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/i2c.h>
  29 #include <linux/hdmi.h>
  30 #include <drm/i915_drm.h>
  31 #include "i915_drv.h"
  32 #include <drm/drm_crtc.h>
  33 #include <drm/drm_crtc_helper.h>
  34 #include <drm/drm_fb_helper.h>
  35 #include <drm/drm_dp_helper.h>
  36
  37 /**
  38  * _wait_for - magic (register) wait macro
  39  *
  40  * Does the right thing for modeset paths when run under kdgb or similar atomic
  41  * contexts. Note that it's important that we check the condition again after
  42  * having timed out, since the timeout could be due to preemption or similar and
  43  * we've never had a chance to check the condition before the timeout.
  44  */
  45 #define _wait_for(COND, MS, W) ({ \
  46         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
  47         int ret__ = 0;                                                  \
  48         while (!(COND)) {                                               \
  49                 if (time_after(jiffies, timeout__)) {                   \
  50                         if (!(COND))                                    \
  51                                 ret__ = -ETIMEDOUT;                     \
  52                         break;                                          \
  53                 }                                                       \
  54                 if (W && drm_can_sleep())  {                            \
  55                         msleep(W);                                      \
  56                 } else {                                                \
  57                         cpu_relax();                                    \
  58                 }                                                       \
  59         }                                                               \
  60         ret__;                                                          \
  61 })
  62
  63 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  64 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  65 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
  66                                                DIV_ROUND_UP((US), 1000), 0)
  67
  68 #define KHz(x) (1000 * (x))
  69 #define MHz(x) KHz(1000 * (x))
  70
  71 /*
  72  * Display related stuff
  73  */
  74
  75 /* store information about an Ixxx DVO */
  76 /* The i830->i865 use multiple DVOs with multiple i2cs */
  77 /* the i915, i945 have a single sDVO i2c bus - which is different */
  78 #define MAX_OUTPUTS 6
  79 /* maximum connectors per crtcs in the mode set */
  80
  81 /* Maximum cursor sizes */
  82 #define GEN2_CURSOR_WIDTH 64
  83 #define GEN2_CURSOR_HEIGHT 64
  84 #define MAX_CURSOR_WIDTH 256
  85 #define MAX_CURSOR_HEIGHT 256
  86
  87 #define INTEL_I2C_BUS_DVO 1
  88 #define INTEL_I2C_BUS_SDVO 2
  89
  90 /* these are outputs from the chip - integrated only
  91    external chips are via DVO or SDVO output */
  92 #define INTEL_OUTPUT_UNUSED 0
  93 #define INTEL_OUTPUT_ANALOG 1
  94 #define INTEL_OUTPUT_DVO 2
  95 #define INTEL_OUTPUT_SDVO 3
  96 #define INTEL_OUTPUT_LVDS 4
  97 #define INTEL_OUTPUT_TVOUT 5
  98 #define INTEL_OUTPUT_HDMI 6
  99 #define INTEL_OUTPUT_DISPLAYPORT 7
 100 #define INTEL_OUTPUT_EDP 8
 101 #define INTEL_OUTPUT_DSI 9
 102 #define INTEL_OUTPUT_UNKNOWN 10
 103
 104 #define INTEL_DVO_CHIP_NONE 0
 105 #define INTEL_DVO_CHIP_LVDS 1
 106 #define INTEL_DVO_CHIP_TMDS 2
 107 #define INTEL_DVO_CHIP_TVOUT 4
 108
 109 #define INTEL_DSI_VIDEO_MODE    0
 110 #define INTEL_DSI_COMMAND_MODE  1
 111
 112 struct intel_framebuffer {
 113         struct drm_framebuffer base;
 114         struct drm_i915_gem_object *obj;
 115 };
 116
 117 struct intel_fbdev {
 118         struct drm_fb_helper helper;
 119         struct intel_framebuffer *fb;
 120         struct list_head fbdev_list;
 121         struct drm_display_mode *our_mode;
 122         int preferred_bpp;
 123 };
 124
 125 struct intel_encoder {
 126         struct drm_encoder base;
 127         /*
 128          * The new crtc this encoder will be driven from. Only differs from
 129          * base->crtc while a modeset is in progress.
