1/* 2 * 3 * Copyright 2008 (c) Intel Corporation 4 * Jesse Barnes <jbarnes@virtuousgeek.org> 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 */ 26 27#include "drmP.h" 28#include "drm.h" 29#include "i915_drm.h" 30#include "intel_drv.h" 31 32static bool i915_pipe_enabled(struct drm_device *dev, enum pipe pipe) 33{ 34 struct drm_i915_private *dev_priv = dev->dev_private; 35 u32 dpll_reg; 36 37 if (HAS_PCH_SPLIT(dev)) { 38 dpll_reg = (pipe == PIPE_A) ? PCH_DPLL_A: PCH_DPLL_B; 39 } else { 40 dpll_reg = (pipe == PIPE_A) ? DPLL_A: DPLL_B; 41 } 42 43 return (I915_READ(dpll_reg) & DPLL_VCO_ENABLE); 44} 45 46static void i915_save_palette(struct drm_device *dev, enum pipe pipe) 47{ 48 struct drm_i915_private *dev_priv = dev->dev_private; 49 unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B); 50 u32 *array; 51 int i; 52 53 if (!i915_pipe_enabled(dev, pipe)) 54 return; 55 56 if (HAS_PCH_SPLIT(dev)) 57 reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B; 58 59 if (pipe == PIPE_A) 60 array = dev_priv->save_palette_a; 61 else 62 array = dev_priv->save_palette_b; 63 64 for(i = 0; i < 256; i++) 65 array[i] = I915_READ(reg + (i << 2)); 66} 67 68static void i915_restore_palette(struct drm_device *dev, enum pipe pipe) 69{ 70 struct drm_i915_private *dev_priv = dev->dev_private; 71 unsigned long reg = (pipe == PIPE_A ? PALETTE_A : PALETTE_B); 72 u32 *array; 73 int i; 74 75 if (!i915_pipe_enabled(dev, pipe)) 76 return; 77 78 if (HAS_PCH_SPLIT(dev)) 79 reg = (pipe == PIPE_A) ? LGC_PALETTE_A : LGC_PALETTE_B; 80 81 if (pipe == PIPE_A) 82 array = dev_priv->save_palette_a; 83 else 84 array = dev_priv->save_palette_b; 85 86 for(i = 0; i < 256; i++) 87 I915_WRITE(reg + (i << 2), array[i]); 88} 89 90static u8 i915_read_indexed(struct drm_device *dev, u16 index_port, u16 data_port, u8 reg) 91{ 92 struct drm_i915_private *dev_priv = dev->dev_private; 93 94 I915_WRITE8(index_port, reg); 95 return I915_READ8(data_port); 96} 97 98static u8 i915_read_ar(struct drm_device *dev, u16 st01, u8 reg, u16 palette_enable) 99{ 100 struct drm_i915_private *dev_priv = dev->dev_private; 101 102 I915_READ8(st01); 103 I915_WRITE8(VGA_AR_INDEX, palette_enable | reg); 104 return I915_READ8(VGA_AR_DATA_READ); 105} 106 107static void i915_write_ar(struct drm_device *dev, u16 st01, u8 reg, u8 val, u16 palette_enable) 108{ 109 struct drm_i915_private *dev_priv = dev->dev_private; 110 111 I915_READ8(st01); 112 I915_WRITE8(VGA_AR_INDEX, palette_enable | reg); 113 I915_WRITE8(VGA_AR_DATA_WRITE, val); 114} 115 116static void i915_write_indexed(struct drm_device *dev, u16 index_port, u16 data_port, u8 reg, u8 val) 117{ 118 struct drm_i915_private *dev_priv = dev->dev_private; 119 120 I915_WRITE8(index_port, reg); 121 I915_WRITE8(data_port, val); 122} 123 124static void i915_save_vga(struct drm_device *dev) 125{ 126 struct drm_i915_private *dev_priv = dev->dev_private; 127 int i; 128 u16 cr_index, cr_data, st01; 129 130 /* VGA color palette registers */ 131 dev_priv->saveDACMASK = I915_READ8(VGA_DACMASK); 132 133 /* MSR bits */ 134 dev_priv->saveMSR = I915_READ8(VGA_MSR_READ); 135 if (dev_priv->saveMSR & VGA_MSR_CGA_MODE) { 136 cr_index = VGA_CR_INDEX_CGA; 137 cr_data = VGA_CR_DATA_CGA; 138 st01 = VGA_ST01_CGA; 139 } else { 140 cr_index = VGA_CR_INDEX_MDA; 141 cr_data = VGA_CR_DATA_MDA; 142 st01 = VGA_ST01_MDA; 143 } 144 145 /* CRT controller regs */ 146 i915_write_indexed(dev, cr_index, cr_data, 0x11, 147 i915_read_indexed(dev, cr_index, cr_data, 0x11) & 148 (~0x80)); 149 for (i = 0; i <= 0x24; i++) 150 dev_priv->saveCR[i] = 151 i915_read_indexed(dev, cr_index, cr_data, i); 152 /* Make