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 <drm/i915_drm.h>
  30 #include "i915_drv.h"
  31 #include <drm/drm_crtc.h>
  32 #include <drm/drm_crtc_helper.h>
  33 #include <drm/drm_fb_helper.h>
  34 #include <drm/drm_dp_helper.h>
  35
  36 /**
  37  * _wait_for - magic (register) wait macro
  38  *
  39  * Does the right thing for modeset paths when run under kdgb or similar atomic
  40  * contexts. Note that it's important that we check the condition again after
  41  * having timed out, since the timeout could be due to preemption or similar and
  42  * we've never had a chance to check the condition before the timeout.
  43  */
  44 #define _wait_for(COND, MS, W) ({ \
  45         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
  46         int ret__ = 0;                                                  \
  47         while (!(COND)) {                                               \
  48                 if (time_after(jiffies, timeout__)) {                   \
  49                         if (!(COND))                                    \
  50                                 ret__ = -ETIMEDOUT;                     \
  51                         break;                                          \
  52                 }                                                       \
  53                 if (W && drm_can_sleep())  {                            \
  54                         msleep(W);                                      \
  55                 } else {                                                \
  56                         cpu_relax();                                    \
  57                 }                                                       \
  58         }                                                               \
  59         ret__;                                                          \
  60 })
  61
  62 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
  63 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
  64 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
  65                                                DIV_ROUND_UP((US), 1000), 0)
  66
  67 #define KHz(x) (1000*x)
  68 #define MHz(x) KHz(1000*x)
  69
  70 /*
  71  * Display related stuff
  72  */
  73
  74 /* store information about an Ixxx DVO */
  75 /* The i830->i865 use multiple DVOs with multiple i2cs */
  76 /* the i915, i945 have a single sDVO i2c bus - which is different */
  77 #define MAX_OUTPUTS 6
  78 /* maximum connectors per crtcs in the mode set */
  79 #define INTELFB_CONN_LIMIT 4
  80
  81 #define INTEL_I2C_BUS_DVO 1
  82 #define INTEL_I2C_BUS_SDVO 2
  83
  84 /* these are outputs from the chip - integrated only
  85    external chips are via DVO or SDVO output */
  86 #define INTEL_OUTPUT_UNUSED 0
  87 #define INTEL_OUTPUT_ANALOG 1
  88 #define INTEL_OUTPUT_DVO 2
  89 #define INTEL_OUTPUT_SDVO 3
  90 #define INTEL_OUTPUT_LVDS 4
  91 #define INTEL_OUTPUT_TVOUT 5
  92 #define INTEL_OUTPUT_HDMI 6
  93 #define INTEL_OUTPUT_DISPLAYPORT 7
  94 #define INTEL_OUTPUT_EDP 8
  95 #define INTEL_OUTPUT_UNKNOWN 9
  96
  97 #define INTEL_DVO_CHIP_NONE 0
  98 #define INTEL_DVO_CHIP_LVDS 1
  99 #define INTEL_DVO_CHIP_TMDS 2
 100 #define INTEL_DVO_CHIP_TVOUT 4
 101
 102 struct intel_framebuffer {
 103         struct drm_framebuffer base;
 104         struct drm_i915_gem_object *obj;
 105 };
 106
 107 struct intel_fbdev {
 108         struct drm_fb_helper helper;
 109         struct intel_framebuffer ifb;
 110         struct list_head fbdev_list;
 111         struct drm_display_mode *our_mode;
 112 };
 113
 114 struct intel_encoder {
 115         struct drm_encoder base;
 116         /*
 117          * The new crtc this encoder will be driven from. Only differs from
 118          * base->crtc while a modeset is in progress.
 119          */
 120         struct intel_crtc *new_crtc;
 121
 122         int type;
 123         bool needs_tv_clock;
 124         /*
 125          * Intel hw has only one MUX where encoders could be clone, hence a
 126          * simple flag is enough to compute the possible_clones mask.
