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, 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_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
483 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, S_00B524_MEM_BASE(va
>> 40));
485 shader
->config
.rsrc1
= S_00B528_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
486 S_00B528_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
487 S_00B528_VGPR_COMP_CNT(si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false)) |
488 S_00B528_DX10_CLAMP(1) | S_00B528_FLOAT_MODE(shader
->config
.float_mode
);
489 shader
->config
.rsrc2
=
490 S_00B52C_USER_SGPR(si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
)) |
491 S_00B52C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
494 static void si_shader_hs(struct si_screen
*sscreen
, struct si_shader
*shader
)
496 struct si_pm4_state
*pm4
;
499 pm4
= si_get_shader_pm4_state(shader
);
503 va
= shader
->bo
->gpu_address
;
505 if (sscreen
->info
.chip_class
>= GFX9
) {
506 if (sscreen
->info
.chip_class
>= GFX10
) {
507 si_pm4_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
508 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, S_00B524_MEM_BASE(va
>> 40));
510 si_pm4_set_reg(pm4
, R_00B410_SPI_SHADER_PGM_LO_LS
, va
>> 8);
511 si_pm4_set_reg(pm4
, R_00B414_SPI_SHADER_PGM_HI_LS
, S_00B414_MEM_BASE(va
>> 40));
514 unsigned num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_TCS_NUM_USER_SGPR
);
516 shader
->config
.rsrc2
= S_00B42C_USER_SGPR(num_user_sgprs
) |
517 S_00B42C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
519 if (sscreen
->info
.chip_class
>= GFX10
)
520 shader
->config
.rsrc2
|= S_00B42C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
522 shader
->config
.rsrc2
|= S_00B42C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
524 si_pm4_set_reg(pm4
, R_00B420_SPI_SHADER_PGM_LO_HS
, va
>> 8);
525 si_pm4_set_reg(pm4
, R_00B424_SPI_SHADER_PGM_HI_HS
, S_00B424_MEM_BASE(va
>> 40));
527 shader
->config
.rsrc2
= S_00B42C_USER_SGPR(GFX6_TCS_NUM_USER_SGPR
) | S_00B42C_OC_LDS_EN(1) |
528 S_00B42C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
532 pm4
, R_00B428_SPI_SHADER_PGM_RSRC1_HS
,
533 S_00B428_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ge_wave_size
== 32 ? 8 : 4)) |
534 (sscreen
->info
.chip_class
<= GFX9
? S_00B428_SGPRS((shader
->config
.num_sgprs
- 1) / 8)
536 S_00B428_DX10_CLAMP(1) | S_00B428_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
537 S_00B428_WGP_MODE(sscreen
->info
.chip_class
>= GFX10
) |
538 S_00B428_FLOAT_MODE(shader
->config
.float_mode
) |
539 S_00B428_LS_VGPR_COMP_CNT(sscreen
->info
.chip_class
>= GFX9
540 ? si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false)
543 if (sscreen
->info
.chip_class
<= GFX8
) {
544 si_pm4_set_reg(pm4
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
, shader
->config
.rsrc2
);
548 static void si_emit_shader_es(struct si_context
*sctx
)
550 struct si_shader
*shader
= sctx
->queued
.named
.es
->shader
;
551 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
556 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
557 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
558 shader
->selector
->esgs_itemsize
/ 4);
560 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
561 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
562 shader
->vgt_tf_param
);
564 if (shader
->vgt_vertex_reuse_block_cntl
)
565 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
566 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
567 shader
->vgt_vertex_reuse_block_cntl
);
569 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
570 sctx
->context_roll
= true;
573 static void si_shader_es(struct si_screen
*sscreen
, struct si_shader
*shader
)
575 struct si_pm4_state
*pm4
;
576 unsigned num_user_sgprs
;
577 unsigned vgpr_comp_cnt
;
581 assert(sscreen
->info
.chip_class
<= GFX8
);
583 pm4
= si_get_shader_pm4_state(shader
);
587 pm4
->atom
.emit
= si_emit_shader_es
;
588 va
= shader
->bo
->gpu_address
;
590 if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
591 vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
592 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
);
593 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
594 vgpr_comp_cnt
= shader
->selector
->info
.uses_primid
? 3 : 2;
595 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
597 unreachable("invalid shader selector type");
599 oc_lds_en
= shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
? 1 : 0;
601 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
602 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, S_00B324_MEM_BASE(va
>> 40));
603 si_pm4_set_reg(pm4
, R_00B328_SPI_SHADER_PGM_RSRC1_ES
,
604 S_00B328_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
605 S_00B328_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
606 S_00B328_VGPR_COMP_CNT(vgpr_comp_cnt
) | S_00B328_DX10_CLAMP(1) |
607 S_00B328_FLOAT_MODE(shader
->config
.float_mode
));
608 si_pm4_set_reg(pm4
, R_00B32C_SPI_SHADER_PGM_RSRC2_ES
,
609 S_00B32C_USER_SGPR(num_user_sgprs
) | S_00B32C_OC_LDS_EN(oc_lds_en
) |
610 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
612 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
613 si_set_tesseval_regs(sscreen
, shader
->selector
, pm4
);
615 polaris_set_vgt_vertex_reuse(sscreen
, shader
->selector
, shader
, pm4
);
618 void gfx9_get_gs_info(struct si_shader_selector
*es
, struct si_shader_selector
*gs
,
619 struct gfx9_gs_info
*out
)
621 unsigned gs_num_invocations
= MAX2(gs
->gs_num_invocations
, 1);
622 unsigned input_prim
= gs
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
623 bool uses_adjacency
=
624 input_prim
>= PIPE_PRIM_LINES_ADJACENCY
&& input_prim
<= PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY
;
626 /* All these are in dwords: */
627 /* We can't allow using the whole LDS, because GS waves compete with
628 * other shader stages for LDS space. */
629 const unsigned max_lds_size
= 8 * 1024;
630 const unsigned esgs_itemsize
= es
->esgs_itemsize
/ 4;
631 unsigned esgs_lds_size
;
633 /* All these are per subgroup: */
634 const unsigned max_out_prims
= 32 * 1024;
635 const unsigned max_es_verts
= 255;
636 const unsigned ideal_gs_prims
= 64;
637 unsigned max_gs_prims
, gs_prims
;
638 unsigned min_es_verts
, es_verts
, worst_case_es_verts
;
640 if (uses_adjacency
|| gs_num_invocations
> 1)
641 max_gs_prims
= 127 / gs_num_invocations
;
645 /* MAX_PRIMS_PER_SUBGROUP = gs_prims * max_vert_out * gs_invocations.
646 * Make sure we don't go over the maximum value.
648 if (gs
->gs_max_out_vertices
> 0) {
650 MIN2(max_gs_prims
, max_out_prims
/ (gs
->gs_max_out_vertices
* gs_num_invocations
));
652 assert(max_gs_prims
> 0);
654 /* If the primitive has adjacency, halve the number of vertices
655 * that will be reused in multiple primitives.
657 min_es_verts
= gs
->gs_input_verts_per_prim
/ (uses_adjacency
? 2 : 1);
659 gs_prims
= MIN2(ideal_gs_prims
, max_gs_prims
);
660 worst_case_es_verts
= MIN2(min_es_verts
* gs_prims
, max_es_verts
);
662 /* Compute ESGS LDS size based on the worst case number of ES vertices
663 * needed to create the target number of GS prims per subgroup.
665 esgs_lds_size
= esgs_itemsize
* worst_case_es_verts
;
667 /* If total LDS usage is too big, refactor partitions based on ratio
668 * of ESGS item sizes.
670 if (esgs_lds_size
> max_lds_size
) {
671 /* Our target GS Prims Per Subgroup was too large. Calculate
672 * the maximum number of GS Prims Per Subgroup that will fit
673 * into LDS, capped by the maximum that the hardware can support.
675 gs_prims
= MIN2((max_lds_size
/ (esgs_itemsize
* min_es_verts
)), max_gs_prims
);
676 assert(gs_prims
> 0);
677 worst_case_es_verts
= MIN2(min_es_verts
* gs_prims
, max_es_verts
);
679 esgs_lds_size
= esgs_itemsize
* worst_case_es_verts
;
680 assert(esgs_lds_size
<= max_lds_size
);
683 /* Now calculate remaining ESGS information. */
685 es_verts
= MIN2(esgs_lds_size
/ esgs_itemsize
, max_es_verts
);
687 es_verts
= max_es_verts
;
689 /* Vertices for adjacency primitives are not always reused, so restore
690 * it for ES_VERTS_PER_SUBGRP.
692 min_es_verts
= gs
->gs_input_verts_per_prim
;
694 /* For normal primitives, the VGT only checks if they are past the ES
695 * verts per subgroup after allocating a full GS primitive and if they
696 * are, kick off a new subgroup. But if those additional ES verts are
697 * unique (e.g. not reused) we need to make sure there is enough LDS
698 * space to account for those ES verts beyond ES_VERTS_PER_SUBGRP.
700 es_verts
-= min_es_verts
- 1;
702 out
->es_verts_per_subgroup
= es_verts
;
703 out
->gs_prims_per_subgroup
= gs_prims
;
704 out
->gs_inst_prims_in_subgroup
= gs_prims
* gs_num_invocations
;
705 out
->max_prims_per_subgroup
= out
->gs_inst_prims_in_subgroup
* gs
->gs_max_out_vertices
;
706 out
->esgs_ring_size
= 4 * esgs_lds_size
;
708 assert(out
->max_prims_per_subgroup
<= max_out_prims
);
711 static void si_emit_shader_gs(struct si_context
*sctx
)
713 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
714 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
719 /* R_028A60_VGT_GSVS_RING_OFFSET_1, R_028A64_VGT_GSVS_RING_OFFSET_2
720 * R_028A68_VGT_GSVS_RING_OFFSET_3 */
721 radeon_opt_set_context_reg3(
722 sctx
, R_028A60_VGT_GSVS_RING_OFFSET_1
, SI_TRACKED_VGT_GSVS_RING_OFFSET_1
,
723 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_1
, shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_2
,
724 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_3
);
726 /* R_028AB0_VGT_GSVS_RING_ITEMSIZE */
727 radeon_opt_set_context_reg(sctx
, R_028AB0_VGT_GSVS_RING_ITEMSIZE
,
728 SI_TRACKED_VGT_GSVS_RING_ITEMSIZE
,
729 shader
->ctx_reg
.gs
.vgt_gsvs_ring_itemsize
);
731 /* R_028B38_VGT_GS_MAX_VERT_OUT */
732 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
733 shader
->ctx_reg
.gs
.vgt_gs_max_vert_out
);
735 /* R_028B5C_VGT_GS_VERT_ITEMSIZE, R_028B60_VGT_GS_VERT_ITEMSIZE_1
736 * R_028B64_VGT_GS_VERT_ITEMSIZE_2, R_028B68_VGT_GS_VERT_ITEMSIZE_3 */
737 radeon_opt_set_context_reg4(
738 sctx
, R_028B5C_VGT_GS_VERT_ITEMSIZE
, SI_TRACKED_VGT_GS_VERT_ITEMSIZE
,
739 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize
, shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_1
,
740 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_2
, shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_3
);
742 /* R_028B90_VGT_GS_INSTANCE_CNT */
743 radeon_opt_set_context_reg(sctx
, R_028B90_VGT_GS_INSTANCE_CNT
, SI_TRACKED_VGT_GS_INSTANCE_CNT
,
744 shader
->ctx_reg
.gs
.vgt_gs_instance_cnt
);
746 if (sctx
->chip_class
>= GFX9
) {
747 /* R_028A44_VGT_GS_ONCHIP_CNTL */
748 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
, SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
749 shader
->ctx_reg
.gs
.vgt_gs_onchip_cntl
);
750 /* R_028A94_VGT_GS_MAX_PRIMS_PER_SUBGROUP */
751 radeon_opt_set_context_reg(sctx
, R_028A94_VGT_GS_MAX_PRIMS_PER_SUBGROUP
,
752 SI_TRACKED_VGT_GS_MAX_PRIMS_PER_SUBGROUP
,
753 shader
->ctx_reg
.gs
.vgt_gs_max_prims_per_subgroup
);
754 /* R_028AAC_VGT_ESGS_RING_ITEMSIZE */
755 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
756 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
757 shader
->ctx_reg
.gs
.vgt_esgs_ring_itemsize
);
759 if (shader
->key
.part
.gs
.es
->type
== PIPE_SHADER_TESS_EVAL
)
760 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
761 shader
->vgt_tf_param
);
762 if (shader
->vgt_vertex_reuse_block_cntl
)
763 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
764 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
765 shader
->vgt_vertex_reuse_block_cntl
);
768 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
769 sctx
->context_roll
= true;
772 static void si_shader_gs(struct si_screen
*sscreen
, struct si_shader
*shader
)
774 struct si_shader_selector
*sel
= shader
->selector
;
775 const ubyte
*num_components
= sel
->info
.num_stream_output_components
;
776 unsigned gs_num_invocations
= sel
->gs_num_invocations
;
777 struct si_pm4_state
*pm4
;
779 unsigned max_stream
= sel
->max_gs_stream
;
782 pm4
= si_get_shader_pm4_state(shader
);
786 pm4
->atom
.emit
= si_emit_shader_gs
;
788 offset
= num_components
[0] * sel
->gs_max_out_vertices
;
789 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_1
= offset
;
792 offset
+= num_components
[1] * sel
->gs_max_out_vertices
;
793 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_2
= offset
;
796 offset
+= num_components
[2] * sel
->gs_max_out_vertices
;
797 shader
->ctx_reg
.gs
.vgt_gsvs_ring_offset_3
= offset
;
800 offset
+= num_components
[3] * sel
->gs_max_out_vertices
;
801 shader
->ctx_reg
.gs
.vgt_gsvs_ring_itemsize
= offset
;
803 /* The GSVS_RING_ITEMSIZE register takes 15 bits */
804 assert(offset
< (1 << 15));
806 shader
->ctx_reg
.gs
.vgt_gs_max_vert_out
= sel
->gs_max_out_vertices
;
808 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize
= num_components
[0];
809 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_1
= (max_stream
>= 1) ? num_components
[1] : 0;
810 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_2
= (max_stream
>= 2) ? num_components
[2] : 0;
811 shader
->ctx_reg
.gs
.vgt_gs_vert_itemsize_3
= (max_stream
>= 3) ? num_components
[3] : 0;
813 shader
->ctx_reg
.gs
.vgt_gs_instance_cnt
=
814 S_028B90_CNT(MIN2(gs_num_invocations
, 127)) | S_028B90_ENABLE(gs_num_invocations
> 0);
816 va
= shader
->bo
->gpu_address
;
818 if (sscreen
->info
.chip_class
>= GFX9
) {
819 unsigned input_prim
= sel
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
820 unsigned es_type
= shader
->key
.part
.gs
.es
->type
;
821 unsigned es_vgpr_comp_cnt
, gs_vgpr_comp_cnt
;
823 if (es_type
== PIPE_SHADER_VERTEX
) {
824 es_vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
825 } else if (es_type
== PIPE_SHADER_TESS_EVAL
)
826 es_vgpr_comp_cnt
= shader
->key
.part
.gs
.es
->info
.uses_primid
? 3 : 2;
828 unreachable("invalid shader selector type");
830 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
831 * VGPR[0:4] are always loaded.
