src/gallium/drivers/nv50/nv50_screen.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_screen.h"
  24
  25 #include "nv50_context.h"
  26 #include "nv50_screen.h"
  27 #include "nv50_resource.h"
  28
  29 #include "nouveau/nouveau_stateobj.h"
  30
  31 static boolean
  32 nv50_screen_is_format_supported(struct pipe_screen *pscreen,
  33                                 enum pipe_format format,
  34                                 enum pipe_texture_target target,
  35                                 unsigned tex_usage, unsigned geom_flags)
  36 {
  37         if (tex_usage & PIPE_BIND_RENDER_TARGET) {
  38                 switch (format) {
  39                 case PIPE_FORMAT_B8G8R8X8_UNORM:
  40                 case PIPE_FORMAT_B8G8R8A8_UNORM:
  41                 case PIPE_FORMAT_B5G6R5_UNORM:
  42                 case PIPE_FORMAT_R16G16B16A16_SNORM:
  43                 case PIPE_FORMAT_R16G16B16A16_UNORM:
  44                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
  45                 case PIPE_FORMAT_R16G16_SNORM:
  46                 case PIPE_FORMAT_R16G16_UNORM:
  47                         return TRUE;
  48                 default:
  49                         break;
  50                 }
  51         } else
  52         if (tex_usage & PIPE_BIND_DEPTH_STENCIL) {
  53                 switch (format) {
  54                 case PIPE_FORMAT_Z32_FLOAT:
  55                 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
  56                 case PIPE_FORMAT_Z24X8_UNORM:
  57                 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
  58                         return TRUE;
  59                 default:
  60                         break;
  61                 }
  62         } else {
  63                 switch (format) {
  64                 case PIPE_FORMAT_B8G8R8A8_UNORM:
  65                 case PIPE_FORMAT_B8G8R8X8_UNORM:
  66                 case PIPE_FORMAT_B8G8R8A8_SRGB:
  67                 case PIPE_FORMAT_B8G8R8X8_SRGB:
  68                 case PIPE_FORMAT_B5G5R5A1_UNORM:
  69                 case PIPE_FORMAT_B4G4R4A4_UNORM:
  70                 case PIPE_FORMAT_B5G6R5_UNORM:
  71                 case PIPE_FORMAT_L8_UNORM:
  72                 case PIPE_FORMAT_A8_UNORM:
  73                 case PIPE_FORMAT_I8_UNORM:
  74                 case PIPE_FORMAT_L8A8_UNORM:
  75                 case PIPE_FORMAT_DXT1_RGB:
  76                 case PIPE_FORMAT_DXT1_RGBA:
  77                 case PIPE_FORMAT_DXT3_RGBA:
  78                 case PIPE_FORMAT_DXT5_RGBA:
  79                 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
  80                 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
  81                 case PIPE_FORMAT_Z32_FLOAT:
  82                 case PIPE_FORMAT_R16G16B16A16_SNORM:
  83                 case PIPE_FORMAT_R16G16B16A16_UNORM:
  84                 case PIPE_FORMAT_R32G32B32A32_FLOAT:
  85                 case PIPE_FORMAT_R16G16_SNORM:
  86                 case PIPE_FORMAT_R16G16_UNORM:
  87                         return TRUE;
  88                 default:
  89                         break;
  90                 }
  91         }
  92
  93         return FALSE;
  94 }
  95
  96 static int
  97 nv50_screen_get_param(struct pipe_screen *pscreen, int param)
  98 {
  99         struct nv50_screen *screen = nv50_screen(pscreen);
 100
 101         switch (param) {
 102         case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 103                 return 32;
 104         case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 105                 return 32;
 106         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 107                 return 64;
 108         case PIPE_CAP_NPOT_TEXTURES:
 109                 return 1;
 110         case PIPE_CAP_TWO_SIDED_STENCIL:
 111                 return 1;
 112         case PIPE_CAP_GLSL:
 113                 return 1;
 114         case PIPE_CAP_ANISOTROPIC_FILTER:
 115                 return 1;
 116         case PIPE_CAP_POINT_SPRITE:
 117                 return 1;
 118         case PIPE_CAP_MAX_RENDER_TARGETS:
 119                 return 8;
 120         case PIPE_CAP_OCCLUSION_QUERY:
 121                 return 1;
