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_util.h"
  40
  41 #include <errno.h>
  42
  43 static void
  44 realloc_bo(struct fd_resource *rsc, uint32_t size)
  45 {
  46         struct fd_screen *screen = fd_screen(rsc->base.b.screen);
  47         uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
  48                         DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
  49
  50         if (rsc->bo)
  51                 fd_bo_del(rsc->bo);
  52
  53         rsc->bo = fd_bo_new(screen->dev, size, flags);
  54         rsc->timestamp = 0;
  55         rsc->dirty = false;
  56 }
  57
  58 static void fd_resource_transfer_flush_region(struct pipe_context *pctx,
  59                 struct pipe_transfer *ptrans,
  60                 const struct pipe_box *box)
  61 {
  62         struct fd_context *ctx = fd_context(pctx);
  63         struct fd_resource *rsc = fd_resource(ptrans->resource);
  64
  65         if (rsc->dirty)
  66                 fd_context_render(pctx);
  67
  68         if (rsc->timestamp) {
  69                 fd_pipe_wait(ctx->screen->pipe, rsc->timestamp);
  70                 rsc->timestamp = 0;
  71         }
  72 }
  73
  74 static void
  75 fd_resource_transfer_unmap(struct pipe_context *pctx,
  76                 struct pipe_transfer *ptrans)
  77 {
  78         struct fd_context *ctx = fd_context(pctx);
  79         struct fd_resource *rsc = fd_resource(ptrans->resource);
  80         if (!(ptrans->usage & PIPE_TRANSFER_UNSYNCHRONIZED))
  81                 fd_bo_cpu_fini(rsc->bo);
  82         pipe_resource_reference(&ptrans->resource, NULL);
  83         util_slab_free(&ctx->transfer_pool, ptrans);
  84 }
  85
  86 static void *
  87 fd_resource_transfer_map(struct pipe_context *pctx,
  88                 struct pipe_resource *prsc,
  89                 unsigned level, unsigned usage,
  90                 const struct pipe_box *box,
  91                 struct pipe_transfer **pptrans)
  92 {
  93         struct fd_context *ctx = fd_context(pctx);
  94         struct fd_resource *rsc = fd_resource(prsc);
  95         struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
  96         struct pipe_transfer *ptrans;
  97         enum pipe_format format = prsc->format;
  98         uint32_t op = 0;
  99         char *buf;
 100         int ret = 0;
 101
 102         ptrans = util_slab_alloc(&ctx->transfer_pool);
 103         if (!ptrans)
 104                 return NULL;
 105
 106         /* util_slab_alloc() doesn't zero: */
 107         memset(ptrans, 0, sizeof(*ptrans));
 108
 109         pipe_resource_reference(&ptrans->resource, prsc);
 110         ptrans->level = level;
 111         ptrans->usage = usage;
 112         ptrans->box = *box;
 113         ptrans->stride = slice->pitch * rsc->cpp;
 114         ptrans->layer_stride = ptrans->stride;
 115
 116         if (usage & PIPE_TRANSFER_READ)
 117                 op |= DRM_FREEDRENO_PREP_READ;
 118
 119         if (usage & PIPE_TRANSFER_WRITE)
 120                 op |= DRM_FREEDRENO_PREP_WRITE;
 121
 122         if (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)
 123                 op |= DRM_FREEDRENO_PREP_NOSYNC;
 124
 125         /* some state trackers (at least XA) don't do this.. */
 126         if (!(usage & (PIPE_TRANSFER_FLUSH_EXPLICIT | PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE)))
 127                 fd_resource_transfer_flush_region(pctx, ptrans, box);
 128
 129         if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) {
 130                 ret = fd_bo_cpu_prep(rsc->bo, ctx->screen->pipe, op);
 131                 if ((ret == -EBUSY) && (usage & PIPE_TRANSFER_DISCARD_WHOLE_RESOURCE))
 132                         realloc_bo(rsc, fd_bo_size(rsc->bo));
 133                 else if (ret)
 134                         goto fail;
 135         }
 136
 137         buf = fd_bo_map(rsc->bo);
 138         if (!buf) {
 139                 fd_resource_transfer_unmap(pctx, ptrans);
 140                 return NULL;
 141         }
 142
 143         *pptrans = ptrans;
 144
 145         return buf + slice->offset +
 146                 box->y / util_format_get_blockheight(format) * ptrans->stride +
 147                 box->x / util_format_get_blockwidth(format) * rsc->cpp +
 148                 box->z * slice->size0;
 149
 150 fail:
 151         fd_resource_transfer_unmap(pctx, ptrans);
 152         return NULL;
 153 }
 154
 155 static void
 156 fd_resource_destroy(struct pipe_screen *pscreen,
 157                 struct pipe_resource *prsc)
 158 {
 159         struct fd_resource *rsc = fd_resource(prsc);
 160         fd_bo_del(rsc->bo);
 161         FREE(rsc);
 162 }
 163
 164 static boolean
 165 fd_resource_get_handle(struct pipe_screen *pscreen,
 166                 struct pipe_resource *prsc,
 167                 struct winsys_handle *handle)
 168 {
 169         struct fd_resource *rsc = fd_resource(prsc);
 170
 171         return fd_screen_bo_get_handle(pscreen, rsc->bo,
 172                         rsc->slices[0].pitch * rsc->cpp, handle);
 173 }
 174
 175
 176 static const struct u_resource_vtbl fd_resource_vtbl = {
