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 <linux/stackdepot.h>
  33 #include <drm/i915_drm.h>
  34 #include "i915_drv.h"
  35 #include <drm/drm_crtc.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_probe_helper.h>
  41 #include <drm/drm_rect.h>
  42 #include <drm/drm_vblank.h>
  43 #include <drm/drm_atomic.h>
  44 #include <media/cec-notifier.h>
  45
  46 struct drm_printer;
  47
  48 /**
  49  * __wait_for - magic wait macro
  50  *
  51  * Macro to help avoid open coding check/wait/timeout patterns. Note that it's
  52  * important that we check the condition again after having timed out, since the
  53  * timeout could be due to preemption or similar and we've never had a chance to
  54  * check the condition before the timeout.
  55  */
  56 #define __wait_for(OP, COND, US, Wmin, Wmax) ({ \
  57         const ktime_t end__ = ktime_add_ns(ktime_get_raw(), 1000ll * (US)); \
  58         long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \
  59         int ret__;                                                      \
  60         might_sleep();                                                  \
  61         for (;;) {                                                      \
  62                 const bool expired__ = ktime_after(ktime_get_raw(), end__); \
  63                 OP;                                                     \
  64                 /* Guarantee COND check prior to timeout */             \
  65                 barrier();                                              \
  66                 if (COND) {                                             \
  67                         ret__ = 0;                                      \
  68                         break;                                          \
  69                 }                                                       \
  70                 if (expired__) {                                        \
  71                         ret__ = -ETIMEDOUT;                             \
  72                         break;                                          \
  73                 }                                                       \
  74                 usleep_range(wait__, wait__ * 2);                       \
  75                 if (wait__ < (Wmax))                                    \
  76                         wait__ <<= 1;                                   \
  77         }                                                               \
  78         ret__;                                                          \
  79 })
  80
  81 #define _wait_for(COND, US, Wmin, Wmax) __wait_for(, (COND), (US), (Wmin), \
  82                                                    (Wmax))
  83 #define wait_for(COND, MS)              _wait_for((COND), (MS) * 1000, 10, 1000)
  84
  85 /* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
  86 #if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
  87 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) WARN_ON_ONCE((ATOMIC) && !in_atomic())
  88 #else
  89 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) do { } while (0)
  90 #endif
  91
  92 #define _wait_for_atomic(COND, US, ATOMIC) \
  93 ({ \
  94         int cpu, ret, timeout = (US) * 1000; \
  95         u64 base; \
  96         _WAIT_FOR_ATOMIC_CHECK(ATOMIC); \
  97         if (!(ATOMIC)) { \
  98                 preempt_disable(); \
  99                 cpu = smp_processor_id(); \
 100         } \
 101         base = local_clock(); \
 102         for (;;) { \
 103                 u64 now = local_clock(); \
 104                 if (!(ATOMIC)) \
 105                         preempt_enable(); \
 106                 /* Guarantee COND check prior to timeout */ \
 107                 barrier(); \
 108                 if (COND) { \
 109                         ret = 0; \
 110                         break; \
 111                 } \
 112                 if (now - base >= timeout) { \
 113                         ret = -ETIMEDOUT; \
 114                         break; \
 115                 } \
 116                 cpu_relax(); \
 117                 if (!(ATOMIC)) { \
 118                         preempt_disable(); \
 119                         if (unlikely(cpu != smp_processor_id())) { \
 120                                 timeout -= now - base; \
 121                                 cpu = smp_processor_id(); \
 122                                 base = local_clock(); \
 123                         } \
 124                 } \
 125         } \
 126         ret; \
 127 })
 128
 129 #define wait_for_us(COND, US) \
 130 ({ \
 131         int ret__; \
 132         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 133         if ((US) > 10) \
 134                 ret__ = _wait_for((COND), (US), 10, 10); \
 135         else \
 136                 ret__ = _wait_for_atomic((COND), (US), 0); \
 137         ret__; \
 138 })
 139
 140 #define wait_for_atomic_us(COND, US) \
 141 ({ \
 142         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 143         BUILD_BUG_ON((US) > 50000); \
 144         _wait_for_atomic((COND), (US), 1); \
 145 })
 146
 147 #define wait_for_atomic(COND, MS) wait_for_atomic_us((COND), (MS) * 1000)
 148
 149 #define KHz(x) (1000 * (x))
 150 #define MHz(x) KHz(1000 * (x))
 151
 152 #define KBps(x) (1000 * (x))
 153 #define MBps(x) KBps(1000 * (x))
 154 #define GBps(x) ((u64)1000 * MBps((x)))
 155
 156 /*
 157  * Display related stuff
 158  */
 159
 160 /* store information about an Ixxx DVO */
 161 /* The i830->i865 use multiple DVOs with multiple i2cs */
 162 /* the i915, i945 have a single sDVO i2c bus - which is different */
 163 #define MAX_OUTPUTS 6
 164 /* maximum connectors per crtcs in the mode set */
 165
 166 #define INTEL_I2C_BUS_DVO 1
 167 #define INTEL_I2C_BUS_SDVO 2
 168
 169 /* these are outputs from the chip - integrated only
 170    external chips are via DVO or SDVO output */
 171 enum intel_output_type {
 172         INTEL_OUTPUT_UNUSED = 0,
 173         INTEL_OUTPUT_ANALOG = 1,
 174         INTEL_OUTPUT_DVO = 2,
 175         INTEL_OUTPUT_SDVO = 3,
 176         INTEL_OUTPUT_LVDS = 4,
 177         INTEL_OUTPUT_TVOUT = 5,
 178         INTEL_OUTPUT_HDMI = 6,
 179         INTEL_OUTPUT_DP = 7,
 180         INTEL_OUTPUT_EDP = 8,
 181         INTEL_OUTPUT_DSI = 9,
 182         INTEL_OUTPUT_DDI = 10,
 183         INTEL_OUTPUT_DP_MST = 11,
 184 };
 185
 186 #define INTEL_DVO_CHIP_NONE 0
 187 #define INTEL_DVO_CHIP_LVDS 1
 188 #define INTEL_DVO_CHIP_TMDS 2
 189 #define INTEL_DVO_CHIP_TVOUT 4
 190
 191 #define INTEL_DSI_VIDEO_MODE    0
 192 #define INTEL_DSI_COMMAND_MODE  1
 193
 194 struct intel_framebuffer {
 195         struct drm_framebuffer base;
 196         struct intel_rotation_info rot_info;
 197
 198         /* for each plane in the normal GTT view */
 199         struct {
 200                 unsigned int x, y;
 201         } normal[2];
 202         /* for each plane in the rotated GTT view */
 203         struct {
 204                 unsigned int x, y;
 205                 unsigned int pitch; /* pixels */
 206         } rotated[2];
 207 };
 208
 209 struct intel_fbdev {
 210         struct drm_fb_helper helper;
 211         struct intel_framebuffer *fb;
 212         struct i915_vma *vma;
 213         unsigned long vma_flags;
 214         async_cookie_t cookie;
 215         int preferred_bpp;
 216
 217         /* Whether or not fbdev hpd processing is temporarily suspended */
 218         bool hpd_suspended : 1;
 219         /* Set when a hotplug was received while HPD processing was
 220          * suspended
 221          */
 222         bool hpd_waiting : 1;
 223
 224         /* Protects hpd_suspended */
 225         struct mutex hpd_lock;
 226 };
 227
 228 struct intel_encoder {
 229         struct drm_encoder base;
 230
 231         enum intel_output_type type;
 232         enum port port;
 233         unsigned int cloneable;
 234         bool (*hotplug)(struct intel_encoder *encoder,
 235                         struct intel_connector *connector);
 236         enum intel_output_type (*compute_output_type)(struct intel_encoder *,
 237                                                       struct intel_crtc_state *,
 238                                                       struct drm_connector_state *);
 239         int (*compute_config)(struct intel_encoder *,
 240                               struct intel_crtc_state *,
 241                               struct drm_connector_state *);
 242         void (*pre_pll_enable)(struct intel_encoder *,
 243                                const struct intel_crtc_state *,
 244                                const struct drm_connector_state *);
 245         void (*pre_enable)(struct intel_encoder *,
 246                            const struct intel_crtc_state *,
 247                            const struct drm_connector_state *);
 248         void (*enable)(struct intel_encoder *,
 249                        const struct intel_crtc_state *,
 250                        const struct drm_connector_state *);
 251         void (*disable)(struct intel_encoder *,
 252                         const struct intel_crtc_state *,
 253                         const struct drm_connector_state *);
 254         void (*post_disable)(struct intel_encoder *,
 255                              const struct intel_crtc_state *,
 256                              const struct drm_connector_state *);
 257         void (*post_pll_disable)(struct intel_encoder *,
 258                                  const struct intel_crtc_state *,
 259                                  const struct drm_connector_state *);
 260         void (*update_pipe)(struct intel_encoder *,
 261                             const struct intel_crtc_state *,
 262                             const struct drm_connector_state *);
 263         /* Read out the current hw state of this connector, returning true if
 264          * the encoder is active. If the encoder is enabled it also set the pipe
 265          * it is connected to in the pipe parameter. */
 266         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 267         /* Reconstructs the equivalent mode flags for the current hardware
 268          * state. This must be called _after_ display->get_pipe_config has
 269          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 270          * be set correctly before calling this function. */
 271         void (*get_config)(struct intel_encoder *,
 272                            struct intel_crtc_state *pipe_config);
 273         /* Returns a mask of power domains that need to be referenced as part
 274          * of the hardware state readout code. */
 275         u64 (*get_power_domains)(struct intel_encoder *encoder,
 276                                  struct intel_crtc_state *crtc_state);
 277         /*
 278          * Called during system suspend after all pending requests for the
 279          * encoder are flushed (for example for DP AUX transactions) and
 280          * device interrupts are disabled.
