2 * Copyright © 2010 Intel Corporation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * 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 NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
28 #include "brw_vec4_tes.h"
29 #include "common/gen_debug.h"
30 #include "main/uniforms.h"
31 #include "util/macros.h"
34 brw_type_for_base_type(const struct glsl_type
*type
)
36 switch (type
->base_type
) {
37 case GLSL_TYPE_FLOAT16
:
38 return BRW_REGISTER_TYPE_HF
;
40 return BRW_REGISTER_TYPE_F
;
43 case GLSL_TYPE_SUBROUTINE
:
44 return BRW_REGISTER_TYPE_D
;
46 return BRW_REGISTER_TYPE_W
;
48 return BRW_REGISTER_TYPE_UD
;
49 case GLSL_TYPE_UINT16
:
50 return BRW_REGISTER_TYPE_UW
;
52 return brw_type_for_base_type(type
->fields
.array
);
53 case GLSL_TYPE_STRUCT
:
54 case GLSL_TYPE_SAMPLER
:
55 case GLSL_TYPE_ATOMIC_UINT
:
56 /* These should be overridden with the type of the member when
57 * dereferenced into. BRW_REGISTER_TYPE_UD seems like a likely
58 * way to trip up if we don't.
60 return BRW_REGISTER_TYPE_UD
;
62 return BRW_REGISTER_TYPE_UD
;
63 case GLSL_TYPE_DOUBLE
:
64 return BRW_REGISTER_TYPE_DF
;
65 case GLSL_TYPE_UINT64
:
66 return BRW_REGISTER_TYPE_UQ
;
68 return BRW_REGISTER_TYPE_Q
;
71 case GLSL_TYPE_INTERFACE
:
72 case GLSL_TYPE_FUNCTION
:
73 unreachable("not reached");
76 return BRW_REGISTER_TYPE_F
;
79 enum brw_conditional_mod
80 brw_conditional_for_comparison(unsigned int op
)
84 return BRW_CONDITIONAL_L
;
86 return BRW_CONDITIONAL_GE
;
88 case ir_binop_all_equal
: /* same as equal for scalars */
89 return BRW_CONDITIONAL_Z
;
91 case ir_binop_any_nequal
: /* same as nequal for scalars */
92 return BRW_CONDITIONAL_NZ
;
94 unreachable("not reached: bad operation for comparison");
99 brw_math_function(enum opcode op
)
102 case SHADER_OPCODE_RCP
:
103 return BRW_MATH_FUNCTION_INV
;
104 case SHADER_OPCODE_RSQ
:
105 return BRW_MATH_FUNCTION_RSQ
;
106 case SHADER_OPCODE_SQRT
:
107 return BRW_MATH_FUNCTION_SQRT
;
108 case SHADER_OPCODE_EXP2
:
109 return BRW_MATH_FUNCTION_EXP
;
110 case SHADER_OPCODE_LOG2
:
111 return BRW_MATH_FUNCTION_LOG
;
112 case SHADER_OPCODE_POW
:
113 return BRW_MATH_FUNCTION_POW
;
114 case SHADER_OPCODE_SIN
:
115 return BRW_MATH_FUNCTION_SIN
;
116 case SHADER_OPCODE_COS
:
117 return BRW_MATH_FUNCTION_COS
;
118 case SHADER_OPCODE_INT_QUOTIENT
:
119 return BRW_MATH_FUNCTION_INT_DIV_QUOTIENT
;
120 case SHADER_OPCODE_INT_REMAINDER
:
121 return BRW_MATH_FUNCTION_INT_DIV_REMAINDER
;
123 unreachable("not reached: unknown math function");
128 brw_texture_offset(int *offsets
, unsigned num_components
, uint32_t *offset_bits
)
130 if (!offsets
) return false; /* nonconstant offset; caller will handle it. */
132 /* offset out of bounds; caller will handle it. */
133 for (unsigned i
= 0; i
< num_components
; i
++)
134 if (offsets
[i
] > 7 || offsets
[i
] < -8)
137 /* Combine all three offsets into a single unsigned dword:
139 * bits 11:8 - U Offset (X component)
140 * bits 7:4 - V Offset (Y component)
141 * bits 3:0 - R Offset (Z component)
144 for (unsigned i
= 0; i
< num_components
; i
++) {
145 const unsigned shift
= 4 * (2 - i
);
146 *offset_bits
|= (offsets
[i
] << shift
) & (0xF << shift
);
152 brw_instruction_name(const struct gen_device_info
*devinfo
, enum opcode op
)
155 case BRW_OPCODE_ILLEGAL
... BRW_OPCODE_NOP
:
156 /* The DO instruction doesn't exist on Gen6+, but we use it to mark the
157 * start of a loop in the IR.
159 if (devinfo
->gen
>= 6 && op
== BRW_OPCODE_DO
)
162 /* The following conversion opcodes doesn't exist on Gen8+, but we use
163 * then to mark that we want to do the conversion.
