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_B
;
50 return BRW_REGISTER_TYPE_UD
;
51 case GLSL_TYPE_UINT16
:
52 return BRW_REGISTER_TYPE_UW
;
54 return BRW_REGISTER_TYPE_UB
;
56 return brw_type_for_base_type(type
->fields
.array
);
57 case GLSL_TYPE_STRUCT
:
58 case GLSL_TYPE_SAMPLER
:
59 case GLSL_TYPE_ATOMIC_UINT
:
60 /* These should be overridden with the type of the member when
61 * dereferenced into. BRW_REGISTER_TYPE_UD seems like a likely
62 * way to trip up if we don't.
64 return BRW_REGISTER_TYPE_UD
;
66 return BRW_REGISTER_TYPE_UD
;
67 case GLSL_TYPE_DOUBLE
:
68 return BRW_REGISTER_TYPE_DF
;
69 case GLSL_TYPE_UINT64
:
70 return BRW_REGISTER_TYPE_UQ
;
72 return BRW_REGISTER_TYPE_Q
;
75 case GLSL_TYPE_INTERFACE
:
76 case GLSL_TYPE_FUNCTION
:
77 unreachable("not reached");
80 return BRW_REGISTER_TYPE_F
;
83 enum brw_conditional_mod
84 brw_conditional_for_comparison(unsigned int op
)
88 return BRW_CONDITIONAL_L
;
90 return BRW_CONDITIONAL_GE
;
92 case ir_binop_all_equal
: /* same as equal for scalars */
93 return BRW_CONDITIONAL_Z
;
95 case ir_binop_any_nequal
: /* same as nequal for scalars */
96 return BRW_CONDITIONAL_NZ
;
98 unreachable("not reached: bad operation for comparison");
103 brw_math_function(enum opcode op
)
106 case SHADER_OPCODE_RCP
:
107 return BRW_MATH_FUNCTION_INV
;
108 case SHADER_OPCODE_RSQ
:
109 return BRW_MATH_FUNCTION_RSQ
;
110 case SHADER_OPCODE_SQRT
:
111 return BRW_MATH_FUNCTION_SQRT
;
112 case SHADER_OPCODE_EXP2
:
113 return BRW_MATH_FUNCTION_EXP
;
114 case SHADER_OPCODE_LOG2
:
115 return BRW_MATH_FUNCTION_LOG
;
116 case SHADER_OPCODE_POW
:
117 return BRW_MATH_FUNCTION_POW
;
118 case SHADER_OPCODE_SIN
:
119 return BRW_MATH_FUNCTION_SIN
;
120 case SHADER_OPCODE_COS
:
121 return BRW_MATH_FUNCTION_COS
;
122 case SHADER_OPCODE_INT_QUOTIENT
:
123 return BRW_MATH_FUNCTION_INT_DIV_QUOTIENT
;
124 case SHADER_OPCODE_INT_REMAINDER
:
125 return BRW_MATH_FUNCTION_INT_DIV_REMAINDER
;
127 unreachable("not reached: unknown math function");
132 brw_texture_offset(int *offsets
, unsigned num_components
, uint32_t *offset_bits
)
134 if (!offsets
) return false; /* nonconstant offset; caller will handle it. */
136 /* offset out of bounds; caller will handle it. */
137 for (unsigned i
= 0; i
< num_components
; i
++)
138 if (offsets
[i
] > 7 || offsets
[i
] < -8)
141 /* Combine all three offsets into a single unsigned dword:
143 * bits 11:8 - U Offset (X component)
144 * bits 7:4 - V Offset (Y component)
145 * bits 3:0 - R Offset (Z component)
148 for (unsigned i
= 0; i
< num_components
; i
++) {
149 const unsigned shift
= 4 * (2 - i
);
150 *offset_bits
|= (offsets
[i
] << shift
) & (0xF << shift
);
156 brw_instruction_name(const struct gen_device_info
*devinfo
, enum opcode op
)
159 case BRW_OPCODE_ILLEGAL
... BRW_OPCODE_NOP
:
160 /* The DO instruction doesn't exist on Gen6+, but we use it to mark the
161 * start of a loop in the IR.
163 if (devinfo
->gen
>= 6 && op
== BRW_OPCODE_DO
)
166 /* The following conversion opcodes doesn't exist on Gen8+, but we use
167 * then to mark that we want to do the conversion.
