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 "glsl/nir/nir.h"
  36 #include "util/list.h"
  37 #include "util/u_math.h"
  38
  39 #include "vc4_screen.h"
  40 #include "pipe/p_state.h"
  41
  42 struct nir_builder;
  43
  44 enum qfile {
  45         QFILE_NULL,
  46         QFILE_TEMP,
  47         QFILE_VARY,
  48         QFILE_UNIF,
  49         QFILE_VPM,
  50
  51         /**
  52          * Stores an immediate value in the index field that can be turned
  53          * into a small immediate field by qpu_encode_small_immediate().
  54          */
  55         QFILE_SMALL_IMM,
  56 };
  57
  58 struct qreg {
  59         enum qfile file;
  60         uint32_t index;
  61 };
  62
  63 enum qop {
  64         QOP_UNDEF,
  65         QOP_MOV,
  66         QOP_FADD,
  67         QOP_FSUB,
  68         QOP_FMUL,
  69         QOP_MUL24,
  70         QOP_FMIN,
  71         QOP_FMAX,
  72         QOP_FMINABS,
  73         QOP_FMAXABS,
  74         QOP_ADD,
  75         QOP_SUB,
  76         QOP_SHL,
  77         QOP_SHR,
  78         QOP_ASR,
  79         QOP_MIN,
  80         QOP_MAX,
  81         QOP_AND,
  82         QOP_OR,
  83         QOP_XOR,
  84         QOP_NOT,
  85
  86         /* Note: Orderings of these compares must be the same as in
  87          * qpu_defines.h.  Selects the src[0] if the ns flag bit is set,
  88          * otherwise 0. */
  89         QOP_SEL_X_0_ZS,
  90         QOP_SEL_X_0_ZC,
  91         QOP_SEL_X_0_NS,
  92         QOP_SEL_X_0_NC,
  93         /* Selects the src[0] if the ns flag bit is set, otherwise src[1]. */
  94         QOP_SEL_X_Y_ZS,
  95         QOP_SEL_X_Y_ZC,
  96         QOP_SEL_X_Y_NS,
  97         QOP_SEL_X_Y_NC,
  98
  99         QOP_FTOI,
 100         QOP_ITOF,
 101         QOP_RCP,
 102         QOP_RSQ,
 103         QOP_EXP2,
 104         QOP_LOG2,
 105         QOP_VW_SETUP,
 106         QOP_VR_SETUP,
 107         QOP_PACK_SCALED,
 108         QOP_PACK_8888_F,
 109         QOP_PACK_8A_F,
 110         QOP_PACK_8B_F,
 111         QOP_PACK_8C_F,
 112         QOP_PACK_8D_F,
 113         QOP_TLB_DISCARD_SETUP,
 114         QOP_TLB_STENCIL_SETUP,
 115         QOP_TLB_Z_WRITE,
 116         QOP_TLB_COLOR_WRITE,
 117         QOP_TLB_COLOR_READ,
 118         QOP_VARY_ADD_C,
 119
 120         QOP_FRAG_X,
 121         QOP_FRAG_Y,
 122         QOP_FRAG_Z,
 123         QOP_FRAG_W,
 124         QOP_FRAG_REV_FLAG,
 125
 126         QOP_UNPACK_8A_F,
 127         QOP_UNPACK_8B_F,
 128         QOP_UNPACK_8C_F,
 129         QOP_UNPACK_8D_F,
 130         QOP_UNPACK_16A_F,
 131         QOP_UNPACK_16B_F,
 132
 133         QOP_UNPACK_8A_I,
 134         QOP_UNPACK_8B_I,
 135         QOP_UNPACK_8C_I,
 136         QOP_UNPACK_8D_I,
 137         QOP_UNPACK_16A_I,
 138         QOP_UNPACK_16B_I,
 139
 140         /** Texture x coordinate parameter write */
 141         QOP_TEX_S,
 142         /** Texture y coordinate parameter write */
 143         QOP_TEX_T,
 144         /** Texture border color parameter or cube map z coordinate write */
 145         QOP_TEX_R,
 146         /** Texture LOD bias parameter write */
 147         QOP_TEX_B,
 148
 149         /**
 150          * Texture-unit 4-byte read with address provided direct in S
 151          * cooordinate.