165 if (devinfo
->gen
> 7 && op
== BRW_OPCODE_F32TO16
)
168 if (devinfo
->gen
> 7 && op
== BRW_OPCODE_F16TO32
)
171 assert(brw_opcode_desc(devinfo
, op
)->name
);
172 return brw_opcode_desc(devinfo
, op
)->name
;
173 case FS_OPCODE_FB_WRITE
:
175 case FS_OPCODE_FB_WRITE_LOGICAL
:
176 return "fb_write_logical";
177 case FS_OPCODE_REP_FB_WRITE
:
178 return "rep_fb_write";
179 case FS_OPCODE_FB_READ
:
181 case FS_OPCODE_FB_READ_LOGICAL
:
182 return "fb_read_logical";
184 case SHADER_OPCODE_RCP
:
186 case SHADER_OPCODE_RSQ
:
188 case SHADER_OPCODE_SQRT
:
190 case SHADER_OPCODE_EXP2
:
192 case SHADER_OPCODE_LOG2
:
194 case SHADER_OPCODE_POW
:
196 case SHADER_OPCODE_INT_QUOTIENT
:
198 case SHADER_OPCODE_INT_REMAINDER
:
200 case SHADER_OPCODE_SIN
:
202 case SHADER_OPCODE_COS
:
205 case SHADER_OPCODE_TEX
:
207 case SHADER_OPCODE_TEX_LOGICAL
:
208 return "tex_logical";
209 case SHADER_OPCODE_TXD
:
211 case SHADER_OPCODE_TXD_LOGICAL
:
212 return "txd_logical";
213 case SHADER_OPCODE_TXF
:
215 case SHADER_OPCODE_TXF_LOGICAL
:
216 return "txf_logical";
217 case SHADER_OPCODE_TXF_LZ
:
219 case SHADER_OPCODE_TXL
:
221 case SHADER_OPCODE_TXL_LOGICAL
:
222 return "txl_logical";
223 case SHADER_OPCODE_TXL_LZ
:
225 case SHADER_OPCODE_TXS
:
227 case SHADER_OPCODE_TXS_LOGICAL
:
228 return "txs_logical";
231 case FS_OPCODE_TXB_LOGICAL
:
232 return "txb_logical";
233 case SHADER_OPCODE_TXF_CMS
:
235 case SHADER_OPCODE_TXF_CMS_LOGICAL
:
236 return "txf_cms_logical";
237 case SHADER_OPCODE_TXF_CMS_W
:
239 case SHADER_OPCODE_TXF_CMS_W_LOGICAL
:
240 return "txf_cms_w_logical";
241 case SHADER_OPCODE_TXF_UMS
:
243 case SHADER_OPCODE_TXF_UMS_LOGICAL
:
244 return "txf_ums_logical";
245 case SHADER_OPCODE_TXF_MCS
:
247 case SHADER_OPCODE_TXF_MCS_LOGICAL
:
248 return "txf_mcs_logical";
249 case SHADER_OPCODE_LOD
:
251 case SHADER_OPCODE_LOD_LOGICAL
:
252 return "lod_logical";
253 case SHADER_OPCODE_TG4
:
255 case SHADER_OPCODE_TG4_LOGICAL
:
256 return "tg4_logical";
257 case SHADER_OPCODE_TG4_OFFSET
:
259 case SHADER_OPCODE_TG4_OFFSET_LOGICAL
:
260 return "tg4_offset_logical";
261 case SHADER_OPCODE_SAMPLEINFO
:
263 case SHADER_OPCODE_SAMPLEINFO_LOGICAL
:
264 return "sampleinfo_logical";
266 case SHADER_OPCODE_SHADER_TIME_ADD
:
267 return "shader_time_add";
269 case SHADER_OPCODE_UNTYPED_ATOMIC
:
270 return "untyped_atomic";
271 case SHADER_OPCODE_UNTYPED_ATOMIC_LOGICAL
:
272 return "untyped_atomic_logical";
273 case SHADER_OPCODE_UNTYPED_SURFACE_READ
:
274 return "untyped_surface_read";
275 case SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL
:
276 return "untyped_surface_read_logical";
277 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE
:
278 return "untyped_surface_write";
279 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL
:
280 return "untyped_surface_write_logical";
281 case SHADER_OPCODE_TYPED_ATOMIC
:
282 return "typed_atomic";
283 case SHADER_OPCODE_TYPED_ATOMIC_LOGICAL
:
284 return "typed_atomic_logical";
285 case SHADER_OPCODE_TYPED_SURFACE_READ
:
286 return "typed_surface_read";
287 case SHADER_OPCODE_TYPED_SURFACE_READ_LOGICAL
:
288 return "typed_surface_read_logical";
289 case SHADER_OPCODE_TYPED_SURFACE_WRITE
:
290 return "typed_surface_write";
291 case SHADER_OPCODE_TYPED_SURFACE_WRITE_LOGICAL
:
292 return "typed_surface_write_logical";
293 case SHADER_OPCODE_MEMORY_FENCE
:
294 return "memory_fence";
296 case SHADER_OPCODE_BYTE_SCATTERED_READ
:
297 return "byte_scattered_read";
298 case SHADER_OPCODE_BYTE_SCATTERED_READ_LOGICAL
:
299 return "byte_scattered_read_logical";
300 case SHADER_OPCODE_BYTE_SCATTERED_WRITE
:
301 return "byte_scattered_write";
302 case SHADER_OPCODE_BYTE_SCATTERED_WRITE_LOGICAL
:
303 return "byte_scattered_write_logical";
305 case SHADER_OPCODE_LOAD_PAYLOAD
:
306 return "load_payload";
310 case SHADER_OPCODE_GEN4_SCRATCH_READ
:
311 return "gen4_scratch_read";
312 case SHADER_OPCODE_GEN4_SCRATCH_WRITE
:
313 return "gen4_scratch_write";
314 case SHADER_OPCODE_GEN7_SCRATCH_READ
:
315 return "gen7_scratch_read";
316 case SHADER_OPCODE_URB_WRITE_SIMD8
:
317 return "gen8_urb_write_simd8";
318 case SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT
:
319 return "gen8_urb_write_simd8_per_slot";
320 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED
:
321 return "gen8_urb_write_simd8_masked";
322 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT
:
323 return "gen8_urb_write_simd8_masked_per_slot";
324 case SHADER_OPCODE_URB_READ_SIMD8
:
325 return "urb_read_simd8";
326 case SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT
:
327 return "urb_read_simd8_per_slot";
329 case SHADER_OPCODE_FIND_LIVE_CHANNEL
:
330 return "find_live_channel";
331 case SHADER_OPCODE_BROADCAST
:
333 case SHADER_OPCODE_SHUFFLE
:
336 case SHADER_OPCODE_GET_BUFFER_SIZE
:
337 return "get_buffer_size";
339 case VEC4_OPCODE_MOV_BYTES
:
341 case VEC4_OPCODE_PACK_BYTES
:
343 case VEC4_OPCODE_UNPACK_UNIFORM
:
344 return "unpack_uniform";
345 case VEC4_OPCODE_DOUBLE_TO_F32
:
346 return "double_to_f32";
347 case VEC4_OPCODE_DOUBLE_TO_D32
:
348 return "double_to_d32";
349 case VEC4_OPCODE_DOUBLE_TO_U32
:
350 return "double_to_u32";
351 case VEC4_OPCODE_TO_DOUBLE
:
352 return "single_to_double";
353 case VEC4_OPCODE_PICK_LOW_32BIT
:
354 return "pick_low_32bit";
355 case VEC4_OPCODE_PICK_HIGH_32BIT
:
356 return "pick_high_32bit";
357 case VEC4_OPCODE_SET_LOW_32BIT
:
358 return "set_low_32bit";
359 case VEC4_OPCODE_SET_HIGH_32BIT
:
360 return "set_high_32bit";
362 case FS_OPCODE_DDX_COARSE
:
364 case FS_OPCODE_DDX_FINE
:
366 case FS_OPCODE_DDY_COARSE
:
368 case FS_OPCODE_DDY_FINE
:
371 case FS_OPCODE_CINTERP
:
373 case FS_OPCODE_LINTERP
:
376 case FS_OPCODE_PIXEL_X
:
378 case FS_OPCODE_PIXEL_Y
:
381 case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD
:
382 return "uniform_pull_const";
383 case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD_GEN7
:
384 return "uniform_pull_const_gen7";
385 case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN4
:
386 return "varying_pull_const_gen4";
387 case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN7
:
388 return "varying_pull_const_gen7";
389 case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_LOGICAL
:
390 return "varying_pull_const_logical";
392 case FS_OPCODE_MOV_DISPATCH_TO_FLAGS
:
393 return "mov_dispatch_to_flags";
394 case FS_OPCODE_DISCARD_JUMP
:
395 return "discard_jump";
397 case FS_OPCODE_SET_SAMPLE_ID
:
398 return "set_sample_id";
400 case FS_OPCODE_PACK_HALF_2x16_SPLIT
:
401 return "pack_half_2x16_split";
402 case FS_OPCODE_UNPACK_HALF_2x16_SPLIT_X
:
403 return "unpack_half_2x16_split_x";
404 case FS_OPCODE_UNPACK_HALF_2x16_SPLIT_Y
:
405 return "unpack_half_2x16_split_y";
407 case FS_OPCODE_PLACEHOLDER_HALT
:
408 return "placeholder_halt";
410 case FS_OPCODE_INTERPOLATE_AT_SAMPLE
:
411 return "interp_sample";
412 case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET
:
413 return "interp_shared_offset";
414 case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET
:
415 return "interp_per_slot_offset";
417 case VS_OPCODE_URB_WRITE
:
418 return "vs_urb_write";
419 case VS_OPCODE_PULL_CONSTANT_LOAD
:
420 return "pull_constant_load";
421 case VS_OPCODE_PULL_CONSTANT_LOAD_GEN7
:
422 return "pull_constant_load_gen7";
424 case VS_OPCODE_SET_SIMD4X2_HEADER_GEN9
:
425 return "set_simd4x2_header_gen9";
427 case VS_OPCODE_UNPACK_FLAGS_SIMD4X2
:
428 return "unpack_flags_simd4x2";
430 case GS_OPCODE_URB_WRITE
:
431 return "gs_urb_write";
432 case GS_OPCODE_URB_WRITE_ALLOCATE
:
433 return "gs_urb_write_allocate";
434 case GS_OPCODE_THREAD_END
:
435 return "gs_thread_end";
436 case GS_OPCODE_SET_WRITE_OFFSET
:
437 return "set_write_offset";
438 case GS_OPCODE_SET_VERTEX_COUNT
