src/gallium/drivers/panfrost/pan_resource.c

   1 /*
   2  * Copyright (C) 2008 VMware, Inc.
   3  * Copyright (C) 2014 Broadcom
   4  * Copyright (C) 2018-2019 Alyssa Rosenzweig
   5  * Copyright (C) 2019 Collabora
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the next
  15  * paragraph) shall be included in all copies or substantial portions of the
  16  * Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  21  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  24  * SOFTWARE.
  25  *
  26  * Authors (Collabora):
  27  *   Tomeu Vizoso <tomeu.vizoso@collabora.com>
  28  *   Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
  29  *
  30  */
  31
  32 #include <xf86drm.h>
  33 #include <fcntl.h>
  34 #include "drm-uapi/drm_fourcc.h"
  35
  36 #include "state_tracker/winsys_handle.h"
  37 #include "util/u_format.h"
  38 #include "util/u_memory.h"
  39 #include "util/u_surface.h"
  40 #include "util/u_transfer.h"
  41 #include "util/u_transfer_helper.h"
  42
  43 #include "pan_context.h"
  44 #include "pan_screen.h"
  45 #include "pan_resource.h"
  46 #include "pan_swizzle.h"
  47 #include "pan_util.h"
  48
  49 static struct pipe_resource *
  50 panfrost_resource_from_handle(struct pipe_screen *pscreen,
  51                               const struct pipe_resource *templat,
  52                               struct winsys_handle *whandle,
  53                               unsigned usage)
  54 {
  55         struct panfrost_screen *screen = pan_screen(pscreen);
  56         struct panfrost_resource *rsc;
  57         struct pipe_resource *prsc;
  58
  59         assert(whandle->type == WINSYS_HANDLE_TYPE_FD);
  60
  61         rsc = CALLOC_STRUCT(panfrost_resource);
  62         if (!rsc)
  63                 return NULL;
  64
  65         prsc = &rsc->base;
  66
  67         *prsc = *templat;
  68
  69         pipe_reference_init(&prsc->reference, 1);
  70         prsc->screen = pscreen;
  71
  72         rsc->bo = screen->driver->import_bo(screen, whandle);
  73         rsc->bo->slices[0].stride = whandle->stride;
  74
  75         if (screen->ro) {
  76                 rsc->scanout =
  77                         renderonly_create_gpu_import_for_resource(prsc, screen->ro, NULL);
  78                 /* failure is expected in some cases.. */
  79         }
  80
  81         return prsc;
  82 }
  83
  84 static boolean
  85 panfrost_resource_get_handle(struct pipe_screen *pscreen,
  86                              struct pipe_context *ctx,
  87                              struct pipe_resource *pt,
  88                              struct winsys_handle *handle,
  89                              unsigned usage)
  90 {
  91         struct panfrost_screen *screen = pan_screen(pscreen);
  92         struct panfrost_resource *rsrc = (struct panfrost_resource *) pt;
  93         struct renderonly_scanout *scanout = rsrc->scanout;
  94
  95         handle->modifier = DRM_FORMAT_MOD_INVALID;
  96
  97         if (handle->type == WINSYS_HANDLE_TYPE_SHARED) {
  98                 return FALSE;
  99         } else if (handle->type == WINSYS_HANDLE_TYPE_KMS) {
 100                 if (renderonly_get_handle(scanout, handle))
 101                         return TRUE;
 102
 103                 handle->handle = rsrc->bo->gem_handle;
 104                 handle->stride = rsrc->bo->slices[0].stride;
 105                 return TRUE;
 106         } else if (handle->type == WINSYS_HANDLE_TYPE_FD) {
 107                 if (scanout) {
 108                         struct drm_prime_handle args = {
 109                                 .handle = scanout->handle,
 110                                 .flags = DRM_CLOEXEC,
 111                         };
 112
 113                         int ret = drmIoctl(screen->ro->kms_fd, DRM_IOCTL_PRIME_HANDLE_TO_FD, &args);
 114                         if (ret == -1)
 115                                 return FALSE;
 116
 117                         handle->stride = scanout->stride;
 118                         handle->handle = args.fd;
 119
 120                         return TRUE;
 121                 } else
 122                         return screen->driver->export_bo(screen, rsrc->bo->gem_handle, rsrc->bo->slices[0].stride, handle);
 123         }
 124
 125         return FALSE;
 126 }
 127
 128 static void
 129 panfrost_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 130 {
 131         //DBG("TODO %s\n", __func__);
 132 }
 133
 134 static struct pipe_surface *
 135 panfrost_create_surface(struct pipe_context *pipe,
