drivers/gpu/host1x/hw/debug_hw.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2010 Google, Inc.
   4  * Author: Erik Gilling <[email protected]>
   5  *
   6  * Copyright (C) 2011-2013 NVIDIA Corporation
   7  */
   8
   9 #include "../dev.h"
  10 #include "../debug.h"
  11 #include "../cdma.h"
  12 #include "../channel.h"
  13
  14 #define HOST1X_DEBUG_MAX_PAGE_OFFSET 102400
  15
  16 enum {
  17         HOST1X_OPCODE_SETCLASS  = 0x00,
  18         HOST1X_OPCODE_INCR      = 0x01,
  19         HOST1X_OPCODE_NONINCR   = 0x02,
  20         HOST1X_OPCODE_MASK      = 0x03,
  21         HOST1X_OPCODE_IMM       = 0x04,
  22         HOST1X_OPCODE_RESTART   = 0x05,
  23         HOST1X_OPCODE_GATHER    = 0x06,
  24         HOST1X_OPCODE_SETSTRMID = 0x07,
  25         HOST1X_OPCODE_SETAPPID  = 0x08,
  26         HOST1X_OPCODE_SETPYLD   = 0x09,
  27         HOST1X_OPCODE_INCR_W    = 0x0a,
  28         HOST1X_OPCODE_NONINCR_W = 0x0b,
  29         HOST1X_OPCODE_GATHER_W  = 0x0c,
  30         HOST1X_OPCODE_RESTART_W = 0x0d,
  31         HOST1X_OPCODE_EXTEND    = 0x0e,
  32 };
  33
  34 enum {
  35         HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK      = 0x00,
  36         HOST1X_OPCODE_EXTEND_RELEASE_MLOCK      = 0x01,
  37 };
  38
  39 #define INVALID_PAYLOAD                         0xffffffff
  40
  41 static unsigned int show_channel_command(struct output *o, u32 val,
  42                                          u32 *payload)
  43 {
  44         unsigned int mask, subop, num, opcode;
  45
  46         opcode = val >> 28;
  47
  48         switch (opcode) {
  49         case HOST1X_OPCODE_SETCLASS:
  50                 mask = val & 0x3f;
  51                 if (mask) {
  52                         host1x_debug_cont(o, "SETCL(class=%03x, offset=%03x, mask=%02x, [",
  53                                             val >> 6 & 0x3ff,
  54                                             val >> 16 & 0xfff, mask);
  55                         return hweight8(mask);
  56                 }
  57
  58                 host1x_debug_cont(o, "SETCL(class=%03x)\n", val >> 6 & 0x3ff);
  59                 return 0;
  60
  61         case HOST1X_OPCODE_INCR:
  62                 num = val & 0xffff;
  63                 host1x_debug_cont(o, "INCR(offset=%03x, [",
  64                                     val >> 16 & 0xfff);
  65                 if (!num)
  66                         host1x_debug_cont(o, "])\n");
  67
  68                 return num;
  69
  70         case HOST1X_OPCODE_NONINCR:
  71                 num = val & 0xffff;
  72                 host1x_debug_cont(o, "NONINCR(offset=%03x, [",
  73                                     val >> 16 & 0xfff);
  74                 if (!num)
  75                         host1x_debug_cont(o, "])\n");
  76
  77                 return num;
  78
  79         case HOST1X_OPCODE_MASK:
  80                 mask = val & 0xffff;
  81                 host1x_debug_cont(o, "MASK(offset=%03x, mask=%03x, [",
  82                                     val >> 16 & 0xfff, mask);
  83                 if (!mask)
  84                         host1x_debug_cont(o, "])\n");
  85
  86                 return hweight16(mask);
  87
  88         case HOST1X_OPCODE_IMM:
  89                 host1x_debug_cont(o, "IMM(offset=%03x, data=%03x)\n",
  90                                     val >> 16 & 0xfff, val & 0xffff);
  91                 return 0;
  92
  93         case HOST1X_OPCODE_RESTART:
  94                 host1x_debug_cont(o, "RESTART(offset=%08x)\n", val << 4);
  95                 return 0;
  96
  97         case HOST1X_OPCODE_GATHER:
  98                 host1x_debug_cont(o, "GATHER(offset=%03x, insert=%d, type=%d, count=%04x, addr=[",
  99                                     val >> 16 & 0xfff, val >> 15 & 0x1,
 100                                     val >> 14 & 0x1, val & 0x3fff);
 101                 return 1;
 102
 103 #if HOST1X_HW >= 6
 104         case HOST1X_OPCODE_SETSTRMID:
 105                 host1x_debug_cont(o, "SETSTRMID(offset=%06x)\n",
 106                                   val & 0x3fffff);
 107                 return 0;
 108
 109         case HOST1X_OPCODE_SETAPPID:
 110                 host1x_debug_cont(o, "SETAPPID(appid=%02x)\n", val & 0xff);
 111                 return 0;
 112
 113         case HOST1X_OPCODE_SETPYLD:
 114                 *payload = val & 0xffff;
 115                 host1x_debug_cont(o, "SETPYLD(data=%04x)\n", *payload);
 116                 return 0;
 117
 118         case HOST1X_OPCODE_INCR_W:
 119         case HOST1X_OPCODE_NONINCR_W:
 120                 host1x_debug_cont(o, "%s(offset=%06x, ",
 121                                   opcode == HOST1X_OPCODE_INCR_W ?
