2 * Copyright 2012 Advanced Micro Devices, Inc.
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:
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
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.
25 #include "ac_exp_param.h"
26 #include "ac_shader_util.h"
27 #include "compiler/nir/nir_serialize.h"
28 #include "nir/tgsi_to_nir.h"
29 #include "si_build_pm4.h"
31 #include "util/crc32.h"
32 #include "util/disk_cache.h"
33 #include "util/hash_table.h"
34 #include "util/mesa-sha1.h"
35 #include "util/u_async_debug.h"
36 #include "util/u_memory.h"
37 #include "util/u_prim.h"
42 * Return the IR key for the shader cache.
44 void si_get_ir_cache_key(struct si_shader_selector
*sel
, bool ngg
, bool es
,
45 unsigned char ir_sha1_cache_key
[20])
47 struct blob blob
= {};
51 if (sel
->nir_binary
) {
52 ir_binary
= sel
->nir_binary
;
53 ir_size
= sel
->nir_size
;
58 nir_serialize(&blob
, sel
->nir
, true);
59 ir_binary
= blob
.data
;
63 /* These settings affect the compilation, but they are not derived
64 * from the input shader IR.
66 unsigned shader_variant_flags
= 0;
69 shader_variant_flags
|= 1 << 0;
71 shader_variant_flags
|= 1 << 1;
72 if (si_get_wave_size(sel
->screen
, sel
->type
, ngg
, es
, false) == 32)
73 shader_variant_flags
|= 1 << 2;
74 if (sel
->type
== PIPE_SHADER_FRAGMENT
&& sel
->info
.uses_derivatives
&& sel
->info
.uses_kill
&&
75 sel
->screen
->debug_flags
& DBG(FS_CORRECT_DERIVS_AFTER_KILL
))
76 shader_variant_flags
|= 1 << 3;
78 /* This varies depending on whether compute-based culling is enabled. */
79 shader_variant_flags
|= sel
->screen
->num_vbos_in_user_sgprs
<< 4;
82 _mesa_sha1_init(&ctx
);
83 _mesa_sha1_update(&ctx
, &shader_variant_flags
, 4);
84 _mesa_sha1_update(&ctx
, ir_binary
, ir_size
);
85 if (sel
->type
== PIPE_SHADER_VERTEX
|| sel
->type
== PIPE_SHADER_TESS_EVAL
||
86 sel
->type
== PIPE_SHADER_GEOMETRY
)
87 _mesa_sha1_update(&ctx
, &sel
->so
, sizeof(sel
->so
));
88 _mesa_sha1_final(&ctx
, ir_sha1_cache_key
);
90 if (ir_binary
== blob
.data
)
94 /** Copy "data" to "ptr" and return the next dword following copied data. */
95 static uint32_t *write_data(uint32_t *ptr
, const void *data
, unsigned size
)
97 /* data may be NULL if size == 0 */
99 memcpy(ptr
, data
, size
);
100 ptr
+= DIV_ROUND_UP(size
, 4);
104 /** Read data from "ptr". Return the next dword following the data. */
105 static uint32_t *read_data(uint32_t *ptr
, void *data
, unsigned size
)
107 memcpy(data
, ptr
, size
);
108 ptr
+= DIV_ROUND_UP(size
, 4);
113 * Write the size as uint followed by the data. Return the next dword
114 * following the copied data.
116 static uint32_t *write_chunk(uint32_t *ptr
, const void *data
, unsigned size
)
119 return write_data(ptr
, data
, size
);
123 * Read the size as uint followed by the data. Return both via parameters.
124 * Return the next dword following the data.
126 static uint32_t *read_chunk(uint32_t *ptr
, void **data
, unsigned *size
)
129 assert(*data
== NULL
);
132 *data
= malloc(*size
);
133 return read_data(ptr
, *data
, *size
);
137 * Return the shader binary in a buffer. The first 4 bytes contain its size
140 static void *si_get_shader_binary(struct si_shader
*shader
)
142 /* There is always a size of data followed by the data itself. */
143 unsigned llvm_ir_size
=
144 shader
->binary
.llvm_ir_string
? strlen(shader
->binary
.llvm_ir_string
) + 1 : 0;
146 /* Refuse to allocate overly large buffers and guard against integer
148 if (shader
->binary
.elf_size
> UINT_MAX
/ 4 || llvm_ir_size
> UINT_MAX
/ 4)
151 unsigned size
= 4 + /* total size */
152 4 + /* CRC32 of the data below */
153 align(sizeof(shader
->config
), 4) + align(sizeof(shader
->info
), 4) + 4 +
154 align(shader
->binary
.elf_size
, 4) + 4 + align(llvm_ir_size
, 4);
155 void *buffer
= CALLOC(1, size
);
156 uint32_t *ptr
= (uint32_t *)buffer
;
162 ptr
++; /* CRC32 is calculated at the end. */
164 ptr
= write_data(ptr
, &shader
->config
, sizeof(shader
->config
));
165 ptr
= write_data(ptr
, &shader
->info
, sizeof(shader
->info
));
166 ptr
= write_chunk(ptr
, shader
->binary
.elf_buffer
, shader
->binary
.elf_size
);
167 ptr
= write_chunk(ptr
, shader
->binary
.llvm_ir_string
, llvm_ir_size
);
168 assert((char *)ptr
- (char *)buffer
== size
);
171 ptr
= (uint32_t *)buffer
;
173 *ptr
= util_hash_crc32(ptr
+ 1, size
- 8);
178 static bool si_load_shader_binary(struct si_shader
*shader
, void *binary
)
180 uint32_t *ptr
= (uint32_t *)binary
;
181 uint32_t size
= *ptr
++;
182 uint32_t crc32
= *ptr
++;
186 if (util_hash_crc32(ptr
, size
- 8) != crc32
) {
187 fprintf(stderr
, "radeonsi: binary shader has invalid CRC32\n");
191 ptr
= read_data(ptr
, &shader
->config
, sizeof(shader
->config
));
192 ptr
= read_data(ptr
, &shader
->info
, sizeof(shader
->info
));
193 ptr
= read_chunk(ptr
, (void **)&shader
->binary
.elf_buffer
, &elf_size
);
194 shader
->binary
.elf_size
= elf_size
;
195 ptr
= read_chunk(ptr
, (void **)&shader
->binary
.llvm_ir_string
, &chunk_size
);
201 * Insert a shader into the cache. It's assumed the shader is not in the cache.
202 * Use si_shader_cache_load_shader before calling this.
204 void si_shader_cache_insert_shader(struct si_screen
*sscreen
, unsigned char ir_sha1_cache_key
[20],
205 struct si_shader
*shader
, bool insert_into_disk_cache
)
208 struct hash_entry
*entry
;
209 uint8_t key
[CACHE_KEY_SIZE
];
211 entry
= _mesa_hash_table_search(sscreen
->shader_cache
, ir_sha1_cache_key
);
213 return; /* already added */
215 hw_binary
= si_get_shader_binary(shader
);
219 if (_mesa_hash_table_insert(sscreen
->shader_cache
, mem_dup(ir_sha1_cache_key
, 20), hw_binary
) ==
225 if (sscreen
->disk_shader_cache
&& insert_into_disk_cache
) {
226 disk_cache_compute_key(sscreen
->disk_shader_cache
, ir_sha1_cache_key
, 20, key
);
227 disk_cache_put(sscreen
->disk_shader_cache
, key
, hw_binary
, *((uint32_t *)hw_binary
), NULL
);
231 bool si_shader_cache_load_shader(struct si_screen
*sscreen
, unsigned char ir_sha1_cache_key
[20],
232 struct si_shader
*shader
)
234 struct hash_entry
*entry
= _mesa_hash_table_search(sscreen
->shader_cache
, ir_sha1_cache_key
);
237 if (si_load_shader_binary(shader
, entry
->data
)) {
238 p_atomic_inc(&sscreen
->num_memory_shader_cache_hits
);
242 p_atomic_inc(&sscreen
->num_memory_shader_cache_misses
);
244 if (!sscreen
->disk_shader_cache
)
247 unsigned char sha1
[CACHE_KEY_SIZE
];
248 disk_cache_compute_key(sscreen
->disk_shader_cache
, ir_sha1_cache_key
, 20, sha1
);
251 uint8_t *buffer
= disk_cache_get(sscreen
->disk_shader_cache
, sha1
, &binary_size
);
253 if (binary_size
>= sizeof(uint32_t) && *((uint32_t *)buffer
) == binary_size
) {
254 if (si_load_shader_binary(shader
, buffer
)) {
256 si_shader_cache_insert_shader(sscreen
, ir_sha1_cache_key
, shader
, false);
257 p_atomic_inc(&sscreen
->num_disk_shader_cache_hits
);
261 /* Something has gone wrong discard the item from the cache and
262 * rebuild/link from source.
264 assert(!"Invalid radeonsi shader disk cache item!");
265 disk_cache_remove(sscreen
->disk_shader_cache
, sha1
);
270 p_atomic_inc(&sscreen
->num_disk_shader_cache_misses
);
274 static uint32_t si_shader_cache_key_hash(const void *key
)
276 /* Take the first dword of SHA1. */
277 return *(uint32_t *)key
;
280 static bool si_shader_cache_key_equals(const void *a
, const void *b
)
283 return memcmp(a
, b
, 20) == 0;
286 static void si_destroy_shader_cache_entry(struct hash_entry
*entry
)
288 FREE((void *)entry
->key
);
292 bool si_init_shader_cache(struct si_screen
*sscreen
)
294 (void)simple_mtx_init(&sscreen
->shader_cache_mutex
, mtx_plain
);
295 sscreen
->shader_cache
=
296 _mesa_hash_table_create(NULL
, si_shader_cache_key_hash
, si_shader_cache_key_equals
);
298 return sscreen
->shader_cache
!= NULL
;
301 void si_destroy_shader_cache(struct si_screen
*sscreen
)
303 if (sscreen
->shader_cache
)
304 _mesa_hash_table_destroy(sscreen
->shader_cache
, si_destroy_shader_cache_entry
);
305 simple_mtx_destroy(&sscreen
->shader_cache_mutex
);
310 static void si_set_tesseval_regs(struct si_screen
*sscreen
, const struct si_shader_selector
*tes
,
311 struct si_pm4_state
*pm4
)
313 const struct si_shader_info
*info
= &tes
->info
;
314 unsigned tes_prim_mode
= info
->properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
315 unsigned tes_spacing
= info
->properties
[TGSI_PROPERTY_TES_SPACING
];
316 bool tes_vertex_order_cw
= info
->properties
[TGSI_PROPERTY_TES_VERTEX_ORDER_CW
];
317 bool tes_point_mode
= info
->properties
[TGSI_PROPERTY_TES_POINT_MODE
];
318 unsigned type
, partitioning
, topology
, distribution_mode
;
320 switch (tes_prim_mode
) {
321 case PIPE_PRIM_LINES
:
322 type
= V_028B6C_TESS_ISOLINE
;
324 case PIPE_PRIM_TRIANGLES
:
325 type
= V_028B6C_TESS_TRIANGLE
;
327 case PIPE_PRIM_QUADS
:
328 type
= V_028B6C_TESS_QUAD
;
335 switch (tes_spacing
) {
336 case PIPE_TESS_SPACING_FRACTIONAL_ODD
:
337 partitioning
= V_028B6C_PART_FRAC_ODD
;
339 case PIPE_TESS_SPACING_FRACTIONAL_EVEN
:
340 partitioning
= V_028B6C_PART_FRAC_EVEN
;
342 case PIPE_TESS_SPACING_EQUAL
:
343 partitioning
= V_028B6C_PART_INTEGER
;
351 topology
= V_028B6C_OUTPUT_POINT
;
352 else if (tes_prim_mode
== PIPE_PRIM_LINES
)
353 topology
= V_028B6C_OUTPUT_LINE
;
354 else if (tes_vertex_order_cw
)
355 /* for some reason, this must be the other way around */
356 topology
= V_028B6C_OUTPUT_TRIANGLE_CCW
;
358 topology
= V_028B6C_OUTPUT_TRIANGLE_CW
;
360 if (sscreen
->info
.has_distributed_tess
) {
361 if (sscreen
->info
.family
== CHIP_FIJI
|| sscreen
->info
.family
>= CHIP_POLARIS10
)
362 distribution_mode
= V_028B6C_DISTRIBUTION_MODE_TRAPEZOIDS
;
364 distribution_mode
= V_028B6C_DISTRIBUTION_MODE_DONUTS
;
366 distribution_mode
= V_028B6C_DISTRIBUTION_MODE_NO_DIST
;
369 pm4
->shader
->vgt_tf_param
= S_028B6C_TYPE(type
) | S_028B6C_PARTITIONING(partitioning
) |
370 S_028B6C_TOPOLOGY(topology
) |
371 S_028B6C_DISTRIBUTION_MODE(distribution_mode
);
374 /* Polaris needs different VTX_REUSE_DEPTH settings depending on
375 * whether the "fractional odd" tessellation spacing is used.
377 * Possible VGT configurations and which state should set the register:
379 * Reg set in | VGT shader configuration | Value
380 * ------------------------------------------------------
382 * VS as ES | ES -> GS -> VS | 30
383 * TES as VS | LS -> HS -> VS | 14 or 30
384 * TES as ES | LS -> HS -> ES -> GS -> VS | 14 or 30
386 * If "shader" is NULL, it's assumed it's not LS or GS copy shader.
388 static void polaris_set_vgt_vertex_reuse(struct si_screen
*sscreen
, struct si_shader_selector
*sel
,
389 struct si_shader
*shader
, struct si_pm4_state
*pm4
)
391 unsigned type
= sel
->type
;
393 if (sscreen
->info
.family
< CHIP_POLARIS10
|| sscreen
->info
.chip_class
>= GFX10
)
396 /* VS as VS, or VS as ES: */
397 if ((type
== PIPE_SHADER_VERTEX
&&
398 (!shader
|| (!shader
->key
.as_ls
&& !shader
->is_gs_copy_shader
))) ||
399 /* TES as VS, or TES as ES: */
400 type
== PIPE_SHADER_TESS_EVAL
) {
401 unsigned vtx_reuse_depth
= 30;
403 if (type
== PIPE_SHADER_TESS_EVAL
&&
404 sel
->info
.properties
[TGSI_PROPERTY_TES_SPACING
] == PIPE_TESS_SPACING_FRACTIONAL_ODD
)
405 vtx_reuse_depth
= 14;
408 pm4
->shader
->vgt_vertex_reuse_block_cntl
= vtx_reuse_depth
;
412 static struct si_pm4_state
*si_get_shader_pm4_state(struct si_shader
*shader
)
415 si_pm4_clear_state(shader
->pm4
);
417 shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
420 shader
->pm4
->shader
= shader
;
423 fprintf(stderr
, "radeonsi: Failed to create pm4 state.\n");
428 static unsigned si_get_num_vs_user_sgprs(struct si_shader
*shader
,
429 unsigned num_always_on_user_sgprs
)
431 struct si_shader_selector
*vs
=
432 shader
->previous_stage_sel
? shader
->previous_stage_sel
: shader
->selector
;
433 unsigned num_vbos_in_user_sgprs
= vs
->num_vbos_in_user_sgprs
;
435 /* 1 SGPR is reserved for the vertex buffer pointer. */
436 assert(num_always_on_user_sgprs
<= SI_SGPR_VS_VB_DESCRIPTOR_FIRST
- 1);
438 if (num_vbos_in_user_sgprs
)
439 return SI_SGPR_VS_VB_DESCRIPTOR_FIRST
+ num_vbos_in_user_sgprs
* 4;
441 /* Add the pointer to VBO descriptors. */
442 return num_always_on_user_sgprs
+ 1;
445 /* Return VGPR_COMP_CNT for the API vertex shader. This can be hw LS, LSHS, ES, ESGS, VS. */
446 static unsigned si_get_vs_vgpr_comp_cnt(struct si_screen
*sscreen
, struct si_shader
*shader
,
447 bool legacy_vs_prim_id
)
449 assert(shader
->selector
->type
== PIPE_SHADER_VERTEX
||
450 (shader
->previous_stage_sel
&& shader
->previous_stage_sel
->type
== PIPE_SHADER_VERTEX
));
452 /* GFX6-9 LS (VertexID, RelAutoindex, InstanceID / StepRate0(==1), ...).
453 * GFX6-9 ES,VS (VertexID, InstanceID / StepRate0(==1), VSPrimID, ...)
454 * GFX10 LS (VertexID, RelAutoindex, UserVGPR1, InstanceID).
455 * GFX10 ES,VS (VertexID, UserVGPR0, UserVGPR1 or VSPrimID, UserVGPR2 or
458 bool is_ls
= shader
->selector
->type
== PIPE_SHADER_TESS_CTRL
|| shader
->key
.as_ls
;
460 if (sscreen
->info
.chip_class
>= GFX10
&& shader
->info
.uses_instanceid
)
462 else if ((is_ls
&& shader
->info
.uses_instanceid
) || legacy_vs_prim_id
)
464 else if (is_ls
|| shader
->info
.uses_instanceid
)
470 static void si_shader_ls(struct si_screen
*sscreen
, struct si_shader
*shader
)
472 struct si_pm4_state
*pm4
;
475 assert(sscreen
->info
.chip_class
<= GFX8
);
477 pm4
= si_get_shader_pm4_state(shader
);
481 va
= shader
->bo
->gpu_address
;
482 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
484 si_pm4_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
485 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, S_00B524_MEM_BASE(va
>> 40));
487 shader
->config
.rsrc1
= S_00B528_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
488 S_00B528_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
489 S_00B528_VGPR_COMP_CNT(si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false)) |
490 S_00B528_DX10_CLAMP(1) | S_00B528_FLOAT_MODE(shader
->config
.float_mode
);
491 shader
->config
.rsrc2
=
492 S_00B52C_USER_SGPR(si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
)) |
493 S_00B52C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
496 static void si_shader_hs(struct si_screen
*sscreen
, struct si_shader
*shader
)
498 struct si_pm4_state
*pm4
;
501 pm4
= si_get_shader_pm4_state(shader
);
505 va
= shader
->bo
->gpu_address
;
506 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
508 if (sscreen
->info
.chip_class
>= GFX9
) {
509 if (sscreen
->info
.chip_class
>= GFX10
) {
510 si_pm4_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
511 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, S_00B524_MEM_BASE(va
>> 40));
513 si_pm4_set_reg(pm4
, R_00B410_SPI_SHADER_PGM_LO_LS
, va
>> 8);
514 si_pm4_set_reg(pm4
, R_00B414_SPI_SHADER_PGM_HI_LS
, S_00B414_MEM_BASE(va
>> 40));
517 unsigned num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_TCS_NUM_USER_SGPR
);
519 shader
->config
.rsrc2
= S_00B42C_USER_SGPR(num_user_sgprs
) |
520 S_00B42C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
522 if (sscreen
->info
.chip_class
>= GFX10
)
523 shader
->config
.rsrc2
|= S_00B42C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
525 shader
->config
.rsrc2
|= S_00B42C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
527 si_pm4_set_reg(pm4
, R_00B420_SPI_SHADER_PGM_LO_HS
, va
>> 8);
528 si_pm4_set_reg(pm4
, R_00B424_SPI_SHADER_PGM_HI_HS
, S_00B424_MEM_BASE(va
>> 40));
530 shader
->config
.rsrc2
= S_00B42C_USER_SGPR(GFX6_TCS_NUM_USER_SGPR
) | S_00B42C_OC_LDS_EN(1) |
531 S_00B42C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
535 pm4
, R_00B428_SPI_SHADER_PGM_RSRC1_HS
,
536 S_00B428_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ge_wave_size
== 32 ? 8 : 4)) |
537 (sscreen
->info
.chip_class
<= GFX9
? S_00B428_SGPRS((shader
->config
.num_sgprs
- 1) / 8)
539 S_00B428_DX10_CLAMP(1) | S_00B428_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
540 S_00B428_WGP_MODE(sscreen
->info
.chip_class
>= GFX10
) |
541 S_00B428_FLOAT_MODE(shader
->config
.float_mode
) |
542 S_00B428_LS_VGPR_COMP_CNT(sscreen
->info
.chip_class
>= GFX9
543 ? si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false)
546 if (sscreen
->info
.chip_class
<= GFX8
) {
547 si_pm4_set_reg(pm4
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
, shader
->config
.rsrc2
);
551 static void si_emit_shader_es(struct si_context
*sctx
)
553 struct si_shader
*shader
= sctx
->queued
.named
.es
->shader
;
554 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
559 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
560 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
561 shader
->selector
->esgs_itemsize
/ 4);
563 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
564 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
565 shader
->vgt_tf_param
);
567 if (shader
->vgt_vertex_reuse_block_cntl
)
568 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
569 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
570 shader
->vgt_vertex_reuse_block_cntl
);
572 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
573 sctx
->context_roll
= true;
576 static void si_shader_es(struct si_screen
*sscreen
, struct si_shader
*shader
)
578 struct si_pm4_state
*pm4
;
579 unsigned num_user_sgprs
;
580 unsigned vgpr_comp_cnt
;
584 assert(sscreen
->info
.chip_class
<= GFX8
);
586 pm4
= si_get_shader_pm4_state(shader
);
590 pm4
->atom
.emit
= si_emit_shader_es
;
591 va
= shader
->bo
->gpu_address
;
592 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
594 if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
595 vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
596 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
);
597 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
598 vgpr_comp_cnt
= shader
->selector
->info
.uses_primid
? 3 : 2;
599 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
601 unreachable("invalid shader selector type");
603 oc_lds_en
= shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
? 1 : 0;
605 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
606 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, S_00B324_MEM_BASE(va
>> 40));
607 si_pm4_set_reg(pm4
, R_00B328_SPI_SHADER_PGM_RSRC1_ES
,
608 S_00B328_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
609 S_00B328_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
610 S_00B328_VGPR_COMP_CNT(vgpr_comp_cnt
) | S_00B328_DX10_CLAMP(1) |
611 S_00B328_FLOAT_MODE(shader
->config
.float_mode
));
612 si_pm4_set_reg(pm4
, R_00B32C_SPI_SHADER_PGM_RSRC2_ES
,
613 S_00B32C_USER_SGPR(num_user_sgprs
) | S_00B32C_OC_LDS_EN(oc_lds_en
) |
614 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
616 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
617 si_set_tesseval_regs(sscreen
, shader
->selector
, pm4
);
619 polaris_set_vgt_vertex_reuse(sscreen
, shader
->selector
, shader
, pm4
);
622 void gfx9_get_gs_info(struct si_shader_selector
*es
, struct si_shader_selector
*gs
,
623 struct gfx9_gs_info
*out
)
625 unsigned gs_num_invocations
= MAX2(gs
->gs_num_invocations
, 1);
626 unsigned input_prim
= gs
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
627 bool uses_adjacency
=
628 input_prim
>= PIPE_PRIM_LINES_ADJACENCY
&& input_prim
<= PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
;
630 /* All these are in dwords: */
631 /* We can't allow using the whole LDS, because GS waves compete with
632 * other shader stages for LDS space. */
633 const unsigned max_lds_size
= 8 * 1024;
634 const unsigned esgs_itemsize
= es
->esgs_itemsize
/ 4;
635 unsigned esgs_lds_size
;
637 /* All these are per subgroup: */
638 const unsigned max_out_prims
= 32 * 1024;
639 const unsigned max_es_verts
= 255;
640 const unsigned ideal_gs_prims
= 64;
641 unsigned max_gs_prims
, gs_prims
;
642 unsigned min_es_verts
, es_verts
, worst_case_es_verts
;
644 if (uses_adjacency
|| gs_num_invocations
> 1)
645 max_gs_prims
= 127 / gs_num_invocations
;
649 /* MAX_PRIMS_PER_SUBGROUP = gs_prims * max_vert_out * gs_invocations.
