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_get_bus_and_slot(0, 3);
1122     pci_read_config_dword(dev, 0x6C, &uMClkPostDiv);
1123     pci_dev_put(dev);
1124     uMClkPostDiv = (uMClkPostDiv >> 8) & 0xf;
1125
1126     if(!uMClkPostDiv) uMClkPostDiv = 4;
1127     MClk = 400000 / uMClkPostDiv;
1128
1129     pll = NV_RD32(&chip->PRAMDAC0[0x00000500/4], 0);
1130     M = (pll >> 0)  & 0xFF; N = (pll >> 8)  & 0xFF; P = (pll >> 16) & 0x0F;
1131     NVClk  = (N * chip->CrystalFreqKHz / M) >> P;
1132     sim_data.pix_bpp        = (char)pixelDepth;
1133     sim_data.enable_video   = 0;
1134     sim_data.enable_mp      = 0;
1135
1136     dev = pci_get_bus_and_slot(0, 1);
1137     pci_read_config_dword(dev, 0x7C, &sim_data.memory_type);
1138     pci_dev_put(dev);
1139     sim_data.memory_type    = (sim_data.memory_type >> 12) & 1;
1140
1141     sim_data.memory_width   = 64;
1142     sim_data.mem_latency    = 3;
1143     sim_data.mem_aligned    = 1;
1144     sim_data.mem_page_miss  = 10;
1145     sim_data.gr_during_vid  = 0;
1146     sim_data.pclk_khz       = VClk;
1147     sim_data.mclk_khz       = MClk;
1148     sim_data.nvclk_khz      = NVClk;
1149     nv10CalcArbitration(&fifo_data, &sim_data);
1150     if (fifo_data.valid)
1151     {
1152         int  b = fifo_data.graphics_burst_size >> 4;
1153         *burst = 0;
1154         while (b >>= 1)
1155             (*burst)++;
1156         *lwm   = fifo_data.graphics_lwm >> 3;
1157     }
1158 }
1159
1160 /****************************************************************************\
1161 *                                                                            *
1162 *                          RIVA Mode State Routines                          *
1163 *                                                                            *
1164 \****************************************************************************/
1165
1166 /*
1167  * Calculate the Video Clock parameters for the PLL.
1168  */
1169 static int CalcVClock
1170 (
1171     int           clockIn,
1172     int          *clockOut,
1173     int          *mOut,
1174     int          *nOut,
1175     int          *pOut,
1176     RIVA_HW_INST *chip
1177 )
1178 {
1179     unsigned lowM, highM, highP;
1180     unsigned DeltaNew, DeltaOld;
1181     unsigned VClk, Freq;
1182     unsigned M, N, P;
1183
1184     DeltaOld = 0xFFFFFFFF;
1185
1186     VClk     = (unsigned)clockIn;
1187
1188     if (chip->CrystalFreqKHz == 13500)
1189     {
1190         lowM  = 7;
1191         highM = 13 - (chip->Architecture == NV_ARCH_03);
1192     }
1193     else
1194     {
1195         lowM  = 8;
1196         highM = 14 - (chip->Architecture == NV_ARCH_03);
1197     }
1198
1199     highP = 4 - (chip->Architecture == NV_ARCH_03);
1200     for (P = 0; P <= highP; P ++)
1201     {
1202         Freq = VClk << P;
1203         if ((Freq >= 128000) && (Freq <= chip->MaxVClockFreqKHz))
1204         {
1205             for (M = lowM; M <= highM; M++)
1206             {
1207                 N    = (VClk << P) * M / chip->CrystalFreqKHz;
1208                 if(N <= 255) {
1209                 Freq = (chip->CrystalFreqKHz * N / M) >> P;
1210                 if (Freq > VClk)
1211                     DeltaNew = Freq - VClk;
1212                 else
1213                     DeltaNew = VClk - Freq;
1214                 if (DeltaNew < DeltaOld)
1215                 {
1216                     *mOut     = M;
1217                     *nOut     = N;
1218                     *pOut     = P;
1219                     *clockOut = Freq;
1220                     DeltaOld  = DeltaNew;
1221                 }
1222             }
1223         }
1224     }
1225     }
1226
1227     /* non-zero: M/N/P/clock values assigned.  zero: error (not set) */
1228     return (DeltaOld != 0xFFFFFFFF);
1229 }
1230 /*
1231  * Calculate extended mode parameters (SVGA) and save in a
1232  * mode state structure.
1233  */
1234 int CalcStateExt
1235 (
1236     RIVA_HW_INST  *chip,
1237     RIVA_HW_STATE *state,
1238     int            bpp,
1239     int            width,
1240     int            hDisplaySize,
1241     int            height,
1242     int            dotClock
1243 )
1244 {
1245     int pixelDepth;
1246     int uninitialized_var(VClk),uninitialized_var(m),
1247         uninitialized_var(n),   uninitialized_var(p);
1248
1249     /*
1250      * Save mode parameters.
1251      */
1252     state->bpp    = bpp;    /* this is not bitsPerPixel, it's 8,15,16,32 */
1253     state->width  = width;
1254     state->height = height;
1255     /*
1256      * Extended RIVA registers.
