2 * Copyright (C) 2015 Rob Clark <robclark@freedesktop.org>
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Rob Clark <robclark@freedesktop.org>
29 #include "util/u_string.h"
30 #include "util/u_memory.h"
31 #include "util/u_math.h"
33 #include "ir3_compiler.h"
34 #include "ir3_image.h"
35 #include "ir3_shader.h"
38 #include "instr-a3xx.h"
40 #include "ir3_context.h"
43 ir3_handle_bindless_cat6(struct ir3_instruction
*instr
, nir_src rsrc
)
45 nir_intrinsic_instr
*intrin
= ir3_bindless_resource(rsrc
);
49 instr
->flags
|= IR3_INSTR_B
;
50 instr
->cat6
.base
= nir_intrinsic_desc_set(intrin
);
53 static struct ir3_instruction
*
54 create_input(struct ir3_context
*ctx
, unsigned compmask
)
56 struct ir3_instruction
*in
;
58 in
= ir3_instr_create(ctx
->in_block
, OPC_META_INPUT
);
59 in
->input
.sysval
= ~0;
60 __ssa_dst(in
)->wrmask
= compmask
;
62 array_insert(ctx
->ir
, ctx
->ir
->inputs
, in
);
67 static struct ir3_instruction
*
68 create_frag_input(struct ir3_context
*ctx
, bool use_ldlv
, unsigned n
)
70 struct ir3_block
*block
= ctx
->block
;
71 struct ir3_instruction
*instr
;
72 /* packed inloc is fixed up later: */
73 struct ir3_instruction
*inloc
= create_immed(block
, n
);
76 instr
= ir3_LDLV(block
, inloc
, 0, create_immed(block
, 1), 0);
77 instr
->cat6
.type
= TYPE_U32
;
78 instr
->cat6
.iim_val
= 1;
80 instr
= ir3_BARY_F(block
, inloc
, 0, ctx
->ij
[IJ_PERSP_PIXEL
], 0);
81 instr
->regs
[2]->wrmask
= 0x3;
87 static struct ir3_instruction
*
88 create_driver_param(struct ir3_context
*ctx
, enum ir3_driver_param dp
)
90 /* first four vec4 sysval's reserved for UBOs: */
91 /* NOTE: dp is in scalar, but there can be >4 dp components: */
92 struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
93 unsigned n
= const_state
->offsets
.driver_param
;
94 unsigned r
= regid(n
+ dp
/ 4, dp
% 4);
95 return create_uniform(ctx
->block
, r
);
99 * Adreno's comparisons produce a 1 for true and 0 for false, in either 16 or
100 * 32-bit registers. We use NIR's 1-bit integers to represent bools, and
101 * trust that we will only see and/or/xor on those 1-bit values, so we can
102 * safely store NIR i1s in a 32-bit reg while always containing either a 1 or
107 * alu/sfu instructions:
110 static struct ir3_instruction
*
111 create_cov(struct ir3_context
*ctx
, struct ir3_instruction
*src
,
112 unsigned src_bitsize
, nir_op op
)
114 type_t src_type
, dst_type
;
118 case nir_op_f2f16_rtne
:
119 case nir_op_f2f16_rtz
:
127 switch (src_bitsize
) {
135 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
144 switch (src_bitsize
) {
155 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
164 switch (src_bitsize
) {
175 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
188 ir3_context_error(ctx
, "invalid conversion op: %u", op
);
199 case nir_op_f2f16_rtne
:
200 case nir_op_f2f16_rtz
:
242 ir3_context_error(ctx
, "invalid conversion op: %u", op
);
245 if (src_type
== dst_type
)
248 struct ir3_instruction
*cov
=
249 ir3_COV(ctx
->block
, src
, src_type
, dst_type
);
251 if (op
== nir_op_f2f16_rtne
)
252 cov
->regs
[0]->flags
|= IR3_REG_EVEN
;
258 emit_alu(struct ir3_context
*ctx
, nir_alu_instr
*alu
)
260 const nir_op_info
*info
= &nir_op_infos
[alu
->op
];
261 struct ir3_instruction
**dst
, *src
[info
->num_inputs
];
262 unsigned bs
[info
->num_inputs
]; /* bit size */
263 struct ir3_block
*b
= ctx
->block
;
264 unsigned dst_sz
, wrmask
;
265 type_t dst_type
= nir_dest_bit_size(alu
->dest
.dest
) == 16 ?
268 if (alu
->dest
.dest
.is_ssa
) {
269 dst_sz
= alu
->dest
.dest
.ssa
.num_components
;
270 wrmask
= (1 << dst_sz
) - 1;
272 dst_sz
= alu
->dest
.dest
.reg
.reg
->num_components
;
273 wrmask
= alu
->dest
.write_mask
;
276 dst
= ir3_get_dst(ctx
, &alu
->dest
.dest
, dst_sz
);
278 /* Vectors are special in that they have non-scalarized writemasks,
279 * and just take the first swizzle channel for each argument in
280 * order into each writemask channel.
282 if ((alu
->op
== nir_op_vec2
) ||
283 (alu
->op
== nir_op_vec3
) ||
284 (alu
->op
== nir_op_vec4
)) {
286 for (int i
= 0; i
< info
->num_inputs
; i
++) {
287 nir_alu_src
*asrc
= &alu
->src
[i
];
289 compile_assert(ctx
, !asrc
->abs
);
290 compile_assert(ctx
, !asrc
->negate
);
292 src
[i
] = ir3_get_src(ctx
, &asrc
->src
)[asrc
->swizzle
[0]];
294 src
[i
] = create_immed_typed(ctx
->block
, 0, dst_type
);
295 dst
[i
] = ir3_MOV(b
, src
[i
], dst_type
);
298 ir3_put_dst(ctx
, &alu
->dest
.dest
);
302 /* We also get mov's with more than one component for mov's so
303 * handle those specially:
305 if (alu
->op
== nir_op_mov
) {
306 nir_alu_src
*asrc
= &alu
->src
[0];
307 struct ir3_instruction
*const *src0
= ir3_get_src(ctx
, &asrc
->src
);
309 for (unsigned i
= 0; i
< dst_sz
; i
++) {
310 if (wrmask
& (1 << i
)) {
311 dst
[i
] = ir3_MOV(b
, src0
[asrc
->swizzle
[i
]], dst_type
);
317 ir3_put_dst(ctx
, &alu
->dest
.dest
);
321 /* General case: We can just grab the one used channel per src. */
322 for (int i
= 0; i
< info
->num_inputs
; i
++) {
323 unsigned chan
= ffs(alu
->dest
.write_mask
) - 1;
324 nir_alu_src
*asrc
= &alu
->src
[i
];
326 compile_assert(ctx
, !asrc
->abs
);
327 compile_assert(ctx
, !asrc
->negate
);
329 src
[i
] = ir3_get_src(ctx
, &asrc
->src
)[asrc
->swizzle
[chan
]];
330 bs
[i
] = nir_src_bit_size(asrc
->src
);
332 compile_assert(ctx
, src
[i
]);
337 case nir_op_f2f16_rtne
:
338 case nir_op_f2f16_rtz
:
361 dst
[0] = create_cov(ctx
, src
[0], bs
[0], alu
->op
);
364 case nir_op_fquantize2f16
:
365 dst
[0] = create_cov(ctx
,
366 create_cov(ctx
, src
[0], 32, nir_op_f2f16
),
370 dst
[0] = ir3_CMPS_F(b
,
372 create_immed_typed(b
, 0, bs
[0] == 16 ? TYPE_F16
: TYPE_F32
), 0);
373 dst
[0]->cat2
.condition
= IR3_COND_NE
;
377 /* i2b1 will appear when translating from nir_load_ubo or
378 * nir_intrinsic_load_ssbo, where any non-zero value is true.
380 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, create_immed(b
, 0), 0);
381 dst
[0]->cat2
.condition
= IR3_COND_NE
;
385 /* b2b1 will appear when translating from
387 * - nir_intrinsic_load_shared of a 32-bit 0/~0 value.
388 * - nir_intrinsic_load_constant of a 32-bit 0/~0 value
390 * A negate can turn those into a 1 or 0 for us.
392 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
396 /* b2b32 will appear when converting our 1-bit bools to a store_shared
399 * A negate can turn those into a ~0 for us.
401 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
405 dst
[0] = ir3_ABSNEG_F(b
, src
[0], IR3_REG_FNEG
);
408 dst
[0] = ir3_ABSNEG_F(b
, src
[0], IR3_REG_FABS
);
411 dst
[0] = ir3_MAX_F(b
, src
[0], 0, src
[1], 0);
414 dst
[0] = ir3_MIN_F(b
, src
[0], 0, src
[1], 0);
417 /* if there is just a single use of the src, and it supports
418 * (sat) bit, we can just fold the (sat) flag back to the
419 * src instruction and create a mov. This is easier for cp
422 * NOTE: a3xx definitely seen not working with flat bary.f. Same test
423 * uses ldlv on a4xx+, so not definitive. Seems rare enough to apply
426 * TODO probably opc_cat==4 is ok too
428 if (alu
->src
[0].src
.is_ssa
&&
429 src
[0]->opc
!= OPC_BARY_F
&&
430 (list_length(&alu
->src
[0].src
.ssa
->uses
) == 1) &&
431 ((opc_cat(src
[0]->opc
) == 2) || (opc_cat(src
[0]->opc
) == 3))) {
432 src
[0]->flags
|= IR3_INSTR_SAT
;
433 dst
[0] = ir3_MOV(b
, src
[0], dst_type
);
435 /* otherwise generate a max.f that saturates.. blob does
436 * similar (generating a cat2 mov using max.f)
438 dst
[0] = ir3_MAX_F(b
, src
[0], 0, src
[0], 0);
439 dst
[0]->flags
|= IR3_INSTR_SAT
;
443 dst
[0] = ir3_MUL_F(b
, src
[0], 0, src
[1], 0);
446 dst
[0] = ir3_ADD_F(b
, src
[0], 0, src
[1], 0);
449 dst
[0] = ir3_ADD_F(b
, src
[0], 0, src
[1], IR3_REG_FNEG
);
452 dst
[0] = ir3_MAD_F32(b
, src
[0], 0, src
[1], 0, src
[2], 0);
455 case nir_op_fddx_coarse
:
456 dst
[0] = ir3_DSX(b
, src
[0], 0);
457 dst
[0]->cat5
.type
= TYPE_F32
;
459 case nir_op_fddx_fine
:
460 dst
[0] = ir3_DSXPP_MACRO(b
, src
[0], 0);
461 dst
[0]->cat5
.type
= TYPE_F32
;
464 case nir_op_fddy_coarse
:
465 dst
[0] = ir3_DSY(b
, src
[0], 0);
466 dst
[0]->cat5
.type
= TYPE_F32
;
469 case nir_op_fddy_fine
:
470 dst
[0] = ir3_DSYPP_MACRO(b
, src
[0], 0);
471 dst
[0]->cat5
.type
= TYPE_F32
;
474 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
475 dst
[0]->cat2
.condition
= IR3_COND_LT
;
478 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
479 dst
[0]->cat2
.condition
= IR3_COND_GE
;
482 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
483 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
486 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
487 dst
[0]->cat2
.condition
= IR3_COND_NE
;
490 dst
[0] = ir3_CEIL_F(b
, src
[0], 0);
493 dst
[0] = ir3_FLOOR_F(b
, src
[0], 0);
496 dst
[0] = ir3_TRUNC_F(b
, src
[0], 0);
498 case nir_op_fround_even
:
499 dst
[0] = ir3_RNDNE_F(b
, src
[0], 0);
502 dst
[0] = ir3_SIGN_F(b
, src
[0], 0);
506 dst
[0] = ir3_SIN(b
, src
[0], 0);
509 dst
[0] = ir3_COS(b
, src
[0], 0);
512 dst
[0] = ir3_RSQ(b
, src
[0], 0);
515 dst
[0] = ir3_RCP(b
, src
[0], 0);
518 dst
[0] = ir3_LOG2(b
, src
[0], 0);
521 dst
[0] = ir3_EXP2(b
, src
[0], 0);
524 dst
[0] = ir3_SQRT(b
, src
[0], 0);
528 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SABS
);
531 dst
[0] = ir3_ADD_U(b
, src
[0], 0, src
[1], 0);
534 dst
[0] = ir3_AND_B(b
, src
[0], 0, src
[1], 0);
537 dst
[0] = ir3_MAX_S(b
, src
[0], 0, src
[1], 0);
540 dst
[0] = ir3_MAX_U(b
, src
[0], 0, src
[1], 0);
543 dst
[0] = ir3_MIN_S(b
, src
[0], 0, src
[1], 0);
546 dst
[0] = ir3_MIN_U(b
, src
[0], 0, src
[1], 0);
548 case nir_op_umul_low
:
549 dst
[0] = ir3_MULL_U(b
, src
[0], 0, src
[1], 0);
551 case nir_op_imadsh_mix16
:
552 dst
[0] = ir3_MADSH_M16(b
, src
[0], 0, src
[1], 0, src
[2], 0);
554 case nir_op_imad24_ir3
:
555 dst
[0] = ir3_MAD_S24(b
, src
[0], 0, src
[1], 0, src
[2], 0);
558 dst
[0] = ir3_MUL_S24(b
, src
[0], 0, src
[1], 0);
561 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
565 dst
[0] = ir3_SUB_U(b
, create_immed(ctx
->block
, 1), 0, src
[0], 0);
567 dst
[0] = ir3_NOT_B(b
, src
[0], 0);
571 dst
[0] = ir3_OR_B(b
, src
[0], 0, src
[1], 0);
574 dst
[0] = ir3_SHL_B(b
, src
[0], 0, src
[1], 0);
577 dst
[0] = ir3_ASHR_B(b
, src
[0], 0, src
[1], 0);
580 dst
[0] = ir3_SUB_U(b
, src
[0], 0, src
[1], 0);
583 dst
[0] = ir3_XOR_B(b
, src
[0], 0, src
[1], 0);
586 dst
[0] = ir3_SHR_B(b
, src
[0], 0, src
[1], 0);
589 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
590 dst
[0]->cat2
.condition
= IR3_COND_LT
;
593 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
594 dst
[0]->cat2
.condition
= IR3_COND_GE
;
597 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
598 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
601 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
602 dst
[0]->cat2
.condition
= IR3_COND_NE
;
605 dst
[0] = ir3_CMPS_U(b
, src
[0], 0, src
[1], 0);
606 dst
[0]->cat2
.condition
= IR3_COND_LT
;
609 dst
[0] = ir3_CMPS_U(b
, src
[0], 0, src
[1], 0);
610 dst
[0]->cat2
.condition
= IR3_COND_GE
;
614 struct ir3_instruction
*cond
= src
[0];
616 /* If src[0] is a negation (likely as a result of an ir3_b2n(cond)),
617 * we can ignore that and use original cond, since the nonzero-ness of
618 * cond stays the same.
620 if (cond
->opc
== OPC_ABSNEG_S
&&
622 (cond
->regs
[1]->flags
& (IR3_REG_SNEG
| IR3_REG_SABS
)) == IR3_REG_SNEG
) {
623 cond
= cond
->regs
[1]->instr
;
626 compile_assert(ctx
, bs
[1] == bs
[2]);
627 /* The condition's size has to match the other two arguments' size, so
628 * convert down if necessary.
631 struct hash_entry
*prev_entry
=
632 _mesa_hash_table_search(ctx
->sel_cond_conversions
, src
[0]);
634 cond
= prev_entry
->data
;
636 cond
= ir3_COV(b
, cond
, TYPE_U32
, TYPE_U16
);
637 _mesa_hash_table_insert(ctx
->sel_cond_conversions
, src
[0], cond
);
642 dst
[0] = ir3_SEL_B32(b
, src
[1], 0, cond
, 0, src
[2], 0);
644 dst
[0] = ir3_SEL_B16(b
, src
[1], 0, cond
, 0, src
[2], 0);
647 case nir_op_bit_count
: {
648 // TODO, we need to do this 16b at a time on a5xx+a6xx.. need to
649 // double check on earlier gen's. Once half-precision support is
650 // in place, this should probably move to a NIR lowering pass:
651 struct ir3_instruction
*hi
, *lo
;
653 hi
= ir3_COV(b
, ir3_SHR_B(b
, src
[0], 0, create_immed(b
, 16), 0),
655 lo
= ir3_COV(b
, src
[0], TYPE_U32
, TYPE_U16
);
657 hi
= ir3_CBITS_B(b
, hi
, 0);
658 lo
= ir3_CBITS_B(b
, lo
, 0);
660 // TODO maybe the builders should default to making dst half-precision
661 // if the src's were half precision, to make this less awkward.. otoh
662 // we should probably just do this lowering in NIR.
