drivers/gpu/drm/i915/i915_drv.h

   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 <linux/io-mapping.h>
  36
  37 /* General customization:
  38  */
  39
  40 #define DRIVER_AUTHOR           "Tungsten Graphics, Inc."
  41
  42 #define DRIVER_NAME             "i915"
  43 #define DRIVER_DESC             "Intel Graphics"
  44 #define DRIVER_DATE             "20080730"
  45
  46 enum pipe {
  47         PIPE_A = 0,
  48         PIPE_B,
  49 };
  50
  51 #define I915_NUM_PIPE   2
  52
  53 /* Interface history:
  54  *
  55  * 1.1: Original.
  56  * 1.2: Add Power Management
  57  * 1.3: Add vblank support
  58  * 1.4: Fix cmdbuffer path, add heap destroy
  59  * 1.5: Add vblank pipe configuration
  60  * 1.6: - New ioctl for scheduling buffer swaps on vertical blank
  61  *      - Support vertical blank on secondary display pipe
  62  */
  63 #define DRIVER_MAJOR            1
  64 #define DRIVER_MINOR            6
  65 #define DRIVER_PATCHLEVEL       0
  66
  67 #define WATCH_COHERENCY 0
  68 #define WATCH_BUF       0
  69 #define WATCH_EXEC      0
  70 #define WATCH_LRU       0
  71 #define WATCH_RELOC     0
  72 #define WATCH_INACTIVE  0
  73 #define WATCH_PWRITE    0
  74
  75 #define I915_GEM_PHYS_CURSOR_0 1
  76 #define I915_GEM_PHYS_CURSOR_1 2
  77 #define I915_GEM_PHYS_OVERLAY_REGS 3
  78 #define I915_MAX_PHYS_OBJECT (I915_GEM_PHYS_OVERLAY_REGS)
  79
  80 struct drm_i915_gem_phys_object {
  81         int id;
  82         struct page **page_list;
  83         drm_dma_handle_t *handle;
  84         struct drm_gem_object *cur_obj;
  85 };
  86
  87 typedef struct _drm_i915_ring_buffer {
  88         int tail_mask;
  89         unsigned long Size;
  90         u8 *virtual_start;
  91         int head;
  92         int tail;
  93         int space;
  94         drm_local_map_t map;
  95         struct drm_gem_object *ring_obj;
  96 } drm_i915_ring_buffer_t;
  97
  98 struct mem_block {
  99         struct mem_block *next;
 100         struct mem_block *prev;
 101         int start;
 102         int size;
 103         struct drm_file *file_priv; /* NULL: free, -1: heap, other: real files */
 104 };
 105
 106 struct opregion_header;
 107 struct opregion_acpi;
 108 struct opregion_swsci;
 109 struct opregion_asle;
 110
 111 struct intel_opregion {
 112         struct opregion_header *header;
 113         struct opregion_acpi *acpi;
 114         struct opregion_swsci *swsci;
 115         struct opregion_asle *asle;
 116         int enabled;
 117 };
 118
 119 struct drm_i915_master_private {
 120         drm_local_map_t *sarea;
 121         struct _drm_i915_sarea *sarea_priv;
 122 };
 123 #define I915_FENCE_REG_NONE -1
 124
 125 struct drm_i915_fence_reg {
 126         struct drm_gem_object *obj;
 127 };
 128
 129 struct sdvo_device_mapping {
 130         u8 dvo_port;
 131         u8 slave_addr;
 132         u8 dvo_wiring;
 133         u8 initialized;
 134 };
 135
 136 typedef struct drm_i915_private {
 137         struct drm_device *dev;
 138
 139         int has_gem;
 140
 141         void __iomem *regs;
 142
 143         drm_i915_ring_buffer_t ring;
 144
 145         drm_dma_handle_t *status_page_dmah;
 146         void *hw_status_page;
 147         dma_addr_t dma_status_page;
 148         uint32_t counter;
 149         unsigned int status_gfx_addr;
 150         drm_local_map_t hws_map;
 151         struct drm_gem_object *hws_obj;
 152
 153         struct resource mch_res;
 154
 155         unsigned int cpp;
 156         int back_offset;
 157         int front_offset;
 158         int current_page;
 159         int page_flipping;
 160
 161         wait_queue_head_t irq_queue;
 162         atomic_t irq_received;
 163         /** Protects user_irq_refcount and irq_mask_reg */
 164         spinlock_t user_irq_lock;
 165         /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
 166         int user_irq_refcount;
 167         /** Cached value of IMR to avoid reads in updating the bitfield */
 168         u32 irq_mask_reg;
 169         u32 pipestat[2];
 170         /** splitted irq regs for graphics and display engine on IGDNG,
 171             irq_mask_reg is still used for display irq. */
 172         u32 gt_irq_mask_reg;
 173         u32 gt_irq_enable_reg;
