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         bin = ir3_assemble(so->ir, &info);
  53         if (fd_mesa_debug & FD_DBG_DISASM) {
  54                 struct ir3_block *block = so->ir->block;
  55                 unsigned i;
  56
  57                 debug_printf("; %s: %s\n", type, str);
  58
  59                 for (i = 0; i < block->ninputs; i++) {
  60                         uint8_t regid;
  61                         if (!block->inputs[i])
  62                                 continue;
  63                         regid = block->inputs[i]->regs[0]->num;
  64                         debug_printf("@in(r%d.%c)\tin%d\n",
  65                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  66                 }
  67
  68                 for (i = 0; i < block->noutputs; i++) {
  69                         uint8_t regid;
  70                         if (!block->outputs[i])
  71                                 continue;
  72                         regid = block->outputs[i]->regs[0]->num;
  73                         debug_printf("@out(r%d.%c)\tout%d\n",
  74                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  75                 }
  76
  77                 disasm_a3xx(bin, info.sizedwords, 0, so->type);
  78
  79                 debug_printf("; %s: outputs:", type);
  80                 for (i = 0; i < so->outputs_count; i++) {
  81                         uint8_t regid = so->outputs[i].regid;
  82                         ir3_semantic sem = so->outputs[i].semantic;
  83                         debug_printf(" r%d.%c (%u:%u)",
  84                                         (regid >> 2), "xyzw"[regid & 0x3],
  85                                         sem2name(sem), sem2idx(sem));
  86                 }
  87                 debug_printf("\n");
  88                 debug_printf("; %s: inputs:", type);
  89                 for (i = 0; i < so->inputs_count; i++) {
  90                         uint8_t regid = so->inputs[i].regid;
  91                         ir3_semantic sem = so->inputs[i].semantic;
  92                         debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
  93                                         (regid >> 2), "xyzw"[regid & 0x3],
  94                                         sem2name(sem), sem2idx(sem),
  95                                         so->inputs[i].compmask,
  96                                         so->inputs[i].inloc,
  97                                         so->inputs[i].bary);
  98                 }
  99                 debug_printf("\n");
 100         }
 101         debug_printf("; %s: %u instructions, %d half, %d full\n\n",
 102                         type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
 103         free(bin);
 104 }
 105
 106
 107 static int
 108 read_file(const char *filename, void **ptr, size_t *size)
 109 {
 110         int fd, ret;
 111         struct stat st;
 112
 113         *ptr = MAP_FAILED;
 114
 115         fd = open(filename, O_RDONLY);
 116         if (fd == -1) {
 117                 warnx("couldn't open `%s'", filename);
 118                 return 1;
 119         }
 120
 121         ret = fstat(fd, &st);
 122         if (ret)
 123                 errx(1, "couldn't stat `%s'", filename);
 124
 125         *size = st.st_size;
 126         *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
 127         if (*ptr == MAP_FAILED)
 128                 errx(1, "couldn't map `%s'", filename);
 129
 130         close(fd);
 131
 132         return 0;
 133 }
 134
 135 static void reset_variant(struct ir3_shader_variant *v, const char *msg)
 136 {
 137         debug_error(msg);
 138         v->inputs_count = 0;
 139         v->outputs_count = 0;
 140         v->total_in = 0;
 141         v->has_samp = false;
 142         v->immediates_count = 0;
 143 }
 144
 145 static void print_usage(void)
 146 {
 147         printf("Usage: ir3_compiler [OPTIONS]... FILE\n");
 148         printf("    --verbose         - verbose compiler/debug messages\n");
 149         printf("    --binning-pass    - generate binning pass shader (VERT)\n");
 150         printf("    --color-two-side  - emulate two-sided color (FRAG)\n");
 151         printf("    --half-precision  - use half-precision\n");
 152         printf("    --alpha           - generate render-to-alpha shader (FRAG)\n");
 153         printf("    --saturate-s MASK - bitmask of samplers to saturate S coord\n");
 154         printf("    --saturate-t MASK - bitmask of samplers to saturate T coord\n");
 155         printf("    --saturate-r MASK - bitmask of samplers to saturate R coord\n");
 156         printf("    --nocp            - disable copy propagation\n");
 157         printf("    --help            - show this message\n");
 158 }
 159
 160 int main(int argc, char **argv)
 161 {
 162         int ret = 0, n = 1;
 163         const char *filename;
 164         struct tgsi_token toks[65536];
 165         struct tgsi_parse_context parse;
 166         struct ir3_shader_variant v;
 167         struct ir3_shader_key key = {};
 168         const char *info;
 169         void *ptr;
 170         size_t size;
 171
