drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <jesse.barnes@intel.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25 #ifndef __INTEL_DRV_H__
  26 #define __INTEL_DRV_H__
  27
  28 #include <linux/async.h>
  29 #include <linux/i2c.h>
  30 #include <linux/hdmi.h>
  31 #include <linux/sched/clock.h>
  32 #include <drm/i915_drm.h>
  33 #include "i915_drv.h"
  34 #include <drm/drm_crtc.h>
  35 #include <drm/drm_crtc_helper.h>
  36 #include <drm/drm_encoder.h>
  37 #include <drm/drm_fb_helper.h>
  38 #include <drm/drm_dp_dual_mode_helper.h>
  39 #include <drm/drm_dp_mst_helper.h>
  40 #include <drm/drm_rect.h>
  41 #include <drm/drm_atomic.h>
  42 #include <media/cec-notifier.h>
  43
  44 /**
  45  * __wait_for - magic wait macro
  46  *
  47  * Macro to help avoid open coding check/wait/timeout patterns. Note that it's
  48  * important that we check the condition again after having timed out, since the
  49  * timeout could be due to preemption or similar and we've never had a chance to
  50  * check the condition before the timeout.
  51  */
  52 #define __wait_for(OP, COND, US, Wmin, Wmax) ({ \
  53         const ktime_t end__ = ktime_add_ns(ktime_get_raw(), 1000ll * (US)); \
  54         long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \
  55         int ret__;                                                      \
  56         might_sleep();                                                  \
  57         for (;;) {                                                      \
  58                 const bool expired__ = ktime_after(ktime_get_raw(), end__); \
  59                 OP;                                                     \
  60                 /* Guarantee COND check prior to timeout */             \
  61                 barrier();                                              \
  62                 if (COND) {                                             \
  63                         ret__ = 0;                                      \
  64                         break;                                          \
  65                 }                                                       \
  66                 if (expired__) {                                        \
  67                         ret__ = -ETIMEDOUT;                             \
  68                         break;                                          \
  69                 }                                                       \
  70                 usleep_range(wait__, wait__ * 2);                       \
  71                 if (wait__ < (Wmax))                                    \
  72                         wait__ <<= 1;                                   \
  73         }                                                               \
  74         ret__;                                                          \
  75 })
  76
  77 #define _wait_for(COND, US, Wmin, Wmax) __wait_for(, (COND), (US), (Wmin), \
  78                                                    (Wmax))
  79 #define wait_for(COND, MS)              _wait_for((COND), (MS) * 1000, 10, 1000)
  80
  81 /* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
  82 #if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
  83 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) WARN_ON_ONCE((ATOMIC) && !in_atomic())
  84 #else
  85 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) do { } while (0)
  86 #endif
  87
  88 #define _wait_for_atomic(COND, US, ATOMIC) \
  89 ({ \
  90         int cpu, ret, timeout = (US) * 1000; \
  91         u64 base; \
  92         _WAIT_FOR_ATOMIC_CHECK(ATOMIC); \
  93         if (!(ATOMIC)) { \
  94                 preempt_disable(); \
  95                 cpu = smp_processor_id(); \
  96         } \
  97         base = local_clock(); \
  98         for (;;) { \
  99                 u64 now = local_clock(); \
 100                 if (!(ATOMIC)) \
 101                         preempt_enable(); \
 102                 /* Guarantee COND check prior to timeout */ \
 103                 barrier(); \
 104                 if (COND) { \
 105                         ret = 0; \
 106                         break; \
 107                 } \
 108                 if (now - base >= timeout) { \
 109                         ret = -ETIMEDOUT; \
 110                         break; \
 111                 } \
 112                 cpu_relax(); \
 113                 if (!(ATOMIC)) { \
 114                         preempt_disable(); \
 115                         if (unlikely(cpu != smp_processor_id())) { \
 116                                 timeout -= now - base; \
 117                                 cpu = smp_processor_id(); \
 118                                 base = local_clock(); \
 119                         } \
 120                 } \
 121         } \
 122         ret; \
 123 })
 124
 125 #define wait_for_us(COND, US) \
 126 ({ \
 127         int ret__; \
 128         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 129         if ((US) > 10) \
 130                 ret__ = _wait_for((COND), (US), 10, 10); \
 131         else \
 132                 ret__ = _wait_for_atomic((COND), (US), 0); \
 133         ret__; \
 134 })
 135
 136 #define wait_for_atomic_us(COND, US) \
 137 ({ \
 138         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 139         BUILD_BUG_ON((US) > 50000); \
 140         _wait_for_atomic((COND), (US), 1); \
 141 })
 142
 143 #define wait_for_atomic(COND, MS) wait_for_atomic_us((COND), (MS) * 1000)
 144
 145 #define KHz(x) (1000 * (x))
 146 #define MHz(x) KHz(1000 * (x))
 147
 148 #define KBps(x) (1000 * (x))
 149 #define MBps(x) KBps(1000 * (x))
 150 #define GBps(x) ((u64)1000 * MBps((x)))
 151
 152 /*
 153  * Display related stuff
 154  */
 155
 156 /* store information about an Ixxx DVO */
 157 /* The i830->i865 use multiple DVOs with multiple i2cs */
 158 /* the i915, i945 have a single sDVO i2c bus - which is different */
 159 #define MAX_OUTPUTS 6
 160 /* maximum connectors per crtcs in the mode set */
 161
 162 #define INTEL_I2C_BUS_DVO 1
 163 #define INTEL_I2C_BUS_SDVO 2
 164
 165 /* these are outputs from the chip - integrated only
 166    external chips are via DVO or SDVO output */
 167 enum intel_output_type {
 168         INTEL_OUTPUT_UNUSED = 0,
 169         INTEL_OUTPUT_ANALOG = 1,
 170         INTEL_OUTPUT_DVO = 2,
 171         INTEL_OUTPUT_SDVO = 3,
 172         INTEL_OUTPUT_LVDS = 4,
 173         INTEL_OUTPUT_TVOUT = 5,
 174         INTEL_OUTPUT_HDMI = 6,
 175         INTEL_OUTPUT_DP = 7,
 176         INTEL_OUTPUT_EDP = 8,
 177         INTEL_OUTPUT_DSI = 9,
 178         INTEL_OUTPUT_DDI = 10,
 179         INTEL_OUTPUT_DP_MST = 11,
 180 };
 181
 182 #define INTEL_DVO_CHIP_NONE 0
 183 #define INTEL_DVO_CHIP_LVDS 1
 184 #define INTEL_DVO_CHIP_TMDS 2
 185 #define INTEL_DVO_CHIP_TVOUT 4
 186
 187 #define INTEL_DSI_VIDEO_MODE    0
 188 #define INTEL_DSI_COMMAND_MODE  1
 189
 190 struct intel_framebuffer {
 191         struct drm_framebuffer base;
 192         struct intel_rotation_info rot_info;
 193
 194         /* for each plane in the normal GTT view */
 195         struct {
 196                 unsigned int x, y;
 197         } normal[2];
 198         /* for each plane in the rotated GTT view */
 199         struct {
 200                 unsigned int x, y;
 201                 unsigned int pitch; /* pixels */
 202         } rotated[2];
 203 };
 204
 205 struct intel_fbdev {
 206         struct drm_fb_helper helper;
 207         struct intel_framebuffer *fb;
 208         struct i915_vma *vma;
 209         unsigned long vma_flags;
 210         async_cookie_t cookie;
 211         int preferred_bpp;
 212 };
 213
 214 struct intel_encoder {
 215         struct drm_encoder base;
 216
 217         enum intel_output_type type;
 218         enum port port;
 219         unsigned int cloneable;
 220         bool (*hotplug)(struct intel_encoder *encoder,
 221                         struct intel_connector *connector);
 222         enum intel_output_type (*compute_output_type)(struct intel_encoder *,
 223                                                       struct intel_crtc_state *,
 224                                                       struct drm_connector_state *);
 225         bool (*compute_config)(struct intel_encoder *,
 226                                struct intel_crtc_state *,
 227                                struct drm_connector_state *);
 228         void (*pre_pll_enable)(struct intel_encoder *,
 229                                const struct intel_crtc_state *,
 230                                const struct drm_connector_state *);
 231         void (*pre_enable)(struct intel_encoder *,
 232                            const struct intel_crtc_state *,
 233                            const struct drm_connector_state *);
 234         void (*enable)(struct intel_encoder *,
 235                        const struct intel_crtc_state *,
 236                        const struct drm_connector_state *);
 237         void (*disable)(struct intel_encoder *,
 238                         const struct intel_crtc_state *,
 239                         const struct drm_connector_state *);
 240         void (*post_disable)(struct intel_encoder *,
 241                              const struct intel_crtc_state *,
 242                              const struct drm_connector_state *);
 243         void (*post_pll_disable)(struct intel_encoder *,
 244                                  const struct intel_crtc_state *,
 245                                  const struct drm_connector_state *);
 246         /* Read out the current hw state of this connector, returning true if
 247          * the encoder is active. If the encoder is enabled it also set the pipe
 248          * it is connected to in the pipe parameter. */
 249         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 250         /* Reconstructs the equivalent mode flags for the current hardware
 251          * state. This must be called _after_ display->get_pipe_config has
 252          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 253          * be set correctly before calling this function. */
 254         void (*get_config)(struct intel_encoder *,
 255                            struct intel_crtc_state *pipe_config);
 256         /* Returns a mask of power domains that need to be referenced as part
 257          * of the hardware state readout code. */
 258         u64 (*get_power_domains)(struct intel_encoder *encoder,
 259                                  struct intel_crtc_state *crtc_state);
 260         /*
 261          * Called during system suspend after all pending requests for the
 262          * encoder are flushed (for example for DP AUX transactions) and
 263          * device interrupts are disabled.
