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 static INLINE uint32_t
  32 nv50_tex_choose_tile_dims(unsigned nx, unsigned ny, unsigned nz)
  33 {
  34    return nvc0_tex_choose_tile_dims(nx, ny * 2, nz);
  35 }
  36
  37 static uint32_t
  38 nv50_mt_choose_storage_type(struct nv50_miptree *mt, boolean compressed)
  39 {
  40    const unsigned ms = mt->ms_x + mt->ms_y;
  41
  42    uint32_t tile_flags;
  43
  44    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
  45       return 0;
  46    if (unlikely(mt->base.base.bind & PIPE_BIND_CURSOR))
  47       return 0;
  48
  49    switch (mt->base.base.format) {
  50    case PIPE_FORMAT_Z16_UNORM:
  51       tile_flags = 0x6c + ms;
  52       break;
  53    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
  54       tile_flags = 0x18 + ms;
  55       break;
  56    case PIPE_FORMAT_Z24X8_UNORM:
  57    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
  58       tile_flags = 0x128 + ms;
  59       break;
  60    case PIPE_FORMAT_Z32_FLOAT:
  61       tile_flags = 0x40 + ms;
  62       break;
  63    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
  64       tile_flags = 0x60 + ms;
  65       break;
  66    default:
  67       switch (util_format_get_blocksizebits(mt->base.base.format)) {
  68       case 128:
  69          assert(ms < 3);
  70          tile_flags = 0x74;
  71          break;
  72       case 64:
  73          switch (ms) {
  74          case 2: tile_flags = 0xfc; break;
  75          case 3: tile_flags = 0xfd; break;
  76          default:
  77             tile_flags = 0x70;
  78             break;
  79          }
  80          break;
  81       case 32:
  82          if (mt->base.base.bind & PIPE_BIND_SCANOUT) {
  83             assert(ms == 0);
  84             tile_flags = 0x7a;
  85          } else {
  86             switch (ms) {
  87             case 2: tile_flags = 0xf8; break;
  88             case 3: tile_flags = 0xf9; break;
  89             default:
  90                tile_flags = 0x70;
  91                break;
  92             }
  93          }
  94          break;
  95       case 16:
  96       case 8:
  97          tile_flags = 0x70;
  98          break;
  99       default:
 100          return 0;
 101       }
 102       if (mt->base.base.bind & PIPE_BIND_CURSOR)
 103          tile_flags = 0;
 104    }
 105
 106    if (!compressed)
 107       tile_flags &= ~0x180;
 108
 109    return tile_flags;
 110 }
 111
 112 void
 113 nv50_miptree_destroy(struct pipe_screen *pscreen, struct pipe_resource *pt)
 114 {
 115    struct nv50_miptree *mt = nv50_miptree(pt);
 116
 117    nouveau_bo_ref(NULL, &mt->base.bo);
 118
 119    nouveau_fence_ref(NULL, &mt->base.fence);
 120    nouveau_fence_ref(NULL, &mt->base.fence_wr);
 121
 122    FREE(mt);
 123 }
 124
 125 boolean
 126 nv50_miptree_get_handle(struct pipe_screen *pscreen,
 127                         struct pipe_resource *pt,
 128                         struct winsys_handle *whandle)
 129 {
 130    struct nv50_miptree *mt = nv50_miptree(pt);
 131    unsigned stride;
 132
 133    if (!mt || !mt->base.bo)
 134       return FALSE;
 135
 136    stride = mt->level[0].pitch;
 137
 138    return nouveau_screen_bo_get_handle(pscreen,
 139                                        mt->base.bo,
 140                                        stride,
 141                                        whandle);
 142 }
 143
 144 const struct u_resource_vtbl nv50_miptree_vtbl =
 145 {
 146    nv50_miptree_get_handle,         /* get_handle */
 147    nv50_miptree_destroy,            /* resource_destroy */
 148    nv50_miptree_transfer_map,       /* transfer_map */
 149    u_default_transfer_flush_region, /* transfer_flush_region */
 150    nv50_miptree_transfer_unmap,     /* transfer_unmap */
 151    u_default_transfer_inline_write  /* transfer_inline_write */
 152 };
 153
 154 static INLINE boolean
 155 nv50_miptree_init_ms_mode(struct nv50_miptree *mt)
 156 {
 157    switch (mt->base.base.nr_samples) {
 158    case 8:
 159       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS8;
 160       mt->ms_x = 2;
 161       mt->ms_y = 1;
 162       break;
 163    case 4:
 164       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS4;
 165       mt->ms_x = 1;
 166       mt->ms_y = 1;
 167       break;
 168    case 2:
 169       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS2;
 170       mt->ms_x = 1;
 171       break;
 172    case 1:
 173    case 0:
 174       mt->ms_mode = NV50_3D_MULTISAMPLE_MODE_MS1;
 175       break;
 176    default:
 177       NOUVEAU_ERR("invalid nr_samples: %u\n", mt->base.base.nr_samples);
 178       return FALSE;
 179    }
 180    return TRUE;
 181 }
 182
 183 boolean
 184 nv50_miptree_init_layout_linear(struct nv50_miptree *mt)
 185 {
 186    struct pipe_resource *pt = &mt->base.base;
 187    const unsigned blocksize = util_format_get_blocksize(pt->format);
 188
 189    if (util_format_is_depth_or_stencil(pt->format))
 190       return FALSE;
 191
 192    if ((pt->last_level > 0) || (pt->depth0 > 1) || (pt->array_size > 1))
 193       return FALSE;
 194    if (mt->ms_x | mt->ms_y)
 195       return FALSE;
 196
 197    mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 198
 199    mt->total_size = mt->level[0].pitch * pt->height0;
 200
 201    return TRUE;
 202 }
 203
 204 static void
 205 nv50_miptree_init_layout_tiled(struct nv50_miptree *mt)
 206 {
 207    struct pipe_resource *pt = &mt->base.base;
 208    unsigned w, h, d, l;
 209    const unsigned blocksize = util_format_get_blocksize(pt->format);
 210
 211    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 212
 213    w = pt->width0 << mt->ms_x;
 214    h = pt->height0 << mt->ms_y;
 215
 216    /* For 3D textures, a mipmap is spanned by all the layers, for array
 217     * textures and cube maps, each layer contains its own mipmaps.
