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         ptrans = util_slab_alloc(&ctx->transfer_pool);
 108         if (!ptrans)
 109                 return NULL;
 110
 111         /* util_slab_alloc() doesn't zero: */
 112         memset(ptrans, 0, sizeof(*ptrans));
 113
 114         pipe_resource_reference(&ptrans->resource, prsc);
 115         ptrans->level = level;
 116         ptrans->usage = usage;
 117         ptrans->box = *box;
 118         ptrans->stride = slice->pitch * rsc->cpp;
 119         ptrans->layer_stride = slice->size0;
 120
 121         if (usage & PIPE_TRANSFER_READ)
 122                 op |= DRM_FREEDRENO_PREP_READ;
 123
 124         if (usage & PIPE_TRANSFER_WRITE)
 125                 op |= DRM_FREEDRENO_PREP_WRITE;
 126
 127         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)
 128                 op |= DRM_FREEDRENO_PREP_NOSYNC;
 129
 130         /* some state trackers (at least XA) don't do this.. */
 131         if (!(usage & (PIPE_TRANSFER_FLUSH_EXPLICIT | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)))
 132                 fd_resource_transfer_flush_region(pctx, ptrans, box);
 133
 134         if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 135                 ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
 136                 if ((ret == -EBUSY) && (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE))
 137                         realloc_bo(rsc, fd_bo_size(rsc->bo));
 138                 else if (ret)
 139                         goto fail;
 140         }
 141
 142         buf = fd_bo_map(rsc->bo);
 143         if (!buf) {
 144                 fd_resource_transfer_unmap(pctx, ptrans);
 145                 return NULL;
 146         }
 147
 148         *pptrans = ptrans;
 149
 150         return buf + slice->offset +
 151                 box->y / util_format_get_blockheight(format) * ptrans->stride +
 152                 box->x / util_format_get_blockwidth(format) * rsc->cpp +
 153                 box->z * slice->size0;
 154
 155 fail:
 156         fd_resource_transfer_unmap(pctx, ptrans);
 157         return NULL;
 158 }
 159
 160 static void
 161 fd_resource_destroy(struct pipe_screen *pscreen,
 162                 struct pipe_resource *prsc)
 163 {
 164         struct fd_resource *rsc = fd_resource(prsc);
 165         if (rsc->bo)
 166                 fd_bo_del(rsc->bo);
 167         FREE(rsc);
 168 }
 169
 170 static boolean
 171 fd_resource_get_handle(struct pipe_screen *pscreen,
 172                 struct pipe_resource *prsc,
 173                 struct winsys_handle *handle)
 174 {
 175         struct fd_resource *rsc = fd_resource(prsc);
 176
 177         return fd_screen_bo_get_handle(pscreen, rsc->bo,
 178                         rsc->slices[0].pitch * rsc->cpp, handle);
 179 }
 180
 181
 182 static const struct u_resource_vtbl fd_resource_vtbl = {
 183                 .resource_get_handle      = fd_resource_get_handle,
 184                 .resource_destroy         = fd_resource_destroy,
 185                 .transfer_map             = fd_resource_transfer_map,
 186                 .transfer_flush_region    = fd_resource_transfer_flush_region,
 187                 .transfer_unmap           = fd_resource_transfer_unmap,
 188                 .transfer_inline_write    = u_default_transfer_inline_write,
 189 };
 190
 191 static uint32_t
 192 setup_slices(struct fd_resource *rsc)
 193 {
 194         struct pipe_resource *prsc = &rsc->base.b;
 195         uint32_t level, size = 0;
 196         uint32_t width = prsc->width0;
 197         uint32_t height = prsc->height0;
 198         uint32_t depth = prsc->depth0;
 199
 200         for (level = 0; level <= prsc->last_level; level++) {
 201                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 202                 uint32_t aligned_width = align(width, 32);
 203
 204                 slice->pitch = aligned_width;
 205                 slice->offset = size;
 206                 slice->size0 = slice->pitch * height * rsc->cpp;
 207
 208                 size += slice->size0 * depth * prsc->array_size;
 209
 210                 width = u_minify(width, 1);
 211                 height = u_minify(height, 1);
 212                 depth = u_minify(depth, 1);
 213         }
 214
 215         return size;
 216 }
 217
 218 /* 2d array and 3d textures seem to want their layers aligned to
 219  * page boundaries
 220  */
 221 static uint32_t
 222 setup_slices_array(struct fd_resource *rsc)
 223 {
 224         struct pipe_resource *prsc = &rsc->base.b;
 225         uint32_t level, size = 0;
 226         uint32_t width = prsc->width0;
 227         uint32_t height = prsc->height0;
 228         uint32_t depth = prsc->depth0;
 229
 230         for (level = 0; level <= prsc->last_level; level++) {
 231                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 232                 uint32_t aligned_width = align(width, 32);
 233
 234                 slice->pitch = aligned_width;
 235                 slice->offset = size;
 236                 slice->size0 = align(slice->pitch * height * rsc->cpp, 4096);
 237
 238                 size += slice->size0 * depth * prsc->array_size;
 239
 240                 width = u_minify(width, 1);
 241                 height = u_minify(height, 1);
 242                 depth = u_minify(depth, 1);
 243         }
 244
 245         return size;
 246 }
 247
 248 /**
 249  * Create a new texture object, using the given template info.
