src/gallium/drivers/etnaviv/etnaviv_resource.c

   1 /*
   2  * Copyright (c) 2012-2015 Etnaviv 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  * Authors:
  24  *    Wladimir J. van der Laan <laanwj@gmail.com>
  25  */
  26
  27 #include "etnaviv_resource.h"
  28
  29 #include "hw/common.xml.h"
  30
  31 #include "etnaviv_context.h"
  32 #include "etnaviv_debug.h"
  33 #include "etnaviv_screen.h"
  34 #include "etnaviv_translate.h"
  35
  36 #include "util/hash_table.h"
  37 #include "util/u_inlines.h"
  38 #include "util/u_memory.h"
  39
  40 #include "drm-uapi/drm_fourcc.h"
  41
  42 static enum etna_surface_layout modifier_to_layout(uint64_t modifier)
  43 {
  44    switch (modifier) {
  45    case DRM_FORMAT_MOD_VIVANTE_TILED:
  46       return ETNA_LAYOUT_TILED;
  47    case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
  48       return ETNA_LAYOUT_SUPER_TILED;
  49    case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
  50       return ETNA_LAYOUT_MULTI_TILED;
  51    case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
  52       return ETNA_LAYOUT_MULTI_SUPERTILED;
  53    case DRM_FORMAT_MOD_LINEAR:
  54    default:
  55       return ETNA_LAYOUT_LINEAR;
  56    }
  57 }
  58
  59 static uint64_t layout_to_modifier(enum etna_surface_layout layout)
  60 {
  61    switch (layout) {
  62    case ETNA_LAYOUT_TILED:
  63       return DRM_FORMAT_MOD_VIVANTE_TILED;
  64    case ETNA_LAYOUT_SUPER_TILED:
  65       return DRM_FORMAT_MOD_VIVANTE_SUPER_TILED;
  66    case ETNA_LAYOUT_MULTI_TILED:
  67       return DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED;
  68    case ETNA_LAYOUT_MULTI_SUPERTILED:
  69       return DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED;
  70    case ETNA_LAYOUT_LINEAR:
  71       return DRM_FORMAT_MOD_LINEAR;
  72    default:
  73       return DRM_FORMAT_MOD_INVALID;
  74    }
  75 }
  76
  77 /* A tile is 4x4 pixels, having 'screen->specs.bits_per_tile' of tile status.
  78  * So, in a buffer of N pixels, there are N / (4 * 4) tiles.
  79  * We need N * screen->specs.bits_per_tile / (4 * 4) bits of tile status, or
  80  * N * screen->specs.bits_per_tile / (4 * 4 * 8) bytes.
  81  */
  82 bool
  83 etna_screen_resource_alloc_ts(struct pipe_screen *pscreen,
  84                               struct etna_resource *rsc)
  85 {
  86    struct etna_screen *screen = etna_screen(pscreen);
  87    size_t rt_ts_size, ts_layer_stride;
  88    size_t ts_bits_per_tile, bytes_per_tile;
  89    uint8_t ts_mode = TS_MODE_128B; /* only used by halti5 */
  90
  91    assert(!rsc->ts_bo);
  92
  93    if (screen->specs.halti >= 5) {
  94       ts_bits_per_tile = 4;
  95       bytes_per_tile = ts_mode == TS_MODE_256B ? 256 : 128;
  96    } else {
  97       ts_bits_per_tile = screen->specs.bits_per_tile;
  98       bytes_per_tile = 64;
  99    }
 100
 101    ts_layer_stride = align(DIV_ROUND_UP(rsc->levels[0].layer_stride,
 102                                         bytes_per_tile * 8 / ts_bits_per_tile),
 103                            0x100 * screen->specs.pixel_pipes);
 104    rt_ts_size = ts_layer_stride * rsc->base.array_size;
 105    if (rt_ts_size == 0)
 106       return true;
 107
 108    DBG_F(ETNA_DBG_RESOURCE_MSGS, "%p: Allocating tile status of size %zu",
 109          rsc, rt_ts_size);
 110
 111    struct etna_bo *rt_ts;
 112    rt_ts = etna_bo_new(screen->dev, rt_ts_size, DRM_ETNA_GEM_CACHE_WC);
 113
 114    if (unlikely(!rt_ts)) {
 115       BUG("Problem allocating tile status for resource");
 116       return false;
 117    }
 118
 119    rsc->ts_bo = rt_ts;
 120    rsc->levels[0].ts_offset = 0;
 121    rsc->levels[0].ts_layer_stride = ts_layer_stride;
 122    rsc->levels[0].ts_size = rt_ts_size;
 123    rsc->levels[0].ts_mode = ts_mode;
 124
 125    return true;
 126 }
 127
 128 static boolean
 129 etna_screen_can_create_resource(struct pipe_screen *pscreen,
 130                                 const struct pipe_resource *templat)
 131 {
 132    struct etna_screen *screen = etna_screen(pscreen);
