drivers/char/drm/i915_drv.c

   1 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
   2  */
   3 /*
   4  *
   5  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   6  * All Rights Reserved.
   7  *
   8  * Permission is hereby granted, free of charge, to any person obtaining a
   9  * copy of this software and associated documentation files (the
  10  * "Software"), to deal in the Software without restriction, including
  11  * without limitation the rights to use, copy, modify, merge, publish,
  12  * distribute, sub license, and/or sell copies of the Software, and to
  13  * permit persons to whom the Software is furnished to do so, subject to
  14  * the following conditions:
  15  *
  16  * The above copyright notice and this permission notice (including the
  17  * next paragraph) shall be included in all copies or substantial portions
  18  * of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  23  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  24  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27  *
  28  */
  29
  30 #include "drmP.h"
  31 #include "drm.h"
  32 #include "i915_drm.h"
  33 #include "i915_drv.h"
  34
  35 #include "drm_pciids.h"
  36
  37 static struct pci_device_id pciidlist[] = {
  38         i915_PCI_IDS
  39 };
  40
  41 enum pipe {
  42     PIPE_A = 0,
  43     PIPE_B,
  44 };
  45
  46 static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe)
  47 {
  48         struct drm_i915_private *dev_priv = dev->dev_private;
  49
  50         if (pipe == PIPE_A)
  51                 return (I915_READ(DPLL_A) & DPLL_VCO_ENABLE);
  52         else
  53                 return (I915_READ(DPLL_B) & DPLL_VCO_ENABLE);
  54 }
  55
  56 static void i915_save_palette(struct drm_device *dev, enum pipe pipe)
  57 {
  58         struct drm_i915_private *dev_priv = dev->dev_private;
  59         unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
  60         u32 *array;
  61         int i;
  62
  63         if (!i915_pipe_enabled(dev, pipe))
  64                 return;
  65
  66         if (pipe == PIPE_A)
  67                 array = dev_priv->save_palette_a;
  68         else
  69                 array = dev_priv->save_palette_b;
  70
  71         for(i = 0; i < 256; i++)
  72                 array[i] = I915_READ(reg + (i << 2));
  73 }
  74
  75 static void i915_restore_palette(struct drm_device *dev, enum pipe pipe)
  76 {
  77         struct drm_i915_private *dev_priv = dev->dev_private;
  78         unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B);
  79         u32 *array;
  80         int i;
  81
  82         if (!i915_pipe_enabled(dev, pipe))
  83                 return;
  84
  85         if (pipe == PIPE_A)
  86                 array = dev_priv->save_palette_a;
  87         else
  88                 array = dev_priv->save_palette_b;
  89
  90         for(i = 0; i < 256; i++)
  91                 I915_WRITE(reg + (i << 2), array[i]);
  92 }
  93
  94 static u8 i915_read_indexed(u16 index_port, u16 data_port, u8 reg)
  95 {
  96         outb(reg, index_port);
  97         return inb(data_port);
  98 }
  99
 100 static u8 i915_read_ar(u16 st01, u8 reg, u16 palette_enable)
 101 {
 102         inb(st01);
 103         outb(palette_enable | reg, VGA_AR_INDEX);
 104         return inb(VGA_AR_DATA_READ);
 105 }
 106
 107 static void i915_write_ar(u8 st01, u8 reg, u8 val, u16 palette_enable)
 108 {
 109         inb(st01);
 110         outb(palette_enable | reg, VGA_AR_INDEX);
 111         outb(val, VGA_AR_DATA_WRITE);
 112 }
 113
 114 static void i915_write_indexed(u16 index_port, u16 data_port, u8 reg, u8 val)
 115 {
 116         outb(reg, index_port);
 117         outb(val, data_port);
 118 }
 119
 120 static void i915_save_vga(struct drm_device *dev)
 121 {
 122         struct drm_i915_private *dev_priv = dev->dev_private;
 123         int i;
 124         u16 cr_index, cr_data, st01;
 125
 126         /* VGA color palette registers */
 127         dev_priv->saveDACMASK = inb(VGA_DACMASK);
