drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25 #ifndef __INTEL_DRV_H__
  26 #define __INTEL_DRV_H__
  27
  28 #include <linux/async.h>
  29 #include <linux/i2c.h>
  30 #include <linux/hdmi.h>
  31 #include <drm/i915_drm.h>
  32 #include "i915_drv.h"
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_crtc_helper.h>
  35 #include <drm/drm_fb_helper.h>
  36 #include <drm/drm_dp_mst_helper.h>
  37 #include <drm/drm_rect.h>
  38 #include <drm/drm_atomic.h>
  39
  40 /**
  41  * _wait_for - magic (register) wait macro
  42  *
  43  * Does the right thing for modeset paths when run under kdgb or similar atomic
  44  * contexts. Note that it's important that we check the condition again after
  45  * having timed out, since the timeout could be due to preemption or similar and
  46  * we've never had a chance to check the condition before the timeout.
  47  */
  48 #define _wait_for(COND, MS, W) ({ \
  49         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
  50         int ret__ = 0;                                                  \
  51         while (!(COND)) {                                               \
  52                 if (time_after(jiffies, timeout__)) {                   \
  53                         if (!(COND))                                    \
  54                                 ret__ = -ETIMEDOUT;                     \
  55                         break;                                          \
  56                 }                                                       \
  57                 if ((W) && drm_can_sleep()) {                           \
  58                         usleep_range((W)*1000, (W)*2000);               \
  59                 } else {                                                \
  60                         cpu_relax();                                    \
  61                 }                                                       \
  62         }                                                               \
  63         ret__;                                                          \
  64 })
  65
  66 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  67 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  68 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
  69                                                DIV_ROUND_UP((US), 1000), 0)
  70
  71 #define KHz(x) (1000 * (x))
  72 #define MHz(x) KHz(1000 * (x))
  73
  74 /*
  75  * Display related stuff
  76  */
  77
  78 /* store information about an Ixxx DVO */
  79 /* The i830->i865 use multiple DVOs with multiple i2cs */
  80 /* the i915, i945 have a single sDVO i2c bus - which is different */
  81 #define MAX_OUTPUTS 6
  82 /* maximum connectors per crtcs in the mode set */
  83
  84 /* Maximum cursor sizes */
  85 #define GEN2_CURSOR_WIDTH 64
  86 #define GEN2_CURSOR_HEIGHT 64
  87 #define MAX_CURSOR_WIDTH 256
  88 #define MAX_CURSOR_HEIGHT 256
  89
  90 #define INTEL_I2C_BUS_DVO 1
  91 #define INTEL_I2C_BUS_SDVO 2
  92
  93 /* these are outputs from the chip - integrated only
  94    external chips are via DVO or SDVO output */
  95 enum intel_output_type {
  96         INTEL_OUTPUT_UNUSED = 0,
  97         INTEL_OUTPUT_ANALOG = 1,
  98         INTEL_OUTPUT_DVO = 2,
  99         INTEL_OUTPUT_SDVO = 3,
 100         INTEL_OUTPUT_LVDS = 4,
 101         INTEL_OUTPUT_TVOUT = 5,
 102         INTEL_OUTPUT_HDMI = 6,
 103         INTEL_OUTPUT_DISPLAYPORT = 7,
 104         INTEL_OUTPUT_EDP = 8,
 105         INTEL_OUTPUT_DSI = 9,
 106         INTEL_OUTPUT_UNKNOWN = 10,
 107         INTEL_OUTPUT_DP_MST = 11,
 108 };
 109
 110 #define INTEL_DVO_CHIP_NONE 0
 111 #define INTEL_DVO_CHIP_LVDS 1
 112 #define INTEL_DVO_CHIP_TMDS 2
 113 #define INTEL_DVO_CHIP_TVOUT 4
 114
 115 #define INTEL_DSI_VIDEO_MODE    0
 116 #define INTEL_DSI_COMMAND_MODE  1
 117
 118 struct intel_framebuffer {
 119         struct drm_framebuffer base;
 120         struct drm_i915_gem_object *obj;
 121 };
 122
 123 struct intel_fbdev {
 124         struct drm_fb_helper helper;
 125         struct intel_framebuffer *fb;
 126         struct list_head fbdev_list;
 127         struct drm_display_mode *our_mode;
 128         int preferred_bpp;
 129 };
 130
 131 struct intel_encoder {
 132         struct drm_encoder base;
 133
 134         enum intel_output_type type;
 135         unsigned int cloneable;
 136         void (*hot_plug)(struct intel_encoder *);
 137         bool (*compute_config)(struct intel_encoder *,
 138                                struct intel_crtc_state *);
 139         void (*pre_pll_enable)(struct intel_encoder *);
 140         void (*pre_enable)(struct intel_encoder *);
 141         void (*enable)(struct intel_encoder *);
 142         void (*mode_set)(struct intel_encoder *intel_encoder);
 143         void (*disable)(struct intel_encoder *);
 144         void (*post_disable)(struct intel_encoder *);
 145         void (*post_pll_disable)(struct intel_encoder *);
 146         /* Read out the current hw state of this connector, returning true if
 147          * the encoder is active. If the encoder is enabled it also set the pipe
 148          * it is connected to in the pipe parameter. */
 149         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 150         /* Reconstructs the equivalent mode flags for the current hardware
 151          * state. This must be called _after_ display->get_pipe_config has
 152          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 153          * be set correctly before calling this function. */
 154         void (*get_config)(struct intel_encoder *,
 155                            struct intel_crtc_state *pipe_config);
 156         /*
 157          * Called during system suspend after all pending requests for the
 158          * encoder are flushed (for example for DP AUX transactions) and
 159          * device interrupts are disabled.
