src/panfrost/bifrost/bi_print.c

   1 /*
   2  * Copyright (C) 2019 Connor Abbott <cwabbott0@gmail.com>
   3  * Copyright (C) 2019 Lyude Paul <thatslyude@gmail.com>
   4  * Copyright (C) 2019 Ryan Houdek <Sonicadvance1@gmail.com>
   5  * Copyright (C) 2019-2020 Collabora, Ltd.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  */
  26
  27 #include "bi_print.h"
  28
  29 const char *
  30 bi_output_mod_name(enum bifrost_outmod mod)
  31 {
  32         switch (mod) {
  33         case BIFROST_NONE: return "";
  34         case BIFROST_POS: return ".pos";
  35         case BIFROST_SAT_SIGNED: return ".sat_signed";
  36         case BIFROST_SAT: return ".sat";
  37         default: return "invalid";
  38         }
  39 }
  40
  41 const char *
  42 bi_minmax_mode_name(enum bifrost_minmax_mode mod)
  43 {
  44         switch (mod) {
  45         case BIFROST_MINMAX_NONE: return "";
  46         case BIFROST_NAN_WINS: return ".nan_wins";
  47         case BIFROST_SRC1_WINS: return ".src1_wins";
  48         case BIFROST_SRC0_WINS: return ".src0_wins";
  49         default: return "invalid";
  50         }
  51 }
  52
  53 const char *
  54 bi_round_mode_name(enum bifrost_roundmode mod)
  55 {
  56         switch (mod) {
  57         case BIFROST_RTE: return "";
  58         case BIFROST_RTP: return ".rtp";
  59         case BIFROST_RTN: return ".rtn";
  60         case BIFROST_RTZ: return ".rtz";
  61         default: return "invalid";
  62         }
  63 }
  64
  65 const char *
  66 bi_csel_cond_name(enum bifrost_csel_cond cond)
  67 {
  68         switch (cond) {
  69         case BIFROST_FEQ_F: return "feq.f";
  70         case BIFROST_FGT_F: return "fgt.f";
  71         case BIFROST_FGE_F: return "fge.f";
  72         case BIFROST_IEQ_F: return "ieq.f";
  73         case BIFROST_IGT_I: return "igt.i";
  74         case BIFROST_IGE_I: return "uge.i";
  75         case BIFROST_UGT_I: return "ugt.i";
  76         case BIFROST_UGE_I: return "uge.i";
  77         default: return "invalid";
  78         }
  79 }
  80
  81 const char *
  82 bi_interp_mode_name(enum bifrost_interp_mode mode)
  83 {
  84         switch (mode) {
  85         case BIFROST_INTERP_PER_FRAG: return ".per_frag";
  86         case BIFROST_INTERP_CENTROID: return ".centroid";
  87         case BIFROST_INTERP_DEFAULT: return "";
  88         case BIFROST_INTERP_EXPLICIT: return ".explicit";
  89         default: return ".unknown";
  90         }
  91 }
  92
  93 const char *
  94 bi_ldst_type_name(enum bifrost_ldst_type type)
  95 {
  96         switch (type) {
  97         case BIFROST_LDST_F16: return "f16";
  98         case BIFROST_LDST_F32: return "f32";
  99         case BIFROST_LDST_I32: return "i32";
 100         case BIFROST_LDST_U32: return "u32";
 101         default: return "invalid";
 102         }
 103 }
 104
 105 /* The remaining functions in this file are for IR-internal
 106  * structures; the disassembler doesn't use them */
 107
 108 static const char *
 109 bi_class_name(enum bi_class cl)
 110 {
 111         switch (cl) {
 112         case BI_ADD: return "add";
 113         case BI_ATEST: return "atest";
 114         case BI_BRANCH: return "branch";
 115         case BI_CMP: return "cmp";
 116         case BI_BLEND: return "blend";
 117         case BI_BITWISE: return "bitwise";
 118         case BI_CONVERT: return "convert";
 119         case BI_CSEL: return "csel";
 120         case BI_DISCARD: return "discard";
 121         case BI_EXTRACT: return "extract";
 122         case BI_FMA: return "fma";
 123         case BI_FREXP: return "frexp";
