drivers/gpu/drm/nouveau/nv40_graph.c

   1 /*
   2  * Copyright (C) 2007 Ben Skeggs.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <linux/firmware.h>
  28
  29 #include "drmP.h"
  30 #include "drm.h"
  31 #include "nouveau_drv.h"
  32
  33 MODULE_FIRMWARE("nouveau/nv40.ctxprog");
  34 MODULE_FIRMWARE("nouveau/nv40.ctxvals");
  35 MODULE_FIRMWARE("nouveau/nv41.ctxprog");
  36 MODULE_FIRMWARE("nouveau/nv41.ctxvals");
  37 MODULE_FIRMWARE("nouveau/nv42.ctxprog");
  38 MODULE_FIRMWARE("nouveau/nv42.ctxvals");
  39 MODULE_FIRMWARE("nouveau/nv43.ctxprog");
  40 MODULE_FIRMWARE("nouveau/nv43.ctxvals");
  41 MODULE_FIRMWARE("nouveau/nv44.ctxprog");
  42 MODULE_FIRMWARE("nouveau/nv44.ctxvals");
  43 MODULE_FIRMWARE("nouveau/nv46.ctxprog");
  44 MODULE_FIRMWARE("nouveau/nv46.ctxvals");
  45 MODULE_FIRMWARE("nouveau/nv47.ctxprog");
  46 MODULE_FIRMWARE("nouveau/nv47.ctxvals");
  47 MODULE_FIRMWARE("nouveau/nv49.ctxprog");
  48 MODULE_FIRMWARE("nouveau/nv49.ctxvals");
  49 MODULE_FIRMWARE("nouveau/nv4a.ctxprog");
  50 MODULE_FIRMWARE("nouveau/nv4a.ctxvals");
  51 MODULE_FIRMWARE("nouveau/nv4b.ctxprog");
  52 MODULE_FIRMWARE("nouveau/nv4b.ctxvals");
  53 MODULE_FIRMWARE("nouveau/nv4c.ctxprog");
  54 MODULE_FIRMWARE("nouveau/nv4c.ctxvals");
  55 MODULE_FIRMWARE("nouveau/nv4e.ctxprog");
  56 MODULE_FIRMWARE("nouveau/nv4e.ctxvals");
  57
  58 struct nouveau_channel *
  59 nv40_graph_channel(struct drm_device *dev)
  60 {
  61         struct drm_nouveau_private *dev_priv = dev->dev_private;
  62         uint32_t inst;
  63         int i;
  64
  65         inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
  66         if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
  67                 return NULL;
  68         inst = (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) << 4;
  69
  70         for (i = 0; i < dev_priv->engine.fifo.channels; i++) {
  71                 struct nouveau_channel *chan = dev_priv->fifos[i];
  72
  73                 if (chan && chan->ramin_grctx &&
  74                     chan->ramin_grctx->instance == inst)
  75                         return chan;
  76         }
  77
  78         return NULL;
  79 }
  80
  81 int
  82 nv40_graph_create_context(struct nouveau_channel *chan)
  83 {
  84         struct drm_device *dev = chan->dev;
  85         struct drm_nouveau_private *dev_priv = dev->dev_private;
  86         struct nouveau_gpuobj *ctx;
  87         int ret;
  88
  89         /* Allocate a 175KiB block of PRAMIN to store the context.  This
  90          * is massive overkill for a lot of chipsets, but it should be safe
  91          * until we're able to implement this properly (will happen at more
  92          * or less the same time we're able to write our own context programs.
