LXR linux/drivers/gpu/drm/nouveau/nvkm/subdev/top/gk104.c

   1/*
   2 * Copyright 2016 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 <bskeggs@redhat.com>
  23 */
  24#include "priv.h"
  25
  26static int
  27gk104_top_oneinit(struct nvkm_top *top)
  28{
  29        struct nvkm_subdev *subdev = &top->subdev;
  30        struct nvkm_device *device = subdev->device;
  31        struct nvkm_top_device *info = NULL;
  32        u32 data, type, inst;
  33        int i;
  34
  35        for (i = 0; i < 64; i++) {
  36                if (!info) {
  37                        if (!(info = nvkm_top_device_new(top)))
  38                                return -ENOMEM;
  39                        type = ~0;
  40                        inst = 0;
  41                }
  42
  43                data = nvkm_rd32(device, 0x022700 + (i * 0x04));
  44                nvkm_trace(subdev, "%02x: %08x\n", i, data);
  45                switch (data & 0x00000003) {
  46                case 0x00000000: /* NOT_VALID */
  47                        continue;
  48                case 0x00000001: /* DATA */
  49                        inst        = (data & 0x3c000000) >> 26;
  50                        info->addr  = (data & 0x00fff000);
  51                        if (data & 0x00000004)
  52                                info->fault = (data & 0x000003f8) >> 3;
  53                        break;
  54                case 0x00000002: /* ENUM */
  55                        if (data & 0x00000020)
  56                                info->engine  = (data & 0x3c000000) >> 26;
  57                        if (data & 0x00000010)
  58                                info->runlist = (data & 0x01e00000) >> 21;
  59                        if (data & 0x00000008)
  60                                info->intr    = (data & 0x000f8000) >> 15;
  61                        if (data & 0x00000004)
  62                                info->reset   = (data & 0x00003e00) >> 9;
  63                        break;
  64                case 0x00000003: /* ENGINE_TYPE */
  65                        type = (data & 0x7ffffffc) >> 2;
  66                        break;
  67                }
  68
  69                if (data & 0x80000000)
  70                        continue;
  71
  72                /* Translate engine type to NVKM engine identifier. */
  73#define I_(T,I) do { info->type = (T); info->inst = (I); } while(0)
  74#define O_(T,I) do { WARN_ON(inst); I_(T, I); } while (0)
  75                switch (type) {
  76                case 0x00000000: O_(NVKM_ENGINE_GR    ,    0); break;
  77                case 0x00000001: O_(NVKM_ENGINE_CE    ,    0); break;
  78                case 0x00000002: O_(NVKM_ENGINE_CE    ,    1); break;
  79                case 0x00000003: O_(NVKM_ENGINE_CE    ,    2); break;
  80                case 0x00000008: O_(NVKM_ENGINE_MSPDEC,    0); break;
  81                case 0x00000009: O_(NVKM_ENGINE_MSPPP ,    0); break;
  82                case 0x0000000a: O_(NVKM_ENGINE_MSVLD ,    0); break;
  83                case 0x0000000b: O_(NVKM_ENGINE_MSENC ,    0); break;
  84                case 0x0000000c: O_(NVKM_ENGINE_VIC   ,    0); break;
  85                case 0x0000000d: O_(NVKM_ENGINE_SEC2  ,    0); break;
  86                case 0x0000000e: I_(NVKM_ENGINE_NVENC , inst); break;
  87                case 0x0000000f: O_(NVKM_ENGINE_NVENC ,    1); break;
  88                case 0x00000010: I_(NVKM_ENGINE_NVDEC , inst); break;
  89                case 0x00000012: I_(NVKM_SUBDEV_IOCTRL, inst); break;
  90                case 0x00000013: I_(NVKM_ENGINE_CE    , inst); break;
  91                case 0x00000014: O_(NVKM_SUBDEV_GSP   ,    0); break;
  92                case 0x00000015: O_(NVKM_ENGINE_NVJPG ,    0); break;
  93                default:
  94                        break;
  95                }
  96
  97                nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
  98                                   "engine %2d runlist %2d intr %2d "
  99                                   "reset %2d\n", type, inst,
 100                           info->type == NVKM_SUBDEV_NR ? "????????" : nvkm_subdev_type[info->type],
 101                           info->addr, info->fault, info->engine, info->runlist,
 102                           info->intr, info->reset);
 103                info = NULL;
 104        }
 105
 106        return 0;
 107}
 108
 109static const struct nvkm_top_func
 110gk104_top = {
 111        .oneinit = gk104_top_oneinit,
 112};
 113
 114int
 115gk104_top_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
 116              struct nvkm_top **ptop)
 117{
 118        return nvkm_top_new_(&gk104_top, device, type, inst, ptop);
 119}
 120