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                         /* kill shows up as a virtual output.. skip it! */
  73                         if (is_kill(block->outputs[i]))
  74                                 continue;
  75                         regid = block->outputs[i]->regs[0]->num;
  76                         debug_printf("@out(r%d.%c)\tout%d\n",
  77                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  78                 }
  79
  80                 disasm_a3xx(bin, info.sizedwords, 0, so->type);
  81
  82                 debug_printf("; %s: outputs:", type);
  83                 for (i = 0; i < so->outputs_count; i++) {
  84                         uint8_t regid = so->outputs[i].regid;
  85                         ir3_semantic sem = so->outputs[i].semantic;
  86                         debug_printf(" r%d.%c (%u:%u)",
  87                                         (regid >> 2), "xyzw"[regid & 0x3],
  88                                         sem2name(sem), sem2idx(sem));
  89                 }
  90                 debug_printf("\n");
  91                 debug_printf("; %s: inputs:", type);
  92                 for (i = 0; i < so->inputs_count; i++) {
  93                         uint8_t regid = so->inputs[i].regid;
  94                         ir3_semantic sem = so->inputs[i].semantic;
  95                         debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
  96                                         (regid >> 2), "xyzw"[regid & 0x3],
  97                                         sem2name(sem), sem2idx(sem),
  98                                         so->inputs[i].compmask,
  99                                         so->inputs[i].inloc,
 100                                         so->inputs[i].bary);
 101                 }
 102                 debug_printf("\n");
 103         }
 104         debug_printf("; %s: %u instructions, %d half, %d full\n\n",
 105                         type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
 106         free(bin);
 107 }
 108
 109
 110 static int
 111 read_file(const char *filename, void **ptr, size_t *size)
 112 {
 113         int fd, ret;
 114         struct stat st;
 115
 116         *ptr = MAP_FAILED;
 117
 118         fd = open(filename, O_RDONLY);
 119         if (fd == -1) {
 120                 warnx("couldn't open `%s'", filename);
 121                 return 1;
 122         }
 123
 124         ret = fstat(fd, &st);
 125         if (ret)
 126                 errx(1, "couldn't stat `%s'", filename);
 127
 128         *size = st.st_size;
 129         *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
 130         if (*ptr == MAP_FAILED)
 131                 errx(1, "couldn't map `%s'", filename);
 132
 133         close(fd);
 134
 135         return 0;
 136 }
 137
 138 static void reset_variant(struct ir3_shader_variant *v, const char *msg)
 139 {
 140         debug_error(msg);
 141         v->inputs_count = 0;
 142         v->outputs_count = 0;
 143         v->total_in = 0;
 144         v->has_samp = false;
 145         v->immediates_count = 0;
 146 }
 147
 148 static void print_usage(void)
 149 {
 150         printf("Usage: ir3_compiler [OPTIONS]... FILE\n");
 151         printf("    --verbose         - verbose compiler/debug messages\n");
 152         printf("    --binning-pass    - generate binning pass shader (VERT)\n");
 153         printf("    --color-two-side  - emulate two-sided color (FRAG)\n");
 154         printf("    --half-precision  - use half-precision\n");
 155         printf("    --alpha           - generate render-to-alpha shader (FRAG)\n");
 156         printf("    --saturate-s MASK - bitmask of samplers to saturate S coord\n");
 157         printf("    --saturate-t MASK - bitmask of samplers to saturate T coord\n");
 158         printf("    --saturate-r MASK - bitmask of samplers to saturate R coord\n");
 159         printf("    --nocp            - disable copy propagation\n");
 160         printf("    --help            - show this message\n");
 161 }
 162
 163 int main(int argc, char **argv)
 164 {
 165         int ret = 0, n = 1;
 166         const char *filename;
 167         struct tgsi_token toks[65536];
 168         struct tgsi_parse_context parse;
 169         struct ir3_shader_variant v;
 170         struct ir3_shader_key key = {};
 171         const char *info;
 172         void *ptr;
 173         size_t size;
 174
 175         fd_mesa_debug |= FD_DBG_DISASM;
 176
 177         /* cmdline args which impact shader variant get spit out in a
 178          * comment on the first line..  a quick/dirty way to preserve
 179          * that info so when ir3test recompiles the shader with a new
 180          * compiler version, we use the same shader-key settings:
 181          */