  93          */
  94         ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, 175*1024, 16,
  95                                           NVOBJ_FLAG_ZERO_ALLOC,
  96                                           &chan->ramin_grctx);
  97         if (ret)
  98                 return ret;
  99         ctx = chan->ramin_grctx->gpuobj;
 100
 101         /* Initialise default context values */
 102         dev_priv->engine.instmem.prepare_access(dev, true);
 103         nv40_grctx_vals_load(dev, ctx);
 104         nv_wo32(dev, ctx, 0, ctx->im_pramin->start);
 105         dev_priv->engine.instmem.finish_access(dev);
 106
 107         return 0;
 108 }
 109
 110 void
 111 nv40_graph_destroy_context(struct nouveau_channel *chan)
 112 {
 113         nouveau_gpuobj_ref_del(chan->dev, &chan->ramin_grctx);
 114 }
 115
 116 static int
 117 nv40_graph_transfer_context(struct drm_device *dev, uint32_t inst, int save)
 118 {
 119         uint32_t old_cp, tv = 1000, tmp;
 120         int i;
 121
 122         old_cp = nv_rd32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER);
 123         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
 124
 125         tmp  = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0310);
 126         tmp |= save ? NV40_PGRAPH_CTXCTL_0310_XFER_SAVE :
 127                       NV40_PGRAPH_CTXCTL_0310_XFER_LOAD;
 128         nv_wr32(dev, NV40_PGRAPH_CTXCTL_0310, tmp);
 129
 130         tmp  = nv_rd32(dev, NV40_PGRAPH_CTXCTL_0304);
 131         tmp |= NV40_PGRAPH_CTXCTL_0304_XFER_CTX;
 132         nv_wr32(dev, NV40_PGRAPH_CTXCTL_0304, tmp);
 133
 134         nouveau_wait_for_idle(dev);
 135
 136         for (i = 0; i < tv; i++) {
 137                 if (nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C) == 0)
 138                         break;
 139         }
 140
 141         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, old_cp);
 142
 143         if (i == tv) {
 144                 uint32_t ucstat = nv_rd32(dev, NV40_PGRAPH_CTXCTL_UCODE_STAT);
 145                 NV_ERROR(dev, "Failed: Instance=0x%08x Save=%d\n", inst, save);
 146                 NV_ERROR(dev, "IP: 0x%02x, Opcode: 0x%08x\n",
 147                          ucstat >> NV40_PGRAPH_CTXCTL_UCODE_STAT_IP_SHIFT,
 148                          ucstat  & NV40_PGRAPH_CTXCTL_UCODE_STAT_OP_MASK);
 149                 NV_ERROR(dev, "0x40030C = 0x%08x\n",
 150                          nv_rd32(dev, NV40_PGRAPH_CTXCTL_030C));
 151                 return -EBUSY;
 152         }
 153
 154         return 0;
 155 }
 156
 157 /* Restore the context for a specific channel into PGRAPH */
 158 int
 159 nv40_graph_load_context(struct nouveau_channel *chan)
 160 {
 161         struct drm_device *dev = chan->dev;
 162         uint32_t inst;
 163         int ret;
 164
 165         if (!chan->ramin_grctx)
 166                 return -EINVAL;
 167         inst = chan->ramin_grctx->instance >> 4;
 168
 169         ret = nv40_graph_transfer_context(dev, inst, 0);
 170         if (ret)
 171                 return ret;
 172
 173         /* 0x40032C, no idea of it's exact function.  Could simply be a
 174          * record of the currently active PGRAPH context.  It's currently
 175          * unknown as to what bit 24 does.  The nv ddx has it set, so we will
 176          * set it here too.
 177          */
 178         nv_wr32(dev, NV20_PGRAPH_CHANNEL_CTX_POINTER, inst);
 179         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR,
 180                  (inst & NV40_PGRAPH_CTXCTL_CUR_INSTANCE) |
 181                   NV40_PGRAPH_CTXCTL_CUR_LOADED);
 182         /* 0x32E0 records the instance address of the active FIFO's PGRAPH
 183          * context.  If at any time this doesn't match 0x40032C, you will
 184          * recieve PGRAPH_INTR_CONTEXT_SWITCH
 185          */
 186         nv_wr32(dev, NV40_PFIFO_GRCTX_INSTANCE, inst);
 187         return 0;
 188 }
 189
