src/gallium/drivers/freedreno/ir3/ir3_cmdline.c

   1 /*
   2  * Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
   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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  21  * SOFTWARE.
  22  *
  23  * Authors:
  24  *    Rob Clark <robclark@freedesktop.org>
  25  */
  26
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <sys/mman.h>
  30 #include <fcntl.h>
  31 #include <stdint.h>
  32 #include <stdlib.h>
  33 #include <err.h>
  34
  35 #include "tgsi/tgsi_parse.h"
  36 #include "tgsi/tgsi_text.h"
  37 #include "tgsi/tgsi_dump.h"
  38
  39 #include "freedreno_util.h"
  40
  41 #include "ir3_compiler.h"
  42 #include "instr-a3xx.h"
  43 #include "ir3.h"
  44
  45 static void dump_info(struct ir3_shader_variant *so, const char *str)
  46 {
  47         struct ir3_info info;
  48         uint32_t *bin;
  49         const char *type = (so->type == SHADER_VERTEX) ? "VERT" : "FRAG";
  50
  51         // for debug, dump some before/after info:
  52         // TODO make gpu_id configurable on cmdline
  53         bin = ir3_assemble(so->ir, &info, 320);
  54         if (fd_mesa_debug & FD_DBG_DISASM) {
  55                 struct ir3_block *block = so->ir->block;
  56                 struct ir3_register *reg;
  57                 uint8_t regid;
  58                 unsigned i;
  59
  60                 debug_printf("; %s: %s\n", type, str);
  61
  62 if (block) {
  63                 for (i = 0; i < block->ninputs; i++) {
  64                         if (!block->inputs[i]) {
  65                                 debug_printf("; in%d unused\n", i);
  66                                 continue;
  67                         }
  68                         reg = block->inputs[i]->regs[0];
  69                         regid = reg->num;
  70                         debug_printf("@in(%sr%d.%c)\tin%d\n",
  71                                         (reg->flags & IR3_REG_HALF) ? "h" : "",
  72                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  73                 }
  74
  75                 for (i = 0; i < block->noutputs; i++) {
  76                         if (!block->outputs[i]) {
  77                                 debug_printf("; out%d unused\n", i);
  78                                 continue;
  79                         }
  80                         /* kill shows up as a virtual output.. skip it! */
  81                         if (is_kill(block->outputs[i]))
  82                                 continue;
  83                         reg = block->outputs[i]->regs[0];
  84                         regid = reg->num;
  85                         debug_printf("@out(%sr%d.%c)\tout%d\n",
  86                                         (reg->flags & IR3_REG_HALF) ? "h" : "",
  87                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  88                 }
  89 } else {
  90                 /* hack to deal w/ old compiler:
  91                  * TODO maybe we can just keep this path?  I guess should
  92                  * be good enough (other than not able to deal w/ half)
  93                  */
  94                 for (i = 0; i < so->inputs_count; i++) {
  95                         unsigned j, regid = so->inputs[i].regid;
  96                         for (j = 0; j < so->inputs[i].ncomp; j++) {
  97                                 debug_printf("@in(r%d.%c)\tin%d\n",
  98                                                 (regid >> 2), "xyzw"[regid & 0x3], (i * 4) + j);
  99                                 regid++;
 100                         }
 101                 }
 102                 for (i = 0; i < so->outputs_count; i++) {
 103                         unsigned j, regid = so->outputs[i].regid;
 104                         for (j = 0; j < 4; j++) {
 105                                 debug_printf("@out(r%d.%c)\tout%d\n",
 106                                                 (regid >> 2), "xyzw"[regid & 0x3], (i * 4) + j);
 107                                 regid++;
 108                         }
 109                 }
 110 }
 111
 112                 disasm_a3xx(bin, info.sizedwords, 0, so->type);
 113
 114                 debug_printf("; %s: outputs:", type);
 115                 for (i = 0; i < so->outputs_count; i++) {
 116                         uint8_t regid = so->outputs[i].regid;
 117                         ir3_semantic sem = so->outputs[i].semantic;
