1 /* i915_drv.h -- Private header for the 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 #ifndef _I915_DRV_H_ 31 #define _I915_DRV_H_ 32 33 #include "i915_reg.h" 34 #include "intel_bios.h" 35 #include "intel_ringbuffer.h" 36 #include <linux/io-mapping.h> 37 #include <linux/i2c.h> 38 #include <drm/intel-gtt.h> 39 40 /* General customization: 41 */ 42 43 #define DRIVER_AUTHOR "Tungsten Graphics, Inc." 44 45 #define DRIVER_NAME "i915" 46 #define DRIVER_DESC "Intel Graphics" 47 #define DRIVER_DATE "20080730" 48 49 enum pipe { 50 PIPE_A = 0, 51 PIPE_B, 52 }; 53 54 enum plane { 55 PLANE_A = 0, 56 PLANE_B, 57 }; 58 59 #define I915_NUM_PIPE 2 60 61 #define I915_GEM_GPU_DOMAINS (~(I915_GEM_DOMAIN_CPU | I915_GEM_DOMAIN_GTT)) 62 63 /* Interface history: 64 * 65 * 1.1: Original. 66 * 1.2: Add Power Management 67 * 1.3: Add vblank support 68 * 1.4: Fix cmdbuffer path, add heap destroy 69 * 1.5: Add vblank pipe configuration 70 * 1.6: - New ioctl for scheduling buffer swaps on vertical blank 71 * - Support vertical blank on secondary display pipe 72 */ 73 #define DRIVER_MAJOR 1 74 #define DRIVER_MINOR 6 75 #define DRIVER_PATCHLEVEL 0 76 77 #define WATCH_COHERENCY 0 78 #define WATCH_EXEC 0 79 #define WATCH_RELOC 0 80 #define WATCH_LISTS 0 81 #define WATCH_PWRITE 0 82 83 #define I915_GEM_PHYS_CURSOR_0 1 84 #define I915_GEM_PHYS_CURSOR_1 2 85 #define I915_GEM_PHYS_OVERLAY_REGS 3 86 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS) 87 88 struct drm_i915_gem_phys_object { 89 int id; 90 struct page **page_list; 91 drm_dma_handle_t *handle; 92 struct drm_i915_gem_object *cur_obj; 93 }; 94 95 struct mem_block { 96 struct mem_block *next; 97 struct mem_block *prev; 98 int start; 99 int size; 100 struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */ 101 }; 102 103 struct opregion_header; 104 struct opregion_acpi; 105 struct opregion_swsci; 106 struct opregion_asle; 107 108 struct intel_opregion { 109 struct opregion_header *header; 110 struct opregion_acpi *acpi; 111 struct opregion_swsci *swsci; 112 struct opregion_asle *asle; 113 void *vbt; 114 }; 115 #define OPREGION_SIZE (8*1024) 116 117 struct intel_overlay; 118 struct intel_overlay_error_state; 119 120 struct drm_i915_master_private { 121 drm_local_map_t *sarea; 122 struct _drm_i915_sarea *sarea_priv; 123 }; 124 #define I915_FENCE_REG_NONE -1 125 126 struct drm_i915_fence_reg { 127 struct list_head lru_list; 128 struct drm_i915_gem_object *obj; 129 uint32_t setup_seqno; 130 }; 131 132 struct sdvo_device_mapping { 133 u8 initialized; 134 u8 dvo_port; 135 u8 slave_addr; 136 u8 dvo_wiring; 137 u8 i2c_pin; 138 u8 i2c_speed; 139 u8 ddc_pin; 140 }; 141 142 struct intel_display_error_state; 143 144 struct drm_i915_error_state { 145 u32 eir; 146 u32 pgtbl_er; 147 u32 pipeastat; 148 u32 pipebstat; 149 u32 ipeir; 150 u32 ipehr; 151 u32 instdone; 152 u32 acthd; 153 u32 error; /* gen6+ */ 154 u32 bcs_acthd; /* gen6+ blt engine */ 155 u32 bcs_ipehr; 156 u32 bcs_ipeir; 157 u32 bcs_instdone; 158 u32 bcs_seqno; 159 u32 vcs_acthd; /* gen6+ bsd engine */ 160 u32 vcs_ipehr; 161 u32 vcs_ipeir; 162 u32 vcs_instdone; 163 u32 vcs_seqno; 164 u32 instpm; 165 u32 instps; 166 u32 instdone1; 167 u32 seqno; 168 u64 bbaddr; 169 u64 fence[16]; 170 struct timeval time; 171 struct drm_i915_error_object { 172 int page_count; 173 u32 gtt_offset; 174 u32 *pages[0]; 175 } *ringbuffer, *batchbuffer[I915_NUM_RINGS]; 176 struct drm_i915_error_buffer { 177 u32 size; 178 u32 name; 179 u32 seqno; 180 u32 gtt_offset; 181 u32 read_domains; 182 u32 write_domain; 183 s32 fence_reg:5; 184 s32 pinned:2; 185 u32 tiling:2; 186 u32 dirty:1; 187 u32 purgeable:1; 188 u32 ring:4; 189 u32 agp_type:1; 190 } *active_bo, *pinned_bo; 191 u32 active_bo_count, pinned_bo_count; 192 struct intel_overlay_error_state *overlay; 193 struct intel_display_error_state *display; 194 }; 195 196 struct drm_i915_display_funcs { 197 void (*dpms)(struct drm_crtc *crtc, int mode); 198 bool (*fbc_enabled)(struct drm_device *dev); 199 void (*enable_fbc)(struct drm_crtc *crtc, unsigned long interval); 200 void (*disable_fbc)(struct drm_device *dev); 201 int (*get_display_clock_speed)(struct drm_device *dev); 202 int (*get_fifo_size)(struct drm_device *dev, int plane); 203 void (*update_wm)(struct drm_device *dev, int planea_clock, 204 int planeb_clock, int sr_hdisplay, int sr_htotal, 205 int pixel_size); 206 /* clock updates for mode set */ 207 /* cursor updates */ 208 /* render clock increase/decrease */ 209 /* display clock increase/decrease */ 210 /* pll clock increase/decrease */ 211 /* clock gating init */ 212 }; 213 214 struct intel_device_info { 215 u8 gen; 216 u8 is_mobile : 1; 217 u8 is_i85x : 1; 218 u8 is_i915g : 1; 219 u8 is_i945gm : 1; 220 u8 is_g33 : 1; 221 u8 need_gfx_hws : 1; 222 u8 is_g4x : 1; 223 u8 is_pineview : 1; 224 u8 is_broadwater : 1; 225 u8 is_crestline : 1; 226 u8 has_fbc : 1; 227 u8 has_pipe_cxsr : 1; 228 u8 has_hotplug : 1; 229 u8 cursor_needs_physical : 1; 230 u8 has_overlay : 1; 231 u8 overlay_needs_physical : 1; 232 u8 supports_tv : 1; 233 u8 has_bsd_ring : 1; 234 u8 has_blt_ring : 1; 235 }; 236 237 enum no_fbc_reason { 238 FBC_NO_OUTPUT, /* no outputs enabled to compress */ 239 FBC_STOLEN_TOO_SMALL, /* not enough space to hold compressed buffers */ 240 FBC_UNSUPPORTED_MODE, /* interlace or doublescanned mode */ 241 FBC_MODE_TOO_LARGE, /* mode too large for compression */ 242 FBC_BAD_PLANE, /* fbc not supported on plane */ 243 FBC_NOT_TILED, /* buffer not tiled */ 244 FBC_MULTIPLE_PIPES, /* more than one pipe active */ 245 }; 246 247 enum intel_pch { 248 PCH_IBX, /* Ibexpeak PCH */ 249 PCH_CPT, /* Cougarpoint PCH */ 250 }; 251 252 #define QUIRK_PIPEA_FORCE (1<<0) 253 254 struct intel_fbdev; 