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Member "mesa-20.1.8/src/gallium/drivers/r600/eg_debug.c" (16 Sep 2020, 10611 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    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 #include "r600_pipe.h"
   27 #include "evergreend.h"
   28 
   29 #include "egd_tables.h"
   30 
   31 #define AC_IS_TRACE_POINT(x)            (((x) & 0xcafe0000) == 0xcafe0000)
   32 #define AC_GET_TRACE_POINT_ID(x)        ((x) & 0xffff)
   33 
   34 /* Parsed IBs are difficult to read without colors. Use "less -R file" to
   35  * read them, or use "aha -b -f file" to convert them to html.
   36  */
   37 #define COLOR_RESET "\033[0m"
   38 #define COLOR_RED   "\033[31m"
   39 #define COLOR_GREEN "\033[1;32m"
   40 #define COLOR_YELLOW    "\033[1;33m"
   41 #define COLOR_CYAN  "\033[1;36m"
   42 
   43 #define INDENT_PKT 8
   44 
   45 typedef void *(*ac_debug_addr_callback)(void *data, uint64_t addr);
   46 static void print_spaces(FILE *f, unsigned num)
   47 {
   48     fprintf(f, "%*s", num, "");
   49 }
   50 
   51 static void print_value(FILE *file, uint32_t value, int bits)
   52 {
   53     /* Guess if it's int or float */
   54     if (value <= (1 << 15)) {
   55         if (value <= 9)
   56             fprintf(file, "%u\n", value);
   57         else
   58             fprintf(file, "%u (0x%0*x)\n", value, bits / 4, value);
   59     } else {
   60         float f = uif(value);
   61 
   62         if (fabs(f) < 100000 && f*10 == floor(f*10))
   63             fprintf(file, "%.1ff (0x%0*x)\n", f, bits / 4, value);
   64         else
   65             /* Don't print more leading zeros than there are bits. */
   66             fprintf(file, "0x%0*x\n", bits / 4, value);
   67     }
   68 }
   69 
   70 static void print_named_value(FILE *file, const char *name, uint32_t value,
   71                   int bits)
   72 {
   73     print_spaces(file, INDENT_PKT);
   74     fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ", name);
   75     print_value(file, value, bits);
   76 }
   77 
   78 static void eg_dump_reg(FILE *file, unsigned offset, uint32_t value,
   79             uint32_t field_mask)
   80 {
   81     unsigned r, f;
   82 
   83     for (r = 0; r < ARRAY_SIZE(egd_reg_table); r++) {
   84         const struct eg_reg *reg = &egd_reg_table[r];
   85         const char *reg_name = egd_strings + reg->name_offset;
   86 
   87         if (reg->offset == offset) {
   88             bool first_field = true;
   89 
   90             print_spaces(file, INDENT_PKT);
   91             fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ",
   92                 reg_name);
   93 
   94             if (!reg->num_fields) {
   95                 print_value(file, value, 32);
   96                 return;
   97             }
   98 
   99             for (f = 0; f < reg->num_fields; f++) {
  100                 const struct eg_field *field = egd_fields_table + reg->fields_offset + f;
  101                 const int *values_offsets = egd_strings_offsets + field->values_offset;
  102                 uint32_t val = (value & field->mask) >>
  103                            (ffs(field->mask) - 1);
  104 
  105                 if (!(field->mask & field_mask))
  106                     continue;
  107 
  108                 /* Indent the field. */
  109                 if (!first_field)
  110                     print_spaces(file,
  111                              INDENT_PKT + strlen(reg_name) + 4);
  112 
  113                 /* Print the field. */
  114                 fprintf(file, "%s = ", egd_strings + field->name_offset);
  115 
  116                 if (val < field->num_values && values_offsets[val] >= 0)
  117                     fprintf(file, "%s\n", egd_strings + values_offsets[val]);
  118                 else
  119                     print_value(file, val,
  120                             util_bitcount(field->mask));
  121 
  122                 first_field = false;
  123             }
  124             return;
  125         }
  126     }
  127 
  128     print_spaces(file, INDENT_PKT);
  129     fprintf(file, COLOR_YELLOW "0x%05x" COLOR_RESET " <- 0x%08x\n", offset, value);
  130 }
  131 
  132 
  133 static void ac_parse_set_reg_packet(FILE *f, uint32_t *ib, unsigned count,
  134                     unsigned reg_offset)
  135 {
  136     unsigned reg = (ib[1] << 2) + reg_offset;
