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_indirect_load(struct ir3_context
*ctx
, unsigned arrsz
, int n
,
55 struct ir3_instruction
*address
, struct ir3_instruction
*collect
)
57 struct ir3_block
*block
= ctx
->block
;
58 struct ir3_instruction
*mov
;
59 struct ir3_register
*src
;
61 mov
= ir3_instr_create(block
, OPC_MOV
);
62 mov
->cat1
.src_type
= TYPE_U32
;
63 mov
->cat1
.dst_type
= TYPE_U32
;
65 src
= __ssa_src(mov
, collect
, IR3_REG_RELATIV
);
67 src
->array
.offset
= n
;
69 ir3_instr_set_address(mov
, address
);
74 static struct ir3_instruction
*
75 create_input(struct ir3_context
*ctx
, unsigned compmask
)
77 struct ir3_instruction
*in
;
79 in
= ir3_instr_create(ctx
->in_block
, OPC_META_INPUT
);
80 in
->input
.sysval
= ~0;
81 __ssa_dst(in
)->wrmask
= compmask
;
83 array_insert(ctx
->ir
, ctx
->ir
->inputs
, in
);
88 static struct ir3_instruction
*
89 create_frag_input(struct ir3_context
*ctx
, bool use_ldlv
, unsigned n
)
91 struct ir3_block
*block
= ctx
->block
;
92 struct ir3_instruction
*instr
;
93 /* packed inloc is fixed up later: */
94 struct ir3_instruction
*inloc
= create_immed(block
, n
);
97 instr
= ir3_LDLV(block
, inloc
, 0, create_immed(block
, 1), 0);
98 instr
->cat6
.type
= TYPE_U32
;
99 instr
->cat6
.iim_val
= 1;
101 instr
= ir3_BARY_F(block
, inloc
, 0, ctx
->ij
[IJ_PERSP_PIXEL
], 0);
102 instr
->regs
[2]->wrmask
= 0x3;
108 static struct ir3_instruction
*
109 create_driver_param(struct ir3_context
*ctx
, enum ir3_driver_param dp
)
111 /* first four vec4 sysval's reserved for UBOs: */
112 /* NOTE: dp is in scalar, but there can be >4 dp components: */
113 struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
114 unsigned n
= const_state
->offsets
.driver_param
;
115 unsigned r
= regid(n
+ dp
/ 4, dp
% 4);
116 return create_uniform(ctx
->block
, r
);
120 * Adreno's comparisons produce a 1 for true and 0 for false, in either 16 or
121 * 32-bit registers. We use NIR's 1-bit integers to represent bools, and
122 * trust that we will only see and/or/xor on those 1-bit values, so we can
123 * safely store NIR i1s in a 32-bit reg while always containing either a 1 or
128 * alu/sfu instructions:
131 static struct ir3_instruction
*
132 create_cov(struct ir3_context
*ctx
, struct ir3_instruction
*src
,
133 unsigned src_bitsize
, nir_op op
)
135 type_t src_type
, dst_type
;
139 case nir_op_f2f16_rtne
:
140 case nir_op_f2f16_rtz
:
148 switch (src_bitsize
) {
156 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
165 switch (src_bitsize
) {
176 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
185 switch (src_bitsize
) {
196 ir3_context_error(ctx
, "invalid src bit size: %u", src_bitsize
);
209 ir3_context_error(ctx
, "invalid conversion op: %u", op
);
220 case nir_op_f2f16_rtne
:
221 case nir_op_f2f16_rtz
:
263 ir3_context_error(ctx
, "invalid conversion op: %u", op
);
266 if (src_type
== dst_type
)
269 struct ir3_instruction
*cov
=
270 ir3_COV(ctx
->block
, src
, src_type
, dst_type
);
272 if (op
== nir_op_f2f16_rtne
)
273 cov
->regs
[0]->flags
|= IR3_REG_EVEN
;
279 emit_alu(struct ir3_context
*ctx
, nir_alu_instr
*alu
)
281 const nir_op_info
*info
= &nir_op_infos
[alu
->op
];
282 struct ir3_instruction
**dst
, *src
[info
->num_inputs
];
283 unsigned bs
[info
->num_inputs
]; /* bit size */
284 struct ir3_block
*b
= ctx
->block
;
285 unsigned dst_sz
, wrmask
;
286 type_t dst_type
= nir_dest_bit_size(alu
->dest
.dest
) == 16 ?
289 if (alu
->dest
.dest
.is_ssa
) {
290 dst_sz
= alu
->dest
.dest
.ssa
.num_components
;
291 wrmask
= (1 << dst_sz
) - 1;
293 dst_sz
= alu
->dest
.dest
.reg
.reg
->num_components
;
294 wrmask
= alu
->dest
.write_mask
;
297 dst
= ir3_get_dst(ctx
, &alu
->dest
.dest
, dst_sz
);
299 /* Vectors are special in that they have non-scalarized writemasks,
300 * and just take the first swizzle channel for each argument in
301 * order into each writemask channel.
303 if ((alu
->op
== nir_op_vec2
) ||
304 (alu
->op
== nir_op_vec3
) ||
305 (alu
->op
== nir_op_vec4
)) {
307 for (int i
= 0; i
< info
->num_inputs
; i
++) {
308 nir_alu_src
*asrc
= &alu
->src
[i
];
310 compile_assert(ctx
, !asrc
->abs
);
311 compile_assert(ctx
, !asrc
->negate
);
313 src
[i
] = ir3_get_src(ctx
, &asrc
->src
)[asrc
->swizzle
[0]];
315 src
[i
] = create_immed_typed(ctx
->block
, 0, dst_type
);
316 dst
[i
] = ir3_MOV(b
, src
[i
], dst_type
);
319 ir3_put_dst(ctx
, &alu
->dest
.dest
);
323 /* We also get mov's with more than one component for mov's so
324 * handle those specially:
326 if (alu
->op
== nir_op_mov
) {
327 nir_alu_src
*asrc
= &alu
->src
[0];
328 struct ir3_instruction
*const *src0
= ir3_get_src(ctx
, &asrc
->src
);
330 for (unsigned i
= 0; i
< dst_sz
; i
++) {
331 if (wrmask
& (1 << i
)) {
332 dst
[i
] = ir3_MOV(b
, src0
[asrc
->swizzle
[i
]], dst_type
);
338 ir3_put_dst(ctx
, &alu
->dest
.dest
);
342 /* General case: We can just grab the one used channel per src. */
343 for (int i
= 0; i
< info
->num_inputs
; i
++) {
344 unsigned chan
= ffs(alu
->dest
.write_mask
) - 1;
345 nir_alu_src
*asrc
= &alu
->src
[i
];
347 compile_assert(ctx
, !asrc
->abs
);
348 compile_assert(ctx
, !asrc
->negate
);
350 src
[i
] = ir3_get_src(ctx
, &asrc
->src
)[asrc
->swizzle
[chan
]];
351 bs
[i
] = nir_src_bit_size(asrc
->src
);
353 compile_assert(ctx
, src
[i
]);
358 case nir_op_f2f16_rtne
:
359 case nir_op_f2f16_rtz
:
382 dst
[0] = create_cov(ctx
, src
[0], bs
[0], alu
->op
);
385 case nir_op_fquantize2f16
:
386 dst
[0] = create_cov(ctx
,
387 create_cov(ctx
, src
[0], 32, nir_op_f2f16
),
391 dst
[0] = ir3_CMPS_F(b
,
393 create_immed_typed(b
, 0, bs
[0] == 16 ? TYPE_F16
: TYPE_F32
), 0);
394 dst
[0]->cat2
.condition
= IR3_COND_NE
;
398 /* i2b1 will appear when translating from nir_load_ubo or
399 * nir_intrinsic_load_ssbo, where any non-zero value is true.
401 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, create_immed(b
, 0), 0);
402 dst
[0]->cat2
.condition
= IR3_COND_NE
;
406 /* b2b1 will appear when translating from
408 * - nir_intrinsic_load_shared of a 32-bit 0/~0 value.
409 * - nir_intrinsic_load_constant of a 32-bit 0/~0 value
411 * A negate can turn those into a 1 or 0 for us.
413 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
417 /* b2b32 will appear when converting our 1-bit bools to a store_shared
420 * A negate can turn those into a ~0 for us.
422 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
426 dst
[0] = ir3_ABSNEG_F(b
, src
[0], IR3_REG_FNEG
);
429 dst
[0] = ir3_ABSNEG_F(b
, src
[0], IR3_REG_FABS
);
432 dst
[0] = ir3_MAX_F(b
, src
[0], 0, src
[1], 0);
435 dst
[0] = ir3_MIN_F(b
, src
[0], 0, src
[1], 0);
438 /* if there is just a single use of the src, and it supports
439 * (sat) bit, we can just fold the (sat) flag back to the
440 * src instruction and create a mov. This is easier for cp
443 * NOTE: a3xx definitely seen not working with flat bary.f. Same test
444 * uses ldlv on a4xx+, so not definitive. Seems rare enough to apply
447 * TODO probably opc_cat==4 is ok too
449 if (alu
->src
[0].src
.is_ssa
&&
450 src
[0]->opc
!= OPC_BARY_F
&&
451 (list_length(&alu
->src
[0].src
.ssa
->uses
) == 1) &&
452 ((opc_cat(src
[0]->opc
) == 2) || (opc_cat(src
[0]->opc
) == 3))) {
453 src
[0]->flags
|= IR3_INSTR_SAT
;
454 dst
[0] = ir3_MOV(b
, src
[0], dst_type
);
456 /* otherwise generate a max.f that saturates.. blob does
457 * similar (generating a cat2 mov using max.f)
459 dst
[0] = ir3_MAX_F(b
, src
[0], 0, src
[0], 0);
460 dst
[0]->flags
|= IR3_INSTR_SAT
;
464 dst
[0] = ir3_MUL_F(b
, src
[0], 0, src
[1], 0);
467 dst
[0] = ir3_ADD_F(b
, src
[0], 0, src
[1], 0);
470 dst
[0] = ir3_ADD_F(b
, src
[0], 0, src
[1], IR3_REG_FNEG
);
473 dst
[0] = ir3_MAD_F32(b
, src
[0], 0, src
[1], 0, src
[2], 0);
476 case nir_op_fddx_coarse
:
477 dst
[0] = ir3_DSX(b
, src
[0], 0);
478 dst
[0]->cat5
.type
= TYPE_F32
;
480 case nir_op_fddx_fine
:
481 dst
[0] = ir3_DSXPP_MACRO(b
, src
[0], 0);
482 dst
[0]->cat5
.type
= TYPE_F32
;
485 case nir_op_fddy_coarse
:
486 dst
[0] = ir3_DSY(b
, src
[0], 0);
487 dst
[0]->cat5
.type
= TYPE_F32
;
490 case nir_op_fddy_fine
:
491 dst
[0] = ir3_DSYPP_MACRO(b
, src
[0], 0);
492 dst
[0]->cat5
.type
= TYPE_F32
;
495 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
496 dst
[0]->cat2
.condition
= IR3_COND_LT
;
499 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
500 dst
[0]->cat2
.condition
= IR3_COND_GE
;
503 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
504 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
507 dst
[0] = ir3_CMPS_F(b
, src
[0], 0, src
[1], 0);
508 dst
[0]->cat2
.condition
= IR3_COND_NE
;
511 dst
[0] = ir3_CEIL_F(b
, src
[0], 0);
514 dst
[0] = ir3_FLOOR_F(b
, src
[0], 0);
517 dst
[0] = ir3_TRUNC_F(b
, src
[0], 0);
519 case nir_op_fround_even
:
520 dst
[0] = ir3_RNDNE_F(b
, src
[0], 0);
523 dst
[0] = ir3_SIGN_F(b
, src
[0], 0);
527 dst
[0] = ir3_SIN(b
, src
[0], 0);
530 dst
[0] = ir3_COS(b
, src
[0], 0);
533 dst
[0] = ir3_RSQ(b
, src
[0], 0);
536 dst
[0] = ir3_RCP(b
, src
[0], 0);
539 dst
[0] = ir3_LOG2(b
, src
[0], 0);
542 dst
[0] = ir3_EXP2(b
, src
[0], 0);
545 dst
[0] = ir3_SQRT(b
, src
[0], 0);
549 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SABS
);
552 dst
[0] = ir3_ADD_U(b
, src
[0], 0, src
[1], 0);
555 dst
[0] = ir3_AND_B(b
, src
[0], 0, src
[1], 0);
558 dst
[0] = ir3_MAX_S(b
, src
[0], 0, src
[1], 0);
561 dst
[0] = ir3_MAX_U(b
, src
[0], 0, src
[1], 0);
564 dst
[0] = ir3_MIN_S(b
, src
[0], 0, src
[1], 0);
567 dst
[0] = ir3_MIN_U(b
, src
[0], 0, src
[1], 0);
569 case nir_op_umul_low
:
570 dst
[0] = ir3_MULL_U(b
, src
[0], 0, src
[1], 0);
572 case nir_op_imadsh_mix16
:
573 dst
[0] = ir3_MADSH_M16(b
, src
[0], 0, src
[1], 0, src
[2], 0);
575 case nir_op_imad24_ir3
:
576 dst
[0] = ir3_MAD_S24(b
, src
[0], 0, src
[1], 0, src
[2], 0);
579 dst
[0] = ir3_MUL_S24(b
, src
[0], 0, src
[1], 0);
582 dst
[0] = ir3_ABSNEG_S(b
, src
[0], IR3_REG_SNEG
);
586 dst
[0] = ir3_SUB_U(b
, create_immed(ctx
->block
, 1), 0, src
[0], 0);
588 dst
[0] = ir3_NOT_B(b
, src
[0], 0);
592 dst
[0] = ir3_OR_B(b
, src
[0], 0, src
[1], 0);
595 dst
[0] = ir3_SHL_B(b
, src
[0], 0, src
[1], 0);
598 dst
[0] = ir3_ASHR_B(b
, src
[0], 0, src
[1], 0);
601 dst
[0] = ir3_SUB_U(b
, src
[0], 0, src
[1], 0);
604 dst
[0] = ir3_XOR_B(b
, src
[0], 0, src
[1], 0);
607 dst
[0] = ir3_SHR_B(b
, src
[0], 0, src
[1], 0);
610 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
611 dst
[0]->cat2
.condition
= IR3_COND_LT
;
614 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
615 dst
[0]->cat2
.condition
= IR3_COND_GE
;
618 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
619 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
622 dst
[0] = ir3_CMPS_S(b
, src
[0], 0, src
[1], 0);
623 dst
[0]->cat2
.condition
= IR3_COND_NE
;
626 dst
[0] = ir3_CMPS_U(b
, src
[0], 0, src
[1], 0);
627 dst
[0]->cat2
.condition
= IR3_COND_LT
;
630 dst
[0] = ir3_CMPS_U(b
, src
[0], 0, src
[1], 0);
631 dst
[0]->cat2
.condition
= IR3_COND_GE
;
635 struct ir3_instruction
*cond
= src
[0];
637 /* If src[0] is a negation (likely as a result of an ir3_b2n(cond)),
638 * we can ignore that and use original cond, since the nonzero-ness of
639 * cond stays the same.
641 if (cond
->opc
== OPC_ABSNEG_S
&&
643 (cond
->regs
[1]->flags
& (IR3_REG_SNEG
| IR3_REG_SABS
)) == IR3_REG_SNEG
) {
644 cond
= cond
->regs
[1]->instr
;
647 compile_assert(ctx
, bs
[1] == bs
[2]);
648 /* The condition's size has to match the other two arguments' size, so
649 * convert down if necessary.
652 struct hash_entry
*prev_entry
=
653 _mesa_hash_table_search(ctx
->sel_cond_conversions
, src
[0]);
655 cond
= prev_entry
->data
;
657 cond
= ir3_COV(b
, cond
, TYPE_U32
, TYPE_U16
);
658 _mesa_hash_table_insert(ctx
->sel_cond_conversions
, src
[0], cond
);
663 dst
[0] = ir3_SEL_B32(b
, src
[1], 0, cond
, 0, src
[2], 0);
665 dst
[0] = ir3_SEL_B16(b
, src
[1], 0, cond
, 0, src
[2], 0);
668 case nir_op_bit_count
: {
669 // TODO, we need to do this 16b at a time on a5xx+a6xx.. need to
670 // double check on earlier gen's. Once half-precision support is
671 // in place, this should probably move to a NIR lowering pass:
672 struct ir3_instruction
*hi
, *lo
;
674 hi
= ir3_COV(b
, ir3_SHR_B(b
, src
[0], 0, create_immed(b
, 16), 0),
676 lo
= ir3_COV(b
, src
[0], TYPE_U32
, TYPE_U16
);
678 hi
= ir3_CBITS_B(b
, hi
, 0);
679 lo
= ir3_CBITS_B(b
, lo
, 0);
681 // TODO maybe the builders should default to making dst half-precision
682 // if the src's were half precision, to make this less awkward.. otoh
683 // we should probably just do this lowering in NIR.