 136                         struct pipe_resource *pt,
 137                         const struct pipe_surface *surf_tmpl)
 138 {
 139         struct pipe_surface *ps = NULL;
 140
 141         ps = CALLOC_STRUCT(pipe_surface);
 142
 143         if (ps) {
 144                 pipe_reference_init(&ps->reference, 1);
 145                 pipe_resource_reference(&ps->texture, pt);
 146                 ps->context = pipe;
 147                 ps->format = surf_tmpl->format;
 148
 149                 if (pt->target != PIPE_BUFFER) {
 150                         assert(surf_tmpl->u.tex.level <= pt->last_level);
 151                         ps->width = u_minify(pt->width0, surf_tmpl->u.tex.level);
 152                         ps->height = u_minify(pt->height0, surf_tmpl->u.tex.level);
 153                         ps->u.tex.level = surf_tmpl->u.tex.level;
 154                         ps->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
 155                         ps->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
 156                 } else {
 157                         /* setting width as number of elements should get us correct renderbuffer width */
 158                         ps->width = surf_tmpl->u.buf.last_element - surf_tmpl->u.buf.first_element + 1;
 159                         ps->height = pt->height0;
 160                         ps->u.buf.first_element = surf_tmpl->u.buf.first_element;
 161                         ps->u.buf.last_element = surf_tmpl->u.buf.last_element;
 162                         assert(ps->u.buf.first_element <= ps->u.buf.last_element);
 163                         assert(ps->u.buf.last_element < ps->width);
 164                 }
 165         }
 166
 167         return ps;
 168 }
 169
 170 static void
 171 panfrost_surface_destroy(struct pipe_context *pipe,
 172                          struct pipe_surface *surf)
 173 {
 174         assert(surf->texture);
 175         pipe_resource_reference(&surf->texture, NULL);
 176         free(surf);
 177 }
 178
 179 static void
 180 panfrost_setup_slices(const struct pipe_resource *tmpl, struct panfrost_bo *bo)
 181 {
 182         unsigned width = tmpl->width0;
 183         unsigned height = tmpl->height0;
 184         unsigned bytes_per_pixel = util_format_get_blocksize(tmpl->format);
 185
 186         /* Tiled operates blockwise; linear is packed. Also, anything
 187          * we render to has to be tile-aligned. Maybe not strictly
 188          * necessary, but we're not *that* pressed for memory and it
 189          * makes code a lot simpler */
 190
 191         bool renderable = tmpl->bind &
 192                 (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL);
 193         bool tiled = bo->layout == PAN_TILED;
 194         bool should_align = renderable || tiled;
 195
 196         unsigned offset = 0;
 197
 198         for (unsigned l = 0; l <= tmpl->last_level; ++l) {
 199                 struct panfrost_slice *slice = &bo->slices[l];
 200
 201                 unsigned effective_width = width;
 202                 unsigned effective_height = height;
 203
 204                 if (should_align) {
 205                         effective_width = ALIGN(effective_width, 16);
 206                         effective_height = ALIGN(effective_height, 16);
 207                 }
 208
 209                 slice->offset = offset;
 210
 211                 /* Compute the would-be stride */
 212                 unsigned stride = bytes_per_pixel * effective_width;
 213
 214                 /* ..but cache-line align it for performance */
 215                 stride = ALIGN(stride, 64);
 216                 slice->stride = stride;
 217
 218                 offset += slice->stride * effective_height;
 219
 220                 width = u_minify(width, 1);
 221                 height = u_minify(height, 1);
 222         }
 223
 224         assert(tmpl->array_size);
 225
 226         bo->cubemap_stride = ALIGN(offset, 64);
 227         bo->size = ALIGN(bo->cubemap_stride * tmpl->array_size, 4096);
 228 }
 229
 230 static struct panfrost_bo *
 231 panfrost_create_bo(struct panfrost_screen *screen, const struct pipe_resource *template)
 232 {
 233         struct panfrost_bo *bo = CALLOC_STRUCT(panfrost_bo);
 234         pipe_reference_init(&bo->reference, 1);
 235
 236         /* Based on the usage, figure out what storing will be used. There are
 237          * various tradeoffs:
 238          *
 239          * Linear: the basic format, bad for memory bandwidth, bad for cache
 240          * use. Zero-copy, though. Renderable.