 122         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 123                 return 1;
 124         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 125                 return 13;
 126         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 127                 return 10;
 128         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 129                 return 13;
 130         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 131         case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 132                 return 1;
 133         case PIPE_CAP_TGSI_CONT_SUPPORTED:
 134                 return 1;
 135         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 136                 return 1;
 137         case NOUVEAU_CAP_HW_VTXBUF:
 138                 return screen->force_push ? 0 : 1;
 139         case NOUVEAU_CAP_HW_IDXBUF:
 140                 return screen->force_push ? 0 : 1;
 141         case PIPE_CAP_INDEP_BLEND_ENABLE:
 142                 return 1;
 143         case PIPE_CAP_INDEP_BLEND_FUNC:
 144                 return 0;
 145         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 146         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 147                 return 1;
 148         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 149         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 150                 return 0;
 151         default:
 152                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
 153                 return 0;
 154         }
 155 }
 156
 157 static float
 158 nv50_screen_get_paramf(struct pipe_screen *pscreen, int param)
 159 {
 160         switch (param) {
 161         case PIPE_CAP_MAX_LINE_WIDTH:
 162         case PIPE_CAP_MAX_LINE_WIDTH_AA:
 163                 return 10.0;
 164         case PIPE_CAP_MAX_POINT_WIDTH:
 165         case PIPE_CAP_MAX_POINT_WIDTH_AA:
 166                 return 64.0;
 167         case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 168                 return 16.0;
 169         case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 170                 return 4.0;
 171         default:
 172                 NOUVEAU_ERR("Unknown PIPE_CAP %d\n", param);
 173                 return 0.0;
 174         }
 175 }
 176
 177 static void
 178 nv50_screen_destroy(struct pipe_screen *pscreen)
 179 {
 180         struct nv50_screen *screen = nv50_screen(pscreen);
 181         unsigned i;
 182
 183         for (i = 0; i < 3; i++) {
 184                 if (screen->constbuf_parm[i])
 185                         nouveau_bo_ref(NULL, &screen->constbuf_parm[i]);
 186         }
 187
 188         if (screen->constbuf_misc[0])
 189                 nouveau_bo_ref(NULL, &screen->constbuf_misc[0]);
 190         if (screen->tic)
 191                 nouveau_bo_ref(NULL, &screen->tic);
 192         if (screen->tsc)
 193                 nouveau_bo_ref(NULL, &screen->tsc);
 194
 195         nouveau_notifier_free(&screen->sync);
 196         nouveau_grobj_free(&screen->tesla);
 197         nouveau_grobj_free(&screen->eng2d);
 198         nouveau_grobj_free(&screen->m2mf);
 199         nouveau_resource_destroy(&screen->immd_heap[0]);
 200         nouveau_resource_destroy(&screen->parm_heap[0]);
 201         nouveau_resource_destroy(&screen->parm_heap[1]);
 202         nouveau_screen_fini(&screen->base);
 203         FREE(screen);
 204 }
 205
 206 #define BGN_RELOC(ch, bo, gr, m, n, fl) \
 207    OUT_RELOC(ch, bo, (n << 18) | (gr->subc << 13) | m, fl, 0, 0)
 208
 209 void
 210 nv50_screen_relocs(struct nv50_screen *screen)
 211 {
 212         struct nouveau_channel *chan = screen->base.channel;
 213         struct nouveau_grobj *tesla = screen->tesla;
 214         unsigned i;
 215         const unsigned rl = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD | NOUVEAU_BO_DUMMY;
 216
 217         MARK_RING (chan, 28, 26);
 218
 219         /* cause grobj autobind */
 220         BEGIN_RING(chan, tesla, 0x0100, 1);
 221         OUT_RING  (chan, 0);
 222
 223         BGN_RELOC (chan, screen->tic, tesla, NV50TCL_TIC_ADDRESS_HIGH, 2, rl);
 224         OUT_RELOCh(chan, screen->tic, 0, rl);
 225         OUT_RELOCl(chan, screen->tic, 0, rl);
