git.oblomov.eu Git - linux-2.6/blob - drivers/video/riva/riva_hw.c

   1  /***************************************************************************\
   2 |*                                                                           *|
   3 |*       Copyright 1993-1999 NVIDIA, Corporation.  All rights reserved.      *|
   4 |*                                                                           *|
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   7 |*     hereby granted a nonexclusive,  royalty-free copyright license to     *|
   8 |*     use this code in individual and commercial software.                  *|
   9 |*                                                                           *|
  10 |*     Any use of this source code must include,  in the user documenta-     *|
  11 |*     tion and  internal comments to the code,  notices to the end user     *|
  12 |*     as follows:                                                           *|
  13 |*                                                                           *|
  14 |*       Copyright 1993-1999 NVIDIA, Corporation.  All rights reserved.      *|
  15 |*                                                                           *|
  16 |*     NVIDIA, CORPORATION MAKES NO REPRESENTATION ABOUT THE SUITABILITY     *|
  17 |*     OF  THIS SOURCE  CODE  FOR ANY PURPOSE.  IT IS  PROVIDED  "AS IS"     *|
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  19 |*     ATION DISCLAIMS ALL WARRANTIES  WITH REGARD  TO THIS SOURCE CODE,     *|
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  26 |*     OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOURCE CODE.     *|
  27 |*                                                                           *|
  28 |*     U.S. Government  End  Users.   This source code  is a "commercial     *|
  29 |*     item,"  as that  term is  defined at  48 C.F.R. 2.101 (OCT 1995),     *|
  30 |*     consisting  of "commercial  computer  software"  and  "commercial     *|
  31 |*     computer  software  documentation,"  as such  terms  are  used in     *|
  32 |*     48 C.F.R. 12.212 (SEPT 1995)  and is provided to the U.S. Govern-     *|
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  34 |*     12.212 and  48 C.F.R. 227.7202-1 through  227.7202-4 (JUNE 1995),     *|
  35 |*     all U.S. Government End Users  acquire the source code  with only     *|
  36 |*     those rights set forth herein.                                        *|
  37 |*                                                                           *|
  38  \***************************************************************************/
  39
  40 /*
  41  * GPL licensing note -- nVidia is allowing a liberal interpretation of
  42  * the documentation restriction above, to merely say that this nVidia's
  43  * copyright and disclaimer should be included with all code derived
  44  * from this source.  -- Jeff Garzik <jgarzik@pobox.com>, 01/Nov/99
  45  */
  46
  47 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/riva_hw.c,v 1.33 2002/08/05 20:47:06 mvojkovi Exp $ */
  48
  49 #include <linux/kernel.h>
  50 #include <linux/pci.h>
  51 #include <linux/pci_ids.h>
  52 #include "riva_hw.h"
  53 #include "riva_tbl.h"
  54 #include "nv_type.h"
  55
  56 /*
  57  * This file is an OS-agnostic file used to make RIVA 128 and RIVA TNT
  58  * operate identically (except TNT has more memory and better 3D quality.
  59  */
  60 static int nv3Busy
  61 (
  62     RIVA_HW_INST *chip
  63 )
  64 {
  65     return ((NV_RD32(&chip->Rop->FifoFree, 0) < chip->FifoEmptyCount) ||
  66             NV_RD32(&chip->PGRAPH[0x000006B0/4], 0) & 0x01);
  67 }
  68 static int nv4Busy
  69 (
  70     RIVA_HW_INST *chip
  71 )
  72 {
  73     return ((NV_RD32(&chip->Rop->FifoFree, 0) < chip->FifoEmptyCount) ||
  74             NV_RD32(&chip->PGRAPH[0x00000700/4], 0) & 0x01);
  75 }
  76 static int nv10Busy
  77 (
  78     RIVA_HW_INST *chip
  79 )
  80 {
  81     return ((NV_RD32(&chip->Rop->FifoFree, 0) < chip->FifoEmptyCount) ||
  82             NV_RD32(&chip->PGRAPH[0x00000700/4], 0) & 0x01);
  83 }
  84
  85 static void vgaLockUnlock
  86 (
  87     RIVA_HW_INST *chip,
  88     int           Lock
  89 )
  90 {
  91     U008 cr11;
  92     VGA_WR08(chip->PCIO, 0x3D4, 0x11);
  93     cr11 = VGA_RD08(chip->PCIO, 0x3D5);
  94     if(Lock) cr11 |= 0x80;
  95     else cr11 &= ~0x80;
  96     VGA_WR08(chip->PCIO, 0x3D5, cr11);
  97 }
  98 static void nv3LockUnlock
  99 (
 100     RIVA_HW_INST *chip,
 101     int           Lock
 102 )
 103 {
 104     VGA_WR08(chip->PVIO, 0x3C4, 0x06);
 105     VGA_WR08(chip->PVIO, 0x3C5, Lock ? 0x99 : 0x57);
 106     vgaLockUnlock(chip, Lock);
 107 }
 108 static void nv4LockUnlock
 109 (
 110     RIVA_HW_INST *chip,
 111     int           Lock
 112 )
 113 {
 114     VGA_WR08(chip->PCIO, 0x3D4, 0x1F);
 115     VGA_WR08(chip->PCIO, 0x3D5, Lock ? 0x99 : 0x57);
 116     vgaLockUnlock(chip, Lock);
 117 }
 118
 119 static int ShowHideCursor
 120 (
 121     RIVA_HW_INST *chip,
 122     int           ShowHide
 123 )
 124 {
 125     int cursor;
 126     cursor                      =  chip->CurrentState->cursor1;
 127     chip->CurrentState->cursor1 = (chip->CurrentState->cursor1 & 0xFE) |
 128                                   (ShowHide & 0x01);
 129     VGA_WR08(chip->PCIO, 0x3D4, 0x31);
 130     VGA_WR08(chip->PCIO, 0x3D5, chip->CurrentState->cursor1);
 131     return (cursor & 0x01);
 132 }
 133
 134 /****************************************************************************\
 135 *                                                                            *
 136 * The video arbitration routines calculate some "magic" numbers.  Fixes      *
 137 * the snow seen when accessing the framebuffer without it.                   *
 138 * It just works (I hope).                                                    *
 139 *                                                                            *
 140 \****************************************************************************/
 141
 142 #define DEFAULT_GR_LWM 100
 143 #define DEFAULT_VID_LWM 100
 144 #define DEFAULT_GR_BURST_SIZE 256
 145 #define DEFAULT_VID_BURST_SIZE 128
 146 #define VIDEO           0
 147 #define GRAPHICS        1
 148 #define MPORT           2
 149 #define ENGINE          3
 150 #define GFIFO_SIZE      320
 151 #define GFIFO_SIZE_128  256
 152 #define MFIFO_SIZE      120
 153 #define VFIFO_SIZE      256
 154
 155 typedef struct {
 156   int gdrain_rate;
 157   int vdrain_rate;
 158   int mdrain_rate;
 159   int gburst_size;
 160   int vburst_size;
 161   char vid_en;
 162   char gr_en;
 163   int wcmocc, wcgocc, wcvocc, wcvlwm, wcglwm;
 164   int by_gfacc;
 165   char vid_only_once;
 166   char gr_only_once;
 167   char first_vacc;
 168   char first_gacc;
 169   char first_macc;
 170   int vocc;
 171   int gocc;
 172   int mocc;
 173   char cur;
 174   char engine_en;
 175   char converged;
 176   int priority;
 177 } nv3_arb_info;
 178 typedef struct {
 179   int graphics_lwm;
 180   int video_lwm;
 181   int graphics_burst_size;
 182   int video_burst_size;
 183   int graphics_hi_priority;
 184   int media_hi_priority;
 185   int rtl_values;
 186   int valid;
 187 } nv3_fifo_info;
 188 typedef struct {
 189   char pix_bpp;
 190   char enable_video;
 191   char gr_during_vid;
 192   char enable_mp;
 193   int memory_width;
 194   int video_scale;
 195   int pclk_khz;
 196   int mclk_khz;
 197   int mem_page_miss;
 198   int mem_latency;
 199   char mem_aligned;
 200 } nv3_sim_state;
 201 typedef struct {
 202   int graphics_lwm;
 203   int video_lwm;
 204   int graphics_burst_size;
 205   int video_burst_size;
 206   int valid;
 207 } nv4_fifo_info;
 208 typedef struct {
 209   int pclk_khz;
 210   int mclk_khz;
 211   int nvclk_khz;
 212   char mem_page_miss;
 213   char mem_latency;
 214   int memory_width;
 215   char enable_video;
 216   char gr_during_vid;
 217   char pix_bpp;
 218   char mem_aligned;
 219   char enable_mp;
 220 } nv4_sim_state;
 221 typedef struct {
 222   int graphics_lwm;
 223   int video_lwm;
 224   int graphics_burst_size;
 225   int video_burst_size;
 226   int valid;
 227 } nv10_fifo_info;
 228 typedef struct {
 229   int pclk_khz;
 230   int mclk_khz;
 231   int nvclk_khz;
 232   char mem_page_miss;
 233   char mem_latency;
 234   int memory_type;
 235   int memory_width;
 236   char enable_video;
 237   char gr_during_vid;
 238   char pix_bpp;
 239   char mem_aligned;
 240   char enable_mp;
 241 } nv10_sim_state;
 242 static int nv3_iterate(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_arb_info *ainfo)
 243 {
 244     int iter = 0;
 245     int tmp;
 246     int vfsize, mfsize, gfsize;
 247     int mburst_size = 32;
 248     int mmisses, gmisses, vmisses;
 249     int misses;
 250     int vlwm, glwm, mlwm;
 251     int last, next, cur;
 252     int max_gfsize ;
 253     long ns;
 254
 255     vlwm = 0;
 256     glwm = 0;
 257     mlwm = 0;
 258     vfsize = 0;
 259     gfsize = 0;
 260     cur = ainfo->cur;
 261     mmisses = 2;
 262     gmisses = 2;
 263     vmisses = 2;
 264     if (ainfo->gburst_size == 128) max_gfsize = GFIFO_SIZE_128;
 265     else  max_gfsize = GFIFO_SIZE;
 266     max_gfsize = GFIFO_SIZE;
 267     while (1)
 268     {
 269         if (ainfo->vid_en)
 270         {
 271             if (ainfo->wcvocc > ainfo->vocc) ainfo->wcvocc = ainfo->vocc;
 272             if (ainfo->wcvlwm > vlwm) ainfo->wcvlwm = vlwm ;
 273             ns = 1000000 * ainfo->vburst_size/(state->memory_width/8)/state->mclk_khz;
 274             vfsize = ns * ainfo->vdrain_rate / 1000000;
 275             vfsize =  ainfo->wcvlwm - ainfo->vburst_size + vfsize;
 276         }
 277         if (state->enable_mp)
 278         {
 279             if (ainfo->wcmocc > ainfo->mocc) ainfo->wcmocc = ainfo->mocc;
 280         }
 281         if (ainfo->gr_en)
 282         {
 283             if (ainfo->wcglwm > glwm) ainfo->wcglwm = glwm ;
 284             if (ainfo->wcgocc > ainfo->gocc) ainfo->wcgocc = ainfo->gocc;
 285             ns = 1000000 * (ainfo->gburst_size/(state->memory_width/8))/state->mclk_khz;
 286             gfsize = (ns * (long) ainfo->gdrain_rate)/1000000;
 287             gfsize = ainfo->wcglwm - ainfo->gburst_size + gfsize;
 288         }
 289         mfsize = 0;
 290         if (!state->gr_during_vid && ainfo->vid_en)
 291             if (ainfo->vid_en && (ainfo->vocc < 0) && !ainfo->vid_only_once)
 292                 next = VIDEO;
 293             else if (ainfo->mocc < 0)
 294                 next = MPORT;
 295             else if (ainfo->gocc< ainfo->by_gfacc)
 296                 next = GRAPHICS;
 297             else return (0);
 298         else switch (ainfo->priority)
 299             {
 300                 case VIDEO:
 301                     if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
 302                         next = VIDEO;
 303                     else if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
 304                         next = GRAPHICS;
 305                     else if (ainfo->mocc<0)
 306                         next = MPORT;
 307                     else    return (0);
 308                     break;
 309                 case GRAPHICS:
 310                     if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
 311                         next = GRAPHICS;
 312                     else if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
 313                         next = VIDEO;
 314                     else if (ainfo->mocc<0)
 315                         next = MPORT;
 316                     else    return (0);
 317                     break;
 318                 default:
 319                     if (ainfo->mocc<0)
 320                         next = MPORT;
 321                     else if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
 322                         next = GRAPHICS;
 323                     else if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
 324                         next = VIDEO;
 325                     else    return (0);
 326                     break;
 327             }
 328         last = cur;
 329         cur = next;
 330         iter++;
 331         switch (cur)
 332         {
 333             case VIDEO:
 334                 if (last==cur)    misses = 0;
