vc4: Define a QIR branch instruction
[mesa.git] / src / gallium / drivers / vc4 / vc4_qir.h
1 /*
2 * Copyright © 2014 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
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
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #ifndef VC4_QIR_H
25 #define VC4_QIR_H
26
27 #include <assert.h>
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <string.h>
33
34 #include "util/macros.h"
35 #include "compiler/nir/nir.h"
36 #include "util/list.h"
37 #include "util/u_math.h"
38
39 #include "vc4_screen.h"
40 #include "vc4_qpu_defines.h"
41 #include "vc4_qpu.h"
42 #include "kernel/vc4_packet.h"
43 #include "pipe/p_state.h"
44
45 struct nir_builder;
46
47 enum qfile {
48 QFILE_NULL,
49 QFILE_TEMP,
50 QFILE_VARY,
51 QFILE_UNIF,
52 QFILE_VPM,
53 QFILE_TLB_COLOR_WRITE,
54 QFILE_TLB_COLOR_WRITE_MS,
55 QFILE_TLB_Z_WRITE,
56 QFILE_TLB_STENCIL_SETUP,
57
58 /* Payload registers that aren't in the physical register file, so we
59 * can just use the corresponding qpu_reg at qpu_emit time.
60 */
61 QFILE_FRAG_X,
62 QFILE_FRAG_Y,
63 QFILE_FRAG_REV_FLAG,
64
65 /**
66 * Stores an immediate value in the index field that will be used
67 * directly by qpu_load_imm().
68 */
69 QFILE_LOAD_IMM,
70
71 /**
72 * Stores an immediate value in the index field that can be turned
73 * into a small immediate field by qpu_encode_small_immediate().
74 */
75 QFILE_SMALL_IMM,
76 };
77
78 struct qreg {
79 enum qfile file;
80 uint32_t index;
81 int pack;
82 };
83
84 static inline struct qreg qir_reg(enum qfile file, uint32_t index)
85 {
86 return (struct qreg){file, index};
87 }
88
89 enum qop {
90 QOP_UNDEF,
91 QOP_MOV,
92 QOP_FMOV,
93 QOP_MMOV,
94 QOP_FADD,
95 QOP_FSUB,
96 QOP_FMUL,
97 QOP_V8MULD,
98 QOP_V8MIN,
99 QOP_V8MAX,
100 QOP_V8ADDS,
101 QOP_V8SUBS,
102 QOP_MUL24,
103 QOP_FMIN,
104 QOP_FMAX,
105 QOP_FMINABS,
106 QOP_FMAXABS,
107 QOP_ADD,
108 QOP_SUB,
109 QOP_SHL,
110 QOP_SHR,
111 QOP_ASR,
112 QOP_MIN,
113 QOP_MAX,
114 QOP_AND,
115 QOP_OR,
116 QOP_XOR,
117 QOP_NOT,
118
119 QOP_FTOI,
120 QOP_ITOF,
121 QOP_RCP,
122 QOP_RSQ,
123 QOP_EXP2,
124 QOP_LOG2,
125 QOP_VW_SETUP,
126 QOP_VR_SETUP,
127 QOP_TLB_COLOR_READ,
128 QOP_MS_MASK,
129 QOP_VARY_ADD_C,
130
131 QOP_FRAG_Z,
132 QOP_FRAG_W,
133
134 /** Texture x coordinate parameter write */
135 QOP_TEX_S,
136 /** Texture y coordinate parameter write */
137 QOP_TEX_T,
138 /** Texture border color parameter or cube map z coordinate write */
139 QOP_TEX_R,
140 /** Texture LOD bias parameter write */
141 QOP_TEX_B,
142
143 /**
144 * Texture-unit 4-byte read with address provided direct in S
145 * cooordinate.
146 *
147 * The first operand is the offset from the start of the UBO, and the
148 * second is the uniform that has the UBO's base pointer.
