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  * TODO: When modesetting has fully transitioned to atomic, the below
  49  * drm_can_sleep() can be removed and in_atomic()/!in_atomic() asserts
  50  * added.
  51  */
  52 #define _wait_for(COND, US, W) ({ \
  53         unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1;   \
  54         int ret__ = 0;                                                  \
  55         while (!(COND)) {                                               \
  56                 if (time_after(jiffies, timeout__)) {                   \
  57                         if (!(COND))                                    \
  58                                 ret__ = -ETIMEDOUT;                     \
  59                         break;                                          \
  60                 }                                                       \
  61                 if ((W) && drm_can_sleep()) {                           \
  62                         usleep_range((W), (W)*2);                       \
  63                 } else {                                                \
  64                         cpu_relax();                                    \
  65                 }                                                       \
  66         }                                                               \
  67         ret__;                                                          \
  68 })
  69
  70 #define wait_for(COND, MS)              _wait_for((COND), (MS) * 1000, 1000)
  71 #define wait_for_us(COND, US)           _wait_for((COND), (US), 1)
  72
  73 /* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
  74 #if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
  75 # define _WAIT_FOR_ATOMIC_CHECK WARN_ON_ONCE(!in_atomic())
  76 #else
  77 # define _WAIT_FOR_ATOMIC_CHECK do { } while (0)
  78 #endif
  79
  80 #define _wait_for_atomic(COND, US) ({ \
  81         unsigned long end__; \
  82         int ret__ = 0; \
  83         _WAIT_FOR_ATOMIC_CHECK; \
  84         BUILD_BUG_ON((US) > 50000); \
  85         end__ = (local_clock() >> 10) + (US) + 1; \
  86         while (!(COND)) { \
  87                 if (time_after((unsigned long)(local_clock() >> 10), end__)) { \
  88                         /* Unlike the regular wait_for(), this atomic variant \
  89                          * cannot be preempted (and we'll just ignore the issue\
  90                          * of irq interruptions) and so we know that no time \
  91                          * has passed since the last check of COND and can \
  92                          * immediately report the timeout. \
  93                          */ \
  94                         ret__ = -ETIMEDOUT; \
  95                         break; \
  96                 } \
  97                 cpu_relax(); \
  98         } \
  99         ret__; \
 100 })
 101
 102 #define wait_for_atomic(COND, MS)       _wait_for_atomic((COND), (MS) * 1000)
 103 #define wait_for_atomic_us(COND, US)    _wait_for_atomic((COND), (US))
 104
 105 #define KHz(x) (1000 * (x))
 106 #define MHz(x) KHz(1000 * (x))
 107
 108 /*
 109  * Display related stuff
 110  */
 111
 112 /* store information about an Ixxx DVO */
 113 /* The i830->i865 use multiple DVOs with multiple i2cs */
 114 /* the i915, i945 have a single sDVO i2c bus - which is different */
 115 #define MAX_OUTPUTS 6
 116 /* maximum connectors per crtcs in the mode set */
 117
 118 /* Maximum cursor sizes */
 119 #define GEN2_CURSOR_WIDTH 64
 120 #define GEN2_CURSOR_HEIGHT 64
 121 #define MAX_CURSOR_WIDTH 256
 122 #define MAX_CURSOR_HEIGHT 256
 123
 124 #define INTEL_I2C_BUS_DVO 1
 125 #define INTEL_I2C_BUS_SDVO 2
 126
 127 /* these are outputs from the chip - integrated only
 128    external chips are via DVO or SDVO output */
 129 enum intel_output_type {
 130         INTEL_OUTPUT_UNUSED = 0,
 131         INTEL_OUTPUT_ANALOG = 1,
 132         INTEL_OUTPUT_DVO = 2,
 133         INTEL_OUTPUT_SDVO = 3,
 134         INTEL_OUTPUT_LVDS = 4,
 135         INTEL_OUTPUT_TVOUT = 5,
 136         INTEL_OUTPUT_HDMI = 6,
 137         INTEL_OUTPUT_DISPLAYPORT = 7,
 138         INTEL_OUTPUT_EDP = 8,
 139         INTEL_OUTPUT_DSI = 9,
 140         INTEL_OUTPUT_UNKNOWN = 10,
 141         INTEL_OUTPUT_DP_MST = 11,
 142 };
 143
 144 #define INTEL_DVO_CHIP_NONE 0
 145 #define INTEL_DVO_CHIP_LVDS 1
 146 #define INTEL_DVO_CHIP_TMDS 2
 147 #define INTEL_DVO_CHIP_TVOUT 4
 148
 149 #define INTEL_DSI_VIDEO_MODE    0
 150 #define INTEL_DSI_COMMAND_MODE  1
 151
 152 struct intel_framebuffer {
 153         struct drm_framebuffer base;
 154         struct drm_i915_gem_object *obj;
 155         struct intel_rotation_info rot_info;
 156 };
 157
 158 struct intel_fbdev {
 159         struct drm_fb_helper helper;
 160         struct intel_framebuffer *fb;
 161         int preferred_bpp;
 162 };
 163
 164 struct intel_encoder {
 165         struct drm_encoder base;
 166
 167         enum intel_output_type type;
 168         unsigned int cloneable;
 169         void (*hot_plug)(struct intel_encoder *);
 170         bool (*compute_config)(struct intel_encoder *,
 171                                struct intel_crtc_state *);
 172         void (*pre_pll_enable)(struct intel_encoder *);
 173         void (*pre_enable)(struct intel_encoder *);
 174         void (*enable)(struct intel_encoder *);
 175         void (*mode_set)(struct intel_encoder *intel_encoder);
 176         void (*disable)(struct intel_encoder *);
 177         void (*post_disable)(struct intel_encoder *);
 178         void (*post_pll_disable)(struct intel_encoder *);
 179         /* Read out the current hw state of this connector, returning true if
 180          * the encoder is active. If the encoder is enabled it also set the pipe
 181          * it is connected to in the pipe parameter. */
 182         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 183         /* Reconstructs the equivalent mode flags for the current hardware
 184          * state. This must be called _after_ display->get_pipe_config has
 185          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 186          * be set correctly before calling this function. */
 187         void (*get_config)(struct intel_encoder *,
 188                            struct intel_crtc_state *pipe_config);
 189         /*
 190          * Called during system suspend after all pending requests for the
 191          * encoder are flushed (for example for DP AUX transactions) and
 192          * device interrupts are disabled.
