drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <[email protected]>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <[email protected]>
   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         int preferred_bpp;
 127 };
 128
 129 struct intel_encoder {
 130         struct drm_encoder base;
 131
 132         enum intel_output_type type;
 133         unsigned int cloneable;
 134         void (*hot_plug)(struct intel_encoder *);
 135         bool (*compute_config)(struct intel_encoder *,
 136                                struct intel_crtc_state *);
 137         void (*pre_pll_enable)(struct intel_encoder *);
 138         void (*pre_enable)(struct intel_encoder *);
 139         void (*enable)(struct intel_encoder *);
 140         void (*mode_set)(struct intel_encoder *intel_encoder);
 141         void (*disable)(struct intel_encoder *);
 142         void (*post_disable)(struct intel_encoder *);
 143         void (*post_pll_disable)(struct intel_encoder *);
 144         /* Read out the current hw state of this connector, returning true if
 145          * the encoder is active. If the encoder is enabled it also set the pipe
 146          * it is connected to in the pipe parameter. */
 147         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 148         /* Reconstructs the equivalent mode flags for the current hardware
 149          * state. This must be called _after_ display->get_pipe_config has
 150          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 151          * be set correctly before calling this function. */
 152         void (*get_config)(struct intel_encoder *,
 153                            struct intel_crtc_state *pipe_config);
 154         /*
 155          * Called during system suspend after all pending requests for the
 156          * encoder are flushed (for example for DP AUX transactions) and
 157          * device interrupts are disabled.
 158          */
 159         void (*suspend)(struct intel_encoder *);
 160         int crtc_mask;
 161         enum hpd_pin hpd_pin;
 162 };
 163
 164 struct intel_panel {
 165         struct drm_display_mode *fixed_mode;
 166         struct drm_display_mode *downclock_mode;
 167         int fitting_mode;
 168
 169         /* backlight */
 170         struct {
 171                 bool present;
 172                 u32 level;
 173                 u32 min;
 174                 u32 max;
 175                 bool enabled;
 176                 bool combination_mode;  /* gen 2/4 only */
 177                 bool active_low_pwm;
 178
 179                 /* PWM chip */
 180                 bool util_pin_active_low;       /* bxt+ */
 181                 u8 controller;          /* bxt+ only */
 182                 struct pwm_device *pwm;
 183
 184                 struct backlight_device *device;
 185
 186                 /* Connector and platform specific backlight functions */
 187                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 188                 uint32_t (*get)(struct intel_connector *connector);
 189                 void (*set)(struct intel_connector *connector, uint32_t level);
 190                 void (*disable)(struct intel_connector *connector);
 191                 void (*enable)(struct intel_connector *connector);
 192                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 193                                       uint32_t hz);
 194                 void (*power)(struct intel_connector *, bool enable);
 195         } backlight;
 196 };
 197
 198 struct intel_connector {
 199         struct drm_connector base;
 200         /*
 201          * The fixed encoder this connector is connected to.
 202          */
 203         struct intel_encoder *encoder;
 204
 205         /* Reads out the current hw, returning true if the connector is enabled
 206          * and active (i.e. dpms ON state). */
 207         bool (*get_hw_state)(struct intel_connector *);
 208
 209         /*
 210          * Removes all interfaces through which the connector is accessible
 211          * - like sysfs, debugfs entries -, so that no new operations can be
 212          * started on the connector. Also makes sure all currently pending
 213          * operations finish before returing.
 214          */
 215         void (*unregister)(struct intel_connector *);
 216
 217         /* Panel info for eDP and LVDS */
 218         struct intel_panel panel;
 219
 220         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 221         struct edid *edid;
 222         struct edid *detect_edid;
 223
 224         /* since POLL and HPD connectors may use the same HPD line keep the native
 225            state of connector->polled in case hotplug storm detection changes it */
 226         u8 polled;
 227
 228         void *port; /* store this opaque as its illegal to dereference it */
 229
 230         struct intel_dp *mst_port;
 231 };
 232
 233 typedef struct dpll {
 234         /* given values */
 235         int n;
 236         int m1, m2;
 237         int p1, p2;
 238         /* derived values */
 239         int     dot;
 240         int     vco;
 241         int     m;
 242         int     p;
 243 } intel_clock_t;
 244
 245 struct intel_atomic_state {
 246         struct drm_atomic_state base;
 247
 248         unsigned int cdclk;
 249
 250         /*
 251          * Calculated device cdclk, can be different from cdclk
 252          * only when all crtc's are DPMS off.
 253          */
 254         unsigned int dev_cdclk;
 255
 256         bool dpll_set, modeset;
 257
 258         unsigned int active_crtcs;
 259         unsigned int min_pixclk[I915_MAX_PIPES];
 260
 261         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
 262         struct intel_wm_config wm_config;
 263 };
 264
 265 struct intel_plane_state {
 266         struct drm_plane_state base;
 267         struct drm_rect src;
 268         struct drm_rect dst;
 269         struct drm_rect clip;
 270         bool visible;
 271
 272         /*
 273          * scaler_id
 274          *    = -1 : not using a scaler
 275          *    >=  0 : using a scalers
 276          *
 277          * plane requiring a scaler:
 278          *   - During check_plane, its bit is set in
 279          *     crtc_state->scaler_state.scaler_users by calling helper function
 280          *     update_scaler_plane.
 281          *   - scaler_id indicates the scaler it got assigned.
 282          *
 283          * plane doesn't require a scaler:
 284          *   - this can happen when scaling is no more required or plane simply
 285          *     got disabled.
 286          *   - During check_plane, corresponding bit is reset in
 287          *     crtc_state->scaler_state.scaler_users by calling helper function
 288          *     update_scaler_plane.
 289          */
 290         int scaler_id;
 291
 292         struct drm_intel_sprite_colorkey ckey;
 293
 294         /* async flip related structures */
 295         struct drm_i915_gem_request *wait_req;
 296 };
 297
 298 struct intel_initial_plane_config {
 299         struct intel_framebuffer *fb;
 300         unsigned int tiling;
 301         int size;
 302         u32 base;
 303 };
 304
 305 #define SKL_MIN_SRC_W 8
 306 #define SKL_MAX_SRC_W 4096
 307 #define SKL_MIN_SRC_H 8
 308 #define SKL_MAX_SRC_H 4096
 309 #define SKL_MIN_DST_W 8
 310 #define SKL_MAX_DST_W 4096
 311 #define SKL_MIN_DST_H 8
 312 #define SKL_MAX_DST_H 4096
 313
 314 struct intel_scaler {
 315         int in_use;
 316         uint32_t mode;
 317 };
 318
 319 struct intel_crtc_scaler_state {
 320 #define SKL_NUM_SCALERS 2
 321         struct intel_scaler scalers[SKL_NUM_SCALERS];
 322
 323         /*
 324          * scaler_users: keeps track of users requesting scalers on this crtc.
