From 4d9faafa0fdda2f4ba04b5cdffc0af1bab2312f4 Mon Sep 17 00:00:00 2001 From: Roy Spliet Date: Wed, 30 Sep 2015 00:23:50 +0100 Subject: [PATCH] drm/nouveau/fb/ramnv50: Script changes for G94 and up 10053c is not even read on some cards, and I have no idea exactly what the criteria are. Likely NVIDIA pre-scans the VBIOS and in their driver disables all features that are never used. The practical effect should be the same as this implementation though. Signed-off-by: Roy Spliet Tested-by: Pierre Moreau Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c | 36 ++++++++++++++++++++---- 1 file changed, 30 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c index 1c6ae6b..d98d306 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c @@ -302,6 +302,9 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq) return ret; } + if (subdev->device->chipset <= 0x96 && !next->bios.ramcfg_00_03_02) + ram_mask(hwsq, 0x100710, 0x00000200, 0x00000000); + /* Always disable this bit during reclock */ ram_mask(hwsq, 0x100200, 0x00000800, 0x00000000); @@ -353,8 +356,11 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq) next->bios.rammap_00_16_40 << 14); ram_mask(hwsq, 0x00400c, 0x0000ffff, (N1 << 8) | M1); ram_mask(hwsq, 0x004008, 0x91ff0000, r004008); - if (subdev->device->chipset >= 0x96) + + /* XXX: GDDR3 only? */ + if (subdev->device->chipset >= 0x92) ram_wr32(hwsq, 0x100da0, r100da0); + nv50_ram_gpio(hwsq, 0x18, !next->bios.ramcfg_FBVDDQ); ram_nsec(hwsq, 64000); /*XXX*/ ram_nsec(hwsq, 32000); /*XXX*/ @@ -397,19 +403,33 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq) ram_mask(hwsq, 0x100200, 0x00001000, !next->bios.ramcfg_00_04_02 << 12); /* XXX: A lot of this could be "chipset"/"ram type" specific stuff */ - unk710 = ram_rd32(hwsq, 0x100710) & ~0x00000101; + unk710 = ram_rd32(hwsq, 0x100710) & ~0x00000100; unk714 = ram_rd32(hwsq, 0x100714) & ~0xf0000020; unk718 = ram_rd32(hwsq, 0x100718) & ~0x00000100; unk71c = ram_rd32(hwsq, 0x10071c) & ~0x00000100; + if (subdev->device->chipset <= 0x96) { + unk710 &= ~0x0000006e; + unk714 &= ~0x00000100; + + if (!next->bios.ramcfg_00_03_08) + unk710 |= 0x00000060; + if (!next->bios.ramcfg_FBVDDQ) + unk714 |= 0x00000100; + if ( next->bios.ramcfg_00_04_04) + unk710 |= 0x0000000e; + } else { + unk710 &= ~0x00000001; + + if (!next->bios.ramcfg_00_03_08) + unk710 |= 0x00000001; + } if ( next->bios.ramcfg_00_03_01) unk71c |= 0x00000100; if ( next->bios.ramcfg_00_03_02) unk710 |= 0x00000100; - if (!next->bios.ramcfg_00_03_08) { - unk710 |= 0x1; - unk714 |= 0x20; - } + if (!next->bios.ramcfg_00_03_08) + unk714 |= 0x00000020; if ( next->bios.ramcfg_00_04_04) unk714 |= 0x70000000; if ( next->bios.ramcfg_00_04_20) @@ -420,6 +440,8 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq) ram_mask(hwsq, 0x100718, 0xffffffff, unk718); ram_mask(hwsq, 0x100710, 0xffffffff, unk710); + /* XXX: G94 does not even test these regs in trace. Harmless we do it, + * but why is it omitted? */ if (next->bios.rammap_00_16_20) { ram_wr32(hwsq, 0x1005a0, next->bios.ramcfg_00_07 << 16 | next->bios.ramcfg_00_06 << 8 | @@ -450,6 +472,8 @@ nv50_ram_calc(struct nvkm_ram *base, u32 freq) ram_mask(hwsq, 0x004008, 0x00004000, 0x00000000); if (next->bios.ramcfg_00_03_02) ram_mask(hwsq, 0x10021c, 0x00010000, 0x00010000); + if (subdev->device->chipset <= 0x96 && next->bios.ramcfg_00_03_02) + ram_mask(hwsq, 0x100710, 0x00000200, 0x00000200); return 0; } -- 2.7.4