src/gallium/drivers/lima/lima_resource.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/u_blitter.h"
  27 #include "util/format/u_format.h"
  28 #include "util/u_inlines.h"
  29 #include "util/u_math.h"
  30 #include "util/u_debug.h"
  31 #include "util/u_transfer.h"
  32 #include "util/u_surface.h"
  33 #include "util/hash_table.h"
  34 #include "util/ralloc.h"
  35 #include "util/u_drm.h"
  36 #include "renderonly/renderonly.h"
  37
  38 #include "state_tracker/drm_driver.h"
  39
  40 #include "drm-uapi/drm_fourcc.h"
  41 #include "drm-uapi/lima_drm.h"
  42
  43 #include "lima_screen.h"
  44 #include "lima_context.h"
  45 #include "lima_resource.h"
  46 #include "lima_bo.h"
  47 #include "lima_util.h"
  48
  49 #include "pan_minmax_cache.h"
  50 #include "pan_tiling.h"
  51
  52 static struct pipe_resource *
  53 lima_resource_create_scanout(struct pipe_screen *pscreen,
  54                              const struct pipe_resource *templat,
  55                              unsigned width, unsigned height)
  56 {
  57    struct lima_screen *screen = lima_screen(pscreen);
  58    struct renderonly_scanout *scanout;
  59    struct winsys_handle handle;
  60    struct pipe_resource *pres;
  61
  62    struct pipe_resource scanout_templat = *templat;
  63    scanout_templat.width0 = width;
  64    scanout_templat.height0 = height;
  65    scanout_templat.screen = pscreen;
  66
  67    scanout = renderonly_scanout_for_resource(&scanout_templat,
  68                                              screen->ro, &handle);
  69    if (!scanout)
  70       return NULL;
  71
  72    assert(handle.type == WINSYS_HANDLE_TYPE_FD);
  73    pres = pscreen->resource_from_handle(pscreen, templat, &handle,
  74                                         PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
  75
  76    close(handle.handle);
  77    if (!pres) {
  78       renderonly_scanout_destroy(scanout, screen->ro);
  79       return NULL;
  80    }
  81
  82    struct lima_resource *res = lima_resource(pres);
  83    res->scanout = scanout;
  84
  85    return pres;
  86 }
  87
  88 static uint32_t
  89 setup_miptree(struct lima_resource *res,
  90               unsigned width0, unsigned height0,
  91               bool should_align_dimensions)
  92 {
  93    struct pipe_resource *pres = &res->base;
  94    unsigned level;
  95    unsigned width = width0;
  96    unsigned height = height0;
  97    unsigned depth = pres->depth0;
  98    uint32_t size = 0;
  99
 100    for (level = 0; level <= pres->last_level; level++) {
 101       uint32_t actual_level_size;
 102       uint32_t stride;
 103       unsigned aligned_width;
 104       unsigned aligned_height;
 105
 106       if (should_align_dimensions) {
 107          aligned_width = align(width, 16);
 108          aligned_height = align(height, 16);
 109       } else {
 110          aligned_width = width;
 111          aligned_height = height;
 112       }
 113
 114       stride = util_format_get_stride(pres->format, aligned_width);
 115       actual_level_size = stride *
 116          util_format_get_nblocksy(pres->format, aligned_height) *
 117          pres->array_size * depth;
 118
 119       res->levels[level].width = aligned_width;
 120       res->levels[level].stride = stride;
 121       res->levels[level].offset = size;
 122       res->levels[level].layer_stride = util_format_get_stride(pres->format, align(width, 16)) * align(height, 16);
 123
 124       if (util_format_is_compressed(pres->format))
 125          res->levels[level].layer_stride /= 4;
 126
 127       /* The start address of each level except the last level
 128        * must be 64-aligned in order to be able to pass the
 129        * addresses to the hardware. */
 130       if (level != pres->last_level)
 131          size += align(actual_level_size, 64);
 132       else
 133          size += actual_level_size;  /* Save some memory */
 134
 135       width = u_minify(width, 1);
 136       height = u_minify(height, 1);
 137       depth = u_minify(depth, 1);
 138    }
 139
 140    return size;
 141 }
 142
 143 static struct pipe_resource *
 144 lima_resource_create_bo(struct pipe_screen *pscreen,
 145                         const struct pipe_resource *templat,
 146                         unsigned width, unsigned height,
 147                         bool should_align_dimensions)
