2 * Copyright 2012 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 * Christian König <christian.koenig@amd.com>
25 * Marek Olšák <maraeo@gmail.com>
29 #include "si_shader.h"
31 #include "radeon/r600_cs.h"
33 #include "tgsi/tgsi_parse.h"
34 #include "tgsi/tgsi_ureg.h"
35 #include "util/hash_table.h"
36 #include "util/u_hash.h"
37 #include "util/u_memory.h"
38 #include "util/u_prim.h"
39 #include "util/u_simple_shaders.h"
44 * Return the TGSI binary in a buffer. The first 4 bytes contain its size as
47 static void *si_get_tgsi_binary(struct si_shader_selector
*sel
)
49 unsigned tgsi_size
= tgsi_num_tokens(sel
->tokens
) *
50 sizeof(struct tgsi_token
);
51 unsigned size
= 4 + tgsi_size
+ sizeof(sel
->so
);
52 char *result
= (char*)MALLOC(size
);
57 *((uint32_t*)result
) = size
;
58 memcpy(result
+ 4, sel
->tokens
, tgsi_size
);
59 memcpy(result
+ 4 + tgsi_size
, &sel
->so
, sizeof(sel
->so
));
63 /** Copy "data" to "ptr" and return the next dword following copied data. */
64 static uint32_t *write_data(uint32_t *ptr
, const void *data
, unsigned size
)
66 memcpy(ptr
, data
, size
);
67 ptr
+= DIV_ROUND_UP(size
, 4);
71 /** Read data from "ptr". Return the next dword following the data. */
72 static uint32_t *read_data(uint32_t *ptr
, void *data
, unsigned size
)
74 memcpy(data
, ptr
, size
);
75 ptr
+= DIV_ROUND_UP(size
, 4);
80 * Write the size as uint followed by the data. Return the next dword
81 * following the copied data.
83 static uint32_t *write_chunk(uint32_t *ptr
, const void *data
, unsigned size
)
86 return write_data(ptr
, data
, size
);
90 * Read the size as uint followed by the data. Return both via parameters.
91 * Return the next dword following the data.
93 static uint32_t *read_chunk(uint32_t *ptr
, void **data
, unsigned *size
)
96 assert(*data
== NULL
);
97 *data
= malloc(*size
);
98 return read_data(ptr
, *data
, *size
);
102 * Return the shader binary in a buffer. The first 4 bytes contain its size
105 static void *si_get_shader_binary(struct si_shader
*shader
)
107 /* There is always a size of data followed by the data itself. */
108 unsigned relocs_size
= shader
->binary
.reloc_count
*
109 sizeof(shader
->binary
.relocs
[0]);
110 unsigned disasm_size
= strlen(shader
->binary
.disasm_string
) + 1;
113 4 + /* CRC32 of the data below */
114 align(sizeof(shader
->config
), 4) +
115 align(sizeof(shader
->info
), 4) +
116 4 + align(shader
->binary
.code_size
, 4) +
117 4 + align(shader
->binary
.rodata_size
, 4) +
118 4 + align(relocs_size
, 4) +
119 4 + align(disasm_size
, 4);
120 void *buffer
= CALLOC(1, size
);
121 uint32_t *ptr
= (uint32_t*)buffer
;
127 ptr
++; /* CRC32 is calculated at the end. */
129 ptr
= write_data(ptr
, &shader
->config
, sizeof(shader
->config
));
130 ptr
= write_data(ptr
, &shader
->info
, sizeof(shader
->info
));
131 ptr
= write_chunk(ptr
, shader
->binary
.code
, shader
->binary
.code_size
);
132 ptr
= write_chunk(ptr
, shader
->binary
.rodata
, shader
->binary
.rodata_size
);
133 ptr
= write_chunk(ptr
, shader
->binary
.relocs
, relocs_size
);
134 ptr
= write_chunk(ptr
, shader
->binary
.disasm_string
, disasm_size
);
135 assert((char *)ptr
- (char *)buffer
== size
);
138 ptr
= (uint32_t*)buffer
;
140 *ptr
= util_hash_crc32(ptr
+ 1, size
- 8);
145 static bool si_load_shader_binary(struct si_shader
*shader
, void *binary
)
147 uint32_t *ptr
= (uint32_t*)binary
;
148 uint32_t size
= *ptr
++;
149 uint32_t crc32
= *ptr
++;
152 if (util_hash_crc32(ptr
, size
- 8) != crc32
) {
153 fprintf(stderr
, "radeonsi: binary shader has invalid CRC32\n");
157 ptr
= read_data(ptr
, &shader
->config
, sizeof(shader
->config
));
158 ptr
= read_data(ptr
, &shader
->info
, sizeof(shader
->info
));
159 ptr
= read_chunk(ptr
, (void**)&shader
->binary
.code
,
160 &shader
->binary
.code_size
);
161 ptr
= read_chunk(ptr
, (void**)&shader
->binary
.rodata
,
162 &shader
->binary
.rodata_size
);
163 ptr
= read_chunk(ptr
, (void**)&shader
->binary
.relocs
, &chunk_size
);
164 shader
->binary
.reloc_count
= chunk_size
/ sizeof(shader
->binary
.relocs
[0]);
165 ptr
= read_chunk(ptr
, (void**)&shader
->binary
.disasm_string
, &chunk_size
);
171 * Insert a shader into the cache. It's assumed the shader is not in the cache.
172 * Use si_shader_cache_load_shader before calling this.
174 * Returns false on failure, in which case the tgsi_binary should be freed.
176 static bool si_shader_cache_insert_shader(struct si_screen
*sscreen
,
178 struct si_shader
*shader
)
180 void *hw_binary
= si_get_shader_binary(shader
);
185 if (_mesa_hash_table_insert(sscreen
->shader_cache
, tgsi_binary
,
186 hw_binary
) == NULL
) {
194 static bool si_shader_cache_load_shader(struct si_screen
*sscreen
,
196 struct si_shader
*shader
)
198 struct hash_entry
*entry
=
199 _mesa_hash_table_search(sscreen
->shader_cache
, tgsi_binary
);
203 return si_load_shader_binary(shader
, entry
->data
);
206 static uint32_t si_shader_cache_key_hash(const void *key
)
208 /* The first dword is the key size. */
209 return util_hash_crc32(key
, *(uint32_t*)key
);
212 static bool si_shader_cache_key_equals(const void *a
, const void *b
)
214 uint32_t *keya
= (uint32_t*)a
;
215 uint32_t *keyb
= (uint32_t*)b
;
217 /* The first dword is the key size. */
221 return memcmp(keya
, keyb
, *keya
) == 0;
224 static void si_destroy_shader_cache_entry(struct hash_entry
*entry
)
226 FREE((void*)entry
->key
);
230 bool si_init_shader_cache(struct si_screen
*sscreen
)
232 pipe_mutex_init(sscreen
->shader_cache_mutex
);
233 sscreen
->shader_cache
=
234 _mesa_hash_table_create(NULL
,
235 si_shader_cache_key_hash
,
236 si_shader_cache_key_equals
);
237 return sscreen
->shader_cache
!= NULL
;
240 void si_destroy_shader_cache(struct si_screen
*sscreen
)
242 if (sscreen
->shader_cache
)
243 _mesa_hash_table_destroy(sscreen
->shader_cache
,
244 si_destroy_shader_cache_entry
);
245 pipe_mutex_destroy(sscreen
->shader_cache_mutex
);
250 static void si_set_tesseval_regs(struct si_shader
*shader
,
251 struct si_pm4_state
*pm4
)
253 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
254 unsigned tes_prim_mode
= info
->properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
255 unsigned tes_spacing
= info
->properties
[TGSI_PROPERTY_TES_SPACING
];
256 bool tes_vertex_order_cw
= info
->properties
[TGSI_PROPERTY_TES_VERTEX_ORDER_CW
];
257 bool tes_point_mode
= info
->properties
[TGSI_PROPERTY_TES_POINT_MODE
];
258 unsigned type
, partitioning
, topology
;
260 switch (tes_prim_mode
) {
261 case PIPE_PRIM_LINES
:
262 type
= V_028B6C_TESS_ISOLINE
;
264 case PIPE_PRIM_TRIANGLES
:
265 type
= V_028B6C_TESS_TRIANGLE
;
267 case PIPE_PRIM_QUADS
:
268 type
= V_028B6C_TESS_QUAD
;
275 switch (tes_spacing
) {
276 case PIPE_TESS_SPACING_FRACTIONAL_ODD
:
277 partitioning
= V_028B6C_PART_FRAC_ODD
;
279 case PIPE_TESS_SPACING_FRACTIONAL_EVEN
:
280 partitioning
= V_028B6C_PART_FRAC_EVEN
;
282 case PIPE_TESS_SPACING_EQUAL
:
283 partitioning
= V_028B6C_PART_INTEGER
;
291 topology
= V_028B6C_OUTPUT_POINT
;
292 else if (tes_prim_mode
== PIPE_PRIM_LINES
)
293 topology
= V_028B6C_OUTPUT_LINE
;
294 else if (tes_vertex_order_cw
)
295 /* for some reason, this must be the other way around */
296 topology
= V_028B6C_OUTPUT_TRIANGLE_CCW
;
298 topology
= V_028B6C_OUTPUT_TRIANGLE_CW
;
300 si_pm4_set_reg(pm4
, R_028B6C_VGT_TF_PARAM
,
301 S_028B6C_TYPE(type
) |
302 S_028B6C_PARTITIONING(partitioning
) |
303 S_028B6C_TOPOLOGY(topology
));
306 static void si_shader_ls(struct si_shader
*shader
)
308 struct si_pm4_state
*pm4
;
309 unsigned num_sgprs
, num_user_sgprs
;
310 unsigned vgpr_comp_cnt
;
313 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
317 va
= shader
->bo
->gpu_address
;
318 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
320 /* We need at least 2 components for LS.