 325          *
 326          *     If a bit is set, a user is using a scaler.
 327          *     Here user can be a plane or crtc as defined below:
 328          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 329          *       bit 31    - crtc
 330          *
 331          * Instead of creating a new index to cover planes and crtc, using
 332          * existing drm_plane_index for planes which is well less than 31
 333          * planes and bit 31 for crtc. This should be fine to cover all
 334          * our platforms.
 335          *
 336          * intel_atomic_setup_scalers will setup available scalers to users
 337          * requesting scalers. It will gracefully fail if request exceeds
 338          * avilability.
 339          */
 340 #define SKL_CRTC_INDEX 31
 341         unsigned scaler_users;
 342
 343         /* scaler used by crtc for panel fitting purpose */
 344         int scaler_id;
 345 };
 346
 347 /* drm_mode->private_flags */
 348 #define I915_MODE_FLAG_INHERITED 1
 349
 350 struct intel_pipe_wm {
 351         struct intel_wm_level wm[5];
 352         uint32_t linetime;
 353         bool fbc_wm_enabled;
 354         bool pipe_enabled;
 355         bool sprites_enabled;
 356         bool sprites_scaled;
 357 };
 358
 359 struct skl_pipe_wm {
 360         struct skl_wm_level wm[8];
 361         struct skl_wm_level trans_wm;
 362         uint32_t linetime;
 363 };
 364
 365 struct intel_crtc_state {
 366         struct drm_crtc_state base;
 367
 368         /**
 369          * quirks - bitfield with hw state readout quirks
 370          *
 371          * For various reasons the hw state readout code might not be able to
 372          * completely faithfully read out the current state. These cases are
 373          * tracked with quirk flags so that fastboot and state checker can act
 374          * accordingly.
 375          */
 376 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 377         unsigned long quirks;
 378
 379         bool update_pipe; /* can a fast modeset be performed? */
 380         bool disable_cxsr;
 381         bool wm_changed; /* watermarks are updated */
 382         bool fb_changed; /* fb on any of the planes is changed */
 383
 384         /* Pipe source size (ie. panel fitter input size)
 385          * All planes will be positioned inside this space,
 386          * and get clipped at the edges. */
 387         int pipe_src_w, pipe_src_h;
 388
 389         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 390          * between pch encoders and cpu encoders. */
 391         bool has_pch_encoder;
 392
 393         /* Are we sending infoframes on the attached port */
 394         bool has_infoframe;
 395
 396         /* CPU Transcoder for the pipe. Currently this can only differ from the
 397          * pipe on Haswell (where we have a special eDP transcoder). */
 398         enum transcoder cpu_transcoder;
 399
 400         /*
 401          * Use reduced/limited/broadcast rbg range, compressing from the full
 402          * range fed into the crtcs.
 403          */
 404         bool limited_color_range;
 405
 406         /* DP has a bunch of special case unfortunately, so mark the pipe
 407          * accordingly. */
 408         bool has_dp_encoder;
 409
 410         /* DSI has special cases */
 411         bool has_dsi_encoder;
 412
 413         /* Whether we should send NULL infoframes. Required for audio. */
 414         bool has_hdmi_sink;
 415
 416         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 417          * has_dp_encoder is set. */
 418         bool has_audio;
 419
 420         /*
 421          * Enable dithering, used when the selected pipe bpp doesn't match the
 422          * plane bpp.
 423          */
 424         bool dither;
 425
 426         /* Controls for the clock computation, to override various stages. */
 427         bool clock_set;
 428
 429         /* SDVO TV has a bunch of special case. To make multifunction encoders
 430          * work correctly, we need to track this at runtime.*/
 431         bool sdvo_tv_clock;
 432
 433         /*
 434          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 435          * required. This is set in the 2nd loop of calling encoder's
 436          * ->compute_config if the first pick doesn't work out.
 437          */
 438         bool bw_constrained;
 439
 440         /* Settings for the intel dpll used on pretty much everything but
 441          * haswell. */
 442         struct dpll dpll;
 443
 444         /* Selected dpll when shared or DPLL_ID_PRIVATE. */
 445         enum intel_dpll_id shared_dpll;
 446
 447         /*
 448          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
 449          * - enum skl_dpll on SKL
 450          */
 451         uint32_t ddi_pll_sel;
 452
 453         /* Actual register state of the dpll, for shared dpll cross-checking. */
 454         struct intel_dpll_hw_state dpll_hw_state;
 455
 456         int pipe_bpp;
 457         struct intel_link_m_n dp_m_n;
 458
 459         /* m2_n2 for eDP downclock */
 460         struct intel_link_m_n dp_m2_n2;
 461         bool has_drrs;
 462
 463         /*
 464          * Frequence the dpll for the port should run at. Differs from the
 465          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 466          * already multiplied by pixel_multiplier.
