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/u_drm.h"
  35 #include "renderonly/renderonly.h"
  36
  37 #include "state_tracker/drm_driver.h"
  38
  39 #include "drm-uapi/drm_fourcc.h"
  40 #include "drm-uapi/lima_drm.h"
  41
  42 #include "lima_screen.h"
  43 #include "lima_context.h"
  44 #include "lima_resource.h"
  45 #include "lima_bo.h"
  46 #include "lima_util.h"
  47 #include "pan_tiling.h"
  48
  49 static struct pipe_resource *
  50 lima_resource_create_scanout(struct pipe_screen *pscreen,
  51                              const struct pipe_resource *templat,
  52                              unsigned width, unsigned height)
  53 {
  54    struct lima_screen *screen = lima_screen(pscreen);
  55    struct renderonly_scanout *scanout;
  56    struct winsys_handle handle;
  57    struct pipe_resource *pres;
  58
  59    struct pipe_resource scanout_templat = *templat;
  60    scanout_templat.width0 = width;
  61    scanout_templat.height0 = height;
  62    scanout_templat.screen = pscreen;
  63
  64    scanout = renderonly_scanout_for_resource(&scanout_templat,
  65                                              screen->ro, &handle);
  66    if (!scanout)
  67       return NULL;
  68
  69    assert(handle.type == WINSYS_HANDLE_TYPE_FD);
  70    pres = pscreen->resource_from_handle(pscreen, templat, &handle,
  71                                         PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE);
  72
  73    close(handle.handle);
  74    if (!pres) {
  75       renderonly_scanout_destroy(scanout, screen->ro);
  76       return NULL;
  77    }
  78
  79    struct lima_resource *res = lima_resource(pres);
  80    res->scanout = scanout;
  81
  82    return pres;
  83 }
  84
  85 static uint32_t
  86 setup_miptree(struct lima_resource *res,
  87               unsigned width0, unsigned height0,
  88               bool should_align_dimensions)
  89 {
  90    struct pipe_resource *pres = &res->base;
  91    unsigned level;
  92    unsigned width = width0;
  93    unsigned height = height0;
  94    unsigned depth = pres->depth0;
  95    uint32_t size = 0;
  96
  97    for (level = 0; level <= pres->last_level; level++) {
  98       uint32_t actual_level_size;
  99       uint32_t stride;
 100       unsigned aligned_width;
 101       unsigned aligned_height;
 102
 103       if (should_align_dimensions) {
 104          aligned_width = align(width, 16);
 105          aligned_height = align(height, 16);
 106       } else {
 107          aligned_width = width;
 108          aligned_height = height;
 109       }
 110
 111       stride = util_format_get_stride(pres->format, aligned_width);
 112       actual_level_size = stride *
 113          util_format_get_nblocksy(pres->format, aligned_height) *
 114          pres->array_size * depth;
 115
 116       res->levels[level].width = aligned_width;
 117       res->levels[level].stride = stride;
 118       res->levels[level].offset = size;
 119       res->levels[level].layer_stride = util_format_get_stride(pres->format, align(width, 16)) * align(height, 16);
 120
 121       /* The start address of each level <= 10 must be 64-aligned
 122        * in order to be able to pass the addresses
 123        * to the hardware.
