1 /* 2 * Copyright 2012 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 <core/subdev.h> 25 #include <core/device.h> 26 #include <core/option.h> 27 28 static struct lock_class_key nvkm_subdev_lock_class[NVKM_SUBDEV_NR]; 29 30 const char * 31 nvkm_subdev_name[NVKM_SUBDEV_NR] = { 32 [NVKM_SUBDEV_BAR ] = "bar", 33 [NVKM_SUBDEV_VBIOS ] = "bios", 34 [NVKM_SUBDEV_BUS ] = "bus", 35 [NVKM_SUBDEV_CLK ] = "clk", 36 [NVKM_SUBDEV_DEVINIT ] = "devinit", 37 [NVKM_SUBDEV_FB ] = "fb", 38 [NVKM_SUBDEV_FUSE ] = "fuse", 39 [NVKM_SUBDEV_GPIO ] = "gpio", 40 [NVKM_SUBDEV_I2C ] = "i2c", 41 [NVKM_SUBDEV_IBUS ] = "priv", 42 [NVKM_SUBDEV_ICCSENSE] = "iccsense", 43 [NVKM_SUBDEV_INSTMEM ] = "imem", 44 [NVKM_SUBDEV_LTC ] = "ltc", 45 [NVKM_SUBDEV_MC ] = "mc", 46 [NVKM_SUBDEV_MMU ] = "mmu", 47 [NVKM_SUBDEV_MXM ] = "mxm", 48 [NVKM_SUBDEV_PCI ] = "pci", 49 [NVKM_SUBDEV_PMU ] = "pmu", 50 [NVKM_SUBDEV_SECBOOT ] = "secboot", 51 [NVKM_SUBDEV_THERM ] = "therm", 52 [NVKM_SUBDEV_TIMER ] = "tmr", 53 [NVKM_SUBDEV_VOLT ] = "volt", 54 [NVKM_ENGINE_BSP ] = "bsp", 55 [NVKM_ENGINE_CE0 ] = "ce0", 56 [NVKM_ENGINE_CE1 ] = "ce1", 57 [NVKM_ENGINE_CE2 ] = "ce2", 58 [NVKM_ENGINE_CIPHER ] = "cipher", 59 [NVKM_ENGINE_DISP ] = "disp", 60 [NVKM_ENGINE_DMAOBJ ] = "dma", 61 [NVKM_ENGINE_FIFO ] = "fifo", 62 [NVKM_ENGINE_GR ] = "gr", 63 [NVKM_ENGINE_IFB ] = "ifb", 64 [NVKM_ENGINE_ME ] = "me", 65 [NVKM_ENGINE_MPEG ] = "mpeg", 66 [NVKM_ENGINE_MSENC ] = "msenc", 67 [NVKM_ENGINE_MSPDEC ] = "mspdec", 68 [NVKM_ENGINE_MSPPP ] = "msppp", 69 [NVKM_ENGINE_MSVLD ] = "msvld", 70 [NVKM_ENGINE_NVENC0 ] = "nvenc0", 71 [NVKM_ENGINE_NVENC1 ] = "nvenc1", 72 [NVKM_ENGINE_NVDEC ] = "nvdec", 73 [NVKM_ENGINE_PM ] = "pm", 74 [NVKM_ENGINE_SEC ] = "sec", 75 [NVKM_ENGINE_SW ] = "sw", 76 [NVKM_ENGINE_VIC ] = "vic", 77 [NVKM_ENGINE_VP ] = "vp", 78 }; 79 80 void 81 nvkm_subdev_intr(struct nvkm_subdev *subdev) 82 { 83 if (subdev->func->intr) 84 subdev->func->intr(subdev); 85 } 86 87 int 88 nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend) 89 { 90 struct nvkm_device *device = subdev->device; 91 const char *action = suspend ? "suspend" : "fini"; 92 u32 pmc_enable = subdev->pmc_enable; 93 s64 time; 94 95 nvkm_trace(subdev, "%s running...\n", action); 96 time = ktime_to_us(ktime_get()); 97 98 if (subdev->func->fini) { 99 int ret = subdev->func->fini(subdev, suspend); 100 if (ret) { 101 nvkm_error(subdev, "%s failed, %d\n", action, ret); 102 if (suspend) 103 return ret; 104 } 105 } 106 107 if (pmc_enable) { 108 nvkm_mask(device, 0x000200, pmc_enable, 0x00000000); 109 nvkm_mask(device, 0x000200, pmc_enable, pmc_enable); 110 nvkm_rd32(device, 0x000200); 111 } 112 113 time = ktime_to_us(ktime_get()) - time; 114 nvkm_trace(subdev, "%s completed in %lldus\n", action, time); 115 return 0; 116 } 117 118 int 119 nvkm_subdev_preinit(struct nvkm_subdev *subdev) 120 { 121 s64 time; 122 123 nvkm_trace(subdev, "preinit running...