src/gallium/drivers/nv50/nv50_state_validate.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 "util/u_format.h"
  24
  25 #include "nv50_context.h"
  26 #include "nouveau/nouveau_stateobj.h"
  27
  28 #define NV50_CBUF_FORMAT_CASE(n) \
  29         case PIPE_FORMAT_##n: so_data(so, NV50TCL_RT_FORMAT_##n); break
  30
  31 #define NV50_ZETA_FORMAT_CASE(n) \
  32         case PIPE_FORMAT_##n: so_data(so, NV50TCL_ZETA_FORMAT_##n); break
  33
  34 static void
  35 nv50_state_validate_fb(struct nv50_context *nv50)
  36 {
  37         struct nouveau_grobj *tesla = nv50->screen->tesla;
  38         struct nouveau_stateobj *so = so_new(32, 79, 18);
  39         struct pipe_framebuffer_state *fb = &nv50->framebuffer;
  40         unsigned i, w, h, gw = 0;
  41
  42         /* Set nr of active RTs and select RT for each colour output.
  43          * FP result 0 always goes to RT[0], bits 4 - 6 are ignored.
  44          * Ambiguous assignment results in no rendering (no DATA_ERROR).
  45          */
  46         so_method(so, tesla, NV50TCL_RT_CONTROL, 1);
  47         so_data  (so, fb->nr_cbufs |
  48                   (0 <<  4) | (1 <<  7) | (2 << 10) | (3 << 13) |
  49                   (4 << 16) | (5 << 19) | (6 << 22) | (7 << 25));
  50
  51         for (i = 0; i < fb->nr_cbufs; i++) {
  52                 struct pipe_texture *pt = fb->cbufs[i]->texture;
  53                 struct nouveau_bo *bo = nv50_miptree(pt)->base.bo;
  54
  55                 if (!gw) {
  56                         w = fb->cbufs[i]->width;
  57                         h = fb->cbufs[i]->height;
  58                         gw = 1;
  59                 } else {
  60                         assert(w == fb->cbufs[i]->width);
  61                         assert(h == fb->cbufs[i]->height);
  62                 }
  63
  64                 so_method(so, tesla, NV50TCL_RT_HORIZ(i), 2);
  65                 so_data  (so, fb->cbufs[i]->width);
  66                 so_data  (so, fb->cbufs[i]->height);
  67
  68                 so_method(so, tesla, NV50TCL_RT_ADDRESS_HIGH(i), 5);
  69                 so_reloc (so, bo, fb->cbufs[i]->offset, NOUVEAU_BO_VRAM |
  70                               NOUVEAU_BO_HIGH | NOUVEAU_BO_RDWR, 0, 0);
  71                 so_reloc (so, bo, fb->cbufs[i]->offset, NOUVEAU_BO_VRAM |
  72                               NOUVEAU_BO_LOW | NOUVEAU_BO_RDWR, 0, 0);
  73                 switch (fb->cbufs[i]->format) {
  74                 NV50_CBUF_FORMAT_CASE(A8R8G8B8_UNORM);
  75                 NV50_CBUF_FORMAT_CASE(X8R8G8B8_UNORM);
  76                 NV50_CBUF_FORMAT_CASE(R5G6B5_UNORM);
  77                 NV50_CBUF_FORMAT_CASE(R16G16B16A16_SNORM);
  78                 NV50_CBUF_FORMAT_CASE(R16G16B16A16_UNORM);
  79                 NV50_CBUF_FORMAT_CASE(R32G32B32A32_FLOAT);
  80                 NV50_CBUF_FORMAT_CASE(R16G16_SNORM);
  81                 NV50_CBUF_FORMAT_CASE(R16G16_UNORM);
  82                 default:
  83                         NOUVEAU_ERR("AIIII unknown format %s\n",
  84                                     util_format_name(fb->cbufs[i]->format));
  85                         so_data(so, NV50TCL_RT_FORMAT_X8R8G8B8_UNORM);
  86                         break;
  87                 }
  88                 so_data(so, nv50_miptree(pt)->
  89                                 level[fb->cbufs[i]->level].tile_mode << 4);
  90                 so_data(so, 0x00000000);
  91
  92                 so_method(so, tesla, NV50TCL_RT_ARRAY_MODE, 1);
  93                 so_data  (so, 1);
  94         }
  95
  96         if (fb->zsbuf) {
  97                 struct pipe_texture *pt = fb->zsbuf->texture;
  98                 struct nouveau_bo *bo = nv50_miptree(pt)->base.bo;
  99
 100                 if (!gw) {
 101                         w = fb->zsbuf->width;
 102                         h = fb->zsbuf->height;