 174         u32 de_irq_enable_reg;
 175
 176         u32 hotplug_supported_mask;
 177         struct work_struct hotplug_work;
 178
 179         int tex_lru_log_granularity;
 180         int allow_batchbuffer;
 181         struct mem_block *agp_heap;
 182         unsigned int sr01, adpa, ppcr, dvob, dvoc, lvds;
 183         int vblank_pipe;
 184
 185         bool cursor_needs_physical;
 186
 187         struct drm_mm vram;
 188
 189         int irq_enabled;
 190
 191         struct intel_opregion opregion;
 192
 193         /* LVDS info */
 194         int backlight_duty_cycle;  /* restore backlight to this value */
 195         bool panel_wants_dither;
 196         struct drm_display_mode *panel_fixed_mode;
 197         struct drm_display_mode *lfp_lvds_vbt_mode; /* if any */
 198         struct drm_display_mode *sdvo_lvds_vbt_mode; /* if any */
 199
 200         /* Feature bits from the VBIOS */
 201         unsigned int int_tv_support:1;
 202         unsigned int lvds_dither:1;
 203         unsigned int lvds_vbt:1;
 204         unsigned int int_crt_support:1;
 205         unsigned int lvds_use_ssc:1;
 206         int lvds_ssc_freq;
 207
 208         struct drm_i915_fence_reg fence_regs[16]; /* assume 965 */
 209         int fence_reg_start; /* 4 if userland hasn't ioctl'd us yet */
 210         int num_fence_regs; /* 8 on pre-965, 16 otherwise */
 211
 212         /* Register state */
 213         u8 saveLBB;
 214         u32 saveDSPACNTR;
 215         u32 saveDSPBCNTR;
 216         u32 saveDSPARB;
 217         u32 saveRENDERSTANDBY;
 218         u32 saveHWS;
 219         u32 savePIPEACONF;
 220         u32 savePIPEBCONF;
 221         u32 savePIPEASRC;
 222         u32 savePIPEBSRC;
 223         u32 saveFPA0;
 224         u32 saveFPA1;
 225         u32 saveDPLL_A;
 226         u32 saveDPLL_A_MD;
 227         u32 saveHTOTAL_A;
 228         u32 saveHBLANK_A;
 229         u32 saveHSYNC_A;
 230         u32 saveVTOTAL_A;
 231         u32 saveVBLANK_A;
 232         u32 saveVSYNC_A;
 233         u32 saveBCLRPAT_A;
 234         u32 savePIPEASTAT;
 235         u32 saveDSPASTRIDE;
 236         u32 saveDSPASIZE;
 237         u32 saveDSPAPOS;
 238         u32 saveDSPAADDR;
 239         u32 saveDSPASURF;
 240         u32 saveDSPATILEOFF;
 241         u32 savePFIT_PGM_RATIOS;
 242         u32 saveBLC_PWM_CTL;
 243         u32 saveBLC_PWM_CTL2;
 244         u32 saveFPB0;
 245         u32 saveFPB1;
 246         u32 saveDPLL_B;
 247         u32 saveDPLL_B_MD;
 248         u32 saveHTOTAL_B;
 249         u32 saveHBLANK_B;
 250         u32 saveHSYNC_B;
 251         u32 saveVTOTAL_B;
 252         u32 saveVBLANK_B;
 253         u32 saveVSYNC_B;
 254         u32 saveBCLRPAT_B;
 255         u32 savePIPEBSTAT;
 256         u32 saveDSPBSTRIDE;
 257         u32 saveDSPBSIZE;
 258         u32 saveDSPBPOS;
 259         u32 saveDSPBADDR;
 260         u32 saveDSPBSURF;
 261         u32 saveDSPBTILEOFF;
 262         u32 saveVGA0;
 263         u32 saveVGA1;
 264         u32 saveVGA_PD;
 265         u32 saveVGACNTRL;
 266         u32 saveADPA;
 267         u32 saveLVDS;
 268         u32 savePP_ON_DELAYS;
 269         u32 savePP_OFF_DELAYS;
 270         u32 saveDVOA;
 271         u32 saveDVOB;
 272         u32 saveDVOC;
 273         u32 savePP_ON;
 274         u32 savePP_OFF;
 275         u32 savePP_CONTROL;
 276         u32 savePP_DIVISOR;
 277         u32 savePFIT_CONTROL;
 278         u32 save_palette_a[256];
 279         u32 save_palette_b[256];
 280         u32 saveFBC_CFB_BASE;
 281         u32 saveFBC_LL_BASE;
 282         u32 saveFBC_CONTROL;
 283         u32 saveFBC_CONTROL2;
 284         u32 saveIER;
 285         u32 saveIIR;
 286         u32 saveIMR;
 287         u32 saveCACHE_MODE_0;
 288         u32 saveD_STATE;
 289         u32 saveCG_2D_DIS;
 290         u32 saveMI_ARB_STATE;
 291         u32 saveSWF0[16];
 292         u32 saveSWF1[16];
 293         u32 saveSWF2[3];
 294         u8 saveMSR;
 295         u8 saveSR[8];
 296         u8 saveGR[25];
 297         u8 saveAR_INDEX;
 298         u8 saveAR[21];
 299         u8 saveDACMASK;
 300         u8 saveCR[37];
 301         uint64_t saveFENCE[16];
 302         u32 saveCURACNTR;
 303         u32 saveCURAPOS;