 281          */
 282         void (*suspend)(struct intel_encoder *);
 283         int crtc_mask;
 284         enum hpd_pin hpd_pin;
 285         enum intel_display_power_domain power_domain;
 286         /* for communication with audio component; protected by av_mutex */
 287         const struct drm_connector *audio_connector;
 288 };
 289
 290 struct intel_panel {
 291         struct drm_display_mode *fixed_mode;
 292         struct drm_display_mode *downclock_mode;
 293
 294         /* backlight */
 295         struct {
 296                 bool present;
 297                 u32 level;
 298                 u32 min;
 299                 u32 max;
 300                 bool enabled;
 301                 bool combination_mode;  /* gen 2/4 only */
 302                 bool active_low_pwm;
 303                 bool alternate_pwm_increment;   /* lpt+ */
 304
 305                 /* PWM chip */
 306                 bool util_pin_active_low;       /* bxt+ */
 307                 u8 controller;          /* bxt+ only */
 308                 struct pwm_device *pwm;
 309
 310                 struct backlight_device *device;
 311
 312                 /* Connector and platform specific backlight functions */
 313                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 314                 u32 (*get)(struct intel_connector *connector);
 315                 void (*set)(const struct drm_connector_state *conn_state, u32 level);
 316                 void (*disable)(const struct drm_connector_state *conn_state);
 317                 void (*enable)(const struct intel_crtc_state *crtc_state,
 318                                const struct drm_connector_state *conn_state);
 319                 u32 (*hz_to_pwm)(struct intel_connector *connector, u32 hz);
 320                 void (*power)(struct intel_connector *, bool enable);
 321         } backlight;
 322 };
 323
 324 struct intel_digital_port;
 325
 326 /*
 327  * This structure serves as a translation layer between the generic HDCP code
 328  * and the bus-specific code. What that means is that HDCP over HDMI differs
 329  * from HDCP over DP, so to account for these differences, we need to
 330  * communicate with the receiver through this shim.
 331  *
 332  * For completeness, the 2 buses differ in the following ways:
 333  *      - DP AUX vs. DDC
 334  *              HDCP registers on the receiver are set via DP AUX for DP, and
 335  *              they are set via DDC for HDMI.
 336  *      - Receiver register offsets
 337  *              The offsets of the registers are different for DP vs. HDMI
 338  *      - Receiver register masks/offsets
 339  *              For instance, the ready bit for the KSV fifo is in a different
 340  *              place on DP vs HDMI
 341  *      - Receiver register names
 342  *              Seriously. In the DP spec, the 16-bit register containing
 343  *              downstream information is called BINFO, on HDMI it's called
 344  *              BSTATUS. To confuse matters further, DP has a BSTATUS register
 345  *              with a completely different definition.
 346  *      - KSV FIFO
 347  *              On HDMI, the ksv fifo is read all at once, whereas on DP it must
 348  *              be read 3 keys at a time
 349  *      - Aksv output
 350  *              Since Aksv is hidden in hardware, there's different procedures
 351  *              to send it over DP AUX vs DDC
 352  */
 353 struct intel_hdcp_shim {
 354         /* Outputs the transmitter's An and Aksv values to the receiver. */
 355         int (*write_an_aksv)(struct intel_digital_port *intel_dig_port, u8 *an);
 356
 357         /* Reads the receiver's key selection vector */
 358         int (*read_bksv)(struct intel_digital_port *intel_dig_port, u8 *bksv);
 359
 360         /*
 361          * Reads BINFO from DP receivers and BSTATUS from HDMI receivers. The
 362          * definitions are the same in the respective specs, but the names are
 363          * different. Call it BSTATUS since that's the name the HDMI spec
 364          * uses and it was there first.
 365          */
 366         int (*read_bstatus)(struct intel_digital_port *intel_dig_port,
 367                             u8 *bstatus);
 368
 369         /* Determines whether a repeater is present downstream */
 370         int (*repeater_present)(struct intel_digital_port *intel_dig_port,
 371                                 bool *repeater_present);
 372
 373         /* Reads the receiver's Ri' value */
 374         int (*read_ri_prime)(struct intel_digital_port *intel_dig_port, u8 *ri);
 375
 376         /* Determines if the receiver's KSV FIFO is ready for consumption */
 377         int (*read_ksv_ready)(struct intel_digital_port *intel_dig_port,
 378                               bool *ksv_ready);
 379
 380         /* Reads the ksv fifo for num_downstream devices */
 381         int (*read_ksv_fifo)(struct intel_digital_port *intel_dig_port,
 382                              int num_downstream, u8 *ksv_fifo);
 383
 384         /* Reads a 32-bit part of V' from the receiver */
 385         int (*read_v_prime_part)(struct intel_digital_port *intel_dig_port,
 386                                  int i, u32 *part);
 387
 388         /* Enables HDCP signalling on the port */
 389         int (*toggle_signalling)(struct intel_digital_port *intel_dig_port,
 390                                  bool enable);
 391
 392         /* Ensures the link is still protected */
 393         bool (*check_link)(struct intel_digital_port *intel_dig_port);
 394
 395         /* Detects panel's hdcp capability. This is optional for HDMI. */
 396         int (*hdcp_capable)(struct intel_digital_port *intel_dig_port,
 397                             bool *hdcp_capable);
 398 };
 399
 400 struct intel_hdcp {
 401         const struct intel_hdcp_shim *shim;
 402         /* Mutex for hdcp state of the connector */
 403         struct mutex mutex;
 404         u64 value;
 405         struct delayed_work check_work;
 406         struct work_struct prop_work;
 407 };
 408
 409 struct intel_connector {
 410         struct drm_connector base;
 411         /*
 412          * The fixed encoder this connector is connected to.
