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Member "mesa-20.1.8/src/gallium/drivers/vc4/vc4_resource.c" (16 Sep 2020, 46326 Bytes) of package /linux/misc/mesa-20.1.8.tar.xz:


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    1 /*
    2  * Copyright © 2014 Broadcom
    3  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
    4  *
    5  * Permission is hereby granted, free of charge, to any person obtaining a
    6  * copy of this software and associated documentation files (the "Software"),
    7  * to deal in the Software without restriction, including without limitation
    8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    9  * and/or sell copies of the Software, and to permit persons to whom the
   10  * Software is furnished to do so, subject to the following conditions:
   11  *
   12  * The above copyright notice and this permission notice (including the next
   13  * paragraph) shall be included in all copies or substantial portions of the
   14  * Software.
   15  *
   16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
   21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
   22  * IN THE SOFTWARE.
   23  */
   24 
   25 #include "pipe/p_defines.h"
   26 #include "util/u_blit.h"
   27 #include "util/u_memory.h"
   28 #include "util/format/u_format.h"
   29 #include "util/u_inlines.h"
   30 #include "util/u_surface.h"
   31 #include "util/u_transfer_helper.h"
   32 #include "util/u_upload_mgr.h"
   33 #include "util/u_drm.h"
   34 
   35 #include "drm-uapi/drm_fourcc.h"
   36 #include "drm-uapi/vc4_drm.h"
   37 #include "vc4_screen.h"
   38 #include "vc4_context.h"
   39 #include "vc4_resource.h"
   40 #include "vc4_tiling.h"
   41 
   42 static bool
   43 vc4_resource_bo_alloc(struct vc4_resource *rsc)
   44 {
   45         struct pipe_resource *prsc = &rsc->base;
   46         struct pipe_screen *pscreen = prsc->screen;
   47         struct vc4_bo *bo;
   48 
   49         if (vc4_debug & VC4_DEBUG_SURFACE) {
   50                 fprintf(stderr, "alloc %p: size %d + offset %d -> %d\n",
   51                         rsc,
   52                         rsc->slices[0].size,
   53                         rsc->slices[0].offset,
   54                         rsc->slices[0].offset +
   55                         rsc->slices[0].size +
   56                         rsc->cube_map_stride * (prsc->array_size - 1));
   57         }
   58 
   59         bo = vc4_bo_alloc(vc4_screen(pscreen),
   60                           rsc->slices[0].offset +
   61                           rsc->slices[0].size +
   62                           rsc->cube_map_stride * (prsc->array_size - 1),
   63                           "resource");
   64         if (bo) {
   65                 vc4_bo_unreference(&rsc->bo);
   66                 rsc->bo = bo;
   67                 return true;
   68         } else {
   69                 return false;
   70         }
   71 }
   72 
   73 static void
   74 vc4_resource_transfer_unmap(struct pipe_context *pctx,
   75                             struct pipe_transfer *ptrans)
   76 {
   77         struct vc4_context *vc4 = vc4_context(pctx);
   78         struct vc4_transfer *trans = vc4_transfer(ptrans);
   79 
   80         if (trans->map) {
   81                 struct vc4_resource *rsc = vc4_resource(ptrans->resource);
   82                 struct vc4_resource_slice *slice = &rsc->slices[ptrans->level];
   83 
   84                 if (ptrans->usage & PIPE_TRANSFER_WRITE) {
   85                         vc4_store_tiled_image(rsc->bo->map + slice->offset +
   86                                               ptrans->box.z * rsc->cube_map_stride,
   87                                               slice->stride,
   88                                               trans->map, ptrans->stride,
   89                                               slice->tiling, rsc->cpp,
   90                                               &ptrans->box);
   91                 }
   92                 free(trans->map);
   93         }
   94 
   95         pipe_resource_reference(&ptrans->resource, NULL);
   96         slab_free(&vc4->transfer_pool, ptrans);
   97 }
   98 
   99 static void *
  100 vc4_resource_transfer_map(struct pipe_context *pctx,
  101                           struct pipe_resource *prsc,
  102                           unsigned level, unsigned usage,
  103                           const struct pipe_box *box,
  104                           struct pipe_transfer **pptrans)
  105 {
  106         struct vc4_context *vc4 = vc4_context(pctx);
  107         struct vc4_resource *rsc = vc4_resource(prsc);
  108         struct vc4_transfer *trans;
  109         struct pipe_transfer *ptrans;
  110         enum pipe_format format = prsc->format;
  111         char *buf;
  112 
  113         /* Upgrade DISCARD_RANGE to WHOLE_RESOURCE if the whole resource is
  114          * being mapped.
  115          */
  116         if ((usage & PIPE_TRANSFER_DISCARD_RANGE) &&
  117             !(usage & PIPE_TRANSFER_UNSYNCHRONIZED) &&
  118             !(prsc->flags & PIPE_RESOURCE_FLAG_MAP_PERSISTENT) &&
  119             prsc->last_level == 0 &&
  120             prsc->width0 == box->width &&
  121             prsc->height0 == box->height &&
  122             prsc->depth0 == box->depth &&
  123             prsc->array_size == 1 &&
  124             rsc->bo->private) {
  125                 usage |= PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE;
  126         }
  127 
  128         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
  129                 if (vc4_resource_bo_alloc(rsc)) {
  130                         /* If it might be bound as one of our vertex buffers,
  131                          * make sure we re-emit vertex buffer state.
  132                          */
  133                         if (prsc->bind & PIPE_BIND_VERTEX_BUFFER)
  134                                 vc4->dirty |= VC4_DIRTY_VTXBUF;
  135                 } else {
  136                         /* If we failed to reallocate, flush users so that we
  137                          * don't violate any syncing requirements.
  138                          */
  139                         vc4_flush_jobs_reading_resource(vc4, prsc);
  140                 }
  141         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
  142                 /* If we're writing and the buffer is being used by the CL, we
  143                  * have to flush the CL first.  If we're only reading, we need
  144                  * to flush if the CL has written our buffer.
