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 (rsc->bo)
  52                 fd_bo_del(rsc->bo);
  53
  54         rsc->bo = fd_bo_new(screen->dev, size, flags);
  55         rsc->timestamp = 0;
  56         rsc->dirty = false;
  57 }
  58
  59 static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
  60                 struct pipe_transfer *ptrans,
  61                 const struct pipe_box *box)
  62 {
  63         struct fd_context *ctx = fd_context(pctx);
  64         struct fd_resource *rsc = fd_resource(ptrans->resource);
  65
  66         if (rsc->dirty)
  67                 fd_context_render(pctx);
  68
  69         if (rsc->timestamp) {
  70                 fd_pipe_wait(ctx->screen->pipe, rsc->timestamp);
  71                 rsc->timestamp = 0;
  72         }
  73 }
  74
  75 static void
  76 fd_resource_transfer_unmap(struct pipe_context *pctx,
  77                 struct pipe_transfer *ptrans)
  78 {
  79         struct fd_context *ctx = fd_context(pctx);
  80         struct fd_resource *rsc = fd_resource(ptrans->resource);
  81         if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
  82                 fd_bo_cpu_fini(rsc->bo);
  83         pipe_resource_reference(&ptrans->resource, NULL);
  84         util_slab_free(&ctx->transfer_pool, ptrans);
  85 }
  86
  87 static void *
  88 fd_resource_transfer_map(struct pipe_context *pctx,
  89                 struct pipe_resource *prsc,
  90                 unsigned level, unsigned usage,
  91                 const struct pipe_box *box,
  92                 struct pipe_transfer **pptrans)
  93 {
  94         struct fd_context *ctx = fd_context(pctx);
  95         struct fd_resource *rsc = fd_resource(prsc);
  96         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
  97         struct pipe_transfer *ptrans;
  98         enum pipe_format format = prsc->format;
  99         uint32_t op = 0;
 100         char *buf;
 101         int ret = 0;
 102
 103         ptrans = util_slab_alloc(&ctx->transfer_pool);
 104         if (!ptrans)
 105                 return NULL;
 106
 107         /* util_slab_alloc() doesn't zero: */
 108         memset(ptrans, 0, sizeof(*ptrans));
 109
 110         pipe_resource_reference(&ptrans->resource, prsc);
 111         ptrans->level = level;
 112         ptrans->usage = usage;
 113         ptrans->box = *box;
 114         ptrans->stride = slice->pitch * rsc->cpp;
 115         ptrans->layer_stride = ptrans->stride;
 116
 117         if (usage & PIPE_TRANSFER_READ)
 118                 op |= DRM_FREEDRENO_PREP_READ;
 119
 120         if (usage & PIPE_TRANSFER_WRITE)
 121                 op |= DRM_FREEDRENO_PREP_WRITE;
 122
 123         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)
 124                 op |= DRM_FREEDRENO_PREP_NOSYNC;
 125
 126         /* some state trackers (at least XA) don't do this.. */
 127         if (!(usage & (PIPE_TRANSFER_FLUSH_EXPLICIT | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)))
 128                 fd_resource_transfer_flush_region(pctx, ptrans, box);
 129
 130         if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 131                 ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
 132                 if ((ret == -EBUSY) && (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE))
 133                         realloc_bo(rsc, fd_bo_size(rsc->bo));
 134                 else if (ret)
 135                         goto fail;
 136         }
 137
 138         buf = fd_bo_map(rsc->bo);
 139         if (!buf) {
 140                 fd_resource_transfer_unmap(pctx, ptrans);
 141                 return NULL;
 142         }
 143
 144         *pptrans = ptrans;
 145
 146         return buf + slice->offset +
 147                 box->y / util_format_get_blockheight(format) * ptrans->stride +
 148                 box->x / util_format_get_blockwidth(format) * rsc->cpp +
 149                 box->z * slice->size0;
 150
 151 fail:
 152         fd_resource_transfer_unmap(pctx, ptrans);
 153         return NULL;
 154 }
 155
 156 static void
 157 fd_resource_destroy(struct pipe_screen *pscreen,
 158                 struct pipe_resource *prsc)
 159 {
 160         struct fd_resource *rsc = fd_resource(prsc);
 161         if (rsc->bo)
 162                 fd_bo_del(rsc->bo);
 163         FREE(rsc);
 164 }
 165
 166 static boolean
 167 fd_resource_get_handle(struct pipe_screen *pscreen,
 168                 struct pipe_resource *prsc,
 169                 struct winsys_handle *handle)
 170 {
 171         struct fd_resource *rsc = fd_resource(prsc);
 172
 173         return fd_screen_bo_get_handle(pscreen, rsc->bo,
 174                         rsc->slices[0].pitch * rsc->cpp, handle);
 175 }
 176
 177
 178 static const struct u_resource_vtbl fd_resource_vtbl = {