 160          */
 161         void (*suspend)(struct intel_encoder *);
 162         int crtc_mask;
 163         enum hpd_pin hpd_pin;
 164 };
 165
 166 struct intel_panel {
 167         struct drm_display_mode *fixed_mode;
 168         struct drm_display_mode *downclock_mode;
 169         int fitting_mode;
 170
 171         /* backlight */
 172         struct {
 173                 bool present;
 174                 u32 level;
 175                 u32 min;
 176                 u32 max;
 177                 bool enabled;
 178                 bool combination_mode;  /* gen 2/4 only */
 179                 bool active_low_pwm;
 180
 181                 /* PWM chip */
 182                 bool util_pin_active_low;       /* bxt+ */
 183                 u8 controller;          /* bxt+ only */
 184                 struct pwm_device *pwm;
 185
 186                 struct backlight_device *device;
 187
 188                 /* Connector and platform specific backlight functions */
 189                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 190                 uint32_t (*get)(struct intel_connector *connector);
 191                 void (*set)(struct intel_connector *connector, uint32_t level);
 192                 void (*disable)(struct intel_connector *connector);
 193                 void (*enable)(struct intel_connector *connector);
 194                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 195                                       uint32_t hz);
 196                 void (*power)(struct intel_connector *, bool enable);
 197         } backlight;
 198 };
 199
 200 struct intel_connector {
 201         struct drm_connector base;
 202         /*
 203          * The fixed encoder this connector is connected to.
 204          */
 205         struct intel_encoder *encoder;
 206
 207         /* Reads out the current hw, returning true if the connector is enabled
 208          * and active (i.e. dpms ON state). */
 209         bool (*get_hw_state)(struct intel_connector *);
 210
 211         /*
 212          * Removes all interfaces through which the connector is accessible
 213          * - like sysfs, debugfs entries -, so that no new operations can be
 214          * started on the connector. Also makes sure all currently pending
 215          * operations finish before returing.
 216          */
 217         void (*unregister)(struct intel_connector *);
 218
 219         /* Panel info for eDP and LVDS */
 220         struct intel_panel panel;
 221
 222         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 223         struct edid *edid;
 224         struct edid *detect_edid;
 225
 226         /* since POLL and HPD connectors may use the same HPD line keep the native
 227            state of connector->polled in case hotplug storm detection changes it */
 228         u8 polled;
 229
 230         void *port; /* store this opaque as its illegal to dereference it */
 231
 232         struct intel_dp *mst_port;
 233 };
 234
 235 typedef struct dpll {
 236         /* given values */
 237         int n;
 238         int m1, m2;
 239         int p1, p2;
 240         /* derived values */
 241         int     dot;
 242         int     vco;
 243         int     m;
 244         int     p;
 245 } intel_clock_t;
 246
 247 struct intel_atomic_state {
 248         struct drm_atomic_state base;
 249
 250         unsigned int cdclk;
 251         bool dpll_set;
 252         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
 253 };
 254
 255 struct intel_plane_state {
 256         struct drm_plane_state base;
 257         struct drm_rect src;
 258         struct drm_rect dst;
 259         struct drm_rect clip;
 260         bool visible;
 261
 262         /*
 263          * scaler_id
 264          *    = -1 : not using a scaler
 265          *    >=  0 : using a scalers
 266          *
 267          * plane requiring a scaler:
 268          *   - During check_plane, its bit is set in
 269          *     crtc_state->scaler_state.scaler_users by calling helper function
 270          *     update_scaler_plane.
 271          *   - scaler_id indicates the scaler it got assigned.
 272          *
 273          * plane doesn't require a scaler:
 274          *   - this can happen when scaling is no more required or plane simply
 275          *     got disabled.
 276          *   - During check_plane, corresponding bit is reset in
 277          *     crtc_state->scaler_state.scaler_users by calling helper function
 278          *     update_scaler_plane.
 279          */
 280         int scaler_id;
 281
 282         struct drm_intel_sprite_colorkey ckey;
 283 };
 284
 285 struct intel_initial_plane_config {
 286         struct intel_framebuffer *fb;
 287         unsigned int tiling;
 288         int size;
 289         u32 base;
 290 };
 291
 292 #define SKL_MIN_SRC_W 8
 293 #define SKL_MAX_SRC_W 4096
 294 #define SKL_MIN_SRC_H 8
 295 #define SKL_MAX_SRC_H 4096
 296 #define SKL_MIN_DST_W 8
 297 #define SKL_MAX_DST_W 4096
 298 #define SKL_MIN_DST_H 8
 299 #define SKL_MAX_DST_H 4096
 300
 301 struct intel_scaler {
 302         int in_use;
 303         uint32_t mode;
 304 };
 305
 306 struct intel_crtc_scaler_state {
 307 #define SKL_NUM_SCALERS 2
 308         struct intel_scaler scalers[SKL_NUM_SCALERS];
 309
 310         /*
 311          * scaler_users: keeps track of users requesting scalers on this crtc.
 312          *
 313          *     If a bit is set, a user is using a scaler.
 314          *     Here user can be a plane or crtc as defined below:
 315          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 316          *       bit 31    - crtc
 317          *
 318          * Instead of creating a new index to cover planes and crtc, using
 319          * existing drm_plane_index for planes which is well less than 31
 320          * planes and bit 31 for crtc. This should be fine to cover all
 321          * our platforms.
 322          *
 323          * intel_atomic_setup_scalers will setup available scalers to users
 324          * requesting scalers. It will gracefully fail if request exceeds
 325          * avilability.
 326          */
 327 #define SKL_CRTC_INDEX 31
 328         unsigned scaler_users;
 329
 330         /* scaler used by crtc for panel fitting purpose */
 331         int scaler_id;
 332 };
 333
 334 /* drm_mode->private_flags */
 335 #define I915_MODE_FLAG_INHERITED 1
 336
 337 struct intel_crtc_state {
 338         struct drm_crtc_state base;
 339
 340         /**
 341          * quirks - bitfield with hw state readout quirks
 342          *
 343          * For various reasons the hw state readout code might not be able to
 344          * completely faithfully read out the current state. These cases are
 345          * tracked with quirk flags so that fastboot and state checker can act
 346          * accordingly.
 347          */
 348 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 349         unsigned long quirks;
 350
 351         bool update_pipe;
 352
 353         /* Pipe source size (ie. panel fitter input size)
 354          * All planes will be positioned inside this space,
 355          * and get clipped at the edges. */
 356         int pipe_src_w, pipe_src_h;
 357
 358         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 359          * between pch encoders and cpu encoders. */
 360         bool has_pch_encoder;
 361
 362         /* Are we sending infoframes on the attached port */
 363         bool has_infoframe;
 364
 365         /* CPU Transcoder for the pipe. Currently this can only differ from the
 366          * pipe on Haswell (where we have a special eDP transcoder). */
 367         enum transcoder cpu_transcoder;
 368
 369         /*
 370          * Use reduced/limited/broadcast rbg range, compressing from the full
 371          * range fed into the crtcs.