 133    if (!translate_samples_to_xyscale(templat->nr_samples, NULL, NULL, NULL))
 134       return false;
 135
 136    /* templat->bind is not set here, so we must use the minimum sizes */
 137    uint max_size =
 138       MIN2(screen->specs.max_rendertarget_size, screen->specs.max_texture_size);
 139
 140    if (templat->width0 > max_size || templat->height0 > max_size)
 141       return false;
 142
 143    return true;
 144 }
 145
 146 static unsigned
 147 setup_miptree(struct etna_resource *rsc, unsigned paddingX, unsigned paddingY,
 148               unsigned msaa_xscale, unsigned msaa_yscale)
 149 {
 150    struct pipe_resource *prsc = &rsc->base;
 151    unsigned level, size = 0;
 152    unsigned width = prsc->width0;
 153    unsigned height = prsc->height0;
 154    unsigned depth = prsc->depth0;
 155
 156    for (level = 0; level <= prsc->last_level; level++) {
 157       struct etna_resource_level *mip = &rsc->levels[level];
 158
 159       mip->width = width;
 160       mip->height = height;
 161       mip->padded_width = align(width * msaa_xscale, paddingX);
 162       mip->padded_height = align(height * msaa_yscale, paddingY);
 163       mip->stride = util_format_get_stride(prsc->format, mip->padded_width);
 164       mip->offset = size;
 165       mip->layer_stride = mip->stride * util_format_get_nblocksy(prsc->format, mip->padded_height);
 166       mip->size = prsc->array_size * mip->layer_stride;
 167
 168       /* align levels to 64 bytes to be able to render to them */
 169       size += align(mip->size, ETNA_PE_ALIGNMENT) * depth;
 170
 171       width = u_minify(width, 1);
 172       height = u_minify(height, 1);
 173       depth = u_minify(depth, 1);
 174    }
 175
 176    return size;
 177 }
 178
 179 /* Is rs alignment needed? */
 180 static bool is_rs_align(struct etna_screen *screen,
 181                         const struct pipe_resource *tmpl)
 182 {
 183    return screen->specs.use_blt ? false : (
 184       VIV_FEATURE(screen, chipMinorFeatures1, TEXTURE_HALIGN) ||
 185       !etna_resource_sampler_only(tmpl));
 186 }
 187
 188 /* Create a new resource object, using the given template info */
 189 struct pipe_resource *
 190 etna_resource_alloc(struct pipe_screen *pscreen, unsigned layout,
 191                     enum etna_resource_addressing_mode mode, uint64_t modifier,
 192                     const struct pipe_resource *templat)
 193 {
 194    struct etna_screen *screen = etna_screen(pscreen);
 195    struct etna_resource *rsc;
 196    unsigned size;
 197
 198    DBG_F(ETNA_DBG_RESOURCE_MSGS,
 199          "target=%d, format=%s, %ux%ux%u, array_size=%u, "
 200          "last_level=%u, nr_samples=%u, usage=%u, bind=%x, flags=%x",
 201          templat->target, util_format_name(templat->format), templat->width0,
 202          templat->height0, templat->depth0, templat->array_size,
 203          templat->last_level, templat->nr_samples, templat->usage,
 204          templat->bind, templat->flags);
 205
 206    /* Determine scaling for antialiasing, allow override using debug flag */
 207    int nr_samples = templat->nr_samples;
 208    if ((templat->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DEPTH_STENCIL)) &&
 209        !(templat->bind & PIPE_BIND_SAMPLER_VIEW)) {
 210       if (DBG_ENABLED(ETNA_DBG_MSAA_2X))
 211          nr_samples = 2;
 212       if (DBG_ENABLED(ETNA_DBG_MSAA_4X))
 213          nr_samples = 4;
 214    }
 215
 216    int msaa_xscale = 1, msaa_yscale = 1;
 217    if (!translate_samples_to_xyscale(nr_samples, &msaa_xscale, &msaa_yscale, NULL)) {
 218       /* Number of samples not supported */
 219       return NULL;
 220    }
 221
 222    /* Determine needed padding (alignment of height/width) */
 223    unsigned paddingX = 0, paddingY = 0;
 224    unsigned halign = TEXTURE_HALIGN_FOUR;
 225    if (!util_format_is_compressed(templat->format)) {
 226       /* If we have the TEXTURE_HALIGN feature, we can always align to the
 227        * resolve engine's width.  If not, we must not align resources used
 228        * only for textures. If this GPU uses the BLT engine, never do RS align.
