src/gallium/drivers/nouveau/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 OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE 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/nv50_context.h"
  29 #include "nv50/nv50_resource.h"
  30
  31 uint32_t
  32 nv50_tex_choose_tile_dims_helper(unsigned nx, unsigned ny, unsigned nz,
  33                                  bool is_3d)
  34 {
  35    uint32_t tile_mode = 0x000;
  36
  37    if (ny > 64) tile_mode = 0x040; /* height 128 tiles */
  38    else
  39    if (ny > 32) tile_mode = 0x030; /* height 64 tiles */
  40    else
  41    if (ny > 16) tile_mode = 0x020; /* height 32 tiles */
  42    else
  43    if (ny >  8) tile_mode = 0x010; /* height 16 tiles */
  44
  45    if (!is_3d)
  46       return tile_mode;
  47    else
  48       if (tile_mode > 0x020)
  49          tile_mode = 0x020;
  50
  51    if (nz > 16 && tile_mode < 0x020)
  52       return tile_mode | 0x500; /* depth 32 tiles */
  53    if (nz > 8) return tile_mode | 0x400; /* depth 16 tiles */
  54    if (nz > 4) return tile_mode | 0x300; /* depth 8 tiles */
  55    if (nz > 2) return tile_mode | 0x200; /* depth 4 tiles */
  56    if (nz > 1) return tile_mode | 0x100; /* depth 2 tiles */
  57
  58    return tile_mode;
  59 }
  60
  61 static uint32_t
  62 nv50_tex_choose_tile_dims(unsigned nx, unsigned ny, unsigned nz, bool is_3d)
  63 {
  64    return nv50_tex_choose_tile_dims_helper(nx, ny * 2, nz, is_3d);
  65 }
  66
  67 static uint32_t
  68 nv50_mt_choose_storage_type(struct nv50_miptree *mt, bool compressed)
  69 {
  70    const unsigned ms = util_logbase2(mt->base.base.nr_samples);
  71    uint32_t tile_flags;
  72
  73    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
  74       return 0;
  75    if (unlikely(mt->base.base.bind & PIPE_BIND_CURSOR))
  76       return 0;
  77
  78    switch (mt->base.base.format) {
  79    case PIPE_FORMAT_Z16_UNORM:
  80       tile_flags = 0x6c + ms;
  81       break;
  82    case PIPE_FORMAT_X8Z24_UNORM:
  83    case PIPE_FORMAT_S8X24_UINT:
  84    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
  85       tile_flags = 0x18 + ms;
  86       break;
  87    case PIPE_FORMAT_X24S8_UINT:
  88    case PIPE_FORMAT_Z24X8_UNORM:
  89    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
  90       tile_flags = 0x128 + ms;
  91       break;
  92    case PIPE_FORMAT_Z32_FLOAT:
  93       tile_flags = 0x40 + ms;
  94       break;
  95    case PIPE_FORMAT_X32_S8X24_UINT:
  96    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
  97       tile_flags = 0x60 + ms;
  98       break;
  99    default:
 100       /* Most color formats don't work with compression. */
 101       compressed = false;
 102       /* fallthrough */
 103    case PIPE_FORMAT_R8G8B8A8_UNORM:
 104    case PIPE_FORMAT_R8G8B8A8_SRGB:
 105    case PIPE_FORMAT_R8G8B8X8_UNORM:
 106    case PIPE_FORMAT_R8G8B8X8_SRGB:
 107    case PIPE_FORMAT_B8G8R8A8_UNORM:
 108    case PIPE_FORMAT_B8G8R8A8_SRGB:
 109    case PIPE_FORMAT_B8G8R8X8_UNORM:
 110    case PIPE_FORMAT_B8G8R8X8_SRGB:
 111    case PIPE_FORMAT_R10G10B10A2_UNORM:
 112    case PIPE_FORMAT_B10G10R10A2_UNORM:
 113    case PIPE_FORMAT_R16G16B16A16_FLOAT:
 114    case PIPE_FORMAT_R16G16B16X16_FLOAT:
 115    case PIPE_FORMAT_R11G11B10_FLOAT:
 116       switch (util_format_get_blocksizebits(mt->base.base.format)) {
 117       case 128:
 118          assert(ms < 3);
 119          tile_flags = 0x74;