684 hi
->regs
[0]->flags
|= IR3_REG_HALF
;
685 lo
->regs
[0]->flags
|= IR3_REG_HALF
;
687 dst
[0] = ir3_ADD_S(b
, hi
, 0, lo
, 0);
688 dst
[0]->regs
[0]->flags
|= IR3_REG_HALF
;
689 dst
[0] = ir3_COV(b
, dst
[0], TYPE_U16
, TYPE_U32
);
692 case nir_op_ifind_msb
: {
693 struct ir3_instruction
*cmp
;
694 dst
[0] = ir3_CLZ_S(b
, src
[0], 0);
695 cmp
= ir3_CMPS_S(b
, dst
[0], 0, create_immed(b
, 0), 0);
696 cmp
->cat2
.condition
= IR3_COND_GE
;
697 dst
[0] = ir3_SEL_B32(b
,
698 ir3_SUB_U(b
, create_immed(b
, 31), 0, dst
[0], 0), 0,
702 case nir_op_ufind_msb
:
703 dst
[0] = ir3_CLZ_B(b
, src
[0], 0);
704 dst
[0] = ir3_SEL_B32(b
,
705 ir3_SUB_U(b
, create_immed(b
, 31), 0, dst
[0], 0), 0,
706 src
[0], 0, dst
[0], 0);
708 case nir_op_find_lsb
:
709 dst
[0] = ir3_BFREV_B(b
, src
[0], 0);
710 dst
[0] = ir3_CLZ_B(b
, dst
[0], 0);
712 case nir_op_bitfield_reverse
:
713 dst
[0] = ir3_BFREV_B(b
, src
[0], 0);
717 ir3_context_error(ctx
, "Unhandled ALU op: %s\n",
718 nir_op_infos
[alu
->op
].name
);
722 if (nir_alu_type_get_base_type(info
->output_type
) == nir_type_bool
) {
723 assert(nir_dest_bit_size(alu
->dest
.dest
) == 1 ||
724 alu
->op
== nir_op_b2b32
);
727 /* 1-bit values stored in 32-bit registers are only valid for certain
738 compile_assert(ctx
, nir_dest_bit_size(alu
->dest
.dest
) != 1);
742 ir3_put_dst(ctx
, &alu
->dest
.dest
);
746 emit_intrinsic_load_ubo_ldc(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
747 struct ir3_instruction
**dst
)
749 struct ir3_block
*b
= ctx
->block
;
751 unsigned ncomp
= intr
->num_components
;
752 struct ir3_instruction
*offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
753 struct ir3_instruction
*idx
= ir3_get_src(ctx
, &intr
->src
[0])[0];
754 struct ir3_instruction
*ldc
= ir3_LDC(b
, idx
, 0, offset
, 0);
755 ldc
->regs
[0]->wrmask
= MASK(ncomp
);
756 ldc
->cat6
.iim_val
= ncomp
;
757 ldc
->cat6
.d
= nir_intrinsic_base(intr
);
758 ldc
->cat6
.type
= TYPE_U32
;
760 ir3_handle_bindless_cat6(ldc
, intr
->src
[0]);
761 if (ldc
->flags
& IR3_INSTR_B
)
762 ctx
->so
->bindless_ubo
= true;
764 ir3_split_dest(b
, dst
, ldc
, 0, ncomp
);
768 /* handles direct/indirect UBO reads: */
770 emit_intrinsic_load_ubo(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
771 struct ir3_instruction
**dst
)
773 struct ir3_block
*b
= ctx
->block
;
774 struct ir3_instruction
*base_lo
, *base_hi
, *addr
, *src0
, *src1
;
775 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
776 unsigned ubo
= regid(const_state
->offsets
.ubo
, 0);
777 const unsigned ptrsz
= ir3_pointer_size(ctx
->compiler
);
781 /* First src is ubo index, which could either be an immed or not: */
782 src0
= ir3_get_src(ctx
, &intr
->src
[0])[0];
783 if (is_same_type_mov(src0
) &&
784 (src0
->regs
[1]->flags
& IR3_REG_IMMED
)) {
785 base_lo
= create_uniform(b
, ubo
+ (src0
->regs
[1]->iim_val
* ptrsz
));
786 base_hi
= create_uniform(b
, ubo
+ (src0
->regs
[1]->iim_val
* ptrsz
) + 1);
788 base_lo
= create_uniform_indirect(b
, ubo
, TYPE_U32
, ir3_get_addr0(ctx
, src0
, ptrsz
));
789 base_hi
= create_uniform_indirect(b
, ubo
+ 1, TYPE_U32
, ir3_get_addr0(ctx
, src0
, ptrsz
));
791 /* NOTE: since relative addressing is used, make sure constlen is
792 * at least big enough to cover all the UBO addresses, since the
793 * assembler won't know what the max address reg is.
795 ctx
->so
->constlen
= MAX2(ctx
->so
->constlen
,
796 const_state
->offsets
.ubo
+ (ctx
->s
->info
.num_ubos
* ptrsz
));
799 /* note: on 32bit gpu's base_hi is ignored and DCE'd */
802 if (nir_src_is_const(intr
->src
[1])) {
803 off
+= nir_src_as_uint(intr
->src
[1]);
805 /* For load_ubo_indirect, second src is indirect offset: */
806 src1
= ir3_get_src(ctx
, &intr
->src
[1])[0];
808 /* and add offset to addr: */
809 addr
= ir3_ADD_S(b
, addr
, 0, src1
, 0);
812 /* if offset is to large to encode in the ldg, split it out: */
813 if ((off
+ (intr
->num_components
* 4)) > 1024) {
814 /* split out the minimal amount to improve the odds that
815 * cp can fit the immediate in the add.s instruction:
817 unsigned off2
= off
+ (intr
->num_components
* 4) - 1024;
818 addr
= ir3_ADD_S(b
, addr
, 0, create_immed(b
, off2
), 0);
823 struct ir3_instruction
*carry
;
825 /* handle 32b rollover, ie:
826 * if (addr < base_lo)
829 carry
= ir3_CMPS_U(b
, addr
, 0, base_lo
, 0);
830 carry
->cat2
.condition
= IR3_COND_LT
;
831 base_hi
= ir3_ADD_S(b
, base_hi
, 0, carry
, 0);
833 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){ addr
, base_hi
}, 2);
836 for (int i
= 0; i
< intr
->num_components
; i
++) {
837 struct ir3_instruction
*load
=
838 ir3_LDG(b
, addr
, 0, create_immed(b
, 1), 0, /* num components */
839 create_immed(b
, off
+ i
* 4), 0);
840 load
->cat6
.type
= TYPE_U32
;
845 /* src[] = { block_index } */
847 emit_intrinsic_ssbo_size(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
848 struct ir3_instruction
**dst
)
850 if (ir3_bindless_resource(intr
->src
[0])) {
851 struct ir3_block
*b
= ctx
->block
;
852 struct ir3_instruction
*ibo
= ir3_ssbo_to_ibo(ctx
, intr
->src
[0]);
853 struct ir3_instruction
*resinfo
= ir3_RESINFO(b
, ibo
, 0);
854 resinfo
->cat6
.iim_val
= 1;
856 resinfo
->cat6
.type
= TYPE_U32
;
857 resinfo
->cat6
.typed
= false;
858 /* resinfo has no writemask and always writes out 3 components */
859 resinfo
->regs
[0]->wrmask
= MASK(3);
860 ir3_handle_bindless_cat6(resinfo
, intr
->src
[0]);
861 struct ir3_instruction
*resinfo_dst
;
862 ir3_split_dest(b
, &resinfo_dst
, resinfo
, 0, 1);
863 /* Unfortunately resinfo returns the array length, i.e. in dwords,
864 * while NIR expects us to return the size in bytes.
866 * TODO: fix this in NIR.
868 *dst
= ir3_SHL_B(b
, resinfo_dst
, 0, create_immed(b
, 2), 0);
872 /* SSBO size stored as a const starting at ssbo_sizes: */
873 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
874 unsigned blk_idx
= nir_src_as_uint(intr
->src
[0]);
875 unsigned idx
= regid(const_state
->offsets
.ssbo_sizes
, 0) +
876 const_state
->ssbo_size
.off
[blk_idx
];
878 debug_assert(const_state
->ssbo_size
.mask
& (1 << blk_idx
));
880 dst
[0] = create_uniform(ctx
->block
, idx
);
883 /* src[] = { offset }. const_index[] = { base } */
885 emit_intrinsic_load_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
886 struct ir3_instruction
**dst
)
888 struct ir3_block
*b
= ctx
->block
;
889 struct ir3_instruction
*ldl
, *offset
;
892 offset
= ir3_get_src(ctx
, &intr
->src
[0])[0];
893 base
= nir_intrinsic_base(intr
);
895 ldl
= ir3_LDL(b
, offset
, 0,
896 create_immed(b
, intr
->num_components
), 0,
897 create_immed(b
, base
), 0);
899 ldl
->cat6
.type
= utype_dst(intr
->dest
);
900 ldl
->regs
[0]->wrmask
= MASK(intr
->num_components
);
902 ldl
->barrier_class
= IR3_BARRIER_SHARED_R
;
903 ldl
->barrier_conflict
= IR3_BARRIER_SHARED_W
;
905 ir3_split_dest(b
, dst
, ldl
, 0, intr
->num_components
);
908 /* src[] = { value, offset }. const_index[] = { base, write_mask } */
910 emit_intrinsic_store_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
912 struct ir3_block
*b
= ctx
->block
;
913 struct ir3_instruction
*stl
, *offset
;
914 struct ir3_instruction
* const *value
;
915 unsigned base
, wrmask
, ncomp
;
917 value
= ir3_get_src(ctx
, &intr
->src
[0]);
918 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
920 base
= nir_intrinsic_base(intr
);
921 wrmask
= nir_intrinsic_write_mask(intr
);
922 ncomp
= ffs(~wrmask
) - 1;
924 assert(wrmask
== BITFIELD_MASK(intr
->num_components
));
926 stl
= ir3_STL(b
, offset
, 0,
927 ir3_create_collect(ctx
, value
, ncomp
), 0,
928 create_immed(b
, ncomp
), 0);
929 stl
->cat6
.dst_offset
= base
;
930 stl
->cat6
.type
= utype_src(intr
->src
[0]);
931 stl
->barrier_class
= IR3_BARRIER_SHARED_W
;
932 stl
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
934 array_insert(b
, b
->keeps
, stl
);
937 /* src[] = { offset }. const_index[] = { base } */
939 emit_intrinsic_load_shared_ir3(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
940 struct ir3_instruction
**dst
)
942 struct ir3_block
*b
= ctx
->block
;
943 struct ir3_instruction
*load
, *offset
;
946 offset
= ir3_get_src(ctx
, &intr
->src
[0])[0];
947 base
= nir_intrinsic_base(intr
);
949 load
= ir3_LDLW(b
, offset
, 0,
950 create_immed(b
, intr
->num_components
), 0,
951 create_immed(b
, base
), 0);
953 /* for a650, use LDL for tess ctrl inputs: */
954 if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
&& ctx
->compiler
->tess_use_shared
)
957 load
->cat6
.type
= utype_dst(intr
->dest
);
958 load
->regs
[0]->wrmask
= MASK(intr
->num_components
);
960 load
->barrier_class
= IR3_BARRIER_SHARED_R
;
961 load
->barrier_conflict
= IR3_BARRIER_SHARED_W
;
963 ir3_split_dest(b
, dst
, load
, 0, intr
->num_components
);
966 /* src[] = { value, offset }. const_index[] = { base } */
968 emit_intrinsic_store_shared_ir3(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
970 struct ir3_block
*b
= ctx
->block
;
971 struct ir3_instruction
*store
, *offset
;
972 struct ir3_instruction
* const *value
;
974 value
= ir3_get_src(ctx
, &intr
->src
[0]);
975 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
977 store
= ir3_STLW(b
, offset
, 0,
978 ir3_create_collect(ctx
, value
, intr
->num_components
), 0,
979 create_immed(b
, intr
->num_components
), 0);
981 /* for a650, use STL for vertex outputs used by tess ctrl shader: */
982 if (ctx
->so
->type
== MESA_SHADER_VERTEX
&& ctx
->so
->key
.tessellation
&&
983 ctx
->compiler
->tess_use_shared
)
984 store
->opc
= OPC_STL
;
986 store
->cat6
.dst_offset
= nir_intrinsic_base(intr
);
987 store
->cat6
.type
= utype_src(intr
->src
[0]);
988 store
->barrier_class
= IR3_BARRIER_SHARED_W
;
989 store
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
991 array_insert(b
, b
->keeps
, store
);
995 * CS shared variable atomic intrinsics
997 * All of the shared variable atomic memory operations read a value from
998 * memory, compute a new value using one of the operations below, write the
999 * new value to memory, and return the original value read.
1001 * All operations take 2 sources except CompSwap that takes 3. These
1002 * sources represent:
1004 * 0: The offset into the shared variable storage region that the atomic
1005 * operation will operate on.
1006 * 1: The data parameter to the atomic function (i.e. the value to add
1007 * in shared_atomic_add, etc).
1008 * 2: For CompSwap only: the second data parameter.
1010 static struct ir3_instruction
*
1011 emit_intrinsic_atomic_shared(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1013 struct ir3_block
*b
= ctx
->block
;
1014 struct ir3_instruction
*atomic
, *src0
, *src1
;
1015 type_t type
= TYPE_U32
;
1017 src0
= ir3_get_src(ctx
, &intr
->src
[0])[0]; /* offset */
1018 src1
= ir3_get_src(ctx
, &intr
->src
[1])[0]; /* value */
1020 switch (intr
->intrinsic
) {
1021 case nir_intrinsic_shared_atomic_add
:
1022 atomic
= ir3_ATOMIC_ADD(b
, src0
, 0, src1
, 0);
1024 case nir_intrinsic_shared_atomic_imin
:
1025 atomic
= ir3_ATOMIC_MIN(b
, src0
, 0, src1
, 0);
1028 case nir_intrinsic_shared_atomic_umin
:
1029 atomic
= ir3_ATOMIC_MIN(b
, src0
, 0, src1
, 0);
1031 case nir_intrinsic_shared_atomic_imax
:
1032 atomic
= ir3_ATOMIC_MAX(b
, src0
, 0, src1
, 0);
1035 case nir_intrinsic_shared_atomic_umax
:
1036 atomic
= ir3_ATOMIC_MAX(b
, src0
, 0, src1
, 0);
1038 case nir_intrinsic_shared_atomic_and
:
1039 atomic
= ir3_ATOMIC_AND(b
, src0
, 0, src1
, 0);
1041 case nir_intrinsic_shared_atomic_or
:
1042 atomic
= ir3_ATOMIC_OR(b
, src0
, 0, src1
, 0);
1044 case nir_intrinsic_shared_atomic_xor
:
1045 atomic
= ir3_ATOMIC_XOR(b
, src0
, 0, src1
, 0);
1047 case nir_intrinsic_shared_atomic_exchange
:
1048 atomic
= ir3_ATOMIC_XCHG(b
, src0
, 0, src1
, 0);
1050 case nir_intrinsic_shared_atomic_comp_swap
:
1051 /* for cmpxchg, src1 is [ui]vec2(data, compare): */
1052 src1
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1053 ir3_get_src(ctx
, &intr
->src
[2])[0],
1056 atomic
= ir3_ATOMIC_CMPXCHG(b
, src0
, 0, src1
, 0);
1062 atomic
->cat6
.iim_val
= 1;
1064 atomic
->cat6
.type
= type
;
1065 atomic
->barrier_class
= IR3_BARRIER_SHARED_W
;
1066 atomic
->barrier_conflict
= IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
;
1068 /* even if nothing consume the result, we can't DCE the instruction: */
1069 array_insert(b
, b
->keeps
, atomic
);
1074 struct tex_src_info
{
1076 unsigned tex_base
, samp_base
, tex_idx
, samp_idx
;
1077 /* For normal tex instructions */
1078 unsigned base
, combined_idx
, a1_val
, flags
;
1079 struct ir3_instruction
*samp_tex
;
1082 /* TODO handle actual indirect/dynamic case.. which is going to be weird
1083 * to handle with the image_mapping table..
1085 static struct tex_src_info
1086 get_image_samp_tex_src(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1088 struct ir3_block
*b
= ctx
->block
;
1089 struct tex_src_info info
= { 0 };
1090 nir_intrinsic_instr
*bindless_tex
= ir3_bindless_resource(intr
->src
[0]);
1091 ctx
->so
->bindless_tex
= true;
1095 info
.flags
|= IR3_INSTR_B
;
1097 /* Gather information required to determine which encoding to
1098 * choose as well as for prefetch.
