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   1 /*
   2  * linux/drivers/video/nvidia/nvidia.c - nVidia fb driver
   3  *
   4  * Copyright 2004 Antonino Daplas <adaplas@pol.net>
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file COPYING in the main directory of this archive
   8  * for more details.
   9  *
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/kernel.h>
  14 #include <linux/errno.h>
  15 #include <linux/string.h>
  16 #include <linux/mm.h>
  17 #include <linux/slab.h>
  18 #include <linux/delay.h>
  19 #include <linux/fb.h>
  20 #include <linux/init.h>
  21 #include <linux/pci.h>
  22 #include <linux/console.h>
  23 #include <linux/backlight.h>
  24 #ifdef CONFIG_MTRR
  25 #include <asm/mtrr.h>
  26 #endif
  27 #ifdef CONFIG_PPC_OF
  28 #include <asm/prom.h>
  29 #include <asm/pci-bridge.h>
  30 #endif
  31 #ifdef CONFIG_BOOTX_TEXT
  32 #include <asm/btext.h>
  33 #endif
  34
  35 #include "nv_local.h"
  36 #include "nv_type.h"
  37 #include "nv_proto.h"
  38 #include "nv_dma.h"
  39
  40 #undef CONFIG_FB_NVIDIA_DEBUG
  41 #ifdef CONFIG_FB_NVIDIA_DEBUG
  42 #define NVTRACE          printk
  43 #else
  44 #define NVTRACE          if (0) printk
  45 #endif
  46
  47 #define NVTRACE_ENTER(...)  NVTRACE("%s START\n", __FUNCTION__)
  48 #define NVTRACE_LEAVE(...)  NVTRACE("%s END\n", __FUNCTION__)
  49
  50 #ifdef CONFIG_FB_NVIDIA_DEBUG
  51 #define assert(expr) \
  52         if (!(expr)) { \
  53         printk( "Assertion failed! %s,%s,%s,line=%d\n",\
  54         #expr,__FILE__,__FUNCTION__,__LINE__); \
  55         BUG(); \
  56         }
  57 #else
  58 #define assert(expr)
  59 #endif
  60
  61 #define PFX "nvidiafb: "
  62
  63 /* HW cursor parameters */
  64 #define MAX_CURS                32
  65
  66 static struct pci_device_id nvidiafb_pci_tbl[] = {
  67         {PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
  68          PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0},
  69         { 0, }
  70 };
  71 MODULE_DEVICE_TABLE(pci, nvidiafb_pci_tbl);
  72
  73 /* command line data, set in nvidiafb_setup() */
  74 static int flatpanel __devinitdata = -1;        /* Autodetect later */
  75 static int fpdither __devinitdata = -1;
  76 static int forceCRTC __devinitdata = -1;
  77 static int hwcur __devinitdata = 0;
  78 static int noaccel __devinitdata = 0;
  79 static int noscale __devinitdata = 0;
  80 static int paneltweak __devinitdata = 0;
  81 static int vram __devinitdata = 0;
  82 static int bpp __devinitdata = 8;
  83 #ifdef CONFIG_MTRR
  84 static int nomtrr __devinitdata = 0;
  85 #endif
  86 #ifdef CONFIG_PMAC_BACKLIGHT
  87 static int backlight __devinitdata = 1;
  88 #else
  89 static int backlight __devinitdata = 0;
  90 #endif
  91
  92 static char *mode_option __devinitdata = NULL;
  93
  94 static struct fb_fix_screeninfo __devinitdata nvidiafb_fix = {
  95         .type = FB_TYPE_PACKED_PIXELS,
  96         .xpanstep = 8,
  97         .ypanstep = 1,
  98 };
  99
 100 static struct fb_var_screeninfo __devinitdata nvidiafb_default_var = {
 101         .xres = 640,
 102         .yres = 480,
 103         .xres_virtual = 640,
 104         .yres_virtual = 480,
 105         .bits_per_pixel = 8,
 106         .red = {0, 8, 0},
 107         .green = {0, 8, 0},
 108         .blue = {0, 8, 0},
 109         .transp = {0, 0, 0},
 110         .activate = FB_ACTIVATE_NOW,
 111         .height = -1,
 112         .width = -1,
 113         .pixclock = 39721,
 114         .left_margin = 40,
 115         .right_margin = 24,
 116         .upper_margin = 32,
 117         .lower_margin = 11,
 118         .hsync_len = 96,
 119         .vsync_len = 2,
 120         .vmode = FB_VMODE_NONINTERLACED
 121 };
 122
 123 static void nvidiafb_load_cursor_image(struct nvidia_par *par, u8 * data8,
 124                                        u16 bg, u16 fg, u32 w, u32 h)
 125 {
 126         u32 *data = (u32 *) data8;
 127         int i, j, k = 0;
 128         u32 b, tmp;
 129
 130         w = (w + 1) & ~1;
 131
 132         for (i = 0; i < h; i++) {
 133                 b = *data++;
 134                 reverse_order(&b);
 135
 136                 for (j = 0; j < w / 2; j++) {
 137                         tmp = 0;
 138 #if defined (__BIG_ENDIAN)
 139                         tmp = (b & (1 << 31)) ? fg << 16 : bg << 16;
 140                         b <<= 1;
 141                         tmp |= (b & (1 << 31)) ? fg : bg;
 142                         b <<= 1;
 143 #else
 144                         tmp = (b & 1) ? fg : bg;
 145                         b >>= 1;
 146                         tmp |= (b & 1) ? fg << 16 : bg << 16;
 147                         b >>= 1;
 148 #endif
 149                         NV_WR32(&par->CURSOR[k++], 0, tmp);
 150                 }
 151                 k += (MAX_CURS - w) / 2;
 152         }
 153 }
 154
 155 static void nvidia_write_clut(struct nvidia_par *par,
 156                               u8 regnum, u8 red, u8 green, u8 blue)
 157 {
 158         NVWriteDacMask(par, 0xff);
 159         NVWriteDacWriteAddr(par, regnum);
 160         NVWriteDacData(par, red);
 161         NVWriteDacData(par, green);
 162         NVWriteDacData(par, blue);
 163 }
 164
 165 static void nvidia_read_clut(struct nvidia_par *par,
 166                              u8 regnum, u8 * red, u8 * green, u8 * blue)
 167 {
 168         NVWriteDacMask(par, 0xff);
 169         NVWriteDacReadAddr(par, regnum);
 170         *red = NVReadDacData(par);
 171         *green = NVReadDacData(par);
 172         *blue = NVReadDacData(par);
 173 }
 174
 175 static int nvidia_panel_tweak(struct nvidia_par *par,
 176                               struct _riva_hw_state *state)
 177 {
 178         int tweak = 0;
 179
 180    if (par->paneltweak) {
 181            tweak = par->paneltweak;
 182    } else {
 183            /* begin flat panel hacks */
 184            /* This is unfortunate, but some chips need this register
 185               tweaked or else you get artifacts where adjacent pixels are
 186               swapped.  There are no hard rules for what to set here so all
 187               we can do is experiment and apply hacks. */
 188
 189            if(((par->Chipset & 0xffff) == 0x0328) && (state->bpp == 32)) {
 190                    /* At least one NV34 laptop needs this workaround. */
 191                    tweak = -1;
 192            }
 193
 194            if((par->Chipset & 0xfff0) == 0x0310) {
 195                    tweak = 1;
 196            }
 197            /* end flat panel hacks */
 198    }
 199
 200    return tweak;
 201 }
 202
 203 static void nvidia_screen_off(struct nvidia_par *par, int on)
 204 {
 205         unsigned char tmp;
 206
 207         if (on) {
 208                 /*
 209                  * Turn off screen and disable sequencer.
 210                  */
 211                 tmp = NVReadSeq(par, 0x01);
 212
 213                 NVWriteSeq(par, 0x00, 0x01);            /* Synchronous Reset */
 214                 NVWriteSeq(par, 0x01, tmp | 0x20);      /* disable the display */
 215         } else {
 216                 /*
 217                  * Reenable sequencer, then turn on screen.