650 * Make sure we don't go over the maximum value.
652 if (gs
->gs_max_out_vertices
> 0) {
654 MIN2(max_gs_prims
, max_out_prims
/ (gs
->gs_max_out_vertices
* gs_num_invocations
));
656 assert(max_gs_prims
> 0);
658 /* If the primitive has adjacency, halve the number of vertices
659 * that will be reused in multiple primitives.
661 min_es_verts
= gs
->gs_input_verts_per_prim
/ (uses_adjacency
? 2 : 1);
663 gs_prims
= MIN2(ideal_gs_prims
, max_gs_prims
);
664 worst_case_es_verts
= MIN2(min_es_verts
* gs_prims
, max_es_verts
);
666 /* Compute ESGS LDS size based on the worst case number of ES vertices
667 * needed to create the target number of GS prims per subgroup.
669 esgs_lds_size
= esgs_itemsize
* worst_case_es_verts
;
671 /* If total LDS usage is too big, refactor partitions based on ratio
672 * of ESGS item sizes.
674 if (esgs_lds_size
> max_lds_size
) {
675 /* Our target GS Prims Per Subgroup was too large. Calculate
676 * the maximum number of GS Prims Per Subgroup that will fit
677 * into LDS, capped by the maximum that the hardware can support.
679 gs_prims
= MIN2((max_lds_size
/ (esgs_itemsize
* min_es_verts
)), max_gs_prims
);
680 assert(gs_prims
> 0);
681 worst_case_es_verts
= MIN2(min_es_verts
* gs_prims
, max_es_verts
);
683 esgs_lds_size
= esgs_itemsize
* worst_case_es_verts
;
684 assert(esgs_lds_size
<= max_lds_size
);
687 /* Now calculate remaining ESGS information. */
689 es_verts
= MIN2(esgs_lds_size
/ esgs_itemsize
, max_es_verts
);
691 es_verts
= max_es_verts
;
693 /* Vertices for adjacency primitives are not always reused, so restore
694 * it for ES_VERTS_PER_SUBGRP.
696 min_es_verts
= gs
->gs_input_verts_per_prim
;
698 /* For normal primitives, the VGT only checks if they are past the ES
699 * verts per subgroup after allocating a full GS primitive and if they
700 * are, kick off a new subgroup. But if those additional ES verts are
701 * unique (e.g. not reused) we need to make sure there is enough LDS
702 * space to account for those ES verts beyond ES_VERTS_PER_SUBGRP.
704 es_verts
-= min_es_verts
- 1;
706 out
->es_verts_per_subgroup
= es_verts
;
707 out
->gs_prims_per_subgroup
= gs_prims
;
708 out
->gs_inst_prims_in_subgroup
= gs_prims
* gs_num_invocations
;
709 out
->max_prims_per_subgroup
= out
->gs_inst_prims_in_subgroup
* gs
->gs_max_out_vertices
;
710 out
->esgs_ring_size
= 4 * esgs_lds_size
;
712 assert(out
->max_prims_per_subgroup
<= max_out_prims
);
715 static void si_emit_shader_gs(struct si_context
*sctx
)
717 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
718 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
723 /* R_028A60_VGT_GSVS_RING_OFFSET_1, R_028A64_VGT_GSVS_RING_OFFSET_2
724 * R_028A68_VGT_GSVS_RING_OFFSET_3 */
725 radeon_opt_set_context_reg3(
726 sctx
, R_028A60_VGT_GSVS_RING_OFFSET_1
, SI_TRACKED_VGT_GSVS_RING_OFFSET_1
,
727 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_1
, shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_2
,
728 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_3
);
730 /* R_028AB0_VGT_GSVS_RING_ITEMSIZE */
731 radeon_opt_set_context_reg(sctx
, R_028AB0_VGT_GSVS_RING_ITEMSIZE
,
732 SI_TRACKED_VGT_GSVS_RING_ITEMSIZE
,
733 shader
->ctx_reg
.gs
.vgt_gsvs_ring_itemsize
);
735 /* R_028B38_VGT_GS_MAX_VERT_OUT */
736 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
737 shader
->ctx_reg
.gs
.vgt_gs_max_vert_out
);
739 /* R_028B5C_VGT_GS_VERT_ITEMSIZE, R_028B60_VGT_GS_VERT_ITEMSIZE_1
740 * R_028B64_VGT_GS_VERT_ITEMSIZE_2, R_028B68_VGT_GS_VERT_ITEMSIZE_3 */
741 radeon_opt_set_context_reg4(
742 sctx
, R_028B5C_VGT_GS_VERT_ITEMSIZE
, SI_TRACKED_VGT_GS_VERT_ITEMSIZE
,
743 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize
, shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_1
,
744 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_2
, shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_3
);
746 /* R_028B90_VGT_GS_INSTANCE_CNT */
747 radeon_opt_set_context_reg(sctx
, R_028B90_VGT_GS_INSTANCE_CNT
, SI_TRACKED_VGT_GS_INSTANCE_CNT
,
748 shader
->ctx_reg
.gs
.vgt_gs_instance_cnt
);
750 if (sctx
->chip_class
>= GFX9
) {
751 /* R_028A44_VGT_GS_ONCHIP_CNTL */
752 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
, SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
753 shader
->ctx_reg
.gs
.vgt_gs_onchip_cntl
);
754 /* R_028A94_VGT_GS_MAX_PRIMS_PER_SUBGROUP */
755 radeon_opt_set_context_reg(sctx
, R_028A94_VGT_GS_MAX_PRIMS_PER_SUBGROUP
,
756 SI_TRACKED_VGT_GS_MAX_PRIMS_PER_SUBGROUP
,
757 shader
->ctx_reg
.gs
.vgt_gs_max_prims_per_subgroup
);
758 /* R_028AAC_VGT_ESGS_RING_ITEMSIZE */
759 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
760 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
761 shader
->ctx_reg
.gs
.vgt_esgs_ring_itemsize
);
763 if (shader
->key
.part
.gs
.es
->type
== PIPE_SHADER_TESS_EVAL
)
764 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
765 shader
->vgt_tf_param
);
766 if (shader
->vgt_vertex_reuse_block_cntl
)
767 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
768 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
769 shader
->vgt_vertex_reuse_block_cntl
);
772 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
773 sctx
->context_roll
= true;
776 static void si_shader_gs(struct si_screen
*sscreen
, struct si_shader
*shader
)
778 struct si_shader_selector
*sel
= shader
->selector
;
779 const ubyte
*num_components
= sel
->info
.num_stream_output_components
;
780 unsigned gs_num_invocations
= sel
->gs_num_invocations
;
781 struct si_pm4_state
*pm4
;
783 unsigned max_stream
= sel
->max_gs_stream
;
786 pm4
= si_get_shader_pm4_state(shader
);
790 pm4
->atom
.emit
= si_emit_shader_gs
;
792 offset
= num_components
[0] * sel
->gs_max_out_vertices
;
793 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_1
= offset
;
796 offset
+= num_components
[1] * sel
->gs_max_out_vertices
;
797 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_2
= offset
;
800 offset
+= num_components
[2] * sel
->gs_max_out_vertices
;
801 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_3
= offset
;
804 offset
+= num_components
[3] * sel
->gs_max_out_vertices
;
805 shader
->ctx_reg
.gs
.vgt_gsvs_ring_itemsize
= offset
;
807 /* The GSVS_RING_ITEMSIZE register takes 15 bits */
808 assert(offset
< (1 << 15));
810 shader
->ctx_reg
.gs
.vgt_gs_max_vert_out
= sel
->gs_max_out_vertices
;
812 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize
= num_components
[0];
813 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_1
= (max_stream
>= 1) ? num_components
[1] : 0;
814 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_2
= (max_stream
>= 2) ? num_components
[2] : 0;
815 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_3
= (max_stream
>= 3) ? num_components
[3] : 0;
817 shader
->ctx_reg
.gs
.vgt_gs_instance_cnt
=
818 S_028B90_CNT(MIN2(gs_num_invocations
, 127)) | S_028B90_ENABLE(gs_num_invocations
> 0);
820 va
= shader
->bo
->gpu_address
;
821 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
823 if (sscreen
->info
.chip_class
>= GFX9
) {
824 unsigned input_prim
= sel
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
825 unsigned es_type
= shader
->key
.part
.gs
.es
->type
;
826 unsigned es_vgpr_comp_cnt
, gs_vgpr_comp_cnt
;
828 if (es_type
== PIPE_SHADER_VERTEX
) {
829 es_vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
830 } else if (es_type
== PIPE_SHADER_TESS_EVAL
)
831 es_vgpr_comp_cnt
= shader
->key
.part
.gs
.es
->info
.uses_primid
? 3 : 2;
833 unreachable("invalid shader selector type");
835 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
836 * VGPR[0:4] are always loaded.
838 if (sel
->info
.uses_invocationid
)
839 gs_vgpr_comp_cnt
= 3; /* VGPR3 contains InvocationID. */
840 else if (sel
->info
.uses_primid
)
841 gs_vgpr_comp_cnt
= 2; /* VGPR2 contains PrimitiveID. */
842 else if (input_prim
>= PIPE_PRIM_TRIANGLES
)
843 gs_vgpr_comp_cnt
= 1; /* VGPR1 contains offsets 2, 3 */
845 gs_vgpr_comp_cnt
= 0; /* VGPR0 contains offsets 0, 1 */
847 unsigned num_user_sgprs
;
848 if (es_type
== PIPE_SHADER_VERTEX
)
849 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_VSGS_NUM_USER_SGPR
);
851 num_user_sgprs
= GFX9_TESGS_NUM_USER_SGPR
;
853 if (sscreen
->info
.chip_class
>= GFX10
) {
854 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
855 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, S_00B324_MEM_BASE(va
>> 40));
857 si_pm4_set_reg(pm4
, R_00B210_SPI_SHADER_PGM_LO_ES
, va
>> 8);
858 si_pm4_set_reg(pm4
, R_00B214_SPI_SHADER_PGM_HI_ES
, S_00B214_MEM_BASE(va
>> 40));
861 uint32_t rsrc1
= S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / 4) | S_00B228_DX10_CLAMP(1) |
862 S_00B228_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
863 S_00B228_WGP_MODE(sscreen
->info
.chip_class
>= GFX10
) |
864 S_00B228_FLOAT_MODE(shader
->config
.float_mode
) |
865 S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt
);
866 uint32_t rsrc2
= S_00B22C_USER_SGPR(num_user_sgprs
) |
867 S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt
) |
868 S_00B22C_OC_LDS_EN(es_type
== PIPE_SHADER_TESS_EVAL
) |
869 S_00B22C_LDS_SIZE(shader
->config
.lds_size
) |
870 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
872 if (sscreen
->info
.chip_class
>= GFX10
) {
873 rsrc2
|= S_00B22C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
875 rsrc1
|= S_00B228_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
876 rsrc2
|= S_00B22C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
879 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
, rsrc1
);
880 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
, rsrc2
);
882 if (sscreen
->info
.chip_class
>= GFX10
) {
883 si_pm4_set_reg(pm4
, R_00B204_SPI_SHADER_PGM_RSRC4_GS
,
884 S_00B204_CU_EN(0xffff) | S_00B204_SPI_SHADER_LATE_ALLOC_GS_GFX10(0));
887 shader
->ctx_reg
.gs
.vgt_gs_onchip_cntl
=
888 S_028A44_ES_VERTS_PER_SUBGRP(shader
->gs_info
.es_verts_per_subgroup
) |
889 S_028A44_GS_PRIMS_PER_SUBGRP(shader
->gs_info
.gs_prims_per_subgroup
) |
890 S_028A44_GS_INST_PRIMS_IN_SUBGRP(shader
->gs_info
.gs_inst_prims_in_subgroup
);
891 shader
->ctx_reg
.gs
.vgt_gs_max_prims_per_subgroup
=
892 S_028A94_MAX_PRIMS_PER_SUBGROUP(shader
->gs_info
.max_prims_per_subgroup
);
893 shader
->ctx_reg
.gs
.vgt_esgs_ring_itemsize
= shader
->key
.part
.gs
.es
->esgs_itemsize
/ 4;
895 if (es_type
== PIPE_SHADER_TESS_EVAL
)
896 si_set_tesseval_regs(sscreen
, shader
->key
.part
.gs
.es
, pm4
);
898 polaris_set_vgt_vertex_reuse(sscreen
, shader
->key
.part
.gs
.es
, NULL
, pm4
);
900 si_pm4_set_reg(pm4
, R_00B220_SPI_SHADER_PGM_LO_GS
, va
>> 8);
901 si_pm4_set_reg(pm4
, R_00B224_SPI_SHADER_PGM_HI_GS
, S_00B224_MEM_BASE(va
>> 40));
903 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
904 S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
905 S_00B228_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
906 S_00B228_DX10_CLAMP(1) | S_00B228_FLOAT_MODE(shader
->config
.float_mode
));
907 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
908 S_00B22C_USER_SGPR(GFX6_GS_NUM_USER_SGPR
) |
909 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
913 static void gfx10_emit_ge_pc_alloc(struct si_context
*sctx
, unsigned value
)
915 enum si_tracked_reg reg
= SI_TRACKED_GE_PC_ALLOC
;
917 if (((sctx
->tracked_regs
.reg_saved
>> reg
) & 0x1) != 0x1 ||
918 sctx
->tracked_regs
.reg_value
[reg
] != value
) {
919 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
921 if (sctx
->family
== CHIP_NAVI10
|| sctx
->family
== CHIP_NAVI12
||
922 sctx
->family
== CHIP_NAVI14
) {
923 /* SQ_NON_EVENT must be emitted before GE_PC_ALLOC is written. */
924 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
925 radeon_emit(cs
, EVENT_TYPE(V_028A90_SQ_NON_EVENT
) | EVENT_INDEX(0));
928 radeon_set_uconfig_reg(cs
, R_030980_GE_PC_ALLOC
, value
);
930 sctx
->tracked_regs
.reg_saved
|= 0x1ull
<< reg
;
931 sctx
->tracked_regs
.reg_value
[reg
] = value
;
935 /* Common tail code for NGG primitive shaders. */
936 static void gfx10_emit_shader_ngg_tail(struct si_context
*sctx
, struct si_shader
*shader
,
937 unsigned initial_cdw
)
939 radeon_opt_set_context_reg(sctx
, R_0287FC_GE_MAX_OUTPUT_PER_SUBGROUP
,
940 SI_TRACKED_GE_MAX_OUTPUT_PER_SUBGROUP
,
941 shader
->ctx_reg
.ngg
.ge_max_output_per_subgroup
);
942 radeon_opt_set_context_reg(sctx
, R_028B4C_GE_NGG_SUBGRP_CNTL
, SI_TRACKED_GE_NGG_SUBGRP_CNTL
,
943 shader
->ctx_reg
.ngg
.ge_ngg_subgrp_cntl
);
944 radeon_opt_set_context_reg(sctx
, R_028A84_VGT_PRIMITIVEID_EN
, SI_TRACKED_VGT_PRIMITIVEID_EN
,
945 shader
->ctx_reg
.ngg
.vgt_primitiveid_en
);
946 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
, SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
947 shader
->ctx_reg
.ngg
.vgt_gs_onchip_cntl
);
948 radeon_opt_set_context_reg(sctx
, R_028B90_VGT_GS_INSTANCE_CNT
, SI_TRACKED_VGT_GS_INSTANCE_CNT
,
949 shader
->ctx_reg
.ngg
.vgt_gs_instance_cnt
);
950 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
951 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
952 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
);
953 radeon_opt_set_context_reg(sctx
, R_0286C4_SPI_VS_OUT_CONFIG
, SI_TRACKED_SPI_VS_OUT_CONFIG
,
954 shader
->ctx_reg
.ngg
.spi_vs_out_config
);
955 radeon_opt_set_context_reg2(
956 sctx
, R_028708_SPI_SHADER_IDX_FORMAT
, SI_TRACKED_SPI_SHADER_IDX_FORMAT
,
957 shader
->ctx_reg
.ngg
.spi_shader_idx_format
, shader
->ctx_reg
.ngg
.spi_shader_pos_format
);
958 radeon_opt_set_context_reg(sctx
, R_028818_PA_CL_VTE_CNTL
, SI_TRACKED_PA_CL_VTE_CNTL
,
959 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
);
960 radeon_opt_set_context_reg(sctx
, R_028838_PA_CL_NGG_CNTL
, SI_TRACKED_PA_CL_NGG_CNTL
,
961 shader
->ctx_reg
.ngg
.pa_cl_ngg_cntl
);
963 radeon_opt_set_context_reg_rmw(sctx
, R_02881C_PA_CL_VS_OUT_CNTL
,
964 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS
, shader
->pa_cl_vs_out_cntl
,
965 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS_MASK
);
967 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
968 sctx
->context_roll
= true;
970 /* GE_PC_ALLOC is not a context register, so it doesn't cause a context roll. */
971 gfx10_emit_ge_pc_alloc(sctx
, shader
->ctx_reg
.ngg
.ge_pc_alloc
);
974 static void gfx10_emit_shader_ngg_notess_nogs(struct si_context
*sctx
)
976 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
977 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
982 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
985 static void gfx10_emit_shader_ngg_tess_nogs(struct si_context
*sctx
)
987 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
988 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
993 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
994 shader
->vgt_tf_param
);
996 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
999 static void gfx10_emit_shader_ngg_notess_gs(struct si_context
*sctx
)
1001 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
1002 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1007 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
1008 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
);
1010 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
1013 static void gfx10_emit_shader_ngg_tess_gs(struct si_context
*sctx
)
1015 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
1016 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1021 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
1022 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
);
1023 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
1024 shader
->vgt_tf_param
);
1026 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
1029 unsigned si_get_input_prim(const struct si_shader_selector
*gs
)
1031 if (gs
->type
== PIPE_SHADER_GEOMETRY
)
1032 return gs
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
1034 if (gs
->type
== PIPE_SHADER_TESS_EVAL
) {
1035 if (gs
->info
.properties
[TGSI_PROPERTY_TES_POINT_MODE
])
1036 return PIPE_PRIM_POINTS
;
1037 if (gs
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
] == PIPE_PRIM_LINES
)
1038 return PIPE_PRIM_LINES
;
1039 return PIPE_PRIM_TRIANGLES
;
1042 /* TODO: Set this correctly if the primitive type is set in the shader key. */
1043 return PIPE_PRIM_TRIANGLES
; /* worst case for all callers */
1046 static unsigned si_get_vs_out_cntl(const struct si_shader_selector
*sel
, bool ngg
)
1048 bool misc_vec_ena
= sel
->info
.writes_psize
|| (sel
->info
.writes_edgeflag
&& !ngg
) ||
1049 sel
->info
.writes_layer
|| sel
->info
.writes_viewport_index
;
1050 return S_02881C_USE_VTX_POINT_SIZE(sel
->info
.writes_psize
) |
1051 S_02881C_USE_VTX_EDGE_FLAG(sel
->info
.writes_edgeflag
&& !ngg
) |
1052 S_02881C_USE_VTX_RENDER_TARGET_INDX(sel
->info
.writes_layer
) |
1053 S_02881C_USE_VTX_VIEWPORT_INDX(sel
->info
.writes_viewport_index
) |
1054 S_02881C_VS_OUT_MISC_VEC_ENA(misc_vec_ena
) |
1055 S_02881C_VS_OUT_MISC_SIDE_BUS_ENA(misc_vec_ena
);
1059 * Prepare the PM4 image for \p shader, which will run as a merged ESGS shader
1062 static void gfx10_shader_ngg(struct si_screen
*sscreen
, struct si_shader
*shader
)
1064 const struct si_shader_selector
*gs_sel
= shader
->selector
;
1065 const struct si_shader_info
*gs_info
= &gs_sel
->info
;
1066 enum pipe_shader_type gs_type
= shader
->selector
->type
;
1067 const struct si_shader_selector
*es_sel
=
1068 shader
->previous_stage_sel
? shader
->previous_stage_sel
: shader
->selector
;
1069 const struct si_shader_info
*es_info
= &es_sel
->info
;
1070 enum pipe_shader_type es_type
= es_sel
->type
;
1071 unsigned num_user_sgprs
;
1072 unsigned nparams
, es_vgpr_comp_cnt
, gs_vgpr_comp_cnt
;
1074 unsigned window_space
= gs_info
->properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
1075 bool es_enable_prim_id
= shader
->key
.mono
.u
.vs_export_prim_id
|| es_info
->uses_primid
;
1076 unsigned gs_num_invocations
= MAX2(gs_sel
->gs_num_invocations
, 1);
1077 unsigned input_prim
= si_get_input_prim(gs_sel
);
1078 bool break_wave_at_eoi
= false;
1079 struct si_pm4_state
*pm4
= si_get_shader_pm4_state(shader
);
1083 if (es_type
== PIPE_SHADER_TESS_EVAL
) {
1084 pm4
->atom
.emit
= gs_type
== PIPE_SHADER_GEOMETRY
? gfx10_emit_shader_ngg_tess_gs
1085 : gfx10_emit_shader_ngg_tess_nogs
;
1087 pm4
->atom
.emit
= gs_type
== PIPE_SHADER_GEOMETRY
? gfx10_emit_shader_ngg_notess_gs
1088 : gfx10_emit_shader_ngg_notess_nogs
;
1091 va
= shader
->bo
->gpu_address
;
1092 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
1094 if (es_type
== PIPE_SHADER_VERTEX
) {
1095 es_vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
1097 if (es_info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]) {
1099 SI_SGPR_VS_BLIT_DATA
+ es_info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
1101 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_VSGS_NUM_USER_SGPR
);
1104 assert(es_type
== PIPE_SHADER_TESS_EVAL
);
1105 es_vgpr_comp_cnt
= es_enable_prim_id
? 3 : 2;
1106 num_user_sgprs
= GFX9_TESGS_NUM_USER_SGPR
;
1108 if (es_enable_prim_id
|| gs_info
->uses_primid
)
1109 break_wave_at_eoi
= true;
1112 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
1113 * VGPR[0:4] are always loaded.