 304         u32 saveCURABASE;
 305         u32 saveCURBCNTR;
 306         u32 saveCURBPOS;
 307         u32 saveCURBBASE;
 308         u32 saveCURSIZE;
 309         u32 saveDP_B;
 310         u32 saveDP_C;
 311         u32 saveDP_D;
 312         u32 savePIPEA_GMCH_DATA_M;
 313         u32 savePIPEB_GMCH_DATA_M;
 314         u32 savePIPEA_GMCH_DATA_N;
 315         u32 savePIPEB_GMCH_DATA_N;
 316         u32 savePIPEA_DP_LINK_M;
 317         u32 savePIPEB_DP_LINK_M;
 318         u32 savePIPEA_DP_LINK_N;
 319         u32 savePIPEB_DP_LINK_N;
 320
 321         struct {
 322                 struct drm_mm gtt_space;
 323
 324                 struct io_mapping *gtt_mapping;
 325                 int gtt_mtrr;
 326
 327                 /**
 328                  * List of objects currently involved in rendering from the
 329                  * ringbuffer.
 330                  *
 331                  * Includes buffers having the contents of their GPU caches
 332                  * flushed, not necessarily primitives.  last_rendering_seqno
 333                  * represents when the rendering involved will be completed.
 334                  *
 335                  * A reference is held on the buffer while on this list.
 336                  */
 337                 spinlock_t active_list_lock;
 338                 struct list_head active_list;
 339
 340                 /**
 341                  * List of objects which are not in the ringbuffer but which
 342                  * still have a write_domain which needs to be flushed before
 343                  * unbinding.
 344                  *
 345                  * last_rendering_seqno is 0 while an object is in this list.
 346                  *
 347                  * A reference is held on the buffer while on this list.
 348                  */
 349                 struct list_head flushing_list;
 350
 351                 /**
 352                  * LRU list of objects which are not in the ringbuffer and
 353                  * are ready to unbind, but are still in the GTT.
 354                  *
 355                  * last_rendering_seqno is 0 while an object is in this list.
 356                  *
 357                  * A reference is not held on the buffer while on this list,
 358                  * as merely being GTT-bound shouldn't prevent its being
 359                  * freed, and we'll pull it off the list in the free path.
 360                  */
 361                 struct list_head inactive_list;
 362
 363                 /**
 364                  * List of breadcrumbs associated with GPU requests currently
 365                  * outstanding.
 366                  */
 367                 struct list_head request_list;
 368
 369                 /**
 370                  * We leave the user IRQ off as much as possible,
 371                  * but this means that requests will finish and never
 372                  * be retired once the system goes idle. Set a timer to
 373                  * fire periodically while the ring is running. When it
 374                  * fires, go retire requests.
 375                  */
 376                 struct delayed_work retire_work;
 377
 378                 uint32_t next_gem_seqno;
 379
 380                 /**
 381                  * Waiting sequence number, if any
 382                  */
 383                 uint32_t waiting_gem_seqno;
 384
 385                 /**
 386                  * Last seq seen at irq time
 387                  */
 388                 uint32_t irq_gem_seqno;
 389
 390                 /**
 391                  * Flag if the X Server, and thus DRM, is not currently in
 392                  * control of the device.
 393                  *
 394                  * This is set between LeaveVT and EnterVT.  It needs to be
 395                  * replaced with a semaphore.  It also needs to be
 396                  * transitioned away from for kernel modesetting.
 397                  */
 398                 int suspended;
 399
 400                 /**
 401                  * Flag if the hardware appears to be wedged.
 402                  *
 403                  * This is set when attempts to idle the device timeout.
