2 * Copyright © 2016 Red Hat.
3 * Copyright © 2016 Bas Nieuwenhuizen
5 * based in part on anv driver which is:
6 * Copyright © 2015 Intel Corporation
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 #include "util/mesa-sha1.h"
29 #include "util/u_atomic.h"
30 #include "radv_debug.h"
31 #include "radv_private.h"
32 #include "radv_shader.h"
33 #include "radv_shader_helper.h"
35 #include "nir/nir_builder.h"
36 #include "spirv/nir_spirv.h"
38 #include <llvm-c/Core.h>
39 #include <llvm-c/TargetMachine.h>
40 #include <llvm-c/Support.h>
44 #include "ac_binary.h"
45 #include "ac_llvm_util.h"
46 #include "ac_nir_to_llvm.h"
47 #include "vk_format.h"
48 #include "util/debug.h"
49 #include "ac_exp_param.h"
51 #include "util/string_buffer.h"
53 static const struct nir_shader_compiler_options nir_options
= {
54 .vertex_id_zero_based
= true,
59 .lower_device_index_to_zero
= true,
63 .lower_pack_snorm_2x16
= true,
64 .lower_pack_snorm_4x8
= true,
65 .lower_pack_unorm_2x16
= true,
66 .lower_pack_unorm_4x8
= true,
67 .lower_unpack_snorm_2x16
= true,
68 .lower_unpack_snorm_4x8
= true,
69 .lower_unpack_unorm_2x16
= true,
70 .lower_unpack_unorm_4x8
= true,
71 .lower_extract_byte
= true,
72 .lower_extract_word
= true,
75 .lower_mul_2x32_64
= true,
76 .max_unroll_iterations
= 32
79 VkResult
radv_CreateShaderModule(
81 const VkShaderModuleCreateInfo
* pCreateInfo
,
82 const VkAllocationCallbacks
* pAllocator
,
83 VkShaderModule
* pShaderModule
)
85 RADV_FROM_HANDLE(radv_device
, device
, _device
);
86 struct radv_shader_module
*module
;
88 assert(pCreateInfo
->sType
== VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO
);
89 assert(pCreateInfo
->flags
== 0);
91 module
= vk_alloc2(&device
->alloc
, pAllocator
,
92 sizeof(*module
) + pCreateInfo
->codeSize
, 8,
93 VK_SYSTEM_ALLOCATION_SCOPE_OBJECT
);
95 return vk_error(device
->instance
, VK_ERROR_OUT_OF_HOST_MEMORY
);
98 module
->size
= pCreateInfo
->codeSize
;
99 memcpy(module
->data
, pCreateInfo
->pCode
, module
->size
);
101 _mesa_sha1_compute(module
->data
, module
->size
, module
->sha1
);
103 *pShaderModule
= radv_shader_module_to_handle(module
);
108 void radv_DestroyShaderModule(
110 VkShaderModule _module
,
111 const VkAllocationCallbacks
* pAllocator
)
113 RADV_FROM_HANDLE(radv_device
, device
, _device
);
114 RADV_FROM_HANDLE(radv_shader_module
, module
, _module
);
119 vk_free2(&device
->alloc
, pAllocator
, module
);
123 radv_optimize_nir(struct nir_shader
*shader
, bool optimize_conservatively
,
131 NIR_PASS(progress
, shader
, nir_split_array_vars
, nir_var_function_temp
);
132 NIR_PASS(progress
, shader
, nir_shrink_vec_array_vars
, nir_var_function_temp
);
134 NIR_PASS_V(shader
, nir_lower_vars_to_ssa
);
135 NIR_PASS_V(shader
, nir_lower_pack
);
138 /* Only run this pass in the first call to
139 * radv_optimize_nir. Later calls assume that we've
140 * lowered away any copy_deref instructions and we
141 * don't want to introduce any more.
