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/*
* Copyright 2012 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*/
#include "subdev/fb.h"
#include "subdev/bios.h"
#include "subdev/bios/bit.h"
int
nouveau_fb_bios_memtype(struct nouveau_bios *bios)
{
struct bit_entry M;
u8 ramcfg;
ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2;
if (!bit_entry(bios, 'M', &M) && M.version == 2 && M.length >= 5) {
u16 table = nv_ro16(bios, M.offset + 3);
u8 version = nv_ro08(bios, table + 0);
u8 header = nv_ro08(bios, table + 1);
u8 record = nv_ro08(bios, table + 2);
u8 entries = nv_ro08(bios, table + 3);
if (table && version == 0x10 && ramcfg < entries) {
u16 entry = table + header + (ramcfg * record);
switch (nv_ro08(bios, entry) & 0x0f) {
case 0: return NV_MEM_TYPE_DDR2;
case 1: return NV_MEM_TYPE_DDR3;
case 2: return NV_MEM_TYPE_GDDR3;
case 3: return NV_MEM_TYPE_GDDR5;
default:
break;
}
}
}
return NV_MEM_TYPE_UNKNOWN;
}
int
nouveau_fb_preinit(struct nouveau_fb *pfb)
{
static const char *name[] = {
[NV_MEM_TYPE_UNKNOWN] = "unknown",
[NV_MEM_TYPE_STOLEN ] = "stolen system memory",
[NV_MEM_TYPE_SGRAM ] = "SGRAM",
[NV_MEM_TYPE_SDRAM ] = "SDRAM",
[NV_MEM_TYPE_DDR1 ] = "DDR1",
[NV_MEM_TYPE_DDR2 ] = "DDR2",
[NV_MEM_TYPE_DDR3 ] = "DDR3",
[NV_MEM_TYPE_GDDR2 ] = "GDDR2",
[NV_MEM_TYPE_GDDR3 ] = "GDDR3",
[NV_MEM_TYPE_GDDR4 ] = "GDDR4",
[NV_MEM_TYPE_GDDR5 ] = "GDDR5",
};
int ret, tags;
tags = pfb->ram.init(pfb);
if (tags < 0 || !pfb->ram.size) {
nv_fatal(pfb, "error detecting memory configuration!!\n");
return (tags < 0) ? tags : -ERANGE;
}
if (!nouveau_mm_initialised(&pfb->vram)) {
ret = nouveau_mm_init(&pfb->vram, 0, pfb->ram.size >> 12, 1);
if (ret)
return ret;
}
if (!nouveau_mm_initialised(&pfb->tags) && tags) {
ret = nouveau_mm_init(&pfb->tags, 0, ++tags, 1);
if (ret)
return ret;
}
nv_info(pfb, "RAM type: %s\n", name[pfb->ram.type]);
nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram.size >> 20));
nv_info(pfb, " ZCOMP: %d tags\n", tags);
return 0;
}
void
nouveau_fb_destroy(struct nouveau_fb *pfb)
{
int i;
for (i = 0; i < pfb->tile.regions; i++)
pfb->tile.fini(pfb, i, &pfb->tile.region[i]);
nouveau_mm_fini(&pfb->tags);
nouveau_mm_fini(&pfb->vram);
nouveau_subdev_destroy(&pfb->base);
}
void
_nouveau_fb_dtor(struct nouveau_object *object)
{
struct nouveau_fb *pfb = (void *)object;
nouveau_fb_destroy(pfb);
}
int
nouveau_fb_init(struct nouveau_fb *pfb)
{
int ret, i;
ret = nouveau_subdev_init(&pfb->base);
if (ret)
return ret;
for (i = 0; i < pfb->tile.regions; i++)
pfb->tile.prog(pfb, i, &pfb->tile.region[i]);
return 0;
}
int
_nouveau_fb_init(struct nouveau_object *object)
{
struct nouveau_fb *pfb = (void *)object;
return nouveau_fb_init(pfb);
}
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