 120          break;
 121       case 64:
 122          switch (ms) {
 123          case 2: tile_flags = 0xfc; break;
 124          case 3: tile_flags = 0xfd; break;
 125          default:
 126             tile_flags = 0x70;
 127             break;
 128          }
 129          break;
 130       case 32:
 131          if (mt->base.base.bind & PIPE_BIND_SCANOUT) {
 132             assert(ms == 0);
 133             tile_flags = 0x7a;
 134          } else {
 135             switch (ms) {
 136             case 2: tile_flags = 0xf8; break;
 137             case 3: tile_flags = 0xf9; break;
 138             default:
 139                tile_flags = 0x70;
 140                break;
 141             }
 142          }
 143          break;
 144       case 16:
 145       case 8:
 146          tile_flags = 0x70;
 147          break;
 148       default:
 149          return 0;
 150       }
 151       if (mt->base.base.bind & PIPE_BIND_CURSOR)
 152          tile_flags = 0;
 153    }
 154
 155    if (!compressed)
 156       tile_flags &= ~0x180;
 157
 158    return tile_flags;
 159 }
 160
 161 void
 162 nv50_miptree_destroy(struct pipe_screen *pscreen, struct pipe_resource *pt)
 163 {
 164    struct nv50_miptree *mt = nv50_miptree(pt);
 165
 166    nouveau_bo_ref(NULL, &mt->base.bo);
 167
 168    nouveau_fence_ref(NULL, &mt->base.fence);
 169    nouveau_fence_ref(NULL, &mt->base.fence_wr);
 170
 171    NOUVEAU_DRV_STAT(nouveau_screen(pscreen), tex_obj_current_count, -1);
 172    NOUVEAU_DRV_STAT(nouveau_screen(pscreen), tex_obj_current_bytes,
 173                     -(uint64_t)mt->total_size);
 174
 175    FREE(mt);
 176 }
 177
 178 boolean
 179 nv50_miptree_get_handle(struct pipe_screen *pscreen,
 180                         struct pipe_resource *pt,
 181                         struct winsys_handle *whandle)
 182 {
 183    struct nv50_miptree *mt = nv50_miptree(pt);
 184    unsigned stride;
 185
 186    if (!mt || !mt->base.bo)
 187       return false;
 188
 189    stride = mt->level[0].pitch;
 190
 191    return nouveau_screen_bo_get_handle(pscreen,
 192                                        mt->base.bo,
 193                                        stride,
 194                                        whandle);
 195 }
 196
 197 const struct u_resource_vtbl nv50_miptree_vtbl =
 198 {
 199    nv50_miptree_get_handle,         /* get_handle */
 200    nv50_miptree_destroy,            /* resource_destroy */
 201    nv50_miptree_transfer_map,       /* transfer_map */
 202    u_default_transfer_flush_region, /* transfer_flush_region */
 203    nv50_miptree_transfer_unmap,     /* transfer_unmap */
 204    u_default_transfer_inline_write  /* transfer_inline_write */
 205 };
 206
 207 static INLINE bool
 208 nv50_miptree_init_ms_mode(struct nv50_miptree *mt)
 209 {
 210    switch (mt->base.base.nr_samples) {
 211    case 8:
 212       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS8;
 213       mt->ms_x = 2;
 214       mt->ms_y = 1;
 215       break;
 216    case 4:
 217       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS4;
 218       mt->ms_x = 1;
 219       mt->ms_y = 1;
 220       break;
 221    case 2:
 222       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS2;
 223       mt->ms_x = 1;
 224       break;
 225    case 1:
 226    case 0:
 227       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS1;
 228       break;
 229    default:
 230       NOUVEAU_ERR("invalid nr_samples: %u\n", mt->base.base.nr_samples);
 231       return false;
 232    }
 233    return true;
 234 }
 235
 236 bool
 237 nv50_miptree_init_layout_linear(struct nv50_miptree *mt, unsigned pitch_align)
 238 {
 239    struct pipe_resource *pt = &mt->base.base;
 240    const unsigned blocksize = util_format_get_blocksize(pt->format);
 241    unsigned h = pt->height0;
 242
 243    if (util_format_is_depth_or_stencil(pt->format))
 244       return false;
 245
 246    if ((pt->last_level > 0) || (pt->depth0 > 1) || (pt->array_size > 1))
 247       return false;
 248    if (mt->ms_x | mt->ms_y)
 249       return false;
 250
 251    mt->level[0].pitch = align(pt->width0 * blocksize, pitch_align);
 252
 253    /* Account for very generous prefetch (allocate size as if tiled). */
 254    h = MAX2(h, 8);
 255    h = util_next_power_of_two(h);
 256
 257    mt->total_size = mt->level[0].pitch * h;
 258
 259    return true;
 260 }
 261
 262 static void
 263 nv50_miptree_init_layout_video(struct nv50_miptree *mt)
 264 {
 265    const struct pipe_resource *pt = &mt->base.base;
 266    const unsigned blocksize = util_format_get_blocksize(pt->format);
 267
 268    assert(pt->last_level == 0);
 269    assert(mt->ms_x == 0 && mt->ms_y == 0);
 270    assert(!util_format_is_compressed(pt->format));
 271
 272    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 273
 274    mt->level[0].tile_mode = 0x20;
 275    mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 276    mt->total_size = align(pt->height0, 16) * mt->level[0].pitch * (mt->layout_3d ? pt->depth0 : 1);
 277
 278    if (pt->array_size > 1) {
 279       mt->layer_stride = align(mt->total_size, NV50_TILE_SIZE(0x20));
 280       mt->total_size = mt->layer_stride * pt->array_size;
 281    }
 282 }
 283
 284 static void
 285 nv50_miptree_init_layout_tiled(struct nv50_miptree *mt)
 286 {
 287    struct pipe_resource *pt = &mt->base.base;
 288    unsigned w, h, d, l;
 289    const unsigned blocksize = util_format_get_blocksize(pt->format);
 290
 291    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 292
 293    w = pt->width0 << mt->ms_x;
 294    h = pt->height0 << mt->ms_y;
 295
 296    /* For 3D textures, a mipmap is spanned by all the layers, for array
 297     * textures and cube maps, each layer contains its own mipmaps.
 298     */
 299    d = mt->layout_3d ? pt->depth0 : 1;
 300
 301    for (l = 0; l <= pt->last_level; ++l) {
 302       struct nv50_miptree_level *lvl = &mt->level[l];
 303       unsigned tsx, tsy, tsz;
 304       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 305       unsigned nby = util_format_get_nblocksy(pt->format, h);
 306
 307       lvl->offset = mt->total_size;
 308
 309       lvl->tile_mode = nv50_tex_choose_tile_dims(nbx, nby, d, mt->layout_3d);
 310
 311       tsx = NV50_TILE_SIZE_X(lvl->tile_mode); /* x is tile row pitch in bytes */
 312       tsy = NV50_TILE_SIZE_Y(lvl->tile_mode);
 313       tsz = NV50_TILE_SIZE_Z(lvl->tile_mode);
 314
 315       lvl->pitch = align(nbx * blocksize, tsx);
 316
 317       mt->total_size += lvl->pitch * align(nby, tsy) * align(d, tsz);
 318
 319       w = u_minify(w, 1);
 320       h = u_minify(h, 1);
 321       d = u_minify(d, 1);
 322    }
 323
 324    if (pt->array_size > 1) {
 325       mt->layer_stride = align(mt->total_size,
 326                                NV50_TILE_SIZE(mt->level[0].tile_mode));
