diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nvc0.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nvc0.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nvc0.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nvc0.c new file mode 100644 index 000000000000..80bd7f5eda3d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nvc0.c @@ -0,0 +1,119 @@ +/* + * 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" + +int +nvc0_devinit_pll_set(struct nouveau_devinit *devinit, u32 type, u32 freq) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + struct nouveau_bios *bios = nouveau_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 = nva3_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: + case PLL_VPLL2: + case PLL_VPLL3: + nv_mask(priv, info.reg + 0x0c, 0x00000000, 0x00000100); + nv_wr32(priv, info.reg + 0x04, (P << 16) | (N << 8) | M); + nv_wr32(priv, info.reg + 0x10, fN << 16); + break; + default: + nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); + ret = -EINVAL; + break; + } + + return ret; +} + +static u64 +nvc0_devinit_disable(struct nouveau_devinit *devinit) +{ + struct nv50_devinit_priv *priv = (void *)devinit; + u32 r022500 = nv_rd32(priv, 0x022500); + u64 disable = 0ULL; + + if (r022500 & 0x00000001) + disable |= (1ULL << NVDEV_ENGINE_DISP); + + if (r022500 & 0x00000002) { + disable |= (1ULL << NVDEV_ENGINE_VP); + disable |= (1ULL << NVDEV_ENGINE_PPP); + } + + if (r022500 & 0x00000004) + disable |= (1ULL << NVDEV_ENGINE_BSP); + if (r022500 & 0x00000008) + disable |= (1ULL << NVDEV_ENGINE_VENC); + if (r022500 & 0x00000100) + disable |= (1ULL << NVDEV_ENGINE_COPY0); + if (r022500 & 0x00000200) + disable |= (1ULL << NVDEV_ENGINE_COPY1); + + return disable; +} + +static int +nvc0_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv50_devinit_priv *priv; + int ret; + + ret = nouveau_devinit_create(parent, engine, oclass, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + if (nv_rd32(priv, 0x022500) & 0x00000001) + priv->base.post = true; + return 0; +} + +struct nouveau_oclass * +nvc0_devinit_oclass = &(struct nouveau_devinit_impl) { + .base.handle = NV_SUBDEV(DEVINIT, 0xc0), + .base.ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvc0_devinit_ctor, + .dtor = _nouveau_devinit_dtor, + .init = nv50_devinit_init, + .fini = _nouveau_devinit_fini, + }, + .pll_set = nvc0_devinit_pll_set, + .disable = nvc0_devinit_disable, + .post = nvbios_init, +}.base; |