 103                         gw = 1;
 104                 } else {
 105                         assert(w == fb->zsbuf->width);
 106                         assert(h == fb->zsbuf->height);
 107                 }
 108
 109                 so_method(so, tesla, NV50TCL_ZETA_ADDRESS_HIGH, 5);
 110                 so_reloc (so, bo, fb->zsbuf->offset, NOUVEAU_BO_VRAM |
 111                               NOUVEAU_BO_HIGH | NOUVEAU_BO_RDWR, 0, 0);
 112                 so_reloc (so, bo, fb->zsbuf->offset, NOUVEAU_BO_VRAM |
 113                               NOUVEAU_BO_LOW | NOUVEAU_BO_RDWR, 0, 0);
 114                 switch (fb->zsbuf->format) {
 115                 NV50_ZETA_FORMAT_CASE(S8Z24_UNORM);
 116                 NV50_ZETA_FORMAT_CASE(X8Z24_UNORM);
 117                 NV50_ZETA_FORMAT_CASE(Z24S8_UNORM);
 118                 NV50_ZETA_FORMAT_CASE(Z32_FLOAT);
 119                 default:
 120                         NOUVEAU_ERR("AIIII unknown format %s\n",
 121                                     util_format_name(fb->zsbuf->format));
 122                         so_data(so, NV50TCL_ZETA_FORMAT_S8Z24_UNORM);
 123                         break;
 124                 }
 125                 so_data(so, nv50_miptree(pt)->
 126                                 level[fb->zsbuf->level].tile_mode << 4);
 127                 so_data(so, 0x00000000);
 128
 129                 so_method(so, tesla, NV50TCL_ZETA_ENABLE, 1);
 130                 so_data  (so, 1);
 131                 so_method(so, tesla, NV50TCL_ZETA_HORIZ, 3);
 132                 so_data  (so, fb->zsbuf->width);
 133                 so_data  (so, fb->zsbuf->height);
 134                 so_data  (so, 0x00010001);
 135         } else {
 136                 so_method(so, tesla, NV50TCL_ZETA_ENABLE, 1);
 137                 so_data  (so, 0);
 138         }
 139
 140         so_method(so, tesla, NV50TCL_VIEWPORT_HORIZ(0), 2);
 141         so_data  (so, w << 16);
 142         so_data  (so, h << 16);
 143         /* set window lower left corner */
 144         so_method(so, tesla, NV50TCL_WINDOW_OFFSET_X, 2);
 145         so_data  (so, 0);
 146         so_data  (so, 0);
 147         /* set screen scissor rectangle */
 148         so_method(so, tesla, NV50TCL_SCREEN_SCISSOR_HORIZ, 2);
 149         so_data  (so, w << 16);
 150         so_data  (so, h << 16);
 151
 152         /* we set scissors to framebuffer size when they're 'turned off' */
 153         nv50->dirty |= NV50_NEW_SCISSOR;
 154         so_ref(NULL, &nv50->state.scissor);
 155
 156         so_ref(so, &nv50->state.fb);
 157         so_ref(NULL, &so);
 158 }
 159
 160 static void
 161 nv50_validate_samplers(struct nv50_context *nv50, struct nouveau_stateobj *so,
 162                        unsigned p)
 163 {
 164         struct nouveau_grobj *eng2d = nv50->screen->eng2d;
 165         unsigned i, j, dw = nv50->sampler_nr[p] * 8;
 166
 167         if (!dw)
 168                 return;
 169         nv50_so_init_sifc(nv50, so, nv50->screen->tsc, NOUVEAU_BO_VRAM,
 170                           p * (32 * 8 * 4), dw * 4);
 171
 172         so_method(so, eng2d, NV50_2D_SIFC_DATA | (2 << 29), dw);
 173
 174         for (i = 0; i < nv50->sampler_nr[p]; ++i) {
 175                 if (nv50->sampler[p][i])
 176                         so_datap(so, nv50->sampler[p][i]->tsc, 8);
 177                 else {
 178                         for (j = 0; j < 8; ++j) /* you get punished */
 179                                 so_data(so, 0); /* ... for leaving holes */
 180                 }
 181         }
 182 }
 183
 184 static void
 185 nv50_state_emit(struct nv50_context *nv50)
 186 {
 187         struct nv50_screen *screen = nv50->screen;
 188         struct nouveau_channel *chan = screen->base.channel;
 189
 190         /* XXX: this is racy for multiple contexts active on separate
 191          * threads.
