src/gallium/drivers/panfrost/pan_job.c

   1 /*
   2  * Copyright (C) 2019 Alyssa Rosenzweig
   3  * Copyright (C) 2014-2017 Broadcom
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * 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 FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  */
  25
  26 #include <assert.h>
  27
  28 #include "drm-uapi/panfrost_drm.h"
  29
  30 #include "pan_bo.h"
  31 #include "pan_context.h"
  32 #include "util/hash_table.h"
  33 #include "util/ralloc.h"
  34 #include "util/u_format.h"
  35 #include "util/u_pack_color.h"
  36 #include "pan_util.h"
  37 #include "pandecode/decode.h"
  38
  39 static struct panfrost_batch *
  40 panfrost_create_batch(struct panfrost_context *ctx,
  41                       const struct pipe_framebuffer_state *key)
  42 {
  43         struct panfrost_batch *batch = rzalloc(ctx, struct panfrost_batch);
  44
  45         batch->ctx = ctx;
  46
  47         batch->bos = _mesa_set_create(batch,
  48                                       _mesa_hash_pointer,
  49                                       _mesa_key_pointer_equal);
  50
  51         batch->minx = batch->miny = ~0;
  52         batch->maxx = batch->maxy = 0;
  53         batch->transient_offset = 0;
  54
  55         util_dynarray_init(&batch->headers, batch);
  56         util_dynarray_init(&batch->gpu_headers, batch);
  57         util_copy_framebuffer_state(&batch->key, key);
  58
  59         return batch;
  60 }
  61
  62 static void
  63 panfrost_free_batch(struct panfrost_batch *batch)
  64 {
  65         if (!batch)
  66                 return;
  67
  68         struct panfrost_context *ctx = batch->ctx;
  69
  70         set_foreach(batch->bos, entry) {
  71                 struct panfrost_bo *bo = (struct panfrost_bo *)entry->key;
  72                 panfrost_bo_unreference(bo);
  73         }
  74
  75         _mesa_hash_table_remove_key(ctx->batches, &batch->key);
  76
  77         if (ctx->batch == batch)
  78                 ctx->batch = NULL;
  79
  80         util_unreference_framebuffer_state(&batch->key);
  81         ralloc_free(batch);
  82 }
  83
  84 static struct panfrost_batch *
  85 panfrost_get_batch(struct panfrost_context *ctx,
  86                    const struct pipe_framebuffer_state *key)
  87 {
  88         /* Lookup the job first */
  89         struct hash_entry *entry = _mesa_hash_table_search(ctx->batches, key);
  90
  91         if (entry)
  92                 return entry->data;
  93
  94         /* Otherwise, let's create a job */
  95
  96         struct panfrost_batch *batch = panfrost_create_batch(ctx, key);
  97
  98         /* Save the created job */
  99         _mesa_hash_table_insert(ctx->batches, &batch->key, batch);
 100
 101         return batch;
 102 }
 103
 104 /* Get the job corresponding to the FBO we're currently rendering into */
 105
 106 struct panfrost_batch *
 107 panfrost_get_batch_for_fbo(struct panfrost_context *ctx)
 108 {
 109         /* If we're wallpapering, we special case to workaround
 110          * u_blitter abuse */
 111
 112         if (ctx->wallpaper_batch)
 113                 return ctx->wallpaper_batch;
 114
 115         /* If we already began rendering, use that */
 116
 117         if (ctx->batch) {
 118                 assert(util_framebuffer_state_equal(&ctx->batch->key,
 119                                                     &ctx->pipe_framebuffer));
 120                 return ctx->batch;
 121         }
 122
 123         /* If not, look up the job */
 124         struct panfrost_batch *batch = panfrost_get_batch(ctx,
 125                                                           &ctx->pipe_framebuffer);
 126
 127         /* Set this job as the current FBO job. Will be reset when updating the
 128          * FB state and when submitting or releasing a job.
