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1 | /* |
2 | * Copyright 2010 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 | ||
760285e7 | 25 | #include <drm/drmP.h> |
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26 | #include "nouveau_drv.h" |
27 | #include "nouveau_mm.h" | |
28 | ||
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29 | /* 0 = unsupported |
30 | * 1 = non-compressed | |
31 | * 3 = compressed | |
32 | */ | |
33 | static const u8 types[256] = { | |
34 | 1, 1, 3, 3, 3, 3, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, | |
35 | 0, 1, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, | |
36 | 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, | |
37 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 3, 3, | |
38 | 3, 3, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
39 | 0, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
40 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
41 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, | |
42 | 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, 0, 1, 1, 1, 1, 0, | |
43 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | |
44 | 0, 0, 0, 3, 3, 3, 3, 1, 1, 1, 1, 0, 0, 0, 0, 0, | |
45 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, | |
12b6d9d8 | 46 | 3, 3, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 3, 3, |
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47 | 3, 3, 0, 0, 0, 0, 0, 0, 3, 0, 0, 3, 0, 3, 0, 3, |
48 | 3, 0, 3, 3, 3, 3, 3, 0, 0, 3, 0, 3, 0, 3, 3, 0, | |
49 | 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 1, 1, 0 | |
50 | }; | |
51 | ||
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52 | bool |
53 | nvc0_vram_flags_valid(struct drm_device *dev, u32 tile_flags) | |
54 | { | |
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55 | u8 memtype = (tile_flags & NOUVEAU_GEM_TILE_LAYOUT_MASK) >> 8; |
56 | return likely((types[memtype] == 1)); | |
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57 | } |
58 | ||
59 | int | |
60 | nvc0_vram_new(struct drm_device *dev, u64 size, u32 align, u32 ncmin, | |
d5f42394 | 61 | u32 type, struct nouveau_mem **pmem) |
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62 | { |
63 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
987eec10 | 64 | struct nouveau_mm *mm = &dev_priv->engine.vram.mm; |
8984e046 | 65 | struct nouveau_mm_node *r; |
d5f42394 | 66 | struct nouveau_mem *mem; |
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67 | int ret; |
68 | ||
69 | size >>= 12; | |
70 | align >>= 12; | |
71 | ncmin >>= 12; | |
72 | ||
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73 | mem = kzalloc(sizeof(*mem), GFP_KERNEL); |
74 | if (!mem) | |
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75 | return -ENOMEM; |
76 | ||
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77 | INIT_LIST_HEAD(&mem->regions); |
78 | mem->dev = dev_priv->dev; | |
8f7286f8 | 79 | mem->memtype = (type & 0xff); |
d5f42394 | 80 | mem->size = size; |
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81 | |
82 | mutex_lock(&mm->mutex); | |
83 | do { | |
84 | ret = nouveau_mm_get(mm, 1, size, ncmin, align, &r); | |
85 | if (ret) { | |
86 | mutex_unlock(&mm->mutex); | |
d5f42394 | 87 | nv50_vram_del(dev, &mem); |
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88 | return ret; |
89 | } | |
90 | ||
d5f42394 | 91 | list_add_tail(&r->rl_entry, &mem->regions); |
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92 | size -= r->length; |
93 | } while (size); | |
94 | mutex_unlock(&mm->mutex); | |
95 | ||
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96 | r = list_first_entry(&mem->regions, struct nouveau_mm_node, rl_entry); |
97 | mem->offset = (u64)r->offset << 12; | |
98 | *pmem = mem; | |
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99 | return 0; |
100 | } | |
101 | ||
102 | int | |
103 | nvc0_vram_init(struct drm_device *dev) | |
104 | { | |
105 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
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106 | struct nouveau_vram_engine *vram = &dev_priv->engine.vram; |
107 | const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */ | |
108 | const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */ | |
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109 | u32 parts = nv_rd32(dev, 0x022438); |
110 | u32 pmask = nv_rd32(dev, 0x022554); | |
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111 | u32 bsize = nv_rd32(dev, 0x10f20c); |
112 | u32 offset, length; | |
113 | bool uniform = true; | |
d4547ed8 | 114 | int ret, part; |
8984e046 | 115 | |
aa650096 | 116 | NV_DEBUG(dev, "0x100800: 0x%08x\n", nv_rd32(dev, 0x100800)); |
29181d2f | 117 | NV_DEBUG(dev, "parts 0x%08x mask 0x%08x\n", parts, pmask); |
24f246ac | 118 | |
f3298532 | 119 | dev_priv->vram_type = nouveau_mem_vbios_type(dev); |
950c44b6 | 120 | dev_priv->vram_rank_B = !!(nv_rd32(dev, 0x10f200) & 0x00000004); |
f3298532 | 121 | |
aa650096 | 122 | /* read amount of vram attached to each memory controller */ |
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123 | for (part = 0; part < parts; part++) { |
124 | if (!(pmask & (1 << part))) { | |
125 | u32 psize = nv_rd32(dev, 0x11020c + (part * 0x1000)); | |
126 | if (psize != bsize) { | |
127 | if (psize < bsize) | |
128 | bsize = psize; | |
129 | uniform = false; | |
130 | } | |
131 | ||
132 | NV_DEBUG(dev, "%d: mem_amount 0x%08x\n", part, psize); | |
133 | dev_priv->vram_size += (u64)psize << 20; | |
aa650096 | 134 | } |
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135 | } |
136 | ||
137 | /* if all controllers have the same amount attached, there's no holes */ | |
138 | if (uniform) { | |
139 | offset = rsvd_head; | |
140 | length = (dev_priv->vram_size >> 12) - rsvd_head - rsvd_tail; | |
141 | return nouveau_mm_init(&vram->mm, offset, length, 1); | |
142 | } | |
24f246ac | 143 | |
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144 | /* otherwise, address lowest common amount from 0GiB */ |
145 | ret = nouveau_mm_init(&vram->mm, rsvd_head, (bsize << 8) * parts, 1); | |
146 | if (ret) | |
147 | return ret; | |
148 | ||
149 | /* and the rest starting from (8GiB + common_size) */ | |
150 | offset = (0x0200000000ULL >> 12) + (bsize << 8); | |
151 | length = (dev_priv->vram_size >> 12) - (bsize << 8) - rsvd_tail; | |
152 | ||
153 | ret = nouveau_mm_init(&vram->mm, offset, length, 0); | |
154 | if (ret) { | |
155 | nouveau_mm_fini(&vram->mm); | |
156 | return ret; | |
157 | } | |
158 | ||
159 | return 0; | |
8984e046 | 160 | } |