663 hi
->regs
[0]->flags
|= IR3_REG_HALF
;
664 lo
->regs
[0]->flags
|= IR3_REG_HALF
;
666 dst
[0] = ir3_ADD_S(b
, hi
, 0, lo
, 0);
667 dst
[0]->regs
[0]->flags
|= IR3_REG_HALF
;
668 dst
[0] = ir3_COV(b
, dst
[0], TYPE_U16
, TYPE_U32
);
671 case nir_op_ifind_msb
: {
672 struct ir3_instruction
*cmp
;
673 dst
[0] = ir3_CLZ_S(b
, src
[0], 0);
674 cmp
= ir3_CMPS_S(b
, dst
[0], 0, create_immed(b
, 0), 0);
675 cmp
->cat2
.condition
= IR3_COND_GE
;
676 dst
[0] = ir3_SEL_B32(b
,
677 ir3_SUB_U(b
, create_immed(b
, 31), 0, dst
[0], 0), 0,
681 case nir_op_ufind_msb
:
682 dst
[0] = ir3_CLZ_B(b
, src
[0], 0);
683 dst
[0] = ir3_SEL_B32(b
,
684 ir3_SUB_U(b
, create_immed(b
, 31), 0, dst
[0], 0), 0,
685 src
[0], 0, dst
[0], 0);
687 case nir_op_find_lsb
:
688 dst
[0] = ir3_BFREV_B(b
, src
[0], 0);
689 dst
[0] = ir3_CLZ_B(b
, dst
[0], 0);
691 case nir_op_bitfield_reverse
:
692 dst
[0] = ir3_BFREV_B(b
, src
[0], 0);
696 ir3_context_error(ctx
, "Unhandled ALU op: %s\n",
697 nir_op_infos
[alu
->op
].name
);
701 if (nir_alu_type_get_base_type(info
->output_type
) == nir_type_bool
) {
702 assert(nir_dest_bit_size(alu
->dest
.dest
) == 1 ||
703 alu
->op
== nir_op_b2b32
);
706 /* 1-bit values stored in 32-bit registers are only valid for certain
717 compile_assert(ctx
, nir_dest_bit_size(alu
->dest
.dest
) != 1);
721 ir3_put_dst(ctx
, &alu
->dest
.dest
);
725 emit_intrinsic_load_ubo_ldc(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
726 struct ir3_instruction
**dst
)
728 struct ir3_block
*b
= ctx
->block
;
730 unsigned ncomp
= intr
->num_components
;
731 struct ir3_instruction
*offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
732 struct ir3_instruction
*idx
= ir3_get_src(ctx
, &intr
->src
[0])[0];
733 struct ir3_instruction
*ldc
= ir3_LDC(b
, idx
, 0, offset
, 0);
734 ldc
->regs
[0]->wrmask
= MASK(ncomp
);
735 ldc
->cat6
.iim_val
= ncomp
;
736 ldc
->cat6
.d
= nir_intrinsic_component(intr
);
737 ldc
->cat6
.type
= TYPE_U32
;
739 ir3_handle_bindless_cat6(ldc
, intr
->src
[0]);
740 if (ldc
->flags
& IR3_INSTR_B
)
741 ctx
->so
->bindless_ubo
= true;
743 ir3_split_dest(b
, dst
, ldc
, 0, ncomp
);
747 /* handles direct/indirect UBO reads: */
749 emit_intrinsic_load_ubo(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
750 struct ir3_instruction
**dst
)
752 struct ir3_block
*b
= ctx
->block
;
753 struct ir3_instruction
*base_lo
, *base_hi
, *addr
, *src0
, *src1
;
754 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
755 unsigned ubo
= regid(const_state
->offsets
.ubo
, 0);
756 const unsigned ptrsz
= ir3_pointer_size(ctx
->compiler
);
760 /* First src is ubo index, which could either be an immed or not: */
761 src0
= ir3_get_src(ctx
, &intr
->src
[0])[0];
762 if (is_same_type_mov(src0
) &&
763 (src0
->regs
[1]->flags
& IR3_REG_IMMED
)) {
764 base_lo
= create_uniform(b
, ubo
+ (src0
->regs
[1]->iim_val
* ptrsz
));
765 base_hi
= create_uniform(b
, ubo
+ (src0
->regs
[1]->iim_val
* ptrsz
) + 1);
767 base_lo
= create_uniform_indirect(b
, ubo
, TYPE_U32
, ir3_get_addr0(ctx
, src0
, ptrsz
));
768 base_hi
= create_uniform_indirect(b
, ubo
+ 1, TYPE_U32
, ir3_get_addr0(ctx
, src0
, ptrsz
));
770 /* NOTE: since relative addressing is used, make sure constlen is
771 * at least big enough to cover all the UBO addresses, since the
772 * assembler won't know what the max address reg is.
774 ctx
->so
->constlen
= MAX2(ctx
->so
->constlen
,
775 const_state
->offsets
.ubo
+ (ctx
->s
->info
.num_ubos
* ptrsz
));
778 /* note: on 32bit gpu's base_hi is ignored and DCE'd */
781 if (nir_src_is_const(intr
->src
[1])) {
782 off
+= nir_src_as_uint(intr
->src
[1]);
784 /* For load_ubo_indirect, second src is indirect offset: */
785 src1
= ir3_get_src(ctx
, &intr
->src
[1])[0];
787 /* and add offset to addr: */
788 addr
= ir3_ADD_S(b
, addr
, 0, src1
, 0);
791 /* if offset is to large to encode in the ldg, split it out: */
792 if ((off
+ (intr
->num_components
* 4)) > 1024) {
793 /* split out the minimal amount to improve the odds that
794 * cp can fit the immediate in the add.s instruction:
796 unsigned off2
= off
+ (intr
->num_components
* 4) - 1024;
797 addr
= ir3_ADD_S(b
, addr
, 0, create_immed(b
, off2
), 0);
802 struct ir3_instruction
*carry
;
804 /* handle 32b rollover, ie:
805 * if (addr < base_lo)
808 carry
= ir3_CMPS_U(b
, addr
, 0, base_lo
, 0);
809 carry
->cat2
.condition
= IR3_COND_LT
;
810 base_hi
= ir3_ADD_S(b
, base_hi
, 0, carry
, 0);
812 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){ addr
, base_hi
}, 2);
815 for (int i
= 0; i
< intr
->num_components
; i
++) {
816 struct ir3_instruction
*load
=
817 ir3_LDG(b
, addr
, 0, create_immed(b
, 1), 0, /* num components */
818 create_immed(b
, off
+ i
* 4), 0);
819 load
->cat6
.type
= TYPE_U32
;
824 /* src[] = { block_index } */
826 emit_intrinsic_ssbo_size(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
827 struct ir3_instruction
**dst
)
829 if (ir3_bindless_resource(intr
->src
[0])) {
830 struct ir3_block
*b
= ctx
->block
;
831 struct ir3_instruction
*ibo
= ir3_ssbo_to_ibo(ctx
, intr
->src
[0]);
832 struct ir3_instruction
*resinfo
= ir3_RESINFO(b
, ibo
, 0);
833 resinfo
->cat6
.iim_val
= 1;
835 resinfo
->cat6
.type
= TYPE_U32
;
836 resinfo
->cat6
.typed
= false;
837 /* resinfo has no writemask and always writes out 3 components */
838 resinfo
->regs
[0]->wrmask
= MASK(3);
839 ir3_handle_bindless_cat6(resinfo
, intr
->src
[0]);
840 struct ir3_instruction
*resinfo_dst
;
841 ir3_split_dest(b
, &resinfo_dst
, resinfo
, 0, 1);
842 /* Unfortunately resinfo returns the array length, i.e. in dwords,
843 * while NIR expects us to return the size in bytes.
845 * TODO: fix this in NIR.
847 *dst
= ir3_SHL_B(b
, resinfo_dst
, 0, create_immed(b
, 2), 0);
851 /* SSBO size stored as a const starting at ssbo_sizes: */
852 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
853 unsigned blk_idx
= nir_src_as_uint(intr
->src
[0]);
854 unsigned idx
= regid(const_state
->offsets
.ssbo_sizes
, 0) +
855 const_state
->ssbo_size
.off
[blk_idx
];
857 debug_assert(const_state
->ssbo_size
.mask
& (1 << blk_idx
));
859 dst
[0] = create_uniform(ctx
->block
, idx
);
862 /* src[] = { offset }. const_index[] = { base } */
864 emit_intrinsic_load_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
865 struct ir3_instruction
**dst
)
867 struct ir3_block
*b
= ctx
->block
;
868 struct ir3_instruction
*ldl
, *offset
;
871 offset
= ir3_get_src(ctx
, &intr
->src
[0])[0];
872 base
= nir_intrinsic_base(intr
);
874 ldl
= ir3_LDL(b
, offset
, 0,
875 create_immed(b
, intr
->num_components
), 0,
876 create_immed(b
, base
), 0);
878 ldl
->cat6
.type
= utype_dst(intr
->dest
);
879 ldl
->regs
[0]->wrmask
= MASK(intr
->num_components
);
881 ldl
->barrier_class
= IR3_BARRIER_SHARED_R
;
882 ldl
->barrier_conflict
= IR3_BARRIER_SHARED_W
;
884 ir3_split_dest(b
, dst
, ldl
, 0, intr
->num_components
);
887 /* src[] = { value, offset }. const_index[] = { base, write_mask } */
889 emit_intrinsic_store_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
891 struct ir3_block
*b
= ctx
->block
;
892 struct ir3_instruction
*stl
, *offset
;
893 struct ir3_instruction
* const *value
;
894 unsigned base
, wrmask
, ncomp
;
896 value
= ir3_get_src(ctx
, &intr
->src
[0]);
897 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
899 base
= nir_intrinsic_base(intr
);
900 wrmask
= nir_intrinsic_write_mask(intr
);
901 ncomp
= ffs(~wrmask
) - 1;
903 assert(wrmask
== BITFIELD_MASK(intr
->num_components
));
905 stl
= ir3_STL(b
, offset
, 0,
906 ir3_create_collect(ctx
, value
, ncomp
), 0,
907 create_immed(b
, ncomp
), 0);
908 stl
->cat6
.dst_offset
= base
;
909 stl
->cat6
.type
= utype_src(intr
->src
[0]);
910 stl
->barrier_class
= IR3_BARRIER_SHARED_W
;
911 stl
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
913 array_insert(b
, b
->keeps
, stl
);
916 /* src[] = { offset }. const_index[] = { base } */
918 emit_intrinsic_load_shared_ir3(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
919 struct ir3_instruction
**dst
)
921 struct ir3_block
*b
= ctx
->block
;
922 struct ir3_instruction
*load
, *offset
;
925 offset
= ir3_get_src(ctx
, &intr
->src
[0])[0];
926 base
= nir_intrinsic_base(intr
);
928 load
= ir3_LDLW(b
, offset
, 0,
929 create_immed(b
, intr
->num_components
), 0,
930 create_immed(b
, base
), 0);
932 /* for a650, use LDL for tess ctrl inputs: */
933 if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
&& ctx
->compiler
->tess_use_shared
)
936 load
->cat6
.type
= utype_dst(intr
->dest
);
937 load
->regs
[0]->wrmask
= MASK(intr
->num_components
);
939 load
->barrier_class
= IR3_BARRIER_SHARED_R
;
940 load
->barrier_conflict
= IR3_BARRIER_SHARED_W
;
942 ir3_split_dest(b
, dst
, load
, 0, intr
->num_components
);
945 /* src[] = { value, offset }. const_index[] = { base } */
947 emit_intrinsic_store_shared_ir3(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
949 struct ir3_block
*b
= ctx
->block
;
950 struct ir3_instruction
*store
, *offset
;
951 struct ir3_instruction
* const *value
;
953 value
= ir3_get_src(ctx
, &intr
->src
[0]);
954 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
956 store
= ir3_STLW(b
, offset
, 0,
957 ir3_create_collect(ctx
, value
, intr
->num_components
), 0,
958 create_immed(b
, intr
->num_components
), 0);
960 /* for a650, use STL for vertex outputs used by tess ctrl shader: */
961 if (ctx
->so
->type
== MESA_SHADER_VERTEX
&& ctx
->so
->key
.tessellation
&&
962 ctx
->compiler
->tess_use_shared
)
963 store
->opc
= OPC_STL
;
965 store
->cat6
.dst_offset
= nir_intrinsic_base(intr
);
966 store
->cat6
.type
= utype_src(intr
->src
[0]);
967 store
->barrier_class
= IR3_BARRIER_SHARED_W
;
968 store
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
970 array_insert(b
, b
->keeps
, store
);
974 * CS shared variable atomic intrinsics
976 * All of the shared variable atomic memory operations read a value from
977 * memory, compute a new value using one of the operations below, write the
978 * new value to memory, and return the original value read.
980 * All operations take 2 sources except CompSwap that takes 3. These
983 * 0: The offset into the shared variable storage region that the atomic
984 * operation will operate on.
985 * 1: The data parameter to the atomic function (i.e. the value to add
986 * in shared_atomic_add, etc).
987 * 2: For CompSwap only: the second data parameter.
989 static struct ir3_instruction
*
990 emit_intrinsic_atomic_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
992 struct ir3_block
*b
= ctx
->block
;
993 struct ir3_instruction
*atomic
, *src0
, *src1
;
994 type_t type
= TYPE_U32
;
996 src0
= ir3_get_src(ctx
, &intr
->src
[0])[0]; /* offset */
997 src1
= ir3_get_src(ctx
, &intr
->src
[1])[0]; /* value */
999 switch (intr
->intrinsic
) {
1000 case nir_intrinsic_shared_atomic_add
:
1001 atomic
= ir3_ATOMIC_ADD(b
, src0
, 0, src1
, 0);
1003 case nir_intrinsic_shared_atomic_imin
:
1004 atomic
= ir3_ATOMIC_MIN(b
, src0
, 0, src1
, 0);
1007 case nir_intrinsic_shared_atomic_umin
:
1008 atomic
= ir3_ATOMIC_MIN(b
, src0
, 0, src1
, 0);
1010 case nir_intrinsic_shared_atomic_imax
:
1011 atomic
= ir3_ATOMIC_MAX(b
, src0
, 0, src1
, 0);
1014 case nir_intrinsic_shared_atomic_umax
:
1015 atomic
= ir3_ATOMIC_MAX(b
, src0
, 0, src1
, 0);
1017 case nir_intrinsic_shared_atomic_and
:
1018 atomic
= ir3_ATOMIC_AND(b
, src0
, 0, src1
, 0);
1020 case nir_intrinsic_shared_atomic_or
:
1021 atomic
= ir3_ATOMIC_OR(b
, src0
, 0, src1
, 0);
1023 case nir_intrinsic_shared_atomic_xor
:
1024 atomic
= ir3_ATOMIC_XOR(b
, src0
, 0, src1
, 0);
1026 case nir_intrinsic_shared_atomic_exchange
:
1027 atomic
= ir3_ATOMIC_XCHG(b
, src0
, 0, src1
, 0);
1029 case nir_intrinsic_shared_atomic_comp_swap
:
1030 /* for cmpxchg, src1 is [ui]vec2(data, compare): */
1031 src1
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1032 ir3_get_src(ctx
, &intr
->src
[2])[0],
1035 atomic
= ir3_ATOMIC_CMPXCHG(b
, src0
, 0, src1
, 0);
1041 atomic
->cat6
.iim_val
= 1;
1043 atomic
->cat6
.type
= type
;
1044 atomic
->barrier_class
= IR3_BARRIER_SHARED_W
;
1045 atomic
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
1047 /* even if nothing consume the result, we can't DCE the instruction: */
1048 array_insert(b
, b
->keeps
, atomic
);
1053 struct tex_src_info
{
1055 unsigned tex_base
, samp_base
, tex_idx
, samp_idx
;
1056 /* For normal tex instructions */
1057 unsigned base
, combined_idx
, a1_val
, flags
;
1058 struct ir3_instruction
*samp_tex
;
1061 /* TODO handle actual indirect/dynamic case.. which is going to be weird
1062 * to handle with the image_mapping table..
1064 static struct tex_src_info
1065 get_image_samp_tex_src(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1067 struct ir3_block
*b
= ctx
->block
;
1068 struct tex_src_info info
= { 0 };
1069 nir_intrinsic_instr
*bindless_tex
= ir3_bindless_resource(intr
->src
[0]);
1070 ctx
->so
->bindless_tex
= true;
1074 info
.flags
|= IR3_INSTR_B
;
1076 /* Gather information required to determine which encoding to
1077 * choose as well as for prefetch.