149 */
150 QOP_TEX_DIRECT,
151
152 /**
153 * Signal of texture read being necessary and then reading r4 into
154 * the destination
155 */
156 QOP_TEX_RESULT,
157
158 QOP_LOAD_IMM,
159
160 /* Jumps to block->successor[0] if the qinst->cond (as a
161 * QPU_COND_BRANCH_*) passes, or block->successor[1] if not. Note
162 * that block->successor[1] may be unset if the condition is ALWAYS.
163 */
164 QOP_BRANCH,
165 };
166
167 struct queued_qpu_inst {
168 struct list_head link;
169 uint64_t inst;
170 };
171
172 struct qinst {
173 struct list_head link;
174
175 enum qop op;
176 struct qreg dst;
177 struct qreg *src;
178 bool sf;
179 uint8_t cond;
180 };
181
182 enum qstage {
183 /**
184 * Coordinate shader, runs during binning, before the VS, and just
185 * outputs position.
186 */
187 QSTAGE_COORD,
188 QSTAGE_VERT,
189 QSTAGE_FRAG,
190 };
191
192 enum quniform_contents {
193 /**
194 * Indicates that a constant 32-bit value is copied from the program's
195 * uniform contents.
196 */
197 QUNIFORM_CONSTANT,
198 /**
199 * Indicates that the program's uniform contents are used as an index
200 * into the GL uniform storage.
201 */
202 QUNIFORM_UNIFORM,
203
204 /** @{
205 * Scaling factors from clip coordinates to relative to the viewport
206 * center.
207 *
208 * This is used by the coordinate and vertex shaders to produce the
209 * 32-bit entry consisting of 2 16-bit fields with 12.4 signed fixed
210 * point offsets from the viewport ccenter.
211 */
212 QUNIFORM_VIEWPORT_X_SCALE,
213 QUNIFORM_VIEWPORT_Y_SCALE,
214 /** @} */
215
216 QUNIFORM_VIEWPORT_Z_OFFSET,
217 QUNIFORM_VIEWPORT_Z_SCALE,
218
219 QUNIFORM_USER_CLIP_PLANE,
220
221 /**
222 * A reference to a texture config parameter 0 uniform.
223 *
224 * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
225 * defines texture type, miplevels, and such. It will be found as a
226 * parameter to the first QOP_TEX_[STRB] instruction in a sequence.
227 */
228 QUNIFORM_TEXTURE_CONFIG_P0,
229
230 /**
231 * A reference to a texture config parameter 1 uniform.
232 *
233 * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
234 * defines texture width, height, filters, and wrap modes. It will be
235 * found as a parameter to the second QOP_TEX_[STRB] instruction in a
236 * sequence.
237 */
238 QUNIFORM_TEXTURE_CONFIG_P1,
239
240 /** A reference to a texture config parameter 2 cubemap stride uniform */
241 QUNIFORM_TEXTURE_CONFIG_P2,
242
243 QUNIFORM_TEXTURE_MSAA_ADDR,
244
245 QUNIFORM_UBO_ADDR,
246
247 QUNIFORM_TEXRECT_SCALE_X,
248 QUNIFORM_TEXRECT_SCALE_Y,
249
250 QUNIFORM_TEXTURE_BORDER_COLOR,
251
252 QUNIFORM_BLEND_CONST_COLOR_X,
253 QUNIFORM_BLEND_CONST_COLOR_Y,
254 QUNIFORM_BLEND_CONST_COLOR_Z,
255 QUNIFORM_BLEND_CONST_COLOR_W,
256 QUNIFORM_BLEND_CONST_COLOR_RGBA,
257 QUNIFORM_BLEND_CONST_COLOR_AAAA,
258
259 QUNIFORM_STENCIL,
260
261 QUNIFORM_ALPHA_REF,
262 QUNIFORM_SAMPLE_MASK,
263 };
264
265 struct vc4_varying_slot {
266 uint8_t slot;
267 uint8_t swizzle;
268 };
269
270 struct vc4_compiler_ubo_range {
271 /**
272 * offset in bytes from the start of the ubo where this range is
273 * uploaded.
274 *
275 * Only set once used is set.
