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, 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                         info->fault = (data & 0x000000f8) >> 3;
  52                         break;
  53                 case 0x00000002: /* ENUM */
  54                         if (data & 0x00000020)
  55                                 info->engine  = (data & 0x3c000000) >> 26;
  56                         if (data & 0x00000010)
  57                                 info->runlist = (data & 0x01e00000) >> 21;
  58                         if (data & 0x00000008)
  59                                 info->intr    = (data & 0x000f8000) >> 15;
  60                         if (data & 0x00000004)
  61                                 info->reset   = (data & 0x00003e00) >> 9;
  62                         break;
  63                 case 0x00000003: /* ENGINE_TYPE */
  64                         type = (data & 0x7ffffffc) >> 2;
  65                         break;
  66                 }
  67
  68                 if (data & 0x80000000)
  69                         continue;
  70
  71                 /* Translate engine type to NVKM engine identifier. */
  72 #define A_(A) if (inst == 0) info->index = NVKM_ENGINE_##A
  73 #define B_(A) if (inst + NVKM_ENGINE_##A##0 < NVKM_ENGINE_##A##_LAST + 1)      \
  74                 info->index = NVKM_ENGINE_##A##0 + inst
  75                 switch (type) {
  76                 case 0x00000000: A_(GR    ); break;
  77                 case 0x00000001: A_(CE0   ); break;
  78                 case 0x00000002: A_(CE1   ); break;
  79                 case 0x00000003: A_(CE2   ); break;
  80                 case 0x00000008: A_(MSPDEC); break;
  81                 case 0x00000009: A_(MSPPP ); break;
  82                 case 0x0000000a: A_(MSVLD ); break;
  83                 case 0x0000000b: A_(MSENC ); break;
  84                 case 0x0000000c: A_(VIC   ); break;
  85                 case 0x0000000d: A_(SEC   ); break;
  86                 case 0x0000000e: B_(NVENC ); break;
  87                 case 0x0000000f: A_(NVENC1); break;
  88                 case 0x00000010: A_(NVDEC ); break;
  89                 case 0x00000013: B_(CE    ); break;
  90                         break;
  91                 default:
  92                         break;
  93                 }
  94
  95                 nvkm_debug(subdev, "%02x.%d (%8s): addr %06x fault %2d "
  96                                    "engine %2d runlist %2d intr %2d "
  97                                    "reset %2d\n", type, inst,
  98                            info->index == NVKM_SUBDEV_NR ? NULL :
  99                                           nvkm_subdev_name[info->index],
 100                            info->addr, info->fault, info->engine, info->runlist,
 101                            info->intr, info->reset);
 102                 info = NULL;
 103         }
 104
 105         return 0;
 106 }
 107
 108 static const struct nvkm_top_func
 109 gk104_top = {
 110         .oneinit = gk104_top_oneinit,
 111 };
 112
 113 int
 114 gk104_top_new(struct nvkm_device *device, int index, struct nvkm_top **ptop)
 115 {
 116         return nvkm_top_new_(&gk104_top, device, index, ptop);
 117 }