 172         fd_mesa_debug |= FD_DBG_DISASM;
 173
 174         /* cmdline args which impact shader variant get spit out in a
 175          * comment on the first line..  a quick/dirty way to preserve
 176          * that info so when ir3test recompiles the shader with a new
 177          * compiler version, we use the same shader-key settings:
 178          */
 179         debug_printf("; options:");
 180
 181         while (n < argc) {
 182                 if (!strcmp(argv[n], "--verbose")) {
 183                         fd_mesa_debug |=  FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
 184                         n++;
 185                         continue;
 186                 }
 187
 188                 if (!strcmp(argv[n], "--binning-pass")) {
 189                         debug_printf(" %s", argv[n]);
 190                         key.binning_pass = true;
 191                         n++;
 192                         continue;
 193                 }
 194
 195                 if (!strcmp(argv[n], "--color-two-side")) {
 196                         debug_printf(" %s", argv[n]);
 197                         key.color_two_side = true;
 198                         n++;
 199                         continue;
 200                 }
 201
 202                 if (!strcmp(argv[n], "--half-precision")) {
 203                         debug_printf(" %s", argv[n]);
 204                         key.half_precision = true;
 205                         n++;
 206                         continue;
 207                 }
 208
 209                 if (!strcmp(argv[n], "--alpha")) {
 210                         debug_printf(" %s", argv[n]);
 211                         key.alpha = true;
 212                         n++;
 213                         continue;
 214                 }
 215
 216                 if (!strcmp(argv[n], "--saturate-s")) {
 217                         debug_printf(" %s %s", argv[n], argv[n+1]);
 218                         key.vsaturate_s = key.fsaturate_s = strtol(argv[n+1], NULL, 0);
 219                         n += 2;
 220                         continue;
 221                 }
 222
 223                 if (!strcmp(argv[n], "--saturate-t")) {
 224                         debug_printf(" %s %s", argv[n], argv[n+1]);
 225                         key.vsaturate_t = key.fsaturate_t = strtol(argv[n+1], NULL, 0);
 226                         n += 2;
 227                         continue;
 228                 }
 229
 230                 if (!strcmp(argv[n], "--saturate-r")) {
 231                         debug_printf(" %s %s", argv[n], argv[n+1]);
 232                         key.vsaturate_r = key.fsaturate_r = strtol(argv[n+1], NULL, 0);
 233                         n += 2;
 234                         continue;
 235                 }
 236
 237                 if (!strcmp(argv[n], "--nocp")) {
 238                         fd_mesa_debug |= FD_DBG_NOCP;
 239                         n++;
 240                         continue;
 241                 }
 242
 243                 if (!strcmp(argv[n], "--help")) {
 244                         print_usage();
 245                         return 0;
 246                 }
 247
 248                 break;
 249         }
 250         debug_printf("\n");
 251
 252         filename = argv[n];
 253
 254         memset(&v, 0, sizeof(v));
 255         v.key = key;
 256
 257         ret = read_file(filename, &ptr, &size);
 258         if (ret) {
 259                 print_usage();
 260                 return ret;
 261         }
 262
 263         if (!tgsi_text_translate(ptr, toks, Elements(toks)))
 264                 errx(1, "could not parse `%s'", filename);
 265
 266         tgsi_parse_init(&parse, toks);
 267         switch (parse.FullHeader.Processor.Processor) {
 268         case TGSI_PROCESSOR_FRAGMENT:
 269                 v.type = SHADER_FRAGMENT;
 270                 break;
 271         case TGSI_PROCESSOR_VERTEX:
 272                 v.type = SHADER_VERTEX;
 273                 break;
 274         case TGSI_PROCESSOR_COMPUTE:
 275                 v.type = SHADER_COMPUTE;
 276                 break;
 277         }
 278
 279         if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
 280                 /* with new compiler: */
 281                 info = "new compiler";
 282                 ret = ir3_compile_shader(&v, toks, key, true);
 283
 284                 if (ret) {
 285                         reset_variant(&v, "new compiler failed, trying without copy propagation!");
 286                         info = "new compiler (no copy propagation)";
 287                         ret = ir3_compile_shader(&v, toks, key, false);
 288                         if (ret)
 289                                 reset_variant(&v, "new compiler failed, trying fallback!\n");
 290                 }
 291         }
 292
 293         if (ret) {
 294                 info = "old compiler";
 295                 ret = ir3_compile_shader_old(&v, toks, key);
 296         }
 297
 298         if (ret) {
 299                 fprintf(stderr, "old compiler failed!\n");
 300                 return ret;
 301         }
 302         dump_info(&v, info);
 303 }