276 */
277 uint32_t dst_offset;
278
279 /**
280 * offset in bytes from the start of the gallium uniforms where the
281 * data comes from.
282 */
283 uint32_t src_offset;
284
285 /** size in bytes of this ubo range */
286 uint32_t size;
287
288 /**
289 * Set if this range is used by the shader for indirect uniforms
290 * access.
291 */
292 bool used;
293 };
294
295 struct vc4_key {
296 struct vc4_uncompiled_shader *shader_state;
297 struct {
298 enum pipe_format format;
299 uint8_t swizzle[4];
300 union {
301 struct {
302 unsigned compare_mode:1;
303 unsigned compare_func:3;
304 unsigned wrap_s:3;
305 unsigned wrap_t:3;
306 };
307 struct {
308 uint16_t msaa_width, msaa_height;
309 };
310 };
311 } tex[VC4_MAX_TEXTURE_SAMPLERS];
312 uint8_t ucp_enables;
313 };
314
315 struct vc4_fs_key {
316 struct vc4_key base;
317 enum pipe_format color_format;
318 bool depth_enabled;
319 bool stencil_enabled;
320 bool stencil_twoside;
321 bool stencil_full_writemasks;
322 bool is_points;
323 bool is_lines;
324 bool alpha_test;
325 bool point_coord_upper_left;
326 bool light_twoside;
327 bool msaa;
328 bool sample_coverage;
329 bool sample_alpha_to_coverage;
330 bool sample_alpha_to_one;
331 uint8_t alpha_test_func;
332 uint8_t logicop_func;
333 uint32_t point_sprite_mask;
334
335 struct pipe_rt_blend_state blend;
336 };
337
338 struct vc4_vs_key {
339 struct vc4_key base;
340
341 /**
342 * This is a proxy for the array of FS input semantics, which is
343 * larger than we would want to put in the key.
344 */
345 uint64_t compiled_fs_id;
346
347 enum pipe_format attr_formats[8];
348 bool is_coord;
349 bool per_vertex_point_size;
350 bool clamp_color;
351 };
352
353 /** A basic block of QIR intructions. */
354 struct qblock {
355 struct list_head link;
356
357 struct list_head instructions;
358
359 struct set *predecessors;
360 struct qblock *successors[2];
361
362 int index;
363
364 /** @{ used by vc4_qir_live_variables.c */
365 BITSET_WORD *def;
366 BITSET_WORD *use;
367 BITSET_WORD *live_in;
368 BITSET_WORD *live_out;
369 int start_ip, end_ip;
370 /** @} */
371 };
372
373 struct vc4_compile {
374 struct vc4_context *vc4;
375 nir_shader *s;
376 nir_function_impl *impl;
377 struct exec_list *cf_node_list;
378
379 /**
380 * Mapping from nir_register * or nir_ssa_def * to array of struct
381 * qreg for the values.
382 */
383 struct hash_table *def_ht;
384
385 /* For each temp, the instruction generating its value. */
386 struct qinst **defs;
387 uint32_t defs_array_size;
388
389 /**
390 * Inputs to the shader, arranged by TGSI declaration order.
391 *
392 * Not all fragment shader QFILE_VARY reads are present in this array.
393 */
394 struct qreg *inputs;
395 struct qreg *outputs;
396 bool msaa_per_sample_output;
397 struct qreg color_reads[VC4_MAX_SAMPLES];
398 struct qreg sample_colors[VC4_MAX_SAMPLES];
399 uint32_t inputs_array_size;
400 uint32_t outputs_array_size;
401 uint32_t uniforms_array_size;
402
403 struct vc4_compiler_ubo_range *ubo_ranges;
404 uint32_t ubo_ranges_array_size;
405 /** Number of uniform areas declared in ubo_ranges. */
406 uint32_t num_uniform_ranges;
407 /** Number of uniform areas used for indirect addressed loads. */
408 uint32_t num_ubo_ranges;
409 uint32_t next_ubo_dst_offset;
410
411 struct qreg line_x, point_x, point_y;
412 struct qreg discard;
413 struct qreg payload_FRAG_Z;
414 struct qreg payload_FRAG_W;
415
416 uint8_t vattr_sizes[8];
417
418 /**
419 * Array of the VARYING_SLOT_* of all FS QFILE_VARY reads.