  145                  */
  146                 if (usage & PIPE_TRANSFER_WRITE)
  147                         vc4_flush_jobs_reading_resource(vc4, prsc);
  148                 else
  149                         vc4_flush_jobs_writing_resource(vc4, prsc);
  150         }
  151 
  152         if (usage & PIPE_TRANSFER_WRITE) {
  153                 rsc->writes++;
  154                 rsc->initialized_buffers = ~0;
  155         }
  156 
  157         trans = slab_alloc(&vc4->transfer_pool);
  158         if (!trans)
  159                 return NULL;
  160 
  161         /* XXX: Handle DONTBLOCK, DISCARD_RANGE, PERSISTENT, COHERENT. */
  162 
  163         /* slab_alloc_st() doesn't zero: */
  164         memset(trans, 0, sizeof(*trans));
  165         ptrans = &trans->base;
  166 
  167         pipe_resource_reference(&ptrans->resource, prsc);
  168         ptrans->level = level;
  169         ptrans->usage = usage;
  170         ptrans->box = *box;
  171 
  172         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
  173                 buf = vc4_bo_map_unsynchronized(rsc->bo);
  174         else
  175                 buf = vc4_bo_map(rsc->bo);
  176         if (!buf) {
  177                 fprintf(stderr, "Failed to map bo\n");
  178                 goto fail;
  179         }
  180 
  181         *pptrans = ptrans;
  182 
  183         struct vc4_resource_slice *slice = &rsc->slices[level];
  184         if (rsc->tiled) {
  185                 /* No direct mappings of tiled, since we need to manually
  186                  * tile/untile.
  187                  */
  188                 if (usage & PIPE_TRANSFER_MAP_DIRECTLY)
  189                         return NULL;
  190 
  191                 if (format == PIPE_FORMAT_ETC1_RGB8) {
  192                         /* ETC1 is arranged as 64-bit blocks, where each block
  193                          * is 4x4 pixels.  Texture tiling operates on the
  194                          * 64-bit block the way it would an uncompressed
  195                          * pixels.
  196                          */
  197                         assert(!(ptrans->box.x & 3));
  198                         assert(!(ptrans->box.y & 3));
  199                         ptrans->box.x >>= 2;
  200                         ptrans->box.y >>= 2;
  201                         ptrans->box.width = (ptrans->box.width + 3) >> 2;
  202                         ptrans->box.height = (ptrans->box.height + 3) >> 2;
  203                 }
  204 
  205                 ptrans->stride = ptrans->box.width * rsc->cpp;
  206                 ptrans->layer_stride = ptrans->stride * ptrans->box.height;
  207 
  208                 trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
  209 
  210                 if (usage & PIPE_TRANSFER_READ) {
  211                         vc4_load_tiled_image(trans->map, ptrans->stride,
  212                                              buf + slice->offset +
  213                                              ptrans->box.z * rsc->cube_map_stride,
  214                                              slice->stride,
  215                                              slice->tiling, rsc->cpp,
  216                                              &ptrans->box);
  217                 }
  218                 return trans->map;
  219         } else {
  220                 ptrans->stride = slice->stride;
  221                 ptrans->layer_stride = ptrans->stride;
  222 
  223                 return buf + slice->offset +
  224                         ptrans->box.y / util_format_get_blockheight(format) * ptrans->stride +
  225                         ptrans->box.x / util_format_get_blockwidth(format) * rsc->cpp +
  226                         ptrans->box.z * rsc->cube_map_stride;
  227         }
  228 
  229 
  230 fail:
  231         vc4_resource_transfer_unmap(pctx, ptrans);
  232         return NULL;
  233 }
  234 
  235 static void
  236 vc4_texture_subdata(struct pipe_context *pctx,
  237                     struct pipe_resource *prsc,
  238                     unsigned level,
  239                     unsigned usage,
  240                     const struct pipe_box *box,
  241                     const void *data,
  242                     unsigned stride,
  243                     unsigned layer_stride)
  244 {
  245         struct vc4_resource *rsc = vc4_resource(prsc);
  246         struct vc4_resource_slice *slice = &rsc->slices[level];
  247 
  248         /* For a direct mapping, we can just take the u_transfer path. */
  249         if (!rsc->tiled ||
  250             box->depth != 1 ||
  251             (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)) {
  252                 return u_default_texture_subdata(pctx, prsc, level, usage, box,
  253                                                  data, stride, layer_stride);
  254         }
  255 
  256         /* Otherwise, map and store the texture data directly into the tiled
  257          * texture.
  258          */
  259         void *buf;
  260         if (usage & PIPE_TRANSFER_UNSYNCHRONIZED)
  261                 buf = vc4_bo_map_unsynchronized(rsc->bo);
  262         else
  263                 buf = vc4_bo_map(rsc->bo);
  264 
  265         vc4_store_tiled_image(buf + slice->offset +
  266                               box->z * rsc->cube_map_stride,
  267                               slice->stride,
  268                               (void *)data, stride,
  269                               slice->tiling, rsc->cpp,
  270                               box);
  271 }
  272 
  273 static void
  274 vc4_resource_destroy(struct pipe_screen *pscreen,
  275                      struct pipe_resource *prsc)
  276 {
  277         struct vc4_screen *screen = vc4_screen(pscreen);
  278         struct vc4_resource *rsc = vc4_resource(prsc);
  279         vc4_bo_unreference(&rsc->bo);
  280 
  281         if (rsc->scanout)
  282                 renderonly_scanout_destroy(rsc->scanout, screen->ro);
  283 
  284         free(rsc);
  285 }
  286 
  287 static bool
  288 vc4_resource_get_handle(struct pipe_screen *pscreen,
  289                         struct pipe_context *pctx,
  290                         struct pipe_resource *prsc,
  291                         struct winsys_handle *whandle,
  292                         unsigned usage)
  293 {
  294         struct vc4_screen *screen = vc4_screen(pscreen);
  295         struct vc4_resource *rsc = vc4_resource(prsc);
  296 
  297         whandle->stride = rsc->slices[0].stride;
  298         whandle->offset = 0;
  299 
  300         /* If we're passing some reference to our BO out to some other part of
  301          * the system, then we can't do any optimizations about only us being
  302          * the ones seeing it (like BO caching or shadow update avoidance).
