1 /*
2 * Copyright 2013 Advanced Micro Devices, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
23 *
24 */
25
26 #include "si_compute.h"
27
28 #include "ac_rtld.h"
29 #include "amd_kernel_code_t.h"
30 #include "nir/tgsi_to_nir.h"
31 #include "si_build_pm4.h"
32 #include "util/u_async_debug.h"
33 #include "util/u_memory.h"
34 #include "util/u_upload_mgr.h"
35
36 #define COMPUTE_DBG(sscreen, fmt, args...) \
37 do { \
38 if ((sscreen->debug_flags & DBG(COMPUTE))) \
39 fprintf(stderr, fmt, ##args); \
40 } while (0);
41
42 struct dispatch_packet {
43 uint16_t header;
44 uint16_t setup;
45 uint16_t workgroup_size_x;
46 uint16_t workgroup_size_y;
47 uint16_t workgroup_size_z;
48 uint16_t reserved0;
49 uint32_t grid_size_x;
50 uint32_t grid_size_y;
51 uint32_t grid_size_z;
52 uint32_t private_segment_size;
53 uint32_t group_segment_size;
54 uint64_t kernel_object;
55 uint64_t kernarg_address;
56 uint64_t reserved2;
57 };
58
si_compute_get_code_object(const struct si_compute * program,uint64_t symbol_offset)59 static const amd_kernel_code_t *si_compute_get_code_object(const struct si_compute *program,
60 uint64_t symbol_offset)
61 {
62 const struct si_shader_selector *sel = &program->sel;
63
64 if (program->ir_type != PIPE_SHADER_IR_NATIVE)
65 return NULL;
66
67 struct ac_rtld_binary rtld;
68 if (!ac_rtld_open(&rtld,
69 (struct ac_rtld_open_info){.info = &sel->screen->info,
70 .shader_type = MESA_SHADER_COMPUTE,
71 .wave_size = program->shader.wave_size,
72 .num_parts = 1,
73 .elf_ptrs = &program->shader.binary.elf_buffer,
74 .elf_sizes = &program->shader.binary.elf_size}))
75 return NULL;
76
77 const amd_kernel_code_t *result = NULL;
78 const char *text;
79 size_t size;
80 if (!ac_rtld_get_section_by_name(&rtld, ".text", &text, &size))
81 goto out;
82
83 if (symbol_offset + sizeof(amd_kernel_code_t) > size)
84 goto out;
85
86 result = (const amd_kernel_code_t *)(text + symbol_offset);
87
88 out:
89 ac_rtld_close(&rtld);
90 return result;
91 }
92
code_object_to_config(const amd_kernel_code_t * code_object,struct ac_shader_config * out_config)93 static void code_object_to_config(const amd_kernel_code_t *code_object,
94 struct ac_shader_config *out_config)
95 {
96
97 uint32_t rsrc1 = code_object->compute_pgm_resource_registers;
98 uint32_t rsrc2 = code_object->compute_pgm_resource_registers >> 32;
99 out_config->num_sgprs = code_object->wavefront_sgpr_count;
100 out_config->num_vgprs = code_object->workitem_vgpr_count;
101 out_config->float_mode = G_00B028_FLOAT_MODE(rsrc1);
102 out_config->rsrc1 = rsrc1;
103 out_config->lds_size = MAX2(out_config->lds_size, G_00B84C_LDS_SIZE(rsrc2));
104 out_config->rsrc2 = rsrc2;
105 out_config->scratch_bytes_per_wave =
106 align(code_object->workitem_private_segment_byte_size * 64, 1024);
107 }
108
109 /* Asynchronous compute shader compilation. */
si_create_compute_state_async(void * job,void * gdata,int thread_index)110 static void si_create_compute_state_async(void *job, void *gdata, int thread_index)
111 {
112 struct si_compute *program = (struct si_compute *)job;
113 struct si_shader_selector *sel = &program->sel;
114 struct si_shader *shader = &program->shader;
115 struct ac_llvm_compiler *compiler;
116 struct util_debug_callback *debug = &sel->compiler_ctx_state.debug;
117 struct si_screen *sscreen = sel->screen;
118
119 assert(!debug->debug_message || debug->async);
120 assert(thread_index >= 0);
121 assert(thread_index < ARRAY_SIZE(sscreen->compiler));
122 compiler = &sscreen->compiler[thread_index];
123
124 if (!compiler->passes)
125 si_init_compiler(sscreen, compiler);
126
127 assert(program->ir_type == PIPE_SHADER_IR_NIR);
128 si_nir_scan_shader(sscreen, sel->nir, &sel->info);
129
130 si_get_active_slot_masks(sscreen, &sel->info, &sel->active_const_and_shader_buffers,
131 &sel->active_samplers_and_images);
132
133 program->shader.is_monolithic = true;
134
135 /* Variable block sizes need 10 bits (1 + log2(SI_MAX_VARIABLE_THREADS_PER_BLOCK)) per dim.
136 * We pack them into a single user SGPR.
137 */
138 unsigned user_sgprs = SI_NUM_RESOURCE_SGPRS + (sel->info.uses_grid_size ? 3 : 0) +
139 (sel->info.uses_variable_block_size ? 1 : 0) +
140 sel->info.base.cs.user_data_components_amd;
141
142 /* Fast path for compute shaders - some descriptors passed via user SGPRs. */
143 /* Shader buffers in user SGPRs. */
144 for (unsigned i = 0; i < MIN2(3, sel->info.base.num_ssbos) && user_sgprs <= 12; i++) {
145 user_sgprs = align(user_sgprs, 4);
146 if (i == 0)
147 sel->cs_shaderbufs_sgpr_index = user_sgprs;
148 user_sgprs += 4;
149 sel->cs_num_shaderbufs_in_user_sgprs++;
150 }
151
152 /* Images in user SGPRs. */
153 unsigned non_fmask_images = u_bit_consecutive(0, sel->info.base.num_images);
154
155 /* Remove images with FMASK from the bitmask. We only care about the first
156 * 3 anyway, so we can take msaa_images[0] and ignore the rest.