1257      */
1258     pixelDepth = (bpp + 1)/8;
1259     if (!CalcVClock(dotClock, &VClk, &m, &n, &p, chip))
1260         return -EINVAL;
1261
1262     switch (chip->Architecture)
1263     {
1264         case NV_ARCH_03:
1265             nv3UpdateArbitrationSettings(VClk,
1266                                          pixelDepth * 8,
1267                                         &(state->arbitration0),
1268                                         &(state->arbitration1),
1269                                          chip);
1270             state->cursor0  = 0x00;
1271             state->cursor1  = 0x78;
1272             state->cursor2  = 0x00000000;
1273             state->pllsel   = 0x10010100;
1274             state->config   = ((width + 31)/32)
1275                             | (((pixelDepth > 2) ? 3 : pixelDepth) << 8)
1276                             | 0x1000;
1277             state->general  = 0x00100100;
1278             state->repaint1 = hDisplaySize < 1280 ? 0x06 : 0x02;
1279             break;
1280         case NV_ARCH_04:
1281             nv4UpdateArbitrationSettings(VClk,
1282                                          pixelDepth * 8,
1283                                         &(state->arbitration0),
1284                                         &(state->arbitration1),
1285                                          chip);
1286             state->cursor0  = 0x00;
1287             state->cursor1  = 0xFC;
1288             state->cursor2  = 0x00000000;
1289             state->pllsel   = 0x10000700;
1290             state->config   = 0x00001114;
1291             state->general  = bpp == 16 ? 0x00101100 : 0x00100100;
1292             state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
1293             break;
1294         case NV_ARCH_10:
1295         case NV_ARCH_20:
1296         case NV_ARCH_30:
1297             if((chip->Chipset == NV_CHIP_IGEFORCE2) ||
1298                (chip->Chipset == NV_CHIP_0x01F0))
1299             {
1300                 nForceUpdateArbitrationSettings(VClk,
1301                                           pixelDepth * 8,
1302                                          &(state->arbitration0),
1303                                          &(state->arbitration1),
1304                                           chip);
1305             } else {
1306                 nv10UpdateArbitrationSettings(VClk,
1307                                           pixelDepth * 8,
1308                                          &(state->arbitration0),
1309                                          &(state->arbitration1),
1310                                           chip);
1311             }
1312             state->cursor0  = 0x80 | (chip->CursorStart >> 17);
1313             state->cursor1  = (chip->CursorStart >> 11) << 2;
1314             state->cursor2  = chip->CursorStart >> 24;
1315             state->pllsel   = 0x10000700;
1316             state->config   = NV_RD32(&chip->PFB[0x00000200/4], 0);
1317             state->general  = bpp == 16 ? 0x00101100 : 0x00100100;
1318             state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
1319             break;
1320     }
1321
1322      /* Paul Richards: below if block borks things in kernel for some reason */
1323      /* Tony: Below is needed to set hardware in DirectColor */
1324     if((bpp != 8) && (chip->Architecture != NV_ARCH_03))
1325             state->general |= 0x00000030;
1326
1327     state->vpll     = (p << 16) | (n << 8) | m;
1328     state->repaint0 = (((width/8)*pixelDepth) & 0x700) >> 3;
1329     state->pixel    = pixelDepth > 2   ? 3    : pixelDepth;
1330     state->offset0  =
1331     state->offset1  =
1332     state->offset2  =
1333     state->offset3  = 0;
1334     state->pitch0   =
1335     state->pitch1   =
1336     state->pitch2   =
1337     state->pitch3   = pixelDepth * width;
1338
1339     return 0;
1340 }
1341 /*
1342  * Load fixed function state and pre-calculated/stored state.
1343  */
1344 #if 0
1345 #define LOAD_FIXED_STATE(tbl,dev)                                       \
1346     for (i = 0; i < sizeof(tbl##Table##dev)/8; i++)                 \
1347         chip->dev[tbl##Table##dev[i][0]] = tbl##Table##dev[i][1]
1348 #define LOAD_FIXED_STATE_8BPP(tbl,dev)                                  \
1349     for (i = 0; i < sizeof(tbl##Table##dev##_8BPP)/8; i++)            \
1350         chip->dev[tbl##Table##dev##_8BPP[i][0]] = tbl##Table##dev##_8BPP[i][1]
1351 #define LOAD_FIXED_STATE_15BPP(tbl,dev)                                 \
1352     for (i = 0; i < sizeof(tbl##Table##dev##_15BPP)/8; i++)           \
1353         chip->dev[tbl##Table##dev##_15BPP[i][0]] = tbl##Table##dev##_15BPP[i][1]
1354 #define LOAD_FIXED_STATE_16BPP(tbl,dev)                                 \
1355     for (i = 0; i < sizeof(tbl##Table##dev##_16BPP)/8; i++)           \
1356         chip->dev[tbl##Table##dev##_16BPP[i][0]] = tbl##Table##dev##_16BPP[i][1]
1357 #define LOAD_FIXED_STATE_32BPP(tbl,dev)                                 \
1358     for (i = 0; i < sizeof(tbl##Table##dev##_32BPP)/8; i++)           \
1359         chip->dev[tbl##Table##dev##_32BPP[i][0]] = tbl##Table##dev##_32BPP[i][1]
1360 #endif
1361
1362 #define LOAD_FIXED_STATE(tbl,dev)                                       \
1363     for (i = 0; i < sizeof(tbl##Table##dev)/8; i++)                 \
1364         NV_WR32(&chip->dev[tbl##Table##dev[i][0]], 0, tbl##Table##dev[i][1])
1365 #define LOAD_FIXED_STATE_8BPP(tbl,dev)                                  \
1366     for (i = 0; i < sizeof(tbl##Table##dev##_8BPP)/8; i++)            \
1367         NV_WR32(&chip->dev[tbl##Table##dev##_8BPP[i][0]], 0, tbl##Table##dev##_8BPP[i][1])
1368 #define LOAD_FIXED_STATE_15BPP(tbl,dev)                                 \
1369     for (i = 0; i < sizeof(tbl##Table##dev##_15BPP)/8; i++)           \
1370         NV_WR32(&chip->dev[tbl##Table##dev##_15BPP[i][0]], 0, tbl##Table##dev##_15BPP[i][1])
1371 #define LOAD_FIXED_STATE_16BPP(tbl,dev)                                 \
1372     for (i = 0; i < sizeof(tbl##Table##dev##_16BPP)/8; i++)           \
1373         NV_WR32(&chip->dev[tbl##Table##dev##_16BPP[i][0]], 0, tbl##Table##dev##_16BPP[i][1])
1374 #define LOAD_FIXED_STATE_32BPP(tbl,dev)                                 \
1375     for (i = 0; i < sizeof(tbl##Table##dev##_32BPP)/8; i++)           \
1376         NV_WR32(&chip->dev[tbl##Table##dev##_32BPP[i][0]], 0, tbl##Table##dev##_32BPP[i][1])
1377
1378 static void UpdateFifoState
1379 (
1380     RIVA_HW_INST  *chip
1381 )
1382 {
1383     int i;
1384
1385     switch (chip->Architecture)
1386     {
1387         case NV_ARCH_04:
1388             LOAD_FIXED_STATE(nv4,FIFO);
1389             chip->Tri03 = NULL;
1390             chip->Tri05 = (RivaTexturedTriangle05 __iomem *)&(chip->FIFO[0x0000E000/4]);
1391             break;
1392         case NV_ARCH_10:
1393         case NV_ARCH_20:
1394         case NV_ARCH_30:
1395             /*
1396              * Initialize state for the RivaTriangle3D05 routines.
1397              */
1398             LOAD_FIXED_STATE(nv10tri05,PGRAPH);
1399             LOAD_FIXED_STATE(nv10,FIFO);
1400             chip->Tri03 = NULL;
1401             chip->Tri05 = (RivaTexturedTriangle05 __iomem *)&(chip->FIFO[0x0000E000/4]);
1402             break;
1403     }
1404 }
1405 static void LoadStateExt
1406 (
1407     RIVA_HW_INST  *chip,
1408     RIVA_HW_STATE *state
1409 )
1410 {
1411     int i;
1412
1413     /*
1414      * Load HW fixed function state.
1415      */
1416     LOAD_FIXED_STATE(Riva,PMC);
1417     LOAD_FIXED_STATE(Riva,PTIMER);
1418     switch (chip->Architecture)
1419     {
1420         case NV_ARCH_03:
1421             /*
1422              * Make sure frame buffer config gets set before loading PRAMIN.