 241          *
 242          * Tiled: Not compressed, but cache-optimized. Expensive to write into
 243          * (due to software tiling), but cheap to sample from. Ideal for most
 244          * textures.
 245          *
 246          * AFBC: Compressed and renderable (so always desirable for non-scanout
 247          * rendertargets). Cheap to sample from. The format is black box, so we
 248          * can't read/write from software.
 249          */
 250
 251         /* Tiling textures is almost always faster, unless we only use it once */
 252         bool should_tile = (template->usage != PIPE_USAGE_STREAM) && (template->bind & PIPE_BIND_SAMPLER_VIEW);
 253
 254         /* For unclear reasons, depth/stencil is faster linear than AFBC, so
 255          * make sure it's linear */
 256
 257         if (template->bind & PIPE_BIND_DEPTH_STENCIL)
 258                 should_tile = false;
 259
 260         /* Set the layout appropriately */
 261         bo->layout = should_tile ? PAN_TILED : PAN_LINEAR;
 262
 263         panfrost_setup_slices(template, bo);
 264
 265         if (bo->layout == PAN_TILED || bo->layout == PAN_LINEAR) {
 266                 struct panfrost_memory mem;
 267
 268                 screen->driver->allocate_slab(screen, &mem, bo->size / 4096, true, 0, 0, 0);
 269
 270                 bo->cpu = mem.cpu;
 271                 bo->gpu = mem.gpu;
 272                 bo->gem_handle = mem.gem_handle;
 273         }
 274
 275         return bo;
 276 }
 277
 278 static struct pipe_resource *
 279 panfrost_resource_create(struct pipe_screen *screen,
 280                          const struct pipe_resource *template)
 281 {
 282         struct panfrost_resource *so = CALLOC_STRUCT(panfrost_resource);
 283         struct panfrost_screen *pscreen = (struct panfrost_screen *) screen;
 284
 285         so->base = *template;
 286         so->base.screen = screen;
 287
 288         pipe_reference_init(&so->base.reference, 1);
 289
 290         /* Make sure we're familiar */
 291         switch (template->target) {
 292                 case PIPE_BUFFER:
 293                 case PIPE_TEXTURE_1D:
 294                 case PIPE_TEXTURE_2D:
 295                 case PIPE_TEXTURE_3D:
 296                 case PIPE_TEXTURE_CUBE:
 297                 case PIPE_TEXTURE_RECT:
 298                         break;
 299                 default:
 300                         DBG("Unknown texture target %d\n", template->target);
 301                         assert(0);
 302         }
 303
 304         util_range_init(&so->valid_buffer_range);
 305
 306         if (template->bind & PIPE_BIND_DISPLAY_TARGET ||
 307             template->bind & PIPE_BIND_SCANOUT ||
 308             template->bind & PIPE_BIND_SHARED) {
 309                 struct pipe_resource scanout_templat = *template;
 310                 struct renderonly_scanout *scanout;
 311                 struct winsys_handle handle;
 312
 313                 scanout = renderonly_scanout_for_resource(&scanout_templat,
 314                                                           pscreen->ro, &handle);
 315                 if (!scanout)
 316                         return NULL;
 317
 318                 assert(handle.type == WINSYS_HANDLE_TYPE_FD);
 319                 /* TODO: handle modifiers? */
 320                 so = pan_resource(screen->resource_from_handle(screen, template,
 321                                                                  &handle,
 322                                                                  PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE));
 323                 close(handle.handle);
 324                 if (!so)
 325                         return NULL;
 326
 327                 so->scanout = scanout;
