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