diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c b/drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c index 6dedf1dad7f7..006cf348bda7 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c +++ b/drivers/gpu/drm/nouveau/core/subdev/devinit/nva3.c @@ -81,6 +81,55 @@ nva3_devinit_disable(struct nouveau_devinit *devinit) return disable; } +static u32 +nva3_devinit_mmio_part[] = { + 0x100720, 0x1008bc, 4, + 0x100a20, 0x100adc, 4, + 0x100d80, 0x100ddc, 4, + 0x110000, 0x110f9c, 4, + 0x111000, 0x11103c, 8, + 0x111080, 0x1110fc, 4, + 0x111120, 0x1111fc, 4, + 0x111300, 0x1114bc, 4, + 0, +}; + +static u32 +nva3_devinit_mmio(struct nouveau_devinit *devinit, u32 addr) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + u32 *mmio = nva3_devinit_mmio_part; + + /* the init tables on some boards have INIT_RAM_RESTRICT_ZM_REG_GROUP + * instructions which touch registers that may not even exist on + * some configurations (Quadro 400), which causes the register + * interface to screw up for some amount of time after attempting to + * write to one of these, and results in all sorts of things going + * horribly wrong. + * + * the binary driver avoids touching these registers at all, however, + * the video bios doesn't care and does what the scripts say. it's + * presumed that the io-port access to priv registers isn't effected + * by the screw-up bug mentioned above. + * + * really, a new opcode should've been invented to handle these + * requirements, but whatever, it's too late for that now. + */ + while (mmio[0]) { + if (addr >= mmio[0] && addr <= mmio[1]) { + u32 part = (addr / mmio[2]) & 7; + if (!priv->r001540) + priv->r001540 = nv_rd32(priv, 0x001540); + if (part >= hweight8((priv->r001540 >> 16) & 0xff)) + return ~0; + return addr; + } + mmio += 3; + } + + return addr; +} + struct nouveau_oclass * nva3_devinit_oclass = &(struct nouveau_devinit_impl) { .base.handle = NV_SUBDEV(DEVINIT, 0xa3), @@ -92,4 +141,5 @@ nva3_devinit_oclass = &(struct nouveau_devinit_impl) { }, .pll_set = nva3_devinit_pll_set, .disable = nva3_devinit_disable, + .mmio = nva3_devinit_mmio, }.base; |