833 if (sel
->info
.uses_invocationid
)
834 gs_vgpr_comp_cnt
= 3; /* VGPR3 contains InvocationID. */
835 else if (sel
->info
.uses_primid
)
836 gs_vgpr_comp_cnt
= 2; /* VGPR2 contains PrimitiveID. */
837 else if (input_prim
>= PIPE_PRIM_TRIANGLES
)
838 gs_vgpr_comp_cnt
= 1; /* VGPR1 contains offsets 2, 3 */
840 gs_vgpr_comp_cnt
= 0; /* VGPR0 contains offsets 0, 1 */
842 unsigned num_user_sgprs
;
843 if (es_type
== PIPE_SHADER_VERTEX
)
844 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_VSGS_NUM_USER_SGPR
);
846 num_user_sgprs
= GFX9_TESGS_NUM_USER_SGPR
;
848 if (sscreen
->info
.chip_class
>= GFX10
) {
849 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
850 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, S_00B324_MEM_BASE(va
>> 40));
852 si_pm4_set_reg(pm4
, R_00B210_SPI_SHADER_PGM_LO_ES
, va
>> 8);
853 si_pm4_set_reg(pm4
, R_00B214_SPI_SHADER_PGM_HI_ES
, S_00B214_MEM_BASE(va
>> 40));
856 uint32_t rsrc1
= S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / 4) | S_00B228_DX10_CLAMP(1) |
857 S_00B228_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
858 S_00B228_WGP_MODE(sscreen
->info
.chip_class
>= GFX10
) |
859 S_00B228_FLOAT_MODE(shader
->config
.float_mode
) |
860 S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt
);
861 uint32_t rsrc2
= S_00B22C_USER_SGPR(num_user_sgprs
) |
862 S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt
) |
863 S_00B22C_OC_LDS_EN(es_type
== PIPE_SHADER_TESS_EVAL
) |
864 S_00B22C_LDS_SIZE(shader
->config
.lds_size
) |
865 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
867 if (sscreen
->info
.chip_class
>= GFX10
) {
868 rsrc2
|= S_00B22C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
870 rsrc1
|= S_00B228_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
871 rsrc2
|= S_00B22C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
874 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
, rsrc1
);
875 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
, rsrc2
);
877 if (sscreen
->info
.chip_class
>= GFX10
) {
878 si_pm4_set_reg(pm4
, R_00B204_SPI_SHADER_PGM_RSRC4_GS
,
879 S_00B204_CU_EN(0xffff) | S_00B204_SPI_SHADER_LATE_ALLOC_GS_GFX10(0));
882 shader
->ctx_reg
.gs
.vgt_gs_onchip_cntl
=
883 S_028A44_ES_VERTS_PER_SUBGRP(shader
->gs_info
.es_verts_per_subgroup
) |
884 S_028A44_GS_PRIMS_PER_SUBGRP(shader
->gs_info
.gs_prims_per_subgroup
) |
885 S_028A44_GS_INST_PRIMS_IN_SUBGRP(shader
->gs_info
.gs_inst_prims_in_subgroup
);
886 shader
->ctx_reg
.gs
.vgt_gs_max_prims_per_subgroup
=
887 S_028A94_MAX_PRIMS_PER_SUBGROUP(shader
->gs_info
.max_prims_per_subgroup
);
888 shader
->ctx_reg
.gs
.vgt_esgs_ring_itemsize
= shader
->key
.part
.gs
.es
->esgs_itemsize
/ 4;
890 if (es_type
== PIPE_SHADER_TESS_EVAL
)
891 si_set_tesseval_regs(sscreen
, shader
->key
.part
.gs
.es
, pm4
);
893 polaris_set_vgt_vertex_reuse(sscreen
, shader
->key
.part
.gs
.es
, NULL
, pm4
);
895 si_pm4_set_reg(pm4
, R_00B220_SPI_SHADER_PGM_LO_GS
, va
>> 8);
896 si_pm4_set_reg(pm4
, R_00B224_SPI_SHADER_PGM_HI_GS
, S_00B224_MEM_BASE(va
>> 40));
898 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
899 S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
900 S_00B228_SGPRS((shader
->config
.num_sgprs
- 1) / 8) |
901 S_00B228_DX10_CLAMP(1) | S_00B228_FLOAT_MODE(shader
->config
.float_mode
));
902 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
903 S_00B22C_USER_SGPR(GFX6_GS_NUM_USER_SGPR
) |
904 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
908 static void gfx10_emit_ge_pc_alloc(struct si_context
*sctx
, unsigned value
)
910 enum si_tracked_reg reg
= SI_TRACKED_GE_PC_ALLOC
;
912 if (((sctx
->tracked_regs
.reg_saved
>> reg
) & 0x1) != 0x1 ||
913 sctx
->tracked_regs
.reg_value
[reg
] != value
) {
914 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
916 if (sctx
->chip_class
== GFX10
) {
917 /* SQ_NON_EVENT must be emitted before GE_PC_ALLOC is written. */
918 radeon_emit(cs
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
919 radeon_emit(cs
, EVENT_TYPE(V_028A90_SQ_NON_EVENT
) | EVENT_INDEX(0));
922 radeon_set_uconfig_reg(cs
, R_030980_GE_PC_ALLOC
, value
);
924 sctx
->tracked_regs
.reg_saved
|= 0x1ull
<< reg
;
925 sctx
->tracked_regs
.reg_value
[reg
] = value
;
929 /* Common tail code for NGG primitive shaders. */
930 static void gfx10_emit_shader_ngg_tail(struct si_context
*sctx
, struct si_shader
*shader
,
931 unsigned initial_cdw
)
933 radeon_opt_set_context_reg(sctx
, R_0287FC_GE_MAX_OUTPUT_PER_SUBGROUP
,
934 SI_TRACKED_GE_MAX_OUTPUT_PER_SUBGROUP
,
935 shader
->ctx_reg
.ngg
.ge_max_output_per_subgroup
);
936 radeon_opt_set_context_reg(sctx
, R_028B4C_GE_NGG_SUBGRP_CNTL
, SI_TRACKED_GE_NGG_SUBGRP_CNTL
,
937 shader
->ctx_reg
.ngg
.ge_ngg_subgrp_cntl
);
938 radeon_opt_set_context_reg(sctx
, R_028A84_VGT_PRIMITIVEID_EN
, SI_TRACKED_VGT_PRIMITIVEID_EN
,
939 shader
->ctx_reg
.ngg
.vgt_primitiveid_en
);
940 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
, SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
941 shader
->ctx_reg
.ngg
.vgt_gs_onchip_cntl
);
942 radeon_opt_set_context_reg(sctx
, R_028B90_VGT_GS_INSTANCE_CNT
, SI_TRACKED_VGT_GS_INSTANCE_CNT
,
943 shader
->ctx_reg
.ngg
.vgt_gs_instance_cnt
);
944 radeon_opt_set_context_reg(sctx
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
945 SI_TRACKED_VGT_ESGS_RING_ITEMSIZE
,
946 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
);
947 radeon_opt_set_context_reg(sctx
, R_0286C4_SPI_VS_OUT_CONFIG
, SI_TRACKED_SPI_VS_OUT_CONFIG
,
948 shader
->ctx_reg
.ngg
.spi_vs_out_config
);
949 radeon_opt_set_context_reg2(
950 sctx
, R_028708_SPI_SHADER_IDX_FORMAT
, SI_TRACKED_SPI_SHADER_IDX_FORMAT
,
951 shader
->ctx_reg
.ngg
.spi_shader_idx_format
, shader
->ctx_reg
.ngg
.spi_shader_pos_format
);
952 radeon_opt_set_context_reg(sctx
, R_028818_PA_CL_VTE_CNTL
, SI_TRACKED_PA_CL_VTE_CNTL
,
953 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
);
954 radeon_opt_set_context_reg(sctx
, R_028838_PA_CL_NGG_CNTL
, SI_TRACKED_PA_CL_NGG_CNTL
,
955 shader
->ctx_reg
.ngg
.pa_cl_ngg_cntl
);
957 radeon_opt_set_context_reg_rmw(sctx
, R_02881C_PA_CL_VS_OUT_CNTL
,
958 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS
, shader
->pa_cl_vs_out_cntl
,
959 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS_MASK
);
961 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
962 sctx
->context_roll
= true;
964 /* GE_PC_ALLOC is not a context register, so it doesn't cause a context roll. */
965 gfx10_emit_ge_pc_alloc(sctx
, shader
->ctx_reg
.ngg
.ge_pc_alloc
);
968 static void gfx10_emit_shader_ngg_notess_nogs(struct si_context
*sctx
)
970 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
971 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
976 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
979 static void gfx10_emit_shader_ngg_tess_nogs(struct si_context
*sctx
)
981 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
982 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
987 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
988 shader
->vgt_tf_param
);
990 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
993 static void gfx10_emit_shader_ngg_notess_gs(struct si_context
*sctx
)
995 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
996 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1001 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
1002 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
);
1004 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
1007 static void gfx10_emit_shader_ngg_tess_gs(struct si_context
*sctx
)
1009 struct si_shader
*shader
= sctx
->queued
.named
.gs
->shader
;
1010 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1015 radeon_opt_set_context_reg(sctx
, R_028B38_VGT_GS_MAX_VERT_OUT
, SI_TRACKED_VGT_GS_MAX_VERT_OUT
,
1016 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
);
1017 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
1018 shader
->vgt_tf_param
);
1020 gfx10_emit_shader_ngg_tail(sctx
, shader
, initial_cdw
);
1023 unsigned si_get_input_prim(const struct si_shader_selector
*gs
)
1025 if (gs
->type
== PIPE_SHADER_GEOMETRY
)
1026 return gs
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
];
1028 if (gs
->type
== PIPE_SHADER_TESS_EVAL
) {
1029 if (gs
->info
.properties
[TGSI_PROPERTY_TES_POINT_MODE
])
1030 return PIPE_PRIM_POINTS
;
1031 if (gs
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
] == PIPE_PRIM_LINES
)
1032 return PIPE_PRIM_LINES
;
1033 return PIPE_PRIM_TRIANGLES
;
1036 /* TODO: Set this correctly if the primitive type is set in the shader key. */
1037 return PIPE_PRIM_TRIANGLES
; /* worst case for all callers */
1040 static unsigned si_get_vs_out_cntl(const struct si_shader_selector
*sel
, bool ngg
)
1042 bool misc_vec_ena
= sel
->info
.writes_psize
|| (sel
->info
.writes_edgeflag
&& !ngg
) ||
1043 sel
->info
.writes_layer
|| sel
->info
.writes_viewport_index
;
1044 return S_02881C_USE_VTX_POINT_SIZE(sel
->info
.writes_psize
) |
1045 S_02881C_USE_VTX_EDGE_FLAG(sel
->info
.writes_edgeflag
&& !ngg
) |
1046 S_02881C_USE_VTX_RENDER_TARGET_INDX(sel
->info
.writes_layer
) |
1047 S_02881C_USE_VTX_VIEWPORT_INDX(sel
->info
.writes_viewport_index
) |
1048 S_02881C_VS_OUT_MISC_VEC_ENA(misc_vec_ena
) |
1049 S_02881C_VS_OUT_MISC_SIDE_BUS_ENA(misc_vec_ena
);
1053 * Prepare the PM4 image for \p shader, which will run as a merged ESGS shader
1056 static void gfx10_shader_ngg(struct si_screen
*sscreen
, struct si_shader
*shader
)
1058 const struct si_shader_selector
*gs_sel
= shader
->selector
;
1059 const struct si_shader_info
*gs_info
= &gs_sel
->info
;
1060 enum pipe_shader_type gs_type
= shader
->selector
->type
;
1061 const struct si_shader_selector
*es_sel
=
1062 shader
->previous_stage_sel
? shader
->previous_stage_sel
: shader
->selector
;
1063 const struct si_shader_info
*es_info
= &es_sel
->info
;
1064 enum pipe_shader_type es_type
= es_sel
->type
;
1065 unsigned num_user_sgprs
;
1066 unsigned nparams
, es_vgpr_comp_cnt
, gs_vgpr_comp_cnt
;
1068 unsigned window_space
= gs_info
->properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
1069 bool es_enable_prim_id
= shader
->key
.mono
.u
.vs_export_prim_id
|| es_info
->uses_primid
;
1070 unsigned gs_num_invocations
= MAX2(gs_sel
->gs_num_invocations
, 1);
1071 unsigned input_prim
= si_get_input_prim(gs_sel
);
1072 bool break_wave_at_eoi
= false;
1073 struct si_pm4_state
*pm4
= si_get_shader_pm4_state(shader
);
1077 if (es_type
== PIPE_SHADER_TESS_EVAL
) {
1078 pm4
->atom
.emit
= gs_type
== PIPE_SHADER_GEOMETRY
? gfx10_emit_shader_ngg_tess_gs
1079 : gfx10_emit_shader_ngg_tess_nogs
;
1081 pm4
->atom
.emit
= gs_type
== PIPE_SHADER_GEOMETRY
? gfx10_emit_shader_ngg_notess_gs
1082 : gfx10_emit_shader_ngg_notess_nogs
;
1085 va
= shader
->bo
->gpu_address
;
1087 if (es_type
== PIPE_SHADER_VERTEX
) {
1088 es_vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, false);
1090 if (es_info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]) {
1092 SI_SGPR_VS_BLIT_DATA
+ es_info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
1094 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, GFX9_VSGS_NUM_USER_SGPR
);
1097 assert(es_type
== PIPE_SHADER_TESS_EVAL
);
1098 es_vgpr_comp_cnt
= es_enable_prim_id
? 3 : 2;
1099 num_user_sgprs
= GFX9_TESGS_NUM_USER_SGPR
;
1101 if (es_enable_prim_id
|| gs_info
->uses_primid
)
1102 break_wave_at_eoi
= true;
1105 /* If offsets 4, 5 are used, GS_VGPR_COMP_CNT is ignored and
1106 * VGPR[0:4] are always loaded.
1108 * Vertex shaders always need to load VGPR3, because they need to
1109 * pass edge flags for decomposed primitives (such as quads) to the PA
1110 * for the GL_LINE polygon mode to skip rendering lines on inner edges.
1112 if (gs_info
->uses_invocationid
||
1113 (gs_type
== PIPE_SHADER_VERTEX
&& !gfx10_is_ngg_passthrough(shader
)))
1114 gs_vgpr_comp_cnt
= 3; /* VGPR3 contains InvocationID, edge flags. */
1115 else if ((gs_type
== PIPE_SHADER_GEOMETRY
&& gs_info
->uses_primid
) ||
1116 (gs_type
== PIPE_SHADER_VERTEX
&& shader
->key
.mono
.u
.vs_export_prim_id
))
1117 gs_vgpr_comp_cnt
= 2; /* VGPR2 contains PrimitiveID. */
1118 else if (input_prim
>= PIPE_PRIM_TRIANGLES
&& !gfx10_is_ngg_passthrough(shader
))
1119 gs_vgpr_comp_cnt
= 1; /* VGPR1 contains offsets 2, 3 */
1121 gs_vgpr_comp_cnt
= 0; /* VGPR0 contains offsets 0, 1 */
1123 unsigned wave_size
= si_get_shader_wave_size(shader
);
1125 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
1126 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, va
>> 40);
1128 pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
1129 S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / (wave_size
== 32 ? 8 : 4)) |
1130 S_00B228_FLOAT_MODE(shader
->config
.float_mode
) | S_00B228_DX10_CLAMP(1) |
1131 S_00B228_MEM_ORDERED(1) | S_00B228_WGP_MODE(1) |
1132 S_00B228_GS_VGPR_COMP_CNT(gs_vgpr_comp_cnt
));
1133 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
1134 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0) |
1135 S_00B22C_USER_SGPR(num_user_sgprs
) |
1136 S_00B22C_ES_VGPR_COMP_CNT(es_vgpr_comp_cnt
) |
1137 S_00B22C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5) |
1138 S_00B22C_OC_LDS_EN(es_type
== PIPE_SHADER_TESS_EVAL
) |
1139 S_00B22C_LDS_SIZE(shader
->config
.lds_size
));
1141 /* Determine LATE_ALLOC_GS. */
1142 unsigned num_cu_per_sh
= sscreen
->info
.min_good_cu_per_sa
;
1143 unsigned late_alloc_wave64
; /* The limit is per SA. */
1145 /* For Wave32, the hw will launch twice the number of late
1146 * alloc waves, so 1 == 2x wave32.
1148 * Don't use late alloc for NGG on Navi14 due to a hw bug.
1150 if (sscreen
->info
.family
== CHIP_NAVI14
|| !sscreen
->info
.use_late_alloc
)
1151 late_alloc_wave64
= 0;
1152 else if (num_cu_per_sh
<= 6)
1153 late_alloc_wave64
= num_cu_per_sh
- 2; /* All CUs enabled */
1154 else if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_ALL
)
1155 late_alloc_wave64
= (num_cu_per_sh
- 2) * 6;
1157 late_alloc_wave64
= (num_cu_per_sh
- 2) * 4;
1159 /* Limit LATE_ALLOC_GS for prevent a hang (hw bug). */
1160 if (sscreen
->info
.chip_class
== GFX10
)
1161 late_alloc_wave64
= MIN2(late_alloc_wave64
, 64);
1164 pm4
, R_00B204_SPI_SHADER_PGM_RSRC4_GS
,
1165 S_00B204_CU_EN(0xffff) | S_00B204_SPI_SHADER_LATE_ALLOC_GS_GFX10(late_alloc_wave64
));
1167 nparams
= MAX2(shader
->info
.nr_param_exports
, 1);
1168 shader
->ctx_reg
.ngg
.spi_vs_out_config
=
1169 S_0286C4_VS_EXPORT_COUNT(nparams
- 1) |
1170 S_0286C4_NO_PC_EXPORT(shader
->info
.nr_param_exports
== 0);
1172 shader
->ctx_reg
.ngg
.spi_shader_idx_format
=
1173 S_028708_IDX0_EXPORT_FORMAT(V_028708_SPI_SHADER_1COMP
);
1174 shader
->ctx_reg
.ngg
.spi_shader_pos_format
=
1175 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
1176 S_02870C_POS1_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 1 ? V_02870C_SPI_SHADER_4COMP
1177 : V_02870C_SPI_SHADER_NONE
) |
1178 S_02870C_POS2_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 2 ? V_02870C_SPI_SHADER_4COMP
1179 : V_02870C_SPI_SHADER_NONE
) |
1180 S_02870C_POS3_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 3 ? V_02870C_SPI_SHADER_4COMP
1181 : V_02870C_SPI_SHADER_NONE
);
1183 shader
->ctx_reg
.ngg
.vgt_primitiveid_en
=
1184 S_028A84_PRIMITIVEID_EN(es_enable_prim_id
) |
1185 S_028A84_NGG_DISABLE_PROVOK_REUSE(shader
->key
.mono
.u
.vs_export_prim_id
||
1186 gs_sel
->info
.writes_primid
);
1188 if (gs_type
== PIPE_SHADER_GEOMETRY
) {
1189 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
= es_sel
->esgs_itemsize
/ 4;
1190 shader
->ctx_reg
.ngg
.vgt_gs_max_vert_out
= gs_sel
->gs_max_out_vertices
;
1192 shader
->ctx_reg
.ngg
.vgt_esgs_ring_itemsize
= 1;
1195 if (es_type
== PIPE_SHADER_TESS_EVAL
)
1196 si_set_tesseval_regs(sscreen
, es_sel
, pm4
);
1198 shader
->ctx_reg
.ngg
.vgt_gs_onchip_cntl
=
1199 S_028A44_ES_VERTS_PER_SUBGRP(shader
->ngg
.hw_max_esverts
) |
1200 S_028A44_GS_PRIMS_PER_SUBGRP(shader
->ngg
.max_gsprims
) |
1201 S_028A44_GS_INST_PRIMS_IN_SUBGRP(shader
->ngg
.max_gsprims
* gs_num_invocations
);
1202 shader
->ctx_reg
.ngg
.ge_max_output_per_subgroup
=
1203 S_0287FC_MAX_VERTS_PER_SUBGROUP(shader
->ngg
.max_out_verts
);
1204 shader
->ctx_reg
.ngg
.ge_ngg_subgrp_cntl
= S_028B4C_PRIM_AMP_FACTOR(shader
->ngg
.prim_amp_factor
) |
1205 S_028B4C_THDS_PER_SUBGRP(0); /* for fast launch */
1206 shader
->ctx_reg
.ngg
.vgt_gs_instance_cnt
=
1207 S_028B90_CNT(gs_num_invocations
) | S_028B90_ENABLE(gs_num_invocations
> 1) |
1208 S_028B90_EN_MAX_VERT_OUT_PER_GS_INSTANCE(shader
->ngg
.max_vert_out_per_gs_instance
);
1210 /* Always output hw-generated edge flags and pass them via the prim
1211 * export to prevent drawing lines on internal edges of decomposed
1212 * primitives (such as quads) with polygon mode = lines. Only VS needs
1215 shader
->ctx_reg
.ngg
.pa_cl_ngg_cntl
=
1216 S_028838_INDEX_BUF_EDGE_FLAG_ENA(gs_type
== PIPE_SHADER_VERTEX
) |
1217 /* Reuse for NGG. */
1218 S_028838_VERTEX_REUSE_DEPTH_GFX103(sscreen
->info
.chip_class
>= GFX10_3
? 30 : 0);
1219 shader
->pa_cl_vs_out_cntl
= si_get_vs_out_cntl(gs_sel
, true);
1221 /* Oversubscribe PC. This improves performance when there are too many varyings. */
1222 float oversub_pc_factor
= 0.25;
1224 if (shader
->key
.opt
.ngg_culling
) {
1225 /* Be more aggressive with NGG culling. */
1226 if (shader
->info
.nr_param_exports
> 4)
1227 oversub_pc_factor
= 1;
1228 else if (shader
->info
.nr_param_exports
> 2)
1229 oversub_pc_factor
= 0.75;
1231 oversub_pc_factor
= 0.5;
1234 unsigned oversub_pc_lines
= sscreen
->info
.pc_lines
* oversub_pc_factor
;
1235 shader
->ctx_reg
.ngg
.ge_pc_alloc
= S_030980_OVERSUB_EN(sscreen
->info
.use_late_alloc
) |
1236 S_030980_NUM_PC_LINES(oversub_pc_lines
- 1);
1238 if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_TRI_LIST
) {
1239 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1240 S_03096C_VERT_GRP_SIZE(shader
->ngg
.max_gsprims
* 3);
1241 } else if (shader
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_TRI_STRIP
) {
1242 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1243 S_03096C_VERT_GRP_SIZE(shader
->ngg
.max_gsprims
+ 2);
1245 shader
->ge_cntl
= S_03096C_PRIM_GRP_SIZE(shader
->ngg
.max_gsprims
) |
1246 S_03096C_VERT_GRP_SIZE(256) | /* 256 = disable vertex grouping */
1247 S_03096C_BREAK_WAVE_AT_EOI(break_wave_at_eoi
);
1249 /* Bug workaround for a possible hang with non-tessellation cases.