 193          */
 194         void (*suspend)(struct intel_encoder *);
 195         int crtc_mask;
 196         enum hpd_pin hpd_pin;
 197 };
 198
 199 struct intel_panel {
 200         struct drm_display_mode *fixed_mode;
 201         struct drm_display_mode *downclock_mode;
 202         int fitting_mode;
 203
 204         /* backlight */
 205         struct {
 206                 bool present;
 207                 u32 level;
 208                 u32 min;
 209                 u32 max;
 210                 bool enabled;
 211                 bool combination_mode;  /* gen 2/4 only */
 212                 bool active_low_pwm;
 213
 214                 /* PWM chip */
 215                 bool util_pin_active_low;       /* bxt+ */
 216                 u8 controller;          /* bxt+ only */
 217                 struct pwm_device *pwm;
 218
 219                 struct backlight_device *device;
 220
 221                 /* Connector and platform specific backlight functions */
 222                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 223                 uint32_t (*get)(struct intel_connector *connector);
 224                 void (*set)(struct intel_connector *connector, uint32_t level);
 225                 void (*disable)(struct intel_connector *connector);
 226                 void (*enable)(struct intel_connector *connector);
 227                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 228                                       uint32_t hz);
 229                 void (*power)(struct intel_connector *, bool enable);
 230         } backlight;
 231 };
 232
 233 struct intel_connector {
 234         struct drm_connector base;
 235         /*
 236          * The fixed encoder this connector is connected to.
 237          */
 238         struct intel_encoder *encoder;
 239
 240         /* Reads out the current hw, returning true if the connector is enabled
 241          * and active (i.e. dpms ON state). */
 242         bool (*get_hw_state)(struct intel_connector *);
 243
 244         /*
 245          * Removes all interfaces through which the connector is accessible
 246          * - like sysfs, debugfs entries -, so that no new operations can be
 247          * started on the connector. Also makes sure all currently pending
 248          * operations finish before returing.
 249          */
 250         void (*unregister)(struct intel_connector *);
 251
 252         /* Panel info for eDP and LVDS */
 253         struct intel_panel panel;
 254
 255         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 256         struct edid *edid;
 257         struct edid *detect_edid;
 258
 259         /* since POLL and HPD connectors may use the same HPD line keep the native
 260            state of connector->polled in case hotplug storm detection changes it */
 261         u8 polled;
 262
 263         void *port; /* store this opaque as its illegal to dereference it */
 264
 265         struct intel_dp *mst_port;
 266 };
 267
 268 typedef struct dpll {
 269         /* given values */
 270         int n;
 271         int m1, m2;
 272         int p1, p2;
 273         /* derived values */
 274         int     dot;
 275         int     vco;
 276         int     m;
 277         int     p;
 278 } intel_clock_t;
 279
 280 struct intel_atomic_state {
 281         struct drm_atomic_state base;
 282
 283         unsigned int cdclk;
 284
 285         /*
 286          * Calculated device cdclk, can be different from cdclk
 287          * only when all crtc's are DPMS off.
 288          */
 289         unsigned int dev_cdclk;
 290
 291         bool dpll_set, modeset;
 292
 293         unsigned int active_crtcs;
 294         unsigned int min_pixclk[I915_MAX_PIPES];
 295
 296         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
 297         struct intel_wm_config wm_config;
 298
 299         /*
 300          * Current watermarks can't be trusted during hardware readout, so
 301          * don't bother calculating intermediate watermarks.
 302          */
 303         bool skip_intermediate_wm;
 304 };
 305
 306 struct intel_plane_state {
 307         struct drm_plane_state base;
 308         struct drm_rect src;
 309         struct drm_rect dst;
 310         struct drm_rect clip;
 311         bool visible;
 312
 313         /*
 314          * scaler_id
 315          *    = -1 : not using a scaler
 316          *    >=  0 : using a scalers
 317          *
 318          * plane requiring a scaler:
 319          *   - During check_plane, its bit is set in
 320          *     crtc_state->scaler_state.scaler_users by calling helper function
 321          *     update_scaler_plane.
 322          *   - scaler_id indicates the scaler it got assigned.
 323          *
 324          * plane doesn't require a scaler:
 325          *   - this can happen when scaling is no more required or plane simply
 326          *     got disabled.
 327          *   - During check_plane, corresponding bit is reset in
 328          *     crtc_state->scaler_state.scaler_users by calling helper function
 329          *     update_scaler_plane.
 330          */
 331         int scaler_id;
 332
 333         struct drm_intel_sprite_colorkey ckey;
 334
 335         /* async flip related structures */
 336         struct drm_i915_gem_request *wait_req;
 337 };
 338
 339 struct intel_initial_plane_config {
 340         struct intel_framebuffer *fb;
 341         unsigned int tiling;
 342         int size;
 343         u32 base;
 344 };
 345
 346 #define SKL_MIN_SRC_W 8
 347 #define SKL_MAX_SRC_W 4096
 348 #define SKL_MIN_SRC_H 8
 349 #define SKL_MAX_SRC_H 4096
 350 #define SKL_MIN_DST_W 8
 351 #define SKL_MAX_DST_W 4096
 352 #define SKL_MIN_DST_H 8
 353 #define SKL_MAX_DST_H 4096
 354
 355 struct intel_scaler {
 356         int in_use;
 357         uint32_t mode;
 358 };
 359
 360 struct intel_crtc_scaler_state {
 361 #define SKL_NUM_SCALERS 2
 362         struct intel_scaler scalers[SKL_NUM_SCALERS];
 363
 364         /*
 365          * scaler_users: keeps track of users requesting scalers on this crtc.
 366          *
 367          *     If a bit is set, a user is using a scaler.
 368          *     Here user can be a plane or crtc as defined below:
 369          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 370          *       bit 31    - crtc
 371          *
 372          * Instead of creating a new index to cover planes and crtc, using
 373          * existing drm_plane_index for planes which is well less than 31
 374          * planes and bit 31 for crtc. This should be fine to cover all
 375          * our platforms.
 376          *
 377          * intel_atomic_setup_scalers will setup available scalers to users
 378          * requesting scalers. It will gracefully fail if request exceeds
 379          * avilability.
 380          */
 381 #define SKL_CRTC_INDEX 31
 382         unsigned scaler_users;
 383
 384         /* scaler used by crtc for panel fitting purpose */
 385         int scaler_id;
 386 };
 387
 388 /* drm_mode->private_flags */
 389 #define I915_MODE_FLAG_INHERITED 1
 390
 391 struct intel_pipe_wm {
 392         struct intel_wm_level wm[5];
 393         struct intel_wm_level raw_wm[5];
 394         uint32_t linetime;
 395         bool fbc_wm_enabled;
 396         bool pipe_enabled;
 397         bool sprites_enabled;
 398         bool sprites_scaled;
 399 };
 400
 401 struct skl_pipe_wm {
 402         struct skl_wm_level wm[8];
 403         struct skl_wm_level trans_wm;
 404         uint32_t linetime;
 405 };
 406
 407 struct intel_crtc_state {
 408         struct drm_crtc_state base;
 409
 410         /**
 411          * quirks - bitfield with hw state readout quirks
 412          *
 413          * For various reasons the hw state readout code might not be able to
 414          * completely faithfully read out the current state. These cases are
 415          * tracked with quirk flags so that fastboot and state checker can act
 416          * accordingly.