 413          */
 414         struct intel_encoder *encoder;
 415
 416         /* ACPI device id for ACPI and driver cooperation */
 417         u32 acpi_device_id;
 418
 419         /* Reads out the current hw, returning true if the connector is enabled
 420          * and active (i.e. dpms ON state). */
 421         bool (*get_hw_state)(struct intel_connector *);
 422
 423         /* Panel info for eDP and LVDS */
 424         struct intel_panel panel;
 425
 426         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 427         struct edid *edid;
 428         struct edid *detect_edid;
 429
 430         /* since POLL and HPD connectors may use the same HPD line keep the native
 431            state of connector->polled in case hotplug storm detection changes it */
 432         u8 polled;
 433
 434         void *port; /* store this opaque as its illegal to dereference it */
 435
 436         struct intel_dp *mst_port;
 437
 438         /* Work struct to schedule a uevent on link train failure */
 439         struct work_struct modeset_retry_work;
 440
 441         struct intel_hdcp hdcp;
 442 };
 443
 444 struct intel_digital_connector_state {
 445         struct drm_connector_state base;
 446
 447         enum hdmi_force_audio force_audio;
 448         int broadcast_rgb;
 449 };
 450
 451 #define to_intel_digital_connector_state(x) container_of(x, struct intel_digital_connector_state, base)
 452
 453 struct dpll {
 454         /* given values */
 455         int n;
 456         int m1, m2;
 457         int p1, p2;
 458         /* derived values */
 459         int     dot;
 460         int     vco;
 461         int     m;
 462         int     p;
 463 };
 464
 465 struct intel_atomic_state {
 466         struct drm_atomic_state base;
 467
 468         struct {
 469                 /*
 470                  * Logical state of cdclk (used for all scaling, watermark,
 471                  * etc. calculations and checks). This is computed as if all
 472                  * enabled crtcs were active.
 473                  */
 474                 struct intel_cdclk_state logical;
 475
 476                 /*
 477                  * Actual state of cdclk, can be different from the logical
 478                  * state only when all crtc's are DPMS off.
 479                  */
 480                 struct intel_cdclk_state actual;
 481         } cdclk;
 482
 483         bool dpll_set, modeset;
 484
 485         /*
 486          * Does this transaction change the pipes that are active?  This mask
 487          * tracks which CRTC's have changed their active state at the end of
 488          * the transaction (not counting the temporary disable during modesets).
 489          * This mask should only be non-zero when intel_state->modeset is true,
 490          * but the converse is not necessarily true; simply changing a mode may
 491          * not flip the final active status of any CRTC's
 492          */
 493         unsigned int active_pipe_changes;
 494
 495         unsigned int active_crtcs;
 496         /* minimum acceptable cdclk for each pipe */
 497         int min_cdclk[I915_MAX_PIPES];
 498         /* minimum acceptable voltage level for each pipe */
 499         u8 min_voltage_level[I915_MAX_PIPES];
 500
 501         struct intel_shared_dpll_state shared_dpll[I915_NUM_PLLS];
 502
 503         /*
 504          * Current watermarks can't be trusted during hardware readout, so
 505          * don't bother calculating intermediate watermarks.
 506          */
 507         bool skip_intermediate_wm;
 508
 509         bool rps_interactive;
 510
 511         /* Gen9+ only */
 512         struct skl_ddb_values wm_results;
 513
 514         struct i915_sw_fence commit_ready;
 515
 516         struct llist_node freed;
 517 };
 518
 519 struct intel_plane_state {
 520         struct drm_plane_state base;
 521         struct i915_ggtt_view view;
 522         struct i915_vma *vma;
 523         unsigned long flags;
 524 #define PLANE_HAS_FENCE BIT(0)
 525
 526         struct {
 527                 u32 offset;
 528                 /*
 529                  * Plane stride in:
 530                  * bytes for 0/180 degree rotation
 531                  * pixels for 90/270 degree rotation
 532                  */
 533                 u32 stride;
 534                 int x, y;
 535         } color_plane[2];
 536
 537         /* plane control register */
 538         u32 ctl;
 539
 540         /* plane color control register */
 541         u32 color_ctl;
 542
 543         /*
 544          * scaler_id
 545          *    = -1 : not using a scaler
 546          *    >=  0 : using a scalers
 547          *
 548          * plane requiring a scaler:
 549          *   - During check_plane, its bit is set in
 550          *     crtc_state->scaler_state.scaler_users by calling helper function
 551          *     update_scaler_plane.
 552          *   - scaler_id indicates the scaler it got assigned.
 553          *
 554          * plane doesn't require a scaler:
 555          *   - this can happen when scaling is no more required or plane simply
 556          *     got disabled.
 557          *   - During check_plane, corresponding bit is reset in
 558          *     crtc_state->scaler_state.scaler_users by calling helper function
 559          *     update_scaler_plane.
 560          */
 561         int scaler_id;
 562
 563         /*
 564          * linked_plane:
 565          *
 566          * ICL planar formats require 2 planes that are updated as pairs.
 567          * This member is used to make sure the other plane is also updated
 568          * when required, and for update_slave() to find the correct
 569          * plane_state to pass as argument.
 570          */
 571         struct intel_plane *linked_plane;
 572
 573         /*
 574          * slave:
 575          * If set don't update use the linked plane's state for updating
 576          * this plane during atomic commit with the update_slave() callback.
 577          *
 578          * It's also used by the watermark code to ignore wm calculations on
 579          * this plane. They're calculated by the linked plane's wm code.
 580          */
 581         u32 slave;
 582
 583         struct drm_intel_sprite_colorkey ckey;
 584 };
 585
 586 struct intel_initial_plane_config {
 587         struct intel_framebuffer *fb;
 588         unsigned int tiling;
 589         int size;
 590         u32 base;
 591         u8 rotation;
 592 };
 593
 594 #define SKL_MIN_SRC_W 8
 595 #define SKL_MAX_SRC_W 4096
 596 #define SKL_MIN_SRC_H 8
 597 #define SKL_MAX_SRC_H 4096
 598 #define SKL_MIN_DST_W 8
 599 #define SKL_MAX_DST_W 4096
 600 #define SKL_MIN_DST_H 8
 601 #define SKL_MAX_DST_H 4096
 602 #define ICL_MAX_SRC_W 5120
 603 #define ICL_MAX_SRC_H 4096
 604 #define ICL_MAX_DST_W 5120
 605 #define ICL_MAX_DST_H 4096
 606 #define SKL_MIN_YUV_420_SRC_W 16
 607 #define SKL_MIN_YUV_420_SRC_H 16
 608
 609 struct intel_scaler {
 610         int in_use;
 611         u32 mode;
 612 };
 613
 614 struct intel_crtc_scaler_state {
 615 #define SKL_NUM_SCALERS 2
 616         struct intel_scaler scalers[SKL_NUM_SCALERS];
 617
 618         /*
 619          * scaler_users: keeps track of users requesting scalers on this crtc.
 620          *
 621          *     If a bit is set, a user is using a scaler.
 622          *     Here user can be a plane or crtc as defined below:
 623          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 624          *       bit 31    - crtc
 625          *
 626          * Instead of creating a new index to cover planes and crtc, using
 627          * existing drm_plane_index for planes which is well less than 31
 628          * planes and bit 31 for crtc. This should be fine to cover all
 629          * our platforms.
 630          *
 631          * intel_atomic_setup_scalers will setup available scalers to users
 632          * requesting scalers. It will gracefully fail if request exceeds
 633          * avilability.
 634          */
 635 #define SKL_CRTC_INDEX 31
 636         unsigned scaler_users;
 637
 638         /* scaler used by crtc for panel fitting purpose */
 639         int scaler_id;
 640 };
 641
 642 /* drm_mode->private_flags */
 643 #define I915_MODE_FLAG_INHERITED (1<<0)
 644 /* Flag to get scanline using frame time stamps */
 645 #define I915_MODE_FLAG_GET_SCANLINE_FROM_TIMESTAMP (1<<1)
 646 /* Flag to use the scanline counter instead of the pixel counter */
 647 #define I915_MODE_FLAG_USE_SCANLINE_COUNTER (1<<2)
 648
 649 struct intel_pipe_wm {
 650         struct intel_wm_level wm[5];
 651         u32 linetime;
 652         bool fbc_wm_enabled;
 653         bool pipe_enabled;
 654         bool sprites_enabled;
 655         bool sprites_scaled;
 656 };
 657
 658 struct skl_plane_wm {
 659         struct skl_wm_level wm[8];
 660         struct skl_wm_level uv_wm[8];
 661         struct skl_wm_level trans_wm;
 662         bool is_planar;
 663 };
 664
 665 struct skl_pipe_wm {
 666         struct skl_plane_wm planes[I915_MAX_PLANES];
 667         u32 linetime;
 668 };
 669
 670 enum vlv_wm_level {
 671         VLV_WM_LEVEL_PM2,
 672         VLV_WM_LEVEL_PM5,
 673         VLV_WM_LEVEL_DDR_DVFS,
 674         NUM_VLV_WM_LEVELS,
 675 };
 676
 677 struct vlv_wm_state {
 678         struct g4x_pipe_wm wm[NUM_VLV_WM_LEVELS];
 679         struct g4x_sr_wm sr[NUM_VLV_WM_LEVELS];
 680         u8 num_levels;
 681         bool cxsr;
 682 };
 683
 684 struct vlv_fifo_state {
 685         u16 plane[I915_MAX_PLANES];
 686 };
 687
 688 enum g4x_wm_level {
 689         G4X_WM_LEVEL_NORMAL,
 690         G4X_WM_LEVEL_SR,
 691         G4X_WM_LEVEL_HPLL,
 692         NUM_G4X_WM_LEVELS,
 693 };
 694
 695 struct g4x_wm_state {
 696         struct g4x_pipe_wm wm;
 697         struct g4x_sr_wm sr;
 698         struct g4x_sr_wm hpll;
 699         bool cxsr;
 700         bool hpll_en;
 701         bool fbc_en;
 702 };
 703
 704 struct intel_crtc_wm_state {
 705         union {
 706                 struct {
 707                         /*
 708                          * Intermediate watermarks; these can be
 709                          * programmed immediately since they satisfy
 710                          * both the current configuration we're
 711                          * switching away from and the new
 712                          * configuration we're switching to.