 128         /* DACCRX automatically increments during read */
 129         outb(0, VGA_DACRX);
 130         /* Read 3 bytes of color data from each index */
 131         for (i = 0; i < 256 * 3; i++)
 132                 dev_priv->saveDACDATA[i] = inb(VGA_DACDATA);
 133
 134         /* MSR bits */
 135         dev_priv->saveMSR = inb(VGA_MSR_READ);
 136         if (dev_priv->saveMSR & VGA_MSR_CGA_MODE) {
 137                 cr_index = VGA_CR_INDEX_CGA;
 138                 cr_data = VGA_CR_DATA_CGA;
 139                 st01 = VGA_ST01_CGA;
 140         } else {
 141                 cr_index = VGA_CR_INDEX_MDA;
 142                 cr_data = VGA_CR_DATA_MDA;
 143                 st01 = VGA_ST01_MDA;
 144         }
 145
 146         /* CRT controller regs */
 147         i915_write_indexed(cr_index, cr_data, 0x11,
 148                            i915_read_indexed(cr_index, cr_data, 0x11) &
 149                            (~0x80));
 150         for (i = 0; i < 0x24; i++)
 151                 dev_priv->saveCR[i] =
 152                         i915_read_indexed(cr_index, cr_data, i);
 153         /* Make sure we don't turn off CR group 0 writes */
 154         dev_priv->saveCR[0x11] &= ~0x80;
 155
 156         /* Attribute controller registers */
 157         inb(st01);
 158         dev_priv->saveAR_INDEX = inb(VGA_AR_INDEX);
 159         for (i = 0; i < 20; i++)
 160                 dev_priv->saveAR[i] = i915_read_ar(st01, i, 0);
 161         inb(st01);
 162         outb(dev_priv->saveAR_INDEX, VGA_AR_INDEX);
 163
 164         /* Graphics controller registers */
 165         for (i = 0; i < 9; i++)
 166                 dev_priv->saveGR[i] =
 167                         i915_read_indexed(VGA_GR_INDEX, VGA_GR_DATA, i);
 168
 169         dev_priv->saveGR[0x10] =
 170                 i915_read_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x10);
 171         dev_priv->saveGR[0x11] =
 172                 i915_read_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x11);
 173         dev_priv->saveGR[0x18] =
 174                 i915_read_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x18);
 175
 176         /* Sequencer registers */
 177         for (i = 0; i < 8; i++)
 178                 dev_priv->saveSR[i] =
 179                         i915_read_indexed(VGA_SR_INDEX, VGA_SR_DATA, i);
 180 }
 181
 182 static void i915_restore_vga(struct drm_device *dev)
 183 {
 184         struct drm_i915_private *dev_priv = dev->dev_private;
 185         int i;
 186         u16 cr_index, cr_data, st01;
 187
 188         /* MSR bits */
 189         outb(dev_priv->saveMSR, VGA_MSR_WRITE);
 190         if (dev_priv->saveMSR & VGA_MSR_CGA_MODE) {
 191                 cr_index = VGA_CR_INDEX_CGA;
 192                 cr_data = VGA_CR_DATA_CGA;
 193                 st01 = VGA_ST01_CGA;
 194         } else {
 195                 cr_index = VGA_CR_INDEX_MDA;
 196                 cr_data = VGA_CR_DATA_MDA;
 197                 st01 = VGA_ST01_MDA;
 198         }
 199
 200         /* Sequencer registers, don't write SR07 */
 201         for (i = 0; i < 7; i++)
 202                 i915_write_indexed(VGA_SR_INDEX, VGA_SR_DATA, i,
 203                                    dev_priv->saveSR[i]);
 204
 205         /* CRT controller regs */
 206         /* Enable CR group 0 writes */
 207         i915_write_indexed(cr_index, cr_data, 0x11, dev_priv->saveCR[0x11]);
 208         for (i = 0; i < 0x24; i++)
 209                 i915_write_indexed(cr_index, cr_data, i, dev_priv->saveCR[i]);
 210
 211         /* Graphics controller regs */
 212         for (i = 0; i < 9; i++)
 213                 i915_write_indexed(VGA_GR_INDEX, VGA_GR_DATA, i,
 214                                    dev_priv->saveGR[i]);
 215
 216         i915_write_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x10,
 217                            dev_priv->saveGR[0x10]);
 218         i915_write_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x11,
 219                            dev_priv->saveGR[0x11]);
 220         i915_write_indexed(VGA_GR_INDEX, VGA_GR_DATA, 0x18,
