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 29 u64 30 gm107_devinit_disable(struct nvkm_devinit *devinit) 31 { 32 struct nv50_devinit_priv *priv = (void *)devinit; 33 u32 r021c00 = nv_rd32(priv, 0x021c00); 34 u32 r021c04 = nv_rd32(priv, 0x021c04); 35 u64 disable = 0ULL; 36 37 if (r021c00 & 0x00000001) 38 disable |= (1ULL << NVDEV_ENGINE_CE0); 39 if (r021c00 & 0x00000004) 40 disable |= (1ULL << NVDEV_ENGINE_CE2); 41 if (r021c04 & 0x00000001) 42 disable |= (1ULL << NVDEV_ENGINE_DISP); 43 44 return disable; 45 } 46 47 struct nvkm_oclass * 48 gm107_devinit_oclass = &(struct nvkm_devinit_impl) { 49 .base.handle = NV_SUBDEV(DEVINIT, 0x07), 50 .base.ofuncs = &(struct nvkm_ofuncs) { 51 .ctor = nv50_devinit_ctor, 52 .dtor = _nvkm_devinit_dtor, 53 .init = nv50_devinit_init, 54 .fini = _nvkm_devinit_fini, 55 }, 56 .pll_set = gf100_devinit_pll_set, 57 .disable = gm107_devinit_disable, 58 .post = nvbios_init, 59 }.base; 60