 229        */
 230       etna_layout_multiple(layout, screen->specs.pixel_pipes,
 231                            is_rs_align (screen, templat),
 232                            &paddingX, &paddingY, &halign);
 233       assert(paddingX && paddingY);
 234    } else {
 235       /* Compressed textures are padded to their block size, but we don't have
 236        * to do anything special for that. */
 237       paddingX = 1;
 238       paddingY = 1;
 239    }
 240
 241    if (!screen->specs.use_blt && templat->target != PIPE_BUFFER)
 242       etna_adjust_rs_align(screen->specs.pixel_pipes, NULL, &paddingY);
 243
 244    if (templat->bind & PIPE_BIND_SCANOUT && screen->ro->kms_fd >= 0) {
 245       struct pipe_resource scanout_templat = *templat;
 246       struct renderonly_scanout *scanout;
 247       struct winsys_handle handle;
 248
 249       /* pad scanout buffer size to be compatible with the RS */
 250       if (!screen->specs.use_blt && modifier == DRM_FORMAT_MOD_LINEAR)
 251          etna_adjust_rs_align(screen->specs.pixel_pipes, &paddingX, &paddingY);
 252
 253       scanout_templat.width0 = align(scanout_templat.width0, paddingX);
 254       scanout_templat.height0 = align(scanout_templat.height0, paddingY);
 255
 256       scanout = renderonly_scanout_for_resource(&scanout_templat,
 257                                                 screen->ro, &handle);
 258       if (!scanout)
 259          return NULL;
 260
 261       assert(handle.type == WINSYS_HANDLE_TYPE_FD);
 262       handle.modifier = modifier;
 263       rsc = etna_resource(pscreen->resource_from_handle(pscreen, templat,
 264                                                         &handle,
 265                                                         PIPE_HANDLE_USAGE_FRAMEBUFFER_WRITE));
 266       close(handle.handle);
 267       if (!rsc)
 268          return NULL;
 269
 270       rsc->scanout = scanout;
 271
 272       return &rsc->base;
 273    }
 274
 275    rsc = CALLOC_STRUCT(etna_resource);
 276    if (!rsc)
 277       return NULL;
 278
 279    rsc->base = *templat;
 280    rsc->base.screen = pscreen;
 281    rsc->base.nr_samples = nr_samples;
 282    rsc->layout = layout;
 283    rsc->halign = halign;
 284    rsc->addressing_mode = mode;
 285
 286    pipe_reference_init(&rsc->base.reference, 1);
 287
 288    size = setup_miptree(rsc, paddingX, paddingY, msaa_xscale, msaa_yscale);
 289
 290    uint32_t flags = DRM_ETNA_GEM_CACHE_WC;
 291    if (templat->bind & PIPE_BIND_VERTEX_BUFFER)
 292       flags |= DRM_ETNA_GEM_FORCE_MMU;
 293    struct etna_bo *bo = etna_bo_new(screen->dev, size, flags);
 294    if (unlikely(bo == NULL)) {
 295       BUG("Problem allocating video memory for resource");
 296       goto free_rsc;
 297    }
 298
 299    rsc->bo = bo;
 300    rsc->ts_bo = 0; /* TS is only created when first bound to surface */
 301
 302    if (DBG_ENABLED(ETNA_DBG_ZERO)) {
 303       void *map = etna_bo_map(bo);
 304       memset(map, 0, size);
 305    }
 306
 307    rsc->pending_ctx = _mesa_set_create(NULL, _mesa_hash_pointer,
 308                                        _mesa_key_pointer_equal);
 309    if (!rsc->pending_ctx)
 310       goto free_rsc;
 311
 312    return &rsc->base;
 313
 314 free_rsc:
 315    FREE(rsc);
 316    return NULL;
 317 }
 318
 319 static struct pipe_resource *
 320 etna_resource_create(struct pipe_screen *pscreen,
 321                      const struct pipe_resource *templat)
 322 {
 323    struct etna_screen *screen = etna_screen(pscreen);
 324
 325    /* Figure out what tiling and address mode to use -- for now, assume that
 326     * texture cannot be linear. there is a capability LINEAR_TEXTURE_SUPPORT
 327     * (supported on gc880 and gc2000 at least), but not sure how it works.
