drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25 #ifndef __INTEL_DRV_H__
  26 #define __INTEL_DRV_H__
  27
  28 #include <linux/async.h>
  29 #include <linux/i2c.h>
  30 #include <linux/hdmi.h>
  31 #include <drm/i915_drm.h>
  32 #include "i915_drv.h"
  33 #include <drm/drm_crtc.h>
  34 #include <drm/drm_crtc_helper.h>
  35 #include <drm/drm_fb_helper.h>
  36 #include <drm/drm_dp_mst_helper.h>
  37 #include <drm/drm_rect.h>
  38 #include <drm/drm_atomic.h>
  39
  40 /**
  41  * _wait_for - magic (register) wait macro
  42  *
  43  * Does the right thing for modeset paths when run under kdgb or similar atomic
  44  * contexts. Note that it's important that we check the condition again after
  45  * having timed out, since the timeout could be due to preemption or similar and
  46  * we've never had a chance to check the condition before the timeout.
  47  */
  48 #define _wait_for(COND, MS, W) ({ \
  49         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
  50         int ret__ = 0;                                                  \
  51         while (!(COND)) {                                               \
  52                 if (time_after(jiffies, timeout__)) {                   \
  53                         if (!(COND))                                    \
  54                                 ret__ = -ETIMEDOUT;                     \
  55                         break;                                          \
  56                 }                                                       \
  57                 if ((W) && drm_can_sleep()) {                           \
  58                         usleep_range((W)*1000, (W)*2000);               \
  59                 } else {                                                \
  60                         cpu_relax();                                    \
  61                 }                                                       \
  62         }                                                               \
  63         ret__;                                                          \
  64 })
  65
  66 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  67 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  68 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
  69                                                DIV_ROUND_UP((US), 1000), 0)
  70
  71 #define KHz(x) (1000 * (x))
  72 #define MHz(x) KHz(1000 * (x))
  73
  74 /*
  75  * Display related stuff
  76  */
  77
  78 /* store information about an Ixxx DVO */
  79 /* The i830->i865 use multiple DVOs with multiple i2cs */
  80 /* the i915, i945 have a single sDVO i2c bus - which is different */
  81 #define MAX_OUTPUTS 6
  82 /* maximum connectors per crtcs in the mode set */
  83
  84 /* Maximum cursor sizes */
  85 #define GEN2_CURSOR_WIDTH 64
  86 #define GEN2_CURSOR_HEIGHT 64
  87 #define MAX_CURSOR_WIDTH 256
  88 #define MAX_CURSOR_HEIGHT 256
  89
  90 #define INTEL_I2C_BUS_DVO 1
  91 #define INTEL_I2C_BUS_SDVO 2
  92
  93 /* these are outputs from the chip - integrated only
  94    external chips are via DVO or SDVO output */
  95 enum intel_output_type {
  96         INTEL_OUTPUT_UNUSED = 0,
  97         INTEL_OUTPUT_ANALOG = 1,
  98         INTEL_OUTPUT_DVO = 2,
  99         INTEL_OUTPUT_SDVO = 3,
 100         INTEL_OUTPUT_LVDS = 4,
 101         INTEL_OUTPUT_TVOUT = 5,
 102         INTEL_OUTPUT_HDMI = 6,
 103         INTEL_OUTPUT_DISPLAYPORT = 7,
 104         INTEL_OUTPUT_EDP = 8,
 105         INTEL_OUTPUT_DSI = 9,
 106         INTEL_OUTPUT_UNKNOWN = 10,
 107         INTEL_OUTPUT_DP_MST = 11,
 108 };
 109
 110 #define INTEL_DVO_CHIP_NONE 0
 111 #define INTEL_DVO_CHIP_LVDS 1
 112 #define INTEL_DVO_CHIP_TMDS 2
 113 #define INTEL_DVO_CHIP_TVOUT 4
 114
 115 #define INTEL_DSI_VIDEO_MODE    0
 116 #define INTEL_DSI_COMMAND_MODE  1
 117
 118 struct intel_framebuffer {
 119         struct drm_framebuffer base;
 120         struct drm_i915_gem_object *obj;
 121 };
 122
 123 struct intel_fbdev {
 124         struct drm_fb_helper helper;
 125         struct intel_framebuffer *fb;
 126         struct list_head fbdev_list;
 127         struct drm_display_mode *our_mode;
 128         int preferred_bpp;
 129 };
 130
 131 struct intel_encoder {
 132         struct drm_encoder base;
 133
 134         enum intel_output_type type;
 135         unsigned int cloneable;
 136         void (*hot_plug)(struct intel_encoder *);
 137         bool (*compute_config)(struct intel_encoder *,
 138                                struct intel_crtc_state *);
 139         void (*pre_pll_enable)(struct intel_encoder *);
 140         void (*pre_enable)(struct intel_encoder *);
 141         void (*enable)(struct intel_encoder *);
 142         void (*mode_set)(struct intel_encoder *intel_encoder);
 143         void (*disable)(struct intel_encoder *);
 144         void (*post_disable)(struct intel_encoder *);
 145         void (*post_pll_disable)(struct intel_encoder *);
 146         /* Read out the current hw state of this connector, returning true if
 147          * the encoder is active. If the encoder is enabled it also set the pipe
 148          * it is connected to in the pipe parameter. */
 149         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 150         /* Reconstructs the equivalent mode flags for the current hardware
 151          * state. This must be called _after_ display->get_pipe_config has
 152          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 153          * be set correctly before calling this function. */
 154         void (*get_config)(struct intel_encoder *,
 155                            struct intel_crtc_state *pipe_config);
 156         /*
 157          * Called during system suspend after all pending requests for the
 158          * encoder are flushed (for example for DP AUX transactions) and
 159          * device interrupts are disabled.