 179                 .resource_get_handle      = fd_resource_get_handle,
 180                 .resource_destroy         = fd_resource_destroy,
 181                 .transfer_map             = fd_resource_transfer_map,
 182                 .transfer_flush_region    = fd_resource_transfer_flush_region,
 183                 .transfer_unmap           = fd_resource_transfer_unmap,
 184                 .transfer_inline_write    = u_default_transfer_inline_write,
 185 };
 186
 187 static uint32_t
 188 setup_slices(struct fd_resource *rsc)
 189 {
 190         struct pipe_resource *prsc = &rsc->base.b;
 191         uint32_t level, size = 0;
 192         uint32_t width = prsc->width0;
 193         uint32_t height = prsc->height0;
 194         uint32_t depth = prsc->depth0;
 195
 196         for (level = 0; level <= prsc->last_level; level++) {
 197                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 198                 uint32_t aligned_width = align(width, 32);
 199
 200                 slice->pitch = aligned_width;
 201                 slice->offset = size;
 202                 slice->size0 = slice->pitch * height * rsc->cpp;
 203
 204                 size += slice->size0 * depth * prsc->array_size;
 205
 206                 width = u_minify(width, 1);
 207                 height = u_minify(height, 1);
 208                 depth = u_minify(depth, 1);
 209         }
 210
 211         return size;
 212 }
 213
 214 /**
 215  * Create a new texture object, using the given template info.
 216  */
 217 static struct pipe_resource *
 218 fd_resource_create(struct pipe_screen *pscreen,
 219                 const struct pipe_resource *tmpl)
 220 {
 221         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 222         struct pipe_resource *prsc = &rsc->base.b;
 223         uint32_t size;
 224
 225         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 226                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 227                         tmpl->target, util_format_name(tmpl->format),
 228                         tmpl->width0, tmpl->height0, tmpl->depth0,
 229                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 230                         tmpl->usage, tmpl->bind, tmpl->flags);
 231
 232         if (!rsc)
 233                 return NULL;
 234
 235         *prsc = *tmpl;
 236
 237         pipe_reference_init(&prsc->reference, 1);
 238         prsc->screen = pscreen;
 239
 240         rsc->base.vtbl = &fd_resource_vtbl;
 241         rsc->cpp = util_format_get_blocksize(tmpl->format);
 242
 243         assert(rsc->cpp);
 244
 245         size = setup_slices(rsc);
 246
 247         realloc_bo(rsc, size);
 248         if (!rsc->bo)
 249                 goto fail;
 250
 251         return prsc;
 252 fail:
 253         fd_resource_destroy(pscreen, prsc);
 254         return NULL;
 255 }
 256
 257 /**
 258  * Create a texture from a winsys_handle. The handle is often created in
 259  * another process by first creating a pipe texture and then calling
 260  * resource_get_handle.
 261  */
 262 static struct pipe_resource *
 263 fd_resource_from_handle(struct pipe_screen *pscreen,
 264                 const struct pipe_resource *tmpl,
 265                 struct winsys_handle *handle)
 266 {
 267         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 268         struct fd_resource_slice *slice = &rsc->slices[0];
 269         struct pipe_resource *prsc = &rsc->base.b;
 270
 271         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 272                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 273                         tmpl->target, util_format_name(tmpl->format),
 274                         tmpl->width0, tmpl->height0, tmpl->depth0,
 275                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 276                         tmpl->usage, tmpl->bind, tmpl->flags);
 277
 278         if (!rsc)
 279                 return NULL;
 280
 281         *prsc = *tmpl;
 282
 283         pipe_reference_init(&prsc->reference, 1);
 284         prsc->screen = pscreen;
 285
 286         rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
 287         if (!rsc->bo)
 288                 goto fail;
 289
 290         rsc->base.vtbl = &fd_resource_vtbl;
 291         rsc->cpp = util_format_get_blocksize(tmpl->format);
 292         slice->pitch /= rsc->cpp;
 293
 294         assert(rsc->cpp);
 295
 296         return prsc;
 297
 298 fail:
 299         fd_resource_destroy(pscreen, prsc);
 300         return NULL;
 301 }
 302
 303 static bool render_blit(struct pipe_context *pctx, struct pipe_blit_info *info);
 304
 305 /**
 306  * Copy a block of pixels from one resource to another.
 307  * The resource must be of the same format.
