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radeonsi: don't update dependent states if it has no effect (v2)
[mesa.git] / src / gallium / drivers / radeonsi / si_state_shaders.c
1 /*
2 * Copyright 2012 Advanced Micro Devices, Inc.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Christian König <christian.koenig@amd.com>
25 * Marek Olšák <maraeo@gmail.com>
26 */
27
28 #include "si_pipe.h"
29 #include "sid.h"
30 #include "gfx9d.h"
31 #include "radeon/r600_cs.h"
32
33 #include "tgsi/tgsi_parse.h"
34 #include "tgsi/tgsi_ureg.h"
35 #include "util/hash_table.h"
36 #include "util/crc32.h"
37 #include "util/u_memory.h"
38 #include "util/u_prim.h"
39
40 #include "util/disk_cache.h"
41 #include "util/mesa-sha1.h"
42 #include "ac_exp_param.h"
43
44 /* SHADER_CACHE */
45
46 /**
47 * Return the TGSI binary in a buffer. The first 4 bytes contain its size as
48 * integer.
49 */
50 static void *si_get_tgsi_binary(struct si_shader_selector *sel)
51 {
52 unsigned tgsi_size = tgsi_num_tokens(sel->tokens) *
53 sizeof(struct tgsi_token);
54 unsigned size = 4 + tgsi_size + sizeof(sel->so);
55 char *result = (char*)MALLOC(size);
56
57 if (!result)
58 return NULL;
59
60 *((uint32_t*)result) = size;
61 memcpy(result + 4, sel->tokens, tgsi_size);
62 memcpy(result + 4 + tgsi_size, &sel->so, sizeof(sel->so));
63 return result;
64 }
65
66 /** Copy "data" to "ptr" and return the next dword following copied data. */
67 static uint32_t *write_data(uint32_t *ptr, const void *data, unsigned size)
68 {
69 /* data may be NULL if size == 0 */
70 if (size)
71 memcpy(ptr, data, size);
72 ptr += DIV_ROUND_UP(size, 4);
73 return ptr;
74 }
75
76 /** Read data from "ptr". Return the next dword following the data. */
77 static uint32_t *read_data(uint32_t *ptr, void *data, unsigned size)
78 {
79 memcpy(data, ptr, size);
80 ptr += DIV_ROUND_UP(size, 4);
81 return ptr;
82 }
83
84 /**
85 * Write the size as uint followed by the data. Return the next dword
86 * following the copied data.
87 */
88 static uint32_t *write_chunk(uint32_t *ptr, const void *data, unsigned size)
89 {
90 *ptr++ = size;
91 return write_data(ptr, data, size);
92 }
93
94 /**
95 * Read the size as uint followed by the data. Return both via parameters.
96 * Return the next dword following the data.
97 */
98 static uint32_t *read_chunk(uint32_t *ptr, void **data, unsigned *size)
99 {
100 *size = *ptr++;
101 assert(*data == NULL);
102 if (!*size)
103 return ptr;
104 *data = malloc(*size);
105 return read_data(ptr, *data, *size);
106 }
107
108 /**
109 * Return the shader binary in a buffer. The first 4 bytes contain its size
110 * as integer.
111 */
112 static void *si_get_shader_binary(struct si_shader *shader)
113 {
114 /* There is always a size of data followed by the data itself. */
115 unsigned relocs_size = shader->binary.reloc_count *
116 sizeof(shader->binary.relocs[0]);
117 unsigned disasm_size = shader->binary.disasm_string ?
118 strlen(shader->binary.disasm_string) + 1 : 0;
119 unsigned llvm_ir_size = shader->binary.llvm_ir_string ?
120 strlen(shader->binary.llvm_ir_string) + 1 : 0;
121 unsigned size =
122 4 + /* total size */
123 4 + /* CRC32 of the data below */
124 align(sizeof(shader->config), 4) +
125 align(sizeof(shader->info), 4) +
126 4 + align(shader->binary.code_size, 4) +
127 4 + align(shader->binary.rodata_size, 4) +
128 4 + align(relocs_size, 4) +
129 4 + align(disasm_size, 4) +
130 4 + align(llvm_ir_size, 4);
131 void *buffer = CALLOC(1, size);
132 uint32_t *ptr = (uint32_t*)buffer;
133
134 if (!buffer)
135 return NULL;
136
137 *ptr++ = size;
138 ptr++; /* CRC32 is calculated at the end. */
139
140 ptr = write_data(ptr, &shader->config, sizeof(shader->config));
141 ptr = write_data(ptr, &shader->info, sizeof(shader->info));
142 ptr = write_chunk(ptr, shader->binary.code, shader->binary.code_size);
143 ptr = write_chunk(ptr, shader->binary.rodata, shader->binary.rodata_size);
144 ptr = write_chunk(ptr, shader->binary.relocs, relocs_size);
145 ptr = write_chunk(ptr, shader->binary.disasm_string, disasm_size);
146 ptr = write_chunk(ptr, shader->binary.llvm_ir_string, llvm_ir_size);
147 assert((char *)ptr - (char *)buffer == size);
148
149 /* Compute CRC32. */
150 ptr = (uint32_t*)buffer;
151 ptr++;
152 *ptr = util_hash_crc32(ptr + 1, size - 8);
153
154 return buffer;
155 }
156
157 static bool si_load_shader_binary(struct si_shader *shader, void *binary)
158 {
159 uint32_t *ptr = (uint32_t*)binary;
160 uint32_t size = *ptr++;
161 uint32_t crc32 = *ptr++;
162 unsigned chunk_size;
163
164 if (util_hash_crc32(ptr, size - 8) != crc32) {
165 fprintf(stderr, "radeonsi: binary shader has invalid CRC32\n");
166 return false;
167 }
168
169 ptr = read_data(ptr, &shader->config, sizeof(shader->config));
170 ptr = read_data(ptr, &shader->info, sizeof(shader->info));
171 ptr = read_chunk(ptr, (void**)&shader->binary.code,
172 &shader->binary.code_size);
173 ptr = read_chunk(ptr, (void**)&shader->binary.rodata,
174 &shader->binary.rodata_size);
175 ptr = read_chunk(ptr, (void**)&shader->binary.relocs, &chunk_size);
176 shader->binary.reloc_count = chunk_size / sizeof(shader->binary.relocs[0]);
177 ptr = read_chunk(ptr, (void**)&shader->binary.disasm_string, &chunk_size);
178 ptr = read_chunk(ptr, (void**)&shader->binary.llvm_ir_string, &chunk_size);
179
180 return true;
181 }
182
183 /**
184 * Insert a shader into the cache. It's assumed the shader is not in the cache.
185 * Use si_shader_cache_load_shader before calling this.
186 *
187 * Returns false on failure, in which case the tgsi_binary should be freed.
188 */
189 static bool si_shader_cache_insert_shader(struct si_screen *sscreen,
190 void *tgsi_binary,
191 struct si_shader *shader,
192 bool insert_into_disk_cache)
193 {
194 void *hw_binary;
195 struct hash_entry *entry;
196 uint8_t key[CACHE_KEY_SIZE];
197
198 entry = _mesa_hash_table_search(sscreen->shader_cache, tgsi_binary);
199 if (entry)
200 return false; /* already added */
201
202 hw_binary = si_get_shader_binary(shader);
203 if (!hw_binary)
204 return false;
205
206 if (_mesa_hash_table_insert(sscreen->shader_cache, tgsi_binary,
207 hw_binary) == NULL) {
208 FREE(hw_binary);
209 return false;
210 }
211
212 if (sscreen->b.disk_shader_cache && insert_into_disk_cache) {
213 disk_cache_compute_key(sscreen->b.disk_shader_cache, tgsi_binary,
214 *((uint32_t *)tgsi_binary), key);
215 disk_cache_put(sscreen->b.disk_shader_cache, key, hw_binary,
216 *((uint32_t *) hw_binary));
217 }
218
219 return true;
220 }
221
222 static bool si_shader_cache_load_shader(struct si_screen *sscreen,
223 void *tgsi_binary,
224 struct si_shader *shader)
225 {
226 struct hash_entry *entry =
227 _mesa_hash_table_search(sscreen->shader_cache, tgsi_binary);
228 if (!entry) {
229 if (sscreen->b.disk_shader_cache) {
230 unsigned char sha1[CACHE_KEY_SIZE];
231 size_t tg_size = *((uint32_t *) tgsi_binary);
232
233 disk_cache_compute_key(sscreen->b.disk_shader_cache,
234 tgsi_binary, tg_size, sha1);
235
236 size_t binary_size;
237 uint8_t *buffer =
238 disk_cache_get(sscreen->b.disk_shader_cache,
239 sha1, &binary_size);
240 if (!buffer)
241 return false;
242
243 if (binary_size < sizeof(uint32_t) ||
244 *((uint32_t*)buffer) != binary_size) {
245 /* Something has gone wrong discard the item
246 * from the cache and rebuild/link from
247 * source.
248 */
249 assert(!"Invalid radeonsi shader disk cache "
250 "item!");
251
252 disk_cache_remove(sscreen->b.disk_shader_cache,
253 sha1);
254 free(buffer);
255
256 return false;
257 }
258
259 if (!si_load_shader_binary(shader, buffer)) {
260 free(buffer);
261 return false;
262 }
263 free(buffer);
264
265 if (!si_shader_cache_insert_shader(sscreen, tgsi_binary,
266 shader, false))
267 FREE(tgsi_binary);
268 } else {
269 return false;
270 }
271 } else {
272 if (si_load_shader_binary(shader, entry->data))
273 FREE(tgsi_binary);
274 else
275 return false;
276 }
277 p_atomic_inc(&sscreen->b.num_shader_cache_hits);
278 return true;
279 }
280
281 static uint32_t si_shader_cache_key_hash(const void *key)
282 {
283 /* The first dword is the key size. */
284 return util_hash_crc32(key, *(uint32_t*)key);
285 }
286
287 static bool si_shader_cache_key_equals(const void *a, const void *b)
288 {
289 uint32_t *keya = (uint32_t*)a;
290 uint32_t *keyb = (uint32_t*)b;
291
292 /* The first dword is the key size. */
293 if (*keya != *keyb)
294 return false;
295
296 return memcmp(keya, keyb, *keya) == 0;
297 }
298
299 static void si_destroy_shader_cache_entry(struct hash_entry *entry)
300 {
301 FREE((void*)entry->key);
302 FREE(entry->data);
303 }
304
305 bool si_init_shader_cache(struct si_screen *sscreen)
306 {
307 (void) mtx_init(&sscreen->shader_cache_mutex, mtx_plain);
308 sscreen->shader_cache =
309 _mesa_hash_table_create(NULL,
310 si_shader_cache_key_hash,
311 si_shader_cache_key_equals);
312
313 return sscreen->shader_cache != NULL;
314 }
315
316 void si_destroy_shader_cache(struct si_screen *sscreen)
317 {
318 if (sscreen->shader_cache)
319 _mesa_hash_table_destroy(sscreen->shader_cache,
320 si_destroy_shader_cache_entry);
321 mtx_destroy(&sscreen->shader_cache_mutex);
322 }
323
324 /* SHADER STATES */
325
326 static void si_set_tesseval_regs(struct si_screen *sscreen,
327 struct si_shader_selector *tes,
328 struct si_pm4_state *pm4)
329 {
330 struct tgsi_shader_info *info = &tes->info;
331 unsigned tes_prim_mode = info->properties[TGSI_PROPERTY_TES_PRIM_MODE];
332 unsigned tes_spacing = info->properties[TGSI_PROPERTY_TES_SPACING];
333 bool tes_vertex_order_cw = info->properties[TGSI_PROPERTY_TES_VERTEX_ORDER_CW];
334 bool tes_point_mode = info->properties[TGSI_PROPERTY_TES_POINT_MODE];
335 unsigned type, partitioning, topology, distribution_mode;
336
337 switch (tes_prim_mode) {
338 case PIPE_PRIM_LINES:
339 type = V_028B6C_TESS_ISOLINE;
340 break;
341 case PIPE_PRIM_TRIANGLES:
342 type = V_028B6C_TESS_TRIANGLE;
343 break;
344 case PIPE_PRIM_QUADS:
345 type = V_028B6C_TESS_QUAD;
346 break;
347 default:
348 assert(0);
349 return;
350 }
351
352 switch (tes_spacing) {
353 case PIPE_TESS_SPACING_FRACTIONAL_ODD:
354 partitioning = V_028B6C_PART_FRAC_ODD;
355 break;
356 case PIPE_TESS_SPACING_FRACTIONAL_EVEN:
357 partitioning = V_028B6C_PART_FRAC_EVEN;
358 break;
359 case PIPE_TESS_SPACING_EQUAL:
360 partitioning = V_028B6C_PART_INTEGER;
361 break;
362 default:
363 assert(0);
364 return;
365 }
366
367 if (tes_point_mode)
368 topology = V_028B6C_OUTPUT_POINT;
369 else if (tes_prim_mode == PIPE_PRIM_LINES)
370 topology = V_028B6C_OUTPUT_LINE;
371 else if (tes_vertex_order_cw)
372 /* for some reason, this must be the other way around */
373 topology = V_028B6C_OUTPUT_TRIANGLE_CCW;
374 else
375 topology = V_028B6C_OUTPUT_TRIANGLE_CW;
376
377 if (sscreen->has_distributed_tess) {
378 if (sscreen->b.family == CHIP_FIJI ||
379 sscreen->b.family >= CHIP_POLARIS10)
380 distribution_mode = V_028B6C_DISTRIBUTION_MODE_TRAPEZOIDS;
381 else
382 distribution_mode = V_028B6C_DISTRIBUTION_MODE_DONUTS;
383 } else
384 distribution_mode = V_028B6C_DISTRIBUTION_MODE_NO_DIST;
385
386 si_pm4_set_reg(pm4, R_028B6C_VGT_TF_PARAM,
387 S_028B6C_TYPE(type) |
388 S_028B6C_PARTITIONING(partitioning) |
389 S_028B6C_TOPOLOGY(topology) |
390 S_028B6C_DISTRIBUTION_MODE(distribution_mode));
391 }
392
393 /* Polaris needs different VTX_REUSE_DEPTH settings depending on
394 * whether the "fractional odd" tessellation spacing is used.
395 *
396 * Possible VGT configurations and which state should set the register:
397 *
398 * Reg set in | VGT shader configuration | Value
399 * ------------------------------------------------------
400 * VS as VS | VS | 30
401 * VS as ES | ES -> GS -> VS | 30
402 * TES as VS | LS -> HS -> VS | 14 or 30
403 * TES as ES | LS -> HS -> ES -> GS -> VS | 14 or 30
404 *
405 * If "shader" is NULL, it's assumed it's not LS or GS copy shader.
406 */
407 static void polaris_set_vgt_vertex_reuse(struct si_screen *sscreen,
408 struct si_shader_selector *sel,
409 struct si_shader *shader,
410 struct si_pm4_state *pm4)
411 {
412 unsigned type = sel->type;
413
414 if (sscreen->b.family < CHIP_POLARIS10)
415 return;
416
417 /* VS as VS, or VS as ES: */
418 if ((type == PIPE_SHADER_VERTEX &&
419 (!shader ||
420 (!shader->key.as_ls && !shader->is_gs_copy_shader))) ||
421 /* TES as VS, or TES as ES: */
422 type == PIPE_SHADER_TESS_EVAL) {
423 unsigned vtx_reuse_depth = 30;
424
425 if (type == PIPE_SHADER_TESS_EVAL &&
426 sel->info.properties[TGSI_PROPERTY_TES_SPACING] ==
427 PIPE_TESS_SPACING_FRACTIONAL_ODD)
428 vtx_reuse_depth = 14;
429
430 si_pm4_set_reg(pm4, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL,
431 vtx_reuse_depth);
432 }
433 }
434
435 static struct si_pm4_state *si_get_shader_pm4_state(struct si_shader *shader)
436 {
437 if (shader->pm4)
438 si_pm4_clear_state(shader->pm4);
439 else
440 shader->pm4 = CALLOC_STRUCT(si_pm4_state);
441
442 return shader->pm4;
443 }
444
445 static void si_shader_ls(struct si_screen *sscreen, struct si_shader *shader)
446 {
447 struct si_pm4_state *pm4;
448 unsigned vgpr_comp_cnt;
449 uint64_t va;
450
451 assert(sscreen->b.chip_class <= VI);
452
453 pm4 = si_get_shader_pm4_state(shader);
454 if (!pm4)
455 return;
456
457 va = shader->bo->gpu_address;
458 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
459
460 /* We need at least 2 components for LS.
461 * VGPR0-3: (VertexID, RelAutoindex, InstanceID / StepRate0, InstanceID).
462 * StepRate0 is set to 1. so that VGPR3 doesn't have to be loaded.
463 */
464 vgpr_comp_cnt = shader->info.uses_instanceid ? 2 : 1;
465
466 si_pm4_set_reg(pm4, R_00B520_SPI_SHADER_PGM_LO_LS, va >> 8);
467 si_pm4_set_reg(pm4, R_00B524_SPI_SHADER_PGM_HI_LS, va >> 40);
468
469 shader->config.rsrc1 = S_00B528_VGPRS((shader->config.num_vgprs - 1) / 4) |
470 S_00B528_SGPRS((shader->config.num_sgprs - 1) / 8) |
471 S_00B528_VGPR_COMP_CNT(vgpr_comp_cnt) |
472 S_00B528_DX10_CLAMP(1) |
473 S_00B528_FLOAT_MODE(shader->config.float_mode);
474 shader->config.rsrc2 = S_00B52C_USER_SGPR(SI_VS_NUM_USER_SGPR) |
475 S_00B52C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0);
476 }
477
478 static void si_shader_hs(struct si_screen *sscreen, struct si_shader *shader)
479 {
480 struct si_pm4_state *pm4;
481 uint64_t va;
482 unsigned ls_vgpr_comp_cnt = 0;
483
484 pm4 = si_get_shader_pm4_state(shader);
485 if (!pm4)
486 return;
487
488 va = shader->bo->gpu_address;
489 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
490
491 if (sscreen->b.chip_class >= GFX9) {
492 si_pm4_set_reg(pm4, R_00B410_SPI_SHADER_PGM_LO_LS, va >> 8);
493 si_pm4_set_reg(pm4, R_00B414_SPI_SHADER_PGM_HI_LS, va >> 40);
494
495 /* We need at least 2 components for LS.
496 * VGPR0-3: (VertexID, RelAutoindex, InstanceID / StepRate0, InstanceID).
497 * StepRate0 is set to 1. so that VGPR3 doesn't have to be loaded.