 372          */
 373         bool limited_color_range;
 374
 375         /* DP has a bunch of special case unfortunately, so mark the pipe
 376          * accordingly. */
 377         bool has_dp_encoder;
 378
 379         /* Whether we should send NULL infoframes. Required for audio. */
 380         bool has_hdmi_sink;
 381
 382         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 383          * has_dp_encoder is set. */
 384         bool has_audio;
 385
 386         /*
 387          * Enable dithering, used when the selected pipe bpp doesn't match the
 388          * plane bpp.
 389          */
 390         bool dither;
 391
 392         /* Controls for the clock computation, to override various stages. */
 393         bool clock_set;
 394
 395         /* SDVO TV has a bunch of special case. To make multifunction encoders
 396          * work correctly, we need to track this at runtime.*/
 397         bool sdvo_tv_clock;
 398
 399         /*
 400          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 401          * required. This is set in the 2nd loop of calling encoder's
 402          * ->compute_config if the first pick doesn't work out.
 403          */
 404         bool bw_constrained;
 405
 406         /* Settings for the intel dpll used on pretty much everything but
 407          * haswell. */
 408         struct dpll dpll;
 409
 410         /* Selected dpll when shared or DPLL_ID_PRIVATE. */
 411         enum intel_dpll_id shared_dpll;
 412
 413         /*
 414          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
 415          * - enum skl_dpll on SKL
 416          */
 417         uint32_t ddi_pll_sel;
 418
 419         /* Actual register state of the dpll, for shared dpll cross-checking. */
 420         struct intel_dpll_hw_state dpll_hw_state;
 421
 422         int pipe_bpp;
 423         struct intel_link_m_n dp_m_n;
 424
 425         /* m2_n2 for eDP downclock */
 426         struct intel_link_m_n dp_m2_n2;
 427         bool has_drrs;
 428
 429         /*
 430          * Frequence the dpll for the port should run at. Differs from the
 431          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 432          * already multiplied by pixel_multiplier.
 433          */
 434         int port_clock;
 435
 436         /* Used by SDVO (and if we ever fix it, HDMI). */
 437         unsigned pixel_multiplier;
 438
 439         uint8_t lane_count;
 440
 441         /* Panel fitter controls for gen2-gen4 + VLV */
 442         struct {
 443                 u32 control;
 444                 u32 pgm_ratios;
 445                 u32 lvds_border_bits;
 446         } gmch_pfit;
 447
 448         /* Panel fitter placement and size for Ironlake+ */
 449         struct {
 450                 u32 pos;
 451                 u32 size;
 452                 bool enabled;
 453                 bool force_thru;
 454         } pch_pfit;
 455
 456         /* FDI configuration, only valid if has_pch_encoder is set. */
 457         int fdi_lanes;
 458         struct intel_link_m_n fdi_m_n;
 459
 460         bool ips_enabled;
 461
 462         bool double_wide;
 463
 464         bool dp_encoder_is_mst;
 465         int pbn;
 466
 467         struct intel_crtc_scaler_state scaler_state;
 468
 469         /* w/a for waiting 2 vblanks during crtc enable */
 470         enum pipe hsw_workaround_pipe;
 471 };
 472
 473 struct vlv_wm_state {
 474         struct vlv_pipe_wm wm[3];
 475         struct vlv_sr_wm sr[3];
 476         uint8_t num_active_planes;
 477         uint8_t num_levels;
 478         uint8_t level;
 479         bool cxsr;
 480 };
 481
 482 struct intel_pipe_wm {
 483         struct intel_wm_level wm[5];
 484         uint32_t linetime;
 485         bool fbc_wm_enabled;
 486         bool pipe_enabled;
 487         bool sprites_enabled;
 488         bool sprites_scaled;
 489 };
 490
 491 struct intel_mmio_flip {
 492         struct work_struct work;
 493         struct drm_i915_private *i915;
 494         struct drm_i915_gem_request *req;
 495         struct intel_crtc *crtc;
 496 };
 497
 498 struct skl_pipe_wm {
 499         struct skl_wm_level wm[8];
 500         struct skl_wm_level trans_wm;
 501         uint32_t linetime;
 502 };
 503
 504 /*
 505  * Tracking of operations that need to be performed at the beginning/end of an
 506  * atomic commit, outside the atomic section where interrupts are disabled.
 507  * These are generally operations that grab mutexes or might otherwise sleep
 508  * and thus can't be run with interrupts disabled.
 509  */
 510 struct intel_crtc_atomic_commit {
 511         /* Sleepable operations to perform before commit */
 512         bool wait_for_flips;
 513         bool disable_fbc;
 514         bool disable_ips;
 515         bool disable_cxsr;
 516         bool pre_disable_primary;
 517         bool update_wm_pre, update_wm_post;
 518         unsigned disabled_planes;
 519
 520         /* Sleepable operations to perform after commit */
 521         unsigned fb_bits;
 522         bool wait_vblank;
 523         bool update_fbc;
 524         bool post_enable_primary;
 525         unsigned update_sprite_watermarks;
 526 };
 527
 528 struct intel_crtc {
 529         struct drm_crtc base;
 530         enum pipe pipe;
 531         enum plane plane;
 532         u8 lut_r[256], lut_g[256], lut_b[256];
 533         /*
 534          * Whether the crtc and the connected output pipeline is active. Implies
 535          * that crtc->enabled is set, i.e. the current mode configuration has
 536          * some outputs connected to this crtc.