255 256 typedef struct drm_i915_private { 257 struct drm_device *dev; 258 259 const struct intel_device_info *info; 260 261 int has_gem; 262 int relative_constants_mode; 263 264 void __iomem *regs; 265 266 struct intel_gmbus { 267 struct i2c_adapter adapter; 268 struct i2c_adapter *force_bit; 269 u32 reg0; 270 } *gmbus; 271 272 struct pci_dev *bridge_dev; 273 struct intel_ring_buffer ring[I915_NUM_RINGS]; 274 uint32_t next_seqno; 275 276 drm_dma_handle_t *status_page_dmah; 277 dma_addr_t dma_status_page; 278 uint32_t counter; 279 drm_local_map_t hws_map; 280 struct drm_i915_gem_object *pwrctx; 281 struct drm_i915_gem_object *renderctx; 282 283 struct resource mch_res; 284 285 unsigned int cpp; 286 int back_offset; 287 int front_offset; 288 int current_page; 289 int page_flipping; 290 291 atomic_t irq_received; 292 u32 trace_irq_seqno; 293 294 /* protects the irq masks */ 295 spinlock_t irq_lock; 296 /** Cached value of IMR to avoid reads in updating the bitfield */ 297 u32 pipestat[2]; 298 u32 irq_mask; 299 u32 gt_irq_mask; 300 u32 pch_irq_mask; 301 302 u32 hotplug_supported_mask; 303 struct work_struct hotplug_work; 304 305 int tex_lru_log_granularity; 306 int allow_batchbuffer; 307 struct mem_block *agp_heap; 308 unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds; 309 int vblank_pipe; 310 int num_pipe; 311 312 /* For hangcheck timer */ 313 #define DRM_I915_HANGCHECK_PERIOD 1500 /* in ms */ 314 struct timer_list hangcheck_timer; 315 int hangcheck_count; 316 uint32_t last_acthd; 317 uint32_t last_instdone; 318 uint32_t last_instdone1; 319 320 unsigned long cfb_size; 321 unsigned long cfb_pitch; 322 unsigned long cfb_offset; 323 int cfb_fence; 324 int cfb_plane; 325 int cfb_y; 326 327 int irq_enabled; 328 329 struct intel_opregion opregion; 330 331 /* overlay */ 332 struct intel_overlay *overlay; 333 334 /* LVDS info */ 335 int backlight_level; /* restore backlight to this value */ 336 bool backlight_enabled; 337 struct drm_display_mode *panel_fixed_mode; 338 struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */ 339 struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */ 340 341 /* Feature bits from the VBIOS */ 342 unsigned int int_tv_support:1; 343 unsigned int lvds_dither:1; 344 unsigned int lvds_vbt:1; 345 unsigned int int_crt_support:1; 346 unsigned int lvds_use_ssc:1; 347 int lvds_ssc_freq; 348 struct { 349 int rate; 350 int lanes; 351 int preemphasis; 352 int vswing; 353 354 bool initialized; 355 bool support; 356 int bpp; 357 struct edp_power_seq pps; 358 } edp; 359 bool no_aux_handshake; 360 361 struct notifier_block lid_notifier; 362 363 int crt_ddc_pin; 364 struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */ 365 int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */ 366 int num_fence_regs; /* 8 on pre-965, 16 otherwise */ 367 368 unsigned int fsb_freq, mem_freq, is_ddr3; 369 370 spinlock_t error_lock; 371 struct drm_i915_error_state *first_error; 372 struct work_struct error_work; 373 struct completion error_completion; 374 struct workqueue_struct *wq; 375 376 /* Display functions */ 377 struct drm_i915_display_funcs display; 378 379 /* PCH chipset type */ 380 enum intel_pch pch_type; 381 382 unsigned long quirks; 383 384 /* Register state */ 385 bool modeset_on_lid; 386 u8 saveLBB; 387 u32 saveDSPACNTR; 388 u32 saveDSPBCNTR; 389 u32 saveDSPARB; 390 u32 saveHWS; 391 u32 savePIPEACONF; 392 u32 savePIPEBCONF; 393 u32 savePIPEASRC; 394 u32 savePIPEBSRC; 395 u32 saveFPA0; 396 u32 saveFPA1; 397 u32 saveDPLL_A; 398 u32 saveDPLL_A_MD; 399 u32 saveHTOTAL_A; 400 u32 saveHBLANK_A; 401 u32 saveHSYNC_A; 402 u32 saveVTOTAL_A; 403 u32 saveVBLANK_A; 404 u32 saveVSYNC_A; 405 u32 saveBCLRPAT_A; 406 u32 saveTRANSACONF; 407 u32 saveTRANS_HTOTAL_A; 408 u32 saveTRANS_HBLANK_A; 409 u32 saveTRANS_HSYNC_A; 410 u32 saveTRANS_VTOTAL_A; 411 u32 saveTRANS_VBLANK_A; 412 u32 saveTRANS_VSYNC_A; 413 u32 savePIPEASTAT; 414 u32 saveDSPASTRIDE; 415 u32 saveDSPASIZE; 416 u32 saveDSPAPOS; 417 u32 saveDSPAADDR; 418 u32 saveDSPASURF; 419 u32 saveDSPATILEOFF; 420 u32 savePFIT_PGM_RATIOS; 421 u32 saveBLC_HIST_CTL; 422 u32 saveBLC_PWM_CTL; 423 u32 saveBLC_PWM_CTL2; 424 u32 saveBLC_CPU_PWM_CTL; 425 u32 saveBLC_CPU_PWM_CTL2; 426 u32 saveFPB0; 427 u32 saveFPB1; 428 u32 saveDPLL_B; 429 u32 saveDPLL_B_MD; 430 u32 saveHTOTAL_B; 431 u32 saveHBLANK_B; 432 u32 saveHSYNC_B; 433 u32 saveVTOTAL_B; 434 u32 saveVBLANK_B; 435 u32 saveVSYNC_B; 436 u32 saveBCLRPAT_B; 437 u32 saveTRANSBCONF; 438 u32 saveTRANS_HTOTAL_B; 439 u32 saveTRANS_HBLANK_B; 440 u32 saveTRANS_HSYNC_B; 441 u32 saveTRANS_VTOTAL_B; 442 u32 saveTRANS_VBLANK_B; 443 u32 saveTRANS_VSYNC_B; 444 u32 savePIPEBSTAT; 445 u32 saveDSPBSTRIDE; 446 u32 saveDSPBSIZE; 447 u32 saveDSPBPOS; 448 u32 saveDSPBADDR; 449 u32 saveDSPBSURF; 450 u32 saveDSPBTILEOFF; 451 u32 saveVGA0; 452 u32 saveVGA1; 453 u32 saveVGA_PD; 454 u32 saveVGACNTRL; 455 u32 saveADPA; 456 u32 saveLVDS; 457 u32 savePP_ON_DELAYS; 458 u32 savePP_OFF_DELAYS; 459 u32 saveDVOA; 460 u32 saveDVOB; 461 u32 saveDVOC; 462 u32 savePP_ON; 463 u32 savePP_OFF; 464 u32 savePP_CONTROL; 465 u32 savePP_DIVISOR; 466 u32 savePFIT_CONTROL; 467 u32 save_palette_a[256]; 468 u32 save_palette_b[256]; 469 u32 saveDPFC_CB_BASE; 470 u32 saveFBC_CFB_BASE; 471 u32 saveFBC_LL_BASE; 472 u32 saveFBC_CONTROL; 473 u32 saveFBC_CONTROL2; 474 u32 saveIER; 475 u32 saveIIR; 476 u32 saveIMR; 477 u32 saveDEIER; 478 u32 saveDEIMR; 479 u32 saveGTIER; 480 u32 saveGTIMR; 481 u32 saveFDI_RXA_IMR; 482 u32 saveFDI_RXB_IMR; 483 u32 saveCACHE_MODE_0; 484 u32 saveMI_ARB_STATE; 485 u32 saveSWF0[16]; 486 u32 saveSWF1[16]; 487 u32 saveSWF2[3]; 488 u8 saveMSR; 489 u8 saveSR[8]; 490 u8 saveGR[25]; 491 u8 saveAR_INDEX; 492 u8 saveAR[21]; 493 u8 