143 NIR_PASS(progress
, shader
, nir_opt_find_array_copies
);
146 NIR_PASS(progress
, shader
, nir_opt_copy_prop_vars
);
147 NIR_PASS(progress
, shader
, nir_opt_dead_write_vars
);
149 NIR_PASS_V(shader
, nir_lower_alu_to_scalar
);
150 NIR_PASS_V(shader
, nir_lower_phis_to_scalar
);
152 NIR_PASS(progress
, shader
, nir_copy_prop
);
153 NIR_PASS(progress
, shader
, nir_opt_remove_phis
);
154 NIR_PASS(progress
, shader
, nir_opt_dce
);
155 if (nir_opt_trivial_continues(shader
)) {
157 NIR_PASS(progress
, shader
, nir_copy_prop
);
158 NIR_PASS(progress
, shader
, nir_opt_remove_phis
);
159 NIR_PASS(progress
, shader
, nir_opt_dce
);
161 NIR_PASS(progress
, shader
, nir_opt_if
, true);
162 NIR_PASS(progress
, shader
, nir_opt_dead_cf
);
163 NIR_PASS(progress
, shader
, nir_opt_cse
);
164 NIR_PASS(progress
, shader
, nir_opt_peephole_select
, 8, true, true);
165 NIR_PASS(progress
, shader
, nir_opt_algebraic
);
166 NIR_PASS(progress
, shader
, nir_opt_constant_folding
);
167 NIR_PASS(progress
, shader
, nir_opt_undef
);
168 NIR_PASS(progress
, shader
, nir_opt_conditional_discard
);
169 if (shader
->options
->max_unroll_iterations
) {
170 NIR_PASS(progress
, shader
, nir_opt_loop_unroll
, 0);
172 } while (progress
&& !optimize_conservatively
);
174 NIR_PASS(progress
, shader
, nir_opt_shrink_load
);
175 NIR_PASS(progress
, shader
, nir_opt_move_load_ubo
);
179 radv_shader_compile_to_nir(struct radv_device
*device
,
180 struct radv_shader_module
*module
,
181 const char *entrypoint_name
,
182 gl_shader_stage stage
,
183 const VkSpecializationInfo
*spec_info
,
184 const VkPipelineCreateFlags flags
,
185 const struct radv_pipeline_layout
*layout
)
188 nir_function
*entry_point
;
190 /* Some things such as our meta clear/blit code will give us a NIR
191 * shader directly. In that case, we just ignore the SPIR-V entirely
192 * and just use the NIR shader */
194 nir
->options
= &nir_options
;
195 nir_validate_shader(nir
, "in internal shader");
197 assert(exec_list_length(&nir
->functions
) == 1);
198 struct exec_node
*node
= exec_list_get_head(&nir
->functions
);
199 entry_point
= exec_node_data(nir_function
, node
, node
);
201 uint32_t *spirv
= (uint32_t *) module
->data
;
202 assert(module
->size
% 4 == 0);
204 if (device
->instance
->debug_flags
& RADV_DEBUG_DUMP_SPIRV
)
205 radv_print_spirv(spirv
, module
->size
, stderr
);
207 uint32_t num_spec_entries
= 0;
208 struct nir_spirv_specialization
*spec_entries
= NULL
;
209 if (spec_info
&& spec_info
->mapEntryCount
> 0) {
210 num_spec_entries
= spec_info
->mapEntryCount
;
211 spec_entries
= malloc(num_spec_entries
* sizeof(*spec_entries
));
212 for (uint32_t i
= 0; i
< num_spec_entries
; i
++) {
213 VkSpecializationMapEntry entry
= spec_info
->pMapEntries
[i
];
214 const void *data
= spec_info
->pData
+ entry
.offset
;
215 assert(data
+ entry
.size
<= spec_info
->pData
+ spec_info
->dataSize
);
217 spec_entries
[i
].id
= spec_info
->pMapEntries
[i
].constantID
;
218 if (spec_info
->dataSize
== 8)
219 spec_entries
[i
].data64
= *(const uint64_t *)data
;
221 spec_entries
[i
].data32
= *(const uint32_t *)data
;
224 const struct spirv_to_nir_options spirv_options
= {
225 .lower_ubo_ssbo_access_to_offsets
= true,
227 .derivative_group
= true,
228 .descriptor_array_dynamic_indexing
= true,
229 .device_group
= true,
230 .draw_parameters
= true,
234 .geometry_streams
= true,
235 .image_read_without_format
= true,
236 .image_write_without_format
= true,
240 .int64_atomics
= true,
242 .physical_storage_buffer_address
= true,
243 .runtime_descriptor_array
= true,
244 .shader_viewport_index_layer
= true,
245 .stencil_export
= true,
246 .storage_8bit
= true,
247 .storage_16bit
= true,
248 .storage_image_ms
= true,
249 .subgroup_arithmetic
= true,
250 .subgroup_ballot
= true,
251 .subgroup_basic
= true,
252 .subgroup_quad
= true,
253 .subgroup_shuffle
= true,
254 .subgroup_vote
= true,
255 .tessellation
= true,
256 .transform_feedback
= true,
257 .trinary_minmax
= true,
258 .variable_pointers
= true,
260 .ubo_ptr_type
= glsl_vector_type(GLSL_TYPE_UINT
, 2),
261 .ssbo_ptr_type
= glsl_vector_type(GLSL_TYPE_UINT
, 2),
262 .phys_ssbo_ptr_type
= glsl_vector_type(GLSL_TYPE_UINT64
, 1),
263 .push_const_ptr_type
= glsl_uint_type(),
264 .shared_ptr_type
= glsl_uint_type(),
266 entry_point
= spirv_to_nir(spirv
, module
->size
/ 4,
267 spec_entries
, num_spec_entries
,
268 stage
, entrypoint_name
,
269 &spirv_options
, &nir_options
);
270 nir
= entry_point
->shader
;
271 assert(nir
->info
.stage
== stage
);
272 nir_validate_shader(nir
, "after spirv_to_nir");
276 /* We have to lower away local constant initializers right before we
277 * inline functions. That way they get properly initialized at the top
278 * of the function and not at the top of its caller.