 713                          */
 714                         struct intel_pipe_wm intermediate;
 715
 716                         /*
 717                          * Optimal watermarks, programmed post-vblank
 718                          * when this state is committed.
 719                          */
 720                         struct intel_pipe_wm optimal;
 721                 } ilk;
 722
 723                 struct {
 724                         /* gen9+ only needs 1-step wm programming */
 725                         struct skl_pipe_wm optimal;
 726                         struct skl_ddb_entry ddb;
 727                         struct skl_ddb_entry plane_ddb_y[I915_MAX_PLANES];
 728                         struct skl_ddb_entry plane_ddb_uv[I915_MAX_PLANES];
 729                 } skl;
 730
 731                 struct {
 732                         /* "raw" watermarks (not inverted) */
 733                         struct g4x_pipe_wm raw[NUM_VLV_WM_LEVELS];
 734                         /* intermediate watermarks (inverted) */
 735                         struct vlv_wm_state intermediate;
 736                         /* optimal watermarks (inverted) */
 737                         struct vlv_wm_state optimal;
 738                         /* display FIFO split */
 739                         struct vlv_fifo_state fifo_state;
 740                 } vlv;
 741
 742                 struct {
 743                         /* "raw" watermarks */
 744                         struct g4x_pipe_wm raw[NUM_G4X_WM_LEVELS];
 745                         /* intermediate watermarks */
 746                         struct g4x_wm_state intermediate;
 747                         /* optimal watermarks */
 748                         struct g4x_wm_state optimal;
 749                 } g4x;
 750         };
 751
 752         /*
 753          * Platforms with two-step watermark programming will need to
 754          * update watermark programming post-vblank to switch from the
 755          * safe intermediate watermarks to the optimal final
 756          * watermarks.
 757          */
 758         bool need_postvbl_update;
 759 };
 760
 761 enum intel_output_format {
 762         INTEL_OUTPUT_FORMAT_INVALID,
 763         INTEL_OUTPUT_FORMAT_RGB,
 764         INTEL_OUTPUT_FORMAT_YCBCR420,
 765         INTEL_OUTPUT_FORMAT_YCBCR444,
 766 };
 767
 768 struct intel_crtc_state {
 769         struct drm_crtc_state base;
 770
 771         /**
 772          * quirks - bitfield with hw state readout quirks
 773          *
 774          * For various reasons the hw state readout code might not be able to
 775          * completely faithfully read out the current state. These cases are
 776          * tracked with quirk flags so that fastboot and state checker can act
 777          * accordingly.
 778          */
 779 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 780         unsigned long quirks;
 781
 782         unsigned fb_bits; /* framebuffers to flip */
 783         bool update_pipe; /* can a fast modeset be performed? */
 784         bool disable_cxsr;
 785         bool update_wm_pre, update_wm_post; /* watermarks are updated */
 786         bool fb_changed; /* fb on any of the planes is changed */
 787         bool fifo_changed; /* FIFO split is changed */
 788
 789         /* Pipe source size (ie. panel fitter input size)
 790          * All planes will be positioned inside this space,
 791          * and get clipped at the edges. */
 792         int pipe_src_w, pipe_src_h;
 793
 794         /*
 795          * Pipe pixel rate, adjusted for
 796          * panel fitter/pipe scaler downscaling.
 797          */
 798         unsigned int pixel_rate;
 799
 800         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 801          * between pch encoders and cpu encoders. */
 802         bool has_pch_encoder;
 803
 804         /* Are we sending infoframes on the attached port */
 805         bool has_infoframe;
 806
 807         /* CPU Transcoder for the pipe. Currently this can only differ from the
 808          * pipe on Haswell and later (where we have a special eDP transcoder)
 809          * and Broxton (where we have special DSI transcoders). */
 810         enum transcoder cpu_transcoder;
 811
 812         /*
 813          * Use reduced/limited/broadcast rbg range, compressing from the full
 814          * range fed into the crtcs.
 815          */
 816         bool limited_color_range;
 817
 818         /* Bitmask of encoder types (enum intel_output_type)
 819          * driven by the pipe.
 820          */
 821         unsigned int output_types;
 822
 823         /* Whether we should send NULL infoframes. Required for audio. */
 824         bool has_hdmi_sink;
 825
 826         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 827          * has_dp_encoder is set. */
 828         bool has_audio;
 829
 830         /*
 831          * Enable dithering, used when the selected pipe bpp doesn't match the
 832          * plane bpp.
 833          */
 834         bool dither;
 835
 836         /*
 837          * Dither gets enabled for 18bpp which causes CRC mismatch errors for
 838          * compliance video pattern tests.
 839          * Disable dither only if it is a compliance test request for
 840          * 18bpp.
 841          */
 842         bool dither_force_disable;
 843
 844         /* Controls for the clock computation, to override various stages. */
 845         bool clock_set;
 846
 847         /* SDVO TV has a bunch of special case. To make multifunction encoders
 848          * work correctly, we need to track this at runtime.*/
 849         bool sdvo_tv_clock;
 850
 851         /*
 852          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 853          * required. This is set in the 2nd loop of calling encoder's
 854          * ->compute_config if the first pick doesn't work out.
 855          */
 856         bool bw_constrained;
 857
 858         /* Settings for the intel dpll used on pretty much everything but
 859          * haswell. */
 860         struct dpll dpll;
 861
 862         /* Selected dpll when shared or NULL. */
 863         struct intel_shared_dpll *shared_dpll;
 864
 865         /* Actual register state of the dpll, for shared dpll cross-checking. */
 866         struct intel_dpll_hw_state dpll_hw_state;
 867
 868         /* DSI PLL registers */
 869         struct {
 870                 u32 ctrl, div;
 871         } dsi_pll;
 872
 873         int pipe_bpp;
 874         struct intel_link_m_n dp_m_n;
 875
 876         /* m2_n2 for eDP downclock */
 877         struct intel_link_m_n dp_m2_n2;
 878         bool has_drrs;
 879
 880         bool has_psr;
 881         bool has_psr2;
 882
 883         /*
 884          * Frequence the dpll for the port should run at. Differs from the
 885          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 886          * already multiplied by pixel_multiplier.
 887          */
 888         int port_clock;
 889
 890         /* Used by SDVO (and if we ever fix it, HDMI). */
 891         unsigned pixel_multiplier;
 892
 893         u8 lane_count;
 894
 895         /*
 896          * Used by platforms having DP/HDMI PHY with programmable lane
 897          * latency optimization.