 218     */
 219    d = mt->layout_3d ? pt->depth0 : 1;
 220
 221    for (l = 0; l <= pt->last_level; ++l) {
 222       struct nv50_miptree_level *lvl = &mt->level[l];
 223       unsigned tsx, tsy, tsz;
 224       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 225       unsigned nby = util_format_get_nblocksy(pt->format, h);
 226
 227       lvl->offset = mt->total_size;
 228
 229       lvl->tile_mode = nv50_tex_choose_tile_dims(nbx, nby, d);
 230
 231       tsx = NV50_TILE_SIZE_X(lvl->tile_mode); /* x is tile row pitch in bytes */
 232       tsy = NV50_TILE_SIZE_Y(lvl->tile_mode);
 233       tsz = NV50_TILE_SIZE_Z(lvl->tile_mode);
 234
 235       lvl->pitch = align(nbx * blocksize, tsx);
 236
 237       mt->total_size += lvl->pitch * align(nby, tsy) * align(d, tsz);
 238
 239       w = u_minify(w, 1);
 240       h = u_minify(h, 1);
 241       d = u_minify(d, 1);
 242    }
 243
 244    if (pt->array_size > 1) {
 245       mt->layer_stride = align(mt->total_size,
 246                                NV50_TILE_SIZE(mt->level[0].tile_mode));
 247       mt->total_size = mt->layer_stride * pt->array_size;
 248    }
 249 }
 250
 251 struct pipe_resource *
 252 nv50_miptree_create(struct pipe_screen *pscreen,
 253                     const struct pipe_resource *templ)
 254 {
 255    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 256    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
 257    struct pipe_resource *pt = &mt->base.base;
 258    int ret;
 259    union nouveau_bo_config bo_config;
 260    uint32_t bo_flags;
 261
 262    if (!mt)
 263       return NULL;
 264
 265    mt->base.vtbl = &nv50_miptree_vtbl;
 266    *pt = *templ;
 267    pipe_reference_init(&pt->reference, 1);
 268    pt->screen = pscreen;
 269
 270    bo_config.nv50.memtype = nv50_mt_choose_storage_type(mt, TRUE);
 271
 272    if (!nv50_miptree_init_ms_mode(mt)) {
 273       FREE(mt);
 274       return NULL;
 275    }
 276
 277    if (bo_config.nv50.memtype != 0) {
 278       nv50_miptree_init_layout_tiled(mt);
 279    } else
 280    if (!nv50_miptree_init_layout_linear(mt)) {
 281       FREE(mt);
 282       return NULL;
 283    }
 284    bo_config.nv50.tile_mode = mt->level[0].tile_mode;
 285
 286    bo_flags = NOUVEAU_BO_VRAM | NOUVEAU_BO_NOSNOOP;
 287    if (mt->base.base.bind & (PIPE_BIND_CURSOR | PIPE_BIND_DISPLAY_TARGET))
 288       bo_flags |= NOUVEAU_BO_CONTIG;
 289
 290    ret = nouveau_bo_new(dev, bo_flags, 4096, mt->total_size, &bo_config,
 291                         &mt->base.bo);
 292    if (ret) {
 293       FREE(mt);
 294       return NULL;
 295    }
 296    mt->base.domain = NOUVEAU_BO_VRAM;
 297    mt->base.address = mt->base.bo->offset;
 298
 299    return pt;
 300 }
 301
 302 struct pipe_resource *
 303 nv50_miptree_from_handle(struct pipe_screen *pscreen,
 304                          const struct pipe_resource *templ,
 305                          struct winsys_handle *whandle)
 306 {
 307    struct nv50_miptree *mt;
 308    unsigned stride;
 309
 310    /* only supports 2D, non-mipmapped textures for the moment */
 311    if ((templ->target != PIPE_TEXTURE_2D &&
 312         templ->target != PIPE_TEXTURE_RECT) ||
 313        templ->last_level != 0 ||
 314        templ->depth0 != 1 ||
 315        templ->array_size > 1)
 316       return NULL;
 317
 318    mt = CALLOC_STRUCT(nv50_miptree);
 319    if (!mt)
 320       return NULL;
 321
 322    mt->base.bo = nouveau_screen_bo_from_handle(pscreen, whandle, &stride);
 323    if (mt->base.bo == NULL) {
 324       FREE(mt);
 325       return NULL;
 326    }
 327    mt->base.domain = NOUVEAU_BO_VRAM;