321 * VGPR0-3: (VertexID, RelAutoindex, ???, InstanceID). */
322 vgpr_comp_cnt
= shader
->info
.uses_instanceid
? 3 : 1;
324 num_user_sgprs
= SI_LS_NUM_USER_SGPR
;
325 num_sgprs
= shader
->config
.num_sgprs
;
326 if (num_user_sgprs
> num_sgprs
) {
327 /* Last 2 reserved SGPRs are used for VCC */
328 num_sgprs
= num_user_sgprs
+ 2;
330 assert(num_sgprs
<= 104);
332 si_pm4_set_reg(pm4
, R_00B520_SPI_SHADER_PGM_LO_LS
, va
>> 8);
333 si_pm4_set_reg(pm4
, R_00B524_SPI_SHADER_PGM_HI_LS
, va
>> 40);
335 shader
->config
.rsrc1
= S_00B528_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
336 S_00B528_SGPRS((num_sgprs
- 1) / 8) |
337 S_00B528_VGPR_COMP_CNT(vgpr_comp_cnt
) |
338 S_00B528_DX10_CLAMP(1) |
339 S_00B528_FLOAT_MODE(shader
->config
.float_mode
);
340 shader
->config
.rsrc2
= S_00B52C_USER_SGPR(num_user_sgprs
) |
341 S_00B52C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0);
344 static void si_shader_hs(struct si_shader
*shader
)
346 struct si_pm4_state
*pm4
;
347 unsigned num_sgprs
, num_user_sgprs
;
350 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
354 va
= shader
->bo
->gpu_address
;
355 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
357 num_user_sgprs
= SI_TCS_NUM_USER_SGPR
;
358 num_sgprs
= shader
->config
.num_sgprs
;
359 /* One SGPR after user SGPRs is pre-loaded with tessellation factor
361 if ((num_user_sgprs
+ 1) > num_sgprs
) {
362 /* Last 2 reserved SGPRs are used for VCC */
363 num_sgprs
= num_user_sgprs
+ 1 + 2;
365 assert(num_sgprs
<= 104);
367 si_pm4_set_reg(pm4
, R_00B420_SPI_SHADER_PGM_LO_HS
, va
>> 8);
368 si_pm4_set_reg(pm4
, R_00B424_SPI_SHADER_PGM_HI_HS
, va
>> 40);
369 si_pm4_set_reg(pm4
, R_00B428_SPI_SHADER_PGM_RSRC1_HS
,
370 S_00B428_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
371 S_00B428_SGPRS((num_sgprs
- 1) / 8) |
372 S_00B428_DX10_CLAMP(1) |
373 S_00B428_FLOAT_MODE(shader
->config
.float_mode
));
374 si_pm4_set_reg(pm4
, R_00B42C_SPI_SHADER_PGM_RSRC2_HS
,
375 S_00B42C_USER_SGPR(num_user_sgprs
) |
376 S_00B42C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
379 static void si_shader_es(struct si_shader
*shader
)
381 struct si_pm4_state
*pm4
;
382 unsigned num_sgprs
, num_user_sgprs
;
383 unsigned vgpr_comp_cnt
;
386 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
391 va
= shader
->bo
->gpu_address
;
392 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
394 if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
395 vgpr_comp_cnt
= shader
->info
.uses_instanceid
? 3 : 0;
396 num_user_sgprs
= SI_ES_NUM_USER_SGPR
;
397 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
398 vgpr_comp_cnt
= 3; /* all components are needed for TES */
399 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
401 unreachable("invalid shader selector type");
403 num_sgprs
= shader
->config
.num_sgprs
;
404 /* One SGPR after user SGPRs is pre-loaded with es2gs_offset */
405 if ((num_user_sgprs
+ 1) > num_sgprs
) {
406 /* Last 2 reserved SGPRs are used for VCC */
407 num_sgprs
= num_user_sgprs
+ 1 + 2;
409 assert(num_sgprs
<= 104);
411 si_pm4_set_reg(pm4
, R_028AAC_VGT_ESGS_RING_ITEMSIZE
,
412 shader
->selector
->esgs_itemsize
/ 4);
413 si_pm4_set_reg(pm4
, R_00B320_SPI_SHADER_PGM_LO_ES
, va
>> 8);
414 si_pm4_set_reg(pm4
, R_00B324_SPI_SHADER_PGM_HI_ES
, va
>> 40);
415 si_pm4_set_reg(pm4
, R_00B328_SPI_SHADER_PGM_RSRC1_ES
,
416 S_00B328_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
417 S_00B328_SGPRS((num_sgprs
- 1) / 8) |
418 S_00B328_VGPR_COMP_CNT(vgpr_comp_cnt
) |
419 S_00B328_DX10_CLAMP(1) |
420 S_00B328_FLOAT_MODE(shader
->config
.float_mode
));
421 si_pm4_set_reg(pm4
, R_00B32C_SPI_SHADER_PGM_RSRC2_ES
,
422 S_00B32C_USER_SGPR(num_user_sgprs
) |
423 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
425 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
426 si_set_tesseval_regs(shader
, pm4
);
430 * Calculate the appropriate setting of VGT_GS_MODE when \p shader is a
433 static uint32_t si_vgt_gs_mode(struct si_shader
*shader
)
435 unsigned gs_max_vert_out
= shader
->selector
->gs_max_out_vertices
;
438 if (gs_max_vert_out
<= 128) {
439 cut_mode
= V_028A40_GS_CUT_128
;
440 } else if (gs_max_vert_out
<= 256) {
441 cut_mode
= V_028A40_GS_CUT_256
;
442 } else if (gs_max_vert_out
<= 512) {
443 cut_mode
= V_028A40_GS_CUT_512
;
445 assert(gs_max_vert_out
<= 1024);
446 cut_mode
= V_028A40_GS_CUT_1024
;
449 return S_028A40_MODE(V_028A40_GS_SCENARIO_G
) |
450 S_028A40_CUT_MODE(cut_mode
)|
451 S_028A40_ES_WRITE_OPTIMIZE(1) |
452 S_028A40_GS_WRITE_OPTIMIZE(1);
455 static void si_shader_gs(struct si_shader
*shader
)
457 unsigned gs_vert_itemsize
= shader
->selector
->gsvs_vertex_size
;
458 unsigned gsvs_itemsize
= shader
->selector
->max_gsvs_emit_size
>> 2;
459 unsigned gs_num_invocations
= shader
->selector
->gs_num_invocations
;
460 struct si_pm4_state
*pm4
;
461 unsigned num_sgprs
, num_user_sgprs
;
463 unsigned max_stream
= shader
->selector
->max_gs_stream
;
465 /* The GSVS_RING_ITEMSIZE register takes 15 bits */
466 assert(gsvs_itemsize
< (1 << 15));
468 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
473 si_pm4_set_reg(pm4
, R_028A40_VGT_GS_MODE
, si_vgt_gs_mode(shader
));
475 si_pm4_set_reg(pm4
, R_028A60_VGT_GSVS_RING_OFFSET_1
, gsvs_itemsize
);
476 si_pm4_set_reg(pm4
, R_028A64_VGT_GSVS_RING_OFFSET_2
, gsvs_itemsize
* ((max_stream
>= 2) ? 2 : 1));
477 si_pm4_set_reg(pm4
, R_028A68_VGT_GSVS_RING_OFFSET_3
, gsvs_itemsize
* ((max_stream
>= 3) ? 3 : 1));
479 si_pm4_set_reg(pm4
, R_028AB0_VGT_GSVS_RING_ITEMSIZE
, gsvs_itemsize
* (max_stream
+ 1));
481 si_pm4_set_reg(pm4
, R_028B38_VGT_GS_MAX_VERT_OUT
, shader
->selector
->gs_max_out_vertices
);
483 si_pm4_set_reg(pm4
, R_028B5C_VGT_GS_VERT_ITEMSIZE
, gs_vert_itemsize
>> 2);
484 si_pm4_set_reg(pm4
, R_028B60_VGT_GS_VERT_ITEMSIZE_1
, (max_stream
>= 1) ? gs_vert_itemsize
>> 2 : 0);
485 si_pm4_set_reg(pm4
, R_028B64_VGT_GS_VERT_ITEMSIZE_2
, (max_stream
>= 2) ? gs_vert_itemsize
>> 2 : 0);
486 si_pm4_set_reg(pm4
, R_028B68_VGT_GS_VERT_ITEMSIZE_3
, (max_stream
>= 3) ? gs_vert_itemsize
>> 2 : 0);
488 si_pm4_set_reg(pm4
, R_028B90_VGT_GS_INSTANCE_CNT
,
489 S_028B90_CNT(MIN2(gs_num_invocations
, 127)) |
490 S_028B90_ENABLE(gs_num_invocations
> 0));
492 va
= shader
->bo
->gpu_address
;
493 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
494 si_pm4_set_reg(pm4
, R_00B220_SPI_SHADER_PGM_LO_GS
, va
>> 8);
495 si_pm4_set_reg(pm4
, R_00B224_SPI_SHADER_PGM_HI_GS
, va
>> 40);
497 num_user_sgprs
= SI_GS_NUM_USER_SGPR
;
498 num_sgprs
= shader
->config
.num_sgprs
;
499 /* Two SGPRs after user SGPRs are pre-loaded with gs2vs_offset, gs_wave_id */
500 if ((num_user_sgprs
+ 2) > num_sgprs
) {
501 /* Last 2 reserved SGPRs are used for VCC */
502 num_sgprs
= num_user_sgprs
+ 2 + 2;
504 assert(num_sgprs
<= 104);
506 si_pm4_set_reg(pm4
, R_00B228_SPI_SHADER_PGM_RSRC1_GS
,
507 S_00B228_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
508 S_00B228_SGPRS((num_sgprs
- 1) / 8) |
509 S_00B228_DX10_CLAMP(1) |
510 S_00B228_FLOAT_MODE(shader
->config
.float_mode
));
511 si_pm4_set_reg(pm4
, R_00B22C_SPI_SHADER_PGM_RSRC2_GS
,
512 S_00B22C_USER_SGPR(num_user_sgprs
) |
513 S_00B22C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
517 * Compute the state for \p shader, which will run as a vertex shader on the
520 * If \p gs is non-NULL, it points to the geometry shader for which this shader
521 * is the copy shader.
523 static void si_shader_vs(struct si_shader
*shader
, struct si_shader
*gs
)
525 struct si_pm4_state
*pm4
;
526 unsigned num_sgprs
, num_user_sgprs
;
527 unsigned nparams
, vgpr_comp_cnt
;
529 unsigned window_space
=
530 shader
->selector
->info
.properties
[TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION
];
531 bool enable_prim_id
= si_vs_exports_prim_id(shader
);
533 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
538 /* We always write VGT_GS_MODE in the VS state, because every switch
539 * between different shader pipelines involving a different GS or no
540 * GS at all involves a switch of the VS (different GS use different
541 * copy shaders). On the other hand, when the API switches from a GS to
542 * no GS and then back to the same GS used originally, the GS state is
546 si_pm4_set_reg(pm4
, R_028A40_VGT_GS_MODE
,
547 S_028A40_MODE(enable_prim_id
? V_028A40_GS_SCENARIO_A
: 0));
548 si_pm4_set_reg(pm4
, R_028A84_VGT_PRIMITIVEID_EN
, enable_prim_id
);
550 si_pm4_set_reg(pm4
, R_028A40_VGT_GS_MODE
, si_vgt_gs_mode(gs
));
551 si_pm4_set_reg(pm4
, R_028A84_VGT_PRIMITIVEID_EN
, 0);
554 va
= shader
->bo
->gpu_address
;
555 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
558 vgpr_comp_cnt
= 0; /* only VertexID is needed for GS-COPY. */
559 num_user_sgprs
= SI_GSCOPY_NUM_USER_SGPR
;
560 } else if (shader
->selector
->type
== PIPE_SHADER_VERTEX
) {
561 vgpr_comp_cnt
= shader
->info
.uses_instanceid
? 3 : (enable_prim_id
? 2 : 0);
562 num_user_sgprs
= SI_VS_NUM_USER_SGPR
;
563 } else if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
) {
564 vgpr_comp_cnt
= 3; /* all components are needed for TES */
565 num_user_sgprs
= SI_TES_NUM_USER_SGPR
;
567 unreachable("invalid shader selector type");
569 num_sgprs
= shader
->config
.num_sgprs
;
570 if (num_user_sgprs
> num_sgprs
) {
571 /* Last 2 reserved SGPRs are used for VCC */
572 num_sgprs
= num_user_sgprs
+ 2;
574 assert(num_sgprs
<= 104);
576 /* VS is required to export at least one param. */
577 nparams
= MAX2(shader
->info
.nr_param_exports
, 1);
578 si_pm4_set_reg(pm4
, R_0286C4_SPI_VS_OUT_CONFIG
,
579 S_0286C4_VS_EXPORT_COUNT(nparams
- 1));
581 si_pm4_set_reg(pm4
, R_02870C_SPI_SHADER_POS_FORMAT
,
582 S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP
) |
583 S_02870C_POS1_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 1 ?
584 V_02870C_SPI_SHADER_4COMP
:
585 V_02870C_SPI_SHADER_NONE
) |
586 S_02870C_POS2_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 2 ?
587 V_02870C_SPI_SHADER_4COMP
:
588 V_02870C_SPI_SHADER_NONE
) |
589 S_02870C_POS3_EXPORT_FORMAT(shader
->info
.nr_pos_exports
> 3 ?