 328                 pscreen->display_target = so;
 329         } else {
 330                 so->bo = panfrost_create_bo(pscreen, template);
 331         }
 332
 333         return (struct pipe_resource *)so;
 334 }
 335
 336 static void
 337 panfrost_destroy_bo(struct panfrost_screen *screen, struct panfrost_bo *pbo)
 338 {
 339         struct panfrost_bo *bo = (struct panfrost_bo *)pbo;
 340
 341         if ((bo->layout == PAN_LINEAR || bo->layout == PAN_TILED) &&
 342                         !bo->imported) {
 343                 struct panfrost_memory mem = {
 344                         .cpu = bo->cpu,
 345                         .gpu = bo->gpu,
 346                         .size = bo->size,
 347                         .gem_handle = bo->gem_handle,
 348                 };
 349
 350                 screen->driver->free_slab(screen, &mem);
 351         }
 352
 353         if (bo->layout == PAN_AFBC) {
 354                 /* TODO */
 355                 DBG("--leaking afbc (%d bytes)--\n", bo->afbc_metadata_size);
 356         }
 357
 358         if (bo->has_checksum) {
 359                 struct panfrost_memory mem = {
 360                         .cpu = bo->checksum_slab.cpu,
 361                         .gpu = bo->checksum_slab.gpu,
 362                         .size = bo->checksum_slab.size,
 363                         .gem_handle = bo->checksum_slab.gem_handle,
 364                 };
 365
 366                 screen->driver->free_slab(screen, &mem);
 367         }
 368
 369         if (bo->imported) {
 370                 screen->driver->free_imported_bo(screen, bo);
 371         }
 372 }
 373
 374 void
 375 panfrost_bo_reference(struct panfrost_bo *bo)
 376 {
 377         pipe_reference(NULL, &bo->reference);
 378 }
 379
 380 void
 381 panfrost_bo_unreference(struct pipe_screen *screen, struct panfrost_bo *bo)
 382 {
 383         /* When the reference count goes to zero, we need to cleanup */
 384
 385         if (pipe_reference(&bo->reference, NULL)) {
 386                 panfrost_destroy_bo(pan_screen(screen), bo);
 387         }
 388 }
 389
 390 static void
 391 panfrost_resource_destroy(struct pipe_screen *screen,
 392                           struct pipe_resource *pt)
 393 {
 394         struct panfrost_screen *pscreen = pan_screen(screen);
 395         struct panfrost_resource *rsrc = (struct panfrost_resource *) pt;
 396
 397         if (rsrc->scanout)
 398                 renderonly_scanout_destroy(rsrc->scanout, pscreen->ro);
 399
 400         if (rsrc->bo)
 401                 panfrost_bo_unreference(screen, rsrc->bo);
 402
 403         util_range_destroy(&rsrc->valid_buffer_range);
 404         FREE(rsrc);
 405 }
 406
 407 static void *
 408 panfrost_transfer_map(struct pipe_context *pctx,
 409                       struct pipe_resource *resource,
 410                       unsigned level,
 411                       unsigned usage,  /* a combination of PIPE_TRANSFER_x */
 412                       const struct pipe_box *box,
 413                       struct pipe_transfer **out_transfer)
 414 {
 415         int bytes_per_pixel = util_format_get_blocksize(resource->format);
 416         struct panfrost_resource *rsrc = pan_resource(resource);
 417         struct panfrost_bo *bo = rsrc->bo;
 418
 419         struct panfrost_gtransfer *transfer = CALLOC_STRUCT(panfrost_gtransfer);
 420         transfer->base.level = level;
 421         transfer->base.usage = usage;
 422         transfer->base.box = *box;
 423
 424         pipe_resource_reference(&transfer->base.resource, resource);
 425
 426         *out_transfer = &transfer->base;
 427
 428         /* Check if we're bound for rendering and this is a read pixels. If so,
 429          * we need to flush */
 430