 218                  */
 219
 220                 tmp = NVReadSeq(par, 0x01);
 221
 222                 NVWriteSeq(par, 0x01, tmp & ~0x20);     /* reenable display */
 223                 NVWriteSeq(par, 0x00, 0x03);            /* End Reset */
 224         }
 225 }
 226
 227 static void nvidia_save_vga(struct nvidia_par *par,
 228                             struct _riva_hw_state *state)
 229 {
 230         int i;
 231
 232         NVTRACE_ENTER();
 233         NVLockUnlock(par, 0);
 234
 235         NVUnloadStateExt(par, state);
 236
 237         state->misc_output = NVReadMiscOut(par);
 238
 239         for (i = 0; i < NUM_CRT_REGS; i++)
 240                 state->crtc[i] = NVReadCrtc(par, i);
 241
 242         for (i = 0; i < NUM_ATC_REGS; i++)
 243                 state->attr[i] = NVReadAttr(par, i);
 244
 245         for (i = 0; i < NUM_GRC_REGS; i++)
 246                 state->gra[i] = NVReadGr(par, i);
 247
 248         for (i = 0; i < NUM_SEQ_REGS; i++)
 249                 state->seq[i] = NVReadSeq(par, i);
 250         NVTRACE_LEAVE();
 251 }
 252
 253 #undef DUMP_REG
 254
 255 static void nvidia_write_regs(struct nvidia_par *par,
 256                               struct _riva_hw_state *state)
 257 {
 258         int i;
 259
 260         NVTRACE_ENTER();
 261
 262         NVLoadStateExt(par, state);
 263
 264         NVWriteMiscOut(par, state->misc_output);
 265
 266         for (i = 1; i < NUM_SEQ_REGS; i++) {
 267 #ifdef DUMP_REG
 268                 printk(" SEQ[%02x] = %08x\n", i, state->seq[i]);
 269 #endif
 270                 NVWriteSeq(par, i, state->seq[i]);
 271         }
 272
 273         /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 of CRTC[17] */
 274         NVWriteCrtc(par, 0x11, state->crtc[0x11] & ~0x80);
 275
 276         for (i = 0; i < NUM_CRT_REGS; i++) {
 277                 switch (i) {
 278                 case 0x19:
 279                 case 0x20 ... 0x40:
 280                         break;
 281                 default:
 282 #ifdef DUMP_REG
 283                         printk("CRTC[%02x] = %08x\n", i, state->crtc[i]);
 284 #endif
 285                         NVWriteCrtc(par, i, state->crtc[i]);
 286                 }
 287         }
 288
 289         for (i = 0; i < NUM_GRC_REGS; i++) {
 290 #ifdef DUMP_REG
 291                 printk(" GRA[%02x] = %08x\n", i, state->gra[i]);
 292 #endif
 293                 NVWriteGr(par, i, state->gra[i]);
 294         }
 295
 296         for (i = 0; i < NUM_ATC_REGS; i++) {
 297 #ifdef DUMP_REG
 298                 printk("ATTR[%02x] = %08x\n", i, state->attr[i]);
 299 #endif
 300                 NVWriteAttr(par, i, state->attr[i]);
 301         }
 302
 303         NVTRACE_LEAVE();
 304 }
 305
 306 static int nvidia_calc_regs(struct fb_info *info)
 307 {
 308         struct nvidia_par *par = info->par;
 309         struct _riva_hw_state *state = &par->ModeReg;
 310         int i, depth = fb_get_color_depth(&info->var, &info->fix);
 311         int h_display = info->var.xres / 8 - 1;
 312         int h_start = (info->var.xres + info->var.right_margin) / 8 - 1;
 313         int h_end = (info->var.xres + info->var.right_margin +
 314                      info->var.hsync_len) / 8 - 1;
 315         int h_total = (info->var.xres + info->var.right_margin +
 316                        info->var.hsync_len + info->var.left_margin) / 8 - 5;
 317         int h_blank_s = h_display;
 318         int h_blank_e = h_total + 4;
 319         int v_display = info->var.yres - 1;
 320         int v_start = info->var.yres + info->var.lower_margin - 1;
 321         int v_end = (info->var.yres + info->var.lower_margin +
 322                      info->var.vsync_len) - 1;
 323         int v_total = (info->var.yres + info->var.lower_margin +
 324                        info->var.vsync_len + info->var.upper_margin) - 2;
 325         int v_blank_s = v_display;
 326         int v_blank_e = v_total + 1;
 327
 328         /*
 329          * Set all CRTC values.
 330          */
 331
 332         if (info->var.vmode & FB_VMODE_INTERLACED)
 333                 v_total |= 1;
 334
 335         if (par->FlatPanel == 1) {
 336                 v_start = v_total - 3;
 337                 v_end = v_total - 2;
 338                 v_blank_s = v_start;
 339                 h_start = h_total - 5;
 340                 h_end = h_total - 2;
 341                 h_blank_e = h_total + 4;
 342         }
 343
 344         state->crtc[0x0] = Set8Bits(h_total);
 345         state->crtc[0x1] = Set8Bits(h_display);
 346         state->crtc[0x2] = Set8Bits(h_blank_s);
 347         state->crtc[0x3] = SetBitField(h_blank_e, 4: 0, 4:0)
 348                 | SetBit(7);
 349         state->crtc[0x4] = Set8Bits(h_start);
 350         state->crtc[0x5] = SetBitField(h_blank_e, 5: 5, 7:7)
 351                 | SetBitField(h_end, 4: 0, 4:0);
 352         state->crtc[0x6] = SetBitField(v_total, 7: 0, 7:0);
 353         state->crtc[0x7] = SetBitField(v_total, 8: 8, 0:0)
 354                 | SetBitField(v_display, 8: 8, 1:1)
 355                 | SetBitField(v_start, 8: 8, 2:2)
 356                 | SetBitField(v_blank_s, 8: 8, 3:3)
 357                 | SetBit(4)
 358                 | SetBitField(v_total, 9: 9, 5:5)
 359                 | SetBitField(v_display, 9: 9, 6:6)
 360                 | SetBitField(v_start, 9: 9, 7:7);
 361         state->crtc[0x9] = SetBitField(v_blank_s, 9: 9, 5:5)
 362                 | SetBit(6)
 363                 | ((info->var.vmode & FB_VMODE_DOUBLE) ? 0x80 : 0x00);
 364         state->crtc[0x10] = Set8Bits(v_start);
 365         state->crtc[0x11] = SetBitField(v_end, 3: 0, 3:0) | SetBit(5);
 366         state->crtc[0x12] = Set8Bits(v_display);
 367         state->crtc[0x13] = ((info->var.xres_virtual / 8) *
 368                              (info->var.bits_per_pixel / 8));
 369         state->crtc[0x15] = Set8Bits(v_blank_s);
 370         state->crtc[0x16] = Set8Bits(v_blank_e);
 371
 372         state->attr[0x10] = 0x01;
 373
 374         if (par->Television)
 375                 state->attr[0x11] = 0x00;
 376
 377         state->screen = SetBitField(h_blank_e, 6: 6, 4:4)
 378                 | SetBitField(v_blank_s, 10: 10, 3:3)
 379                 | SetBitField(v_start, 10: 10, 2:2)
 380                 | SetBitField(v_display, 10: 10, 1:1)
 381                 | SetBitField(v_total, 10: 10, 0:0);
 382
 383         state->horiz = SetBitField(h_total, 8: 8, 0:0)
 384                 | SetBitField(h_display, 8: 8, 1:1)
 385                 | SetBitField(h_blank_s, 8: 8, 2:2)
 386                 | SetBitField(h_start, 8: 8, 3:3);
 387
 388         state->extra = SetBitField(v_total, 11: 11, 0:0)
 389                 | SetBitField(v_display, 11: 11, 2:2)
 390                 | SetBitField(v_start, 11: 11, 4:4)
 391                 | SetBitField(v_blank_s, 11: 11, 6:6);
 392
 393         if (info->var.vmode & FB_VMODE_INTERLACED) {
 394                 h_total = (h_total >> 1) & ~1;
 395                 state->interlace = Set8Bits(h_total);
 396                 state->horiz |= SetBitField(h_total, 8: 8, 4:4);
 397         } else {
 398                 state->interlace = 0xff;        /* interlace off */
 399         }
 400
 401         /*
 402          * Calculate the extended registers.
