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                 struct ir3_register *reg;
  56                 uint8_t regid;
  57                 unsigned i;
  58
  59                 debug_printf("; %s: %s\n", type, str);
  60
  61                 for (i = 0; i < block->ninputs; i++) {
  62                         if (!block->inputs[i])
  63                                 continue;
  64                         reg = block->inputs[i]->regs[0];
  65                         regid = reg->num;
  66                         debug_printf("@in(%sr%d.%c)\tin%d\n",
  67                                         (reg->flags & IR3_REG_HALF) ? "h" : "",
  68                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  69                 }
  70
  71                 for (i = 0; i < block->noutputs; i++) {
  72                         if (!block->outputs[i])
  73                                 continue;
  74                         /* kill shows up as a virtual output.. skip it! */
  75                         if (is_kill(block->outputs[i]))
  76                                 continue;
  77                         reg = block->outputs[i]->regs[0];
  78                         regid = reg->num;
  79                         debug_printf("@out(%sr%d.%c)\tout%d\n",
  80                                         (reg->flags & IR3_REG_HALF) ? "h" : "",
  81                                         (regid >> 2), "xyzw"[regid & 0x3], i);
  82                 }
  83
  84                 disasm_a3xx(bin, info.sizedwords, 0, so->type);
  85
  86                 debug_printf("; %s: outputs:", type);
  87                 for (i = 0; i < so->outputs_count; i++) {
  88                         uint8_t regid = so->outputs[i].regid;
  89                         ir3_semantic sem = so->outputs[i].semantic;
  90                         debug_printf(" r%d.%c (%u:%u)",
  91                                         (regid >> 2), "xyzw"[regid & 0x3],
  92                                         sem2name(sem), sem2idx(sem));
  93                 }
  94                 debug_printf("\n");
  95                 debug_printf("; %s: inputs:", type);
  96                 for (i = 0; i < so->inputs_count; i++) {
  97                         uint8_t regid = so->inputs[i].regid;
  98                         ir3_semantic sem = so->inputs[i].semantic;
  99                         debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
 100                                         (regid >> 2), "xyzw"[regid & 0x3],
 101                                         sem2name(sem), sem2idx(sem),
 102                                         so->inputs[i].compmask,
 103                                         so->inputs[i].inloc,
 104                                         so->inputs[i].bary);
 105                 }
 106                 debug_printf("\n");
 107         }
 108         debug_printf("; %s: %u instructions, %d half, %d full\n\n",
 109                         type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
 110         free(bin);
 111 }
 112
 113
 114 static int
 115 read_file(const char *filename, void **ptr, size_t *size)
 116 {
 117         int fd, ret;
 118         struct stat st;
 119
 120         *ptr = MAP_FAILED;
 121
 122         fd = open(filename, O_RDONLY);
 123         if (fd == -1) {
 124                 warnx("couldn't open `%s'", filename);
 125                 return 1;
 126         }
 127
 128         ret = fstat(fd, &st);
 129         if (ret)
 130                 errx(1, "couldn't stat `%s'", filename);
 131
 132         *size = st.st_size;
 133         *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
 134         if (*ptr == MAP_FAILED)
 135                 errx(1, "couldn't map `%s'", filename);
 136
 137         close(fd);
 138
 139         return 0;
 140 }
 141
 142 static void reset_variant(struct ir3_shader_variant *v, const char *msg)
 143 {
 144         debug_error(msg);
 145         v->inputs_count = 0;
 146         v->outputs_count = 0;
 147         v->total_in = 0;
 148         v->has_samp = false;
 149         v->immediates_count = 0;
 150 }
 151
 152 static void print_usage(void)
 153 {
 154         printf("Usage: ir3_compiler [OPTIONS]... FILE\n");
 155         printf("    --verbose         - verbose compiler/debug messages\n");
 156         printf("    --binning-pass    - generate binning pass shader (VERT)\n");
 157         printf("    --color-two-side  - emulate two-sided color (FRAG)\n");
 158         printf("    --half-precision  - use half-precision\n");
 159         printf("    --alpha           - generate render-to-alpha shader (FRAG)\n");
 160         printf("    --saturate-s MASK - bitmask of samplers to saturate S coord\n");
 161         printf("    --saturate-t MASK - bitmask of samplers to saturate T coord\n");
 162         printf("    --saturate-r MASK - bitmask of samplers to saturate R coord\n");
 163         printf("    --nocp            - disable copy propagation\n");
 164         printf("    --help            - show this message\n");
 165 }
 166
 167 int main(int argc, char **argv)
 168 {
 169         int ret = 0, n = 1;
 170         const char *filename;
 171         struct tgsi_token toks[65536];
 172         struct tgsi_parse_context parse;
 173         struct ir3_shader_variant v;
