src/gallium/drivers/freedreno/freedreno_resource.c

   1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
   2
   3 /*
   4  * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  23  * SOFTWARE.
  24  *
  25  * Authors:
  26  *    Rob Clark <robclark@freedesktop.org>
  27  */
  28
  29 #include "util/u_format.h"
  30 #include "util/u_inlines.h"
  31 #include "util/u_transfer.h"
  32 #include "util/u_string.h"
  33 #include "util/u_surface.h"
  34
  35 #include "freedreno_resource.h"
  36 #include "freedreno_screen.h"
  37 #include "freedreno_surface.h"
  38 #include "freedreno_context.h"
  39 #include "freedreno_query_hw.h"
  40 #include "freedreno_util.h"
  41
  42 #include <errno.h>
  43
  44 static void
  45 realloc_bo(struct fd_resource *rsc, uint32_t size)
  46 {
  47         struct fd_screen *screen = fd_screen(rsc->base.b.screen);
  48         uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
  49                         DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
  50
  51         /* if we start using things other than write-combine,
  52          * be sure to check for PIPE_RESOURCE_FLAG_MAP_COHERENT
  53          */
  54
  55         if (rsc->bo)
  56                 fd_bo_del(rsc->bo);
  57
  58         rsc->bo = fd_bo_new(screen->dev, size, flags);
  59         rsc->timestamp = 0;
  60         rsc->dirty = false;
  61 }
  62
  63 static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
  64                 struct pipe_transfer *ptrans,
  65                 const struct pipe_box *box)
  66 {
  67         struct fd_context *ctx = fd_context(pctx);
  68         struct fd_resource *rsc = fd_resource(ptrans->resource);
  69
  70         if (rsc->dirty)
  71                 fd_context_render(pctx);
  72
  73         if (rsc->timestamp) {
  74                 fd_pipe_wait(ctx->screen->pipe, rsc->timestamp);
  75                 rsc->timestamp = 0;
  76         }
  77 }
  78
  79 static void
  80 fd_resource_transfer_unmap(struct pipe_context *pctx,
  81                 struct pipe_transfer *ptrans)
  82 {
  83         struct fd_context *ctx = fd_context(pctx);
  84         struct fd_resource *rsc = fd_resource(ptrans->resource);
  85         if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
  86                 fd_bo_cpu_fini(rsc->bo);
  87         pipe_resource_reference(&ptrans->resource, NULL);
  88         util_slab_free(&ctx->transfer_pool, ptrans);
  89 }
  90
  91 static void *
  92 fd_resource_transfer_map(struct pipe_context *pctx,
  93                 struct pipe_resource *prsc,
  94                 unsigned level, unsigned usage,
  95                 const struct pipe_box *box,
  96                 struct pipe_transfer **pptrans)
  97 {
  98         struct fd_context *ctx = fd_context(pctx);
  99         struct fd_resource *rsc = fd_resource(prsc);
 100         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 101         struct pipe_transfer *ptrans;
 102         enum pipe_format format = prsc->format;
 103         uint32_t op = 0;
 104         char *buf;
 105         int ret = 0;
 106
 107         DBG("prsc=%p, level=%u, usage=%x", prsc, level, usage);
 108
 109         ptrans = util_slab_alloc(&ctx->transfer_pool);
 110         if (!ptrans)
 111                 return NULL;
 112
 113         /* util_slab_alloc() doesn't zero: */
 114         memset(ptrans, 0, sizeof(*ptrans));
 115
 116         pipe_resource_reference(&ptrans->resource, prsc);
 117         ptrans->level = level;
 118         ptrans->usage = usage;
 119         ptrans->box = *box;
 120         ptrans->stride = slice->pitch * rsc->cpp;
 121         ptrans->layer_stride = slice->size0;
 122
 123         if (usage & PIPE_TRANSFER_READ)
 124                 op |= DRM_FREEDRENO_PREP_READ;
 125
 126         if (usage & PIPE_TRANSFER_WRITE)
 127                 op |= DRM_FREEDRENO_PREP_WRITE;
 128
 129         /* some state trackers (at least XA) don't do this.. */
