src/gallium/drivers/ilo/ilo_render.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "genhw/genhw.h"
  29 #include "core/ilo_builder.h"
  30 #include "core/ilo_builder_mi.h"
  31 #include "core/ilo_builder_render.h"
  32 #include "core/intel_winsys.h"
  33 #include "util/u_prim.h"
  34
  35 #include "ilo_query.h"
  36 #include "ilo_render_gen.h"
  37
  38 struct ilo_render *
  39 ilo_render_create(struct ilo_builder *builder)
  40 {
  41    struct ilo_render *render;
  42
  43    render = CALLOC_STRUCT(ilo_render);
  44    if (!render)
  45       return NULL;
  46
  47    render->dev = builder->dev;
  48    render->builder = builder;
  49
  50    render->workaround_bo = intel_winsys_alloc_bo(builder->winsys,
  51          "PIPE_CONTROL workaround", 4096, false);
  52    if (!render->workaround_bo) {
  53       ilo_warn("failed to allocate PIPE_CONTROL workaround bo\n");
  54       FREE(render);
  55       return NULL;
  56    }
  57
  58    ilo_state_sample_pattern_init_default(&render->sample_pattern,
  59          render->dev);
  60
  61    ilo_render_invalidate_hw(render);
  62    ilo_render_invalidate_builder(render);
  63
  64    return render;
  65 }
  66
  67 void
  68 ilo_render_destroy(struct ilo_render *render)
  69 {
  70    intel_bo_unref(render->vs_scratch.bo);
  71    intel_bo_unref(render->gs_scratch.bo);
  72    intel_bo_unref(render->fs_scratch.bo);
  73
  74    intel_bo_unref(render->workaround_bo);
  75    FREE(render);
  76 }
  77
  78 static bool
  79 resize_scratch_space(struct ilo_render *render,
  80                      struct ilo_render_scratch_space *scratch,
  81                      const char *name, int new_size)
  82 {
  83    struct intel_bo *bo;
  84
  85    if (scratch->size >= new_size)
  86       return true;
  87
  88    bo = intel_winsys_alloc_bo(render->builder->winsys, name, new_size, false);
  89    if (!bo)
  90       return false;
  91
  92    intel_bo_unref(scratch->bo);
  93    scratch->bo = bo;
  94    scratch->size = new_size;
  95
  96    return true;
  97 }
  98
  99 bool
 100 ilo_render_prepare_scratch_spaces(struct ilo_render *render,
 101                                   int vs_scratch_size,
 102                                   int gs_scratch_size,
 103                                   int fs_scratch_size)
 104 {
 105    return (resize_scratch_space(render, &render->vs_scratch,
 106             "vs scratch", vs_scratch_size) &&
 107            resize_scratch_space(render, &render->gs_scratch,
 108             "gs scratch", gs_scratch_size) &&
 109            resize_scratch_space(render, &render->fs_scratch,
 110             "fs scratch", fs_scratch_size));
 111 }
 112
 113 void
 114 ilo_render_get_sample_position(const struct ilo_render *render,
 115                                unsigned sample_count,
 116                                unsigned sample_index,
 117                                float *x, float *y)
 118 {
 119    uint8_t off_x, off_y;
 120
 121    ilo_state_sample_pattern_get_offset(&render->sample_pattern, render->dev,
 122          sample_count, sample_index, &off_x, &off_y);
 123
 124    *x = (float) off_x / 16.0f;
 125    *y = (float) off_y / 16.0f;
 126 }
 127
 128 void
 129 ilo_render_invalidate_hw(struct ilo_render *render)
 130 {
 131    render->hw_ctx_changed = true;
 132 }
 133
 134 void
 135 ilo_render_invalidate_builder(struct ilo_render *render)
 136 {
 137    render->batch_bo_changed = true;
 138    render->state_bo_changed = true;
 139    render->instruction_bo_changed = true;
 140
 141    /* Kernel flushes everything.  Shouldn't we set all bits here? */
 142    render->state.current_pipe_control_dw1 = 0;
 143 }
 144
 145 /**
 146  * Return the command length of ilo_render_emit_flush().