 148 {
 149    struct lima_screen *screen = lima_screen(pscreen);
 150    struct lima_resource *res;
 151    struct pipe_resource *pres;
 152
 153    res = CALLOC_STRUCT(lima_resource);
 154    if (!res)
 155       return NULL;
 156
 157    res->base = *templat;
 158    res->base.screen = pscreen;
 159    pipe_reference_init(&res->base.reference, 1);
 160
 161    pres = &res->base;
 162
 163    uint32_t size = setup_miptree(res, width, height, should_align_dimensions);
 164    size = align(size, LIMA_PAGE_SIZE);
 165
 166    res->bo = lima_bo_create(screen, size, 0);
 167    if (!res->bo) {
 168       FREE(res);
 169       return NULL;
 170    }
 171
 172    return pres;
 173 }
 174
 175 static struct pipe_resource *
 176 _lima_resource_create_with_modifiers(struct pipe_screen *pscreen,
 177                                      const struct pipe_resource *templat,
 178                                      const uint64_t *modifiers,
 179                                      int count)
 180 {
 181    struct lima_screen *screen = lima_screen(pscreen);
 182    bool should_tile = lima_debug & LIMA_DEBUG_NO_TILING ? false : true;
 183    unsigned width, height;
 184    bool should_align_dimensions;
 185    bool has_user_modifiers = true;
 186
 187    if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID)
 188       has_user_modifiers = false;
 189
 190    /* VBOs/PBOs are untiled (and 1 height). */
 191    if (templat->target == PIPE_BUFFER)
 192       should_tile = false;
 193
 194    if (templat->bind & (PIPE_BIND_LINEAR | PIPE_BIND_SCANOUT))
 195       should_tile = false;
 196
 197    /* If there's no user modifiers and buffer is shared we use linear */
 198    if (!has_user_modifiers && (templat->bind & PIPE_BIND_SHARED))
 199       should_tile = false;
 200
 201    if (has_user_modifiers &&
 202       !drm_find_modifier(DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED,
 203                          modifiers, count))
 204       should_tile = false;
 205
 206    if (should_tile || (templat->bind & PIPE_BIND_RENDER_TARGET) ||
 207        (templat->bind & PIPE_BIND_DEPTH_STENCIL)) {
 208       should_align_dimensions = true;
 209       width = align(templat->width0, 16);
 210       height = align(templat->height0, 16);
 211    }
 212    else {
 213       should_align_dimensions = false;
 214       width = templat->width0;
 215       height = templat->height0;
 216    }
 217
 218    struct pipe_resource *pres;
 219    if (screen->ro && (templat->bind & PIPE_BIND_SCANOUT))
 220       pres = lima_resource_create_scanout(pscreen, templat, width, height);
 221    else
 222       pres = lima_resource_create_bo(pscreen, templat, width, height,
 223                                      should_align_dimensions);
 224
 225    if (pres) {
 226       struct lima_resource *res = lima_resource(pres);
 227       res->tiled = should_tile;
 228
 229       if (templat->bind & PIPE_BIND_INDEX_BUFFER)
 230          res->index_cache = CALLOC_STRUCT(panfrost_minmax_cache);
 231
 232       debug_printf("%s: pres=%p width=%u height=%u depth=%u target=%d "
 233                    "bind=%x usage=%d tile=%d last_level=%d\n", __func__,
 234                    pres, pres->width0, pres->height0, pres->depth0,
 235                    pres->target, pres->bind, pres->usage, should_tile, templat->last_level);
 236    }
 237    return pres;
 238 }
 239
 240 static struct pipe_resource *
 241 lima_resource_create(struct pipe_screen *pscreen,
 242                      const struct pipe_resource *templat)
 243 {
 244    const uint64_t mod = DRM_FORMAT_MOD_INVALID;
 245
 246    return _lima_resource_create_with_modifiers(pscreen, templat, &mod, 1);
 247 }
 248
 249 static struct pipe_resource *
 250 lima_resource_create_with_modifiers(struct pipe_screen *pscreen,
 251                                     const struct pipe_resource *templat,
 252                                     const uint64_t *modifiers,
 253                                     int count)
 254 {
 255    struct pipe_resource tmpl = *templat;
 256
 257    /* gbm_bo_create_with_modifiers & gbm_surface_create_with_modifiers
 258     * don't have usage parameter, but buffer created by these functions
 259     * may be used for scanout. So we assume buffer created by this
 260     * function always enable scanout if linear modifier is permitted.
