2 * Copyright 2012 Red Hat Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
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20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include <subdev/bios.h>
26 #include <subdev/bios/bit.h>
31 nouveau_fb_bios_memtype(struct nouveau_bios *bios)
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;
57 return NV_MEM_TYPE_UNKNOWN;
61 _nouveau_fb_fini(struct nouveau_object *object, bool suspend)
63 struct nouveau_fb *pfb = (void *)object;
66 ret = nv_ofuncs(pfb->ram)->fini(nv_object(pfb->ram), suspend);
70 return nouveau_subdev_fini(&pfb->base, suspend);
74 _nouveau_fb_init(struct nouveau_object *object)
76 struct nouveau_fb *pfb = (void *)object;
79 ret = nouveau_subdev_init(&pfb->base);
83 ret = nv_ofuncs(pfb->ram)->init(nv_object(pfb->ram));
87 for (i = 0; i < pfb->tile.regions; i++)
88 pfb->tile.prog(pfb, i, &pfb->tile.region[i]);
94 _nouveau_fb_dtor(struct nouveau_object *object)
96 struct nouveau_fb *pfb = (void *)object;
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);
104 nouveau_object_ref(NULL, (struct nouveau_object **)&pfb->ram);
105 nouveau_subdev_destroy(&pfb->base);
109 nouveau_fb_create_(struct nouveau_object *parent, struct nouveau_object *engine,
110 struct nouveau_oclass *oclass, int length, void **pobject)
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",
126 struct nouveau_object *ram;
127 struct nouveau_fb *pfb;
130 ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PFB", "fb",
136 ret = nouveau_object_ctor(nv_object(pfb), nv_object(pfb),
137 impl->ram, NULL, 0, &ram);
139 nv_fatal(pfb, "error detecting memory configuration!!\n");
143 atomic_dec(&ram->parent->refcount);
144 atomic_dec(&ram->engine->refcount);
145 pfb->ram = (void *)ram;
147 if (!nouveau_mm_initialised(&pfb->vram)) {
148 ret = nouveau_mm_init(&pfb->vram, 0, pfb->ram->size >> 12, 1);
153 if (!nouveau_mm_initialised(&pfb->tags)) {
154 ret = nouveau_mm_init(&pfb->tags, 0, pfb->ram->tags ?
155 ++pfb->ram->tags : 0, 1);
160 nv_info(pfb, "RAM type: %s\n", name[pfb->ram->type]);
161 nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram->size >> 20));
162 nv_info(pfb, " ZCOMP: %d tags\n", pfb->ram->tags);