 308  * Resources with nr_samples > 1 are not allowed.
 309  */
 310 static void
 311 fd_resource_copy_region(struct pipe_context *pctx,
 312                 struct pipe_resource *dst,
 313                 unsigned dst_level,
 314                 unsigned dstx, unsigned dsty, unsigned dstz,
 315                 struct pipe_resource *src,
 316                 unsigned src_level,
 317                 const struct pipe_box *src_box)
 318 {
 319         /* TODO if we have 2d core, or other DMA engine that could be used
 320          * for simple copies and reasonably easily synchronized with the 3d
 321          * core, this is where we'd plug it in..
 322          */
 323         struct pipe_blit_info info = {
 324                 .dst = {
 325                         .resource = dst,
 326                         .box = {
 327                                 .x      = dstx,
 328                                 .y      = dsty,
 329                                 .z      = dstz,
 330                                 .width  = src_box->width,
 331                                 .height = src_box->height,
 332                                 .depth  = src_box->depth,
 333                         },
 334                         .format = util_format_linear(dst->format),
 335                 },
 336                 .src = {
 337                         .resource = src,
 338                         .box      = *src_box,
 339                         .format   = util_format_linear(src->format),
 340                 },
 341                 .mask = PIPE_MASK_RGBA,
 342                 .filter = PIPE_TEX_FILTER_NEAREST,
 343         };
 344         render_blit(pctx, &info);
 345 }
 346
 347 /* Optimal hardware path for blitting pixels.
 348  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 349  */
 350 static void
 351 fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 352 {
 353         struct pipe_blit_info info = *blit_info;
 354
 355         if (info.src.resource->nr_samples > 1 &&
 356                         info.dst.resource->nr_samples <= 1 &&
 357                         !util_format_is_depth_or_stencil(info.src.resource->format) &&
 358                         !util_format_is_pure_integer(info.src.resource->format)) {
 359                 DBG("color resolve unimplemented");
 360                 return;
 361         }
 362
 363         if (util_try_blit_via_copy_region(pctx, &info)) {
 364                 return; /* done */
 365         }
 366
 367         if (info.mask & PIPE_MASK_S) {
 368                 DBG("cannot blit stencil, skipping");
 369                 info.mask &= ~PIPE_MASK_S;
 370         }
 371
 372         render_blit(pctx, &info);
 373 }
 374
 375 static bool
 376 render_blit(struct pipe_context *pctx, struct pipe_blit_info *info)
 377 {
 378         struct fd_context *ctx = fd_context(pctx);
 379
 380         if (!util_blitter_is_blit_supported(ctx->blitter, info)) {
 381                 DBG("blit unsupported %s -> %s",
 382                                 util_format_short_name(info->src.resource->format),
 383                                 util_format_short_name(info->dst.resource->format));
 384                 return false;
 385         }
 386
 387         util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vertexbuf.vb);
 388         util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx);
 389         util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
 390         util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
 391         util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
 392         util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 393         util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
 394         util_blitter_save_blend(ctx->blitter, ctx->blend);
 395         util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
 396         util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 397         util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
 398         util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
 399         util_blitter_save_fragment_sampler_states(ctx->blitter,
 400                         ctx->fragtex.num_samplers,
 401                         (void **)ctx->fragtex.samplers);
 402         util_blitter_save_fragment_sampler_views(ctx->blitter,
 403                         ctx->fragtex.num_textures, ctx->fragtex.textures);
 404
 405         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_BLIT);
 406         util_blitter_blit(ctx->blitter, info);
 407         fd_hw_query_set_stage(ctx, ctx->ring, FD_STAGE_NULL);
 408
 409         return true;
 410 }
 411
 412 static void
 413 fd_flush_resource(struct pipe_context *ctx, struct pipe_resource *resource)
 414 {
 415 }
 416
 417 void
 418 fd_resource_screen_init(struct pipe_screen *pscreen)
 419 {
 420         pscreen->resource_create = fd_resource_create;
 421         pscreen->resource_from_handle = fd_resource_from_handle;
 422         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 423         pscreen->resource_destroy = u_resource_destroy_vtbl;
 424 }
 425
 426 void
 427 fd_resource_context_init(struct pipe_context *pctx)
 428 {
 429         pctx->transfer_map = u_transfer_map_vtbl;
 430         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 431         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 432         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 433         pctx->create_surface = fd_create_surface;
 434         pctx->surface_destroy = fd_surface_destroy;
 435         pctx->resource_copy_region = fd_resource_copy_region;
 436         pctx->blit = fd_blit;
 437         pctx->flush_resource = fd_flush_resource;
 438 }