 537          */
 538         bool active;
 539         unsigned long enabled_power_domains;
 540         bool lowfreq_avail;
 541         struct intel_overlay *overlay;
 542         struct intel_unpin_work *unpin_work;
 543
 544         atomic_t unpin_work_count;
 545
 546         /* Display surface base address adjustement for pageflips. Note that on
 547          * gen4+ this only adjusts up to a tile, offsets within a tile are
 548          * handled in the hw itself (with the TILEOFF register). */
 549         unsigned long dspaddr_offset;
 550         int adjusted_x;
 551         int adjusted_y;
 552
 553         uint32_t cursor_addr;
 554         uint32_t cursor_cntl;
 555         uint32_t cursor_size;
 556         uint32_t cursor_base;
 557
 558         struct intel_crtc_state *config;
 559
 560         /* reset counter value when the last flip was submitted */
 561         unsigned int reset_counter;
 562
 563         /* Access to these should be protected by dev_priv->irq_lock. */
 564         bool cpu_fifo_underrun_disabled;
 565         bool pch_fifo_underrun_disabled;
 566
 567         /* per-pipe watermark state */
 568         struct {
 569                 /* watermarks currently being used  */
 570                 struct intel_pipe_wm active;
 571                 /* SKL wm values currently in use */
 572                 struct skl_pipe_wm skl_active;
 573                 /* allow CxSR on this pipe */
 574                 bool cxsr_allowed;
 575         } wm;
 576
 577         int scanline_offset;
 578
 579         struct {
 580                 unsigned start_vbl_count;
 581                 ktime_t start_vbl_time;
 582                 int min_vbl, max_vbl;
 583                 int scanline_start;
 584         } debug;
 585
 586         struct intel_crtc_atomic_commit atomic;
 587
 588         /* scalers available on this crtc */
 589         int num_scalers;
 590
 591         struct vlv_wm_state wm_state;
 592 };
 593
 594 struct intel_plane_wm_parameters {
 595         uint32_t horiz_pixels;
 596         uint32_t vert_pixels;
 597         /*
 598          *   For packed pixel formats:
 599          *     bytes_per_pixel - holds bytes per pixel
 600          *   For planar pixel formats:
 601          *     bytes_per_pixel - holds bytes per pixel for uv-plane
 602          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
 603          */
 604         uint8_t bytes_per_pixel;
 605         uint8_t y_bytes_per_pixel;
 606         bool enabled;
 607         bool scaled;
 608         u64 tiling;
 609         unsigned int rotation;
 610         uint16_t fifo_size;
 611 };
 612
 613 struct intel_plane {
 614         struct drm_plane base;
 615         int plane;
 616         enum pipe pipe;
 617         bool can_scale;
 618         int max_downscale;
 619         uint32_t frontbuffer_bit;
 620
 621         /* Since we need to change the watermarks before/after
 622          * enabling/disabling the planes, we need to store the parameters here
 623          * as the other pieces of the struct may not reflect the values we want
 624          * for the watermark calculations. Currently only Haswell uses this.
 625          */
 626         struct intel_plane_wm_parameters wm;
 627
 628         /*
 629          * NOTE: Do not place new plane state fields here (e.g., when adding
 630          * new plane properties).  New runtime state should now be placed in
 631          * the intel_plane_state structure and accessed via drm_plane->state.
 632          */
 633
 634         void (*update_plane)(struct drm_plane *plane,
 635                              struct drm_crtc *crtc,
 636                              struct drm_framebuffer *fb,
 637                              int crtc_x, int crtc_y,
 638                              unsigned int crtc_w, unsigned int crtc_h,
 639                              uint32_t x, uint32_t y,
 640                              uint32_t src_w, uint32_t src_h);
 641         void (*disable_plane)(struct drm_plane *plane,
 642                               struct drm_crtc *crtc);
 643         int (*check_plane)(struct drm_plane *plane,
 644                            struct intel_crtc_state *crtc_state,
 645                            struct intel_plane_state *state);
 646         void (*commit_plane)(struct drm_plane *plane,
 647                              struct intel_plane_state *state);
 648 };
 649
 650 struct intel_watermark_params {
 651         unsigned long fifo_size;
 652         unsigned long max_wm;
 653         unsigned long default_wm;
 654         unsigned long guard_size;
 655         unsigned long cacheline_size;
 656 };
 657
 658 struct cxsr_latency {
 659         int is_desktop;
 660         int is_ddr3;
 661         unsigned long fsb_freq;
 662         unsigned long mem_freq;
 663         unsigned long display_sr;
 664         unsigned long display_hpll_disable;
 665         unsigned long cursor_sr;
 666         unsigned long cursor_hpll_disable;
 667 };
 668
 669 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 670 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 671 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 672 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 673 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 674 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 675 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 676 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 677 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 678
 679 struct intel_hdmi {
 680         u32 hdmi_reg;
 681         int ddc_bus;
 682         bool limited_color_range;
 683         bool color_range_auto;
 684         bool has_hdmi_sink;
 685         bool has_audio;
 686         enum hdmi_force_audio force_audio;
 687         bool rgb_quant_range_selectable;
 688         enum hdmi_picture_aspect aspect_ratio;
 689         struct intel_connector *attached_connector;
 690         void (*write_infoframe)(struct drm_encoder *encoder,
 691                                 enum hdmi_infoframe_type type,
 692                                 const void *frame, ssize_t len);
 693         void (*set_infoframes)(struct drm_encoder *encoder,
 694                                bool enable,
 695                                const struct drm_display_mode *adjusted_mode);
 696         bool (*infoframe_enabled)(struct drm_encoder *encoder);
 697 };
 698
 699 struct intel_dp_mst_encoder;
 700 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 701
 702 /*
 703  * enum link_m_n_set:
 704  *      When platform provides two set of M_N registers for dp, we can
 705  *      program them and switch between them incase of DRRS.
 706  *      But When only one such register is provided, we have to program the
 707  *      required divider value on that registers itself based on the DRRS state.
 708  *
 709  * M1_N1        : Program dp_m_n on M1_N1 registers
 710  *                        dp_m2_n2 on M2_N2 registers (If supported)
 711  *
 712  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
 713  *                        M2_N2 registers are not supported
 714  */
 715
 716 enum link_m_n_set {
 717         /* Sets the m1_n1 and m2_n2 */
 718         M1_N1 = 0,
 719         M2_N2
 720 };
 721
 722 struct sink_crc {
 723         bool started;
 724         u8 last_crc[6];
 725         int last_count;
 726 };
 727
 728 struct intel_dp {
 729         uint32_t output_reg;
 730         uint32_t aux_ch_ctl_reg;
 731         uint32_t DP;
 732         int link_rate;
 733         uint8_t lane_count;
 734         bool has_audio;
 735         enum hdmi_force_audio force_audio;
 736         bool limited_color_range;
 737         bool color_range_auto;
 738         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 739         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 740         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 741         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
 742         uint8_t num_sink_rates;
 743         int sink_rates[DP_MAX_SUPPORTED_RATES];
 744         struct sink_crc sink_crc;
 745         struct drm_dp_aux aux;
 746         uint8_t train_set[4];
 747         int panel_power_up_delay;
 748         int panel_power_down_delay;
 749         int panel_power_cycle_delay;
 750         int backlight_on_delay;
 751         int backlight_off_delay;
 752         struct delayed_work panel_vdd_work;
 753         bool want_panel_vdd;
 754         unsigned long last_power_cycle;
 755         unsigned long last_power_on;
 756         unsigned long last_backlight_off;
 757
 758         struct notifier_block edp_notifier;
 759
 760         /*
 761          * Pipe whose power sequencer is currently locked into
 762          * this port. Only relevant on VLV/CHV.