sure we don't turn off CR group 0 writes */ 153 dev_priv->saveCR[0x11] &= ~0x80; 154 155 /* Attribute controller registers */ 156 I915_READ8(st01); 157 dev_priv->saveAR_INDEX = I915_READ8(VGA_AR_INDEX); 158 for (i = 0; i <= 0x14; i++) 159 dev_priv->saveAR[i] = i915_read_ar(dev, st01, i, 0); 160 I915_READ8(st01); 161 I915_WRITE8(VGA_AR_INDEX, dev_priv->saveAR_INDEX); 162 I915_READ8(st01); 163 164 /* Graphics controller registers */ 165 for (i = 0; i < 9; i++) 166 dev_priv->saveGR[i] = 167 i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, i); 168 169 dev_priv->saveGR[0x10] = 170 i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x10); 171 dev_priv->saveGR[0x11] = 172 i915_read_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x11); 173 dev_priv->saveGR[0x18] = 174 i915_read_indexed(dev, 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(dev, VGA_SR_INDEX, VGA_SR_DATA, i); 180} 181 182static 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 I915_WRITE8(VGA_MSR_WRITE, dev_priv->saveMSR); 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(dev, 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(dev, cr_index, cr_data, 0x11, dev_priv->saveCR[0x11]); 208 for (i = 0; i <= 0x24; i++) 209 i915_write_indexed(dev, 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(dev, VGA_GR_INDEX, VGA_GR_DATA, i, 214 dev_priv->saveGR[i]); 215 216 i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x10, 217 dev_priv->saveGR[0x10]); 218 i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x11, 219 dev_priv->saveGR[0x11]); 220 i915_write_indexed(dev, VGA_GR_INDEX, VGA_GR_DATA, 0x18, 221 dev_priv->saveGR[0x18]); 222 223 /* Attribute controller registers */ 224 I915_READ8(st01); /* switch back to index mode */ 225 for (i = 0; i <= 0x14; i++) 226 i915_write_ar(dev, st01, i, dev_priv->saveAR[i], 0); 227 I915_READ8(st01); /* switch back to index mode */ 228 I915_WRITE8(VGA_AR_INDEX, dev_priv->saveAR_INDEX | 0x20); 229 I915_READ8(st01); 230 231 /* VGA color palette registers */ 232 I915_WRITE8(VGA_DACMASK, dev_priv->saveDACMASK); 233} 234 235static void i915_save_modeset_reg(struct drm_device *dev) 236{ 237 struct drm_i915_private *dev_priv = dev->dev_private; 238 239 if (drm_core_check_feature(dev, DRIVER_MODESET)) 240 return; 241 242 if (HAS_PCH_SPLIT(dev)) { 243 dev_priv->savePCH_DREF_CONTROL = I915_READ(PCH_DREF_CONTROL); 244 dev_priv->saveDISP_ARB_CTL = I915_READ(DISP_ARB_CTL); 245 } 246 247 /* Pipe & plane A info */ 248 dev_priv->savePIPEACONF = I915_READ(PIPEACONF); 249 dev_priv->savePIPEASRC = I915_READ(PIPEASRC); 250 if (HAS_PCH_SPLIT(dev)) { 251 dev_priv->saveFPA0 = I915_READ(PCH_FPA0); 252 dev_priv->saveFPA1 = I915_READ(PCH_FPA1); 253 dev_priv->saveDPLL_A = I915_READ(PCH_DPLL_A); 254 } else { 255 dev_priv->saveFPA0 = I915_READ(FPA0); 256 dev_priv->saveFPA1 = I915_READ(FPA1); 257 dev_priv->saveDPLL_A = I915_READ(DPLL_A); 258 } 259 if (IS_I965G(dev) && !HAS_PCH_SPLIT(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 if (!HAS_PCH_SPLIT(dev)) 268 dev_priv->saveBCLRPAT_A = I915_READ(BCLRPAT_A); 269 270 if (HAS_PCH_SPLIT(dev)) { 271 dev_priv->savePIPEA_DATA_M1 = I915_READ(PIPEA_DATA_M1); 272 dev_priv->savePIPEA_DATA_N1 = I915_READ(PIPEA_DATA_N1); 273 dev_priv->savePIPEA_LINK_M1 = I915_READ(PIPEA_LINK_M1); 274 dev_priv->savePIPEA_LINK_N1 = I915_READ(PIPEA_LINK_N1); 275 276 dev_priv->saveFDI_TXA_CTL = I915_READ(FDI_TXA_CTL); 277 dev_priv->saveFDI_RXA_CTL = I915_READ(FDI_RXA_CTL); 278 279 dev_priv->savePFA_CTL_1 = I915_READ(PFA_CTL_1); 280 dev_priv->savePFA_WIN_SZ = I915_READ(PFA_WIN_SZ); 281 dev_priv->savePFA_WIN_POS = I915_READ(PFA_WIN_POS); 