 335                 else if (ainfo->first_vacc)   misses = vmisses;
 336                 else    misses = 1;
 337                 ainfo->first_vacc = 0;
 338                 if (last!=cur)
 339                 {
 340                     ns =  1000000 * (vmisses*state->mem_page_miss + state->mem_latency)/state->mclk_khz;
 341                     vlwm = ns * ainfo->vdrain_rate/ 1000000;
 342                     vlwm = ainfo->vocc - vlwm;
 343                 }
 344                 ns = 1000000*(misses*state->mem_page_miss + ainfo->vburst_size)/(state->memory_width/8)/state->mclk_khz;
 345                 ainfo->vocc = ainfo->vocc + ainfo->vburst_size - ns*ainfo->vdrain_rate/1000000;
 346                 ainfo->gocc = ainfo->gocc - ns*ainfo->gdrain_rate/1000000;
 347                 ainfo->mocc = ainfo->mocc - ns*ainfo->mdrain_rate/1000000;
 348                 break;
 349             case GRAPHICS:
 350                 if (last==cur)    misses = 0;
 351                 else if (ainfo->first_gacc)   misses = gmisses;
 352                 else    misses = 1;
 353                 ainfo->first_gacc = 0;
 354                 if (last!=cur)
 355                 {
 356                     ns = 1000000*(gmisses*state->mem_page_miss + state->mem_latency)/state->mclk_khz ;
 357                     glwm = ns * ainfo->gdrain_rate/1000000;
 358                     glwm = ainfo->gocc - glwm;
 359                 }
 360                 ns = 1000000*(misses*state->mem_page_miss + ainfo->gburst_size/(state->memory_width/8))/state->mclk_khz;
 361                 ainfo->vocc = ainfo->vocc + 0 - ns*ainfo->vdrain_rate/1000000;
 362                 ainfo->gocc = ainfo->gocc + ainfo->gburst_size - ns*ainfo->gdrain_rate/1000000;
 363                 ainfo->mocc = ainfo->mocc + 0 - ns*ainfo->mdrain_rate/1000000;
 364                 break;
 365             default:
 366                 if (last==cur)    misses = 0;
 367                 else if (ainfo->first_macc)   misses = mmisses;
 368                 else    misses = 1;
 369                 ainfo->first_macc = 0;
 370                 ns = 1000000*(misses*state->mem_page_miss + mburst_size/(state->memory_width/8))/state->mclk_khz;
 371                 ainfo->vocc = ainfo->vocc + 0 - ns*ainfo->vdrain_rate/1000000;
 372                 ainfo->gocc = ainfo->gocc + 0 - ns*ainfo->gdrain_rate/1000000;
 373                 ainfo->mocc = ainfo->mocc + mburst_size - ns*ainfo->mdrain_rate/1000000;
 374                 break;
 375         }
 376         if (iter>100)
 377         {
 378             ainfo->converged = 0;
 379             return (1);
 380         }
 381         ns = 1000000*ainfo->gburst_size/(state->memory_width/8)/state->mclk_khz;
 382         tmp = ns * ainfo->gdrain_rate/1000000;
 383         if (abs(ainfo->gburst_size) + ((abs(ainfo->wcglwm) + 16 ) & ~0x7) - tmp > max_gfsize)
 384         {
 385             ainfo->converged = 0;
 386             return (1);
 387         }
 388         ns = 1000000*ainfo->vburst_size/(state->memory_width/8)/state->mclk_khz;
 389         tmp = ns * ainfo->vdrain_rate/1000000;
 390         if (abs(ainfo->vburst_size) + (abs(ainfo->wcvlwm + 32) & ~0xf)  - tmp> VFIFO_SIZE)
 391         {
 392             ainfo->converged = 0;
 393             return (1);
 394         }
 395         if (abs(ainfo->gocc) > max_gfsize)
 396         {
 397             ainfo->converged = 0;
 398             return (1);
 399         }
 400         if (abs(ainfo->vocc) > VFIFO_SIZE)
 401         {
 402             ainfo->converged = 0;
 403             return (1);
 404         }
 405         if (abs(ainfo->mocc) > MFIFO_SIZE)
 406         {
 407             ainfo->converged = 0;
 408             return (1);
 409         }
 410         if (abs(vfsize) > VFIFO_SIZE)
 411         {
 412             ainfo->converged = 0;
 413             return (1);
 414         }
 415         if (abs(gfsize) > max_gfsize)
 416         {
 417             ainfo->converged = 0;
 418             return (1);
 419         }
 420         if (abs(mfsize) > MFIFO_SIZE)
 421         {
 422             ainfo->converged = 0;
 423             return (1);
 424         }
 425     }
 426 }
 427 static char nv3_arb(nv3_fifo_info * res_info, nv3_sim_state * state,  nv3_arb_info *ainfo)
 428 {
 429     long ens, vns, mns, gns;
 430     int mmisses, gmisses, vmisses, eburst_size, mburst_size;
 431     int refresh_cycle;
 432
 433     refresh_cycle = 0;
 434     refresh_cycle = 2*(state->mclk_khz/state->pclk_khz) + 5;
 435     mmisses = 2;
 436     if (state->mem_aligned) gmisses = 2;
 437     else    gmisses = 3;
 438     vmisses = 2;
 439     eburst_size = state->memory_width * 1;
 440     mburst_size = 32;
 441     gns = 1000000 * (gmisses*state->mem_page_miss + state->mem_latency)/state->mclk_khz;
 442     ainfo->by_gfacc = gns*ainfo->gdrain_rate/1000000;
 443     ainfo->wcmocc = 0;
 444     ainfo->wcgocc = 0;
 445     ainfo->wcvocc = 0;
 446     ainfo->wcvlwm = 0;
 447     ainfo->wcglwm = 0;
 448     ainfo->engine_en = 1;
 449     ainfo->converged = 1;
 450     if (ainfo->engine_en)
 451     {
 452         ens =  1000000*(state->mem_page_miss + eburst_size/(state->memory_width/8) +refresh_cycle)/state->mclk_khz;
 453         ainfo->mocc = state->enable_mp ? 0-ens*ainfo->mdrain_rate/1000000 : 0;
 454         ainfo->vocc = ainfo->vid_en ? 0-ens*ainfo->vdrain_rate/1000000 : 0;
 455         ainfo->gocc = ainfo->gr_en ? 0-ens*ainfo->gdrain_rate/1000000 : 0;
 456         ainfo->cur = ENGINE;
 457         ainfo->first_vacc = 1;
 458         ainfo->first_gacc = 1;
 459         ainfo->first_macc = 1;
 460         nv3_iterate(res_info, state,ainfo);
 461     }
 462     if (state->enable_mp)
 463     {
 464         mns = 1000000 * (mmisses*state->mem_page_miss + mburst_size/(state->memory_width/8) + refresh_cycle)/state->mclk_khz;
 465         ainfo->mocc = state->enable_mp ? 0 : mburst_size - mns*ainfo->mdrain_rate/1000000;
 466         ainfo->vocc = ainfo->vid_en ? 0 : 0- mns*ainfo->vdrain_rate/1000000;
 467         ainfo->gocc = ainfo->gr_en ? 0: 0- mns*ainfo->gdrain_rate/1000000;
 468         ainfo->cur = MPORT;
 469         ainfo->first_vacc = 1;
 470         ainfo->first_gacc = 1;
 471         ainfo->first_macc = 0;
 472         nv3_iterate(res_info, state,ainfo);
 473     }
 474     if (ainfo->gr_en)
 475     {
 476         ainfo->first_vacc = 1;
 477         ainfo->first_gacc = 0;
 478         ainfo->first_macc = 1;
 479         gns = 1000000*(gmisses*state->mem_page_miss + ainfo->gburst_size/(state->memory_width/8) + refresh_cycle)/state->mclk_khz;
 480         ainfo->gocc = ainfo->gburst_size - gns*ainfo->gdrain_rate/1000000;
 481         ainfo->vocc = ainfo->vid_en? 0-gns*ainfo->vdrain_rate/1000000 : 0;
 482         ainfo->mocc = state->enable_mp ?  0-gns*ainfo->mdrain_rate/1000000: 0;
 483         ainfo->cur = GRAPHICS;
 484         nv3_iterate(res_info, state,ainfo);
 485     }
 486     if (ainfo->vid_en)
 487     {
 488         ainfo->first_vacc = 0;
 489         ainfo->first_gacc = 1;
 490         ainfo->first_macc = 1;
 491         vns = 1000000*(vmisses*state->mem_page_miss + ainfo->vburst_size/(state->memory_width/8) + refresh_cycle)/state->mclk_khz;
 492         ainfo->vocc = ainfo->vburst_size - vns*ainfo->vdrain_rate/1000000;
 493         ainfo->gocc = ainfo->gr_en? (0-vns*ainfo->gdrain_rate/1000000) : 0;
 494         ainfo->mocc = state->enable_mp? 0-vns*ainfo->mdrain_rate/1000000 :0 ;
 495         ainfo->cur = VIDEO;
 496         nv3_iterate(res_info, state, ainfo);
 497     }
 498     if (ainfo->converged)
 499     {
 500         res_info->graphics_lwm = (int)abs(ainfo->wcglwm) + 16;
 501         res_info->video_lwm = (int)abs(ainfo->wcvlwm) + 32;
 502         res_info->graphics_burst_size = ainfo->gburst_size;
 503         res_info->video_burst_size = ainfo->vburst_size;
 504         res_info->graphics_hi_priority = (ainfo->priority == GRAPHICS);
 505         res_info->media_hi_priority = (ainfo->priority == MPORT);
 506         if (res_info->video_lwm > 160)
 507         {
 508             res_info->graphics_lwm = 256;
 509             res_info->video_lwm = 128;
 510             res_info->graphics_burst_size = 64;
 511             res_info->video_burst_size = 64;
 512             res_info->graphics_hi_priority = 0;
 513             res_info->media_hi_priority = 0;
 514             ainfo->converged = 0;
 515             return (0);
 516         }
 517         if (res_info->video_lwm > 128)
 518         {
 519             res_info->video_lwm = 128;
 520         }
 521         return (1);
 522     }
 523     else
 524     {
 525         res_info->graphics_lwm = 256;
 526         res_info->video_lwm = 128;
 527         res_info->graphics_burst_size = 64;
 528         res_info->video_burst_size = 64;
 529         res_info->graphics_hi_priority = 0;
 530         res_info->media_hi_priority = 0;
 531         return (0);
 532     }
 533 }
 534 static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_arb_info *ainfo)
 535 {
 536     int done, g,v, p;
 537
 538     done = 0;
 539     for (p=0; p < 2; p++)
 540     {
 541         for (g=128 ; g > 32; g= g>> 1)
 542         {
 543             for (v=128; v >=32; v = v>> 1)
 544             {
 545                 ainfo->priority = p;
 546                 ainfo->gburst_size = g;
 547                 ainfo->vburst_size = v;
 548                 done = nv3_arb(res_info, state,ainfo);
 549                 if (done && (g==128))
 550                     if ((res_info->graphics_lwm + g) > 256)
 551                         done = 0;
 552                 if (done)
 553                     goto Done;
 554             }
 555         }
 556     }
 557
 558  Done:
 559     return done;
 560 }
 561 static void nv3CalcArbitration
 562 (
 563     nv3_fifo_info * res_info,
 564     nv3_sim_state * state
 565 )
 566 {
 567     nv3_fifo_info save_info;
 568     nv3_arb_info ainfo;
 569     char   res_gr, res_vid;
 570
 571     ainfo.gr_en = 1;
 572     ainfo.vid_en = state->enable_video;
 573     ainfo.vid_only_once = 0;
 574     ainfo.gr_only_once = 0;
 575     ainfo.gdrain_rate = (int) state->pclk_khz * (state->pix_bpp/8);
 576     ainfo.vdrain_rate = (int) state->pclk_khz * 2;
 577     if (state->video_scale != 0)
 578         ainfo.vdrain_rate = ainfo.vdrain_rate/state->video_scale;
 579     ainfo.mdrain_rate = 33000;
 580     res_info->rtl_values = 0;
 581     if (!state->gr_during_vid && state->enable_video)
 582     {
 583         ainfo.gr_only_once = 1;
 584         ainfo.gr_en = 1;
 585         ainfo.gdrain_rate = 0;
 586         res_vid = nv3_get_param(res_info, state,  &ainfo);
 587         res_vid = ainfo.converged;
 588         save_info.video_lwm = res_info->video_lwm;
 589         save_info.video_burst_size = res_info->video_burst_size;
 590         ainfo.vid_en = 1;
 591         ainfo.vid_only_once = 1;
 592         ainfo.gr_en = 1;
 593         ainfo.gdrain_rate = (int) state->pclk_khz * (state->pix_bpp/8);
 594         ainfo.vdrain_rate = 0;
 595         res_gr = nv3_get_param(res_info, state,  &ainfo);
 596         res_gr = ainfo.converged;
 597         res_info->video_lwm = save_info.video_lwm;
 598         res_info->video_burst_size = save_info.video_burst_size;
 599         res_info->valid = res_gr & res_vid;
 600     }
 601     else
 602     {
 603         if (!ainfo.gr_en) ainfo.gdrain_rate = 0;
 604         if (!ainfo.vid_en) ainfo.vdrain_rate = 0;
 605         res_gr = nv3_get_param(res_info, state,  &ainfo);
 606         res_info->valid = ainfo.converged;
 607     }
 608 }
 609 static void nv3UpdateArbitrationSettings
 610 (
 611     unsigned      VClk,
 612     unsigned      pixelDepth,
 613     unsigned     *burst,
 614     unsigned     *lwm,
 615     RIVA_HW_INST *chip
 616 )
 617 {
 618     nv3_fifo_info fifo_data;
 619     nv3_sim_state sim_data;
 620     unsigned int M, N, P, pll, MClk;
 621
 622     pll = NV_RD32(&chip->PRAMDAC0[0x00000504/4], 0);
 623     M = (pll >> 0) & 0xFF; N = (pll >> 8) & 0xFF; P = (pll >> 16) & 0x0F;
 624     MClk = (N * chip->CrystalFreqKHz / M) >> P;
 625     sim_data.pix_bpp        = (char)pixelDepth;
 626     sim_data.enable_video   = 0;
 627     sim_data.enable_mp      = 0;
 628     sim_data.video_scale    = 1;
 629     sim_data.memory_width   = (NV_RD32(&chip->PEXTDEV[0x00000000/4], 0) & 0x10) ?