1100 info
.tex_base
= nir_intrinsic_desc_set(bindless_tex
);
1101 bool tex_const
= nir_src_is_const(bindless_tex
->src
[0]);
1103 info
.tex_idx
= nir_src_as_uint(bindless_tex
->src
[0]);
1106 /* Choose encoding. */
1107 if (tex_const
&& info
.tex_idx
< 256) {
1108 if (info
.tex_idx
< 16) {
1109 /* Everything fits within the instruction */
1110 info
.base
= info
.tex_base
;
1111 info
.combined_idx
= info
.samp_idx
| (info
.tex_idx
<< 4);
1113 info
.base
= info
.tex_base
;
1114 info
.a1_val
= info
.tex_idx
<< 3;
1115 info
.combined_idx
= 0;
1116 info
.flags
|= IR3_INSTR_A1EN
;
1118 info
.samp_tex
= NULL
;
1120 info
.flags
|= IR3_INSTR_S2EN
;
1121 info
.base
= info
.tex_base
;
1123 /* Note: the indirect source is now a vec2 instead of hvec2 */
1124 struct ir3_instruction
*texture
, *sampler
;
1126 texture
= ir3_get_src(ctx
, &intr
->src
[0])[0];
1127 sampler
= create_immed(b
, 0);
1128 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1134 info
.flags
|= IR3_INSTR_S2EN
;
1135 unsigned slot
= nir_src_as_uint(intr
->src
[0]);
1136 unsigned tex_idx
= ir3_image_to_tex(&ctx
->so
->image_mapping
, slot
);
1137 struct ir3_instruction
*texture
, *sampler
;
1139 texture
= create_immed_typed(ctx
->block
, tex_idx
, TYPE_U16
);
1140 sampler
= create_immed_typed(ctx
->block
, tex_idx
, TYPE_U16
);
1142 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1151 static struct ir3_instruction
*
1152 emit_sam(struct ir3_context
*ctx
, opc_t opc
, struct tex_src_info info
,
1153 type_t type
, unsigned wrmask
, struct ir3_instruction
*src0
,
1154 struct ir3_instruction
*src1
)
1156 struct ir3_instruction
*sam
, *addr
;
1157 if (info
.flags
& IR3_INSTR_A1EN
) {
1158 addr
= ir3_get_addr1(ctx
, info
.a1_val
);
1160 sam
= ir3_SAM(ctx
->block
, opc
, type
, 0b1111, info
.flags
,
1161 info
.samp_tex
, src0
, src1
);
1162 if (info
.flags
& IR3_INSTR_A1EN
) {
1163 ir3_instr_set_address(sam
, addr
);
1165 if (info
.flags
& IR3_INSTR_B
) {
1166 sam
->cat5
.tex_base
= info
.base
;
1167 sam
->cat5
.samp
= info
.combined_idx
;
1172 /* src[] = { deref, coord, sample_index }. const_index[] = {} */
1174 emit_intrinsic_load_image(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1175 struct ir3_instruction
**dst
)
1177 struct ir3_block
*b
= ctx
->block
;
1178 struct tex_src_info info
= get_image_samp_tex_src(ctx
, intr
);
1179 struct ir3_instruction
*sam
;
1180 struct ir3_instruction
* const *src0
= ir3_get_src(ctx
, &intr
->src
[1]);
1181 struct ir3_instruction
*coords
[4];
1182 unsigned flags
, ncoords
= ir3_get_image_coords(intr
, &flags
);
1183 type_t type
= ir3_get_type_for_image_intrinsic(intr
);
1185 /* hmm, this seems a bit odd, but it is what blob does and (at least
1186 * a5xx) just faults on bogus addresses otherwise:
1188 if (flags
& IR3_INSTR_3D
) {
1189 flags
&= ~IR3_INSTR_3D
;
1190 flags
|= IR3_INSTR_A
;
1192 info
.flags
|= flags
;
1194 for (unsigned i
= 0; i
< ncoords
; i
++)
1195 coords
[i
] = src0
[i
];
1198 coords
[ncoords
++] = create_immed(b
, 0);
1200 sam
= emit_sam(ctx
, OPC_ISAM
, info
, type
, 0b1111,
1201 ir3_create_collect(ctx
, coords
, ncoords
), NULL
);
1203 sam
->barrier_class
= IR3_BARRIER_IMAGE_R
;
1204 sam
->barrier_conflict
= IR3_BARRIER_IMAGE_W
;
1206 ir3_split_dest(b
, dst
, sam
, 0, 4);
1209 /* A4xx version of image_size, see ir3_a6xx.c for newer resinfo version. */
1211 emit_intrinsic_image_size_tex(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1212 struct ir3_instruction
**dst
)
1214 struct ir3_block
*b
= ctx
->block
;
1215 struct tex_src_info info
= get_image_samp_tex_src(ctx
, intr
);
1216 struct ir3_instruction
*sam
, *lod
;
1217 unsigned flags
, ncoords
= ir3_get_image_coords(intr
, &flags
);
1218 type_t dst_type
= nir_dest_bit_size(intr
->dest
) == 16 ?
1219 TYPE_U16
: TYPE_U32
;
1221 info
.flags
|= flags
;
1222 lod
= create_immed(b
, 0);
1223 sam
= emit_sam(ctx
, OPC_GETSIZE
, info
, dst_type
, 0b1111, lod
, NULL
);
1225 /* Array size actually ends up in .w rather than .z. This doesn't
1226 * matter for miplevel 0, but for higher mips the value in z is
1227 * minified whereas w stays. Also, the value in TEX_CONST_3_DEPTH is
1228 * returned, which means that we have to add 1 to it for arrays for
1231 * Note use a temporary dst and then copy, since the size of the dst
1232 * array that is passed in is based on nir's understanding of the
1233 * result size, not the hardware's
1235 struct ir3_instruction
*tmp
[4];
1237 ir3_split_dest(b
, tmp
, sam
, 0, 4);
1239 /* get_size instruction returns size in bytes instead of texels
1240 * for imageBuffer, so we need to divide it by the pixel size
1241 * of the image format.
1243 * TODO: This is at least true on a5xx. Check other gens.
1245 if (nir_intrinsic_image_dim(intr
) == GLSL_SAMPLER_DIM_BUF
) {
1246 /* Since all the possible values the divisor can take are
1247 * power-of-two (4, 8, or 16), the division is implemented
1249 * During shader setup, the log2 of the image format's
1250 * bytes-per-pixel should have been emitted in 2nd slot of
1251 * image_dims. See ir3_shader::emit_image_dims().
1253 const struct ir3_const_state
*const_state
=
1254 ir3_const_state(ctx
->so
);
1255 unsigned cb
= regid(const_state
->offsets
.image_dims
, 0) +
1256 const_state
->image_dims
.off
[nir_src_as_uint(intr
->src
[0])];
1257 struct ir3_instruction
*aux
= create_uniform(b
, cb
+ 1);
1259 tmp
[0] = ir3_SHR_B(b
, tmp
[0], 0, aux
, 0);
1262 for (unsigned i
= 0; i
< ncoords
; i
++)
1265 if (flags
& IR3_INSTR_A
) {
1266 if (ctx
->compiler
->levels_add_one
) {
1267 dst
[ncoords
-1] = ir3_ADD_U(b
, tmp
[3], 0, create_immed(b
, 1), 0);
1269 dst
[ncoords
-1] = ir3_MOV(b
, tmp
[3], TYPE_U32
);
1275 emit_intrinsic_barrier(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1277 struct ir3_block
*b
= ctx
->block
;
1278 struct ir3_instruction
*barrier
;
1280 switch (intr
->intrinsic
) {
1281 case nir_intrinsic_control_barrier
:
1282 barrier
= ir3_BAR(b
);
1283 barrier
->cat7
.g
= true;
1284 barrier
->cat7
.l
= true;
1285 barrier
->flags
= IR3_INSTR_SS
| IR3_INSTR_SY
;
1286 barrier
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1288 case nir_intrinsic_memory_barrier
:
1289 barrier
= ir3_FENCE(b
);
1290 barrier
->cat7
.g
= true;
1291 barrier
->cat7
.r
= true;
1292 barrier
->cat7
.w
= true;
1293 barrier
->cat7
.l
= true;
1294 barrier
->barrier_class
= IR3_BARRIER_IMAGE_W
|
1295 IR3_BARRIER_BUFFER_W
;
1296 barrier
->barrier_conflict
=
1297 IR3_BARRIER_IMAGE_R
| IR3_BARRIER_IMAGE_W
|
1298 IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1300 case nir_intrinsic_memory_barrier_buffer
:
1301 barrier
= ir3_FENCE(b
);
1302 barrier
->cat7
.g
= true;
1303 barrier
->cat7
.r
= true;
1304 barrier
->cat7
.w
= true;
1305 barrier
->barrier_class
= IR3_BARRIER_BUFFER_W
;
1306 barrier
->barrier_conflict
= IR3_BARRIER_BUFFER_R
|
1307 IR3_BARRIER_BUFFER_W
;
1309 case nir_intrinsic_memory_barrier_image
:
1310 // TODO double check if this should have .g set
1311 barrier
= ir3_FENCE(b
);
1312 barrier
->cat7
.g
= true;
1313 barrier
->cat7
.r
= true;
1314 barrier
->cat7
.w
= true;
1315 barrier
->barrier_class
= IR3_BARRIER_IMAGE_W
;
1316 barrier
->barrier_conflict
= IR3_BARRIER_IMAGE_R
|
1317 IR3_BARRIER_IMAGE_W
;
1319 case nir_intrinsic_memory_barrier_shared
:
1320 barrier
= ir3_FENCE(b
);
1321 barrier
->cat7
.g
= true;
1322 barrier
->cat7
.l
= true;
1323 barrier
->cat7
.r
= true;
1324 barrier
->cat7
.w
= true;
1325 barrier
->barrier_class
= IR3_BARRIER_SHARED_W
;
1326 barrier
->barrier_conflict
= IR3_BARRIER_SHARED_R
|
1327 IR3_BARRIER_SHARED_W
;
1329 case nir_intrinsic_group_memory_barrier
:
1330 barrier
= ir3_FENCE(b
);
1331 barrier
->cat7
.g
= true;
1332 barrier
->cat7
.l
= true;
1333 barrier
->cat7
.r
= true;
1334 barrier
->cat7
.w
= true;
1335 barrier
->barrier_class
= IR3_BARRIER_SHARED_W
|
1336 IR3_BARRIER_IMAGE_W
|
1337 IR3_BARRIER_BUFFER_W
;
1338 barrier
->barrier_conflict
=
1339 IR3_BARRIER_SHARED_R
| IR3_BARRIER_SHARED_W
|
1340 IR3_BARRIER_IMAGE_R
| IR3_BARRIER_IMAGE_W
|
1341 IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1347 /* make sure barrier doesn't get DCE'd */
1348 array_insert(b
, b
->keeps
, barrier
);
1351 static void add_sysval_input_compmask(struct ir3_context
*ctx
,
1352 gl_system_value slot
, unsigned compmask
,
1353 struct ir3_instruction
*instr
)
1355 struct ir3_shader_variant
*so
= ctx
->so
;
1356 unsigned n
= so
->inputs_count
++;
1358 assert(instr
->opc
== OPC_META_INPUT
);
1359 instr
->input
.inidx
= n
;
1360 instr
->input
.sysval
= slot
;
1362 so
->inputs
[n
].sysval
= true;
1363 so
->inputs
[n
].slot
= slot
;
1364 so
->inputs
[n
].compmask
= compmask
;
1365 so
->inputs
[n
].interpolate
= INTERP_MODE_FLAT
;
1369 static struct ir3_instruction
*
1370 create_sysval_input(struct ir3_context
*ctx
, gl_system_value slot
,
1374 struct ir3_instruction
*sysval
= create_input(ctx
, compmask
);
1375 add_sysval_input_compmask(ctx
, slot
, compmask
, sysval
);
1379 static struct ir3_instruction
*
1380 get_barycentric(struct ir3_context
*ctx
, enum ir3_bary bary
)
1382 static const gl_system_value sysval_base
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1384 STATIC_ASSERT(sysval_base
+ IJ_PERSP_PIXEL
== SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
);
1385 STATIC_ASSERT(sysval_base
+ IJ_PERSP_SAMPLE
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
);
1386 STATIC_ASSERT(sysval_base
+ IJ_PERSP_CENTROID
== SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID
);
1387 STATIC_ASSERT(sysval_base
+ IJ_PERSP_SIZE
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SIZE
);
1388 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_PIXEL
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
);
1389 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_CENTROID
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID
);
1390 STATIC_ASSERT(sysval_base
+ IJ_LINEAR_SAMPLE
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
);
1392 if (!ctx
->ij
[bary
]) {
1393 struct ir3_instruction
*xy
[2];
1394 struct ir3_instruction
*ij
;
1396 ij
= create_sysval_input(ctx
, sysval_base
+ bary
, 0x3);
1397 ir3_split_dest(ctx
->block
, xy
, ij
, 0, 2);
1399 ctx
->ij
[bary
] = ir3_create_collect(ctx
, xy
, 2);
1402 return ctx
->ij
[bary
];
1405 /* TODO: make this a common NIR helper?
1406 * there is a nir_system_value_from_intrinsic but it takes nir_intrinsic_op so it
1407 * can't be extended to work with this
1409 static gl_system_value
1410 nir_intrinsic_barycentric_sysval(nir_intrinsic_instr
*intr
)
1412 enum glsl_interp_mode interp_mode
= nir_intrinsic_interp_mode(intr
);
1413 gl_system_value sysval
;
1415 switch (intr
->intrinsic
) {
1416 case nir_intrinsic_load_barycentric_pixel
:
1417 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1418 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
;
1420 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1422 case nir_intrinsic_load_barycentric_centroid
:
1423 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1424 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_CENTROID
;
1426 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_CENTROID
;
1428 case nir_intrinsic_load_barycentric_sample
:
1429 if (interp_mode
== INTERP_MODE_NOPERSPECTIVE
)
1430 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
;
1432 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
;
1435 unreachable("invalid barycentric intrinsic");
1442 emit_intrinsic_barycentric(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
,
1443 struct ir3_instruction
**dst
)
1445 gl_system_value sysval
= nir_intrinsic_barycentric_sysval(intr
);
1447 if (!ctx
->so
->key
.msaa
) {
1448 if (sysval
== SYSTEM_VALUE_BARYCENTRIC_PERSP_SAMPLE
)
1449 sysval
= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1450 if (sysval
== SYSTEM_VALUE_BARYCENTRIC_LINEAR_SAMPLE
)
1451 sysval
= SYSTEM_VALUE_BARYCENTRIC_LINEAR_PIXEL
;
1454 enum ir3_bary bary
= sysval
- SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
;
1456 struct ir3_instruction
*ij
= get_barycentric(ctx
, bary
);
1457 ir3_split_dest(ctx
->block
, dst
, ij
, 0, 2);
1460 static struct ir3_instruction
*
1461 get_frag_coord(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1463 if (!ctx
->frag_coord
) {
1464 struct ir3_block
*b
= ctx
->in_block
;
1465 struct ir3_instruction
*xyzw
[4];
1466 struct ir3_instruction
*hw_frag_coord
;
1468 hw_frag_coord
= create_sysval_input(ctx
, SYSTEM_VALUE_FRAG_COORD
, 0xf);
1469 ir3_split_dest(b
, xyzw
, hw_frag_coord
, 0, 4);
1471 /* for frag_coord.xy, we get unsigned values.. we need
1472 * to subtract (integer) 8 and divide by 16 (right-
1473 * shift by 4) then convert to float:
1477 * mov.u32f32 dst, tmp
1480 for (int i
= 0; i
< 2; i
++) {
1481 xyzw
[i
] = ir3_COV(b
, xyzw
[i
], TYPE_U32
, TYPE_F32
);
1482 xyzw
[i
] = ir3_MUL_F(b
, xyzw
[i
], 0, create_immed(b
, fui(1.0 / 16.0)), 0);
1485 ctx
->frag_coord
= ir3_create_collect(ctx
, xyzw
, 4);
1488 ctx
->so
->fragcoord_compmask
|=
1489 nir_ssa_def_components_read(&intr
->dest
.ssa
);
1491 return ctx
->frag_coord
;
1495 emit_intrinsic(struct ir3_context
*ctx
, nir_intrinsic_instr
*intr
)
1497 const nir_intrinsic_info
*info
= &nir_intrinsic_infos
[intr
->intrinsic
];
1498 struct ir3_instruction
**dst
;
1499 struct ir3_instruction
* const *src
;
1500 struct ir3_block
*b
= ctx
->block
;
1501 unsigned dest_components
= nir_intrinsic_dest_components(intr
);
1504 if (info
->has_dest
) {
1505 dst
= ir3_get_dst(ctx
, &intr
->dest
, dest_components
);
1510 const struct ir3_const_state
*const_state
= ir3_const_state(ctx
->so
);
1511 const unsigned primitive_param
= const_state
->offsets
.primitive_param
* 4;
1512 const unsigned primitive_map
= const_state
->offsets
.primitive_map
* 4;
1514 switch (intr
->intrinsic
) {
1515 case nir_intrinsic_load_uniform
:
1516 idx
= nir_intrinsic_base(intr
);
1517 if (nir_src_is_const(intr
->src
[0])) {
1518 idx
+= nir_src_as_uint(intr
->src
[0]);
1519 for (int i
= 0; i
< dest_components
; i
++) {
1520 dst
[i
] = create_uniform_typed(b
, idx
+ i
,
1521 nir_dest_bit_size(intr
->dest
) == 16 ? TYPE_F16
: TYPE_F32
);
1524 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1525 for (int i
= 0; i
< dest_components
; i
++) {
1526 dst
[i
] = create_uniform_indirect(b
, idx
+ i
,
1527 nir_dest_bit_size(intr
->dest
) == 16 ? TYPE_F16
: TYPE_F32
,
1528 ir3_get_addr0(ctx
, src
[0], 1));
1530 /* NOTE: if relative addressing is used, we set
1531 * constlen in the compiler (to worst-case value)
1532 * since we don't know in the assembler what the max
1533 * addr reg value can be:
1535 ctx
->so
->constlen
= MAX2(ctx
->so
->constlen
,
1536 const_state
->ubo_state
.size
/ 16);
1540 case nir_intrinsic_load_vs_primitive_stride_ir3
:
1541 dst
[0] = create_uniform(b
, primitive_param
+ 0);
1543 case nir_intrinsic_load_vs_vertex_stride_ir3
:
1544 dst
[0] = create_uniform(b
, primitive_param
+ 1);
1546 case nir_intrinsic_load_hs_patch_stride_ir3
:
1547 dst
[0] = create_uniform(b
, primitive_param
+ 2);
1549 case nir_intrinsic_load_patch_vertices_in
:
1550 dst
[0] = create_uniform(b
, primitive_param
+ 3);
1552 case nir_intrinsic_load_tess_param_base_ir3
:
1553 dst
[0] = create_uniform(b
, primitive_param
+ 4);
1554 dst
[1] = create_uniform(b
, primitive_param
+ 5);
1556 case nir_intrinsic_load_tess_factor_base_ir3
:
1557 dst
[0] = create_uniform(b
, primitive_param
+ 6);
1558 dst
[1] = create_uniform(b
, primitive_param
+ 7);
1561 case nir_intrinsic_load_primitive_location_ir3
:
1562 idx
= nir_intrinsic_driver_location(intr
);
1563 dst
[0] = create_uniform(b
, primitive_map
+ idx
);
1566 case nir_intrinsic_load_gs_header_ir3
:
1567 dst
[0] = ctx
->gs_header
;
1569 case nir_intrinsic_load_tcs_header_ir3
:
1570 dst
[0] = ctx
->tcs_header
;
1573 case nir_intrinsic_load_primitive_id
:
1574 dst
[0] = ctx
->primitive_id
;
1577 case nir_intrinsic_load_tess_coord
:
1578 if (!ctx
->tess_coord
) {
1580 create_sysval_input(ctx
, SYSTEM_VALUE_TESS_COORD
, 0x3);
1582 ir3_split_dest(b
, dst
, ctx
->tess_coord
, 0, 2);
1584 /* Unused, but ir3_put_dst() below wants to free something */
1585 dst
[2] = create_immed(b
, 0);
1588 case nir_intrinsic_end_patch_ir3
:
1589 assert(ctx
->so
->type
== MESA_SHADER_TESS_CTRL
);
1590 struct ir3_instruction
*end
= ir3_PREDE(b
);
1591 array_insert(b
, b
->keeps
, end
);
1593 end
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1594 end
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
1597 case nir_intrinsic_store_global_ir3
: {
1598 struct ir3_instruction
*value
, *addr
, *offset
;
1599 unsigned ncomp
= nir_intrinsic_src_components(intr
, 0);
1601 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1602 ir3_get_src(ctx
, &intr
->src
[1])[0],
1603 ir3_get_src(ctx
, &intr
->src
[1])[1]
1606 offset
= ir3_get_src(ctx
, &intr
->src
[2])[0];
1608 value
= ir3_create_collect(ctx
, ir3_get_src(ctx
, &intr
->src
[0]), ncomp
);
1610 struct ir3_instruction
*stg
=
1611 ir3_STG_G(ctx
->block
, addr
, 0, value
, 0,
1612 create_immed(ctx
->block
, ncomp
), 0, offset
, 0);
1613 stg
->cat6
.type
= TYPE_U32
;
1614 stg
->cat6
.iim_val
= 1;
1616 array_insert(b
, b
->keeps
, stg
);
1618 stg
->barrier_class
= IR3_BARRIER_BUFFER_W
;
1619 stg
->barrier_conflict
= IR3_BARRIER_BUFFER_R
| IR3_BARRIER_BUFFER_W
;
1623 case nir_intrinsic_load_global_ir3
: {
1624 struct ir3_instruction
*addr
, *offset
;
1626 addr
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
1627 ir3_get_src(ctx
, &intr
->src
[0])[0],
1628 ir3_get_src(ctx
, &intr
->src
[0])[1]
1631 offset
= ir3_get_src(ctx
, &intr
->src
[1])[0];
1633 struct ir3_instruction
*load
=
1634 ir3_LDG(b
, addr
, 0, create_immed(ctx
->block
, dest_components
),
1636 load
->cat6
.type
= TYPE_U32
;
1637 load
->regs
[0]->wrmask
= MASK(dest_components
);
1639 load
->barrier_class
= IR3_BARRIER_BUFFER_R
;
1640 load
->barrier_conflict
= IR3_BARRIER_BUFFER_W
;
1642 ir3_split_dest(b
, dst
, load
, 0, dest_components
);
1646 case nir_intrinsic_load_ubo
:
1647 emit_intrinsic_load_ubo(ctx
, intr
, dst
);
1649 case nir_intrinsic_load_ubo_ir3
:
1650 emit_intrinsic_load_ubo_ldc(ctx
, intr
, dst
);
1652 case nir_intrinsic_load_frag_coord
:
1653 ir3_split_dest(b
, dst
, get_frag_coord(ctx
, intr
), 0, 4);
1655 case nir_intrinsic_load_sample_pos_from_id
: {
1656 /* NOTE: blob seems to always use TYPE_F16 and then cov.f16f32,
1657 * but that doesn't seem necessary.
