vc4_qir.h revision a1f698881e13a4993e958815b79f8150d48e2739
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 "kernel/vc4_packet.h"
42#include "pipe/p_state.h"
43
44struct nir_builder;
45
46enum qfile {
47        QFILE_NULL,
48        QFILE_TEMP,
49        QFILE_VARY,
50        QFILE_UNIF,
51        QFILE_VPM,
52        QFILE_TLB_COLOR_WRITE,
53        QFILE_TLB_COLOR_WRITE_MS,
54        QFILE_TLB_Z_WRITE,
55        QFILE_TLB_STENCIL_SETUP,
56
57        /* Payload registers that aren't in the physical register file, so we
58         * can just use the corresponding qpu_reg at qpu_emit time.
59         */
60        QFILE_FRAG_X,
61        QFILE_FRAG_Y,
62        QFILE_FRAG_REV_FLAG,
63
64        /**
65         * Stores an immediate value in the index field that will be used
66         * directly by qpu_load_imm().
67         */
68        QFILE_LOAD_IMM,
69
70        /**
71         * Stores an immediate value in the index field that can be turned
72         * into a small immediate field by qpu_encode_small_immediate().
73         */
74        QFILE_SMALL_IMM,
75};
76
77struct qreg {
78        enum qfile file;
79        uint32_t index;
80        int pack;
81};
82
83static inline struct qreg qir_reg(enum qfile file, uint32_t index)
84{
85        return (struct qreg){file, index};
86}
87
88enum qop {
89        QOP_UNDEF,
90        QOP_MOV,
91        QOP_FMOV,
92        QOP_MMOV,
93        QOP_FADD,
94        QOP_FSUB,
95        QOP_FMUL,
96        QOP_V8MULD,
97        QOP_V8MIN,
98        QOP_V8MAX,
99        QOP_V8ADDS,
100        QOP_V8SUBS,
101        QOP_MUL24,
102        QOP_FMIN,
103        QOP_FMAX,
104        QOP_FMINABS,
105        QOP_FMAXABS,
106        QOP_ADD,
107        QOP_SUB,
108        QOP_SHL,
109        QOP_SHR,
110        QOP_ASR,
111        QOP_MIN,
112        QOP_MAX,
113        QOP_AND,
114        QOP_OR,
115        QOP_XOR,
116        QOP_NOT,
117
118        QOP_FTOI,
119        QOP_ITOF,
120        QOP_RCP,
121        QOP_RSQ,
122        QOP_EXP2,
123        QOP_LOG2,
124        QOP_VW_SETUP,
125        QOP_VR_SETUP,
126        QOP_TLB_COLOR_READ,
127        QOP_MS_MASK,
128        QOP_VARY_ADD_C,
129
130        QOP_FRAG_Z,
131        QOP_FRAG_W,
132
133        /** Texture x coordinate parameter write */
134        QOP_TEX_S,
135        /** Texture y coordinate parameter write */
136        QOP_TEX_T,
137        /** Texture border color parameter or cube map z coordinate write */
138        QOP_TEX_R,
139        /** Texture LOD bias parameter write */
140        QOP_TEX_B,
141
142        /**
143         * Texture-unit 4-byte read with address provided direct in S
144         * cooordinate.
145         *
146         * The first operand is the offset from the start of the UBO, and the
147         * second is the uniform that has the UBO's base pointer.
148         */
149        QOP_TEX_DIRECT,
150
151        /**
152         * Signal of texture read being necessary and then reading r4 into
153         * the destination
154         */
155        QOP_TEX_RESULT,
156
157        QOP_LOAD_IMM,
158};
159
160struct queued_qpu_inst {
161        struct list_head link;
162        uint64_t inst;
163};
164
165struct qinst {
166        struct list_head link;
167
168        enum qop op;
169        struct qreg dst;
170        struct qreg *src;
171        bool sf;
172        uint8_t cond;
173};
174
175enum qstage {
176        /**
177         * Coordinate shader, runs during binning, before the VS, and just
178         * outputs position.
179         */
180        QSTAGE_COORD,
181        QSTAGE_VERT,
182        QSTAGE_FRAG,
183};
184
185enum quniform_contents {
186        /**
187         * Indicates that a constant 32-bit value is copied from the program's
188         * uniform contents.