 328     * Buffers always have LINEAR layout.
 329     */
 330    unsigned layout = ETNA_LAYOUT_LINEAR;
 331    enum etna_resource_addressing_mode mode = ETNA_ADDRESSING_MODE_TILED;
 332
 333    if (etna_resource_sampler_only(templat)) {
 334       /* The buffer is only used for texturing, so create something
 335        * directly compatible with the sampler.  Such a buffer can
 336        * never be rendered to. */
 337       layout = ETNA_LAYOUT_TILED;
 338
 339       if (util_format_is_compressed(templat->format))
 340          layout = ETNA_LAYOUT_LINEAR;
 341    } else if (templat->target != PIPE_BUFFER) {
 342       bool want_multitiled = false;
 343       bool want_supertiled = screen->specs.can_supertile;
 344
 345       /* When this GPU supports single-buffer rendering, don't ever enable
 346        * multi-tiling. This replicates the blob behavior on GC3000.
 347        */
 348       if (!screen->specs.single_buffer)
 349          want_multitiled = screen->specs.pixel_pipes > 1;
 350
 351       /* Keep single byte blocksized resources as tiled, since we
 352        * are unable to use the RS blit to de-tile them. However,
 353        * if they're used as a render target or depth/stencil, they
 354        * must be multi-tiled for GPUs with multiple pixel pipes.
 355        * Ignore depth/stencil here, but it is an error for a render
 356        * target.
 357        */
 358       if (util_format_get_blocksize(templat->format) == 1 &&
 359           !(templat->bind & PIPE_BIND_DEPTH_STENCIL)) {
 360          assert(!(templat->bind & PIPE_BIND_RENDER_TARGET && want_multitiled));
 361          want_multitiled = want_supertiled = false;
 362       }
 363
 364       layout = ETNA_LAYOUT_BIT_TILE;
 365       if (want_multitiled)
 366          layout |= ETNA_LAYOUT_BIT_MULTI;
 367       if (want_supertiled)
 368          layout |= ETNA_LAYOUT_BIT_SUPER;
 369    }
 370
 371    if (templat->target == PIPE_TEXTURE_3D)
 372       layout = ETNA_LAYOUT_LINEAR;
 373
 374    /* modifier is only used for scanout surfaces, so safe to use LINEAR here */
 375    return etna_resource_alloc(pscreen, layout, mode, DRM_FORMAT_MOD_LINEAR, templat);
 376 }
 377
 378 enum modifier_priority {
 379    MODIFIER_PRIORITY_INVALID = 0,
 380    MODIFIER_PRIORITY_LINEAR,
 381    MODIFIER_PRIORITY_SPLIT_TILED,
 382    MODIFIER_PRIORITY_SPLIT_SUPER_TILED,
 383    MODIFIER_PRIORITY_TILED,
 384    MODIFIER_PRIORITY_SUPER_TILED,
 385 };
 386
 387 const uint64_t priority_to_modifier[] = {
 388    [MODIFIER_PRIORITY_INVALID] = DRM_FORMAT_MOD_INVALID,
 389    [MODIFIER_PRIORITY_LINEAR] = DRM_FORMAT_MOD_LINEAR,
 390    [MODIFIER_PRIORITY_SPLIT_TILED] = DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED,
 391    [MODIFIER_PRIORITY_SPLIT_SUPER_TILED] = DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED,
 392    [MODIFIER_PRIORITY_TILED] = DRM_FORMAT_MOD_VIVANTE_TILED,
 393    [MODIFIER_PRIORITY_SUPER_TILED] = DRM_FORMAT_MOD_VIVANTE_SUPER_TILED,
 394 };
 395
 396 static uint64_t
 397 select_best_modifier(const struct etna_screen * screen,
 398                      const uint64_t *modifiers, const unsigned count)
 399 {
 400    enum modifier_priority prio = MODIFIER_PRIORITY_INVALID;
 401
 402    for (int i = 0; i < count; i++) {
 403       switch (modifiers[i]) {
 404       case DRM_FORMAT_MOD_VIVANTE_SUPER_TILED:
 405          if ((screen->specs.pixel_pipes > 1 && !screen->specs.single_buffer) ||
 406              !screen->specs.can_supertile)