 190 int
 191 nv40_graph_unload_context(struct drm_device *dev)
 192 {
 193         uint32_t inst;
 194         int ret;
 195
 196         inst = nv_rd32(dev, NV40_PGRAPH_CTXCTL_CUR);
 197         if (!(inst & NV40_PGRAPH_CTXCTL_CUR_LOADED))
 198                 return 0;
 199         inst &= NV40_PGRAPH_CTXCTL_CUR_INSTANCE;
 200
 201         ret = nv40_graph_transfer_context(dev, inst, 1);
 202
 203         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, inst);
 204         return ret;
 205 }
 206
 207 struct nouveau_ctxprog {
 208         uint32_t signature;
 209         uint8_t  version;
 210         uint16_t length;
 211         uint32_t data[];
 212 } __attribute__ ((packed));
 213
 214 struct nouveau_ctxvals {
 215         uint32_t signature;
 216         uint8_t  version;
 217         uint32_t length;
 218         struct {
 219                 uint32_t offset;
 220                 uint32_t value;
 221         } data[];
 222 } __attribute__ ((packed));
 223
 224 int
 225 nv40_grctx_init(struct drm_device *dev)
 226 {
 227         struct drm_nouveau_private *dev_priv = dev->dev_private;
 228         struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
 229         const int chipset = dev_priv->chipset;
 230         const struct firmware *fw;
 231         const struct nouveau_ctxprog *cp;
 232         const struct nouveau_ctxvals *cv;
 233         char name[32];
 234         int ret, i;
 235
 236         pgraph->accel_blocked = true;
 237
 238         if (!pgraph->ctxprog) {
 239                 sprintf(name, "nouveau/nv%02x.ctxprog", chipset);
 240                 ret = request_firmware(&fw, name, &dev->pdev->dev);
 241                 if (ret) {
 242                         NV_ERROR(dev, "No ctxprog for NV%02x\n", chipset);
 243                         return ret;
 244                 }
 245
 246                 pgraph->ctxprog = kmalloc(fw->size, GFP_KERNEL);
 247                 if (!pgraph->ctxprog) {
 248                         NV_ERROR(dev, "OOM copying ctxprog\n");
 249                         release_firmware(fw);
 250                         return -ENOMEM;
 251                 }
 252                 memcpy(pgraph->ctxprog, fw->data, fw->size);
 253
 254                 cp = pgraph->ctxprog;
 255                 if (cp->signature != 0x5043564e || cp->version != 0 ||
 256                     cp->length != ((fw->size - 7) / 4)) {
 257                         NV_ERROR(dev, "ctxprog invalid\n");
 258                         release_firmware(fw);
 259                         nv40_grctx_fini(dev);
 260                         return -EINVAL;
 261                 }
 262                 release_firmware(fw);
 263         }
 264
 265         if (!pgraph->ctxvals) {
 266                 sprintf(name, "nouveau/nv%02x.ctxvals", chipset);
 267                 ret = request_firmware(&fw, name, &dev->pdev->dev);
 268                 if (ret) {
 269                         NV_ERROR(dev, "No ctxvals for NV%02x\n", chipset);
 270                         nv40_grctx_fini(dev);
 271                         return ret;
 272                 }
 273
 274                 pgraph->ctxvals = kmalloc(fw->size, GFP_KERNEL);
 275                 if (!pgraph->ctxprog) {
 276                         NV_ERROR(dev, "OOM copying ctxprog\n");
 277                         release_firmware(fw);
 278                         nv40_grctx_fini(dev);
 279                         return -ENOMEM;
 280                 }
 281                 memcpy(pgraph->ctxvals, fw->data, fw->size);
 282
 283                 cv = (void *)pgraph->ctxvals;
 284                 if (cv->signature != 0x5643564e || cv->version != 0 ||
 285                     cv->length != ((fw->size - 9) / 8)) {
 286                         NV_ERROR(dev, "ctxvals invalid\n");
 287                         release_firmware(fw);
 288                         nv40_grctx_fini(dev);
 289                         return -EINVAL;