189         */
190        QUNIFORM_CONSTANT,
191        /**
192         * Indicates that the program's uniform contents are used as an index
193         * into the GL uniform storage.
194         */
195        QUNIFORM_UNIFORM,
196
197        /** @{
198         * Scaling factors from clip coordinates to relative to the viewport
199         * center.
200         *
201         * This is used by the coordinate and vertex shaders to produce the
202         * 32-bit entry consisting of 2 16-bit fields with 12.4 signed fixed
203         * point offsets from the viewport ccenter.
204         */
205        QUNIFORM_VIEWPORT_X_SCALE,
206        QUNIFORM_VIEWPORT_Y_SCALE,
207        /** @} */
208
209        QUNIFORM_VIEWPORT_Z_OFFSET,
210        QUNIFORM_VIEWPORT_Z_SCALE,
211
212        QUNIFORM_USER_CLIP_PLANE,
213
214        /**
215         * A reference to a texture config parameter 0 uniform.
216         *
217         * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
218         * defines texture type, miplevels, and such.  It will be found as a
219         * parameter to the first QOP_TEX_[STRB] instruction in a sequence.
220         */
221        QUNIFORM_TEXTURE_CONFIG_P0,
222
223        /**
224         * A reference to a texture config parameter 1 uniform.
225         *
226         * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
227         * defines texture width, height, filters, and wrap modes.  It will be
228         * found as a parameter to the second QOP_TEX_[STRB] instruction in a
229         * sequence.
230         */
231        QUNIFORM_TEXTURE_CONFIG_P1,
232
233        /** A reference to a texture config parameter 2 cubemap stride uniform */
234        QUNIFORM_TEXTURE_CONFIG_P2,
235
236        QUNIFORM_TEXTURE_MSAA_ADDR,
237
238        QUNIFORM_UBO_ADDR,
239
240        QUNIFORM_TEXRECT_SCALE_X,
241        QUNIFORM_TEXRECT_SCALE_Y,
242
243        QUNIFORM_TEXTURE_BORDER_COLOR,
244
245        QUNIFORM_BLEND_CONST_COLOR_X,
246        QUNIFORM_BLEND_CONST_COLOR_Y,
247        QUNIFORM_BLEND_CONST_COLOR_Z,
248        QUNIFORM_BLEND_CONST_COLOR_W,
249        QUNIFORM_BLEND_CONST_COLOR_RGBA,
250        QUNIFORM_BLEND_CONST_COLOR_AAAA,
251
252        QUNIFORM_STENCIL,
253
254        QUNIFORM_ALPHA_REF,
255        QUNIFORM_SAMPLE_MASK,
256};
257
258struct vc4_varying_slot {
259        uint8_t slot;
260        uint8_t swizzle;
261};
262
263struct vc4_compiler_ubo_range {
264        /**
265         * offset in bytes from the start of the ubo where this range is
266         * uploaded.
267         *
268         * Only set once used is set.
269         */
270        uint32_t dst_offset;
271
272        /**
273         * offset in bytes from the start of the gallium uniforms where the
274         * data comes from.
275         */
276        uint32_t src_offset;
277
278        /** size in bytes of this ubo range */
279        uint32_t size;
280
281        /**
282         * Set if this range is used by the shader for indirect uniforms
283         * access.
284         */
285        bool used;
286};
287
288struct vc4_key {
289        struct vc4_uncompiled_shader *shader_state;
290        struct {
291                enum pipe_format format;
292                uint8_t swizzle[4];
293                union {
294                        struct {
295                                unsigned compare_mode:1;
296                                unsigned compare_func:3;
297                                unsigned wrap_s:3;
298                                unsigned wrap_t:3;
299                        };
300                        struct {
301                                uint16_t msaa_width, msaa_height;
302                        };
303                };
304        } tex[VC4_MAX_TEXTURE_SAMPLERS];
305        uint8_t ucp_enables;
306};
307
308struct vc4_fs_key {
309        struct vc4_key base;
310        enum pipe_format color_format;
311        bool depth_enabled;
312        bool stencil_enabled;
313        bool stencil_twoside;
314        bool stencil_full_writemasks;
315        bool is_points;
316        bool is_lines;
317        bool alpha_test;
318        bool point_coord_upper_left;
319        bool light_twoside;
320        bool msaa;
321        bool sample_coverage;
322        bool sample_alpha_to_coverage;
323        bool sample_alpha_to_one;
324        uint8_t alpha_test_func;
325        uint8_t logicop_func;
326        uint32_t point_sprite_mask;
327
328        struct pipe_rt_blend_state blend;
329};
330
331struct vc4_vs_key {
332        struct vc4_key base;
333
334        /**
335         * This is a proxy for the array of FS input semantics, which is
336         * larger than we would want to put in the key.