saveDACMASK; 494 u8 saveCR[37]; 495 uint64_t saveFENCE[16]; 496 u32 saveCURACNTR; 497 u32 saveCURAPOS; 498 u32 saveCURABASE; 499 u32 saveCURBCNTR; 500 u32 saveCURBPOS; 501 u32 saveCURBBASE; 502 u32 saveCURSIZE; 503 u32 saveDP_B; 504 u32 saveDP_C; 505 u32 saveDP_D; 506 u32 savePIPEA_GMCH_DATA_M; 507 u32 savePIPEB_GMCH_DATA_M; 508 u32 savePIPEA_GMCH_DATA_N; 509 u32 savePIPEB_GMCH_DATA_N; 510 u32 savePIPEA_DP_LINK_M; 511 u32 savePIPEB_DP_LINK_M; 512 u32 savePIPEA_DP_LINK_N; 513 u32 savePIPEB_DP_LINK_N; 514 u32 saveFDI_RXA_CTL; 515 u32 saveFDI_TXA_CTL; 516 u32 saveFDI_RXB_CTL; 517 u32 saveFDI_TXB_CTL; 518 u32 savePFA_CTL_1; 519 u32 savePFB_CTL_1; 520 u32 savePFA_WIN_SZ; 521 u32 savePFB_WIN_SZ; 522 u32 savePFA_WIN_POS; 523 u32 savePFB_WIN_POS; 524 u32 savePCH_DREF_CONTROL; 525 u32 saveDISP_ARB_CTL; 526 u32 savePIPEA_DATA_M1; 527 u32 savePIPEA_DATA_N1; 528 u32 savePIPEA_LINK_M1; 529 u32 savePIPEA_LINK_N1; 530 u32 savePIPEB_DATA_M1; 531 u32 savePIPEB_DATA_N1; 532 u32 savePIPEB_LINK_M1; 533 u32 savePIPEB_LINK_N1; 534 u32 saveMCHBAR_RENDER_STANDBY; 535 536 struct { 537 /** Bridge to intel-gtt-ko */ 538 const struct intel_gtt *gtt; 539 /** Memory allocator for GTT stolen memory */ 540 struct drm_mm stolen; 541 /** Memory allocator for GTT */ 542 struct drm_mm gtt_space; 543 /** List of all objects in gtt_space. Used to restore gtt 544 * mappings on resume */ 545 struct list_head gtt_list; 546 547 /** Usable portion of the GTT for GEM */ 548 unsigned long gtt_start; 549 unsigned long gtt_mappable_end; 550 unsigned long gtt_end; 551 552 struct io_mapping *gtt_mapping; 553 int gtt_mtrr; 554 555 struct shrinker inactive_shrinker; 556 557 /** 558 * List of objects currently involved in rendering. 559 * 560 * Includes buffers having the contents of their GPU caches 561 * flushed, not necessarily primitives. last_rendering_seqno 562 * represents when the rendering involved will be completed. 563 * 564 * A reference is held on the buffer while on this list. 565 */ 566 struct list_head active_list; 567 568 /** 569 * List of objects which are not in the ringbuffer but which 570 * still have a write_domain which needs to be flushed before 571 * unbinding. 572 * 573 * last_rendering_seqno is 0 while an object is in this list. 574 * 575 * A reference is held on the buffer while on this list. 576 */ 577 struct list_head flushing_list; 578 579 /** 580 * LRU list of objects which are not in the ringbuffer and 581 * are ready to unbind, but are still in the GTT. 582 * 583 * last_rendering_seqno is 0 while an object is in this list. 584 * 585 * A reference is not held on the buffer while on this list, 586 * as merely being GTT-bound shouldn't prevent its being 587 * freed, and we'll pull it off the list in the free path. 588 */ 589 struct list_head inactive_list; 590 591 /** 592 * LRU list of objects which are not in the ringbuffer but 593 * are still pinned in the GTT. 594 */ 595 struct list_head pinned_list; 596 597 /** LRU list of objects with fence regs on them. */ 598 struct list_head fence_list; 599 600 /** 601 * List of objects currently pending being freed. 602 * 603 * These objects are no longer in use, but due to a signal 604 * we were prevented from freeing them at the appointed time. 605 */ 606 struct list_head deferred_free_list; 607 608 /** 609 * We leave the user IRQ off as much as possible, 610 * but this means that requests will finish and never 611 * be retired once the system goes idle. Set a timer to 612 * fire periodically while the ring is running. When it 613 * fires, go retire requests. 614 */ 615 struct delayed_work retire_work; 616 617 /** 618 * Flag if the X Server, and thus DRM, is not currently in 619 * control of the device. 620 * 621 * This is set between LeaveVT and EnterVT. It needs to be 622 * replaced with a semaphore. It also needs to be 623 * transitioned away from for kernel modesetting. 624 */ 625 int suspended; 626 627 /** 628 * Flag if the hardware appears to be wedged. 629 * 630 * This is set when attempts to idle the device timeout. 631 * It prevents command submission from occuring and makes 632 * every pending request fail 633 */ 634 atomic_t wedged; 635 636 /** Bit 6 swizzling required for X tiling */ 637 uint32_t bit_6_swizzle_x; 638 /** Bit 6 swizzling required for Y tiling */ 639 uint32_t bit_6_swizzle_y; 640 641 /* storage for physical objects */ 642 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT]; 643 644 /* accounting, useful for userland debugging */ 645 size_t gtt_total; 646 size_t mappable_gtt_total; 647 size_t object_memory; 648 u32 object_count; 649 } mm; 650 struct sdvo_device_mapping sdvo_mappings[2]; 651 /* indicate whether the LVDS_BORDER should be enabled or not */ 652 unsigned int lvds_border_bits; 653 /* Panel fitter placement and size for Ironlake+ */ 654 u32 pch_pf_pos, pch_pf_size; 655 656 struct drm_crtc *plane_to_crtc_mapping[2]; 657 struct drm_crtc *pipe_to_crtc_mapping[2]; 658 wait_queue_head_t pending_flip_queue; 659 bool flip_pending_is_done; 660 661 /* Reclocking support */ 662 bool render_reclock_avail; 663 bool lvds_downclock_avail; 664 /* indicates the reduced downclock for LVDS*/ 665 int lvds_downclock; 666 struct work_struct idle_work; 667 struct timer_list idle_timer; 668 bool busy; 669 u16 orig_clock; 670 int child_dev_num; 671 struct child_device_config *child_dev; 672 struct drm_connector *int_lvds_connector; 673 674 bool mchbar_need_disable; 675 676 u8 cur_delay; 677 u8 min_delay; 678 u8 max_delay; 679 u8 fmax; 680 u8 fstart; 681 682 u64 last_count1; 683 unsigned long last_time1; 684 u64 last_count2; 685 struct timespec last_time2; 686 unsigned long gfx_power; 687 int c_m; 688 int r_t; 689 u8 corr; 690 spinlock_t *mchdev_lock; 