:
439 return "set_vertex_count";
440 case GS_OPCODE_SET_DWORD_2
:
441 return "set_dword_2";
442 case GS_OPCODE_PREPARE_CHANNEL_MASKS
:
443 return "prepare_channel_masks";
444 case GS_OPCODE_SET_CHANNEL_MASKS
:
445 return "set_channel_masks";
446 case GS_OPCODE_GET_INSTANCE_ID
:
447 return "get_instance_id";
448 case GS_OPCODE_FF_SYNC
:
450 case GS_OPCODE_SET_PRIMITIVE_ID
:
451 return "set_primitive_id";
452 case GS_OPCODE_SVB_WRITE
:
453 return "gs_svb_write";
454 case GS_OPCODE_SVB_SET_DST_INDEX
:
455 return "gs_svb_set_dst_index";
456 case GS_OPCODE_FF_SYNC_SET_PRIMITIVES
:
457 return "gs_ff_sync_set_primitives";
458 case CS_OPCODE_CS_TERMINATE
:
459 return "cs_terminate";
460 case SHADER_OPCODE_BARRIER
:
462 case SHADER_OPCODE_MULH
:
464 case SHADER_OPCODE_MOV_INDIRECT
:
465 return "mov_indirect";
467 case VEC4_OPCODE_URB_READ
:
469 case TCS_OPCODE_GET_INSTANCE_ID
:
470 return "tcs_get_instance_id";
471 case TCS_OPCODE_URB_WRITE
:
472 return "tcs_urb_write";
473 case TCS_OPCODE_SET_INPUT_URB_OFFSETS
:
474 return "tcs_set_input_urb_offsets";
475 case TCS_OPCODE_SET_OUTPUT_URB_OFFSETS
:
476 return "tcs_set_output_urb_offsets";
477 case TCS_OPCODE_GET_PRIMITIVE_ID
:
478 return "tcs_get_primitive_id";
479 case TCS_OPCODE_CREATE_BARRIER_HEADER
:
480 return "tcs_create_barrier_header";
481 case TCS_OPCODE_SRC0_010_IS_ZERO
:
482 return "tcs_src0<0,1,0>_is_zero";
483 case TCS_OPCODE_RELEASE_INPUT
:
484 return "tcs_release_input";
485 case TCS_OPCODE_THREAD_END
:
486 return "tcs_thread_end";
487 case TES_OPCODE_CREATE_INPUT_READ_HEADER
:
488 return "tes_create_input_read_header";
489 case TES_OPCODE_ADD_INDIRECT_URB_OFFSET
:
490 return "tes_add_indirect_urb_offset";
491 case TES_OPCODE_GET_PRIMITIVE_ID
:
492 return "tes_get_primitive_id";
494 case SHADER_OPCODE_RND_MODE
:
498 unreachable("not reached");
502 brw_saturate_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
509 } imm
, sat_imm
= { 0 };
511 const unsigned size
= type_sz(type
);
513 /* We want to either do a 32-bit or 64-bit data copy, the type is otherwise
514 * irrelevant, so just check the size of the type and copy from/to an
515 * appropriately sized field.
523 case BRW_REGISTER_TYPE_UD
:
524 case BRW_REGISTER_TYPE_D
:
525 case BRW_REGISTER_TYPE_UW
:
526 case BRW_REGISTER_TYPE_W
:
527 case BRW_REGISTER_TYPE_UQ
:
528 case BRW_REGISTER_TYPE_Q
:
531 case BRW_REGISTER_TYPE_F
:
532 sat_imm
.f
= CLAMP(imm
.f
, 0.0f
, 1.0f
);
534 case BRW_REGISTER_TYPE_DF
:
535 sat_imm
.df
= CLAMP(imm
.df
, 0.0, 1.0);
537 case BRW_REGISTER_TYPE_UB
:
538 case BRW_REGISTER_TYPE_B
:
539 unreachable("no UB/B immediates");
540 case BRW_REGISTER_TYPE_V
:
541 case BRW_REGISTER_TYPE_UV
:
542 case BRW_REGISTER_TYPE_VF
:
543 unreachable("unimplemented: saturate vector immediate");
544 case BRW_REGISTER_TYPE_HF
:
545 unreachable("unimplemented: saturate HF immediate");
546 case BRW_REGISTER_TYPE_NF
:
547 unreachable("no NF immediates");
551 if (imm
.ud
!= sat_imm
.ud
) {
552 reg
->ud
= sat_imm
.ud
;
556 if (imm
.df
!= sat_imm
.df
) {
557 reg
->df
= sat_imm
.df
;
565 brw_negate_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
568 case BRW_REGISTER_TYPE_D
:
569 case BRW_REGISTER_TYPE_UD
:
572 case BRW_REGISTER_TYPE_W
:
573 case BRW_REGISTER_TYPE_UW
:
574 reg
->d
= -(int16_t)reg
->ud
;
576 case BRW_REGISTER_TYPE_F
:
579 case BRW_REGISTER_TYPE_VF
:
580 reg
->ud
^= 0x80808080;
582 case BRW_REGISTER_TYPE_DF
:
585 case BRW_REGISTER_TYPE_UQ
:
586 case BRW_REGISTER_TYPE_Q
:
587 reg
->d64
= -reg
->d64
;
589 case BRW_REGISTER_TYPE_UB
:
590 case BRW_REGISTER_TYPE_B
:
591 unreachable("no UB/B immediates");
592 case BRW_REGISTER_TYPE_UV
:
593 case BRW_REGISTER_TYPE_V
:
594 assert(!"unimplemented: negate UV/V immediate");
595 case BRW_REGISTER_TYPE_HF
:
596 assert(!"unimplemented: negate HF immediate");
597 case BRW_REGISTER_TYPE_NF
:
598 unreachable("no NF immediates");
605 brw_abs_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
608 case BRW_REGISTER_TYPE_D
:
609 reg
->d
= abs(reg
->d
);
611 case BRW_REGISTER_TYPE_W
:
612 reg
->d
= abs((int16_t)reg
->ud
);
614 case BRW_REGISTER_TYPE_F
:
615 reg
->f
= fabsf(reg
->f
);
617 case BRW_REGISTER_TYPE_DF
:
618 reg
->df
= fabs(reg
->df
);
620 case BRW_REGISTER_TYPE_VF
:
621 reg
->ud
&= ~0x80808080;
623 case BRW_REGISTER_TYPE_Q
:
624 reg
->d64
= imaxabs(reg
->d64
);
626 case BRW_REGISTER_TYPE_UB
:
627 case BRW_REGISTER_TYPE_B
:
628 unreachable("no UB/B immediates");
629 case BRW_REGISTER_TYPE_UQ
:
630 case BRW_REGISTER_TYPE_UD
:
631 case BRW_REGISTER_TYPE_UW
:
632 case BRW_REGISTER_TYPE_UV
:
633 /* Presumably the absolute value modifier on an unsigned source is a
634 * nop, but it would be nice to confirm.
636 assert(!"unimplemented: abs unsigned immediate");
637 case BRW_REGISTER_TYPE_V
:
638 assert(!"unimplemented: abs V immediate");
639 case BRW_REGISTER_TYPE_HF
:
640 assert(!"unimplemented: abs HF immediate");
641 case BRW_REGISTER_TYPE_NF
:
642 unreachable("no NF immediates");
648 backend_shader::backend_shader(const struct brw_compiler
*compiler
,
651 const nir_shader
*shader
,
652 struct brw_stage_prog_data
*stage_prog_data
)
653 : compiler(compiler
),
655 devinfo(compiler
->devinfo
),
657 stage_prog_data(stage_prog_data
),
660 stage(shader
->info
.stage
)
662 debug_enabled
= INTEL_DEBUG
& intel_debug_flag_for_shader_stage(stage
);
663 stage_name
= _mesa_shader_stage_to_string(stage
);
664 stage_abbrev
= _mesa_shader_stage_to_abbrev(stage
);
667 backend_shader::~backend_shader()
672 backend_reg::equals(const backend_reg
&r
) const
674 return brw_regs_equal(this, &r
) && offset
== r
.offset
;
678 backend_reg::is_zero() const
684 case BRW_REGISTER_TYPE_F
:
686 case BRW_REGISTER_TYPE_DF
:
688 case BRW_REGISTER_TYPE_D
:
689 case BRW_REGISTER_TYPE_UD
:
691 case BRW_REGISTER_TYPE_UQ
:
692 case BRW_REGISTER_TYPE_Q
:
700 backend_reg::is_one() const
706 case BRW_REGISTER_TYPE_F
:
708 case BRW_REGISTER_TYPE_DF
:
710 case BRW_REGISTER_TYPE_D
:
711 case BRW_REGISTER_TYPE_UD
:
713 case BRW_REGISTER_TYPE_UQ
:
714 case BRW_REGISTER_TYPE_Q
:
722 backend_reg::is_negative_one() const
728 case BRW_REGISTER_TYPE_F
:
730 case BRW_REGISTER_TYPE_DF
:
732 case BRW_REGISTER_TYPE_D
:
734 case BRW_REGISTER_TYPE_Q
:
742 backend_reg::is_null() const
744 return file
== ARF
&& nr
== BRW_ARF_NULL
;
749 backend_reg::is_accumulator() const
751 return file
== ARF
&& nr
== BRW_ARF_ACCUMULATOR
;
755 backend_instruction::is_commutative() const
763 case SHADER_OPCODE_MULH
:
766 /* MIN and MAX are commutative. */
767 if (conditional_mod
== BRW_CONDITIONAL_GE
||
768 conditional_mod
== BRW_CONDITIONAL_L
) {
778 backend_instruction::is_3src(const struct gen_device_info
*devinfo
) const
780 return ::is_3src(devinfo
, opcode
);
784 backend_instruction::is_tex() const
786 return (opcode
== SHADER_OPCODE_TEX
||
787 opcode
== FS_OPCODE_TXB
||
788 opcode
== SHADER_OPCODE_TXD
||
789 opcode
== SHADER_OPCODE_TXF
||
790 opcode
== SHADER_OPCODE_TXF_LZ
||
791 opcode
== SHADER_OPCODE_TXF_CMS
||
792 opcode
== SHADER_OPCODE_TXF_CMS_W
||
793 opcode
== SHADER_OPCODE_TXF_UMS
||
794 opcode
== SHADER_OPCODE_TXF_MCS
||
795 opcode
== SHADER_OPCODE_TXL
||
796 opcode
== SHADER_OPCODE_TXL_LZ
||
797 opcode
== SHADER_OPCODE_TXS
||
798 opcode
== SHADER_OPCODE_LOD
||
799 opcode
== SHADER_OPCODE_TG4
||
800 opcode
== SHADER_OPCODE_TG4_OFFSET
||
801 opcode
== SHADER_OPCODE_SAMPLEINFO
);
805 backend_instruction::is_math() const
807 return (opcode
== SHADER_OPCODE_RCP
||
808 opcode
== SHADER_OPCODE_RSQ
||
809 opcode
== SHADER_OPCODE_SQRT
||
810 opcode
== SHADER_OPCODE_EXP2
||
811 opcode
== SHADER_OPCODE_LOG2
||
812 opcode
== SHADER_OPCODE_SIN
||
813 opcode
== SHADER_OPCODE_COS
||
814 opcode
== SHADER_OPCODE_INT_QUOTIENT
||