282 283 dev_priv->saveTRANSACONF = I915_READ(TRANSACONF); 284 dev_priv->saveTRANS_HTOTAL_A = I915_READ(TRANS_HTOTAL_A); 285 dev_priv->saveTRANS_HBLANK_A = I915_READ(TRANS_HBLANK_A); 286 dev_priv->saveTRANS_HSYNC_A = I915_READ(TRANS_HSYNC_A); 287 dev_priv->saveTRANS_VTOTAL_A = I915_READ(TRANS_VTOTAL_A); 288 dev_priv->saveTRANS_VBLANK_A = I915_READ(TRANS_VBLANK_A); 289 dev_priv->saveTRANS_VSYNC_A = I915_READ(TRANS_VSYNC_A); 290 } 291 292 dev_priv->saveDSPACNTR = I915_READ(DSPACNTR); 293 dev_priv->saveDSPASTRIDE = I915_READ(DSPASTRIDE); 294 dev_priv->saveDSPASIZE = I915_READ(DSPASIZE); 295 dev_priv->saveDSPAPOS = I915_READ(DSPAPOS); 296 dev_priv->saveDSPAADDR = I915_READ(DSPAADDR); 297 if (IS_I965G(dev)) { 298 dev_priv->saveDSPASURF = I915_READ(DSPASURF); 299 dev_priv->saveDSPATILEOFF = I915_READ(DSPATILEOFF); 300 } 301 i915_save_palette(dev, PIPE_A); 302 dev_priv->savePIPEASTAT = I915_READ(PIPEASTAT); 303 304 /* Pipe & plane B info */ 305 dev_priv->savePIPEBCONF = I915_READ(PIPEBCONF); 306 dev_priv->savePIPEBSRC = I915_READ(PIPEBSRC); 307 if (HAS_PCH_SPLIT(dev)) { 308 dev_priv->saveFPB0 = I915_READ(PCH_FPB0); 309 dev_priv->saveFPB1 = I915_READ(PCH_FPB1); 310 dev_priv->saveDPLL_B = I915_READ(PCH_DPLL_B); 311 } else { 312 dev_priv->saveFPB0 = I915_READ(FPB0); 313 dev_priv->saveFPB1 = I915_READ(FPB1); 314 dev_priv->saveDPLL_B = I915_READ(DPLL_B); 315 } 316 if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) 317 dev_priv->saveDPLL_B_MD = I915_READ(DPLL_B_MD); 318 dev_priv->saveHTOTAL_B = I915_READ(HTOTAL_B); 319 dev_priv->saveHBLANK_B = I915_READ(HBLANK_B); 320 dev_priv->saveHSYNC_B = I915_READ(HSYNC_B); 321 dev_priv->saveVTOTAL_B = I915_READ(VTOTAL_B); 322 dev_priv->saveVBLANK_B = I915_READ(VBLANK_B); 323 dev_priv->saveVSYNC_B = I915_READ(VSYNC_B); 324 if (!HAS_PCH_SPLIT(dev)) 325 dev_priv->saveBCLRPAT_B = I915_READ(BCLRPAT_B); 326 327 if (HAS_PCH_SPLIT(dev)) { 328 dev_priv->savePIPEB_DATA_M1 = I915_READ(PIPEB_DATA_M1); 329 dev_priv->savePIPEB_DATA_N1 = I915_READ(PIPEB_DATA_N1); 330 dev_priv->savePIPEB_LINK_M1 = I915_READ(PIPEB_LINK_M1); 331 dev_priv->savePIPEB_LINK_N1 = I915_READ(PIPEB_LINK_N1); 332 333 dev_priv->saveFDI_TXB_CTL = I915_READ(FDI_TXB_CTL); 334 dev_priv->saveFDI_RXB_CTL = I915_READ(FDI_RXB_CTL); 335 336 dev_priv->savePFB_CTL_1 = I915_READ(PFB_CTL_1); 337 dev_priv->savePFB_WIN_SZ = I915_READ(PFB_WIN_SZ); 338 dev_priv->savePFB_WIN_POS = I915_READ(PFB_WIN_POS); 339 340 dev_priv->saveTRANSBCONF = I915_READ(TRANSBCONF); 341 dev_priv->saveTRANS_HTOTAL_B = I915_READ(TRANS_HTOTAL_B); 342 dev_priv->saveTRANS_HBLANK_B = I915_READ(TRANS_HBLANK_B); 343 dev_priv->saveTRANS_HSYNC_B = I915_READ(TRANS_HSYNC_B); 344 dev_priv->saveTRANS_VTOTAL_B = I915_READ(TRANS_VTOTAL_B); 345 dev_priv->saveTRANS_VBLANK_B = I915_READ(TRANS_VBLANK_B); 346 dev_priv->saveTRANS_VSYNC_B = I915_READ(TRANS_VSYNC_B); 347 } 348 349 dev_priv->saveDSPBCNTR = I915_READ(DSPBCNTR); 350 dev_priv->saveDSPBSTRIDE = I915_READ(DSPBSTRIDE); 351 dev_priv->saveDSPBSIZE = I915_READ(DSPBSIZE); 352 dev_priv->saveDSPBPOS = I915_READ(DSPBPOS); 353 dev_priv->saveDSPBADDR = I915_READ(DSPBADDR); 354 if (IS_I965GM(dev) || IS_GM45(dev)) { 355 dev_priv->saveDSPBSURF = I915_READ(DSPBSURF); 356 dev_priv->saveDSPBTILEOFF = I915_READ(DSPBTILEOFF); 357 } 358 i915_save_palette(dev, PIPE_B); 359 dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT); 360 return; 361} 362 363static void i915_restore_modeset_reg(struct drm_device *dev) 364{ 365 struct drm_i915_private *dev_priv = dev->dev_private; 366 int dpll_a_reg, fpa0_reg, fpa1_reg; 367 int dpll_b_reg, fpb0_reg, fpb1_reg; 368 369 if (drm_core_check_feature(dev, DRIVER_MODESET)) 370 return; 371 372 if (HAS_PCH_SPLIT(dev)) { 373 dpll_a_reg = PCH_DPLL_A; 374 dpll_b_reg = PCH_DPLL_B; 375 fpa0_reg = PCH_FPA0; 376 fpb0_reg = PCH_FPB0; 377 fpa1_reg = PCH_FPA1; 378 fpb1_reg = PCH_FPB1; 379 } else { 380 dpll_a_reg = DPLL_A; 381 dpll_b_reg = DPLL_B; 382 fpa0_reg = FPA0; 383 fpb0_reg = FPB0; 384 fpa1_reg = FPA1; 385 fpb1_reg = FPB1; 386 } 387 388 if (HAS_PCH_SPLIT(dev)) { 389 I915_WRITE(PCH_DREF_CONTROL, dev_priv->savePCH_DREF_CONTROL); 390 I915_WRITE(DISP_ARB_CTL, dev_priv->saveDISP_ARB_CTL); 391 } 392 393 /* Pipe & plane A info */ 394 /* Prime the clock */ 395 if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) { 396 I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A & 397 ~DPLL_VCO_ENABLE); 398 POSTING_READ(dpll_a_reg); 399 udelay(150); 400 } 401 I915_WRITE(fpa0_reg, dev_priv->saveFPA0); 402 I915_WRITE(fpa1_reg, dev_priv->saveFPA1); 403 /* Actually enable it */ 404 I915_WRITE(dpll_a_reg, dev_priv->saveDPLL_A); 405 POSTING_READ(dpll_a_reg); 406 udelay(150); 407 if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) { 408 I915_WRITE(DPLL_A_MD, dev_priv->saveDPLL_A_MD); 409 POSTING_READ(DPLL_A_MD); 410 } 411 udelay(150); 412 413 /* Restore mode */ 414 I915_WRITE(HTOTAL_A, dev_priv->saveHTOTAL_A); 415 I915_WRITE(HBLANK_A, dev_priv->saveHBLANK_A); 416 I915_WRITE(HSYNC_A, dev_priv->saveHSYNC_A); 417 I915_WRITE(VTOTAL_A, dev_priv->saveVTOTAL_A); 418 I915_WRITE(VBLANK_A, dev_priv->saveVBLANK_A); 419 I915_WRITE(VSYNC_A, dev_priv->saveVSYNC_A); 420 if (!HAS_PCH_SPLIT(dev)) 421 I915_WRITE(BCLRPAT_A, dev_priv->saveBCLRPAT_A); 422 423 if (HAS_PCH_SPLIT(dev)) { 424 I915_WRITE(PIPEA_DATA_M1, dev_priv->savePIPEA_DATA_M1); 425 I915_WRITE(PIPEA_DATA_N1, dev_priv->savePIPEA_DATA_N1); 426 I915_WRITE(PIPEA_LINK_M1, dev_priv->savePIPEA_LINK_M1); 427 I915_WRITE(PIPEA_LINK_N1, dev_priv->savePIPEA_LINK_N1); 428 429 I915_WRITE(FDI_RXA_CTL, dev_priv->saveFDI_RXA_CTL); 430 I915_WRITE(FDI_TXA_CTL, dev_priv->saveFDI_TXA_CTL); 431 432 I915_WRITE(PFA_CTL_1, dev_priv->savePFA_CTL_1); 433 I915_WRITE(PFA_WIN_SZ, dev_priv->savePFA_WIN_SZ); 434 I915_WRITE(PFA_WIN_POS, dev_priv->savePFA_WIN_POS); 435 436 I915_WRITE(TRANSACONF, dev_priv->saveTRANSACONF); 437 I915_WRITE(TRANS_HTOTAL_A, dev_priv->saveTRANS_HTOTAL_A); 438 I915_WRITE(TRANS_HBLANK_A, dev_priv->saveTRANS_HBLANK_A); 439 I915_WRITE(TRANS_HSYNC_A, dev_priv->saveTRANS_HSYNC_A); 440 I915_WRITE(TRANS_VTOTAL_A, dev_priv->saveTRANS_VTOTAL_A); 441 I915_WRITE(TRANS_VBLANK_A, dev_priv->saveTRANS_VBLANK_A); 442 I915_WRITE(TRANS_VSYNC_A, dev_priv->saveTRANS_VSYNC_A); 443 } 444 445 /* Restore plane info */ 446 I915_WRITE(DSPASIZE, dev_priv->saveDSPASIZE); 447 I915_WRITE(DSPAPOS, dev_priv->saveDSPAPOS); 448 I915_WRITE(PIPEASRC, dev_priv->savePIPEASRC); 449 I915_WRITE(DSPAADDR, dev_priv->saveDSPAADDR); 450 I915_WRITE(DSPASTRIDE, dev_priv->saveDSPASTRIDE); 451 if (IS_I965G(dev)) { 452 I915_WRITE(DSPASURF, dev_priv->saveDSPASURF); 453 I915_WRITE(DSPATILEOFF, dev_priv->saveDSPATILEOFF); 454 } 455 456 I915_WRITE(PIPEACONF, dev_priv->savePIPEACONF); 457 458 i915_restore_palette(dev, PIPE_A); 459 /* Enable the plane */ 460 I915_WRITE(DSPACNTR, dev_priv->saveDSPACNTR); 461 I915_WRITE(DSPAADDR, I915_READ(DSPAADDR)); 462 463 /* Pipe & plane B info */ 464 if (dev_priv->saveDPLL_B & DPLL_VCO_ENABLE) { 465 I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B & 466 ~DPLL_VCO_ENABLE); 467 POSTING_READ(dpll_b_reg); 468 udelay(150); 469 } 470 I915_WRITE(fpb0_reg, dev_priv->saveFPB0); 471 I915_WRITE(fpb1_reg, dev_priv->saveFPB1); 472 /* Actually enable it */ 473 I915_WRITE(dpll_b_reg, dev_priv->saveDPLL_B); 