590 V_02870C_SPI_SHADER_4COMP
:
591 V_02870C_SPI_SHADER_NONE
));
593 si_pm4_set_reg(pm4
, R_00B120_SPI_SHADER_PGM_LO_VS
, va
>> 8);
594 si_pm4_set_reg(pm4
, R_00B124_SPI_SHADER_PGM_HI_VS
, va
>> 40);
595 si_pm4_set_reg(pm4
, R_00B128_SPI_SHADER_PGM_RSRC1_VS
,
596 S_00B128_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
597 S_00B128_SGPRS((num_sgprs
- 1) / 8) |
598 S_00B128_VGPR_COMP_CNT(vgpr_comp_cnt
) |
599 S_00B128_DX10_CLAMP(1) |
600 S_00B128_FLOAT_MODE(shader
->config
.float_mode
));
601 si_pm4_set_reg(pm4
, R_00B12C_SPI_SHADER_PGM_RSRC2_VS
,
602 S_00B12C_USER_SGPR(num_user_sgprs
) |
603 S_00B12C_SO_BASE0_EN(!!shader
->selector
->so
.stride
[0]) |
604 S_00B12C_SO_BASE1_EN(!!shader
->selector
->so
.stride
[1]) |
605 S_00B12C_SO_BASE2_EN(!!shader
->selector
->so
.stride
[2]) |
606 S_00B12C_SO_BASE3_EN(!!shader
->selector
->so
.stride
[3]) |
607 S_00B12C_SO_EN(!!shader
->selector
->so
.num_outputs
) |
608 S_00B12C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
610 si_pm4_set_reg(pm4
, R_028818_PA_CL_VTE_CNTL
,
611 S_028818_VTX_XY_FMT(1) | S_028818_VTX_Z_FMT(1));
613 si_pm4_set_reg(pm4
, R_028818_PA_CL_VTE_CNTL
,
614 S_028818_VTX_W0_FMT(1) |
615 S_028818_VPORT_X_SCALE_ENA(1) | S_028818_VPORT_X_OFFSET_ENA(1) |
616 S_028818_VPORT_Y_SCALE_ENA(1) | S_028818_VPORT_Y_OFFSET_ENA(1) |
617 S_028818_VPORT_Z_SCALE_ENA(1) | S_028818_VPORT_Z_OFFSET_ENA(1));
619 if (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
)
620 si_set_tesseval_regs(shader
, pm4
);
623 static unsigned si_get_ps_num_interp(struct si_shader
*ps
)
625 struct tgsi_shader_info
*info
= &ps
->selector
->info
;
626 unsigned num_colors
= !!(info
->colors_read
& 0x0f) +
627 !!(info
->colors_read
& 0xf0);
628 unsigned num_interp
= ps
->selector
->info
.num_inputs
+
629 (ps
->key
.ps
.prolog
.color_two_side
? num_colors
: 0);
631 assert(num_interp
<= 32);
632 return MIN2(num_interp
, 32);
635 static unsigned si_get_spi_shader_col_format(struct si_shader
*shader
)
637 unsigned value
= shader
->key
.ps
.epilog
.spi_shader_col_format
;
638 unsigned i
, num_targets
= (util_last_bit(value
) + 3) / 4;
640 /* If the i-th target format is set, all previous target formats must
641 * be non-zero to avoid hangs.
643 for (i
= 0; i
< num_targets
; i
++)
644 if (!(value
& (0xf << (i
* 4))))
645 value
|= V_028714_SPI_SHADER_32_R
<< (i
* 4);
650 static unsigned si_get_cb_shader_mask(unsigned spi_shader_col_format
)
652 unsigned i
, cb_shader_mask
= 0;
654 for (i
= 0; i
< 8; i
++) {
655 switch ((spi_shader_col_format
>> (i
* 4)) & 0xf) {
656 case V_028714_SPI_SHADER_ZERO
:
658 case V_028714_SPI_SHADER_32_R
:
659 cb_shader_mask
|= 0x1 << (i
* 4);
661 case V_028714_SPI_SHADER_32_GR
:
662 cb_shader_mask
|= 0x3 << (i
* 4);
664 case V_028714_SPI_SHADER_32_AR
:
665 cb_shader_mask
|= 0x9 << (i
* 4);
667 case V_028714_SPI_SHADER_FP16_ABGR
:
668 case V_028714_SPI_SHADER_UNORM16_ABGR
:
669 case V_028714_SPI_SHADER_SNORM16_ABGR
:
670 case V_028714_SPI_SHADER_UINT16_ABGR
:
671 case V_028714_SPI_SHADER_SINT16_ABGR
:
672 case V_028714_SPI_SHADER_32_ABGR
:
673 cb_shader_mask
|= 0xf << (i
* 4);
679 return cb_shader_mask
;
682 static void si_shader_ps(struct si_shader
*shader
)
684 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
685 struct si_pm4_state
*pm4
;
686 unsigned spi_ps_in_control
, spi_shader_col_format
, cb_shader_mask
;
687 unsigned num_sgprs
, num_user_sgprs
;
688 unsigned spi_baryc_cntl
= S_0286E0_FRONT_FACE_ALL_BITS(1);
691 unsigned input_ena
= shader
->config
.spi_ps_input_ena
;
693 /* we need to enable at least one of them, otherwise we hang the GPU */
694 assert(G_0286CC_PERSP_SAMPLE_ENA(input_ena
) ||
695 G_0286CC_PERSP_CENTER_ENA(input_ena
) ||
696 G_0286CC_PERSP_CENTROID_ENA(input_ena
) ||
697 G_0286CC_PERSP_PULL_MODEL_ENA(input_ena
) ||
698 G_0286CC_LINEAR_SAMPLE_ENA(input_ena
) ||
699 G_0286CC_LINEAR_CENTER_ENA(input_ena
) ||
700 G_0286CC_LINEAR_CENTROID_ENA(input_ena
) ||
701 G_0286CC_LINE_STIPPLE_TEX_ENA(input_ena
));
703 pm4
= shader
->pm4
= CALLOC_STRUCT(si_pm4_state
);
708 /* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
710 * 0 -> Position = pixel center
711 * 1 -> Position = pixel centroid
712 * 2 -> Position = at sample position
714 * From GLSL 4.5 specification, section 7.1:
715 * "The variable gl_FragCoord is available as an input variable from
716 * within fragment shaders and it holds the window relative coordinates
717 * (x, y, z, 1/w) values for the fragment. If multi-sampling, this
718 * value can be for any location within the pixel, or one of the
719 * fragment samples. The use of centroid does not further restrict
720 * this value to be inside the current primitive."
722 * Meaning that centroid has no effect and we can return anything within
723 * the pixel. Thus, return the value at sample position, because that's
724 * the most accurate one shaders can get.
726 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_LOCATION(2);
728 if (info
->properties
[TGSI_PROPERTY_FS_COORD_PIXEL_CENTER
] ==
729 TGSI_FS_COORD_PIXEL_CENTER_INTEGER
)
730 spi_baryc_cntl
|= S_0286E0_POS_FLOAT_ULC(1);
732 spi_shader_col_format
= si_get_spi_shader_col_format(shader
);
733 cb_shader_mask
= si_get_cb_shader_mask(spi_shader_col_format
);
735 /* This must be non-zero for alpha-test/kill to work.
736 * The hardware ignores the EXEC mask if no export memory is allocated.
737 * Don't add this to CB_SHADER_MASK.
739 if (!spi_shader_col_format
&&
740 !info
->writes_z
&& !info
->writes_stencil
&& !info
->writes_samplemask
&&
741 (shader
->selector
->info
.uses_kill
||
742 shader
->key
.ps
.epilog
.alpha_func
!= PIPE_FUNC_ALWAYS
))
743 spi_shader_col_format
= V_028714_SPI_SHADER_32_R
;
745 si_pm4_set_reg(pm4
, R_0286CC_SPI_PS_INPUT_ENA
, input_ena
);
746 si_pm4_set_reg(pm4
, R_0286D0_SPI_PS_INPUT_ADDR
,
747 shader
->config
.spi_ps_input_addr
);
749 /* Set interpolation controls. */
750 has_centroid
= G_0286CC_PERSP_CENTROID_ENA(shader
->config
.spi_ps_input_ena
) ||
751 G_0286CC_LINEAR_CENTROID_ENA(shader
->config
.spi_ps_input_ena
);
753 spi_ps_in_control
= S_0286D8_NUM_INTERP(si_get_ps_num_interp(shader
)) |
754 S_0286D8_BC_OPTIMIZE_DISABLE(has_centroid
);
757 si_pm4_set_reg(pm4
, R_0286E0_SPI_BARYC_CNTL
, spi_baryc_cntl
);
758 si_pm4_set_reg(pm4
, R_0286D8_SPI_PS_IN_CONTROL
, spi_ps_in_control
);
760 si_pm4_set_reg(pm4
, R_028710_SPI_SHADER_Z_FORMAT
,
761 info
->writes_samplemask
? V_028710_SPI_SHADER_32_ABGR
:
762 info
->writes_stencil
? V_028710_SPI_SHADER_32_GR
:
763 info
->writes_z
? V_028710_SPI_SHADER_32_R
:
764 V_028710_SPI_SHADER_ZERO
);
766 si_pm4_set_reg(pm4
, R_028714_SPI_SHADER_COL_FORMAT
, spi_shader_col_format
);
767 si_pm4_set_reg(pm4
, R_02823C_CB_SHADER_MASK
, cb_shader_mask
);
769 va
= shader
->bo
->gpu_address
;
770 si_pm4_add_bo(pm4
, shader
->bo
, RADEON_USAGE_READ
, RADEON_PRIO_USER_SHADER
);
771 si_pm4_set_reg(pm4
, R_00B020_SPI_SHADER_PGM_LO_PS
, va
>> 8);
772 si_pm4_set_reg(pm4
, R_00B024_SPI_SHADER_PGM_HI_PS
, va
>> 40);
774 num_user_sgprs
= SI_PS_NUM_USER_SGPR
;
775 num_sgprs
= shader
->config
.num_sgprs
;
776 /* One SGPR after user SGPRs is pre-loaded with {prim_mask, lds_offset} */
777 if ((num_user_sgprs
+ 1) > num_sgprs
) {
778 /* Last 2 reserved SGPRs are used for VCC */
779 num_sgprs
= num_user_sgprs
+ 1 + 2;
781 assert(num_sgprs
<= 104);
783 si_pm4_set_reg(pm4
, R_00B028_SPI_SHADER_PGM_RSRC1_PS
,
784 S_00B028_VGPRS((shader
->config
.num_vgprs
- 1) / 4) |
785 S_00B028_SGPRS((num_sgprs
- 1) / 8) |
786 S_00B028_DX10_CLAMP(1) |
787 S_00B028_FLOAT_MODE(shader
->config
.float_mode
));
788 si_pm4_set_reg(pm4
, R_00B02C_SPI_SHADER_PGM_RSRC2_PS
,
789 S_00B02C_EXTRA_LDS_SIZE(shader
->config
.lds_size
) |
790 S_00B02C_USER_SGPR(num_user_sgprs
) |
791 S_00B32C_SCRATCH_EN(shader
->config
.scratch_bytes_per_wave
> 0));
793 /* Prefer RE_Z if the shader is complex enough. The requirement is either:
794 * - the shader uses at least 2 VMEM instructions, or
795 * - the code size is at least 50 2-dword instructions or 100 1-dword
798 * Shaders with side effects that must execute independently of the
799 * depth test require LATE_Z.