498 */
499 ls_vgpr_comp_cnt = shader->info.uses_instanceid ? 2 : 1;
500
501 shader->config.rsrc2 =
502 S_00B42C_USER_SGPR(GFX9_TCS_NUM_USER_SGPR) |
503 S_00B42C_USER_SGPR_MSB(GFX9_TCS_NUM_USER_SGPR >> 5) |
504 S_00B42C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0);
505 } else {
506 si_pm4_set_reg(pm4, R_00B420_SPI_SHADER_PGM_LO_HS, va >> 8);
507 si_pm4_set_reg(pm4, R_00B424_SPI_SHADER_PGM_HI_HS, va >> 40);
508
509 shader->config.rsrc2 =
510 S_00B42C_USER_SGPR(GFX6_TCS_NUM_USER_SGPR) |
511 S_00B42C_OC_LDS_EN(1) |
512 S_00B42C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0);
513 }
514
515 si_pm4_set_reg(pm4, R_00B428_SPI_SHADER_PGM_RSRC1_HS,
516 S_00B428_VGPRS((shader->config.num_vgprs - 1) / 4) |
517 S_00B428_SGPRS((shader->config.num_sgprs - 1) / 8) |
518 S_00B428_DX10_CLAMP(1) |
519 S_00B428_FLOAT_MODE(shader->config.float_mode) |
520 S_00B428_LS_VGPR_COMP_CNT(ls_vgpr_comp_cnt));
521
522 if (sscreen->b.chip_class <= VI) {
523 si_pm4_set_reg(pm4, R_00B42C_SPI_SHADER_PGM_RSRC2_HS,
524 shader->config.rsrc2);
525 }
526 }
527
528 static void si_shader_es(struct si_screen *sscreen, struct si_shader *shader)
529 {
530 struct si_pm4_state *pm4;
531 unsigned num_user_sgprs;
532 unsigned vgpr_comp_cnt;
533 uint64_t va;
534 unsigned oc_lds_en;
535
536 assert(sscreen->b.chip_class <= VI);
537
538 pm4 = si_get_shader_pm4_state(shader);
539 if (!pm4)
540 return;
541
542 va = shader->bo->gpu_address;
543 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
544
545 if (shader->selector->type == PIPE_SHADER_VERTEX) {
546 /* VGPR0-3: (VertexID, InstanceID / StepRate0, ...) */
547 vgpr_comp_cnt = shader->info.uses_instanceid ? 1 : 0;
548 num_user_sgprs = SI_VS_NUM_USER_SGPR;
549 } else if (shader->selector->type == PIPE_SHADER_TESS_EVAL) {
550 vgpr_comp_cnt = shader->selector->info.uses_primid ? 3 : 2;
551 num_user_sgprs = SI_TES_NUM_USER_SGPR;
552 } else
553 unreachable("invalid shader selector type");
554
555 oc_lds_en = shader->selector->type == PIPE_SHADER_TESS_EVAL ? 1 : 0;
556
557 si_pm4_set_reg(pm4, R_028AAC_VGT_ESGS_RING_ITEMSIZE,
558 shader->selector->esgs_itemsize / 4);
559 si_pm4_set_reg(pm4, R_00B320_SPI_SHADER_PGM_LO_ES, va >> 8);
560 si_pm4_set_reg(pm4, R_00B324_SPI_SHADER_PGM_HI_ES, va >> 40);
561 si_pm4_set_reg(pm4, R_00B328_SPI_SHADER_PGM_RSRC1_ES,
562 S_00B328_VGPRS((shader->config.num_vgprs - 1) / 4) |
563 S_00B328_SGPRS((shader->config.num_sgprs - 1) / 8) |
564 S_00B328_VGPR_COMP_CNT(vgpr_comp_cnt) |
565 S_00B328_DX10_CLAMP(1) |
566 S_00B328_FLOAT_MODE(shader->config.float_mode));
567 si_pm4_set_reg(pm4, R_00B32C_SPI_SHADER_PGM_RSRC2_ES,
568 S_00B32C_USER_SGPR(num_user_sgprs) |
569 S_00B32C_OC_LDS_EN(oc_lds_en) |
570 S_00B32C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
571
572 if (shader->selector->type == PIPE_SHADER_TESS_EVAL)
573 si_set_tesseval_regs(sscreen, shader->selector, pm4);
574
575 polaris_set_vgt_vertex_reuse(sscreen, shader->selector, shader, pm4);
576 }
577
578 /**
579 * Calculate the appropriate setting of VGT_GS_MODE when \p shader is a
580 * geometry shader.
581 */
582 static uint32_t si_vgt_gs_mode(struct si_shader_selector *sel)
583 {
584 enum chip_class chip_class = sel->screen->b.chip_class;
585 unsigned gs_max_vert_out = sel->gs_max_out_vertices;
586 unsigned cut_mode;
587
588 if (gs_max_vert_out <= 128) {
589 cut_mode = V_028A40_GS_CUT_128;
590 } else if (gs_max_vert_out <= 256) {
591 cut_mode = V_028A40_GS_CUT_256;
592 } else if (gs_max_vert_out <= 512) {
593 cut_mode = V_028A40_GS_CUT_512;
594 } else {
595 assert(gs_max_vert_out <= 1024);
596 cut_mode = V_028A40_GS_CUT_1024;
597 }
598
599 return S_028A40_MODE(V_028A40_GS_SCENARIO_G) |
600 S_028A40_CUT_MODE(cut_mode)|
601 S_028A40_ES_WRITE_OPTIMIZE(chip_class <= VI) |
602 S_028A40_GS_WRITE_OPTIMIZE(1) |
603 S_028A40_ONCHIP(chip_class >= GFX9 ? 1 : 0);
604 }
605
606 struct gfx9_gs_info {
607 unsigned es_verts_per_subgroup;
608 unsigned gs_prims_per_subgroup;
609 unsigned gs_inst_prims_in_subgroup;
610 unsigned max_prims_per_subgroup;
611 unsigned lds_size;
612 };
613
614 static void gfx9_get_gs_info(struct si_shader_selector *es,
615 struct si_shader_selector *gs,
616 struct gfx9_gs_info *out)
617 {
618 unsigned gs_num_invocations = MAX2(gs->gs_num_invocations, 1);
619 unsigned input_prim = gs->info.properties[TGSI_PROPERTY_GS_INPUT_PRIM];
620 bool uses_adjacency = input_prim >= PIPE_PRIM_LINES_ADJACENCY &&
621 input_prim <= PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY;
622
623 /* All these are in dwords: */
624 /* We can't allow using the whole LDS, because GS waves compete with
625 * other shader stages for LDS space. */
626 const unsigned max_lds_size = 8 * 1024;
627 const unsigned esgs_itemsize = es->esgs_itemsize / 4;
628 unsigned esgs_lds_size;
629
630 /* All these are per subgroup: */
631 const unsigned max_out_prims = 32 * 1024;
632 const unsigned max_es_verts = 255;
633 const unsigned ideal_gs_prims = 64;
634 unsigned max_gs_prims, gs_prims;
635 unsigned min_es_verts, es_verts, worst_case_es_verts;
636
637 assert(gs_num_invocations <= 32); /* GL maximum */
638
639 if (uses_adjacency || gs_num_invocations > 1)
640 max_gs_prims = 127 / gs_num_invocations;
641 else
642 max_gs_prims = 255;
643
644 /* MAX_PRIMS_PER_SUBGROUP = gs_prims * max_vert_out * gs_invocations.
645 * Make sure we don't go over the maximum value.
646 */
647 max_gs_prims = MIN2(max_gs_prims,
648 max_out_prims /
649 (gs->gs_max_out_vertices * gs_num_invocations));
650 assert(max_gs_prims > 0);
651
652 /* If the primitive has adjacency, halve the number of vertices
653 * that will be reused in multiple primitives.
654 */
655 min_es_verts = gs->gs_input_verts_per_prim / (uses_adjacency ? 2 : 1);
656
657 gs_prims = MIN2(ideal_gs_prims, max_gs_prims);
658 worst_case_es_verts = MIN2(min_es_verts * gs_prims, max_es_verts);
659
660 /* Compute ESGS LDS size based on the worst case number of ES vertices
661 * needed to create the target number of GS prims per subgroup.
662 */
663 esgs_lds_size = esgs_itemsize * worst_case_es_verts;
664
665 /* If total LDS usage is too big, refactor partitions based on ratio
666 * of ESGS item sizes.
667 */
668 if (esgs_lds_size > max_lds_size) {
669 /* Our target GS Prims Per Subgroup was too large. Calculate
670 * the maximum number of GS Prims Per Subgroup that will fit
671 * into LDS, capped by the maximum that the hardware can support.
672 */
673 gs_prims = MIN2((max_lds_size / (esgs_itemsize * min_es_verts)),
674 max_gs_prims);
675 assert(gs_prims > 0);
676 worst_case_es_verts = MIN2(min_es_verts * gs_prims,
677 max_es_verts);
678
679 esgs_lds_size = esgs_itemsize * worst_case_es_verts;
680 assert(esgs_lds_size <= max_lds_size);
681 }
682
683 /* Now calculate remaining ESGS information. */
684 if (esgs_lds_size)
685 es_verts = MIN2(esgs_lds_size / esgs_itemsize, max_es_verts);
686 else
687 es_verts = max_es_verts;
688
689 /* Vertices for adjacency primitives are not always reused, so restore
690 * it for ES_VERTS_PER_SUBGRP.
691 */
692 min_es_verts = gs->gs_input_verts_per_prim;
693
694 /* For normal primitives, the VGT only checks if they are past the ES
695 * verts per subgroup after allocating a full GS primitive and if they
696 * are, kick off a new subgroup. But if those additional ES verts are
697 * unique (e.g. not reused) we need to make sure there is enough LDS
698 * space to account for those ES verts beyond ES_VERTS_PER_SUBGRP.
699 */
700 es_verts -= min_es_verts - 1;
701
702 out->es_verts_per_subgroup = es_verts;
703 out->gs_prims_per_subgroup = gs_prims;
704 out->gs_inst_prims_in_subgroup = gs_prims * gs_num_invocations;
705 out->max_prims_per_subgroup = out->gs_inst_prims_in_subgroup *
706 gs->gs_max_out_vertices;
707 out->lds_size = align(esgs_lds_size, 128) / 128;
708
709 assert(out->max_prims_per_subgroup <= max_out_prims);
710 }
711
712 static void si_shader_gs(struct si_screen *sscreen, struct si_shader *shader)
713 {
714 struct si_shader_selector *sel = shader->selector;
715 const ubyte *num_components = sel->info.num_stream_output_components;
716 unsigned gs_num_invocations = sel->gs_num_invocations;
717 struct si_pm4_state *pm4;
718 uint64_t va;
719 unsigned max_stream = sel->max_gs_stream;
720 unsigned offset;
721
722 pm4 = si_get_shader_pm4_state(shader);
723 if (!pm4)
724 return;
725
726 offset = num_components[0] * sel->gs_max_out_vertices;
727 si_pm4_set_reg(pm4, R_028A60_VGT_GSVS_RING_OFFSET_1, offset);
728 if (max_stream >= 1)
729 offset += num_components[1] * sel->gs_max_out_vertices;
730 si_pm4_set_reg(pm4, R_028A64_VGT_GSVS_RING_OFFSET_2, offset);
731 if (max_stream >= 2)
732 offset += num_components[2] * sel->gs_max_out_vertices;
733 si_pm4_set_reg(pm4, R_028A68_VGT_GSVS_RING_OFFSET_3, offset);
734 if (max_stream >= 3)
735 offset += num_components[3] * sel->gs_max_out_vertices;
736 si_pm4_set_reg(pm4, R_028AB0_VGT_GSVS_RING_ITEMSIZE, offset);
737
738 /* The GSVS_RING_ITEMSIZE register takes 15 bits */
739 assert(offset < (1 << 15));
740
741 si_pm4_set_reg(pm4, R_028B38_VGT_GS_MAX_VERT_OUT, sel->gs_max_out_vertices);
742
743 si_pm4_set_reg(pm4, R_028B5C_VGT_GS_VERT_ITEMSIZE, num_components[0]);
744 si_pm4_set_reg(pm4, R_028B60_VGT_GS_VERT_ITEMSIZE_1, (max_stream >= 1) ? num_components[1] : 0);
745 si_pm4_set_reg(pm4, R_028B64_VGT_GS_VERT_ITEMSIZE_2, (max_stream >= 2) ? num_components[2] : 0);
746 si_pm4_set_reg(pm4, R_028B68_VGT_GS_VERT_ITEMSIZE_3, (max_stream >= 3) ? num_components[3] : 0);
747
748 si_pm4_set_reg(pm4, R_028B90_VGT_GS_INSTANCE_CNT,
749 S_028B90_CNT(MIN2(gs_num_invocations, 127)) |
750 S_028B90_ENABLE(gs_num_invocations > 0));
751
752 va = shader->bo->gpu_address;
753 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
754
755 if (sscreen->b.chip_class >= GFX9) {
756 unsigned input_prim = sel->info.properties[TGSI_PROPERTY_GS_INPUT_PRIM];
757 unsigned es_type = shader->key.part.gs.es->type;
758 unsigned es_vgpr_comp_cnt, gs_vgpr_comp_cnt;
759 struct gfx9_gs_info gs_info;
760
761 if (es_type == PIPE_SHADER_VERTEX)
762 /* VGPR0-3: (VertexID, InstanceID / StepRate0, ...) */
763 es_vgpr_comp_cnt = shader->info.uses_instanceid ? 1 : 0;
764 else if (es_type == PIPE_SHADER_TESS_EVAL)
765 es_vgpr_comp_cnt = shader->key.part.gs.es->info.uses_primid ? 3 : 2;
766 else
767 unreachable("invalid shader selector type");
768
769 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
770 * VGPR[0:4] are always loaded.
771 */
772 if (sel->info.uses_invocationid)
773 gs_vgpr_comp_cnt = 3; /* VGPR3 contains InvocationID. */
774 else if (sel->info.uses_primid)
775 gs_vgpr_comp_cnt = 2; /* VGPR2 contains PrimitiveID. */
776 else if (input_prim >= PIPE_PRIM_TRIANGLES)
777 gs_vgpr_comp_cnt = 1; /* VGPR1 contains offsets 2, 3 */
778 else
779 gs_vgpr_comp_cnt = 0; /* VGPR0 contains offsets 0, 1 */
780
781 gfx9_get_gs_info(shader->key.part.gs.es, sel, &gs_info);
782
783 si_pm4_set_reg(pm4, R_00B210_SPI_SHADER_PGM_LO_ES, va >> 8);
784 si_pm4_set_reg(pm4, R_00B214_SPI_SHADER_PGM_HI_ES, va >> 40);
785
786 si_pm4_set_reg(pm4, R_00B228_SPI_SHADER_PGM_RSRC1_GS,
787 S_00B228_VGPRS((shader->config.num_vgprs - 1) / 4) |
788 S_00B228_SGPRS((shader->config.num_sgprs - 1) / 8) |
789 S_00B228_DX10_CLAMP(1) |
790 S_00B228_FLOAT_MODE(shader->config.float_mode) |
791 S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt));
792 si_pm4_set_reg(pm4, R_00B22C_SPI_SHADER_PGM_RSRC2_GS,
793 S_00B22C_USER_SGPR(GFX9_GS_NUM_USER_SGPR) |
794 S_00B22C_USER_SGPR_MSB(GFX9_GS_NUM_USER_SGPR >> 5) |
795 S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt) |
796 S_00B22C_OC_LDS_EN(es_type == PIPE_SHADER_TESS_EVAL) |
797 S_00B22C_LDS_SIZE(gs_info.lds_size) |
798 S_00B22C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
799
800 si_pm4_set_reg(pm4, R_028A44_VGT_GS_ONCHIP_CNTL,
801 S_028A44_ES_VERTS_PER_SUBGRP(gs_info.es_verts_per_subgroup) |
802 S_028A44_GS_PRIMS_PER_SUBGRP(gs_info.gs_prims_per_subgroup) |
803 S_028A44_GS_INST_PRIMS_IN_SUBGRP(gs_info.gs_inst_prims_in_subgroup));
804 si_pm4_set_reg(pm4, R_028A94_VGT_GS_MAX_PRIMS_PER_SUBGROUP,
805 S_028A94_MAX_PRIMS_PER_SUBGROUP(gs_info.max_prims_per_subgroup));
806 si_pm4_set_reg(pm4, R_028AAC_VGT_ESGS_RING_ITEMSIZE,
807 shader->key.part.gs.es->esgs_itemsize / 4);
808
809 if (es_type == PIPE_SHADER_TESS_EVAL)
810 si_set_tesseval_regs(sscreen, shader->key.part.gs.es, pm4);
811
812 polaris_set_vgt_vertex_reuse(sscreen, shader->key.part.gs.es,
813 NULL, pm4);
814 } else {
815 si_pm4_set_reg(pm4, R_00B220_SPI_SHADER_PGM_LO_GS, va >> 8);
816 si_pm4_set_reg(pm4, R_00B224_SPI_SHADER_PGM_HI_GS, va >> 40);
817
818 si_pm4_set_reg(pm4, R_00B228_SPI_SHADER_PGM_RSRC1_GS,
819 S_00B228_VGPRS((shader->config.num_vgprs - 1) / 4) |
820 S_00B228_SGPRS((shader->config.num_sgprs - 1) / 8) |
821 S_00B228_DX10_CLAMP(1) |
822 S_00B228_FLOAT_MODE(shader->config.float_mode));
823 si_pm4_set_reg(pm4, R_00B22C_SPI_SHADER_PGM_RSRC2_GS,
824 S_00B22C_USER_SGPR(GFX6_GS_NUM_USER_SGPR) |
825 S_00B22C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
826 }
827 }
828
829 /**
830 * Compute the state for \p shader, which will run as a vertex shader on the
831 * hardware.
832 *
833 * If \p gs is non-NULL, it points to the geometry shader for which this shader
834 * is the copy shader.
835 */
836 static void si_shader_vs(struct si_screen *sscreen, struct si_shader *shader,
837 struct si_shader_selector *gs)
838 {
839 struct si_pm4_state *pm4;
840 unsigned num_user_sgprs;
841 unsigned nparams, vgpr_comp_cnt;
842 uint64_t va;
843 unsigned oc_lds_en;
844 unsigned window_space =
845 shader->selector->info.properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION];
846 bool enable_prim_id = shader->key.mono.u.vs_export_prim_id || shader->selector->info.uses_primid;
847
848 pm4 = si_get_shader_pm4_state(shader);
849 if (!pm4)
850 return;
851
852 /* We always write VGT_GS_MODE in the VS state, because every switch
853 * between different shader pipelines involving a different GS or no
854 * GS at all involves a switch of the VS (different GS use different
855 * copy shaders). On the other hand, when the API switches from a GS to
856 * no GS and then back to the same GS used originally, the GS state is
857 * not sent again.