280 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_function_temp
);
281 NIR_PASS_V(nir
, nir_lower_returns
);
282 NIR_PASS_V(nir
, nir_inline_functions
);
283 NIR_PASS_V(nir
, nir_opt_deref
);
285 /* Pick off the single entrypoint that we want */
286 foreach_list_typed_safe(nir_function
, func
, node
, &nir
->functions
) {
287 if (func
!= entry_point
)
288 exec_node_remove(&func
->node
);
290 assert(exec_list_length(&nir
->functions
) == 1);
291 entry_point
->name
= ralloc_strdup(entry_point
, "main");
293 /* Make sure we lower constant initializers on output variables so that
294 * nir_remove_dead_variables below sees the corresponding stores
296 NIR_PASS_V(nir
, nir_lower_constant_initializers
, nir_var_shader_out
);
298 /* Now that we've deleted all but the main function, we can go ahead and
299 * lower the rest of the constant initializers.
301 NIR_PASS_V(nir
, nir_lower_constant_initializers
, ~0);
303 /* Split member structs. We do this before lower_io_to_temporaries so that
304 * it doesn't lower system values to temporaries by accident.
306 NIR_PASS_V(nir
, nir_split_var_copies
);
307 NIR_PASS_V(nir
, nir_split_per_member_structs
);
309 NIR_PASS_V(nir
, nir_remove_dead_variables
,
310 nir_var_shader_in
| nir_var_shader_out
| nir_var_system_value
);
312 NIR_PASS_V(nir
, nir_lower_system_values
);
313 NIR_PASS_V(nir
, nir_lower_clip_cull_distance_arrays
);
314 NIR_PASS_V(nir
, radv_nir_lower_ycbcr_textures
, layout
);
317 /* Vulkan uses the separate-shader linking model */
318 nir
->info
.separate_shader
= true;
320 nir_shader_gather_info(nir
, entry_point
->impl
);
322 static const nir_lower_tex_options tex_options
= {
324 .lower_tg4_offsets
= true,
327 nir_lower_tex(nir
, &tex_options
);
329 nir_lower_vars_to_ssa(nir
);
331 if (nir
->info
.stage
== MESA_SHADER_VERTEX
||
332 nir
->info
.stage
== MESA_SHADER_GEOMETRY
) {
333 NIR_PASS_V(nir
, nir_lower_io_to_temporaries
,
334 nir_shader_get_entrypoint(nir
), true, true);
335 } else if (nir
->info
.stage
== MESA_SHADER_TESS_EVAL
||
336 nir
->info
.stage
== MESA_SHADER_FRAGMENT
) {
337 NIR_PASS_V(nir
, nir_lower_io_to_temporaries
,
338 nir_shader_get_entrypoint(nir
), true, false);
341 nir_split_var_copies(nir
);
343 nir_lower_global_vars_to_local(nir
);
344 nir_remove_dead_variables(nir
, nir_var_function_temp
);
345 nir_lower_subgroups(nir
, &(struct nir_lower_subgroups_options
) {
347 .ballot_bit_size
= 64,
348 .lower_to_scalar
= 1,
349 .lower_subgroup_masks
= 1,
351 .lower_shuffle_to_32bit
= 1,
352 .lower_vote_eq_to_ballot
= 1,
355 nir_lower_load_const_to_scalar(nir
);
357 if (!(flags
& VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT
))
358 radv_optimize_nir(nir
, false, true);
360 /* We call nir_lower_var_copies() after the first radv_optimize_nir()
361 * to remove any copies introduced by nir_opt_find_array_copies().
363 nir_lower_var_copies(nir
);
365 /* Indirect lowering must be called after the radv_optimize_nir() loop
366 * has been called at least once. Otherwise indirect lowering can
367 * bloat the instruction count of the loop and cause it to be
368 * considered too large for unrolling.