691 692 enum no_fbc_reason no_fbc_reason; 693 694 struct drm_mm_node *compressed_fb; 695 struct drm_mm_node *compressed_llb; 696 697 unsigned long last_gpu_reset; 698 699 /* list of fbdev register on this device */ 700 struct intel_fbdev *fbdev; 701 } drm_i915_private_t; 702 703 struct drm_i915_gem_object { 704 struct drm_gem_object base; 705 706 /** Current space allocated to this object in the GTT, if any. */ 707 struct drm_mm_node *gtt_space; 708 struct list_head gtt_list; 709 710 /** This object's place on the active/flushing/inactive lists */ 711 struct list_head ring_list; 712 struct list_head mm_list; 713 /** This object's place on GPU write list */ 714 struct list_head gpu_write_list; 715 /** This object's place in the batchbuffer or on the eviction list */ 716 struct list_head exec_list; 717 718 /** 719 * This is set if the object is on the active or flushing lists 720 * (has pending rendering), and is not set if it's on inactive (ready 721 * to be unbound). 722 */ 723 unsigned int active : 1; 724 725 /** 726 * This is set if the object has been written to since last bound 727 * to the GTT 728 */ 729 unsigned int dirty : 1; 730 731 /** 732 * This is set if the object has been written to since the last 733 * GPU flush. 734 */ 735 unsigned int pending_gpu_write : 1; 736 737 /** 738 * Fence register bits (if any) for this object. Will be set 739 * as needed when mapped into the GTT. 740 * Protected by dev->struct_mutex. 741 * 742 * Size: 4 bits for 16 fences + sign (for FENCE_REG_NONE) 743 */ 744 signed int fence_reg : 5; 745 746 /** 747 * Advice: are the backing pages purgeable? 748 */ 749 unsigned int madv : 2; 750 751 /** 752 * Current tiling mode for the object. 753 */ 754 unsigned int tiling_mode : 2; 755 unsigned int tiling_changed : 1; 756 757 /** How many users have pinned this object in GTT space. The following 758 * users can each hold at most one reference: pwrite/pread, pin_ioctl 759 * (via user_pin_count), execbuffer (objects are not allowed multiple 760 * times for the same batchbuffer), and the framebuffer code. When 761 * switching/pageflipping, the framebuffer code has at most two buffers 762 * pinned per crtc. 763 * 764 * In the worst case this is 1 + 1 + 1 + 2*2 = 7. That would fit into 3 765 * bits with absolutely no headroom. So use 4 bits. */ 766 unsigned int pin_count : 4; 767 #define DRM_I915_GEM_OBJECT_MAX_PIN_COUNT 0xf 768 769 /** 770 * Is the object at the current location in the gtt mappable and 771 * fenceable? Used to avoid costly recalculations. 772 */ 773 unsigned int map_and_fenceable : 1; 774 775 /** 776 * Whether the current gtt mapping needs to be mappable (and isn't just 777 * mappable by accident). Track pin and fault separate for a more 778 * accurate mappable working set. 779 */ 780 unsigned int fault_mappable : 1; 781 unsigned int pin_mappable : 1; 782 783 /* 784 * Is the GPU currently using a fence to access this buffer, 785 */ 786 unsigned int pending_fenced_gpu_access:1; 787 unsigned int fenced_gpu_access:1; 788 789 struct page **pages; 790 791 /** 792 * DMAR support 793 */ 794 struct scatterlist *sg_list; 795 int num_sg; 796 797 /** 798 * Used for performing relocations during execbuffer insertion. 799 */ 800 struct hlist_node exec_node; 801 unsigned long exec_handle; 802 struct drm_i915_gem_exec_object2 *exec_entry; 803 804 /** 805 * Current offset of the object in GTT space. 806 * 807 * This is the same as gtt_space->start 808 */ 809 uint32_t gtt_offset; 810 811 /** Breadcrumb of last rendering to the buffer. */ 812 uint32_t last_rendering_seqno; 813 struct intel_ring_buffer *ring; 814 815 /** Breadcrumb of last fenced GPU access to the buffer. */ 816 uint32_t last_fenced_seqno; 817 struct intel_ring_buffer *last_fenced_ring; 818 819 /** Current tiling stride for the object, if it's tiled. */ 820 uint32_t stride; 821 822 /** Record of address bit 17 of each page at last unbind. */ 823 unsigned long *bit_17; 824 825 /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */ 826 uint32_t agp_type; 827 828 /** 829 * If present, while GEM_DOMAIN_CPU is in the read domain this array 830 * flags which individual pages are valid. 831 */ 832 uint8_t *page_cpu_valid; 833 834 /** User space pin count and filp owning the pin */ 835 uint32_t user_pin_count; 836 struct drm_file *pin_filp; 837 838 /** for phy allocated objects */ 839 struct drm_i915_gem_phys_object *phys_obj; 840 841 /** 842 * Number of crtcs where this object is currently the fb, but 843 * will be page flipped away on the next vblank. When it 844 * reaches 0, dev_priv->pending_flip_queue will be woken up. 845 */ 846 atomic_t pending_flip; 847 }; 848 849 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) 850 851 /** 852 * Request queue structure. 853 * 854 * The request queue allows us to note sequence numbers that have been emitted 855 * and may be associated with active buffers to be retired. 