1423              */
1424             NV_WR32(chip->PFB, 0x00000200, state->config);
1425             LOAD_FIXED_STATE(nv3,PFIFO);
1426             LOAD_FIXED_STATE(nv3,PRAMIN);
1427             LOAD_FIXED_STATE(nv3,PGRAPH);
1428             switch (state->bpp)
1429             {
1430                 case 15:
1431                 case 16:
1432                     LOAD_FIXED_STATE_15BPP(nv3,PRAMIN);
1433                     LOAD_FIXED_STATE_15BPP(nv3,PGRAPH);
1434                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1435                     break;
1436                 case 24:
1437                 case 32:
1438                     LOAD_FIXED_STATE_32BPP(nv3,PRAMIN);
1439                     LOAD_FIXED_STATE_32BPP(nv3,PGRAPH);
1440                     chip->Tri03 = NULL;
1441                     break;
1442                 case 8:
1443                 default:
1444                     LOAD_FIXED_STATE_8BPP(nv3,PRAMIN);
1445                     LOAD_FIXED_STATE_8BPP(nv3,PGRAPH);
1446                     chip->Tri03 = NULL;
1447                     break;
1448             }
1449             for (i = 0x00000; i < 0x00800; i++)
1450                 NV_WR32(&chip->PRAMIN[0x00000502 + i], 0, (i << 12) | 0x03);
1451             NV_WR32(chip->PGRAPH, 0x00000630, state->offset0);
1452             NV_WR32(chip->PGRAPH, 0x00000634, state->offset1);
1453             NV_WR32(chip->PGRAPH, 0x00000638, state->offset2);
1454             NV_WR32(chip->PGRAPH, 0x0000063C, state->offset3);
1455             NV_WR32(chip->PGRAPH, 0x00000650, state->pitch0);
1456             NV_WR32(chip->PGRAPH, 0x00000654, state->pitch1);
1457             NV_WR32(chip->PGRAPH, 0x00000658, state->pitch2);
1458             NV_WR32(chip->PGRAPH, 0x0000065C, state->pitch3);
1459             break;
1460         case NV_ARCH_04:
1461             /*
1462              * Make sure frame buffer config gets set before loading PRAMIN.
1463              */
1464             NV_WR32(chip->PFB, 0x00000200, state->config);
1465             LOAD_FIXED_STATE(nv4,PFIFO);
1466             LOAD_FIXED_STATE(nv4,PRAMIN);
1467             LOAD_FIXED_STATE(nv4,PGRAPH);
1468             switch (state->bpp)
1469             {
1470                 case 15:
1471                     LOAD_FIXED_STATE_15BPP(nv4,PRAMIN);
1472                     LOAD_FIXED_STATE_15BPP(nv4,PGRAPH);
1473                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1474                     break;
1475                 case 16:
1476                     LOAD_FIXED_STATE_16BPP(nv4,PRAMIN);
1477                     LOAD_FIXED_STATE_16BPP(nv4,PGRAPH);
1478                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1479                     break;
1480                 case 24:
1481                 case 32:
1482                     LOAD_FIXED_STATE_32BPP(nv4,PRAMIN);
1483                     LOAD_FIXED_STATE_32BPP(nv4,PGRAPH);
1484                     chip->Tri03 = NULL;
1485                     break;
1486                 case 8:
1487                 default:
1488                     LOAD_FIXED_STATE_8BPP(nv4,PRAMIN);
1489                     LOAD_FIXED_STATE_8BPP(nv4,PGRAPH);
1490                     chip->Tri03 = NULL;
1491                     break;
1492             }
1493             NV_WR32(chip->PGRAPH, 0x00000640, state->offset0);
1494             NV_WR32(chip->PGRAPH, 0x00000644, state->offset1);
1495             NV_WR32(chip->PGRAPH, 0x00000648, state->offset2);
1496             NV_WR32(chip->PGRAPH, 0x0000064C, state->offset3);
1497             NV_WR32(chip->PGRAPH, 0x00000670, state->pitch0);
1498             NV_WR32(chip->PGRAPH, 0x00000674, state->pitch1);
1499             NV_WR32(chip->PGRAPH, 0x00000678, state->pitch2);
1500             NV_WR32(chip->PGRAPH, 0x0000067C, state->pitch3);
1501             break;
1502         case NV_ARCH_10:
1503         case NV_ARCH_20:
1504         case NV_ARCH_30:
1505             if(chip->twoHeads) {
1506                VGA_WR08(chip->PCIO, 0x03D4, 0x44);
1507                VGA_WR08(chip->PCIO, 0x03D5, state->crtcOwner);
1508                chip->LockUnlock(chip, 0);
1509             }
1510
1511             LOAD_FIXED_STATE(nv10,PFIFO);
1512             LOAD_FIXED_STATE(nv10,PRAMIN);
1513             LOAD_FIXED_STATE(nv10,PGRAPH);
1514             switch (state->bpp)
1515             {
1516                 case 15:
1517                     LOAD_FIXED_STATE_15BPP(nv10,PRAMIN);
1518                     LOAD_FIXED_STATE_15BPP(nv10,PGRAPH);
1519                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1520                     break;
1521                 case 16:
1522                     LOAD_FIXED_STATE_16BPP(nv10,PRAMIN);
1523                     LOAD_FIXED_STATE_16BPP(nv10,PGRAPH);
1524                     chip->Tri03 = (RivaTexturedTriangle03  __iomem *)&(chip->FIFO[0x0000E000/4]);
1525                     break;
1526                 case 24:
1527                 case 32:
1528                     LOAD_FIXED_STATE_32BPP(nv10,PRAMIN);
1529                     LOAD_FIXED_STATE_32BPP(nv10,PGRAPH);
1530                     chip->Tri03 = NULL;
1531                     break;
1532                 case 8:
1533                 default:
1534                     LOAD_FIXED_STATE_8BPP(nv10,PRAMIN);
1535                     LOAD_FIXED_STATE_8BPP(nv10,PGRAPH);
1536                     chip->Tri03 = NULL;
1537                     break;
1538             }
1539
1540             if(chip->Architecture == NV_ARCH_10) {
1541                 NV_WR32(chip->PGRAPH, 0x00000640, state->offset0);
1542                 NV_WR32(chip->PGRAPH, 0x00000644, state->offset1);