157 */
158 if (sscreen->info.gfx_level < GFX11)
159 non_fmask_images &= ~sel->info.base.msaa_images[0];
160
161 for (unsigned i = 0; i < 3 && non_fmask_images & (1 << i); i++) {
162 unsigned num_sgprs = BITSET_TEST(sel->info.base.image_buffers, i) ? 4 : 8;
163
164 if (align(user_sgprs, num_sgprs) + num_sgprs > 16)
165 break;
166
167 user_sgprs = align(user_sgprs, num_sgprs);
168 if (i == 0)
169 sel->cs_images_sgpr_index = user_sgprs;
170 user_sgprs += num_sgprs;
171 sel->cs_num_images_in_user_sgprs++;
172 }
173 sel->cs_images_num_sgprs = user_sgprs - sel->cs_images_sgpr_index;
174 assert(user_sgprs <= 16);
175
176 unsigned char ir_sha1_cache_key[20];
177 si_get_ir_cache_key(sel, false, false, shader->wave_size, ir_sha1_cache_key);
178
179 /* Try to load the shader from the shader cache. */
180 simple_mtx_lock(&sscreen->shader_cache_mutex);
181
182 if (si_shader_cache_load_shader(sscreen, ir_sha1_cache_key, shader)) {
183 simple_mtx_unlock(&sscreen->shader_cache_mutex);
184
185 if (!si_shader_binary_upload(sscreen, shader, 0))
186 program->shader.compilation_failed = true;
187
188 si_shader_dump_stats_for_shader_db(sscreen, shader, debug);
189 si_shader_dump(sscreen, shader, debug, stderr, true);
190 } else {
191 simple_mtx_unlock(&sscreen->shader_cache_mutex);
192
193 if (!si_create_shader_variant(sscreen, compiler, &program->shader, debug)) {
194 program->shader.compilation_failed = true;
195 return;
196 }
197
198 shader->config.rsrc1 = S_00B848_VGPRS((shader->config.num_vgprs - 1) /
199 ((shader->wave_size == 32 ||
200 sscreen->info.wave64_vgpr_alloc_granularity == 8) ? 8 : 4)) |
201 S_00B848_DX10_CLAMP(1) |
202 S_00B848_MEM_ORDERED(si_shader_mem_ordered(shader)) |
203 S_00B848_WGP_MODE(sscreen->info.gfx_level >= GFX10) |
204 S_00B848_FLOAT_MODE(shader->config.float_mode);
205
206 if (sscreen->info.gfx_level < GFX10) {
207 shader->config.rsrc1 |= S_00B848_SGPRS((shader->config.num_sgprs - 1) / 8);
208 }
209
210 shader->config.rsrc2 = S_00B84C_USER_SGPR(user_sgprs) |
211 S_00B84C_SCRATCH_EN(shader->config.scratch_bytes_per_wave > 0) |
212 S_00B84C_TGID_X_EN(sel->info.uses_block_id[0]) |
213 S_00B84C_TGID_Y_EN(sel->info.uses_block_id[1]) |
214 S_00B84C_TGID_Z_EN(sel->info.uses_block_id[2]) |
215 S_00B84C_TG_SIZE_EN(sel->info.uses_subgroup_info) |
216 S_00B84C_TIDIG_COMP_CNT(sel->info.uses_thread_id[2]
217 ? 2
218 : sel->info.uses_thread_id[1] ? 1 : 0) |
219 S_00B84C_LDS_SIZE(shader->config.lds_size);
220
221 simple_mtx_lock(&sscreen->shader_cache_mutex);
222 si_shader_cache_insert_shader(sscreen, ir_sha1_cache_key, shader, true);
223 simple_mtx_unlock(&sscreen->shader_cache_mutex);
224 }
225
226 ralloc_free(sel->nir);
227 sel->nir = NULL;
228 }
229
si_create_compute_state(struct pipe_context * ctx,const struct pipe_compute_state * cso)230 static void *si_create_compute_state(struct pipe_context *ctx, const struct pipe_compute_state *cso)
231 {
232 struct si_context *sctx = (struct si_context *)ctx;
233 struct si_screen *sscreen = (struct si_screen *)ctx->screen;
234 struct si_compute *program = CALLOC_STRUCT(si_compute);
235 struct si_shader_selector *sel = &program->sel;
236
237 pipe_reference_init(&sel->base.reference, 1);
238 sel->stage = MESA_SHADER_COMPUTE;
239 sel->screen = sscreen;
240 sel->const_and_shader_buf_descriptors_index =
241 si_const_and_shader_buffer_descriptors_idx(PIPE_SHADER_COMPUTE);
242 sel->sampler_and_images_descriptors_index =
243 si_sampler_and_image_descriptors_idx(PIPE_SHADER_COMPUTE);
244 sel->info.base.shared_size = cso->req_local_mem;
245 program->shader.selector = &program->sel;
246 program->shader.wave_size = si_determine_wave_size(sscreen, &program->shader);
247 program->ir_type = cso->ir_type;
248 program->private_size = cso->req_private_mem;
249 program->input_size = cso->req_input_mem;
250
251 if (cso->ir_type != PIPE_SHADER_IR_NATIVE) {
252 if (cso->ir_type == PIPE_SHADER_IR_TGSI) {
253 program->ir_type = PIPE_SHADER_IR_NIR;
254 sel->nir = tgsi_to_nir(cso->prog, ctx->screen, true);
255 } else {
256 assert(cso->ir_type == PIPE_SHADER_IR_NIR);
257 sel->nir = (struct nir_shader *)cso->prog;
258 }
259
260 sel->compiler_ctx_state.debug = sctx->debug;
261 sel->compiler_ctx_state.is_debug_context = sctx->is_debug;
262 p_atomic_inc(&sscreen->num_shaders_created);
263
264 si_schedule_initial_compile(sctx, MESA_SHADER_COMPUTE, &sel->ready, &sel->compiler_ctx_state,
265 program, si_create_compute_state_async);
266 } else {
267 const struct pipe_binary_program_header *header;
268 header = cso->prog;
269
270 program->shader.binary.elf_size = header->num_bytes;
271 program->shader.binary.elf_buffer = malloc(header->num_bytes);
272 if (!program->shader.binary.elf_buffer) {
273 FREE(program);
274 return NULL;
275 }
276 memcpy((void *)program->shader.binary.elf_buffer, header->blob, header->num_bytes);
277
278 const amd_kernel_code_t *code_object = si_compute_get_code_object(program, 0);
279 code_object_to_config(code_object, &program->shader.config);
280
281 bool ok = si_shader_binary_upload(sctx->screen, &program->shader, 0);
282 si_shader_dump(sctx->screen, &program->shader, &sctx->debug, stderr, true);
283
284 if (!ok) {
285 fprintf(stderr, "LLVM failed to upload shader\n");
286 free((void *)program->shader.binary.elf_buffer);
287 FREE(program);
288 return NULL;
289 }
290 }
291
292 return program;
293 }
294