 898          */
 899         u8 lane_lat_optim_mask;
 900
 901         /* minimum acceptable voltage level */
 902         u8 min_voltage_level;
 903
 904         /* Panel fitter controls for gen2-gen4 + VLV */
 905         struct {
 906                 u32 control;
 907                 u32 pgm_ratios;
 908                 u32 lvds_border_bits;
 909         } gmch_pfit;
 910
 911         /* Panel fitter placement and size for Ironlake+ */
 912         struct {
 913                 u32 pos;
 914                 u32 size;
 915                 bool enabled;
 916                 bool force_thru;
 917         } pch_pfit;
 918
 919         /* FDI configuration, only valid if has_pch_encoder is set. */
 920         int fdi_lanes;
 921         struct intel_link_m_n fdi_m_n;
 922
 923         bool ips_enabled;
 924         bool ips_force_disable;
 925
 926         bool enable_fbc;
 927
 928         bool double_wide;
 929
 930         int pbn;
 931
 932         struct intel_crtc_scaler_state scaler_state;
 933
 934         /* w/a for waiting 2 vblanks during crtc enable */
 935         enum pipe hsw_workaround_pipe;
 936
 937         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 938         bool disable_lp_wm;
 939
 940         struct intel_crtc_wm_state wm;
 941
 942         /* Gamma mode programmed on the pipe */
 943         u32 gamma_mode;
 944
 945         /* bitmask of visible planes (enum plane_id) */
 946         u8 active_planes;
 947         u8 nv12_planes;
 948
 949         /* bitmask of planes that will be updated during the commit */
 950         u8 update_planes;
 951
 952         /* HDMI scrambling status */
 953         bool hdmi_scrambling;
 954
 955         /* HDMI High TMDS char rate ratio */
 956         bool hdmi_high_tmds_clock_ratio;
 957
 958         /* Output format RGB/YCBCR etc */
 959         enum intel_output_format output_format;
 960
 961         /* Output down scaling is done in LSPCON device */
 962         bool lspcon_downsampling;
 963
 964         /* Display Stream compression state */
 965         struct {
 966                 bool compression_enable;
 967                 bool dsc_split;
 968                 u16 compressed_bpp;
 969                 u8 slice_count;
 970         } dsc_params;
 971         struct drm_dsc_config dp_dsc_cfg;
 972
 973         /* Forward Error correction State */
 974         bool fec_enable;
 975 };
 976
 977 struct intel_crtc {
 978         struct drm_crtc base;
 979         enum pipe pipe;
 980         /*
 981          * Whether the crtc and the connected output pipeline is active. Implies
 982          * that crtc->enabled is set, i.e. the current mode configuration has
 983          * some outputs connected to this crtc.
 984          */
 985         bool active;
 986         u8 plane_ids_mask;
 987         unsigned long long enabled_power_domains;
 988         struct intel_overlay *overlay;
 989
 990         struct intel_crtc_state *config;
 991
 992         /* global reset count when the last flip was submitted */
 993         unsigned int reset_count;
 994
 995         /* Access to these should be protected by dev_priv->irq_lock. */
 996         bool cpu_fifo_underrun_disabled;
 997         bool pch_fifo_underrun_disabled;
 998
 999         /* per-pipe watermark state */
1000         struct {
1001                 /* watermarks currently being used  */
1002                 union {
1003                         struct intel_pipe_wm ilk;
1004                         struct vlv_wm_state vlv;
1005                         struct g4x_wm_state g4x;
1006                 } active;
1007         } wm;
1008
1009         int scanline_offset;
1010
1011         struct {
1012                 unsigned start_vbl_count;
1013                 ktime_t start_vbl_time;
1014                 int min_vbl, max_vbl;
1015                 int scanline_start;
1016         } debug;
1017
1018         /* scalers available on this crtc */
1019         int num_scalers;
1020 };
1021
1022 struct intel_plane {
1023         struct drm_plane base;
1024         enum i9xx_plane_id i9xx_plane;
1025         enum plane_id id;
1026         enum pipe pipe;
1027         bool has_fbc;
1028         bool has_ccs;
1029         u32 frontbuffer_bit;
1030
1031         struct {
1032                 u32 base, cntl, size;
1033         } cursor;
1034
1035         /*
1036          * NOTE: Do not place new plane state fields here (e.g., when adding
1037          * new plane properties).  New runtime state should now be placed in
1038          * the intel_plane_state structure and accessed via plane_state.
1039          */
1040
1041         unsigned int (*max_stride)(struct intel_plane *plane,
1042                                    u32 pixel_format, u64 modifier,
1043                                    unsigned int rotation);
1044         void (*update_plane)(struct intel_plane *plane,
1045                              const struct intel_crtc_state *crtc_state,
1046                              const struct intel_plane_state *plane_state);
1047         void (*update_slave)(struct intel_plane *plane,
1048                              const struct intel_crtc_state *crtc_state,
1049                              const struct intel_plane_state *plane_state);
1050         void (*disable_plane)(struct intel_plane *plane,
1051                               const struct intel_crtc_state *crtc_state);
1052         bool (*get_hw_state)(struct intel_plane *plane, enum pipe *pipe);
1053         int (*check_plane)(struct intel_crtc_state *crtc_state,
1054                            struct intel_plane_state *plane_state);
1055 };
1056
1057 struct intel_watermark_params {
1058         u16 fifo_size;
1059         u16 max_wm;
1060         u8 default_wm;
1061         u8 guard_size;
1062         u8 cacheline_size;
1063 };
1064
1065 struct cxsr_latency {
1066         bool is_desktop : 1;
1067         bool is_ddr3 : 1;
1068         u16 fsb_freq;
1069         u16 mem_freq;
1070         u16 display_sr;
1071         u16 display_hpll_disable;
1072         u16 cursor_sr;
1073         u16 cursor_hpll_disable;
1074 };
1075
1076 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
1077 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
1078 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
1079 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
1080 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
1081 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
1082 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
1083 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
1084 #define intel_fb_obj(x) ((x) ? to_intel_bo((x)->obj[0]) : NULL)
1085
1086 struct intel_hdmi {
1087         i915_reg_t hdmi_reg;
1088         int ddc_bus;
1089         struct {
1090                 enum drm_dp_dual_mode_type type;
1091                 int max_tmds_clock;
1092         } dp_dual_mode;
1093         bool has_hdmi_sink;
1094         bool has_audio;
1095         struct intel_connector *attached_connector;
1096         struct cec_notifier *cec_notifier;
1097 };
1098
1099 struct intel_dp_mst_encoder;
1100 #define DP_MAX_DOWNSTREAM_PORTS         0x10
1101
1102 /*
1103  * enum link_m_n_set:
1104  *      When platform provides two set of M_N registers for dp, we can
1105  *      program them and switch between them incase of DRRS.
1106  *      But When only one such register is provided, we have to program the
1107  *      required divider value on that registers itself based on the DRRS state.
1108  *
1109  * M1_N1        : Program dp_m_n on M1_N1 registers
1110  *                        dp_m2_n2 on M2_N2 registers (If supported)
1111  *
1112  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
1113  *                        M2_N2 registers are not supported
1114  */
1115
1116 enum link_m_n_set {
1117         /* Sets the m1_n1 and m2_n2 */
1118         M1_N1 = 0,
1119         M2_N2
1120 };
1121
1122 struct intel_dp_compliance_data {
1123         unsigned long edid;
1124         u8 video_pattern;
1125         u16 hdisplay, vdisplay;
1126         u8 bpc;
1127 };
1128
1129 struct intel_dp_compliance {
1130         unsigned long test_type;
1131         struct intel_dp_compliance_data test_data;
1132         bool test_active;
1133         int test_link_rate;
1134         u8 test_lane_count;
1135 };
1136
1137 struct intel_dp {
1138         i915_reg_t output_reg;
1139         u32 DP;
1140         int link_rate;
1141         u8 lane_count;
1142         u8 sink_count;
1143         bool link_mst;
1144         bool link_trained;
1145         bool has_audio;
1146         bool reset_link_params;
1147         u8 dpcd[DP_RECEIVER_CAP_SIZE];
1148         u8 psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
1149         u8 downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
1150         u8 edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE];
1151         u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_SIZE];
1152         u8 fec_capable;
1153         /* source rates */
1154         int num_source_rates;
1155         const int *source_rates;
1156         /* sink rates as reported by DP_MAX_LINK_RATE/DP_SUPPORTED_LINK_RATES */
1157         int num_sink_rates;
1158         int sink_rates[DP_MAX_SUPPORTED_RATES];
1159         bool use_rate_select;
1160         /* intersection of source and sink rates */
1161         int num_common_rates;
1162         int common_rates[DP_MAX_SUPPORTED_RATES];
1163         /* Max lane count for the current link */
1164         int max_link_lane_count;
1165         /* Max rate for the current link */
1166         int max_link_rate;
1167         /* sink or branch descriptor */
1168         struct drm_dp_desc desc;
1169         struct drm_dp_aux aux;
1170         u8 train_set[4];
1171         int panel_power_up_delay;
1172         int panel_power_down_delay;
1173         int panel_power_cycle_delay;
1174         int backlight_on_delay;
1175         int backlight_off_delay;
1176         struct delayed_work panel_vdd_work;
1177         bool want_panel_vdd;
1178         unsigned long last_power_on;
1179         unsigned long last_backlight_off;
1180         ktime_t panel_power_off_time;
1181
1182         struct notifier_block edp_notifier;
1183
1184         /*
1185          * Pipe whose power sequencer is currently locked into
1186          * this port. Only relevant on VLV/CHV.