 290                 }
 291                 release_firmware(fw);
 292         }
 293
 294         cp = pgraph->ctxprog;
 295
 296         nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0);
 297         for (i = 0; i < cp->length; i++)
 298                 nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, cp->data[i]);
 299
 300         pgraph->accel_blocked = false;
 301         return 0;
 302 }
 303
 304 void
 305 nv40_grctx_fini(struct drm_device *dev)
 306 {
 307         struct drm_nouveau_private *dev_priv = dev->dev_private;
 308         struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
 309
 310         if (pgraph->ctxprog) {
 311                 kfree(pgraph->ctxprog);
 312                 pgraph->ctxprog = NULL;
 313         }
 314
 315         if (pgraph->ctxvals) {
 316                 kfree(pgraph->ctxprog);
 317                 pgraph->ctxvals = NULL;
 318         }
 319 }
 320
 321 void
 322 nv40_grctx_vals_load(struct drm_device *dev, struct nouveau_gpuobj *ctx)
 323 {
 324         struct drm_nouveau_private *dev_priv = dev->dev_private;
 325         struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph;
 326         struct nouveau_ctxvals *cv = pgraph->ctxvals;
 327         int i;
 328
 329         if (!cv)
 330                 return;
 331
 332         for (i = 0; i < cv->length; i++)
 333                 nv_wo32(dev, ctx, cv->data[i].offset, cv->data[i].value);
 334 }
 335
 336 /*
 337  * G70          0x47
 338  * G71          0x49
 339  * NV45         0x48
 340  * G72[M]       0x46
 341  * G73          0x4b
 342  * C51_G7X      0x4c
 343  * C51          0x4e
 344  */
 345 int
 346 nv40_graph_init(struct drm_device *dev)
 347 {
 348         struct drm_nouveau_private *dev_priv =
 349                 (struct drm_nouveau_private *)dev->dev_private;
 350         uint32_t vramsz, tmp;
 351         int i, j;
 352
 353         nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) &
 354                         ~NV_PMC_ENABLE_PGRAPH);
 355         nv_wr32(dev, NV03_PMC_ENABLE, nv_rd32(dev, NV03_PMC_ENABLE) |
 356                          NV_PMC_ENABLE_PGRAPH);
 357
 358         nv40_grctx_init(dev);
 359
 360         /* No context present currently */
 361         nv_wr32(dev, NV40_PGRAPH_CTXCTL_CUR, 0x00000000);
 362
 363         nv_wr32(dev, NV03_PGRAPH_INTR   , 0xFFFFFFFF);
 364         nv_wr32(dev, NV40_PGRAPH_INTR_EN, 0xFFFFFFFF);
 365
 366         nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF);
 367         nv_wr32(dev, NV04_PGRAPH_DEBUG_0, 0x00000000);
 368         nv_wr32(dev, NV04_PGRAPH_DEBUG_1, 0x401287c0);
 369         nv_wr32(dev, NV04_PGRAPH_DEBUG_3, 0xe0de8055);
 370         nv_wr32(dev, NV10_PGRAPH_DEBUG_4, 0x00008000);
 371         nv_wr32(dev, NV04_PGRAPH_LIMIT_VIOL_PIX, 0x00be3c5f);
 372
 373         nv_wr32(dev, NV10_PGRAPH_CTX_CONTROL, 0x10010100);
 374         nv_wr32(dev, NV10_PGRAPH_STATE      , 0xFFFFFFFF);
 375
 376         j = nv_rd32(dev, 0x1540) & 0xff;
 377         if (j) {
 378                 for (i = 0; !(j & 1); j >>= 1, i++)
 379                         ;
 380                 nv_wr32(dev, 0x405000, i);
 381         }
 382
 383         if (dev_priv->chipset == 0x40) {
 384                 nv_wr32(dev, 0x4009b0, 0x83280fff);
 385                 nv_wr32(dev, 0x4009b4, 0x000000a0);
 386         } else {
 387                 nv_wr32(dev, 0x400820, 0x83280eff);
 388                 nv_wr32(dev, 0x400824, 0x000000a0);
 389         }
 390
 391         switch (dev_priv->chipset) {
 392         case 0x40:
 393         case 0x45:
 394                 nv_wr32(dev, 0x4009b8, 0x0078e366);
 395                 nv_wr32(dev, 0x4009bc, 0x0000014c);
 396                 break;
 397         case 0x41:
 398         case 0x42: /* pciid also 0x00Cx */
 399         /* case 0x0120: XXX (pciid) */
 400                 nv_wr32(dev, 0x400828, 0x007596ff);