169 if (devinfo
->gen
> 7 && op
== BRW_OPCODE_F32TO16
)
172 if (devinfo
->gen
> 7 && op
== BRW_OPCODE_F16TO32
)
175 assert(brw_opcode_desc(devinfo
, op
)->name
);
176 return brw_opcode_desc(devinfo
, op
)->name
;
177 case FS_OPCODE_FB_WRITE
:
179 case FS_OPCODE_FB_WRITE_LOGICAL
:
180 return "fb_write_logical";
181 case FS_OPCODE_REP_FB_WRITE
:
182 return "rep_fb_write";
183 case FS_OPCODE_FB_READ
:
185 case FS_OPCODE_FB_READ_LOGICAL
:
186 return "fb_read_logical";
188 case SHADER_OPCODE_RCP
:
190 case SHADER_OPCODE_RSQ
:
192 case SHADER_OPCODE_SQRT
:
194 case SHADER_OPCODE_EXP2
:
196 case SHADER_OPCODE_LOG2
:
198 case SHADER_OPCODE_POW
:
200 case SHADER_OPCODE_INT_QUOTIENT
:
202 case SHADER_OPCODE_INT_REMAINDER
:
204 case SHADER_OPCODE_SIN
:
206 case SHADER_OPCODE_COS
:
209 case SHADER_OPCODE_SEND
:
212 case SHADER_OPCODE_TEX
:
214 case SHADER_OPCODE_TEX_LOGICAL
:
215 return "tex_logical";
216 case SHADER_OPCODE_TXD
:
218 case SHADER_OPCODE_TXD_LOGICAL
:
219 return "txd_logical";
220 case SHADER_OPCODE_TXF
:
222 case SHADER_OPCODE_TXF_LOGICAL
:
223 return "txf_logical";
224 case SHADER_OPCODE_TXF_LZ
:
226 case SHADER_OPCODE_TXL
:
228 case SHADER_OPCODE_TXL_LOGICAL
:
229 return "txl_logical";
230 case SHADER_OPCODE_TXL_LZ
:
232 case SHADER_OPCODE_TXS
:
234 case SHADER_OPCODE_TXS_LOGICAL
:
235 return "txs_logical";
238 case FS_OPCODE_TXB_LOGICAL
:
239 return "txb_logical";
240 case SHADER_OPCODE_TXF_CMS
:
242 case SHADER_OPCODE_TXF_CMS_LOGICAL
:
243 return "txf_cms_logical";
244 case SHADER_OPCODE_TXF_CMS_W
:
246 case SHADER_OPCODE_TXF_CMS_W_LOGICAL
:
247 return "txf_cms_w_logical";
248 case SHADER_OPCODE_TXF_UMS
:
250 case SHADER_OPCODE_TXF_UMS_LOGICAL
:
251 return "txf_ums_logical";
252 case SHADER_OPCODE_TXF_MCS
:
254 case SHADER_OPCODE_TXF_MCS_LOGICAL
:
255 return "txf_mcs_logical";
256 case SHADER_OPCODE_LOD
:
258 case SHADER_OPCODE_LOD_LOGICAL
:
259 return "lod_logical";
260 case SHADER_OPCODE_TG4
:
262 case SHADER_OPCODE_TG4_LOGICAL
:
263 return "tg4_logical";
264 case SHADER_OPCODE_TG4_OFFSET
:
266 case SHADER_OPCODE_TG4_OFFSET_LOGICAL
:
267 return "tg4_offset_logical";
268 case SHADER_OPCODE_SAMPLEINFO
:
270 case SHADER_OPCODE_SAMPLEINFO_LOGICAL
:
271 return "sampleinfo_logical";
273 case SHADER_OPCODE_IMAGE_SIZE
:
275 case SHADER_OPCODE_IMAGE_SIZE_LOGICAL
:
276 return "image_size_logical";
278 case SHADER_OPCODE_SHADER_TIME_ADD
:
279 return "shader_time_add";
281 case SHADER_OPCODE_UNTYPED_ATOMIC
:
282 return "untyped_atomic";
283 case SHADER_OPCODE_UNTYPED_ATOMIC_LOGICAL
:
284 return "untyped_atomic_logical";
285 case SHADER_OPCODE_UNTYPED_ATOMIC_FLOAT
:
286 return "untyped_atomic_float";
287 case SHADER_OPCODE_UNTYPED_ATOMIC_FLOAT_LOGICAL
:
288 return "untyped_atomic_float_logical";
289 case SHADER_OPCODE_UNTYPED_SURFACE_READ
:
290 return "untyped_surface_read";
291 case SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL
:
292 return "untyped_surface_read_logical";
293 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE
:
294 return "untyped_surface_write";
295 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL
:
296 return "untyped_surface_write_logical";
297 case SHADER_OPCODE_A64_UNTYPED_READ_LOGICAL
:
298 return "a64_untyped_read_logical";
299 case SHADER_OPCODE_A64_UNTYPED_WRITE_LOGICAL
:
300 return "a64_untyped_write_logical";
301 case SHADER_OPCODE_A64_BYTE_SCATTERED_READ_LOGICAL
:
302 return "a64_byte_scattered_read_logical";
303 case SHADER_OPCODE_A64_BYTE_SCATTERED_WRITE_LOGICAL
:
304 return "a64_byte_scattered_write_logical";
305 case SHADER_OPCODE_A64_UNTYPED_ATOMIC_LOGICAL
:
306 return "a64_untyped_atomic_logical";
307 case SHADER_OPCODE_A64_UNTYPED_ATOMIC_FLOAT_LOGICAL
:
308 return "a64_untyped_atomic_float_logical";
309 case SHADER_OPCODE_TYPED_ATOMIC
:
310 return "typed_atomic";
311 case SHADER_OPCODE_TYPED_ATOMIC_LOGICAL
:
312 return "typed_atomic_logical";
313 case SHADER_OPCODE_TYPED_SURFACE_READ
:
314 return "typed_surface_read";
315 case SHADER_OPCODE_TYPED_SURFACE_READ_LOGICAL
:
316 return "typed_surface_read_logical";
317 case SHADER_OPCODE_TYPED_SURFACE_WRITE
:
318 return "typed_surface_write";
319 case SHADER_OPCODE_TYPED_SURFACE_WRITE_LOGICAL
:
320 return "typed_surface_write_logical";
321 case SHADER_OPCODE_MEMORY_FENCE
:
322 return "memory_fence";
323 case SHADER_OPCODE_INTERLOCK
:
324 /* For an interlock we actually issue a memory fence via sendc. */
327 case SHADER_OPCODE_BYTE_SCATTERED_READ