 152          *
 153          * The first operand is the offset from the start of the UBO, and the
 154          * second is the uniform that has the UBO's base pointer.
 155          */
 156         QOP_TEX_DIRECT,
 157
 158         /**
 159          * Signal of texture read being necessary and then reading r4 into
 160          * the destination
 161          */
 162         QOP_TEX_RESULT,
 163 };
 164
 165 struct queued_qpu_inst {
 166         struct list_head link;
 167         uint64_t inst;
 168 };
 169
 170 struct qinst {
 171         struct list_head link;
 172
 173         enum qop op;
 174         struct qreg dst;
 175         struct qreg *src;
 176         bool sf;
 177 };
 178
 179 enum qstage {
 180         /**
 181          * Coordinate shader, runs during binning, before the VS, and just
 182          * outputs position.
 183          */
 184         QSTAGE_COORD,
 185         QSTAGE_VERT,
 186         QSTAGE_FRAG,
 187 };
 188
 189 enum quniform_contents {
 190         /**
 191          * Indicates that a constant 32-bit value is copied from the program's
 192          * uniform contents.
 193          */
 194         QUNIFORM_CONSTANT,
 195         /**
 196          * Indicates that the program's uniform contents are used as an index
 197          * into the GL uniform storage.
 198          */
 199         QUNIFORM_UNIFORM,
 200
 201         /** @{
 202          * Scaling factors from clip coordinates to relative to the viewport
 203          * center.
 204          *
 205          * This is used by the coordinate and vertex shaders to produce the
 206          * 32-bit entry consisting of 2 16-bit fields with 12.4 signed fixed
 207          * point offsets from the viewport ccenter.
 208          */
 209         QUNIFORM_VIEWPORT_X_SCALE,
 210         QUNIFORM_VIEWPORT_Y_SCALE,
 211         /** @} */
 212
 213         QUNIFORM_VIEWPORT_Z_OFFSET,
 214         QUNIFORM_VIEWPORT_Z_SCALE,
 215
 216         QUNIFORM_USER_CLIP_PLANE,
 217
 218         /**
 219          * A reference to a texture config parameter 0 uniform.
 220          *
 221          * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
 222          * defines texture type, miplevels, and such.  It will be found as a
 223          * parameter to the first QOP_TEX_[STRB] instruction in a sequence.
 224          */
 225         QUNIFORM_TEXTURE_CONFIG_P0,
 226
 227         /**
 228          * A reference to a texture config parameter 1 uniform.
 229          *
 230          * This is a uniform implicitly loaded with a QPU_W_TMU* write, which
 231          * defines texture width, height, filters, and wrap modes.  It will be
 232          * found as a parameter to the second QOP_TEX_[STRB] instruction in a
 233          * sequence.