 127          */
 128         bool cloneable;
 129         bool connectors_active;
 130         void (*hot_plug)(struct intel_encoder *);
 131         bool (*compute_config)(struct intel_encoder *,
 132                                struct intel_crtc_config *);
 133         void (*pre_pll_enable)(struct intel_encoder *);
 134         void (*pre_enable)(struct intel_encoder *);
 135         void (*enable)(struct intel_encoder *);
 136         void (*mode_set)(struct intel_encoder *intel_encoder);
 137         void (*disable)(struct intel_encoder *);
 138         void (*post_disable)(struct intel_encoder *);
 139         /* Read out the current hw state of this connector, returning true if
 140          * the encoder is active. If the encoder is enabled it also set the pipe
 141          * it is connected to in the pipe parameter. */
 142         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 143         int crtc_mask;
 144         enum hpd_pin hpd_pin;
 145 };
 146
 147 struct intel_panel {
 148         struct drm_display_mode *fixed_mode;
 149         int fitting_mode;
 150 };
 151
 152 struct intel_connector {
 153         struct drm_connector base;
 154         /*
 155          * The fixed encoder this connector is connected to.
 156          */
 157         struct intel_encoder *encoder;
 158
 159         /*
 160          * The new encoder this connector will be driven. Only differs from
 161          * encoder while a modeset is in progress.
 162          */
 163         struct intel_encoder *new_encoder;
 164
 165         /* Reads out the current hw, returning true if the connector is enabled
 166          * and active (i.e. dpms ON state). */
 167         bool (*get_hw_state)(struct intel_connector *);
 168
 169         /* Panel info for eDP and LVDS */
 170         struct intel_panel panel;
 171
 172         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 173         struct edid *edid;
 174
 175         /* since POLL and HPD connectors may use the same HPD line keep the native
 176            state of connector->polled in case hotplug storm detection changes it */
 177         u8 polled;
 178 };
 179
 180 typedef struct dpll {
 181         /* given values */
 182         int n;
 183         int m1, m2;
 184         int p1, p2;
 185         /* derived values */
 186         int     dot;
 187         int     vco;
 188         int     m;
 189         int     p;
 190 } intel_clock_t;
 191
 192 struct intel_crtc_config {
 193         struct drm_display_mode requested_mode;
 194         struct drm_display_mode adjusted_mode;
 195         /* This flag must be set by the encoder's compute_config callback if it
 196          * changes the crtc timings in the mode to prevent the crtc fixup from
 197          * overwriting them.  Currently only lvds needs that. */
 198         bool timings_set;
 199         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 200          * between pch encoders and cpu encoders. */
 201         bool has_pch_encoder;
 202
 203         /* CPU Transcoder for the pipe. Currently this can only differ from the
 204          * pipe on Haswell (where we have a special eDP transcoder). */
 205         enum transcoder cpu_transcoder;
 206
 207         /*
 208          * Use reduced/limited/broadcast rbg range, compressing from the full
 209          * range fed into the crtcs.
 210          */
 211         bool limited_color_range;
 212
 213         /* DP has a bunch of special case unfortunately, so mark the pipe
 214          * accordingly. */
 215         bool has_dp_encoder;
 216         bool dither;
 217
 218         /* Controls for the clock computation, to override various stages. */
 219         bool clock_set;
 220
 221         /* Settings for the intel dpll used on pretty much everything but
 222          * haswell. */
 223         struct dpll dpll;
 224
 225         int pipe_bpp;
 226         struct intel_link_m_n dp_m_n;
 227         /**
 228          * This is currently used by DP and HDMI encoders since those can have a
 229          * target pixel clock != the port link clock (which is currently stored
 230          * in adjusted_mode->clock).