  303          */
  304         rsc->bo->private = false;
  305 
  306         if (rsc->tiled)
  307                 whandle->modifier = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
  308         else
  309                 whandle->modifier = DRM_FORMAT_MOD_LINEAR;
  310 
  311         switch (whandle->type) {
  312         case WINSYS_HANDLE_TYPE_SHARED:
  313                 if (screen->ro) {
  314                         /* This could probably be supported, assuming that a
  315                          * control node was used for pl111.
  316                          */
  317                         fprintf(stderr, "flink unsupported with pl111\n");
  318                         return false;
  319                 }
  320 
  321                 return vc4_bo_flink(rsc->bo, &whandle->handle);
  322         case WINSYS_HANDLE_TYPE_KMS:
  323                 if (screen->ro) {
  324                         assert(rsc->scanout);
  325                         return renderonly_get_handle(rsc->scanout, whandle);
  326                 }
  327                 whandle->handle = rsc->bo->handle;
  328                 return true;
  329         case WINSYS_HANDLE_TYPE_FD:
  330                 /* FDs are cross-device, so we can export directly from vc4.
  331                  */
  332                 whandle->handle = vc4_bo_get_dmabuf(rsc->bo);
  333                 return whandle->handle != -1;
  334         }
  335 
  336         return false;
  337 }
  338 
  339 static void
  340 vc4_setup_slices(struct vc4_resource *rsc, const char *caller)
  341 {
  342         struct pipe_resource *prsc = &rsc->base;
  343         uint32_t width = prsc->width0;
  344         uint32_t height = prsc->height0;
  345         if (prsc->format == PIPE_FORMAT_ETC1_RGB8) {
  346                 width = (width + 3) >> 2;
  347                 height = (height + 3) >> 2;
  348         }
  349 
  350         uint32_t pot_width = util_next_power_of_two(width);
  351         uint32_t pot_height = util_next_power_of_two(height);
  352         uint32_t offset = 0;
  353         uint32_t utile_w = vc4_utile_width(rsc->cpp);
  354         uint32_t utile_h = vc4_utile_height(rsc->cpp);
  355 
  356         for (int i = prsc->last_level; i >= 0; i--) {
  357                 struct vc4_resource_slice *slice = &rsc->slices[i];
  358 
  359                 uint32_t level_width, level_height;
  360                 if (i == 0) {
  361                         level_width = width;
  362                         level_height = height;
  363                 } else {
  364                         level_width = u_minify(pot_width, i);
  365                         level_height = u_minify(pot_height, i);
  366                 }
  367 
  368                 if (!rsc->tiled) {
  369                         slice->tiling = VC4_TILING_FORMAT_LINEAR;
  370                         if (prsc->nr_samples > 1) {
  371                                 /* MSAA (4x) surfaces are stored as raw tile buffer contents. */
  372                                 level_width = align(level_width, 32);
  373                                 level_height = align(level_height, 32);
  374                         } else {
  375                                 level_width = align(level_width, utile_w);
  376                         }
  377                 } else {
  378                         if (vc4_size_is_lt(level_width, level_height,
  379                                            rsc->cpp)) {
  380                                 slice->tiling = VC4_TILING_FORMAT_LT;
  381                                 level_width = align(level_width, utile_w);
  382                                 level_height = align(level_height, utile_h);
  383                         } else {
  384                                 slice->tiling = VC4_TILING_FORMAT_T;
  385                                 level_width = align(level_width,
  386                                                     4 * 2 * utile_w);
  387                                 level_height = align(level_height,
  388                                                      4 * 2 * utile_h);
  389                         }
  390                 }
  391 
  392                 slice->offset = offset;
  393                 slice->stride = (level_width * rsc->cpp *
  394                                  MAX2(prsc->nr_samples, 1));
  395                 slice->size = level_height * slice->stride;
  396 
  397                 offset += slice->size;
  398 
  399                 if (vc4_debug & VC4_DEBUG_SURFACE) {
  400                         static const char tiling_chars[] = {
  401                                 [VC4_TILING_FORMAT_LINEAR] = 'R',
  402                                 [VC4_TILING_FORMAT_LT] = 'L',
  403                                 [VC4_TILING_FORMAT_T] = 'T'
  404                         };
  405                         fprintf(stderr,
  406                                 "rsc %s %p (format %s: vc4 %d), %dx%d: "
  407                                 "level %d (%c) -> %dx%d, stride %d@0x%08x\n",
  408                                 caller, rsc,
  409                                 util_format_short_name(prsc->format),
  410                                 rsc->vc4_format,
  411                                 prsc->width0, prsc->height0,
  412                                 i, tiling_chars[slice->tiling],
  413                                 level_width, level_height,
  414                                 slice->stride, slice->offset);
  415                 }
  416         }
  417 
  418         /* The texture base pointer that has to point to level 0 doesn't have
  419          * intra-page bits, so we have to align it, and thus shift up all the
  420          * smaller slices.
  421          */
  422         uint32_t page_align_offset = (align(rsc->slices[0].offset, 4096) -
  423                                       rsc->slices[0].offset);
  424         if (page_align_offset) {
  425                 for (int i = 0; i <= prsc->last_level; i++)
  426                         rsc->slices[i].offset += page_align_offset;
  427         }
  428 
  429         /* Cube map faces appear as whole miptrees at a page-aligned offset
  430          * from the first face's miptree.
