src/gallium/drivers/radeonsi/si_debug.c

   1 /*
   2  * Copyright 2015 Advanced Micro Devices, 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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors:
  24  *      Marek Olšák <maraeo@gmail.com>
  25  */
  26
  27 #include "si_pipe.h"
  28 #include "si_shader.h"
  29 #include "sid.h"
  30 #include "sid_tables.h"
  31
  32
  33 static void si_dump_shader(struct si_shader_selector *sel, const char *name,
  34                            FILE *f)
  35 {
  36         if (!sel || !sel->current)
  37                 return;
  38
  39         fprintf(f, "%s shader disassembly:\n", name);
  40         si_dump_shader_key(sel->type, &sel->current->key, f);
  41         fprintf(f, "%s\n\n", sel->current->binary.disasm_string);
  42 }
  43
  44 /* Parsed IBs are difficult to read without colors. Use "less -R file" to
  45  * read them, or use "aha -b -f file" to convert them to html.
  46  */
  47 #define COLOR_RESET     "\033[0m"
  48 #define COLOR_RED       "\033[31m"
  49 #define COLOR_GREEN     "\033[1;32m"
  50 #define COLOR_YELLOW    "\033[1;33m"
  51 #define COLOR_CYAN      "\033[1;36m"
  52
  53 #define INDENT_PKT 8
  54
  55 static void print_spaces(FILE *f, unsigned num)
  56 {
  57         fprintf(f, "%*s", num, "");
  58 }
  59
  60 static void print_value(FILE *file, uint32_t value, int bits)
  61 {
  62         /* Guess if it's int or float */
  63         if (value <= (1 << 15))
  64                 fprintf(file, "%u\n", value);
  65         else {
  66                 float f = uif(value);
  67
  68                 if (fabs(f) < 100000 && f*10 == floor(f*10))
  69                         fprintf(file, "%.1ff\n", f);
  70                 else
  71                         /* Don't print more leading zeros than there are bits. */
  72                         fprintf(file, "0x%0*x\n", bits / 4, value);
  73         }
  74 }
  75
  76 static void print_named_value(FILE *file, const char *name, uint32_t value,
  77                               int bits)
  78 {
  79         print_spaces(file, INDENT_PKT);
  80         fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ", name);
  81         print_value(file, value, bits);
  82 }
  83
  84 static void si_dump_reg(FILE *file, unsigned offset, uint32_t value,
  85                         uint32_t field_mask)
  86 {
  87         int r, f;
  88
  89         for (r = 0; r < ARRAY_SIZE(reg_table); r++) {
  90                 const struct si_reg *reg = &reg_table[r];
  91
  92                 if (reg->offset == offset) {
  93                         bool first_field = true;
  94
  95                         print_spaces(file, INDENT_PKT);
  96                         fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ",
  97                                 reg->name);
  98
  99                         if (!reg->num_fields) {
 100                                 print_value(file, value, 32);
 101                                 return;
 102                         }
 103
 104                         for (f = 0; f < reg->num_fields; f++) {
 105                                 const struct si_field *field = &reg->fields[f];
 106                                 uint32_t val = (value & field->mask) >>
 107                                                (ffs(field->mask) - 1);
 108
 109                                 if (!(field->mask & field_mask))
 110                                         continue;
 111
 112                                 /* Indent the field. */
 113                                 if (!first_field)
 114                                         print_spaces(file,
 115                                                      INDENT_PKT + strlen(reg->name) + 4);
 116
 117                                 /* Print the field. */
 118                                 fprintf(file, "%s = ", field->name);
 119