 231          */
 232         int pixel_target_clock;
 233         /* Used by SDVO (and if we ever fix it, HDMI). */
 234         unsigned pixel_multiplier;
 235 };
 236
 237 struct intel_crtc {
 238         struct drm_crtc base;
 239         enum pipe pipe;
 240         enum plane plane;
 241         u8 lut_r[256], lut_g[256], lut_b[256];
 242         /*
 243          * Whether the crtc and the connected output pipeline is active. Implies
 244          * that crtc->enabled is set, i.e. the current mode configuration has
 245          * some outputs connected to this crtc.
 246          */
 247         bool active;
 248         bool eld_vld;
 249         bool primary_disabled; /* is the crtc obscured by a plane? */
 250         bool lowfreq_avail;
 251         struct intel_overlay *overlay;
 252         struct intel_unpin_work *unpin_work;
 253         int fdi_lanes;
 254
 255         atomic_t unpin_work_count;
 256
 257         /* Display surface base address adjustement for pageflips. Note that on
 258          * gen4+ this only adjusts up to a tile, offsets within a tile are
 259          * handled in the hw itself (with the TILEOFF register). */
 260         unsigned long dspaddr_offset;
 261
 262         struct drm_i915_gem_object *cursor_bo;
 263         uint32_t cursor_addr;
 264         int16_t cursor_x, cursor_y;
 265         int16_t cursor_width, cursor_height;
 266         bool cursor_visible;
 267
 268         struct intel_crtc_config config;
 269
 270         /* We can share PLLs across outputs if the timings match */
 271         struct intel_pch_pll *pch_pll;
 272         uint32_t ddi_pll_sel;
 273
 274         /* reset counter value when the last flip was submitted */
 275         unsigned int reset_counter;
 276
 277         /* Access to these should be protected by dev_priv->irq_lock. */
 278         bool cpu_fifo_underrun_disabled;
 279         bool pch_fifo_underrun_disabled;
 280 };
 281
 282 struct intel_plane {
 283         struct drm_plane base;
 284         int plane;
 285         enum pipe pipe;
 286         struct drm_i915_gem_object *obj;
 287         bool can_scale;
 288         int max_downscale;
 289         u32 lut_r[1024], lut_g[1024], lut_b[1024];
 290         int crtc_x, crtc_y;
 291         unsigned int crtc_w, crtc_h;
 292         uint32_t src_x, src_y;
 293         uint32_t src_w, src_h;
 294         void (*update_plane)(struct drm_plane *plane,
 295                              struct drm_framebuffer *fb,
 296                              struct drm_i915_gem_object *obj,
 297                              int crtc_x, int crtc_y,
 298                              unsigned int crtc_w, unsigned int crtc_h,
 299                              uint32_t x, uint32_t y,
 300                              uint32_t src_w, uint32_t src_h);
 301         void (*disable_plane)(struct drm_plane *plane);
 302         int (*update_colorkey)(struct drm_plane *plane,
 303                                struct drm_intel_sprite_colorkey *key);
 304         void (*get_colorkey)(struct drm_plane *plane,
 305                              struct drm_intel_sprite_colorkey *key);
 306 };
 307
 308 struct intel_watermark_params {
 309         unsigned long fifo_size;
 310         unsigned long max_wm;
 311         unsigned long default_wm;
 312         unsigned long guard_size;
 313         unsigned long cacheline_size;
 314 };
 315
 316 struct cxsr_latency {
 317         int is_desktop;
 318         int is_ddr3;
 319         unsigned long fsb_freq;
 320         unsigned long mem_freq;
 321         unsigned long display_sr;
 322         unsigned long display_hpll_disable;
 323         unsigned long cursor_sr;
 324         unsigned long cursor_hpll_disable;
 325 };
 326
 327 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 328 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 329 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 330 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 331 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 332
 333 #define DIP_HEADER_SIZE 5
 334
 335 #define DIP_TYPE_AVI    0x82
 336 #define DIP_VERSION_AVI 0x2
 337 #define DIP_LEN_AVI     13