1115 * Vertex shaders always need to load VGPR3, because they need to
1116 * pass edge flags for decomposed primitives (such as quads) to the PA
1117 * for the GL_LINE polygon mode to skip rendering lines on inner edges.
1119 if (gs_info
->uses_invocationid
||
1120 (gs_type
== PIPE_SHADER_VERTEX
&& !gfx10_is_ngg_passthrough(shader
)))
1121 gs_vgpr_comp_cnt
= 3; /* VGPR3 contains InvocationID, edge flags. */
1122 else if ((gs_type
== PIPE_SHADER_GEOMETRY
&& gs_info
->uses_primid
) ||
1123 (gs_type
== PIPE_SHADER_VERTEX
&& shader
->key
.mono
.u
.vs_export_prim_id
))
1124 gs_vgpr_comp_cnt
= 2; /* VGPR2 contains PrimitiveID. */
1125 else if (input_prim
>= PIPE_PRIM_TRIANGLES
&& !gfx10_is_ngg_passthrough(shader
))
1126 gs_vgpr_comp_cnt
= 1; /* VGPR1 contains offsets 2, 3 */
1128 gs_vgpr_comp_cnt
= 0; /* VGPR0 contains offsets 0, 1 */
1130 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
1131 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, va
>> 40);
1133 pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
1134 S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ge_wave_size
== 32 ? 8 : 4)) |
1135 S_00B228_FLOAT_MODE(shader
->config
.float_mode
) | S_00B228_DX10_CLAMP(1) |
1136 S_00B228_MEM_ORDERED(1) | S_00B228_WGP_MODE(1) |
1137 S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt
));
1138 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
1139 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0) |
1140 S_00B22C_USER_SGPR(num_user_sgprs
) |
1141 S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt
) |
1142 S_00B22C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5) |
1143 S_00B22C_OC_LDS_EN(es_type
== PIPE_SHADER_TESS_EVAL
) |
1144 S_00B22C_LDS_SIZE(shader
->config
.lds_size
));
1146 /* Determine LATE_ALLOC_GS. */
1147 unsigned num_cu_per_sh
= sscreen
->info
.num_good_cu_per_sh
;
1148 unsigned late_alloc_wave64
; /* The limit is per SH. */
1150 /* For Wave32, the hw will launch twice the number of late
1151 * alloc waves, so 1 == 2x wave32.
1153 * Don't use late alloc for NGG on Navi14 due to a hw bug.
1155 if (sscreen
->info
.family
== CHIP_NAVI14
|| !sscreen
->info
.use_late_alloc
)
1156 late_alloc_wave64
= 0;
1157 else if (num_cu_per_sh
<= 6)
1158 late_alloc_wave64
= num_cu_per_sh
- 2; /* All CUs enabled */
1159 else if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_ALL
)
1160 late_alloc_wave64
= (num_cu_per_sh
- 2) * 6;
1162 late_alloc_wave64
= (num_cu_per_sh
- 2) * 4;
1164 /* Limit LATE_ALLOC_GS for prevent a hang (hw bug). */
1165 if (sscreen
->info
.family
== CHIP_NAVI10
|| sscreen
->info
.family
== CHIP_NAVI12
||
1166 sscreen
->info
.family
== CHIP_NAVI14
)
1167 late_alloc_wave64
= MIN2(late_alloc_wave64
, 64);
1170 pm4
, R_00B204_SPI_SHADER_PGM_RSRC4_GS
,
1171 S_00B204_CU_EN(0xffff) | S_00B204_SPI_SHADER_LATE_ALLOC_GS_GFX10(late_alloc_wave64
));
1173 nparams
= MAX2(shader
->info
.nr_param_exports
, 1);
1174 shader
->ctx_reg
.ngg
.spi_vs_out_config
=
1175 S_0286C4_VS_EXPORT_COUNT(nparams
- 1) |
1176 S_0286C4_NO_PC_EXPORT(shader
->info
.nr_param_exports
== 0);
1178 shader
->ctx_reg
.ngg
.spi_shader_idx_format
=
1179 S_028708_IDX0_EXPORT_FORMAT(V_028708_SPI_SHADER_1COMP
);
1180 shader
->ctx_reg
.ngg
.spi_shader_pos_format
=
1181 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
1182 S_02870C_POS1_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 1 ? V_02870C_SPI_SHADER_4COMP
1183 : V_02870C_SPI_SHADER_NONE
) |
1184 S_02870C_POS2_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 2 ? V_02870C_SPI_SHADER_4COMP
1185 : V_02870C_SPI_SHADER_NONE
) |
1186 S_02870C_POS3_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 3 ? V_02870C_SPI_SHADER_4COMP
1187 : V_02870C_SPI_SHADER_NONE
);
1189 shader
->ctx_reg
.ngg
.vgt_primitiveid_en
=
1190 S_028A84_PRIMITIVEID_EN(es_enable_prim_id
) |
1191 S_028A84_NGG_DISABLE_PROVOK_REUSE(shader
->key
.mono
.u
.vs_export_prim_id
||
1192 gs_sel
->info
.writes_primid
);
1194 if (gs_type
== PIPE_SHADER_GEOMETRY
) {
1195 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
= es_sel
->esgs_itemsize
/ 4;
1196 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
= gs_sel
->gs_max_out_vertices
;
1198 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
= 1;
1201 if (es_type
== PIPE_SHADER_TESS_EVAL
)
1202 si_set_tesseval_regs(sscreen
, es_sel
, pm4
);
1204 shader
->ctx_reg
.ngg
.vgt_gs_onchip_cntl
=
1205 S_028A44_ES_VERTS_PER_SUBGRP(shader
->ngg
.hw_max_esverts
) |
1206 S_028A44_GS_PRIMS_PER_SUBGRP(shader
->ngg
.max_gsprims
) |
1207 S_028A44_GS_INST_PRIMS_IN_SUBGRP(shader
->ngg
.max_gsprims
* gs_num_invocations
);
1208 shader
->ctx_reg
.ngg
.ge_max_output_per_subgroup
=
1209 S_0287FC_MAX_VERTS_PER_SUBGROUP(shader
->ngg
.max_out_verts
);
1210 shader
->ctx_reg
.ngg
.ge_ngg_subgrp_cntl
= S_028B4C_PRIM_AMP_FACTOR(shader
->ngg
.prim_amp_factor
) |
1211 S_028B4C_THDS_PER_SUBGRP(0); /* for fast launch */
1212 shader
->ctx_reg
.ngg
.vgt_gs_instance_cnt
=
1213 S_028B90_CNT(gs_num_invocations
) | S_028B90_ENABLE(gs_num_invocations
> 1) |
1214 S_028B90_EN_MAX_VERT_OUT_PER_GS_INSTANCE(shader
->ngg
.max_vert_out_per_gs_instance
);
1216 /* Always output hw-generated edge flags and pass them via the prim
1217 * export to prevent drawing lines on internal edges of decomposed
1218 * primitives (such as quads) with polygon mode = lines. Only VS needs
1221 shader
->ctx_reg
.ngg
.pa_cl_ngg_cntl
=
1222 S_028838_INDEX_BUF_EDGE_FLAG_ENA(gs_type
== PIPE_SHADER_VERTEX
);
1223 shader
->pa_cl_vs_out_cntl
= si_get_vs_out_cntl(gs_sel
, true);
1225 /* Oversubscribe PC. This improves performance when there are too many varyings. */
1226 float oversub_pc_factor
= 0.25;
1228 if (shader
->key
.opt
.ngg_culling
) {
1229 /* Be more aggressive with NGG culling. */
1230 if (shader
->info
.nr_param_exports
> 4)
1231 oversub_pc_factor
= 1;
1232 else if (shader
->info
.nr_param_exports
> 2)
1233 oversub_pc_factor
= 0.75;
1235 oversub_pc_factor
= 0.5;
1238 unsigned oversub_pc_lines
= sscreen
->info
.pc_lines
* oversub_pc_factor
;
1239 shader
->ctx_reg
.ngg
.ge_pc_alloc
= S_030980_OVERSUB_EN(sscreen
->info
.use_late_alloc
) |
1240 S_030980_NUM_PC_LINES(oversub_pc_lines
- 1);
1242 if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_TRI_LIST
) {
1243 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1244 S_03096C_VERT_GRP_SIZE(shader
->ngg
.max_gsprims
* 3);
1245 } else if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_TRI_STRIP
) {
1246 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1247 S_03096C_VERT_GRP_SIZE(shader
->ngg
.max_gsprims
+ 2);
1249 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1250 S_03096C_VERT_GRP_SIZE(256) | /* 256 = disable vertex grouping */
1251 S_03096C_BREAK_WAVE_AT_EOI(break_wave_at_eoi
);
1253 /* Bug workaround for a possible hang with non-tessellation cases.
1254 * Tessellation always sets GE_CNTL.VERT_GRP_SIZE = 0
1256 * Requirement: GE_CNTL.VERT_GRP_SIZE = VGT_GS_ONCHIP_CNTL.ES_VERTS_PER_SUBGRP - 5
1258 if ((sscreen
->info
.family
== CHIP_NAVI10
|| sscreen
->info
.family
== CHIP_NAVI12
||
1259 sscreen
->info
.family
== CHIP_NAVI14
) &&
1260 (es_type
== PIPE_SHADER_VERTEX
|| gs_type
== PIPE_SHADER_VERTEX
) && /* = no tess */
1261 shader
->ngg
.hw_max_esverts
!= 256) {
1262 shader
->ge_cntl
&= C_03096C_VERT_GRP_SIZE
;
1264 if (shader
->ngg
.hw_max_esverts
> 5) {
1265 shader
->ge_cntl
|= S_03096C_VERT_GRP_SIZE(shader
->ngg
.hw_max_esverts
- 5);
1271 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
= S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1);
1273 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
=
1274 S_028818_VTX_W0_FMT(1) | S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
1275 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
1276 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1);
1280 static void si_emit_shader_vs(struct si_context
*sctx
)
1282 struct si_shader
*shader
= sctx
->queued
.named
.vs
->shader
;
1283 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1288 radeon_opt_set_context_reg(sctx
, R_028A40_VGT_GS_MODE
, SI_TRACKED_VGT_GS_MODE
,
1289 shader
->ctx_reg
.vs
.vgt_gs_mode
);
1290 radeon_opt_set_context_reg(sctx
, R_028A84_VGT_PRIMITIVEID_EN
, SI_TRACKED_VGT_PRIMITIVEID_EN
,
1291 shader
->ctx_reg
.vs
.vgt_primitiveid_en
);
1293 if (sctx
->chip_class
<= GFX8
) {
1294 radeon_opt_set_context_reg(sctx
, R_028AB4_VGT_REUSE_OFF
, SI_TRACKED_VGT_REUSE_OFF
,
1295 shader
->ctx_reg
.vs
.vgt_reuse_off
);
1298 radeon_opt_set_context_reg(sctx
, R_0286C4_SPI_VS_OUT_CONFIG
, SI_TRACKED_SPI_VS_OUT_CONFIG
,
1299 shader
->ctx_reg
.vs
.spi_vs_out_config
);
1301 radeon_opt_set_context_reg(sctx
, R_02870C_SPI_SHADER_POS_FORMAT
,
1302 SI_TRACKED_SPI_SHADER_POS_FORMAT
,
1303 shader
->ctx_reg
.vs
.spi_shader_pos_format
);
1305 radeon_opt_set_context_reg(sctx
, R_028818_PA_CL_VTE_CNTL
, SI_TRACKED_PA_CL_VTE_CNTL
,
1306 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
);
1308 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
1309 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
1310 shader
->vgt_tf_param
);
1312 if (shader
->vgt_vertex_reuse_block_cntl
)
1313 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
1314 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
1315 shader
->vgt_vertex_reuse_block_cntl
);
1317 /* Required programming for tessellation. (legacy pipeline only) */
1318 if (sctx
->chip_class
== GFX10
&& shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
1319 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
, SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
1320 S_028A44_ES_VERTS_PER_SUBGRP(250) |
1321 S_028A44_GS_PRIMS_PER_SUBGRP(126) |
1322 S_028A44_GS_INST_PRIMS_IN_SUBGRP(126));
1325 if (sctx
->chip_class
>= GFX10
) {
1326 radeon_opt_set_context_reg_rmw(sctx
, R_02881C_PA_CL_VS_OUT_CNTL
,
1327 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS
, shader
->pa_cl_vs_out_cntl
,
1328 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS_MASK
);
1331 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
1332 sctx
->context_roll
= true;
1334 /* GE_PC_ALLOC is not a context register, so it doesn't cause a context roll. */
1335 if (sctx
->chip_class
>= GFX10
)
1336 gfx10_emit_ge_pc_alloc(sctx
, shader
->ctx_reg
.vs
.ge_pc_alloc
);
1340 * Compute the state for \p shader, which will run as a vertex shader on the
1343 * If \p gs is non-NULL, it points to the geometry shader for which this shader
1344 * is the copy shader.
1346 static void si_shader_vs(struct si_screen
*sscreen
, struct si_shader
*shader
,
1347 struct si_shader_selector
*gs
)
1349 const struct si_shader_info
*info
= &shader
->selector
->info
;
1350 struct si_pm4_state
*pm4
;
1351 unsigned num_user_sgprs
, vgpr_comp_cnt
;
1353 unsigned nparams
, oc_lds_en
;
1354 unsigned window_space
= info
->properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
1355 bool enable_prim_id
= shader
->key
.mono
.u
.vs_export_prim_id
|| info
->uses_primid
;
1357 pm4
= si_get_shader_pm4_state(shader
);
1361 pm4
->atom
.emit
= si_emit_shader_vs
;
1363 /* We always write VGT_GS_MODE in the VS state, because every switch
1364 * between different shader pipelines involving a different GS or no
1365 * GS at all involves a switch of the VS (different GS use different
1366 * copy shaders). On the other hand, when the API switches from a GS to
1367 * no GS and then back to the same GS used originally, the GS state is
1371 unsigned mode
= V_028A40_GS_OFF
;
1373 /* PrimID needs GS scenario A. */
1375 mode
= V_028A40_GS_SCENARIO_A
;
1377 shader
->ctx_reg
.vs
.vgt_gs_mode
= S_028A40_MODE(mode
);
1378 shader
->ctx_reg
.vs
.vgt_primitiveid_en
= enable_prim_id
;
1380 shader
->ctx_reg
.vs
.vgt_gs_mode
=
1381 ac_vgt_gs_mode(gs
->gs_max_out_vertices
, sscreen
->info
.chip_class
);
1382 shader
->ctx_reg
.vs
.vgt_primitiveid_en
= 0;
1385 if (sscreen
->info
.chip_class
<= GFX8
) {
1386 /* Reuse needs to be set off if we write oViewport. */
1387 shader
->ctx_reg
.vs
.vgt_reuse_off
= S_028AB4_REUSE_OFF(info
->writes_viewport_index
);
1390 va
= shader
->bo
->gpu_address
;
1391 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
1394 vgpr_comp_cnt
= 0; /* only VertexID is needed for GS-COPY. */
1395 num_user_sgprs
= SI_GSCOPY_NUM_USER_SGPR
;
1396 } else if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
1397 vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, enable_prim_id
);
1399 if (info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]) {
1400 num_user_sgprs
= SI_SGPR_VS_BLIT_DATA
+ info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
1402 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
);
1404 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
1405 vgpr_comp_cnt
= enable_prim_id
? 3 : 2;
1406 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
1408 unreachable("invalid shader selector type");
1410 /* VS is required to export at least one param. */
1411 nparams
= MAX2(shader
->info
.nr_param_exports
, 1);
1412 shader
->ctx_reg
.vs
.spi_vs_out_config
= S_0286C4_VS_EXPORT_COUNT(nparams
- 1);
1414 if (sscreen
->info
.chip_class
>= GFX10
) {
1415 shader
->ctx_reg
.vs
.spi_vs_out_config
|=
1416 S_0286C4_NO_PC_EXPORT(shader
->info
.nr_param_exports
== 0);
1419 shader
->ctx_reg
.vs
.spi_shader_pos_format
=
1420 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
1421 S_02870C_POS1_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 1 ? V_02870C_SPI_SHADER_4COMP
1422 : V_02870C_SPI_SHADER_NONE
) |
1423 S_02870C_POS2_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 2 ? V_02870C_SPI_SHADER_4COMP
1424 : V_02870C_SPI_SHADER_NONE
) |
1425 S_02870C_POS3_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 3 ? V_02870C_SPI_SHADER_4COMP
1426 : V_02870C_SPI_SHADER_NONE
);
1427 shader
->ctx_reg
.vs
.ge_pc_alloc
= S_030980_OVERSUB_EN(sscreen
->info
.use_late_alloc
) |
1428 S_030980_NUM_PC_LINES(sscreen
->info
.pc_lines
/ 4 - 1);
1429 shader
->pa_cl_vs_out_cntl
= si_get_vs_out_cntl(shader
->selector
, false);
1431 oc_lds_en
= shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
? 1 : 0;
1433 si_pm4_set_reg(pm4
, R_00B120_SPI_SHADER_PGM_LO_VS
, va
>> 8);
1434 si_pm4_set_reg(pm4
, R_00B124_SPI_SHADER_PGM_HI_VS
, S_00B124_MEM_BASE(va
>> 40));
1437 S_00B128_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ge_wave_size
== 32 ? 8 : 4)) |
1438 S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt
) | S_00B128_DX10_CLAMP(1) |
1439 S_00B128_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
1440 S_00B128_FLOAT_MODE(shader
->config
.float_mode
);
1441 uint32_t rsrc2
= S_00B12C_USER_SGPR(num_user_sgprs
) | S_00B12C_OC_LDS_EN(oc_lds_en
) |
1442 S_00B12C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
1444 if (sscreen
->info
.chip_class
>= GFX10
)
1445 rsrc2
|= S_00B12C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
1446 else if (sscreen
->info
.chip_class
== GFX9
)
1447 rsrc2
|= S_00B12C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
1449 if (sscreen
->info
.chip_class
<= GFX9
)
1450 rsrc1
|= S_00B128_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
1452 if (!sscreen
->use_ngg_streamout
) {
1453 rsrc2
|= S_00B12C_SO_BASE0_EN(!!shader
->selector
->so
.stride
[0]) |
1454 S_00B12C_SO_BASE1_EN(!!shader
->selector
->so
.stride
[1]) |
1455 S_00B12C_SO_BASE2_EN(!!shader
->selector
->so
.stride
[2]) |
1456 S_00B12C_SO_BASE3_EN(!!shader
->selector
->so
.stride
[3]) |
1457 S_00B12C_SO_EN(!!shader
->selector
->so
.num_outputs
);
1460 si_pm4_set_reg(pm4
, R_00B128_SPI_SHADER_PGM_RSRC1_VS
, rsrc1
);
1461 si_pm4_set_reg(pm4
, R_00B12C_SPI_SHADER_PGM_RSRC2_VS
, rsrc2
);
1464 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
= S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1);
1466 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
=
1467 S_028818_VTX_W0_FMT(1) | S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
1468 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
1469 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1);
1471 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
1472 si_set_tesseval_regs(sscreen
, shader
->selector
, pm4
);
1474 polaris_set_vgt_vertex_reuse(sscreen
, shader
->selector
, shader
, pm4
);
1477 static unsigned si_get_ps_num_interp(struct si_shader
*ps
)
1479 struct si_shader_info
*info
= &ps
->selector
->info
;
1480 unsigned num_colors
= !!(info
->colors_read
& 0x0f) + !!(info
->colors_read
& 0xf0);
1481 unsigned num_interp
=
1482 ps
->selector
->info
.num_inputs
+ (ps
->key
.part
.ps
.prolog
.color_two_side
? num_colors
: 0);
1484 assert(num_interp
<= 32);
1485 return MIN2(num_interp
, 32);
1488 static unsigned si_get_spi_shader_col_format(struct si_shader
*shader
)
1490 unsigned value
= shader
->key
.part
.ps
.epilog
.spi_shader_col_format
;
1491 unsigned i
, num_targets
= (util_last_bit(value
) + 3) / 4;
1493 /* If the i-th target format is set, all previous target formats must
1494 * be non-zero to avoid hangs.
