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 #define gf110_pmu_code gk104_pmu_code 25 #define gf110_pmu_data gk104_pmu_data 26 #include "priv.h" 27 #include "fuc/gf110.fuc4.h" 28 29 #include <core/device.h> 30 #include <core/option.h> 31 #include <subdev/timer.h> 32 33 static void 34 magic_(struct nvkm_device *device, u32 ctrl, int size) 35 { 36 nvkm_wr32(device, 0x00c800, 0x00000000); 37 nvkm_wr32(device, 0x00c808, 0x00000000); 38 nvkm_wr32(device, 0x00c800, ctrl); 39 if (nv_wait(device, 0x00c800, 0x40000000, 0x40000000)) { 40 while (size--) 41 nvkm_wr32(device, 0x00c804, 0x00000000); 42 } 43 nvkm_wr32(device, 0x00c800, 0x00000000); 44 } 45 46 static void 47 magic(struct nvkm_device *device, u32 ctrl) 48 { 49 magic_(device, 0x8000a41f | ctrl, 6); 50 magic_(device, 0x80000421 | ctrl, 1); 51 } 52 53 static void 54 gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable) 55 { 56 struct nvkm_device *device = pmu->subdev.device; 57 58 nvkm_mask(device, 0x000200, 0x00001000, 0x00000000); 59 nvkm_rd32(device, 0x000200); 60 nvkm_mask(device, 0x000200, 0x08000000, 0x08000000); 61 msleep(50); 62 63 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002); 64 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 65 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 66 67 nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000); 68 msleep(50); 69 70 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000); 71 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 72 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 73 74 nvkm_mask(device, 0x000200, 0x08000000, 0x00000000); 75 nvkm_mask(device, 0x000200, 0x00001000, 0x00001000); 76 nvkm_rd32(device, 0x000200); 77 78 if (nv_device_match(device, 0x11fc, 0x17aa, 0x2211) /* Lenovo W541 */ 79 || nv_device_match(device, 0x11fc, 0x17aa, 0x221e) /* Lenovo W541 */ 80 || nvkm_boolopt(device->cfgopt, "War00C800_0", false)) { 81 nv_info(pmu, "hw bug workaround enabled\n"); 82 switch (device->chipset) { 83 case 0xe4: 84 magic(device, 0x04000000); 85 magic(device, 0x06000000); 86 magic(device, 0x0c000000); 87 magic(device, 0x0e000000); 88 break; 89 case 0xe6: 90 magic(device, 0x02000000); 91 magic(device, 0x04000000); 92 magic(device, 0x0a000000); 93 break; 94 case 0xe7: 95 magic(device, 0x02000000); 96 break; 97 default: 98 break; 99 } 100 } 101 } 102 103 struct nvkm_oclass * 104 gk104_pmu_oclass = &(struct nvkm_pmu_impl) { 105 .base.handle = NV_SUBDEV(PMU, 0xe4), 106 .base.ofuncs = &(struct nvkm_ofuncs) { 107 .ctor = _nvkm_pmu_ctor, 108 .dtor = _nvkm_pmu_dtor, 109 .init = _nvkm_pmu_init, 110 .fini = _nvkm_pmu_fini, 111 }, 112 .code.data = gk104_pmu_code, 113 .code.size = sizeof(gk104_pmu_code), 114 .data.data = gk104_pmu_data, 115 .data.size = sizeof(gk104_pmu_data), 116 .pgob = gk104_pmu_pgob, 117 }.base; 118