801 if (info
->writes_memory
&&
802 !info
->properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
])
803 shader
->z_order
= V_02880C_LATE_Z
;
804 else if (info
->num_memory_instructions
>= 2 ||
805 shader
->binary
.code_size
> 100*4)
806 shader
->z_order
= V_02880C_EARLY_Z_THEN_RE_Z
;
808 shader
->z_order
= V_02880C_EARLY_Z_THEN_LATE_Z
;
811 static void si_shader_init_pm4_state(struct si_shader
*shader
)
815 si_pm4_free_state_simple(shader
->pm4
);
817 switch (shader
->selector
->type
) {
818 case PIPE_SHADER_VERTEX
:
819 if (shader
->key
.vs
.as_ls
)
820 si_shader_ls(shader
);
821 else if (shader
->key
.vs
.as_es
)
822 si_shader_es(shader
);
824 si_shader_vs(shader
, NULL
);
826 case PIPE_SHADER_TESS_CTRL
:
827 si_shader_hs(shader
);
829 case PIPE_SHADER_TESS_EVAL
:
830 if (shader
->key
.tes
.as_es
)
831 si_shader_es(shader
);
833 si_shader_vs(shader
, NULL
);
835 case PIPE_SHADER_GEOMETRY
:
836 si_shader_gs(shader
);
837 si_shader_vs(shader
->gs_copy_shader
, shader
);
839 case PIPE_SHADER_FRAGMENT
:
840 si_shader_ps(shader
);
847 static unsigned si_get_alpha_test_func(struct si_context
*sctx
)
849 /* Alpha-test should be disabled if colorbuffer 0 is integer. */
850 if (sctx
->queued
.named
.dsa
&&
851 !sctx
->framebuffer
.cb0_is_integer
)
852 return sctx
->queued
.named
.dsa
->alpha_func
;
854 return PIPE_FUNC_ALWAYS
;
857 /* Compute the key for the hw shader variant */
858 static inline void si_shader_selector_key(struct pipe_context
*ctx
,
859 struct si_shader_selector
*sel
,
860 union si_shader_key
*key
)
862 struct si_context
*sctx
= (struct si_context
*)ctx
;
865 memset(key
, 0, sizeof(*key
));
868 case PIPE_SHADER_VERTEX
:
869 if (sctx
->vertex_elements
) {
870 unsigned count
= MIN2(sel
->info
.num_inputs
,
871 sctx
->vertex_elements
->count
);
872 for (i
= 0; i
< count
; ++i
)
873 key
->vs
.prolog
.instance_divisors
[i
] =
874 sctx
->vertex_elements
->elements
[i
].instance_divisor
;
876 if (sctx
->tes_shader
.cso
)
878 else if (sctx
->gs_shader
.cso
)
881 if (!sctx
->gs_shader
.cso
&& sctx
->ps_shader
.cso
&&
882 sctx
->ps_shader
.cso
->info
.uses_primid
)
883 key
->vs
.epilog
.export_prim_id
= 1;
885 case PIPE_SHADER_TESS_CTRL
:
886 key
->tcs
.epilog
.prim_mode
=
887 sctx
->tes_shader
.cso
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
];
889 case PIPE_SHADER_TESS_EVAL
:
890 if (sctx
->gs_shader
.cso
)
892 else if (sctx
->ps_shader
.cso
&& sctx
->ps_shader
.cso
->info
.uses_primid
)
893 key
->tes
.epilog
.export_prim_id
= 1;
895 case PIPE_SHADER_GEOMETRY
:
897 case PIPE_SHADER_FRAGMENT
: {
898 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
899 struct si_state_blend
*blend
= sctx
->queued
.named
.blend
;
901 if (sel
->info
.properties
[TGSI_PROPERTY_FS_COLOR0_WRITES_ALL_CBUFS
] &&
902 sel
->info
.colors_written
== 0x1)
903 key
->ps
.epilog
.last_cbuf
= MAX2(sctx
->framebuffer
.state
.nr_cbufs
, 1) - 1;
906 /* Select the shader color format based on whether
907 * blending or alpha are needed.
909 key
->ps
.epilog
.spi_shader_col_format
=
910 (blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
911 sctx
->framebuffer
.spi_shader_col_format_blend_alpha
) |
912 (blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
913 sctx
->framebuffer
.spi_shader_col_format_blend
) |
914 (~blend
->blend_enable_4bit
& blend
->need_src_alpha_4bit
&
915 sctx
->framebuffer
.spi_shader_col_format_alpha
) |
916 (~blend
->blend_enable_4bit
& ~blend
->need_src_alpha_4bit
&
917 sctx
->framebuffer
.spi_shader_col_format
);
919 key
->ps
.epilog
.spi_shader_col_format
= sctx
->framebuffer
.spi_shader_col_format
;
921 /* If alpha-to-coverage is enabled, we have to export alpha
922 * even if there is no color buffer.
924 if (!(key
->ps
.epilog
.spi_shader_col_format
& 0xf) &&
925 blend
&& blend
->alpha_to_coverage
)
926 key
->ps
.epilog
.spi_shader_col_format
|= V_028710_SPI_SHADER_32_AR
;
928 /* On SI and CIK except Hawaii, the CB doesn't clamp outputs
929 * to the range supported by the type if a channel has less
930 * than 16 bits and the export format is 16_ABGR.
932 if (sctx
->b
.chip_class
<= CIK
&& sctx
->b
.family
!= CHIP_HAWAII
)
933 key
->ps
.epilog
.color_is_int8
= sctx
->framebuffer
.color_is_int8
;
935 /* Disable unwritten outputs (if WRITE_ALL_CBUFS isn't enabled). */
936 if (!key
->ps
.epilog
.last_cbuf
) {
937 key
->ps
.epilog
.spi_shader_col_format
&= sel
->colors_written_4bit
;
938 key
->ps
.epilog
.color_is_int8
&= sel
->info
.colors_written
;
942 bool is_poly
= (sctx
->current_rast_prim
>= PIPE_PRIM_TRIANGLES
&&
943 sctx
->current_rast_prim
<= PIPE_PRIM_POLYGON
) ||
944 sctx
->current_rast_prim
>= PIPE_PRIM_TRIANGLES_ADJACENCY
;
945 bool is_line
= !is_poly
&& sctx
->current_rast_prim
!= PIPE_PRIM_POINTS
;
947 key
->ps
.prolog
.color_two_side
= rs
->two_side
&& sel
->info
.colors_read
;
949 if (sctx
->queued
.named
.blend
) {
950 key
->ps
.epilog
.alpha_to_one
= sctx
->queued
.named
.blend
->alpha_to_one
&&
951 rs
->multisample_enable
&&
952 !sctx
->framebuffer
.cb0_is_integer
;
955 key
->ps
.prolog
.poly_stipple
= rs
->poly_stipple_enable
&& is_poly
;
956 key
->ps
.epilog
.poly_line_smoothing
= ((is_poly
&& rs
->poly_smooth
) ||
957 (is_line
&& rs
->line_smooth
)) &&
958 sctx
->framebuffer
.nr_samples
<= 1;
959 key
->ps
.epilog
.clamp_color
= rs
->clamp_fragment_color
;
961 key
->ps
.prolog
.force_persample_interp
=
962 rs
->force_persample_interp
&&
963 rs
->multisample_enable
&&
964 sctx
->framebuffer
.nr_samples
> 1 &&
965 sctx
->ps_iter_samples
> 1 &&
966 (sel
->info
.uses_persp_center
||
967 sel
->info
.uses_persp_centroid
||
968 sel
->info
.uses_linear_center
||
969 sel
->info
.uses_linear_centroid
);
972 key
->ps
.epilog
.alpha_func
= si_get_alpha_test_func(sctx
);
980 /* Select the hw shader variant depending on the current state. */
981 static int si_shader_select_with_key(struct pipe_context
*ctx
,
982 struct si_shader_ctx_state
*state
,
983 union si_shader_key
*key
)
985 struct si_context
*sctx
= (struct si_context
*)ctx
;
986 struct si_shader_selector
*sel
= state
->cso
;
987 struct si_shader
*current
= state
->current
;
988 struct si_shader
*iter
, *shader
= NULL
;
991 /* Check if we don't need to change anything.