 124        * The start addresses of level 11 and level 12 are passed
 125        * implicitely: they start at an offset of respectively
 126        * 0x0400 and 0x0800 from the start address of level 10 */
 127       if (level < 10)
 128          size += align(actual_level_size, 64);
 129       else if (level != pres->last_level)
 130          size += 0x0400;
 131       else
 132          size += actual_level_size;  /* Save some memory */
 133
 134       width = u_minify(width, 1);
 135       height = u_minify(height, 1);
 136       depth = u_minify(depth, 1);
 137    }
 138
 139    return size;
 140 }
 141
 142 static struct pipe_resource *
 143 lima_resource_create_bo(struct pipe_screen *pscreen,
 144                         const struct pipe_resource *templat,
 145                         unsigned width, unsigned height,
 146                         bool should_align_dimensions)
 147 {
 148    struct lima_screen *screen = lima_screen(pscreen);
 149    struct lima_resource *res;
 150    struct pipe_resource *pres;
 151
 152    res = CALLOC_STRUCT(lima_resource);
 153    if (!res)
 154       return NULL;
 155
 156    res->base = *templat;
 157    res->base.screen = pscreen;
 158    pipe_reference_init(&res->base.reference, 1);
 159
 160    pres = &res->base;
 161
 162    uint32_t size = setup_miptree(res, width, height, should_align_dimensions);
 163    size = align(size, LIMA_PAGE_SIZE);
 164
 165    res->bo = lima_bo_create(screen, size, 0);
 166    if (!res->bo) {
 167       FREE(res);
 168       return NULL;
 169    }
 170
 171    return pres;
 172 }
 173
 174 static struct pipe_resource *
 175 _lima_resource_create_with_modifiers(struct pipe_screen *pscreen,
 176                                      const struct pipe_resource *templat,
 177                                      const uint64_t *modifiers,
 178                                      int count)
 179 {
 180    struct lima_screen *screen = lima_screen(pscreen);
 181    bool should_tile = true;
 182    unsigned width, height;
 183    bool should_align_dimensions;
 184    bool has_user_modifiers = true;
 185
 186    if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID)
 187       has_user_modifiers = false;
 188
 189    /* VBOs/PBOs are untiled (and 1 height). */
 190    if (templat->target == PIPE_BUFFER)
 191       should_tile = false;
 192
 193    if (templat->bind & (PIPE_BIND_LINEAR | PIPE_BIND_SCANOUT))
 194       should_tile = false;
 195
 196    if (drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count))
 197       should_tile = false;
 198
 199    if (has_user_modifiers &&
 200       !drm_find_modifier(DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED,
 201                          modifiers, count))
 202       should_tile = false;
 203
 204    if (should_tile || (templat->bind & PIPE_BIND_RENDER_TARGET) ||
 205        (templat->bind & PIPE_BIND_DEPTH_STENCIL)) {
 206       should_align_dimensions = true;
 207       width = align(templat->width0, 16);
 208       height = align(templat->height0, 16);
 209    }
 210    else {
 211       should_align_dimensions = false;
 212       width = templat->width0;
 213       height = templat->height0;
 214    }
 215
 216    struct pipe_resource *pres;
 217    if (screen->ro && (templat->bind & PIPE_BIND_SCANOUT))
 218       pres = lima_resource_create_scanout(pscreen, templat, width, height);
 219    else
 220       pres = lima_resource_create_bo(pscreen, templat, width, height,
 221                                      should_align_dimensions);
 222
 223    if (pres) {
 224       struct lima_resource *res = lima_resource(pres);
 225       res->tiled = should_tile;
 226
 227       debug_printf("%s: pres=%p width=%u height=%u depth=%u target=%d "
 228                    "bind=%x usage=%d tile=%d last_level=%d\n", __func__,
 229                    pres, pres->width0, pres->height0, pres->depth0,
 230                    pres->target, pres->bind, pres->usage, should_tile, templat->last_level);
 231    }
 232    return pres;
 233 }
 234
 235 static struct pipe_resource *
 236 lima_resource_create(struct pipe_screen *pscreen,
 237                      const struct pipe_resource *templat)
 238 {
 239    const uint64_t mod = DRM_FORMAT_MOD_INVALID;
 240
 241    return _lima_resource_create_with_modifiers(pscreen, templat, &mod, 1);
 242 }
 243
 244 static struct pipe_resource *
 245 lima_resource_create_with_modifiers(struct pipe_screen *pscreen,
 246                                     const struct pipe_resource *templat,
 247                                     const uint64_t *modifiers,
 248                                     int count)
 249 {
 250    struct pipe_resource tmpl = *templat;
 251
 252    /* gbm_bo_create_with_modifiers & gbm_surface_create_with_modifiers
 253     * don't have usage parameter, but buffer created by these functions
 254     * may be used for scanout. So we assume buffer created by this
 255     * function always enable scanout if linear modifier is permitted.