858 */
859 if (!gs) {
860 unsigned mode = 0;
861
862 /* PrimID needs GS scenario A.
863 * GFX9 also needs it when ViewportIndex is enabled.
864 */
865 if (enable_prim_id ||
866 (sscreen->b.chip_class >= GFX9 &&
867 shader->selector->info.writes_viewport_index))
868 mode = V_028A40_GS_SCENARIO_A;
869
870 si_pm4_set_reg(pm4, R_028A40_VGT_GS_MODE, S_028A40_MODE(mode));
871 si_pm4_set_reg(pm4, R_028A84_VGT_PRIMITIVEID_EN, enable_prim_id);
872 } else {
873 si_pm4_set_reg(pm4, R_028A40_VGT_GS_MODE, si_vgt_gs_mode(gs));
874 si_pm4_set_reg(pm4, R_028A84_VGT_PRIMITIVEID_EN, 0);
875 }
876
877 va = shader->bo->gpu_address;
878 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
879
880 if (gs) {
881 vgpr_comp_cnt = 0; /* only VertexID is needed for GS-COPY. */
882 num_user_sgprs = SI_GSCOPY_NUM_USER_SGPR;
883 } else if (shader->selector->type == PIPE_SHADER_VERTEX) {
884 /* VGPR0-3: (VertexID, InstanceID / StepRate0, PrimID, InstanceID)
885 * If PrimID is disabled. InstanceID / StepRate1 is loaded instead.
886 * StepRate0 is set to 1. so that VGPR3 doesn't have to be loaded.
887 */
888 vgpr_comp_cnt = enable_prim_id ? 2 : (shader->info.uses_instanceid ? 1 : 0);
889 num_user_sgprs = SI_VS_NUM_USER_SGPR;
890 } else if (shader->selector->type == PIPE_SHADER_TESS_EVAL) {
891 vgpr_comp_cnt = enable_prim_id ? 3 : 2;
892 num_user_sgprs = SI_TES_NUM_USER_SGPR;
893 } else
894 unreachable("invalid shader selector type");
895
896 /* VS is required to export at least one param. */
897 nparams = MAX2(shader->info.nr_param_exports, 1);
898 si_pm4_set_reg(pm4, R_0286C4_SPI_VS_OUT_CONFIG,
899 S_0286C4_VS_EXPORT_COUNT(nparams - 1));
900
901 si_pm4_set_reg(pm4, R_02870C_SPI_SHADER_POS_FORMAT,
902 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP) |
903 S_02870C_POS1_EXPORT_FORMAT(shader->info.nr_pos_exports > 1 ?
904 V_02870C_SPI_SHADER_4COMP :
905 V_02870C_SPI_SHADER_NONE) |
906 S_02870C_POS2_EXPORT_FORMAT(shader->info.nr_pos_exports > 2 ?
907 V_02870C_SPI_SHADER_4COMP :
908 V_02870C_SPI_SHADER_NONE) |
909 S_02870C_POS3_EXPORT_FORMAT(shader->info.nr_pos_exports > 3 ?
910 V_02870C_SPI_SHADER_4COMP :
911 V_02870C_SPI_SHADER_NONE));
912
913 oc_lds_en = shader->selector->type == PIPE_SHADER_TESS_EVAL ? 1 : 0;
914
915 si_pm4_set_reg(pm4, R_00B120_SPI_SHADER_PGM_LO_VS, va >> 8);
916 si_pm4_set_reg(pm4, R_00B124_SPI_SHADER_PGM_HI_VS, va >> 40);
917 si_pm4_set_reg(pm4, R_00B128_SPI_SHADER_PGM_RSRC1_VS,
918 S_00B128_VGPRS((shader->config.num_vgprs - 1) / 4) |
919 S_00B128_SGPRS((shader->config.num_sgprs - 1) / 8) |
920 S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt) |
921 S_00B128_DX10_CLAMP(1) |
922 S_00B128_FLOAT_MODE(shader->config.float_mode));
923 si_pm4_set_reg(pm4, R_00B12C_SPI_SHADER_PGM_RSRC2_VS,
924 S_00B12C_USER_SGPR(num_user_sgprs) |
925 S_00B12C_OC_LDS_EN(oc_lds_en) |
926 S_00B12C_SO_BASE0_EN(!!shader->selector->so.stride[0]) |
927 S_00B12C_SO_BASE1_EN(!!shader->selector->so.stride[1]) |
928 S_00B12C_SO_BASE2_EN(!!shader->selector->so.stride[2]) |
929 S_00B12C_SO_BASE3_EN(!!shader->selector->so.stride[3]) |
930 S_00B12C_SO_EN(!!shader->selector->so.num_outputs) |
931 S_00B12C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
932 if (window_space)
933 si_pm4_set_reg(pm4, R_028818_PA_CL_VTE_CNTL,
934 S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1));
935 else
936 si_pm4_set_reg(pm4, R_028818_PA_CL_VTE_CNTL,
937 S_028818_VTX_W0_FMT(1) |
938 S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
939 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
940 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1));
941
942 if (shader->selector->type == PIPE_SHADER_TESS_EVAL)
943 si_set_tesseval_regs(sscreen, shader->selector, pm4);
944
945 polaris_set_vgt_vertex_reuse(sscreen, shader->selector, shader, pm4);
946 }
947
948 static unsigned si_get_ps_num_interp(struct si_shader *ps)
949 {
950 struct tgsi_shader_info *info = &ps->selector->info;
951 unsigned num_colors = !!(info->colors_read & 0x0f) +
952 !!(info->colors_read & 0xf0);
953 unsigned num_interp = ps->selector->info.num_inputs +
954 (ps->key.part.ps.prolog.color_two_side ? num_colors : 0);
955
956 assert(num_interp <= 32);
957 return MIN2(num_interp, 32);
958 }
959
960 static unsigned si_get_spi_shader_col_format(struct si_shader *shader)
961 {
962 unsigned value = shader->key.part.ps.epilog.spi_shader_col_format;
963 unsigned i, num_targets = (util_last_bit(value) + 3) / 4;
964
965 /* If the i-th target format is set, all previous target formats must
966 * be non-zero to avoid hangs.
967 */
968 for (i = 0; i < num_targets; i++)
969 if (!(value & (0xf << (i * 4))))
970 value |= V_028714_SPI_SHADER_32_R << (i * 4);
971
972 return value;
973 }
974
975 static unsigned si_get_cb_shader_mask(unsigned spi_shader_col_format)
976 {
977 unsigned i, cb_shader_mask = 0;
978
979 for (i = 0; i < 8; i++) {
980 switch ((spi_shader_col_format >> (i * 4)) & 0xf) {
981 case V_028714_SPI_SHADER_ZERO:
982 break;
983 case V_028714_SPI_SHADER_32_R:
984 cb_shader_mask |= 0x1 << (i * 4);
985 break;
986 case V_028714_SPI_SHADER_32_GR:
987 cb_shader_mask |= 0x3 << (i * 4);
988 break;
989 case V_028714_SPI_SHADER_32_AR:
990 cb_shader_mask |= 0x9 << (i * 4);
991 break;
992 case V_028714_SPI_SHADER_FP16_ABGR:
993 case V_028714_SPI_SHADER_UNORM16_ABGR:
994 case V_028714_SPI_SHADER_SNORM16_ABGR:
995 case V_028714_SPI_SHADER_UINT16_ABGR:
996 case V_028714_SPI_SHADER_SINT16_ABGR:
997 case V_028714_SPI_SHADER_32_ABGR:
998 cb_shader_mask |= 0xf << (i * 4);
999 break;
1000 default:
1001 assert(0);
1002 }
1003 }
1004 return cb_shader_mask;
1005 }
1006
1007 static void si_shader_ps(struct si_shader *shader)
1008 {
1009 struct tgsi_shader_info *info = &shader->selector->info;
1010 struct si_pm4_state *pm4;
1011 unsigned spi_ps_in_control, spi_shader_col_format, cb_shader_mask;
1012 unsigned spi_baryc_cntl = S_0286E0_FRONT_FACE_ALL_BITS(1);
1013 uint64_t va;
1014 unsigned input_ena = shader->config.spi_ps_input_ena;
1015
1016 /* we need to enable at least one of them, otherwise we hang the GPU */
1017 assert(G_0286CC_PERSP_SAMPLE_ENA(input_ena) ||
1018 G_0286CC_PERSP_CENTER_ENA(input_ena) ||
1019 G_0286CC_PERSP_CENTROID_ENA(input_ena) ||
1020 G_0286CC_PERSP_PULL_MODEL_ENA(input_ena) ||
1021 G_0286CC_LINEAR_SAMPLE_ENA(input_ena) ||
1022 G_0286CC_LINEAR_CENTER_ENA(input_ena) ||
1023 G_0286CC_LINEAR_CENTROID_ENA(input_ena) ||
1024 G_0286CC_LINE_STIPPLE_TEX_ENA(input_ena));
1025 /* POS_W_FLOAT_ENA requires one of the perspective weights. */
1026 assert(!G_0286CC_POS_W_FLOAT_ENA(input_ena) ||
1027 G_0286CC_PERSP_SAMPLE_ENA(input_ena) ||
1028 G_0286CC_PERSP_CENTER_ENA(input_ena) ||
1029 G_0286CC_PERSP_CENTROID_ENA(input_ena) ||
1030 G_0286CC_PERSP_PULL_MODEL_ENA(input_ena));
1031
1032 /* Validate interpolation optimization flags (read as implications). */
1033 assert(!shader->key.part.ps.prolog.bc_optimize_for_persp ||
1034 (G_0286CC_PERSP_CENTER_ENA(input_ena) &&
1035 G_0286CC_PERSP_CENTROID_ENA(input_ena)));
1036 assert(!shader->key.part.ps.prolog.bc_optimize_for_linear ||
1037 (G_0286CC_LINEAR_CENTER_ENA(input_ena) &&
1038 G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
1039 assert(!shader->key.part.ps.prolog.force_persp_center_interp ||
1040 (!G_0286CC_PERSP_SAMPLE_ENA(input_ena) &&
1041 !G_0286CC_PERSP_CENTROID_ENA(input_ena)));
1042 assert(!shader->key.part.ps.prolog.force_linear_center_interp ||
1043 (!G_0286CC_LINEAR_SAMPLE_ENA(input_ena) &&
1044 !G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
1045 assert(!shader->key.part.ps.prolog.force_persp_sample_interp ||
1046 (!G_0286CC_PERSP_CENTER_ENA(input_ena) &&
1047 !G_0286CC_PERSP_CENTROID_ENA(input_ena)));
1048 assert(!shader->key.part.ps.prolog.force_linear_sample_interp ||
1049 (!G_0286CC_LINEAR_CENTER_ENA(input_ena) &&
1050 !G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
1051
1052 /* Validate cases when the optimizations are off (read as implications). */
1053 assert(shader->key.part.ps.prolog.bc_optimize_for_persp ||
1054 !G_0286CC_PERSP_CENTER_ENA(input_ena) ||
1055 !G_0286CC_PERSP_CENTROID_ENA(input_ena));
1056 assert(shader->key.part.ps.prolog.bc_optimize_for_linear ||
1057 !G_0286CC_LINEAR_CENTER_ENA(input_ena) ||
1058 !G_0286CC_LINEAR_CENTROID_ENA(input_ena));
1059
1060 pm4 = si_get_shader_pm4_state(shader);
1061 if (!pm4)
1062 return;
1063
1064 /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
1065 * Possible vaules:
1066 * 0 -> Position = pixel center
1067 * 1 -> Position = pixel centroid
1068 * 2 -> Position = at sample position
1069 *
1070 * From GLSL 4.5 specification, section 7.1:
1071 * "The variable gl_FragCoord is available as an input variable from
1072 * within fragment shaders and it holds the window relative coordinates
1073 * (x, y, z, 1/w) values for the fragment. If multi-sampling, this
1074 * value can be for any location within the pixel, or one of the
1075 * fragment samples. The use of centroid does not further restrict
1076 * this value to be inside the current primitive."
1077 *
1078 * Meaning that centroid has no effect and we can return anything within
1079 * the pixel. Thus, return the value at sample position, because that's
1080 * the most accurate one shaders can get.
1081 */
1082 spi_baryc_cntl |= S_0286E0_POS_FLOAT_LOCATION(2);
1083
1084 if (info->properties[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER] ==
1085 TGSI_FS_COORD_PIXEL_CENTER_INTEGER)
1086 spi_baryc_cntl |= S_0286E0_POS_FLOAT_ULC(1);
1087
1088 spi_shader_col_format = si_get_spi_shader_col_format(shader);
1089 cb_shader_mask = si_get_cb_shader_mask(spi_shader_col_format);
1090
1091 /* Ensure that some export memory is always allocated, for two reasons:
1092 *
1093 * 1) Correctness: The hardware ignores the EXEC mask if no export
1094 * memory is allocated, so KILL and alpha test do not work correctly
1095 * without this.
1096 * 2) Performance: Every shader needs at least a NULL export, even when
1097 * it writes no color/depth output. The NULL export instruction
1098 * stalls without this setting.
1099 *
1100 * Don't add this to CB_SHADER_MASK.
1101 */
1102 if (!spi_shader_col_format &&
1103 !info->writes_z && !info->writes_stencil && !info->writes_samplemask)
1104 spi_shader_col_format = V_028714_SPI_SHADER_32_R;
1105
1106 si_pm4_set_reg(pm4, R_0286CC_SPI_PS_INPUT_ENA, input_ena);
1107 si_pm4_set_reg(pm4, R_0286D0_SPI_PS_INPUT_ADDR,
1108 shader->config.spi_ps_input_addr);
1109
1110 /* Set interpolation controls. */
1111 spi_ps_in_control = S_0286D8_NUM_INTERP(si_get_ps_num_interp(shader));
1112
1113 /* Set registers. */
1114 si_pm4_set_reg(pm4, R_0286E0_SPI_BARYC_CNTL, spi_baryc_cntl);
1115 si_pm4_set_reg(pm4, R_0286D8_SPI_PS_IN_CONTROL, spi_ps_in_control);
1116
1117 si_pm4_set_reg(pm4, R_028710_SPI_SHADER_Z_FORMAT,
1118 si_get_spi_shader_z_format(info->writes_z,
1119 info->writes_stencil,
1120 info->writes_samplemask));
1121
1122 si_pm4_set_reg(pm4, R_028714_SPI_SHADER_COL_FORMAT, spi_shader_col_format);
1123 si_pm4_set_reg(pm4, R_02823C_CB_SHADER_MASK, cb_shader_mask);
1124
1125 va = shader->bo->gpu_address;
1126 si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ, RADEON_PRIO_SHADER_BINARY);
1127 si_pm4_set_reg(pm4, R_00B020_SPI_SHADER_PGM_LO_PS, va >> 8);
1128 si_pm4_set_reg(pm4, R_00B024_SPI_SHADER_PGM_HI_PS, va >> 40);
1129
1130 si_pm4_set_reg(pm4, R_00B028_SPI_SHADER_PGM_RSRC1_PS,
1131 S_00B028_VGPRS((shader->config.num_vgprs - 1) / 4) |
1132 S_00B028_SGPRS((shader->config.num_sgprs - 1) / 8) |
1133 S_00B028_DX10_CLAMP(1) |
1134 S_00B028_FLOAT_MODE(shader->config.float_mode));
1135 si_pm4_set_reg(pm4, R_00B02C_SPI_SHADER_PGM_RSRC2_PS,
1136 S_00B02C_EXTRA_LDS_SIZE(shader->config.lds_size) |
1137 S_00B02C_USER_SGPR(SI_PS_NUM_USER_SGPR) |
1138 S_00B32C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0));
1139 }
1140
1141 static void si_shader_init_pm4_state(struct si_screen *sscreen,
1142 struct si_shader *shader)
1143 {
1144 switch (shader->selector->type) {
1145 case PIPE_SHADER_VERTEX:
1146 if (shader->key.as_ls)
1147 si_shader_ls(sscreen, shader);
1148 else if (shader->key.as_es)
1149 si_shader_es(sscreen, shader);
1150 else
1151 si_shader_vs(sscreen, shader, NULL);
1152 break;
1153 case PIPE_SHADER_TESS_CTRL:
1154 si_shader_hs(sscreen, shader);
1155 break;
1156 case PIPE_SHADER_TESS_EVAL:
1157 if (shader->key.as_es)
1158 si_shader_es(sscreen, shader);
1159 else
1160 si_shader_vs(sscreen, shader, NULL);
1161 break;
1162 case PIPE_SHADER_GEOMETRY:
1163 si_shader_gs(sscreen, shader);
1164 break;
1165 case PIPE_SHADER_FRAGMENT:
1166 si_shader_ps(shader);
1167 break;
1168 default:
1169 assert(0);
1170 }
1171 }
1172
1173 static unsigned si_get_alpha_test_func(struct si_context *sctx)
1174 {
1175 /* Alpha-test should be disabled if colorbuffer 0 is integer. */
1176 if (sctx->queued.named.dsa)
1177 return sctx->queued.named.dsa->alpha_func;
1178
1179 return PIPE_FUNC_ALWAYS;
1180 }
1181
1182 static void si_shader_selector_key_vs(struct si_context *sctx,
1183 struct si_shader_selector *vs,
1184 struct si_shader_key *key,
1185 struct si_vs_prolog_bits *prolog_key)
1186 {
1187 if (!sctx->vertex_elements)
1188 return;
1189
1190 unsigned count = MIN2(vs->info.num_inputs,
1191 sctx->vertex_elements->count);
1192 for (unsigned i = 0; i < count; ++i) {
1193 prolog_key->instance_divisors[i] =
1194 sctx->vertex_elements->elements[i].instance_divisor;
1195 }
1196
1197 memcpy(key->mono.vs_fix_fetch, sctx->vertex_elements->fix_fetch, count);
1198 }
1199
1200 static void si_shader_selector_key_hw_vs(struct si_context *sctx,
1201 struct si_shader_selector *vs,
1202 struct si_shader_key *key)
1203 {
1204 struct si_shader_selector *ps = sctx->ps_shader.cso;
1205
1206 key->opt.hw_vs.clip_disable =
1207 sctx->queued.named.rasterizer->clip_plane_enable == 0 &&
1208 (vs->info.clipdist_writemask ||
1209 vs->info.writes_clipvertex) &&
1210 !vs->info.culldist_writemask;
1211
1212 /* Find out if PS is disabled. */
1213 bool ps_disabled = true;
1214 if (ps) {
1215 bool ps_modifies_zs = ps->info.uses_kill ||
1216 ps->info.writes_z ||
1217 ps->info.writes_stencil ||
1218 ps->info.writes_samplemask ||
1219 si_get_alpha_test_func(sctx) != PIPE_FUNC_ALWAYS;
1220
1221 unsigned ps_colormask = sctx->framebuffer.colorbuf_enabled_4bit &
1222 sctx->queued.named.blend->cb_target_mask;
1223 if (!ps->info.properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS])
1224 ps_colormask &= ps->colors_written_4bit;
1225
1226 ps_disabled = sctx->queued.named.rasterizer->rasterizer_discard ||
1227 (!ps_colormask &&
1228 !ps_modifies_zs &&
1229 !ps->info.writes_memory);
1230 }
1231
1232 /* Find out which VS outputs aren't used by the PS. */
1233 uint64_t outputs_written = vs->outputs_written;
1234 uint64_t inputs_read = 0;
1235
1236 /* ignore POSITION, PSIZE */
1237 outputs_written &= ~((1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_POSITION, 0) |
1238 (1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_PSIZE, 0))));
1239
1240 if (!ps_disabled) {
1241 inputs_read = ps->inputs_read;
1242 }
1243
1244 uint64_t linked = outputs_written & inputs_read;
1245
1246 key->opt.hw_vs.kill_outputs = ~linked & outputs_written;
1247 }
1248
1249 /* Compute the key for the hw shader variant */
1250 static inline void si_shader_selector_key(struct pipe_context *ctx,
1251 struct si_shader_selector *sel,
1252 struct si_shader_key *key)
1253 {
1254 struct si_context *sctx = (struct si_context *)ctx;
1255
1256 memset(key, 0, sizeof(*key));
1257
1258 switch (sel->type) {
1259 case PIPE_SHADER_VERTEX:
1260 si_shader_selector_key_vs(sctx, sel, key, &key->part.vs.prolog);
1261
1262 if (sctx->tes_shader.cso)
1263 key->as_ls = 1;
1264 else if (sctx->gs_shader.cso)
1265 key->as_es = 1;
1266 else {
1267 si_shader_selector_key_hw_vs(sctx, sel, key);
1268
1269 if (sctx->ps_shader.cso && sctx->ps_shader.cso->info.uses_primid)
1270 key->mono.u.vs_export_prim_id = 1;
1271 }
1272 break;
1273 case PIPE_SHADER_TESS_CTRL:
1274 if (sctx->b.chip_class >= GFX9) {
1275 si_shader_selector_key_vs(sctx, sctx->vs_shader.cso,
1276 key, &key->part.tcs.ls_prolog);
1277 key->part.tcs.ls = sctx->vs_shader.cso;
1278 }
1279
1280 key->part.tcs.epilog.prim_mode =
1281 sctx->tes_shader.cso->info.properties[TGSI_PROPERTY_TES_PRIM_MODE];
1282 key->part.tcs.epilog.tes_reads_tess_factors =
1283 sctx->tes_shader.cso->info.reads_tess_factors;
1284
1285 if (sel == sctx->fixed_func_tcs_shader.cso)
1286 key->mono.u.ff_tcs_inputs_to_copy = sctx->vs_shader.cso->outputs_written;
1287 break;
1288 case PIPE_SHADER_TESS_EVAL:
1289 if (sctx->gs_shader.cso)
1290 key->as_es = 1;
1291 else {
1292 si_shader_selector_key_hw_vs(sctx, sel, key);
1293
1294 if (sctx->ps_shader.cso && sctx->ps_shader.cso->info.uses_primid)
1295 key->mono.u.vs_export_prim_id = 1;
1296 }
1297 break;
1298 case PIPE_SHADER_GEOMETRY:
1299 if (sctx->b.chip_class >= GFX9) {
1300 if (sctx->tes_shader.cso) {
1301 key->part.gs.es = sctx->tes_shader.cso;
1302 } else {
1303 si_shader_selector_key_vs(sctx, sctx->vs_shader.cso,
1304 key, &key->part.gs.vs_prolog);
1305 key->part.gs.es = sctx->vs_shader.cso;
1306 }
1307
1308 /* Merged ES-GS can have unbalanced wave usage.