1659 struct ir3_instruction
*offset
=
1660 ir3_RGETPOS(b
, ir3_get_src(ctx
, &intr
->src
[0])[0], 0);
1661 offset
->regs
[0]->wrmask
= 0x3;
1662 offset
->cat5
.type
= TYPE_F32
;
1664 ir3_split_dest(b
, dst
, offset
, 0, 2);
1668 case nir_intrinsic_load_size_ir3
:
1669 if (!ctx
->ij
[IJ_PERSP_SIZE
]) {
1670 ctx
->ij
[IJ_PERSP_SIZE
] =
1671 create_sysval_input(ctx
, SYSTEM_VALUE_BARYCENTRIC_PERSP_SIZE
, 0x1);
1673 dst
[0] = ctx
->ij
[IJ_PERSP_SIZE
];
1675 case nir_intrinsic_load_barycentric_centroid
:
1676 case nir_intrinsic_load_barycentric_sample
:
1677 case nir_intrinsic_load_barycentric_pixel
:
1678 emit_intrinsic_barycentric(ctx
, intr
, dst
);
1680 case nir_intrinsic_load_interpolated_input
:
1681 idx
= nir_intrinsic_base(intr
);
1682 comp
= nir_intrinsic_component(intr
);
1683 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1684 if (nir_src_is_const(intr
->src
[1])) {
1685 struct ir3_instruction
*coord
= ir3_create_collect(ctx
, src
, 2);
1686 idx
+= nir_src_as_uint(intr
->src
[1]);
1687 for (int i
= 0; i
< dest_components
; i
++) {
1688 unsigned inloc
= idx
* 4 + i
+ comp
;
1689 if (ctx
->so
->inputs
[idx
].bary
&&
1690 !ctx
->so
->inputs
[idx
].use_ldlv
) {
1691 dst
[i
] = ir3_BARY_F(b
, create_immed(b
, inloc
), 0, coord
, 0);
1693 /* for non-varyings use the pre-setup input, since
1694 * that is easier than mapping things back to a
1695 * nir_variable to figure out what it is.
1697 dst
[i
] = ctx
->inputs
[inloc
];
1698 compile_assert(ctx
, dst
[i
]);
1702 ir3_context_error(ctx
, "unhandled");
1705 case nir_intrinsic_load_input
:
1706 idx
= nir_intrinsic_base(intr
);
1707 comp
= nir_intrinsic_component(intr
);
1708 if (nir_src_is_const(intr
->src
[0])) {
1709 idx
+= nir_src_as_uint(intr
->src
[0]);
1710 for (int i
= 0; i
< dest_components
; i
++) {
1711 unsigned n
= idx
* 4 + i
+ comp
;
1712 dst
[i
] = ctx
->inputs
[n
];
1713 compile_assert(ctx
, ctx
->inputs
[n
]);
1716 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1717 struct ir3_instruction
*collect
=
1718 ir3_create_collect(ctx
, ctx
->ir
->inputs
, ctx
->ninputs
);
1719 struct ir3_instruction
*addr
= ir3_get_addr0(ctx
, src
[0], 4);
1720 for (int i
= 0; i
< dest_components
; i
++) {
1721 unsigned n
= idx
* 4 + i
+ comp
;
1722 dst
[i
] = create_indirect_load(ctx
, ctx
->ninputs
,
1727 /* All SSBO intrinsics should have been lowered by 'lower_io_offsets'
1728 * pass and replaced by an ir3-specifc version that adds the
1729 * dword-offset in the last source.
1731 case nir_intrinsic_load_ssbo_ir3
:
1732 ctx
->funcs
->emit_intrinsic_load_ssbo(ctx
, intr
, dst
);
1734 case nir_intrinsic_store_ssbo_ir3
:
1735 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1736 !ctx
->s
->info
.fs
.early_fragment_tests
)
1737 ctx
->so
->no_earlyz
= true;
1738 ctx
->funcs
->emit_intrinsic_store_ssbo(ctx
, intr
);
1740 case nir_intrinsic_get_buffer_size
:
1741 emit_intrinsic_ssbo_size(ctx
, intr
, dst
);
1743 case nir_intrinsic_ssbo_atomic_add_ir3
:
1744 case nir_intrinsic_ssbo_atomic_imin_ir3
:
1745 case nir_intrinsic_ssbo_atomic_umin_ir3
:
1746 case nir_intrinsic_ssbo_atomic_imax_ir3
:
1747 case nir_intrinsic_ssbo_atomic_umax_ir3
:
1748 case nir_intrinsic_ssbo_atomic_and_ir3
:
1749 case nir_intrinsic_ssbo_atomic_or_ir3
:
1750 case nir_intrinsic_ssbo_atomic_xor_ir3
:
1751 case nir_intrinsic_ssbo_atomic_exchange_ir3
:
1752 case nir_intrinsic_ssbo_atomic_comp_swap_ir3
:
1753 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1754 !ctx
->s
->info
.fs
.early_fragment_tests
)
1755 ctx
->so
->no_earlyz
= true;
1756 dst
[0] = ctx
->funcs
->emit_intrinsic_atomic_ssbo(ctx
, intr
);
1758 case nir_intrinsic_load_shared
:
1759 emit_intrinsic_load_shared(ctx
, intr
, dst
);
1761 case nir_intrinsic_store_shared
:
1762 emit_intrinsic_store_shared(ctx
, intr
);
1764 case nir_intrinsic_shared_atomic_add
:
1765 case nir_intrinsic_shared_atomic_imin
:
1766 case nir_intrinsic_shared_atomic_umin
:
1767 case nir_intrinsic_shared_atomic_imax
:
1768 case nir_intrinsic_shared_atomic_umax
:
1769 case nir_intrinsic_shared_atomic_and
:
1770 case nir_intrinsic_shared_atomic_or
:
1771 case nir_intrinsic_shared_atomic_xor
:
1772 case nir_intrinsic_shared_atomic_exchange
:
1773 case nir_intrinsic_shared_atomic_comp_swap
:
1774 dst
[0] = emit_intrinsic_atomic_shared(ctx
, intr
);
1776 case nir_intrinsic_image_load
:
1777 emit_intrinsic_load_image(ctx
, intr
, dst
);
1779 case nir_intrinsic_bindless_image_load
:
1780 /* Bindless uses the IBO state, which doesn't have swizzle filled out,
1781 * so using isam doesn't work.
1783 * TODO: can we use isam if we fill out more fields?
1785 ctx
->funcs
->emit_intrinsic_load_image(ctx
, intr
, dst
);
1787 case nir_intrinsic_image_store
:
1788 case nir_intrinsic_bindless_image_store
:
1789 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1790 !ctx
->s
->info
.fs
.early_fragment_tests
)
1791 ctx
->so
->no_earlyz
= true;
1792 ctx
->funcs
->emit_intrinsic_store_image(ctx
, intr
);
1794 case nir_intrinsic_image_size
:
1795 case nir_intrinsic_bindless_image_size
:
1796 ctx
->funcs
->emit_intrinsic_image_size(ctx
, intr
, dst
);
1798 case nir_intrinsic_image_atomic_add
:
1799 case nir_intrinsic_bindless_image_atomic_add
:
1800 case nir_intrinsic_image_atomic_imin
:
1801 case nir_intrinsic_bindless_image_atomic_imin
:
1802 case nir_intrinsic_image_atomic_umin
:
1803 case nir_intrinsic_bindless_image_atomic_umin
:
1804 case nir_intrinsic_image_atomic_imax
:
1805 case nir_intrinsic_bindless_image_atomic_imax
:
1806 case nir_intrinsic_image_atomic_umax
:
1807 case nir_intrinsic_bindless_image_atomic_umax
:
1808 case nir_intrinsic_image_atomic_and
:
1809 case nir_intrinsic_bindless_image_atomic_and
:
1810 case nir_intrinsic_image_atomic_or
:
1811 case nir_intrinsic_bindless_image_atomic_or
:
1812 case nir_intrinsic_image_atomic_xor
:
1813 case nir_intrinsic_bindless_image_atomic_xor
:
1814 case nir_intrinsic_image_atomic_exchange
:
1815 case nir_intrinsic_bindless_image_atomic_exchange
:
1816 case nir_intrinsic_image_atomic_comp_swap
:
1817 case nir_intrinsic_bindless_image_atomic_comp_swap
:
1818 if ((ctx
->so
->type
== MESA_SHADER_FRAGMENT
) &&
1819 !ctx
->s
->info
.fs
.early_fragment_tests
)
1820 ctx
->so
->no_earlyz
= true;
1821 dst
[0] = ctx
->funcs
->emit_intrinsic_atomic_image(ctx
, intr
);
1823 case nir_intrinsic_control_barrier
:
1824 case nir_intrinsic_memory_barrier
:
1825 case nir_intrinsic_group_memory_barrier
:
1826 case nir_intrinsic_memory_barrier_buffer
:
1827 case nir_intrinsic_memory_barrier_image
:
1828 case nir_intrinsic_memory_barrier_shared
:
1829 emit_intrinsic_barrier(ctx
, intr
);
1830 /* note that blk ptr no longer valid, make that obvious: */
1833 case nir_intrinsic_store_output
:
1834 idx
= nir_intrinsic_base(intr
);
1835 comp
= nir_intrinsic_component(intr
);
1836 compile_assert(ctx
, nir_src_is_const(intr
->src
[1]));
1837 idx
+= nir_src_as_uint(intr
->src
[1]);
1839 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1840 for (int i
= 0; i
< nir_intrinsic_src_components(intr
, 0); i
++) {
1841 unsigned n
= idx
* 4 + i
+ comp
;
1842 ctx
->outputs
[n
] = src
[i
];
1845 case nir_intrinsic_load_base_vertex
:
1846 case nir_intrinsic_load_first_vertex
:
1847 if (!ctx
->basevertex
) {
1848 ctx
->basevertex
= create_driver_param(ctx
, IR3_DP_VTXID_BASE
);
1850 dst
[0] = ctx
->basevertex
;
1852 case nir_intrinsic_load_draw_id
:
1853 if (!ctx
->draw_id
) {
1854 ctx
->draw_id
= create_driver_param(ctx
, IR3_DP_DRAWID
);
1856 dst
[0] = ctx
->draw_id
;
1858 case nir_intrinsic_load_base_instance
:
1859 if (!ctx
->base_instance
) {
1860 ctx
->base_instance
= create_driver_param(ctx
, IR3_DP_INSTID_BASE
);
1862 dst
[0] = ctx
->base_instance
;
1864 case nir_intrinsic_load_view_index
:
1865 if (!ctx
->view_index
) {
1866 ctx
->view_index
= create_sysval_input(ctx
, SYSTEM_VALUE_VIEW_INDEX
, 0x1);
1868 dst
[0] = ctx
->view_index
;
1870 case nir_intrinsic_load_vertex_id_zero_base
:
1871 case nir_intrinsic_load_vertex_id
:
1872 if (!ctx
->vertex_id
) {
1873 gl_system_value sv
= (intr
->intrinsic
== nir_intrinsic_load_vertex_id
) ?
1874 SYSTEM_VALUE_VERTEX_ID
: SYSTEM_VALUE_VERTEX_ID_ZERO_BASE
;
1875 ctx
->vertex_id
= create_sysval_input(ctx
, sv
, 0x1);
1877 dst
[0] = ctx
->vertex_id
;
1879 case nir_intrinsic_load_instance_id
:
1880 if (!ctx
->instance_id
) {
1881 ctx
->instance_id
= create_sysval_input(ctx
, SYSTEM_VALUE_INSTANCE_ID
, 0x1);
1883 dst
[0] = ctx
->instance_id
;
1885 case nir_intrinsic_load_sample_id
:
1886 ctx
->so
->per_samp
= true;
1888 case nir_intrinsic_load_sample_id_no_per_sample
:
1889 if (!ctx
->samp_id
) {
1890 ctx
->samp_id
= create_sysval_input(ctx
, SYSTEM_VALUE_SAMPLE_ID
, 0x1);
1891 ctx
->samp_id
->regs
[0]->flags
|= IR3_REG_HALF
;
1893 dst
[0] = ir3_COV(b
, ctx
->samp_id
, TYPE_U16
, TYPE_U32
);
1895 case nir_intrinsic_load_sample_mask_in
:
1896 if (!ctx
->samp_mask_in
) {
1897 ctx
->samp_mask_in
= create_sysval_input(ctx
, SYSTEM_VALUE_SAMPLE_MASK_IN
, 0x1);
1899 dst
[0] = ctx
->samp_mask_in
;
1901 case nir_intrinsic_load_user_clip_plane
:
1902 idx
= nir_intrinsic_ucp_id(intr
);
1903 for (int i
= 0; i
< dest_components
; i
++) {
1904 unsigned n
= idx
* 4 + i
;
1905 dst
[i
] = create_driver_param(ctx
, IR3_DP_UCP0_X
+ n
);
1908 case nir_intrinsic_load_front_face
:
1909 if (!ctx
->frag_face
) {
1910 ctx
->so
->frag_face
= true;
1911 ctx
->frag_face
= create_sysval_input(ctx
, SYSTEM_VALUE_FRONT_FACE
, 0x1);
1912 ctx
->frag_face
->regs
[0]->flags
|= IR3_REG_HALF
;
1914 /* for fragface, we get -1 for back and 0 for front. However this is
1915 * the inverse of what nir expects (where ~0 is true).