1543                 NV_WR32(chip->PGRAPH, 0x00000648, state->offset2);
1544                 NV_WR32(chip->PGRAPH, 0x0000064C, state->offset3);
1545                 NV_WR32(chip->PGRAPH, 0x00000670, state->pitch0);
1546                 NV_WR32(chip->PGRAPH, 0x00000674, state->pitch1);
1547                 NV_WR32(chip->PGRAPH, 0x00000678, state->pitch2);
1548                 NV_WR32(chip->PGRAPH, 0x0000067C, state->pitch3);
1549                 NV_WR32(chip->PGRAPH, 0x00000680, state->pitch3);
1550         } else {
1551         NV_WR32(chip->PGRAPH, 0x00000820, state->offset0);
1552         NV_WR32(chip->PGRAPH, 0x00000824, state->offset1);
1553         NV_WR32(chip->PGRAPH, 0x00000828, state->offset2);
1554         NV_WR32(chip->PGRAPH, 0x0000082C, state->offset3);
1555         NV_WR32(chip->PGRAPH, 0x00000850, state->pitch0);
1556         NV_WR32(chip->PGRAPH, 0x00000854, state->pitch1);
1557         NV_WR32(chip->PGRAPH, 0x00000858, state->pitch2);
1558         NV_WR32(chip->PGRAPH, 0x0000085C, state->pitch3);
1559         NV_WR32(chip->PGRAPH, 0x00000860, state->pitch3);
1560         NV_WR32(chip->PGRAPH, 0x00000864, state->pitch3);
1561         NV_WR32(chip->PGRAPH, 0x000009A4, NV_RD32(chip->PFB, 0x00000200));
1562         NV_WR32(chip->PGRAPH, 0x000009A8, NV_RD32(chip->PFB, 0x00000204));
1563         }
1564             if(chip->twoHeads) {
1565                NV_WR32(chip->PCRTC0, 0x00000860, state->head);
1566                NV_WR32(chip->PCRTC0, 0x00002860, state->head2);
1567             }
1568             NV_WR32(chip->PRAMDAC, 0x00000404, NV_RD32(chip->PRAMDAC, 0x00000404) | (1 << 25));
1569
1570             NV_WR32(chip->PMC, 0x00008704, 1);
1571             NV_WR32(chip->PMC, 0x00008140, 0);
1572             NV_WR32(chip->PMC, 0x00008920, 0);
1573             NV_WR32(chip->PMC, 0x00008924, 0);
1574             NV_WR32(chip->PMC, 0x00008908, 0x01ffffff);
1575             NV_WR32(chip->PMC, 0x0000890C, 0x01ffffff);
1576             NV_WR32(chip->PMC, 0x00001588, 0);
1577
1578             NV_WR32(chip->PFB, 0x00000240, 0);
1579             NV_WR32(chip->PFB, 0x00000250, 0);
1580             NV_WR32(chip->PFB, 0x00000260, 0);
1581             NV_WR32(chip->PFB, 0x00000270, 0);
1582             NV_WR32(chip->PFB, 0x00000280, 0);
1583             NV_WR32(chip->PFB, 0x00000290, 0);
1584             NV_WR32(chip->PFB, 0x000002A0, 0);
1585             NV_WR32(chip->PFB, 0x000002B0, 0);
1586
1587             NV_WR32(chip->PGRAPH, 0x00000B00, NV_RD32(chip->PFB, 0x00000240));
1588             NV_WR32(chip->PGRAPH, 0x00000B04, NV_RD32(chip->PFB, 0x00000244));
1589             NV_WR32(chip->PGRAPH, 0x00000B08, NV_RD32(chip->PFB, 0x00000248));
1590             NV_WR32(chip->PGRAPH, 0x00000B0C, NV_RD32(chip->PFB, 0x0000024C));
1591             NV_WR32(chip->PGRAPH, 0x00000B10, NV_RD32(chip->PFB, 0x00000250));
1592             NV_WR32(chip->PGRAPH, 0x00000B14, NV_RD32(chip->PFB, 0x00000254));
1593             NV_WR32(chip->PGRAPH, 0x00000B18, NV_RD32(chip->PFB, 0x00000258));
1594             NV_WR32(chip->PGRAPH, 0x00000B1C, NV_RD32(chip->PFB, 0x0000025C));
1595             NV_WR32(chip->PGRAPH, 0x00000B20, NV_RD32(chip->PFB, 0x00000260));
1596             NV_WR32(chip->PGRAPH, 0x00000B24, NV_RD32(chip->PFB, 0x00000264));
1597             NV_WR32(chip->PGRAPH, 0x00000B28, NV_RD32(chip->PFB, 0x00000268));
1598             NV_WR32(chip->PGRAPH, 0x00000B2C, NV_RD32(chip->PFB, 0x0000026C));
1599             NV_WR32(chip->PGRAPH, 0x00000B30, NV_RD32(chip->PFB, 0x00000270));
1600             NV_WR32(chip->PGRAPH, 0x00000B34, NV_RD32(chip->PFB, 0x00000274));
1601             NV_WR32(chip->PGRAPH, 0x00000B38, NV_RD32(chip->PFB, 0x00000278));
1602             NV_WR32(chip->PGRAPH, 0x00000B3C, NV_RD32(chip->PFB, 0x0000027C));
1603             NV_WR32(chip->PGRAPH, 0x00000B40, NV_RD32(chip->PFB, 0x00000280));
1604             NV_WR32(chip->PGRAPH, 0x00000B44, NV_RD32(chip->PFB, 0x00000284));
1605             NV_WR32(chip->PGRAPH, 0x00000B48, NV_RD32(chip->PFB, 0x00000288));
1606             NV_WR32(chip->PGRAPH, 0x00000B4C, NV_RD32(chip->PFB, 0x0000028C));
1607             NV_WR32(chip->PGRAPH, 0x00000B50, NV_RD32(chip->PFB, 0x00000290));
1608             NV_WR32(chip->PGRAPH, 0x00000B54, NV_RD32(chip->PFB, 0x00000294));
1609             NV_WR32(chip->PGRAPH, 0x00000B58, NV_RD32(chip->PFB, 0x00000298));
1610             NV_WR32(chip->PGRAPH, 0x00000B5C, NV_RD32(chip->PFB, 0x0000029C));
1611             NV_WR32(chip->PGRAPH, 0x00000B60, NV_RD32(chip->PFB, 0x000002A0));
1612             NV_WR32(chip->PGRAPH, 0x00000B64, NV_RD32(chip->PFB, 0x000002A4));
1613             NV_WR32(chip->PGRAPH, 0x00000B68, NV_RD32(chip->PFB, 0x000002A8));
1614             NV_WR32(chip->PGRAPH, 0x00000B6C, NV_RD32(chip->PFB, 0x000002AC));
1615             NV_WR32(chip->PGRAPH, 0x00000B70, NV_RD32(chip->PFB, 0x000002B0));
1616             NV_WR32(chip->PGRAPH, 0x00000B74, NV_RD32(chip->PFB, 0x000002B4));
1617             NV_WR32(chip->PGRAPH, 0x00000B78, NV_RD32(chip->PFB, 0x000002B8));
1618             NV_WR32(chip->PGRAPH, 0x00000B7C, NV_RD32(chip->PFB, 0x000002BC));
1619             NV_WR32(chip->PGRAPH, 0x00000F40, 0x10000000);
1620             NV_WR32(chip->PGRAPH, 0x00000F44, 0x00000000);
1621             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1622             NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000008);
1623             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000200);
1624             for (i = 0; i < (3*16); i++)