:
328 return "byte_scattered_read";
329 case SHADER_OPCODE_BYTE_SCATTERED_READ_LOGICAL
:
330 return "byte_scattered_read_logical";
331 case SHADER_OPCODE_BYTE_SCATTERED_WRITE
:
332 return "byte_scattered_write";
333 case SHADER_OPCODE_BYTE_SCATTERED_WRITE_LOGICAL
:
334 return "byte_scattered_write_logical";
336 case SHADER_OPCODE_LOAD_PAYLOAD
:
337 return "load_payload";
341 case SHADER_OPCODE_GEN4_SCRATCH_READ
:
342 return "gen4_scratch_read";
343 case SHADER_OPCODE_GEN4_SCRATCH_WRITE
:
344 return "gen4_scratch_write";
345 case SHADER_OPCODE_GEN7_SCRATCH_READ
:
346 return "gen7_scratch_read";
347 case SHADER_OPCODE_URB_WRITE_SIMD8
:
348 return "gen8_urb_write_simd8";
349 case SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT
:
350 return "gen8_urb_write_simd8_per_slot";
351 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED
:
352 return "gen8_urb_write_simd8_masked";
353 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT
:
354 return "gen8_urb_write_simd8_masked_per_slot";
355 case SHADER_OPCODE_URB_READ_SIMD8
:
356 return "urb_read_simd8";
357 case SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT
:
358 return "urb_read_simd8_per_slot";
360 case SHADER_OPCODE_FIND_LIVE_CHANNEL
:
361 return "find_live_channel";
362 case SHADER_OPCODE_BROADCAST
:
364 case SHADER_OPCODE_SHUFFLE
:
366 case SHADER_OPCODE_SEL_EXEC
:
368 case SHADER_OPCODE_QUAD_SWIZZLE
:
369 return "quad_swizzle";
370 case SHADER_OPCODE_CLUSTER_BROADCAST
:
371 return "cluster_broadcast";
373 case SHADER_OPCODE_GET_BUFFER_SIZE
:
374 return "get_buffer_size";
376 case VEC4_OPCODE_MOV_BYTES
:
378 case VEC4_OPCODE_PACK_BYTES
:
380 case VEC4_OPCODE_UNPACK_UNIFORM
:
381 return "unpack_uniform";
382 case VEC4_OPCODE_DOUBLE_TO_F32
:
383 return "double_to_f32";
384 case VEC4_OPCODE_DOUBLE_TO_D32
:
385 return "double_to_d32";
386 case VEC4_OPCODE_DOUBLE_TO_U32
:
387 return "double_to_u32";
388 case VEC4_OPCODE_TO_DOUBLE
:
389 return "single_to_double";
390 case VEC4_OPCODE_PICK_LOW_32BIT
:
391 return "pick_low_32bit";
392 case VEC4_OPCODE_PICK_HIGH_32BIT
:
393 return "pick_high_32bit";
394 case VEC4_OPCODE_SET_LOW_32BIT
:
395 return "set_low_32bit";
396 case VEC4_OPCODE_SET_HIGH_32BIT
:
397 return "set_high_32bit";
399 case FS_OPCODE_DDX_COARSE
:
401 case FS_OPCODE_DDX_FINE
:
403 case FS_OPCODE_DDY_COARSE
:
405 case FS_OPCODE_DDY_FINE
:
408 case FS_OPCODE_LINTERP
:
411 case FS_OPCODE_PIXEL_X
:
413 case FS_OPCODE_PIXEL_Y
:
416 case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD
:
417 return "uniform_pull_const";
418 case FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD_GEN7
:
419 return "uniform_pull_const_gen7";
420 case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_GEN4
:
421 return "varying_pull_const_gen4";
422 case FS_OPCODE_VARYING_PULL_CONSTANT_LOAD_LOGICAL
:
423 return "varying_pull_const_logical";
425 case FS_OPCODE_DISCARD_JUMP
:
426 return "discard_jump";
428 case FS_OPCODE_SET_SAMPLE_ID
:
429 return "set_sample_id";
431 case FS_OPCODE_PACK_HALF_2x16_SPLIT
:
432 return "pack_half_2x16_split";
434 case FS_OPCODE_PLACEHOLDER_HALT
:
435 return "placeholder_halt";
437 case FS_OPCODE_INTERPOLATE_AT_SAMPLE
:
438 return "interp_sample";
439 case FS_OPCODE_INTERPOLATE_AT_SHARED_OFFSET
:
440 return "interp_shared_offset";
441 case FS_OPCODE_INTERPOLATE_AT_PER_SLOT_OFFSET
:
442 return "interp_per_slot_offset";
444 case VS_OPCODE_URB_WRITE
:
445 return "vs_urb_write";
446 case VS_OPCODE_PULL_CONSTANT_LOAD
:
447 return "pull_constant_load";
448 case VS_OPCODE_PULL_CONSTANT_LOAD_GEN7
:
449 return "pull_constant_load_gen7";
451 case VS_OPCODE_SET_SIMD4X2_HEADER_GEN9
:
452 return "set_simd4x2_header_gen9";
454 case VS_OPCODE_UNPACK_FLAGS_SIMD4X2
:
455 return "unpack_flags_simd4x2";
457 case GS_OPCODE_URB_WRITE
:
458 return "gs_urb_write";
459 case GS_OPCODE_URB_WRITE_ALLOCATE
:
460 return "gs_urb_write_allocate";
461 case GS_OPCODE_THREAD_END
:
462 return "gs_thread_end";
463 case GS_OPCODE_SET_WRITE_OFFSET
:
464 return "set_write_offset";
465 case GS_OPCODE_SET_VERTEX_COUNT
:
466 return "set_vertex_count";
467 case GS_OPCODE_SET_DWORD_2
:
468 return "set_dword_2";
469 case GS_OPCODE_PREPARE_CHANNEL_MASKS
:
470 return "prepare_channel_masks";
471 case GS_OPCODE_SET_CHANNEL_MASKS
:
472 return "set_channel_masks";
473 case GS_OPCODE_GET_INSTANCE_ID
:
474 return "get_instance_id";
475 case GS_OPCODE_FF_SYNC
:
477 case GS_OPCODE_SET_PRIMITIVE_ID
:
478 return "set_primitive_id";
479 case GS_OPCODE_SVB_WRITE
:
480 return "gs_svb_write";
481 case GS_OPCODE_SVB_SET_DST_INDEX
:
482 return "gs_svb_set_dst_index";
483 case GS_OPCODE_FF_SYNC_SET_PRIMITIVES
:
484 return "gs_ff_sync_set_primitives";
485 case CS_OPCODE_CS_TERMINATE
:
486 return "cs_terminate";
487 case SHADER_OPCODE_BARRIER
:
489 case SHADER_OPCODE_MULH
:
491 case SHADER_OPCODE_MOV_INDIRECT
:
492 return "mov_indirect";
494 case VEC4_OPCODE_URB_READ
:
496 case TCS_OPCODE_GET_INSTANCE_ID
:
497 return "tcs_get_instance_id";
498 case TCS_OPCODE_URB_WRITE
:
499 return "tcs_urb_write";
500 case TCS_OPCODE_SET_INPUT_URB_OFFSETS
:
501 return "tcs_set_input_urb_offsets";
502 case TCS_OPCODE_SET_OUTPUT_URB_OFFSETS
:
503 return "tcs_set_output_urb_offsets";
504 case TCS_OPCODE_GET_PRIMITIVE_ID
:
505 return "tcs_get_primitive_id";
506 case TCS_OPCODE_CREATE_BARRIER_HEADER
:
507 return "tcs_create_barrier_header";
508 case TCS_OPCODE_SRC0_010_IS_ZERO
:
509 return "tcs_src0<0,1,0>_is_zero";
510 case TCS_OPCODE_RELEASE_INPUT
:
511 return "tcs_release_input";
512 case TCS_OPCODE_THREAD_END
:
513 return "tcs_thread_end";
514 case TES_OPCODE_CREATE_INPUT_READ_HEADER
:
515 return "tes_create_input_read_header";
516 case TES_OPCODE_ADD_INDIRECT_URB_OFFSET
:
517 return "tes_add_indirect_urb_offset";
518 case TES_OPCODE_GET_PRIMITIVE_ID
:
519 return "tes_get_primitive_id";
521 case SHADER_OPCODE_RND_MODE
:
525 unreachable("not reached");
529 brw_saturate_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
536 } imm
, sat_imm
= { 0 };
538 const unsigned size
= type_sz(type
);
540 /* We want to either do a 32-bit or 64-bit data copy, the type is otherwise
541 * irrelevant, so just check the size of the type and copy from/to an
542 * appropriately sized field.
550 case BRW_REGISTER_TYPE_UD
:
551 case BRW_REGISTER_TYPE_D
:
552 case BRW_REGISTER_TYPE_UW
:
553 case BRW_REGISTER_TYPE_W
:
554 case BRW_REGISTER_TYPE_UQ
:
555 case BRW_REGISTER_TYPE_Q
:
558 case BRW_REGISTER_TYPE_F
:
559 sat_imm
.f
= CLAMP(imm
.f
, 0.0f
, 1.0f
);
561 case BRW_REGISTER_TYPE_DF
:
562 sat_imm
.df
= CLAMP(imm
.df
, 0.0, 1.0);
564 case BRW_REGISTER_TYPE_UB
:
565 case BRW_REGISTER_TYPE_B
:
566 unreachable("no UB/B immediates");
567 case BRW_REGISTER_TYPE_V
:
568 case BRW_REGISTER_TYPE_UV
:
569 case BRW_REGISTER_TYPE_VF
:
570 unreachable("unimplemented: saturate vector immediate");
571 case BRW_REGISTER_TYPE_HF
:
572 unreachable("unimplemented: saturate HF immediate");
573 case BRW_REGISTER_TYPE_NF
:
574 unreachable("no NF immediates");
578 if (imm
.ud
!= sat_imm
.ud
) {
579 reg
->ud
= sat_imm
.ud
;
583 if (imm
.df
!= sat_imm
.df
) {
584 reg
->df
= sat_imm
.df
;
592 brw_negate_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
595 case BRW_REGISTER_TYPE_D
:
596 case BRW_REGISTER_TYPE_UD
:
599 case BRW_REGISTER_TYPE_W
:
600 case BRW_REGISTER_TYPE_UW
: {
601 uint16_t value
= -(int16_t)reg
->ud
;
602 reg
->ud
= value
| (uint32_t)value
<< 16;
605 case BRW_REGISTER_TYPE_F
:
608 case BRW_REGISTER_TYPE_VF
:
609 reg
->ud
^= 0x80808080;
611 case BRW_REGISTER_TYPE_DF
:
614 case BRW_REGISTER_TYPE_UQ
:
615 case BRW_REGISTER_TYPE_Q
:
616 reg
->d64
= -reg
->d64
;
618 case BRW_REGISTER_TYPE_UB
:
619 case BRW_REGISTER_TYPE_B
:
620 unreachable("no UB/B immediates");
621 case BRW_REGISTER_TYPE_UV
:
622 case BRW_REGISTER_TYPE_V
:
623 assert(!"unimplemented: negate UV/V immediate");
624 case BRW_REGISTER_TYPE_HF
:
625 reg
->ud
^= 0x80008000;
627 case BRW_REGISTER_TYPE_NF
:
628 unreachable("no NF immediates");
635 brw_abs_immediate(enum brw_reg_type type
, struct brw_reg
*reg
)
638 case BRW_REGISTER_TYPE_D
:
639 reg
->d
= abs(reg
->d
);
641 case BRW_REGISTER_TYPE_W
: {
642 uint16_t value
= abs((int16_t)reg
->ud
);
643 reg
->ud
= value
| (uint32_t)value
<< 16;
646 case BRW_REGISTER_TYPE_F
:
647 reg
->f
= fabsf(reg
->f
);
649 case BRW_REGISTER_TYPE_DF
:
650 reg
->df
= fabs(reg
->df
);
652 case BRW_REGISTER_TYPE_VF
:
653 reg
->ud
&= ~0x80808080;
655 case BRW_REGISTER_TYPE_Q
:
656 reg
->d64
= imaxabs(reg
->d64
);
658 case BRW_REGISTER_TYPE_UB
:
659 case BRW_REGISTER_TYPE_B
:
660 unreachable("no UB/B immediates");
661 case BRW_REGISTER_TYPE_UQ
:
662 case BRW_REGISTER_TYPE_UD
:
663 case BRW_REGISTER_TYPE_UW
:
664 case BRW_REGISTER_TYPE_UV
:
665 /* Presumably the absolute value modifier on an unsigned source is a
666 * nop, but it would be nice to confirm.