 147  */
 148 int
 149 ilo_render_get_flush_len(const struct ilo_render *render)
 150 {
 151    int len;
 152
 153    ILO_DEV_ASSERT(render->dev, 6, 8);
 154
 155    len = GEN6_PIPE_CONTROL__SIZE;
 156
 157    /* plus gen6_wa_pre_pipe_control() */
 158    if (ilo_dev_gen(render->dev) == ILO_GEN(6))
 159       len *= 3;
 160
 161    return len;
 162 }
 163
 164 /**
 165  * Emit PIPE_CONTROLs to flush all caches.
 166  */
 167 void
 168 ilo_render_emit_flush(struct ilo_render *render)
 169 {
 170    const uint32_t dw1 = GEN6_PIPE_CONTROL_INSTRUCTION_CACHE_INVALIDATE |
 171                         GEN6_PIPE_CONTROL_RENDER_CACHE_FLUSH |
 172                         GEN6_PIPE_CONTROL_DEPTH_CACHE_FLUSH |
 173                         GEN6_PIPE_CONTROL_VF_CACHE_INVALIDATE |
 174                         GEN6_PIPE_CONTROL_TEXTURE_CACHE_INVALIDATE |
 175                         GEN6_PIPE_CONTROL_CS_STALL;
 176    const unsigned batch_used = ilo_builder_batch_used(render->builder);
 177
 178    ILO_DEV_ASSERT(render->dev, 6, 8);
 179
 180    if (ilo_dev_gen(render->dev) == ILO_GEN(6))
 181       gen6_wa_pre_pipe_control(render, dw1);
 182
 183    ilo_render_pipe_control(render, dw1);
 184
 185    assert(ilo_builder_batch_used(render->builder) <= batch_used +
 186          ilo_render_get_flush_len(render));
 187 }
 188
 189 /**
 190  * Return the command length of ilo_render_emit_query().
 191  */
 192 int
 193 ilo_render_get_query_len(const struct ilo_render *render,
 194                          unsigned query_type)
 195 {
 196    int len;
 197
 198    ILO_DEV_ASSERT(render->dev, 6, 8);
 199
 200    /* always a flush or a variant of flush */
 201    len = ilo_render_get_flush_len(render);
 202
 203    switch (query_type) {
 204    case PIPE_QUERY_OCCLUSION_COUNTER:
 205    case PIPE_QUERY_TIMESTAMP:
 206    case PIPE_QUERY_TIME_ELAPSED:
 207       /* no reg */
 208       break;
 209    case PIPE_QUERY_PRIMITIVES_GENERATED:
 210    case PIPE_QUERY_PRIMITIVES_EMITTED:
 211       len += GEN6_MI_STORE_REGISTER_MEM__SIZE * 2;
 212       break;
 213    case PIPE_QUERY_PIPELINE_STATISTICS:
 214       {
 215          const int num_regs =
 216             (ilo_dev_gen(render->dev) >= ILO_GEN(7)) ? 10 : 8;
 217          const int num_pads =
 218             (ilo_dev_gen(render->dev) >= ILO_GEN(7)) ? 1 : 3;
 219
 220          len += GEN6_MI_STORE_REGISTER_MEM__SIZE * 2 * num_regs +
 221                 GEN6_MI_STORE_DATA_IMM__SIZE * num_pads;
 222       }
 223       break;
 224    default:
 225       len = 0;
 226       break;
 227    }
 228
 229    return len;
 230 }
 231
 232 /**
 233  * Emit PIPE_CONTROLs or MI_STORE_REGISTER_MEMs to store register values.