 177                 .resource_get_handle      = fd_resource_get_handle,
 178                 .resource_destroy         = fd_resource_destroy,
 179                 .transfer_map             = fd_resource_transfer_map,
 180                 .transfer_flush_region    = fd_resource_transfer_flush_region,
 181                 .transfer_unmap           = fd_resource_transfer_unmap,
 182                 .transfer_inline_write    = u_default_transfer_inline_write,
 183 };
 184
 185 static uint32_t
 186 setup_slices(struct fd_resource *rsc)
 187 {
 188         struct pipe_resource *prsc = &rsc->base.b;
 189         uint32_t level, size = 0;
 190         uint32_t width = prsc->width0;
 191         uint32_t height = prsc->height0;
 192         uint32_t depth = prsc->depth0;
 193
 194         for (level = 0; level <= prsc->last_level; level++) {
 195                 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
 196                 uint32_t aligned_width = align(width, 32);
 197
 198                 slice->pitch = aligned_width;
 199                 slice->offset = size;
 200                 slice->size0 = slice->pitch * height * rsc->cpp;
 201
 202                 size += slice->size0 * depth * prsc->array_size;
 203
 204                 width = u_minify(width, 1);
 205                 height = u_minify(height, 1);
 206                 depth = u_minify(depth, 1);
 207         }
 208
 209         return size;
 210 }
 211
 212 /**
 213  * Create a new texture object, using the given template info.
 214  */
 215 static struct pipe_resource *
 216 fd_resource_create(struct pipe_screen *pscreen,
 217                 const struct pipe_resource *tmpl)
 218 {
 219         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 220         struct pipe_resource *prsc = &rsc->base.b;
 221         uint32_t size;
 222
 223         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 224                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 225                         tmpl->target, util_format_name(tmpl->format),
 226                         tmpl->width0, tmpl->height0, tmpl->depth0,
 227                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 228                         tmpl->usage, tmpl->bind, tmpl->flags);
 229
 230         if (!rsc)
 231                 return NULL;
 232
 233         *prsc = *tmpl;
 234
 235         pipe_reference_init(&prsc->reference, 1);
 236         prsc->screen = pscreen;
 237
 238         rsc->base.vtbl = &fd_resource_vtbl;
 239         rsc->cpp = util_format_get_blocksize(tmpl->format);
 240
 241         assert(rsc->cpp);
 242
 243         size = setup_slices(rsc);
 244
 245         realloc_bo(rsc, size);
 246
 247         return prsc;
 248 }
 249
 250 /**
 251  * Create a texture from a winsys_handle. The handle is often created in
 252  * another process by first creating a pipe texture and then calling
 253  * resource_get_handle.
 254  */
 255 static struct pipe_resource *
 256 fd_resource_from_handle(struct pipe_screen *pscreen,
 257                 const struct pipe_resource *tmpl,
 258                 struct winsys_handle *handle)
 259 {
 260         struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 261         struct fd_resource_slice *slice = &rsc->slices[0];
 262         struct pipe_resource *prsc = &rsc->base.b;
 263
 264         DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 265                         "nr_samples=%u, usage=%u, bind=%x, flags=%x",
 266                         tmpl->target, util_format_name(tmpl->format),
 267                         tmpl->width0, tmpl->height0, tmpl->depth0,
 268                         tmpl->array_size, tmpl->last_level, tmpl->nr_samples,
 269                         tmpl->usage, tmpl->bind, tmpl->flags);
 270
 271         if (!rsc)
 272                 return NULL;
 273
 274         *prsc = *tmpl;
 275
 276         pipe_reference_init(&prsc->reference, 1);
 277         prsc->screen = pscreen;
 278
 279         rsc->bo = fd_screen_bo_from_handle(pscreen, handle, &slice->pitch);
 280
 281         rsc->base.vtbl = &fd_resource_vtbl;
 282         rsc->cpp = util_format_get_blocksize(tmpl->format);
 283         slice->pitch /= rsc->cpp;
 284
 285         assert(rsc->cpp);
 286
 287         return prsc;
 288 }
 289
 290 static bool render_blit(struct pipe_context *pctx, struct pipe_blit_info *info);
 291
 292 /**
 293  * Copy a block of pixels from one resource to another.
 294  * The resource must be of the same format.
 295  * Resources with nr_samples > 1 are not allowed.
 296  */
 297 static void
 298 fd_resource_copy_region(struct pipe_context *pctx,
 299                 struct pipe_resource *dst,
 300                 unsigned dst_level,
 301                 unsigned dstx, unsigned dsty, unsigned dstz,
 302                 struct pipe_resource *src,
 303                 unsigned src_level,
 304                 const struct pipe_box *src_box)
 305 {
 306         /* TODO if we have 2d core, or other DMA engine that could be used
 307          * for simple copies and reasonably easily synchronized with the 3d
 308          * core, this is where we'd plug it in..