 630         128 : 64;
 631     sim_data.memory_width   = 128;
 632
 633     sim_data.mem_latency    = 9;
 634     sim_data.mem_aligned    = 1;
 635     sim_data.mem_page_miss  = 11;
 636     sim_data.gr_during_vid  = 0;
 637     sim_data.pclk_khz       = VClk;
 638     sim_data.mclk_khz       = MClk;
 639     nv3CalcArbitration(&fifo_data, &sim_data);
 640     if (fifo_data.valid)
 641     {
 642         int  b = fifo_data.graphics_burst_size >> 4;
 643         *burst = 0;
 644         while (b >>= 1)
 645             (*burst)++;
 646         *lwm   = fifo_data.graphics_lwm >> 3;
 647     }
 648     else
 649     {
 650         *lwm   = 0x24;
 651         *burst = 0x2;
 652     }
 653 }
 654 static void nv4CalcArbitration
 655 (
 656     nv4_fifo_info *fifo,
 657     nv4_sim_state *arb
 658 )
 659 {
 660     int data, pagemiss, cas,width, video_enable, color_key_enable, bpp, align;
 661     int nvclks, mclks, pclks, vpagemiss, crtpagemiss, vbs;
 662     int found, mclk_extra, mclk_loop, cbs, m1, p1;
 663     int mclk_freq, pclk_freq, nvclk_freq, mp_enable;
 664     int us_m, us_n, us_p, video_drain_rate, crtc_drain_rate;
 665     int vpm_us, us_video, vlwm, video_fill_us, cpm_us, us_crt,clwm;
 666     int craw, vraw;
 667
 668     fifo->valid = 1;
 669     pclk_freq = arb->pclk_khz;
 670     mclk_freq = arb->mclk_khz;
 671     nvclk_freq = arb->nvclk_khz;
 672     pagemiss = arb->mem_page_miss;
 673     cas = arb->mem_latency;
 674     width = arb->memory_width >> 6;
 675     video_enable = arb->enable_video;
 676     color_key_enable = arb->gr_during_vid;
 677     bpp = arb->pix_bpp;
 678     align = arb->mem_aligned;
 679     mp_enable = arb->enable_mp;
 680     clwm = 0;
 681     vlwm = 0;
 682     cbs = 128;
 683     pclks = 2;
 684     nvclks = 2;
 685     nvclks += 2;
 686     nvclks += 1;
 687     mclks = 5;
 688     mclks += 3;
 689     mclks += 1;
 690     mclks += cas;
 691     mclks += 1;
 692     mclks += 1;
 693     mclks += 1;
 694     mclks += 1;
 695     mclk_extra = 3;
 696     nvclks += 2;
 697     nvclks += 1;
 698     nvclks += 1;
 699     nvclks += 1;
 700     if (mp_enable)
 701         mclks+=4;
 702     nvclks += 0;
 703     pclks += 0;
 704     found = 0;
 705     vbs = 0;
 706     while (found != 1)
 707     {
 708         fifo->valid = 1;
 709         found = 1;
 710         mclk_loop = mclks+mclk_extra;
 711         us_m = mclk_loop *1000*1000 / mclk_freq;
 712         us_n = nvclks*1000*1000 / nvclk_freq;
 713         us_p = nvclks*1000*1000 / pclk_freq;
 714         if (video_enable)
 715         {
 716             video_drain_rate = pclk_freq * 2;
 717             crtc_drain_rate = pclk_freq * bpp/8;
 718             vpagemiss = 2;
 719             vpagemiss += 1;
 720             crtpagemiss = 2;
 721             vpm_us = (vpagemiss * pagemiss)*1000*1000/mclk_freq;
 722             if (nvclk_freq * 2 > mclk_freq * width)
 723                 video_fill_us = cbs*1000*1000 / 16 / nvclk_freq ;
 724             else
 725                 video_fill_us = cbs*1000*1000 / (8 * width) / mclk_freq;
 726             us_video = vpm_us + us_m + us_n + us_p + video_fill_us;
 727             vlwm = us_video * video_drain_rate/(1000*1000);
 728             vlwm++;
 729             vbs = 128;
 730             if (vlwm > 128) vbs = 64;
 731             if (vlwm > (256-64)) vbs = 32;
 732             if (nvclk_freq * 2 > mclk_freq * width)
 733                 video_fill_us = vbs *1000*1000/ 16 / nvclk_freq ;
 734             else
 735                 video_fill_us = vbs*1000*1000 / (8 * width) / mclk_freq;
 736             cpm_us = crtpagemiss  * pagemiss *1000*1000/ mclk_freq;
 737             us_crt =
 738             us_video
 739             +video_fill_us
 740             +cpm_us
 741             +us_m + us_n +us_p
 742             ;
 743             clwm = us_crt * crtc_drain_rate/(1000*1000);
 744             clwm++;
 745         }
 746         else
 747         {
 748             crtc_drain_rate = pclk_freq * bpp/8;
 749             crtpagemiss = 2;
 750             crtpagemiss += 1;
 751             cpm_us = crtpagemiss  * pagemiss *1000*1000/ mclk_freq;
 752             us_crt =  cpm_us + us_m + us_n + us_p ;
 753             clwm = us_crt * crtc_drain_rate/(1000*1000);
 754             clwm++;
 755         }
 756         m1 = clwm + cbs - 512;
 757         p1 = m1 * pclk_freq / mclk_freq;
 758         p1 = p1 * bpp / 8;
 759         if ((p1 < m1) && (m1 > 0))
 760         {
 761             fifo->valid = 0;
 762             found = 0;
 763             if (mclk_extra ==0)   found = 1;
 764             mclk_extra--;
 765         }
 766         else if (video_enable)
 767         {
 768             if ((clwm > 511) || (vlwm > 255))
 769             {
 770                 fifo->valid = 0;
 771                 found = 0;
 772                 if (mclk_extra ==0)   found = 1;
 773                 mclk_extra--;
 774             }
 775         }
 776         else
 777         {
 778             if (clwm > 519)
 779             {
 780                 fifo->valid = 0;
 781                 found = 0;
 782                 if (mclk_extra ==0)   found = 1;
 783                 mclk_extra--;
 784             }
 785         }
 786         craw = clwm;
 787         vraw = vlwm;
 788         if (clwm < 384) clwm = 384;
 789         if (vlwm < 128) vlwm = 128;
 790         data = (int)(clwm);
 791         fifo->graphics_lwm = data;
 792         fifo->graphics_burst_size = 128;
 793         data = (int)((vlwm+15));
 794         fifo->video_lwm = data;
 795         fifo->video_burst_size = vbs;
 796     }
 797 }
 798 static void nv4UpdateArbitrationSettings
 799 (
 800     unsigned      VClk,
 801     unsigned      pixelDepth,
 802     unsigned     *burst,
 803     unsigned     *lwm,
 804     RIVA_HW_INST *chip
 805 )
 806 {
 807     nv4_fifo_info fifo_data;
 808     nv4_sim_state sim_data;
 809     unsigned int M, N, P, pll, MClk, NVClk, cfg1;
 810
 811     pll = NV_RD32(&chip->PRAMDAC0[0x00000504/4], 0);
 812     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
 813     MClk  = (N * chip->CrystalFreqKHz / M) >> P;
 814     pll = NV_RD32(&chip->PRAMDAC0[0x00000500/4], 0);
 815     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
 816     NVClk  = (N * chip->CrystalFreqKHz / M) >> P;
 817     cfg1 = NV_RD32(&chip->PFB[0x00000204/4], 0);
 818     sim_data.pix_bpp        = (char)pixelDepth;
 819     sim_data.enable_video   = 0;
 820     sim_data.enable_mp      = 0;
 821     sim_data.memory_width   = (NV_RD32(&chip->PEXTDEV[0x00000000/4], 0) & 0x10) ?