 130         if (!(usage & (PIPE_TRANSFER_FLUSH_EXPLICIT | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)))
 131                 fd_resource_transfer_flush_region(pctx, ptrans, box);
 132
 133         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE) {
 134                 realloc_bo(rsc, fd_bo_size(rsc->bo));
 135         } else if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 136                 ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
 137                 if (ret)
 138                         goto fail;
 139         }
 140
 141         buf = fd_bo_map(rsc->bo);
 142         if (!buf) {
 143                 fd_resource_transfer_unmap(pctx, ptrans);
 144                 return NULL;
 145         }
 146
 147         *pptrans = ptrans;
 148
 149         return buf + slice->offset +
 150                 box->y / util_format_get_blockheight(format) * ptrans->stride +
 151                 box->x / util_format_get_blockwidth(format) * rsc->cpp +
 152                 box->z * slice->size0;
 153
 154 fail:
 155         fd_resource_transfer_unmap(pctx, ptrans);
 156         return NULL;
 157 }
 158
 159 static void
 160 fd_resource_destroy(struct pipe_screen *pscreen,
 161                 struct pipe_resource *prsc)
 162 {
 163         struct fd_resource *rsc = fd_resource(prsc);
 164         if (rsc->bo)
 165                 fd_bo_del(rsc->bo);
 166         FREE(rsc);
 167 }
 168
 169 static boolean
 170 fd_resource_get_handle(struct pipe_screen *pscreen,
 171                 struct pipe_resource *prsc,
 172                 struct winsys_handle *handle)
 173 {
 174         struct fd_resource *rsc = fd_resource(prsc);
 175
 176         return fd_screen_bo_get_handle(pscreen, rsc->bo,
 177                         rsc->slices[0].pitch * rsc->cpp, handle);
 178 }
 179
 180
 181 static const struct u_resource_vtbl fd_resource_vtbl = {
 182                 .resource_get_handle      = fd_resource_get_handle,
 183                 .resource_destroy         = fd_resource_destroy,
 184                 .transfer_map             = fd_resource_transfer_map,
 185                 .transfer_flush_region    = fd_resource_transfer_flush_region,
 186                 .transfer_unmap           = fd_resource_transfer_unmap,
 187                 .transfer_inline_write    = u_default_transfer_inline_write,
 188 };
 189
 190 static uint32_t
 191 setup_slices(struct fd_resource *rsc, uint32_t alignment)
 192 {
 193         struct pipe_resource *prsc = &rsc->base.b;
 194         uint32_t level, size = 0;
 195         uint32_t width = prsc->width0;
 196         uint32_t height = prsc->height0;
 197         uint32_t depth = prsc->depth0;
 198
 199         for (level = 0; level <= prsc->last_level; level++) {
 200                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 201
 202                 slice->pitch = align(width, 32);
 203                 slice->offset = size;
 204                 slice->size0 = align(slice->pitch * height * rsc->cpp, alignment);
 205
 206                 size += slice->size0 * depth * prsc->array_size;
 207
 208                 width = u_minify(width, 1);
 209                 height = u_minify(height, 1);
 210                 depth = u_minify(depth, 1);
 211         }
 212
 213         return size;
 214 }
 215
 216 static uint32_t
 217 slice_alignment(struct pipe_screen *pscreen, const struct pipe_resource *tmpl)
 218 {
 219         /* on a3xx, 2d array and 3d textures seem to want their
 220          * layers aligned to page boundaries:
 221          */
 222         switch (tmpl->target) {
 223         case PIPE_TEXTURE_3D:
 224         case PIPE_TEXTURE_1D_ARRAY:
 225         case PIPE_TEXTURE_2D_ARRAY:
 226                 return 4096;
 227         default:
 228                 return 1;
 229         }
 230 }
 231
 232 /**
 233  * Create a new texture object, using the given template info.