 124         case BI_LOAD: return "load";
 125         case BI_LOAD_ATTR: return "load_attr";
 126         case BI_LOAD_VAR: return "load_var";
 127         case BI_LOAD_VAR_ADDRESS: return "load_var_address";
 128         case BI_MAKE_VEC: return "make_vec";
 129         case BI_MINMAX: return "minmax";
 130         case BI_MOV: return "mov";
 131         case BI_SHIFT: return "shift";
 132         case BI_STORE: return "store";
 133         case BI_STORE_VAR: return "store_var";
 134         case BI_SPECIAL: return "special";
 135         case BI_SWIZZLE: return "swizzle";
 136         case BI_TEX: return "tex";
 137         case BI_ROUND: return "round";
 138         default: return "unknown_class";
 139         }
 140 }
 141
 142 static void
 143 bi_print_src(FILE *fp, bi_instruction *ins, unsigned s)
 144 {
 145         unsigned src = ins->src[s];
 146         bool mods = bi_has_source_mods(ins);
 147         bool abs = ins->src_abs[s] && mods;
 148         bool neg = ins->src_neg[s] && mods;
 149
 150         if (neg)
 151                 fprintf(fp, "-");
 152
 153         if (abs)
 154                 fprintf(fp, "abs(");
 155
 156         if (!src)
 157                 fprintf(fp, "_");
 158         else if (src & BIR_INDEX_REGISTER)
 159                 fprintf(fp, "br%u", src & ~BIR_INDEX_REGISTER);
 160         else if (src & BIR_INDEX_UNIFORM)
 161                 fprintf(fp, "u%u", src & ~BIR_INDEX_UNIFORM);
 162         else if (src & BIR_INDEX_CONSTANT)
 163                 fprintf(fp, "#0x%" PRIx64, ins->constant.u64);
 164         else if (src & BIR_INDEX_ZERO)
 165                 fprintf(fp, "#0");
 166         else if (src & BIR_IS_REG)
 167                 fprintf(fp, "r%u", src >> 1);
 168         else
 169                 fprintf(fp, "%u", (src >> 1) - 1);
 170
 171         if (abs)
 172                 fprintf(fp, ")");
 173 }
 174
 175 /* Prints a NIR ALU type in Bifrost-style ".f32" ".i8" etc */
 176
 177 static void
 178 bi_print_alu_type(nir_alu_type t, FILE *fp)
 179 {
 180         unsigned size = nir_alu_type_get_type_size(t);
 181         nir_alu_type base = nir_alu_type_get_base_type(t);
 182
 183         switch (base) {
 184         case nir_type_int:
 185                 fprintf(fp, ".i");
 186                 break;
 187         case nir_type_uint:
 188                 fprintf(fp, ".u");
 189                 break;
 190         case nir_type_bool:
 191                 fprintf(fp, ".b");
 192                 break;
 193         case nir_type_float:
 194                 fprintf(fp, ".f");
 195                 break;
 196         default:
 197                 fprintf(fp, ".unknown");
 198                 break;
 199         }
 200
 201         fprintf(fp, "%u", size);
 202 }
 203
 204 static void
 205 bi_print_swizzle(bi_instruction *ins, FILE *fp)
 206 {
 207         unsigned size = nir_alu_type_get_type_size(ins->dest_type);
 208         unsigned count = 32 / size;
 209         assert(size == 8 || size == 16);
 210
 211         fprintf(fp, ".");
 212
 213         for (unsigned u = 0; u < count; ++u) {
 214                 assert(ins->swizzle[u] < size);
 215                 fputc("xyzw"[ins->swizzle[u]], fp);
 216         }
 217 }
 218
 219 static const char *
 220 bi_bitwise_op_name(enum bi_bitwise_op op)
 221 {
 222         switch (op) {
 223         case BI_BITWISE_AND: return "and";
 224         case BI_BITWISE_OR: return "or";
 225         case BI_BITWISE_XOR: return "xor";
 226         default: return "invalid";
 227         }
 228 }
 229
 230 static void