 417          */
 418 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 419         unsigned long quirks;
 420
 421         unsigned fb_bits; /* framebuffers to flip */
 422         bool update_pipe; /* can a fast modeset be performed? */
 423         bool disable_cxsr;
 424         bool update_wm_pre, update_wm_post; /* watermarks are updated */
 425         bool fb_changed; /* fb on any of the planes is changed */
 426
 427         /* Pipe source size (ie. panel fitter input size)
 428          * All planes will be positioned inside this space,
 429          * and get clipped at the edges. */
 430         int pipe_src_w, pipe_src_h;
 431
 432         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 433          * between pch encoders and cpu encoders. */
 434         bool has_pch_encoder;
 435
 436         /* Are we sending infoframes on the attached port */
 437         bool has_infoframe;
 438
 439         /* CPU Transcoder for the pipe. Currently this can only differ from the
 440          * pipe on Haswell and later (where we have a special eDP transcoder)
 441          * and Broxton (where we have special DSI transcoders). */
 442         enum transcoder cpu_transcoder;
 443
 444         /*
 445          * Use reduced/limited/broadcast rbg range, compressing from the full
 446          * range fed into the crtcs.
 447          */
 448         bool limited_color_range;
 449
 450         /* DP has a bunch of special case unfortunately, so mark the pipe
 451          * accordingly. */
 452         bool has_dp_encoder;
 453
 454         /* DSI has special cases */
 455         bool has_dsi_encoder;
 456
 457         /* Whether we should send NULL infoframes. Required for audio. */
 458         bool has_hdmi_sink;
 459
 460         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 461          * has_dp_encoder is set. */
 462         bool has_audio;
 463
 464         /*
 465          * Enable dithering, used when the selected pipe bpp doesn't match the
 466          * plane bpp.
 467          */
 468         bool dither;
 469
 470         /* Controls for the clock computation, to override various stages. */
 471         bool clock_set;
 472
 473         /* SDVO TV has a bunch of special case. To make multifunction encoders
 474          * work correctly, we need to track this at runtime.*/
 475         bool sdvo_tv_clock;
 476
 477         /*
 478          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 479          * required. This is set in the 2nd loop of calling encoder's
 480          * ->compute_config if the first pick doesn't work out.
 481          */
 482         bool bw_constrained;
 483
 484         /* Settings for the intel dpll used on pretty much everything but
 485          * haswell. */
 486         struct dpll dpll;
 487
 488         /* Selected dpll when shared or NULL. */
 489         struct intel_shared_dpll *shared_dpll;
 490
 491         /*
 492          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
 493          * - enum skl_dpll on SKL
 494          */
 495         uint32_t ddi_pll_sel;
 496
 497         /* Actual register state of the dpll, for shared dpll cross-checking. */
 498         struct intel_dpll_hw_state dpll_hw_state;
 499
 500         /* DSI PLL registers */
 501         struct {
 502                 u32 ctrl, div;
 503         } dsi_pll;
 504
 505         int pipe_bpp;
 506         struct intel_link_m_n dp_m_n;
 507
 508         /* m2_n2 for eDP downclock */
 509         struct intel_link_m_n dp_m2_n2;
 510         bool has_drrs;
 511
 512         /*
 513          * Frequence the dpll for the port should run at. Differs from the
 514          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 515          * already multiplied by pixel_multiplier.
 516          */
 517         int port_clock;
 518
 519         /* Used by SDVO (and if we ever fix it, HDMI). */
 520         unsigned pixel_multiplier;
 521
 522         uint8_t lane_count;
 523
 524         /* Panel fitter controls for gen2-gen4 + VLV */
 525         struct {
 526                 u32 control;
 527                 u32 pgm_ratios;
 528                 u32 lvds_border_bits;
 529         } gmch_pfit;
 530
 531         /* Panel fitter placement and size for Ironlake+ */
 532         struct {
 533                 u32 pos;
 534                 u32 size;
 535                 bool enabled;
 536                 bool force_thru;
 537         } pch_pfit;
 538
 539         /* FDI configuration, only valid if has_pch_encoder is set. */
 540         int fdi_lanes;
 541         struct intel_link_m_n fdi_m_n;
 542
 543         bool ips_enabled;
 544
 545         bool enable_fbc;
 546
 547         bool double_wide;
 548
 549         bool dp_encoder_is_mst;
 550         int pbn;
 551
 552         struct intel_crtc_scaler_state scaler_state;
 553
 554         /* w/a for waiting 2 vblanks during crtc enable */
 555         enum pipe hsw_workaround_pipe;
 556
 557         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 558         bool disable_lp_wm;
 559
 560         struct {
 561                 /*
 562                  * Optimal watermarks, programmed post-vblank when this state
 563                  * is committed.
 564                  */
 565                 union {
 566                         struct intel_pipe_wm ilk;
 567                         struct skl_pipe_wm skl;
 568                 } optimal;
 569
 570                 /*
 571                  * Intermediate watermarks; these can be programmed immediately
 572                  * since they satisfy both the current configuration we're
 573                  * switching away from and the new configuration we're switching
 574                  * to.
 575                  */
 576                 struct intel_pipe_wm intermediate;
 577
 578                 /*
 579                  * Platforms with two-step watermark programming will need to
 580                  * update watermark programming post-vblank to switch from the
 581                  * safe intermediate watermarks to the optimal final
 582                  * watermarks.
 583                  */
 584                 bool need_postvbl_update;
 585         } wm;
 586
 587         /* Gamma mode programmed on the pipe */
 588         uint32_t gamma_mode;
 589 };
 590
 591 struct vlv_wm_state {
 592         struct vlv_pipe_wm wm[3];
 593         struct vlv_sr_wm sr[3];
 594         uint8_t num_active_planes;
 595         uint8_t num_levels;
 596         uint8_t level;
 597         bool cxsr;
 598 };
 599
 600 struct intel_mmio_flip {
 601         struct work_struct work;
 602         struct drm_i915_private *i915;
 603         struct drm_i915_gem_request *req;
 604         struct intel_crtc *crtc;
 605         unsigned int rotation;
 606 };
 607
 608 struct intel_crtc {
 609         struct drm_crtc base;
 610         enum pipe pipe;
 611         enum plane plane;
 612         u8 lut_r[256], lut_g[256], lut_b[256];
 613         /*
 614          * Whether the crtc and the connected output pipeline is active. Implies
 615          * that crtc->enabled is set, i.e. the current mode configuration has
 616          * some outputs connected to this crtc.