 467          */
 468         int port_clock;
 469
 470         /* Used by SDVO (and if we ever fix it, HDMI). */
 471         unsigned pixel_multiplier;
 472
 473         uint8_t lane_count;
 474
 475         /* Panel fitter controls for gen2-gen4 + VLV */
 476         struct {
 477                 u32 control;
 478                 u32 pgm_ratios;
 479                 u32 lvds_border_bits;
 480         } gmch_pfit;
 481
 482         /* Panel fitter placement and size for Ironlake+ */
 483         struct {
 484                 u32 pos;
 485                 u32 size;
 486                 bool enabled;
 487                 bool force_thru;
 488         } pch_pfit;
 489
 490         /* FDI configuration, only valid if has_pch_encoder is set. */
 491         int fdi_lanes;
 492         struct intel_link_m_n fdi_m_n;
 493
 494         bool ips_enabled;
 495
 496         bool enable_fbc;
 497
 498         bool double_wide;
 499
 500         bool dp_encoder_is_mst;
 501         int pbn;
 502
 503         struct intel_crtc_scaler_state scaler_state;
 504
 505         /* w/a for waiting 2 vblanks during crtc enable */
 506         enum pipe hsw_workaround_pipe;
 507
 508         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 509         bool disable_lp_wm;
 510
 511         struct {
 512                 /*
 513                  * optimal watermarks, programmed post-vblank when this state
 514                  * is committed
 515                  */
 516                 union {
 517                         struct intel_pipe_wm ilk;
 518                         struct skl_pipe_wm skl;
 519                 } optimal;
 520         } wm;
 521 };
 522
 523 struct vlv_wm_state {
 524         struct vlv_pipe_wm wm[3];
 525         struct vlv_sr_wm sr[3];
 526         uint8_t num_active_planes;
 527         uint8_t num_levels;
 528         uint8_t level;
 529         bool cxsr;
 530 };
 531
 532 struct intel_mmio_flip {
 533         struct work_struct work;
 534         struct drm_i915_private *i915;
 535         struct drm_i915_gem_request *req;
 536         struct intel_crtc *crtc;
 537         unsigned int rotation;
 538 };
 539
 540 /*
 541  * Tracking of operations that need to be performed at the beginning/end of an
 542  * atomic commit, outside the atomic section where interrupts are disabled.
 543  * These are generally operations that grab mutexes or might otherwise sleep
 544  * and thus can't be run with interrupts disabled.
 545  */
 546 struct intel_crtc_atomic_commit {
 547         /* Sleepable operations to perform before commit */
 548
 549         /* Sleepable operations to perform after commit */
 550         unsigned fb_bits;
 551         bool post_enable_primary;
 552
 553         /* Sleepable operations to perform before and after commit */
 554         bool update_fbc;
 555 };
 556
 557 struct intel_crtc {
 558         struct drm_crtc base;
 559         enum pipe pipe;
 560         enum plane plane;
 561         u8 lut_r[256], lut_g[256], lut_b[256];
 562         /*
 563          * Whether the crtc and the connected output pipeline is active. Implies
 564          * that crtc->enabled is set, i.e. the current mode configuration has
 565          * some outputs connected to this crtc.
 566          */
 567         bool active;
 568         unsigned long enabled_power_domains;
 569         bool lowfreq_avail;
 570         struct intel_overlay *overlay;
 571         struct intel_unpin_work *unpin_work;
 572
 573         atomic_t unpin_work_count;
 574
 575         /* Display surface base address adjustement for pageflips. Note that on
 576          * gen4+ this only adjusts up to a tile, offsets within a tile are
 577          * handled in the hw itself (with the TILEOFF register). */
 578         u32 dspaddr_offset;
 579         int adjusted_x;
 580         int adjusted_y;
 581
 582         uint32_t cursor_addr;
 583         uint32_t cursor_cntl;
 584         uint32_t cursor_size;
 585         uint32_t cursor_base;
 586
 587         struct intel_crtc_state *config;
 588
 589         /* reset counter value when the last flip was submitted */
 590         unsigned int reset_counter;
 591
 592         /* Access to these should be protected by dev_priv->irq_lock. */
 593         bool cpu_fifo_underrun_disabled;
 594         bool pch_fifo_underrun_disabled;
 595
 596         /* per-pipe watermark state */
 597         struct {
 598                 /* watermarks currently being used  */
 599                 union {
 600                         struct intel_pipe_wm ilk;
 601                         struct skl_pipe_wm skl;
 602                 } active;
 603                 /* allow CxSR on this pipe */
 604                 bool cxsr_allowed;
 605         } wm;
 606
 607         int scanline_offset;
 608
 609         struct {
 610                 unsigned start_vbl_count;
 611                 ktime_t start_vbl_time;
 612                 int min_vbl, max_vbl;
 613                 int scanline_start;
 614         } debug;
 615
 616         struct intel_crtc_atomic_commit atomic;
 617
 618         /* scalers available on this crtc */
 619         int num_scalers;
 620
 621         struct vlv_wm_state wm_state;
 622 };
 623
 624 struct intel_plane_wm_parameters {
 625         uint32_t horiz_pixels;
 626         uint32_t vert_pixels;
 627         /*
 628          *   For packed pixel formats:
 629          *     bytes_per_pixel - holds bytes per pixel
 630          *   For planar pixel formats:
 631          *     bytes_per_pixel - holds bytes per pixel for uv-plane
 632          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
 633          */
 634         uint8_t bytes_per_pixel;
 635         uint8_t y_bytes_per_pixel;
 636         bool enabled;
 637         bool scaled;
 638         u64 tiling;
 639         unsigned int rotation;
 640         uint16_t fifo_size;
 641 };
 642
 643 struct intel_plane {
 644         struct drm_plane base;
 645         int plane;
 646         enum pipe pipe;
 647         bool can_scale;
 648         int max_downscale;
 649         uint32_t frontbuffer_bit;
 650
 651         /* Since we need to change the watermarks before/after
 652          * enabling/disabling the planes, we need to store the parameters here
 653          * as the other pieces of the struct may not reflect the values we want
 654          * for the watermark calculations. Currently only Haswell uses this.
 655          */
 656         struct intel_plane_wm_parameters wm;
 657
 658         /*
 659          * NOTE: Do not place new plane state fields here (e.g., when adding
 660          * new plane properties).  New runtime state should now be placed in
 661          * the intel_plane_state structure and accessed via plane_state.