 129          */
 130         ctx->batch = batch;
 131         return batch;
 132 }
 133
 134 void
 135 panfrost_batch_add_bo(struct panfrost_batch *batch, struct panfrost_bo *bo)
 136 {
 137         if (!bo)
 138                 return;
 139
 140         if (_mesa_set_search(batch->bos, bo))
 141                 return;
 142
 143         panfrost_bo_reference(bo);
 144         _mesa_set_add(batch->bos, bo);
 145 }
 146
 147 void panfrost_batch_add_fbo_bos(struct panfrost_batch *batch)
 148 {
 149         for (unsigned i = 0; i < batch->key.nr_cbufs; ++i) {
 150                 struct panfrost_resource *rsrc = pan_resource(batch->key.cbufs[i]->texture);
 151                 panfrost_batch_add_bo(batch, rsrc->bo);
 152         }
 153
 154         if (batch->key.zsbuf) {
 155                 struct panfrost_resource *rsrc = pan_resource(batch->key.zsbuf->texture);
 156                 panfrost_batch_add_bo(batch, rsrc->bo);
 157         }
 158 }
 159
 160 struct panfrost_bo *
 161 panfrost_batch_create_bo(struct panfrost_batch *batch, size_t size,
 162                          uint32_t create_flags)
 163 {
 164         struct panfrost_bo *bo;
 165
 166         bo = panfrost_bo_create(pan_screen(batch->ctx->base.screen), size,
 167                                 create_flags);
 168         panfrost_batch_add_bo(batch, bo);
 169
 170         /* panfrost_batch_add_bo() has retained a reference and
 171          * panfrost_bo_create() initialize the refcnt to 1, so let's
 172          * unreference the BO here so it gets released when the batch is
 173          * destroyed (unless it's retained by someone else in the meantime).
 174          */
 175         panfrost_bo_unreference(bo);
 176         return bo;
 177 }
 178
 179 /* Returns the polygon list's GPU address if available, or otherwise allocates
 180  * the polygon list.  It's perfectly fast to use allocate/free BO directly,
 181  * since we'll hit the BO cache and this is one-per-batch anyway. */
 182
 183 mali_ptr
 184 panfrost_batch_get_polygon_list(struct panfrost_batch *batch, unsigned size)
 185 {
 186         if (batch->polygon_list) {
 187                 assert(batch->polygon_list->size >= size);
 188         } else {
 189                 /* Create the BO as invisible, as there's no reason to map */
 190
 191                 batch->polygon_list = panfrost_batch_create_bo(batch, size,
 192                                                                PAN_BO_INVISIBLE);
 193         }
 194
 195         return batch->polygon_list->gpu;
 196 }
 197
 198 struct panfrost_bo *
 199 panfrost_batch_get_scratchpad(struct panfrost_batch *batch)
 200 {
 201         if (batch->scratchpad)
 202                 return batch->scratchpad;
 203
 204         batch->scratchpad = panfrost_batch_create_bo(batch, 64 * 4 * 4096,
 205                                                      PAN_BO_INVISIBLE);
 206         assert(batch->scratchpad);
 207         return batch->scratchpad;
 208 }
 209
 210 struct panfrost_bo *
 211 panfrost_batch_get_tiler_heap(struct panfrost_batch *batch)
 212 {
 213         if (batch->tiler_heap)
 214                 return batch->tiler_heap;
 215
 216         batch->tiler_heap = panfrost_batch_create_bo(batch, 4096 * 4096,
 217                                                      PAN_BO_INVISIBLE |
 218                                                      PAN_BO_GROWABLE);
 219         assert(batch->tiler_heap);
 220         return batch->tiler_heap;
 221 }
 222
 223 struct panfrost_bo *
 224 panfrost_batch_get_tiler_dummy(struct panfrost_batch *batch)
 225 {
 226         if (batch->tiler_dummy)
 227                 return batch->tiler_dummy;
 228
 229         batch->tiler_dummy = panfrost_batch_create_bo(batch, 4096,
 230                                                       PAN_BO_INVISIBLE);
 231         assert(batch->tiler_dummy);
 232         return batch->tiler_dummy;
 233 }
 234
 235 static void
 236 panfrost_batch_draw_wallpaper(struct panfrost_batch *batch)
 237 {
 238         /* Nothing to reload? TODO: MRT wallpapers */
 239         if (batch->key.cbufs[0] == NULL)
 240                 return;
 241
 242         /* Check if the buffer has any content on it worth preserving */
 243
 244         struct pipe_surface *surf = batch->key.cbufs[0];
 245         struct panfrost_resource *rsrc = pan_resource(surf->texture);
 246         unsigned level = surf->u.tex.level;
 247
 248         if (!rsrc->slices[level].initialized)
 249                 return;
 250
 251         batch->ctx->wallpaper_batch = batch;
 252
 253         /* Clamp the rendering area to the damage extent. The
 254          * KHR_partial_update() spec states that trying to render outside of
 255          * the damage region is "undefined behavior", so we should be safe.