1079 info
.tex_base
= nir_intrinsic_desc_set(bindless_tex
);
1080 bool tex_const
= nir_src_is_const(bindless_tex
->src
[0]);
1082 info
.tex_idx
= nir_src_as_uint(bindless_tex
->src
[0]);
1085 /* Choose encoding. */
1086 if (tex_const
&& info
.tex_idx
< 256) {
1087 if (info
.tex_idx
< 16) {
1088 /* Everything fits within the instruction */
1089 info
.base
= info
.tex_base
;
1090 info
.combined_idx
= info
.samp_idx
| (info
.tex_idx
<< 4);
1092 info
.base
= info
.tex_base
;
1093 info
.a1_val
= info
.tex_idx
<< 3;
1094 info
.combined_idx
= 0;
1095 info
.flags
|= IR3_INSTR_A1EN
;
1097 info
.samp_tex
= NULL
;
1099 info
.flags
|= IR3_INSTR_S2EN
;
1100 info
.base
= info
.tex_base
;
1102 /* Note: the indirect source is now a vec2 instead of hvec2 */
1103 struct ir3_instruction
*texture
, *sampler
;
1105 texture
= ir3_get_src(ctx
, &intr
->src
[0])[0];
1106 sampler
= create_immed(b
, 0);
1107 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1113 info
.flags
|= IR3_INSTR_S2EN
;
1114 unsigned slot
= nir_src_as_uint(intr
->src
[0]);
1115 unsigned tex_idx
= ir3_image_to_tex(&ctx
->so
->image_mapping
, slot
);
1116 struct ir3_instruction
*texture
, *sampler
;
1118 texture
= create_immed_typed(ctx
->block
, tex_idx
, TYPE_U16
);
1119 sampler
= create_immed_typed(ctx
->block
, tex_idx
, TYPE_U16
);
1121 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1130 static struct ir3_instruction
*
1131 emit_sam(struct ir3_context
*ctx
, opc_t opc
, struct tex_src_info info
,
1132 type_t type
, unsigned wrmask
, struct ir3_instruction
*src0
,
1133 struct ir3_instruction
*src1
)
1135 struct ir3_instruction
*sam
, *addr
;
1136 if (info
.flags
& IR3_INSTR_A1EN
) {
1137 addr
= ir3_get_addr1(ctx
, info
.a1_val
);
1139 sam
= ir3_SAM(ctx
->block
, opc
, type
, 0b1111, info
.flags
,
1140 info
.samp_tex
, src0
, src1
);
1141 if (info
.flags
& IR3_INSTR_A1EN
) {
1142 ir3_instr_set_address(sam
, addr
);
1144 if (info
.flags
& IR3_INSTR_B
) {
1145 sam
->cat5
.tex_base
= info
.base
;
1146 sam
->cat5
.samp
= info
.combined_idx
;
1151 /* src[] = { deref, coord, sample_index }. const_index[] = {} */
1153 emit_intrinsic_load_image(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1154 struct ir3_instruction
**dst
)
1156 struct ir3_block
*b
= ctx
->block
;
1157 struct tex_src_info info
= get_image_samp_tex_src(ctx
, intr
);
1158 struct ir3_instruction
*sam
;
1159 struct ir3_instruction
* const *src0
= ir3_get_src(ctx
, &intr
->src
[1]);
1160 struct ir3_instruction
*coords
[4];
1161 unsigned flags
, ncoords
= ir3_get_image_coords(intr
, &flags
);
1162 type_t type
= ir3_get_type_for_image_intrinsic(intr
);
1164 /* hmm, this seems a bit odd, but it is what blob does and (at least
1165 * a5xx) just faults on bogus addresses otherwise:
1167 if (flags
& IR3_INSTR_3D
) {
1168 flags
&= ~IR3_INSTR_3D
;
1169 flags
|= IR3_INSTR_A
;
1171 info
.flags
|= flags
;
1173 for (unsigned i
= 0; i
< ncoords
; i
++)
1174 coords
[i
] = src0
[i
];
1177 coords
[ncoords
++] = create_immed(b
, 0);
1179 sam
= emit_sam(ctx
, OPC_ISAM
, info
, type
, 0b1111,
1180 ir3_create_collect(ctx
, coords
, ncoords
), NULL
);
1182 sam
->barrier_class
= IR3_BARRIER_IMAGE_R
;
1183 sam
->barrier_conflict
= IR3_BARRIER_IMAGE_W
;
1185 ir3_split_dest(b
, dst
, sam
, 0, 4);
1188 /* A4xx version of image_size, see ir3_a6xx.c for newer resinfo version. */
1190 emit_intrinsic_image_size_tex(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1191 struct ir3_instruction
**dst
)
1193 struct ir3_block
*b
= ctx
->block
;
1194 struct tex_src_info info
= get_image_samp_tex_src(ctx
, intr
);
1195 struct ir3_instruction
*sam
, *lod
;
1196 unsigned flags
, ncoords
= ir3_get_image_coords(intr
, &flags
);
1197 type_t dst_type
= nir_dest_bit_size(intr
->dest
) == 16 ?
1198 TYPE_U16
: TYPE_U32
;
1200 info
.flags
|= flags
;
1201 assert(nir_src_as_uint(intr
->src
[1]) == 0);
1202 lod
= create_immed(b
, 0);
1203 sam
= emit_sam(ctx
, OPC_GETSIZE
, info
, dst_type
, 0b1111, lod
, NULL
);
1205 /* Array size actually ends up in .w rather than .z. This doesn't
1206 * matter for miplevel 0, but for higher mips the value in z is
1207 * minified whereas w stays. Also, the value in TEX_CONST_3_DEPTH is
1208 * returned, which means that we have to add 1 to it for arrays for
1211 * Note use a temporary dst and then copy, since the size of the dst
1212 * array that is passed in is based on nir's understanding of the
1213 * result size, not the hardware's
1215 struct ir3_instruction
*tmp
[4];
1217 ir3_split_dest(b
, tmp
, sam
, 0, 4);
1219 /* get_size instruction returns size in bytes instead of texels
1220 * for imageBuffer, so we need to divide it by the pixel size
1221 * of the image format.
1223 * TODO: This is at least true on a5xx. Check other gens.
1225 if (nir_intrinsic_image_dim(intr
) == GLSL_SAMPLER_DIM_BUF
) {
1226 /* Since all the possible values the divisor can take are
1227 * power-of-two (4, 8, or 16), the division is implemented
1229 * During shader setup, the log2 of the image format's
1230 * bytes-per-pixel should have been emitted in 2nd slot of
1231 * image_dims. See ir3_shader::emit_image_dims().
1233 const struct ir3_const_state
*const_state
=
1234 ir3_const_state(ctx
->so
);
1235 unsigned cb
= regid(const_state
->offsets
.image_dims
, 0) +
1236 const_state
->image_dims
.off
[nir_src_as_uint(intr
->src
[0])];
1237 struct ir3_instruction
*aux
= create_uniform(b
, cb
+ 1);
1239 tmp
[0] = ir3_SHR_B(b
, tmp
[0], 0, aux
, 0);
1242 for (unsigned i
= 0; i
< ncoords
; i
++)
1245 if (flags
& IR3_INSTR_A
) {
1246 if (ctx
->compiler
->levels_add_one
) {
1247 dst
[ncoords
-1] = ir3_ADD_U(b
, tmp
[3], 0, create_immed(b
, 1), 0);
1249 dst
[ncoords
-1] = ir3_MOV(b
, tmp
[3], TYPE_U32
);
1255 emit_intrinsic_barrier(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1257 struct ir3_block
*b
= ctx
->block
;
1258 struct ir3_instruction
*barrier
;
1260 switch (intr
->intrinsic
) {
1261 case nir_intrinsic_control_barrier
:
1262 barrier
= ir3_BAR(b
);
1263 barrier
->cat7
.g
= true;
1264 barrier
->cat7
.l
= true;
1265 barrier
->flags
= IR3_INSTR_SS
| IR3_INSTR_SY
;
1266 barrier
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1268 case nir_intrinsic_memory_barrier
:
1269 barrier
= ir3_FENCE(b
);
1270 barrier
->cat7
.g
= true;
1271 barrier
->cat7
.r
= true;
1272 barrier
->cat7
.w
= true;
1273 barrier
->cat7
.l
= true;
1274 barrier
->barrier_class
= IR3_BARRIER_IMAGE_W
|
1275 IR3_BARRIER_BUFFER_W
;
1276 barrier
->barrier_conflict
=
1277 IR3_BARRIER_IMAGE_R
| IR3_BARRIER_IMAGE_W
|
1278 IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1280 case nir_intrinsic_memory_barrier_buffer
:
1281 barrier
= ir3_FENCE(b
);
1282 barrier
->cat7
.g
= true;
1283 barrier
->cat7
.r
= true;
1284 barrier
->cat7
.w
= true;
1285 barrier
->barrier_class
= IR3_BARRIER_BUFFER_W
;
1286 barrier
->barrier_conflict
= IR3_BARRIER_BUFFER_R
|
1287 IR3_BARRIER_BUFFER_W
;
1289 case nir_intrinsic_memory_barrier_image
:
1290 // TODO double check if this should have .g set
1291 barrier
= ir3_FENCE(b
);
1292 barrier
->cat7
.g
= true;
1293 barrier
->cat7
.r
= true;
1294 barrier
->cat7
.w
= true;
1295 barrier
->barrier_class
= IR3_BARRIER_IMAGE_W
;
1296 barrier
->barrier_conflict
= IR3_BARRIER_IMAGE_R
|
1297 IR3_BARRIER_IMAGE_W
;
1299 case nir_intrinsic_memory_barrier_shared
:
1300 barrier
= ir3_FENCE(b
);
1301 barrier
->cat7
.g
= true;
1302 barrier
->cat7
.l
= true;
1303 barrier
->cat7
.r
= true;
1304 barrier
->cat7
.w
= true;
1305 barrier
->barrier_class
= IR3_BARRIER_SHARED_W
;
1306 barrier
->barrier_conflict
= IR3_BARRIER_SHARED_R
|
1307 IR3_BARRIER_SHARED_W
;
1309 case nir_intrinsic_group_memory_barrier
:
1310 barrier
= ir3_FENCE(b
);
1311 barrier
->cat7
.g
= true;
1312 barrier
->cat7
.l
= true;
1313 barrier
->cat7
.r
= true;
1314 barrier
->cat7
.w
= true;
1315 barrier
->barrier_class
= IR3_BARRIER_SHARED_W
|
1316 IR3_BARRIER_IMAGE_W
|
1317 IR3_BARRIER_BUFFER_W
;
1318 barrier
->barrier_conflict
=
1319 IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
|
1320 IR3_BARRIER_IMAGE_R
| IR3_BARRIER_IMAGE_W
|
1321 IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1327 /* make sure barrier doesn't get DCE'd */
1328 array_insert(b
, b
->keeps
, barrier
);
1331 static void add_sysval_input_compmask(struct ir3_context
*ctx
,
1332 gl_system_value slot
, unsigned compmask
,
1333 struct ir3_instruction
*instr
)
1335 struct ir3_shader_variant
*so
= ctx
->so
;
1336 unsigned n
= so
->inputs_count
++;
1338 assert(instr
->opc
== OPC_META_INPUT
);
1339 instr
->input
.inidx
= n
;
1340 instr
->input
.sysval
= slot
;
1342 so
->inputs
[n
].sysval
= true;
1343 so
->inputs
[n
].slot
= slot
;
1344 so
->inputs
[n
].compmask
= compmask
;
1345 so
->inputs
[n
].interpolate
= INTERP_MODE_FLAT
;
1349 static struct ir3_instruction
*
1350 create_sysval_input(struct ir3_context
*ctx
, gl_system_value slot
,
1354 struct ir3_instruction
*sysval
= create_input(ctx
, compmask
);
1355 add_sysval_input_compmask(ctx
, slot
, compmask
, sysval
);
1359 static struct ir3_instruction
*
1360 get_barycentric(struct ir3_context
*ctx
, enum ir3_bary bary
)
1362 static const gl_system_value sysval_base
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1364 STATIC_ASSERT(sysval_base
+ IJ_PERSP_PIXEL
== SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
);
1365 STATIC_ASSERT(sysval_base
+ IJ_PERSP_SAMPLE
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
);
1366 STATIC_ASSERT(sysval_base
+ IJ_PERSP_CENTROID
== SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID
);
1367 STATIC_ASSERT(sysval_base
+ IJ_PERSP_SIZE
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SIZE
);
1368 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_PIXEL
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
);
1369 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_CENTROID
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID
);
1370 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_SAMPLE
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
);
1372 if (!ctx
->ij
[bary
]) {
1373 struct ir3_instruction
*xy
[2];
1374 struct ir3_instruction
*ij
;
1376 ij
= create_sysval_input(ctx
, sysval_base
+ bary
, 0x3);
1377 ir3_split_dest(ctx
->block
, xy
, ij
, 0, 2);
1379 ctx
->ij
[bary
] = ir3_create_collect(ctx
, xy
, 2);
1382 return ctx
->ij
[bary
];
1385 /* TODO: make this a common NIR helper?
1386 * there is a nir_system_value_from_intrinsic but it takes nir_intrinsic_op so it
1387 * can't be extended to work with this
1389 static gl_system_value
1390 nir_intrinsic_barycentric_sysval(nir_intrinsic_instr
*intr
)
1392 enum glsl_interp_mode interp_mode
= nir_intrinsic_interp_mode(intr
);
1393 gl_system_value sysval
;
1395 switch (intr
->intrinsic
) {
1396 case nir_intrinsic_load_barycentric_pixel
:
1397 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1398 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
;
1400 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1402 case nir_intrinsic_load_barycentric_centroid
:
1403 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1404 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID
;
1406 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID
;
1408 case nir_intrinsic_load_barycentric_sample
:
1409 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1410 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
;
1412 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
;
1415 unreachable("invalid barycentric intrinsic");
1422 emit_intrinsic_barycentric(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1423 struct ir3_instruction
**dst
)
1425 gl_system_value sysval
= nir_intrinsic_barycentric_sysval(intr
);
1427 if (!ctx
->so
->key
.msaa
) {
1428 if (sysval
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
)
1429 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1430 if (sysval
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
)
1431 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
;
1434 enum ir3_bary bary
= sysval
- SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1436 struct ir3_instruction
*ij
= get_barycentric(ctx
, bary
);
1437 ir3_split_dest(ctx
->block
, dst
, ij
, 0, 2);
1440 static struct ir3_instruction
*
1441 get_frag_coord(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1443 if (!ctx
->frag_coord
) {
1444 struct ir3_block
*b
= ctx
->in_block
;
1445 struct ir3_instruction
*xyzw
[4];
1446 struct ir3_instruction
*hw_frag_coord
;
1448 hw_frag_coord
= create_sysval_input(ctx
, SYSTEM_VALUE_FRAG_COORD
, 0xf);
1449 ir3_split_dest(b
, xyzw
, hw_frag_coord
, 0, 4);
1451 /* for frag_coord.xy, we get unsigned values.. we need
1452 * to subtract (integer) 8 and divide by 16 (right-
1453 * shift by 4) then convert to float:
1457 * mov.u32f32 dst, tmp
1460 for (int i
= 0; i
< 2; i
++) {
1461 xyzw
[i
] = ir3_COV(b
, xyzw
[i
], TYPE_U32
, TYPE_F32
);
1462 xyzw
[i
] = ir3_MUL_F(b
, xyzw
[i
], 0, create_immed(b
, fui(1.0 / 16.0)), 0);
1465 ctx
->frag_coord
= ir3_create_collect(ctx
, xyzw
, 4);
1468 ctx
->so
->fragcoord_compmask
|=
1469 nir_ssa_def_components_read(&intr
->dest
.ssa
);
1471 return ctx
->frag_coord
;
1475 emit_intrinsic(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1477 const nir_intrinsic_info
*info
= &nir_intrinsic_infos
[intr
->intrinsic
];
1478 struct ir3_instruction
**dst
;
1479 struct ir3_instruction
* const *src
;
1480 struct ir3_block
*b
= ctx
->block
;
1481 unsigned dest_components
= nir_intrinsic_dest_components(intr
);
1484 if (info
->has_dest
) {
1485 dst
= ir3_get_dst(ctx
, &intr
->dest
, dest_components
);
1490 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
1491 const unsigned primitive_param
= const_state
->offsets
.primitive_param
* 4;
1492 const unsigned primitive_map
= const_state
->offsets
.primitive_map
* 4;
1494 switch (intr
->intrinsic
) {
1495 case nir_intrinsic_load_uniform
:
1496 idx
= nir_intrinsic_base(intr
);
1497 if (nir_src_is_const(intr
->src
[0])) {
1498 idx
+= nir_src_as_uint(intr
->src
[0]);
1499 for (int i
= 0; i
< dest_components
; i
++) {
1500 dst
[i
] = create_uniform_typed(b
, idx
+ i
,
1501 nir_dest_bit_size(intr
->dest
) == 16 ? TYPE_F16
: TYPE_F32
);
1504 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1505 for (int i
= 0; i
< dest_components
; i
++) {
1506 dst
[i
] = create_uniform_indirect(b
, idx
+ i
,
1507 nir_dest_bit_size(intr
->dest
) == 16 ? TYPE_F16
: TYPE_F32
,
1508 ir3_get_addr0(ctx
, src
[0], 1));
1510 /* NOTE: if relative addressing is used, we set
1511 * constlen in the compiler (to worst-case value)
1512 * since we don't know in the assembler what the max
1513 * addr reg value can be:
1515 ctx
->so
->constlen
= MAX2(ctx
->so
->constlen
,
1516 const_state
->ubo_state
.size
/ 16);
1520 case nir_intrinsic_load_vs_primitive_stride_ir3
:
1521 dst
[0] = create_uniform(b
, primitive_param
+ 0);
1523 case nir_intrinsic_load_vs_vertex_stride_ir3
:
1524 dst
[0] = create_uniform(b
, primitive_param
+ 1);
1526 case nir_intrinsic_load_hs_patch_stride_ir3
:
1527 dst
[0] = create_uniform(b
, primitive_param
+ 2);
1529 case nir_intrinsic_load_patch_vertices_in
:
1530 dst
[0] = create_uniform(b
, primitive_param
+ 3);
1532 case nir_intrinsic_load_tess_param_base_ir3
:
1533 dst
[0] = create_uniform(b
, primitive_param
+ 4);
1534 dst
[1] = create_uniform(b
, primitive_param
+ 5);
1536 case nir_intrinsic_load_tess_factor_base_ir3
:
1537 dst
[0] = create_uniform(b
, primitive_param
+ 6);
1538 dst
[1] = create_uniform(b
, primitive_param
+ 7);
1541 case nir_intrinsic_load_primitive_location_ir3
:
1542 idx
= nir_intrinsic_driver_location(intr
);
1543 dst
[0] = create_uniform(b
, primitive_map
+ idx
);
1546 case nir_intrinsic_load_gs_header_ir3
:
1547 dst
[0] = ctx
->gs_header
;
1549 case nir_intrinsic_load_tcs_header_ir3
:
1550 dst
[0] = ctx
->tcs_header
;
1553 case nir_intrinsic_load_primitive_id
:
1554 dst
[0] = ctx
->primitive_id
;
1557 case nir_intrinsic_load_tess_coord
:
1558 if (!ctx
->tess_coord
) {
1560 create_sysval_input(ctx
, SYSTEM_VALUE_TESS_COORD
, 0x3);
1562 ir3_split_dest(b
, dst
, ctx
->tess_coord
, 0, 2);
1564 /* Unused, but ir3_put_dst() below wants to free something */
1565 dst
[2] = create_immed(b
, 0);
1568 case nir_intrinsic_end_patch_ir3
:
1569 assert(ctx
->so
->type
== MESA_SHADER_TESS_CTRL
);
1570 struct ir3_instruction
*end
= ir3_PREDE(b
);
1571 array_insert(b
, b
->keeps
, end
);
1573 end
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1574 end
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
1577 case nir_intrinsic_store_global_ir3
: {
1578 struct ir3_instruction
*value
, *addr
, *offset
;
1579 unsigned ncomp
= nir_intrinsic_src_components(intr
, 0);
1581 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1582 ir3_get_src(ctx
, &intr
->src
[1])[0],
1583 ir3_get_src(ctx
, &intr
->src
[1])[1]
1586 offset
= ir3_get_src(ctx
, &intr
->src
[2])[0];
1588 value
= ir3_create_collect(ctx
, ir3_get_src(ctx
, &intr
->src
[0]), ncomp
);
1590 struct ir3_instruction
*stg
=
1591 ir3_STG_G(ctx
->block
, addr
, 0, value
, 0,
1592 create_immed(ctx
->block
, ncomp
), 0, offset
, 0);
1593 stg
->cat6
.type
= TYPE_U32
;
1594 stg
->cat6
.iim_val
= 1;
1596 array_insert(b
, b
->keeps
, stg
);
1598 stg
->barrier_class
= IR3_BARRIER_BUFFER_W
;
1599 stg
->barrier_conflict
= IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1603 case nir_intrinsic_load_global_ir3
: {
1604 struct ir3_instruction
*addr
, *offset
;
1606 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1607 ir3_get_src(ctx
, &intr
->src
[0])[0],
1608 ir3_get_src(ctx
, &intr
->src
[0])[1]
1611 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
1613 struct ir3_instruction
*load
=
1614 ir3_LDG(b
, addr
, 0, create_immed(ctx
->block
, dest_components
),
1616 load
->cat6
.type
= TYPE_U32
;
1617 load
->regs
[0]->wrmask
= MASK(dest_components
);
1619 load
->barrier_class
= IR3_BARRIER_BUFFER_R
;
1620 load
->barrier_conflict
= IR3_BARRIER_BUFFER_W
;
1622 ir3_split_dest(b
, dst
, load
, 0, dest_components
);
1626 case nir_intrinsic_load_ubo
:
1627 emit_intrinsic_load_ubo(ctx
, intr
, dst
);
1629 case nir_intrinsic_load_ubo_vec4
:
1630 emit_intrinsic_load_ubo_ldc(ctx
, intr
, dst
);
1632 case nir_intrinsic_load_frag_coord
:
1633 ir3_split_dest(b
, dst
, get_frag_coord(ctx
, intr
), 0, 4);
1635 case nir_intrinsic_load_sample_pos_from_id
: {
1636 /* NOTE: blob seems to always use TYPE_F16 and then cov.f16f32,
1637 * but that doesn't seem necessary.