 763          */
 764         enum pipe pps_pipe;
 765         struct edp_power_seq pps_delays;
 766
 767         bool can_mst; /* this port supports mst */
 768         bool is_mst;
 769         int active_mst_links;
 770         /* connector directly attached - won't be use for modeset in mst world */
 771         struct intel_connector *attached_connector;
 772
 773         /* mst connector list */
 774         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
 775         struct drm_dp_mst_topology_mgr mst_mgr;
 776
 777         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 778         /*
 779          * This function returns the value we have to program the AUX_CTL
 780          * register with to kick off an AUX transaction.
 781          */
 782         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 783                                      bool has_aux_irq,
 784                                      int send_bytes,
 785                                      uint32_t aux_clock_divider);
 786
 787         /* Displayport compliance testing */
 788         unsigned long compliance_test_type;
 789         unsigned long compliance_test_data;
 790         bool compliance_test_active;
 791 };
 792
 793 struct intel_digital_port {
 794         struct intel_encoder base;
 795         enum port port;
 796         u32 saved_port_bits;
 797         struct intel_dp dp;
 798         struct intel_hdmi hdmi;
 799         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 800         bool release_cl2_override;
 801 };
 802
 803 struct intel_dp_mst_encoder {
 804         struct intel_encoder base;
 805         enum pipe pipe;
 806         struct intel_digital_port *primary;
 807         void *port; /* store this opaque as its illegal to dereference it */
 808 };
 809
 810 static inline enum dpio_channel
 811 vlv_dport_to_channel(struct intel_digital_port *dport)
 812 {
 813         switch (dport->port) {
 814         case PORT_B:
 815         case PORT_D:
 816                 return DPIO_CH0;
 817         case PORT_C:
 818                 return DPIO_CH1;
 819         default:
 820                 BUG();
 821         }
 822 }
 823
 824 static inline enum dpio_phy
 825 vlv_dport_to_phy(struct intel_digital_port *dport)
 826 {
 827         switch (dport->port) {
 828         case PORT_B:
 829         case PORT_C:
 830                 return DPIO_PHY0;
 831         case PORT_D:
 832                 return DPIO_PHY1;
 833         default:
 834                 BUG();
 835         }
 836 }
 837
 838 static inline enum dpio_channel
 839 vlv_pipe_to_channel(enum pipe pipe)
 840 {
 841         switch (pipe) {
 842         case PIPE_A:
 843         case PIPE_C:
 844                 return DPIO_CH0;
 845         case PIPE_B:
 846                 return DPIO_CH1;
 847         default:
 848                 BUG();
 849         }
 850 }
 851
 852 static inline struct drm_crtc *
 853 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 854 {
 855         struct drm_i915_private *dev_priv = dev->dev_private;
 856         return dev_priv->pipe_to_crtc_mapping[pipe];
 857 }
 858
 859 static inline struct drm_crtc *
 860 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 861 {
 862         struct drm_i915_private *dev_priv = dev->dev_private;
 863         return dev_priv->plane_to_crtc_mapping[plane];
 864 }
 865
 866 struct intel_unpin_work {
 867         struct work_struct work;
 868         struct drm_crtc *crtc;
 869         struct drm_framebuffer *old_fb;
 870         struct drm_i915_gem_object *pending_flip_obj;
 871         struct drm_pending_vblank_event *event;
 872         atomic_t pending;
 873 #define INTEL_FLIP_INACTIVE     0
 874 #define INTEL_FLIP_PENDING      1
 875 #define INTEL_FLIP_COMPLETE     2
 876         u32 flip_count;
 877         u32 gtt_offset;
 878         struct drm_i915_gem_request *flip_queued_req;
 879         u32 flip_queued_vblank;
 880         u32 flip_ready_vblank;
 881         bool enable_stall_check;
 882 };
 883
 884 struct intel_load_detect_pipe {
 885         struct drm_framebuffer *release_fb;
 886         bool load_detect_temp;
 887         int dpms_mode;
 888 };
 889
 890 static inline struct intel_encoder *
 891 intel_attached_encoder(struct drm_connector *connector)
 892 {
 893         return to_intel_connector(connector)->encoder;
 894 }
 895
 896 static inline struct intel_digital_port *
 897 enc_to_dig_port(struct drm_encoder *encoder)
 898 {
 899         return container_of(encoder, struct intel_digital_port, base.base);
 900 }
 901
 902 static inline struct intel_dp_mst_encoder *
 903 enc_to_mst(struct drm_encoder *encoder)
 904 {
 905         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
 906 }
 907
 908 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 909 {
 910         return &enc_to_dig_port(encoder)->dp;
 911 }
 912
 913 static inline struct intel_digital_port *
 914 dp_to_dig_port(struct intel_dp *intel_dp)
 915 {
 916         return container_of(intel_dp, struct intel_digital_port, dp);
 917 }
 918
 919 static inline struct intel_digital_port *
 920 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 921 {
 922         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 923 }
 924
 925 /*
 926  * Returns the number of planes for this pipe, ie the number of sprites + 1
 927  * (primary plane). This doesn't count the cursor plane then.
 928  */
 929 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
 930 {
 931         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
 932 }
 933
 934 /* intel_fifo_underrun.c */
 935 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 936                                            enum pipe pipe, bool enable);
 937 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 938                                            enum transcoder pch_transcoder,
 939                                            bool enable);
 940 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 941                                          enum pipe pipe);
 942 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 943                                          enum transcoder pch_transcoder);
 944 void i9xx_check_fifo_underruns(struct drm_i915_private *dev_priv);
 945
 946 /* i915_irq.c */
 947 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 948 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 949 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 950 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 951 void gen6_reset_rps_interrupts(struct drm_device *dev);
 952 void gen6_enable_rps_interrupts(struct drm_device *dev);
 953 void gen6_disable_rps_interrupts(struct drm_device *dev);
 954 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
 955 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
 956 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
 957 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
 958 {
 959         /*
 960          * We only use drm_irq_uninstall() at unload and VT switch, so
 961          * this is the only thing we need to check.