 404                  * It prevents command submission from occuring and makes
 405                  * every pending request fail
 406                  */
 407                 int wedged;
 408
 409                 /** Bit 6 swizzling required for X tiling */
 410                 uint32_t bit_6_swizzle_x;
 411                 /** Bit 6 swizzling required for Y tiling */
 412                 uint32_t bit_6_swizzle_y;
 413
 414                 /* storage for physical objects */
 415                 struct drm_i915_gem_phys_object *phys_objs[I915_MAX_PHYS_OBJECT];
 416         } mm;
 417         struct sdvo_device_mapping sdvo_mappings[2];
 418 } drm_i915_private_t;
 419
 420 /** driver private structure attached to each drm_gem_object */
 421 struct drm_i915_gem_object {
 422         struct drm_gem_object *obj;
 423
 424         /** Current space allocated to this object in the GTT, if any. */
 425         struct drm_mm_node *gtt_space;
 426
 427         /** This object's place on the active/flushing/inactive lists */
 428         struct list_head list;
 429
 430         /**
 431          * This is set if the object is on the active or flushing lists
 432          * (has pending rendering), and is not set if it's on inactive (ready
 433          * to be unbound).
 434          */
 435         int active;
 436
 437         /**
 438          * This is set if the object has been written to since last bound
 439          * to the GTT
 440          */
 441         int dirty;
 442
 443         /** AGP memory structure for our GTT binding. */
 444         DRM_AGP_MEM *agp_mem;
 445
 446         struct page **pages;
 447         int pages_refcount;
 448
 449         /**
 450          * Current offset of the object in GTT space.
 451          *
 452          * This is the same as gtt_space->start
 453          */
 454         uint32_t gtt_offset;
 455         /**
 456          * Required alignment for the object
 457          */
 458         uint32_t gtt_alignment;
 459         /**
 460          * Fake offset for use by mmap(2)
 461          */
 462         uint64_t mmap_offset;
 463
 464         /**
 465          * Fence register bits (if any) for this object.  Will be set
 466          * as needed when mapped into the GTT.
 467          * Protected by dev->struct_mutex.
 468          */
 469         int fence_reg;
 470
 471         /** Boolean whether this object has a valid gtt offset. */
 472         int gtt_bound;
 473
 474         /** How many users have pinned this object in GTT space */
 475         int pin_count;
 476
 477         /** Breadcrumb of last rendering to the buffer. */
 478         uint32_t last_rendering_seqno;
 479
 480         /** Current tiling mode for the object. */
 481         uint32_t tiling_mode;
 482         uint32_t stride;
 483
 484         /** Record of address bit 17 of each page at last unbind. */
 485         long *bit_17;
 486
 487         /** AGP mapping type (AGP_USER_MEMORY or AGP_USER_CACHED_MEMORY */
 488         uint32_t agp_type;
 489
 490         /**
 491          * If present, while GEM_DOMAIN_CPU is in the read domain this array
 492          * flags which individual pages are valid.
 493          */
 494         uint8_t *page_cpu_valid;
 495
 496         /** User space pin count and filp owning the pin */
 497         uint32_t user_pin_count;
 498         struct drm_file *pin_filp;
 499
 500         /** for phy allocated objects */
 501         struct drm_i915_gem_phys_object *phys_obj;
 502
 503         /**
 504          * Used for checking the object doesn't appear more than once
 505          * in an execbuffer object list.
 506          */
 507         int in_execbuffer;
 508 };
 509
 510 /**
 511  * Request queue structure.
 512  *
 513  * The request queue allows us to note sequence numbers that have been emitted
 514  * and may be associated with active buffers to be retired.
 515  *
 516  * By keeping this list, we can avoid having to do questionable
 517  * sequence-number comparisons on buffer last_rendering_seqnos, and associate
 518  * an emission time with seqnos for tracking how far ahead of the GPU we are.