474 POSTING_READ(dpll_b_reg); 475 udelay(150); 476 if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) { 477 I915_WRITE(DPLL_B_MD, dev_priv->saveDPLL_B_MD); 478 POSTING_READ(DPLL_B_MD); 479 } 480 udelay(150); 481 482 /* Restore mode */ 483 I915_WRITE(HTOTAL_B, dev_priv->saveHTOTAL_B); 484 I915_WRITE(HBLANK_B, dev_priv->saveHBLANK_B); 485 I915_WRITE(HSYNC_B, dev_priv->saveHSYNC_B); 486 I915_WRITE(VTOTAL_B, dev_priv->saveVTOTAL_B); 487 I915_WRITE(VBLANK_B, dev_priv->saveVBLANK_B); 488 I915_WRITE(VSYNC_B, dev_priv->saveVSYNC_B); 489 if (!HAS_PCH_SPLIT(dev)) 490 I915_WRITE(BCLRPAT_B, dev_priv->saveBCLRPAT_B); 491 492 if (HAS_PCH_SPLIT(dev)) { 493 I915_WRITE(PIPEB_DATA_M1, dev_priv->savePIPEB_DATA_M1); 494 I915_WRITE(PIPEB_DATA_N1, dev_priv->savePIPEB_DATA_N1); 495 I915_WRITE(PIPEB_LINK_M1, dev_priv->savePIPEB_LINK_M1); 496 I915_WRITE(PIPEB_LINK_N1, dev_priv->savePIPEB_LINK_N1); 497 498 I915_WRITE(FDI_RXB_CTL, dev_priv->saveFDI_RXB_CTL); 499 I915_WRITE(FDI_TXB_CTL, dev_priv->saveFDI_TXB_CTL); 500 501 I915_WRITE(PFB_CTL_1, dev_priv->savePFB_CTL_1); 502 I915_WRITE(PFB_WIN_SZ, dev_priv->savePFB_WIN_SZ); 503 I915_WRITE(PFB_WIN_POS, dev_priv->savePFB_WIN_POS); 504 505 I915_WRITE(TRANSBCONF, dev_priv->saveTRANSBCONF); 506 I915_WRITE(TRANS_HTOTAL_B, dev_priv->saveTRANS_HTOTAL_B); 507 I915_WRITE(TRANS_HBLANK_B, dev_priv->saveTRANS_HBLANK_B); 508 I915_WRITE(TRANS_HSYNC_B, dev_priv->saveTRANS_HSYNC_B); 509 I915_WRITE(TRANS_VTOTAL_B, dev_priv->saveTRANS_VTOTAL_B); 510 I915_WRITE(TRANS_VBLANK_B, dev_priv->saveTRANS_VBLANK_B); 511 I915_WRITE(TRANS_VSYNC_B, dev_priv->saveTRANS_VSYNC_B); 512 } 513 514 /* Restore plane info */ 515 I915_WRITE(DSPBSIZE, dev_priv->saveDSPBSIZE); 516 I915_WRITE(DSPBPOS, dev_priv->saveDSPBPOS); 517 I915_WRITE(PIPEBSRC, dev_priv->savePIPEBSRC); 518 I915_WRITE(DSPBADDR, dev_priv->saveDSPBADDR); 519 I915_WRITE(DSPBSTRIDE, dev_priv->saveDSPBSTRIDE); 520 if (IS_I965G(dev)) { 521 I915_WRITE(DSPBSURF, dev_priv->saveDSPBSURF); 522 I915_WRITE(DSPBTILEOFF, dev_priv->saveDSPBTILEOFF); 523 } 524 525 I915_WRITE(PIPEBCONF, dev_priv->savePIPEBCONF); 526 527 i915_restore_palette(dev, PIPE_B); 528 /* Enable the plane */ 529 I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR); 530 I915_WRITE(DSPBADDR, I915_READ(DSPBADDR)); 531 532 return; 533} 534 535void i915_save_display(struct drm_device *dev) 536{ 537 struct drm_i915_private *dev_priv = dev->dev_private; 538 539 /* Display arbitration control */ 540 dev_priv->saveDSPARB = I915_READ(DSPARB); 541 542 /* This is only meaningful in non-KMS mode */ 543 /* Don't save them in KMS mode */ 544 i915_save_modeset_reg(dev); 545 546 /* Cursor state */ 547 dev_priv->saveCURACNTR = I915_READ(CURACNTR); 548 dev_priv->saveCURAPOS = I915_READ(CURAPOS); 549 dev_priv->saveCURABASE = I915_READ(CURABASE); 550 dev_priv->saveCURBCNTR = I915_READ(CURBCNTR); 551 dev_priv->saveCURBPOS = I915_READ(CURBPOS); 552 dev_priv->saveCURBBASE = I915_READ(CURBBASE); 553 if (!IS_I9XX(dev)) 554 dev_priv->saveCURSIZE = I915_READ(CURSIZE); 555 556 /* CRT state */ 557 if (HAS_PCH_SPLIT(dev)) { 558 dev_priv->saveADPA = I915_READ(PCH_ADPA); 559 } else { 560 dev_priv->saveADPA = I915_READ(ADPA); 561 } 562 563 /* LVDS state */ 564 if (HAS_PCH_SPLIT(dev)) { 565 dev_priv->savePP_CONTROL = I915_READ(PCH_PP_CONTROL); 566 dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_PCH_CTL1); 567 dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_PCH_CTL2); 568 dev_priv->saveBLC_CPU_PWM_CTL = I915_READ(BLC_PWM_CPU_CTL); 569 dev_priv->saveBLC_CPU_PWM_CTL2 = I915_READ(BLC_PWM_CPU_CTL2); 570 dev_priv->saveLVDS = I915_READ(PCH_LVDS); 