1496 for (i
= 0; i
< num_targets
; i
++)
1497 if (!(value
& (0xf << (i
* 4))))
1498 value
|= V_028714_SPI_SHADER_32_R
<< (i
* 4);
1503 static void si_emit_shader_ps(struct si_context
*sctx
)
1505 struct si_shader
*shader
= sctx
->queued
.named
.ps
->shader
;
1506 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1511 /* R_0286CC_SPI_PS_INPUT_ENA, R_0286D0_SPI_PS_INPUT_ADDR*/
1512 radeon_opt_set_context_reg2(sctx
, R_0286CC_SPI_PS_INPUT_ENA
, SI_TRACKED_SPI_PS_INPUT_ENA
,
1513 shader
->ctx_reg
.ps
.spi_ps_input_ena
,
1514 shader
->ctx_reg
.ps
.spi_ps_input_addr
);
1516 radeon_opt_set_context_reg(sctx
, R_0286E0_SPI_BARYC_CNTL
, SI_TRACKED_SPI_BARYC_CNTL
,
1517 shader
->ctx_reg
.ps
.spi_baryc_cntl
);
1518 radeon_opt_set_context_reg(sctx
, R_0286D8_SPI_PS_IN_CONTROL
, SI_TRACKED_SPI_PS_IN_CONTROL
,
1519 shader
->ctx_reg
.ps
.spi_ps_in_control
);
1521 /* R_028710_SPI_SHADER_Z_FORMAT, R_028714_SPI_SHADER_COL_FORMAT */
1522 radeon_opt_set_context_reg2(sctx
, R_028710_SPI_SHADER_Z_FORMAT
, SI_TRACKED_SPI_SHADER_Z_FORMAT
,
1523 shader
->ctx_reg
.ps
.spi_shader_z_format
,
1524 shader
->ctx_reg
.ps
.spi_shader_col_format
);
1526 radeon_opt_set_context_reg(sctx
, R_02823C_CB_SHADER_MASK
, SI_TRACKED_CB_SHADER_MASK
,
1527 shader
->ctx_reg
.ps
.cb_shader_mask
);
1529 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
1530 sctx
->context_roll
= true;
1533 static void si_shader_ps(struct si_screen
*sscreen
, struct si_shader
*shader
)
1535 struct si_shader_info
*info
= &shader
->selector
->info
;
1536 struct si_pm4_state
*pm4
;
1537 unsigned spi_ps_in_control
, spi_shader_col_format
, cb_shader_mask
;
1538 unsigned spi_baryc_cntl
= S_0286E0_FRONT_FACE_ALL_BITS(1);
1540 unsigned input_ena
= shader
->config
.spi_ps_input_ena
;
1542 /* we need to enable at least one of them, otherwise we hang the GPU */
1543 assert(G_0286CC_PERSP_SAMPLE_ENA(input_ena
) || G_0286CC_PERSP_CENTER_ENA(input_ena
) ||
1544 G_0286CC_PERSP_CENTROID_ENA(input_ena
) || G_0286CC_PERSP_PULL_MODEL_ENA(input_ena
) ||
1545 G_0286CC_LINEAR_SAMPLE_ENA(input_ena
) || G_0286CC_LINEAR_CENTER_ENA(input_ena
) ||
1546 G_0286CC_LINEAR_CENTROID_ENA(input_ena
) || G_0286CC_LINE_STIPPLE_TEX_ENA(input_ena
));
1547 /* POS_W_FLOAT_ENA requires one of the perspective weights. */
1548 assert(!G_0286CC_POS_W_FLOAT_ENA(input_ena
) || G_0286CC_PERSP_SAMPLE_ENA(input_ena
) ||
1549 G_0286CC_PERSP_CENTER_ENA(input_ena
) || G_0286CC_PERSP_CENTROID_ENA(input_ena
) ||
1550 G_0286CC_PERSP_PULL_MODEL_ENA(input_ena
));
1552 /* Validate interpolation optimization flags (read as implications). */
1553 assert(!shader
->key
.part
.ps
.prolog
.bc_optimize_for_persp
||
1554 (G_0286CC_PERSP_CENTER_ENA(input_ena
) && G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1555 assert(!shader
->key
.part
.ps
.prolog
.bc_optimize_for_linear
||
1556 (G_0286CC_LINEAR_CENTER_ENA(input_ena
) && G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1557 assert(!shader
->key
.part
.ps
.prolog
.force_persp_center_interp
||
1558 (!G_0286CC_PERSP_SAMPLE_ENA(input_ena
) && !G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1559 assert(!shader
->key
.part
.ps
.prolog
.force_linear_center_interp
||
1560 (!G_0286CC_LINEAR_SAMPLE_ENA(input_ena
) && !G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1561 assert(!shader
->key
.part
.ps
.prolog
.force_persp_sample_interp
||
1562 (!G_0286CC_PERSP_CENTER_ENA(input_ena
) && !G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1563 assert(!shader
->key
.part
.ps
.prolog
.force_linear_sample_interp
||
1564 (!G_0286CC_LINEAR_CENTER_ENA(input_ena
) && !G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1566 /* Validate cases when the optimizations are off (read as implications). */
1567 assert(shader
->key
.part
.ps
.prolog
.bc_optimize_for_persp
||
1568 !G_0286CC_PERSP_CENTER_ENA(input_ena
) || !G_0286CC_PERSP_CENTROID_ENA(input_ena
));
1569 assert(shader
->key
.part
.ps
.prolog
.bc_optimize_for_linear
||
1570 !G_0286CC_LINEAR_CENTER_ENA(input_ena
) || !G_0286CC_LINEAR_CENTROID_ENA(input_ena
));
1572 pm4
= si_get_shader_pm4_state(shader
);
1576 pm4
->atom
.emit
= si_emit_shader_ps
;
1578 /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
1580 * 0 -> Position = pixel center
1581 * 1 -> Position = pixel centroid
1582 * 2 -> Position = at sample position
1584 * From GLSL 4.5 specification, section 7.1:
1585 * "The variable gl_FragCoord is available as an input variable from
1586 * within fragment shaders and it holds the window relative coordinates
1587 * (x, y, z, 1/w) values for the fragment. If multi-sampling, this
1588 * value can be for any location within the pixel, or one of the
1589 * fragment samples. The use of centroid does not further restrict
1590 * this value to be inside the current primitive."
1592 * Meaning that centroid has no effect and we can return anything within
1593 * the pixel. Thus, return the value at sample position, because that's
1594 * the most accurate one shaders can get.
1596 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_LOCATION(2);
1598 if (info
->properties
[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER
] == TGSI_FS_COORD_PIXEL_CENTER_INTEGER
)
1599 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_ULC(1);
1601 spi_shader_col_format
= si_get_spi_shader_col_format(shader
);
1602 cb_shader_mask
= ac_get_cb_shader_mask(spi_shader_col_format
);
1604 /* Ensure that some export memory is always allocated, for two reasons:
1606 * 1) Correctness: The hardware ignores the EXEC mask if no export
1607 * memory is allocated, so KILL and alpha test do not work correctly
1609 * 2) Performance: Every shader needs at least a NULL export, even when
1610 * it writes no color/depth output. The NULL export instruction
1611 * stalls without this setting.
1613 * Don't add this to CB_SHADER_MASK.
1615 * GFX10 supports pixel shaders without exports by setting both
1616 * the color and Z formats to SPI_SHADER_ZERO. The hw will skip export
1617 * instructions if any are present.
1619 if ((sscreen
->info
.chip_class
<= GFX9
|| info
->uses_kill
||
1620 shader
->key
.part
.ps
.epilog
.alpha_func
!= PIPE_FUNC_ALWAYS
) &&
1621 !spi_shader_col_format
&& !info
->writes_z
&& !info
->writes_stencil
&&
1622 !info
->writes_samplemask
)
1623 spi_shader_col_format
= V_028714_SPI_SHADER_32_R
;
1625 shader
->ctx_reg
.ps
.spi_ps_input_ena
= input_ena
;
1626 shader
->ctx_reg
.ps
.spi_ps_input_addr
= shader
->config
.spi_ps_input_addr
;
1628 /* Set interpolation controls. */
1629 spi_ps_in_control
= S_0286D8_NUM_INTERP(si_get_ps_num_interp(shader
)) |
1630 S_0286D8_PS_W32_EN(sscreen
->ps_wave_size
== 32);
1632 shader
->ctx_reg
.ps
.spi_baryc_cntl
= spi_baryc_cntl
;
1633 shader
->ctx_reg
.ps
.spi_ps_in_control
= spi_ps_in_control
;
1634 shader
->ctx_reg
.ps
.spi_shader_z_format
=
1635 ac_get_spi_shader_z_format(info
->writes_z
, info
->writes_stencil
, info
->writes_samplemask
);
1636 shader
->ctx_reg
.ps
.spi_shader_col_format
= spi_shader_col_format
;
1637 shader
->ctx_reg
.ps
.cb_shader_mask
= cb_shader_mask
;
1639 va
= shader
->bo
->gpu_address
;
1640 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_SHADER_BINARY
);
1641 si_pm4_set_reg(pm4
, R_00B020_SPI_SHADER_PGM_LO_PS
, va
>> 8);
1642 si_pm4_set_reg(pm4
, R_00B024_SPI_SHADER_PGM_HI_PS
, S_00B024_MEM_BASE(va
>> 40));
1645 S_00B028_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ps_wave_size
== 32 ? 8 : 4)) |
1646 S_00B028_DX10_CLAMP(1) | S_00B028_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
1647 S_00B028_FLOAT_MODE(shader
->config
.float_mode
);
1649 if (sscreen
->info
.chip_class
< GFX10
) {
1650 rsrc1
|= S_00B028_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
1653 si_pm4_set_reg(pm4
, R_00B028_SPI_SHADER_PGM_RSRC1_PS
, rsrc1
);
1654 si_pm4_set_reg(pm4
, R_00B02C_SPI_SHADER_PGM_RSRC2_PS
,
1655 S_00B02C_EXTRA_LDS_SIZE(shader
->config
.lds_size
) |
1656 S_00B02C_USER_SGPR(SI_PS_NUM_USER_SGPR
) |
1657 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
1660 static void si_shader_init_pm4_state(struct si_screen
*sscreen
, struct si_shader
*shader
)
1662 switch (shader
->selector
->type
) {
1663 case PIPE_SHADER_VERTEX
:
1664 if (shader
->key
.as_ls
)
1665 si_shader_ls(sscreen
, shader
);
1666 else if (shader
->key
.as_es
)
1667 si_shader_es(sscreen
, shader
);
1668 else if (shader
->key
.as_ngg
)
1669 gfx10_shader_ngg(sscreen
, shader
);
1671 si_shader_vs(sscreen
, shader
, NULL
);
1673 case PIPE_SHADER_TESS_CTRL
:
1674 si_shader_hs(sscreen
, shader
);
1676 case PIPE_SHADER_TESS_EVAL
:
1677 if (shader
->key
.as_es
)
1678 si_shader_es(sscreen
, shader
);
1679 else if (shader
->key
.as_ngg
)
1680 gfx10_shader_ngg(sscreen
, shader
);
1682 si_shader_vs(sscreen
, shader
, NULL
);
1684 case PIPE_SHADER_GEOMETRY
:
1685 if (shader
->key
.as_ngg
)
1686 gfx10_shader_ngg(sscreen
, shader
);
1688 si_shader_gs(sscreen
, shader
);
1690 case PIPE_SHADER_FRAGMENT
:
1691 si_shader_ps(sscreen
, shader
);
1698 static unsigned si_get_alpha_test_func(struct si_context
*sctx
)
1700 /* Alpha-test should be disabled if colorbuffer 0 is integer. */
1701 return sctx
->queued
.named
.dsa
->alpha_func
;
1704 void si_shader_selector_key_vs(struct si_context
*sctx
, struct si_shader_selector
*vs
,
1705 struct si_shader_key
*key
, struct si_vs_prolog_bits
*prolog_key
)
1707 if (!sctx
->vertex_elements
|| vs
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
])
1710 struct si_vertex_elements
*elts
= sctx
->vertex_elements
;
1712 prolog_key
->instance_divisor_is_one
= elts
->instance_divisor_is_one
;
1713 prolog_key
->instance_divisor_is_fetched
= elts
->instance_divisor_is_fetched
;
1714 prolog_key
->unpack_instance_id_from_vertex_id
= sctx
->prim_discard_cs_instancing
;
1716 /* Prefer a monolithic shader to allow scheduling divisions around
1718 if (prolog_key
->instance_divisor_is_fetched
)
1719 key
->opt
.prefer_mono
= 1;
1721 unsigned count
= MIN2(vs
->info
.num_inputs
, elts
->count
);
1722 unsigned count_mask
= (1 << count
) - 1;
1723 unsigned fix
= elts
->fix_fetch_always
& count_mask
;
1724 unsigned opencode
= elts
->fix_fetch_opencode
& count_mask
;
1726 if (sctx
->vertex_buffer_unaligned
& elts
->vb_alignment_check_mask
) {
1727 uint32_t mask
= elts
->fix_fetch_unaligned
& count_mask
;
1729 unsigned i
= u_bit_scan(&mask
);
1730 unsigned log_hw_load_size
= 1 + ((elts
->hw_load_is_dword
>> i
) & 1);
1731 unsigned vbidx
= elts
->vertex_buffer_index
[i
];
1732 struct pipe_vertex_buffer
*vb
= &sctx
->vertex_buffer
[vbidx
];
1733 unsigned align_mask
= (1 << log_hw_load_size
) - 1;
1734 if (vb
->buffer_offset
& align_mask
|| vb
->stride
& align_mask
) {
1742 unsigned i
= u_bit_scan(&fix
);
1743 key
->mono
.vs_fix_fetch
[i
].bits
= elts
->fix_fetch
[i
];
1745 key
->mono
.vs_fetch_opencode
= opencode
;
1748 static void si_shader_selector_key_hw_vs(struct si_context
*sctx
, struct si_shader_selector
*vs
,
1749 struct si_shader_key
*key
)
1751 struct si_shader_selector
*ps
= sctx
->ps_shader
.cso
;
1753 key
->opt
.clip_disable
= sctx
->queued
.named
.rasterizer
->clip_plane_enable
== 0 &&
1754 (vs
->info
.clipdist_writemask
|| vs
->info
.writes_clipvertex
) &&
1755 !vs
->info
.culldist_writemask
;
1757 /* Find out if PS is disabled. */
1758 bool ps_disabled
= true;
1760 bool ps_modifies_zs
= ps
->info
.uses_kill
|| ps
->info
.writes_z
|| ps
->info
.writes_stencil
||
1761 ps
->info
.writes_samplemask
||
1762 sctx
->queued
.named
.blend
->alpha_to_coverage
||
1763 si_get_alpha_test_func(sctx
) != PIPE_FUNC_ALWAYS
;
1764 unsigned ps_colormask
= si_get_total_colormask(sctx
);
1766 ps_disabled
= sctx
->queued
.named
.rasterizer
->rasterizer_discard
||
1767 (!ps_colormask
&& !ps_modifies_zs
&& !ps
->info
.writes_memory
);
1770 /* Find out which VS outputs aren't used by the PS. */
1771 uint64_t outputs_written
= vs
->outputs_written_before_ps
;
1772 uint64_t inputs_read
= 0;
1774 /* Ignore outputs that are not passed from VS to PS. */
1775 outputs_written
&= ~((1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_POSITION
, 0, true)) |
1776 (1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_PSIZE
, 0, true)) |
1777 (1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_CLIPVERTEX
, 0, true)));
1780 inputs_read
= ps
->inputs_read
;
1783 uint64_t linked
= outputs_written
& inputs_read
;
1785 key
->opt
.kill_outputs
= ~linked
& outputs_written
;
1786 key
->opt
.ngg_culling
= sctx
->ngg_culling
;
1789 /* Compute the key for the hw shader variant */
1790 static inline void si_shader_selector_key(struct pipe_context
*ctx
, struct si_shader_selector
*sel
,
1791 union si_vgt_stages_key stages_key
,
1792 struct si_shader_key
*key
)
1794 struct si_context
*sctx
= (struct si_context
*)ctx
;
1796 memset(key
, 0, sizeof(*key
));
1798 switch (sel
->type
) {
1799 case PIPE_SHADER_VERTEX
:
1800 si_shader_selector_key_vs(sctx
, sel
, key
, &key
->part
.vs
.prolog
);
1802 if (sctx
->tes_shader
.cso
)
1804 else if (sctx
->gs_shader
.cso
) {
1806 key
->as_ngg
= stages_key
.u
.ngg
;
1808 key
->as_ngg
= stages_key
.u
.ngg
;
1809 si_shader_selector_key_hw_vs(sctx
, sel
, key
);
1811 if (sctx
->ps_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
)
1812 key
->mono
.u
.vs_export_prim_id
= 1;
1815 case PIPE_SHADER_TESS_CTRL
:
1816 if (sctx
->chip_class
>= GFX9
) {
1817 si_shader_selector_key_vs(sctx
, sctx
->vs_shader
.cso
, key
, &key
->part
.tcs
.ls_prolog
);
1818 key
->part
.tcs
.ls
= sctx
->vs_shader
.cso
;
1820 /* When the LS VGPR fix is needed, monolithic shaders
1822 * - avoid initializing EXEC in both the LS prolog
1823 * and the LS main part when !vs_needs_prolog
1824 * - remove the fixup for unused input VGPRs
1826 key
->part
.tcs
.ls_prolog
.ls_vgpr_fix
= sctx
->ls_vgpr_fix
;
1828 /* The LS output / HS input layout can be communicated
1829 * directly instead of via user SGPRs for merged LS-HS.
1830 * The LS VGPR fix prefers this too.
1832 key
->opt
.prefer_mono
= 1;
1835 key
->part
.tcs
.epilog
.prim_mode
=
1836 sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
1837 key
->part
.tcs
.epilog
.invoc0_tess_factors_are_def
=
1838 sel
->info
.tessfactors_are_def_in_all_invocs
;
1839 key
->part
.tcs
.epilog
.tes_reads_tess_factors
= sctx
->tes_shader
.cso
->info
.reads_tess_factors
;
1841 if (sel
== sctx
->fixed_func_tcs_shader
.cso
)
1842 key
->mono
.u
.ff_tcs_inputs_to_copy
= sctx
->vs_shader
.cso
->outputs_written
;
1844 case PIPE_SHADER_TESS_EVAL
:
1845 key
->as_ngg
= stages_key
.u
.ngg
;
1847 if (sctx
->gs_shader
.cso
)
1850 si_shader_selector_key_hw_vs(sctx
, sel
, key
);
1852 if (sctx
->ps_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
)
1853 key
->mono
.u
.vs_export_prim_id
= 1;
1856 case PIPE_SHADER_GEOMETRY
:
1857 if (sctx
->chip_class
>= GFX9
) {
1858 if (sctx
->tes_shader
.cso
) {
1859 key
->part
.gs
.es
= sctx
->tes_shader
.cso
;
1861 si_shader_selector_key_vs(sctx
, sctx
->vs_shader
.cso
, key
, &key
->part
.gs
.vs_prolog
);
1862 key
->part
.gs
.es
= sctx
->vs_shader
.cso
;
1863 key
->part
.gs
.prolog
.gfx9_prev_is_vs
= 1;
1866 key
->as_ngg
= stages_key
.u
.ngg
;
1868 /* Merged ES-GS can have unbalanced wave usage.
1870 * ES threads are per-vertex, while GS threads are
1871 * per-primitive. So without any amplification, there
1872 * are fewer GS threads than ES threads, which can result
1873 * in empty (no-op) GS waves. With too much amplification,
1874 * there are more GS threads than ES threads, which
1875 * can result in empty (no-op) ES waves.
1877 * Non-monolithic shaders are implemented by setting EXEC
1878 * at the beginning of shader parts, and don't jump to
1879 * the end if EXEC is 0.
1881 * Monolithic shaders use conditional blocks, so they can
1882 * jump and skip empty waves of ES or GS. So set this to
1883 * always use optimized variants, which are monolithic.
1885 key
->opt
.prefer_mono
= 1;
1887 key
->part
.gs
.prolog
.tri_strip_adj_fix
= sctx
->gs_tri_strip_adj_fix
;
1889 case PIPE_SHADER_FRAGMENT
: {
1890 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1891 struct si_state_blend
*blend
= sctx
->queued
.named
.blend
;
1893 if (sel
->info
.properties
[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
] &&
1894 sel
->info
.colors_written
== 0x1)
1895 key
->part
.ps
.epilog
.last_cbuf
= MAX2(sctx
->framebuffer
.state
.nr_cbufs
, 1) - 1;
1897 /* Select the shader color format based on whether
1898 * blending or alpha are needed.
1900 key
->part
.ps
.epilog
.spi_shader_col_format
=
1901 (blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
1902 sctx
->framebuffer
.spi_shader_col_format_blend_alpha
) |
1903 (blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
1904 sctx
->framebuffer
.spi_shader_col_format_blend
) |
1905 (~blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
1906 sctx
->framebuffer
.spi_shader_col_format_alpha
) |
1907 (~blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
1908 sctx
->framebuffer
.spi_shader_col_format
);
1909 key
->part
.ps
.epilog
.spi_shader_col_format
&= blend
->cb_target_enabled_4bit
;
1911 /* The output for dual source blending should have
1912 * the same format as the first output.
1914 if (blend
->dual_src_blend
) {
1915 key
->part
.ps
.epilog
.spi_shader_col_format
|=
1916 (key
->part
.ps
.epilog
.spi_shader_col_format
& 0xf) << 4;
1919 /* If alpha-to-coverage is enabled, we have to export alpha
1920 * even if there is no color buffer.
1922 if (!(key
->part
.ps
.epilog
.spi_shader_col_format
& 0xf) && blend
->alpha_to_coverage
)
1923 key
->part
.ps
.epilog
.spi_shader_col_format
|= V_028710_SPI_SHADER_32_AR
;
1925 /* On GFX6 and GFX7 except Hawaii, the CB doesn't clamp outputs
1926 * to the range supported by the type if a channel has less
1927 * than 16 bits and the export format is 16_ABGR.
