1 /* 2 * Copyright 2013 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "nv50.h" 25 26 #include <subdev/bios.h> 27 #include <subdev/bios/init.h> 28 #include <subdev/bios/pll.h> 29 #include <subdev/clk/pll.h> 30 31 int 32 gf100_devinit_pll_set(struct nvkm_devinit *devinit, u32 type, u32 freq) 33 { 34 struct nv50_devinit_priv *priv = (void *)devinit; 35 struct nvkm_bios *bios = nvkm_bios(priv); 36 struct nvbios_pll info; 37 int N, fN, M, P; 38 int ret; 39 40 ret = nvbios_pll_parse(bios, type, &info); 41 if (ret) 42 return ret; 43 44 ret = gt215_pll_calc(nv_subdev(devinit), &info, freq, &N, &fN, &M, &P); 45 if (ret < 0) 46 return ret; 47 48 switch (info.type) { 49 case PLL_VPLL0: 50 case PLL_VPLL1: 51 case PLL_VPLL2: 52 case PLL_VPLL3: 53 nv_mask(priv, info.reg + 0x0c, 0x00000000, 0x00000100); 54 nv_wr32(priv, info.reg + 0x04, (P << 16) | (N << 8) | M); 55 nv_wr32(priv, info.reg + 0x10, fN << 16); 56 break; 57 default: 58 nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq); 59 ret = -EINVAL; 60 break; 61 } 62 63 return ret; 64 } 65 66 static u64 67 gf100_devinit_disable(struct nvkm_devinit *devinit) 68 { 69 struct nv50_devinit_priv *priv = (void *)devinit; 70 u32 r022500 = nv_rd32(priv, 0x022500); 71 u64 disable = 0ULL; 72 73 if (r022500 & 0x00000001) 74 disable |= (1ULL << NVDEV_ENGINE_DISP); 75 76 if (r022500 & 0x00000002) { 77 disable |= (1ULL << NVDEV_ENGINE_MSPDEC); 78 disable |= (1ULL << NVDEV_ENGINE_MSPPP); 79 } 80 81 if (r022500 & 0x00000004) 82 disable |= (1ULL << NVDEV_ENGINE_MSVLD); 83 if (r022500 & 0x00000008) 84 disable |= (1ULL << NVDEV_ENGINE_MSENC); 85 if (r022500 & 0x00000100) 86 disable |= (1ULL << NVDEV_ENGINE_CE0); 87 if (r022500 & 0x00000200) 88 disable |= (1ULL << NVDEV_ENGINE_CE1); 89 90 return disable; 91 } 92 93 int 94 gf100_devinit_ctor(struct nvkm_object *parent, struct nvkm_object *engine, 95 struct nvkm_oclass *oclass, void *data, u32 size, 96 struct nvkm_object **pobject) 97 { 98 struct nvkm_devinit_impl *impl = (void *)oclass; 99 struct nv50_devinit_priv *priv; 100 u64 disable; 101 int ret; 102 103 ret = nvkm_devinit_create(parent, engine, oclass, &priv); 104 *pobject = nv_object(priv); 105 if (ret) 106 return ret; 107 108 disable = impl->disable(&priv->base); 109 if (disable & (1ULL << NVDEV_ENGINE_DISP)) 110 priv->base.post = true; 111 112 return 0; 113 } 114 115 struct nvkm_oclass * 116 gf100_devinit_oclass = &(struct nvkm_devinit_impl) { 117 .base.handle = NV_SUBDEV(DEVINIT, 0xc0), 118 .base.ofuncs = &(struct nvkm_ofuncs) { 119 .ctor = gf100_devinit_ctor, 120 .dtor = _nvkm_devinit_dtor, 121 .init = nv50_devinit_init, 122 .fini = _nvkm_devinit_fini, 123 }, 124 .pll_set = gf100_devinit_pll_set, 125 .disable = gf100_devinit_disable, 126 .post = nvbios_init, 127 }.base; 128