 160          */
 161         void (*suspend)(struct intel_encoder *);
 162         int crtc_mask;
 163         enum hpd_pin hpd_pin;
 164 };
 165
 166 struct intel_panel {
 167         struct drm_display_mode *fixed_mode;
 168         struct drm_display_mode *downclock_mode;
 169         int fitting_mode;
 170
 171         /* backlight */
 172         struct {
 173                 bool present;
 174                 u32 level;
 175                 u32 min;
 176                 u32 max;
 177                 bool enabled;
 178                 bool combination_mode;  /* gen 2/4 only */
 179                 bool active_low_pwm;
 180
 181                 /* PWM chip */
 182                 struct pwm_device *pwm;
 183
 184                 struct backlight_device *device;
 185         } backlight;
 186
 187         void (*backlight_power)(struct intel_connector *, bool enable);
 188 };
 189
 190 struct intel_connector {
 191         struct drm_connector base;
 192         /*
 193          * The fixed encoder this connector is connected to.
 194          */
 195         struct intel_encoder *encoder;
 196
 197         /* Reads out the current hw, returning true if the connector is enabled
 198          * and active (i.e. dpms ON state). */
 199         bool (*get_hw_state)(struct intel_connector *);
 200
 201         /*
 202          * Removes all interfaces through which the connector is accessible
 203          * - like sysfs, debugfs entries -, so that no new operations can be
 204          * started on the connector. Also makes sure all currently pending
 205          * operations finish before returing.
 206          */
 207         void (*unregister)(struct intel_connector *);
 208
 209         /* Panel info for eDP and LVDS */
 210         struct intel_panel panel;
 211
 212         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 213         struct edid *edid;
 214         struct edid *detect_edid;
 215
 216         /* since POLL and HPD connectors may use the same HPD line keep the native
 217            state of connector->polled in case hotplug storm detection changes it */
 218         u8 polled;
 219
 220         void *port; /* store this opaque as its illegal to dereference it */
 221
 222         struct intel_dp *mst_port;
 223 };
 224
 225 typedef struct dpll {
 226         /* given values */
 227         int n;
 228         int m1, m2;
 229         int p1, p2;
 230         /* derived values */
 231         int     dot;
 232         int     vco;
 233         int     m;
 234         int     p;
 235 } intel_clock_t;
 236
 237 struct intel_atomic_state {
 238         struct drm_atomic_state base;
 239
 240         unsigned int cdclk;
 241         bool dpll_set;
 242         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
 243 };
 244
 245 struct intel_plane_state {
 246         struct drm_plane_state base;
 247         struct drm_rect src;
 248         struct drm_rect dst;
 249         struct drm_rect clip;
 250         bool visible;
 251
 252         /*
 253          * scaler_id
 254          *    = -1 : not using a scaler
 255          *    >=  0 : using a scalers
 256          *
 257          * plane requiring a scaler:
 258          *   - During check_plane, its bit is set in
 259          *     crtc_state->scaler_state.scaler_users by calling helper function
 260          *     update_scaler_plane.
 261          *   - scaler_id indicates the scaler it got assigned.
 262          *
 263          * plane doesn't require a scaler:
 264          *   - this can happen when scaling is no more required or plane simply
 265          *     got disabled.
 266          *   - During check_plane, corresponding bit is reset in
 267          *     crtc_state->scaler_state.scaler_users by calling helper function
 268          *     update_scaler_plane.
 269          */
 270         int scaler_id;
 271
 272         struct drm_intel_sprite_colorkey ckey;
 273 };
 274
 275 struct intel_initial_plane_config {
 276         struct intel_framebuffer *fb;
 277         unsigned int tiling;
 278         int size;
 279         u32 base;
 280 };
 281
 282 #define SKL_MIN_SRC_W 8
 283 #define SKL_MAX_SRC_W 4096
 284 #define SKL_MIN_SRC_H 8
 285 #define SKL_MAX_SRC_H 4096
 286 #define SKL_MIN_DST_W 8
 287 #define SKL_MAX_DST_W 4096
 288 #define SKL_MIN_DST_H 8
 289 #define SKL_MAX_DST_H 4096
 290
 291 struct intel_scaler {
 292         int in_use;
 293         uint32_t mode;
 294 };
 295
 296 struct intel_crtc_scaler_state {
 297 #define SKL_NUM_SCALERS 2
 298         struct intel_scaler scalers[SKL_NUM_SCALERS];
 299
 300         /*
 301          * scaler_users: keeps track of users requesting scalers on this crtc.
 302          *
 303          *     If a bit is set, a user is using a scaler.
 304          *     Here user can be a plane or crtc as defined below:
 305          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 306          *       bit 31    - crtc
 307          *
 308          * Instead of creating a new index to cover planes and crtc, using
 309          * existing drm_plane_index for planes which is well less than 31
 310          * planes and bit 31 for crtc. This should be fine to cover all
 311          * our platforms.
 312          *
 313          * intel_atomic_setup_scalers will setup available scalers to users
 314          * requesting scalers. It will gracefully fail if request exceeds
 315          * avilability.
 316          */
 317 #define SKL_CRTC_INDEX 31
 318         unsigned scaler_users;
 319
 320         /* scaler used by crtc for panel fitting purpose */
 321         int scaler_id;
 322 };
 323
 324 /* drm_mode->private_flags */
 325 #define I915_MODE_FLAG_INHERITED 1
 326
 327 struct intel_crtc_state {
 328         struct drm_crtc_state base;
 329
 330         /**
 331          * quirks - bitfield with hw state readout quirks
 332          *
 333          * For various reasons the hw state readout code might not be able to
 334          * completely faithfully read out the current state. These cases are
 335          * tracked with quirk flags so that fastboot and state checker can act
 336          * accordingly.
 337          */
 338 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 339         unsigned long quirks;
 340
 341         /* Pipe source size (ie. panel fitter input size)
 342          * All planes will be positioned inside this space,
 343          * and get clipped at the edges. */
 344         int pipe_src_w, pipe_src_h;
 345
 346         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 347          * between pch encoders and cpu encoders. */
 348         bool has_pch_encoder;
 349
 350         /* Are we sending infoframes on the attached port */
 351         bool has_infoframe;
 352
 353         /* CPU Transcoder for the pipe. Currently this can only differ from the
 354          * pipe on Haswell (where we have a special eDP transcoder). */
 355         enum transcoder cpu_transcoder;
 356
 357         /*
 358          * Use reduced/limited/broadcast rbg range, compressing from the full
 359          * range fed into the crtcs.