 519  */
 520 struct drm_i915_gem_request {
 521         /** GEM sequence number associated with this request. */
 522         uint32_t seqno;
 523
 524         /** Time at which this request was emitted, in jiffies. */
 525         unsigned long emitted_jiffies;
 526
 527         /** global list entry for this request */
 528         struct list_head list;
 529
 530         /** file_priv list entry for this request */
 531         struct list_head client_list;
 532 };
 533
 534 struct drm_i915_file_private {
 535         struct {
 536                 struct list_head request_list;
 537         } mm;
 538 };
 539
 540 enum intel_chip_family {
 541         CHIP_I8XX = 0x01,
 542         CHIP_I9XX = 0x02,
 543         CHIP_I915 = 0x04,
 544         CHIP_I965 = 0x08,
 545 };
 546
 547 extern struct drm_ioctl_desc i915_ioctls[];
 548 extern int i915_max_ioctl;
 549 extern unsigned int i915_fbpercrtc;
 550
 551 extern int i915_master_create(struct drm_device *dev, struct drm_master *master);
 552 extern void i915_master_destroy(struct drm_device *dev, struct drm_master *master);
 553
 554                                 /* i915_dma.c */
 555 extern void i915_kernel_lost_context(struct drm_device * dev);
 556 extern int i915_driver_load(struct drm_device *, unsigned long flags);
 557 extern int i915_driver_unload(struct drm_device *);
 558 extern int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv);
 559 extern void i915_driver_lastclose(struct drm_device * dev);
 560 extern void i915_driver_preclose(struct drm_device *dev,
 561                                  struct drm_file *file_priv);
 562 extern void i915_driver_postclose(struct drm_device *dev,
 563                                   struct drm_file *file_priv);
 564 extern int i915_driver_device_is_agp(struct drm_device * dev);
 565 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
 566                               unsigned long arg);
 567 extern int i915_emit_box(struct drm_device *dev,
 568                          struct drm_clip_rect *boxes,
 569                          int i, int DR1, int DR4);
 570
 571 /* i915_irq.c */
 572 extern int i915_irq_emit(struct drm_device *dev, void *data,
 573                          struct drm_file *file_priv);
 574 extern int i915_irq_wait(struct drm_device *dev, void *data,
 575                          struct drm_file *file_priv);
 576 void i915_user_irq_get(struct drm_device *dev);
 577 void i915_user_irq_put(struct drm_device *dev);
 578 extern void i915_enable_interrupt (struct drm_device *dev);
 579
 580 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
 581 extern void i915_driver_irq_preinstall(struct drm_device * dev);
 582 extern int i915_driver_irq_postinstall(struct drm_device *dev);
 583 extern void i915_driver_irq_uninstall(struct drm_device * dev);
 584 extern int i915_vblank_pipe_set(struct drm_device *dev, void *data,
 585                                 struct drm_file *file_priv);
 586 extern int i915_vblank_pipe_get(struct drm_device *dev, void *data,
 587                                 struct drm_file *file_priv);
 588 extern int i915_enable_vblank(struct drm_device *dev, int crtc);
 589 extern void i915_disable_vblank(struct drm_device *dev, int crtc);
 590 extern u32 i915_get_vblank_counter(struct drm_device *dev, int crtc);
 591 extern u32 gm45_get_vblank_counter(struct drm_device *dev, int crtc);
 592 extern int i915_vblank_swap(struct drm_device *dev, void *data,
 593                             struct drm_file *file_priv);
 594 extern void i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask);
 595
 596 void
 597 i915_enable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
 598
 599 void
 600 i915_disable_pipestat(drm_i915_private_t *dev_priv, int pipe, u32 mask);
 601
 602
 603 /* i915_mem.c */
 604 extern int i915_mem_alloc(struct drm_device *dev, void *data,
 605                           struct drm_file *file_priv);
 606 extern int i915_mem_free(struct drm_device *dev, void *data,
 607                          struct drm_file *file_priv);
 608 extern int i915_mem_init_heap(struct drm_device *dev, void *data,
 609                               struct drm_file *file_priv);
 610 extern int i915_mem_destroy_heap(struct drm_device *dev, void *data,
 611                                  struct drm_file *file_priv);
 612 extern void i915_mem_takedown(struct mem_block **heap);
 613 extern void i915_mem_release(struct drm_device * dev,
 614                              struct drm_file *file_priv, struct mem_block *heap);
 615 /* i915_gem.c */
 616 int i915_gem_init_ioctl(struct drm_device *dev, void *data,
 617                         struct drm_file *file_priv);
 618 int i915_gem_create_ioctl(struct drm_device *dev, void *data,
 619                           struct drm_file *file_priv);
 620 int i915_gem_pread_ioctl(struct drm_device *dev, void *data,
 621                          struct drm_file *file_priv);
 622 int i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 623                           struct drm_file *file_priv);
 624 int i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
 625                         struct drm_file *file_priv);
 626 int i915_gem_mmap_gtt_ioctl(struct drm_device *dev, void *data,
 627                         struct drm_file *file_priv);
 628 int i915_gem_set_domain_ioctl(struct drm_device *dev, void *data,
 629                               struct drm_file *file_priv);
 630 int i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