 264          */
 265         void (*suspend)(struct intel_encoder *);
 266         int crtc_mask;
 267         enum hpd_pin hpd_pin;
 268         enum intel_display_power_domain power_domain;
 269         /* for communication with audio component; protected by av_mutex */
 270         const struct drm_connector *audio_connector;
 271 };
 272
 273 struct intel_panel {
 274         struct drm_display_mode *fixed_mode;
 275         struct drm_display_mode *downclock_mode;
 276
 277         /* backlight */
 278         struct {
 279                 bool present;
 280                 u32 level;
 281                 u32 min;
 282                 u32 max;
 283                 bool enabled;
 284                 bool combination_mode;  /* gen 2/4 only */
 285                 bool active_low_pwm;
 286                 bool alternate_pwm_increment;   /* lpt+ */
 287
 288                 /* PWM chip */
 289                 bool util_pin_active_low;       /* bxt+ */
 290                 u8 controller;          /* bxt+ only */
 291                 struct pwm_device *pwm;
 292
 293                 struct backlight_device *device;
 294
 295                 /* Connector and platform specific backlight functions */
 296                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 297                 uint32_t (*get)(struct intel_connector *connector);
 298                 void (*set)(const struct drm_connector_state *conn_state, uint32_t level);
 299                 void (*disable)(const struct drm_connector_state *conn_state);
 300                 void (*enable)(const struct intel_crtc_state *crtc_state,
 301                                const struct drm_connector_state *conn_state);
 302                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 303                                       uint32_t hz);
 304                 void (*power)(struct intel_connector *, bool enable);
 305         } backlight;
 306 };
 307
 308 struct intel_digital_port;
 309
 310 /*
 311  * This structure serves as a translation layer between the generic HDCP code
 312  * and the bus-specific code. What that means is that HDCP over HDMI differs
 313  * from HDCP over DP, so to account for these differences, we need to
 314  * communicate with the receiver through this shim.
 315  *
 316  * For completeness, the 2 buses differ in the following ways:
 317  *      - DP AUX vs. DDC
 318  *              HDCP registers on the receiver are set via DP AUX for DP, and
 319  *              they are set via DDC for HDMI.
 320  *      - Receiver register offsets
 321  *              The offsets of the registers are different for DP vs. HDMI
 322  *      - Receiver register masks/offsets
 323  *              For instance, the ready bit for the KSV fifo is in a different
 324  *              place on DP vs HDMI
 325  *      - Receiver register names
 326  *              Seriously. In the DP spec, the 16-bit register containing
 327  *              downstream information is called BINFO, on HDMI it's called
 328  *              BSTATUS. To confuse matters further, DP has a BSTATUS register
 329  *              with a completely different definition.
 330  *      - KSV FIFO
 331  *              On HDMI, the ksv fifo is read all at once, whereas on DP it must
 332  *              be read 3 keys at a time
 333  *      - Aksv output
 334  *              Since Aksv is hidden in hardware, there's different procedures
 335  *              to send it over DP AUX vs DDC
 336  */
 337 struct intel_hdcp_shim {
 338         /* Outputs the transmitter's An and Aksv values to the receiver. */
 339         int (*write_an_aksv)(struct intel_digital_port *intel_dig_port, u8 *an);
 340
 341         /* Reads the receiver's key selection vector */
 342         int (*read_bksv)(struct intel_digital_port *intel_dig_port, u8 *bksv);
 343
 344         /*
 345          * Reads BINFO from DP receivers and BSTATUS from HDMI receivers. The
 346          * definitions are the same in the respective specs, but the names are
 347          * different. Call it BSTATUS since that's the name the HDMI spec
 348          * uses and it was there first.
 349          */
 350         int (*read_bstatus)(struct intel_digital_port *intel_dig_port,
 351                             u8 *bstatus);
 352
 353         /* Determines whether a repeater is present downstream */
 354         int (*repeater_present)(struct intel_digital_port *intel_dig_port,
 355                                 bool *repeater_present);
 356
 357         /* Reads the receiver's Ri' value */
 358         int (*read_ri_prime)(struct intel_digital_port *intel_dig_port, u8 *ri);
 359
 360         /* Determines if the receiver's KSV FIFO is ready for consumption */
 361         int (*read_ksv_ready)(struct intel_digital_port *intel_dig_port,
 362                               bool *ksv_ready);
 363
 364         /* Reads the ksv fifo for num_downstream devices */
 365         int (*read_ksv_fifo)(struct intel_digital_port *intel_dig_port,
 366                              int num_downstream, u8 *ksv_fifo);
 367
 368         /* Reads a 32-bit part of V' from the receiver */
 369         int (*read_v_prime_part)(struct intel_digital_port *intel_dig_port,
 370                                  int i, u32 *part);
 371
 372         /* Enables HDCP signalling on the port */
 373         int (*toggle_signalling)(struct intel_digital_port *intel_dig_port,
 374                                  bool enable);
 375
 376         /* Ensures the link is still protected */
 377         bool (*check_link)(struct intel_digital_port *intel_dig_port);
 378
 379         /* Detects panel's hdcp capability. This is optional for HDMI. */
 380         int (*hdcp_capable)(struct intel_digital_port *intel_dig_port,
 381                             bool *hdcp_capable);
 382 };
 383
 384 struct intel_connector {
 385         struct drm_connector base;
 386         /*
 387          * The fixed encoder this connector is connected to.
 388          */
 389         struct intel_encoder *encoder;
 390
 391         /* ACPI device id for ACPI and driver cooperation */
 392         u32 acpi_device_id;
 393
 394         /* Reads out the current hw, returning true if the connector is enabled
 395          * and active (i.e. dpms ON state). */
 396         bool (*get_hw_state)(struct intel_connector *);
 397
 398         /* Panel info for eDP and LVDS */
 399         struct intel_panel panel;
 400
 401         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 402         struct edid *edid;
 403         struct edid *detect_edid;
 404
 405         /* since POLL and HPD connectors may use the same HPD line keep the native
 406            state of connector->polled in case hotplug storm detection changes it */
 407         u8 polled;
 408
 409         void *port; /* store this opaque as its illegal to dereference it */
 410
 411         struct intel_dp *mst_port;
 412
 413         /* Work struct to schedule a uevent on link train failure */
 414         struct work_struct modeset_retry_work;
 415
 416         const struct intel_hdcp_shim *hdcp_shim;
 417         struct mutex hdcp_mutex;
 418         uint64_t hdcp_value; /* protected by hdcp_mutex */
 419         struct delayed_work hdcp_check_work;
 420         struct work_struct hdcp_prop_work;
 421 };
 422
 423 struct intel_digital_connector_state {
 424         struct drm_connector_state base;
 425
 426         enum hdmi_force_audio force_audio;
 427         int broadcast_rgb;
 428 };
 429
 430 #define to_intel_digital_connector_state(x) container_of(x, struct intel_digital_connector_state, base)
 431
 432 struct dpll {
 433         /* given values */
 434         int n;
 435         int m1, m2;
 436         int p1, p2;
 437         /* derived values */
 438         int     dot;
 439         int     vco;
 440         int     m;
 441         int     p;
 442 };
 443
 444 struct intel_atomic_state {
 445         struct drm_atomic_state base;
 446
 447         struct {
 448                 /*
 449                  * Logical state of cdclk (used for all scaling, watermark,
 450                  * etc. calculations and checks). This is computed as if all
 451                  * enabled crtcs were active.
 452                  */
 453                 struct intel_cdclk_state logical;
 454
 455                 /*
 456                  * Actual state of cdclk, can be different from the logical
 457                  * state only when all crtc's are DPMS off.
 458                  */
 459                 struct intel_cdclk_state actual;
 460         } cdclk;
 461
 462         bool dpll_set, modeset;
 463
 464         /*
 465          * Does this transaction change the pipes that are active?  This mask
 466          * tracks which CRTC's have changed their active state at the end of
 467          * the transaction (not counting the temporary disable during modesets).
 468          * This mask should only be non-zero when intel_state->modeset is true,
 469          * but the converse is not necessarily true; simply changing a mode may
 470          * not flip the final active status of any CRTC's
 471          */
 472         unsigned int active_pipe_changes;
 473
 474         unsigned int active_crtcs;
 475         /* minimum acceptable cdclk for each pipe */
 476         int min_cdclk[I915_MAX_PIPES];
 477         /* minimum acceptable voltage level for each pipe */
 478         u8 min_voltage_level[I915_MAX_PIPES];
 479
 480         struct intel_shared_dpll_state shared_dpll[I915_NUM_PLLS];
 481
 482         /*
 483          * Current watermarks can't be trusted during hardware readout, so
 484          * don't bother calculating intermediate watermarks.
 485          */
 486         bool skip_intermediate_wm;
 487
 488         bool rps_interactive;
 489
 490         /* Gen9+ only */
 491         struct skl_ddb_values wm_results;
 492
 493         struct i915_sw_fence commit_ready;
 494
 495         struct llist_node freed;
 496 };
 497
 498 struct intel_plane_state {
 499         struct drm_plane_state base;
 500         struct i915_vma *vma;
 501         unsigned long flags;
 502 #define PLANE_HAS_FENCE BIT(0)
 503
 504         struct {
 505                 u32 offset;
 506                 int x, y;
 507         } main;
 508         struct {
 509                 u32 offset;
 510                 int x, y;
 511         } aux;
 512
 513         /* plane control register */
 514         u32 ctl;
 515
 516         /* plane color control register */
 517         u32 color_ctl;
 518
 519         /*
 520          * scaler_id
 521          *    = -1 : not using a scaler
 522          *    >=  0 : using a scalers
 523          *
 524          * plane requiring a scaler:
 525          *   - During check_plane, its bit is set in
 526          *     crtc_state->scaler_state.scaler_users by calling helper function
 527          *     update_scaler_plane.