 403          */
 404
 405         if (depth < 24)
 406                 i = depth;
 407         else
 408                 i = 32;
 409
 410         if (par->Architecture >= NV_ARCH_10)
 411                 par->CURSOR = (volatile u32 __iomem *)(info->screen_base +
 412                                                        par->CursorStart);
 413
 414         if (info->var.sync & FB_SYNC_HOR_HIGH_ACT)
 415                 state->misc_output &= ~0x40;
 416         else
 417                 state->misc_output |= 0x40;
 418         if (info->var.sync & FB_SYNC_VERT_HIGH_ACT)
 419                 state->misc_output &= ~0x80;
 420         else
 421                 state->misc_output |= 0x80;
 422
 423         NVCalcStateExt(par, state, i, info->var.xres_virtual,
 424                        info->var.xres, info->var.yres_virtual,
 425                        1000000000 / info->var.pixclock, info->var.vmode);
 426
 427         state->scale = NV_RD32(par->PRAMDAC, 0x00000848) & 0xfff000ff;
 428         if (par->FlatPanel == 1) {
 429                 state->pixel |= (1 << 7);
 430
 431                 if (!par->fpScaler || (par->fpWidth <= info->var.xres)
 432                     || (par->fpHeight <= info->var.yres)) {
 433                         state->scale |= (1 << 8);
 434                 }
 435
 436                 if (!par->crtcSync_read) {
 437                         state->crtcSync = NV_RD32(par->PRAMDAC, 0x0828);
 438                         par->crtcSync_read = 1;
 439                 }
 440
 441                 par->PanelTweak = nvidia_panel_tweak(par, state);
 442         }
 443
 444         state->vpll = state->pll;
 445         state->vpll2 = state->pll;
 446         state->vpllB = state->pllB;
 447         state->vpll2B = state->pllB;
 448
 449         VGA_WR08(par->PCIO, 0x03D4, 0x1C);
 450         state->fifo = VGA_RD08(par->PCIO, 0x03D5) & ~(1<<5);
 451
 452         if (par->CRTCnumber) {
 453                 state->head = NV_RD32(par->PCRTC0, 0x00000860) & ~0x00001000;
 454                 state->head2 = NV_RD32(par->PCRTC0, 0x00002860) | 0x00001000;
 455                 state->crtcOwner = 3;
 456                 state->pllsel |= 0x20000800;
 457                 state->vpll = NV_RD32(par->PRAMDAC0, 0x00000508);
 458                 if (par->twoStagePLL)
 459                         state->vpllB = NV_RD32(par->PRAMDAC0, 0x00000578);
 460         } else if (par->twoHeads) {
 461                 state->head = NV_RD32(par->PCRTC0, 0x00000860) | 0x00001000;
 462                 state->head2 = NV_RD32(par->PCRTC0, 0x00002860) & ~0x00001000;
 463                 state->crtcOwner = 0;
 464                 state->vpll2 = NV_RD32(par->PRAMDAC0, 0x0520);
 465                 if (par->twoStagePLL)
 466                         state->vpll2B = NV_RD32(par->PRAMDAC0, 0x057C);
 467         }
 468
 469         state->cursorConfig = 0x00000100;
 470
 471         if (info->var.vmode & FB_VMODE_DOUBLE)
 472                 state->cursorConfig |= (1 << 4);
 473
 474         if (par->alphaCursor) {
 475                 if ((par->Chipset & 0x0ff0) != 0x0110)
 476                         state->cursorConfig |= 0x04011000;
 477                 else
 478                         state->cursorConfig |= 0x14011000;
 479                 state->general |= (1 << 29);
 480         } else
 481                 state->cursorConfig |= 0x02000000;
 482
 483         if (par->twoHeads) {
 484                 if ((par->Chipset & 0x0ff0) == 0x0110) {
 485                         state->dither = NV_RD32(par->PRAMDAC, 0x0528) &
 486                             ~0x00010000;
 487                         if (par->FPDither)
 488                                 state->dither |= 0x00010000;
 489                 } else {
 490                         state->dither = NV_RD32(par->PRAMDAC, 0x083C) & ~1;
 491                         if (par->FPDither)
 492                                 state->dither |= 1;
 493                 }
 494         }
 495
 496         state->timingH = 0;
 497         state->timingV = 0;
 498         state->displayV = info->var.xres;
 499
 500         return 0;
 501 }
 502
 503 static void nvidia_init_vga(struct fb_info *info)
 504 {
 505         struct nvidia_par *par = info->par;
 506         struct _riva_hw_state *state = &par->ModeReg;
 507         int i;
 508
 509         for (i = 0; i < 0x10; i++)
 510                 state->attr[i] = i;
 511         state->attr[0x10] = 0x41;
 512         state->attr[0x11] = 0xff;
 513         state->attr[0x12] = 0x0f;
 514         state->attr[0x13] = 0x00;
 515         state->attr[0x14] = 0x00;
 516
 517         memset(state->crtc, 0x00, NUM_CRT_REGS);
 518         state->crtc[0x0a] = 0x20;
 519         state->crtc[0x17] = 0xe3;
 520         state->crtc[0x18] = 0xff;
 521         state->crtc[0x28] = 0x40;
 522
 523         memset(state->gra, 0x00, NUM_GRC_REGS);
 524         state->gra[0x05] = 0x40;
 525         state->gra[0x06] = 0x05;
 526         state->gra[0x07] = 0x0f;
 527         state->gra[0x08] = 0xff;
 528
 529         state->seq[0x00] = 0x03;
 530         state->seq[0x01] = 0x01;
 531         state->seq[0x02] = 0x0f;
 532         state->seq[0x03] = 0x00;
 533         state->seq[0x04] = 0x0e;
 534
 535         state->misc_output = 0xeb;
 536 }
 537
 538 static int nvidiafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 539 {
 540         struct nvidia_par *par = info->par;
 541         u8 data[MAX_CURS * MAX_CURS / 8];
 542         int i, set = cursor->set;
 543         u16 fg, bg;
 544
 545         if (cursor->image.width > MAX_CURS || cursor->image.height > MAX_CURS)
 546                 return -ENXIO;
 547
 548         NVShowHideCursor(par, 0);
 549
 550         if (par->cursor_reset) {
 551                 set = FB_CUR_SETALL;
 552                 par->cursor_reset = 0;
 553         }
 554
 555         if (set & FB_CUR_SETSIZE)
 556                 memset_io(par->CURSOR, 0, MAX_CURS * MAX_CURS * 2);
 557
 558         if (set & FB_CUR_SETPOS) {
 559                 u32 xx, yy, temp;
 560
 561                 yy = cursor->image.dy - info->var.yoffset;
 562                 xx = cursor->image.dx - info->var.xoffset;
 563                 temp = xx & 0xFFFF;
 564                 temp |= yy << 16;
 565
 566                 NV_WR32(par->PRAMDAC, 0x0000300, temp);
 567         }
 568
 569         if (set & (FB_CUR_SETSHAPE | FB_CUR_SETCMAP | FB_CUR_SETIMAGE)) {
 570                 u32 bg_idx = cursor->image.bg_color;
 571                 u32 fg_idx = cursor->image.fg_color;
 572                 u32 s_pitch = (cursor->image.width + 7) >> 3;
 573                 u32 d_pitch = MAX_CURS / 8;
 574                 u8 *dat = (u8 *) cursor->image.data;
 575                 u8 *msk = (u8 *) cursor->mask;
 576                 u8 *src;
 577
 578                 src = kmalloc(s_pitch * cursor->image.height, GFP_ATOMIC);
 579
 580                 if (src) {
 581                         switch (cursor->rop) {
 582                         case ROP_XOR:
 583                                 for (i = 0; i < s_pitch * cursor->image.height; i++)
 584                                         src[i] = dat[i] ^ msk[i];
 585                                 break;
 586                         case ROP_COPY:
 587                         default:
 588                                 for (i = 0; i < s_pitch * cursor->image.height; i++)
 589                                         src[i] = dat[i] & msk[i];
 590                                 break;
 591                         }
 592
 593                         fb_pad_aligned_buffer(data, d_pitch, src, s_pitch,
 594                                                 cursor->image.height);
 595
 596                         bg = ((info->cmap.red[bg_idx] & 0xf8) << 7) |
 597                             ((info->cmap.green[bg_idx] & 0xf8) << 2) |
 598                             ((info->cmap.blue[bg_idx] & 0xf8) >> 3) | 1 << 15;
 599
 600                         fg = ((info->cmap.red[fg_idx] & 0xf8) << 7) |
 601                             ((info->cmap.green[fg_idx] & 0xf8) << 2) |
 602                             ((info->cmap.blue[fg_idx] & 0xf8) >> 3) | 1 << 15;
 603
 604                         NVLockUnlock(par, 0);
 605
 606                         nvidiafb_load_cursor_image(par, data, bg, fg,
 607                                                    cursor->image.width,
 608                                                    cursor->image.height);
 609                         kfree(src);
 610                 }
 611         }
 612
 613         if (cursor->enable)
 614                 NVShowHideCursor(par, 1);
 615
 616         return 0;
 617 }
 618
 619 static int nvidiafb_set_par(struct fb_info *info)
 620 {
 621         struct nvidia_par *par = info->par;
 622
 623         NVTRACE_ENTER();
 624
 625         NVLockUnlock(par, 1);
 626         if (!par->FlatPanel || !par->twoHeads)
 627                 par->FPDither = 0;
 628
 629         if (par->FPDither < 0) {
 630                 if ((par->Chipset & 0x0ff0) == 0x0110)
 631                         par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x0528)
 632                                            & 0x00010000);
 633                 else
 634                         par->FPDither = !!(NV_RD32(par->PRAMDAC, 0x083C) & 1);
 635                 printk(KERN_INFO PFX "Flat panel dithering %s\n",
 636                        par->FPDither ? "enabled" : "disabled");
 637         }
 638
 639         info->fix.visual = (info->var.bits_per_pixel == 8) ?