 662          */
 663
 664         void (*update_plane)(struct drm_plane *plane,
 665                              const struct intel_crtc_state *crtc_state,
 666                              const struct intel_plane_state *plane_state);
 667         void (*disable_plane)(struct drm_plane *plane,
 668                               struct drm_crtc *crtc);
 669         int (*check_plane)(struct drm_plane *plane,
 670                            struct intel_crtc_state *crtc_state,
 671                            struct intel_plane_state *state);
 672 };
 673
 674 struct intel_watermark_params {
 675         unsigned long fifo_size;
 676         unsigned long max_wm;
 677         unsigned long default_wm;
 678         unsigned long guard_size;
 679         unsigned long cacheline_size;
 680 };
 681
 682 struct cxsr_latency {
 683         int is_desktop;
 684         int is_ddr3;
 685         unsigned long fsb_freq;
 686         unsigned long mem_freq;
 687         unsigned long display_sr;
 688         unsigned long display_hpll_disable;
 689         unsigned long cursor_sr;
 690         unsigned long cursor_hpll_disable;
 691 };
 692
 693 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 694 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 695 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 696 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 697 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 698 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 699 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 700 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 701 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 702
 703 struct intel_hdmi {
 704         i915_reg_t hdmi_reg;
 705         int ddc_bus;
 706         bool limited_color_range;
 707         bool color_range_auto;
 708         bool has_hdmi_sink;
 709         bool has_audio;
 710         enum hdmi_force_audio force_audio;
 711         bool rgb_quant_range_selectable;
 712         enum hdmi_picture_aspect aspect_ratio;
 713         struct intel_connector *attached_connector;
 714         void (*write_infoframe)(struct drm_encoder *encoder,
 715                                 enum hdmi_infoframe_type type,
 716                                 const void *frame, ssize_t len);
 717         void (*set_infoframes)(struct drm_encoder *encoder,
 718                                bool enable,
 719                                const struct drm_display_mode *adjusted_mode);
 720         bool (*infoframe_enabled)(struct drm_encoder *encoder,
 721                                   const struct intel_crtc_state *pipe_config);
 722 };
 723
 724 struct intel_dp_mst_encoder;
 725 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 726
 727 /*
 728  * enum link_m_n_set:
 729  *      When platform provides two set of M_N registers for dp, we can
 730  *      program them and switch between them incase of DRRS.
 731  *      But When only one such register is provided, we have to program the
 732  *      required divider value on that registers itself based on the DRRS state.
 733  *
 734  * M1_N1        : Program dp_m_n on M1_N1 registers
 735  *                        dp_m2_n2 on M2_N2 registers (If supported)
 736  *
 737  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
 738  *                        M2_N2 registers are not supported
 739  */
 740
 741 enum link_m_n_set {
 742         /* Sets the m1_n1 and m2_n2 */
 743         M1_N1 = 0,
 744         M2_N2
 745 };
 746
 747 struct intel_dp {
 748         i915_reg_t output_reg;
 749         i915_reg_t aux_ch_ctl_reg;
 750         i915_reg_t aux_ch_data_reg[5];
 751         uint32_t DP;
 752         int link_rate;
 753         uint8_t lane_count;
 754         bool has_audio;
 755         enum hdmi_force_audio force_audio;
 756         bool limited_color_range;
 757         bool color_range_auto;
 758         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 759         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 760         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 761         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
 762         uint8_t num_sink_rates;
 763         int sink_rates[DP_MAX_SUPPORTED_RATES];
 764         struct drm_dp_aux aux;
 765         uint8_t train_set[4];
 766         int panel_power_up_delay;
 767         int panel_power_down_delay;
 768         int panel_power_cycle_delay;
 769         int backlight_on_delay;
 770         int backlight_off_delay;
 771         struct delayed_work panel_vdd_work;
 772         bool want_panel_vdd;
 773         unsigned long last_power_on;
 774         unsigned long last_backlight_off;
 775         ktime_t panel_power_off_time;
 776
 777         struct notifier_block edp_notifier;
 778
 779         /*
 780          * Pipe whose power sequencer is currently locked into
 781          * this port. Only relevant on VLV/CHV.
 782          */
 783         enum pipe pps_pipe;
 784         struct edp_power_seq pps_delays;
 785
 786         bool can_mst; /* this port supports mst */
 787         bool is_mst;
 788         int active_mst_links;
 789         /* connector directly attached - won't be use for modeset in mst world */
 790         struct intel_connector *attached_connector;
 791
 792         /* mst connector list */
 793         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
 794         struct drm_dp_mst_topology_mgr mst_mgr;
 795
 796         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 797         /*
 798          * This function returns the value we have to program the AUX_CTL
 799          * register with to kick off an AUX transaction.
 800          */
 801         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 802                                      bool has_aux_irq,
 803                                      int send_bytes,
 804                                      uint32_t aux_clock_divider);
 805
 806         /* This is called before a link training is starterd */
 807         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
 808
 809         bool train_set_valid;
 810
 811         /* Displayport compliance testing */
 812         unsigned long compliance_test_type;
 813         unsigned long compliance_test_data;
 814         bool compliance_test_active;
 815 };
 816
 817 struct intel_digital_port {
 818         struct intel_encoder base;
 819         enum port port;
 820         u32 saved_port_bits;
 821         struct intel_dp dp;
 822         struct intel_hdmi hdmi;
 823         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 824         bool release_cl2_override;
 825         uint8_t max_lanes;
 826         /* for communication with audio component; protected by av_mutex */
 827         const struct drm_connector *audio_connector;
 828 };
 829
 830 struct intel_dp_mst_encoder {
 831         struct intel_encoder base;
 832         enum pipe pipe;
 833         struct intel_digital_port *primary;
 834         void *port; /* store this opaque as its illegal to dereference it */
 835 };
 836
 837 static inline enum dpio_channel
 838 vlv_dport_to_channel(struct intel_digital_port *dport)
 839 {
 840         switch (dport->port) {
 841         case PORT_B:
 842         case PORT_D:
 843                 return DPIO_CH0;
 844         case PORT_C:
 845                 return DPIO_CH1;
 846         default:
 847                 BUG();
 848         }
 849 }
 850
 851 static inline enum dpio_phy
 852 vlv_dport_to_phy(struct intel_digital_port *dport)
 853 {
 854         switch (dport->port) {
 855         case PORT_B:
 856         case PORT_C:
 857                 return DPIO_PHY0;
 858         case PORT_D:
 859                 return DPIO_PHY1;
 860         default:
 861                 BUG();
 862         }
 863 }
 864
 865 static inline enum dpio_channel
 866 vlv_pipe_to_channel(enum pipe pipe)
 867 {
 868         switch (pipe) {
 869         case PIPE_A:
 870         case PIPE_C:
 871                 return DPIO_CH0;
 872         case PIPE_B:
 873                 return DPIO_CH1;
 874         default:
 875                 BUG();
 876         }
 877 }
 878
 879 static inline struct drm_crtc *
 880 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 881 {
 882         struct drm_i915_private *dev_priv = dev->dev_private;
 883         return dev_priv->pipe_to_crtc_mapping[pipe];
 884 }
 885
 886 static inline struct drm_crtc *
 887 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 888 {
 889         struct drm_i915_private *dev_priv = dev->dev_private;
 890         return dev_priv->plane_to_crtc_mapping[plane];
 891 }
 892
 893 struct intel_unpin_work {
 894         struct work_struct work;
 895         struct drm_crtc *crtc;
 896         struct drm_framebuffer *old_fb;
 897         struct drm_i915_gem_object *pending_flip_obj;
 898         struct drm_pending_vblank_event *event;
 899         atomic_t pending;
 900 #define INTEL_FLIP_INACTIVE     0
 901 #define INTEL_FLIP_PENDING      1
 902 #define INTEL_FLIP_COMPLETE     2
 903         u32 flip_count;
 904         u32 gtt_offset;
 905         struct drm_i915_gem_request *flip_queued_req;