992 * This path is also used for most shaders that don't need multiple
993 * variants, it will cost just a computation of the key and this
995 if (likely(current
&& memcmp(¤t
->key
, key
, sizeof(*key
)) == 0))
998 pipe_mutex_lock(sel
->mutex
);
1000 /* Find the shader variant. */
1001 for (iter
= sel
->first_variant
; iter
; iter
= iter
->next_variant
) {
1002 /* Don't check the "current" shader. We checked it above. */
1003 if (current
!= iter
&&
1004 memcmp(&iter
->key
, key
, sizeof(*key
)) == 0) {
1005 state
->current
= iter
;
1006 pipe_mutex_unlock(sel
->mutex
);
1011 /* Build a new shader. */
1012 shader
= CALLOC_STRUCT(si_shader
);
1014 pipe_mutex_unlock(sel
->mutex
);
1017 shader
->selector
= sel
;
1020 r
= si_shader_create(sctx
->screen
, sctx
->tm
, shader
, &sctx
->b
.debug
);
1022 R600_ERR("Failed to build shader variant (type=%u) %d\n",
1025 pipe_mutex_unlock(sel
->mutex
);
1028 si_shader_init_pm4_state(shader
);
1030 if (!sel
->last_variant
) {
1031 sel
->first_variant
= shader
;
1032 sel
->last_variant
= shader
;
1034 sel
->last_variant
->next_variant
= shader
;
1035 sel
->last_variant
= shader
;
1037 state
->current
= shader
;
1038 pipe_mutex_unlock(sel
->mutex
);
1042 static int si_shader_select(struct pipe_context
*ctx
,
1043 struct si_shader_ctx_state
*state
)
1045 union si_shader_key key
;
1047 si_shader_selector_key(ctx
, state
->cso
, &key
);
1048 return si_shader_select_with_key(ctx
, state
, &key
);
1051 static void si_parse_next_shader_property(const struct tgsi_shader_info
*info
,
1052 union si_shader_key
*key
)
1054 unsigned next_shader
= info
->properties
[TGSI_PROPERTY_NEXT_SHADER
];
1056 switch (info
->processor
) {
1057 case TGSI_PROCESSOR_VERTEX
:
1058 switch (next_shader
) {
1059 case TGSI_PROCESSOR_GEOMETRY
:
1062 case TGSI_PROCESSOR_TESS_CTRL
:
1063 case TGSI_PROCESSOR_TESS_EVAL
:
1069 case TGSI_PROCESSOR_TESS_EVAL
:
1070 if (next_shader
== TGSI_PROCESSOR_GEOMETRY
)
1076 static void *si_create_shader_selector(struct pipe_context
*ctx
,
1077 const struct pipe_shader_state
*state
)
1079 struct si_screen
*sscreen
= (struct si_screen
*)ctx
->screen
;
1080 struct si_context
*sctx
= (struct si_context
*)ctx
;
1081 struct si_shader_selector
*sel
= CALLOC_STRUCT(si_shader_selector
);
1087 sel
->tokens
= tgsi_dup_tokens(state
->tokens
);
1093 sel
->so
= state
->stream_output
;
1094 tgsi_scan_shader(state
->tokens
, &sel
->info
);
1095 sel
->type
= util_pipe_shader_from_tgsi_processor(sel
->info
.processor
);
1096 p_atomic_inc(&sscreen
->b
.num_shaders_created
);
1098 /* Set which opcode uses which (i,j) pair. */
1099 if (sel
->info
.uses_persp_opcode_interp_centroid
)
1100 sel
->info
.uses_persp_centroid
= true;
1102 if (sel
->info
.uses_linear_opcode_interp_centroid
)
1103 sel
->info
.uses_linear_centroid
= true;
1105 if (sel
->info
.uses_persp_opcode_interp_offset
||
1106 sel
->info
.uses_persp_opcode_interp_sample
)
1107 sel
->info
.uses_persp_center
= true;
1109 if (sel
->info
.uses_linear_opcode_interp_offset
||
1110 sel
->info
.uses_linear_opcode_interp_sample
)
1111 sel
->info
.uses_linear_center
= true;
1113 switch (sel
->type
) {
1114 case PIPE_SHADER_GEOMETRY
:
1115 sel
->gs_output_prim
=
1116 sel
->info
.properties
[TGSI_PROPERTY_GS_OUTPUT_PRIM
];
1117 sel
->gs_max_out_vertices
=
1118 sel
->info
.properties
[TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES
];
1119 sel
->gs_num_invocations
=
1120 sel
->info
.properties
[TGSI_PROPERTY_GS_INVOCATIONS
];
1121 sel
->gsvs_vertex_size
= sel
->info
.num_outputs
* 16;
1122 sel
->max_gsvs_emit_size
= sel
->gsvs_vertex_size
*
1123 sel
->gs_max_out_vertices
;
1125 sel
->max_gs_stream
= 0;
1126 for (i
= 0; i
< sel
->so
.num_outputs
; i
++)
1127 sel
->max_gs_stream
= MAX2(sel
->max_gs_stream
,
1128 sel
->so
.output
[i
].stream
);
1130 sel
->gs_input_verts_per_prim
=
1131 u_vertices_per_prim(sel
->info
.properties
[TGSI_PROPERTY_GS_INPUT_PRIM
]);
1134 case PIPE_SHADER_VERTEX
:
1135 case PIPE_SHADER_TESS_CTRL
:
1136 case PIPE_SHADER_TESS_EVAL
:
1137 for (i
= 0; i
< sel
->info
.num_outputs
; i
++) {
1138 unsigned name
= sel
->info
.output_semantic_name
[i
];
1139 unsigned index
= sel
->info
.output_semantic_index
[i
];
1142 case TGSI_SEMANTIC_TESSINNER
:
1143 case TGSI_SEMANTIC_TESSOUTER
:
1144 case TGSI_SEMANTIC_PATCH
:
1145 sel
->patch_outputs_written
|=
1146 1llu << si_shader_io_get_unique_index(name
, index
);
1149 sel
->outputs_written
|=
1150 1llu << si_shader_io_get_unique_index(name
, index
);
1153 sel
->esgs_itemsize
= util_last_bit64(sel
->outputs_written
) * 16;
1156 case PIPE_SHADER_FRAGMENT
:
1157 for (i
= 0; i
< 8; i
++)
1158 if (sel
->info
.colors_written
& (1 << i
))
1159 sel
->colors_written_4bit
|= 0xf << (4 * i
);
1161 for (i
= 0; i
< sel
->info
.num_inputs
; i
++) {
1162 if (sel
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_COLOR
) {
1163 int index
= sel
->info
.input_semantic_index
[i
];
1164 sel
->color_attr_index
[index
] = i
;
1170 /* DB_SHADER_CONTROL */
1171 sel
->db_shader_control
=
1172 S_02880C_Z_EXPORT_ENABLE(sel
->info
.writes_z
) |
1173 S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(sel
->info
.writes_stencil
) |
1174 S_02880C_MASK_EXPORT_ENABLE(sel
->info
.writes_samplemask
) |
1175 S_02880C_KILL_ENABLE(sel
->info
.uses_kill
);
1177 switch (sel
->info
.properties
[TGSI_PROPERTY_FS_DEPTH_LAYOUT
]) {
1178 case TGSI_FS_DEPTH_LAYOUT_GREATER
:
1179 sel
->db_shader_control
|=
1180 S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_GREATER_THAN_Z
);
1182 case TGSI_FS_DEPTH_LAYOUT_LESS
:
1183 sel
->db_shader_control
|=
1184 S_02880C_CONSERVATIVE_Z_EXPORT(V_02880C_EXPORT_LESS_THAN_Z
);
1188 if (sel
->info
.properties
[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL
])
1189 sel
->db_shader_control
|= S_02880C_DEPTH_BEFORE_SHADER(1);
1191 if (sel
->info
.writes_memory
)
1192 sel
->db_shader_control
|= S_02880C_EXEC_ON_HIER_FAIL(1) |
1193 S_02880C_EXEC_ON_NOOP(1);
1195 /* Compile the main shader part for use with a prolog and/or epilog. */
1196 if (sel
->type
!= PIPE_SHADER_GEOMETRY
&&
1197 !sscreen
->use_monolithic_shaders
) {
1198 struct si_shader
*shader
= CALLOC_STRUCT(si_shader
);
1204 shader
->selector
= sel
;
1205 si_parse_next_shader_property(&sel
->info
, &shader
->key
);
1207 tgsi_binary
= si_get_tgsi_binary(sel
);
1209 /* Try to load the shader from the shader cache. */
1210 pipe_mutex_lock(sscreen
->shader_cache_mutex
);
1213 si_shader_cache_load_shader(sscreen
, tgsi_binary
, shader
)) {
1216 /* Compile the shader if it hasn't been loaded from the cache. */
1217 if (si_compile_tgsi_shader(sscreen
, sctx
->tm
, shader
, false,
1218 &sctx
->b
.debug
) != 0) {
1221 pipe_mutex_unlock(sscreen
->shader_cache_mutex
);
1226 !si_shader_cache_insert_shader(sscreen
, tgsi_binary
, shader
))
1229 pipe_mutex_unlock(sscreen
->shader_cache_mutex
);
1231 sel
->main_shader_part
= shader
;
1234 /* Pre-compilation. */
1235 if (sel
->type
== PIPE_SHADER_GEOMETRY
||
1236 sscreen
->b
.debug_flags
& DBG_PRECOMPILE
) {
1237 struct si_shader_ctx_state state
= {sel
};
1238 union si_shader_key key
;
1240 memset(&key
, 0, sizeof(key
));
1241 si_parse_next_shader_property(&sel
->info
, &key
);
1243 /* Set reasonable defaults, so that the shader key doesn't
1244 * cause any code to be eliminated.
1246 switch (sel
->type
) {
1247 case PIPE_SHADER_TESS_CTRL
:
1248 key
.tcs
.epilog
.prim_mode
= PIPE_PRIM_TRIANGLES
;
1250 case PIPE_SHADER_FRAGMENT
:
1251 key
.ps
.epilog
.alpha_func
= PIPE_FUNC_ALWAYS
;
1252 for (i
= 0; i
< 8; i
++)
1253 if (sel
->info
.colors_written
& (1 << i
))
1254 key
.ps
.epilog
.spi_shader_col_format
|=
1255 V_028710_SPI_SHADER_FP16_ABGR
<< (i
* 4);
1259 if (si_shader_select_with_key(ctx
, &state
, &key
))
1263 pipe_mutex_init(sel
->mutex
);
1267 fprintf(stderr
, "radeonsi: can't create a shader\n");
1268 tgsi_free_tokens(sel
->tokens
);
1274 * Normally, we only emit 1 viewport and 1 scissor if no shader is using
1275 * the VIEWPORT_INDEX output, and emitting the other viewports and scissors
1276 * is delayed. When a shader with VIEWPORT_INDEX appears, this should be
1277 * called to emit the rest.
