sys/dev/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_dual_mode_helper.h>
  37 #include <drm/drm_dp_mst_helper.h>
  38 #include <drm/drm_rect.h>
  39 #include <drm/drm_atomic.h>
  40
  41 /**
  42  * _wait_for - magic (register) wait macro
  43  *
  44  * Does the right thing for modeset paths when run under kdgb or similar atomic
  45  * contexts. Note that it's important that we check the condition again after
  46  * having timed out, since the timeout could be due to preemption or similar and
  47  * we've never had a chance to check the condition before the timeout.
  48  *
  49  * TODO: When modesetting has fully transitioned to atomic, the below
  50  * drm_can_sleep() can be removed and in_atomic()/!in_atomic() asserts
  51  * added.
  52  */
  53 #define _wait_for(COND, US, W) ({ \
  54         unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1;   \
  55         int ret__ = 0;                                                  \
  56         while (!(COND)) {                                               \
  57                 if (time_after(jiffies, timeout__)) {                   \
  58                         if (!(COND))                                    \
  59                                 ret__ = -ETIMEDOUT;                     \
  60                         break;                                          \
  61                 }                                                       \
  62                 if ((W) && drm_can_sleep()) {                           \
  63                         usleep_range((W), (W)*2);                       \
  64                 } else {                                                \
  65                         cpu_relax();                                    \
  66                 }                                                       \
  67         }                                                               \
  68         ret__;                                                          \
  69 })
  70
  71 #define wait_for(COND, MS)              _wait_for((COND), (MS) * 1000, 1000)
  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(ATOMIC) WARN_ON_ONCE((ATOMIC) && !in_atomic())
  76 #else
  77 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) do { } while (0)
  78 #endif
  79
  80 #define _wait_for_atomic(COND, US, ATOMIC) \
  81 ({ \
  82         int cpu, ret, timeout = (US) * 1000; \
  83         u64 base; \
  84         _WAIT_FOR_ATOMIC_CHECK(ATOMIC); \
  85         BUILD_BUG_ON((US) > 50000); \
  86         if (!(ATOMIC)) { \
  87                 preempt_disable(); \
  88                 cpu = smp_processor_id(); \
  89         } \
  90         base = local_clock(); \
  91         for (;;) { \
  92                 u64 now = local_clock(); \
  93                 if (!(ATOMIC)) \
  94                         preempt_enable(); \
  95                 if (COND) { \
  96                         ret = 0; \
  97                         break; \
  98                 } \
  99                 if (now - base >= timeout) { \
 100                         ret = -ETIMEDOUT; \
 101                         break; \
 102                 } \
 103                 cpu_relax(); \
 104                 if (!(ATOMIC)) { \
 105                         preempt_disable(); \
 106                         if (unlikely(cpu != smp_processor_id())) { \
 107                                 timeout -= now - base; \
 108                                 cpu = smp_processor_id(); \
 109                                 base = local_clock(); \
 110                         } \
 111                 } \
 112         } \
 113         ret; \
 114 })
 115
 116 #define wait_for_us(COND, US) \
 117 ({ \
 118         int ret__; \
 119         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 120         if ((US) > 10) \
 121                 ret__ = _wait_for((COND), (US), 10); \
 122         else \
 123                 ret__ = _wait_for_atomic((COND), (US), 0); \
 124         ret__; \
 125 })
 126
 127 #define wait_for_atomic(COND, MS)       _wait_for_atomic((COND), (MS) * 1000, 1)
 128 #define wait_for_atomic_us(COND, US)    _wait_for_atomic((COND), (US), 1)
 129
 130 #define KHz(x) (1000 * (x))
 131 #define MHz(x) KHz(1000 * (x))
 132
 133 /*
 134  * Display related stuff
 135  */
 136
 137 /* store information about an Ixxx DVO */
 138 /* The i830->i865 use multiple DVOs with multiple i2cs */
 139 /* the i915, i945 have a single sDVO i2c bus - which is different */
 140 #define MAX_OUTPUTS 6
 141 /* maximum connectors per crtcs in the mode set */
 142
 143 /* Maximum cursor sizes */
 144 #define GEN2_CURSOR_WIDTH 64
 145 #define GEN2_CURSOR_HEIGHT 64
 146 #define MAX_CURSOR_WIDTH 256
 147 #define MAX_CURSOR_HEIGHT 256
 148
 149 #define INTEL_I2C_BUS_DVO 1
 150 #define INTEL_I2C_BUS_SDVO 2
 151
 152 /* these are outputs from the chip - integrated only
 153    external chips are via DVO or SDVO output */
 154 enum intel_output_type {
 155         INTEL_OUTPUT_UNUSED = 0,
 156         INTEL_OUTPUT_ANALOG = 1,
 157         INTEL_OUTPUT_DVO = 2,
 158         INTEL_OUTPUT_SDVO = 3,
 159         INTEL_OUTPUT_LVDS = 4,
 160         INTEL_OUTPUT_TVOUT = 5,
 161         INTEL_OUTPUT_HDMI = 6,
 162         INTEL_OUTPUT_DP = 7,
 163         INTEL_OUTPUT_EDP = 8,
 164         INTEL_OUTPUT_DSI = 9,
 165         INTEL_OUTPUT_UNKNOWN = 10,
 166         INTEL_OUTPUT_DP_MST = 11,
 167 };
 168
 169 #define INTEL_DVO_CHIP_NONE 0
 170 #define INTEL_DVO_CHIP_LVDS 1
 171 #define INTEL_DVO_CHIP_TMDS 2
 172 #define INTEL_DVO_CHIP_TVOUT 4
 173
 174 #define INTEL_DSI_VIDEO_MODE    0
 175 #define INTEL_DSI_COMMAND_MODE  1
 176
 177 struct intel_framebuffer {
 178         struct drm_framebuffer base;
 179         struct drm_i915_gem_object *obj;
 180         struct intel_rotation_info rot_info;
 181 };
 182
 183 struct intel_fbdev {
 184         struct drm_fb_helper helper;
 185         struct intel_framebuffer *fb;
 186         async_cookie_t cookie;
 187         int preferred_bpp;
 188 };
 189
 190 struct intel_encoder {
 191         struct drm_encoder base;
 192
 193         enum intel_output_type type;
 194         unsigned int cloneable;
 195         void (*hot_plug)(struct intel_encoder *);
 196         bool (*compute_config)(struct intel_encoder *,
 197                                struct intel_crtc_state *);
 198         void (*pre_pll_enable)(struct intel_encoder *);
 199         void (*pre_enable)(struct intel_encoder *);
 200         void (*enable)(struct intel_encoder *);
 201         void (*mode_set)(struct intel_encoder *intel_encoder);
 202         void (*disable)(struct intel_encoder *);
 203         void (*post_disable)(struct intel_encoder *);
 204         void (*post_pll_disable)(struct intel_encoder *);
 205         /* Read out the current hw state of this connector, returning true if
 206          * the encoder is active. If the encoder is enabled it also set the pipe
 207          * it is connected to in the pipe parameter. */
 208         bool (*get_hw_state)(struct intel_encoder *, enum i915_pipe *pipe);
 209         /* Reconstructs the equivalent mode flags for the current hardware
 210          * state. This must be called _after_ display->get_pipe_config has
 211          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 212          * be set correctly before calling this function. */
 213         void (*get_config)(struct intel_encoder *,
 214                            struct intel_crtc_state *pipe_config);
 215         /*
 216          * Called during system suspend after all pending requests for the
 217          * encoder are flushed (for example for DP AUX transactions) and
 218          * device interrupts are disabled.