 640             FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
 641
 642         nvidia_init_vga(info);
 643         nvidia_calc_regs(info);
 644
 645         NVLockUnlock(par, 0);
 646         if (par->twoHeads) {
 647                 VGA_WR08(par->PCIO, 0x03D4, 0x44);
 648                 VGA_WR08(par->PCIO, 0x03D5, par->ModeReg.crtcOwner);
 649                 NVLockUnlock(par, 0);
 650         }
 651
 652         nvidia_screen_off(par, 1);
 653
 654         nvidia_write_regs(par, &par->ModeReg);
 655         NVSetStartAddress(par, 0);
 656
 657 #if defined (__BIG_ENDIAN)
 658         /* turn on LFB swapping */
 659         {
 660                 unsigned char tmp;
 661
 662                 VGA_WR08(par->PCIO, 0x3d4, 0x46);
 663                 tmp = VGA_RD08(par->PCIO, 0x3d5);
 664                 tmp |= (1 << 7);
 665                 VGA_WR08(par->PCIO, 0x3d5, tmp);
 666     }
 667 #endif
 668
 669         info->fix.line_length = (info->var.xres_virtual *
 670                                  info->var.bits_per_pixel) >> 3;
 671         if (info->var.accel_flags) {
 672                 info->fbops->fb_imageblit = nvidiafb_imageblit;
 673                 info->fbops->fb_fillrect = nvidiafb_fillrect;
 674                 info->fbops->fb_copyarea = nvidiafb_copyarea;
 675                 info->fbops->fb_sync = nvidiafb_sync;
 676                 info->pixmap.scan_align = 4;
 677                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
 678                 NVResetGraphics(info);
 679         } else {
 680                 info->fbops->fb_imageblit = cfb_imageblit;
 681                 info->fbops->fb_fillrect = cfb_fillrect;
 682                 info->fbops->fb_copyarea = cfb_copyarea;
 683                 info->fbops->fb_sync = NULL;
 684                 info->pixmap.scan_align = 1;
 685                 info->flags |= FBINFO_HWACCEL_DISABLED;
 686         }
 687
 688         par->cursor_reset = 1;
 689
 690         nvidia_screen_off(par, 0);
 691
 692 #ifdef CONFIG_BOOTX_TEXT
 693         /* Update debug text engine */
 694         btext_update_display(info->fix.smem_start,
 695                              info->var.xres, info->var.yres,
 696                              info->var.bits_per_pixel, info->fix.line_length);
 697 #endif
 698
 699         NVLockUnlock(par, 0);
 700         NVTRACE_LEAVE();
 701         return 0;
 702 }
 703
 704 static int nvidiafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 705                               unsigned blue, unsigned transp,
 706                               struct fb_info *info)
 707 {
 708         struct nvidia_par *par = info->par;
 709         int i;
 710
 711         NVTRACE_ENTER();
 712         if (regno >= (1 << info->var.green.length))
 713                 return -EINVAL;
 714
 715         if (info->var.grayscale) {
 716                 /* gray = 0.30*R + 0.59*G + 0.11*B */
 717                 red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
 718         }
 719
 720         if (regno < 16 && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
 721                 ((u32 *) info->pseudo_palette)[regno] =
 722                     (regno << info->var.red.offset) |
 723                     (regno << info->var.green.offset) |
 724                     (regno << info->var.blue.offset);
 725         }
 726
 727         switch (info->var.bits_per_pixel) {
 728         case 8:
 729                 /* "transparent" stuff is completely ignored. */
 730                 nvidia_write_clut(par, regno, red >> 8, green >> 8, blue >> 8);
 731                 break;
 732         case 16:
 733                 if (info->var.green.length == 5) {
 734                         for (i = 0; i < 8; i++) {
 735                                 nvidia_write_clut(par, regno * 8 + i, red >> 8,
 736                                                   green >> 8, blue >> 8);
 737                         }
 738                 } else {
 739                         u8 r, g, b;
 740
 741                         if (regno < 32) {
 742                                 for (i = 0; i < 8; i++) {
 743                                         nvidia_write_clut(par, regno * 8 + i,
 744                                                           red >> 8, green >> 8,
 745                                                           blue >> 8);
 746                                 }
 747                         }
 748
 749                         nvidia_read_clut(par, regno * 4, &r, &g, &b);
 750
 751                         for (i = 0; i < 4; i++)
 752                                 nvidia_write_clut(par, regno * 4 + i, r,
 753                                                   green >> 8, b);
 754                 }
 755                 break;
 756         case 32:
 757                 nvidia_write_clut(par, regno, red >> 8, green >> 8, blue >> 8);
 758                 break;
 759         default:
 760                 /* do nothing */
 761                 break;
 762         }
 763
 764         NVTRACE_LEAVE();
 765         return 0;
 766 }
 767
 768 static int nvidiafb_check_var(struct fb_var_screeninfo *var,
 769                               struct fb_info *info)
 770 {
 771         struct nvidia_par *par = info->par;
 772         int memlen, vramlen, mode_valid = 0;
 773         int pitch, err = 0;
 774
 775         NVTRACE_ENTER();
 776
 777         var->transp.offset = 0;
 778         var->transp.length = 0;
 779
 780         var->xres &= ~7;
 781
 782         if (var->bits_per_pixel <= 8)
 783                 var->bits_per_pixel = 8;
 784         else if (var->bits_per_pixel <= 16)
 785                 var->bits_per_pixel = 16;
 786         else
 787                 var->bits_per_pixel = 32;
 788
 789         switch (var->bits_per_pixel) {
 790         case 8:
 791                 var->red.offset = 0;
 792                 var->red.length = 8;
 793                 var->green.offset = 0;
 794                 var->green.length = 8;
 795                 var->blue.offset = 0;
