2 * Copyright 2012 Advanced Micro Devices, Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
24 * Tom Stellard <thomas.stellard@amd.com>
25 * Michel Dänzer <michel.daenzer@amd.com>
26 * Christian König <christian.koenig@amd.com>
29 #include "gallivm/lp_bld_const.h"
30 #include "gallivm/lp_bld_gather.h"
31 #include "gallivm/lp_bld_intr.h"
32 #include "gallivm/lp_bld_logic.h"
33 #include "gallivm/lp_bld_arit.h"
34 #include "gallivm/lp_bld_bitarit.h"
35 #include "gallivm/lp_bld_flow.h"
36 #include "radeon/r600_cs.h"
37 #include "radeon/radeon_llvm.h"
38 #include "radeon/radeon_elf_util.h"
39 #include "radeon/radeon_llvm_emit.h"
40 #include "util/u_memory.h"
41 #include "util/u_pstipple.h"
42 #include "util/u_string.h"
43 #include "tgsi/tgsi_parse.h"
44 #include "tgsi/tgsi_build.h"
45 #include "tgsi/tgsi_util.h"
46 #include "tgsi/tgsi_dump.h"
49 #include "si_shader.h"
54 static const char *scratch_rsrc_dword0_symbol
=
55 "SCRATCH_RSRC_DWORD0";
57 static const char *scratch_rsrc_dword1_symbol
=
58 "SCRATCH_RSRC_DWORD1";
60 struct si_shader_output_values
62 LLVMValueRef values
[4];
67 struct si_shader_context
69 struct radeon_llvm_context radeon_bld
;
70 struct si_shader
*shader
;
71 struct si_screen
*screen
;
73 unsigned type
; /* PIPE_SHADER_* specifies the type of shader. */
74 bool is_gs_copy_shader
;
76 /* Whether to generate the optimized shader variant compiled as a whole
77 * (without a prolog and epilog)
81 int param_streamout_config
;
82 int param_streamout_write_index
;
83 int param_streamout_offset
[4];
85 int param_rel_auto_id
;
87 int param_instance_id
;
88 int param_vertex_index0
;
91 int param_tes_rel_patch_id
;
92 int param_tes_patch_id
;
93 int param_es2gs_offset
;
96 /* Sets a bit if the dynamic HS control word was 0x80000000. The bit is
97 * 0x800000 for VS, 0x1 for ES.
99 int param_tess_offchip
;
101 LLVMTargetMachineRef tm
;
103 unsigned uniform_md_kind
;
104 LLVMValueRef const_md
;
105 LLVMValueRef empty_md
;
106 LLVMValueRef const_buffers
[SI_NUM_CONST_BUFFERS
];
108 LLVMValueRef
*constants
[SI_NUM_CONST_BUFFERS
];
109 LLVMValueRef shader_buffers
[SI_NUM_SHADER_BUFFERS
];
110 LLVMValueRef sampler_views
[SI_NUM_SAMPLERS
];
111 LLVMValueRef sampler_states
[SI_NUM_SAMPLERS
];
112 LLVMValueRef fmasks
[SI_NUM_SAMPLERS
];
113 LLVMValueRef images
[SI_NUM_IMAGES
];
114 LLVMValueRef so_buffers
[4];
115 LLVMValueRef esgs_ring
;
116 LLVMValueRef gsvs_ring
[4];
117 LLVMValueRef gs_next_vertex
[4];
118 LLVMValueRef return_value
;
133 LLVMValueRef shared_memory
;
136 static struct si_shader_context
*si_shader_context(
137 struct lp_build_tgsi_context
*bld_base
)
139 return (struct si_shader_context
*)bld_base
;
142 static void si_init_shader_ctx(struct si_shader_context
*ctx
,
143 struct si_screen
*sscreen
,
144 struct si_shader
*shader
,
145 LLVMTargetMachineRef tm
);
147 static void si_llvm_emit_barrier(const struct lp_build_tgsi_action
*action
,
148 struct lp_build_tgsi_context
*bld_base
,
149 struct lp_build_emit_data
*emit_data
);
151 /* Ideally pass the sample mask input to the PS epilog as v13, which
152 * is its usual location, so that the shader doesn't have to add v_mov.
154 #define PS_EPILOG_SAMPLEMASK_MIN_LOC 13
156 /* The VS location of the PrimitiveID input is the same in the epilog,
157 * so that the main shader part doesn't have to move it.
159 #define VS_EPILOG_PRIMID_LOC 2
161 #define PERSPECTIVE_BASE 0
162 #define LINEAR_BASE 9
164 #define SAMPLE_OFFSET 0
165 #define CENTER_OFFSET 2
166 #define CENTROID_OFSET 4
168 #define USE_SGPR_MAX_SUFFIX_LEN 5
169 #define CONST_ADDR_SPACE 2
170 #define LOCAL_ADDR_SPACE 3
171 #define USER_SGPR_ADDR_SPACE 8
175 #define SENDMSG_GS_DONE 3
177 #define SENDMSG_GS_OP_NOP (0 << 4)
178 #define SENDMSG_GS_OP_CUT (1 << 4)
179 #define SENDMSG_GS_OP_EMIT (2 << 4)
180 #define SENDMSG_GS_OP_EMIT_CUT (3 << 4)
183 * Returns a unique index for a semantic name and index. The index must be
184 * less than 64, so that a 64-bit bitmask of used inputs or outputs can be
187 unsigned si_shader_io_get_unique_index(unsigned semantic_name
, unsigned index
)
189 switch (semantic_name
) {
190 case TGSI_SEMANTIC_POSITION
:
192 case TGSI_SEMANTIC_PSIZE
:
194 case TGSI_SEMANTIC_CLIPDIST
:
197 case TGSI_SEMANTIC_GENERIC
:
201 /* same explanation as in the default statement,
202 * the only user hitting this is st/nine.
206 /* patch indices are completely separate and thus start from 0 */
207 case TGSI_SEMANTIC_TESSOUTER
:
209 case TGSI_SEMANTIC_TESSINNER
:
211 case TGSI_SEMANTIC_PATCH
:
215 /* Don't fail here. The result of this function is only used
216 * for LS, TCS, TES, and GS, where legacy GL semantics can't
217 * occur, but this function is called for all vertex shaders
218 * before it's known whether LS will be compiled or not.
225 * Get the value of a shader input parameter and extract a bitfield.
227 static LLVMValueRef
unpack_param(struct si_shader_context
*ctx
,
228 unsigned param
, unsigned rshift
,
231 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
232 LLVMValueRef value
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
235 if (LLVMGetTypeKind(LLVMTypeOf(value
)) == LLVMFloatTypeKind
)
236 value
= bitcast(&ctx
->radeon_bld
.soa
.bld_base
,
237 TGSI_TYPE_UNSIGNED
, value
);
240 value
= LLVMBuildLShr(gallivm
->builder
, value
,
241 lp_build_const_int32(gallivm
, rshift
), "");
243 if (rshift
+ bitwidth
< 32) {
244 unsigned mask
= (1 << bitwidth
) - 1;
245 value
= LLVMBuildAnd(gallivm
->builder
, value
,
246 lp_build_const_int32(gallivm
, mask
), "");
252 static LLVMValueRef
get_rel_patch_id(struct si_shader_context
*ctx
)
255 case PIPE_SHADER_TESS_CTRL
:
256 return unpack_param(ctx
, SI_PARAM_REL_IDS
, 0, 8);
258 case PIPE_SHADER_TESS_EVAL
:
259 return LLVMGetParam(ctx
->radeon_bld
.main_fn
,
260 ctx
->param_tes_rel_patch_id
);
268 /* Tessellation shaders pass outputs to the next shader using LDS.
270 * LS outputs = TCS inputs
271 * TCS outputs = TES inputs
274 * - TCS inputs for patch 0
275 * - TCS inputs for patch 1
276 * - TCS inputs for patch 2 = get_tcs_in_current_patch_offset (if RelPatchID==2)
278 * - TCS outputs for patch 0 = get_tcs_out_patch0_offset
279 * - Per-patch TCS outputs for patch 0 = get_tcs_out_patch0_patch_data_offset
280 * - TCS outputs for patch 1
281 * - Per-patch TCS outputs for patch 1
282 * - TCS outputs for patch 2 = get_tcs_out_current_patch_offset (if RelPatchID==2)
283 * - Per-patch TCS outputs for patch 2 = get_tcs_out_current_patch_data_offset (if RelPatchID==2)
286 * All three shaders VS(LS), TCS, TES share the same LDS space.
290 get_tcs_in_patch_stride(struct si_shader_context
*ctx
)
292 if (ctx
->type
== PIPE_SHADER_VERTEX
)
293 return unpack_param(ctx
, SI_PARAM_LS_OUT_LAYOUT
, 0, 13);
294 else if (ctx
->type
== PIPE_SHADER_TESS_CTRL
)
295 return unpack_param(ctx
, SI_PARAM_TCS_IN_LAYOUT
, 0, 13);
303 get_tcs_out_patch_stride(struct si_shader_context
*ctx
)
305 return unpack_param(ctx
, SI_PARAM_TCS_OUT_LAYOUT
, 0, 13);
309 get_tcs_out_patch0_offset(struct si_shader_context
*ctx
)
311 return lp_build_mul_imm(&ctx
->radeon_bld
.soa
.bld_base
.uint_bld
,
313 SI_PARAM_TCS_OUT_OFFSETS
,
319 get_tcs_out_patch0_patch_data_offset(struct si_shader_context
*ctx
)
321 return lp_build_mul_imm(&ctx
->radeon_bld
.soa
.bld_base
.uint_bld
,
323 SI_PARAM_TCS_OUT_OFFSETS
,
329 get_tcs_in_current_patch_offset(struct si_shader_context
*ctx
)
331 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
332 LLVMValueRef patch_stride
= get_tcs_in_patch_stride(ctx
);
333 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
335 return LLVMBuildMul(gallivm
->builder
, patch_stride
, rel_patch_id
, "");
339 get_tcs_out_current_patch_offset(struct si_shader_context
*ctx
)
341 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
342 LLVMValueRef patch0_offset
= get_tcs_out_patch0_offset(ctx
);
343 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
344 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
346 return LLVMBuildAdd(gallivm
->builder
, patch0_offset
,
347 LLVMBuildMul(gallivm
->builder
, patch_stride
,
353 get_tcs_out_current_patch_data_offset(struct si_shader_context
*ctx
)
355 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
356 LLVMValueRef patch0_patch_data_offset
=
357 get_tcs_out_patch0_patch_data_offset(ctx
);
358 LLVMValueRef patch_stride
= get_tcs_out_patch_stride(ctx
);
359 LLVMValueRef rel_patch_id
= get_rel_patch_id(ctx
);
361 return LLVMBuildAdd(gallivm
->builder
, patch0_patch_data_offset
,
362 LLVMBuildMul(gallivm
->builder
, patch_stride
,
367 static void build_indexed_store(struct si_shader_context
*ctx
,
368 LLVMValueRef base_ptr
, LLVMValueRef index
,
371 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
372 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
373 LLVMValueRef indices
[2], pointer
;
375 indices
[0] = bld_base
->uint_bld
.zero
;
378 pointer
= LLVMBuildGEP(gallivm
->builder
, base_ptr
, indices
, 2, "");
379 LLVMBuildStore(gallivm
->builder
, value
, pointer
);
383 * Build an LLVM bytecode indexed load using LLVMBuildGEP + LLVMBuildLoad.
384 * It's equivalent to doing a load from &base_ptr[index].
386 * \param base_ptr Where the array starts.
387 * \param index The element index into the array.
388 * \param uniform Whether the base_ptr and index can be assumed to be
389 * dynamically uniform
391 static LLVMValueRef
build_indexed_load(struct si_shader_context
*ctx
,
392 LLVMValueRef base_ptr
, LLVMValueRef index
,
395 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
396 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
397 LLVMValueRef indices
[2], pointer
;
399 indices
[0] = bld_base
->uint_bld
.zero
;
402 pointer
= LLVMBuildGEP(gallivm
->builder
, base_ptr
, indices
, 2, "");
404 LLVMSetMetadata(pointer
, ctx
->uniform_md_kind
, ctx
->empty_md
);
405 return LLVMBuildLoad(gallivm
->builder
, pointer
, "");
409 * Do a load from &base_ptr[index], but also add a flag that it's loading
410 * a constant from a dynamically uniform index.
412 static LLVMValueRef
build_indexed_load_const(
413 struct si_shader_context
*ctx
,
414 LLVMValueRef base_ptr
, LLVMValueRef index
)
416 LLVMValueRef result
= build_indexed_load(ctx
, base_ptr
, index
, true);
417 LLVMSetMetadata(result
, 1, ctx
->const_md
);
421 static LLVMValueRef
get_instance_index_for_fetch(
422 struct radeon_llvm_context
*radeon_bld
,
423 unsigned param_start_instance
, unsigned divisor
)
425 struct si_shader_context
*ctx
=
426 si_shader_context(&radeon_bld
->soa
.bld_base
);
427 struct gallivm_state
*gallivm
= radeon_bld
->soa
.bld_base
.base
.gallivm
;
429 LLVMValueRef result
= LLVMGetParam(radeon_bld
->main_fn
,
430 ctx
->param_instance_id
);
432 /* The division must be done before START_INSTANCE is added. */
434 result
= LLVMBuildUDiv(gallivm
->builder
, result
,
435 lp_build_const_int32(gallivm
, divisor
), "");
437 return LLVMBuildAdd(gallivm
->builder
, result
,
438 LLVMGetParam(radeon_bld
->main_fn
, param_start_instance
), "");
441 static void declare_input_vs(
442 struct radeon_llvm_context
*radeon_bld
,
443 unsigned input_index
,
444 const struct tgsi_full_declaration
*decl
)
446 struct lp_build_context
*base
= &radeon_bld
->soa
.bld_base
.base
;
447 struct gallivm_state
*gallivm
= base
->gallivm
;
448 struct si_shader_context
*ctx
=
449 si_shader_context(&radeon_bld
->soa
.bld_base
);
451 ctx
->shader
->key
.vs
.prolog
.instance_divisors
[input_index
];
455 LLVMValueRef t_list_ptr
;
456 LLVMValueRef t_offset
;
458 LLVMValueRef attribute_offset
;
459 LLVMValueRef buffer_index
;
460 LLVMValueRef args
[3];
463 /* Load the T list */
464 t_list_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_VERTEX_BUFFERS
);
466 t_offset
= lp_build_const_int32(gallivm
, input_index
);
468 t_list
= build_indexed_load_const(ctx
, t_list_ptr
, t_offset
);
470 /* Build the attribute offset */
471 attribute_offset
= lp_build_const_int32(gallivm
, 0);
473 if (!ctx
->is_monolithic
) {
474 buffer_index
= LLVMGetParam(radeon_bld
->main_fn
,
475 ctx
->param_vertex_index0
+
477 } else if (divisor
) {
478 /* Build index from instance ID, start instance and divisor */
479 ctx
->shader
->info
.uses_instanceid
= true;
480 buffer_index
= get_instance_index_for_fetch(&ctx
->radeon_bld
,
481 SI_PARAM_START_INSTANCE
,
484 /* Load the buffer index for vertices. */
485 LLVMValueRef vertex_id
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
486 ctx
->param_vertex_id
);
487 LLVMValueRef base_vertex
= LLVMGetParam(radeon_bld
->main_fn
,
488 SI_PARAM_BASE_VERTEX
);
489 buffer_index
= LLVMBuildAdd(gallivm
->builder
, base_vertex
, vertex_id
, "");
493 args
[1] = attribute_offset
;
494 args
[2] = buffer_index
;
495 input
= lp_build_intrinsic(gallivm
->builder
,
496 "llvm.SI.vs.load.input", ctx
->v4f32
, args
, 3,
497 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
499 /* Break up the vec4 into individual components */
500 for (chan
= 0; chan
< 4; chan
++) {
501 LLVMValueRef llvm_chan
= lp_build_const_int32(gallivm
, chan
);
502 /* XXX: Use a helper function for this. There is one in
504 ctx
->radeon_bld
.inputs
[radeon_llvm_reg_index_soa(input_index
, chan
)] =
505 LLVMBuildExtractElement(gallivm
->builder
,
506 input
, llvm_chan
, "");
510 static LLVMValueRef
get_primitive_id(struct lp_build_tgsi_context
*bld_base
,
513 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
516 return bld_base
->uint_bld
.zero
;
519 case PIPE_SHADER_VERTEX
:
520 return LLVMGetParam(ctx
->radeon_bld
.main_fn
,
521 ctx
->param_vs_prim_id
);
522 case PIPE_SHADER_TESS_CTRL
:
523 return LLVMGetParam(ctx
->radeon_bld
.main_fn
,
525 case PIPE_SHADER_TESS_EVAL
:
526 return LLVMGetParam(ctx
->radeon_bld
.main_fn
,
527 ctx
->param_tes_patch_id
);
528 case PIPE_SHADER_GEOMETRY
:
529 return LLVMGetParam(ctx
->radeon_bld
.main_fn
,
530 SI_PARAM_PRIMITIVE_ID
);
533 return bld_base
->uint_bld
.zero
;
538 * Return the value of tgsi_ind_register for indexing.
539 * This is the indirect index with the constant offset added to it.
541 static LLVMValueRef
get_indirect_index(struct si_shader_context
*ctx
,
542 const struct tgsi_ind_register
*ind
,
545 struct gallivm_state
*gallivm
= ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
548 result
= ctx
->radeon_bld
.soa
.addr
[ind
->Index
][ind
->Swizzle
];
549 result
= LLVMBuildLoad(gallivm
->builder
, result
, "");
550 result
= LLVMBuildAdd(gallivm
->builder
, result
,
551 lp_build_const_int32(gallivm
, rel_index
), "");
556 * Like get_indirect_index, but restricts the return value to a (possibly
557 * undefined) value inside [0..num).
559 static LLVMValueRef
get_bounded_indirect_index(struct si_shader_context
*ctx
,
560 const struct tgsi_ind_register
*ind
,
561 int rel_index
, unsigned num
)
563 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
564 LLVMBuilderRef builder
= gallivm
->builder
;
565 LLVMValueRef result
= get_indirect_index(ctx
, ind
, rel_index
);
566 LLVMValueRef c_max
= LLVMConstInt(ctx
->i32
, num
- 1, 0);
569 /* LLVM 3.8: If indirect resource indexing is used:
573 if (HAVE_LLVM
<= 0x0308)
574 return LLVMGetUndef(ctx
->i32
);
576 if (util_is_power_of_two(num
)) {
577 result
= LLVMBuildAnd(builder
, result
, c_max
, "");
579 /* In theory, this MAX pattern should result in code that is
580 * as good as the bit-wise AND above.
582 * In practice, LLVM generates worse code (at the time of
583 * writing), because its value tracking is not strong enough.
585 cc
= LLVMBuildICmp(builder
, LLVMIntULE
, result
, c_max
, "");
586 result
= LLVMBuildSelect(builder
, cc
, result
, c_max
, "");
594 * Calculate a dword address given an input or output register and a stride.
596 static LLVMValueRef
get_dw_address(struct si_shader_context
*ctx
,
597 const struct tgsi_full_dst_register
*dst
,
598 const struct tgsi_full_src_register
*src
,
599 LLVMValueRef vertex_dw_stride
,
600 LLVMValueRef base_addr
)
602 struct gallivm_state
*gallivm
= ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
603 struct tgsi_shader_info
*info
= &ctx
->shader
->selector
->info
;
604 ubyte
*name
, *index
, *array_first
;
606 struct tgsi_full_dst_register reg
;
608 /* Set the register description. The address computation is the same
609 * for sources and destinations. */
611 reg
.Register
.File
= src
->Register
.File
;
612 reg
.Register
.Index
= src
->Register
.Index
;
613 reg
.Register
.Indirect
= src
->Register
.Indirect
;
614 reg
.Register
.Dimension
= src
->Register
.Dimension
;
615 reg
.Indirect
= src
->Indirect
;
616 reg
.Dimension
= src
->Dimension
;
617 reg
.DimIndirect
= src
->DimIndirect
;
621 /* If the register is 2-dimensional (e.g. an array of vertices
622 * in a primitive), calculate the base address of the vertex. */
623 if (reg
.Register
.Dimension
) {
626 if (reg
.Dimension
.Indirect
)
627 index
= get_indirect_index(ctx
, ®
.DimIndirect
,
628 reg
.Dimension
.Index
);
630 index
= lp_build_const_int32(gallivm
, reg
.Dimension
.Index
);
632 base_addr
= LLVMBuildAdd(gallivm
->builder
, base_addr
,
633 LLVMBuildMul(gallivm
->builder
, index
,
634 vertex_dw_stride
, ""), "");
637 /* Get information about the register. */
638 if (reg
.Register
.File
== TGSI_FILE_INPUT
) {
639 name
= info
->input_semantic_name
;
640 index
= info
->input_semantic_index
;
641 array_first
= info
->input_array_first
;
642 } else if (reg
.Register
.File
== TGSI_FILE_OUTPUT
) {
643 name
= info
->output_semantic_name
;
644 index
= info
->output_semantic_index
;
645 array_first
= info
->output_array_first
;
651 if (reg
.Register
.Indirect
) {
652 /* Add the relative address of the element. */
653 LLVMValueRef ind_index
;
655 if (reg
.Indirect
.ArrayID
)
656 first
= array_first
[reg
.Indirect
.ArrayID
];
658 first
= reg
.Register
.Index
;
660 ind_index
= get_indirect_index(ctx
, ®
.Indirect
,
661 reg
.Register
.Index
- first
);
663 base_addr
= LLVMBuildAdd(gallivm
->builder
, base_addr
,
664 LLVMBuildMul(gallivm
->builder
, ind_index
,
665 lp_build_const_int32(gallivm
, 4), ""), "");
667 param
= si_shader_io_get_unique_index(name
[first
], index
[first
]);
669 param
= si_shader_io_get_unique_index(name
[reg
.Register
.Index
],
670 index
[reg
.Register
.Index
]);
673 /* Add the base address of the element. */
674 return LLVMBuildAdd(gallivm
->builder
, base_addr
,
675 lp_build_const_int32(gallivm
, param
* 4), "");
678 /* The offchip buffer layout for TCS->TES is
680 * - attribute 0 of patch 0 vertex 0
681 * - attribute 0 of patch 0 vertex 1
682 * - attribute 0 of patch 0 vertex 2
684 * - attribute 0 of patch 1 vertex 0
685 * - attribute 0 of patch 1 vertex 1
687 * - attribute 1 of patch 0 vertex 0
688 * - attribute 1 of patch 0 vertex 1
690 * - per patch attribute 0 of patch 0
691 * - per patch attribute 0 of patch 1
694 * Note that every attribute has 4 components.
696 static LLVMValueRef
get_tcs_tes_buffer_address(struct si_shader_context
*ctx
,
697 LLVMValueRef vertex_index
,
698 LLVMValueRef param_index
)
700 struct gallivm_state
*gallivm
= ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
701 LLVMValueRef base_addr
, vertices_per_patch
, num_patches
, total_vertices
;
702 LLVMValueRef param_stride
, constant16
;
704 vertices_per_patch
= unpack_param(ctx
, SI_PARAM_TCS_OFFCHIP_LAYOUT
, 9, 6);
705 num_patches
= unpack_param(ctx
, SI_PARAM_TCS_OFFCHIP_LAYOUT
, 0, 9);
706 total_vertices
= LLVMBuildMul(gallivm
->builder
, vertices_per_patch
,
709 constant16
= lp_build_const_int32(gallivm
, 16);
711 base_addr
= LLVMBuildMul(gallivm
->builder
, get_rel_patch_id(ctx
),
712 vertices_per_patch
, "");
714 base_addr
= LLVMBuildAdd(gallivm
->builder
, base_addr
,
717 param_stride
= total_vertices
;
719 base_addr
= get_rel_patch_id(ctx
);
720 param_stride
= num_patches
;
723 base_addr
= LLVMBuildAdd(gallivm
->builder
, base_addr
,
724 LLVMBuildMul(gallivm
->builder
, param_index
,
725 param_stride
, ""), "");
727 base_addr
= LLVMBuildMul(gallivm
->builder
, base_addr
, constant16
, "");
730 LLVMValueRef patch_data_offset
=
731 unpack_param(ctx
, SI_PARAM_TCS_OFFCHIP_LAYOUT
, 16, 16);
733 base_addr
= LLVMBuildAdd(gallivm
->builder
, base_addr
,
734 patch_data_offset
, "");
739 static LLVMValueRef
get_tcs_tes_buffer_address_from_reg(
740 struct si_shader_context
*ctx
,
741 const struct tgsi_full_dst_register
*dst
,
742 const struct tgsi_full_src_register
*src
)
744 struct gallivm_state
*gallivm
= ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
745 struct tgsi_shader_info
*info
= &ctx
->shader
->selector
->info
;
746 ubyte
*name
, *index
, *array_first
;
747 struct tgsi_full_src_register reg
;
748 LLVMValueRef vertex_index
= NULL
;
749 LLVMValueRef param_index
= NULL
;
750 unsigned param_index_base
, param_base
;
752 reg
= src
? *src
: tgsi_full_src_register_from_dst(dst
);
754 if (reg
.Register
.Dimension
) {
756 if (reg
.Dimension
.Indirect
)
757 vertex_index
= get_indirect_index(ctx
, ®
.DimIndirect
,
758 reg
.Dimension
.Index
);
760 vertex_index
= lp_build_const_int32(gallivm
,
761 reg
.Dimension
.Index
);
764 /* Get information about the register. */
765 if (reg
.Register
.File
== TGSI_FILE_INPUT
) {
766 name
= info
->input_semantic_name
;
767 index
= info
->input_semantic_index
;
768 array_first
= info
->input_array_first
;
769 } else if (reg
.Register
.File
== TGSI_FILE_OUTPUT
) {
770 name
= info
->output_semantic_name
;
771 index
= info
->output_semantic_index
;
772 array_first
= info
->output_array_first
;
778 if (reg
.Register
.Indirect
) {
779 if (reg
.Indirect
.ArrayID
)
780 param_base
= array_first
[reg
.Indirect
.ArrayID
];
782 param_base
= reg
.Register
.Index
;
784 param_index
= get_indirect_index(ctx
, ®
.Indirect
,
785 reg
.Register
.Index
- param_base
);
788 param_base
= reg
.Register
.Index
;
789 param_index
= lp_build_const_int32(gallivm
, 0);
792 param_index_base
= si_shader_io_get_unique_index(name
[param_base
],
795 param_index
= LLVMBuildAdd(gallivm
->builder
, param_index
,
796 lp_build_const_int32(gallivm
, param_index_base
),
799 return get_tcs_tes_buffer_address(ctx
, vertex_index
, param_index
);
802 /* TBUFFER_STORE_FORMAT_{X,XY,XYZ,XYZW} <- the suffix is selected by num_channels=1..4.
803 * The type of vdata must be one of i32 (num_channels=1), v2i32 (num_channels=2),
804 * or v4i32 (num_channels=3,4). */
805 static void build_tbuffer_store(struct si_shader_context
*ctx
,
808 unsigned num_channels
,
810 LLVMValueRef soffset
,
811 unsigned inst_offset
,
820 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
821 LLVMValueRef args
[] = {
824 LLVMConstInt(ctx
->i32
, num_channels
, 0),
827 LLVMConstInt(ctx
->i32
, inst_offset
, 0),
828 LLVMConstInt(ctx
->i32
, dfmt
, 0),
829 LLVMConstInt(ctx
->i32
, nfmt
, 0),
830 LLVMConstInt(ctx
->i32
, offen
, 0),
831 LLVMConstInt(ctx
->i32
, idxen
, 0),
832 LLVMConstInt(ctx
->i32
, glc
, 0),
833 LLVMConstInt(ctx
->i32
, slc
, 0),
834 LLVMConstInt(ctx
->i32
, tfe
, 0)
837 /* The instruction offset field has 12 bits */
838 assert(offen
|| inst_offset
< (1 << 12));
840 /* The intrinsic is overloaded, we need to add a type suffix for overloading to work. */
841 unsigned func
= CLAMP(num_channels
, 1, 3) - 1;
842 const char *types
[] = {"i32", "v2i32", "v4i32"};
844 snprintf(name
, sizeof(name
), "llvm.SI.tbuffer.store.%s", types
[func
]);
846 lp_build_intrinsic(gallivm
->builder
, name
, ctx
->voidt
,
847 args
, ARRAY_SIZE(args
), 0);
850 static void build_tbuffer_store_dwords(struct si_shader_context
*ctx
,
853 unsigned num_channels
,
855 LLVMValueRef soffset
,
856 unsigned inst_offset
)
858 static unsigned dfmt
[] = {
859 V_008F0C_BUF_DATA_FORMAT_32
,
860 V_008F0C_BUF_DATA_FORMAT_32_32
,
861 V_008F0C_BUF_DATA_FORMAT_32_32_32
,
862 V_008F0C_BUF_DATA_FORMAT_32_32_32_32
864 assert(num_channels
>= 1 && num_channels
<= 4);
866 build_tbuffer_store(ctx
, rsrc
, vdata
, num_channels
, vaddr
, soffset
,
867 inst_offset
, dfmt
[num_channels
-1],
868 V_008F0C_BUF_NUM_FORMAT_UINT
, 1, 0, 1, 1, 0);
871 static LLVMValueRef
build_buffer_load(struct si_shader_context
*ctx
,
875 LLVMValueRef voffset
,
876 LLVMValueRef soffset
,
877 unsigned inst_offset
,
881 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
882 unsigned func
= CLAMP(num_channels
, 1, 3) - 1;
884 if (HAVE_LLVM
>= 0x309) {
885 LLVMValueRef args
[] = {
886 LLVMBuildBitCast(gallivm
->builder
, rsrc
, ctx
->v4i32
, ""),
887 vindex
? vindex
: LLVMConstInt(ctx
->i32
, 0, 0),
888 LLVMConstInt(ctx
->i32
, inst_offset
, 0),
889 LLVMConstInt(ctx
->i1
, glc
, 0),
890 LLVMConstInt(ctx
->i1
, slc
, 0)
893 LLVMTypeRef types
[] = {ctx
->f32
, LLVMVectorType(ctx
->f32
, 2),
895 const char *type_names
[] = {"f32", "v2f32", "v4f32"};
899 args
[2] = LLVMBuildAdd(gallivm
->builder
, args
[2], voffset
,
904 args
[2] = LLVMBuildAdd(gallivm
->builder
, args
[2], soffset
,
908 snprintf(name
, sizeof(name
), "llvm.amdgcn.buffer.load.%s",
911 return lp_build_intrinsic(gallivm
->builder
, name
, types
[func
], args
,
912 ARRAY_SIZE(args
), LLVMReadOnlyAttribute
|
913 LLVMNoUnwindAttribute
);
915 LLVMValueRef args
[] = {
916 LLVMBuildBitCast(gallivm
->builder
, rsrc
, ctx
->v16i8
, ""),
917 voffset
? voffset
: vindex
,
919 LLVMConstInt(ctx
->i32
, inst_offset
, 0),
920 LLVMConstInt(ctx
->i32
, voffset
? 1 : 0, 0), // offen
921 LLVMConstInt(ctx
->i32
, vindex
? 1 : 0, 0), //idxen
922 LLVMConstInt(ctx
->i32
, glc
, 0),
923 LLVMConstInt(ctx
->i32
, slc
, 0),
924 LLVMConstInt(ctx
->i32
, 0, 0), // TFE
927 LLVMTypeRef types
[] = {ctx
->i32
, LLVMVectorType(ctx
->i32
, 2),
929 const char *type_names
[] = {"i32", "v2i32", "v4i32"};
930 const char *arg_type
= "i32";
933 if (voffset
&& vindex
) {
934 LLVMValueRef vaddr
[] = {vindex
, voffset
};
937 args
[1] = lp_build_gather_values(gallivm
, vaddr
, 2);
940 snprintf(name
, sizeof(name
), "llvm.SI.buffer.load.dword.%s.%s",
941 type_names
[func
], arg_type
);
943 return lp_build_intrinsic(gallivm
->builder
, name
, types
[func
], args
,
944 ARRAY_SIZE(args
), LLVMReadOnlyAttribute
|
945 LLVMNoUnwindAttribute
);
949 static LLVMValueRef
buffer_load(struct lp_build_tgsi_context
*bld_base
,
950 enum tgsi_opcode_type type
, unsigned swizzle
,
951 LLVMValueRef buffer
, LLVMValueRef offset
,
954 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
955 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
956 LLVMValueRef value
, value2
;
957 LLVMTypeRef llvm_type
= tgsi2llvmtype(bld_base
, type
);
958 LLVMTypeRef vec_type
= LLVMVectorType(llvm_type
, 4);
961 value
= build_buffer_load(ctx
, buffer
, 4, NULL
, base
, offset
,
964 return LLVMBuildBitCast(gallivm
->builder
, value
, vec_type
, "");
967 if (!tgsi_type_is_64bit(type
)) {
968 value
= build_buffer_load(ctx
, buffer
, 4, NULL
, base
, offset
,
971 value
= LLVMBuildBitCast(gallivm
->builder
, value
, vec_type
, "");
972 return LLVMBuildExtractElement(gallivm
->builder
, value
,
973 lp_build_const_int32(gallivm
, swizzle
), "");
976 value
= build_buffer_load(ctx
, buffer
, 1, NULL
, base
, offset
,
979 value2
= build_buffer_load(ctx
, buffer
, 1, NULL
, base
, offset
,
980 swizzle
* 4 + 4, 1, 0);
982 return radeon_llvm_emit_fetch_64bit(bld_base
, type
, value
, value2
);
988 * \param type output value type
989 * \param swizzle offset (typically 0..3); it can be ~0, which loads a vec4
990 * \param dw_addr address in dwords
992 static LLVMValueRef
lds_load(struct lp_build_tgsi_context
*bld_base
,
993 enum tgsi_opcode_type type
, unsigned swizzle
,
994 LLVMValueRef dw_addr
)
996 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
997 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1000 if (swizzle
== ~0) {
1001 LLVMValueRef values
[TGSI_NUM_CHANNELS
];
1003 for (unsigned chan
= 0; chan
< TGSI_NUM_CHANNELS
; chan
++)
1004 values
[chan
] = lds_load(bld_base
, type
, chan
, dw_addr
);
1006 return lp_build_gather_values(bld_base
->base
.gallivm
, values
,
1010 dw_addr
= lp_build_add(&bld_base
->uint_bld
, dw_addr
,
1011 lp_build_const_int32(gallivm
, swizzle
));
1013 value
= build_indexed_load(ctx
, ctx
->lds
, dw_addr
, false);
1014 if (tgsi_type_is_64bit(type
)) {
1015 LLVMValueRef value2
;
1016 dw_addr
= lp_build_add(&bld_base
->uint_bld
, dw_addr
,
1017 lp_build_const_int32(gallivm
, swizzle
+ 1));
1018 value2
= build_indexed_load(ctx
, ctx
->lds
, dw_addr
, false);
1019 return radeon_llvm_emit_fetch_64bit(bld_base
, type
, value
, value2
);
1022 return LLVMBuildBitCast(gallivm
->builder
, value
,
1023 tgsi2llvmtype(bld_base
, type
), "");
1029 * \param swizzle offset (typically 0..3)
1030 * \param dw_addr address in dwords
1031 * \param value value to store
1033 static void lds_store(struct lp_build_tgsi_context
*bld_base
,
1034 unsigned swizzle
, LLVMValueRef dw_addr
,
1037 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1038 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1040 dw_addr
= lp_build_add(&bld_base
->uint_bld
, dw_addr
,
1041 lp_build_const_int32(gallivm
, swizzle
));
1043 value
= LLVMBuildBitCast(gallivm
->builder
, value
, ctx
->i32
, "");
1044 build_indexed_store(ctx
, ctx
->lds
,
1048 static LLVMValueRef
fetch_input_tcs(
1049 struct lp_build_tgsi_context
*bld_base
,
1050 const struct tgsi_full_src_register
*reg
,
1051 enum tgsi_opcode_type type
, unsigned swizzle
)
1053 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1054 LLVMValueRef dw_addr
, stride
;
1056 stride
= unpack_param(ctx
, SI_PARAM_TCS_IN_LAYOUT
, 13, 8);
1057 dw_addr
= get_tcs_in_current_patch_offset(ctx
);
1058 dw_addr
= get_dw_address(ctx
, NULL
, reg
, stride
, dw_addr
);
1060 return lds_load(bld_base
, type
, swizzle
, dw_addr
);
1063 static LLVMValueRef
fetch_output_tcs(
1064 struct lp_build_tgsi_context
*bld_base
,
1065 const struct tgsi_full_src_register
*reg
,
1066 enum tgsi_opcode_type type
, unsigned swizzle
)
1068 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1069 LLVMValueRef dw_addr
, stride
;
1071 if (reg
->Register
.Dimension
) {
1072 stride
= unpack_param(ctx
, SI_PARAM_TCS_OUT_LAYOUT
, 13, 8);
1073 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
1074 dw_addr
= get_dw_address(ctx
, NULL
, reg
, stride
, dw_addr
);
1076 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
1077 dw_addr
= get_dw_address(ctx
, NULL
, reg
, NULL
, dw_addr
);
1080 return lds_load(bld_base
, type
, swizzle
, dw_addr
);
1083 static LLVMValueRef
fetch_input_tes(
1084 struct lp_build_tgsi_context
*bld_base
,
1085 const struct tgsi_full_src_register
*reg
,
1086 enum tgsi_opcode_type type
, unsigned swizzle
)
1088 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1089 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1090 LLVMValueRef rw_buffers
, buffer
, base
, addr
;
1092 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
1093 SI_PARAM_RW_BUFFERS
);
1094 buffer
= build_indexed_load_const(ctx
, rw_buffers
,
1095 lp_build_const_int32(gallivm
, SI_HS_RING_TESS_OFFCHIP
));
1097 base
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, ctx
->param_oc_lds
);
1098 addr
= get_tcs_tes_buffer_address_from_reg(ctx
, NULL
, reg
);
1100 return buffer_load(bld_base
, type
, swizzle
, buffer
, base
, addr
);
1103 static void store_output_tcs(struct lp_build_tgsi_context
*bld_base
,
1104 const struct tgsi_full_instruction
*inst
,
1105 const struct tgsi_opcode_info
*info
,
1106 LLVMValueRef dst
[4])
1108 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1109 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
1110 const struct tgsi_full_dst_register
*reg
= &inst
->Dst
[0];
1111 unsigned chan_index
;
1112 LLVMValueRef dw_addr
, stride
;
1113 LLVMValueRef rw_buffers
, buffer
, base
, buf_addr
;
1114 LLVMValueRef values
[4];
1116 /* Only handle per-patch and per-vertex outputs here.
1117 * Vectors will be lowered to scalars and this function will be called again.