337         */
338        uint64_t compiled_fs_id;
339
340        enum pipe_format attr_formats[8];
341        bool is_coord;
342        bool per_vertex_point_size;
343};
344
345struct vc4_compile {
346        struct vc4_context *vc4;
347        nir_shader *s;
348        nir_function_impl *impl;
349        struct exec_list *cf_node_list;
350
351        /**
352         * Mapping from nir_register * or nir_ssa_def * to array of struct
353         * qreg for the values.
354         */
355        struct hash_table *def_ht;
356
357        /* For each temp, the instruction generating its value. */
358        struct qinst **defs;
359        uint32_t defs_array_size;
360
361        /**
362         * Inputs to the shader, arranged by TGSI declaration order.
363         *
364         * Not all fragment shader QFILE_VARY reads are present in this array.
365         */
366        struct qreg *inputs;
367        struct qreg *outputs;
368        bool msaa_per_sample_output;
369        struct qreg color_reads[VC4_MAX_SAMPLES];
370        struct qreg sample_colors[VC4_MAX_SAMPLES];
371        uint32_t inputs_array_size;
372        uint32_t outputs_array_size;
373        uint32_t uniforms_array_size;
374
375        struct vc4_compiler_ubo_range *ubo_ranges;
376        uint32_t ubo_ranges_array_size;
377        /** Number of uniform areas declared in ubo_ranges. */
378        uint32_t num_uniform_ranges;
379        /** Number of uniform areas used for indirect addressed loads. */
380        uint32_t num_ubo_ranges;
381        uint32_t next_ubo_dst_offset;
382
383        struct qreg line_x, point_x, point_y;
384        struct qreg discard;
385        struct qreg payload_FRAG_Z;
386        struct qreg payload_FRAG_W;
387
388        uint8_t vattr_sizes[8];
389
390        /**
391         * Array of the VARYING_SLOT_* of all FS QFILE_VARY reads.
392         *
393         * This includes those that aren't part of the VPM varyings, like
394         * point/line coordinates.
395         */
396        struct vc4_varying_slot *input_slots;
397        uint32_t num_input_slots;
398        uint32_t input_slots_array_size;
399
400        /**
401         * An entry per outputs[] in the VS indicating what the VARYING_SLOT_*
402         * of the output is.  Used to emit from the VS in the order that the
403         * FS needs.
404         */
405        struct vc4_varying_slot *output_slots;
406
407        struct pipe_shader_state *shader_state;
408        struct vc4_key *key;
409        struct vc4_fs_key *fs_key;
410        struct vc4_vs_key *vs_key;
411
412        uint32_t *uniform_data;
413        enum quniform_contents *uniform_contents;
414        uint32_t uniform_array_size;
415        uint32_t num_uniforms;
416        uint32_t num_outputs;
417        uint32_t num_texture_samples;
418        uint32_t output_position_index;
419        uint32_t output_color_index;
420        uint32_t output_point_size_index;
421        uint32_t output_sample_mask_index;
422
423        struct qreg undef;
424        enum qstage stage;
425        uint32_t num_temps;
426        struct list_head instructions;
427
428        struct list_head qpu_inst_list;
429        uint64_t *qpu_insts;
430        uint32_t qpu_inst_count;
431        uint32_t qpu_inst_size;
432        uint32_t num_inputs;
433
434        uint32_t program_id;
435        uint32_t variant_id;
436};
437
438/* Special nir_load_input intrinsic index for loading the current TLB
439 * destination color.
