src/gallium/drivers/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 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 "nvc0_context.h"
  29 #include "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    compressed = FALSE; /* not yet supported */
  45
  46    if (unlikely(mt->base.base.bind & PIPE_BIND_CURSOR))
  47       return 0;
  48    if (unlikely(mt->base.base.flags & NOUVEAU_RESOURCE_FLAG_LINEAR))
  49       return 0;
  50
  51    switch (mt->base.base.format) {
  52    case PIPE_FORMAT_Z16_UNORM:
  53       if (compressed)
  54          tile_flags = 0x02 + ms;
  55       else
  56          tile_flags = 0x01;
  57       break;
  58    case PIPE_FORMAT_S8_UINT_Z24_UNORM:
  59       if (compressed)
  60          tile_flags = 0x51 + ms;
  61       else
  62          tile_flags = 0x46;
  63       break;
  64    case PIPE_FORMAT_Z24X8_UNORM:
  65    case PIPE_FORMAT_Z24_UNORM_S8_UINT:
  66       if (compressed)
  67          tile_flags = 0x17 + ms;
  68       else
  69          tile_flags = 0x11;
  70       break;
  71    case PIPE_FORMAT_Z32_FLOAT:
  72       if (compressed)
  73          tile_flags = 0x86 + ms;
  74       else
  75          tile_flags = 0x7b;
  76       break;
  77    case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
  78       if (compressed)
  79          tile_flags = 0xce + ms;
  80       else
  81          tile_flags = 0xc3;
  82       break;
  83    default:
  84       switch (util_format_get_blocksizebits(mt->base.base.format)) {
  85       case 128:
  86          if (compressed)
  87             tile_flags = 0xf4 + ms;
  88          else
  89             tile_flags = 0xfe;
  90          break;
  91       case 64:
  92          if (compressed) {
  93             switch (ms) {
  94             case 0: tile_flags = 0xe6; break;
  95             case 1: tile_flags = 0xeb; break;
  96             case 2: tile_flags = 0xed; break;
  97             case 3: tile_flags = 0xf2; break;
  98             default:
  99                return 0;
 100             }
 101          } else {
 102             tile_flags = 0xfe;
 103          }
 104          break;
 105       case 32:
 106          if (compressed) {
 107             switch (ms) {
 108             case 0: tile_flags = 0xdb; break;
 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 boolean
 162 nv50_miptree_init_layout_linear(struct nv50_miptree *);
 163
 164 static void
 165 nvc0_miptree_init_layout_video(struct nv50_miptree *mt)
 166 {
 167    const struct pipe_resource *pt = &mt->base.base;
 168    const unsigned blocksize = util_format_get_blocksize(pt->format);
 169
 170    assert(pt->last_level == 0);
 171    assert(mt->ms_x == 0 && mt->ms_y == 0);
 172    assert(!util_format_is_compressed(pt->format));
 173
 174    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 175
 176    mt->level[0].tile_mode = 0x10;
 177    mt->level[0].pitch = align(pt->width0 * blocksize, 64);
 178    mt->total_size = align(pt->height0, 16) * mt->level[0].pitch * (mt->layout_3d ? pt->depth0 : 1);
 179
 180    if (pt->array_size > 1) {
 181       mt->layer_stride = align(mt->total_size, NVC0_TILE_SIZE(0x10));
 182       mt->total_size = mt->layer_stride * pt->array_size;
 183    }
 184 }
 185
 186 static void
 187 nvc0_miptree_init_layout_tiled(struct nv50_miptree *mt)
 188 {
 189    struct pipe_resource *pt = &mt->base.base;
 190    unsigned w, h, d, l;
 191    const unsigned blocksize = util_format_get_blocksize(pt->format);
 192
 193    mt->layout_3d = pt->target == PIPE_TEXTURE_3D;
 194
 195    w = pt->width0 << mt->ms_x;
 196    h = pt->height0 << mt->ms_y;
 197
 198    /* For 3D textures, a mipmap is spanned by all the layers, for array
 199     * textures and cube maps, each layer contains its own mipmaps.