856 * 857 * By keeping this list, we can avoid having to do questionable 858 * sequence-number comparisons on buffer last_rendering_seqnos, and associate 859 * an emission time with seqnos for tracking how far ahead of the GPU we are. 860 */ 861 struct drm_i915_gem_request { 862 /** On Which ring this request was generated */ 863 struct intel_ring_buffer *ring; 864 865 /** GEM sequence number associated with this request. */ 866 uint32_t seqno; 867 868 /** Time at which this request was emitted, in jiffies. */ 869 unsigned long emitted_jiffies; 870 871 /** global list entry for this request */ 872 struct list_head list; 873 874 struct drm_i915_file_private *file_priv; 875 /** file_priv list entry for this request */ 876 struct list_head client_list; 877 }; 878 879 struct drm_i915_file_private { 880 struct { 881 struct spinlock lock; 882 struct list_head request_list; 883 } mm; 884 }; 885 886 enum intel_chip_family { 887 CHIP_I8XX = 0x01, 888 CHIP_I9XX = 0x02, 889 CHIP_I915 = 0x04, 890 CHIP_I965 = 0x08, 891 }; 892 893 #define INTEL_INFO(dev) (((struct drm_i915_private *) (dev)->dev_private)->info) 894 895 #define IS_I830(dev) ((dev)->pci_device == 0x3577) 896 #define IS_845G(dev) ((dev)->pci_device == 0x2562) 897 #define IS_I85X(dev) (INTEL_INFO(dev)->is_i85x) 898 #define IS_I865G(dev) ((dev)->pci_device == 0x2572) 899 #define IS_I915G(dev) (INTEL_INFO(dev)->is_i915g) 900 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592) 901 #define IS_I945G(dev) ((dev)->pci_device == 0x2772) 902 #define IS_I945GM(dev) (INTEL_INFO(dev)->is_i945gm) 903 #define IS_BROADWATER(dev) (INTEL_INFO(dev)->is_broadwater) 904 #define IS_CRESTLINE(dev) (INTEL_INFO(dev)->is_crestline) 905 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42) 906 #define IS_G4X(dev) (INTEL_INFO(dev)->is_g4x) 907 #define IS_PINEVIEW_G(dev) ((dev)->pci_device == 0xa001) 908 #define IS_PINEVIEW_M(dev) ((dev)->pci_device == 0xa011) 909 #define IS_PINEVIEW(dev) (INTEL_INFO(dev)->is_pineview) 910 #define IS_G33(dev) (INTEL_INFO(dev)->is_g33) 911 #define IS_IRONLAKE_D(dev) ((dev)->pci_device == 0x0042) 912 #define IS_IRONLAKE_M(dev) ((dev)->pci_device == 0x0046) 913 #define IS_MOBILE(dev) (INTEL_INFO(dev)->is_mobile) 914 915 #define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2) 916 #define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3) 917 #define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4) 918 #define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5) 919 #define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6) 920 921 #define HAS_BSD(dev) (INTEL_INFO(dev)->has_bsd_ring) 922 #define HAS_BLT(dev) (INTEL_INFO(dev)->has_blt_ring) 923 #define I915_NEED_GFX_HWS(dev) (INTEL_INFO(dev)->need_gfx_hws) 924 925 #define HAS_OVERLAY(dev) (INTEL_INFO(dev)->has_overlay) 926 #define OVERLAY_NEEDS_PHYSICAL(dev) (INTEL_INFO(dev)->overlay_needs_physical) 927 928 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte 929 * rows, which changed the alignment requirements and fence programming. 930 */ 931 #define HAS_128_BYTE_Y_TILING(dev) (!IS_GEN2(dev) && !(IS_I915G(dev) || \ 932 IS_I915GM(dev))) 933 #define SUPPORTS_DIGITAL_OUTPUTS(dev) (!IS_GEN2(dev) && !IS_PINEVIEW(dev)) 934 #define SUPPORTS_INTEGRATED_HDMI(dev) (IS_G4X(dev) || IS_GEN5(dev)) 935 #define SUPPORTS_INTEGRATED_DP(dev) (IS_G4X(dev) || IS_GEN5(dev)) 936 #define SUPPORTS_EDP(dev) (IS_IRONLAKE_M(dev)) 937 #define SUPPORTS_TV(dev) (INTEL_INFO(dev)->supports_tv) 938 #define I915_HAS_HOTPLUG(dev) (INTEL_INFO(dev)->has_hotplug) 939 /* dsparb controlled by hw only */ 940 #define DSPARB_HWCONTROL(dev) (IS_G4X(dev) || IS_IRONLAKE(dev)) 941 942 #define HAS_FW_BLC(dev) (INTEL_INFO(dev)->gen > 2) 943 #define HAS_PIPE_CXSR(dev) (INTEL_INFO(dev)->has_pipe_cxsr) 944 #define I915_HAS_FBC(dev) (INTEL_INFO(dev)->has_fbc) 945 946 #define HAS_PCH_SPLIT(dev) (IS_GEN5(dev) || IS_GEN6(dev)) 947 #define HAS_PIPE_CONTROL(dev) (IS_GEN5(dev) || IS_GEN6(dev)) 948 949 #define INTEL_PCH_TYPE(dev) (((struct drm_i915_private *)(dev)->dev_private)->pch_type) 950 #define HAS_PCH_CPT(dev) (INTEL_PCH_TYPE(dev) == PCH_CPT) 951 #define HAS_PCH_IBX(dev) (INTEL_PCH_TYPE(dev) == PCH_IBX) 952 953 #include "i915_trace.h" 954 955 extern struct drm_ioctl_desc i915_ioctls[]; 956 extern int i915_max_ioctl; 957 extern unsigned int i915_fbpercrtc; 958 extern unsigned int i915_powersave; 959 extern unsigned int i915_lvds_downclock; 960 extern unsigned int i915_panel_use_ssc; 961 extern unsigned int i915_enable_rc6; 962 963 extern int i915_suspend(struct drm_device *dev, pm_message_t state); 964 extern int i915_resume(struct drm_device *dev); 965 extern void i915_save_display(struct drm_device *dev); 966 extern void i915_restore_display(struct drm_device *dev); 967 extern int i915_master_create(struct drm_device *dev, struct drm_master *master); 968 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master); 969 970 /* i915_dma.c */ 971 extern void i915_kernel_lost_context(struct drm_device * dev); 972 extern int i915_driver_load(struct drm_device *, unsigned long flags); 973 extern int i915_driver_unload(struct drm_device *); 974 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv); 975 extern void i915_driver_lastclose(struct drm_device * dev); 976 extern void i915_driver_preclose(struct drm_device *dev, 977 struct drm_file *file_priv); 978 extern void i915_driver_postclose(struct drm_device *dev, 979 struct drm_file *file_priv); 980 extern int i915_driver_device_is_agp(struct drm_device * dev); 981 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd, 982 unsigned long arg); 983 extern int i915_emit_box(struct drm_device *dev, 984 struct drm_clip_rect *box, 985 int DR1, int DR4); 986 extern int i915_reset(struct drm_device *dev, u8 flags); 987 extern unsigned long i915_chipset_val(struct drm_i915_private *dev_priv); 988 extern unsigned long i915_mch_val(struct drm_i915_private *dev_priv); 989 extern unsigned long i915_gfx_val(struct drm_i915_private *dev_priv); 990 extern void i915_update_gfx_val(struct drm_i915_private *dev_priv); 991 992 993 /* i915_irq.c */ 994 void i915_hangcheck_elapsed(unsigned long data); 995 void i915_handle_error(struct drm_device *dev, bool wedged); 996 extern int i915_irq_emit(struct drm_device *dev, void *data, 997 struct drm_file *file_priv); 998 extern int i915_irq_wait(struct drm_device *dev, void *data, 999 struct drm_file *file_priv); 1000 void i915_trace_irq_get(struct drm_device *dev, u32 seqno); 1001 extern void i915_enable_interrupt (struct