668 assert(!"unimplemented: abs unsigned immediate");
669 case BRW_REGISTER_TYPE_V
:
670 assert(!"unimplemented: abs V immediate");
671 case BRW_REGISTER_TYPE_HF
:
672 reg
->ud
&= ~0x80008000;
674 case BRW_REGISTER_TYPE_NF
:
675 unreachable("no NF immediates");
681 backend_shader::backend_shader(const struct brw_compiler
*compiler
,
684 const nir_shader
*shader
,
685 struct brw_stage_prog_data
*stage_prog_data
)
686 : compiler(compiler
),
688 devinfo(compiler
->devinfo
),
690 stage_prog_data(stage_prog_data
),
693 stage(shader
->info
.stage
)
695 debug_enabled
= INTEL_DEBUG
& intel_debug_flag_for_shader_stage(stage
);
696 stage_name
= _mesa_shader_stage_to_string(stage
);
697 stage_abbrev
= _mesa_shader_stage_to_abbrev(stage
);
700 backend_shader::~backend_shader()
705 backend_reg::equals(const backend_reg
&r
) const
707 return brw_regs_equal(this, &r
) && offset
== r
.offset
;
711 backend_reg::negative_equals(const backend_reg
&r
) const
713 return brw_regs_negative_equal(this, &r
) && offset
== r
.offset
;
717 backend_reg::is_zero() const
723 case BRW_REGISTER_TYPE_F
:
725 case BRW_REGISTER_TYPE_DF
:
727 case BRW_REGISTER_TYPE_D
:
728 case BRW_REGISTER_TYPE_UD
:
730 case BRW_REGISTER_TYPE_UQ
:
731 case BRW_REGISTER_TYPE_Q
:
739 backend_reg::is_one() const
745 case BRW_REGISTER_TYPE_F
:
747 case BRW_REGISTER_TYPE_DF
:
749 case BRW_REGISTER_TYPE_D
:
750 case BRW_REGISTER_TYPE_UD
:
752 case BRW_REGISTER_TYPE_UQ
:
753 case BRW_REGISTER_TYPE_Q
:
761 backend_reg::is_negative_one() const
767 case BRW_REGISTER_TYPE_F
:
769 case BRW_REGISTER_TYPE_DF
:
771 case BRW_REGISTER_TYPE_D
:
773 case BRW_REGISTER_TYPE_Q
:
781 backend_reg::is_null() const
783 return file
== ARF
&& nr
== BRW_ARF_NULL
;
788 backend_reg::is_accumulator() const
790 return file
== ARF
&& nr
== BRW_ARF_ACCUMULATOR
;
794 backend_instruction::is_commutative() const
802 case SHADER_OPCODE_MULH
:
805 /* MIN and MAX are commutative. */
806 if (conditional_mod
== BRW_CONDITIONAL_GE
||
807 conditional_mod
== BRW_CONDITIONAL_L
) {
817 backend_instruction::is_3src(const struct gen_device_info
*devinfo
) const
819 return ::is_3src(devinfo
, opcode
);
823 backend_instruction::is_tex() const
825 return (opcode
== SHADER_OPCODE_TEX
||
826 opcode
== FS_OPCODE_TXB
||
827 opcode
== SHADER_OPCODE_TXD
||
828 opcode
== SHADER_OPCODE_TXF
||
829 opcode
== SHADER_OPCODE_TXF_LZ
||
830 opcode
== SHADER_OPCODE_TXF_CMS
||
831 opcode
== SHADER_OPCODE_TXF_CMS_W
||
832 opcode
== SHADER_OPCODE_TXF_UMS
||
833 opcode
== SHADER_OPCODE_TXF_MCS
||
834 opcode
== SHADER_OPCODE_TXL
||
835 opcode
== SHADER_OPCODE_TXL_LZ
||
836 opcode
== SHADER_OPCODE_TXS
||
837 opcode
== SHADER_OPCODE_LOD
||
838 opcode
== SHADER_OPCODE_TG4
||
839 opcode
== SHADER_OPCODE_TG4_OFFSET
||
840 opcode
== SHADER_OPCODE_SAMPLEINFO
);
844 backend_instruction::is_math() const
846 return (opcode
== SHADER_OPCODE_RCP
||
847 opcode
== SHADER_OPCODE_RSQ
||
848 opcode
== SHADER_OPCODE_SQRT
||
849 opcode
== SHADER_OPCODE_EXP2
||
850 opcode
== SHADER_OPCODE_LOG2
||
851 opcode
== SHADER_OPCODE_SIN
||
852 opcode
== SHADER_OPCODE_COS
||
853 opcode
== SHADER_OPCODE_INT_QUOTIENT
||
854 opcode
== SHADER_OPCODE_INT_REMAINDER
||
855 opcode
== SHADER_OPCODE_POW
);
859 backend_instruction::is_control_flow() const
863 case BRW_OPCODE_WHILE
:
865 case BRW_OPCODE_ELSE
:
866 case BRW_OPCODE_ENDIF
:
867 case BRW_OPCODE_BREAK
:
868 case BRW_OPCODE_CONTINUE
:
876 backend_instruction::can_do_source_mods() const
879 case BRW_OPCODE_ADDC
:
881 case BRW_OPCODE_BFI1
:
882 case BRW_OPCODE_BFI2
:
883 case BRW_OPCODE_BFREV
:
884 case BRW_OPCODE_CBIT
:
887 case BRW_OPCODE_SUBB
:
888 case SHADER_OPCODE_BROADCAST
:
889 case SHADER_OPCODE_CLUSTER_BROADCAST
:
890 case SHADER_OPCODE_MOV_INDIRECT
:
898 backend_instruction::can_do_saturate() const
908 case BRW_OPCODE_F16TO32
:
909 case BRW_OPCODE_F32TO16
:
910 case BRW_OPCODE_LINE
:
914 case BRW_OPCODE_MATH
:
917 case SHADER_OPCODE_MULH
:
919 case BRW_OPCODE_RNDD
:
920 case BRW_OPCODE_RNDE
:
921 case BRW_OPCODE_RNDU
:
922 case BRW_OPCODE_RNDZ
:
926 case FS_OPCODE_LINTERP
:
927 case SHADER_OPCODE_COS
:
928 case SHADER_OPCODE_EXP2
:
929 case SHADER_OPCODE_LOG2
:
930 case SHADER_OPCODE_POW
:
931 case SHADER_OPCODE_RCP
:
932 case SHADER_OPCODE_RSQ
:
933 case SHADER_OPCODE_SIN
:
934 case SHADER_OPCODE_SQRT
:
942 backend_instruction::can_do_cmod() const
946 case BRW_OPCODE_ADDC
:
951 case BRW_OPCODE_CMPN
:
956 case BRW_OPCODE_F16TO32
:
957 case BRW_OPCODE_F32TO16
:
959 case BRW_OPCODE_LINE
:
963 case BRW_OPCODE_MACH
:
970 case BRW_OPCODE_RNDD
:
971 case BRW_OPCODE_RNDE
:
972 case BRW_OPCODE_RNDU
:
973 case BRW_OPCODE_RNDZ
:
974 case BRW_OPCODE_SAD2
:
975 case BRW_OPCODE_SADA2
:
978 case BRW_OPCODE_SUBB
:
980 case FS_OPCODE_LINTERP
:
988 backend_instruction::reads_accumulator_implicitly() const
992 case BRW_OPCODE_MACH
:
993 case BRW_OPCODE_SADA2
:
1001 backend_instruction::writes_accumulator_implicitly(const struct gen_device_info
*devinfo
) const
1003 return writes_accumulator
||
1004 (devinfo
->gen
< 6 &&
1005 ((opcode
>= BRW_OPCODE_ADD
&& opcode
< BRW_OPCODE_NOP
) ||
1006 (opcode
>= FS_OPCODE_DDX_COARSE
&& opcode
<= FS_OPCODE_LINTERP
))) ||
1007 (opcode
== FS_OPCODE_LINTERP
&&
1008 (!devinfo
->has_pln
|| devinfo
->gen
<= 6));
1012 backend_instruction::has_side_effects() const
1015 case SHADER_OPCODE_SEND
:
1016 return send_has_side_effects
;
1018 case SHADER_OPCODE_UNTYPED_ATOMIC
:
1019 case SHADER_OPCODE_UNTYPED_ATOMIC_LOGICAL
:
1020 case SHADER_OPCODE_UNTYPED_ATOMIC_FLOAT
:
1021 case SHADER_OPCODE_UNTYPED_ATOMIC_FLOAT_LOGICAL
:
1022 case SHADER_OPCODE_GEN4_SCRATCH_WRITE
:
1023 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE
:
1024 case SHADER_OPCODE_UNTYPED_SURFACE_WRITE_LOGICAL
:
1025 case SHADER_OPCODE_A64_UNTYPED_WRITE_LOGICAL
:
1026 case SHADER_OPCODE_A64_BYTE_SCATTERED_WRITE_LOGICAL
:
1027 case SHADER_OPCODE_A64_UNTYPED_ATOMIC_LOGICAL
:
1028 case SHADER_OPCODE_A64_UNTYPED_ATOMIC_FLOAT_LOGICAL
:
1029 case SHADER_OPCODE_BYTE_SCATTERED_WRITE
:
1030 case SHADER_OPCODE_BYTE_SCATTERED_WRITE_LOGICAL
:
1031 case SHADER_OPCODE_TYPED_ATOMIC
:
1032 case SHADER_OPCODE_TYPED_ATOMIC_LOGICAL
:
1033 case SHADER_OPCODE_TYPED_SURFACE_WRITE
:
1034 case SHADER_OPCODE_TYPED_SURFACE_WRITE_LOGICAL
:
1035 case SHADER_OPCODE_MEMORY_FENCE
:
1036 case SHADER_OPCODE_INTERLOCK
:
1037 case SHADER_OPCODE_URB_WRITE_SIMD8
:
1038 case SHADER_OPCODE_URB_WRITE_SIMD8_PER_SLOT
:
1039 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED
:
1040 case SHADER_OPCODE_URB_WRITE_SIMD8_MASKED_PER_SLOT
:
1041 case FS_OPCODE_FB_WRITE
:
1042 case FS_OPCODE_FB_WRITE_LOGICAL
:
1043 case FS_OPCODE_REP_FB_WRITE
:
1044 case SHADER_OPCODE_BARRIER
:
1045 case TCS_OPCODE_URB_WRITE
:
1046 case TCS_OPCODE_RELEASE_INPUT
:
1047 case SHADER_OPCODE_RND_MODE
:
1055 backend_instruction::is_volatile() const
1058 case SHADER_OPCODE_SEND
:
1059 return send_is_volatile
;
1061 case SHADER_OPCODE_UNTYPED_SURFACE_READ
:
1062 case SHADER_OPCODE_UNTYPED_SURFACE_READ_LOGICAL
:
1063 case SHADER_OPCODE_TYPED_SURFACE_READ
:
1064 case SHADER_OPCODE_TYPED_SURFACE_READ_LOGICAL
:
1065 case SHADER_OPCODE_BYTE_SCATTERED_READ
:
1066 case SHADER_OPCODE_BYTE_SCATTERED_READ_LOGICAL
:
1067 case SHADER_OPCODE_A64_UNTYPED_READ_LOGICAL
:
1068 case SHADER_OPCODE_A64_BYTE_SCATTERED_READ_LOGICAL
:
1069 case SHADER_OPCODE_URB_READ_SIMD8
:
1070 case SHADER_OPCODE_URB_READ_SIMD8_PER_SLOT
:
1071 case VEC4_OPCODE_URB_READ
:
1080 inst_is_in_block(const bblock_t
*block
, const backend_instruction
*inst
)
1083 foreach_inst_in_block (backend_instruction
, i
, block
) {
1093 adjust_later_block_ips(bblock_t
*start_block
, int ip_adjustment
)