1639 struct ir3_instruction
*offset
=
1640 ir3_RGETPOS(b
, ir3_get_src(ctx
, &intr
->src
[0])[0], 0);
1641 offset
->regs
[0]->wrmask
= 0x3;
1642 offset
->cat5
.type
= TYPE_F32
;
1644 ir3_split_dest(b
, dst
, offset
, 0, 2);
1648 case nir_intrinsic_load_size_ir3
:
1649 if (!ctx
->ij
[IJ_PERSP_SIZE
]) {
1650 ctx
->ij
[IJ_PERSP_SIZE
] =
1651 create_sysval_input(ctx
, SYSTEM_VALUE_BARYCENTRIC_PERSP_SIZE
, 0x1);
1653 dst
[0] = ctx
->ij
[IJ_PERSP_SIZE
];
1655 case nir_intrinsic_load_barycentric_centroid
:
1656 case nir_intrinsic_load_barycentric_sample
:
1657 case nir_intrinsic_load_barycentric_pixel
:
1658 emit_intrinsic_barycentric(ctx
, intr
, dst
);
1660 case nir_intrinsic_load_interpolated_input
:
1661 idx
= nir_intrinsic_base(intr
);
1662 comp
= nir_intrinsic_component(intr
);
1663 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1664 if (nir_src_is_const(intr
->src
[1])) {
1665 struct ir3_instruction
*coord
= ir3_create_collect(ctx
, src
, 2);
1666 idx
+= nir_src_as_uint(intr
->src
[1]);
1667 for (int i
= 0; i
< dest_components
; i
++) {
1668 unsigned inloc
= idx
* 4 + i
+ comp
;
1669 if (ctx
->so
->inputs
[idx
].bary
&&
1670 !ctx
->so
->inputs
[idx
].use_ldlv
) {
1671 dst
[i
] = ir3_BARY_F(b
, create_immed(b
, inloc
), 0, coord
, 0);
1673 /* for non-varyings use the pre-setup input, since
1674 * that is easier than mapping things back to a
1675 * nir_variable to figure out what it is.
1677 dst
[i
] = ctx
->inputs
[inloc
];
1678 compile_assert(ctx
, dst
[i
]);
1682 ir3_context_error(ctx
, "unhandled");
1685 case nir_intrinsic_load_input
:
1686 idx
= nir_intrinsic_base(intr
);
1687 comp
= nir_intrinsic_component(intr
);
1688 if (nir_src_is_const(intr
->src
[0])) {
1689 idx
+= nir_src_as_uint(intr
->src
[0]);
1690 for (int i
= 0; i
< dest_components
; i
++) {
1691 unsigned n
= idx
* 4 + i
+ comp
;
1692 dst
[i
] = ctx
->inputs
[n
];
1693 compile_assert(ctx
, ctx
->inputs
[n
]);
1696 ir3_context_error(ctx
, "unhandled");
1699 /* All SSBO intrinsics should have been lowered by 'lower_io_offsets'
1700 * pass and replaced by an ir3-specifc version that adds the
1701 * dword-offset in the last source.
1703 case nir_intrinsic_load_ssbo_ir3
:
1704 ctx
->funcs
->emit_intrinsic_load_ssbo(ctx
, intr
, dst
);
1706 case nir_intrinsic_store_ssbo_ir3
:
1707 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1708 !ctx
->s
->info
.fs
.early_fragment_tests
)
1709 ctx
->so
->no_earlyz
= true;
1710 ctx
->funcs
->emit_intrinsic_store_ssbo(ctx
, intr
);
1712 case nir_intrinsic_get_buffer_size
:
1713 emit_intrinsic_ssbo_size(ctx
, intr
, dst
);
1715 case nir_intrinsic_ssbo_atomic_add_ir3
:
1716 case nir_intrinsic_ssbo_atomic_imin_ir3
:
1717 case nir_intrinsic_ssbo_atomic_umin_ir3
:
1718 case nir_intrinsic_ssbo_atomic_imax_ir3
:
1719 case nir_intrinsic_ssbo_atomic_umax_ir3
:
1720 case nir_intrinsic_ssbo_atomic_and_ir3
:
1721 case nir_intrinsic_ssbo_atomic_or_ir3
:
1722 case nir_intrinsic_ssbo_atomic_xor_ir3
:
1723 case nir_intrinsic_ssbo_atomic_exchange_ir3
:
1724 case nir_intrinsic_ssbo_atomic_comp_swap_ir3
:
1725 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1726 !ctx
->s
->info
.fs
.early_fragment_tests
)
1727 ctx
->so
->no_earlyz
= true;
1728 dst
[0] = ctx
->funcs
->emit_intrinsic_atomic_ssbo(ctx
, intr
);
1730 case nir_intrinsic_load_shared
:
1731 emit_intrinsic_load_shared(ctx
, intr
, dst
);
1733 case nir_intrinsic_store_shared
:
1734 emit_intrinsic_store_shared(ctx
, intr
);
1736 case nir_intrinsic_shared_atomic_add
:
1737 case nir_intrinsic_shared_atomic_imin
:
1738 case nir_intrinsic_shared_atomic_umin
:
1739 case nir_intrinsic_shared_atomic_imax
:
1740 case nir_intrinsic_shared_atomic_umax
:
1741 case nir_intrinsic_shared_atomic_and
:
1742 case nir_intrinsic_shared_atomic_or
:
1743 case nir_intrinsic_shared_atomic_xor
:
1744 case nir_intrinsic_shared_atomic_exchange
:
1745 case nir_intrinsic_shared_atomic_comp_swap
:
1746 dst
[0] = emit_intrinsic_atomic_shared(ctx
, intr
);
1748 case nir_intrinsic_image_load
:
1749 emit_intrinsic_load_image(ctx
, intr
, dst
);
1751 case nir_intrinsic_bindless_image_load
:
1752 /* Bindless uses the IBO state, which doesn't have swizzle filled out,
1753 * so using isam doesn't work.
1755 * TODO: can we use isam if we fill out more fields?
1757 ctx
->funcs
->emit_intrinsic_load_image(ctx
, intr
, dst
);
1759 case nir_intrinsic_image_store
:
1760 case nir_intrinsic_bindless_image_store
:
1761 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1762 !ctx
->s
->info
.fs
.early_fragment_tests
)
1763 ctx
->so
->no_earlyz
= true;
1764 ctx
->funcs
->emit_intrinsic_store_image(ctx
, intr
);
1766 case nir_intrinsic_image_size
:
1767 case nir_intrinsic_bindless_image_size
:
1768 ctx
->funcs
->emit_intrinsic_image_size(ctx
, intr
, dst
);
1770 case nir_intrinsic_image_atomic_add
:
1771 case nir_intrinsic_bindless_image_atomic_add
:
1772 case nir_intrinsic_image_atomic_imin
:
1773 case nir_intrinsic_bindless_image_atomic_imin
:
1774 case nir_intrinsic_image_atomic_umin
:
1775 case nir_intrinsic_bindless_image_atomic_umin
:
1776 case nir_intrinsic_image_atomic_imax
:
1777 case nir_intrinsic_bindless_image_atomic_imax
:
1778 case nir_intrinsic_image_atomic_umax
:
1779 case nir_intrinsic_bindless_image_atomic_umax
:
1780 case nir_intrinsic_image_atomic_and
:
1781 case nir_intrinsic_bindless_image_atomic_and
:
1782 case nir_intrinsic_image_atomic_or
:
1783 case nir_intrinsic_bindless_image_atomic_or
:
1784 case nir_intrinsic_image_atomic_xor
:
1785 case nir_intrinsic_bindless_image_atomic_xor
:
1786 case nir_intrinsic_image_atomic_exchange
:
1787 case nir_intrinsic_bindless_image_atomic_exchange
:
1788 case nir_intrinsic_image_atomic_comp_swap
:
1789 case nir_intrinsic_bindless_image_atomic_comp_swap
:
1790 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1791 !ctx
->s
->info
.fs
.early_fragment_tests
)
1792 ctx
->so
->no_earlyz
= true;
1793 dst
[0] = ctx
->funcs
->emit_intrinsic_atomic_image(ctx
, intr
);
1795 case nir_intrinsic_control_barrier
:
1796 case nir_intrinsic_memory_barrier
:
1797 case nir_intrinsic_group_memory_barrier
:
1798 case nir_intrinsic_memory_barrier_buffer
:
1799 case nir_intrinsic_memory_barrier_image
:
1800 case nir_intrinsic_memory_barrier_shared
:
1801 emit_intrinsic_barrier(ctx
, intr
);
1802 /* note that blk ptr no longer valid, make that obvious: */
1805 case nir_intrinsic_store_output
:
1806 idx
= nir_intrinsic_base(intr
);
1807 comp
= nir_intrinsic_component(intr
);
1808 compile_assert(ctx
, nir_src_is_const(intr
->src
[1]));
1809 idx
+= nir_src_as_uint(intr
->src
[1]);
1811 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1812 for (int i
= 0; i
< nir_intrinsic_src_components(intr
, 0); i
++) {
1813 unsigned n
= idx
* 4 + i
+ comp
;
1814 ctx
->outputs
[n
] = src
[i
];
1817 case nir_intrinsic_load_base_vertex
:
1818 case nir_intrinsic_load_first_vertex
:
1819 if (!ctx
->basevertex
) {
1820 ctx
->basevertex
= create_driver_param(ctx
, IR3_DP_VTXID_BASE
);
1822 dst
[0] = ctx
->basevertex
;
1824 case nir_intrinsic_load_draw_id
:
1825 if (!ctx
->draw_id
) {
1826 ctx
->draw_id
= create_driver_param(ctx
, IR3_DP_DRAWID
);
1828 dst
[0] = ctx
->draw_id
;
1830 case nir_intrinsic_load_base_instance
:
1831 if (!ctx
->base_instance
) {
1832 ctx
->base_instance
= create_driver_param(ctx
, IR3_DP_INSTID_BASE
);
1834 dst
[0] = ctx
->base_instance
;
1836 case nir_intrinsic_load_view_index
:
1837 if (!ctx
->view_index
) {
1838 ctx
->view_index
= create_sysval_input(ctx
, SYSTEM_VALUE_VIEW_INDEX
, 0x1);
1840 dst
[0] = ctx
->view_index
;
1842 case nir_intrinsic_load_vertex_id_zero_base
:
1843 case nir_intrinsic_load_vertex_id
:
1844 if (!ctx
->vertex_id
) {
1845 gl_system_value sv
= (intr
->intrinsic
== nir_intrinsic_load_vertex_id
) ?
1846 SYSTEM_VALUE_VERTEX_ID
: SYSTEM_VALUE_VERTEX_ID_ZERO_BASE
;
1847 ctx
->vertex_id
= create_sysval_input(ctx
, sv
, 0x1);
1849 dst
[0] = ctx
->vertex_id
;
1851 case nir_intrinsic_load_instance_id
:
1852 if (!ctx
->instance_id
) {
1853 ctx
->instance_id
= create_sysval_input(ctx
, SYSTEM_VALUE_INSTANCE_ID
, 0x1);
1855 dst
[0] = ctx
->instance_id
;
1857 case nir_intrinsic_load_sample_id
:
1858 ctx
->so
->per_samp
= true;
1860 case nir_intrinsic_load_sample_id_no_per_sample
:
1861 if (!ctx
->samp_id
) {
1862 ctx
->samp_id
= create_sysval_input(ctx
, SYSTEM_VALUE_SAMPLE_ID
, 0x1);
1863 ctx
->samp_id
->regs
[0]->flags
|= IR3_REG_HALF
;
1865 dst
[0] = ir3_COV(b
, ctx
->samp_id
, TYPE_U16
, TYPE_U32
);
1867 case nir_intrinsic_load_sample_mask_in
:
1868 if (!ctx
->samp_mask_in
) {
1869 ctx
->samp_mask_in
= create_sysval_input(ctx
, SYSTEM_VALUE_SAMPLE_MASK_IN
, 0x1);
1871 dst
[0] = ctx
->samp_mask_in
;
1873 case nir_intrinsic_load_user_clip_plane
:
1874 idx
= nir_intrinsic_ucp_id(intr
);
1875 for (int i
= 0; i
< dest_components
; i
++) {
1876 unsigned n
= idx
* 4 + i
;
1877 dst
[i
] = create_driver_param(ctx
, IR3_DP_UCP0_X
+ n
);
1880 case nir_intrinsic_load_front_face
:
1881 if (!ctx
->frag_face
) {
1882 ctx
->so
->frag_face
= true;
1883 ctx
->frag_face
= create_sysval_input(ctx
, SYSTEM_VALUE_FRONT_FACE
, 0x1);
1884 ctx
->frag_face
->regs
[0]->flags
|= IR3_REG_HALF
;
1886 /* for fragface, we get -1 for back and 0 for front. However this is
1887 * the inverse of what nir expects (where ~0 is true).