 221                            dev_priv->saveGR[0x18]);
 222
 223         /* Attribute controller registers */
 224         for (i = 0; i < 20; i++)
 225                 i915_write_ar(st01, i, dev_priv->saveAR[i], 0);
 226         inb(st01); /* switch back to index mode */
 227         outb(dev_priv->saveAR_INDEX | 0x20, VGA_AR_INDEX);
 228
 229         /* VGA color palette registers */
 230         outb(dev_priv->saveDACMASK, VGA_DACMASK);
 231         /* DACCRX automatically increments during read */
 232         outb(0, VGA_DACWX);
 233         /* Read 3 bytes of color data from each index */
 234         for (i = 0; i < 256 * 3; i++)
 235                 outb(dev_priv->saveDACDATA[i], VGA_DACDATA);
 236
 237 }
 238
 239 static int i915_suspend(struct drm_device *dev)
 240 {
 241         struct drm_i915_private *dev_priv = dev->dev_private;
 242         int i;
 243
 244         if (!dev || !dev_priv) {
 245                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
 246                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
 247                 return -ENODEV;
 248         }
 249
 250         pci_save_state(dev->pdev);
 251         pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
 252
 253         /* Pipe & plane A info */
 254         dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
 255         dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
 256         dev_priv->saveFPA0 = I915_READ(FPA0);
 257         dev_priv->saveFPA1 = I915_READ(FPA1);
 258         dev_priv->saveDPLL_A = I915_READ(DPLL_A);
 259         if (IS_I965G(dev))
 260                 dev_priv->saveDPLL_A_MD = I915_READ(DPLL_A_MD);
 261         dev_priv->saveHTOTAL_A = I915_READ(HTOTAL_A);
 262         dev_priv->saveHBLANK_A = I915_READ(HBLANK_A);
 263         dev_priv->saveHSYNC_A = I915_READ(HSYNC_A);
 264         dev_priv->saveVTOTAL_A = I915_READ(VTOTAL_A);
 265         dev_priv->saveVBLANK_A = I915_READ(VBLANK_A);
 266         dev_priv->saveVSYNC_A = I915_READ(VSYNC_A);
 267         dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
 268
 269         dev_priv->saveDSPACNTR = I915_READ(DSPACNTR);
 270         dev_priv->saveDSPASTRIDE = I915_READ(DSPASTRIDE);
 271         dev_priv->saveDSPASIZE = I915_READ(DSPASIZE);
 272         dev_priv->saveDSPAPOS = I915_READ(DSPAPOS);
 273         dev_priv->saveDSPABASE = I915_READ(DSPABASE);
 274         if (IS_I965G(dev)) {
 275                 dev_priv->saveDSPASURF = I915_READ(DSPASURF);
 276                 dev_priv->saveDSPATILEOFF = I915_READ(DSPATILEOFF);
 277         }
 278         i915_save_palette(dev, PIPE_A);
 279         dev_priv->savePIPEASTAT = I915_READ(I915REG_PIPEASTAT);
 280
 281         /* Pipe & plane B info */
 282         dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF);
 283         dev_priv->savePIPEBSRC = I915_READ(PIPEBSRC);
 284         dev_priv->saveFPB0 = I915_READ(FPB0);
 285         dev_priv->saveFPB1 = I915_READ(FPB1);
 286         dev_priv->saveDPLL_B = I915_READ(DPLL_B);
 287         if (IS_I965G(dev))
 288                 dev_priv->saveDPLL_B_MD = I915_READ(DPLL_B_MD);
 289         dev_priv->saveHTOTAL_B = I915_READ(HTOTAL_B);
 290         dev_priv->saveHBLANK_B = I915_READ(HBLANK_B);
 291         dev_priv->saveHSYNC_B = I915_READ(HSYNC_B);
 292         dev_priv->saveVTOTAL_B = I915_READ(VTOTAL_B);
 293         dev_priv->saveVBLANK_B = I915_READ(VBLANK_B);
 294         dev_priv->saveVSYNC_B = I915_READ(VSYNC_B);
 295         dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A);
 296
 297         dev_priv->saveDSPBCNTR = I915_READ(DSPBCNTR);
 298         dev_priv->saveDSPBSTRIDE = I915_READ(DSPBSTRIDE);
 299         dev_priv->saveDSPBSIZE = I915_READ(DSPBSIZE);
 300         dev_priv->saveDSPBPOS = I915_READ(DSPBPOS);
 301         dev_priv->saveDSPBBASE = I915_READ(DSPBBASE);
 302         if (IS_I965GM(dev) || IS_IGD_GM(dev)) {
 303                 dev_priv->saveDSPBSURF = I915_READ(DSPBSURF);
 304                 dev_priv->saveDSPBTILEOFF = I915_READ(DSPBTILEOFF);