1625                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1626             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1627             NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1628             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000800);
1629             for (i = 0; i < (16*16); i++)
1630                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1631             NV_WR32(chip->PGRAPH, 0x00000F40, 0x30000000);
1632             NV_WR32(chip->PGRAPH, 0x00000F44, 0x00000004);
1633             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006400);
1634             for (i = 0; i < (59*4); i++)
1635                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1636             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006800);
1637             for (i = 0; i < (47*4); i++)
1638                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1639             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00006C00);
1640             for (i = 0; i < (3*4); i++)
1641                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1642             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007000);
1643             for (i = 0; i < (19*4); i++)
1644                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1645             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007400);
1646             for (i = 0; i < (12*4); i++)
1647                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1648             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00007800);
1649             for (i = 0; i < (12*4); i++)
1650                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1651             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00004400);
1652             for (i = 0; i < (8*4); i++)
1653                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1654             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000000);
1655             for (i = 0; i < 16; i++)
1656                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1657             NV_WR32(chip->PGRAPH, 0x00000F50, 0x00000040);
1658             for (i = 0; i < 4; i++)
1659                 NV_WR32(chip->PGRAPH, 0x00000F54, 0x00000000);
1660
1661             NV_WR32(chip->PCRTC, 0x00000810, state->cursorConfig);
1662
1663             if(chip->flatPanel) {
1664                if((chip->Chipset & 0x0ff0) == 0x0110) {
1665                    NV_WR32(chip->PRAMDAC, 0x0528, state->dither);
1666                } else
1667                if((chip->Chipset & 0x0ff0) >= 0x0170) {
1668                    NV_WR32(chip->PRAMDAC, 0x083C, state->dither);
1669                }
1670
1671                VGA_WR08(chip->PCIO, 0x03D4, 0x53);
1672                VGA_WR08(chip->PCIO, 0x03D5, 0);
1673                VGA_WR08(chip->PCIO, 0x03D4, 0x54);
1674                VGA_WR08(chip->PCIO, 0x03D5, 0);
1675                VGA_WR08(chip->PCIO, 0x03D4, 0x21);
1676                VGA_WR08(chip->PCIO, 0x03D5, 0xfa);
1677             }
1678
1679             VGA_WR08(chip->PCIO, 0x03D4, 0x41);
1680             VGA_WR08(chip->PCIO, 0x03D5, state->extra);
1681     }
1682     LOAD_FIXED_STATE(Riva,FIFO);
1683     UpdateFifoState(chip);
1684     /*
1685      * Load HW mode state.
1686      */
1687     VGA_WR08(chip->PCIO, 0x03D4, 0x19);
1688     VGA_WR08(chip->PCIO, 0x03D5, state->repaint0);
1689     VGA_WR08(chip->PCIO, 0x03D4, 0x1A);
1690     VGA_WR08(chip->PCIO, 0x03D5, state->repaint1);
1691     VGA_WR08(chip->PCIO, 0x03D4, 0x25);
1692     VGA_WR08(chip->PCIO, 0x03D5, state->screen);
1693     VGA_WR08(chip->PCIO, 0x03D4, 0x28);
1694     VGA_WR08(chip->PCIO, 0x03D5, state->pixel);
1695     VGA_WR08(chip->PCIO, 0x03D4, 0x2D);
1696     VGA_WR08(chip->PCIO, 0x03D5, state->horiz);
1697     VGA_WR08(chip->PCIO, 0x03D4, 0x1B);
1698     VGA_WR08(chip->PCIO, 0x03D5, state->arbitration0);
1699     VGA_WR08(chip->PCIO, 0x03D4, 0x20);
1700     VGA_WR08(chip->PCIO, 0x03D5, state->arbitration1);
1701     VGA_WR08(chip->PCIO, 0x03D4, 0x30);
1702     VGA_WR08(chip->PCIO, 0x03D5, state->cursor0);
1703     VGA_WR08(chip->PCIO, 0x03D4, 0x31);
1704     VGA_WR08(chip->PCIO, 0x03D5, state->cursor1);
1705     VGA_WR08(chip->PCIO, 0x03D4, 0x2F);
1706     VGA_WR08(chip->PCIO, 0x03D5, state->cursor2);
1707     VGA_WR08(chip->PCIO, 0x03D4, 0x39);
1708     VGA_WR08(chip->PCIO, 0x03D5, state->interlace);
1709
1710     if(!chip->flatPanel) {
1711        NV_WR32(chip->PRAMDAC0, 0x00000508, state->vpll);
1712        NV_WR32(chip->PRAMDAC0, 0x0000050C, state->pllsel);
1713        if(chip->twoHeads)
1714           NV_WR32(chip->PRAMDAC0, 0x00000520, state->vpll2);
1715     }  else {
1716        NV_WR32(chip->PRAMDAC, 0x00000848 , state->scale);
1717     }
1718     NV_WR32(chip->PRAMDAC, 0x00000600 , state->general);
1719
1720     /*
1721      * Turn off VBlank enable and reset.
1722      */
1723     NV_WR32(chip->PCRTC, 0x00000140, 0);
1724     NV_WR32(chip->PCRTC, 0x00000100, chip->VBlankBit);
1725     /*
1726      * Set interrupt enable.
1727      */
1728     NV_WR32(chip->PMC, 0x00000140, chip->EnableIRQ & 0x01);
1729     /*
1730      * Set current state pointer.
1731      */
1732     chip->CurrentState = state;
1733     /*
1734      * Reset FIFO free and empty counts.
1735      */
1736     chip->FifoFreeCount  = 0;
1737     /* Free count from first subchannel */
1738     chip->FifoEmptyCount = NV_RD32(&chip->Rop->FifoFree, 0);
1739 }
1740 static void UnloadStateExt
1741 (
1742     RIVA_HW_INST  *chip,
1743     RIVA_HW_STATE *state
1744 )
1745 {
1746     /*
1747      * Save current HW state.