 338 #define DIP_AVI_PR_1    0
 339 #define DIP_AVI_PR_2    1
 340 #define DIP_AVI_RGB_QUANT_RANGE_DEFAULT (0 << 2)
 341 #define DIP_AVI_RGB_QUANT_RANGE_LIMITED (1 << 2)
 342 #define DIP_AVI_RGB_QUANT_RANGE_FULL    (2 << 2)
 343
 344 #define DIP_TYPE_SPD    0x83
 345 #define DIP_VERSION_SPD 0x1
 346 #define DIP_LEN_SPD     25
 347 #define DIP_SPD_UNKNOWN 0
 348 #define DIP_SPD_DSTB    0x1
 349 #define DIP_SPD_DVDP    0x2
 350 #define DIP_SPD_DVHS    0x3
 351 #define DIP_SPD_HDDVR   0x4
 352 #define DIP_SPD_DVC     0x5
 353 #define DIP_SPD_DSC     0x6
 354 #define DIP_SPD_VCD     0x7
 355 #define DIP_SPD_GAME    0x8
 356 #define DIP_SPD_PC      0x9
 357 #define DIP_SPD_BD      0xa
 358 #define DIP_SPD_SCD     0xb
 359
 360 struct dip_infoframe {
 361         uint8_t type;           /* HB0 */
 362         uint8_t ver;            /* HB1 */
 363         uint8_t len;            /* HB2 - body len, not including checksum */
 364         uint8_t ecc;            /* Header ECC */
 365         uint8_t checksum;       /* PB0 */
 366         union {
 367                 struct {
 368                         /* PB1 - Y 6:5, A 4:4, B 3:2, S 1:0 */
 369                         uint8_t Y_A_B_S;
 370                         /* PB2 - C 7:6, M 5:4, R 3:0 */
 371                         uint8_t C_M_R;
 372                         /* PB3 - ITC 7:7, EC 6:4, Q 3:2, SC 1:0 */
 373                         uint8_t ITC_EC_Q_SC;
 374                         /* PB4 - VIC 6:0 */
 375                         uint8_t VIC;
 376                         /* PB5 - YQ 7:6, CN 5:4, PR 3:0 */
 377                         uint8_t YQ_CN_PR;
 378                         /* PB6 to PB13 */
 379                         uint16_t top_bar_end;
 380                         uint16_t bottom_bar_start;
 381                         uint16_t left_bar_end;
 382                         uint16_t right_bar_start;
 383                 } __attribute__ ((packed)) avi;
 384                 struct {
 385                         uint8_t vn[8];
 386                         uint8_t pd[16];
 387                         uint8_t sdi;
 388                 } __attribute__ ((packed)) spd;
 389                 uint8_t payload[27];
 390         } __attribute__ ((packed)) body;
 391 } __attribute__((packed));
 392
 393 struct intel_hdmi {
 394         u32 hdmi_reg;
 395         int ddc_bus;
 396         uint32_t color_range;
 397         bool color_range_auto;
 398         bool has_hdmi_sink;
 399         bool has_audio;
 400         enum hdmi_force_audio force_audio;
 401         bool rgb_quant_range_selectable;
 402         void (*write_infoframe)(struct drm_encoder *encoder,
 403                                 struct dip_infoframe *frame);
 404         void (*set_infoframes)(struct drm_encoder *encoder,
 405                                struct drm_display_mode *adjusted_mode);
 406 };
 407
 408 #define DP_MAX_DOWNSTREAM_PORTS         0x10
 409 #define DP_LINK_CONFIGURATION_SIZE      9
 410
 411 struct intel_dp {
 412         uint32_t output_reg;
 413         uint32_t aux_ch_ctl_reg;
 414         uint32_t DP;
 415         uint8_t  link_configuration[DP_LINK_CONFIGURATION_SIZE];
 416         bool has_audio;
 417         enum hdmi_force_audio force_audio;
 418         uint32_t color_range;
 419         bool color_range_auto;
 420         uint8_t link_bw;
 421         uint8_t lane_count;
 422         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
 423         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
 424         struct i2c_adapter adapter;
 425         struct i2c_algo_dp_aux_data algo;
 426         bool is_pch_edp;
 427         uint8_t train_set[4];
 428         int panel_power_up_delay;
 429         int panel_power_down_delay;
 430         int panel_power_cycle_delay;
 431         int backlight_on_delay;
 432         int backlight_off_delay;
 433         struct delayed_work panel_vdd_work;
 434         bool want_panel_vdd;
 435         struct intel_connector *attached_connector;
 436 };
 437
 438 struct intel_digital_port {
 439         struct intel_encoder base;
 440         enum port port;
 441         u32 port_reversal;
 442         struct intel_dp dp;
 443         struct intel_hdmi hdmi;