571 } else { 572 dev_priv->savePP_CONTROL = I915_READ(PP_CONTROL); 573 dev_priv->savePFIT_PGM_RATIOS = I915_READ(PFIT_PGM_RATIOS); 574 dev_priv->saveBLC_PWM_CTL = I915_READ(BLC_PWM_CTL); 575 dev_priv->saveBLC_HIST_CTL = I915_READ(BLC_HIST_CTL); 576 if (IS_I965G(dev)) 577 dev_priv->saveBLC_PWM_CTL2 = I915_READ(BLC_PWM_CTL2); 578 if (IS_MOBILE(dev) && !IS_I830(dev)) 579 dev_priv->saveLVDS = I915_READ(LVDS); 580 } 581 582 if (!IS_I830(dev) && !IS_845G(dev) && !HAS_PCH_SPLIT(dev)) 583 dev_priv->savePFIT_CONTROL = I915_READ(PFIT_CONTROL); 584 585 if (HAS_PCH_SPLIT(dev)) { 586 dev_priv->savePP_ON_DELAYS = I915_READ(PCH_PP_ON_DELAYS); 587 dev_priv->savePP_OFF_DELAYS = I915_READ(PCH_PP_OFF_DELAYS); 588 dev_priv->savePP_DIVISOR = I915_READ(PCH_PP_DIVISOR); 589 } else { 590 dev_priv->savePP_ON_DELAYS = I915_READ(PP_ON_DELAYS); 591 dev_priv->savePP_OFF_DELAYS = I915_READ(PP_OFF_DELAYS); 592 dev_priv->savePP_DIVISOR = I915_READ(PP_DIVISOR); 593 } 594 595 /* Display Port state */ 596 if (SUPPORTS_INTEGRATED_DP(dev)) { 597 dev_priv->saveDP_B = I915_READ(DP_B); 598 dev_priv->saveDP_C = I915_READ(DP_C); 599 dev_priv->saveDP_D = I915_READ(DP_D); 600 dev_priv->savePIPEA_GMCH_DATA_M = I915_READ(PIPEA_GMCH_DATA_M); 601 dev_priv->savePIPEB_GMCH_DATA_M = I915_READ(PIPEB_GMCH_DATA_M); 602 dev_priv->savePIPEA_GMCH_DATA_N = I915_READ(PIPEA_GMCH_DATA_N); 603 dev_priv->savePIPEB_GMCH_DATA_N = I915_READ(PIPEB_GMCH_DATA_N); 604 dev_priv->savePIPEA_DP_LINK_M = I915_READ(PIPEA_DP_LINK_M); 605 dev_priv->savePIPEB_DP_LINK_M = I915_READ(PIPEB_DP_LINK_M); 606 dev_priv->savePIPEA_DP_LINK_N = I915_READ(PIPEA_DP_LINK_N); 607 dev_priv->savePIPEB_DP_LINK_N = I915_READ(PIPEB_DP_LINK_N); 608 } 609 610 /* Only save FBC state on the platform that supports FBC */ 611 if (I915_HAS_FBC(dev)) { 612 if (HAS_PCH_SPLIT(dev)) { 613 dev_priv->saveDPFC_CB_BASE = I915_READ(ILK_DPFC_CB_BASE); 614 } else if (IS_GM45(dev)) { 615 dev_priv->saveDPFC_CB_BASE = I915_READ(DPFC_CB_BASE); 616 } else { 617 dev_priv->saveFBC_CFB_BASE = I915_READ(FBC_CFB_BASE); 618 dev_priv->saveFBC_LL_BASE = I915_READ(FBC_LL_BASE); 619 dev_priv->saveFBC_CONTROL2 = I915_READ(FBC_CONTROL2); 620 dev_priv->saveFBC_CONTROL = I915_READ(FBC_CONTROL); 621 } 622 } 623 624 /* VGA state */ 625 dev_priv->saveVGA0 = I915_READ(VGA0); 626 dev_priv->saveVGA1 = I915_READ(VGA1); 627 dev_priv->saveVGA_PD = I915_READ(VGA_PD); 628 if (HAS_PCH_SPLIT(dev)) 629 dev_priv->saveVGACNTRL = I915_READ(CPU_VGACNTRL); 630 else 631 dev_priv->saveVGACNTRL = I915_READ(VGACNTRL); 632 633 i915_save_vga(dev); 634} 635 636void i915_restore_display(struct drm_device *dev) 637{ 638 struct drm_i915_private *dev_priv = dev->dev_private; 639 640 /* Display arbitration */ 641 I915_WRITE(DSPARB, dev_priv->saveDSPARB); 642 643 /* Display port ratios (must be done before clock is set) */ 644 if (SUPPORTS_INTEGRATED_DP(dev)) { 645 I915_WRITE(PIPEA_GMCH_DATA_M, dev_priv->savePIPEA_GMCH_DATA_M); 646 I915_WRITE(PIPEB_GMCH_DATA_M, dev_priv->savePIPEB_GMCH_DATA_M); 647 I915_WRITE(PIPEA_GMCH_DATA_N, dev_priv->savePIPEA_GMCH_DATA_N); 648 I915_WRITE(PIPEB_GMCH_DATA_N, dev_priv->savePIPEB_GMCH_DATA_N); 649 I915_WRITE(PIPEA_DP_LINK_M, dev_priv->savePIPEA_DP_LINK_M); 650 I915_WRITE(PIPEB_DP_LINK_M, dev_priv->savePIPEB_DP_LINK_M); 651 I915_WRITE(PIPEA_DP_LINK_N, dev_priv->savePIPEA_DP_LINK_N); 652 I915_WRITE(PIPEB_DP_LINK_N, dev_priv->savePIPEB_DP_LINK_N); 653 } 654 655 /* This is only meaningful in non-KMS mode */ 656 /* Don't restore them in KMS mode */ 657 i915_restore_modeset_reg(dev); 658 659 /* Cursor state */ 660 I915_WRITE(CURAPOS, dev_priv->saveCURAPOS); 661 