si_bind_compute_state(struct pipe_context * ctx,void * state)295 static void si_bind_compute_state(struct pipe_context *ctx, void *state)
296 {
297 struct si_context *sctx = (struct si_context *)ctx;
298 struct si_compute *program = (struct si_compute *)state;
299 struct si_shader_selector *sel = &program->sel;
300
301 sctx->cs_shader_state.program = program;
302 if (!program)
303 return;
304
305 /* Wait because we need active slot usage masks. */
306 if (program->ir_type != PIPE_SHADER_IR_NATIVE)
307 util_queue_fence_wait(&sel->ready);
308
309 si_set_active_descriptors(sctx,
310 SI_DESCS_FIRST_COMPUTE + SI_SHADER_DESCS_CONST_AND_SHADER_BUFFERS,
311 sel->active_const_and_shader_buffers);
312 si_set_active_descriptors(sctx, SI_DESCS_FIRST_COMPUTE + SI_SHADER_DESCS_SAMPLERS_AND_IMAGES,
313 sel->active_samplers_and_images);
314
315 sctx->compute_shaderbuf_sgprs_dirty = true;
316 sctx->compute_image_sgprs_dirty = true;
317
318 if (unlikely((sctx->screen->debug_flags & DBG(SQTT)) && sctx->thread_trace)) {
319 uint32_t pipeline_code_hash = _mesa_hash_data_with_seed(
320 program->shader.binary.elf_buffer,
321 program->shader.binary.elf_size,
322 0);
323 uint64_t base_address = program->shader.bo->gpu_address;
324
325 struct ac_thread_trace_data *thread_trace_data = sctx->thread_trace;
326 if (!si_sqtt_pipeline_is_registered(thread_trace_data, pipeline_code_hash)) {
327 si_sqtt_register_pipeline(sctx, pipeline_code_hash, base_address, true);
328 }
329
330 si_sqtt_describe_pipeline_bind(sctx, pipeline_code_hash, 1);
331 }
332 }
333
si_set_global_binding(struct pipe_context * ctx,unsigned first,unsigned n,struct pipe_resource ** resources,uint32_t ** handles)334 static void si_set_global_binding(struct pipe_context *ctx, unsigned first, unsigned n,
335 struct pipe_resource **resources, uint32_t **handles)
336 {
337 unsigned i;
338 struct si_context *sctx = (struct si_context *)ctx;
339 struct si_compute *program = sctx->cs_shader_state.program;
340
341 if (first + n > program->max_global_buffers) {
342 unsigned old_max = program->max_global_buffers;
343 program->max_global_buffers = first + n;
344 program->global_buffers = realloc(
345 program->global_buffers, program->max_global_buffers * sizeof(program->global_buffers[0]));
346 if (!program->global_buffers) {
347 fprintf(stderr, "radeonsi: failed to allocate compute global_buffers\n");
348 return;
349 }
350
351 memset(&program->global_buffers[old_max], 0,
352 (program->max_global_buffers - old_max) * sizeof(program->global_buffers[0]));
353 }
354
355 if (!resources) {
356 for (i = 0; i < n; i++) {
357 pipe_resource_reference(&program->global_buffers[first + i], NULL);
358 }
359 return;
360 }
361
362 for (i = 0; i < n; i++) {
363 uint64_t va;
364 uint32_t offset;
365 pipe_resource_reference(&program->global_buffers[first + i], resources[i]);
366 va = si_resource(resources[i])->gpu_address;
367 offset = util_le32_to_cpu(*handles[i]);
368 va += offset;
369 va = util_cpu_to_le64(va);
370 memcpy(handles[i], &va, sizeof(va));
371 }
372 }
373
si_emit_initial_compute_regs(struct si_context * sctx,struct radeon_cmdbuf * cs)374 void si_emit_initial_compute_regs(struct si_context *sctx, struct radeon_cmdbuf *cs)
375 {
376 const struct radeon_info *info = &sctx->screen->info;
377
378 radeon_begin(cs);
379 radeon_set_sh_reg(R_00B834_COMPUTE_PGM_HI,
380 S_00B834_DATA(sctx->screen->info.address32_hi >> 8));
381
382 radeon_set_sh_reg_seq(R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0, 2);
383 /* R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE0 / SE1,
384 * renamed COMPUTE_DESTINATION_EN_SEn on gfx10. */
385 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
386 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
387
388 if (sctx->gfx_level == GFX6) {
389 /* This register has been moved to R_00CD20_COMPUTE_MAX_WAVE_ID
390 * and is now per pipe, so it should be handled in the
391 * kernel if we want to use something other than the default value.
392 *
393 * TODO: This should be:
394 * (number of compute units) * 4 * (waves per simd) - 1
395 */
396 radeon_set_sh_reg(R_00B82C_COMPUTE_MAX_WAVE_ID, 0x190 /* Default value */);
397 radeon_set_config_reg(R_00950C_TA_CS_BC_BASE_ADDR, sctx->border_color_buffer->gpu_address >> 8);
398 }
399
400 if (sctx->gfx_level >= GFX7) {
401 /* Also set R_00B858_COMPUTE_STATIC_THREAD_MGMT_SE2 / SE3 */
402 radeon_set_sh_reg_seq(R_00B864_COMPUTE_STATIC_THREAD_MGMT_SE2, 2);
403 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
404 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
405
406 /* Disable profiling on compute queues. */
407 if (cs != &sctx->gfx_cs || !sctx->screen->info.has_graphics) {
408 radeon_set_sh_reg(R_00B82C_COMPUTE_PERFCOUNT_ENABLE, 0);
409 radeon_set_sh_reg(R_00B878_COMPUTE_THREAD_TRACE_ENABLE, 0);
410 }
411
412 /* Set the pointer to border colors. */
413 /* Aldebaran doesn't support border colors. */
414 if (sctx->border_color_buffer) {
415 uint64_t bc_va = sctx->border_color_buffer->gpu_address;
416
417 radeon_set_uconfig_reg_seq(R_030E00_TA_CS_BC_BASE_ADDR, 2, false);
418 radeon_emit(bc_va >> 8); /* R_030E00_TA_CS_BC_BASE_ADDR */
419 radeon_emit(S_030E04_ADDRESS(bc_va >> 40)); /* R_030E04_TA_CS_BC_BASE_ADDR_HI */
420 }
421 }
422
423 /* cs_preamble_state initializes this for the gfx queue, so only do this
424 * if we are on a compute queue.