 261     */
 262    if (drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count))
 263       tmpl.bind |= PIPE_BIND_SCANOUT;
 264
 265    return _lima_resource_create_with_modifiers(pscreen, &tmpl, modifiers, count);
 266 }
 267
 268 static void
 269 lima_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *pres)
 270 {
 271    struct lima_screen *screen = lima_screen(pscreen);
 272    struct lima_resource *res = lima_resource(pres);
 273
 274    if (res->bo)
 275       lima_bo_unreference(res->bo);
 276
 277    if (res->scanout)
 278       renderonly_scanout_destroy(res->scanout, screen->ro);
 279
 280    if (res->damage.region)
 281       FREE(res->damage.region);
 282
 283    if (res->index_cache)
 284       FREE(res->index_cache);
 285
 286    FREE(res);
 287 }
 288
 289 static struct pipe_resource *
 290 lima_resource_from_handle(struct pipe_screen *pscreen,
 291         const struct pipe_resource *templat,
 292         struct winsys_handle *handle, unsigned usage)
 293 {
 294    struct lima_resource *res;
 295    struct lima_screen *screen = lima_screen(pscreen);
 296
 297    res = CALLOC_STRUCT(lima_resource);
 298    if (!res)
 299       return NULL;
 300
 301    struct pipe_resource *pres = &res->base;
 302    *pres = *templat;
 303    pres->screen = pscreen;
 304    pipe_reference_init(&pres->reference, 1);
 305    res->levels[0].offset = 0;
 306    res->levels[0].stride = handle->stride;
 307
 308    res->bo = lima_bo_import(screen, handle);
 309    if (!res->bo) {
 310       FREE(res);
 311       return NULL;
 312    }
 313
 314    /* check alignment for the buffer */
 315    if (pres->bind & PIPE_BIND_RENDER_TARGET) {
 316       unsigned width, height, stride, size;
 317
 318       width = align(pres->width0, 16);
 319       height = align(pres->height0, 16);
 320       stride = util_format_get_stride(pres->format, width);
 321       size = util_format_get_2d_size(pres->format, stride, height);
 322
 323       if (res->levels[0].stride != stride || res->bo->size < size) {
 324          debug_error("import buffer not properly aligned\n");
 325          goto err_out;
 326       }
 327
 328       res->levels[0].width = width;
 329    }
 330    else
 331       res->levels[0].width = pres->width0;
 332
 333    switch (handle->modifier) {
 334    case DRM_FORMAT_MOD_LINEAR:
 335       res->tiled = false;
 336       break;
 337    case DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED:
 338       res->tiled = true;
 339       break;
 340    case DRM_FORMAT_MOD_INVALID:
 341       /* Modifier wasn't specified and it's shared buffer. We create these
 342        * as linear, so disable tiling.
 343        */
 344       res->tiled = false;
 345       break;
 346    default:
 347       fprintf(stderr, "Attempted to import unsupported modifier 0x%llx\n",
 348                   (long long)handle->modifier);
 349       goto err_out;
 350    }
 351
 352    return pres;
 353
 354 err_out:
 355    lima_resource_destroy(pscreen, pres);
 356    return NULL;
 357 }
 358
 359 static bool
 360 lima_resource_get_handle(struct pipe_screen *pscreen,
 361                          struct pipe_context *pctx,
 362                          struct pipe_resource *pres,
 363                          struct winsys_handle *handle, unsigned usage)
 364 {
 365    struct lima_screen *screen = lima_screen(pscreen);
 366    struct lima_resource *res = lima_resource(pres);
 367
 368    if (res->tiled)
 369       handle->modifier = DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED;
 370    else
 371       handle->modifier = DRM_FORMAT_MOD_LINEAR;
 372
 373    if (handle->type == WINSYS_HANDLE_TYPE_KMS && screen->ro &&
 374        renderonly_get_handle(res->scanout, handle))
 375       return true;
 376
 377    if (!lima_bo_export(res->bo, handle))
 378       return false;
 379
 380    handle->stride = res->levels[0].stride;
 381    return true;
 382 }
 383
 384 static void
 385 get_scissor_from_box(struct pipe_scissor_state *s,
 386                      const struct pipe_box *b, int h)
 387 {
 388    int y = h - (b->y + b->height);
 389    /* region in tile unit */
 390    s->minx = b->x >> 4;
 391    s->miny = y >> 4;
 392    s->maxx = (b->x + b->width + 0xf) >> 4;
 393    s->maxy = (y + b->height + 0xf) >> 4;
 394 }
 395
 396 static void
 397 get_damage_bound_box(struct pipe_resource *pres,
 398                      const struct pipe_box *rects,
 399                      unsigned int nrects,
 400                      struct pipe_scissor_state *bound)
 401 {
 402    struct pipe_box b = rects[0];
 403
 404    for (int i = 1; i < nrects; i++)
 405       u_box_union_2d(&b, &b, rects + i);
 406