 796                 var->blue.length = 8;
 797                 var->transp.offset = 0;
 798                 var->transp.length = 0;
 799                 break;
 800         case 16:
 801                 var->green.length = (var->green.length < 6) ? 5 : 6;
 802                 var->red.length = 5;
 803                 var->blue.length = 5;
 804                 var->transp.length = 6 - var->green.length;
 805                 var->blue.offset = 0;
 806                 var->green.offset = 5;
 807                 var->red.offset = 5 + var->green.length;
 808                 var->transp.offset = (5 + var->red.offset) & 15;
 809                 break;
 810         case 32:                /* RGBA 8888 */
 811                 var->red.offset = 16;
 812                 var->red.length = 8;
 813                 var->green.offset = 8;
 814                 var->green.length = 8;
 815                 var->blue.offset = 0;
 816                 var->blue.length = 8;
 817                 var->transp.length = 8;
 818                 var->transp.offset = 24;
 819                 break;
 820         }
 821
 822         var->red.msb_right = 0;
 823         var->green.msb_right = 0;
 824         var->blue.msb_right = 0;
 825         var->transp.msb_right = 0;
 826
 827         if (!info->monspecs.hfmax || !info->monspecs.vfmax ||
 828             !info->monspecs.dclkmax || !fb_validate_mode(var, info))
 829                 mode_valid = 1;
 830
 831         /* calculate modeline if supported by monitor */
 832         if (!mode_valid && info->monspecs.gtf) {
 833                 if (!fb_get_mode(FB_MAXTIMINGS, 0, var, info))
 834                         mode_valid = 1;
 835         }
 836
 837         if (!mode_valid) {
 838                 const struct fb_videomode *mode;
 839
 840                 mode = fb_find_best_mode(var, &info->modelist);
 841                 if (mode) {
 842                         fb_videomode_to_var(var, mode);
 843                         mode_valid = 1;
 844                 }
 845         }
 846
 847         if (!mode_valid && info->monspecs.modedb_len)
 848                 return -EINVAL;
 849
 850         if (par->fpWidth && par->fpHeight && (par->fpWidth < var->xres ||
 851                                               par->fpHeight < var->yres))
 852                 return -EINVAL;
 853
 854         if (var->yres_virtual < var->yres)
 855                 var->yres_virtual = var->yres;
 856
 857         if (var->xres_virtual < var->xres)
 858                 var->xres_virtual = var->xres;
 859
 860         var->xres_virtual = (var->xres_virtual + 63) & ~63;
 861
 862         vramlen = info->screen_size;
 863         pitch = ((var->xres_virtual * var->bits_per_pixel) + 7) / 8;
 864         memlen = pitch * var->yres_virtual;
 865
 866         if (memlen > vramlen) {
 867                 var->yres_virtual = vramlen / pitch;
 868
 869                 if (var->yres_virtual < var->yres) {
 870                         var->yres_virtual = var->yres;
 871                         var->xres_virtual = vramlen / var->yres_virtual;
 872                         var->xres_virtual /= var->bits_per_pixel / 8;
 873                         var->xres_virtual &= ~63;
 874                         pitch = (var->xres_virtual *
 875                                  var->bits_per_pixel + 7) / 8;
 876                         memlen = pitch * var->yres;
 877
 878                         if (var->xres_virtual < var->xres) {
 879                                 printk("nvidiafb: required video memory, "
 880                                        "%d bytes, for %dx%d-%d (virtual) "
 881                                        "is out of range\n",
 882                                        memlen, var->xres_virtual,
 883                                        var->yres_virtual, var->bits_per_pixel);
 884                                 err = -ENOMEM;
 885                         }
 886                 }
 887         }
 888
 889         if (var->accel_flags) {
 890                 if (var->yres_virtual > 0x7fff)
 891                         var->yres_virtual = 0x7fff;
 892                 if (var->xres_virtual > 0x7fff)
 893                         var->xres_virtual = 0x7fff;
 894         }
 895
 896         var->xres_virtual &= ~63;
 897
 898         NVTRACE_LEAVE();
 899
 900         return err;
 901 }
 902
 903 static int nvidiafb_pan_display(struct fb_var_screeninfo *var,
 904                                 struct fb_info *info)
 905 {
 906         struct nvidia_par *par = info->par;
 907         u32 total;
 908
 909         total = var->yoffset * info->fix.line_length + var->xoffset;
 910
 911         NVSetStartAddress(par, total);
 912
 913         return 0;
 914 }
 915
 916 static int nvidiafb_blank(int blank, struct fb_info *info)
 917 {
 918         struct nvidia_par *par = info->par;
 919         unsigned char tmp, vesa;
 920
 921         tmp = NVReadSeq(par, 0x01) & ~0x20;     /* screen on/off */
 922         vesa = NVReadCrtc(par, 0x1a) & ~0xc0;   /* sync on/off */
 923
 924         NVTRACE_ENTER();
 925
 926         if (blank)
 927                 tmp |= 0x20;
 928
 929         switch (blank) {
 930         case FB_BLANK_UNBLANK:
 931         case FB_BLANK_NORMAL:
 932                 break;
 933         case FB_BLANK_VSYNC_SUSPEND:
 934                 vesa |= 0x80;
 935                 break;
 936         case FB_BLANK_HSYNC_SUSPEND:
 937                 vesa |= 0x40;
 938                 break;
 939         case FB_BLANK_POWERDOWN:
 940                 vesa |= 0xc0;
 941                 break;
 942         }
 943
 944         NVWriteSeq(par, 0x01, tmp);
 945         NVWriteCrtc(par, 0x1a, vesa);
 946
 947         NVTRACE_LEAVE();
 948
 949         return 0;
 950 }
 951
 952 /*
 953  * Because the VGA registers are not mapped linearly in its MMIO space,
 954  * restrict VGA register saving and restore to x86 only, where legacy VGA IO
 955  * access is legal. Consequently, we must also check if the device is the
 956  * primary display.