 407             break;
 408          prio = MAX2(prio, MODIFIER_PRIORITY_SUPER_TILED);
 409          break;
 410       case DRM_FORMAT_MOD_VIVANTE_TILED:
 411          if (screen->specs.pixel_pipes > 1 && !screen->specs.single_buffer)
 412             break;
 413          prio = MAX2(prio, MODIFIER_PRIORITY_TILED);
 414          break;
 415       case DRM_FORMAT_MOD_VIVANTE_SPLIT_SUPER_TILED:
 416          if ((screen->specs.pixel_pipes < 2) || !screen->specs.can_supertile)
 417             break;
 418          prio = MAX2(prio, MODIFIER_PRIORITY_SPLIT_SUPER_TILED);
 419          break;
 420       case DRM_FORMAT_MOD_VIVANTE_SPLIT_TILED:
 421          if (screen->specs.pixel_pipes < 2)
 422             break;
 423          prio = MAX2(prio, MODIFIER_PRIORITY_SPLIT_TILED);
 424          break;
 425       case DRM_FORMAT_MOD_LINEAR:
 426          prio = MAX2(prio, MODIFIER_PRIORITY_LINEAR);
 427          break;
 428       case DRM_FORMAT_MOD_INVALID:
 429       default:
 430          break;
 431       }
 432    }
 433
 434    return priority_to_modifier[prio];
 435 }
 436
 437 static struct pipe_resource *
 438 etna_resource_create_modifiers(struct pipe_screen *pscreen,
 439                                const struct pipe_resource *templat,
 440                                const uint64_t *modifiers, int count)
 441 {
 442    struct etna_screen *screen = etna_screen(pscreen);
 443    struct pipe_resource tmpl = *templat;
 444    uint64_t modifier = select_best_modifier(screen, modifiers, count);
 445
 446    if (modifier == DRM_FORMAT_MOD_INVALID)
 447       return NULL;
 448
 449    /*
 450     * We currently assume that all buffers allocated through this interface
 451     * should be scanout enabled.
 452     */
 453    tmpl.bind |= PIPE_BIND_SCANOUT;
 454
 455    return etna_resource_alloc(pscreen, modifier_to_layout(modifier),
 456                               ETNA_ADDRESSING_MODE_TILED, modifier, &tmpl);
 457 }
 458
 459 static void
 460 etna_resource_changed(struct pipe_screen *pscreen, struct pipe_resource *prsc)
 461 {
 462    struct etna_resource *res = etna_resource(prsc);
 463
 464    if (res->external)
 465       etna_resource(res->external)->seqno++;
 466    else
 467       res->seqno++;
 468 }
 469
 470 static void
 471 etna_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *prsc)
 472 {
 473    struct etna_screen *screen = etna_screen(pscreen);
 474    struct etna_resource *rsc = etna_resource(prsc);
 475
 476    mtx_lock(&screen->lock);
 477    _mesa_set_remove_key(screen->used_resources, rsc);
 478    _mesa_set_destroy(rsc->pending_ctx, NULL);
 479    mtx_unlock(&screen->lock);
 480
 481    if (rsc->bo)
 482       etna_bo_del(rsc->bo);
 483
 484    if (rsc->ts_bo)
 485       etna_bo_del(rsc->ts_bo);
 486
 487    if (rsc->scanout)
 488       renderonly_scanout_destroy(rsc->scanout, etna_screen(pscreen)->ro);
 489
 490    pipe_resource_reference(&rsc->texture, NULL);
 491    pipe_resource_reference(&rsc->external, NULL);
 492
 493    for (unsigned i = 0; i < ETNA_NUM_LOD; i++)
 494       FREE(rsc->levels[i].patch_offsets);
 495
 496    FREE(rsc);
 497 }
 498
 499 static struct pipe_resource *
 500 etna_resource_from_handle(struct pipe_screen *pscreen,
 501                           const struct pipe_resource *tmpl,
 502                           struct winsys_handle *handle, unsigned usage)
 503 {
 504    struct etna_screen *screen = etna_screen(pscreen);
 505    struct etna_resource *rsc;
 506    struct etna_resource_level *level;
