src/gallium/drivers/lima/lima_program.c

   1 /*
   2  * Copyright (c) 2017-2019 Lima Project
   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, sub license,
   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
  12  * next paragraph) shall be included in all copies or substantial portions
  13  * of the 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 NON-INFRINGEMENT. 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
  21  * DEALINGS IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #include "util/u_memory.h"
  26 #include "util/ralloc.h"
  27 #include "util/u_debug.h"
  28
  29 #include "tgsi/tgsi_dump.h"
  30 #include "compiler/nir/nir.h"
  31 #include "nir/tgsi_to_nir.h"
  32
  33 #include "pipe/p_state.h"
  34
  35 #include "lima_screen.h"
  36 #include "lima_context.h"
  37 #include "lima_program.h"
  38 #include "lima_bo.h"
  39 #include "ir/lima_ir.h"
  40
  41 static const nir_shader_compiler_options vs_nir_options = {
  42    .lower_ffma = true,
  43    .lower_fpow = true,
  44    .lower_ffract = true,
  45    .lower_fdiv = true,
  46    .lower_fsqrt = true,
  47    .lower_sub = true,
  48    .lower_flrp32 = true,
  49    .lower_flrp64 = true,
  50    .lower_ftrunc = true,
  51    /* could be implemented by clamp */
  52    .lower_fsat = true,
  53    .lower_bitshift = true,
  54 };
  55
  56 static const nir_shader_compiler_options fs_nir_options = {
  57    .lower_fpow = true,
  58    .lower_fdiv = true,
  59    .lower_sub = true,
  60    .lower_flrp32 = true,
  61    .lower_flrp64 = true,
  62    .lower_fsign = true,
  63 };
  64
  65 const void *
  66 lima_program_get_compiler_options(enum pipe_shader_type shader)
  67 {
  68    switch (shader) {
  69    case PIPE_SHADER_VERTEX:
  70       return &vs_nir_options;
  71    case PIPE_SHADER_FRAGMENT:
  72       return &fs_nir_options;
  73    default:
  74       return NULL;
  75    }
  76 }
  77
  78 static int
  79 type_size(const struct glsl_type *type, bool bindless)
  80 {
  81    return glsl_count_attribute_slots(type, false);
  82 }
  83
  84 static void
  85 lima_program_optimize_vs_nir(struct nir_shader *s)
  86 {
  87    bool progress;
  88
  89    NIR_PASS_V(s, nir_lower_viewport_transform);
  90    NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
  91    NIR_PASS_V(s, nir_lower_regs_to_ssa);
  92    NIR_PASS_V(s, nir_lower_load_const_to_scalar);
  93    NIR_PASS_V(s, lima_nir_lower_uniform_to_scalar);
  94    NIR_PASS_V(s, nir_lower_io_to_scalar,
  95               nir_var_shader_in|nir_var_shader_out);
  96    NIR_PASS_V(s, nir_lower_sincos);
  97
  98    do {
  99       progress = false;
 100
 101       NIR_PASS_V(s, nir_lower_vars_to_ssa);
 102       NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
 103       NIR_PASS(progress, s, nir_lower_phis_to_scalar);
 104       NIR_PASS(progress, s, nir_copy_prop);
 105       NIR_PASS(progress, s, nir_opt_remove_phis);
 106       NIR_PASS(progress, s, nir_opt_dce);
 107       NIR_PASS(progress, s, nir_opt_dead_cf);
 108       NIR_PASS(progress, s, nir_opt_cse);
 109       NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
 110       NIR_PASS(progress, s, nir_opt_algebraic);
 111       NIR_PASS(progress, s, nir_opt_constant_folding);
 112       NIR_PASS(progress, s, nir_opt_undef);