1250 * Tessellation always sets GE_CNTL.VERT_GRP_SIZE = 0
1252 * Requirement: GE_CNTL.VERT_GRP_SIZE = VGT_GS_ONCHIP_CNTL.ES_VERTS_PER_SUBGRP - 5
1254 if ((sscreen
->info
.chip_class
== GFX10
) &&
1255 (es_type
== PIPE_SHADER_VERTEX
|| gs_type
== PIPE_SHADER_VERTEX
) && /* = no tess */
1256 shader
->ngg
.hw_max_esverts
!= 256) {
1257 shader
->ge_cntl
&= C_03096C_VERT_GRP_SIZE
;
1259 if (shader
->ngg
.hw_max_esverts
> 5) {
1260 shader
->ge_cntl
|= S_03096C_VERT_GRP_SIZE(shader
->ngg
.hw_max_esverts
- 5);
1266 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
= S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1);
1268 shader
->ctx_reg
.ngg
.pa_cl_vte_cntl
=
1269 S_028818_VTX_W0_FMT(1) | S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
1270 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
1271 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1);
1275 static void si_emit_shader_vs(struct si_context
*sctx
)
1277 struct si_shader
*shader
= sctx
->queued
.named
.vs
->shader
;
1278 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1283 radeon_opt_set_context_reg(sctx
, R_028A40_VGT_GS_MODE
, SI_TRACKED_VGT_GS_MODE
,
1284 shader
->ctx_reg
.vs
.vgt_gs_mode
);
1285 radeon_opt_set_context_reg(sctx
, R_028A84_VGT_PRIMITIVEID_EN
, SI_TRACKED_VGT_PRIMITIVEID_EN
,
1286 shader
->ctx_reg
.vs
.vgt_primitiveid_en
);
1288 if (sctx
->chip_class
<= GFX8
) {
1289 radeon_opt_set_context_reg(sctx
, R_028AB4_VGT_REUSE_OFF
, SI_TRACKED_VGT_REUSE_OFF
,
1290 shader
->ctx_reg
.vs
.vgt_reuse_off
);
1293 radeon_opt_set_context_reg(sctx
, R_0286C4_SPI_VS_OUT_CONFIG
, SI_TRACKED_SPI_VS_OUT_CONFIG
,
1294 shader
->ctx_reg
.vs
.spi_vs_out_config
);
1296 radeon_opt_set_context_reg(sctx
, R_02870C_SPI_SHADER_POS_FORMAT
,
1297 SI_TRACKED_SPI_SHADER_POS_FORMAT
,
1298 shader
->ctx_reg
.vs
.spi_shader_pos_format
);
1300 radeon_opt_set_context_reg(sctx
, R_028818_PA_CL_VTE_CNTL
, SI_TRACKED_PA_CL_VTE_CNTL
,
1301 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
);
1303 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
1304 radeon_opt_set_context_reg(sctx
, R_028B6C_VGT_TF_PARAM
, SI_TRACKED_VGT_TF_PARAM
,
1305 shader
->vgt_tf_param
);
1307 if (shader
->vgt_vertex_reuse_block_cntl
)
1308 radeon_opt_set_context_reg(sctx
, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL
,
1309 SI_TRACKED_VGT_VERTEX_REUSE_BLOCK_CNTL
,
1310 shader
->vgt_vertex_reuse_block_cntl
);
1312 /* Required programming for tessellation. (legacy pipeline only) */
1313 if (sctx
->chip_class
>= GFX10
&& shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
1314 radeon_opt_set_context_reg(sctx
, R_028A44_VGT_GS_ONCHIP_CNTL
,
1315 SI_TRACKED_VGT_GS_ONCHIP_CNTL
,
1316 S_028A44_ES_VERTS_PER_SUBGRP(250) |
1317 S_028A44_GS_PRIMS_PER_SUBGRP(126) |
1318 S_028A44_GS_INST_PRIMS_IN_SUBGRP(126));
1321 if (sctx
->chip_class
>= GFX10
) {
1322 radeon_opt_set_context_reg_rmw(sctx
, R_02881C_PA_CL_VS_OUT_CNTL
,
1323 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS
, shader
->pa_cl_vs_out_cntl
,
1324 SI_TRACKED_PA_CL_VS_OUT_CNTL__VS_MASK
);
1327 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
1328 sctx
->context_roll
= true;
1330 /* GE_PC_ALLOC is not a context register, so it doesn't cause a context roll. */
1331 if (sctx
->chip_class
>= GFX10
)
1332 gfx10_emit_ge_pc_alloc(sctx
, shader
->ctx_reg
.vs
.ge_pc_alloc
);
1336 * Compute the state for \p shader, which will run as a vertex shader on the
1339 * If \p gs is non-NULL, it points to the geometry shader for which this shader
1340 * is the copy shader.
1342 static void si_shader_vs(struct si_screen
*sscreen
, struct si_shader
*shader
,
1343 struct si_shader_selector
*gs
)
1345 const struct si_shader_info
*info
= &shader
->selector
->info
;
1346 struct si_pm4_state
*pm4
;
1347 unsigned num_user_sgprs
, vgpr_comp_cnt
;
1349 unsigned nparams
, oc_lds_en
;
1350 unsigned window_space
= info
->properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
1351 bool enable_prim_id
= shader
->key
.mono
.u
.vs_export_prim_id
|| info
->uses_primid
;
1353 pm4
= si_get_shader_pm4_state(shader
);
1357 pm4
->atom
.emit
= si_emit_shader_vs
;
1359 /* We always write VGT_GS_MODE in the VS state, because every switch
1360 * between different shader pipelines involving a different GS or no
1361 * GS at all involves a switch of the VS (different GS use different
1362 * copy shaders). On the other hand, when the API switches from a GS to
1363 * no GS and then back to the same GS used originally, the GS state is
1367 unsigned mode
= V_028A40_GS_OFF
;
1369 /* PrimID needs GS scenario A. */
1371 mode
= V_028A40_GS_SCENARIO_A
;
1373 shader
->ctx_reg
.vs
.vgt_gs_mode
= S_028A40_MODE(mode
);
1374 shader
->ctx_reg
.vs
.vgt_primitiveid_en
= enable_prim_id
;
1376 shader
->ctx_reg
.vs
.vgt_gs_mode
=
1377 ac_vgt_gs_mode(gs
->gs_max_out_vertices
, sscreen
->info
.chip_class
);
1378 shader
->ctx_reg
.vs
.vgt_primitiveid_en
= 0;
1381 if (sscreen
->info
.chip_class
<= GFX8
) {
1382 /* Reuse needs to be set off if we write oViewport. */
1383 shader
->ctx_reg
.vs
.vgt_reuse_off
= S_028AB4_REUSE_OFF(info
->writes_viewport_index
);
1386 va
= shader
->bo
->gpu_address
;
1389 vgpr_comp_cnt
= 0; /* only VertexID is needed for GS-COPY. */
1390 num_user_sgprs
= SI_GSCOPY_NUM_USER_SGPR
;
1391 } else if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
1392 vgpr_comp_cnt
= si_get_vs_vgpr_comp_cnt(sscreen
, shader
, enable_prim_id
);
1394 if (info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]) {
1395 num_user_sgprs
= SI_SGPR_VS_BLIT_DATA
+ info
->properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
1397 num_user_sgprs
= si_get_num_vs_user_sgprs(shader
, SI_VS_NUM_USER_SGPR
);
1399 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
1400 vgpr_comp_cnt
= enable_prim_id
? 3 : 2;
1401 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
1403 unreachable("invalid shader selector type");
1405 /* VS is required to export at least one param. */
1406 nparams
= MAX2(shader
->info
.nr_param_exports
, 1);
1407 shader
->ctx_reg
.vs
.spi_vs_out_config
= S_0286C4_VS_EXPORT_COUNT(nparams
- 1);
1409 if (sscreen
->info
.chip_class
>= GFX10
) {
1410 shader
->ctx_reg
.vs
.spi_vs_out_config
|=
1411 S_0286C4_NO_PC_EXPORT(shader
->info
.nr_param_exports
== 0);
1414 shader
->ctx_reg
.vs
.spi_shader_pos_format
=
1415 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
1416 S_02870C_POS1_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 1 ? V_02870C_SPI_SHADER_4COMP
1417 : V_02870C_SPI_SHADER_NONE
) |
1418 S_02870C_POS2_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 2 ? V_02870C_SPI_SHADER_4COMP
1419 : V_02870C_SPI_SHADER_NONE
) |
1420 S_02870C_POS3_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 3 ? V_02870C_SPI_SHADER_4COMP
1421 : V_02870C_SPI_SHADER_NONE
);
1422 shader
->ctx_reg
.vs
.ge_pc_alloc
= S_030980_OVERSUB_EN(sscreen
->info
.use_late_alloc
) |
1423 S_030980_NUM_PC_LINES(sscreen
->info
.pc_lines
/ 4 - 1);
1424 shader
->pa_cl_vs_out_cntl
= si_get_vs_out_cntl(shader
->selector
, false);
1426 oc_lds_en
= shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
? 1 : 0;
1428 si_pm4_set_reg(pm4
, R_00B120_SPI_SHADER_PGM_LO_VS
, va
>> 8);
1429 si_pm4_set_reg(pm4
, R_00B124_SPI_SHADER_PGM_HI_VS
, S_00B124_MEM_BASE(va
>> 40));
1432 S_00B128_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ge_wave_size
== 32 ? 8 : 4)) |
1433 S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt
) | S_00B128_DX10_CLAMP(1) |
1434 S_00B128_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
1435 S_00B128_FLOAT_MODE(shader
->config
.float_mode
);
1436 uint32_t rsrc2
= S_00B12C_USER_SGPR(num_user_sgprs
) | S_00B12C_OC_LDS_EN(oc_lds_en
) |
1437 S_00B12C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
1439 if (sscreen
->info
.chip_class
>= GFX10
)
1440 rsrc2
|= S_00B12C_USER_SGPR_MSB_GFX10(num_user_sgprs
>> 5);
1441 else if (sscreen
->info
.chip_class
== GFX9
)
1442 rsrc2
|= S_00B12C_USER_SGPR_MSB_GFX9(num_user_sgprs
>> 5);
1444 if (sscreen
->info
.chip_class
<= GFX9
)
1445 rsrc1
|= S_00B128_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
1447 if (!sscreen
->use_ngg_streamout
) {
1448 rsrc2
|= S_00B12C_SO_BASE0_EN(!!shader
->selector
->so
.stride
[0]) |
1449 S_00B12C_SO_BASE1_EN(!!shader
->selector
->so
.stride
[1]) |
1450 S_00B12C_SO_BASE2_EN(!!shader
->selector
->so
.stride
[2]) |
1451 S_00B12C_SO_BASE3_EN(!!shader
->selector
->so
.stride
[3]) |
1452 S_00B12C_SO_EN(!!shader
->selector
->so
.num_outputs
);
1455 si_pm4_set_reg(pm4
, R_00B128_SPI_SHADER_PGM_RSRC1_VS
, rsrc1
);
1456 si_pm4_set_reg(pm4
, R_00B12C_SPI_SHADER_PGM_RSRC2_VS
, rsrc2
);
1459 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
= S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1);
1461 shader
->ctx_reg
.vs
.pa_cl_vte_cntl
=
1462 S_028818_VTX_W0_FMT(1) | S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
1463 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
1464 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1);
1466 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
1467 si_set_tesseval_regs(sscreen
, shader
->selector
, pm4
);
1469 polaris_set_vgt_vertex_reuse(sscreen
, shader
->selector
, shader
, pm4
);
1472 static unsigned si_get_ps_num_interp(struct si_shader
*ps
)
1474 struct si_shader_info
*info
= &ps
->selector
->info
;
1475 unsigned num_colors
= !!(info
->colors_read
& 0x0f) + !!(info
->colors_read
& 0xf0);
1476 unsigned num_interp
=
1477 ps
->selector
->info
.num_inputs
+ (ps
->key
.part
.ps
.prolog
.color_two_side
? num_colors
: 0);
1479 assert(num_interp
<= 32);
1480 return MIN2(num_interp
, 32);
1483 static unsigned si_get_spi_shader_col_format(struct si_shader
*shader
)
1485 unsigned spi_shader_col_format
= shader
->key
.part
.ps
.epilog
.spi_shader_col_format
;
1486 unsigned value
= 0, num_mrts
= 0;
1487 unsigned i
, num_targets
= (util_last_bit(spi_shader_col_format
) + 3) / 4;
1489 /* Remove holes in spi_shader_col_format. */
1490 for (i
= 0; i
< num_targets
; i
++) {
1491 unsigned spi_format
= (spi_shader_col_format
>> (i
* 4)) & 0xf;
1494 value
|= spi_format
<< (num_mrts
* 4);
1502 static void si_emit_shader_ps(struct si_context
*sctx
)
1504 struct si_shader
*shader
= sctx
->queued
.named
.ps
->shader
;
1505 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
1510 /* R_0286CC_SPI_PS_INPUT_ENA, R_0286D0_SPI_PS_INPUT_ADDR*/
1511 radeon_opt_set_context_reg2(sctx
, R_0286CC_SPI_PS_INPUT_ENA
, SI_TRACKED_SPI_PS_INPUT_ENA
,
1512 shader
->ctx_reg
.ps
.spi_ps_input_ena
,
1513 shader
->ctx_reg
.ps
.spi_ps_input_addr
);
1515 radeon_opt_set_context_reg(sctx
, R_0286E0_SPI_BARYC_CNTL
, SI_TRACKED_SPI_BARYC_CNTL
,
1516 shader
->ctx_reg
.ps
.spi_baryc_cntl
);
1517 radeon_opt_set_context_reg(sctx
, R_0286D8_SPI_PS_IN_CONTROL
, SI_TRACKED_SPI_PS_IN_CONTROL
,
1518 shader
->ctx_reg
.ps
.spi_ps_in_control
);
1520 /* R_028710_SPI_SHADER_Z_FORMAT, R_028714_SPI_SHADER_COL_FORMAT */
1521 radeon_opt_set_context_reg2(sctx
, R_028710_SPI_SHADER_Z_FORMAT
, SI_TRACKED_SPI_SHADER_Z_FORMAT
,
1522 shader
->ctx_reg
.ps
.spi_shader_z_format
,
1523 shader
->ctx_reg
.ps
.spi_shader_col_format
);
1525 radeon_opt_set_context_reg(sctx
, R_02823C_CB_SHADER_MASK
, SI_TRACKED_CB_SHADER_MASK
,
1526 shader
->ctx_reg
.ps
.cb_shader_mask
);
1528 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
1529 sctx
->context_roll
= true;
1532 static void si_shader_ps(struct si_screen
*sscreen
, struct si_shader
*shader
)
1534 struct si_shader_info
*info
= &shader
->selector
->info
;
1535 struct si_pm4_state
*pm4
;
1536 unsigned spi_ps_in_control
, spi_shader_col_format
, cb_shader_mask
;
1537 unsigned spi_baryc_cntl
= S_0286E0_FRONT_FACE_ALL_BITS(1);
1539 unsigned input_ena
= shader
->config
.spi_ps_input_ena
;
1541 /* we need to enable at least one of them, otherwise we hang the GPU */
1542 assert(G_0286CC_PERSP_SAMPLE_ENA(input_ena
) || G_0286CC_PERSP_CENTER_ENA(input_ena
) ||
1543 G_0286CC_PERSP_CENTROID_ENA(input_ena
) || G_0286CC_PERSP_PULL_MODEL_ENA(input_ena
) ||
1544 G_0286CC_LINEAR_SAMPLE_ENA(input_ena
) || G_0286CC_LINEAR_CENTER_ENA(input_ena
) ||
1545 G_0286CC_LINEAR_CENTROID_ENA(input_ena
) || G_0286CC_LINE_STIPPLE_TEX_ENA(input_ena
));
1546 /* POS_W_FLOAT_ENA requires one of the perspective weights. */
1547 assert(!G_0286CC_POS_W_FLOAT_ENA(input_ena
) || G_0286CC_PERSP_SAMPLE_ENA(input_ena
) ||
1548 G_0286CC_PERSP_CENTER_ENA(input_ena
) || G_0286CC_PERSP_CENTROID_ENA(input_ena
) ||
1549 G_0286CC_PERSP_PULL_MODEL_ENA(input_ena
));
1551 /* Validate interpolation optimization flags (read as implications). */
1552 assert(!shader
->key
.part
.ps
.prolog
.bc_optimize_for_persp
||
1553 (G_0286CC_PERSP_CENTER_ENA(input_ena
) && G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1554 assert(!shader
->key
.part
.ps
.prolog
.bc_optimize_for_linear
||
1555 (G_0286CC_LINEAR_CENTER_ENA(input_ena
) && G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1556 assert(!shader
->key
.part
.ps
.prolog
.force_persp_center_interp
||
1557 (!G_0286CC_PERSP_SAMPLE_ENA(input_ena
) && !G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1558 assert(!shader
->key
.part
.ps
.prolog
.force_linear_center_interp
||
1559 (!G_0286CC_LINEAR_SAMPLE_ENA(input_ena
) && !G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1560 assert(!shader
->key
.part
.ps
.prolog
.force_persp_sample_interp
||
1561 (!G_0286CC_PERSP_CENTER_ENA(input_ena
) && !G_0286CC_PERSP_CENTROID_ENA(input_ena
)));
1562 assert(!shader
->key
.part
.ps
.prolog
.force_linear_sample_interp
||
1563 (!G_0286CC_LINEAR_CENTER_ENA(input_ena
) && !G_0286CC_LINEAR_CENTROID_ENA(input_ena
)));
1565 /* Validate cases when the optimizations are off (read as implications). */
1566 assert(shader
->key
.part
.ps
.prolog
.bc_optimize_for_persp
||
1567 !G_0286CC_PERSP_CENTER_ENA(input_ena
) || !G_0286CC_PERSP_CENTROID_ENA(input_ena
));
1568 assert(shader
->key
.part
.ps
.prolog
.bc_optimize_for_linear
||
1569 !G_0286CC_LINEAR_CENTER_ENA(input_ena
) || !G_0286CC_LINEAR_CENTROID_ENA(input_ena
));
1571 pm4
= si_get_shader_pm4_state(shader
);
1575 pm4
->atom
.emit
= si_emit_shader_ps
;
1577 /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
1579 * 0 -> Position = pixel center
1580 * 1 -> Position = pixel centroid
1581 * 2 -> Position = at sample position
1583 * From GLSL 4.5 specification, section 7.1:
1584 * "The variable gl_FragCoord is available as an input variable from
1585 * within fragment shaders and it holds the window relative coordinates
1586 * (x, y, z, 1/w) values for the fragment. If multi-sampling, this
1587 * value can be for any location within the pixel, or one of the
1588 * fragment samples. The use of centroid does not further restrict
1589 * this value to be inside the current primitive."
1591 * Meaning that centroid has no effect and we can return anything within
1592 * the pixel. Thus, return the value at sample position, because that's
1593 * the most accurate one shaders can get.
1595 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_LOCATION(2);
1597 if (info
->properties
[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER
] == TGSI_FS_COORD_PIXEL_CENTER_INTEGER
)
1598 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_ULC(1);
1600 spi_shader_col_format
= si_get_spi_shader_col_format(shader
);
1601 cb_shader_mask
= ac_get_cb_shader_mask(shader
->key
.part
.ps
.epilog
.spi_shader_col_format
);
1603 /* Ensure that some export memory is always allocated, for two reasons:
1605 * 1) Correctness: The hardware ignores the EXEC mask if no export
1606 * memory is allocated, so KILL and alpha test do not work correctly
1608 * 2) Performance: Every shader needs at least a NULL export, even when
1609 * it writes no color/depth output. The NULL export instruction
1610 * stalls without this setting.
1612 * Don't add this to CB_SHADER_MASK.
1614 * GFX10 supports pixel shaders without exports by setting both
1615 * the color and Z formats to SPI_SHADER_ZERO. The hw will skip export
1616 * instructions if any are present.
