From 82a74fd2936afd97e83cf195c41dc372ebe9fc84 Mon Sep 17 00:00:00 2001 From: Roy Spliet Date: Sun, 24 May 2015 10:44:00 +0200 Subject: [PATCH] drm/nouveau/fb/ramnv50: GDDR3 script for NVA0 This looks surprisingly similar to scripts on earlier cards as well but they don't seem to work just yet. That... and I don't have any, which makes it a tough job to reverse engineer. Signed-off-by: Roy Spliet Signed-off-by: Ben Skeggs --- .../gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c | 129 ++++++++++++++---- 1 file changed, 104 insertions(+), 25 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c index 91e9cff7a645..66db0a4e2538 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv50.c @@ -39,10 +39,19 @@ struct nv50_ramseq { struct hwsq_reg r_0x004008; struct hwsq_reg r_0x00400c; struct hwsq_reg r_0x00c040; + struct hwsq_reg r_0x100200; struct hwsq_reg r_0x100210; + struct hwsq_reg r_0x10021c; struct hwsq_reg r_0x1002d0; struct hwsq_reg r_0x1002d4; struct hwsq_reg r_0x1002dc; + struct hwsq_reg r_0x10053c; + struct hwsq_reg r_0x1005a0; + struct hwsq_reg r_0x1005a4; + struct hwsq_reg r_0x100710; + struct hwsq_reg r_0x100714; + struct hwsq_reg r_0x100718; + struct hwsq_reg r_0x10071c; struct hwsq_reg r_0x100da0; struct hwsq_reg r_0x100e20; struct hwsq_reg r_0x100e24; @@ -135,7 +144,13 @@ nv50_ram_timing_calc(struct nvkm_fb *pfb, u32 *timing) } #undef T -#define QFX5800NVA0 1 +static void +nvkm_sddr2_dll_reset(struct nv50_ramseq *hwsq) +{ + ram_mask(hwsq, mr[0], 0x100, 0x100); + ram_mask(hwsq, mr[0], 0x100, 0x000); + ram_nsec(hwsq, 24000); +} static int nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) @@ -148,7 +163,7 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) struct nvkm_ram_data *next; u8 ver, hdr, cnt, len, strap, size; u32 data; - u32 r100da0; + u32 r100da0, r004008, unk710, unk714, unk718, unk71c; int N1, M1, N2, M2, P; int ret, i; u32 timing[9]; @@ -220,12 +235,8 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) if (ret) return ret; - /* XXX: 750MHz seems rather arbitrary */ - if (freq <= 750000) { - r100da0 = 0x00000010; - } else { - r100da0 = 0x00000000; - } + /* Always disable this bit during reclock */ + ram_mask(hwsq, 0x100200, 0x00000800, 0x00000000); ram_wait(hwsq, 0x01, 0x00); /* wait for !vblank */ ram_wait(hwsq, 0x01, 0x01); /* wait for vblank */ @@ -234,6 +245,7 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) ram_nsec(hwsq, 8000); ram_setf(hwsq, 0x10, 0x00); /* disable fb */ ram_wait(hwsq, 0x00, 0x01); /* wait for fb disabled */ + ram_nsec(hwsq, 2000); ram_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge */ ram_wr32(hwsq, 0x1002d0, 0x00000001); /* refresh */ @@ -253,18 +265,33 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) if (ret < 0) return ret; + /* XXX: 750MHz seems rather arbitrary */ + if (freq <= 750000) { + r100da0 = 0x00000010; + r004008 = 0x90000000; + } else { + r100da0 = 0x00000000; + r004008 = 0x80000000; + } + + r004008 |= (mpll.bias_p << 19) | (P << 22) | (P << 16); + ram_mask(hwsq, 0x00c040, 0xc000c000, 0x0000c000); - ram_mask(hwsq, 0x004008, 0x00000200, 0x00000200); + /* XXX: Is rammap_00_16_40 the DLL bit we've seen in GT215? Why does + * it have a different rammap bit from DLLoff? */ + ram_mask(hwsq, 0x004008, 0x00004200, 0x00000200 | + next->bios.rammap_00_16_40 << 14); ram_mask(hwsq, 0x00400c, 0x0000ffff, (N1 << 8) | M1); - ram_mask(hwsq, 0x004008, 0x81ff0000, 0x80000000 | (mpll.bias_p << 19) | - (P << 22) | (P << 16)); + ram_mask(hwsq, 0x004008, 0x91ff0000, r004008); + if (nv_device(pfb)->chipset >= 0x96) + ram_wr32(hwsq, 0x100da0, r100da0); + ram_nsec(hwsq, 64000); /*XXX*/ + ram_nsec(hwsq, 32000); /*XXX*/ - if (nv_device(pfb)->chipset == 0xa0) - ram_wr32(hwsq, 0x100da0, r100da0); /*XXX: here?