370 ac_lower_indirect_derefs(nir
, device
->physical_device
->rad_info
.chip_class
);
371 radv_optimize_nir(nir
, flags
& VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT
, false);
377 radv_alloc_shader_memory(struct radv_device
*device
,
378 struct radv_shader_variant
*shader
)
380 mtx_lock(&device
->shader_slab_mutex
);
381 list_for_each_entry(struct radv_shader_slab
, slab
, &device
->shader_slabs
, slabs
) {
383 list_for_each_entry(struct radv_shader_variant
, s
, &slab
->shaders
, slab_list
) {
384 if (s
->bo_offset
- offset
>= shader
->code_size
) {
385 shader
->bo
= slab
->bo
;
386 shader
->bo_offset
= offset
;
387 list_addtail(&shader
->slab_list
, &s
->slab_list
);
388 mtx_unlock(&device
->shader_slab_mutex
);
389 return slab
->ptr
+ offset
;
391 offset
= align_u64(s
->bo_offset
+ s
->code_size
, 256);
393 if (slab
->size
- offset
>= shader
->code_size
) {
394 shader
->bo
= slab
->bo
;
395 shader
->bo_offset
= offset
;
396 list_addtail(&shader
->slab_list
, &slab
->shaders
);
397 mtx_unlock(&device
->shader_slab_mutex
);
398 return slab
->ptr
+ offset
;
402 mtx_unlock(&device
->shader_slab_mutex
);
403 struct radv_shader_slab
*slab
= calloc(1, sizeof(struct radv_shader_slab
));
405 slab
->size
= 256 * 1024;
406 slab
->bo
= device
->ws
->buffer_create(device
->ws
, slab
->size
, 256,
408 RADEON_FLAG_NO_INTERPROCESS_SHARING
|
409 (device
->physical_device
->cpdma_prefetch_writes_memory
?
410 0 : RADEON_FLAG_READ_ONLY
),
411 RADV_BO_PRIORITY_SHADER
);
412 slab
->ptr
= (char*)device
->ws
->buffer_map(slab
->bo
);
413 list_inithead(&slab
->shaders
);
415 mtx_lock(&device
->shader_slab_mutex
);
416 list_add(&slab
->slabs
, &device
->shader_slabs
);
418 shader
->bo
= slab
->bo
;
419 shader
->bo_offset
= 0;
420 list_add(&shader
->slab_list
, &slab
->shaders
);
421 mtx_unlock(&device
->shader_slab_mutex
);
426 radv_destroy_shader_slabs(struct radv_device
*device
)
428 list_for_each_entry_safe(struct radv_shader_slab
, slab
, &device
->shader_slabs
, slabs
) {
429 device
->ws
->buffer_destroy(slab
->bo
);
432 mtx_destroy(&device
->shader_slab_mutex
);
435 /* For the UMR disassembler. */
436 #define DEBUGGER_END_OF_CODE_MARKER 0xbf9f0000 /* invalid instruction */
437 #define DEBUGGER_NUM_MARKERS 5
440 radv_get_shader_binary_size(struct ac_shader_binary
*binary
)
442 return binary
->code_size
+ DEBUGGER_NUM_MARKERS
* 4;
446 radv_fill_shader_variant(struct radv_device
*device
,
447 struct radv_shader_variant
*variant
,
448 struct ac_shader_binary
*binary
,
449 gl_shader_stage stage
)
451 bool scratch_enabled
= variant
->config
.scratch_bytes_per_wave
> 0;
452 struct radv_shader_info
*info
= &variant
->info
.info
;
453 unsigned vgpr_comp_cnt
= 0;
455 variant
->code_size
= radv_get_shader_binary_size(binary
);
456 variant
->rsrc2
= S_00B12C_USER_SGPR(variant
->info
.num_user_sgprs
) |
457 S_00B12C_USER_SGPR_MSB(variant
->info
.num_user_sgprs
>> 5) |
458 S_00B12C_SCRATCH_EN(scratch_enabled
) |
459 S_00B12C_SO_BASE0_EN(!!info
->so
.strides
[0]) |
460 S_00B12C_SO_BASE1_EN(!!info
->so
.strides
[1]) |
461 S_00B12C_SO_BASE2_EN(!!info
->so
.strides
[2]) |
462 S_00B12C_SO_BASE3_EN(!!info
->so
.strides
[3]) |
463 S_00B12C_SO_EN(!!info
->so
.num_outputs
);
465 variant
->rsrc1
= S_00B848_VGPRS((variant
->config
.num_vgprs
- 1) / 4) |
466 S_00B848_SGPRS((variant
->config
.num_sgprs
- 1) / 8) |
467 S_00B848_DX10_CLAMP(1) |