425 */
426 if (sctx->gfx_level >= GFX9 && sctx->gfx_level < GFX11 &&
427 (cs != &sctx->gfx_cs || !sctx->screen->info.has_graphics)) {
428 radeon_set_uconfig_reg(R_0301EC_CP_COHER_START_DELAY,
429 sctx->gfx_level >= GFX10 ? 0x20 : 0);
430 }
431
432 if (!info->has_graphics && info->family >= CHIP_ARCTURUS) {
433 radeon_set_sh_reg_seq(R_00B894_COMPUTE_STATIC_THREAD_MGMT_SE4, 4);
434 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
435 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
436 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
437 radeon_emit(S_00B858_SH0_CU_EN(info->spi_cu_en) | S_00B858_SH1_CU_EN(info->spi_cu_en));
438 }
439
440 if (sctx->gfx_level >= GFX10) {
441 radeon_set_sh_reg_seq(R_00B890_COMPUTE_USER_ACCUM_0, 4);
442 radeon_emit(0); /* R_00B890_COMPUTE_USER_ACCUM_0 */
443 radeon_emit(0); /* R_00B894_COMPUTE_USER_ACCUM_1 */
444 radeon_emit(0); /* R_00B898_COMPUTE_USER_ACCUM_2 */
445 radeon_emit(0); /* R_00B89C_COMPUTE_USER_ACCUM_3 */
446
447 radeon_set_sh_reg(R_00B9F4_COMPUTE_DISPATCH_TUNNEL, 0);
448
449 if (sctx->gfx_level < GFX11)
450 radeon_set_sh_reg(R_00B8A0_COMPUTE_PGM_RSRC3, 0);
451 }
452
453 if (sctx->gfx_level >= GFX11) {
454 radeon_set_sh_reg_seq(R_00B8AC_COMPUTE_STATIC_THREAD_MGMT_SE4, 4);
455 radeon_emit(S_00B8AC_SA0_CU_EN(info->spi_cu_en) | S_00B8AC_SA1_CU_EN(info->spi_cu_en)); /* SE4 */
456 radeon_emit(S_00B8AC_SA0_CU_EN(info->spi_cu_en) | S_00B8AC_SA1_CU_EN(info->spi_cu_en)); /* SE5 */
457 radeon_emit(S_00B8AC_SA0_CU_EN(info->spi_cu_en) | S_00B8AC_SA1_CU_EN(info->spi_cu_en)); /* SE6 */
458 radeon_emit(S_00B8AC_SA0_CU_EN(info->spi_cu_en) | S_00B8AC_SA1_CU_EN(info->spi_cu_en)); /* SE7 */
459
460 radeon_set_sh_reg(R_00B8BC_COMPUTE_DISPATCH_INTERLEAVE, 64);
461 }
462
463 radeon_end();
464 }
465
si_setup_compute_scratch_buffer(struct si_context * sctx,struct si_shader * shader)466 static bool si_setup_compute_scratch_buffer(struct si_context *sctx, struct si_shader *shader)
467 {
468 uint64_t scratch_bo_size, scratch_needed;
469 scratch_bo_size = 0;
470 scratch_needed = sctx->max_seen_compute_scratch_bytes_per_wave * sctx->screen->info.max_scratch_waves;
471 if (sctx->compute_scratch_buffer)
472 scratch_bo_size = sctx->compute_scratch_buffer->b.b.width0;
473
474 if (scratch_bo_size < scratch_needed) {
475 si_resource_reference(&sctx->compute_scratch_buffer, NULL);
476
477 sctx->compute_scratch_buffer =
478 si_aligned_buffer_create(&sctx->screen->b,
479 PIPE_RESOURCE_FLAG_UNMAPPABLE | SI_RESOURCE_FLAG_DRIVER_INTERNAL |
480 SI_RESOURCE_FLAG_DISCARDABLE,
481 PIPE_USAGE_DEFAULT,
482 scratch_needed, sctx->screen->info.pte_fragment_size);
483
484 if (!sctx->compute_scratch_buffer)
485 return false;
486 }
487
488 if (sctx->compute_scratch_buffer != shader->scratch_bo && scratch_needed) {
489 if (sctx->gfx_level < GFX11) {
490 uint64_t scratch_va = sctx->compute_scratch_buffer->gpu_address;
491
492 if (!si_shader_binary_upload(sctx->screen, shader, scratch_va))
493 return false;
494 }
495 si_resource_reference(&shader->scratch_bo, sctx->compute_scratch_buffer);
496 }
497
498 return true;
499 }
500
si_switch_compute_shader(struct si_context * sctx,struct si_compute * program,struct si_shader * shader,const amd_kernel_code_t * code_object,unsigned offset,bool * prefetch)501 static bool si_switch_compute_shader(struct si_context *sctx, struct si_compute *program,
502 struct si_shader *shader, const amd_kernel_code_t *code_object,
503 unsigned offset, bool *prefetch)
504 {
505 struct radeon_cmdbuf *cs = &sctx->gfx_cs;
506 struct ac_shader_config inline_config = {0};
507 struct ac_shader_config *config;
508 uint64_t shader_va;
509
510 *prefetch = false;
511
512 if (sctx->cs_shader_state.emitted_program == program && sctx->cs_shader_state.offset == offset)
513 return true;
514
515 if (program->ir_type != PIPE_SHADER_IR_NATIVE) {
516 config = &shader->config;
517 } else {
518 unsigned lds_blocks;
519
520 config = &inline_config;
521 code_object_to_config(code_object, config);
522
523 lds_blocks = config->lds_size;
524 /* XXX: We are over allocating LDS. For GFX6, the shader reports
525 * LDS in blocks of 256 bytes, so if there are 4 bytes lds
526 * allocated in the shader and 4 bytes allocated by the state
527 * tracker, then we will set LDS_SIZE to 512 bytes rather than 256.