 957  */
 958 #ifdef CONFIG_X86
 959 static void save_vga_x86(struct nvidia_par *par)
 960 {
 961         struct resource *res= &par->pci_dev->resource[PCI_ROM_RESOURCE];
 962
 963         if (res && res->flags & IORESOURCE_ROM_SHADOW) {
 964                 memset(&par->vgastate, 0, sizeof(par->vgastate));
 965                 par->vgastate.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS |
 966                         VGA_SAVE_CMAP;
 967                 save_vga(&par->vgastate);
 968         }
 969 }
 970
 971 static void restore_vga_x86(struct nvidia_par *par)
 972 {
 973         struct resource *res= &par->pci_dev->resource[PCI_ROM_RESOURCE];
 974
 975         if (res && res->flags & IORESOURCE_ROM_SHADOW)
 976                 restore_vga(&par->vgastate);
 977 }
 978 #else
 979 #define save_vga_x86(x) do {} while (0)
 980 #define restore_vga_x86(x) do {} while (0)
 981 #endif /* X86 */
 982
 983 static int nvidiafb_open(struct fb_info *info, int user)
 984 {
 985         struct nvidia_par *par = info->par;
 986
 987         mutex_lock(&par->open_lock);
 988
 989         if (!par->open_count) {
 990                 save_vga_x86(par);
 991                 nvidia_save_vga(par, &par->initial_state);
 992         }
 993
 994         par->open_count++;
 995         mutex_unlock(&par->open_lock);
 996         return 0;
 997 }
 998
 999 static int nvidiafb_release(struct fb_info *info, int user)
1000 {
1001         struct nvidia_par *par = info->par;
1002         int err = 0;
1003
1004         mutex_lock(&par->open_lock);
1005
1006         if (!par->open_count) {
1007                 err = -EINVAL;
1008                 goto done;
1009         }
1010
1011         if (par->open_count == 1) {
1012                 nvidia_write_regs(par, &par->initial_state);
1013                 restore_vga_x86(par);
1014         }
1015
1016         par->open_count--;
1017 done:
1018         mutex_unlock(&par->open_lock);
1019         return err;
1020 }
1021
1022 static struct fb_ops nvidia_fb_ops = {
1023         .owner          = THIS_MODULE,
1024         .fb_open        = nvidiafb_open,
1025         .fb_release     = nvidiafb_release,
1026         .fb_check_var   = nvidiafb_check_var,
1027         .fb_set_par     = nvidiafb_set_par,
1028         .fb_setcolreg   = nvidiafb_setcolreg,
1029         .fb_pan_display = nvidiafb_pan_display,
1030         .fb_blank       = nvidiafb_blank,
1031         .fb_fillrect    = nvidiafb_fillrect,
1032         .fb_copyarea    = nvidiafb_copyarea,
1033         .fb_imageblit   = nvidiafb_imageblit,
1034         .fb_cursor      = nvidiafb_cursor,
1035         .fb_sync        = nvidiafb_sync,
1036 };
1037
1038 #ifdef CONFIG_PM
1039 static int nvidiafb_suspend(struct pci_dev *dev, pm_message_t mesg)
1040 {
1041         struct fb_info *info = pci_get_drvdata(dev);
1042         struct nvidia_par *par = info->par;
1043
1044         if (mesg.event == PM_EVENT_PRETHAW)
1045                 mesg.event = PM_EVENT_FREEZE;
1046         acquire_console_sem();
1047         par->pm_state = mesg.event;
1048
1049         if (mesg.event == PM_EVENT_SUSPEND) {
1050                 fb_set_suspend(info, 1);
1051                 nvidiafb_blank(FB_BLANK_POWERDOWN, info);
1052                 nvidia_write_regs(par, &par->SavedReg);
1053                 pci_save_state(dev);
1054                 pci_disable_device(dev);
1055                 pci_set_power_state(dev, pci_choose_state(dev, mesg));
1056         }
1057         dev->dev.power.power_state = mesg;
1058
1059         release_console_sem();
1060         return 0;
1061 }
1062
1063 static int nvidiafb_resume(struct pci_dev *dev)
1064 {
1065         struct fb_info *info = pci_get_drvdata(dev);
1066         struct nvidia_par *par = info->par;
1067
1068         acquire_console_sem();
1069         pci_set_power_state(dev, PCI_D0);
1070
1071         if (par->pm_state != PM_EVENT_FREEZE) {
1072                 pci_restore_state(dev);
1073
1074                 if (pci_enable_device(dev))
1075                         goto fail;
1076
1077                 pci_set_master(dev);
1078         }
1079
1080         par->pm_state = PM_EVENT_ON;
1081         nvidiafb_set_par(info);
1082         fb_set_suspend (info, 0);
1083         nvidiafb_blank(FB_BLANK_UNBLANK, info);
1084
1085 fail:
1086         release_console_sem();
1087         return 0;
1088 }
1089 #else
1090 #define nvidiafb_suspend NULL
1091 #define nvidiafb_resume NULL
1092 #endif
1093
1094 static int __devinit nvidia_set_fbinfo(struct fb_info *info)
1095 {
1096         struct fb_monspecs *specs = &info->monspecs;
1097         struct fb_videomode modedb;
1098         struct nvidia_par *par = info->par;
1099         int lpitch;
1100
1101         NVTRACE_ENTER();
1102         info->flags = FBINFO_DEFAULT
1103             | FBINFO_HWACCEL_IMAGEBLIT
1104             | FBINFO_HWACCEL_FILLRECT
1105             | FBINFO_HWACCEL_COPYAREA
1106             | FBINFO_HWACCEL_YPAN;
1107
1108         fb_videomode_to_modelist(info->monspecs.modedb,
1109                                  info->monspecs.modedb_len, &info->modelist);
1110         fb_var_to_videomode(&modedb, &nvidiafb_default_var);
1111
1112         switch (bpp) {
1113         case 0 ... 8:
1114                 bpp = 8;
1115                 break;
1116         case 9 ... 16:
1117                 bpp = 16;
1118                 break;
1119         default:
1120                 bpp = 32;
1121                 break;
1122         }
1123
1124         if (specs->modedb != NULL) {
1125                 const struct fb_videomode *mode;
1126
1127                 mode = fb_find_best_display(specs, &info->modelist);
1128                 fb_videomode_to_var(&nvidiafb_default_var, mode);
1129                 nvidiafb_default_var.bits_per_pixel = bpp;
1130         } else if (par->fpWidth && par->fpHeight) {
1131                 char buf[16];
1132
1133                 memset(buf, 0, 16);
1134                 snprintf(buf, 15, "%dx%dMR", par->fpWidth, par->fpHeight);
1135                 fb_find_mode(&nvidiafb_default_var, info, buf, specs->modedb,
1136                              specs->modedb_len, &modedb, bpp);
1137         }
1138
1139         if (mode_option)
1140                 fb_find_mode(&nvidiafb_default_var, info, mode_option,
1141                              specs->modedb, specs->modedb_len, &modedb, bpp);
1142
1143         info->var = nvidiafb_default_var;
1144         info->fix.visual = (info->var.bits_per_pixel == 8) ?
1145                 FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_DIRECTCOLOR;
1146         info->pseudo_palette = par->pseudo_palette;
1147         fb_alloc_cmap(&info->cmap, 256, 0);
1148         fb_destroy_modedb(info->monspecs.modedb);
1149         info->monspecs.modedb = NULL;
1150
1151         /* maximize virtual vertical length */
1152         lpitch = info->var.xres_virtual *
1153                 ((info->var.bits_per_pixel + 7) >> 3);
1154         info->var.yres_virtual = info->screen_size / lpitch;
1155
1156         info->pixmap.scan_align = 4;
1157         info->pixmap.buf_align = 4;
1158         info->pixmap.access_align = 32;
1159         info->pixmap.size = 8 * 1024;
1160         info->pixmap.flags = FB_PIXMAP_SYSTEM;
1161
1162         if (!hwcur)
1163             info->fbops->fb_cursor = NULL;
1164
1165         info->var.accel_flags = (!noaccel);
1166
1167         switch (par->Architecture) {
1168         case NV_ARCH_04:
1169                 info->fix.accel = FB_ACCEL_NV4;
1170                 break;
1171         case NV_ARCH_10:
1172                 info->fix.accel = FB_ACCEL_NV_10;
1173                 break;
1174         case NV_ARCH_20:
1175                 info->fix.accel = FB_ACCEL_NV_20;
1176                 break;
1177         case NV_ARCH_30:
1178                 info->fix.accel = FB_ACCEL_NV_30;
1179                 break;
1180         case NV_ARCH_40:
1181                 info->fix.accel = FB_ACCEL_NV_40;
1182                 break;