 219          */
 220         void (*suspend)(struct intel_encoder *);
 221         int crtc_mask;
 222         enum hpd_pin hpd_pin;
 223 };
 224
 225 struct intel_panel {
 226         struct drm_display_mode *fixed_mode;
 227         struct drm_display_mode *downclock_mode;
 228         int fitting_mode;
 229
 230         /* backlight */
 231         struct {
 232                 bool present;
 233                 u32 level;
 234                 u32 min;
 235                 u32 max;
 236                 bool enabled;
 237                 bool combination_mode;  /* gen 2/4 only */
 238                 bool active_low_pwm;
 239                 bool alternate_pwm_increment;   /* lpt+ */
 240
 241                 /* PWM chip */
 242                 bool util_pin_active_low;       /* bxt+ */
 243                 u8 controller;          /* bxt+ only */
 244                 struct pwm_device *pwm;
 245
 246                 struct backlight_device *device;
 247
 248                 /* Connector and platform specific backlight functions */
 249                 int (*setup)(struct intel_connector *connector, enum i915_pipe pipe);
 250                 uint32_t (*get)(struct intel_connector *connector);
 251                 void (*set)(struct intel_connector *connector, uint32_t level);
 252                 void (*disable)(struct intel_connector *connector);
 253                 void (*enable)(struct intel_connector *connector);
 254                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 255                                       uint32_t hz);
 256                 void (*power)(struct intel_connector *, bool enable);
 257         } backlight;
 258 };
 259
 260 struct intel_connector {
 261         struct drm_connector base;
 262         /*
 263          * The fixed encoder this connector is connected to.
 264          */
 265         struct intel_encoder *encoder;
 266
 267         /* Reads out the current hw, returning true if the connector is enabled
 268          * and active (i.e. dpms ON state). */
 269         bool (*get_hw_state)(struct intel_connector *);
 270
 271         /* Panel info for eDP and LVDS */
 272         struct intel_panel panel;
 273
 274         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 275         struct edid *edid;
 276         struct edid *detect_edid;
 277
 278         /* since POLL and HPD connectors may use the same HPD line keep the native
 279            state of connector->polled in case hotplug storm detection changes it */
 280         u8 polled;
 281
 282         void *port; /* store this opaque as its illegal to dereference it */
 283
 284         struct intel_dp *mst_port;
 285 };
 286
 287 struct dpll {
 288         /* given values */
 289         int n;
 290         int m1, m2;
 291         int p1, p2;
 292         /* derived values */
 293         int     dot;
 294         int     vco;
 295         int     m;
 296         int     p;
 297 };
 298
 299 struct intel_atomic_state {
 300         struct drm_atomic_state base;
 301
 302         unsigned int cdclk;
 303
 304         /*
 305          * Calculated device cdclk, can be different from cdclk
 306          * only when all crtc's are DPMS off.
 307          */
 308         unsigned int dev_cdclk;
 309
 310         bool dpll_set, modeset;
 311
 312         /*
 313          * Does this transaction change the pipes that are active?  This mask
 314          * tracks which CRTC's have changed their active state at the end of
 315          * the transaction (not counting the temporary disable during modesets).
 316          * This mask should only be non-zero when intel_state->modeset is true,
 317          * but the converse is not necessarily true; simply changing a mode may
 318          * not flip the final active status of any CRTC's
 319          */
 320         unsigned int active_pipe_changes;
 321
 322         unsigned int active_crtcs;
 323         unsigned int min_pixclk[I915_MAX_PIPES];
 324
 325         /* SKL/KBL Only */
 326         unsigned int cdclk_pll_vco;
 327
 328         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
 329
 330         /*
 331          * Current watermarks can't be trusted during hardware readout, so
 332          * don't bother calculating intermediate watermarks.
 333          */
 334         bool skip_intermediate_wm;
 335
 336         /* Gen9+ only */
 337         struct skl_wm_values wm_results;
 338 };
 339
 340 struct intel_plane_state {
 341         struct drm_plane_state base;
 342         struct drm_rect src;
 343         struct drm_rect dst;
 344         struct drm_rect clip;
 345         bool visible;
 346
 347         /*
 348          * scaler_id
 349          *    = -1 : not using a scaler
 350          *    >=  0 : using a scalers
 351          *
 352          * plane requiring a scaler:
 353          *   - During check_plane, its bit is set in
 354          *     crtc_state->scaler_state.scaler_users by calling helper function
 355          *     update_scaler_plane.
 356          *   - scaler_id indicates the scaler it got assigned.
 357          *
 358          * plane doesn't require a scaler:
 359          *   - this can happen when scaling is no more required or plane simply
 360          *     got disabled.
 361          *   - During check_plane, corresponding bit is reset in
 362          *     crtc_state->scaler_state.scaler_users by calling helper function
 363          *     update_scaler_plane.
 364          */
 365         int scaler_id;
 366
 367         struct drm_intel_sprite_colorkey ckey;
 368
 369         /* async flip related structures */
 370         struct drm_i915_gem_request *wait_req;
 371 };
 372
 373 struct intel_initial_plane_config {
 374         struct intel_framebuffer *fb;
 375         unsigned int tiling;
 376         int size;
 377         u32 base;
 378 };
 379
 380 #define SKL_MIN_SRC_W 8
 381 #define SKL_MAX_SRC_W 4096
 382 #define SKL_MIN_SRC_H 8
 383 #define SKL_MAX_SRC_H 4096
 384 #define SKL_MIN_DST_W 8
 385 #define SKL_MAX_DST_W 4096
 386 #define SKL_MIN_DST_H 8
 387 #define SKL_MAX_DST_H 4096
 388
 389 struct intel_scaler {
 390         int in_use;
 391         uint32_t mode;
 392 };
 393
 394 struct intel_crtc_scaler_state {
 395 #define SKL_NUM_SCALERS 2
 396         struct intel_scaler scalers[SKL_NUM_SCALERS];
 397
 398         /*
 399          * scaler_users: keeps track of users requesting scalers on this crtc.
 400          *
 401          *     If a bit is set, a user is using a scaler.
 402          *     Here user can be a plane or crtc as defined below:
 403          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 404          *       bit 31    - crtc
 405          *
 406          * Instead of creating a new index to cover planes and crtc, using
 407          * existing drm_plane_index for planes which is well less than 31
 408          * planes and bit 31 for crtc. This should be fine to cover all
 409          * our platforms.
 410          *
 411          * intel_atomic_setup_scalers will setup available scalers to users
 412          * requesting scalers. It will gracefully fail if request exceeds
 413          * avilability.
 414          */
 415 #define SKL_CRTC_INDEX 31
 416         unsigned scaler_users;
 417
 418         /* scaler used by crtc for panel fitting purpose */
 419         int scaler_id;
 420 };
 421
 422 /* drm_mode->private_flags */
 423 #define I915_MODE_FLAG_INHERITED 1
 424
 425 struct intel_pipe_wm {
 426         struct intel_wm_level wm[5];
 427         struct intel_wm_level raw_wm[5];
 428         uint32_t linetime;
 429         bool fbc_wm_enabled;
 430         bool pipe_enabled;
 431         bool sprites_enabled;
 432         bool sprites_scaled;
 433 };
 434
 435 struct skl_pipe_wm {
 436         struct skl_wm_level wm[8];
 437         struct skl_wm_level trans_wm;
 438         uint32_t linetime;
 439 };
 440
 441 struct intel_crtc_wm_state {
 442         union {
 443                 struct {
 444                         /*
 445                          * Intermediate watermarks; these can be
 446                          * programmed immediately since they satisfy
 447                          * both the current configuration we're
 448                          * switching away from and the new
 449                          * configuration we're switching to.
 450                          */
 451                         struct intel_pipe_wm intermediate;
 452
 453                         /*
 454                          * Optimal watermarks, programmed post-vblank
 455                          * when this state is committed.