420 *
421 * This includes those that aren't part of the VPM varyings, like
422 * point/line coordinates.
423 */
424 struct vc4_varying_slot *input_slots;
425 uint32_t num_input_slots;
426 uint32_t input_slots_array_size;
427
428 /**
429 * An entry per outputs[] in the VS indicating what the VARYING_SLOT_*
430 * of the output is. Used to emit from the VS in the order that the
431 * FS needs.
432 */
433 struct vc4_varying_slot *output_slots;
434
435 struct pipe_shader_state *shader_state;
436 struct vc4_key *key;
437 struct vc4_fs_key *fs_key;
438 struct vc4_vs_key *vs_key;
439
440 /* Live ranges of temps. */
441 int *temp_start, *temp_end;
442
443 uint32_t *uniform_data;
444 enum quniform_contents *uniform_contents;
445 uint32_t uniform_array_size;
446 uint32_t num_uniforms;
447 uint32_t num_outputs;
448 uint32_t num_texture_samples;
449 uint32_t output_position_index;
450 uint32_t output_color_index;
451 uint32_t output_point_size_index;
452 uint32_t output_sample_mask_index;
453
454 struct qreg undef;
455 enum qstage stage;
456 uint32_t num_temps;
457
458 struct list_head blocks;
459 int next_block_index;
460 struct qblock *cur_block;
461
462 struct list_head qpu_inst_list;
463 uint64_t *qpu_insts;
464 uint32_t qpu_inst_count;
465 uint32_t qpu_inst_size;
466 uint32_t num_inputs;
467
468 uint32_t program_id;
469 uint32_t variant_id;
470 };
471
472 /* Special nir_load_input intrinsic index for loading the current TLB
473 * destination color.
474 */
475 #define VC4_NIR_TLB_COLOR_READ_INPUT 2000000000
476
477 #define VC4_NIR_MS_MASK_OUTPUT 2000000000
478
479 /* Special offset for nir_load_uniform values to get a QUNIFORM_*
480 * state-dependent value.
481 */
482 #define VC4_NIR_STATE_UNIFORM_OFFSET 1000000000
483
484 struct vc4_compile *qir_compile_init(void);
485 void qir_compile_destroy(struct vc4_compile *c);
486 struct qblock *qir_new_block(struct vc4_compile *c);
487 void qir_set_emit_block(struct vc4_compile *c, struct qblock *block);
488 void qir_link_blocks(struct qblock *predecessor, struct qblock *successor);
489 struct qblock *qir_entry_block(struct vc4_compile *c);
490 struct qblock *qir_exit_block(struct vc4_compile *c);
491 struct qinst *qir_inst(enum qop op, struct qreg dst,
492 struct qreg src0, struct qreg src1);
493 struct qinst *qir_inst4(enum qop op, struct qreg dst,
494 struct qreg a,
495 struct qreg b,
496 struct qreg c,
497 struct qreg d);
498 void qir_remove_instruction(struct vc4_compile *c, struct qinst *qinst);
499 struct qreg qir_uniform(struct vc4_compile *c,
500 enum quniform_contents contents,
501 uint32_t data);
502 void qir_schedule_instructions(struct vc4_compile *c);
503 void qir_reorder_uniforms(struct vc4_compile *c);
504
505 struct qreg qir_emit_def(struct vc4_compile *c, struct qinst *inst);
506 struct qinst *qir_emit_nondef(struct vc4_compile *c, struct qinst *inst);
507
508 struct qreg qir_get_temp(struct vc4_compile *c);
509 void qir_calculate_live_intervals(struct vc4_compile *c);