 130          */
 131         struct intel_crtc *new_crtc;
 132
 133         int type;
 134         unsigned int cloneable;
 135         bool connectors_active;
 136         void (*hot_plug)(struct intel_encoder *);
 137         bool (*compute_config)(struct intel_encoder *,
 138                                struct intel_crtc_config *);
 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         /* Read out the current hw state of this connector, returning true if
 146          * the encoder is active. If the encoder is enabled it also set the pipe
 147          * it is connected to in the pipe parameter. */
 148         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 149         /* Reconstructs the equivalent mode flags for the current hardware
 150          * state. This must be called _after_ display->get_pipe_config has
 151          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 152          * be set correctly before calling this function. */
 153         void (*get_config)(struct intel_encoder *,
 154                            struct intel_crtc_config *pipe_config);
 155         int crtc_mask;
 156         enum hpd_pin hpd_pin;
 157 };
 158
 159 struct intel_panel {
 160         struct drm_display_mode *fixed_mode;
 161         struct drm_display_mode *downclock_mode;
 162         int fitting_mode;
 163
 164         /* backlight */
 165         struct {
 166                 bool present;
 167                 u32 level;
 168                 u32 max;
 169                 bool enabled;
 170                 bool combination_mode;  /* gen 2/4 only */
 171                 bool active_low_pwm;
 172                 struct backlight_device *device;
 173         } backlight;
 174 };
 175
 176 struct intel_connector {
 177         struct drm_connector base;
 178         /*
 179          * The fixed encoder this connector is connected to.
 180          */
 181         struct intel_encoder *encoder;
 182
 183         /*
 184          * The new encoder this connector will be driven. Only differs from
 185          * encoder while a modeset is in progress.
 186          */
 187         struct intel_encoder *new_encoder;
 188
 189         /* Reads out the current hw, returning true if the connector is enabled
 190          * and active (i.e. dpms ON state). */
 191         bool (*get_hw_state)(struct intel_connector *);
 192
 193         /*
 194          * Removes all interfaces through which the connector is accessible
 195          * - like sysfs, debugfs entries -, so that no new operations can be
 196          * started on the connector. Also makes sure all currently pending
 197          * operations finish before returing.
 198          */
 199         void (*unregister)(struct intel_connector *);
 200
 201         /* Panel info for eDP and LVDS */
 202         struct intel_panel panel;
 203
 204         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 205         struct edid *edid;
 206
 207         /* since POLL and HPD connectors may use the same HPD line keep the native
 208            state of connector->polled in case hotplug storm detection changes it */
 209         u8 polled;
 210 };
 211
 212 typedef struct dpll {
 213         /* given values */
 214         int n;
 215         int m1, m2;
 216         int p1, p2;
 217         /* derived values */
 218         int     dot;
 219         int     vco;
 220         int     m;
 221         int     p;
 222 } intel_clock_t;
 223
 224 struct intel_plane_config {
 225         bool tiled;
 226         int size;
 227         u32 base;
 228 };
 229
 230 struct intel_crtc_config {
 231         /**
 232          * quirks - bitfield with hw state readout quirks
 233          *
 234          * For various reasons the hw state readout code might not be able to
 235          * completely faithfully read out the current state. These cases are
 236          * tracked with quirk flags so that fastboot and state checker can act
 237          * accordingly.
 238          */
 239 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 240 #define PIPE_CONFIG_QUIRK_INHERITED_MODE        (1<<1) /* mode inherited from firmware */
 241         unsigned long quirks;
 242
 243         /* User requested mode, only valid as a starting point to
 244          * compute adjusted_mode, except in the case of (S)DVO where
 245          * it's also for the output timings of the (S)DVO chip.
 246          * adjusted_mode will then correspond to the S(DVO) chip's
 247          * preferred input timings. */
 248         struct drm_display_mode requested_mode;
 249         /* Actual pipe timings ie. what we program into the pipe timing
 250          * registers. adjusted_mode.crtc_clock is the pipe pixel clock. */
 251         struct drm_display_mode adjusted_mode;
 252
 253         /* Pipe source size (ie. panel fitter input size)
 254          * All planes will be positioned inside this space,
 255          * and get clipped at the edges. */
 256         int pipe_src_w, pipe_src_h;
 257
 258         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 259          * between pch encoders and cpu encoders. */
 260         bool has_pch_encoder;
 261
 262         /* CPU Transcoder for the pipe. Currently this can only differ from the
 263          * pipe on Haswell (where we have a special eDP transcoder). */
 264         enum transcoder cpu_transcoder;
 265
 266         /*
 267          * Use reduced/limited/broadcast rbg range, compressing from the full
 268          * range fed into the crtcs.
 269          */
 270         bool limited_color_range;
 271
 272         /* DP has a bunch of special case unfortunately, so mark the pipe
 273          * accordingly. */
 274         bool has_dp_encoder;
 275
 276         /* Whether we should send NULL infoframes. Required for audio. */
 277         bool has_hdmi_sink;
 278
 279         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 280          * has_dp_encoder is set. */
 281         bool has_audio;
 282
 283         /*
 284          * Enable dithering, used when the selected pipe bpp doesn't match the
 285          * plane bpp.