 822         128 : 64;
 823     sim_data.mem_latency    = (char)cfg1 & 0x0F;
 824     sim_data.mem_aligned    = 1;
 825     sim_data.mem_page_miss  = (char)(((cfg1 >> 4) &0x0F) + ((cfg1 >> 31) & 0x01));
 826     sim_data.gr_during_vid  = 0;
 827     sim_data.pclk_khz       = VClk;
 828     sim_data.mclk_khz       = MClk;
 829     sim_data.nvclk_khz      = NVClk;
 830     nv4CalcArbitration(&fifo_data, &sim_data);
 831     if (fifo_data.valid)
 832     {
 833         int  b = fifo_data.graphics_burst_size >> 4;
 834         *burst = 0;
 835         while (b >>= 1)
 836             (*burst)++;
 837         *lwm   = fifo_data.graphics_lwm >> 3;
 838     }
 839 }
 840 static void nv10CalcArbitration
 841 (
 842     nv10_fifo_info *fifo,
 843     nv10_sim_state *arb
 844 )
 845 {
 846     int data, pagemiss, cas,width, video_enable, color_key_enable, bpp, align;
 847     int nvclks, mclks, pclks, vpagemiss, crtpagemiss, vbs;
 848     int nvclk_fill, us_extra;
 849     int found, mclk_extra, mclk_loop, cbs, m1;
 850     int mclk_freq, pclk_freq, nvclk_freq, mp_enable;
 851     int us_m, us_m_min, us_n, us_p, video_drain_rate, crtc_drain_rate;
 852     int vus_m, vus_n, vus_p;
 853     int vpm_us, us_video, vlwm, cpm_us, us_crt,clwm;
 854     int clwm_rnd_down;
 855     int craw, m2us, us_pipe, us_pipe_min, vus_pipe, p1clk, p2;
 856     int pclks_2_top_fifo, min_mclk_extra;
 857     int us_min_mclk_extra;
 858
 859     fifo->valid = 1;
 860     pclk_freq = arb->pclk_khz; /* freq in KHz */
 861     mclk_freq = arb->mclk_khz;
 862     nvclk_freq = arb->nvclk_khz;
 863     pagemiss = arb->mem_page_miss;
 864     cas = arb->mem_latency;
 865     width = arb->memory_width/64;
 866     video_enable = arb->enable_video;
 867     color_key_enable = arb->gr_during_vid;
 868     bpp = arb->pix_bpp;
 869     align = arb->mem_aligned;
 870     mp_enable = arb->enable_mp;
 871     clwm = 0;
 872     vlwm = 1024;
 873
 874     cbs = 512;
 875     vbs = 512;
 876
 877     pclks = 4; /* lwm detect. */
 878
 879     nvclks = 3; /* lwm -> sync. */
 880     nvclks += 2; /* fbi bus cycles (1 req + 1 busy) */
 881
 882     mclks  = 1;   /* 2 edge sync.  may be very close to edge so just put one. */
 883
 884     mclks += 1;   /* arb_hp_req */
 885     mclks += 5;   /* ap_hp_req   tiling pipeline */
 886
 887     mclks += 2;    /* tc_req     latency fifo */
 888     mclks += 2;    /* fb_cas_n_  memory request to fbio block */
 889     mclks += 7;    /* sm_d_rdv   data returned from fbio block */
 890
 891     /* fb.rd.d.Put_gc   need to accumulate 256 bits for read */
 892     if (arb->memory_type == 0)
 893       if (arb->memory_width == 64) /* 64 bit bus */
 894         mclks += 4;
 895       else
 896         mclks += 2;
 897     else
 898       if (arb->memory_width == 64) /* 64 bit bus */
 899         mclks += 2;
 900       else
 901         mclks += 1;
 902
 903     if ((!video_enable) && (arb->memory_width == 128))
 904     {
 905       mclk_extra = (bpp == 32) ? 31 : 42; /* Margin of error */
 906       min_mclk_extra = 17;
 907     }
 908     else
 909     {
 910       mclk_extra = (bpp == 32) ? 8 : 4; /* Margin of error */
 911       /* mclk_extra = 4; */ /* Margin of error */
 912       min_mclk_extra = 18;
 913     }
 914
 915     nvclks += 1; /* 2 edge sync.  may be very close to edge so just put one. */
 916     nvclks += 1; /* fbi_d_rdv_n */
 917     nvclks += 1; /* Fbi_d_rdata */
 918     nvclks += 1; /* crtfifo load */
 919
 920     if(mp_enable)
 921       mclks+=4; /* Mp can get in with a burst of 8. */
 922     /* Extra clocks determined by heuristics */
 923
 924     nvclks += 0;
 925     pclks += 0;
 926     found = 0;
 927     while(found != 1) {
 928       fifo->valid = 1;
 929       found = 1;
 930       mclk_loop = mclks+mclk_extra;
 931       us_m = mclk_loop *1000*1000 / mclk_freq; /* Mclk latency in us */
 932       us_m_min = mclks * 1000*1000 / mclk_freq; /* Minimum Mclk latency in us */
 933       us_min_mclk_extra = min_mclk_extra *1000*1000 / mclk_freq;
 934       us_n = nvclks*1000*1000 / nvclk_freq;/* nvclk latency in us */
 935       us_p = pclks*1000*1000 / pclk_freq;/* nvclk latency in us */
 936       us_pipe = us_m + us_n + us_p;
 937       us_pipe_min = us_m_min + us_n + us_p;
 938       us_extra = 0;
 939
 940       vus_m = mclk_loop *1000*1000 / mclk_freq; /* Mclk latency in us */
 941       vus_n = (4)*1000*1000 / nvclk_freq;/* nvclk latency in us */
 942       vus_p = 0*1000*1000 / pclk_freq;/* pclk latency in us */
 943       vus_pipe = vus_m + vus_n + vus_p;
 944
 945       if(video_enable) {
 946         video_drain_rate = pclk_freq * 4; /* MB/s */
 947         crtc_drain_rate = pclk_freq * bpp/8; /* MB/s */
 948
 949         vpagemiss = 1; /* self generating page miss */
 950         vpagemiss += 1; /* One higher priority before */
 951
 952         crtpagemiss = 2; /* self generating page miss */
 953         if(mp_enable)
 954             crtpagemiss += 1; /* if MA0 conflict */
 955
 956         vpm_us = (vpagemiss * pagemiss)*1000*1000/mclk_freq;
 957
 958         us_video = vpm_us + vus_m; /* Video has separate read return path */
 959
 960         cpm_us = crtpagemiss  * pagemiss *1000*1000/ mclk_freq;
 961         us_crt =
 962           us_video  /* Wait for video */
 963           +cpm_us /* CRT Page miss */
 964           +us_m + us_n +us_p /* other latency */
 965           ;
 966
 967         clwm = us_crt * crtc_drain_rate/(1000*1000);
 968         clwm++; /* fixed point <= float_point - 1.  Fixes that */
 969       } else {
 970         crtc_drain_rate = pclk_freq * bpp/8; /* bpp * pclk/8 */
 971
 972         crtpagemiss = 1; /* self generating page miss */
 973         crtpagemiss += 1; /* MA0 page miss */
 974         if(mp_enable)
 975             crtpagemiss += 1; /* if MA0 conflict */
 976         cpm_us = crtpagemiss  * pagemiss *1000*1000/ mclk_freq;
 977         us_crt =  cpm_us + us_m + us_n + us_p ;
 978         clwm = us_crt * crtc_drain_rate/(1000*1000);
 979         clwm++; /* fixed point <= float_point - 1.  Fixes that */
 980
 981   /*
 982           //
 983           // Another concern, only for high pclks so don't do this
 984           // with video:
 985           // What happens if the latency to fetch the cbs is so large that
 986           // fifo empties.  In that case we need to have an alternate clwm value
 987           // based off the total burst fetch
 988           //
 989           us_crt = (cbs * 1000 * 1000)/ (8*width)/mclk_freq ;
 990           us_crt = us_crt + us_m + us_n + us_p + (4 * 1000 * 1000)/mclk_freq;
 991           clwm_mt = us_crt * crtc_drain_rate/(1000*1000);
 992           clwm_mt ++;
 993           if(clwm_mt > clwm)
 994               clwm = clwm_mt;
 995   */
 996           /* Finally, a heuristic check when width == 64 bits */
 997           if(width == 1){
 998               nvclk_fill = nvclk_freq * 8;
 999               if(crtc_drain_rate * 100 >= nvclk_fill * 102)
1000                       clwm = 0xfff; /*Large number to fail */
1001
1002               else if(crtc_drain_rate * 100  >= nvclk_fill * 98) {
1003                   clwm = 1024;
1004                   cbs = 512;
1005                   us_extra = (cbs * 1000 * 1000)/ (8*width)/mclk_freq ;
1006               }
1007           }
1008       }
1009
1010
1011       /*
1012         Overfill check:
1013
1014         */
1015
1016       clwm_rnd_down = ((int)clwm/8)*8;
1017       if (clwm_rnd_down < clwm)
1018           clwm += 8;
1019
1020       m1 = clwm + cbs -  1024; /* Amount of overfill */
1021       m2us = us_pipe_min + us_min_mclk_extra;
1022       pclks_2_top_fifo = (1024-clwm)/(8*width);
1023
1024       /* pclk cycles to drain */
1025       p1clk = m2us * pclk_freq/(1000*1000);
1026       p2 = p1clk * bpp / 8; /* bytes drained. */
1027
1028       if((p2 < m1) && (m1 > 0)) {
1029           fifo->valid = 0;
1030           found = 0;
1031           if(min_mclk_extra == 0)   {
1032             if(cbs <= 32) {
1033               found = 1; /* Can't adjust anymore! */
1034             } else {
1035               cbs = cbs/2;  /* reduce the burst size */
1036             }
1037           } else {
1038             min_mclk_extra--;
1039           }
1040       } else {
1041         if (clwm > 1023){ /* Have some margin */
1042           fifo->valid = 0;
1043           found = 0;
1044           if(min_mclk_extra == 0)
1045               found = 1; /* Can't adjust anymore! */
1046           else
1047               min_mclk_extra--;
1048         }
1049       }
1050       craw = clwm;
1051
1052       if(clwm < (1024-cbs+8)) clwm = 1024-cbs+8;
1053       data = (int)(clwm);
1054       /*  printf("CRT LWM: %f bytes, prog: 0x%x, bs: 256\n", clwm, data ); */
1055       fifo->graphics_lwm = data;   fifo->graphics_burst_size = cbs;
1056
1057       /*  printf("VID LWM: %f bytes, prog: 0x%x, bs: %d\n, ", vlwm, data, vbs ); */
1058       fifo->video_lwm = 1024;  fifo->video_burst_size = 512;
1059     }
1060 }
1061 static void nv10UpdateArbitrationSettings
1062 (
1063     unsigned      VClk,
1064     unsigned      pixelDepth,
1065     unsigned     *burst,
1066     unsigned     *lwm,
1067     RIVA_HW_INST *chip
1068 )
1069 {
1070     nv10_fifo_info fifo_data;
1071     nv10_sim_state sim_data;
1072     unsigned int M, N, P, pll, MClk, NVClk, cfg1;
1073
1074     pll = NV_RD32(&chip->PRAMDAC0[0x00000504/4], 0);
1075     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
1076     MClk  = (N * chip->CrystalFreqKHz / M) >> P;
1077     pll = NV_RD32(&chip->PRAMDAC0[0x00000500/4], 0);
1078     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
1079     NVClk  = (N * chip->CrystalFreqKHz / M) >> P;
1080     cfg1 = NV_RD32(&chip->PFB[0x00000204/4], 0);
1081     sim_data.pix_bpp        = (char)pixelDepth;
1082     sim_data.enable_video   = 0;
1083     sim_data.enable_mp      = 0;
1084     sim_data.memory_type    = (NV_RD32(&chip->PFB[0x00000200/4], 0) & 0x01) ?
1085         1 : 0;
1086     sim_data.memory_width   = (NV_RD32(&chip->PEXTDEV[0x00000000/4], 0) & 0x10) ?
1087         128 : 64;
1088     sim_data.mem_latency    = (char)cfg1 & 0x0F;
1089     sim_data.mem_aligned    = 1;
1090     sim_data.mem_page_miss  = (char)(((cfg1 >> 4) &0x0F) + ((cfg1 >> 31) & 0x01));
1091     sim_data.gr_during_vid  = 0;
1092     sim_data.pclk_khz       = VClk;
1093     sim_data.mclk_khz       = MClk;
1094     sim_data.nvclk_khz      = NVClk;
1095     nv10CalcArbitration(&fifo_data, &sim_data);
1096     if (fifo_data.valid)
1097     {
1098         int  b = fifo_data.graphics_burst_size >> 4;
1099         *burst = 0;
1100         while (b >>= 1)
1101             (*burst)++;
1102         *lwm   = fifo_data.graphics_lwm >> 3;
1103     }
1104 }
1105
1106 static void nForceUpdateArbitrationSettings
1107 (
1108     unsigned      VClk,
1109     unsigned      pixelDepth,
1110     unsigned     *burst,
1111     unsigned     *lwm,
1112     RIVA_HW_INST *chip
1113 )
1114 {
1115     nv10_fifo_info fifo_data;
1116     nv10_sim_state sim_data;
1117     unsigned int M, N, P, pll, MClk, NVClk;
1118     unsigned int uMClkPostDiv;
1119     struct pci_dev *dev;
1120
1121     dev = pci_find_slot(0, 3);
1122     pci_read_config_dword(dev, 0x6C, &uMClkPostDiv);
1123     uMClkPostDiv = (uMClkPostDiv >> 8) & 0xf;
1124
1125     if(!uMClkPostDiv) uMClkPostDiv = 4;
1126     MClk = 400000 / uMClkPostDiv;
1127
1128     pll = NV_RD32(&chip->PRAMDAC0[0x00000500/4], 0);
1129     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
1130     NVClk  = (N * chip->CrystalFreqKHz / M) >> P;
1131     sim_data.pix_bpp        = (char)pixelDepth;
1132     sim_data.enable_video   = 0;
1133     sim_data.enable_mp      = 0;
1134
1135     dev = pci_find_slot(0, 1);
1136     pci_read_config_dword(dev, 0x7C, &sim_data.memory_type);
1137     sim_data.memory_type    = (sim_data.memory_type >> 12) & 1;
1138
1139     sim_data.memory_width   = 64;
1140     sim_data.mem_latency    = 3;
1141     sim_data.mem_aligned    = 1;
1142     sim_data.mem_page_miss  = 10;
1143     sim_data.gr_during_vid  = 0;
1144     sim_data.pclk_khz       = VClk;
1145     sim_data.mclk_khz       = MClk;
1146     sim_data.nvclk_khz      = NVClk;
1147     nv10CalcArbitration(&fifo_data, &sim_data);
1148     if (fifo_data.valid)
1149     {
1150         int  b = fifo_data.graphics_burst_size >> 4;
1151         *burst = 0;
1152         while (b >>= 1)
1153             (*burst)++;
1154         *lwm   = fifo_data.graphics_lwm >> 3;
1155     }
1156 }
1157
1158 /****************************************************************************\
1159 *                                                                            *
1160 *                          RIVA Mode State Routines                          *
1161 *                                                                            *
1162 \****************************************************************************/
1163
1164 /*
1165  * Calculate the Video Clock parameters for the PLL.