528 */
529 if (sctx->gfx_level <= GFX6) {
530 lds_blocks += align(program->sel.info.base.shared_size, 256) >> 8;
531 } else {
532 lds_blocks += align(program->sel.info.base.shared_size, 512) >> 9;
533 }
534
535 /* TODO: use si_multiwave_lds_size_workaround */
536 assert(lds_blocks <= 0xFF);
537
538 config->rsrc2 &= C_00B84C_LDS_SIZE;
539 config->rsrc2 |= S_00B84C_LDS_SIZE(lds_blocks);
540 }
541
542 unsigned tmpring_size;
543 ac_get_scratch_tmpring_size(&sctx->screen->info,
544 config->scratch_bytes_per_wave,
545 &sctx->max_seen_compute_scratch_bytes_per_wave, &tmpring_size);
546
547 if (!si_setup_compute_scratch_buffer(sctx, shader))
548 return false;
549
550 if (shader->scratch_bo) {
551 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, shader->scratch_bo,
552 RADEON_USAGE_READWRITE | RADEON_PRIO_SCRATCH_BUFFER);
553 }
554
555 shader_va = shader->bo->gpu_address + offset;
556 if (program->ir_type == PIPE_SHADER_IR_NATIVE) {
557 /* Shader code is placed after the amd_kernel_code_t
558 * struct. */
559 shader_va += sizeof(amd_kernel_code_t);
560 }
561
562 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, shader->bo,
563 RADEON_USAGE_READ | RADEON_PRIO_SHADER_BINARY);
564
565 radeon_begin(cs);
566 radeon_set_sh_reg(R_00B830_COMPUTE_PGM_LO, shader_va >> 8);
567
568 if (sctx->gfx_level >= GFX11) {
569 radeon_set_sh_reg(R_00B8A0_COMPUTE_PGM_RSRC3,
570 S_00B8A0_INST_PREF_SIZE(si_get_shader_prefetch_size(shader)));
571 }
572
573 if (sctx->gfx_level >= GFX11 && shader->scratch_bo) {
574 radeon_set_sh_reg_seq(R_00B840_COMPUTE_DISPATCH_SCRATCH_BASE_LO, 4);
575 radeon_emit(sctx->compute_scratch_buffer->gpu_address >> 8);
576 radeon_emit(sctx->compute_scratch_buffer->gpu_address >> 40);
577 } else {
578 radeon_set_sh_reg_seq(R_00B848_COMPUTE_PGM_RSRC1, 2);
579 }
580
581 radeon_emit(config->rsrc1);
582 radeon_emit(config->rsrc2);
583
584 COMPUTE_DBG(sctx->screen,
585 "COMPUTE_PGM_RSRC1: 0x%08x "
586 "COMPUTE_PGM_RSRC2: 0x%08x\n",
587 config->rsrc1, config->rsrc2);
588
589 radeon_set_sh_reg(R_00B860_COMPUTE_TMPRING_SIZE, tmpring_size);
590 radeon_end();
591
592 sctx->cs_shader_state.emitted_program = program;
593 sctx->cs_shader_state.offset = offset;
594
595 *prefetch = true;
596 return true;
597 }
598
setup_scratch_rsrc_user_sgprs(struct si_context * sctx,const amd_kernel_code_t * code_object,unsigned user_sgpr)599 static void setup_scratch_rsrc_user_sgprs(struct si_context *sctx,
600 const amd_kernel_code_t *code_object, unsigned user_sgpr)
601 {
602 struct radeon_cmdbuf *cs = &sctx->gfx_cs;
603 uint64_t scratch_va = sctx->compute_scratch_buffer->gpu_address;
604
605 unsigned max_private_element_size =
606 AMD_HSA_BITS_GET(code_object->code_properties, AMD_CODE_PROPERTY_PRIVATE_ELEMENT_SIZE);
607
608 uint32_t scratch_dword0 = scratch_va & 0xffffffff;
609 uint32_t scratch_dword1 = S_008F04_BASE_ADDRESS_HI(scratch_va >> 32);
610
611 if (sctx->gfx_level >= GFX11)
612 scratch_dword1 |= S_008F04_SWIZZLE_ENABLE_GFX11(1);
613 else
614 scratch_dword1 |= S_008F04_SWIZZLE_ENABLE_GFX6(1);
615
616 /* Disable address clamping */
617 uint32_t scratch_dword2 = 0xffffffff;
618 uint32_t scratch_dword3 = S_008F0C_INDEX_STRIDE(3) | S_008F0C_ADD_TID_ENABLE(1);
619
620 if (sctx->gfx_level >= GFX9) {
621 assert(max_private_element_size == 1); /* only 4 bytes on GFX9 */
622 } else {
623 scratch_dword3 |= S_008F0C_ELEMENT_SIZE(max_private_element_size);
624
625 if (sctx->gfx_level < GFX8) {
626 /* BUF_DATA_FORMAT is ignored, but it cannot be
627 * BUF_DATA_FORMAT_INVALID. */
628 scratch_dword3 |= S_008F0C_DATA_FORMAT(V_008F0C_BUF_DATA_FORMAT_8);
629 }
630 }
631
632 radeon_begin(cs);
633 radeon_set_sh_reg_seq(R_00B900_COMPUTE_USER_DATA_0 + (user_sgpr * 4), 4);
634 radeon_emit(scratch_dword0);
635 radeon_emit(scratch_dword1);
636 radeon_emit(scratch_dword2);
637 radeon_emit(scratch_dword3);
638 radeon_end();
639 }
640
si_setup_user_sgprs_co_v2(struct si_context * sctx,const amd_kernel_code_t * code_object,const struct pipe_grid_info * info,uint64_t kernel_args_va)641 static void si_setup_user_sgprs_co_v2(struct si_context *sctx, const amd_kernel_code_t *code_object,
642 const struct pipe_grid_info *info, uint64_t kernel_args_va)
643 {
644 struct si_compute *program = sctx->cs_shader_state.program;
645 struct radeon_cmdbuf *cs = &sctx->gfx_cs;
646
647 static const enum amd_code_property_mask_t workgroup_count_masks[] = {
648 AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_X,
649 AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Y,
650 AMD_CODE_PROPERTY_ENABLE_SGPR_GRID_WORKGROUP_COUNT_Z};
651
652 unsigned i, user_sgpr = 0;
653 if (AMD_HSA_BITS_GET(code_object->code_properties,
654 AMD_CODE_PROPERTY_ENABLE_SGPR_PRIVATE_SEGMENT_BUFFER)) {
655 if (code_object->workitem_private_segment_byte_size > 0) {
656 setup_scratch_rsrc_user_sgprs(sctx, code_object, user_sgpr);
657 }
658 user_sgpr += 4;
659 }
660
661 radeon_begin(cs);
662
663 if (AMD_HSA_BITS_GET(code_object->code_properties, AMD_CODE_PROPERTY_ENABLE_SGPR_DISPATCH_PTR)) {
664 struct dispatch_packet dispatch;
665 unsigned dispatch_offset;
666 struct si_resource *dispatch_buf = NULL;
667 uint64_t dispatch_va;
668
669 /* Upload dispatch ptr */
670 memset(&dispatch, 0, sizeof(dispatch));
671
672 dispatch.workgroup_size_x = util_cpu_to_le16(info->block[0]);
673 dispatch.workgroup_size_y = util_cpu_to_le16(info->block[1]);
674 dispatch.workgroup_size_z = util_cpu_to_le16(info->block[2]);
675
676 dispatch.grid_size_x = util_cpu_to_le32(info->grid[0] * info->block[0]);
677 dispatch.grid_size_y = util_cpu_to_le32(info->grid[1] * info->block[1]);