 507    struct pipe_resource *prsc;
 508    struct pipe_resource *ptiled = NULL;
 509
 510    DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 511        "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 512        tmpl->target, util_format_name(tmpl->format), tmpl->width0,
 513        tmpl->height0, tmpl->depth0, tmpl->array_size, tmpl->last_level,
 514        tmpl->nr_samples, tmpl->usage, tmpl->bind, tmpl->flags);
 515
 516    rsc = CALLOC_STRUCT(etna_resource);
 517    if (!rsc)
 518       return NULL;
 519
 520    level = &rsc->levels[0];
 521    prsc = &rsc->base;
 522
 523    *prsc = *tmpl;
 524
 525    pipe_reference_init(&prsc->reference, 1);
 526    prsc->screen = pscreen;
 527
 528    rsc->bo = etna_screen_bo_from_handle(pscreen, handle, &level->stride);
 529    if (!rsc->bo)
 530       goto fail;
 531
 532    rsc->seqno = 1;
 533    rsc->layout = modifier_to_layout(handle->modifier);
 534    rsc->halign = TEXTURE_HALIGN_FOUR;
 535    rsc->addressing_mode = ETNA_ADDRESSING_MODE_TILED;
 536
 537
 538    level->width = tmpl->width0;
 539    level->height = tmpl->height0;
 540
 541    /* Determine padding of the imported resource. */
 542    unsigned paddingX = 0, paddingY = 0;
 543    etna_layout_multiple(rsc->layout, screen->specs.pixel_pipes,
 544                         is_rs_align(screen, tmpl),
 545                         &paddingX, &paddingY, &rsc->halign);
 546
 547    if (!screen->specs.use_blt)
 548       etna_adjust_rs_align(screen->specs.pixel_pipes, NULL, &paddingY);
 549    level->padded_width = align(level->width, paddingX);
 550    level->padded_height = align(level->height, paddingY);
 551
 552    level->layer_stride = level->stride * util_format_get_nblocksy(prsc->format,
 553                                                                   level->padded_height);
 554    level->size = level->layer_stride;
 555
 556    /* The DDX must give us a BO which conforms to our padding size.
 557     * The stride of the BO must be greater or equal to our padded
 558     * stride. The size of the BO must accomodate the padded height. */
 559    if (level->stride < util_format_get_stride(tmpl->format, level->padded_width)) {
 560       BUG("BO stride %u is too small for RS engine width padding (%zu, format %s)",
 561           level->stride, util_format_get_stride(tmpl->format, level->padded_width),
 562           util_format_name(tmpl->format));
 563       goto fail;
 564    }
 565    if (etna_bo_size(rsc->bo) < level->stride * level->padded_height) {
 566       BUG("BO size %u is too small for RS engine height padding (%u, format %s)",
 567           etna_bo_size(rsc->bo), level->stride * level->padded_height,
 568           util_format_name(tmpl->format));
 569       goto fail;
 570    }
 571
 572    rsc->pending_ctx = _mesa_set_create(NULL, _mesa_hash_pointer,
 573                                        _mesa_key_pointer_equal);
 574    if (!rsc->pending_ctx)
 575       goto fail;
 576
 577    if (rsc->layout == ETNA_LAYOUT_LINEAR) {
 578       /*
 579        * Both sampler and pixel pipes can't handle linear, create a compatible
 580        * base resource, where we can attach the imported buffer as an external
 581        * resource.
 582        */
 583       struct pipe_resource tiled_templat = *tmpl;
 584
 585       /*
 586        * Remove BIND_SCANOUT to avoid recursion, as etna_resource_create uses
 587        * this function to import the scanout buffer and get a tiled resource.
