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         /* PORT_CLK_SEL for DDI ports. */
 311         uint32_t ddi_pll_sel;
 312
 313         /* Actual register state of the dpll, for shared dpll cross-checking. */
 314         struct intel_dpll_hw_state dpll_hw_state;
 315
 316         int pipe_bpp;
 317         struct intel_link_m_n dp_m_n;
 318
 319         /* m2_n2 for eDP downclock */
 320         struct intel_link_m_n dp_m2_n2;
 321
 322         /*
 323          * Frequence the dpll for the port should run at. Differs from the
 324          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 325          * already multiplied by pixel_multiplier.
 326          */
 327         int port_clock;
 328
 329         /* Used by SDVO (and if we ever fix it, HDMI). */
 330         unsigned pixel_multiplier;
 331
 332         /* Panel fitter controls for gen2-gen4 + VLV */
 333         struct {
 334                 u32 control;
 335                 u32 pgm_ratios;
 336                 u32 lvds_border_bits;
 337         } gmch_pfit;
 338
 339         /* Panel fitter placement and size for Ironlake+ */
 340         struct {
 341                 u32 pos;
 342                 u32 size;
 343                 bool enabled;
 344                 bool force_thru;
 345         } pch_pfit;
 346
 347         /* FDI configuration, only valid if has_pch_encoder is set. */
 348         int fdi_lanes;
 349         struct intel_link_m_n fdi_m_n;
 350
 351         bool ips_enabled;
 352
 353         bool double_wide;
 354 };
 355
 356 struct intel_pipe_wm {
 357         struct intel_wm_level wm[5];
 358         uint32_t linetime;
 359         bool fbc_wm_enabled;
 360         bool pipe_enabled;
 361         bool sprites_enabled;
 362         bool sprites_scaled;
 363 };
 364
 365 struct intel_mmio_flip {
 366         u32 seqno;
 367         u32 ring_id;
 368 };
 369
 370 struct intel_crtc {
 371         struct drm_crtc base;
 372         enum pipe pipe;
 373         enum plane plane;
 374         u8 lut_r[256], lut_g[256], lut_b[256];
 375         /*
 376          * Whether the crtc and the connected output pipeline is active. Implies
 377          * that crtc->enabled is set, i.e. the current mode configuration has
 378          * some outputs connected to this crtc.
 379          */
 380         bool active;
 381         unsigned long enabled_power_domains;
 382         bool primary_enabled; /* is the primary plane (partially) visible? */
 383         bool lowfreq_avail;
 384         struct intel_overlay *overlay;
 385         struct intel_unpin_work *unpin_work;
 386
 387         atomic_t unpin_work_count;
 388
 389         /* Display surface base address adjustement for pageflips. Note that on
 390          * gen4+ this only adjusts up to a tile, offsets within a tile are
 391          * handled in the hw itself (with the TILEOFF register). */
 392         unsigned long dspaddr_offset;
 393
 394         struct drm_i915_gem_object *cursor_bo;
 395         uint32_t cursor_addr;
 396         int16_t cursor_width, cursor_height;
 397         uint32_t cursor_cntl;
 398         uint32_t cursor_base;
 399
 400         struct intel_plane_config plane_config;
 401         struct intel_crtc_config config;
 402         struct intel_crtc_config *new_config;
 403         bool new_enabled;
 404
 405         /* reset counter value when the last flip was submitted */
 406         unsigned int reset_counter;
 407
 408         /* Access to these should be protected by dev_priv->irq_lock. */
 409         bool cpu_fifo_underrun_disabled;
 410         bool pch_fifo_underrun_disabled;
 411
 412         /* per-pipe watermark state */
 413         struct {
 414                 /* watermarks currently being used  */
 415                 struct intel_pipe_wm active;
 416         } wm;
 417
 418         wait_queue_head_t vbl_wait;
 419
 420         int scanline_offset;
 421         struct intel_mmio_flip mmio_flip;
 422 };
 423
 424 struct intel_plane_wm_parameters {
 425         uint32_t horiz_pixels;
 426         uint8_t bytes_per_pixel;
 427         bool enabled;
 428         bool scaled;
 429 };
 430
 431 struct intel_plane {
 432         struct drm_plane base;
 433         int plane;
 434         enum pipe pipe;
 435         struct drm_i915_gem_object *obj;
 436         bool can_scale;
 437         int max_downscale;
 438         int crtc_x, crtc_y;
 439         unsigned int crtc_w, crtc_h;
 440         uint32_t src_x, src_y;
 441         uint32_t src_w, src_h;
 442
 443         /* Since we need to change the watermarks before/after
 444          * enabling/disabling the planes, we need to store the parameters here
 445          * as the other pieces of the struct may not reflect the values we want
 446          * for the watermark calculations. Currently only Haswell uses this.