 192          */
 193         if (screen->cur_ctx != nv50) {
 194                 if (nv50->state.fb)
 195                         nv50->state.dirty |= NV50_NEW_FRAMEBUFFER;
 196                 if (nv50->state.blend)
 197                         nv50->state.dirty |= NV50_NEW_BLEND;
 198                 if (nv50->state.zsa)
 199                         nv50->state.dirty |= NV50_NEW_ZSA;
 200                 if (nv50->state.vertprog)
 201                         nv50->state.dirty |= NV50_NEW_VERTPROG;
 202                 if (nv50->state.fragprog)
 203                         nv50->state.dirty |= NV50_NEW_FRAGPROG;
 204                 if (nv50->state.geomprog)
 205                         nv50->state.dirty |= NV50_NEW_GEOMPROG;
 206                 if (nv50->state.rast)
 207                         nv50->state.dirty |= NV50_NEW_RASTERIZER;
 208                 if (nv50->state.blend_colour)
 209                         nv50->state.dirty |= NV50_NEW_BLEND_COLOUR;
 210                 if (nv50->state.stencil_ref)
 211                         nv50->state.dirty |= NV50_NEW_STENCIL_REF;
 212                 if (nv50->state.stipple)
 213                         nv50->state.dirty |= NV50_NEW_STIPPLE;
 214                 if (nv50->state.scissor)
 215                         nv50->state.dirty |= NV50_NEW_SCISSOR;
 216                 if (nv50->state.viewport)
 217                         nv50->state.dirty |= NV50_NEW_VIEWPORT;
 218                 if (nv50->state.tsc_upload)
 219                         nv50->state.dirty |= NV50_NEW_SAMPLER;
 220                 if (nv50->state.tic_upload)
 221                         nv50->state.dirty |= NV50_NEW_TEXTURE;
 222                 if (nv50->state.vtxfmt && nv50->state.vtxbuf)
 223                         nv50->state.dirty |= NV50_NEW_ARRAYS;
 224                 screen->cur_ctx = nv50;
 225         }
 226
 227         if (nv50->state.dirty & NV50_NEW_FRAMEBUFFER)
 228                 so_emit(chan, nv50->state.fb);
 229         if (nv50->state.dirty & NV50_NEW_BLEND)
 230                 so_emit(chan, nv50->state.blend);
 231         if (nv50->state.dirty & NV50_NEW_ZSA)
 232                 so_emit(chan, nv50->state.zsa);
 233         if (nv50->state.dirty & NV50_NEW_VERTPROG)
 234                 so_emit(chan, nv50->state.vertprog);
 235         if (nv50->state.dirty & NV50_NEW_FRAGPROG)
 236                 so_emit(chan, nv50->state.fragprog);
 237         if (nv50->state.dirty & NV50_NEW_GEOMPROG && nv50->state.geomprog)
 238                 so_emit(chan, nv50->state.geomprog);
 239         if (nv50->state.dirty & (NV50_NEW_FRAGPROG | NV50_NEW_VERTPROG |
 240                                  NV50_NEW_GEOMPROG | NV50_NEW_RASTERIZER))
 241                 so_emit(chan, nv50->state.fp_linkage);
 242         if ((nv50->state.dirty & (NV50_NEW_VERTPROG | NV50_NEW_GEOMPROG))
 243             && nv50->state.gp_linkage)
 244                 so_emit(chan, nv50->state.gp_linkage);
 245         if (nv50->state.dirty & NV50_NEW_RASTERIZER)
 246                 so_emit(chan, nv50->state.rast);
 247         if (nv50->state.dirty & NV50_NEW_BLEND_COLOUR)
 248                 so_emit(chan, nv50->state.blend_colour);
 249         if (nv50->state.dirty & NV50_NEW_STENCIL_REF)
 250                 so_emit(chan, nv50->state.stencil_ref);
 251         if (nv50->state.dirty & NV50_NEW_STIPPLE)
 252                 so_emit(chan, nv50->state.stipple);
 253         if (nv50->state.dirty & NV50_NEW_SCISSOR)
 254                 so_emit(chan, nv50->state.scissor);