1309 *
1310 * ES threads are per-vertex, while GS threads are
1311 * per-primitive. So without any amplification, there
1312 * are fewer GS threads than ES threads, which can result
1313 * in empty (no-op) GS waves. With too much amplification,
1314 * there are more GS threads than ES threads, which
1315 * can result in empty (no-op) ES waves.
1316 *
1317 * Non-monolithic shaders are implemented by setting EXEC
1318 * at the beginning of shader parts, and don't jump to
1319 * the end if EXEC is 0.
1320 *
1321 * Monolithic shaders use conditional blocks, so they can
1322 * jump and skip empty waves of ES or GS. So set this to
1323 * always use optimized variants, which are monolithic.
1324 */
1325 key->opt.prefer_mono = 1;
1326 }
1327 key->part.gs.prolog.tri_strip_adj_fix = sctx->gs_tri_strip_adj_fix;
1328 break;
1329 case PIPE_SHADER_FRAGMENT: {
1330 struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
1331 struct si_state_blend *blend = sctx->queued.named.blend;
1332
1333 if (sel->info.properties[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS] &&
1334 sel->info.colors_written == 0x1)
1335 key->part.ps.epilog.last_cbuf = MAX2(sctx->framebuffer.state.nr_cbufs, 1) - 1;
1336
1337 if (blend) {
1338 /* Select the shader color format based on whether
1339 * blending or alpha are needed.
1340 */
1341 key->part.ps.epilog.spi_shader_col_format =
1342 (blend->blend_enable_4bit & blend->need_src_alpha_4bit &
1343 sctx->framebuffer.spi_shader_col_format_blend_alpha) |
1344 (blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
1345 sctx->framebuffer.spi_shader_col_format_blend) |
1346 (~blend->blend_enable_4bit & blend->need_src_alpha_4bit &
1347 sctx->framebuffer.spi_shader_col_format_alpha) |
1348 (~blend->blend_enable_4bit & ~blend->need_src_alpha_4bit &
1349 sctx->framebuffer.spi_shader_col_format);
1350
1351 /* The output for dual source blending should have
1352 * the same format as the first output.
1353 */
1354 if (blend->dual_src_blend)
1355 key->part.ps.epilog.spi_shader_col_format |=
1356 (key->part.ps.epilog.spi_shader_col_format & 0xf) << 4;
1357 } else
1358 key->part.ps.epilog.spi_shader_col_format = sctx->framebuffer.spi_shader_col_format;
1359
1360 /* If alpha-to-coverage is enabled, we have to export alpha
1361 * even if there is no color buffer.
1362 */
1363 if (!(key->part.ps.epilog.spi_shader_col_format & 0xf) &&
1364 blend && blend->alpha_to_coverage)
1365 key->part.ps.epilog.spi_shader_col_format |= V_028710_SPI_SHADER_32_AR;
1366
1367 /* On SI and CIK except Hawaii, the CB doesn't clamp outputs
1368 * to the range supported by the type if a channel has less
1369 * than 16 bits and the export format is 16_ABGR.
1370 */
1371 if (sctx->b.chip_class <= CIK && sctx->b.family != CHIP_HAWAII) {
1372 key->part.ps.epilog.color_is_int8 = sctx->framebuffer.color_is_int8;
1373 key->part.ps.epilog.color_is_int10 = sctx->framebuffer.color_is_int10;
1374 }
1375
1376 /* Disable unwritten outputs (if WRITE_ALL_CBUFS isn't enabled). */
1377 if (!key->part.ps.epilog.last_cbuf) {
1378 key->part.ps.epilog.spi_shader_col_format &= sel->colors_written_4bit;
1379 key->part.ps.epilog.color_is_int8 &= sel->info.colors_written;
1380 key->part.ps.epilog.color_is_int10 &= sel->info.colors_written;
1381 }
1382
1383 if (rs) {
1384 bool is_poly = (sctx->current_rast_prim >= PIPE_PRIM_TRIANGLES &&
1385 sctx->current_rast_prim <= PIPE_PRIM_POLYGON) ||
1386 sctx->current_rast_prim >= PIPE_PRIM_TRIANGLES_ADJACENCY;
1387 bool is_line = !is_poly && sctx->current_rast_prim != PIPE_PRIM_POINTS;
1388
1389 key->part.ps.prolog.color_two_side = rs->two_side && sel->info.colors_read;
1390 key->part.ps.prolog.flatshade_colors = rs->flatshade && sel->info.colors_read;
1391
1392 if (sctx->queued.named.blend) {
1393 key->part.ps.epilog.alpha_to_one = sctx->queued.named.blend->alpha_to_one &&
1394 rs->multisample_enable;
1395 }
1396
1397 key->part.ps.prolog.poly_stipple = rs->poly_stipple_enable && is_poly;
1398 key->part.ps.epilog.poly_line_smoothing = ((is_poly && rs->poly_smooth) ||
1399 (is_line && rs->line_smooth)) &&
1400 sctx->framebuffer.nr_samples <= 1;
1401 key->part.ps.epilog.clamp_color = rs->clamp_fragment_color;
1402
1403 if (rs->force_persample_interp &&
1404 rs->multisample_enable &&
1405 sctx->framebuffer.nr_samples > 1 &&
1406 sctx->ps_iter_samples > 1) {
1407 key->part.ps.prolog.force_persp_sample_interp =
1408 sel->info.uses_persp_center ||
1409 sel->info.uses_persp_centroid;
1410
1411 key->part.ps.prolog.force_linear_sample_interp =
1412 sel->info.uses_linear_center ||
1413 sel->info.uses_linear_centroid;
1414 } else if (rs->multisample_enable &&
1415 sctx->framebuffer.nr_samples > 1) {
1416 key->part.ps.prolog.bc_optimize_for_persp =
1417 sel->info.uses_persp_center &&
1418 sel->info.uses_persp_centroid;
1419 key->part.ps.prolog.bc_optimize_for_linear =
1420 sel->info.uses_linear_center &&
1421 sel->info.uses_linear_centroid;
1422 } else {
1423 /* Make sure SPI doesn't compute more than 1 pair
1424 * of (i,j), which is the optimization here. */
1425 key->part.ps.prolog.force_persp_center_interp =
1426 sel->info.uses_persp_center +
1427 sel->info.uses_persp_centroid +
1428 sel->info.uses_persp_sample > 1;
1429
1430 key->part.ps.prolog.force_linear_center_interp =
1431 sel->info.uses_linear_center +
1432 sel->info.uses_linear_centroid +
1433 sel->info.uses_linear_sample > 1;
1434 }
1435 }
1436
1437 key->part.ps.epilog.alpha_func = si_get_alpha_test_func(sctx);
1438 break;
1439 }
1440 default:
1441 assert(0);
1442 }
1443
1444 if (unlikely(sctx->screen->b.debug_flags & DBG_NO_OPT_VARIANT))
1445 memset(&key->opt, 0, sizeof(key->opt));
1446 }
1447
1448 static void si_build_shader_variant(void *job, int thread_index)
1449 {
1450 struct si_shader *shader = (struct si_shader *)job;
1451 struct si_shader_selector *sel = shader->selector;
1452 struct si_screen *sscreen = sel->screen;
1453 LLVMTargetMachineRef tm;
1454 struct pipe_debug_callback *debug = &shader->compiler_ctx_state.debug;
1455 int r;
1456
1457 if (thread_index >= 0) {
1458 assert(thread_index < ARRAY_SIZE(sscreen->tm_low_priority));
1459 tm = sscreen->tm_low_priority[thread_index];
1460 if (!debug->async)
1461 debug = NULL;
1462 } else {
1463 tm = shader->compiler_ctx_state.tm;
1464 }
1465
1466 r = si_shader_create(sscreen, tm, shader, debug);
1467 if (unlikely(r)) {
1468 R600_ERR("Failed to build shader variant (type=%u) %d\n",
1469 sel->type, r);
1470 shader->compilation_failed = true;
1471 return;
1472 }
1473
1474 if (shader->compiler_ctx_state.is_debug_context) {
1475 FILE *f = open_memstream(&shader->shader_log,
1476 &shader->shader_log_size);
1477 if (f) {
1478 si_shader_dump(sscreen, shader, NULL, sel->type, f, false);
1479 fclose(f);
1480 }
1481 }
1482
1483 si_shader_init_pm4_state(sscreen, shader);
1484 }
1485
1486 static const struct si_shader_key zeroed;
1487
1488 static bool si_check_missing_main_part(struct si_screen *sscreen,
1489 struct si_shader_selector *sel,
1490 struct si_compiler_ctx_state *compiler_state,
1491 struct si_shader_key *key)
1492 {
1493 struct si_shader **mainp = si_get_main_shader_part(sel, key);
1494
1495 if (!*mainp) {
1496 struct si_shader *main_part = CALLOC_STRUCT(si_shader);
1497
1498 if (!main_part)
1499 return false;
1500
1501 main_part->selector = sel;
1502 main_part->key.as_es = key->as_es;
1503 main_part->key.as_ls = key->as_ls;
1504
1505 if (si_compile_tgsi_shader(sscreen, compiler_state->tm,
1506 main_part, false,
1507 &compiler_state->debug) != 0) {
1508 FREE(main_part);
1509 return false;
1510 }
1511 *mainp = main_part;
1512 }
1513 return true;
1514 }
1515
1516 static void si_destroy_shader_selector(struct si_context *sctx,
1517 struct si_shader_selector *sel);
1518
1519 static void si_shader_selector_reference(struct si_context *sctx,
1520 struct si_shader_selector **dst,
1521 struct si_shader_selector *src)
1522 {
1523 if (pipe_reference(&(*dst)->reference, &src->reference))
1524 si_destroy_shader_selector(sctx, *dst);
1525
1526 *dst = src;
1527 }
1528
1529 /* Select the hw shader variant depending on the current state. */
1530 static int si_shader_select_with_key(struct si_screen *sscreen,
1531 struct si_shader_ctx_state *state,
1532 struct si_compiler_ctx_state *compiler_state,
1533 struct si_shader_key *key,
1534 int thread_index)
1535 {
1536 struct si_shader_selector *sel = state->cso;
1537 struct si_shader_selector *previous_stage_sel = NULL;
1538 struct si_shader *current = state->current;
1539 struct si_shader *iter, *shader = NULL;
1540
1541 again:
1542 /* Check if we don't need to change anything.
1543 * This path is also used for most shaders that don't need multiple
1544 * variants, it will cost just a computation of the key and this
1545 * test. */
1546 if (likely(current &&
1547 memcmp(&current->key, key, sizeof(*key)) == 0 &&
1548 (!current->is_optimized ||
1549 util_queue_fence_is_signalled(&current->optimized_ready))))
1550 return current->compilation_failed ? -1 : 0;
1551
1552 /* This must be done before the mutex is locked, because async GS
1553 * compilation calls this function too, and therefore must enter
1554 * the mutex first.
1555 *
1556 * Only wait if we are in a draw call. Don't wait if we are
1557 * in a compiler thread.
1558 */
1559 if (thread_index < 0)
1560 util_queue_fence_wait(&sel->ready);
1561
1562 mtx_lock(&sel->mutex);
1563
1564 /* Find the shader variant. */
1565 for (iter = sel->first_variant; iter; iter = iter->next_variant) {
1566 /* Don't check the "current" shader. We checked it above. */
1567 if (current != iter &&
1568 memcmp(&iter->key, key, sizeof(*key)) == 0) {
1569 /* If it's an optimized shader and its compilation has
1570 * been started but isn't done, use the unoptimized
1571 * shader so as not to cause a stall due to compilation.
1572 */
1573 if (iter->is_optimized &&
1574 !util_queue_fence_is_signalled(&iter->optimized_ready)) {
1575 memset(&key->opt, 0, sizeof(key->opt));
1576 mtx_unlock(&sel->mutex);
1577 goto again;
1578 }
1579
1580 if (iter->compilation_failed) {
1581 mtx_unlock(&sel->mutex);
1582 return -1; /* skip the draw call */
1583 }
1584
1585 state->current = iter;
1586 mtx_unlock(&sel->mutex);
1587 return 0;
1588 }
1589 }
1590
1591 /* Build a new shader. */
1592 shader = CALLOC_STRUCT(si_shader);
1593 if (!shader) {
1594 mtx_unlock(&sel->mutex);
1595 return -ENOMEM;
1596 }
1597 shader->selector = sel;
1598 shader->key = *key;
1599 shader->compiler_ctx_state = *compiler_state;
1600
1601 /* If this is a merged shader, get the first shader's selector. */
1602 if (sscreen->b.chip_class >= GFX9) {
1603 if (sel->type == PIPE_SHADER_TESS_CTRL)
1604 previous_stage_sel = key->part.tcs.ls;
1605 else if (sel->type == PIPE_SHADER_GEOMETRY)
1606 previous_stage_sel = key->part.gs.es;
1607
1608 /* We need to wait for the previous shader. */
1609 if (previous_stage_sel && thread_index < 0)
1610 util_queue_fence_wait(&previous_stage_sel->ready);
1611 }
1612
1613 /* Compile the main shader part if it doesn't exist. This can happen
1614 * if the initial guess was wrong. */
1615 bool is_pure_monolithic =
1616 sscreen->use_monolithic_shaders ||
1617 memcmp(&key->mono, &zeroed.mono, sizeof(key->mono)) != 0;
1618
1619 if (!is_pure_monolithic) {
1620 bool ok;
1621
1622 /* Make sure the main shader part is present. This is needed
1623 * for shaders that can be compiled as VS, LS, or ES, and only
1624 * one of them is compiled at creation.
1625 *
1626 * For merged shaders, check that the starting shader's main
1627 * part is present.
1628 */
1629 if (previous_stage_sel) {
1630 struct si_shader_key shader1_key = zeroed;
1631
1632 if (sel->type == PIPE_SHADER_TESS_CTRL)
1633 shader1_key.as_ls = 1;
1634 else if (sel->type == PIPE_SHADER_GEOMETRY)
1635 shader1_key.as_es = 1;
1636 else
1637 assert(0);
1638
1639 mtx_lock(&previous_stage_sel->mutex);
1640 ok = si_check_missing_main_part(sscreen,
1641 previous_stage_sel,
1642 compiler_state, &shader1_key);
1643 mtx_unlock(&previous_stage_sel->mutex);
1644 } else {
1645 ok = si_check_missing_main_part(sscreen, sel,
1646 compiler_state, key);
1647 }
1648 if (!ok) {
1649 FREE(shader);
1650 mtx_unlock(&sel->mutex);
1651 return -ENOMEM; /* skip the draw call */
1652 }
1653 }
1654
1655 /* Keep the reference to the 1st shader of merged shaders, so that
1656 * Gallium can't destroy it before we destroy the 2nd shader.