 906         u32 flip_queued_vblank;
 907         u32 flip_ready_vblank;
 908         bool enable_stall_check;
 909 };
 910
 911 struct intel_load_detect_pipe {
 912         struct drm_atomic_state *restore_state;
 913 };
 914
 915 static inline struct intel_encoder *
 916 intel_attached_encoder(struct drm_connector *connector)
 917 {
 918         return to_intel_connector(connector)->encoder;
 919 }
 920
 921 static inline struct intel_digital_port *
 922 enc_to_dig_port(struct drm_encoder *encoder)
 923 {
 924         return container_of(encoder, struct intel_digital_port, base.base);
 925 }
 926
 927 static inline struct intel_dp_mst_encoder *
 928 enc_to_mst(struct drm_encoder *encoder)
 929 {
 930         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
 931 }
 932
 933 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 934 {
 935         return &enc_to_dig_port(encoder)->dp;
 936 }
 937
 938 static inline struct intel_digital_port *
 939 dp_to_dig_port(struct intel_dp *intel_dp)
 940 {
 941         return container_of(intel_dp, struct intel_digital_port, dp);
 942 }
 943
 944 static inline struct intel_digital_port *
 945 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 946 {
 947         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 948 }
 949
 950 /*
 951  * Returns the number of planes for this pipe, ie the number of sprites + 1
 952  * (primary plane). This doesn't count the cursor plane then.
 953  */
 954 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
 955 {
 956         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
 957 }
 958
 959 /* intel_fifo_underrun.c */
 960 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 961                                            enum pipe pipe, bool enable);
 962 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 963                                            enum transcoder pch_transcoder,
 964                                            bool enable);
 965 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 966                                          enum pipe pipe);
 967 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 968                                          enum transcoder pch_transcoder);
 969 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
 970 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
 971
 972 /* i915_irq.c */
 973 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 974 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 975 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 976 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 977 void gen6_reset_rps_interrupts(struct drm_device *dev);
 978 void gen6_enable_rps_interrupts(struct drm_device *dev);
 979 void gen6_disable_rps_interrupts(struct drm_device *dev);
 980 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
 981 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
 982 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
 983 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
 984 {
 985         /*
 986          * We only use drm_irq_uninstall() at unload and VT switch, so
 987          * this is the only thing we need to check.
 988          */
 989         return dev_priv->pm.irqs_enabled;
 990 }
 991
 992 int intel_get_crtc_scanline(struct intel_crtc *crtc);
 993 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
 994                                      unsigned int pipe_mask);
 995 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
 996                                      unsigned int pipe_mask);
 997
 998 /* intel_crt.c */
 999 void intel_crt_init(struct drm_device *dev);
1000
1001
1002 /* intel_ddi.c */
1003 void intel_ddi_clk_select(struct intel_encoder *encoder,
1004                           const struct intel_crtc_state *pipe_config);
1005 void intel_prepare_ddi_buffer(struct intel_encoder *encoder);
1006 void hsw_fdi_link_train(struct drm_crtc *crtc);
1007 void intel_ddi_init(struct drm_device *dev, enum port port);
1008 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
1009 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1010 void intel_ddi_pll_init(struct drm_device *dev);
1011 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
1012 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
1013                                        enum transcoder cpu_transcoder);
1014 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
1015 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
1016 bool intel_ddi_pll_select(struct intel_crtc *crtc,
1017                           struct intel_crtc_state *crtc_state);
1018 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
1019 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1020 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1021 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
1022 bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
1023                                  struct intel_crtc *intel_crtc);
1024 void intel_ddi_get_config(struct intel_encoder *encoder,
1025                           struct intel_crtc_state *pipe_config);
1026 struct intel_encoder *
1027 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
1028
1029 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
1030 void intel_ddi_clock_get(struct intel_encoder *encoder,
1031                          struct intel_crtc_state *pipe_config);
1032 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
1033 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1034
1035 /* intel_frontbuffer.c */
1036 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
1037                              enum fb_op_origin origin);
1038 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
1039                                     unsigned frontbuffer_bits);
1040 void intel_frontbuffer_flip_complete(struct drm_device *dev,
1041                                      unsigned frontbuffer_bits);
1042 void intel_frontbuffer_flip(struct drm_device *dev,
1043                             unsigned frontbuffer_bits);
1044 unsigned int intel_fb_align_height(struct drm_device *dev,
1045                                    unsigned int height,
1046                                    uint32_t pixel_format,
1047                                    uint64_t fb_format_modifier);
1048 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
1049                         enum fb_op_origin origin);
1050 u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
1051                               uint64_t fb_modifier, uint32_t pixel_format);
1052
1053 /* intel_audio.c */
1054 void intel_init_audio(struct drm_device *dev);
1055 void intel_audio_codec_enable(struct intel_encoder *encoder);
1056 void intel_audio_codec_disable(struct intel_encoder *encoder);
1057 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1058 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1059
1060 /* intel_display.c */
1061 extern const struct drm_plane_funcs intel_plane_funcs;
1062 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1063 int intel_pch_rawclk(struct drm_device *dev);
1064 int intel_hrawclk(struct drm_device *dev);
1065 void intel_mark_busy(struct drm_device *dev);
1066 void intel_mark_idle(struct drm_device *dev);
1067 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1068 int intel_display_suspend(struct drm_device *dev);
1069 void intel_encoder_destroy(struct drm_encoder *encoder);
1070 int intel_connector_init(struct intel_connector *);
1071 struct intel_connector *intel_connector_alloc(void);
1072 bool intel_connector_get_hw_state(struct intel_connector *connector);
1073 void intel_connector_attach_encoder(struct intel_connector *connector,
1074                                     struct intel_encoder *encoder);
1075 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
1076 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1077                                              struct drm_crtc *crtc);
1078 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1079 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1080                                 struct drm_file *file_priv);
1081 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1082                                              enum pipe pipe);
1083 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
1084 static inline void
1085 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1086 {
1087         drm_wait_one_vblank(dev, pipe);
1088 }
1089 static inline void
1090 intel_wait_for_vblank_if_active(struct drm_device *dev, int pipe)
1091 {
1092         const struct intel_crtc *crtc =
1093                 to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
1094
1095         if (crtc->active)
1096                 intel_wait_for_vblank(dev, pipe);
1097 }
1098 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1099 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1100                          struct intel_digital_port *dport,
1101                          unsigned int expected_mask);
1102 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1103                                 struct drm_display_mode *mode,
