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)
  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                 unsigned i;
  55
  56                 debug_printf("%s: disasm:\n", type);
  57                 disasm_a3xx(bin, info.sizedwords, 0, so->type);
  58
  59                 debug_printf("%s: outputs:", type);
  60                 for (i = 0; i < so->outputs_count; i++) {
  61                         uint8_t regid = so->outputs[i].regid;
  62                         ir3_semantic sem = so->outputs[i].semantic;
  63                         debug_printf(" r%d.%c (%u:%u)",
  64                                         (regid >> 2), "xyzw"[regid & 0x3],
  65                                         sem2name(sem), sem2idx(sem));
  66                 }
  67                 debug_printf("\n");
  68                 debug_printf("%s: inputs:", type);
  69                 for (i = 0; i < so->inputs_count; i++) {
  70                         uint8_t regid = so->inputs[i].regid;
  71                         ir3_semantic sem = so->inputs[i].semantic;
  72                         debug_printf(" r%d.%c (%u:%u,cm=%x,il=%u,b=%u)",
  73                                         (regid >> 2), "xyzw"[regid & 0x3],
  74                                         sem2name(sem), sem2idx(sem),
  75                                         so->inputs[i].compmask,
  76                                         so->inputs[i].inloc,
  77                                         so->inputs[i].bary);
  78                 }
  79                 debug_printf("\n");
  80         }
  81         debug_printf("%s: %u instructions, %d half, %d full\n\n",
  82                         type, info.instrs_count, info.max_half_reg + 1, info.max_reg + 1);
  83         free(bin);
  84 }
  85
  86
  87 static int
  88 read_file(const char *filename, void **ptr, size_t *size)
  89 {
  90         int fd, ret;
  91         struct stat st;
  92
  93         *ptr = MAP_FAILED;
  94
  95         fd = open(filename, O_RDONLY);
  96         if (fd == -1) {
  97                 warnx("couldn't open `%s'", filename);
  98                 return 1;
  99         }
 100
 101         ret = fstat(fd, &st);
 102         if (ret)
 103                 errx(1, "couldn't stat `%s'", filename);
 104
 105         *size = st.st_size;
 106         *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
 107         if (*ptr == MAP_FAILED)
 108                 errx(1, "couldn't map `%s'", filename);
 109
 110         close(fd);
 111
 112         return 0;
 113 }
 114
 115 static void reset_variant(struct ir3_shader_variant *v, const char *msg)
 116 {
 117         debug_error(msg);
 118         v->inputs_count = 0;
 119         v->outputs_count = 0;
 120         v->total_in = 0;
 121         v->has_samp = false;
 122         v->immediates_count = 0;
 123 }
 124
 125 static void print_usage(void)
 126 {
 127         printf("Usage: ir3_compiler [OPTIONS]... FILE\n");
 128         printf("    --verbose         - verbose compiler/debug messages\n");
 129         printf("    --binning-pass    - generate binning pass shader (VERT)\n");
 130         printf("    --color-two-side  - emulate two-sided color (FRAG)\n");
 131         printf("    --half-precision  - use half-precision\n");
 132         printf("    --alpha           - generate render-to-alpha shader (FRAG)\n");
 133         printf("    --saturate-s MASK - bitmask of samplers to saturate S coord\n");
 134         printf("    --saturate-t MASK - bitmask of samplers to saturate T coord\n");
 135         printf("    --saturate-r MASK - bitmask of samplers to saturate R coord\n");
 136         printf("    --nocp            - disable copy propagation\n");
 137         printf("    --help            - show this message\n");
 138 }
 139
 140 int main(int argc, char **argv)
 141 {
 142         int ret = 0, n = 1;
 143         const char *filename;
 144         struct tgsi_token toks[65536];
 145         struct tgsi_parse_context parse;
 146         struct ir3_shader_variant v;
 147         struct ir3_shader_key key = {
 148         };
 149         void *ptr;
 150         size_t size;