1657 *
1658 * Set sctx = NULL, because it's unused if we're not releasing
1659 * the shader, and we don't have any sctx here.
1660 */
1661 si_shader_selector_reference(NULL, &shader->previous_stage_sel,
1662 previous_stage_sel);
1663
1664 /* Monolithic-only shaders don't make a distinction between optimized
1665 * and unoptimized. */
1666 shader->is_monolithic =
1667 is_pure_monolithic ||
1668 memcmp(&key->opt, &zeroed.opt, sizeof(key->opt)) != 0;
1669
1670 shader->is_optimized =
1671 !is_pure_monolithic &&
1672 memcmp(&key->opt, &zeroed.opt, sizeof(key->opt)) != 0;
1673 if (shader->is_optimized)
1674 util_queue_fence_init(&shader->optimized_ready);
1675
1676 if (!sel->last_variant) {
1677 sel->first_variant = shader;
1678 sel->last_variant = shader;
1679 } else {
1680 sel->last_variant->next_variant = shader;
1681 sel->last_variant = shader;
1682 }
1683
1684 /* If it's an optimized shader, compile it asynchronously. */
1685 if (shader->is_optimized &&
1686 !is_pure_monolithic &&
1687 thread_index < 0) {
1688 /* Compile it asynchronously. */
1689 util_queue_add_job(&sscreen->shader_compiler_queue_low_priority,
1690 shader, &shader->optimized_ready,
1691 si_build_shader_variant, NULL);
1692
1693 /* Use the default (unoptimized) shader for now. */
1694 memset(&key->opt, 0, sizeof(key->opt));
1695 mtx_unlock(&sel->mutex);
1696 goto again;
1697 }
1698
1699 assert(!shader->is_optimized);
1700 si_build_shader_variant(shader, thread_index);
1701
1702 if (!shader->compilation_failed)
1703 state->current = shader;
1704
1705 mtx_unlock(&sel->mutex);
1706 return shader->compilation_failed ? -1 : 0;
1707 }
1708
1709 static int si_shader_select(struct pipe_context *ctx,
1710 struct si_shader_ctx_state *state,
1711 struct si_compiler_ctx_state *compiler_state)
1712 {
1713 struct si_context *sctx = (struct si_context *)ctx;
1714 struct si_shader_key key;
1715
1716 si_shader_selector_key(ctx, state->cso, &key);
1717 return si_shader_select_with_key(sctx->screen, state, compiler_state,
1718 &key, -1);
1719 }
1720
1721 static void si_parse_next_shader_property(const struct tgsi_shader_info *info,
1722 struct si_shader_key *key)
1723 {
1724 unsigned next_shader = info->properties[TGSI_PROPERTY_NEXT_SHADER];
1725
1726 switch (info->processor) {
1727 case PIPE_SHADER_VERTEX:
1728 switch (next_shader) {
1729 case PIPE_SHADER_GEOMETRY:
1730 key->as_es = 1;
1731 break;
1732 case PIPE_SHADER_TESS_CTRL:
1733 case PIPE_SHADER_TESS_EVAL:
1734 key->as_ls = 1;
1735 break;
1736 default:
1737 /* If POSITION isn't written, it can't be a HW VS.
1738 * Assume that it's a HW LS. (the next shader is TCS)
1739 * This heuristic is needed for separate shader objects.
1740 */
1741 if (!info->writes_position)
1742 key->as_ls = 1;
1743 }
1744 break;
1745
1746 case PIPE_SHADER_TESS_EVAL:
1747 if (next_shader == PIPE_SHADER_GEOMETRY ||
1748 !info->writes_position)
1749 key->as_es = 1;
1750 break;
1751 }
1752 }
1753
1754 /**
1755 * Compile the main shader part or the monolithic shader as part of
1756 * si_shader_selector initialization. Since it can be done asynchronously,
1757 * there is no way to report compile failures to applications.
1758 */
1759 void si_init_shader_selector_async(void *job, int thread_index)
1760 {
1761 struct si_shader_selector *sel = (struct si_shader_selector *)job;
1762 struct si_screen *sscreen = sel->screen;
1763 LLVMTargetMachineRef tm;
1764 struct pipe_debug_callback *debug = &sel->compiler_ctx_state.debug;
1765 unsigned i;
1766
1767 if (thread_index >= 0) {
1768 assert(thread_index < ARRAY_SIZE(sscreen->tm));
1769 tm = sscreen->tm[thread_index];
1770 if (!debug->async)
1771 debug = NULL;
1772 } else {
1773 tm = sel->compiler_ctx_state.tm;
1774 }
1775
1776 /* Compile the main shader part for use with a prolog and/or epilog.
1777 * If this fails, the driver will try to compile a monolithic shader
1778 * on demand.
1779 */
1780 if (!sscreen->use_monolithic_shaders) {
1781 struct si_shader *shader = CALLOC_STRUCT(si_shader);
1782 void *tgsi_binary;
1783
1784 if (!shader) {
1785 fprintf(stderr, "radeonsi: can't allocate a main shader part\n");
1786 return;
1787 }
1788
1789 shader->selector = sel;
1790 si_parse_next_shader_property(&sel->info, &shader->key);
1791
1792 tgsi_binary = si_get_tgsi_binary(sel);
1793
1794 /* Try to load the shader from the shader cache. */
1795 mtx_lock(&sscreen->shader_cache_mutex);
1796
1797 if (tgsi_binary &&
1798 si_shader_cache_load_shader(sscreen, tgsi_binary, shader)) {
1799 mtx_unlock(&sscreen->shader_cache_mutex);
1800 } else {
1801 mtx_unlock(&sscreen->shader_cache_mutex);
1802
1803 /* Compile the shader if it hasn't been loaded from the cache. */
1804 if (si_compile_tgsi_shader(sscreen, tm, shader, false,
1805 debug) != 0) {
1806 FREE(shader);
1807 FREE(tgsi_binary);
1808 fprintf(stderr, "radeonsi: can't compile a main shader part\n");
1809 return;
1810 }
1811
1812 if (tgsi_binary) {
1813 mtx_lock(&sscreen->shader_cache_mutex);
1814 if (!si_shader_cache_insert_shader(sscreen, tgsi_binary, shader, true))
1815 FREE(tgsi_binary);
1816 mtx_unlock(&sscreen->shader_cache_mutex);
1817 }
1818 }
1819
1820 *si_get_main_shader_part(sel, &shader->key) = shader;
1821
1822 /* Unset "outputs_written" flags for outputs converted to
1823 * DEFAULT_VAL, so that later inter-shader optimizations don't
1824 * try to eliminate outputs that don't exist in the final
1825 * shader.
1826 *
1827 * This is only done if non-monolithic shaders are enabled.
1828 */
1829 if ((sel->type == PIPE_SHADER_VERTEX ||
1830 sel->type == PIPE_SHADER_TESS_EVAL) &&
1831 !shader->key.as_ls &&
1832 !shader->key.as_es) {
1833 unsigned i;
1834
1835 for (i = 0; i < sel->info.num_outputs; i++) {
1836 unsigned offset = shader->info.vs_output_param_offset[i];
1837
1838 if (offset <= AC_EXP_PARAM_OFFSET_31)
1839 continue;
1840
1841 unsigned name = sel->info.output_semantic_name[i];
1842 unsigned index = sel->info.output_semantic_index[i];
1843 unsigned id;
1844
1845 switch (name) {
1846 case TGSI_SEMANTIC_GENERIC:
1847 /* don't process indices the function can't handle */
1848 if (index >= SI_MAX_IO_GENERIC)
1849 break;
1850 /* fall through */
1851 default:
1852 id = si_shader_io_get_unique_index(name, index);
1853 sel->outputs_written &= ~(1ull << id);
1854 break;
1855 case TGSI_SEMANTIC_POSITION: /* ignore these */
1856 case TGSI_SEMANTIC_PSIZE:
1857 case TGSI_SEMANTIC_CLIPVERTEX:
1858 case TGSI_SEMANTIC_EDGEFLAG:
1859 break;
1860 }
1861 }
1862 }
1863 }
1864
1865 /* Pre-compilation. */
1866 if (sscreen->b.debug_flags & DBG_PRECOMPILE) {
1867 struct si_shader_ctx_state state = {sel};
1868 struct si_shader_key key;
1869
1870 memset(&key, 0, sizeof(key));
1871 si_parse_next_shader_property(&sel->info, &key);
1872
1873 /* Set reasonable defaults, so that the shader key doesn't
1874 * cause any code to be eliminated.
1875 */
1876 switch (sel->type) {
1877 case PIPE_SHADER_TESS_CTRL:
1878 key.part.tcs.epilog.prim_mode = PIPE_PRIM_TRIANGLES;
1879 break;
1880 case PIPE_SHADER_FRAGMENT:
1881 key.part.ps.prolog.bc_optimize_for_persp =
1882 sel->info.uses_persp_center &&
1883 sel->info.uses_persp_centroid;
1884 key.part.ps.prolog.bc_optimize_for_linear =
1885 sel->info.uses_linear_center &&
1886 sel->info.uses_linear_centroid;
1887 key.part.ps.epilog.alpha_func = PIPE_FUNC_ALWAYS;
1888 for (i = 0; i < 8; i++)
1889 if (sel->info.colors_written & (1 << i))
1890 key.part.ps.epilog.spi_shader_col_format |=
1891 V_028710_SPI_SHADER_FP16_ABGR << (i * 4);
1892 break;
1893 }
1894
1895 if (si_shader_select_with_key(sscreen, &state,
1896 &sel->compiler_ctx_state, &key,
1897 thread_index))
1898 fprintf(stderr, "radeonsi: can't create a monolithic shader\n");
1899 }
1900
1901 /* The GS copy shader is always pre-compiled. */
1902 if (sel->type == PIPE_SHADER_GEOMETRY) {
1903 sel->gs_copy_shader = si_generate_gs_copy_shader(sscreen, tm, sel, debug);
1904 if (!sel->gs_copy_shader) {
1905 fprintf(stderr, "radeonsi: can't create GS copy shader\n");
1906 return;
1907 }
1908
1909 si_shader_vs(sscreen, sel->gs_copy_shader, sel);
1910 }
1911 }
1912
1913 /* Return descriptor slot usage masks from the given shader info. */
1914 void si_get_active_slot_masks(const struct tgsi_shader_info *info,
1915 uint32_t *const_and_shader_buffers,
1916 uint64_t *samplers_and_images)
1917 {
1918 unsigned start, num_shaderbufs, num_constbufs, num_images, num_samplers;
1919
1920 num_shaderbufs = util_last_bit(info->shader_buffers_declared);
1921 num_constbufs = util_last_bit(info->const_buffers_declared);
1922 /* two 8-byte images share one 16-byte slot */
1923 num_images = align(util_last_bit(info->images_declared), 2);
1924 num_samplers = util_last_bit(info->samplers_declared);
1925
1926 /* The layout is: sb[last] ... sb[0], cb[0] ... cb[last] */
1927 start = si_get_shaderbuf_slot(num_shaderbufs - 1);
1928 *const_and_shader_buffers =
1929 u_bit_consecutive(start, num_shaderbufs + num_constbufs);
1930
1931 /* The layout is: image[last] ... image[0], sampler[0] ... sampler[last] */
1932 start = si_get_image_slot(num_images - 1) / 2;
1933 *samplers_and_images =
1934 u_bit_consecutive64(start, num_images / 2 + num_samplers);
1935 }
1936
1937 static void *si_create_shader_selector(struct pipe_context *ctx,
1938 const struct pipe_shader_state *state)
1939 {
1940 struct si_screen *sscreen = (struct si_screen *)ctx->screen;
1941 struct si_context *sctx = (struct si_context*)ctx;
1942 struct si_shader_selector *sel = CALLOC_STRUCT(si_shader_selector);
1943 int i;
1944
1945 if (!sel)
1946 return NULL;
1947
1948 pipe_reference_init(&sel->reference, 1);
1949 sel->screen = sscreen;
1950 sel->compiler_ctx_state.tm = sctx->tm;
1951 sel->compiler_ctx_state.debug = sctx->b.debug;
1952 sel->compiler_ctx_state.is_debug_context = sctx->is_debug;
1953 sel->tokens = tgsi_dup_tokens(state->tokens);
1954 if (!sel->tokens) {
1955 FREE(sel);
1956 return NULL;
1957 }
1958
1959 sel->so = state->stream_output;
1960 tgsi_scan_shader(state->tokens, &sel->info);
1961 sel->type = sel->info.processor;
1962 p_atomic_inc(&sscreen->b.num_shaders_created);
1963 si_get_active_slot_masks(&sel->info,
1964 &sel->active_const_and_shader_buffers,
1965 &sel->active_samplers_and_images);
1966
1967 /* Record which streamout buffers are enabled. */
1968 for (i = 0; i < sel->so.num_outputs; i++) {
1969 sel->enabled_streamout_buffer_mask |=
1970 (1 << sel->so.output[i].output_buffer) <<
1971 (sel->so.output[i].stream * 4);
1972 }
1973
1974 /* The prolog is a no-op if there are no inputs. */
1975 sel->vs_needs_prolog = sel->type == PIPE_SHADER_VERTEX &&
1976 sel->info.num_inputs;
1977
1978 /* Set which opcode uses which (i,j) pair. */
1979 if (sel->info.uses_persp_opcode_interp_centroid)
1980 sel->info.uses_persp_centroid = true;
1981
1982 if (sel->info.uses_linear_opcode_interp_centroid)
1983 sel->info.uses_linear_centroid = true;
1984
1985 if (sel->info.uses_persp_opcode_interp_offset ||
1986 sel->info.uses_persp_opcode_interp_sample)
1987 sel->info.uses_persp_center = true;
1988
1989 if (sel->info.uses_linear_opcode_interp_offset ||
1990 sel->info.uses_linear_opcode_interp_sample)
1991 sel->info.uses_linear_center = true;
1992
1993 switch (sel->type) {
1994 case PIPE_SHADER_GEOMETRY:
1995 sel->gs_output_prim =
1996 sel->info.properties[TGSI_PROPERTY_GS_OUTPUT_PRIM];
1997 sel->gs_max_out_vertices =
1998 sel->info.properties[TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES];
1999 sel->gs_num_invocations =
2000 sel->info.properties[TGSI_PROPERTY_GS_INVOCATIONS];
2001 sel->gsvs_vertex_size = sel->info.num_outputs * 16;
2002 sel->max_gsvs_emit_size = sel->gsvs_vertex_size *
2003 sel->gs_max_out_vertices;
2004
2005 sel->max_gs_stream = 0;
2006 for (i = 0; i < sel->so.num_outputs; i++)
2007 sel->max_gs_stream = MAX2(sel->max_gs_stream,
2008 sel->so.output[i].stream);
2009
2010 sel->gs_input_verts_per_prim =
2011 u_vertices_per_prim(sel->info.properties[TGSI_PROPERTY_GS_INPUT_PRIM]);
2012 break;
2013
2014 case PIPE_SHADER_TESS_CTRL:
2015 /* Always reserve space for these. */
2016 sel->patch_outputs_written |=
2017 (1llu << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSINNER, 0)) |
2018 (1llu << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSOUTER, 0));
2019 /* fall through */
2020 case PIPE_SHADER_VERTEX:
2021 case PIPE_SHADER_TESS_EVAL:
2022 for (i = 0; i < sel->info.num_outputs; i++) {
2023 unsigned name = sel->info.output_semantic_name[i];
2024 unsigned index = sel->info.output_semantic_index[i];
2025
2026 switch (name) {
2027 case TGSI_SEMANTIC_TESSINNER:
2028 case TGSI_SEMANTIC_TESSOUTER:
2029 case TGSI_SEMANTIC_PATCH:
2030 sel->patch_outputs_written |=
2031 1llu << si_shader_io_get_unique_index_patch(name, index);
2032 break;
2033
2034 case TGSI_SEMANTIC_GENERIC:
2035 /* don't process indices the function can't handle */
2036 if (index >= SI_MAX_IO_GENERIC)
2037 break;
2038 /* fall through */
2039 default:
2040 sel->outputs_written |=
2041 1llu << si_shader_io_get_unique_index(name, index);
2042 break;
2043 case TGSI_SEMANTIC_CLIPVERTEX: /* ignore these */
2044 case TGSI_SEMANTIC_EDGEFLAG:
2045 break;
2046 }
2047 }
2048 sel->esgs_itemsize = util_last_bit64(sel->outputs_written) * 16;
2049
2050 /* For the ESGS ring in LDS, add 1 dword to reduce LDS bank
2051 * conflicts, i.e. each vertex will start at a different bank.
2052 */
2053 if (sctx->b.chip_class >= GFX9)
2054 sel->esgs_itemsize += 4;
2055 break;
2056
2057 case PIPE_SHADER_FRAGMENT:
2058 for (i = 0; i < sel->info.num_inputs; i++) {
2059 unsigned name = sel->info.input_semantic_name[i];
2060 unsigned index = sel->info.input_semantic_index[i];
2061
2062 switch (name) {
2063 case TGSI_SEMANTIC_GENERIC:
2064 /* don't process indices the function can't handle */
2065 if (index >= SI_MAX_IO_GENERIC)
2066 break;
2067 /* fall through */
2068 default:
2069 sel->inputs_read |=
2070 1llu << si_shader_io_get_unique_index(name, index);
2071 break;
2072 case TGSI_SEMANTIC_PCOORD: /* ignore this */
2073 break;
2074 }
2075 }
2076
2077 for (i = 0; i < 8; i++)
2078 if (sel->info.colors_written & (1 << i))
2079 sel->colors_written_4bit |= 0xf << (4 * i);
2080
2081 for (i = 0; i < sel->info.num_inputs; i++) {
2082 if (sel->info.input_semantic_name[i] == TGSI_SEMANTIC_COLOR) {
2083 int index = sel->info.input_semantic_index[i];
2084 sel->color_attr_index[index] = i;
2085 }
2086 }
2087 break;
2088 }
2089
2090 /* PA_CL_VS_OUT_CNTL */
2091 bool misc_vec_ena =
2092 sel->info.writes_psize || sel->info.writes_edgeflag ||
2093 sel->info.writes_layer || sel->info.writes_viewport_index;
2094 sel->pa_cl_vs_out_cntl =
2095 S_02881C_USE_VTX_POINT_SIZE(sel->info.writes_psize) |
2096 S_02881C_USE_VTX_EDGE_FLAG(sel->info.writes_edgeflag) |
2097 S_02881C_USE_VTX_RENDER_TARGET_INDX(sel->info.writes_layer) |
2098 S_02881C_USE_VTX_VIEWPORT_INDX(sel->info.writes_viewport_index) |
2099 S_02881C_VS_OUT_MISC_VEC_ENA(misc_vec_ena) |
2100 S_02881C_VS_OUT_MISC_SIDE_BUS_ENA(misc_vec_ena);
2101 sel->clipdist_mask = sel->info.writes_clipvertex ?