468 S_00B848_FLOAT_MODE(variant
->config
.float_mode
);
471 case MESA_SHADER_TESS_EVAL
:
473 variant
->rsrc2
|= S_00B12C_OC_LDS_EN(1);
475 case MESA_SHADER_TESS_CTRL
:
476 if (device
->physical_device
->rad_info
.chip_class
>= GFX9
) {
477 vgpr_comp_cnt
= variant
->info
.vs
.vgpr_comp_cnt
;
479 variant
->rsrc2
|= S_00B12C_OC_LDS_EN(1);
482 case MESA_SHADER_VERTEX
:
483 case MESA_SHADER_GEOMETRY
:
484 vgpr_comp_cnt
= variant
->info
.vs
.vgpr_comp_cnt
;
486 case MESA_SHADER_FRAGMENT
:
488 case MESA_SHADER_COMPUTE
:
490 S_00B84C_TGID_X_EN(info
->cs
.uses_block_id
[0]) |
491 S_00B84C_TGID_Y_EN(info
->cs
.uses_block_id
[1]) |
492 S_00B84C_TGID_Z_EN(info
->cs
.uses_block_id
[2]) |
493 S_00B84C_TIDIG_COMP_CNT(info
->cs
.uses_thread_id
[2] ? 2 :
494 info
->cs
.uses_thread_id
[1] ? 1 : 0) |
495 S_00B84C_TG_SIZE_EN(info
->cs
.uses_local_invocation_idx
) |
496 S_00B84C_LDS_SIZE(variant
->config
.lds_size
);
499 unreachable("unsupported shader type");
503 if (device
->physical_device
->rad_info
.chip_class
>= GFX9
&&
504 stage
== MESA_SHADER_GEOMETRY
) {
505 unsigned es_type
= variant
->info
.gs
.es_type
;
506 unsigned gs_vgpr_comp_cnt
, es_vgpr_comp_cnt
;
508 if (es_type
== MESA_SHADER_VERTEX
) {
509 es_vgpr_comp_cnt
= variant
->info
.vs
.vgpr_comp_cnt
;
510 } else if (es_type
== MESA_SHADER_TESS_EVAL
) {
511 es_vgpr_comp_cnt
= 3;
513 unreachable("invalid shader ES type");
516 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
517 * VGPR[0:4] are always loaded.
519 if (info
->uses_invocation_id
) {
520 gs_vgpr_comp_cnt
= 3; /* VGPR3 contains InvocationID. */
521 } else if (info
->uses_prim_id
) {
522 gs_vgpr_comp_cnt
= 2; /* VGPR2 contains PrimitiveID. */
523 } else if (variant
->info
.gs
.vertices_in
>= 3) {
524 gs_vgpr_comp_cnt
= 1; /* VGPR1 contains offsets 2, 3 */
526 gs_vgpr_comp_cnt
= 0; /* VGPR0 contains offsets 0, 1 */
529 variant
->rsrc1
|= S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt
);
530 variant
->rsrc2
|= S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt
) |
531 S_00B22C_OC_LDS_EN(es_type
== MESA_SHADER_TESS_EVAL
);
532 } else if (device
->physical_device
->rad_info
.chip_class
>= GFX9
&&
533 stage
== MESA_SHADER_TESS_CTRL
) {
534 variant
->rsrc1
|= S_00B428_LS_VGPR_COMP_CNT(vgpr_comp_cnt
);
536 variant
->rsrc1
|= S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt
);
539 void *ptr
= radv_alloc_shader_memory(device
, variant
);
540 memcpy(ptr
, binary
->code
, binary
->code_size
);
542 /* Add end-of-code markers for the UMR disassembler. */
543 uint32_t *ptr32
= (uint32_t *)ptr
+ binary
->code_size
/ 4;
544 for (unsigned i
= 0; i
< DEBUGGER_NUM_MARKERS
; i
++)
545 ptr32
[i
] = DEBUGGER_END_OF_CODE_MARKER
;
549 static void radv_init_llvm_target()
551 LLVMInitializeAMDGPUTargetInfo();
552 LLVMInitializeAMDGPUTarget();
553 LLVMInitializeAMDGPUTargetMC();
554 LLVMInitializeAMDGPUAsmPrinter();
556 /* For inline assembly. */
557 LLVMInitializeAMDGPUAsmParser();
559 /* Workaround for bug in llvm 4.0 that causes image intrinsics
561 * https://reviews.llvm.org/D26348
563 * Workaround for bug in llvm that causes the GPU to hang in presence
564 * of nested loops because there is an exec mask issue. The proper
565 * solution is to fix LLVM but this might require a bunch of work.
566 * https://bugs.llvm.org/show_bug.cgi?id=37744
568 * "mesa" is the prefix for error messages.