  137     unsigned i;
  138 
  139     for (i = 0; i < count; i++)
  140         eg_dump_reg(f, reg + i*4, ib[2+i], ~0);
  141 }
  142 
  143 static uint32_t *ac_parse_packet3(FILE *f, uint32_t *ib, int *num_dw,
  144                   int trace_id, enum chip_class chip_class,
  145                   ac_debug_addr_callback addr_callback,
  146                   void *addr_callback_data)
  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     const char *compute_mode = (ib[0] & 0x2) ? "(C)" : "";
  152     unsigned i;
  153 
  154     /* Print the name first. */
  155     for (i = 0; i < ARRAY_SIZE(packet3_table); i++)
  156         if (packet3_table[i].op == op)
  157             break;
  158 
  159     if (i < ARRAY_SIZE(packet3_table)) {
  160         const char *name = egd_strings + packet3_table[i].name_offset;
  161 
  162         if (op == PKT3_SET_CONTEXT_REG ||
  163             op == PKT3_SET_CONFIG_REG ||
  164             op == PKT3_SET_UCONFIG_REG ||
  165             op == PKT3_SET_SH_REG)
  166             fprintf(f, COLOR_CYAN "%s%s%s" COLOR_CYAN ":\n",
  167                 name, compute_mode, predicate);
  168         else
  169             fprintf(f, COLOR_GREEN "%s%s%s" COLOR_RESET ":\n",
  170                 name, compute_mode, predicate);
  171     } else
  172         fprintf(f, COLOR_RED "PKT3_UNKNOWN 0x%x%s%s" COLOR_RESET ":\n",
  173             op, compute_mode, predicate);
  174 
  175     /* Print the contents. */
  176     switch (op) {
  177     case PKT3_SET_CONTEXT_REG:
  178         ac_parse_set_reg_packet(f, ib, count, EVERGREEN_CONTEXT_REG_OFFSET);
  179         break;
  180     case PKT3_SET_CONFIG_REG:
  181         ac_parse_set_reg_packet(f, ib, count, EVERGREEN_CONFIG_REG_OFFSET);
  182         break;
  183     case PKT3_SURFACE_SYNC:
  184         eg_dump_reg(f, R_0085F0_CP_COHER_CNTL, ib[1], ~0);
  185         eg_dump_reg(f, R_0085F4_CP_COHER_SIZE, ib[2], ~0);
  186         eg_dump_reg(f, R_0085F8_CP_COHER_BASE, ib[3], ~0);
  187         print_named_value(f, "POLL_INTERVAL", ib[4], 16);
  188         break;
  189     case PKT3_EVENT_WRITE:
  190         /* TODO dump VGT_EVENT_INITIATOR */
  191 #if 0
  192         eg_dump_reg(f, R_028A90_VGT_EVENT_INITIATOR, ib[1],
  193                 S_028A90_EVENT_TYPE(~0));
  194 #endif
  195         print_named_value(f, "EVENT_TYPE", ib[1] & 0xff, 8);
  196         print_named_value(f, "EVENT_INDEX", (ib[1] >> 8) & 0xf, 4);
  197         print_named_value(f, "INV_L2", (ib[1] >> 20) & 0x1, 1);
  198         if (count > 0) {
  199             print_named_value(f, "ADDRESS_LO", ib[2], 32);
  200             print_named_value(f, "ADDRESS_HI", ib[3], 16);
  201         }
  202         break;
  203     case PKT3_DRAW_INDEX_AUTO:
  204         eg_dump_reg(f, R_008970_VGT_NUM_INDICES, ib[1], ~0);
  205         eg_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[2], ~0);
  206         break;
  207     case PKT3_DRAW_INDEX_2:
  208         eg_dump_reg(f, R_028A78_VGT_DMA_MAX_SIZE, ib[1], ~0);
  209         eg_dump_reg(f, R_0287E8_VGT_DMA_BASE, ib[2], ~0);
  210         eg_dump_reg(f, R_0287E4_VGT_DMA_BASE_HI, ib[3], ~0);
  211         eg_dump_reg(f, R_008970_VGT_NUM_INDICES, ib[4], ~0);
  212         eg_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[5], ~0);
  213         break;
  214     case PKT3_INDEX_TYPE:
  215         eg_dump_reg(f, R_028A7C_VGT_DMA_INDEX_TYPE, ib[1], ~0);
  216         break;
  217     case PKT3_NUM_INSTANCES:
  218         eg_dump_reg(f, R_028A88_VGT_NUM_INSTANCES, ib[1], ~0);
  219         break;
  220     case PKT3_INDIRECT_BUFFER:
  221         break;
  222     case PKT3_PFP_SYNC_ME:
  223         break;
  224     case PKT3_NOP:
  225         if (ib[0] == 0xffff1000) {
  226             count = -1; /* One dword NOP. */
  227             break;
  228         } else if (count == 0 && AC_IS_TRACE_POINT(ib[1])) {
  229             unsigned packet_id = AC_GET_TRACE_POINT_ID(ib[1]);
  230 
  231             print_spaces(f, INDENT_PKT);
  232             fprintf(f, COLOR_RED "Trace point ID: %u\n", packet_id);
  233 
  234             if (trace_id == -1)
  235                 break; /* tracing was disabled */
  236 
  237             print_spaces(f, INDENT_PKT);
  238             if (packet_id < trace_id)
  239                 fprintf(f, COLOR_RED
  240                     "This trace point was reached by the CP."