 528          *   - scaler_id indicates the scaler it got assigned.
 529          *
 530          * plane doesn't require a scaler:
 531          *   - this can happen when scaling is no more required or plane simply
 532          *     got disabled.
 533          *   - During check_plane, corresponding bit is reset in
 534          *     crtc_state->scaler_state.scaler_users by calling helper function
 535          *     update_scaler_plane.
 536          */
 537         int scaler_id;
 538
 539         struct drm_intel_sprite_colorkey ckey;
 540 };
 541
 542 struct intel_initial_plane_config {
 543         struct intel_framebuffer *fb;
 544         unsigned int tiling;
 545         int size;
 546         u32 base;
 547 };
 548
 549 #define SKL_MIN_SRC_W 8
 550 #define SKL_MAX_SRC_W 4096
 551 #define SKL_MIN_SRC_H 8
 552 #define SKL_MAX_SRC_H 4096
 553 #define SKL_MIN_DST_W 8
 554 #define SKL_MAX_DST_W 4096
 555 #define SKL_MIN_DST_H 8
 556 #define SKL_MAX_DST_H 4096
 557 #define ICL_MAX_SRC_W 5120
 558 #define ICL_MAX_SRC_H 4096
 559 #define ICL_MAX_DST_W 5120
 560 #define ICL_MAX_DST_H 4096
 561 #define SKL_MIN_YUV_420_SRC_W 16
 562 #define SKL_MIN_YUV_420_SRC_H 16
 563
 564 struct intel_scaler {
 565         int in_use;
 566         uint32_t mode;
 567 };
 568
 569 struct intel_crtc_scaler_state {
 570 #define SKL_NUM_SCALERS 2
 571         struct intel_scaler scalers[SKL_NUM_SCALERS];
 572
 573         /*
 574          * scaler_users: keeps track of users requesting scalers on this crtc.
 575          *
 576          *     If a bit is set, a user is using a scaler.
 577          *     Here user can be a plane or crtc as defined below:
 578          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 579          *       bit 31    - crtc
 580          *
 581          * Instead of creating a new index to cover planes and crtc, using
 582          * existing drm_plane_index for planes which is well less than 31
 583          * planes and bit 31 for crtc. This should be fine to cover all
 584          * our platforms.
 585          *
 586          * intel_atomic_setup_scalers will setup available scalers to users
 587          * requesting scalers. It will gracefully fail if request exceeds
 588          * avilability.
 589          */
 590 #define SKL_CRTC_INDEX 31
 591         unsigned scaler_users;
 592
 593         /* scaler used by crtc for panel fitting purpose */
 594         int scaler_id;
 595 };
 596
 597 /* drm_mode->private_flags */
 598 #define I915_MODE_FLAG_INHERITED 1
 599 /* Flag to get scanline using frame time stamps */
 600 #define I915_MODE_FLAG_GET_SCANLINE_FROM_TIMESTAMP (1<<1)
 601
 602 struct intel_pipe_wm {
 603         struct intel_wm_level wm[5];
 604         uint32_t linetime;
 605         bool fbc_wm_enabled;
 606         bool pipe_enabled;
 607         bool sprites_enabled;
 608         bool sprites_scaled;
 609 };
 610
 611 struct skl_plane_wm {
 612         struct skl_wm_level wm[8];
 613         struct skl_wm_level uv_wm[8];
 614         struct skl_wm_level trans_wm;
 615         bool is_planar;
 616 };
 617
 618 struct skl_pipe_wm {
 619         struct skl_plane_wm planes[I915_MAX_PLANES];
 620         uint32_t linetime;
 621 };
 622
 623 enum vlv_wm_level {
 624         VLV_WM_LEVEL_PM2,
 625         VLV_WM_LEVEL_PM5,
 626         VLV_WM_LEVEL_DDR_DVFS,
 627         NUM_VLV_WM_LEVELS,
 628 };
 629
 630 struct vlv_wm_state {
 631         struct g4x_pipe_wm wm[NUM_VLV_WM_LEVELS];
 632         struct g4x_sr_wm sr[NUM_VLV_WM_LEVELS];
 633         uint8_t num_levels;
 634         bool cxsr;
 635 };
 636
 637 struct vlv_fifo_state {
 638         u16 plane[I915_MAX_PLANES];
 639 };
 640
 641 enum g4x_wm_level {
 642         G4X_WM_LEVEL_NORMAL,
 643         G4X_WM_LEVEL_SR,
 644         G4X_WM_LEVEL_HPLL,
 645         NUM_G4X_WM_LEVELS,
 646 };
 647
 648 struct g4x_wm_state {
 649         struct g4x_pipe_wm wm;
 650         struct g4x_sr_wm sr;
 651         struct g4x_sr_wm hpll;
 652         bool cxsr;
 653         bool hpll_en;
 654         bool fbc_en;
 655 };
 656
 657 struct intel_crtc_wm_state {
 658         union {
 659                 struct {
 660                         /*
 661                          * Intermediate watermarks; these can be
 662                          * programmed immediately since they satisfy
 663                          * both the current configuration we're
 664                          * switching away from and the new
 665                          * configuration we're switching to.
 666                          */
 667                         struct intel_pipe_wm intermediate;
 668
 669                         /*
 670                          * Optimal watermarks, programmed post-vblank
 671                          * when this state is committed.
 672                          */
 673                         struct intel_pipe_wm optimal;
 674                 } ilk;
 675
 676                 struct {
 677                         /* gen9+ only needs 1-step wm programming */
 678                         struct skl_pipe_wm optimal;
 679                         struct skl_ddb_entry ddb;
 680                 } skl;
 681
 682                 struct {
 683                         /* "raw" watermarks (not inverted) */
 684                         struct g4x_pipe_wm raw[NUM_VLV_WM_LEVELS];
 685                         /* intermediate watermarks (inverted) */
 686                         struct vlv_wm_state intermediate;
 687                         /* optimal watermarks (inverted) */
 688                         struct vlv_wm_state optimal;
 689                         /* display FIFO split */
 690                         struct vlv_fifo_state fifo_state;
 691                 } vlv;
 692
 693                 struct {
 694                         /* "raw" watermarks */
 695                         struct g4x_pipe_wm raw[NUM_G4X_WM_LEVELS];
 696                         /* intermediate watermarks */
 697                         struct g4x_wm_state intermediate;
 698                         /* optimal watermarks */
 699                         struct g4x_wm_state optimal;
 700                 } g4x;
 701         };
 702
 703         /*
 704          * Platforms with two-step watermark programming will need to
 705          * update watermark programming post-vblank to switch from the
 706          * safe intermediate watermarks to the optimal final
 707          * watermarks.
 708          */
 709         bool need_postvbl_update;
 710 };
 711
 712 struct intel_crtc_state {
 713         struct drm_crtc_state base;
 714
 715         /**
 716          * quirks - bitfield with hw state readout quirks
 717          *
 718          * For various reasons the hw state readout code might not be able to
 719          * completely faithfully read out the current state. These cases are
 720          * tracked with quirk flags so that fastboot and state checker can act
 721          * accordingly.
 722          */
 723 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 724         unsigned long quirks;
 725
 726         unsigned fb_bits; /* framebuffers to flip */
 727         bool update_pipe; /* can a fast modeset be performed? */
 728         bool disable_cxsr;
 729         bool update_wm_pre, update_wm_post; /* watermarks are updated */
 730         bool fb_changed; /* fb on any of the planes is changed */
 731         bool fifo_changed; /* FIFO split is changed */
 732
 733         /* Pipe source size (ie. panel fitter input size)
 734          * All planes will be positioned inside this space,
 735          * and get clipped at the edges. */
 736         int pipe_src_w, pipe_src_h;
 737
 738         /*
 739          * Pipe pixel rate, adjusted for
 740          * panel fitter/pipe scaler downscaling.
 741          */
 742         unsigned int pixel_rate;
 743
 744         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 745          * between pch encoders and cpu encoders. */
 746         bool has_pch_encoder;
 747
 748         /* Are we sending infoframes on the attached port */
 749         bool has_infoframe;
 750
 751         /* CPU Transcoder for the pipe. Currently this can only differ from the
 752          * pipe on Haswell and later (where we have a special eDP transcoder)
 753          * and Broxton (where we have special DSI transcoders). */
 754         enum transcoder cpu_transcoder;
 755
 756         /*
 757          * Use reduced/limited/broadcast rbg range, compressing from the full
 758          * range fed into the crtcs.
 759          */
 760         bool limited_color_range;
 761
 762         /* Bitmask of encoder types (enum intel_output_type)
 763          * driven by the pipe.
 764          */
 765         unsigned int output_types;
 766
 767         /* Whether we should send NULL infoframes. Required for audio. */
 768         bool has_hdmi_sink;
 769
 770         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 771          * has_dp_encoder is set. */
 772         bool has_audio;
 773
 774         /*
 775          * Enable dithering, used when the selected pipe bpp doesn't match the
 776          * plane bpp.
 777          */
 778         bool dither;
 779
 780         /*
 781          * Dither gets enabled for 18bpp which causes CRC mismatch errors for
 782          * compliance video pattern tests.
 783          * Disable dither only if it is a compliance test request for
 784          * 18bpp.
 785          */
 786         bool dither_force_disable;
 787
 788         /* Controls for the clock computation, to override various stages. */
 789         bool clock_set;
 790
 791         /* SDVO TV has a bunch of special case. To make multifunction encoders
 792          * work correctly, we need to track this at runtime.*/
 793         bool sdvo_tv_clock;
 794
 795         /*
 796          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 797          * required. This is set in the 2nd loop of calling encoder's
 798          * ->compute_config if the first pick doesn't work out.