1748      */
1749     VGA_WR08(chip->PCIO, 0x03D4, 0x19);
1750     state->repaint0     = VGA_RD08(chip->PCIO, 0x03D5);
1751     VGA_WR08(chip->PCIO, 0x03D4, 0x1A);
1752     state->repaint1     = VGA_RD08(chip->PCIO, 0x03D5);
1753     VGA_WR08(chip->PCIO, 0x03D4, 0x25);
1754     state->screen       = VGA_RD08(chip->PCIO, 0x03D5);
1755     VGA_WR08(chip->PCIO, 0x03D4, 0x28);
1756     state->pixel        = VGA_RD08(chip->PCIO, 0x03D5);
1757     VGA_WR08(chip->PCIO, 0x03D4, 0x2D);
1758     state->horiz        = VGA_RD08(chip->PCIO, 0x03D5);
1759     VGA_WR08(chip->PCIO, 0x03D4, 0x1B);
1760     state->arbitration0 = VGA_RD08(chip->PCIO, 0x03D5);
1761     VGA_WR08(chip->PCIO, 0x03D4, 0x20);
1762     state->arbitration1 = VGA_RD08(chip->PCIO, 0x03D5);
1763     VGA_WR08(chip->PCIO, 0x03D4, 0x30);
1764     state->cursor0      = VGA_RD08(chip->PCIO, 0x03D5);
1765     VGA_WR08(chip->PCIO, 0x03D4, 0x31);
1766     state->cursor1      = VGA_RD08(chip->PCIO, 0x03D5);
1767     VGA_WR08(chip->PCIO, 0x03D4, 0x2F);
1768     state->cursor2      = VGA_RD08(chip->PCIO, 0x03D5);
1769     VGA_WR08(chip->PCIO, 0x03D4, 0x39);
1770     state->interlace    = VGA_RD08(chip->PCIO, 0x03D5);
1771     state->vpll         = NV_RD32(chip->PRAMDAC0, 0x00000508);
1772     state->vpll2        = NV_RD32(chip->PRAMDAC0, 0x00000520);
1773     state->pllsel       = NV_RD32(chip->PRAMDAC0, 0x0000050C);
1774     state->general      = NV_RD32(chip->PRAMDAC, 0x00000600);
1775     state->scale        = NV_RD32(chip->PRAMDAC, 0x00000848);
1776     state->config       = NV_RD32(chip->PFB, 0x00000200);
1777     switch (chip->Architecture)
1778     {
1779         case NV_ARCH_03:
1780             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000630);
1781             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000634);
1782             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000638);
1783             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000063C);
1784             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000650);
1785             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000654);
1786             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000658);
1787             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000065C);
1788             break;
1789         case NV_ARCH_04:
1790             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000640);
1791             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000644);
1792             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000648);
1793             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000064C);
1794             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000670);
1795             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000674);
1796             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000678);
1797             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000067C);
1798             break;
1799         case NV_ARCH_10:
1800         case NV_ARCH_20:
1801         case NV_ARCH_30:
1802             state->offset0  = NV_RD32(chip->PGRAPH, 0x00000640);
1803             state->offset1  = NV_RD32(chip->PGRAPH, 0x00000644);
1804             state->offset2  = NV_RD32(chip->PGRAPH, 0x00000648);
1805             state->offset3  = NV_RD32(chip->PGRAPH, 0x0000064C);
1806             state->pitch0   = NV_RD32(chip->PGRAPH, 0x00000670);
1807             state->pitch1   = NV_RD32(chip->PGRAPH, 0x00000674);
1808             state->pitch2   = NV_RD32(chip->PGRAPH, 0x00000678);
1809             state->pitch3   = NV_RD32(chip->PGRAPH, 0x0000067C);
1810             if(chip->twoHeads) {
1811                state->head     = NV_RD32(chip->PCRTC0, 0x00000860);
1812                state->head2    = NV_RD32(chip->PCRTC0, 0x00002860);
1813                VGA_WR08(chip->PCIO, 0x03D4, 0x44);
1814                state->crtcOwner = VGA_RD08(chip->PCIO, 0x03D5);
1815             }
1816             VGA_WR08(chip->PCIO, 0x03D4, 0x41);
1817             state->extra = VGA_RD08(chip->PCIO, 0x03D5);
1818             state->cursorConfig = NV_RD32(chip->PCRTC, 0x00000810);
1819
1820             if((chip->Chipset & 0x0ff0) == 0x0110) {
1821                 state->dither = NV_RD32(chip->PRAMDAC, 0x0528);
1822             } else
1823             if((chip->Chipset & 0x0ff0) >= 0x0170) {
1824                 state->dither = NV_RD32(chip->PRAMDAC, 0x083C);
1825             }
1826             break;
1827     }
1828 }
1829 static void SetStartAddress
1830 (
1831     RIVA_HW_INST *chip,
1832     unsigned      start
1833 )
1834 {
1835     NV_WR32(chip->PCRTC, 0x800, start);
1836 }
1837
1838 static void SetStartAddress3
1839 (
1840     RIVA_HW_INST *chip,
1841     unsigned      start
1842 )
1843 {
1844     int offset = start >> 2;
1845     int pan    = (start & 3) << 1;
1846     unsigned char tmp;
1847
1848     /*
1849      * Unlock extended registers.
1850      */
1851     chip->LockUnlock(chip, 0);
1852     /*
1853      * Set start address.
1854      */
1855     VGA_WR08(chip->PCIO, 0x3D4, 0x0D); VGA_WR08(chip->PCIO, 0x3D5, offset);
1856     offset >>= 8;
1857     VGA_WR08(chip->PCIO, 0x3D4, 0x0C); VGA_WR08(chip->PCIO, 0x3D5, offset);
1858     offset >>= 8;
1859     VGA_WR08(chip->PCIO, 0x3D4, 0x19); tmp = VGA_RD08(chip->PCIO, 0x3D5);
1860     VGA_WR08(chip->PCIO, 0x3D5, (offset & 0x01F) | (tmp & ~0x1F));
1861     VGA_WR08(chip->PCIO, 0x3D4, 0x2D); tmp = VGA_RD08(chip->PCIO, 0x3D5);
1862     VGA_WR08(chip->PCIO, 0x3D5, (offset & 0x60) | (tmp & ~0x60));
1863     /*
1864      * 4 pixel pan register.