1917 dst
[0] = ir3_CMPS_S(b
,
1919 create_immed_typed(b
, 0, TYPE_U16
), 0);
1920 dst
[0]->cat2
.condition
= IR3_COND_EQ
;
1922 case nir_intrinsic_load_local_invocation_id
:
1923 if (!ctx
->local_invocation_id
) {
1924 ctx
->local_invocation_id
=
1925 create_sysval_input(ctx
, SYSTEM_VALUE_LOCAL_INVOCATION_ID
, 0x7);
1927 ir3_split_dest(b
, dst
, ctx
->local_invocation_id
, 0, 3);
1929 case nir_intrinsic_load_work_group_id
:
1930 if (!ctx
->work_group_id
) {
1931 ctx
->work_group_id
=
1932 create_sysval_input(ctx
, SYSTEM_VALUE_WORK_GROUP_ID
, 0x7);
1933 ctx
->work_group_id
->regs
[0]->flags
|= IR3_REG_HIGH
;
1935 ir3_split_dest(b
, dst
, ctx
->work_group_id
, 0, 3);
1937 case nir_intrinsic_load_num_work_groups
:
1938 for (int i
= 0; i
< dest_components
; i
++) {
1939 dst
[i
] = create_driver_param(ctx
, IR3_DP_NUM_WORK_GROUPS_X
+ i
);
1942 case nir_intrinsic_load_local_group_size
:
1943 for (int i
= 0; i
< dest_components
; i
++) {
1944 dst
[i
] = create_driver_param(ctx
, IR3_DP_LOCAL_GROUP_SIZE_X
+ i
);
1947 case nir_intrinsic_discard_if
:
1948 case nir_intrinsic_discard
: {
1949 struct ir3_instruction
*cond
, *kill
;
1951 if (intr
->intrinsic
== nir_intrinsic_discard_if
) {
1952 /* conditional discard: */
1953 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1956 /* unconditional discard: */
1957 cond
= create_immed(b
, 1);
1960 /* NOTE: only cmps.*.* can write p0.x: */
1961 cond
= ir3_CMPS_S(b
, cond
, 0, create_immed(b
, 0), 0);
1962 cond
->cat2
.condition
= IR3_COND_NE
;
1964 /* condition always goes in predicate register: */
1965 cond
->regs
[0]->num
= regid(REG_P0
, 0);
1966 cond
->regs
[0]->flags
&= ~IR3_REG_SSA
;
1968 kill
= ir3_KILL(b
, cond
, 0);
1969 kill
->regs
[1]->num
= regid(REG_P0
, 0);
1970 array_insert(ctx
->ir
, ctx
->ir
->predicates
, kill
);
1972 array_insert(b
, b
->keeps
, kill
);
1973 ctx
->so
->has_kill
= true;
1978 case nir_intrinsic_cond_end_ir3
: {
1979 struct ir3_instruction
*cond
, *kill
;
1981 src
= ir3_get_src(ctx
, &intr
->src
[0]);
1984 /* NOTE: only cmps.*.* can write p0.x: */
1985 cond
= ir3_CMPS_S(b
, cond
, 0, create_immed(b
, 0), 0);
1986 cond
->cat2
.condition
= IR3_COND_NE
;
1988 /* condition always goes in predicate register: */
1989 cond
->regs
[0]->num
= regid(REG_P0
, 0);
1991 kill
= ir3_PREDT(b
, cond
, 0);
1993 kill
->barrier_class
= IR3_BARRIER_EVERYTHING
;
1994 kill
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
1996 array_insert(ctx
->ir
, ctx
->ir
->predicates
, kill
);
1997 array_insert(b
, b
->keeps
, kill
);
2001 case nir_intrinsic_load_shared_ir3
:
2002 emit_intrinsic_load_shared_ir3(ctx
, intr
, dst
);
2004 case nir_intrinsic_store_shared_ir3
:
2005 emit_intrinsic_store_shared_ir3(ctx
, intr
);
2007 case nir_intrinsic_bindless_resource_ir3
:
2008 dst
[0] = ir3_get_src(ctx
, &intr
->src
[0])[0];
2011 ir3_context_error(ctx
, "Unhandled intrinsic type: %s\n",
2012 nir_intrinsic_infos
[intr
->intrinsic
].name
);
2017 ir3_put_dst(ctx
, &intr
->dest
);
2021 emit_load_const(struct ir3_context
*ctx
, nir_load_const_instr
*instr
)
2023 struct ir3_instruction
**dst
= ir3_get_dst_ssa(ctx
, &instr
->def
,
2024 instr
->def
.num_components
);
2026 if (instr
->def
.bit_size
== 16) {
2027 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
2028 dst
[i
] = create_immed_typed(ctx
->block
,
2029 instr
->value
[i
].u16
,
2032 for (int i
= 0; i
< instr
->def
.num_components
; i
++)
2033 dst
[i
] = create_immed_typed(ctx
->block
,
2034 instr
->value
[i
].u32
,
2041 emit_undef(struct ir3_context
*ctx
, nir_ssa_undef_instr
*undef
)
2043 struct ir3_instruction
**dst
= ir3_get_dst_ssa(ctx
, &undef
->def
,
2044 undef
->def
.num_components
);
2045 type_t type
= (undef
->def
.bit_size
== 16) ? TYPE_U16
: TYPE_U32
;
2047 /* backend doesn't want undefined instructions, so just plug
2050 for (int i
= 0; i
< undef
->def
.num_components
; i
++)
2051 dst
[i
] = create_immed_typed(ctx
->block
, fui(0.0), type
);
2055 * texture fetch/sample instructions:
2059 get_tex_dest_type(nir_tex_instr
*tex
)
2063 switch (nir_alu_type_get_base_type(tex
->dest_type
)) {
2064 case nir_type_invalid
:
2065 case nir_type_float
:
2066 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_F16
: TYPE_F32
;
2069 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_S16
: TYPE_S32
;
2073 type
= nir_dest_bit_size(tex
->dest
) == 16 ? TYPE_U16
: TYPE_U32
;
2076 unreachable("bad dest_type");
2083 tex_info(nir_tex_instr
*tex
, unsigned *flagsp
, unsigned *coordsp
)
2085 unsigned coords
= glsl_get_sampler_dim_coordinate_components(tex
->sampler_dim
);
2088 /* note: would use tex->coord_components.. except txs.. also,
2089 * since array index goes after shadow ref, we don't want to
2093 flags
|= IR3_INSTR_3D
;
2095 if (tex
->is_shadow
&& tex
->op
!= nir_texop_lod
)
2096 flags
|= IR3_INSTR_S
;
2098 if (tex
->is_array
&& tex
->op
!= nir_texop_lod
)
2099 flags
|= IR3_INSTR_A
;
2105 /* Gets the sampler/texture idx as a hvec2. Which could either be dynamic
2106 * or immediate (in which case it will get lowered later to a non .s2en
2107 * version of the tex instruction which encode tex/samp as immediates:
2109 static struct tex_src_info
2110 get_tex_samp_tex_src(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2112 struct ir3_block
*b
= ctx
->block
;
2113 struct tex_src_info info
= { 0 };
2114 int texture_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_texture_handle
);
2115 int sampler_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_sampler_handle
);
2116 struct ir3_instruction
*texture
, *sampler
;
2118 if (texture_idx
>= 0 || sampler_idx
>= 0) {
2120 info
.flags
|= IR3_INSTR_B
;
2122 /* Gather information required to determine which encoding to
2123 * choose as well as for prefetch.
2125 nir_intrinsic_instr
*bindless_tex
= NULL
;
2127 if (texture_idx
>= 0) {
2128 ctx
->so
->bindless_tex
= true;
2129 bindless_tex
= ir3_bindless_resource(tex
->src
[texture_idx
].src
);
2130 assert(bindless_tex
);
2131 info
.tex_base
= nir_intrinsic_desc_set(bindless_tex
);
2132 tex_const
= nir_src_is_const(bindless_tex
->src
[0]);
2134 info
.tex_idx
= nir_src_as_uint(bindless_tex
->src
[0]);
2136 /* To simplify some of the logic below, assume the index is
2137 * constant 0 when it's not enabled.
2142 nir_intrinsic_instr
*bindless_samp
= NULL
;
2144 if (sampler_idx
>= 0) {
2145 ctx
->so
->bindless_samp
= true;
2146 bindless_samp
= ir3_bindless_resource(tex
->src
[sampler_idx
].src
);
2147 assert(bindless_samp
);
2148 info
.samp_base
= nir_intrinsic_desc_set(bindless_samp
);
2149 samp_const
= nir_src_is_const(bindless_samp
->src
[0]);
2151 info
.samp_idx
= nir_src_as_uint(bindless_samp
->src
[0]);
2157 /* Choose encoding. */
2158 if (tex_const
&& samp_const
&& info
.tex_idx
< 256 && info
.samp_idx
< 256) {
2159 if (info
.tex_idx
< 16 && info
.samp_idx
< 16 &&
2160 (!bindless_tex
|| !bindless_samp
|| info
.tex_base
== info
.samp_base
)) {
2161 /* Everything fits within the instruction */
2162 info
.base
= info
.tex_base
;
2163 info
.combined_idx
= info
.samp_idx
| (info
.tex_idx
<< 4);
2165 info
.base
= info
.tex_base
;
2166 info
.a1_val
= info
.tex_idx
<< 3 | info
.samp_base
;
2167 info
.combined_idx
= info
.samp_idx
;
2168 info
.flags
|= IR3_INSTR_A1EN
;
2170 info
.samp_tex
= NULL
;
2172 info
.flags
|= IR3_INSTR_S2EN
;
2173 /* In the indirect case, we only use a1.x to store the sampler
2174 * base if it differs from the texture base.
2176 if (!bindless_tex
|| !bindless_samp
|| info
.tex_base
== info
.samp_base
) {
2177 info
.base
= info
.tex_base
;
2179 info
.base
= info
.tex_base
;
2180 info
.a1_val
= info
.samp_base
;
2181 info
.flags
|= IR3_INSTR_A1EN
;
2184 /* Note: the indirect source is now a vec2 instead of hvec2, and
2185 * for some reason the texture and sampler are swapped.
2187 struct ir3_instruction
*texture
, *sampler
;
2190 texture
= ir3_get_src(ctx
, &tex
->src
[texture_idx
].src
)[0];
2192 texture
= create_immed(b
, 0);
2195 if (bindless_samp
) {
2196 sampler
= ir3_get_src(ctx
, &tex
->src
[sampler_idx
].src
)[0];
2198 sampler
= create_immed(b
, 0);
2200 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2206 info
.flags
|= IR3_INSTR_S2EN
;
2207 texture_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_texture_offset
);
2208 sampler_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_sampler_offset
);
2209 if (texture_idx
>= 0) {
2210 texture
= ir3_get_src(ctx
, &tex
->src
[texture_idx
].src
)[0];
2211 texture
= ir3_COV(ctx
->block
, texture
, TYPE_U32
, TYPE_U16
);
2213 /* TODO what to do for dynamic case? I guess we only need the
2214 * max index for astc srgb workaround so maybe not a problem
2215 * to worry about if we don't enable indirect samplers for
2218 ctx
->max_texture_index
= MAX2(ctx
->max_texture_index
, tex
->texture_index
);
2219 texture
= create_immed_typed(ctx
->block
, tex
->texture_index
, TYPE_U16
);
2220 info
.tex_idx
= tex
->texture_index
;
2223 if (sampler_idx
>= 0) {
2224 sampler
= ir3_get_src(ctx
, &tex
->src
[sampler_idx
].src
)[0];
2225 sampler
= ir3_COV(ctx
->block
, sampler
, TYPE_U32
, TYPE_U16
);
2227 sampler
= create_immed_typed(ctx
->block
, tex
->sampler_index
, TYPE_U16
);
2228 info
.samp_idx
= tex
->texture_index
;
2231 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2241 emit_tex(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2243 struct ir3_block
*b
= ctx
->block
;
2244 struct ir3_instruction
**dst
, *sam
, *src0
[12], *src1
[4];
2245 struct ir3_instruction
* const *coord
, * const *off
, * const *ddx
, * const *ddy
;
2246 struct ir3_instruction
*lod
, *compare
, *proj
, *sample_index
;
2247 struct tex_src_info info
= { 0 };
2248 bool has_bias
= false, has_lod
= false, has_proj
= false, has_off
= false;
2249 unsigned i
, coords
, flags
, ncomp
;
2250 unsigned nsrc0
= 0, nsrc1
= 0;
2254 ncomp
= nir_dest_num_components(tex
->dest
);
2256 coord
= off
= ddx
= ddy
= NULL
;
2257 lod
= proj
= compare
= sample_index
= NULL
;
2259 dst
= ir3_get_dst(ctx
, &tex
->dest
, ncomp
);
2261 for (unsigned i
= 0; i
< tex
->num_srcs
; i
++) {
2262 switch (tex
->src
[i
].src_type
) {
2263 case nir_tex_src_coord
:
2264 coord
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2266 case nir_tex_src_bias
:
2267 lod
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2270 case nir_tex_src_lod
:
2271 lod
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2274 case nir_tex_src_comparator
: /* shadow comparator */
2275 compare
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2277 case nir_tex_src_projector
:
2278 proj
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2281 case nir_tex_src_offset
:
2282 off
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2285 case nir_tex_src_ddx
:
2286 ddx
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2288 case nir_tex_src_ddy
:
2289 ddy
= ir3_get_src(ctx
, &tex
->src
[i
].src
);
2291 case nir_tex_src_ms_index
:
2292 sample_index
= ir3_get_src(ctx
, &tex
->src
[i
].src
)[0];
2294 case nir_tex_src_texture_offset
:
2295 case nir_tex_src_sampler_offset
:
2296 case nir_tex_src_texture_handle
:
2297 case nir_tex_src_sampler_handle
:
2298 /* handled in get_tex_samp_src() */
2301 ir3_context_error(ctx
, "Unhandled NIR tex src type: %d\n",
2302 tex
->src
[i
].src_type
);
2308 case nir_texop_tex_prefetch
:
2309 compile_assert(ctx
, !has_bias
);
2310 compile_assert(ctx
, !has_lod
);
2311 compile_assert(ctx
, !compare
);
2312 compile_assert(ctx
, !has_proj
);
2313 compile_assert(ctx
, !has_off
);
2314 compile_assert(ctx
, !ddx
);
2315 compile_assert(ctx
, !ddy
);
2316 compile_assert(ctx
, !sample_index
);
2317 compile_assert(ctx
, nir_tex_instr_src_index(tex
, nir_tex_src_texture_offset
) < 0);
2318 compile_assert(ctx
, nir_tex_instr_src_index(tex
, nir_tex_src_sampler_offset
) < 0);
2320 if (ctx
->so
->num_sampler_prefetch
< ctx
->prefetch_limit
) {
2321 opc
= OPC_META_TEX_PREFETCH
;
2322 ctx
->so
->num_sampler_prefetch
++;
2326 case nir_texop_tex
: opc
= has_lod
? OPC_SAML
: OPC_SAM
; break;
2327 case nir_texop_txb
: opc
= OPC_SAMB
; break;
2328 case nir_texop_txl
: opc
= OPC_SAML
; break;
2329 case nir_texop_txd
: opc
= OPC_SAMGQ
; break;
2330 case nir_texop_txf
: opc
= OPC_ISAML
; break;
2331 case nir_texop_lod
: opc
= OPC_GETLOD
; break;
2333 /* NOTE: a4xx might need to emulate gather w/ txf (this is
2334 * what blob does, seems gather is broken?), and a3xx did
2335 * not support it (but probably could also emulate).
2337 switch (tex
->component
) {
2338 case 0: opc
= OPC_GATHER4R
; break;
2339 case 1: opc
= OPC_GATHER4G
; break;
2340 case 2: opc
= OPC_GATHER4B
; break;
2341 case 3: opc
= OPC_GATHER4A
; break;
2344 case nir_texop_txf_ms_fb
:
2345 case nir_texop_txf_ms
: opc
= OPC_ISAMM
; break;
2347 ir3_context_error(ctx
, "Unhandled NIR tex type: %d\n", tex
->op
);
2351 tex_info(tex
, &flags
, &coords
);
2354 * lay out the first argument in the proper order:
2355 * - actual coordinates first
2356 * - shadow reference
2359 * - starting at offset 4, dpdx.xy, dpdy.xy
2361 * bias/lod go into the second arg
2364 /* insert tex coords: */
2365 for (i
= 0; i
< coords
; i
++)
2370 /* scale up integer coords for TXF based on the LOD */
2371 if (ctx
->compiler
->unminify_coords
&& (opc
== OPC_ISAML
)) {
2373 for (i
= 0; i
< coords
; i
++)
2374 src0
[i
] = ir3_SHL_B(b
, src0
[i
], 0, lod
, 0);
2378 /* hw doesn't do 1d, so we treat it as 2d with
2379 * height of 1, and patch up the y coord.
