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drm/nouveau/fb/ramgt215: Restructure r111100 calculation for DDR2 

Seems to be mostly equal to DDR3 on < GT218, should improve stability for
DDR2 reclocks.

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Roy Spliet 2015-09-30 00:23:47 +01:00 committed by Ben Skeggs
parent ef6e8f4c7f
commit 0b0b78cd7d
1 changed files with 35 additions and 31 deletions
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66
drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramgt215.c
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@ -771,39 +771,43 @@ gt215_ram_calc(struct nvkm_ram *base, u32 freq)
unk71c = ram_rd32(fuc, 0x10071c) & ~0x00000100;
r111100 = ram_rd32(fuc, 0x111100) & ~0x3a800000;
if (next->bios.ramcfg_10_02_04) {
switch (ram->base.type) {
case NVKM_RAM_TYPE_DDR3:
if (device->chipset != 0xa8)
r111100 |= 0x00000004;
/* no break */
case NVKM_RAM_TYPE_DDR2:
r111100 |= 0x08000000;
break;
default:
break;
}
/* NVA8 seems to skip various bits related to ramcfg_10_02_04 */
if (device->chipset == 0xa8) {
r111100 |= 0x08000000;
if (!next->bios.ramcfg_10_02_04)
unk714 |= 0x00000010;
} else {
switch (ram->base.type) {
case NVKM_RAM_TYPE_DDR2:
r111100 |= 0x1a800000;
unk714 |= 0x00000010;
break;
case NVKM_RAM_TYPE_DDR3:
if (device->chipset == 0xa8) {
r111100 |= 0x08000000;
} else {
r111100 &= ~0x00000004;
r111100 |= 0x12800000;
if (next->bios.ramcfg_10_02_04) {
switch (ram->base.type) {
case NVKM_RAM_TYPE_DDR2:
case NVKM_RAM_TYPE_DDR3:
r111100 &= ~0x00000020;
if (next->bios.ramcfg_10_02_10)
r111100 |= 0x08000004;
else
r111100 |= 0x00000024;
break;
default:
break;
}
} else {
switch (ram->base.type) {
case NVKM_RAM_TYPE_DDR2:
case NVKM_RAM_TYPE_DDR3:
r111100 &= ~0x00000024;
r111100 |= 0x12800000;
if (next->bios.ramcfg_10_02_10)
r111100 |= 0x08000000;
unk714 |= 0x00000010;
break;
case NVKM_RAM_TYPE_GDDR3:
r111100 |= 0x30000000;
unk714 |= 0x00000020;
break;
default:
break;
}
unk714 |= 0x00000010;
break;
case NVKM_RAM_TYPE_GDDR3:
r111100 |= 0x30000000;
unk714 |= 0x00000020;
break;
default:
break;
}
}