 631                              struct drm_file *file_priv);
 632 int i915_gem_execbuffer(struct drm_device *dev, void *data,
 633                         struct drm_file *file_priv);
 634 int i915_gem_pin_ioctl(struct drm_device *dev, void *data,
 635                        struct drm_file *file_priv);
 636 int i915_gem_unpin_ioctl(struct drm_device *dev, void *data,
 637                          struct drm_file *file_priv);
 638 int i915_gem_busy_ioctl(struct drm_device *dev, void *data,
 639                         struct drm_file *file_priv);
 640 int i915_gem_throttle_ioctl(struct drm_device *dev, void *data,
 641                             struct drm_file *file_priv);
 642 int i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
 643                            struct drm_file *file_priv);
 644 int i915_gem_leavevt_ioctl(struct drm_device *dev, void *data,
 645                            struct drm_file *file_priv);
 646 int i915_gem_set_tiling(struct drm_device *dev, void *data,
 647                         struct drm_file *file_priv);
 648 int i915_gem_get_tiling(struct drm_device *dev, void *data,
 649                         struct drm_file *file_priv);
 650 int i915_gem_get_aperture_ioctl(struct drm_device *dev, void *data,
 651                                 struct drm_file *file_priv);
 652 void i915_gem_load(struct drm_device *dev);
 653 int i915_gem_init_object(struct drm_gem_object *obj);
 654 void i915_gem_free_object(struct drm_gem_object *obj);
 655 int i915_gem_object_pin(struct drm_gem_object *obj, uint32_t alignment);
 656 void i915_gem_object_unpin(struct drm_gem_object *obj);
 657 int i915_gem_object_unbind(struct drm_gem_object *obj);
 658 void i915_gem_lastclose(struct drm_device *dev);
 659 uint32_t i915_get_gem_seqno(struct drm_device *dev);
 660 int i915_gem_object_get_fence_reg(struct drm_gem_object *obj);
 661 int i915_gem_object_put_fence_reg(struct drm_gem_object *obj);
 662 void i915_gem_retire_requests(struct drm_device *dev);
 663 void i915_gem_retire_work_handler(struct work_struct *work);
 664 void i915_gem_clflush_object(struct drm_gem_object *obj);
 665 int i915_gem_object_set_domain(struct drm_gem_object *obj,
 666                                uint32_t read_domains,
 667                                uint32_t write_domain);
 668 int i915_gem_init_ringbuffer(struct drm_device *dev);
 669 void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
 670 int i915_gem_do_init(struct drm_device *dev, unsigned long start,
 671                      unsigned long end);
 672 int i915_gem_idle(struct drm_device *dev);
 673 int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
 674 int i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj,
 675                                       int write);
 676 int i915_gem_attach_phys_object(struct drm_device *dev,
 677                                 struct drm_gem_object *obj, int id);
 678 void i915_gem_detach_phys_object(struct drm_device *dev,
 679                                  struct drm_gem_object *obj);
 680 void i915_gem_free_all_phys_object(struct drm_device *dev);
 681 int i915_gem_object_get_pages(struct drm_gem_object *obj);
 682 void i915_gem_object_put_pages(struct drm_gem_object *obj);
 683 void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
 684
 685 /* i915_gem_tiling.c */
 686 void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);
 687 void i915_gem_object_do_bit_17_swizzle(struct drm_gem_object *obj);
 688 void i915_gem_object_save_bit_17_swizzle(struct drm_gem_object *obj);
 689
 690 /* i915_gem_debug.c */
 691 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
 692                           const char *where, uint32_t mark);
 693 #if WATCH_INACTIVE
 694 void i915_verify_inactive(struct drm_device *dev, char *file, int line);
 695 #else
 696 #define i915_verify_inactive(dev, file, line)
 697 #endif
 698 void i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle);
 699 void i915_gem_dump_object(struct drm_gem_object *obj, int len,
 700                           const char *where, uint32_t mark);
 701 void i915_dump_lru(struct drm_device *dev, const char *where);
 702
 703 /* i915_debugfs.c */
 704 int i915_gem_debugfs_init(struct drm_minor *minor);
 705 void i915_gem_debugfs_cleanup(struct drm_minor *minor);
 706
 707 /* i915_suspend.c */
 708 extern int i915_save_state(struct drm_device *dev);
 709 extern int i915_restore_state(struct drm_device *dev);
 710
 711 /* i915_suspend.c */
 712 extern int i915_save_state(struct drm_device *dev);
 713 extern int i915_restore_state(struct drm_device *dev);
 714
 715 #ifdef CONFIG_ACPI
 716 /* i915_opregion.c */
 717 extern int intel_opregion_init(struct drm_device *dev, int resume);
 718 extern void intel_opregion_free(struct drm_device *dev, int suspend);
 719 extern void opregion_asle_intr(struct drm_device *dev);
 720 extern void opregion_enable_asle(struct drm_device *dev);
 721 #else
 722 static inline int intel_opregion_init(struct drm_device *dev, int resume) { return 0; }
 723 static inline void intel_opregion_free(struct drm_device *dev, int suspend) { return; }
 724 static inline void opregion_asle_intr(struct drm_device *dev) { return; }
 725 static inline void opregion_enable_asle(struct drm_device *dev) { return; }
 726 #endif
 727
 728 /* modesetting */
 729 extern void intel_modeset_init(struct drm_device *dev);
 730 extern void intel_modeset_cleanup(struct drm_device *dev);
 731
 732 /**
 733  * Lock test for when it's just for synchronization of ring access.