 234          */
 235         QUNIFORM_TEXTURE_CONFIG_P1,
 236
 237         /** A reference to a texture config parameter 2 cubemap stride uniform */
 238         QUNIFORM_TEXTURE_CONFIG_P2,
 239
 240         QUNIFORM_UBO_ADDR,
 241
 242         QUNIFORM_TEXRECT_SCALE_X,
 243         QUNIFORM_TEXRECT_SCALE_Y,
 244
 245         QUNIFORM_TEXTURE_BORDER_COLOR,
 246
 247         QUNIFORM_BLEND_CONST_COLOR_X,
 248         QUNIFORM_BLEND_CONST_COLOR_Y,
 249         QUNIFORM_BLEND_CONST_COLOR_Z,
 250         QUNIFORM_BLEND_CONST_COLOR_W,
 251
 252         QUNIFORM_STENCIL,
 253
 254         QUNIFORM_ALPHA_REF,
 255 };
 256
 257 struct vc4_varying_semantic {
 258         uint8_t semantic;
 259         uint8_t index;
 260         uint8_t swizzle;
 261 };
 262
 263 struct 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
 288 struct vc4_key {
 289         struct vc4_uncompiled_shader *shader_state;
 290         struct {
 291                 enum pipe_format format;
 292                 unsigned compare_mode:1;
 293                 unsigned compare_func:3;
 294                 unsigned wrap_s:3;
 295                 unsigned wrap_t:3;
 296                 uint8_t swizzle[4];
 297         } tex[VC4_MAX_TEXTURE_SAMPLERS];
 298         uint8_t ucp_enables;
 299 };
 300
 301 struct vc4_fs_key {
 302         struct vc4_key base;
 303         enum pipe_format color_format;
 304         bool depth_enabled;
 305         bool stencil_enabled;
 306         bool stencil_twoside;
 307         bool stencil_full_writemasks;
 308         bool is_points;
 309         bool is_lines;
 310         bool alpha_test;
 311         bool point_coord_upper_left;
 312         bool light_twoside;
 313         uint8_t alpha_test_func;
 314         uint8_t logicop_func;
 315         uint32_t point_sprite_mask;
 316
 317         struct pipe_rt_blend_state blend;
 318 };
 319
 320 struct vc4_vs_key {
 321         struct vc4_key base;
 322
 323         /**
 324          * This is a proxy for the array of FS input semantics, which is
 325          * larger than we would want to put in the key.
 326          */
 327         uint64_t compiled_fs_id;
 328
 329         enum pipe_format attr_formats[8];
 330         bool is_coord;
 331         bool per_vertex_point_size;
 332 };
 333
 334 struct vc4_compile {
 335         struct vc4_context *vc4;
 336         nir_shader *s;
 337         nir_function_impl *impl;
 338         struct exec_list *cf_node_list;
 339
 340         /**
 341          * Mapping from nir_register * or nir_ssa_def * to array of struct
 342          * qreg for the values.
 343          */
 344         struct hash_table *def_ht;
 345
 346         /* For each temp, the instruction generating its value. */
 347         struct qinst **defs;
 348         uint32_t defs_array_size;
 349
 350         /**
 351          * Inputs to the shader, arranged by TGSI declaration order.
 352          *
 353          * Not all fragment shader QFILE_VARY reads are present in this array.
 354          */
 355         struct qreg *inputs;
 356         struct qreg *outputs;
 357         uint32_t inputs_array_size;
 358         uint32_t outputs_array_size;
 359         uint32_t uniforms_array_size;
 360
 361         struct vc4_compiler_ubo_range *ubo_ranges;
 362         uint32_t ubo_ranges_array_size;
 363         /** Number of uniform areas declared in ubo_ranges. */
 364         uint32_t num_uniform_ranges;
 365         /** Number of uniform areas used for indirect addressed loads. */
 366         uint32_t num_ubo_ranges;
 367         uint32_t next_ubo_dst_offset;
 368
 369         struct qreg line_x, point_x, point_y;
 370         struct qreg discard;
 371
 372         uint8_t vattr_sizes[8];
 373
 374         /**
 375          * Array of the TGSI semantics of all FS QFILE_VARY reads.
 376          *
 377          * This includes those that aren't part of the VPM varyings, like
 378          * point/line coordinates.
 379          */
 380         struct vc4_varying_semantic *input_semantics;
 381         uint32_t num_input_semantics;
 382         uint32_t input_semantics_array_size;
 383
 384         /**
 385          * An entry per outputs[] in the VS indicating what the semantic of
 386          * the output is.  Used to emit from the VS in the order that the FS
 387          * needs.