 407    int ret = u_box_clip_2d(&b, &b, pres->width0, pres->height0);
 408    if (ret < 0)
 409       memset(bound, 0, sizeof(*bound));
 410    else
 411       get_scissor_from_box(bound, &b, pres->height0);
 412 }
 413
 414 static void
 415 lima_resource_set_damage_region(struct pipe_screen *pscreen,
 416                                 struct pipe_resource *pres,
 417                                 unsigned int nrects,
 418                                 const struct pipe_box *rects)
 419 {
 420    struct lima_resource *res = lima_resource(pres);
 421    struct lima_damage_region *damage = &res->damage;
 422    int i;
 423
 424    if (damage->region) {
 425       FREE(damage->region);
 426       damage->region = NULL;
 427       damage->num_region = 0;
 428    }
 429
 430    if (!nrects)
 431       return;
 432
 433    /* check full damage
 434     *
 435     * TODO: currently only check if there is any single damage
 436     * region that can cover the full render target; there may
 437     * be some accurate way, but a single window size damage
 438     * region is most of the case from weston
 439     */
 440    for (i = 0; i < nrects; i++) {
 441       if (rects[i].x <= 0 && rects[i].y <= 0 &&
 442           rects[i].x + rects[i].width >= pres->width0 &&
 443           rects[i].y + rects[i].height >= pres->height0)
 444          return;
 445    }
 446
 447    struct pipe_scissor_state *bound = &damage->bound;
 448    get_damage_bound_box(pres, rects, nrects, bound);
 449
 450    damage->region = CALLOC(nrects, sizeof(*damage->region));
 451    if (!damage->region)
 452       return;
 453
 454    for (i = 0; i < nrects; i++)
 455       get_scissor_from_box(damage->region + i, rects + i,
 456                            pres->height0);
 457
 458    /* is region aligned to tiles? */
 459    damage->aligned = true;
 460    for (i = 0; i < nrects; i++) {
 461       if (rects[i].x & 0xf || rects[i].y & 0xf ||
 462           rects[i].width & 0xf || rects[i].height & 0xf) {
 463          damage->aligned = false;
 464          break;
 465       }
 466    }
 467
 468    damage->num_region = nrects;
 469 }
 470
 471 void
 472 lima_resource_screen_init(struct lima_screen *screen)
 473 {
 474    screen->base.resource_create = lima_resource_create;
 475    screen->base.resource_create_with_modifiers = lima_resource_create_with_modifiers;
 476    screen->base.resource_from_handle = lima_resource_from_handle;
 477    screen->base.resource_destroy = lima_resource_destroy;
 478    screen->base.resource_get_handle = lima_resource_get_handle;
 479    screen->base.set_damage_region = lima_resource_set_damage_region;
 480 }
 481
 482 static struct pipe_surface *
 483 lima_surface_create(struct pipe_context *pctx,
 484                     struct pipe_resource *pres,
 485                     const struct pipe_surface *surf_tmpl)
 486 {
 487    struct lima_surface *surf = CALLOC_STRUCT(lima_surface);
 488
 489    if (!surf)
 490       return NULL;
 491
 492    assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 493
 494    struct pipe_surface *psurf = &surf->base;
 495    unsigned level = surf_tmpl->u.tex.level;
 496
 497    pipe_reference_init(&psurf->reference, 1);
 498    pipe_resource_reference(&psurf->texture, pres);
 499
 500    psurf->context = pctx;
 501    psurf->format = surf_tmpl->format;
 502    psurf->width = u_minify(pres->width0, level);
 503    psurf->height = u_minify(pres->height0, level);
 504    psurf->u.tex.level = level;
 505    psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 506    psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 507
 508    surf->tiled_w = align(psurf->width, 16) >> 4;
 509    surf->tiled_h = align(psurf->height, 16) >> 4;
 510
 511    surf->reload = true;
 512
 513    return &surf->base;
 514 }
 515
 516 static void
 517 lima_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 518 {
 519    struct lima_surface *surf = lima_surface(psurf);
 520
 521    pipe_resource_reference(&psurf->texture, NULL);
 522    FREE(surf);
 523 }
 524
 525 static void *
 526 lima_transfer_map(struct pipe_context *pctx,
 527                   struct pipe_resource *pres,
 528                   unsigned level,
 529                   unsigned usage,
 530                   const struct pipe_box *box,
 531                   struct pipe_transfer **pptrans)
 532 {
 533    struct lima_context *ctx = lima_context(pctx);
 534    struct lima_resource *res = lima_resource(pres);
 535    struct lima_bo *bo = res->bo;
 536    struct lima_transfer *trans;
 537    struct pipe_transfer *ptrans;
 538
 539    /* No direct mappings of tiled, since we need to manually
 540     * tile/untile.