 456                          */
 457                         struct intel_pipe_wm optimal;
 458                 } ilk;
 459
 460                 struct {
 461                         /* gen9+ only needs 1-step wm programming */
 462                         struct skl_pipe_wm optimal;
 463
 464                         /* cached plane data rate */
 465                         unsigned plane_data_rate[I915_MAX_PLANES];
 466                         unsigned plane_y_data_rate[I915_MAX_PLANES];
 467
 468                         /* minimum block allocation */
 469                         uint16_t minimum_blocks[I915_MAX_PLANES];
 470                         uint16_t minimum_y_blocks[I915_MAX_PLANES];
 471                 } skl;
 472         };
 473
 474         /*
 475          * Platforms with two-step watermark programming will need to
 476          * update watermark programming post-vblank to switch from the
 477          * safe intermediate watermarks to the optimal final
 478          * watermarks.
 479          */
 480         bool need_postvbl_update;
 481 };
 482
 483 struct intel_crtc_state {
 484         struct drm_crtc_state base;
 485
 486         /**
 487          * quirks - bitfield with hw state readout quirks
 488          *
 489          * For various reasons the hw state readout code might not be able to
 490          * completely faithfully read out the current state. These cases are
 491          * tracked with quirk flags so that fastboot and state checker can act
 492          * accordingly.
 493          */
 494 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 495         unsigned long quirks;
 496
 497         unsigned fb_bits; /* framebuffers to flip */
 498         bool update_pipe; /* can a fast modeset be performed? */
 499         bool disable_cxsr;
 500         bool update_wm_pre, update_wm_post; /* watermarks are updated */
 501         bool fb_changed; /* fb on any of the planes is changed */
 502
 503         /* Pipe source size (ie. panel fitter input size)
 504          * All planes will be positioned inside this space,
 505          * and get clipped at the edges. */
 506         int pipe_src_w, pipe_src_h;
 507
 508         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 509          * between pch encoders and cpu encoders. */
 510         bool has_pch_encoder;
 511
 512         /* Are we sending infoframes on the attached port */
 513         bool has_infoframe;
 514
 515         /* CPU Transcoder for the pipe. Currently this can only differ from the
 516          * pipe on Haswell and later (where we have a special eDP transcoder)
 517          * and Broxton (where we have special DSI transcoders). */
 518         enum transcoder cpu_transcoder;
 519
 520         /*
 521          * Use reduced/limited/broadcast rbg range, compressing from the full
 522          * range fed into the crtcs.
 523          */
 524         bool limited_color_range;
 525
 526         /* Bitmask of encoder types (enum intel_output_type)
 527          * driven by the pipe.
 528          */
 529         unsigned int output_types;
 530
 531         /* Whether we should send NULL infoframes. Required for audio. */
 532         bool has_hdmi_sink;
 533
 534         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 535          * has_dp_encoder is set. */
 536         bool has_audio;
 537
 538         /*
 539          * Enable dithering, used when the selected pipe bpp doesn't match the
 540          * plane bpp.
 541          */
 542         bool dither;
 543
 544         /* Controls for the clock computation, to override various stages. */
 545         bool clock_set;
 546
 547         /* SDVO TV has a bunch of special case. To make multifunction encoders
 548          * work correctly, we need to track this at runtime.*/
 549         bool sdvo_tv_clock;
 550
 551         /*
 552          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 553          * required. This is set in the 2nd loop of calling encoder's
 554          * ->compute_config if the first pick doesn't work out.
 555          */
 556         bool bw_constrained;
 557
 558         /* Settings for the intel dpll used on pretty much everything but
 559          * haswell. */
 560         struct dpll dpll;
 561
 562         /* Selected dpll when shared or NULL. */
 563         struct intel_shared_dpll *shared_dpll;
 564
 565         /*
 566          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
 567          * - enum skl_dpll on SKL
 568          */
 569         uint32_t ddi_pll_sel;
 570
 571         /* Actual register state of the dpll, for shared dpll cross-checking. */
 572         struct intel_dpll_hw_state dpll_hw_state;
 573
 574         /* DSI PLL registers */
 575         struct {
 576                 u32 ctrl, div;
 577         } dsi_pll;
 578
 579         int pipe_bpp;
 580         struct intel_link_m_n dp_m_n;
 581
 582         /* m2_n2 for eDP downclock */
 583         struct intel_link_m_n dp_m2_n2;
 584         bool has_drrs;
 585
 586         /*
 587          * Frequence the dpll for the port should run at. Differs from the
 588          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 589          * already multiplied by pixel_multiplier.
 590          */
 591         int port_clock;
 592
 593         /* Used by SDVO (and if we ever fix it, HDMI). */
 594         unsigned pixel_multiplier;
 595
 596         uint8_t lane_count;
 597
 598         /*
 599          * Used by platforms having DP/HDMI PHY with programmable lane
 600          * latency optimization.
 601          */
 602         uint8_t lane_lat_optim_mask;
 603
 604         /* Panel fitter controls for gen2-gen4 + VLV */
 605         struct {
 606                 u32 control;
 607                 u32 pgm_ratios;
 608                 u32 lvds_border_bits;
 609         } gmch_pfit;
 610
 611         /* Panel fitter placement and size for Ironlake+ */
 612         struct {
 613                 u32 pos;
 614                 u32 size;
 615                 bool enabled;
 616                 bool force_thru;
 617         } pch_pfit;
 618
 619         /* FDI configuration, only valid if has_pch_encoder is set. */
 620         int fdi_lanes;
 621         struct intel_link_m_n fdi_m_n;
 622
 623         bool ips_enabled;
 624
 625         bool enable_fbc;
 626
 627         bool double_wide;
 628
 629         bool dp_encoder_is_mst;
 630         int pbn;
 631
 632         struct intel_crtc_scaler_state scaler_state;
 633
 634         /* w/a for waiting 2 vblanks during crtc enable */
 635         enum i915_pipe hsw_workaround_pipe;
 636
 637         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 638         bool disable_lp_wm;
 639
 640         struct intel_crtc_wm_state wm;
 641
 642         /* Gamma mode programmed on the pipe */
 643         uint32_t gamma_mode;
 644 };
 645
 646 struct vlv_wm_state {
 647         struct vlv_pipe_wm wm[3];
 648         struct vlv_sr_wm sr[3];
 649         uint8_t num_active_planes;
 650         uint8_t num_levels;
 651         uint8_t level;
 652         bool cxsr;
 653 };
 654
 655 struct intel_crtc {
 656         struct drm_crtc base;
 657         enum i915_pipe pipe;
 658         enum plane plane;
 659         u8 lut_r[256], lut_g[256], lut_b[256];
 660         /*
 661          * Whether the crtc and the connected output pipeline is active. Implies
 662          * that crtc->enabled is set, i.e. the current mode configuration has
 663          * some outputs connected to this crtc.