 447          */
 448         struct intel_plane_wm_parameters wm;
 449
 450         void (*update_plane)(struct drm_plane *plane,
 451                              struct drm_crtc *crtc,
 452                              struct drm_framebuffer *fb,
 453                              struct drm_i915_gem_object *obj,
 454                              int crtc_x, int crtc_y,
 455                              unsigned int crtc_w, unsigned int crtc_h,
 456                              uint32_t x, uint32_t y,
 457                              uint32_t src_w, uint32_t src_h);
 458         void (*disable_plane)(struct drm_plane *plane,
 459                               struct drm_crtc *crtc);
 460         int (*update_colorkey)(struct drm_plane *plane,
 461                                struct drm_intel_sprite_colorkey *key);
 462         void (*get_colorkey)(struct drm_plane *plane,
 463                              struct drm_intel_sprite_colorkey *key);
 464 };
 465
 466 struct intel_watermark_params {
 467         unsigned long fifo_size;
 468         unsigned long max_wm;
 469         unsigned long default_wm;
 470         unsigned long guard_size;
 471         unsigned long cacheline_size;
 472 };
 473
 474 struct cxsr_latency {
 475         int is_desktop;
 476         int is_ddr3;
 477         unsigned long fsb_freq;
 478         unsigned long mem_freq;
 479         unsigned long display_sr;
 480         unsigned long display_hpll_disable;
 481         unsigned long cursor_sr;
 482         unsigned long cursor_hpll_disable;
 483 };
 484
 485 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 486 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 487 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 488 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 489 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 490 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 491
 492 struct intel_hdmi {
 493         u32 hdmi_reg;
 494         int ddc_bus;
 495         uint32_t color_range;
 496         bool color_range_auto;
 497         bool has_hdmi_sink;
 498         bool has_audio;
 499         enum hdmi_force_audio force_audio;
 500         bool rgb_quant_range_selectable;
 501         void (*write_infoframe)(struct drm_encoder *encoder,
 502                                 enum hdmi_infoframe_type type,
 503                                 const void *frame, ssize_t len);
 504         void (*set_infoframes)(struct drm_encoder *encoder,
 505                                bool enable,
 506                                struct drm_display_mode *adjusted_mode);
 507 };
 508
 509 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 510
 511 /**
 512  * HIGH_RR is the highest eDP panel refresh rate read from EDID
 513  * LOW_RR is the lowest eDP panel refresh rate found from EDID
 514  * parsing for same resolution.
