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 <err.h>
28 #include <fcntl.h>
29 #include <getopt.h>
30 #include <stdint.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <sys/mman.h>
34 #include <sys/stat.h>
35 #include <sys/types.h>
36
37 #include "nir/tgsi_to_nir.h"
38 #include "tgsi/tgsi_dump.h"
39 #include "tgsi/tgsi_parse.h"
40 #include "tgsi/tgsi_text.h"
41
42 #include "ir3/instr-a3xx.h"
43 #include "ir3/ir3.h"
44 #include "ir3/ir3_compiler.h"
45 #include "ir3/ir3_gallium.h"
46 #include "ir3/ir3_nir.h"
47
48 #include "main/mtypes.h"
49
50 #include "compiler/glsl/gl_nir.h"
51 #include "compiler/glsl/glsl_to_nir.h"
52 #include "compiler/glsl/standalone.h"
53 #include "compiler/nir_types.h"
54 #include "compiler/spirv/nir_spirv.h"
55
56 #include "pipe/p_context.h"
57
58 static void
dump_info(struct ir3_shader_variant * so,const char * str)59 dump_info(struct ir3_shader_variant *so, const char *str)
60 {
61 uint32_t *bin;
62 const char *type = ir3_shader_stage(so);
63 bin = ir3_shader_assemble(so);
64 printf("; %s: %s\n", type, str);
65 ir3_shader_disasm(so, bin, stdout);
66 }
67
68 static void
insert_sorted(struct exec_list * var_list,nir_variable * new_var)69 insert_sorted(struct exec_list *var_list, nir_variable *new_var)
70 {
71 nir_foreach_variable_in_list (var, var_list) {
72 if (var->data.location > new_var->data.location) {
73 exec_node_insert_node_before(&var->node, &new_var->node);
74 return;
75 }
76 }
77 exec_list_push_tail(var_list, &new_var->node);
78 }
79
80 static void
sort_varyings(nir_shader * nir,nir_variable_mode mode)81 sort_varyings(nir_shader *nir, nir_variable_mode mode)
82 {
83 struct exec_list new_list;
84 exec_list_make_empty(&new_list);
85 nir_foreach_variable_with_modes_safe (var, nir, mode) {
86 exec_node_remove(&var->node);
87 insert_sorted(&new_list, var);
88 }
89 exec_list_append(&nir->variables, &new_list);
90 }
91
92 static void
fixup_varying_slots(nir_shader * nir,nir_variable_mode mode)93 fixup_varying_slots(nir_shader *nir, nir_variable_mode mode)
94 {
95 nir_foreach_variable_with_modes (var, nir, mode) {
96 if (var->data.location >= VARYING_SLOT_VAR0) {
97 var->data.location += 9;
98 } else if ((var->data.location >= VARYING_SLOT_TEX0) &&
99 (var->data.location <= VARYING_SLOT_TEX7)) {
100 var->data.location += VARYING_SLOT_VAR0 - VARYING_SLOT_TEX0;
101 }
102 }
103 }
104
105 static struct ir3_compiler *compiler;
106
107 static nir_shader *
load_glsl(unsigned num_files,char * const * files,gl_shader_stage stage)108 load_glsl(unsigned num_files, char *const *files, gl_shader_stage stage)
109 {
110 static const struct standalone_options options = {
111 .glsl_version = 310,
112 .do_link = true,
113 .lower_precision = true,
114 };
115 struct gl_shader_program *prog;
116 const nir_shader_compiler_options *nir_options =
117 ir3_get_compiler_options(compiler);
118 static struct gl_context local_ctx;
119
120 prog = standalone_compile_shader(&options, num_files, files, &local_ctx);
121 if (!prog)
122 errx(1, "couldn't parse `%s'", files[0]);
123
124 nir_shader *nir = glsl_to_nir(&local_ctx, prog, stage, nir_options);