 151
 152         fd_mesa_debug |= FD_DBG_DISASM;
 153
 154         while (n < argc) {
 155                 if (!strcmp(argv[n], "--verbose")) {
 156                         fd_mesa_debug |=  FD_DBG_OPTDUMP | FD_DBG_MSGS | FD_DBG_OPTMSGS;
 157                         n++;
 158                         continue;
 159                 }
 160
 161                 if (!strcmp(argv[n], "--binning-pass")) {
 162                         key.binning_pass = true;
 163                         n++;
 164                         continue;
 165                 }
 166
 167                 if (!strcmp(argv[n], "--color-two-side")) {
 168                         key.color_two_side = true;
 169                         n++;
 170                         continue;
 171                 }
 172
 173                 if (!strcmp(argv[n], "--half-precision")) {
 174                         key.half_precision = true;
 175                         n++;
 176                         continue;
 177                 }
 178
 179                 if (!strcmp(argv[n], "--alpha")) {
 180                         key.alpha = true;
 181                         n++;
 182                         continue;
 183                 }
 184
 185                 if (!strcmp(argv[n], "--saturate-s")) {
 186                         key.vsaturate_s = key.fsaturate_s = strtol(argv[n+1], NULL, 0);
 187                         n += 2;
 188                         continue;
 189                 }
 190
 191                 if (!strcmp(argv[n], "--saturate-t")) {
 192                         key.vsaturate_t = key.fsaturate_t = strtol(argv[n+1], NULL, 0);
 193                         n += 2;
 194                         continue;
 195                 }
 196
 197                 if (!strcmp(argv[n], "--saturate-r")) {
 198                         key.vsaturate_r = key.fsaturate_r = strtol(argv[n+1], NULL, 0);
 199                         n += 2;
 200                         continue;
 201                 }
 202
 203                 if (!strcmp(argv[n], "--nocp")) {
 204                         fd_mesa_debug |= FD_DBG_NOCP;
 205                         n++;
 206                         continue;
 207                 }
 208
 209                 if (!strcmp(argv[n], "--help")) {
 210                         print_usage();
 211                         return 0;
 212                 }
 213
 214                 break;
 215         }
 216
 217         filename = argv[n];
 218
 219         memset(&v, 0, sizeof(v));
 220         v.key = key;
 221
 222         ret = read_file(filename, &ptr, &size);
 223         if (ret) {
 224                 print_usage();
 225                 return ret;
 226         }
 227
 228         if (!tgsi_text_translate(ptr, toks, Elements(toks)))
 229                 errx(1, "could not parse `%s'", filename);
 230
 231         tgsi_parse_init(&parse, toks);
 232         switch (parse.FullHeader.Processor.Processor) {
 233         case TGSI_PROCESSOR_FRAGMENT:
 234                 v.type = SHADER_FRAGMENT;
 235                 break;
 236         case TGSI_PROCESSOR_VERTEX:
 237                 v.type = SHADER_VERTEX;
 238                 break;
 239         case TGSI_PROCESSOR_COMPUTE:
 240                 v.type = SHADER_COMPUTE;
 241                 break;
 242         }
 243
 244         if (!(fd_mesa_debug & FD_DBG_NOOPT)) {
 245                 /* with new compiler: */
 246                 ret = ir3_compile_shader(&v, toks, key, true);
 247
 248                 if (ret) {
 249                         reset_variant(&v, "new compiler failed, trying without copy propagation!");
 250                         ret = ir3_compile_shader(&v, toks, key, false);
 251                         if (ret)
 252                                 reset_variant(&v, "new compiler failed, trying fallback!\n");
 253                 }
 254         }
 255
 256         if (ret)
 257                 ret = ir3_compile_shader_old(&v, toks, key);
 258
 259         if (ret) {
 260                 fprintf(stderr, "old compiler failed!\n");
 261                 return ret;
 262         }
 263         dump_info(&v);
 264 }