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_CE3     ] = "ce3",
  61         [NVKM_ENGINE_CE4     ] = "ce4",
  62         [NVKM_ENGINE_CE5     ] = "ce5",
  63         [NVKM_ENGINE_CIPHER  ] = "cipher",
  64         [NVKM_ENGINE_DISP    ] = "disp",
  65         [NVKM_ENGINE_DMAOBJ  ] = "dma",
  66         [NVKM_ENGINE_FIFO    ] = "fifo",
  67         [NVKM_ENGINE_GR      ] = "gr",
  68         [NVKM_ENGINE_IFB     ] = "ifb",
  69         [NVKM_ENGINE_ME      ] = "me",
  70         [NVKM_ENGINE_MPEG    ] = "mpeg",
  71         [NVKM_ENGINE_MSENC   ] = "msenc",
  72         [NVKM_ENGINE_MSPDEC  ] = "mspdec",
  73         [NVKM_ENGINE_MSPPP   ] = "msppp",
  74         [NVKM_ENGINE_MSVLD   ] = "msvld",
  75         [NVKM_ENGINE_NVENC0  ] = "nvenc0",
  76         [NVKM_ENGINE_NVENC1  ] = "nvenc1",
  77         [NVKM_ENGINE_NVENC2  ] = "nvenc2",
  78         [NVKM_ENGINE_NVDEC   ] = "nvdec",
  79         [NVKM_ENGINE_PM      ] = "pm",
  80         [NVKM_ENGINE_SEC     ] = "sec",
  81         [NVKM_ENGINE_SEC2    ] = "sec2",
  82         [NVKM_ENGINE_SW      ] = "sw",
  83         [NVKM_ENGINE_VIC     ] = "vic",
  84         [NVKM_ENGINE_VP      ] = "vp",
  85 };
  86
  87 void
  88 nvkm_subdev_intr(struct nvkm_subdev *subdev)
  89 {
  90         if (subdev->func->intr)
  91                 subdev->func->intr(subdev);
  92 }
  93
  94 int
  95 nvkm_subdev_fini(struct nvkm_subdev *subdev, bool suspend)
  96 {
  97         struct nvkm_device *device = subdev->device;
  98         const char *action = suspend ? "suspend" : "fini";
  99         s64 time;
 100
 101         nvkm_trace(subdev, "%s running...\n", action);
 102         time = ktime_to_us(ktime_get());
 103
 104         if (subdev->func->fini) {
 105                 int ret = subdev->func->fini(subdev, suspend);
 106                 if (ret) {
 107                         nvkm_error(subdev, "%s failed, %d\n", action, ret);
 108                         if (suspend)
 109                                 return ret;
 110                 }
 111         }
 112
 113         nvkm_mc_reset(device, subdev->index);
 114
 115         time = ktime_to_us(ktime_get()) - time;
 116         nvkm_trace(subdev, "%s completed in %lldus\n", action, time);
 117         return 0;
 118 }
 119
 120 int
 121 nvkm_subdev_preinit(struct nvkm_subdev *subdev)
 122 {
 123         s64 time;
 124
 125         nvkm_trace(subdev, "preinit running...\n");
 126         time = ktime_to_us(ktime_get());
 127
 128         if (subdev->func->preinit) {
 129                 int ret = subdev->func->preinit(subdev);
 130                 if (ret) {
 131                         nvkm_error(subdev, "preinit failed, %d\n", ret);
 132                         return ret;
 133                 }
 134         }
 135
 136         time = ktime_to_us(ktime_get()) - time;
 137         nvkm_trace(subdev, "preinit completed in %lldus\n", time);
 138         return 0;
 139 }
 140
 141 int
 142 nvkm_subdev_init(struct nvkm_subdev *subdev)
 143 {
 144         s64 time;
 145         int ret;
 146
 147         nvkm_trace(subdev, "init running...\n");
 148         time = ktime_to_us(ktime_get());
 149
 150         if (subdev->func->oneinit && !subdev->oneinit) {
 151                 s64 time;
 152                 nvkm_trace(subdev, "one-time init running...\n");
 153                 time = ktime_to_us(ktime_get());
 154                 ret = subdev->func->oneinit(subdev);
 155                 if (ret) {
 156                         nvkm_error(subdev, "one-time init failed, %d\n", ret);
 157                         return ret;
 158                 }
 159
 160                 subdev->oneinit = true;
 161                 time = ktime_to_us(ktime_get()) - time;
 162                 nvkm_trace(subdev, "one-time init completed in %lldus\n", time);
 163         }
 164
 165         if (subdev->func->init) {
 166                 ret = subdev->func->init(subdev);
 167                 if (ret) {
 168                         nvkm_error(subdev, "init failed, %d\n", ret);
 169                         return ret;
 170                 }
 171         }
 172
 173         time = ktime_to_us(ktime_get()) - time;
 174         nvkm_trace(subdev, "init completed in %lldus\n", time);
 175         return 0;
 176 }
 177
 178 void
 179 nvkm_subdev_del(struct nvkm_subdev **psubdev)
 180 {
 181         struct nvkm_subdev *subdev = *psubdev;
 182         s64 time;
 183
 184         if (subdev && !WARN_ON(!subdev->func)) {
 185                 nvkm_trace(subdev, "destroy running...\n");
 186                 time = ktime_to_us(ktime_get());
 187                 if (subdev->func->dtor)
 188                         *psubdev = subdev->func->dtor(subdev);
 189                 time = ktime_to_us(ktime_get()) - time;
 190                 nvkm_trace(subdev, "destroy completed in %lldus\n", time);
 191                 kfree(*psubdev);
 192                 *psubdev = NULL;
 193         }
 194 }
 195
 196 void
 197 nvkm_subdev_ctor(const struct nvkm_subdev_func *func,
 198                  struct nvkm_device *device, int index,
 199                  struct nvkm_subdev *subdev)
 200 {
 201         const char *name = nvkm_subdev_name[index];
 202         subdev->func = func;
 203         subdev->device = device;
 204         subdev->index = index;
 205
 206         __mutex_init(&subdev->mutex, name, &nvkm_subdev_lock_class[index]);
 207         subdev->debug = nvkm_dbgopt(device->dbgopt, name);
 208 }