 431         struct panfrost_context *ctx = pan_context(pctx);
 432         struct pipe_framebuffer_state *fb = &ctx->pipe_framebuffer;
 433
 434         bool is_bound = false;
 435
 436         for (unsigned c = 0; c < fb->nr_cbufs; ++c) {
 437                 is_bound |= fb->cbufs[c]->texture == resource;
 438         }
 439
 440         if (is_bound && (usage & PIPE_TRANSFER_READ)) {
 441                 assert(level == 0);
 442                 panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME);
 443         }
 444
 445         /* TODO: Respect usage flags */
 446
 447         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
 448                 /* TODO: reallocate */
 449                 //printf("debug: Missed reallocate\n");
 450         } else if ((usage & PIPE_TRANSFER_WRITE)
 451                         && resource->target == PIPE_BUFFER
 452                         && !util_ranges_intersect(&rsrc->valid_buffer_range, box->x, box->x + box->width)) {
 453                 /* No flush for writes to uninitialized */
 454         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 455                 if (usage & PIPE_TRANSFER_WRITE) {
 456                         /* STUB: flush reading */
 457                         //printf("debug: missed reading flush %d\n", resource->target);
 458                 } else if (usage & PIPE_TRANSFER_READ) {
 459                         /* STUB: flush writing */
 460                         //printf("debug: missed writing flush %d (%d-%d)\n", resource->target, box->x, box->x + box->width);
 461                 } else {
 462                         /* Why are you even mapping?! */
 463                 }
 464         }
 465
 466         if (bo->layout != PAN_LINEAR) {
 467                 /* Non-linear resources need to be indirectly mapped */
 468
 469                 if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
 470                         return NULL;
 471
 472                 transfer->base.stride = box->width * bytes_per_pixel;
 473                 transfer->base.layer_stride = transfer->base.stride * box->height;
 474
 475                 /* TODO: Reads */
 476                 transfer->map = malloc(transfer->base.layer_stride * box->depth);
 477
 478                 return transfer->map;
 479         } else {
 480                 transfer->base.stride = bo->slices[level].stride;
 481                 transfer->base.layer_stride = bo->cubemap_stride;
 482
 483                 return bo->cpu
 484                         + bo->slices[level].offset
 485                         + transfer->base.box.z * bo->cubemap_stride
 486                         + transfer->base.box.y * bo->slices[level].stride
 487                         + transfer->base.box.x * bytes_per_pixel;
 488         }
 489 }
 490
 491 static void
 492 panfrost_tile_texture(struct panfrost_screen *screen, struct panfrost_resource *rsrc, struct panfrost_gtransfer *trans)
 493 {
 494         struct panfrost_bo *bo = (struct panfrost_bo *)rsrc->bo;
 495
 496         unsigned level = trans->base.level;
 497
 498         panfrost_texture_swizzle(
 499                         trans->base.box.x,
 500                         trans->base.box.y,
 501                         trans->base.box.width,
 502                         trans->base.box.height,
 503                         util_format_get_blocksize(rsrc->base.format),
 504                         u_minify(rsrc->base.width0, level),
 505                         trans->map,
 506                         bo->cpu
 507                                 + bo->slices[level].offset
 508                                 + bo->cubemap_stride * trans->base.box.z
 509                         );
 510 }
 511
 512 static void