1095 for (bblock_t
*block_iter
= start_block
->next();
1097 block_iter
= block_iter
->next()) {
1098 block_iter
->start_ip
+= ip_adjustment
;
1099 block_iter
->end_ip
+= ip_adjustment
;
1104 backend_instruction::insert_after(bblock_t
*block
, backend_instruction
*inst
)
1106 assert(this != inst
);
1108 if (!this->is_head_sentinel())
1109 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1113 adjust_later_block_ips(block
, 1);
1115 exec_node::insert_after(inst
);
1119 backend_instruction::insert_before(bblock_t
*block
, backend_instruction
*inst
)
1121 assert(this != inst
);
1123 if (!this->is_tail_sentinel())
1124 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1128 adjust_later_block_ips(block
, 1);
1130 exec_node::insert_before(inst
);
1134 backend_instruction::insert_before(bblock_t
*block
, exec_list
*list
)
1136 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1138 unsigned num_inst
= list
->length();
1140 block
->end_ip
+= num_inst
;
1142 adjust_later_block_ips(block
, num_inst
);
1144 exec_node::insert_before(list
);
1148 backend_instruction::remove(bblock_t
*block
)
1150 assert(inst_is_in_block(block
, this) || !"Instruction not in block");
1152 adjust_later_block_ips(block
, -1);
1154 if (block
->start_ip
== block
->end_ip
) {
1155 block
->cfg
->remove_block(block
);
1160 exec_node::remove();
1164 backend_shader::dump_instructions()
1166 dump_instructions(NULL
);
1170 backend_shader::dump_instructions(const char *name
)
1172 FILE *file
= stderr
;
1173 if (name
&& geteuid() != 0) {
1174 file
= fopen(name
, "w");
1181 foreach_block_and_inst(block
, backend_instruction
, inst
, cfg
) {
1182 if (!unlikely(INTEL_DEBUG
& DEBUG_OPTIMIZER
))
1183 fprintf(file
, "%4d: ", ip
++);
1184 dump_instruction(inst
, file
);
1188 foreach_in_list(backend_instruction
, inst
, &instructions
) {
1189 if (!unlikely(INTEL_DEBUG
& DEBUG_OPTIMIZER
))
1190 fprintf(file
, "%4d: ", ip
++);
1191 dump_instruction(inst
, file
);
1195 if (file
!= stderr
) {
1201 backend_shader::calculate_cfg()
1205 cfg
= new(mem_ctx
) cfg_t(&this->instructions
);
1208 extern "C" const unsigned *
1209 brw_compile_tes(const struct brw_compiler
*compiler
,
1212 const struct brw_tes_prog_key
*key
,
1213 const struct brw_vue_map
*input_vue_map
,
1214 struct brw_tes_prog_data
*prog_data
,
1216 struct gl_program
*prog
,
1217 int shader_time_index
,
1220 const struct gen_device_info
*devinfo
= compiler
->devinfo
;
1221 const bool is_scalar
= compiler
->scalar_stage
[MESA_SHADER_TESS_EVAL
];
1222 const unsigned *assembly
;
1224 nir
->info
.inputs_read
= key
->inputs_read
;
1225 nir
->info
.patch_inputs_read
= key
->patch_inputs_read
;
1227 nir
= brw_nir_apply_sampler_key(nir
, compiler
, &key
->tex
, is_scalar
);
1228 brw_nir_lower_tes_inputs(nir
, input_vue_map
);
1229 brw_nir_lower_vue_outputs(nir
);
1230 nir
= brw_postprocess_nir(nir
, compiler
, is_scalar
);
1232 brw_compute_vue_map(devinfo
, &prog_data
->base
.vue_map
,
1233 nir
->info
.outputs_written
,
1234 nir
->info
.separate_shader
);
1236 unsigned output_size_bytes
= prog_data
->base
.vue_map
.num_slots
* 4 * 4;
1238 assert(output_size_bytes
>= 1);
1239 if (output_size_bytes
> GEN7_MAX_DS_URB_ENTRY_SIZE_BYTES
) {
1241 *error_str
= ralloc_strdup(mem_ctx
, "DS outputs exceed maximum size");
1245 prog_data
->base
.clip_distance_mask
=
1246 ((1 << nir
->info
.clip_distance_array_size
) - 1);
1247 prog_data
->base
.cull_distance_mask
=
1248 ((1 << nir
->info
.cull_distance_array_size
) - 1) <<
1249 nir
->info
.clip_distance_array_size
;
1251 /* URB entry sizes are stored as a multiple of 64 bytes. */
1252 prog_data
->base
.urb_entry_size
= ALIGN(output_size_bytes
, 64) / 64;
1254 /* On Cannonlake software shall not program an allocation size that
1255 * specifies a size that is a multiple of 3 64B (512-bit) cachelines.
