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