 617          */
 618         bool active;
 619         unsigned long enabled_power_domains;
 620         bool lowfreq_avail;
 621         struct intel_overlay *overlay;
 622         struct intel_unpin_work *unpin_work;
 623
 624         atomic_t unpin_work_count;
 625
 626         /* Display surface base address adjustement for pageflips. Note that on
 627          * gen4+ this only adjusts up to a tile, offsets within a tile are
 628          * handled in the hw itself (with the TILEOFF register). */
 629         u32 dspaddr_offset;
 630         int adjusted_x;
 631         int adjusted_y;
 632
 633         uint32_t cursor_addr;
 634         uint32_t cursor_cntl;
 635         uint32_t cursor_size;
 636         uint32_t cursor_base;
 637
 638         struct intel_crtc_state *config;
 639
 640         /* reset counter value when the last flip was submitted */
 641         unsigned int reset_counter;
 642
 643         /* Access to these should be protected by dev_priv->irq_lock. */
 644         bool cpu_fifo_underrun_disabled;
 645         bool pch_fifo_underrun_disabled;
 646
 647         /* per-pipe watermark state */
 648         struct {
 649                 /* watermarks currently being used  */
 650                 union {
 651                         struct intel_pipe_wm ilk;
 652                         struct skl_pipe_wm skl;
 653                 } active;
 654
 655                 /* allow CxSR on this pipe */
 656                 bool cxsr_allowed;
 657         } wm;
 658
 659         int scanline_offset;
 660
 661         struct {
 662                 unsigned start_vbl_count;
 663                 ktime_t start_vbl_time;
 664                 int min_vbl, max_vbl;
 665                 int scanline_start;
 666         } debug;
 667
 668         /* scalers available on this crtc */
 669         int num_scalers;
 670
 671         struct vlv_wm_state wm_state;
 672 };
 673
 674 struct intel_plane_wm_parameters {
 675         uint32_t horiz_pixels;
 676         uint32_t vert_pixels;
 677         /*
 678          *   For packed pixel formats:
 679          *     bytes_per_pixel - holds bytes per pixel
 680          *   For planar pixel formats:
 681          *     bytes_per_pixel - holds bytes per pixel for uv-plane
 682          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
 683          */
 684         uint8_t bytes_per_pixel;
 685         uint8_t y_bytes_per_pixel;
 686         bool enabled;
 687         bool scaled;
 688         u64 tiling;
 689         unsigned int rotation;
 690         uint16_t fifo_size;
 691 };
 692
 693 struct intel_plane {
 694         struct drm_plane base;
 695         int plane;
 696         enum pipe pipe;
 697         bool can_scale;
 698         int max_downscale;
 699         uint32_t frontbuffer_bit;
 700
 701         /* Since we need to change the watermarks before/after
 702          * enabling/disabling the planes, we need to store the parameters here
 703          * as the other pieces of the struct may not reflect the values we want
 704          * for the watermark calculations. Currently only Haswell uses this.
 705          */
 706         struct intel_plane_wm_parameters wm;
 707
 708         /*
 709          * NOTE: Do not place new plane state fields here (e.g., when adding
 710          * new plane properties).  New runtime state should now be placed in
 711          * the intel_plane_state structure and accessed via plane_state.
 712          */
 713
 714         void (*update_plane)(struct drm_plane *plane,
 715                              const struct intel_crtc_state *crtc_state,
 716                              const struct intel_plane_state *plane_state);
 717         void (*disable_plane)(struct drm_plane *plane,
 718                               struct drm_crtc *crtc);
 719         int (*check_plane)(struct drm_plane *plane,
 720                            struct intel_crtc_state *crtc_state,
 721                            struct intel_plane_state *state);
 722 };
 723
 724 struct intel_watermark_params {
 725         unsigned long fifo_size;
 726         unsigned long max_wm;
 727         unsigned long default_wm;
 728         unsigned long guard_size;
 729         unsigned long cacheline_size;
 730 };
 731
 732 struct cxsr_latency {
 733         int is_desktop;
 734         int is_ddr3;
 735         unsigned long fsb_freq;
 736         unsigned long mem_freq;
 737         unsigned long display_sr;
 738         unsigned long display_hpll_disable;
 739         unsigned long cursor_sr;
 740         unsigned long cursor_hpll_disable;
 741 };
 742
 743 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 744 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 745 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 746 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 747 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 748 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 749 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 750 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 751 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 752
 753 struct intel_hdmi {
 754         i915_reg_t hdmi_reg;
 755         int ddc_bus;
 756         bool limited_color_range;
 757         bool color_range_auto;
 758         bool has_hdmi_sink;
 759         bool has_audio;
 760         enum hdmi_force_audio force_audio;
 761         bool rgb_quant_range_selectable;
 762         enum hdmi_picture_aspect aspect_ratio;
 763         struct intel_connector *attached_connector;
 764         void (*write_infoframe)(struct drm_encoder *encoder,
 765                                 enum hdmi_infoframe_type type,
 766                                 const void *frame, ssize_t len);
 767         void (*set_infoframes)(struct drm_encoder *encoder,
 768                                bool enable,
 769                                const struct drm_display_mode *adjusted_mode);
 770         bool (*infoframe_enabled)(struct drm_encoder *encoder,
 771                                   const struct intel_crtc_state *pipe_config);
 772 };
 773
 774 struct intel_dp_mst_encoder;
 775 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 776
 777 /*
 778  * enum link_m_n_set:
 779  *      When platform provides two set of M_N registers for dp, we can
 780  *      program them and switch between them incase of DRRS.
 781  *      But When only one such register is provided, we have to program the
 782  *      required divider value on that registers itself based on the DRRS state.
 783  *
 784  * M1_N1        : Program dp_m_n on M1_N1 registers
 785  *                        dp_m2_n2 on M2_N2 registers (If supported)
 786  *
 787  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
 788  *                        M2_N2 registers are not supported
 789  */
 790
 791 enum link_m_n_set {
 792         /* Sets the m1_n1 and m2_n2 */
 793         M1_N1 = 0,
 794         M2_N2
 795 };
 796
 797 struct intel_dp {
 798         i915_reg_t output_reg;
 799         i915_reg_t aux_ch_ctl_reg;
 800         i915_reg_t aux_ch_data_reg[5];
 801         uint32_t DP;
 802         int link_rate;
 803         uint8_t lane_count;
 804         uint8_t sink_count;
 805         bool has_audio;
 806         bool detect_done;
 807         enum hdmi_force_audio force_audio;
 808         bool limited_color_range;
 809         bool color_range_auto;
 810         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 811         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 812         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 813         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
 814         uint8_t num_sink_rates;
 815         int sink_rates[DP_MAX_SUPPORTED_RATES];
 816         struct drm_dp_aux aux;
 817         uint8_t train_set[4];
 818         int panel_power_up_delay;
 819         int panel_power_down_delay;
 820         int panel_power_cycle_delay;
 821         int backlight_on_delay;
 822         int backlight_off_delay;
 823         struct delayed_work panel_vdd_work;
 824         bool want_panel_vdd;
 825         unsigned long last_power_on;
 826         unsigned long last_backlight_off;
 827         ktime_t panel_power_off_time;
 828
 829         struct notifier_block edp_notifier;
 830
 831         /*
 832          * Pipe whose power sequencer is currently locked into
 833          * this port. Only relevant on VLV/CHV.
 834          */
 835         enum pipe pps_pipe;
 836         struct edp_power_seq pps_delays;
 837
 838         bool can_mst; /* this port supports mst */
 839         bool is_mst;
 840         int active_mst_links;
 841         /* connector directly attached - won't be use for modeset in mst world */
 842         struct intel_connector *attached_connector;
 843
 844         /* mst connector list */
 845         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
 846         struct drm_dp_mst_topology_mgr mst_mgr;
 847
 848         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 849         /*
 850          * This function returns the value we have to program the AUX_CTL
 851          * register with to kick off an AUX transaction.