  431          */
  432         if (prsc->target == PIPE_TEXTURE_CUBE) {
  433                 rsc->cube_map_stride = align(rsc->slices[0].offset +
  434                                              rsc->slices[0].size, 4096);
  435         }
  436 }
  437 
  438 static struct vc4_resource *
  439 vc4_resource_setup(struct pipe_screen *pscreen,
  440                    const struct pipe_resource *tmpl)
  441 {
  442         struct vc4_resource *rsc = CALLOC_STRUCT(vc4_resource);
  443         if (!rsc)
  444                 return NULL;
  445         struct pipe_resource *prsc = &rsc->base;
  446 
  447         *prsc = *tmpl;
  448 
  449         pipe_reference_init(&prsc->reference, 1);
  450         prsc->screen = pscreen;
  451 
  452         if (prsc->nr_samples <= 1)
  453                 rsc->cpp = util_format_get_blocksize(tmpl->format);
  454         else
  455                 rsc->cpp = sizeof(uint32_t);
  456 
  457         assert(rsc->cpp);
  458 
  459         return rsc;
  460 }
  461 
  462 static enum vc4_texture_data_type
  463 get_resource_texture_format(struct pipe_resource *prsc)
  464 {
  465         struct vc4_resource *rsc = vc4_resource(prsc);
  466         uint8_t format = vc4_get_tex_format(prsc->format);
  467 
  468         if (!rsc->tiled) {
  469                 if (prsc->nr_samples > 1) {
  470                         return ~0;
  471                 } else {
  472                         if (format == VC4_TEXTURE_TYPE_RGBA8888)
  473                                 return VC4_TEXTURE_TYPE_RGBA32R;
  474                         else
  475                                 return ~0;
  476                 }
  477         }
  478 
  479         return format;
  480 }
  481 
  482 static struct pipe_resource *
  483 vc4_resource_create_with_modifiers(struct pipe_screen *pscreen,
  484                                    const struct pipe_resource *tmpl,
  485                                    const uint64_t *modifiers,
  486                                    int count)
  487 {
  488         struct vc4_screen *screen = vc4_screen(pscreen);
  489         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
  490         struct pipe_resource *prsc = &rsc->base;
  491         bool linear_ok = drm_find_modifier(DRM_FORMAT_MOD_LINEAR, modifiers, count);
  492         /* Use a tiled layout if we can, for better 3D performance. */
  493         bool should_tile = true;
  494 
  495         /* VBOs/PBOs are untiled (and 1 height). */
  496         if (tmpl->target == PIPE_BUFFER)
  497                 should_tile = false;
  498 
  499         /* MSAA buffers are linear. */
  500         if (tmpl->nr_samples > 1)
  501                 should_tile = false;
  502 
  503         /* No tiling when we're sharing with another device (pl111). */
  504         if (screen->ro && (tmpl->bind & PIPE_BIND_SCANOUT))
  505                 should_tile = false;
  506 
  507         /* Cursors are always linear, and the user can request linear as well.
  508          */
  509         if (tmpl->bind & (PIPE_BIND_LINEAR | PIPE_BIND_CURSOR))
  510                 should_tile = false;
  511 
  512         /* No shared objects with LT format -- the kernel only has T-format
  513          * metadata.  LT objects are small enough it's not worth the trouble to
  514          * give them metadata to tile.
  515          */
  516         if ((tmpl->bind & (PIPE_BIND_SHARED | PIPE_BIND_SCANOUT)) &&
  517             vc4_size_is_lt(prsc->width0, prsc->height0, rsc->cpp))
  518                 should_tile = false;
  519 
  520         /* If we're sharing or scanning out, we need the ioctl present to
  521          * inform the kernel or the other side.
  522          */
  523         if ((tmpl->bind & (PIPE_BIND_SHARED |
  524                            PIPE_BIND_SCANOUT)) && !screen->has_tiling_ioctl)
  525                 should_tile = false;
  526 
  527         /* No user-specified modifier; determine our own. */
  528         if (count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID) {
  529                 linear_ok = true;
  530                 rsc->tiled = should_tile;
  531         } else if (should_tile &&
  532                    drm_find_modifier(DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED,
  533                                  modifiers, count)) {
  534                 rsc->tiled = true;
  535         } else if (linear_ok) {
  536                 rsc->tiled = false;
  537         } else {
  538                 fprintf(stderr, "Unsupported modifier requested\n");
  539                 return NULL;
  540         }
  541 
  542         if (tmpl->target != PIPE_BUFFER)
  543                 rsc->vc4_format = get_resource_texture_format(prsc);
  544 
  545         vc4_setup_slices(rsc, "create");
  546         if (!vc4_resource_bo_alloc(rsc))
  547                 goto fail;
  548 
  549         if (screen->has_tiling_ioctl) {
  550                 uint64_t modifier;
  551                 if (rsc->tiled)
  552                         modifier = DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED;
  553                 else
  554                         modifier = DRM_FORMAT_MOD_LINEAR;
  555                 struct drm_vc4_set_tiling set_tiling = {
  556                         .handle = rsc->bo->handle,
  557                         .modifier = modifier,
  558                 };
  559                 int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_SET_TILING,
  560                                     &set_tiling);
  561                 if (ret != 0)
  562                         goto fail;
  563         }
  564 
  565         /* Set up the "scanout resource" (the dmabuf export of our buffer to
  566          * the KMS handle) if the buffer might ever have
  567          * resource_get_handle(WINSYS_HANDLE_TYPE_KMS) called on it.
  568          * create_with_modifiers() doesn't give us usage flags, so we have to
  569          * assume that all calls with modifiers are scanout-possible.