 515  */
 516 enum edp_drrs_refresh_rate_type {
 517         DRRS_HIGH_RR,
 518         DRRS_LOW_RR,
 519         DRRS_MAX_RR, /* RR count */
 520 };
 521
 522 struct intel_dp {
 523         uint32_t output_reg;
 524         uint32_t aux_ch_ctl_reg;
 525         uint32_t DP;
 526         bool has_audio;
 527         enum hdmi_force_audio force_audio;
 528         uint32_t color_range;
 529         bool color_range_auto;
 530         uint8_t link_bw;
 531         uint8_t lane_count;
 532         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 533         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
 534         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 535         struct drm_dp_aux aux;
 536         uint8_t train_set[4];
 537         int panel_power_up_delay;
 538         int panel_power_down_delay;
 539         int panel_power_cycle_delay;
 540         int backlight_on_delay;
 541         int backlight_off_delay;
 542         struct delayed_work panel_vdd_work;
 543         bool want_panel_vdd;
 544         unsigned long last_power_cycle;
 545         unsigned long last_power_on;
 546         unsigned long last_backlight_off;
 547         bool use_tps3;
 548         struct intel_connector *attached_connector;
 549
 550         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
 551         /*
 552          * This function returns the value we have to program the AUX_CTL
 553          * register with to kick off an AUX transaction.
 554          */
 555         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
 556                                      bool has_aux_irq,
 557                                      int send_bytes,
 558                                      uint32_t aux_clock_divider);
 559         struct {
 560                 enum drrs_support_type type;
 561                 enum edp_drrs_refresh_rate_type refresh_rate_type;
 562                 struct mutex mutex;
 563         } drrs_state;
 564
 565 };
 566
 567 struct intel_digital_port {
 568         struct intel_encoder base;
 569         enum port port;
 570         u32 saved_port_bits;
 571         struct intel_dp dp;
 572         struct intel_hdmi hdmi;
 573         bool (*hpd_pulse)(struct intel_digital_port *, bool);
 574 };
 575
 576 static inline int
 577 vlv_dport_to_channel(struct intel_digital_port *dport)
 578 {
 579         switch (dport->port) {
 580         case PORT_B:
 581         case PORT_D:
 582                 return DPIO_CH0;
 583         case PORT_C:
 584                 return DPIO_CH1;
 585         default:
 586                 BUG();
 587         }
 588 }
 589
 590 static inline int
 591 vlv_pipe_to_channel(enum pipe pipe)
 592 {
 593         switch (pipe) {
 594         case PIPE_A:
 595         case PIPE_C:
 596                 return DPIO_CH0;
 597         case PIPE_B:
 598                 return DPIO_CH1;
 599         default:
 600                 BUG();
 601         }
 602 }
 603
 604 static inline struct drm_crtc *
 605 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 606 {
 607         struct drm_i915_private *dev_priv = dev->dev_private;
 608         return dev_priv->pipe_to_crtc_mapping[pipe];
 609 }
 610
 611 static inline struct drm_crtc *
 612 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 613 {
 614         struct drm_i915_private *dev_priv = dev->dev_private;
 615         return dev_priv->plane_to_crtc_mapping[plane];
 616 }
 617
 618 struct intel_unpin_work {
 619         struct work_struct work;
 620         struct drm_crtc *crtc;
 621         struct drm_i915_gem_object *old_fb_obj;
 622         struct drm_i915_gem_object *pending_flip_obj;
 623         struct drm_pending_vblank_event *event;
 624         atomic_t pending;
 625 #define INTEL_FLIP_INACTIVE     0
 626 #define INTEL_FLIP_PENDING      1
 627 #define INTEL_FLIP_COMPLETE     2
 628         u32 flip_count;
 629         u32 gtt_offset;
 630         bool enable_stall_check;
 631 };
 632
 633 struct intel_set_config {
 634         struct drm_encoder **save_connector_encoders;
 635         struct drm_crtc **save_encoder_crtcs;
 636         bool *save_crtc_enabled;
 637
 638         bool fb_changed;
 639         bool mode_changed;
 640 };
 641
 642 struct intel_load_detect_pipe {
 643         struct drm_framebuffer *release_fb;
 644         bool load_detect_temp;
 645         int dpms_mode;
 646 };
 647
 648 static inline struct intel_encoder *
 649 intel_attached_encoder(struct drm_connector *connector)
 650 {
 651         return to_intel_connector(connector)->encoder;
 652 }
 653
 654 static inline struct intel_digital_port *
 655 enc_to_dig_port(struct drm_encoder *encoder)
 656 {
 657         return container_of(encoder, struct intel_digital_port, base.base);
 658 }
 659
 660 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 661 {
 662         return &enc_to_dig_port(encoder)->dp;
 663 }