 255         if (nv50->state.dirty & NV50_NEW_VIEWPORT)
 256                 so_emit(chan, nv50->state.viewport);
 257         if (nv50->state.dirty & NV50_NEW_SAMPLER)
 258                 so_emit(chan, nv50->state.tsc_upload);
 259         if (nv50->state.dirty & NV50_NEW_TEXTURE)
 260                 so_emit(chan, nv50->state.tic_upload);
 261         if (nv50->state.dirty & NV50_NEW_ARRAYS) {
 262                 so_emit(chan, nv50->state.vtxfmt);
 263                 so_emit(chan, nv50->state.vtxbuf);
 264                 if (nv50->state.vtxattr)
 265                         so_emit(chan, nv50->state.vtxattr);
 266         }
 267         nv50->state.dirty = 0;
 268 }
 269
 270 void
 271 nv50_state_flush_notify(struct nouveau_channel *chan)
 272 {
 273         struct nv50_context *nv50 = chan->user_private;
 274
 275         if (nv50->state.tic_upload && !(nv50->dirty & NV50_NEW_TEXTURE))
 276                 so_emit(chan, nv50->state.tic_upload);
 277
 278         so_emit_reloc_markers(chan, nv50->state.fb);
 279         so_emit_reloc_markers(chan, nv50->state.vertprog);
 280         so_emit_reloc_markers(chan, nv50->state.fragprog);
 281         so_emit_reloc_markers(chan, nv50->state.vtxbuf);
 282         so_emit_reloc_markers(chan, nv50->screen->static_init);
 283
 284         if (nv50->state.instbuf)
 285                 so_emit_reloc_markers(chan, nv50->state.instbuf);
 286 }
 287
 288 boolean
 289 nv50_state_validate(struct nv50_context *nv50)
 290 {
 291         struct nouveau_grobj *tesla = nv50->screen->tesla;
 292         struct nouveau_stateobj *so;
 293         unsigned i;
 294
 295         if (nv50->dirty & NV50_NEW_FRAMEBUFFER)
 296                 nv50_state_validate_fb(nv50);
 297
 298         if (nv50->dirty & NV50_NEW_BLEND)
 299                 so_ref(nv50->blend->so, &nv50->state.blend);
 300
 301         if (nv50->dirty & NV50_NEW_ZSA)
 302                 so_ref(nv50->zsa->so, &nv50->state.zsa);
 303
 304         if (nv50->dirty & (NV50_NEW_VERTPROG | NV50_NEW_VERTPROG_CB))
 305                 nv50_vertprog_validate(nv50);
 306
 307         if (nv50->dirty & (NV50_NEW_FRAGPROG | NV50_NEW_FRAGPROG_CB))
 308                 nv50_fragprog_validate(nv50);
 309
 310         if (nv50->dirty & (NV50_NEW_GEOMPROG | NV50_NEW_GEOMPROG_CB))
 311                 nv50_geomprog_validate(nv50);
 312
 313         if (nv50->dirty & (NV50_NEW_FRAGPROG | NV50_NEW_VERTPROG |
 314                            NV50_NEW_GEOMPROG | NV50_NEW_RASTERIZER))
 315                 nv50_fp_linkage_validate(nv50);
 316
 317         if (nv50->dirty & (NV50_NEW_GEOMPROG | NV50_NEW_VERTPROG))
 318                 nv50_gp_linkage_validate(nv50);
 319
 320         if (nv50->dirty & NV50_NEW_RASTERIZER)
 321                 so_ref(nv50->rasterizer->so, &nv50->state.rast);
 322
 323         if (nv50->dirty & NV50_NEW_BLEND_COLOUR) {
 324                 so = so_new(1, 4, 0);
 325                 so_method(so, tesla, NV50TCL_BLEND_COLOR(0), 4);
 326                 so_data  (so, fui(nv50->blend_colour.color[0]));
 327                 so_data  (so, fui(nv50->blend_colour.color[1]));
 328                 so_data  (so, fui(nv50->blend_colour.color[2]));
 329                 so_data  (so, fui(nv50->blend_colour.color[3]));
 330                 so_ref(so, &nv50->state.blend_colour);
 331                 so_ref(NULL, &so);
 332         }
 333
 334         if (nv50->dirty & NV50_NEW_STENCIL_REF) {
 335                 so = so_new(2, 2, 0);
 336                 so_method(so, tesla, NV50TCL_STENCIL_FRONT_FUNC_REF, 1);
 337                 so_data  (so, nv50->stencil_ref.ref_value[0]);