 734  *
 735  * In that case, we don't need to do it when GEM is initialized as nobody else
 736  * has access to the ring.
 737  */
 738 #define RING_LOCK_TEST_WITH_RETURN(dev, file_priv) do {                 \
 739         if (((drm_i915_private_t *)dev->dev_private)->ring.ring_obj == NULL) \
 740                 LOCK_TEST_WITH_RETURN(dev, file_priv);                  \
 741 } while (0)
 742
 743 #define I915_READ(reg)          readl(dev_priv->regs + (reg))
 744 #define I915_WRITE(reg, val)     writel(val, dev_priv->regs + (reg))
 745 #define I915_READ16(reg)        readw(dev_priv->regs + (reg))
 746 #define I915_WRITE16(reg, val)  writel(val, dev_priv->regs + (reg))
 747 #define I915_READ8(reg)         readb(dev_priv->regs + (reg))
 748 #define I915_WRITE8(reg, val)   writeb(val, dev_priv->regs + (reg))
 749 #define I915_WRITE64(reg, val)  writeq(val, dev_priv->regs + (reg))
 750 #define I915_READ64(reg)        readq(dev_priv->regs + (reg))
 751 #define POSTING_READ(reg)       (void)I915_READ(reg)
 752
 753 #define I915_VERBOSE 0
 754
 755 #define RING_LOCALS     unsigned int outring, ringmask, outcount; \
 756                         volatile char *virt;
 757
 758 #define BEGIN_LP_RING(n) do {                           \
 759         if (I915_VERBOSE)                               \
 760                 DRM_DEBUG("BEGIN_LP_RING(%d)\n", (n));  \
 761         if (dev_priv->ring.space < (n)*4)               \
 762                 i915_wait_ring(dev, (n)*4, __func__);           \
 763         outcount = 0;                                   \
 764         outring = dev_priv->ring.tail;                  \
 765         ringmask = dev_priv->ring.tail_mask;            \
 766         virt = dev_priv->ring.virtual_start;            \
 767 } while (0)
 768
 769 #define OUT_RING(n) do {                                        \
 770         if (I915_VERBOSE) DRM_DEBUG("   OUT_RING %x\n", (int)(n));      \
 771         *(volatile unsigned int *)(virt + outring) = (n);       \
 772         outcount++;                                             \
 773         outring += 4;                                           \
 774         outring &= ringmask;                                    \
 775 } while (0)
 776
 777 #define ADVANCE_LP_RING() do {                                          \
 778         if (I915_VERBOSE) DRM_DEBUG("ADVANCE_LP_RING %x\n", outring);   \
 779         dev_priv->ring.tail = outring;                                  \
 780         dev_priv->ring.space -= outcount * 4;                           \
 781         I915_WRITE(PRB0_TAIL, outring);                 \
 782 } while(0)
 783
 784 /**
 785  * Reads a dword out of the status page, which is written to from the command
 786  * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or
 787  * MI_STORE_DATA_IMM.
 788  *
 789  * The following dwords have a reserved meaning:
 790  * 0x00: ISR copy, updated when an ISR bit not set in the HWSTAM changes.
 791  * 0x04: ring 0 head pointer
 792  * 0x05: ring 1 head pointer (915-class)
 793  * 0x06: ring 2 head pointer (915-class)
 794  * 0x10-0x1b: Context status DWords (GM45)
 795  * 0x1f: Last written status offset. (GM45)
 796  *
 797  * The area from dword 0x20 to 0x3ff is available for driver usage.