 664
 665 static inline struct intel_digital_port *
 666 dp_to_dig_port(struct intel_dp *intel_dp)
 667 {
 668         return container_of(intel_dp, struct intel_digital_port, dp);
 669 }
 670
 671 static inline struct intel_digital_port *
 672 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 673 {
 674         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 675 }
 676
 677
 678 /* i915_irq.c */
 679 bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 680                                            enum pipe pipe, bool enable);
 681 bool intel_set_pch_fifo_underrun_reporting(struct drm_device *dev,
 682                                            enum transcoder pch_transcoder,
 683                                            bool enable);
 684 void ilk_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 685 void ilk_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 686 void snb_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 687 void snb_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 688 void bdw_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 689 void bdw_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
 690 void intel_runtime_pm_disable_interrupts(struct drm_device *dev);
 691 void intel_runtime_pm_restore_interrupts(struct drm_device *dev);
 692 int intel_get_crtc_scanline(struct intel_crtc *crtc);
 693 void i9xx_check_fifo_underruns(struct drm_device *dev);
 694
 695
 696 /* intel_crt.c */
 697 void intel_crt_init(struct drm_device *dev);
 698
 699
 700 /* intel_ddi.c */
 701 void intel_prepare_ddi(struct drm_device *dev);
 702 void hsw_fdi_link_train(struct drm_crtc *crtc);
 703 void intel_ddi_init(struct drm_device *dev, enum port port);
 704 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
 705 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
 706 int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv);
 707 void intel_ddi_pll_init(struct drm_device *dev);
 708 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 709 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
 710                                        enum transcoder cpu_transcoder);
 711 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
 712 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
 713 bool intel_ddi_pll_select(struct intel_crtc *crtc);
 714 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 715 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
 716 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 717 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 718 void intel_ddi_get_config(struct intel_encoder *encoder,
 719                           struct intel_crtc_config *pipe_config);
 720
 721
 722 /* intel_display.c */
 723 const char *intel_output_name(int output);
 724 bool intel_has_pending_fb_unpin(struct drm_device *dev);
 725 int intel_pch_rawclk(struct drm_device *dev);
 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
 797 /* shared dpll functions */
 798 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
 799 void assert_shared_dpll(struct drm_i915_private *dev_priv,
 800                         struct intel_shared_dpll *pll,
 801                         bool state);
 802 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
 803 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
 804 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc);
 805 void intel_put_shared_dpll(struct intel_crtc *crtc);
 806
 807 /* modesetting asserts */
 808 void assert_pll(struct drm_i915_private *dev_priv,
 809                 enum pipe pipe, bool state);
 810 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
 811 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
 812 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
 813                        enum pipe pipe, bool state);
 814 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
 815 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
 816 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
 817 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
 818 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
 819 void intel_write_eld(struct drm_encoder *encoder,
 820                      struct drm_display_mode *mode);
 821 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
 822                                              unsigned int tiling_mode,
 823                                              unsigned int bpp,
 824                                              unsigned int pitch);
 825 void intel_display_handle_reset(struct drm_device *dev);
 826 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
 827 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
 828 void intel_dp_get_m_n(struct intel_crtc *crtc,
 829                       struct intel_crtc_config *pipe_config);
 830 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
 831 void