 256     */
 257    if (drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count))
 258       tmpl.bind |= PIPE_BIND_SCANOUT;
 259
 260    return _lima_resource_create_with_modifiers(pscreen, &tmpl, modifiers, count);
 261 }
 262
 263 static void
 264 lima_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *pres)
 265 {
 266    struct lima_screen *screen = lima_screen(pscreen);
 267    struct lima_resource *res = lima_resource(pres);
 268
 269    if (res->bo)
 270       lima_bo_unreference(res->bo);
 271
 272    if (res->scanout)
 273       renderonly_scanout_destroy(res->scanout, screen->ro);
 274
 275    if (res->damage.region)
 276       FREE(res->damage.region);
 277
 278    FREE(res);
 279 }
 280
 281 static struct pipe_resource *
 282 lima_resource_from_handle(struct pipe_screen *pscreen,
 283         const struct pipe_resource *templat,
 284         struct winsys_handle *handle, unsigned usage)
 285 {
 286    struct lima_resource *res;
 287    struct lima_screen *screen = lima_screen(pscreen);
 288
 289    res = CALLOC_STRUCT(lima_resource);
 290    if (!res)
 291       return NULL;
 292
 293    struct pipe_resource *pres = &res->base;
 294    *pres = *templat;
 295    pres->screen = pscreen;
 296    pipe_reference_init(&pres->reference, 1);
 297    res->levels[0].offset = 0;
 298    res->levels[0].stride = handle->stride;
 299
 300    res->bo = lima_bo_import(screen, handle);
 301    if (!res->bo) {
 302       FREE(res);
 303       return NULL;
 304    }
 305
 306    /* check alignment for the buffer */
 307    if (pres->bind & PIPE_BIND_RENDER_TARGET) {
 308       unsigned width, height, stride, size;
 309
 310       width = align(pres->width0, 16);
 311       height = align(pres->height0, 16);
 312       stride = util_format_get_stride(pres->format, width);
 313       size = util_format_get_2d_size(pres->format, stride, height);
 314
 315       if (res->levels[0].stride != stride || res->bo->size < size) {
 316          debug_error("import buffer not properly aligned\n");
 317          goto err_out;
 318       }
 319
 320       res->levels[0].width = width;
 321    }
 322    else
 323       res->levels[0].width = pres->width0;
 324
 325    switch (handle->modifier) {
 326    case DRM_FORMAT_MOD_LINEAR:
 327       res->tiled = false;
 328       break;
 329    case DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED:
 330       res->tiled = true;
 331       break;
 332    case DRM_FORMAT_MOD_INVALID:
 333       res->tiled = screen->ro == NULL;
 334       break;
 335    default:
 336       fprintf(stderr, "Attempted to import unsupported modifier 0x%llx\n",
 337                   (long long)handle->modifier);
 338       goto err_out;
 339    }
 340
 341    return pres;
 342
 343 err_out:
 344    lima_resource_destroy(pscreen, pres);
 345    return NULL;
 346 }
 347
 348 static bool
 349 lima_resource_get_handle(struct pipe_screen *pscreen,
 350                          struct pipe_context *pctx,
 351                          struct pipe_resource *pres,
 352                          struct winsys_handle *handle, unsigned usage)
 353 {
 354    struct lima_screen *screen = lima_screen(pscreen);
 355    struct lima_resource *res = lima_resource(pres);
 356
 357    if (res->tiled)
 358       handle->modifier = DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED;
 359    else
 360       handle->modifier = DRM_FORMAT_MOD_LINEAR;
 361
 362    if (handle->type == WINSYS_HANDLE_TYPE_KMS && screen->ro &&
 363        renderonly_get_handle(res->scanout, handle))
 364       return true;
 365
 366    if (!lima_bo_export(res->bo, handle))
 367       return false;
 368
 369    handle->stride = res->levels[0].stride;