1166  */
1167 static int CalcVClock
1168 (
1169     int           clockIn,
1170     int          *clockOut,
1171     int          *mOut,
1172     int          *nOut,
1173     int          *pOut,
1174     RIVA_HW_INST *chip
1175 )
1176 {
1177     unsigned lowM, highM, highP;
1178     unsigned DeltaNew, DeltaOld;
1179     unsigned VClk, Freq;
1180     unsigned M, N, P;
1181
1182     DeltaOld = 0xFFFFFFFF;
1183
1184     VClk     = (unsigned)clockIn;
1185
1186     if (chip->CrystalFreqKHz == 13500)
1187     {
1188         lowM  = 7;
1189         highM = 13 - (chip->Architecture == NV_ARCH_03);
1190     }
1191     else
1192     {
1193         lowM  = 8;
1194         highM = 14 - (chip->Architecture == NV_ARCH_03);
1195     }
1196
1197     highP = 4 - (chip->Architecture == NV_ARCH_03);
1198     for (P = 0; P <= highP; P ++)
1199     {
1200         Freq = VClk << P;
1201         if ((Freq >= 128000) && (Freq <= chip->MaxVClockFreqKHz))
1202         {
1203             for (M = lowM; M <= highM; M++)
1204             {
1205                 N    = (VClk << P) * M / chip->CrystalFreqKHz;
1206                 if(N <= 255) {
1207                 Freq = (chip->CrystalFreqKHz * N / M) >> P;
1208                 if (Freq > VClk)
1209                     DeltaNew = Freq - VClk;
1210                 else
1211                     DeltaNew = VClk - Freq;
1212                 if (DeltaNew < DeltaOld)
1213                 {
1214                     *mOut     = M;
1215                     *nOut     = N;
1216                     *pOut     = P;
1217                     *clockOut = Freq;
1218                     DeltaOld  = DeltaNew;
1219                 }
1220             }
1221         }
1222     }
1223     }
1224     return (DeltaOld != 0xFFFFFFFF);
1225 }
1226 /*
1227  * Calculate extended mode parameters (SVGA) and save in a
1228  * mode state structure.
1229  */
1230 int CalcStateExt
1231 (
1232     RIVA_HW_INST  *chip,
1233     RIVA_HW_STATE *state,
1234     int            bpp,
1235     int            width,
1236     int            hDisplaySize,
1237     int            height,
1238     int            dotClock
1239 )
1240 {
1241     int pixelDepth, VClk, m, n, p;
1242     /*
1243      * Save mode parameters.
1244      */
1245     state->bpp    = bpp;    /* this is not bitsPerPixel, it's 8,15,16,32 */
1246     state->width  = width;
1247     state->height = height;
1248     /*
1249      * Extended RIVA registers.
1250      */
1251     pixelDepth = (bpp + 1)/8;
1252     if (!CalcVClock(dotClock, &VClk, &m, &n, &p, chip))
1253         return -EINVAL;
1254
1255     switch (chip->Architecture)
1256     {
1257         case NV_ARCH_03:
1258             nv3UpdateArbitrationSettings(VClk,
1259                                          pixelDepth * 8,
1260                                         &(state->arbitration0),
1261                                         &(state->arbitration1),
1262                                          chip);
1263             state->cursor0  = 0x00;
1264             state->cursor1  = 0x78;
1265             state->cursor2  = 0x00000000;
1266             state->pllsel   = 0x10010100;
1267             state->config   = ((width + 31)/32)
1268                             | (((pixelDepth > 2) ? 3 : pixelDepth) << 8)
1269                             | 0x1000;
1270             state->general  = 0x00100100;
1271             state->repaint1 = hDisplaySize < 1280 ? 0x06 : 0x02;
1272             break;
1273         case NV_ARCH_04:
1274             nv4UpdateArbitrationSettings(VClk,
1275                                          pixelDepth * 8,
1276                                         &(state->arbitration0),
1277                                         &(state->arbitration1),
1278                                          chip);
1279             state->cursor0  = 0x00;
1280             state->cursor1  = 0xFC;
1281             state->cursor2  = 0x00000000;
1282             state->pllsel   = 0x10000700;
1283             state->config   = 0x00001114;
1284             state->general  = bpp == 16 ? 0x00101100 : 0x00100100;
1285             state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
1286             break;
1287         case NV_ARCH_10:
1288         case NV_ARCH_20:
1289         case NV_ARCH_30:
1290             if((chip->Chipset == NV_CHIP_IGEFORCE2) ||
1291                (chip->Chipset == NV_CHIP_0x01F0))
1292             {
1293                 nForceUpdateArbitrationSettings(VClk,
1294                                           pixelDepth * 8,
1295                                          &(state->arbitration0),
1296                                          &(state->arbitration1),
1297                                           chip);
1298             } else {
1299                 nv10UpdateArbitrationSettings(VClk,
1300                                           pixelDepth * 8,
1301                                          &(state->arbitration0),
1302                                          &(state->arbitration1),
1303                                           chip);
1304             }
1305             state->cursor0  = 0x80 | (chip->CursorStart >> 17);
1306             state->cursor1  = (chip->CursorStart >> 11) << 2;
1307             state->cursor2  = chip->CursorStart >> 24;
1308             state->pllsel   = 0x10000700;
1309             state->config   = NV_RD32(&chip->PFB[0x00000200/4], 0);
1310             state->general  = bpp == 16 ? 0x00101100 : 0x00100100;
1311             state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
1312             break;
1313     }
1314
1315      /* Paul Richards: below if block borks things in kernel for some reason */
1316      /* Tony: Below is needed to set hardware in DirectColor */
1317     if((bpp != 8) && (chip->Architecture != NV_ARCH_03))
1318             state->general |= 0x00000030;
1319
1320     state->vpll     = (p << 16) | (n << 8) | m;
1321     state->repaint0 = (((width/8)*pixelDepth) & 0x700) >> 3;
1322     state->pixel    = pixelDepth > 2   ? 3    : pixelDepth;
1323     state->offset0  =
1324     state->offset1  =
1325     state->offset2  =
1326     state->offset3  = 0;
1327     state->pitch0   =
1328     state->pitch1   =
1329     state->pitch2   =
1330     state->pitch3   = pixelDepth * width;
1331
1332     return 0;
1333 }
1334 /*
1335  * Load fixed function state and pre-calculated/stored state.
1336  */
1337 #if 0
1338 #define LOAD_FIXED_STATE(tbl,dev)                                       \
1339     for (i = 0; i < sizeof(tbl##Table##dev)/8; i++)                 \
1340         chip->dev[tbl##Table##dev[i][0]] = tbl##Table##dev[i][1]
1341 #define LOAD_FIXED_STATE_8BPP(tbl,dev)                                  \
1342     for (i = 0; i < sizeof(tbl##Table##dev##_8BPP)/8; i++)            \
1343         chip->dev[tbl##Table##dev##_8BPP[i][0]] = tbl##Table##dev##_8BPP[i][1]
1344 #define LOAD_FIXED_STATE_15BPP(tbl,dev)                                 \
1345     for (i = 0; i < sizeof(tbl##Table##dev##_15BPP)/8; i++)           \
1346         chip->dev[tbl##Table##dev##_15BPP[i][0]] = tbl##Table##dev##_15BPP[i][1]
1347 #define LOAD_FIXED_STATE_16BPP(tbl,dev)                                 \
1348     for (i = 0; i < sizeof(tbl##Table##dev##_16BPP)/8; i++)           \
1349         chip->dev[tbl##Table##dev##_16BPP[i][0]] = tbl##Table##dev##_16BPP[i][1]
1350 #define LOAD_FIXED_STATE_32BPP(tbl,dev)                                 \
1351     for (i = 0; i < sizeof(tbl##Table##dev##_32BPP)/8; i++)           \
1352         chip->dev[tbl##Table##dev##_32BPP[i][0]] = tbl##Table##dev##_32BPP[i][1]
1353 #endif
1354
1355 #define LOAD_FIXED_STATE(tbl,dev)                                       \
1356     for (i = 0; i < sizeof(tbl##Table##dev)/8; i++)                 \
1357         NV_WR32(&chip->dev[tbl##Table##dev[i][0]], 0, tbl##Table##dev[i][1])
1358 #define LOAD_FIXED_STATE_8BPP(tbl,dev)                                  \
1359     for (i = 0; i < sizeof(tbl##Table##dev##_8BPP)/8; i++)            \
1360         NV_WR32(&chip->dev[tbl##Table##dev##_8BPP[i][0]], 0, tbl##Table##dev##_8BPP[i][1])
1361 #define LOAD_FIXED_STATE_15BPP(tbl,dev)                                 \
1362     for (i = 0; i < sizeof(tbl##Table##dev##_15BPP)/8; i++)           \
1363         NV_WR32(&chip->dev[tbl##Table##dev##_15BPP[i][0]], 0, tbl##Table##dev##_15BPP[i][1])
1364 #define LOAD_FIXED_STATE_16BPP(tbl,dev)                                 \
1365     for (i = 0; i < sizeof(tbl##Table##dev##_16BPP)/8; i++)           \
1366         NV_WR32(&chip->dev[tbl##Table##dev##_16BPP[i][0]], 0, tbl##Table##dev##_16BPP[i][1])
1367 #define LOAD_FIXED_STATE_32BPP(tbl,dev)                                 \
1368     for (i = 0; i < sizeof(tbl##Table##dev##_32BPP)/8; i++)           \
1369         NV_WR32(&chip->dev[tbl##Table##dev##_32BPP[i][0]], 0, tbl##Table##dev##_32BPP[i][1])
1370
1371 static void UpdateFifoState
1372 (
1373     RIVA_HW_INST  *chip
1374 )
1375 {
1376     int i;
1377
1378     switch (chip->Architecture)
1379     {
1380         case NV_ARCH_04:
1381             LOAD_FIXED_STATE(nv4,FIFO);
1382             chip->Tri03 = NULL;
1383             chip->Tri05 = (RivaTexturedTriangle05 __iomem *)&(chip->FIFO[0x0000E000/4]);
1384             break;
1385         case NV_ARCH_10:
1386         case NV_ARCH_20:
1387         case NV_ARCH_30:
1388             /*
1389              * Initialize state for the RivaTriangle3D05 routines.
1390              */
1391             LOAD_FIXED_STATE(nv10tri05,PGRAPH);
1392             LOAD_FIXED_STATE(nv10,FIFO);
1393             chip->Tri03 = NULL;
1394             chip->Tri05 = (RivaTexturedTriangle05 __iomem *)&(chip->FIFO[0x0000E000/4]);
1395             break;
1396     }
1397 }
1398 static void LoadStateExt
1399 (
1400     RIVA_HW_INST  *chip,
1401     RIVA_HW_STATE *state
1402 )
1403 {
1404     int i;
1405
1406     /*
1407      * Load HW fixed function state.
1408      */
1409     LOAD_FIXED_STATE(Riva,PMC);
1410     LOAD_FIXED_STATE(Riva,PTIMER);
1411     switch (chip->Architecture)
1412     {
1413         case NV_ARCH_03:
1414             /*
1415              * Make sure frame buffer config gets set before loading PRAMIN.
1416              */
1417             NV_WR32(chip->PFB, 0x00000200, state->config);
1418             LOAD_FIXED_STATE(nv3,PFIFO);
1419             LOAD_FIXED_STATE(nv3,PRAMIN);
1420             LOAD_FIXED_STATE(nv3,PGRAPH);
1421             switch (state->bpp)
1422             {
1423                 case 15:
1424                 case 16:
1425                     LOAD_FIXED_STATE_15BPP(nv3,PRAMIN);
1426                     LOAD_FIXED_STATE_15BPP(nv3,PGRAPH);
1427                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1428                     break;
1429                 case 24:
1430                 case 32:
1431                     LOAD_FIXED_STATE_32BPP(nv3,PRAMIN);
1432                     LOAD_FIXED_STATE_32BPP(nv3,PGRAPH);
1433                     chip->Tri03 = NULL;
1434                     break;
1435                 case 8:
1436                 default:
1437                     LOAD_FIXED_STATE_8BPP(nv3,PRAMIN);
1438                     LOAD_FIXED_STATE_8BPP(nv3,PGRAPH);
1439                     chip->Tri03 = NULL;
1440                     break;
1441             }
1442             for (i = 0x00000; i < 0x00800; i++)
1443                 NV_WR32(&chip->PRAMIN[0x00000502 + i], 0, (i << 12) | 0x03);
1444             NV_WR32(chip->PGRAPH, 0x00000630, state->offset0);
1445             NV_WR32(chip->PGRAPH, 0x00000634, state->offset1);
1446             NV_WR32(chip->PGRAPH, 0x00000638, state->offset2);
1447             NV_WR32(chip->PGRAPH, 0x0000063C, state->offset3);
1448             NV_WR32(chip->PGRAPH, 0x00000650, state->pitch0);
1449             NV_WR32(chip->PGRAPH, 0x00000654, state->pitch1);
1450             NV_WR32(chip->PGRAPH, 0x00000658, state->pitch2);
1451             NV_WR32(chip->PGRAPH, 0x0000065C, state->pitch3);
1452             break;
1453         case NV_ARCH_04:
1454             /*
1455              * Make sure frame buffer config gets set before loading PRAMIN.