 120                                 if (val < field->num_values && field->values[val])
 121                                         fprintf(file, "%s\n", field->values[val]);
 122                                 else
 123                                         print_value(file, val,
 124                                                     util_bitcount(field->mask));
 125
 126                                 first_field = false;
 127                         }
 128                         return;
 129                 }
 130         }
 131
 132         fprintf(file, COLOR_YELLOW "0x%05x" COLOR_RESET " = 0x%08x", offset, value);
 133 }
 134
 135 static void si_parse_set_reg_packet(FILE *f, uint32_t *ib, unsigned count,
 136                                     unsigned reg_offset)
 137 {
 138         unsigned reg = (ib[1] << 2) + reg_offset;
 139         int i;
 140
 141         for (i = 0; i < count; i++)
 142                 si_dump_reg(f, reg + i*4, ib[2+i], ~0);
 143 }
 144
 145 static uint32_t *si_parse_packet3(FILE *f, uint32_t *ib, int *num_dw,
 146                                   int trace_id)
 147 {
 148         unsigned count = PKT_COUNT_G(ib[0]);
 149         unsigned op = PKT3_IT_OPCODE_G(ib[0]);
 150         const char *predicate = PKT3_PREDICATE(ib[0]) ? "(predicate)" : "";
 151         int i;
 152
 153         /* Print the name first. */
 154         for (i = 0; i < ARRAY_SIZE(packet3_table); i++)
 155                 if (packet3_table[i].op == op)
 156                         break;
 157
 158         if (i < ARRAY_SIZE(packet3_table))
 159                 if (op == PKT3_SET_CONTEXT_REG ||
 160                     op == PKT3_SET_CONFIG_REG ||
 161                     op == PKT3_SET_UCONFIG_REG ||
 162                     op == PKT3_SET_SH_REG)
 163                         fprintf(f, COLOR_CYAN "%s%s" COLOR_CYAN ":\n",
 164                                 packet3_table[i].name, predicate);
 165                 else
 166                         fprintf(f, COLOR_GREEN "%s%s" COLOR_RESET ":\n",
 167                                 packet3_table[i].name, predicate);
 168         else
 169                 fprintf(f, COLOR_RED "PKT3_UNKNOWN 0x%x%s" COLOR_RESET ":\n",
 170                         op, predicate);
 171
 172         /* Print the contents. */
 173         switch (op) {
 174         case PKT3_SET_CONTEXT_REG:
 175                 si_parse_set_reg_packet(f, ib, count, SI_CONTEXT_REG_OFFSET);
 176                 break;
 177         case PKT3_SET_CONFIG_REG:
 178                 si_parse_set_reg_packet(f, ib, count, SI_CONFIG_REG_OFFSET);
 179                 break;
 180         case PKT3_SET_UCONFIG_REG:
 181                 si_parse_set_reg_packet(f, ib, count, CIK_UCONFIG_REG_OFFSET);
 182                 break;
 183         case PKT3_SET_SH_REG:
 184                 si_parse_set_reg_packet(f, ib, count, SI_SH_REG_OFFSET);
 185                 break;
 186         case PKT3_DRAW_PREAMBLE:
 187                 si_dump_reg(f, R_030908_VGT_PRIMITIVE_TYPE, ib[1], ~0);
 188                 si_dump_reg(f, R_028AA8_IA_MULTI_VGT_PARAM, ib[2], ~0);
 189                 si_dump_reg(f, R_028B58_VGT_LS_HS_CONFIG, ib[3], ~0);
 190                 break;
 191         case PKT3_ACQUIRE_MEM:
 192                 si_dump_reg(f, R_0301F0_CP_COHER_CNTL, ib[1], ~0);
 193                 si_dump_reg(f, R_0301F4_CP_COHER_SIZE, ib[2], ~0);
 194                 si_dump_reg(f, R_030230_CP_COHER_SIZE_HI, ib[3], ~0);
 195                 si_dump_reg(f, R_0301F8_CP_COHER_BASE, ib[4], ~0);
 196                 si_dump_reg(f, R_0301E4_CP_COHER_BASE_HI, ib[5], ~0);
 197                 print_named_value(f, "POLL_INTERVAL", ib[6], 16);
 198                 break;
 199         case PKT3_SURFACE_SYNC:
 200                 si_dump_reg(f, R_0085F0_CP_COHER_CNTL, ib[1], ~0);
 201                 si_dump_reg(f, R_0085F4_CP_COHER_SIZE, ib[2], ~0);
