src/gallium/drivers/nouveau/nvc0/nvc0_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 "nvc0/nvc0_context.h"
  29 #include "nvc0/nvc0_resource.h"
  30
  31 static uint32_t
  32 nvc0_tex_choose_tile_dims(unsigned nx, unsigned ny, unsigned nz)
  33 {
  34    return nv50_tex_choose_tile_dims_helper(nx, ny, nz);
  35 }
  36
  37 static uint32_t
  38 nvc0_mt_choose_storage_type(struct nv50_miptree *mt, boolean compressed)
  39 {
  40    const unsigned ms = util_logbase2(mt->base.base.nr_samples);
  41
  42    uint32_t tile_flags;
  43
  44    if (unlikely(mt->base.base.bind & PIPE_BIND_CURSOR))
  45       return 0;
  46    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
  47       return 0;
  48
  49    switch (mt->base.base.format) {
  50    case PIPE_FORMAT_Z16_UNORM:
  51       if (compressed)
  52          tile_flags = 0x02 + ms;
  53       else
  54          tile_flags = 0x01;
  55       break;
  56    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
  57       if (compressed)
  58          tile_flags = 0x51 + ms;
  59       else
  60          tile_flags = 0x46;
  61       break;
  62    case PIPE_FORMAT_Z24X8_UNORM:
  63    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
  64       if (compressed)
  65          tile_flags = 0x17 + ms;
  66       else
  67          tile_flags = 0x11;
  68       break;
  69    case PIPE_FORMAT_Z32_FLOAT:
  70       if (compressed)
  71          tile_flags = 0x86 + ms;
  72       else
  73          tile_flags = 0x7b;
  74       break;
  75    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
  76       if (compressed)
  77          tile_flags = 0xce + ms;
  78       else
  79          tile_flags = 0xc3;
  80       break;
  81    default:
  82       switch (util_format_get_blocksizebits(mt->base.base.format)) {
  83       case 128:
  84          if (compressed)
  85             tile_flags = 0xf4 + ms * 2;
  86          else
  87             tile_flags = 0xfe;
  88          break;
  89       case 64:
  90          if (compressed) {
  91             switch (ms) {
  92             case 0: tile_flags = 0xe6; break;
  93             case 1: tile_flags = 0xeb; break;
  94             case 2: tile_flags = 0xed; break;
  95             case 3: tile_flags = 0xf2; break;
  96             default:
  97                return 0;
  98             }
  99          } else {
 100             tile_flags = 0xfe;
 101          }
 102          break;
 103       case 32:
 104          if (compressed && ms) {
 105             switch (ms) {
 106                /* This one makes things blurry:
 107             case 0: tile_flags = 0xdb; break;
 108                */
 109             case 1: tile_flags = 0xdd; break;
 110             case 2: tile_flags = 0xdf; break;
 111             case 3: tile_flags = 0xe4; break;
 112             default:
 113                return 0;
 114             }
 115          } else {
 116             tile_flags = 0xfe;
 117          }
 118          break;
 119       case 16:
 120       case 8:
 121          tile_flags = 0xfe;
 122          break;
 123       default:
 124          return 0;
 125       }
 126       break;
 127    }
 128
 129    return tile_flags;
 130 }
 131
 132 static INLINE boolean
 133 nvc0_miptree_init_ms_mode(struct nv50_miptree *mt)
 134 {
 135    switch (mt->base.base.nr_samples) {
 136    case 8:
 137       mt->ms_mode = NVC0_3D_MULTISAMPLE_MODE_MS8;
 138       mt->ms_x = 2;
 139       mt->ms_y = 1;
 140       break;
 141    case 4:
 142       mt->ms_mode = NVC0_3D_MULTISAMPLE_MODE_MS4;
 143       mt->ms_x = 1;
 144       mt->ms_y = 1;
 145       break;
 146    case 2:
 147       mt->ms_mode = NVC0_3D_MULTISAMPLE_MODE_MS2;