 122                                         "INCR_W" : "NONINCR_W",
 123                                   val & 0x3fffff);
 124                 if (*payload == 0) {
 125                         host1x_debug_cont(o, "[])\n");
 126                         return 0;
 127                 } else if (*payload == INVALID_PAYLOAD) {
 128                         host1x_debug_cont(o, "unknown)\n");
 129                         return 0;
 130                 } else {
 131                         host1x_debug_cont(o, "[");
 132                         return *payload;
 133                 }
 134
 135         case HOST1X_OPCODE_GATHER_W:
 136                 host1x_debug_cont(o, "GATHER_W(count=%04x, addr=[",
 137                                   val & 0x3fff);
 138                 return 2;
 139 #endif
 140
 141         case HOST1X_OPCODE_EXTEND:
 142                 subop = val >> 24 & 0xf;
 143                 if (subop == HOST1X_OPCODE_EXTEND_ACQUIRE_MLOCK)
 144                         host1x_debug_cont(o, "ACQUIRE_MLOCK(index=%d)\n",
 145                                             val & 0xff);
 146                 else if (subop == HOST1X_OPCODE_EXTEND_RELEASE_MLOCK)
 147                         host1x_debug_cont(o, "RELEASE_MLOCK(index=%d)\n",
 148                                             val & 0xff);
 149                 else
 150                         host1x_debug_cont(o, "EXTEND_UNKNOWN(%08x)\n", val);
 151                 return 0;
 152
 153         default:
 154                 host1x_debug_cont(o, "UNKNOWN\n");
 155                 return 0;
 156         }
 157 }
 158
 159 static void show_gather(struct output *o, dma_addr_t phys_addr,
 160                         unsigned int words, struct host1x_cdma *cdma,
 161                         dma_addr_t pin_addr, u32 *map_addr)
 162 {
 163         /* Map dmaget cursor to corresponding mem handle */
 164         u32 offset = phys_addr - pin_addr;
 165         unsigned int data_count = 0, i;
 166         u32 payload = INVALID_PAYLOAD;
 167
 168         /*
 169          * Sometimes we're given different hardware address to the same
 170          * page - in these cases the offset will get an invalid number and
 171          * we just have to bail out.
 172          */
 173         if (offset > HOST1X_DEBUG_MAX_PAGE_OFFSET) {
 174                 host1x_debug_output(o, "[address mismatch]\n");
 175                 return;
 176         }
 177
 178         for (i = 0; i < words; i++) {
 179                 dma_addr_t addr = phys_addr + i * 4;
 180                 u32 voffset = offset + i * 4;
 181                 u32 val;
 182
 183                 /* If we reach the RESTART opcode, continue at the beginning of pushbuffer */
 184                 if (cdma && voffset >= cdma->push_buffer.size) {
 185                         addr -= cdma->push_buffer.size;
 186                         voffset -= cdma->push_buffer.size;
 187                 }
 188
 189                 val = *(map_addr + voffset / 4);
 190
 191                 if (!data_count) {
 192                         host1x_debug_output(o, "    %pad: %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 push_buffer *pb = &cdma->push_buffer;
 205         struct host1x_job *job;
 206
 207         list_for_each_entry(job, &cdma->sync_queue, list) {
 208                 unsigned int i;
 209
 210                 host1x_debug_output(o, "JOB, syncpt %u: %u timeout: %u num_slots: %u num_handles: %u\n",
 211                                     job->syncpt->id, job->syncpt_end, job->timeout,
 212                                     job->num_slots, job->num_unpins);
 213
 214                 show_gather(o, pb->dma + job->first_get, job->num_slots * 2, cdma,
 215                             pb->dma, pb->mapped);
 216
 217                 for (i = 0; i < job->num_cmds; i++) {
 218                         struct host1x_job_gather *g;
 219                         u32 *mapped;
 220
 221                         if (job->cmds[i].is_wait)
 222                                 continue;
 223
 224                         g = &job->cmds[i].gather;
 225
 226                         if (job->gather_copy_mapped)
 227                                 mapped = (u32 *)job->gather_copy_mapped;
 228                         else
 229                                 mapped = host1x_bo_mmap(g->bo);
 230
 231                         if (!mapped) {
 232                                 host1x_debug_output(o, "[could not mmap]\n");
 233                                 continue;
 234                         }
 235
 236                         host1x_debug_output(o, "  GATHER at %pad+%#x, %d words\n",
 237                                             &g->base, g->offset, g->words);
 238
 239                         show_gather(o, g->base + g->offset, g->words, NULL,
 240                                     g->base, mapped);
 241
 242                         if (!job->gather_copy_mapped)
 243                                 host1x_bo_munmap(g->bo, mapped);
 244                 }
 245         }
 246 }
 247
 248 #if HOST1X_HW >= 6
 249 #include "debug_hw_1x06.c"
 250 #else
 251 #include "debug_hw_1x01.c"
 252 #endif
 253
 254 static const struct host1x_debug_ops host1x_debug_ops = {
 255         .show_channel_cdma = host1x_debug_show_channel_cdma,
 256         .show_channel_fifo = host1x_debug_show_channel_fifo,
 257         .show_mlocks = host1x_debug_show_mlocks,
 258 };