 360          */
 361         bool limited_color_range;
 362
 363         /* DP has a bunch of special case unfortunately, so mark the pipe
 364          * accordingly. */
 365         bool has_dp_encoder;
 366
 367         /* Whether we should send NULL infoframes. Required for audio. */
 368         bool has_hdmi_sink;
 369
 370         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 371          * has_dp_encoder is set. */
 372         bool has_audio;
 373
 374         /*
 375          * Enable dithering, used when the selected pipe bpp doesn't match the
 376          * plane bpp.
 377          */
 378         bool dither;
 379
 380         /* Controls for the clock computation, to override various stages. */
 381         bool clock_set;
 382
 383         /* SDVO TV has a bunch of special case. To make multifunction encoders
 384          * work correctly, we need to track this at runtime.*/
 385         bool sdvo_tv_clock;
 386
 387         /*
 388          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 389          * required. This is set in the 2nd loop of calling encoder's
 390          * ->compute_config if the first pick doesn't work out.
 391          */
 392         bool bw_constrained;
 393
 394         /* Settings for the intel dpll used on pretty much everything but
 395          * haswell. */
 396         struct dpll dpll;
 397
 398         /* Selected dpll when shared or DPLL_ID_PRIVATE. */
 399         enum intel_dpll_id shared_dpll;
 400
 401         /*
 402          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
 403          * - enum skl_dpll on SKL
 404          */
 405         uint32_t ddi_pll_sel;
 406
 407         /* Actual register state of the dpll, for shared dpll cross-checking. */
 408         struct intel_dpll_hw_state dpll_hw_state;
 409
 410         int pipe_bpp;
 411         struct intel_link_m_n dp_m_n;
 412
 413         /* m2_n2 for eDP downclock */
 414         struct intel_link_m_n dp_m2_n2;
 415         bool has_drrs;
 416
 417         /*
 418          * Frequence the dpll for the port should run at. Differs from the
 419          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 420          * already multiplied by pixel_multiplier.
 421          */
 422         int port_clock;
 423
 424         /* Used by SDVO (and if we ever fix it, HDMI). */
 425         unsigned pixel_multiplier;
 426
 427         uint8_t lane_count;
 428
 429         /* Panel fitter controls for gen2-gen4 + VLV */
 430         struct {
 431                 u32 control;
 432                 u32 pgm_ratios;
 433                 u32 lvds_border_bits;
 434         } gmch_pfit;
 435
 436         /* Panel fitter placement and size for Ironlake+ */
 437         struct {
 438                 u32 pos;
 439                 u32 size;
 440                 bool enabled;
 441                 bool force_thru;
 442         } pch_pfit;
 443
 444         /* FDI configuration, only valid if has_pch_encoder is set. */
 445         int fdi_lanes;
 446         struct intel_link_m_n fdi_m_n;
 447
 448         bool ips_enabled;
 449
 450         bool double_wide;
 451
 452         bool dp_encoder_is_mst;
 453         int pbn;
 454
 455         struct intel_crtc_scaler_state scaler_state;
 456
 457         /* w/a for waiting 2 vblanks during crtc enable */
 458         enum pipe hsw_workaround_pipe;
 459 };
 460
 461 struct vlv_wm_state {
 462         struct vlv_pipe_wm wm[3];
 463         struct vlv_sr_wm sr[3];
 464         uint8_t num_active_planes;
 465         uint8_t num_levels;
 466         uint8_t level;
 467         bool cxsr;
 468 };
 469
 470 struct intel_pipe_wm {
 471         struct intel_wm_level wm[5];
 472         uint32_t linetime;
 473         bool fbc_wm_enabled;
 474         bool pipe_enabled;
 475         bool sprites_enabled;
 476         bool sprites_scaled;
 477 };
 478
 479 struct intel_mmio_flip {
 480         struct work_struct work;
 481         struct drm_i915_private *i915;
 482         struct drm_i915_gem_request *req;
 483         struct intel_crtc *crtc;
 484 };
 485
 486 struct skl_pipe_wm {
 487         struct skl_wm_level wm[8];
 488         struct skl_wm_level trans_wm;
 489         uint32_t linetime;
 490 };
 491
 492 /*
 493  * Tracking of operations that need to be performed at the beginning/end of an
 494  * atomic commit, outside the atomic section where interrupts are disabled.
 495  * These are generally operations that grab mutexes or might otherwise sleep
 496  * and thus can't be run with interrupts disabled.
 497  */
 498 struct intel_crtc_atomic_commit {
 499         /* Sleepable operations to perform before commit */
 500         bool wait_for_flips;
 501         bool disable_fbc;
 502         bool disable_ips;
 503         bool disable_cxsr;
 504         bool pre_disable_primary;
 505         bool update_wm_pre, update_wm_post;
 506         unsigned disabled_planes;
 507
 508         /* Sleepable operations to perform after commit */
 509         unsigned fb_bits;
 510         bool wait_vblank;
 511         bool update_fbc;
 512         bool post_enable_primary;
 513         unsigned update_sprite_watermarks;
 514 };
 515
 516 struct intel_crtc {
 517         struct drm_crtc base;
 518         enum pipe pipe;
 519         enum plane plane;
 520         u8 lut_r[256], lut_g[256], lut_b[256];
 521         /*
 522          * Whether the crtc and the connected output pipeline is active. Implies
 523          * that crtc->enabled is set, i.e. the current mode configuration has
 524          * some outputs connected to this crtc.
