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_fmod = true,
  47    .lower_fsqrt = true,
  48    .lower_sub = true,
  49    .lower_flrp32 = true,
  50    .lower_flrp64 = true,
  51    .lower_ftrunc = true,
  52    /* could be implemented by clamp */
  53    .lower_fsat = true,
  54    .lower_bitops = true,
  55    .lower_rotate = true,
  56    .lower_sincos = true,
  57 };
  58
  59 static const nir_shader_compiler_options fs_nir_options = {
  60    .lower_ffma = true,
  61    .lower_fpow = true,
  62    .lower_fdiv = true,
  63    .lower_fmod = true,
  64    .lower_sub = true,
  65    .lower_flrp32 = true,
  66    .lower_flrp64 = true,
  67    .lower_fsign = true,
  68    .lower_rotate = true,
  69    .lower_fdot = true,
  70 };
  71
  72 static const struct nir_lower_tex_options tex_options = {
  73    .lower_txp = ~0u,
  74 };
  75
  76 const void *
  77 lima_program_get_compiler_options(enum pipe_shader_type shader)
  78 {
  79    switch (shader) {
  80    case PIPE_SHADER_VERTEX:
  81       return &vs_nir_options;
  82    case PIPE_SHADER_FRAGMENT:
  83       return &fs_nir_options;
  84    default:
  85       return NULL;
  86    }
  87 }
  88
  89 static int
  90 type_size(const struct glsl_type *type, bool bindless)
  91 {
  92    return glsl_count_attribute_slots(type, false);
  93 }
  94
  95 void
  96 lima_program_optimize_vs_nir(struct nir_shader *s)
  97 {
  98    bool progress;
  99
 100    NIR_PASS_V(s, nir_lower_viewport_transform);
 101    NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
 102    NIR_PASS_V(s, nir_lower_load_const_to_scalar);
 103    NIR_PASS_V(s, lima_nir_lower_uniform_to_scalar);
 104    NIR_PASS_V(s, nir_lower_io_to_scalar,
 105               nir_var_shader_in|nir_var_shader_out);
 106
 107    do {
 108       progress = false;
 109
 110       NIR_PASS_V(s, nir_lower_vars_to_ssa);
 111       NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
 112       NIR_PASS(progress, s, nir_lower_phis_to_scalar);
 113       NIR_PASS(progress, s, nir_copy_prop);
 114       NIR_PASS(progress, s, nir_opt_remove_phis);
 115       NIR_PASS(progress, s, nir_opt_dce);
 116       NIR_PASS(progress, s, nir_opt_dead_cf);
 117       NIR_PASS(progress, s, nir_opt_cse);
 118       NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
 119       NIR_PASS(progress, s, nir_opt_algebraic);
 120       NIR_PASS(progress, s, nir_opt_constant_folding);
 121       NIR_PASS(progress, s, nir_opt_undef);
 122       NIR_PASS(progress, s, nir_opt_loop_unroll,
 123                nir_var_shader_in |
 124                nir_var_shader_out |
 125                nir_var_function_temp);
 126    } while (progress);
 127
 128    NIR_PASS_V(s, nir_lower_int_to_float);
 129    NIR_PASS_V(s, nir_lower_bool_to_float);
 130    NIR_PASS_V(s, nir_copy_prop);
 131    NIR_PASS_V(s, nir_opt_dce);
 132    NIR_PASS_V(s, nir_lower_locals_to_regs);
 133    NIR_PASS_V(s, nir_convert_from_ssa, true);
 134    NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
 135    nir_sweep(s);
 136 }
 137
 138 void
 139 lima_program_optimize_fs_nir(struct nir_shader *s)
 140 {
 141    bool progress;
 142
 143    NIR_PASS_V(s, nir_lower_fragcoord_wtrans);
 144    NIR_PASS_V(s, nir_lower_io, nir_var_all, type_size, 0);
 145    NIR_PASS_V(s, nir_lower_regs_to_ssa);
 146    NIR_PASS_V(s, nir_lower_tex, &tex_options);
 147
 148    do {
 149       progress = false;
 150
 151       NIR_PASS_V(s, nir_lower_vars_to_ssa);
 152       //NIR_PASS(progress, s, nir_lower_alu_to_scalar, NULL);
 153       NIR_PASS(progress, s, nir_lower_phis_to_scalar);
 154       NIR_PASS(progress, s, nir_copy_prop);
 155       NIR_PASS(progress, s, nir_opt_remove_phis);
 156       NIR_PASS(progress, s, nir_opt_dce);
 157       NIR_PASS(progress, s, nir_opt_dead_cf);
 158       NIR_PASS(progress, s, nir_opt_cse);
 159       NIR_PASS(progress, s, nir_opt_peephole_select, 8, true, true);
 160       NIR_PASS(progress, s, nir_opt_algebraic);
 161       NIR_PASS(progress, s, nir_opt_constant_folding);
 162       NIR_PASS(progress, s, nir_opt_undef);
 163       NIR_PASS(progress, s, nir_opt_loop_unroll,
 164                nir_var_shader_in |
 165                nir_var_shader_out |
 166                nir_var_function_temp);
 167    } while (progress);
 168
 169    NIR_PASS_V(s, nir_lower_int_to_float);
 170    NIR_PASS_V(s, nir_lower_bool_to_float);
 171
 172    /* Lower modifiers */
 173    NIR_PASS_V(s, nir_lower_to_source_mods, nir_lower_all_source_mods);
 174    NIR_PASS_V(s, nir_copy_prop);
 175    NIR_PASS_V(s, nir_opt_dce);
 176