 401                 nv_wr32(dev, 0x40082c, 0x00000108);
 402                 break;
 403         case 0x43:
 404                 nv_wr32(dev, 0x400828, 0x0072cb77);
 405                 nv_wr32(dev, 0x40082c, 0x00000108);
 406                 break;
 407         case 0x44:
 408         case 0x46: /* G72 */
 409         case 0x4a:
 410         case 0x4c: /* G7x-based C51 */
 411         case 0x4e:
 412                 nv_wr32(dev, 0x400860, 0);
 413                 nv_wr32(dev, 0x400864, 0);
 414                 break;
 415         case 0x47: /* G70 */
 416         case 0x49: /* G71 */
 417         case 0x4b: /* G73 */
 418                 nv_wr32(dev, 0x400828, 0x07830610);
 419                 nv_wr32(dev, 0x40082c, 0x0000016A);
 420                 break;
 421         default:
 422                 break;
 423         }
 424
 425         nv_wr32(dev, 0x400b38, 0x2ffff800);
 426         nv_wr32(dev, 0x400b3c, 0x00006000);
 427
 428         /* copy tile info from PFB */
 429         switch (dev_priv->chipset) {
 430         case 0x40: /* vanilla NV40 */
 431                 for (i = 0; i < NV10_PFB_TILE__SIZE; i++) {
 432                         tmp = nv_rd32(dev, NV10_PFB_TILE(i));
 433                         nv_wr32(dev, NV40_PGRAPH_TILE0(i), tmp);
 434                         nv_wr32(dev, NV40_PGRAPH_TILE1(i), tmp);
 435                         tmp = nv_rd32(dev, NV10_PFB_TLIMIT(i));
 436                         nv_wr32(dev, NV40_PGRAPH_TLIMIT0(i), tmp);
 437                         nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), tmp);
 438                         tmp = nv_rd32(dev, NV10_PFB_TSIZE(i));
 439                         nv_wr32(dev, NV40_PGRAPH_TSIZE0(i), tmp);
 440                         nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), tmp);
 441                         tmp = nv_rd32(dev, NV10_PFB_TSTATUS(i));
 442                         nv_wr32(dev, NV40_PGRAPH_TSTATUS0(i), tmp);
 443                         nv_wr32(dev, NV40_PGRAPH_TSTATUS1(i), tmp);
 444                 }
 445                 break;
 446         case 0x44:
 447         case 0x4a:
 448         case 0x4e: /* NV44-based cores don't have 0x406900? */
 449                 for (i = 0; i < NV40_PFB_TILE__SIZE_0; i++) {
 450                         tmp = nv_rd32(dev, NV40_PFB_TILE(i));
 451                         nv_wr32(dev, NV40_PGRAPH_TILE0(i), tmp);
 452                         tmp = nv_rd32(dev, NV40_PFB_TLIMIT(i));
 453                         nv_wr32(dev, NV40_PGRAPH_TLIMIT0(i), tmp);
 454                         tmp = nv_rd32(dev, NV40_PFB_TSIZE(i));
 455                         nv_wr32(dev, NV40_PGRAPH_TSIZE0(i), tmp);
 456                         tmp = nv_rd32(dev, NV40_PFB_TSTATUS(i));
 457                         nv_wr32(dev, NV40_PGRAPH_TSTATUS0(i), tmp);
 458                 }
 459                 break;
 460         case 0x46:
 461         case 0x47:
 462         case 0x49:
 463         case 0x4b: /* G7X-based cores */
 464                 for (i = 0; i < NV40_PFB_TILE__SIZE_1; i++) {
 465                         tmp = nv_rd32(dev, NV40_PFB_TILE(i));
 466                         nv_wr32(dev, NV47_PGRAPH_TILE0(i), tmp);
 467                         nv_wr32(dev, NV40_PGRAPH_TILE1(i), tmp);
 468                         tmp = nv_rd32(dev, NV40_PFB_TLIMIT(i));
 469                         nv_wr32(dev, NV47_PGRAPH_TLIMIT0(i), tmp);
 470                         nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), tmp);
 471                         tmp = nv_rd32(dev, NV40_PFB_TSIZE(i));
 472                         nv_wr32(dev, NV47_PGRAPH_TSIZE0(i), tmp);
 473                         nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), tmp);
 474                         tmp = nv_rd32(dev, NV40_PFB_TSTATUS(i));
 475                         nv_wr32(dev, NV47_PGRAPH_TSTATUS0(i), tmp);
 476                         nv_wr32(dev, NV40_PGRAPH_TSTATUS1(i), tmp);