 664          */
 665         bool active;
 666         unsigned long enabled_power_domains;
 667         bool lowfreq_avail;
 668         struct intel_overlay *overlay;
 669         struct intel_flip_work *flip_work;
 670
 671         atomic_t unpin_work_count;
 672
 673         /* Display surface base address adjustement for pageflips. Note that on
 674          * gen4+ this only adjusts up to a tile, offsets within a tile are
 675          * handled in the hw itself (with the TILEOFF register). */
 676         u32 dspaddr_offset;
 677         int adjusted_x;
 678         int adjusted_y;
 679
 680         uint32_t cursor_addr;
 681         uint32_t cursor_cntl;
 682         uint32_t cursor_size;
 683         uint32_t cursor_base;
 684
 685         struct intel_crtc_state *config;
 686
 687         /* reset counter value when the last flip was submitted */
 688         unsigned int reset_counter;
 689
 690         /* Access to these should be protected by dev_priv->irq_lock. */
 691         bool cpu_fifo_underrun_disabled;
 692         bool pch_fifo_underrun_disabled;
 693
 694         /* per-pipe watermark state */
 695         struct {
 696                 /* watermarks currently being used  */
 697                 union {
 698                         struct intel_pipe_wm ilk;
 699                         struct skl_pipe_wm skl;
 700                 } active;
 701
 702                 /* allow CxSR on this pipe */
 703                 bool cxsr_allowed;
 704         } wm;
 705
 706         int scanline_offset;
 707
 708         struct {
 709                 unsigned start_vbl_count;
 710                 ktime_t start_vbl_time;
 711                 int min_vbl, max_vbl;
 712                 int scanline_start;
 713         } debug;
 714
 715         /* scalers available on this crtc */
 716         int num_scalers;
 717
 718         struct vlv_wm_state wm_state;
 719 };
 720
 721 struct intel_plane_wm_parameters {
 722         uint32_t horiz_pixels;
 723         uint32_t vert_pixels;
 724         /*
 725          *   For packed pixel formats:
 726          *     bytes_per_pixel - holds bytes per pixel
 727          *   For planar pixel formats:
 728          *     bytes_per_pixel - holds bytes per pixel for uv-plane
 729          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
 730          */
 731         uint8_t bytes_per_pixel;
 732         uint8_t y_bytes_per_pixel;
 733         bool enabled;
 734         bool scaled;
 735         u64 tiling;
 736         unsigned int rotation;
 737         uint16_t fifo_size;
 738 };
 739
 740 struct intel_plane {
 741         struct drm_plane base;
 742         int plane;
 743         enum i915_pipe pipe;
 744         bool can_scale;
 745         int max_downscale;
 746         uint32_t frontbuffer_bit;
 747
 748         /* Since we need to change the watermarks before/after
 749          * enabling/disabling the planes, we need to store the parameters here
 750          * as the other pieces of the struct may not reflect the values we want
 751          * for the watermark calculations. Currently only Haswell uses this.
 752          */
 753         struct intel_plane_wm_parameters wm;
 754
 755         /*
 756          * NOTE: Do not place new plane state fields here (e.g., when adding
 757          * new plane properties).  New runtime state should now be placed in
 758          * the intel_plane_state structure and accessed via plane_state.
 759          */
 760
 761         void (*update_plane)(struct drm_plane *plane,
 762                              const struct intel_crtc_state *crtc_state,
 763                              const struct intel_plane_state *plane_state);
 764         void (*disable_plane)(struct drm_plane *plane,
 765                               struct drm_crtc *crtc);
 766         int (*check_plane)(struct drm_plane *plane,
 767                            struct intel_crtc_state *crtc_state,
 768                            struct intel_plane_state *state);
 769 };
 770
 771 struct intel_watermark_params {
 772         unsigned long fifo_size;
 773         unsigned long max_wm;
 774         unsigned long default_wm;
 775         unsigned long guard_size;
 776         unsigned long cacheline_size;
 777 };
 778
 779 struct cxsr_latency {
 780         int is_desktop;
 781         int is_ddr3;
 782         unsigned long fsb_freq;
 783         unsigned long mem_freq;
 784         unsigned long display_sr;
 785         unsigned long display_hpll_disable;
 786         unsigned long cursor_sr;
 787         unsigned long cursor_hpll_disable;
 788 };
 789
 790 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 791 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 792 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 793 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 794 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 795 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 796 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 797 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 798 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 799
 800 struct intel_hdmi {
 801         i915_reg_t hdmi_reg;
 802         int ddc_bus;
 803         struct {
 804                 enum drm_dp_dual_mode_type type;
 805                 int max_tmds_clock;
 806         } dp_dual_mode;
 807         bool limited_color_range;
 808         bool color_range_auto;
 809         bool has_hdmi_sink;
 810         bool has_audio;
 811         enum hdmi_force_audio force_audio;
 812         bool rgb_quant_range_selectable;
 813         enum hdmi_picture_aspect aspect_ratio;
 814         struct intel_connector *attached_connector;
 815         void (*write_infoframe)(struct drm_encoder *encoder,
 816                                 enum hdmi_infoframe_type type,
 817                                 const void *frame, ssize_t len);
 818         void (*set_infoframes)(struct drm_encoder *encoder,
 819                                bool enable,
 820                                const struct drm_display_mode *adjusted_mode);
 821         bool (*infoframe_enabled)(struct drm_encoder *encoder,
 822                                   const struct intel_crtc_state *pipe_config);
 823 };
 824
 825 struct intel_dp_mst_encoder;
 826 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 827
 828 /*
 829  * enum link_m_n_set:
 830  *      When platform provides two set of M_N registers for dp, we can
 831  *      program them and switch between them incase of DRRS.
 832  *      But When only one such register is provided, we have to program the
 833  *      required divider value on that registers itself based on the DRRS state.
 834  *
 835  * M1_N1        : Program dp_m_n on M1_N1 registers
 836  *                        dp_m2_n2 on M2_N2 registers (If supported)
 837  *
 838  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
 839  *                        M2_N2 registers are not supported
 840  */
 841
 842 enum link_m_n_set {
 843         /* Sets the m1_n1 and m2_n2 */
 844         M1_N1 = 0,
 845         M2_N2
 846 };
 847
 848 struct intel_dp {
 849         i915_reg_t output_reg;
 850         i915_reg_t aux_ch_ctl_reg;
 851         i915_reg_t aux_ch_data_reg[5];
 852         uint32_t DP;
 853         int link_rate;
 854         uint8_t lane_count;
 855         uint8_t sink_count;
 856         bool has_audio;
 857         bool detect_done;
 858         enum hdmi_force_audio force_audio;
 859         bool limited_color_range;
 860         bool color_range_auto;
 861         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 862         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 863         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 864         uint8_t edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE];
 865         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
 866         uint8_t num_sink_rates;
 867         int sink_rates[DP_MAX_SUPPORTED_RATES];
 868         struct drm_dp_aux aux;
 869         uint8_t train_set[4];
 870         int panel_power_up_delay;
 871         int panel_power_down_delay;
 872         int panel_power_cycle_delay;
 873         int backlight_on_delay;
 874         int backlight_off_delay;
 875         struct delayed_work panel_vdd_work;
 876         bool want_panel_vdd;
 877         unsigned long last_power_on;
 878         unsigned long last_backlight_off;
 879         ktime_t panel_power_off_time;
 880
 881         struct notifier_block edp_notifier;
 882
 883         /*
 884          * Pipe whose power sequencer is currently locked into
 885          * this port. Only relevant on VLV/CHV.
 886          */
 887         enum i915_pipe pps_pipe;
 888         /*
 889          * Set if the sequencer may be reset due to a power transition,
 890          * requiring a reinitialization. Only relevant on BXT.
 891          */
 892         bool pps_reset;
 893         struct edp_power_seq pps_delays;
 894
 895         bool can_mst; /* this port supports mst */
 896         bool is_mst;
 897         int active_mst_links;
 898         /* connector directly attached - won't be use for modeset in mst world */
 899         struct intel_connector *attached_connector;
 900
 901         /* mst connector list */
 902         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
 903         struct drm_dp_mst_topology_mgr mst_mgr;
 904
 905         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 906         /*
 907          * This function returns the value we have to program the AUX_CTL
 908          * register with to kick off an AUX transaction.