  570          */
  571         if (screen->ro &&
  572             ((tmpl->bind & PIPE_BIND_SCANOUT) ||
  573              !(count == 1 && modifiers[0] == DRM_FORMAT_MOD_INVALID))) {
  574                 rsc->scanout =
  575                         renderonly_scanout_for_resource(prsc, screen->ro, NULL);
  576                 if (!rsc->scanout)
  577                         goto fail;
  578         }
  579 
  580         vc4_bo_label(screen, rsc->bo, "%sresource %dx%d@%d/%d",
  581                      (tmpl->bind & PIPE_BIND_SCANOUT) ? "scanout " : "",
  582                      tmpl->width0, tmpl->height0,
  583                      rsc->cpp * 8, prsc->last_level);
  584 
  585         return prsc;
  586 fail:
  587         vc4_resource_destroy(pscreen, prsc);
  588         return NULL;
  589 }
  590 
  591 struct pipe_resource *
  592 vc4_resource_create(struct pipe_screen *pscreen,
  593                     const struct pipe_resource *tmpl)
  594 {
  595         const uint64_t mod = DRM_FORMAT_MOD_INVALID;
  596         return vc4_resource_create_with_modifiers(pscreen, tmpl, &mod, 1);
  597 }
  598 
  599 static struct pipe_resource *
  600 vc4_resource_from_handle(struct pipe_screen *pscreen,
  601                          const struct pipe_resource *tmpl,
  602                          struct winsys_handle *whandle,
  603                          unsigned usage)
  604 {
  605         struct vc4_screen *screen = vc4_screen(pscreen);
  606         struct vc4_resource *rsc = vc4_resource_setup(pscreen, tmpl);
  607         struct pipe_resource *prsc = &rsc->base;
  608         struct vc4_resource_slice *slice = &rsc->slices[0];
  609 
  610         if (!rsc)
  611                 return NULL;
  612 
  613         switch (whandle->type) {
  614         case WINSYS_HANDLE_TYPE_SHARED:
  615                 rsc->bo = vc4_bo_open_name(screen, whandle->handle);
  616                 break;
  617         case WINSYS_HANDLE_TYPE_FD:
  618                 rsc->bo = vc4_bo_open_dmabuf(screen, whandle->handle);
  619                 break;
  620         default:
  621                 fprintf(stderr,
  622                         "Attempt to import unsupported handle type %d\n",
  623                         whandle->type);
  624         }
  625 
  626         if (!rsc->bo)
  627                 goto fail;
  628 
  629         struct drm_vc4_get_tiling get_tiling = {
  630                 .handle = rsc->bo->handle,
  631         };
  632         int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
  633 
  634         if (ret != 0) {
  635                 whandle->modifier = DRM_FORMAT_MOD_LINEAR;
  636         } else if (whandle->modifier == DRM_FORMAT_MOD_INVALID) {
  637                 whandle->modifier = get_tiling.modifier;
  638         } else if (whandle->modifier != get_tiling.modifier) {
  639                 fprintf(stderr,
  640                         "Modifier 0x%llx vs. tiling (0x%llx) mismatch\n",
  641                         (long long)whandle->modifier, get_tiling.modifier);
  642                 goto fail;
  643         }
  644 
  645         switch (whandle->modifier) {
  646         case DRM_FORMAT_MOD_LINEAR:
  647                 rsc->tiled = false;
  648                 break;
  649         case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED:
  650                 rsc->tiled = true;
  651                 break;
  652         default:
  653                 fprintf(stderr,
  654                         "Attempt to import unsupported modifier 0x%llx\n",
  655                         (long long)whandle->modifier);
  656                 goto fail;
  657         }
  658 
  659         rsc->vc4_format = get_resource_texture_format(prsc);
  660         vc4_setup_slices(rsc, "import");
  661 
  662         if (whandle->offset != 0) {
  663                 if (rsc->tiled) {
  664                         fprintf(stderr,
  665                                 "Attempt to import unsupported "
  666                                 "winsys offset %u\n",
  667                                 whandle->offset);
  668                         goto fail;
  669                 }
  670 
  671                 rsc->slices[0].offset += whandle->offset;
  672 
  673                 if (rsc->slices[0].offset + rsc->slices[0].size >
  674                     rsc->bo->size) {
  675                         fprintf(stderr, "Attempt to import "
  676                                 "with overflowing offset (%d + %d > %d)\n",
  677                                 whandle->offset,
  678                                 rsc->slices[0].size,
  679                                 rsc->bo->size);
  680                         goto fail;
  681                 }
  682         }
  683 
  684         if (screen->ro) {
  685                 /* Make sure that renderonly has a handle to our buffer in the
  686                  * display's fd, so that a later renderonly_get_handle()
  687                  * returns correct handles or GEM names.
