1 | /* $NetBSD: nouveau_subdev_fb_base.c,v 1.1.1.1 2014/08/06 12:36:30 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 |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_fb_base.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
29 | |
30 | #include <subdev/bios.h> |
31 | #include <subdev/bios/bit.h> |
32 | |
33 | #include "priv.h" |
34 | |
35 | int |
36 | nouveau_fb_bios_memtype(struct nouveau_bios *bios) |
37 | { |
38 | struct bit_entry M; |
39 | u8 ramcfg; |
40 | |
41 | ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2; |
42 | if (!bit_entry(bios, 'M', &M) && M.version == 2 && M.length >= 5) { |
43 | u16 table = nv_ro16(bios, M.offset + 3); |
44 | u8 version = nv_ro08(bios, table + 0); |
45 | u8 = nv_ro08(bios, table + 1); |
46 | u8 record = nv_ro08(bios, table + 2); |
47 | u8 entries = nv_ro08(bios, table + 3); |
48 | if (table && version == 0x10 && ramcfg < entries) { |
49 | u16 entry = table + header + (ramcfg * record); |
50 | switch (nv_ro08(bios, entry) & 0x0f) { |
51 | case 0: return NV_MEM_TYPE_DDR2; |
52 | case 1: return NV_MEM_TYPE_DDR3; |
53 | case 2: return NV_MEM_TYPE_GDDR3; |
54 | case 3: return NV_MEM_TYPE_GDDR5; |
55 | default: |
56 | break; |
57 | } |
58 | |
59 | } |
60 | } |
61 | |
62 | return NV_MEM_TYPE_UNKNOWN; |
63 | } |
64 | |
65 | int |
66 | _nouveau_fb_fini(struct nouveau_object *object, bool suspend) |
67 | { |
68 | struct nouveau_fb *pfb = (void *)object; |
69 | int ret; |
70 | |
71 | ret = nv_ofuncs(pfb->ram)->fini(nv_object(pfb->ram), suspend); |
72 | if (ret && suspend) |
73 | return ret; |
74 | |
75 | return nouveau_subdev_fini(&pfb->base, suspend); |
76 | } |
77 | |
78 | int |
79 | _nouveau_fb_init(struct nouveau_object *object) |
80 | { |
81 | struct nouveau_fb *pfb = (void *)object; |
82 | int ret, i; |
83 | |
84 | ret = nouveau_subdev_init(&pfb->base); |
85 | if (ret) |
86 | return ret; |
87 | |
88 | ret = nv_ofuncs(pfb->ram)->init(nv_object(pfb->ram)); |
89 | if (ret) |
90 | return ret; |
91 | |
92 | for (i = 0; i < pfb->tile.regions; i++) |
93 | pfb->tile.prog(pfb, i, &pfb->tile.region[i]); |
94 | |
95 | return 0; |
96 | } |
97 | |
98 | void |
99 | _nouveau_fb_dtor(struct nouveau_object *object) |
100 | { |
101 | struct nouveau_fb *pfb = (void *)object; |
102 | int i; |
103 | |
104 | for (i = 0; i < pfb->tile.regions; i++) |
105 | pfb->tile.fini(pfb, i, &pfb->tile.region[i]); |
106 | nouveau_mm_fini(&pfb->tags); |
107 | nouveau_mm_fini(&pfb->vram); |
108 | |
109 | nouveau_object_ref(NULL, (struct nouveau_object **)&pfb->ram); |
110 | nouveau_subdev_destroy(&pfb->base); |
111 | } |
112 | |
113 | int |
114 | nouveau_fb_create_(struct nouveau_object *parent, struct nouveau_object *engine, |
115 | struct nouveau_oclass *oclass, int length, void **pobject) |
116 | { |
117 | struct nouveau_fb_impl *impl = (void *)oclass; |
118 | static const char *name[] = { |
119 | [NV_MEM_TYPE_UNKNOWN] = "unknown" , |
120 | [NV_MEM_TYPE_STOLEN ] = "stolen system memory" , |
121 | [NV_MEM_TYPE_SGRAM ] = "SGRAM" , |
122 | [NV_MEM_TYPE_SDRAM ] = "SDRAM" , |
123 | [NV_MEM_TYPE_DDR1 ] = "DDR1" , |
124 | [NV_MEM_TYPE_DDR2 ] = "DDR2" , |
125 | [NV_MEM_TYPE_DDR3 ] = "DDR3" , |
126 | [NV_MEM_TYPE_GDDR2 ] = "GDDR2" , |
127 | [NV_MEM_TYPE_GDDR3 ] = "GDDR3" , |
128 | [NV_MEM_TYPE_GDDR4 ] = "GDDR4" , |
129 | [NV_MEM_TYPE_GDDR5 ] = "GDDR5" , |
130 | }; |
131 | struct nouveau_object *ram; |
132 | struct nouveau_fb *pfb; |
133 | int ret; |
134 | |
135 | ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PFB" , "fb" , |
136 | length, pobject); |
137 | pfb = *pobject; |
138 | if (ret) |
139 | return ret; |
140 | |
141 | pfb->memtype_valid = impl->memtype; |
142 | |
143 | ret = nouveau_object_ctor(nv_object(pfb), nv_object(pfb), |
144 | impl->ram, NULL, 0, &ram); |
145 | if (ret) { |
146 | nv_fatal(pfb, "error detecting memory configuration!!\n" ); |
147 | return ret; |
148 | } |
149 | |
150 | atomic_dec(&ram->parent->refcount); |
151 | atomic_dec(&ram->engine->refcount); |
152 | pfb->ram = (void *)ram; |
153 | |
154 | if (!nouveau_mm_initialised(&pfb->vram)) { |
155 | ret = nouveau_mm_init(&pfb->vram, 0, pfb->ram->size >> 12, 1); |
156 | if (ret) |
157 | return ret; |
158 | } |
159 | |
160 | if (!nouveau_mm_initialised(&pfb->tags)) { |
161 | ret = nouveau_mm_init(&pfb->tags, 0, pfb->ram->tags ? |
162 | ++pfb->ram->tags : 0, 1); |
163 | if (ret) |
164 | return ret; |
165 | } |
166 | |
167 | nv_info(pfb, "RAM type: %s\n" , name[pfb->ram->type]); |
168 | nv_info(pfb, "RAM size: %d MiB\n" , (int)(pfb->ram->size >> 20)); |
169 | nv_info(pfb, " ZCOMP: %d tags\n" , pfb->ram->tags); |
170 | return 0; |
171 | } |
172 | |