 909          */
 910         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 911                                      bool has_aux_irq,
 912                                      int send_bytes,
 913                                      uint32_t aux_clock_divider);
 914
 915         /* This is called before a link training is starterd */
 916         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
 917
 918         /* Displayport compliance testing */
 919         unsigned long compliance_test_type;
 920         unsigned long compliance_test_data;
 921         bool compliance_test_active;
 922 };
 923
 924 struct intel_digital_port {
 925         struct intel_encoder base;
 926         enum port port;
 927         u32 saved_port_bits;
 928         struct intel_dp dp;
 929         struct intel_hdmi hdmi;
 930         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 931         bool release_cl2_override;
 932         uint8_t max_lanes;
 933         /* for communication with audio component; protected by av_mutex */
 934         const struct drm_connector *audio_connector;
 935 };
 936
 937 struct intel_dp_mst_encoder {
 938         struct intel_encoder base;
 939         enum i915_pipe pipe;
 940         struct intel_digital_port *primary;
 941         struct intel_connector *connector;
 942 };
 943
 944 static inline enum dpio_channel
 945 vlv_dport_to_channel(struct intel_digital_port *dport)
 946 {
 947         switch (dport->port) {
 948         case PORT_B:
 949         case PORT_D:
 950                 return DPIO_CH0;
 951         case PORT_C:
 952                 return DPIO_CH1;
 953         default:
 954                 BUG();
 955         }
 956 }
 957
 958 static inline enum dpio_phy
 959 vlv_dport_to_phy(struct intel_digital_port *dport)
 960 {
 961         switch (dport->port) {
 962         case PORT_B:
 963         case PORT_C:
 964                 return DPIO_PHY0;
 965         case PORT_D:
 966                 return DPIO_PHY1;
 967         default:
 968                 BUG();
 969         }
 970 }
 971
 972 static inline enum dpio_channel
 973 vlv_pipe_to_channel(enum i915_pipe pipe)
 974 {
 975         switch (pipe) {
 976         case PIPE_A:
 977         case PIPE_C:
 978                 return DPIO_CH0;
 979         case PIPE_B:
 980                 return DPIO_CH1;
 981         default:
 982                 BUG();
 983         }
 984 }
 985
 986 static inline struct drm_crtc *
 987 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 988 {
 989         struct drm_i915_private *dev_priv = to_i915(dev);
 990         return dev_priv->pipe_to_crtc_mapping[pipe];
 991 }
 992
 993 static inline struct drm_crtc *
 994 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 995 {
 996         struct drm_i915_private *dev_priv = to_i915(dev);
 997         return dev_priv->plane_to_crtc_mapping[plane];
 998 }
 999
1000 struct intel_flip_work {
1001         struct work_struct unpin_work;
1002         struct work_struct mmio_work;
1003
1004         struct drm_crtc *crtc;
1005         struct drm_framebuffer *old_fb;
1006         struct drm_i915_gem_object *pending_flip_obj;
1007         struct drm_pending_vblank_event *event;
1008         atomic_t pending;
1009         u32 flip_count;
1010         u32 gtt_offset;
1011         struct drm_i915_gem_request *flip_queued_req;
1012         u32 flip_queued_vblank;
1013         u32 flip_ready_vblank;
1014         unsigned int rotation;
1015 };
1016
1017 struct intel_load_detect_pipe {
1018         struct drm_atomic_state *restore_state;
1019 };
1020
1021 static inline struct intel_encoder *
1022 intel_attached_encoder(struct drm_connector *connector)
1023 {
1024         return to_intel_connector(connector)->encoder;
1025 }
1026
1027 static inline struct intel_digital_port *
1028 enc_to_dig_port(struct drm_encoder *encoder)
1029 {
1030         return container_of(encoder, struct intel_digital_port, base.base);
1031 }
1032
1033 static inline struct intel_dp_mst_encoder *
1034 enc_to_mst(struct drm_encoder *encoder)
1035 {
1036         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
1037 }
1038
1039 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
1040 {
1041         return &enc_to_dig_port(encoder)->dp;
1042 }
1043
1044 static inline struct intel_digital_port *
1045 dp_to_dig_port(struct intel_dp *intel_dp)
1046 {
1047         return container_of(intel_dp, struct intel_digital_port, dp);
1048 }
1049
1050 static inline struct intel_digital_port *
1051 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
1052 {
1053         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1054 }
1055
1056 /*
1057  * Returns the number of planes for this pipe, ie the number of sprites + 1
1058  * (primary plane). This doesn't count the cursor plane then.
1059  */
1060 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
1061 {
1062         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
1063 }
1064
1065 /* intel_fifo_underrun.c */
1066 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1067                                            enum i915_pipe pipe, bool enable);
1068 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1069                                            enum transcoder pch_transcoder,
1070                                            bool enable);
1071 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1072                                          enum i915_pipe pipe);
1073 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1074                                          enum transcoder pch_transcoder);
1075 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1076 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1077
1078 /* i915_irq.c */
1079 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1080 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1081 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1082 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1083 void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1084 void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
1085 void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
1086 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
1087 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1088 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1089 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1090 {
1091         /*
1092          * We only use drm_irq_uninstall() at unload and VT switch, so
1093          * this is the only thing we need to check.
1094          */
1095         return dev_priv->pm.irqs_enabled;
1096 }
1097
1098 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1099 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1100                                      unsigned int pipe_mask);
1101 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1102                                      unsigned int pipe_mask);
1103
1104 /* intel_crt.c */
1105 void intel_crt_init(struct drm_device *dev);
1106 void intel_crt_reset(struct drm_encoder *encoder);
1107
1108 /* intel_ddi.c */
1109 void intel_ddi_clk_select(struct intel_encoder *encoder,
1110                           const struct intel_crtc_state *pipe_config);
1111 void intel_prepare_ddi_buffer(struct intel_encoder *encoder);
1112 void hsw_fdi_link_train(struct drm_crtc *crtc);
1113 void intel_ddi_init(struct drm_device *dev, enum port port);
1114 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
1115 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum i915_pipe *pipe);
1116 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
1117 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
1118                                        enum transcoder cpu_transcoder);
1119 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
1120 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
1121 bool intel_ddi_pll_select(struct intel_crtc *crtc,
1122                           struct intel_crtc_state *crtc_state);
1123 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
1124 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1125 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1126 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
1127 void intel_ddi_get_config(struct intel_encoder *encoder,
1128                           struct intel_crtc_state *pipe_config);
1129 struct intel_encoder *
1130 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
1131
1132 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
1133 void intel_ddi_clock_get(struct intel_encoder *encoder,
1134                          struct intel_crtc_state *pipe_config);
1135 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
1136 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1137
1138 /* intel_frontbuffer.c */
1139 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
1140                              enum fb_op_origin origin);
1141 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
1142                                     unsigned frontbuffer_bits);
1143 void intel_frontbuffer_flip_complete(struct drm_device *dev,
1144                                      unsigned frontbuffer_bits);
1145 void intel_frontbuffer_flip(struct drm_device *dev,
1146                             unsigned frontbuffer_bits);
1147 unsigned int intel_fb_align_height(struct drm_device *dev,
1148                                    unsigned int height,
1149                                    uint32_t pixel_format,
1150                                    uint64_t fb_format_modifier);
1151 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
1152                         enum fb_op_origin origin);
1153 u32 intel_fb_stride_alignment(const struct drm_i915_private *dev_priv,
1154                               uint64_t fb_modifier, uint32_t pixel_format);
1155
1156 /* intel_audio.c */
1157 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1158 void intel_audio_codec_enable(struct intel_encoder *encoder);
1159 void intel_audio_codec_disable(struct intel_encoder *encoder);
1160 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1161 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1162
1163 /* intel_display.c */
1164 void skl_set_preferred_cdclk_vco(struct drm_i915_private *dev_priv, int vco);
1165 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1166 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1167                       const char *name, u32 reg, int ref_freq);
1168 extern const struct drm_plane_funcs intel_plane_funcs;
1169 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1170 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1171 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1172 void intel_mark_busy(struct drm_i915_private *dev_priv);
1173 void intel_mark_idle(struct drm_i915_private *dev_priv);
1174 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1175 int intel_display_suspend(struct drm_device *dev);
1176 void intel_encoder_destroy(struct drm_encoder *encoder);
1177 int intel_connector_init(struct intel_connector *);