125
126 /* required NIR passes: */
127 if (nir_options->lower_all_io_to_temps ||
128 nir->info.stage == MESA_SHADER_VERTEX ||
129 nir->info.stage == MESA_SHADER_GEOMETRY) {
130 NIR_PASS_V(nir, nir_lower_io_to_temporaries,
131 nir_shader_get_entrypoint(nir), true, true);
132 } else if (nir->info.stage == MESA_SHADER_FRAGMENT) {
133 NIR_PASS_V(nir, nir_lower_io_to_temporaries,
134 nir_shader_get_entrypoint(nir), true, false);
135 }
136
137 NIR_PASS_V(nir, nir_lower_global_vars_to_local);
138 NIR_PASS_V(nir, nir_split_var_copies);
139 NIR_PASS_V(nir, nir_lower_var_copies);
140
141 NIR_PASS_V(nir, nir_split_var_copies);
142 NIR_PASS_V(nir, nir_lower_var_copies);
143 nir_print_shader(nir, stdout);
144 NIR_PASS_V(nir, gl_nir_lower_atomics, prog, true);
145 NIR_PASS_V(nir, gl_nir_lower_buffers, prog);
146 NIR_PASS_V(nir, nir_lower_atomics_to_ssbo);
147 nir_print_shader(nir, stdout);
148
149 switch (stage) {
150 case MESA_SHADER_VERTEX:
151 nir_assign_var_locations(nir, nir_var_shader_in, &nir->num_inputs,
152 ir3_glsl_type_size);
153
154 /* Re-lower global vars, to deal with any dead VS inputs. */
155 NIR_PASS_V(nir, nir_lower_global_vars_to_local);
156
157 sort_varyings(nir, nir_var_shader_out);
158 nir_assign_var_locations(nir, nir_var_shader_out, &nir->num_outputs,
159 ir3_glsl_type_size);
160 fixup_varying_slots(nir, nir_var_shader_out);
161 break;
162 case MESA_SHADER_FRAGMENT:
163 sort_varyings(nir, nir_var_shader_in);
164 nir_assign_var_locations(nir, nir_var_shader_in, &nir->num_inputs,
165 ir3_glsl_type_size);
166 fixup_varying_slots(nir, nir_var_shader_in);
167 nir_assign_var_locations(nir, nir_var_shader_out, &nir->num_outputs,
168 ir3_glsl_type_size);
169 break;
170 case MESA_SHADER_COMPUTE:
171 case MESA_SHADER_KERNEL:
172 break;
173 default:
174 errx(1, "unhandled shader stage: %d", stage);
175 }
176
177 nir_assign_var_locations(nir, nir_var_uniform, &nir->num_uniforms,
178 ir3_glsl_type_size);
179
180 NIR_PASS_V(nir, nir_lower_system_values);
181 NIR_PASS_V(nir, nir_lower_compute_system_values, NULL);
182
183 NIR_PASS_V(nir, nir_lower_frexp);
184 NIR_PASS_V(nir, nir_lower_io,
185 nir_var_shader_in | nir_var_shader_out | nir_var_uniform,
186 ir3_glsl_type_size, (nir_lower_io_options)0);
187 NIR_PASS_V(nir, gl_nir_lower_samplers, prog);
188
189 return nir;
190 }
191
192 static int
read_file(const char * filename,void ** ptr,size_t * size)193 read_file(const char *filename, void **ptr, size_t *size)
194 {
195 int fd, ret;
196 struct stat st;
197
198 *ptr = MAP_FAILED;
199
200 fd = open(filename, O_RDONLY);
201 if (fd == -1) {
202 warnx("couldn't open `%s'", filename);
203 return 1;
204 }
205
206 ret = fstat(fd, &st);
207 if (ret)
208 errx(1, "couldn't stat `%s'", filename);
209
210 *size = st.st_size;
211 *ptr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, fd, 0);
212 if (*ptr == MAP_FAILED)
213 errx(1, "couldn't map `%s'", filename);
214
215 close(fd);
216
217 return 0;
218 }
219
220 static void