 234  */
 235 static struct pipe_resource *
 236 fd_resource_create(struct pipe_screen *pscreen,
 237                 const struct pipe_resource *tmpl)
 238 {
 239         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 240         struct pipe_resource *prsc = &rsc->base.b;
 241         uint32_t size;
 242
 243         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 244                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 245                         tmpl->target, util_format_name(tmpl->format),
 246                         tmpl->width0, tmpl->height0, tmpl->depth0,
 247                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 248                         tmpl->usage, tmpl->bind, tmpl->flags);
 249
 250         if (!rsc)
 251                 return NULL;
 252
 253         *prsc = *tmpl;
 254
 255         pipe_reference_init(&prsc->reference, 1);
 256         prsc->screen = pscreen;
 257
 258         rsc->base.vtbl = &fd_resource_vtbl;
 259         rsc->cpp = util_format_get_blocksize(tmpl->format);
 260
 261         assert(rsc->cpp);
 262
 263         size = setup_slices(rsc, slice_alignment(pscreen, tmpl));
 264
 265         realloc_bo(rsc, size);
 266         if (!rsc->bo)
 267                 goto fail;
 268
 269         return prsc;
 270 fail:
 271         fd_resource_destroy(pscreen, prsc);
 272         return NULL;
 273 }
 274
 275 /**
 276  * Create a texture from a winsys_handle. The handle is often created in
 277  * another process by first creating a pipe texture and then calling
 278  * resource_get_handle.
 279  */
 280 static struct pipe_resource *
 281 fd_resource_from_handle(struct pipe_screen *pscreen,
 282                 const struct pipe_resource *tmpl,
 283                 struct winsys_handle *handle)
 284 {
 285         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 286         struct fd_resource_slice *slice = &rsc->slices[0];
 287         struct pipe_resource *prsc = &rsc->base.b;
 288
 289         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 290                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 291                         tmpl->target, util_format_name(tmpl->format),
 292                         tmpl->width0, tmpl->height0, tmpl->depth0,
 293                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 294                         tmpl->usage, tmpl->bind, tmpl->flags);
 295
 296         if (!rsc)
 297                 return NULL;
 298
 299         *prsc = *tmpl;
 300
 301         pipe_reference_init(&prsc->reference, 1);
 302         prsc->screen = pscreen;
 303
 304         rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
 305         if (!rsc->bo)
 306                 goto fail;
 307
 308         rsc->base.vtbl = &fd_resource_vtbl;
 309         rsc->cpp = util_format_get_blocksize(tmpl->format);
 310         slice->pitch /= rsc->cpp;
 311
 312         assert(rsc->cpp);
 313
 314         return prsc;
 315
 316 fail:
 317         fd_resource_destroy(pscreen, prsc);
 318         return NULL;
 319 }
 320
 321 static void fd_blitter_pipe_begin(struct fd_context *ctx);
 322 static void fd_blitter_pipe_end(struct fd_context *ctx);
 323
 324 /**
 325  * _copy_region using pipe (3d engine)
 326  */
 327 static bool
 328 fd_blitter_pipe_copy_region(struct fd_context *ctx,
 329                 struct pipe_resource *dst,
 330                 unsigned dst_level,
 331                 unsigned dstx, unsigned dsty, unsigned dstz,
 332                 struct pipe_resource *src,
 333                 unsigned src_level,
 334                 const struct pipe_box *src_box)
 335 {
 336         /* not until we allow rendertargets to be buffers */
 337         if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
 338                 return false;
 339
 340         if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
 341                 return false;
 342
 343         fd_blitter_pipe_begin(ctx);
 344         util_blitter_copy_texture(ctx->blitter,
 345                         dst, dst_level, dstx, dsty, dstz,
 346                         src, src_level, src_box);
 347         fd_blitter_pipe_end(ctx);
 348
 349         return true;
 350 }
 351
 352 /**
 353  * Copy a block of pixels from one resource to another.
 354  * The resource must be of the same format.
 355  * Resources with nr_samples > 1 are not allowed.
