src/gallium/drivers/nv50/nv50_miptree.c

   1 /*
   2  * Copyright 2008 Ben Skeggs
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #include "pipe/p_state.h"
  24 #include "pipe/p_defines.h"
  25 #include "util/u_inlines.h"
  26 #include "util/u_format.h"
  27
  28 #include "nv50_context.h"
  29 #include "nv50_resource.h"
  30
  31 uint32_t
  32 nv50_tex_choose_tile_dims_helper(unsigned nx, unsigned ny, unsigned nz)
  33 {
  34    uint32_t tile_mode = 0x000;
  35
  36    if (ny > 64) tile_mode = 0x040; /* height 128 tiles */
  37    else
  38    if (ny > 32) tile_mode = 0x030; /* height 64 tiles */
  39    else
  40    if (ny > 16) tile_mode = 0x020; /* height 32 tiles */
  41    else
  42    if (ny >  8) tile_mode = 0x010; /* height 16 tiles */
  43
  44    if (nz == 1)
  45       return tile_mode;
  46    else
  47       if (tile_mode > 0x020)
  48          tile_mode = 0x020;
  49
  50    if (nz > 16 && tile_mode < 0x020)
  51       return tile_mode | 0x500; /* depth 32 tiles */
  52    if (nz > 8) return tile_mode | 0x400; /* depth 16 tiles */
  53    if (nz > 4) return tile_mode | 0x300; /* depth 8 tiles */
  54    if (nz > 2) return tile_mode | 0x200; /* depth 4 tiles */
  55
  56    return tile_mode | 0x100;
  57 }
  58
  59 static uint32_t
  60 nv50_tex_choose_tile_dims(unsigned nx, unsigned ny, unsigned nz)
  61 {
  62    return nv50_tex_choose_tile_dims_helper(nx, ny * 2, nz);
  63 }
  64
  65 static uint32_t
  66 nv50_mt_choose_storage_type(struct nv50_miptree *mt, boolean compressed)
  67 {
  68    const unsigned ms = mt->ms_x + mt->ms_y;
  69
  70    uint32_t tile_flags;
  71
  72    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
  73       return 0;
  74    if (unlikely(mt->base.base.bind & PIPE_BIND_CURSOR))
  75       return 0;
  76
  77    switch (mt->base.base.format) {
  78    case PIPE_FORMAT_Z16_UNORM:
  79       tile_flags = 0x6c + ms;
  80       break;
  81    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
  82       tile_flags = 0x18 + ms;
  83       break;
  84    case PIPE_FORMAT_Z24X8_UNORM:
  85    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
  86       tile_flags = 0x128 + ms;
  87       break;
  88    case PIPE_FORMAT_Z32_FLOAT:
  89       tile_flags = 0x40 + ms;
  90       break;
  91    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
  92       tile_flags = 0x60 + ms;
  93       break;
  94    default:
  95       switch (util_format_get_blocksizebits(mt->base.base.format)) {
  96       case 128:
  97          assert(ms < 3);
  98          tile_flags = 0x74;
  99          break;
 100       case 64:
 101          switch (ms) {
 102          case 2: tile_flags = 0xfc; break;
 103          case 3: tile_flags = 0xfd; break;
 104          default:
 105             tile_flags = 0x70;
 106             break;
 107          }
 108          break;
 109       case 32:
 110          if (mt->base.base.bind & PIPE_BIND_SCANOUT) {
 111             assert(ms == 0);
 112             tile_flags = 0x7a;
 113          } else {
 114             switch (ms) {
 115             case 2: tile_flags = 0xf8; break;
 116             case 3: tile_flags = 0xf9; break;
 117             default:
 118                tile_flags = 0x70;
 119                break;
 120             }
 121          }
 122          break;
 123       case 16:
 124       case 8:
 125          tile_flags = 0x70;
 126          break;
 127       default:
 128          return 0;
 129       }
 130       if (mt->base.base.bind & PIPE_BIND_CURSOR)
 131          tile_flags = 0;