 182         debug_printf("; options:");
 183
 184         while (n < argc) {
 185                 if (!strcmp(argv[n], "--verbose")) {
 186                         fd_mesa_debug |=  FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
 187                         n++;
 188                         continue;
 189                 }
 190
 191                 if (!strcmp(argv[n], "--binning-pass")) {
 192                         debug_printf(" %s", argv[n]);
 193                         key.binning_pass = true;
 194                         n++;
 195                         continue;
 196                 }
 197
 198                 if (!strcmp(argv[n], "--color-two-side")) {
 199                         debug_printf(" %s", argv[n]);
 200                         key.color_two_side = true;
 201                         n++;
 202                         continue;
 203                 }
 204
 205                 if (!strcmp(argv[n], "--half-precision")) {
 206                         debug_printf(" %s", argv[n]);
 207                         key.half_precision = true;
 208                         n++;
 209                         continue;
 210                 }
 211
 212                 if (!strcmp(argv[n], "--alpha")) {
 213                         debug_printf(" %s", argv[n]);
 214                         key.alpha = true;
 215                         n++;
 216                         continue;
 217                 }
 218
 219                 if (!strcmp(argv[n], "--saturate-s")) {
 220                         debug_printf(" %s %s", argv[n], argv[n+1]);
 221                         key.vsaturate_s = key.fsaturate_s = strtol(argv[n+1], NULL, 0);
 222                         n += 2;
 223                         continue;
 224                 }
 225
 226                 if (!strcmp(argv[n], "--saturate-t")) {
 227                         debug_printf(" %s %s", argv[n], argv[n+1]);
 228                         key.vsaturate_t = key.fsaturate_t = strtol(argv[n+1], NULL, 0);
 229                         n += 2;
 230                         continue;
 231                 }
 232
 233                 if (!strcmp(argv[n], "--saturate-r")) {
 234                         debug_printf(" %s %s", argv[n], argv[n+1]);
 235                         key.vsaturate_r = key.fsaturate_r = strtol(argv[n+1], NULL, 0);
 236                         n += 2;
 237                         continue;
 238                 }
 239
 240                 if (!strcmp(argv[n], "--nocp")) {
 241                         fd_mesa_debug |= FD_DBG_NOCP;
 242                         n++;
 243                         continue;
 244                 }
 245
 246                 if (!strcmp(argv[n], "--help")) {
 247                         print_usage();
 248                         return 0;
 249                 }
 250
 251                 break;
 252         }
 253         debug_printf("\n");
 254
 255         filename = argv[n];
 256
 257         memset(&v, 0, sizeof(v));
 258         v.key = key;
 259
 260         ret = read_file(filename, &ptr, &size);
 261         if (ret) {
 262                 print_usage();
 263                 return ret;
 264         }
 265
 266         if (!tgsi_text_translate(ptr, toks, Elements(toks)))
 267                 errx(1, "could not parse `%s'", filename);
 268
 269         tgsi_parse_init(&parse, toks);
 270         switch (parse.FullHeader.Processor.Processor) {
 271         case TGSI_PROCESSOR_FRAGMENT:
 272                 v.type = SHADER_FRAGMENT;
 273                 break;
 274         case TGSI_PROCESSOR_VERTEX:
 275                 v.type = SHADER_VERTEX;
 276                 break;
 277         case TGSI_PROCESSOR_COMPUTE:
 278                 v.type = SHADER_COMPUTE;
 279                 break;
 280         }
 281
 282         if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
 283                 /* with new compiler: */
 284                 info = "new compiler";
 285                 ret = ir3_compile_shader(&v, toks, key, true);
 286
 287                 if (ret) {
 288                         reset_variant(&v, "new compiler failed, trying without copy propagation!");
 289                         info = "new compiler (no copy propagation)";
 290                         ret = ir3_compile_shader(&v, toks, key, false);
 291                         if (ret)
 292                                 reset_variant(&v, "new compiler failed, trying fallback!\n");
 293                 }
 294         }
 295
 296         if (ret) {
 297                 info = "old compiler";
 298                 ret = ir3_compile_shader_old(&v, toks, key);
 299         }
 300
 301         if (ret) {
 302                 fprintf(stderr, "old compiler failed!\n");
 303                 return ret;
 304         }
 305         dump_info(&v, info);
 306 }