 234  */
 235 void
 236 ilo_render_emit_query(struct ilo_render *render,
 237                       struct ilo_query *q, uint32_t offset)
 238 {
 239    const uint32_t pipeline_statistics_regs[11] = {
 240       GEN6_REG_IA_VERTICES_COUNT,
 241       GEN6_REG_IA_PRIMITIVES_COUNT,
 242       GEN6_REG_VS_INVOCATION_COUNT,
 243       GEN6_REG_GS_INVOCATION_COUNT,
 244       GEN6_REG_GS_PRIMITIVES_COUNT,
 245       GEN6_REG_CL_INVOCATION_COUNT,
 246       GEN6_REG_CL_PRIMITIVES_COUNT,
 247       GEN6_REG_PS_INVOCATION_COUNT,
 248       (ilo_dev_gen(render->dev) >= ILO_GEN(7)) ?
 249          GEN7_REG_HS_INVOCATION_COUNT : 0,
 250       (ilo_dev_gen(render->dev) >= ILO_GEN(7)) ?
 251          GEN7_REG_DS_INVOCATION_COUNT : 0,
 252       0,
 253    };
 254    const uint32_t primitives_generated_reg =
 255       (ilo_dev_gen(render->dev) >= ILO_GEN(7) && q->index > 0) ?
 256       GEN7_REG_SO_PRIM_STORAGE_NEEDED(q->index) :
 257       GEN6_REG_CL_INVOCATION_COUNT;
 258    const uint32_t primitives_emitted_reg =
 259       (ilo_dev_gen(render->dev) >= ILO_GEN(7)) ?
 260       GEN7_REG_SO_NUM_PRIMS_WRITTEN(q->index) :
 261       GEN6_REG_SO_NUM_PRIMS_WRITTEN;
 262    const unsigned batch_used = ilo_builder_batch_used(render->builder);
 263    const uint32_t *regs;
 264    int reg_count = 0, i;
 265    uint32_t pipe_control_dw1 = 0;
 266
 267    ILO_DEV_ASSERT(render->dev, 6, 8);
 268
 269    switch (q->type) {
 270    case PIPE_QUERY_OCCLUSION_COUNTER:
 271       pipe_control_dw1 = GEN6_PIPE_CONTROL_DEPTH_STALL |
 272                          GEN6_PIPE_CONTROL_WRITE_PS_DEPTH_COUNT;
 273       break;
 274    case PIPE_QUERY_TIMESTAMP:
 275    case PIPE_QUERY_TIME_ELAPSED:
 276       pipe_control_dw1 = GEN6_PIPE_CONTROL_WRITE_TIMESTAMP;
 277       break;
 278    case PIPE_QUERY_PRIMITIVES_GENERATED:
 279       regs = &primitives_generated_reg;
 280       reg_count = 1;
 281       break;
 282    case PIPE_QUERY_PRIMITIVES_EMITTED:
 283       regs = &primitives_emitted_reg;
 284       reg_count = 1;
 285       break;
 286    case PIPE_QUERY_PIPELINE_STATISTICS:
 287       regs = pipeline_statistics_regs;
 288       reg_count = Elements(pipeline_statistics_regs);
 289       break;
 290    default:
 291       break;
 292    }
 293
 294    if (pipe_control_dw1) {
 295       assert(!reg_count);
 296
 297       if (ilo_dev_gen(render->dev) == ILO_GEN(6))
 298          gen6_wa_pre_pipe_control(render, pipe_control_dw1);
 299
 300       gen6_PIPE_CONTROL(render->builder, pipe_control_dw1, q->bo, offset, 0);
 301
 302       render->state.current_pipe_control_dw1 |= pipe_control_dw1;
 303       render->state.deferred_pipe_control_dw1 &= ~pipe_control_dw1;
 304    } else if (reg_count) {
 305       ilo_render_emit_flush(render);
 306    }
 307
 308    for (i = 0; i < reg_count; i++) {
 309       if (regs[i]) {
 310          /* store lower 32 bits */
 311          gen6_MI_STORE_REGISTER_MEM(render->builder, regs[i], q->bo, offset);
 312          /* store higher 32 bits */
 313          gen6_MI_STORE_REGISTER_MEM(render->builder, regs[i] + 4,
 314                q->bo, offset + 4);
 315       } else {
 316          gen6_MI_STORE_DATA_IMM(render->builder, q->bo, offset, 0);
 317       }
 318
 319       offset += 8;
 320    }
 321
 322    assert(ilo_builder_batch_used(render->builder) <= batch_used +