 525          */
 526         bool active;
 527         unsigned long enabled_power_domains;
 528         bool lowfreq_avail;
 529         struct intel_overlay *overlay;
 530         struct intel_unpin_work *unpin_work;
 531
 532         atomic_t unpin_work_count;
 533
 534         /* Display surface base address adjustement for pageflips. Note that on
 535          * gen4+ this only adjusts up to a tile, offsets within a tile are
 536          * handled in the hw itself (with the TILEOFF register). */
 537         unsigned long dspaddr_offset;
 538
 539         struct drm_i915_gem_object *cursor_bo;
 540         uint32_t cursor_addr;
 541         uint32_t cursor_cntl;
 542         uint32_t cursor_size;
 543         uint32_t cursor_base;
 544
 545         struct intel_crtc_state *config;
 546
 547         /* reset counter value when the last flip was submitted */
 548         unsigned int reset_counter;
 549
 550         /* Access to these should be protected by dev_priv->irq_lock. */
 551         bool cpu_fifo_underrun_disabled;
 552         bool pch_fifo_underrun_disabled;
 553
 554         /* per-pipe watermark state */
 555         struct {
 556                 /* watermarks currently being used  */
 557                 struct intel_pipe_wm active;
 558                 /* SKL wm values currently in use */
 559                 struct skl_pipe_wm skl_active;
 560                 /* allow CxSR on this pipe */
 561                 bool cxsr_allowed;
 562         } wm;
 563
 564         int scanline_offset;
 565
 566         unsigned start_vbl_count;
 567         struct intel_crtc_atomic_commit atomic;
 568
 569         /* scalers available on this crtc */
 570         int num_scalers;
 571
 572         struct vlv_wm_state wm_state;
 573 };
 574
 575 struct intel_plane_wm_parameters {
 576         uint32_t horiz_pixels;
 577         uint32_t vert_pixels;
 578         /*
 579          *   For packed pixel formats:
 580          *     bytes_per_pixel - holds bytes per pixel
 581          *   For planar pixel formats:
 582          *     bytes_per_pixel - holds bytes per pixel for uv-plane
 583          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
 584          */
 585         uint8_t bytes_per_pixel;
 586         uint8_t y_bytes_per_pixel;
 587         bool enabled;
 588         bool scaled;
 589         u64 tiling;
 590         unsigned int rotation;
 591         uint16_t fifo_size;
 592 };
 593
 594 struct intel_plane {
 595         struct drm_plane base;
 596         int plane;
 597         enum pipe pipe;
 598         bool can_scale;
 599         int max_downscale;
 600         uint32_t frontbuffer_bit;
 601
 602         /* Since we need to change the watermarks before/after
 603          * enabling/disabling the planes, we need to store the parameters here
 604          * as the other pieces of the struct may not reflect the values we want
 605          * for the watermark calculations. Currently only Haswell uses this.
 606          */
 607         struct intel_plane_wm_parameters wm;
 608
 609         /*
 610          * NOTE: Do not place new plane state fields here (e.g., when adding
 611          * new plane properties).  New runtime state should now be placed in
 612          * the intel_plane_state structure and accessed via drm_plane->state.
 613          */
 614
 615         void (*update_plane)(struct drm_plane *plane,
 616                              struct drm_crtc *crtc,
 617                              struct drm_framebuffer *fb,
 618                              int crtc_x, int crtc_y,
 619                              unsigned int crtc_w, unsigned int crtc_h,
 620                              uint32_t x, uint32_t y,
 621                              uint32_t src_w, uint32_t src_h);
 622         void (*disable_plane)(struct drm_plane *plane,
 623                               struct drm_crtc *crtc);
 624         int (*check_plane)(struct drm_plane *plane,
 625                            struct intel_crtc_state *crtc_state,
 626                            struct intel_plane_state *state);
 627         void (*commit_plane)(struct drm_plane *plane,
 628                              struct intel_plane_state *state);
 629 };
 630
 631 struct intel_watermark_params {
 632         unsigned long fifo_size;
 633         unsigned long max_wm;
 634         unsigned long default_wm;
 635         unsigned long guard_size;
 636         unsigned long cacheline_size;
 637 };
 638
 639 struct cxsr_latency {
 640         int is_desktop;
 641         int is_ddr3;
 642         unsigned long fsb_freq;
 643         unsigned long mem_freq;
 644         unsigned long display_sr;
 645         unsigned long display_hpll_disable;
 646         unsigned long cursor_sr;
 647         unsigned long cursor_hpll_disable;
 648 };
 649
 650 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 651 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 652 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 653 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 654 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 655 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 656 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 657 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 658 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 659
 660 struct intel_hdmi {
 661         u32 hdmi_reg;
 662         int ddc_bus;
 663         bool limited_color_range;
 664         bool color_range_auto;
 665         bool has_hdmi_sink;
 666         bool has_audio;
 667         enum hdmi_force_audio force_audio;
 668         bool rgb_quant_range_selectable;
 669         enum hdmi_picture_aspect aspect_ratio;
 670         void (*write_infoframe)(struct drm_encoder *encoder,
 671                                 enum hdmi_infoframe_type type,
 672                                 const void *frame, ssize_t len);
 673         void (*set_infoframes)(struct drm_encoder *encoder,
 674                                bool enable,
 675                                struct drm_display_mode *adjusted_mode);
 676         bool (*infoframe_enabled)(struct drm_encoder *encoder);
 677 };
 678
 679 struct intel_dp_mst_encoder;
 680 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 681
 682 /*
 683  * enum link_m_n_set:
 684  *      When platform provides two set of M_N registers for dp, we can
 685  *      program them and switch between them incase of DRRS.
 686  *      But When only one such register is provided, we have to program the
 687  *      required divider value on that registers itself based on the DRRS state.
 688  *
 689  * M1_N1        : Program dp_m_n on M1_N1 registers
 690  *                        dp_m2_n2 on M2_N2 registers (If supported)
 691  *
 692  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
 693  *                        M2_N2 registers are not supported
 694  */
 695
 696 enum link_m_n_set {
 697         /* Sets the m1_n1 and m2_n2 */
 698         M1_N1 = 0,
 699         M2_N2
 700 };
 701
 702 struct sink_crc {
 703         bool started;
 704         u8 last_crc[6];
 705         int last_count;
 706 };
 707
 708 struct intel_dp {
 709         uint32_t output_reg;
 710         uint32_t aux_ch_ctl_reg;
 711         uint32_t DP;
 712         int link_rate;
 713         uint8_t lane_count;
 714         bool has_audio;
 715         enum hdmi_force_audio force_audio;
 716         bool limited_color_range;
 717         bool color_range_auto;
 718         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 719         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 720         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 721         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
 722         uint8_t num_sink_rates;
 723         int sink_rates[DP_MAX_SUPPORTED_RATES];
 724         struct sink_crc sink_crc;
 725         struct drm_dp_aux aux;
 726         uint8_t train_set[4];
 727         int panel_power_up_delay;
 728         int panel_power_down_delay;
 729         int panel_power_cycle_delay;
 730         int backlight_on_delay;
 731         int backlight_off_delay;
 732         struct delayed_work panel_vdd_work;
 733         bool want_panel_vdd;
 734         unsigned long last_power_cycle;
 735         unsigned long last_power_on;
 736         unsigned long last_backlight_off;
 737
 738         struct notifier_block edp_notifier;
 739
 740         /*
 741          * Pipe whose power sequencer is currently locked into
 742          * this port. Only relevant on VLV/CHV.