1183         }
1184
1185         NVTRACE_LEAVE();
1186
1187         return nvidiafb_check_var(&info->var, info);
1188 }
1189
1190 static u32 __devinit nvidia_get_chipset(struct fb_info *info)
1191 {
1192         struct nvidia_par *par = info->par;
1193         u32 id = (par->pci_dev->vendor << 16) | par->pci_dev->device;
1194
1195         printk(KERN_INFO PFX "Device ID: %x \n", id);
1196
1197         if ((id & 0xfff0) == 0x00f0) {
1198                 /* pci-e */
1199                 id = NV_RD32(par->REGS, 0x1800);
1200
1201                 if ((id & 0x0000ffff) == 0x000010DE)
1202                         id = 0x10DE0000 | (id >> 16);
1203                 else if ((id & 0xffff0000) == 0xDE100000) /* wrong endian */
1204                         id = 0x10DE0000 | ((id << 8) & 0x0000ff00) |
1205                             ((id >> 8) & 0x000000ff);
1206                 printk(KERN_INFO PFX "Subsystem ID: %x \n", id);
1207         }
1208
1209         return id;
1210 }
1211
1212 static u32 __devinit nvidia_get_arch(struct fb_info *info)
1213 {
1214         struct nvidia_par *par = info->par;
1215         u32 arch = 0;
1216
1217         switch (par->Chipset & 0x0ff0) {
1218         case 0x0100:            /* GeForce 256 */
1219         case 0x0110:            /* GeForce2 MX */
1220         case 0x0150:            /* GeForce2 */
1221         case 0x0170:            /* GeForce4 MX */
1222         case 0x0180:            /* GeForce4 MX (8x AGP) */
1223         case 0x01A0:            /* nForce */
1224         case 0x01F0:            /* nForce2 */
1225                 arch = NV_ARCH_10;
1226                 break;
1227         case 0x0200:            /* GeForce3 */
1228         case 0x0250:            /* GeForce4 Ti */
1229         case 0x0280:            /* GeForce4 Ti (8x AGP) */
1230                 arch = NV_ARCH_20;
1231                 break;
1232         case 0x0300:            /* GeForceFX 5800 */
1233         case 0x0310:            /* GeForceFX 5600 */
1234         case 0x0320:            /* GeForceFX 5200 */
1235         case 0x0330:            /* GeForceFX 5900 */
1236         case 0x0340:            /* GeForceFX 5700 */
1237                 arch = NV_ARCH_30;
1238                 break;
1239         case 0x0040:            /* GeForce 6800 */
1240         case 0x00C0:            /* GeForce 6800 */
1241         case 0x0120:            /* GeForce 6800 */
1242         case 0x0130:
1243         case 0x0140:            /* GeForce 6600 */
1244         case 0x0160:            /* GeForce 6200 */
1245         case 0x01D0:            /* GeForce 7200, 7300, 7400 */
1246         case 0x0090:            /* GeForce 7800 */
1247         case 0x0210:            /* GeForce 6800 */
1248         case 0x0220:            /* GeForce 6200 */
1249         case 0x0230:
1250         case 0x0240:            /* GeForce 6100 */
1251         case 0x0290:            /* GeForce 7900 */
1252         case 0x0390:            /* GeForce 7600 */
1253                 arch = NV_ARCH_40;
1254                 break;
1255         case 0x0020:            /* TNT, TNT2 */
1256                 arch = NV_ARCH_04;
1257                 break;
1258         default:                /* unknown architecture */
1259                 break;
1260         }
1261
1262         return arch;
1263 }
1264
1265 static int __devinit nvidiafb_probe(struct pci_dev *pd,
1266                                     const struct pci_device_id *ent)
1267 {
1268         struct nvidia_par *par;
1269         struct fb_info *info;
1270         unsigned short cmd;
1271
1272
1273         NVTRACE_ENTER();
1274         assert(pd != NULL);
1275
1276         info = framebuffer_alloc(sizeof(struct nvidia_par), &pd->dev);
1277
1278         if (!info)
1279                 goto err_out;
1280
1281         par = info->par;
1282         par->pci_dev = pd;
1283         mutex_init(&par->open_lock);
1284         info->pixmap.addr = kzalloc(8 * 1024, GFP_KERNEL);
1285
1286         if (info->pixmap.addr == NULL)
1287                 goto err_out_kfree;
1288
1289         if (pci_enable_device(pd)) {
1290                 printk(KERN_ERR PFX "cannot enable PCI device\n");
1291                 goto err_out_enable;
1292         }
1293
1294         if (pci_request_regions(pd, "nvidiafb")) {
1295                 printk(KERN_ERR PFX "cannot request PCI regions\n");
1296                 goto err_out_enable;
1297         }
1298
1299         par->FlatPanel = flatpanel;
1300         if (flatpanel == 1)
1301                 printk(KERN_INFO PFX "flatpanel support enabled\n");
1302         par->FPDither = fpdither;
1303
1304         par->CRTCnumber = forceCRTC;
1305         par->FpScale = (!noscale);
1306         par->paneltweak = paneltweak;
1307
1308         /* enable IO and mem if not already done */
1309         pci_read_config_word(pd, PCI_COMMAND, &cmd);
1310         cmd |= (PCI_COMMAND_IO | PCI_COMMAND_MEMORY);
1311         pci_write_config_word(pd, PCI_COMMAND, cmd);
1312
1313         nvidiafb_fix.mmio_start = pci_resource_start(pd, 0);
1314         nvidiafb_fix.smem_start = pci_resource_start(pd, 1);
1315         nvidiafb_fix.mmio_len = pci_resource_len(pd, 0);
1316
1317         par->REGS = ioremap(nvidiafb_fix.mmio_start, nvidiafb_fix.mmio_len);
1318
1319         if (!par->REGS) {
1320                 printk(KERN_ERR PFX "cannot ioremap MMIO base\n");
1321                 goto err_out_free_base0;
1322         }
1323
1324         par->Chipset = nvidia_get_chipset(info);
1325         par->Architecture = nvidia_get_arch(info);
1326
1327         if (par->Architecture == 0) {
1328                 printk(KERN_ERR PFX "unknown NV_ARCH\n");
1329                 goto err_out_arch;
1330         }
1331
1332         sprintf(nvidiafb_fix.id, "NV%x", (pd->device & 0x0ff0) >> 4);
1333
1334         if (NVCommonSetup(info))
1335                 goto err_out_arch;
1336
1337         par->FbAddress = nvidiafb_fix.smem_start;
1338         par->FbMapSize = par->RamAmountKBytes * 1024;
1339         if (vram && vram * 1024 * 1024 < par->FbMapSize)
1340                 par->FbMapSize = vram * 1024 * 1024;
1341
1342         /* Limit amount of vram to 64 MB */
1343         if (par->FbMapSize > 64 * 1024 * 1024)
1344                 par->FbMapSize = 64 * 1024 * 1024;
1345
1346         if(par->Architecture >= NV_ARCH_40)
1347                 par->FbUsableSize = par->FbMapSize - (560 * 1024);
1348         else
1349                 par->FbUsableSize = par->FbMapSize - (128 * 1024);
1350         par->ScratchBufferSize = (par->Architecture < NV_ARCH_10) ? 8 * 1024 :
1351             16 * 1024;
1352         par->ScratchBufferStart = par->FbUsableSize - par->ScratchBufferSize;
1353         par->CursorStart = par->FbUsableSize + (32 * 1024);
1354
1355         info->screen_base = ioremap(nvidiafb_fix.smem_start, par->FbMapSize);
1356         info->screen_size = par->FbUsableSize;
1357         nvidiafb_fix.smem_len = par->RamAmountKBytes * 1024;
1358
1359         if (!info->screen_base) {
1360                 printk(KERN_ERR PFX "cannot ioremap FB base\n");
1361                 goto err_out_free_base1;
1362         }
1363
1364         par->FbStart = info->screen_base;
1365
1366 #ifdef CONFIG_MTRR
1367         if (!nomtrr) {
1368                 par->mtrr.vram = mtrr_add(nvidiafb_fix.smem_start,
1369                                           par->RamAmountKBytes * 1024,
1370                                           MTRR_TYPE_WRCOMB, 1);
1371                 if (par->mtrr.vram < 0) {
1372                         printk(KERN_ERR PFX "unable to setup MTRR\n");
1373                 } else {
1374                         par->mtrr.vram_valid = 1;
1375                         /* let there be speed */
1376                         printk(KERN_INFO PFX "MTRR set to ON\n");
1377                 }
1378         }
1379 #endif                          /* CONFIG_MTRR */
1380
1381         info->fbops = &nvidia_fb_ops;
1382         info->fix = nvidiafb_fix;