 832 ironlake_check_encoder_dotclock(const struct intel_crtc_config *pipe_config,
 833                                 int dotclock);
 834 bool intel_crtc_active(struct drm_crtc *crtc);
 835 void hsw_enable_ips(struct intel_crtc *crtc);
 836 void hsw_disable_ips(struct intel_crtc *crtc);
 837 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
 838 enum intel_display_power_domain
 839 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
 840 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
 841                                  struct intel_crtc_config *pipe_config);
 842 int intel_format_to_fourcc(int format);
 843 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
 844
 845
 846 /* intel_dp.c */
 847 void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
 848 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 849                              struct intel_connector *intel_connector);
 850 void intel_dp_start_link_train(struct intel_dp *intel_dp);
 851 void intel_dp_complete_link_train(struct intel_dp *intel_dp);
 852 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
 853 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
 854 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 855 void intel_dp_check_link_status(struct intel_dp *intel_dp);
 856 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
 857 bool intel_dp_compute_config(struct intel_encoder *encoder,
 858                              struct intel_crtc_config *pipe_config);
 859 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
 860 bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
 861                         bool long_hpd);
 862 void intel_edp_backlight_on(struct intel_dp *intel_dp);
 863 void intel_edp_backlight_off(struct intel_dp *intel_dp);
 864 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
 865 void intel_edp_panel_on(struct intel_dp *intel_dp);
 866 void intel_edp_panel_off(struct intel_dp *intel_dp);
 867 void intel_edp_psr_enable(struct intel_dp *intel_dp);
 868 void intel_edp_psr_disable(struct intel_dp *intel_dp);
 869 void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate);
 870 void intel_edp_psr_exit(struct drm_device *dev);
 871 void intel_edp_psr_init(struct drm_device *dev);
 872
 873 /* intel_dsi.c */
 874 void intel_dsi_init(struct drm_device *dev);
 875
 876
 877 /* intel_dvo.c */
 878 void intel_dvo_init(struct drm_device *dev);
 879
 880
 881 /* legacy fbdev emulation in intel_fbdev.c */
 882 #ifdef CONFIG_DRM_I915_FBDEV
 883 extern int intel_fbdev_init(struct drm_device *dev);
 884 extern void intel_fbdev_initial_config(struct drm_device *dev);
 885 extern void intel_fbdev_fini(struct drm_device *dev);
 886 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
 887 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
 888 extern void intel_fbdev_restore_mode(struct drm_device *dev);
 889 #else
 890 static inline int intel_fbdev_init(struct drm_device *dev)
 891 {
 892         return 0;
 893 }
 894
 895 static inline void intel_fbdev_initial_config(struct drm_device *dev)
 896 {
 897 }
 898
 899 static inline void intel_fbdev_fini(struct drm_device *dev)
 900 {
 901 }
 902
 903 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state)
 904 {
 905 }
 906
 907 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
 908 {
 909 }
 910 #endif
 911
 912 /* intel_hdmi.c */
 913 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
 914 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 915                                struct intel_connector *intel_connector);
 916 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
 917 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
 918                                struct intel_crtc_config *pipe_config);
 919
 920
 921 /* intel_lvds.c */
 922 void intel_lvds_init(struct drm_device *dev);
 923 bool intel_is_dual_link_lvds(struct drm_device *dev);
 924
 925
 926 /* intel_modes.c */
 927 int intel_connector_update_modes(struct drm_connector *connector,
 928                                  struct edid *edid);
 929 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 930 void intel_attach_force_audio_property(struct drm_connector *connector);
 931 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 932
 933
 934 /* intel_overlay.c */
 935 void intel_setup_overlay(struct drm_device *dev);
 936 void intel_cleanup_overlay(struct drm_device *dev);
 937 int intel_overlay_switch_off(struct intel_overlay *overlay);
 938 int intel_overlay_put_image(struct drm_device *dev, void *data,
 939                             struct drm_file *file_priv);
 940 int intel_overlay_attrs(struct drm_device *dev, void *data,
 941                         struct drm_file *file_priv);
 942
 943
 944 /* intel_panel.c */
 945 int intel_panel_init(struct intel_panel *panel,
 946                      struct drm_display_mode *fixed_mode,
 947                      struct drm_display_mode *downclock_mode);