 799          */
 800         bool bw_constrained;
 801
 802         /* Settings for the intel dpll used on pretty much everything but
 803          * haswell. */
 804         struct dpll dpll;
 805
 806         /* Selected dpll when shared or NULL. */
 807         struct intel_shared_dpll *shared_dpll;
 808
 809         /* Actual register state of the dpll, for shared dpll cross-checking. */
 810         struct intel_dpll_hw_state dpll_hw_state;
 811
 812         /* DSI PLL registers */
 813         struct {
 814                 u32 ctrl, div;
 815         } dsi_pll;
 816
 817         int pipe_bpp;
 818         struct intel_link_m_n dp_m_n;
 819
 820         /* m2_n2 for eDP downclock */
 821         struct intel_link_m_n dp_m2_n2;
 822         bool has_drrs;
 823
 824         bool has_psr;
 825         bool has_psr2;
 826
 827         /*
 828          * Frequence the dpll for the port should run at. Differs from the
 829          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 830          * already multiplied by pixel_multiplier.
 831          */
 832         int port_clock;
 833
 834         /* Used by SDVO (and if we ever fix it, HDMI). */
 835         unsigned pixel_multiplier;
 836
 837         uint8_t lane_count;
 838
 839         /*
 840          * Used by platforms having DP/HDMI PHY with programmable lane
 841          * latency optimization.
 842          */
 843         uint8_t lane_lat_optim_mask;
 844
 845         /* minimum acceptable voltage level */
 846         u8 min_voltage_level;
 847
 848         /* Panel fitter controls for gen2-gen4 + VLV */
 849         struct {
 850                 u32 control;
 851                 u32 pgm_ratios;
 852                 u32 lvds_border_bits;
 853         } gmch_pfit;
 854
 855         /* Panel fitter placement and size for Ironlake+ */
 856         struct {
 857                 u32 pos;
 858                 u32 size;
 859                 bool enabled;
 860                 bool force_thru;
 861         } pch_pfit;
 862
 863         /* FDI configuration, only valid if has_pch_encoder is set. */
 864         int fdi_lanes;
 865         struct intel_link_m_n fdi_m_n;
 866
 867         bool ips_enabled;
 868         bool ips_force_disable;
 869
 870         bool enable_fbc;
 871
 872         bool double_wide;
 873
 874         int pbn;
 875
 876         struct intel_crtc_scaler_state scaler_state;
 877
 878         /* w/a for waiting 2 vblanks during crtc enable */
 879         enum pipe hsw_workaround_pipe;
 880
 881         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 882         bool disable_lp_wm;
 883
 884         struct intel_crtc_wm_state wm;
 885
 886         /* Gamma mode programmed on the pipe */
 887         uint32_t gamma_mode;
 888
 889         /* bitmask of visible planes (enum plane_id) */
 890         u8 active_planes;
 891         u8 nv12_planes;
 892
 893         /* HDMI scrambling status */
 894         bool hdmi_scrambling;
 895
 896         /* HDMI High TMDS char rate ratio */
 897         bool hdmi_high_tmds_clock_ratio;
 898
 899         /* output format is YCBCR 4:2:0 */
 900         bool ycbcr420;
 901 };
 902
 903 struct intel_crtc {
 904         struct drm_crtc base;
 905         enum pipe pipe;
 906         /*
 907          * Whether the crtc and the connected output pipeline is active. Implies
 908          * that crtc->enabled is set, i.e. the current mode configuration has
 909          * some outputs connected to this crtc.
 910          */
 911         bool active;
 912         u8 plane_ids_mask;
 913         unsigned long long enabled_power_domains;
 914         struct intel_overlay *overlay;
 915
 916         struct intel_crtc_state *config;
 917
 918         /* global reset count when the last flip was submitted */
 919         unsigned int reset_count;
 920
 921         /* Access to these should be protected by dev_priv->irq_lock. */
 922         bool cpu_fifo_underrun_disabled;
 923         bool pch_fifo_underrun_disabled;
 924
 925         /* per-pipe watermark state */
 926         struct {
 927                 /* watermarks currently being used  */
 928                 union {
 929                         struct intel_pipe_wm ilk;
 930                         struct vlv_wm_state vlv;
 931                         struct g4x_wm_state g4x;
 932                 } active;
 933         } wm;
 934
 935         int scanline_offset;
 936
 937         struct {
 938                 unsigned start_vbl_count;
 939                 ktime_t start_vbl_time;
 940                 int min_vbl, max_vbl;
 941                 int scanline_start;
 942         } debug;
 943
 944         /* scalers available on this crtc */
 945         int num_scalers;
 946 };
 947
 948 struct intel_plane {
 949         struct drm_plane base;
 950         enum i9xx_plane_id i9xx_plane;
 951         enum plane_id id;
 952         enum pipe pipe;
 953         bool can_scale;
 954         bool has_fbc;
 955         bool has_ccs;
 956         int max_downscale;
 957         uint32_t frontbuffer_bit;
 958
 959         struct {
 960                 u32 base, cntl, size;
 961         } cursor;
 962
 963         /*
 964          * NOTE: Do not place new plane state fields here (e.g., when adding
 965          * new plane properties).  New runtime state should now be placed in
 966          * the intel_plane_state structure and accessed via plane_state.
 967          */
 968
 969         void (*update_plane)(struct intel_plane *plane,
 970                              const struct intel_crtc_state *crtc_state,
 971                              const struct intel_plane_state *plane_state);
 972         void (*disable_plane)(struct intel_plane *plane,
 973                               struct intel_crtc *crtc);
 974         bool (*get_hw_state)(struct intel_plane *plane, enum pipe *pipe);
 975         int (*check_plane)(struct intel_plane *plane,
 976                            struct intel_crtc_state *crtc_state,
 977                            struct intel_plane_state *state);
 978 };
 979
 980 struct intel_watermark_params {
 981         u16 fifo_size;
 982         u16 max_wm;
 983         u8 default_wm;
 984         u8 guard_size;
 985         u8 cacheline_size;
 986 };
 987
 988 struct cxsr_latency {
 989         bool is_desktop : 1;
 990         bool is_ddr3 : 1;
 991         u16 fsb_freq;
 992         u16 mem_freq;
 993         u16 display_sr;
 994         u16 display_hpll_disable;
 995         u16 cursor_sr;
 996         u16 cursor_hpll_disable;
 997 };
 998
 999 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
1000 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
1001 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
1002 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
1003 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
1004 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
1005 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
1006 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
1007 #define intel_fb_obj(x) ((x) ? to_intel_bo((x)->obj[0]) : NULL)
1008
1009 struct intel_hdmi {
1010         i915_reg_t hdmi_reg;
1011         int ddc_bus;
1012         struct {
1013                 enum drm_dp_dual_mode_type type;
1014                 int max_tmds_clock;
1015         } dp_dual_mode;
1016         bool has_hdmi_sink;
1017         bool has_audio;
1018         bool rgb_quant_range_selectable;
1019         struct intel_connector *attached_connector;
1020         struct cec_notifier *cec_notifier;
1021 };
1022
1023 struct intel_dp_mst_encoder;
1024 #define DP_MAX_DOWNSTREAM_PORTS         0x10
1025
1026 /*
1027  * enum link_m_n_set:
1028  *      When platform provides two set of M_N registers for dp, we can
1029  *      program them and switch between them incase of DRRS.
1030  *      But When only one such register is provided, we have to program the
1031  *      required divider value on that registers itself based on the DRRS state.
1032  *
1033  * M1_N1        : Program dp_m_n on M1_N1 registers
1034  *                        dp_m2_n2 on M2_N2 registers (If supported)
1035  *
1036  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
1037  *                        M2_N2 registers are not supported
1038  */
1039
1040 enum link_m_n_set {
1041         /* Sets the m1_n1 and m2_n2 */
1042         M1_N1 = 0,
1043         M2_N2
1044 };
1045
1046 struct intel_dp_compliance_data {
1047         unsigned long edid;
1048         uint8_t video_pattern;
1049         uint16_t hdisplay, vdisplay;
1050         uint8_t bpc;
1051 };
1052
1053 struct intel_dp_compliance {
1054         unsigned long test_type;
1055         struct intel_dp_compliance_data test_data;
1056         bool test_active;
1057         int test_link_rate;
1058         u8 test_lane_count;
1059 };
1060
1061 struct intel_dp {
1062         i915_reg_t output_reg;
1063         uint32_t DP;
1064         int link_rate;
1065         uint8_t lane_count;
1066         uint8_t sink_count;
1067         bool link_mst;
1068         bool link_trained;
1069         bool has_audio;
1070         bool detect_done;
1071         bool reset_link_params;
1072         enum aux_ch aux_ch;
1073         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
1074         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
1075         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
1076         uint8_t edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE];
1077         /* source rates */
1078         int num_source_rates;
1079         const int *source_rates;
1080         /* sink rates as reported by DP_MAX_LINK_RATE/DP_SUPPORTED_LINK_RATES */
1081         int num_sink_rates;
1082         int sink_rates[DP_MAX_SUPPORTED_RATES];
1083         bool use_rate_select;
1084         /* intersection of source and sink rates */
1085         int num_common_rates;
1086         int common_rates[DP_MAX_SUPPORTED_RATES];
1087         /* Max lane count for the current link */
1088         int max_link_lane_count;
1089         /* Max rate for the current link */
1090         int max_link_rate;
1091         /* sink or branch descriptor */
1092         struct drm_dp_desc desc;
1093         struct drm_dp_aux aux;
1094         enum intel_display_power_domain aux_power_domain;
1095         uint8_t train_set[4];
1096         int panel_power_up_delay;
1097         int panel_power_down_delay;
1098         int panel_power_cycle_delay;
1099         int backlight_on_delay;
1100         int backlight_off_delay;
1101         struct delayed_work panel_vdd_work;
1102         bool want_panel_vdd;
1103         unsigned long last_power_on;
1104         unsigned long last_backlight_off;
1105         ktime_t panel_power_off_time;
1106
1107         struct notifier_block edp_notifier;
1108
1109         /*
1110          * Pipe whose power sequencer is currently locked into
1111          * this port. Only relevant on VLV/CHV.
