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
  26 static int
  27 gk104_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;
  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                 }
  41
  42                 data = nvkm_rd32(device, 0x022700 + (i * 0x04));
  43                 nvkm_trace(subdev, "%02x: %08x\n", i, data);
  44                 switch (data & 0x00000003) {
  45                 case 0x00000000: /* NOT_VALID */
  46                         continue;
  47                 case 0x00000001: /* DATA */
  48                         info->addr  = (data & 0x00fff000);
  49                         info->fault = (data & 0x000000f8) >> 3;
  50                         break;
  51                 case 0x00000002: /* ENUM */
  52                         if (data & 0x00000020)
  53                                 info->engine  = (data & 0x3c000000) >> 26;
  54                         if (data & 0x00000010)
  55                                 info->runlist = (data & 0x01e00000) >> 21;
  56                         if (data & 0x00000008)
  57                                 info->intr    = (data & 0x000f8000) >> 15;
  58                         if (data & 0x00000004)
  59                                 info->reset   = (data & 0x00003e00) >> 9;
  60                         break;
  61                 case 0x00000003: /* ENGINE_TYPE */
  62                         type = (data & 0x7ffffffc) >> 2;
  63                         break;
  64                 }
  65
  66                 if (data & 0x80000000)
  67                         continue;
  68
  69                 /* Translate engine type to NVKM engine identifier. */
  70                 switch (type) {
  71                 case 0x00000000: info->index = NVKM_ENGINE_GR; break;
  72                 case 0x00000001: info->index = NVKM_ENGINE_CE0; break;
  73                 case 0x00000002: info->index = NVKM_ENGINE_CE1; break;
  74                 case 0x00000003: info->index = NVKM_ENGINE_CE2; break;
  75                 case 0x00000008: info->index = NVKM_ENGINE_MSPDEC; break;
  76                 case 0x00000009: info->index = NVKM_ENGINE_MSPPP; break;
  77                 case 0x0000000a: info->index = NVKM_ENGINE_MSVLD; break;
  78                 case 0x0000000b: info->index = NVKM_ENGINE_MSENC; break;
  79                 case 0x0000000c: info->index = NVKM_ENGINE_VIC; break;
  80                 case 0x0000000d: info->index = NVKM_ENGINE_SEC; break;
  81                 case 0x0000000e: info->index = NVKM_ENGINE_NVENC0; break;
  82                 case 0x0000000f: info->index = NVKM_ENGINE_NVENC1; break;
  83                 case 0x00000010: info->index = NVKM_ENGINE_NVDEC; break;
  84                         break;
  85                 default:
  86                         break;
  87                 }
  88
  89                 nvkm_debug(subdev, "%02x (%8s): addr %06x fault %2d engine %2d "
  90                                    "runlist %2d intr %2d reset %2d\n", type,
  91                            info->index == NVKM_SUBDEV_NR ? NULL :
  92                                           nvkm_subdev_name[info->index],
  93                            info->addr, info->fault, info->engine, info->runlist,
  94                            info->intr, info->reset);
  95                 info = NULL;
  96         }
  97
  98         return 0;
  99 }
 100
 101 static const struct nvkm_top_func
 102 gk104_top = {
 103         .oneinit = gk104_top_oneinit,
 104 };
 105
 106 int
 107 gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop)
 108 {
 109         return nvkm_top_new_(&gk104_top, device, index, ptop);
 110 }