1889 dst
[0] = ir3_CMPS_S(b
,
1891 create_immed_typed(b
, 0, TYPE_U16
), 0);
1892 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
1894 case nir_intrinsic_load_local_invocation_id
:
1895 if (!ctx
->local_invocation_id
) {
1896 ctx
->local_invocation_id
=
1897 create_sysval_input(ctx
, SYSTEM_VALUE_LOCAL_INVOCATION_ID
, 0x7);
1899 ir3_split_dest(b
, dst
, ctx
->local_invocation_id
, 0, 3);
1901 case nir_intrinsic_load_work_group_id
:
1902 if (!ctx
->work_group_id
) {
1903 ctx
->work_group_id
=
1904 create_sysval_input(ctx
, SYSTEM_VALUE_WORK_GROUP_ID
, 0x7);
1905 ctx
->work_group_id
->regs
[0]->flags
|= IR3_REG_HIGH
;
1907 ir3_split_dest(b
, dst
, ctx
->work_group_id
, 0, 3);
1909 case nir_intrinsic_load_num_work_groups
:
1910 for (int i
= 0; i
< dest_components
; i
++) {
1911 dst
[i
] = create_driver_param(ctx
, IR3_DP_NUM_WORK_GROUPS_X
+ i
);
1914 case nir_intrinsic_load_local_group_size
:
1915 for (int i
= 0; i
< dest_components
; i
++) {
1916 dst
[i
] = create_driver_param(ctx
, IR3_DP_LOCAL_GROUP_SIZE_X
+ i
);
1919 case nir_intrinsic_discard_if
:
1920 case nir_intrinsic_discard
: {
1921 struct ir3_instruction
*cond
, *kill
;
1923 if (intr
->intrinsic
== nir_intrinsic_discard_if
) {
1924 /* conditional discard: */
1925 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1928 /* unconditional discard: */
1929 cond
= create_immed(b
, 1);
1932 /* NOTE: only cmps.*.* can write p0.x: */
1933 cond
= ir3_CMPS_S(b
, cond
, 0, create_immed(b
, 0), 0);
1934 cond
->cat2
.condition
= IR3_COND_NE
;
1936 /* condition always goes in predicate register: */
1937 cond
->regs
[0]->num
= regid(REG_P0
, 0);
1938 cond
->regs
[0]->flags
&= ~IR3_REG_SSA
;
1940 kill
= ir3_KILL(b
, cond
, 0);
1941 kill
->regs
[1]->num
= regid(REG_P0
, 0);
1942 array_insert(ctx
->ir
, ctx
->ir
->predicates
, kill
);
1944 array_insert(b
, b
->keeps
, kill
);
1945 ctx
->so
->has_kill
= true;
1950 case nir_intrinsic_cond_end_ir3
: {
1951 struct ir3_instruction
*cond
, *kill
;
1953 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1956 /* NOTE: only cmps.*.* can write p0.x: */
1957 cond
= ir3_CMPS_S(b
, cond
, 0, create_immed(b
, 0), 0);
1958 cond
->cat2
.condition
= IR3_COND_NE
;
1960 /* condition always goes in predicate register: */
1961 cond
->regs
[0]->num
= regid(REG_P0
, 0);
1963 kill
= ir3_PREDT(b
, cond
, 0);
1965 kill
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1966 kill
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
1968 array_insert(ctx
->ir
, ctx
->ir
->predicates
, kill
);
1969 array_insert(b
, b
->keeps
, kill
);
1973 case nir_intrinsic_load_shared_ir3
:
1974 emit_intrinsic_load_shared_ir3(ctx
, intr
, dst
);
1976 case nir_intrinsic_store_shared_ir3
:
1977 emit_intrinsic_store_shared_ir3(ctx
, intr
);
1979 case nir_intrinsic_bindless_resource_ir3
:
1980 dst
[0] = ir3_get_src(ctx
, &intr
->src
[0])[0];
1983 ir3_context_error(ctx
, "Unhandled intrinsic type: %s\n",
1984 nir_intrinsic_infos
[intr
->intrinsic
].name
);
1989 ir3_put_dst(ctx
, &intr
->dest
);
1993 emit_load_const(struct ir3_context
*ctx
, nir_load_const_instr
*instr
)
1995 struct ir3_instruction
**dst
= ir3_get_dst_ssa(ctx
, &instr
->def
,
1996 instr
->def
.num_components
);
1998 if (instr
->def
.bit_size
== 16) {
1999 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
2000 dst
[i
] = create_immed_typed(ctx
->block
,
2001 instr
->value
[i
].u16
,
2004 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
2005 dst
[i
] = create_immed_typed(ctx
->block
,
2006 instr
->value
[i
].u32
,
2013 emit_undef(struct ir3_context
*ctx
, nir_ssa_undef_instr
*undef
)
2015 struct ir3_instruction
**dst
= ir3_get_dst_ssa(ctx
, &undef
->def
,
2016 undef
->def
.num_components
);
2017 type_t type
= (undef
->def
.bit_size
== 16) ? TYPE_U16
: TYPE_U32
;
2019 /* backend doesn't want undefined instructions, so just plug
2022 for (int i
= 0; i
< undef
->def
.num_components
; i
++)
2023 dst
[i
] = create_immed_typed(ctx
->block
, fui(0.0), type
);
2027 * texture fetch/sample instructions:
2031 get_tex_dest_type(nir_tex_instr
*tex
)
2035 switch (nir_alu_type_get_base_type(tex
->dest_type
)) {
2036 case nir_type_invalid
:
2037 case nir_type_float
:
2038 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_F16
: TYPE_F32
;
2041 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_S16
: TYPE_S32
;
2045 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_U16
: TYPE_U32
;
2048 unreachable("bad dest_type");
2055 tex_info(nir_tex_instr
*tex
, unsigned *flagsp
, unsigned *coordsp
)
2057 unsigned coords
= glsl_get_sampler_dim_coordinate_components(tex
->sampler_dim
);
2060 /* note: would use tex->coord_components.. except txs.. also,
2061 * since array index goes after shadow ref, we don't want to
2065 flags
|= IR3_INSTR_3D
;
2067 if (tex
->is_shadow
&& tex
->op
!= nir_texop_lod
)
2068 flags
|= IR3_INSTR_S
;
2070 if (tex
->is_array
&& tex
->op
!= nir_texop_lod
)
2071 flags
|= IR3_INSTR_A
;
2077 /* Gets the sampler/texture idx as a hvec2. Which could either be dynamic
2078 * or immediate (in which case it will get lowered later to a non .s2en
2079 * version of the tex instruction which encode tex/samp as immediates:
2081 static struct tex_src_info
2082 get_tex_samp_tex_src(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2084 struct ir3_block
*b
= ctx
->block
;
2085 struct tex_src_info info
= { 0 };
2086 int texture_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_texture_handle
);
2087 int sampler_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_sampler_handle
);
2088 struct ir3_instruction
*texture
, *sampler
;
2090 if (texture_idx
>= 0 || sampler_idx
>= 0) {
2092 info
.flags
|= IR3_INSTR_B
;
2094 /* Gather information required to determine which encoding to
2095 * choose as well as for prefetch.
2097 nir_intrinsic_instr
*bindless_tex
= NULL
;
2099 if (texture_idx
>= 0) {
2100 ctx
->so
->bindless_tex
= true;
2101 bindless_tex
= ir3_bindless_resource(tex
->src
[texture_idx
].src
);
2102 assert(bindless_tex
);
2103 info
.tex_base
= nir_intrinsic_desc_set(bindless_tex
);
2104 tex_const
= nir_src_is_const(bindless_tex
->src
[0]);
2106 info
.tex_idx
= nir_src_as_uint(bindless_tex
->src
[0]);
2108 /* To simplify some of the logic below, assume the index is
2109 * constant 0 when it's not enabled.
2114 nir_intrinsic_instr
*bindless_samp
= NULL
;
2116 if (sampler_idx
>= 0) {
2117 ctx
->so
->bindless_samp
= true;
2118 bindless_samp
= ir3_bindless_resource(tex
->src
[sampler_idx
].src
);
2119 assert(bindless_samp
);
2120 info
.samp_base
= nir_intrinsic_desc_set(bindless_samp
);
2121 samp_const
= nir_src_is_const(bindless_samp
->src
[0]);
2123 info
.samp_idx
= nir_src_as_uint(bindless_samp
->src
[0]);
2129 /* Choose encoding. */
2130 if (tex_const
&& samp_const
&& info
.tex_idx
< 256 && info
.samp_idx
< 256) {
2131 if (info
.tex_idx
< 16 && info
.samp_idx
< 16 &&
2132 (!bindless_tex
|| !bindless_samp
|| info
.tex_base
== info
.samp_base
)) {
2133 /* Everything fits within the instruction */
2134 info
.base
= info
.tex_base
;
2135 info
.combined_idx
= info
.samp_idx
| (info
.tex_idx
<< 4);
2137 info
.base
= info
.tex_base
;
2138 info
.a1_val
= info
.tex_idx
<< 3 | info
.samp_base
;
2139 info
.combined_idx
= info
.samp_idx
;
2140 info
.flags
|= IR3_INSTR_A1EN
;
2142 info
.samp_tex
= NULL
;
2144 info
.flags
|= IR3_INSTR_S2EN
;
2145 /* In the indirect case, we only use a1.x to store the sampler
2146 * base if it differs from the texture base.
2148 if (!bindless_tex
|| !bindless_samp
|| info
.tex_base
== info
.samp_base
) {
2149 info
.base
= info
.tex_base
;
2151 info
.base
= info
.tex_base
;
2152 info
.a1_val
= info
.samp_base
;
2153 info
.flags
|= IR3_INSTR_A1EN
;
2156 /* Note: the indirect source is now a vec2 instead of hvec2, and
2157 * for some reason the texture and sampler are swapped.
2159 struct ir3_instruction
*texture
, *sampler
;
2162 texture
= ir3_get_src(ctx
, &tex
->src
[texture_idx
].src
)[0];
2164 texture
= create_immed(b
, 0);
2167 if (bindless_samp
) {
2168 sampler
= ir3_get_src(ctx
, &tex
->src
[sampler_idx
].src
)[0];
2170 sampler
= create_immed(b
, 0);
2172 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2178 info
.flags
|= IR3_INSTR_S2EN
;
2179 texture_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_texture_offset
);
2180 sampler_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_sampler_offset
);
2181 if (texture_idx
>= 0) {
2182 texture
= ir3_get_src(ctx
, &tex
->src
[texture_idx
].src
)[0];
2183 texture
= ir3_COV(ctx
->block
, texture
, TYPE_U32
, TYPE_U16
);
2185 /* TODO what to do for dynamic case? I guess we only need the
2186 * max index for astc srgb workaround so maybe not a problem
2187 * to worry about if we don't enable indirect samplers for
2190 ctx
->max_texture_index
= MAX2(ctx
->max_texture_index
, tex
->texture_index
);
2191 texture
= create_immed_typed(ctx
->block
, tex
->texture_index
, TYPE_U16
);
2192 info
.tex_idx
= tex
->texture_index
;
2195 if (sampler_idx
>= 0) {
2196 sampler
= ir3_get_src(ctx
, &tex
->src
[sampler_idx
].src
)[0];
2197 sampler
= ir3_COV(ctx
->block
, sampler
, TYPE_U32
, TYPE_U16
);
2199 sampler
= create_immed_typed(ctx
->block
, tex
->sampler_index
, TYPE_U16
);
2200 info
.samp_idx
= tex
->texture_index
;
2203 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2213 emit_tex(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2215 struct ir3_block
*b
= ctx
->block
;
2216 struct ir3_instruction
**dst
, *sam
, *src0
[12], *src1
[4];
2217 struct ir3_instruction
* const *coord
, * const *off
, * const *ddx
, * const *ddy
;
2218 struct ir3_instruction
*lod
, *compare
, *proj
, *sample_index
;
2219 struct tex_src_info info
= { 0 };
2220 bool has_bias
= false, has_lod
= false, has_proj
= false, has_off
= false;
2221 unsigned i
, coords
, flags
, ncomp
;
2222 unsigned nsrc0
= 0, nsrc1
= 0;
2226 ncomp
= nir_dest_num_components(tex
->dest
);
2228 coord
= off
= ddx
= ddy
= NULL
;
2229 lod
= proj
= compare
= sample_index
= NULL
;
2231 dst
= ir3_get_dst(ctx
, &tex
->dest
, ncomp
);
2233 for (unsigned i
= 0; i
< tex
->num_srcs
; i
++) {
2234 switch (tex
->src
[i
].src_type
) {
2235 case nir_tex_src_coord
:
2236 coord
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2238 case nir_tex_src_bias
:
2239 lod
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2242 case nir_tex_src_lod
:
2243 lod
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2246 case nir_tex_src_comparator
: /* shadow comparator */
2247 compare
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2249 case nir_tex_src_projector
:
2250 proj
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2253 case nir_tex_src_offset
:
2254 off
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2257 case nir_tex_src_ddx
:
2258 ddx
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2260 case nir_tex_src_ddy
:
2261 ddy
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2263 case nir_tex_src_ms_index
:
2264 sample_index
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2266 case nir_tex_src_texture_offset
:
2267 case nir_tex_src_sampler_offset
:
2268 case nir_tex_src_texture_handle
:
2269 case nir_tex_src_sampler_handle
:
2270 /* handled in get_tex_samp_src() */
2273 ir3_context_error(ctx
, "Unhandled NIR tex src type: %d\n",
2274 tex
->src
[i
].src_type
);
2280 case nir_texop_tex_prefetch
:
2281 compile_assert(ctx
, !has_bias
);
2282 compile_assert(ctx
, !has_lod
);
2283 compile_assert(ctx
, !compare
);
2284 compile_assert(ctx
, !has_proj
);
2285 compile_assert(ctx
, !has_off
);
2286 compile_assert(ctx
, !ddx
);
2287 compile_assert(ctx
, !ddy
);
2288 compile_assert(ctx
, !sample_index
);
2289 compile_assert(ctx
, nir_tex_instr_src_index(tex
, nir_tex_src_texture_offset
) < 0);
2290 compile_assert(ctx
, nir_tex_instr_src_index(tex
, nir_tex_src_sampler_offset
) < 0);
2292 if (ctx
->so
->num_sampler_prefetch
< ctx
->prefetch_limit
) {
2293 opc
= OPC_META_TEX_PREFETCH
;
2294 ctx
->so
->num_sampler_prefetch
++;
2298 case nir_texop_tex
: opc
= has_lod
? OPC_SAML
: OPC_SAM
; break;
2299 case nir_texop_txb
: opc
= OPC_SAMB
; break;
2300 case nir_texop_txl
: opc
= OPC_SAML
; break;
2301 case nir_texop_txd
: opc
= OPC_SAMGQ
; break;
2302 case nir_texop_txf
: opc
= OPC_ISAML
; break;
2303 case nir_texop_lod
: opc
= OPC_GETLOD
; break;
2305 /* NOTE: a4xx might need to emulate gather w/ txf (this is
2306 * what blob does, seems gather is broken?), and a3xx did
2307 * not support it (but probably could also emulate).
2309 switch (tex
->component
) {
2310 case 0: opc
= OPC_GATHER4R
; break;
2311 case 1: opc
= OPC_GATHER4G
; break;
2312 case 2: opc
= OPC_GATHER4B
; break;
2313 case 3: opc
= OPC_GATHER4A
; break;
2316 case nir_texop_txf_ms_fb
:
2317 case nir_texop_txf_ms
: opc
= OPC_ISAMM
; break;
2319 ir3_context_error(ctx
, "Unhandled NIR tex type: %d\n", tex
->op
);
2323 tex_info(tex
, &flags
, &coords
);
2326 * lay out the first argument in the proper order:
2327 * - actual coordinates first
2328 * - shadow reference
2331 * - starting at offset 4, dpdx.xy, dpdy.xy
2333 * bias/lod go into the second arg
2336 /* insert tex coords: */
2337 for (i
= 0; i
< coords
; i
++)
2342 /* scale up integer coords for TXF based on the LOD */
2343 if (ctx
->compiler
->unminify_coords
&& (opc
== OPC_ISAML
)) {
2345 for (i
= 0; i
< coords
; i
++)
2346 src0
[i
] = ir3_SHL_B(b
, src0
[i
], 0, lod
, 0);
2350 /* hw doesn't do 1d, so we treat it as 2d with
2351 * height of 1, and patch up the y coord.