 513 panfrost_transfer_unmap(struct pipe_context *pctx,
 514                         struct pipe_transfer *transfer)
 515 {
 516         struct panfrost_context *ctx = pan_context(pctx);
 517
 518         /* Gallium expects writeback here, so we tile */
 519
 520         struct panfrost_gtransfer *trans = pan_transfer(transfer);
 521         struct panfrost_resource *prsrc = (struct panfrost_resource *) transfer->resource;
 522
 523         if (trans->map) {
 524                 struct panfrost_bo *bo = prsrc->bo;
 525
 526                 if (transfer->usage & PIPE_TRANSFER_WRITE) {
 527
 528                         if (bo->layout == PAN_AFBC) {
 529                                 DBG("Unimplemented: writes to AFBC\n");
 530                         } else if (bo->layout == PAN_TILED) {
 531                                 struct pipe_context *gallium = (struct pipe_context *) ctx;
 532                                 struct panfrost_screen *screen = pan_screen(gallium->screen);
 533                                 assert(transfer->box.depth == 1);
 534                                 panfrost_tile_texture(screen, prsrc, trans);
 535                         }
 536                 }
 537
 538                 free(trans->map);
 539         }
 540
 541
 542         util_range_add(&prsrc->valid_buffer_range,
 543                         transfer->box.x,
 544                         transfer->box.x + transfer->box.width);
 545
 546         /* Derefence the resource */
 547         pipe_resource_reference(&transfer->resource, NULL);
 548
 549         /* Transfer itself is CALLOCed at the moment */
 550         free(transfer);
 551 }
 552
 553 static void
 554 panfrost_transfer_flush_region(struct pipe_context *pctx,
 555                 struct pipe_transfer *transfer,
 556                 const struct pipe_box *box)
 557 {
 558         struct panfrost_resource *rsc = pan_resource(transfer->resource);
 559
 560         if (transfer->resource->target == PIPE_BUFFER) {
 561                 util_range_add(&rsc->valid_buffer_range,
 562                                            transfer->box.x + box->x,
 563                                            transfer->box.x + box->x + box->width);
 564         }
 565 }
 566
 567 static struct pb_slab *
 568 panfrost_slab_alloc(void *priv, unsigned heap, unsigned entry_size, unsigned group_index)
 569 {
 570         struct panfrost_screen *screen = (struct panfrost_screen *) priv;
 571         struct panfrost_memory *mem = CALLOC_STRUCT(panfrost_memory);
 572
 573         size_t slab_size = (1 << (MAX_SLAB_ENTRY_SIZE + 1));
 574
 575         mem->slab.num_entries = slab_size / entry_size;
 576         mem->slab.num_free = mem->slab.num_entries;
 577
 578         LIST_INITHEAD(&mem->slab.free);
 579         for (unsigned i = 0; i < mem->slab.num_entries; ++i) {
 580                 /* Create a slab entry */
 581                 struct panfrost_memory_entry *entry = CALLOC_STRUCT(panfrost_memory_entry);
 582                 entry->offset = entry_size * i;
 583
 584                 entry->base.slab = &mem->slab;
 585                 entry->base.group_index = group_index;
 586
 587                 LIST_ADDTAIL(&entry->base.head, &mem->slab.free);
 588         }
 589
 590         /* Actually allocate the memory from kernel-space. Mapped, same_va, no
 591          * special flags */
 592
 593         screen->driver->allocate_slab(screen, mem, slab_size / 4096, true, 0, 0, 0);
 594
 595         return &mem->slab;
 596 }
 597
 598 static bool
 599 panfrost_slab_can_reclaim(void *priv, struct pb_slab_entry *entry)
 600 {
 601         struct panfrost_memory_entry *p_entry = (struct panfrost_memory_entry *) entry;
 602         return p_entry->freed;
 603 }
 604
 605 static void