1456              */
1457             NV_WR32(chip->PFB, 0x00000200, state->config);
1458             LOAD_FIXED_STATE(nv4,PFIFO);
1459             LOAD_FIXED_STATE(nv4,PRAMIN);
1460             LOAD_FIXED_STATE(nv4,PGRAPH);
1461             switch (state->bpp)
1462             {
1463                 case 15:
1464                     LOAD_FIXED_STATE_15BPP(nv4,PRAMIN);
1465                     LOAD_FIXED_STATE_15BPP(nv4,PGRAPH);
1466                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1467                     break;
1468                 case 16:
1469                     LOAD_FIXED_STATE_16BPP(nv4,PRAMIN);
1470                     LOAD_FIXED_STATE_16BPP(nv4,PGRAPH);
1471                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1472                     break;
1473                 case 24:
1474                 case 32:
1475                     LOAD_FIXED_STATE_32BPP(nv4,PRAMIN);
1476                     LOAD_FIXED_STATE_32BPP(nv4,PGRAPH);
1477                     chip->Tri03 = NULL;
1478                     break;
1479                 case 8:
1480                 default:
1481                     LOAD_FIXED_STATE_8BPP(nv4,PRAMIN);
1482                     LOAD_FIXED_STATE_8BPP(nv4,PGRAPH);
1483                     chip->Tri03 = NULL;
1484                     break;
1485             }
1486             NV_WR32(chip->PGRAPH, 0x00000640, state->offset0);
1487             NV_WR32(chip->PGRAPH, 0x00000644, state->offset1);
1488             NV_WR32(chip->PGRAPH, 0x00000648, state->offset2);
1489             NV_WR32(chip->PGRAPH, 0x0000064C, state->offset3);
1490             NV_WR32(chip->PGRAPH, 0x00000670, state->pitch0);
1491             NV_WR32(chip->PGRAPH, 0x00000674, state->pitch1);
1492             NV_WR32(chip->PGRAPH, 0x00000678, state->pitch2);
1493             NV_WR32(chip->PGRAPH, 0x0000067C, state->pitch3);
1494             break;
1495         case NV_ARCH_10:
1496         case NV_ARCH_20:
1497         case NV_ARCH_30:
1498             if(chip->twoHeads) {
1499                VGA_WR08(chip->PCIO, 0x03D4, 0x44);
1500                VGA_WR08(chip->PCIO, 0x03D5, state->crtcOwner);
1501                chip->LockUnlock(chip, 0);
1502             }
1503
1504             LOAD_FIXED_STATE(nv10,PFIFO);
1505             LOAD_FIXED_STATE(nv10,PRAMIN);
1506             LOAD_FIXED_STATE(nv10,PGRAPH);
1507             switch (state->bpp)
1508             {
1509                 case 15:
1510                     LOAD_FIXED_STATE_15BPP(nv10,PRAMIN);
1511                     LOAD_FIXED_STATE_15BPP(nv10,PGRAPH);
1512                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1513                     break;
1514                 case 16:
1515                     LOAD_FIXED_STATE_16BPP(nv10,PRAMIN);
1516                     LOAD_FIXED_STATE_16BPP(nv10,PGRAPH);
1517                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1518                     break;
1519                 case 24:
1520                 case 32:
1521                     LOAD_FIXED_STATE_32BPP(nv10,PRAMIN);
1522                     LOAD_FIXED_STATE_32BPP(nv10,PGRAPH);
1523                     chip->Tri03 = NULL;
1524                     break;
1525                 case 8:
1526                 default:
1527                     LOAD_FIXED_STATE_8BPP(nv10,PRAMIN);
1528                     LOAD_FIXED_STATE_8BPP(nv10,PGRAPH);
1529                     chip->Tri03 = NULL;
1530                     break;
1531             }
1532
1533             if(chip->Architecture == NV_ARCH_10) {
1534                 NV_WR32(chip->PGRAPH, 0x00000640, state->offset0);
1535                 NV_WR32(chip->PGRAPH, 0x00000644, state->offset1);
1536                 NV_WR32(chip->PGRAPH, 0x00000648, state->offset2);
1537                 NV_WR32(chip->PGRAPH, 0x0000064C, state->offset3);
1538                 NV_WR32(chip->PGRAPH, 0x00000670, state->pitch0);
1539                 NV_WR32(chip->PGRAPH, 0x00000674, state->pitch1);
1540                 NV_WR32(chip->PGRAPH, 0x00000678, state->pitch2);
1541                 NV_WR32(chip->PGRAPH, 0x0000067C, state->pitch3);
1542                 NV_WR32(chip->PGRAPH, 0x00000680, state->pitch3);
1543         } else {
1544         NV_WR32(chip->PGRAPH, 0x00000820, state->offset0);
1545         NV_WR32(chip->PGRAPH, 0x00000824, state->offset1);
1546         NV_WR32(chip->PGRAPH, 0x00000828, state->offset2);
1547         NV_WR32(chip->PGRAPH, 0x0000082C, state->offset3);
1548         NV_WR32(chip->PGRAPH, 0x00000850, state->pitch0);
1549         NV_WR32(chip->PGRAPH, 0x00000854, state->pitch1);
1550         NV_WR32(chip->PGRAPH, 0x00000858, state->pitch2);
1551         NV_WR32(chip->PGRAPH, 0x0000085C, state->pitch3);
1552         NV_WR32(chip->PGRAPH, 0x00000860, state->pitch3);
1553         NV_WR32(chip->PGRAPH, 0x00000864, state->pitch3);
1554         NV_WR32(chip->PGRAPH, 0x000009A4, NV_RD32(chip->PFB, 0x00000200));
1555         NV_WR32(chip->PGRAPH, 0x000009A8, NV_RD32(chip->PFB, 0x00000204));
1556         }
1557             if(chip->twoHeads) {
1558                NV_WR32(chip->PCRTC0, 0x00000860, state->head);
1559                NV_WR32(chip->PCRTC0, 0x00002860, state->head2);
1560             }
1561             NV_WR32(chip->PRAMDAC, 0x00000404, NV_RD32(chip->PRAMDAC, 0x00000404) | (1 << 25));
1562
1563             NV_WR32(chip->PMC, 0x00008704, 1);
1564             NV_WR32(chip->PMC, 0x00008140, 0);
1565             NV_WR32(chip->PMC, 0x00008920, 0);
1566             NV_WR32(chip->PMC, 0x00008924, 0);
1567             NV_WR32(chip->PMC, 0x00008908, 0x01ffffff);
1568             NV_WR32(chip->PMC, 0x0000890C, 0x01ffffff);
1569             NV_WR32(chip->PMC, 0x00001588, 0);
1570
1571             NV_WR32(chip->PFB, 0x00000240, 0);
1572             NV_WR32(chip->PFB, 0x00000250, 0);
1573             NV_WR32(chip->PFB, 0x00000260, 0);
1574             NV_WR32(chip->PFB, 0x00000270, 0);
1575             NV_WR32(chip->PFB, 0x00000280, 0);
1576             NV_WR32(chip->PFB, 0x00000290, 0);
1577             NV_WR32(chip->PFB, 0x000002A0, 0);
1578             NV_WR32(chip->PFB, 0x000002B0, 0);
1579
1580             NV_WR32(chip->PGRAPH, 0x00000B00, NV_RD32(chip->PFB, 0x00000240));
1581             NV_WR32(chip->PGRAPH, 0x00000B04, NV_RD32(chip->PFB, 0x00000244));
1582             NV_WR32(chip->PGRAPH, 0x00000B08, NV_RD32(chip->PFB, 0x00000248));
1583             NV_WR32(chip->PGRAPH, 0x00000B0C, NV_RD32(chip->PFB, 0x0000024C));
1584             NV_WR32(chip->PGRAPH, 0x00000B10, NV_RD32(chip->PFB, 0x00000250));
1585             NV_WR32(chip->PGRAPH, 0x00000B14, NV_RD32(chip->PFB, 0x00000254));
1586             NV_WR32(chip->PGRAPH, 0x00000B18, NV_RD32(chip->PFB, 0x00000258));
1587             NV_WR32(chip->PGRAPH, 0x00000B1C, NV_RD32(chip->PFB, 0x0000025C));
1588             NV_WR32(chip->PGRAPH, 0x00000B20, NV_RD32(chip->PFB, 0x00000260));
1589             NV_WR32(chip->PGRAPH, 0x00000B24, NV_RD32(chip->PFB, 0x00000264));
1590             NV_WR32(chip->PGRAPH, 0x00000B28, NV_RD32(chip->PFB, 0x00000268));
1591             NV_WR32(chip->PGRAPH, 0x00000B2C, NV_RD32(chip->PFB, 0x0000026C));
1592             NV_WR32(chip->PGRAPH, 0x00000B30, NV_RD32(chip->PFB, 0x00000270));
1593             NV_WR32(chip->PGRAPH, 0x00000B34, NV_RD32(chip->PFB, 0x00000274));
1594             NV_WR32(chip->PGRAPH, 0x00000B38, NV_RD32(chip->PFB, 0x00000278));
1595             NV_WR32(chip->PGRAPH, 0x00000B3C, NV_RD32(chip->PFB, 0x0000027C));
1596             NV_WR32(chip->PGRAPH, 0x00000B40, NV_RD32(chip->PFB, 0x00000280));
1597             NV_WR32(chip->PGRAPH, 0x00000B44, NV_RD32(chip->PFB, 0x00000284));
1598             NV_WR32(chip->PGRAPH, 0x00000B48, NV_RD32(chip->PFB, 0x00000288));
1599             NV_WR32(chip->PGRAPH, 0x00000B4C, NV_RD32(chip->PFB, 0x0000028C));
1600             NV_WR32(chip->PGRAPH, 0x00000B50, NV_RD32(chip->PFB, 0x00000290));
1601             NV_WR32(chip->PGRAPH, 0x00000B54, NV_RD32(chip->PFB, 0x00000294));
1602             NV_WR32(chip->PGRAPH, 0x00000B58, NV_RD32(chip->PFB, 0x00000298));
1603             NV_WR32(chip->PGRAPH, 0x00000B5C, NV_RD32(chip->PFB, 0x0000029C));
1604             NV_WR32(chip->PGRAPH, 0x00000B60, NV_RD32(chip->PFB, 0x000002A0));
1605             NV_WR32(chip->PGRAPH, 0x00000B64, NV_RD32(chip->PFB, 0x000002A4));
1606             NV_WR32(chip->PGRAPH, 0x00000B68, NV_RD32(chip->PFB, 0x000002A8));
1607             NV_WR32(chip->PGRAPH, 0x00000B6C, NV_RD32(chip->PFB, 0x000002AC));
1608             NV_WR32(chip->PGRAPH, 0x00000B70, NV_RD32(chip->PFB, 0x000002B0));
1609             NV_WR32(chip->PGRAPH, 0x00000B74, NV_RD32(chip->PFB, 0x000002B4));
1610             NV_WR32(chip->PGRAPH, 0x00000B78, NV_RD32(chip->PFB, 0x000002B8));
1611             NV_WR32(chip->PGRAPH, 0x00000B7C, NV_RD32(chip->PFB, 0x000002BC));
1612             NV_WR32(chip->PGRAPH, 0x00000F40, 0x10000000);
1613             NV_WR32(chip->PGRAPH, 0x00000F44, 0x00000000);
1614             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1615             NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000008);
1616             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000200);
1617             for (i = 0; i < (3*16); i++)
1618                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1619             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1620             NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1621             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000800);
1622             for (i = 0; i < (16*16); i++)
1623                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1624             NV_WR32(chip->PGRAPH, 0x00000F40, 0x30000000);
1625             NV_WR32(chip->PGRAPH, 0x00000F44, 0x00000004);
1626             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006400);
1627             for (i = 0; i < (59*4); i++)
1628                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1629             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006800);
1630             for (i = 0; i < (47*4); i++)
1631                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1632             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006C00);
1633             for (i = 0; i < (3*4); i++)
1634                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1635             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007000);
1636             for (i = 0; i < (19*4); i++)
1637                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1638             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007400);
1639             for (i = 0; i < (12*4); i++)
1640                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1641             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007800);
1642             for (i = 0; i < (12*4); i++)
1643                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1644             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00004400);
1645             for (i = 0; i < (8*4); i++)
1646                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1647             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000000);
1648             for (i = 0; i < 16; i++)
1649                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1650             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1651             for (i = 0; i < 4; i++)
1652                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1653
1654             NV_WR32(chip->PCRTC, 0x00000810, state->cursorConfig);
1655
1656             if(chip->flatPanel) {
1657                if((chip->Chipset & 0x0ff0) == 0x0110) {
1658                    NV_WR32(chip->PRAMDAC, 0x0528, state->dither);
1659                } else
1660                if((chip->Chipset & 0x0ff0) >= 0x0170) {
1661                    NV_WR32(chip->PRAMDAC, 0x083C, state->dither);
1662                }
1663
1664                VGA_WR08(chip->PCIO, 0x03D4, 0x53);
1665                VGA_WR08(chip->PCIO, 0x03D5, 0);
1666                VGA_WR08(chip->PCIO, 0x03D4, 0x54);
1667                VGA_WR08(chip->PCIO, 0x03D5, 0);
1668                VGA_WR08(chip->PCIO, 0x03D4, 0x21);
1669                VGA_WR08(chip->PCIO, 0x03D5, 0xfa);
1670             }
1671
1672             VGA_WR08(chip->PCIO, 0x03D4, 0x41);
1673             VGA_WR08(chip->PCIO, 0x03D5, state->extra);
1674     }
1675     LOAD_FIXED_STATE(Riva,FIFO);
1676     UpdateFifoState(chip);
1677     /*
1678      * Load HW mode state.