 444 };
 445
 446 static inline int
 447 vlv_dport_to_channel(struct intel_digital_port *dport)
 448 {
 449         switch (dport->port) {
 450         case PORT_B:
 451                 return 0;
 452         case PORT_C:
 453                 return 1;
 454         default:
 455                 BUG();
 456         }
 457 }
 458
 459 static inline struct drm_crtc *
 460 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
 461 {
 462         struct drm_i915_private *dev_priv = dev->dev_private;
 463         return dev_priv->pipe_to_crtc_mapping[pipe];
 464 }
 465
 466 static inline struct drm_crtc *
 467 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
 468 {
 469         struct drm_i915_private *dev_priv = dev->dev_private;
 470         return dev_priv->plane_to_crtc_mapping[plane];
 471 }
 472
 473 struct intel_unpin_work {
 474         struct work_struct work;
 475         struct drm_crtc *crtc;
 476         struct drm_i915_gem_object *old_fb_obj;
 477         struct drm_i915_gem_object *pending_flip_obj;
 478         struct drm_pending_vblank_event *event;
 479         atomic_t pending;
 480 #define INTEL_FLIP_INACTIVE     0
 481 #define INTEL_FLIP_PENDING      1
 482 #define INTEL_FLIP_COMPLETE     2
 483         bool enable_stall_check;
 484 };
 485
 486 struct intel_fbc_work {
 487         struct delayed_work work;
 488         struct drm_crtc *crtc;
 489         struct drm_framebuffer *fb;
 490         int interval;
 491 };
 492
 493 int intel_pch_rawclk(struct drm_device *dev);
 494
 495 int intel_connector_update_modes(struct drm_connector *connector,
 496                                 struct edid *edid);
 497 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
 498
 499 extern void intel_attach_force_audio_property(struct drm_connector *connector);
 500 extern void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
 501
 502 extern bool intel_pipe_has_type(struct drm_crtc *crtc, int type);
 503 extern void intel_crt_init(struct drm_device *dev);
 504 extern void intel_hdmi_init(struct drm_device *dev,
 505                             int hdmi_reg, enum port port);
 506 extern void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
 507                                       struct intel_connector *intel_connector);
 508 extern struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
 509 extern bool intel_hdmi_compute_config(struct intel_encoder *encoder,
 510                                       struct intel_crtc_config *pipe_config);
 511 extern void intel_dip_infoframe_csum(struct dip_infoframe *avi_if);
 512 extern bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg,
 513                             bool is_sdvob);
 514 extern void intel_dvo_init(struct drm_device *dev);
 515 extern void intel_tv_init(struct drm_device *dev);
 516 extern void intel_mark_busy(struct drm_device *dev);
 517 extern void intel_mark_fb_busy(struct drm_i915_gem_object *obj);
 518 extern void intel_mark_idle(struct drm_device *dev);
 519 extern bool intel_lvds_init(struct drm_device *dev);
 520 extern bool intel_is_dual_link_lvds(struct drm_device *dev);
 521 extern void intel_dp_init(struct drm_device *dev, int output_reg,
 522                           enum port port);
 523 extern void intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 524                                     struct intel_connector *intel_connector);
 525 extern void intel_dp_init_link_config(struct intel_dp *intel_dp);
 526 extern void intel_dp_start_link_train(struct intel_dp *intel_dp);
 527 extern void intel_dp_complete_link_train(struct intel_dp *intel_dp);
 528 extern void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
 529 extern void intel_dp_encoder_destroy(struct drm_encoder *encoder);
 530 extern void intel_dp_check_link_status(struct intel_dp *intel_dp);
 531 extern bool intel_dp_compute_config(struct intel_encoder *encoder,
 532                                     struct intel_crtc_config *pipe_config);
 533 extern bool intel_dpd_is_edp(struct drm_device *dev);
 534 extern void ironlake_edp_backlight_on(struct intel_dp *intel_dp);
 535 extern void ironlake_edp_backlight_off(struct intel_dp *intel_dp);