 327       mt->total_size = mt->layer_stride * pt->array_size;
 328    }
 329 }
 330
 331 struct pipe_resource *
 332 nv50_miptree_create(struct pipe_screen *pscreen,
 333                     const struct pipe_resource *templ)
 334 {
 335    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 336    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
 337    struct pipe_resource *pt = &mt->base.base;
 338    bool compressed = dev->drm_version >= 0x01000101;
 339    int ret;
 340    union nouveau_bo_config bo_config;
 341    uint32_t bo_flags;
 342
 343    if (!mt)
 344       return NULL;
 345
 346    mt->base.vtbl = &nv50_miptree_vtbl;
 347    *pt = *templ;
 348    pipe_reference_init(&pt->reference, 1);
 349    pt->screen = pscreen;
 350
 351    if (pt->bind & PIPE_BIND_LINEAR)
 352       pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
 353
 354    bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, compressed);
 355
 356    if (!nv50_miptree_init_ms_mode(mt)) {
 357       FREE(mt);
 358       return NULL;
 359    }
 360
 361    if (unlikely(pt->flags & NV50_RESOURCE_FLAG_VIDEO)) {
 362       nv50_miptree_init_layout_video(mt);
 363       if (pt->flags & NV50_RESOURCE_FLAG_NOALLOC) {
 364          /* BO allocation done by client */
 365          return pt;
 366       }
 367    } else
 368    if (bo_config.nv50.memtype != 0) {
 369       nv50_miptree_init_layout_tiled(mt);
 370    } else
 371    if (!nv50_miptree_init_layout_linear(mt, 64)) {
 372       FREE(mt);
 373       return NULL;
 374    }
 375    bo_config.nv50.tile_mode = mt->level[0].tile_mode;
 376
 377    if (!bo_config.nv50.memtype && (pt->bind & PIPE_BIND_SHARED))
 378       mt->base.domain = NOUVEAU_BO_GART;
 379    else
 380       mt->base.domain = NV_VRAM_DOMAIN(nouveau_screen(pscreen));
 381
 382    bo_flags = mt->base.domain | NOUVEAU_BO_NOSNOOP;
 383    if (mt->base.base.bind & (PIPE_BIND_CURSOR | PIPE_BIND_DISPLAY_TARGET))
 384       bo_flags |= NOUVEAU_BO_CONTIG;
 385
 386    ret = nouveau_bo_new(dev, bo_flags, 4096, mt->total_size, &bo_config,
 387                         &mt->base.bo);
 388    if (ret) {
 389       FREE(mt);
 390       return NULL;
 391    }
 392    mt->base.address = mt->base.bo->offset;
 393
 394    return pt;
 395 }
 396
 397 struct pipe_resource *
 398 nv50_miptree_from_handle(struct pipe_screen *pscreen,
 399                          const struct pipe_resource *templ,
 400                          struct winsys_handle *whandle)
 401 {
 402    struct nv50_miptree *mt;
 403    unsigned stride;
 404
 405    /* only supports 2D, non-mipmapped textures for the moment */
 406    if ((templ->target != PIPE_TEXTURE_2D &&
 407         templ->target != PIPE_TEXTURE_RECT) ||
 408        templ->last_level != 0 ||
 409        templ->depth0 != 1 ||
 410        templ->array_size > 1)
 411       return NULL;
 412
 413    mt = CALLOC_STRUCT(nv50_miptree);
 414    if (!mt)
 415       return NULL;
 416
 417    mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
 418    if (mt->base.bo == NULL) {
 419       FREE(mt);
 420       return NULL;
 421    }
 422    mt->base.domain = mt->base.bo->flags & NOUVEAU_BO_APER;
 423    mt->base.address = mt->base.bo->offset;
 424
 425    mt->base.base = *templ;
 426    mt->base.vtbl = &nv50_miptree_vtbl;
 427    pipe_reference_init(&mt->base.base.reference, 1);
 428    mt->base.base.screen = pscreen;
 429    mt->level[0].pitch = stride;
 430    mt->level[0].offset = 0;