 798  */
 799 #define READ_HWSP(dev_priv, reg)  (((volatile u32*)(dev_priv->hw_status_page))[reg])
 800 #define READ_BREADCRUMB(dev_priv) READ_HWSP(dev_priv, I915_BREADCRUMB_INDEX)
 801 #define I915_GEM_HWS_INDEX              0x20
 802 #define I915_BREADCRUMB_INDEX           0x21
 803
 804 extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
 805
 806 #define IS_I830(dev) ((dev)->pci_device == 0x3577)
 807 #define IS_845G(dev) ((dev)->pci_device == 0x2562)
 808 #define IS_I85X(dev) ((dev)->pci_device == 0x3582)
 809 #define IS_I855(dev) ((dev)->pci_device == 0x3582)
 810 #define IS_I865G(dev) ((dev)->pci_device == 0x2572)
 811
 812 #define IS_I915G(dev) ((dev)->pci_device == 0x2582 || (dev)->pci_device == 0x258a)
 813 #define IS_I915GM(dev) ((dev)->pci_device == 0x2592)
 814 #define IS_I945G(dev) ((dev)->pci_device == 0x2772)
 815 #define IS_I945GM(dev) ((dev)->pci_device == 0x27A2 ||\
 816                         (dev)->pci_device == 0x27AE)
 817 #define IS_I965G(dev) ((dev)->pci_device == 0x2972 || \
 818                        (dev)->pci_device == 0x2982 || \
 819                        (dev)->pci_device == 0x2992 || \
 820                        (dev)->pci_device == 0x29A2 || \
 821                        (dev)->pci_device == 0x2A02 || \
 822                        (dev)->pci_device == 0x2A12 || \
 823                        (dev)->pci_device == 0x2A42 || \
 824                        (dev)->pci_device == 0x2E02 || \
 825                        (dev)->pci_device == 0x2E12 || \
 826                        (dev)->pci_device == 0x2E22 || \
 827                        (dev)->pci_device == 0x2E32 || \
 828                        (dev)->pci_device == 0x0042 || \
 829                        (dev)->pci_device == 0x0046)
 830
 831 #define IS_I965GM(dev) ((dev)->pci_device == 0x2A02 || \
 832                         (dev)->pci_device == 0x2A12)
 833
 834 #define IS_GM45(dev) ((dev)->pci_device == 0x2A42)
 835
 836 #define IS_G4X(dev) ((dev)->pci_device == 0x2E02 || \
 837                      (dev)->pci_device == 0x2E12 || \
 838                      (dev)->pci_device == 0x2E22 || \
 839                      (dev)->pci_device == 0x2E32 || \
 840                      IS_GM45(dev))
 841
 842 #define IS_IGDG(dev) ((dev)->pci_device == 0xa001)
 843 #define IS_IGDGM(dev) ((dev)->pci_device == 0xa011)
 844 #define IS_IGD(dev) (IS_IGDG(dev) || IS_IGDGM(dev))
 845
 846 #define IS_G33(dev)    ((dev)->pci_device == 0x29C2 ||  \
 847                         (dev)->pci_device == 0x29B2 ||  \
 848                         (dev)->pci_device == 0x29D2 ||  \
 849                         (IS_IGD(dev)))
 850
 851 #define IS_IGDNG_D(dev) ((dev)->pci_device == 0x0042)
 852 #define IS_IGDNG_M(dev) ((dev)->pci_device == 0x0046)
 853 #define IS_IGDNG(dev)   (IS_IGDNG_D(dev) || IS_IGDNG_M(dev))
 854
 855 #define IS_I9XX(dev) (IS_I915G(dev) || IS_I915GM(dev) || IS_I945G(dev) || \
 856                       IS_I945GM(dev) || IS_I965G(dev) || IS_G33(dev) || \
 857                       IS_IGDNG(dev))
 858
 859 #define IS_MOBILE(dev) (IS_I830(dev) || IS_I85X(dev) || IS_I915GM(dev) || \
 860                         IS_I945GM(dev) || IS_I965GM(dev) || IS_GM45(dev) || \
 861                         IS_IGD(dev) || IS_IGDNG_M(dev))
 862
 863 #define I915_NEED_GFX_HWS(dev) (IS_G33(dev) || IS_GM45(dev) || IS_G4X(dev) || \
 864                                 IS_IGDNG(dev))
 865 /* With the 945 and later, Y tiling got adjusted so that it was 32 128-byte
 866  * rows, which changed the alignment requirements and fence programming.
 867  */
 868 #define HAS_128_BYTE_Y_TILING(dev) (IS_I9XX(dev) && !(IS_I915G(dev) || \
 869                                                       IS_I915GM(dev)))
 870 #define SUPPORTS_INTEGRATED_HDMI(dev)   (IS_G4X(dev) || IS_IGDNG(dev))
 871 #define SUPPORTS_INTEGRATED_DP(dev)     (IS_G4X(dev) || IS_IGDNG(dev))
 872 #define I915_HAS_HOTPLUG(dev) (IS_I945G(dev) || IS_I945GM(dev) || IS_I965G(dev))
 873
 874 #define PRIMARY_RINGBUFFER_SIZE         (128*1024)
 875
 876 #endif