u8
nvbios_ramcfg_index(struct nouveau_subdev *subdev)
{
struct nouveau_bios *bios = nouveau_bios(subdev);
u8 strap = nvbios_ramcfg_strap(subdev);
u32 xlat = 0x00000000;
struct bit_entry bit_M;
struct nvbios_M0203E M0203E;
u8 ver, hdr;
if (!bit_entry(bios, 'M', &bit_M)) {
if (bit_M.version == 1 && bit_M.length >= 5)
xlat = nv_ro16(bios, bit_M.offset + 3);
if (bit_M.version == 2 && bit_M.length >= 3) {
/*XXX: is M ever shorter than this?
* if not - what is xlat used for now?
* also - sigh..
*/
if (bit_M.length >= 7 &&
nvbios_M0203Em(bios, strap, &ver, &hdr, &M0203E))
return M0203E.group;
xlat = nv_ro16(bios, bit_M.offset + 1);
}
}
if (xlat)
strap = nv_ro08(bios, xlat + strap);
return strap;
}
int
nouveau_fb_bios_memtype(struct nouveau_bios *bios)
{
const u8 ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2;
struct nvbios_M0203E M0203E;
u8 ver, hdr;
if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
switch (M0203E.type) {
case M0203E_TYPE_DDR2 : return NV_MEM_TYPE_DDR2;
case M0203E_TYPE_DDR3 : return NV_MEM_TYPE_DDR3;
case M0203E_TYPE_GDDR3: return NV_MEM_TYPE_GDDR3;
case M0203E_TYPE_GDDR5: return NV_MEM_TYPE_GDDR5;
default:
nv_warn(bios, "M0203E type %02x\n", M0203E.type);
return NV_MEM_TYPE_UNKNOWN;
}
}
nv_warn(bios, "M0203E not matched!\n");
return NV_MEM_TYPE_UNKNOWN;
}
int
nvkm_fb_bios_memtype(struct nvkm_bios *bios)
{
struct nvkm_subdev *subdev = &bios->subdev;
struct nvkm_device *device = subdev->device;
const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
struct nvbios_M0203E M0203E;
u8 ver, hdr;
if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
switch (M0203E.type) {
case M0203E_TYPE_DDR2 : return NVKM_RAM_TYPE_DDR2;
case M0203E_TYPE_DDR3 : return NVKM_RAM_TYPE_DDR3;
case M0203E_TYPE_GDDR3: return NVKM_RAM_TYPE_GDDR3;
case M0203E_TYPE_GDDR5: return NVKM_RAM_TYPE_GDDR5;
default:
nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
return NVKM_RAM_TYPE_UNKNOWN;
}
}
nvkm_warn(subdev, "M0203E not matched!\n");
return NVKM_RAM_TYPE_UNKNOWN;
}