src/gallium/drivers/zink/zink_program.c

   1 /*
   2  * Copyright 2018 Collabora Ltd.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * 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 AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "zink_program.h"
  25
  26 #include "zink_compiler.h"
  27 #include "zink_context.h"
  28 #include "zink_render_pass.h"
  29 #include "zink_screen.h"
  30
  31 #include "util/hash_table.h"
  32 #include "util/set.h"
  33 #include "util/u_debug.h"
  34 #include "util/u_memory.h"
  35 #include "tgsi/tgsi_from_mesa.h"
  36
  37 struct pipeline_cache_entry {
  38    struct zink_gfx_pipeline_state state;
  39    VkPipeline pipeline;
  40 };
  41
  42 void
  43 debug_describe_zink_gfx_program(char *buf, const struct zink_gfx_program *ptr)
  44 {
  45    sprintf(buf, "zink_gfx_program");
  46 }
  47
  48 static void
  49 debug_describe_zink_shader_module(char *buf, const struct zink_shader_module *ptr)
  50 {
  51    sprintf(buf, "zink_shader_module");
  52 }
  53
  54 static VkDescriptorSetLayout
  55 create_desc_set_layout(VkDevice dev,
  56                        struct zink_shader *stages[ZINK_SHADER_COUNT],
  57                        unsigned *num_descriptors)
  58 {
  59    VkDescriptorSetLayoutBinding bindings[PIPE_SHADER_TYPES * PIPE_MAX_CONSTANT_BUFFERS];
  60    int num_bindings = 0;
  61
  62    for (int i = 0; i < ZINK_SHADER_COUNT; i++) {
  63       struct zink_shader *shader = stages[i];
  64       if (!shader)
  65          continue;
  66
  67       VkShaderStageFlagBits stage_flags = zink_shader_stage(i);
  68       for (int j = 0; j < shader->num_bindings; j++) {
  69          assert(num_bindings < ARRAY_SIZE(bindings));
  70          bindings[num_bindings].binding = shader->bindings[j].binding;
  71          bindings[num_bindings].descriptorType = shader->bindings[j].type;
  72          bindings[num_bindings].descriptorCount = 1;
  73          bindings[num_bindings].stageFlags = stage_flags;
  74          bindings[num_bindings].pImmutableSamplers = NULL;
  75          ++num_bindings;
  76       }
  77    }
  78
  79    VkDescriptorSetLayoutCreateInfo dcslci = {};
  80    dcslci.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
  81    dcslci.pNext = NULL;
  82    dcslci.flags = 0;
  83    dcslci.bindingCount = num_bindings;
  84    dcslci.pBindings = bindings;
  85
  86    VkDescriptorSetLayout dsl;
  87    if (vkCreateDescriptorSetLayout(dev, &dcslci, 0, &dsl) != VK_SUCCESS) {
  88       debug_printf("vkCreateDescriptorSetLayout failed\n");
  89       return VK_NULL_HANDLE;
  90    }
  91
  92    *num_descriptors = num_bindings;
  93    return dsl;
  94 }
  95
  96 static VkPipelineLayout
  97 create_pipeline_layout(VkDevice dev, VkDescriptorSetLayout dsl)
  98 {
  99    assert(dsl != VK_NULL_HANDLE);
 100
 101    VkPipelineLayoutCreateInfo plci = {};
 102    plci.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO;
 103
 104    plci.pSetLayouts = &dsl;
 105    plci.setLayoutCount = 1;
 106
 107    VkPipelineLayout layout;
 108    if (vkCreatePipelineLayout(dev, &plci, NULL, &layout) != VK_SUCCESS) {
 109       debug_printf("vkCreatePipelineLayout failed!\n");
 110       return VK_NULL_HANDLE;
 111    }
 112
 113    return layout;
 114 }
 115
 116 static void
 117 zink_destroy_shader_module(struct zink_screen *screen, struct zink_shader_module *zm)
 118 {
 119    vkDestroyShaderModule(screen->dev, zm->shader, NULL);
 120    free(zm);
 121 }
 122
 123 static inline void