 202                 si_dump_reg(f, R_0085F8_CP_COHER_BASE, ib[3], ~0);
 203                 print_named_value(f, "POLL_INTERVAL", ib[4], 16);
 204                 break;
 205         case PKT3_EVENT_WRITE:
 206                 si_dump_reg(f, R_028A90_VGT_EVENT_INITIATOR, ib[1],
 207                             S_028A90_EVENT_TYPE(~0));
 208                 print_named_value(f, "EVENT_INDEX", (ib[1] >> 8) & 0xf, 4);
 209                 print_named_value(f, "INV_L2", (ib[1] >> 20) & 0x1, 1);
 210                 if (count > 0) {
 211                         print_named_value(f, "ADDRESS_LO", ib[2], 32);
 212                         print_named_value(f, "ADDRESS_HI", ib[3], 16);
 213                 }
 214                 break;
 215         case PKT3_DRAW_INDEX_AUTO:
 216                 si_dump_reg(f, R_030930_VGT_NUM_INDICES, ib[1], ~0);
 217                 si_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[2], ~0);
 218                 break;
 219         case PKT3_DRAW_INDEX_2:
 220                 si_dump_reg(f, R_028A78_VGT_DMA_MAX_SIZE, ib[1], ~0);
 221                 si_dump_reg(f, R_0287E8_VGT_DMA_BASE, ib[2], ~0);
 222                 si_dump_reg(f, R_0287E4_VGT_DMA_BASE_HI, ib[3], ~0);
 223                 si_dump_reg(f, R_030930_VGT_NUM_INDICES, ib[4], ~0);
 224                 si_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[5], ~0);
 225                 break;
 226         case PKT3_INDEX_TYPE:
 227                 si_dump_reg(f, R_028A7C_VGT_DMA_INDEX_TYPE, ib[1], ~0);
 228                 break;
 229         case PKT3_NUM_INSTANCES:
 230                 si_dump_reg(f, R_030934_VGT_NUM_INSTANCES, ib[1], ~0);
 231                 break;
 232         case PKT3_WRITE_DATA:
 233                 si_dump_reg(f, R_370_CONTROL, ib[1], ~0);
 234                 si_dump_reg(f, R_371_DST_ADDR_LO, ib[2], ~0);
 235                 si_dump_reg(f, R_372_DST_ADDR_HI, ib[3], ~0);
 236                 for (i = 2; i < count; i++) {
 237                         print_spaces(f, INDENT_PKT);
 238                         fprintf(f, "0x%08x\n", ib[2+i]);
 239                 }
 240                 break;
 241         case PKT3_CP_DMA:
 242                 si_dump_reg(f, R_410_CP_DMA_WORD0, ib[1], ~0);
 243                 si_dump_reg(f, R_411_CP_DMA_WORD1, ib[2], ~0);
 244                 si_dump_reg(f, R_412_CP_DMA_WORD2, ib[3], ~0);
 245                 si_dump_reg(f, R_413_CP_DMA_WORD3, ib[4], ~0);
 246                 si_dump_reg(f, R_414_COMMAND, ib[5], ~0);
 247                 break;
 248         case PKT3_DMA_DATA:
 249                 si_dump_reg(f, R_500_DMA_DATA_WORD0, ib[1], ~0);
 250                 si_dump_reg(f, R_501_SRC_ADDR_LO, ib[2], ~0);
 251                 si_dump_reg(f, R_502_SRC_ADDR_HI, ib[3], ~0);
 252                 si_dump_reg(f, R_503_DST_ADDR_LO, ib[4], ~0);
 253                 si_dump_reg(f, R_504_DST_ADDR_HI, ib[5], ~0);
 254                 si_dump_reg(f, R_414_COMMAND, ib[6], ~0);
 255                 break;
 256         case PKT3_NOP:
 257                 if (ib[0] == 0xffff1000) {
 258                         count = -1; /* One dword NOP. */
 259                         break;
 260                 } else if (count == 0 && SI_IS_TRACE_POINT(ib[1])) {
 261                         unsigned packet_id = SI_GET_TRACE_POINT_ID(ib[1]);
 262
 263                         print_spaces(f, INDENT_PKT);
 264                         fprintf(f, COLOR_RED "Trace point ID: %u\n", packet_id);
 265
 266                         if (trace_id == -1)
 267                                 break; /* tracing was disabled */
 268
 269                         print_spaces(f, INDENT_PKT);
 270                         if (packet_id < trace_id)
 271                                 fprintf(f, COLOR_RED
 272                                         "This trace point was reached by the CP."