2382 src0
[nsrc0
++] = create_immed(b
, 0);
2384 src0
[nsrc0
++] = create_immed(b
, fui(0.5));
2388 if (tex
->is_shadow
&& tex
->op
!= nir_texop_lod
)
2389 src0
[nsrc0
++] = compare
;
2391 if (tex
->is_array
&& tex
->op
!= nir_texop_lod
) {
2392 struct ir3_instruction
*idx
= coord
[coords
];
2394 /* the array coord for cube arrays needs 0.5 added to it */
2395 if (ctx
->compiler
->array_index_add_half
&& !is_isam(opc
))
2396 idx
= ir3_ADD_F(b
, idx
, 0, create_immed(b
, fui(0.5)), 0);
2398 src0
[nsrc0
++] = idx
;
2402 src0
[nsrc0
++] = proj
;
2403 flags
|= IR3_INSTR_P
;
2406 /* pad to 4, then ddx/ddy: */
2407 if (tex
->op
== nir_texop_txd
) {
2409 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2410 for (i
= 0; i
< coords
; i
++)
2411 src0
[nsrc0
++] = ddx
[i
];
2413 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2414 for (i
= 0; i
< coords
; i
++)
2415 src0
[nsrc0
++] = ddy
[i
];
2417 src0
[nsrc0
++] = create_immed(b
, fui(0.0));
2420 /* NOTE a3xx (and possibly a4xx?) might be different, using isaml
2421 * with scaled x coord according to requested sample:
2423 if (opc
== OPC_ISAMM
) {
2424 if (ctx
->compiler
->txf_ms_with_isaml
) {
2425 /* the samples are laid out in x dimension as
2427 * x_ms = (x << ms) + sample_index;
2429 struct ir3_instruction
*ms
;
2430 ms
= create_immed(b
, (ctx
->samples
>> (2 * tex
->texture_index
)) & 3);
2432 src0
[0] = ir3_SHL_B(b
, src0
[0], 0, ms
, 0);
2433 src0
[0] = ir3_ADD_U(b
, src0
[0], 0, sample_index
, 0);
2437 src0
[nsrc0
++] = sample_index
;
2442 * second argument (if applicable):
2447 if (has_off
| has_lod
| has_bias
) {
2449 unsigned off_coords
= coords
;
2450 if (tex
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
)
2452 for (i
= 0; i
< off_coords
; i
++)
2453 src1
[nsrc1
++] = off
[i
];
2455 src1
[nsrc1
++] = create_immed(b
, fui(0.0));
2456 flags
|= IR3_INSTR_O
;
2459 if (has_lod
| has_bias
)
2460 src1
[nsrc1
++] = lod
;
2463 type
= get_tex_dest_type(tex
);
2465 if (opc
== OPC_GETLOD
)
2469 if (tex
->op
== nir_texop_txf_ms_fb
) {
2470 /* only expect a single txf_ms_fb per shader: */
2471 compile_assert(ctx
, !ctx
->so
->fb_read
);
2472 compile_assert(ctx
, ctx
->so
->type
== MESA_SHADER_FRAGMENT
);
2474 ctx
->so
->fb_read
= true;
2475 info
.samp_tex
= ir3_create_collect(ctx
, (struct ir3_instruction
*[]){
2476 create_immed_typed(ctx
->block
, ctx
->so
->num_samp
, TYPE_U16
),
2477 create_immed_typed(ctx
->block
, ctx
->so
->num_samp
, TYPE_U16
),
2479 info
.flags
= IR3_INSTR_S2EN
;
2481 ctx
->so
->num_samp
++;
2483 info
= get_tex_samp_tex_src(ctx
, tex
);
2486 struct ir3_instruction
*col0
= ir3_create_collect(ctx
, src0
, nsrc0
);
2487 struct ir3_instruction
*col1
= ir3_create_collect(ctx
, src1
, nsrc1
);
2489 if (opc
== OPC_META_TEX_PREFETCH
) {
2490 int idx
= nir_tex_instr_src_index(tex
, nir_tex_src_coord
);
2492 compile_assert(ctx
, tex
->src
[idx
].src
.is_ssa
);
2494 sam
= ir3_META_TEX_PREFETCH(b
);
2495 __ssa_dst(sam
)->wrmask
= MASK(ncomp
); /* dst */
2496 __ssa_src(sam
, get_barycentric(ctx
, IJ_PERSP_PIXEL
), 0);
2497 sam
->prefetch
.input_offset
=
2498 ir3_nir_coord_offset(tex
->src
[idx
].src
.ssa
);
2499 /* make sure not to add irrelevant flags like S2EN */
2500 sam
->flags
= flags
| (info
.flags
& IR3_INSTR_B
);
2501 sam
->prefetch
.tex
= info
.tex_idx
;
2502 sam
->prefetch
.samp
= info
.samp_idx
;
2503 sam
->prefetch
.tex_base
= info
.tex_base
;
2504 sam
->prefetch
.samp_base
= info
.samp_base
;
2506 info
.flags
|= flags
;
2507 sam
= emit_sam(ctx
, opc
, info
, type
, MASK(ncomp
), col0
, col1
);
2510 if ((ctx
->astc_srgb
& (1 << tex
->texture_index
)) && !nir_tex_instr_is_query(tex
)) {
2511 assert(opc
!= OPC_META_TEX_PREFETCH
);
2513 /* only need first 3 components: */
2514 sam
->regs
[0]->wrmask
= 0x7;
2515 ir3_split_dest(b
, dst
, sam
, 0, 3);
2517 /* we need to sample the alpha separately with a non-ASTC
2520 sam
= ir3_SAM(b
, opc
, type
, 0b1000, flags
| info
.flags
,
2521 info
.samp_tex
, col0
, col1
);
2523 array_insert(ctx
->ir
, ctx
->ir
->astc_srgb
, sam
);
2525 /* fixup .w component: */
2526 ir3_split_dest(b
, &dst
[3], sam
, 3, 1);
2528 /* normal (non-workaround) case: */
2529 ir3_split_dest(b
, dst
, sam
, 0, ncomp
);
2532 /* GETLOD returns results in 4.8 fixed point */
2533 if (opc
== OPC_GETLOD
) {
2534 struct ir3_instruction
*factor
= create_immed(b
, fui(1.0 / 256));
2536 compile_assert(ctx
, tex
->dest_type
== nir_type_float
);
2537 for (i
= 0; i
< 2; i
++) {
2538 dst
[i
] = ir3_MUL_F(b
, ir3_COV(b
, dst
[i
], TYPE_S32
, TYPE_F32
), 0,
2543 ir3_put_dst(ctx
, &tex
->dest
);
2547 emit_tex_info(struct ir3_context
*ctx
, nir_tex_instr
*tex
, unsigned idx
)
2549 struct ir3_block
*b
= ctx
->block
;
2550 struct ir3_instruction
**dst
, *sam
;
2551 type_t dst_type
= get_tex_dest_type(tex
);
2552 struct tex_src_info info
= get_tex_samp_tex_src(ctx
, tex
);
2554 dst
= ir3_get_dst(ctx
, &tex
->dest
, 1);
2556 sam
= emit_sam(ctx
, OPC_GETINFO
, info
, dst_type
, 1 << idx
, NULL
, NULL
);
2558 /* even though there is only one component, since it ends
2559 * up in .y/.z/.w rather than .x, we need a split_dest()
2561 ir3_split_dest(b
, dst
, sam
, idx
, 1);
2563 /* The # of levels comes from getinfo.z. We need to add 1 to it, since
2564 * the value in TEX_CONST_0 is zero-based.
2566 if (ctx
->compiler
->levels_add_one
)
2567 dst
[0] = ir3_ADD_U(b
, dst
[0], 0, create_immed(b
, 1), 0);
2569 ir3_put_dst(ctx
, &tex
->dest
);
2573 emit_tex_txs(struct ir3_context
*ctx
, nir_tex_instr
*tex
)
2575 struct ir3_block
*b
= ctx
->block
;
2576 struct ir3_instruction
**dst
, *sam
;
2577 struct ir3_instruction
*lod
;
2578 unsigned flags
, coords
;
2579 type_t dst_type
= get_tex_dest_type(tex
);
2580 struct tex_src_info info
= get_tex_samp_tex_src(ctx
, tex
);
2582 tex_info(tex
, &flags
, &coords
);
2583 info
.flags
|= flags
;
2585 /* Actually we want the number of dimensions, not coordinates. This
2586 * distinction only matters for cubes.
2588 if (tex
->sampler_dim
== GLSL_SAMPLER_DIM_CUBE
)
2591 dst
= ir3_get_dst(ctx
, &tex
->dest
, 4);
2593 int lod_idx
= nir_tex_instr_src_index(tex
, nir_tex_src_lod
);
2594 compile_assert(ctx
, lod_idx
>= 0);
2596 lod
= ir3_get_src(ctx
, &tex
->src
[lod_idx
].src
)[0];
2598 sam
= emit_sam(ctx
, OPC_GETSIZE
, info
, dst_type
, 0b1111, lod
, NULL
);
2599 ir3_split_dest(b
, dst
, sam
, 0, 4);
2601 /* Array size actually ends up in .w rather than .z. This doesn't
2602 * matter for miplevel 0, but for higher mips the value in z is
2603 * minified whereas w stays. Also, the value in TEX_CONST_3_DEPTH is
2604 * returned, which means that we have to add 1 to it for arrays.
2606 if (tex
->is_array
) {
2607 if (ctx
->compiler
->levels_add_one
) {
2608 dst
[coords
] = ir3_ADD_U(b
, dst
[3], 0, create_immed(b
, 1), 0);
2610 dst
[coords
] = ir3_MOV(b
, dst
[3], TYPE_U32
);
2614 ir3_put_dst(ctx
, &tex
->dest
);
2618 emit_jump(struct ir3_context
*ctx
, nir_jump_instr
*jump
)
2620 switch (jump
->type
) {
2621 case nir_jump_break
:
2622 case nir_jump_continue
:
2623 case nir_jump_return
:
2624 /* I *think* we can simply just ignore this, and use the
2625 * successor block link to figure out where we need to
2626 * jump to for break/continue
2630 ir3_context_error(ctx
, "Unhandled NIR jump type: %d\n", jump
->type
);
2636 emit_instr(struct ir3_context
*ctx
, nir_instr
*instr
)
2638 switch (instr
->type
) {
2639 case nir_instr_type_alu
:
2640 emit_alu(ctx
, nir_instr_as_alu(instr
));
2642 case nir_instr_type_deref
:
2643 /* ignored, handled as part of the intrinsic they are src to */
2645 case nir_instr_type_intrinsic
:
2646 emit_intrinsic(ctx
, nir_instr_as_intrinsic(instr
));
2648 case nir_instr_type_load_const
:
2649 emit_load_const(ctx
, nir_instr_as_load_const(instr
));
2651 case nir_instr_type_ssa_undef
:
2652 emit_undef(ctx
, nir_instr_as_ssa_undef(instr
));
2654 case nir_instr_type_tex
: {
2655 nir_tex_instr
*tex
= nir_instr_as_tex(instr
);
2656 /* couple tex instructions get special-cased:
2660 emit_tex_txs(ctx
, tex
);
2662 case nir_texop_query_levels
:
2663 emit_tex_info(ctx
, tex
, 2);
2665 case nir_texop_texture_samples
:
2666 emit_tex_info(ctx
, tex
, 3);
2674 case nir_instr_type_jump
:
2675 emit_jump(ctx
, nir_instr_as_jump(instr
));
2677 case nir_instr_type_phi
:
2678 /* we have converted phi webs to regs in NIR by now */
2679 ir3_context_error(ctx
, "Unexpected NIR instruction type: %d\n", instr
->type
);
2681 case nir_instr_type_call
:
2682 case nir_instr_type_parallel_copy
:
2683 ir3_context_error(ctx
, "Unhandled NIR instruction type: %d\n", instr
->type
);
2688 static struct ir3_block
*
2689 get_block(struct ir3_context
*ctx
, const nir_block
*nblock
)
2691 struct ir3_block
*block
;
2692 struct hash_entry
*hentry
;
2694 hentry
= _mesa_hash_table_search(ctx
->block_ht
, nblock
);
2696 return hentry
->data
;
2698 block
= ir3_block_create(ctx
->ir
);
2699 block
->nblock
= nblock
;
2700 _mesa_hash_table_insert(ctx
->block_ht
, nblock
, block
);
2702 set_foreach(nblock
->predecessors
, sentry
) {
2703 _mesa_set_add(block
->predecessors
, get_block(ctx
, sentry
->key
));
2710 emit_block(struct ir3_context
*ctx
, nir_block
*nblock
)
2712 struct ir3_block
*block
= get_block(ctx
, nblock
);
2714 for (int i
= 0; i
< ARRAY_SIZE(block
->successors
); i
++) {
2715 if (nblock
->successors
[i
]) {
2716 block
->successors
[i
] =
2717 get_block(ctx
, nblock
->successors
[i
]);
2722 list_addtail(&block
->node
, &ctx
->ir
->block_list
);
2724 /* re-emit addr register in each block if needed: */
2725 for (int i
= 0; i
< ARRAY_SIZE(ctx
->addr0_ht
); i
++) {
2726 _mesa_hash_table_destroy(ctx
->addr0_ht
[i
], NULL
);
2727 ctx
->addr0_ht
[i
] = NULL
;
2730 _mesa_hash_table_u64_destroy(ctx
->addr1_ht
, NULL
);
2731 ctx
->addr1_ht
= NULL
;
2733 nir_foreach_instr (instr
, nblock
) {
2734 ctx
->cur_instr
= instr
;
2735 emit_instr(ctx
, instr
);
2736 ctx
->cur_instr
= NULL
;
2741 _mesa_hash_table_clear(ctx
->sel_cond_conversions
, NULL
);
2744 static void emit_cf_list(struct ir3_context
*ctx
, struct exec_list
*list
);
2747 emit_if(struct ir3_context
*ctx
, nir_if
*nif
)
2749 struct ir3_instruction
*condition
= ir3_get_src(ctx
, &nif
->condition
)[0];
2751 ctx
->block
->condition
= ir3_get_predicate(ctx
, condition
);
2753 emit_cf_list(ctx
, &nif
->then_list
);
2754 emit_cf_list(ctx
, &nif
->else_list
);
2758 emit_loop(struct ir3_context
*ctx
, nir_loop
*nloop
)
2760 emit_cf_list(ctx
, &nloop
->body
);
2765 stack_push(struct ir3_context
*ctx
)
2768 ctx
->max_stack
= MAX2(ctx
->max_stack
, ctx
->stack
);
2772 stack_pop(struct ir3_context
*ctx
)
2774 compile_assert(ctx
, ctx
->stack
> 0);
2779 emit_cf_list(struct ir3_context
*ctx
, struct exec_list
*list
)
2781 foreach_list_typed (nir_cf_node
, node
, node
, list
) {
2782 switch (node
->type
) {
2783 case nir_cf_node_block
:
2784 emit_block(ctx
, nir_cf_node_as_block(node
));
2786 case nir_cf_node_if
:
2788 emit_if(ctx
, nir_cf_node_as_if(node
));
2791 case nir_cf_node_loop
:
2793 emit_loop(ctx
, nir_cf_node_as_loop(node
));
2796 case nir_cf_node_function
:
2797 ir3_context_error(ctx
, "TODO\n");
2803 /* emit stream-out code. At this point, the current block is the original
2804 * (nir) end block, and nir ensures that all flow control paths terminate
2805 * into the end block. We re-purpose the original end block to generate
2806 * the 'if (vtxcnt < maxvtxcnt)' condition, then append the conditional
2807 * block holding stream-out write instructions, followed by the new end
2811 * p0.x = (vtxcnt < maxvtxcnt)
2812 * // succs: blockStreamOut, blockNewEnd
2815 * // preds: blockOrigEnd
2816 * ... stream-out instructions ...
2817 * // succs: blockNewEnd
2820 * // preds: blockOrigEnd, blockStreamOut
2824 emit_stream_out(struct ir3_context
*ctx
)
2826 struct ir3
*ir
= ctx
->ir
;
2827 struct ir3_stream_output_info
*strmout
=
2828 &ctx
->so
->shader
->stream_output
;
2829 struct ir3_block
*orig_end_block
, *stream_out_block
, *new_end_block
;
2830 struct ir3_instruction
*vtxcnt
, *maxvtxcnt
, *cond
;
2831 struct ir3_instruction
*bases
[IR3_MAX_SO_BUFFERS
];
2833 /* create vtxcnt input in input block at top of shader,
2834 * so that it is seen as live over the entire duration
2837 vtxcnt
= create_sysval_input(ctx
, SYSTEM_VALUE_VERTEX_CNT
, 0x1);
2838 maxvtxcnt
= create_driver_param(ctx
, IR3_DP_VTXCNT_MAX
);
2840 /* at this point, we are at the original 'end' block,
2841 * re-purpose this block to stream-out condition, then
2842 * append stream-out block and new-end block
2844 orig_end_block
= ctx
->block
;
2846 // maybe w/ store_global intrinsic, we could do this
2847 // stuff in nir->nir pass
2849 stream_out_block
= ir3_block_create(ir
);
2850 list_addtail(&stream_out_block
->node
, &ir
->block_list
);
2852 new_end_block
= ir3_block_create(ir
);
2853 list_addtail(&new_end_block
->node
, &ir
->block_list
);
2855 orig_end_block
->successors
[0] = stream_out_block
;
2856 orig_end_block
->successors
[1] = new_end_block
;
2858 stream_out_block
->successors
[0] = new_end_block
;
2859 _mesa_set_add(stream_out_block
->predecessors
, orig_end_block
);
2861 _mesa_set_add(new_end_block
->predecessors
, orig_end_block
);
2862 _mesa_set_add(new_end_block
->predecessors
, stream_out_block
);
2864 /* setup 'if (vtxcnt < maxvtxcnt)' condition: */
2865 cond
= ir3_CMPS_S(ctx
->block
, vtxcnt
, 0, maxvtxcnt
, 0);
2866 cond
->regs
[0]->num
= regid(REG_P0
, 0);
2867 cond
->regs
[0]->flags
&= ~IR3_REG_SSA
;
2868 cond
->cat2
.condition
= IR3_COND_LT
;
2870 /* condition goes on previous block to the conditional,
2871 * since it is used to pick which of the two successor
2874 orig_end_block
->condition
= cond
;
2876 /* switch to stream_out_block to generate the stream-out
2879 ctx
->block
= stream_out_block
;
2881 /* Calculate base addresses based on vtxcnt. Instructions
2882 * generated for bases not used in following loop will be
2883 * stripped out in the backend.
2885 for (unsigned i
= 0; i
< IR3_MAX_SO_BUFFERS
; i
++) {
2886 const struct ir3_const_state
*const_state
=
2887 ir3_const_state(ctx
->so
);
2888 unsigned stride
= strmout
->stride
[i
];
2889 struct ir3_instruction
*base
, *off
;
2891 base
= create_uniform(ctx
->block
, regid(const_state
->offsets
.tfbo
, i
));
2893 /* 24-bit should be enough: */
2894 off
= ir3_MUL_U24(ctx
->block
, vtxcnt
, 0,
2895 create_immed(ctx
->block
, stride
* 4), 0);
2897 bases
[i
] = ir3_ADD_S(ctx
->block
, off
, 0, base
, 0);
2900 /* Generate the per-output store instructions: */
2901 for (unsigned i
= 0; i
< strmout
->num_outputs
; i
++) {
2902 for (unsigned j
= 0; j
< strmout
->output
[i
].num_components
; j
++) {
2903 unsigned c
= j
+ strmout
->output
[i
].start_component
;
2904 struct ir3_instruction
*base
, *out
, *stg
;
2906 base
= bases
[strmout
->output
[i
].output_buffer
];
2907 out
= ctx
->outputs
[regid(strmout
->output
[i
].register_index
, c
)];
2909 stg
= ir3_STG(ctx
->block
, base
, 0, out
, 0,
2910 create_immed(ctx
->block
, 1), 0);
2911 stg
->cat6
.type
= TYPE_U32
;
2912 stg
->cat6
.dst_offset
= (strmout
->output
[i
].dst_offset
+ j
) * 4;
2914 array_insert(ctx
->block
, ctx
->block
->keeps
, stg
);
2918 /* and finally switch to the new_end_block: */
2919 ctx
->block
= new_end_block
;
2923 emit_function(struct ir3_context
*ctx
, nir_function_impl
*impl
)
2925 nir_metadata_require(impl
, nir_metadata_block_index
);
2927 compile_assert(ctx
, ctx
->stack
== 0);
2929 emit_cf_list(ctx
, &impl
->body
);
2930 emit_block(ctx
, impl
->end_block
);
2932 compile_assert(ctx
, ctx
->stack
== 0);
2934 /* at this point, we should have a single empty block,
2935 * into which we emit the 'end' instruction.