 962          */
 963         return dev_priv->pm.irqs_enabled;
 964 }
 965
 966 int intel_get_crtc_scanline(struct intel_crtc *crtc);
 967 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
 968                                      unsigned int pipe_mask);
 969
 970 /* intel_crt.c */
 971 void intel_crt_init(struct drm_device *dev);
 972
 973
 974 /* intel_ddi.c */
 975 void intel_prepare_ddi(struct drm_device *dev);
 976 void hsw_fdi_link_train(struct drm_crtc *crtc);
 977 void intel_ddi_init(struct drm_device *dev, enum port port);
 978 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
 979 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
 980 void intel_ddi_pll_init(struct drm_device *dev);
 981 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 982 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
 983                                        enum transcoder cpu_transcoder);
 984 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
 985 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
 986 bool intel_ddi_pll_select(struct intel_crtc *crtc,
 987                           struct intel_crtc_state *crtc_state);
 988 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 989 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
 990 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 991 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 992 void intel_ddi_get_config(struct intel_encoder *encoder,
 993                           struct intel_crtc_state *pipe_config);
 994 struct intel_encoder *
 995 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
 996
 997 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
 998 void intel_ddi_clock_get(struct intel_encoder *encoder,
 999                          struct intel_crtc_state *pipe_config);
1000 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
1001 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1002
1003 /* intel_frontbuffer.c */
1004 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
1005                              enum fb_op_origin origin);
1006 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
1007                                     unsigned frontbuffer_bits);
1008 void intel_frontbuffer_flip_complete(struct drm_device *dev,
1009                                      unsigned frontbuffer_bits);
1010 void intel_frontbuffer_flip(struct drm_device *dev,
1011                             unsigned frontbuffer_bits);
1012 unsigned int intel_fb_align_height(struct drm_device *dev,
1013                                    unsigned int height,
1014                                    uint32_t pixel_format,
1015                                    uint64_t fb_format_modifier);
1016 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
1017                         enum fb_op_origin origin);
1018 u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
1019                               uint32_t pixel_format);
1020
1021 /* intel_audio.c */
1022 void intel_init_audio(struct drm_device *dev);
1023 void intel_audio_codec_enable(struct intel_encoder *encoder);
1024 void intel_audio_codec_disable(struct intel_encoder *encoder);
1025 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1026 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1027
1028 /* intel_display.c */
1029 extern const struct drm_plane_funcs intel_plane_funcs;
1030 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1031 int intel_pch_rawclk(struct drm_device *dev);
1032 int intel_hrawclk(struct drm_device *dev);
1033 void intel_mark_busy(struct drm_device *dev);
1034 void intel_mark_idle(struct drm_device *dev);
1035 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1036 int intel_display_suspend(struct drm_device *dev);
1037 void intel_encoder_destroy(struct drm_encoder *encoder);
1038 int intel_connector_init(struct intel_connector *);
1039 struct intel_connector *intel_connector_alloc(void);
1040 bool intel_connector_get_hw_state(struct intel_connector *connector);
1041 void intel_connector_attach_encoder(struct intel_connector *connector,
1042                                     struct intel_encoder *encoder);
1043 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
1044 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1045                                              struct drm_crtc *crtc);
1046 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1047 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1048                                 struct drm_file *file_priv);
1049 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1050                                              enum pipe pipe);
1051 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
1052 static inline void
1053 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1054 {
1055         drm_wait_one_vblank(dev, pipe);
1056 }
1057 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1058 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1059                          struct intel_digital_port *dport,
1060                          unsigned int expected_mask);
1061 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1062                                 struct drm_display_mode *mode,
1063                                 struct intel_load_detect_pipe *old,
1064                                 struct drm_modeset_acquire_ctx *ctx);
1065 void intel_release_load_detect_pipe(struct drm_connector *connector,
1066                                     struct intel_load_detect_pipe *old,
1067                                     struct drm_modeset_acquire_ctx *ctx);
1068 int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
1069                                struct drm_framebuffer *fb,
1070                                const struct drm_plane_state *plane_state,
1071                                struct intel_engine_cs *pipelined,
1072                                struct drm_i915_gem_request **pipelined_request);
1073 struct drm_framebuffer *
1074 __intel_framebuffer_create(struct drm_device *dev,
1075                            struct drm_mode_fb_cmd2 *mode_cmd,
1076                            struct drm_i915_gem_object *obj);
1077 void intel_prepare_page_flip(struct drm_device *dev, int plane);
1078 void intel_finish_page_flip(struct drm_device *dev, int pipe);
1079 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
1080 void intel_check_page_flip(struct drm_device *dev, int pipe);
1081 int intel_prepare_plane_fb(struct drm_plane *plane,
1082                            const struct drm_plane_state *new_state);
1083 void intel_cleanup_plane_fb(struct drm_plane *plane,
1084                             const struct drm_plane_state *old_state);
1085 int intel_plane_atomic_get_property(struct drm_plane *plane,
1086                                     const struct drm_plane_state *state,
1087                                     struct drm_property *property,
1088                                     uint64_t *val);
1089 int intel_plane_atomic_set_property(struct drm_plane *plane,
1090                                     struct drm_plane_state *state,
1091                                     struct drm_property *property,
1092                                     uint64_t val);
1093 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1094                                     struct drm_plane_state *plane_state);
1095
1096 unsigned int
1097 intel_tile_height(struct drm_device *dev, uint32_t pixel_format,
1098                   uint64_t fb_format_modifier, unsigned int plane);
1099
1100 static inline bool
1101 intel_rotation_90_or_270(unsigned int rotation)
1102 {
1103         return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
1104 }
1105
1106 void intel_create_rotation_property(struct drm_device *dev,
1107                                         struct intel_plane *plane);
1108
1109 /* shared dpll functions */
1110 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
1111 void assert_shared_dpll(struct drm_i915_private *dev_priv,
1112                         struct intel_shared_dpll *pll,
1113                         bool state);
1114 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
1115 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
1116 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
1117                                                 struct intel_crtc_state *state);
1118
1119 void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
1120                       const struct dpll *dpll);
1121 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
1122
1123 /* modesetting asserts */
1124 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1125                            enum pipe pipe);
1126 void assert_pll(struct drm_i915_private *dev_priv,
