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/option.h> 30 #include <subdev/timer.h> 31 32 static void 33 magic_(struct nvkm_device *device, u32 ctrl, int size) 34 { 35 nvkm_wr32(device, 0x00c800, 0x00000000); 36 nvkm_wr32(device, 0x00c808, 0x00000000); 37 nvkm_wr32(device, 0x00c800, ctrl); 38 nvkm_msec(device, 2000, 39 if (nvkm_rd32(device, 0x00c800) & 0x40000000) { 40 while (size--) 41 nvkm_wr32(device, 0x00c804, 0x00000000); 42 break; 43 } 44 ); 45 nvkm_wr32(device, 0x00c800, 0x00000000); 46 } 47 48 static void 49 magic(struct nvkm_device *device, u32 ctrl) 50 { 51 magic_(device, 0x8000a41f | ctrl, 6); 52 magic_(device, 0x80000421 | ctrl, 1); 53 } 54 55 static void 56 gk104_pmu_pgob(struct nvkm_pmu *pmu, bool enable) 57 { 58 struct nvkm_device *device = pmu->subdev.device; 59 60 nvkm_mask(device, 0x000200, 0x00001000, 0x00000000); 61 nvkm_rd32(device, 0x000200); 62 nvkm_mask(device, 0x000200, 0x08000000, 0x08000000); 63 msleep(50); 64 65 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000002); 66 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 67 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 68 69 nvkm_mask(device, 0x020004, 0xc0000000, enable ? 0xc0000000 : 0x40000000); 70 msleep(50); 71 72 nvkm_mask(device, 0x10a78c, 0x00000002, 0x00000000); 73 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000001); 74 nvkm_mask(device, 0x10a78c, 0x00000001, 0x00000000); 75 76 nvkm_mask(device, 0x000200, 0x08000000, 0x00000000); 77 nvkm_mask(device, 0x000200, 0x00001000, 0x00001000); 78 nvkm_rd32(device, 0x000200); 79 80 if ( nvkm_boolopt(device->cfgopt, "War00C800_0", 81 device->quirk ? device->quirk->War00C800_0 : false)) { 82 nvkm_info(&pmu->subdev, "hw bug workaround enabled\n"); 83 switch (device->chipset) { 84 case 0xe4: 85 magic(device, 0x04000000); 86 magic(device, 0x06000000); 87 magic(device, 0x0c000000); 88 magic(device, 0x0e000000); 89 break; 90 case 0xe6: 91 magic(device, 0x02000000); 92 magic(device, 0x04000000); 93 magic(device, 0x0a000000); 94 break; 95 case 0xe7: 96 magic(device, 0x02000000); 97 break; 98 default: 99 break; 100 } 101 } 102 } 103 104 static const struct nvkm_pmu_func 105 gk104_pmu = { 106 .code.data = gk104_pmu_code, 107 .code.size = sizeof(gk104_pmu_code), 108 .data.data = gk104_pmu_data, 109 .data.size = sizeof(gk104_pmu_data), 110 .pgob = gk104_pmu_pgob, 111 }; 112 113 int 114 gk104_pmu_new(struct nvkm_device *device, int index, struct nvkm_pmu **ppmu) 115 { 116 return nvkm_pmu_new_(&gk104_pmu, device, index, ppmu); 117 } 118