1618 if ((sscreen
->info
.chip_class
<= GFX9
|| info
->uses_kill
||
1619 shader
->key
.part
.ps
.epilog
.alpha_func
!= PIPE_FUNC_ALWAYS
) &&
1620 !spi_shader_col_format
&& !info
->writes_z
&& !info
->writes_stencil
&&
1621 !info
->writes_samplemask
)
1622 spi_shader_col_format
= V_028714_SPI_SHADER_32_R
;
1624 shader
->ctx_reg
.ps
.spi_ps_input_ena
= input_ena
;
1625 shader
->ctx_reg
.ps
.spi_ps_input_addr
= shader
->config
.spi_ps_input_addr
;
1627 /* Set interpolation controls. */
1628 spi_ps_in_control
= S_0286D8_NUM_INTERP(si_get_ps_num_interp(shader
)) |
1629 S_0286D8_PS_W32_EN(sscreen
->ps_wave_size
== 32);
1631 shader
->ctx_reg
.ps
.spi_baryc_cntl
= spi_baryc_cntl
;
1632 shader
->ctx_reg
.ps
.spi_ps_in_control
= spi_ps_in_control
;
1633 shader
->ctx_reg
.ps
.spi_shader_z_format
=
1634 ac_get_spi_shader_z_format(info
->writes_z
, info
->writes_stencil
, info
->writes_samplemask
);
1635 shader
->ctx_reg
.ps
.spi_shader_col_format
= spi_shader_col_format
;
1636 shader
->ctx_reg
.ps
.cb_shader_mask
= cb_shader_mask
;
1638 va
= shader
->bo
->gpu_address
;
1639 si_pm4_set_reg(pm4
, R_00B020_SPI_SHADER_PGM_LO_PS
, va
>> 8);
1640 si_pm4_set_reg(pm4
, R_00B024_SPI_SHADER_PGM_HI_PS
, S_00B024_MEM_BASE(va
>> 40));
1643 S_00B028_VGPRS((shader
->config
.num_vgprs
- 1) / (sscreen
->ps_wave_size
== 32 ? 8 : 4)) |
1644 S_00B028_DX10_CLAMP(1) | S_00B028_MEM_ORDERED(sscreen
->info
.chip_class
>= GFX10
) |
1645 S_00B028_FLOAT_MODE(shader
->config
.float_mode
);
1647 if (sscreen
->info
.chip_class
< GFX10
) {
1648 rsrc1
|= S_00B028_SGPRS((shader
->config
.num_sgprs
- 1) / 8);
1651 si_pm4_set_reg(pm4
, R_00B028_SPI_SHADER_PGM_RSRC1_PS
, rsrc1
);
1652 si_pm4_set_reg(pm4
, R_00B02C_SPI_SHADER_PGM_RSRC2_PS
,
1653 S_00B02C_EXTRA_LDS_SIZE(shader
->config
.lds_size
) |
1654 S_00B02C_USER_SGPR(SI_PS_NUM_USER_SGPR
) |
1655 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
1658 static void si_shader_init_pm4_state(struct si_screen
*sscreen
, struct si_shader
*shader
)
1660 switch (shader
->selector
->type
) {
1661 case PIPE_SHADER_VERTEX
:
1662 if (shader
->key
.as_ls
)
1663 si_shader_ls(sscreen
, shader
);
1664 else if (shader
->key
.as_es
)
1665 si_shader_es(sscreen
, shader
);
1666 else if (shader
->key
.as_ngg
)
1667 gfx10_shader_ngg(sscreen
, shader
);
1669 si_shader_vs(sscreen
, shader
, NULL
);
1671 case PIPE_SHADER_TESS_CTRL
:
1672 si_shader_hs(sscreen
, shader
);
1674 case PIPE_SHADER_TESS_EVAL
:
1675 if (shader
->key
.as_es
)
1676 si_shader_es(sscreen
, shader
);
1677 else if (shader
->key
.as_ngg
)
1678 gfx10_shader_ngg(sscreen
, shader
);
1680 si_shader_vs(sscreen
, shader
, NULL
);
1682 case PIPE_SHADER_GEOMETRY
:
1683 if (shader
->key
.as_ngg
)
1684 gfx10_shader_ngg(sscreen
, shader
);
1686 si_shader_gs(sscreen
, shader
);
1688 case PIPE_SHADER_FRAGMENT
:
1689 si_shader_ps(sscreen
, shader
);
1696 static unsigned si_get_alpha_test_func(struct si_context
*sctx
)
1698 /* Alpha-test should be disabled if colorbuffer 0 is integer. */
1699 return sctx
->queued
.named
.dsa
->alpha_func
;
1702 void si_shader_selector_key_vs(struct si_context
*sctx
, struct si_shader_selector
*vs
,
1703 struct si_shader_key
*key
, struct si_vs_prolog_bits
*prolog_key
)
1705 if (!sctx
->vertex_elements
|| vs
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
])
1708 struct si_vertex_elements
*elts
= sctx
->vertex_elements
;
1710 prolog_key
->instance_divisor_is_one
= elts
->instance_divisor_is_one
;
1711 prolog_key
->instance_divisor_is_fetched
= elts
->instance_divisor_is_fetched
;
1712 prolog_key
->unpack_instance_id_from_vertex_id
= sctx
->prim_discard_cs_instancing
;
1714 /* Prefer a monolithic shader to allow scheduling divisions around
1716 if (prolog_key
->instance_divisor_is_fetched
)
1717 key
->opt
.prefer_mono
= 1;
1719 unsigned count
= MIN2(vs
->info
.num_inputs
, elts
->count
);
1720 unsigned count_mask
= (1 << count
) - 1;
1721 unsigned fix
= elts
->fix_fetch_always
& count_mask
;
1722 unsigned opencode
= elts
->fix_fetch_opencode
& count_mask
;
1724 if (sctx
->vertex_buffer_unaligned
& elts
->vb_alignment_check_mask
) {
1725 uint32_t mask
= elts
->fix_fetch_unaligned
& count_mask
;
1727 unsigned i
= u_bit_scan(&mask
);
1728 unsigned log_hw_load_size
= 1 + ((elts
->hw_load_is_dword
>> i
) & 1);
1729 unsigned vbidx
= elts
->vertex_buffer_index
[i
];
1730 struct pipe_vertex_buffer
*vb
= &sctx
->vertex_buffer
[vbidx
];
1731 unsigned align_mask
= (1 << log_hw_load_size
) - 1;
1732 if (vb
->buffer_offset
& align_mask
|| vb
->stride
& align_mask
) {
1740 unsigned i
= u_bit_scan(&fix
);
1741 key
->mono
.vs_fix_fetch
[i
].bits
= elts
->fix_fetch
[i
];
1743 key
->mono
.vs_fetch_opencode
= opencode
;
1746 static void si_shader_selector_key_hw_vs(struct si_context
*sctx
, struct si_shader_selector
*vs
,
1747 struct si_shader_key
*key
)
1749 struct si_shader_selector
*ps
= sctx
->ps_shader
.cso
;
1751 key
->opt
.clip_disable
= sctx
->queued
.named
.rasterizer
->clip_plane_enable
== 0 &&
1752 (vs
->info
.clipdist_writemask
|| vs
->info
.writes_clipvertex
) &&
1753 !vs
->info
.culldist_writemask
;
1755 /* Find out if PS is disabled. */
1756 bool ps_disabled
= true;
1758 bool ps_modifies_zs
= ps
->info
.uses_kill
|| ps
->info
.writes_z
|| ps
->info
.writes_stencil
||
1759 ps
->info
.writes_samplemask
||
1760 sctx
->queued
.named
.blend
->alpha_to_coverage
||
1761 si_get_alpha_test_func(sctx
) != PIPE_FUNC_ALWAYS
;
1762 unsigned ps_colormask
= si_get_total_colormask(sctx
);
1764 ps_disabled
= sctx
->queued
.named
.rasterizer
->rasterizer_discard
||
1765 (!ps_colormask
&& !ps_modifies_zs
&& !ps
->info
.writes_memory
);
1768 /* Find out which VS outputs aren't used by the PS. */
1769 uint64_t outputs_written
= vs
->outputs_written_before_ps
;
1770 uint64_t inputs_read
= 0;
1772 /* Ignore outputs that are not passed from VS to PS. */
1773 outputs_written
&= ~((1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_POSITION
, 0, true)) |
1774 (1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_PSIZE
, 0, true)) |
1775 (1ull << si_shader_io_get_unique_index(TGSI_SEMANTIC_CLIPVERTEX
, 0, true)));
1778 inputs_read
= ps
->inputs_read
;
1781 uint64_t linked
= outputs_written
& inputs_read
;
1783 key
->opt
.kill_outputs
= ~linked
& outputs_written
;
1784 key
->opt
.ngg_culling
= sctx
->ngg_culling
;
1787 /* Compute the key for the hw shader variant */
1788 static inline void si_shader_selector_key(struct pipe_context
*ctx
, struct si_shader_selector
*sel
,
1789 union si_vgt_stages_key stages_key
,
1790 struct si_shader_key
*key
)
1792 struct si_context
*sctx
= (struct si_context
*)ctx
;
1794 memset(key
, 0, sizeof(*key
));
1796 switch (sel
->type
) {
1797 case PIPE_SHADER_VERTEX
:
1798 si_shader_selector_key_vs(sctx
, sel
, key
, &key
->part
.vs
.prolog
);
1800 if (sctx
->tes_shader
.cso
)
1802 else if (sctx
->gs_shader
.cso
) {
1804 key
->as_ngg
= stages_key
.u
.ngg
;
1806 key
->as_ngg
= stages_key
.u
.ngg
;
1807 si_shader_selector_key_hw_vs(sctx
, sel
, key
);
1809 if (sctx
->ps_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
)
1810 key
->mono
.u
.vs_export_prim_id
= 1;
1813 case PIPE_SHADER_TESS_CTRL
:
1814 if (sctx
->chip_class
>= GFX9
) {
1815 si_shader_selector_key_vs(sctx
, sctx
->vs_shader
.cso
, key
, &key
->part
.tcs
.ls_prolog
);
1816 key
->part
.tcs
.ls
= sctx
->vs_shader
.cso
;
1818 /* When the LS VGPR fix is needed, monolithic shaders
1820 * - avoid initializing EXEC in both the LS prolog
1821 * and the LS main part when !vs_needs_prolog
1822 * - remove the fixup for unused input VGPRs
1824 key
->part
.tcs
.ls_prolog
.ls_vgpr_fix
= sctx
->ls_vgpr_fix
;
1826 /* The LS output / HS input layout can be communicated
1827 * directly instead of via user SGPRs for merged LS-HS.
1828 * The LS VGPR fix prefers this too.
1830 key
->opt
.prefer_mono
= 1;
1833 key
->part
.tcs
.epilog
.prim_mode
=
1834 sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
1835 key
->part
.tcs
.epilog
.invoc0_tess_factors_are_def
=
1836 sel
->info
.tessfactors_are_def_in_all_invocs
;
1837 key
->part
.tcs
.epilog
.tes_reads_tess_factors
= sctx
->tes_shader
.cso
->info
.reads_tess_factors
;
1839 if (sel
== sctx
->fixed_func_tcs_shader
.cso
)
1840 key
->mono
.u
.ff_tcs_inputs_to_copy
= sctx
->vs_shader
.cso
->outputs_written
;
1842 case PIPE_SHADER_TESS_EVAL
:
1843 key
->as_ngg
= stages_key
.u
.ngg
;
1845 if (sctx
->gs_shader
.cso
)
1848 si_shader_selector_key_hw_vs(sctx
, sel
, key
);
1850 if (sctx
->ps_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
)
1851 key
->mono
.u
.vs_export_prim_id
= 1;
1854 case PIPE_SHADER_GEOMETRY
:
1855 if (sctx
->chip_class
>= GFX9
) {
1856 if (sctx
->tes_shader
.cso
) {
1857 key
->part
.gs
.es
= sctx
->tes_shader
.cso
;
1859 si_shader_selector_key_vs(sctx
, sctx
->vs_shader
.cso
, key
, &key
->part
.gs
.vs_prolog
);
1860 key
->part
.gs
.es
= sctx
->vs_shader
.cso
;
1861 key
->part
.gs
.prolog
.gfx9_prev_is_vs
= 1;
1864 key
->as_ngg
= stages_key
.u
.ngg
;
1866 /* Merged ES-GS can have unbalanced wave usage.
1868 * ES threads are per-vertex, while GS threads are
1869 * per-primitive. So without any amplification, there
1870 * are fewer GS threads than ES threads, which can result
1871 * in empty (no-op) GS waves. With too much amplification,
1872 * there are more GS threads than ES threads, which
1873 * can result in empty (no-op) ES waves.
1875 * Non-monolithic shaders are implemented by setting EXEC
1876 * at the beginning of shader parts, and don't jump to
1877 * the end if EXEC is 0.
1879 * Monolithic shaders use conditional blocks, so they can
1880 * jump and skip empty waves of ES or GS. So set this to
1881 * always use optimized variants, which are monolithic.
1883 key
->opt
.prefer_mono
= 1;
1885 key
->part
.gs
.prolog
.tri_strip_adj_fix
= sctx
->gs_tri_strip_adj_fix
;
1887 case PIPE_SHADER_FRAGMENT
: {
1888 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1889 struct si_state_blend
*blend
= sctx
->queued
.named
.blend
;
1891 if (sel
->info
.properties
[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
] &&
1892 sel
->info
.colors_written
== 0x1)
1893 key
->part
.ps
.epilog
.last_cbuf
= MAX2(sctx
->framebuffer
.state
.nr_cbufs
, 1) - 1;
1895 /* Select the shader color format based on whether
1896 * blending or alpha are needed.
1898 key
->part
.ps
.epilog
.spi_shader_col_format
=
1899 (blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
1900 sctx
->framebuffer
.spi_shader_col_format_blend_alpha
) |
1901 (blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
1902 sctx
->framebuffer
.spi_shader_col_format_blend
) |
1903 (~blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
1904 sctx
->framebuffer
.spi_shader_col_format_alpha
) |
1905 (~blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
1906 sctx
->framebuffer
.spi_shader_col_format
);
1907 key
->part
.ps
.epilog
.spi_shader_col_format
&= blend
->cb_target_enabled_4bit
;
1909 /* The output for dual source blending should have
1910 * the same format as the first output.
1912 if (blend
->dual_src_blend
) {
1913 key
->part
.ps
.epilog
.spi_shader_col_format
|=
1914 (key
->part
.ps
.epilog
.spi_shader_col_format
& 0xf) << 4;
1917 /* If alpha-to-coverage is enabled, we have to export alpha
1918 * even if there is no color buffer.
1920 if (!(key
->part
.ps
.epilog
.spi_shader_col_format
& 0xf) && blend
->alpha_to_coverage
)
1921 key
->part
.ps
.epilog
.spi_shader_col_format
|= V_028710_SPI_SHADER_32_AR
;
1923 /* On GFX6 and GFX7 except Hawaii, the CB doesn't clamp outputs
1924 * to the range supported by the type if a channel has less
1925 * than 16 bits and the export format is 16_ABGR.
1927 if (sctx
->chip_class
<= GFX7
&& sctx
->family
!= CHIP_HAWAII
) {
1928 key
->part
.ps
.epilog
.color_is_int8
= sctx
->framebuffer
.color_is_int8
;
1929 key
->part
.ps
.epilog
.color_is_int10
= sctx
->framebuffer
.color_is_int10
;
1932 /* Disable unwritten outputs (if WRITE_ALL_CBUFS isn't enabled). */
1933 if (!key
->part
.ps
.epilog
.last_cbuf
) {
1934 key
->part
.ps
.epilog
.spi_shader_col_format
&= sel
->colors_written_4bit
;
1935 key
->part
.ps
.epilog
.color_is_int8
&= sel
->info
.colors_written
;
1936 key
->part
.ps
.epilog
.color_is_int10
&= sel
->info
.colors_written
;
1939 bool is_poly
= !util_prim_is_points_or_lines(sctx
->current_rast_prim
);
1940 bool is_line
= util_prim_is_lines(sctx
->current_rast_prim
);
1942 key
->part
.ps
.prolog
.color_two_side
= rs
->two_side
&& sel
->info
.colors_read
;
1943 key
->part
.ps
.prolog
.flatshade_colors
= rs
->flatshade
&& sel
->info
.colors_read
;
1945 key
->part
.ps
.epilog
.alpha_to_one
= blend
->alpha_to_one
&& rs
->multisample_enable
;
1947 key
->part
.ps
.prolog
.poly_stipple
= rs
->poly_stipple_enable
&& is_poly
;
1948 key
->part
.ps
.epilog
.poly_line_smoothing
=
1949 ((is_poly
&& rs
->poly_smooth
) || (is_line
&& rs
->line_smooth
)) &&
1950 sctx
->framebuffer
.nr_samples
<= 1;
1951 key
->part
.ps
.epilog
.clamp_color
= rs
->clamp_fragment_color
;
1953 if (sctx
->ps_iter_samples
> 1 && sel
->info
.reads_samplemask
) {
1954 key
->part
.ps
.prolog
.samplemask_log_ps_iter
= util_logbase2(sctx
->ps_iter_samples
);
1957 if (rs
->force_persample_interp
&& rs
->multisample_enable
&&
1958 sctx
->framebuffer
.nr_samples
> 1 && sctx
->ps_iter_samples
> 1) {
1959 key
->part
.ps
.prolog
.force_persp_sample_interp
=
1960 sel
->info
.uses_persp_center
|| sel
->info
.uses_persp_centroid
;
1962 key
->part
.ps
.prolog
.force_linear_sample_interp
=
1963 sel
->info
.uses_linear_center
|| sel
->info
.uses_linear_centroid
;
1964 } else if (rs
->multisample_enable
&& sctx
->framebuffer
.nr_samples
> 1) {
1965 key
->part
.ps
.prolog
.bc_optimize_for_persp
=
1966 sel
->info
.uses_persp_center
&& sel
->info
.uses_persp_centroid
;
1967 key
->part
.ps
.prolog
.bc_optimize_for_linear
=
1968 sel
->info
.uses_linear_center
&& sel
->info
.uses_linear_centroid
;
1970 /* Make sure SPI doesn't compute more than 1 pair
1971 * of (i,j), which is the optimization here. */
1972 key
->part
.ps
.prolog
.force_persp_center_interp
= sel
->info
.uses_persp_center
+
1973 sel
->info
.uses_persp_centroid
+
1974 sel
->info
.uses_persp_sample
>
1977 key
->part
.ps
.prolog
.force_linear_center_interp
= sel
->info
.uses_linear_center
+
1978 sel
->info
.uses_linear_centroid
+
1979 sel
->info
.uses_linear_sample
>
1982 if (sel
->info
.uses_persp_opcode_interp_sample
||
1983 sel
->info
.uses_linear_opcode_interp_sample
)
1984 key
->mono
.u
.ps
.interpolate_at_sample_force_center
= 1;
1987 key
->part
.ps
.epilog
.alpha_func
= si_get_alpha_test_func(sctx
);
1989 /* ps_uses_fbfetch is true only if the color buffer is bound. */
1990 if (sctx
->ps_uses_fbfetch
&& !sctx
->blitter
->running
) {
1991 struct pipe_surface
*cb0
= sctx
->framebuffer
.state
.cbufs
[0];
1992 struct pipe_resource
*tex
= cb0
->texture
;
1994 /* 1D textures are allocated and used as 2D on GFX9. */
1995 key
->mono
.u
.ps
.fbfetch_msaa
= sctx
->framebuffer
.nr_samples
> 1;
1996 key
->mono
.u
.ps
.fbfetch_is_1D
=
1997 sctx
->chip_class
!= GFX9
&&
1998 (tex
->target
== PIPE_TEXTURE_1D
|| tex
->target
== PIPE_TEXTURE_1D_ARRAY
);
1999 key
->mono
.u
.ps
.fbfetch_layered
=
2000 tex
->target
== PIPE_TEXTURE_1D_ARRAY
|| tex
->target
== PIPE_TEXTURE_2D_ARRAY
||
2001 tex
->target
== PIPE_TEXTURE_CUBE
|| tex
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
2002 tex
->target
== PIPE_TEXTURE_3D
;
2010 if (unlikely(sctx
->screen
->debug_flags
& DBG(NO_OPT_VARIANT
)))
2011 memset(&key
->opt
, 0, sizeof(key
->opt
));
2014 static void si_build_shader_variant(struct si_shader
*shader
, int thread_index
, bool low_priority
)
2016 struct si_shader_selector
*sel
= shader
->selector
;
2017 struct si_screen
*sscreen
= sel
->screen
;
2018 struct ac_llvm_compiler
*compiler
;
2019 struct pipe_debug_callback
*debug
= &shader
->compiler_ctx_state
.debug
;
2021 if (thread_index
>= 0) {
2023 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler_lowp
));
2024 compiler
= &sscreen
->compiler_lowp
[thread_index
];
2026 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler
));
2027 compiler
= &sscreen
->compiler
[thread_index
];
2032 assert(!low_priority
);
2033 compiler
= shader
->compiler_ctx_state
.compiler
;
2036 if (!compiler
->passes
)
2037 si_init_compiler(sscreen
, compiler
);
2039 if (unlikely(!si_create_shader_variant(sscreen
, compiler
, shader
, debug
))) {
2040 PRINT_ERR("Failed to build shader variant (type=%u)\n", sel
->type
);
2041 shader
->compilation_failed
= true;
2045 if (shader
->compiler_ctx_state
.is_debug_context
) {
2046 FILE *f
= open_memstream(&shader
->shader_log
, &shader
->shader_log_size
);
2048 si_shader_dump(sscreen
, shader
, NULL
, f
, false);
2053 si_shader_init_pm4_state(sscreen
, shader
);
2056 static void si_build_shader_variant_low_priority(void *job
, int thread_index
)
2058 struct si_shader
*shader
= (struct si_shader
*)job
;
2060 assert(thread_index
>= 0);
2062 si_build_shader_variant(shader
, thread_index
, true);
2065 static const struct si_shader_key zeroed
;
2067 static bool si_check_missing_main_part(struct si_screen
*sscreen
, struct si_shader_selector
*sel
,
2068 struct si_compiler_ctx_state
*compiler_state
,
2069 struct si_shader_key
*key
)
2071 struct si_shader
**mainp
= si_get_main_shader_part(sel
, key
);
2074 struct si_shader
*main_part
= CALLOC_STRUCT(si_shader
);
2079 /* We can leave the fence as permanently signaled because the
2080 * main part becomes visible globally only after it has been
2082 util_queue_fence_init(&main_part
->ready
);
2084 main_part
->selector
= sel
;
2085 main_part
->key
.as_es
= key
->as_es
;
2086 main_part
->key
.as_ls
= key
->as_ls
;
2087 main_part
->key
.as_ngg
= key
->as_ngg
;
2088 main_part
->is_monolithic
= false;
2090 if (!si_compile_shader(sscreen
, compiler_state
->compiler
, main_part
,
2091 &compiler_state
->debug
)) {
2101 * Select a shader variant according to the shader key.