 250  */
 251 static struct pipe_resource *
 252 fd_resource_create(struct pipe_screen *pscreen,
 253                 const struct pipe_resource *tmpl)
 254 {
 255         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 256         struct pipe_resource *prsc = &rsc->base.b;
 257         uint32_t size;
 258
 259         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 260                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 261                         tmpl->target, util_format_name(tmpl->format),
 262                         tmpl->width0, tmpl->height0, tmpl->depth0,
 263                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 264                         tmpl->usage, tmpl->bind, tmpl->flags);
 265
 266         if (!rsc)
 267                 return NULL;
 268
 269         *prsc = *tmpl;
 270
 271         pipe_reference_init(&prsc->reference, 1);
 272         prsc->screen = pscreen;
 273
 274         rsc->base.vtbl = &fd_resource_vtbl;
 275         rsc->cpp = util_format_get_blocksize(tmpl->format);
 276
 277         assert(rsc->cpp);
 278
 279         switch (tmpl->target) {
 280         case PIPE_TEXTURE_3D:
 281         case PIPE_TEXTURE_1D_ARRAY:
 282         case PIPE_TEXTURE_2D_ARRAY:
 283                 size = setup_slices_array(rsc);
 284                 break;
 285         default:
 286                 size = setup_slices(rsc);
 287                 break;
 288         }
 289
 290         realloc_bo(rsc, size);
 291         if (!rsc->bo)
 292                 goto fail;
 293
 294         return prsc;
 295 fail:
 296         fd_resource_destroy(pscreen, prsc);
 297         return NULL;
 298 }
 299
 300 /**
 301  * Create a texture from a winsys_handle. The handle is often created in
 302  * another process by first creating a pipe texture and then calling
 303  * resource_get_handle.
 304  */
 305 static struct pipe_resource *
 306 fd_resource_from_handle(struct pipe_screen *pscreen,
 307                 const struct pipe_resource *tmpl,
 308                 struct winsys_handle *handle)
 309 {
 310         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 311         struct fd_resource_slice *slice = &rsc->slices[0];
 312         struct pipe_resource *prsc = &rsc->base.b;
 313
 314         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 315                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 316                         tmpl->target, util_format_name(tmpl->format),
 317                         tmpl->width0, tmpl->height0, tmpl->depth0,
 318                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 319                         tmpl->usage, tmpl->bind, tmpl->flags);
 320
 321         if (!rsc)
 322                 return NULL;
 323
 324         *prsc = *tmpl;
 325
 326         pipe_reference_init(&prsc->reference, 1);
 327         prsc->screen = pscreen;
 328
 329         rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
 330         if (!rsc->bo)
 331                 goto fail;
 332
 333         rsc->base.vtbl = &fd_resource_vtbl;
 334         rsc->cpp = util_format_get_blocksize(tmpl->format);
 335         slice->pitch /= rsc->cpp;
 336
 337         assert(rsc->cpp);
 338
 339         return prsc;
 340
 341 fail:
 342         fd_resource_destroy(pscreen, prsc);
 343         return NULL;
 344 }
 345
 346 static void fd_blitter_pipe_begin(struct fd_context *ctx);
 347 static void fd_blitter_pipe_end(struct fd_context *ctx);
 348
 349 /**
 350  * _copy_region using pipe (3d engine)
 351  */
 352 static bool
 353 fd_blitter_pipe_copy_region(struct fd_context *ctx,
 354                 struct pipe_resource *dst,
 355                 unsigned dst_level,
 356                 unsigned dstx, unsigned dsty, unsigned dstz,
 357                 struct pipe_resource *src,
 358                 unsigned src_level,
 359                 const struct pipe_box *src_box)
 360 {
 361         /* not until we allow rendertargets to be buffers */
 362         if (dst->target == PIPE_BUFFER || src->target == PIPE_BUFFER)
 363                 return false;
 364
 365         if (!util_blitter_is_copy_supported(ctx->blitter, dst, src))
 366                 return false;
 367
 368         fd_blitter_pipe_begin(ctx);
 369         util_blitter_copy_texture(ctx->blitter,
 370                         dst, dst_level, dstx, dsty, dstz,
 371                         src, src_level, src_box);
 372         fd_blitter_pipe_end(ctx);
 373
 374         return true;
 375 }
 376
 377 /**
 378  * Copy a block of pixels from one resource to another.