 286          */
 287         bool dither;
 288
 289         /* Controls for the clock computation, to override various stages. */
 290         bool clock_set;
 291
 292         /* SDVO TV has a bunch of special case. To make multifunction encoders
 293          * work correctly, we need to track this at runtime.*/
 294         bool sdvo_tv_clock;
 295
 296         /*
 297          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 298          * required. This is set in the 2nd loop of calling encoder's
 299          * ->compute_config if the first pick doesn't work out.
 300          */
 301         bool bw_constrained;
 302
 303         /* Settings for the intel dpll used on pretty much everything but
 304          * haswell. */
 305         struct dpll dpll;
 306
 307         /* Selected dpll when shared or DPLL_ID_PRIVATE. */
 308         enum intel_dpll_id shared_dpll;
 309
 310         /* Actual register state of the dpll, for shared dpll cross-checking. */
 311         struct intel_dpll_hw_state dpll_hw_state;
 312
 313         int pipe_bpp;
 314         struct intel_link_m_n dp_m_n;
 315
 316         /* m2_n2 for eDP downclock */
 317         struct intel_link_m_n dp_m2_n2;
 318
 319         /*
 320          * Frequence the dpll for the port should run at. Differs from the
 321          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 322          * already multiplied by pixel_multiplier.
 323          */
 324         int port_clock;
 325
 326         /* Used by SDVO (and if we ever fix it, HDMI). */
 327         unsigned pixel_multiplier;
 328
 329         /* Panel fitter controls for gen2-gen4 + VLV */
 330         struct {
 331                 u32 control;
 332                 u32 pgm_ratios;
 333                 u32 lvds_border_bits;
 334         } gmch_pfit;
 335
 336         /* Panel fitter placement and size for Ironlake+ */
 337         struct {
 338                 u32 pos;
 339                 u32 size;
 340                 bool enabled;
 341         } pch_pfit;
 342
 343         /* FDI configuration, only valid if has_pch_encoder is set. */
 344         int fdi_lanes;
 345         struct intel_link_m_n fdi_m_n;
 346
 347         bool ips_enabled;
 348
 349         bool double_wide;
 350 };
 351
 352 struct intel_pipe_wm {
 353         struct intel_wm_level wm[5];
 354         uint32_t linetime;
 355         bool fbc_wm_enabled;
 356         bool pipe_enabled;
 357         bool sprites_enabled;
 358         bool sprites_scaled;
 359 };
 360
 361 struct intel_mmio_flip {
 362         u32 seqno;
 363         u32 ring_id;
 364 };
 365
 366 struct intel_crtc {
 367         struct drm_crtc base;
 368         enum pipe pipe;
 369         enum plane plane;
 370         u8 lut_r[256], lut_g[256], lut_b[256];
 371         /*
 372          * Whether the crtc and the connected output pipeline is active. Implies
 373          * that crtc->enabled is set, i.e. the current mode configuration has
 374          * some outputs connected to this crtc.
 375          */
 376         bool active;
 377         unsigned long enabled_power_domains;
 378         bool primary_enabled; /* is the primary plane (partially) visible? */
 379         bool lowfreq_avail;
 380         struct intel_overlay *overlay;
 381         struct intel_unpin_work *unpin_work;
 382
 383         atomic_t unpin_work_count;
 384
 385         /* Display surface base address adjustement for pageflips. Note that on
 386          * gen4+ this only adjusts up to a tile, offsets within a tile are
 387          * handled in the hw itself (with the TILEOFF register). */
 388         unsigned long dspaddr_offset;
 389
 390         struct drm_i915_gem_object *cursor_bo;
 391         uint32_t cursor_addr;
 392         int16_t cursor_width, cursor_height;
 393         uint32_t cursor_cntl;
 394         uint32_t cursor_base;
 395
 396         struct intel_plane_config plane_config;
 397         struct intel_crtc_config config;
 398         struct intel_crtc_config *new_config;
 399         bool new_enabled;
 400
 401         uint32_t ddi_pll_sel;
 402
 403         /* reset counter value when the last flip was submitted */
 404         unsigned int reset_counter;
 405
 406         /* Access to these should be protected by dev_priv->irq_lock. */
 407         bool cpu_fifo_underrun_disabled;
 408         bool pch_fifo_underrun_disabled;
 409
 410         /* per-pipe watermark state */
 411         struct {
 412                 /* watermarks currently being used  */
 413                 struct intel_pipe_wm active;
 414         } wm;
 415
 416         wait_queue_head_t vbl_wait;
 417
 418         int scanline_offset;
 419         struct intel_mmio_flip mmio_flip;
 420 };
 421
 422 struct intel_plane_wm_parameters {
 423         uint32_t horiz_pixels;
 424         uint8_t bytes_per_pixel;
 425         bool enabled;
 426         bool scaled;
 427 };
 428
 429 struct intel_plane {
 430         struct drm_plane base;
 431         int plane;
 432         enum pipe pipe;
 433         struct drm_i915_gem_object *obj;
 434         bool can_scale;
 435         int max_downscale;
 436         int crtc_x, crtc_y;
 437         unsigned int crtc_w, crtc_h;
 438         uint32_t src_x, src_y;
 439         uint32_t src_w, src_h;
 440
 441         /* Since we need to change the watermarks before/after
 442          * enabling/disabling the planes, we need to store the parameters here
 443          * as the other pieces of the struct may not reflect the values we want
 444          * for the watermark calculations. Currently only Haswell uses this.