1865      */
1866     offset = VGA_RD08(chip->PCIO, chip->IO + 0x0A);
1867     VGA_WR08(chip->PCIO, 0x3C0, 0x13);
1868     VGA_WR08(chip->PCIO, 0x3C0, pan);
1869 }
1870 static void nv3SetSurfaces2D
1871 (
1872     RIVA_HW_INST *chip,
1873     unsigned     surf0,
1874     unsigned     surf1
1875 )
1876 {
1877     RivaSurface __iomem *Surface =
1878         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1879
1880     RIVA_FIFO_FREE(*chip,Tri03,5);
1881     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1882     NV_WR32(&Surface->Offset, 0, surf0);
1883     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1884     NV_WR32(&Surface->Offset, 0, surf1);
1885     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000013);
1886 }
1887 static void nv4SetSurfaces2D
1888 (
1889     RIVA_HW_INST *chip,
1890     unsigned     surf0,
1891     unsigned     surf1
1892 )
1893 {
1894     RivaSurface __iomem *Surface =
1895         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1896
1897     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1898     NV_WR32(&Surface->Offset, 0, surf0);
1899     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1900     NV_WR32(&Surface->Offset, 0, surf1);
1901     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1902 }
1903 static void nv10SetSurfaces2D
1904 (
1905     RIVA_HW_INST *chip,
1906     unsigned     surf0,
1907     unsigned     surf1
1908 )
1909 {
1910     RivaSurface __iomem *Surface =
1911         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1912
1913     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000003);
1914     NV_WR32(&Surface->Offset, 0, surf0);
1915     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000004);
1916     NV_WR32(&Surface->Offset, 0, surf1);
1917     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1918 }
1919 static void nv3SetSurfaces3D
1920 (
1921     RIVA_HW_INST *chip,
1922     unsigned     surf0,
1923     unsigned     surf1
1924 )
1925 {
1926     RivaSurface __iomem *Surface =
1927         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1928
1929     RIVA_FIFO_FREE(*chip,Tri03,5);
1930     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000005);
1931     NV_WR32(&Surface->Offset, 0, surf0);
1932     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000006);
1933     NV_WR32(&Surface->Offset, 0, surf1);
1934     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000013);
1935 }
1936 static void nv4SetSurfaces3D
1937 (
1938     RIVA_HW_INST *chip,
1939     unsigned     surf0,
1940     unsigned     surf1
1941 )
1942 {
1943     RivaSurface __iomem *Surface =
1944         (RivaSurface __iomem *)&(chip->FIFO[0x0000E000/4]);
1945
1946     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000005);
1947     NV_WR32(&Surface->Offset, 0, surf0);
1948     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000006);
1949     NV_WR32(&Surface->Offset, 0, surf1);
1950     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1951 }
1952 static void nv10SetSurfaces3D
1953 (
1954     RIVA_HW_INST *chip,
1955     unsigned     surf0,
1956     unsigned     surf1
1957 )
1958 {
1959     RivaSurface3D __iomem *Surfaces3D =
1960         (RivaSurface3D __iomem *)&(chip->FIFO[0x0000E000/4]);
1961
1962     RIVA_FIFO_FREE(*chip,Tri03,4);
1963     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000007);
1964     NV_WR32(&Surfaces3D->RenderBufferOffset, 0, surf0);
1965     NV_WR32(&Surfaces3D->ZBufferOffset, 0, surf1);
1966     NV_WR32(&chip->FIFO[0x00003800], 0, 0x80000014);
1967 }
1968
1969 /****************************************************************************\
1970 *                                                                            *
1971 *                      Probe RIVA Chip Configuration                         *
1972 *                                                                            *
1973 \****************************************************************************/
1974
1975 static void nv3GetConfig
1976 (
1977     RIVA_HW_INST *chip
1978 )
1979 {
1980     /*
1981      * Fill in chip configuration.
1982      */
1983     if (NV_RD32(&chip->PFB[0x00000000/4], 0) & 0x00000020)
1984     {
1985         if (((NV_RD32(chip->PMC, 0x00000000) & 0xF0) == 0x20)
1986          && ((NV_RD32(chip->PMC, 0x00000000) & 0x0F) >= 0x02))
1987         {
1988             /*
1989              * SDRAM 128 ZX.
1990              */
1991             chip->RamBandwidthKBytesPerSec = 800000;
1992             switch (NV_RD32(chip->PFB, 0x00000000) & 0x03)
1993             {
1994                 case 2:
1995                     chip->RamAmountKBytes = 1024 * 4;
1996                     break;
1997                 case 1:
1998                     chip->RamAmountKBytes = 1024 * 2;
1999                     break;
2000                 default:
2001                     chip->RamAmountKBytes = 1024 * 8;
2002                     break;
2003             }
2004         }
2005         else
2006         {
2007             chip->RamBandwidthKBytesPerSec = 1000000;
2008             chip->RamAmountKBytes          = 1024 * 8;
2009         }
2010     }
2011     else
2012     {
2013         /*
2014          * SGRAM 128.
2015          */
2016         chip->RamBandwidthKBytesPerSec = 1000000;
2017         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003)
2018         {
2019             case 0:
2020                 chip->RamAmountKBytes = 1024 * 8;
2021                 break;
2022             case 2:
2023                 chip->RamAmountKBytes = 1024 * 4;
2024                 break;
2025             default:
2026                 chip->RamAmountKBytes = 1024 * 2;
2027                 break;
2028         }
2029     }
2030     chip->CrystalFreqKHz   = (NV_RD32(chip->PEXTDEV, 0x00000000) & 0x00000040) ? 14318 : 13500;
2031     chip->CURSOR           = &(chip->PRAMIN[0x00008000/4 - 0x0800/4]);
2032     chip->VBlankBit        = 0x00000100;
2033     chip->MaxVClockFreqKHz = 256000;
2034     /*
2035      * Set chip functions.
2036      */
2037     chip->Busy            = nv3Busy;
2038     chip->ShowHideCursor  = ShowHideCursor;
2039     chip->LoadStateExt    = LoadStateExt;
2040     chip->UnloadStateExt  = UnloadStateExt;
2041     chip->SetStartAddress = SetStartAddress3;
2042     chip->SetSurfaces2D   = nv3SetSurfaces2D;
2043     chip->SetSurfaces3D   = nv3SetSurfaces3D;
2044     chip->LockUnlock      = nv3LockUnlock;
2045 }
2046 static void nv4GetConfig
2047 (
2048     RIVA_HW_INST *chip
2049 )
2050 {
2051     /*
2052      * Fill in chip configuration.
2053      */
2054     if (NV_RD32(chip->PFB, 0x00000000) & 0x00000100)
2055     {
2056         chip->RamAmountKBytes = ((NV_RD32(chip->PFB, 0x00000000) >> 12) & 0x0F) * 1024 * 2
2057                               + 1024 * 2;
2058     }
2059     else
2060     {
2061         switch (NV_RD32(chip->PFB, 0x00000000) & 0x00000003)
2062         {
2063             case 0:
2064                 chip->RamAmountKBytes = 1024 * 32;
2065                 break;
2066             case 1:
2067                 chip->RamAmountKBytes = 1024 * 4;
2068                 break;
2069             case 2:
2070                 chip->RamAmountKBytes = 1024 * 8;
2071                 break;
2072             case 3:
2073             default:
2074                 chip->RamAmountKBytes = 1024 * 16;
2075                 break;
2076         }
2077     }
2078     switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003)
2079     {
2080         case 3:
2081             chip->RamBandwidthKBytesPerSec = 800000;
2082             break;
2083         default:
2084             chip->RamBandwidthKBytesPerSec = 1000000;
2085             break;
2086     }
2087     chip->CrystalFreqKHz   = (NV_RD32(chip->PEXTDEV, 0x00000000) & 0x00000040) ? 14318 : 13500;
2088     chip->CURSOR           = &(chip->PRAMIN[0x00010000/4 - 0x0800/4]);
2089     chip->VBlankBit        = 0x00000001;
2090     chip->MaxVClockFreqKHz = 350000;
2091     /*
2092      * Set chip functions.