1112          */
1113         enum pipe pps_pipe;
1114         /*
1115          * Pipe currently driving the port. Used for preventing
1116          * the use of the PPS for any pipe currentrly driving
1117          * external DP as that will mess things up on VLV.
1118          */
1119         enum pipe active_pipe;
1120         /*
1121          * Set if the sequencer may be reset due to a power transition,
1122          * requiring a reinitialization. Only relevant on BXT.
1123          */
1124         bool pps_reset;
1125         struct edp_power_seq pps_delays;
1126
1127         bool can_mst; /* this port supports mst */
1128         bool is_mst;
1129         int active_mst_links;
1130         /* connector directly attached - won't be use for modeset in mst world */
1131         struct intel_connector *attached_connector;
1132
1133         /* mst connector list */
1134         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
1135         struct drm_dp_mst_topology_mgr mst_mgr;
1136
1137         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
1138         /*
1139          * This function returns the value we have to program the AUX_CTL
1140          * register with to kick off an AUX transaction.
1141          */
1142         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
1143                                      int send_bytes,
1144                                      uint32_t aux_clock_divider);
1145
1146         i915_reg_t (*aux_ch_ctl_reg)(struct intel_dp *dp);
1147         i915_reg_t (*aux_ch_data_reg)(struct intel_dp *dp, int index);
1148
1149         /* This is called before a link training is starterd */
1150         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
1151
1152         /* Displayport compliance testing */
1153         struct intel_dp_compliance compliance;
1154 };
1155
1156 struct intel_lspcon {
1157         bool active;
1158         enum drm_lspcon_mode mode;
1159 };
1160
1161 struct intel_digital_port {
1162         struct intel_encoder base;
1163         u32 saved_port_bits;
1164         struct intel_dp dp;
1165         struct intel_hdmi hdmi;
1166         struct intel_lspcon lspcon;
1167         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
1168         bool release_cl2_override;
1169         uint8_t max_lanes;
1170         enum intel_display_power_domain ddi_io_power_domain;
1171
1172         void (*write_infoframe)(struct drm_encoder *encoder,
1173                                 const struct intel_crtc_state *crtc_state,
1174                                 unsigned int type,
1175                                 const void *frame, ssize_t len);
1176         void (*set_infoframes)(struct drm_encoder *encoder,
1177                                bool enable,
1178                                const struct intel_crtc_state *crtc_state,
1179                                const struct drm_connector_state *conn_state);
1180         bool (*infoframe_enabled)(struct drm_encoder *encoder,
1181                                   const struct intel_crtc_state *pipe_config);
1182 };
1183
1184 struct intel_dp_mst_encoder {
1185         struct intel_encoder base;
1186         enum pipe pipe;
1187         struct intel_digital_port *primary;
1188         struct intel_connector *connector;
1189 };
1190
1191 static inline enum dpio_channel
1192 vlv_dport_to_channel(struct intel_digital_port *dport)
1193 {
1194         switch (dport->base.port) {
1195         case PORT_B:
1196         case PORT_D:
1197                 return DPIO_CH0;
1198         case PORT_C:
1199                 return DPIO_CH1;
1200         default:
1201                 BUG();
1202         }
1203 }
1204
1205 static inline enum dpio_phy
1206 vlv_dport_to_phy(struct intel_digital_port *dport)
1207 {
1208         switch (dport->base.port) {
1209         case PORT_B:
1210         case PORT_C:
1211                 return DPIO_PHY0;
1212         case PORT_D:
1213                 return DPIO_PHY1;
1214         default:
1215                 BUG();
1216         }
1217 }
1218
1219 static inline enum dpio_channel
1220 vlv_pipe_to_channel(enum pipe pipe)
1221 {
1222         switch (pipe) {
1223         case PIPE_A:
1224         case PIPE_C:
1225                 return DPIO_CH0;
1226         case PIPE_B:
1227                 return DPIO_CH1;
1228         default:
1229                 BUG();
1230         }
1231 }
1232
1233 static inline struct intel_crtc *
1234 intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
1235 {
1236         return dev_priv->pipe_to_crtc_mapping[pipe];
1237 }
1238
1239 static inline struct intel_crtc *
1240 intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum i9xx_plane_id plane)
1241 {
1242         return dev_priv->plane_to_crtc_mapping[plane];
1243 }
1244
1245 struct intel_load_detect_pipe {
1246         struct drm_atomic_state *restore_state;
1247 };
1248
1249 static inline struct intel_encoder *
1250 intel_attached_encoder(struct drm_connector *connector)
1251 {
1252         return to_intel_connector(connector)->encoder;
1253 }
1254
1255 static inline bool intel_encoder_is_dig_port(struct intel_encoder *encoder)
1256 {
1257         switch (encoder->type) {
1258         case INTEL_OUTPUT_DDI:
1259         case INTEL_OUTPUT_DP:
1260         case INTEL_OUTPUT_EDP:
1261         case INTEL_OUTPUT_HDMI:
1262                 return true;
1263         default:
1264                 return false;
1265         }
1266 }
1267
1268 static inline struct intel_digital_port *
1269 enc_to_dig_port(struct drm_encoder *encoder)
1270 {
1271         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
1272
1273         if (intel_encoder_is_dig_port(intel_encoder))
1274                 return container_of(encoder, struct intel_digital_port,
1275                                     base.base);
1276         else
1277                 return NULL;
1278 }
1279
1280 static inline struct intel_dp_mst_encoder *
1281 enc_to_mst(struct drm_encoder *encoder)
1282 {
1283         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
1284 }
1285
1286 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
1287 {
1288         return &enc_to_dig_port(encoder)->dp;
1289 }
1290
1291 static inline bool intel_encoder_is_dp(struct intel_encoder *encoder)
1292 {
1293         switch (encoder->type) {
1294         case INTEL_OUTPUT_DP:
1295         case INTEL_OUTPUT_EDP:
1296                 return true;
1297         case INTEL_OUTPUT_DDI:
1298                 /* Skip pure HDMI/DVI DDI encoders */
1299                 return i915_mmio_reg_valid(enc_to_intel_dp(&encoder->base)->output_reg);
1300         default:
1301                 return false;
1302         }
1303 }
1304
1305 static inline struct intel_digital_port *
1306 dp_to_dig_port(struct intel_dp *intel_dp)
1307 {
1308         return container_of(intel_dp, struct intel_digital_port, dp);
1309 }
1310
1311 static inline struct intel_lspcon *
1312 dp_to_lspcon(struct intel_dp *intel_dp)
1313 {
1314         return &dp_to_dig_port(intel_dp)->lspcon;
1315 }
1316
1317 static inline struct intel_digital_port *
1318 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
1319 {
1320         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1321 }
1322
1323 static inline struct intel_plane_state *
1324 intel_atomic_get_new_plane_state(struct intel_atomic_state *state,
1325                                  struct intel_plane *plane)
1326 {
1327         return to_intel_plane_state(drm_atomic_get_new_plane_state(&state->base,
1328                                                                    &plane->base));
1329 }
1330
1331 static inline struct intel_crtc_state *
1332 intel_atomic_get_old_crtc_state(struct intel_atomic_state *state,
1333                                 struct intel_crtc *crtc)
1334 {
1335         return to_intel_crtc_state(drm_atomic_get_old_crtc_state(&state->base,
1336                                                                  &crtc->base));
1337 }
1338
1339 static inline struct intel_crtc_state *
1340 intel_atomic_get_new_crtc_state(struct intel_atomic_state *state,
1341                                 struct intel_crtc *crtc)
1342 {
1343         return to_intel_crtc_state(drm_atomic_get_new_crtc_state(&state->base,
1344                                                                  &crtc->base));
1345 }
1346
1347 /* intel_fifo_underrun.c */
1348 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1349                                            enum pipe pipe, bool enable);
1350 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1351                                            enum pipe pch_transcoder,
1352                                            bool enable);
1353 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1354                                          enum pipe pipe);
1355 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1356                                          enum pipe pch_transcoder);
1357 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1358 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1359
1360 /* i915_irq.c */
1361 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1362 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1363 void gen6_mask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1364 void gen6_unmask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1365 void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1366 void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1367 void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
1368 void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
1369
1370 static inline u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915,
1371                                             u32 mask)
1372 {
1373         return mask & ~i915->gt_pm.rps.pm_intrmsk_mbz;
1374 }
1375
1376 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1377 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1378 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1379 {
1380         /*
1381          * We only use drm_irq_uninstall() at unload and VT switch, so
1382          * this is the only thing we need to check.