2937 compile_assert(ctx
, list_is_empty(&ctx
->block
->instr_list
));
2939 /* If stream-out (aka transform-feedback) enabled, emit the
2940 * stream-out instructions, followed by a new empty block (into
2941 * which the 'end' instruction lands).
2943 * NOTE: it is done in this order, rather than inserting before
2944 * we emit end_block, because NIR guarantees that all blocks
2945 * flow into end_block, and that end_block has no successors.
2946 * So by re-purposing end_block as the first block of stream-
2947 * out, we guarantee that all exit paths flow into the stream-
2950 if ((ctx
->compiler
->gpu_id
< 500) &&
2951 (ctx
->so
->shader
->stream_output
.num_outputs
> 0) &&
2952 !ctx
->so
->binning_pass
) {
2953 debug_assert(ctx
->so
->type
== MESA_SHADER_VERTEX
);
2954 emit_stream_out(ctx
);
2957 /* Vertex shaders in a tessellation or geometry pipeline treat END as a
2958 * NOP and has an epilogue that writes the VS outputs to local storage, to
2959 * be read by the HS. Then it resets execution mask (chmask) and chains
2960 * to the next shader (chsh).
2962 if ((ctx
->so
->type
== MESA_SHADER_VERTEX
&&
2963 (ctx
->so
->key
.has_gs
|| ctx
->so
->key
.tessellation
)) ||
2964 (ctx
->so
->type
== MESA_SHADER_TESS_EVAL
&& ctx
->so
->key
.has_gs
)) {
2965 struct ir3_instruction
*chmask
=
2966 ir3_CHMASK(ctx
->block
);
2967 chmask
->barrier_class
= IR3_BARRIER_EVERYTHING
;
2968 chmask
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
2970 struct ir3_instruction
*chsh
=
2971 ir3_CHSH(ctx
->block
);
2972 chsh
->barrier_class
= IR3_BARRIER_EVERYTHING
;
2973 chsh
->barrier_conflict
= IR3_BARRIER_EVERYTHING
;
2975 ir3_END(ctx
->block
);
2980 setup_input(struct ir3_context
*ctx
, nir_variable
*in
)
2982 struct ir3_shader_variant
*so
= ctx
->so
;
2983 unsigned ncomp
= glsl_get_components(in
->type
);
2984 unsigned n
= in
->data
.driver_location
;
2985 unsigned frac
= in
->data
.location_frac
;
2986 unsigned slot
= in
->data
.location
;
2988 /* Inputs are loaded using ldlw or ldg for these stages. */
2989 if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
||
2990 ctx
->so
->type
== MESA_SHADER_TESS_EVAL
||
2991 ctx
->so
->type
== MESA_SHADER_GEOMETRY
)
2994 /* skip unread inputs, we could end up with (for example), unsplit
2995 * matrix/etc inputs in the case they are not read, so just silently
3001 so
->inputs
[n
].slot
= slot
;
3002 so
->inputs
[n
].compmask
|= (1 << (ncomp
+ frac
)) - 1;
3003 so
->inputs_count
= MAX2(so
->inputs_count
, n
+ 1);
3004 so
->inputs
[n
].interpolate
= in
->data
.interpolation
;
3006 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
3008 /* if any varyings have 'sample' qualifer, that triggers us
3009 * to run in per-sample mode:
3011 so
->per_samp
|= in
->data
.sample
;
3013 for (int i
= 0; i
< ncomp
; i
++) {
3014 struct ir3_instruction
*instr
= NULL
;
3015 unsigned idx
= (n
* 4) + i
+ frac
;
3017 if (slot
== VARYING_SLOT_POS
) {
3018 ir3_context_error(ctx
, "fragcoord should be a sysval!\n");
3020 /* detect the special case for front/back colors where
3021 * we need to do flat vs smooth shading depending on
3024 if (in
->data
.interpolation
== INTERP_MODE_NONE
) {
3026 case VARYING_SLOT_COL0
:
3027 case VARYING_SLOT_COL1
:
3028 case VARYING_SLOT_BFC0
:
3029 case VARYING_SLOT_BFC1
:
3030 so
->inputs
[n
].rasterflat
= true;
3037 if (ctx
->compiler
->flat_bypass
) {
3038 if ((so
->inputs
[n
].interpolate
== INTERP_MODE_FLAT
) ||
3039 (so
->inputs
[n
].rasterflat
&& ctx
->so
->key
.rasterflat
))
3040 so
->inputs
[n
].use_ldlv
= true;
3043 so
->inputs
[n
].bary
= true;
3045 instr
= create_frag_input(ctx
, so
->inputs
[n
].use_ldlv
, idx
);
3048 compile_assert(ctx
, idx
< ctx
->ninputs
);
3050 ctx
->inputs
[idx
] = instr
;
3052 } else if (ctx
->so
->type
== MESA_SHADER_VERTEX
) {
3053 struct ir3_instruction
*input
= NULL
;
3054 struct ir3_instruction
*components
[4];
3055 /* input as setup as frac=0 with "ncomp + frac" components,
3056 * this avoids getting a sparse writemask
3058 unsigned mask
= (1 << (ncomp
+ frac
)) - 1;
3060 foreach_input (in
, ctx
->ir
) {
3061 if (in
->input
.inidx
== n
) {
3068 input
= create_input(ctx
, mask
);
3069 input
->input
.inidx
= n
;
3071 /* For aliased inputs, just append to the wrmask.. ie. if we
3072 * first see a vec2 index at slot N, and then later a vec4,
3073 * the wrmask of the resulting overlapped vec2 and vec4 is 0xf
3075 * If the new input that aliases a previously processed input
3076 * sets no new bits, then just bail as there is nothing to see
3079 if (!(mask
& ~input
->regs
[0]->wrmask
))
3081 input
->regs
[0]->wrmask
|= mask
;
3084 ir3_split_dest(ctx
->block
, components
, input
, 0, ncomp
+ frac
);
3086 for (int i
= 0; i
< ncomp
+ frac
; i
++) {
3087 unsigned idx
= (n
* 4) + i
;
3088 compile_assert(ctx
, idx
< ctx
->ninputs
);
3090 /* With aliased inputs, since we add to the wrmask above, we
3091 * can end up with stale meta:split instructions in the inputs
3092 * table. This is basically harmless, since eventually they
3093 * will get swept away by DCE, but the mismatch wrmask (since
3094 * they would be using the previous wrmask before we OR'd in
3095 * more bits) angers ir3_validate. So just preemptively clean
3098 * dEQP-GLES2.functional.attribute_location.bind_aliasing.cond_vec2
3100 * Note however that split_dest() will return the src if it is
3101 * scalar, so the previous ctx->inputs[idx] could be the input
3102 * itself (which we don't want to remove)
3104 if (ctx
->inputs
[idx
] && (ctx
->inputs
[idx
] != input
)) {
3105 list_del(&ctx
->inputs
[idx
]->node
);
3108 ctx
->inputs
[idx
] = components
[i
];
3111 ir3_context_error(ctx
, "unknown shader type: %d\n", ctx
->so
->type
);
3114 /* note: this can be wrong for sparse vertex inputs, this happens with
3115 * vulkan, only a3xx/a4xx use this value for VS, so it shouldn't matter
3117 if (so
->inputs
[n
].bary
|| (ctx
->so
->type
== MESA_SHADER_VERTEX
)) {
3118 so
->total_in
+= ncomp
;
3122 /* Initially we assign non-packed inloc's for varyings, as we don't really
3123 * know up-front which components will be unused. After all the compilation
3124 * stages we scan the shader to see which components are actually used, and
3125 * re-pack the inlocs to eliminate unneeded varyings.
3128 pack_inlocs(struct ir3_context
*ctx
)
3130 struct ir3_shader_variant
*so
= ctx
->so
;
3131 uint8_t used_components
[so
->inputs_count
];
3133 memset(used_components
, 0, sizeof(used_components
));
3136 * First Step: scan shader to find which bary.f/ldlv remain:
3139 foreach_block (block
, &ctx
->ir
->block_list
) {
3140 foreach_instr (instr
, &block
->instr_list
) {
3141 if (is_input(instr
)) {
3142 unsigned inloc
= instr
->regs
[1]->iim_val
;
3143 unsigned i
= inloc
/ 4;
3144 unsigned j
= inloc
% 4;
3146 compile_assert(ctx
, instr
->regs
[1]->flags
& IR3_REG_IMMED
);
3147 compile_assert(ctx
, i
< so
->inputs_count
);
3149 used_components
[i
] |= 1 << j
;
3150 } else if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3151 for (int n
= 0; n
< 2; n
++) {
3152 unsigned inloc
= instr
->prefetch
.input_offset
+ n
;
3153 unsigned i
= inloc
/ 4;
3154 unsigned j
= inloc
% 4;
3156 compile_assert(ctx
, i
< so
->inputs_count
);
3158 used_components
[i
] |= 1 << j
;
3165 * Second Step: reassign varying inloc/slots:
3168 unsigned actual_in
= 0;
3171 for (unsigned i
= 0; i
< so
->inputs_count
; i
++) {
3172 unsigned compmask
= 0, maxcomp
= 0;
3174 so
->inputs
[i
].inloc
= inloc
;
3175 so
->inputs
[i
].bary
= false;
3177 for (unsigned j
= 0; j
< 4; j
++) {
3178 if (!(used_components
[i
] & (1 << j
)))
3181 compmask
|= (1 << j
);
3185 /* at this point, since used_components[i] mask is only
3186 * considering varyings (ie. not sysvals) we know this
3189 so
->inputs
[i
].bary
= true;
3192 if (so
->inputs
[i
].bary
) {
3194 so
->inputs
[i
].compmask
= (1 << maxcomp
) - 1;
3200 * Third Step: reassign packed inloc's:
3203 foreach_block (block
, &ctx
->ir
->block_list
) {
3204 foreach_instr (instr
, &block
->instr_list
) {
3205 if (is_input(instr
)) {
3206 unsigned inloc
= instr
->regs
[1]->iim_val
;
3207 unsigned i
= inloc
/ 4;
3208 unsigned j
= inloc
% 4;
3210 instr
->regs
[1]->iim_val
= so
->inputs
[i
].inloc
+ j
;
3211 } else if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3212 unsigned i
= instr
->prefetch
.input_offset
/ 4;
3213 unsigned j
= instr
->prefetch
.input_offset
% 4;
3214 instr
->prefetch
.input_offset
= so
->inputs
[i
].inloc
+ j
;
3221 setup_output(struct ir3_context
*ctx
, nir_variable
*out
)
3223 struct ir3_shader_variant
*so
= ctx
->so
;
3224 unsigned slots
= glsl_count_vec4_slots(out
->type
, false, false);
3225 unsigned ncomp
= glsl_get_components(glsl_without_array(out
->type
));
3226 unsigned n
= out
->data
.driver_location
;
3227 unsigned frac
= out
->data
.location_frac
;
3228 unsigned slot
= out
->data
.location
;
3230 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
3232 case FRAG_RESULT_DEPTH
:
3233 so
->writes_pos
= true;
3235 case FRAG_RESULT_COLOR
:
3238 case FRAG_RESULT_SAMPLE_MASK
:
3239 so
->writes_smask
= true;
3241 case FRAG_RESULT_STENCIL
:
3242 so
->writes_stencilref
= true;
3245 slot
+= out
->data
.index
; /* For dual-src blend */
3246 if (slot
>= FRAG_RESULT_DATA0
)
3248 ir3_context_error(ctx
, "unknown FS output name: %s\n",
3249 gl_frag_result_name(slot
));
3251 } else if (ctx
->so
->type
== MESA_SHADER_VERTEX
||
3252 ctx
->so
->type
== MESA_SHADER_TESS_EVAL
||
3253 ctx
->so
->type
== MESA_SHADER_GEOMETRY
) {
3255 case VARYING_SLOT_POS
:
3256 so
->writes_pos
= true;
3258 case VARYING_SLOT_PSIZ
:
3259 so
->writes_psize
= true;
3261 case VARYING_SLOT_PRIMITIVE_ID
:
3262 case VARYING_SLOT_LAYER
:
3263 case VARYING_SLOT_GS_VERTEX_FLAGS_IR3
:
3264 debug_assert(ctx
->so
->type
== MESA_SHADER_GEOMETRY
);
3266 case VARYING_SLOT_COL0
:
3267 case VARYING_SLOT_COL1
:
3268 case VARYING_SLOT_BFC0
:
3269 case VARYING_SLOT_BFC1
:
3270 case VARYING_SLOT_FOGC
:
3271 case VARYING_SLOT_CLIP_DIST0
:
3272 case VARYING_SLOT_CLIP_DIST1
:
3273 case VARYING_SLOT_CLIP_VERTEX
:
3276 if (slot
>= VARYING_SLOT_VAR0
)
3278 if ((VARYING_SLOT_TEX0
<= slot
) && (slot
<= VARYING_SLOT_TEX7
))
3280 ir3_context_error(ctx
, "unknown %s shader output name: %s\n",
3281 _mesa_shader_stage_to_string(ctx
->so
->type
),
3282 gl_varying_slot_name(slot
));
3284 } else if (ctx
->so
->type
== MESA_SHADER_TESS_CTRL
) {
3285 /* output lowered to buffer writes. */
3288 ir3_context_error(ctx
, "unknown shader type: %d\n", ctx
->so
->type
);
3292 so
->outputs_count
= out
->data
.driver_location
+ slots
;
3293 compile_assert(ctx
, so
->outputs_count
< ARRAY_SIZE(so
->outputs
));
3295 for (int i
= 0; i
< slots
; i
++) {
3296 int slot_base
= n
+ i
;
3297 so
->outputs
[slot_base
].slot
= slot
+ i
;
3299 for (int i
= 0; i
< ncomp
; i
++) {
3300 unsigned idx
= (slot_base
* 4) + i
+ frac
;
3301 compile_assert(ctx
, idx
< ctx
->noutputs
);
3302 ctx
->outputs
[idx
] = create_immed(ctx
->block
, fui(0.0));
3305 /* if varying packing doesn't happen, we could end up in a situation
3306 * with "holes" in the output, and since the per-generation code that
3307 * sets up varying linkage registers doesn't expect to have more than
3308 * one varying per vec4 slot, pad the holes.
3310 * Note that this should probably generate a performance warning of
3313 for (int i
= 0; i
< frac
; i
++) {
3314 unsigned idx
= (slot_base
* 4) + i
;
3315 if (!ctx
->outputs
[idx
]) {
3316 ctx
->outputs
[idx
] = create_immed(ctx
->block
, fui(0.0));
3323 emit_instructions(struct ir3_context
*ctx
)
3325 nir_function_impl
*fxn
= nir_shader_get_entrypoint(ctx
->s
);
3327 ctx
->ninputs
= ctx
->s
->num_inputs
* 4;
3328 ctx
->noutputs
= ctx
->s
->num_outputs
* 4;
3329 ctx
->inputs
= rzalloc_array(ctx
, struct ir3_instruction
*, ctx
->ninputs
);
3330 ctx
->outputs
= rzalloc_array(ctx
, struct ir3_instruction
*, ctx
->noutputs
);
3332 ctx
->ir
= ir3_create(ctx
->compiler
, ctx
->so
);
3334 /* Create inputs in first block: */
3335 ctx
->block
= get_block(ctx
, nir_start_block(fxn
));
3336 ctx
->in_block
= ctx
->block
;
3338 /* for fragment shader, the vcoord input register is used as the
3339 * base for bary.f varying fetch instrs:
3341 * TODO defer creating ctx->ij_pixel and corresponding sysvals
3342 * until emit_intrinsic when we know they are actually needed.
3343 * For now, we defer creating ctx->ij_centroid, etc, since we
3344 * only need ij_pixel for "old style" varying inputs (ie.
3347 if (ctx
->so
->type
== MESA_SHADER_FRAGMENT
) {
3348 ctx
->ij
[IJ_PERSP_PIXEL
] = create_input(ctx
, 0x3);
3352 nir_foreach_shader_in_variable (var
, ctx
->s
) {
3353 setup_input(ctx
, var
);
3356 /* Defer add_sysval_input() stuff until after setup_inputs(),
3357 * because sysvals need to be appended after varyings:
3359 if (ctx
->ij
[IJ_PERSP_PIXEL
]) {
3360 add_sysval_input_compmask(ctx
, SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
,
3361 0x3, ctx
->ij
[IJ_PERSP_PIXEL
]);
3365 /* Tesselation shaders always need primitive ID for indexing the
3366 * BO. Geometry shaders don't always need it but when they do it has be
3367 * delivered and unclobbered in the VS. To make things easy, we always
3368 * make room for it in VS/DS.
3370 bool has_tess
= ctx
->so
->key
.tessellation
!= IR3_TESS_NONE
;
3371 bool has_gs
= ctx
->so
->key
.has_gs
;
3372 switch (ctx
->so
->type
) {
3373 case MESA_SHADER_VERTEX
:
3375 ctx
->tcs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_TCS_HEADER_IR3
, 0x1);
3376 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3377 } else if (has_gs
) {
3378 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3379 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3382 case MESA_SHADER_TESS_CTRL
:
3383 ctx
->tcs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_TCS_HEADER_IR3
, 0x1);
3384 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3386 case MESA_SHADER_TESS_EVAL
:
3388 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3389 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3391 case MESA_SHADER_GEOMETRY
:
3392 ctx
->gs_header
= create_sysval_input(ctx
, SYSTEM_VALUE_GS_HEADER_IR3
, 0x1);
3393 ctx
->primitive_id
= create_sysval_input(ctx
, SYSTEM_VALUE_PRIMITIVE_ID
, 0x1);
3399 /* Setup outputs: */
3400 nir_foreach_shader_out_variable (var
, ctx
->s
) {
3401 setup_output(ctx
, var
);
3404 /* Find # of samplers. Just assume that we'll be reading from images.. if
3405 * it is write-only we don't have to count it, but after lowering derefs
3406 * is too late to compact indices for that.