 606 panfrost_slab_free(void *priv, struct pb_slab *slab)
 607 {
 608         struct panfrost_memory *mem = (struct panfrost_memory *) slab;
 609         struct panfrost_screen *screen = (struct panfrost_screen *) priv;
 610
 611         screen->driver->free_slab(screen, mem);
 612 }
 613
 614 static void
 615 panfrost_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 616 {
 617         //DBG("TODO %s\n", __func__);
 618 }
 619
 620 static enum pipe_format
 621 panfrost_resource_get_internal_format(struct pipe_resource *prsrc)
 622 {
 623         return prsrc->format;
 624 }
 625
 626 static void
 627 panfrost_resource_set_stencil(struct pipe_resource *prsrc,
 628                               struct pipe_resource *stencil)
 629 {
 630         pan_resource(prsrc)->separate_stencil = pan_resource(stencil);
 631 }
 632
 633 static struct pipe_resource *
 634 panfrost_resource_get_stencil(struct pipe_resource *prsrc)
 635 {
 636         return &pan_resource(prsrc)->separate_stencil->base;
 637 }
 638
 639 static const struct u_transfer_vtbl transfer_vtbl = {
 640         .resource_create          = panfrost_resource_create,
 641         .resource_destroy         = panfrost_resource_destroy,
 642         .transfer_map             = panfrost_transfer_map,
 643         .transfer_unmap           = panfrost_transfer_unmap,
 644         .transfer_flush_region    = panfrost_transfer_flush_region,
 645         .get_internal_format      = panfrost_resource_get_internal_format,
 646         .set_stencil              = panfrost_resource_set_stencil,
 647         .get_stencil              = panfrost_resource_get_stencil,
 648 };
 649
 650 void
 651 panfrost_resource_screen_init(struct panfrost_screen *pscreen)
 652 {
 653         //pscreen->base.resource_create_with_modifiers =
 654         //        panfrost_resource_create_with_modifiers;
 655         pscreen->base.resource_create = u_transfer_helper_resource_create;
 656         pscreen->base.resource_destroy = u_transfer_helper_resource_destroy;
 657         pscreen->base.resource_from_handle = panfrost_resource_from_handle;
 658         pscreen->base.resource_get_handle = panfrost_resource_get_handle;
 659         pscreen->base.transfer_helper = u_transfer_helper_create(&transfer_vtbl,
 660                                                             true, false,
 661                                                             true, true);
 662
 663         pb_slabs_init(&pscreen->slabs,
 664                         MIN_SLAB_ENTRY_SIZE,
 665                         MAX_SLAB_ENTRY_SIZE,
 666
 667                         3, /* Number of heaps */
 668
 669                         pscreen,
 670
 671                         panfrost_slab_can_reclaim,
 672                         panfrost_slab_alloc,
 673                         panfrost_slab_free);
 674 }
 675
 676 void
 677 panfrost_resource_context_init(struct pipe_context *pctx)
 678 {
 679         pctx->transfer_map = u_transfer_helper_transfer_map;
 680         pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
 681         pctx->transfer_unmap = u_transfer_helper_transfer_unmap;
 682         pctx->buffer_subdata = u_default_buffer_subdata;
 683         pctx->create_surface = panfrost_create_surface;
 684         pctx->surface_destroy = panfrost_surface_destroy;
 685         pctx->resource_copy_region = util_resource_copy_region;
 686         pctx->blit = panfrost_blit;
 687         pctx->flush_resource = panfrost_flush_resource;
 688         pctx->invalidate_resource = panfrost_invalidate_resource;
 689         pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
 690         pctx->buffer_subdata = u_default_buffer_subdata;
 691         pctx->texture_subdata = u_default_texture_subdata;
 692 }