1279 static void si_update_viewports_and_scissors(struct si_context
*sctx
)
1281 struct tgsi_shader_info
*info
= si_get_vs_info(sctx
);
1283 if (!info
|| !info
->writes_viewport_index
)
1286 if (sctx
->scissors
.dirty_mask
)
1287 si_mark_atom_dirty(sctx
, &sctx
->scissors
.atom
);
1288 if (sctx
->viewports
.dirty_mask
)
1289 si_mark_atom_dirty(sctx
, &sctx
->viewports
.atom
);
1292 static void si_bind_vs_shader(struct pipe_context
*ctx
, void *state
)
1294 struct si_context
*sctx
= (struct si_context
*)ctx
;
1295 struct si_shader_selector
*sel
= state
;
1297 if (sctx
->vs_shader
.cso
== sel
)
1300 sctx
->vs_shader
.cso
= sel
;
1301 sctx
->vs_shader
.current
= sel
? sel
->first_variant
: NULL
;
1302 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
1303 si_update_viewports_and_scissors(sctx
);
1306 static void si_bind_gs_shader(struct pipe_context
*ctx
, void *state
)
1308 struct si_context
*sctx
= (struct si_context
*)ctx
;
1309 struct si_shader_selector
*sel
= state
;
1310 bool enable_changed
= !!sctx
->gs_shader
.cso
!= !!sel
;
1312 if (sctx
->gs_shader
.cso
== sel
)
1315 sctx
->gs_shader
.cso
= sel
;
1316 sctx
->gs_shader
.current
= sel
? sel
->first_variant
: NULL
;
1317 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
1318 sctx
->last_rast_prim
= -1; /* reset this so that it gets updated */
1321 si_shader_change_notify(sctx
);
1322 si_update_viewports_and_scissors(sctx
);
1325 static void si_bind_tcs_shader(struct pipe_context
*ctx
, void *state
)
1327 struct si_context
*sctx
= (struct si_context
*)ctx
;
1328 struct si_shader_selector
*sel
= state
;
1329 bool enable_changed
= !!sctx
->tcs_shader
.cso
!= !!sel
;
1331 if (sctx
->tcs_shader
.cso
== sel
)
1334 sctx
->tcs_shader
.cso
= sel
;
1335 sctx
->tcs_shader
.current
= sel
? sel
->first_variant
: NULL
;
1338 sctx
->last_tcs
= NULL
; /* invalidate derived tess state */
1341 static void si_bind_tes_shader(struct pipe_context
*ctx
, void *state
)
1343 struct si_context
*sctx
= (struct si_context
*)ctx
;
1344 struct si_shader_selector
*sel
= state
;
1345 bool enable_changed
= !!sctx
->tes_shader
.cso
!= !!sel
;
1347 if (sctx
->tes_shader
.cso
== sel
)
1350 sctx
->tes_shader
.cso
= sel
;
1351 sctx
->tes_shader
.current
= sel
? sel
->first_variant
: NULL
;
1352 si_mark_atom_dirty(sctx
, &sctx
->clip_regs
);
1353 sctx
->last_rast_prim
= -1; /* reset this so that it gets updated */
1355 if (enable_changed
) {
1356 si_shader_change_notify(sctx
);
1357 sctx
->last_tes_sh_base
= -1; /* invalidate derived tess state */
1359 si_update_viewports_and_scissors(sctx
);
1362 static void si_bind_ps_shader(struct pipe_context
*ctx
, void *state
)
1364 struct si_context
*sctx
= (struct si_context
*)ctx
;
1365 struct si_shader_selector
*sel
= state
;
1367 /* skip if supplied shader is one already in use */
1368 if (sctx
->ps_shader
.cso
== sel
)
1371 sctx
->ps_shader
.cso
= sel
;
1372 sctx
->ps_shader
.current
= sel
? sel
->first_variant
: NULL
;
1373 si_mark_atom_dirty(sctx
, &sctx
->cb_render_state
);
1376 static void si_delete_shader(struct si_context
*sctx
, struct si_shader
*shader
)
1379 switch (shader
->selector
->type
) {
1380 case PIPE_SHADER_VERTEX
:
1381 if (shader
->key
.vs
.as_ls
)
1382 si_pm4_delete_state(sctx
, ls
, shader
->pm4
);
1383 else if (shader
->key
.vs
.as_es
)
1384 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
1386 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
1388 case PIPE_SHADER_TESS_CTRL
:
1389 si_pm4_delete_state(sctx
, hs
, shader
->pm4
);
1391 case PIPE_SHADER_TESS_EVAL
:
1392 if (shader
->key
.tes
.as_es
)
1393 si_pm4_delete_state(sctx
, es
, shader
->pm4
);
1395 si_pm4_delete_state(sctx
, vs
, shader
->pm4
);
1397 case PIPE_SHADER_GEOMETRY
:
1398 si_pm4_delete_state(sctx
, gs
, shader
->pm4
);
1399 si_pm4_delete_state(sctx
, vs
, shader
->gs_copy_shader
->pm4
);
1401 case PIPE_SHADER_FRAGMENT
:
1402 si_pm4_delete_state(sctx
, ps
, shader
->pm4
);
1407 si_shader_destroy(shader
);
1411 static void si_delete_shader_selector(struct pipe_context
*ctx
, void *state
)
1413 struct si_context
*sctx
= (struct si_context
*)ctx
;
1414 struct si_shader_selector
*sel
= (struct si_shader_selector
*)state
;
1415 struct si_shader
*p
= sel
->first_variant
, *c
;
1416 struct si_shader_ctx_state
*current_shader
[SI_NUM_SHADERS
] = {
1417 [PIPE_SHADER_VERTEX
] = &sctx
->vs_shader
,
1418 [PIPE_SHADER_TESS_CTRL
] = &sctx
->tcs_shader
,
1419 [PIPE_SHADER_TESS_EVAL
] = &sctx
->tes_shader
,
1420 [PIPE_SHADER_GEOMETRY
] = &sctx
->gs_shader
,
1421 [PIPE_SHADER_FRAGMENT
] = &sctx
->ps_shader
,
1424 if (current_shader
[sel
->type
]->cso
== sel
) {
1425 current_shader
[sel
->type
]->cso
= NULL
;
1426 current_shader
[sel
->type
]->current
= NULL
;
1430 c
= p
->next_variant
;
1431 si_delete_shader(sctx
, p
);
1435 if (sel
->main_shader_part
)
1436 si_delete_shader(sctx
, sel
->main_shader_part
);
1438 pipe_mutex_destroy(sel
->mutex
);
1443 static unsigned si_get_ps_input_cntl(struct si_context
*sctx
,
1444 struct si_shader
*vs
, unsigned name
,
1445 unsigned index
, unsigned interpolate
)
1447 struct tgsi_shader_info
*vsinfo
= &vs
->selector
->info
;
1448 unsigned j
, ps_input_cntl
= 0;
1450 if (interpolate
== TGSI_INTERPOLATE_CONSTANT
||
1451 (interpolate
== TGSI_INTERPOLATE_COLOR
&& sctx
->flatshade
))
1452 ps_input_cntl
|= S_028644_FLAT_SHADE(1);
1454 if (name
== TGSI_SEMANTIC_PCOORD
||
1455 (name
== TGSI_SEMANTIC_TEXCOORD
&&
1456 sctx
->sprite_coord_enable
& (1 << index
))) {
1457 ps_input_cntl
|= S_028644_PT_SPRITE_TEX(1);
1460 for (j
= 0; j
< vsinfo
->num_outputs
; j
++) {
1461 if (name
== vsinfo
->output_semantic_name
[j
] &&
1462 index
== vsinfo
->output_semantic_index
[j
]) {
1463 ps_input_cntl
|= S_028644_OFFSET(vs
->info
.vs_output_param_offset
[j
]);
1468 if (name
== TGSI_SEMANTIC_PRIMID
)
1469 /* PrimID is written after the last output. */
1470 ps_input_cntl
|= S_028644_OFFSET(vs
->info
.vs_output_param_offset
[vsinfo
->num_outputs
]);
1471 else if (j
== vsinfo
->num_outputs
&& !G_028644_PT_SPRITE_TEX(ps_input_cntl
)) {
1472 /* No corresponding output found, load defaults into input.
1473 * Don't set any other bits.
1474 * (FLAT_SHADE=1 completely changes behavior) */
1475 ps_input_cntl
= S_028644_OFFSET(0x20);
1477 return ps_input_cntl
;
1480 static void si_emit_spi_map(struct si_context
*sctx
, struct r600_atom
*atom
)
1482 struct radeon_winsys_cs
*cs
= sctx
->b
.gfx
.cs
;
1483 struct si_shader
*ps
= sctx
->ps_shader
.current
;
1484 struct si_shader
*vs
= si_get_vs_state(sctx
);
1485 struct tgsi_shader_info
*psinfo
= ps
? &ps
->selector
->info
: NULL
;
1486 unsigned i
, num_interp
, num_written
= 0, bcol_interp
[2];
1488 if (!ps
|| !ps
->selector
->info
.num_inputs
)
1491 num_interp
= si_get_ps_num_interp(ps
);
1492 assert(num_interp
> 0);
1493 radeon_set_context_reg_seq(cs
, R_028644_SPI_PS_INPUT_CNTL_0
, num_interp
);
1495 for (i
= 0; i
< psinfo
->num_inputs
; i
++) {
1496 unsigned name
= psinfo
->input_semantic_name
[i
];
1497 unsigned index
= psinfo
->input_semantic_index
[i
];
1498 unsigned interpolate
= psinfo
->input_interpolate
[i
];
1500 radeon_emit(cs
, si_get_ps_input_cntl(sctx
, vs
, name
, index
,
1504 if (name
== TGSI_SEMANTIC_COLOR
) {
1505 assert(index
< ARRAY_SIZE(bcol_interp
));
1506 bcol_interp
[index
] = interpolate
;
1510 if (ps
->key
.ps
.prolog
.color_two_side
) {
1511 unsigned bcol
= TGSI_SEMANTIC_BCOLOR
;
1513 for (i
= 0; i
< 2; i
++) {
1514 if (!(psinfo
->colors_read
& (0xf << (i
* 4))))
1517 radeon_emit(cs
, si_get_ps_input_cntl(sctx
, vs
, bcol
,
1518 i
, bcol_interp
[i
]));
1522 assert(num_interp
== num_written
);
1526 * Writing CONFIG or UCONFIG VGT registers requires VGT_FLUSH before that.
1528 static void si_init_config_add_vgt_flush(struct si_context
*sctx
)
1530 if (sctx
->init_config_has_vgt_flush
)
1533 /* VGT_FLUSH is required even if VGT is idle. It resets VGT pointers. */
1534 si_pm4_cmd_begin(sctx
->init_config
, PKT3_EVENT_WRITE
);
1535 si_pm4_cmd_add(sctx
->init_config
, EVENT_TYPE(V_028A90_VGT_FLUSH
) | EVENT_INDEX(0));
1536 si_pm4_cmd_end(sctx
->init_config
, false);
1537 sctx
->init_config_has_vgt_flush
= true;
1540 /* Initialize state related to ESGS / GSVS ring buffers */
1541 static bool si_update_gs_ring_buffers(struct si_context
*sctx
)
1543 struct si_shader_selector
*es
=
1544 sctx
->tes_shader
.cso
? sctx
->tes_shader
.cso
: sctx
->vs_shader
.cso
;
1545 struct si_shader_selector
*gs
= sctx
->gs_shader
.cso
;
1546 struct si_pm4_state
*pm4
;
1548 /* Chip constants. */
1549 unsigned num_se
= sctx
->screen
->b
.info
.max_se
;
1550 unsigned wave_size
= 64;
1551 unsigned max_gs_waves
= 32 * num_se
; /* max 32 per SE on GCN */
1552 unsigned gs_vertex_reuse
= 16 * num_se
; /* GS_VERTEX_REUSE register (per SE) */
1553 unsigned alignment
= 256 * num_se
;
1554 /* The maximum size is 63.999 MB per SE. */
1555 unsigned max_size
= ((unsigned)(63.999 * 1024 * 1024) & ~255) * num_se
;
1557 /* Calculate the minimum size. */
1558 unsigned min_esgs_ring_size
= align(es
->esgs_itemsize
* gs_vertex_reuse
*
1559 wave_size
, alignment
);
1561 /* These are recommended sizes, not minimum sizes. */
1562 unsigned esgs_ring_size
= max_gs_waves
* 2 * wave_size
*
1563 es
->esgs_itemsize
* gs
->gs_input_verts_per_prim
;
1564 unsigned gsvs_ring_size
= max_gs_waves
* 2 * wave_size
*
1565 gs
->max_gsvs_emit_size
* (gs
->max_gs_stream
+ 1);
1567 min_esgs_ring_size
= align(min_esgs_ring_size
, alignment
);
1568 esgs_ring_size
= align(esgs_ring_size
, alignment
);
1569 gsvs_ring_size
= align(gsvs_ring_size
, alignment
);
1571 esgs_ring_size
= CLAMP(esgs_ring_size
, min_esgs_ring_size
, max_size
);
1572 gsvs_ring_size
= MIN2(gsvs_ring_size
, max_size
);
1574 /* Some rings don't have to be allocated if shaders don't use them.