1383
1384         if (nvidia_set_fbinfo(info) < 0) {
1385                 printk(KERN_ERR PFX "error setting initial video mode\n");
1386                 goto err_out_iounmap_fb;
1387         }
1388
1389         nvidia_save_vga(par, &par->SavedReg);
1390
1391         pci_set_drvdata(pd, info);
1392
1393         if (backlight)
1394                 nvidia_bl_init(par);
1395
1396         if (register_framebuffer(info) < 0) {
1397                 printk(KERN_ERR PFX "error registering nVidia framebuffer\n");
1398                 goto err_out_iounmap_fb;
1399         }
1400
1401
1402         printk(KERN_INFO PFX
1403                "PCI nVidia %s framebuffer (%dMB @ 0x%lX)\n",
1404                info->fix.id,
1405                par->FbMapSize / (1024 * 1024), info->fix.smem_start);
1406
1407         NVTRACE_LEAVE();
1408         return 0;
1409
1410 err_out_iounmap_fb:
1411         iounmap(info->screen_base);
1412 err_out_free_base1:
1413         fb_destroy_modedb(info->monspecs.modedb);
1414         nvidia_delete_i2c_busses(par);
1415 err_out_arch:
1416         iounmap(par->REGS);
1417  err_out_free_base0:
1418         pci_release_regions(pd);
1419 err_out_enable:
1420         kfree(info->pixmap.addr);
1421 err_out_kfree:
1422         framebuffer_release(info);
1423 err_out:
1424         return -ENODEV;
1425 }
1426
1427 static void __devexit nvidiafb_remove(struct pci_dev *pd)
1428 {
1429         struct fb_info *info = pci_get_drvdata(pd);
1430         struct nvidia_par *par = info->par;
1431
1432         NVTRACE_ENTER();
1433
1434         unregister_framebuffer(info);
1435
1436         nvidia_bl_exit(par);
1437
1438 #ifdef CONFIG_MTRR
1439         if (par->mtrr.vram_valid)
1440                 mtrr_del(par->mtrr.vram, info->fix.smem_start,
1441                          info->fix.smem_len);
1442 #endif                          /* CONFIG_MTRR */
1443
1444         iounmap(info->screen_base);
1445         fb_destroy_modedb(info->monspecs.modedb);
1446         nvidia_delete_i2c_busses(par);
1447         iounmap(par->REGS);
1448         pci_release_regions(pd);
1449         kfree(info->pixmap.addr);
1450         framebuffer_release(info);
1451         pci_set_drvdata(pd, NULL);
1452         NVTRACE_LEAVE();
1453 }
1454
1455 /* ------------------------------------------------------------------------- *
1456  *
1457  * initialization
1458  *
1459  * ------------------------------------------------------------------------- */
1460
1461 #ifndef MODULE
1462 static int __devinit nvidiafb_setup(char *options)
1463 {
1464         char *this_opt;
1465
1466         NVTRACE_ENTER();
1467         if (!options || !*options)
1468                 return 0;
1469
1470         while ((this_opt = strsep(&options, ",")) != NULL) {
1471                 if (!strncmp(this_opt, "forceCRTC", 9)) {
1472                         char *p;
1473
1474                         p = this_opt + 9;
1475                         if (!*p || !*(++p))
1476                                 continue;
1477                         forceCRTC = *p - '0';
1478                         if (forceCRTC < 0 || forceCRTC > 1)
1479                                 forceCRTC = -1;
1480                 } else if (!strncmp(this_opt, "flatpanel", 9)) {
1481                         flatpanel = 1;
1482                 } else if (!strncmp(this_opt, "hwcur", 5)) {
1483                         hwcur = 1;
1484                 } else if (!strncmp(this_opt, "noaccel", 6)) {
1485                         noaccel = 1;
1486                 } else if (!strncmp(this_opt, "noscale", 7)) {
1487                         noscale = 1;
1488                 } else if (!strncmp(this_opt, "paneltweak:", 11)) {
1489                         paneltweak = simple_strtoul(this_opt+11, NULL, 0);
1490                 } else if (!strncmp(this_opt, "vram:", 5)) {
1491                         vram = simple_strtoul(this_opt+5, NULL, 0);
1492                 } else if (!strncmp(this_opt, "backlight:", 10)) {
1493                         backlight = simple_strtoul(this_opt+10, NULL, 0);
1494 #ifdef CONFIG_MTRR
1495                 } else if (!strncmp(this_opt, "nomtrr", 6)) {
1496                         nomtrr = 1;
1497 #endif
1498                 } else if (!strncmp(this_opt, "fpdither:", 9)) {
1499                         fpdither = simple_strtol(this_opt+9, NULL, 0);
1500                 } else if (!strncmp(this_opt, "bpp:", 4)) {
1501                         bpp = simple_strtoul(this_opt+4, NULL, 0);
1502                 } else
1503                         mode_option = this_opt;
1504         }
1505         NVTRACE_LEAVE();
1506         return 0;
1507 }
1508 #endif                          /* !MODULE */
1509
1510 static struct pci_driver nvidiafb_driver = {
1511         .name = "nvidiafb",
1512         .id_table = nvidiafb_pci_tbl,
1513         .probe    = nvidiafb_probe,
1514         .suspend  = nvidiafb_suspend,
1515         .resume   = nvidiafb_resume,
1516         .remove   = __devexit_p(nvidiafb_remove),
1517 };
1518
1519 /* ------------------------------------------------------------------------- *
1520  *
1521  * modularization
1522  *
1523  * ------------------------------------------------------------------------- */
1524
1525 static int __devinit nvidiafb_init(void)
1526 {
1527 #ifndef MODULE
1528         char *option = NULL;
1529
1530         if (fb_get_options("nvidiafb", &option))
1531                 return -ENODEV;
1532         nvidiafb_setup(option);
1533 #endif
1534         return pci_register_driver(&nvidiafb_driver);
1535 }
1536
1537 module_init(nvidiafb_init);
1538
1539 #ifdef MODULE
1540 static void __exit nvidiafb_exit(void)
1541 {
1542         pci_unregister_driver(&nvidiafb_driver);
1543 }
1544
1545 module_exit(nvidiafb_exit);
1546
1547 module_param(flatpanel, int, 0);
1548 MODULE_PARM_DESC(flatpanel,
1549                  "Enables experimental flat panel support for some chipsets. "
1550                  "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
1551 module_param(fpdither, int, 0);
1552 MODULE_PARM_DESC(fpdither,
1553                  "Enables dithering of flat panel for 6 bits panels. "
1554                  "(0=disabled, 1=enabled, -1=autodetect) (default=-1)");
1555 module_param(hwcur, int, 0);
1556 MODULE_PARM_DESC(hwcur,
1557                  "Enables hardware cursor implementation. (0 or 1=enabled) "
1558                  "(default=0)");
1559 module_param(noaccel, int, 0);
1560 MODULE_PARM_DESC(noaccel,
1561                  "Disables hardware acceleration. (0 or 1=disable) "
1562                  "(default=0)");
1563 module_param(noscale, int, 0);
1564 MODULE_PARM_DESC(noscale,
1565                  "Disables screen scaleing. (0 or 1=disable) "
1566                  "(default=0, do scaling)");
1567 module_param(paneltweak, int, 0);
1568 MODULE_PARM_DESC(paneltweak,
1569                  "Tweak display settings for flatpanels. "
1570                  "(default=0, no tweaks)");
1571 module_param(forceCRTC, int, 0);
1572 MODULE_PARM_DESC(forceCRTC,
1573                  "Forces usage of a particular CRTC in case autodetection "
1574                  "fails. (0 or 1) (default=autodetect)");
1575 module_param(vram, int, 0);
1576 MODULE_PARM_DESC(vram,
1577                  "amount of framebuffer memory to remap in MiB"
1578                  "(default=0 - remap entire memory)");
1579 module_param(mode_option, charp, 0);
1580 MODULE_PARM_DESC(mode_option, "Specify initial video mode");
1581 module_param(bpp, int, 0);
1582 MODULE_PARM_DESC(bpp, "pixel width in bits"
1583                  "(default=8)");
1584 #ifdef CONFIG_MTRR
1585 module_param(nomtrr, bool, 0);
1586 MODULE_PARM_DESC(nomtrr, "Disables MTRR support (0 or 1=disabled) "
1587                  "(default=0)");
1588 #endif
1589
1590 MODULE_AUTHOR("Antonino Daplas");
1591 MODULE_DESCRIPTION("Framebuffer driver for nVidia graphics chipset");
1592 MODULE_LICENSE("GPL");
1593 #endif                          /* MODULE */
1594