 273                                         COLOR_RESET "\n");
 274                         else if (packet_id == trace_id)
 275                                 fprintf(f, COLOR_RED
 276                                         "!!!!! This is the last trace point that "
 277                                         "was reached by the CP !!!!!"
 278                                         COLOR_RESET "\n");
 279                         else if (packet_id+1 == trace_id)
 280                                 fprintf(f, COLOR_RED
 281                                         "!!!!! This is the first trace point that "
 282                                         "was NOT been reached by the CP !!!!!"
 283                                         COLOR_RESET "\n");
 284                         else
 285                                 fprintf(f, COLOR_RED
 286                                         "!!!!! This trace point was NOT reached "
 287                                         "by the CP !!!!!"
 288                                         COLOR_RESET "\n");
 289                         break;
 290                 }
 291                 /* fall through, print all dwords */
 292         default:
 293                 for (i = 0; i < count+1; i++) {
 294                         print_spaces(f, INDENT_PKT);
 295                         fprintf(f, "0x%08x\n", ib[1+i]);
 296                 }
 297         }
 298
 299         ib += count + 2;
 300         *num_dw -= count + 2;
 301         return ib;
 302 }
 303
 304 /**
 305  * Parse and print an IB into a file.
 306  *
 307  * \param f             file
 308  * \param ib            IB
 309  * \param num_dw        size of the IB
 310  * \param chip_class    chip class
 311  * \param trace_id      the last trace ID that is known to have been reached
 312  *                      and executed by the CP, typically read from a buffer
 313  */
 314 static void si_parse_ib(FILE *f, uint32_t *ib, int num_dw, int trace_id)
 315 {
 316         fprintf(f, "------------------ IB begin ------------------\n");
 317
 318         while (num_dw > 0) {
 319                 unsigned type = PKT_TYPE_G(ib[0]);
 320
 321                 switch (type) {
 322                 case 3:
 323                         ib = si_parse_packet3(f, ib, &num_dw, trace_id);
 324                         break;
 325                 case 2:
 326                         /* type-2 nop */
 327                         if (ib[0] == 0x80000000) {
 328                                 fprintf(f, COLOR_GREEN "NOP (type 2)" COLOR_RESET "\n");
 329                                 ib++;
 330                                 break;
 331                         }
 332                         /* fall through */
 333                 default:
 334                         fprintf(f, "Unknown packet type %i\n", type);
 335                         return;
 336                 }
 337         }
 338
 339         fprintf(f, "------------------- IB end -------------------\n");
 340         if (num_dw < 0) {
 341                 printf("Packet ends after the end of IB.\n");
 342                 exit(0);
 343         }
 344 }
 345
 346 static void si_dump_mmapped_reg(struct si_context *sctx, FILE *f,
 347                                 unsigned offset)
 348 {
 349         struct radeon_winsys *ws = sctx->b.ws;
 350         uint32_t value;
 351
 352         if (ws->read_registers(ws, offset, 1, &value))
 353                 si_dump_reg(f, offset, value, ~0);
 354 }
 355
 356 static void si_dump_debug_registers(struct si_context *sctx, FILE *f)
 357 {
 358         if (sctx->screen->b.info.drm_major == 2 &&
 359             sctx->screen->b.info.drm_minor < 42)
 360                 return; /* no radeon support */
 361
 362         fprintf(f, "Memory-mapped registers:\n");