1119 if (reg
->Register
.File
!= TGSI_FILE_OUTPUT
||
1120 (dst
[0] && LLVMGetTypeKind(LLVMTypeOf(dst
[0])) == LLVMVectorTypeKind
)) {
1121 radeon_llvm_emit_store(bld_base
, inst
, info
, dst
);
1125 if (reg
->Register
.Dimension
) {
1126 stride
= unpack_param(ctx
, SI_PARAM_TCS_OUT_LAYOUT
, 13, 8);
1127 dw_addr
= get_tcs_out_current_patch_offset(ctx
);
1128 dw_addr
= get_dw_address(ctx
, reg
, NULL
, stride
, dw_addr
);
1130 dw_addr
= get_tcs_out_current_patch_data_offset(ctx
);
1131 dw_addr
= get_dw_address(ctx
, reg
, NULL
, NULL
, dw_addr
);
1134 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
1135 SI_PARAM_RW_BUFFERS
);
1136 buffer
= build_indexed_load_const(ctx
, rw_buffers
,
1137 lp_build_const_int32(gallivm
, SI_HS_RING_TESS_OFFCHIP
));
1139 base
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, ctx
->param_oc_lds
);
1140 buf_addr
= get_tcs_tes_buffer_address_from_reg(ctx
, reg
, NULL
);
1143 TGSI_FOR_EACH_DST0_ENABLED_CHANNEL(inst
, chan_index
) {
1144 LLVMValueRef value
= dst
[chan_index
];
1146 if (inst
->Instruction
.Saturate
)
1147 value
= radeon_llvm_saturate(bld_base
, value
);
1149 lds_store(bld_base
, chan_index
, dw_addr
, value
);
1151 value
= LLVMBuildBitCast(gallivm
->builder
, value
, ctx
->i32
, "");
1152 values
[chan_index
] = value
;
1154 if (inst
->Dst
[0].Register
.WriteMask
!= 0xF) {
1155 build_tbuffer_store_dwords(ctx
, buffer
, value
, 1,
1161 if (inst
->Dst
[0].Register
.WriteMask
== 0xF) {
1162 LLVMValueRef value
= lp_build_gather_values(bld_base
->base
.gallivm
,
1164 build_tbuffer_store_dwords(ctx
, buffer
, value
, 4, buf_addr
,
1169 static LLVMValueRef
fetch_input_gs(
1170 struct lp_build_tgsi_context
*bld_base
,
1171 const struct tgsi_full_src_register
*reg
,
1172 enum tgsi_opcode_type type
,
1175 struct lp_build_context
*base
= &bld_base
->base
;
1176 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1177 struct si_shader
*shader
= ctx
->shader
;
1178 struct lp_build_context
*uint
= &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
1179 struct gallivm_state
*gallivm
= base
->gallivm
;
1180 LLVMValueRef vtx_offset
;
1181 LLVMValueRef args
[9];
1182 unsigned vtx_offset_param
;
1183 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
1184 unsigned semantic_name
= info
->input_semantic_name
[reg
->Register
.Index
];
1185 unsigned semantic_index
= info
->input_semantic_index
[reg
->Register
.Index
];
1189 if (swizzle
!= ~0 && semantic_name
== TGSI_SEMANTIC_PRIMID
)
1190 return get_primitive_id(bld_base
, swizzle
);
1192 if (!reg
->Register
.Dimension
)
1195 if (swizzle
== ~0) {
1196 LLVMValueRef values
[TGSI_NUM_CHANNELS
];
1198 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; chan
++) {
1199 values
[chan
] = fetch_input_gs(bld_base
, reg
, type
, chan
);
1201 return lp_build_gather_values(bld_base
->base
.gallivm
, values
,
1205 /* Get the vertex offset parameter */
1206 vtx_offset_param
= reg
->Dimension
.Index
;
1207 if (vtx_offset_param
< 2) {
1208 vtx_offset_param
+= SI_PARAM_VTX0_OFFSET
;
1210 assert(vtx_offset_param
< 6);
1211 vtx_offset_param
+= SI_PARAM_VTX2_OFFSET
- 2;
1213 vtx_offset
= lp_build_mul_imm(uint
,
1214 LLVMGetParam(ctx
->radeon_bld
.main_fn
,
1218 param
= si_shader_io_get_unique_index(semantic_name
, semantic_index
);
1219 args
[0] = ctx
->esgs_ring
;
1220 args
[1] = vtx_offset
;
1221 args
[2] = lp_build_const_int32(gallivm
, (param
* 4 + swizzle
) * 256);
1222 args
[3] = uint
->zero
;
1223 args
[4] = uint
->one
; /* OFFEN */
1224 args
[5] = uint
->zero
; /* IDXEN */
1225 args
[6] = uint
->one
; /* GLC */
1226 args
[7] = uint
->zero
; /* SLC */
1227 args
[8] = uint
->zero
; /* TFE */
1229 value
= lp_build_intrinsic(gallivm
->builder
,
1230 "llvm.SI.buffer.load.dword.i32.i32",
1232 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
);
1233 if (tgsi_type_is_64bit(type
)) {
1234 LLVMValueRef value2
;
1235 args
[2] = lp_build_const_int32(gallivm
, (param
* 4 + swizzle
+ 1) * 256);
1236 value2
= lp_build_intrinsic(gallivm
->builder
,
1237 "llvm.SI.buffer.load.dword.i32.i32",
1239 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
);
1240 return radeon_llvm_emit_fetch_64bit(bld_base
, type
,
1243 return LLVMBuildBitCast(gallivm
->builder
,
1245 tgsi2llvmtype(bld_base
, type
), "");
1248 static int lookup_interp_param_index(unsigned interpolate
, unsigned location
)
1250 switch (interpolate
) {
1251 case TGSI_INTERPOLATE_CONSTANT
:
1254 case TGSI_INTERPOLATE_LINEAR
:
1255 if (location
== TGSI_INTERPOLATE_LOC_SAMPLE
)
1256 return SI_PARAM_LINEAR_SAMPLE
;
1257 else if (location
== TGSI_INTERPOLATE_LOC_CENTROID
)
1258 return SI_PARAM_LINEAR_CENTROID
;
1260 return SI_PARAM_LINEAR_CENTER
;
1262 case TGSI_INTERPOLATE_COLOR
:
1263 case TGSI_INTERPOLATE_PERSPECTIVE
:
1264 if (location
== TGSI_INTERPOLATE_LOC_SAMPLE
)
1265 return SI_PARAM_PERSP_SAMPLE
;
1266 else if (location
== TGSI_INTERPOLATE_LOC_CENTROID
)
1267 return SI_PARAM_PERSP_CENTROID
;
1269 return SI_PARAM_PERSP_CENTER
;
1272 fprintf(stderr
, "Warning: Unhandled interpolation mode.\n");
1277 /* This shouldn't be used by explicit INTERP opcodes. */
1278 static unsigned select_interp_param(struct si_shader_context
*ctx
,
1281 if (!ctx
->shader
->key
.ps
.prolog
.force_persample_interp
||
1282 !ctx
->is_monolithic
)
1285 /* If the shader doesn't use center/centroid, just return the parameter.
1287 * If the shader only uses one set of (i,j), "si_emit_spi_ps_input" can
1288 * switch between center/centroid and sample without shader changes.
1291 case SI_PARAM_PERSP_CENTROID
:
1292 case SI_PARAM_PERSP_CENTER
:
1293 return SI_PARAM_PERSP_SAMPLE
;
1295 case SI_PARAM_LINEAR_CENTROID
:
1296 case SI_PARAM_LINEAR_CENTER
:
1297 return SI_PARAM_LINEAR_SAMPLE
;
1305 * Interpolate a fragment shader input.
1307 * @param ctx context
1308 * @param input_index index of the input in hardware
1309 * @param semantic_name TGSI_SEMANTIC_*
1310 * @param semantic_index semantic index
1311 * @param num_interp_inputs number of all interpolated inputs (= BCOLOR offset)
1312 * @param colors_read_mask color components read (4 bits for each color, 8 bits in total)
1313 * @param interp_param interpolation weights (i,j)
1314 * @param prim_mask SI_PARAM_PRIM_MASK
1315 * @param face SI_PARAM_FRONT_FACE
1316 * @param result the return value (4 components)
1318 static void interp_fs_input(struct si_shader_context
*ctx
,
1319 unsigned input_index
,
1320 unsigned semantic_name
,
1321 unsigned semantic_index
,
1322 unsigned num_interp_inputs
,
1323 unsigned colors_read_mask
,
1324 LLVMValueRef interp_param
,
1325 LLVMValueRef prim_mask
,
1327 LLVMValueRef result
[4])
1329 struct lp_build_context
*base
= &ctx
->radeon_bld
.soa
.bld_base
.base
;
1330 struct lp_build_context
*uint
= &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
1331 struct gallivm_state
*gallivm
= base
->gallivm
;
1332 const char *intr_name
;
1333 LLVMValueRef attr_number
;
1337 attr_number
= lp_build_const_int32(gallivm
, input_index
);
1339 /* fs.constant returns the param from the middle vertex, so it's not
1340 * really useful for flat shading. It's meant to be used for custom
1341 * interpolation (but the intrinsic can't fetch from the other two
1344 * Luckily, it doesn't matter, because we rely on the FLAT_SHADE state
1345 * to do the right thing. The only reason we use fs.constant is that
1346 * fs.interp cannot be used on integers, because they can be equal
1349 intr_name
= interp_param
? "llvm.SI.fs.interp" : "llvm.SI.fs.constant";
1351 if (semantic_name
== TGSI_SEMANTIC_COLOR
&&
1352 ctx
->shader
->key
.ps
.prolog
.color_two_side
) {
1353 LLVMValueRef args
[4];
1354 LLVMValueRef is_face_positive
;
1355 LLVMValueRef back_attr_number
;
1357 /* If BCOLOR0 is used, BCOLOR1 is at offset "num_inputs + 1",
1358 * otherwise it's at offset "num_inputs".
1360 unsigned back_attr_offset
= num_interp_inputs
;
1361 if (semantic_index
== 1 && colors_read_mask
& 0xf)
1362 back_attr_offset
+= 1;
1364 back_attr_number
= lp_build_const_int32(gallivm
, back_attr_offset
);
1366 is_face_positive
= LLVMBuildICmp(gallivm
->builder
, LLVMIntNE
,
1367 face
, uint
->zero
, "");
1369 args
[2] = prim_mask
;
1370 args
[3] = interp_param
;
1371 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; chan
++) {
1372 LLVMValueRef llvm_chan
= lp_build_const_int32(gallivm
, chan
);
1373 LLVMValueRef front
, back
;
1375 args
[0] = llvm_chan
;
1376 args
[1] = attr_number
;
1377 front
= lp_build_intrinsic(gallivm
->builder
, intr_name
,
1378 ctx
->f32
, args
, args
[3] ? 4 : 3,
1379 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1381 args
[1] = back_attr_number
;
1382 back
= lp_build_intrinsic(gallivm
->builder
, intr_name
,
1383 ctx
->f32
, args
, args
[3] ? 4 : 3,
1384 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1386 result
[chan
] = LLVMBuildSelect(gallivm
->builder
,
1392 } else if (semantic_name
== TGSI_SEMANTIC_FOG
) {
1393 LLVMValueRef args
[4];
1395 args
[0] = uint
->zero
;
1396 args
[1] = attr_number
;
1397 args
[2] = prim_mask
;
1398 args
[3] = interp_param
;
1399 result
[0] = lp_build_intrinsic(gallivm
->builder
, intr_name
,
1400 ctx
->f32
, args
, args
[3] ? 4 : 3,
1401 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1403 result
[2] = lp_build_const_float(gallivm
, 0.0f
);
1404 result
[3] = lp_build_const_float(gallivm
, 1.0f
);
1406 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; chan
++) {
1407 LLVMValueRef args
[4];
1408 LLVMValueRef llvm_chan
= lp_build_const_int32(gallivm
, chan
);
1410 args
[0] = llvm_chan
;
1411 args
[1] = attr_number
;
1412 args
[2] = prim_mask
;
1413 args
[3] = interp_param
;
1414 result
[chan
] = lp_build_intrinsic(gallivm
->builder
, intr_name
,
1415 ctx
->f32
, args
, args
[3] ? 4 : 3,
1416 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1421 static void declare_input_fs(
1422 struct radeon_llvm_context
*radeon_bld
,
1423 unsigned input_index
,
1424 const struct tgsi_full_declaration
*decl
)
1426 struct lp_build_context
*base
= &radeon_bld
->soa
.bld_base
.base
;
1427 struct si_shader_context
*ctx
=
1428 si_shader_context(&radeon_bld
->soa
.bld_base
);
1429 struct si_shader
*shader
= ctx
->shader
;
1430 LLVMValueRef main_fn
= radeon_bld
->main_fn
;
1431 LLVMValueRef interp_param
= NULL
;
1432 int interp_param_idx
;
1434 /* Get colors from input VGPRs (set by the prolog). */
1435 if (!ctx
->is_monolithic
&&
1436 decl
->Semantic
.Name
== TGSI_SEMANTIC_COLOR
) {
1437 unsigned i
= decl
->Semantic
.Index
;
1438 unsigned colors_read
= shader
->selector
->info
.colors_read
;
1439 unsigned mask
= colors_read
>> (i
* 4);
1440 unsigned offset
= SI_PARAM_POS_FIXED_PT
+ 1 +
1441 (i
? util_bitcount(colors_read
& 0xf) : 0);
1443 radeon_bld
->inputs
[radeon_llvm_reg_index_soa(input_index
, 0)] =
1444 mask
& 0x1 ? LLVMGetParam(main_fn
, offset
++) : base
->undef
;
1445 radeon_bld
->inputs
[radeon_llvm_reg_index_soa(input_index
, 1)] =
1446 mask
& 0x2 ? LLVMGetParam(main_fn
, offset
++) : base
->undef
;
1447 radeon_bld
->inputs
[radeon_llvm_reg_index_soa(input_index
, 2)] =
1448 mask
& 0x4 ? LLVMGetParam(main_fn
, offset
++) : base
->undef
;
1449 radeon_bld
->inputs
[radeon_llvm_reg_index_soa(input_index
, 3)] =
1450 mask
& 0x8 ? LLVMGetParam(main_fn
, offset
++) : base
->undef
;
1454 interp_param_idx
= lookup_interp_param_index(decl
->Interp
.Interpolate
,
1455 decl
->Interp
.Location
);
1456 if (interp_param_idx
== -1)
1458 else if (interp_param_idx
) {
1459 interp_param_idx
= select_interp_param(ctx
,
1461 interp_param
= LLVMGetParam(main_fn
, interp_param_idx
);
1464 interp_fs_input(ctx
, input_index
, decl
->Semantic
.Name
,
1465 decl
->Semantic
.Index
, shader
->selector
->info
.num_inputs
,
1466 shader
->selector
->info
.colors_read
, interp_param
,
1467 LLVMGetParam(main_fn
, SI_PARAM_PRIM_MASK
),
1468 LLVMGetParam(main_fn
, SI_PARAM_FRONT_FACE
),
1469 &radeon_bld
->inputs
[radeon_llvm_reg_index_soa(input_index
, 0)]);
1472 static LLVMValueRef
get_sample_id(struct radeon_llvm_context
*radeon_bld
)
1474 return unpack_param(si_shader_context(&radeon_bld
->soa
.bld_base
),
1475 SI_PARAM_ANCILLARY
, 8, 4);
1479 * Set range metadata on an instruction. This can only be used on load and
1480 * call instructions. If you know an instruction can only produce the values
1481 * 0, 1, 2, you would do set_range_metadata(value, 0, 3);
1482 * \p lo is the minimum value inclusive.
1483 * \p hi is the maximum value exclusive.
1485 static void set_range_metadata(LLVMValueRef value
, unsigned lo
, unsigned hi
)
1487 const char *range_md_string
= "range";
1488 LLVMValueRef range_md
, md_args
[2];
1489 LLVMTypeRef type
= LLVMTypeOf(value
);
1490 LLVMContextRef context
= LLVMGetTypeContext(type
);
1491 unsigned md_range_id
= LLVMGetMDKindIDInContext(context
,
1492 range_md_string
, strlen(range_md_string
));
1494 md_args
[0] = LLVMConstInt(type
, lo
, false);
1495 md_args
[1] = LLVMConstInt(type
, hi
, false);
1496 range_md
= LLVMMDNodeInContext(context
, md_args
, 2);
1497 LLVMSetMetadata(value
, md_range_id
, range_md
);
1500 static LLVMValueRef
get_thread_id(struct si_shader_context
*ctx
)
1502 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
1505 if (HAVE_LLVM
< 0x0308) {
1506 tid
= lp_build_intrinsic(gallivm
->builder
, "llvm.SI.tid",
1507 ctx
->i32
, NULL
, 0, LLVMReadNoneAttribute
);
1509 LLVMValueRef tid_args
[2];
1510 tid_args
[0] = lp_build_const_int32(gallivm
, 0xffffffff);
1511 tid_args
[1] = lp_build_const_int32(gallivm
, 0);
1512 tid_args
[1] = lp_build_intrinsic(gallivm
->builder
,
1513 "llvm.amdgcn.mbcnt.lo", ctx
->i32
,
1514 tid_args
, 2, LLVMReadNoneAttribute
);
1516 tid
= lp_build_intrinsic(gallivm
->builder
,
1517 "llvm.amdgcn.mbcnt.hi", ctx
->i32
,
1518 tid_args
, 2, LLVMReadNoneAttribute
);
1520 set_range_metadata(tid
, 0, 64);
1525 * Load a dword from a constant buffer.
1527 static LLVMValueRef
buffer_load_const(LLVMBuilderRef builder
, LLVMValueRef resource
,
1528 LLVMValueRef offset
, LLVMTypeRef return_type
)
1530 LLVMValueRef args
[2] = {resource
, offset
};
1532 return lp_build_intrinsic(builder
, "llvm.SI.load.const", return_type
, args
, 2,
1533 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1536 static LLVMValueRef
load_sample_position(struct radeon_llvm_context
*radeon_bld
, LLVMValueRef sample_id
)
1538 struct si_shader_context
*ctx
=
1539 si_shader_context(&radeon_bld
->soa
.bld_base
);
1540 struct lp_build_context
*uint_bld
= &radeon_bld
->soa
.bld_base
.uint_bld
;
1541 struct gallivm_state
*gallivm
= &radeon_bld
->gallivm
;
1542 LLVMBuilderRef builder
= gallivm
->builder
;
1543 LLVMValueRef desc
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_RW_BUFFERS
);
1544 LLVMValueRef buf_index
= lp_build_const_int32(gallivm
, SI_PS_CONST_SAMPLE_POSITIONS
);
1545 LLVMValueRef resource
= build_indexed_load_const(ctx
, desc
, buf_index
);
1547 /* offset = sample_id * 8 (8 = 2 floats containing samplepos.xy) */
1548 LLVMValueRef offset0
= lp_build_mul_imm(uint_bld
, sample_id
, 8);
1549 LLVMValueRef offset1
= LLVMBuildAdd(builder
, offset0
, lp_build_const_int32(gallivm
, 4), "");
1551 LLVMValueRef pos
[4] = {
1552 buffer_load_const(builder
, resource
, offset0
, ctx
->f32
),
1553 buffer_load_const(builder
, resource
, offset1
, ctx
->f32
),
1554 lp_build_const_float(gallivm
, 0),
1555 lp_build_const_float(gallivm
, 0)
1558 return lp_build_gather_values(gallivm
, pos
, 4);
1561 static void declare_system_value(
1562 struct radeon_llvm_context
*radeon_bld
,
1564 const struct tgsi_full_declaration
*decl
)
1566 struct si_shader_context
*ctx
=
1567 si_shader_context(&radeon_bld
->soa
.bld_base
);
1568 struct lp_build_context
*bld
= &radeon_bld
->soa
.bld_base
.base
;
1569 struct gallivm_state
*gallivm
= &radeon_bld
->gallivm
;
1570 LLVMValueRef value
= 0;
1572 switch (decl
->Semantic
.Name
) {
1573 case TGSI_SEMANTIC_INSTANCEID
:
1574 value
= LLVMGetParam(radeon_bld
->main_fn
,
1575 ctx
->param_instance_id
);
1578 case TGSI_SEMANTIC_VERTEXID
:
1579 value
= LLVMBuildAdd(gallivm
->builder
,
1580 LLVMGetParam(radeon_bld
->main_fn
,
1581 ctx
->param_vertex_id
),
1582 LLVMGetParam(radeon_bld
->main_fn
,
1583 SI_PARAM_BASE_VERTEX
), "");
1586 case TGSI_SEMANTIC_VERTEXID_NOBASE
:
1587 value
= LLVMGetParam(radeon_bld
->main_fn
,
1588 ctx
->param_vertex_id
);
1591 case TGSI_SEMANTIC_BASEVERTEX
:
1592 value
= LLVMGetParam(radeon_bld
->main_fn
,
1593 SI_PARAM_BASE_VERTEX
);
1596 case TGSI_SEMANTIC_INVOCATIONID
:
1597 if (ctx
->type
== PIPE_SHADER_TESS_CTRL
)
1598 value
= unpack_param(ctx
, SI_PARAM_REL_IDS
, 8, 5);
1599 else if (ctx
->type
== PIPE_SHADER_GEOMETRY
)
1600 value
= LLVMGetParam(radeon_bld
->main_fn
,
1601 SI_PARAM_GS_INSTANCE_ID
);
1603 assert(!"INVOCATIONID not implemented");
1606 case TGSI_SEMANTIC_POSITION
:
1608 LLVMValueRef pos
[4] = {
1609 LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_POS_X_FLOAT
),
1610 LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_POS_Y_FLOAT
),
1611 LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_POS_Z_FLOAT
),
1612 lp_build_emit_llvm_unary(&radeon_bld
->soa
.bld_base
, TGSI_OPCODE_RCP
,
1613 LLVMGetParam(radeon_bld
->main_fn
,
1614 SI_PARAM_POS_W_FLOAT
)),
1616 value
= lp_build_gather_values(gallivm
, pos
, 4);
1620 case TGSI_SEMANTIC_FACE
:
1621 value
= LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_FRONT_FACE
);
1624 case TGSI_SEMANTIC_SAMPLEID
:
1625 value
= get_sample_id(radeon_bld
);
1628 case TGSI_SEMANTIC_SAMPLEPOS
: {
1629 LLVMValueRef pos
[4] = {
1630 LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_POS_X_FLOAT
),
1631 LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_POS_Y_FLOAT
),
1632 lp_build_const_float(gallivm
, 0),
1633 lp_build_const_float(gallivm
, 0)
1635 pos
[0] = lp_build_emit_llvm_unary(&radeon_bld
->soa
.bld_base
,
1636 TGSI_OPCODE_FRC
, pos
[0]);
1637 pos
[1] = lp_build_emit_llvm_unary(&radeon_bld
->soa
.bld_base
,
1638 TGSI_OPCODE_FRC
, pos
[1]);
1639 value
= lp_build_gather_values(gallivm
, pos
, 4);
1643 case TGSI_SEMANTIC_SAMPLEMASK
:
1644 /* This can only occur with the OpenGL Core profile, which
1645 * doesn't support smoothing.
1647 value
= LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_SAMPLE_COVERAGE
);
1650 case TGSI_SEMANTIC_TESSCOORD
:
1652 LLVMValueRef coord
[4] = {
1653 LLVMGetParam(radeon_bld
->main_fn
, ctx
->param_tes_u
),
1654 LLVMGetParam(radeon_bld
->main_fn
, ctx
->param_tes_v
),
1659 /* For triangles, the vector should be (u, v, 1-u-v). */
1660 if (ctx
->shader
->selector
->info
.properties
[TGSI_PROPERTY_TES_PRIM_MODE
] ==
1661 PIPE_PRIM_TRIANGLES
)
1662 coord
[2] = lp_build_sub(bld
, bld
->one
,
1663 lp_build_add(bld
, coord
[0], coord
[1]));
1665 value
= lp_build_gather_values(gallivm
, coord
, 4);
1669 case TGSI_SEMANTIC_VERTICESIN
:
1670 value
= unpack_param(ctx
, SI_PARAM_TCS_OUT_LAYOUT
, 26, 6);
1673 case TGSI_SEMANTIC_TESSINNER
:
1674 case TGSI_SEMANTIC_TESSOUTER
:
1676 LLVMValueRef rw_buffers
, buffer
, base
, addr
;
1677 int param
= si_shader_io_get_unique_index(decl
->Semantic
.Name
, 0);
1679 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
1680 SI_PARAM_RW_BUFFERS
);
1681 buffer
= build_indexed_load_const(ctx
, rw_buffers
,
1682 lp_build_const_int32(gallivm
, SI_HS_RING_TESS_OFFCHIP
));
1684 base
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, ctx
->param_oc_lds
);
1685 addr
= get_tcs_tes_buffer_address(ctx
, NULL
,
1686 lp_build_const_int32(gallivm
, param
));
1688 value
= buffer_load(&radeon_bld
->soa
.bld_base
, TGSI_TYPE_FLOAT
,
1689 ~0, buffer
, base
, addr
);
1694 case TGSI_SEMANTIC_DEFAULT_TESSOUTER_SI
:
1695 case TGSI_SEMANTIC_DEFAULT_TESSINNER_SI
:
1697 LLVMValueRef buf
, slot
, val
[4];
1700 slot
= lp_build_const_int32(gallivm
, SI_HS_CONST_DEFAULT_TESS_LEVELS
);
1701 buf
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_RW_BUFFERS
);
1702 buf
= build_indexed_load_const(ctx
, buf
, slot
);
1703 offset
= decl
->Semantic
.Name
== TGSI_SEMANTIC_DEFAULT_TESSINNER_SI
? 4 : 0;
1705 for (i
= 0; i
< 4; i
++)
1706 val
[i
] = buffer_load_const(gallivm
->builder
, buf
,
1707 lp_build_const_int32(gallivm
, (offset
+ i
) * 4),
1709 value
= lp_build_gather_values(gallivm
, val
, 4);
1713 case TGSI_SEMANTIC_PRIMID
:
1714 value
= get_primitive_id(&radeon_bld
->soa
.bld_base
, 0);
1717 case TGSI_SEMANTIC_GRID_SIZE
:
1718 value
= LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_GRID_SIZE
);
1721 case TGSI_SEMANTIC_BLOCK_SIZE
:
1723 LLVMValueRef values
[3];
1725 unsigned *properties
= ctx
->shader
->selector
->info
.properties
;
1726 unsigned sizes
[3] = {
1727 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH
],
1728 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT
],
1729 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH
]
1732 for (i
= 0; i
< 3; ++i
)
1733 values
[i
] = lp_build_const_int32(gallivm
, sizes
[i
]);
1735 value
= lp_build_gather_values(gallivm
, values
, 3);
1739 case TGSI_SEMANTIC_BLOCK_ID
:
1740 value
= LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_BLOCK_ID
);
1743 case TGSI_SEMANTIC_THREAD_ID
:
1744 value
= LLVMGetParam(radeon_bld
->main_fn
, SI_PARAM_THREAD_ID
);
1747 #if HAVE_LLVM >= 0x0309
1748 case TGSI_SEMANTIC_HELPER_INVOCATION
:
1749 value
= lp_build_intrinsic(gallivm
->builder
,
1750 "llvm.amdgcn.ps.live",
1752 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1753 value
= LLVMBuildNot(gallivm
->builder
, value
, "");
1754 value
= LLVMBuildSExt(gallivm
->builder
, value
, ctx
->i32
, "");
1759 assert(!"unknown system value");
1763 radeon_bld
->system_values
[index
] = value
;
1766 static void declare_compute_memory(struct radeon_llvm_context
*radeon_bld
,
1767 const struct tgsi_full_declaration
*decl
)
1769 struct si_shader_context
*ctx
=
1770 si_shader_context(&radeon_bld
->soa
.bld_base
);
1771 struct si_shader_selector
*sel
= ctx
->shader
->selector
;
1772 struct gallivm_state
*gallivm
= &radeon_bld
->gallivm
;
1774 LLVMTypeRef i8p
= LLVMPointerType(ctx
->i8
, LOCAL_ADDR_SPACE
);
1777 assert(decl
->Declaration
.MemType
== TGSI_MEMORY_TYPE_SHARED
);
1778 assert(decl
->Range
.First
== decl
->Range
.Last
);
1779 assert(!ctx
->shared_memory
);
1781 var
= LLVMAddGlobalInAddressSpace(gallivm
->module
,
1782 LLVMArrayType(ctx
->i8
, sel
->local_size
),
1785 LLVMSetAlignment(var
, 4);
1787 ctx
->shared_memory
= LLVMBuildBitCast(gallivm
->builder
, var
, i8p
, "");
1790 static LLVMValueRef
fetch_constant(
1791 struct lp_build_tgsi_context
*bld_base
,
1792 const struct tgsi_full_src_register
*reg
,
1793 enum tgsi_opcode_type type
,
1796 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1797 struct lp_build_context
*base
= &bld_base
->base
;
1798 const struct tgsi_ind_register
*ireg
= ®
->Indirect
;
1801 LLVMValueRef addr
, bufp
;
1802 LLVMValueRef result
;
1804 if (swizzle
== LP_CHAN_ALL
) {
1806 LLVMValueRef values
[4];
1807 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; ++chan
)
1808 values
[chan
] = fetch_constant(bld_base
, reg
, type
, chan
);
1810 return lp_build_gather_values(bld_base
->base
.gallivm
, values
, 4);
1813 buf
= reg
->Register
.Dimension
? reg
->Dimension
.Index
: 0;
1814 idx
= reg
->Register
.Index
* 4 + swizzle
;
1816 if (!reg
->Register
.Indirect
&& !reg
->Dimension
.Indirect
) {
1817 if (!tgsi_type_is_64bit(type
))
1818 return bitcast(bld_base
, type
, ctx
->constants
[buf
][idx
]);
1820 return radeon_llvm_emit_fetch_64bit(bld_base
, type
,
1821 ctx
->constants
[buf
][idx
],
1822 ctx
->constants
[buf
][idx
+ 1]);
1826 if (reg
->Register
.Dimension
&& reg
->Dimension
.Indirect
) {
1827 LLVMValueRef ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_CONST_BUFFERS
);
1829 index
= get_bounded_indirect_index(ctx
, ®
->DimIndirect
,
1830 reg
->Dimension
.Index
,
1831 SI_NUM_CONST_BUFFERS
);
1832 bufp
= build_indexed_load_const(ctx
, ptr
, index
);
1834 bufp
= ctx
->const_buffers
[buf
];
1836 addr
= ctx
->radeon_bld
.soa
.addr
[ireg
->Index
][ireg
->Swizzle
];
1837 addr
= LLVMBuildLoad(base
->gallivm
->builder
, addr
, "load addr reg");
1838 addr
= lp_build_mul_imm(&bld_base
->uint_bld
, addr
, 16);
1839 addr
= lp_build_add(&bld_base
->uint_bld
, addr
,
1840 lp_build_const_int32(base
->gallivm
, idx
* 4));
1842 result
= buffer_load_const(base
->gallivm
->builder
, bufp
,
1845 if (!tgsi_type_is_64bit(type
))
1846 result
= bitcast(bld_base
, type
, result
);
1848 LLVMValueRef addr2
, result2
;
1849 addr2
= ctx
->radeon_bld
.soa
.addr
[ireg
->Index
][ireg
->Swizzle
+ 1];
1850 addr2
= LLVMBuildLoad(base
->gallivm
->builder
, addr2
, "load addr reg2");
1851 addr2
= lp_build_mul_imm(&bld_base
->uint_bld
, addr2
, 16);
1852 addr2
= lp_build_add(&bld_base
->uint_bld
, addr2
,
1853 lp_build_const_int32(base
->gallivm
, idx
* 4));
1855 result2
= buffer_load_const(base
->gallivm
->builder
, ctx
->const_buffers
[buf
],
1858 result
= radeon_llvm_emit_fetch_64bit(bld_base
, type
,
1864 /* Upper 16 bits must be zero. */
1865 static LLVMValueRef
si_llvm_pack_two_int16(struct gallivm_state
*gallivm
,
1866 LLVMValueRef val
[2])
1868 return LLVMBuildOr(gallivm
->builder
, val
[0],
1869 LLVMBuildShl(gallivm
->builder
, val
[1],
1870 lp_build_const_int32(gallivm
, 16),
1874 /* Upper 16 bits are ignored and will be dropped. */
1875 static LLVMValueRef
si_llvm_pack_two_int32_as_int16(struct gallivm_state
*gallivm
,
1876 LLVMValueRef val
[2])
1878 LLVMValueRef v
[2] = {
1879 LLVMBuildAnd(gallivm
->builder
, val
[0],
1880 lp_build_const_int32(gallivm
, 0xffff), ""),
1883 return si_llvm_pack_two_int16(gallivm
, v
);
1886 /* Initialize arguments for the shader export intrinsic */
1887 static void si_llvm_init_export_args(struct lp_build_tgsi_context
*bld_base
,
1888 LLVMValueRef
*values
,
1892 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
1893 struct lp_build_context
*uint
=
1894 &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
1895 struct lp_build_context
*base
= &bld_base
->base
;
1896 struct gallivm_state
*gallivm
= base
->gallivm
;
1897 LLVMBuilderRef builder
= base
->gallivm
->builder
;
1898 LLVMValueRef val
[4];
1899 unsigned spi_shader_col_format
= V_028714_SPI_SHADER_32_ABGR
;
1903 /* Default is 0xf. Adjusted below depending on the format. */
1904 args
[0] = lp_build_const_int32(base
->gallivm
, 0xf); /* writemask */
1906 /* Specify whether the EXEC mask represents the valid mask */
1907 args
[1] = uint
->zero
;
1909 /* Specify whether this is the last export */
1910 args
[2] = uint
->zero
;
1912 /* Specify the target we are exporting */
1913 args
[3] = lp_build_const_int32(base
->gallivm
, target
);
1915 if (ctx
->type
== PIPE_SHADER_FRAGMENT
) {
1916 const union si_shader_key
*key
= &ctx
->shader
->key
;
1917 unsigned col_formats
= key
->ps
.epilog
.spi_shader_col_format
;
1918 int cbuf
= target
- V_008DFC_SQ_EXP_MRT
;
1920 assert(cbuf
>= 0 && cbuf
< 8);
1921 spi_shader_col_format
= (col_formats
>> (cbuf
* 4)) & 0xf;
1922 is_int8
= (key
->ps
.epilog
.color_is_int8
>> cbuf
) & 0x1;
1925 args
[4] = uint
->zero
; /* COMPR flag */
1926 args
[5] = base
->undef
;
1927 args
[6] = base
->undef
;
1928 args
[7] = base
->undef
;
1929 args
[8] = base
->undef
;
1931 switch (spi_shader_col_format
) {
1932 case V_028714_SPI_SHADER_ZERO
:
1933 args
[0] = uint
->zero
; /* writemask */
1934 args
[3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_NULL
);
1937 case V_028714_SPI_SHADER_32_R
:
1938 args
[0] = uint
->one
; /* writemask */
1939 args
[5] = values
[0];
1942 case V_028714_SPI_SHADER_32_GR
:
1943 args
[0] = lp_build_const_int32(base
->gallivm
, 0x3); /* writemask */
1944 args
[5] = values
[0];
1945 args
[6] = values
[1];
1948 case V_028714_SPI_SHADER_32_AR
:
1949 args
[0] = lp_build_const_int32(base
->gallivm
, 0x9); /* writemask */
1950 args
[5] = values
[0];
1951 args
[8] = values
[3];
1954 case V_028714_SPI_SHADER_FP16_ABGR
:
1955 args
[4] = uint
->one
; /* COMPR flag */
1957 for (chan
= 0; chan
< 2; chan
++) {
1958 LLVMValueRef pack_args
[2] = {
1960 values
[2 * chan
+ 1]
1962 LLVMValueRef packed
;
1964 packed
= lp_build_intrinsic(base
->gallivm
->builder
,
1966 ctx
->i32
, pack_args
, 2,
1967 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
1969 LLVMBuildBitCast(base
->gallivm
->builder
,
1970 packed
, ctx
->f32
, "");
1974 case V_028714_SPI_SHADER_UNORM16_ABGR
:
1975 for (chan
= 0; chan
< 4; chan
++) {
1976 val
[chan
] = radeon_llvm_saturate(bld_base
, values
[chan
]);
1977 val
[chan
] = LLVMBuildFMul(builder
, val
[chan
],
1978 lp_build_const_float(gallivm
, 65535), "");
1979 val
[chan
] = LLVMBuildFAdd(builder
, val
[chan
],
1980 lp_build_const_float(gallivm
, 0.5), "");
1981 val
[chan
] = LLVMBuildFPToUI(builder
, val
[chan
],
1985 args
[4] = uint
->one
; /* COMPR flag */
1986 args
[5] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
1987 si_llvm_pack_two_int16(gallivm
, val
));
1988 args
[6] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
1989 si_llvm_pack_two_int16(gallivm
, val
+2));
1992 case V_028714_SPI_SHADER_SNORM16_ABGR
:
1993 for (chan
= 0; chan
< 4; chan
++) {
1994 /* Clamp between [-1, 1]. */
1995 val
[chan
] = lp_build_emit_llvm_binary(bld_base
, TGSI_OPCODE_MIN
,
1997 lp_build_const_float(gallivm
, 1));
1998 val
[chan
] = lp_build_emit_llvm_binary(bld_base
, TGSI_OPCODE_MAX
,
2000 lp_build_const_float(gallivm
, -1));
2001 /* Convert to a signed integer in [-32767, 32767]. */
2002 val
[chan
] = LLVMBuildFMul(builder
, val
[chan
],
2003 lp_build_const_float(gallivm
, 32767), "");
2004 /* If positive, add 0.5, else add -0.5. */
2005 val
[chan
] = LLVMBuildFAdd(builder
, val
[chan
],
2006 LLVMBuildSelect(builder
,
2007 LLVMBuildFCmp(builder
, LLVMRealOGE
,
2008 val
[chan
], base
->zero
, ""),
2009 lp_build_const_float(gallivm
, 0.5),
2010 lp_build_const_float(gallivm
, -0.5), ""), "");
2011 val
[chan
] = LLVMBuildFPToSI(builder
, val
[chan
], ctx
->i32
, "");
2014 args
[4] = uint
->one
; /* COMPR flag */
2015 args
[5] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2016 si_llvm_pack_two_int32_as_int16(gallivm
, val
));
2017 args
[6] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2018 si_llvm_pack_two_int32_as_int16(gallivm
, val
+2));
2021 case V_028714_SPI_SHADER_UINT16_ABGR
: {
2022 LLVMValueRef max
= lp_build_const_int32(gallivm
, is_int8
?
2025 for (chan
= 0; chan
< 4; chan
++) {
2026 val
[chan
] = bitcast(bld_base
, TGSI_TYPE_UNSIGNED
, values
[chan
]);
2027 val
[chan
] = lp_build_emit_llvm_binary(bld_base
, TGSI_OPCODE_UMIN
,
2031 args
[4] = uint
->one
; /* COMPR flag */
2032 args
[5] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2033 si_llvm_pack_two_int16(gallivm
, val
));
2034 args
[6] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2035 si_llvm_pack_two_int16(gallivm
, val
+2));
2039 case V_028714_SPI_SHADER_SINT16_ABGR
: {
2040 LLVMValueRef max
= lp_build_const_int32(gallivm
, is_int8
?
2042 LLVMValueRef min
= lp_build_const_int32(gallivm
, is_int8
?