 226
 227         BGN_RELOC (chan, screen->tsc, tesla, NV50TCL_TSC_ADDRESS_HIGH, 2, rl);
 228         OUT_RELOCh(chan, screen->tsc, 0, rl);
 229         OUT_RELOCl(chan, screen->tsc, 0, rl);
 230
 231         BGN_RELOC (chan, screen->constbuf_misc[0],
 232                    tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3, rl);
 233         OUT_RELOCh(chan, screen->constbuf_misc[0], 0, rl);
 234         OUT_RELOCl(chan, screen->constbuf_misc[0], 0, rl);
 235         OUT_RELOC (chan, screen->constbuf_misc[0],
 236                    (NV50_CB_PMISC << 16) | 0x0200, rl, 0, 0);
 237
 238         BGN_RELOC (chan, screen->constbuf_misc[0],
 239                    tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3, rl);
 240         OUT_RELOCh(chan, screen->constbuf_misc[0], 0x200, rl);
 241         OUT_RELOCl(chan, screen->constbuf_misc[0], 0x200, rl);
 242         OUT_RELOC (chan, screen->constbuf_misc[0],
 243                    (NV50_CB_AUX << 16) | 0x0200, rl, 0, 0);
 244
 245         for (i = 0; i < 3; ++i) {
 246                 BGN_RELOC (chan, screen->constbuf_parm[i],
 247                            tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3, rl);
 248                 OUT_RELOCh(chan, screen->constbuf_parm[i], 0, rl);
 249                 OUT_RELOCl(chan, screen->constbuf_parm[i], 0, rl);
 250                 OUT_RELOC (chan, screen->constbuf_parm[i],
 251                            ((NV50_CB_PVP + i) << 16) | 0x0800, rl, 0, 0);
 252         }
 253 }
 254
 255 struct pipe_screen *
 256 nv50_screen_create(struct pipe_winsys *ws, struct nouveau_device *dev)
 257 {
 258         struct nv50_screen *screen = CALLOC_STRUCT(nv50_screen);
 259         struct nouveau_channel *chan;
 260         struct pipe_screen *pscreen;
 261         unsigned chipset = dev->chipset;
 262         unsigned tesla_class = 0;
 263         int ret, i;
 264         const unsigned rl = NOUVEAU_BO_VRAM | NOUVEAU_BO_RD;
 265
 266         if (!screen)
 267                 return NULL;
 268         pscreen = &screen->base.base;
 269
 270         ret = nouveau_screen_init(&screen->base, dev);
 271         if (ret) {
 272                 nv50_screen_destroy(pscreen);
 273                 return NULL;
 274         }
 275         chan = screen->base.channel;
 276
 277         pscreen->winsys = ws;
 278         pscreen->destroy = nv50_screen_destroy;
 279         pscreen->get_param = nv50_screen_get_param;
 280         pscreen->get_paramf = nv50_screen_get_paramf;
 281         pscreen->is_format_supported = nv50_screen_is_format_supported;
 282         pscreen->context_create = nv50_create;
 283
 284         nv50_screen_init_resource_functions(pscreen);
 285
 286         /* DMA engine object */
 287         ret = nouveau_grobj_alloc(chan, 0xbeef5039,
 288                 NV50_MEMORY_TO_MEMORY_FORMAT, &screen->m2mf);
 289         if (ret) {
 290                 NOUVEAU_ERR("Error creating M2MF object: %d\n", ret);
 291                 nv50_screen_destroy(pscreen);
 292                 return NULL;
 293         }
 294
 295         /* 2D object */
 296         ret = nouveau_grobj_alloc(chan, 0xbeef502d, NV50_2D, &screen->eng2d);
 297         if (ret) {
 298                 NOUVEAU_ERR("Error creating 2D object: %d\n", ret);
 299                 nv50_screen_destroy(pscreen);
 300                 return NULL;
 301         }
 302
 303         /* 3D object */
 304         switch (chipset & 0xf0) {
 305         case 0x50:
 306                 tesla_class = NV50TCL;
 307                 break;
 308         case 0x80:
 309         case 0x90:
 310                 tesla_class = NV84TCL;
 311                 break;
 312         case 0xa0:
 313                 switch (chipset) {
 314                 case 0xa0:
 315                 case 0xaa:
 316                 case 0xac:
 317                         tesla_class = NVA0TCL;
 318                         break;
 319                 default:
 320                         tesla_class = NVA8TCL;
 321                         break;
 322                 }
 323                 break;
 324         default:
 325                 NOUVEAU_ERR("Not a known NV50 chipset: NV%02x\n", chipset);
 326                 nv50_screen_destroy(pscreen);