1178 struct intel_connector *intel_connector_alloc(void);
1179 bool intel_connector_get_hw_state(struct intel_connector *connector);
1180 void intel_connector_attach_encoder(struct intel_connector *connector,
1181                                     struct intel_encoder *encoder);
1182 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1183                                              struct drm_crtc *crtc);
1184 enum i915_pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1185 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1186                                 struct drm_file *file_priv);
1187 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1188                                              enum i915_pipe pipe);
1189 static inline bool
1190 intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
1191                     enum intel_output_type type)
1192 {
1193         return crtc_state->output_types & (1 << type);
1194 }
1195 static inline bool
1196 intel_crtc_has_dp_encoder(const struct intel_crtc_state *crtc_state)
1197 {
1198         return crtc_state->output_types &
1199                 ((1 << INTEL_OUTPUT_DP) |
1200                  (1 << INTEL_OUTPUT_DP_MST) |
1201                  (1 << INTEL_OUTPUT_EDP));
1202 }
1203 static inline void
1204 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1205 {
1206         drm_wait_one_vblank(dev, pipe);
1207 }
1208 static inline void
1209 intel_wait_for_vblank_if_active(struct drm_device *dev, int pipe)
1210 {
1211         const struct intel_crtc *crtc =
1212                 to_intel_crtc(intel_get_crtc_for_pipe(dev, pipe));
1213
1214         if (crtc->active)
1215                 intel_wait_for_vblank(dev, pipe);
1216 }
1217
1218 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
1219
1220 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1221 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1222                          struct intel_digital_port *dport,
1223                          unsigned int expected_mask);
1224 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1225                                 struct drm_display_mode *mode,
1226                                 struct intel_load_detect_pipe *old,
1227                                 struct drm_modeset_acquire_ctx *ctx);
1228 void intel_release_load_detect_pipe(struct drm_connector *connector,
1229                                     struct intel_load_detect_pipe *old,
1230                                     struct drm_modeset_acquire_ctx *ctx);
1231 int intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
1232                                unsigned int rotation);
1233 void intel_unpin_fb_obj(struct drm_framebuffer *fb, unsigned int rotation);
1234 struct drm_framebuffer *
1235 __intel_framebuffer_create(struct drm_device *dev,
1236                            struct drm_mode_fb_cmd2 *mode_cmd,
1237                            struct drm_i915_gem_object *obj);
1238 void intel_finish_page_flip_cs(struct drm_i915_private *dev_priv, int pipe);
1239 void intel_finish_page_flip_mmio(struct drm_i915_private *dev_priv, int pipe);
1240 void intel_check_page_flip(struct drm_i915_private *dev_priv, int pipe);
1241 int intel_prepare_plane_fb(struct drm_plane *plane,
1242                            struct drm_plane_state *new_state);
1243 void intel_cleanup_plane_fb(struct drm_plane *plane,
1244                             struct drm_plane_state *old_state);
1245 int intel_plane_atomic_get_property(struct drm_plane *plane,
1246                                     const struct drm_plane_state *state,
1247                                     struct drm_property *property,
1248                                     uint64_t *val);
1249 int intel_plane_atomic_set_property(struct drm_plane *plane,
1250                                     struct drm_plane_state *state,
1251                                     struct drm_property *property,
1252                                     uint64_t val);
1253 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1254                                     struct drm_plane_state *plane_state);
1255
1256 unsigned int intel_tile_height(const struct drm_i915_private *dev_priv,
1257                                uint64_t fb_modifier, unsigned int cpp);
1258
1259 static inline bool
1260 intel_rotation_90_or_270(unsigned int rotation)
1261 {
1262         return rotation & (DRM_ROTATE_90 | DRM_ROTATE_270);
1263 }
1264
1265 void intel_create_rotation_property(struct drm_device *dev,
1266                                         struct intel_plane *plane);
1267
1268 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1269                                     enum i915_pipe pipe);
1270
1271 int vlv_force_pll_on(struct drm_device *dev, enum i915_pipe pipe,
1272                      const struct dpll *dpll);
1273 void vlv_force_pll_off(struct drm_device *dev, enum i915_pipe pipe);
1274 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1275
1276 /* modesetting asserts */
1277 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1278                            enum i915_pipe pipe);
1279 void assert_pll(struct drm_i915_private *dev_priv,
1280                 enum i915_pipe pipe, bool state);
1281 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1282 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1283 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1284 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1285 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1286 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1287                        enum i915_pipe pipe, bool state);
1288 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1289 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1290 void assert_pipe(struct drm_i915_private *dev_priv, enum i915_pipe pipe, bool state);
1291 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1292 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1293 u32 intel_compute_tile_offset(int *x, int *y,
1294                               const struct drm_framebuffer *fb, int plane,
1295                               unsigned int pitch,
1296                               unsigned int rotation);
1297 void intel_prepare_reset(struct drm_i915_private *dev_priv);
1298 void intel_finish_reset(struct drm_i915_private *dev_priv);
1299 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1300 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1301 void bxt_init_cdclk(struct drm_i915_private *dev_priv);
1302 void bxt_uninit_cdclk(struct drm_i915_private *dev_priv);
1303 void bxt_ddi_phy_init(struct drm_i915_private *dev_priv, enum dpio_phy phy);
1304 void bxt_ddi_phy_uninit(struct drm_i915_private *dev_priv, enum dpio_phy phy);
1305 bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
1306                             enum dpio_phy phy);
1307 bool bxt_ddi_phy_verify_state(struct drm_i915_private *dev_priv,
1308                               enum dpio_phy phy);
1309 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1310 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1311 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1312 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1313 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1314 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1315 unsigned int skl_cdclk_get_vco(unsigned int freq);
1316 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1317 void skl_disable_dc6(struct drm_i915_private *dev_priv);
1318 void intel_dp_get_m_n(struct intel_crtc *crtc,
1319                       struct intel_crtc_state *pipe_config);
1320 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1321 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1322 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1323                         struct dpll *best_clock);
1324 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
1325
1326 bool intel_crtc_active(struct drm_crtc *crtc);
1327 void hsw_enable_ips(struct intel_crtc *crtc);
1328 void hsw_disable_ips(struct intel_crtc *crtc);
1329 enum intel_display_power_domain
1330 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1331 enum intel_display_power_domain
1332 intel_display_port_aux_power_domain(struct intel_encoder *intel_encoder);
1333 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1334                                  struct intel_crtc_state *pipe_config);
1335
1336 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1337 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1338
1339 u32 intel_plane_obj_offset(struct intel_plane *intel_plane,
1340                            struct drm_i915_gem_object *obj,
1341                            unsigned int plane);
1342
1343 u32 skl_plane_ctl_format(uint32_t pixel_format);
1344 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1345 u32 skl_plane_ctl_rotation(unsigned int rotation);
1346
1347 /* intel_csr.c */
1348 void intel_csr_ucode_init(struct drm_i915_private *);
1349 void intel_csr_load_program(struct drm_i915_private *);
1350 void intel_csr_ucode_fini(struct drm_i915_private *);
1351 void intel_csr_ucode_suspend(struct drm_i915_private *);
1352 void intel_csr_ucode_resume(struct drm_i915_private *);
1353
1354 /* intel_dp.c */
1355 bool intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
1356 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1357                              struct intel_connector *intel_connector);
1358 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1359                               const struct intel_crtc_state *pipe_config);
1360 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1361 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1362 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1363 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1364 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1365 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1366 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1367 bool intel_dp_compute_config(struct intel_encoder *encoder,
1368                              struct intel_crtc_state *pipe_config);
1369 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1370 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1371                                   bool long_hpd);
1372 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1373 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1374 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1375 void intel_edp_panel_on(struct intel_dp *intel_dp);
1376 void intel_edp_panel_off(struct intel_dp *intel_dp);
1377 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1378 void intel_dp_mst_suspend(struct drm_device *dev);
1379 void intel_dp_mst_resume(struct drm_device *dev);
1380 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1381 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1382 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1383 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
