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 gf119_pmu_code gk104_pmu_code 25 #define gf119_pmu_data gk104_pmu_data 26 #include "priv.h" 27 #include "fuc/gf119.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 nvkm_msec(device, 2000, 40 if (nvkm_rd32(device, 0x00c800) & 0x40000000) { 41 while (size--) 42 nvkm_wr32(device, 0x00c804, 0x00000000); 43 break; 44 } 45 ); 46 nvkm_wr32(device, 0x00c800, 0x00000000); 47 } 48 49 static void 50 magic(struct nvkm_device *device, u32 ctrl) 51 { 52 magic_(device, 0x8000a41f | ctrl, 6); 53 magic_(device, 0x80000421 | ctrl, 1); 54 } 55 56 static void 57 gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable) 58 { 59 struct nvkm_device *device = pmu->subdev.device; 60 61 nvkm_mask(device, 0x000200, 0x00001000, 0x00000000); 62 nvkm_rd32(device, 0x000200); 63 nvkm_mask(device, 0x000200, 0x08000000, 0x08000000); 64 msleep(50); 65 66 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002); 67 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 68 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 69 70 nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000); 71 msleep(50); 72 73 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000); 74 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 75 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 76 77 nvkm_mask(device, 0x000200, 0x08000000, 0x00000000); 78 nvkm_mask(device, 0x000200, 0x00001000, 0x00001000); 79 nvkm_rd32(device, 0x000200); 80 81 if (nv_device_match(device, 0x11fc, 0x17aa, 0x2211) /* Lenovo W541 */ 82 || nv_device_match(device, 0x11fc, 0x17aa, 0x221e) /* Lenovo W541 */ 83 || nvkm_boolopt(device->cfgopt, "War00C800_0", false)) { 84 nvkm_info(&pmu->subdev, "hw bug workaround enabled\n"); 85 switch (device->chipset) { 86 case 0xe4: 87 magic(device, 0x04000000); 88 magic(device, 0x06000000); 89 magic(device, 0x0c000000); 90 magic(device, 0x0e000000); 91 break; 92 case 0xe6: 93 magic(device, 0x02000000); 94 magic(device, 0x04000000); 95 magic(device, 0x0a000000); 96 break; 97 case 0xe7: 98 magic(device, 0x02000000); 99 break; 100 default: 101 break; 102 } 103 } 104 } 105 106 static const struct nvkm_pmu_func 107 gk104_pmu = { 108 .code.data = gk104_pmu_code, 109 .code.size = sizeof(gk104_pmu_code), 110 .data.data = gk104_pmu_data, 111 .data.size = sizeof(gk104_pmu_data), 112 .pgob = gk104_pmu_pgob, 113 }; 114 115 int 116 gk104_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu) 117 { 118 return nvkm_pmu_new_(&gk104_pmu, device, index, ppmu); 119 } 120