1929 if (sctx
->chip_class
<= GFX7
&& sctx
->family
!= CHIP_HAWAII
) {
1930 key
->part
.ps
.epilog
.color_is_int8
= sctx
->framebuffer
.color_is_int8
;
1931 key
->part
.ps
.epilog
.color_is_int10
= sctx
->framebuffer
.color_is_int10
;
1934 /* Disable unwritten outputs (if WRITE_ALL_CBUFS isn't enabled). */
1935 if (!key
->part
.ps
.epilog
.last_cbuf
) {
1936 key
->part
.ps
.epilog
.spi_shader_col_format
&= sel
->colors_written_4bit
;
1937 key
->part
.ps
.epilog
.color_is_int8
&= sel
->info
.colors_written
;
1938 key
->part
.ps
.epilog
.color_is_int10
&= sel
->info
.colors_written
;
1941 bool is_poly
= !util_prim_is_points_or_lines(sctx
->current_rast_prim
);
1942 bool is_line
= util_prim_is_lines(sctx
->current_rast_prim
);
1944 key
->part
.ps
.prolog
.color_two_side
= rs
->two_side
&& sel
->info
.colors_read
;
1945 key
->part
.ps
.prolog
.flatshade_colors
= rs
->flatshade
&& sel
->info
.colors_read
;
1947 key
->part
.ps
.epilog
.alpha_to_one
= blend
->alpha_to_one
&& rs
->multisample_enable
;
1949 key
->part
.ps
.prolog
.poly_stipple
= rs
->poly_stipple_enable
&& is_poly
;
1950 key
->part
.ps
.epilog
.poly_line_smoothing
=
1951 ((is_poly
&& rs
->poly_smooth
) || (is_line
&& rs
->line_smooth
)) &&
1952 sctx
->framebuffer
.nr_samples
<= 1;
1953 key
->part
.ps
.epilog
.clamp_color
= rs
->clamp_fragment_color
;
1955 if (sctx
->ps_iter_samples
> 1 && sel
->info
.reads_samplemask
) {
1956 key
->part
.ps
.prolog
.samplemask_log_ps_iter
= util_logbase2(sctx
->ps_iter_samples
);
1959 if (rs
->force_persample_interp
&& rs
->multisample_enable
&&
1960 sctx
->framebuffer
.nr_samples
> 1 && sctx
->ps_iter_samples
> 1) {
1961 key
->part
.ps
.prolog
.force_persp_sample_interp
=
1962 sel
->info
.uses_persp_center
|| sel
->info
.uses_persp_centroid
;
1964 key
->part
.ps
.prolog
.force_linear_sample_interp
=
1965 sel
->info
.uses_linear_center
|| sel
->info
.uses_linear_centroid
;
1966 } else if (rs
->multisample_enable
&& sctx
->framebuffer
.nr_samples
> 1) {
1967 key
->part
.ps
.prolog
.bc_optimize_for_persp
=
1968 sel
->info
.uses_persp_center
&& sel
->info
.uses_persp_centroid
;
1969 key
->part
.ps
.prolog
.bc_optimize_for_linear
=
1970 sel
->info
.uses_linear_center
&& sel
->info
.uses_linear_centroid
;
1972 /* Make sure SPI doesn't compute more than 1 pair
1973 * of (i,j), which is the optimization here. */
1974 key
->part
.ps
.prolog
.force_persp_center_interp
= sel
->info
.uses_persp_center
+
1975 sel
->info
.uses_persp_centroid
+
1976 sel
->info
.uses_persp_sample
>
1979 key
->part
.ps
.prolog
.force_linear_center_interp
= sel
->info
.uses_linear_center
+
1980 sel
->info
.uses_linear_centroid
+
1981 sel
->info
.uses_linear_sample
>
1984 if (sel
->info
.uses_persp_opcode_interp_sample
||
1985 sel
->info
.uses_linear_opcode_interp_sample
)
1986 key
->mono
.u
.ps
.interpolate_at_sample_force_center
= 1;
1989 key
->part
.ps
.epilog
.alpha_func
= si_get_alpha_test_func(sctx
);
1991 /* ps_uses_fbfetch is true only if the color buffer is bound. */
1992 if (sctx
->ps_uses_fbfetch
&& !sctx
->blitter
->running
) {
1993 struct pipe_surface
*cb0
= sctx
->framebuffer
.state
.cbufs
[0];
1994 struct pipe_resource
*tex
= cb0
->texture
;
1996 /* 1D textures are allocated and used as 2D on GFX9. */
1997 key
->mono
.u
.ps
.fbfetch_msaa
= sctx
->framebuffer
.nr_samples
> 1;
1998 key
->mono
.u
.ps
.fbfetch_is_1D
=
1999 sctx
->chip_class
!= GFX9
&&
2000 (tex
->target
== PIPE_TEXTURE_1D
|| tex
->target
== PIPE_TEXTURE_1D_ARRAY
);
2001 key
->mono
.u
.ps
.fbfetch_layered
=
2002 tex
->target
== PIPE_TEXTURE_1D_ARRAY
|| tex
->target
== PIPE_TEXTURE_2D_ARRAY
||
2003 tex
->target
== PIPE_TEXTURE_CUBE
|| tex
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
2004 tex
->target
== PIPE_TEXTURE_3D
;
2012 if (unlikely(sctx
->screen
->debug_flags
& DBG(NO_OPT_VARIANT
)))
2013 memset(&key
->opt
, 0, sizeof(key
->opt
));
2016 static void si_build_shader_variant(struct si_shader
*shader
, int thread_index
, bool low_priority
)
2018 struct si_shader_selector
*sel
= shader
->selector
;
2019 struct si_screen
*sscreen
= sel
->screen
;
2020 struct ac_llvm_compiler
*compiler
;
2021 struct pipe_debug_callback
*debug
= &shader
->compiler_ctx_state
.debug
;
2023 if (thread_index
>= 0) {
2025 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler_lowp
));
2026 compiler
= &sscreen
->compiler_lowp
[thread_index
];
2028 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler
));
2029 compiler
= &sscreen
->compiler
[thread_index
];
2034 assert(!low_priority
);
2035 compiler
= shader
->compiler_ctx_state
.compiler
;
2038 if (!compiler
->passes
)
2039 si_init_compiler(sscreen
, compiler
);
2041 if (unlikely(!si_create_shader_variant(sscreen
, compiler
, shader
, debug
))) {
2042 PRINT_ERR("Failed to build shader variant (type=%u)\n", sel
->type
);
2043 shader
->compilation_failed
= true;
2047 if (shader
->compiler_ctx_state
.is_debug_context
) {
2048 FILE *f
= open_memstream(&shader
->shader_log
, &shader
->shader_log_size
);
2050 si_shader_dump(sscreen
, shader
, NULL
, f
, false);
2055 si_shader_init_pm4_state(sscreen
, shader
);
2058 static void si_build_shader_variant_low_priority(void *job
, int thread_index
)
2060 struct si_shader
*shader
= (struct si_shader
*)job
;
2062 assert(thread_index
>= 0);
2064 si_build_shader_variant(shader
, thread_index
, true);
2067 static const struct si_shader_key zeroed
;
2069 static bool si_check_missing_main_part(struct si_screen
*sscreen
, struct si_shader_selector
*sel
,
2070 struct si_compiler_ctx_state
*compiler_state
,
2071 struct si_shader_key
*key
)
2073 struct si_shader
**mainp
= si_get_main_shader_part(sel
, key
);
2076 struct si_shader
*main_part
= CALLOC_STRUCT(si_shader
);
2081 /* We can leave the fence as permanently signaled because the
2082 * main part becomes visible globally only after it has been
2084 util_queue_fence_init(&main_part
->ready
);
2086 main_part
->selector
= sel
;
2087 main_part
->key
.as_es
= key
->as_es
;
2088 main_part
->key
.as_ls
= key
->as_ls
;
2089 main_part
->key
.as_ngg
= key
->as_ngg
;
2090 main_part
->is_monolithic
= false;
2092 if (!si_compile_shader(sscreen
, compiler_state
->compiler
, main_part
,
2093 &compiler_state
->debug
)) {
2103 * Select a shader variant according to the shader key.
2105 * \param optimized_or_none If the key describes an optimized shader variant and
2106 * the compilation isn't finished, don't select any
2107 * shader and return an error.
2109 int si_shader_select_with_key(struct si_screen
*sscreen
, struct si_shader_ctx_state
*state
,
2110 struct si_compiler_ctx_state
*compiler_state
,
2111 struct si_shader_key
*key
, int thread_index
, bool optimized_or_none
)
2113 struct si_shader_selector
*sel
= state
->cso
;
2114 struct si_shader_selector
*previous_stage_sel
= NULL
;
2115 struct si_shader
*current
= state
->current
;
2116 struct si_shader
*iter
, *shader
= NULL
;
2119 /* Check if we don't need to change anything.
2120 * This path is also used for most shaders that don't need multiple
2121 * variants, it will cost just a computation of the key and this
2123 if (likely(current
&& memcmp(¤t
->key
, key
, sizeof(*key
)) == 0)) {
2124 if (unlikely(!util_queue_fence_is_signalled(¤t
->ready
))) {
2125 if (current
->is_optimized
) {
2126 if (optimized_or_none
)
2129 memset(&key
->opt
, 0, sizeof(key
->opt
));
2130 goto current_not_ready
;
2133 util_queue_fence_wait(¤t
->ready
);
2136 return current
->compilation_failed
? -1 : 0;
2140 /* This must be done before the mutex is locked, because async GS
2141 * compilation calls this function too, and therefore must enter
2144 * Only wait if we are in a draw call. Don't wait if we are
2145 * in a compiler thread.
2147 if (thread_index
< 0)
2148 util_queue_fence_wait(&sel
->ready
);
2150 simple_mtx_lock(&sel
->mutex
);
2152 /* Find the shader variant. */
2153 for (iter
= sel
->first_variant
; iter
; iter
= iter
->next_variant
) {
2154 /* Don't check the "current" shader. We checked it above. */
2155 if (current
!= iter
&& memcmp(&iter
->key
, key
, sizeof(*key
)) == 0) {
2156 simple_mtx_unlock(&sel
->mutex
);
2158 if (unlikely(!util_queue_fence_is_signalled(&iter
->ready
))) {
2159 /* If it's an optimized shader and its compilation has
2160 * been started but isn't done, use the unoptimized
2161 * shader so as not to cause a stall due to compilation.
2163 if (iter
->is_optimized
) {
2164 if (optimized_or_none
)
2166 memset(&key
->opt
, 0, sizeof(key
->opt
));
2170 util_queue_fence_wait(&iter
->ready
);
2173 if (iter
->compilation_failed
) {
2174 return -1; /* skip the draw call */
2177 state
->current
= iter
;
2182 /* Build a new shader. */
2183 shader
= CALLOC_STRUCT(si_shader
);
2185 simple_mtx_unlock(&sel
->mutex
);
2189 util_queue_fence_init(&shader
->ready
);
2191 shader
->selector
= sel
;
2193 shader
->compiler_ctx_state
= *compiler_state
;
2195 /* If this is a merged shader, get the first shader's selector. */
2196 if (sscreen
->info
.chip_class
>= GFX9
) {
2197 if (sel
->type
== PIPE_SHADER_TESS_CTRL
)
2198 previous_stage_sel
= key
->part
.tcs
.ls
;
2199 else if (sel
->type
== PIPE_SHADER_GEOMETRY
)
2200 previous_stage_sel
= key
->part
.gs
.es
;
2202 /* We need to wait for the previous shader. */
2203 if (previous_stage_sel
&& thread_index
< 0)
2204 util_queue_fence_wait(&previous_stage_sel
->ready
);
2207 bool is_pure_monolithic
=
2208 sscreen
->use_monolithic_shaders
|| memcmp(&key
->mono
, &zeroed
.mono
, sizeof(key
->mono
)) != 0;
2210 /* Compile the main shader part if it doesn't exist. This can happen
2211 * if the initial guess was wrong.
2213 * The prim discard CS doesn't need the main shader part.
2215 if (!is_pure_monolithic
&& !key
->opt
.vs_as_prim_discard_cs
) {
2218 /* Make sure the main shader part is present. This is needed
2219 * for shaders that can be compiled as VS, LS, or ES, and only
2220 * one of them is compiled at creation.
2222 * It is also needed for GS, which can be compiled as non-NGG
2225 * For merged shaders, check that the starting shader's main
2228 if (previous_stage_sel
) {
2229 struct si_shader_key shader1_key
= zeroed
;
2231 if (sel
->type
== PIPE_SHADER_TESS_CTRL
) {
2232 shader1_key
.as_ls
= 1;
2233 } else if (sel
->type
== PIPE_SHADER_GEOMETRY
) {
2234 shader1_key
.as_es
= 1;
2235 shader1_key
.as_ngg
= key
->as_ngg
; /* for Wave32 vs Wave64 */
2240 simple_mtx_lock(&previous_stage_sel
->mutex
);
2241 ok
= si_check_missing_main_part(sscreen
, previous_stage_sel
, compiler_state
, &shader1_key
);
2242 simple_mtx_unlock(&previous_stage_sel
->mutex
);
2246 ok
= si_check_missing_main_part(sscreen
, sel
, compiler_state
, key
);
2251 simple_mtx_unlock(&sel
->mutex
);
2252 return -ENOMEM
; /* skip the draw call */
2256 /* Keep the reference to the 1st shader of merged shaders, so that
2257 * Gallium can't destroy it before we destroy the 2nd shader.
2259 * Set sctx = NULL, because it's unused if we're not releasing
2260 * the shader, and we don't have any sctx here.
2262 si_shader_selector_reference(NULL
, &shader
->previous_stage_sel
, previous_stage_sel
);
2264 /* Monolithic-only shaders don't make a distinction between optimized
2265 * and unoptimized. */
2266 shader
->is_monolithic
=
2267 is_pure_monolithic
|| memcmp(&key
->opt
, &zeroed
.opt
, sizeof(key
->opt
)) != 0;
2269 /* The prim discard CS is always optimized. */
2270 shader
->is_optimized
= (!is_pure_monolithic
|| key
->opt
.vs_as_prim_discard_cs
) &&
2271 memcmp(&key
->opt
, &zeroed
.opt
, sizeof(key
->opt
)) != 0;
2273 /* If it's an optimized shader, compile it asynchronously. */
2274 if (shader
->is_optimized
&& thread_index
< 0) {
2275 /* Compile it asynchronously. */
2276 util_queue_add_job(&sscreen
->shader_compiler_queue_low_priority
, shader
, &shader
->ready
,
2277 si_build_shader_variant_low_priority
, NULL
, 0);
2279 /* Add only after the ready fence was reset, to guard against a
2280 * race with si_bind_XX_shader. */
2281 if (!sel
->last_variant
) {
2282 sel
->first_variant
= shader
;
2283 sel
->last_variant
= shader
;
2285 sel
->last_variant
->next_variant
= shader
;
2286 sel
->last_variant
= shader
;
2289 /* Use the default (unoptimized) shader for now. */
2290 memset(&key
->opt
, 0, sizeof(key
->opt
));
2291 simple_mtx_unlock(&sel
->mutex
);
2293 if (sscreen
->options
.sync_compile
)
2294 util_queue_fence_wait(&shader
->ready
);
2296 if (optimized_or_none
)
2301 /* Reset the fence before adding to the variant list. */
2302 util_queue_fence_reset(&shader
->ready
);
2304 if (!sel
->last_variant
) {
2305 sel
->first_variant
= shader
;
2306 sel
->last_variant
= shader
;
2308 sel
->last_variant
->next_variant
= shader
;
2309 sel
->last_variant
= shader
;
2312 simple_mtx_unlock(&sel
->mutex
);
2314 assert(!shader
->is_optimized
);
2315 si_build_shader_variant(shader
, thread_index
, false);
2317 util_queue_fence_signal(&shader
->ready
);
2319 if (!shader
->compilation_failed
)
2320 state
->current
= shader
;
2322 return shader
->compilation_failed
? -1 : 0;
2325 static int si_shader_select(struct pipe_context
*ctx
, struct si_shader_ctx_state
*state
,
2326 union si_vgt_stages_key stages_key
,
2327 struct si_compiler_ctx_state
*compiler_state
)
2329 struct si_context
*sctx
= (struct si_context
*)ctx
;
2330 struct si_shader_key key
;
2332 si_shader_selector_key(ctx
, state
->cso
, stages_key
, &key
);
2333 return si_shader_select_with_key(sctx
->screen
, state
, compiler_state
, &key
, -1, false);
2336 static void si_parse_next_shader_property(const struct si_shader_info
*info
, bool streamout
,
2337 struct si_shader_key
*key
)
2339 unsigned next_shader
= info
->properties
[TGSI_PROPERTY_NEXT_SHADER
];
2341 switch (info
->processor
) {
2342 case PIPE_SHADER_VERTEX
:
2343 switch (next_shader
) {
2344 case PIPE_SHADER_GEOMETRY
:
2347 case PIPE_SHADER_TESS_CTRL
:
2348 case PIPE_SHADER_TESS_EVAL
:
2352 /* If POSITION isn't written, it can only be a HW VS
2353 * if streamout is used. If streamout isn't used,
2354 * assume that it's a HW LS. (the next shader is TCS)
2355 * This heuristic is needed for separate shader objects.
2357 if (!info
->writes_position
&& !streamout
)
2362 case PIPE_SHADER_TESS_EVAL
:
2363 if (next_shader
== PIPE_SHADER_GEOMETRY
|| !info
->writes_position
)
2370 * Compile the main shader part or the monolithic shader as part of
2371 * si_shader_selector initialization. Since it can be done asynchronously,
2372 * there is no way to report compile failures to applications.
2374 static void si_init_shader_selector_async(void *job
, int thread_index
)
2376 struct si_shader_selector
*sel
= (struct si_shader_selector
*)job
;
2377 struct si_screen
*sscreen
= sel
->screen
;
2378 struct ac_llvm_compiler
*compiler
;
2379 struct pipe_debug_callback
*debug
= &sel
->compiler_ctx_state
.debug
;
2381 assert(!debug
->debug_message
|| debug
->async
);
2382 assert(thread_index
>= 0);
2383 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler
));
2384 compiler
= &sscreen
->compiler
[thread_index
];
2386 if (!compiler
->passes
)
2387 si_init_compiler(sscreen
, compiler
);
2389 /* Serialize NIR to save memory. Monolithic shader variants
2390 * have to deserialize NIR before compilation.
2397 /* true = remove optional debugging data to increase
2398 * the likehood of getting more shader cache hits.
2399 * It also drops variable names, so we'll save more memory.
2401 nir_serialize(&blob
, sel
->nir
, true);
2402 blob_finish_get_buffer(&blob
, &sel
->nir_binary
, &size
);
2403 sel
->nir_size
= size
;
2406 /* Compile the main shader part for use with a prolog and/or epilog.
2407 * If this fails, the driver will try to compile a monolithic shader
2410 if (!sscreen
->use_monolithic_shaders
) {
2411 struct si_shader
*shader
= CALLOC_STRUCT(si_shader
);
2412 unsigned char ir_sha1_cache_key
[20];
2415 fprintf(stderr
, "radeonsi: can't allocate a main shader part\n");
2419 /* We can leave the fence signaled because use of the default
2420 * main part is guarded by the selector's ready fence. */
2421 util_queue_fence_init(&shader
->ready
);
2423 shader
->selector
= sel
;
2424 shader
->is_monolithic
= false;
2425 si_parse_next_shader_property(&sel
->info
, sel
->so
.num_outputs
!= 0, &shader
->key
);
2427 if (sscreen
->use_ngg
&& (!sel
->so
.num_outputs
|| sscreen
->use_ngg_streamout
) &&
2428 ((sel
->type
== PIPE_SHADER_VERTEX
&& !shader
->key
.as_ls
) ||
2429 sel
->type
== PIPE_SHADER_TESS_EVAL
|| sel
->type
== PIPE_SHADER_GEOMETRY
))
2430 shader
->key
.as_ngg
= 1;
2433 si_get_ir_cache_key(sel
, shader
->key
.as_ngg
, shader
->key
.as_es
, ir_sha1_cache_key
);
2436 /* Try to load the shader from the shader cache. */
2437 simple_mtx_lock(&sscreen
->shader_cache_mutex
);
2439 if (si_shader_cache_load_shader(sscreen
, ir_sha1_cache_key
, shader
)) {
2440 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2441 si_shader_dump_stats_for_shader_db(sscreen
, shader
, debug
);
2443 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2445 /* Compile the shader if it hasn't been loaded from the cache. */
2446 if (!si_compile_shader(sscreen
, compiler
, shader
, debug
)) {
2448 fprintf(stderr
, "radeonsi: can't compile a main shader part\n");
2452 simple_mtx_lock(&sscreen
->shader_cache_mutex
);
2453 si_shader_cache_insert_shader(sscreen
, ir_sha1_cache_key
, shader
, true);
2454 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2457 *si_get_main_shader_part(sel
, &shader
->key
) = shader
;
2459 /* Unset "outputs_written" flags for outputs converted to
2460 * DEFAULT_VAL, so that later inter-shader optimizations don't
2461 * try to eliminate outputs that don't exist in the final
2464 * This is only done if non-monolithic shaders are enabled.