 256          */
 257         unsigned damage_width = (rsrc->damage.extent.maxx - rsrc->damage.extent.minx);
 258         unsigned damage_height = (rsrc->damage.extent.maxy - rsrc->damage.extent.miny);
 259
 260         if (damage_width && damage_height) {
 261                 panfrost_batch_intersection_scissor(batch,
 262                                                     rsrc->damage.extent.minx,
 263                                                     rsrc->damage.extent.miny,
 264                                                     rsrc->damage.extent.maxx,
 265                                                     rsrc->damage.extent.maxy);
 266         }
 267
 268         /* FIXME: Looks like aligning on a tile is not enough, but
 269          * aligning on twice the tile size seems to works. We don't
 270          * know exactly what happens here but this deserves extra
 271          * investigation to figure it out.
 272          */
 273         batch->minx = batch->minx & ~((MALI_TILE_LENGTH * 2) - 1);
 274         batch->miny = batch->miny & ~((MALI_TILE_LENGTH * 2) - 1);
 275         batch->maxx = MIN2(ALIGN_POT(batch->maxx, MALI_TILE_LENGTH * 2),
 276                            rsrc->base.width0);
 277         batch->maxy = MIN2(ALIGN_POT(batch->maxy, MALI_TILE_LENGTH * 2),
 278                            rsrc->base.height0);
 279
 280         struct pipe_scissor_state damage;
 281         struct pipe_box rects[4];
 282
 283         /* Clamp the damage box to the rendering area. */
 284         damage.minx = MAX2(batch->minx, rsrc->damage.biggest_rect.x);
 285         damage.miny = MAX2(batch->miny, rsrc->damage.biggest_rect.y);
 286         damage.maxx = MIN2(batch->maxx,
 287                            rsrc->damage.biggest_rect.x +
 288                            rsrc->damage.biggest_rect.width);
 289         damage.maxy = MIN2(batch->maxy,
 290                            rsrc->damage.biggest_rect.y +
 291                            rsrc->damage.biggest_rect.height);
 292
 293         /* One damage rectangle means we can end up with at most 4 reload
 294          * regions:
 295          * 1: left region, only exists if damage.x > 0
 296          * 2: right region, only exists if damage.x + damage.width < fb->width
 297          * 3: top region, only exists if damage.y > 0. The intersection with
 298          *    the left and right regions are dropped
 299          * 4: bottom region, only exists if damage.y + damage.height < fb->height.
 300          *    The intersection with the left and right regions are dropped
 301          *
 302          *                    ____________________________
 303          *                    |       |     3     |      |
 304          *                    |       |___________|      |
 305          *                    |       |   damage  |      |
 306          *                    |   1   |    rect   |   2  |
 307          *                    |       |___________|      |
 308          *                    |       |     4     |      |
 309          *                    |_______|___________|______|
 310          */
 311         u_box_2d(batch->minx, batch->miny, damage.minx - batch->minx,
 312                  batch->maxy - batch->miny, &rects[0]);
 313         u_box_2d(damage.maxx, batch->miny, batch->maxx - damage.maxx,
 314                  batch->maxy - batch->miny, &rects[1]);
 315         u_box_2d(damage.minx, batch->miny, damage.maxx - damage.minx,
 316                  damage.miny - batch->miny, &rects[2]);
 317         u_box_2d(damage.minx, damage.maxy, damage.maxx - damage.minx,
 318                  batch->maxy - damage.maxy, &rects[3]);
 319
 320         for (unsigned i = 0; i < 4; i++) {
 321                 /* Width and height are always >= 0 even if width is declared as a
 322                  * signed integer: u_box_2d() helper takes unsigned args and
 323                  * panfrost_set_damage_region() is taking care of clamping
 324                  * negative values.