 328    mt->base.address = mt->base.bo->offset;
 329
 330    mt->base.base = *templ;
 331    mt->base.vtbl = &nv50_miptree_vtbl;
 332    pipe_reference_init(&mt->base.base.reference, 1);
 333    mt->base.base.screen = pscreen;
 334    mt->level[0].pitch = stride;
 335    mt->level[0].offset = 0;
 336    mt->level[0].tile_mode = mt->base.bo->config.nv50.tile_mode;
 337
 338    /* no need to adjust bo reference count */
 339    return &mt->base.base;
 340 }
 341
 342
 343 /* Offset of zslice @z from start of level @l. */
 344 INLINE unsigned
 345 nv50_mt_zslice_offset(const struct nv50_miptree *mt, unsigned l, unsigned z)
 346 {
 347    const struct pipe_resource *pt = &mt->base.base;
 348
 349    unsigned tds = NV50_TILE_SHIFT_Z(mt->level[l].tile_mode);
 350    unsigned ths = NV50_TILE_SHIFT_Y(mt->level[l].tile_mode);
 351
 352    unsigned nby = util_format_get_nblocksy(pt->format,
 353                                            u_minify(pt->height0, l));
 354
 355    /* to next 2D tile slice within a 3D tile */
 356    unsigned stride_2d = NV50_TILE_SIZE_2D(mt->level[l].tile_mode);
 357
 358    /* to slice in the next (in z direction) 3D tile */
 359    unsigned stride_3d = (align(nby, (1 << ths)) * mt->level[l].pitch) << tds;
 360
 361    return (z & ((1 << tds) - 1)) * stride_2d + (z >> tds) * stride_3d;
 362 }
 363
 364 /* Surface functions.
 365  */
 366
 367 struct nv50_surface *
 368 nv50_surface_from_miptree(struct nv50_miptree *mt,
 369                           const struct pipe_surface *templ)
 370 {
 371    struct pipe_surface *ps;
 372    struct nv50_surface *ns = CALLOC_STRUCT(nv50_surface);
 373    if (!ns)
 374       return NULL;
 375    ps = &ns->base;
 376
 377    pipe_reference_init(&ps->reference, 1);
 378    pipe_resource_reference(&ps->texture, &mt->base.base);
 379
 380    ps->format = templ->format;
 381    ps->usage = templ->usage;
 382    ps->u.tex.level = templ->u.tex.level;
 383    ps->u.tex.first_layer = templ->u.tex.first_layer;
 384    ps->u.tex.last_layer = templ->u.tex.last_layer;
 385
 386    ns->width = u_minify(mt->base.base.width0, ps->u.tex.level);
 387    ns->height = u_minify(mt->base.base.height0, ps->u.tex.level);
 388    ns->depth = ps->u.tex.last_layer - ps->u.tex.first_layer + 1;
 389    ns->offset = mt->level[templ->u.tex.level].offset;
 390
 391    /* comment says there are going to be removed, but they're used by the st */
 392    ps->width = ns->width;
 393    ps->height = ns->height;
 394
 395    ns->width <<= mt->ms_x;
 396    ns->height <<= mt->ms_y;
 397
 398    return ns;
 399 }
 400
 401 struct pipe_surface *
 402 nv50_miptree_surface_new(struct pipe_context *pipe,
 403                          struct pipe_resource *pt,
 404                          const struct pipe_surface *templ)
 405 {
 406    struct nv50_miptree *mt = nv50_miptree(pt);
 407    struct nv50_surface *ns = nv50_surface_from_miptree(mt, templ);
 408    if (!ns)
 409       return NULL;
 410    ns->base.context = pipe;
 411
 412    if (ns->base.u.tex.first_layer) {
 413       const unsigned l = ns->base.u.tex.level;
 414       const unsigned z = ns->base.u.tex.first_layer;
 415
 416       if (mt->layout_3d) {
 417          ns->offset += nv50_mt_zslice_offset(mt, l, z);
 418
 419          /* TODO: switch to depth 1 tiles; but actually this shouldn't happen */
 420          if (ns->depth > 1 &&
 421              (z & (NV50_TILE_SIZE_Z(mt->level[l].tile_mode) - 1)))
 422             NOUVEAU_ERR("Creating unsupported 3D surface !\n");
 423       } else {
 424          ns->offset += mt->layer_stride * z;
 425       }
 426    }
 427
 428    return &ns->base;
 429 }