678 dispatch.grid_size_z = util_cpu_to_le32(info->grid[2] * info->block[2]);
679
680 dispatch.private_segment_size = util_cpu_to_le32(program->private_size);
681 dispatch.group_segment_size = util_cpu_to_le32(program->sel.info.base.shared_size);
682
683 dispatch.kernarg_address = util_cpu_to_le64(kernel_args_va);
684
685 u_upload_data(sctx->b.const_uploader, 0, sizeof(dispatch), 256, &dispatch, &dispatch_offset,
686 (struct pipe_resource **)&dispatch_buf);
687
688 if (!dispatch_buf) {
689 fprintf(stderr, "Error: Failed to allocate dispatch "
690 "packet.");
691 }
692 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, dispatch_buf,
693 RADEON_USAGE_READ | RADEON_PRIO_CONST_BUFFER);
694
695 dispatch_va = dispatch_buf->gpu_address + dispatch_offset;
696
697 radeon_set_sh_reg_seq(R_00B900_COMPUTE_USER_DATA_0 + (user_sgpr * 4), 2);
698 radeon_emit(dispatch_va);
699 radeon_emit(S_008F04_BASE_ADDRESS_HI(dispatch_va >> 32) | S_008F04_STRIDE(0));
700
701 si_resource_reference(&dispatch_buf, NULL);
702 user_sgpr += 2;
703 }
704
705 if (AMD_HSA_BITS_GET(code_object->code_properties,
706 AMD_CODE_PROPERTY_ENABLE_SGPR_KERNARG_SEGMENT_PTR)) {
707 radeon_set_sh_reg_seq(R_00B900_COMPUTE_USER_DATA_0 + (user_sgpr * 4), 2);
708 radeon_emit(kernel_args_va);
709 radeon_emit(S_008F04_BASE_ADDRESS_HI(kernel_args_va >> 32) | S_008F04_STRIDE(0));
710 user_sgpr += 2;
711 }
712
713 for (i = 0; i < 3 && user_sgpr < 16; i++) {
714 if (code_object->code_properties & workgroup_count_masks[i]) {
715 radeon_set_sh_reg_seq(R_00B900_COMPUTE_USER_DATA_0 + (user_sgpr * 4), 1);
716 radeon_emit(info->grid[i]);
717 user_sgpr += 1;
718 }
719 }
720 radeon_end();
721 }
722
si_upload_compute_input(struct si_context * sctx,const amd_kernel_code_t * code_object,const struct pipe_grid_info * info)723 static bool si_upload_compute_input(struct si_context *sctx, const amd_kernel_code_t *code_object,
724 const struct pipe_grid_info *info)
725 {
726 struct si_compute *program = sctx->cs_shader_state.program;
727 struct si_resource *input_buffer = NULL;
728 uint32_t kernel_args_offset = 0;
729 uint32_t *kernel_args;
730 void *kernel_args_ptr;
731 uint64_t kernel_args_va;
732
733 u_upload_alloc(sctx->b.const_uploader, 0, program->input_size,
734 sctx->screen->info.tcc_cache_line_size, &kernel_args_offset,
735 (struct pipe_resource **)&input_buffer, &kernel_args_ptr);
736
737 if (unlikely(!kernel_args_ptr))
738 return false;
739
740 kernel_args = (uint32_t *)kernel_args_ptr;
741 kernel_args_va = input_buffer->gpu_address + kernel_args_offset;
742
743 memcpy(kernel_args, info->input, program->input_size);
744
745 for (unsigned i = 0; i < program->input_size / 4; i++) {
746 COMPUTE_DBG(sctx->screen, "input %u : %u\n", i, kernel_args[i]);
747 }
748
749 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, input_buffer,
750 RADEON_USAGE_READ | RADEON_PRIO_CONST_BUFFER);
751
752 si_setup_user_sgprs_co_v2(sctx, code_object, info, kernel_args_va);
753 si_resource_reference(&input_buffer, NULL);
754 return true;
755 }
756
si_setup_nir_user_data(struct si_context * sctx,const struct pipe_grid_info * info)757 static void si_setup_nir_user_data(struct si_context *sctx, const struct pipe_grid_info *info)
758 {
759 struct si_compute *program = sctx->cs_shader_state.program;
760 struct si_shader_selector *sel = &program->sel;
761 struct radeon_cmdbuf *cs = &sctx->gfx_cs;
762 unsigned grid_size_reg = R_00B900_COMPUTE_USER_DATA_0 + 4 * SI_NUM_RESOURCE_SGPRS;
763 unsigned block_size_reg = grid_size_reg +
764 /* 12 bytes = 3 dwords. */
765 12 * sel->info.uses_grid_size;
766 unsigned cs_user_data_reg = block_size_reg + 4 * program->sel.info.uses_variable_block_size;
767
768 radeon_begin(cs);
769
770 if (sel->info.uses_grid_size) {
771 if (info->indirect) {
772 radeon_end();
773
774 for (unsigned i = 0; i < 3; ++i) {
775 si_cp_copy_data(sctx, &sctx->gfx_cs, COPY_DATA_REG, NULL, (grid_size_reg >> 2) + i,
776 COPY_DATA_SRC_MEM, si_resource(info->indirect),
777 info->indirect_offset + 4 * i);
778 }
779 radeon_begin_again(cs);
780 } else {
781 radeon_set_sh_reg_seq(grid_size_reg, 3);
782 radeon_emit(info->grid[0]);
783 radeon_emit(info->grid[1]);
784 radeon_emit(info->grid[2]);
785 }
786 }
787
788 if (sel->info.uses_variable_block_size) {
789 radeon_set_sh_reg(block_size_reg,
790 info->block[0] | (info->block[1] << 10) | (info->block[2] << 20));
791 }
792
793 if (sel->info.base.cs.user_data_components_amd) {
794 radeon_set_sh_reg_seq(cs_user_data_reg, sel->info.base.cs.user_data_components_amd);
795 radeon_emit_array(sctx->cs_user_data, sel->info.base.cs.user_data_components_amd);
796 }
797 radeon_end();
798 }
799
si_emit_dispatch_packets(struct si_context * sctx,const struct pipe_grid_info * info)800 static void si_emit_dispatch_packets(struct si_context *sctx, const struct pipe_grid_info *info)
801 {
802 struct si_screen *sscreen = sctx->screen;
803 struct radeon_cmdbuf *cs = &sctx->gfx_cs;
804 bool render_cond_bit = sctx->render_cond_enabled;
805 unsigned threads_per_threadgroup = info->block[0] * info->block[1] * info->block[2];
806 unsigned waves_per_threadgroup =
807 DIV_ROUND_UP(threads_per_threadgroup, sctx->cs_shader_state.program->shader.wave_size);
808 unsigned threadgroups_per_cu = 1;
809
810 if (sctx->gfx_level >= GFX10 && waves_per_threadgroup == 1)
811 threadgroups_per_cu = 2;
812
813 if (unlikely(sctx->thread_trace_enabled)) {
814 si_write_event_with_dims_marker(sctx, &sctx->gfx_cs,
815 info->indirect ? EventCmdDispatchIndirect : EventCmdDispatch,
816 info->grid[0], info->grid[1], info->grid[2]);
817 }
818
819 radeon_begin(cs);
820 radeon_set_sh_reg(