 388          */
 389         struct vc4_varying_semantic *output_semantics;
 390
 391         struct pipe_shader_state *shader_state;
 392         struct vc4_key *key;
 393         struct vc4_fs_key *fs_key;
 394         struct vc4_vs_key *vs_key;
 395
 396         uint32_t *uniform_data;
 397         enum quniform_contents *uniform_contents;
 398         uint32_t uniform_array_size;
 399         uint32_t num_uniforms;
 400         uint32_t num_outputs;
 401         uint32_t num_texture_samples;
 402         uint32_t output_position_index;
 403         uint32_t output_clipvertex_index;
 404         uint32_t output_color_index;
 405         uint32_t output_point_size_index;
 406
 407         struct qreg undef;
 408         enum qstage stage;
 409         uint32_t num_temps;
 410         struct list_head instructions;
 411         uint32_t immediates[1024];
 412
 413         struct list_head qpu_inst_list;
 414         uint64_t *qpu_insts;
 415         uint32_t qpu_inst_count;
 416         uint32_t qpu_inst_size;
 417         uint32_t num_inputs;
 418
 419         uint32_t program_id;
 420         uint32_t variant_id;
 421 };
 422
 423 /* Special nir_load_input intrinsic index for loading the current TLB
 424  * destination color.
 425  */
 426 #define VC4_NIR_TLB_COLOR_READ_INPUT            2000000000
 427
 428 /* Special offset for nir_load_uniform values to get a QUNIFORM_*
 429  * state-dependent value.
 430  */
 431 #define VC4_NIR_STATE_UNIFORM_OFFSET            2000000000
 432
 433 struct vc4_compile *qir_compile_init(void);
 434 void qir_compile_destroy(struct vc4_compile *c);
 435 struct qinst *qir_inst(enum qop op, struct qreg dst,
 436                        struct qreg src0, struct qreg src1);
 437 struct qinst *qir_inst4(enum qop op, struct qreg dst,
 438                         struct qreg a,
 439                         struct qreg b,
 440                         struct qreg c,
 441                         struct qreg d);
 442 void qir_remove_instruction(struct vc4_compile *c, struct qinst *qinst);
 443 struct qreg qir_uniform(struct vc4_compile *c,
 444                         enum quniform_contents contents,
 445                         uint32_t data);
 446 void qir_reorder_uniforms(struct vc4_compile *c);
 447 void qir_emit(struct vc4_compile *c, struct qinst *inst);
 448 struct qreg qir_get_temp(struct vc4_compile *c);
 449 int qir_get_op_nsrc(enum qop qop);
 450 bool qir_reg_equals(struct qreg a, struct qreg b);
 451 bool qir_has_side_effects(struct vc4_compile *c, struct qinst *inst);
 452 bool qir_has_side_effect_reads(struct vc4_compile *c, struct qinst *inst);
 453 bool qir_is_multi_instruction(struct qinst *inst);
 454 bool qir_is_tex(struct qinst *inst);
 455 bool qir_depends_on_flags(struct qinst *inst);
 456 bool qir_writes_r4(struct qinst *inst);
 457 bool qir_src_needs_a_file(struct qinst *inst);
 458 struct qreg qir_follow_movs(struct vc4_compile *c, struct qreg reg);
 459
 460 void qir_dump(struct vc4_compile *c);
 461 void qir_dump_inst(struct vc4_compile *c, struct qinst *inst);
 462 const char *qir_get_stage_name(enum qstage stage);
 463
 464 void qir_optimize(struct vc4_compile *c);
 465 bool qir_opt_algebraic(struct vc4_compile *c);
 466 bool qir_opt_constant_folding(struct vc4_compile *c);
 467 bool qir_opt_copy_propagation(struct vc4_compile *c);
 468 bool qir_opt_cse(struct vc4_compile *c);
 469 bool qir_opt_dead_code(struct vc4_compile *c);
 470 bool qir_opt_small_immediates(struct vc4_compile *c);
 471 bool qir_opt_vpm_writes(struct vc4_compile *c);
 472 void vc4_nir_lower_blend(struct vc4_compile *c);
