drivers/gpu/host1x/hw/debug_hw.c

   1 /*
   2  * Copyright (C) 2010 Google, Inc.
   3  * Author: Erik Gilling <konkers@android.com>
   4  *
   5  * Copyright (C) 2011-2013 NVIDIA Corporation
   6  *
   7  * This software is licensed under the terms of the GNU General Public
   8  * License version 2, as published by the Free Software Foundation, and
   9  * may be copied, distributed, and modified under those terms.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  */
  17
  18 #include "../dev.h"
  19 #include "../debug.h"
  20 #include "../cdma.h"
  21 #include "../channel.h"
  22
  23 #define HOST1X_DEBUG_MAX_PAGE_OFFSET 102400
  24
  25 enum {
  26         HOST1X_OPCODE_SETCLASS  = 0x00,
  27         HOST1X_OPCODE_INCR      = 0x01,
  28         HOST1X_OPCODE_NONINCR   = 0x02,
  29         HOST1X_OPCODE_MASK      = 0x03,
  30         HOST1X_OPCODE_IMM       = 0x04,
  31         HOST1X_OPCODE_RESTART   = 0x05,
  32         HOST1X_OPCODE_GATHER    = 0x06,
  33         HOST1X_OPCODE_SETSTRMID = 0x07,
  34         HOST1X_OPCODE_SETAPPID  = 0x08,
  35         HOST1X_OPCODE_SETPYLD   = 0x09,
  36         HOST1X_OPCODE_INCR_W    = 0x0a,
  37         HOST1X_OPCODE_NONINCR_W = 0x0b,
  38         HOST1X_OPCODE_GATHER_W  = 0x0c,
  39         HOST1X_OPCODE_RESTART_W = 0x0d,
  40         HOST1X_OPCODE_EXTEND    = 0x0e,
  41 };
  42
  43 enum {
  44         HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK      = 0x00,
  45         HOST1X_OPCODE_EXTEND_RELEASE_MLOCK      = 0x01,
  46 };
  47
  48 #define INVALID_PAYLOAD                         0xffffffff
  49
  50 static unsigned int show_channel_command(struct output *o, u32 val,
  51                                          u32 *payload)
  52 {
  53         unsigned int mask, subop, num, opcode;
  54
  55         opcode = val >> 28;
  56
  57         switch (opcode) {
  58         case HOST1X_OPCODE_SETCLASS:
  59                 mask = val & 0x3f;
  60                 if (mask) {
  61                         host1x_debug_cont(o, "SETCL(class=%03x, offset=%03x, mask=%02x, [",
  62                                             val >> 6 & 0x3ff,
  63                                             val >> 16 & 0xfff, mask);
  64                         return hweight8(mask);
  65                 }
  66
  67                 host1x_debug_cont(o, "SETCL(class=%03x)\n", val >> 6 & 0x3ff);
  68                 return 0;
  69
  70         case HOST1X_OPCODE_INCR:
  71                 num = val & 0xffff;
  72                 host1x_debug_cont(o, "INCR(offset=%03x, [",
  73                                     val >> 16 & 0xfff);
  74                 if (!num)
  75                         host1x_debug_cont(o, "])\n");
  76
  77                 return num;
  78
  79         case HOST1X_OPCODE_NONINCR:
  80                 num = val & 0xffff;
  81                 host1x_debug_cont(o, "NONINCR(offset=%03x, [",
  82                                     val >> 16 & 0xfff);
  83                 if (!num)
  84                         host1x_debug_cont(o, "])\n");
  85
  86                 return num;
  87
  88         case HOST1X_OPCODE_MASK:
  89                 mask = val & 0xffff;
  90                 host1x_debug_cont(o, "MASK(offset=%03x, mask=%03x, [",
  91                                     val >> 16 & 0xfff, mask);
  92                 if (!mask)
  93                         host1x_debug_cont(o, "])\n");
  94
  95                 return hweight16(mask);
  96
  97         case HOST1X_OPCODE_IMM:
  98                 host1x_debug_cont(o, "IMM(offset=%03x, data=%03x)\n",
  99                                     val >> 16 & 0xfff, val & 0xffff);
 100                 return 0;
 101
 102         case HOST1X_OPCODE_RESTART:
 103                 host1x_debug_cont(o, "RESTART(offset=%08x)\n", val << 4);
 104                 return 0;
 105
 106         case HOST1X_OPCODE_GATHER:
 107                 host1x_debug_cont(o, "GATHER(offset=%03x, insert=%d, type=%d, count=%04x, addr=[",
 108                                     val >> 16 & 0xfff, val >> 15 & 0x1,
 109                                     val >> 14 & 0x1, val & 0x3fff);
 110                 return 1;
 111
 112 #if HOST1X_HW >= 6
 113         case HOST1X_OPCODE_SETSTRMID:
 114                 host1x_debug_cont(o, "SETSTRMID(offset=%06x)\n",
 115                                   val & 0x3fffff);
 116                 return 0;
 117
 118         case HOST1X_OPCODE_SETAPPID:
 119                 host1x_debug_cont(o, "SETAPPID(appid=%02x)\n", val & 0xff);
 120                 return 0;
 121
 122         case HOST1X_OPCODE_SETPYLD:
 123                 *payload = val & 0xffff;
 124                 host1x_debug_cont(o, "SETPYLD(data=%04x)\n", *payload);
 125                 return 0;
 126
 127         case HOST1X_OPCODE_INCR_W:
 128         case HOST1X_OPCODE_NONINCR_W:
 129                 host1x_debug_cont(o, "%s(offset=%06x, ",
 130                                   opcode == HOST1X_OPCODE_INCR_W ?