 124 zink_shader_module_reference(struct zink_screen *screen,
 125                            struct zink_shader_module **dst,
 126                            struct zink_shader_module *src)
 127 {
 128    struct zink_shader_module *old_dst = dst ? *dst : NULL;
 129
 130    if (pipe_reference_described(old_dst ? &old_dst->reference : NULL, &src->reference,
 131                                 (debug_reference_descriptor)debug_describe_zink_shader_module))
 132       zink_destroy_shader_module(screen, old_dst);
 133    if (dst) *dst = src;
 134 }
 135
 136 static void
 137 update_shader_modules(struct zink_context *ctx, struct zink_shader *stages[ZINK_SHADER_COUNT], struct zink_gfx_program *prog)
 138 {
 139    struct zink_shader *dirty[ZINK_SHADER_COUNT] = {NULL};
 140
 141    unsigned dirty_shader_stages = ctx->dirty_shader_stages;
 142    while (dirty_shader_stages) {
 143       unsigned type = u_bit_scan(&dirty_shader_stages);
 144       dirty[type] = stages[type];
 145    }
 146    for (int i = 0; i < ZINK_SHADER_COUNT; ++i) {
 147       if (dirty[i]) {
 148          prog->stages[i] = CALLOC_STRUCT(zink_shader_module);
 149          assert(prog->stages[i]);
 150          pipe_reference_init(&prog->stages[i]->reference, 1);
 151          prog->stages[i]->shader = zink_shader_compile(zink_screen(ctx->base.screen), stages[i]);
 152       } else if (stages[i]) /* reuse existing shader module */
 153          zink_shader_module_reference(zink_screen(ctx->base.screen), &prog->stages[i], ctx->curr_program->stages[i]);
 154       prog->shaders[i] = stages[i];
 155    }
 156    ctx->dirty_shader_stages = 0;
 157 }
 158
 159 static uint32_t
 160 hash_gfx_pipeline_state(const void *key)
 161 {
 162    return _mesa_hash_data(key, sizeof(struct zink_gfx_pipeline_state));
 163 }
 164
 165 static bool
 166 equals_gfx_pipeline_state(const void *a, const void *b)
 167 {
 168    return memcmp(a, b, sizeof(struct zink_gfx_pipeline_state)) == 0;
 169 }
 170
 171 struct zink_gfx_program *
 172 zink_create_gfx_program(struct zink_context *ctx,
 173                         struct zink_shader *stages[ZINK_SHADER_COUNT])
 174 {
 175    struct zink_screen *screen = zink_screen(ctx->base.screen);
 176    struct zink_gfx_program *prog = CALLOC_STRUCT(zink_gfx_program);
 177    if (!prog)
 178       goto fail;
 179
 180    pipe_reference_init(&prog->reference, 1);
 181
 182    update_shader_modules(ctx, stages, prog);
 183
 184    for (int i = 0; i < ARRAY_SIZE(prog->pipelines); ++i) {
 185       prog->pipelines[i] = _mesa_hash_table_create(NULL,
 186                                                    hash_gfx_pipeline_state,
 187                                                    equals_gfx_pipeline_state);
 188       if (!prog->pipelines[i])
 189          goto fail;
 190    }
 191
 192    for (int i = 0; i < ZINK_SHADER_COUNT; ++i) {
 193       if (prog->stages[i]) {
 194          _mesa_set_add(stages[i]->programs, prog);
 195          zink_gfx_program_reference(screen, NULL, prog);
 196       }
 197    }
 198
 199    prog->dsl = create_desc_set_layout(screen->dev, stages,
 200                                       &prog->num_descriptors);
 201    if (!prog->dsl)
 202       goto fail;
 203
 204    prog->layout = create_pipeline_layout(screen->dev, prog->dsl);
 205    if (!prog->layout)
 206       goto fail;
 207
 208    prog->render_passes = _mesa_set_create(NULL, _mesa_hash_pointer,
 209                                           _mesa_key_pointer_equal);
 210    if (!prog->render_passes)