 174         struct ir3_shader_key key = {};
 175         const char *info;
 176         void *ptr;
 177         size_t size;
 178
 179         fd_mesa_debug |= FD_DBG_DISASM;
 180
 181         /* cmdline args which impact shader variant get spit out in a
 182          * comment on the first line..  a quick/dirty way to preserve
 183          * that info so when ir3test recompiles the shader with a new
 184          * compiler version, we use the same shader-key settings:
 185          */
 186         debug_printf("; options:");
 187
 188         while (n < argc) {
 189                 if (!strcmp(argv[n], "--verbose")) {
 190                         fd_mesa_debug |=  FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
 191                         n++;
 192                         continue;
 193                 }
 194
 195                 if (!strcmp(argv[n], "--binning-pass")) {
 196                         debug_printf(" %s", argv[n]);
 197                         key.binning_pass = true;
 198                         n++;
 199                         continue;
 200                 }
 201
 202                 if (!strcmp(argv[n], "--color-two-side")) {
 203                         debug_printf(" %s", argv[n]);
 204                         key.color_two_side = true;
 205                         n++;
 206                         continue;
 207                 }
 208
 209                 if (!strcmp(argv[n], "--half-precision")) {
 210                         debug_printf(" %s", argv[n]);
 211                         key.half_precision = true;
 212                         n++;
 213                         continue;
 214                 }
 215
 216                 if (!strcmp(argv[n], "--alpha")) {
 217                         debug_printf(" %s", argv[n]);
 218                         key.alpha = true;
 219                         n++;
 220                         continue;
 221                 }
 222
 223                 if (!strcmp(argv[n], "--saturate-s")) {
 224                         debug_printf(" %s %s", argv[n], argv[n+1]);
 225                         key.vsaturate_s = key.fsaturate_s = strtol(argv[n+1], NULL, 0);
 226                         n += 2;
 227                         continue;
 228                 }
 229
 230                 if (!strcmp(argv[n], "--saturate-t")) {
 231                         debug_printf(" %s %s", argv[n], argv[n+1]);
 232                         key.vsaturate_t = key.fsaturate_t = strtol(argv[n+1], NULL, 0);
 233                         n += 2;
 234                         continue;
 235                 }
 236
 237                 if (!strcmp(argv[n], "--saturate-r")) {
 238                         debug_printf(" %s %s", argv[n], argv[n+1]);
 239                         key.vsaturate_r = key.fsaturate_r = strtol(argv[n+1], NULL, 0);
 240                         n += 2;
 241                         continue;
 242                 }
 243
 244                 if (!strcmp(argv[n], "--nocp")) {
 245                         fd_mesa_debug |= FD_DBG_NOCP;
 246                         n++;
 247                         continue;
 248                 }
 249
 250                 if (!strcmp(argv[n], "--help")) {
 251                         print_usage();
 252                         return 0;
 253                 }
 254
 255                 break;
 256         }
 257         debug_printf("\n");
 258
 259         filename = argv[n];
 260
 261         memset(&v, 0, sizeof(v));
 262         v.key = key;
 263
 264         ret = read_file(filename, &ptr, &size);
 265         if (ret) {
 266                 print_usage();
 267                 return ret;
 268         }
 269
 270         if (!tgsi_text_translate(ptr, toks, Elements(toks)))
 271                 errx(1, "could not parse `%s'", filename);
 272
 273         tgsi_parse_init(&parse, toks);
 274         switch (parse.FullHeader.Processor.Processor) {
 275         case TGSI_PROCESSOR_FRAGMENT:
 276                 v.type = SHADER_FRAGMENT;
 277                 break;
 278         case TGSI_PROCESSOR_VERTEX:
 279                 v.type = SHADER_VERTEX;
 280                 break;
 281         case TGSI_PROCESSOR_COMPUTE:
 282                 v.type = SHADER_COMPUTE;
 283                 break;
 284         }
 285
 286         if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
 287                 /* with new compiler: */
 288                 info = "new compiler";
 289                 ret = ir3_compile_shader(&v, toks, key, true);
 290
 291                 if (ret) {
 292                         reset_variant(&v, "new compiler failed, trying without copy propagation!");
 293                         info = "new compiler (no copy propagation)";
 294                         ret = ir3_compile_shader(&v, toks, key, false);
 295                         if (ret)
 296                                 reset_variant(&v, "new compiler failed, trying fallback!\n");
 297                 }
 298         }
 299
 300         if (ret) {
 301                 info = "old compiler";
 302                 ret = ir3_compile_shader_old(&v, toks, key);
 303         }
 304
 305         if (ret) {
 306                 fprintf(stderr, "old compiler failed!\n");
 307                 return ret;
 308         }
 309         dump_info(&v, info);
 310 }