 588        */
 589       tiled_templat.bind &= ~PIPE_BIND_SCANOUT;
 590
 591       ptiled = etna_resource_create(pscreen, &tiled_templat);
 592       if (!ptiled)
 593          goto fail;
 594
 595       etna_resource(ptiled)->external = prsc;
 596
 597       return ptiled;
 598    }
 599
 600    return prsc;
 601
 602 fail:
 603    etna_resource_destroy(pscreen, prsc);
 604    if (ptiled)
 605       etna_resource_destroy(pscreen, ptiled);
 606
 607    return NULL;
 608 }
 609
 610 static boolean
 611 etna_resource_get_handle(struct pipe_screen *pscreen,
 612                          struct pipe_context *pctx,
 613                          struct pipe_resource *prsc,
 614                          struct winsys_handle *handle, unsigned usage)
 615 {
 616    struct etna_resource *rsc = etna_resource(prsc);
 617    /* Scanout is always attached to the base resource */
 618    struct renderonly_scanout *scanout = rsc->scanout;
 619
 620    /*
 621     * External resources are preferred, so a import->export chain of
 622     * render/sampler incompatible buffers yield the same handle.
 623     */
 624    if (rsc->external)
 625       rsc = etna_resource(rsc->external);
 626
 627    handle->stride = rsc->levels[0].stride;
 628    handle->offset = rsc->levels[0].offset;
 629    handle->modifier = layout_to_modifier(rsc->layout);
 630
 631    if (handle->type == WINSYS_HANDLE_TYPE_SHARED) {
 632       return etna_bo_get_name(rsc->bo, &handle->handle) == 0;
 633    } else if (handle->type == WINSYS_HANDLE_TYPE_KMS) {
 634       if (renderonly_get_handle(scanout, handle)) {
 635          return TRUE;
 636       } else {
 637          handle->handle = etna_bo_handle(rsc->bo);
 638          return TRUE;
 639       }
 640    } else if (handle->type == WINSYS_HANDLE_TYPE_FD) {
 641       handle->handle = etna_bo_dmabuf(rsc->bo);
 642       return TRUE;
 643    } else {
 644       return FALSE;
 645    }
 646 }
 647
 648 void
 649 etna_resource_used(struct etna_context *ctx, struct pipe_resource *prsc,
 650                    enum etna_resource_status status)
 651 {
 652    struct etna_screen *screen = ctx->screen;
 653    struct etna_resource *rsc;
 654
 655    if (!prsc)
 656       return;
 657
 658    rsc = etna_resource(prsc);
 659
 660    mtx_lock(&screen->lock);
 661
 662    /*
 663     * if we are pending read or write by any other context or
 664     * if reading a resource pending a write, then
 665     * flush all the contexts to maintain coherency
 666     */
 667    if (((status & ETNA_PENDING_WRITE) && rsc->status) ||
 668        ((status & ETNA_PENDING_READ) && (rsc->status & ETNA_PENDING_WRITE))) {
 669       set_foreach(rsc->pending_ctx, entry) {
 670          struct etna_context *extctx = (struct etna_context *)entry->key;
 671          struct pipe_context *pctx = &extctx->base;
 672
 673          if (extctx == ctx)
 674             continue;
 675
 676          pctx->flush(pctx, NULL, 0);
 677          /* It's safe to clear the status here. If we need to flush it means
 678           * either another context had the resource in exclusive (write) use,
 679           * or we transition the resource to exclusive use in our context.
 680           * In both cases the new status accurately reflects the resource use
 681           * after the flush.
 682           */
 683          rsc->status = 0;
 684       }
 685    }
 686
 687    rsc->status |= status;
 688
 689    _mesa_set_add(screen->used_resources, rsc);
 690    _mesa_set_add(rsc->pending_ctx, ctx);
 691
 692    mtx_unlock(&screen->lock);
 693 }
 694
 695 bool
 696 etna_resource_has_valid_ts(struct etna_resource *rsc)
 697 {
 698    if (!rsc->ts_bo)
 699       return false;
 700
 701    for (int level = 0; level <= rsc->base.last_level; level++)
 702       if (rsc->levels[level].ts_valid)
 703          return true;
 704
 705    return false;
 706 }
 707
 708 void
 709 etna_resource_screen_init(struct pipe_screen *pscreen)
 710 {
 711    pscreen->can_create_resource = etna_screen_can_create_resource;
 712    pscreen->resource_create = etna_resource_create;
 713    pscreen->resource_create_with_modifiers = etna_resource_create_modifiers;
 714    pscreen->resource_from_handle = etna_resource_from_handle;
 715    pscreen->resource_get_handle = etna_resource_get_handle;
 716    pscreen->resource_changed = etna_resource_changed;
 717    pscreen->resource_destroy = etna_resource_destroy;
 718 }