1127                 enum pipe pipe, bool state);
1128 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1129 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1130 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1131                        enum pipe pipe, bool state);
1132 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1133 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1134 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1135 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1136 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1137 unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv,
1138                                              int *x, int *y,
1139                                              unsigned int tiling_mode,
1140                                              unsigned int bpp,
1141                                              unsigned int pitch);
1142 void intel_prepare_reset(struct drm_device *dev);
1143 void intel_finish_reset(struct drm_device *dev);
1144 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1145 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1146 void broxton_init_cdclk(struct drm_device *dev);
1147 void broxton_uninit_cdclk(struct drm_device *dev);
1148 void broxton_ddi_phy_init(struct drm_device *dev);
1149 void broxton_ddi_phy_uninit(struct drm_device *dev);
1150 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1151 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1152 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1153 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1154 void intel_dp_get_m_n(struct intel_crtc *crtc,
1155                       struct intel_crtc_state *pipe_config);
1156 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1157 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1158 void
1159 ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
1160                                 int dotclock);
1161 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1162                         intel_clock_t *best_clock);
1163 int chv_calc_dpll_params(int refclk, intel_clock_t *pll_clock);
1164
1165 bool intel_crtc_active(struct drm_crtc *crtc);
1166 void hsw_enable_ips(struct intel_crtc *crtc);
1167 void hsw_disable_ips(struct intel_crtc *crtc);
1168 enum intel_display_power_domain
1169 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1170 enum intel_display_power_domain
1171 intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder);
1172 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1173                                  struct intel_crtc_state *pipe_config);
1174 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
1175 void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
1176
1177 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1178 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1179
1180 u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
1181                            struct drm_i915_gem_object *obj,
1182                            unsigned int plane);
1183
1184 u32 skl_plane_ctl_format(uint32_t pixel_format);
1185 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1186 u32 skl_plane_ctl_rotation(unsigned int rotation);
1187
1188 /* intel_csr.c */
1189 void intel_csr_ucode_init(struct drm_device *dev);
1190 enum csr_state intel_csr_load_status_get(struct drm_i915_private *dev_priv);
1191 void intel_csr_load_status_set(struct drm_i915_private *dev_priv,
1192                                         enum csr_state state);
1193 void intel_csr_load_program(struct drm_device *dev);
1194 void intel_csr_ucode_fini(struct drm_device *dev);
1195 void assert_csr_loaded(struct drm_i915_private *dev_priv);
1196
1197 /* intel_dp.c */
1198 bool intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
1199 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1200                              struct intel_connector *intel_connector);
1201 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1202                               const struct intel_crtc_state *pipe_config);
1203 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1204 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1205 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1206 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1207 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1208 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1209 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1210 bool intel_dp_compute_config(struct intel_encoder *encoder,
1211                              struct intel_crtc_state *pipe_config);
1212 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1213 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1214                                   bool long_hpd);
1215 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1216 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1217 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1218 void intel_edp_panel_on(struct intel_dp *intel_dp);
1219 void intel_edp_panel_off(struct intel_dp *intel_dp);
1220 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1221 void intel_dp_mst_suspend(struct drm_device *dev);
1222 void intel_dp_mst_resume(struct drm_device *dev);
1223 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1224 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1225 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1226 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1227 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1228 void intel_plane_destroy(struct drm_plane *plane);
1229 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1230 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1231 void intel_edp_drrs_invalidate(struct drm_device *dev,
1232                 unsigned frontbuffer_bits);
1233 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1234 bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
1235                                          struct intel_digital_port *port);
1236 void hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config);
1237
1238 /* intel_dp_mst.c */
1239 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1240 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1241 /* intel_dsi.c */
1242 void intel_dsi_init(struct drm_device *dev);
1243
1244
1245 /* intel_dvo.c */
1246 void intel_dvo_init(struct drm_device *dev);
1247
1248
1249 /* legacy fbdev emulation in intel_fbdev.c */
1250 #ifdef CONFIG_DRM_FBDEV_EMULATION
1251 extern int intel_fbdev_init(struct drm_device *dev);
1252 extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
1253 extern void intel_fbdev_fini(struct drm_device *dev);
1254 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1255 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1256 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1257 #else
1258 static inline int intel_fbdev_init(struct drm_device *dev)
1259 {
1260         return 0;
1261 }
1262
1263 static inline void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
1264 {
1265 }
1266
1267 static inline void intel_fbdev_fini(struct drm_device *dev)
1268 {
1269 }
1270
1271 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1272 {
1273 }
1274
1275 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1276 {
1277 }
1278 #endif
1279
1280 /* intel_fbc.c */
1281 bool intel_fbc_enabled(struct drm_i915_private *dev_priv);
1282 void intel_fbc_update(struct drm_i915_private *dev_priv);
1283 void intel_fbc_init(struct drm_i915_private *dev_priv);
1284 void intel_fbc_disable(struct drm_i915_private *dev_priv);
1285 void intel_fbc_disable_crtc(struct intel_crtc *crtc);
1286 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1287                           unsigned int frontbuffer_bits,
1288                           enum fb_op_origin origin);
1289 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1290                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1291 const char *intel_no_fbc_reason_str(enum no_fbc_reason reason);
1292 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1293
1294 /* intel_hdmi.c */
1295 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
1296 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1297                                struct intel_connector *intel_connector);
1298 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1299 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1300                                struct intel_crtc_state *pipe_config);
1301
1302
1303 /* intel_lvds.c */
1304 void intel_lvds_init(struct drm_device *dev);
1305 bool intel_is_dual_link_lvds(struct drm_device *dev);
1306
1307
1308 /* intel_modes.c */
1309 int intel_connector_update_modes(struct drm_connector *connector,