 356  */
 357 static void
 358 fd_resource_copy_region(struct pipe_context *pctx,
 359                 struct pipe_resource *dst,
 360                 unsigned dst_level,
 361                 unsigned dstx, unsigned dsty, unsigned dstz,
 362                 struct pipe_resource *src,
 363                 unsigned src_level,
 364                 const struct pipe_box *src_box)
 365 {
 366         struct fd_context *ctx = fd_context(pctx);
 367
 368         /* TODO if we have 2d core, or other DMA engine that could be used
 369          * for simple copies and reasonably easily synchronized with the 3d
 370          * core, this is where we'd plug it in..
 371          */
 372
 373         /* try blit on 3d pipe: */
 374         if (fd_blitter_pipe_copy_region(ctx,
 375                         dst, dst_level, dstx, dsty, dstz,
 376                         src, src_level, src_box))
 377                 return;
 378
 379         /* else fallback to pure sw: */
 380         util_resource_copy_region(pctx,
 381                         dst, dst_level, dstx, dsty, dstz,
 382                         src, src_level, src_box);
 383 }
 384
 385 /**
 386  * Optimal hardware path for blitting pixels.
 387  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 388  */
 389 static void
 390 fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 391 {
 392         struct fd_context *ctx = fd_context(pctx);
 393         struct pipe_blit_info info = *blit_info;
 394
 395         if (info.src.resource->nr_samples > 1 &&
 396                         info.dst.resource->nr_samples <= 1 &&
 397                         !util_format_is_depth_or_stencil(info.src.resource->format) &&
 398                         !util_format_is_pure_integer(info.src.resource->format)) {
 399                 DBG("color resolve unimplemented");
 400                 return;
 401         }
 402
 403         if (util_try_blit_via_copy_region(pctx, &info)) {
 404                 return; /* done */
 405         }
 406
 407         if (info.mask & PIPE_MASK_S) {
 408                 DBG("cannot blit stencil, skipping");
 409                 info.mask &= ~PIPE_MASK_S;
 410         }
 411
 412         if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 413                 DBG("blit unsupported %s -> %s",
 414                                 util_format_short_name(info.src.resource->format),
 415                                 util_format_short_name(info.dst.resource->format));
 416                 return;
 417         }
 418
 419         fd_blitter_pipe_begin(ctx);
 420         util_blitter_blit(ctx->blitter, &info);
 421         fd_blitter_pipe_end(ctx);
 422 }
 423
 424 static void
 425 fd_blitter_pipe_begin(struct fd_context *ctx)
 426 {
 427         util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
 428         util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
 429         util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
 430         util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
 431         util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
 432         util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 433         util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
 434         util_blitter_save_blend(ctx->blitter, ctx->blend);
 435         util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
 436         util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 437         util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
 438         util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
 439         util_blitter_save_fragment_sampler_states(ctx->blitter,
 440                         ctx->fragtex.num_samplers,
 441                         (void **)ctx->fragtex.samplers);
 442         util_blitter_save_fragment_sampler_views(ctx->blitter,
 443                         ctx->fragtex.num_textures, ctx->fragtex.textures);
 444
 445         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
 446 }
 447
 448 static void
 449 fd_blitter_pipe_end(struct fd_context *ctx)
 450 {
 451         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
 452 }
 453
 454 static void
 455 fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 456 {
 457         struct fd_resource *rsc = fd_resource(prsc);
 458
 459         if (rsc->dirty)
 460                 fd_context_render(pctx);
 461 }
 462
 463 void
 464 fd_resource_screen_init(struct pipe_screen *pscreen)
 465 {
 466         pscreen->resource_create = fd_resource_create;
 467         pscreen->resource_from_handle = fd_resource_from_handle;
 468         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 469         pscreen->resource_destroy = u_resource_destroy_vtbl;
 470 }
 471
 472 void
 473 fd_resource_context_init(struct pipe_context *pctx)
 474 {
 475         pctx->transfer_map = u_transfer_map_vtbl;
 476         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 477         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 478         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 479         pctx->create_surface = fd_create_surface;
 480         pctx->surface_destroy = fd_surface_destroy;
 481         pctx->resource_copy_region = fd_resource_copy_region;
 482         pctx->blit = fd_blit;
 483         pctx->flush_resource = fd_flush_resource;
 484 }