2102 SIX_BITS : sel->info.clipdist_writemask;
2103 sel->culldist_mask = sel->info.culldist_writemask <<
2104 sel->info.num_written_clipdistance;
2105
2106 /* DB_SHADER_CONTROL */
2107 sel->db_shader_control =
2108 S_02880C_Z_EXPORT_ENABLE(sel->info.writes_z) |
2109 S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(sel->info.writes_stencil) |
2110 S_02880C_MASK_EXPORT_ENABLE(sel->info.writes_samplemask) |
2111 S_02880C_KILL_ENABLE(sel->info.uses_kill);
2112
2113 switch (sel->info.properties[TGSI_PROPERTY_FS_DEPTH_LAYOUT]) {
2114 case TGSI_FS_DEPTH_LAYOUT_GREATER:
2115 sel->db_shader_control |=
2116 S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_GREATER_THAN_Z);
2117 break;
2118 case TGSI_FS_DEPTH_LAYOUT_LESS:
2119 sel->db_shader_control |=
2120 S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_LESS_THAN_Z);
2121 break;
2122 }
2123
2124 /* Z_ORDER, EXEC_ON_HIER_FAIL and EXEC_ON_NOOP should be set as following:
2125 *
2126 * | early Z/S | writes_mem | allow_ReZ? | Z_ORDER | EXEC_ON_HIER_FAIL | EXEC_ON_NOOP
2127 * --|-----------|------------|------------|--------------------|-------------------|-------------
2128 * 1a| false | false | true | EarlyZ_Then_ReZ | 0 | 0
2129 * 1b| false | false | false | EarlyZ_Then_LateZ | 0 | 0
2130 * 2 | false | true | n/a | LateZ | 1 | 0
2131 * 3 | true | false | n/a | EarlyZ_Then_LateZ | 0 | 0
2132 * 4 | true | true | n/a | EarlyZ_Then_LateZ | 0 | 1
2133 *
2134 * In cases 3 and 4, HW will force Z_ORDER to EarlyZ regardless of what's set in the register.
2135 * In case 2, NOOP_CULL is a don't care field. In case 2, 3 and 4, ReZ doesn't make sense.
2136 *
2137 * Don't use ReZ without profiling !!!
2138 *
2139 * ReZ decreases performance by 15% in DiRT: Showdown on Ultra settings, which has pretty complex
2140 * shaders.
2141 */
2142 if (sel->info.properties[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL]) {
2143 /* Cases 3, 4. */
2144 sel->db_shader_control |= S_02880C_DEPTH_BEFORE_SHADER(1) |
2145 S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z) |
2146 S_02880C_EXEC_ON_NOOP(sel->info.writes_memory);
2147 } else if (sel->info.writes_memory) {
2148 /* Case 2. */
2149 sel->db_shader_control |= S_02880C_Z_ORDER(V_02880C_LATE_Z) |
2150 S_02880C_EXEC_ON_HIER_FAIL(1);
2151 } else {
2152 /* Case 1. */
2153 sel->db_shader_control |= S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z);
2154 }
2155
2156 (void) mtx_init(&sel->mutex, mtx_plain);
2157 util_queue_fence_init(&sel->ready);
2158
2159 if ((sctx->b.debug.debug_message && !sctx->b.debug.async) ||
2160 sctx->is_debug ||
2161 r600_can_dump_shader(&sscreen->b, sel->info.processor))
2162 si_init_shader_selector_async(sel, -1);
2163 else
2164 util_queue_add_job(&sscreen->shader_compiler_queue, sel,
2165 &sel->ready, si_init_shader_selector_async,
2166 NULL);
2167
2168 return sel;
2169 }
2170
2171 static void si_update_streamout_state(struct si_context *sctx)
2172 {
2173 struct si_shader_selector *shader_with_so = si_get_vs(sctx)->cso;
2174
2175 if (!shader_with_so)
2176 return;
2177
2178 sctx->b.streamout.enabled_stream_buffers_mask =
2179 shader_with_so->enabled_streamout_buffer_mask;
2180 sctx->b.streamout.stride_in_dw = shader_with_so->so.stride;
2181 }
2182
2183 static void si_update_clip_regs(struct si_context *sctx,
2184 struct si_shader_selector *old_hw_vs,
2185 struct si_shader *old_hw_vs_variant,
2186 struct si_shader_selector *next_hw_vs,
2187 struct si_shader *next_hw_vs_variant)
2188 {
2189 if (next_hw_vs &&
2190 (!old_hw_vs ||
2191 old_hw_vs->info.properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION] !=
2192 next_hw_vs->info.properties[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION] ||
2193 old_hw_vs->pa_cl_vs_out_cntl != next_hw_vs->pa_cl_vs_out_cntl ||
2194 old_hw_vs->clipdist_mask != next_hw_vs->clipdist_mask ||
2195 old_hw_vs->culldist_mask != next_hw_vs->culldist_mask ||
2196 !old_hw_vs_variant ||
2197 !next_hw_vs_variant ||
2198 old_hw_vs_variant->key.opt.hw_vs.clip_disable !=
2199 next_hw_vs_variant->key.opt.hw_vs.clip_disable))
2200 si_mark_atom_dirty(sctx, &sctx->clip_regs);
2201 }
2202
2203 static void si_bind_vs_shader(struct pipe_context *ctx, void *state)
2204 {
2205 struct si_context *sctx = (struct si_context *)ctx;
2206 struct si_shader_selector *old_hw_vs = si_get_vs(sctx)->cso;
2207 struct si_shader *old_hw_vs_variant = si_get_vs_state(sctx);
2208 struct si_shader_selector *sel = state;
2209
2210 if (sctx->vs_shader.cso == sel)
2211 return;
2212
2213 sctx->vs_shader.cso = sel;
2214 sctx->vs_shader.current = sel ? sel->first_variant : NULL;
2215 sctx->do_update_shaders = true;
2216 r600_update_vs_writes_viewport_index(&sctx->b, si_get_vs_info(sctx));
2217 si_set_active_descriptors_for_shader(sctx, sel);
2218 si_update_streamout_state(sctx);
2219 si_update_clip_regs(sctx, old_hw_vs, old_hw_vs_variant,
2220 si_get_vs(sctx)->cso, si_get_vs_state(sctx));
2221 }
2222
2223 static void si_update_tess_uses_prim_id(struct si_context *sctx)
2224 {
2225 sctx->ia_multi_vgt_param_key.u.tess_uses_prim_id =
2226 (sctx->tes_shader.cso &&
2227 sctx->tes_shader.cso->info.uses_primid) ||
2228 (sctx->tcs_shader.cso &&
2229 sctx->tcs_shader.cso->info.uses_primid) ||
2230 (sctx->gs_shader.cso &&
2231 sctx->gs_shader.cso->info.uses_primid) ||
2232 (sctx->ps_shader.cso && !sctx->gs_shader.cso &&
2233 sctx->ps_shader.cso->info.uses_primid);
2234 }
2235
2236 static void si_bind_gs_shader(struct pipe_context *ctx, void *state)
2237 {
2238 struct si_context *sctx = (struct si_context *)ctx;
2239 struct si_shader_selector *old_hw_vs = si_get_vs(sctx)->cso;
2240 struct si_shader *old_hw_vs_variant = si_get_vs_state(sctx);
2241 struct si_shader_selector *sel = state;
2242 bool enable_changed = !!sctx->gs_shader.cso != !!sel;
2243
2244 if (sctx->gs_shader.cso == sel)
2245 return;
2246
2247 sctx->gs_shader.cso = sel;
2248 sctx->gs_shader.current = sel ? sel->first_variant : NULL;
2249 sctx->ia_multi_vgt_param_key.u.uses_gs = sel != NULL;
2250 sctx->do_update_shaders = true;
2251 sctx->last_rast_prim = -1; /* reset this so that it gets updated */
2252
2253 if (enable_changed) {
2254 si_shader_change_notify(sctx);
2255 if (sctx->ia_multi_vgt_param_key.u.uses_tess)
2256 si_update_tess_uses_prim_id(sctx);
2257 }
2258 r600_update_vs_writes_viewport_index(&sctx->b, si_get_vs_info(sctx));
2259 si_set_active_descriptors_for_shader(sctx, sel);
2260 si_update_streamout_state(sctx);
2261 si_update_clip_regs(sctx, old_hw_vs, old_hw_vs_variant,
2262 si_get_vs(sctx)->cso, si_get_vs_state(sctx));
2263 }
2264
2265 static void si_bind_tcs_shader(struct pipe_context *ctx, void *state)
2266 {
2267 struct si_context *sctx = (struct si_context *)ctx;
2268 struct si_shader_selector *sel = state;
2269 bool enable_changed = !!sctx->tcs_shader.cso != !!sel;
2270
2271 if (sctx->tcs_shader.cso == sel)
2272 return;
2273
2274 sctx->tcs_shader.cso = sel;
2275 sctx->tcs_shader.current = sel ? sel->first_variant : NULL;
2276 si_update_tess_uses_prim_id(sctx);
2277 sctx->do_update_shaders = true;
2278
2279 if (enable_changed)
2280 sctx->last_tcs = NULL; /* invalidate derived tess state */
2281
2282 si_set_active_descriptors_for_shader(sctx, sel);
2283 }
2284
2285 static void si_bind_tes_shader(struct pipe_context *ctx, void *state)
2286 {
2287 struct si_context *sctx = (struct si_context *)ctx;
2288 struct si_shader_selector *old_hw_vs = si_get_vs(sctx)->cso;
2289 struct si_shader *old_hw_vs_variant = si_get_vs_state(sctx);
2290 struct si_shader_selector *sel = state;
2291 bool enable_changed = !!sctx->tes_shader.cso != !!sel;
2292
2293 if (sctx->tes_shader.cso == sel)
2294 return;
2295
2296 sctx->tes_shader.cso = sel;
2297 sctx->tes_shader.current = sel ? sel->first_variant : NULL;
2298 sctx->ia_multi_vgt_param_key.u.uses_tess = sel != NULL;
2299 si_update_tess_uses_prim_id(sctx);
2300 sctx->do_update_shaders = true;
2301 sctx->last_rast_prim = -1; /* reset this so that it gets updated */
2302
2303 if (enable_changed) {
2304 si_shader_change_notify(sctx);
2305 sctx->last_tes_sh_base = -1; /* invalidate derived tess state */
2306 }
2307 r600_update_vs_writes_viewport_index(&sctx->b, si_get_vs_info(sctx));
2308 si_set_active_descriptors_for_shader(sctx, sel);
2309 si_update_streamout_state(sctx);
2310 si_update_clip_regs(sctx, old_hw_vs, old_hw_vs_variant,
2311 si_get_vs(sctx)->cso, si_get_vs_state(sctx));
2312 }
2313
2314 static void si_bind_ps_shader(struct pipe_context *ctx, void *state)
2315 {
2316 struct si_context *sctx = (struct si_context *)ctx;
2317 struct si_shader_selector *old_sel = sctx->ps_shader.cso;
2318 struct si_shader_selector *sel = state;
2319
2320 /* skip if supplied shader is one already in use */
2321 if (old_sel == sel)
2322 return;
2323
2324 sctx->ps_shader.cso = sel;
2325 sctx->ps_shader.current = sel ? sel->first_variant : NULL;
2326 sctx->do_update_shaders = true;
2327
2328 if (sel) {
2329 if (sctx->ia_multi_vgt_param_key.u.uses_tess)
2330 si_update_tess_uses_prim_id(sctx);
2331
2332 if (!old_sel ||
2333 old_sel->info.colors_written != sel->info.colors_written)
2334 si_mark_atom_dirty(sctx, &sctx->cb_render_state);
2335 }
2336 si_set_active_descriptors_for_shader(sctx, sel);
2337 }
2338
2339 static void si_delete_shader(struct si_context *sctx, struct si_shader *shader)
2340 {
2341 if (shader->is_optimized) {
2342 util_queue_drop_job(&sctx->screen->shader_compiler_queue_low_priority,
2343 &shader->optimized_ready);
2344 util_queue_fence_destroy(&shader->optimized_ready);
2345 }
2346
2347 if (shader->pm4) {
2348 switch (shader->selector->type) {
2349 case PIPE_SHADER_VERTEX:
2350 if (shader->key.as_ls) {
2351 assert(sctx->b.chip_class <= VI);
2352 si_pm4_delete_state(sctx, ls, shader->pm4);
2353 } else if (shader->key.as_es) {
2354 assert(sctx->b.chip_class <= VI);
2355 si_pm4_delete_state(sctx, es, shader->pm4);
2356 } else {
2357 si_pm4_delete_state(sctx, vs, shader->pm4);
2358 }
2359 break;
2360 case PIPE_SHADER_TESS_CTRL:
2361 si_pm4_delete_state(sctx, hs, shader->pm4);
2362 break;
2363 case PIPE_SHADER_TESS_EVAL:
2364 if (shader->key.as_es) {
2365 assert(sctx->b.chip_class <= VI);
2366 si_pm4_delete_state(sctx, es, shader->pm4);
2367 } else {
2368 si_pm4_delete_state(sctx, vs, shader->pm4);
2369 }
2370 break;
2371 case PIPE_SHADER_GEOMETRY:
2372 if (shader->is_gs_copy_shader)
2373 si_pm4_delete_state(sctx, vs, shader->pm4);
2374 else
2375 si_pm4_delete_state(sctx, gs, shader->pm4);
2376 break;
2377 case PIPE_SHADER_FRAGMENT:
2378 si_pm4_delete_state(sctx, ps, shader->pm4);
2379 break;
2380 }
2381 }
2382
2383 si_shader_selector_reference(sctx, &shader->previous_stage_sel, NULL);
2384 si_shader_destroy(shader);
2385 free(shader);
2386 }
2387
2388 static void si_destroy_shader_selector(struct si_context *sctx,
2389 struct si_shader_selector *sel)
2390 {
2391 struct si_shader *p = sel->first_variant, *c;
2392 struct si_shader_ctx_state *current_shader[SI_NUM_SHADERS] = {
2393 [PIPE_SHADER_VERTEX] = &sctx->vs_shader,
2394 [PIPE_SHADER_TESS_CTRL] = &sctx->tcs_shader,
2395 [PIPE_SHADER_TESS_EVAL] = &sctx->tes_shader,
2396 [PIPE_SHADER_GEOMETRY] = &sctx->gs_shader,
2397 [PIPE_SHADER_FRAGMENT] = &sctx->ps_shader,
2398 };
2399
2400 util_queue_drop_job(&sctx->screen->shader_compiler_queue, &sel->ready);
2401
2402 if (current_shader[sel->type]->cso == sel) {
2403 current_shader[sel->type]->cso = NULL;
2404 current_shader[sel->type]->current = NULL;
2405 }
2406
2407 while (p) {
2408 c = p->next_variant;
2409 si_delete_shader(sctx, p);
2410 p = c;
2411 }
2412
2413 if (sel->main_shader_part)
2414 si_delete_shader(sctx, sel->main_shader_part);
2415 if (sel->main_shader_part_ls)
2416 si_delete_shader(sctx, sel->main_shader_part_ls);
2417 if (sel->main_shader_part_es)
2418 si_delete_shader(sctx, sel->main_shader_part_es);
2419 if (sel->gs_copy_shader)
2420 si_delete_shader(sctx, sel->gs_copy_shader);
2421
2422 util_queue_fence_destroy(&sel->ready);
2423 mtx_destroy(&sel->mutex);
2424 free(sel->tokens);
2425 free(sel);
2426 }
2427
2428 static void si_delete_shader_selector(struct pipe_context *ctx, void *state)
2429 {
2430 struct si_context *sctx = (struct si_context *)ctx;
2431 struct si_shader_selector *sel = (struct si_shader_selector *)state;
2432
2433 si_shader_selector_reference(sctx, &sel, NULL);
2434 }
2435
2436 static unsigned si_get_ps_input_cntl(struct si_context *sctx,
2437 struct si_shader *vs, unsigned name,
2438 unsigned index, unsigned interpolate)
2439 {
2440 struct tgsi_shader_info *vsinfo = &vs->selector->info;
2441 unsigned j, offset, ps_input_cntl = 0;
2442
2443 if (interpolate == TGSI_INTERPOLATE_CONSTANT ||
2444 (interpolate == TGSI_INTERPOLATE_COLOR && sctx->flatshade))
2445 ps_input_cntl |= S_028644_FLAT_SHADE(1);
2446
2447 if (name == TGSI_SEMANTIC_PCOORD ||
2448 (name == TGSI_SEMANTIC_TEXCOORD &&
2449 sctx->sprite_coord_enable & (1 << index))) {
2450 ps_input_cntl |= S_028644_PT_SPRITE_TEX(1);
2451 }
2452
2453 for (j = 0; j < vsinfo->num_outputs; j++) {
2454 if (name == vsinfo->output_semantic_name[j] &&
2455 index == vsinfo->output_semantic_index[j]) {
2456 offset = vs->info.vs_output_param_offset[j];
2457
2458 if (offset <= AC_EXP_PARAM_OFFSET_31) {
2459 /* The input is loaded from parameter memory. */
2460 ps_input_cntl |= S_028644_OFFSET(offset);
2461 } else if (!G_028644_PT_SPRITE_TEX(ps_input_cntl)) {
2462 if (offset == AC_EXP_PARAM_UNDEFINED) {
2463 /* This can happen with depth-only rendering. */
2464 offset = 0;
2465 } else {
2466 /* The input is a DEFAULT_VAL constant. */
2467 assert(offset >= AC_EXP_PARAM_DEFAULT_VAL_0000 &&
2468 offset <= AC_EXP_PARAM_DEFAULT_VAL_1111);
2469 offset -= AC_EXP_PARAM_DEFAULT_VAL_0000;
2470 }
2471
2472 ps_input_cntl = S_028644_OFFSET(0x20) |
2473 S_028644_DEFAULT_VAL(offset);
2474 }
2475 break;
2476 }
2477 }
2478
2479 if (name == TGSI_SEMANTIC_PRIMID)
2480 /* PrimID is written after the last output. */
2481 ps_input_cntl |= S_028644_OFFSET(vs->info.vs_output_param_offset[vsinfo->num_outputs]);
2482 else if (j == vsinfo->num_outputs && !G_028644_PT_SPRITE_TEX(ps_input_cntl)) {
2483 /* No corresponding output found, load defaults into input.
