diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c | 72 |
1 files changed, 49 insertions, 23 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c b/drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c index 34f9605ffee6..66fe959b4f74 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/gddr5.c @@ -25,35 +25,44 @@ #include <subdev/bios.h> #include "priv.h" +/* binary driver only executes this path if the condition (a) is true + * for any configuration (combination of rammap+ramcfg+timing) that + * can be reached on a given card. for now, we will execute the branch + * unconditionally in the hope that a "false everywhere" in the bios + * tables doesn't actually mean "don't touch this". + */ +#define NOTE00(a) 1 + int -nouveau_gddr5_calc(struct nouveau_ram *ram) +nouveau_gddr5_calc(struct nouveau_ram *ram, bool nuts) { - struct nouveau_bios *bios = nouveau_bios(ram); - int pd, lf, xd, vh, vr, vo; - int WL, CL, WR, at, dt, ds; + int pd, lf, xd, vh, vr, vo, l3; + int WL, CL, WR, at[2], dt, ds; int rq = ram->freq < 1000000; /* XXX */ - switch (!!ram->ramcfg.data * ram->ramcfg.version) { + switch (ram->ramcfg.version) { case 0x11: - pd = (nv_ro08(bios, ram->ramcfg.data + 0x01) & 0x80) >> 7; - lf = (nv_ro08(bios, ram->ramcfg.data + 0x01) & 0x40) >> 6; - xd = !(nv_ro08(bios, ram->ramcfg.data + 0x01) & 0x20); - vh = (nv_ro08(bios, ram->ramcfg.data + 0x02) & 0x10) >> 4; - vr = (nv_ro08(bios, ram->ramcfg.data + 0x02) & 0x04) >> 2; - vo = nv_ro08(bios, ram->ramcfg.data + 0x06) & 0xff; + pd = ram->next->bios.ramcfg_11_01_80; + lf = ram->next->bios.ramcfg_11_01_40; + xd = !ram->next->bios.ramcfg_11_01_20; + vh = ram->next->bios.ramcfg_11_02_10; + vr = ram->next->bios.ramcfg_11_02_04; + vo = ram->next->bios.ramcfg_11_06; + l3 = !ram->next->bios.ramcfg_11_07_02; break; default: return -ENOSYS; } - switch (!!ram->timing.data * ram->timing.version) { + switch (ram->timing.version) { case 0x20: - WL = (nv_ro16(bios, ram->timing.data + 0x04) & 0x0f80) >> 7; - CL = nv_ro08(bios, ram->timing.data + 0x04) & 0x1f; - WR = nv_ro08(bios, ram->timing.data + 0x0a) & 0x7f; - at = (nv_ro08(bios, ram->timing.data + 0x2e) & 0xc0) >> 6; - dt = nv_ro08(bios, ram->timing.data + 0x2e) & 0x03; - ds = nv_ro08(bios, ram->timing.data + 0x2f) & 0x03; + WL = (ram->next->bios.timing[1] & 0x00000f80) >> 7; + CL = (ram->next->bios.timing[1] & 0x0000001f); + WR = (ram->next->bios.timing[2] & 0x007f0000) >> 16; + at[0] = ram->next->bios.timing_20_2e_c0; + at[1] = ram->next->bios.timing_20_2e_30; + dt = ram->next->bios.timing_20_2e_03; + ds = ram->next->bios.timing_20_2f_03; break; default: return -ENOSYS; @@ -71,13 +80,25 @@ nouveau_gddr5_calc(struct nouveau_ram *ram) ram->mr[1] &= ~0x0bf; ram->mr[1] |= (xd & 0x01) << 7; - ram->mr[1] |= (at & 0x03) << 4; + ram->mr[1] |= (at[0] & 0x03) << 4; ram->mr[1] |= (dt & 0x03) << 2; ram->mr[1] |= (ds & 0x03) << 0; + /* this seems wrong, alternate field used for the broadcast + * on nuts vs non-nuts configs.. meh, it matches for now. + */ + ram->mr1_nuts = ram->mr[1]; + if (nuts) { + ram->mr[1] &= ~0x030; + ram->mr[1] |= (at[1] & 0x03) << 4; + } + ram->mr[3] &= ~0x020; ram->mr[3] |= (rq & 0x01) << 5; + ram->mr[5] &= ~0x004; + ram->mr[5] |= (l3 << 2); + if (!vo) vo = (ram->mr[6] & 0xff0) >> 4; if (ram->mr[6] & 0x001) @@ -86,11 +107,16 @@ nouveau_gddr5_calc(struct nouveau_ram *ram) ram->mr[6] |= (vo & 0xff) << 4; ram->mr[6] |= (pd & 0x01) << 0; - if (!(ram->mr[7] & 0x100)) - vr = 0; /* binary driver does this.. bug? */ - ram->mr[7] &= ~0x188; - ram->mr[7] |= (vr & 0x01) << 8; + if (NOTE00(vr)) { + ram->mr[7] &= ~0x300; + ram->mr[7] |= (vr & 0x03) << 8; + } + ram->mr[7] &= ~0x088; ram->mr[7] |= (vh & 0x01) << 7; ram->mr[7] |= (lf & 0x01) << 3; + + ram->mr[8] &= ~0x003; + ram->mr[8] |= (WR & 0x10) >> 3; + ram->mr[8] |= (CL & 0x10) >> 4; return 0; } |