440 */
441#define VC4_NIR_TLB_COLOR_READ_INPUT		2000000000
442
443#define VC4_NIR_MS_MASK_OUTPUT			2000000000
444
445/* Special offset for nir_load_uniform values to get a QUNIFORM_*
446 * state-dependent value.
447 */
448#define VC4_NIR_STATE_UNIFORM_OFFSET		1000000000
449
450struct vc4_compile *qir_compile_init(void);
451void qir_compile_destroy(struct vc4_compile *c);
452struct qinst *qir_inst(enum qop op, struct qreg dst,
453                       struct qreg src0, struct qreg src1);
454struct qinst *qir_inst4(enum qop op, struct qreg dst,
455                        struct qreg a,
456                        struct qreg b,
457                        struct qreg c,
458                        struct qreg d);
459void qir_remove_instruction(struct vc4_compile *c, struct qinst *qinst);
460struct qreg qir_uniform(struct vc4_compile *c,
461                        enum quniform_contents contents,
462                        uint32_t data);
463void qir_schedule_instructions(struct vc4_compile *c);
464void qir_reorder_uniforms(struct vc4_compile *c);
465
466void qir_emit(struct vc4_compile *c, struct qinst *inst);
467static inline struct qinst *
468qir_emit_nodef(struct vc4_compile *c, struct qinst *inst)
469{
470        list_addtail(&inst->link, &c->instructions);
471        return inst;
472}
473
474struct qreg qir_get_temp(struct vc4_compile *c);
475int qir_get_op_nsrc(enum qop qop);
476bool qir_reg_equals(struct qreg a, struct qreg b);
477bool qir_has_side_effects(struct vc4_compile *c, struct qinst *inst);
478bool qir_has_side_effect_reads(struct vc4_compile *c, struct qinst *inst);
479bool qir_is_mul(struct qinst *inst);
480bool qir_is_raw_mov(struct qinst *inst);
481bool qir_is_tex(struct qinst *inst);
482bool qir_is_float_input(struct qinst *inst);
483bool qir_depends_on_flags(struct qinst *inst);
484bool qir_writes_r4(struct qinst *inst);
485struct qreg qir_follow_movs(struct vc4_compile *c, struct qreg reg);
486
487void qir_dump(struct vc4_compile *c);
488void qir_dump_inst(struct vc4_compile *c, struct qinst *inst);
489const char *qir_get_stage_name(enum qstage stage);
490
491void qir_validate(struct vc4_compile *c);
492
493void qir_optimize(struct vc4_compile *c);
494bool qir_opt_algebraic(struct vc4_compile *c);
495bool qir_opt_constant_folding(struct vc4_compile *c);
496bool qir_opt_copy_propagation(struct vc4_compile *c);
497bool qir_opt_dead_code(struct vc4_compile *c);
498bool qir_opt_small_immediates(struct vc4_compile *c);
499bool qir_opt_vpm(struct vc4_compile *c);
500void vc4_nir_lower_blend(nir_shader *s, struct vc4_compile *c);
501void vc4_nir_lower_io(nir_shader *s, struct vc4_compile *c);
502nir_ssa_def *vc4_nir_get_state_uniform(struct nir_builder *b,
503                                       enum quniform_contents contents);
504nir_ssa_def *vc4_nir_get_swizzled_channel(struct nir_builder *b,
505                                          nir_ssa_def **srcs, int swiz);
506void vc4_nir_lower_txf_ms(nir_shader *s, struct vc4_compile *c);
507void qir_lower_uniforms(struct vc4_compile *c);
508
509uint32_t qpu_schedule_instructions(struct vc4_compile *c);
510
511void qir_SF(struct vc4_compile *c, struct qreg src);
512
513static inline struct qreg
514qir_uniform_ui(struct vc4_compile *c, uint32_t ui)
515{
516        return qir_uniform(c, QUNIFORM_CONSTANT, ui);
517}
518
519static inline struct qreg
520qir_uniform_f(struct vc4_compile *c, float f)
521{
522        return qir_uniform(c, QUNIFORM_CONSTANT, fui(f));
523}
524
525#define QIR_ALU0(name)                                                   \
526static inline struct qreg                                                \
527qir_##name(struct vc4_compile *c)                                        \
528{                                                                        \
529        struct qreg t = qir_get_temp(c);                                 \
530        qir_emit(c, qir_inst(QOP_##name, t, c->undef, c->undef));        \
531        return t;                                                        \
532}
533
534#define QIR_ALU1(name)                                                   \
535static inline struct qreg                                                \