  688                  */
  689                 rsc->scanout =
  690                         renderonly_create_gpu_import_for_resource(prsc,
  691                                                                   screen->ro,
  692                                                                   NULL);
  693                 if (!rsc->scanout)
  694                         goto fail;
  695         }
  696 
  697         if (rsc->tiled && whandle->stride != slice->stride) {
  698                 static bool warned = false;
  699                 if (!warned) {
  700                         warned = true;
  701                         fprintf(stderr,
  702                                 "Attempting to import %dx%d %s with "
  703                                 "unsupported stride %d instead of %d\n",
  704                                 prsc->width0, prsc->height0,
  705                                 util_format_short_name(prsc->format),
  706                                 whandle->stride,
  707                                 slice->stride);
  708                 }
  709                 goto fail;
  710         } else if (!rsc->tiled) {
  711                 slice->stride = whandle->stride;
  712         }
  713 
  714         return prsc;
  715 
  716 fail:
  717         vc4_resource_destroy(pscreen, prsc);
  718         return NULL;
  719 }
  720 
  721 static struct pipe_surface *
  722 vc4_create_surface(struct pipe_context *pctx,
  723                    struct pipe_resource *ptex,
  724                    const struct pipe_surface *surf_tmpl)
  725 {
  726         struct vc4_surface *surface = CALLOC_STRUCT(vc4_surface);
  727         struct vc4_resource *rsc = vc4_resource(ptex);
  728 
  729         if (!surface)
  730                 return NULL;
  731 
  732         assert(surf_tmpl->u.tex.first_layer == surf_tmpl->u.tex.last_layer);
  733 
  734         struct pipe_surface *psurf = &surface->base;
  735         unsigned level = surf_tmpl->u.tex.level;
  736 
  737         pipe_reference_init(&psurf->reference, 1);
  738         pipe_resource_reference(&psurf->texture, ptex);
  739 
  740         psurf->context = pctx;
  741         psurf->format = surf_tmpl->format;
  742         psurf->width = u_minify(ptex->width0, level);
  743         psurf->height = u_minify(ptex->height0, level);
  744         psurf->u.tex.level = level;
  745         psurf->u.tex.first_layer = surf_tmpl->u.tex.first_layer;
  746         psurf->u.tex.last_layer = surf_tmpl->u.tex.last_layer;
  747         surface->offset = (rsc->slices[level].offset +
  748                            psurf->u.tex.first_layer * rsc->cube_map_stride);
  749         surface->tiling = rsc->slices[level].tiling;
  750 
  751         return &surface->base;
  752 }
  753 
  754 static void
  755 vc4_surface_destroy(struct pipe_context *pctx, struct pipe_surface *psurf)
  756 {
  757         pipe_resource_reference(&psurf->texture, NULL);
  758         FREE(psurf);
  759 }
  760 
  761 static void
  762 vc4_dump_surface_non_msaa(struct pipe_surface *psurf)
  763 {
  764         struct pipe_resource *prsc = psurf->texture;
  765         struct vc4_resource *rsc = vc4_resource(prsc);
  766         uint32_t *map = vc4_bo_map(rsc->bo);
  767         uint32_t stride = rsc->slices[0].stride / 4;
  768         uint32_t width = psurf->width;
  769         uint32_t height = psurf->height;
  770         uint32_t chunk_w = width / 79;
  771         uint32_t chunk_h = height / 40;
  772         uint32_t found_colors[10];
  773         uint32_t num_found_colors = 0;
  774 
  775         if (rsc->vc4_format != VC4_TEXTURE_TYPE_RGBA32R) {
  776                 fprintf(stderr, "%s: Unsupported format %s\n",
  777                         __func__, util_format_short_name(psurf->format));
  778                 return;
  779         }
  780 
  781         for (int by = 0; by < height; by += chunk_h) {
  782                 for (int bx = 0; bx < width; bx += chunk_w) {
  783                         int all_found_color = -1; /* nothing found */
  784 
  785                         for (int y = by; y < MIN2(height, by + chunk_h); y++) {
  786                                 for (int x = bx; x < MIN2(width, bx + chunk_w); x++) {
  787                                         uint32_t pix = map[y * stride + x];
  788 
  789                                         int i;
  790                                         for (i = 0; i < num_found_colors; i++) {
  791                                                 if (pix == found_colors[i])
  792                                                         break;
  793                                         }
  794                                         if (i == num_found_colors &&
  795                                             num_found_colors <
  796                                             ARRAY_SIZE(found_colors)) {
  797                                                 found_colors[num_found_colors++] = pix;
  798                                         }
  799 
  800                                         if (i < num_found_colors) {
  801                                                 if (all_found_color == -1)
  802                                                         all_found_color = i;
  803                                                 else if (i != all_found_color)
  804                                                         all_found_color = ARRAY_SIZE(found_colors);
  805                                         }
  806                                 }
  807                         }
  808                         /* If all pixels for this chunk have a consistent
  809                          * value, then print a character for it.  Either a
  810                          * fixed name (particularly common for piglit tests),
  811                          * or a runtime-generated number.
  812                          */
  813                         if (all_found_color >= 0 &&
  814                             all_found_color < ARRAY_SIZE(found_colors)) {
  815                                 static const struct {
  816                                         uint32_t val;
  817                                         const char *c;
  818                                 } named_colors[] = {
  819                                         { 0xff000000, "█" },
  820                                         { 0x00000000, "█" },
  821                                         { 0xffff0000, "r" },
  822                                         { 0xff00ff00, "g" },
  823                                         { 0xff0000ff, "b" },
  824                                         { 0xffffffff, "w" },
  825                                 };
  826                                 int i;
  827                                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
  828                                         if (named_colors[i].val ==
  829                                             found_colors[all_found_color]) {
  830                                                 fprintf(stderr, "%s",
  831                                                         named_colors[i].c);
  832                                                 break;
  833                                         }
  834                                 }
  835                                 /* For unnamed colors, print a number and the
  836                                  * numbers will have values printed at the
  837                                  * end.
  838                                  */
  839                                 if (i == ARRAY_SIZE(named_colors)) {
  840                                         fprintf(stderr, "%c",
  841                                                 '0' + all_found_color);
  842                                 }
  843                         } else {
  844                                 /* If there's no consistent color, print this.