2484 * Don't set any other bits.
2485 * (FLAT_SHADE=1 completely changes behavior) */
2486 ps_input_cntl = S_028644_OFFSET(0x20);
2487 /* D3D 9 behaviour. GL is undefined */
2488 if (name == TGSI_SEMANTIC_COLOR && index == 0)
2489 ps_input_cntl |= S_028644_DEFAULT_VAL(3);
2490 }
2491 return ps_input_cntl;
2492 }
2493
2494 static void si_emit_spi_map(struct si_context *sctx, struct r600_atom *atom)
2495 {
2496 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
2497 struct si_shader *ps = sctx->ps_shader.current;
2498 struct si_shader *vs = si_get_vs_state(sctx);
2499 struct tgsi_shader_info *psinfo = ps ? &ps->selector->info : NULL;
2500 unsigned i, num_interp, num_written = 0, bcol_interp[2];
2501
2502 if (!ps || !ps->selector->info.num_inputs)
2503 return;
2504
2505 num_interp = si_get_ps_num_interp(ps);
2506 assert(num_interp > 0);
2507 radeon_set_context_reg_seq(cs, R_028644_SPI_PS_INPUT_CNTL_0, num_interp);
2508
2509 for (i = 0; i < psinfo->num_inputs; i++) {
2510 unsigned name = psinfo->input_semantic_name[i];
2511 unsigned index = psinfo->input_semantic_index[i];
2512 unsigned interpolate = psinfo->input_interpolate[i];
2513
2514 radeon_emit(cs, si_get_ps_input_cntl(sctx, vs, name, index,
2515 interpolate));
2516 num_written++;
2517
2518 if (name == TGSI_SEMANTIC_COLOR) {
2519 assert(index < ARRAY_SIZE(bcol_interp));
2520 bcol_interp[index] = interpolate;
2521 }
2522 }
2523
2524 if (ps->key.part.ps.prolog.color_two_side) {
2525 unsigned bcol = TGSI_SEMANTIC_BCOLOR;
2526
2527 for (i = 0; i < 2; i++) {
2528 if (!(psinfo->colors_read & (0xf << (i * 4))))
2529 continue;
2530
2531 radeon_emit(cs, si_get_ps_input_cntl(sctx, vs, bcol,
2532 i, bcol_interp[i]));
2533 num_written++;
2534 }
2535 }
2536 assert(num_interp == num_written);
2537 }
2538
2539 /**
2540 * Writing CONFIG or UCONFIG VGT registers requires VGT_FLUSH before that.
2541 */
2542 static void si_init_config_add_vgt_flush(struct si_context *sctx)
2543 {
2544 if (sctx->init_config_has_vgt_flush)
2545 return;
2546
2547 /* Done by Vulkan before VGT_FLUSH. */
2548 si_pm4_cmd_begin(sctx->init_config, PKT3_EVENT_WRITE);
2549 si_pm4_cmd_add(sctx->init_config,
2550 EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4));
2551 si_pm4_cmd_end(sctx->init_config, false);
2552
2553 /* VGT_FLUSH is required even if VGT is idle. It resets VGT pointers. */
2554 si_pm4_cmd_begin(sctx->init_config, PKT3_EVENT_WRITE);
2555 si_pm4_cmd_add(sctx->init_config, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0));
2556 si_pm4_cmd_end(sctx->init_config, false);
2557 sctx->init_config_has_vgt_flush = true;
2558 }
2559
2560 /* Initialize state related to ESGS / GSVS ring buffers */
2561 static bool si_update_gs_ring_buffers(struct si_context *sctx)
2562 {
2563 struct si_shader_selector *es =
2564 sctx->tes_shader.cso ? sctx->tes_shader.cso : sctx->vs_shader.cso;
2565 struct si_shader_selector *gs = sctx->gs_shader.cso;
2566 struct si_pm4_state *pm4;
2567
2568 /* Chip constants. */
2569 unsigned num_se = sctx->screen->b.info.max_se;
2570 unsigned wave_size = 64;
2571 unsigned max_gs_waves = 32 * num_se; /* max 32 per SE on GCN */
2572 /* On SI-CI, the value comes from VGT_GS_VERTEX_REUSE = 16.
2573 * On VI+, the value comes from VGT_VERTEX_REUSE_BLOCK_CNTL = 30 (+2).
2574 */
2575 unsigned gs_vertex_reuse = (sctx->b.chip_class >= VI ? 32 : 16) * num_se;
2576 unsigned alignment = 256 * num_se;
2577 /* The maximum size is 63.999 MB per SE. */
2578 unsigned max_size = ((unsigned)(63.999 * 1024 * 1024) & ~255) * num_se;
2579
2580 /* Calculate the minimum size. */
2581 unsigned min_esgs_ring_size = align(es->esgs_itemsize * gs_vertex_reuse *
2582 wave_size, alignment);
2583
2584 /* These are recommended sizes, not minimum sizes. */
2585 unsigned esgs_ring_size = max_gs_waves * 2 * wave_size *
2586 es->esgs_itemsize * gs->gs_input_verts_per_prim;
2587 unsigned gsvs_ring_size = max_gs_waves * 2 * wave_size *
2588 gs->max_gsvs_emit_size;
2589
2590 min_esgs_ring_size = align(min_esgs_ring_size, alignment);
2591 esgs_ring_size = align(esgs_ring_size, alignment);
2592 gsvs_ring_size = align(gsvs_ring_size, alignment);
2593
2594 esgs_ring_size = CLAMP(esgs_ring_size, min_esgs_ring_size, max_size);
2595 gsvs_ring_size = MIN2(gsvs_ring_size, max_size);
2596
2597 /* Some rings don't have to be allocated if shaders don't use them.
2598 * (e.g. no varyings between ES and GS or GS and VS)
2599 *
2600 * GFX9 doesn't have the ESGS ring.
2601 */
2602 bool update_esgs = sctx->b.chip_class <= VI &&
2603 esgs_ring_size &&
2604 (!sctx->esgs_ring ||
2605 sctx->esgs_ring->width0 < esgs_ring_size);
2606 bool update_gsvs = gsvs_ring_size &&
2607 (!sctx->gsvs_ring ||
2608 sctx->gsvs_ring->width0 < gsvs_ring_size);
2609
2610 if (!update_esgs && !update_gsvs)
2611 return true;
2612
2613 if (update_esgs) {
2614 pipe_resource_reference(&sctx->esgs_ring, NULL);
2615 sctx->esgs_ring =
2616 r600_aligned_buffer_create(sctx->b.b.screen,
2617 R600_RESOURCE_FLAG_UNMAPPABLE,
2618 PIPE_USAGE_DEFAULT,
2619 esgs_ring_size, alignment);
2620 if (!sctx->esgs_ring)
2621 return false;
2622 }
2623
2624 if (update_gsvs) {
2625 pipe_resource_reference(&sctx->gsvs_ring, NULL);
2626 sctx->gsvs_ring =
2627 r600_aligned_buffer_create(sctx->b.b.screen,
2628 R600_RESOURCE_FLAG_UNMAPPABLE,
2629 PIPE_USAGE_DEFAULT,
2630 gsvs_ring_size, alignment);
2631 if (!sctx->gsvs_ring)
2632 return false;
2633 }
2634
2635 /* Create the "init_config_gs_rings" state. */
2636 pm4 = CALLOC_STRUCT(si_pm4_state);
2637 if (!pm4)
2638 return false;
2639
2640 if (sctx->b.chip_class >= CIK) {
2641 if (sctx->esgs_ring) {
2642 assert(sctx->b.chip_class <= VI);
2643 si_pm4_set_reg(pm4, R_030900_VGT_ESGS_RING_SIZE,
2644 sctx->esgs_ring->width0 / 256);
2645 }
2646 if (sctx->gsvs_ring)
2647 si_pm4_set_reg(pm4, R_030904_VGT_GSVS_RING_SIZE,
2648 sctx->gsvs_ring->width0 / 256);
2649 } else {
2650 if (sctx->esgs_ring)
2651 si_pm4_set_reg(pm4, R_0088C8_VGT_ESGS_RING_SIZE,
2652 sctx->esgs_ring->width0 / 256);
2653 if (sctx->gsvs_ring)
2654 si_pm4_set_reg(pm4, R_0088CC_VGT_GSVS_RING_SIZE,
2655 sctx->gsvs_ring->width0 / 256);
2656 }
2657
2658 /* Set the state. */
2659 if (sctx->init_config_gs_rings)
2660 si_pm4_free_state(sctx, sctx->init_config_gs_rings, ~0);
2661 sctx->init_config_gs_rings = pm4;
2662
2663 if (!sctx->init_config_has_vgt_flush) {
2664 si_init_config_add_vgt_flush(sctx);
2665 si_pm4_upload_indirect_buffer(sctx, sctx->init_config);
2666 }
2667
2668 /* Flush the context to re-emit both init_config states. */
2669 sctx->b.initial_gfx_cs_size = 0; /* force flush */
2670 si_context_gfx_flush(sctx, RADEON_FLUSH_ASYNC, NULL);
2671
2672 /* Set ring bindings. */
2673 if (sctx->esgs_ring) {
2674 assert(sctx->b.chip_class <= VI);
2675 si_set_ring_buffer(&sctx->b.b, SI_ES_RING_ESGS,
2676 sctx->esgs_ring, 0, sctx->esgs_ring->width0,
2677 true, true, 4, 64, 0);
2678 si_set_ring_buffer(&sctx->b.b, SI_GS_RING_ESGS,
2679 sctx->esgs_ring, 0, sctx->esgs_ring->width0,
2680 false, false, 0, 0, 0);
2681 }
2682 if (sctx->gsvs_ring) {
2683 si_set_ring_buffer(&sctx->b.b, SI_RING_GSVS,
2684 sctx->gsvs_ring, 0, sctx->gsvs_ring->width0,
2685 false, false, 0, 0, 0);
2686 }
2687
2688 return true;
2689 }
2690
2691 static void si_shader_lock(struct si_shader *shader)
2692 {
2693 mtx_lock(&shader->selector->mutex);
2694 if (shader->previous_stage_sel) {
2695 assert(shader->previous_stage_sel != shader->selector);
2696 mtx_lock(&shader->previous_stage_sel->mutex);
2697 }
2698 }
2699
2700 static void si_shader_unlock(struct si_shader *shader)
2701 {
2702 if (shader->previous_stage_sel)
2703 mtx_unlock(&shader->previous_stage_sel->mutex);
2704 mtx_unlock(&shader->selector->mutex);
2705 }
2706
2707 /**
2708 * @returns 1 if \p sel has been updated to use a new scratch buffer
2709 * 0 if not
2710 * < 0 if there was a failure
2711 */
2712 static int si_update_scratch_buffer(struct si_context *sctx,
2713 struct si_shader *shader)
2714 {
2715 uint64_t scratch_va = sctx->scratch_buffer->gpu_address;
2716 int r;
2717
2718 if (!shader)
2719 return 0;
2720
2721 /* This shader doesn't need a scratch buffer */
2722 if (shader->config.scratch_bytes_per_wave == 0)
2723 return 0;
2724
2725 /* Prevent race conditions when updating:
2726 * - si_shader::scratch_bo
2727 * - si_shader::binary::code
2728 * - si_shader::previous_stage::binary::code.
2729 */
2730 si_shader_lock(shader);
2731
2732 /* This shader is already configured to use the current
2733 * scratch buffer. */
2734 if (shader->scratch_bo == sctx->scratch_buffer) {
2735 si_shader_unlock(shader);
2736 return 0;
2737 }
2738
2739 assert(sctx->scratch_buffer);
2740
2741 if (shader->previous_stage)
2742 si_shader_apply_scratch_relocs(shader->previous_stage, scratch_va);
2743
2744 si_shader_apply_scratch_relocs(shader, scratch_va);
2745
2746 /* Replace the shader bo with a new bo that has the relocs applied. */
2747 r = si_shader_binary_upload(sctx->screen, shader);
2748 if (r) {
2749 si_shader_unlock(shader);
2750 return r;
2751 }
2752
2753 /* Update the shader state to use the new shader bo. */
2754 si_shader_init_pm4_state(sctx->screen, shader);
2755
2756 r600_resource_reference(&shader->scratch_bo, sctx->scratch_buffer);
2757
2758 si_shader_unlock(shader);
2759 return 1;
2760 }
2761
2762 static unsigned si_get_current_scratch_buffer_size(struct si_context *sctx)
2763 {
2764 return sctx->scratch_buffer ? sctx->scratch_buffer->b.b.width0 : 0;
2765 }
2766
2767 static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_shader *shader)
2768 {
2769 return shader ? shader->config.scratch_bytes_per_wave : 0;
2770 }
2771
2772 static struct si_shader *si_get_tcs_current(struct si_context *sctx)
2773 {
2774 if (!sctx->tes_shader.cso)
2775 return NULL; /* tessellation disabled */
2776
2777 return sctx->tcs_shader.cso ? sctx->tcs_shader.current :
2778 sctx->fixed_func_tcs_shader.current;
2779 }
2780
2781 static unsigned si_get_max_scratch_bytes_per_wave(struct si_context *sctx)
2782 {
2783 unsigned bytes = 0;
2784
2785 bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx->ps_shader.current));
2786 bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx->gs_shader.current));
2787 bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx->vs_shader.current));
2788 bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(sctx->tes_shader.current));
2789
2790 if (sctx->tes_shader.cso) {
2791 struct si_shader *tcs = si_get_tcs_current(sctx);
2792
2793 bytes = MAX2(bytes, si_get_scratch_buffer_bytes_per_wave(tcs));
2794 }
2795 return bytes;
2796 }
2797
2798 static bool si_update_scratch_relocs(struct si_context *sctx)
2799 {
2800 struct si_shader *tcs = si_get_tcs_current(sctx);
2801 int r;
2802
2803 /* Update the shaders, so that they are using the latest scratch.
2804 * The scratch buffer may have been changed since these shaders were
2805 * last used, so we still need to try to update them, even if they
2806 * require scratch buffers smaller than the current size.
2807 */
2808 r = si_update_scratch_buffer(sctx, sctx->ps_shader.current);
2809 if (r < 0)
2810 return false;
2811 if (r == 1)
2812 si_pm4_bind_state(sctx, ps, sctx->ps_shader.current->pm4);
2813
2814 r = si_update_scratch_buffer(sctx, sctx->gs_shader.current);
2815 if (r < 0)
2816 return false;
2817 if (r == 1)
2818 si_pm4_bind_state(sctx, gs, sctx->gs_shader.current->pm4);
2819
2820 r = si_update_scratch_buffer(sctx, tcs);
2821 if (r < 0)
2822 return false;
2823 if (r == 1)
2824 si_pm4_bind_state(sctx, hs, tcs->pm4);
2825
2826 /* VS can be bound as LS, ES, or VS. */
2827 r = si_update_scratch_buffer(sctx, sctx->vs_shader.current);
2828 if (r < 0)
2829 return false;
2830 if (r == 1) {
2831 if (sctx->tes_shader.current)
2832 si_pm4_bind_state(sctx, ls, sctx->vs_shader.current->pm4);
2833 else if (sctx->gs_shader.current)
2834 si_pm4_bind_state(sctx, es, sctx->vs_shader.current->pm4);
2835 else
2836 si_pm4_bind_state(sctx, vs, sctx->vs_shader.current->pm4);
2837 }
2838
2839 /* TES can be bound as ES or VS. */
2840 r = si_update_scratch_buffer(sctx, sctx->tes_shader.current);
2841 if (r < 0)
2842 return false;
2843 if (r == 1) {
2844 if (sctx->gs_shader.current)
2845 si_pm4_bind_state(sctx, es, sctx->tes_shader.current->pm4);
2846 else
2847 si_pm4_bind_state(sctx, vs, sctx->tes_shader.current->pm4);
2848 }
2849
2850 return true;
2851 }
2852
2853 static bool si_update_spi_tmpring_size(struct si_context *sctx)
2854 {
2855 unsigned current_scratch_buffer_size =
2856 si_get_current_scratch_buffer_size(sctx);
2857 unsigned scratch_bytes_per_wave =
2858 si_get_max_scratch_bytes_per_wave(sctx);
2859 unsigned scratch_needed_size = scratch_bytes_per_wave *
2860 sctx->scratch_waves;
2861 unsigned spi_tmpring_size;
2862
2863 if (scratch_needed_size > 0) {
2864 if (scratch_needed_size > current_scratch_buffer_size) {
2865 /* Create a bigger scratch buffer */
2866 r600_resource_reference(&sctx->scratch_buffer, NULL);
2867
2868 sctx->scratch_buffer = (struct r600_resource*)
2869 r600_aligned_buffer_create(&sctx->screen->b.b,
2870 R600_RESOURCE_FLAG_UNMAPPABLE,
2871 PIPE_USAGE_DEFAULT,
2872 scratch_needed_size, 256);
2873 if (!sctx->scratch_buffer)
2874 return false;
2875
2876 si_mark_atom_dirty(sctx, &sctx->scratch_state);
2877 r600_context_add_resource_size(&sctx->b.b,
2878 &sctx->scratch_buffer->b.b);
2879 }
2880
2881 if (!si_update_scratch_relocs(sctx))
2882 return false;
2883 }
2884
2885 /* The LLVM shader backend should be reporting aligned scratch_sizes. */
2886 assert((scratch_needed_size & ~0x3FF) == scratch_needed_size &&
2887 "scratch size should already be aligned correctly.");
2888
2889 spi_tmpring_size = S_0286E8_WAVES(sctx->scratch_waves) |
2890 S_0286E8_WAVESIZE(scratch_bytes_per_wave >> 10);
2891 if (spi_tmpring_size != sctx->spi_tmpring_size) {
2892 sctx->spi_tmpring_size = spi_tmpring_size;
2893 si_mark_atom_dirty(sctx, &sctx->scratch_state);
2894 }
2895 return true;
2896 }
2897
2898 static void si_init_tess_factor_ring(struct si_context *sctx)
2899 {
2900 bool double_offchip_buffers = sctx->b.chip_class >= CIK &&
2901 sctx->b.family != CHIP_CARRIZO &&
2902 sctx->b.family != CHIP_STONEY;
2903 unsigned max_offchip_buffers_per_se = double_offchip_buffers ? 128 : 64;
2904 unsigned max_offchip_buffers = max_offchip_buffers_per_se *
2905 sctx->screen->b.info.max_se;
2906 unsigned offchip_granularity;
2907
2908 switch (sctx->screen->tess_offchip_block_dw_size) {
2909 default:
2910 assert(0);
2911 /* fall through */
2912 case 8192:
2913 offchip_granularity = V_03093C_X_8K_DWORDS;
2914 break;
2915 case 4096:
2916 offchip_granularity = V_03093C_X_4K_DWORDS;
2917 break;
2918 }
2919
2920 switch (sctx->b.chip_class) {
2921 case SI:
2922 max_offchip_buffers = MIN2(max_offchip_buffers, 126);
2923 break;
2924 case CIK:
2925 case VI:
2926 case GFX9:
2927 max_offchip_buffers = MIN2(max_offchip_buffers, 508);
2928 break;
2929 default:
2930 assert(0);
2931 return;
2932 }
2933
2934 assert(!sctx->tf_ring);
2935 /* Use 64K alignment for both rings, so that we can pass the address
2936 * to shaders as one SGPR containing bits [16:47].