2103 * \param optimized_or_none If the key describes an optimized shader variant and
2104 * the compilation isn't finished, don't select any
2105 * shader and return an error.
2107 int si_shader_select_with_key(struct si_screen
*sscreen
, struct si_shader_ctx_state
*state
,
2108 struct si_compiler_ctx_state
*compiler_state
,
2109 struct si_shader_key
*key
, int thread_index
, bool optimized_or_none
)
2111 struct si_shader_selector
*sel
= state
->cso
;
2112 struct si_shader_selector
*previous_stage_sel
= NULL
;
2113 struct si_shader
*current
= state
->current
;
2114 struct si_shader
*iter
, *shader
= NULL
;
2117 /* Check if we don't need to change anything.
2118 * This path is also used for most shaders that don't need multiple
2119 * variants, it will cost just a computation of the key and this
2121 if (likely(current
&& memcmp(¤t
->key
, key
, sizeof(*key
)) == 0)) {
2122 if (unlikely(!util_queue_fence_is_signalled(¤t
->ready
))) {
2123 if (current
->is_optimized
) {
2124 if (optimized_or_none
)
2127 memset(&key
->opt
, 0, sizeof(key
->opt
));
2128 goto current_not_ready
;
2131 util_queue_fence_wait(¤t
->ready
);
2134 return current
->compilation_failed
? -1 : 0;
2138 /* This must be done before the mutex is locked, because async GS
2139 * compilation calls this function too, and therefore must enter
2142 * Only wait if we are in a draw call. Don't wait if we are
2143 * in a compiler thread.
2145 if (thread_index
< 0)
2146 util_queue_fence_wait(&sel
->ready
);
2148 simple_mtx_lock(&sel
->mutex
);
2150 /* Find the shader variant. */
2151 for (iter
= sel
->first_variant
; iter
; iter
= iter
->next_variant
) {
2152 /* Don't check the "current" shader. We checked it above. */
2153 if (current
!= iter
&& memcmp(&iter
->key
, key
, sizeof(*key
)) == 0) {
2154 simple_mtx_unlock(&sel
->mutex
);
2156 if (unlikely(!util_queue_fence_is_signalled(&iter
->ready
))) {
2157 /* If it's an optimized shader and its compilation has
2158 * been started but isn't done, use the unoptimized
2159 * shader so as not to cause a stall due to compilation.
2161 if (iter
->is_optimized
) {
2162 if (optimized_or_none
)
2164 memset(&key
->opt
, 0, sizeof(key
->opt
));
2168 util_queue_fence_wait(&iter
->ready
);
2171 if (iter
->compilation_failed
) {
2172 return -1; /* skip the draw call */
2175 state
->current
= iter
;
2180 /* Build a new shader. */
2181 shader
= CALLOC_STRUCT(si_shader
);
2183 simple_mtx_unlock(&sel
->mutex
);
2187 util_queue_fence_init(&shader
->ready
);
2189 shader
->selector
= sel
;
2191 shader
->compiler_ctx_state
= *compiler_state
;
2193 /* If this is a merged shader, get the first shader's selector. */
2194 if (sscreen
->info
.chip_class
>= GFX9
) {
2195 if (sel
->type
== PIPE_SHADER_TESS_CTRL
)
2196 previous_stage_sel
= key
->part
.tcs
.ls
;
2197 else if (sel
->type
== PIPE_SHADER_GEOMETRY
)
2198 previous_stage_sel
= key
->part
.gs
.es
;
2200 /* We need to wait for the previous shader. */
2201 if (previous_stage_sel
&& thread_index
< 0)
2202 util_queue_fence_wait(&previous_stage_sel
->ready
);
2205 bool is_pure_monolithic
=
2206 sscreen
->use_monolithic_shaders
|| memcmp(&key
->mono
, &zeroed
.mono
, sizeof(key
->mono
)) != 0;
2208 /* Compile the main shader part if it doesn't exist. This can happen
2209 * if the initial guess was wrong.
2211 * The prim discard CS doesn't need the main shader part.
2213 if (!is_pure_monolithic
&& !key
->opt
.vs_as_prim_discard_cs
) {
2216 /* Make sure the main shader part is present. This is needed
2217 * for shaders that can be compiled as VS, LS, or ES, and only
2218 * one of them is compiled at creation.
2220 * It is also needed for GS, which can be compiled as non-NGG
2223 * For merged shaders, check that the starting shader's main
2226 if (previous_stage_sel
) {
2227 struct si_shader_key shader1_key
= zeroed
;
2229 if (sel
->type
== PIPE_SHADER_TESS_CTRL
) {
2230 shader1_key
.as_ls
= 1;
2231 } else if (sel
->type
== PIPE_SHADER_GEOMETRY
) {
2232 shader1_key
.as_es
= 1;
2233 shader1_key
.as_ngg
= key
->as_ngg
; /* for Wave32 vs Wave64 */
2238 simple_mtx_lock(&previous_stage_sel
->mutex
);
2239 ok
= si_check_missing_main_part(sscreen
, previous_stage_sel
, compiler_state
, &shader1_key
);
2240 simple_mtx_unlock(&previous_stage_sel
->mutex
);
2244 ok
= si_check_missing_main_part(sscreen
, sel
, compiler_state
, key
);
2249 simple_mtx_unlock(&sel
->mutex
);
2250 return -ENOMEM
; /* skip the draw call */
2254 /* Keep the reference to the 1st shader of merged shaders, so that
2255 * Gallium can't destroy it before we destroy the 2nd shader.
2257 * Set sctx = NULL, because it's unused if we're not releasing
2258 * the shader, and we don't have any sctx here.
2260 si_shader_selector_reference(NULL
, &shader
->previous_stage_sel
, previous_stage_sel
);
2262 /* Monolithic-only shaders don't make a distinction between optimized
2263 * and unoptimized. */
2264 shader
->is_monolithic
=
2265 is_pure_monolithic
|| memcmp(&key
->opt
, &zeroed
.opt
, sizeof(key
->opt
)) != 0;
2267 /* The prim discard CS is always optimized. */
2268 shader
->is_optimized
= (!is_pure_monolithic
|| key
->opt
.vs_as_prim_discard_cs
) &&
2269 memcmp(&key
->opt
, &zeroed
.opt
, sizeof(key
->opt
)) != 0;
2271 /* If it's an optimized shader, compile it asynchronously. */
2272 if (shader
->is_optimized
&& thread_index
< 0) {
2273 /* Compile it asynchronously. */
2274 util_queue_add_job(&sscreen
->shader_compiler_queue_low_priority
, shader
, &shader
->ready
,
2275 si_build_shader_variant_low_priority
, NULL
, 0);
2277 /* Add only after the ready fence was reset, to guard against a
2278 * race with si_bind_XX_shader. */
2279 if (!sel
->last_variant
) {
2280 sel
->first_variant
= shader
;
2281 sel
->last_variant
= shader
;
2283 sel
->last_variant
->next_variant
= shader
;
2284 sel
->last_variant
= shader
;
2287 /* Use the default (unoptimized) shader for now. */
2288 memset(&key
->opt
, 0, sizeof(key
->opt
));
2289 simple_mtx_unlock(&sel
->mutex
);
2291 if (sscreen
->options
.sync_compile
)
2292 util_queue_fence_wait(&shader
->ready
);
2294 if (optimized_or_none
)
2299 /* Reset the fence before adding to the variant list. */
2300 util_queue_fence_reset(&shader
->ready
);
2302 if (!sel
->last_variant
) {
2303 sel
->first_variant
= shader
;
2304 sel
->last_variant
= shader
;
2306 sel
->last_variant
->next_variant
= shader
;
2307 sel
->last_variant
= shader
;
2310 simple_mtx_unlock(&sel
->mutex
);
2312 assert(!shader
->is_optimized
);
2313 si_build_shader_variant(shader
, thread_index
, false);
2315 util_queue_fence_signal(&shader
->ready
);
2317 if (!shader
->compilation_failed
)
2318 state
->current
= shader
;
2320 return shader
->compilation_failed
? -1 : 0;
2323 static int si_shader_select(struct pipe_context
*ctx
, struct si_shader_ctx_state
*state
,
2324 union si_vgt_stages_key stages_key
,
2325 struct si_compiler_ctx_state
*compiler_state
)
2327 struct si_context
*sctx
= (struct si_context
*)ctx
;
2328 struct si_shader_key key
;
2330 si_shader_selector_key(ctx
, state
->cso
, stages_key
, &key
);
2331 return si_shader_select_with_key(sctx
->screen
, state
, compiler_state
, &key
, -1, false);
2334 static void si_parse_next_shader_property(const struct si_shader_info
*info
, bool streamout
,
2335 struct si_shader_key
*key
)
2337 unsigned next_shader
= info
->properties
[TGSI_PROPERTY_NEXT_SHADER
];
2339 switch (info
->processor
) {
2340 case PIPE_SHADER_VERTEX
:
2341 switch (next_shader
) {
2342 case PIPE_SHADER_GEOMETRY
:
2345 case PIPE_SHADER_TESS_CTRL
:
2346 case PIPE_SHADER_TESS_EVAL
:
2350 /* If POSITION isn't written, it can only be a HW VS
2351 * if streamout is used. If streamout isn't used,
2352 * assume that it's a HW LS. (the next shader is TCS)
2353 * This heuristic is needed for separate shader objects.
2355 if (!info
->writes_position
&& !streamout
)
2360 case PIPE_SHADER_TESS_EVAL
:
2361 if (next_shader
== PIPE_SHADER_GEOMETRY
|| !info
->writes_position
)
2368 * Compile the main shader part or the monolithic shader as part of
2369 * si_shader_selector initialization. Since it can be done asynchronously,
2370 * there is no way to report compile failures to applications.
2372 static void si_init_shader_selector_async(void *job
, int thread_index
)
2374 struct si_shader_selector
*sel
= (struct si_shader_selector
*)job
;
2375 struct si_screen
*sscreen
= sel
->screen
;
2376 struct ac_llvm_compiler
*compiler
;
2377 struct pipe_debug_callback
*debug
= &sel
->compiler_ctx_state
.debug
;
2379 assert(!debug
->debug_message
|| debug
->async
);
2380 assert(thread_index
>= 0);
2381 assert(thread_index
< ARRAY_SIZE(sscreen
->compiler
));
2382 compiler
= &sscreen
->compiler
[thread_index
];
2384 if (!compiler
->passes
)
2385 si_init_compiler(sscreen
, compiler
);
2387 /* Serialize NIR to save memory. Monolithic shader variants
2388 * have to deserialize NIR before compilation.
2395 /* true = remove optional debugging data to increase
2396 * the likehood of getting more shader cache hits.
2397 * It also drops variable names, so we'll save more memory.
2399 nir_serialize(&blob
, sel
->nir
, true);
2400 blob_finish_get_buffer(&blob
, &sel
->nir_binary
, &size
);
2401 sel
->nir_size
= size
;
2404 /* Compile the main shader part for use with a prolog and/or epilog.
2405 * If this fails, the driver will try to compile a monolithic shader
2408 if (!sscreen
->use_monolithic_shaders
) {
2409 struct si_shader
*shader
= CALLOC_STRUCT(si_shader
);
2410 unsigned char ir_sha1_cache_key
[20];
2413 fprintf(stderr
, "radeonsi: can't allocate a main shader part\n");
2417 /* We can leave the fence signaled because use of the default
2418 * main part is guarded by the selector's ready fence. */
2419 util_queue_fence_init(&shader
->ready
);
2421 shader
->selector
= sel
;
2422 shader
->is_monolithic
= false;
2423 si_parse_next_shader_property(&sel
->info
, sel
->so
.num_outputs
!= 0, &shader
->key
);
2425 if (sscreen
->use_ngg
&& (!sel
->so
.num_outputs
|| sscreen
->use_ngg_streamout
) &&
2426 ((sel
->type
== PIPE_SHADER_VERTEX
&& !shader
->key
.as_ls
) ||
2427 sel
->type
== PIPE_SHADER_TESS_EVAL
|| sel
->type
== PIPE_SHADER_GEOMETRY
))
2428 shader
->key
.as_ngg
= 1;
2431 si_get_ir_cache_key(sel
, shader
->key
.as_ngg
, shader
->key
.as_es
, ir_sha1_cache_key
);
2434 /* Try to load the shader from the shader cache. */
2435 simple_mtx_lock(&sscreen
->shader_cache_mutex
);
2437 if (si_shader_cache_load_shader(sscreen
, ir_sha1_cache_key
, shader
)) {
2438 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2439 si_shader_dump_stats_for_shader_db(sscreen
, shader
, debug
);
2441 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2443 /* Compile the shader if it hasn't been loaded from the cache. */
2444 if (!si_compile_shader(sscreen
, compiler
, shader
, debug
)) {
2446 fprintf(stderr
, "radeonsi: can't compile a main shader part\n");
2450 simple_mtx_lock(&sscreen
->shader_cache_mutex
);
2451 si_shader_cache_insert_shader(sscreen
, ir_sha1_cache_key
, shader
, true);
2452 simple_mtx_unlock(&sscreen
->shader_cache_mutex
);
2455 *si_get_main_shader_part(sel
, &shader
->key
) = shader
;
2457 /* Unset "outputs_written" flags for outputs converted to
2458 * DEFAULT_VAL, so that later inter-shader optimizations don't
2459 * try to eliminate outputs that don't exist in the final
2462 * This is only done if non-monolithic shaders are enabled.
2464 if ((sel
->type
== PIPE_SHADER_VERTEX
|| sel
->type
== PIPE_SHADER_TESS_EVAL
) &&
2465 !shader
->key
.as_ls
&& !shader
->key
.as_es
) {
2468 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
2469 unsigned offset
= shader
->info
.vs_output_param_offset
[i
];
2471 if (offset
<= AC_EXP_PARAM_OFFSET_31
)
2474 unsigned name
= sel
->info
.output_semantic_name
[i
];
2475 unsigned index
= sel
->info
.output_semantic_index
[i
];
2479 case TGSI_SEMANTIC_GENERIC
:
2480 /* don't process indices the function can't handle */
2481 if (index
>= SI_MAX_IO_GENERIC
)
2485 id
= si_shader_io_get_unique_index(name
, index
, true);
2486 sel
->outputs_written_before_ps
&= ~(1ull << id
);
2488 case TGSI_SEMANTIC_POSITION
: /* ignore these */
2489 case TGSI_SEMANTIC_PSIZE
:
2490 case TGSI_SEMANTIC_CLIPVERTEX
:
2491 case TGSI_SEMANTIC_EDGEFLAG
:
2498 /* The GS copy shader is always pre-compiled. */
2499 if (sel
->type
== PIPE_SHADER_GEOMETRY
&&
2500 (!sscreen
->use_ngg
|| !sscreen
->use_ngg_streamout
|| /* also for PRIMITIVES_GENERATED */
2501 sel
->tess_turns_off_ngg
)) {
2502 sel
->gs_copy_shader
= si_generate_gs_copy_shader(sscreen
, compiler
, sel
, debug
);
2503 if (!sel
->gs_copy_shader
) {
2504 fprintf(stderr
, "radeonsi: can't create GS copy shader\n");
2508 si_shader_vs(sscreen
, sel
->gs_copy_shader
, sel
);
2511 /* Free NIR. We only keep serialized NIR after this point. */
2513 ralloc_free(sel
->nir
);
2518 void si_schedule_initial_compile(struct si_context
*sctx
, unsigned processor
,
2519 struct util_queue_fence
*ready_fence
,
2520 struct si_compiler_ctx_state
*compiler_ctx_state
, void *job
,
2521 util_queue_execute_func execute
)
2523 util_queue_fence_init(ready_fence
);
2525 struct util_async_debug_callback async_debug
;
2526 bool debug
= (sctx
->debug
.debug_message
&& !sctx
->debug
.async
) || sctx
->is_debug
||
2527 si_can_dump_shader(sctx
->screen
, processor
);
2530 u_async_debug_init(&async_debug
);
2531 compiler_ctx_state
->debug
= async_debug
.base
;
2534 util_queue_add_job(&sctx
->screen
->shader_compiler_queue
, job
, ready_fence
, execute
, NULL
, 0);
2537 util_queue_fence_wait(ready_fence
);
2538 u_async_debug_drain(&async_debug
, &sctx
->debug
);
2539 u_async_debug_cleanup(&async_debug
);
2542 if (sctx
->screen
->options
.sync_compile
)
2543 util_queue_fence_wait(ready_fence
);
2546 /* Return descriptor slot usage masks from the given shader info. */
2547 void si_get_active_slot_masks(const struct si_shader_info
*info
, uint64_t *const_and_shader_buffers
,
2548 uint64_t *samplers_and_images
)
2550 unsigned start
, num_shaderbufs
, num_constbufs
, num_images
, num_msaa_images
, num_samplers
;
2552 num_shaderbufs
= util_last_bit(info
->shader_buffers_declared
);
2553 num_constbufs
= util_last_bit(info
->const_buffers_declared
);
2554 /* two 8-byte images share one 16-byte slot */
2555 num_images
= align(util_last_bit(info
->images_declared
), 2);
2556 num_msaa_images
= align(util_last_bit(info
->msaa_images_declared
), 2);
2557 num_samplers
= util_last_bit(info
->samplers_declared
);
2559 /* The layout is: sb[last] ... sb[0], cb[0] ... cb[last] */
2560 start
= si_get_shaderbuf_slot(num_shaderbufs
- 1);
2561 *const_and_shader_buffers
= u_bit_consecutive64(start
, num_shaderbufs
+ num_constbufs
);
2564 * - fmask[last] ... fmask[0] go to [15-last .. 15]
2565 * - image[last] ... image[0] go to [31-last .. 31]
2566 * - sampler[0] ... sampler[last] go to [32 .. 32+last*2]
2568 * FMASKs for images are placed separately, because MSAA images are rare,
2569 * and so we can benefit from a better cache hit rate if we keep image
2570 * descriptors together.