1104                                 struct intel_load_detect_pipe *old,
1105                                 struct drm_modeset_acquire_ctx *ctx);
1106 void intel_release_load_detect_pipe(struct drm_connector *connector,
1107                                     struct intel_load_detect_pipe *old,
1108                                     struct drm_modeset_acquire_ctx *ctx);
1109 int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
1110                                struct drm_framebuffer *fb,
1111                                const struct drm_plane_state *plane_state);
1112 struct drm_framebuffer *
1113 __intel_framebuffer_create(struct drm_device *dev,
1114                            struct drm_mode_fb_cmd2 *mode_cmd,
1115                            struct drm_i915_gem_object *obj);
1116 void intel_prepare_page_flip(struct drm_device *dev, int plane);
1117 void intel_finish_page_flip(struct drm_device *dev, int pipe);
1118 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
1119 void intel_check_page_flip(struct drm_device *dev, int pipe);
1120 int intel_prepare_plane_fb(struct drm_plane *plane,
1121                            const struct drm_plane_state *new_state);
1122 void intel_cleanup_plane_fb(struct drm_plane *plane,
1123                             const struct drm_plane_state *old_state);
1124 int intel_plane_atomic_get_property(struct drm_plane *plane,
1125                                     const struct drm_plane_state *state,
1126                                     struct drm_property *property,
1127                                     uint64_t *val);
1128 int intel_plane_atomic_set_property(struct drm_plane *plane,
1129                                     struct drm_plane_state *state,
1130                                     struct drm_property *property,
1131                                     uint64_t val);
1132 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1133                                     struct drm_plane_state *plane_state);
1134
1135 unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
1136                                uint64_t fb_modifier, unsigned int cpp);
1137
1138 static inline bool
1139 intel_rotation_90_or_270(unsigned int rotation)
1140 {
1141         return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
1142 }
1143
1144 void intel_create_rotation_property(struct drm_device *dev,
1145                                         struct intel_plane *plane);
1146
1147 /* shared dpll functions */
1148 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
1149 void assert_shared_dpll(struct drm_i915_private *dev_priv,
1150                         struct intel_shared_dpll *pll,
1151                         bool state);
1152 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
1153 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
1154 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
1155                                                 struct intel_crtc_state *state);
1156
1157 int vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
1158                      const struct dpll *dpll);
1159 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
1160
1161 /* modesetting asserts */
1162 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1163                            enum pipe pipe);
1164 void assert_pll(struct drm_i915_private *dev_priv,
1165                 enum pipe pipe, bool state);
1166 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1167 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1168 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1169                        enum pipe pipe, bool state);
1170 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1171 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1172 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1173 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1174 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1175 u32 intel_compute_tile_offset(struct drm_i915_private *dev_priv,
1176                               int *x, int *y,
1177                               uint64_t fb_modifier,
1178                               unsigned int cpp,
1179                               unsigned int pitch);
1180 void intel_prepare_reset(struct drm_device *dev);
1181 void intel_finish_reset(struct drm_device *dev);
1182 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1183 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1184 void broxton_init_cdclk(struct drm_device *dev);
1185 void broxton_uninit_cdclk(struct drm_device *dev);
1186 void broxton_ddi_phy_init(struct drm_device *dev);
1187 void broxton_ddi_phy_uninit(struct drm_device *dev);
1188 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1189 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1190 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1191 int skl_sanitize_cdclk(struct drm_i915_private *dev_priv);
1192 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1193 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1194 void skl_disable_dc6(struct drm_i915_private *dev_priv);
1195 void intel_dp_get_m_n(struct intel_crtc *crtc,
1196                       struct intel_crtc_state *pipe_config);
1197 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1198 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1199 void
1200 ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
1201                                 int dotclock);
1202 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1203                         intel_clock_t *best_clock);
1204 int chv_calc_dpll_params(int refclk, intel_clock_t *pll_clock);
1205
1206 bool intel_crtc_active(struct drm_crtc *crtc);
1207 void hsw_enable_ips(struct intel_crtc *crtc);
1208 void hsw_disable_ips(struct intel_crtc *crtc);
1209 enum intel_display_power_domain
1210 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1211 enum intel_display_power_domain
1212 intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder);
1213 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1214                                  struct intel_crtc_state *pipe_config);
1215
1216 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1217 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1218
1219 u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
1220                            struct drm_i915_gem_object *obj,
1221                            unsigned int plane);
1222
1223 u32 skl_plane_ctl_format(uint32_t pixel_format);
1224 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1225 u32 skl_plane_ctl_rotation(unsigned int rotation);
1226
1227 /* intel_csr.c */
1228 void intel_csr_ucode_init(struct drm_i915_private *);
1229 bool intel_csr_load_program(struct drm_i915_private *);
1230 void intel_csr_ucode_fini(struct drm_i915_private *);
1231
1232 /* intel_dp.c */
1233 void intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
1234 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1235                              struct intel_connector *intel_connector);
1236 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1237                               const struct intel_crtc_state *pipe_config);
1238 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1239 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1240 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1241 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1242 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1243 bool intel_dp_compute_config(struct intel_encoder *encoder,
1244                              struct intel_crtc_state *pipe_config);
1245 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1246 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1247                                   bool long_hpd);
1248 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1249 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1250 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1251 void intel_edp_panel_on(struct intel_dp *intel_dp);
1252 void intel_edp_panel_off(struct intel_dp *intel_dp);
1253 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1254 void intel_dp_mst_suspend(struct drm_device *dev);
1255 void intel_dp_mst_resume(struct drm_device *dev);
1256 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1257 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1258 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1259 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1260 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1261 void intel_plane_destroy(struct drm_plane *plane);
1262 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1263 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1264 void intel_edp_drrs_invalidate(struct drm_device *dev,
1265                 unsigned frontbuffer_bits);
1266 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1267 bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
1268                                          struct intel_digital_port *port);
1269 void hsw_dp_set_ddi_pll_sel(struct intel_crtc_state *pipe_config);
1270
1271 void
1272 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1273                                        uint8_t dp_train_pat);