 132    }
 133
 134    if (!compressed)
 135       tile_flags &= ~0x180;
 136
 137    return tile_flags;
 138 }
 139
 140 void
 141 nv50_miptree_destroy(struct pipe_screen *pscreen, struct pipe_resource *pt)
 142 {
 143    struct nv50_miptree *mt = nv50_miptree(pt);
 144
 145    nouveau_bo_ref(NULL, &mt->base.bo);
 146
 147    nouveau_fence_ref(NULL, &mt->base.fence);
 148    nouveau_fence_ref(NULL, &mt->base.fence_wr);
 149
 150    FREE(mt);
 151 }
 152
 153 boolean
 154 nv50_miptree_get_handle(struct pipe_screen *pscreen,
 155                         struct pipe_resource *pt,
 156                         struct winsys_handle *whandle)
 157 {
 158    struct nv50_miptree *mt = nv50_miptree(pt);
 159    unsigned stride;
 160
 161    if (!mt || !mt->base.bo)
 162       return FALSE;
 163
 164    stride = mt->level[0].pitch;
 165
 166    return nouveau_screen_bo_get_handle(pscreen,
 167                                        mt->base.bo,
 168                                        stride,
 169                                        whandle);
 170 }
 171
 172 const struct u_resource_vtbl nv50_miptree_vtbl =
 173 {
 174    nv50_miptree_get_handle,         /* get_handle */
 175    nv50_miptree_destroy,            /* resource_destroy */
 176    nv50_miptree_transfer_map,       /* transfer_map */
 177    u_default_transfer_flush_region, /* transfer_flush_region */
 178    nv50_miptree_transfer_unmap,     /* transfer_unmap */
 179    u_default_transfer_inline_write  /* transfer_inline_write */
 180 };
 181
 182 static INLINE boolean
 183 nv50_miptree_init_ms_mode(struct nv50_miptree *mt)
 184 {
 185    switch (mt->base.base.nr_samples) {
 186    case 8:
 187       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS8;
 188       mt->ms_x = 2;
 189       mt->ms_y = 1;
 190       break;
 191    case 4:
 192       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS4;
 193       mt->ms_x = 1;
 194       mt->ms_y = 1;
 195       break;
 196    case 2:
 197       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS2;
 198       mt->ms_x = 1;
 199       break;
 200    case 1:
 201    case 0:
 202       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS1;
 203       break;
 204    default:
 205       NOUVEAU_ERR("invalid nr_samples: %u\n", mt->base.base.nr_samples);
 206       return FALSE;
 207    }
 208    return TRUE;
 209 }
 210
 211 boolean
 212 nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
 213 {
 214    struct pipe_resource *pt = &mt->base.base;
 215    const unsigned blocksize = util_format_get_blocksize(pt->format);
 216
 217    if (util_format_is_depth_or_stencil(pt->format))
 218       return FALSE;
 219
 220    if ((pt->last_level > 0) || (pt->depth0 > 1) || (pt->array_size > 1))
 221       return FALSE;
 222    if (mt->ms_x | mt->ms_y)
 223       return FALSE;
 224
 225    mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 226
 227    mt->total_size = mt->level[0].pitch * pt->height0;
 228
 229    return TRUE;
 230 }
 231
 232 static void
 233 nv50_miptree_init_layout_tiled(struct nv50_miptree *mt)
 234 {
 235    struct pipe_resource *pt = &mt->base.base;
 236    unsigned w, h, d, l;
 237    const unsigned blocksize = util_format_get_blocksize(pt->format);
 238
 239    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 240
 241    w = pt->width0 << mt->ms_x;
 242    h = pt->height0 << mt->ms_y;
 243
 244    /* For 3D textures, a mipmap is spanned by all the layers, for array
 245     * textures and cube maps, each layer contains its own mipmaps.