 338                 so_method(so, tesla, NV50TCL_STENCIL_BACK_FUNC_REF, 1);
 339                 so_data  (so, nv50->stencil_ref.ref_value[1]);
 340                 so_ref(so, &nv50->state.stencil_ref);
 341                 so_ref(NULL, &so);
 342         }
 343
 344         if (nv50->dirty & NV50_NEW_STIPPLE) {
 345                 so = so_new(1, 32, 0);
 346                 so_method(so, tesla, NV50TCL_POLYGON_STIPPLE_PATTERN(0), 32);
 347                 for (i = 0; i < 32; i++)
 348                         so_data(so, util_bswap32(nv50->stipple.stipple[i]));
 349                 so_ref(so, &nv50->state.stipple);
 350                 so_ref(NULL, &so);
 351         }
 352
 353         if (nv50->dirty & (NV50_NEW_SCISSOR | NV50_NEW_RASTERIZER)) {
 354                 struct pipe_rasterizer_state *rast = &nv50->rasterizer->pipe;
 355                 struct pipe_scissor_state *s = &nv50->scissor;
 356
 357                 if (nv50->state.scissor &&
 358                     (rast->scissor == 0 && nv50->state.scissor_enabled == 0))
 359                         goto scissor_uptodate;
 360                 nv50->state.scissor_enabled = rast->scissor;
 361
 362                 so = so_new(1, 2, 0);
 363                 so_method(so, tesla, NV50TCL_SCISSOR_HORIZ(0), 2);
 364                 if (nv50->state.scissor_enabled) {
 365                         so_data(so, (s->maxx << 16) | s->minx);
 366                         so_data(so, (s->maxy << 16) | s->miny);
 367                 } else {
 368                         so_data(so, (nv50->framebuffer.width << 16));
 369                         so_data(so, (nv50->framebuffer.height << 16));
 370                 }
 371                 so_ref(so, &nv50->state.scissor);
 372                 so_ref(NULL, &so);
 373                 nv50->state.dirty |= NV50_NEW_SCISSOR;
 374         }
 375 scissor_uptodate:
 376
 377         if (nv50->dirty & (NV50_NEW_VIEWPORT | NV50_NEW_RASTERIZER)) {
 378                 unsigned bypass;
 379
 380                 if (!nv50->rasterizer->pipe.bypass_vs_clip_and_viewport)
 381                         bypass = 0;
 382                 else
 383                         bypass = 1;
 384
 385                 if (nv50->state.viewport &&
 386                     (bypass || !(nv50->dirty & NV50_NEW_VIEWPORT)) &&
 387                     nv50->state.viewport_bypass == bypass)
 388                         goto viewport_uptodate;
 389                 nv50->state.viewport_bypass = bypass;
 390
 391                 so = so_new(5, 9, 0);
 392                 if (!bypass) {
 393                         so_method(so, tesla, NV50TCL_VIEWPORT_TRANSLATE_X(0), 3);
 394                         so_data  (so, fui(nv50->viewport.translate[0]));
 395                         so_data  (so, fui(nv50->viewport.translate[1]));
 396                         so_data  (so, fui(nv50->viewport.translate[2]));
 397                         so_method(so, tesla, NV50TCL_VIEWPORT_SCALE_X(0), 3);
 398                         so_data  (so, fui(nv50->viewport.scale[0]));
 399                         so_data  (so, fui(nv50->viewport.scale[1]));
 400                         so_data  (so, fui(nv50->viewport.scale[2]));
 401
 402                         so_method(so, tesla, NV50TCL_VIEWPORT_TRANSFORM_EN, 1);
 403                         so_data  (so, 1);
 404                         /* 0x0000 = remove whole primitive only (xyz)
 405                          * 0x1018 = remove whole primitive only (xy), clamp z
 406                          * 0x1080 = clip primitive (xyz)