 852          */
 853         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 854                                      bool has_aux_irq,
 855                                      int send_bytes,
 856                                      uint32_t aux_clock_divider);
 857
 858         /* This is called before a link training is starterd */
 859         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
 860
 861         bool train_set_valid;
 862
 863         /* Displayport compliance testing */
 864         unsigned long compliance_test_type;
 865         unsigned long compliance_test_data;
 866         bool compliance_test_active;
 867 };
 868
 869 struct intel_digital_port {
 870         struct intel_encoder base;
 871         enum port port;
 872         u32 saved_port_bits;
 873         struct intel_dp dp;
 874         struct intel_hdmi hdmi;
 875         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 876         bool release_cl2_override;
 877         uint8_t max_lanes;
 878         /* for communication with audio component; protected by av_mutex */
 879         const struct drm_connector *audio_connector;
 880 };
 881
 882 struct intel_dp_mst_encoder {
 883         struct intel_encoder base;
 884         enum pipe pipe;
 885         struct intel_digital_port *primary;
 886         struct intel_connector *connector;
 887 };
 888
 889 static inline enum dpio_channel
 890 vlv_dport_to_channel(struct intel_digital_port *dport)
 891 {
 892         switch (dport->port) {
 893         case PORT_B:
 894         case PORT_D:
 895                 return DPIO_CH0;
 896         case PORT_C:
 897                 return DPIO_CH1;
 898         default:
 899                 BUG();
 900         }
 901 }
 902
 903 static inline enum dpio_phy
 904 vlv_dport_to_phy(struct intel_digital_port *dport)
 905 {
 906         switch (dport->port) {
 907         case PORT_B:
 908         case PORT_C:
 909                 return DPIO_PHY0;
 910         case PORT_D:
 911                 return DPIO_PHY1;
 912         default:
 913                 BUG();
 914         }
 915 }
 916
 917 static inline enum dpio_channel
 918 vlv_pipe_to_channel(enum pipe pipe)
 919 {
 920         switch (pipe) {
 921         case PIPE_A:
 922         case PIPE_C:
 923                 return DPIO_CH0;
 924         case PIPE_B:
 925                 return DPIO_CH1;
 926         default:
 927                 BUG();
 928         }
 929 }
 930
 931 static inline struct drm_crtc *
 932 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 933 {
 934         struct drm_i915_private *dev_priv = dev->dev_private;
 935         return dev_priv->pipe_to_crtc_mapping[pipe];
 936 }
 937
 938 static inline struct drm_crtc *
 939 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 940 {
 941         struct drm_i915_private *dev_priv = dev->dev_private;
 942         return dev_priv->plane_to_crtc_mapping[plane];
 943 }
 944
 945 struct intel_unpin_work {
 946         struct work_struct work;
 947         struct drm_crtc *crtc;
 948         struct drm_framebuffer *old_fb;
 949         struct drm_i915_gem_object *pending_flip_obj;
 950         struct drm_pending_vblank_event *event;
 951         atomic_t pending;
 952 #define INTEL_FLIP_INACTIVE     0
 953 #define INTEL_FLIP_PENDING      1
 954 #define INTEL_FLIP_COMPLETE     2
 955         u32 flip_count;
 956         u32 gtt_offset;
 957         struct drm_i915_gem_request *flip_queued_req;
 958         u32 flip_queued_vblank;
 959         u32 flip_ready_vblank;
 960         bool enable_stall_check;
 961 };
 962
 963 struct intel_load_detect_pipe {
 964         struct drm_atomic_state *restore_state;
 965 };
 966
 967 static inline struct intel_encoder *
 968 intel_attached_encoder(struct drm_connector *connector)
 969 {
 970         return to_intel_connector(connector)->encoder;
 971 }
 972
 973 static inline struct intel_digital_port *
 974 enc_to_dig_port(struct drm_encoder *encoder)
 975 {
 976         return container_of(encoder, struct intel_digital_port, base.base);
 977 }
 978
 979 static inline struct intel_dp_mst_encoder *
 980 enc_to_mst(struct drm_encoder *encoder)
 981 {
 982         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
 983 }
 984
 985 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 986 {
 987         return &enc_to_dig_port(encoder)->dp;
 988 }
 989
 990 static inline struct intel_digital_port *
 991 dp_to_dig_port(struct intel_dp *intel_dp)
 992 {
 993         return container_of(intel_dp, struct intel_digital_port, dp);
 994 }
 995
 996 static inline struct intel_digital_port *
 997 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 998 {
 999         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1000 }
1001
1002 /*
1003  * Returns the number of planes for this pipe, ie the number of sprites + 1
1004  * (primary plane). This doesn't count the cursor plane then.
1005  */
1006 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
1007 {
1008         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
1009 }
1010
1011 /* intel_fifo_underrun.c */
1012 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1013                                            enum pipe pipe, bool enable);
1014 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1015                                            enum transcoder pch_transcoder,
1016                                            bool enable);
1017 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1018                                          enum pipe pipe);
1019 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1020                                          enum transcoder pch_transcoder);
1021 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1022 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1023
1024 /* i915_irq.c */
1025 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1026 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1027 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1028 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1029 void gen6_reset_rps_interrupts(struct drm_device *dev);
1030 void gen6_enable_rps_interrupts(struct drm_device *dev);
1031 void gen6_disable_rps_interrupts(struct drm_device *dev);
1032 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
1033 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1034 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1035 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1036 {
1037         /*
1038          * We only use drm_irq_uninstall() at unload and VT switch, so
1039          * this is the only thing we need to check.