  845                                  */
  846                                 fprintf(stderr, ".");
  847                         }
  848                 }
  849                 fprintf(stderr, "\n");
  850         }
  851 
  852         for (int i = 0; i < num_found_colors; i++) {
  853                 fprintf(stderr, "color %d: 0x%08x\n", i, found_colors[i]);
  854         }
  855 }
  856 
  857 static uint32_t
  858 vc4_surface_msaa_get_sample(struct pipe_surface *psurf,
  859                             uint32_t x, uint32_t y, uint32_t sample)
  860 {
  861         struct pipe_resource *prsc = psurf->texture;
  862         struct vc4_resource *rsc = vc4_resource(prsc);
  863         uint32_t tile_w = 32, tile_h = 32;
  864         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, 32);
  865 
  866         uint32_t tile_x = x / tile_w;
  867         uint32_t tile_y = y / tile_h;
  868         uint32_t *tile = (vc4_bo_map(rsc->bo) +
  869                           VC4_TILE_BUFFER_SIZE * (tile_y * tiles_w + tile_x));
  870         uint32_t subtile_x = x % tile_w;
  871         uint32_t subtile_y = y % tile_h;
  872 
  873         uint32_t quad_samples = VC4_MAX_SAMPLES * 4;
  874         uint32_t tile_stride = quad_samples * tile_w / 2;
  875 
  876         return *((uint32_t *)tile +
  877                  (subtile_y >> 1) * tile_stride +
  878                  (subtile_x >> 1) * quad_samples +
  879                  ((subtile_y & 1) << 1) +
  880                  (subtile_x & 1) +
  881                  sample);
  882 }
  883 
  884 static void
  885 vc4_dump_surface_msaa_char(struct pipe_surface *psurf,
  886                            uint32_t start_x, uint32_t start_y,
  887                            uint32_t w, uint32_t h)
  888 {
  889         bool all_same_color = true;
  890         uint32_t all_pix = 0;
  891 
  892         for (int y = start_y; y < start_y + h; y++) {
  893                 for (int x = start_x; x < start_x + w; x++) {
  894                         for (int s = 0; s < VC4_MAX_SAMPLES; s++) {
  895                                 uint32_t pix = vc4_surface_msaa_get_sample(psurf,
  896                                                                            x, y,
  897                                                                            s);
  898                                 if (x == start_x && y == start_y)
  899                                         all_pix = pix;
  900                                 else if (all_pix != pix)
  901                                         all_same_color = false;
  902                         }
  903                 }
  904         }
  905         if (all_same_color) {
  906                 static const struct {
  907                         uint32_t val;
  908                         const char *c;
  909                 } named_colors[] = {
  910                         { 0xff000000, "█" },
  911                         { 0x00000000, "█" },
  912                         { 0xffff0000, "r" },
  913                         { 0xff00ff00, "g" },
  914                         { 0xff0000ff, "b" },
  915                         { 0xffffffff, "w" },
  916                 };
  917                 int i;
  918                 for (i = 0; i < ARRAY_SIZE(named_colors); i++) {
  919                         if (named_colors[i].val == all_pix) {
  920                                 fprintf(stderr, "%s",
  921                                         named_colors[i].c);
  922                                 return;
  923                         }
  924                 }
  925                 fprintf(stderr, "x");
  926         } else {
  927                 fprintf(stderr, ".");
  928         }
  929 }
  930 
  931 static void
  932 vc4_dump_surface_msaa(struct pipe_surface *psurf)
  933 {
  934         uint32_t tile_w = 32, tile_h = 32;
  935         uint32_t tiles_w = DIV_ROUND_UP(psurf->width, tile_w);
  936         uint32_t tiles_h = DIV_ROUND_UP(psurf->height, tile_h);
  937         uint32_t char_w = 140, char_h = 60;
  938         uint32_t char_w_per_tile = char_w / tiles_w - 1;
  939         uint32_t char_h_per_tile = char_h / tiles_h - 1;
  940 
  941         fprintf(stderr, "Surface: %dx%d (%dx MSAA)\n",
  942                 psurf->width, psurf->height, psurf->texture->nr_samples);
  943 
  944         for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
  945                 fprintf(stderr, "-");
  946         fprintf(stderr, "\n");
  947 
  948         for (int ty = 0; ty < psurf->height; ty += tile_h) {
  949                 for (int y = 0; y < char_h_per_tile; y++) {
  950 
  951                         for (int tx = 0; tx < psurf->width; tx += tile_w) {
  952                                 for (int x = 0; x < char_w_per_tile; x++) {
  953                                         uint32_t bx1 = (x * tile_w /
  954                                                         char_w_per_tile);
  955                                         uint32_t bx2 = ((x + 1) * tile_w /
  956                                                         char_w_per_tile);
  957                                         uint32_t by1 = (y * tile_h /
  958                                                         char_h_per_tile);
  959                                         uint32_t by2 = ((y + 1) * tile_h /
  960                                                         char_h_per_tile);
  961 
  962                                         vc4_dump_surface_msaa_char(psurf,
  963                                                                    tx + bx1,
  964                                                                    ty + by1,
  965                                                                    bx2 - bx1,
  966                                                                    by2 - by1);
  967                                 }
  968                                 fprintf(stderr, "|");
  969                         }
  970                         fprintf(stderr, "\n");
  971                 }
  972 
  973                 for (int x = 0; x < (char_w_per_tile + 1) * tiles_w; x++)
  974                         fprintf(stderr, "-");
  975                 fprintf(stderr, "\n");
  976         }
  977 }
  978 
  979 /** Debug routine to dump the contents of an 8888 surface to the console */
  980 void
  981 vc4_dump_surface(struct pipe_surface *psurf)
  982 {
  983         if (!psurf)
  984                 return;
  985 
  986         if (psurf->texture->nr_samples > 1)
  987                 vc4_dump_surface_msaa(psurf);
  988         else
  989                 vc4_dump_surface_non_msaa(psurf);
  990 }
  991 
  992 static void
  993 vc4_flush_resource(struct pipe_context *pctx, struct pipe_resource *resource)
  994 {
  995         /* All calls to flush_resource are followed by a flush of the context,
  996          * so there's nothing to do.