 323          ilo_render_get_query_len(render, q->type));
 324 }
 325
 326 int
 327 ilo_render_get_rectlist_len(const struct ilo_render *render,
 328                             const struct ilo_blitter *blitter)
 329 {
 330    ILO_DEV_ASSERT(render->dev, 6, 8);
 331
 332    return ilo_render_get_rectlist_dynamic_states_len(render, blitter) +
 333           ilo_render_get_rectlist_commands_len(render, blitter);
 334 }
 335
 336 void
 337 ilo_render_emit_rectlist(struct ilo_render *render,
 338                          const struct ilo_blitter *blitter)
 339 {
 340    struct ilo_render_rectlist_session session;
 341
 342    ILO_DEV_ASSERT(render->dev, 6, 8);
 343
 344    memset(&session, 0, sizeof(session));
 345    ilo_render_emit_rectlist_dynamic_states(render, blitter, &session);
 346    ilo_render_emit_rectlist_commands(render, blitter, &session);
 347 }
 348
 349 int
 350 ilo_render_get_draw_len(const struct ilo_render *render,
 351                         const struct ilo_state_vector *vec)
 352 {
 353    ILO_DEV_ASSERT(render->dev, 6, 8);
 354
 355    return ilo_render_get_draw_dynamic_states_len(render, vec) +
 356           ilo_render_get_draw_surface_states_len(render, vec) +
 357           ilo_render_get_draw_commands_len(render, vec);
 358 }
 359
 360 static void
 361 draw_session_prepare(struct ilo_render *render,
 362                      const struct ilo_state_vector *vec,
 363                      struct ilo_render_draw_session *session)
 364 {
 365    memset(session, 0, sizeof(*session));
 366    session->pipe_dirty = vec->dirty;
 367    session->reduced_prim = u_reduced_prim(vec->draw->mode);
 368
 369    if (render->hw_ctx_changed) {
 370       /* these should be enough to make everything uploaded */
 371       render->batch_bo_changed = true;
 372       render->state_bo_changed = true;
 373       render->instruction_bo_changed = true;
 374
 375       session->prim_changed = true;
 376
 377       ilo_state_urb_full_delta(&vec->urb, render->dev, &session->urb_delta);
 378       ilo_state_vf_full_delta(&vec->ve->vf, render->dev, &session->vf_delta);
 379
 380       ilo_state_raster_full_delta(&vec->rasterizer->rs, render->dev,
 381             &session->rs_delta);
 382
 383       ilo_state_viewport_full_delta(&vec->viewport.vp, render->dev,
 384             &session->vp_delta);
 385
 386       ilo_state_cc_full_delta(&vec->blend->cc, render->dev,
 387             &session->cc_delta);
 388    } else {
 389       session->prim_changed =
 390          (render->state.reduced_prim != session->reduced_prim);
 391
 392       ilo_state_urb_get_delta(&vec->urb, render->dev,
 393             &render->state.urb, &session->urb_delta);
 394
 395       if (vec->dirty & ILO_DIRTY_VE) {
 396          ilo_state_vf_full_delta(&vec->ve->vf, render->dev,
 397                &session->vf_delta);
 398       }
 399
 400       if (vec->dirty & ILO_DIRTY_RASTERIZER) {
 401          ilo_state_raster_get_delta(&vec->rasterizer->rs, render->dev,
 402                &render->state.rs, &session->rs_delta);
 403       }
 404
 405       if (vec->dirty & ILO_DIRTY_VIEWPORT) {
 406          ilo_state_viewport_full_delta(&vec->viewport.vp, render->dev,
 407                &session->vp_delta);
 408       }
 409
 410       if (vec->dirty & ILO_DIRTY_BLEND) {