2045 for (chan
= 0; chan
< 4; chan
++) {
2046 val
[chan
] = bitcast(bld_base
, TGSI_TYPE_UNSIGNED
, values
[chan
]);
2047 val
[chan
] = lp_build_emit_llvm_binary(bld_base
,
2050 val
[chan
] = lp_build_emit_llvm_binary(bld_base
,
2055 args
[4] = uint
->one
; /* COMPR flag */
2056 args
[5] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2057 si_llvm_pack_two_int32_as_int16(gallivm
, val
));
2058 args
[6] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2059 si_llvm_pack_two_int32_as_int16(gallivm
, val
+2));
2063 case V_028714_SPI_SHADER_32_ABGR
:
2064 memcpy(&args
[5], values
, sizeof(values
[0]) * 4);
2069 static void si_alpha_test(struct lp_build_tgsi_context
*bld_base
,
2072 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2073 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2075 if (ctx
->shader
->key
.ps
.epilog
.alpha_func
!= PIPE_FUNC_NEVER
) {
2076 LLVMValueRef alpha_ref
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2077 SI_PARAM_ALPHA_REF
);
2079 LLVMValueRef alpha_pass
=
2080 lp_build_cmp(&bld_base
->base
,
2081 ctx
->shader
->key
.ps
.epilog
.alpha_func
,
2084 lp_build_select(&bld_base
->base
,
2086 lp_build_const_float(gallivm
, 1.0f
),
2087 lp_build_const_float(gallivm
, -1.0f
));
2089 lp_build_intrinsic(gallivm
->builder
, "llvm.AMDGPU.kill",
2090 ctx
->voidt
, &arg
, 1, 0);
2092 lp_build_intrinsic(gallivm
->builder
, "llvm.AMDGPU.kilp",
2093 ctx
->voidt
, NULL
, 0, 0);
2097 static LLVMValueRef
si_scale_alpha_by_sample_mask(struct lp_build_tgsi_context
*bld_base
,
2099 unsigned samplemask_param
)
2101 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2102 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2103 LLVMValueRef coverage
;
2105 /* alpha = alpha * popcount(coverage) / SI_NUM_SMOOTH_AA_SAMPLES */
2106 coverage
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2108 coverage
= bitcast(bld_base
, TGSI_TYPE_SIGNED
, coverage
);
2110 coverage
= lp_build_intrinsic(gallivm
->builder
, "llvm.ctpop.i32",
2112 &coverage
, 1, LLVMReadNoneAttribute
);
2114 coverage
= LLVMBuildUIToFP(gallivm
->builder
, coverage
,
2117 coverage
= LLVMBuildFMul(gallivm
->builder
, coverage
,
2118 lp_build_const_float(gallivm
,
2119 1.0 / SI_NUM_SMOOTH_AA_SAMPLES
), "");
2121 return LLVMBuildFMul(gallivm
->builder
, alpha
, coverage
, "");
2124 static void si_llvm_emit_clipvertex(struct lp_build_tgsi_context
*bld_base
,
2125 LLVMValueRef (*pos
)[9], LLVMValueRef
*out_elts
)
2127 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2128 struct lp_build_context
*base
= &bld_base
->base
;
2129 struct lp_build_context
*uint
= &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
2132 unsigned const_chan
;
2133 LLVMValueRef base_elt
;
2134 LLVMValueRef ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_RW_BUFFERS
);
2135 LLVMValueRef constbuf_index
= lp_build_const_int32(base
->gallivm
,
2136 SI_VS_CONST_CLIP_PLANES
);
2137 LLVMValueRef const_resource
= build_indexed_load_const(ctx
, ptr
, constbuf_index
);
2139 for (reg_index
= 0; reg_index
< 2; reg_index
++) {
2140 LLVMValueRef
*args
= pos
[2 + reg_index
];
2145 args
[8] = lp_build_const_float(base
->gallivm
, 0.0f
);
2147 /* Compute dot products of position and user clip plane vectors */
2148 for (chan
= 0; chan
< TGSI_NUM_CHANNELS
; chan
++) {
2149 for (const_chan
= 0; const_chan
< TGSI_NUM_CHANNELS
; const_chan
++) {
2150 args
[1] = lp_build_const_int32(base
->gallivm
,
2151 ((reg_index
* 4 + chan
) * 4 +
2153 base_elt
= buffer_load_const(base
->gallivm
->builder
, const_resource
,
2156 lp_build_add(base
, args
[5 + chan
],
2157 lp_build_mul(base
, base_elt
,
2158 out_elts
[const_chan
]));
2162 args
[0] = lp_build_const_int32(base
->gallivm
, 0xf);
2163 args
[1] = uint
->zero
;
2164 args
[2] = uint
->zero
;
2165 args
[3] = lp_build_const_int32(base
->gallivm
,
2166 V_008DFC_SQ_EXP_POS
+ 2 + reg_index
);
2167 args
[4] = uint
->zero
;
2171 static void si_dump_streamout(struct pipe_stream_output_info
*so
)
2175 if (so
->num_outputs
)
2176 fprintf(stderr
, "STREAMOUT\n");
2178 for (i
= 0; i
< so
->num_outputs
; i
++) {
2179 unsigned mask
= ((1 << so
->output
[i
].num_components
) - 1) <<
2180 so
->output
[i
].start_component
;
2181 fprintf(stderr
, " %i: BUF%i[%i..%i] <- OUT[%i].%s%s%s%s\n",
2182 i
, so
->output
[i
].output_buffer
,
2183 so
->output
[i
].dst_offset
, so
->output
[i
].dst_offset
+ so
->output
[i
].num_components
- 1,
2184 so
->output
[i
].register_index
,
2185 mask
& 1 ? "x" : "",
2186 mask
& 2 ? "y" : "",
2187 mask
& 4 ? "z" : "",
2188 mask
& 8 ? "w" : "");
2192 /* On SI, the vertex shader is responsible for writing streamout data
2194 static void si_llvm_emit_streamout(struct si_shader_context
*ctx
,
2195 struct si_shader_output_values
*outputs
,
2198 struct pipe_stream_output_info
*so
= &ctx
->shader
->selector
->so
;
2199 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
2200 LLVMBuilderRef builder
= gallivm
->builder
;
2202 struct lp_build_if_state if_ctx
;
2204 /* Get bits [22:16], i.e. (so_param >> 16) & 127; */
2205 LLVMValueRef so_vtx_count
=
2206 unpack_param(ctx
, ctx
->param_streamout_config
, 16, 7);
2208 LLVMValueRef tid
= get_thread_id(ctx
);
2210 /* can_emit = tid < so_vtx_count; */
2211 LLVMValueRef can_emit
=
2212 LLVMBuildICmp(builder
, LLVMIntULT
, tid
, so_vtx_count
, "");
2214 LLVMValueRef stream_id
=
2215 unpack_param(ctx
, ctx
->param_streamout_config
, 24, 2);
2217 /* Emit the streamout code conditionally. This actually avoids
2218 * out-of-bounds buffer access. The hw tells us via the SGPR
2219 * (so_vtx_count) which threads are allowed to emit streamout data. */
2220 lp_build_if(&if_ctx
, gallivm
, can_emit
);
2222 /* The buffer offset is computed as follows:
2223 * ByteOffset = streamout_offset[buffer_id]*4 +
2224 * (streamout_write_index + thread_id)*stride[buffer_id] +
2228 LLVMValueRef so_write_index
=
2229 LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2230 ctx
->param_streamout_write_index
);
2232 /* Compute (streamout_write_index + thread_id). */
2233 so_write_index
= LLVMBuildAdd(builder
, so_write_index
, tid
, "");
2235 /* Compute the write offset for each enabled buffer. */
2236 LLVMValueRef so_write_offset
[4] = {};
2237 for (i
= 0; i
< 4; i
++) {
2241 LLVMValueRef so_offset
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2242 ctx
->param_streamout_offset
[i
]);
2243 so_offset
= LLVMBuildMul(builder
, so_offset
, LLVMConstInt(ctx
->i32
, 4, 0), "");
2245 so_write_offset
[i
] = LLVMBuildMul(builder
, so_write_index
,
2246 LLVMConstInt(ctx
->i32
, so
->stride
[i
]*4, 0), "");
2247 so_write_offset
[i
] = LLVMBuildAdd(builder
, so_write_offset
[i
], so_offset
, "");
2250 /* Write streamout data. */
2251 for (i
= 0; i
< so
->num_outputs
; i
++) {
2252 unsigned buf_idx
= so
->output
[i
].output_buffer
;
2253 unsigned reg
= so
->output
[i
].register_index
;
2254 unsigned start
= so
->output
[i
].start_component
;
2255 unsigned num_comps
= so
->output
[i
].num_components
;
2256 unsigned stream
= so
->output
[i
].stream
;
2257 LLVMValueRef out
[4];
2258 struct lp_build_if_state if_ctx_stream
;
2260 assert(num_comps
&& num_comps
<= 4);
2261 if (!num_comps
|| num_comps
> 4)
2267 /* Load the output as int. */
2268 for (j
= 0; j
< num_comps
; j
++) {
2269 out
[j
] = LLVMBuildBitCast(builder
,
2270 outputs
[reg
].values
[start
+j
],
2274 /* Pack the output. */
2275 LLVMValueRef vdata
= NULL
;
2277 switch (num_comps
) {
2278 case 1: /* as i32 */
2281 case 2: /* as v2i32 */
2282 case 3: /* as v4i32 (aligned to 4) */
2283 case 4: /* as v4i32 */
2284 vdata
= LLVMGetUndef(LLVMVectorType(ctx
->i32
, util_next_power_of_two(num_comps
)));
2285 for (j
= 0; j
< num_comps
; j
++) {
2286 vdata
= LLVMBuildInsertElement(builder
, vdata
, out
[j
],
2287 LLVMConstInt(ctx
->i32
, j
, 0), "");
2292 LLVMValueRef can_emit_stream
=
2293 LLVMBuildICmp(builder
, LLVMIntEQ
,
2295 lp_build_const_int32(gallivm
, stream
), "");
2297 lp_build_if(&if_ctx_stream
, gallivm
, can_emit_stream
);
2298 build_tbuffer_store_dwords(ctx
, ctx
->so_buffers
[buf_idx
],
2300 so_write_offset
[buf_idx
],
2301 LLVMConstInt(ctx
->i32
, 0, 0),
2302 so
->output
[i
].dst_offset
*4);
2303 lp_build_endif(&if_ctx_stream
);
2306 lp_build_endif(&if_ctx
);
2310 /* Generate export instructions for hardware VS shader stage */
2311 static void si_llvm_export_vs(struct lp_build_tgsi_context
*bld_base
,
2312 struct si_shader_output_values
*outputs
,
2315 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2316 struct si_shader
*shader
= ctx
->shader
;
2317 struct lp_build_context
*base
= &bld_base
->base
;
2318 struct lp_build_context
*uint
=
2319 &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
2320 LLVMValueRef args
[9];
2321 LLVMValueRef pos_args
[4][9] = { { 0 } };
2322 LLVMValueRef psize_value
= NULL
, edgeflag_value
= NULL
, layer_value
= NULL
, viewport_index_value
= NULL
;
2323 unsigned semantic_name
, semantic_index
;
2325 unsigned param_count
= 0;
2329 if (outputs
&& ctx
->shader
->selector
->so
.num_outputs
) {
2330 si_llvm_emit_streamout(ctx
, outputs
, noutput
);
2333 for (i
= 0; i
< noutput
; i
++) {
2334 semantic_name
= outputs
[i
].name
;
2335 semantic_index
= outputs
[i
].sid
;
2338 /* Select the correct target */
2339 switch(semantic_name
) {
2340 case TGSI_SEMANTIC_PSIZE
:
2341 psize_value
= outputs
[i
].values
[0];
2343 case TGSI_SEMANTIC_EDGEFLAG
:
2344 edgeflag_value
= outputs
[i
].values
[0];
2346 case TGSI_SEMANTIC_LAYER
:
2347 layer_value
= outputs
[i
].values
[0];
2348 semantic_name
= TGSI_SEMANTIC_GENERIC
;
2349 goto handle_semantic
;
2350 case TGSI_SEMANTIC_VIEWPORT_INDEX
:
2351 viewport_index_value
= outputs
[i
].values
[0];
2352 semantic_name
= TGSI_SEMANTIC_GENERIC
;
2353 goto handle_semantic
;
2354 case TGSI_SEMANTIC_POSITION
:
2355 target
= V_008DFC_SQ_EXP_POS
;
2357 case TGSI_SEMANTIC_COLOR
:
2358 case TGSI_SEMANTIC_BCOLOR
:
2359 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
2360 assert(i
< ARRAY_SIZE(shader
->info
.vs_output_param_offset
));
2361 shader
->info
.vs_output_param_offset
[i
] = param_count
;
2364 case TGSI_SEMANTIC_CLIPDIST
:
2365 target
= V_008DFC_SQ_EXP_POS
+ 2 + semantic_index
;
2367 case TGSI_SEMANTIC_CLIPVERTEX
:
2368 si_llvm_emit_clipvertex(bld_base
, pos_args
, outputs
[i
].values
);
2370 case TGSI_SEMANTIC_PRIMID
:
2371 case TGSI_SEMANTIC_FOG
:
2372 case TGSI_SEMANTIC_TEXCOORD
:
2373 case TGSI_SEMANTIC_GENERIC
:
2374 target
= V_008DFC_SQ_EXP_PARAM
+ param_count
;
2375 assert(i
< ARRAY_SIZE(shader
->info
.vs_output_param_offset
));
2376 shader
->info
.vs_output_param_offset
[i
] = param_count
;
2382 "Warning: SI unhandled vs output type:%d\n",
2386 si_llvm_init_export_args(bld_base
, outputs
[i
].values
, target
, args
);
2388 if (target
>= V_008DFC_SQ_EXP_POS
&&
2389 target
<= (V_008DFC_SQ_EXP_POS
+ 3)) {
2390 memcpy(pos_args
[target
- V_008DFC_SQ_EXP_POS
],
2391 args
, sizeof(args
));
2393 lp_build_intrinsic(base
->gallivm
->builder
,
2394 "llvm.SI.export", ctx
->voidt
,
2398 if (semantic_name
== TGSI_SEMANTIC_CLIPDIST
) {
2399 semantic_name
= TGSI_SEMANTIC_GENERIC
;
2400 goto handle_semantic
;
2404 shader
->info
.nr_param_exports
= param_count
;
2406 /* We need to add the position output manually if it's missing. */
2407 if (!pos_args
[0][0]) {
2408 pos_args
[0][0] = lp_build_const_int32(base
->gallivm
, 0xf); /* writemask */
2409 pos_args
[0][1] = uint
->zero
; /* EXEC mask */
2410 pos_args
[0][2] = uint
->zero
; /* last export? */
2411 pos_args
[0][3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_POS
);
2412 pos_args
[0][4] = uint
->zero
; /* COMPR flag */
2413 pos_args
[0][5] = base
->zero
; /* X */
2414 pos_args
[0][6] = base
->zero
; /* Y */
2415 pos_args
[0][7] = base
->zero
; /* Z */
2416 pos_args
[0][8] = base
->one
; /* W */
2419 /* Write the misc vector (point size, edgeflag, layer, viewport). */
2420 if (shader
->selector
->info
.writes_psize
||
2421 shader
->selector
->info
.writes_edgeflag
||
2422 shader
->selector
->info
.writes_viewport_index
||
2423 shader
->selector
->info
.writes_layer
) {
2424 pos_args
[1][0] = lp_build_const_int32(base
->gallivm
, /* writemask */
2425 shader
->selector
->info
.writes_psize
|
2426 (shader
->selector
->info
.writes_edgeflag
<< 1) |
2427 (shader
->selector
->info
.writes_layer
<< 2) |
2428 (shader
->selector
->info
.writes_viewport_index
<< 3));
2429 pos_args
[1][1] = uint
->zero
; /* EXEC mask */
2430 pos_args
[1][2] = uint
->zero
; /* last export? */
2431 pos_args
[1][3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_POS
+ 1);
2432 pos_args
[1][4] = uint
->zero
; /* COMPR flag */
2433 pos_args
[1][5] = base
->zero
; /* X */
2434 pos_args
[1][6] = base
->zero
; /* Y */
2435 pos_args
[1][7] = base
->zero
; /* Z */
2436 pos_args
[1][8] = base
->zero
; /* W */
2438 if (shader
->selector
->info
.writes_psize
)
2439 pos_args
[1][5] = psize_value
;
2441 if (shader
->selector
->info
.writes_edgeflag
) {
2442 /* The output is a float, but the hw expects an integer
2443 * with the first bit containing the edge flag. */
2444 edgeflag_value
= LLVMBuildFPToUI(base
->gallivm
->builder
,
2447 edgeflag_value
= lp_build_min(&bld_base
->int_bld
,
2449 bld_base
->int_bld
.one
);
2451 /* The LLVM intrinsic expects a float. */
2452 pos_args
[1][6] = LLVMBuildBitCast(base
->gallivm
->builder
,
2457 if (shader
->selector
->info
.writes_layer
)
2458 pos_args
[1][7] = layer_value
;
2460 if (shader
->selector
->info
.writes_viewport_index
)
2461 pos_args
[1][8] = viewport_index_value
;
2464 for (i
= 0; i
< 4; i
++)
2466 shader
->info
.nr_pos_exports
++;
2469 for (i
= 0; i
< 4; i
++) {
2470 if (!pos_args
[i
][0])
2473 /* Specify the target we are exporting */
2474 pos_args
[i
][3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_POS
+ pos_idx
++);
2476 if (pos_idx
== shader
->info
.nr_pos_exports
)
2477 /* Specify that this is the last export */
2478 pos_args
[i
][2] = uint
->one
;
2480 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
2481 ctx
->voidt
, pos_args
[i
], 9, 0);
2485 static void si_copy_tcs_inputs(struct lp_build_tgsi_context
*bld_base
)
2487 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2488 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2489 LLVMValueRef invocation_id
, rw_buffers
, buffer
, buffer_offset
;
2490 LLVMValueRef lds_vertex_stride
, lds_vertex_offset
, lds_base
;
2493 invocation_id
= unpack_param(ctx
, SI_PARAM_REL_IDS
, 8, 5);
2495 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_RW_BUFFERS
);
2496 buffer
= build_indexed_load_const(ctx
, rw_buffers
,
2497 lp_build_const_int32(gallivm
, SI_HS_RING_TESS_OFFCHIP
));
2499 buffer_offset
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, ctx
->param_oc_lds
);
2501 lds_vertex_stride
= unpack_param(ctx
, SI_PARAM_TCS_IN_LAYOUT
, 13, 8);
2502 lds_vertex_offset
= LLVMBuildMul(gallivm
->builder
, invocation_id
,
2503 lds_vertex_stride
, "");
2504 lds_base
= get_tcs_in_current_patch_offset(ctx
);
2505 lds_base
= LLVMBuildAdd(gallivm
->builder
, lds_base
, lds_vertex_offset
, "");
2507 inputs
= ctx
->shader
->key
.tcs
.epilog
.inputs_to_copy
;
2509 unsigned i
= u_bit_scan64(&inputs
);
2511 LLVMValueRef lds_ptr
= LLVMBuildAdd(gallivm
->builder
, lds_base
,
2512 lp_build_const_int32(gallivm
, 4 * i
),
2515 LLVMValueRef buffer_addr
= get_tcs_tes_buffer_address(ctx
,
2517 lp_build_const_int32(gallivm
, i
));
2519 LLVMValueRef value
= lds_load(bld_base
, TGSI_TYPE_SIGNED
, ~0,
2522 build_tbuffer_store_dwords(ctx
, buffer
, value
, 4, buffer_addr
,
2527 static void si_write_tess_factors(struct lp_build_tgsi_context
*bld_base
,
2528 LLVMValueRef rel_patch_id
,
2529 LLVMValueRef invocation_id
,
2530 LLVMValueRef tcs_out_current_patch_data_offset
)
2532 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2533 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2534 struct si_shader
*shader
= ctx
->shader
;
2535 unsigned tess_inner_index
, tess_outer_index
;
2536 LLVMValueRef lds_base
, lds_inner
, lds_outer
, byteoffset
, buffer
;
2537 LLVMValueRef out
[6], vec0
, vec1
, rw_buffers
, tf_base
;
2538 unsigned stride
, outer_comps
, inner_comps
, i
;
2539 struct lp_build_if_state if_ctx
, inner_if_ctx
;
2541 si_llvm_emit_barrier(NULL
, bld_base
, NULL
);
2543 /* Do this only for invocation 0, because the tess levels are per-patch,
2546 * This can't jump, because invocation 0 executes this. It should
2547 * at least mask out the loads and stores for other invocations.
2549 lp_build_if(&if_ctx
, gallivm
,
2550 LLVMBuildICmp(gallivm
->builder
, LLVMIntEQ
,
2551 invocation_id
, bld_base
->uint_bld
.zero
, ""));
2553 /* Determine the layout of one tess factor element in the buffer. */
2554 switch (shader
->key
.tcs
.epilog
.prim_mode
) {
2555 case PIPE_PRIM_LINES
:
2556 stride
= 2; /* 2 dwords, 1 vec2 store */
2560 case PIPE_PRIM_TRIANGLES
:
2561 stride
= 4; /* 4 dwords, 1 vec4 store */
2565 case PIPE_PRIM_QUADS
:
2566 stride
= 6; /* 6 dwords, 2 stores (vec4 + vec2) */
2575 /* Load tess_inner and tess_outer from LDS.
2576 * Any invocation can write them, so we can't get them from a temporary.
2578 tess_inner_index
= si_shader_io_get_unique_index(TGSI_SEMANTIC_TESSINNER
, 0);
2579 tess_outer_index
= si_shader_io_get_unique_index(TGSI_SEMANTIC_TESSOUTER
, 0);
2581 lds_base
= tcs_out_current_patch_data_offset
;
2582 lds_inner
= LLVMBuildAdd(gallivm
->builder
, lds_base
,
2583 lp_build_const_int32(gallivm
,
2584 tess_inner_index
* 4), "");
2585 lds_outer
= LLVMBuildAdd(gallivm
->builder
, lds_base
,
2586 lp_build_const_int32(gallivm
,
2587 tess_outer_index
* 4), "");
2589 for (i
= 0; i
< outer_comps
; i
++)
2590 out
[i
] = lds_load(bld_base
, TGSI_TYPE_SIGNED
, i
, lds_outer
);
2591 for (i
= 0; i
< inner_comps
; i
++)
2592 out
[outer_comps
+i
] = lds_load(bld_base
, TGSI_TYPE_SIGNED
, i
, lds_inner
);
2594 /* Convert the outputs to vectors for stores. */
2595 vec0
= lp_build_gather_values(gallivm
, out
, MIN2(stride
, 4));
2599 vec1
= lp_build_gather_values(gallivm
, out
+4, stride
- 4);
2601 /* Get the buffer. */
2602 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2603 SI_PARAM_RW_BUFFERS
);
2604 buffer
= build_indexed_load_const(ctx
, rw_buffers
,
2605 lp_build_const_int32(gallivm
, SI_HS_RING_TESS_FACTOR
));
2607 /* Get the offset. */
2608 tf_base
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2609 SI_PARAM_TESS_FACTOR_OFFSET
);
2610 byteoffset
= LLVMBuildMul(gallivm
->builder
, rel_patch_id
,
2611 lp_build_const_int32(gallivm
, 4 * stride
), "");
2613 lp_build_if(&inner_if_ctx
, gallivm
,
2614 LLVMBuildICmp(gallivm
->builder
, LLVMIntEQ
,
2615 rel_patch_id
, bld_base
->uint_bld
.zero
, ""));
2617 /* Store the dynamic HS control word. */
2618 build_tbuffer_store_dwords(ctx
, buffer
,
2619 lp_build_const_int32(gallivm
, 0x80000000),
2620 1, lp_build_const_int32(gallivm
, 0), tf_base
, 0);
2622 lp_build_endif(&inner_if_ctx
);
2624 /* Store the tessellation factors. */
2625 build_tbuffer_store_dwords(ctx
, buffer
, vec0
,
2626 MIN2(stride
, 4), byteoffset
, tf_base
, 4);
2628 build_tbuffer_store_dwords(ctx
, buffer
, vec1
,
2629 stride
- 4, byteoffset
, tf_base
, 20);
2630 lp_build_endif(&if_ctx
);
2633 /* This only writes the tessellation factor levels. */
2634 static void si_llvm_emit_tcs_epilogue(struct lp_build_tgsi_context
*bld_base
)
2636 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2637 LLVMValueRef rel_patch_id
, invocation_id
, tf_lds_offset
;
2639 rel_patch_id
= get_rel_patch_id(ctx
);
2640 invocation_id
= unpack_param(ctx
, SI_PARAM_REL_IDS
, 8, 5);
2641 tf_lds_offset
= get_tcs_out_current_patch_data_offset(ctx
);
2643 if (!ctx
->is_monolithic
) {
2644 /* Return epilog parameters from this function. */
2645 LLVMBuilderRef builder
= bld_base
->base
.gallivm
->builder
;
2646 LLVMValueRef ret
= ctx
->return_value
;
2647 LLVMValueRef rw_buffers
, rw0
, rw1
, tf_soffset
;
2650 /* RW_BUFFERS pointer */
2651 rw_buffers
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2652 SI_PARAM_RW_BUFFERS
);
2653 rw_buffers
= LLVMBuildPtrToInt(builder
, rw_buffers
, ctx
->i64
, "");
2654 rw_buffers
= LLVMBuildBitCast(builder
, rw_buffers
, ctx
->v2i32
, "");
2655 rw0
= LLVMBuildExtractElement(builder
, rw_buffers
,
2656 bld_base
->uint_bld
.zero
, "");
2657 rw1
= LLVMBuildExtractElement(builder
, rw_buffers
,
2658 bld_base
->uint_bld
.one
, "");
2659 ret
= LLVMBuildInsertValue(builder
, ret
, rw0
, 0, "");
2660 ret
= LLVMBuildInsertValue(builder
, ret
, rw1
, 1, "");
2662 /* Tess factor buffer soffset is after user SGPRs. */
2663 tf_soffset
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2664 SI_PARAM_TESS_FACTOR_OFFSET
);
2665 ret
= LLVMBuildInsertValue(builder
, ret
, tf_soffset
,
2666 SI_TCS_NUM_USER_SGPR
+ 1, "");
2669 rel_patch_id
= bitcast(bld_base
, TGSI_TYPE_FLOAT
, rel_patch_id
);
2670 invocation_id
= bitcast(bld_base
, TGSI_TYPE_FLOAT
, invocation_id
);
2671 tf_lds_offset
= bitcast(bld_base
, TGSI_TYPE_FLOAT
, tf_lds_offset
);
2673 vgpr
= SI_TCS_NUM_USER_SGPR
+ 2;
2674 ret
= LLVMBuildInsertValue(builder
, ret
, rel_patch_id
, vgpr
++, "");
2675 ret
= LLVMBuildInsertValue(builder
, ret
, invocation_id
, vgpr
++, "");
2676 ret
= LLVMBuildInsertValue(builder
, ret
, tf_lds_offset
, vgpr
++, "");
2677 ctx
->return_value
= ret
;
2681 si_copy_tcs_inputs(bld_base
);
2682 si_write_tess_factors(bld_base
, rel_patch_id
, invocation_id
, tf_lds_offset
);
2685 static void si_llvm_emit_ls_epilogue(struct lp_build_tgsi_context
*bld_base
)
2687 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2688 struct si_shader
*shader
= ctx
->shader
;
2689 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
2690 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2692 LLVMValueRef vertex_id
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2693 ctx
->param_rel_auto_id
);
2694 LLVMValueRef vertex_dw_stride
=
2695 unpack_param(ctx
, SI_PARAM_LS_OUT_LAYOUT
, 13, 8);
2696 LLVMValueRef base_dw_addr
= LLVMBuildMul(gallivm
->builder
, vertex_id
,
2697 vertex_dw_stride
, "");
2699 /* Write outputs to LDS. The next shader (TCS aka HS) will read
2700 * its inputs from it. */
2701 for (i
= 0; i
< info
->num_outputs
; i
++) {
2702 LLVMValueRef
*out_ptr
= ctx
->radeon_bld
.soa
.outputs
[i
];
2703 unsigned name
= info
->output_semantic_name
[i
];
2704 unsigned index
= info
->output_semantic_index
[i
];
2705 int param
= si_shader_io_get_unique_index(name
, index
);
2706 LLVMValueRef dw_addr
= LLVMBuildAdd(gallivm
->builder
, base_dw_addr
,
2707 lp_build_const_int32(gallivm
, param
* 4), "");
2709 for (chan
= 0; chan
< 4; chan
++) {
2710 lds_store(bld_base
, chan
, dw_addr
,
2711 LLVMBuildLoad(gallivm
->builder
, out_ptr
[chan
], ""));
2716 static void si_llvm_emit_es_epilogue(struct lp_build_tgsi_context
*bld_base
)
2718 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2719 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2720 struct si_shader
*es
= ctx
->shader
;
2721 struct tgsi_shader_info
*info
= &es
->selector
->info
;
2722 LLVMValueRef soffset
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2723 ctx
->param_es2gs_offset
);
2727 for (i
= 0; i
< info
->num_outputs
; i
++) {
2728 LLVMValueRef
*out_ptr
=
2729 ctx
->radeon_bld
.soa
.outputs
[i
];
2732 if (info
->output_semantic_name
[i
] == TGSI_SEMANTIC_VIEWPORT_INDEX
||
2733 info
->output_semantic_name
[i
] == TGSI_SEMANTIC_LAYER
)
2736 param_index
= si_shader_io_get_unique_index(info
->output_semantic_name
[i
],
2737 info
->output_semantic_index
[i
]);
2739 for (chan
= 0; chan
< 4; chan
++) {
2740 LLVMValueRef out_val
= LLVMBuildLoad(gallivm
->builder
, out_ptr
[chan
], "");
2741 out_val
= LLVMBuildBitCast(gallivm
->builder
, out_val
, ctx
->i32
, "");
2743 build_tbuffer_store(ctx
,
2746 LLVMGetUndef(ctx
->i32
), soffset
,
2747 (4 * param_index
+ chan
) * 4,
2748 V_008F0C_BUF_DATA_FORMAT_32
,
2749 V_008F0C_BUF_NUM_FORMAT_UINT
,
2755 static void si_llvm_emit_gs_epilogue(struct lp_build_tgsi_context
*bld_base
)
2757 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2758 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2759 LLVMValueRef args
[2];
2761 args
[0] = lp_build_const_int32(gallivm
, SENDMSG_GS_OP_NOP
| SENDMSG_GS_DONE
);
2762 args
[1] = LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_GS_WAVE_ID
);
2763 lp_build_intrinsic(gallivm
->builder
, "llvm.SI.sendmsg",
2764 ctx
->voidt
, args
, 2, LLVMNoUnwindAttribute
);
2767 static void si_llvm_emit_vs_epilogue(struct lp_build_tgsi_context
*bld_base
)
2769 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2770 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
2771 struct tgsi_shader_info
*info
= &ctx
->shader
->selector
->info
;
2772 struct si_shader_output_values
*outputs
= NULL
;
2775 assert(!ctx
->is_gs_copy_shader
);
2777 outputs
= MALLOC((info
->num_outputs
+ 1) * sizeof(outputs
[0]));
2779 /* Vertex color clamping.
2781 * This uses a state constant loaded in a user data SGPR and
2782 * an IF statement is added that clamps all colors if the constant
2785 if (ctx
->type
== PIPE_SHADER_VERTEX
) {
2786 struct lp_build_if_state if_ctx
;
2787 LLVMValueRef cond
= NULL
;
2788 LLVMValueRef addr
, val
;
2790 for (i
= 0; i
< info
->num_outputs
; i
++) {
2791 if (info
->output_semantic_name
[i
] != TGSI_SEMANTIC_COLOR
&&
2792 info
->output_semantic_name
[i
] != TGSI_SEMANTIC_BCOLOR
)
2795 /* We've found a color. */
2797 /* The state is in the first bit of the user SGPR. */
2798 cond
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
2799 SI_PARAM_VS_STATE_BITS
);
2800 cond
= LLVMBuildTrunc(gallivm
->builder
, cond
,
2802 lp_build_if(&if_ctx
, gallivm
, cond
);
2805 for (j
= 0; j
< 4; j
++) {
2806 addr
= ctx
->radeon_bld
.soa
.outputs
[i
][j
];
2807 val
= LLVMBuildLoad(gallivm
->builder
, addr
, "");
2808 val
= radeon_llvm_saturate(bld_base
, val
);
2809 LLVMBuildStore(gallivm
->builder
, val
, addr
);
2814 lp_build_endif(&if_ctx
);
2817 for (i
= 0; i
< info
->num_outputs
; i
++) {
2818 outputs
[i
].name
= info
->output_semantic_name
[i
];
2819 outputs
[i
].sid
= info
->output_semantic_index
[i
];
2821 for (j
= 0; j
< 4; j
++)
2822 outputs
[i
].values
[j
] =
2823 LLVMBuildLoad(gallivm
->builder
,
2824 ctx
->radeon_bld
.soa
.outputs
[i
][j
],
2828 if (ctx
->is_monolithic
) {
2829 /* Export PrimitiveID when PS needs it. */
2830 if (si_vs_exports_prim_id(ctx
->shader
)) {
2831 outputs
[i
].name
= TGSI_SEMANTIC_PRIMID
;
2833 outputs
[i
].values
[0] = bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2834 get_primitive_id(bld_base
, 0));
2835 outputs
[i
].values
[1] = bld_base
->base
.undef
;
2836 outputs
[i
].values
[2] = bld_base
->base
.undef
;
2837 outputs
[i
].values
[3] = bld_base
->base
.undef
;
2841 /* Return the primitive ID from the LLVM function. */
2843 LLVMBuildInsertValue(gallivm
->builder
,
2845 bitcast(bld_base
, TGSI_TYPE_FLOAT
,
2846 get_primitive_id(bld_base
, 0)),
2847 VS_EPILOG_PRIMID_LOC
, "");
2850 si_llvm_export_vs(bld_base
, outputs
, i
);
2854 static void si_export_mrt_z(struct lp_build_tgsi_context
*bld_base
,
2855 LLVMValueRef depth
, LLVMValueRef stencil
,
2856 LLVMValueRef samplemask
)
2858 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2859 struct lp_build_context
*base
= &bld_base
->base
;
2860 struct lp_build_context
*uint
= &bld_base
->uint_bld
;
2861 LLVMValueRef args
[9];
2864 assert(depth
|| stencil
|| samplemask
);
2866 args
[1] = uint
->one
; /* whether the EXEC mask is valid */
2867 args
[2] = uint
->one
; /* DONE bit */
2869 /* Specify the target we are exporting */
2870 args
[3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_MRTZ
);
2872 args
[4] = uint
->zero
; /* COMP flag */
2873 args
[5] = base
->undef
; /* R, depth */
2874 args
[6] = base
->undef
; /* G, stencil test value[0:7], stencil op value[8:15] */
2875 args
[7] = base
->undef
; /* B, sample mask */
2876 args
[8] = base
->undef
; /* A, alpha to mask */
2889 args
[7] = samplemask
;
2893 /* SI (except OLAND) has a bug that it only looks
2894 * at the X writemask component. */
2895 if (ctx
->screen
->b
.chip_class
== SI
&&
2896 ctx
->screen
->b
.family
!= CHIP_OLAND
)
2899 /* Specify which components to enable */
2900 args
[0] = lp_build_const_int32(base
->gallivm
, mask
);
2902 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
2903 ctx
->voidt
, args
, 9, 0);
2906 static void si_export_mrt_color(struct lp_build_tgsi_context
*bld_base
,
2907 LLVMValueRef
*color
, unsigned index
,
2908 unsigned samplemask_param
,
2911 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2912 struct lp_build_context
*base
= &bld_base
->base
;
2916 if (ctx
->shader
->key
.ps
.epilog
.clamp_color
)
2917 for (i
= 0; i
< 4; i
++)
2918 color
[i
] = radeon_llvm_saturate(bld_base
, color
[i
]);
2921 if (ctx
->shader
->key
.ps
.epilog
.alpha_to_one
)
2922 color
[3] = base
->one
;
2926 ctx
->shader
->key
.ps
.epilog
.alpha_func
!= PIPE_FUNC_ALWAYS
)
2927 si_alpha_test(bld_base
, color
[3]);
2929 /* Line & polygon smoothing */
2930 if (ctx
->shader
->key
.ps
.epilog
.poly_line_smoothing
)
2931 color
[3] = si_scale_alpha_by_sample_mask(bld_base
, color
[3],
2934 /* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
2935 if (ctx
->shader
->key
.ps
.epilog
.last_cbuf
> 0) {
2936 LLVMValueRef args
[8][9];
2939 /* Get the export arguments, also find out what the last one is. */
2940 for (c
= 0; c
<= ctx
->shader
->key
.ps
.epilog
.last_cbuf
; c
++) {
2941 si_llvm_init_export_args(bld_base
, color
,
2942 V_008DFC_SQ_EXP_MRT
+ c
, args
[c
]);
2943 if (args
[c
][0] != bld_base
->uint_bld
.zero
)
2947 /* Emit all exports. */
2948 for (c
= 0; c
<= ctx
->shader
->key
.ps
.epilog
.last_cbuf
; c
++) {
2949 if (is_last
&& last
== c
) {
2950 args
[c
][1] = bld_base
->uint_bld
.one
; /* whether the EXEC mask is valid */
2951 args
[c
][2] = bld_base
->uint_bld
.one
; /* DONE bit */
2952 } else if (args
[c
][0] == bld_base
->uint_bld
.zero
)
2953 continue; /* unnecessary NULL export */
2955 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
2956 ctx
->voidt
, args
[c
], 9, 0);
2959 LLVMValueRef args
[9];
2962 si_llvm_init_export_args(bld_base
, color
, V_008DFC_SQ_EXP_MRT
+ index
,
2965 args
[1] = bld_base
->uint_bld
.one
; /* whether the EXEC mask is valid */
2966 args
[2] = bld_base
->uint_bld
.one
; /* DONE bit */
2967 } else if (args
[0] == bld_base
->uint_bld
.zero
)
2968 return; /* unnecessary NULL export */
2970 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
2971 ctx
->voidt
, args
, 9, 0);
2975 static void si_export_null(struct lp_build_tgsi_context
*bld_base
)
2977 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2978 struct lp_build_context
*base
= &bld_base
->base
;
2979 struct lp_build_context
*uint
= &bld_base
->uint_bld
;
2980 LLVMValueRef args
[9];
2982 args
[0] = lp_build_const_int32(base
->gallivm
, 0x0); /* enabled channels */
2983 args
[1] = uint
->one
; /* whether the EXEC mask is valid */
2984 args
[2] = uint
->one
; /* DONE bit */
2985 args
[3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_NULL
);
2986 args
[4] = uint
->zero
; /* COMPR flag (0 = 32-bit export) */
2987 args
[5] = uint
->undef
; /* R */
2988 args
[6] = uint
->undef
; /* G */
2989 args
[7] = uint
->undef
; /* B */
2990 args
[8] = uint
->undef
; /* A */
2992 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
2993 ctx
->voidt
, args
, 9, 0);
2996 static void si_llvm_emit_fs_epilogue(struct lp_build_tgsi_context
*bld_base
)
2998 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
2999 struct si_shader
*shader
= ctx
->shader
;
3000 struct lp_build_context
*base
= &bld_base
->base
;
3001 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
3002 LLVMBuilderRef builder
= base
->gallivm
->builder
;
3003 LLVMValueRef depth
= NULL
, stencil
= NULL
, samplemask
= NULL
;
3004 int last_color_export
= -1;
3007 /* Determine the last export. If MRTZ is present, it's always last.
3008 * Otherwise, find the last color export.
3010 if (!info
->writes_z
&& !info
->writes_stencil
&& !info
->writes_samplemask
) {
3011 unsigned spi_format
= shader
->key
.ps
.epilog
.spi_shader_col_format
;
3013 /* Don't export NULL and return if alpha-test is enabled. */
3014 if (shader
->key
.ps
.epilog
.alpha_func
!= PIPE_FUNC_ALWAYS
&&
3015 shader
->key
.ps
.epilog
.alpha_func
!= PIPE_FUNC_NEVER
&&
3016 (spi_format
& 0xf) == 0)
3017 spi_format
|= V_028714_SPI_SHADER_32_AR
;
3019 for (i
= 0; i
< info
->num_outputs
; i
++) {
3020 unsigned index
= info
->output_semantic_index
[i
];
3022 if (info
->output_semantic_name
[i
] != TGSI_SEMANTIC_COLOR
)
3025 /* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
3026 if (shader
->key
.ps
.epilog
.last_cbuf
> 0) {
3027 /* Just set this if any of the colorbuffers are enabled. */
3029 ((1llu << (4 * (shader
->key
.ps
.epilog
.last_cbuf
+ 1))) - 1))
3030 last_color_export
= i
;
3034 if ((spi_format
>> (index
* 4)) & 0xf)
3035 last_color_export
= i
;
3038 /* If there are no outputs, export NULL. */
3039 if (last_color_export
== -1) {
3040 si_export_null(bld_base
);
3045 for (i
= 0; i
< info
->num_outputs
; i
++) {
3046 unsigned semantic_name
= info
->output_semantic_name
[i
];
3047 unsigned semantic_index
= info
->output_semantic_index
[i
];
3049 LLVMValueRef color
[4] = {};
3051 /* Select the correct target */
3052 switch (semantic_name
) {
3053 case TGSI_SEMANTIC_POSITION
:
3054 depth
= LLVMBuildLoad(builder
,
3055 ctx
->radeon_bld
.soa
.outputs
[i
][2], "");
3057 case TGSI_SEMANTIC_STENCIL
:
3058 stencil
= LLVMBuildLoad(builder
,
3059 ctx
->radeon_bld
.soa
.outputs
[i
][1], "");
3061 case TGSI_SEMANTIC_SAMPLEMASK
:
3062 samplemask
= LLVMBuildLoad(builder
,
3063 ctx
->radeon_bld
.soa
.outputs
[i
][0], "");
3065 case TGSI_SEMANTIC_COLOR
:
3066 for (j
= 0; j
< 4; j
++)
3067 color
[j
] = LLVMBuildLoad(builder
,
3068 ctx
->radeon_bld
.soa
.outputs
[i
][j
], "");
3070 si_export_mrt_color(bld_base
, color
, semantic_index
,
3071 SI_PARAM_SAMPLE_COVERAGE
,
3072 last_color_export
== i
);
3076 "Warning: SI unhandled fs output type:%d\n",
3081 if (depth
|| stencil
|| samplemask
)
3082 si_export_mrt_z(bld_base
, depth
, stencil
, samplemask
);
3086 * Return PS outputs in this order:
3088 * v[0:3] = color0.xyzw
3089 * v[4:7] = color1.xyzw
3094 * vN+3 = SampleMaskIn (used for OpenGL smoothing)
3096 * The alpha-ref SGPR is returned via its original location.