I915_WRITE(CURACNTR, dev_priv->saveCURACNTR); 662 I915_WRITE(CURABASE, dev_priv->saveCURABASE); 663 I915_WRITE(CURBPOS, dev_priv->saveCURBPOS); 664 I915_WRITE(CURBCNTR, dev_priv->saveCURBCNTR); 665 I915_WRITE(CURBBASE, dev_priv->saveCURBBASE); 666 if (!IS_I9XX(dev)) 667 I915_WRITE(CURSIZE, dev_priv->saveCURSIZE); 668 669 /* CRT state */ 670 if (HAS_PCH_SPLIT(dev)) 671 I915_WRITE(PCH_ADPA, dev_priv->saveADPA); 672 else 673 I915_WRITE(ADPA, dev_priv->saveADPA); 674 675 /* LVDS state */ 676 if (IS_I965G(dev) && !HAS_PCH_SPLIT(dev)) 677 I915_WRITE(BLC_PWM_CTL2, dev_priv->saveBLC_PWM_CTL2); 678 679 if (HAS_PCH_SPLIT(dev)) { 680 I915_WRITE(PCH_LVDS, dev_priv->saveLVDS); 681 } else if (IS_MOBILE(dev) && !IS_I830(dev)) 682 I915_WRITE(LVDS, dev_priv->saveLVDS); 683 684 if (!IS_I830(dev) && !IS_845G(dev) && !HAS_PCH_SPLIT(dev)) 685 I915_WRITE(PFIT_CONTROL, dev_priv->savePFIT_CONTROL); 686 687 if (HAS_PCH_SPLIT(dev)) { 688 I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->saveBLC_PWM_CTL); 689 I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->saveBLC_PWM_CTL2); 690 I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL); 691 I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->saveBLC_CPU_PWM_CTL2); 692 I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS); 693 I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS); 694 I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR); 695 I915_WRITE(PCH_PP_CONTROL, dev_priv->savePP_CONTROL); 696 I915_WRITE(MCHBAR_RENDER_STANDBY, 697 dev_priv->saveMCHBAR_RENDER_STANDBY); 698 } else { 699 I915_WRITE(PFIT_PGM_RATIOS, dev_priv->savePFIT_PGM_RATIOS); 700 I915_WRITE(BLC_PWM_CTL, dev_priv->saveBLC_PWM_CTL); 701 I915_WRITE(BLC_HIST_CTL, dev_priv->saveBLC_HIST_CTL); 702 I915_WRITE(PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS); 703 I915_WRITE(PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS); 704 I915_WRITE(PP_DIVISOR, dev_priv->savePP_DIVISOR); 705 I915_WRITE(PP_CONTROL, dev_priv->savePP_CONTROL); 706 } 707 708 /* Display Port state */ 709 if (SUPPORTS_INTEGRATED_DP(dev)) { 710 I915_WRITE(DP_B, dev_priv->saveDP_B); 711 I915_WRITE(DP_C, dev_priv->saveDP_C); 712 I915_WRITE(DP_D, dev_priv->saveDP_D); 713 } 714 715 /* only restore FBC info on the platform that supports FBC*/ 716 if (I915_HAS_FBC(dev)) { 717 if (HAS_PCH_SPLIT(dev)) { 718 ironlake_disable_fbc(dev); 719 I915_WRITE(ILK_DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); 720 } else if (IS_GM45(dev)) { 721 g4x_disable_fbc(dev); 722 I915_WRITE(DPFC_CB_BASE, dev_priv->saveDPFC_CB_BASE); 723 } else { 724 i8xx_disable_fbc(dev); 725 I915_WRITE(FBC_CFB_BASE, dev_priv->saveFBC_CFB_BASE); 726 I915_WRITE(FBC_LL_BASE, dev_priv->saveFBC_LL_BASE); 727 I915_WRITE(FBC_CONTROL2, dev_priv->saveFBC_CONTROL2); 728 I915_WRITE(FBC_CONTROL, dev_priv->saveFBC_CONTROL); 729 } 730 } 731 /* VGA state */ 732 if (HAS_PCH_SPLIT(dev)) 733 I915_WRITE(CPU_VGACNTRL, dev_priv->saveVGACNTRL); 734 else 735 I915_WRITE(VGACNTRL, dev_priv->saveVGACNTRL); 736 I915_WRITE(VGA0, dev_priv->saveVGA0); 737 I915_WRITE(VGA1, dev_priv->saveVGA1); 738 I915_WRITE(VGA_PD, dev_priv->saveVGA_PD); 739 POSTING_READ(VGA_PD); 740 udelay(150); 741 742 i915_restore_vga(dev); 743} 744 745int i915_save_state(struct drm_device *dev) 746{ 747 struct drm_i915_private *dev_priv = dev->dev_private; 748 int i; 749 750 pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB); 751 752 /* Hardware status page */ 753 dev_priv->saveHWS = I915_READ(HWS_PGA); 754 755 i915_save_display(dev); 756 757 /* Interrupt state */ 758 if (HAS_PCH_SPLIT(dev)) { 759 dev_priv->saveDEIER = I915_READ(DEIER); 760 