815 opcode
== SHADER_OPCODE_INT_REMAINDER
||
816 opcode
== SHADER_OPCODE_POW
);
820 backend_instruction::is_control_flow() const
824 case BRW_OPCODE_WHILE
:
826 case BRW_OPCODE_ELSE
:
827 case BRW_OPCODE_ENDIF
:
828 case BRW_OPCODE_BREAK
:
829 case BRW_OPCODE_CONTINUE
:
837 backend_instruction::can_do_source_mods() const
840 case BRW_OPCODE_ADDC
:
842 case BRW_OPCODE_BFI1
:
843 case BRW_OPCODE_BFI2
:
844 case BRW_OPCODE_BFREV
:
845 case BRW_OPCODE_CBIT
:
848 case BRW_OPCODE_SUBB
:
849 case SHADER_OPCODE_BROADCAST
:
850 case SHADER_OPCODE_MOV_INDIRECT
:
858 backend_instruction::can_do_saturate() const
868 case BRW_OPCODE_F16TO32
:
869 case BRW_OPCODE_F32TO16
:
870 case BRW_OPCODE_LINE
:
874 case BRW_OPCODE_MATH
:
877 case SHADER_OPCODE_MULH
:
879 case BRW_OPCODE_RNDD
:
880 case BRW_OPCODE_RNDE
:
881 case BRW_OPCODE_RNDU
:
882 case BRW_OPCODE_RNDZ
:
886 case FS_OPCODE_LINTERP
:
887 case SHADER_OPCODE_COS
:
888 case SHADER_OPCODE_EXP2
:
889 case SHADER_OPCODE_LOG2
:
890 case SHADER_OPCODE_POW
:
891 case SHADER_OPCODE_RCP
:
892 case SHADER_OPCODE_RSQ
:
893 case SHADER_OPCODE_SIN
:
894 case SHADER_OPCODE_SQRT
:
902 backend_instruction::can_do_cmod() const
906 case BRW_OPCODE_ADDC
:
911 case BRW_OPCODE_CMPN
:
916 case BRW_OPCODE_F16TO32
:
917 case BRW_OPCODE_F32TO16
:
919 case BRW_OPCODE_LINE
:
923 case BRW_OPCODE_MACH
:
930 case BRW_OPCODE_RNDD
:
931 case BRW_OPCODE_RNDE
:
932 case BRW_OPCODE_RNDU
:
933 case BRW_OPCODE_RNDZ
:
934 case BRW_OPCODE_SAD2
:
935 case BRW_OPCODE_SADA2
:
938 case BRW_OPCODE_SUBB
:
940 case FS_OPCODE_CINTERP
:
941 case FS_OPCODE_LINTERP
:
949 backend_instruction::reads_accumulator_implicitly() const
953 case BRW_OPCODE_MACH
:
954 case BRW_OPCODE_SADA2
:
962 backend_instruction::writes_accumulator_implicitly(const struct gen_device_info
*devinfo
) const
964 return writes_accumulator
||
966 ((opcode
>= BRW_OPCODE_ADD
&& opcode
< BRW_OPCODE_NOP
) ||
967 (opcode
>= FS_OPCODE_DDX_COARSE
&& opcode
<= FS_OPCODE_LINTERP
&&
968 opcode
!= FS_OPCODE_CINTERP
)));
972 backend_instruction::has_side_effects() const
975 case SHADER_OPCODE_UNTYPED_ATOMIC
:
976 case SHADER_OPCODE_UNTYPED_ATOMIC_LOGICAL
:
977 case SHADER_OPCODE_GEN4_SCRATCH_WRITE
:
978 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE
:
979 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL
:
980 case SHADER_OPCODE_BYTE_SCATTERED_WRITE
:
981 case SHADER_OPCODE_BYTE_SCATTERED_WRITE_LOGICAL
:
982 case SHADER_OPCODE_TYPED_ATOMIC
:
983 case SHADER_OPCODE_TYPED_ATOMIC_LOGICAL
:
984 case SHADER_OPCODE_TYPED_SURFACE_WRITE
:
985 case SHADER_OPCODE_TYPED_SURFACE_WRITE_LOGICAL
:
986 case SHADER_OPCODE_MEMORY_FENCE
:
987 case SHADER_OPCODE_URB_WRITE_SIMD8
:
988 case SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT
:
989 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED
:
990 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT
:
991 case FS_OPCODE_FB_WRITE
:
992 case FS_OPCODE_FB_WRITE_LOGICAL
:
993 case SHADER_OPCODE_BARRIER
:
994 case TCS_OPCODE_URB_WRITE
:
995 case TCS_OPCODE_RELEASE_INPUT
:
996 case SHADER_OPCODE_RND_MODE
:
1004 backend_instruction::is_volatile() const
1007 case SHADER_OPCODE_UNTYPED_SURFACE_READ
:
1008 case SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL
:
1009 case SHADER_OPCODE_TYPED_SURFACE_READ
:
1010 case SHADER_OPCODE_TYPED_SURFACE_READ_LOGICAL
:
1011 case SHADER_OPCODE_BYTE_SCATTERED_READ
:
1012 case SHADER_OPCODE_BYTE_SCATTERED_READ_LOGICAL
:
1013 case SHADER_OPCODE_URB_READ_SIMD8
:
1014 case SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT
:
1015 case VEC4_OPCODE_URB_READ
:
1024 inst_is_in_block(const bblock_t
*block
, const backend_instruction
*inst
)
1027 foreach_inst_in_block (backend_instruction
, i
, block
) {
1037 adjust_later_block_ips(bblock_t
*start_block
, int ip_adjustment
)
1039 for (bblock_t
*block_iter
= start_block
->next();