 445          */
 446         struct intel_plane_wm_parameters wm;
 447
 448         void (*update_plane)(struct drm_plane *plane,
 449                              struct drm_crtc *crtc,
 450                              struct drm_framebuffer *fb,
 451                              struct drm_i915_gem_object *obj,
 452                              int crtc_x, int crtc_y,
 453                              unsigned int crtc_w, unsigned int crtc_h,
 454                              uint32_t x, uint32_t y,
 455                              uint32_t src_w, uint32_t src_h);
 456         void (*disable_plane)(struct drm_plane *plane,
 457                               struct drm_crtc *crtc);
 458         int (*update_colorkey)(struct drm_plane *plane,
 459                                struct drm_intel_sprite_colorkey *key);
 460         void (*get_colorkey)(struct drm_plane *plane,
 461                              struct drm_intel_sprite_colorkey *key);
 462 };
 463
 464 struct intel_watermark_params {
 465         unsigned long fifo_size;
 466         unsigned long max_wm;
 467         unsigned long default_wm;
 468         unsigned long guard_size;
 469         unsigned long cacheline_size;
 470 };
 471
 472 struct cxsr_latency {
 473         int is_desktop;
 474         int is_ddr3;
 475         unsigned long fsb_freq;
 476         unsigned long mem_freq;
 477         unsigned long display_sr;
 478         unsigned long display_hpll_disable;
 479         unsigned long cursor_sr;
 480         unsigned long cursor_hpll_disable;
 481 };
 482
 483 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 484 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 485 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 486 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 487 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 488
 489 struct intel_hdmi {
 490         u32 hdmi_reg;
 491         int ddc_bus;
 492         uint32_t color_range;
 493         bool color_range_auto;
 494         bool has_hdmi_sink;
 495         bool has_audio;
 496         enum hdmi_force_audio force_audio;
 497         bool rgb_quant_range_selectable;
 498         void (*write_infoframe)(struct drm_encoder *encoder,
 499                                 enum hdmi_infoframe_type type,
 500                                 const void *frame, ssize_t len);
 501         void (*set_infoframes)(struct drm_encoder *encoder,
 502                                bool enable,
 503                                struct drm_display_mode *adjusted_mode);
 504 };
 505
 506 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 507
 508 /**
 509  * HIGH_RR is the highest eDP panel refresh rate read from EDID
 510  * LOW_RR is the lowest eDP panel refresh rate found from EDID
 511  * parsing for same resolution.
 512  */
 513 enum edp_drrs_refresh_rate_type {
 514         DRRS_HIGH_RR,
 515         DRRS_LOW_RR,
 516         DRRS_MAX_RR, /* RR count */
 517 };
 518
 519 struct intel_dp {
 520         uint32_t output_reg;
 521         uint32_t aux_ch_ctl_reg;
 522         uint32_t DP;
 523         bool has_audio;
 524         enum hdmi_force_audio force_audio;
 525         uint32_t color_range;
 526         bool color_range_auto;
 527         uint8_t link_bw;
 528         uint8_t lane_count;
 529         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 530         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 531         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 532         struct drm_dp_aux aux;
 533         uint8_t train_set[4];
 534         int panel_power_up_delay;
 535         int panel_power_down_delay;
 536         int panel_power_cycle_delay;
 537         int backlight_on_delay;
 538         int backlight_off_delay;
 539         struct delayed_work panel_vdd_work;
 540         bool want_panel_vdd;
 541         unsigned long last_power_cycle;
 542         unsigned long last_power_on;
 543         unsigned long last_backlight_off;
 544         bool use_tps3;
 545         struct intel_connector *attached_connector;
 546
 547         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 548         /*
 549          * This function returns the value we have to program the AUX_CTL
 550          * register with to kick off an AUX transaction.