2572 if (num_msaa_images
)
2573 num_images
= SI_NUM_IMAGES
+ num_msaa_images
; /* add FMASK descriptors */
2575 start
= si_get_image_slot(num_images
- 1) / 2;
2576 *samplers_and_images
= u_bit_consecutive64(start
, num_images
/ 2 + num_samplers
);
2579 static void *si_create_shader_selector(struct pipe_context
*ctx
,
2580 const struct pipe_shader_state
*state
)
2582 struct si_screen
*sscreen
= (struct si_screen
*)ctx
->screen
;
2583 struct si_context
*sctx
= (struct si_context
*)ctx
;
2584 struct si_shader_selector
*sel
= CALLOC_STRUCT(si_shader_selector
);
2590 sel
->screen
= sscreen
;
2591 sel
->compiler_ctx_state
.debug
= sctx
->debug
;
2592 sel
->compiler_ctx_state
.is_debug_context
= sctx
->is_debug
;
2594 sel
->so
= state
->stream_output
;
2596 if (state
->type
== PIPE_SHADER_IR_TGSI
) {
2597 sel
->nir
= tgsi_to_nir(state
->tokens
, ctx
->screen
, true);
2599 assert(state
->type
== PIPE_SHADER_IR_NIR
);
2600 sel
->nir
= state
->ir
.nir
;
2603 si_nir_scan_shader(sel
->nir
, &sel
->info
);
2604 si_nir_adjust_driver_locations(sel
->nir
);
2606 sel
->type
= sel
->info
.processor
;
2607 p_atomic_inc(&sscreen
->num_shaders_created
);
2608 si_get_active_slot_masks(&sel
->info
, &sel
->active_const_and_shader_buffers
,
2609 &sel
->active_samplers_and_images
);
2611 /* Record which streamout buffers are enabled. */
2612 for (i
= 0; i
< sel
->so
.num_outputs
; i
++) {
2613 sel
->enabled_streamout_buffer_mask
|= (1 << sel
->so
.output
[i
].output_buffer
)
2614 << (sel
->so
.output
[i
].stream
* 4);
2617 sel
->num_vs_inputs
=
2618 sel
->type
== PIPE_SHADER_VERTEX
&& !sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
]
2619 ? sel
->info
.num_inputs
2621 sel
->num_vbos_in_user_sgprs
= MIN2(sel
->num_vs_inputs
, sscreen
->num_vbos_in_user_sgprs
);
2623 /* The prolog is a no-op if there are no inputs. */
2624 sel
->vs_needs_prolog
= sel
->type
== PIPE_SHADER_VERTEX
&& sel
->info
.num_inputs
&&
2625 !sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
];
2627 sel
->prim_discard_cs_allowed
=
2628 sel
->type
== PIPE_SHADER_VERTEX
&& !sel
->info
.uses_bindless_images
&&
2629 !sel
->info
.uses_bindless_samplers
&& !sel
->info
.writes_memory
&&
2630 !sel
->info
.writes_viewport_index
&&
2631 !sel
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] && !sel
->so
.num_outputs
;
2633 switch (sel
->type
) {
2634 case PIPE_SHADER_GEOMETRY
:
2635 sel
->gs_output_prim
= sel
->info
.properties
[TGSI_PROPERTY_GS_OUTPUT_PRIM
];
2637 /* Only possibilities: POINTS, LINE_STRIP, TRIANGLES */
2638 sel
->rast_prim
= sel
->gs_output_prim
;
2639 if (util_rast_prim_is_triangles(sel
->rast_prim
))
2640 sel
->rast_prim
= PIPE_PRIM_TRIANGLES
;
2642 sel
->gs_max_out_vertices
= sel
->info
.properties
[TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
];
2643 sel
->gs_num_invocations
= sel
->info
.properties
[TGSI_PROPERTY_GS_INVOCATIONS
];
2644 sel
->gsvs_vertex_size
= sel
->info
.num_outputs
* 16;
2645 sel
->max_gsvs_emit_size
= sel
->gsvs_vertex_size
* sel
->gs_max_out_vertices
;
2647 sel
->max_gs_stream
= 0;
2648 for (i
= 0; i
< sel
->so
.num_outputs
; i
++)
2649 sel
->max_gs_stream
= MAX2(sel
->max_gs_stream
, sel
->so
.output
[i
].stream
);
2651 sel
->gs_input_verts_per_prim
=
2652 u_vertices_per_prim(sel
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
]);
2654 /* EN_MAX_VERT_OUT_PER_GS_INSTANCE does not work with tesselation. */
2655 sel
->tess_turns_off_ngg
= sscreen
->info
.chip_class
>= GFX10
&&
2656 sel
->gs_num_invocations
* sel
->gs_max_out_vertices
> 256;
2659 case PIPE_SHADER_TESS_CTRL
:
2660 /* Always reserve space for these. */
2661 sel
->patch_outputs_written
|=
2662 (1ull << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSINNER
, 0)) |
2663 (1ull << si_shader_io_get_unique_index_patch(TGSI_SEMANTIC_TESSOUTER
, 0));
2665 case PIPE_SHADER_VERTEX
:
2666 case PIPE_SHADER_TESS_EVAL
:
2667 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
2668 unsigned name
= sel
->info
.output_semantic_name
[i
];
2669 unsigned index
= sel
->info
.output_semantic_index
[i
];
2672 case TGSI_SEMANTIC_TESSINNER
:
2673 case TGSI_SEMANTIC_TESSOUTER
:
2674 case TGSI_SEMANTIC_PATCH
:
2675 sel
->patch_outputs_written
|= 1ull << si_shader_io_get_unique_index_patch(name
, index
);
2678 case TGSI_SEMANTIC_GENERIC
:
2679 /* don't process indices the function can't handle */
2680 if (index
>= SI_MAX_IO_GENERIC
)
2684 sel
->outputs_written
|= 1ull << si_shader_io_get_unique_index(name
, index
, false);
2685 sel
->outputs_written_before_ps
|= 1ull
2686 << si_shader_io_get_unique_index(name
, index
, true);
2688 case TGSI_SEMANTIC_EDGEFLAG
:
2692 sel
->esgs_itemsize
= util_last_bit64(sel
->outputs_written
) * 16;
2693 sel
->lshs_vertex_stride
= sel
->esgs_itemsize
;
2695 /* Add 1 dword to reduce LDS bank conflicts, so that each vertex
2696 * will start on a different bank. (except for the maximum 32*16).
2698 if (sel
->lshs_vertex_stride
< 32 * 16)
2699 sel
->lshs_vertex_stride
+= 4;
2701 /* For the ESGS ring in LDS, add 1 dword to reduce LDS bank
2702 * conflicts, i.e. each vertex will start at a different bank.
2704 if (sctx
->chip_class
>= GFX9
)
2705 sel
->esgs_itemsize
+= 4;
2707 assert(((sel
->esgs_itemsize
/ 4) & C_028AAC_ITEMSIZE
) == 0);
2710 if (sel
->info
.properties
[TGSI_PROPERTY_TES_POINT_MODE
])
2711 sel
->rast_prim
= PIPE_PRIM_POINTS
;
2712 else if (sel
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
] == PIPE_PRIM_LINES
)
2713 sel
->rast_prim
= PIPE_PRIM_LINE_STRIP
;
2715 sel
->rast_prim
= PIPE_PRIM_TRIANGLES
;
2718 case PIPE_SHADER_FRAGMENT
:
2719 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
2720 unsigned name
= sel
->info
.input_semantic_name
[i
];
2721 unsigned index
= sel
->info
.input_semantic_index
[i
];
2724 case TGSI_SEMANTIC_GENERIC
:
2725 /* don't process indices the function can't handle */
2726 if (index
>= SI_MAX_IO_GENERIC
)
2730 sel
->inputs_read
|= 1ull << si_shader_io_get_unique_index(name
, index
, true);
2732 case TGSI_SEMANTIC_PCOORD
: /* ignore this */
2737 for (i
= 0; i
< 8; i
++)
2738 if (sel
->info
.colors_written
& (1 << i
))
2739 sel
->colors_written_4bit
|= 0xf << (4 * i
);
2741 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
2742 if (sel
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_COLOR
) {
2743 int index
= sel
->info
.input_semantic_index
[i
];
2744 sel
->color_attr_index
[index
] = i
;
2751 sel
->ngg_culling_allowed
=
2752 sscreen
->info
.chip_class
>= GFX10
&&
2753 sscreen
->info
.has_dedicated_vram
&&
2754 sscreen
->use_ngg_culling
&&
2755 (sel
->type
== PIPE_SHADER_VERTEX
||
2756 (sel
->type
== PIPE_SHADER_TESS_EVAL
&&
2757 (sscreen
->always_use_ngg_culling_all
||
2758 sscreen
->always_use_ngg_culling_tess
))) &&
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
);
2851 static void si_update_streamout_state(struct si_context
*sctx
)
2853 struct si_shader_selector
*shader_with_so
= si_get_vs(sctx
)->cso
;
2855 if (!shader_with_so
)
2858 sctx
->streamout
.enabled_stream_buffers_mask
= shader_with_so
->enabled_streamout_buffer_mask
;
2859 sctx
->streamout
.stride_in_dw
= shader_with_so
->so
.stride
;
2862 static void si_update_clip_regs(struct si_context
*sctx
, struct si_shader_selector
*old_hw_vs
,
2863 struct si_shader
*old_hw_vs_variant
,
2864 struct si_shader_selector
*next_hw_vs
,
2865 struct si_shader
*next_hw_vs_variant
)
2869 old_hw_vs
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] !=
2870 next_hw_vs
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
] ||
2871 old_hw_vs
->pa_cl_vs_out_cntl
!= next_hw_vs
->pa_cl_vs_out_cntl
||
2872 old_hw_vs
->clipdist_mask
!= next_hw_vs
->clipdist_mask
||
2873 old_hw_vs
->culldist_mask
!= next_hw_vs
->culldist_mask
|| !old_hw_vs_variant
||
2874 !next_hw_vs_variant
||
2875 old_hw_vs_variant
->key
.opt
.clip_disable
!= next_hw_vs_variant
->key
.opt
.clip_disable
))
2876 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.clip_regs
);
2879 static void si_update_common_shader_state(struct si_context
*sctx
)
2881 sctx
->uses_bindless_samplers
= si_shader_uses_bindless_samplers(sctx
->vs_shader
.cso
) ||
2882 si_shader_uses_bindless_samplers(sctx
->gs_shader
.cso
) ||
2883 si_shader_uses_bindless_samplers(sctx
->ps_shader
.cso
) ||
2884 si_shader_uses_bindless_samplers(sctx
->tcs_shader
.cso
) ||
2885 si_shader_uses_bindless_samplers(sctx
->tes_shader
.cso
);
2886 sctx
->uses_bindless_images
= si_shader_uses_bindless_images(sctx
->vs_shader
.cso
) ||
2887 si_shader_uses_bindless_images(sctx
->gs_shader
.cso
) ||
2888 si_shader_uses_bindless_images(sctx
->ps_shader
.cso
) ||
2889 si_shader_uses_bindless_images(sctx
->tcs_shader
.cso
) ||
2890 si_shader_uses_bindless_images(sctx
->tes_shader
.cso
);
2891 sctx
->do_update_shaders
= true;
2894 static void si_bind_vs_shader(struct pipe_context
*ctx
, void *state
)
2896 struct si_context
*sctx
= (struct si_context
*)ctx
;
2897 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
2898 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
2899 struct si_shader_selector
*sel
= state
;
2901 if (sctx
->vs_shader
.cso
== sel
)
2904 sctx
->vs_shader
.cso
= sel
;
2905 sctx
->vs_shader
.current
= sel
? sel
->first_variant
: NULL
;
2906 sctx
->num_vs_blit_sgprs
= sel
? sel
->info
.properties
[TGSI_PROPERTY_VS_BLIT_SGPRS_AMD
] : 0;
2908 if (si_update_ngg(sctx
))
2909 si_shader_change_notify(sctx
);
2911 si_update_common_shader_state(sctx
);
2912 si_update_vs_viewport_state(sctx
);
2913 si_set_active_descriptors_for_shader(sctx
, sel
);
2914 si_update_streamout_state(sctx
);
2915 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
2916 si_get_vs_state(sctx
));
2919 static void si_update_tess_uses_prim_id(struct si_context
*sctx
)
2921 sctx
->ia_multi_vgt_param_key
.u
.tess_uses_prim_id
=
2922 (sctx
->tes_shader
.cso
&& sctx
->tes_shader
.cso
->info
.uses_primid
) ||
2923 (sctx
->tcs_shader
.cso
&& sctx
->tcs_shader
.cso
->info
.uses_primid
) ||
2924 (sctx
->gs_shader
.cso
&& sctx
->gs_shader
.cso
->info
.uses_primid
) ||
2925 (sctx
->ps_shader
.cso
&& !sctx
->gs_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
);
2928 bool si_update_ngg(struct si_context
*sctx
)
2930 if (!sctx
->screen
->use_ngg
) {
2935 bool new_ngg
= true;
2937 if (sctx
->gs_shader
.cso
&& sctx
->tes_shader
.cso
&& sctx
->gs_shader
.cso
->tess_turns_off_ngg
) {
2939 } else if (!sctx
->screen
->use_ngg_streamout
) {
2940 struct si_shader_selector
*last
= si_get_vs(sctx
)->cso
;
2942 if ((last
&& last
->so
.num_outputs
) || sctx
->streamout
.prims_gen_query_enabled
)
2946 if (new_ngg
!= sctx
->ngg
) {
2947 /* Transitioning from NGG to legacy GS requires VGT_FLUSH on Navi10-14.
2948 * VGT_FLUSH is also emitted at the beginning of IBs when legacy GS ring
2951 if (sctx
->chip_class
== GFX10
&& !new_ngg
)
2952 sctx
->flags
|= SI_CONTEXT_VGT_FLUSH
;
2954 sctx
->ngg
= new_ngg
;
2955 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
2961 static void si_bind_gs_shader(struct pipe_context
*ctx
, void *state
)
2963 struct si_context
*sctx
= (struct si_context
*)ctx
;
2964 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
2965 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
2966 struct si_shader_selector
*sel
= state
;
2967 bool enable_changed
= !!sctx
->gs_shader
.cso
!= !!sel
;
2970 if (sctx
->gs_shader
.cso
== sel
)
2973 sctx
->gs_shader
.cso
= sel
;
2974 sctx
->gs_shader
.current
= sel
? sel
->first_variant
: NULL
;
2975 sctx
->ia_multi_vgt_param_key
.u
.uses_gs
= sel
!= NULL
;
2977 si_update_common_shader_state(sctx
);
2978 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
2980 ngg_changed
= si_update_ngg(sctx
);
2981 if (ngg_changed
|| enable_changed
)
2982 si_shader_change_notify(sctx
);
2983 if (enable_changed
) {
2984 if (sctx
->ia_multi_vgt_param_key
.u
.uses_tess
)
2985 si_update_tess_uses_prim_id(sctx
);
2987 si_update_vs_viewport_state(sctx
);
2988 si_set_active_descriptors_for_shader(sctx
, sel
);
2989 si_update_streamout_state(sctx
);
2990 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
2991 si_get_vs_state(sctx
));
2994 static void si_bind_tcs_shader(struct pipe_context
*ctx
, void *state
)
2996 struct si_context
*sctx
= (struct si_context
*)ctx
;
2997 struct si_shader_selector
*sel
= state
;
2998 bool enable_changed
= !!sctx
->tcs_shader
.cso
!= !!sel
;
3000 if (sctx
->tcs_shader
.cso
== sel
)
3003 sctx
->tcs_shader
.cso
= sel
;
3004 sctx
->tcs_shader
.current
= sel
? sel
->first_variant
: NULL
;
3005 si_update_tess_uses_prim_id(sctx
);
3007 si_update_common_shader_state(sctx
);
3010 sctx
->last_tcs
= NULL
; /* invalidate derived tess state */
3012 si_set_active_descriptors_for_shader(sctx
, sel
);
3015 static void si_bind_tes_shader(struct pipe_context
*ctx
, void *state
)
3017 struct si_context
*sctx
= (struct si_context
*)ctx
;
3018 struct si_shader_selector
*old_hw_vs
= si_get_vs(sctx
)->cso
;
3019 struct si_shader
*old_hw_vs_variant
= si_get_vs_state(sctx
);
3020 struct si_shader_selector
*sel
= state
;
3021 bool enable_changed
= !!sctx
->tes_shader
.cso
!= !!sel
;
3023 if (sctx
->tes_shader
.cso
== sel
)
3026 sctx
->tes_shader
.cso
= sel
;
3027 sctx
->tes_shader
.current
= sel
? sel
->first_variant
: NULL
;
3028 sctx
->ia_multi_vgt_param_key
.u
.uses_tess
= sel
!= NULL
;
3029 si_update_tess_uses_prim_id(sctx
);
3031 si_update_common_shader_state(sctx
);
3032 sctx
->last_gs_out_prim
= -1; /* reset this so that it gets updated */
3034 bool ngg_changed
= si_update_ngg(sctx
);
3035 if (ngg_changed
|| enable_changed
)
3036 si_shader_change_notify(sctx
);
3038 sctx
->last_tes_sh_base
= -1; /* invalidate derived tess state */
3039 si_update_vs_viewport_state(sctx
);
3040 si_set_active_descriptors_for_shader(sctx
, sel
);
3041 si_update_streamout_state(sctx
);
3042 si_update_clip_regs(sctx
, old_hw_vs
, old_hw_vs_variant
, si_get_vs(sctx
)->cso
,
3043 si_get_vs_state(sctx
));
3046 static void si_bind_ps_shader(struct pipe_context
*ctx
, void *state
)
3048 struct si_context
*sctx
= (struct si_context
*)ctx
;
3049 struct si_shader_selector
*old_sel
= sctx
->ps_shader
.cso
;
3050 struct si_shader_selector
*sel
= state
;
3052 /* skip if supplied shader is one already in use */
3056 sctx
->ps_shader
.cso
= sel
;
3057 sctx
->ps_shader
.current
= sel
? sel
->first_variant
: NULL
;
3059 si_update_common_shader_state(sctx
);
3061 if (sctx
->ia_multi_vgt_param_key
.u
.uses_tess
)
3062 si_update_tess_uses_prim_id(sctx
);
3064 if (!old_sel
|| old_sel
->info
.colors_written
!= sel
->info
.colors_written
)
3065 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.cb_render_state
);
3067 if (sctx
->screen
->has_out_of_order_rast
&&
3068 (!old_sel
|| old_sel
->info
.writes_memory
!= sel
->info
.writes_memory
||
3069 old_sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
] !=
3070 sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
]))
3071 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_config
);
3073 si_set_active_descriptors_for_shader(sctx
, sel
);
3074 si_update_ps_colorbuf0_slot(sctx
);
3077 static void si_delete_shader(struct si_context
*sctx
, struct si_shader
*shader
)
3079 if (shader
->is_optimized
) {
3080 util_queue_drop_job(&sctx
->screen
->shader_compiler_queue_low_priority
, &shader
->ready
);
3083 util_queue_fence_destroy(&shader
->ready
);
3086 /* If destroyed shaders were not unbound, the next compiled
3087 * shader variant could get the same pointer address and so
3088 * binding it to the same shader stage would be considered
3089 * a no-op, causing random behavior.