  997          */
  998 }
  999 
 1000 void
 1001 vc4_update_shadow_baselevel_texture(struct pipe_context *pctx,
 1002                                     struct pipe_sampler_view *pview)
 1003 {
 1004         struct vc4_context *vc4 = vc4_context(pctx);
 1005         struct vc4_sampler_view *view = vc4_sampler_view(pview);
 1006         struct vc4_resource *shadow = vc4_resource(view->texture);
 1007         struct vc4_resource *orig = vc4_resource(pview->texture);
 1008 
 1009         assert(view->texture != pview->texture);
 1010 
 1011         if (shadow->writes == orig->writes && orig->bo->private)
 1012                 return;
 1013 
 1014         perf_debug("Updating %dx%d@%d shadow texture due to %s\n",
 1015                    orig->base.width0, orig->base.height0,
 1016                    pview->u.tex.first_level,
 1017                    pview->u.tex.first_level ? "base level" : "raster layout");
 1018 
 1019         for (int i = 0; i <= shadow->base.last_level; i++) {
 1020                 unsigned width = u_minify(shadow->base.width0, i);
 1021                 unsigned height = u_minify(shadow->base.height0, i);
 1022                 struct pipe_blit_info info = {
 1023                         .dst = {
 1024                                 .resource = &shadow->base,
 1025                                 .level = i,
 1026                                 .box = {
 1027                                         .x = 0,
 1028                                         .y = 0,
 1029                                         .z = 0,
 1030                                         .width = width,
 1031                                         .height = height,
 1032                                         .depth = 1,
 1033                                 },
 1034                                 .format = shadow->base.format,
 1035                         },
 1036                         .src = {
 1037                                 .resource = &orig->base,
 1038                                 .level = pview->u.tex.first_level + i,
 1039                                 .box = {
 1040                                         .x = 0,
 1041                                         .y = 0,
 1042                                         .z = 0,
 1043                                         .width = width,
 1044                                         .height = height,
 1045                                         .depth = 1,
 1046                                 },
 1047                                 .format = orig->base.format,
 1048                         },
 1049                         .mask = ~0,
 1050                 };
 1051                 pctx->blit(pctx, &info);
 1052         }
 1053 
 1054         shadow->writes = orig->writes;
 1055 }
 1056 
 1057 /**
 1058  * Converts a 4-byte index buffer to 2 bytes.
 1059  *
 1060  * Since GLES2 only has support for 1 and 2-byte indices, the hardware doesn't
 1061  * include 4-byte index support, and we have to shrink it down.
 1062  *
 1063  * There's no fallback support for when indices end up being larger than 2^16,
 1064  * though it will at least assertion fail.  Also, if the original index data
 1065  * was in user memory, it would be nice to not have uploaded it to a VBO
 1066  * before translating.
 1067  */
 1068 struct pipe_resource *
 1069 vc4_get_shadow_index_buffer(struct pipe_context *pctx,
 1070                             const struct pipe_draw_info *info,
 1071                             uint32_t offset,
 1072                             uint32_t count,
 1073                             uint32_t *shadow_offset)
 1074 {
 1075         struct vc4_context *vc4 = vc4_context(pctx);
 1076         struct vc4_resource *orig = vc4_resource(info->index.resource);
 1077         perf_debug("Fallback conversion for %d uint indices\n", count);
 1078 
 1079         void *data;
 1080         struct pipe_resource *shadow_rsc = NULL;
 1081         u_upload_alloc(vc4->uploader, 0, count * 2, 4,
 1082                        shadow_offset, &shadow_rsc, &data);
 1083         uint16_t *dst = data;
 1084 
 1085         struct pipe_transfer *src_transfer = NULL;
 1086         const uint32_t *src;
 1087         if (info->has_user_indices) {
 1088                 src = info->index.user;
 1089         } else {
 1090                 src = pipe_buffer_map_range(pctx, &orig->base,
 1091                                             offset,
 1092                                             count * 4,
 1093                                             PIPE_TRANSFER_READ, &src_transfer);
 1094         }
 1095 
 1096         for (int i = 0; i < count; i++) {
 1097                 uint32_t src_index = src[i];
 1098                 assert(src_index <= 0xffff);
 1099                 dst[i] = src_index;
 1100         }
 1101 
 1102         if (src_transfer)
 1103                 pctx->transfer_unmap(pctx, src_transfer);
 1104 
 1105         return shadow_rsc;
 1106 }
 1107 
 1108 static const struct u_transfer_vtbl transfer_vtbl = {
 1109         .resource_create          = vc4_resource_create,
 1110         .resource_destroy         = vc4_resource_destroy,
 1111         .transfer_map             = vc4_resource_transfer_map,
 1112         .transfer_unmap           = vc4_resource_transfer_unmap,
 1113         .transfer_flush_region    = u_default_transfer_flush_region,
 1114 };
 1115 
 1116 void
 1117 vc4_resource_screen_init(struct pipe_screen *pscreen)
 1118 {
 1119         struct vc4_screen *screen = vc4_screen(pscreen);
 1120 
 1121         pscreen->resource_create = vc4_resource_create;
 1122         pscreen->resource_create_with_modifiers =
 1123                 vc4_resource_create_with_modifiers;
 1124         pscreen->resource_from_handle = vc4_resource_from_handle;
 1125         pscreen->resource_destroy = u_resource_destroy_vtbl;
 1126         pscreen->resource_get_handle = vc4_resource_get_handle;
 1127         pscreen->resource_destroy = vc4_resource_destroy;
 1128         pscreen->transfer_helper = u_transfer_helper_create(&transfer_vtbl,
 1129                                                             false, false,
 1130                                                             false, true);
 1131 
 1132         /* Test if the kernel has GET_TILING; it will return -EINVAL if the
 1133          * ioctl does not exist, but -ENOENT if we pass an impossible handle.
 1134          * 0 cannot be a valid GEM object, so use that.
 1135          */
 1136         struct drm_vc4_get_tiling get_tiling = {
 1137                 .handle = 0x0,
 1138         };
 1139         int ret = vc4_ioctl(screen->fd, DRM_IOCTL_VC4_GET_TILING, &get_tiling);
 1140         if (ret == -1 && errno == ENOENT)
 1141                 screen->has_tiling_ioctl = true;
 1142 }
 1143 
 1144 void
 1145 vc4_resource_context_init(struct pipe_context *pctx)
 1146 {
 1147         pctx->transfer_map = u_transfer_helper_transfer_map;
 1148         pctx->transfer_flush_region = u_transfer_helper_transfer_flush_region;
 1149         pctx->transfer_unmap = u_transfer_helper_transfer_unmap;
 1150         pctx->buffer_subdata = u_default_buffer_subdata;
 1151         pctx->texture_subdata = vc4_texture_subdata;
 1152         pctx->create_surface = vc4_create_surface;
 1153         pctx->surface_destroy = vc4_surface_destroy;
 1154         pctx->resource_copy_region = util_resource_copy_region;
 1155         pctx->blit = vc4_blit;
 1156         pctx->flush_resource = vc4_flush_resource;
 1157 }