 211       goto fail;
 212
 213    return prog;
 214
 215 fail:
 216    if (prog)
 217       zink_destroy_gfx_program(screen, prog);
 218    return NULL;
 219 }
 220
 221 static void
 222 gfx_program_remove_shader(struct zink_gfx_program *prog, struct zink_shader *shader)
 223 {
 224    enum pipe_shader_type p_stage = pipe_shader_type_from_mesa(shader->nir->info.stage);
 225
 226    assert(prog->shaders[p_stage] == shader);
 227    prog->shaders[p_stage] = NULL;
 228    _mesa_set_remove_key(shader->programs, prog);
 229 }
 230
 231 void
 232 zink_destroy_gfx_program(struct zink_screen *screen,
 233                          struct zink_gfx_program *prog)
 234 {
 235    if (prog->layout)
 236       vkDestroyPipelineLayout(screen->dev, prog->layout, NULL);
 237
 238    if (prog->dsl)
 239       vkDestroyDescriptorSetLayout(screen->dev, prog->dsl, NULL);
 240
 241    for (int i = 0; i < ZINK_SHADER_COUNT; ++i) {
 242       if (prog->shaders[i])
 243          gfx_program_remove_shader(prog, prog->shaders[i]);
 244       if (prog->stages[i])
 245          zink_shader_module_reference(screen, &prog->stages[i], NULL);
 246    }
 247
 248    /* unref all used render-passes */
 249    if (prog->render_passes) {
 250       set_foreach(prog->render_passes, entry) {
 251          struct zink_render_pass *pres = (struct zink_render_pass *)entry->key;
 252          zink_render_pass_reference(screen, &pres, NULL);
 253       }
 254       _mesa_set_destroy(prog->render_passes, NULL);
 255    }
 256
 257    for (int i = 0; i < ARRAY_SIZE(prog->pipelines); ++i) {
 258       hash_table_foreach(prog->pipelines[i], entry) {
 259          struct pipeline_cache_entry *pc_entry = entry->data;
 260
 261          vkDestroyPipeline(screen->dev, pc_entry->pipeline, NULL);
 262          free(pc_entry);
 263       }
 264       _mesa_hash_table_destroy(prog->pipelines[i], NULL);
 265    }
 266
 267    FREE(prog);
 268 }
 269
 270 static VkPrimitiveTopology
 271 primitive_topology(enum pipe_prim_type mode)
 272 {
 273    switch (mode) {
 274    case PIPE_PRIM_POINTS:
 275       return VK_PRIMITIVE_TOPOLOGY_POINT_LIST;
 276
 277    case PIPE_PRIM_LINES:
 278       return VK_PRIMITIVE_TOPOLOGY_LINE_LIST;
 279
 280    case PIPE_PRIM_LINE_STRIP:
 281       return VK_PRIMITIVE_TOPOLOGY_LINE_STRIP;
 282
 283    case PIPE_PRIM_TRIANGLES:
 284       return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST;
 285
 286    case PIPE_PRIM_TRIANGLE_STRIP:
 287       return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP;
 288
 289    case PIPE_PRIM_TRIANGLE_FAN:
 290       return VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN;
 291
 292    default:
 293       unreachable("unexpected enum pipe_prim_type");
 294    }
 295 }
 296
 297 static void
 298 reference_render_pass(struct zink_screen *screen,
 299                       struct zink_gfx_program *prog,
 300                       struct zink_render_pass *render_pass)
 301 {
 302    struct set_entry *entry = _mesa_set_search(prog->render_passes,
 303                                               render_pass);
 304    if (!entry) {
 305       entry = _mesa_set_add(prog->render_passes, render_pass);
 306       pipe_reference(NULL, &render_pass->reference);
 307    }
 308 }
 309
 310 VkPipeline
 311 zink_get_gfx_pipeline(struct zink_screen *screen,
 312                       struct zink_gfx_program *prog,
 313                       struct zink_gfx_pipeline_state *state,
 314                       enum pipe_prim_type mode)