 541     */
 542    if (res->tiled && (usage & PIPE_TRANSFER_MAP_DIRECTLY))
 543       return NULL;
 544
 545    /* use once buffers are made sure to not read/write overlapped
 546     * range, so no need to sync */
 547    if (pres->usage != PIPE_USAGE_STREAM) {
 548       if (usage & PIPE_TRANSFER_READ_WRITE) {
 549          lima_flush_job_accessing_bo(ctx, bo, usage & PIPE_TRANSFER_WRITE);
 550
 551          unsigned op = usage & PIPE_TRANSFER_WRITE ?
 552             LIMA_GEM_WAIT_WRITE : LIMA_GEM_WAIT_READ;
 553          lima_bo_wait(bo, op, PIPE_TIMEOUT_INFINITE);
 554       }
 555    }
 556
 557    if (!lima_bo_map(bo))
 558       return NULL;
 559
 560    trans = slab_alloc(&ctx->transfer_pool);
 561    if (!trans)
 562       return NULL;
 563
 564    memset(trans, 0, sizeof(*trans));
 565    ptrans = &trans->base;
 566
 567    pipe_resource_reference(&ptrans->resource, pres);
 568    ptrans->level = level;
 569    ptrans->usage = usage;
 570    ptrans->box = *box;
 571
 572    *pptrans = ptrans;
 573
 574    if (res->tiled) {
 575       ptrans->stride = util_format_get_stride(pres->format, ptrans->box.width);
 576       ptrans->layer_stride = ptrans->stride * ptrans->box.height;
 577
 578       trans->staging = malloc(ptrans->stride * ptrans->box.height * ptrans->box.depth);
 579
 580       if (usage & PIPE_TRANSFER_READ) {
 581          unsigned i;
 582          for (i = 0; i < ptrans->box.depth; i++)
 583             panfrost_load_tiled_image(
 584                trans->staging + i * ptrans->stride * ptrans->box.height,
 585                bo->map + res->levels[level].offset + (i + box->z) * res->levels[level].layer_stride,
 586                ptrans->box.x, ptrans->box.y,
 587                ptrans->box.width, ptrans->box.height,
 588                ptrans->stride,
 589                res->levels[level].stride,
 590                pres->format);
 591       }
 592
 593       return trans->staging;
 594    } else {
 595       unsigned dpw = PIPE_TRANSFER_MAP_DIRECTLY | PIPE_TRANSFER_WRITE |
 596                      PIPE_TRANSFER_PERSISTENT;
 597       if ((usage & dpw) == dpw && res->index_cache)
 598          return NULL;
 599
 600       ptrans->stride = res->levels[level].stride;
 601       ptrans->layer_stride = res->levels[level].layer_stride;
 602
 603       if ((usage & PIPE_TRANSFER_WRITE) && (usage & PIPE_TRANSFER_MAP_DIRECTLY))
 604          panfrost_minmax_cache_invalidate(res->index_cache, ptrans);
 605
 606       return bo->map + res->levels[level].offset +
 607          box->z * res->levels[level].layer_stride +
 608          box->y / util_format_get_blockheight(pres->format) * ptrans->stride +
 609          box->x / util_format_get_blockwidth(pres->format) *
 610          util_format_get_blocksize(pres->format);
 611    }
 612 }
 613
 614 static void
 615 lima_transfer_flush_region(struct pipe_context *pctx,
 616                            struct pipe_transfer *ptrans,
 617                            const struct pipe_box *box)
 618 {
 619
 620 }
 621
 622 static void
 623 lima_transfer_unmap(struct pipe_context *pctx,
 624                     struct pipe_transfer *ptrans)
 625 {
 626    struct lima_context *ctx = lima_context(pctx);
 627    struct lima_transfer *trans = lima_transfer(ptrans);
 628    struct lima_resource *res = lima_resource(ptrans->resource);
 629    struct lima_bo *bo = res->bo;
 630    struct pipe_resource *pres;
 631
 632    if (trans->staging) {
 633       pres = &res->base;
 634       if (ptrans->usage & PIPE_TRANSFER_WRITE) {
 635          unsigned i;
 636          for (i = 0; i < ptrans->box.depth; i++)
 637             panfrost_store_tiled_image(
 638                bo->map + res->levels[ptrans->level].offset + (i + ptrans->box.z) * res->levels[ptrans->level].layer_stride,
 639                trans->staging + i * ptrans->stride * ptrans->box.height,