 743          */
 744         enum pipe pps_pipe;
 745         struct edp_power_seq pps_delays;
 746
 747         bool use_tps3;
 748         bool can_mst; /* this port supports mst */
 749         bool is_mst;
 750         int active_mst_links;
 751         /* connector directly attached - won't be use for modeset in mst world */
 752         struct intel_connector *attached_connector;
 753
 754         /* mst connector list */
 755         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
 756         struct drm_dp_mst_topology_mgr mst_mgr;
 757
 758         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 759         /*
 760          * This function returns the value we have to program the AUX_CTL
 761          * register with to kick off an AUX transaction.
 762          */
 763         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 764                                      bool has_aux_irq,
 765                                      int send_bytes,
 766                                      uint32_t aux_clock_divider);
 767         bool train_set_valid;
 768
 769         /* Displayport compliance testing */
 770         unsigned long compliance_test_type;
 771         unsigned long compliance_test_data;
 772         bool compliance_test_active;
 773 };
 774
 775 struct intel_digital_port {
 776         struct intel_encoder base;
 777         enum port port;
 778         u32 saved_port_bits;
 779         struct intel_dp dp;
 780         struct intel_hdmi hdmi;
 781         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
 782         bool release_cl2_override;
 783 };
 784
 785 struct intel_dp_mst_encoder {
 786         struct intel_encoder base;
 787         enum pipe pipe;
 788         struct intel_digital_port *primary;
 789         void *port; /* store this opaque as its illegal to dereference it */
 790 };
 791
 792 static inline enum dpio_channel
 793 vlv_dport_to_channel(struct intel_digital_port *dport)
 794 {
 795         switch (dport->port) {
 796         case PORT_B:
 797         case PORT_D:
 798                 return DPIO_CH0;
 799         case PORT_C:
 800                 return DPIO_CH1;
 801         default:
 802                 BUG();
 803         }
 804 }
 805
 806 static inline enum dpio_phy
 807 vlv_dport_to_phy(struct intel_digital_port *dport)
 808 {
 809         switch (dport->port) {
 810         case PORT_B:
 811         case PORT_C:
 812                 return DPIO_PHY0;
 813         case PORT_D:
 814                 return DPIO_PHY1;
 815         default:
 816                 BUG();
 817         }
 818 }
 819
 820 static inline enum dpio_channel
 821 vlv_pipe_to_channel(enum pipe pipe)
 822 {
 823         switch (pipe) {
 824         case PIPE_A:
 825         case PIPE_C:
 826                 return DPIO_CH0;
 827         case PIPE_B:
 828                 return DPIO_CH1;
 829         default:
 830                 BUG();
 831         }
 832 }
 833
 834 static inline struct drm_crtc *
 835 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 836 {
 837         struct drm_i915_private *dev_priv = dev->dev_private;
 838         return dev_priv->pipe_to_crtc_mapping[pipe];
 839 }
 840
 841 static inline struct drm_crtc *
 842 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 843 {
 844         struct drm_i915_private *dev_priv = dev->dev_private;
 845         return dev_priv->plane_to_crtc_mapping[plane];
 846 }
 847
 848 struct intel_unpin_work {
 849         struct work_struct work;
 850         struct drm_crtc *crtc;
 851         struct drm_framebuffer *old_fb;
 852         struct drm_i915_gem_object *pending_flip_obj;
 853         struct drm_pending_vblank_event *event;
 854         atomic_t pending;
 855 #define INTEL_FLIP_INACTIVE     0
 856 #define INTEL_FLIP_PENDING      1
 857 #define INTEL_FLIP_COMPLETE     2
 858         u32 flip_count;
 859         u32 gtt_offset;
 860         struct drm_i915_gem_request *flip_queued_req;
 861         int flip_queued_vblank;
 862         int flip_ready_vblank;
 863         bool enable_stall_check;
 864 };
 865
 866 struct intel_load_detect_pipe {
 867         struct drm_framebuffer *release_fb;
 868         bool load_detect_temp;
 869         int dpms_mode;
 870 };
 871
 872 static inline struct intel_encoder *
 873 intel_attached_encoder(struct drm_connector *connector)
 874 {
 875         return to_intel_connector(connector)->encoder;
 876 }
 877
 878 static inline struct intel_digital_port *
 879 enc_to_dig_port(struct drm_encoder *encoder)
 880 {
 881         return container_of(encoder, struct intel_digital_port, base.base);
 882 }
 883
 884 static inline struct intel_dp_mst_encoder *
 885 enc_to_mst(struct drm_encoder *encoder)
 886 {
 887         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
 888 }
 889
 890 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 891 {
 892         return &enc_to_dig_port(encoder)->dp;
 893 }
 894
 895 static inline struct intel_digital_port *
 896 dp_to_dig_port(struct intel_dp *intel_dp)
 897 {
 898         return container_of(intel_dp, struct intel_digital_port, dp);
 899 }
 900
 901 static inline struct intel_digital_port *
 902 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 903 {
 904         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 905 }
 906
 907 /*
 908  * Returns the number of planes for this pipe, ie the number of sprites + 1
 909  * (primary plane). This doesn't count the cursor plane then.
 910  */
 911 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
 912 {
 913         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
 914 }
 915
 916 /* intel_fifo_underrun.c */
 917 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 918                                            enum pipe pipe, bool enable);
 919 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
 920                                            enum transcoder pch_transcoder,
 921                                            bool enable);
 922 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 923                                          enum pipe pipe);
 924 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
 925                                          enum transcoder pch_transcoder);
 926 void i9xx_check_fifo_underruns(struct drm_i915_private *dev_priv);
 927
 928 /* i915_irq.c */
 929 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 930 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 931 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 932 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 933 void gen6_reset_rps_interrupts(struct drm_device *dev);
 934 void gen6_enable_rps_interrupts(struct drm_device *dev);
 935 void gen6_disable_rps_interrupts(struct drm_device *dev);
 936 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
 937 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
 938 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
 939 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
 940 {
 941         /*
 942          * We only use drm_irq_uninstall() at unload and VT switch, so
 943          * this is the only thing we need to check.