1384 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1385 void intel_plane_destroy(struct drm_plane *plane);
1386 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1387 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1388 void intel_edp_drrs_invalidate(struct drm_device *dev,
1389                 unsigned frontbuffer_bits);
1390 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1391
1392 void
1393 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1394                                        uint8_t dp_train_pat);
1395 void
1396 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1397 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1398 uint8_t
1399 intel_dp_voltage_max(struct intel_dp *intel_dp);
1400 uint8_t
1401 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1402 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1403                            uint8_t *link_bw, uint8_t *rate_select);
1404 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1405 bool
1406 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1407
1408 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
1409 {
1410         return ~((1 << lane_count) - 1) & 0xf;
1411 }
1412
1413 /* intel_dp_aux_backlight.c */
1414 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
1415
1416 /* intel_dp_mst.c */
1417 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1418 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1419 /* intel_dsi.c */
1420 void intel_dsi_init(struct drm_device *dev);
1421
1422 /* intel_dsi_dcs_backlight.c */
1423 int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
1424
1425 /* intel_dvo.c */
1426 void intel_dvo_init(struct drm_device *dev);
1427 /* intel_hotplug.c */
1428 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
1429
1430
1431 /* legacy fbdev emulation in intel_fbdev.c */
1432 #ifdef CONFIG_DRM_FBDEV_EMULATION
1433 extern int intel_fbdev_init(struct drm_device *dev);
1434 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1435 extern void intel_fbdev_fini(struct drm_device *dev);
1436 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1437 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1438 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1439 #else
1440 static inline int intel_fbdev_init(struct drm_device *dev)
1441 {
1442         return 0;
1443 }
1444
1445 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1446 {
1447 }
1448
1449 static inline void intel_fbdev_fini(struct drm_device *dev)
1450 {
1451 }
1452
1453 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1454 {
1455 }
1456
1457 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1458 {
1459 }
1460 #endif
1461
1462 /* intel_fbc.c */
1463 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1464                            struct drm_atomic_state *state);
1465 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1466 void intel_fbc_pre_update(struct intel_crtc *crtc,
1467                           struct intel_crtc_state *crtc_state,
1468                           struct intel_plane_state *plane_state);
1469 void intel_fbc_post_update(struct intel_crtc *crtc);
1470 void intel_fbc_init(struct drm_i915_private *dev_priv);
1471 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1472 void intel_fbc_enable(struct intel_crtc *crtc,
1473                       struct intel_crtc_state *crtc_state,
1474                       struct intel_plane_state *plane_state);
1475 void intel_fbc_disable(struct intel_crtc *crtc);
1476 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1477 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1478                           unsigned int frontbuffer_bits,
1479                           enum fb_op_origin origin);
1480 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1481                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1482 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1483
1484 /* intel_hdmi.c */
1485 void intel_hdmi_init(struct drm_device *dev, i915_reg_t hdmi_reg, enum port port);
1486 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1487                                struct intel_connector *intel_connector);
1488 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1489 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1490                                struct intel_crtc_state *pipe_config);
1491 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
1492
1493
1494 /* intel_lvds.c */
1495 void intel_lvds_init(struct drm_device *dev);
1496 struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev);
1497 bool intel_is_dual_link_lvds(struct drm_device *dev);
1498
1499
1500 /* intel_modes.c */
1501 int intel_connector_update_modes(struct drm_connector *connector,
1502                                  struct edid *edid);
1503 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1504 void intel_attach_force_audio_property(struct drm_connector *connector);
1505 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1506 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1507
1508
1509 /* intel_overlay.c */
1510 void intel_setup_overlay(struct drm_i915_private *dev_priv);
1511 void intel_cleanup_overlay(struct drm_i915_private *dev_priv);
1512 int intel_overlay_switch_off(struct intel_overlay *overlay);
1513 int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
1514                                   struct drm_file *file_priv);
1515 int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
1516                               struct drm_file *file_priv);
1517 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1518
1519
1520 /* intel_panel.c */
1521 int intel_panel_init(struct intel_panel *panel,
1522                      struct drm_display_mode *fixed_mode,
1523                      struct drm_display_mode *downclock_mode);
1524 void intel_panel_fini(struct intel_panel *panel);
1525 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1526                             struct drm_display_mode *adjusted_mode);
1527 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1528                              struct intel_crtc_state *pipe_config,
1529                              int fitting_mode);
1530 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1531                               struct intel_crtc_state *pipe_config,
1532                               int fitting_mode);
1533 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1534                                     u32 level, u32 max);
1535 int intel_panel_setup_backlight(struct drm_connector *connector,
1536                                 enum i915_pipe pipe);
1537 void intel_panel_enable_backlight(struct intel_connector *connector);
1538 void intel_panel_disable_backlight(struct intel_connector *connector);
1539 void intel_panel_destroy_backlight(struct drm_connector *connector);
1540 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1541 extern struct drm_display_mode *intel_find_panel_downclock(
1542                                 struct drm_device *dev,
1543                                 struct drm_display_mode *fixed_mode,
1544                                 struct drm_connector *connector);
1545
1546 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
1547 int intel_backlight_device_register(struct intel_connector *connector);
1548 void intel_backlight_device_unregister(struct intel_connector *connector);
1549 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1550 static int intel_backlight_device_register(struct intel_connector *connector)
1551 {
1552         return 0;
1553 }
1554 static inline void intel_backlight_device_unregister(struct intel_connector *connector)
1555 {
1556 }
1557 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1558
1559
1560 /* intel_psr.c */
1561 void intel_psr_enable(struct intel_dp *intel_dp);
1562 void intel_psr_disable(struct intel_dp *intel_dp);
1563 void intel_psr_invalidate(struct drm_device *dev,
1564                           unsigned frontbuffer_bits);
1565 void intel_psr_flush(struct drm_device *dev,
1566                      unsigned frontbuffer_bits,
1567                      enum fb_op_origin origin);
1568 void intel_psr_init(struct drm_device *dev);
1569 void intel_psr_single_frame_update(struct drm_device *dev,
1570                                    unsigned frontbuffer_bits);
1571
1572 /* intel_runtime_pm.c */
1573 int intel_power_domains_init(struct drm_i915_private *);
1574 void intel_power_domains_fini(struct drm_i915_private *);
1575 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1576 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1577 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
1578 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
1579 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1580 const char *
1581 intel_display_power_domain_str(enum intel_display_power_domain domain);
1582
1583 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1584                                     enum intel_display_power_domain domain);
1585 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1586                                       enum intel_display_power_domain domain);
1587 void intel_display_power_get(struct drm_i915_private *dev_priv,
1588                              enum intel_display_power_domain domain);
1589 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1590                                         enum intel_display_power_domain domain);
1591 void intel_display_power_put(struct drm_i915_private *dev_priv,
1592                              enum intel_display_power_domain domain);
1593
1594 static inline void
1595 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1596 {
1597         WARN_ONCE(dev_priv->pm.suspended,
1598                   "Device suspended during HW access\n");
1599 }
1600
1601 static inline void
1602 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1603 {
1604         assert_rpm_device_not_suspended(dev_priv);
1605         /* FIXME: Needs to be converted back to WARN_ONCE, but currently causes
1606          * too much noise. */
1607         if (!atomic_read(&dev_priv->pm.wakeref_count))
1608                 DRM_DEBUG_DRIVER("RPM wakelock ref not held during HW access");
1609 }
1610
1611 static inline int
1612 assert_rpm_atomic_begin(struct drm_i915_private *dev_priv)
1613 {
1614         int seq = atomic_read(&dev_priv->pm.atomic_seq);
1615
1616         assert_rpm_wakelock_held(dev_priv);
1617
1618         return seq;
1619 }
1620
1621 static inline void
1622 assert_rpm_atomic_end(struct drm_i915_private *dev_priv, int begin_seq)
1623 {
1624         WARN_ONCE(atomic_read(&dev_priv->pm.atomic_seq) != begin_seq,
1625                   "HW access outside of RPM atomic section\n");
1626 }
1627
1628 /**
1629  * disable_rpm_wakeref_asserts - disable the RPM assert checks
1630  * @dev_priv: i915 device instance
1631  *
1632  * This function disable asserts that check if we hold an RPM wakelock
1633  * reference, while keeping the device-not-suspended checks still enabled.