1274 void
1275 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1276 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1277 uint8_t
1278 intel_dp_voltage_max(struct intel_dp *intel_dp);
1279 uint8_t
1280 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1281 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1282                            uint8_t *link_bw, uint8_t *rate_select);
1283 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1284 bool
1285 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1286
1287 /* intel_dp_mst.c */
1288 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1289 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1290 /* intel_dsi.c */
1291 void intel_dsi_init(struct drm_device *dev);
1292
1293
1294 /* intel_dvo.c */
1295 void intel_dvo_init(struct drm_device *dev);
1296
1297
1298 /* legacy fbdev emulation in intel_fbdev.c */
1299 #ifdef CONFIG_DRM_FBDEV_EMULATION
1300 extern int intel_fbdev_init(struct drm_device *dev);
1301 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1302 extern void intel_fbdev_fini(struct drm_device *dev);
1303 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1304 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1305 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1306 #else
1307 static inline int intel_fbdev_init(struct drm_device *dev)
1308 {
1309         return 0;
1310 }
1311
1312 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1313 {
1314 }
1315
1316 static inline void intel_fbdev_fini(struct drm_device *dev)
1317 {
1318 }
1319
1320 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1321 {
1322 }
1323
1324 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1325 {
1326 }
1327 #endif
1328
1329 /* intel_fbc.c */
1330 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1331                            struct drm_atomic_state *state);
1332 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1333 void intel_fbc_pre_update(struct intel_crtc *crtc);
1334 void intel_fbc_post_update(struct intel_crtc *crtc);
1335 void intel_fbc_init(struct drm_i915_private *dev_priv);
1336 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1337 void intel_fbc_enable(struct intel_crtc *crtc);
1338 void intel_fbc_disable(struct intel_crtc *crtc);
1339 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1340 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1341                           unsigned int frontbuffer_bits,
1342                           enum fb_op_origin origin);
1343 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1344                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1345 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1346
1347 /* intel_hdmi.c */
1348 void intel_hdmi_init(struct drm_device *dev, i915_reg_t hdmi_reg, enum port port);
1349 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1350                                struct intel_connector *intel_connector);
1351 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1352 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1353                                struct intel_crtc_state *pipe_config);
1354
1355
1356 /* intel_lvds.c */
1357 void intel_lvds_init(struct drm_device *dev);
1358 bool intel_is_dual_link_lvds(struct drm_device *dev);
1359
1360
1361 /* intel_modes.c */
1362 int intel_connector_update_modes(struct drm_connector *connector,
1363                                  struct edid *edid);
1364 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1365 void intel_attach_force_audio_property(struct drm_connector *connector);
1366 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1367 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1368
1369
1370 /* intel_overlay.c */
1371 void intel_setup_overlay(struct drm_device *dev);
1372 void intel_cleanup_overlay(struct drm_device *dev);
1373 int intel_overlay_switch_off(struct intel_overlay *overlay);
1374 int intel_overlay_put_image(struct drm_device *dev, void *data,
1375                             struct drm_file *file_priv);
1376 int intel_overlay_attrs(struct drm_device *dev, void *data,
1377                         struct drm_file *file_priv);
1378 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1379
1380
1381 /* intel_panel.c */
1382 int intel_panel_init(struct intel_panel *panel,
1383                      struct drm_display_mode *fixed_mode,
1384                      struct drm_display_mode *downclock_mode);
1385 void intel_panel_fini(struct intel_panel *panel);
1386 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1387                             struct drm_display_mode *adjusted_mode);
1388 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1389                              struct intel_crtc_state *pipe_config,
1390                              int fitting_mode);
1391 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1392                               struct intel_crtc_state *pipe_config,
1393                               int fitting_mode);
1394 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1395                                     u32 level, u32 max);
1396 int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe);
1397 void intel_panel_enable_backlight(struct intel_connector *connector);
1398 void intel_panel_disable_backlight(struct intel_connector *connector);
1399 void intel_panel_destroy_backlight(struct drm_connector *connector);
1400 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1401 extern struct drm_display_mode *intel_find_panel_downclock(
1402                                 struct drm_device *dev,
1403                                 struct drm_display_mode *fixed_mode,
1404                                 struct drm_connector *connector);
1405 void intel_backlight_register(struct drm_device *dev);
1406 void intel_backlight_unregister(struct drm_device *dev);
1407
1408
1409 /* intel_psr.c */
1410 void intel_psr_enable(struct intel_dp *intel_dp);
1411 void intel_psr_disable(struct intel_dp *intel_dp);
1412 void intel_psr_invalidate(struct drm_device *dev,
1413                           unsigned frontbuffer_bits);
1414 void intel_psr_flush(struct drm_device *dev,
1415                      unsigned frontbuffer_bits,
1416                      enum fb_op_origin origin);
1417 void intel_psr_init(struct drm_device *dev);
1418 void intel_psr_single_frame_update(struct drm_device *dev,
1419                                    unsigned frontbuffer_bits);
1420
1421 /* intel_runtime_pm.c */
1422 int intel_power_domains_init(struct drm_i915_private *);
1423 void intel_power_domains_fini(struct drm_i915_private *);
1424 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1425 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1426 void skl_pw1_misc_io_init(struct drm_i915_private *dev_priv);
1427 void skl_pw1_misc_io_fini(struct drm_i915_private *dev_priv);
1428 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1429 const char *
1430 intel_display_power_domain_str(enum intel_display_power_domain domain);
1431
1432 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1433                                     enum intel_display_power_domain domain);
1434 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1435                                       enum intel_display_power_domain domain);
1436 void intel_display_power_get(struct drm_i915_private *dev_priv,
1437                              enum intel_display_power_domain domain);
1438 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1439                                         enum intel_display_power_domain domain);
1440 void intel_display_power_put(struct drm_i915_private *dev_priv,
1441                              enum intel_display_power_domain domain);
1442
1443 static inline void
1444 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1445 {
1446         WARN_ONCE(dev_priv->pm.suspended,
1447                   "Device suspended during HW access\n");
1448 }
1449
1450 static inline void
1451 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1452 {
1453         assert_rpm_device_not_suspended(dev_priv);
1454         /* FIXME: Needs to be converted back to WARN_ONCE, but currently causes
1455          * too much noise. */
1456         if (!atomic_read(&dev_priv->pm.wakeref_count))
1457                 DRM_DEBUG_DRIVER("RPM wakelock ref not held during HW access");
1458 }
1459
1460 static inline int
1461 assert_rpm_atomic_begin(struct drm_i915_private *dev_priv)
1462 {
1463         int seq = atomic_read(&dev_priv->pm.atomic_seq);
1464
1465         assert_rpm_wakelock_held(dev_priv);
1466
1467         return seq;
1468 }
1469
1470 static inline void
1471 assert_rpm_atomic_end(struct drm_i915_private *dev_priv, int begin_seq)
1472 {
1473         WARN_ONCE(atomic_read(&dev_priv->pm.atomic_seq) != begin_seq,
1474                   "HW access outside of RPM atomic section\n");
1475 }
1476
1477 /**
1478  * disable_rpm_wakeref_asserts - disable the RPM assert checks
1479  * @dev_priv: i915 device instance
1480  *
1481  * This function disable asserts that check if we hold an RPM wakelock
1482  * reference, while keeping the device-not-suspended checks still enabled.