1041 block_iter
= block_iter
->next()) {
1042 block_iter
->start_ip
+= ip_adjustment
;
1043 block_iter
->end_ip
+= ip_adjustment
;
1048 backend_instruction::insert_after(bblock_t
*block
, backend_instruction
*inst
)
1050 assert(this != inst
);
1052 if (!this->is_head_sentinel())
1053 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1057 adjust_later_block_ips(block
, 1);
1059 exec_node::insert_after(inst
);
1063 backend_instruction::insert_before(bblock_t
*block
, backend_instruction
*inst
)
1065 assert(this != inst
);
1067 if (!this->is_tail_sentinel())
1068 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1072 adjust_later_block_ips(block
, 1);
1074 exec_node::insert_before(inst
);
1078 backend_instruction::insert_before(bblock_t
*block
, exec_list
*list
)
1080 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1082 unsigned num_inst
= list
->length();
1084 block
->end_ip
+= num_inst
;
1086 adjust_later_block_ips(block
, num_inst
);
1088 exec_node::insert_before(list
);
1092 backend_instruction::remove(bblock_t
*block
)
1094 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1096 adjust_later_block_ips(block
, -1);
1098 if (block
->start_ip
== block
->end_ip
) {
1099 block
->cfg
->remove_block(block
);
1104 exec_node::remove();
1108 backend_shader::dump_instructions()
1110 dump_instructions(NULL
);
1114 backend_shader::dump_instructions(const char *name
)
1116 FILE *file
= stderr
;
1117 if (name
&& geteuid() != 0) {
1118 file
= fopen(name
, "w");
1125 foreach_block_and_inst(block
, backend_instruction
, inst
, cfg
) {
1126 if (!unlikely(INTEL_DEBUG
& DEBUG_OPTIMIZER
))
1127 fprintf(file
, "%4d: ", ip
++);
1128 dump_instruction(inst
, file
);
1132 foreach_in_list(backend_instruction
, inst
, &instructions
) {
1133 if (!unlikely(INTEL_DEBUG
& DEBUG_OPTIMIZER
))
1134 fprintf(file
, "%4d: ", ip
++);
1135 dump_instruction(inst
, file
);
1139 if (file
!= stderr
) {
1145 backend_shader::calculate_cfg()
1149 cfg
= new(mem_ctx
) cfg_t(&this->instructions
);
1152 extern "C" const unsigned *
1153 brw_compile_tes(const struct brw_compiler
*compiler
,
1156 const struct brw_tes_prog_key
*key
,
1157 const struct brw_vue_map
*input_vue_map
,
1158 struct brw_tes_prog_data
*prog_data
,
1159 const nir_shader
*src_shader
,
1160 struct gl_program
*prog
,
1161 int shader_time_index
,
1164 const struct gen_device_info
*devinfo
= compiler
->devinfo
;
1165 const bool is_scalar
= compiler
->scalar_stage
[MESA_SHADER_TESS_EVAL
];
1166 const unsigned *assembly
;
1168 nir_shader
*nir
= nir_shader_clone(mem_ctx
, src_shader
);
1169 nir
->info
.inputs_read
= key
->inputs_read
;
1170 nir
->info
.patch_inputs_read
= key
->patch_inputs_read
;
1172 nir
= brw_nir_apply_sampler_key(nir
, compiler
, &key
->tex
, is_scalar
);
1173 brw_nir_lower_tes_inputs(nir
, input_vue_map
);
1174 brw_nir_lower_vue_outputs(nir
, is_scalar
);
1175 nir
= brw_postprocess_nir(nir
, compiler
, is_scalar
);
1177 brw_compute_vue_map(devinfo
, &prog_data
->base
.vue_map
,
1178 nir
->info
.outputs_written
,
1179 nir
->info
.separate_shader
);
1181 unsigned output_size_bytes
= prog_data
->base
.vue_map
.num_slots
* 4 * 4;
1183 assert(output_size_bytes
>= 1);
1184 if (output_size_bytes
> GEN7_MAX_DS_URB_ENTRY_SIZE_BYTES
) {
1186 *error_str
= ralloc_strdup(mem_ctx
, "DS outputs exceed maximum size");
1190 prog_data
->base
.clip_distance_mask
=
1191 ((1 << nir
->info
.clip_distance_array_size
) - 1);
1192 prog_data
->base
.cull_distance_mask
=
1193 ((1 << nir
->info
.cull_distance_array_size
) - 1) <<
1194 nir
->info
.clip_distance_array_size
;
1196 /* URB entry sizes are stored as a multiple of 64 bytes. */
1197 prog_data
->base
.urb_entry_size
= ALIGN(output_size_bytes
, 64) / 64;
1199 /* On Cannonlake software shall not program an allocation size that
1200 * specifies a size that is a multiple of 3 64B (512-bit) cachelines.
