | } |
97 | ||
98 | static void | |
99 | nouveau_notifier_gpuobj_dtor(struct drm_device *dev, | |
100 | struct nouveau_gpuobj *gpuobj) | |
101 | { | |
102 | NV_DEBUG(dev, "\n"); | |
103 | ||
104 | if (gpuobj->priv) | |
b833ac26 | 105 | drm_mm_put_block(gpuobj->priv); |
6ee73861 BS |
106 | } |
107 | ||
108 | int | |
109 | nouveau_notifier_alloc(struct nouveau_channel *chan, uint32_t handle, | |
73412c38 BS |
110 | int size, uint32_t start, uint32_t end, |
111 | uint32_t *b_offset) | |
6ee73861 BS |
112 | { |
113 | struct drm_device *dev = chan->dev; | |
26c0c9e3 | 114 | struct drm_nouveau_private *dev_priv = dev->dev_private; |
6ee73861 | 115 | struct nouveau_gpuobj *nobj = NULL; |
b833ac26 | 116 | struct drm_mm_node *mem; |
b2e0d195 | 117 | uint64_t offset; |
6ee73861 BS |
118 | int target, ret; |
119 | ||
73412c38 BS |
120 | mem = drm_mm_search_free_in_range(&chan->notifier_heap, size, 0, |
121 | start, end, 0); | |
b833ac26 | 122 | if (mem) |
73412c38 | 123 | mem = drm_mm_get_block_range(mem, size, 0, start, end); |
6ee73861 BS |
124 | if (!mem) { |
125 | NV_ERROR(dev, "Channel %d notifier block full\n", chan->id); | |
126 | return -ENOMEM; | |
127 | } | |
128 | ||
26c0c9e3 BS |
129 | if (dev_priv->card_type < NV_50) { |
130 | if (chan->notifier_bo->bo.mem.mem_type == TTM_PL_VRAM) | |
131 | target = NV_MEM_TARGET_VRAM; | |
132 | else | |
133 | target = NV_MEM_TARGET_GART; | |
180cc306 | 134 | offset = chan->notifier_bo->bo.offset; |
26c0c9e3 BS |
135 | } else { |
136 | target = NV_MEM_TARGET_VM; | |
0b718733 | 137 | offset = chan->notifier_vma.offset; |
26c0c9e3 | 138 | } |
6ee73861 BS |
139 | offset += mem->start; |
140 | ||
141 | ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, offset, | |
7f4a195f | 142 | mem->size, NV_MEM_ACCESS_RW, target, |
6ee73861 BS |
143 | &nobj); |
144 | if (ret) { | |
b833ac26 | 145 | drm_mm_put_block(mem); |
6ee73861 BS |
146 | NV_ERROR(dev, "Error creating notifier ctxdma: %d\n", ret); |
147 | return ret; | |
148 | } | |
b833ac26 BS |
149 | nobj->dtor = nouveau_notifier_gpuobj_dtor; |
150 | nobj->priv = mem; | |
6ee73861 | 151 | |
a8eaebc6 BS |
152 | ret = nouveau_ramht_insert(chan, handle, nobj); |
153 | nouveau_gpuobj_ref(NULL, &nobj); | |
6ee73861 | 154 | if (ret) { |
b833ac26 | 155 | drm_mm_put_block(mem); |
a8eaebc6 | 156 | NV_ERROR(dev, "Error adding notifier to ramht: %d\n", ret); |
6ee73861 BS |
157 | return ret; |
158 | } | |
159 | ||
160 | *b_offset = mem->start; | |
161 | return 0; | |
162 | } |