*/ - ram_nsec(hwsq, 96000); /*XXX*/ ram_mask(hwsq, 0x004008, 0x00002200, 0x00002000); ram_wr32(hwsq, 0x1002dc, 0x00000000); /* disable self-refresh */ + ram_wr32(hwsq, 0x1002d4, 0x00000001); /* disable self-refresh */ ram_wr32(hwsq, 0x100210, 0x80000000); /* enable auto-refresh */ ram_nsec(hwsq, 12000); @@ -275,9 +302,10 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) ram_mask(hwsq, mr[0], 0x000, 0x000); break; case NV_MEM_TYPE_GDDR3: - ram_mask(hwsq, mr[2], 0x000, 0x000); + ram_nuke(hwsq, mr[1]); /* force update */ + ram_wr32(hwsq, mr[1], ram->base.mr[1]); ram_nuke(hwsq, mr[0]); /* force update */ - ram_mask(hwsq, mr[0], 0x000, 0x000); + ram_wr32(hwsq, mr[0], ram->base.mr[0]); break; default: break; @@ -293,20 +321,62 @@ nv50_ram_calc(struct nvkm_fb *pfb, u32 freq) ram_mask(hwsq, timing[4], 0xffffffff, timing[4]); ram_mask(hwsq, timing[5], 0xffffffff, timing[5]); -#if QFX5800NVA0 - ram_nuke(hwsq, 0x100e24); - ram_mask(hwsq, 0x100e24, 0x00000000, 0x00000000); - ram_nuke(hwsq, 0x100e20); - ram_mask(hwsq, 0x100e20, 0x00000000, 0x00000000); -#endif + if (!next->bios.ramcfg_00_03_02) + ram_mask(hwsq, 0x10021c, 0x00010000, 0x00000000); + 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; + unk714 = ram_rd32(hwsq, 0x100714) & ~0xf0000020; + unk718 = ram_rd32(hwsq, 0x100718) & ~0x00000100; + unk71c = ram_rd32(hwsq, 0x10071c) & ~0x00000100; + + 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_04_04) + unk714 |= 0x70000000; + if ( next->bios.ramcfg_00_04_20) + unk718 |= 0x00000100; + + ram_mask(hwsq, 0x100714, 0xffffffff, unk714); + ram_mask(hwsq, 0x10071c, 0xffffffff, unk71c); + ram_mask(hwsq, 0x100718, 0xffffffff, unk718); + ram_mask(hwsq, 0x100710, 0xffffffff, unk710); + + if (next->bios.rammap_00_16_20) { + ram_wr32(hwsq, 0x1005a0, next->bios.ramcfg_00_07 << 16 | + next->bios.ramcfg_00_06 << 8 | + next->bios.ramcfg_00_05); + ram_wr32(hwsq, 0x1005a4, next->bios.ramcfg_00_09 << 8 | + next->bios.ramcfg_00_08); + ram_mask(hwsq, 0x10053c, 0x00001000, 0x00000000); + } else { + ram_mask(hwsq, 0x10053c, 0x00001000, 0x00001000); + } + ram_mask(hwsq, mr[1], 0xffffffff, ram->base.mr[1]); - ram_mask(hwsq, mr[0], 0x100, 0x100); - ram_mask(hwsq, mr[0], 0x100, 0x000); + /* Reset DLL */ + if (!next->bios.ramcfg_DLLoff) + nvkm_sddr2_dll_reset(hwsq); ram_setf(hwsq, 0x10, 0x01); /* enable fb */ ram_wait(hwsq, 0x00, 0x00); /* wait for fb enabled */ ram_wr32(hwsq, 0x611200, 0x00003330); ram_wr32(hwsq, 0x002504, 0x00000000); /* un-block fifo */ + + if (next->bios.rammap_00_17_02) + ram_mask(hwsq, 0x100200, 0x00000800, 0x00000800); + if (!next->bios.rammap_00_16_40) + ram_mask(hwsq, 0x004008, 0x00004000, 0x00000000); + if (next->bios.ramcfg_00_03_02) + ram_mask(hwsq, 0x10021c, 0x00010000, 0x00010000); + return 0; } @@ -522,12 +592,12 @@ nv50_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine, return ret; switch (ram->base.type) { - case NV_MEM_TYPE_DDR2: case NV_MEM_TYPE_GDDR3: ram->base.calc = nv50_ram_calc; ram->base.prog = nv50_ram_prog; ram->base.tidy = nv50_ram_tidy; break; + case NV_MEM_TYPE_DDR2: default: nv_warn(ram, "reclocking of this ram type unsupported\n"); return 0; @@ -537,10 +607,19 @@ nv50_ram_ctor(struct nvkm_object *parent, struct nvkm_object *engine, ram->hwsq.r_0x00c040 = hwsq_reg(0x00c040); ram->hwsq.r_0x004008 = hwsq_reg(0x004008); ram->hwsq.r_0x00400c = hwsq_reg(0x00400c); + ram->hwsq.r_0x100200 = hwsq_reg(0x100200); ram->hwsq.r_0x100210 = hwsq_reg(0x100210); + ram->hwsq.r_0x10021c = hwsq_reg(0x10021c); ram->hwsq.r_0x1002d0 = hwsq_reg(0x1002d0); ram->hwsq.r_0x1002d4 = hwsq_reg(0x1002d4); ram->hwsq.r_0x1002dc = hwsq_reg(0x1002dc); + ram->hwsq.r_0x10053c = hwsq_reg(0x10053c); + ram->hwsq.r_0x1005a0 = hwsq_reg(0x1005a0); + ram->hwsq.r_0x1005a4 = hwsq_reg(0x1005a4); + ram->hwsq.r_0x100710 = hwsq_reg(0x100710); + ram->hwsq.r_0x100714 = hwsq_reg(0x100714); + ram->hwsq.r_0x100718 = hwsq_reg(0x100718); + ram->hwsq.r_0x10071c = hwsq_reg(0x10071c); ram->hwsq.r_0x100da0 = hwsq_stride(0x100da0, 4, ram->base.part_mask); ram->hwsq.r_0x100e20 = hwsq_reg(0x100e20); ram->hwsq.r_0x100e24 = hwsq_reg(0x100e24); -- 2.30.2