 379  * The resource must be of the same format.
 380  * Resources with nr_samples > 1 are not allowed.
 381  */
 382 static void
 383 fd_resource_copy_region(struct pipe_context *pctx,
 384                 struct pipe_resource *dst,
 385                 unsigned dst_level,
 386                 unsigned dstx, unsigned dsty, unsigned dstz,
 387                 struct pipe_resource *src,
 388                 unsigned src_level,
 389                 const struct pipe_box *src_box)
 390 {
 391         struct fd_context *ctx = fd_context(pctx);
 392
 393         /* TODO if we have 2d core, or other DMA engine that could be used
 394          * for simple copies and reasonably easily synchronized with the 3d
 395          * core, this is where we'd plug it in..
 396          */
 397
 398         /* try blit on 3d pipe: */
 399         if (fd_blitter_pipe_copy_region(ctx,
 400                         dst, dst_level, dstx, dsty, dstz,
 401                         src, src_level, src_box))
 402                 return;
 403
 404         /* else fallback to pure sw: */
 405         util_resource_copy_region(pctx,
 406                         dst, dst_level, dstx, dsty, dstz,
 407                         src, src_level, src_box);
 408 }
 409
 410 /**
 411  * Optimal hardware path for blitting pixels.
 412  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 413  */
 414 static void
 415 fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 416 {
 417         struct fd_context *ctx = fd_context(pctx);
 418         struct pipe_blit_info info = *blit_info;
 419
 420         if (info.src.resource->nr_samples > 1 &&
 421                         info.dst.resource->nr_samples <= 1 &&
 422                         !util_format_is_depth_or_stencil(info.src.resource->format) &&
 423                         !util_format_is_pure_integer(info.src.resource->format)) {
 424                 DBG("color resolve unimplemented");
 425                 return;
 426         }
 427
 428         if (util_try_blit_via_copy_region(pctx, &info)) {
 429                 return; /* done */
 430         }
 431
 432         if (info.mask & PIPE_MASK_S) {
 433                 DBG("cannot blit stencil, skipping");
 434                 info.mask &= ~PIPE_MASK_S;
 435         }
 436
 437         if (!util_blitter_is_blit_supported(ctx->blitter, &info)) {
 438                 DBG("blit unsupported %s -> %s",
 439                                 util_format_short_name(info.src.resource->format),
 440                                 util_format_short_name(info.dst.resource->format));
 441                 return;
 442         }
 443
 444         fd_blitter_pipe_begin(ctx);
 445         util_blitter_blit(ctx->blitter, &info);
 446         fd_blitter_pipe_end(ctx);
 447 }
 448
 449 static void
 450 fd_blitter_pipe_begin(struct fd_context *ctx)
 451 {
 452         util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vtx.vertexbuf.vb);
 453         util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx.vtx);
 454         util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
 455         util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
 456         util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
 457         util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 458         util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
 459         util_blitter_save_blend(ctx->blitter, ctx->blend);
 460         util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
 461         util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 462         util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
 463         util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
 464         util_blitter_save_fragment_sampler_states(ctx->blitter,
 465                         ctx->fragtex.num_samplers,
 466                         (void **)ctx->fragtex.samplers);
 467         util_blitter_save_fragment_sampler_views(ctx->blitter,
 468                         ctx->fragtex.num_textures, ctx->fragtex.textures);
 469
 470         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
 471 }
 472
 473 static void
 474 fd_blitter_pipe_end(struct fd_context *ctx)
 475 {
 476         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
 477 }
 478
 479 static void
 480 fd_flush_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
 481 {
 482         struct fd_resource *rsc = fd_resource(prsc);
 483
 484         if (rsc->dirty)
 485                 fd_context_render(pctx);
 486 }
 487
 488 void
 489 fd_resource_screen_init(struct pipe_screen *pscreen)
 490 {
 491         pscreen->resource_create = fd_resource_create;
 492         pscreen->resource_from_handle = fd_resource_from_handle;
 493         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 494         pscreen->resource_destroy = u_resource_destroy_vtbl;
 495 }
 496
 497 void
 498 fd_resource_context_init(struct pipe_context *pctx)
 499 {
 500         pctx->transfer_map = u_transfer_map_vtbl;
 501         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 502         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 503         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 504         pctx->create_surface = fd_create_surface;
 505         pctx->surface_destroy = fd_surface_destroy;
 506         pctx->resource_copy_region = fd_resource_copy_region;
 507         pctx->blit = fd_blit;
 508         pctx->flush_resource = fd_flush_resource;
 509 }