 200     */
 201    d = mt->layout_3d ? pt->depth0 : 1;
 202
 203    for (l = 0; l <= pt->last_level; ++l) {
 204       struct nv50_miptree_level *lvl = &mt->level[l];
 205       unsigned tsx, tsy, tsz;
 206       unsigned nbx = util_format_get_nblocksx(pt->format, w);
 207       unsigned nby = util_format_get_nblocksy(pt->format, h);
 208
 209       lvl->offset = mt->total_size;
 210
 211       lvl->tile_mode = nvc0_tex_choose_tile_dims(nbx, nby, d);
 212
 213       tsx = NVC0_TILE_SIZE_X(lvl->tile_mode); /* x is tile row pitch in bytes */
 214       tsy = NVC0_TILE_SIZE_Y(lvl->tile_mode);
 215       tsz = NVC0_TILE_SIZE_Z(lvl->tile_mode);
 216
 217       lvl->pitch = align(nbx * blocksize, tsx);
 218
 219       mt->total_size += lvl->pitch * align(nby, tsy) * align(d, tsz);
 220
 221       w = u_minify(w, 1);
 222       h = u_minify(h, 1);
 223       d = u_minify(d, 1);
 224    }
 225
 226    if (pt->array_size > 1) {
 227       mt->layer_stride = align(mt->total_size,
 228                                NVC0_TILE_SIZE(mt->level[0].tile_mode));
 229       mt->total_size = mt->layer_stride * pt->array_size;
 230    }
 231 }
 232
 233 const struct u_resource_vtbl nvc0_miptree_vtbl =
 234 {
 235    nv50_miptree_get_handle,         /* get_handle */
 236    nv50_miptree_destroy,            /* resource_destroy */
 237    nvc0_miptree_transfer_map,       /* transfer_map */
 238    u_default_transfer_flush_region, /* transfer_flush_region */
 239    nvc0_miptree_transfer_unmap,     /* transfer_unmap */
 240    u_default_transfer_inline_write  /* transfer_inline_write */
 241 };
 242
 243 struct pipe_resource *
 244 nvc0_miptree_create(struct pipe_screen *pscreen,
 245                     const struct pipe_resource *templ)
 246 {
 247    struct nouveau_device *dev = nouveau_screen(pscreen)->device;
 248    struct nv50_miptree *mt = CALLOC_STRUCT(nv50_miptree);
 249    struct pipe_resource *pt = &mt->base.base;
 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    bo_config.nvc0.memtype = nvc0_mt_choose_storage_type(mt, TRUE);
 263
 264    if (!nvc0_miptree_init_ms_mode(mt)) {
 265       FREE(mt);
 266       return NULL;
 267    }
 268
 269    if (unlikely(pt->flags & NVC0_RESOURCE_FLAG_VIDEO)) {
 270       nvc0_miptree_init_layout_video(mt);
 271    } else
 272    if (likely(bo_config.nvc0.memtype)) {
 273       nvc0_miptree_init_layout_tiled(mt);
 274    } else
 275    if (!nv50_miptree_init_layout_linear(mt)) {
 276       FREE(mt);
 277       return NULL;
 278    }
 279    bo_config.nvc0.tile_mode = mt->level[0].tile_mode;
 280
 281    mt->base.domain = NOUVEAU_BO_VRAM;
 282
 283    bo_flags = mt->base.domain | NOUVEAU_BO_NOSNOOP;
 284
 285    if (mt->base.base.bind & (PIPE_BIND_CURSOR | PIPE_BIND_DISPLAY_TARGET))
 286       bo_flags |= NOUVEAU_BO_CONTIG;
 287
 288    ret = nouveau_bo_new(dev, bo_flags, 4096, mt->total_size, &bo_config,
 289                         &mt->base.bo);
 290    if (ret) {
 291       FREE(mt);
 292       return NULL;
 293    }
 294    mt->base.address = mt->base.bo->offset;
 295
 296    return pt;
 297 }
 298
 299 /* Offset of zslice @z from start of level @l. */
 300 INLINE unsigned
 301 nvc0_mt_zslice_offset(const struct nv50_miptree *mt, unsigned l, unsigned z)
 302 {
 303    const struct pipe_resource *pt = &mt->base.base;
 304
 305    unsigned tds = NVC0_TILE_SHIFT_Z(mt->level[l].tile_mode);
 306    unsigned ths = NVC0_TILE_SHIFT_Y(mt->level[l].tile_mode);
 307
 308    unsigned nby = util_format_get_nblocksy(pt->format,
 309                                            u_minify(pt->height0, l));
 310
 311    /* to next 2D tile slice within a 3D tile */
 312    unsigned stride_2d = NVC0_TILE_SIZE_2D(mt->level[l].tile_mode);
 313
 314    /* to slice in the next (in z direction) 3D tile */
 315    unsigned stride_3d = (align(nby, (1 << ths)) * mt->level[l].pitch) << tds;
 316
 317    return (z & (1 << (tds - 1))) * stride_2d + (z >> tds) * stride_3d;
 318 }
 319
 320 /* Surface functions.
 321  */
 322
 323 struct pipe_surface *
 324 nvc0_miptree_surface_new(struct pipe_context *pipe,
 325                          struct pipe_resource *pt,
 326                          const struct pipe_surface *templ)
 327 {
 328    struct nv50_surface *ns = nv50_surface_from_miptree(nv50_miptree(pt), templ);
 329    if (!ns)
 330       return NULL;
 331    ns->base.context = pipe;
 332    return &ns->base;
 333 }