 246     */
 247    d = mt->layout_3d ? pt->depth0 : 1;
 248
 249    for (l = 0; l <= pt->last_level; ++l) {
 250       struct nv50_miptree_level *lvl = &mt->level[l];
 251       unsigned tsx, tsy, tsz;
 252       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 253       unsigned nby = util_format_get_nblocksy(pt->format, h);
 254
 255       lvl->offset = mt->total_size;
 256
 257       lvl->tile_mode = nv50_tex_choose_tile_dims(nbx, nby, d);
 258
 259       tsx = NV50_TILE_SIZE_X(lvl->tile_mode); /* x is tile row pitch in bytes */
 260       tsy = NV50_TILE_SIZE_Y(lvl->tile_mode);
 261       tsz = NV50_TILE_SIZE_Z(lvl->tile_mode);
 262
 263       lvl->pitch = align(nbx * blocksize, tsx);
 264
 265       mt->total_size += lvl->pitch * align(nby, tsy) * align(d, tsz);
 266
 267       w = u_minify(w, 1);
 268       h = u_minify(h, 1);
 269       d = u_minify(d, 1);
 270    }
 271
 272    if (pt->array_size > 1) {
 273       mt->layer_stride = align(mt->total_size,
 274                                NV50_TILE_SIZE(mt->level[0].tile_mode));
 275       mt->total_size = mt->layer_stride * pt->array_size;
 276    }
 277 }
 278
 279 struct pipe_resource *
 280 nv50_miptree_create(struct pipe_screen *pscreen,
 281                     const struct pipe_resource *templ)
 282 {
 283    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 284    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
 285    struct pipe_resource *pt = &mt->base.base;
 286    int ret;
 287    union nouveau_bo_config bo_config;
 288    uint32_t bo_flags;
 289
 290    if (!mt)
 291       return NULL;
 292
 293    mt->base.vtbl = &nv50_miptree_vtbl;
 294    *pt = *templ;
 295    pipe_reference_init(&pt->reference, 1);
 296    pt->screen = pscreen;
 297
 298    bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, TRUE);
 299
 300    if (!nv50_miptree_init_ms_mode(mt)) {
 301       FREE(mt);
 302       return NULL;
 303    }
 304
 305    if (bo_config.nv50.memtype != 0) {
 306       nv50_miptree_init_layout_tiled(mt);
 307    } else
 308    if (!nv50_miptree_init_layout_linear(mt)) {
 309       FREE(mt);
 310       return NULL;
 311    }
 312    bo_config.nv50.tile_mode = mt->level[0].tile_mode;
 313
 314    bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_NOSNOOP;
 315    if (mt->base.base.bind & (PIPE_BIND_CURSOR | PIPE_BIND_DISPLAY_TARGET))
 316       bo_flags |= NOUVEAU_BO_CONTIG;
 317
 318    ret = nouveau_bo_new(dev, bo_flags, 4096, mt->total_size, &bo_config,
 319                         &mt->base.bo);
 320    if (ret) {
 321       FREE(mt);
 322       return NULL;
 323    }
 324    mt->base.domain = NOUVEAU_BO_VRAM;
 325    mt->base.address = mt->base.bo->offset;
 326
 327    return pt;
 328 }
 329
 330 struct pipe_resource *
 331 nv50_miptree_from_handle(struct pipe_screen *pscreen,
 332                          const struct pipe_resource *templ,
 333                          struct winsys_handle *whandle)
 334 {
 335    struct nv50_miptree *mt;
 336    unsigned stride;
 337
 338    /* only supports 2D, non-mipmapped textures for the moment */
 339    if ((templ->target != PIPE_TEXTURE_2D &&
 340         templ->target != PIPE_TEXTURE_RECT) ||
 341        templ->last_level != 0 ||
 342        templ->depth0 != 1 ||
 343        templ->array_size > 1)
 344       return NULL;
 345
 346    mt = CALLOC_STRUCT(nv50_miptree);
 347    if (!mt)
 348       return NULL;
 349
 350    mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
 351    if (mt->base.bo == NULL) {
 352       FREE(mt);
 353       return NULL;
 354    }
 355    mt->base.domain = NOUVEAU_BO_VRAM;