dev_priv->saveDEIMR = I915_READ(DEIMR); 761 dev_priv->saveGTIER = I915_READ(GTIER); 762 dev_priv->saveGTIMR = I915_READ(GTIMR); 763 dev_priv->saveFDI_RXA_IMR = I915_READ(FDI_RXA_IMR); 764 dev_priv->saveFDI_RXB_IMR = I915_READ(FDI_RXB_IMR); 765 dev_priv->saveMCHBAR_RENDER_STANDBY = 766 I915_READ(MCHBAR_RENDER_STANDBY); 767 } else { 768 dev_priv->saveIER = I915_READ(IER); 769 dev_priv->saveIMR = I915_READ(IMR); 770 } 771 772 if (HAS_PCH_SPLIT(dev)) 773 ironlake_disable_drps(dev); 774 775 /* Cache mode state */ 776 dev_priv->saveCACHE_MODE_0 = I915_READ(CACHE_MODE_0); 777 778 /* Memory Arbitration state */ 779 dev_priv->saveMI_ARB_STATE = I915_READ(MI_ARB_STATE); 780 781 /* Scratch space */ 782 for (i = 0; i < 16; i++) { 783 dev_priv->saveSWF0[i] = I915_READ(SWF00 + (i << 2)); 784 dev_priv->saveSWF1[i] = I915_READ(SWF10 + (i << 2)); 785 } 786 for (i = 0; i < 3; i++) 787 dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2)); 788 789 /* Fences */ 790 switch (INTEL_INFO(dev)->gen) { 791 case 6: 792 for (i = 0; i < 16; i++) 793 dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8)); 794 break; 795 case 5: 796 case 4: 797 for (i = 0; i < 16; i++) 798 dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8)); 799 break; 800 case 3: 801 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) 802 for (i = 0; i < 8; i++) 803 dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4)); 804 case 2: 805 for (i = 0; i < 8; i++) 806 dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4)); 807 break; 808 809 } 810 811 return 0; 812} 813 814int i915_restore_state(struct drm_device *dev) 815{ 816 struct drm_i915_private *dev_priv = dev->dev_private; 817 int i; 818 819 pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB); 820 821 /* Hardware status page */ 822 I915_WRITE(HWS_PGA, dev_priv->saveHWS); 823 824 /* Fences */ 825 switch (INTEL_INFO(dev)->gen) { 826 case 6: 827 for (i = 0; i < 16; i++) 828 I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 + (i * 8), dev_priv->saveFENCE[i]); 829 break; 830 case 5: 831 case 4: 832 for (i = 0; i < 16; i++) 833 I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]); 834 break; 835 case 3: 836 case 2: 837 if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev)) 838 for (i = 0; i < 8; i++) 839 I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]); 840 for (i = 0; i < 8; i++) 841 I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]); 842 break; 843 } 844 845 i915_restore_display(dev); 846 847 /* Interrupt state */ 848 if (HAS_PCH_SPLIT(dev)) { 849 I915_WRITE(DEIER, dev_priv->saveDEIER); 850 I915_WRITE(DEIMR, dev_priv->saveDEIMR); 851 I915_WRITE(GTIER, dev_priv->saveGTIER); 852 I915_WRITE(GTIMR, dev_priv->saveGTIMR); 853 I915_WRITE(FDI_RXA_IMR, dev_priv->saveFDI_RXA_IMR); 854 I915_WRITE(FDI_RXB_IMR, dev_priv->saveFDI_RXB_IMR); 855 } else { 856 I915_WRITE (IER, dev_priv->saveIER); 857 I915_WRITE (IMR, dev_priv->saveIMR); 858 } 859 860 /* Clock gating state */ 861 intel_init_clock_gating(dev); 862 863 if (HAS_PCH_SPLIT(dev)) { 864 ironlake_enable_drps(dev); 865 intel_init_emon(dev); 866 } 867 868 /* Cache mode state */ 869 I915_WRITE (CACHE_MODE_0, dev_priv->saveCACHE_MODE_0 | 0xffff0000); 870 871 /* Memory arbitration state */ 872 I915_WRITE (MI_ARB_STATE, dev_priv->saveMI_ARB_STATE | 0xffff0000); 873 874 for (i = 0; i < 16; i++) { 875 I915_WRITE(SWF00 + (i << 2), dev_priv->saveSWF0[i]); 876 I915_WRITE(SWF10 + (i << 2), dev_priv->saveSWF1[i]); 877 } 878 for (i = 0; i < 3; i++) 879 I915_WRITE(SWF30 + (i << 2), dev_priv->saveSWF2[i]); 880 881 /* I2C state */ 882 intel_i2c_reset_gmbus(dev); 883 884 return 0; 885} 886