1040          */
1041         return dev_priv->pm.irqs_enabled;
1042 }
1043
1044 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1045 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1046                                      unsigned int pipe_mask);
1047 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1048                                      unsigned int pipe_mask);
1049
1050 /* intel_crt.c */
1051 void intel_crt_init(struct drm_device *dev);
1052
1053
1054 /* intel_ddi.c */
1055 void intel_ddi_clk_select(struct intel_encoder *encoder,
1056                           const struct intel_crtc_state *pipe_config);
1057 void intel_prepare_ddi_buffer(struct intel_encoder *encoder);
1058 void hsw_fdi_link_train(struct drm_crtc *crtc);
1059 void intel_ddi_init(struct drm_device *dev, enum port port);
1060 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
1061 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1062 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
1063 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
1064                                        enum transcoder cpu_transcoder);
1065 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
1066 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
1067 bool intel_ddi_pll_select(struct intel_crtc *crtc,
1068                           struct intel_crtc_state *crtc_state);
1069 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
1070 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1071 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1072 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
1073 void intel_ddi_get_config(struct intel_encoder *encoder,
1074                           struct intel_crtc_state *pipe_config);
1075 struct intel_encoder *
1076 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
1077
1078 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
1079 void intel_ddi_clock_get(struct intel_encoder *encoder,
1080                          struct intel_crtc_state *pipe_config);
1081 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
1082 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1083
1084 /* intel_frontbuffer.c */
1085 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
1086                              enum fb_op_origin origin);
1087 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
1088                                     unsigned frontbuffer_bits);
1089 void intel_frontbuffer_flip_complete(struct drm_device *dev,
1090                                      unsigned frontbuffer_bits);
1091 void intel_frontbuffer_flip(struct drm_device *dev,
1092                             unsigned frontbuffer_bits);
1093 unsigned int intel_fb_align_height(struct drm_device *dev,
1094                                    unsigned int height,
1095                                    uint32_t pixel_format,
1096                                    uint64_t fb_format_modifier);
1097 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
1098                         enum fb_op_origin origin);
1099 u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
1100                               uint64_t fb_modifier, uint32_t pixel_format);
1101
1102 /* intel_audio.c */
1103 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1104 void intel_audio_codec_enable(struct intel_encoder *encoder);
1105 void intel_audio_codec_disable(struct intel_encoder *encoder);
1106 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1107 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1108
1109 /* intel_display.c */
1110 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1111                       const char *name, u32 reg, int ref_freq);
1112 extern const struct drm_plane_funcs intel_plane_funcs;
1113 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1114 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1115 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1116 void intel_mark_busy(struct drm_device *dev);
1117 void intel_mark_idle(struct drm_device *dev);
1118 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1119 int intel_display_suspend(struct drm_device *dev);
1120 void intel_encoder_destroy(struct drm_encoder *encoder);
1121 int intel_connector_init(struct intel_connector *);
1122 struct intel_connector *intel_connector_alloc(void);
1123 bool intel_connector_get_hw_state(struct intel_connector *connector);
1124 void intel_connector_attach_encoder(struct intel_connector *connector,
1125                                     struct intel_encoder *encoder);
1126 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
1127 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1128                                              struct drm_crtc *crtc);
1129 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1130 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1131                                 struct drm_file *file_priv);
1132 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1133                                              enum pipe pipe);
1134 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
1135 static inline void
1136 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1137 {
1138         drm_wait_one_vblank(dev, pipe);
1139 }
1140 static inline void
1141 intel_wait_for_vblank_if_active(struct drm_device *dev, int pipe)
1142 {
1143         const struct intel_crtc *crtc =
1144                 to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
1145
1146         if (crtc->active)
1147                 intel_wait_for_vblank(dev, pipe);
1148 }
1149 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1150 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1151                          struct intel_digital_port *dport,
1152                          unsigned int expected_mask);
1153 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1154                                 struct drm_display_mode *mode,
1155                                 struct intel_load_detect_pipe *old,
1156                                 struct drm_modeset_acquire_ctx *ctx);
1157 void intel_release_load_detect_pipe(struct drm_connector *connector,
1158                                     struct intel_load_detect_pipe *old,
1159                                     struct drm_modeset_acquire_ctx *ctx);
1160 int intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
1161                                unsigned int rotation);
1162 struct drm_framebuffer *
1163 __intel_framebuffer_create(struct drm_device *dev,
1164                            struct drm_mode_fb_cmd2 *mode_cmd,
1165                            struct drm_i915_gem_object *obj);
1166 void intel_prepare_page_flip(struct drm_device *dev, int plane);
1167 void intel_finish_page_flip(struct drm_device *dev, int pipe);
1168 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
1169 void intel_check_page_flip(struct drm_device *dev, int pipe);
1170 int intel_prepare_plane_fb(struct drm_plane *plane,
1171                            const struct drm_plane_state *new_state);
1172 void intel_cleanup_plane_fb(struct drm_plane *plane,
1173                             const struct drm_plane_state *old_state);
1174 int intel_plane_atomic_get_property(struct drm_plane *plane,
1175                                     const struct drm_plane_state *state,
1176                                     struct drm_property *property,
1177                                     uint64_t *val);
1178 int intel_plane_atomic_set_property(struct drm_plane *plane,
1179                                     struct drm_plane_state *state,
1180                                     struct drm_property *property,
1181                                     uint64_t val);
1182 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1183                                     struct drm_plane_state *plane_state);
1184
1185 unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
1186                                uint64_t fb_modifier, unsigned int cpp);
1187
1188 static inline bool
1189 intel_rotation_90_or_270(unsigned int rotation)
1190 {
1191         return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
1192 }
1193
1194 void intel_create_rotation_property(struct drm_device *dev,
1195                                         struct intel_plane *plane);
1196
1197 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1198                                     enum pipe pipe);
1199
1200 int vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
1201                      const struct dpll *dpll);
1202 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
1203 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1204
1205 /* modesetting asserts */
1206 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1207                            enum pipe pipe);
1208 void assert_pll(struct drm_i915_private *dev_priv,
1209                 enum pipe pipe, bool state);
1210 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1211 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1212 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1213 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1214 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1215 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1216                        enum pipe pipe, bool state);
1217 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1218 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1219 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1220 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1221 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1222 u32 intel_compute_tile_offset(int *x, int *y,
1223                               const struct drm_framebuffer *fb, int plane,
1224                               unsigned int pitch,
1225                               unsigned int rotation);
1226 void intel_prepare_reset(struct drm_device *dev);
1227 void intel_finish_reset(struct drm_device *dev);
1228 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1229 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1230 void broxton_init_cdclk(struct drm_i915_private *dev_priv);
1231 void broxton_uninit_cdclk(struct drm_i915_private *dev_priv);
1232 bool broxton_cdclk_verify_state(struct drm_i915_private *dev_priv);
1233 void broxton_ddi_phy_init(struct drm_i915_private *dev_priv);
1234 void broxton_ddi_phy_uninit(struct drm_i915_private *dev_priv);
1235 void broxton_ddi_phy_verify_state(struct drm_i915_private *dev_priv);
1236 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1237 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1238 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1239 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1240 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1241 int skl_sanitize_cdclk(struct drm_i915_private *dev_priv);
1242 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1243 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1244 void skl_disable_dc6(struct drm_i915_private *dev_priv);
1245 void intel_dp_get_m_n(struct intel_crtc *crtc,
1246                       struct intel_crtc_state *pipe_config);
1247 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1248 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1249 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1250                         intel_clock_t *best_clock);
1251 int chv_calc_dpll_params(int refclk, intel_clock_t *pll_clock);
1252
1253 bool intel_crtc_active(struct drm_crtc *crtc);
1254 void hsw_enable_ips(struct intel_crtc *crtc);
1255 void hsw_disable_ips(struct intel_crtc *crtc);
1256 enum intel_display_power_domain
1257 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1258 enum intel_display_power_domain
1259 intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder);
1260 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1261                                  struct intel_crtc_state *pipe_config);
1262
1263 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1264 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1265
1266 u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
1267                            struct drm_i915_gem_object *obj,