 640                ptrans->box.x, ptrans->box.y,
 641                ptrans->box.width, ptrans->box.height,
 642                res->levels[ptrans->level].stride,
 643                ptrans->stride,
 644                pres->format);
 645       }
 646       free(trans->staging);
 647    }
 648
 649    panfrost_minmax_cache_invalidate(res->index_cache, ptrans);
 650
 651    pipe_resource_reference(&ptrans->resource, NULL);
 652    slab_free(&ctx->transfer_pool, trans);
 653 }
 654
 655 static void
 656 lima_util_blitter_save_states(struct lima_context *ctx)
 657 {
 658    util_blitter_save_blend(ctx->blitter, (void *)ctx->blend);
 659    util_blitter_save_depth_stencil_alpha(ctx->blitter, (void *)ctx->zsa);
 660    util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 661    util_blitter_save_rasterizer(ctx->blitter, (void *)ctx->rasterizer);
 662    util_blitter_save_fragment_shader(ctx->blitter, ctx->fs);
 663    util_blitter_save_vertex_shader(ctx->blitter, ctx->vs);
 664    util_blitter_save_viewport(ctx->blitter,
 665                               &ctx->viewport.transform);
 666    util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 667    util_blitter_save_vertex_elements(ctx->blitter,
 668                                      ctx->vertex_elements);
 669    util_blitter_save_vertex_buffer_slot(ctx->blitter,
 670                                         ctx->vertex_buffers.vb);
 671
 672    util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer.base);
 673
 674    util_blitter_save_fragment_sampler_states(ctx->blitter,
 675                                              ctx->tex_stateobj.num_samplers,
 676                                              (void**)ctx->tex_stateobj.samplers);
 677    util_blitter_save_fragment_sampler_views(ctx->blitter,
 678                                             ctx->tex_stateobj.num_textures,
 679                                             ctx->tex_stateobj.textures);
 680 }
 681
 682 static void
 683 lima_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 684 {
 685    struct lima_context *ctx = lima_context(pctx);
 686    struct pipe_blit_info info = *blit_info;
 687
 688    if (util_try_blit_via_copy_region(pctx, &info)) {
 689       return; /* done */
 690    }
 691
 692    if (info.mask & PIPE_MASK_S) {
 693       debug_printf("lima: cannot blit stencil, skipping\n");
 694       info.mask &= ~PIPE_MASK_S;
 695    }
 696
 697    if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 698       debug_printf("lima: blit unsupported %s -> %s\n",
 699                    util_format_short_name(info.src.resource->format),
 700                    util_format_short_name(info.dst.resource->format));
 701       return;
 702    }
 703
 704    lima_util_blitter_save_states(ctx);
 705
 706    util_blitter_blit(ctx->blitter, &info);
 707 }
 708
 709 static void
 710 lima_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 711 {
 712
 713 }
 714
 715 void
 716 lima_resource_context_init(struct lima_context *ctx)
 717 {
 718    ctx->base.create_surface = lima_surface_create;
 719    ctx->base.surface_destroy = lima_surface_destroy;
 720
 721    /* TODO: optimize these functions to read/write data directly
 722     * from/to target instead of creating a staging memory for tiled
 723     * buffer indirectly
 724     */
 725    ctx->base.buffer_subdata = u_default_buffer_subdata;
 726    ctx->base.texture_subdata = u_default_texture_subdata;
 727    ctx->base.resource_copy_region = util_resource_copy_region;
 728
 729    ctx->base.blit = lima_blit;
 730
 731    ctx->base.transfer_map = lima_transfer_map;
 732    ctx->base.transfer_flush_region = lima_transfer_flush_region;
 733    ctx->base.transfer_unmap = lima_transfer_unmap;
 734
 735    ctx->base.flush_resource = lima_flush_resource;
 736 }