2354 src0
[nsrc0
++] = create_immed(b
, 0);
2356 src0
[nsrc0
++] = create_immed(b
, fui(0.5));
2360 if (tex
->is_shadow
&& tex
->op
!= nir_texop_lod
)
2361 src0
[nsrc0
++] = compare
;
2363 if (tex
->is_array
&& tex
->op
!= nir_texop_lod
) {
2364 struct ir3_instruction
*idx
= coord
[coords
];
2366 /* the array coord for cube arrays needs 0.5 added to it */
2367 if (ctx
->compiler
->array_index_add_half
&& !is_isam(opc
))
2368 idx
= ir3_ADD_F(b
, idx
, 0, create_immed(b
, fui(0.5)), 0);
2370 src0
[nsrc0
++] = idx
;
2374 src0
[nsrc0
++] = proj
;
2375 flags
|= IR3_INSTR_P
;
2378 /* pad to 4, then ddx/ddy: */
2379 if (tex
->op
== nir_texop_txd
) {
2381 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2382 for (i
= 0; i
< coords
; i
++)
2383 src0
[nsrc0
++] = ddx
[i
];
2385 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2386 for (i
= 0; i
< coords
; i
++)
2387 src0
[nsrc0
++] = ddy
[i
];
2389 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2392 /* NOTE a3xx (and possibly a4xx?) might be different, using isaml
2393 * with scaled x coord according to requested sample:
2395 if (opc
== OPC_ISAMM
) {
2396 if (ctx
->compiler
->txf_ms_with_isaml
) {
2397 /* the samples are laid out in x dimension as
2399 * x_ms = (x << ms) + sample_index;
2401 struct ir3_instruction
*ms
;
2402 ms
= create_immed(b
, (ctx
->samples
>> (2 * tex
->texture_index
)) & 3);
2404 src0
[0] = ir3_SHL_B(b
, src0
[0], 0, ms
, 0);
2405 src0
[0] = ir3_ADD_U(b
, src0
[0], 0, sample_index
, 0);
2409 src0
[nsrc0
++] = sample_index
;
2414 * second argument (if applicable):
2419 if (has_off
| has_lod
| has_bias
) {
2421 unsigned off_coords
= coords
;
2422 if (tex
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
)
2424 for (i
= 0; i
< off_coords
; i
++)
2425 src1
[nsrc1
++] = off
[i
];
2427 src1
[nsrc1
++] = create_immed(b
, fui(0.0));
2428 flags
|= IR3_INSTR_O
;
2431 if (has_lod
| has_bias
)
2432 src1
[nsrc1
++] = lod
;
2435 type
= get_tex_dest_type(tex
);
2437 if (opc
== OPC_GETLOD
)
2441 if (tex
->op
== nir_texop_txf_ms_fb
) {
2442 /* only expect a single txf_ms_fb per shader: */
2443 compile_assert(ctx
, !ctx
->so
->fb_read
);
2444 compile_assert(ctx
, ctx
->so
->type
== MESA_SHADER_FRAGMENT
);
2446 ctx
->so
->fb_read
= true;
2447 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2448 create_immed_typed(ctx
->block
, ctx
->so
->num_samp
, TYPE_U16
),
2449 create_immed_typed(ctx
->block
, ctx
->so
->num_samp
, TYPE_U16
),
2451 info
.flags
= IR3_INSTR_S2EN
;
2453 ctx
->so
->num_samp
++;
2455 info
= get_tex_samp_tex_src(ctx
, tex
);
2458 struct ir3_instruction
*col0
= ir3_create_collect(ctx
, src0
, nsrc0
);
2459 struct ir3_instruction
*col1
= ir3_create_collect(ctx
, src1
, nsrc1
);
2461 if (opc
== OPC_META_TEX_PREFETCH
) {
2462 int idx
= nir_tex_instr_src_index(tex
, nir_tex_src_coord
);
2464 compile_assert(ctx
, tex
->src
[idx
].src
.is_ssa
);
2466 sam
= ir3_META_TEX_PREFETCH(b
);
2467 __ssa_dst(sam
)->wrmask
= MASK(ncomp
); /* dst */
2468 __ssa_src(sam
, get_barycentric(ctx
, IJ_PERSP_PIXEL
), 0);
2469 sam
->prefetch
.input_offset
=
2470 ir3_nir_coord_offset(tex
->src
[idx
].src
.ssa
);
2471 /* make sure not to add irrelevant flags like S2EN */
2472 sam
->flags
= flags
| (info
.flags
& IR3_INSTR_B
);
2473 sam
->prefetch
.tex
= info
.tex_idx
;
2474 sam
->prefetch
.samp
= info
.samp_idx
;
2475 sam
->prefetch
.tex_base
= info
.tex_base
;
2476 sam
->prefetch
.samp_base
= info
.samp_base
;
2478 info
.flags
|= flags
;
2479 sam
= emit_sam(ctx
, opc
, info
, type
, MASK(ncomp
), col0
, col1
);
2482 if ((ctx
->astc_srgb
& (1 << tex
->texture_index
)) && !nir_tex_instr_is_query(tex
)) {
2483 assert(opc
!= OPC_META_TEX_PREFETCH
);
2485 /* only need first 3 components: */
2486 sam
->regs
[0]->wrmask
= 0x7;
2487 ir3_split_dest(b
, dst
, sam
, 0, 3);
2489 /* we need to sample the alpha separately with a non-ASTC
2492 sam
= ir3_SAM(b
, opc
, type
, 0b1000, flags
| info
.flags
,
2493 info
.samp_tex
, col0
, col1
);
2495 array_insert(ctx
->ir
, ctx
->ir
->astc_srgb
, sam
);
2497 /* fixup .w component: */
2498 ir3_split_dest(b
, &dst
[3], sam
, 3, 1);
2500 /* normal (non-workaround) case: */
2501 ir3_split_dest(b
, dst
, sam
, 0, ncomp
);
2504 /* GETLOD returns results in 4.8 fixed point */
2505 if (opc
== OPC_GETLOD
) {
2506 struct ir3_instruction
*factor
= create_immed(b
, fui(1.0 / 256));
2508 compile_assert(ctx
, tex
->dest_type
== nir_type_float
);
2509 for (i
= 0; i
< 2; i
++) {
2510 dst
[i
] = ir3_MUL_F(b
, ir3_COV(b
, dst
[i
], TYPE_S32
, TYPE_F32
), 0,
2515 ir3_put_dst(ctx
, &tex
->dest
);
2519 emit_tex_info(struct ir3_context
*ctx
, nir_tex_instr
*tex
, unsigned idx
)
2521 struct ir3_block
*b
= ctx
->block
;
2522 struct ir3_instruction
**dst
, *sam
;
2523 type_t dst_type
= get_tex_dest_type(tex
);
2524 struct tex_src_info info
= get_tex_samp_tex_src(ctx
, tex
);
2526 dst
= ir3_get_dst(ctx
, &tex
->dest
, 1);
2528 sam
= emit_sam(ctx
, OPC_GETINFO
, info
, dst_type
, 1 << idx
, NULL
, NULL
);
2530 /* even though there is only one component, since it ends
2531 * up in .y/.z/.w rather than .x, we need a split_dest()
2533 ir3_split_dest(b
, dst
, sam
, idx
, 1);
2535 /* The # of levels comes from getinfo.z. We need to add 1 to it, since
2536 * the value in TEX_CONST_0 is zero-based.
2538 if (ctx
->compiler
->levels_add_one
)
2539 dst
[0] = ir3_ADD_U(b
, dst
[0], 0, create_immed(b
, 1), 0);
2541 ir3_put_dst(ctx
, &tex
->dest
);
2545 emit_tex_txs(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2547 struct ir3_block
*b
= ctx
->block
;
2548 struct ir3_instruction
**dst
, *sam
;
2549 struct ir3_instruction
*lod
;
2550 unsigned flags
, coords
;
2551 type_t dst_type
= get_tex_dest_type(tex
);
2552 struct tex_src_info info
= get_tex_samp_tex_src(ctx
, tex
);
2554 tex_info(tex
, &flags
, &coords
);
2555 info
.flags
|= flags
;
2557 /* Actually we want the number of dimensions, not coordinates. This
2558 * distinction only matters for cubes.
2560 if (tex
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
)
2563 dst
= ir3_get_dst(ctx
, &tex
->dest
, 4);
2565 int lod_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_lod
);
2566 compile_assert(ctx
, lod_idx
>= 0);
2568 lod
= ir3_get_src(ctx
, &tex
->src
[lod_idx
].src
)[0];
2570 sam
= emit_sam(ctx
, OPC_GETSIZE
, info
, dst_type
, 0b1111, lod
, NULL
);
2571 ir3_split_dest(b
, dst
, sam
, 0, 4);
2573 /* Array size actually ends up in .w rather than .z. This doesn't
2574 * matter for miplevel 0, but for higher mips the value in z is
2575 * minified whereas w stays. Also, the value in TEX_CONST_3_DEPTH is
2576 * returned, which means that we have to add 1 to it for arrays.
2578 if (tex
->is_array
) {
2579 if (ctx
->compiler
->levels_add_one
) {
2580 dst
[coords
] = ir3_ADD_U(b
, dst
[3], 0, create_immed(b
, 1), 0);
2582 dst
[coords
] = ir3_MOV(b
, dst
[3], TYPE_U32
);
2586 ir3_put_dst(ctx
, &tex
->dest
);
2590 emit_jump(struct ir3_context
*ctx
, nir_jump_instr
*jump
)
2592 switch (jump
->type
) {
2593 case nir_jump_break
:
2594 case nir_jump_continue
:
2595 case nir_jump_return
:
2596 /* I *think* we can simply just ignore this, and use the
2597 * successor block link to figure out where we need to
2598 * jump to for break/continue
2602 ir3_context_error(ctx
, "Unhandled NIR jump type: %d\n", jump
->type
);
2608 emit_instr(struct ir3_context
*ctx
, nir_instr
*instr
)
2610 switch (instr
->type
) {
2611 case nir_instr_type_alu
:
2612 emit_alu(ctx
, nir_instr_as_alu(instr
));
2614 case nir_instr_type_deref
:
2615 /* ignored, handled as part of the intrinsic they are src to */
2617 case nir_instr_type_intrinsic
:
2618 emit_intrinsic(ctx
, nir_instr_as_intrinsic(instr
));
2620 case nir_instr_type_load_const
:
2621 emit_load_const(ctx
, nir_instr_as_load_const(instr
));
2623 case nir_instr_type_ssa_undef
:
2624 emit_undef(ctx
, nir_instr_as_ssa_undef(instr
));
2626 case nir_instr_type_tex
: {
2627 nir_tex_instr
*tex
= nir_instr_as_tex(instr
);
2628 /* couple tex instructions get special-cased:
2632 emit_tex_txs(ctx
, tex
);
2634 case nir_texop_query_levels
:
2635 emit_tex_info(ctx
, tex
, 2);
2637 case nir_texop_texture_samples
:
2638 emit_tex_info(ctx
, tex
, 3);
2646 case nir_instr_type_jump
:
2647 emit_jump(ctx
, nir_instr_as_jump(instr
));
2649 case nir_instr_type_phi
:
2650 /* we have converted phi webs to regs in NIR by now */
2651 ir3_context_error(ctx
, "Unexpected NIR instruction type: %d\n", instr
->type
);
2653 case nir_instr_type_call
:
2654 case nir_instr_type_parallel_copy
:
2655 ir3_context_error(ctx
, "Unhandled NIR instruction type: %d\n", instr
->type
);
2660 static struct ir3_block
*
2661 get_block(struct ir3_context
*ctx
, const nir_block
*nblock
)
2663 struct ir3_block
*block
;
2664 struct hash_entry
*hentry
;
2666 hentry
= _mesa_hash_table_search(ctx
->block_ht
, nblock
);
2668 return hentry
->data
;
2670 block
= ir3_block_create(ctx
->ir
);
2671 block
->nblock
= nblock
;
2672 _mesa_hash_table_insert(ctx
->block_ht
, nblock
, block
);
2674 set_foreach(nblock
->predecessors
, sentry
) {
2675 _mesa_set_add(block
->predecessors
, get_block(ctx
, sentry
->key
));
2682 emit_block(struct ir3_context
*ctx
, nir_block
*nblock
)
2684 struct ir3_block
*block
= get_block(ctx
, nblock
);
2686 for (int i
= 0; i
< ARRAY_SIZE(block
->successors
); i
++) {
2687 if (nblock
->successors
[i
]) {
2688 block
->successors
[i
] =
2689 get_block(ctx
, nblock
->successors
[i
]);
2694 list_addtail(&block
->node
, &ctx
->ir
->block_list
);
2696 /* re-emit addr register in each block if needed: */
2697 for (int i
= 0; i
< ARRAY_SIZE(ctx
->addr0_ht
); i
++) {
2698 _mesa_hash_table_destroy(ctx
->addr0_ht
[i
], NULL
);
2699 ctx
->addr0_ht
[i
] = NULL
;
2702 _mesa_hash_table_u64_destroy(ctx
->addr1_ht
, NULL
);
2703 ctx
->addr1_ht
= NULL
;
2705 nir_foreach_instr (instr
, nblock
) {
2706 ctx
->cur_instr
= instr
;
2707 emit_instr(ctx
, instr
);
2708 ctx
->cur_instr
= NULL
;
2713 _mesa_hash_table_clear(ctx
->sel_cond_conversions
, NULL
);
2716 static void emit_cf_list(struct ir3_context
*ctx
, struct exec_list
*list
);
2719 emit_if(struct ir3_context
*ctx
, nir_if
*nif
)
2721 struct ir3_instruction
*condition
= ir3_get_src(ctx
, &nif
->condition
)[0];
2723 ctx
->block
->condition
= ir3_get_predicate(ctx
, condition
);
2725 emit_cf_list(ctx
, &nif
->then_list
);
2726 emit_cf_list(ctx
, &nif
->else_list
);
2730 emit_loop(struct ir3_context
*ctx
, nir_loop
*nloop
)
2732 emit_cf_list(ctx
, &nloop
->body
);
2737 stack_push(struct ir3_context
*ctx
)
2740 ctx
->max_stack
= MAX2(ctx
->max_stack
, ctx
->stack
);
2744 stack_pop(struct ir3_context
*ctx
)
2746 compile_assert(ctx
, ctx
->stack
> 0);
2751 emit_cf_list(struct ir3_context
*ctx
, struct exec_list
*list
)
2753 foreach_list_typed (nir_cf_node
, node
, node
, list
) {
2754 switch (node
->type
) {
2755 case nir_cf_node_block
:
2756 emit_block(ctx
, nir_cf_node_as_block(node
));
2758 case nir_cf_node_if
:
2760 emit_if(ctx
, nir_cf_node_as_if(node
));
2763 case nir_cf_node_loop
:
2765 emit_loop(ctx
, nir_cf_node_as_loop(node
));
2768 case nir_cf_node_function
:
2769 ir3_context_error(ctx
, "TODO\n");
2775 /* emit stream-out code. At this point, the current block is the original
2776 * (nir) end block, and nir ensures that all flow control paths terminate
2777 * into the end block. We re-purpose the original end block to generate
2778 * the 'if (vtxcnt < maxvtxcnt)' condition, then append the conditional
2779 * block holding stream-out write instructions, followed by the new end
2783 * p0.x = (vtxcnt < maxvtxcnt)
2784 * // succs: blockStreamOut, blockNewEnd
2787 * // preds: blockOrigEnd
2788 * ... stream-out instructions ...
2789 * // succs: blockNewEnd
2792 * // preds: blockOrigEnd, blockStreamOut
2796 emit_stream_out(struct ir3_context
*ctx
)
2798 struct ir3
*ir
= ctx
->ir
;
2799 struct ir3_stream_output_info
*strmout
=
2800 &ctx
->so
->shader
->stream_output
;
2801 struct ir3_block
*orig_end_block
, *stream_out_block
, *new_end_block
;
2802 struct ir3_instruction
*vtxcnt
, *maxvtxcnt
, *cond
;
2803 struct ir3_instruction
*bases
[IR3_MAX_SO_BUFFERS
];
2805 /* create vtxcnt input in input block at top of shader,
2806 * so that it is seen as live over the entire duration
2809 vtxcnt
= create_sysval_input(ctx
, SYSTEM_VALUE_VERTEX_CNT
, 0x1);
2810 maxvtxcnt
= create_driver_param(ctx
, IR3_DP_VTXCNT_MAX
);
2812 /* at this point, we are at the original 'end' block,
2813 * re-purpose this block to stream-out condition, then
2814 * append stream-out block and new-end block
2816 orig_end_block
= ctx
->block
;
2818 // maybe w/ store_global intrinsic, we could do this
2819 // stuff in nir->nir pass
2821 stream_out_block
= ir3_block_create(ir
);
2822 list_addtail(&stream_out_block
->node
, &ir
->block_list
);
2824 new_end_block
= ir3_block_create(ir
);
2825 list_addtail(&new_end_block
->node
, &ir
->block_list
);
2827 orig_end_block
->successors
[0] = stream_out_block
;
2828 orig_end_block
->successors
[1] = new_end_block
;
2830 stream_out_block
->successors
[0] = new_end_block
;
2831 _mesa_set_add(stream_out_block
->predecessors
, orig_end_block
);
2833 _mesa_set_add(new_end_block
->predecessors
, orig_end_block
);
2834 _mesa_set_add(new_end_block
->predecessors
, stream_out_block
);
2836 /* setup 'if (vtxcnt < maxvtxcnt)' condition: */
2837 cond
= ir3_CMPS_S(ctx
->block
, vtxcnt
, 0, maxvtxcnt
, 0);
2838 cond
->regs
[0]->num
= regid(REG_P0
, 0);
2839 cond
->regs
[0]->flags
&= ~IR3_REG_SSA
;
2840 cond
->cat2
.condition
= IR3_COND_LT
;
2842 /* condition goes on previous block to the conditional,
2843 * since it is used to pick which of the two successor
2846 orig_end_block
->condition
= cond
;
2848 /* switch to stream_out_block to generate the stream-out
2851 ctx
->block
= stream_out_block
;
2853 /* Calculate base addresses based on vtxcnt. Instructions
2854 * generated for bases not used in following loop will be
2855 * stripped out in the backend.
2857 for (unsigned i
= 0; i
< IR3_MAX_SO_BUFFERS
; i
++) {
2858 const struct ir3_const_state
*const_state
=
2859 ir3_const_state(ctx
->so
);
2860 unsigned stride
= strmout
->stride
[i
];
2861 struct ir3_instruction
*base
, *off
;
2863 base
= create_uniform(ctx
->block
, regid(const_state
->offsets
.tfbo
, i
));
2865 /* 24-bit should be enough: */
2866 off
= ir3_MUL_U24(ctx
->block
, vtxcnt
, 0,
2867 create_immed(ctx
->block
, stride
* 4), 0);
2869 bases
[i
] = ir3_ADD_S(ctx
->block
, off
, 0, base
, 0);
2872 /* Generate the per-output store instructions: */
2873 for (unsigned i
= 0; i
< strmout
->num_outputs
; i
++) {
2874 for (unsigned j
= 0; j
< strmout
->output
[i
].num_components
; j
++) {
2875 unsigned c
= j
+ strmout
->output
[i
].start_component
;
2876 struct ir3_instruction
*base
, *out
, *stg
;
2878 base
= bases
[strmout
->output
[i
].output_buffer
];
2879 out
= ctx
->outputs
[regid(strmout
->output
[i
].register_index
, c
)];
2881 stg
= ir3_STG(ctx
->block
, base
, 0, out
, 0,
2882 create_immed(ctx
->block
, 1), 0);
2883 stg
->cat6
.type
= TYPE_U32
;
2884 stg
->cat6
.dst_offset
= (strmout
->output
[i
].dst_offset
+ j
) * 4;
2886 array_insert(ctx
->block
, ctx
->block
->keeps
, stg
);
2890 /* and finally switch to the new_end_block: */
2891 ctx
->block
= new_end_block
;
2895 emit_function(struct ir3_context
*ctx
, nir_function_impl
*impl
)
2897 nir_metadata_require(impl
, nir_metadata_block_index
);
2899 compile_assert(ctx
, ctx
->stack
== 0);
2901 emit_cf_list(ctx
, &impl
->body
);
2902 emit_block(ctx
, impl
->end_block
);
2904 compile_assert(ctx
, ctx
->stack
== 0);
2906 /* at this point, we should have a single empty block,
2907 * into which we emit the 'end' instruction.