1575 * (e.g. no varyings between ES and GS or GS and VS)
1577 bool update_esgs
= esgs_ring_size
&&
1578 (!sctx
->esgs_ring
||
1579 sctx
->esgs_ring
->width0
< esgs_ring_size
);
1580 bool update_gsvs
= gsvs_ring_size
&&
1581 (!sctx
->gsvs_ring
||
1582 sctx
->gsvs_ring
->width0
< gsvs_ring_size
);
1584 if (!update_esgs
&& !update_gsvs
)
1588 pipe_resource_reference(&sctx
->esgs_ring
, NULL
);
1589 sctx
->esgs_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1592 if (!sctx
->esgs_ring
)
1597 pipe_resource_reference(&sctx
->gsvs_ring
, NULL
);
1598 sctx
->gsvs_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1601 if (!sctx
->gsvs_ring
)
1605 /* Create the "init_config_gs_rings" state. */
1606 pm4
= CALLOC_STRUCT(si_pm4_state
);
1610 if (sctx
->b
.chip_class
>= CIK
) {
1611 if (sctx
->esgs_ring
)
1612 si_pm4_set_reg(pm4
, R_030900_VGT_ESGS_RING_SIZE
,
1613 sctx
->esgs_ring
->width0
/ 256);
1614 if (sctx
->gsvs_ring
)
1615 si_pm4_set_reg(pm4
, R_030904_VGT_GSVS_RING_SIZE
,
1616 sctx
->gsvs_ring
->width0
/ 256);
1618 if (sctx
->esgs_ring
)
1619 si_pm4_set_reg(pm4
, R_0088C8_VGT_ESGS_RING_SIZE
,
1620 sctx
->esgs_ring
->width0
/ 256);
1621 if (sctx
->gsvs_ring
)
1622 si_pm4_set_reg(pm4
, R_0088CC_VGT_GSVS_RING_SIZE
,
1623 sctx
->gsvs_ring
->width0
/ 256);
1626 /* Set the state. */
1627 if (sctx
->init_config_gs_rings
)
1628 si_pm4_free_state(sctx
, sctx
->init_config_gs_rings
, ~0);
1629 sctx
->init_config_gs_rings
= pm4
;
1631 if (!sctx
->init_config_has_vgt_flush
) {
1632 si_init_config_add_vgt_flush(sctx
);
1633 si_pm4_upload_indirect_buffer(sctx
, sctx
->init_config
);
1636 /* Flush the context to re-emit both init_config states. */
1637 sctx
->b
.initial_gfx_cs_size
= 0; /* force flush */
1638 si_context_gfx_flush(sctx
, RADEON_FLUSH_ASYNC
, NULL
);
1640 /* Set ring bindings. */
1641 if (sctx
->esgs_ring
) {
1642 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_VERTEX
, SI_RING_ESGS
,
1643 sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
,
1644 true, true, 4, 64, 0);
1645 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_ESGS
,
1646 sctx
->esgs_ring
, 0, sctx
->esgs_ring
->width0
,
1647 false, false, 0, 0, 0);
1649 if (sctx
->gsvs_ring
)
1650 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_VERTEX
, SI_RING_GSVS
,
1651 sctx
->gsvs_ring
, 0, sctx
->gsvs_ring
->width0
,
1652 false, false, 0, 0, 0);
1656 static void si_update_gsvs_ring_bindings(struct si_context
*sctx
)
1658 unsigned gsvs_itemsize
= sctx
->gs_shader
.cso
->max_gsvs_emit_size
;
1661 if (!sctx
->gsvs_ring
|| gsvs_itemsize
== sctx
->last_gsvs_itemsize
)
1664 sctx
->last_gsvs_itemsize
= gsvs_itemsize
;
1666 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS
,
1667 sctx
->gsvs_ring
, gsvs_itemsize
,
1668 64, true, true, 4, 16, 0);
1670 offset
= gsvs_itemsize
* 64;
1671 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_1
,
1672 sctx
->gsvs_ring
, gsvs_itemsize
,
1673 64, true, true, 4, 16, offset
);
1675 offset
= (gsvs_itemsize
* 2) * 64;
1676 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_2
,
1677 sctx
->gsvs_ring
, gsvs_itemsize
,
1678 64, true, true, 4, 16, offset
);
1680 offset
= (gsvs_itemsize
* 3) * 64;
1681 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_GEOMETRY
, SI_RING_GSVS_3
,
1682 sctx
->gsvs_ring
, gsvs_itemsize
,
1683 64, true, true, 4, 16, offset
);
1687 * @returns 1 if \p sel has been updated to use a new scratch buffer
1689 * < 0 if there was a failure
1691 static int si_update_scratch_buffer(struct si_context
*sctx
,
1692 struct si_shader
*shader
)
1694 uint64_t scratch_va
= sctx
->scratch_buffer
->gpu_address
;
1700 /* This shader doesn't need a scratch buffer */
1701 if (shader
->config
.scratch_bytes_per_wave
== 0)
1704 /* This shader is already configured to use the current
1705 * scratch buffer. */
1706 if (shader
->scratch_bo
== sctx
->scratch_buffer
)
1709 assert(sctx
->scratch_buffer
);
1711 si_shader_apply_scratch_relocs(sctx
, shader
, scratch_va
);
1713 /* Replace the shader bo with a new bo that has the relocs applied. */
1714 r
= si_shader_binary_upload(sctx
->screen
, shader
);
1718 /* Update the shader state to use the new shader bo. */
1719 si_shader_init_pm4_state(shader
);
1721 r600_resource_reference(&shader
->scratch_bo
, sctx
->scratch_buffer
);
1726 static unsigned si_get_current_scratch_buffer_size(struct si_context
*sctx
)
1728 return sctx
->scratch_buffer
? sctx
->scratch_buffer
->b
.b
.width0
: 0;
1731 static unsigned si_get_scratch_buffer_bytes_per_wave(struct si_shader
*shader
)
1733 return shader
? shader
->config
.scratch_bytes_per_wave
: 0;
1736 static unsigned si_get_max_scratch_bytes_per_wave(struct si_context
*sctx
)
1740 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->ps_shader
.current
));
1741 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->gs_shader
.current
));
1742 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->vs_shader
.current
));
1743 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->tcs_shader
.current
));
1744 bytes
= MAX2(bytes
, si_get_scratch_buffer_bytes_per_wave(sctx
->tes_shader
.current
));
1748 static bool si_update_spi_tmpring_size(struct si_context
*sctx
)
1750 unsigned current_scratch_buffer_size
=
1751 si_get_current_scratch_buffer_size(sctx
);
1752 unsigned scratch_bytes_per_wave
=
1753 si_get_max_scratch_bytes_per_wave(sctx
);
1754 unsigned scratch_needed_size
= scratch_bytes_per_wave
*
1755 sctx
->scratch_waves
;
1756 unsigned spi_tmpring_size
;
1759 if (scratch_needed_size
> 0) {
1760 if (scratch_needed_size
> current_scratch_buffer_size
) {
1761 /* Create a bigger scratch buffer */
1762 pipe_resource_reference(
1763 (struct pipe_resource
**)&sctx
->scratch_buffer
,
1766 sctx
->scratch_buffer
=
1767 si_resource_create_custom(&sctx
->screen
->b
.b
,
1768 PIPE_USAGE_DEFAULT
, scratch_needed_size
);
1769 if (!sctx
->scratch_buffer
)
1771 sctx
->emit_scratch_reloc
= true;
1774 /* Update the shaders, so they are using the latest scratch. The
1775 * scratch buffer may have been changed since these shaders were
1776 * last used, so we still need to try to update them, even if
1777 * they require scratch buffers smaller than the current size.
1779 r
= si_update_scratch_buffer(sctx
, sctx
->ps_shader
.current
);
1783 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
1785 r
= si_update_scratch_buffer(sctx
, sctx
->gs_shader
.current
);
1789 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
1791 r
= si_update_scratch_buffer(sctx
, sctx
->tcs_shader
.current
);
1795 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
.current
->pm4
);
1797 /* VS can be bound as LS, ES, or VS. */
1798 r
= si_update_scratch_buffer(sctx
, sctx
->vs_shader
.current
);
1802 if (sctx
->tes_shader
.current
)
1803 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
1804 else if (sctx
->gs_shader
.current
)
1805 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
1807 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
1810 /* TES can be bound as ES or VS. */
1811 r
= si_update_scratch_buffer(sctx
, sctx
->tes_shader
.current
);
1815 if (sctx
->gs_shader
.current
)
1816 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
1818 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
1822 /* The LLVM shader backend should be reporting aligned scratch_sizes. */
1823 assert((scratch_needed_size
& ~0x3FF) == scratch_needed_size
&&
1824 "scratch size should already be aligned correctly.");
1826 spi_tmpring_size
= S_0286E8_WAVES(sctx
->scratch_waves
) |
1827 S_0286E8_WAVESIZE(scratch_bytes_per_wave
>> 10);
1828 if (spi_tmpring_size
!= sctx
->spi_tmpring_size
) {
1829 sctx
->spi_tmpring_size
= spi_tmpring_size
;
1830 sctx
->emit_scratch_reloc
= true;
1835 static void si_init_tess_factor_ring(struct si_context
*sctx
)
1837 assert(!sctx
->tf_ring
);
1839 sctx
->tf_ring
= pipe_buffer_create(sctx
->b
.b
.screen
, PIPE_BIND_CUSTOM
,
1841 32768 * sctx
->screen
->b
.info
.max_se
);
1845 assert(((sctx
->tf_ring
->width0
/ 4) & C_030938_SIZE
) == 0);
1847 si_init_config_add_vgt_flush(sctx
);
1849 /* Append these registers to the init config state. */
1850 if (sctx
->b
.chip_class
>= CIK
) {
1851 si_pm4_set_reg(sctx
->init_config
, R_030938_VGT_TF_RING_SIZE
,
1852 S_030938_SIZE(sctx
->tf_ring
->width0
/ 4));
1853 si_pm4_set_reg(sctx
->init_config
, R_030940_VGT_TF_MEMORY_BASE
,
1854 r600_resource(sctx
->tf_ring
)->gpu_address
>> 8);
1856 si_pm4_set_reg(sctx
->init_config
, R_008988_VGT_TF_RING_SIZE
,
1857 S_008988_SIZE(sctx
->tf_ring
->width0
/ 4));
1858 si_pm4_set_reg(sctx
->init_config
, R_0089B8_VGT_TF_MEMORY_BASE
,
1859 r600_resource(sctx
->tf_ring
)->gpu_address
>> 8);
1862 /* Flush the context to re-emit the init_config state.
1863 * This is done only once in a lifetime of a context.