1268                            unsigned int plane);
1269
1270 u32 skl_plane_ctl_format(uint32_t pixel_format);
1271 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1272 u32 skl_plane_ctl_rotation(unsigned int rotation);
1273
1274 /* intel_csr.c */
1275 void intel_csr_ucode_init(struct drm_i915_private *);
1276 void intel_csr_load_program(struct drm_i915_private *);
1277 void intel_csr_ucode_fini(struct drm_i915_private *);
1278 void intel_csr_ucode_suspend(struct drm_i915_private *);
1279 void intel_csr_ucode_resume(struct drm_i915_private *);
1280
1281 /* intel_dp.c */
1282 void intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
1283 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1284                              struct intel_connector *intel_connector);
1285 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1286                               const struct intel_crtc_state *pipe_config);
1287 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1288 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1289 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1290 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1291 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1292 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1293 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1294 bool intel_dp_compute_config(struct intel_encoder *encoder,
1295                              struct intel_crtc_state *pipe_config);
1296 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1297 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1298                                   bool long_hpd);
1299 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1300 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1301 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1302 void intel_edp_panel_on(struct intel_dp *intel_dp);
1303 void intel_edp_panel_off(struct intel_dp *intel_dp);
1304 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1305 void intel_dp_mst_suspend(struct drm_device *dev);
1306 void intel_dp_mst_resume(struct drm_device *dev);
1307 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1308 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1309 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1310 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1311 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1312 void intel_plane_destroy(struct drm_plane *plane);
1313 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1314 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1315 void intel_edp_drrs_invalidate(struct drm_device *dev,
1316                 unsigned frontbuffer_bits);
1317 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1318 bool intel_digital_port_connected(struct drm_i915_private *dev_priv,
1319                                          struct intel_digital_port *port);
1320
1321 void
1322 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1323                                        uint8_t dp_train_pat);
1324 void
1325 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1326 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1327 uint8_t
1328 intel_dp_voltage_max(struct intel_dp *intel_dp);
1329 uint8_t
1330 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1331 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1332                            uint8_t *link_bw, uint8_t *rate_select);
1333 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1334 bool
1335 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1336
1337 /* intel_dp_mst.c */
1338 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1339 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1340 /* intel_dsi.c */
1341 void intel_dsi_init(struct drm_device *dev);
1342
1343
1344 /* intel_dvo.c */
1345 void intel_dvo_init(struct drm_device *dev);
1346
1347
1348 /* legacy fbdev emulation in intel_fbdev.c */
1349 #ifdef CONFIG_DRM_FBDEV_EMULATION
1350 extern int intel_fbdev_init(struct drm_device *dev);
1351 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1352 extern void intel_fbdev_fini(struct drm_device *dev);
1353 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1354 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1355 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1356 #else
1357 static inline int intel_fbdev_init(struct drm_device *dev)
1358 {
1359         return 0;
1360 }
1361
1362 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1363 {
1364 }
1365
1366 static inline void intel_fbdev_fini(struct drm_device *dev)
1367 {
1368 }
1369
1370 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1371 {
1372 }
1373
1374 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1375 {
1376 }
1377 #endif
1378
1379 /* intel_fbc.c */
1380 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1381                            struct drm_atomic_state *state);
1382 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1383 void intel_fbc_pre_update(struct intel_crtc *crtc);
1384 void intel_fbc_post_update(struct intel_crtc *crtc);
1385 void intel_fbc_init(struct drm_i915_private *dev_priv);
1386 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1387 void intel_fbc_enable(struct intel_crtc *crtc);
1388 void intel_fbc_disable(struct intel_crtc *crtc);
1389 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1390 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1391                           unsigned int frontbuffer_bits,
1392                           enum fb_op_origin origin);
1393 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1394                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1395 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1396
1397 /* intel_hdmi.c */
1398 void intel_hdmi_init(struct drm_device *dev, i915_reg_t hdmi_reg, enum port port);
1399 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1400                                struct intel_connector *intel_connector);
1401 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1402 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1403                                struct intel_crtc_state *pipe_config);
1404
1405
1406 /* intel_lvds.c */
1407 void intel_lvds_init(struct drm_device *dev);
1408 bool intel_is_dual_link_lvds(struct drm_device *dev);
1409
1410
1411 /* intel_modes.c */
1412 int intel_connector_update_modes(struct drm_connector *connector,
1413                                  struct edid *edid);
1414 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1415 void intel_attach_force_audio_property(struct drm_connector *connector);
1416 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1417 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1418
1419
1420 /* intel_overlay.c */
1421 void intel_setup_overlay(struct drm_device *dev);
1422 void intel_cleanup_overlay(struct drm_device *dev);
1423 int intel_overlay_switch_off(struct intel_overlay *overlay);
1424 int intel_overlay_put_image(struct drm_device *dev, void *data,
1425                             struct drm_file *file_priv);
1426 int intel_overlay_attrs(struct drm_device *dev, void *data,
1427                         struct drm_file *file_priv);
1428 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1429
1430
1431 /* intel_panel.c */
1432 int intel_panel_init(struct intel_panel *panel,
1433                      struct drm_display_mode *fixed_mode,
1434                      struct drm_display_mode *downclock_mode);
1435 void intel_panel_fini(struct intel_panel *panel);
1436 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1437                             struct drm_display_mode *adjusted_mode);
1438 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1439                              struct intel_crtc_state *pipe_config,
1440                              int fitting_mode);
1441 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1442                               struct intel_crtc_state *pipe_config,
1443                               int fitting_mode);
1444 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1445                                     u32 level, u32 max);
1446 int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe);
1447 void intel_panel_enable_backlight(struct intel_connector *connector);
1448 void intel_panel_disable_backlight(struct intel_connector *connector);
1449 void intel_panel_destroy_backlight(struct drm_connector *connector);
1450 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1451 extern struct drm_display_mode *intel_find_panel_downclock(
1452                                 struct drm_device *dev,
1453                                 struct drm_display_mode *fixed_mode,
1454                                 struct drm_connector *connector);
1455 void intel_backlight_register(struct drm_device *dev);
1456 void intel_backlight_unregister(struct drm_device *dev);
1457
1458
1459 /* intel_psr.c */
1460 void intel_psr_enable(struct intel_dp *intel_dp);
1461 void intel_psr_disable(struct intel_dp *intel_dp);
1462 void intel_psr_invalidate(struct drm_device *dev,
1463                           unsigned frontbuffer_bits);
1464 void intel_psr_flush(struct drm_device *dev,
1465                      unsigned frontbuffer_bits,
1466                      enum fb_op_origin origin);
1467 void intel_psr_init(struct drm_device *dev);
1468 void intel_psr_single_frame_update(struct drm_device *dev,
1469                                    unsigned frontbuffer_bits);
1470
1471 /* intel_runtime_pm.c */
1472 int intel_power_domains_init(struct drm_i915_private *);
1473 void intel_power_domains_fini(struct drm_i915_private *);
1474 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1475 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1476 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
1477 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
1478 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1479 const char *
1480 intel_display_power_domain_str(enum intel_display_power_domain domain);
1481
1482 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1483                                     enum intel_display_power_domain domain);
1484 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1485                                       enum intel_display_power_domain domain);
1486 void intel_display_power_get(struct drm_i915_private *dev_priv,
1487                              enum intel_display_power_domain domain);
1488 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1489                                         enum intel_display_power_domain domain);
1490 void intel_display_power_put(struct drm_i915_private *dev_priv,
1491                              enum intel_display_power_domain domain);
1492
1493 static inline void
1494 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1495 {
1496         WARN_ONCE(dev_priv->pm.suspended,
1497                   "Device suspended during HW access\n");
1498 }
1499
1500 static inline void
1501 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1502 {
1503         assert_rpm_device_not_suspended(dev_priv);
1504         /* FIXME: Needs to be converted back to WARN_ONCE, but currently causes
1505          * too much noise. */
1506         if (!atomic_read(&dev_priv->pm.wakeref_count))
1507                 DRM_DEBUG_DRIVER("RPM wakelock ref not held during HW access");
1508 }
1509
1510 static inline int
1511 assert_rpm_atomic_begin(struct drm_i915_private *dev_priv)
1512 {
1513         int seq = atomic_read(&dev_priv->pm.atomic_seq);
1514
1515         assert_rpm_wakelock_held(dev_priv);
1516
1517         return seq;
1518 }
1519
1520 static inline void
1521 assert_rpm_atomic_end(struct drm_i915_private *dev_priv, int begin_seq)
1522 {
1523         WARN_ONCE(atomic_read(&dev_priv->pm.atomic_seq) != begin_seq,
1524                   "HW access outside of RPM atomic section\n");
1525 }
1526
1527 /**
1528  * disable_rpm_wakeref_asserts - disable the RPM assert checks
1529  * @dev_priv: i915 device instance
1530  *
1531  * This function disable asserts that check if we hold an RPM wakelock
1532  * reference, while keeping the device-not-suspended checks still enabled.