2466 if ((sel
->type
== PIPE_SHADER_VERTEX
|| sel
->type
== PIPE_SHADER_TESS_EVAL
) &&
2467 !shader
->key
.as_ls
&& !shader
->key
.as_es
) {
2470 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
2471 unsigned offset
= shader
->info
.vs_output_param_offset
[i
];
2473 if (offset
<= AC_EXP_PARAM_OFFSET_31
)
2476 unsigned name
= sel
->info
.output_semantic_name
[i
];
2477 unsigned index
= sel
->info
.output_semantic_index
[i
];
2481 case TGSI_SEMANTIC_GENERIC
:
2482 /* don't process indices the function can't handle */
2483 if (index
>= SI_MAX_IO_GENERIC
)
2487 id
= si_shader_io_get_unique_index(name
, index
, true);
2488 sel
->outputs_written_before_ps
&= ~(1ull << id
);
2490 case TGSI_SEMANTIC_POSITION
: /* ignore these */
2491 case TGSI_SEMANTIC_PSIZE
:
2492 case TGSI_SEMANTIC_CLIPVERTEX
:
2493 case TGSI_SEMANTIC_EDGEFLAG
:
2500 /* The GS copy shader is always pre-compiled. */
2501 if (sel
->type
== PIPE_SHADER_GEOMETRY
&&
2502 (!sscreen
->use_ngg
|| !sscreen
->use_ngg_streamout
|| /* also for PRIMITIVES_GENERATED */
2503 sel
->tess_turns_off_ngg
)) {
2504 sel
->gs_copy_shader
= si_generate_gs_copy_shader(sscreen
, compiler
, sel
, debug
);
2505 if (!sel
->gs_copy_shader
) {
2506 fprintf(stderr
, "radeonsi: can't create GS copy shader\n");
2510 si_shader_vs(sscreen
, sel
->gs_copy_shader
, sel
);
2513 /* Free NIR. We only keep serialized NIR after this point. */
2515 ralloc_free(sel
->nir
);
2520 void si_schedule_initial_compile(struct si_context
*sctx
, unsigned processor
,
2521 struct util_queue_fence
*ready_fence
,
2522 struct si_compiler_ctx_state
*compiler_ctx_state
, void *job
,
2523 util_queue_execute_func execute
)
2525 util_queue_fence_init(ready_fence
);
2527 struct util_async_debug_callback async_debug
;
2528 bool debug
= (sctx
->debug
.debug_message
&& !sctx
->debug
.async
) || sctx
->is_debug
||
2529 si_can_dump_shader(sctx
->screen
, processor
);
2532 u_async_debug_init(&async_debug
);
2533 compiler_ctx_state
->debug
= async_debug
.base
;
2536 util_queue_add_job(&sctx
->screen
->shader_compiler_queue
, job
, ready_fence
, execute
, NULL
, 0);
2539 util_queue_fence_wait(ready_fence
);
2540 u_async_debug_drain(&async_debug
, &sctx
->debug
);
2541 u_async_debug_cleanup(&async_debug
);
2544 if (sctx
->screen
->options
.sync_compile
)
2545 util_queue_fence_wait(ready_fence
);
2548 /* Return descriptor slot usage masks from the given shader info. */
2549 void si_get_active_slot_masks(const struct si_shader_info
*info
, uint32_t *const_and_shader_buffers
,
2550 uint64_t *samplers_and_images
)
2552 unsigned start
, num_shaderbufs
, num_constbufs
, num_images
, num_msaa_images
, num_samplers
;
2554 num_shaderbufs
= util_last_bit(info
->shader_buffers_declared
);
2555 num_constbufs
= util_last_bit(info
->const_buffers_declared
);
2556 /* two 8-byte images share one 16-byte slot */
2557 num_images
= align(util_last_bit(info
->images_declared
), 2);
2558 num_msaa_images
= align(util_last_bit(info
->msaa_images_declared
), 2);
2559 num_samplers
= util_last_bit(info
->samplers_declared
);
2561 /* The layout is: sb[last] ... sb[0], cb[0] ... cb[last] */
2562 start
= si_get_shaderbuf_slot(num_shaderbufs
- 1);
2563 *const_and_shader_buffers
= u_bit_consecutive(start
, num_shaderbufs
+ num_constbufs
);
2566 * - fmask[last] ... fmask[0] go to [15-last .. 15]
2567 * - image[last] ... image[0] go to [31-last .. 31]
2568 * - sampler[0] ... sampler[last] go to [32 .. 32+last*2]
2570 * FMASKs for images are placed separately, because MSAA images are rare,
2571 * and so we can benefit from a better cache hit rate if we keep image
2572 * descriptors together.
2574 if (num_msaa_images
)
2575 num_images
= SI_NUM_IMAGES
+ num_msaa_images
; /* add FMASK descriptors */
2577 start
= si_get_image_slot(num_images
- 1) / 2;
2578 *samplers_and_images
= u_bit_consecutive64(start
, num_images
/ 2 + num_samplers
);
2581 static void *si_create_shader_selector(struct pipe_context
*ctx
,
2582 const struct pipe_shader_state
*state
)
2584 struct si_screen
*sscreen
= (struct si_screen
*)ctx
->screen
;
2585 struct si_context
*sctx
= (struct si_context
*)ctx
;
2586 struct si_shader_selector
*sel
= CALLOC_STRUCT(si_shader_selector
);
2592 sel
->screen
= sscreen
;
2593 sel
->compiler_ctx_state
.debug
= sctx
->debug
;
2594 sel
->compiler_ctx_state
.is_debug_context
= sctx
->is_debug
;
2596 sel
->so
= state
->stream_output
;
2598 if (state
->type
== PIPE_SHADER_IR_TGSI
) {
2599 sel
->nir
= tgsi_to_nir(state
->tokens
, ctx
->screen
);
2601 assert(state
->type
== PIPE_SHADER_IR_NIR
);
2602 sel
->nir
= state
->ir
.nir
;
2605 si_nir_scan_shader(sel
->nir
, &sel
->info
);
2606 si_nir_adjust_driver_locations(sel
->nir
);
2608 sel
->type
= sel
->info
.processor
;
2609 p_atomic_inc(&sscreen
->num_shaders_created
);
2610 si_get_active_slot_masks(&sel
->info
, &sel
->active_const_and_shader_buffers
,
2611 &sel
->active_samplers_and_images
);
2613 /* Record which streamout buffers are enabled. */
2614 for (i
= 0; i
< sel
->so
.num_outputs
; i
++) {
2615 sel
->enabled_streamout_buffer_mask
|= (1 << sel
->so
.output
[i
].output_buffer
)
2616 << (sel
->so
.output
[i
].stream
* 4);
2619 sel
->num_vs_inputs
=
2620 sel
->type
== PIPE_SHADER_VERTEX
&& !sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]
2621 ? sel
->info
.num_inputs
2623 sel
->num_vbos_in_user_sgprs
= MIN2(sel
->num_vs_inputs
, sscreen
->num_vbos_in_user_sgprs
);
2625 /* The prolog is a no-op if there are no inputs. */
2626 sel
->vs_needs_prolog
= sel
->type
== PIPE_SHADER_VERTEX
&& sel
->info
.num_inputs
&&
2627 !sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
2629 sel
->prim_discard_cs_allowed
=
2630 sel
->type
== PIPE_SHADER_VERTEX
&& !sel
->info
.uses_bindless_images
&&
2631 !sel
->info
.uses_bindless_samplers
&& !sel
->info
.writes_memory
&&
2632 !sel
->info
.writes_viewport_index
&&
2633 !sel
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] && !sel
->so
.num_outputs
;
2635 switch (sel
->type
) {
2636 case PIPE_SHADER_GEOMETRY
:
2637 sel
->gs_output_prim
= sel
->info
.properties
[TGSI_PROPERTY_GS_OUTPUT_PRIM
];
2639 /* Only possibilities: POINTS, LINE_STRIP, TRIANGLES */
2640 sel
->rast_prim
= sel
->gs_output_prim
;
2641 if (util_rast_prim_is_triangles(sel
->rast_prim
))
2642 sel
->rast_prim
= PIPE_PRIM_TRIANGLES
;
2644 sel
->gs_max_out_vertices
= sel
->info
.properties
[TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
];
2645 sel
->gs_num_invocations
= sel
->info
.properties
[TGSI_PROPERTY_GS_INVOCATIONS
];
2646 sel
->gsvs_vertex_size
= sel
->info
.num_outputs
* 16;
2647 sel
->max_gsvs_emit_size
= sel
->gsvs_vertex_size
* sel
->gs_max_out_vertices
;
2649 sel
->max_gs_stream
= 0;
2650 for (i
= 0; i
< sel
->so
.num_outputs
; i
++)
2651 sel
->max_gs_stream
= MAX2(sel
->max_gs_stream
, sel
->so
.output
[i
].stream
);
2653 sel
->gs_input_verts_per_prim
=
2654 u_vertices_per_prim(sel
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
]);
2656 /* EN_MAX_VERT_OUT_PER_GS_INSTANCE does not work with tesselation. */
2657 sel
->tess_turns_off_ngg
= sscreen
->info
.chip_class
== GFX10
&&
2658 sel
->gs_num_invocations
* sel
->gs_max_out_vertices
> 256;
2661 case PIPE_SHADER_TESS_CTRL
:
2662 /* Always reserve space for these. */
2663 sel
->patch_outputs_written
|=
2664 (1ull << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSINNER
, 0)) |
2665 (1ull << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSOUTER
, 0));
2667 case PIPE_SHADER_VERTEX
:
2668 case PIPE_SHADER_TESS_EVAL
:
2669 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
2670 unsigned name
= sel
->info
.output_semantic_name
[i
];
2671 unsigned index
= sel
->info
.output_semantic_index
[i
];
2674 case TGSI_SEMANTIC_TESSINNER
:
2675 case TGSI_SEMANTIC_TESSOUTER
:
2676 case TGSI_SEMANTIC_PATCH
:
2677 sel
->patch_outputs_written
|= 1ull << si_shader_io_get_unique_index_patch(name
, index
);
2680 case TGSI_SEMANTIC_GENERIC
:
2681 /* don't process indices the function can't handle */
2682 if (index
>= SI_MAX_IO_GENERIC
)
2686 sel
->outputs_written
|= 1ull << si_shader_io_get_unique_index(name
, index
, false);
2687 sel
->outputs_written_before_ps
|= 1ull
2688 << si_shader_io_get_unique_index(name
, index
, true);
2690 case TGSI_SEMANTIC_EDGEFLAG
:
2694 sel
->esgs_itemsize
= util_last_bit64(sel
->outputs_written
) * 16;
2695 sel
->lshs_vertex_stride
= sel
->esgs_itemsize
;
2697 /* Add 1 dword to reduce LDS bank conflicts, so that each vertex
2698 * will start on a different bank. (except for the maximum 32*16).
2700 if (sel
->lshs_vertex_stride
< 32 * 16)
2701 sel
->lshs_vertex_stride
+= 4;
2703 /* For the ESGS ring in LDS, add 1 dword to reduce LDS bank
2704 * conflicts, i.e. each vertex will start at a different bank.
2706 if (sctx
->chip_class
>= GFX9
)
2707 sel
->esgs_itemsize
+= 4;
2709 assert(((sel
->esgs_itemsize
/ 4) & C_028AAC_ITEMSIZE
) == 0);
2712 if (sel
->info
.properties
[TGSI_PROPERTY_TES_POINT_MODE
])
2713 sel
->rast_prim
= PIPE_PRIM_POINTS
;
2714 else if (sel
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
] == PIPE_PRIM_LINES
)
2715 sel
->rast_prim
= PIPE_PRIM_LINE_STRIP
;
2717 sel
->rast_prim
= PIPE_PRIM_TRIANGLES
;
2720 case PIPE_SHADER_FRAGMENT
:
2721 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
2722 unsigned name
= sel
->info
.input_semantic_name
[i
];
2723 unsigned index
= sel
->info
.input_semantic_index
[i
];
2726 case TGSI_SEMANTIC_GENERIC
:
2727 /* don't process indices the function can't handle */
2728 if (index
>= SI_MAX_IO_GENERIC
)
2732 sel
->inputs_read
|= 1ull << si_shader_io_get_unique_index(name
, index
, true);
2734 case TGSI_SEMANTIC_PCOORD
: /* ignore this */
2739 for (i
= 0; i
< 8; i
++)
2740 if (sel
->info
.colors_written
& (1 << i
))
2741 sel
->colors_written_4bit
|= 0xf << (4 * i
);
2743 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
2744 if (sel
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_COLOR
) {
2745 int index
= sel
->info
.input_semantic_index
[i
];
2746 sel
->color_attr_index
[index
] = i
;
2753 sel
->ngg_culling_allowed
=
2754 sscreen
->info
.chip_class
== GFX10
&& sscreen
->info
.has_dedicated_vram
&&
2755 sscreen
->use_ngg_culling
&&
2756 /* Disallow TES by default, because TessMark results are mixed. */
2757 (sel
->type
== PIPE_SHADER_VERTEX
||
2758 (sscreen
->always_use_ngg_culling
&& sel
->type
== PIPE_SHADER_TESS_EVAL
)) &&
2759 sel
->info
.writes_position
&&
2760 !sel
->info
.writes_viewport_index
&& /* cull only against viewport 0 */
2761 !sel
->info
.writes_memory
&& !sel
->so
.num_outputs
&&
2762 !sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
] &&
2763 !sel
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
2765 /* PA_CL_VS_OUT_CNTL */
2766 if (sctx
->chip_class
<= GFX9
)
2767 sel
->pa_cl_vs_out_cntl
= si_get_vs_out_cntl(sel
, false);
2769 sel
->clipdist_mask
= sel
->info
.writes_clipvertex
? SIX_BITS
: sel
->info
.clipdist_writemask
;
2770 sel
->culldist_mask
= sel
->info
.culldist_writemask
<< sel
->info
.num_written_clipdistance
;
2772 /* DB_SHADER_CONTROL */
2773 sel
->db_shader_control
= S_02880C_Z_EXPORT_ENABLE(sel
->info
.writes_z
) |
2774 S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(sel
->info
.writes_stencil
) |
2775 S_02880C_MASK_EXPORT_ENABLE(sel
->info
.writes_samplemask
) |
2776 S_02880C_KILL_ENABLE(sel
->info
.uses_kill
);
2778 switch (sel
->info
.properties
[TGSI_PROPERTY_FS_DEPTH_LAYOUT
]) {
2779 case TGSI_FS_DEPTH_LAYOUT_GREATER
:
2780 sel
->db_shader_control
|= S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_GREATER_THAN_Z
);
2782 case TGSI_FS_DEPTH_LAYOUT_LESS
:
2783 sel
->db_shader_control
|= S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_LESS_THAN_Z
);
2787 /* Z_ORDER, EXEC_ON_HIER_FAIL and EXEC_ON_NOOP should be set as following:
2789 * | early Z/S | writes_mem | allow_ReZ? | Z_ORDER | EXEC_ON_HIER_FAIL | EXEC_ON_NOOP
2790 * --|-----------|------------|------------|--------------------|-------------------|-------------
2791 * 1a| false | false | true | EarlyZ_Then_ReZ | 0 | 0
2792 * 1b| false | false | false | EarlyZ_Then_LateZ | 0 | 0
2793 * 2 | false | true | n/a | LateZ | 1 | 0
2794 * 3 | true | false | n/a | EarlyZ_Then_LateZ | 0 | 0
2795 * 4 | true | true | n/a | EarlyZ_Then_LateZ | 0 | 1
2797 * In cases 3 and 4, HW will force Z_ORDER to EarlyZ regardless of what's set in the register.
2798 * In case 2, NOOP_CULL is a don't care field. In case 2, 3 and 4, ReZ doesn't make sense.
2800 * Don't use ReZ without profiling !!!
2802 * ReZ decreases performance by 15% in DiRT: Showdown on Ultra settings, which has pretty complex
2805 if (sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
]) {
2807 sel
->db_shader_control
|= S_02880C_DEPTH_BEFORE_SHADER(1) |
2808 S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z
) |
2809 S_02880C_EXEC_ON_NOOP(sel
->info
.writes_memory
);
2810 } else if (sel
->info
.writes_memory
) {
2812 sel
->db_shader_control
|= S_02880C_Z_ORDER(V_02880C_LATE_Z
) | S_02880C_EXEC_ON_HIER_FAIL(1);
2815 sel
->db_shader_control
|= S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z
);
2818 if (sel
->info
.properties
[TGSI_PROPERTY_FS_POST_DEPTH_COVERAGE
])
2819 sel
->db_shader_control
|= S_02880C_PRE_SHADER_DEPTH_COVERAGE_ENABLE(1);
2821 (void)simple_mtx_init(&sel
->mutex
, mtx_plain
);
2823 si_schedule_initial_compile(sctx
, sel
->info
.processor
, &sel
->ready
, &sel
->compiler_ctx_state
,
2824 sel
, si_init_shader_selector_async
);
2828 static void *si_create_shader(struct pipe_context
*ctx
, const struct pipe_shader_state
*state
)
2830 struct si_context
*sctx
= (struct si_context
*)ctx
;
2831 struct si_screen
*sscreen
= (struct si_screen
*)ctx
->screen
;
2833 struct si_shader_selector
*sel
= (struct si_shader_selector
*)util_live_shader_cache_get(
2834 ctx
, &sscreen
->live_shader_cache
, state
, &cache_hit
);
2836 if (sel
&& cache_hit
&& sctx
->debug
.debug_message
) {
2837 if (sel
->main_shader_part
)
2838 si_shader_dump_stats_for_shader_db(sscreen
, sel
->main_shader_part
, &sctx
->debug
);
2839 if (sel
->main_shader_part_ls
)
2840 si_shader_dump_stats_for_shader_db(sscreen
, sel
->main_shader_part_ls
, &sctx
->debug
);
2841 if (sel
->main_shader_part_es
)
2842 si_shader_dump_stats_for_shader_db(sscreen
, sel
->main_shader_part_es
, &sctx
->debug
);
2843 if (sel
->main_shader_part_ngg
)
2844 si_shader_dump_stats_for_shader_db(sscreen
, sel
->main_shader_part_ngg
, &sctx
->debug
);
2845 if (sel
->main_shader_part_ngg_es
)
2846 si_shader_dump_stats_for_shader_db(sscreen
, sel
->main_shader_part_ngg_es
, &sctx
->debug
);
2847 if (sel
->gs_copy_shader
)
2848 si_shader_dump_stats_for_shader_db(sscreen
, sel
->gs_copy_shader
, &sctx
->debug
);
2853 static void si_update_streamout_state(struct si_context
*sctx
)
2855 struct si_shader_selector
*shader_with_so
= si_get_vs(sctx
)->cso
;
2857 if (!shader_with_so
)
2860 sctx
->streamout
.enabled_stream_buffers_mask
= shader_with_so
->enabled_streamout_buffer_mask
;
2861 sctx
->streamout
.stride_in_dw
= shader_with_so
->so
.stride
;
2864 static void si_update_clip_regs(struct si_context
*sctx
, struct si_shader_selector
*old_hw_vs
,
2865 struct si_shader
*old_hw_vs_variant
,
2866 struct si_shader_selector
*next_hw_vs
,
2867 struct si_shader
*next_hw_vs_variant
)
2871 old_hw_vs
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] !=
2872 next_hw_vs
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] ||
2873 old_hw_vs
->pa_cl_vs_out_cntl
!= next_hw_vs
->pa_cl_vs_out_cntl
||
2874 old_hw_vs
->clipdist_mask
!= next_hw_vs
->clipdist_mask
||
2875 old_hw_vs
->culldist_mask
!= next_hw_vs
->culldist_mask
|| !old_hw_vs_variant
||
2876 !next_hw_vs_variant
||
2877 old_hw_vs_variant
->key
.opt
.clip_disable
!= next_hw_vs_variant
->key
.opt
.clip_disable
))
2878 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.clip_regs
);
2881 static void si_update_common_shader_state(struct si_context
*sctx
)
2883 sctx
->uses_bindless_samplers
= si_shader_uses_bindless_samplers(sctx
->vs_shader
.cso
) ||
2884 si_shader_uses_bindless_samplers(sctx
->gs_shader
.cso
) ||
2885 si_shader_uses_bindless_samplers(sctx
->ps_shader
.cso
) ||
2886 si_shader_uses_bindless_samplers(sctx
->tcs_shader
.cso
) ||
2887 si_shader_uses_bindless_samplers(sctx
->tes_shader
.cso
);
2888 sctx
->uses_bindless_images
= si_shader_uses_bindless_images(sctx
->vs_shader
.cso
) ||
2889 si_shader_uses_bindless_images(sctx
->gs_shader
.cso
) ||
2890 si_shader_uses_bindless_images(sctx
->ps_shader
.cso
) ||
2891 si_shader_uses_bindless_images(sctx
->tcs_shader
.cso
) ||
2892 si_shader_uses_bindless_images(sctx
->tes_shader
.cso
);
2893 sctx
->do_update_shaders
= true;
2896 static void si_bind_vs_shader(struct pipe_context
*ctx
, void *state
)
2898 struct si_context
*sctx
= (struct si_context
*)ctx
;
2899 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
2900 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
2901 struct si_shader_selector
*sel
= state
;
2903 if (sctx
->vs_shader
.cso
== sel
)
2906 sctx
->vs_shader
.cso
= sel
;
2907 sctx
->vs_shader
.current
= sel
? sel
->first_variant
: NULL
;
2908 sctx
->num_vs_blit_sgprs
= sel
? sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
] : 0;
2910 if (si_update_ngg(sctx
))
2911 si_shader_change_notify(sctx
);
2913 si_update_common_shader_state(sctx
);
2914 si_update_vs_viewport_state(sctx
);
2915 si_set_active_descriptors_for_shader(sctx
, sel
);
2916 si_update_streamout_state(sctx
);
2917 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
2918 si_get_vs_state(sctx
));
2921 static void si_update_tess_uses_prim_id(struct si_context
*sctx
)
2923 sctx
->ia_multi_vgt_param_key
.u
.tess_uses_prim_id
=
2924 (sctx
->tes_shader
.cso
&& sctx
->tes_shader
.cso
->info
.uses_primid
) ||
2925 (sctx
->tcs_shader
.cso
&& sctx
->tcs_shader
.cso
->info
.uses_primid
) ||
2926 (sctx
->gs_shader
.cso
&& sctx
->gs_shader
.cso
->info
.uses_primid
) ||
2927 (sctx
->ps_shader
.cso
&& !sctx
->gs_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
);
2930 bool si_update_ngg(struct si_context
*sctx
)
2932 if (!sctx
->screen
->use_ngg
) {
2937 bool new_ngg
= true;
2939 if (sctx
->gs_shader
.cso
&& sctx
->tes_shader
.cso
&& sctx
->gs_shader
.cso
->tess_turns_off_ngg
) {
2941 } else if (!sctx
->screen
->use_ngg_streamout
) {
2942 struct si_shader_selector
*last
= si_get_vs(sctx
)->cso
;
2944 if ((last
&& last
->so
.num_outputs
) || sctx
->streamout
.prims_gen_query_enabled
)
2948 if (new_ngg
!= sctx
->ngg
) {
2949 /* Transitioning from NGG to legacy GS requires VGT_FLUSH on Navi10-14.