536qir_##name(struct vc4_compile *c, struct qreg a)                         \
537{                                                                        \
538        struct qreg t = qir_get_temp(c);                                 \
539        qir_emit(c, qir_inst(QOP_##name, t, a, c->undef));               \
540        return t;                                                        \
541}                                                                        \
542static inline struct qinst *                                             \
543qir_##name##_dest(struct vc4_compile *c, struct qreg dest,               \
544                  struct qreg a)                                         \
545{                                                                        \
546        if (dest.file == QFILE_TEMP)                                     \
547                c->defs[dest.index] = NULL;                              \
548        return qir_emit_nodef(c, qir_inst(QOP_##name, dest, a,           \
549                                          c->undef));                    \
550}
551
552#define QIR_ALU2(name)                                                   \
553static inline struct qreg                                                \
554qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b)          \
555{                                                                        \
556        struct qreg t = qir_get_temp(c);                                 \
557        qir_emit(c, qir_inst(QOP_##name, t, a, b));                      \
558        return t;                                                        \
559}                                                                        \
560static inline void                                                       \
561qir_##name##_dest(struct vc4_compile *c, struct qreg dest,               \
562                  struct qreg a, struct qreg b)                          \
563{                                                                        \
564        qir_emit_nodef(c, qir_inst(QOP_##name, dest, a, b));             \
565}
566
567#define QIR_NODST_1(name)                                               \
568static inline struct qinst *                                            \
569qir_##name(struct vc4_compile *c, struct qreg a)                        \
570{                                                                       \
571        struct qinst *inst = qir_inst(QOP_##name, c->undef,             \
572                                      a, c->undef);                     \
573        qir_emit(c, inst);                                              \
574        return inst;                                                    \
575}
576
577#define QIR_NODST_2(name)                                               \
578static inline struct qinst *                                            \
579qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b)         \
580{                                                                       \
581        struct qinst *inst = qir_inst(QOP_##name, c->undef,             \
582                                      a, b);                            \
583        qir_emit(c, inst);                                              \
584        return inst;                                                    \
585}
586
587#define QIR_PACK(name)                                                   \
588static inline struct qreg                                                \
589qir_##name(struct vc4_compile *c, struct qreg dest, struct qreg a)       \
590{                                                                        \
591        qir_emit_nodef(c, qir_inst(QOP_##name, dest, a, c->undef));      \
592        return dest;                                                     \
593}
594
595#define QIR_PAYLOAD(name)                                                \
596static inline struct qreg                                                \
597qir_##name(struct vc4_compile *c)                                        \
598{                                                                        \