3098 static void si_llvm_return_fs_outputs(struct lp_build_tgsi_context
*bld_base
)
3100 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3101 struct si_shader
*shader
= ctx
->shader
;
3102 struct lp_build_context
*base
= &bld_base
->base
;
3103 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
3104 LLVMBuilderRef builder
= base
->gallivm
->builder
;
3105 unsigned i
, j
, first_vgpr
, vgpr
;
3107 LLVMValueRef color
[8][4] = {};
3108 LLVMValueRef depth
= NULL
, stencil
= NULL
, samplemask
= NULL
;
3111 /* Read the output values. */
3112 for (i
= 0; i
< info
->num_outputs
; i
++) {
3113 unsigned semantic_name
= info
->output_semantic_name
[i
];
3114 unsigned semantic_index
= info
->output_semantic_index
[i
];
3116 switch (semantic_name
) {
3117 case TGSI_SEMANTIC_COLOR
:
3118 assert(semantic_index
< 8);
3119 for (j
= 0; j
< 4; j
++) {
3120 LLVMValueRef ptr
= ctx
->radeon_bld
.soa
.outputs
[i
][j
];
3121 LLVMValueRef result
= LLVMBuildLoad(builder
, ptr
, "");
3122 color
[semantic_index
][j
] = result
;
3125 case TGSI_SEMANTIC_POSITION
:
3126 depth
= LLVMBuildLoad(builder
,
3127 ctx
->radeon_bld
.soa
.outputs
[i
][2], "");
3129 case TGSI_SEMANTIC_STENCIL
:
3130 stencil
= LLVMBuildLoad(builder
,
3131 ctx
->radeon_bld
.soa
.outputs
[i
][1], "");
3133 case TGSI_SEMANTIC_SAMPLEMASK
:
3134 samplemask
= LLVMBuildLoad(builder
,
3135 ctx
->radeon_bld
.soa
.outputs
[i
][0], "");
3138 fprintf(stderr
, "Warning: SI unhandled fs output type:%d\n",
3143 /* Fill the return structure. */
3144 ret
= ctx
->return_value
;
3147 ret
= LLVMBuildInsertValue(builder
, ret
,
3148 bitcast(bld_base
, TGSI_TYPE_SIGNED
,
3149 LLVMGetParam(ctx
->radeon_bld
.main_fn
,
3150 SI_PARAM_ALPHA_REF
)),
3151 SI_SGPR_ALPHA_REF
, "");
3154 first_vgpr
= vgpr
= SI_SGPR_ALPHA_REF
+ 1;
3155 for (i
= 0; i
< ARRAY_SIZE(color
); i
++) {
3159 for (j
= 0; j
< 4; j
++)
3160 ret
= LLVMBuildInsertValue(builder
, ret
, color
[i
][j
], vgpr
++, "");
3163 ret
= LLVMBuildInsertValue(builder
, ret
, depth
, vgpr
++, "");
3165 ret
= LLVMBuildInsertValue(builder
, ret
, stencil
, vgpr
++, "");
3167 ret
= LLVMBuildInsertValue(builder
, ret
, samplemask
, vgpr
++, "");
3169 /* Add the input sample mask for smoothing at the end. */
3170 if (vgpr
< first_vgpr
+ PS_EPILOG_SAMPLEMASK_MIN_LOC
)
3171 vgpr
= first_vgpr
+ PS_EPILOG_SAMPLEMASK_MIN_LOC
;
3172 ret
= LLVMBuildInsertValue(builder
, ret
,
3173 LLVMGetParam(ctx
->radeon_bld
.main_fn
,
3174 SI_PARAM_SAMPLE_COVERAGE
), vgpr
++, "");
3176 ctx
->return_value
= ret
;
3180 * Given a v8i32 resource descriptor for a buffer, extract the size of the
3181 * buffer in number of elements and return it as an i32.
3183 static LLVMValueRef
get_buffer_size(
3184 struct lp_build_tgsi_context
*bld_base
,
3185 LLVMValueRef descriptor
)
3187 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3188 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3189 LLVMBuilderRef builder
= gallivm
->builder
;
3191 LLVMBuildExtractElement(builder
, descriptor
,
3192 lp_build_const_int32(gallivm
, 6), "");
3194 if (ctx
->screen
->b
.chip_class
>= VI
) {
3195 /* On VI, the descriptor contains the size in bytes,
3196 * but TXQ must return the size in elements.
3197 * The stride is always non-zero for resources using TXQ.
3199 LLVMValueRef stride
=
3200 LLVMBuildExtractElement(builder
, descriptor
,
3201 lp_build_const_int32(gallivm
, 5), "");
3202 stride
= LLVMBuildLShr(builder
, stride
,
3203 lp_build_const_int32(gallivm
, 16), "");
3204 stride
= LLVMBuildAnd(builder
, stride
,
3205 lp_build_const_int32(gallivm
, 0x3FFF), "");
3207 size
= LLVMBuildUDiv(builder
, size
, stride
, "");
3214 * Given the i32 or vNi32 \p type, generate the textual name (e.g. for use with
3217 static void build_int_type_name(
3219 char *buf
, unsigned bufsize
)
3221 assert(bufsize
>= 6);
3223 if (LLVMGetTypeKind(type
) == LLVMVectorTypeKind
)
3224 snprintf(buf
, bufsize
, "v%ui32",
3225 LLVMGetVectorSize(type
));
3230 static void build_tex_intrinsic(const struct lp_build_tgsi_action
*action
,
3231 struct lp_build_tgsi_context
*bld_base
,
3232 struct lp_build_emit_data
*emit_data
);
3234 /* Prevent optimizations (at least of memory accesses) across the current
3235 * point in the program by emitting empty inline assembly that is marked as
3236 * having side effects.
3238 static void emit_optimization_barrier(struct si_shader_context
*ctx
)
3240 LLVMBuilderRef builder
= ctx
->radeon_bld
.gallivm
.builder
;
3241 LLVMTypeRef ftype
= LLVMFunctionType(ctx
->voidt
, NULL
, 0, false);
3242 LLVMValueRef inlineasm
= LLVMConstInlineAsm(ftype
, "", "", true, false);
3243 LLVMBuildCall(builder
, inlineasm
, NULL
, 0, "");
3246 static void emit_waitcnt(struct si_shader_context
*ctx
)
3248 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3249 LLVMBuilderRef builder
= gallivm
->builder
;
3250 LLVMValueRef args
[1] = {
3251 lp_build_const_int32(gallivm
, 0xf70)
3253 lp_build_intrinsic(builder
, "llvm.amdgcn.s.waitcnt",
3254 ctx
->voidt
, args
, 1, LLVMNoUnwindAttribute
);
3257 static void membar_emit(
3258 const struct lp_build_tgsi_action
*action
,
3259 struct lp_build_tgsi_context
*bld_base
,
3260 struct lp_build_emit_data
*emit_data
)
3262 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3268 shader_buffer_fetch_rsrc(struct si_shader_context
*ctx
,
3269 const struct tgsi_full_src_register
*reg
)
3271 LLVMValueRef ind_index
;
3272 LLVMValueRef rsrc_ptr
;
3274 if (!reg
->Register
.Indirect
)
3275 return ctx
->shader_buffers
[reg
->Register
.Index
];
3277 ind_index
= get_bounded_indirect_index(ctx
, ®
->Indirect
,
3278 reg
->Register
.Index
,
3279 SI_NUM_SHADER_BUFFERS
);
3281 rsrc_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_SHADER_BUFFERS
);
3282 return build_indexed_load_const(ctx
, rsrc_ptr
, ind_index
);
3285 static bool tgsi_is_array_sampler(unsigned target
)
3287 return target
== TGSI_TEXTURE_1D_ARRAY
||
3288 target
== TGSI_TEXTURE_SHADOW1D_ARRAY
||
3289 target
== TGSI_TEXTURE_2D_ARRAY
||
3290 target
== TGSI_TEXTURE_SHADOW2D_ARRAY
||
3291 target
== TGSI_TEXTURE_CUBE_ARRAY
||
3292 target
== TGSI_TEXTURE_SHADOWCUBE_ARRAY
||
3293 target
== TGSI_TEXTURE_2D_ARRAY_MSAA
;
3296 static bool tgsi_is_array_image(unsigned target
)
3298 return target
== TGSI_TEXTURE_3D
||
3299 target
== TGSI_TEXTURE_CUBE
||
3300 target
== TGSI_TEXTURE_1D_ARRAY
||
3301 target
== TGSI_TEXTURE_2D_ARRAY
||
3302 target
== TGSI_TEXTURE_CUBE_ARRAY
||
3303 target
== TGSI_TEXTURE_2D_ARRAY_MSAA
;
3307 * Given a 256-bit resource descriptor, force the DCC enable bit to off.
3309 * At least on Tonga, executing image stores on images with DCC enabled and
3310 * non-trivial can eventually lead to lockups. This can occur when an
3311 * application binds an image as read-only but then uses a shader that writes
3312 * to it. The OpenGL spec allows almost arbitrarily bad behavior (including
3313 * program termination) in this case, but it doesn't cost much to be a bit
3314 * nicer: disabling DCC in the shader still leads to undefined results but
3315 * avoids the lockup.
3317 static LLVMValueRef
force_dcc_off(struct si_shader_context
*ctx
,
3320 if (ctx
->screen
->b
.chip_class
<= CIK
) {
3323 LLVMBuilderRef builder
= ctx
->radeon_bld
.gallivm
.builder
;
3324 LLVMValueRef i32_6
= LLVMConstInt(ctx
->i32
, 6, 0);
3325 LLVMValueRef i32_C
= LLVMConstInt(ctx
->i32
, C_008F28_COMPRESSION_EN
, 0);
3328 tmp
= LLVMBuildExtractElement(builder
, rsrc
, i32_6
, "");
3329 tmp
= LLVMBuildAnd(builder
, tmp
, i32_C
, "");
3330 return LLVMBuildInsertElement(builder
, rsrc
, tmp
, i32_6
, "");
3335 * Load the resource descriptor for \p image.
3339 struct lp_build_tgsi_context
*bld_base
,
3340 const struct tgsi_full_src_register
*image
,
3344 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3346 assert(image
->Register
.File
== TGSI_FILE_IMAGE
);
3348 if (!image
->Register
.Indirect
) {
3349 /* Fast path: use preloaded resources */
3350 *rsrc
= ctx
->images
[image
->Register
.Index
];
3352 /* Indexing and manual load */
3353 LLVMValueRef ind_index
;
3354 LLVMValueRef rsrc_ptr
;
3357 /* From the GL_ARB_shader_image_load_store extension spec:
3359 * If a shader performs an image load, store, or atomic
3360 * operation using an image variable declared as an array,
3361 * and if the index used to select an individual element is
3362 * negative or greater than or equal to the size of the
3363 * array, the results of the operation are undefined but may
3364 * not lead to termination.
3366 ind_index
= get_bounded_indirect_index(ctx
, &image
->Indirect
,
3367 image
->Register
.Index
,
3370 rsrc_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_IMAGES
);
3371 tmp
= build_indexed_load_const(ctx
, rsrc_ptr
, ind_index
);
3373 tmp
= force_dcc_off(ctx
, tmp
);
3378 static LLVMValueRef
image_fetch_coords(
3379 struct lp_build_tgsi_context
*bld_base
,
3380 const struct tgsi_full_instruction
*inst
,
3383 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3384 LLVMBuilderRef builder
= gallivm
->builder
;
3385 unsigned target
= inst
->Memory
.Texture
;
3386 unsigned num_coords
= tgsi_util_get_texture_coord_dim(target
);
3387 LLVMValueRef coords
[4];
3391 for (chan
= 0; chan
< num_coords
; ++chan
) {
3392 tmp
= lp_build_emit_fetch(bld_base
, inst
, src
, chan
);
3393 tmp
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3397 if (num_coords
== 1)
3400 if (num_coords
== 3) {
3401 /* LLVM has difficulties lowering 3-element vectors. */
3402 coords
[3] = bld_base
->uint_bld
.undef
;
3406 return lp_build_gather_values(gallivm
, coords
, num_coords
);
3410 * Append the extra mode bits that are used by image load and store.
3412 static void image_append_args(
3413 struct si_shader_context
*ctx
,
3414 struct lp_build_emit_data
* emit_data
,
3418 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3419 LLVMValueRef i1false
= LLVMConstInt(ctx
->i1
, 0, 0);
3420 LLVMValueRef i1true
= LLVMConstInt(ctx
->i1
, 1, 0);
3422 emit_data
->args
[emit_data
->arg_count
++] = i1false
; /* r128 */
3423 emit_data
->args
[emit_data
->arg_count
++] =
3424 tgsi_is_array_image(target
) ? i1true
: i1false
; /* da */
3426 emit_data
->args
[emit_data
->arg_count
++] =
3427 inst
->Memory
.Qualifier
& (TGSI_MEMORY_COHERENT
| TGSI_MEMORY_VOLATILE
) ?
3428 i1true
: i1false
; /* glc */
3430 emit_data
->args
[emit_data
->arg_count
++] = i1false
; /* slc */
3434 * Given a 256 bit resource, extract the top half (which stores the buffer
3435 * resource in the case of textures and images).
3437 static LLVMValueRef
extract_rsrc_top_half(
3438 struct si_shader_context
*ctx
,
3441 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3442 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
3443 LLVMTypeRef v2i128
= LLVMVectorType(ctx
->i128
, 2);
3445 rsrc
= LLVMBuildBitCast(gallivm
->builder
, rsrc
, v2i128
, "");
3446 rsrc
= LLVMBuildExtractElement(gallivm
->builder
, rsrc
, bld_base
->uint_bld
.one
, "");
3447 rsrc
= LLVMBuildBitCast(gallivm
->builder
, rsrc
, ctx
->v4i32
, "");
3453 * Append the resource and indexing arguments for buffer intrinsics.
3455 * \param rsrc the v4i32 buffer resource
3456 * \param index index into the buffer (stride-based)
3457 * \param offset byte offset into the buffer
3459 static void buffer_append_args(
3460 struct si_shader_context
*ctx
,
3461 struct lp_build_emit_data
*emit_data
,
3464 LLVMValueRef offset
,
3467 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3468 LLVMValueRef i1false
= LLVMConstInt(ctx
->i1
, 0, 0);
3469 LLVMValueRef i1true
= LLVMConstInt(ctx
->i1
, 1, 0);
3471 emit_data
->args
[emit_data
->arg_count
++] = rsrc
;
3472 emit_data
->args
[emit_data
->arg_count
++] = index
; /* vindex */
3473 emit_data
->args
[emit_data
->arg_count
++] = offset
; /* voffset */
3475 emit_data
->args
[emit_data
->arg_count
++] =
3476 inst
->Memory
.Qualifier
& (TGSI_MEMORY_COHERENT
| TGSI_MEMORY_VOLATILE
) ?
3477 i1true
: i1false
; /* glc */
3479 emit_data
->args
[emit_data
->arg_count
++] = i1false
; /* slc */
3482 static void load_fetch_args(
3483 struct lp_build_tgsi_context
* bld_base
,
3484 struct lp_build_emit_data
* emit_data
)
3486 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3487 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3488 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3489 unsigned target
= inst
->Memory
.Texture
;
3492 emit_data
->dst_type
= LLVMVectorType(bld_base
->base
.elem_type
, 4);
3494 if (inst
->Src
[0].Register
.File
== TGSI_FILE_BUFFER
) {
3495 LLVMBuilderRef builder
= gallivm
->builder
;
3496 LLVMValueRef offset
;
3499 rsrc
= shader_buffer_fetch_rsrc(ctx
, &inst
->Src
[0]);
3501 tmp
= lp_build_emit_fetch(bld_base
, inst
, 1, 0);
3502 offset
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3504 buffer_append_args(ctx
, emit_data
, rsrc
, bld_base
->uint_bld
.zero
,
3506 } else if (inst
->Src
[0].Register
.File
== TGSI_FILE_IMAGE
) {
3507 LLVMValueRef coords
;
3509 image_fetch_rsrc(bld_base
, &inst
->Src
[0], false, &rsrc
);
3510 coords
= image_fetch_coords(bld_base
, inst
, 1);
3512 if (target
== TGSI_TEXTURE_BUFFER
) {
3513 rsrc
= extract_rsrc_top_half(ctx
, rsrc
);
3514 buffer_append_args(ctx
, emit_data
, rsrc
, coords
,
3515 bld_base
->uint_bld
.zero
, false);
3517 emit_data
->args
[0] = coords
;
3518 emit_data
->args
[1] = rsrc
;
3519 emit_data
->args
[2] = lp_build_const_int32(gallivm
, 15); /* dmask */
3520 emit_data
->arg_count
= 3;
3522 image_append_args(ctx
, emit_data
, target
, false);
3527 static void load_emit_buffer(struct si_shader_context
*ctx
,
3528 struct lp_build_emit_data
*emit_data
)
3530 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3531 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3532 LLVMBuilderRef builder
= gallivm
->builder
;
3533 uint writemask
= inst
->Dst
[0].Register
.WriteMask
;
3534 uint count
= util_last_bit(writemask
);
3535 const char *intrinsic_name
;
3536 LLVMTypeRef dst_type
;
3540 intrinsic_name
= "llvm.amdgcn.buffer.load.f32";
3541 dst_type
= ctx
->f32
;
3544 intrinsic_name
= "llvm.amdgcn.buffer.load.v2f32";
3545 dst_type
= LLVMVectorType(ctx
->f32
, 2);
3548 intrinsic_name
= "llvm.amdgcn.buffer.load.v4f32";
3549 dst_type
= ctx
->v4f32
;
3553 emit_data
->output
[emit_data
->chan
] = lp_build_intrinsic(
3554 builder
, intrinsic_name
, dst_type
,
3555 emit_data
->args
, emit_data
->arg_count
,
3556 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
);
3559 static LLVMValueRef
get_memory_ptr(struct si_shader_context
*ctx
,
3560 const struct tgsi_full_instruction
*inst
,
3561 LLVMTypeRef type
, int arg
)
3563 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3564 LLVMBuilderRef builder
= gallivm
->builder
;
3565 LLVMValueRef offset
, ptr
;
3568 offset
= lp_build_emit_fetch(&ctx
->radeon_bld
.soa
.bld_base
, inst
, arg
, 0);
3569 offset
= LLVMBuildBitCast(builder
, offset
, ctx
->i32
, "");
3571 ptr
= ctx
->shared_memory
;
3572 ptr
= LLVMBuildGEP(builder
, ptr
, &offset
, 1, "");
3573 addr_space
= LLVMGetPointerAddressSpace(LLVMTypeOf(ptr
));
3574 ptr
= LLVMBuildBitCast(builder
, ptr
, LLVMPointerType(type
, addr_space
), "");
3579 static void load_emit_memory(
3580 struct si_shader_context
*ctx
,
3581 struct lp_build_emit_data
*emit_data
)
3583 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3584 struct lp_build_context
*base
= &ctx
->radeon_bld
.soa
.bld_base
.base
;
3585 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3586 LLVMBuilderRef builder
= gallivm
->builder
;
3587 unsigned writemask
= inst
->Dst
[0].Register
.WriteMask
;
3588 LLVMValueRef channels
[4], ptr
, derived_ptr
, index
;
3591 ptr
= get_memory_ptr(ctx
, inst
, base
->elem_type
, 1);
3593 for (chan
= 0; chan
< 4; ++chan
) {
3594 if (!(writemask
& (1 << chan
))) {
3595 channels
[chan
] = LLVMGetUndef(base
->elem_type
);
3599 index
= lp_build_const_int32(gallivm
, chan
);
3600 derived_ptr
= LLVMBuildGEP(builder
, ptr
, &index
, 1, "");
3601 channels
[chan
] = LLVMBuildLoad(builder
, derived_ptr
, "");
3603 emit_data
->output
[emit_data
->chan
] = lp_build_gather_values(gallivm
, channels
, 4);
3606 static void load_emit(
3607 const struct lp_build_tgsi_action
*action
,
3608 struct lp_build_tgsi_context
*bld_base
,
3609 struct lp_build_emit_data
*emit_data
)
3611 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3612 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3613 LLVMBuilderRef builder
= gallivm
->builder
;
3614 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3615 char intrinsic_name
[32];
3616 char coords_type
[8];
3618 if (inst
->Src
[0].Register
.File
== TGSI_FILE_MEMORY
) {
3619 load_emit_memory(ctx
, emit_data
);
3623 if (inst
->Memory
.Qualifier
& TGSI_MEMORY_VOLATILE
)
3626 if (inst
->Src
[0].Register
.File
== TGSI_FILE_BUFFER
) {
3627 load_emit_buffer(ctx
, emit_data
);
3631 if (inst
->Memory
.Texture
== TGSI_TEXTURE_BUFFER
) {
3632 emit_data
->output
[emit_data
->chan
] =
3634 builder
, "llvm.amdgcn.buffer.load.format.v4f32", emit_data
->dst_type
,
3635 emit_data
->args
, emit_data
->arg_count
,
3636 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
);
3638 build_int_type_name(LLVMTypeOf(emit_data
->args
[0]),
3639 coords_type
, sizeof(coords_type
));
3641 snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3642 "llvm.amdgcn.image.load.%s", coords_type
);
3644 emit_data
->output
[emit_data
->chan
] =
3646 builder
, intrinsic_name
, emit_data
->dst_type
,
3647 emit_data
->args
, emit_data
->arg_count
,
3648 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
);
3652 static void store_fetch_args(
3653 struct lp_build_tgsi_context
* bld_base
,
3654 struct lp_build_emit_data
* emit_data
)
3656 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3657 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3658 LLVMBuilderRef builder
= gallivm
->builder
;
3659 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3660 struct tgsi_full_src_register memory
;
3661 LLVMValueRef chans
[4];
3666 emit_data
->dst_type
= LLVMVoidTypeInContext(gallivm
->context
);
3668 for (chan
= 0; chan
< 4; ++chan
) {
3669 chans
[chan
] = lp_build_emit_fetch(bld_base
, inst
, 1, chan
);
3671 data
= lp_build_gather_values(gallivm
, chans
, 4);
3673 emit_data
->args
[emit_data
->arg_count
++] = data
;
3675 memory
= tgsi_full_src_register_from_dst(&inst
->Dst
[0]);
3677 if (inst
->Dst
[0].Register
.File
== TGSI_FILE_BUFFER
) {
3678 LLVMValueRef offset
;
3681 rsrc
= shader_buffer_fetch_rsrc(ctx
, &memory
);
3683 tmp
= lp_build_emit_fetch(bld_base
, inst
, 0, 0);
3684 offset
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3686 buffer_append_args(ctx
, emit_data
, rsrc
, bld_base
->uint_bld
.zero
,
3688 } else if (inst
->Dst
[0].Register
.File
== TGSI_FILE_IMAGE
) {
3689 unsigned target
= inst
->Memory
.Texture
;
3690 LLVMValueRef coords
;
3692 coords
= image_fetch_coords(bld_base
, inst
, 0);
3694 if (target
== TGSI_TEXTURE_BUFFER
) {
3695 image_fetch_rsrc(bld_base
, &memory
, false, &rsrc
);
3697 rsrc
= extract_rsrc_top_half(ctx
, rsrc
);
3698 buffer_append_args(ctx
, emit_data
, rsrc
, coords
,
3699 bld_base
->uint_bld
.zero
, false);
3701 emit_data
->args
[1] = coords
;
3702 image_fetch_rsrc(bld_base
, &memory
, true, &emit_data
->args
[2]);
3703 emit_data
->args
[3] = lp_build_const_int32(gallivm
, 15); /* dmask */
3704 emit_data
->arg_count
= 4;
3706 image_append_args(ctx
, emit_data
, target
, false);
3711 static void store_emit_buffer(
3712 struct si_shader_context
*ctx
,
3713 struct lp_build_emit_data
*emit_data
)
3715 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3716 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3717 LLVMBuilderRef builder
= gallivm
->builder
;
3718 struct lp_build_context
*uint_bld
= &ctx
->radeon_bld
.soa
.bld_base
.uint_bld
;
3719 LLVMValueRef base_data
= emit_data
->args
[0];
3720 LLVMValueRef base_offset
= emit_data
->args
[3];
3721 unsigned writemask
= inst
->Dst
[0].Register
.WriteMask
;
3725 const char *intrinsic_name
;
3727 LLVMValueRef offset
;
3730 u_bit_scan_consecutive_range(&writemask
, &start
, &count
);
3732 /* Due to an LLVM limitation, split 3-element writes
3733 * into a 2-element and a 1-element write. */
3735 writemask
|= 1 << (start
+ 2);
3741 intrinsic_name
= "llvm.amdgcn.buffer.store.v4f32";
3742 } else if (count
== 2) {
3743 LLVMTypeRef v2f32
= LLVMVectorType(ctx
->f32
, 2);
3745 tmp
= LLVMBuildExtractElement(
3747 lp_build_const_int32(gallivm
, start
), "");
3748 data
= LLVMBuildInsertElement(
3749 builder
, LLVMGetUndef(v2f32
), tmp
,
3750 uint_bld
->zero
, "");
3752 tmp
= LLVMBuildExtractElement(
3754 lp_build_const_int32(gallivm
, start
+ 1), "");
3755 data
= LLVMBuildInsertElement(
3756 builder
, data
, tmp
, uint_bld
->one
, "");
3758 intrinsic_name
= "llvm.amdgcn.buffer.store.v2f32";
3761 data
= LLVMBuildExtractElement(
3763 lp_build_const_int32(gallivm
, start
), "");
3764 intrinsic_name
= "llvm.amdgcn.buffer.store.f32";
3767 offset
= base_offset
;
3769 offset
= LLVMBuildAdd(
3771 lp_build_const_int32(gallivm
, start
* 4), "");
3774 emit_data
->args
[0] = data
;
3775 emit_data
->args
[3] = offset
;
3778 builder
, intrinsic_name
, emit_data
->dst_type
,
3779 emit_data
->args
, emit_data
->arg_count
,
3780 LLVMNoUnwindAttribute
);
3784 static void store_emit_memory(
3785 struct si_shader_context
*ctx
,
3786 struct lp_build_emit_data
*emit_data
)
3788 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
3789 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3790 struct lp_build_context
*base
= &ctx
->radeon_bld
.soa
.bld_base
.base
;
3791 LLVMBuilderRef builder
= gallivm
->builder
;
3792 unsigned writemask
= inst
->Dst
[0].Register
.WriteMask
;
3793 LLVMValueRef ptr
, derived_ptr
, data
, index
;
3796 ptr
= get_memory_ptr(ctx
, inst
, base
->elem_type
, 0);
3798 for (chan
= 0; chan
< 4; ++chan
) {
3799 if (!(writemask
& (1 << chan
))) {
3802 data
= lp_build_emit_fetch(&ctx
->radeon_bld
.soa
.bld_base
, inst
, 1, chan
);
3803 index
= lp_build_const_int32(gallivm
, chan
);
3804 derived_ptr
= LLVMBuildGEP(builder
, ptr
, &index
, 1, "");
3805 LLVMBuildStore(builder
, data
, derived_ptr
);
3809 static void store_emit(
3810 const struct lp_build_tgsi_action
*action
,
3811 struct lp_build_tgsi_context
*bld_base
,
3812 struct lp_build_emit_data
*emit_data
)
3814 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3815 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3816 LLVMBuilderRef builder
= gallivm
->builder
;
3817 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3818 unsigned target
= inst
->Memory
.Texture
;
3819 char intrinsic_name
[32];
3820 char coords_type
[8];
3822 if (inst
->Dst
[0].Register
.File
== TGSI_FILE_MEMORY
) {
3823 store_emit_memory(ctx
, emit_data
);
3827 if (inst
->Memory
.Qualifier
& TGSI_MEMORY_VOLATILE
)
3830 if (inst
->Dst
[0].Register
.File
== TGSI_FILE_BUFFER
) {
3831 store_emit_buffer(ctx
, emit_data
);
3835 if (target
== TGSI_TEXTURE_BUFFER
) {
3836 emit_data
->output
[emit_data
->chan
] = lp_build_intrinsic(
3837 builder
, "llvm.amdgcn.buffer.store.format.v4f32",
3838 emit_data
->dst_type
, emit_data
->args
, emit_data
->arg_count
,
3839 LLVMNoUnwindAttribute
);
3841 build_int_type_name(LLVMTypeOf(emit_data
->args
[1]),
3842 coords_type
, sizeof(coords_type
));
3843 snprintf(intrinsic_name
, sizeof(intrinsic_name
),
3844 "llvm.amdgcn.image.store.%s", coords_type
);
3846 emit_data
->output
[emit_data
->chan
] =
3848 builder
, intrinsic_name
, emit_data
->dst_type
,
3849 emit_data
->args
, emit_data
->arg_count
,
3850 LLVMNoUnwindAttribute
);
3854 static void atomic_fetch_args(
3855 struct lp_build_tgsi_context
* bld_base
,
3856 struct lp_build_emit_data
* emit_data
)
3858 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3859 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3860 LLVMBuilderRef builder
= gallivm
->builder
;
3861 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3862 LLVMValueRef data1
, data2
;
3866 emit_data
->dst_type
= bld_base
->base
.elem_type
;
3868 tmp
= lp_build_emit_fetch(bld_base
, inst
, 2, 0);
3869 data1
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3871 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_ATOMCAS
) {
3872 tmp
= lp_build_emit_fetch(bld_base
, inst
, 3, 0);
3873 data2
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3876 /* llvm.amdgcn.image/buffer.atomic.cmpswap reflect the hardware order
3877 * of arguments, which is reversed relative to TGSI (and GLSL)
3879 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_ATOMCAS
)
3880 emit_data
->args
[emit_data
->arg_count
++] = data2
;
3881 emit_data
->args
[emit_data
->arg_count
++] = data1
;
3883 if (inst
->Src
[0].Register
.File
== TGSI_FILE_BUFFER
) {
3884 LLVMValueRef offset
;
3886 rsrc
= shader_buffer_fetch_rsrc(ctx
, &inst
->Src
[0]);
3888 tmp
= lp_build_emit_fetch(bld_base
, inst
, 1, 0);
3889 offset
= LLVMBuildBitCast(builder
, tmp
, bld_base
->uint_bld
.elem_type
, "");
3891 buffer_append_args(ctx
, emit_data
, rsrc
, bld_base
->uint_bld
.zero
,
3893 } else if (inst
->Src
[0].Register
.File
== TGSI_FILE_IMAGE
) {
3894 unsigned target
= inst
->Memory
.Texture
;
3895 LLVMValueRef coords
;
3897 image_fetch_rsrc(bld_base
, &inst
->Src
[0],
3898 target
!= TGSI_TEXTURE_BUFFER
, &rsrc
);
3899 coords
= image_fetch_coords(bld_base
, inst
, 1);
3901 if (target
== TGSI_TEXTURE_BUFFER
) {
3902 rsrc
= extract_rsrc_top_half(ctx
, rsrc
);
3903 buffer_append_args(ctx
, emit_data
, rsrc
, coords
,
3904 bld_base
->uint_bld
.zero
, true);
3906 emit_data
->args
[emit_data
->arg_count
++] = coords
;
3907 emit_data
->args
[emit_data
->arg_count
++] = rsrc
;
3909 image_append_args(ctx
, emit_data
, target
, true);
3914 static void atomic_emit_memory(struct si_shader_context
*ctx
,
3915 struct lp_build_emit_data
*emit_data
) {
3916 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
3917 LLVMBuilderRef builder
= gallivm
->builder
;
3918 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3919 LLVMValueRef ptr
, result
, arg
;
3921 ptr
= get_memory_ptr(ctx
, inst
, ctx
->i32
, 1);
3923 arg
= lp_build_emit_fetch(&ctx
->radeon_bld
.soa
.bld_base
, inst
, 2, 0);
3924 arg
= LLVMBuildBitCast(builder
, arg
, ctx
->i32
, "");
3926 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_ATOMCAS
) {
3927 LLVMValueRef new_data
;
3928 new_data
= lp_build_emit_fetch(&ctx
->radeon_bld
.soa
.bld_base
,
3931 new_data
= LLVMBuildBitCast(builder
, new_data
, ctx
->i32
, "");
3933 #if HAVE_LLVM >= 0x309
3934 result
= LLVMBuildAtomicCmpXchg(builder
, ptr
, arg
, new_data
,
3935 LLVMAtomicOrderingSequentiallyConsistent
,
3936 LLVMAtomicOrderingSequentiallyConsistent
,
3940 result
= LLVMBuildExtractValue(builder
, result
, 0, "");
3942 LLVMAtomicRMWBinOp op
;
3944 switch(inst
->Instruction
.Opcode
) {
3945 case TGSI_OPCODE_ATOMUADD
:
3946 op
= LLVMAtomicRMWBinOpAdd
;
3948 case TGSI_OPCODE_ATOMXCHG
:
3949 op
= LLVMAtomicRMWBinOpXchg
;
3951 case TGSI_OPCODE_ATOMAND
:
3952 op
= LLVMAtomicRMWBinOpAnd
;
3954 case TGSI_OPCODE_ATOMOR
:
3955 op
= LLVMAtomicRMWBinOpOr
;
3957 case TGSI_OPCODE_ATOMXOR
:
3958 op
= LLVMAtomicRMWBinOpXor
;
3960 case TGSI_OPCODE_ATOMUMIN
:
3961 op
= LLVMAtomicRMWBinOpUMin
;
3963 case TGSI_OPCODE_ATOMUMAX
:
3964 op
= LLVMAtomicRMWBinOpUMax
;
3966 case TGSI_OPCODE_ATOMIMIN
:
3967 op
= LLVMAtomicRMWBinOpMin
;
3969 case TGSI_OPCODE_ATOMIMAX
:
3970 op
= LLVMAtomicRMWBinOpMax
;
3973 unreachable("unknown atomic opcode");
3976 result
= LLVMBuildAtomicRMW(builder
, op
, ptr
, arg
,
3977 LLVMAtomicOrderingSequentiallyConsistent
,
3980 emit_data
->output
[emit_data
->chan
] = LLVMBuildBitCast(builder
, result
, emit_data
->dst_type
, "");
3983 static void atomic_emit(
3984 const struct lp_build_tgsi_action
*action
,
3985 struct lp_build_tgsi_context
*bld_base
,
3986 struct lp_build_emit_data
*emit_data
)
3988 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
3989 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
3990 LLVMBuilderRef builder
= gallivm
->builder
;
3991 const struct tgsi_full_instruction
* inst
= emit_data
->inst
;
3992 char intrinsic_name
[40];
3995 if (inst
->Src
[0].Register
.File
== TGSI_FILE_MEMORY
) {
3996 atomic_emit_memory(ctx
, emit_data
);
4000 if (inst
->Src
[0].Register
.File
== TGSI_FILE_BUFFER
||
4001 inst
->Memory
.Texture
== TGSI_TEXTURE_BUFFER
) {
4002 snprintf(intrinsic_name
, sizeof(intrinsic_name
),
4003 "llvm.amdgcn.buffer.atomic.%s", action
->intr_name
);
4005 char coords_type
[8];
4007 build_int_type_name(LLVMTypeOf(emit_data
->args
[1]),
4008 coords_type
, sizeof(coords_type
));
4009 snprintf(intrinsic_name
, sizeof(intrinsic_name
),
4010 "llvm.amdgcn.image.atomic.%s.%s",
4011 action
->intr_name
, coords_type
);
4014 tmp
= lp_build_intrinsic(
4015 builder
, intrinsic_name
, bld_base
->uint_bld
.elem_type
,
4016 emit_data
->args
, emit_data
->arg_count
,
4017 LLVMNoUnwindAttribute
);
4018 emit_data
->output
[emit_data
->chan
] =
4019 LLVMBuildBitCast(builder
, tmp
, bld_base
->base
.elem_type
, "");
4022 static void resq_fetch_args(
4023 struct lp_build_tgsi_context
* bld_base
,
4024 struct lp_build_emit_data
* emit_data
)
4026 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4027 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4028 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4029 const struct tgsi_full_src_register
*reg
= &inst
->Src
[0];
4031 emit_data
->dst_type
= LLVMVectorType(bld_base
->base
.elem_type
, 4);
4033 if (reg
->Register
.File
== TGSI_FILE_BUFFER
) {
4034 emit_data
->args
[0] = shader_buffer_fetch_rsrc(ctx
, reg
);
4035 emit_data
->arg_count
= 1;
4036 } else if (inst
->Memory
.Texture
== TGSI_TEXTURE_BUFFER
) {
4037 image_fetch_rsrc(bld_base
, reg
, false, &emit_data
->args
[0]);
4038 emit_data
->arg_count
= 1;
4040 emit_data
->args
[0] = bld_base
->uint_bld
.zero
; /* mip level */
4041 image_fetch_rsrc(bld_base
, reg
, false, &emit_data
->args
[1]);
4042 emit_data
->args
[2] = lp_build_const_int32(gallivm
, 15); /* dmask */
4043 emit_data
->args
[3] = bld_base
->uint_bld
.zero
; /* unorm */
4044 emit_data
->args
[4] = bld_base
->uint_bld
.zero
; /* r128 */
4045 emit_data
->args
[5] = tgsi_is_array_image(inst
->Memory
.Texture
) ?
4046 bld_base
->uint_bld
.one
: bld_base
->uint_bld
.zero
; /* da */
4047 emit_data
->args
[6] = bld_base
->uint_bld
.zero
; /* glc */
4048 emit_data
->args
[7] = bld_base
->uint_bld
.zero
; /* slc */
4049 emit_data
->args
[8] = bld_base
->uint_bld
.zero
; /* tfe */
4050 emit_data
->args
[9] = bld_base
->uint_bld
.zero
; /* lwe */
4051 emit_data
->arg_count
= 10;
4055 static void resq_emit(
4056 const struct lp_build_tgsi_action
*action
,
4057 struct lp_build_tgsi_context
*bld_base
,
4058 struct lp_build_emit_data
*emit_data
)
4060 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4061 LLVMBuilderRef builder
= gallivm
->builder
;
4062 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4065 if (inst
->Src
[0].Register
.File
== TGSI_FILE_BUFFER
) {
4066 out
= LLVMBuildExtractElement(builder
, emit_data
->args
[0],
4067 lp_build_const_int32(gallivm
, 2), "");
4068 } else if (inst
->Memory
.Texture
== TGSI_TEXTURE_BUFFER
) {
4069 out
= get_buffer_size(bld_base
, emit_data
->args
[0]);
4071 out
= lp_build_intrinsic(
4072 builder
, "llvm.SI.getresinfo.i32", emit_data
->dst_type
,
4073 emit_data
->args
, emit_data
->arg_count
,
4074 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
4076 /* Divide the number of layers by 6 to get the number of cubes. */
4077 if (inst
->Memory
.Texture
== TGSI_TEXTURE_CUBE_ARRAY
) {
4078 LLVMValueRef imm2
= lp_build_const_int32(gallivm
, 2);
4079 LLVMValueRef imm6
= lp_build_const_int32(gallivm
, 6);
4081 LLVMValueRef z
= LLVMBuildExtractElement(builder
, out
, imm2
, "");
4082 z
= LLVMBuildBitCast(builder
, z
, bld_base
->uint_bld
.elem_type
, "");
4083 z
= LLVMBuildSDiv(builder
, z
, imm6
, "");
4084 z
= LLVMBuildBitCast(builder
, z
, bld_base
->base
.elem_type
, "");
4085 out
= LLVMBuildInsertElement(builder
, out
, z
, imm2
, "");
4089 emit_data
->output
[emit_data
->chan
] = out
;
4092 static void set_tex_fetch_args(struct si_shader_context
*ctx
,
4093 struct lp_build_emit_data
*emit_data
,
4094 unsigned opcode
, unsigned target
,
4095 LLVMValueRef res_ptr
, LLVMValueRef samp_ptr
,
4096 LLVMValueRef
*param
, unsigned count
,
4099 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
4101 unsigned is_rect
= target
== TGSI_TEXTURE_RECT
;
4103 /* Pad to power of two vector */
4104 while (count
< util_next_power_of_two(count
))
4105 param
[count
++] = LLVMGetUndef(ctx
->i32
);
4107 /* Texture coordinates. */
4109 emit_data
->args
[0] = lp_build_gather_values(gallivm
, param
, count
);
4111 emit_data
->args
[0] = param
[0];
4114 emit_data
->args
[1] = res_ptr
;
4117 if (opcode
== TGSI_OPCODE_TXF
|| opcode
== TGSI_OPCODE_TXQ
)
4118 emit_data
->dst_type
= ctx
->v4i32
;
4120 emit_data
->dst_type
= ctx
->v4f32
;
4122 emit_data
->args
[num_args
++] = samp_ptr
;
4125 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, dmask
);
4126 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, is_rect
); /* unorm */
4127 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, 0); /* r128 */
4128 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
,
4129 tgsi_is_array_sampler(target
)); /* da */
4130 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, 0); /* glc */
4131 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, 0); /* slc */
4132 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, 0); /* tfe */
4133 emit_data
->args
[num_args
++] = lp_build_const_int32(gallivm
, 0); /* lwe */
4135 emit_data
->arg_count
= num_args
;
4138 static const struct lp_build_tgsi_action tex_action
;
4146 static LLVMTypeRef
const_array(LLVMTypeRef elem_type
, int num_elements
)
4148 return LLVMPointerType(LLVMArrayType(elem_type
, num_elements
),
4153 * Load an image view, fmask view. or sampler state descriptor.