 327                 return NULL;
 328         }
 329
 330         ret = nouveau_grobj_alloc(chan, 0xbeef5097, tesla_class,
 331                 &screen->tesla);
 332         if (ret) {
 333                 NOUVEAU_ERR("Error creating 3D object: %d\n", ret);
 334                 nv50_screen_destroy(pscreen);
 335                 return NULL;
 336         }
 337
 338         /* Sync notifier */
 339         ret = nouveau_notifier_alloc(chan, 0xbeef0301, 1, &screen->sync);
 340         if (ret) {
 341                 NOUVEAU_ERR("Error creating notifier object: %d\n", ret);
 342                 nv50_screen_destroy(pscreen);
 343                 return NULL;
 344         }
 345
 346         /* Static M2MF init */
 347         BEGIN_RING(chan, screen->m2mf,
 348                    NV04_MEMORY_TO_MEMORY_FORMAT_DMA_NOTIFY, 3);
 349         OUT_RING  (chan, screen->sync->handle);
 350         OUT_RING  (chan, chan->vram->handle);
 351         OUT_RING  (chan, chan->vram->handle);
 352
 353         /* Static 2D init */
 354         BEGIN_RING(chan, screen->eng2d, NV50_2D_DMA_NOTIFY, 4);
 355         OUT_RING  (chan, screen->sync->handle);
 356         OUT_RING  (chan, chan->vram->handle);
 357         OUT_RING  (chan, chan->vram->handle);
 358         OUT_RING  (chan, chan->vram->handle);
 359         BEGIN_RING(chan, screen->eng2d, NV50_2D_OPERATION, 1);
 360         OUT_RING  (chan, NV50_2D_OPERATION_SRCCOPY);
 361         BEGIN_RING(chan, screen->eng2d, NV50_2D_CLIP_ENABLE, 1);
 362         OUT_RING  (chan, 0);
 363         BEGIN_RING(chan, screen->eng2d, 0x0888, 1);
 364         OUT_RING  (chan, 1);
 365
 366         /* Static tesla init */
 367         BEGIN_RING(chan, screen->tesla, NV50TCL_COND_MODE, 1);
 368         OUT_RING  (chan, NV50TCL_COND_MODE_ALWAYS);
 369         BEGIN_RING(chan, screen->tesla, NV50TCL_DMA_NOTIFY, 1);
 370         OUT_RING  (chan, screen->sync->handle);
 371         BEGIN_RING(chan, screen->tesla, NV50TCL_DMA_ZETA, 11);
 372         for (i = 0; i < 11; i++)
 373                 OUT_RING  (chan, chan->vram->handle);
 374         BEGIN_RING(chan, screen->tesla,
 375                    NV50TCL_DMA_COLOR(0), NV50TCL_DMA_COLOR__SIZE);
 376         for (i = 0; i < NV50TCL_DMA_COLOR__SIZE; i++)
 377                 OUT_RING  (chan, chan->vram->handle);
 378
 379         BEGIN_RING(chan, screen->tesla, NV50TCL_RT_CONTROL, 1);
 380         OUT_RING  (chan, 1);
 381
 382         /* activate all 32 lanes (threads) in a warp */
 383         BEGIN_RING(chan, screen->tesla, NV50TCL_REG_MODE, 1);
 384         OUT_RING  (chan, NV50TCL_REG_MODE_STRIPED);
 385         BEGIN_RING(chan, screen->tesla, 0x1400, 1);
 386         OUT_RING  (chan, 0xf);
 387
 388         /* max TIC (bits 4:8) & TSC (ignored) bindings, per program type */
 389         for (i = 0; i < 3; ++i) {
 390                 BEGIN_RING(chan, screen->tesla, NV50TCL_TEX_LIMITS(i), 1);
 391                 OUT_RING  (chan, 0x54);
 392         }
 393
 394         /* origin is top left (set to 1 for bottom left) */
 395         BEGIN_RING(chan, screen->tesla, NV50TCL_Y_ORIGIN_BOTTOM, 1);
 396         OUT_RING  (chan, 0);
 397         BEGIN_RING(chan, screen->tesla, NV50TCL_VP_REG_ALLOC_RESULT, 1);
 398         OUT_RING  (chan, 8);
 399
 400         /* constant buffers for immediates and VP/FP parameters */
 401         ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 0, (32 * 4) * 4,
 402                              &screen->constbuf_misc[0]);
 403         if (ret) {
 404                 nv50_screen_destroy(pscreen);
 405                 return NULL;
 406         }
 407         BEGIN_RING(chan, screen->tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3);
 408         OUT_RELOCh(chan, screen->constbuf_misc[0], 0, rl);
 409         OUT_RELOCl(chan, screen->constbuf_misc[0], 0, rl);
 410         OUT_RING  (chan, (NV50_CB_PMISC << 16) | 0x0200);
 411         BEGIN_RING(chan, screen->tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3);
 412         OUT_RELOCh(chan, screen->constbuf_misc[0], 0x200, rl);
 413         OUT_RELOCl(chan, screen->constbuf_misc[0], 0x200, rl);
 414         OUT_RING  (chan, (NV50_CB_AUX << 16) | 0x0200);
 415