1187          */
1188         enum pipe pps_pipe;
1189         /*
1190          * Pipe currently driving the port. Used for preventing
1191          * the use of the PPS for any pipe currentrly driving
1192          * external DP as that will mess things up on VLV.
1193          */
1194         enum pipe active_pipe;
1195         /*
1196          * Set if the sequencer may be reset due to a power transition,
1197          * requiring a reinitialization. Only relevant on BXT.
1198          */
1199         bool pps_reset;
1200         struct edp_power_seq pps_delays;
1201
1202         bool can_mst; /* this port supports mst */
1203         bool is_mst;
1204         int active_mst_links;
1205         /* connector directly attached - won't be use for modeset in mst world */
1206         struct intel_connector *attached_connector;
1207
1208         /* mst connector list */
1209         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
1210         struct drm_dp_mst_topology_mgr mst_mgr;
1211
1212         u32 (*get_aux_clock_divider)(struct intel_dp *dp, int index);
1213         /*
1214          * This function returns the value we have to program the AUX_CTL
1215          * register with to kick off an AUX transaction.
1216          */
1217         u32 (*get_aux_send_ctl)(struct intel_dp *dp, int send_bytes,
1218                                 u32 aux_clock_divider);
1219
1220         i915_reg_t (*aux_ch_ctl_reg)(struct intel_dp *dp);
1221         i915_reg_t (*aux_ch_data_reg)(struct intel_dp *dp, int index);
1222
1223         /* This is called before a link training is starterd */
1224         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
1225
1226         /* Displayport compliance testing */
1227         struct intel_dp_compliance compliance;
1228
1229         /* Display stream compression testing */
1230         bool force_dsc_en;
1231 };
1232
1233 enum lspcon_vendor {
1234         LSPCON_VENDOR_MCA,
1235         LSPCON_VENDOR_PARADE
1236 };
1237
1238 struct intel_lspcon {
1239         bool active;
1240         enum drm_lspcon_mode mode;
1241         enum lspcon_vendor vendor;
1242 };
1243
1244 struct intel_digital_port {
1245         struct intel_encoder base;
1246         u32 saved_port_bits;
1247         struct intel_dp dp;
1248         struct intel_hdmi hdmi;
1249         struct intel_lspcon lspcon;
1250         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
1251         bool release_cl2_override;
1252         u8 max_lanes;
1253         /* Used for DP and ICL+ TypeC/DP and TypeC/HDMI ports. */
1254         enum aux_ch aux_ch;
1255         enum intel_display_power_domain ddi_io_power_domain;
1256         bool tc_legacy_port:1;
1257         enum tc_port_type tc_type;
1258
1259         void (*write_infoframe)(struct intel_encoder *encoder,
1260                                 const struct intel_crtc_state *crtc_state,
1261                                 unsigned int type,
1262                                 const void *frame, ssize_t len);
1263         void (*set_infoframes)(struct intel_encoder *encoder,
1264                                bool enable,
1265                                const struct intel_crtc_state *crtc_state,
1266                                const struct drm_connector_state *conn_state);
1267         bool (*infoframe_enabled)(struct intel_encoder *encoder,
1268                                   const struct intel_crtc_state *pipe_config);
1269 };
1270
1271 struct intel_dp_mst_encoder {
1272         struct intel_encoder base;
1273         enum pipe pipe;
1274         struct intel_digital_port *primary;
1275         struct intel_connector *connector;
1276 };
1277
1278 static inline enum dpio_channel
1279 vlv_dport_to_channel(struct intel_digital_port *dport)
1280 {
1281         switch (dport->base.port) {
1282         case PORT_B:
1283         case PORT_D:
1284                 return DPIO_CH0;
1285         case PORT_C:
1286                 return DPIO_CH1;
1287         default:
1288                 BUG();
1289         }
1290 }
1291
1292 static inline enum dpio_phy
1293 vlv_dport_to_phy(struct intel_digital_port *dport)
1294 {
1295         switch (dport->base.port) {
1296         case PORT_B:
1297         case PORT_C:
1298                 return DPIO_PHY0;
1299         case PORT_D:
1300                 return DPIO_PHY1;
1301         default:
1302                 BUG();
1303         }
1304 }
1305
1306 static inline enum dpio_channel
1307 vlv_pipe_to_channel(enum pipe pipe)
1308 {
1309         switch (pipe) {
1310         case PIPE_A:
1311         case PIPE_C:
1312                 return DPIO_CH0;
1313         case PIPE_B:
1314                 return DPIO_CH1;
1315         default:
1316                 BUG();
1317         }
1318 }
1319
1320 static inline struct intel_crtc *
1321 intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
1322 {
1323         return dev_priv->pipe_to_crtc_mapping[pipe];
1324 }
1325
1326 static inline struct intel_crtc *
1327 intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum i9xx_plane_id plane)
1328 {
1329         return dev_priv->plane_to_crtc_mapping[plane];
1330 }
1331
1332 struct intel_load_detect_pipe {
1333         struct drm_atomic_state *restore_state;
1334 };
1335
1336 static inline struct intel_encoder *
1337 intel_attached_encoder(struct drm_connector *connector)
1338 {
1339         return to_intel_connector(connector)->encoder;
1340 }
1341
1342 static inline bool intel_encoder_is_dig_port(struct intel_encoder *encoder)
1343 {
1344         switch (encoder->type) {
1345         case INTEL_OUTPUT_DDI:
1346         case INTEL_OUTPUT_DP:
1347         case INTEL_OUTPUT_EDP:
1348         case INTEL_OUTPUT_HDMI:
1349                 return true;
1350         default:
1351                 return false;
1352         }
1353 }
1354
1355 static inline struct intel_digital_port *
1356 enc_to_dig_port(struct drm_encoder *encoder)
1357 {
1358         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
1359
1360         if (intel_encoder_is_dig_port(intel_encoder))
1361                 return container_of(encoder, struct intel_digital_port,
1362                                     base.base);
1363         else
1364                 return NULL;
1365 }
1366
1367 static inline struct intel_digital_port *
1368 conn_to_dig_port(struct intel_connector *connector)
1369 {
1370         return enc_to_dig_port(&intel_attached_encoder(&connector->base)->base);
1371 }
1372
1373 static inline struct intel_dp_mst_encoder *
1374 enc_to_mst(struct drm_encoder *encoder)
1375 {
1376         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
1377 }
1378
1379 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
1380 {
1381         return &enc_to_dig_port(encoder)->dp;
1382 }
1383
1384 static inline bool intel_encoder_is_dp(struct intel_encoder *encoder)
1385 {
1386         switch (encoder->type) {
1387         case INTEL_OUTPUT_DP:
1388         case INTEL_OUTPUT_EDP:
1389                 return true;
1390         case INTEL_OUTPUT_DDI:
1391                 /* Skip pure HDMI/DVI DDI encoders */
1392                 return i915_mmio_reg_valid(enc_to_intel_dp(&encoder->base)->output_reg);
1393         default:
1394                 return false;
1395         }
1396 }
1397
1398 static inline struct intel_lspcon *
1399 enc_to_intel_lspcon(struct drm_encoder *encoder)
1400 {
1401         return &enc_to_dig_port(encoder)->lspcon;
1402 }
1403
1404 static inline struct intel_digital_port *
1405 dp_to_dig_port(struct intel_dp *intel_dp)
1406 {
1407         return container_of(intel_dp, struct intel_digital_port, dp);
1408 }
1409
1410 static inline struct intel_lspcon *
1411 dp_to_lspcon(struct intel_dp *intel_dp)
1412 {
1413         return &dp_to_dig_port(intel_dp)->lspcon;
1414 }
1415
1416 static inline struct drm_i915_private *
1417 dp_to_i915(struct intel_dp *intel_dp)
1418 {
1419         return to_i915(dp_to_dig_port(intel_dp)->base.base.dev);
1420 }
1421
1422 static inline struct intel_digital_port *
1423 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
1424 {
1425         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1426 }
1427
1428 static inline struct intel_plane_state *
1429 intel_atomic_get_plane_state(struct intel_atomic_state *state,
1430                                  struct intel_plane *plane)
1431 {
1432         struct drm_plane_state *ret =
1433                 drm_atomic_get_plane_state(&state->base, &plane->base);
1434
1435         if (IS_ERR(ret))
1436                 return ERR_CAST(ret);
1437
1438         return to_intel_plane_state(ret);
1439 }
1440
1441 static inline struct intel_plane_state *
1442 intel_atomic_get_old_plane_state(struct intel_atomic_state *state,
1443                                  struct intel_plane *plane)
1444 {
1445         return to_intel_plane_state(drm_atomic_get_old_plane_state(&state->base,
1446                                                                    &plane->base));
1447 }
1448
1449 static inline struct intel_plane_state *
1450 intel_atomic_get_new_plane_state(struct intel_atomic_state *state,
1451                                  struct intel_plane *plane)
1452 {
1453         return to_intel_plane_state(drm_atomic_get_new_plane_state(&state->base,
1454                                                                    &plane->base));
1455 }
1456
1457 static inline struct intel_crtc_state *
1458 intel_atomic_get_old_crtc_state(struct intel_atomic_state *state,
1459                                 struct intel_crtc *crtc)
1460 {
1461         return to_intel_crtc_state(drm_atomic_get_old_crtc_state(&state->base,
1462                                                                  &crtc->base));
1463 }
1464
1465 static inline struct intel_crtc_state *
1466 intel_atomic_get_new_crtc_state(struct intel_atomic_state *state,
1467                                 struct intel_crtc *crtc)
1468 {