 305         }
 306         i915_save_palette(dev, PIPE_B);
 307         dev_priv->savePIPEBSTAT = I915_READ(I915REG_PIPEBSTAT);
 308
 309         /* CRT state */
 310         dev_priv->saveADPA = I915_READ(ADPA);
 311
 312         /* LVDS state */
 313         dev_priv->savePP_CONTROL = I915_READ(PP_CONTROL);
 314         dev_priv->savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS);
 315         dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL);
 316         if (IS_I965G(dev))
 317                 dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2);
 318         if (IS_MOBILE(dev) && !IS_I830(dev))
 319                 dev_priv->saveLVDS = I915_READ(LVDS);
 320         if (!IS_I830(dev) && !IS_845G(dev))
 321                 dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL);
 322         dev_priv->saveLVDSPP_ON = I915_READ(LVDSPP_ON);
 323         dev_priv->saveLVDSPP_OFF = I915_READ(LVDSPP_OFF);
 324         dev_priv->savePP_CYCLE = I915_READ(PP_CYCLE);
 325
 326         /* FIXME: save TV & SDVO state */
 327
 328         /* FBC state */
 329         dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE);
 330         dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE);
 331         dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2);
 332         dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL);
 333
 334         /* Interrupt state */
 335         dev_priv->saveIIR = I915_READ(I915REG_INT_IDENTITY_R);
 336         dev_priv->saveIER = I915_READ(I915REG_INT_ENABLE_R);
 337         dev_priv->saveIMR = I915_READ(I915REG_INT_MASK_R);
 338
 339         /* VGA state */
 340         dev_priv->saveVCLK_DIVISOR_VGA0 = I915_READ(VCLK_DIVISOR_VGA0);
 341         dev_priv->saveVCLK_DIVISOR_VGA1 = I915_READ(VCLK_DIVISOR_VGA1);
 342         dev_priv->saveVCLK_POST_DIV = I915_READ(VCLK_POST_DIV);
 343         dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
 344
 345         /* Clock gating state */
 346         dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D);
 347
 348         /* Cache mode state */
 349         dev_priv->saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0);
 350
 351         /* Memory Arbitration state */
 352         dev_priv->saveMI_ARB_STATE = I915_READ(MI_ARB_STATE);
 353
 354         /* Scratch space */
 355         for (i = 0; i < 16; i++) {
 356                 dev_priv->saveSWF0[i] = I915_READ(SWF0 + (i << 2));
 357                 dev_priv->saveSWF1[i] = I915_READ(SWF10 + (i << 2));
 358         }
 359         for (i = 0; i < 3; i++)
 360                 dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
 361
 362         i915_save_vga(dev);
 363
 364         /* Shut down the device */
 365         pci_disable_device(dev->pdev);
 366         pci_set_power_state(dev->pdev, PCI_D3hot);
 367
 368         return 0;
 369 }
 370
 371 static int i915_resume(struct drm_device *dev)
 372 {
 373         struct drm_i915_private *dev_priv = dev->dev_private;
 374         int i;
 375
 376         pci_set_power_state(dev->pdev, PCI_D0);
 377         pci_restore_state(dev->pdev);
 378         if (pci_enable_device(dev->pdev))
 379                 return -1;
 380
 381         pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
 382
 383         /* Pipe & plane A info */
 384         /* Prime the clock */
 385         if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
 386                 I915_WRITE(DPLL_A, dev_priv->saveDPLL_A &
 387                            ~DPLL_VCO_ENABLE);
 388                 udelay(150);
 389         }
 390         I915_WRITE(FPA0, dev_priv->saveFPA0);
 391         I915_WRITE(FPA1, dev_priv->saveFPA1);
 392         /* Actually enable it */
 393         I915_WRITE(DPLL_A, dev_priv->saveDPLL_A);
 394         udelay(150);
 395         if (IS_I965G(dev))
 396                 I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD);
 397         udelay(150);
 398
 399         /* Restore mode */
 400         I915_WRITE(HTOTAL_A, dev_priv->saveHTOTAL_A);