drm_device *dev); 1002 1003 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS); 1004 extern void i915_driver_irq_preinstall(struct drm_device * dev); 1005 extern int i915_driver_irq_postinstall(struct drm_device *dev); 1006 extern void i915_driver_irq_uninstall(struct drm_device * dev); 1007 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data, 1008 struct drm_file *file_priv); 1009 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data, 1010 struct drm_file *file_priv); 1011 extern int i915_enable_vblank(struct drm_device *dev, int crtc); 1012 extern void i915_disable_vblank(struct drm_device *dev, int crtc); 1013 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc); 1014 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc); 1015 extern int i915_vblank_swap(struct drm_device *dev, void *data, 1016 struct drm_file *file_priv); 1017 1018 void 1019 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask); 1020 1021 void 1022 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask); 1023 1024 void intel_enable_asle (struct drm_device *dev); 1025 int i915_get_vblank_timestamp(struct drm_device *dev, int crtc, 1026 int *max_error, 1027 struct timeval *vblank_time, 1028 unsigned flags); 1029 1030 int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe, 1031 int *vpos, int *hpos); 1032 1033 #ifdef CONFIG_DEBUG_FS 1034 extern void i915_destroy_error_state(struct drm_device *dev); 1035 #else 1036 #define i915_destroy_error_state(x) 1037 #endif 1038 1039 1040 /* i915_mem.c */ 1041 extern int i915_mem_alloc(struct drm_device *dev, void *data, 1042 struct drm_file *file_priv); 1043 extern int i915_mem_free(struct drm_device *dev, void *data, 1044 struct drm_file *file_priv); 1045 extern int i915_mem_init_heap(struct drm_device *dev, void *data, 1046 struct drm_file *file_priv); 1047 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data, 1048 struct drm_file *file_priv); 1049 extern void i915_mem_takedown(struct mem_block **heap); 1050 extern void i915_mem_release(struct drm_device * dev, 1051 struct drm_file *file_priv, struct mem_block *heap); 1052 /* i915_gem.c */ 1053 int i915_gem_check_is_wedged(struct drm_device *dev); 1054 int i915_gem_init_ioctl(struct drm_device *dev, void *data, 1055 struct drm_file *file_priv); 1056 int i915_gem_create_ioctl(struct drm_device *dev, void *data, 1057 struct drm_file *file_priv); 1058 int i915_gem_pread_ioctl(struct drm_device *dev, void *data, 1059 struct drm_file *file_priv); 1060 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, 1061 struct drm_file *file_priv); 1062 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data, 1063 struct drm_file *file_priv); 1064 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data, 1065 struct drm_file *file_priv); 1066 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data, 1067 struct drm_file *file_priv); 1068 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data, 1069 struct drm_file *file_priv); 1070 int i915_gem_execbuffer(struct drm_device *dev, void *data, 1071 struct drm_file *file_priv); 1072 int i915_gem_execbuffer2(struct drm_device *dev, void *data, 1073 struct drm_file *file_priv); 1074 int i915_gem_pin_ioctl(struct drm_device *dev, void *data, 1075 struct drm_file *file_priv); 1076 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data, 1077 struct drm_file *file_priv); 1078 int i915_gem_busy_ioctl(struct drm_device *dev, void *data, 1079 struct drm_file *file_priv); 1080 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data, 1081 struct drm_file *file_priv); 1082 int i915_gem_madvise_ioctl(struct drm_device *dev, void *data, 1083 struct drm_file *file_priv); 1084 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data, 1085 struct drm_file *file_priv); 1086 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data, 1087 struct drm_file *file_priv); 1088 int i915_gem_set_tiling(struct drm_device *dev, void *data, 1089 struct drm_file *file_priv); 1090 int i915_gem_get_tiling(struct drm_device *dev, void *data, 1091 struct drm_file *file_priv); 1092 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data, 1093 struct drm_file *file_priv); 1094 void i915_gem_load(struct drm_device *dev); 1095 int i915_gem_init_object(struct drm_gem_object *obj); 1096 int __must_check i915_gem_flush_ring(struct drm_device *dev, 1097 struct intel_ring_buffer *ring, 1098 uint32_t invalidate_domains, 1099 uint32_t flush_domains); 1100 struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev, 1101 size_t size); 1102 void i915_gem_free_object(struct drm_gem_object *obj); 1103 int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj, 1104 uint32_t alignment, 1105 bool map_and_fenceable); 1106 void i915_gem_object_unpin(struct drm_i915_gem_object *obj); 1107 int __must_check i915_gem_object_unbind(struct drm_i915_gem_object *obj); 1108 void i915_gem_release_mmap(struct drm_i915_gem_object *obj); 1109 void i915_gem_lastclose(struct drm_device *dev); 1110 1111 int __must_check i915_mutex_lock_interruptible(struct drm_device *dev); 1112 int __must_check i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj, 1113 bool interruptible); 1114 void i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, 1115 struct intel_ring_buffer *ring, 1116 u32 seqno); 1117 1118 /** 1119 * Returns true if seq1 is later than seq2. 