510 int qir_get_op_nsrc(enum qop qop);
511 bool qir_reg_equals(struct qreg a, struct qreg b);
512 bool qir_has_side_effects(struct vc4_compile *c, struct qinst *inst);
513 bool qir_has_side_effect_reads(struct vc4_compile *c, struct qinst *inst);
514 bool qir_is_mul(struct qinst *inst);
515 bool qir_is_raw_mov(struct qinst *inst);
516 bool qir_is_tex(struct qinst *inst);
517 bool qir_is_float_input(struct qinst *inst);
518 bool qir_depends_on_flags(struct qinst *inst);
519 bool qir_writes_r4(struct qinst *inst);
520 struct qreg qir_follow_movs(struct vc4_compile *c, struct qreg reg);
521 uint8_t qir_channels_written(struct qinst *inst);
522
523 void qir_dump(struct vc4_compile *c);
524 void qir_dump_inst(struct vc4_compile *c, struct qinst *inst);
525 const char *qir_get_stage_name(enum qstage stage);
526
527 void qir_validate(struct vc4_compile *c);
528
529 void qir_optimize(struct vc4_compile *c);
530 bool qir_opt_algebraic(struct vc4_compile *c);
531 bool qir_opt_constant_folding(struct vc4_compile *c);
532 bool qir_opt_copy_propagation(struct vc4_compile *c);
533 bool qir_opt_dead_code(struct vc4_compile *c);
534 bool qir_opt_peephole_sf(struct vc4_compile *c);
535 bool qir_opt_small_immediates(struct vc4_compile *c);
536 bool qir_opt_vpm(struct vc4_compile *c);
537 void vc4_nir_lower_blend(nir_shader *s, struct vc4_compile *c);
538 void vc4_nir_lower_io(nir_shader *s, struct vc4_compile *c);
539 nir_ssa_def *vc4_nir_get_state_uniform(struct nir_builder *b,
540 enum quniform_contents contents);
541 nir_ssa_def *vc4_nir_get_swizzled_channel(struct nir_builder *b,
542 nir_ssa_def **srcs, int swiz);
543 void vc4_nir_lower_txf_ms(nir_shader *s, struct vc4_compile *c);
544 void qir_lower_uniforms(struct vc4_compile *c);
545
546 uint32_t qpu_schedule_instructions(struct vc4_compile *c);
547
548 void qir_SF(struct vc4_compile *c, struct qreg src);
549
550 static inline struct qreg
551 qir_uniform_ui(struct vc4_compile *c, uint32_t ui)
552 {
553 return qir_uniform(c, QUNIFORM_CONSTANT, ui);
554 }
555
556 static inline struct qreg
557 qir_uniform_f(struct vc4_compile *c, float f)
558 {
559 return qir_uniform(c, QUNIFORM_CONSTANT, fui(f));
560 }
561
562 #define QIR_ALU0(name) \
563 static inline struct qreg \
564 qir_##name(struct vc4_compile *c) \
565 { \
566 return qir_emit_def(c, qir_inst(QOP_##name, c->undef, \
567 c->undef, c->undef)); \
568 } \
569 static inline struct qinst * \
570 qir_##name##_dest(struct vc4_compile *c, struct qreg dest) \
571 { \
572 return qir_emit_nondef(c, qir_inst(QOP_##name, dest, \
573 c->undef, c->undef)); \
574 }
575
576 #define QIR_ALU1(name) \
577 static inline struct qreg \
578 qir_##name(struct vc4_compile *c, struct qreg a) \
579 { \
580 return qir_emit_def(c, qir_inst(QOP_##name, c->undef, \
581 a, c->undef)); \
582 } \
583 static inline struct qinst * \
584 qir_##name##_dest(struct vc4_compile *c, struct qreg dest, \
585 struct qreg a) \