 948 void intel_panel_fini(struct intel_panel *panel);
 949 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
 950                             struct drm_display_mode *adjusted_mode);
 951 void intel_pch_panel_fitting(struct intel_crtc *crtc,
 952                              struct intel_crtc_config *pipe_config,
 953                              int fitting_mode);
 954 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
 955                               struct intel_crtc_config *pipe_config,
 956                               int fitting_mode);
 957 void intel_panel_set_backlight(struct intel_connector *connector, u32 level,
 958                                u32 max);
 959 int intel_panel_setup_backlight(struct drm_connector *connector);
 960 void intel_panel_enable_backlight(struct intel_connector *connector);
 961 void intel_panel_disable_backlight(struct intel_connector *connector);
 962 void intel_panel_destroy_backlight(struct drm_connector *connector);
 963 void intel_panel_init_backlight_funcs(struct drm_device *dev);
 964 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
 965 extern struct drm_display_mode *intel_find_panel_downclock(
 966                                 struct drm_device *dev,
 967                                 struct drm_display_mode *fixed_mode,
 968                                 struct drm_connector *connector);
 969
 970 /* intel_pm.c */
 971 void intel_init_clock_gating(struct drm_device *dev);
 972 void intel_suspend_hw(struct drm_device *dev);
 973 int ilk_wm_max_level(const struct drm_device *dev);
 974 void intel_update_watermarks(struct drm_crtc *crtc);
 975 void intel_update_sprite_watermarks(struct drm_plane *plane,
 976                                     struct drm_crtc *crtc,
 977                                     uint32_t sprite_width, int pixel_size,
 978                                     bool enabled, bool scaled);
 979 void intel_init_pm(struct drm_device *dev);
 980 void intel_pm_setup(struct drm_device *dev);
 981 bool intel_fbc_enabled(struct drm_device *dev);
 982 void intel_update_fbc(struct drm_device *dev);
 983 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
 984 void intel_gpu_ips_teardown(void);
 985 int intel_power_domains_init(struct drm_i915_private *);
 986 void intel_power_domains_remove(struct drm_i915_private *);
 987 bool intel_display_power_enabled(struct drm_i915_private *dev_priv,
 988                                  enum intel_display_power_domain domain);
 989 bool intel_display_power_enabled_unlocked(struct drm_i915_private *dev_priv,
 990                                           enum intel_display_power_domain domain);
 991 void intel_display_power_get(struct drm_i915_private *dev_priv,
 992                              enum intel_display_power_domain domain);
 993 void intel_display_power_put(struct drm_i915_private *dev_priv,
 994                              enum intel_display_power_domain domain);
 995 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
 996 void intel_init_gt_powersave(struct drm_device *dev);
 997 void intel_cleanup_gt_powersave(struct drm_device *dev);
 998 void intel_enable_gt_powersave(struct drm_device *dev);
 999 void intel_disable_gt_powersave(struct drm_device *dev);
1000 void intel_suspend_gt_powersave(struct drm_device *dev);
1001 void intel_reset_gt_powersave(struct drm_device *dev);
1002 void ironlake_teardown_rc6(struct drm_device *dev);
1003 void gen6_update_ring_freq(struct drm_device *dev);
1004 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1005 void gen6_rps_boost(struct drm_i915_private *dev_priv);
1006 void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
1007 void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
1008 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1009 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1010 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1011 void intel_init_runtime_pm(struct drm_i915_private *dev_priv);
1012 void intel_fini_runtime_pm(struct drm_i915_private *dev_priv);
1013 void ilk_wm_get_hw_state(struct drm_device *dev);
1014
1015
1016 /* intel_sdvo.c */
1017 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1018
1019
1020 /* intel_sprite.c */
1021 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1022 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1023                                enum plane plane);
1024 void intel_plane_restore(struct drm_plane *plane);
1025 void intel_plane_disable(struct drm_plane *plane);
1026 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1027                               struct drm_file *file_priv);
1028 int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
1029                               struct drm_file *file_priv);
1030
1031
1032 /* intel_tv.c */
1033 void intel_tv_init(struct drm_device *dev);
1034
1035 #endif /* __INTEL_DRV_H__ */