1383          */
1384         return dev_priv->runtime_pm.irqs_enabled;
1385 }
1386
1387 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1388 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1389                                      u8 pipe_mask);
1390 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1391                                      u8 pipe_mask);
1392 void gen9_reset_guc_interrupts(struct drm_i915_private *dev_priv);
1393 void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv);
1394 void gen9_disable_guc_interrupts(struct drm_i915_private *dev_priv);
1395
1396 /* intel_crt.c */
1397 bool intel_crt_port_enabled(struct drm_i915_private *dev_priv,
1398                             i915_reg_t adpa_reg, enum pipe *pipe);
1399 void intel_crt_init(struct drm_i915_private *dev_priv);
1400 void intel_crt_reset(struct drm_encoder *encoder);
1401
1402 /* intel_ddi.c */
1403 void intel_ddi_fdi_post_disable(struct intel_encoder *intel_encoder,
1404                                 const struct intel_crtc_state *old_crtc_state,
1405                                 const struct drm_connector_state *old_conn_state);
1406 void hsw_fdi_link_train(struct intel_crtc *crtc,
1407                         const struct intel_crtc_state *crtc_state);
1408 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
1409 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1410 void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
1411 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
1412 void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
1413 void intel_ddi_disable_pipe_clock(const  struct intel_crtc_state *crtc_state);
1414 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state);
1415 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1416 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1417 void intel_ddi_get_config(struct intel_encoder *encoder,
1418                           struct intel_crtc_state *pipe_config);
1419
1420 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
1421                                     bool state);
1422 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
1423                                          struct intel_crtc_state *crtc_state);
1424 u32 bxt_signal_levels(struct intel_dp *intel_dp);
1425 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1426 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder);
1427 u8 intel_ddi_dp_pre_emphasis_max(struct intel_encoder *encoder,
1428                                  u8 voltage_swing);
1429 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
1430                                      bool enable);
1431 void icl_map_plls_to_ports(struct drm_crtc *crtc,
1432                            struct intel_crtc_state *crtc_state,
1433                            struct drm_atomic_state *old_state);
1434 void icl_unmap_plls_to_ports(struct drm_crtc *crtc,
1435                              struct intel_crtc_state *crtc_state,
1436                              struct drm_atomic_state *old_state);
1437
1438 unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
1439                                    int plane, unsigned int height);
1440
1441 /* intel_audio.c */
1442 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1443 void intel_audio_codec_enable(struct intel_encoder *encoder,
1444                               const struct intel_crtc_state *crtc_state,
1445                               const struct drm_connector_state *conn_state);
1446 void intel_audio_codec_disable(struct intel_encoder *encoder,
1447                                const struct intel_crtc_state *old_crtc_state,
1448                                const struct drm_connector_state *old_conn_state);
1449 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1450 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1451 void intel_audio_init(struct drm_i915_private *dev_priv);
1452 void intel_audio_deinit(struct drm_i915_private *dev_priv);
1453
1454 /* intel_cdclk.c */
1455 int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state);
1456 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1457 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1458 void cnl_init_cdclk(struct drm_i915_private *dev_priv);
1459 void cnl_uninit_cdclk(struct drm_i915_private *dev_priv);
1460 void bxt_init_cdclk(struct drm_i915_private *dev_priv);
1461 void bxt_uninit_cdclk(struct drm_i915_private *dev_priv);
1462 void icl_init_cdclk(struct drm_i915_private *dev_priv);
1463 void icl_uninit_cdclk(struct drm_i915_private *dev_priv);
1464 void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv);
1465 void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
1466 void intel_update_cdclk(struct drm_i915_private *dev_priv);
1467 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1468 bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
1469                                const struct intel_cdclk_state *b);
1470 bool intel_cdclk_changed(const struct intel_cdclk_state *a,
1471                          const struct intel_cdclk_state *b);
1472 void intel_set_cdclk(struct drm_i915_private *dev_priv,
1473                      const struct intel_cdclk_state *cdclk_state);
1474 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
1475                             const char *context);
1476
1477 /* intel_display.c */
1478 void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1479 void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1480 enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc);
1481 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1482 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
1483 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1484                       const char *name, u32 reg, int ref_freq);
1485 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
1486                            const char *name, u32 reg);
1487 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
1488 void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
1489 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1490 unsigned int intel_fb_xy_to_linear(int x, int y,
1491                                    const struct intel_plane_state *state,
1492                                    int plane);
1493 void intel_add_fb_offsets(int *x, int *y,
1494                           const struct intel_plane_state *state, int plane);
1495 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1496 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
1497 void intel_mark_busy(struct drm_i915_private *dev_priv);
1498 void intel_mark_idle(struct drm_i915_private *dev_priv);
1499 int intel_display_suspend(struct drm_device *dev);
1500 void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv);
1501 void intel_encoder_destroy(struct drm_encoder *encoder);
1502 int intel_connector_init(struct intel_connector *);
1503 struct intel_connector *intel_connector_alloc(void);
1504 void intel_connector_free(struct intel_connector *connector);
1505 bool intel_connector_get_hw_state(struct intel_connector *connector);
1506 void intel_connector_attach_encoder(struct intel_connector *connector,
1507                                     struct intel_encoder *encoder);
1508 struct drm_display_mode *
1509 intel_encoder_current_mode(struct intel_encoder *encoder);
1510 bool intel_port_is_tc(struct drm_i915_private *dev_priv, enum port port);
1511 enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv,
1512                               enum port port);
1513
1514 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1515 int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
1516                                       struct drm_file *file_priv);
1517 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1518                                              enum pipe pipe);
1519 static inline bool
1520 intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
1521                     enum intel_output_type type)
1522 {
1523         return crtc_state->output_types & (1 << type);
1524 }
1525 static inline bool
1526 intel_crtc_has_dp_encoder(const struct intel_crtc_state *crtc_state)
1527 {
1528         return crtc_state->output_types &
1529                 ((1 << INTEL_OUTPUT_DP) |
1530                  (1 << INTEL_OUTPUT_DP_MST) |
1531                  (1 << INTEL_OUTPUT_EDP));
1532 }
1533 static inline void
1534 intel_wait_for_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
1535 {
1536         drm_wait_one_vblank(&dev_priv->drm, pipe);
1537 }
1538 static inline void
1539 intel_wait_for_vblank_if_active(struct drm_i915_private *dev_priv, int pipe)
1540 {
1541         const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
1542
1543         if (crtc->active)
1544                 intel_wait_for_vblank(dev_priv, pipe);
1545 }
1546
1547 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
1548
1549 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1550 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1551                          struct intel_digital_port *dport,
1552                          unsigned int expected_mask);
1553 int intel_get_load_detect_pipe(struct drm_connector *connector,
1554                                const struct drm_display_mode *mode,
1555                                struct intel_load_detect_pipe *old,
1556                                struct drm_modeset_acquire_ctx *ctx);
1557 void intel_release_load_detect_pipe(struct drm_connector *connector,
1558                                     struct intel_load_detect_pipe *old,
1559                                     struct drm_modeset_acquire_ctx *ctx);
1560 struct i915_vma *
1561 intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
1562                            unsigned int rotation,
1563                            bool uses_fence,
1564                            unsigned long *out_flags);
1565 void intel_unpin_fb_vma(struct i915_vma *vma, unsigned long flags);
1566 struct drm_framebuffer *
1567 intel_framebuffer_create(struct drm_i915_gem_object *obj,
1568                          struct drm_mode_fb_cmd2 *mode_cmd);
1569 int intel_prepare_plane_fb(struct drm_plane *plane,
1570                            struct drm_plane_state *new_state);
1571 void intel_cleanup_plane_fb(struct drm_plane *plane,
1572                             struct drm_plane_state *old_state);
1573 int intel_plane_atomic_get_property(struct drm_plane *plane,
1574                                     const struct drm_plane_state *state,
1575                                     struct drm_property *property,
1576                                     uint64_t *val);
1577 int intel_plane_atomic_set_property(struct drm_plane *plane,
1578                                     struct drm_plane_state *state,
1579                                     struct drm_property *property,
1580                                     uint64_t val);
1581 int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state,
1582                                     struct drm_crtc_state *crtc_state,
1583                                     const struct intel_plane_state *old_plane_state,
1584                                     struct drm_plane_state *plane_state);
1585
1586 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1587                                     enum pipe pipe);
1588
1589 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
1590                      const struct dpll *dpll);
1591 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
1592 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1593
1594 /* modesetting asserts */
1595 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1596                            enum pipe pipe);
1597 void assert_pll(struct drm_i915_private *dev_priv,
1598                 enum pipe pipe, bool state);
1599 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1600 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1601 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1602 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1603 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1604 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1605                        enum pipe pipe, bool state);
1606 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1607 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1608 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1609 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1610 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1611 u32 intel_compute_tile_offset(int *x, int *y,
1612                               const struct intel_plane_state *state, int plane);
1613 void intel_prepare_reset(struct drm_i915_private *dev_priv);
1614 void intel_finish_reset(struct drm_i915_private *dev_priv);
1615 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1616 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1617 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1618 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1619 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1620 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1621 unsigned int skl_cdclk_get_vco(unsigned int freq);
1622 void intel_dp_get_m_n(struct intel_crtc *crtc,
1623                       struct intel_crtc_state *pipe_config);
1624 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1625 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1626 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1627                         struct dpll *best_clock);
1628 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
1629
1630 bool intel_crtc_active(struct intel_crtc *crtc);
1631 bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state);
1632 void hsw_enable_ips(const struct intel_crtc_state *crtc_state);
1633 void hsw_disable_ips(const struct intel_crtc_state *crtc_state);
1634 enum intel_display_power_domain intel_port_to_power_domain(enum port port);
1635 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1636                                  struct intel_crtc_state *pipe_config);
1637 void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
1638                                   struct intel_crtc_state *crtc_state);
1639
1640 u16 skl_scaler_calc_phase(int sub, bool chroma_center);
1641 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1642 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state,
1643                   uint32_t pixel_format);
1644
1645 static inline u32 intel_plane_ggtt_offset(const struct intel_plane_state *state)
1646 {
1647         return i915_ggtt_offset(state->vma);
1648 }
1649
1650 u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state,
1651                         const struct intel_plane_state *plane_state);
1652 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
1653                   const struct intel_plane_state *plane_state);
1654 u32 glk_color_ctl(const struct intel_plane_state *plane_state);
1655 u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
1656                      unsigned int rotation);
1657 int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
1658                             struct intel_plane_state *plane_state);
1659 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
1660 int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
1661
1662 /* intel_csr.c */
1663 void intel_csr_ucode_init(struct drm_i915_private *);
1664 void intel_csr_load_program(struct drm_i915_private *);
1665 void intel_csr_ucode_fini(struct drm_i915_private *);
1666 void intel_csr_ucode_suspend(struct drm_i915_private *);
1667 void intel_csr_ucode_resume(struct drm_i915_private *);
1668
1669 /* intel_dp.c */
1670 bool intel_dp_port_enabled(struct drm_i915_private *dev_priv,
1671                            i915_reg_t dp_reg, enum port port,
1672                            enum pipe *pipe);