3091 switch (shader
->selector
->type
) {
3092 case PIPE_SHADER_VERTEX
:
3093 if (shader
->key
.as_ls
) {
3094 assert(sctx
->chip_class
<= GFX8
);
3095 si_pm4_delete_state(sctx
, ls
, shader
->pm4
);
3096 } else if (shader
->key
.as_es
) {
3097 assert(sctx
->chip_class
<= GFX8
);
3098 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
3099 } else if (shader
->key
.as_ngg
) {
3100 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3102 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3105 case PIPE_SHADER_TESS_CTRL
:
3106 si_pm4_delete_state(sctx
, hs
, shader
->pm4
);
3108 case PIPE_SHADER_TESS_EVAL
:
3109 if (shader
->key
.as_es
) {
3110 assert(sctx
->chip_class
<= GFX8
);
3111 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
3112 } else if (shader
->key
.as_ngg
) {
3113 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3115 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3118 case PIPE_SHADER_GEOMETRY
:
3119 if (shader
->is_gs_copy_shader
)
3120 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
3122 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
3124 case PIPE_SHADER_FRAGMENT
:
3125 si_pm4_delete_state(sctx
, ps
, shader
->pm4
);
3131 si_shader_selector_reference(sctx
, &shader
->previous_stage_sel
, NULL
);
3132 si_shader_destroy(shader
);
3136 static void si_destroy_shader_selector(struct pipe_context
*ctx
, void *cso
)
3138 struct si_context
*sctx
= (struct si_context
*)ctx
;
3139 struct si_shader_selector
*sel
= (struct si_shader_selector
*)cso
;
3140 struct si_shader
*p
= sel
->first_variant
, *c
;
3141 struct si_shader_ctx_state
*current_shader
[SI_NUM_SHADERS
] = {
3142 [PIPE_SHADER_VERTEX
] = &sctx
->vs_shader
, [PIPE_SHADER_TESS_CTRL
] = &sctx
->tcs_shader
,
3143 [PIPE_SHADER_TESS_EVAL
] = &sctx
->tes_shader
, [PIPE_SHADER_GEOMETRY
] = &sctx
->gs_shader
,
3144 [PIPE_SHADER_FRAGMENT
] = &sctx
->ps_shader
,
3147 util_queue_drop_job(&sctx
->screen
->shader_compiler_queue
, &sel
->ready
);
3149 if (current_shader
[sel
->type
]->cso
== sel
) {
3150 current_shader
[sel
->type
]->cso
= NULL
;
3151 current_shader
[sel
->type
]->current
= NULL
;
3155 c
= p
->next_variant
;
3156 si_delete_shader(sctx
, p
);
3160 if (sel
->main_shader_part
)
3161 si_delete_shader(sctx
, sel
->main_shader_part
);
3162 if (sel
->main_shader_part_ls
)
3163 si_delete_shader(sctx
, sel
->main_shader_part_ls
);
3164 if (sel
->main_shader_part_es
)
3165 si_delete_shader(sctx
, sel
->main_shader_part_es
);
3166 if (sel
->main_shader_part_ngg
)
3167 si_delete_shader(sctx
, sel
->main_shader_part_ngg
);
3168 if (sel
->gs_copy_shader
)
3169 si_delete_shader(sctx
, sel
->gs_copy_shader
);
3171 util_queue_fence_destroy(&sel
->ready
);
3172 simple_mtx_destroy(&sel
->mutex
);
3173 ralloc_free(sel
->nir
);
3174 free(sel
->nir_binary
);
3178 static void si_delete_shader_selector(struct pipe_context
*ctx
, void *state
)
3180 struct si_context
*sctx
= (struct si_context
*)ctx
;
3181 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
3183 si_shader_selector_reference(sctx
, &sel
, NULL
);
3186 static unsigned si_get_ps_input_cntl(struct si_context
*sctx
, struct si_shader
*vs
, unsigned name
,
3187 unsigned index
, unsigned interpolate
)
3189 struct si_shader_info
*vsinfo
= &vs
->selector
->info
;
3190 unsigned j
, offset
, ps_input_cntl
= 0;
3192 if (interpolate
== TGSI_INTERPOLATE_CONSTANT
||
3193 (interpolate
== TGSI_INTERPOLATE_COLOR
&& sctx
->flatshade
) || name
== TGSI_SEMANTIC_PRIMID
)
3194 ps_input_cntl
|= S_028644_FLAT_SHADE(1);
3196 if (name
== TGSI_SEMANTIC_PCOORD
||
3197 (name
== TGSI_SEMANTIC_TEXCOORD
&& sctx
->sprite_coord_enable
& (1 << index
))) {
3198 ps_input_cntl
|= S_028644_PT_SPRITE_TEX(1);
3201 for (j
= 0; j
< vsinfo
->num_outputs
; j
++) {
3202 if (name
== vsinfo
->output_semantic_name
[j
] && index
== vsinfo
->output_semantic_index
[j
]) {
3203 offset
= vs
->info
.vs_output_param_offset
[j
];
3205 if (offset
<= AC_EXP_PARAM_OFFSET_31
) {
3206 /* The input is loaded from parameter memory. */
3207 ps_input_cntl
|= S_028644_OFFSET(offset
);
3208 } else if (!G_028644_PT_SPRITE_TEX(ps_input_cntl
)) {
3209 if (offset
== AC_EXP_PARAM_UNDEFINED
) {
3210 /* This can happen with depth-only rendering. */
3213 /* The input is a DEFAULT_VAL constant. */
3214 assert(offset
>= AC_EXP_PARAM_DEFAULT_VAL_0000
&&
3215 offset
<= AC_EXP_PARAM_DEFAULT_VAL_1111
);
3216 offset
-= AC_EXP_PARAM_DEFAULT_VAL_0000
;
3219 ps_input_cntl
= S_028644_OFFSET(0x20) | S_028644_DEFAULT_VAL(offset
);
3225 if (j
== vsinfo
->num_outputs
&& name
== TGSI_SEMANTIC_PRIMID
)
3226 /* PrimID is written after the last output when HW VS is used. */
3227 ps_input_cntl
|= S_028644_OFFSET(vs
->info
.vs_output_param_offset
[vsinfo
->num_outputs
]);
3228 else if (j
== vsinfo
->num_outputs
&& !G_028644_PT_SPRITE_TEX(ps_input_cntl
)) {
3229 /* No corresponding output found, load defaults into input.
3230 * Don't set any other bits.
3231 * (FLAT_SHADE=1 completely changes behavior) */
3232 ps_input_cntl
= S_028644_OFFSET(0x20);
3233 /* D3D 9 behaviour. GL is undefined */
3234 if (name
== TGSI_SEMANTIC_COLOR
&& index
== 0)
3235 ps_input_cntl
|= S_028644_DEFAULT_VAL(3);
3237 return ps_input_cntl
;
3240 static void si_emit_spi_map(struct si_context
*sctx
)
3242 struct si_shader
*ps
= sctx
->ps_shader
.current
;
3243 struct si_shader
*vs
= si_get_vs_state(sctx
);
3244 struct si_shader_info
*psinfo
= ps
? &ps
->selector
->info
: NULL
;
3245 unsigned i
, num_interp
, num_written
= 0, bcol_interp
[2];
3246 unsigned spi_ps_input_cntl
[32];
3248 if (!ps
|| !ps
->selector
->info
.num_inputs
)
3251 num_interp
= si_get_ps_num_interp(ps
);
3252 assert(num_interp
> 0);
3254 for (i
= 0; i
< psinfo
->num_inputs
; i
++) {
3255 unsigned name
= psinfo
->input_semantic_name
[i
];
3256 unsigned index
= psinfo
->input_semantic_index
[i
];
3257 unsigned interpolate
= psinfo
->input_interpolate
[i
];
3259 spi_ps_input_cntl
[num_written
++] = si_get_ps_input_cntl(sctx
, vs
, name
, index
, interpolate
);
3261 if (name
== TGSI_SEMANTIC_COLOR
) {
3262 assert(index
< ARRAY_SIZE(bcol_interp
));
3263 bcol_interp
[index
] = interpolate
;
3267 if (ps
->key
.part
.ps
.prolog
.color_two_side
) {
3268 unsigned bcol
= TGSI_SEMANTIC_BCOLOR
;
3270 for (i
= 0; i
< 2; i
++) {
3271 if (!(psinfo
->colors_read
& (0xf << (i
* 4))))
3274 spi_ps_input_cntl
[num_written
++] = si_get_ps_input_cntl(sctx
, vs
, bcol
, i
, bcol_interp
[i
]);
3277 assert(num_interp
== num_written
);
3279 /* R_028644_SPI_PS_INPUT_CNTL_0 */
3280 /* Dota 2: Only ~16% of SPI map updates set different values. */
3281 /* Talos: Only ~9% of SPI map updates set different values. */
3282 unsigned initial_cdw
= sctx
->gfx_cs
->current
.cdw
;
3283 radeon_opt_set_context_regn(sctx
, R_028644_SPI_PS_INPUT_CNTL_0
, spi_ps_input_cntl
,
3284 sctx
->tracked_regs
.spi_ps_input_cntl
, num_interp
);
3286 if (initial_cdw
!= sctx
->gfx_cs
->current
.cdw
)
3287 sctx
->context_roll
= true;
3291 * Writing CONFIG or UCONFIG VGT registers requires VGT_FLUSH before that.
3293 static void si_cs_preamble_add_vgt_flush(struct si_context
*sctx
)
3295 if (sctx
->cs_preamble_has_vgt_flush
)
3298 /* Done by Vulkan before VGT_FLUSH. */
3299 si_pm4_cmd_add(sctx
->cs_preamble_state
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
3300 si_pm4_cmd_add(sctx
->cs_preamble_state
, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH
) | EVENT_INDEX(4));
3302 /* VGT_FLUSH is required even if VGT is idle. It resets VGT pointers. */
3303 si_pm4_cmd_add(sctx
->cs_preamble_state
, PKT3(PKT3_EVENT_WRITE
, 0, 0));
3304 si_pm4_cmd_add(sctx
->cs_preamble_state
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
3305 sctx
->cs_preamble_has_vgt_flush
= true;
3308 /* Initialize state related to ESGS / GSVS ring buffers */
3309 static bool si_update_gs_ring_buffers(struct si_context
*sctx
)
3311 struct si_shader_selector
*es
=
3312 sctx
->tes_shader
.cso
? sctx
->tes_shader
.cso
: sctx
->vs_shader
.cso
;
3313 struct si_shader_selector
*gs
= sctx
->gs_shader
.cso
;
3314 struct si_pm4_state
*pm4
;
3316 /* Chip constants. */
3317 unsigned num_se
= sctx
->screen
->info
.max_se
;
3318 unsigned wave_size
= 64;
3319 unsigned max_gs_waves
= 32 * num_se
; /* max 32 per SE on GCN */
3320 /* On GFX6-GFX7, the value comes from VGT_GS_VERTEX_REUSE = 16.
3321 * On GFX8+, the value comes from VGT_VERTEX_REUSE_BLOCK_CNTL = 30 (+2).
3323 unsigned gs_vertex_reuse
= (sctx
->chip_class
>= GFX8
? 32 : 16) * num_se
;
3324 unsigned alignment
= 256 * num_se
;
3325 /* The maximum size is 63.999 MB per SE. */
3326 unsigned max_size
= ((unsigned)(63.999 * 1024 * 1024) & ~255) * num_se
;
3328 /* Calculate the minimum size. */
3329 unsigned min_esgs_ring_size
= align(es
->esgs_itemsize
* gs_vertex_reuse
* wave_size
, alignment
);
3331 /* These are recommended sizes, not minimum sizes. */
3332 unsigned esgs_ring_size
=
3333 max_gs_waves
* 2 * wave_size
* es
->esgs_itemsize
* gs
->gs_input_verts_per_prim
;
3334 unsigned gsvs_ring_size
= max_gs_waves
* 2 * wave_size
* gs
->max_gsvs_emit_size
;
3336 min_esgs_ring_size
= align(min_esgs_ring_size
, alignment
);
3337 esgs_ring_size
= align(esgs_ring_size
, alignment
);
3338 gsvs_ring_size
= align(gsvs_ring_size
, alignment
);
3340 esgs_ring_size
= CLAMP(esgs_ring_size
, min_esgs_ring_size
, max_size
);
3341 gsvs_ring_size
= MIN2(gsvs_ring_size
, max_size
);
3343 /* Some rings don't have to be allocated if shaders don't use them.
3344 * (e.g. no varyings between ES and GS or GS and VS)
3346 * GFX9 doesn't have the ESGS ring.
3348 bool update_esgs
= sctx
->chip_class
<= GFX8
&& esgs_ring_size
&&
3349 (!sctx
->esgs_ring
|| sctx
->esgs_ring
->width0
< esgs_ring_size
);
3351 gsvs_ring_size
&& (!sctx
->gsvs_ring
|| sctx
->gsvs_ring
->width0
< gsvs_ring_size
);
3353 if (!update_esgs
&& !update_gsvs
)
3357 pipe_resource_reference(&sctx
->esgs_ring
, NULL
);
3359 pipe_aligned_buffer_create(sctx
->b
.screen
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
,
3360 esgs_ring_size
, sctx
->screen
->info
.pte_fragment_size
);
3361 if (!sctx
->esgs_ring
)
3366 pipe_resource_reference(&sctx
->gsvs_ring
, NULL
);
3368 pipe_aligned_buffer_create(sctx
->b
.screen
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
,
3369 gsvs_ring_size
, sctx
->screen
->info
.pte_fragment_size
);
3370 if (!sctx
->gsvs_ring
)
3374 /* Create the "cs_preamble_gs_rings" state. */
3375 pm4
= CALLOC_STRUCT(si_pm4_state
);
3379 if (sctx
->chip_class
>= GFX7
) {
3380 if (sctx
->esgs_ring
) {
3381 assert(sctx
->chip_class
<= GFX8
);
3382 si_pm4_set_reg(pm4
, R_030900_VGT_ESGS_RING_SIZE
, sctx
->esgs_ring
->width0
/ 256);
3384 if (sctx
->gsvs_ring
)
3385 si_pm4_set_reg(pm4
, R_030904_VGT_GSVS_RING_SIZE
, sctx
->gsvs_ring
->width0
/ 256);
3387 if (sctx
->esgs_ring
)
3388 si_pm4_set_reg(pm4
, R_0088C8_VGT_ESGS_RING_SIZE
, sctx
->esgs_ring
->width0
/ 256);
3389 if (sctx
->gsvs_ring
)
3390 si_pm4_set_reg(pm4
, R_0088CC_VGT_GSVS_RING_SIZE
, sctx
->gsvs_ring
->width0
/ 256);
3393 /* Set the state. */
3394 if (sctx
->cs_preamble_gs_rings
)
3395 si_pm4_free_state(sctx
, sctx
->cs_preamble_gs_rings
, ~0);
3396 sctx
->cs_preamble_gs_rings
= pm4
;
3398 if (!sctx
->cs_preamble_has_vgt_flush
) {
3399 si_cs_preamble_add_vgt_flush(sctx
);
3402 /* Flush the context to re-emit both cs_preamble states. */
3403 sctx
->initial_gfx_cs_size
= 0; /* force flush */
3404 si_flush_gfx_cs(sctx
, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW
, NULL
);
3406 /* Set ring bindings. */
3407 if (sctx
->esgs_ring
) {
3408 assert(sctx
->chip_class
<= GFX8
);
3409 si_set_ring_buffer(sctx
, SI_ES_RING_ESGS
, sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
, true,
3411 si_set_ring_buffer(sctx
, SI_GS_RING_ESGS
, sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
, false,
3414 if (sctx
->gsvs_ring
) {
3415 si_set_ring_buffer(sctx
, SI_RING_GSVS
, sctx
->gsvs_ring
, 0, sctx
->gsvs_ring
->width0
, false,
3422 static void si_shader_lock(struct si_shader
*shader
)
3424 simple_mtx_lock(&shader
->selector
->mutex
);
3425 if (shader
->previous_stage_sel
) {
3426 assert(shader
->previous_stage_sel
!= shader
->selector
);
3427 simple_mtx_lock(&shader
->previous_stage_sel
->mutex
);
3431 static void si_shader_unlock(struct si_shader
*shader
)
3433 if (shader
->previous_stage_sel
)
3434 simple_mtx_unlock(&shader
->previous_stage_sel
->mutex
);
3435 simple_mtx_unlock(&shader
->selector
->mutex
);
3439 * @returns 1 if \p sel has been updated to use a new scratch buffer
3441 * < 0 if there was a failure
3443 static int si_update_scratch_buffer(struct si_context
*sctx
, struct si_shader
*shader
)
3445 uint64_t scratch_va
= sctx
->scratch_buffer
->gpu_address
;
3450 /* This shader doesn't need a scratch buffer */
3451 if (shader
->config
.scratch_bytes_per_wave
== 0)
3454 /* Prevent race conditions when updating:
3455 * - si_shader::scratch_bo
3456 * - si_shader::binary::code
3457 * - si_shader::previous_stage::binary::code.
3459 si_shader_lock(shader
);
3461 /* This shader is already configured to use the current
3462 * scratch buffer. */
3463 if (shader
->scratch_bo
== sctx
->scratch_buffer
) {
3464 si_shader_unlock(shader
);
3468 assert(sctx
->scratch_buffer
);
3470 /* Replace the shader bo with a new bo that has the relocs applied. */
3471 if (!si_shader_binary_upload(sctx
->screen
, shader
, scratch_va
)) {
3472 si_shader_unlock(shader
);
3476 /* Update the shader state to use the new shader bo. */
3477 si_shader_init_pm4_state(sctx
->screen
, shader
);
3479 si_resource_reference(&shader
->scratch_bo
, sctx
->scratch_buffer
);
3481 si_shader_unlock(shader
);
3485 static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_shader
*shader
)
3487 return shader
? shader
->config
.scratch_bytes_per_wave
: 0;
3490 static struct si_shader
*si_get_tcs_current(struct si_context
*sctx
)
3492 if (!sctx
->tes_shader
.cso
)
3493 return NULL
; /* tessellation disabled */
3495 return sctx
->tcs_shader
.cso
? sctx
->tcs_shader
.current
: sctx
->fixed_func_tcs_shader
.current
;
3498 static bool si_update_scratch_relocs(struct si_context
*sctx
)
3500 struct si_shader
*tcs
= si_get_tcs_current(sctx
);
3503 /* Update the shaders, so that they are using the latest scratch.
3504 * The scratch buffer may have been changed since these shaders were
3505 * last used, so we still need to try to update them, even if they
3506 * require scratch buffers smaller than the current size.
3508 r
= si_update_scratch_buffer(sctx
, sctx
->ps_shader
.current
);
3512 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
3514 r
= si_update_scratch_buffer(sctx
, sctx
->gs_shader
.current
);
3518 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
3520 r
= si_update_scratch_buffer(sctx
, tcs
);
3524 si_pm4_bind_state(sctx
, hs
, tcs
->pm4
);
3526 /* VS can be bound as LS, ES, or VS. */
3527 r
= si_update_scratch_buffer(sctx
, sctx
->vs_shader
.current
);
3531 if (sctx
->vs_shader
.current
->key
.as_ls
)
3532 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
3533 else if (sctx
->vs_shader
.current
->key
.as_es
)
3534 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
3535 else if (sctx
->vs_shader
.current
->key
.as_ngg
)
3536 si_pm4_bind_state(sctx
, gs
, sctx
->vs_shader
.current
->pm4
);
3538 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
3541 /* TES can be bound as ES or VS. */
3542 r
= si_update_scratch_buffer(sctx
, sctx
->tes_shader
.current
);
3546 if (sctx
->tes_shader
.current
->key
.as_es
)
3547 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
3548 else if (sctx
->tes_shader
.current
->key
.as_ngg
)
3549 si_pm4_bind_state(sctx
, gs
, sctx
->tes_shader
.current
->pm4
);
3551 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
3557 static bool si_update_spi_tmpring_size(struct si_context
*sctx
)
3559 /* SPI_TMPRING_SIZE.WAVESIZE must be constant for each scratch buffer.
