diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c new file mode 100644 index 000000000000..6a3e8d4efed7 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c @@ -0,0 +1,150 @@ +/* + * Copyright 2013 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Ben Skeggs + */ +#include "nv50.h" + +#include <subdev/bios.h> +#include <subdev/bios/init.h> +#include <subdev/bios/pll.h> +#include <subdev/clk/pll.h> + +int +gt215_devinit_pll_set(struct nvkm_devinit *devinit, u32 type, u32 freq) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + struct nvkm_bios *bios = nvkm_bios(priv); + struct nvbios_pll info; + int N, fN, M, P; + int ret; + + ret = nvbios_pll_parse(bios, type, &info); + if (ret) + return ret; + + ret = gt215_pll_calc(nv_subdev(devinit), &info, freq, &N, &fN, &M, &P); + if (ret < 0) + return ret; + + switch (info.type) { + case PLL_VPLL0: + case PLL_VPLL1: + nv_wr32(priv, info.reg + 0, 0x50000610); + nv_mask(priv, info.reg + 4, 0x003fffff, + (P << 16) | (M << 8) | N); + nv_wr32(priv, info.reg + 8, fN); + break; + default: + nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); + ret = -EINVAL; + break; + } + + return ret; +} + +static u64 +gt215_devinit_disable(struct nvkm_devinit *devinit) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + u32 r001540 = nv_rd32(priv, 0x001540); + u32 r00154c = nv_rd32(priv, 0x00154c); + u64 disable = 0ULL; + + if (!(r001540 & 0x40000000)) { + disable |= (1ULL << NVDEV_ENGINE_MSPDEC); + disable |= (1ULL << NVDEV_ENGINE_MSPPP); + } + + if (!(r00154c & 0x00000004)) + disable |= (1ULL << NVDEV_ENGINE_DISP); + if (!(r00154c & 0x00000020)) + disable |= (1ULL << NVDEV_ENGINE_MSVLD); + if (!(r00154c & 0x00000200)) + disable |= (1ULL << NVDEV_ENGINE_CE0); + + return disable; +} + +static u32 +gt215_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 +gt215_devinit_mmio(struct nvkm_devinit *devinit, u32 addr) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + u32 *mmio = gt215_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 nvkm_oclass * +gt215_devinit_oclass = &(struct nvkm_devinit_impl) { + .base.handle = NV_SUBDEV(DEVINIT, 0xa3), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = nv50_devinit_ctor, + .dtor = _nvkm_devinit_dtor, + .init = nv50_devinit_init, + .fini = _nvkm_devinit_fini, + }, + .pll_set = gt215_devinit_pll_set, + .disable = gt215_devinit_disable, + .mmio = gt215_devinit_mmio, + .post = nvbios_init, +}.base; |