4155 static LLVMValueRef
get_sampler_desc_custom(struct si_shader_context
*ctx
,
4156 LLVMValueRef list
, LLVMValueRef index
,
4157 enum desc_type type
)
4159 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
4160 LLVMBuilderRef builder
= gallivm
->builder
;
4164 /* The image is at [0:7]. */
4165 index
= LLVMBuildMul(builder
, index
, LLVMConstInt(ctx
->i32
, 2, 0), "");
4168 /* The FMASK is at [8:15]. */
4169 index
= LLVMBuildMul(builder
, index
, LLVMConstInt(ctx
->i32
, 2, 0), "");
4170 index
= LLVMBuildAdd(builder
, index
, LLVMConstInt(ctx
->i32
, 1, 0), "");
4173 /* The sampler state is at [12:15]. */
4174 index
= LLVMBuildMul(builder
, index
, LLVMConstInt(ctx
->i32
, 4, 0), "");
4175 index
= LLVMBuildAdd(builder
, index
, LLVMConstInt(ctx
->i32
, 3, 0), "");
4176 list
= LLVMBuildPointerCast(builder
, list
,
4177 const_array(ctx
->v4i32
, 0), "");
4181 return build_indexed_load_const(ctx
, list
, index
);
4184 static LLVMValueRef
get_sampler_desc(struct si_shader_context
*ctx
,
4185 LLVMValueRef index
, enum desc_type type
)
4187 LLVMValueRef list
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
4190 return get_sampler_desc_custom(ctx
, list
, index
, type
);
4193 /* Disable anisotropic filtering if BASE_LEVEL == LAST_LEVEL.
4196 * If BASE_LEVEL == LAST_LEVEL, the shader must disable anisotropic
4197 * filtering manually. The driver sets img7 to a mask clearing
4198 * MAX_ANISO_RATIO if BASE_LEVEL == LAST_LEVEL. The shader must do:
4199 * s_and_b32 samp0, samp0, img7
4202 * The ANISO_OVERRIDE sampler field enables this fix in TA.
4204 static LLVMValueRef
sici_fix_sampler_aniso(struct si_shader_context
*ctx
,
4205 LLVMValueRef res
, LLVMValueRef samp
)
4207 LLVMBuilderRef builder
= ctx
->radeon_bld
.gallivm
.builder
;
4208 LLVMValueRef img7
, samp0
;
4210 if (ctx
->screen
->b
.chip_class
>= VI
)
4213 img7
= LLVMBuildExtractElement(builder
, res
,
4214 LLVMConstInt(ctx
->i32
, 7, 0), "");
4215 samp0
= LLVMBuildExtractElement(builder
, samp
,
4216 LLVMConstInt(ctx
->i32
, 0, 0), "");
4217 samp0
= LLVMBuildAnd(builder
, samp0
, img7
, "");
4218 return LLVMBuildInsertElement(builder
, samp
, samp0
,
4219 LLVMConstInt(ctx
->i32
, 0, 0), "");
4222 static void tex_fetch_ptrs(
4223 struct lp_build_tgsi_context
*bld_base
,
4224 struct lp_build_emit_data
*emit_data
,
4225 LLVMValueRef
*res_ptr
, LLVMValueRef
*samp_ptr
, LLVMValueRef
*fmask_ptr
)
4227 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4228 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4229 unsigned target
= inst
->Texture
.Texture
;
4230 unsigned sampler_src
;
4231 unsigned sampler_index
;
4233 sampler_src
= emit_data
->inst
->Instruction
.NumSrcRegs
- 1;
4234 sampler_index
= emit_data
->inst
->Src
[sampler_src
].Register
.Index
;
4236 if (emit_data
->inst
->Src
[sampler_src
].Register
.Indirect
) {
4237 const struct tgsi_full_src_register
*reg
= &emit_data
->inst
->Src
[sampler_src
];
4238 LLVMValueRef ind_index
;
4240 ind_index
= get_bounded_indirect_index(ctx
,
4242 reg
->Register
.Index
,
4245 *res_ptr
= get_sampler_desc(ctx
, ind_index
, DESC_IMAGE
);
4247 if (target
== TGSI_TEXTURE_2D_MSAA
||
4248 target
== TGSI_TEXTURE_2D_ARRAY_MSAA
) {
4252 *fmask_ptr
= get_sampler_desc(ctx
, ind_index
, DESC_FMASK
);
4255 *samp_ptr
= get_sampler_desc(ctx
, ind_index
, DESC_SAMPLER
);
4256 *samp_ptr
= sici_fix_sampler_aniso(ctx
, *res_ptr
, *samp_ptr
);
4262 *res_ptr
= ctx
->sampler_views
[sampler_index
];
4264 *samp_ptr
= ctx
->sampler_states
[sampler_index
];
4266 *fmask_ptr
= ctx
->fmasks
[sampler_index
];
4270 static void txq_fetch_args(
4271 struct lp_build_tgsi_context
*bld_base
,
4272 struct lp_build_emit_data
*emit_data
)
4274 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4275 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4276 LLVMBuilderRef builder
= gallivm
->builder
;
4277 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4278 unsigned target
= inst
->Texture
.Texture
;
4279 LLVMValueRef res_ptr
;
4280 LLVMValueRef address
;
4282 tex_fetch_ptrs(bld_base
, emit_data
, &res_ptr
, NULL
, NULL
);
4284 if (target
== TGSI_TEXTURE_BUFFER
) {
4285 /* Read the size from the buffer descriptor directly. */
4286 LLVMValueRef res
= LLVMBuildBitCast(builder
, res_ptr
, ctx
->v8i32
, "");
4287 emit_data
->args
[0] = get_buffer_size(bld_base
, res
);
4291 /* Textures - set the mip level. */
4292 address
= lp_build_emit_fetch(bld_base
, inst
, 0, TGSI_CHAN_X
);
4294 set_tex_fetch_args(ctx
, emit_data
, TGSI_OPCODE_TXQ
, target
, res_ptr
,
4295 NULL
, &address
, 1, 0xf);
4298 static void txq_emit(const struct lp_build_tgsi_action
*action
,
4299 struct lp_build_tgsi_context
*bld_base
,
4300 struct lp_build_emit_data
*emit_data
)
4302 struct lp_build_context
*base
= &bld_base
->base
;
4303 unsigned target
= emit_data
->inst
->Texture
.Texture
;
4305 if (target
== TGSI_TEXTURE_BUFFER
) {
4306 /* Just return the buffer size. */
4307 emit_data
->output
[emit_data
->chan
] = emit_data
->args
[0];
4311 emit_data
->output
[emit_data
->chan
] = lp_build_intrinsic(
4312 base
->gallivm
->builder
, "llvm.SI.getresinfo.i32",
4313 emit_data
->dst_type
, emit_data
->args
, emit_data
->arg_count
,
4314 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
4316 /* Divide the number of layers by 6 to get the number of cubes. */
4317 if (target
== TGSI_TEXTURE_CUBE_ARRAY
||
4318 target
== TGSI_TEXTURE_SHADOWCUBE_ARRAY
) {
4319 LLVMBuilderRef builder
= bld_base
->base
.gallivm
->builder
;
4320 LLVMValueRef two
= lp_build_const_int32(bld_base
->base
.gallivm
, 2);
4321 LLVMValueRef six
= lp_build_const_int32(bld_base
->base
.gallivm
, 6);
4323 LLVMValueRef v4
= emit_data
->output
[emit_data
->chan
];
4324 LLVMValueRef z
= LLVMBuildExtractElement(builder
, v4
, two
, "");
4325 z
= LLVMBuildSDiv(builder
, z
, six
, "");
4327 emit_data
->output
[emit_data
->chan
] =
4328 LLVMBuildInsertElement(builder
, v4
, z
, two
, "");
4332 static void tex_fetch_args(
4333 struct lp_build_tgsi_context
*bld_base
,
4334 struct lp_build_emit_data
*emit_data
)
4336 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4337 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4338 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4339 unsigned opcode
= inst
->Instruction
.Opcode
;
4340 unsigned target
= inst
->Texture
.Texture
;
4341 LLVMValueRef coords
[5], derivs
[6];
4342 LLVMValueRef address
[16];
4343 unsigned num_coords
= tgsi_util_get_texture_coord_dim(target
);
4344 int ref_pos
= tgsi_util_get_shadow_ref_src_index(target
);
4347 unsigned num_deriv_channels
= 0;
4348 bool has_offset
= inst
->Texture
.NumOffsets
> 0;
4349 LLVMValueRef res_ptr
, samp_ptr
, fmask_ptr
= NULL
;
4350 unsigned dmask
= 0xf;
4352 tex_fetch_ptrs(bld_base
, emit_data
, &res_ptr
, &samp_ptr
, &fmask_ptr
);
4354 if (target
== TGSI_TEXTURE_BUFFER
) {
4355 LLVMTypeRef v2i128
= LLVMVectorType(ctx
->i128
, 2);
4357 /* Bitcast and truncate v8i32 to v16i8. */
4358 LLVMValueRef res
= res_ptr
;
4359 res
= LLVMBuildBitCast(gallivm
->builder
, res
, v2i128
, "");
4360 res
= LLVMBuildExtractElement(gallivm
->builder
, res
, bld_base
->uint_bld
.one
, "");
4361 res
= LLVMBuildBitCast(gallivm
->builder
, res
, ctx
->v16i8
, "");
4363 emit_data
->dst_type
= ctx
->v4f32
;
4364 emit_data
->args
[0] = res
;
4365 emit_data
->args
[1] = bld_base
->uint_bld
.zero
;
4366 emit_data
->args
[2] = lp_build_emit_fetch(bld_base
, emit_data
->inst
, 0, TGSI_CHAN_X
);
4367 emit_data
->arg_count
= 3;
4371 /* Fetch and project texture coordinates */
4372 coords
[3] = lp_build_emit_fetch(bld_base
, emit_data
->inst
, 0, TGSI_CHAN_W
);
4373 for (chan
= 0; chan
< 3; chan
++ ) {
4374 coords
[chan
] = lp_build_emit_fetch(bld_base
,
4377 if (opcode
== TGSI_OPCODE_TXP
)
4378 coords
[chan
] = lp_build_emit_llvm_binary(bld_base
,
4384 if (opcode
== TGSI_OPCODE_TXP
)
4385 coords
[3] = bld_base
->base
.one
;
4388 if (has_offset
&& opcode
!= TGSI_OPCODE_TXF
) {
4389 /* The offsets are six-bit signed integers packed like this:
4390 * X=[5:0], Y=[13:8], and Z=[21:16].
4392 LLVMValueRef offset
[3], pack
;
4394 assert(inst
->Texture
.NumOffsets
== 1);
4396 for (chan
= 0; chan
< 3; chan
++) {
4397 offset
[chan
] = lp_build_emit_fetch_texoffset(bld_base
,
4398 emit_data
->inst
, 0, chan
);
4399 offset
[chan
] = LLVMBuildAnd(gallivm
->builder
, offset
[chan
],
4400 lp_build_const_int32(gallivm
, 0x3f), "");
4402 offset
[chan
] = LLVMBuildShl(gallivm
->builder
, offset
[chan
],
4403 lp_build_const_int32(gallivm
, chan
*8), "");
4406 pack
= LLVMBuildOr(gallivm
->builder
, offset
[0], offset
[1], "");
4407 pack
= LLVMBuildOr(gallivm
->builder
, pack
, offset
[2], "");
4408 address
[count
++] = pack
;
4411 /* Pack LOD bias value */
4412 if (opcode
== TGSI_OPCODE_TXB
)
4413 address
[count
++] = coords
[3];
4414 if (opcode
== TGSI_OPCODE_TXB2
)
4415 address
[count
++] = lp_build_emit_fetch(bld_base
, inst
, 1, TGSI_CHAN_X
);
4417 /* Pack depth comparison value */
4418 if (tgsi_is_shadow_target(target
) && opcode
!= TGSI_OPCODE_LODQ
) {
4419 if (target
== TGSI_TEXTURE_SHADOWCUBE_ARRAY
) {
4420 address
[count
++] = lp_build_emit_fetch(bld_base
, inst
, 1, TGSI_CHAN_X
);
4422 assert(ref_pos
>= 0);
4423 address
[count
++] = coords
[ref_pos
];
4427 /* Pack user derivatives */
4428 if (opcode
== TGSI_OPCODE_TXD
) {
4429 int param
, num_src_deriv_channels
;
4432 case TGSI_TEXTURE_3D
:
4433 num_src_deriv_channels
= 3;
4434 num_deriv_channels
= 3;
4436 case TGSI_TEXTURE_2D
:
4437 case TGSI_TEXTURE_SHADOW2D
:
4438 case TGSI_TEXTURE_RECT
:
4439 case TGSI_TEXTURE_SHADOWRECT
:
4440 case TGSI_TEXTURE_2D_ARRAY
:
4441 case TGSI_TEXTURE_SHADOW2D_ARRAY
:
4442 num_src_deriv_channels
= 2;
4443 num_deriv_channels
= 2;
4445 case TGSI_TEXTURE_CUBE
:
4446 case TGSI_TEXTURE_SHADOWCUBE
:
4447 case TGSI_TEXTURE_CUBE_ARRAY
:
4448 case TGSI_TEXTURE_SHADOWCUBE_ARRAY
:
4449 /* Cube derivatives will be converted to 2D. */
4450 num_src_deriv_channels
= 3;
4451 num_deriv_channels
= 2;
4453 case TGSI_TEXTURE_1D
:
4454 case TGSI_TEXTURE_SHADOW1D
:
4455 case TGSI_TEXTURE_1D_ARRAY
:
4456 case TGSI_TEXTURE_SHADOW1D_ARRAY
:
4457 num_src_deriv_channels
= 1;
4458 num_deriv_channels
= 1;
4461 unreachable("invalid target");
4464 for (param
= 0; param
< 2; param
++)
4465 for (chan
= 0; chan
< num_src_deriv_channels
; chan
++)
4466 derivs
[param
* num_src_deriv_channels
+ chan
] =
4467 lp_build_emit_fetch(bld_base
, inst
, param
+1, chan
);
4470 if (target
== TGSI_TEXTURE_CUBE
||
4471 target
== TGSI_TEXTURE_CUBE_ARRAY
||
4472 target
== TGSI_TEXTURE_SHADOWCUBE
||
4473 target
== TGSI_TEXTURE_SHADOWCUBE_ARRAY
)
4474 radeon_llvm_emit_prepare_cube_coords(bld_base
, emit_data
, coords
, derivs
);
4476 if (opcode
== TGSI_OPCODE_TXD
)
4477 for (int i
= 0; i
< num_deriv_channels
* 2; i
++)
4478 address
[count
++] = derivs
[i
];
4480 /* Pack texture coordinates */
4481 address
[count
++] = coords
[0];
4483 address
[count
++] = coords
[1];
4485 address
[count
++] = coords
[2];
4487 /* Pack LOD or sample index */
4488 if (opcode
== TGSI_OPCODE_TXL
|| opcode
== TGSI_OPCODE_TXF
)
4489 address
[count
++] = coords
[3];
4490 else if (opcode
== TGSI_OPCODE_TXL2
)
4491 address
[count
++] = lp_build_emit_fetch(bld_base
, inst
, 1, TGSI_CHAN_X
);
4494 assert(!"Cannot handle more than 16 texture address parameters");
4498 for (chan
= 0; chan
< count
; chan
++ ) {
4499 address
[chan
] = LLVMBuildBitCast(gallivm
->builder
,
4500 address
[chan
], ctx
->i32
, "");
4503 /* Adjust the sample index according to FMASK.
4505 * For uncompressed MSAA surfaces, FMASK should return 0x76543210,
4506 * which is the identity mapping. Each nibble says which physical sample
4507 * should be fetched to get that sample.
4509 * For example, 0x11111100 means there are only 2 samples stored and
4510 * the second sample covers 3/4 of the pixel. When reading samples 0
4511 * and 1, return physical sample 0 (determined by the first two 0s
4512 * in FMASK), otherwise return physical sample 1.
4514 * The sample index should be adjusted as follows:
4515 * sample_index = (fmask >> (sample_index * 4)) & 0xF;
4517 if (target
== TGSI_TEXTURE_2D_MSAA
||
4518 target
== TGSI_TEXTURE_2D_ARRAY_MSAA
) {
4519 struct lp_build_context
*uint_bld
= &bld_base
->uint_bld
;
4520 struct lp_build_emit_data txf_emit_data
= *emit_data
;
4521 LLVMValueRef txf_address
[4];
4522 unsigned txf_count
= count
;
4523 struct tgsi_full_instruction inst
= {};
4525 memcpy(txf_address
, address
, sizeof(txf_address
));
4527 if (target
== TGSI_TEXTURE_2D_MSAA
) {
4528 txf_address
[2] = bld_base
->uint_bld
.zero
;
4530 txf_address
[3] = bld_base
->uint_bld
.zero
;
4532 /* Read FMASK using TXF. */
4533 inst
.Instruction
.Opcode
= TGSI_OPCODE_TXF
;
4534 inst
.Texture
.Texture
= target
;
4535 txf_emit_data
.inst
= &inst
;
4536 txf_emit_data
.chan
= 0;
4537 set_tex_fetch_args(ctx
, &txf_emit_data
, TGSI_OPCODE_TXF
,
4538 target
, fmask_ptr
, NULL
,
4539 txf_address
, txf_count
, 0xf);
4540 build_tex_intrinsic(&tex_action
, bld_base
, &txf_emit_data
);
4542 /* Initialize some constants. */
4543 LLVMValueRef four
= LLVMConstInt(ctx
->i32
, 4, 0);
4544 LLVMValueRef F
= LLVMConstInt(ctx
->i32
, 0xF, 0);
4546 /* Apply the formula. */
4547 LLVMValueRef fmask
=
4548 LLVMBuildExtractElement(gallivm
->builder
,
4549 txf_emit_data
.output
[0],
4550 uint_bld
->zero
, "");
4552 unsigned sample_chan
= target
== TGSI_TEXTURE_2D_MSAA
? 2 : 3;
4554 LLVMValueRef sample_index4
=
4555 LLVMBuildMul(gallivm
->builder
, address
[sample_chan
], four
, "");
4557 LLVMValueRef shifted_fmask
=
4558 LLVMBuildLShr(gallivm
->builder
, fmask
, sample_index4
, "");
4560 LLVMValueRef final_sample
=
4561 LLVMBuildAnd(gallivm
->builder
, shifted_fmask
, F
, "");
4563 /* Don't rewrite the sample index if WORD1.DATA_FORMAT of the FMASK
4564 * resource descriptor is 0 (invalid),
4566 LLVMValueRef fmask_desc
=
4567 LLVMBuildBitCast(gallivm
->builder
, fmask_ptr
,
4570 LLVMValueRef fmask_word1
=
4571 LLVMBuildExtractElement(gallivm
->builder
, fmask_desc
,
4574 LLVMValueRef word1_is_nonzero
=
4575 LLVMBuildICmp(gallivm
->builder
, LLVMIntNE
,
4576 fmask_word1
, uint_bld
->zero
, "");
4578 /* Replace the MSAA sample index. */
4579 address
[sample_chan
] =
4580 LLVMBuildSelect(gallivm
->builder
, word1_is_nonzero
,
4581 final_sample
, address
[sample_chan
], "");
4584 if (opcode
== TGSI_OPCODE_TXF
) {
4585 /* add tex offsets */
4586 if (inst
->Texture
.NumOffsets
) {
4587 struct lp_build_context
*uint_bld
= &bld_base
->uint_bld
;
4588 struct lp_build_tgsi_soa_context
*bld
= lp_soa_context(bld_base
);
4589 const struct tgsi_texture_offset
*off
= inst
->TexOffsets
;
4591 assert(inst
->Texture
.NumOffsets
== 1);
4594 case TGSI_TEXTURE_3D
:
4595 address
[2] = lp_build_add(uint_bld
, address
[2],
4596 bld
->immediates
[off
->Index
][off
->SwizzleZ
]);
4598 case TGSI_TEXTURE_2D
:
4599 case TGSI_TEXTURE_SHADOW2D
:
4600 case TGSI_TEXTURE_RECT
:
4601 case TGSI_TEXTURE_SHADOWRECT
:
4602 case TGSI_TEXTURE_2D_ARRAY
:
4603 case TGSI_TEXTURE_SHADOW2D_ARRAY
:
4605 lp_build_add(uint_bld
, address
[1],
4606 bld
->immediates
[off
->Index
][off
->SwizzleY
]);
4608 case TGSI_TEXTURE_1D
:
4609 case TGSI_TEXTURE_SHADOW1D
:
4610 case TGSI_TEXTURE_1D_ARRAY
:
4611 case TGSI_TEXTURE_SHADOW1D_ARRAY
:
4613 lp_build_add(uint_bld
, address
[0],
4614 bld
->immediates
[off
->Index
][off
->SwizzleX
]);
4616 /* texture offsets do not apply to other texture targets */
4621 if (opcode
== TGSI_OPCODE_TG4
) {
4622 unsigned gather_comp
= 0;
4624 /* DMASK was repurposed for GATHER4. 4 components are always
4625 * returned and DMASK works like a swizzle - it selects
4626 * the component to fetch. The only valid DMASK values are
4627 * 1=red, 2=green, 4=blue, 8=alpha. (e.g. 1 returns
4628 * (red,red,red,red) etc.) The ISA document doesn't mention
4632 /* Get the component index from src1.x for Gather4. */
4633 if (!tgsi_is_shadow_target(target
)) {
4634 LLVMValueRef (*imms
)[4] = lp_soa_context(bld_base
)->immediates
;
4635 LLVMValueRef comp_imm
;
4636 struct tgsi_src_register src1
= inst
->Src
[1].Register
;
4638 assert(src1
.File
== TGSI_FILE_IMMEDIATE
);
4640 comp_imm
= imms
[src1
.Index
][src1
.SwizzleX
];
4641 gather_comp
= LLVMConstIntGetZExtValue(comp_imm
);
4642 gather_comp
= CLAMP(gather_comp
, 0, 3);
4645 dmask
= 1 << gather_comp
;
4648 set_tex_fetch_args(ctx
, emit_data
, opcode
, target
, res_ptr
,
4649 samp_ptr
, address
, count
, dmask
);
4652 static void build_tex_intrinsic(const struct lp_build_tgsi_action
*action
,
4653 struct lp_build_tgsi_context
*bld_base
,
4654 struct lp_build_emit_data
*emit_data
)
4656 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4657 struct lp_build_context
*base
= &bld_base
->base
;
4658 unsigned opcode
= emit_data
->inst
->Instruction
.Opcode
;
4659 unsigned target
= emit_data
->inst
->Texture
.Texture
;
4660 char intr_name
[127];
4661 bool has_offset
= emit_data
->inst
->Texture
.NumOffsets
> 0;
4662 bool is_shadow
= tgsi_is_shadow_target(target
);
4664 const char *name
= "llvm.SI.image.sample";
4665 const char *infix
= "";
4667 if (target
== TGSI_TEXTURE_BUFFER
) {
4668 emit_data
->output
[emit_data
->chan
] = lp_build_intrinsic(
4669 base
->gallivm
->builder
,
4670 "llvm.SI.vs.load.input", emit_data
->dst_type
,
4671 emit_data
->args
, emit_data
->arg_count
,
4672 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
4677 case TGSI_OPCODE_TXF
:
4678 name
= target
== TGSI_TEXTURE_2D_MSAA
||
4679 target
== TGSI_TEXTURE_2D_ARRAY_MSAA
?
4680 "llvm.SI.image.load" :
4681 "llvm.SI.image.load.mip";
4685 case TGSI_OPCODE_LODQ
:
4686 name
= "llvm.SI.getlod";
4690 case TGSI_OPCODE_TEX
:
4691 case TGSI_OPCODE_TEX2
:
4692 case TGSI_OPCODE_TXP
:
4693 if (ctx
->type
!= PIPE_SHADER_FRAGMENT
)
4696 case TGSI_OPCODE_TXB
:
4697 case TGSI_OPCODE_TXB2
:
4698 assert(ctx
->type
== PIPE_SHADER_FRAGMENT
);
4701 case TGSI_OPCODE_TXL
:
4702 case TGSI_OPCODE_TXL2
:
4705 case TGSI_OPCODE_TXD
:
4708 case TGSI_OPCODE_TG4
:
4709 name
= "llvm.SI.gather4";
4717 /* Add the type and suffixes .c, .o if needed. */
4718 build_int_type_name(LLVMTypeOf(emit_data
->args
[0]), type
, sizeof(type
));
4719 sprintf(intr_name
, "%s%s%s%s.%s",
4720 name
, is_shadow
? ".c" : "", infix
,
4721 has_offset
? ".o" : "", type
);
4723 emit_data
->output
[emit_data
->chan
] = lp_build_intrinsic(
4724 base
->gallivm
->builder
, intr_name
, emit_data
->dst_type
,
4725 emit_data
->args
, emit_data
->arg_count
,
4726 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
4729 static void si_llvm_emit_txqs(
4730 const struct lp_build_tgsi_action
*action
,
4731 struct lp_build_tgsi_context
*bld_base
,
4732 struct lp_build_emit_data
*emit_data
)
4734 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4735 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4736 LLVMBuilderRef builder
= gallivm
->builder
;
4737 LLVMValueRef res
, samples
;
4738 LLVMValueRef res_ptr
, samp_ptr
, fmask_ptr
= NULL
;
4740 tex_fetch_ptrs(bld_base
, emit_data
, &res_ptr
, &samp_ptr
, &fmask_ptr
);
4743 /* Read the samples from the descriptor directly. */
4744 res
= LLVMBuildBitCast(builder
, res_ptr
, ctx
->v8i32
, "");
4745 samples
= LLVMBuildExtractElement(
4747 lp_build_const_int32(gallivm
, 3), "");
4748 samples
= LLVMBuildLShr(builder
, samples
,
4749 lp_build_const_int32(gallivm
, 16), "");
4750 samples
= LLVMBuildAnd(builder
, samples
,
4751 lp_build_const_int32(gallivm
, 0xf), "");
4752 samples
= LLVMBuildShl(builder
, lp_build_const_int32(gallivm
, 1),
4755 emit_data
->output
[emit_data
->chan
] = samples
;
4759 * SI implements derivatives using the local data store (LDS)
4760 * All writes to the LDS happen in all executing threads at
4761 * the same time. TID is the Thread ID for the current
4762 * thread and is a value between 0 and 63, representing
4763 * the thread's position in the wavefront.
4765 * For the pixel shader threads are grouped into quads of four pixels.
4766 * The TIDs of the pixels of a quad are:
4774 * So, masking the TID with 0xfffffffc yields the TID of the top left pixel
4775 * of the quad, masking with 0xfffffffd yields the TID of the top pixel of
4776 * the current pixel's column, and masking with 0xfffffffe yields the TID
4777 * of the left pixel of the current pixel's row.
4779 * Adding 1 yields the TID of the pixel to the right of the left pixel, and
4780 * adding 2 yields the TID of the pixel below the top pixel.
4782 /* masks for thread ID. */
4783 #define TID_MASK_TOP_LEFT 0xfffffffc
4784 #define TID_MASK_TOP 0xfffffffd
4785 #define TID_MASK_LEFT 0xfffffffe
4787 static void si_llvm_emit_ddxy(
4788 const struct lp_build_tgsi_action
*action
,
4789 struct lp_build_tgsi_context
*bld_base
,
4790 struct lp_build_emit_data
*emit_data
)
4792 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4793 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4794 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4795 unsigned opcode
= inst
->Instruction
.Opcode
;
4796 LLVMValueRef indices
[2];
4797 LLVMValueRef store_ptr
, load_ptr0
, load_ptr1
;
4798 LLVMValueRef tl
, trbl
, result
[4];
4799 LLVMValueRef tl_tid
, trbl_tid
;
4800 unsigned swizzle
[4];
4805 indices
[0] = bld_base
->uint_bld
.zero
;
4806 indices
[1] = get_thread_id(ctx
);
4807 store_ptr
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4810 if (opcode
== TGSI_OPCODE_DDX_FINE
)
4811 mask
= TID_MASK_LEFT
;
4812 else if (opcode
== TGSI_OPCODE_DDY_FINE
)
4813 mask
= TID_MASK_TOP
;
4815 mask
= TID_MASK_TOP_LEFT
;
4817 tl_tid
= LLVMBuildAnd(gallivm
->builder
, indices
[1],
4818 lp_build_const_int32(gallivm
, mask
), "");
4819 indices
[1] = tl_tid
;
4820 load_ptr0
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4823 /* for DDX we want to next X pixel, DDY next Y pixel. */
4824 idx
= (opcode
== TGSI_OPCODE_DDX
|| opcode
== TGSI_OPCODE_DDX_FINE
) ? 1 : 2;
4825 trbl_tid
= LLVMBuildAdd(gallivm
->builder
, indices
[1],
4826 lp_build_const_int32(gallivm
, idx
), "");
4827 indices
[1] = trbl_tid
;
4828 load_ptr1
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4831 for (c
= 0; c
< 4; ++c
) {
4834 LLVMValueRef args
[2];
4836 swizzle
[c
] = tgsi_util_get_full_src_register_swizzle(&inst
->Src
[0], c
);
4837 for (i
= 0; i
< c
; ++i
) {
4838 if (swizzle
[i
] == swizzle
[c
]) {
4839 result
[c
] = result
[i
];
4846 val
= LLVMBuildBitCast(gallivm
->builder
,
4847 lp_build_emit_fetch(bld_base
, inst
, 0, c
),
4850 if ((HAVE_LLVM
>= 0x0309) && ctx
->screen
->b
.family
>= CHIP_TONGA
) {
4852 args
[0] = LLVMBuildMul(gallivm
->builder
, tl_tid
,
4853 lp_build_const_int32(gallivm
, 4), "");
4855 tl
= lp_build_intrinsic(gallivm
->builder
,
4856 "llvm.amdgcn.ds.bpermute", ctx
->i32
,
4857 args
, 2, LLVMReadNoneAttribute
);
4859 args
[0] = LLVMBuildMul(gallivm
->builder
, trbl_tid
,
4860 lp_build_const_int32(gallivm
, 4), "");
4861 trbl
= lp_build_intrinsic(gallivm
->builder
,
4862 "llvm.amdgcn.ds.bpermute", ctx
->i32
,
4863 args
, 2, LLVMReadNoneAttribute
);
4865 LLVMBuildStore(gallivm
->builder
, val
, store_ptr
);
4866 tl
= LLVMBuildLoad(gallivm
->builder
, load_ptr0
, "");
4867 trbl
= LLVMBuildLoad(gallivm
->builder
, load_ptr1
, "");
4869 tl
= LLVMBuildBitCast(gallivm
->builder
, tl
, ctx
->f32
, "");
4870 trbl
= LLVMBuildBitCast(gallivm
->builder
, trbl
, ctx
->f32
, "");
4871 result
[c
] = LLVMBuildFSub(gallivm
->builder
, trbl
, tl
, "");
4874 emit_data
->output
[0] = lp_build_gather_values(gallivm
, result
, 4);
4878 * this takes an I,J coordinate pair,
4879 * and works out the X and Y derivatives.
4880 * it returns DDX(I), DDX(J), DDY(I), DDY(J).
4882 static LLVMValueRef
si_llvm_emit_ddxy_interp(
4883 struct lp_build_tgsi_context
*bld_base
,
4884 LLVMValueRef interp_ij
)
4886 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4887 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4888 LLVMValueRef indices
[2];
4889 LLVMValueRef store_ptr
, load_ptr_x
, load_ptr_y
, load_ptr_ddx
, load_ptr_ddy
, temp
, temp2
;
4890 LLVMValueRef tl
, tr
, bl
, result
[4];
4893 indices
[0] = bld_base
->uint_bld
.zero
;
4894 indices
[1] = get_thread_id(ctx
);
4895 store_ptr
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4898 temp
= LLVMBuildAnd(gallivm
->builder
, indices
[1],
4899 lp_build_const_int32(gallivm
, TID_MASK_LEFT
), "");
4901 temp2
= LLVMBuildAnd(gallivm
->builder
, indices
[1],
4902 lp_build_const_int32(gallivm
, TID_MASK_TOP
), "");
4905 load_ptr_x
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4909 load_ptr_y
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4912 indices
[1] = LLVMBuildAdd(gallivm
->builder
, temp
,
4913 lp_build_const_int32(gallivm
, 1), "");
4914 load_ptr_ddx
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4917 indices
[1] = LLVMBuildAdd(gallivm
->builder
, temp2
,
4918 lp_build_const_int32(gallivm
, 2), "");
4919 load_ptr_ddy
= LLVMBuildGEP(gallivm
->builder
, ctx
->lds
,
4922 for (c
= 0; c
< 2; ++c
) {
4923 LLVMValueRef store_val
;
4924 LLVMValueRef c_ll
= lp_build_const_int32(gallivm
, c
);
4926 store_val
= LLVMBuildExtractElement(gallivm
->builder
,
4927 interp_ij
, c_ll
, "");
4928 LLVMBuildStore(gallivm
->builder
,
4932 tl
= LLVMBuildLoad(gallivm
->builder
, load_ptr_x
, "");
4933 tl
= LLVMBuildBitCast(gallivm
->builder
, tl
, ctx
->f32
, "");
4935 tr
= LLVMBuildLoad(gallivm
->builder
, load_ptr_ddx
, "");
4936 tr
= LLVMBuildBitCast(gallivm
->builder
, tr
, ctx
->f32
, "");
4938 result
[c
] = LLVMBuildFSub(gallivm
->builder
, tr
, tl
, "");
4940 tl
= LLVMBuildLoad(gallivm
->builder
, load_ptr_y
, "");
4941 tl
= LLVMBuildBitCast(gallivm
->builder
, tl
, ctx
->f32
, "");
4943 bl
= LLVMBuildLoad(gallivm
->builder
, load_ptr_ddy
, "");
4944 bl
= LLVMBuildBitCast(gallivm
->builder
, bl
, ctx
->f32
, "");
4946 result
[c
+ 2] = LLVMBuildFSub(gallivm
->builder
, bl
, tl
, "");
4949 return lp_build_gather_values(gallivm
, result
, 4);
4952 static void interp_fetch_args(
4953 struct lp_build_tgsi_context
*bld_base
,
4954 struct lp_build_emit_data
*emit_data
)
4956 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
4957 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
4958 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
4960 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_OFFSET
) {
4961 /* offset is in second src, first two channels */
4962 emit_data
->args
[0] = lp_build_emit_fetch(bld_base
,
4965 emit_data
->args
[1] = lp_build_emit_fetch(bld_base
,
4968 emit_data
->arg_count
= 2;
4969 } else if (inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_SAMPLE
) {
4970 LLVMValueRef sample_position
;
4971 LLVMValueRef sample_id
;
4972 LLVMValueRef halfval
= lp_build_const_float(gallivm
, 0.5f
);
4974 /* fetch sample ID, then fetch its sample position,
4975 * and place into first two channels.
4977 sample_id
= lp_build_emit_fetch(bld_base
,
4978 emit_data
->inst
, 1, TGSI_CHAN_X
);
4979 sample_id
= LLVMBuildBitCast(gallivm
->builder
, sample_id
,
4981 sample_position
= load_sample_position(&ctx
->radeon_bld
, sample_id
);
4983 emit_data
->args
[0] = LLVMBuildExtractElement(gallivm
->builder
,
4985 lp_build_const_int32(gallivm
, 0), "");
4987 emit_data
->args
[0] = LLVMBuildFSub(gallivm
->builder
, emit_data
->args
[0], halfval
, "");
4988 emit_data
->args
[1] = LLVMBuildExtractElement(gallivm
->builder
,
4990 lp_build_const_int32(gallivm
, 1), "");
4991 emit_data
->args
[1] = LLVMBuildFSub(gallivm
->builder
, emit_data
->args
[1], halfval
, "");
4992 emit_data
->arg_count
= 2;
4996 static void build_interp_intrinsic(const struct lp_build_tgsi_action
*action
,
4997 struct lp_build_tgsi_context
*bld_base
,
4998 struct lp_build_emit_data
*emit_data
)
5000 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
5001 struct si_shader
*shader
= ctx
->shader
;
5002 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5003 LLVMValueRef interp_param
;
5004 const struct tgsi_full_instruction
*inst
= emit_data
->inst
;
5005 const char *intr_name
;
5006 int input_index
= inst
->Src
[0].Register
.Index
;
5009 LLVMValueRef attr_number
;
5010 LLVMValueRef params
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_PRIM_MASK
);
5011 int interp_param_idx
;
5012 unsigned interp
= shader
->selector
->info
.input_interpolate
[input_index
];
5015 assert(inst
->Src
[0].Register
.File
== TGSI_FILE_INPUT
);
5017 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_OFFSET
||
5018 inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_SAMPLE
)
5019 location
= TGSI_INTERPOLATE_LOC_CENTER
;
5021 location
= TGSI_INTERPOLATE_LOC_CENTROID
;
5023 interp_param_idx
= lookup_interp_param_index(interp
, location
);
5024 if (interp_param_idx
== -1)
5026 else if (interp_param_idx
)
5027 interp_param
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, interp_param_idx
);
5029 interp_param
= NULL
;
5031 attr_number
= lp_build_const_int32(gallivm
, input_index
);
5033 if (inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_OFFSET
||
5034 inst
->Instruction
.Opcode
== TGSI_OPCODE_INTERP_SAMPLE
) {
5035 LLVMValueRef ij_out
[2];
5036 LLVMValueRef ddxy_out
= si_llvm_emit_ddxy_interp(bld_base
, interp_param
);
5039 * take the I then J parameters, and the DDX/Y for it, and
5040 * calculate the IJ inputs for the interpolator.