2950 * VGT_FLUSH is also emitted at the beginning of IBs when legacy GS ring
2953 if ((sctx
->family
== CHIP_NAVI10
|| sctx
->family
== CHIP_NAVI12
||
2954 sctx
->family
== CHIP_NAVI14
) &&
2956 sctx
->flags
|= SI_CONTEXT_VGT_FLUSH
;
2958 sctx
->ngg
= new_ngg
;
2959 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
2965 static void si_bind_gs_shader(struct pipe_context
*ctx
, void *state
)
2967 struct si_context
*sctx
= (struct si_context
*)ctx
;
2968 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
2969 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
2970 struct si_shader_selector
*sel
= state
;
2971 bool enable_changed
= !!sctx
->gs_shader
.cso
!= !!sel
;
2974 if (sctx
->gs_shader
.cso
== sel
)
2977 sctx
->gs_shader
.cso
= sel
;
2978 sctx
->gs_shader
.current
= sel
? sel
->first_variant
: NULL
;
2979 sctx
->ia_multi_vgt_param_key
.u
.uses_gs
= sel
!= NULL
;
2981 si_update_common_shader_state(sctx
);
2982 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
2984 ngg_changed
= si_update_ngg(sctx
);
2985 if (ngg_changed
|| enable_changed
)
2986 si_shader_change_notify(sctx
);
2987 if (enable_changed
) {
2988 if (sctx
->ia_multi_vgt_param_key
.u
.uses_tess
)
2989 si_update_tess_uses_prim_id(sctx
);
2991 si_update_vs_viewport_state(sctx
);
2992 si_set_active_descriptors_for_shader(sctx
, sel
);
2993 si_update_streamout_state(sctx
);
2994 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
2995 si_get_vs_state(sctx
));
2998 static void si_bind_tcs_shader(struct pipe_context
*ctx
, void *state
)
3000 struct si_context
*sctx
= (struct si_context
*)ctx
;
3001 struct si_shader_selector
*sel
= state
;
3002 bool enable_changed
= !!sctx
->tcs_shader
.cso
!= !!sel
;
3004 if (sctx
->tcs_shader
.cso
== sel
)
3007 sctx
->tcs_shader
.cso
= sel
;
3008 sctx
->tcs_shader
.current
= sel
? sel
->first_variant
: NULL
;
3009 si_update_tess_uses_prim_id(sctx
);
3011 si_update_common_shader_state(sctx
);
3014 sctx
->last_tcs
= NULL
; /* invalidate derived tess state */
3016 si_set_active_descriptors_for_shader(sctx
, sel
);
3019 static void si_bind_tes_shader(struct pipe_context
*ctx
, void *state
)
3021 struct si_context
*sctx
= (struct si_context
*)ctx
;
3022 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
3023 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
3024 struct si_shader_selector
*sel
= state
;
3025 bool enable_changed
= !!sctx
->tes_shader
.cso
!= !!sel
;
3027 if (sctx
->tes_shader
.cso
== sel
)
3030 sctx
->tes_shader
.cso
= sel
;
3031 sctx
->tes_shader
.current
= sel
? sel
->first_variant
: NULL
;
3032 sctx
->ia_multi_vgt_param_key
.u
.uses_tess
= sel
!= NULL
;
3033 si_update_tess_uses_prim_id(sctx
);
3035 si_update_common_shader_state(sctx
);
3036 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
3038 bool ngg_changed
= si_update_ngg(sctx
);
3039 if (ngg_changed
|| enable_changed
)
3040 si_shader_change_notify(sctx
);
3042 sctx
->last_tes_sh_base
= -1; /* invalidate derived tess state */
3043 si_update_vs_viewport_state(sctx
);
3044 si_set_active_descriptors_for_shader(sctx
, sel
);
3045 si_update_streamout_state(sctx
);
3046 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
3047 si_get_vs_state(sctx
));
3050 static void si_bind_ps_shader(struct pipe_context
*ctx
, void *state
)
3052 struct si_context
*sctx
= (struct si_context
*)ctx
;
3053 struct si_shader_selector
*old_sel
= sctx
->ps_shader
.cso
;
3054 struct si_shader_selector
*sel
= state
;
3056 /* skip if supplied shader is one already in use */
3060 sctx
->ps_shader
.cso
= sel
;
3061 sctx
->ps_shader
.current
= sel
? sel
->first_variant
: NULL
;
3063 si_update_common_shader_state(sctx
);
3065 if (sctx
->ia_multi_vgt_param_key
.u
.uses_tess
)
3066 si_update_tess_uses_prim_id(sctx
);
3068 if (!old_sel
|| old_sel
->info
.colors_written
!= sel
->info
.colors_written
)
3069 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.cb_render_state
);
3071 if (sctx
->screen
->has_out_of_order_rast
&&
3072 (!old_sel
|| old_sel
->info
.writes_memory
!= sel
->info
.writes_memory
||
3073 old_sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
] !=
3074 sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
]))
3075 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_config
);
3077 si_set_active_descriptors_for_shader(sctx
, sel
);
3078 si_update_ps_colorbuf0_slot(sctx
);
3081 static void si_delete_shader(struct si_context
*sctx
, struct si_shader
*shader
)
3083 if (shader
->is_optimized
) {
3084 util_queue_drop_job(&sctx
->screen
->shader_compiler_queue_low_priority
, &shader
->ready
);
3087 util_queue_fence_destroy(&shader
->ready
);
3090 /* If destroyed shaders were not unbound, the next compiled
3091 * shader variant could get the same pointer address and so
3092 * binding it to the same shader stage would be considered
3093 * a no-op, causing random behavior.
3095 switch (shader
->selector
->type
) {
3096 case PIPE_SHADER_VERTEX
:
3097 if (shader
->key
.as_ls
) {
3098 assert(sctx
->chip_class
<= GFX8
);
3099 si_pm4_delete_state(sctx
, ls
, shader
->pm4
);
3100 } else if (shader
->key
.as_es
) {
3101 assert(sctx
->chip_class
<= GFX8
);
3102 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
3103 } else if (shader
->key
.as_ngg
) {
3104 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3106 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3109 case PIPE_SHADER_TESS_CTRL
:
3110 si_pm4_delete_state(sctx
, hs
, shader
->pm4
);
3112 case PIPE_SHADER_TESS_EVAL
:
3113 if (shader
->key
.as_es
) {
3114 assert(sctx
->chip_class
<= GFX8
);
3115 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
3116 } else if (shader
->key
.as_ngg
) {
3117 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3119 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3122 case PIPE_SHADER_GEOMETRY
:
3123 if (shader
->is_gs_copy_shader
)
3124 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3126 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3128 case PIPE_SHADER_FRAGMENT
:
3129 si_pm4_delete_state(sctx
, ps
, shader
->pm4
);
3135 si_shader_selector_reference(sctx
, &shader
->previous_stage_sel
, NULL
);
3136 si_shader_destroy(shader
);
3140 static void si_destroy_shader_selector(struct pipe_context
*ctx
, void *cso
)
3142 struct si_context
*sctx
= (struct si_context
*)ctx
;
3143 struct si_shader_selector
*sel
= (struct si_shader_selector
*)cso
;
3144 struct si_shader
*p
= sel
->first_variant
, *c
;
3145 struct si_shader_ctx_state
*current_shader
[SI_NUM_SHADERS
] = {
3146 [PIPE_SHADER_VERTEX
] = &sctx
->vs_shader
, [PIPE_SHADER_TESS_CTRL
] = &sctx
->tcs_shader
,
3147 [PIPE_SHADER_TESS_EVAL
] = &sctx
->tes_shader
, [PIPE_SHADER_GEOMETRY
] = &sctx
->gs_shader
,
3148 [PIPE_SHADER_FRAGMENT
] = &sctx
->ps_shader
,
3151 util_queue_drop_job(&sctx
->screen
->shader_compiler_queue
, &sel
->ready
);
3153 if (current_shader
[sel
->type
]->cso
== sel
) {
3154 current_shader
[sel
->type
]->cso
= NULL
;
3155 current_shader
[sel
->type
]->current
= NULL
;
3159 c
= p
->next_variant
;
3160 si_delete_shader(sctx
, p
);
3164 if (sel
->main_shader_part
)
3165 si_delete_shader(sctx
, sel
->main_shader_part
);
3166 if (sel
->main_shader_part_ls
)
3167 si_delete_shader(sctx
, sel
->main_shader_part_ls
);
3168 if (sel
->main_shader_part_es
)
3169 si_delete_shader(sctx
, sel
->main_shader_part_es
);
3170 if (sel
->main_shader_part_ngg
)
3171 si_delete_shader(sctx
, sel
->main_shader_part_ngg
);
3172 if (sel
->gs_copy_shader
)
3173 si_delete_shader(sctx
, sel
->gs_copy_shader
);
3175 util_queue_fence_destroy(&sel
->ready
);
3176 simple_mtx_destroy(&sel
->mutex
);
3177 ralloc_free(sel
->nir
);
3178 free(sel
->nir_binary
);
3182 static void si_delete_shader_selector(struct pipe_context
*ctx
, void *state
)
3184 struct si_context
*sctx
= (struct si_context
*)ctx
;
3185 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
3187 si_shader_selector_reference(sctx
, &sel
, NULL
);
3190 static unsigned si_get_ps_input_cntl(struct si_context
*sctx
, struct si_shader
*vs
, unsigned name
,
3191 unsigned index
, unsigned interpolate
)
3193 struct si_shader_info
*vsinfo
= &vs
->selector
->info
;
3194 unsigned j
, offset
, ps_input_cntl
= 0;
3196 if (interpolate
== TGSI_INTERPOLATE_CONSTANT
||
3197 (interpolate
== TGSI_INTERPOLATE_COLOR
&& sctx
->flatshade
) || name
== TGSI_SEMANTIC_PRIMID
)
3198 ps_input_cntl
|= S_028644_FLAT_SHADE(1);
3200 if (name
== TGSI_SEMANTIC_PCOORD
||
3201 (name
== TGSI_SEMANTIC_TEXCOORD
&& sctx
->sprite_coord_enable
& (1 << index
))) {
3202 ps_input_cntl
|= S_028644_PT_SPRITE_TEX(1);
3205 for (j
= 0; j
< vsinfo
->num_outputs
; j
++) {
3206 if (name
== vsinfo
->output_semantic_name
[j
] && index
== vsinfo
->output_semantic_index
[j
]) {
3207 offset
= vs
->info
.vs_output_param_offset
[j
];
3209 if (offset
<= AC_EXP_PARAM_OFFSET_31
) {
3210 /* The input is loaded from parameter memory. */
3211 ps_input_cntl
|= S_028644_OFFSET(offset
);
3212 } else if (!G_028644_PT_SPRITE_TEX(ps_input_cntl
)) {
3213 if (offset
== AC_EXP_PARAM_UNDEFINED
) {
3214 /* This can happen with depth-only rendering. */
3217 /* The input is a DEFAULT_VAL constant. */
3218 assert(offset
>= AC_EXP_PARAM_DEFAULT_VAL_0000
&&
3219 offset
<= AC_EXP_PARAM_DEFAULT_VAL_1111
);
3220 offset
-= AC_EXP_PARAM_DEFAULT_VAL_0000
;
3223 ps_input_cntl
= S_028644_OFFSET(0x20) | S_028644_DEFAULT_VAL(offset
);
3229 if (j
== vsinfo
->num_outputs
&& name
== TGSI_SEMANTIC_PRIMID
)
3230 /* PrimID is written after the last output when HW VS is used. */
3231 ps_input_cntl
|= S_028644_OFFSET(vs
->info
.vs_output_param_offset
[vsinfo
->num_outputs
]);
3232 else if (j
== vsinfo
->num_outputs
&& !G_028644_PT_SPRITE_TEX(ps_input_cntl
)) {
3233 /* No corresponding output found, load defaults into input.
3234 * Don't set any other bits.
3235 * (FLAT_SHADE=1 completely changes behavior) */
3236 ps_input_cntl
= S_028644_OFFSET(0x20);
3237 /* D3D 9 behaviour. GL is undefined */
3238 if (name
== TGSI_SEMANTIC_COLOR
&& index
== 0)
3239 ps_input_cntl
|= S_028644_DEFAULT_VAL(3);
3241 return ps_input_cntl
;
3244 static void si_emit_spi_map(struct si_context
*sctx
)
3246 struct si_shader
*ps
= sctx
->ps_shader
.current
;
3247 struct si_shader
*vs
= si_get_vs_state(sctx
);
3248 struct si_shader_info
*psinfo
= ps
? &ps
->selector
->info
: NULL
;
3249 unsigned i
, num_interp
, num_written
= 0, bcol_interp
[2];
3250 unsigned spi_ps_input_cntl
[32];
3252 if (!ps
|| !ps
->selector
->info
.num_inputs
)
3255 num_interp
= si_get_ps_num_interp(ps
);
3256 assert(num_interp
> 0);
3258 for (i
= 0; i
< psinfo
->num_inputs
; i
++) {
3259 unsigned name
= psinfo
->input_semantic_name
[i
];
3260 unsigned index
= psinfo
->input_semantic_index
[i
];
3261 unsigned interpolate
= psinfo
->input_interpolate
[i
];
3263 spi_ps_input_cntl
[num_written
++] = si_get_ps_input_cntl(sctx
, vs
, name
, index
, interpolate
);
3265 if (name
== TGSI_SEMANTIC_COLOR
) {
3266 assert(index
< ARRAY_SIZE(bcol_interp
));
3267 bcol_interp
[index
] = interpolate
;
3271 if (ps
->key
.part
.ps
.prolog
.color_two_side
) {
3272 unsigned bcol
= TGSI_SEMANTIC_BCOLOR
;
3274 for (i
= 0; i
< 2; i
++) {
3275 if (!(psinfo
->colors_read
& (0xf << (i
* 4))))
3278 spi_ps_input_cntl
[num_written
++] = si_get_ps_input_cntl(sctx
, vs
, bcol
, i
, bcol_interp
[i
]);
3281 assert(num_interp
== num_written
);
3283 /* R_028644_SPI_PS_INPUT_CNTL_0 */
3284 /* Dota 2: Only ~16% of SPI map updates set different values. */
3285 /* Talos: Only ~9% of SPI map updates set different values. */
3286 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
3287 radeon_opt_set_context_regn(sctx
, R_028644_SPI_PS_INPUT_CNTL_0
, spi_ps_input_cntl
,
3288 sctx
->tracked_regs
.spi_ps_input_cntl
, num_interp
);
3290 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
3291 sctx
->context_roll
= true;
3295 * Writing CONFIG or UCONFIG VGT registers requires VGT_FLUSH before that.
3297 static void si_init_config_add_vgt_flush(struct si_context
*sctx
)
3299 if (sctx
->init_config_has_vgt_flush
)
3302 /* Done by Vulkan before VGT_FLUSH. */
3303 si_pm4_cmd_begin(sctx
->init_config
, PKT3_EVENT_WRITE
);
3304 si_pm4_cmd_add(sctx
->init_config
, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
3305 si_pm4_cmd_end(sctx
->init_config
, false);
3307 /* VGT_FLUSH is required even if VGT is idle. It resets VGT pointers. */
3308 si_pm4_cmd_begin(sctx
->init_config
, PKT3_EVENT_WRITE
);
3309 si_pm4_cmd_add(sctx
->init_config
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
3310 si_pm4_cmd_end(sctx
->init_config
, false);
3311 sctx
->init_config_has_vgt_flush
= true;
3314 /* Initialize state related to ESGS / GSVS ring buffers */
3315 static bool si_update_gs_ring_buffers(struct si_context
*sctx
)
3317 struct si_shader_selector
*es
=
3318 sctx
->tes_shader
.cso
? sctx
->tes_shader
.cso
: sctx
->vs_shader
.cso
;
3319 struct si_shader_selector
*gs
= sctx
->gs_shader
.cso
;
3320 struct si_pm4_state
*pm4
;
3322 /* Chip constants. */
3323 unsigned num_se
= sctx
->screen
->info
.max_se
;
3324 unsigned wave_size
= 64;
3325 unsigned max_gs_waves
= 32 * num_se
; /* max 32 per SE on GCN */
3326 /* On GFX6-GFX7, the value comes from VGT_GS_VERTEX_REUSE = 16.
3327 * On GFX8+, the value comes from VGT_VERTEX_REUSE_BLOCK_CNTL = 30 (+2).
3329 unsigned gs_vertex_reuse
= (sctx
->chip_class
>= GFX8
? 32 : 16) * num_se
;
3330 unsigned alignment
= 256 * num_se
;
3331 /* The maximum size is 63.999 MB per SE. */
3332 unsigned max_size
= ((unsigned)(63.999 * 1024 * 1024) & ~255) * num_se
;
3334 /* Calculate the minimum size. */
3335 unsigned min_esgs_ring_size
= align(es
->esgs_itemsize
* gs_vertex_reuse
* wave_size
, alignment
);
3337 /* These are recommended sizes, not minimum sizes. */
3338 unsigned esgs_ring_size
=
3339 max_gs_waves
* 2 * wave_size
* es
->esgs_itemsize
* gs
->gs_input_verts_per_prim
;
3340 unsigned gsvs_ring_size
= max_gs_waves
* 2 * wave_size
* gs
->max_gsvs_emit_size
;
3342 min_esgs_ring_size
= align(min_esgs_ring_size
, alignment
);
3343 esgs_ring_size
= align(esgs_ring_size
, alignment
);
3344 gsvs_ring_size
= align(gsvs_ring_size
, alignment
);
3346 esgs_ring_size
= CLAMP(esgs_ring_size
, min_esgs_ring_size
, max_size
);
3347 gsvs_ring_size
= MIN2(gsvs_ring_size
, max_size
);
3349 /* Some rings don't have to be allocated if shaders don't use them.
3350 * (e.g. no varyings between ES and GS or GS and VS)
3352 * GFX9 doesn't have the ESGS ring.
3354 bool update_esgs
= sctx
->chip_class
<= GFX8
&& esgs_ring_size
&&
3355 (!sctx
->esgs_ring
|| sctx
->esgs_ring
->width0
< esgs_ring_size
);
3357 gsvs_ring_size
&& (!sctx
->gsvs_ring
|| sctx
->gsvs_ring
->width0
< gsvs_ring_size
);
3359 if (!update_esgs
&& !update_gsvs
)
3363 pipe_resource_reference(&sctx
->esgs_ring
, NULL
);
3365 pipe_aligned_buffer_create(sctx
->b
.screen
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
,
3366 esgs_ring_size
, sctx
->screen
->info
.pte_fragment_size
);
3367 if (!sctx
->esgs_ring
)
3372 pipe_resource_reference(&sctx
->gsvs_ring
, NULL
);
3374 pipe_aligned_buffer_create(sctx
->b
.screen
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
,
3375 gsvs_ring_size
, sctx
->screen
->info
.pte_fragment_size
);
3376 if (!sctx
->gsvs_ring
)
3380 /* Create the "init_config_gs_rings" state. */
3381 pm4
= CALLOC_STRUCT(si_pm4_state
);
3385 if (sctx
->chip_class
>= GFX7
) {
3386 if (sctx
->esgs_ring
) {
3387 assert(sctx
->chip_class
<= GFX8
);
3388 si_pm4_set_reg(pm4
, R_030900_VGT_ESGS_RING_SIZE
, sctx
->esgs_ring
->width0
/ 256);
3390 if (sctx
->gsvs_ring
)
3391 si_pm4_set_reg(pm4
, R_030904_VGT_GSVS_RING_SIZE
, sctx
->gsvs_ring
->width0
/ 256);
3393 if (sctx
->esgs_ring
)
3394 si_pm4_set_reg(pm4
, R_0088C8_VGT_ESGS_RING_SIZE
, sctx
->esgs_ring
->width0
/ 256);
3395 if (sctx
->gsvs_ring
)
3396 si_pm4_set_reg(pm4
, R_0088CC_VGT_GSVS_RING_SIZE
, sctx
->gsvs_ring
->width0
/ 256);
3399 /* Set the state. */
3400 if (sctx
->init_config_gs_rings
)
3401 si_pm4_free_state(sctx
, sctx
->init_config_gs_rings
, ~0);
3402 sctx
->init_config_gs_rings
= pm4
;
3404 if (!sctx
->init_config_has_vgt_flush
) {
3405 si_init_config_add_vgt_flush(sctx
);
3406 si_pm4_upload_indirect_buffer(sctx
, sctx
->init_config
);
3409 /* Flush the context to re-emit both init_config states. */
3410 sctx
->initial_gfx_cs_size
= 0; /* force flush */
3411 si_flush_gfx_cs(sctx
, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW
, NULL
);
3413 /* Set ring bindings. */
3414 if (sctx
->esgs_ring
) {
3415 assert(sctx
->chip_class
<= GFX8
);
3416 si_set_ring_buffer(sctx
, SI_ES_RING_ESGS
, sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
, true,
3418 si_set_ring_buffer(sctx
, SI_GS_RING_ESGS
, sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
, false,
3421 if (sctx
->gsvs_ring
) {
3422 si_set_ring_buffer(sctx
, SI_RING_GSVS
, sctx
->gsvs_ring
, 0, sctx
->gsvs_ring
->width0
, false,
3429 static void si_shader_lock(struct si_shader
*shader
)
3431 simple_mtx_lock(&shader
->selector
->mutex
);
3432 if (shader
->previous_stage_sel
) {
3433 assert(shader
->previous_stage_sel
!= shader
->selector
);
3434 simple_mtx_lock(&shader
->previous_stage_sel
->mutex
);
3438 static void si_shader_unlock(struct si_shader
*shader
)
3440 if (shader
->previous_stage_sel
)
3441 simple_mtx_unlock(&shader
->previous_stage_sel
->mutex
);
3442 simple_mtx_unlock(&shader
->selector
->mutex
);
3446 * @returns 1 if \p sel has been updated to use a new scratch buffer
3448 * < 0 if there was a failure
3450 static int si_update_scratch_buffer(struct si_context
*sctx
, struct si_shader
*shader
)
3452 uint64_t scratch_va
= sctx
->scratch_buffer
->gpu_address
;
3457 /* This shader doesn't need a scratch buffer */
3458 if (shader
->config
.scratch_bytes_per_wave
== 0)
3461 /* Prevent race conditions when updating:
3462 * - si_shader::scratch_bo
3463 * - si_shader::binary::code
3464 * - si_shader::previous_stage::binary::code.