 309          */
 310         struct pipe_blit_info info = {
 311                 .dst = {
 312                         .resource = dst,
 313                         .box = {
 314                                 .x      = dstx,
 315                                 .y      = dsty,
 316                                 .z      = dstz,
 317                                 .width  = src_box->width,
 318                                 .height = src_box->height,
 319                                 .depth  = src_box->depth,
 320                         },
 321                         .format = util_format_linear(dst->format),
 322                 },
 323                 .src = {
 324                         .resource = src,
 325                         .box      = *src_box,
 326                         .format   = util_format_linear(src->format),
 327                 },
 328                 .mask = PIPE_MASK_RGBA,
 329                 .filter = PIPE_TEX_FILTER_NEAREST,
 330         };
 331         render_blit(pctx, &info);
 332 }
 333
 334 /* Optimal hardware path for blitting pixels.
 335  * Scaling, format conversion, up- and downsampling (resolve) are allowed.
 336  */
 337 static void
 338 fd_blit(struct pipe_context *pctx, const struct pipe_blit_info *blit_info)
 339 {
 340         struct pipe_blit_info info = *blit_info;
 341
 342         if (info.src.resource->nr_samples > 1 &&
 343                         info.dst.resource->nr_samples <= 1 &&
 344                         !util_format_is_depth_or_stencil(info.src.resource->format) &&
 345                         !util_format_is_pure_integer(info.src.resource->format)) {
 346                 DBG("color resolve unimplemented");
 347                 return;
 348         }
 349
 350         if (util_try_blit_via_copy_region(pctx, &info)) {
 351                 return; /* done */
 352         }
 353
 354         if (info.mask & PIPE_MASK_S) {
 355                 DBG("cannot blit stencil, skipping");
 356                 info.mask &= ~PIPE_MASK_S;
 357         }
 358
 359         render_blit(pctx, &info);
 360 }
 361
 362 static bool
 363 render_blit(struct pipe_context *pctx, struct pipe_blit_info *info)
 364 {
 365         struct fd_context *ctx = fd_context(pctx);
 366
 367         if (!util_blitter_is_blit_supported(ctx->blitter, info)) {
 368                 DBG("blit unsupported %s -> %s",
 369                                 util_format_short_name(info->src.resource->format),
 370                                 util_format_short_name(info->dst.resource->format));
 371                 return false;
 372         }
 373
 374         util_blitter_save_vertex_buffer_slot(ctx->blitter, ctx->vertexbuf.vb);
 375         util_blitter_save_vertex_elements(ctx->blitter, ctx->vtx);
 376         util_blitter_save_vertex_shader(ctx->blitter, ctx->prog.vp);
 377         util_blitter_save_rasterizer(ctx->blitter, ctx->rasterizer);
 378         util_blitter_save_viewport(ctx->blitter, &ctx->viewport);
 379         util_blitter_save_scissor(ctx->blitter, &ctx->scissor);
 380         util_blitter_save_fragment_shader(ctx->blitter, ctx->prog.fp);
 381         util_blitter_save_blend(ctx->blitter, ctx->blend);
 382         util_blitter_save_depth_stencil_alpha(ctx->blitter, ctx->zsa);
 383         util_blitter_save_stencil_ref(ctx->blitter, &ctx->stencil_ref);
 384         util_blitter_save_sample_mask(ctx->blitter, ctx->sample_mask);
 385         util_blitter_save_framebuffer(ctx->blitter, &ctx->framebuffer);
 386         util_blitter_save_fragment_sampler_states(ctx->blitter,
 387                         ctx->fragtex.num_samplers,
 388                         (void **)ctx->fragtex.samplers);
 389         util_blitter_save_fragment_sampler_views(ctx->blitter,
 390                         ctx->fragtex.num_textures, ctx->fragtex.textures);
 391
 392         util_blitter_blit(ctx->blitter, info);
 393
 394         return true;
 395 }
 396
 397 void
 398 fd_resource_screen_init(struct pipe_screen *pscreen)
 399 {
 400         pscreen->resource_create = fd_resource_create;
 401         pscreen->resource_from_handle = fd_resource_from_handle;
 402         pscreen->resource_get_handle = u_resource_get_handle_vtbl;
 403         pscreen->resource_destroy = u_resource_destroy_vtbl;
 404 }
 405
 406 void
 407 fd_resource_context_init(struct pipe_context *pctx)
 408 {
 409         pctx->transfer_map = u_transfer_map_vtbl;
 410         pctx->transfer_flush_region = u_transfer_flush_region_vtbl;
 411         pctx->transfer_unmap = u_transfer_unmap_vtbl;
 412         pctx->transfer_inline_write = u_transfer_inline_write_vtbl;
 413         pctx->create_surface = fd_create_surface;
 414         pctx->surface_destroy = fd_surface_destroy;
 415         pctx->resource_copy_region = fd_resource_copy_region;
 416         pctx->blit = fd_blit;
 417 }