1202 if (devinfo
->gen
== 10 &&
1203 prog_data
->base
.urb_entry_size
% 3 == 0)
1204 prog_data
->base
.urb_entry_size
++;
1206 prog_data
->base
.urb_read_length
= 0;
1208 STATIC_ASSERT(BRW_TESS_PARTITIONING_INTEGER
== TESS_SPACING_EQUAL
- 1);
1209 STATIC_ASSERT(BRW_TESS_PARTITIONING_ODD_FRACTIONAL
==
1210 TESS_SPACING_FRACTIONAL_ODD
- 1);
1211 STATIC_ASSERT(BRW_TESS_PARTITIONING_EVEN_FRACTIONAL
==
1212 TESS_SPACING_FRACTIONAL_EVEN
- 1);
1214 prog_data
->partitioning
=
1215 (enum brw_tess_partitioning
) (nir
->info
.tess
.spacing
- 1);
1217 switch (nir
->info
.tess
.primitive_mode
) {
1219 prog_data
->domain
= BRW_TESS_DOMAIN_QUAD
;
1222 prog_data
->domain
= BRW_TESS_DOMAIN_TRI
;
1225 prog_data
->domain
= BRW_TESS_DOMAIN_ISOLINE
;
1228 unreachable("invalid domain shader primitive mode");
1231 if (nir
->info
.tess
.point_mode
) {
1232 prog_data
->output_topology
= BRW_TESS_OUTPUT_TOPOLOGY_POINT
;
1233 } else if (nir
->info
.tess
.primitive_mode
== GL_ISOLINES
) {
1234 prog_data
->output_topology
= BRW_TESS_OUTPUT_TOPOLOGY_LINE
;
1236 /* Hardware winding order is backwards from OpenGL */
1237 prog_data
->output_topology
=
1238 nir
->info
.tess
.ccw
? BRW_TESS_OUTPUT_TOPOLOGY_TRI_CW
1239 : BRW_TESS_OUTPUT_TOPOLOGY_TRI_CCW
;
1242 if (unlikely(INTEL_DEBUG
& DEBUG_TES
)) {
1243 fprintf(stderr
, "TES Input ");
1244 brw_print_vue_map(stderr
, input_vue_map
);
1245 fprintf(stderr
, "TES Output ");
1246 brw_print_vue_map(stderr
, &prog_data
->base
.vue_map
);
1250 fs_visitor
v(compiler
, log_data
, mem_ctx
, (void *) key
,
1251 &prog_data
->base
.base
, NULL
, nir
, 8,
1252 shader_time_index
, input_vue_map
);
1255 *error_str
= ralloc_strdup(mem_ctx
, v
.fail_msg
);
1259 prog_data
->base
.base
.dispatch_grf_start_reg
= v
.payload
.num_regs
;
1260 prog_data
->base
.dispatch_mode
= DISPATCH_MODE_SIMD8
;
1262 fs_generator
g(compiler
, log_data
, mem_ctx
, (void *) key
,
1263 &prog_data
->base
.base
, v
.promoted_constants
, false,
1264 MESA_SHADER_TESS_EVAL
);
1265 if (unlikely(INTEL_DEBUG
& DEBUG_TES
)) {
1266 g
.enable_debug(ralloc_asprintf(mem_ctx
,
1267 "%s tessellation evaluation shader %s",
1268 nir
->info
.label
? nir
->info
.label
1273 g
.generate_code(v
.cfg
, 8);
1275 assembly
= g
.get_assembly();
1277 brw::vec4_tes_visitor
v(compiler
, log_data
, key
, prog_data
,
1278 nir
, mem_ctx
, shader_time_index
);
1281 *error_str
= ralloc_strdup(mem_ctx
, v
.fail_msg
);
1285 if (unlikely(INTEL_DEBUG
& DEBUG_TES
))
1286 v
.dump_instructions();
1288 assembly
= brw_vec4_generate_assembly(compiler
, log_data
, mem_ctx
, nir
,
1289 &prog_data
->base
, v
.cfg
);