1673 bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
1674                    enum port port);
1675 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1676                              struct intel_connector *intel_connector);
1677 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1678                               int link_rate, uint8_t lane_count,
1679                               bool link_mst);
1680 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
1681                                             int link_rate, uint8_t lane_count);
1682 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1683 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1684 int intel_dp_retrain_link(struct intel_encoder *encoder,
1685                           struct drm_modeset_acquire_ctx *ctx);
1686 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1687 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1688 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1689 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1690 bool intel_dp_compute_config(struct intel_encoder *encoder,
1691                              struct intel_crtc_state *pipe_config,
1692                              struct drm_connector_state *conn_state);
1693 bool intel_dp_is_edp(struct intel_dp *intel_dp);
1694 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
1695 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1696                                   bool long_hpd);
1697 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
1698                             const struct drm_connector_state *conn_state);
1699 void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
1700 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1701 void intel_edp_panel_on(struct intel_dp *intel_dp);
1702 void intel_edp_panel_off(struct intel_dp *intel_dp);
1703 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
1704 void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
1705 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1706 int intel_dp_max_lane_count(struct intel_dp *intel_dp);
1707 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1708 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1709 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
1710 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1711 void intel_plane_destroy(struct drm_plane *plane);
1712 void intel_edp_drrs_enable(struct intel_dp *intel_dp,
1713                            const struct intel_crtc_state *crtc_state);
1714 void intel_edp_drrs_disable(struct intel_dp *intel_dp,
1715                             const struct intel_crtc_state *crtc_state);
1716 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
1717                                unsigned int frontbuffer_bits);
1718 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
1719                           unsigned int frontbuffer_bits);
1720
1721 void
1722 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1723                                        uint8_t dp_train_pat);
1724 void
1725 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1726 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1727 uint8_t
1728 intel_dp_voltage_max(struct intel_dp *intel_dp);
1729 uint8_t
1730 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1731 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1732                            uint8_t *link_bw, uint8_t *rate_select);
1733 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1734 bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp);
1735 bool
1736 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1737
1738 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
1739 {
1740         return ~((1 << lane_count) - 1) & 0xf;
1741 }
1742
1743 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
1744 int intel_dp_link_required(int pixel_clock, int bpp);
1745 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
1746 bool intel_digital_port_connected(struct intel_encoder *encoder);
1747
1748 /* intel_dp_aux_backlight.c */
1749 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
1750
1751 /* intel_dp_mst.c */
1752 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1753 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1754 /* vlv_dsi.c */
1755 void vlv_dsi_init(struct drm_i915_private *dev_priv);
1756
1757 /* intel_dsi_dcs_backlight.c */
1758 int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
1759
1760 /* intel_dvo.c */
1761 void intel_dvo_init(struct drm_i915_private *dev_priv);
1762 /* intel_hotplug.c */
1763 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
1764 bool intel_encoder_hotplug(struct intel_encoder *encoder,
1765                            struct intel_connector *connector);
1766
1767 /* legacy fbdev emulation in intel_fbdev.c */
1768 #ifdef CONFIG_DRM_FBDEV_EMULATION
1769 extern int intel_fbdev_init(struct drm_device *dev);
1770 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1771 extern void intel_fbdev_unregister(struct drm_i915_private *dev_priv);
1772 extern void intel_fbdev_fini(struct drm_i915_private *dev_priv);
1773 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1774 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1775 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1776 #else
1777 static inline int intel_fbdev_init(struct drm_device *dev)
1778 {
1779         return 0;
1780 }
1781
1782 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1783 {
1784 }
1785
1786 static inline void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
1787 {
1788 }
1789
1790 static inline void intel_fbdev_fini(struct drm_i915_private *dev_priv)
1791 {
1792 }
1793
1794 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1795 {
1796 }
1797
1798 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
1799 {
1800 }
1801
1802 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1803 {
1804 }
1805 #endif
1806
1807 /* intel_fbc.c */
1808 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1809                            struct intel_atomic_state *state);
1810 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1811 void intel_fbc_pre_update(struct intel_crtc *crtc,
1812                           struct intel_crtc_state *crtc_state,
1813                           struct intel_plane_state *plane_state);
1814 void intel_fbc_post_update(struct intel_crtc *crtc);
1815 void intel_fbc_init(struct drm_i915_private *dev_priv);
1816 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1817 void intel_fbc_enable(struct intel_crtc *crtc,
1818                       struct intel_crtc_state *crtc_state,
1819                       struct intel_plane_state *plane_state);
1820 void intel_fbc_disable(struct intel_crtc *crtc);
1821 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1822 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1823                           unsigned int frontbuffer_bits,
1824                           enum fb_op_origin origin);
1825 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1826                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1827 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1828 void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
1829 int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv);
1830
1831 /* intel_hdmi.c */
1832 void intel_hdmi_init(struct drm_i915_private *dev_priv, i915_reg_t hdmi_reg,
1833                      enum port port);
1834 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1835                                struct intel_connector *intel_connector);
1836 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1837 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1838                                struct intel_crtc_state *pipe_config,
1839                                struct drm_connector_state *conn_state);
1840 bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
1841                                        struct drm_connector *connector,
1842                                        bool high_tmds_clock_ratio,
1843                                        bool scrambling);
1844 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
1845 void intel_infoframe_init(struct intel_digital_port *intel_dig_port);
1846
1847
1848 /* intel_lvds.c */
1849 bool intel_lvds_port_enabled(struct drm_i915_private *dev_priv,
1850                              i915_reg_t lvds_reg, enum pipe *pipe);
1851 void intel_lvds_init(struct drm_i915_private *dev_priv);
1852 struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev);
1853 bool intel_is_dual_link_lvds(struct drm_device *dev);
1854
1855
1856 /* intel_modes.c */
1857 int intel_connector_update_modes(struct drm_connector *connector,
1858                                  struct edid *edid);
1859 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1860 void intel_attach_force_audio_property(struct drm_connector *connector);
1861 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1862 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1863
1864
1865 /* intel_overlay.c */
1866 void intel_setup_overlay(struct drm_i915_private *dev_priv);
1867 void intel_cleanup_overlay(struct drm_i915_private *dev_priv);
1868 int intel_overlay_switch_off(struct intel_overlay *overlay);
1869 int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
1870                                   struct drm_file *file_priv);
1871 int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
1872                               struct drm_file *file_priv);
1873 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1874
1875
1876 /* intel_panel.c */
1877 int intel_panel_init(struct intel_panel *panel,
1878                      struct drm_display_mode *fixed_mode,
1879                      struct drm_display_mode *downclock_mode);
1880 void intel_panel_fini(struct intel_panel *panel);
1881 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1882                             struct drm_display_mode *adjusted_mode);
1883 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1884                              struct intel_crtc_state *pipe_config,
1885                              int fitting_mode);
1886 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1887                               struct intel_crtc_state *pipe_config,
1888                               int fitting_mode);
1889 void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
1890                                     u32 level, u32 max);
1891 int intel_panel_setup_backlight(struct drm_connector *connector,
1892                                 enum pipe pipe);
1893 void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
1894                                   const struct drm_connector_state *conn_state);
1895 void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
1896 void intel_panel_destroy_backlight(struct drm_connector *connector);
1897 extern struct drm_display_mode *intel_find_panel_downclock(
1898                                 struct drm_i915_private *dev_priv,
1899                                 struct drm_display_mode *fixed_mode,
1900                                 struct drm_connector *connector);
1901
1902 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
1903 int intel_backlight_device_register(struct intel_connector *connector);
1904 void intel_backlight_device_unregister(struct intel_connector *connector);
1905 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1906 static inline int intel_backlight_device_register(struct intel_connector *connector)
1907 {
1908         return 0;
1909 }
1910 static inline void intel_backlight_device_unregister(struct intel_connector *connector)
1911 {
1912 }
1913 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1914
1915 /* intel_hdcp.c */
1916 void intel_hdcp_atomic_check(struct drm_connector *connector,
1917                              struct drm_connector_state *old_state,
1918                              struct drm_connector_state *new_state);
1919 int intel_hdcp_init(struct intel_connector *connector,
1920                     const struct intel_hdcp_shim *hdcp_shim);
1921 int intel_hdcp_enable(struct intel_connector *connector);
1922 int intel_hdcp_disable(struct intel_connector *connector);
1923 int intel_hdcp_check_link(struct intel_connector *connector);
1924 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
1925
1926 /* intel_psr.c */
1927 #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
1928 void intel_psr_init_dpcd(struct intel_dp *intel_dp);
1929 void intel_psr_enable(struct intel_dp *intel_dp,
1930                       const struct intel_crtc_state *crtc_state);
1931 void intel_psr_disable(struct intel_dp *intel_dp,
1932                       const struct intel_crtc_state *old_crtc_state);
1933 void intel_psr_invalidate(struct drm_i915_private *dev_priv,
1934                           unsigned frontbuffer_bits,
1935                           enum fb_op_origin origin);
1936 void intel_psr_flush(struct drm_i915_private *dev_priv,
1937                      unsigned frontbuffer_bits,
1938                      enum fb_op_origin origin);
1939 void intel_psr_init(struct drm_i915_private *dev_priv);
1940 void intel_psr_compute_config(struct intel_dp *intel_dp,
1941                               struct intel_crtc_state *crtc_state);
1942 void intel_psr_irq_control(struct drm_i915_private *dev_priv, bool debug);
1943 void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir);
1944 void intel_psr_short_pulse(struct intel_dp *intel_dp);
1945 int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state);
1946
1947 /* intel_runtime_pm.c */
1948 int intel_power_domains_init(struct drm_i915_private *);
1949 void intel_power_domains_fini(struct drm_i915_private *);
1950 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1951 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1952 void intel_power_domains_verify_state(struct drm_i915_private *dev_priv);
1953 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
1954 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
1955 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1956 const char *
1957 intel_display_power_domain_str(enum intel_display_power_domain domain);
1958
1959 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1960                                     enum intel_display_power_domain domain);
1961 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1962                                       enum intel_display_power_domain domain);
1963 void intel_display_power_get(struct drm_i915_private *dev_priv,
1964                              enum intel_display_power_domain domain);
1965 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1966                                         enum intel_display_power_domain domain);
1967 void intel_display_power_put(struct drm_i915_private *dev_priv,
1968                              enum intel_display_power_domain domain);
1969 void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
1970                             u8 req_slices);
1971
1972 static inline void
1973 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1974 {
1975         WARN_ONCE(dev_priv->runtime_pm.suspended,
1976                   "Device suspended during HW access\n");
1977 }
1978
1979 static inline void
1980 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1981 {
1982         assert_rpm_device_not_suspended(dev_priv);
1983         WARN_ONCE(!atomic_read(&dev_priv->runtime_pm.wakeref_count),
1984                   "RPM wakelock ref not held during HW access");
1985 }
1986
1987 /**
1988  * disable_rpm_wakeref_asserts - disable the RPM assert checks
1989  * @dev_priv: i915 device instance
1990  *
1991  * This function disable asserts that check if we hold an RPM wakelock
1992  * reference, while keeping the device-not-suspended checks still enabled.