1120 */ 1121 static inline bool 1122 i915_seqno_passed(uint32_t seq1, uint32_t seq2) 1123 { 1124 return (int32_t)(seq1 - seq2) >= 0; 1125 } 1126 1127 static inline u32 1128 i915_gem_next_request_seqno(struct drm_device *dev, 1129 struct intel_ring_buffer *ring) 1130 { 1131 drm_i915_private_t *dev_priv = dev->dev_private; 1132 return ring->outstanding_lazy_request = dev_priv->next_seqno; 1133 } 1134 1135 int __must_check i915_gem_object_get_fence(struct drm_i915_gem_object *obj, 1136 struct intel_ring_buffer *pipelined, 1137 bool interruptible); 1138 int __must_check i915_gem_object_put_fence(struct drm_i915_gem_object *obj); 1139 1140 void i915_gem_retire_requests(struct drm_device *dev); 1141 void i915_gem_reset(struct drm_device *dev); 1142 void i915_gem_clflush_object(struct drm_i915_gem_object *obj); 1143 int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj, 1144 uint32_t read_domains, 1145 uint32_t write_domain); 1146 int __must_check i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj, 1147 bool interruptible); 1148 int __must_check i915_gem_init_ringbuffer(struct drm_device *dev); 1149 void i915_gem_cleanup_ringbuffer(struct drm_device *dev); 1150 void i915_gem_do_init(struct drm_device *dev, 1151 unsigned long start, 1152 unsigned long mappable_end, 1153 unsigned long end); 1154 int __must_check i915_gpu_idle(struct drm_device *dev); 1155 int __must_check i915_gem_idle(struct drm_device *dev); 1156 int __must_check i915_add_request(struct drm_device *dev, 1157 struct drm_file *file_priv, 1158 struct drm_i915_gem_request *request, 1159 struct intel_ring_buffer *ring); 1160 int __must_check i915_do_wait_request(struct drm_device *dev, 1161 uint32_t seqno, 1162 bool interruptible, 1163 struct intel_ring_buffer *ring); 1164 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); 1165 int __must_check 1166 i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, 1167 bool write); 1168 int __must_check 1169 i915_gem_object_set_to_display_plane(struct drm_i915_gem_object *obj, 1170 struct intel_ring_buffer *pipelined); 1171 int i915_gem_attach_phys_object(struct drm_device *dev, 1172 struct drm_i915_gem_object *obj, 1173 int id, 1174 int align); 1175 void i915_gem_detach_phys_object(struct drm_device *dev, 1176 struct drm_i915_gem_object *obj); 1177 void i915_gem_free_all_phys_object(struct drm_device *dev); 1178 void i915_gem_release(struct drm_device *dev, struct drm_file *file); 1179 1180 /* i915_gem_gtt.c */ 1181 void i915_gem_restore_gtt_mappings(struct drm_device *dev); 1182 int __must_check i915_gem_gtt_bind_object(struct drm_i915_gem_object *obj); 1183 void i915_gem_gtt_unbind_object(struct drm_i915_gem_object *obj); 1184 1185 /* i915_gem_evict.c */ 1186 int __must_check i915_gem_evict_something(struct drm_device *dev, int min_size, 1187 unsigned alignment, bool mappable); 1188 int __must_check i915_gem_evict_everything(struct drm_device *dev, 1189 bool purgeable_only); 1190 int __must_check i915_gem_evict_inactive(struct drm_device *dev, 1191 bool purgeable_only); 1192 1193 /* i915_gem_tiling.c */ 1194 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev); 1195 void i915_gem_object_do_bit_17_swizzle(struct drm_i915_gem_object *obj); 1196 void i915_gem_object_save_bit_17_swizzle(struct drm_i915_gem_object *obj); 1197 1198 /* i915_gem_debug.c */ 1199 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len, 1200 const char *where, uint32_t mark); 1201 #if WATCH_LISTS 1202 int i915_verify_lists(struct drm_device *dev); 1203 #else 1204 #define i915_verify_lists(dev) 0 1205 #endif 1206 void i915_gem_object_check_coherency(struct drm_i915_gem_object *obj, 1207 int handle); 1208 void i915_gem_dump_object(struct drm_i915_gem_object *obj, int len, 1209 const char *where, uint32_t mark); 1210 1211 /* i915_debugfs.c */ 1212 int i915_debugfs_init(struct drm_minor *minor); 1213 void i915_debugfs_cleanup(struct drm_minor *minor); 1214 1215 /* i915_suspend.c */ 1216 extern int i915_save_state(struct drm_device *dev); 1217 extern int i915_restore_state(struct drm_device *dev); 1218 1219 /* i915_suspend.c */ 1220 extern int i915_save_state(struct drm_device *dev); 1221 extern int i915_restore_state(struct drm_device *dev); 1222 1223 /* intel_i2c.c */ 1224 extern int intel_setup_gmbus(struct drm_device *dev); 1225 extern void intel_teardown_gmbus(struct drm_device *dev); 1226 extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); 1227 extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); 1228 extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) 1229 { 1230 return container_of(adapter, struct intel_gmbus, adapter)->force_bit; 1231 } 1232 extern void intel_i2c_reset(struct drm_device *dev); 1233 1234 /* intel_opregion.c */ 1235 extern int intel_opregion_setup(struct drm_device *dev); 1236 #ifdef CONFIG_ACPI 1237 extern void intel_opregion_init(struct drm_device *dev); 1238 extern void intel_opregion_fini(struct drm_device *dev); 1239 extern void intel_opregion_asle_intr(struct drm_device *dev); 1240 extern void intel_opregion_gse_intr(struct drm_device *dev); 1241 extern void intel_opregion_enable_asle(struct drm_device *dev); 1242 #else 1243 static inline void intel_opregion_init(struct drm_device *dev) { return; } 1244 static inline void intel_opregion_fini(struct drm_device *dev) { return; } 1245 static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } 1246 static inline void intel_opregion_gse_intr(struct drm_device *dev) { return; } 1247 static inline void intel_opregion_enable_asle(struct drm_device *dev) { return; } 1248 #endif 1249 1250 /* intel_acpi.c */ 1251 #ifdef CONFIG_ACPI 1252 extern void intel_register_dsm_handler(void); 1253 extern void intel_unregister_dsm_handler(void); 1254 #else 1255 static inline void intel_register_dsm_handler(void) { return; } 1256 static inline void intel_unregister_dsm_handler(void) { return; } 1257 #endif /* CONFIG_ACPI */ 1258 1259 /* modesetting */ 1260 extern void intel_modeset_init(struct drm_device *dev); 1261 extern void intel_modeset_cleanup(struct drm_device *dev); 1262 extern int