 407                          * 0x1098 = clip primitive (xy), clamp z
 408                          */
 409                         so_method(so, tesla, NV50TCL_VIEW_VOLUME_CLIP_CTRL, 1);
 410                         so_data  (so, 0x1080);
 411                         /* no idea what 0f90 does */
 412                         so_method(so, tesla, 0x0f90, 1);
 413                         so_data  (so, 0);
 414                 } else {
 415                         so_method(so, tesla, NV50TCL_VIEWPORT_TRANSFORM_EN, 1);
 416                         so_data  (so, 0);
 417                         so_method(so, tesla, NV50TCL_VIEW_VOLUME_CLIP_CTRL, 1);
 418                         so_data  (so, 0x0000);
 419                         so_method(so, tesla, 0x0f90, 1);
 420                         so_data  (so, 1);
 421                 }
 422
 423                 so_ref(so, &nv50->state.viewport);
 424                 so_ref(NULL, &so);
 425                 nv50->state.dirty |= NV50_NEW_VIEWPORT;
 426         }
 427 viewport_uptodate:
 428
 429         if (nv50->dirty & NV50_NEW_SAMPLER) {
 430                 unsigned nr = 0;
 431
 432                 for (i = 0; i < PIPE_SHADER_TYPES; ++i)
 433                         nr += nv50->sampler_nr[i];
 434
 435                 so = so_new(1 + 5 * PIPE_SHADER_TYPES,
 436                             1 + 19 * PIPE_SHADER_TYPES + nr * 8,
 437                             PIPE_SHADER_TYPES * 2);
 438
 439                 nv50_validate_samplers(nv50, so, PIPE_SHADER_VERTEX);
 440                 nv50_validate_samplers(nv50, so, PIPE_SHADER_FRAGMENT);
 441
 442                 so_method(so, tesla, 0x1334, 1); /* flush TSC */
 443                 so_data  (so, 0);
 444
 445                 so_ref(so, &nv50->state.tsc_upload);
 446                 so_ref(NULL, &so);
 447         }
 448
 449         if (nv50->dirty & (NV50_NEW_TEXTURE | NV50_NEW_SAMPLER))
 450                 nv50_tex_validate(nv50);
 451
 452         if (nv50->dirty & NV50_NEW_ARRAYS)
 453                 nv50_vbo_validate(nv50);
 454
 455         nv50->state.dirty |= nv50->dirty;
 456         nv50->dirty = 0;
 457         nv50_state_emit(nv50);
 458
 459         return TRUE;
 460 }
 461
 462 void nv50_so_init_sifc(struct nv50_context *nv50,
 463                        struct nouveau_stateobj *so,
 464                        struct nouveau_bo *bo, unsigned reloc,
 465                        unsigned offset, unsigned size)
 466 {
 467         struct nouveau_grobj *eng2d = nv50->screen->eng2d;
 468
 469         reloc |= NOUVEAU_BO_WR;
 470
 471         so_method(so, eng2d, NV50_2D_DST_FORMAT, 2);
 472         so_data  (so, NV50_2D_DST_FORMAT_R8_UNORM);
 473         so_data  (so, 1);
 474         so_method(so, eng2d, NV50_2D_DST_PITCH, 5);
 475         so_data  (so, 262144);
 476         so_data  (so, 65536);
 477         so_data  (so, 1);
 478         so_reloc (so, bo, offset, reloc | NOUVEAU_BO_HIGH, 0, 0);
 479         so_reloc (so, bo, offset, reloc | NOUVEAU_BO_LOW, 0, 0);
 480         so_method(so, eng2d, NV50_2D_SIFC_BITMAP_ENABLE, 2);
 481         so_data  (so, 0);
 482         so_data  (so, NV50_2D_SIFC_FORMAT_R8_UNORM);
 483         so_method(so, eng2d, NV50_2D_SIFC_WIDTH, 10);
 484         so_data  (so, size);
 485         so_data  (so, 1);
 486         so_data  (so, 0);
 487         so_data  (so, 1);
 488         so_data  (so, 0);
 489         so_data  (so, 1);
 490         so_data  (so, 0);
 491         so_data  (so, 0);
 492         so_data  (so, 0);
 493         so_data  (so, 0);
 494 }