2093      */
2094     chip->Busy            = nv4Busy;
2095     chip->ShowHideCursor  = ShowHideCursor;
2096     chip->LoadStateExt    = LoadStateExt;
2097     chip->UnloadStateExt  = UnloadStateExt;
2098     chip->SetStartAddress = SetStartAddress;
2099     chip->SetSurfaces2D   = nv4SetSurfaces2D;
2100     chip->SetSurfaces3D   = nv4SetSurfaces3D;
2101     chip->LockUnlock      = nv4LockUnlock;
2102 }
2103 static void nv10GetConfig
2104 (
2105     RIVA_HW_INST *chip,
2106     unsigned int chipset
2107 )
2108 {
2109     struct pci_dev* dev;
2110     int amt;
2111
2112 #ifdef __BIG_ENDIAN
2113     /* turn on big endian register access */
2114     if(!(NV_RD32(chip->PMC, 0x00000004) & 0x01000001))
2115         NV_WR32(chip->PMC, 0x00000004, 0x01000001);
2116 #endif
2117
2118     /*
2119      * Fill in chip configuration.
2120      */
2121     if(chipset == NV_CHIP_IGEFORCE2) {
2122         dev = pci_get_bus_and_slot(0, 1);
2123         pci_read_config_dword(dev, 0x7C, &amt);
2124         pci_dev_put(dev);
2125         chip->RamAmountKBytes = (((amt >> 6) & 31) + 1) * 1024;
2126     } else if(chipset == NV_CHIP_0x01F0) {
2127         dev = pci_get_bus_and_slot(0, 1);
2128         pci_read_config_dword(dev, 0x84, &amt);
2129         pci_dev_put(dev);
2130         chip->RamAmountKBytes = (((amt >> 4) & 127) + 1) * 1024;
2131     } else {
2132         switch ((NV_RD32(chip->PFB, 0x0000020C) >> 20) & 0x000000FF)
2133         {
2134             case 0x02:
2135                 chip->RamAmountKBytes = 1024 * 2;
2136                 break;
2137             case 0x04:
2138                 chip->RamAmountKBytes = 1024 * 4;
2139                 break;
2140             case 0x08:
2141                 chip->RamAmountKBytes = 1024 * 8;
2142                 break;
2143             case 0x10:
2144                 chip->RamAmountKBytes = 1024 * 16;
2145                 break;
2146             case 0x20:
2147                 chip->RamAmountKBytes = 1024 * 32;
2148                 break;
2149             case 0x40:
2150                 chip->RamAmountKBytes = 1024 * 64;
2151                 break;
2152             case 0x80:
2153                 chip->RamAmountKBytes = 1024 * 128;
2154                 break;
2155             default:
2156                 chip->RamAmountKBytes = 1024 * 16;
2157                 break;
2158         }
2159     }
2160     switch ((NV_RD32(chip->PFB, 0x00000000) >> 3) & 0x00000003)
2161     {
2162         case 3:
2163             chip->RamBandwidthKBytesPerSec = 800000;
2164             break;
2165         default:
2166             chip->RamBandwidthKBytesPerSec = 1000000;
2167             break;
2168     }
2169     chip->CrystalFreqKHz = (NV_RD32(chip->PEXTDEV, 0x0000) & (1 << 6)) ?
2170         14318 : 13500;
2171
2172     switch (chipset & 0x0ff0) {
2173     case 0x0170:
2174     case 0x0180:
2175     case 0x01F0:
2176     case 0x0250:
2177     case 0x0280:
2178     case 0x0300:
2179     case 0x0310:
2180     case 0x0320:
2181     case 0x0330:
2182     case 0x0340:
2183        if(NV_RD32(chip->PEXTDEV, 0x0000) & (1 << 22))
2184            chip->CrystalFreqKHz = 27000;
2185        break;
2186     default:
2187        break;
2188     }
2189
2190     chip->CursorStart      = (chip->RamAmountKBytes - 128) * 1024;
2191     chip->CURSOR           = NULL;  /* can't set this here */
2192     chip->VBlankBit        = 0x00000001;
2193     chip->MaxVClockFreqKHz = 350000;
2194     /*
2195      * Set chip functions.
2196      */
2197     chip->Busy            = nv10Busy;
2198     chip->ShowHideCursor  = ShowHideCursor;
2199     chip->LoadStateExt    = LoadStateExt;
2200     chip->UnloadStateExt  = UnloadStateExt;
2201     chip->SetStartAddress = SetStartAddress;
2202     chip->SetSurfaces2D   = nv10SetSurfaces2D;
2203     chip->SetSurfaces3D   = nv10SetSurfaces3D;
2204     chip->LockUnlock      = nv4LockUnlock;
2205
2206     switch(chipset & 0x0ff0) {
2207     case 0x0110:
2208     case 0x0170:
2209     case 0x0180:
2210     case 0x01F0:
2211     case 0x0250:
2212     case 0x0280:
2213     case 0x0300:
2214     case 0x0310:
2215     case 0x0320:
2216     case 0x0330:
2217     case 0x0340:
2218         chip->twoHeads = TRUE;
2219         break;
2220     default:
2221         chip->twoHeads = FALSE;
2222         break;
2223     }
2224 }
2225 int RivaGetConfig
2226 (
2227     RIVA_HW_INST *chip,
2228     unsigned int chipset
2229 )
2230 {
2231     /*
2232      * Save this so future SW know whats it's dealing with.
2233      */
2234     chip->Version = RIVA_SW_VERSION;
2235     /*
2236      * Chip specific configuration.
2237      */
2238     switch (chip->Architecture)
2239     {
2240         case NV_ARCH_03:
2241             nv3GetConfig(chip);
2242             break;
2243         case NV_ARCH_04:
2244             nv4GetConfig(chip);
2245             break;
2246         case NV_ARCH_10:
2247         case NV_ARCH_20:
2248         case NV_ARCH_30:
2249             nv10GetConfig(chip, chipset);
2250             break;
2251         default:
2252             return (-1);
2253     }
2254     chip->Chipset = chipset;
2255     /*
2256      * Fill in FIFO pointers.
2257      */
2258     chip->Rop    = (RivaRop __iomem         *)&(chip->FIFO[0x00000000/4]);
2259     chip->Clip   = (RivaClip __iomem        *)&(chip->FIFO[0x00002000/4]);
2260     chip->Patt   = (RivaPattern __iomem     *)&(chip->FIFO[0x00004000/4]);
2261     chip->Pixmap = (RivaPixmap __iomem      *)&(chip->FIFO[0x00006000/4]);
2262     chip->Blt    = (RivaScreenBlt __iomem   *)&(chip->FIFO[0x00008000/4]);
2263     chip->Bitmap = (RivaBitmap __iomem      *)&(chip->FIFO[0x0000A000/4]);
2264     chip->Line   = (RivaLine __iomem        *)&(chip->FIFO[0x0000C000/4]);
2265     chip->Tri03  = (RivaTexturedTriangle03 __iomem *)&(chip->FIFO[0x0000E000/4]);
2266     return (0);
2267 }
2268