 325                  */
 326                 if (!rects[i].width || !rects[i].height)
 327                         continue;
 328
 329                 /* Blit the wallpaper in */
 330                 panfrost_blit_wallpaper(batch->ctx, &rects[i]);
 331         }
 332         batch->ctx->wallpaper_batch = NULL;
 333 }
 334
 335 static int
 336 panfrost_batch_submit_ioctl(struct panfrost_batch *batch,
 337                             mali_ptr first_job_desc,
 338                             uint32_t reqs)
 339 {
 340         struct panfrost_context *ctx = batch->ctx;
 341         struct pipe_context *gallium = (struct pipe_context *) ctx;
 342         struct panfrost_screen *screen = pan_screen(gallium->screen);
 343         struct drm_panfrost_submit submit = {0,};
 344         uint32_t *bo_handles;
 345         int ret;
 346
 347         submit.in_syncs = (u64) (uintptr_t) &ctx->out_sync;
 348         submit.in_sync_count = 1;
 349
 350         submit.out_sync = ctx->out_sync;
 351
 352         submit.jc = first_job_desc;
 353         submit.requirements = reqs;
 354
 355         bo_handles = calloc(batch->bos->entries, sizeof(*bo_handles));
 356         assert(bo_handles);
 357
 358         set_foreach(batch->bos, entry) {
 359                 struct panfrost_bo *bo = (struct panfrost_bo *)entry->key;
 360                 assert(bo->gem_handle > 0);
 361                 bo_handles[submit.bo_handle_count++] = bo->gem_handle;
 362         }
 363
 364         submit.bo_handles = (u64) (uintptr_t) bo_handles;
 365         ret = drmIoctl(screen->fd, DRM_IOCTL_PANFROST_SUBMIT, &submit);
 366         free(bo_handles);
 367         if (ret) {
 368                 fprintf(stderr, "Error submitting: %m\n");
 369                 return errno;
 370         }
 371
 372         /* Trace the job if we're doing that */
 373         if (pan_debug & PAN_DBG_TRACE) {
 374                 /* Wait so we can get errors reported back */
 375                 drmSyncobjWait(screen->fd, &ctx->out_sync, 1, INT64_MAX, 0, NULL);
 376                 pandecode_jc(submit.jc, FALSE);
 377         }
 378
 379         return 0;
 380 }
 381
 382 static int
 383 panfrost_batch_submit_jobs(struct panfrost_batch *batch)
 384 {
 385         bool has_draws = batch->first_job.gpu;
 386         int ret = 0;
 387
 388         if (has_draws) {
 389                 ret = panfrost_batch_submit_ioctl(batch, batch->first_job.gpu, 0);
 390                 assert(!ret);
 391         }
 392
 393         if (batch->first_tiler.gpu || batch->clear) {
 394                 mali_ptr fragjob = panfrost_fragment_job(batch, has_draws);
 395
 396                 ret = panfrost_batch_submit_ioctl(batch, fragjob, PANFROST_JD_REQ_FS);
 397                 assert(!ret);
 398         }
 399
 400         return ret;
 401 }
 402
 403 void
 404 panfrost_batch_submit(struct panfrost_batch *batch)
 405 {
 406         assert(batch);
 407
 408         struct panfrost_context *ctx = batch->ctx;
 409         int ret;
 410
 411         /* Nothing to do! */
 412         if (!batch->last_job.gpu && !batch->clear)
 413                 goto out;
 414
 415         if (!batch->clear && batch->last_tiler.gpu)
 416                 panfrost_batch_draw_wallpaper(batch);
 417
 418         panfrost_scoreboard_link_batch(batch);
 419
 420         ret = panfrost_batch_submit_jobs(batch);
 421
 422         if (ret)
 423                 fprintf(stderr, "panfrost_batch_submit failed: %d\n", ret);
 424
 425 out:
 426         /* If this is the bound batch, the panfrost_context parameters are
 427          * relevant so submitting it invalidates those paramaters, but if it's
 428          * not bound, the context parameters are for some other batch so we
 429          * can't invalidate them.
 430          */
 431         if (ctx->batch == batch)
 432                 panfrost_invalidate_frame(ctx);
 433
 434         /* The job has been submitted, let's invalidate the current FBO job
 435          * cache.