5041 * temp1 = ddx * offset/sample.x + I;
5042 * interp_param.I = ddy * offset/sample.y + temp1;
5043 * temp1 = ddx * offset/sample.x + J;
5044 * interp_param.J = ddy * offset/sample.y + temp1;
5046 for (i
= 0; i
< 2; i
++) {
5047 LLVMValueRef ix_ll
= lp_build_const_int32(gallivm
, i
);
5048 LLVMValueRef iy_ll
= lp_build_const_int32(gallivm
, i
+ 2);
5049 LLVMValueRef ddx_el
= LLVMBuildExtractElement(gallivm
->builder
,
5050 ddxy_out
, ix_ll
, "");
5051 LLVMValueRef ddy_el
= LLVMBuildExtractElement(gallivm
->builder
,
5052 ddxy_out
, iy_ll
, "");
5053 LLVMValueRef interp_el
= LLVMBuildExtractElement(gallivm
->builder
,
5054 interp_param
, ix_ll
, "");
5055 LLVMValueRef temp1
, temp2
;
5057 interp_el
= LLVMBuildBitCast(gallivm
->builder
, interp_el
,
5060 temp1
= LLVMBuildFMul(gallivm
->builder
, ddx_el
, emit_data
->args
[0], "");
5062 temp1
= LLVMBuildFAdd(gallivm
->builder
, temp1
, interp_el
, "");
5064 temp2
= LLVMBuildFMul(gallivm
->builder
, ddy_el
, emit_data
->args
[1], "");
5066 temp2
= LLVMBuildFAdd(gallivm
->builder
, temp2
, temp1
, "");
5068 ij_out
[i
] = LLVMBuildBitCast(gallivm
->builder
,
5069 temp2
, ctx
->i32
, "");
5071 interp_param
= lp_build_gather_values(bld_base
->base
.gallivm
, ij_out
, 2);
5074 intr_name
= interp_param
? "llvm.SI.fs.interp" : "llvm.SI.fs.constant";
5075 for (chan
= 0; chan
< 2; chan
++) {
5076 LLVMValueRef args
[4];
5077 LLVMValueRef llvm_chan
;
5080 schan
= tgsi_util_get_full_src_register_swizzle(&inst
->Src
[0], chan
);
5081 llvm_chan
= lp_build_const_int32(gallivm
, schan
);
5083 args
[0] = llvm_chan
;
5084 args
[1] = attr_number
;
5086 args
[3] = interp_param
;
5088 emit_data
->output
[chan
] =
5089 lp_build_intrinsic(gallivm
->builder
, intr_name
,
5090 ctx
->f32
, args
, args
[3] ? 4 : 3,
5091 LLVMReadNoneAttribute
| LLVMNoUnwindAttribute
);
5095 static unsigned si_llvm_get_stream(struct lp_build_tgsi_context
*bld_base
,
5096 struct lp_build_emit_data
*emit_data
)
5098 LLVMValueRef (*imms
)[4] = lp_soa_context(bld_base
)->immediates
;
5099 struct tgsi_src_register src0
= emit_data
->inst
->Src
[0].Register
;
5102 assert(src0
.File
== TGSI_FILE_IMMEDIATE
);
5104 stream
= LLVMConstIntGetZExtValue(imms
[src0
.Index
][src0
.SwizzleX
]) & 0x3;
5108 /* Emit one vertex from the geometry shader */
5109 static void si_llvm_emit_vertex(
5110 const struct lp_build_tgsi_action
*action
,
5111 struct lp_build_tgsi_context
*bld_base
,
5112 struct lp_build_emit_data
*emit_data
)
5114 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
5115 struct lp_build_context
*uint
= &bld_base
->uint_bld
;
5116 struct si_shader
*shader
= ctx
->shader
;
5117 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
5118 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5119 LLVMValueRef soffset
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
5120 SI_PARAM_GS2VS_OFFSET
);
5121 LLVMValueRef gs_next_vertex
;
5122 LLVMValueRef can_emit
, kill
;
5123 LLVMValueRef args
[2];
5128 stream
= si_llvm_get_stream(bld_base
, emit_data
);
5130 /* Write vertex attribute values to GSVS ring */
5131 gs_next_vertex
= LLVMBuildLoad(gallivm
->builder
,
5132 ctx
->gs_next_vertex
[stream
],
5135 /* If this thread has already emitted the declared maximum number of
5136 * vertices, kill it: excessive vertex emissions are not supposed to
5137 * have any effect, and GS threads have no externally observable
5138 * effects other than emitting vertices.
5140 can_emit
= LLVMBuildICmp(gallivm
->builder
, LLVMIntULE
, gs_next_vertex
,
5141 lp_build_const_int32(gallivm
,
5142 shader
->selector
->gs_max_out_vertices
), "");
5143 kill
= lp_build_select(&bld_base
->base
, can_emit
,
5144 lp_build_const_float(gallivm
, 1.0f
),
5145 lp_build_const_float(gallivm
, -1.0f
));
5147 lp_build_intrinsic(gallivm
->builder
, "llvm.AMDGPU.kill",
5148 ctx
->voidt
, &kill
, 1, 0);
5150 for (i
= 0; i
< info
->num_outputs
; i
++) {
5151 LLVMValueRef
*out_ptr
=
5152 ctx
->radeon_bld
.soa
.outputs
[i
];
5154 for (chan
= 0; chan
< 4; chan
++) {
5155 LLVMValueRef out_val
= LLVMBuildLoad(gallivm
->builder
, out_ptr
[chan
], "");
5156 LLVMValueRef voffset
=
5157 lp_build_const_int32(gallivm
, (i
* 4 + chan
) *
5158 shader
->selector
->gs_max_out_vertices
);
5160 voffset
= lp_build_add(uint
, voffset
, gs_next_vertex
);
5161 voffset
= lp_build_mul_imm(uint
, voffset
, 4);
5163 out_val
= LLVMBuildBitCast(gallivm
->builder
, out_val
, ctx
->i32
, "");
5165 build_tbuffer_store(ctx
,
5166 ctx
->gsvs_ring
[stream
],
5168 voffset
, soffset
, 0,
5169 V_008F0C_BUF_DATA_FORMAT_32
,
5170 V_008F0C_BUF_NUM_FORMAT_UINT
,
5174 gs_next_vertex
= lp_build_add(uint
, gs_next_vertex
,
5175 lp_build_const_int32(gallivm
, 1));
5177 LLVMBuildStore(gallivm
->builder
, gs_next_vertex
, ctx
->gs_next_vertex
[stream
]);
5179 /* Signal vertex emission */
5180 args
[0] = lp_build_const_int32(gallivm
, SENDMSG_GS_OP_EMIT
| SENDMSG_GS
| (stream
<< 8));
5181 args
[1] = LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_GS_WAVE_ID
);
5182 lp_build_intrinsic(gallivm
->builder
, "llvm.SI.sendmsg",
5183 ctx
->voidt
, args
, 2, LLVMNoUnwindAttribute
);
5186 /* Cut one primitive from the geometry shader */
5187 static void si_llvm_emit_primitive(
5188 const struct lp_build_tgsi_action
*action
,
5189 struct lp_build_tgsi_context
*bld_base
,
5190 struct lp_build_emit_data
*emit_data
)
5192 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
5193 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5194 LLVMValueRef args
[2];
5197 /* Signal primitive cut */
5198 stream
= si_llvm_get_stream(bld_base
, emit_data
);
5199 args
[0] = lp_build_const_int32(gallivm
, SENDMSG_GS_OP_CUT
| SENDMSG_GS
| (stream
<< 8));
5200 args
[1] = LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_GS_WAVE_ID
);
5201 lp_build_intrinsic(gallivm
->builder
, "llvm.SI.sendmsg",
5202 ctx
->voidt
, args
, 2, LLVMNoUnwindAttribute
);
5205 static void si_llvm_emit_barrier(const struct lp_build_tgsi_action
*action
,
5206 struct lp_build_tgsi_context
*bld_base
,
5207 struct lp_build_emit_data
*emit_data
)
5209 struct si_shader_context
*ctx
= si_shader_context(bld_base
);
5210 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5212 /* The real barrier instruction isn’t needed, because an entire patch
5213 * always fits into a single wave.
5215 if (ctx
->type
== PIPE_SHADER_TESS_CTRL
) {
5216 emit_optimization_barrier(ctx
);
5220 lp_build_intrinsic(gallivm
->builder
,
5221 HAVE_LLVM
>= 0x0309 ? "llvm.amdgcn.s.barrier"
5222 : "llvm.AMDGPU.barrier.local",
5223 ctx
->voidt
, NULL
, 0, LLVMNoUnwindAttribute
);
5226 static const struct lp_build_tgsi_action tex_action
= {
5227 .fetch_args
= tex_fetch_args
,
5228 .emit
= build_tex_intrinsic
,
5231 static const struct lp_build_tgsi_action interp_action
= {
5232 .fetch_args
= interp_fetch_args
,
5233 .emit
= build_interp_intrinsic
,
5236 static void si_create_function(struct si_shader_context
*ctx
,
5237 LLVMTypeRef
*returns
, unsigned num_returns
,
5238 LLVMTypeRef
*params
, unsigned num_params
,
5239 int last_array_pointer
, int last_sgpr
)
5243 radeon_llvm_create_func(&ctx
->radeon_bld
, returns
, num_returns
,
5244 params
, num_params
);
5245 radeon_llvm_shader_type(ctx
->radeon_bld
.main_fn
, ctx
->type
);
5246 ctx
->return_value
= LLVMGetUndef(ctx
->radeon_bld
.return_type
);
5248 for (i
= 0; i
<= last_sgpr
; ++i
) {
5249 LLVMValueRef P
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, i
);
5251 /* We tell llvm that array inputs are passed by value to allow Sinking pass
5252 * to move load. Inputs are constant so this is fine. */
5253 if (i
<= last_array_pointer
)
5254 LLVMAddAttribute(P
, LLVMByValAttribute
);
5256 LLVMAddAttribute(P
, LLVMInRegAttribute
);
5259 if (ctx
->screen
->b
.debug_flags
& DBG_UNSAFE_MATH
) {
5260 /* These were copied from some LLVM test. */
5261 LLVMAddTargetDependentFunctionAttr(ctx
->radeon_bld
.main_fn
,
5262 "less-precise-fpmad",
5264 LLVMAddTargetDependentFunctionAttr(ctx
->radeon_bld
.main_fn
,
5267 LLVMAddTargetDependentFunctionAttr(ctx
->radeon_bld
.main_fn
,
5270 LLVMAddTargetDependentFunctionAttr(ctx
->radeon_bld
.main_fn
,
5276 static void create_meta_data(struct si_shader_context
*ctx
)
5278 struct gallivm_state
*gallivm
= ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
5279 LLVMValueRef args
[3];
5281 args
[0] = LLVMMDStringInContext(gallivm
->context
, "const", 5);
5283 args
[2] = lp_build_const_int32(gallivm
, 1);
5285 ctx
->const_md
= LLVMMDNodeInContext(gallivm
->context
, args
, 3);
5287 ctx
->uniform_md_kind
= LLVMGetMDKindIDInContext(gallivm
->context
,
5288 "amdgpu.uniform", 14);
5290 ctx
->empty_md
= LLVMMDNodeInContext(gallivm
->context
, NULL
, 0);
5293 static void declare_streamout_params(struct si_shader_context
*ctx
,
5294 struct pipe_stream_output_info
*so
,
5295 LLVMTypeRef
*params
, LLVMTypeRef i32
,
5296 unsigned *num_params
)
5300 /* Streamout SGPRs. */
5301 if (so
->num_outputs
) {
5302 if (ctx
->type
!= PIPE_SHADER_TESS_EVAL
)
5303 params
[ctx
->param_streamout_config
= (*num_params
)++] = i32
;
5305 ctx
->param_streamout_config
= ctx
->param_tess_offchip
;
5307 params
[ctx
->param_streamout_write_index
= (*num_params
)++] = i32
;
5309 /* A streamout buffer offset is loaded if the stride is non-zero. */
5310 for (i
= 0; i
< 4; i
++) {
5314 params
[ctx
->param_streamout_offset
[i
] = (*num_params
)++] = i32
;
5318 static unsigned llvm_get_type_size(LLVMTypeRef type
)
5320 LLVMTypeKind kind
= LLVMGetTypeKind(type
);
5323 case LLVMIntegerTypeKind
:
5324 return LLVMGetIntTypeWidth(type
) / 8;
5325 case LLVMFloatTypeKind
:
5327 case LLVMPointerTypeKind
:
5329 case LLVMVectorTypeKind
:
5330 return LLVMGetVectorSize(type
) *
5331 llvm_get_type_size(LLVMGetElementType(type
));
5338 static void declare_tess_lds(struct si_shader_context
*ctx
)
5340 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
5341 LLVMTypeRef i32
= ctx
->radeon_bld
.soa
.bld_base
.uint_bld
.elem_type
;
5342 unsigned lds_size
= ctx
->screen
->b
.chip_class
>= CIK
? 65536 : 32768;
5344 /* The actual size is computed outside of the shader to reduce
5345 * the number of shader variants. */
5347 LLVMAddGlobalInAddressSpace(gallivm
->module
,
5348 LLVMArrayType(i32
, lds_size
/ 4),
5353 static void create_function(struct si_shader_context
*ctx
)
5355 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
5356 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5357 struct si_shader
*shader
= ctx
->shader
;
5358 LLVMTypeRef params
[SI_NUM_PARAMS
+ SI_NUM_VERTEX_BUFFERS
], v3i32
;
5359 LLVMTypeRef returns
[16+32*4];
5360 unsigned i
, last_array_pointer
, last_sgpr
, num_params
, num_return_sgprs
;
5361 unsigned num_returns
= 0;
5363 v3i32
= LLVMVectorType(ctx
->i32
, 3);
5365 params
[SI_PARAM_RW_BUFFERS
] = const_array(ctx
->v16i8
, SI_NUM_RW_BUFFERS
);
5366 params
[SI_PARAM_CONST_BUFFERS
] = const_array(ctx
->v16i8
, SI_NUM_CONST_BUFFERS
);
5367 params
[SI_PARAM_SAMPLERS
] = const_array(ctx
->v8i32
, SI_NUM_SAMPLERS
);
5368 params
[SI_PARAM_IMAGES
] = const_array(ctx
->v8i32
, SI_NUM_IMAGES
);
5369 params
[SI_PARAM_SHADER_BUFFERS
] = const_array(ctx
->v4i32
, SI_NUM_SHADER_BUFFERS
);
5370 last_array_pointer
= SI_PARAM_SHADER_BUFFERS
;
5372 switch (ctx
->type
) {
5373 case PIPE_SHADER_VERTEX
:
5374 params
[SI_PARAM_VERTEX_BUFFERS
] = const_array(ctx
->v16i8
, SI_NUM_VERTEX_BUFFERS
);
5375 last_array_pointer
= SI_PARAM_VERTEX_BUFFERS
;
5376 params
[SI_PARAM_BASE_VERTEX
] = ctx
->i32
;
5377 params
[SI_PARAM_START_INSTANCE
] = ctx
->i32
;
5378 num_params
= SI_PARAM_START_INSTANCE
+1;
5380 if (shader
->key
.vs
.as_es
) {
5381 params
[ctx
->param_es2gs_offset
= num_params
++] = ctx
->i32
;
5382 } else if (shader
->key
.vs
.as_ls
) {
5383 params
[SI_PARAM_LS_OUT_LAYOUT
] = ctx
->i32
;
5384 num_params
= SI_PARAM_LS_OUT_LAYOUT
+1;
5386 if (ctx
->is_gs_copy_shader
) {
5387 last_array_pointer
= SI_PARAM_RW_BUFFERS
;
5388 num_params
= SI_PARAM_RW_BUFFERS
+1;
5390 params
[SI_PARAM_VS_STATE_BITS
] = ctx
->i32
;
5391 num_params
= SI_PARAM_VS_STATE_BITS
+1;
5394 /* The locations of the other parameters are assigned dynamically. */
5395 declare_streamout_params(ctx
, &shader
->selector
->so
,
5396 params
, ctx
->i32
, &num_params
);
5399 last_sgpr
= num_params
-1;
5402 params
[ctx
->param_vertex_id
= num_params
++] = ctx
->i32
;
5403 params
[ctx
->param_rel_auto_id
= num_params
++] = ctx
->i32
;
5404 params
[ctx
->param_vs_prim_id
= num_params
++] = ctx
->i32
;
5405 params
[ctx
->param_instance_id
= num_params
++] = ctx
->i32
;
5407 if (!ctx
->is_monolithic
&&
5408 !ctx
->is_gs_copy_shader
) {
5409 /* Vertex load indices. */
5410 ctx
->param_vertex_index0
= num_params
;
5412 for (i
= 0; i
< shader
->selector
->info
.num_inputs
; i
++)
5413 params
[num_params
++] = ctx
->i32
;
5415 /* PrimitiveID output. */
5416 if (!shader
->key
.vs
.as_es
&& !shader
->key
.vs
.as_ls
)
5417 for (i
= 0; i
<= VS_EPILOG_PRIMID_LOC
; i
++)
5418 returns
[num_returns
++] = ctx
->f32
;
5422 case PIPE_SHADER_TESS_CTRL
:
5423 params
[SI_PARAM_TCS_OFFCHIP_LAYOUT
] = ctx
->i32
;
5424 params
[SI_PARAM_TCS_OUT_OFFSETS
] = ctx
->i32
;
5425 params
[SI_PARAM_TCS_OUT_LAYOUT
] = ctx
->i32
;
5426 params
[SI_PARAM_TCS_IN_LAYOUT
] = ctx
->i32
;
5427 params
[ctx
->param_oc_lds
= SI_PARAM_TCS_OC_LDS
] = ctx
->i32
;
5428 params
[SI_PARAM_TESS_FACTOR_OFFSET
] = ctx
->i32
;
5429 last_sgpr
= SI_PARAM_TESS_FACTOR_OFFSET
;
5432 params
[SI_PARAM_PATCH_ID
] = ctx
->i32
;
5433 params
[SI_PARAM_REL_IDS
] = ctx
->i32
;
5434 num_params
= SI_PARAM_REL_IDS
+1;
5436 if (!ctx
->is_monolithic
) {
5437 /* SI_PARAM_TCS_OC_LDS and PARAM_TESS_FACTOR_OFFSET are
5438 * placed after the user SGPRs.
5440 for (i
= 0; i
< SI_TCS_NUM_USER_SGPR
+ 2; i
++)
5441 returns
[num_returns
++] = ctx
->i32
; /* SGPRs */
5443 for (i
= 0; i
< 3; i
++)
5444 returns
[num_returns
++] = ctx
->f32
; /* VGPRs */
5448 case PIPE_SHADER_TESS_EVAL
:
5449 params
[SI_PARAM_TCS_OFFCHIP_LAYOUT
] = ctx
->i32
;
5450 num_params
= SI_PARAM_TCS_OFFCHIP_LAYOUT
+1;
5452 if (shader
->key
.tes
.as_es
) {
5453 params
[ctx
->param_oc_lds
= num_params
++] = ctx
->i32
;
5454 params
[ctx
->param_tess_offchip
= num_params
++] = ctx
->i32
;
5455 params
[ctx
->param_es2gs_offset
= num_params
++] = ctx
->i32
;
5457 params
[ctx
->param_tess_offchip
= num_params
++] = ctx
->i32
;
5458 declare_streamout_params(ctx
, &shader
->selector
->so
,
5459 params
, ctx
->i32
, &num_params
);
5460 params
[ctx
->param_oc_lds
= num_params
++] = ctx
->i32
;
5462 last_sgpr
= num_params
- 1;
5465 params
[ctx
->param_tes_u
= num_params
++] = ctx
->f32
;
5466 params
[ctx
->param_tes_v
= num_params
++] = ctx
->f32
;
5467 params
[ctx
->param_tes_rel_patch_id
= num_params
++] = ctx
->i32
;
5468 params
[ctx
->param_tes_patch_id
= num_params
++] = ctx
->i32
;
5470 /* PrimitiveID output. */
5471 if (!ctx
->is_monolithic
&& !shader
->key
.tes
.as_es
)
5472 for (i
= 0; i
<= VS_EPILOG_PRIMID_LOC
; i
++)
5473 returns
[num_returns
++] = ctx
->f32
;
5476 case PIPE_SHADER_GEOMETRY
:
5477 params
[SI_PARAM_GS2VS_OFFSET
] = ctx
->i32
;
5478 params
[SI_PARAM_GS_WAVE_ID
] = ctx
->i32
;
5479 last_sgpr
= SI_PARAM_GS_WAVE_ID
;
5482 params
[SI_PARAM_VTX0_OFFSET
] = ctx
->i32
;
5483 params
[SI_PARAM_VTX1_OFFSET
] = ctx
->i32
;
5484 params
[SI_PARAM_PRIMITIVE_ID
] = ctx
->i32
;
5485 params
[SI_PARAM_VTX2_OFFSET
] = ctx
->i32
;
5486 params
[SI_PARAM_VTX3_OFFSET
] = ctx
->i32
;
5487 params
[SI_PARAM_VTX4_OFFSET
] = ctx
->i32
;
5488 params
[SI_PARAM_VTX5_OFFSET
] = ctx
->i32
;
5489 params
[SI_PARAM_GS_INSTANCE_ID
] = ctx
->i32
;
5490 num_params
= SI_PARAM_GS_INSTANCE_ID
+1;
5493 case PIPE_SHADER_FRAGMENT
:
5494 params
[SI_PARAM_ALPHA_REF
] = ctx
->f32
;
5495 params
[SI_PARAM_PRIM_MASK
] = ctx
->i32
;
5496 last_sgpr
= SI_PARAM_PRIM_MASK
;
5497 params
[SI_PARAM_PERSP_SAMPLE
] = ctx
->v2i32
;
5498 params
[SI_PARAM_PERSP_CENTER
] = ctx
->v2i32
;
5499 params
[SI_PARAM_PERSP_CENTROID
] = ctx
->v2i32
;
5500 params
[SI_PARAM_PERSP_PULL_MODEL
] = v3i32
;
5501 params
[SI_PARAM_LINEAR_SAMPLE
] = ctx
->v2i32
;
5502 params
[SI_PARAM_LINEAR_CENTER
] = ctx
->v2i32
;
5503 params
[SI_PARAM_LINEAR_CENTROID
] = ctx
->v2i32
;
5504 params
[SI_PARAM_LINE_STIPPLE_TEX
] = ctx
->f32
;
5505 params
[SI_PARAM_POS_X_FLOAT
] = ctx
->f32
;
5506 params
[SI_PARAM_POS_Y_FLOAT
] = ctx
->f32
;
5507 params
[SI_PARAM_POS_Z_FLOAT
] = ctx
->f32
;
5508 params
[SI_PARAM_POS_W_FLOAT
] = ctx
->f32
;
5509 params
[SI_PARAM_FRONT_FACE
] = ctx
->i32
;
5510 params
[SI_PARAM_ANCILLARY
] = ctx
->i32
;
5511 params
[SI_PARAM_SAMPLE_COVERAGE
] = ctx
->f32
;
5512 params
[SI_PARAM_POS_FIXED_PT
] = ctx
->i32
;
5513 num_params
= SI_PARAM_POS_FIXED_PT
+1;
5515 if (!ctx
->is_monolithic
) {
5516 /* Color inputs from the prolog. */
5517 if (shader
->selector
->info
.colors_read
) {
5518 unsigned num_color_elements
=
5519 util_bitcount(shader
->selector
->info
.colors_read
);
5521 assert(num_params
+ num_color_elements
<= ARRAY_SIZE(params
));
5522 for (i
= 0; i
< num_color_elements
; i
++)
5523 params
[num_params
++] = ctx
->f32
;
5526 /* Outputs for the epilog. */
5527 num_return_sgprs
= SI_SGPR_ALPHA_REF
+ 1;
5530 util_bitcount(shader
->selector
->info
.colors_written
) * 4 +
5531 shader
->selector
->info
.writes_z
+
5532 shader
->selector
->info
.writes_stencil
+
5533 shader
->selector
->info
.writes_samplemask
+
5534 1 /* SampleMaskIn */;
5536 num_returns
= MAX2(num_returns
,
5538 PS_EPILOG_SAMPLEMASK_MIN_LOC
+ 1);
5540 for (i
= 0; i
< num_return_sgprs
; i
++)
5541 returns
[i
] = ctx
->i32
;
5542 for (; i
< num_returns
; i
++)
5543 returns
[i
] = ctx
->f32
;
5547 case PIPE_SHADER_COMPUTE
:
5548 params
[SI_PARAM_GRID_SIZE
] = v3i32
;
5549 params
[SI_PARAM_BLOCK_ID
] = v3i32
;
5550 last_sgpr
= SI_PARAM_BLOCK_ID
;
5552 params
[SI_PARAM_THREAD_ID
] = v3i32
;
5553 num_params
= SI_PARAM_THREAD_ID
+ 1;
5556 assert(0 && "unimplemented shader");
5560 assert(num_params
<= ARRAY_SIZE(params
));
5562 si_create_function(ctx
, returns
, num_returns
, params
,
5563 num_params
, last_array_pointer
, last_sgpr
);
5565 /* Reserve register locations for VGPR inputs the PS prolog may need. */
5566 if (ctx
->type
== PIPE_SHADER_FRAGMENT
&&
5567 !ctx
->is_monolithic
) {
5568 radeon_llvm_add_attribute(ctx
->radeon_bld
.main_fn
,
5569 "InitialPSInputAddr",
5570 S_0286D0_PERSP_SAMPLE_ENA(1) |
5571 S_0286D0_PERSP_CENTER_ENA(1) |
5572 S_0286D0_PERSP_CENTROID_ENA(1) |
5573 S_0286D0_LINEAR_SAMPLE_ENA(1) |
5574 S_0286D0_LINEAR_CENTER_ENA(1) |
5575 S_0286D0_LINEAR_CENTROID_ENA(1) |
5576 S_0286D0_FRONT_FACE_ENA(1) |
5577 S_0286D0_POS_FIXED_PT_ENA(1));
5578 } else if (ctx
->type
== PIPE_SHADER_COMPUTE
) {
5579 const unsigned *properties
= shader
->selector
->info
.properties
;
5580 unsigned max_work_group_size
=
5581 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH
] *
5582 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT
] *
5583 properties
[TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH
];
5585 assert(max_work_group_size
);
5587 radeon_llvm_add_attribute(ctx
->radeon_bld
.main_fn
,
5588 "amdgpu-max-work-group-size",
5589 max_work_group_size
);
5592 shader
->info
.num_input_sgprs
= 0;
5593 shader
->info
.num_input_vgprs
= 0;
5595 for (i
= 0; i
<= last_sgpr
; ++i
)
5596 shader
->info
.num_input_sgprs
+= llvm_get_type_size(params
[i
]) / 4;
5598 /* Unused fragment shader inputs are eliminated by the compiler,
5599 * so we don't know yet how many there will be.
5601 if (ctx
->type
!= PIPE_SHADER_FRAGMENT
)
5602 for (; i
< num_params
; ++i
)
5603 shader
->info
.num_input_vgprs
+= llvm_get_type_size(params
[i
]) / 4;
5605 if (bld_base
->info
&&
5606 (bld_base
->info
->opcode_count
[TGSI_OPCODE_DDX
] > 0 ||
5607 bld_base
->info
->opcode_count
[TGSI_OPCODE_DDY
] > 0 ||
5608 bld_base
->info
->opcode_count
[TGSI_OPCODE_DDX_FINE
] > 0 ||
5609 bld_base
->info
->opcode_count
[TGSI_OPCODE_DDY_FINE
] > 0 ||
5610 bld_base
->info
->opcode_count
[TGSI_OPCODE_INTERP_OFFSET
] > 0 ||
5611 bld_base
->info
->opcode_count
[TGSI_OPCODE_INTERP_SAMPLE
] > 0))
5613 LLVMAddGlobalInAddressSpace(gallivm
->module
,
5614 LLVMArrayType(ctx
->i32
, 64),
5618 if ((ctx
->type
== PIPE_SHADER_VERTEX
&& shader
->key
.vs
.as_ls
) ||
5619 ctx
->type
== PIPE_SHADER_TESS_CTRL
||
5620 ctx
->type
== PIPE_SHADER_TESS_EVAL
)
5621 declare_tess_lds(ctx
);
5624 static void preload_constants(struct si_shader_context
*ctx
)
5626 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
5627 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5628 const struct tgsi_shader_info
*info
= bld_base
->info
;
5630 LLVMValueRef ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_CONST_BUFFERS
);
5632 for (buf
= 0; buf
< SI_NUM_CONST_BUFFERS
; buf
++) {
5633 unsigned i
, num_const
= info
->const_file_max
[buf
] + 1;
5638 /* Allocate space for the constant values */
5639 ctx
->constants
[buf
] = CALLOC(num_const
* 4, sizeof(LLVMValueRef
));
5641 /* Load the resource descriptor */
5642 ctx
->const_buffers
[buf
] =
5643 build_indexed_load_const(ctx
, ptr
, lp_build_const_int32(gallivm
, buf
));
5645 /* Load the constants, we rely on the code sinking to do the rest */
5646 for (i
= 0; i
< num_const
* 4; ++i
) {
5647 ctx
->constants
[buf
][i
] =
5648 buffer_load_const(gallivm
->builder
,
5649 ctx
->const_buffers
[buf
],
5650 lp_build_const_int32(gallivm
, i
* 4),
5656 static void preload_shader_buffers(struct si_shader_context
*ctx
)
5658 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
5659 LLVMValueRef ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_SHADER_BUFFERS
);
5662 maxbuf
= MIN2(ctx
->shader
->selector
->info
.file_max
[TGSI_FILE_BUFFER
],
5663 SI_NUM_SHADER_BUFFERS
- 1);
5664 for (buf
= 0; buf
<= maxbuf
; ++buf
) {
5665 ctx
->shader_buffers
[buf
] =
5666 build_indexed_load_const(
5667 ctx
, ptr
, lp_build_const_int32(gallivm
, buf
));
5671 static void preload_samplers(struct si_shader_context
*ctx
)
5673 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
5674 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5675 const struct tgsi_shader_info
*info
= bld_base
->info
;
5676 unsigned i
, num_samplers
= info
->file_max
[TGSI_FILE_SAMPLER
] + 1;
5677 LLVMValueRef offset
;
5679 if (num_samplers
== 0)
5682 /* Load the resources and samplers, we rely on the code sinking to do the rest */
5683 for (i
= 0; i
< num_samplers
; ++i
) {
5685 offset
= lp_build_const_int32(gallivm
, i
);
5686 ctx
->sampler_views
[i
] =
5687 get_sampler_desc(ctx
, offset
, DESC_IMAGE
);
5689 /* FMASK resource */
5690 if (info
->is_msaa_sampler
[i
])
5692 get_sampler_desc(ctx
, offset
, DESC_FMASK
);
5694 ctx
->sampler_states
[i
] =
5695 get_sampler_desc(ctx
, offset
, DESC_SAMPLER
);
5696 ctx
->sampler_states
[i
] =
5697 sici_fix_sampler_aniso(ctx
, ctx
->sampler_views
[i
],
5698 ctx
->sampler_states
[i
]);
5703 static void preload_images(struct si_shader_context
*ctx
)
5705 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
5706 struct tgsi_shader_info
*info
= &ctx
->shader
->selector
->info
;
5707 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5708 unsigned num_images
= bld_base
->info
->file_max
[TGSI_FILE_IMAGE
] + 1;
5709 LLVMValueRef res_ptr
;
5712 if (num_images
== 0)
5715 res_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
, SI_PARAM_IMAGES
);
5717 for (i
= 0; i
< num_images
; ++i
) {
5718 /* Rely on LLVM to shrink the load for buffer resources. */
5720 build_indexed_load_const(ctx
, res_ptr
,
5721 lp_build_const_int32(gallivm
, i
));
5723 if (info
->images_writemask
& (1 << i
) &&
5724 !(info
->images_buffers
& (1 << i
)))
5725 rsrc
= force_dcc_off(ctx
, rsrc
);
5727 ctx
->images
[i
] = rsrc
;
5731 static void preload_streamout_buffers(struct si_shader_context
*ctx
)
5733 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
5734 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5737 /* Streamout can only be used if the shader is compiled as VS. */
5738 if (!ctx
->shader
->selector
->so
.num_outputs
||
5739 (ctx
->type
== PIPE_SHADER_VERTEX
&&
5740 (ctx
->shader
->key
.vs
.as_es
||
5741 ctx
->shader
->key
.vs
.as_ls
)) ||
5742 (ctx
->type
== PIPE_SHADER_TESS_EVAL
&&
5743 ctx
->shader
->key
.tes
.as_es
))
5746 LLVMValueRef buf_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
5747 SI_PARAM_RW_BUFFERS
);
5749 /* Load the resources, we rely on the code sinking to do the rest */
5750 for (i
= 0; i
< 4; ++i
) {
5751 if (ctx
->shader
->selector
->so
.stride
[i
]) {
5752 LLVMValueRef offset
= lp_build_const_int32(gallivm
,
5753 SI_VS_STREAMOUT_BUF0
+ i
);
5755 ctx
->so_buffers
[i
] = build_indexed_load_const(ctx
, buf_ptr
, offset
);
5761 * Load ESGS and GSVS ring buffer resource descriptors and save the variables
5764 static void preload_ring_buffers(struct si_shader_context
*ctx
)
5766 struct gallivm_state
*gallivm
=
5767 ctx
->radeon_bld
.soa
.bld_base
.base
.gallivm
;
5769 LLVMValueRef buf_ptr
= LLVMGetParam(ctx
->radeon_bld
.main_fn
,
5770 SI_PARAM_RW_BUFFERS
);
5772 if ((ctx
->type
== PIPE_SHADER_VERTEX
&&
5773 ctx
->shader
->key
.vs
.as_es
) ||
5774 (ctx
->type
== PIPE_SHADER_TESS_EVAL
&&
5775 ctx
->shader
->key
.tes
.as_es
) ||
5776 ctx
->type
== PIPE_SHADER_GEOMETRY
) {
5778 ctx
->type
== PIPE_SHADER_GEOMETRY
? SI_GS_RING_ESGS
5780 LLVMValueRef offset
= lp_build_const_int32(gallivm
, ring
);
5783 build_indexed_load_const(ctx
, buf_ptr
, offset
);
5786 if (ctx
->is_gs_copy_shader
) {
5787 LLVMValueRef offset
= lp_build_const_int32(gallivm
, SI_VS_RING_GSVS
);
5790 build_indexed_load_const(ctx
, buf_ptr
, offset
);
5792 if (ctx
->type
== PIPE_SHADER_GEOMETRY
) {
5794 for (i
= 0; i
< 4; i
++) {
5795 LLVMValueRef offset
= lp_build_const_int32(gallivm
, SI_GS_RING_GSVS0
+ i
);
5798 build_indexed_load_const(ctx
, buf_ptr
, offset
);
5803 static void si_llvm_emit_polygon_stipple(struct si_shader_context
*ctx
,
5804 LLVMValueRef param_rw_buffers
,
5805 unsigned param_pos_fixed_pt
)
5807 struct lp_build_tgsi_context
*bld_base
=
5808 &ctx
->radeon_bld
.soa
.bld_base
;
5809 struct gallivm_state
*gallivm
= bld_base
->base
.gallivm
;
5810 LLVMBuilderRef builder
= gallivm
->builder
;
5811 LLVMValueRef slot
, desc
, offset
, row
, bit
, address
[2];
5813 /* Use the fixed-point gl_FragCoord input.
5814 * Since the stipple pattern is 32x32 and it repeats, just get 5 bits
5815 * per coordinate to get the repeating effect.
5817 address
[0] = unpack_param(ctx
, param_pos_fixed_pt
, 0, 5);
5818 address
[1] = unpack_param(ctx
, param_pos_fixed_pt
, 16, 5);
5820 /* Load the buffer descriptor. */
5821 slot
= lp_build_const_int32(gallivm
, SI_PS_CONST_POLY_STIPPLE
);
5822 desc
= build_indexed_load_const(ctx
, param_rw_buffers
, slot
);
5824 /* The stipple pattern is 32x32, each row has 32 bits. */
5825 offset
= LLVMBuildMul(builder
, address
[1],
5826 LLVMConstInt(ctx
->i32
, 4, 0), "");
5827 row
= buffer_load_const(builder
, desc
, offset
, ctx
->i32
);
5828 bit
= LLVMBuildLShr(builder
, row
, address
[0], "");
5829 bit
= LLVMBuildTrunc(builder
, bit
, ctx
->i1
, "");
5831 /* The intrinsic kills the thread if arg < 0. */
5832 bit
= LLVMBuildSelect(builder
, bit
, LLVMConstReal(ctx
->f32
, 0),
5833 LLVMConstReal(ctx
->f32
, -1), "");
5834 lp_build_intrinsic(builder
, "llvm.AMDGPU.kill", ctx
->voidt
, &bit
, 1, 0);
5837 void si_shader_binary_read_config(struct radeon_shader_binary
*binary
,
5838 struct si_shader_config
*conf
,
5839 unsigned symbol_offset
)
5842 const unsigned char *config
=
5843 radeon_shader_binary_config_start(binary
, symbol_offset
);
5844 bool really_needs_scratch
= false;
5846 /* LLVM adds SGPR spills to the scratch size.
5847 * Find out if we really need the scratch buffer.
5849 for (i
= 0; i
< binary
->reloc_count
; i
++) {
5850 const struct radeon_shader_reloc
*reloc
= &binary
->relocs
[i
];
5852 if (!strcmp(scratch_rsrc_dword0_symbol
, reloc
->name
) ||
5853 !strcmp(scratch_rsrc_dword1_symbol
, reloc
->name
)) {
5854 really_needs_scratch
= true;
5859 /* XXX: We may be able to emit some of these values directly rather than
5860 * extracting fields to be emitted later.
5863 for (i
= 0; i
< binary
->config_size_per_symbol
; i
+= 8) {
5864 unsigned reg
= util_le32_to_cpu(*(uint32_t*)(config
+ i
));
5865 unsigned value
= util_le32_to_cpu(*(uint32_t*)(config
+ i
+ 4));
5867 case R_00B028_SPI_SHADER_PGM_RSRC1_PS
:
5868 case R_00B128_SPI_SHADER_PGM_RSRC1_VS
:
5869 case R_00B228_SPI_SHADER_PGM_RSRC1_GS
:
5870 case R_00B848_COMPUTE_PGM_RSRC1
:
5871 conf
->num_sgprs
= MAX2(conf
->num_sgprs
, (G_00B028_SGPRS(value
) + 1) * 8);
5872 conf
->num_vgprs
= MAX2(conf
->num_vgprs
, (G_00B028_VGPRS(value
) + 1) * 4);
5873 conf
->float_mode
= G_00B028_FLOAT_MODE(value
);
5874 conf
->rsrc1
= value
;
5876 case R_00B02C_SPI_SHADER_PGM_RSRC2_PS
:
5877 conf
->lds_size
= MAX2(conf
->lds_size
, G_00B02C_EXTRA_LDS_SIZE(value
));
5879 case R_00B84C_COMPUTE_PGM_RSRC2
:
5880 conf
->lds_size
= MAX2(conf
->lds_size
, G_00B84C_LDS_SIZE(value
));
5881 conf
->rsrc2
= value
;
5883 case R_0286CC_SPI_PS_INPUT_ENA
:
5884 conf
->spi_ps_input_ena
= value
;
5886 case R_0286D0_SPI_PS_INPUT_ADDR
:
5887 conf
->spi_ps_input_addr
= value
;
5889 case R_0286E8_SPI_TMPRING_SIZE
:
5890 case R_00B860_COMPUTE_TMPRING_SIZE
:
5891 /* WAVESIZE is in units of 256 dwords. */
5892 if (really_needs_scratch
)
5893 conf
->scratch_bytes_per_wave
=
5894 G_00B860_WAVESIZE(value
) * 256 * 4;
5898 static bool printed
;
5901 fprintf(stderr
, "Warning: LLVM emitted unknown "
5902 "config register: 0x%x\n", reg
);
5909 if (!conf
->spi_ps_input_addr
)
5910 conf
->spi_ps_input_addr
= conf
->spi_ps_input_ena
;
5914 void si_shader_apply_scratch_relocs(struct si_context
*sctx
,
5915 struct si_shader
*shader
,
5916 struct si_shader_config
*config
,
5917 uint64_t scratch_va
)
5920 uint32_t scratch_rsrc_dword0
= scratch_va
;
5921 uint32_t scratch_rsrc_dword1
=
5922 S_008F04_BASE_ADDRESS_HI(scratch_va
>> 32);
5924 /* Enable scratch coalescing if LLVM sets ELEMENT_SIZE & INDEX_STRIDE
5927 if (HAVE_LLVM
>= 0x0309)
5928 scratch_rsrc_dword1
|= S_008F04_SWIZZLE_ENABLE(1);
5930 scratch_rsrc_dword1
|=
5931 S_008F04_STRIDE(config
->scratch_bytes_per_wave
/ 64);
5933 for (i
= 0 ; i
< shader
->binary
.reloc_count
; i
++) {
5934 const struct radeon_shader_reloc
*reloc
=
5935 &shader
->binary
.relocs
[i
];
5936 if (!strcmp(scratch_rsrc_dword0_symbol
, reloc
->name
)) {
5937 util_memcpy_cpu_to_le32(shader
->binary
.code
+ reloc
->offset
,
5938 &scratch_rsrc_dword0
, 4);
5939 } else if (!strcmp(scratch_rsrc_dword1_symbol
, reloc
->name
)) {
5940 util_memcpy_cpu_to_le32(shader
->binary
.code
+ reloc
->offset
,
5941 &scratch_rsrc_dword1
, 4);
5946 static unsigned si_get_shader_binary_size(struct si_shader
*shader
)
5948 unsigned size
= shader
->binary
.code_size
;
5951 size
+= shader
->prolog
->binary
.code_size
;
5953 size
+= shader
->epilog
->binary
.code_size
;
5957 int si_shader_binary_upload(struct si_screen
*sscreen
, struct si_shader
*shader
)
5959 const struct radeon_shader_binary
*prolog
=
5960 shader
->prolog
? &shader
->prolog
->binary
: NULL
;
5961 const struct radeon_shader_binary
*epilog
=
5962 shader
->epilog
? &shader
->epilog
->binary
: NULL
;
5963 const struct radeon_shader_binary
*mainb
= &shader
->binary
;
5964 unsigned bo_size
= si_get_shader_binary_size(shader
) +
5965 (!epilog
? mainb
->rodata_size
: 0);
5968 assert(!prolog
|| !prolog
->rodata_size
);
5969 assert((!prolog
&& !epilog
) || !mainb
->rodata_size
);
5970 assert(!epilog
|| !epilog
->rodata_size
);
5972 r600_resource_reference(&shader
->bo
, NULL
);
5973 shader
->bo
= si_resource_create_custom(&sscreen
->b
.b
,
5974 PIPE_USAGE_IMMUTABLE
,
5980 ptr
= sscreen
->b
.ws
->buffer_map(shader
->bo
->buf
, NULL
,
5981 PIPE_TRANSFER_READ_WRITE
);
5984 util_memcpy_cpu_to_le32(ptr
, prolog
->code
, prolog
->code_size
);
5985 ptr
+= prolog
->code_size
;
5988 util_memcpy_cpu_to_le32(ptr
, mainb
->code
, mainb
->code_size
);
5989 ptr
+= mainb
->code_size
;
5992 util_memcpy_cpu_to_le32(ptr
, epilog
->code
, epilog
->code_size
);
5993 else if (mainb
->rodata_size
> 0)
5994 util_memcpy_cpu_to_le32(ptr
, mainb
->rodata
, mainb
->rodata_size
);
5996 sscreen
->b
.ws
->buffer_unmap(shader
->bo
->buf
);
6000 static void si_shader_dump_disassembly(const struct radeon_shader_binary
*binary
,
6001 struct pipe_debug_callback
*debug
,
6002 const char *name
, FILE *file
)
6007 if (binary
->disasm_string
) {
6008 fprintf(file
, "Shader %s disassembly:\n", name
);
6009 fprintf(file
, "%s", binary
->disasm_string
);
6011 if (debug
&& debug
->debug_message
) {
6012 /* Very long debug messages are cut off, so send the
6013 * disassembly one line at a time. This causes more
6014 * overhead, but on the plus side it simplifies
6015 * parsing of resulting logs.