intel_modeset_vga_set_state(struct drm_device *dev, bool state); 1263 extern void i8xx_disable_fbc(struct drm_device *dev); 1264 extern void g4x_disable_fbc(struct drm_device *dev); 1265 extern void ironlake_disable_fbc(struct drm_device *dev); 1266 extern void intel_disable_fbc(struct drm_device *dev); 1267 extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval); 1268 extern bool intel_fbc_enabled(struct drm_device *dev); 1269 extern bool ironlake_set_drps(struct drm_device *dev, u8 val); 1270 extern void ironlake_enable_rc6(struct drm_device *dev); 1271 extern void gen6_set_rps(struct drm_device *dev, u8 val); 1272 extern void intel_detect_pch (struct drm_device *dev); 1273 extern int intel_trans_dp_port_sel (struct drm_crtc *crtc); 1274 1275 /* overlay */ 1276 #ifdef CONFIG_DEBUG_FS 1277 extern struct intel_overlay_error_state *intel_overlay_capture_error_state(struct drm_device *dev); 1278 extern void intel_overlay_print_error_state(struct seq_file *m, struct intel_overlay_error_state *error); 1279 1280 extern struct intel_display_error_state *intel_display_capture_error_state(struct drm_device *dev); 1281 extern void intel_display_print_error_state(struct seq_file *m, 1282 struct drm_device *dev, 1283 struct intel_display_error_state *error); 1284 #endif 1285 1286 #define LP_RING(d) (&((struct drm_i915_private *)(d))->ring[RCS]) 1287 1288 #define BEGIN_LP_RING(n) \ 1289 intel_ring_begin(LP_RING(dev_priv), (n)) 1290 1291 #define OUT_RING(x) \ 1292 intel_ring_emit(LP_RING(dev_priv), x) 1293 1294 #define ADVANCE_LP_RING() \ 1295 intel_ring_advance(LP_RING(dev_priv)) 1296 1297 /** 1298 * Lock test for when it's just for synchronization of ring access. 1299 * 1300 * In that case, we don't need to do it when GEM is initialized as nobody else 1301 * has access to the ring. 1302 */ 1303 #define RING_LOCK_TEST_WITH_RETURN(dev, file) do { \ 1304 if (LP_RING(dev->dev_private)->obj == NULL) \ 1305 LOCK_TEST_WITH_RETURN(dev, file); \ 1306 } while (0) 1307 1308 1309 #define __i915_read(x, y) \ 1310 static inline u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \ 1311 u##x val = read##y(dev_priv->regs + reg); \ 1312 trace_i915_reg_rw('R', reg, val, sizeof(val)); \ 1313 return val; \ 1314 } 1315 __i915_read(8, b) 1316 __i915_read(16, w) 1317 __i915_read(32, l) 1318 __i915_read(64, q) 1319 #undef __i915_read 1320 1321 #define __i915_write(x, y) \ 1322 static inline void i915_write##x(struct drm_i915_private *dev_priv, u32 reg, u##x val) { \ 1323 trace_i915_reg_rw('W', reg, val, sizeof(val)); \ 1324 write##y(val, dev_priv->regs + reg); \ 1325 } 1326 __i915_write(8, b) 1327 __i915_write(16, w) 1328 __i915_write(32, l) 1329 __i915_write(64, q) 1330 #undef __i915_write 1331 1332 #define I915_READ8(reg) i915_read8(dev_priv, (reg)) 1333 #define I915_WRITE8(reg, val) i915_write8(dev_priv, (reg), (val)) 1334 1335 #define I915_READ16(reg) i915_read16(dev_priv, (reg)) 1336 #define I915_WRITE16(reg, val) i915_write16(dev_priv, (reg), (val)) 1337 #define I915_READ16_NOTRACE(reg) readw(dev_priv->regs + (reg)) 1338 #define I915_WRITE16_NOTRACE(reg, val) writew(val, dev_priv->regs + (reg)) 1339 1340 #define I915_READ(reg) i915_read32(dev_priv, (reg)) 1341 #define I915_WRITE(reg, val) i915_write32(dev_priv, (reg), (val)) 1342 #define I915_READ_NOTRACE(reg) readl(dev_priv->regs + (reg)) 1343 #define I915_WRITE_NOTRACE(reg, val) writel(val, dev_priv->regs + (reg)) 1344 1345 #define I915_WRITE64(reg, val) i915_write64(dev_priv, (reg), (val)) 1346 #define I915_READ64(reg) i915_read64(dev_priv, (reg)) 1347 1348 #define POSTING_READ(reg) (void)I915_READ_NOTRACE(reg) 1349 #define POSTING_READ16(reg) (void)I915_READ16_NOTRACE(reg) 1350 1351 1352 /* On SNB platform, before reading ring registers forcewake bit 1353 * must be set to prevent GT core from power down and stale values being 1354 * returned. 1355 */ 1356 void __gen6_force_wake_get(struct drm_i915_private *dev_priv); 1357 void __gen6_force_wake_put (struct drm_i915_private *dev_priv); 1358 static inline u32 i915_safe_read(struct drm_i915_private *dev_priv, u32 reg) 1359 { 1360 u32 val; 1361 1362 if (dev_priv->info->gen >= 6) { 1363 __gen6_force_wake_get(dev_priv); 1364 val = I915_READ(reg); 1365 __gen6_force_wake_put(dev_priv); 1366 } else 1367 val = I915_READ(reg); 1368 1369 return val; 1370 } 1371 1372 static inline void 1373 i915_write(struct drm_i915_private *dev_priv, u32 reg, u64 val, int len) 1374 { 1375 /* Trace down the write operation before the real write */ 1376 trace_i915_reg_rw('W', reg, val, len); 1377 switch (len) { 1378 case 8: 1379 writeq(val, dev_priv->regs + reg); 1380 break; 1381 case 4: 1382 writel(val, dev_priv->regs + reg); 1383 break; 1384 case 2: 1385 writew(val, dev_priv->regs + reg); 1386 break; 1387 case 1: 1388 writeb(val, dev_priv->regs + reg); 1389 break; 1390 } 1391 } 1392 1393 /** 1394 * Reads a dword out of the status page, which is written to from the command 1395 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or 1396 * MI_STORE_DATA_IMM. 1397 * 1398 * The following dwords have a reserved meaning: 1399 * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes. 1400 * 0x04: ring 0 head pointer 1401 * 0x05: ring 1 head pointer (915-class) 1402 * 0x06: ring 2 head pointer (915-class) 1403 * 0x10-0x1b: Context status DWords (GM45) 1404 * 0x1f: Last written status offset. (GM45) 1405 * 1406 * The area from dword 0x20 to 0x3ff is available for driver usage. 1407 */ 1408 #define READ_HWSP(dev_priv, reg) (((volatile u32 *)\ 1409 (LP_RING(dev_priv)->status_page.page_addr))[reg]) 1410 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX) 1411 #define I915_GEM_HWS_INDEX 0x20 1412 #define I915_BREADCRUMB_INDEX 0x21 1413 1414 #endif 1415