 370    return true;
 371 }
 372
 373 static void
 374 get_scissor_from_box(struct pipe_scissor_state *s,
 375                      const struct pipe_box *b, int h)
 376 {
 377    int y = h - (b->y + b->height);
 378    /* region in tile unit */
 379    s->minx = b->x >> 4;
 380    s->miny = y >> 4;
 381    s->maxx = (b->x + b->width + 0xf) >> 4;
 382    s->maxy = (y + b->height + 0xf) >> 4;
 383 }
 384
 385 static void
 386 get_damage_bound_box(struct pipe_resource *pres,
 387                      const struct pipe_box *rects,
 388                      unsigned int nrects,
 389                      struct pipe_scissor_state *bound)
 390 {
 391    struct pipe_box b = rects[0];
 392
 393    for (int i = 1; i < nrects; i++)
 394       u_box_union_2d(&b, &b, rects + i);
 395
 396    int ret = u_box_clip_2d(&b, &b, pres->width0, pres->height0);
 397    if (ret < 0)
 398       memset(bound, 0, sizeof(*bound));
 399    else
 400       get_scissor_from_box(bound, &b, pres->height0);
 401 }
 402
 403 static void
 404 lima_resource_set_damage_region(struct pipe_screen *pscreen,
 405                                 struct pipe_resource *pres,
 406                                 unsigned int nrects,
 407                                 const struct pipe_box *rects)
 408 {
 409    struct lima_resource *res = lima_resource(pres);
 410    struct lima_damage_region *damage = &res->damage;
 411    int i;
 412
 413    if (damage->region) {
 414       FREE(damage->region);
 415       damage->region = NULL;
 416       damage->num_region = 0;
 417    }
 418
 419    if (!nrects)
 420       return;
 421
 422    /* check full damage
 423     *
 424     * TODO: currently only check if there is any single damage
 425     * region that can cover the full render target; there may
 426     * be some accurate way, but a single window size damage
 427     * region is most of the case from weston
 428     */
 429    for (i = 0; i < nrects; i++) {
 430       if (rects[i].x <= 0 && rects[i].y <= 0 &&
 431           rects[i].x + rects[i].width >= pres->width0 &&
 432           rects[i].y + rects[i].height >= pres->height0)
 433          return;
 434    }
 435
 436    struct pipe_scissor_state *bound = &damage->bound;
 437    get_damage_bound_box(pres, rects, nrects, bound);
 438
 439    damage->region = CALLOC(nrects, sizeof(*damage->region));
 440    if (!damage->region)
 441       return;
 442
 443    for (i = 0; i < nrects; i++)
 444       get_scissor_from_box(damage->region + i, rects + i,
 445                            pres->height0);
 446
 447    /* is region aligned to tiles? */
 448    damage->aligned = true;
 449    for (i = 0; i < nrects; i++) {
 450       if (rects[i].x & 0xf || rects[i].y & 0xf ||
 451           rects[i].width & 0xf || rects[i].height & 0xf) {
 452          damage->aligned = false;
 453          break;
 454       }
 455    }
 456
 457    damage->num_region = nrects;
 458 }
 459
 460 void
 461 lima_resource_screen_init(struct lima_screen *screen)
 462 {
 463    screen->base.resource_create = lima_resource_create;
 464    screen->base.resource_create_with_modifiers = lima_resource_create_with_modifiers;
 465    screen->base.resource_from_handle = lima_resource_from_handle;
 466    screen->base.resource_destroy = lima_resource_destroy;
 467    screen->base.resource_get_handle = lima_resource_get_handle;
 468    screen->base.set_damage_region = lima_resource_set_damage_region;
 469 }
 470
 471 static struct pipe_surface *
 472 lima_surface_create(struct pipe_context *pctx,
 473                     struct pipe_resource *pres,
 474                     const struct pipe_surface *surf_tmpl)
 475 {