debug_func(void * priv,enum nir_spirv_debug_level level,size_t spirv_offset,const char * message)221 debug_func(void *priv, enum nir_spirv_debug_level level, size_t spirv_offset,
222 const char *message)
223 {
224 // printf("%s\n", message);
225 }
226
227 static nir_shader *
load_spirv(const char * filename,const char * entry,gl_shader_stage stage)228 load_spirv(const char *filename, const char *entry, gl_shader_stage stage)
229 {
230 const struct spirv_to_nir_options spirv_options = {
231 /* these caps are just make-believe */
232 .caps = {
233 .draw_parameters = true,
234 .float64 = true,
235 .image_read_without_format = true,
236 .image_write_without_format = true,
237 .int64 = true,
238 .variable_pointers = true,
239 },
240 .debug = {
241 .func = debug_func,
242 }
243 };
244 nir_shader *nir;
245 void *buf;
246 size_t size;
247
248 read_file(filename, &buf, &size);
249
250 nir = spirv_to_nir(buf, size / 4, NULL, 0, /* spec_entries */
251 stage, entry, &spirv_options,
252 ir3_get_compiler_options(compiler));
253
254 const struct nir_lower_sysvals_to_varyings_options sysvals_to_varyings = {
255 .frag_coord = true,
256 .point_coord = true,
257 };
258 NIR_PASS_V(nir, nir_lower_sysvals_to_varyings, &sysvals_to_varyings);
259
260 nir_print_shader(nir, stdout);
261
262 return nir;
263 }
264
265 static const char *shortopts = "g:hv";
266
267 static const struct option longopts[] = {
268 {"gpu", required_argument, 0, 'g'},
269 {"help", no_argument, 0, 'h'},
270 {"verbose", no_argument, 0, 'v'},
271 };
272
273 static void
print_usage(void)274 print_usage(void)
275 {
276 printf("Usage: ir3_compiler [OPTIONS]... <file.tgsi | file.spv entry_point "
277 "| (file.vert | file.frag)*>\n");
278 printf(" -g, --gpu GPU_ID - specify gpu-id (default 320)\n");
279 printf(" -h, --help - show this message\n");
280 printf(" -v, --verbose - verbose compiler/debug messages\n");
281 }
282
283 int
main(int argc,char ** argv)284 main(int argc, char **argv)
285 {
286 int ret = 0, opt;
287 char *filenames[2];
288 int num_files = 0;
289 unsigned stage = 0;
290 struct ir3_shader_key key = {};
291 unsigned gpu_id = 320;
292 const char *info;
293 const char *spirv_entry = NULL;
294 void *ptr;
295 bool from_tgsi = false;
296 size_t size;
297
298 while ((opt = getopt_long_only(argc, argv, shortopts, longopts, NULL)) !=
299 -1) {
300 switch (opt) {
301 case 'g':
302 gpu_id = strtol(optarg, NULL, 0);
303 break;
304 case 'v':
305 ir3_shader_debug |= IR3_DBG_OPTMSGS | IR3_DBG_DISASM;
306 break;
307 default:
308 printf("unrecognized arg: %c\n", opt);
309 FALLTHROUGH;
310 case 'h':
311 print_usage();
312 return 0;
313 }
314 }
315
316 if (optind >= argc) {
317 fprintf(stderr, "no file specified!\n");
318 print_usage();
319 return 0;
320 }
321
322 unsigned n = optind;
323 while (n < argc) {
324 char *filename = argv[n];
325 char *ext = strrchr(filename, '.');
326
327 if (strcmp(ext, ".tgsi") == 0) {
328 if (num_files != 0)
329 errx(1, "in TGSI mode, only a single file may be specified");
330 from_tgsi = true;
331 } else if (strcmp(ext, ".spv") == 0) {
332 if (num_files != 0)
333 errx(1, "in SPIR-V mode, only a single file may be specified");