\n"); 124 time = ktime_to_us(ktime_get()); 125 126 if (subdev->func->preinit) { 127 int ret = subdev->func->preinit(subdev); 128 if (ret) { 129 nvkm_error(subdev, "preinit failed, %d\n", ret); 130 return ret; 131 } 132 } 133 134 time = ktime_to_us(ktime_get()) - time; 135 nvkm_trace(subdev, "preinit completed in %lldus\n", time); 136 return 0; 137 } 138 139 int 140 nvkm_subdev_init(struct nvkm_subdev *subdev) 141 { 142 s64 time; 143 int ret; 144 145 nvkm_trace(subdev, "init running...\n"); 146 time = ktime_to_us(ktime_get()); 147 148 if (subdev->func->oneinit && !subdev->oneinit) { 149 s64 time; 150 nvkm_trace(subdev, "one-time init running...\n"); 151 time = ktime_to_us(ktime_get()); 152 ret = subdev->func->oneinit(subdev); 153 if (ret) { 154 nvkm_error(subdev, "one-time init failed, %d\n", ret); 155 return ret; 156 } 157 158 subdev->oneinit = true; 159 time = ktime_to_us(ktime_get()) - time; 160 nvkm_trace(subdev, "one-time init completed in %lldus\n", time); 161 } 162 163 if (subdev->func->init) { 164 ret = subdev->func->init(subdev); 165 if (ret) { 166 nvkm_error(subdev, "init failed, %d\n", ret); 167 return ret; 168 } 169 } 170 171 time = ktime_to_us(ktime_get()) - time; 172 nvkm_trace(subdev, "init completed in %lldus\n", time); 173 return 0; 174 } 175 176 void 177 nvkm_subdev_del(struct nvkm_subdev **psubdev) 178 { 179 struct nvkm_subdev *subdev = *psubdev; 180 s64 time; 181 182 if (subdev && !WARN_ON(!subdev->func)) { 183 nvkm_trace(subdev, "destroy running...\n"); 184 time = ktime_to_us(ktime_get()); 185 if (subdev->func->dtor) 186 *psubdev = subdev->func->dtor(subdev); 187 time = ktime_to_us(ktime_get()) - time; 188 nvkm_trace(subdev, "destroy completed in %lldus\n", time); 189 kfree(*psubdev); 190 *psubdev = NULL; 191 } 192 } 193 194 void 195 nvkm_subdev_ctor(const struct nvkm_subdev_func *func, 196 struct nvkm_device *device, int index, u32 pmc_enable, 197 struct nvkm_subdev *subdev) 198 { 199 const char *name = nvkm_subdev_name[index]; 200 subdev->func = func; 201 subdev->device = device; 202 subdev->index = index; 203 subdev->pmc_enable = pmc_enable; 204 205 __mutex_init(&subdev->mutex, name, &nvkm_subdev_lock_class[index]); 206 subdev->debug = nvkm_dbgopt(device->dbgopt, name); 207 } 208