6017 pipe_debug_message(debug
, SHADER_INFO
,
6018 "Shader Disassembly Begin");
6020 line
= binary
->disasm_string
;
6022 p
= util_strchrnul(line
, '\n');
6026 pipe_debug_message(debug
, SHADER_INFO
,
6027 "%.*s", count
, line
);
6035 pipe_debug_message(debug
, SHADER_INFO
,
6036 "Shader Disassembly End");
6039 fprintf(file
, "Shader %s binary:\n", name
);
6040 for (i
= 0; i
< binary
->code_size
; i
+= 4) {
6041 fprintf(file
, "@0x%x: %02x%02x%02x%02x\n", i
,
6042 binary
->code
[i
+ 3], binary
->code
[i
+ 2],
6043 binary
->code
[i
+ 1], binary
->code
[i
]);
6048 static void si_shader_dump_stats(struct si_screen
*sscreen
,
6049 struct si_shader_config
*conf
,
6050 unsigned num_inputs
,
6052 struct pipe_debug_callback
*debug
,
6056 unsigned lds_increment
= sscreen
->b
.chip_class
>= CIK
? 512 : 256;
6057 unsigned lds_per_wave
= 0;
6058 unsigned max_simd_waves
= 10;
6059 /* Assuming SGPRs aren't spilled. */
6060 unsigned spilled_vgprs
= conf
->scratch_bytes_per_wave
/ 64 / 4;
6062 /* Compute LDS usage for PS. */
6063 if (processor
== PIPE_SHADER_FRAGMENT
) {
6064 /* The minimum usage per wave is (num_inputs * 48). The maximum
6065 * usage is (num_inputs * 48 * 16).
6066 * We can get anything in between and it varies between waves.
6068 * The 48 bytes per input for a single primitive is equal to
6069 * 4 bytes/component * 4 components/input * 3 points.
6071 * Other stages don't know the size at compile time or don't
6072 * allocate LDS per wave, but instead they do it per thread group.
6074 lds_per_wave
= conf
->lds_size
* lds_increment
+
6075 align(num_inputs
* 48, lds_increment
);
6078 /* Compute the per-SIMD wave counts. */
6079 if (conf
->num_sgprs
) {
6080 if (sscreen
->b
.chip_class
>= VI
)
6081 max_simd_waves
= MIN2(max_simd_waves
, 800 / conf
->num_sgprs
);
6083 max_simd_waves
= MIN2(max_simd_waves
, 512 / conf
->num_sgprs
);
6086 if (conf
->num_vgprs
)
6087 max_simd_waves
= MIN2(max_simd_waves
, 256 / conf
->num_vgprs
);
6089 /* LDS is 64KB per CU (4 SIMDs), divided into 16KB blocks per SIMD
6093 max_simd_waves
= MIN2(max_simd_waves
, 16384 / lds_per_wave
);
6095 if (file
!= stderr
||
6096 r600_can_dump_shader(&sscreen
->b
, processor
)) {
6097 if (processor
== PIPE_SHADER_FRAGMENT
) {
6098 fprintf(file
, "*** SHADER CONFIG ***\n"
6099 "SPI_PS_INPUT_ADDR = 0x%04x\n"
6100 "SPI_PS_INPUT_ENA = 0x%04x\n",
6101 conf
->spi_ps_input_addr
, conf
->spi_ps_input_ena
);
6104 fprintf(file
, "*** SHADER STATS ***\n"
6107 "Spilled VGPRs: %d\n"
6108 "Code Size: %d bytes\n"
6110 "Scratch: %d bytes per wave\n"
6112 "********************\n",
6113 conf
->num_sgprs
, conf
->num_vgprs
, spilled_vgprs
, code_size
,
6114 conf
->lds_size
, conf
->scratch_bytes_per_wave
,
6118 pipe_debug_message(debug
, SHADER_INFO
,
6119 "Shader Stats: SGPRS: %d VGPRS: %d Code Size: %d "
6120 "LDS: %d Scratch: %d Max Waves: %d Spilled VGPRs: %d",
6121 conf
->num_sgprs
, conf
->num_vgprs
, code_size
,
6122 conf
->lds_size
, conf
->scratch_bytes_per_wave
,
6123 max_simd_waves
, spilled_vgprs
);
6126 static const char *si_get_shader_name(struct si_shader
*shader
,
6129 switch (processor
) {
6130 case PIPE_SHADER_VERTEX
:
6131 if (shader
->key
.vs
.as_es
)
6132 return "Vertex Shader as ES";
6133 else if (shader
->key
.vs
.as_ls
)
6134 return "Vertex Shader as LS";
6136 return "Vertex Shader as VS";
6137 case PIPE_SHADER_TESS_CTRL
:
6138 return "Tessellation Control Shader";
6139 case PIPE_SHADER_TESS_EVAL
:
6140 if (shader
->key
.tes
.as_es
)
6141 return "Tessellation Evaluation Shader as ES";
6143 return "Tessellation Evaluation Shader as VS";
6144 case PIPE_SHADER_GEOMETRY
:
6145 if (shader
->gs_copy_shader
== NULL
)
6146 return "GS Copy Shader as VS";
6148 return "Geometry Shader";
6149 case PIPE_SHADER_FRAGMENT
:
6150 return "Pixel Shader";
6151 case PIPE_SHADER_COMPUTE
:
6152 return "Compute Shader";
6154 return "Unknown Shader";
6158 void si_shader_dump(struct si_screen
*sscreen
, struct si_shader
*shader
,
6159 struct pipe_debug_callback
*debug
, unsigned processor
,
6162 if (file
!= stderr
||
6163 (r600_can_dump_shader(&sscreen
->b
, processor
) &&
6164 !(sscreen
->b
.debug_flags
& DBG_NO_ASM
))) {
6165 fprintf(file
, "\n%s:\n", si_get_shader_name(shader
, processor
));
6168 si_shader_dump_disassembly(&shader
->prolog
->binary
,
6169 debug
, "prolog", file
);
6171 si_shader_dump_disassembly(&shader
->binary
, debug
, "main", file
);
6174 si_shader_dump_disassembly(&shader
->epilog
->binary
,
6175 debug
, "epilog", file
);
6176 fprintf(file
, "\n");
6179 si_shader_dump_stats(sscreen
, &shader
->config
,
6180 shader
->selector
? shader
->selector
->info
.num_inputs
: 0,
6181 si_get_shader_binary_size(shader
), debug
, processor
,
6185 int si_compile_llvm(struct si_screen
*sscreen
,
6186 struct radeon_shader_binary
*binary
,
6187 struct si_shader_config
*conf
,
6188 LLVMTargetMachineRef tm
,
6190 struct pipe_debug_callback
*debug
,
6195 unsigned count
= p_atomic_inc_return(&sscreen
->b
.num_compilations
);
6197 if (r600_can_dump_shader(&sscreen
->b
, processor
)) {
6198 fprintf(stderr
, "radeonsi: Compiling shader %d\n", count
);
6200 if (!(sscreen
->b
.debug_flags
& (DBG_NO_IR
| DBG_PREOPT_IR
))) {
6201 fprintf(stderr
, "%s LLVM IR:\n\n", name
);
6202 LLVMDumpModule(mod
);
6203 fprintf(stderr
, "\n");
6207 if (!si_replace_shader(count
, binary
)) {
6208 r
= radeon_llvm_compile(mod
, binary
, tm
, debug
);
6213 si_shader_binary_read_config(binary
, conf
, 0);
6215 /* Enable 64-bit and 16-bit denormals, because there is no performance
6218 * If denormals are enabled, all floating-point output modifiers are
6221 * Don't enable denormals for 32-bit floats, because:
6222 * - Floating-point output modifiers would be ignored by the hw.
6223 * - Some opcodes don't support denormals, such as v_mad_f32. We would
6224 * have to stop using those.
6225 * - SI & CI would be very slow.
6227 conf
->float_mode
|= V_00B028_FP_64_DENORMS
;
6229 FREE(binary
->config
);
6230 FREE(binary
->global_symbol_offsets
);
6231 binary
->config
= NULL
;
6232 binary
->global_symbol_offsets
= NULL
;
6234 /* Some shaders can't have rodata because their binaries can be
6237 if (binary
->rodata_size
&&
6238 (processor
== PIPE_SHADER_VERTEX
||
6239 processor
== PIPE_SHADER_TESS_CTRL
||
6240 processor
== PIPE_SHADER_TESS_EVAL
||
6241 processor
== PIPE_SHADER_FRAGMENT
)) {
6242 fprintf(stderr
, "radeonsi: The shader can't have rodata.");
6249 static void si_llvm_build_ret(struct si_shader_context
*ctx
, LLVMValueRef ret
)
6251 if (LLVMGetTypeKind(LLVMTypeOf(ret
)) == LLVMVoidTypeKind
)
6252 LLVMBuildRetVoid(ctx
->radeon_bld
.gallivm
.builder
);
6254 LLVMBuildRet(ctx
->radeon_bld
.gallivm
.builder
, ret
);
6257 /* Generate code for the hardware VS shader stage to go with a geometry shader */
6258 static int si_generate_gs_copy_shader(struct si_screen
*sscreen
,
6259 struct si_shader_context
*ctx
,
6260 struct si_shader
*gs
,
6261 struct pipe_debug_callback
*debug
)
6263 struct gallivm_state
*gallivm
= &ctx
->radeon_bld
.gallivm
;
6264 struct lp_build_tgsi_context
*bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
6265 struct lp_build_context
*uint
= &bld_base
->uint_bld
;
6266 struct si_shader_output_values
*outputs
;
6267 struct tgsi_shader_info
*gsinfo
= &gs
->selector
->info
;
6268 LLVMValueRef args
[9];
6271 outputs
= MALLOC(gsinfo
->num_outputs
* sizeof(outputs
[0]));
6273 si_init_shader_ctx(ctx
, sscreen
, ctx
->shader
, ctx
->tm
);
6274 ctx
->type
= PIPE_SHADER_VERTEX
;
6275 ctx
->is_gs_copy_shader
= true;
6277 create_meta_data(ctx
);
6278 create_function(ctx
);
6279 preload_streamout_buffers(ctx
);
6280 preload_ring_buffers(ctx
);
6282 args
[0] = ctx
->gsvs_ring
[0];
6283 args
[1] = lp_build_mul_imm(uint
,
6284 LLVMGetParam(ctx
->radeon_bld
.main_fn
,
6285 ctx
->param_vertex_id
),
6287 args
[3] = uint
->zero
;
6288 args
[4] = uint
->one
; /* OFFEN */
6289 args
[5] = uint
->zero
; /* IDXEN */
6290 args
[6] = uint
->one
; /* GLC */
6291 args
[7] = uint
->one
; /* SLC */
6292 args
[8] = uint
->zero
; /* TFE */
6294 /* Fetch vertex data from GSVS ring */
6295 for (i
= 0; i
< gsinfo
->num_outputs
; ++i
) {
6298 outputs
[i
].name
= gsinfo
->output_semantic_name
[i
];
6299 outputs
[i
].sid
= gsinfo
->output_semantic_index
[i
];
6301 for (chan
= 0; chan
< 4; chan
++) {
6302 args
[2] = lp_build_const_int32(gallivm
,
6304 gs
->selector
->gs_max_out_vertices
* 16 * 4);
6306 outputs
[i
].values
[chan
] =
6307 LLVMBuildBitCast(gallivm
->builder
,
6308 lp_build_intrinsic(gallivm
->builder
,
6309 "llvm.SI.buffer.load.dword.i32.i32",
6311 LLVMReadOnlyAttribute
| LLVMNoUnwindAttribute
),
6316 si_llvm_export_vs(bld_base
, outputs
, gsinfo
->num_outputs
);
6318 LLVMBuildRetVoid(gallivm
->builder
);
6320 /* Dump LLVM IR before any optimization passes */
6321 if (sscreen
->b
.debug_flags
& DBG_PREOPT_IR
&&
6322 r600_can_dump_shader(&sscreen
->b
, PIPE_SHADER_GEOMETRY
))
6323 LLVMDumpModule(bld_base
->base
.gallivm
->module
);
6325 radeon_llvm_finalize_module(&ctx
->radeon_bld
);
6327 r
= si_compile_llvm(sscreen
, &ctx
->shader
->binary
,
6328 &ctx
->shader
->config
, ctx
->tm
,
6329 bld_base
->base
.gallivm
->module
,
6330 debug
, PIPE_SHADER_GEOMETRY
,
6333 if (r600_can_dump_shader(&sscreen
->b
, PIPE_SHADER_GEOMETRY
))
6334 fprintf(stderr
, "GS Copy Shader:\n");
6335 si_shader_dump(sscreen
, ctx
->shader
, debug
,
6336 PIPE_SHADER_GEOMETRY
, stderr
);
6337 r
= si_shader_binary_upload(sscreen
, ctx
->shader
);
6340 radeon_llvm_dispose(&ctx
->radeon_bld
);
6346 void si_dump_shader_key(unsigned shader
, union si_shader_key
*key
, FILE *f
)
6350 fprintf(f
, "SHADER KEY\n");
6353 case PIPE_SHADER_VERTEX
:
6354 fprintf(f
, " instance_divisors = {");
6355 for (i
= 0; i
< ARRAY_SIZE(key
->vs
.prolog
.instance_divisors
); i
++)
6356 fprintf(f
, !i
? "%u" : ", %u",
6357 key
->vs
.prolog
.instance_divisors
[i
]);
6359 fprintf(f
, " as_es = %u\n", key
->vs
.as_es
);
6360 fprintf(f
, " as_ls = %u\n", key
->vs
.as_ls
);
6361 fprintf(f
, " export_prim_id = %u\n", key
->vs
.epilog
.export_prim_id
);
6364 case PIPE_SHADER_TESS_CTRL
:
6365 fprintf(f
, " prim_mode = %u\n", key
->tcs
.epilog
.prim_mode
);
6368 case PIPE_SHADER_TESS_EVAL
:
6369 fprintf(f
, " as_es = %u\n", key
->tes
.as_es
);
6370 fprintf(f
, " export_prim_id = %u\n", key
->tes
.epilog
.export_prim_id
);
6373 case PIPE_SHADER_GEOMETRY
:
6374 case PIPE_SHADER_COMPUTE
:
6377 case PIPE_SHADER_FRAGMENT
:
6378 fprintf(f
, " prolog.color_two_side = %u\n", key
->ps
.prolog
.color_two_side
);
6379 fprintf(f
, " prolog.poly_stipple = %u\n", key
->ps
.prolog
.poly_stipple
);
6380 fprintf(f
, " prolog.force_persample_interp = %u\n", key
->ps
.prolog
.force_persample_interp
);
6381 fprintf(f
, " epilog.spi_shader_col_format = 0x%x\n", key
->ps
.epilog
.spi_shader_col_format
);
6382 fprintf(f
, " epilog.color_is_int8 = 0x%X\n", key
->ps
.epilog
.color_is_int8
);
6383 fprintf(f
, " epilog.last_cbuf = %u\n", key
->ps
.epilog
.last_cbuf
);
6384 fprintf(f
, " epilog.alpha_func = %u\n", key
->ps
.epilog
.alpha_func
);
6385 fprintf(f
, " epilog.alpha_to_one = %u\n", key
->ps
.epilog
.alpha_to_one
);
6386 fprintf(f
, " epilog.poly_line_smoothing = %u\n", key
->ps
.epilog
.poly_line_smoothing
);
6387 fprintf(f
, " epilog.clamp_color = %u\n", key
->ps
.epilog
.clamp_color
);
6395 static void si_init_shader_ctx(struct si_shader_context
*ctx
,
6396 struct si_screen
*sscreen
,
6397 struct si_shader
*shader
,
6398 LLVMTargetMachineRef tm
)
6400 struct lp_build_tgsi_context
*bld_base
;
6401 struct lp_build_tgsi_action tmpl
= {};
6403 memset(ctx
, 0, sizeof(*ctx
));
6404 radeon_llvm_context_init(&ctx
->radeon_bld
, "amdgcn--");
6406 ctx
->screen
= sscreen
;
6407 if (shader
&& shader
->selector
)
6408 ctx
->type
= shader
->selector
->info
.processor
;
6411 ctx
->shader
= shader
;
6413 ctx
->voidt
= LLVMVoidTypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6414 ctx
->i1
= LLVMInt1TypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6415 ctx
->i8
= LLVMInt8TypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6416 ctx
->i32
= LLVMInt32TypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6417 ctx
->i64
= LLVMInt64TypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6418 ctx
->i128
= LLVMIntTypeInContext(ctx
->radeon_bld
.gallivm
.context
, 128);
6419 ctx
->f32
= LLVMFloatTypeInContext(ctx
->radeon_bld
.gallivm
.context
);
6420 ctx
->v16i8
= LLVMVectorType(ctx
->i8
, 16);
6421 ctx
->v2i32
= LLVMVectorType(ctx
->i32
, 2);
6422 ctx
->v4i32
= LLVMVectorType(ctx
->i32
, 4);
6423 ctx
->v4f32
= LLVMVectorType(ctx
->f32
, 4);
6424 ctx
->v8i32
= LLVMVectorType(ctx
->i32
, 8);
6426 bld_base
= &ctx
->radeon_bld
.soa
.bld_base
;
6427 if (shader
&& shader
->selector
)
6428 bld_base
->info
= &shader
->selector
->info
;
6429 bld_base
->emit_fetch_funcs
[TGSI_FILE_CONSTANT
] = fetch_constant
;
6431 bld_base
->op_actions
[TGSI_OPCODE_INTERP_CENTROID
] = interp_action
;
6432 bld_base
->op_actions
[TGSI_OPCODE_INTERP_SAMPLE
] = interp_action
;
6433 bld_base
->op_actions
[TGSI_OPCODE_INTERP_OFFSET
] = interp_action
;
6435 bld_base
->op_actions
[TGSI_OPCODE_TEX
] = tex_action
;
6436 bld_base
->op_actions
[TGSI_OPCODE_TEX2
] = tex_action
;
6437 bld_base
->op_actions
[TGSI_OPCODE_TXB
] = tex_action
;
6438 bld_base
->op_actions
[TGSI_OPCODE_TXB2
] = tex_action
;
6439 bld_base
->op_actions
[TGSI_OPCODE_TXD
] = tex_action
;
6440 bld_base
->op_actions
[TGSI_OPCODE_TXF
] = tex_action
;
6441 bld_base
->op_actions
[TGSI_OPCODE_TXL
] = tex_action
;
6442 bld_base
->op_actions
[TGSI_OPCODE_TXL2
] = tex_action
;
6443 bld_base
->op_actions
[TGSI_OPCODE_TXP
] = tex_action
;
6444 bld_base
->op_actions
[TGSI_OPCODE_TXQ
].fetch_args
= txq_fetch_args
;
6445 bld_base
->op_actions
[TGSI_OPCODE_TXQ
].emit
= txq_emit
;
6446 bld_base
->op_actions
[TGSI_OPCODE_TG4
] = tex_action
;
6447 bld_base
->op_actions
[TGSI_OPCODE_LODQ
] = tex_action
;
6448 bld_base
->op_actions
[TGSI_OPCODE_TXQS
].emit
= si_llvm_emit_txqs
;
6450 bld_base
->op_actions
[TGSI_OPCODE_LOAD
].fetch_args
= load_fetch_args
;
6451 bld_base
->op_actions
[TGSI_OPCODE_LOAD
].emit
= load_emit
;
6452 bld_base
->op_actions
[TGSI_OPCODE_STORE
].fetch_args
= store_fetch_args
;
6453 bld_base
->op_actions
[TGSI_OPCODE_STORE
].emit
= store_emit
;
6454 bld_base
->op_actions
[TGSI_OPCODE_RESQ
].fetch_args
= resq_fetch_args
;
6455 bld_base
->op_actions
[TGSI_OPCODE_RESQ
].emit
= resq_emit
;
6457 tmpl
.fetch_args
= atomic_fetch_args
;
6458 tmpl
.emit
= atomic_emit
;
6459 bld_base
->op_actions
[TGSI_OPCODE_ATOMUADD
] = tmpl
;
6460 bld_base
->op_actions
[TGSI_OPCODE_ATOMUADD
].intr_name
= "add";
6461 bld_base
->op_actions
[TGSI_OPCODE_ATOMXCHG
] = tmpl
;
6462 bld_base
->op_actions
[TGSI_OPCODE_ATOMXCHG
].intr_name
= "swap";
6463 bld_base
->op_actions
[TGSI_OPCODE_ATOMCAS
] = tmpl
;
6464 bld_base
->op_actions
[TGSI_OPCODE_ATOMCAS
].intr_name
= "cmpswap";
6465 bld_base
->op_actions
[TGSI_OPCODE_ATOMAND
] = tmpl
;
6466 bld_base
->op_actions
[TGSI_OPCODE_ATOMAND
].intr_name
= "and";
6467 bld_base
->op_actions
[TGSI_OPCODE_ATOMOR
] = tmpl
;
6468 bld_base
->op_actions
[TGSI_OPCODE_ATOMOR
].intr_name
= "or";
6469 bld_base
->op_actions
[TGSI_OPCODE_ATOMXOR
] = tmpl
;
6470 bld_base
->op_actions
[TGSI_OPCODE_ATOMXOR
].intr_name
= "xor";
6471 bld_base
->op_actions
[TGSI_OPCODE_ATOMUMIN
] = tmpl
;
6472 bld_base
->op_actions
[TGSI_OPCODE_ATOMUMIN
].intr_name
= "umin";
6473 bld_base
->op_actions
[TGSI_OPCODE_ATOMUMAX
] = tmpl
;
6474 bld_base
->op_actions
[TGSI_OPCODE_ATOMUMAX
].intr_name
= "umax";
6475 bld_base
->op_actions
[TGSI_OPCODE_ATOMIMIN
] = tmpl
;
6476 bld_base
->op_actions
[TGSI_OPCODE_ATOMIMIN
].intr_name
= "smin";
6477 bld_base
->op_actions
[TGSI_OPCODE_ATOMIMAX
] = tmpl
;
6478 bld_base
->op_actions
[TGSI_OPCODE_ATOMIMAX
].intr_name
= "smax";
6480 bld_base
->op_actions
[TGSI_OPCODE_MEMBAR
].emit
= membar_emit
;
6482 bld_base
->op_actions
[TGSI_OPCODE_DDX
].emit
= si_llvm_emit_ddxy
;
6483 bld_base
->op_actions
[TGSI_OPCODE_DDY
].emit
= si_llvm_emit_ddxy
;
6484 bld_base
->op_actions
[TGSI_OPCODE_DDX_FINE
].emit
= si_llvm_emit_ddxy
;
6485 bld_base
->op_actions
[TGSI_OPCODE_DDY_FINE
].emit
= si_llvm_emit_ddxy
;
6487 bld_base
->op_actions
[TGSI_OPCODE_EMIT
].emit
= si_llvm_emit_vertex
;
6488 bld_base
->op_actions
[TGSI_OPCODE_ENDPRIM
].emit
= si_llvm_emit_primitive
;
6489 bld_base
->op_actions
[TGSI_OPCODE_BARRIER
].emit
= si_llvm_emit_barrier
;
6491 bld_base
->op_actions
[TGSI_OPCODE_MAX
].emit
= build_tgsi_intrinsic_nomem
;
6492 bld_base
->op_actions
[TGSI_OPCODE_MAX
].intr_name
= "llvm.maxnum.f32";
6493 bld_base
->op_actions
[TGSI_OPCODE_MIN
].emit
= build_tgsi_intrinsic_nomem
;
6494 bld_base
->op_actions
[TGSI_OPCODE_MIN
].intr_name
= "llvm.minnum.f32";
6497 int si_compile_tgsi_shader(struct si_screen
*sscreen
,
6498 LLVMTargetMachineRef tm
,
6499 struct si_shader
*shader
,
6501 struct pipe_debug_callback
*debug
)
6503 struct si_shader_selector
*sel
= shader
->selector
;
6504 struct si_shader_context ctx
;
6505 struct lp_build_tgsi_context
*bld_base
;
6509 /* Dump TGSI code before doing TGSI->LLVM conversion in case the
6510 * conversion fails. */
6511 if (r600_can_dump_shader(&sscreen
->b
, sel
->info
.processor
) &&
6512 !(sscreen
->b
.debug_flags
& DBG_NO_TGSI
)) {
6513 si_dump_shader_key(sel
->type
, &shader
->key
, stderr
);
6514 tgsi_dump(sel
->tokens
, 0);
6515 si_dump_streamout(&sel
->so
);
6518 si_init_shader_ctx(&ctx
, sscreen
, shader
, tm
);
6519 ctx
.is_monolithic
= is_monolithic
;
6521 shader
->info
.uses_instanceid
= sel
->info
.uses_instanceid
;
6523 bld_base
= &ctx
.radeon_bld
.soa
.bld_base
;
6524 ctx
.radeon_bld
.load_system_value
= declare_system_value
;
6527 case PIPE_SHADER_VERTEX
:
6528 ctx
.radeon_bld
.load_input
= declare_input_vs
;
6529 if (shader
->key
.vs
.as_ls
)
6530 bld_base
->emit_epilogue
= si_llvm_emit_ls_epilogue
;
6531 else if (shader
->key
.vs
.as_es
)
6532 bld_base
->emit_epilogue
= si_llvm_emit_es_epilogue
;
6534 bld_base
->emit_epilogue
= si_llvm_emit_vs_epilogue
;
6536 case PIPE_SHADER_TESS_CTRL
:
6537 bld_base
->emit_fetch_funcs
[TGSI_FILE_INPUT
] = fetch_input_tcs
;
6538 bld_base
->emit_fetch_funcs
[TGSI_FILE_OUTPUT
] = fetch_output_tcs
;
6539 bld_base
->emit_store
= store_output_tcs
;
6540 bld_base
->emit_epilogue
= si_llvm_emit_tcs_epilogue
;
6542 case PIPE_SHADER_TESS_EVAL
:
6543 bld_base
->emit_fetch_funcs
[TGSI_FILE_INPUT
] = fetch_input_tes
;
6544 if (shader
->key
.tes
.as_es
)
6545 bld_base
->emit_epilogue
= si_llvm_emit_es_epilogue
;
6547 bld_base
->emit_epilogue
= si_llvm_emit_vs_epilogue
;
6549 case PIPE_SHADER_GEOMETRY
:
6550 bld_base
->emit_fetch_funcs
[TGSI_FILE_INPUT
] = fetch_input_gs
;
6551 bld_base
->emit_epilogue
= si_llvm_emit_gs_epilogue
;
6553 case PIPE_SHADER_FRAGMENT
:
6554 ctx
.radeon_bld
.load_input
= declare_input_fs
;
6556 bld_base
->emit_epilogue
= si_llvm_emit_fs_epilogue
;
6558 bld_base
->emit_epilogue
= si_llvm_return_fs_outputs
;
6560 case PIPE_SHADER_COMPUTE
:
6561 ctx
.radeon_bld
.declare_memory_region
= declare_compute_memory
;
6564 assert(!"Unsupported shader type");
6568 create_meta_data(&ctx
);
6569 create_function(&ctx
);
6570 preload_constants(&ctx
);
6571 preload_shader_buffers(&ctx
);
6572 preload_samplers(&ctx
);
6573 preload_images(&ctx
);
6574 preload_streamout_buffers(&ctx
);
6575 preload_ring_buffers(&ctx
);
6577 if (ctx
.is_monolithic
&& sel
->type
== PIPE_SHADER_FRAGMENT
&&
6578 shader
->key
.ps
.prolog
.poly_stipple
) {
6579 LLVMValueRef list
= LLVMGetParam(ctx
.radeon_bld
.main_fn
,
6580 SI_PARAM_RW_BUFFERS
);
6581 si_llvm_emit_polygon_stipple(&ctx
, list
,
6582 SI_PARAM_POS_FIXED_PT
);
6585 if (ctx
.type
== PIPE_SHADER_GEOMETRY
) {
6587 for (i
= 0; i
< 4; i
++) {
6588 ctx
.gs_next_vertex
[i
] =
6589 lp_build_alloca(bld_base
->base
.gallivm
,
6594 if (!lp_build_tgsi_llvm(bld_base
, sel
->tokens
)) {
6595 fprintf(stderr
, "Failed to translate shader from TGSI to LLVM\n");
6599 si_llvm_build_ret(&ctx
, ctx
.return_value
);
6600 mod
= bld_base
->base
.gallivm
->module
;
6602 /* Dump LLVM IR before any optimization passes */
6603 if (sscreen
->b
.debug_flags
& DBG_PREOPT_IR
&&
6604 r600_can_dump_shader(&sscreen
->b
, ctx
.type
))
6605 LLVMDumpModule(mod
);
6607 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
6609 r
= si_compile_llvm(sscreen
, &shader
->binary
, &shader
->config
, tm
,
6610 mod
, debug
, ctx
.type
, "TGSI shader");
6612 fprintf(stderr
, "LLVM failed to compile shader\n");
6616 radeon_llvm_dispose(&ctx
.radeon_bld
);
6618 /* Add the scratch offset to input SGPRs. */
6619 if (shader
->config
.scratch_bytes_per_wave
)
6620 shader
->info
.num_input_sgprs
+= 1; /* scratch byte offset */
6622 /* Calculate the number of fragment input VGPRs. */
6623 if (ctx
.type
== PIPE_SHADER_FRAGMENT
) {
6624 shader
->info
.num_input_vgprs
= 0;
6625 shader
->info
.face_vgpr_index
= -1;
6627 if (G_0286CC_PERSP_SAMPLE_ENA(shader
->config
.spi_ps_input_addr
))
6628 shader
->info
.num_input_vgprs
+= 2;
6629 if (G_0286CC_PERSP_CENTER_ENA(shader
->config
.spi_ps_input_addr
))
6630 shader
->info
.num_input_vgprs
+= 2;
6631 if (G_0286CC_PERSP_CENTROID_ENA(shader
->config
.spi_ps_input_addr
))
6632 shader
->info
.num_input_vgprs
+= 2;
6633 if (G_0286CC_PERSP_PULL_MODEL_ENA(shader
->config
.spi_ps_input_addr
))
6634 shader
->info
.num_input_vgprs
+= 3;
6635 if (G_0286CC_LINEAR_SAMPLE_ENA(shader
->config
.spi_ps_input_addr
))
6636 shader
->info
.num_input_vgprs
+= 2;
6637 if (G_0286CC_LINEAR_CENTER_ENA(shader
->config
.spi_ps_input_addr
))
6638 shader
->info
.num_input_vgprs
+= 2;
6639 if (G_0286CC_LINEAR_CENTROID_ENA(shader
->config
.spi_ps_input_addr
))
6640 shader
->info
.num_input_vgprs
+= 2;
6641 if (G_0286CC_LINE_STIPPLE_TEX_ENA(shader
->config
.spi_ps_input_addr
))
6642 shader
->info
.num_input_vgprs
+= 1;
6643 if (G_0286CC_POS_X_FLOAT_ENA(shader
->config
.spi_ps_input_addr
))
6644 shader
->info
.num_input_vgprs
+= 1;
6645 if (G_0286CC_POS_Y_FLOAT_ENA(shader
->config
.spi_ps_input_addr
))
6646 shader
->info
.num_input_vgprs
+= 1;
6647 if (G_0286CC_POS_Z_FLOAT_ENA(shader
->config
.spi_ps_input_addr
))
6648 shader
->info
.num_input_vgprs
+= 1;
6649 if (G_0286CC_POS_W_FLOAT_ENA(shader
->config
.spi_ps_input_addr
))
6650 shader
->info
.num_input_vgprs
+= 1;
6651 if (G_0286CC_FRONT_FACE_ENA(shader
->config
.spi_ps_input_addr
)) {
6652 shader
->info
.face_vgpr_index
= shader
->info
.num_input_vgprs
;
6653 shader
->info
.num_input_vgprs
+= 1;
6655 if (G_0286CC_ANCILLARY_ENA(shader
->config
.spi_ps_input_addr
))
6656 shader
->info
.num_input_vgprs
+= 1;
6657 if (G_0286CC_SAMPLE_COVERAGE_ENA(shader
->config
.spi_ps_input_addr
))
6658 shader
->info
.num_input_vgprs
+= 1;
6659 if (G_0286CC_POS_FIXED_PT_ENA(shader
->config
.spi_ps_input_addr
))
6660 shader
->info
.num_input_vgprs
+= 1;
6663 if (ctx
.type
== PIPE_SHADER_GEOMETRY
) {
6664 shader
->gs_copy_shader
= CALLOC_STRUCT(si_shader
);
6665 shader
->gs_copy_shader
->selector
= shader
->selector
;
6666 ctx
.shader
= shader
->gs_copy_shader
;
6667 if ((r
= si_generate_gs_copy_shader(sscreen
, &ctx
,
6669 free(shader
->gs_copy_shader
);
6670 shader
->gs_copy_shader
= NULL
;
6676 for (int i
= 0; i
< SI_NUM_CONST_BUFFERS
; i
++)
6677 FREE(ctx
.constants
[i
]);
6682 * Create, compile and return a shader part (prolog or epilog).
6684 * \param sscreen screen
6685 * \param list list of shader parts of the same category
6686 * \param key shader part key
6687 * \param tm LLVM target machine
6688 * \param debug debug callback
6689 * \param compile the callback responsible for compilation
6690 * \return non-NULL on success
6692 static struct si_shader_part
*
6693 si_get_shader_part(struct si_screen
*sscreen
,
6694 struct si_shader_part
**list
,
6695 union si_shader_part_key
*key
,
6696 LLVMTargetMachineRef tm
,
6697 struct pipe_debug_callback
*debug
,
6698 bool (*compile
)(struct si_screen
*,
6699 LLVMTargetMachineRef
,
6700 struct pipe_debug_callback
*,
6701 struct si_shader_part
*))
6703 struct si_shader_part
*result
;
6705 pipe_mutex_lock(sscreen
->shader_parts_mutex
);
6707 /* Find existing. */
6708 for (result
= *list
; result
; result
= result
->next
) {
6709 if (memcmp(&result
->key
, key
, sizeof(*key
)) == 0) {
6710 pipe_mutex_unlock(sscreen
->shader_parts_mutex
);
6715 /* Compile a new one. */
6716 result
= CALLOC_STRUCT(si_shader_part
);
6718 if (!compile(sscreen
, tm
, debug
, result
)) {
6720 pipe_mutex_unlock(sscreen
->shader_parts_mutex
);
6724 result
->next
= *list
;
6726 pipe_mutex_unlock(sscreen
->shader_parts_mutex
);
6731 * Create a vertex shader prolog.
6733 * The inputs are the same as VS (a lot of SGPRs and 4 VGPR system values).
6734 * All inputs are returned unmodified. The vertex load indices are
6735 * stored after them, which will used by the API VS for fetching inputs.
6737 * For example, the expected outputs for instance_divisors[] = {0, 1, 2} are:
6742 * (VertexID + BaseVertex),
6743 * (InstanceID + StartInstance),
6744 * (InstanceID / 2 + StartInstance)
6746 static bool si_compile_vs_prolog(struct si_screen
*sscreen
,
6747 LLVMTargetMachineRef tm
,
6748 struct pipe_debug_callback
*debug
,
6749 struct si_shader_part
*out
)
6751 union si_shader_part_key
*key
= &out
->key
;
6752 struct si_shader shader
= {};
6753 struct si_shader_context ctx
;
6754 struct gallivm_state
*gallivm
= &ctx
.radeon_bld
.gallivm
;
6755 LLVMTypeRef
*params
, *returns
;
6756 LLVMValueRef ret
, func
;
6757 int last_sgpr
, num_params
, num_returns
, i
;
6760 si_init_shader_ctx(&ctx
, sscreen
, &shader
, tm
);
6761 ctx
.type
= PIPE_SHADER_VERTEX
;
6762 ctx
.param_vertex_id
= key
->vs_prolog
.num_input_sgprs
;
6763 ctx
.param_instance_id
= key
->vs_prolog
.num_input_sgprs
+ 3;
6765 /* 4 preloaded VGPRs + vertex load indices as prolog outputs */
6766 params
= alloca((key
->vs_prolog
.num_input_sgprs
+ 4) *
6767 sizeof(LLVMTypeRef
));
6768 returns
= alloca((key
->vs_prolog
.num_input_sgprs
+ 4 +
6769 key
->vs_prolog
.last_input
+ 1) *
6770 sizeof(LLVMTypeRef
));
6774 /* Declare input and output SGPRs. */
6776 for (i
= 0; i
< key
->vs_prolog
.num_input_sgprs
; i
++) {
6777 params
[num_params
++] = ctx
.i32
;
6778 returns
[num_returns
++] = ctx
.i32
;
6780 last_sgpr
= num_params
- 1;
6782 /* 4 preloaded VGPRs (outputs must be floats) */
6783 for (i
= 0; i
< 4; i
++) {
6784 params
[num_params
++] = ctx
.i32
;
6785 returns
[num_returns
++] = ctx
.f32
;
6788 /* Vertex load indices. */
6789 for (i
= 0; i
<= key
->vs_prolog
.last_input
; i
++)
6790 returns
[num_returns
++] = ctx
.f32
;
6792 /* Create the function. */
6793 si_create_function(&ctx
, returns
, num_returns
, params
,
6794 num_params
, -1, last_sgpr
);
6795 func
= ctx
.radeon_bld
.main_fn
;
6797 /* Copy inputs to outputs. This should be no-op, as the registers match,
6798 * but it will prevent the compiler from overwriting them unintentionally.