1679      */
1680     VGA_WR08(chip->PCIO, 0x03D4, 0x19);
1681     VGA_WR08(chip->PCIO, 0x03D5, state->repaint0);
1682     VGA_WR08(chip->PCIO, 0x03D4, 0x1A);
1683     VGA_WR08(chip->PCIO, 0x03D5, state->repaint1);
1684     VGA_WR08(chip->PCIO, 0x03D4, 0x25);
1685     VGA_WR08(chip->PCIO, 0x03D5, state->screen);
1686     VGA_WR08(chip->PCIO, 0x03D4, 0x28);
1687     VGA_WR08(chip->PCIO, 0x03D5, state->pixel);
1688     VGA_WR08(chip->PCIO, 0x03D4, 0x2D);
1689     VGA_WR08(chip->PCIO, 0x03D5, state->horiz);
1690     VGA_WR08(chip->PCIO, 0x03D4, 0x1B);
1691     VGA_WR08(chip->PCIO, 0x03D5, state->arbitration0);
1692     VGA_WR08(chip->PCIO, 0x03D4, 0x20);
1693     VGA_WR08(chip->PCIO, 0x03D5, state->arbitration1);
1694     VGA_WR08(chip->PCIO, 0x03D4, 0x30);
1695     VGA_WR08(chip->PCIO, 0x03D5, state->cursor0);
1696     VGA_WR08(chip->PCIO, 0x03D4, 0x31);
1697     VGA_WR08(chip->PCIO, 0x03D5, state->cursor1);
1698     VGA_WR08(chip->PCIO, 0x03D4, 0x2F);
1699     VGA_WR08(chip->PCIO, 0x03D5, state->cursor2);
1700     VGA_WR08(chip->PCIO, 0x03D4, 0x39);
1701     VGA_WR08(chip->PCIO, 0x03D5, state->interlace);
1702
1703     if(!chip->flatPanel) {
1704        NV_WR32(chip->PRAMDAC0, 0x00000508, state->vpll);
1705        NV_WR32(chip->PRAMDAC0, 0x0000050C, state->pllsel);
1706        if(chip->twoHeads)
1707           NV_WR32(chip->PRAMDAC0, 0x00000520, state->vpll2);
1708     }  else {
1709        NV_WR32(chip->PRAMDAC, 0x00000848 , state->scale);
1710     }
1711     NV_WR32(chip->PRAMDAC, 0x00000600 , state->general);
1712
1713     /*
1714      * Turn off VBlank enable and reset.
1715      */
1716     NV_WR32(chip->PCRTC, 0x00000140, 0);
1717     NV_WR32(chip->PCRTC, 0x00000100, chip->VBlankBit);
1718     /*
1719      * Set interrupt enable.
1720      */
1721     NV_WR32(chip->PMC, 0x00000140, chip->EnableIRQ & 0x01);
1722     /*
1723      * Set current state pointer.
1724      */
1725     chip->CurrentState = state;
1726     /*
1727      * Reset FIFO free and empty counts.
1728      */
1729     chip->FifoFreeCount  = 0;
1730     /* Free count from first subchannel */
1731     chip->FifoEmptyCount = NV_RD32(&chip->Rop->FifoFree, 0);
1732 }
1733 static void UnloadStateExt
1734 (
1735     RIVA_HW_INST  *chip,
1736     RIVA_HW_STATE *state
1737 )
1738 {
1739     /*
1740      * Save current HW state.
1741      */
1742     VGA_WR08(chip->PCIO, 0x03D4, 0x19);
1743     state->repaint0     = VGA_RD08(chip->PCIO, 0x03D5);
1744     VGA_WR08(chip->PCIO, 0x03D4, 0x1A);
1745     state->repaint1     = VGA_RD08(chip->PCIO, 0x03D5);
1746     VGA_WR08(chip->PCIO, 0x03D4, 0x25);
1747     state->screen       = VGA_RD08(chip->PCIO, 0x03D5);
1748     VGA_WR08(chip->PCIO, 0x03D4, 0x28);
1749     state->pixel        = VGA_RD08(chip->PCIO, 0x03D5);
1750     VGA_WR08(chip->PCIO, 0x03D4, 0x2D);
1751     state->horiz        = VGA_RD08(chip->PCIO, 0x03D5);
1752     VGA_WR08(chip->PCIO, 0x03D4, 0x1B);
1753     state->arbitration0 = VGA_RD08(chip->PCIO, 0x03D5);
1754     VGA_WR08(chip->PCIO, 0x03D4, 0x20);
1755     state->arbitration1 = VGA_RD08(chip->PCIO, 0x03D5);
1756     VGA_WR08(chip->PCIO, 0x03D4, 0x30);
1757     state->cursor0      = VGA_RD08(chip->PCIO, 0x03D5);
1758     VGA_WR08(chip->PCIO, 0x03D4, 0x31);
1759     state->cursor1      = VGA_RD08(chip->PCIO, 0x03D5);
1760     VGA_WR08(chip->PCIO, 0x03D4, 0x2F);
1761     state->cursor2      = VGA_RD08(chip->PCIO, 0x03D5);
1762     VGA_WR08(chip->PCIO, 0x03D4, 0x39);
1763     state->interlace    = VGA_RD08(chip->PCIO, 0x03D5);
1764     state->vpll         = NV_RD32(chip->PRAMDAC0, 0x00000508);
1765     state->vpll2        = NV_RD32(chip->PRAMDAC0, 0x00000520);
1766     state->pllsel       = NV_RD32(chip->PRAMDAC0, 0x0000050C);
1767     state->general      = NV_RD32(chip->PRAMDAC, 0x00000600);
1768     state->scale        = NV_RD32(chip->PRAMDAC, 0x00000848);
1769     state->config       = NV_RD32(chip->PFB, 0x00000200);
1770     switch (chip->Architecture)
1771     {
1772         case NV_ARCH_03:
1773             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000630);
1774             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000634);
1775             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000638);
1776             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000063C);
1777             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000650);
1778             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000654);
1779             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000658);
1780             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000065C);
1781             break;
1782         case NV_ARCH_04:
1783             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000640);
1784             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000644);
1785             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000648);
1786             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000064C);
1787             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000670);
1788             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000674);
1789             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000678);
1790             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000067C);
1791             break;
1792         case NV_ARCH_10:
1793         case NV_ARCH_20:
1794         case NV_ARCH_30:
1795             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000640);
1796             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000644);
1797             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000648);
1798             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000064C);
1799             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000670);
1800             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000674);
1801             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000678);
1802             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000067C);
1803             if(chip->twoHeads) {
1804                state->head     = NV_RD32(chip->PCRTC0, 0x00000860);
1805                state->head2    = NV_RD32(chip->PCRTC0, 0x00002860);
1806                VGA_WR08(chip->PCIO, 0x03D4, 0x44);
1807                state->crtcOwner = VGA_RD08(chip->PCIO, 0x03D5);
1808             }
1809             VGA_WR08(chip->PCIO, 0x03D4, 0x41);
1810             state->extra = VGA_RD08(chip->PCIO, 0x03D5);
1811             state->cursorConfig = NV_RD32(chip->PCRTC, 0x00000810);
1812
1813             if((chip->Chipset & 0x0ff0) == 0x0110) {
1814                 state->dither = NV_RD32(chip->PRAMDAC, 0x0528);
1815             } else
1816             if((chip->Chipset & 0x0ff0) >= 0x0170) {
1817                 state->dither = NV_RD32(chip->PRAMDAC, 0x083C);
1818             }
1819             break;
1820     }
1821 }
1822 static void SetStartAddress
1823 (
1824     RIVA_HW_INST *chip,
1825     unsigned      start
1826 )
1827 {
1828     NV_WR32(chip->PCRTC, 0x800, start);
1829 }
1830
1831 static void SetStartAddress3
1832 (
1833     RIVA_HW_INST *chip,
1834     unsigned      start
1835 )
1836 {
1837     int offset = start >> 2;
1838     int pan    = (start & 3) << 1;
1839     unsigned char tmp;
1840
1841     /*
1842      * Unlock extended registers.
1843      */
1844     chip->LockUnlock(chip, 0);
1845     /*
1846      * Set start address.
1847      */
1848     VGA_WR08(chip->PCIO, 0x3D4, 0x0D); VGA_WR08(chip->PCIO, 0x3D5, offset);
1849     offset >>= 8;
1850     VGA_WR08(chip->PCIO, 0x3D4, 0x0C); VGA_WR08(chip->PCIO, 0x3D5, offset);
1851     offset >>= 8;
1852     VGA_WR08(chip->PCIO, 0x3D4, 0x19); tmp = VGA_RD08(chip->PCIO, 0x3D5);
1853     VGA_WR08(chip->PCIO, 0x3D5, (offset & 0x01F) | (tmp & ~0x1F));
1854     VGA_WR08(chip->PCIO, 0x3D4, 0x2D); tmp = VGA_RD08(chip->PCIO, 0x3D5);
1855     VGA_WR08(chip->PCIO, 0x3D5, (offset & 0x60) | (tmp & ~0x60));
1856     /*
1857      * 4 pixel pan register.