1993  * It's meant to be used only in special circumstances where our rule about
1994  * the wakelock refcount wrt. the device power state doesn't hold. According
1995  * to this rule at any point where we access the HW or want to keep the HW in
1996  * an active state we must hold an RPM wakelock reference acquired via one of
1997  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1998  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1999  * forcewake release timer, and the GPU RPS and hangcheck works. All other
2000  * users should avoid using this function.
2001  *
2002  * Any calls to this function must have a symmetric call to
2003  * enable_rpm_wakeref_asserts().
2004  */
2005 static inline void
2006 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
2007 {
2008         atomic_inc(&dev_priv->runtime_pm.wakeref_count);
2009 }
2010
2011 /**
2012  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
2013  * @dev_priv: i915 device instance
2014  *
2015  * This function re-enables the RPM assert checks after disabling them with
2016  * disable_rpm_wakeref_asserts. It's meant to be used only in special
2017  * circumstances otherwise its use should be avoided.
2018  *
2019  * Any calls to this function must have a symmetric call to
2020  * disable_rpm_wakeref_asserts().
2021  */
2022 static inline void
2023 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
2024 {
2025         atomic_dec(&dev_priv->runtime_pm.wakeref_count);
2026 }
2027
2028 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
2029 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
2030 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
2031 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
2032
2033 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
2034
2035 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
2036                              bool override, unsigned int mask);
2037 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
2038                           enum dpio_channel ch, bool override);
2039
2040
2041 /* intel_pm.c */
2042 void intel_init_clock_gating(struct drm_i915_private *dev_priv);
2043 void intel_suspend_hw(struct drm_i915_private *dev_priv);
2044 int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
2045 void intel_update_watermarks(struct intel_crtc *crtc);
2046 void intel_init_pm(struct drm_i915_private *dev_priv);
2047 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
2048 void intel_pm_setup(struct drm_i915_private *dev_priv);
2049 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
2050 void intel_gpu_ips_teardown(void);
2051 void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
2052 void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
2053 void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
2054 void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
2055 void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
2056 void intel_suspend_gt_powersave(struct drm_i915_private *dev_priv);
2057 void gen6_rps_busy(struct drm_i915_private *dev_priv);
2058 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
2059 void gen6_rps_idle(struct drm_i915_private *dev_priv);
2060 void gen6_rps_boost(struct i915_request *rq, struct intel_rps_client *rps);
2061 void g4x_wm_get_hw_state(struct drm_device *dev);
2062 void vlv_wm_get_hw_state(struct drm_device *dev);
2063 void ilk_wm_get_hw_state(struct drm_device *dev);
2064 void skl_wm_get_hw_state(struct drm_device *dev);
2065 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
2066                           struct skl_ddb_allocation *ddb /* out */);
2067 void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
2068                               struct skl_pipe_wm *out);
2069 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
2070 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
2071 bool intel_can_enable_sagv(struct drm_atomic_state *state);
2072 int intel_enable_sagv(struct drm_i915_private *dev_priv);
2073 int intel_disable_sagv(struct drm_i915_private *dev_priv);
2074 bool skl_wm_level_equals(const struct skl_wm_level *l1,
2075                          const struct skl_wm_level *l2);
2076 bool skl_ddb_allocation_overlaps(struct drm_i915_private *dev_priv,
2077                                  const struct skl_ddb_entry **entries,
2078                                  const struct skl_ddb_entry *ddb,
2079                                  int ignore);
2080 bool ilk_disable_lp_wm(struct drm_device *dev);
2081 int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
2082                                   struct intel_crtc_state *cstate);
2083 void intel_init_ipc(struct drm_i915_private *dev_priv);
2084 void intel_enable_ipc(struct drm_i915_private *dev_priv);
2085
2086 /* intel_sdvo.c */
2087 bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv,
2088                              i915_reg_t sdvo_reg, enum pipe *pipe);
2089 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
2090                      i915_reg_t reg, enum port port);
2091
2092
2093 /* intel_sprite.c */
2094 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
2095                              int usecs);
2096 struct intel_plane *intel_sprite_plane_create(struct drm_i915_private *dev_priv,
2097                                               enum pipe pipe, int plane);
2098 int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
2099                                     struct drm_file *file_priv);
2100 void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state);
2101 void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state);
2102 void skl_update_plane(struct intel_plane *plane,
2103                       const struct intel_crtc_state *crtc_state,
2104                       const struct intel_plane_state *plane_state);
2105 void skl_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc);
2106 bool skl_plane_get_hw_state(struct intel_plane *plane, enum pipe *pipe);
2107 bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
2108                        enum pipe pipe, enum plane_id plane_id);
2109 bool skl_plane_has_planar(struct drm_i915_private *dev_priv,
2110                           enum pipe pipe, enum plane_id plane_id);
2111
2112 /* intel_tv.c */
2113 void intel_tv_init(struct drm_i915_private *dev_priv);
2114
2115 /* intel_atomic.c */
2116 int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
2117                                                 const struct drm_connector_state *state,
2118                                                 struct drm_property *property,
2119                                                 uint64_t *val);
2120 int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
2121                                                 struct drm_connector_state *state,
2122                                                 struct drm_property *property,
2123                                                 uint64_t val);
2124 int intel_digital_connector_atomic_check(struct drm_connector *conn,
2125                                          struct drm_connector_state *new_state);
2126 struct drm_connector_state *
2127 intel_digital_connector_duplicate_state(struct drm_connector *connector);
2128
2129 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
2130 void intel_crtc_destroy_state(struct drm_crtc *crtc,
2131                                struct drm_crtc_state *state);
2132 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
2133 void intel_atomic_state_clear(struct drm_atomic_state *);
2134
2135 static inline struct intel_crtc_state *
2136 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
2137                             struct intel_crtc *crtc)
2138 {
2139         struct drm_crtc_state *crtc_state;
2140         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
2141         if (IS_ERR(crtc_state))
2142                 return ERR_CAST(crtc_state);
2143
2144         return to_intel_crtc_state(crtc_state);
2145 }
2146
2147 int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
2148                                struct intel_crtc *intel_crtc,
2149                                struct intel_crtc_state *crtc_state);
2150
2151 /* intel_atomic_plane.c */
2152 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
2153 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
2154 void intel_plane_destroy_state(struct drm_plane *plane,
2155                                struct drm_plane_state *state);
2156 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
2157 int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
2158                                         struct intel_crtc_state *crtc_state,
2159                                         const struct intel_plane_state *old_plane_state,
2160                                         struct intel_plane_state *intel_state);
2161
2162 /* intel_color.c */
2163 void intel_color_init(struct drm_crtc *crtc);
2164 int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
2165 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
2166 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
2167
2168 /* intel_lspcon.c */
2169 bool lspcon_init(struct intel_digital_port *intel_dig_port);
2170 void lspcon_resume(struct intel_lspcon *lspcon);
2171 void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
2172
2173 /* intel_pipe_crc.c */
2174 #ifdef CONFIG_DEBUG_FS
2175 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name,
2176                               size_t *values_cnt);
2177 void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc);
2178 void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc);
2179 #else
2180 #define intel_crtc_set_crc_source NULL
2181 static inline void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc)
2182 {
2183 }
2184
2185 static inline void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc)
2186 {
2187 }
2188 #endif
2189 #endif /* __INTEL_DRV_H__ */