 436          */
 437         assert(!ctx->batch || batch == ctx->batch);
 438         ctx->batch = NULL;
 439
 440         /* We always stall the pipeline for correct results since pipelined
 441          * rendering is quite broken right now (to be fixed by the panfrost_job
 442          * refactor, just take the perf hit for correctness)
 443          */
 444         drmSyncobjWait(pan_screen(ctx->base.screen)->fd, &ctx->out_sync, 1,
 445                        INT64_MAX, 0, NULL);
 446         panfrost_free_batch(batch);
 447 }
 448
 449 void
 450 panfrost_batch_set_requirements(struct panfrost_batch *batch)
 451 {
 452         struct panfrost_context *ctx = batch->ctx;
 453
 454         if (ctx->rasterizer && ctx->rasterizer->base.multisample)
 455                 batch->requirements |= PAN_REQ_MSAA;
 456
 457         if (ctx->depth_stencil && ctx->depth_stencil->depth.writemask)
 458                 batch->requirements |= PAN_REQ_DEPTH_WRITE;
 459 }
 460
 461 /* Helper to smear a 32-bit color across 128-bit components */
 462
 463 static void
 464 pan_pack_color_32(uint32_t *packed, uint32_t v)
 465 {
 466         for (unsigned i = 0; i < 4; ++i)
 467                 packed[i] = v;
 468 }
 469
 470 static void
 471 pan_pack_color_64(uint32_t *packed, uint32_t lo, uint32_t hi)
 472 {
 473         for (unsigned i = 0; i < 4; i += 2) {
 474                 packed[i + 0] = lo;
 475                 packed[i + 1] = hi;
 476         }
 477 }
 478
 479 static void
 480 pan_pack_color(uint32_t *packed, const union pipe_color_union *color, enum pipe_format format)
 481 {
 482         /* Alpha magicked to 1.0 if there is no alpha */
 483
 484         bool has_alpha = util_format_has_alpha(format);
 485         float clear_alpha = has_alpha ? color->f[3] : 1.0f;
 486
 487         /* Packed color depends on the framebuffer format */
 488
 489         const struct util_format_description *desc =
 490                 util_format_description(format);
 491
 492         if (util_format_is_rgba8_variant(desc)) {
 493                 pan_pack_color_32(packed,
 494                                   (float_to_ubyte(clear_alpha) << 24) |
 495                                   (float_to_ubyte(color->f[2]) << 16) |
 496                                   (float_to_ubyte(color->f[1]) <<  8) |
 497                                   (float_to_ubyte(color->f[0]) <<  0));
 498         } else if (format == PIPE_FORMAT_B5G6R5_UNORM) {
 499                 /* First, we convert the components to R5, G6, B5 separately */
 500                 unsigned r5 = CLAMP(color->f[0], 0.0, 1.0) * 31.0;
 501                 unsigned g6 = CLAMP(color->f[1], 0.0, 1.0) * 63.0;
 502                 unsigned b5 = CLAMP(color->f[2], 0.0, 1.0) * 31.0;
 503
 504                 /* Then we pack into a sparse u32. TODO: Why these shifts? */
 505                 pan_pack_color_32(packed, (b5 << 25) | (g6 << 14) | (r5 << 5));
 506         } else if (format == PIPE_FORMAT_B4G4R4A4_UNORM) {
 507                 /* We scale the components against 0xF0 (=240.0), rather than 0xFF */
 508                 unsigned r4 = CLAMP(color->f[0], 0.0, 1.0) * 240.0;
 509                 unsigned g4 = CLAMP(color->f[1], 0.0, 1.0) * 240.0;
 510                 unsigned b4 = CLAMP(color->f[2], 0.0, 1.0) * 240.0;
 511                 unsigned a4 = CLAMP(clear_alpha, 0.0, 1.0) * 240.0;
 512
 513                 /* Pack on *byte* intervals */
 514                 pan_pack_color_32(packed, (a4 << 24) | (b4 << 16) | (g4 << 8) | r4);
 515         } else if (format == PIPE_FORMAT_B5G5R5A1_UNORM) {
 516                 /* Scale as expected but shift oddly */
 517                 unsigned r5 = round(CLAMP(color->f[0], 0.0, 1.0)) * 31.0;
 518                 unsigned g5 = round(CLAMP(color->f[1], 0.0, 1.0)) * 31.0;
 519                 unsigned b5 = round(CLAMP(color->f[2], 0.0, 1.0)) * 31.0;
 520                 unsigned a1 = round(CLAMP(clear_alpha, 0.0, 1.0)) * 1.0;
 521
 522                 pan_pack_color_32(packed, (a1 << 31) | (b5 << 25) | (g5 << 15) | (r5 << 5));
 523         } else {
 524                 /* Try Gallium's generic default path. Doesn't work for all
 525                  * formats but it's a good guess. */
 526
 527                 union util_color out;
 528
 529                 if (util_format_is_pure_integer(format)) {
 530                         memcpy(out.ui, color->ui, 16);
 531                 } else {
 532                         util_pack_color(color->f, format, &out);
 533                 }
 534
 535                 unsigned size = util_format_get_blocksize(format);
 536
 537                 if (size == 1) {
 538                         unsigned b = out.ui[0];