1858      */
1859     offset = VGA_RD08(chip->PCIO, chip->IO + 0x0A);
1860     VGA_WR08(chip->PCIO, 0x3C0, 0x13);
1861     VGA_WR08(chip->PCIO, 0x3C0, pan);
1862 }
1863 static void nv3SetSurfaces2D
1864 (
1865     RIVA_HW_INST *chip,
1866     unsigned     surf0,
1867     unsigned     surf1
1868 )
1869 {
1870     RivaSurface __iomem *Surface =
1871         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1872
1873     RIVA_FIFO_FREE(*chip,Tri03,5);
1874     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1875     NV_WR32(&Surface->Offset, 0, surf0);
1876     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1877     NV_WR32(&Surface->Offset, 0, surf1);
1878     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000013);
1879 }
1880 static void nv4SetSurfaces2D
1881 (
1882     RIVA_HW_INST *chip,
1883     unsigned     surf0,
1884     unsigned     surf1
1885 )
1886 {
1887     RivaSurface __iomem *Surface =
1888         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1889
1890     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1891     NV_WR32(&Surface->Offset, 0, surf0);
1892     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1893     NV_WR32(&Surface->Offset, 0, surf1);
1894     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1895 }
1896 static void nv10SetSurfaces2D
1897 (
1898     RIVA_HW_INST *chip,
1899     unsigned     surf0,
1900     unsigned     surf1
1901 )
1902 {
1903     RivaSurface __iomem *Surface =
1904         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1905
1906     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1907     NV_WR32(&Surface->Offset, 0, surf0);
1908     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1909     NV_WR32(&Surface->Offset, 0, surf1);
1910     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1911 }
1912 static void nv3SetSurfaces3D
1913 (
1914     RIVA_HW_INST *chip,
1915     unsigned     surf0,
1916     unsigned     surf1
1917 )
1918 {
1919     RivaSurface __iomem *Surface =
1920         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1921
1922     RIVA_FIFO_FREE(*chip,Tri03,5);
1923     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000005);
1924     NV_WR32(&Surface->Offset, 0, surf0);
1925     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000006);
1926     NV_WR32(&Surface->Offset, 0, surf1);
1927     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000013);
1928 }
1929 static void nv4SetSurfaces3D
1930 (
1931     RIVA_HW_INST *chip,
1932     unsigned     surf0,
1933     unsigned     surf1
1934 )
1935 {
1936     RivaSurface __iomem *Surface =
1937         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1938
1939     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000005);
1940     NV_WR32(&Surface->Offset, 0, surf0);
1941     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000006);
1942     NV_WR32(&Surface->Offset, 0, surf1);
1943     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1944 }
1945 static void nv10SetSurfaces3D
1946 (
1947     RIVA_HW_INST *chip,
1948     unsigned     surf0,
1949     unsigned     surf1
1950 )
1951 {
1952     RivaSurface3D __iomem *Surfaces3D =
1953         (RivaSurface3D __iomem *)&(chip->FIFO[0x0000E000/4]);
1954
1955     RIVA_FIFO_FREE(*chip,Tri03,4);
1956     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000007);
1957     NV_WR32(&Surfaces3D->RenderBufferOffset, 0, surf0);
1958     NV_WR32(&Surfaces3D->ZBufferOffset, 0, surf1);
1959     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1960 }
1961
1962 /****************************************************************************\
1963 *                                                                            *
1964 *                      Probe RIVA Chip Configuration                         *
1965 *                                                                            *
1966 \****************************************************************************/
1967
1968 static void nv3GetConfig
1969 (
1970     RIVA_HW_INST *chip
1971 )
1972 {
1973     /*
1974      * Fill in chip configuration.
1975      */
1976     if (NV_RD32(&chip->PFB[0x00000000/4], 0) & 0x00000020)
1977     {
1978         if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
1979          && ((NV_RD32(chip->PMC, 0x00000000) & 0x0F) >= 0x02))
1980         {
1981             /*
1982              * SDRAM 128 ZX.
1983              */
1984             chip->RamBandwidthKBytesPerSec = 800000;
1985             switch (NV_RD32(chip->PFB, 0x00000000) & 0x03)
1986             {
1987                 case 2:
1988                     chip->RamAmountKBytes = 1024 * 4;
1989                     break;
1990                 case 1:
1991                     chip->RamAmountKBytes = 1024 * 2;
1992                     break;
1993                 default:
1994                     chip->RamAmountKBytes = 1024 * 8;
1995                     break;
1996             }
1997         }
1998         else
1999         {
2000             chip->RamBandwidthKBytesPerSec = 1000000;
2001             chip->RamAmountKBytes          = 1024 * 8;
2002         }
2003     }
2004     else
2005     {
2006         /*
2007          * SGRAM 128.
2008          */
2009         chip->RamBandwidthKBytesPerSec = 1000000;
2010         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003)
2011         {
2012             case 0:
2013                 chip->RamAmountKBytes = 1024 * 8;
2014                 break;
2015             case 2:
2016                 chip->RamAmountKBytes = 1024 * 4;
2017                 break;
2018             default:
2019                 chip->RamAmountKBytes = 1024 * 2;
2020                 break;
2021         }
2022     }
2023     chip->CrystalFreqKHz   = (NV_RD32(chip->PEXTDEV, 0x00000000) & 0x00000040) ? 14318 : 13500;
2024     chip->CURSOR           = &(chip->PRAMIN[0x00008000/4 - 0x0800/4]);
2025     chip->VBlankBit        = 0x00000100;
2026     chip->MaxVClockFreqKHz = 256000;
2027     /*
2028      * Set chip functions.
2029      */
2030     chip->Busy            = nv3Busy;
2031     chip->ShowHideCursor  = ShowHideCursor;
2032     chip->LoadStateExt    = LoadStateExt;
2033     chip->UnloadStateExt  = UnloadStateExt;
2034     chip->SetStartAddress = SetStartAddress3;
2035     chip->SetSurfaces2D   = nv3SetSurfaces2D;
2036     chip->SetSurfaces3D   = nv3SetSurfaces3D;
2037     chip->LockUnlock      = nv3LockUnlock;
2038 }
2039 static void nv4GetConfig
2040 (
2041     RIVA_HW_INST *chip
2042 )
2043 {
2044     /*
2045      * Fill in chip configuration.
2046      */
2047     if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100)
2048     {
2049         chip->RamAmountKBytes = ((NV_RD32(chip->PFB, 0x00000000) >> 12) & 0x0F) * 1024 * 2
2050                               + 1024 * 2;
2051     }
2052     else
2053     {
2054         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003)
2055         {
2056             case 0:
2057                 chip->RamAmountKBytes = 1024 * 32;
2058                 break;
2059             case 1:
2060                 chip->RamAmountKBytes = 1024 * 4;
2061                 break;
2062             case 2:
2063                 chip->RamAmountKBytes = 1024 * 8;
2064                 break;
2065             case 3:
2066             default:
2067                 chip->RamAmountKBytes = 1024 * 16;
2068                 break;
2069         }
2070     }
2071     switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003)
2072     {
2073         case 3:
2074             chip->RamBandwidthKBytesPerSec = 800000;
2075             break;
2076         default:
2077             chip->RamBandwidthKBytesPerSec = 1000000;
2078             break;
2079     }
2080     chip->CrystalFreqKHz   = (NV_RD32(chip->PEXTDEV, 0x00000000) & 0x00000040) ? 14318 : 13500;
2081     chip->CURSOR           = &(chip->PRAMIN[0x00010000/4 - 0x0800/4]);
2082     chip->VBlankBit        = 0x00000001;
2083     chip->MaxVClockFreqKHz = 350000;
2084     /*
2085      * Set chip functions.
2086      */
2087     chip->Busy            = nv4Busy;
2088     chip->ShowHideCursor  = ShowHideCursor;
2089     chip->LoadStateExt    = LoadStateExt;
2090     chip->UnloadStateExt  = UnloadStateExt;
2091     chip->SetStartAddress = SetStartAddress;
2092     chip->SetSurfaces2D   = nv4SetSurfaces2D;
2093     chip->SetSurfaces3D   = nv4SetSurfaces3D;
2094     chip->LockUnlock      = nv4LockUnlock;
2095 }
2096 static void nv10GetConfig
2097 (
2098     RIVA_HW_INST *chip,
2099     unsigned int chipset
2100 )
2101 {
2102     struct pci_dev* dev;
2103     int amt;
2104
2105 #ifdef __BIG_ENDIAN
2106     /* turn on big endian register access */
2107     if(!(NV_RD32(chip->PMC, 0x00000004) & 0x01000001))
2108         NV_WR32(chip->PMC, 0x00000004, 0x01000001);
2109 #endif
2110
2111     /*
2112      * Fill in chip configuration.
2113      */
2114     if(chipset == NV_CHIP_IGEFORCE2) {
2115         dev = pci_find_slot(0, 1);
2116         pci_read_config_dword(dev, 0x7C, &amt);
2117         chip->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
2118     } else if(chipset == NV_CHIP_0x01F0) {
2119         dev = pci_find_slot(0, 1);
2120         pci_read_config_dword(dev, 0x84, &amt);
2121         chip->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
2122     } else {
2123         switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) & 0x000000FF)
2124         {
2125             case 0x02:
2126                 chip->RamAmountKBytes = 1024 * 2;
2127                 break;
2128             case 0x04:
2129                 chip->RamAmountKBytes = 1024 * 4;
2130                 break;
2131             case 0x08:
2132                 chip->RamAmountKBytes = 1024 * 8;
2133                 break;
2134             case 0x10:
2135                 chip->RamAmountKBytes = 1024 * 16;
2136                 break;
2137             case 0x20:
2138                 chip->RamAmountKBytes = 1024 * 32;
2139                 break;
2140             case 0x40:
2141                 chip->RamAmountKBytes = 1024 * 64;
2142                 break;
2143             case 0x80:
2144                 chip->RamAmountKBytes = 1024 * 128;
2145                 break;
2146             default:
2147                 chip->RamAmountKBytes = 1024 * 16;
2148                 break;
2149         }
2150     }
2151     switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003)
2152     {
2153         case 3:
2154             chip->RamBandwidthKBytesPerSec = 800000;
2155             break;
2156         default:
2157             chip->RamBandwidthKBytesPerSec = 1000000;
2158             break;
2159     }
2160     chip->CrystalFreqKHz = (NV_RD32(chip->PEXTDEV, 0x0000) & (1 << 6)) ?
2161         14318 : 13500;
2162
2163     switch (chipset & 0x0ff0) {
2164     case 0x0170:
2165     case 0x0180:
2166     case 0x01F0:
2167     case 0x0250:
2168     case 0x0280:
2169     case 0x0300:
2170     case 0x0310:
2171     case 0x0320:
2172     case 0x0330:
2173     case 0x0340:
2174        if(NV_RD32(chip->PEXTDEV, 0x0000) & (1 << 22))
2175            chip->CrystalFreqKHz = 27000;
2176        break;
2177     default:
2178        break;
2179     }
2180
2181     chip->CursorStart      = (chip->RamAmountKBytes - 128) * 1024;
2182     chip->CURSOR           = NULL;  /* can't set this here */
2183     chip->VBlankBit        = 0x00000001;
2184     chip->MaxVClockFreqKHz = 350000;
2185     /*
2186      * Set chip functions.
2187      */
2188     chip->Busy            = nv10Busy;
2189     chip->ShowHideCursor  = ShowHideCursor;
2190     chip->LoadStateExt    = LoadStateExt;
2191     chip->UnloadStateExt  = UnloadStateExt;
2192     chip->SetStartAddress = SetStartAddress;
2193     chip->SetSurfaces2D   = nv10SetSurfaces2D;
2194     chip->SetSurfaces3D   = nv10SetSurfaces3D;
2195     chip->LockUnlock      = nv4LockUnlock;
2196
2197     switch(chipset & 0x0ff0) {
2198     case 0x0110:
2199     case 0x0170:
2200     case 0x0180:
2201     case 0x01F0:
2202     case 0x0250:
2203     case 0x0280:
2204     case 0x0300:
2205     case 0x0310:
2206     case 0x0320:
2207     case 0x0330:
2208     case 0x0340:
2209         chip->twoHeads = TRUE;
2210         break;
2211     default:
2212         chip->twoHeads = FALSE;
2213         break;
2214     }
2215 }
2216 int RivaGetConfig
2217 (
2218     RIVA_HW_INST *chip,
2219     unsigned int chipset
2220 )
2221 {
2222     /*
2223      * Save this so future SW know whats it's dealing with.
2224      */
2225     chip->Version = RIVA_SW_VERSION;
2226     /*
2227      * Chip specific configuration.
2228      */
2229     switch (chip->Architecture)
2230     {
2231         case NV_ARCH_03:
2232             nv3GetConfig(chip);
2233             break;
2234         case NV_ARCH_04:
2235             nv4GetConfig(chip);
2236             break;
2237         case NV_ARCH_10:
2238         case NV_ARCH_20:
2239         case NV_ARCH_30:
2240             nv10GetConfig(chip, chipset);
2241             break;
2242         default:
2243             return (-1);
2244     }
2245     chip->Chipset = chipset;
2246     /*
2247      * Fill in FIFO pointers.
2248      */
2249     chip->Rop    = (RivaRop __iomem         *)&(chip->FIFO[0x00000000/4]);
2250     chip->Clip   = (RivaClip __iomem        *)&(chip->FIFO[0x00002000/4]);
2251     chip->Patt   = (RivaPattern __iomem     *)&(chip->FIFO[0x00004000/4]);
2252     chip->Pixmap = (RivaPixmap __iomem      *)&(chip->FIFO[0x00006000/4]);
2253     chip->Blt    = (RivaScreenBlt __iomem   *)&(chip->FIFO[0x00008000/4]);
2254     chip->Bitmap = (RivaBitmap __iomem      *)&(chip->FIFO[0x0000A000/4]);
2255     chip->Line   = (RivaLine __iomem        *)&(chip->FIFO[0x0000C000/4]);
2256     chip->Tri03  = (RivaTexturedTriangle03 __iomem *)&(chip->FIFO[0x0000E000/4]);
2257     return (0);
2258 }
2259