3560 * There are 2 cases to handle:
3562 * - If the current needed size is less than the maximum seen size,
3563 * use the maximum seen size, so that WAVESIZE remains the same.
3565 * - If the current needed size is greater than the maximum seen size,
3566 * the scratch buffer is reallocated, so we can increase WAVESIZE.
3568 * Shaders that set SCRATCH_EN=0 don't allocate scratch space.
3569 * Otherwise, the number of waves that can use scratch is
3570 * SPI_TMPRING_SIZE.WAVES.
3574 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->ps_shader
.current
));
3575 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->gs_shader
.current
));
3576 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->vs_shader
.current
));
3578 if (sctx
->tes_shader
.cso
) {
3579 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->tes_shader
.current
));
3580 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(si_get_tcs_current(sctx
)));
3583 sctx
->max_seen_scratch_bytes_per_wave
= MAX2(sctx
->max_seen_scratch_bytes_per_wave
, bytes
);
3585 unsigned scratch_needed_size
= sctx
->max_seen_scratch_bytes_per_wave
* sctx
->scratch_waves
;
3586 unsigned spi_tmpring_size
;
3588 if (scratch_needed_size
> 0) {
3589 if (!sctx
->scratch_buffer
|| scratch_needed_size
> sctx
->scratch_buffer
->b
.b
.width0
) {
3590 /* Create a bigger scratch buffer */
3591 si_resource_reference(&sctx
->scratch_buffer
, NULL
);
3593 sctx
->scratch_buffer
= si_aligned_buffer_create(
3594 &sctx
->screen
->b
, SI_RESOURCE_FLAG_UNMAPPABLE
, PIPE_USAGE_DEFAULT
, scratch_needed_size
,
3595 sctx
->screen
->info
.pte_fragment_size
);
3596 if (!sctx
->scratch_buffer
)
3599 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.scratch_state
);
3600 si_context_add_resource_size(sctx
, &sctx
->scratch_buffer
->b
.b
);
3603 if (!si_update_scratch_relocs(sctx
))
3607 /* The LLVM shader backend should be reporting aligned scratch_sizes. */
3608 assert((scratch_needed_size
& ~0x3FF) == scratch_needed_size
&&
3609 "scratch size should already be aligned correctly.");
3611 spi_tmpring_size
= S_0286E8_WAVES(sctx
->scratch_waves
) |
3612 S_0286E8_WAVESIZE(sctx
->max_seen_scratch_bytes_per_wave
>> 10);
3613 if (spi_tmpring_size
!= sctx
->spi_tmpring_size
) {
3614 sctx
->spi_tmpring_size
= spi_tmpring_size
;
3615 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.scratch_state
);
3620 static void si_init_tess_factor_ring(struct si_context
*sctx
)
3622 assert(!sctx
->tess_rings
);
3623 assert(((sctx
->screen
->tess_factor_ring_size
/ 4) & C_030938_SIZE
) == 0);
3625 /* The address must be aligned to 2^19, because the shader only
3626 * receives the high 13 bits.
3628 sctx
->tess_rings
= pipe_aligned_buffer_create(
3629 sctx
->b
.screen
, SI_RESOURCE_FLAG_32BIT
, PIPE_USAGE_DEFAULT
,
3630 sctx
->screen
->tess_offchip_ring_size
+ sctx
->screen
->tess_factor_ring_size
, 1 << 19);
3631 if (!sctx
->tess_rings
)
3634 si_cs_preamble_add_vgt_flush(sctx
);
3636 uint64_t factor_va
=
3637 si_resource(sctx
->tess_rings
)->gpu_address
+ sctx
->screen
->tess_offchip_ring_size
;
3639 /* Append these registers to the init config state. */
3640 if (sctx
->chip_class
>= GFX7
) {
3641 si_pm4_set_reg(sctx
->cs_preamble_state
, R_030938_VGT_TF_RING_SIZE
,
3642 S_030938_SIZE(sctx
->screen
->tess_factor_ring_size
/ 4));
3643 si_pm4_set_reg(sctx
->cs_preamble_state
, R_030940_VGT_TF_MEMORY_BASE
, factor_va
>> 8);
3644 if (sctx
->chip_class
>= GFX10
)
3645 si_pm4_set_reg(sctx
->cs_preamble_state
, R_030984_VGT_TF_MEMORY_BASE_HI_UMD
,
3646 S_030984_BASE_HI(factor_va
>> 40));
3647 else if (sctx
->chip_class
== GFX9
)
3648 si_pm4_set_reg(sctx
->cs_preamble_state
, R_030944_VGT_TF_MEMORY_BASE_HI
,
3649 S_030944_BASE_HI(factor_va
>> 40));
3650 si_pm4_set_reg(sctx
->cs_preamble_state
, R_03093C_VGT_HS_OFFCHIP_PARAM
,
3651 sctx
->screen
->vgt_hs_offchip_param
);
3653 si_pm4_set_reg(sctx
->cs_preamble_state
, R_008988_VGT_TF_RING_SIZE
,
3654 S_008988_SIZE(sctx
->screen
->tess_factor_ring_size
/ 4));
3655 si_pm4_set_reg(sctx
->cs_preamble_state
, R_0089B8_VGT_TF_MEMORY_BASE
, factor_va
>> 8);
3656 si_pm4_set_reg(sctx
->cs_preamble_state
, R_0089B0_VGT_HS_OFFCHIP_PARAM
,
3657 sctx
->screen
->vgt_hs_offchip_param
);
3660 /* Flush the context to re-emit the cs_preamble state.
3661 * This is done only once in a lifetime of a context.
3663 sctx
->initial_gfx_cs_size
= 0; /* force flush */
3664 si_flush_gfx_cs(sctx
, RADEON_FLUSH_ASYNC_START_NEXT_GFX_IB_NOW
, NULL
);
3667 static struct si_pm4_state
*si_build_vgt_shader_config(struct si_screen
*screen
,
3668 union si_vgt_stages_key key
)
3670 struct si_pm4_state
*pm4
= CALLOC_STRUCT(si_pm4_state
);
3671 uint32_t stages
= 0;
3674 stages
|= S_028B54_LS_EN(V_028B54_LS_STAGE_ON
) | S_028B54_HS_EN(1) | S_028B54_DYNAMIC_HS(1);
3677 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
) | S_028B54_GS_EN(1);
3679 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
);
3681 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_DS
);
3682 } else if (key
.u
.gs
) {
3683 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
) | S_028B54_GS_EN(1);
3684 } else if (key
.u
.ngg
) {
3685 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
);
3689 stages
|= S_028B54_PRIMGEN_EN(1) | S_028B54_GS_FAST_LAUNCH(key
.u
.ngg_gs_fast_launch
) |
3690 S_028B54_NGG_WAVE_ID_EN(key
.u
.streamout
) |
3691 S_028B54_PRIMGEN_PASSTHRU_EN(key
.u
.ngg_passthrough
);
3692 } else if (key
.u
.gs
)
3693 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
3695 if (screen
->info
.chip_class
>= GFX9
)
3696 stages
|= S_028B54_MAX_PRIMGRP_IN_WAVE(2);
3698 if (screen
->info
.chip_class
>= GFX10
&&
3699 /* GS fast launch hangs with Wave64, so always use Wave32. */
3700 (screen
->ge_wave_size
== 32 || (key
.u
.ngg
&& key
.u
.ngg_gs_fast_launch
))) {
3701 stages
|= S_028B54_HS_W32_EN(1) |
3702 S_028B54_GS_W32_EN(key
.u
.ngg
) | /* legacy GS only supports Wave64 */
3703 S_028B54_VS_W32_EN(1);
3706 si_pm4_set_reg(pm4
, R_028B54_VGT_SHADER_STAGES_EN
, stages
);
3710 static void si_update_vgt_shader_config(struct si_context
*sctx
, union si_vgt_stages_key key
)
3712 struct si_pm4_state
**pm4
= &sctx
->vgt_shader_config
[key
.index
];
3714 if (unlikely(!*pm4
))
3715 *pm4
= si_build_vgt_shader_config(sctx
->screen
, key
);
3716 si_pm4_bind_state(sctx
, vgt_shader_config
, *pm4
);
3719 bool si_update_shaders(struct si_context
*sctx
)
3721 struct pipe_context
*ctx
= (struct pipe_context
*)sctx
;
3722 struct si_compiler_ctx_state compiler_state
;
3723 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
3724 struct si_shader
*old_vs
= si_get_vs_state(sctx
);
3725 bool old_clip_disable
= old_vs
? old_vs
->key
.opt
.clip_disable
: false;
3726 struct si_shader
*old_ps
= sctx
->ps_shader
.current
;
3727 union si_vgt_stages_key key
;
3728 unsigned old_spi_shader_col_format
=
3729 old_ps
? old_ps
->key
.part
.ps
.epilog
.spi_shader_col_format
: 0;
3732 if (!sctx
->compiler
.passes
)
3733 si_init_compiler(sctx
->screen
, &sctx
->compiler
);
3735 compiler_state
.compiler
= &sctx
->compiler
;
3736 compiler_state
.debug
= sctx
->debug
;
3737 compiler_state
.is_debug_context
= sctx
->is_debug
;
3741 if (sctx
->tes_shader
.cso
)
3743 if (sctx
->gs_shader
.cso
)
3748 key
.u
.streamout
= !!si_get_vs(sctx
)->cso
->so
.num_outputs
;
3751 /* Update TCS and TES. */
3752 if (sctx
->tes_shader
.cso
) {
3753 if (!sctx
->tess_rings
) {
3754 si_init_tess_factor_ring(sctx
);
3755 if (!sctx
->tess_rings
)
3759 if (sctx
->tcs_shader
.cso
) {
3760 r
= si_shader_select(ctx
, &sctx
->tcs_shader
, key
, &compiler_state
);
3763 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
.current
->pm4
);
3765 if (!sctx
->fixed_func_tcs_shader
.cso
) {
3766 sctx
->fixed_func_tcs_shader
.cso
= si_create_fixed_func_tcs(sctx
);
3767 if (!sctx
->fixed_func_tcs_shader
.cso
)
3771 r
= si_shader_select(ctx
, &sctx
->fixed_func_tcs_shader
, key
, &compiler_state
);
3774 si_pm4_bind_state(sctx
, hs
, sctx
->fixed_func_tcs_shader
.current
->pm4
);
3777 if (!sctx
->gs_shader
.cso
|| sctx
->chip_class
<= GFX8
) {
3778 r
= si_shader_select(ctx
, &sctx
->tes_shader
, key
, &compiler_state
);
3782 if (sctx
->gs_shader
.cso
) {
3784 assert(sctx
->chip_class
<= GFX8
);
3785 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
3786 } else if (key
.u
.ngg
) {
3787 si_pm4_bind_state(sctx
, gs
, sctx
->tes_shader
.current
->pm4
);
3789 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
3793 if (sctx
->chip_class
<= GFX8
)
3794 si_pm4_bind_state(sctx
, ls
, NULL
);
3795 si_pm4_bind_state(sctx
, hs
, NULL
);
3799 if (sctx
->gs_shader
.cso
) {
3800 r
= si_shader_select(ctx
, &sctx
->gs_shader
, key
, &compiler_state
);
3803 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
3805 si_pm4_bind_state(sctx
, vs
, sctx
->gs_shader
.cso
->gs_copy_shader
->pm4
);
3807 if (!si_update_gs_ring_buffers(sctx
))
3810 si_pm4_bind_state(sctx
, vs
, NULL
);
3814 si_pm4_bind_state(sctx
, gs
, NULL
);
3815 if (sctx
->chip_class
<= GFX8
)
3816 si_pm4_bind_state(sctx
, es
, NULL
);
3821 if ((!key
.u
.tess
&& !key
.u
.gs
) || sctx
->chip_class
<= GFX8
) {
3822 r
= si_shader_select(ctx
, &sctx
->vs_shader
, key
, &compiler_state
);
3826 if (!key
.u
.tess
&& !key
.u
.gs
) {
3828 si_pm4_bind_state(sctx
, gs
, sctx
->vs_shader
.current
->pm4
);
3829 si_pm4_bind_state(sctx
, vs
, NULL
);
3831 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
3833 } else if (sctx
->tes_shader
.cso
) {
3834 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
3836 assert(sctx
->gs_shader
.cso
);
3837 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
3841 /* This must be done after the shader variant is selected. */
3843 struct si_shader
*vs
= si_get_vs(sctx
)->current
;
3845 key
.u
.ngg_passthrough
= gfx10_is_ngg_passthrough(vs
);
3846 key
.u
.ngg_gs_fast_launch
= !!(vs
->key
.opt
.ngg_culling
& SI_NGG_CULL_GS_FAST_LAUNCH_ALL
);
3849 si_update_vgt_shader_config(sctx
, key
);
3851 if (old_clip_disable
!= si_get_vs_state(sctx
)->key
.opt
.clip_disable
)
3852 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.clip_regs
);
3854 if (sctx
->ps_shader
.cso
) {
3855 unsigned db_shader_control
;
3857 r
= si_shader_select(ctx
, &sctx
->ps_shader
, key
, &compiler_state
);
3860 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
3862 db_shader_control
= sctx
->ps_shader
.cso
->db_shader_control
|
3863 S_02880C_KILL_ENABLE(si_get_alpha_test_func(sctx
) != PIPE_FUNC_ALWAYS
);
3865 if (si_pm4_state_changed(sctx
, ps
) || si_pm4_state_changed(sctx
, vs
) ||
3866 (key
.u
.ngg
&& si_pm4_state_changed(sctx
, gs
)) ||
3867 sctx
->sprite_coord_enable
!= rs
->sprite_coord_enable
||
3868 sctx
->flatshade
!= rs
->flatshade
) {
3869 sctx
->sprite_coord_enable
= rs
->sprite_coord_enable
;
3870 sctx
->flatshade
= rs
->flatshade
;
3871 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.spi_map
);
3874 if (sctx
->screen
->info
.rbplus_allowed
&& si_pm4_state_changed(sctx
, ps
) &&
3875 (!old_ps
|| old_spi_shader_col_format
!=
3876 sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.spi_shader_col_format
))
3877 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.cb_render_state
);
3879 if (sctx
->ps_db_shader_control
!= db_shader_control
) {
3880 sctx
->ps_db_shader_control
= db_shader_control
;
3881 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
3882 if (sctx
->screen
->dpbb_allowed
)
3883 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.dpbb_state
);
3886 if (sctx
->smoothing_enabled
!=
3887 sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.poly_line_smoothing
) {
3888 sctx
->smoothing_enabled
= sctx
->ps_shader
.current
->key
.part
.ps
.epilog
.poly_line_smoothing
;
3889 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_config
);
3891 if (sctx
->chip_class
== GFX6
)
3892 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.db_render_state
);
3894 if (sctx
->framebuffer
.nr_samples
<= 1)
3895 si_mark_atom_dirty(sctx
, &sctx
->atoms
.s
.msaa_sample_locs
);
3899 if (si_pm4_state_enabled_and_changed(sctx
, ls
) || si_pm4_state_enabled_and_changed(sctx
, hs
) ||
3900 si_pm4_state_enabled_and_changed(sctx
, es
) || si_pm4_state_enabled_and_changed(sctx
, gs
) ||
3901 si_pm4_state_enabled_and_changed(sctx
, vs
) || si_pm4_state_enabled_and_changed(sctx
, ps
)) {
3902 if (!si_update_spi_tmpring_size(sctx
))
3906 if (sctx
->chip_class
>= GFX7
) {
3907 if (si_pm4_state_enabled_and_changed(sctx
, ls
))
3908 sctx
->prefetch_L2_mask
|= SI_PREFETCH_LS
;
3909 else if (!sctx
->queued
.named
.ls
)
3910 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_LS
;
3912 if (si_pm4_state_enabled_and_changed(sctx
, hs
))
3913 sctx
->prefetch_L2_mask
|= SI_PREFETCH_HS
;
3914 else if (!sctx
->queued
.named
.hs
)
3915 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_HS
;
3917 if (si_pm4_state_enabled_and_changed(sctx
, es
))
3918 sctx
->prefetch_L2_mask
|= SI_PREFETCH_ES
;
3919 else if (!sctx
->queued
.named
.es
)
3920 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_ES
;
3922 if (si_pm4_state_enabled_and_changed(sctx
, gs
))
3923 sctx
->prefetch_L2_mask
|= SI_PREFETCH_GS
;
3924 else if (!sctx
->queued
.named
.gs
)
3925 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_GS
;
3927 if (si_pm4_state_enabled_and_changed(sctx
, vs
))
3928 sctx
->prefetch_L2_mask
|= SI_PREFETCH_VS
;
3929 else if (!sctx
->queued
.named
.vs
)
3930 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_VS
;
3932 if (si_pm4_state_enabled_and_changed(sctx
, ps
))
3933 sctx
->prefetch_L2_mask
|= SI_PREFETCH_PS
;
3934 else if (!sctx
->queued
.named
.ps
)
3935 sctx
->prefetch_L2_mask
&= ~SI_PREFETCH_PS
;
3938 sctx
->do_update_shaders
= false;
3942 static void si_emit_scratch_state(struct si_context
*sctx
)
3944 struct radeon_cmdbuf
*cs
= sctx
->gfx_cs
;
3946 radeon_set_context_reg(cs
, R_0286E8_SPI_TMPRING_SIZE
, sctx
->spi_tmpring_size
);
3948 if (sctx
->scratch_buffer
) {
3949 radeon_add_to_buffer_list(sctx
, sctx
->gfx_cs
, sctx
->scratch_buffer
, RADEON_USAGE_READWRITE
,
3950 RADEON_PRIO_SCRATCH_BUFFER
);
3954 void si_init_screen_live_shader_cache(struct si_screen
*sscreen
)
3956 util_live_shader_cache_init(&sscreen
->live_shader_cache
, si_create_shader_selector
,
3957 si_destroy_shader_selector
);
3960 void si_init_shader_functions(struct si_context
*sctx
)
3962 sctx
->atoms
.s
.spi_map
.emit
= si_emit_spi_map
;
3963 sctx
->atoms
.s
.scratch_state
.emit
= si_emit_scratch_state
;
3965 sctx
->b
.create_vs_state
= si_create_shader
;
3966 sctx
->b
.create_tcs_state
= si_create_shader
;
3967 sctx
->b
.create_tes_state
= si_create_shader
;
3968 sctx
->b
.create_gs_state
= si_create_shader
;
3969 sctx
->b
.create_fs_state
= si_create_shader
;
3971 sctx
->b
.bind_vs_state
= si_bind_vs_shader
;
3972 sctx
->b
.bind_tcs_state
= si_bind_tcs_shader
;
3973 sctx
->b
.bind_tes_state
= si_bind_tes_shader
;
3974 sctx
->b
.bind_gs_state
= si_bind_gs_shader
;
3975 sctx
->b
.bind_fs_state
= si_bind_ps_shader
;
3977 sctx
->b
.delete_vs_state
= si_delete_shader_selector
;
3978 sctx
->b
.delete_tcs_state
= si_delete_shader_selector
;
3979 sctx
->b
.delete_tes_state
= si_delete_shader_selector
;
3980 sctx
->b
.delete_gs_state
= si_delete_shader_selector
;
3981 sctx
->b
.delete_fs_state
= si_delete_shader_selector
;