 539                         unsigned s = b | (b << 8);
 540                         pan_pack_color_32(packed, s | (s << 16));
 541                 } else if (size == 2)
 542                         pan_pack_color_32(packed, out.ui[0] | (out.ui[0] << 16));
 543                 else if (size == 4)
 544                         pan_pack_color_32(packed, out.ui[0]);
 545                 else if (size == 8)
 546                         pan_pack_color_64(packed, out.ui[0], out.ui[1]);
 547                 else if (size == 16)
 548                         memcpy(packed, out.ui, 16);
 549                 else
 550                         unreachable("Unknown generic format size packing clear colour");
 551         }
 552 }
 553
 554 void
 555 panfrost_batch_clear(struct panfrost_batch *batch,
 556                      unsigned buffers,
 557                      const union pipe_color_union *color,
 558                      double depth, unsigned stencil)
 559 {
 560         struct panfrost_context *ctx = batch->ctx;
 561
 562         if (buffers & PIPE_CLEAR_COLOR) {
 563                 for (unsigned i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) {
 564                         if (!(buffers & (PIPE_CLEAR_COLOR0 << i)))
 565                                 continue;
 566
 567                         enum pipe_format format = ctx->pipe_framebuffer.cbufs[i]->format;
 568                         pan_pack_color(batch->clear_color[i], color, format);
 569                 }
 570         }
 571
 572         if (buffers & PIPE_CLEAR_DEPTH) {
 573                 batch->clear_depth = depth;
 574         }
 575
 576         if (buffers & PIPE_CLEAR_STENCIL) {
 577                 batch->clear_stencil = stencil;
 578         }
 579
 580         batch->clear |= buffers;
 581
 582         /* Clearing affects the entire framebuffer (by definition -- this is
 583          * the Gallium clear callback, which clears the whole framebuffer. If
 584          * the scissor test were enabled from the GL side, the state tracker
 585          * would emit a quad instead and we wouldn't go down this code path) */
 586
 587         panfrost_batch_union_scissor(batch, 0, 0,
 588                                      ctx->pipe_framebuffer.width,
 589                                      ctx->pipe_framebuffer.height);
 590 }
 591
 592 static bool
 593 panfrost_batch_compare(const void *a, const void *b)
 594 {
 595         return util_framebuffer_state_equal(a, b);
 596 }
 597
 598 static uint32_t
 599 panfrost_batch_hash(const void *key)
 600 {
 601         return _mesa_hash_data(key, sizeof(struct pipe_framebuffer_state));
 602 }
 603
 604 /* Given a new bounding rectangle (scissor), let the job cover the union of the
 605  * new and old bounding rectangles */
 606
 607 void
 608 panfrost_batch_union_scissor(struct panfrost_batch *batch,
 609                              unsigned minx, unsigned miny,
 610                              unsigned maxx, unsigned maxy)
 611 {
 612         batch->minx = MIN2(batch->minx, minx);
 613         batch->miny = MIN2(batch->miny, miny);
 614         batch->maxx = MAX2(batch->maxx, maxx);
 615         batch->maxy = MAX2(batch->maxy, maxy);
 616 }
 617
 618 void
 619 panfrost_batch_intersection_scissor(struct panfrost_batch *batch,
 620                                   unsigned minx, unsigned miny,
 621                                   unsigned maxx, unsigned maxy)
 622 {
 623         batch->minx = MAX2(batch->minx, minx);
 624         batch->miny = MAX2(batch->miny, miny);
 625         batch->maxx = MIN2(batch->maxx, maxx);
 626         batch->maxy = MIN2(batch->maxy, maxy);
 627 }
 628
 629 /* Are we currently rendering to the screen (rather than an FBO)? */
 630
 631 bool
 632 panfrost_batch_is_scanout(struct panfrost_batch *batch)
 633 {
 634         /* If there is no color buffer, it's an FBO */
 635         if (batch->key.nr_cbufs != 1)
 636                 return false;
 637
 638         /* If we're too early that no framebuffer was sent, it's scanout */
 639         if (!batch->key.cbufs[0])
 640                 return true;
 641
 642         return batch->key.cbufs[0]->texture->bind & PIPE_BIND_DISPLAY_TARGET ||
 643                batch->key.cbufs[0]->texture->bind & PIPE_BIND_SCANOUT ||
 644                batch->key.cbufs[0]->texture->bind & PIPE_BIND_SHARED;
 645 }
 646
 647 void
 648 panfrost_batch_init(struct panfrost_context *ctx)
 649 {
 650         ctx->batches = _mesa_hash_table_create(ctx,
 651                                                panfrost_batch_hash,
 652                                                panfrost_batch_compare);
 653 }