 315 {
 316    assert(mode <= ARRAY_SIZE(prog->pipelines));
 317
 318    /* TODO: use pre-hashed versions to save some time (can re-hash only when
 319       state changes) */
 320    struct hash_entry *entry = _mesa_hash_table_search(prog->pipelines[mode], state);
 321    if (!entry) {
 322       VkPrimitiveTopology vkmode = primitive_topology(mode);
 323       VkPipeline pipeline = zink_create_gfx_pipeline(screen, prog,
 324                                                      state, vkmode);
 325       if (pipeline == VK_NULL_HANDLE)
 326          return VK_NULL_HANDLE;
 327
 328       struct pipeline_cache_entry *pc_entry = CALLOC_STRUCT(pipeline_cache_entry);
 329       if (!pc_entry)
 330          return VK_NULL_HANDLE;
 331
 332       memcpy(&pc_entry->state, state, sizeof(*state));
 333       pc_entry->pipeline = pipeline;
 334
 335       entry = _mesa_hash_table_insert(prog->pipelines[mode], &pc_entry->state, pc_entry);
 336       assert(entry);
 337
 338       reference_render_pass(screen, prog, state->render_pass);
 339    }
 340
 341    return ((struct pipeline_cache_entry *)(entry->data))->pipeline;
 342 }
 343
 344
 345 static void *
 346 zink_create_vs_state(struct pipe_context *pctx,
 347                      const struct pipe_shader_state *shader)
 348 {
 349    struct nir_shader *nir;
 350    if (shader->type != PIPE_SHADER_IR_NIR)
 351       nir = zink_tgsi_to_nir(pctx->screen, shader->tokens);
 352    else
 353       nir = (struct nir_shader *)shader->ir.nir;
 354
 355    return zink_shader_create(zink_screen(pctx->screen), nir, &shader->stream_output);
 356 }
 357
 358 static void
 359 bind_stage(struct zink_context *ctx, enum pipe_shader_type stage,
 360            struct zink_shader *shader)
 361 {
 362    assert(stage < PIPE_SHADER_COMPUTE);
 363    ctx->gfx_stages[stage] = shader;
 364    ctx->dirty_shader_stages |= 1 << stage;
 365 }
 366
 367 static void
 368 zink_bind_vs_state(struct pipe_context *pctx,
 369                    void *cso)
 370 {
 371    bind_stage(zink_context(pctx), PIPE_SHADER_VERTEX, cso);
 372 }
 373
 374 static void
 375 zink_delete_vs_state(struct pipe_context *pctx,
 376                      void *cso)
 377 {
 378    zink_shader_free(zink_context(pctx), cso);
 379 }
 380
 381 static void *
 382 zink_create_fs_state(struct pipe_context *pctx,
 383                      const struct pipe_shader_state *shader)
 384 {
 385    struct nir_shader *nir;
 386    if (shader->type != PIPE_SHADER_IR_NIR)
 387       nir = zink_tgsi_to_nir(pctx->screen, shader->tokens);
 388    else
 389       nir = (struct nir_shader *)shader->ir.nir;
 390
 391    return zink_shader_create(zink_screen(pctx->screen), nir, NULL);
 392 }
 393
 394 static void
 395 zink_bind_fs_state(struct pipe_context *pctx,
 396                    void *cso)
 397 {
 398    bind_stage(zink_context(pctx), PIPE_SHADER_FRAGMENT, cso);
 399 }
 400
 401 static void
 402 zink_delete_fs_state(struct pipe_context *pctx,
 403                      void *cso)
 404 {
 405    zink_shader_free(zink_context(pctx), cso);
 406 }
 407
 408
 409 void
 410 zink_program_init(struct zink_context *ctx)
 411 {
 412    ctx->base.create_vs_state = zink_create_vs_state;
 413    ctx->base.bind_vs_state = zink_bind_vs_state;
 414    ctx->base.delete_vs_state = zink_delete_vs_state;
 415
 416    ctx->base.create_fs_state = zink_create_fs_state;
 417    ctx->base.bind_fs_state = zink_bind_fs_state;
 418    ctx->base.delete_fs_state = zink_delete_fs_state;
 419 }