 536 extern void ironlake_edp_panel_on(struct intel_dp *intel_dp);
 537 extern void ironlake_edp_panel_off(struct intel_dp *intel_dp);
 538 extern void ironlake_edp_panel_vdd_on(struct intel_dp *intel_dp);
 539 extern void ironlake_edp_panel_vdd_off(struct intel_dp *intel_dp, bool sync);
 540 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
 541 extern int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
 542 extern void intel_flush_display_plane(struct drm_i915_private *dev_priv,
 543                                       enum plane plane);
 544
 545 /* intel_panel.c */
 546 extern int intel_panel_init(struct intel_panel *panel,
 547                             struct drm_display_mode *fixed_mode);
 548 extern void intel_panel_fini(struct intel_panel *panel);
 549
 550 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
 551                                    struct drm_display_mode *adjusted_mode);
 552 extern void intel_pch_panel_fitting(struct drm_device *dev,
 553                                     int fitting_mode,
 554                                     const struct drm_display_mode *mode,
 555                                     struct drm_display_mode *adjusted_mode);
 556 extern u32 intel_panel_get_max_backlight(struct drm_device *dev);
 557 extern void intel_panel_set_backlight(struct drm_device *dev, u32 level);
 558 extern int intel_panel_setup_backlight(struct drm_connector *connector);
 559 extern void intel_panel_enable_backlight(struct drm_device *dev,
 560                                          enum pipe pipe);
 561 extern void intel_panel_disable_backlight(struct drm_device *dev);
 562 extern void intel_panel_destroy_backlight(struct drm_device *dev);
 563 extern enum drm_connector_status intel_panel_detect(struct drm_device *dev);
 564
 565 struct intel_set_config {
 566         struct drm_encoder **save_connector_encoders;
 567         struct drm_crtc **save_encoder_crtcs;
 568
 569         bool fb_changed;
 570         bool mode_changed;
 571 };
 572
 573 extern int intel_set_mode(struct drm_crtc *crtc, struct drm_display_mode *mode,
 574                           int x, int y, struct drm_framebuffer *old_fb);
 575 extern void intel_modeset_disable(struct drm_device *dev);
 576 extern void intel_crtc_restore_mode(struct drm_crtc *crtc);
 577 extern void intel_crtc_load_lut(struct drm_crtc *crtc);
 578 extern void intel_crtc_update_dpms(struct drm_crtc *crtc);
 579 extern void intel_encoder_destroy(struct drm_encoder *encoder);
 580 extern void intel_encoder_dpms(struct intel_encoder *encoder, int mode);
 581 extern bool intel_encoder_check_is_cloned(struct intel_encoder *encoder);
 582 extern void intel_connector_dpms(struct drm_connector *, int mode);
 583 extern bool intel_connector_get_hw_state(struct intel_connector *connector);
 584 extern void intel_modeset_check_state(struct drm_device *dev);
 585 extern void intel_plane_restore(struct drm_plane *plane);
 586
 587
 588 static inline struct intel_encoder *intel_attached_encoder(struct drm_connector *connector)
 589 {
 590         return to_intel_connector(connector)->encoder;
 591 }
 592
 593 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
 594 {
 595         struct intel_digital_port *intel_dig_port =
 596                 container_of(encoder, struct intel_digital_port, base.base);
 597         return &intel_dig_port->dp;
 598 }
 599
 600 static inline struct intel_digital_port *
 601 enc_to_dig_port(struct drm_encoder *encoder)
 602 {
 603         return container_of(encoder, struct intel_digital_port, base.base);
 604 }
 605
 606 static inline struct intel_digital_port *
 607 dp_to_dig_port(struct intel_dp *intel_dp)
 608 {
 609         return container_of(intel_dp, struct intel_digital_port, dp);
 610 }
 611
 612 static inline struct intel_digital_port *
 613 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
 614 {
 615         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
 616 }
 617
 618 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
 619                                 struct intel_digital_port *port);
 620
 621 extern void intel_connector_attach_encoder(struct intel_connector *connector,