 476    struct lima_surface *surf = CALLOC_STRUCT(lima_surface);
 477
 478    if (!surf)
 479       return NULL;
 480
 481    assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
 482
 483    struct pipe_surface *psurf = &surf->base;
 484    unsigned level = surf_tmpl->u.tex.level;
 485
 486    pipe_reference_init(&psurf->reference, 1);
 487    pipe_resource_reference(&psurf->texture, pres);
 488
 489    psurf->context = pctx;
 490    psurf->format = surf_tmpl->format;
 491    psurf->width = u_minify(pres->width0, level);
 492    psurf->height = u_minify(pres->height0, level);
 493    psurf->u.tex.level = level;
 494    psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 495    psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 496
 497    surf->tiled_w = align(psurf->width, 16) >> 4;
 498    surf->tiled_h = align(psurf->height, 16) >> 4;
 499
 500    surf->reload = true;
 501
 502    struct lima_context *ctx = lima_context(pctx);
 503    if (ctx->plb_pp_stream) {
 504       struct lima_ctx_plb_pp_stream_key key = {
 505          .tiled_w = surf->tiled_w,
 506          .tiled_h = surf->tiled_h,
 507       };
 508
 509       for (int i = 0; i < lima_ctx_num_plb; i++) {
 510          key.plb_index = i;
 511
 512          struct hash_entry *entry =
 513             _mesa_hash_table_search(ctx->plb_pp_stream, &key);
 514          if (entry) {
 515             struct lima_ctx_plb_pp_stream *s = entry->data;
 516             s->refcnt++;
 517          }
 518          else {
 519             struct lima_ctx_plb_pp_stream *s =
 520                ralloc(ctx->plb_pp_stream, struct lima_ctx_plb_pp_stream);
 521             s->key.plb_index = i;
 522             s->key.tiled_w = surf->tiled_w;
 523             s->key.tiled_h = surf->tiled_h;
 524             s->refcnt = 1;
 525             s->bo = NULL;
 526             _mesa_hash_table_insert(ctx->plb_pp_stream, &s->key, s);
 527          }
 528       }
 529    }
 530
 531    return &surf->base;
 532 }
 533
 534 static void
 535 lima_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
 536 {
 537    struct lima_surface *surf = lima_surface(psurf);
 538    /* psurf->context may be not equal with pctx (i.e. glxinfo) */
 539    struct lima_context *ctx = lima_context(psurf->context);
 540
 541    if (ctx->plb_pp_stream) {
 542       struct lima_ctx_plb_pp_stream_key key = {
 543          .tiled_w = surf->tiled_w,
 544          .tiled_h = surf->tiled_h,
 545       };
 546
 547       for (int i = 0; i < lima_ctx_num_plb; i++) {
 548          key.plb_index = i;
 549
 550          struct hash_entry *entry =
 551             _mesa_hash_table_search(ctx->plb_pp_stream, &key);
 552          struct lima_ctx_plb_pp_stream *s = entry->data;
 553          if (--s->refcnt == 0) {
 554             if (s->bo)
 555                lima_bo_unreference(s->bo);
 556             _mesa_hash_table_remove(ctx->plb_pp_stream, entry);
 557             ralloc_free(s);
 558          }
 559       }
 560    }
 561
 562    pipe_resource_reference(&psurf->texture, NULL);
 563    FREE(surf);
 564 }
 565
 566 static void *
 567 lima_transfer_map(struct pipe_context *pctx,
 568                   struct pipe_resource *pres,
 569                   unsigned level,
 570                   unsigned usage,
 571                   const struct pipe_box *box,
 572                   struct pipe_transfer **pptrans)
 573 {
 574    struct lima_context *ctx = lima_context(pctx);
 575    struct lima_resource *res = lima_resource(pres);
 576    struct lima_bo *bo = res->bo;
 577    struct lima_transfer *trans;
 578    struct pipe_transfer *ptrans;
 579
 580    /* No direct mappings of tiled, since we need to manually
 581     * tile/untile.