586 { \
587 return qir_emit_nondef(c, qir_inst(QOP_##name, dest, a, \
588 c->undef)); \
589 }
590
591 #define QIR_ALU2(name) \
592 static inline struct qreg \
593 qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b) \
594 { \
595 return qir_emit_def(c, qir_inst(QOP_##name, c->undef, a, b)); \
596 } \
597 static inline struct qinst * \
598 qir_##name##_dest(struct vc4_compile *c, struct qreg dest, \
599 struct qreg a, struct qreg b) \
600 { \
601 return qir_emit_nondef(c, qir_inst(QOP_##name, dest, a, b)); \
602 }
603
604 #define QIR_NODST_1(name) \
605 static inline struct qinst * \
606 qir_##name(struct vc4_compile *c, struct qreg a) \
607 { \
608 return qir_emit_nondef(c, qir_inst(QOP_##name, c->undef, \
609 a, c->undef)); \
610 }
611
612 #define QIR_NODST_2(name) \
613 static inline struct qinst * \
614 qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b) \
615 { \
616 return qir_emit_nondef(c, qir_inst(QOP_##name, c->undef, \
617 a, b)); \
618 }
619
620 #define QIR_PAYLOAD(name) \
621 static inline struct qreg \
622 qir_##name(struct vc4_compile *c) \
623 { \
624 struct qreg *payload = &c->payload_##name; \
625 if (payload->file != QFILE_NULL) \
626 return *payload; \
627 *payload = qir_get_temp(c); \
628 struct qinst *inst = qir_inst(QOP_##name, *payload, \
629 c->undef, c->undef); \
630 struct qblock *entry = qir_entry_block(c); \
631 list_add(&inst->link, &entry->instructions); \
632 c->defs[payload->index] = inst; \
633 return *payload; \
634 }
635
636 QIR_ALU1(MOV)
637 QIR_ALU1(FMOV)
638 QIR_ALU1(MMOV)
639 QIR_ALU2(FADD)
640 QIR_ALU2(FSUB)
641 QIR_ALU2(FMUL)
642 QIR_ALU2(V8MULD)
643 QIR_ALU2(V8MIN)
644 QIR_ALU2(V8MAX)
645 QIR_ALU2(V8ADDS)
646 QIR_ALU2(V8SUBS)
647 QIR_ALU2(MUL24)
648 QIR_ALU2(FMIN)
649 QIR_ALU2(FMAX)
650 QIR_ALU2(FMINABS)
651 QIR_ALU2(FMAXABS)
652 QIR_ALU1(FTOI)
653 QIR_ALU1(ITOF)
654
655 QIR_ALU2(ADD)
656 QIR_ALU2(SUB)
657 QIR_ALU2(SHL)
658 QIR_ALU2(SHR)
659 QIR_ALU2(ASR)
660 QIR_ALU2(MIN)
661 QIR_ALU2(MAX)
662 QIR_ALU2(AND)
663 QIR_ALU2(OR)
664 QIR_ALU2(XOR)
665 QIR_ALU1(NOT)
666
667 QIR_ALU1(RCP)
668 QIR_ALU1(RSQ)
669 QIR_ALU1(EXP2)
670 QIR_ALU1(LOG2)
671 QIR_ALU1(VARY_ADD_C)
672 QIR_NODST_2(TEX_S)
673 QIR_NODST_2(TEX_T)
674 QIR_NODST_2(TEX_R)
675 QIR_NODST_2(TEX_B)
676 QIR_NODST_2(TEX_DIRECT)
677 QIR_PAYLOAD(FRAG_Z)
678 QIR_PAYLOAD(FRAG_W)
679 QIR_ALU0(TEX_RESULT)
680 QIR_ALU0(TLB_COLOR_READ)
681 QIR_NODST_1(MS_MASK)
682
683 static inline struct qreg
684 qir_SEL(struct vc4_compile *c, uint8_t cond, struct qreg src0, struct qreg src1)
685 {
686 struct qreg t = qir_get_temp(c);
687 struct qinst *a = qir_MOV_dest(c, t, src0);
688 struct qinst *b = qir_MOV_dest(c, t, src1);
689 a->cond = cond;
690 b->cond = qpu_cond_complement(cond);
691 return t;
692 }
693
694 static inline struct qreg
695 qir_UNPACK_8_F(struct vc4_compile *c, struct qreg src, int i)
696 {
697 struct qreg t = qir_FMOV(c, src);
698 c->defs[t.index]->src[0].pack = QPU_UNPACK_8A + i;
699 return t;