 473 void vc4_nir_lower_io(struct vc4_compile *c);
 474 nir_ssa_def *vc4_nir_get_state_uniform(struct nir_builder *b,
 475                                        enum quniform_contents contents);
 476 nir_ssa_def *vc4_nir_get_swizzled_channel(struct nir_builder *b,
 477                                           nir_ssa_def **srcs, int swiz);
 478 void qir_lower_uniforms(struct vc4_compile *c);
 479
 480 void qpu_schedule_instructions(struct vc4_compile *c);
 481
 482 void qir_SF(struct vc4_compile *c, struct qreg src);
 483
 484 static inline struct qreg
 485 qir_uniform_ui(struct vc4_compile *c, uint32_t ui)
 486 {
 487         return qir_uniform(c, QUNIFORM_CONSTANT, ui);
 488 }
 489
 490 static inline struct qreg
 491 qir_uniform_f(struct vc4_compile *c, float f)
 492 {
 493         return qir_uniform(c, QUNIFORM_CONSTANT, fui(f));
 494 }
 495
 496 #define QIR_ALU0(name)                                                   \
 497 static inline struct qreg                                                \
 498 qir_##name(struct vc4_compile *c)                                        \
 499 {                                                                        \
 500         struct qreg t = qir_get_temp(c);                                 \
 501         qir_emit(c, qir_inst(QOP_##name, t, c->undef, c->undef));        \
 502         return t;                                                        \
 503 }
 504
 505 #define QIR_ALU1(name)                                                   \
 506 static inline struct qreg                                                \
 507 qir_##name(struct vc4_compile *c, struct qreg a)                         \
 508 {                                                                        \
 509         struct qreg t = qir_get_temp(c);                                 \
 510         qir_emit(c, qir_inst(QOP_##name, t, a, c->undef));               \
 511         return t;                                                        \
 512 }
 513
 514 #define QIR_ALU2(name)                                                   \
 515 static inline struct qreg                                                \
 516 qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b)          \
 517 {                                                                        \
 518         struct qreg t = qir_get_temp(c);                                 \
 519         qir_emit(c, qir_inst(QOP_##name, t, a, b));                      \
 520         return t;                                                        \
 521 }
 522
 523 #define QIR_NODST_1(name)                                               \
 524 static inline void                                                      \
 525 qir_##name(struct vc4_compile *c, struct qreg a)                        \
 526 {                                                                       \
 527         qir_emit(c, qir_inst(QOP_##name, c->undef, a, c->undef));       \
 528 }
 529
 530 #define QIR_NODST_2(name)                                               \
 531 static inline void                                                      \
 532 qir_##name(struct vc4_compile *c, struct qreg a, struct qreg b)         \
 533 {                                                                       \
 534         qir_emit(c, qir_inst(QOP_##name, c->undef, a, b));       \
 535 }
 536
 537 #define QIR_PACK(name)                                                   \
 538 static inline struct qreg                                                \
 539 qir_##name(struct vc4_compile *c, struct qreg dest, struct qreg a)       \