570 if (HAVE_LLVM
>= 0x0800) {
571 const char *argv
[2] = { "mesa", "-simplifycfg-sink-common=false" };
572 LLVMParseCommandLineOptions(2, argv
, NULL
);
575 const char *argv
[3] = { "mesa", "-simplifycfg-sink-common=false",
576 "-amdgpu-skip-threshold=1" };
577 LLVMParseCommandLineOptions(3, argv
, NULL
);
581 static once_flag radv_init_llvm_target_once_flag
= ONCE_FLAG_INIT
;
583 static void radv_init_llvm_once(void)
585 call_once(&radv_init_llvm_target_once_flag
, radv_init_llvm_target
);
588 static struct radv_shader_variant
*
589 shader_variant_create(struct radv_device
*device
,
590 struct radv_shader_module
*module
,
591 struct nir_shader
* const *shaders
,
593 gl_shader_stage stage
,
594 struct radv_nir_compiler_options
*options
,
597 unsigned *code_size_out
)
599 enum radeon_family chip_family
= device
->physical_device
->rad_info
.family
;
600 enum ac_target_machine_options tm_options
= 0;
601 struct radv_shader_variant
*variant
;
602 struct ac_shader_binary binary
;
603 struct ac_llvm_compiler ac_llvm
;
604 bool thread_compiler
;
605 variant
= calloc(1, sizeof(struct radv_shader_variant
));
609 options
->family
= chip_family
;
610 options
->chip_class
= device
->physical_device
->rad_info
.chip_class
;
611 options
->dump_shader
= radv_can_dump_shader(device
, module
, gs_copy_shader
);
612 options
->dump_preoptir
= options
->dump_shader
&&
613 device
->instance
->debug_flags
& RADV_DEBUG_PREOPTIR
;
614 options
->record_llvm_ir
= device
->keep_shader_info
;
615 options
->check_ir
= device
->instance
->debug_flags
& RADV_DEBUG_CHECKIR
;
616 options
->tess_offchip_block_dw_size
= device
->tess_offchip_block_dw_size
;
617 options
->address32_hi
= device
->physical_device
->rad_info
.address32_hi
;
619 if (options
->supports_spill
)
620 tm_options
|= AC_TM_SUPPORTS_SPILL
;
621 if (device
->instance
->perftest_flags
& RADV_PERFTEST_SISCHED
)
622 tm_options
|= AC_TM_SISCHED
;
623 if (options
->check_ir
)
624 tm_options
|= AC_TM_CHECK_IR
;
626 thread_compiler
= !(device
->instance
->debug_flags
& RADV_DEBUG_NOTHREADLLVM
);
627 radv_init_llvm_once();
628 radv_init_llvm_compiler(&ac_llvm
,
630 chip_family
, tm_options
);
631 if (gs_copy_shader
) {
632 assert(shader_count
== 1);
633 radv_compile_gs_copy_shader(&ac_llvm
, *shaders
, &binary
,
634 &variant
->config
, &variant
->info
,
637 radv_compile_nir_shader(&ac_llvm
, &binary
, &variant
->config
,
638 &variant
->info
, shaders
, shader_count
,
642 radv_destroy_llvm_compiler(&ac_llvm
, thread_compiler
);
644 radv_fill_shader_variant(device
, variant
, &binary
, stage
);
647 *code_out
= binary
.code
;
648 *code_size_out
= binary
.code_size
;
653 free(binary
.global_symbol_offsets
);
655 variant
->ref_count
= 1;
657 if (device
->keep_shader_info
) {
658 variant
->disasm_string
= binary
.disasm_string
;
659 variant
->llvm_ir_string
= binary
.llvm_ir_string
;
660 if (!gs_copy_shader
&& !module
->nir
) {
661 variant
->nir
= *shaders
;
662 variant
->spirv
= (uint32_t *)module
->data
;
663 variant
->spirv_size
= module
->size
;
666 free(binary
.disasm_string
);
672 struct radv_shader_variant
*
673 radv_shader_variant_create(struct radv_device
*device
,
674 struct radv_shader_module
*module
,
675 struct nir_shader
*const *shaders
,
677 struct radv_pipeline_layout
*layout
,
678 const struct radv_shader_variant_key
*key
,
680 unsigned *code_size_out
)
682 struct radv_nir_compiler_options options
= {0};
684 options
.layout
= layout
;
688 options
.unsafe_math
= !!(device
->instance
->debug_flags