700 }
701
702 static inline struct qreg
703 qir_UNPACK_8_I(struct vc4_compile *c, struct qreg src, int i)
704 {
705 struct qreg t = qir_MOV(c, src);
706 c->defs[t.index]->src[0].pack = QPU_UNPACK_8A + i;
707 return t;
708 }
709
710 static inline struct qreg
711 qir_UNPACK_16_F(struct vc4_compile *c, struct qreg src, int i)
712 {
713 struct qreg t = qir_FMOV(c, src);
714 c->defs[t.index]->src[0].pack = QPU_UNPACK_16A + i;
715 return t;
716 }
717
718 static inline struct qreg
719 qir_UNPACK_16_I(struct vc4_compile *c, struct qreg src, int i)
720 {
721 struct qreg t = qir_MOV(c, src);
722 c->defs[t.index]->src[0].pack = QPU_UNPACK_16A + i;
723 return t;
724 }
725
726 static inline void
727 qir_PACK_8_F(struct vc4_compile *c, struct qreg dest, struct qreg val, int chan)
728 {
729 assert(!dest.pack);
730 dest.pack = QPU_PACK_MUL_8A + chan;
731 qir_emit_nondef(c, qir_inst(QOP_MMOV, dest, val, c->undef));
732 }
733
734 static inline struct qreg
735 qir_PACK_8888_F(struct vc4_compile *c, struct qreg val)
736 {
737 struct qreg dest = qir_MMOV(c, val);
738 c->defs[dest.index]->dst.pack = QPU_PACK_MUL_8888;
739 return dest;
740 }
741
742 static inline struct qreg
743 qir_POW(struct vc4_compile *c, struct qreg x, struct qreg y)
744 {
745 return qir_EXP2(c, qir_FMUL(c,
746 y,
747 qir_LOG2(c, x)));
748 }
749
750 static inline void
751 qir_VPM_WRITE(struct vc4_compile *c, struct qreg val)
752 {
753 qir_MOV_dest(c, qir_reg(QFILE_VPM, 0), val);
754 }
755
756 static inline struct qreg
757 qir_LOAD_IMM(struct vc4_compile *c, uint32_t val)
758 {
759 return qir_emit_def(c, qir_inst(QOP_LOAD_IMM, c->undef,
760 qir_reg(QFILE_LOAD_IMM, val), c->undef));
761 }
762
763 static inline struct qinst *
764 qir_BRANCH(struct vc4_compile *c, uint8_t cond)
765 {
766 struct qinst *inst = qir_inst(QOP_BRANCH, c->undef, c->undef, c->undef);
767 inst->cond = cond;
768 qir_emit_nondef(c, inst);
769 return inst;
770 }
771
772 #define qir_for_each_block(block, c) \
773 list_for_each_entry(struct qblock, block, &c->blocks, link)
774
775 #define qir_for_each_block_rev(block, c) \
776 list_for_each_entry_rev(struct qblock, block, &c->blocks, link)
777
778 /* Loop over the non-NULL members of the successors array. */
779 #define qir_for_each_successor(succ, block) \
780 for (struct qblock *succ = block->successors[0]; \
781 succ != NULL; \
782 succ = (succ == block->successors[1] ? NULL : \
783 block->successors[1]))
784
785 #define qir_for_each_inst(inst, block) \
786 list_for_each_entry(struct qinst, inst, &block->instructions, link)
787
788 #define qir_for_each_inst_rev(inst, block) \
789 list_for_each_entry_rev(struct qinst, inst, &block->instructions, link)
790
791 #define qir_for_each_inst_safe(inst, block) \
792 list_for_each_entry_safe(struct qinst, inst, &block->instructions, link)
793
794 #define qir_for_each_inst_inorder(inst, c) \
795 qir_for_each_block(_block, c) \
796 qir_for_each_inst(inst, _block)
797
798 #endif /* VC4_QIR_H */