 944          */
 945         return dev_priv->pm.irqs_enabled;
 946 }
 947
 948 int intel_get_crtc_scanline(struct intel_crtc *crtc);
 949 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
 950                                      unsigned int pipe_mask);
 951
 952 /* intel_crt.c */
 953 void intel_crt_init(struct drm_device *dev);
 954
 955
 956 /* intel_ddi.c */
 957 void intel_prepare_ddi(struct drm_device *dev);
 958 void hsw_fdi_link_train(struct drm_crtc *crtc);
 959 void intel_ddi_init(struct drm_device *dev, enum port port);
 960 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
 961 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
 962 void intel_ddi_pll_init(struct drm_device *dev);
 963 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 964 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
 965                                        enum transcoder cpu_transcoder);
 966 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
 967 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
 968 bool intel_ddi_pll_select(struct intel_crtc *crtc,
 969                           struct intel_crtc_state *crtc_state);
 970 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 971 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
 972 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 973 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 974 void intel_ddi_get_config(struct intel_encoder *encoder,
 975                           struct intel_crtc_state *pipe_config);
 976 struct intel_encoder *
 977 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
 978
 979 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
 980 void intel_ddi_clock_get(struct intel_encoder *encoder,
 981                          struct intel_crtc_state *pipe_config);
 982 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
 983 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
 984
 985 /* intel_frontbuffer.c */
 986 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
 987                              enum fb_op_origin origin);
 988 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
 989                                     unsigned frontbuffer_bits);
 990 void intel_frontbuffer_flip_complete(struct drm_device *dev,
 991                                      unsigned frontbuffer_bits);
 992 void intel_frontbuffer_flip(struct drm_device *dev,
 993                             unsigned frontbuffer_bits);
 994 unsigned int intel_fb_align_height(struct drm_device *dev,
 995                                    unsigned int height,
 996                                    uint32_t pixel_format,
 997                                    uint64_t fb_format_modifier);
 998 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire,
 999                         enum fb_op_origin origin);
1000 u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
1001                               uint32_t pixel_format);
1002
1003 /* intel_audio.c */
1004 void intel_init_audio(struct drm_device *dev);
1005 void intel_audio_codec_enable(struct intel_encoder *encoder);
1006 void intel_audio_codec_disable(struct intel_encoder *encoder);
1007 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1008 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1009
1010 /* intel_display.c */
1011 extern const struct drm_plane_funcs intel_plane_funcs;
1012 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1013 int intel_pch_rawclk(struct drm_device *dev);
1014 void intel_mark_busy(struct drm_device *dev);
1015 void intel_mark_idle(struct drm_device *dev);
1016 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1017 int intel_display_suspend(struct drm_device *dev);
1018 void intel_encoder_destroy(struct drm_encoder *encoder);
1019 int intel_connector_init(struct intel_connector *);
1020 struct intel_connector *intel_connector_alloc(void);
1021 bool intel_connector_get_hw_state(struct intel_connector *connector);
1022 void intel_connector_attach_encoder(struct intel_connector *connector,
1023                                     struct intel_encoder *encoder);
1024 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
1025 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1026                                              struct drm_crtc *crtc);
1027 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1028 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1029                                 struct drm_file *file_priv);
1030 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1031                                              enum pipe pipe);
1032 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
1033 static inline void
1034 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1035 {
1036         drm_wait_one_vblank(dev, pipe);
1037 }
1038 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1039 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1040                          struct intel_digital_port *dport,
1041                          unsigned int expected_mask);
1042 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1043                                 struct drm_display_mode *mode,
1044                                 struct intel_load_detect_pipe *old,
1045                                 struct drm_modeset_acquire_ctx *ctx);
1046 void intel_release_load_detect_pipe(struct drm_connector *connector,
1047                                     struct intel_load_detect_pipe *old,
1048                                     struct drm_modeset_acquire_ctx *ctx);
1049 int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
1050                                struct drm_framebuffer *fb,
1051                                const struct drm_plane_state *plane_state,
1052                                struct intel_engine_cs *pipelined,
1053                                struct drm_i915_gem_request **pipelined_request);
1054 struct drm_framebuffer *
1055 __intel_framebuffer_create(struct drm_device *dev,
1056                            struct drm_mode_fb_cmd2 *mode_cmd,
1057                            struct drm_i915_gem_object *obj);
1058 void intel_prepare_page_flip(struct drm_device *dev, int plane);
1059 void intel_finish_page_flip(struct drm_device *dev, int pipe);
1060 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
1061 void intel_check_page_flip(struct drm_device *dev, int pipe);
1062 int intel_prepare_plane_fb(struct drm_plane *plane,
1063                            struct drm_framebuffer *fb,
1064                            const struct drm_plane_state *new_state);
1065 void intel_cleanup_plane_fb(struct drm_plane *plane,
1066                             struct drm_framebuffer *fb,
1067                             const struct drm_plane_state *old_state);
1068 int intel_plane_atomic_get_property(struct drm_plane *plane,
1069                                     const struct drm_plane_state *state,
1070                                     struct drm_property *property,
1071                                     uint64_t *val);
1072 int intel_plane_atomic_set_property(struct drm_plane *plane,
1073                                     struct drm_plane_state *state,
1074                                     struct drm_property *property,
1075                                     uint64_t val);
1076 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1077                                     struct drm_plane_state *plane_state);
1078
1079 unsigned int
1080 intel_tile_height(struct drm_device *dev, uint32_t pixel_format,
1081                   uint64_t fb_format_modifier);
1082
1083 static inline bool
1084 intel_rotation_90_or_270(unsigned int rotation)
1085 {
1086         return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
1087 }
1088
1089 void intel_create_rotation_property(struct drm_device *dev,
1090                                         struct intel_plane *plane);
1091
1092 /* shared dpll functions */
1093 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
1094 void assert_shared_dpll(struct drm_i915_private *dev_priv,
1095                         struct intel_shared_dpll *pll,
1096                         bool state);
1097 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
1098 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
1099 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
1100                                                 struct intel_crtc_state *state);
1101
1102 void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
1103                       const struct dpll *dpll);
1104 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
1105
1106 /* modesetting asserts */