 356    mt->base.address = mt->base.bo->offset;
 357
 358    mt->base.base = *templ;
 359    mt->base.vtbl = &nv50_miptree_vtbl;
 360    pipe_reference_init(&mt->base.base.reference, 1);
 361    mt->base.base.screen = pscreen;
 362    mt->level[0].pitch = stride;
 363    mt->level[0].offset = 0;
 364    mt->level[0].tile_mode = mt->base.bo->config.nv50.tile_mode;
 365
 366    /* no need to adjust bo reference count */
 367    return &mt->base.base;
 368 }
 369
 370
 371 /* Offset of zslice @z from start of level @l. */
 372 INLINE unsigned
 373 nv50_mt_zslice_offset(const struct nv50_miptree *mt, unsigned l, unsigned z)
 374 {
 375    const struct pipe_resource *pt = &mt->base.base;
 376
 377    unsigned tds = NV50_TILE_SHIFT_Z(mt->level[l].tile_mode);
 378    unsigned ths = NV50_TILE_SHIFT_Y(mt->level[l].tile_mode);
 379
 380    unsigned nby = util_format_get_nblocksy(pt->format,
 381                                            u_minify(pt->height0, l));
 382
 383    /* to next 2D tile slice within a 3D tile */
 384    unsigned stride_2d = NV50_TILE_SIZE_2D(mt->level[l].tile_mode);
 385
 386    /* to slice in the next (in z direction) 3D tile */
 387    unsigned stride_3d = (align(nby, (1 << ths)) * mt->level[l].pitch) << tds;
 388
 389    return (z & ((1 << tds) - 1)) * stride_2d + (z >> tds) * stride_3d;
 390 }
 391
 392 /* Surface functions.
 393  */
 394
 395 struct nv50_surface *
 396 nv50_surface_from_miptree(struct nv50_miptree *mt,
 397                           const struct pipe_surface *templ)
 398 {
 399    struct pipe_surface *ps;
 400    struct nv50_surface *ns = CALLOC_STRUCT(nv50_surface);
 401    if (!ns)
 402       return NULL;
 403    ps = &ns->base;
 404
 405    pipe_reference_init(&ps->reference, 1);
 406    pipe_resource_reference(&ps->texture, &mt->base.base);
 407
 408    ps->format = templ->format;
 409    ps->writable = templ->writable;
 410    ps->u.tex.level = templ->u.tex.level;
 411    ps->u.tex.first_layer = templ->u.tex.first_layer;
 412    ps->u.tex.last_layer = templ->u.tex.last_layer;
 413
 414    ns->width = u_minify(mt->base.base.width0, ps->u.tex.level);
 415    ns->height = u_minify(mt->base.base.height0, ps->u.tex.level);
 416    ns->depth = ps->u.tex.last_layer - ps->u.tex.first_layer + 1;
 417    ns->offset = mt->level[templ->u.tex.level].offset;
 418
 419    /* comment says there are going to be removed, but they're used by the st */
 420    ps->width = ns->width;
 421    ps->height = ns->height;
 422
 423    ns->width <<= mt->ms_x;
 424    ns->height <<= mt->ms_y;
 425
 426    return ns;
 427 }
 428
 429 struct pipe_surface *
 430 nv50_miptree_surface_new(struct pipe_context *pipe,
 431                          struct pipe_resource *pt,
 432                          const struct pipe_surface *templ)
 433 {
 434    struct nv50_miptree *mt = nv50_miptree(pt);
 435    struct nv50_surface *ns = nv50_surface_from_miptree(mt, templ);
 436    if (!ns)
 437       return NULL;
 438    ns->base.context = pipe;
 439
 440    if (ns->base.u.tex.first_layer) {
 441       const unsigned l = ns->base.u.tex.level;
 442       const unsigned z = ns->base.u.tex.first_layer;
 443
 444       if (mt->layout_3d) {
 445          ns->offset += nv50_mt_zslice_offset(mt, l, z);
 446
 447          /* TODO: switch to depth 1 tiles; but actually this shouldn't happen */
 448          if (ns->depth > 1 &&
 449              (z & (NV50_TILE_SIZE_Z(mt->level[l].tile_mode) - 1)))
 450             NOUVEAU_ERR("Creating unsupported 3D surface !\n");
 451       } else {
 452          ns->offset += mt->layer_stride * z;
 453       }
 454    }
 455
 456    return &ns->base;
 457 }