 177    NIR_PASS_V(s, nir_lower_locals_to_regs);
 178    NIR_PASS_V(s, nir_convert_from_ssa, true);
 179    NIR_PASS_V(s, nir_remove_dead_variables, nir_var_function_temp);
 180
 181    NIR_PASS_V(s, nir_move_vec_src_uses_to_dest);
 182    NIR_PASS_V(s, nir_lower_vec_to_movs);
 183
 184    nir_sweep(s);
 185 }
 186
 187 static void *
 188 lima_create_fs_state(struct pipe_context *pctx,
 189                      const struct pipe_shader_state *cso)
 190 {
 191    struct lima_screen *screen = lima_screen(pctx->screen);
 192    struct lima_fs_shader_state *so = rzalloc(NULL, struct lima_fs_shader_state);
 193
 194    if (!so)
 195       return NULL;
 196
 197    nir_shader *nir;
 198    if (cso->type == PIPE_SHADER_IR_NIR)
 199       nir = cso->ir.nir;
 200    else {
 201       assert(cso->type == PIPE_SHADER_IR_TGSI);
 202
 203       nir = tgsi_to_nir(cso->tokens, pctx->screen);
 204    }
 205
 206    lima_program_optimize_fs_nir(nir);
 207
 208    if (lima_debug & LIMA_DEBUG_PP)
 209       nir_print_shader(nir, stdout);
 210
 211    if (!ppir_compile_nir(so, nir, screen->pp_ra)) {
 212       ralloc_free(so);
 213       return NULL;
 214    }
 215
 216    return so;
 217 }
 218
 219 static void
 220 lima_bind_fs_state(struct pipe_context *pctx, void *hwcso)
 221 {
 222    struct lima_context *ctx = lima_context(pctx);
 223
 224    ctx->fs = hwcso;
 225    ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_FRAG;
 226 }
 227
 228 static void
 229 lima_delete_fs_state(struct pipe_context *pctx, void *hwcso)
 230 {
 231    struct lima_fs_shader_state *so = hwcso;
 232
 233    if (so->bo)
 234       lima_bo_free(so->bo);
 235
 236    ralloc_free(so);
 237 }
 238
 239 bool
 240 lima_update_vs_state(struct lima_context *ctx)
 241 {
 242    struct lima_vs_shader_state *vs = ctx->vs;
 243    if (!vs->bo) {
 244       struct lima_screen *screen = lima_screen(ctx->base.screen);
 245       vs->bo = lima_bo_create(screen, vs->shader_size, 0);
 246       if (!vs->bo) {
 247          fprintf(stderr, "lima: create vs shader bo fail\n");
 248          return false;
 249       }
 250
 251       memcpy(lima_bo_map(vs->bo), vs->shader, vs->shader_size);
 252       ralloc_free(vs->shader);
 253       vs->shader = NULL;
 254    }
 255
 256    return true;
 257 }
 258
 259 bool
 260 lima_update_fs_state(struct lima_context *ctx)
 261 {
 262    struct lima_fs_shader_state *fs = ctx->fs;
 263    if (!fs->bo) {
 264       struct lima_screen *screen = lima_screen(ctx->base.screen);
 265       fs->bo = lima_bo_create(screen, fs->shader_size, 0);
 266       if (!fs->bo) {
 267          fprintf(stderr, "lima: create fs shader bo fail\n");
 268          return false;
 269       }
 270
 271       memcpy(lima_bo_map(fs->bo), fs->shader, fs->shader_size);
 272       ralloc_free(fs->shader);
 273       fs->shader = NULL;
 274    }
 275
 276    return true;
 277 }
 278
 279 static void *
 280 lima_create_vs_state(struct pipe_context *pctx,
 281                      const struct pipe_shader_state *cso)
 282 {
 283    struct lima_vs_shader_state *so = rzalloc(NULL, struct lima_vs_shader_state);
 284
 285    if (!so)
 286       return NULL;
 287
 288    nir_shader *nir;
 289    if (cso->type == PIPE_SHADER_IR_NIR)
 290       nir = cso->ir.nir;
 291    else {
 292       assert(cso->type == PIPE_SHADER_IR_TGSI);
 293
 294       nir = tgsi_to_nir(cso->tokens, pctx->screen);
 295    }
 296
 297    lima_program_optimize_vs_nir(nir);
 298
 299    if (lima_debug & LIMA_DEBUG_GP)
 300       nir_print_shader(nir, stdout);
 301
 302    if (!gpir_compile_nir(so, nir)) {
 303       ralloc_free(so);
 304       return NULL;
 305    }
 306
 307    return so;
 308 }
 309
 310 static void
 311 lima_bind_vs_state(struct pipe_context *pctx, void *hwcso)
 312 {
 313    struct lima_context *ctx = lima_context(pctx);
 314
 315    ctx->vs = hwcso;
 316    ctx->dirty |= LIMA_CONTEXT_DIRTY_SHADER_VERT;
 317 }
 318
 319 static void
 320 lima_delete_vs_state(struct pipe_context *pctx, void *hwcso)
 321 {
 322    struct lima_vs_shader_state *so = hwcso;
 323
 324    if (so->bo)
 325       lima_bo_free(so->bo);
 326
 327    ralloc_free(so);
 328 }
 329
 330 void
 331 lima_program_init(struct lima_context *ctx)
 332 {
 333    ctx->base.create_fs_state = lima_create_fs_state;
 334    ctx->base.bind_fs_state = lima_bind_fs_state;
 335    ctx->base.delete_fs_state = lima_delete_fs_state;
 336
 337    ctx->base.create_vs_state = lima_create_vs_state;
 338    ctx->base.bind_vs_state = lima_bind_vs_state;
 339    ctx->base.delete_vs_state = lima_delete_vs_state;
 340 }