 363         si_dump_mmapped_reg(sctx, f, R_008010_GRBM_STATUS);
 364
 365         /* No other registers can be read on DRM < 3.1.0. */
 366         if (sctx->screen->b.info.drm_major < 3 ||
 367             sctx->screen->b.info.drm_minor < 1) {
 368                 fprintf(f, "\n");
 369                 return;
 370         }
 371
 372         si_dump_mmapped_reg(sctx, f, R_008008_GRBM_STATUS2);
 373         si_dump_mmapped_reg(sctx, f, R_008014_GRBM_STATUS_SE0);
 374         si_dump_mmapped_reg(sctx, f, R_008018_GRBM_STATUS_SE1);
 375         si_dump_mmapped_reg(sctx, f, R_008038_GRBM_STATUS_SE2);
 376         si_dump_mmapped_reg(sctx, f, R_00803C_GRBM_STATUS_SE3);
 377         si_dump_mmapped_reg(sctx, f, R_00D034_SDMA0_STATUS_REG);
 378         si_dump_mmapped_reg(sctx, f, R_00D834_SDMA1_STATUS_REG);
 379         si_dump_mmapped_reg(sctx, f, R_000E50_SRBM_STATUS);
 380         si_dump_mmapped_reg(sctx, f, R_000E4C_SRBM_STATUS2);
 381         si_dump_mmapped_reg(sctx, f, R_000E54_SRBM_STATUS3);
 382         si_dump_mmapped_reg(sctx, f, R_008680_CP_STAT);
 383         si_dump_mmapped_reg(sctx, f, R_008674_CP_STALLED_STAT1);
 384         si_dump_mmapped_reg(sctx, f, R_008678_CP_STALLED_STAT2);
 385         si_dump_mmapped_reg(sctx, f, R_008670_CP_STALLED_STAT3);
 386         si_dump_mmapped_reg(sctx, f, R_008210_CP_CPC_STATUS);
 387         si_dump_mmapped_reg(sctx, f, R_008214_CP_CPC_BUSY_STAT);
 388         si_dump_mmapped_reg(sctx, f, R_008218_CP_CPC_STALLED_STAT1);
 389         si_dump_mmapped_reg(sctx, f, R_00821C_CP_CPF_STATUS);
 390         si_dump_mmapped_reg(sctx, f, R_008220_CP_CPF_BUSY_STAT);
 391         si_dump_mmapped_reg(sctx, f, R_008224_CP_CPF_STALLED_STAT1);
 392         fprintf(f, "\n");
 393 }
 394
 395 static void si_dump_debug_state(struct pipe_context *ctx, FILE *f,
 396                                 unsigned flags)
 397 {
 398         struct si_context *sctx = (struct si_context*)ctx;
 399
 400         if (flags & PIPE_DEBUG_DEVICE_IS_HUNG)
 401                 si_dump_debug_registers(sctx, f);
 402
 403         si_dump_shader(sctx->vs_shader, "Vertex", f);
 404         si_dump_shader(sctx->tcs_shader, "Tessellation control", f);
 405         si_dump_shader(sctx->tes_shader, "Tessellation evaluation", f);
 406         si_dump_shader(sctx->gs_shader, "Geometry", f);
 407         si_dump_shader(sctx->ps_shader, "Fragment", f);
 408
 409         if (sctx->last_ib) {
 410                 int last_trace_id = -1;
 411
 412                 if (sctx->last_trace_buf) {
 413                         /* We are expecting that the ddebug pipe has already
 414                          * waited for the context, so this buffer should be idle.
 415                          * If the GPU is hung, there is no point in waiting for it.
 416                          */
 417                         uint32_t *map =
 418                                 sctx->b.ws->buffer_map(sctx->last_trace_buf->cs_buf,
 419                                                        NULL,
 420                                                        PIPE_TRANSFER_UNSYNCHRONIZED |
 421                                                        PIPE_TRANSFER_READ);
 422                         if (map)
 423                                 last_trace_id = *map;
 424                 }
 425
 426                 si_parse_ib(f, sctx->last_ib, sctx->last_ib_dw_size,
 427                             last_trace_id);
 428                 free(sctx->last_ib); /* dump only once */
 429                 sctx->last_ib = NULL;
 430                 r600_resource_reference(&sctx->last_trace_buf, NULL);
 431         }
 432
 433         fprintf(f, "Done.\n");
 434 }
 435
 436 void si_init_debug_functions(struct si_context *sctx)
 437 {
 438         sctx->b.b.dump_debug_state = si_dump_debug_state;
 439 }