 622                                            struct intel_encoder *encoder);
 623 extern struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
 624
 625 extern struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 626                                                     struct drm_crtc *crtc);
 627 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
 628                                 struct drm_file *file_priv);
 629 extern enum transcoder
 630 intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
 631                              enum pipe pipe);
 632 extern void intel_wait_for_vblank(struct drm_device *dev, int pipe);
 633 extern void intel_wait_for_pipe_off(struct drm_device *dev, int pipe);
 634 extern int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
 635 extern void vlv_wait_port_ready(struct drm_i915_private *dev_priv, int port);
 636
 637 struct intel_load_detect_pipe {
 638         struct drm_framebuffer *release_fb;
 639         bool load_detect_temp;
 640         int dpms_mode;
 641 };
 642 extern bool intel_get_load_detect_pipe(struct drm_connector *connector,
 643                                        struct drm_display_mode *mode,
 644                                        struct intel_load_detect_pipe *old);
 645 extern void intel_release_load_detect_pipe(struct drm_connector *connector,
 646                                            struct intel_load_detect_pipe *old);
 647
 648 extern void intelfb_restore(void);
 649 extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
 650                                     u16 blue, int regno);
 651 extern void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
 652                                     u16 *blue, int regno);
 653 extern void intel_enable_clock_gating(struct drm_device *dev);
 654
 655 extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
 656                                       struct drm_i915_gem_object *obj,
 657                                       struct intel_ring_buffer *pipelined);
 658 extern void intel_unpin_fb_obj(struct drm_i915_gem_object *obj);
 659
 660 extern int intel_framebuffer_init(struct drm_device *dev,
 661                                   struct intel_framebuffer *ifb,
 662                                   struct drm_mode_fb_cmd2 *mode_cmd,
 663                                   struct drm_i915_gem_object *obj);
 664 extern int intel_fbdev_init(struct drm_device *dev);
 665 extern void intel_fbdev_initial_config(struct drm_device *dev);
 666 extern void intel_fbdev_fini(struct drm_device *dev);
 667 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state);
 668 extern void intel_prepare_page_flip(struct drm_device *dev, int plane);
 669 extern void intel_finish_page_flip(struct drm_device *dev, int pipe);
 670 extern void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
 671
 672 extern void intel_setup_overlay(struct drm_device *dev);
 673 extern void intel_cleanup_overlay(struct drm_device *dev);
 674 extern int intel_overlay_switch_off(struct intel_overlay *overlay);
 675 extern int intel_overlay_put_image(struct drm_device *dev, void *data,
 676                                    struct drm_file *file_priv);
 677 extern int intel_overlay_attrs(struct drm_device *dev, void *data,
 678                                struct drm_file *file_priv);
 679
 680 extern void intel_fb_output_poll_changed(struct drm_device *dev);
 681 extern void intel_fb_restore_mode(struct drm_device *dev);
 682
 683 extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
 684                         bool state);
 685 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
 686 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
 687
 688 extern void intel_init_clock_gating(struct drm_device *dev);
 689 extern void intel_write_eld(struct drm_encoder *encoder,
 690                             struct drm_display_mode *mode);
 691 extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
 692 extern void intel_cpu_transcoder_set_m_n(struct intel_crtc *crtc,
 693                                          struct intel_link_m_n *m_n);
 694 extern void intel_pch_transcoder_set_m_n(struct intel_crtc *crtc,