821 R_00B854_COMPUTE_RESOURCE_LIMITS,
822 ac_get_compute_resource_limits(&sscreen->info, waves_per_threadgroup,
823 sctx->cs_max_waves_per_sh, threadgroups_per_cu));
824
825 unsigned dispatch_initiator = S_00B800_COMPUTE_SHADER_EN(1) | S_00B800_FORCE_START_AT_000(1) |
826 /* If the KMD allows it (there is a KMD hw register for it),
827 * allow launching waves out-of-order. (same as Vulkan) */
828 S_00B800_ORDER_MODE(sctx->gfx_level >= GFX7) |
829 S_00B800_CS_W32_EN(sctx->cs_shader_state.program->shader.wave_size == 32);
830
831 const uint *last_block = info->last_block;
832 bool partial_block_en = last_block[0] || last_block[1] || last_block[2];
833
834 radeon_set_sh_reg_seq(R_00B81C_COMPUTE_NUM_THREAD_X, 3);
835
836 if (partial_block_en) {
837 unsigned partial[3];
838
839 /* If no partial_block, these should be an entire block size, not 0. */
840 partial[0] = last_block[0] ? last_block[0] : info->block[0];
841 partial[1] = last_block[1] ? last_block[1] : info->block[1];
842 partial[2] = last_block[2] ? last_block[2] : info->block[2];
843
844 radeon_emit(S_00B81C_NUM_THREAD_FULL(info->block[0]) |
845 S_00B81C_NUM_THREAD_PARTIAL(partial[0]));
846 radeon_emit(S_00B820_NUM_THREAD_FULL(info->block[1]) |
847 S_00B820_NUM_THREAD_PARTIAL(partial[1]));
848 radeon_emit(S_00B824_NUM_THREAD_FULL(info->block[2]) |
849 S_00B824_NUM_THREAD_PARTIAL(partial[2]));
850
851 dispatch_initiator |= S_00B800_PARTIAL_TG_EN(1);
852 } else {
853 radeon_emit(S_00B81C_NUM_THREAD_FULL(info->block[0]));
854 radeon_emit(S_00B820_NUM_THREAD_FULL(info->block[1]));
855 radeon_emit(S_00B824_NUM_THREAD_FULL(info->block[2]));
856 }
857
858 if (info->indirect) {
859 uint64_t base_va = si_resource(info->indirect)->gpu_address;
860
861 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, si_resource(info->indirect),
862 RADEON_USAGE_READ | RADEON_PRIO_DRAW_INDIRECT);
863
864 radeon_emit(PKT3(PKT3_SET_BASE, 2, 0) | PKT3_SHADER_TYPE_S(1));
865 radeon_emit(1);
866 radeon_emit(base_va);
867 radeon_emit(base_va >> 32);
868
869 radeon_emit(PKT3(PKT3_DISPATCH_INDIRECT, 1, render_cond_bit) | PKT3_SHADER_TYPE_S(1));
870 radeon_emit(info->indirect_offset);
871 radeon_emit(dispatch_initiator);
872 } else {
873 radeon_emit(PKT3(PKT3_DISPATCH_DIRECT, 3, render_cond_bit) | PKT3_SHADER_TYPE_S(1));
874 radeon_emit(info->grid[0]);
875 radeon_emit(info->grid[1]);
876 radeon_emit(info->grid[2]);
877 radeon_emit(dispatch_initiator);
878 }
879
880 if (unlikely(sctx->thread_trace_enabled && sctx->gfx_level >= GFX9)) {
881 radeon_emit(PKT3(PKT3_EVENT_WRITE, 0, 0));
882 radeon_emit(EVENT_TYPE(V_028A90_THREAD_TRACE_MARKER) | EVENT_INDEX(0));
883 }
884 radeon_end();
885 }
886
si_check_needs_implicit_sync(struct si_context * sctx)887 static bool si_check_needs_implicit_sync(struct si_context *sctx)
888 {
889 /* If the compute shader is going to read from a texture/image written by a
890 * previous draw, we must wait for its completion before continuing.
891 * Buffers and image stores (from the draw) are not taken into consideration
892 * because that's the app responsibility.
893 *
894 * The OpenGL 4.6 spec says:
895 *
896 * buffer object and texture stores performed by shaders are not
897 * automatically synchronized
898 *
899 * TODO: Bindless textures are not handled, and thus are not synchronized.
900 */
901 struct si_shader_info *info = &sctx->cs_shader_state.program->sel.info;
902 struct si_samplers *samplers = &sctx->samplers[PIPE_SHADER_COMPUTE];
903 unsigned mask = samplers->enabled_mask & info->base.textures_used[0];
904
905 while (mask) {
906 int i = u_bit_scan(&mask);
907 struct si_sampler_view *sview = (struct si_sampler_view *)samplers->views[i];
908
909 struct si_resource *res = si_resource(sview->base.texture);
910 if (sctx->ws->cs_is_buffer_referenced(&sctx->gfx_cs, res->buf,
911 RADEON_USAGE_NEEDS_IMPLICIT_SYNC))
912 return true;
913 }
914
915 struct si_images *images = &sctx->images[PIPE_SHADER_COMPUTE];
916 mask = u_bit_consecutive(0, info->base.num_images) & images->enabled_mask;
917
918 while (mask) {
919 int i = u_bit_scan(&mask);
920 struct pipe_image_view *sview = &images->views[i];
921
922 struct si_resource *res = si_resource(sview->resource);
923 if (sctx->ws->cs_is_buffer_referenced(&sctx->gfx_cs, res->buf,
924 RADEON_USAGE_NEEDS_IMPLICIT_SYNC))
925 return true;
926 }
927 return false;
928 }
929
si_launch_grid(struct pipe_context * ctx,const struct pipe_grid_info * info)930 static void si_launch_grid(struct pipe_context *ctx, const struct pipe_grid_info *info)
931 {
932 struct si_context *sctx = (struct si_context *)ctx;
933 struct si_screen *sscreen = sctx->screen;
934 struct si_compute *program = sctx->cs_shader_state.program;
935 const amd_kernel_code_t *code_object = si_compute_get_code_object(program, info->pc);
936 int i;
937 bool cs_regalloc_hang = sscreen->info.has_cs_regalloc_hang_bug &&
938 info->block[0] * info->block[1] * info->block[2] > 256;
939
940 if (cs_regalloc_hang)
941 sctx->flags |= SI_CONTEXT_PS_PARTIAL_FLUSH | SI_CONTEXT_CS_PARTIAL_FLUSH;
942
943 if (program->ir_type != PIPE_SHADER_IR_NATIVE && program->shader.compilation_failed)
944 return;
945
946 si_check_dirty_buffers_textures(sctx);
947
948 if (sctx->has_graphics) {
949 if (sctx->last_num_draw_calls != sctx->num_draw_calls) {
950 si_update_fb_dirtiness_after_rendering(sctx);
951 sctx->last_num_draw_calls = sctx->num_draw_calls;
952
953 if (sctx->force_cb_shader_coherent || si_check_needs_implicit_sync(sctx))
954 si_make_CB_shader_coherent(sctx, 0,
955 sctx->framebuffer.CB_has_shader_readable_metadata,
956 sctx->framebuffer.all_DCC_pipe_aligned);