 431    mt->level[0].tile_mode = mt->base.bo->config.nv50.tile_mode;
 432
 433    NOUVEAU_DRV_STAT(nouveau_screen(pscreen), tex_obj_current_count, 1);
 434
 435    /* no need to adjust bo reference count */
 436    return &mt->base.base;
 437 }
 438
 439
 440 /* Offset of zslice @z from start of level @l. */
 441 INLINE unsigned
 442 nv50_mt_zslice_offset(const struct nv50_miptree *mt, unsigned l, unsigned z)
 443 {
 444    const struct pipe_resource *pt = &mt->base.base;
 445
 446    unsigned tds = NV50_TILE_SHIFT_Z(mt->level[l].tile_mode);
 447    unsigned ths = NV50_TILE_SHIFT_Y(mt->level[l].tile_mode);
 448
 449    unsigned nby = util_format_get_nblocksy(pt->format,
 450                                            u_minify(pt->height0, l));
 451
 452    /* to next 2D tile slice within a 3D tile */
 453    unsigned stride_2d = NV50_TILE_SIZE_2D(mt->level[l].tile_mode);
 454
 455    /* to slice in the next (in z direction) 3D tile */
 456    unsigned stride_3d = (align(nby, (1 << ths)) * mt->level[l].pitch) << tds;
 457
 458    return (z & ((1 << tds) - 1)) * stride_2d + (z >> tds) * stride_3d;
 459 }
 460
 461 /* Surface functions.
 462  */
 463
 464 struct nv50_surface *
 465 nv50_surface_from_miptree(struct nv50_miptree *mt,
 466                           const struct pipe_surface *templ)
 467 {
 468    struct pipe_surface *ps;
 469    struct nv50_surface *ns = CALLOC_STRUCT(nv50_surface);
 470    if (!ns)
 471       return NULL;
 472    ps = &ns->base;
 473
 474    pipe_reference_init(&ps->reference, 1);
 475    pipe_resource_reference(&ps->texture, &mt->base.base);
 476
 477    ps->format = templ->format;
 478    ps->writable = templ->writable;
 479    ps->u.tex.level = templ->u.tex.level;
 480    ps->u.tex.first_layer = templ->u.tex.first_layer;
 481    ps->u.tex.last_layer = templ->u.tex.last_layer;
 482
 483    ns->width = u_minify(mt->base.base.width0, ps->u.tex.level);
 484    ns->height = u_minify(mt->base.base.height0, ps->u.tex.level);
 485    ns->depth = ps->u.tex.last_layer - ps->u.tex.first_layer + 1;
 486    ns->offset = mt->level[templ->u.tex.level].offset;
 487
 488    /* comment says there are going to be removed, but they're used by the st */
 489    ps->width = ns->width;
 490    ps->height = ns->height;
 491
 492    ns->width <<= mt->ms_x;
 493    ns->height <<= mt->ms_y;
 494
 495    return ns;
 496 }
 497
 498 struct pipe_surface *
 499 nv50_miptree_surface_new(struct pipe_context *pipe,
 500                          struct pipe_resource *pt,
 501                          const struct pipe_surface *templ)
 502 {
 503    struct nv50_miptree *mt = nv50_miptree(pt);
 504    struct nv50_surface *ns = nv50_surface_from_miptree(mt, templ);
 505    if (!ns)
 506       return NULL;
 507    ns->base.context = pipe;
 508
 509    if (ns->base.u.tex.first_layer) {
 510       const unsigned l = ns->base.u.tex.level;
 511       const unsigned z = ns->base.u.tex.first_layer;
 512
 513       if (mt->layout_3d) {
 514          ns->offset += nv50_mt_zslice_offset(mt, l, z);
 515
 516          /* TODO: switch to depth 1 tiles; but actually this shouldn't happen */
 517          if (ns->depth > 1 &&
 518              (z & (NV50_TILE_SIZE_Z(mt->level[l].tile_mode) - 1)))
 519             NOUVEAU_ERR("Creating unsupported 3D surface !\n");
 520       } else {
 521          ns->offset += mt->layer_stride * z;
 522       }
 523    }
 524
 525    return &ns->base;
 526 }