1469         return to_intel_crtc_state(drm_atomic_get_new_crtc_state(&state->base,
1470                                                                  &crtc->base));
1471 }
1472
1473 /* intel_fifo_underrun.c */
1474 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1475                                            enum pipe pipe, bool enable);
1476 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1477                                            enum pipe pch_transcoder,
1478                                            bool enable);
1479 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1480                                          enum pipe pipe);
1481 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1482                                          enum pipe pch_transcoder);
1483 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1484 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1485
1486 /* i915_irq.c */
1487 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
1488 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, u32 mask);
1489 void gen6_mask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1490 void gen6_unmask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1491 void gen11_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1492 void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1493 void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
1494 void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
1495
1496 static inline u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915,
1497                                             u32 mask)
1498 {
1499         return mask & ~i915->gt_pm.rps.pm_intrmsk_mbz;
1500 }
1501
1502 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1503 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1504 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1505 {
1506         /*
1507          * We only use drm_irq_uninstall() at unload and VT switch, so
1508          * this is the only thing we need to check.
1509          */
1510         return dev_priv->runtime_pm.irqs_enabled;
1511 }
1512
1513 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1514 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1515                                      u8 pipe_mask);
1516 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1517                                      u8 pipe_mask);
1518 void gen9_reset_guc_interrupts(struct drm_i915_private *dev_priv);
1519 void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv);
1520 void gen9_disable_guc_interrupts(struct drm_i915_private *dev_priv);
1521
1522 /* intel_crt.c */
1523 bool intel_crt_port_enabled(struct drm_i915_private *dev_priv,
1524                             i915_reg_t adpa_reg, enum pipe *pipe);
1525 void intel_crt_init(struct drm_i915_private *dev_priv);
1526 void intel_crt_reset(struct drm_encoder *encoder);
1527
1528 /* intel_ddi.c */
1529 void intel_ddi_fdi_post_disable(struct intel_encoder *intel_encoder,
1530                                 const struct intel_crtc_state *old_crtc_state,
1531                                 const struct drm_connector_state *old_conn_state);
1532 void hsw_fdi_link_train(struct intel_crtc *crtc,
1533                         const struct intel_crtc_state *crtc_state);
1534 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
1535 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1536 void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
1537 void intel_ddi_disable_transcoder_func(const struct intel_crtc_state *crtc_state);
1538 void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
1539 void intel_ddi_disable_pipe_clock(const  struct intel_crtc_state *crtc_state);
1540 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state);
1541 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1542 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1543 void intel_ddi_get_config(struct intel_encoder *encoder,
1544                           struct intel_crtc_state *pipe_config);
1545
1546 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
1547                                     bool state);
1548 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
1549                                          struct intel_crtc_state *crtc_state);
1550 u32 bxt_signal_levels(struct intel_dp *intel_dp);
1551 u32 ddi_signal_levels(struct intel_dp *intel_dp);
1552 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder);
1553 u8 intel_ddi_dp_pre_emphasis_max(struct intel_encoder *encoder,
1554                                  u8 voltage_swing);
1555 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
1556                                      bool enable);
1557 void icl_sanitize_encoder_pll_mapping(struct intel_encoder *encoder);
1558 int cnl_calc_wrpll_link(struct drm_i915_private *dev_priv,
1559                         enum intel_dpll_id pll_id);
1560
1561 unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
1562                                    int color_plane, unsigned int height);
1563
1564 /* intel_audio.c */
1565 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1566 void intel_audio_codec_enable(struct intel_encoder *encoder,
1567                               const struct intel_crtc_state *crtc_state,
1568                               const struct drm_connector_state *conn_state);
1569 void intel_audio_codec_disable(struct intel_encoder *encoder,
1570                                const struct intel_crtc_state *old_crtc_state,
1571                                const struct drm_connector_state *old_conn_state);
1572 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1573 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1574 void intel_audio_init(struct drm_i915_private *dev_priv);
1575 void intel_audio_deinit(struct drm_i915_private *dev_priv);
1576
1577 /* intel_cdclk.c */
1578 int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state);
1579 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1580 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1581 void cnl_init_cdclk(struct drm_i915_private *dev_priv);
1582 void cnl_uninit_cdclk(struct drm_i915_private *dev_priv);
1583 void bxt_init_cdclk(struct drm_i915_private *dev_priv);
1584 void bxt_uninit_cdclk(struct drm_i915_private *dev_priv);
1585 void icl_init_cdclk(struct drm_i915_private *dev_priv);
1586 void icl_uninit_cdclk(struct drm_i915_private *dev_priv);
1587 void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv);
1588 void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
1589 void intel_update_cdclk(struct drm_i915_private *dev_priv);
1590 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1591 bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
1592                                const struct intel_cdclk_state *b);
1593 bool intel_cdclk_changed(const struct intel_cdclk_state *a,
1594                          const struct intel_cdclk_state *b);
1595 void intel_set_cdclk(struct drm_i915_private *dev_priv,
1596                      const struct intel_cdclk_state *cdclk_state);
1597 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
1598                             const char *context);
1599
1600 /* intel_display.c */
1601 void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1602 void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1603 enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc);
1604 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
1605 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1606                       const char *name, u32 reg, int ref_freq);
1607 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
1608                            const char *name, u32 reg);
1609 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
1610 void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
1611 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1612 unsigned int intel_fb_xy_to_linear(int x, int y,
1613                                    const struct intel_plane_state *state,
1614                                    int plane);
1615 void intel_add_fb_offsets(int *x, int *y,
1616                           const struct intel_plane_state *state, int plane);
1617 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1618 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
1619 void intel_mark_busy(struct drm_i915_private *dev_priv);
1620 void intel_mark_idle(struct drm_i915_private *dev_priv);
1621 int intel_display_suspend(struct drm_device *dev);
1622 void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv);
1623 void intel_encoder_destroy(struct drm_encoder *encoder);
1624 struct drm_display_mode *
1625 intel_encoder_current_mode(struct intel_encoder *encoder);
1626 bool intel_port_is_combophy(struct drm_i915_private *dev_priv, enum port port);
1627 bool intel_port_is_tc(struct drm_i915_private *dev_priv, enum port port);
1628 enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv,
1629                               enum port port);
1630 int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
1631                                       struct drm_file *file_priv);
1632 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1633                                              enum pipe pipe);
1634 static inline bool
1635 intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
1636                     enum intel_output_type type)
1637 {
1638         return crtc_state->output_types & (1 << type);
1639 }
1640 static inline bool
1641 intel_crtc_has_dp_encoder(const struct intel_crtc_state *crtc_state)
1642 {
1643         return crtc_state->output_types &
1644                 ((1 << INTEL_OUTPUT_DP) |
1645                  (1 << INTEL_OUTPUT_DP_MST) |
1646                  (1 << INTEL_OUTPUT_EDP));
1647 }
1648 static inline void
1649 intel_wait_for_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
1650 {