 118                         debug_printf(" r%d.%c (%u:%u)",
 119                                         (regid >> 2), "xyzw"[regid & 0x3],
 120                                         sem2name(sem), sem2idx(sem));
 121                 }
 122                 debug_printf("\n");
 123                 debug_printf("; %s: inputs:", type);
 124                 for (i = 0; i < so->inputs_count; i++) {
 125                         uint8_t regid = so->inputs[i].regid;
 126                         ir3_semantic sem = so->inputs[i].semantic;
 127                         debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
 128                                         (regid >> 2), "xyzw"[regid & 0x3],
 129                                         sem2name(sem), sem2idx(sem),
 130                                         so->inputs[i].compmask,
 131                                         so->inputs[i].inloc,
 132                                         so->inputs[i].bary);
 133                 }
 134                 debug_printf("\n");
 135         }
 136         debug_printf("; %s: %u instructions, %d half, %d full\n\n",
 137                         type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
 138         free(bin);
 139 }
 140
 141
 142 static int
 143 read_file(const char *filename, void **ptr, size_t *size)
 144 {
 145         int fd, ret;
 146         struct stat st;
 147
 148         *ptr = MAP_FAILED;
 149
 150         fd = open(filename, O_RDONLY);
 151         if (fd == -1) {
 152                 warnx("couldn't open `%s'", filename);
 153                 return 1;
 154         }
 155
 156         ret = fstat(fd, &st);
 157         if (ret)
 158                 errx(1, "couldn't stat `%s'", filename);
 159
 160         *size = st.st_size;
 161         *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
 162         if (*ptr == MAP_FAILED)
 163                 errx(1, "couldn't map `%s'", filename);
 164
 165         close(fd);
 166
 167         return 0;
 168 }
 169
 170 static void reset_variant(struct ir3_shader_variant *v, const char *msg)
 171 {
 172         debug_error(msg);
 173         v->inputs_count = 0;
 174         v->outputs_count = 0;
 175         v->total_in = 0;
 176         v->has_samp = false;
 177         v->immediates_count = 0;
 178 }
 179
 180 static void print_usage(void)
 181 {
 182         printf("Usage: ir3_compiler [OPTIONS]... FILE\n");
 183         printf("    --verbose         - verbose compiler/debug messages\n");
 184         printf("    --binning-pass    - generate binning pass shader (VERT)\n");
 185         printf("    --color-two-side  - emulate two-sided color (FRAG)\n");
 186         printf("    --half-precision  - use half-precision\n");
 187         printf("    --alpha           - generate render-to-alpha shader (FRAG)\n");
 188         printf("    --saturate-s MASK - bitmask of samplers to saturate S coord\n");
 189         printf("    --saturate-t MASK - bitmask of samplers to saturate T coord\n");
 190         printf("    --saturate-r MASK - bitmask of samplers to saturate R coord\n");
 191         printf("    --nocp            - disable copy propagation\n");
 192         printf("    --help            - show this message\n");
 193 }
 194
 195 int main(int argc, char **argv)
 196 {
 197         int ret = 0, n = 1;
 198         const char *filename;
 199         struct tgsi_token toks[65536];
 200         struct tgsi_parse_context parse;
 201         struct ir3_shader_variant v;
 202         struct ir3_shader_key key = {};
 203         const char *info;
 204         void *ptr;
 205         size_t size;
 206
 207         fd_mesa_debug |= FD_DBG_DISASM;
 208
 209         /* cmdline args which impact shader variant get spit out in a
 210          * comment on the first line..  a quick/dirty way to preserve
 211          * that info so when ir3test recompiles the shader with a new
 212          * compiler version, we use the same shader-key settings:
 213          */
 214         debug_printf("; options:");
 215
 216         while (n < argc) {
 217                 if (!strcmp(argv[n], "--verbose")) {
 218                         fd_mesa_debug |=  FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
 219                         n++;
 220                         continue;
 221                 }
 222
 223                 if (!strcmp(argv[n], "--binning-pass")) {