 113       NIR_PASS(progress, s, nir_opt_loop_unroll,
 114                nir_var_shader_in |
 115                nir_var_shader_out |
 116                nir_var_function_temp);
 117    } while (progress);
 118
 119    NIR_PASS_V(s, nir_lower_int_to_float);
 120    NIR_PASS_V(s, nir_lower_bool_to_float);
 121    NIR_PASS_V(s, nir_copy_prop);
 122    NIR_PASS_V(s, nir_lower_locals_to_regs);
 123    NIR_PASS_V(s, nir_convert_from_ssa, true);
 124    NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
 125    nir_sweep(s);
 126 }
 127
 128 static void
 129 lima_program_optimize_fs_nir(struct nir_shader *s)
 130 {
 131    bool progress;
 132
 133    NIR_PASS_V(s, nir_lower_fragcoord_wtrans);
 134    NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
 135    NIR_PASS_V(s, nir_lower_regs_to_ssa);
 136
 137    do {
 138       progress = false;
 139
 140       NIR_PASS_V(s, nir_lower_vars_to_ssa);
 141       //NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
 142       NIR_PASS(progress, s, nir_lower_phis_to_scalar);
 143       NIR_PASS(progress, s, nir_copy_prop);
 144       NIR_PASS(progress, s, nir_opt_remove_phis);
 145       NIR_PASS(progress, s, nir_opt_dce);
 146       NIR_PASS(progress, s, nir_opt_dead_cf);
 147       NIR_PASS(progress, s, nir_opt_cse);
 148       NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
 149       NIR_PASS(progress, s, nir_opt_algebraic);
 150       NIR_PASS(progress, s, nir_opt_constant_folding);
 151       NIR_PASS(progress, s, nir_opt_undef);
 152       NIR_PASS(progress, s, nir_opt_loop_unroll,
 153                nir_var_shader_in |
 154                nir_var_shader_out |
 155                nir_var_function_temp);
 156    } while (progress);
 157
 158    NIR_PASS_V(s, nir_lower_int_to_float);
 159    NIR_PASS_V(s, nir_lower_bool_to_float);
 160
 161    /* Lower modifiers */
 162    NIR_PASS_V(s, nir_lower_to_source_mods, nir_lower_all_source_mods);
 163    NIR_PASS_V(s, nir_copy_prop);
 164    NIR_PASS_V(s, nir_opt_dce);
 165
 166    NIR_PASS_V(s, nir_lower_locals_to_regs);
 167    NIR_PASS_V(s, nir_convert_from_ssa, true);
 168    NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
 169
 170    NIR_PASS_V(s, nir_move_vec_src_uses_to_dest);
 171    NIR_PASS_V(s, nir_lower_vec_to_movs);
 172
 173    nir_sweep(s);
 174 }
 175
 176 static void *
 177 lima_create_fs_state(struct pipe_context *pctx,
 178                      const struct pipe_shader_state *cso)
 179 {
 180    struct lima_screen *screen = lima_screen(pctx->screen);
 181    struct lima_fs_shader_state *so = rzalloc(NULL, struct lima_fs_shader_state);
 182
 183    if (!so)
 184       return NULL;
 185
 186    nir_shader *nir;
 187    if (cso->type == PIPE_SHADER_IR_NIR)
 188       nir = cso->ir.nir;
 189    else {
 190       assert(cso->type == PIPE_SHADER_IR_TGSI);
 191
 192       nir = tgsi_to_nir(cso->tokens, pctx->screen);
 193    }
 194
 195    lima_program_optimize_fs_nir(nir);
 196
 197    if (lima_debug & LIMA_DEBUG_PP)
 198       nir_print_shader(nir, stdout);
 199
 200    if (!ppir_compile_nir(so, nir, screen->pp_ra)) {
 201       ralloc_free(so);
 202       return NULL;
 203    }
 204
 205    return so;
 206 }
 207
 208 static void
 209 lima_bind_fs_state(struct pipe_context *pctx, void *hwcso)
 210 {