2937 */
2938 sctx->tf_ring = r600_aligned_buffer_create(sctx->b.b.screen,
2939 R600_RESOURCE_FLAG_UNMAPPABLE,
2940 PIPE_USAGE_DEFAULT,
2941 32768 * sctx->screen->b.info.max_se,
2942 64 * 1024);
2943 if (!sctx->tf_ring)
2944 return;
2945
2946 assert(((sctx->tf_ring->width0 / 4) & C_030938_SIZE) == 0);
2947
2948 sctx->tess_offchip_ring =
2949 r600_aligned_buffer_create(sctx->b.b.screen,
2950 R600_RESOURCE_FLAG_UNMAPPABLE,
2951 PIPE_USAGE_DEFAULT,
2952 max_offchip_buffers *
2953 sctx->screen->tess_offchip_block_dw_size * 4,
2954 64 * 1024);
2955 if (!sctx->tess_offchip_ring)
2956 return;
2957
2958 si_init_config_add_vgt_flush(sctx);
2959
2960 uint64_t offchip_va = r600_resource(sctx->tess_offchip_ring)->gpu_address;
2961 uint64_t factor_va = r600_resource(sctx->tf_ring)->gpu_address;
2962 assert((offchip_va & 0xffff) == 0);
2963 assert((factor_va & 0xffff) == 0);
2964
2965 si_pm4_add_bo(sctx->init_config, r600_resource(sctx->tess_offchip_ring),
2966 RADEON_USAGE_READWRITE, RADEON_PRIO_SHADER_RINGS);
2967 si_pm4_add_bo(sctx->init_config, r600_resource(sctx->tf_ring),
2968 RADEON_USAGE_READWRITE, RADEON_PRIO_SHADER_RINGS);
2969
2970 /* Append these registers to the init config state. */
2971 if (sctx->b.chip_class >= CIK) {
2972 if (sctx->b.chip_class >= VI)
2973 --max_offchip_buffers;
2974
2975 si_pm4_set_reg(sctx->init_config, R_030938_VGT_TF_RING_SIZE,
2976 S_030938_SIZE(sctx->tf_ring->width0 / 4));
2977 si_pm4_set_reg(sctx->init_config, R_030940_VGT_TF_MEMORY_BASE,
2978 factor_va >> 8);
2979 if (sctx->b.chip_class >= GFX9)
2980 si_pm4_set_reg(sctx->init_config, R_030944_VGT_TF_MEMORY_BASE_HI,
2981 factor_va >> 40);
2982 si_pm4_set_reg(sctx->init_config, R_03093C_VGT_HS_OFFCHIP_PARAM,
2983 S_03093C_OFFCHIP_BUFFERING(max_offchip_buffers) |
2984 S_03093C_OFFCHIP_GRANULARITY(offchip_granularity));
2985 } else {
2986 assert(offchip_granularity == V_03093C_X_8K_DWORDS);
2987 si_pm4_set_reg(sctx->init_config, R_008988_VGT_TF_RING_SIZE,
2988 S_008988_SIZE(sctx->tf_ring->width0 / 4));
2989 si_pm4_set_reg(sctx->init_config, R_0089B8_VGT_TF_MEMORY_BASE,
2990 factor_va >> 8);
2991 si_pm4_set_reg(sctx->init_config, R_0089B0_VGT_HS_OFFCHIP_PARAM,
2992 S_0089B0_OFFCHIP_BUFFERING(max_offchip_buffers));
2993 }
2994
2995 if (sctx->b.chip_class >= GFX9) {
2996 si_pm4_set_reg(sctx->init_config,
2997 R_00B430_SPI_SHADER_USER_DATA_LS_0 +
2998 GFX9_SGPR_TCS_OFFCHIP_ADDR_BASE64K * 4,
2999 offchip_va >> 16);
3000 si_pm4_set_reg(sctx->init_config,
3001 R_00B430_SPI_SHADER_USER_DATA_LS_0 +
3002 GFX9_SGPR_TCS_FACTOR_ADDR_BASE64K * 4,
3003 factor_va >> 16);
3004 } else {
3005 si_pm4_set_reg(sctx->init_config,
3006 R_00B430_SPI_SHADER_USER_DATA_HS_0 +
3007 GFX6_SGPR_TCS_OFFCHIP_ADDR_BASE64K * 4,
3008 offchip_va >> 16);
3009 si_pm4_set_reg(sctx->init_config,
3010 R_00B430_SPI_SHADER_USER_DATA_HS_0 +
3011 GFX6_SGPR_TCS_FACTOR_ADDR_BASE64K * 4,
3012 factor_va >> 16);
3013 }
3014
3015 /* Flush the context to re-emit the init_config state.
3016 * This is done only once in a lifetime of a context.
3017 */
3018 si_pm4_upload_indirect_buffer(sctx, sctx->init_config);
3019 sctx->b.initial_gfx_cs_size = 0; /* force flush */
3020 si_context_gfx_flush(sctx, RADEON_FLUSH_ASYNC, NULL);
3021 }
3022
3023 /**
3024 * This is used when TCS is NULL in the VS->TCS->TES chain. In this case,
3025 * VS passes its outputs to TES directly, so the fixed-function shader only
3026 * has to write TESSOUTER and TESSINNER.
3027 */
3028 static void si_generate_fixed_func_tcs(struct si_context *sctx)
3029 {
3030 struct ureg_src outer, inner;
3031 struct ureg_dst tessouter, tessinner;
3032 struct ureg_program *ureg = ureg_create(PIPE_SHADER_TESS_CTRL);
3033
3034 if (!ureg)
3035 return; /* if we get here, we're screwed */
3036
3037 assert(!sctx->fixed_func_tcs_shader.cso);
3038
3039 outer = ureg_DECL_system_value(ureg,
3040 TGSI_SEMANTIC_DEFAULT_TESSOUTER_SI, 0);
3041 inner = ureg_DECL_system_value(ureg,
3042 TGSI_SEMANTIC_DEFAULT_TESSINNER_SI, 0);
3043
3044 tessouter = ureg_DECL_output(ureg, TGSI_SEMANTIC_TESSOUTER, 0);
3045 tessinner = ureg_DECL_output(ureg, TGSI_SEMANTIC_TESSINNER, 0);
3046
3047 ureg_MOV(ureg, tessouter, outer);
3048 ureg_MOV(ureg, tessinner, inner);
3049 ureg_END(ureg);
3050
3051 sctx->fixed_func_tcs_shader.cso =
3052 ureg_create_shader_and_destroy(ureg, &sctx->b.b);
3053 }
3054
3055 static void si_update_vgt_shader_config(struct si_context *sctx)
3056 {
3057 /* Calculate the index of the config.
3058 * 0 = VS, 1 = VS+GS, 2 = VS+Tess, 3 = VS+Tess+GS */
3059 unsigned index = 2*!!sctx->tes_shader.cso + !!sctx->gs_shader.cso;
3060 struct si_pm4_state **pm4 = &sctx->vgt_shader_config[index];
3061
3062 if (!*pm4) {
3063 uint32_t stages = 0;
3064
3065 *pm4 = CALLOC_STRUCT(si_pm4_state);
3066
3067 if (sctx->tes_shader.cso) {
3068 stages |= S_028B54_LS_EN(V_028B54_LS_STAGE_ON) |
3069 S_028B54_HS_EN(1) | S_028B54_DYNAMIC_HS(1);
3070
3071 if (sctx->gs_shader.cso)
3072 stages |= S_028B54_ES_EN(V_028B54_ES_STAGE_DS) |
3073 S_028B54_GS_EN(1) |
3074 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER);
3075 else
3076 stages |= S_028B54_VS_EN(V_028B54_VS_STAGE_DS);
3077 } else if (sctx->gs_shader.cso) {
3078 stages |= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL) |
3079 S_028B54_GS_EN(1) |
3080 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER);
3081 }
3082
3083 if (sctx->b.chip_class >= GFX9)
3084 stages |= S_028B54_MAX_PRIMGRP_IN_WAVE(2);
3085
3086 si_pm4_set_reg(*pm4, R_028B54_VGT_SHADER_STAGES_EN, stages);
3087 }
3088 si_pm4_bind_state(sctx, vgt_shader_config, *pm4);
3089 }
3090
3091 bool si_update_shaders(struct si_context *sctx)
3092 {
3093 struct pipe_context *ctx = (struct pipe_context*)sctx;
3094 struct si_compiler_ctx_state compiler_state;
3095 struct si_state_rasterizer *rs = sctx->queued.named.rasterizer;
3096 struct si_shader *old_vs = si_get_vs_state(sctx);
3097 bool old_clip_disable = old_vs ? old_vs->key.opt.hw_vs.clip_disable : false;
3098 struct si_shader *old_ps = sctx->ps_shader.current;
3099 unsigned old_spi_shader_col_format =
3100 old_ps ? old_ps->key.part.ps.epilog.spi_shader_col_format : 0;
3101 int r;
3102
3103 compiler_state.tm = sctx->tm;
3104 compiler_state.debug = sctx->b.debug;
3105 compiler_state.is_debug_context = sctx->is_debug;
3106
3107 /* Update stages before GS. */
3108 if (sctx->tes_shader.cso) {
3109 if (!sctx->tf_ring) {
3110 si_init_tess_factor_ring(sctx);
3111 if (!sctx->tf_ring)
3112 return false;
3113 }
3114
3115 /* VS as LS */
3116 if (sctx->b.chip_class <= VI) {
3117 r = si_shader_select(ctx, &sctx->vs_shader,
3118 &compiler_state);
3119 if (r)
3120 return false;
3121 si_pm4_bind_state(sctx, ls, sctx->vs_shader.current->pm4);
3122 }
3123
3124 if (sctx->tcs_shader.cso) {
3125 r = si_shader_select(ctx, &sctx->tcs_shader,
3126 &compiler_state);
3127 if (r)
3128 return false;
3129 si_pm4_bind_state(sctx, hs, sctx->tcs_shader.current->pm4);
3130 } else {
3131 if (!sctx->fixed_func_tcs_shader.cso) {
3132 si_generate_fixed_func_tcs(sctx);
3133 if (!sctx->fixed_func_tcs_shader.cso)
3134 return false;
3135 }
3136
3137 r = si_shader_select(ctx, &sctx->fixed_func_tcs_shader,
3138 &compiler_state);
3139 if (r)
3140 return false;
3141 si_pm4_bind_state(sctx, hs,
3142 sctx->fixed_func_tcs_shader.current->pm4);
3143 }
3144
3145 if (sctx->gs_shader.cso) {
3146 /* TES as ES */
3147 if (sctx->b.chip_class <= VI) {
3148 r = si_shader_select(ctx, &sctx->tes_shader,
3149 &compiler_state);
3150 if (r)
3151 return false;
3152 si_pm4_bind_state(sctx, es, sctx->tes_shader.current->pm4);
3153 }
3154 } else {
3155 /* TES as VS */
3156 r = si_shader_select(ctx, &sctx->tes_shader,
3157 &compiler_state);
3158 if (r)
3159 return false;
3160 si_pm4_bind_state(sctx, vs, sctx->tes_shader.current->pm4);
3161 }
3162 } else if (sctx->gs_shader.cso) {
3163 if (sctx->b.chip_class <= VI) {
3164 /* VS as ES */
3165 r = si_shader_select(ctx, &sctx->vs_shader,
3166 &compiler_state);
3167 if (r)
3168 return false;
3169 si_pm4_bind_state(sctx, es, sctx->vs_shader.current->pm4);
3170
3171 si_pm4_bind_state(sctx, ls, NULL);
3172 si_pm4_bind_state(sctx, hs, NULL);
3173 }
3174 } else {
3175 /* VS as VS */
3176 r = si_shader_select(ctx, &sctx->vs_shader, &compiler_state);
3177 if (r)
3178 return false;
3179 si_pm4_bind_state(sctx, vs, sctx->vs_shader.current->pm4);
3180 si_pm4_bind_state(sctx, ls, NULL);
3181 si_pm4_bind_state(sctx, hs, NULL);
3182 }
3183
3184 /* Update GS. */
3185 if (sctx->gs_shader.cso) {
3186 r = si_shader_select(ctx, &sctx->gs_shader, &compiler_state);
3187 if (r)
3188 return false;
3189 si_pm4_bind_state(sctx, gs, sctx->gs_shader.current->pm4);
3190 si_pm4_bind_state(sctx, vs, sctx->gs_shader.cso->gs_copy_shader->pm4);
3191
3192 if (!si_update_gs_ring_buffers(sctx))
3193 return false;
3194 } else {
3195 si_pm4_bind_state(sctx, gs, NULL);
3196 if (sctx->b.chip_class <= VI)
3197 si_pm4_bind_state(sctx, es, NULL);
3198 }
3199
3200 si_update_vgt_shader_config(sctx);
3201
3202 if (old_clip_disable != si_get_vs_state(sctx)->key.opt.hw_vs.clip_disable)
3203 si_mark_atom_dirty(sctx, &sctx->clip_regs);
3204
3205 if (sctx->ps_shader.cso) {
3206 unsigned db_shader_control;
3207
3208 r = si_shader_select(ctx, &sctx->ps_shader, &compiler_state);
3209 if (r)
3210 return false;
3211 si_pm4_bind_state(sctx, ps, sctx->ps_shader.current->pm4);
3212
3213 db_shader_control =
3214 sctx->ps_shader.cso->db_shader_control |
3215 S_02880C_KILL_ENABLE(si_get_alpha_test_func(sctx) != PIPE_FUNC_ALWAYS);
3216
3217 if (si_pm4_state_changed(sctx, ps) || si_pm4_state_changed(sctx, vs) ||
3218 sctx->sprite_coord_enable != rs->sprite_coord_enable ||
3219 sctx->flatshade != rs->flatshade) {
3220 sctx->sprite_coord_enable = rs->sprite_coord_enable;
3221 sctx->flatshade = rs->flatshade;
3222 si_mark_atom_dirty(sctx, &sctx->spi_map);
3223 }
3224
3225 if (sctx->screen->b.rbplus_allowed &&
3226 si_pm4_state_changed(sctx, ps) &&
3227 (!old_ps ||
3228 old_spi_shader_col_format !=
3229 sctx->ps_shader.current->key.part.ps.epilog.spi_shader_col_format))
3230 si_mark_atom_dirty(sctx, &sctx->cb_render_state);
3231
3232 if (sctx->ps_db_shader_control != db_shader_control) {
3233 sctx->ps_db_shader_control = db_shader_control;
3234 si_mark_atom_dirty(sctx, &sctx->db_render_state);
3235 }
3236
3237 if (sctx->smoothing_enabled != sctx->ps_shader.current->key.part.ps.epilog.poly_line_smoothing) {
3238 sctx->smoothing_enabled = sctx->ps_shader.current->key.part.ps.epilog.poly_line_smoothing;
3239 si_mark_atom_dirty(sctx, &sctx->msaa_config);
3240
3241 if (sctx->b.chip_class == SI)
3242 si_mark_atom_dirty(sctx, &sctx->db_render_state);
3243
3244 if (sctx->framebuffer.nr_samples <= 1)
3245 si_mark_atom_dirty(sctx, &sctx->msaa_sample_locs.atom);
3246 }
3247 }
3248
3249 if (si_pm4_state_changed(sctx, ls) ||
3250 si_pm4_state_changed(sctx, hs) ||
3251 si_pm4_state_changed(sctx, es) ||
3252 si_pm4_state_changed(sctx, gs) ||
3253 si_pm4_state_changed(sctx, vs) ||
3254 si_pm4_state_changed(sctx, ps)) {
3255 if (!si_update_spi_tmpring_size(sctx))
3256 return false;
3257 }
3258
3259 if (sctx->b.chip_class >= CIK)
3260 si_mark_atom_dirty(sctx, &sctx->prefetch_L2);
3261
3262 sctx->do_update_shaders = false;
3263 return true;
3264 }
3265
3266 static void si_emit_scratch_state(struct si_context *sctx,
3267 struct r600_atom *atom)
3268 {
3269 struct radeon_winsys_cs *cs = sctx->b.gfx.cs;
3270
3271 radeon_set_context_reg(cs, R_0286E8_SPI_TMPRING_SIZE,
3272 sctx->spi_tmpring_size);
3273
3274 if (sctx->scratch_buffer) {
3275 radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx,
3276 sctx->scratch_buffer, RADEON_USAGE_READWRITE,
3277 RADEON_PRIO_SCRATCH_BUFFER);
3278 }
3279 }
3280
3281 void si_init_shader_functions(struct si_context *sctx)
3282 {
3283 si_init_atom(sctx, &sctx->spi_map, &sctx->atoms.s.spi_map, si_emit_spi_map);
3284 si_init_atom(sctx, &sctx->scratch_state, &sctx->atoms.s.scratch_state,
3285 si_emit_scratch_state);
3286
3287 sctx->b.b.create_vs_state = si_create_shader_selector;
3288 sctx->b.b.create_tcs_state = si_create_shader_selector;
3289 sctx->b.b.create_tes_state = si_create_shader_selector;
3290 sctx->b.b.create_gs_state = si_create_shader_selector;
3291 sctx->b.b.create_fs_state = si_create_shader_selector;
3292
3293 sctx->b.b.bind_vs_state = si_bind_vs_shader;
3294 sctx->b.b.bind_tcs_state = si_bind_tcs_shader;
3295 sctx->b.b.bind_tes_state = si_bind_tes_shader;
3296 sctx->b.b.bind_gs_state = si_bind_gs_shader;
3297 sctx->b.b.bind_fs_state = si_bind_ps_shader;
3298
3299 sctx->b.b.delete_vs_state = si_delete_shader_selector;
3300 sctx->b.b.delete_tcs_state = si_delete_shader_selector;
3301 sctx->b.b.delete_tes_state = si_delete_shader_selector;
3302 sctx->b.b.delete_gs_state = si_delete_shader_selector;
3303 sctx->b.b.delete_fs_state = si_delete_shader_selector;
3304 }