3408 ctx
->so
->num_samp
= util_last_bit(ctx
->s
->info
.textures_used
) + ctx
->s
->info
.num_images
;
3410 /* NOTE: need to do something more clever when we support >1 fxn */
3411 nir_foreach_register (reg
, &fxn
->registers
) {
3412 ir3_declare_array(ctx
, reg
);
3414 /* And emit the body: */
3416 emit_function(ctx
, fxn
);
3419 /* Fixup tex sampler state for astc/srgb workaround instructions. We
3420 * need to assign the tex state indexes for these after we know the
3424 fixup_astc_srgb(struct ir3_context
*ctx
)
3426 struct ir3_shader_variant
*so
= ctx
->so
;
3427 /* indexed by original tex idx, value is newly assigned alpha sampler
3428 * state tex idx. Zero is invalid since there is at least one sampler
3431 unsigned alt_tex_state
[16] = {0};
3432 unsigned tex_idx
= ctx
->max_texture_index
+ 1;
3435 so
->astc_srgb
.base
= tex_idx
;
3437 for (unsigned i
= 0; i
< ctx
->ir
->astc_srgb_count
; i
++) {
3438 struct ir3_instruction
*sam
= ctx
->ir
->astc_srgb
[i
];
3440 compile_assert(ctx
, sam
->cat5
.tex
< ARRAY_SIZE(alt_tex_state
));
3442 if (alt_tex_state
[sam
->cat5
.tex
] == 0) {
3443 /* assign new alternate/alpha tex state slot: */
3444 alt_tex_state
[sam
->cat5
.tex
] = tex_idx
++;
3445 so
->astc_srgb
.orig_idx
[idx
++] = sam
->cat5
.tex
;
3446 so
->astc_srgb
.count
++;
3449 sam
->cat5
.tex
= alt_tex_state
[sam
->cat5
.tex
];
3454 fixup_binning_pass(struct ir3_context
*ctx
)
3456 struct ir3_shader_variant
*so
= ctx
->so
;
3457 struct ir3
*ir
= ctx
->ir
;
3460 /* first pass, remove unused outputs from the IR level outputs: */
3461 for (i
= 0, j
= 0; i
< ir
->outputs_count
; i
++) {
3462 struct ir3_instruction
*out
= ir
->outputs
[i
];
3463 assert(out
->opc
== OPC_META_COLLECT
);
3464 unsigned outidx
= out
->collect
.outidx
;
3465 unsigned slot
= so
->outputs
[outidx
].slot
;
3467 /* throw away everything but first position/psize */
3468 if ((slot
== VARYING_SLOT_POS
) || (slot
== VARYING_SLOT_PSIZ
)) {
3469 ir
->outputs
[j
] = ir
->outputs
[i
];
3473 ir
->outputs_count
= j
;
3475 /* second pass, cleanup the unused slots in ir3_shader_variant::outputs
3478 for (i
= 0, j
= 0; i
< so
->outputs_count
; i
++) {
3479 unsigned slot
= so
->outputs
[i
].slot
;
3481 /* throw away everything but first position/psize */
3482 if ((slot
== VARYING_SLOT_POS
) || (slot
== VARYING_SLOT_PSIZ
)) {
3483 so
->outputs
[j
] = so
->outputs
[i
];
3485 /* fixup outidx to point to new output table entry: */
3486 foreach_output (out
, ir
) {
3487 if (out
->collect
.outidx
== i
) {
3488 out
->collect
.outidx
= j
;
3496 so
->outputs_count
= j
;
3500 collect_tex_prefetches(struct ir3_context
*ctx
, struct ir3
*ir
)
3504 /* Collect sampling instructions eligible for pre-dispatch. */
3505 foreach_block (block
, &ir
->block_list
) {
3506 foreach_instr_safe (instr
, &block
->instr_list
) {
3507 if (instr
->opc
== OPC_META_TEX_PREFETCH
) {
3508 assert(idx
< ARRAY_SIZE(ctx
->so
->sampler_prefetch
));
3509 struct ir3_sampler_prefetch
*fetch
=
3510 &ctx
->so
->sampler_prefetch
[idx
];
3513 if (instr
->flags
& IR3_INSTR_B
) {
3514 fetch
->cmd
= IR3_SAMPLER_BINDLESS_PREFETCH_CMD
;
3515 /* In bindless mode, the index is actually the base */
3516 fetch
->tex_id
= instr
->prefetch
.tex_base
;
3517 fetch
->samp_id
= instr
->prefetch
.samp_base
;
3518 fetch
->tex_bindless_id
= instr
->prefetch
.tex
;
3519 fetch
->samp_bindless_id
= instr
->prefetch
.samp
;
3521 fetch
->cmd
= IR3_SAMPLER_PREFETCH_CMD
;
3522 fetch
->tex_id
= instr
->prefetch
.tex
;
3523 fetch
->samp_id
= instr
->prefetch
.samp
;
3525 fetch
->wrmask
= instr
->regs
[0]->wrmask
;
3526 fetch
->dst
= instr
->regs
[0]->num
;
3527 fetch
->src
= instr
->prefetch
.input_offset
;
3529 /* These are the limits on a5xx/a6xx, we might need to
3530 * revisit if SP_FS_PREFETCH[n] changes on later gens:
3532 assert(fetch
->dst
<= 0x3f);
3533 assert(fetch
->tex_id
<= 0x1f);
3534 assert(fetch
->samp_id
< 0xf);
3537 MAX2(ctx
->so
->total_in
, instr
->prefetch
.input_offset
+ 2);
3539 fetch
->half_precision
= !!(instr
->regs
[0]->flags
& IR3_REG_HALF
);
3541 /* Remove the prefetch placeholder instruction: */
3542 list_delinit(&instr
->node
);
3549 ir3_compile_shader_nir(struct ir3_compiler
*compiler
,
3550 struct ir3_shader_variant
*so
)
3552 struct ir3_context
*ctx
;
3554 int ret
= 0, max_bary
;
3559 ctx
= ir3_context_init(compiler
, so
);
3561 DBG("INIT failed!");
3566 emit_instructions(ctx
);
3569 DBG("EMIT failed!");
3574 ir
= so
->ir
= ctx
->ir
;
3576 assert((ctx
->noutputs
% 4) == 0);
3578 /* Setup IR level outputs, which are "collects" that gather
3579 * the scalar components of outputs.
3581 for (unsigned i
= 0; i
< ctx
->noutputs
; i
+= 4) {
3583 /* figure out the # of components written:
3585 * TODO do we need to handle holes, ie. if .x and .z
3586 * components written, but .y component not written?
3588 for (unsigned j
= 0; j
< 4; j
++) {
3589 if (!ctx
->outputs
[i
+ j
])
3594 /* Note that in some stages, like TCS, store_output is
3595 * lowered to memory writes, so no components of the
3596 * are "written" from the PoV of traditional store-
3597 * output instructions:
3602 struct ir3_instruction
*out
=
3603 ir3_create_collect(ctx
, &ctx
->outputs
[i
], ncomp
);
3606 assert(outidx
< so
->outputs_count
);
3608 /* stash index into so->outputs[] so we can map the
3609 * output back to slot/etc later:
3611 out
->collect
.outidx
= outidx
;
3613 array_insert(ir
, ir
->outputs
, out
);
3616 /* Set up the gs header as an output for the vertex shader so it won't
3617 * clobber it for the tess ctrl shader.
3619 * TODO this could probably be done more cleanly in a nir pass.
3621 if (ctx
->so
->type
== MESA_SHADER_VERTEX
||
3622 (ctx
->so
->key
.has_gs
&& ctx
->so
->type
== MESA_SHADER_TESS_EVAL
)) {
3623 if (ctx
->primitive_id
) {
3624 unsigned n
= so
->outputs_count
++;
3625 so
->outputs
[n
].slot
= VARYING_SLOT_PRIMITIVE_ID
;
3627 struct ir3_instruction
*out
=
3628 ir3_create_collect(ctx
, &ctx
->primitive_id
, 1);
3629 out
->collect
.outidx
= n
;
3630 array_insert(ir
, ir
->outputs
, out
);
3633 if (ctx
->gs_header
) {
3634 unsigned n
= so
->outputs_count
++;
3635 so
->outputs
[n
].slot
= VARYING_SLOT_GS_HEADER_IR3
;
3636 struct ir3_instruction
*out
=
3637 ir3_create_collect(ctx
, &ctx
->gs_header
, 1);
3638 out
->collect
.outidx
= n
;
3639 array_insert(ir
, ir
->outputs
, out
);
3642 if (ctx
->tcs_header
) {
3643 unsigned n
= so
->outputs_count
++;
3644 so
->outputs
[n
].slot
= VARYING_SLOT_TCS_HEADER_IR3
;
3645 struct ir3_instruction
*out
=
3646 ir3_create_collect(ctx
, &ctx
->tcs_header
, 1);
3647 out
->collect
.outidx
= n
;
3648 array_insert(ir
, ir
->outputs
, out
);
3652 /* for a6xx+, binning and draw pass VS use same VBO state, so we
3653 * need to make sure not to remove any inputs that are used by
3654 * the nonbinning VS.
3656 if (ctx
->compiler
->gpu_id
>= 600 && so
->binning_pass
&&
3657 so
->type
== MESA_SHADER_VERTEX
) {
3658 for (int i
= 0; i
< ctx
->ninputs
; i
++) {
3659 struct ir3_instruction
*in
= ctx
->inputs
[i
];
3667 debug_assert(n
< so
->nonbinning
->inputs_count
);
3669 if (so
->nonbinning
->inputs
[n
].sysval
)
3672 /* be sure to keep inputs, even if only used in VS */
3673 if (so
->nonbinning
->inputs
[n
].compmask
& (1 << c
))
3674 array_insert(in
->block
, in
->block
->keeps
, in
);
3678 /* at this point, for binning pass, throw away unneeded outputs: */
3679 if (so
->binning_pass
&& (ctx
->compiler
->gpu_id
< 600))
3680 fixup_binning_pass(ctx
);
3682 ir3_debug_print(ir
, "AFTER: nir->ir3");
3688 progress
|= IR3_PASS(ir
, ir3_cf
);
3689 progress
|= IR3_PASS(ir
, ir3_cp
, so
);
3690 progress
|= IR3_PASS(ir
, ir3_dce
, so
);
3693 /* at this point, for binning pass, throw away unneeded outputs:
3694 * Note that for a6xx and later, we do this after ir3_cp to ensure
3695 * that the uniform/constant layout for BS and VS matches, so that
3696 * we can re-use same VS_CONST state group.
3698 if (so
->binning_pass
&& (ctx
->compiler
->gpu_id
>= 600)) {
3699 fixup_binning_pass(ctx
);
3700 /* cleanup the result of removing unneeded outputs: */
3701 while (IR3_PASS(ir
, ir3_dce
, so
)) {}
3704 IR3_PASS(ir
, ir3_sched_add_deps
);
3706 /* Group left/right neighbors, inserting mov's where needed to
3709 IR3_PASS(ir
, ir3_group
);
3711 /* At this point, all the dead code should be long gone: */
3712 assert(!IR3_PASS(ir
, ir3_dce
, so
));
3714 ret
= ir3_sched(ir
);
3716 DBG("SCHED failed!");
3720 ir3_debug_print(ir
, "AFTER: ir3_sched");
3722 if (IR3_PASS(ir
, ir3_cp_postsched
)) {
3723 /* cleanup the result of removing unneeded mov's: */
3724 while (IR3_PASS(ir
, ir3_dce
, so
)) {}
3727 /* Pre-assign VS inputs on a6xx+ binning pass shader, to align
3728 * with draw pass VS, so binning and draw pass can both use the
3731 * Note that VS inputs are expected to be full precision.
3733 bool pre_assign_inputs
= (ir
->compiler
->gpu_id
>= 600) &&
3734 (ir
->type
== MESA_SHADER_VERTEX
) &&
3737 if (pre_assign_inputs
) {
3738 for (unsigned i
= 0; i
< ctx
->ninputs
; i
++) {
3739 struct ir3_instruction
*instr
= ctx
->inputs
[i
];
3746 unsigned regid
= so
->nonbinning
->inputs
[n
].regid
+ c
;
3748 instr
->regs
[0]->num
= regid
;
3751 ret
= ir3_ra(so
, ctx
->inputs
, ctx
->ninputs
);
3752 } else if (ctx
->tcs_header
) {
3753 /* We need to have these values in the same registers between VS and TCS
3754 * since the VS chains to TCS and doesn't get the sysvals redelivered.
3757 ctx
->tcs_header
->regs
[0]->num
= regid(0, 0);
3758 ctx
->primitive_id
->regs
[0]->num
= regid(0, 1);
3759 struct ir3_instruction
*precolor
[] = { ctx
->tcs_header
, ctx
->primitive_id
};
3760 ret
= ir3_ra(so
, precolor
, ARRAY_SIZE(precolor
));
3761 } else if (ctx
->gs_header
) {
3762 /* We need to have these values in the same registers between producer
3763 * (VS or DS) and GS since the producer chains to GS and doesn't get
3764 * the sysvals redelivered.
3767 ctx
->gs_header
->regs
[0]->num
= regid(0, 0);
3768 ctx
->primitive_id
->regs
[0]->num
= regid(0, 1);
3769 struct ir3_instruction
*precolor
[] = { ctx
->gs_header
, ctx
->primitive_id
};
3770 ret
= ir3_ra(so
, precolor
, ARRAY_SIZE(precolor
));
3771 } else if (so
->num_sampler_prefetch
) {
3772 assert(so
->type
== MESA_SHADER_FRAGMENT
);
3773 struct ir3_instruction
*precolor
[2];
3776 foreach_input (instr
, ir
) {
3777 if (instr
->input
.sysval
!= SYSTEM_VALUE_BARYCENTRIC_PERSP_PIXEL
)
3780 assert(idx
< ARRAY_SIZE(precolor
));
3782 precolor
[idx
] = instr
;
3783 instr
->regs
[0]->num
= idx
;
3787 ret
= ir3_ra(so
, precolor
, idx
);
3789 ret
= ir3_ra(so
, NULL
, 0);
3797 IR3_PASS(ir
, ir3_postsched
, so
);
3799 if (compiler
->gpu_id
>= 600) {
3800 IR3_PASS(ir
, ir3_a6xx_fixup_atomic_dests
, so
);
3803 if (so
->type
== MESA_SHADER_FRAGMENT
)
3807 * Fixup inputs/outputs to point to the actual registers assigned:
3809 * 1) initialize to r63.x (invalid/unused)
3810 * 2) iterate IR level inputs/outputs and update the variants
3811 * inputs/outputs table based on the assigned registers for
3812 * the remaining inputs/outputs.
3815 for (unsigned i
= 0; i
< so
->inputs_count
; i
++)
3816 so
->inputs
[i
].regid
= INVALID_REG
;
3817 for (unsigned i
= 0; i
< so
->outputs_count
; i
++)
3818 so
->outputs
[i
].regid
= INVALID_REG
;
3820 foreach_output (out
, ir
) {
3821 assert(out
->opc
== OPC_META_COLLECT
);
3822 unsigned outidx
= out
->collect
.outidx
;
3824 so
->outputs
[outidx
].regid
= out
->regs
[0]->num
;
3825 so
->outputs
[outidx
].half
= !!(out
->regs
[0]->flags
& IR3_REG_HALF
);
3828 foreach_input (in
, ir
) {
3829 assert(in
->opc
== OPC_META_INPUT
);
3830 unsigned inidx
= in
->input
.inidx
;
3832 if (pre_assign_inputs
&& !so
->inputs
[inidx
].sysval
) {
3833 if (VALIDREG(so
->nonbinning
->inputs
[inidx
].regid
)) {
3834 compile_assert(ctx
, in
->regs
[0]->num
==
3835 so
->nonbinning
->inputs
[inidx
].regid
);
3836 compile_assert(ctx
, !!(in
->regs
[0]->flags
& IR3_REG_HALF
) ==
3837 so
->nonbinning
->inputs
[inidx
].half
);
3839 so
->inputs
[inidx
].regid
= so
->nonbinning
->inputs
[inidx
].regid
;
3840 so
->inputs
[inidx
].half
= so
->nonbinning
->inputs
[inidx
].half
;
3842 so
->inputs
[inidx
].regid
= in
->regs
[0]->num
;
3843 so
->inputs
[inidx
].half
= !!(in
->regs
[0]->flags
& IR3_REG_HALF
);
3848 fixup_astc_srgb(ctx
);
3850 /* We need to do legalize after (for frag shader's) the "bary.f"
3851 * offsets (inloc) have been assigned.
3853 IR3_PASS(ir
, ir3_legalize
, so
, &max_bary
);
3855 /* Set (ss)(sy) on first TCS and GEOMETRY instructions, since we don't
3856 * know what we might have to wait on when coming in from VS chsh.
3858 if (so
->type
== MESA_SHADER_TESS_CTRL
||
3859 so
->type
== MESA_SHADER_GEOMETRY
) {
3860 foreach_block (block
, &ir
->block_list
) {
3861 foreach_instr (instr
, &block
->instr_list
) {
3862 instr
->flags
|= IR3_INSTR_SS
| IR3_INSTR_SY
;
3868 so
->branchstack
= ctx
->max_stack
;
3870 /* Note that actual_in counts inputs that are not bary.f'd for FS: */
3871 if (so
->type
== MESA_SHADER_FRAGMENT
)
3872 so
->total_in
= max_bary
+ 1;
3874 /* Collect sampling instructions eligible for pre-dispatch. */
3875 collect_tex_prefetches(ctx
, ir
);
3877 if (so
->type
== MESA_SHADER_FRAGMENT
&&
3878 ctx
->s
->info
.fs
.needs_helper_invocations
)
3879 so
->need_pixlod
= true;
3884 ir3_destroy(so
->ir
);
3887 ir3_context_free(ctx
);