 411          ilo_state_cc_get_delta(&vec->blend->cc, render->dev,
 412                &render->state.cc, &session->cc_delta);
 413       }
 414    }
 415 }
 416
 417 static void
 418 draw_session_end(struct ilo_render *render,
 419                  const struct ilo_state_vector *vec,
 420                  struct ilo_render_draw_session *session)
 421 {
 422    render->hw_ctx_changed = false;
 423
 424    render->batch_bo_changed = false;
 425    render->state_bo_changed = false;
 426    render->instruction_bo_changed = false;
 427
 428    render->state.reduced_prim = session->reduced_prim;
 429
 430    render->state.urb = vec->urb;
 431    render->state.rs = vec->rasterizer->rs;
 432    render->state.cc = vec->blend->cc;
 433 }
 434
 435 void
 436 ilo_render_emit_draw(struct ilo_render *render,
 437                      const struct ilo_state_vector *vec)
 438 {
 439    struct ilo_render_draw_session session;
 440
 441    ILO_DEV_ASSERT(render->dev, 6, 8);
 442
 443    draw_session_prepare(render, vec, &session);
 444
 445    /* force all states to be uploaded if the state bo changed */
 446    if (render->state_bo_changed)
 447       session.pipe_dirty = ILO_DIRTY_ALL;
 448    else
 449       session.pipe_dirty = vec->dirty;
 450
 451    ilo_render_emit_draw_dynamic_states(render, vec, &session);
 452    ilo_render_emit_draw_surface_states(render, vec, &session);
 453
 454    /* force all commands to be uploaded if the HW context changed */
 455    if (render->hw_ctx_changed)
 456       session.pipe_dirty = ILO_DIRTY_ALL;
 457    else
 458       session.pipe_dirty = vec->dirty;
 459
 460    ilo_render_emit_draw_commands(render, vec, &session);
 461
 462    draw_session_end(render, vec, &session);
 463 }
 464
 465 int
 466 ilo_render_get_launch_grid_len(const struct ilo_render *render,
 467                                const struct ilo_state_vector *vec)
 468 {
 469    ILO_DEV_ASSERT(render->dev, 7, 7.5);
 470
 471    return ilo_render_get_launch_grid_surface_states_len(render, vec) +
 472           ilo_render_get_launch_grid_dynamic_states_len(render, vec) +
 473           ilo_render_get_launch_grid_commands_len(render, vec);
 474 }
 475
 476 void
 477 ilo_render_emit_launch_grid(struct ilo_render *render,
 478                             const struct ilo_state_vector *vec,
 479                             const unsigned thread_group_offset[3],
 480                             const unsigned thread_group_dim[3],
 481                             unsigned thread_group_size,
 482                             const struct pipe_constant_buffer *input,
 483                             uint32_t pc)
 484 {
 485    struct ilo_render_launch_grid_session session;
 486
 487    ILO_DEV_ASSERT(render->dev, 7, 7.5);
 488
 489    assert(input->buffer);
 490
 491    memset(&session, 0, sizeof(session));
 492
 493    session.thread_group_offset = thread_group_offset;
 494    session.thread_group_dim = thread_group_dim;
 495    session.thread_group_size = thread_group_size;
 496    session.input = input;
 497    session.pc = pc;
 498
 499    ilo_render_emit_launch_grid_surface_states(render, vec, &session);
 500    ilo_render_emit_launch_grid_dynamic_states(render, vec, &session);
 501    ilo_render_emit_launch_grid_commands(render, vec, &session);
 502 }