 582     */
 583    if (res->tiled && (usage & PIPE_TRANSFER_MAP_DIRECTLY))
 584       return NULL;
 585
 586    /* use once buffers are made sure to not read/write overlapped
 587     * range, so no need to sync */
 588    if (pres->usage != PIPE_USAGE_STREAM) {
 589       if (usage & PIPE_TRANSFER_READ_WRITE) {
 590          if (lima_need_flush(ctx, bo, usage & PIPE_TRANSFER_WRITE))
 591             lima_flush(ctx);
 592
 593          unsigned op = usage & PIPE_TRANSFER_WRITE ?
 594             LIMA_GEM_WAIT_WRITE : LIMA_GEM_WAIT_READ;
 595          lima_bo_wait(bo, op, PIPE_TIMEOUT_INFINITE);
 596       }
 597    }
 598
 599    if (!lima_bo_map(bo))
 600       return NULL;
 601
 602    trans = slab_alloc(&ctx->transfer_pool);
 603    if (!trans)
 604       return NULL;
 605
 606    memset(trans, 0, sizeof(*trans));
 607    ptrans = &trans->base;
 608
 609    pipe_resource_reference(&ptrans->resource, pres);
 610    ptrans->level = level;
 611    ptrans->usage = usage;
 612    ptrans->box = *box;
 613
 614    *pptrans = ptrans;
 615
 616    if (res->tiled) {
 617       ptrans->stride = util_format_get_stride(pres->format, ptrans->box.width);
 618       ptrans->layer_stride = ptrans->stride * ptrans->box.height;
 619
 620       trans->staging = malloc(ptrans->stride * ptrans->box.height * ptrans->box.depth);
 621
 622       if (usage & PIPE_TRANSFER_READ) {
 623          unsigned i;
 624          for (i = 0; i < ptrans->box.depth; i++)
 625             panfrost_load_tiled_image(
 626                trans->staging + i * ptrans->stride * ptrans->box.height,
 627                bo->map + res->levels[level].offset + (i + box->z) * res->levels[level].layer_stride,
 628                &ptrans->box,
 629                ptrans->stride,
 630                res->levels[level].stride,
 631                util_format_get_blocksize(pres->format));
 632       }
 633
 634       return trans->staging;
 635    } else {
 636       ptrans->stride = res->levels[level].stride;
 637       ptrans->layer_stride = res->levels[level].layer_stride;
 638
 639       return bo->map + res->levels[level].offset +
 640          box->z * res->levels[level].layer_stride +
 641          box->y / util_format_get_blockheight(pres->format) * ptrans->stride +
 642          box->x / util_format_get_blockwidth(pres->format) *
 643          util_format_get_blocksize(pres->format);
 644    }
 645 }
 646
 647 static void
 648 lima_transfer_flush_region(struct pipe_context *pctx,
 649                            struct pipe_transfer *ptrans,
 650                            const struct pipe_box *box)
 651 {
 652
 653 }
 654
 655 static void
 656 lima_transfer_unmap(struct pipe_context *pctx,
 657                     struct pipe_transfer *ptrans)
 658 {
 659    struct lima_context *ctx = lima_context(pctx);
 660    struct lima_transfer *trans = lima_transfer(ptrans);
 661    struct lima_resource *res = lima_resource(ptrans->resource);
 662    struct lima_bo *bo = res->bo;
 663    struct pipe_resource *pres;
 664
 665    if (trans->staging) {
 666       pres = &res->base;
 667       if (ptrans->usage & PIPE_TRANSFER_WRITE) {
 668          unsigned i;
 669          for (i = 0; i < ptrans->box.depth; i++)
 670             panfrost_store_tiled_image(
 671                bo->map + res->levels[ptrans->level].offset + (i + ptrans->box.z) * res->levels[ptrans->level].layer_stride,
 672                trans->staging + i * ptrans->stride * ptrans->box.height,
 673                &ptrans->box,
 674                res->levels[ptrans->level].stride,
 675                ptrans->stride,