3466 si_shader_lock(shader
);
3468 /* This shader is already configured to use the current
3469 * scratch buffer. */
3470 if (shader
->scratch_bo
== sctx
->scratch_buffer
) {
3471 si_shader_unlock(shader
);
3475 assert(sctx
->scratch_buffer
);
3477 /* Replace the shader bo with a new bo that has the relocs applied. */
3478 if (!si_shader_binary_upload(sctx
->screen
, shader
, scratch_va
)) {
3479 si_shader_unlock(shader
);
3483 /* Update the shader state to use the new shader bo. */
3484 si_shader_init_pm4_state(sctx
->screen
, shader
);
3486 si_resource_reference(&shader
->scratch_bo
, sctx
->scratch_buffer
);
3488 si_shader_unlock(shader
);
3492 static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_shader
*shader
)
3494 return shader
? shader
->config
.scratch_bytes_per_wave
: 0;
3497 static struct si_shader
*si_get_tcs_current(struct si_context
*sctx
)
3499 if (!sctx
->tes_shader
.cso
)
3500 return NULL
; /* tessellation disabled */
3502 return sctx
->tcs_shader
.cso
? sctx
->tcs_shader
.current
: sctx
->fixed_func_tcs_shader
.current
;
3505 static bool si_update_scratch_relocs(struct si_context
*sctx
)
3507 struct si_shader
*tcs
= si_get_tcs_current(sctx
);
3510 /* Update the shaders, so that they are using the latest scratch.
3511 * The scratch buffer may have been changed since these shaders were
3512 * last used, so we still need to try to update them, even if they
3513 * require scratch buffers smaller than the current size.
3515 r
= si_update_scratch_buffer(sctx
, sctx
->ps_shader
.current
);
3519 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
3521 r
= si_update_scratch_buffer(sctx
, sctx
->gs_shader
.current
);
3525 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
3527 r
= si_update_scratch_buffer(sctx
, tcs
);
3531 si_pm4_bind_state(sctx
, hs
, tcs
->pm4
);
3533 /* VS can be bound as LS, ES, or VS. */
3534 r
= si_update_scratch_buffer(sctx
, sctx
->vs_shader
.current
);
3538 if (sctx
->vs_shader
.current
->key
.as_ls
)
3539 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
3540 else if (sctx
->vs_shader
.current
->key
.as_es
)
3541 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
3542 else if (sctx
->vs_shader
.current
->key
.as_ngg
)
3543 si_pm4_bind_state(sctx
, gs
, sctx
->vs_shader
.current
->pm4
);
3545 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
3548 /* TES can be bound as ES or VS. */
3549 r
= si_update_scratch_buffer(sctx
, sctx
->tes_shader
.current
);
3553 if (sctx
->tes_shader
.current
->key
.as_es
)
3554 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
3555 else if (sctx
->tes_shader
.current
->key
.as_ngg
)
3556 si_pm4_bind_state(sctx
, gs
, sctx
->tes_shader
.current
->pm4
);
3558 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
3564 static bool si_update_spi_tmpring_size(struct si_context
*sctx
)
3566 /* SPI_TMPRING_SIZE.WAVESIZE must be constant for each scratch buffer.
3567 * There are 2 cases to handle:
3569 * - If the current needed size is less than the maximum seen size,
3570 * use the maximum seen size, so that WAVESIZE remains the same.
3572 * - If the current needed size is greater than the maximum seen size,
3573 * the scratch buffer is reallocated, so we can increase WAVESIZE.
3575 * Shaders that set SCRATCH_EN=0 don't allocate scratch space.
3576 * Otherwise, the number of waves that can use scratch is
3577 * SPI_TMPRING_SIZE.WAVES.
3581 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->ps_shader
.current
));
3582 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->gs_shader
.current
));
3583 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->vs_shader
.current
));
3585 if (sctx
->tes_shader
.cso
) {
3586 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->tes_shader
.current
));
3587 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(si_get_tcs_current(sctx
)));
3590 sctx
->max_seen_scratch_bytes_per_wave
= MAX2(sctx
->max_seen_scratch_bytes_per_wave
, bytes
);
3592 unsigned scratch_needed_size
= sctx
->max_seen_scratch_bytes_per_wave
* sctx
->scratch_waves
;
3593 unsigned spi_tmpring_size
;
3595 if (scratch_needed_size
> 0) {
3596 if (!sctx
->scratch_buffer
|| scratch_needed_size
> sctx
->scratch_buffer
->b
.b
.width0
) {
3597 /* Create a bigger scratch buffer */
3598 si_resource_reference(&sctx
->scratch_buffer
, NULL
);
3600 sctx
->scratch_buffer
= si_aligned_buffer_create(
3601 &sctx
->screen
->b
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
, scratch_needed_size
,
3602 sctx
->screen
->info
.pte_fragment_size
);
3603 if (!sctx
->scratch_buffer
)
3606 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.scratch_state
);
3607 si_context_add_resource_size(sctx
, &sctx
->scratch_buffer
->b
.b
);
3610 if (!si_update_scratch_relocs(sctx
))
3614 /* The LLVM shader backend should be reporting aligned scratch_sizes. */
3615 assert((scratch_needed_size
& ~0x3FF) == scratch_needed_size
&&
3616 "scratch size should already be aligned correctly.");
3618 spi_tmpring_size
= S_0286E8_WAVES(sctx
->scratch_waves
) |
3619 S_0286E8_WAVESIZE(sctx
->max_seen_scratch_bytes_per_wave
>> 10);
3620 if (spi_tmpring_size
!= sctx
->spi_tmpring_size
) {
3621 sctx
->spi_tmpring_size
= spi_tmpring_size
;
3622 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.scratch_state
);
3627 static void si_init_tess_factor_ring(struct si_context
*sctx
)
3629 assert(!sctx
->tess_rings
);
3630 assert(((sctx
->screen
->tess_factor_ring_size
/ 4) & C_030938_SIZE
) == 0);
3632 /* The address must be aligned to 2^19, because the shader only
3633 * receives the high 13 bits.
3635 sctx
->tess_rings
= pipe_aligned_buffer_create(
3636 sctx
->b
.screen
, SI_RESOURCE_FLAG_32BIT
, PIPE_USAGE_DEFAULT
,
3637 sctx
->screen
->tess_offchip_ring_size
+ sctx
->screen
->tess_factor_ring_size
, 1 << 19);
3638 if (!sctx
->tess_rings
)
3641 si_init_config_add_vgt_flush(sctx
);
3643 si_pm4_add_bo(sctx
->init_config
, si_resource(sctx
->tess_rings
), RADEON_USAGE_READWRITE
,
3644 RADEON_PRIO_SHADER_RINGS
);
3646 uint64_t factor_va
=
3647 si_resource(sctx
->tess_rings
)->gpu_address
+ sctx
->screen
->tess_offchip_ring_size
;
3649 /* Append these registers to the init config state. */
3650 if (sctx
->chip_class
>= GFX7
) {
3651 si_pm4_set_reg(sctx
->init_config
, R_030938_VGT_TF_RING_SIZE
,
3652 S_030938_SIZE(sctx
->screen
->tess_factor_ring_size
/ 4));
3653 si_pm4_set_reg(sctx
->init_config
, R_030940_VGT_TF_MEMORY_BASE
, factor_va
>> 8);
3654 if (sctx
->chip_class
>= GFX10
)
3655 si_pm4_set_reg(sctx
->init_config
, R_030984_VGT_TF_MEMORY_BASE_HI_UMD
,
3656 S_030984_BASE_HI(factor_va
>> 40));
3657 else if (sctx
->chip_class
== GFX9
)
3658 si_pm4_set_reg(sctx
->init_config
, R_030944_VGT_TF_MEMORY_BASE_HI
,
3659 S_030944_BASE_HI(factor_va
>> 40));
3660 si_pm4_set_reg(sctx
->init_config
, R_03093C_VGT_HS_OFFCHIP_PARAM
,
3661 sctx
->screen
->vgt_hs_offchip_param
);
3663 si_pm4_set_reg(sctx
->init_config
, R_008988_VGT_TF_RING_SIZE
,
3664 S_008988_SIZE(sctx
->screen
->tess_factor_ring_size
/ 4));
3665 si_pm4_set_reg(sctx
->init_config
, R_0089B8_VGT_TF_MEMORY_BASE
, factor_va
>> 8);
3666 si_pm4_set_reg(sctx
->init_config
, R_0089B0_VGT_HS_OFFCHIP_PARAM
,
3667 sctx
->screen
->vgt_hs_offchip_param
);
3670 /* Flush the context to re-emit the init_config state.
3671 * This is done only once in a lifetime of a context.
3673 si_pm4_upload_indirect_buffer(sctx
, sctx
->init_config
);
3674 sctx
->initial_gfx_cs_size
= 0; /* force flush */
3675 si_flush_gfx_cs(sctx
, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW
, NULL
);
3678 static struct si_pm4_state
*si_build_vgt_shader_config(struct si_screen
*screen
,
3679 union si_vgt_stages_key key
)
3681 struct si_pm4_state
*pm4
= CALLOC_STRUCT(si_pm4_state
);
3682 uint32_t stages
= 0;
3685 stages
|= S_028B54_LS_EN(V_028B54_LS_STAGE_ON
) | S_028B54_HS_EN(1) | S_028B54_DYNAMIC_HS(1);
3688 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
) | S_028B54_GS_EN(1);
3690 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
);
3692 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_DS
);
3693 } else if (key
.u
.gs
) {
3694 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
) | S_028B54_GS_EN(1);
3695 } else if (key
.u
.ngg
) {
3696 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
);
3700 stages
|= S_028B54_PRIMGEN_EN(1) | S_028B54_GS_FAST_LAUNCH(key
.u
.ngg_gs_fast_launch
) |
3701 S_028B54_NGG_WAVE_ID_EN(key
.u
.streamout
) |
3702 S_028B54_PRIMGEN_PASSTHRU_EN(key
.u
.ngg_passthrough
);
3703 } else if (key
.u
.gs
)
3704 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
3706 if (screen
->info
.chip_class
>= GFX9
)
3707 stages
|= S_028B54_MAX_PRIMGRP_IN_WAVE(2);
3709 if (screen
->info
.chip_class
>= GFX10
&& screen
->ge_wave_size
== 32) {
3710 stages
|= S_028B54_HS_W32_EN(1) |
3711 S_028B54_GS_W32_EN(key
.u
.ngg
) | /* legacy GS only supports Wave64 */
3712 S_028B54_VS_W32_EN(1);
3715 si_pm4_set_reg(pm4
, R_028B54_VGT_SHADER_STAGES_EN
, stages
);
3719 static void si_update_vgt_shader_config(struct si_context
*sctx
, union si_vgt_stages_key key
)
3721 struct si_pm4_state
**pm4
= &sctx
->vgt_shader_config
[key
.index
];
3723 if (unlikely(!*pm4
))
3724 *pm4
= si_build_vgt_shader_config(sctx
->screen
, key
);
3725 si_pm4_bind_state(sctx
, vgt_shader_config
, *pm4
);
3728 bool si_update_shaders(struct si_context
*sctx
)
3730 struct pipe_context
*ctx
= (struct pipe_context
*)sctx
;
3731 struct si_compiler_ctx_state compiler_state
;
3732 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
3733 struct si_shader
*old_vs
= si_get_vs_state(sctx
);
3734 bool old_clip_disable
= old_vs
? old_vs
->key
.opt
.clip_disable
: false;
3735 struct si_shader
*old_ps
= sctx
->ps_shader
.current
;
3736 union si_vgt_stages_key key
;
3737 unsigned old_spi_shader_col_format
=
3738 old_ps
? old_ps
->key
.part
.ps
.epilog
.spi_shader_col_format
: 0;
3741 if (!sctx
->compiler
.passes
)
3742 si_init_compiler(sctx
->screen
, &sctx
->compiler
);
3744 compiler_state
.compiler
= &sctx
->compiler
;
3745 compiler_state
.debug
= sctx
->debug
;
3746 compiler_state
.is_debug_context
= sctx
->is_debug
;
3750 if (sctx
->tes_shader
.cso
)
3752 if (sctx
->gs_shader
.cso
)
3757 key
.u
.streamout
= !!si_get_vs(sctx
)->cso
->so
.num_outputs
;
3760 /* Update TCS and TES. */
3761 if (sctx
->tes_shader
.cso
) {
3762 if (!sctx
->tess_rings
) {
3763 si_init_tess_factor_ring(sctx
);
3764 if (!sctx
->tess_rings
)
3768 if (sctx
->tcs_shader
.cso
) {
3769 r
= si_shader_select(ctx
, &sctx
->tcs_shader
, key
, &compiler_state
);
3772 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
.current
->pm4
);
3774 if (!sctx
->fixed_func_tcs_shader
.cso
) {
3775 sctx
->fixed_func_tcs_shader
.cso
= si_create_fixed_func_tcs(sctx
);
3776 if (!sctx
->fixed_func_tcs_shader
.cso
)
3780 r
= si_shader_select(ctx
, &sctx
->fixed_func_tcs_shader
, key
, &compiler_state
);
3783 si_pm4_bind_state(sctx
, hs
, sctx
->fixed_func_tcs_shader
.current
->pm4
);
3786 if (!sctx
->gs_shader
.cso
|| sctx
->chip_class
<= GFX8
) {
3787 r
= si_shader_select(ctx
, &sctx
->tes_shader
, key
, &compiler_state
);
3791 if (sctx
->gs_shader
.cso
) {
3793 assert(sctx
->chip_class
<= GFX8
);
3794 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
3795 } else if (key
.u
.ngg
) {
3796 si_pm4_bind_state(sctx
, gs
, sctx
->tes_shader
.current
->pm4
);
3798 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
3802 if (sctx
->chip_class
<= GFX8
)
3803 si_pm4_bind_state(sctx
, ls
, NULL
);
3804 si_pm4_bind_state(sctx
, hs
, NULL
);
3808 if (sctx
->gs_shader
.cso
) {
3809 r
= si_shader_select(ctx
, &sctx
->gs_shader
, key
, &compiler_state
);
3812 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
3814 si_pm4_bind_state(sctx
, vs
, sctx
->gs_shader
.cso
->gs_copy_shader
->pm4
);
3816 if (!si_update_gs_ring_buffers(sctx
))
3819 si_pm4_bind_state(sctx
, vs
, NULL
);
3823 si_pm4_bind_state(sctx
, gs
, NULL
);
3824 if (sctx
->chip_class
<= GFX8
)
3825 si_pm4_bind_state(sctx
, es
, NULL
);
3830 if ((!key
.u
.tess
&& !key
.u
.gs
) || sctx
->chip_class
<= GFX8
) {
3831 r
= si_shader_select(ctx
, &sctx
->vs_shader
, key
, &compiler_state
);
3835 if (!key
.u
.tess
&& !key
.u
.gs
) {
3837 si_pm4_bind_state(sctx
, gs
, sctx
->vs_shader
.current
->pm4
);
3838 si_pm4_bind_state(sctx
, vs
, NULL
);
3840 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
3842 } else if (sctx
->tes_shader
.cso
) {
3843 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
3845 assert(sctx
->gs_shader
.cso
);
3846 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
3850 /* This must be done after the shader variant is selected. */
3852 struct si_shader
*vs
= si_get_vs(sctx
)->current
;
3854 key
.u
.ngg_passthrough
= gfx10_is_ngg_passthrough(vs
);
3855 key
.u
.ngg_gs_fast_launch
= !!(vs
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_ALL
);
3858 si_update_vgt_shader_config(sctx
, key
);
3860 if (old_clip_disable
!= si_get_vs_state(sctx
)->key
.opt
.clip_disable
)
3861 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.clip_regs
);
3863 if (sctx
->ps_shader
.cso
) {
3864 unsigned db_shader_control
;
3866 r
= si_shader_select(ctx
, &sctx
->ps_shader
, key
, &compiler_state
);
3869 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
3871 db_shader_control
= sctx
->ps_shader
.cso
->db_shader_control
|
3872 S_02880C_KILL_ENABLE(si_get_alpha_test_func(sctx
) != PIPE_FUNC_ALWAYS
);
3874 if (si_pm4_state_changed(sctx
, ps
) || si_pm4_state_changed(sctx
, vs
) ||
3875 (key
.u
.ngg
&& si_pm4_state_changed(sctx
, gs
)) ||
3876 sctx
->sprite_coord_enable
!= rs
->sprite_coord_enable
||
3877 sctx
->flatshade
!= rs
->flatshade
) {
3878 sctx
->sprite_coord_enable
= rs
->sprite_coord_enable
;
3879 sctx
->flatshade
= rs
->flatshade
;
3880 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.spi_map
);
3883 if (sctx
->screen
->info
.rbplus_allowed
&& si_pm4_state_changed(sctx
, ps
) &&
3884 (!old_ps
|| old_spi_shader_col_format
!=
3885 sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.spi_shader_col_format
))
3886 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.cb_render_state
);
3888 if (sctx
->ps_db_shader_control
!= db_shader_control
) {
3889 sctx
->ps_db_shader_control
= db_shader_control
;
3890 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
3891 if (sctx
->screen
->dpbb_allowed
)
3892 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.dpbb_state
);
3895 if (sctx
->smoothing_enabled
!=
3896 sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.poly_line_smoothing
) {
3897 sctx
->smoothing_enabled
= sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.poly_line_smoothing
;
3898 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_config
);
3900 if (sctx
->chip_class
== GFX6
)
3901 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
3903 if (sctx
->framebuffer
.nr_samples
<= 1)
3904 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_sample_locs
);
3908 if (si_pm4_state_enabled_and_changed(sctx
, ls
) || si_pm4_state_enabled_and_changed(sctx
, hs
) ||
3909 si_pm4_state_enabled_and_changed(sctx
, es
) || si_pm4_state_enabled_and_changed(sctx
, gs
) ||
3910 si_pm4_state_enabled_and_changed(sctx
, vs
) || si_pm4_state_enabled_and_changed(sctx
, ps
)) {
3911 if (!si_update_spi_tmpring_size(sctx
))
3915 if (sctx
->chip_class
>= GFX7
) {
3916 if (si_pm4_state_enabled_and_changed(sctx
, ls
))
3917 sctx
->prefetch_L2_mask
|= SI_PREFETCH_LS
;
3918 else if (!sctx
->queued
.named
.ls
)
3919 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_LS
;
3921 if (si_pm4_state_enabled_and_changed(sctx
, hs
))
3922 sctx
->prefetch_L2_mask
|= SI_PREFETCH_HS
;
3923 else if (!sctx
->queued
.named
.hs
)
3924 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_HS
;
3926 if (si_pm4_state_enabled_and_changed(sctx
, es
))
3927 sctx
->prefetch_L2_mask
|= SI_PREFETCH_ES
;
3928 else if (!sctx
->queued
.named
.es
)
3929 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_ES
;
3931 if (si_pm4_state_enabled_and_changed(sctx
, gs
))
3932 sctx
->prefetch_L2_mask
|= SI_PREFETCH_GS
;
3933 else if (!sctx
->queued
.named
.gs
)
3934 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_GS
;
3936 if (si_pm4_state_enabled_and_changed(sctx
, vs
))
3937 sctx
->prefetch_L2_mask
|= SI_PREFETCH_VS
;
3938 else if (!sctx
->queued
.named
.vs
)
3939 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_VS
;
3941 if (si_pm4_state_enabled_and_changed(sctx
, ps
))
3942 sctx
->prefetch_L2_mask
|= SI_PREFETCH_PS
;
3943 else if (!sctx
->queued
.named
.ps
)
3944 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_PS
;
3947 sctx
->do_update_shaders
= false;
3951 static void si_emit_scratch_state(struct si_context
*sctx
)
3953 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
3955 radeon_set_context_reg(cs
, R_0286E8_SPI_TMPRING_SIZE
, sctx
->spi_tmpring_size
);
3957 if (sctx
->scratch_buffer
) {
3958 radeon_add_to_buffer_list(sctx
, sctx
->gfx_cs
, sctx
->scratch_buffer
, RADEON_USAGE_READWRITE
,
3959 RADEON_PRIO_SCRATCH_BUFFER
);
3963 void si_init_screen_live_shader_cache(struct si_screen
*sscreen
)
3965 util_live_shader_cache_init(&sscreen
->live_shader_cache
, si_create_shader_selector
,
3966 si_destroy_shader_selector
);
3969 void si_init_shader_functions(struct si_context
*sctx
)
3971 sctx
->atoms
.s
.spi_map
.emit
= si_emit_spi_map
;
3972 sctx
->atoms
.s
.scratch_state
.emit
= si_emit_scratch_state
;
3974 sctx
->b
.create_vs_state
= si_create_shader
;
3975 sctx
->b
.create_tcs_state
= si_create_shader
;
3976 sctx
->b
.create_tes_state
= si_create_shader
;
3977 sctx
->b
.create_gs_state
= si_create_shader
;
3978 sctx
->b
.create_fs_state
= si_create_shader
;
3980 sctx
->b
.bind_vs_state
= si_bind_vs_shader
;
3981 sctx
->b
.bind_tcs_state
= si_bind_tcs_shader
;
3982 sctx
->b
.bind_tes_state
= si_bind_tes_shader
;
3983 sctx
->b
.bind_gs_state
= si_bind_gs_shader
;
3984 sctx
->b
.bind_fs_state
= si_bind_ps_shader
;
3986 sctx
->b
.delete_vs_state
= si_delete_shader_selector
;
3987 sctx
->b
.delete_tcs_state
= si_delete_shader_selector
;
3988 sctx
->b
.delete_tes_state
= si_delete_shader_selector
;
3989 sctx
->b
.delete_gs_state
= si_delete_shader_selector
;
3990 sctx
->b
.delete_fs_state
= si_delete_shader_selector
;