957 }
958
959 si_decompress_textures(sctx, 1 << PIPE_SHADER_COMPUTE);
960 }
961
962 /* Add buffer sizes for memory checking in need_cs_space. */
963 si_context_add_resource_size(sctx, &program->shader.bo->b.b);
964 /* TODO: add the scratch buffer */
965
966 if (info->indirect) {
967 si_context_add_resource_size(sctx, info->indirect);
968
969 /* Indirect buffers use TC L2 on GFX9, but not older hw. */
970 if (sctx->gfx_level <= GFX8 && si_resource(info->indirect)->TC_L2_dirty) {
971 sctx->flags |= SI_CONTEXT_WB_L2;
972 si_resource(info->indirect)->TC_L2_dirty = false;
973 }
974 }
975
976 si_need_gfx_cs_space(sctx, 0);
977
978 /* If we're using a secure context, determine if cs must be secure or not */
979 if (unlikely(radeon_uses_secure_bos(sctx->ws))) {
980 bool secure = si_compute_resources_check_encrypted(sctx);
981 if (secure != sctx->ws->cs_is_secure(&sctx->gfx_cs)) {
982 si_flush_gfx_cs(sctx, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW |
983 RADEON_FLUSH_TOGGLE_SECURE_SUBMISSION,
984 NULL);
985 }
986 }
987
988 if (sctx->bo_list_add_all_compute_resources)
989 si_compute_resources_add_all_to_bo_list(sctx);
990
991 if (!sctx->cs_shader_state.initialized) {
992 si_emit_initial_compute_regs(sctx, &sctx->gfx_cs);
993
994 sctx->cs_shader_state.emitted_program = NULL;
995 sctx->cs_shader_state.initialized = true;
996 }
997
998 /* First emit registers. */
999 bool prefetch;
1000 if (!si_switch_compute_shader(sctx, program, &program->shader, code_object, info->pc, &prefetch))
1001 return;
1002
1003 si_upload_compute_shader_descriptors(sctx);
1004 si_emit_compute_shader_pointers(sctx);
1005
1006 if (program->ir_type == PIPE_SHADER_IR_NATIVE &&
1007 unlikely(!si_upload_compute_input(sctx, code_object, info)))
1008 return;
1009
1010 /* Global buffers */
1011 for (i = 0; i < program->max_global_buffers; i++) {
1012 struct si_resource *buffer = si_resource(program->global_buffers[i]);
1013 if (!buffer) {
1014 continue;
1015 }
1016 radeon_add_to_buffer_list(sctx, &sctx->gfx_cs, buffer,
1017 RADEON_USAGE_READWRITE | RADEON_PRIO_SHADER_RW_BUFFER);
1018 }
1019
1020 /* Registers that are not read from memory should be set before this: */
1021 if (sctx->flags)
1022 sctx->emit_cache_flush(sctx, &sctx->gfx_cs);
1023
1024 if (sctx->has_graphics && si_is_atom_dirty(sctx, &sctx->atoms.s.render_cond)) {
1025 sctx->atoms.s.render_cond.emit(sctx);
1026 si_set_atom_dirty(sctx, &sctx->atoms.s.render_cond, false);
1027 }
1028
1029 /* Prefetch the compute shader to L2. */
1030 if (sctx->gfx_level >= GFX7 && prefetch)
1031 si_cp_dma_prefetch(sctx, &program->shader.bo->b.b, 0, program->shader.bo->b.b.width0);
1032
1033 if (program->ir_type != PIPE_SHADER_IR_NATIVE)
1034 si_setup_nir_user_data(sctx, info);
1035
1036 si_emit_dispatch_packets(sctx, info);
1037
1038 if (unlikely(sctx->current_saved_cs)) {
1039 si_trace_emit(sctx);
1040 si_log_compute_state(sctx, sctx->log);
1041 }
1042
1043 /* Mark displayable DCC as dirty for bound images. */
1044 unsigned display_dcc_store_mask = sctx->images[PIPE_SHADER_COMPUTE].display_dcc_store_mask &
1045 BITFIELD_MASK(program->sel.info.base.num_images);
1046 while (display_dcc_store_mask) {
1047 struct si_texture *tex = (struct si_texture *)
1048 sctx->images[PIPE_SHADER_COMPUTE].views[u_bit_scan(&display_dcc_store_mask)].resource;
1049
1050 si_mark_display_dcc_dirty(sctx, tex);
1051 }
1052
1053 /* TODO: Bindless images don't set displayable_dcc_dirty after image stores. */
1054
1055 sctx->compute_is_busy = true;
1056 sctx->num_compute_calls++;
1057
1058 if (cs_regalloc_hang)
1059 sctx->flags |= SI_CONTEXT_CS_PARTIAL_FLUSH;
1060 }
1061
si_destroy_compute(struct si_compute * program)1062 void si_destroy_compute(struct si_compute *program)
1063 {
1064 struct si_shader_selector *sel = &program->sel;
1065
1066 if (program->ir_type != PIPE_SHADER_IR_NATIVE) {
1067 util_queue_drop_job(&sel->screen->shader_compiler_queue, &sel->ready);
1068 util_queue_fence_destroy(&sel->ready);
1069 }
1070
1071 for (unsigned i = 0; i < program->max_global_buffers; i++)
1072 pipe_resource_reference(&program->global_buffers[i], NULL);
1073 FREE(program->global_buffers);
1074
1075 si_shader_destroy(&program->shader);
1076 ralloc_free(program->sel.nir);
1077 FREE(program);
1078 }
1079
si_delete_compute_state(struct pipe_context * ctx,void * state)1080 static void si_delete_compute_state(struct pipe_context *ctx, void *state)
1081 {
1082 struct si_compute *program = (struct si_compute *)state;
1083 struct si_context *sctx = (struct si_context *)ctx;
1084
1085 if (!state)
1086 return;
1087
1088 if (program == sctx->cs_shader_state.program)
1089 sctx->cs_shader_state.program = NULL;
1090
1091 if (program == sctx->cs_shader_state.emitted_program)
1092 sctx->cs_shader_state.emitted_program = NULL;
1093
1094 si_compute_reference(&program, NULL);
1095 }
1096
si_set_compute_resources(struct pipe_context * ctx_,unsigned start,unsigned count,struct pipe_surface ** surfaces)1097 static void si_set_compute_resources(struct pipe_context *ctx_, unsigned start, unsigned count,
1098 struct pipe_surface **surfaces)
1099 {
1100 }
1101
si_init_compute_functions(struct si_context * sctx)1102 void si_init_compute_functions(struct si_context *sctx)
1103 {
1104 sctx->b.create_compute_state = si_create_compute_state;
1105 sctx->b.delete_compute_state = si_delete_compute_state;
1106 sctx->b.bind_compute_state = si_bind_compute_state;
1107 sctx->b.set_compute_resources = si_set_compute_resources;
1108 sctx->b.set_global_binding = si_set_global_binding;
1109 sctx->b.launch_grid = si_launch_grid;
1110 }
1111