 551          */
 552         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 553                                      bool has_aux_irq,
 554                                      int send_bytes,
 555                                      uint32_t aux_clock_divider);
 556         struct {
 557                 enum drrs_support_type type;
 558                 enum edp_drrs_refresh_rate_type refresh_rate_type;
 559                 struct mutex mutex;
 560         } drrs_state;
 561
 562 };
 563
 564 struct intel_digital_port {
 565         struct intel_encoder base;
 566         enum port port;
 567         u32 saved_port_bits;
 568         struct intel_dp dp;
 569         struct intel_hdmi hdmi;
 570 };
 571
 572 static inline int
 573 vlv_dport_to_channel(struct intel_digital_port *dport)
 574 {
 575         switch (dport->port) {
 576         case PORT_B:
 577         case PORT_D:
 578                 return DPIO_CH0;
 579         case PORT_C:
 580                 return DPIO_CH1;
 581         default:
 582                 BUG();
 583         }
 584 }
 585
 586 static inline int
 587 vlv_pipe_to_channel(enum pipe pipe)
 588 {
 589         switch (pipe) {
 590         case PIPE_A:
 591         case PIPE_C:
 592                 return DPIO_CH0;
 593         case PIPE_B:
 594                 return DPIO_CH1;
 595         default:
 596                 BUG();
 597         }
 598 }
 599
 600 static inline struct drm_crtc *
 601 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 602 {
 603         struct drm_i915_private *dev_priv = dev->dev_private;
 604         return dev_priv->pipe_to_crtc_mapping[pipe];
 605 }
 606
 607 static inline struct drm_crtc *
 608 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 609 {
 610         struct drm_i915_private *dev_priv = dev->dev_private;
 611         return dev_priv->plane_to_crtc_mapping[plane];
 612 }
 613
 614 struct intel_unpin_work {
 615         struct work_struct work;
 616         struct drm_crtc *crtc;
 617         struct drm_i915_gem_object *old_fb_obj;
 618         struct drm_i915_gem_object *pending_flip_obj;
 619         struct drm_pending_vblank_event *event;
 620         atomic_t pending;
 621 #define INTEL_FLIP_INACTIVE     0
 622 #define INTEL_FLIP_PENDING      1
 623 #define INTEL_FLIP_COMPLETE     2
 624         u32 flip_count;
 625         u32 gtt_offset;
 626         bool enable_stall_check;
 627 };
 628
 629 struct intel_set_config {
 630         struct drm_encoder **save_connector_encoders;
 631         struct drm_crtc **save_encoder_crtcs;
 632         bool *save_crtc_enabled;
 633
 634         bool fb_changed;
 635         bool mode_changed;
 636 };
 637
 638 struct intel_load_detect_pipe {
 639         struct drm_framebuffer *release_fb;
 640         bool load_detect_temp;
 641         int dpms_mode;
 642 };
 643
 644 static inline struct intel_encoder *
 645 intel_attached_encoder(struct drm_connector *connector)
 646 {
 647         return to_intel_connector(connector)->encoder;
 648 }
 649
 650 static inline struct intel_digital_port *
 651 enc_to_dig_port(struct drm_encoder *encoder)
 652 {
 653         return container_of(encoder, struct intel_digital_port, base.base);
 654 }
 655
 656 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 657 {
 658         return &enc_to_dig_port(encoder)->dp;
 659 }
 660
 661 static inline struct intel_digital_port *
 662 dp_to_dig_port(struct intel_dp *intel_dp)
 663 {
 664         return container_of(intel_dp, struct intel_digital_port, dp);
 665 }
 666
 667 static inline struct intel_digital_port *
 668 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 669 {
 670         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 671 }
 672
 673
 674 /* i915_irq.c */
 675 bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 676                                            enum pipe pipe, bool enable);
 677 bool intel_set_pch_fifo_underrun_reporting(struct drm_device *dev,
 678                                            enum transcoder pch_transcoder,
 679                                            bool enable);
 680 void ilk_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 681 void ilk_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 682 void snb_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 683 void snb_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 684 void bdw_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 685 void bdw_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 686 void intel_runtime_pm_disable_interrupts(struct drm_device *dev);
 687 void intel_runtime_pm_restore_interrupts(struct drm_device *dev);
 688 int intel_get_crtc_scanline(struct intel_crtc *crtc);
 689 void i9xx_check_fifo_underruns(struct drm_device *dev);
 690
 691
 692 /* intel_crt.c */
 693 void intel_crt_init(struct drm_device *dev);
 694
 695
 696 /* intel_ddi.c */
 697 void intel_prepare_ddi(struct drm_device *dev);
 698 void hsw_fdi_link_train(struct drm_crtc *crtc);
 699 void intel_ddi_init(struct drm_device *dev, enum port port);
 700 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
 701 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
 702 int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv);
 703 void intel_ddi_pll_init(struct drm_device *dev);
 704 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 705 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
 706                                        enum transcoder cpu_transcoder);
 707 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