 540 {                                                                        \
 541         qir_emit(c, qir_inst(QOP_##name, dest, a, c->undef));            \
 542         if (dest.file == QFILE_TEMP)                                     \
 543                 c->defs[dest.index] = NULL;                              \
 544         return dest;                                                     \
 545 }
 546
 547 QIR_ALU1(MOV)
 548 QIR_ALU2(FADD)
 549 QIR_ALU2(FSUB)
 550 QIR_ALU2(FMUL)
 551 QIR_ALU2(MUL24)
 552 QIR_ALU1(SEL_X_0_ZS)
 553 QIR_ALU1(SEL_X_0_ZC)
 554 QIR_ALU1(SEL_X_0_NS)
 555 QIR_ALU1(SEL_X_0_NC)
 556 QIR_ALU2(SEL_X_Y_ZS)
 557 QIR_ALU2(SEL_X_Y_ZC)
 558 QIR_ALU2(SEL_X_Y_NS)
 559 QIR_ALU2(SEL_X_Y_NC)
 560 QIR_ALU2(FMIN)
 561 QIR_ALU2(FMAX)
 562 QIR_ALU2(FMINABS)
 563 QIR_ALU2(FMAXABS)
 564 QIR_ALU1(FTOI)
 565 QIR_ALU1(ITOF)
 566
 567 QIR_ALU2(ADD)
 568 QIR_ALU2(SUB)
 569 QIR_ALU2(SHL)
 570 QIR_ALU2(SHR)
 571 QIR_ALU2(ASR)
 572 QIR_ALU2(MIN)
 573 QIR_ALU2(MAX)
 574 QIR_ALU2(AND)
 575 QIR_ALU2(OR)
 576 QIR_ALU2(XOR)
 577 QIR_ALU1(NOT)
 578
 579 QIR_ALU1(RCP)
 580 QIR_ALU1(RSQ)
 581 QIR_ALU1(EXP2)
 582 QIR_ALU1(LOG2)
 583 QIR_ALU2(PACK_SCALED)
 584 QIR_ALU1(PACK_8888_F)
 585 QIR_PACK(PACK_8A_F)
 586 QIR_PACK(PACK_8B_F)
 587 QIR_PACK(PACK_8C_F)
 588 QIR_PACK(PACK_8D_F)
 589 QIR_ALU1(VARY_ADD_C)
 590 QIR_NODST_2(TEX_S)
 591 QIR_NODST_2(TEX_T)
 592 QIR_NODST_2(TEX_R)
 593 QIR_NODST_2(TEX_B)
 594 QIR_NODST_2(TEX_DIRECT)
 595 QIR_ALU0(FRAG_X)
 596 QIR_ALU0(FRAG_Y)
 597 QIR_ALU0(FRAG_Z)
 598 QIR_ALU0(FRAG_W)
 599 QIR_ALU0(FRAG_REV_FLAG)
 600 QIR_ALU0(TEX_RESULT)
 601 QIR_ALU0(TLB_COLOR_READ)
 602 QIR_NODST_1(TLB_COLOR_WRITE)
 603 QIR_NODST_1(TLB_Z_WRITE)
 604 QIR_NODST_1(TLB_DISCARD_SETUP)
 605 QIR_NODST_1(TLB_STENCIL_SETUP)
 606
 607 static inline struct qreg
 608 qir_UNPACK_8_F(struct vc4_compile *c, struct qreg src, int i)
 609 {
 610         struct qreg t = qir_get_temp(c);
 611         qir_emit(c, qir_inst(QOP_UNPACK_8A_F + i, t, src, c->undef));
 612         return t;
 613 }
 614
 615 static inline struct qreg
 616 qir_UNPACK_8_I(struct vc4_compile *c, struct qreg src, int i)
 617 {
 618         struct qreg t = qir_get_temp(c);
 619         qir_emit(c, qir_inst(QOP_UNPACK_8A_I + i, t, src, c->undef));
 620         return t;
 621 }
 622
 623 static inline struct qreg
 624 qir_UNPACK_16_F(struct vc4_compile *c, struct qreg src, int i)
 625 {
 626         struct qreg t = qir_get_temp(c);
 627         qir_emit(c, qir_inst(QOP_UNPACK_16A_F + i, t, src, c->undef));
 628         return t;
 629 }
 630
 631 static inline struct qreg
 632 qir_UNPACK_16_I(struct vc4_compile *c, struct qreg src, int i)
 633 {
 634         struct qreg t = qir_get_temp(c);
 635         qir_emit(c, qir_inst(QOP_UNPACK_16A_I + i, t, src, c->undef));
 636         return t;
 637 }
 638
 639 static inline struct qreg
 640 qir_PACK_8_F(struct vc4_compile *c, struct qreg dest, struct qreg val, int chan)
 641 {
 642         qir_emit(c, qir_inst(QOP_PACK_8A_F + chan, dest, val, c->undef));
 643         if (dest.file == QFILE_TEMP)
 644                 c->defs[dest.index] = NULL;
 645         return dest;
 646 }
 647
 648 static inline struct qreg
 649 qir_POW(struct vc4_compile *c, struct qreg x, struct qreg y)
 650 {
 651         return qir_EXP2(c, qir_FMUL(c,
 652                                     y,
 653                                     qir_LOG2(c, x)));
 654 }
 655
 656 static inline void
 657 qir_VPM_WRITE(struct vc4_compile *c, struct qreg val)
 658 {
 659         static const struct qreg vpm = { QFILE_VPM, 0 };
 660         qir_emit(c, qir_inst(QOP_MOV, vpm, val, c->undef));
 661 }
 662
 663 #endif /* VC4_QIR_H */