2909 compile_assert(ctx
, list_is_empty(&ctx
->block
->instr_list
));
2911 /* If stream-out (aka transform-feedback) enabled, emit the
2912 * stream-out instructions, followed by a new empty block (into
2913 * which the 'end' instruction lands).
2915 * NOTE: it is done in this order, rather than inserting before
2916 * we emit end_block, because NIR guarantees that all blocks
2917 * flow into end_block, and that end_block has no successors.
2918 * So by re-purposing end_block as the first block of stream-
2919 * out, we guarantee that all exit paths flow into the stream-
2922 if ((ctx
->compiler
->gpu_id
< 500) &&
2923 (ctx
->so
->shader
->stream_output
.num_outputs
> 0) &&
2924 !ctx
->so
->binning_pass
) {
2925 debug_assert(ctx
->so
->type
== MESA_SHADER_VERTEX
);
2926 emit_stream_out(ctx
);
2929 /* Vertex shaders in a tessellation or geometry pipeline treat END as a
2930 * NOP and has an epilogue that writes the VS outputs to local storage, to
2931 * be read by the HS. Then it resets execution mask (chmask) and chains
2932 * to the next shader (chsh).
2934 if ((ctx
->so
->type
== MESA_SHADER_VERTEX
&&
2935 (ctx
->so
->key
.has_gs
|| ctx
->so
->key
.tessellation
)) ||
2936 (ctx
->so
->type
== MESA_SHADER_TESS_EVAL
&& ctx
->so
->key
.has_gs
)) {
2937 struct ir3_instruction
*chmask
=
2938 ir3_CHMASK(ctx
->block
);
2939 chmask
->barrier_class
= IR3_BARRIER_EVERYTHING
;
2940 chmask
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
2942 struct ir3_instruction
*chsh
=
2943 ir3_CHSH(ctx
->block
);
2944 chsh
->barrier_class
= IR3_BARRIER_EVERYTHING
;
2945 chsh
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
2947 ir3_END(ctx
->block
);
2952 setup_input(struct ir3_context
*ctx
, nir_variable
*in
)
2954 struct ir3_shader_variant
*so
= ctx
->so
;
2955 unsigned ncomp
= glsl_get_components(in
->type
);
2956 unsigned n
= in
->data
.driver_location
;
2957 unsigned frac
= in
->data
.location_frac
;
2958 unsigned slot
= in
->data
.location
;
2960 /* Inputs are loaded using ldlw or ldg for these stages. */
2961 if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
||
2962 ctx
->so
->type
== MESA_SHADER_TESS_EVAL
||
2963 ctx
->so
->type
== MESA_SHADER_GEOMETRY
)
2966 /* skip unread inputs, we could end up with (for example), unsplit
2967 * matrix/etc inputs in the case they are not read, so just silently
2973 so
->inputs
[n
].slot
= slot
;
2974 so
->inputs
[n
].compmask
|= (1 << (ncomp
+ frac
)) - 1;
2975 so
->inputs_count
= MAX2(so
->inputs_count
, n
+ 1);
2976 so
->inputs
[n
].interpolate
= in
->data
.interpolation
;
2978 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
2980 /* if any varyings have 'sample' qualifer, that triggers us
2981 * to run in per-sample mode:
2983 so
->per_samp
|= in
->data
.sample
;
2985 for (int i
= 0; i
< ncomp
; i
++) {
2986 struct ir3_instruction
*instr
= NULL
;
2987 unsigned idx
= (n
* 4) + i
+ frac
;
2989 if (slot
== VARYING_SLOT_POS
) {
2990 ir3_context_error(ctx
, "fragcoord should be a sysval!\n");
2992 /* detect the special case for front/back colors where
2993 * we need to do flat vs smooth shading depending on
2996 if (in
->data
.interpolation
== INTERP_MODE_NONE
) {
2998 case VARYING_SLOT_COL0
:
2999 case VARYING_SLOT_COL1
:
3000 case VARYING_SLOT_BFC0
:
3001 case VARYING_SLOT_BFC1
:
3002 so
->inputs
[n
].rasterflat
= true;
3009 if (ctx
->compiler
->flat_bypass
) {
3010 if ((so
->inputs
[n
].interpolate
== INTERP_MODE_FLAT
) ||
3011 (so
->inputs
[n
].rasterflat
&& ctx
->so
->key
.rasterflat
))
3012 so
->inputs
[n
].use_ldlv
= true;
3015 so
->inputs
[n
].bary
= true;
3017 instr
= create_frag_input(ctx
, so
->inputs
[n
].use_ldlv
, idx
);
3020 compile_assert(ctx
, idx
< ctx
->ninputs
);
3022 ctx
->inputs
[idx
] = instr
;
3024 } else if (ctx
->so
->type
== MESA_SHADER_VERTEX
) {
3025 struct ir3_instruction
*input
= NULL
;
3026 struct ir3_instruction
*components
[4];
3027 /* input as setup as frac=0 with "ncomp + frac" components,
3028 * this avoids getting a sparse writemask
3030 unsigned mask
= (1 << (ncomp
+ frac
)) - 1;
3032 foreach_input (in
, ctx
->ir
) {
3033 if (in
->input
.inidx
== n
) {
3040 input
= create_input(ctx
, mask
);
3041 input
->input
.inidx
= n
;
3043 /* For aliased inputs, just append to the wrmask.. ie. if we
3044 * first see a vec2 index at slot N, and then later a vec4,
3045 * the wrmask of the resulting overlapped vec2 and vec4 is 0xf
3047 * If the new input that aliases a previously processed input
3048 * sets no new bits, then just bail as there is nothing to see
3051 if (!(mask
& ~input
->regs
[0]->wrmask
))
3053 input
->regs
[0]->wrmask
|= mask
;
3056 ir3_split_dest(ctx
->block
, components
, input
, 0, ncomp
+ frac
);
3058 for (int i
= 0; i
< ncomp
+ frac
; i
++) {
3059 unsigned idx
= (n
* 4) + i
;
3060 compile_assert(ctx
, idx
< ctx
->ninputs
);
3062 /* With aliased inputs, since we add to the wrmask above, we
3063 * can end up with stale meta:split instructions in the inputs
3064 * table. This is basically harmless, since eventually they
3065 * will get swept away by DCE, but the mismatch wrmask (since
3066 * they would be using the previous wrmask before we OR'd in
3067 * more bits) angers ir3_validate. So just preemptively clean
3070 * dEQP-GLES2.functional.attribute_location.bind_aliasing.cond_vec2
3072 * Note however that split_dest() will return the src if it is
3073 * scalar, so the previous ctx->inputs[idx] could be the input
3074 * itself (which we don't want to remove)
3076 if (ctx
->inputs
[idx
] && (ctx
->inputs
[idx
] != input
)) {
3077 list_del(&ctx
->inputs
[idx
]->node
);
3080 ctx
->inputs
[idx
] = components
[i
];
3083 ir3_context_error(ctx
, "unknown shader type: %d\n", ctx
->so
->type
);
3086 /* note: this can be wrong for sparse vertex inputs, this happens with
3087 * vulkan, only a3xx/a4xx use this value for VS, so it shouldn't matter
3089 if (so
->inputs
[n
].bary
|| (ctx
->so
->type
== MESA_SHADER_VERTEX
)) {
3090 so
->total_in
+= ncomp
;
3094 /* Initially we assign non-packed inloc's for varyings, as we don't really
3095 * know up-front which components will be unused. After all the compilation
3096 * stages we scan the shader to see which components are actually used, and
3097 * re-pack the inlocs to eliminate unneeded varyings.
3100 pack_inlocs(struct ir3_context
*ctx
)
3102 struct ir3_shader_variant
*so
= ctx
->so
;
3103 uint8_t used_components
[so
->inputs_count
];
3105 memset(used_components
, 0, sizeof(used_components
));
3108 * First Step: scan shader to find which bary.f/ldlv remain:
3111 foreach_block (block
, &ctx
->ir
->block_list
) {
3112 foreach_instr (instr
, &block
->instr_list
) {
3113 if (is_input(instr
)) {
3114 unsigned inloc
= instr
->regs
[1]->iim_val
;
3115 unsigned i
= inloc
/ 4;
3116 unsigned j
= inloc
% 4;
3118 compile_assert(ctx
, instr
->regs
[1]->flags
& IR3_REG_IMMED
);
3119 compile_assert(ctx
, i
< so
->inputs_count
);
3121 used_components
[i
] |= 1 << j
;
3122 } else if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3123 for (int n
= 0; n
< 2; n
++) {
3124 unsigned inloc
= instr
->prefetch
.input_offset
+ n
;
3125 unsigned i
= inloc
/ 4;
3126 unsigned j
= inloc
% 4;
3128 compile_assert(ctx
, i
< so
->inputs_count
);
3130 used_components
[i
] |= 1 << j
;
3137 * Second Step: reassign varying inloc/slots:
3140 unsigned actual_in
= 0;
3143 for (unsigned i
= 0; i
< so
->inputs_count
; i
++) {
3144 unsigned compmask
= 0, maxcomp
= 0;
3146 so
->inputs
[i
].inloc
= inloc
;
3147 so
->inputs
[i
].bary
= false;
3149 for (unsigned j
= 0; j
< 4; j
++) {
3150 if (!(used_components
[i
] & (1 << j
)))
3153 compmask
|= (1 << j
);
3157 /* at this point, since used_components[i] mask is only
3158 * considering varyings (ie. not sysvals) we know this
3161 so
->inputs
[i
].bary
= true;
3164 if (so
->inputs
[i
].bary
) {
3166 so
->inputs
[i
].compmask
= (1 << maxcomp
) - 1;
3172 * Third Step: reassign packed inloc's:
3175 foreach_block (block
, &ctx
->ir
->block_list
) {
3176 foreach_instr (instr
, &block
->instr_list
) {
3177 if (is_input(instr
)) {
3178 unsigned inloc
= instr
->regs
[1]->iim_val
;
3179 unsigned i
= inloc
/ 4;
3180 unsigned j
= inloc
% 4;
3182 instr
->regs
[1]->iim_val
= so
->inputs
[i
].inloc
+ j
;
3183 } else if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3184 unsigned i
= instr
->prefetch
.input_offset
/ 4;
3185 unsigned j
= instr
->prefetch
.input_offset
% 4;
3186 instr
->prefetch
.input_offset
= so
->inputs
[i
].inloc
+ j
;
3193 setup_output(struct ir3_context
*ctx
, nir_variable
*out
)
3195 struct ir3_shader_variant
*so
= ctx
->so
;
3196 unsigned slots
= glsl_count_vec4_slots(out
->type
, false, false);
3197 unsigned ncomp
= glsl_get_components(glsl_without_array(out
->type
));
3198 unsigned n
= out
->data
.driver_location
;
3199 unsigned frac
= out
->data
.location_frac
;
3200 unsigned slot
= out
->data
.location
;
3202 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
3204 case FRAG_RESULT_DEPTH
:
3205 so
->writes_pos
= true;
3207 case FRAG_RESULT_COLOR
:
3210 case FRAG_RESULT_SAMPLE_MASK
:
3211 so
->writes_smask
= true;
3213 case FRAG_RESULT_STENCIL
:
3214 so
->writes_stencilref
= true;
3217 slot
+= out
->data
.index
; /* For dual-src blend */
3218 if (slot
>= FRAG_RESULT_DATA0
)
3220 ir3_context_error(ctx
, "unknown FS output name: %s\n",
3221 gl_frag_result_name(slot
));
3223 } else if (ctx
->so
->type
== MESA_SHADER_VERTEX
||
3224 ctx
->so
->type
== MESA_SHADER_TESS_EVAL
||
3225 ctx
->so
->type
== MESA_SHADER_GEOMETRY
) {
3227 case VARYING_SLOT_POS
:
3228 so
->writes_pos
= true;
3230 case VARYING_SLOT_PSIZ
:
3231 so
->writes_psize
= true;
3233 case VARYING_SLOT_PRIMITIVE_ID
:
3234 case VARYING_SLOT_LAYER
:
3235 case VARYING_SLOT_GS_VERTEX_FLAGS_IR3
:
3236 debug_assert(ctx
->so
->type
== MESA_SHADER_GEOMETRY
);
3238 case VARYING_SLOT_COL0
:
3239 case VARYING_SLOT_COL1
:
3240 case VARYING_SLOT_BFC0
:
3241 case VARYING_SLOT_BFC1
:
3242 case VARYING_SLOT_FOGC
:
3243 case VARYING_SLOT_CLIP_DIST0
:
3244 case VARYING_SLOT_CLIP_DIST1
:
3245 case VARYING_SLOT_CLIP_VERTEX
:
3248 if (slot
>= VARYING_SLOT_VAR0
)
3250 if ((VARYING_SLOT_TEX0
<= slot
) && (slot
<= VARYING_SLOT_TEX7
))
3252 ir3_context_error(ctx
, "unknown %s shader output name: %s\n",
3253 _mesa_shader_stage_to_string(ctx
->so
->type
),
3254 gl_varying_slot_name(slot
));
3256 } else if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
) {
3257 /* output lowered to buffer writes. */
3260 ir3_context_error(ctx
, "unknown shader type: %d\n", ctx
->so
->type
);
3264 so
->outputs_count
= out
->data
.driver_location
+ slots
;
3265 compile_assert(ctx
, so
->outputs_count
< ARRAY_SIZE(so
->outputs
));
3267 for (int i
= 0; i
< slots
; i
++) {
3268 int slot_base
= n
+ i
;
3269 so
->outputs
[slot_base
].slot
= slot
+ i
;
3271 for (int i
= 0; i
< ncomp
; i
++) {
3272 unsigned idx
= (slot_base
* 4) + i
+ frac
;
3273 compile_assert(ctx
, idx
< ctx
->noutputs
);
3274 ctx
->outputs
[idx
] = create_immed(ctx
->block
, fui(0.0));
3277 /* if varying packing doesn't happen, we could end up in a situation
3278 * with "holes" in the output, and since the per-generation code that
3279 * sets up varying linkage registers doesn't expect to have more than
3280 * one varying per vec4 slot, pad the holes.
3282 * Note that this should probably generate a performance warning of
3285 for (int i
= 0; i
< frac
; i
++) {
3286 unsigned idx
= (slot_base
* 4) + i
;
3287 if (!ctx
->outputs
[idx
]) {
3288 ctx
->outputs
[idx
] = create_immed(ctx
->block
, fui(0.0));
3295 emit_instructions(struct ir3_context
*ctx
)
3297 nir_function_impl
*fxn
= nir_shader_get_entrypoint(ctx
->s
);
3299 ctx
->ninputs
= ctx
->s
->num_inputs
* 4;
3300 ctx
->noutputs
= ctx
->s
->num_outputs
* 4;
3301 ctx
->inputs
= rzalloc_array(ctx
, struct ir3_instruction
*, ctx
->ninputs
);
3302 ctx
->outputs
= rzalloc_array(ctx
, struct ir3_instruction
*, ctx
->noutputs
);
3304 ctx
->ir
= ir3_create(ctx
->compiler
, ctx
->so
);
3306 /* Create inputs in first block: */
3307 ctx
->block
= get_block(ctx
, nir_start_block(fxn
));
3308 ctx
->in_block
= ctx
->block
;
3310 /* for fragment shader, the vcoord input register is used as the
3311 * base for bary.f varying fetch instrs:
3313 * TODO defer creating ctx->ij_pixel and corresponding sysvals
3314 * until emit_intrinsic when we know they are actually needed.
3315 * For now, we defer creating ctx->ij_centroid, etc, since we
3316 * only need ij_pixel for "old style" varying inputs (ie.
3319 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
3320 ctx
->ij
[IJ_PERSP_PIXEL
] = create_input(ctx
, 0x3);
3324 nir_foreach_shader_in_variable (var
, ctx
->s
) {
3325 setup_input(ctx
, var
);
3328 /* Defer add_sysval_input() stuff until after setup_inputs(),
3329 * because sysvals need to be appended after varyings:
3331 if (ctx
->ij
[IJ_PERSP_PIXEL
]) {
3332 add_sysval_input_compmask(ctx
, SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
,
3333 0x3, ctx
->ij
[IJ_PERSP_PIXEL
]);
3337 /* Tesselation shaders always need primitive ID for indexing the
3338 * BO. Geometry shaders don't always need it but when they do it has be
3339 * delivered and unclobbered in the VS. To make things easy, we always
3340 * make room for it in VS/DS.
3342 bool has_tess
= ctx
->so
->key
.tessellation
!= IR3_TESS_NONE
;
3343 bool has_gs
= ctx
->so
->key
.has_gs
;
3344 switch (ctx
->so
->type
) {
3345 case MESA_SHADER_VERTEX
:
3347 ctx
->tcs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_TCS_HEADER_IR3
, 0x1);
3348 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3349 } else if (has_gs
) {
3350 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3351 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3354 case MESA_SHADER_TESS_CTRL
:
3355 ctx
->tcs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_TCS_HEADER_IR3
, 0x1);
3356 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3358 case MESA_SHADER_TESS_EVAL
:
3360 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3361 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3363 case MESA_SHADER_GEOMETRY
:
3364 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3365 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3371 /* Setup outputs: */
3372 nir_foreach_shader_out_variable (var
, ctx
->s
) {
3373 setup_output(ctx
, var
);
3376 /* Find # of samplers. Just assume that we'll be reading from images.. if
3377 * it is write-only we don't have to count it, but after lowering derefs
3378 * is too late to compact indices for that.