 695                                          struct intel_link_m_n *m_n);
 696 extern void intel_prepare_ddi(struct drm_device *dev);
 697 extern void hsw_fdi_link_train(struct drm_crtc *crtc);
 698 extern void intel_ddi_init(struct drm_device *dev, enum port port);
 699
 700 /* For use by IVB LP watermark workaround in intel_sprite.c */
 701 extern void intel_update_watermarks(struct drm_device *dev);
 702 extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
 703                                            uint32_t sprite_width,
 704                                            int pixel_size);
 705 extern void intel_update_linetime_watermarks(struct drm_device *dev, int pipe,
 706                          struct drm_display_mode *mode);
 707
 708 extern unsigned long intel_gen4_compute_page_offset(int *x, int *y,
 709                                                     unsigned int tiling_mode,
 710                                                     unsigned int bpp,
 711                                                     unsigned int pitch);
 712
 713 extern int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 714                                      struct drm_file *file_priv);
 715 extern int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
 716                                      struct drm_file *file_priv);
 717
 718 extern u32 intel_dpio_read(struct drm_i915_private *dev_priv, int reg);
 719 extern void intel_dpio_write(struct drm_i915_private *dev_priv, int reg,
 720                              u32 val);
 721
 722 /* Power-related functions, located in intel_pm.c */
 723 extern void intel_init_pm(struct drm_device *dev);
 724 /* FBC */
 725 extern bool intel_fbc_enabled(struct drm_device *dev);
 726 extern void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval);
 727 extern void intel_update_fbc(struct drm_device *dev);
 728 /* IPS */
 729 extern void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
 730 extern void intel_gpu_ips_teardown(void);
 731
 732 extern bool intel_using_power_well(struct drm_device *dev);
 733 extern void intel_init_power_well(struct drm_device *dev);
 734 extern void intel_set_power_well(struct drm_device *dev, bool enable);
 735 extern void intel_enable_gt_powersave(struct drm_device *dev);
 736 extern void intel_disable_gt_powersave(struct drm_device *dev);
 737 extern void gen6_gt_check_fifodbg(struct drm_i915_private *dev_priv);
 738 extern void ironlake_teardown_rc6(struct drm_device *dev);
 739
 740 extern bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 741                                    enum pipe *pipe);
 742 extern int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv);
 743 extern void intel_ddi_pll_init(struct drm_device *dev);
 744 extern void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
 745 extern void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
 746                                               enum transcoder cpu_transcoder);
 747 extern void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
 748 extern void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
 749 extern void intel_ddi_setup_hw_pll_state(struct drm_device *dev);
 750 extern bool intel_ddi_pll_mode_set(struct drm_crtc *crtc, int clock);
 751 extern void intel_ddi_put_crtc_pll(struct drm_crtc *crtc);
 752 extern void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
 753 extern void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
 754 extern bool
 755 intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
 756 extern void intel_ddi_fdi_disable(struct drm_crtc *crtc);
 757
 758 extern void intel_display_handle_reset(struct drm_device *dev);
 759 extern bool intel_set_cpu_fifo_underrun_reporting(struct drm_device *dev,
 760                                                   enum pipe pipe,
 761                                                   bool enable);
 762 extern bool intel_set_pch_fifo_underrun_reporting(struct drm_device *dev,
 763                                                  enum transcoder pch_transcoder,
 764                                                  bool enable);
 765
 766 #endif /* __INTEL_DRV_H__ */