 477                 }
 478                 break;
 479         default: /* everything else */
 480                 for (i = 0; i < NV40_PFB_TILE__SIZE_0; i++) {
 481                         tmp = nv_rd32(dev, NV40_PFB_TILE(i));
 482                         nv_wr32(dev, NV40_PGRAPH_TILE0(i), tmp);
 483                         nv_wr32(dev, NV40_PGRAPH_TILE1(i), tmp);
 484                         tmp = nv_rd32(dev, NV40_PFB_TLIMIT(i));
 485                         nv_wr32(dev, NV40_PGRAPH_TLIMIT0(i), tmp);
 486                         nv_wr32(dev, NV40_PGRAPH_TLIMIT1(i), tmp);
 487                         tmp = nv_rd32(dev, NV40_PFB_TSIZE(i));
 488                         nv_wr32(dev, NV40_PGRAPH_TSIZE0(i), tmp);
 489                         nv_wr32(dev, NV40_PGRAPH_TSIZE1(i), tmp);
 490                         tmp = nv_rd32(dev, NV40_PFB_TSTATUS(i));
 491                         nv_wr32(dev, NV40_PGRAPH_TSTATUS0(i), tmp);
 492                         nv_wr32(dev, NV40_PGRAPH_TSTATUS1(i), tmp);
 493                 }
 494                 break;
 495         }
 496
 497         /* begin RAM config */
 498         vramsz = drm_get_resource_len(dev, 0) - 1;
 499         switch (dev_priv->chipset) {
 500         case 0x40:
 501                 nv_wr32(dev, 0x4009A4, nv_rd32(dev, NV04_PFB_CFG0));
 502                 nv_wr32(dev, 0x4009A8, nv_rd32(dev, NV04_PFB_CFG1));
 503                 nv_wr32(dev, 0x4069A4, nv_rd32(dev, NV04_PFB_CFG0));
 504                 nv_wr32(dev, 0x4069A8, nv_rd32(dev, NV04_PFB_CFG1));
 505                 nv_wr32(dev, 0x400820, 0);
 506                 nv_wr32(dev, 0x400824, 0);
 507                 nv_wr32(dev, 0x400864, vramsz);
 508                 nv_wr32(dev, 0x400868, vramsz);
 509                 break;
 510         default:
 511                 switch (dev_priv->chipset) {
 512                 case 0x46:
 513                 case 0x47:
 514                 case 0x49:
 515                 case 0x4b:
 516                         nv_wr32(dev, 0x400DF0, nv_rd32(dev, NV04_PFB_CFG0));
 517                         nv_wr32(dev, 0x400DF4, nv_rd32(dev, NV04_PFB_CFG1));
 518                         break;
 519                 default:
 520                         nv_wr32(dev, 0x4009F0, nv_rd32(dev, NV04_PFB_CFG0));
 521                         nv_wr32(dev, 0x4009F4, nv_rd32(dev, NV04_PFB_CFG1));
 522                         break;
 523                 }
 524                 nv_wr32(dev, 0x4069F0, nv_rd32(dev, NV04_PFB_CFG0));
 525                 nv_wr32(dev, 0x4069F4, nv_rd32(dev, NV04_PFB_CFG1));
 526                 nv_wr32(dev, 0x400840, 0);
 527                 nv_wr32(dev, 0x400844, 0);
 528                 nv_wr32(dev, 0x4008A0, vramsz);
 529                 nv_wr32(dev, 0x4008A4, vramsz);
 530                 break;
 531         }
 532
 533         return 0;
 534 }
 535
 536 void nv40_graph_takedown(struct drm_device *dev)
 537 {
 538 }
 539
 540 struct nouveau_pgraph_object_class nv40_graph_grclass[] = {
 541         { 0x0030, false, NULL }, /* null */
 542         { 0x0039, false, NULL }, /* m2mf */
 543         { 0x004a, false, NULL }, /* gdirect */
 544         { 0x009f, false, NULL }, /* imageblit (nv12) */
 545         { 0x008a, false, NULL }, /* ifc */
 546         { 0x0089, false, NULL }, /* sifm */
 547         { 0x3089, false, NULL }, /* sifm (nv40) */
 548         { 0x0062, false, NULL }, /* surf2d */
 549         { 0x3062, false, NULL }, /* surf2d (nv40) */
 550         { 0x0043, false, NULL }, /* rop */
 551         { 0x0012, false, NULL }, /* beta1 */
 552         { 0x0072, false, NULL }, /* beta4 */
 553         { 0x0019, false, NULL }, /* cliprect */
 554         { 0x0044, false, NULL }, /* pattern */
 555         { 0x309e, false, NULL }, /* swzsurf */
 556         { 0x4097, false, NULL }, /* curie (nv40) */
 557         { 0x4497, false, NULL }, /* curie (nv44) */
 558         {}
 559 };
 560