1483  * It's meant to be used only in special circumstances where our rule about
1484  * the wakelock refcount wrt. the device power state doesn't hold. According
1485  * to this rule at any point where we access the HW or want to keep the HW in
1486  * an active state we must hold an RPM wakelock reference acquired via one of
1487  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1488  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1489  * forcewake release timer, and the GPU RPS and hangcheck works. All other
1490  * users should avoid using this function.
1491  *
1492  * Any calls to this function must have a symmetric call to
1493  * enable_rpm_wakeref_asserts().
1494  */
1495 static inline void
1496 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1497 {
1498         atomic_inc(&dev_priv->pm.wakeref_count);
1499 }
1500
1501 /**
1502  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
1503  * @dev_priv: i915 device instance
1504  *
1505  * This function re-enables the RPM assert checks after disabling them with
1506  * disable_rpm_wakeref_asserts. It's meant to be used only in special
1507  * circumstances otherwise its use should be avoided.
1508  *
1509  * Any calls to this function must have a symmetric call to
1510  * disable_rpm_wakeref_asserts().
1511  */
1512 static inline void
1513 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1514 {
1515         atomic_dec(&dev_priv->pm.wakeref_count);
1516 }
1517
1518 /* TODO: convert users of these to rely instead on proper RPM refcounting */
1519 #define DISABLE_RPM_WAKEREF_ASSERTS(dev_priv)   \
1520         disable_rpm_wakeref_asserts(dev_priv)
1521
1522 #define ENABLE_RPM_WAKEREF_ASSERTS(dev_priv)    \
1523         enable_rpm_wakeref_asserts(dev_priv)
1524
1525 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1526 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
1527 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1528 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1529
1530 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1531
1532 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1533                              bool override, unsigned int mask);
1534 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1535                           enum dpio_channel ch, bool override);
1536
1537
1538 /* intel_pm.c */
1539 void intel_init_clock_gating(struct drm_device *dev);
1540 void intel_suspend_hw(struct drm_device *dev);
1541 int ilk_wm_max_level(const struct drm_device *dev);
1542 void intel_update_watermarks(struct drm_crtc *crtc);
1543 void intel_init_pm(struct drm_device *dev);
1544 void intel_pm_setup(struct drm_device *dev);
1545 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1546 void intel_gpu_ips_teardown(void);
1547 void intel_init_gt_powersave(struct drm_device *dev);
1548 void intel_cleanup_gt_powersave(struct drm_device *dev);
1549 void intel_enable_gt_powersave(struct drm_device *dev);
1550 void intel_disable_gt_powersave(struct drm_device *dev);
1551 void intel_suspend_gt_powersave(struct drm_device *dev);
1552 void intel_reset_gt_powersave(struct drm_device *dev);
1553 void gen6_update_ring_freq(struct drm_device *dev);
1554 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1555 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1556 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1557 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1558                     struct intel_rps_client *rps,
1559                     unsigned long submitted);
1560 void intel_queue_rps_boost_for_request(struct drm_device *dev,
1561                                        struct drm_i915_gem_request *req);
1562 void vlv_wm_get_hw_state(struct drm_device *dev);
1563 void ilk_wm_get_hw_state(struct drm_device *dev);
1564 void skl_wm_get_hw_state(struct drm_device *dev);
1565 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1566                           struct skl_ddb_allocation *ddb /* out */);
1567 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1568 int sanitize_rc6_option(const struct drm_device *dev, int enable_rc6);
1569
1570 /* intel_sdvo.c */
1571 bool intel_sdvo_init(struct drm_device *dev,
1572                      i915_reg_t reg, enum port port);
1573
1574
1575 /* intel_sprite.c */
1576 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1577 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1578                               struct drm_file *file_priv);
1579 void intel_pipe_update_start(struct intel_crtc *crtc);
1580 void intel_pipe_update_end(struct intel_crtc *crtc);
1581
1582 /* intel_tv.c */
1583 void intel_tv_init(struct drm_device *dev);
1584
1585 /* intel_atomic.c */
1586 int intel_connector_atomic_get_property(struct drm_connector *connector,
1587                                         const struct drm_connector_state *state,
1588                                         struct drm_property *property,
1589                                         uint64_t *val);
1590 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1591 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1592                                struct drm_crtc_state *state);
1593 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1594 void intel_atomic_state_clear(struct drm_atomic_state *);
1595 struct intel_shared_dpll_config *
1596 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1597
1598 static inline struct intel_crtc_state *
1599 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1600                             struct intel_crtc *crtc)
1601 {
1602         struct drm_crtc_state *crtc_state;
1603         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1604         if (IS_ERR(crtc_state))
1605                 return ERR_CAST(crtc_state);
1606
1607         return to_intel_crtc_state(crtc_state);
1608 }
1609 int intel_atomic_setup_scalers(struct drm_device *dev,
1610         struct intel_crtc *intel_crtc,
1611         struct intel_crtc_state *crtc_state);
1612
1613 /* intel_atomic_plane.c */
1614 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1615 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1616 void intel_plane_destroy_state(struct drm_plane *plane,
1617                                struct drm_plane_state *state);
1618 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1619
1620 #endif /* __INTEL_DRV_H__ */