drivers/gpu/drm/nouveau/nvkm/core/subdev.c

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