1107 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1108                            enum pipe pipe);
1109 void assert_pll(struct drm_i915_private *dev_priv,
1110                 enum pipe pipe, bool state);
1111 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1112 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1113 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1114                        enum pipe pipe, bool state);
1115 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1116 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1117 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1118 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1119 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1120 unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv,
1121                                              int *x, int *y,
1122                                              unsigned int tiling_mode,
1123                                              unsigned int bpp,
1124                                              unsigned int pitch);
1125 void intel_prepare_reset(struct drm_device *dev);
1126 void intel_finish_reset(struct drm_device *dev);
1127 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1128 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1129 void broxton_init_cdclk(struct drm_device *dev);
1130 void broxton_uninit_cdclk(struct drm_device *dev);
1131 void broxton_ddi_phy_init(struct drm_device *dev);
1132 void broxton_ddi_phy_uninit(struct drm_device *dev);
1133 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1134 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1135 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1136 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1137 void intel_dp_get_m_n(struct intel_crtc *crtc,
1138                       struct intel_crtc_state *pipe_config);
1139 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1140 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1141 void
1142 ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
1143                                 int dotclock);
1144 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1145                         intel_clock_t *best_clock);
1146 int chv_calc_dpll_params(int refclk, intel_clock_t *pll_clock);
1147
1148 bool intel_crtc_active(struct drm_crtc *crtc);
1149 void hsw_enable_ips(struct intel_crtc *crtc);
1150 void hsw_disable_ips(struct intel_crtc *crtc);
1151 enum intel_display_power_domain
1152 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1153 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1154                                  struct intel_crtc_state *pipe_config);
1155 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
1156 void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
1157
1158 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1159 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1160
1161 unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
1162                                      struct drm_i915_gem_object *obj);
1163 u32 skl_plane_ctl_format(uint32_t pixel_format);
1164 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1165 u32 skl_plane_ctl_rotation(unsigned int rotation);
1166
1167 /* intel_csr.c */
1168 void intel_csr_ucode_init(struct drm_device *dev);
1169 enum csr_state intel_csr_load_status_get(struct drm_i915_private *dev_priv);
1170 void intel_csr_load_status_set(struct drm_i915_private *dev_priv,
1171                                         enum csr_state state);
1172 void intel_csr_load_program(struct drm_device *dev);
1173 void intel_csr_ucode_fini(struct drm_device *dev);
1174 void assert_csr_loaded(struct drm_i915_private *dev_priv);
1175
1176 /* intel_dp.c */
1177 void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
1178 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1179                              struct intel_connector *intel_connector);
1180 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1181                               const struct intel_crtc_state *pipe_config);
1182 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1183 void intel_dp_complete_link_train(struct intel_dp *intel_dp);
1184 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1185 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1186 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1187 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1188 bool intel_dp_compute_config(struct intel_encoder *encoder,
1189                              struct intel_crtc_state *pipe_config);
1190 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1191 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1192                                   bool long_hpd);
1193 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1194 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1195 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1196 void intel_edp_panel_on(struct intel_dp *intel_dp);
1197 void intel_edp_panel_off(struct intel_dp *intel_dp);
1198 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1199 void intel_dp_mst_suspend(struct drm_device *dev);
1200 void intel_dp_mst_resume(struct drm_device *dev);
1201 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1202 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1203 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1204 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1205 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1206 void intel_plane_destroy(struct drm_plane *plane);
1207 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1208 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1209 void intel_edp_drrs_invalidate(struct drm_device *dev,
1210                 unsigned frontbuffer_bits);
1211 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1212
1213 /* intel_dp_mst.c */
1214 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1215 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1216 /* intel_dsi.c */
1217 void intel_dsi_init(struct drm_device *dev);
1218
1219
1220 /* intel_dvo.c */
1221 void intel_dvo_init(struct drm_device *dev);
1222
1223
1224 /* legacy fbdev emulation in intel_fbdev.c */
1225 #ifdef CONFIG_DRM_I915_FBDEV
1226 extern int intel_fbdev_init(struct drm_device *dev);
1227 extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
1228 extern void intel_fbdev_fini(struct drm_device *dev);
1229 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1230 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1231 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1232 #else
1233 static inline int intel_fbdev_init(struct drm_device *dev)
1234 {
1235         return 0;
1236 }
1237
1238 static inline void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
1239 {
1240 }
1241
1242 static inline void intel_fbdev_fini(struct drm_device *dev)
1243 {
1244 }
1245
1246 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1247 {
1248 }
1249
1250 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1251 {
1252 }
1253 #endif
1254
1255 /* intel_fbc.c */
1256 bool intel_fbc_enabled(struct drm_i915_private *dev_priv);
1257 void intel_fbc_update(struct drm_i915_private *dev_priv);
1258 void intel_fbc_init(struct drm_i915_private *dev_priv);
1259 void intel_fbc_disable(struct drm_i915_private *dev_priv);
1260 void intel_fbc_disable_crtc(struct intel_crtc *crtc);
1261 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1262                           unsigned int frontbuffer_bits,
1263                           enum fb_op_origin origin);
1264 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1265                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1266 const char *intel_no_fbc_reason_str(enum no_fbc_reason reason);
1267 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1268
1269 /* intel_hdmi.c */
1270 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
1271 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1272                                struct intel_connector *intel_connector);
1273 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1274 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1275                                struct intel_crtc_state *pipe_config);
1276
1277
1278 /* intel_lvds.c */
1279 void intel_lvds_init(struct drm_device *dev);
1280 bool intel_is_dual_link_lvds(struct drm_device *dev);
1281
1282
1283 /* intel_modes.c */
1284 int intel_connector_update_modes(struct drm_connector *connector,
1285                                  struct edid *edid);
1286 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1287 void intel_attach_force_audio_property(struct drm_connector *connector);
1288 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1289