1634  * It's meant to be used only in special circumstances where our rule about
1635  * the wakelock refcount wrt. the device power state doesn't hold. According
1636  * to this rule at any point where we access the HW or want to keep the HW in
1637  * an active state we must hold an RPM wakelock reference acquired via one of
1638  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1639  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1640  * forcewake release timer, and the GPU RPS and hangcheck works. All other
1641  * users should avoid using this function.
1642  *
1643  * Any calls to this function must have a symmetric call to
1644  * enable_rpm_wakeref_asserts().
1645  */
1646 static inline void
1647 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1648 {
1649         atomic_inc(&dev_priv->pm.wakeref_count);
1650 }
1651
1652 /**
1653  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
1654  * @dev_priv: i915 device instance
1655  *
1656  * This function re-enables the RPM assert checks after disabling them with
1657  * disable_rpm_wakeref_asserts. It's meant to be used only in special
1658  * circumstances otherwise its use should be avoided.
1659  *
1660  * Any calls to this function must have a symmetric call to
1661  * disable_rpm_wakeref_asserts().
1662  */
1663 static inline void
1664 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1665 {
1666         atomic_dec(&dev_priv->pm.wakeref_count);
1667 }
1668
1669 /* TODO: convert users of these to rely instead on proper RPM refcounting */
1670 #define DISABLE_RPM_WAKEREF_ASSERTS(dev_priv)   \
1671         disable_rpm_wakeref_asserts(dev_priv)
1672
1673 #define ENABLE_RPM_WAKEREF_ASSERTS(dev_priv)    \
1674         enable_rpm_wakeref_asserts(dev_priv)
1675
1676 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1677 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
1678 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1679 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1680
1681 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1682
1683 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1684                              bool override, unsigned int mask);
1685 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1686                           enum dpio_channel ch, bool override);
1687
1688
1689 /* intel_pm.c */
1690 void intel_init_clock_gating(struct drm_device *dev);
1691 void intel_suspend_hw(struct drm_device *dev);
1692 int ilk_wm_max_level(const struct drm_device *dev);
1693 void intel_update_watermarks(struct drm_crtc *crtc);
1694 void intel_init_pm(struct drm_device *dev);
1695 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
1696 void intel_pm_setup(struct drm_device *dev);
1697 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1698 void intel_gpu_ips_teardown(void);
1699 void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
1700 void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
1701 void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
1702 void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
1703 void intel_suspend_gt_powersave(struct drm_i915_private *dev_priv);
1704 void intel_reset_gt_powersave(struct drm_i915_private *dev_priv);
1705 void gen6_update_ring_freq(struct drm_i915_private *dev_priv);
1706 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1707 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1708 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1709 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1710                     struct intel_rps_client *rps,
1711                     unsigned long submitted);
1712 void intel_queue_rps_boost_for_request(struct drm_i915_gem_request *req);
1713 void vlv_wm_get_hw_state(struct drm_device *dev);
1714 void ilk_wm_get_hw_state(struct drm_device *dev);
1715 void skl_wm_get_hw_state(struct drm_device *dev);
1716 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1717                           struct skl_ddb_allocation *ddb /* out */);
1718 bool intel_can_enable_sagv(struct drm_atomic_state *state);
1719 int intel_enable_sagv(struct drm_i915_private *dev_priv);
1720 int intel_disable_sagv(struct drm_i915_private *dev_priv);
1721 bool skl_ddb_allocation_equals(const struct skl_ddb_allocation *old,
1722                                const struct skl_ddb_allocation *new,
1723                                enum i915_pipe pipe);
1724 bool skl_ddb_allocation_overlaps(struct drm_atomic_state *state,
1725                                  const struct skl_ddb_allocation *old,
1726                                  const struct skl_ddb_allocation *new,
1727                                  enum i915_pipe pipe);
1728 void skl_write_cursor_wm(struct intel_crtc *intel_crtc,
1729                          const struct skl_wm_values *wm);
1730 void skl_write_plane_wm(struct intel_crtc *intel_crtc,
1731                         const struct skl_wm_values *wm,
1732                         int plane);
1733 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1734 bool ilk_disable_lp_wm(struct drm_device *dev);
1735 int sanitize_rc6_option(struct drm_i915_private *dev_priv, int enable_rc6);
1736 static inline int intel_enable_rc6(void)
1737 {
1738         return i915.enable_rc6;
1739 }
1740
1741 /* intel_sdvo.c */
1742 bool intel_sdvo_init(struct drm_device *dev,
1743                      i915_reg_t reg, enum port port);
1744
1745
1746 /* intel_sprite.c */
1747 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
1748                              int usecs);
1749 int intel_plane_init(struct drm_device *dev, enum i915_pipe pipe, int plane);
1750 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1751                               struct drm_file *file_priv);
1752 void intel_pipe_update_start(struct intel_crtc *crtc);
1753 void intel_pipe_update_end(struct intel_crtc *crtc, struct intel_flip_work *work);
1754
1755 /* intel_tv.c */
1756 void intel_tv_init(struct drm_device *dev);
1757
1758 /* intel_atomic.c */
1759 int intel_connector_atomic_get_property(struct drm_connector *connector,
1760                                         const struct drm_connector_state *state,
1761                                         struct drm_property *property,
1762                                         uint64_t *val);
1763 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1764 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1765                                struct drm_crtc_state *state);
1766 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1767 void intel_atomic_state_clear(struct drm_atomic_state *);
1768 struct intel_shared_dpll_config *
1769 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1770
1771 static inline struct intel_crtc_state *
1772 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1773                             struct intel_crtc *crtc)
1774 {
1775         struct drm_crtc_state *crtc_state;
1776         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1777         if (IS_ERR(crtc_state))
1778                 return ERR_CAST(crtc_state);
1779
1780         return to_intel_crtc_state(crtc_state);
1781 }
1782
1783 static inline struct intel_plane_state *
1784 intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
1785                                       struct intel_plane *plane)
1786 {
1787         struct drm_plane_state *plane_state;
1788
1789         plane_state = drm_atomic_get_existing_plane_state(state, &plane->base);
1790
1791         return to_intel_plane_state(plane_state);
1792 }
1793
1794 int intel_atomic_setup_scalers(struct drm_device *dev,
1795         struct intel_crtc *intel_crtc,
1796         struct intel_crtc_state *crtc_state);
1797
1798 /* intel_atomic_plane.c */
1799 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1800 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1801 void intel_plane_destroy_state(struct drm_plane *plane,
1802                                struct drm_plane_state *state);
1803 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1804
1805 /* intel_color.c */
1806 void intel_color_init(struct drm_crtc *crtc);
1807 int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
1808 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
1809 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
1810
1811 #endif /* __INTEL_DRV_H__ */