& RADV_DEBUG_UNSAFE_MATH
);
689 options
.supports_spill
= true;
691 return shader_variant_create(device
, module
, shaders
, shader_count
, shaders
[shader_count
- 1]->info
.stage
,
692 &options
, false, code_out
, code_size_out
);
695 struct radv_shader_variant
*
696 radv_create_gs_copy_shader(struct radv_device
*device
,
697 struct nir_shader
*shader
,
699 unsigned *code_size_out
,
702 struct radv_nir_compiler_options options
= {0};
704 options
.key
.has_multiview_view_index
= multiview
;
706 return shader_variant_create(device
, NULL
, &shader
, 1, MESA_SHADER_VERTEX
,
707 &options
, true, code_out
, code_size_out
);
711 radv_shader_variant_destroy(struct radv_device
*device
,
712 struct radv_shader_variant
*variant
)
714 if (!p_atomic_dec_zero(&variant
->ref_count
))
717 mtx_lock(&device
->shader_slab_mutex
);
718 list_del(&variant
->slab_list
);
719 mtx_unlock(&device
->shader_slab_mutex
);
721 ralloc_free(variant
->nir
);
722 free(variant
->disasm_string
);
723 free(variant
->llvm_ir_string
);
728 radv_get_shader_name(struct radv_shader_variant
*var
, gl_shader_stage stage
)
731 case MESA_SHADER_VERTEX
: return var
->info
.vs
.as_ls
? "Vertex Shader as LS" : var
->info
.vs
.as_es
? "Vertex Shader as ES" : "Vertex Shader as VS";
732 case MESA_SHADER_GEOMETRY
: return "Geometry Shader";
733 case MESA_SHADER_FRAGMENT
: return "Pixel Shader";
734 case MESA_SHADER_COMPUTE
: return "Compute Shader";
735 case MESA_SHADER_TESS_CTRL
: return "Tessellation Control Shader";
736 case MESA_SHADER_TESS_EVAL
: return var
->info
.tes
.as_es
? "Tessellation Evaluation Shader as ES" : "Tessellation Evaluation Shader as VS";
738 return "Unknown shader";
743 generate_shader_stats(struct radv_device
*device
,
744 struct radv_shader_variant
*variant
,
745 gl_shader_stage stage
,
746 struct _mesa_string_buffer
*buf
)
748 enum chip_class chip_class
= device
->physical_device
->rad_info
.chip_class
;
749 unsigned lds_increment
= chip_class
>= CIK
? 512 : 256;
750 struct ac_shader_config
*conf
;
751 unsigned max_simd_waves
;
752 unsigned lds_per_wave
= 0;
754 max_simd_waves
= ac_get_max_simd_waves(device
->physical_device
->rad_info
.family
);
756 conf
= &variant
->config
;
758 if (stage
== MESA_SHADER_FRAGMENT
) {
759 lds_per_wave
= conf
->lds_size
* lds_increment
+
760 align(variant
->info
.fs
.num_interp
* 48,
762 } else if (stage
== MESA_SHADER_COMPUTE
) {
763 unsigned max_workgroup_size
=
764 radv_nir_get_max_workgroup_size(chip_class
, variant
->nir
);
765 lds_per_wave
= (conf
->lds_size
* lds_increment
) /
766 DIV_ROUND_UP(max_workgroup_size
, 64);
772 ac_get_num_physical_sgprs(chip_class
) / conf
->num_sgprs
);
777 RADV_NUM_PHYSICAL_VGPRS
/ conf
->num_vgprs
);
779 /* LDS is 64KB per CU (4 SIMDs), divided into 16KB blocks per SIMD
783 max_simd_waves
= MIN2(max_simd_waves
, 16384 / lds_per_wave
);
785 if (stage
== MESA_SHADER_FRAGMENT
) {
786 _mesa_string_buffer_printf(buf
, "*** SHADER CONFIG ***\n"
787 "SPI_PS_INPUT_ADDR = 0x%04x\n"
788 "SPI_PS_INPUT_ENA = 0x%04x\n",
789 conf
->spi_ps_input_addr
, conf
->spi_ps_input_ena
);
792 _mesa_string_buffer_printf(buf
, "*** SHADER STATS ***\n"
795 "Spilled SGPRs: %d\n"
796 "Spilled VGPRs: %d\n"
797 "PrivMem VGPRS: %d\n"
798 "Code Size: %d bytes\n"
800 "Scratch: %d bytes per wave\n"
802 "********************\n\n\n",
803 conf
->num_sgprs
, conf
->num_vgprs
,
804 conf
->spilled_sgprs
, conf
->spilled_vgprs
,
805 variant
->info
.private_mem_vgprs
, variant
->code_size
,
806 conf
->lds_size
, conf
->scratch_bytes_per_wave
,