599        struct qreg *payload = &c->payload_##name;                       \
600        if (payload->file != QFILE_NULL)                                 \
601                return *payload;                                         \
602        *payload = qir_get_temp(c);                                      \
603        struct qinst *inst = qir_inst(QOP_##name, *payload,              \
604                                      c->undef, c->undef);               \
605        list_add(&inst->link, &c->instructions);                         \
606        c->defs[payload->index] = inst;                                  \
607        return *payload;                                                 \
608}
609
610QIR_ALU1(MOV)
611QIR_ALU1(FMOV)
612QIR_ALU1(MMOV)
613QIR_ALU2(FADD)
614QIR_ALU2(FSUB)
615QIR_ALU2(FMUL)
616QIR_ALU2(V8MULD)
617QIR_ALU2(V8MIN)
618QIR_ALU2(V8MAX)
619QIR_ALU2(V8ADDS)
620QIR_ALU2(V8SUBS)
621QIR_ALU2(MUL24)
622QIR_ALU2(FMIN)
623QIR_ALU2(FMAX)
624QIR_ALU2(FMINABS)
625QIR_ALU2(FMAXABS)
626QIR_ALU1(FTOI)
627QIR_ALU1(ITOF)
628
629QIR_ALU2(ADD)
630QIR_ALU2(SUB)
631QIR_ALU2(SHL)
632QIR_ALU2(SHR)
633QIR_ALU2(ASR)
634QIR_ALU2(MIN)
635QIR_ALU2(MAX)
636QIR_ALU2(AND)
637QIR_ALU2(OR)
638QIR_ALU2(XOR)
639QIR_ALU1(NOT)
640
641QIR_ALU1(RCP)
642QIR_ALU1(RSQ)
643QIR_ALU1(EXP2)
644QIR_ALU1(LOG2)
645QIR_ALU1(VARY_ADD_C)
646QIR_NODST_2(TEX_S)
647QIR_NODST_2(TEX_T)
648QIR_NODST_2(TEX_R)
649QIR_NODST_2(TEX_B)
650QIR_NODST_2(TEX_DIRECT)
651QIR_PAYLOAD(FRAG_Z)
652QIR_PAYLOAD(FRAG_W)
653QIR_ALU0(TEX_RESULT)
654QIR_ALU0(TLB_COLOR_READ)
655QIR_NODST_1(MS_MASK)
656
657static inline struct qreg
658qir_SEL(struct vc4_compile *c, uint8_t cond, struct qreg src0, struct qreg src1)
659{
660        struct qreg t = qir_get_temp(c);
661        struct qinst *a = qir_MOV_dest(c, t, src0);
662        struct qinst *b = qir_MOV_dest(c, t, src1);
663        a->cond = cond;
664        b->cond = cond ^ 1;
665        return t;
666}
667
668static inline struct qreg
669qir_UNPACK_8_F(struct vc4_compile *c, struct qreg src, int i)
670{
671        struct qreg t = qir_FMOV(c, src);
672        c->defs[t.index]->src[0].pack = QPU_UNPACK_8A + i;
673        return t;
674}
675
676static inline struct qreg
677qir_UNPACK_8_I(struct vc4_compile *c, struct qreg src, int i)
678{
679        struct qreg t = qir_MOV(c, src);
680        c->defs[t.index]->src[0].pack = QPU_UNPACK_8A + i;
681        return t;
682}
683
684static inline struct qreg
685qir_UNPACK_16_F(struct vc4_compile *c, struct qreg src, int i)
686{
687        struct qreg t = qir_FMOV(c, src);
688        c->defs[t.index]->src[0].pack = QPU_UNPACK_16A + i;
689        return t;
690}
691
692static inline struct qreg
693qir_UNPACK_16_I(struct vc4_compile *c, struct qreg src, int i)
694{
695        struct qreg t = qir_MOV(c, src);
696        c->defs[t.index]->src[0].pack = QPU_UNPACK_16A + i;
697        return t;
698}
699
700static inline void
701qir_PACK_8_F(struct vc4_compile *c, struct qreg dest, struct qreg val, int chan)
702{
703        assert(!dest.pack);
704        dest.pack = QPU_PACK_MUL_8A + chan;
705        qir_emit(c, qir_inst(QOP_MMOV, dest, val, c->undef));
706        if (dest.file == QFILE_TEMP)
707                c->defs[dest.index] = NULL;
708}
709
710static inline struct qreg
711qir_PACK_8888_F(struct vc4_compile *c, struct qreg val)
712{
713        struct qreg dest = qir_MMOV(c, val);
714        c->defs[dest.index]->dst.pack = QPU_PACK_MUL_8888;
715        return dest;
716}
717
718static inline struct qreg
719qir_POW(struct vc4_compile *c, struct qreg x, struct qreg y)
720{
721        return qir_EXP2(c, qir_FMUL(c,
722                                    y,
723                                    qir_LOG2(c, x)));
724}
725
726static inline void
727qir_VPM_WRITE(struct vc4_compile *c, struct qreg val)
728{
729        qir_MOV_dest(c, qir_reg(QFILE_VPM, 0), val);
730}
731
732static inline struct qreg
733qir_LOAD_IMM(struct vc4_compile *c, uint32_t val)
734{
735        struct qreg t = qir_get_temp(c);
736        qir_emit(c, qir_inst(QOP_LOAD_IMM, t,
737                             qir_reg(QFILE_LOAD_IMM, val), c->undef));
738        return t;
739}
740
741#endif /* VC4_QIR_H */
742