 708 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
 709 void intel_ddi_setup_hw_pll_state(struct drm_device *dev);
 710 bool intel_ddi_pll_select(struct intel_crtc *crtc);
 711 void intel_ddi_pll_enable(struct intel_crtc *crtc);
 712 void intel_ddi_put_crtc_pll(struct drm_crtc *crtc);
 713 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 714 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
 715 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 716 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 717 void intel_ddi_get_config(struct intel_encoder *encoder,
 718                           struct intel_crtc_config *pipe_config);
 719
 720
 721 /* intel_display.c */
 722 const char *intel_output_name(int output);
 723 bool intel_has_pending_fb_unpin(struct drm_device *dev);
 724 int intel_pch_rawclk(struct drm_device *dev);
 725 int valleyview_cur_cdclk(struct drm_i915_private *dev_priv);
 726 void intel_mark_busy(struct drm_device *dev);
 727 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
 728                              struct intel_engine_cs *ring);
 729 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
 730                                     unsigned frontbuffer_bits);
 731 void intel_frontbuffer_flip_complete(struct drm_device *dev,
 732                                      unsigned frontbuffer_bits);
 733 void intel_frontbuffer_flush(struct drm_device *dev,
 734                              unsigned frontbuffer_bits);
 735 /**
 736  * intel_frontbuffer_flip - prepare frontbuffer flip
 737  * @dev: DRM device
 738  * @frontbuffer_bits: frontbuffer plane tracking bits
 739  *
 740  * This function gets called after scheduling a flip on @obj. This is for
 741  * synchronous plane updates which will happen on the next vblank and which will
 742  * not get delayed by pending gpu rendering.
 743  *
 744  * Can be called without any locks held.
 745  */
 746 static inline
 747 void intel_frontbuffer_flip(struct drm_device *dev,
 748                             unsigned frontbuffer_bits)
 749 {
 750         intel_frontbuffer_flush(dev, frontbuffer_bits);
 751 }
 752
 753 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire);
 754 void intel_mark_idle(struct drm_device *dev);
 755 void intel_crtc_restore_mode(struct drm_crtc *crtc);
 756 void intel_crtc_update_dpms(struct drm_crtc *crtc);
 757 void intel_encoder_destroy(struct drm_encoder *encoder);
 758 void intel_connector_dpms(struct drm_connector *, int mode);
 759 bool intel_connector_get_hw_state(struct intel_connector *connector);
 760 void intel_modeset_check_state(struct drm_device *dev);
 761 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 762                                 struct intel_digital_port *port);
 763 void intel_connector_attach_encoder(struct intel_connector *connector,
 764                                     struct intel_encoder *encoder);
 765 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
 766 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 767                                              struct drm_crtc *crtc);
 768 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
 769 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 770                                 struct drm_file *file_priv);
 771 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
 772                                              enum pipe pipe);
 773 void intel_wait_for_vblank(struct drm_device *dev, int pipe);
 774 void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
 775 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
 776 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
 777                          struct intel_digital_port *dport);
 778 bool intel_get_load_detect_pipe(struct drm_connector *connector,
 779                                 struct drm_display_mode *mode,
 780                                 struct intel_load_detect_pipe *old,
 781                                 struct drm_modeset_acquire_ctx *ctx);
 782 void intel_release_load_detect_pipe(struct drm_connector *connector,
 783                                     struct intel_load_detect_pipe *old,
 784                                     struct drm_modeset_acquire_ctx *ctx);
 785 int intel_pin_and_fence_fb_obj(struct drm_device *dev,
 786                                struct drm_i915_gem_object *obj,
 787                                struct intel_engine_cs *pipelined);
 788 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj);
 789 struct drm_framebuffer *
 790 __intel_framebuffer_create(struct drm_device *dev,
 791                            struct drm_mode_fb_cmd2 *mode_cmd,
 792                            struct drm_i915_gem_object *obj);
 793 void intel_prepare_page_flip(struct drm_device *dev, int plane);
 794 void intel_finish_page_flip(struct drm_device *dev, int pipe);
 795 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
 796 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
 797 void assert_shared_dpll(struct drm_i915_private *dev_priv,
 798                         struct intel_shared_dpll *pll,
 799                         bool state);
 800 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
 801 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
 802 void assert_pll(struct drm_i915_private *dev_priv,
 803                 enum pipe pipe, bool state);
 804 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
 805 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