811 radv_shader_dump_stats(struct radv_device
*device
,
812 struct radv_shader_variant
*variant
,
813 gl_shader_stage stage
,
816 struct _mesa_string_buffer
*buf
= _mesa_string_buffer_create(NULL
, 256);
818 generate_shader_stats(device
, variant
, stage
, buf
);
820 fprintf(file
, "\n%s:\n", radv_get_shader_name(variant
, stage
));
821 fprintf(file
, "%s", buf
->buf
);
823 _mesa_string_buffer_destroy(buf
);
827 radv_GetShaderInfoAMD(VkDevice _device
,
828 VkPipeline _pipeline
,
829 VkShaderStageFlagBits shaderStage
,
830 VkShaderInfoTypeAMD infoType
,
834 RADV_FROM_HANDLE(radv_device
, device
, _device
);
835 RADV_FROM_HANDLE(radv_pipeline
, pipeline
, _pipeline
);
836 gl_shader_stage stage
= vk_to_mesa_shader_stage(shaderStage
);
837 struct radv_shader_variant
*variant
= pipeline
->shaders
[stage
];
838 struct _mesa_string_buffer
*buf
;
839 VkResult result
= VK_SUCCESS
;
841 /* Spec doesn't indicate what to do if the stage is invalid, so just
842 * return no info for this. */
844 return vk_error(device
->instance
, VK_ERROR_FEATURE_NOT_PRESENT
);
847 case VK_SHADER_INFO_TYPE_STATISTICS_AMD
:
849 *pInfoSize
= sizeof(VkShaderStatisticsInfoAMD
);
851 unsigned lds_multiplier
= device
->physical_device
->rad_info
.chip_class
>= CIK
? 512 : 256;
852 struct ac_shader_config
*conf
= &variant
->config
;
854 VkShaderStatisticsInfoAMD statistics
= {};
855 statistics
.shaderStageMask
= shaderStage
;
856 statistics
.numPhysicalVgprs
= RADV_NUM_PHYSICAL_VGPRS
;
857 statistics
.numPhysicalSgprs
= ac_get_num_physical_sgprs(device
->physical_device
->rad_info
.chip_class
);
858 statistics
.numAvailableSgprs
= statistics
.numPhysicalSgprs
;
860 if (stage
== MESA_SHADER_COMPUTE
) {
861 unsigned *local_size
= variant
->nir
->info
.cs
.local_size
;
862 unsigned workgroup_size
= local_size
[0] * local_size
[1] * local_size
[2];
864 statistics
.numAvailableVgprs
= statistics
.numPhysicalVgprs
/
865 ceil((double)workgroup_size
/ statistics
.numPhysicalVgprs
);
867 statistics
.computeWorkGroupSize
[0] = local_size
[0];
868 statistics
.computeWorkGroupSize
[1] = local_size
[1];
869 statistics
.computeWorkGroupSize
[2] = local_size
[2];
871 statistics
.numAvailableVgprs
= statistics
.numPhysicalVgprs
;
874 statistics
.resourceUsage
.numUsedVgprs
= conf
->num_vgprs
;
875 statistics
.resourceUsage
.numUsedSgprs
= conf
->num_sgprs
;
876 statistics
.resourceUsage
.ldsSizePerLocalWorkGroup
= 32768;
877 statistics
.resourceUsage
.ldsUsageSizeInBytes
= conf
->lds_size
* lds_multiplier
;
878 statistics
.resourceUsage
.scratchMemUsageInBytes
= conf
->scratch_bytes_per_wave
;
880 size_t size
= *pInfoSize
;
881 *pInfoSize
= sizeof(statistics
);
883 memcpy(pInfo
, &statistics
, MIN2(size
, *pInfoSize
));
885 if (size
< *pInfoSize
)
886 result
= VK_INCOMPLETE
;
890 case VK_SHADER_INFO_TYPE_DISASSEMBLY_AMD
:
891 buf
= _mesa_string_buffer_create(NULL
, 1024);
893 _mesa_string_buffer_printf(buf
, "%s:\n", radv_get_shader_name(variant
, stage
));
894 _mesa_string_buffer_printf(buf
, "%s\n\n", variant
->llvm_ir_string
);
895 _mesa_string_buffer_printf(buf
, "%s\n\n", variant
->disasm_string
);
896 generate_shader_stats(device
, variant
, stage
, buf
);
898 /* Need to include the null terminator. */
899 size_t length
= buf
->length
+ 1;
904 size_t size
= *pInfoSize
;
907 memcpy(pInfo
, buf
->buf
, MIN2(size
, length
));
910 result
= VK_INCOMPLETE
;
913 _mesa_string_buffer_destroy(buf
);
916 /* VK_SHADER_INFO_TYPE_BINARY_AMD unimplemented for now. */
917 result
= VK_ERROR_FEATURE_NOT_PRESENT
;