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