 224                         debug_printf(" %s", argv[n]);
 225                         key.binning_pass = true;
 226                         n++;
 227                         continue;
 228                 }
 229
 230                 if (!strcmp(argv[n], "--color-two-side")) {
 231                         debug_printf(" %s", argv[n]);
 232                         key.color_two_side = true;
 233                         n++;
 234                         continue;
 235                 }
 236
 237                 if (!strcmp(argv[n], "--half-precision")) {
 238                         debug_printf(" %s", argv[n]);
 239                         key.half_precision = true;
 240                         n++;
 241                         continue;
 242                 }
 243
 244                 if (!strcmp(argv[n], "--alpha")) {
 245                         debug_printf(" %s", argv[n]);
 246                         key.alpha = true;
 247                         n++;
 248                         continue;
 249                 }
 250
 251                 if (!strcmp(argv[n], "--saturate-s")) {
 252                         debug_printf(" %s %s", argv[n], argv[n+1]);
 253                         key.vsaturate_s = key.fsaturate_s = strtol(argv[n+1], NULL, 0);
 254                         n += 2;
 255                         continue;
 256                 }
 257
 258                 if (!strcmp(argv[n], "--saturate-t")) {
 259                         debug_printf(" %s %s", argv[n], argv[n+1]);
 260                         key.vsaturate_t = key.fsaturate_t = strtol(argv[n+1], NULL, 0);
 261                         n += 2;
 262                         continue;
 263                 }
 264
 265                 if (!strcmp(argv[n], "--saturate-r")) {
 266                         debug_printf(" %s %s", argv[n], argv[n+1]);
 267                         key.vsaturate_r = key.fsaturate_r = strtol(argv[n+1], NULL, 0);
 268                         n += 2;
 269                         continue;
 270                 }
 271
 272                 if (!strcmp(argv[n], "--nocp")) {
 273                         fd_mesa_debug |= FD_DBG_NOCP;
 274                         n++;
 275                         continue;
 276                 }
 277
 278                 if (!strcmp(argv[n], "--help")) {
 279                         print_usage();
 280                         return 0;
 281                 }
 282
 283                 break;
 284         }
 285         debug_printf("\n");
 286
 287         filename = argv[n];
 288
 289         memset(&v, 0, sizeof(v));
 290         v.key = key;
 291
 292         ret = read_file(filename, &ptr, &size);
 293         if (ret) {
 294                 print_usage();
 295                 return ret;
 296         }
 297
 298         if (!tgsi_text_translate(ptr, toks, Elements(toks)))
 299                 errx(1, "could not parse `%s'", filename);
 300
 301         tgsi_parse_init(&parse, toks);
 302         switch (parse.FullHeader.Processor.Processor) {
 303         case TGSI_PROCESSOR_FRAGMENT:
 304                 v.type = SHADER_FRAGMENT;
 305                 break;
 306         case TGSI_PROCESSOR_VERTEX:
 307                 v.type = SHADER_VERTEX;
 308                 break;
 309         case TGSI_PROCESSOR_COMPUTE:
 310                 v.type = SHADER_COMPUTE;
 311                 break;
 312         }
 313
 314         if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
 315                 /* with new compiler: */
 316                 info = "new compiler";
 317                 ret = ir3_compile_shader(&v, toks, key, true);
 318
 319                 if (ret) {
 320                         reset_variant(&v, "new compiler failed, trying without copy propagation!");
 321                         info = "new compiler (no copy propagation)";
 322                         ret = ir3_compile_shader(&v, toks, key, false);
 323                         if (ret)
 324                                 reset_variant(&v, "new compiler failed, trying fallback!\n");
 325                 }
 326         }
 327
 328         if (ret) {
 329                 info = "old compiler";
 330                 ret = ir3_compile_shader_old(&v, toks, key);
 331         }
 332
 333         if (ret) {
 334                 fprintf(stderr, "old compiler failed!\n");
 335                 return ret;
 336         }
 337         dump_info(&v, info);
 338 }