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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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:
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
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
25 #include "subdev/fb.h"
26 #include "subdev/bios.h"
27 #include "subdev/bios/bit.h"
30 nouveau_fb_bios_memtype(struct nouveau_bios *bios)
35 ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2;
36 if (!bit_entry(bios, 'M', &M) && M.version == 2 && M.length >= 5) {
37 u16 table = nv_ro16(bios, M.offset + 3);
38 u8 version = nv_ro08(bios, table + 0);
39 u8 header = nv_ro08(bios, table + 1);
40 u8 record = nv_ro08(bios, table + 2);
41 u8 entries = nv_ro08(bios, table + 3);
42 if (table && version == 0x10 && ramcfg < entries) {
43 u16 entry = table + header + (ramcfg * record);
44 switch (nv_ro08(bios, entry) & 0x0f) {
45 case 0: return NV_MEM_TYPE_DDR2;
46 case 1: return NV_MEM_TYPE_DDR3;
47 case 2: return NV_MEM_TYPE_GDDR3;
48 case 3: return NV_MEM_TYPE_GDDR5;
56 return NV_MEM_TYPE_UNKNOWN;
60 _nouveau_fb_fini(struct nouveau_object *object, bool suspend)
62 struct nouveau_fb *pfb = (void *)object;
65 ret = nv_ofuncs(pfb->ram)->fini(nv_object(pfb->ram), suspend);
69 return nouveau_subdev_fini(&pfb->base, suspend);
73 _nouveau_fb_init(struct nouveau_object *object)
75 struct nouveau_fb *pfb = (void *)object;
78 ret = nouveau_subdev_init(&pfb->base);
82 ret = nv_ofuncs(pfb->ram)->init(nv_object(pfb->ram));
86 for (i = 0; i < pfb->tile.regions; i++)
87 pfb->tile.prog(pfb, i, &pfb->tile.region[i]);
93 _nouveau_fb_dtor(struct nouveau_object *object)
95 struct nouveau_fb *pfb = (void *)object;
98 for (i = 0; i < pfb->tile.regions; i++)
99 pfb->tile.fini(pfb, i, &pfb->tile.region[i]);
100 nouveau_mm_fini(&pfb->tags);
101 nouveau_mm_fini(&pfb->vram);
103 nouveau_object_ref(NULL, (struct nouveau_object **)&pfb->ram);
104 nouveau_subdev_destroy(&pfb->base);
108 nouveau_fb_create_(struct nouveau_object *parent, struct nouveau_object *engine,
109 struct nouveau_oclass *oclass, struct nouveau_oclass *ramcls,
110 int length, void **pobject)
112 static const char *name[] = {
113 [NV_MEM_TYPE_UNKNOWN] = "unknown",
114 [NV_MEM_TYPE_STOLEN ] = "stolen system memory",
115 [NV_MEM_TYPE_SGRAM ] = "SGRAM",
116 [NV_MEM_TYPE_SDRAM ] = "SDRAM",
117 [NV_MEM_TYPE_DDR1 ] = "DDR1",
118 [NV_MEM_TYPE_DDR2 ] = "DDR2",
119 [NV_MEM_TYPE_DDR3 ] = "DDR3",
120 [NV_MEM_TYPE_GDDR2 ] = "GDDR2",
121 [NV_MEM_TYPE_GDDR3 ] = "GDDR3",
122 [NV_MEM_TYPE_GDDR4 ] = "GDDR4",
123 [NV_MEM_TYPE_GDDR5 ] = "GDDR5",
125 struct nouveau_object *ram;
126 struct nouveau_fb *pfb;
129 ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PFB", "fb",
135 ret = nouveau_object_ctor(nv_object(pfb), nv_object(pfb),
136 ramcls, NULL, 0, &ram);
138 nv_fatal(pfb, "error detecting memory configuration!!\n");
142 atomic_dec(&ram->parent->refcount);
143 atomic_dec(&ram->engine->refcount);
144 pfb->ram = (void *)ram;
146 if (!nouveau_mm_initialised(&pfb->vram)) {
147 ret = nouveau_mm_init(&pfb->vram, 0, pfb->ram->size >> 12, 1);
152 if (!nouveau_mm_initialised(&pfb->tags)) {
153 ret = nouveau_mm_init(&pfb->tags, 0, pfb->ram->tags ?
154 ++pfb->ram->tags : 0, 1);
159 nv_info(pfb, "RAM type: %s\n", name[pfb->ram->type]);
160 nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram->size >> 20));
161 nv_info(pfb, " ZCOMP: %d tags\n", pfb->ram->tags);