 416         for (i = 0; i < 3; i++) {
 417                 ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 0, (256 * 4) * 4,
 418                                      &screen->constbuf_parm[i]);
 419                 if (ret) {
 420                         nv50_screen_destroy(pscreen);
 421                         return NULL;
 422                 }
 423                 BEGIN_RING(chan, screen->tesla, NV50TCL_CB_DEF_ADDRESS_HIGH, 3);
 424                 OUT_RELOCh(chan, screen->constbuf_parm[i], 0, rl);
 425                 OUT_RELOCl(chan, screen->constbuf_parm[i], 0, rl);
 426                 OUT_RING  (chan, ((NV50_CB_PVP + i) << 16) | 0x0800);
 427         }
 428
 429         if (nouveau_resource_init(&screen->immd_heap[0], 0, 128) ||
 430             nouveau_resource_init(&screen->parm_heap[0], 0, 512) ||
 431             nouveau_resource_init(&screen->parm_heap[1], 0, 512))
 432         {
 433                 NOUVEAU_ERR("Error initialising constant buffers.\n");
 434                 nv50_screen_destroy(pscreen);
 435                 return NULL;
 436         }
 437
 438         ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 0, 3 * 32 * (8 * 4),
 439                              &screen->tic);
 440         if (ret) {
 441                 nv50_screen_destroy(pscreen);
 442                 return NULL;
 443         }
 444         BEGIN_RING(chan, screen->tesla, NV50TCL_TIC_ADDRESS_HIGH, 3);
 445         OUT_RELOCh(chan, screen->tic, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
 446         OUT_RELOCl(chan, screen->tic, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
 447         OUT_RING  (chan, 3 * 32 - 1);
 448
 449         ret = nouveau_bo_new(dev, NOUVEAU_BO_VRAM, 0, 3 * 32 * (8 * 4),
 450                              &screen->tsc);
 451         if (ret) {
 452                 nv50_screen_destroy(pscreen);
 453                 return NULL;
 454         }
 455         BEGIN_RING(chan, screen->tesla, NV50TCL_TSC_ADDRESS_HIGH, 3);
 456         OUT_RELOCh(chan, screen->tsc, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
 457         OUT_RELOCl(chan, screen->tsc, 0, NOUVEAU_BO_VRAM | NOUVEAU_BO_RD);
 458         OUT_RING  (chan, 0); /* ignored if TSC_LINKED (0x1234) == 1 */
 459
 460         /* map constant buffers:
 461          *  B = buffer ID (maybe more than 1 byte)
 462          *  N = CB index used in shader instruction
 463          *  P = program type (0 = VP, 2 = GP, 3 = FP)
 464          * SET_PROGRAM_CB = 0x000BBNP1
 465          */
 466         BEGIN_RING_NI(chan, screen->tesla, NV50TCL_SET_PROGRAM_CB, 8);
 467         /* bind immediate buffer */
 468         OUT_RING  (chan, 0x001 | (NV50_CB_PMISC << 12));
 469         OUT_RING  (chan, 0x021 | (NV50_CB_PMISC << 12));
 470         OUT_RING  (chan, 0x031 | (NV50_CB_PMISC << 12));
 471         /* bind auxiliary constbuf to immediate data bo */
 472         OUT_RING  (chan, 0x201 | (NV50_CB_AUX << 12));
 473         OUT_RING  (chan, 0x221 | (NV50_CB_AUX << 12));
 474         /* bind parameter buffers */
 475         OUT_RING  (chan, 0x101 | (NV50_CB_PVP << 12));
 476         OUT_RING  (chan, 0x121 | (NV50_CB_PGP << 12));
 477         OUT_RING  (chan, 0x131 | (NV50_CB_PFP << 12));
 478
 479         /* Vertex array limits - max them out */
 480         for (i = 0; i < 16; i++) {
 481                 BEGIN_RING(chan, screen->tesla,
 482                            NV50TCL_VERTEX_ARRAY_LIMIT_HIGH(i), 2);
 483                 OUT_RING  (chan, 0x000000ff);
 484                 OUT_RING  (chan, 0xffffffff);
 485         }
 486
 487         BEGIN_RING(chan, screen->tesla, NV50TCL_DEPTH_RANGE_NEAR(0), 2);
 488         OUT_RINGf (chan, 0.0f);
 489         OUT_RINGf (chan, 1.0f);
 490
 491         /* no dynamic combination of TIC & TSC entries => only BIND_TIC used */
 492         BEGIN_RING(chan, screen->tesla, NV50TCL_LINKED_TSC, 1);
 493         OUT_RING  (chan, 1);
 494
 495         BEGIN_RING(chan, screen->tesla, NV50TCL_EDGEFLAG_ENABLE, 1);
 496         OUT_RING  (chan, 1); /* default edgeflag to TRUE */
 497
 498         FIRE_RING (chan);
 499
 500         screen->force_push = debug_get_bool_option("NV50_ALWAYS_PUSH", FALSE);
 501         return pscreen;
 502 }
 503