 676                util_format_get_blocksize(pres->format));
 677       }
 678       free(trans->staging);
 679    }
 680
 681    pipe_resource_reference(&ptrans->resource, NULL);
 682    slab_free(&ctx->transfer_pool, trans);
 683 }
 684
 685 static void
 686 lima_util_blitter_save_states(struct lima_context *ctx)
 687 {
 688    util_blitter_save_blend(ctx->blitter, (void *)ctx->blend);
 689    util_blitter_save_depth_stencil_alpha(ctx->blitter, (void *)ctx->zsa);
 690    util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 691    util_blitter_save_rasterizer(ctx->blitter, (void *)ctx->rasterizer);
 692    util_blitter_save_fragment_shader(ctx->blitter, ctx->fs);
 693    util_blitter_save_vertex_shader(ctx->blitter, ctx->vs);
 694    util_blitter_save_viewport(ctx->blitter,
 695                               &ctx->viewport.transform);
 696    util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 697    util_blitter_save_vertex_elements(ctx->blitter,
 698                                      ctx->vertex_elements);
 699    util_blitter_save_vertex_buffer_slot(ctx->blitter,
 700                                         ctx->vertex_buffers.vb);
 701
 702    util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer.base);
 703
 704    util_blitter_save_fragment_sampler_states(ctx->blitter,
 705                                              ctx->tex_stateobj.num_samplers,
 706                                              (void**)ctx->tex_stateobj.samplers);
 707    util_blitter_save_fragment_sampler_views(ctx->blitter,
 708                                             ctx->tex_stateobj.num_textures,
 709                                             ctx->tex_stateobj.textures);
 710 }
 711
 712 static void
 713 lima_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 714 {
 715    struct lima_context *ctx = lima_context(pctx);
 716    struct pipe_blit_info info = *blit_info;
 717
 718    if (util_try_blit_via_copy_region(pctx, &info)) {
 719       return; /* done */
 720    }
 721
 722    if (info.mask & PIPE_MASK_S) {
 723       debug_printf("lima: cannot blit stencil, skipping\n");
 724       info.mask &= ~PIPE_MASK_S;
 725    }
 726
 727    if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 728       debug_printf("lima: blit unsupported %s -> %s\n",
 729                    util_format_short_name(info.src.resource->format),
 730                    util_format_short_name(info.dst.resource->format));
 731       return;
 732    }
 733
 734    lima_util_blitter_save_states(ctx);
 735
 736    util_blitter_blit(ctx->blitter, &info);
 737 }
 738
 739 static void
 740 lima_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
 741 {
 742
 743 }
 744
 745 void
 746 lima_resource_context_init(struct lima_context *ctx)
 747 {
 748    ctx->base.create_surface = lima_surface_create;
 749    ctx->base.surface_destroy = lima_surface_destroy;
 750
 751    /* TODO: optimize these functions to read/write data directly
 752     * from/to target instead of creating a staging memory for tiled
 753     * buffer indirectly
 754     */
 755    ctx->base.buffer_subdata = u_default_buffer_subdata;
 756    ctx->base.texture_subdata = u_default_texture_subdata;
 757    ctx->base.resource_copy_region = util_resource_copy_region;
 758
 759    ctx->base.blit = lima_blit;
 760
 761    ctx->base.transfer_map = lima_transfer_map;
 762    ctx->base.transfer_flush_region = lima_transfer_flush_region;
 763    ctx->base.transfer_unmap = lima_transfer_unmap;
 764
 765    ctx->base.flush_resource = lima_flush_resource;
 766 }