334 stage = MESA_SHADER_COMPUTE;
335 filenames[num_files++] = filename;
336 n++;
337 if (n == argc)
338 errx(1, "in SPIR-V mode, an entry point must be specified");
339 spirv_entry = argv[n];
340 n++;
341 } else if (strcmp(ext, ".comp") == 0) {
342 if (from_tgsi || spirv_entry)
343 errx(1, "cannot mix GLSL/TGSI/SPIRV");
344 if (num_files >= ARRAY_SIZE(filenames))
345 errx(1, "too many GLSL files");
346 stage = MESA_SHADER_COMPUTE;
347 } else if (strcmp(ext, ".frag") == 0) {
348 if (from_tgsi || spirv_entry)
349 errx(1, "cannot mix GLSL/TGSI/SPIRV");
350 if (num_files >= ARRAY_SIZE(filenames))
351 errx(1, "too many GLSL files");
352 stage = MESA_SHADER_FRAGMENT;
353 } else if (strcmp(ext, ".vert") == 0) {
354 if (from_tgsi)
355 errx(1, "cannot mix GLSL and TGSI");
356 if (num_files >= ARRAY_SIZE(filenames))
357 errx(1, "too many GLSL files");
358 stage = MESA_SHADER_VERTEX;
359 } else {
360 print_usage();
361 return -1;
362 }
363
364 filenames[num_files++] = filename;
365
366 n++;
367 }
368
369 nir_shader *nir;
370
371 struct fd_dev_id dev_id = {
372 .gpu_id = gpu_id,
373 };
374 compiler = ir3_compiler_create(NULL, &dev_id, false);
375
376 if (from_tgsi) {
377 struct tgsi_token toks[65536];
378 const nir_shader_compiler_options *nir_options =
379 ir3_get_compiler_options(compiler);
380
381 ret = read_file(filenames[0], &ptr, &size);
382 if (ret) {
383 print_usage();
384 return ret;
385 }
386
387 if (ir3_shader_debug & IR3_DBG_OPTMSGS)
388 printf("%s\n", (char *)ptr);
389
390 if (!tgsi_text_translate(ptr, toks, ARRAY_SIZE(toks)))
391 errx(1, "could not parse `%s'", filenames[0]);
392
393 if (ir3_shader_debug & IR3_DBG_OPTMSGS)
394 tgsi_dump(toks, 0);
395
396 nir = tgsi_to_nir_noscreen(toks, nir_options);
397 NIR_PASS_V(nir, nir_lower_global_vars_to_local);
398 } else if (spirv_entry) {
399 nir = load_spirv(filenames[0], spirv_entry, stage);
400
401 NIR_PASS_V(nir, nir_lower_io, nir_var_shader_in | nir_var_shader_out,
402 ir3_glsl_type_size, (nir_lower_io_options)0);
403
404 /* TODO do this somewhere else */
405 nir_lower_int64(nir);
406 nir_lower_system_values(nir);
407 nir_lower_compute_system_values(nir, NULL);
408 } else if (num_files > 0) {
409 nir = load_glsl(num_files, filenames, stage);
410 } else {
411 print_usage();
412 return -1;
413 }
414
415 ir3_nir_lower_io_to_temporaries(nir);
416 ir3_finalize_nir(compiler, nir);
417 ir3_nir_post_finalize(compiler, nir);
418
419 struct ir3_shader *shader = rzalloc_size(NULL, sizeof(*shader));
420 shader->compiler = compiler;
421 shader->type = stage;
422 shader->nir = nir;
423
424 struct ir3_shader_variant *v = rzalloc_size(shader, sizeof(*v));
425 v->type = shader->type;
426 v->shader = shader;
427 v->key = key;
428 v->const_state = rzalloc_size(v, sizeof(*v->const_state));
429
430 shader->variants = v;
431 shader->variant_count = 1;
432
433 ir3_nir_lower_variant(v, nir);
434
435 info = "NIR compiler";
436 ret = ir3_compile_shader_nir(compiler, v);
437 if (ret) {
438 fprintf(stderr, "compiler failed!\n");
439 return ret;
440 }
441 dump_info(v, info);
442
443 return 0;
444 }
445