 806 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
 807                        enum pipe pipe, bool state);
 808 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
 809 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
 810 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
 811 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
 812 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
 813 void intel_write_eld(struct drm_encoder *encoder,
 814                      struct drm_display_mode *mode);
 815 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
 816                                              unsigned int tiling_mode,
 817                                              unsigned int bpp,
 818                                              unsigned int pitch);
 819 void intel_display_handle_reset(struct drm_device *dev);
 820 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
 821 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
 822 void intel_dp_get_m_n(struct intel_crtc *crtc,
 823                       struct intel_crtc_config *pipe_config);
 824 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
 825 void
 826 ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
 827                                 int dotclock);
 828 bool intel_crtc_active(struct drm_crtc *crtc);
 829 void hsw_enable_ips(struct intel_crtc *crtc);
 830 void hsw_disable_ips(struct intel_crtc *crtc);
 831 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
 832 enum intel_display_power_domain
 833 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
 834 int valleyview_get_vco(struct drm_i915_private *dev_priv);
 835 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
 836                                  struct intel_crtc_config *pipe_config);
 837 int intel_format_to_fourcc(int format);
 838 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
 839
 840
 841 /* intel_dp.c */
 842 void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
 843 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 844                              struct intel_connector *intel_connector);
 845 void intel_dp_start_link_train(struct intel_dp *intel_dp);
 846 void intel_dp_complete_link_train(struct intel_dp *intel_dp);
 847 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
 848 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
 849 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 850 void intel_dp_check_link_status(struct intel_dp *intel_dp);
 851 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
 852 bool intel_dp_compute_config(struct intel_encoder *encoder,
 853                              struct intel_crtc_config *pipe_config);
 854 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
 855 void intel_edp_backlight_on(struct intel_dp *intel_dp);
 856 void intel_edp_backlight_off(struct intel_dp *intel_dp);
 857 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
 858 void intel_edp_panel_on(struct intel_dp *intel_dp);
 859 void intel_edp_panel_off(struct intel_dp *intel_dp);
 860 void intel_edp_psr_enable(struct intel_dp *intel_dp);
 861 void intel_edp_psr_disable(struct intel_dp *intel_dp);
 862 void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate);
 863 void intel_edp_psr_exit(struct drm_device *dev);
 864 void intel_edp_psr_init(struct drm_device *dev);
 865
 866
 867 /* intel_dsi.c */
 868 void intel_dsi_init(struct drm_device *dev);
 869
 870
 871 /* intel_dvo.c */
 872 void intel_dvo_init(struct drm_device *dev);
 873
 874
 875 /* legacy fbdev emulation in intel_fbdev.c */
 876 #ifdef CONFIG_DRM_I915_FBDEV
 877 extern int intel_fbdev_init(struct drm_device *dev);
 878 extern void intel_fbdev_initial_config(struct drm_device *dev);
 879 extern void intel_fbdev_fini(struct drm_device *dev);
 880 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
 881 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
 882 extern void intel_fbdev_restore_mode(struct drm_device *dev);
 883 #else
 884 static inline int intel_fbdev_init(struct drm_device *dev)
 885 {
 886         return 0;
 887 }
 888
 889 static inline void intel_fbdev_initial_config(struct drm_device *dev)
 890 {
 891 }
 892
 893 static inline void intel_fbdev_fini(struct drm_device *dev)
 894 {
 895 }
 896
 897 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state)
 898 {
 899 }
 900
 901 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
 902 {
 903 }
 904 #endif
 905
 906 /* intel_hdmi.c */
 907 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
 908 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 909                                struct intel_connector *intel_connector);
 910 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
 911 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
 912                                struct intel_crtc_config *pipe_config);
 913
 914
 915 /* intel_lvds.c */
 916 void intel_lvds_init(struct drm_device *dev);
 917 bool intel_is_dual_link_lvds(struct drm_device *dev);
 918
 919
 920 /* intel_modes.c */
 921 int intel_connector_update_modes(struct drm_connector *connector,
 922                                  struct edid *edid);
 923 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 924 void intel_attach_force_audio_property(struct drm_connector *connector);
 925 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 926
 927
 928 /* intel_overlay.c */
 929 void intel_setup_overlay(struct drm_device *dev);
 930 void intel_cleanup_overlay(struct drm_device *dev);
 931 int intel_overlay_switch_off(struct intel_overlay *overlay);