1257 if (devinfo
->gen
== 10 &&
1258 prog_data
->base
.urb_entry_size
% 3 == 0)
1259 prog_data
->base
.urb_entry_size
++;
1261 prog_data
->base
.urb_read_length
= 0;
1263 STATIC_ASSERT(BRW_TESS_PARTITIONING_INTEGER
== TESS_SPACING_EQUAL
- 1);
1264 STATIC_ASSERT(BRW_TESS_PARTITIONING_ODD_FRACTIONAL
==
1265 TESS_SPACING_FRACTIONAL_ODD
- 1);
1266 STATIC_ASSERT(BRW_TESS_PARTITIONING_EVEN_FRACTIONAL
==
1267 TESS_SPACING_FRACTIONAL_EVEN
- 1);
1269 prog_data
->partitioning
=
1270 (enum brw_tess_partitioning
) (nir
->info
.tess
.spacing
- 1);
1272 switch (nir
->info
.tess
.primitive_mode
) {
1274 prog_data
->domain
= BRW_TESS_DOMAIN_QUAD
;
1277 prog_data
->domain
= BRW_TESS_DOMAIN_TRI
;
1280 prog_data
->domain
= BRW_TESS_DOMAIN_ISOLINE
;
1283 unreachable("invalid domain shader primitive mode");
1286 if (nir
->info
.tess
.point_mode
) {
1287 prog_data
->output_topology
= BRW_TESS_OUTPUT_TOPOLOGY_POINT
;
1288 } else if (nir
->info
.tess
.primitive_mode
== GL_ISOLINES
) {
1289 prog_data
->output_topology
= BRW_TESS_OUTPUT_TOPOLOGY_LINE
;
1291 /* Hardware winding order is backwards from OpenGL */
1292 prog_data
->output_topology
=
1293 nir
->info
.tess
.ccw
? BRW_TESS_OUTPUT_TOPOLOGY_TRI_CW
1294 : BRW_TESS_OUTPUT_TOPOLOGY_TRI_CCW
;
1297 if (unlikely(INTEL_DEBUG
& DEBUG_TES
)) {
1298 fprintf(stderr
, "TES Input ");
1299 brw_print_vue_map(stderr
, input_vue_map
);
1300 fprintf(stderr
, "TES Output ");
1301 brw_print_vue_map(stderr
, &prog_data
->base
.vue_map
);
1305 fs_visitor
v(compiler
, log_data
, mem_ctx
, (void *) key
,
1306 &prog_data
->base
.base
, NULL
, nir
, 8,
1307 shader_time_index
, input_vue_map
);
1310 *error_str
= ralloc_strdup(mem_ctx
, v
.fail_msg
);
1314 prog_data
->base
.base
.dispatch_grf_start_reg
= v
.payload
.num_regs
;
1315 prog_data
->base
.dispatch_mode
= DISPATCH_MODE_SIMD8
;
1317 fs_generator
g(compiler
, log_data
, mem_ctx
,
1318 &prog_data
->base
.base
, v
.promoted_constants
, false,
1319 MESA_SHADER_TESS_EVAL
);
1320 if (unlikely(INTEL_DEBUG
& DEBUG_TES
)) {
1321 g
.enable_debug(ralloc_asprintf(mem_ctx
,
1322 "%s tessellation evaluation shader %s",
1323 nir
->info
.label
? nir
->info
.label
1328 g
.generate_code(v
.cfg
, 8);
1330 assembly
= g
.get_assembly();
1332 brw::vec4_tes_visitor
v(compiler
, log_data
, key
, prog_data
,
1333 nir
, mem_ctx
, shader_time_index
);
1336 *error_str
= ralloc_strdup(mem_ctx
, v
.fail_msg
);
1340 if (unlikely(INTEL_DEBUG
& DEBUG_TES
))
1341 v
.dump_instructions();
1343 assembly
= brw_vec4_generate_assembly(compiler
, log_data
, mem_ctx
, nir
,
1344 &prog_data
->base
, v
.cfg
);