6800 ret
= ctx
.return_value
;
6801 for (i
= 0; i
< key
->vs_prolog
.num_input_sgprs
; i
++) {
6802 LLVMValueRef p
= LLVMGetParam(func
, i
);
6803 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
, p
, i
, "");
6805 for (i
= num_params
- 4; i
< num_params
; i
++) {
6806 LLVMValueRef p
= LLVMGetParam(func
, i
);
6807 p
= LLVMBuildBitCast(gallivm
->builder
, p
, ctx
.f32
, "");
6808 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
, p
, i
, "");
6811 /* Compute vertex load indices from instance divisors. */
6812 for (i
= 0; i
<= key
->vs_prolog
.last_input
; i
++) {
6813 unsigned divisor
= key
->vs_prolog
.states
.instance_divisors
[i
];
6817 /* InstanceID / Divisor + StartInstance */
6818 index
= get_instance_index_for_fetch(&ctx
.radeon_bld
,
6819 SI_SGPR_START_INSTANCE
,
6822 /* VertexID + BaseVertex */
6823 index
= LLVMBuildAdd(gallivm
->builder
,
6824 LLVMGetParam(func
, ctx
.param_vertex_id
),
6825 LLVMGetParam(func
, SI_SGPR_BASE_VERTEX
), "");
6828 index
= LLVMBuildBitCast(gallivm
->builder
, index
, ctx
.f32
, "");
6829 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
, index
,
6834 si_llvm_build_ret(&ctx
, ret
);
6835 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
6837 if (si_compile_llvm(sscreen
, &out
->binary
, &out
->config
, tm
,
6838 gallivm
->module
, debug
, ctx
.type
,
6839 "Vertex Shader Prolog"))
6842 radeon_llvm_dispose(&ctx
.radeon_bld
);
6847 * Compile the vertex shader epilog. This is also used by the tessellation
6848 * evaluation shader compiled as VS.
6850 * The input is PrimitiveID.
6852 * If PrimitiveID is required by the pixel shader, export it.
6853 * Otherwise, do nothing.
6855 static bool si_compile_vs_epilog(struct si_screen
*sscreen
,
6856 LLVMTargetMachineRef tm
,
6857 struct pipe_debug_callback
*debug
,
6858 struct si_shader_part
*out
)
6860 union si_shader_part_key
*key
= &out
->key
;
6861 struct si_shader_context ctx
;
6862 struct gallivm_state
*gallivm
= &ctx
.radeon_bld
.gallivm
;
6863 struct lp_build_tgsi_context
*bld_base
= &ctx
.radeon_bld
.soa
.bld_base
;
6864 LLVMTypeRef params
[5];
6868 si_init_shader_ctx(&ctx
, sscreen
, NULL
, tm
);
6869 ctx
.type
= PIPE_SHADER_VERTEX
;
6871 /* Declare input VGPRs. */
6872 num_params
= key
->vs_epilog
.states
.export_prim_id
?
6873 (VS_EPILOG_PRIMID_LOC
+ 1) : 0;
6874 assert(num_params
<= ARRAY_SIZE(params
));
6876 for (i
= 0; i
< num_params
; i
++)
6877 params
[i
] = ctx
.f32
;
6879 /* Create the function. */
6880 si_create_function(&ctx
, NULL
, 0, params
, num_params
,
6884 if (key
->vs_epilog
.states
.export_prim_id
) {
6885 struct lp_build_context
*base
= &bld_base
->base
;
6886 struct lp_build_context
*uint
= &bld_base
->uint_bld
;
6887 LLVMValueRef args
[9];
6889 args
[0] = lp_build_const_int32(base
->gallivm
, 0x0); /* enabled channels */
6890 args
[1] = uint
->zero
; /* whether the EXEC mask is valid */
6891 args
[2] = uint
->zero
; /* DONE bit */
6892 args
[3] = lp_build_const_int32(base
->gallivm
, V_008DFC_SQ_EXP_PARAM
+
6893 key
->vs_epilog
.prim_id_param_offset
);
6894 args
[4] = uint
->zero
; /* COMPR flag (0 = 32-bit export) */
6895 args
[5] = LLVMGetParam(ctx
.radeon_bld
.main_fn
,
6896 VS_EPILOG_PRIMID_LOC
); /* X */
6897 args
[6] = uint
->undef
; /* Y */
6898 args
[7] = uint
->undef
; /* Z */
6899 args
[8] = uint
->undef
; /* W */
6901 lp_build_intrinsic(base
->gallivm
->builder
, "llvm.SI.export",
6902 LLVMVoidTypeInContext(base
->gallivm
->context
),
6907 LLVMBuildRetVoid(gallivm
->builder
);
6908 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
6910 if (si_compile_llvm(sscreen
, &out
->binary
, &out
->config
, tm
,
6911 gallivm
->module
, debug
, ctx
.type
,
6912 "Vertex Shader Epilog"))
6915 radeon_llvm_dispose(&ctx
.radeon_bld
);
6920 * Create & compile a vertex shader epilog. This a helper used by VS and TES.
6922 static bool si_get_vs_epilog(struct si_screen
*sscreen
,
6923 LLVMTargetMachineRef tm
,
6924 struct si_shader
*shader
,
6925 struct pipe_debug_callback
*debug
,
6926 struct si_vs_epilog_bits
*states
)
6928 union si_shader_part_key epilog_key
;
6930 memset(&epilog_key
, 0, sizeof(epilog_key
));
6931 epilog_key
.vs_epilog
.states
= *states
;
6933 /* Set up the PrimitiveID output. */
6934 if (shader
->key
.vs
.epilog
.export_prim_id
) {
6935 unsigned index
= shader
->selector
->info
.num_outputs
;
6936 unsigned offset
= shader
->info
.nr_param_exports
++;
6938 epilog_key
.vs_epilog
.prim_id_param_offset
= offset
;
6939 assert(index
< ARRAY_SIZE(shader
->info
.vs_output_param_offset
));
6940 shader
->info
.vs_output_param_offset
[index
] = offset
;
6943 shader
->epilog
= si_get_shader_part(sscreen
, &sscreen
->vs_epilogs
,
6944 &epilog_key
, tm
, debug
,
6945 si_compile_vs_epilog
);
6946 return shader
->epilog
!= NULL
;
6950 * Select and compile (or reuse) vertex shader parts (prolog & epilog).
6952 static bool si_shader_select_vs_parts(struct si_screen
*sscreen
,
6953 LLVMTargetMachineRef tm
,
6954 struct si_shader
*shader
,
6955 struct pipe_debug_callback
*debug
)
6957 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
6958 union si_shader_part_key prolog_key
;
6961 /* Get the prolog. */
6962 memset(&prolog_key
, 0, sizeof(prolog_key
));
6963 prolog_key
.vs_prolog
.states
= shader
->key
.vs
.prolog
;
6964 prolog_key
.vs_prolog
.num_input_sgprs
= shader
->info
.num_input_sgprs
;
6965 prolog_key
.vs_prolog
.last_input
= MAX2(1, info
->num_inputs
) - 1;
6967 /* The prolog is a no-op if there are no inputs. */
6968 if (info
->num_inputs
) {
6970 si_get_shader_part(sscreen
, &sscreen
->vs_prologs
,
6971 &prolog_key
, tm
, debug
,
6972 si_compile_vs_prolog
);
6973 if (!shader
->prolog
)
6977 /* Get the epilog. */
6978 if (!shader
->key
.vs
.as_es
&& !shader
->key
.vs
.as_ls
&&
6979 !si_get_vs_epilog(sscreen
, tm
, shader
, debug
,
6980 &shader
->key
.vs
.epilog
))
6983 /* Set the instanceID flag. */
6984 for (i
= 0; i
< info
->num_inputs
; i
++)
6985 if (prolog_key
.vs_prolog
.states
.instance_divisors
[i
])
6986 shader
->info
.uses_instanceid
= true;
6992 * Select and compile (or reuse) TES parts (epilog).
6994 static bool si_shader_select_tes_parts(struct si_screen
*sscreen
,
6995 LLVMTargetMachineRef tm
,
6996 struct si_shader
*shader
,
6997 struct pipe_debug_callback
*debug
)
6999 if (shader
->key
.tes
.as_es
)
7002 /* TES compiled as VS. */
7003 return si_get_vs_epilog(sscreen
, tm
, shader
, debug
,
7004 &shader
->key
.tes
.epilog
);
7008 * Compile the TCS epilog. This writes tesselation factors to memory based on
7009 * the output primitive type of the tesselator (determined by TES).
7011 static bool si_compile_tcs_epilog(struct si_screen
*sscreen
,
7012 LLVMTargetMachineRef tm
,
7013 struct pipe_debug_callback
*debug
,
7014 struct si_shader_part
*out
)
7016 union si_shader_part_key
*key
= &out
->key
;
7017 struct si_shader shader
= {};
7018 struct si_shader_context ctx
;
7019 struct gallivm_state
*gallivm
= &ctx
.radeon_bld
.gallivm
;
7020 struct lp_build_tgsi_context
*bld_base
= &ctx
.radeon_bld
.soa
.bld_base
;
7021 LLVMTypeRef params
[16];
7023 int last_array_pointer
, last_sgpr
, num_params
;
7026 si_init_shader_ctx(&ctx
, sscreen
, &shader
, tm
);
7027 ctx
.type
= PIPE_SHADER_TESS_CTRL
;
7028 shader
.key
.tcs
.epilog
= key
->tcs_epilog
.states
;
7030 /* Declare inputs. Only RW_BUFFERS and TESS_FACTOR_OFFSET are used. */
7031 params
[SI_PARAM_RW_BUFFERS
] = const_array(ctx
.v16i8
, SI_NUM_RW_BUFFERS
);
7032 last_array_pointer
= SI_PARAM_RW_BUFFERS
;
7033 params
[SI_PARAM_CONST_BUFFERS
] = ctx
.i64
;
7034 params
[SI_PARAM_SAMPLERS
] = ctx
.i64
;
7035 params
[SI_PARAM_IMAGES
] = ctx
.i64
;
7036 params
[SI_PARAM_SHADER_BUFFERS
] = ctx
.i64
;
7037 params
[SI_PARAM_TCS_OFFCHIP_LAYOUT
] = ctx
.i32
;
7038 params
[SI_PARAM_TCS_OUT_OFFSETS
] = ctx
.i32
;
7039 params
[SI_PARAM_TCS_OUT_LAYOUT
] = ctx
.i32
;
7040 params
[SI_PARAM_TCS_IN_LAYOUT
] = ctx
.i32
;
7041 params
[ctx
.param_oc_lds
= SI_PARAM_TCS_OC_LDS
] = ctx
.i32
;
7042 params
[SI_PARAM_TESS_FACTOR_OFFSET
] = ctx
.i32
;
7043 last_sgpr
= SI_PARAM_TESS_FACTOR_OFFSET
;
7044 num_params
= last_sgpr
+ 1;
7046 params
[num_params
++] = ctx
.i32
; /* patch index within the wave (REL_PATCH_ID) */
7047 params
[num_params
++] = ctx
.i32
; /* invocation ID within the patch */
7048 params
[num_params
++] = ctx
.i32
; /* LDS offset where tess factors should be loaded from */
7050 /* Create the function. */
7051 si_create_function(&ctx
, NULL
, 0, params
, num_params
,
7052 last_array_pointer
, last_sgpr
);
7053 declare_tess_lds(&ctx
);
7054 func
= ctx
.radeon_bld
.main_fn
;
7056 si_write_tess_factors(bld_base
,
7057 LLVMGetParam(func
, last_sgpr
+ 1),
7058 LLVMGetParam(func
, last_sgpr
+ 2),
7059 LLVMGetParam(func
, last_sgpr
+ 3));
7062 LLVMBuildRetVoid(gallivm
->builder
);
7063 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
7065 if (si_compile_llvm(sscreen
, &out
->binary
, &out
->config
, tm
,
7066 gallivm
->module
, debug
, ctx
.type
,
7067 "Tessellation Control Shader Epilog"))
7070 radeon_llvm_dispose(&ctx
.radeon_bld
);
7075 * Select and compile (or reuse) TCS parts (epilog).
7077 static bool si_shader_select_tcs_parts(struct si_screen
*sscreen
,
7078 LLVMTargetMachineRef tm
,
7079 struct si_shader
*shader
,
7080 struct pipe_debug_callback
*debug
)
7082 union si_shader_part_key epilog_key
;
7084 /* Get the epilog. */
7085 memset(&epilog_key
, 0, sizeof(epilog_key
));
7086 epilog_key
.tcs_epilog
.states
= shader
->key
.tcs
.epilog
;
7088 shader
->epilog
= si_get_shader_part(sscreen
, &sscreen
->tcs_epilogs
,
7089 &epilog_key
, tm
, debug
,
7090 si_compile_tcs_epilog
);
7091 return shader
->epilog
!= NULL
;
7095 * Compile the pixel shader prolog. This handles:
7096 * - two-side color selection and interpolation
7097 * - overriding interpolation parameters for the API PS
7098 * - polygon stippling
7100 * All preloaded SGPRs and VGPRs are passed through unmodified unless they are
7101 * overriden by other states. (e.g. per-sample interpolation)
7102 * Interpolated colors are stored after the preloaded VGPRs.
7104 static bool si_compile_ps_prolog(struct si_screen
*sscreen
,
7105 LLVMTargetMachineRef tm
,
7106 struct pipe_debug_callback
*debug
,
7107 struct si_shader_part
*out
)
7109 union si_shader_part_key
*key
= &out
->key
;
7110 struct si_shader shader
= {};
7111 struct si_shader_context ctx
;
7112 struct gallivm_state
*gallivm
= &ctx
.radeon_bld
.gallivm
;
7113 LLVMTypeRef
*params
;
7114 LLVMValueRef ret
, func
;
7115 int last_sgpr
, num_params
, num_returns
, i
, num_color_channels
;
7118 si_init_shader_ctx(&ctx
, sscreen
, &shader
, tm
);
7119 ctx
.type
= PIPE_SHADER_FRAGMENT
;
7120 shader
.key
.ps
.prolog
= key
->ps_prolog
.states
;
7122 /* Number of inputs + 8 color elements. */
7123 params
= alloca((key
->ps_prolog
.num_input_sgprs
+
7124 key
->ps_prolog
.num_input_vgprs
+ 8) *
7125 sizeof(LLVMTypeRef
));
7127 /* Declare inputs. */
7129 for (i
= 0; i
< key
->ps_prolog
.num_input_sgprs
; i
++)
7130 params
[num_params
++] = ctx
.i32
;
7131 last_sgpr
= num_params
- 1;
7133 for (i
= 0; i
< key
->ps_prolog
.num_input_vgprs
; i
++)
7134 params
[num_params
++] = ctx
.f32
;
7136 /* Declare outputs (same as inputs + add colors if needed) */
7137 num_returns
= num_params
;
7138 num_color_channels
= util_bitcount(key
->ps_prolog
.colors_read
);
7139 for (i
= 0; i
< num_color_channels
; i
++)
7140 params
[num_returns
++] = ctx
.f32
;
7142 /* Create the function. */
7143 si_create_function(&ctx
, params
, num_returns
, params
,
7144 num_params
, -1, last_sgpr
);
7145 func
= ctx
.radeon_bld
.main_fn
;
7147 /* Copy inputs to outputs. This should be no-op, as the registers match,
7148 * but it will prevent the compiler from overwriting them unintentionally.
7150 ret
= ctx
.return_value
;
7151 for (i
= 0; i
< num_params
; i
++) {
7152 LLVMValueRef p
= LLVMGetParam(func
, i
);
7153 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
, p
, i
, "");
7156 /* Polygon stippling. */
7157 if (key
->ps_prolog
.states
.poly_stipple
) {
7158 /* POS_FIXED_PT is always last. */
7159 unsigned pos
= key
->ps_prolog
.num_input_sgprs
+
7160 key
->ps_prolog
.num_input_vgprs
- 1;
7161 LLVMValueRef ptr
[2], list
;
7163 /* Get the pointer to rw buffers. */
7164 ptr
[0] = LLVMGetParam(func
, SI_SGPR_RW_BUFFERS
);
7165 ptr
[1] = LLVMGetParam(func
, SI_SGPR_RW_BUFFERS_HI
);
7166 list
= lp_build_gather_values(gallivm
, ptr
, 2);
7167 list
= LLVMBuildBitCast(gallivm
->builder
, list
, ctx
.i64
, "");
7168 list
= LLVMBuildIntToPtr(gallivm
->builder
, list
,
7169 const_array(ctx
.v16i8
, SI_NUM_RW_BUFFERS
), "");
7171 si_llvm_emit_polygon_stipple(&ctx
, list
, pos
);
7174 /* Interpolate colors. */
7175 for (i
= 0; i
< 2; i
++) {
7176 unsigned writemask
= (key
->ps_prolog
.colors_read
>> (i
* 4)) & 0xf;
7177 unsigned face_vgpr
= key
->ps_prolog
.num_input_sgprs
+
7178 key
->ps_prolog
.face_vgpr_index
;
7179 LLVMValueRef interp
[2], color
[4];
7180 LLVMValueRef interp_ij
= NULL
, prim_mask
= NULL
, face
= NULL
;
7185 /* If the interpolation qualifier is not CONSTANT (-1). */
7186 if (key
->ps_prolog
.color_interp_vgpr_index
[i
] != -1) {
7187 unsigned interp_vgpr
= key
->ps_prolog
.num_input_sgprs
+
7188 key
->ps_prolog
.color_interp_vgpr_index
[i
];
7190 interp
[0] = LLVMGetParam(func
, interp_vgpr
);
7191 interp
[1] = LLVMGetParam(func
, interp_vgpr
+ 1);
7192 interp_ij
= lp_build_gather_values(gallivm
, interp
, 2);
7193 interp_ij
= LLVMBuildBitCast(gallivm
->builder
, interp_ij
,
7197 /* Use the absolute location of the input. */
7198 prim_mask
= LLVMGetParam(func
, SI_PS_NUM_USER_SGPR
);
7200 if (key
->ps_prolog
.states
.color_two_side
) {
7201 face
= LLVMGetParam(func
, face_vgpr
);
7202 face
= LLVMBuildBitCast(gallivm
->builder
, face
, ctx
.i32
, "");
7205 interp_fs_input(&ctx
,
7206 key
->ps_prolog
.color_attr_index
[i
],
7207 TGSI_SEMANTIC_COLOR
, i
,
7208 key
->ps_prolog
.num_interp_inputs
,
7209 key
->ps_prolog
.colors_read
, interp_ij
,
7210 prim_mask
, face
, color
);
7213 unsigned chan
= u_bit_scan(&writemask
);
7214 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
, color
[chan
],
7219 /* Force per-sample interpolation. */
7220 if (key
->ps_prolog
.states
.force_persample_interp
) {
7221 unsigned i
, base
= key
->ps_prolog
.num_input_sgprs
;
7222 LLVMValueRef persp_sample
[2], linear_sample
[2];
7224 /* Read PERSP_SAMPLE. */
7225 for (i
= 0; i
< 2; i
++)
7226 persp_sample
[i
] = LLVMGetParam(func
, base
+ i
);
7227 /* Overwrite PERSP_CENTER. */
7228 for (i
= 0; i
< 2; i
++)
7229 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
,
7230 persp_sample
[i
], base
+ 2 + i
, "");
7231 /* Overwrite PERSP_CENTROID. */
7232 for (i
= 0; i
< 2; i
++)
7233 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
,
7234 persp_sample
[i
], base
+ 4 + i
, "");
7235 /* Read LINEAR_SAMPLE. */
7236 for (i
= 0; i
< 2; i
++)
7237 linear_sample
[i
] = LLVMGetParam(func
, base
+ 6 + i
);
7238 /* Overwrite LINEAR_CENTER. */
7239 for (i
= 0; i
< 2; i
++)
7240 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
,
7241 linear_sample
[i
], base
+ 8 + i
, "");
7242 /* Overwrite LINEAR_CENTROID. */
7243 for (i
= 0; i
< 2; i
++)
7244 ret
= LLVMBuildInsertValue(gallivm
->builder
, ret
,
7245 linear_sample
[i
], base
+ 10 + i
, "");
7248 /* Tell LLVM to insert WQM instruction sequence when needed. */
7249 if (key
->ps_prolog
.wqm
) {
7250 LLVMAddTargetDependentFunctionAttr(func
,
7251 "amdgpu-ps-wqm-outputs", "");
7255 si_llvm_build_ret(&ctx
, ret
);
7256 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
7258 if (si_compile_llvm(sscreen
, &out
->binary
, &out
->config
, tm
,
7259 gallivm
->module
, debug
, ctx
.type
,
7260 "Fragment Shader Prolog"))
7263 radeon_llvm_dispose(&ctx
.radeon_bld
);
7268 * Compile the pixel shader epilog. This handles everything that must be
7269 * emulated for pixel shader exports. (alpha-test, format conversions, etc)
7271 static bool si_compile_ps_epilog(struct si_screen
*sscreen
,
7272 LLVMTargetMachineRef tm
,
7273 struct pipe_debug_callback
*debug
,
7274 struct si_shader_part
*out
)
7276 union si_shader_part_key
*key
= &out
->key
;
7277 struct si_shader shader
= {};
7278 struct si_shader_context ctx
;
7279 struct gallivm_state
*gallivm
= &ctx
.radeon_bld
.gallivm
;
7280 struct lp_build_tgsi_context
*bld_base
= &ctx
.radeon_bld
.soa
.bld_base
;
7281 LLVMTypeRef params
[16+8*4+3];
7282 LLVMValueRef depth
= NULL
, stencil
= NULL
, samplemask
= NULL
;
7283 int last_array_pointer
, last_sgpr
, num_params
, i
;
7286 si_init_shader_ctx(&ctx
, sscreen
, &shader
, tm
);
7287 ctx
.type
= PIPE_SHADER_FRAGMENT
;
7288 shader
.key
.ps
.epilog
= key
->ps_epilog
.states
;
7290 /* Declare input SGPRs. */
7291 params
[SI_PARAM_RW_BUFFERS
] = ctx
.i64
;
7292 params
[SI_PARAM_CONST_BUFFERS
] = ctx
.i64
;
7293 params
[SI_PARAM_SAMPLERS
] = ctx
.i64
;
7294 params
[SI_PARAM_IMAGES
] = ctx
.i64
;
7295 params
[SI_PARAM_SHADER_BUFFERS
] = ctx
.i64
;
7296 params
[SI_PARAM_ALPHA_REF
] = ctx
.f32
;
7297 last_array_pointer
= -1;
7298 last_sgpr
= SI_PARAM_ALPHA_REF
;
7300 /* Declare input VGPRs. */
7301 num_params
= (last_sgpr
+ 1) +
7302 util_bitcount(key
->ps_epilog
.colors_written
) * 4 +
7303 key
->ps_epilog
.writes_z
+
7304 key
->ps_epilog
.writes_stencil
+
7305 key
->ps_epilog
.writes_samplemask
;
7307 num_params
= MAX2(num_params
,
7308 last_sgpr
+ 1 + PS_EPILOG_SAMPLEMASK_MIN_LOC
+ 1);
7310 assert(num_params
<= ARRAY_SIZE(params
));
7312 for (i
= last_sgpr
+ 1; i
< num_params
; i
++)
7313 params
[i
] = ctx
.f32
;
7315 /* Create the function. */
7316 si_create_function(&ctx
, NULL
, 0, params
, num_params
,
7317 last_array_pointer
, last_sgpr
);
7318 /* Disable elimination of unused inputs. */
7319 radeon_llvm_add_attribute(ctx
.radeon_bld
.main_fn
,
7320 "InitialPSInputAddr", 0xffffff);
7322 /* Process colors. */
7323 unsigned vgpr
= last_sgpr
+ 1;
7324 unsigned colors_written
= key
->ps_epilog
.colors_written
;
7325 int last_color_export
= -1;
7327 /* Find the last color export. */
7328 if (!key
->ps_epilog
.writes_z
&&
7329 !key
->ps_epilog
.writes_stencil
&&
7330 !key
->ps_epilog
.writes_samplemask
) {
7331 unsigned spi_format
= key
->ps_epilog
.states
.spi_shader_col_format
;
7333 /* If last_cbuf > 0, FS_COLOR0_WRITES_ALL_CBUFS is true. */
7334 if (colors_written
== 0x1 && key
->ps_epilog
.states
.last_cbuf
> 0) {
7335 /* Just set this if any of the colorbuffers are enabled. */
7337 ((1llu << (4 * (key
->ps_epilog
.states
.last_cbuf
+ 1))) - 1))
7338 last_color_export
= 0;
7340 for (i
= 0; i
< 8; i
++)
7341 if (colors_written
& (1 << i
) &&
7342 (spi_format
>> (i
* 4)) & 0xf)
7343 last_color_export
= i
;
7347 while (colors_written
) {
7348 LLVMValueRef color
[4];
7349 int mrt
= u_bit_scan(&colors_written
);
7351 for (i
= 0; i
< 4; i
++)
7352 color
[i
] = LLVMGetParam(ctx
.radeon_bld
.main_fn
, vgpr
++);
7354 si_export_mrt_color(bld_base
, color
, mrt
,
7356 mrt
== last_color_export
);
7359 /* Process depth, stencil, samplemask. */
7360 if (key
->ps_epilog
.writes_z
)
7361 depth
= LLVMGetParam(ctx
.radeon_bld
.main_fn
, vgpr
++);
7362 if (key
->ps_epilog
.writes_stencil
)
7363 stencil
= LLVMGetParam(ctx
.radeon_bld
.main_fn
, vgpr
++);
7364 if (key
->ps_epilog
.writes_samplemask
)
7365 samplemask
= LLVMGetParam(ctx
.radeon_bld
.main_fn
, vgpr
++);
7367 if (depth
|| stencil
|| samplemask
)
7368 si_export_mrt_z(bld_base
, depth
, stencil
, samplemask
);
7369 else if (last_color_export
== -1)
7370 si_export_null(bld_base
);
7373 LLVMBuildRetVoid(gallivm
->builder
);
7374 radeon_llvm_finalize_module(&ctx
.radeon_bld
);
7376 if (si_compile_llvm(sscreen
, &out
->binary
, &out
->config
, tm
,
7377 gallivm
->module
, debug
, ctx
.type
,
7378 "Fragment Shader Epilog"))
7381 radeon_llvm_dispose(&ctx
.radeon_bld
);
7386 * Select and compile (or reuse) pixel shader parts (prolog & epilog).
7388 static bool si_shader_select_ps_parts(struct si_screen
*sscreen
,
7389 LLVMTargetMachineRef tm
,
7390 struct si_shader
*shader
,
7391 struct pipe_debug_callback
*debug
)
7393 struct tgsi_shader_info
*info
= &shader
->selector
->info
;
7394 union si_shader_part_key prolog_key
;
7395 union si_shader_part_key epilog_key
;
7398 /* Get the prolog. */
7399 memset(&prolog_key
, 0, sizeof(prolog_key
));
7400 prolog_key
.ps_prolog
.states
= shader
->key
.ps
.prolog
;
7401 prolog_key
.ps_prolog
.colors_read
= info
->colors_read
;
7402 prolog_key
.ps_prolog
.num_input_sgprs
= shader
->info
.num_input_sgprs
;
7403 prolog_key
.ps_prolog
.num_input_vgprs
= shader
->info
.num_input_vgprs
;
7404 prolog_key
.ps_prolog
.wqm
= info
->uses_derivatives
&&
7405 (prolog_key
.ps_prolog
.colors_read
||
7406 prolog_key
.ps_prolog
.states
.force_persample_interp
);
7408 if (info
->colors_read
) {
7409 unsigned *color
= shader
->selector
->color_attr_index
;
7411 if (shader
->key
.ps
.prolog
.color_two_side
) {
7412 /* BCOLORs are stored after the last input. */
7413 prolog_key
.ps_prolog
.num_interp_inputs
= info
->num_inputs
;
7414 prolog_key
.ps_prolog
.face_vgpr_index
= shader
->info
.face_vgpr_index
;
7415 shader
->config
.spi_ps_input_ena
|= S_0286CC_FRONT_FACE_ENA(1);
7418 for (i
= 0; i
< 2; i
++) {
7419 unsigned location
= info
->input_interpolate_loc
[color
[i
]];
7421 if (!(info
->colors_read
& (0xf << i
*4)))
7424 prolog_key
.ps_prolog
.color_attr_index
[i
] = color
[i
];
7426 /* Force per-sample interpolation for the colors here. */
7427 if (shader
->key
.ps
.prolog
.force_persample_interp
)
7428 location
= TGSI_INTERPOLATE_LOC_SAMPLE
;
7430 switch (info
->input_interpolate
[color
[i
]]) {
7431 case TGSI_INTERPOLATE_CONSTANT
:
7432 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = -1;
7434 case TGSI_INTERPOLATE_PERSPECTIVE
:
7435 case TGSI_INTERPOLATE_COLOR
:
7437 case TGSI_INTERPOLATE_LOC_SAMPLE
:
7438 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 0;
7439 shader
->config
.spi_ps_input_ena
|=
7440 S_0286CC_PERSP_SAMPLE_ENA(1);
7442 case TGSI_INTERPOLATE_LOC_CENTER
:
7443 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 2;
7444 shader
->config
.spi_ps_input_ena
|=
7445 S_0286CC_PERSP_CENTER_ENA(1);
7447 case TGSI_INTERPOLATE_LOC_CENTROID
:
7448 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 4;
7449 shader
->config
.spi_ps_input_ena
|=
7450 S_0286CC_PERSP_CENTROID_ENA(1);
7456 case TGSI_INTERPOLATE_LINEAR
:
7458 case TGSI_INTERPOLATE_LOC_SAMPLE
:
7459 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 6;
7460 shader
->config
.spi_ps_input_ena
|=
7461 S_0286CC_LINEAR_SAMPLE_ENA(1);
7463 case TGSI_INTERPOLATE_LOC_CENTER
:
7464 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 8;
7465 shader
->config
.spi_ps_input_ena
|=
7466 S_0286CC_LINEAR_CENTER_ENA(1);
7468 case TGSI_INTERPOLATE_LOC_CENTROID
:
7469 prolog_key
.ps_prolog
.color_interp_vgpr_index
[i
] = 10;
7470 shader
->config
.spi_ps_input_ena
|=
7471 S_0286CC_LINEAR_CENTROID_ENA(1);
7483 /* The prolog is a no-op if these aren't set. */
7484 if (prolog_key
.ps_prolog
.colors_read
||
7485 prolog_key
.ps_prolog
.states
.force_persample_interp
||
7486 prolog_key
.ps_prolog
.states
.poly_stipple
) {
7488 si_get_shader_part(sscreen
, &sscreen
->ps_prologs
,
7489 &prolog_key
, tm
, debug
,
7490 si_compile_ps_prolog
);
7491 if (!shader
->prolog
)
7495 /* Get the epilog. */
7496 memset(&epilog_key
, 0, sizeof(epilog_key
));
7497 epilog_key
.ps_epilog
.colors_written
= info
->colors_written
;
7498 epilog_key
.ps_epilog
.writes_z
= info
->writes_z
;
7499 epilog_key
.ps_epilog
.writes_stencil
= info
->writes_stencil
;
7500 epilog_key
.ps_epilog
.writes_samplemask
= info
->writes_samplemask
;
7501 epilog_key
.ps_epilog
.states
= shader
->key
.ps
.epilog
;
7504 si_get_shader_part(sscreen
, &sscreen
->ps_epilogs
,
7505 &epilog_key
, tm
, debug
,
7506 si_compile_ps_epilog
);
7507 if (!shader
->epilog
)
7510 /* Enable POS_FIXED_PT if polygon stippling is enabled. */
7511 if (shader
->key
.ps
.prolog
.poly_stipple
) {
7512 shader
->config
.spi_ps_input_ena
|= S_0286CC_POS_FIXED_PT_ENA(1);
7513 assert(G_0286CC_POS_FIXED_PT_ENA(shader
->config
.spi_ps_input_addr
));
7516 /* Set up the enable bits for per-sample shading if needed. */
7517 if (shader
->key
.ps
.prolog
.force_persample_interp
) {
7518 if (G_0286CC_PERSP_CENTER_ENA(shader
->config
.spi_ps_input_ena
) ||
7519 G_0286CC_PERSP_CENTROID_ENA(shader
->config
.spi_ps_input_ena
)) {
7520 shader
->config
.spi_ps_input_ena
&= C_0286CC_PERSP_CENTER_ENA
;
7521 shader
->config
.spi_ps_input_ena
&= C_0286CC_PERSP_CENTROID_ENA
;
7522 shader
->config
.spi_ps_input_ena
|= S_0286CC_PERSP_SAMPLE_ENA(1);
7524 if (G_0286CC_LINEAR_CENTER_ENA(shader
->config
.spi_ps_input_ena
) ||
7525 G_0286CC_LINEAR_CENTROID_ENA(shader
->config
.spi_ps_input_ena
)) {
7526 shader
->config
.spi_ps_input_ena
&= C_0286CC_LINEAR_CENTER_ENA
;
7527 shader
->config
.spi_ps_input_ena
&= C_0286CC_LINEAR_CENTROID_ENA
;
7528 shader
->config
.spi_ps_input_ena
|= S_0286CC_LINEAR_SAMPLE_ENA(1);
7532 /* POW_W_FLOAT requires that one of the perspective weights is enabled. */
7533 if (G_0286CC_POS_W_FLOAT_ENA(shader
->config
.spi_ps_input_ena
) &&
7534 !(shader
->config
.spi_ps_input_ena
& 0xf)) {
7535 shader
->config
.spi_ps_input_ena
|= S_0286CC_PERSP_CENTER_ENA(1);
7536 assert(G_0286CC_PERSP_CENTER_ENA(shader
->config
.spi_ps_input_addr
));
7539 /* At least one pair of interpolation weights must be enabled. */
7540 if (!(shader
->config
.spi_ps_input_ena
& 0x7f)) {
7541 shader
->config
.spi_ps_input_ena
|= S_0286CC_LINEAR_CENTER_ENA(1);
7542 assert(G_0286CC_LINEAR_CENTER_ENA(shader
->config
.spi_ps_input_addr
));
7545 /* The sample mask input is always enabled, because the API shader always
7546 * passes it through to the epilog. Disable it here if it's unused.
7548 if (!shader
->key
.ps
.epilog
.poly_line_smoothing
&&
7549 !shader
->selector
->info
.reads_samplemask
)
7550 shader
->config
.spi_ps_input_ena
&= C_0286CC_SAMPLE_COVERAGE_ENA
;
7555 static void si_fix_num_sgprs(struct si_shader
*shader
)
7557 unsigned min_sgprs
= shader
->info
.num_input_sgprs
+ 2; /* VCC */
7559 shader
->config
.num_sgprs
= MAX2(shader
->config
.num_sgprs
, min_sgprs
);
7562 int si_shader_create(struct si_screen
*sscreen
, LLVMTargetMachineRef tm
,
7563 struct si_shader
*shader
,
7564 struct pipe_debug_callback
*debug
)
7566 struct si_shader
*mainp
= shader
->selector
->main_shader_part
;
7569 /* LS, ES, VS are compiled on demand if the main part hasn't been
7570 * compiled for that stage.
7573 (shader
->selector
->type
== PIPE_SHADER_VERTEX
&&
7574 (shader
->key
.vs
.as_es
!= mainp
->key
.vs
.as_es
||
7575 shader
->key
.vs
.as_ls
!= mainp
->key
.vs
.as_ls
)) ||
7576 (shader
->selector
->type
== PIPE_SHADER_TESS_EVAL
&&
7577 shader
->key
.tes
.as_es
!= mainp
->key
.tes
.as_es
) ||
7578 (shader
->selector
->type
== PIPE_SHADER_TESS_CTRL
&&
7579 shader
->key
.tcs
.epilog
.inputs_to_copy
) ||
7580 shader
->selector
->type
== PIPE_SHADER_COMPUTE
) {
7581 /* Monolithic shader (compiled as a whole, has many variants,
7582 * may take a long time to compile).
7584 r
= si_compile_tgsi_shader(sscreen
, tm
, shader
, true, debug
);
7588 /* The shader consists of 2-3 parts:
7590 * - the middle part is the user shader, it has 1 variant only
7591 * and it was compiled during the creation of the shader
7593 * - the prolog part is inserted at the beginning
7594 * - the epilog part is inserted at the end
7596 * The prolog and epilog have many (but simple) variants.
7599 /* Copy the compiled TGSI shader data over. */
7600 shader
->is_binary_shared
= true;
7601 shader
->binary
= mainp
->binary
;
7602 shader
->config
= mainp
->config
;
7603 shader
->info
.num_input_sgprs
= mainp
->info
.num_input_sgprs
;
7604 shader
->info
.num_input_vgprs
= mainp
->info
.num_input_vgprs
;
7605 shader
->info
.face_vgpr_index
= mainp
->info
.face_vgpr_index
;
7606 memcpy(shader
->info
.vs_output_param_offset
,
7607 mainp
->info
.vs_output_param_offset
,
7608 sizeof(mainp
->info
.vs_output_param_offset
));
7609 shader
->info
.uses_instanceid
= mainp
->info
.uses_instanceid
;
7610 shader
->info
.nr_pos_exports
= mainp
->info
.nr_pos_exports
;
7611 shader
->info
.nr_param_exports
= mainp
->info
.nr_param_exports
;
7613 /* Select prologs and/or epilogs. */
7614 switch (shader
->selector
->type
) {
7615 case PIPE_SHADER_VERTEX
:
7616 if (!si_shader_select_vs_parts(sscreen
, tm
, shader
, debug
))
7619 case PIPE_SHADER_TESS_CTRL
:
7620 if (!si_shader_select_tcs_parts(sscreen
, tm
, shader
, debug
))
7623 case PIPE_SHADER_TESS_EVAL
:
7624 if (!si_shader_select_tes_parts(sscreen
, tm
, shader
, debug
))
7627 case PIPE_SHADER_FRAGMENT
:
7628 if (!si_shader_select_ps_parts(sscreen
, tm
, shader
, debug
))
7631 /* Make sure we have at least as many VGPRs as there
7632 * are allocated inputs.
7634 shader
->config
.num_vgprs
= MAX2(shader
->config
.num_vgprs
,
7635 shader
->info
.num_input_vgprs
);
7639 /* Update SGPR and VGPR counts. */
7640 if (shader
->prolog
) {
7641 shader
->config
.num_sgprs
= MAX2(shader
->config
.num_sgprs
,
7642 shader
->prolog
->config
.num_sgprs
);
7643 shader
->config
.num_vgprs
= MAX2(shader
->config
.num_vgprs
,
7644 shader
->prolog
->config
.num_vgprs
);
7646 if (shader
->epilog
) {
7647 shader
->config
.num_sgprs
= MAX2(shader
->config
.num_sgprs
,
7648 shader
->epilog
->config
.num_sgprs
);
7649 shader
->config
.num_vgprs
= MAX2(shader
->config
.num_vgprs
,
7650 shader
->epilog
->config
.num_vgprs
);
7654 si_fix_num_sgprs(shader
);
7655 si_shader_dump(sscreen
, shader
, debug
, shader
->selector
->info
.processor
,
7659 r
= si_shader_binary_upload(sscreen
, shader
);
7661 fprintf(stderr
, "LLVM failed to upload shader\n");
7668 void si_shader_destroy(struct si_shader
*shader
)
7670 if (shader
->gs_copy_shader
) {
7671 si_shader_destroy(shader
->gs_copy_shader
);
7672 FREE(shader
->gs_copy_shader
);
7675 if (shader
->scratch_bo
)
7676 r600_resource_reference(&shader
->scratch_bo
, NULL
);
7678 r600_resource_reference(&shader
->bo
, NULL
);
7680 if (!shader
->is_binary_shared
)
7681 radeon_shader_binary_clean(&shader
->binary
);