 401         I915_WRITE(HBLANK_A, dev_priv->saveHBLANK_A);
 402         I915_WRITE(HSYNC_A, dev_priv->saveHSYNC_A);
 403         I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A);
 404         I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A);
 405         I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A);
 406         I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A);
 407
 408         /* Restore plane info */
 409         I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE);
 410         I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS);
 411         I915_WRITE(PIPEASRC, dev_priv->savePIPEASRC);
 412         I915_WRITE(DSPABASE, dev_priv->saveDSPABASE);
 413         I915_WRITE(DSPASTRIDE, dev_priv->saveDSPASTRIDE);
 414         if (IS_I965G(dev)) {
 415                 I915_WRITE(DSPASURF, dev_priv->saveDSPASURF);
 416                 I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF);
 417         }
 418
 419         I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF);
 420
 421         i915_restore_palette(dev, PIPE_A);
 422         /* Enable the plane */
 423         I915_WRITE(DSPACNTR, dev_priv->saveDSPACNTR);
 424         I915_WRITE(DSPABASE, I915_READ(DSPABASE));
 425
 426         /* Pipe & plane B info */
 427         if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) {
 428                 I915_WRITE(DPLL_B, dev_priv->saveDPLL_B &
 429                            ~DPLL_VCO_ENABLE);
 430                 udelay(150);
 431         }
 432         I915_WRITE(FPB0, dev_priv->saveFPB0);
 433         I915_WRITE(FPB1, dev_priv->saveFPB1);
 434         /* Actually enable it */
 435         I915_WRITE(DPLL_B, dev_priv->saveDPLL_B);
 436         udelay(150);
 437         if (IS_I965G(dev))
 438                 I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD);
 439         udelay(150);
 440
 441         /* Restore mode */
 442         I915_WRITE(HTOTAL_B, dev_priv->saveHTOTAL_B);
 443         I915_WRITE(HBLANK_B, dev_priv->saveHBLANK_B);
 444         I915_WRITE(HSYNC_B, dev_priv->saveHSYNC_B);
 445         I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B);
 446         I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B);
 447         I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B);
 448         I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B);
 449
 450         /* Restore plane info */
 451         I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE);
 452         I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS);
 453         I915_WRITE(PIPEBSRC, dev_priv->savePIPEBSRC);
 454         I915_WRITE(DSPBBASE, dev_priv->saveDSPBBASE);
 455         I915_WRITE(DSPBSTRIDE, dev_priv->saveDSPBSTRIDE);
 456         if (IS_I965G(dev)) {
 457                 I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF);
 458                 I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF);
 459         }
 460
 461         I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF);
 462
 463         i915_restore_palette(dev, PIPE_B);
 464         /* Enable the plane */
 465         I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
 466         I915_WRITE(DSPBBASE, I915_READ(DSPBBASE));
 467
 468         /* CRT state */
 469         I915_WRITE(ADPA, dev_priv->saveADPA);
 470
 471         /* LVDS state */
 472         if (IS_I965G(dev))
 473                 I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2);
 474         if (IS_MOBILE(dev) && !IS_I830(dev))
 475                 I915_WRITE(LVDS, dev_priv->saveLVDS);
 476         if (!IS_I830(dev) && !IS_845G(dev))
 477                 I915_WRITE(PFIT_CONTROL, dev_priv->savePFIT_CONTROL);
 478
 479         I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS);
 480         I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL);
 481         I915_WRITE(LVDSPP_ON, dev_priv->saveLVDSPP_ON);
 482         I915_WRITE(LVDSPP_OFF, dev_priv->saveLVDSPP_OFF);
 483         I915_WRITE(PP_CYCLE, dev_priv->savePP_CYCLE);