  241                     COLOR_RESET "\n");
  242             else if (packet_id == trace_id)
  243                 fprintf(f, COLOR_RED
  244                     "!!!!! This is the last trace point that "
  245                     "was reached by the CP !!!!!"
  246                     COLOR_RESET "\n");
  247             else if (packet_id+1 == trace_id)
  248                 fprintf(f, COLOR_RED
  249                     "!!!!! This is the first trace point that "
  250                     "was NOT been reached by the CP !!!!!"
  251                     COLOR_RESET "\n");
  252             else
  253                 fprintf(f, COLOR_RED
  254                     "!!!!! This trace point was NOT reached "
  255                     "by the CP !!!!!"
  256                     COLOR_RESET "\n");
  257             break;
  258         }
  259         /* fall through, print all dwords */
  260     default:
  261         for (i = 0; i < count+1; i++) {
  262             print_spaces(f, INDENT_PKT);
  263             fprintf(f, "0x%08x\n", ib[1+i]);
  264         }
  265     }
  266 
  267     ib += count + 2;
  268     *num_dw -= count + 2;
  269     return ib;
  270 }
  271 
  272 /**
  273  * Parse and print an IB into a file.
  274  *
  275  * \param f     file
  276  * \param ib        IB
  277  * \param num_dw    size of the IB
  278  * \param chip_class    chip class
  279  * \param trace_id  the last trace ID that is known to have been reached
  280  *          and executed by the CP, typically read from a buffer
  281  * \param addr_callback Get a mapped pointer of the IB at a given address. Can
  282  *                      be NULL.
  283  * \param addr_callback_data user data for addr_callback
  284  */
  285 static void eg_parse_ib(FILE *f, uint32_t *ib, int num_dw, int trace_id,
  286             const char *name, enum chip_class chip_class,
  287             ac_debug_addr_callback addr_callback, void *addr_callback_data)
  288 {
  289     fprintf(f, "------------------ %s begin ------------------\n", name);
  290 
  291     while (num_dw > 0) {
  292         unsigned type = PKT_TYPE_G(ib[0]);
  293 
  294         switch (type) {
  295         case 3:
  296             ib = ac_parse_packet3(f, ib, &num_dw, trace_id,
  297                           chip_class, addr_callback,
  298                           addr_callback_data);
  299             break;
  300         case 2:
  301             /* type-2 nop */
  302             if (ib[0] == 0x80000000) {
  303                 fprintf(f, COLOR_GREEN "NOP (type 2)" COLOR_RESET "\n");
  304                 ib++;
  305                 num_dw--;
  306                 break;
  307             }
  308             /* fall through */
  309         default:
  310             fprintf(f, "Unknown packet type %i\n", type);
  311             return;
  312         }
  313     }
  314 
  315     fprintf(f, "------------------- %s end -------------------\n", name);
  316     if (num_dw < 0) {
  317         printf("Packet ends after the end of IB.\n");
  318         exit(0);
  319     }
  320     fprintf(f, "\n");
  321 }
  322 
  323 static void eg_dump_last_ib(struct r600_context *rctx, FILE *f)
  324 {
  325     int last_trace_id = -1;
  326 
  327     if (!rctx->last_gfx.ib)
  328         return;
  329 
  330     if (rctx->last_trace_buf) {
  331         /* We are expecting that the ddebug pipe has already
  332          * waited for the context, so this buffer should be idle.
  333          * If the GPU is hung, there is no point in waiting for it.
  334          */
  335         uint32_t *map = rctx->b.ws->buffer_map(rctx->last_trace_buf->buf,
  336                                NULL,
  337                                PIPE_TRANSFER_UNSYNCHRONIZED |
  338                                PIPE_TRANSFER_READ);
  339         if (map)
  340             last_trace_id = *map;
  341     }
  342 
  343     eg_parse_ib(f, rctx->last_gfx.ib, rctx->last_gfx.num_dw,
  344             last_trace_id, "IB", rctx->b.chip_class,
  345              NULL, NULL);
  346 }
  347 
  348 
  349 void eg_dump_debug_state(struct pipe_context *ctx, FILE *f,
  350              unsigned flags)
  351 {
  352     struct r600_context *rctx = (struct r600_context*)ctx;
  353 
  354     eg_dump_last_ib(rctx, f);
  355 
  356     fprintf(f, "Done.\n");
  357 
  358     /* dump only once */
  359     radeon_clear_saved_cs(&rctx->last_gfx);
  360     r600_resource_reference(&rctx->last_trace_buf, NULL);
  361 }