3380 ctx
->so
->num_samp
= util_last_bit(ctx
->s
->info
.textures_used
) + ctx
->s
->info
.num_images
;
3382 /* NOTE: need to do something more clever when we support >1 fxn */
3383 nir_foreach_register (reg
, &fxn
->registers
) {
3384 ir3_declare_array(ctx
, reg
);
3386 /* And emit the body: */
3388 emit_function(ctx
, fxn
);
3391 /* Fixup tex sampler state for astc/srgb workaround instructions. We
3392 * need to assign the tex state indexes for these after we know the
3396 fixup_astc_srgb(struct ir3_context
*ctx
)
3398 struct ir3_shader_variant
*so
= ctx
->so
;
3399 /* indexed by original tex idx, value is newly assigned alpha sampler
3400 * state tex idx. Zero is invalid since there is at least one sampler
3403 unsigned alt_tex_state
[16] = {0};
3404 unsigned tex_idx
= ctx
->max_texture_index
+ 1;
3407 so
->astc_srgb
.base
= tex_idx
;
3409 for (unsigned i
= 0; i
< ctx
->ir
->astc_srgb_count
; i
++) {
3410 struct ir3_instruction
*sam
= ctx
->ir
->astc_srgb
[i
];
3412 compile_assert(ctx
, sam
->cat5
.tex
< ARRAY_SIZE(alt_tex_state
));
3414 if (alt_tex_state
[sam
->cat5
.tex
] == 0) {
3415 /* assign new alternate/alpha tex state slot: */
3416 alt_tex_state
[sam
->cat5
.tex
] = tex_idx
++;
3417 so
->astc_srgb
.orig_idx
[idx
++] = sam
->cat5
.tex
;
3418 so
->astc_srgb
.count
++;
3421 sam
->cat5
.tex
= alt_tex_state
[sam
->cat5
.tex
];
3426 fixup_binning_pass(struct ir3_context
*ctx
)
3428 struct ir3_shader_variant
*so
= ctx
->so
;
3429 struct ir3
*ir
= ctx
->ir
;
3432 /* first pass, remove unused outputs from the IR level outputs: */
3433 for (i
= 0, j
= 0; i
< ir
->outputs_count
; i
++) {
3434 struct ir3_instruction
*out
= ir
->outputs
[i
];
3435 assert(out
->opc
== OPC_META_COLLECT
);
3436 unsigned outidx
= out
->collect
.outidx
;
3437 unsigned slot
= so
->outputs
[outidx
].slot
;
3439 /* throw away everything but first position/psize */
3440 if ((slot
== VARYING_SLOT_POS
) || (slot
== VARYING_SLOT_PSIZ
)) {
3441 ir
->outputs
[j
] = ir
->outputs
[i
];
3445 ir
->outputs_count
= j
;
3447 /* second pass, cleanup the unused slots in ir3_shader_variant::outputs
3450 for (i
= 0, j
= 0; i
< so
->outputs_count
; i
++) {
3451 unsigned slot
= so
->outputs
[i
].slot
;
3453 /* throw away everything but first position/psize */
3454 if ((slot
== VARYING_SLOT_POS
) || (slot
== VARYING_SLOT_PSIZ
)) {
3455 so
->outputs
[j
] = so
->outputs
[i
];
3457 /* fixup outidx to point to new output table entry: */
3458 foreach_output (out
, ir
) {
3459 if (out
->collect
.outidx
== i
) {
3460 out
->collect
.outidx
= j
;
3468 so
->outputs_count
= j
;
3472 collect_tex_prefetches(struct ir3_context
*ctx
, struct ir3
*ir
)
3476 /* Collect sampling instructions eligible for pre-dispatch. */
3477 foreach_block (block
, &ir
->block_list
) {
3478 foreach_instr_safe (instr
, &block
->instr_list
) {
3479 if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3480 assert(idx
< ARRAY_SIZE(ctx
->so
->sampler_prefetch
));
3481 struct ir3_sampler_prefetch
*fetch
=
3482 &ctx
->so
->sampler_prefetch
[idx
];
3485 if (instr
->flags
& IR3_INSTR_B
) {
3486 fetch
->cmd
= IR3_SAMPLER_BINDLESS_PREFETCH_CMD
;
3487 /* In bindless mode, the index is actually the base */
3488 fetch
->tex_id
= instr
->prefetch
.tex_base
;
3489 fetch
->samp_id
= instr
->prefetch
.samp_base
;
3490 fetch
->tex_bindless_id
= instr
->prefetch
.tex
;
3491 fetch
->samp_bindless_id
= instr
->prefetch
.samp
;
3493 fetch
->cmd
= IR3_SAMPLER_PREFETCH_CMD
;
3494 fetch
->tex_id
= instr
->prefetch
.tex
;
3495 fetch
->samp_id
= instr
->prefetch
.samp
;
3497 fetch
->wrmask
= instr
->regs
[0]->wrmask
;
3498 fetch
->dst
= instr
->regs
[0]->num
;
3499 fetch
->src
= instr
->prefetch
.input_offset
;
3501 /* These are the limits on a5xx/a6xx, we might need to
3502 * revisit if SP_FS_PREFETCH[n] changes on later gens:
3504 assert(fetch
->dst
<= 0x3f);
3505 assert(fetch
->tex_id
<= 0x1f);
3506 assert(fetch
->samp_id
< 0xf);
3509 MAX2(ctx
->so
->total_in
, instr
->prefetch
.input_offset
+ 2);
3511 fetch
->half_precision
= !!(instr
->regs
[0]->flags
& IR3_REG_HALF
);
3513 /* Remove the prefetch placeholder instruction: */
3514 list_delinit(&instr
->node
);
3521 ir3_compile_shader_nir(struct ir3_compiler
*compiler
,
3522 struct ir3_shader_variant
*so
)
3524 struct ir3_context
*ctx
;
3526 int ret
= 0, max_bary
;
3531 ctx
= ir3_context_init(compiler
, so
);
3533 DBG("INIT failed!");
3538 emit_instructions(ctx
);
3541 DBG("EMIT failed!");
3546 ir
= so
->ir
= ctx
->ir
;
3548 assert((ctx
->noutputs
% 4) == 0);
3550 /* Setup IR level outputs, which are "collects" that gather
3551 * the scalar components of outputs.
3553 for (unsigned i
= 0; i
< ctx
->noutputs
; i
+= 4) {
3555 /* figure out the # of components written:
3557 * TODO do we need to handle holes, ie. if .x and .z
3558 * components written, but .y component not written?
3560 for (unsigned j
= 0; j
< 4; j
++) {
3561 if (!ctx
->outputs
[i
+ j
])
3566 /* Note that in some stages, like TCS, store_output is
3567 * lowered to memory writes, so no components of the
3568 * are "written" from the PoV of traditional store-
3569 * output instructions:
3574 struct ir3_instruction
*out
=
3575 ir3_create_collect(ctx
, &ctx
->outputs
[i
], ncomp
);
3578 assert(outidx
< so
->outputs_count
);
3580 /* stash index into so->outputs[] so we can map the
3581 * output back to slot/etc later:
3583 out
->collect
.outidx
= outidx
;
3585 array_insert(ir
, ir
->outputs
, out
);
3588 /* Set up the gs header as an output for the vertex shader so it won't
3589 * clobber it for the tess ctrl shader.
3591 * TODO this could probably be done more cleanly in a nir pass.
3593 if (ctx
->so
->type
== MESA_SHADER_VERTEX
||
3594 (ctx
->so
->key
.has_gs
&& ctx
->so
->type
== MESA_SHADER_TESS_EVAL
)) {
3595 if (ctx
->primitive_id
) {
3596 unsigned n
= so
->outputs_count
++;
3597 so
->outputs
[n
].slot
= VARYING_SLOT_PRIMITIVE_ID
;
3599 struct ir3_instruction
*out
=
3600 ir3_create_collect(ctx
, &ctx
->primitive_id
, 1);
3601 out
->collect
.outidx
= n
;
3602 array_insert(ir
, ir
->outputs
, out
);
3605 if (ctx
->gs_header
) {
3606 unsigned n
= so
->outputs_count
++;
3607 so
->outputs
[n
].slot
= VARYING_SLOT_GS_HEADER_IR3
;
3608 struct ir3_instruction
*out
=
3609 ir3_create_collect(ctx
, &ctx
->gs_header
, 1);
3610 out
->collect
.outidx
= n
;
3611 array_insert(ir
, ir
->outputs
, out
);
3614 if (ctx
->tcs_header
) {
3615 unsigned n
= so
->outputs_count
++;
3616 so
->outputs
[n
].slot
= VARYING_SLOT_TCS_HEADER_IR3
;
3617 struct ir3_instruction
*out
=
3618 ir3_create_collect(ctx
, &ctx
->tcs_header
, 1);
3619 out
->collect
.outidx
= n
;
3620 array_insert(ir
, ir
->outputs
, out
);
3624 /* for a6xx+, binning and draw pass VS use same VBO state, so we
3625 * need to make sure not to remove any inputs that are used by
3626 * the nonbinning VS.
3628 if (ctx
->compiler
->gpu_id
>= 600 && so
->binning_pass
&&
3629 so
->type
== MESA_SHADER_VERTEX
) {
3630 for (int i
= 0; i
< ctx
->ninputs
; i
++) {
3631 struct ir3_instruction
*in
= ctx
->inputs
[i
];
3639 debug_assert(n
< so
->nonbinning
->inputs_count
);
3641 if (so
->nonbinning
->inputs
[n
].sysval
)
3644 /* be sure to keep inputs, even if only used in VS */
3645 if (so
->nonbinning
->inputs
[n
].compmask
& (1 << c
))
3646 array_insert(in
->block
, in
->block
->keeps
, in
);
3650 /* at this point, for binning pass, throw away unneeded outputs: */
3651 if (so
->binning_pass
&& (ctx
->compiler
->gpu_id
< 600))
3652 fixup_binning_pass(ctx
);
3654 ir3_debug_print(ir
, "AFTER: nir->ir3");
3660 progress
|= IR3_PASS(ir
, ir3_cf
);
3661 progress
|= IR3_PASS(ir
, ir3_cp
, so
);
3662 progress
|= IR3_PASS(ir
, ir3_dce
, so
);
3665 /* at this point, for binning pass, throw away unneeded outputs:
3666 * Note that for a6xx and later, we do this after ir3_cp to ensure
3667 * that the uniform/constant layout for BS and VS matches, so that
3668 * we can re-use same VS_CONST state group.
3670 if (so
->binning_pass
&& (ctx
->compiler
->gpu_id
>= 600)) {
3671 fixup_binning_pass(ctx
);
3672 /* cleanup the result of removing unneeded outputs: */
3673 while (IR3_PASS(ir
, ir3_dce
, so
)) {}
3676 IR3_PASS(ir
, ir3_sched_add_deps
);
3678 /* Group left/right neighbors, inserting mov's where needed to
3681 IR3_PASS(ir
, ir3_group
);
3683 /* At this point, all the dead code should be long gone: */
3684 assert(!IR3_PASS(ir
, ir3_dce
, so
));
3686 ret
= ir3_sched(ir
);
3688 DBG("SCHED failed!");
3692 ir3_debug_print(ir
, "AFTER: ir3_sched");
3694 if (IR3_PASS(ir
, ir3_cp_postsched
)) {
3695 /* cleanup the result of removing unneeded mov's: */
3696 while (IR3_PASS(ir
, ir3_dce
, so
)) {}
3699 /* Pre-assign VS inputs on a6xx+ binning pass shader, to align
3700 * with draw pass VS, so binning and draw pass can both use the
3703 * Note that VS inputs are expected to be full precision.
3705 bool pre_assign_inputs
= (ir
->compiler
->gpu_id
>= 600) &&
3706 (ir
->type
== MESA_SHADER_VERTEX
) &&
3709 if (pre_assign_inputs
) {
3710 for (unsigned i
= 0; i
< ctx
->ninputs
; i
++) {
3711 struct ir3_instruction
*instr
= ctx
->inputs
[i
];
3718 unsigned regid
= so
->nonbinning
->inputs
[n
].regid
+ c
;
3720 instr
->regs
[0]->num
= regid
;
3723 ret
= ir3_ra(so
, ctx
->inputs
, ctx
->ninputs
);
3724 } else if (ctx
->tcs_header
) {
3725 /* We need to have these values in the same registers between VS and TCS
3726 * since the VS chains to TCS and doesn't get the sysvals redelivered.
3729 ctx
->tcs_header
->regs
[0]->num
= regid(0, 0);
3730 ctx
->primitive_id
->regs
[0]->num
= regid(0, 1);
3731 struct ir3_instruction
*precolor
[] = { ctx
->tcs_header
, ctx
->primitive_id
};
3732 ret
= ir3_ra(so
, precolor
, ARRAY_SIZE(precolor
));
3733 } else if (ctx
->gs_header
) {
3734 /* We need to have these values in the same registers between producer
3735 * (VS or DS) and GS since the producer chains to GS and doesn't get
3736 * the sysvals redelivered.
3739 ctx
->gs_header
->regs
[0]->num
= regid(0, 0);
3740 ctx
->primitive_id
->regs
[0]->num
= regid(0, 1);
3741 struct ir3_instruction
*precolor
[] = { ctx
->gs_header
, ctx
->primitive_id
};
3742 ret
= ir3_ra(so
, precolor
, ARRAY_SIZE(precolor
));
3743 } else if (so
->num_sampler_prefetch
) {
3744 assert(so
->type
== MESA_SHADER_FRAGMENT
);
3745 struct ir3_instruction
*precolor
[2];
3748 foreach_input (instr
, ir
) {
3749 if (instr
->input
.sysval
!= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
)
3752 assert(idx
< ARRAY_SIZE(precolor
));
3754 precolor
[idx
] = instr
;
3755 instr
->regs
[0]->num
= idx
;
3759 ret
= ir3_ra(so
, precolor
, idx
);
3761 ret
= ir3_ra(so
, NULL
, 0);
3769 IR3_PASS(ir
, ir3_postsched
, so
);
3771 if (compiler
->gpu_id
>= 600) {
3772 IR3_PASS(ir
, ir3_a6xx_fixup_atomic_dests
, so
);
3775 if (so
->type
== MESA_SHADER_FRAGMENT
)
3779 * Fixup inputs/outputs to point to the actual registers assigned:
3781 * 1) initialize to r63.x (invalid/unused)
3782 * 2) iterate IR level inputs/outputs and update the variants
3783 * inputs/outputs table based on the assigned registers for
3784 * the remaining inputs/outputs.
3787 for (unsigned i
= 0; i
< so
->inputs_count
; i
++)
3788 so
->inputs
[i
].regid
= INVALID_REG
;
3789 for (unsigned i
= 0; i
< so
->outputs_count
; i
++)
3790 so
->outputs
[i
].regid
= INVALID_REG
;
3792 foreach_output (out
, ir
) {
3793 assert(out
->opc
== OPC_META_COLLECT
);
3794 unsigned outidx
= out
->collect
.outidx
;
3796 so
->outputs
[outidx
].regid
= out
->regs
[0]->num
;
3797 so
->outputs
[outidx
].half
= !!(out
->regs
[0]->flags
& IR3_REG_HALF
);
3800 foreach_input (in
, ir
) {
3801 assert(in
->opc
== OPC_META_INPUT
);
3802 unsigned inidx
= in
->input
.inidx
;
3804 if (pre_assign_inputs
&& !so
->inputs
[inidx
].sysval
) {
3805 if (VALIDREG(so
->nonbinning
->inputs
[inidx
].regid
)) {
3806 compile_assert(ctx
, in
->regs
[0]->num
==
3807 so
->nonbinning
->inputs
[inidx
].regid
);
3808 compile_assert(ctx
, !!(in
->regs
[0]->flags
& IR3_REG_HALF
) ==
3809 so
->nonbinning
->inputs
[inidx
].half
);
3811 so
->inputs
[inidx
].regid
= so
->nonbinning
->inputs
[inidx
].regid
;
3812 so
->inputs
[inidx
].half
= so
->nonbinning
->inputs
[inidx
].half
;
3814 so
->inputs
[inidx
].regid
= in
->regs
[0]->num
;
3815 so
->inputs
[inidx
].half
= !!(in
->regs
[0]->flags
& IR3_REG_HALF
);
3820 fixup_astc_srgb(ctx
);
3822 /* We need to do legalize after (for frag shader's) the "bary.f"
3823 * offsets (inloc) have been assigned.
3825 IR3_PASS(ir
, ir3_legalize
, so
, &max_bary
);
3827 /* Set (ss)(sy) on first TCS and GEOMETRY instructions, since we don't
3828 * know what we might have to wait on when coming in from VS chsh.
3830 if (so
->type
== MESA_SHADER_TESS_CTRL
||
3831 so
->type
== MESA_SHADER_GEOMETRY
) {
3832 foreach_block (block
, &ir
->block_list
) {
3833 foreach_instr (instr
, &block
->instr_list
) {
3834 instr
->flags
|= IR3_INSTR_SS
| IR3_INSTR_SY
;
3840 so
->branchstack
= ctx
->max_stack
;
3842 /* Note that actual_in counts inputs that are not bary.f'd for FS: */
3843 if (so
->type
== MESA_SHADER_FRAGMENT
)
3844 so
->total_in
= max_bary
+ 1;
3846 /* Collect sampling instructions eligible for pre-dispatch. */
3847 collect_tex_prefetches(ctx
, ir
);
3849 if (so
->type
== MESA_SHADER_FRAGMENT
&&
3850 ctx
->s
->info
.fs
.needs_helper_invocations
)
3851 so
->need_pixlod
= true;
3856 ir3_destroy(so
->ir
);
3859 ir3_context_free(ctx
);