1865 si_pm4_upload_indirect_buffer(sctx
, sctx
->init_config
);
1866 sctx
->b
.initial_gfx_cs_size
= 0; /* force flush */
1867 si_context_gfx_flush(sctx
, RADEON_FLUSH_ASYNC
, NULL
);
1869 si_set_ring_buffer(&sctx
->b
.b
, PIPE_SHADER_TESS_CTRL
,
1870 SI_RING_TESS_FACTOR
, sctx
->tf_ring
, 0,
1871 sctx
->tf_ring
->width0
, false, false, 0, 0, 0);
1875 * This is used when TCS is NULL in the VS->TCS->TES chain. In this case,
1876 * VS passes its outputs to TES directly, so the fixed-function shader only
1877 * has to write TESSOUTER and TESSINNER.
1879 static void si_generate_fixed_func_tcs(struct si_context
*sctx
)
1881 struct ureg_src const0
, const1
;
1882 struct ureg_dst tessouter
, tessinner
;
1883 struct ureg_program
*ureg
= ureg_create(TGSI_PROCESSOR_TESS_CTRL
);
1886 return; /* if we get here, we're screwed */
1888 assert(!sctx
->fixed_func_tcs_shader
.cso
);
1890 ureg_DECL_constant2D(ureg
, 0, 1, SI_DRIVER_STATE_CONST_BUF
);
1891 const0
= ureg_src_dimension(ureg_src_register(TGSI_FILE_CONSTANT
, 0),
1892 SI_DRIVER_STATE_CONST_BUF
);
1893 const1
= ureg_src_dimension(ureg_src_register(TGSI_FILE_CONSTANT
, 1),
1894 SI_DRIVER_STATE_CONST_BUF
);
1896 tessouter
= ureg_DECL_output(ureg
, TGSI_SEMANTIC_TESSOUTER
, 0);
1897 tessinner
= ureg_DECL_output(ureg
, TGSI_SEMANTIC_TESSINNER
, 0);
1899 ureg_MOV(ureg
, tessouter
, const0
);
1900 ureg_MOV(ureg
, tessinner
, const1
);
1903 sctx
->fixed_func_tcs_shader
.cso
=
1904 ureg_create_shader_and_destroy(ureg
, &sctx
->b
.b
);
1907 static void si_update_vgt_shader_config(struct si_context
*sctx
)
1909 /* Calculate the index of the config.
1910 * 0 = VS, 1 = VS+GS, 2 = VS+Tess, 3 = VS+Tess+GS */
1911 unsigned index
= 2*!!sctx
->tes_shader
.cso
+ !!sctx
->gs_shader
.cso
;
1912 struct si_pm4_state
**pm4
= &sctx
->vgt_shader_config
[index
];
1915 uint32_t stages
= 0;
1917 *pm4
= CALLOC_STRUCT(si_pm4_state
);
1919 if (sctx
->tes_shader
.cso
) {
1920 stages
|= S_028B54_LS_EN(V_028B54_LS_STAGE_ON
) |
1923 if (sctx
->gs_shader
.cso
)
1924 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_DS
) |
1926 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
1928 stages
|= S_028B54_VS_EN(V_028B54_VS_STAGE_DS
);
1929 } else if (sctx
->gs_shader
.cso
) {
1930 stages
|= S_028B54_ES_EN(V_028B54_ES_STAGE_REAL
) |
1932 S_028B54_VS_EN(V_028B54_VS_STAGE_COPY_SHADER
);
1935 si_pm4_set_reg(*pm4
, R_028B54_VGT_SHADER_STAGES_EN
, stages
);
1937 si_pm4_bind_state(sctx
, vgt_shader_config
, *pm4
);
1940 static void si_update_so(struct si_context
*sctx
, struct si_shader_selector
*shader
)
1942 struct pipe_stream_output_info
*so
= &shader
->so
;
1943 uint32_t enabled_stream_buffers_mask
= 0;
1946 for (i
= 0; i
< so
->num_outputs
; i
++)
1947 enabled_stream_buffers_mask
|= (1 << so
->output
[i
].output_buffer
) << (so
->output
[i
].stream
* 4);
1948 sctx
->b
.streamout
.enabled_stream_buffers_mask
= enabled_stream_buffers_mask
;
1949 sctx
->b
.streamout
.stride_in_dw
= shader
->so
.stride
;
1952 bool si_update_shaders(struct si_context
*sctx
)
1954 struct pipe_context
*ctx
= (struct pipe_context
*)sctx
;
1955 struct si_state_rasterizer
*rs
= sctx
->queued
.named
.rasterizer
;
1958 /* Update stages before GS. */
1959 if (sctx
->tes_shader
.cso
) {
1960 if (!sctx
->tf_ring
) {
1961 si_init_tess_factor_ring(sctx
);
1967 r
= si_shader_select(ctx
, &sctx
->vs_shader
);
1970 si_pm4_bind_state(sctx
, ls
, sctx
->vs_shader
.current
->pm4
);
1972 if (sctx
->tcs_shader
.cso
) {
1973 r
= si_shader_select(ctx
, &sctx
->tcs_shader
);
1976 si_pm4_bind_state(sctx
, hs
, sctx
->tcs_shader
.current
->pm4
);
1978 if (!sctx
->fixed_func_tcs_shader
.cso
) {
1979 si_generate_fixed_func_tcs(sctx
);
1980 if (!sctx
->fixed_func_tcs_shader
.cso
)
1984 r
= si_shader_select(ctx
, &sctx
->fixed_func_tcs_shader
);
1987 si_pm4_bind_state(sctx
, hs
,
1988 sctx
->fixed_func_tcs_shader
.current
->pm4
);
1991 r
= si_shader_select(ctx
, &sctx
->tes_shader
);
1995 if (sctx
->gs_shader
.cso
) {
1997 si_pm4_bind_state(sctx
, es
, sctx
->tes_shader
.current
->pm4
);
2000 si_pm4_bind_state(sctx
, vs
, sctx
->tes_shader
.current
->pm4
);
2001 si_update_so(sctx
, sctx
->tes_shader
.cso
);
2003 } else if (sctx
->gs_shader
.cso
) {
2005 r
= si_shader_select(ctx
, &sctx
->vs_shader
);
2008 si_pm4_bind_state(sctx
, es
, sctx
->vs_shader
.current
->pm4
);
2011 r
= si_shader_select(ctx
, &sctx
->vs_shader
);
2014 si_pm4_bind_state(sctx
, vs
, sctx
->vs_shader
.current
->pm4
);
2015 si_update_so(sctx
, sctx
->vs_shader
.cso
);
2019 if (sctx
->gs_shader
.cso
) {
2020 r
= si_shader_select(ctx
, &sctx
->gs_shader
);
2023 si_pm4_bind_state(sctx
, gs
, sctx
->gs_shader
.current
->pm4
);
2024 si_pm4_bind_state(sctx
, vs
, sctx
->gs_shader
.current
->gs_copy_shader
->pm4
);
2025 si_update_so(sctx
, sctx
->gs_shader
.cso
);
2027 if (!si_update_gs_ring_buffers(sctx
))
2030 si_update_gsvs_ring_bindings(sctx
);
2032 si_pm4_bind_state(sctx
, gs
, NULL
);
2033 si_pm4_bind_state(sctx
, es
, NULL
);
2036 si_update_vgt_shader_config(sctx
);
2038 if (sctx
->ps_shader
.cso
) {
2039 unsigned db_shader_control
;
2041 r
= si_shader_select(ctx
, &sctx
->ps_shader
);
2044 si_pm4_bind_state(sctx
, ps
, sctx
->ps_shader
.current
->pm4
);
2047 sctx
->ps_shader
.cso
->db_shader_control
|
2048 S_02880C_KILL_ENABLE(si_get_alpha_test_func(sctx
) != PIPE_FUNC_ALWAYS
) |
2049 S_02880C_Z_ORDER(sctx
->ps_shader
.current
->z_order
);
2051 if (si_pm4_state_changed(sctx
, ps
) || si_pm4_state_changed(sctx
, vs
) ||
2052 sctx
->sprite_coord_enable
!= rs
->sprite_coord_enable
||
2053 sctx
->flatshade
!= rs
->flatshade
) {
2054 sctx
->sprite_coord_enable
= rs
->sprite_coord_enable
;
2055 sctx
->flatshade
= rs
->flatshade
;
2056 si_mark_atom_dirty(sctx
, &sctx
->spi_map
);
2059 if (sctx
->b
.family
== CHIP_STONEY
&& si_pm4_state_changed(sctx
, ps
))
2060 si_mark_atom_dirty(sctx
, &sctx
->cb_render_state
);
2062 if (sctx
->ps_db_shader_control
!= db_shader_control
) {
2063 sctx
->ps_db_shader_control
= db_shader_control
;
2064 si_mark_atom_dirty(sctx
, &sctx
->db_render_state
);
2067 if (sctx
->smoothing_enabled
!= sctx
->ps_shader
.current
->key
.ps
.epilog
.poly_line_smoothing
) {
2068 sctx
->smoothing_enabled
= sctx
->ps_shader
.current
->key
.ps
.epilog
.poly_line_smoothing
;
2069 si_mark_atom_dirty(sctx
, &sctx
->msaa_config
);
2071 if (sctx
->b
.chip_class
== SI
)
2072 si_mark_atom_dirty(sctx
, &sctx
->db_render_state
);
2076 if (si_pm4_state_changed(sctx
, ls
) ||
2077 si_pm4_state_changed(sctx
, hs
) ||
2078 si_pm4_state_changed(sctx
, es
) ||
2079 si_pm4_state_changed(sctx
, gs
) ||
2080 si_pm4_state_changed(sctx
, vs
) ||
2081 si_pm4_state_changed(sctx
, ps
)) {
2082 if (!si_update_spi_tmpring_size(sctx
))
2088 void si_init_shader_functions(struct si_context
*sctx
)
2090 si_init_atom(sctx
, &sctx
->spi_map
, &sctx
->atoms
.s
.spi_map
, si_emit_spi_map
);
2092 sctx
->b
.b
.create_vs_state
= si_create_shader_selector
;
2093 sctx
->b
.b
.create_tcs_state
= si_create_shader_selector
;
2094 sctx
->b
.b
.create_tes_state
= si_create_shader_selector
;
2095 sctx
->b
.b
.create_gs_state
= si_create_shader_selector
;
2096 sctx
->b
.b
.create_fs_state
= si_create_shader_selector
;
2098 sctx
->b
.b
.bind_vs_state
= si_bind_vs_shader
;
2099 sctx
->b
.b
.bind_tcs_state
= si_bind_tcs_shader
;
2100 sctx
->b
.b
.bind_tes_state
= si_bind_tes_shader
;
2101 sctx
->b
.b
.bind_gs_state
= si_bind_gs_shader
;
2102 sctx
->b
.b
.bind_fs_state
= si_bind_ps_shader
;
2104 sctx
->b
.b
.delete_vs_state
= si_delete_shader_selector
;
2105 sctx
->b
.b
.delete_tcs_state
= si_delete_shader_selector
;
2106 sctx
->b
.b
.delete_tes_state
= si_delete_shader_selector
;
2107 sctx
->b
.b
.delete_gs_state
= si_delete_shader_selector
;
2108 sctx
->b
.b
.delete_fs_state
= si_delete_shader_selector
;