 148       mt->ms_x = 1;
 149       break;
 150    case 1:
 151    case 0:
 152       mt->ms_mode = NVC0_3D_MULTISAMPLE_MODE_MS1;
 153       break;
 154    default:
 155       NOUVEAU_ERR("invalid nr_samples: %u\n", mt->base.base.nr_samples);
 156       return FALSE;
 157    }
 158    return TRUE;
 159 }
 160
 161 static void
 162 nvc0_miptree_init_layout_video(struct nv50_miptree *mt)
 163 {
 164    const struct pipe_resource *pt = &mt->base.base;
 165    const unsigned blocksize = util_format_get_blocksize(pt->format);
 166
 167    assert(pt->last_level == 0);
 168    assert(mt->ms_x == 0 && mt->ms_y == 0);
 169    assert(!util_format_is_compressed(pt->format));
 170
 171    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 172
 173    mt->level[0].tile_mode = 0x10;
 174    mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 175    mt->total_size = align(pt->height0, 16) * mt->level[0].pitch * (mt->layout_3d ? pt->depth0 : 1);
 176
 177    if (pt->array_size > 1) {
 178       mt->layer_stride = align(mt->total_size, NVC0_TILE_SIZE(0x10));
 179       mt->total_size = mt->layer_stride * pt->array_size;
 180    }
 181 }
 182
 183 static void
 184 nvc0_miptree_init_layout_tiled(struct nv50_miptree *mt)
 185 {
 186    struct pipe_resource *pt = &mt->base.base;
 187    unsigned w, h, d, l;
 188    const unsigned blocksize = util_format_get_blocksize(pt->format);
 189
 190    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 191
 192    w = pt->width0 << mt->ms_x;
 193    h = pt->height0 << mt->ms_y;
 194
 195    /* For 3D textures, a mipmap is spanned by all the layers, for array
 196     * textures and cube maps, each layer contains its own mipmaps.
 197     */
 198    d = mt->layout_3d ? pt->depth0 : 1;
 199
 200    assert(!mt->ms_mode || !pt->last_level);
 201
 202    for (l = 0; l <= pt->last_level; ++l) {
 203       struct nv50_miptree_level *lvl = &mt->level[l];
 204       unsigned tsx, tsy, tsz;
 205       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 206       unsigned nby = util_format_get_nblocksy(pt->format, h);
 207
 208       lvl->offset = mt->total_size;
 209
 210       lvl->tile_mode = nvc0_tex_choose_tile_dims(nbx, nby, d);
 211
 212       tsx = NVC0_TILE_SIZE_X(lvl->tile_mode); /* x is tile row pitch in bytes */
 213       tsy = NVC0_TILE_SIZE_Y(lvl->tile_mode);
 214       tsz = NVC0_TILE_SIZE_Z(lvl->tile_mode);
 215
 216       lvl->pitch = align(nbx * blocksize, tsx);
 217
 218       mt->total_size += lvl->pitch * align(nby, tsy) * align(d, tsz);
 219
 220       w = u_minify(w, 1);
 221       h = u_minify(h, 1);
 222       d = u_minify(d, 1);
 223    }
 224
 225    if (pt->array_size > 1) {
 226       mt->layer_stride = align(mt->total_size,
 227                                NVC0_TILE_SIZE(mt->level[0].tile_mode));
 228       mt->total_size = mt->layer_stride * pt->array_size;
 229    }
 230 }
 231
 232 const struct u_resource_vtbl nvc0_miptree_vtbl =
 233 {
 234    nv50_miptree_get_handle,         /* get_handle */
 235    nv50_miptree_destroy,            /* resource_destroy */
 236    nvc0_miptree_transfer_map,       /* transfer_map */
 237    u_default_transfer_flush_region, /* transfer_flush_region */
 238    nvc0_miptree_transfer_unmap,     /* transfer_unmap */
 239    u_default_transfer_inline_write  /* transfer_inline_write */
 240 };
 241
 242 struct pipe_resource *
 243 nvc0_miptree_create(struct pipe_screen *pscreen,
 244                     const struct pipe_resource *templ)
 245 {
 246    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 247    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
 248    struct pipe_resource *pt = &mt->base.base;