 211    struct lima_context *ctx = lima_context(pctx);
 212
 213    ctx->fs = hwcso;
 214    ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_FRAG;
 215 }
 216
 217 static void
 218 lima_delete_fs_state(struct pipe_context *pctx, void *hwcso)
 219 {
 220    struct lima_fs_shader_state *so = hwcso;
 221
 222    if (so->bo)
 223       lima_bo_free(so->bo);
 224
 225    ralloc_free(so);
 226 }
 227
 228 bool
 229 lima_update_vs_state(struct lima_context *ctx)
 230 {
 231    struct lima_vs_shader_state *vs = ctx->vs;
 232    if (!vs->bo) {
 233       struct lima_screen *screen = lima_screen(ctx->base.screen);
 234       vs->bo = lima_bo_create(screen, vs->shader_size, 0);
 235       if (!vs->bo) {
 236          fprintf(stderr, "lima: create vs shader bo fail\n");
 237          return false;
 238       }
 239
 240       memcpy(lima_bo_map(vs->bo), vs->shader, vs->shader_size);
 241       ralloc_free(vs->shader);
 242       vs->shader = NULL;
 243    }
 244
 245    return true;
 246 }
 247
 248 bool
 249 lima_update_fs_state(struct lima_context *ctx)
 250 {
 251    struct lima_fs_shader_state *fs = ctx->fs;
 252    if (!fs->bo) {
 253       struct lima_screen *screen = lima_screen(ctx->base.screen);
 254       fs->bo = lima_bo_create(screen, fs->shader_size, 0);
 255       if (!fs->bo) {
 256          fprintf(stderr, "lima: create fs shader bo fail\n");
 257          return false;
 258       }
 259
 260       memcpy(lima_bo_map(fs->bo), fs->shader, fs->shader_size);
 261       ralloc_free(fs->shader);
 262       fs->shader = NULL;
 263    }
 264
 265    return true;
 266 }
 267
 268 static void *
 269 lima_create_vs_state(struct pipe_context *pctx,
 270                      const struct pipe_shader_state *cso)
 271 {
 272    struct lima_vs_shader_state *so = rzalloc(NULL, struct lima_vs_shader_state);
 273
 274    if (!so)
 275       return NULL;
 276
 277    nir_shader *nir;
 278    if (cso->type == PIPE_SHADER_IR_NIR)
 279       nir = cso->ir.nir;
 280    else {
 281       assert(cso->type == PIPE_SHADER_IR_TGSI);
 282
 283       nir = tgsi_to_nir(cso->tokens, pctx->screen);
 284    }
 285
 286    lima_program_optimize_vs_nir(nir);
 287
 288    if (lima_debug & LIMA_DEBUG_GP)
 289       nir_print_shader(nir, stdout);
 290
 291    if (!gpir_compile_nir(so, nir)) {
 292       ralloc_free(so);
 293       return NULL;
 294    }
 295
 296    return so;
 297 }
 298
 299 static void
 300 lima_bind_vs_state(struct pipe_context *pctx, void *hwcso)
 301 {
 302    struct lima_context *ctx = lima_context(pctx);
 303
 304    ctx->vs = hwcso;
 305    ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_VERT;
 306 }
 307
 308 static void
 309 lima_delete_vs_state(struct pipe_context *pctx, void *hwcso)
 310 {
 311    struct lima_vs_shader_state *so = hwcso;
 312
 313    if (so->bo)
 314       lima_bo_free(so->bo);
 315
 316    ralloc_free(so);
 317 }
 318
 319 void
 320 lima_program_init(struct lima_context *ctx)
 321 {
 322    ctx->base.create_fs_state = lima_create_fs_state;
 323    ctx->base.bind_fs_state = lima_bind_fs_state;
 324    ctx->base.delete_fs_state = lima_delete_fs_state;
 325
 326    ctx->base.create_vs_state = lima_create_vs_state;
 327    ctx->base.bind_vs_state = lima_bind_vs_state;
 328    ctx->base.delete_vs_state = lima_delete_vs_state;
 329 }