1290
1291 /* intel_overlay.c */
1292 void intel_setup_overlay(struct drm_device *dev);
1293 void intel_cleanup_overlay(struct drm_device *dev);
1294 int intel_overlay_switch_off(struct intel_overlay *overlay);
1295 int intel_overlay_put_image(struct drm_device *dev, void *data,
1296                             struct drm_file *file_priv);
1297 int intel_overlay_attrs(struct drm_device *dev, void *data,
1298                         struct drm_file *file_priv);
1299 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1300
1301
1302 /* intel_panel.c */
1303 int intel_panel_init(struct intel_panel *panel,
1304                      struct drm_display_mode *fixed_mode,
1305                      struct drm_display_mode *downclock_mode);
1306 void intel_panel_fini(struct intel_panel *panel);
1307 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1308                             struct drm_display_mode *adjusted_mode);
1309 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1310                              struct intel_crtc_state *pipe_config,
1311                              int fitting_mode);
1312 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1313                               struct intel_crtc_state *pipe_config,
1314                               int fitting_mode);
1315 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1316                                     u32 level, u32 max);
1317 int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe);
1318 void intel_panel_enable_backlight(struct intel_connector *connector);
1319 void intel_panel_disable_backlight(struct intel_connector *connector);
1320 void intel_panel_destroy_backlight(struct drm_connector *connector);
1321 void intel_panel_init_backlight_funcs(struct drm_device *dev);
1322 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1323 extern struct drm_display_mode *intel_find_panel_downclock(
1324                                 struct drm_device *dev,
1325                                 struct drm_display_mode *fixed_mode,
1326                                 struct drm_connector *connector);
1327 void intel_backlight_register(struct drm_device *dev);
1328 void intel_backlight_unregister(struct drm_device *dev);
1329
1330
1331 /* intel_psr.c */
1332 void intel_psr_enable(struct intel_dp *intel_dp);
1333 void intel_psr_disable(struct intel_dp *intel_dp);
1334 void intel_psr_invalidate(struct drm_device *dev,
1335                           unsigned frontbuffer_bits);
1336 void intel_psr_flush(struct drm_device *dev,
1337                      unsigned frontbuffer_bits,
1338                      enum fb_op_origin origin);
1339 void intel_psr_init(struct drm_device *dev);
1340 void intel_psr_single_frame_update(struct drm_device *dev,
1341                                    unsigned frontbuffer_bits);
1342
1343 /* intel_runtime_pm.c */
1344 int intel_power_domains_init(struct drm_i915_private *);
1345 void intel_power_domains_fini(struct drm_i915_private *);
1346 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
1347 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1348
1349 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1350                                     enum intel_display_power_domain domain);
1351 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1352                                       enum intel_display_power_domain domain);
1353 void intel_display_power_get(struct drm_i915_private *dev_priv,
1354                              enum intel_display_power_domain domain);
1355 void intel_display_power_put(struct drm_i915_private *dev_priv,
1356                              enum intel_display_power_domain domain);
1357 void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
1358 void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
1359 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1360 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1361 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1362
1363 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1364
1365 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1366                              bool override, unsigned int mask);
1367 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1368                           enum dpio_channel ch, bool override);
1369
1370
1371 /* intel_pm.c */
1372 void intel_init_clock_gating(struct drm_device *dev);
1373 void intel_suspend_hw(struct drm_device *dev);
1374 int ilk_wm_max_level(const struct drm_device *dev);
1375 void intel_update_watermarks(struct drm_crtc *crtc);
1376 void intel_update_sprite_watermarks(struct drm_plane *plane,
1377                                     struct drm_crtc *crtc,
1378                                     uint32_t sprite_width,
1379                                     uint32_t sprite_height,
1380                                     int pixel_size,
1381                                     bool enabled, bool scaled);
1382 void intel_init_pm(struct drm_device *dev);
1383 void intel_pm_setup(struct drm_device *dev);
1384 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1385 void intel_gpu_ips_teardown(void);
1386 void intel_init_gt_powersave(struct drm_device *dev);
1387 void intel_cleanup_gt_powersave(struct drm_device *dev);
1388 void intel_enable_gt_powersave(struct drm_device *dev);
1389 void intel_disable_gt_powersave(struct drm_device *dev);
1390 void intel_suspend_gt_powersave(struct drm_device *dev);
1391 void intel_reset_gt_powersave(struct drm_device *dev);
1392 void gen6_update_ring_freq(struct drm_device *dev);
1393 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1394 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1395 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1396 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1397                     struct intel_rps_client *rps,
1398                     unsigned long submitted);
1399 void intel_queue_rps_boost_for_request(struct drm_device *dev,
1400                                        struct drm_i915_gem_request *req);
1401 void vlv_wm_get_hw_state(struct drm_device *dev);
1402 void ilk_wm_get_hw_state(struct drm_device *dev);
1403 void skl_wm_get_hw_state(struct drm_device *dev);
1404 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1405                           struct skl_ddb_allocation *ddb /* out */);
1406 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1407
1408 /* intel_sdvo.c */
1409 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1410
1411
1412 /* intel_sprite.c */
1413 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1414 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1415                               struct drm_file *file_priv);
1416 void intel_pipe_update_start(struct intel_crtc *crtc,
1417                              uint32_t *start_vbl_count);
1418 void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count);
1419
1420 /* intel_tv.c */
1421 void intel_tv_init(struct drm_device *dev);
1422
1423 /* intel_atomic.c */
1424 int intel_connector_atomic_get_property(struct drm_connector *connector,
1425                                         const struct drm_connector_state *state,
1426                                         struct drm_property *property,
1427                                         uint64_t *val);
1428 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1429 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1430                                struct drm_crtc_state *state);
1431 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1432 void intel_atomic_state_clear(struct drm_atomic_state *);
1433 struct intel_shared_dpll_config *
1434 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1435
1436 static inline struct intel_crtc_state *
1437 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1438                             struct intel_crtc *crtc)
1439 {
1440         struct drm_crtc_state *crtc_state;
1441         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1442         if (IS_ERR(crtc_state))
1443                 return ERR_CAST(crtc_state);
1444
1445         return to_intel_crtc_state(crtc_state);
1446 }
1447 int intel_atomic_setup_scalers(struct drm_device *dev,
1448         struct intel_crtc *intel_crtc,
1449         struct intel_crtc_state *crtc_state);
1450
1451 /* intel_atomic_plane.c */
1452 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1453 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1454 void intel_plane_destroy_state(struct drm_plane *plane,
1455                                struct drm_plane_state *state);
1456 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1457
1458 #endif /* __INTEL_DRV_H__ */