 131                                         "INCR_W" : "NONINCR_W",
 132                                   val & 0x3fffff);
 133                 if (*payload == 0) {
 134                         host1x_debug_cont(o, "[])\n");
 135                         return 0;
 136                 } else if (*payload == INVALID_PAYLOAD) {
 137                         host1x_debug_cont(o, "unknown)\n");
 138                         return 0;
 139                 } else {
 140                         host1x_debug_cont(o, "[");
 141                         return *payload;
 142                 }
 143
 144         case HOST1X_OPCODE_GATHER_W:
 145                 host1x_debug_cont(o, "GATHER_W(count=%04x, addr=[",
 146                                   val & 0x3fff);
 147                 return 2;
 148 #endif
 149
 150         case HOST1X_OPCODE_EXTEND:
 151                 subop = val >> 24 & 0xf;
 152                 if (subop == HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK)
 153                         host1x_debug_cont(o, "ACQUIRE_MLOCK(index=%d)\n",
 154                                             val & 0xff);
 155                 else if (subop == HOST1X_OPCODE_EXTEND_RELEASE_MLOCK)
 156                         host1x_debug_cont(o, "RELEASE_MLOCK(index=%d)\n",
 157                                             val & 0xff);
 158                 else
 159                         host1x_debug_cont(o, "EXTEND_UNKNOWN(%08x)\n", val);
 160                 return 0;
 161
 162         default:
 163                 host1x_debug_cont(o, "UNKNOWN\n");
 164                 return 0;
 165         }
 166 }
 167
 168 static void show_gather(struct output *o, phys_addr_t phys_addr,
 169                         unsigned int words, struct host1x_cdma *cdma,
 170                         phys_addr_t pin_addr, u32 *map_addr)
 171 {
 172         /* Map dmaget cursor to corresponding mem handle */
 173         u32 offset = phys_addr - pin_addr;
 174         unsigned int data_count = 0, i;
 175         u32 payload = INVALID_PAYLOAD;
 176
 177         /*
 178          * Sometimes we're given different hardware address to the same
 179          * page - in these cases the offset will get an invalid number and
 180          * we just have to bail out.
 181          */
 182         if (offset > HOST1X_DEBUG_MAX_PAGE_OFFSET) {
 183                 host1x_debug_output(o, "[address mismatch]\n");
 184                 return;
 185         }
 186
 187         for (i = 0; i < words; i++) {
 188                 u32 addr = phys_addr + i * 4;
 189                 u32 val = *(map_addr + offset / 4 + i);
 190
 191                 if (!data_count) {
 192                         host1x_debug_output(o, "%08x: %08x: ", addr, val);
 193                         data_count = show_channel_command(o, val, &payload);
 194                 } else {
 195                         host1x_debug_cont(o, "%08x%s", val,
 196                                             data_count > 1 ? ", " : "])\n");
 197                         data_count--;
 198                 }
 199         }
 200 }
 201
 202 static void show_channel_gathers(struct output *o, struct host1x_cdma *cdma)
 203 {
 204         struct host1x_job *job;
 205
 206         list_for_each_entry(job, &cdma->sync_queue, list) {
 207                 unsigned int i;
 208
 209                 host1x_debug_output(o, "\n%p: JOB, syncpt_id=%d, syncpt_val=%d, first_get=%08x, timeout=%d num_slots=%d, num_handles=%d\n",
 210                                     job, job->syncpt_id, job->syncpt_end,
 211                                     job->first_get, job->timeout,
 212                                     job->num_slots, job->num_unpins);
 213
 214                 for (i = 0; i < job->num_gathers; i++) {
 215                         struct host1x_job_gather *g = &job->gathers[i];
 216                         u32 *mapped;
 217
 218                         if (job->gather_copy_mapped)
 219                                 mapped = (u32 *)job->gather_copy_mapped;
 220                         else
 221                                 mapped = host1x_bo_mmap(g->bo);
 222
 223                         if (!mapped) {
 224                                 host1x_debug_output(o, "[could not mmap]\n");
 225                                 continue;
 226                         }
 227
 228                         host1x_debug_output(o, "    GATHER at %pad+%#x, %d words\n",
 229                                             &g->base, g->offset, g->words);
 230
 231                         show_gather(o, g->base + g->offset, g->words, cdma,
 232                                     g->base, mapped);
 233
 234                         if (!job->gather_copy_mapped)
 235                                 host1x_bo_munmap(g->bo, mapped);
 236                 }
 237         }
 238 }
 239
 240 #if HOST1X_HW >= 6
 241 #include "debug_hw_1x06.c"
 242 #else
 243 #include "debug_hw_1x01.c"
 244 #endif
 245
 246 static const struct host1x_debug_ops host1x_debug_ops = {
 247         .show_channel_cdma = host1x_debug_show_channel_cdma,
 248         .show_channel_fifo = host1x_debug_show_channel_fifo,
 249         .show_mlocks = host1x_debug_show_mlocks,
 250 };