 932 int intel_overlay_put_image(struct drm_device *dev, void *data,
 933                             struct drm_file *file_priv);
 934 int intel_overlay_attrs(struct drm_device *dev, void *data,
 935                         struct drm_file *file_priv);
 936
 937
 938 /* intel_panel.c */
 939 int intel_panel_init(struct intel_panel *panel,
 940                      struct drm_display_mode *fixed_mode,
 941                      struct drm_display_mode *downclock_mode);
 942 void intel_panel_fini(struct intel_panel *panel);
 943 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
 944                             struct drm_display_mode *adjusted_mode);
 945 void intel_pch_panel_fitting(struct intel_crtc *crtc,
 946                              struct intel_crtc_config *pipe_config,
 947                              int fitting_mode);
 948 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
 949                               struct intel_crtc_config *pipe_config,
 950                               int fitting_mode);
 951 void intel_panel_set_backlight(struct intel_connector *connector, u32 level,
 952                                u32 max);
 953 int intel_panel_setup_backlight(struct drm_connector *connector);
 954 void intel_panel_enable_backlight(struct intel_connector *connector);
 955 void intel_panel_disable_backlight(struct intel_connector *connector);
 956 void intel_panel_destroy_backlight(struct drm_connector *connector);
 957 void intel_panel_init_backlight_funcs(struct drm_device *dev);
 958 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
 959 extern struct drm_display_mode *intel_find_panel_downclock(
 960                                 struct drm_device *dev,
 961                                 struct drm_display_mode *fixed_mode,
 962                                 struct drm_connector *connector);
 963
 964 /* intel_pm.c */
 965 void intel_init_clock_gating(struct drm_device *dev);
 966 void intel_suspend_hw(struct drm_device *dev);
 967 int ilk_wm_max_level(const struct drm_device *dev);
 968 void intel_update_watermarks(struct drm_crtc *crtc);
 969 void intel_update_sprite_watermarks(struct drm_plane *plane,
 970                                     struct drm_crtc *crtc,
 971                                     uint32_t sprite_width, int pixel_size,
 972                                     bool enabled, bool scaled);
 973 void intel_init_pm(struct drm_device *dev);
 974 void intel_pm_setup(struct drm_device *dev);
 975 bool intel_fbc_enabled(struct drm_device *dev);
 976 void intel_update_fbc(struct drm_device *dev);
 977 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
 978 void intel_gpu_ips_teardown(void);
 979 int intel_power_domains_init(struct drm_i915_private *);
 980 void intel_power_domains_remove(struct drm_i915_private *);
 981 bool intel_display_power_enabled(struct drm_i915_private *dev_priv,
 982                                  enum intel_display_power_domain domain);
 983 bool intel_display_power_enabled_unlocked(struct drm_i915_private *dev_priv,
 984                                           enum intel_display_power_domain domain);
 985 void intel_display_power_get(struct drm_i915_private *dev_priv,
 986                              enum intel_display_power_domain domain);
 987 void intel_display_power_put(struct drm_i915_private *dev_priv,
 988                              enum intel_display_power_domain domain);
 989 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
 990 void intel_init_gt_powersave(struct drm_device *dev);
 991 void intel_cleanup_gt_powersave(struct drm_device *dev);
 992 void intel_enable_gt_powersave(struct drm_device *dev);
 993 void intel_disable_gt_powersave(struct drm_device *dev);
 994 void intel_suspend_gt_powersave(struct drm_device *dev);
 995 void intel_reset_gt_powersave(struct drm_device *dev);
 996 void ironlake_teardown_rc6(struct drm_device *dev);
 997 void gen6_update_ring_freq(struct drm_device *dev);
 998 void gen6_rps_idle(struct drm_i915_private *dev_priv);
 999 void gen6_rps_boost(struct drm_i915_private *dev_priv);
1000 void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
1001 void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
1002 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1003 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1004 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1005 void intel_init_runtime_pm(struct drm_i915_private *dev_priv);
1006 void intel_fini_runtime_pm(struct drm_i915_private *dev_priv);
1007 void ilk_wm_get_hw_state(struct drm_device *dev);
1008 void __vlv_set_power_well(struct drm_i915_private *dev_priv,
1009                           enum punit_power_well power_well_id, bool enable);
1010
1011 /* intel_sdvo.c */
1012 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1013
1014
1015 /* intel_sprite.c */
1016 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1017 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1018                                enum plane plane);
1019 void intel_plane_restore(struct drm_plane *plane);
1020 void intel_plane_disable(struct drm_plane *plane);
1021 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1022                               struct drm_file *file_priv);
1023 int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
1024                               struct drm_file *file_priv);
1025
1026
1027 /* intel_tv.c */
1028 void intel_tv_init(struct drm_device *dev);
1029
1030 #endif /* __INTEL_DRV_H__ */