1310                                  struct edid *edid);
1311 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1312 void intel_attach_force_audio_property(struct drm_connector *connector);
1313 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1314 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1315
1316
1317 /* intel_overlay.c */
1318 void intel_setup_overlay(struct drm_device *dev);
1319 void intel_cleanup_overlay(struct drm_device *dev);
1320 int intel_overlay_switch_off(struct intel_overlay *overlay);
1321 int intel_overlay_put_image(struct drm_device *dev, void *data,
1322                             struct drm_file *file_priv);
1323 int intel_overlay_attrs(struct drm_device *dev, void *data,
1324                         struct drm_file *file_priv);
1325 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1326
1327
1328 /* intel_panel.c */
1329 int intel_panel_init(struct intel_panel *panel,
1330                      struct drm_display_mode *fixed_mode,
1331                      struct drm_display_mode *downclock_mode);
1332 void intel_panel_fini(struct intel_panel *panel);
1333 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1334                             struct drm_display_mode *adjusted_mode);
1335 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1336                              struct intel_crtc_state *pipe_config,
1337                              int fitting_mode);
1338 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1339                               struct intel_crtc_state *pipe_config,
1340                               int fitting_mode);
1341 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1342                                     u32 level, u32 max);
1343 int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe);
1344 void intel_panel_enable_backlight(struct intel_connector *connector);
1345 void intel_panel_disable_backlight(struct intel_connector *connector);
1346 void intel_panel_destroy_backlight(struct drm_connector *connector);
1347 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1348 extern struct drm_display_mode *intel_find_panel_downclock(
1349                                 struct drm_device *dev,
1350                                 struct drm_display_mode *fixed_mode,
1351                                 struct drm_connector *connector);
1352 void intel_backlight_register(struct drm_device *dev);
1353 void intel_backlight_unregister(struct drm_device *dev);
1354
1355
1356 /* intel_psr.c */
1357 void intel_psr_enable(struct intel_dp *intel_dp);
1358 void intel_psr_disable(struct intel_dp *intel_dp);
1359 void intel_psr_invalidate(struct drm_device *dev,
1360                           unsigned frontbuffer_bits);
1361 void intel_psr_flush(struct drm_device *dev,
1362                      unsigned frontbuffer_bits,
1363                      enum fb_op_origin origin);
1364 void intel_psr_init(struct drm_device *dev);
1365 void intel_psr_single_frame_update(struct drm_device *dev,
1366                                    unsigned frontbuffer_bits);
1367
1368 /* intel_runtime_pm.c */
1369 int intel_power_domains_init(struct drm_i915_private *);
1370 void intel_power_domains_fini(struct drm_i915_private *);
1371 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
1372 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1373
1374 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1375                                     enum intel_display_power_domain domain);
1376 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1377                                       enum intel_display_power_domain domain);
1378 void intel_display_power_get(struct drm_i915_private *dev_priv,
1379                              enum intel_display_power_domain domain);
1380 void intel_display_power_put(struct drm_i915_private *dev_priv,
1381                              enum intel_display_power_domain domain);
1382 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1383 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1384 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1385
1386 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1387
1388 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1389                              bool override, unsigned int mask);
1390 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1391                           enum dpio_channel ch, bool override);
1392
1393
1394 /* intel_pm.c */
1395 void intel_init_clock_gating(struct drm_device *dev);
1396 void intel_suspend_hw(struct drm_device *dev);
1397 int ilk_wm_max_level(const struct drm_device *dev);
1398 void intel_update_watermarks(struct drm_crtc *crtc);
1399 void intel_update_sprite_watermarks(struct drm_plane *plane,
1400                                     struct drm_crtc *crtc,
1401                                     uint32_t sprite_width,
1402                                     uint32_t sprite_height,
1403                                     int pixel_size,
1404                                     bool enabled, bool scaled);
1405 void intel_init_pm(struct drm_device *dev);
1406 void intel_pm_setup(struct drm_device *dev);
1407 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1408 void intel_gpu_ips_teardown(void);
1409 void intel_init_gt_powersave(struct drm_device *dev);
1410 void intel_cleanup_gt_powersave(struct drm_device *dev);
1411 void intel_enable_gt_powersave(struct drm_device *dev);
1412 void intel_disable_gt_powersave(struct drm_device *dev);
1413 void intel_suspend_gt_powersave(struct drm_device *dev);
1414 void intel_reset_gt_powersave(struct drm_device *dev);
1415 void gen6_update_ring_freq(struct drm_device *dev);
1416 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1417 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1418 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1419 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1420                     struct intel_rps_client *rps,
1421                     unsigned long submitted);
1422 void intel_queue_rps_boost_for_request(struct drm_device *dev,
1423                                        struct drm_i915_gem_request *req);
1424 void vlv_wm_get_hw_state(struct drm_device *dev);
1425 void ilk_wm_get_hw_state(struct drm_device *dev);
1426 void skl_wm_get_hw_state(struct drm_device *dev);
1427 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1428                           struct skl_ddb_allocation *ddb /* out */);
1429 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1430
1431 /* intel_sdvo.c */
1432 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1433
1434
1435 /* intel_sprite.c */
1436 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1437 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1438                               struct drm_file *file_priv);
1439 void intel_pipe_update_start(struct intel_crtc *crtc);
1440 void intel_pipe_update_end(struct intel_crtc *crtc);
1441
1442 /* intel_tv.c */
1443 void intel_tv_init(struct drm_device *dev);
1444
1445 /* intel_atomic.c */
1446 int intel_connector_atomic_get_property(struct drm_connector *connector,
1447                                         const struct drm_connector_state *state,
1448                                         struct drm_property *property,
1449                                         uint64_t *val);
1450 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1451 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1452                                struct drm_crtc_state *state);
1453 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1454 void intel_atomic_state_clear(struct drm_atomic_state *);
1455 struct intel_shared_dpll_config *
1456 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1457
1458 static inline struct intel_crtc_state *
1459 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1460                             struct intel_crtc *crtc)
1461 {
1462         struct drm_crtc_state *crtc_state;
1463         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1464         if (IS_ERR(crtc_state))
1465                 return ERR_CAST(crtc_state);
1466
1467         return to_intel_crtc_state(crtc_state);
1468 }
1469 int intel_atomic_setup_scalers(struct drm_device *dev,
1470         struct intel_crtc *intel_crtc,
1471         struct intel_crtc_state *crtc_state);
1472
1473 /* intel_atomic_plane.c */
1474 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1475 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1476 void intel_plane_destroy_state(struct drm_plane *plane,
1477                                struct drm_plane_state *state);
1478 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1479
1480 #endif /* __INTEL_DRV_H__ */