 249    boolean compressed = dev->drm_version >= 0x01000101;
 250    int ret;
 251    union nouveau_bo_config bo_config;
 252    uint32_t bo_flags;
 253
 254    if (!mt)
 255       return NULL;
 256
 257    mt->base.vtbl = &nvc0_miptree_vtbl;
 258    *pt = *templ;
 259    pipe_reference_init(&pt->reference, 1);
 260    pt->screen = pscreen;
 261
 262    if (pt->usage == PIPE_USAGE_STAGING) {
 263       switch (pt->target) {
 264       case PIPE_TEXTURE_2D:
 265       case PIPE_TEXTURE_RECT:
 266          if (pt->last_level == 0 &&
 267              !util_format_is_depth_or_stencil(pt->format) &&
 268              pt->nr_samples <= 1)
 269             pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
 270          break;
 271       default:
 272          break;
 273       }
 274    }
 275
 276    if (pt->bind & PIPE_BIND_LINEAR)
 277       pt->flags |= NOUVEAU_RESOURCE_FLAG_LINEAR;
 278
 279    bo_config.nvc0.memtype = nvc0_mt_choose_storage_type(mt, compressed);
 280
 281    if (!nvc0_miptree_init_ms_mode(mt)) {
 282       FREE(mt);
 283       return NULL;
 284    }
 285
 286    if (unlikely(pt->flags & NVC0_RESOURCE_FLAG_VIDEO)) {
 287       nvc0_miptree_init_layout_video(mt);
 288    } else
 289    if (likely(bo_config.nvc0.memtype)) {
 290       nvc0_miptree_init_layout_tiled(mt);
 291    } else
 292    if (!nv50_miptree_init_layout_linear(mt, 128)) {
 293       FREE(mt);
 294       return NULL;
 295    }
 296    bo_config.nvc0.tile_mode = mt->level[0].tile_mode;
 297
 298    if (!bo_config.nvc0.memtype && (pt->usage == PIPE_USAGE_STAGING || pt->bind & PIPE_BIND_SHARED))
 299       mt->base.domain = NOUVEAU_BO_GART;
 300    else
 301       mt->base.domain = NOUVEAU_BO_VRAM;
 302
 303    bo_flags = mt->base.domain | NOUVEAU_BO_NOSNOOP;
 304
 305    if (mt->base.base.bind & (PIPE_BIND_CURSOR | PIPE_BIND_DISPLAY_TARGET))
 306       bo_flags |= NOUVEAU_BO_CONTIG;
 307
 308    ret = nouveau_bo_new(dev, bo_flags, 4096, mt->total_size, &bo_config,
 309                         &mt->base.bo);
 310    if (ret) {
 311       FREE(mt);
 312       return NULL;
 313    }
 314    mt->base.address = mt->base.bo->offset;
 315
 316    NOUVEAU_DRV_STAT(nouveau_screen(pscreen), tex_obj_current_count, 1);
 317    NOUVEAU_DRV_STAT(nouveau_screen(pscreen), tex_obj_current_bytes,
 318                     mt->total_size);
 319
 320    return pt;
 321 }
 322
 323 /* Offset of zslice @z from start of level @l. */
 324 INLINE unsigned
 325 nvc0_mt_zslice_offset(const struct nv50_miptree *mt, unsigned l, unsigned z)
 326 {
 327    const struct pipe_resource *pt = &mt->base.base;
 328
 329    unsigned tds = NVC0_TILE_SHIFT_Z(mt->level[l].tile_mode);
 330    unsigned ths = NVC0_TILE_SHIFT_Y(mt->level[l].tile_mode);
 331
 332    unsigned nby = util_format_get_nblocksy(pt->format,
 333                                            u_minify(pt->height0, l));
 334
 335    /* to next 2D tile slice within a 3D tile */
 336    unsigned stride_2d = NVC0_TILE_SIZE_2D(mt->level[l].tile_mode);
 337
 338    /* to slice in the next (in z direction) 3D tile */
 339    unsigned stride_3d = (align(nby, (1 << ths)) * mt->level[l].pitch) << tds;
 340
 341    return (z & (1 << (tds - 1))) * stride_2d + (z >> tds) * stride_3d;
 342 }
 343
 344 /* Surface functions.
 345  */
 346
 347 struct pipe_surface *
 348 nvc0_miptree_surface_new(struct pipe_context *pipe,
 349                          struct pipe_resource *pt,
 350                          const struct pipe_surface *templ)
 351 {
 352    struct nv50_surface *ns = nv50_surface_from_miptree(nv50_miptree(pt), templ);
 353    if (!ns)
 354       return NULL;
 355    ns->base.context = pipe;
 356    return &ns->base;
 357 }