1533  * It's meant to be used only in special circumstances where our rule about
1534  * the wakelock refcount wrt. the device power state doesn't hold. According
1535  * to this rule at any point where we access the HW or want to keep the HW in
1536  * an active state we must hold an RPM wakelock reference acquired via one of
1537  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1538  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1539  * forcewake release timer, and the GPU RPS and hangcheck works. All other
1540  * users should avoid using this function.
1541  *
1542  * Any calls to this function must have a symmetric call to
1543  * enable_rpm_wakeref_asserts().
1544  */
1545 static inline void
1546 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1547 {
1548         atomic_inc(&dev_priv->pm.wakeref_count);
1549 }
1550
1551 /**
1552  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
1553  * @dev_priv: i915 device instance
1554  *
1555  * This function re-enables the RPM assert checks after disabling them with
1556  * disable_rpm_wakeref_asserts. It's meant to be used only in special
1557  * circumstances otherwise its use should be avoided.
1558  *
1559  * Any calls to this function must have a symmetric call to
1560  * disable_rpm_wakeref_asserts().
1561  */
1562 static inline void
1563 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1564 {
1565         atomic_dec(&dev_priv->pm.wakeref_count);
1566 }
1567
1568 /* TODO: convert users of these to rely instead on proper RPM refcounting */
1569 #define DISABLE_RPM_WAKEREF_ASSERTS(dev_priv)   \
1570         disable_rpm_wakeref_asserts(dev_priv)
1571
1572 #define ENABLE_RPM_WAKEREF_ASSERTS(dev_priv)    \
1573         enable_rpm_wakeref_asserts(dev_priv)
1574
1575 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1576 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
1577 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1578 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1579
1580 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1581
1582 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1583                              bool override, unsigned int mask);
1584 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1585                           enum dpio_channel ch, bool override);
1586
1587
1588 /* intel_pm.c */
1589 void intel_init_clock_gating(struct drm_device *dev);
1590 void intel_suspend_hw(struct drm_device *dev);
1591 int ilk_wm_max_level(const struct drm_device *dev);
1592 void intel_update_watermarks(struct drm_crtc *crtc);
1593 void intel_init_pm(struct drm_device *dev);
1594 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
1595 void intel_pm_setup(struct drm_device *dev);
1596 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1597 void intel_gpu_ips_teardown(void);
1598 void intel_init_gt_powersave(struct drm_device *dev);
1599 void intel_cleanup_gt_powersave(struct drm_device *dev);
1600 void intel_enable_gt_powersave(struct drm_device *dev);
1601 void intel_disable_gt_powersave(struct drm_device *dev);
1602 void intel_suspend_gt_powersave(struct drm_device *dev);
1603 void intel_reset_gt_powersave(struct drm_device *dev);
1604 void gen6_update_ring_freq(struct drm_device *dev);
1605 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1606 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1607 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1608 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1609                     struct intel_rps_client *rps,
1610                     unsigned long submitted);
1611 void intel_queue_rps_boost_for_request(struct drm_device *dev,
1612                                        struct drm_i915_gem_request *req);
1613 void vlv_wm_get_hw_state(struct drm_device *dev);
1614 void ilk_wm_get_hw_state(struct drm_device *dev);
1615 void skl_wm_get_hw_state(struct drm_device *dev);
1616 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1617                           struct skl_ddb_allocation *ddb /* out */);
1618 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1619 bool ilk_disable_lp_wm(struct drm_device *dev);
1620 int sanitize_rc6_option(const struct drm_device *dev, int enable_rc6);
1621
1622 /* intel_sdvo.c */
1623 bool intel_sdvo_init(struct drm_device *dev,
1624                      i915_reg_t reg, enum port port);
1625
1626
1627 /* intel_sprite.c */
1628 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1629 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1630                               struct drm_file *file_priv);
1631 void intel_pipe_update_start(struct intel_crtc *crtc);
1632 void intel_pipe_update_end(struct intel_crtc *crtc);
1633
1634 /* intel_tv.c */
1635 void intel_tv_init(struct drm_device *dev);
1636
1637 /* intel_atomic.c */
1638 int intel_connector_atomic_get_property(struct drm_connector *connector,
1639                                         const struct drm_connector_state *state,
1640                                         struct drm_property *property,
1641                                         uint64_t *val);
1642 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1643 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1644                                struct drm_crtc_state *state);
1645 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1646 void intel_atomic_state_clear(struct drm_atomic_state *);
1647 struct intel_shared_dpll_config *
1648 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1649
1650 static inline struct intel_crtc_state *
1651 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1652                             struct intel_crtc *crtc)
1653 {
1654         struct drm_crtc_state *crtc_state;
1655         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1656         if (IS_ERR(crtc_state))
1657                 return ERR_CAST(crtc_state);
1658
1659         return to_intel_crtc_state(crtc_state);
1660 }
1661
1662 static inline struct intel_plane_state *
1663 intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
1664                                       struct intel_plane *plane)
1665 {
1666         struct drm_plane_state *plane_state;
1667
1668         plane_state = drm_atomic_get_existing_plane_state(state, &plane->base);
1669
1670         return to_intel_plane_state(plane_state);
1671 }
1672
1673 int intel_atomic_setup_scalers(struct drm_device *dev,
1674         struct intel_crtc *intel_crtc,
1675         struct intel_crtc_state *crtc_state);
1676
1677 /* intel_atomic_plane.c */
1678 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1679 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1680 void intel_plane_destroy_state(struct drm_plane *plane,
1681                                struct drm_plane_state *state);
1682 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1683
1684 /* intel_color.c */
1685 void intel_color_init(struct drm_crtc *crtc);
1686 int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
1687 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
1688 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
1689
1690 #endif /* __INTEL_DRV_H__ */