 484         I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL);
 485
 486         /* FIXME: restore TV & SDVO state */
 487
 488         /* FBC info */
 489         I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE);
 490         I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE);
 491         I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2);
 492         I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL);
 493
 494         /* VGA state */
 495         I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL);
 496         I915_WRITE(VCLK_DIVISOR_VGA0, dev_priv->saveVCLK_DIVISOR_VGA0);
 497         I915_WRITE(VCLK_DIVISOR_VGA1, dev_priv->saveVCLK_DIVISOR_VGA1);
 498         I915_WRITE(VCLK_POST_DIV, dev_priv->saveVCLK_POST_DIV);
 499         udelay(150);
 500
 501         /* Clock gating state */
 502         I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D);
 503
 504         /* Cache mode state */
 505         I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000);
 506
 507         /* Memory arbitration state */
 508         I915_WRITE (MI_ARB_STATE, dev_priv->saveMI_ARB_STATE | 0xffff0000);
 509
 510         for (i = 0; i < 16; i++) {
 511                 I915_WRITE(SWF0 + (i << 2), dev_priv->saveSWF0[i]);
 512                 I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i+7]);
 513         }
 514         for (i = 0; i < 3; i++)
 515                 I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]);
 516
 517         i915_restore_vga(dev);
 518
 519         return 0;
 520 }
 521
 522 static struct drm_driver driver = {
 523         /* don't use mtrr's here, the Xserver or user space app should
 524          * deal with them for intel hardware.
 525          */
 526         .driver_features =
 527             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
 528             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_IRQ_VBL |
 529             DRIVER_IRQ_VBL2,
 530         .load = i915_driver_load,
 531         .unload = i915_driver_unload,
 532         .lastclose = i915_driver_lastclose,
 533         .preclose = i915_driver_preclose,
 534         .suspend = i915_suspend,
 535         .resume = i915_resume,
 536         .device_is_agp = i915_driver_device_is_agp,
 537         .vblank_wait = i915_driver_vblank_wait,
 538         .vblank_wait2 = i915_driver_vblank_wait2,
 539         .irq_preinstall = i915_driver_irq_preinstall,
 540         .irq_postinstall = i915_driver_irq_postinstall,
 541         .irq_uninstall = i915_driver_irq_uninstall,
 542         .irq_handler = i915_driver_irq_handler,
 543         .reclaim_buffers = drm_core_reclaim_buffers,
 544         .get_map_ofs = drm_core_get_map_ofs,
 545         .get_reg_ofs = drm_core_get_reg_ofs,
 546         .ioctls = i915_ioctls,
 547         .fops = {
 548                  .owner = THIS_MODULE,
 549                  .open = drm_open,
 550                  .release = drm_release,
 551                  .ioctl = drm_ioctl,
 552                  .mmap = drm_mmap,
 553                  .poll = drm_poll,
 554                  .fasync = drm_fasync,
 555 #ifdef CONFIG_COMPAT
 556                  .compat_ioctl = i915_compat_ioctl,
 557 #endif
 558         },
 559
 560         .pci_driver = {
 561                  .name = DRIVER_NAME,
 562                  .id_table = pciidlist,
 563         },
 564
 565         .name = DRIVER_NAME,
 566         .desc = DRIVER_DESC,
 567         .date = DRIVER_DATE,
 568         .major = DRIVER_MAJOR,
 569         .minor = DRIVER_MINOR,
 570         .patchlevel = DRIVER_PATCHLEVEL,
 571 };
 572
 573 static int __init i915_init(void)
 574 {
 575         driver.num_ioctls = i915_max_ioctl;
 576         return drm_init(&driver);
 577 }
 578
 579 static void __exit i915_exit(void)
 580 {
 581         drm_exit(&driver);
 582 }
 583
 584 module_init(i915_init);
 585 module_exit(i915_exit);
 586
 587 MODULE_AUTHOR(DRIVER_AUTHOR);
 588 MODULE_DESCRIPTION(DRIVER_DESC);
 589 MODULE_LICENSE("GPL and additional rights");