 231 bi_print_load(struct bi_load *load, FILE *fp)
 232 {
 233         fprintf(fp, ".loc%u", load->location);
 234
 235         if (load->channels != 1)
 236                 fprintf(fp, ".v%u", load->channels);
 237 }
 238
 239 static void
 240 bi_print_load_vary(struct bi_load_vary *load, FILE *fp)
 241 {
 242         bi_print_load(&load->load, fp);
 243         fprintf(fp, "%s", bi_interp_mode_name(load->interp_mode));
 244
 245         if (load->reuse)
 246                 fprintf(fp, ".reuse");
 247
 248         if (load->flat)
 249                 fprintf(fp, ".flat");
 250 }
 251
 252 static const char *
 253 bi_cond_name(enum bi_cond cond)
 254 {
 255         switch (cond) {
 256         case BI_COND_ALWAYS: return ".always";
 257         case BI_COND_LT: return ".lt";
 258         case BI_COND_LE: return ".le";
 259         case BI_COND_GE: return ".ge";
 260         case BI_COND_GT: return ".gt";
 261         case BI_COND_EQ: return ".eq";
 262         case BI_COND_NE: return ".ne";
 263         default: return "invalid";
 264         }
 265 }
 266
 267 static void
 268 bi_print_branch(struct bi_branch *branch, FILE *fp)
 269 {
 270         fprintf(fp, "%s", bi_cond_name(branch->cond));
 271 }
 272
 273 void
 274 bi_print_instruction(bi_instruction *ins, FILE *fp)
 275 {
 276         if (ins->type == BI_MINMAX)
 277                 fprintf(fp, "%s", ins->op.minmax == BI_MINMAX_MIN ? "min" : "max");
 278         else if (ins->type == BI_BITWISE)
 279                 fprintf(fp, "%s", bi_bitwise_op_name(ins->op.bitwise));
 280         else if (ins->type == BI_ROUND)
 281                 fprintf(fp, ins->op.round == BI_ROUND_MODE ? "roundMode": "round");
 282         else
 283                 fprintf(fp, "%s", bi_class_name(ins->type));
 284
 285         if (ins->type == BI_MINMAX)
 286                 fprintf(fp, "%s", bi_minmax_mode_name(ins->minmax));
 287         else if (ins->type == BI_LOAD_ATTR || ins->type == BI_LOAD_VAR_ADDRESS)
 288                 bi_print_load(&ins->load, fp);
 289         else if (ins->type == BI_LOAD_VAR)
 290                 bi_print_load_vary(&ins->load_vary, fp);
 291         else if (ins->type == BI_BRANCH)
 292                 bi_print_branch(&ins->branch, fp);
 293         else if (ins->type == BI_CSEL)
 294                 fprintf(fp, "%s", bi_cond_name(ins->csel_cond));
 295
 296         if (ins->dest)
 297                 bi_print_alu_type(ins->dest_type, fp);
 298
 299         if (bi_has_outmod(ins))
 300                 fprintf(fp, "%s", bi_output_mod_name(ins->outmod));
 301
 302         if (bi_class_props[ins->type] & BI_ROUNDMODE)
 303                 fprintf(fp, "%s", bi_round_mode_name(ins->roundmode));
 304
 305         fprintf(fp, " ");
 306
 307         if (ins->dest)
 308                 fprintf(fp, "%d", ins->dest);
 309         else
 310                 fprintf(fp, "_");
 311
 312         fprintf(fp, ", ");
 313
 314         bi_foreach_src(ins, s) {
 315                 bi_print_src(fp, ins, s);
 316
 317                 if (bi_is_src_swizzled(ins, s))
 318                         bi_print_swizzle(ins, fp);
 319
 320                 if (ins->type == BI_CONVERT && s == 0)
 321                         bi_print_alu_type(ins->src_types[s], fp);
 322                 else if ((ins->type == BI_BRANCH || ins->type == BI_CSEL) && s < 2)
 323                         bi_print_alu_type(ins->src_types[s], fp);
 324
 325                 if (s < BIR_SRC_COUNT)
 326                         fprintf(fp, ", ");
 327         }
 328
 329         fprintf(fp, "\n");
 330 }