1651         drm_wait_one_vblank(&dev_priv->drm, pipe);
1652 }
1653 static inline void
1654 intel_wait_for_vblank_if_active(struct drm_i915_private *dev_priv, int pipe)
1655 {
1656         const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
1657
1658         if (crtc->active)
1659                 intel_wait_for_vblank(dev_priv, pipe);
1660 }
1661
1662 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
1663
1664 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1665 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1666                          struct intel_digital_port *dport,
1667                          unsigned int expected_mask);
1668 int intel_get_load_detect_pipe(struct drm_connector *connector,
1669                                const struct drm_display_mode *mode,
1670                                struct intel_load_detect_pipe *old,
1671                                struct drm_modeset_acquire_ctx *ctx);
1672 void intel_release_load_detect_pipe(struct drm_connector *connector,
1673                                     struct intel_load_detect_pipe *old,
1674                                     struct drm_modeset_acquire_ctx *ctx);
1675 struct i915_vma *
1676 intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
1677                            const struct i915_ggtt_view *view,
1678                            bool uses_fence,
1679                            unsigned long *out_flags);
1680 void intel_unpin_fb_vma(struct i915_vma *vma, unsigned long flags);
1681 struct drm_framebuffer *
1682 intel_framebuffer_create(struct drm_i915_gem_object *obj,
1683                          struct drm_mode_fb_cmd2 *mode_cmd);
1684 int intel_prepare_plane_fb(struct drm_plane *plane,
1685                            struct drm_plane_state *new_state);
1686 void intel_cleanup_plane_fb(struct drm_plane *plane,
1687                             struct drm_plane_state *old_state);
1688 int intel_plane_atomic_get_property(struct drm_plane *plane,
1689                                     const struct drm_plane_state *state,
1690                                     struct drm_property *property,
1691                                     u64 *val);
1692 int intel_plane_atomic_set_property(struct drm_plane *plane,
1693                                     struct drm_plane_state *state,
1694                                     struct drm_property *property,
1695                                     u64 val);
1696 int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state,
1697                                     struct drm_crtc_state *crtc_state,
1698                                     const struct intel_plane_state *old_plane_state,
1699                                     struct drm_plane_state *plane_state);
1700
1701 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1702                                     enum pipe pipe);
1703
1704 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
1705                      const struct dpll *dpll);
1706 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
1707 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1708
1709 /* modesetting asserts */
1710 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1711                            enum pipe pipe);
1712 void assert_pll(struct drm_i915_private *dev_priv,
1713                 enum pipe pipe, bool state);
1714 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1715 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1716 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1717 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1718 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1719 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1720                        enum pipe pipe, bool state);
1721 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1722 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1723 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1724 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1725 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1726 void intel_prepare_reset(struct drm_i915_private *dev_priv);
1727 void intel_finish_reset(struct drm_i915_private *dev_priv);
1728 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1729 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1730 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1731 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1732 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1733 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1734 unsigned int skl_cdclk_get_vco(unsigned int freq);
1735 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1736 void intel_dp_get_m_n(struct intel_crtc *crtc,
1737                       struct intel_crtc_state *pipe_config);
1738 void intel_dp_set_m_n(const struct intel_crtc_state *crtc_state,
1739                       enum link_m_n_set m_n);
1740 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1741 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1742                         struct dpll *best_clock);
1743 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
1744
1745 bool intel_crtc_active(struct intel_crtc *crtc);
1746 bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state);
1747 void hsw_enable_ips(const struct intel_crtc_state *crtc_state);
1748 void hsw_disable_ips(const struct intel_crtc_state *crtc_state);
1749 enum intel_display_power_domain intel_port_to_power_domain(enum port port);
1750 enum intel_display_power_domain
1751 intel_aux_power_domain(struct intel_digital_port *dig_port);
1752 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1753                                  struct intel_crtc_state *pipe_config);
1754 void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
1755                                   struct intel_crtc_state *crtc_state);
1756
1757 u16 skl_scaler_calc_phase(int sub, int scale, bool chroma_center);
1758 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1759 int skl_max_scale(const struct intel_crtc_state *crtc_state,
1760                   u32 pixel_format);
1761
1762 static inline u32 intel_plane_ggtt_offset(const struct intel_plane_state *state)
1763 {
1764         return i915_ggtt_offset(state->vma);
1765 }
1766
1767 u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state,
1768                         const struct intel_plane_state *plane_state);
1769 u32 glk_plane_color_ctl_crtc(const struct intel_crtc_state *crtc_state);
1770 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
1771                   const struct intel_plane_state *plane_state);
1772 u32 skl_plane_ctl_crtc(const struct intel_crtc_state *crtc_state);
1773 u32 skl_plane_stride(const struct intel_plane_state *plane_state,
1774                      int plane);
1775 int skl_check_plane_surface(struct intel_plane_state *plane_state);
1776 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
1777 int skl_format_to_fourcc(int format, bool rgb_order, bool alpha);
1778 unsigned int i9xx_plane_max_stride(struct intel_plane *plane,
1779                                    u32 pixel_format, u64 modifier,
1780                                    unsigned int rotation);
1781
1782 /* intel_connector.c */
1783 int intel_connector_init(struct intel_connector *connector);
1784 struct intel_connector *intel_connector_alloc(void);
1785 void intel_connector_free(struct intel_connector *connector);
1786 void intel_connector_destroy(struct drm_connector *connector);
1787 int intel_connector_register(struct drm_connector *connector);
1788 void intel_connector_unregister(struct drm_connector *connector);
1789 void intel_connector_attach_encoder(struct intel_connector *connector,
1790                                     struct intel_encoder *encoder);
1791 bool intel_connector_get_hw_state(struct intel_connector *connector);
1792 enum pipe intel_connector_get_pipe(struct intel_connector *connector);
1793 int intel_connector_update_modes(struct drm_connector *connector,
1794                                  struct edid *edid);
1795 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1796 void intel_attach_force_audio_property(struct drm_connector *connector);
1797 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1798 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1799
1800 /* intel_csr.c */
1801 void intel_csr_ucode_init(struct drm_i915_private *);
1802 void intel_csr_load_program(struct drm_i915_private *);
1803 void intel_csr_ucode_fini(struct drm_i915_private *);
1804 void intel_csr_ucode_suspend(struct drm_i915_private *);
1805 void intel_csr_ucode_resume(struct drm_i915_private *);
1806
1807 /* intel_dp.c */
1808 bool intel_dp_port_enabled(struct drm_i915_private *dev_priv,
1809                            i915_reg_t dp_reg, enum port port,
1810                            enum pipe *pipe);
1811 bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
1812                    enum port port);
1813 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1814                              struct intel_connector *intel_connector);
1815 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1816                               int link_rate, u8 lane_count,
1817                               bool link_mst);
1818 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
1819                                             int link_rate, u8 lane_count);
1820 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1821 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1822 int intel_dp_retrain_link(struct intel_encoder *encoder,
1823                           struct drm_modeset_acquire_ctx *ctx);
1824 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1825 void intel_dp_sink_set_decompression_state(struct intel_dp *intel_dp,
1826                                            const struct intel_crtc_state *crtc_state,
1827                                            bool enable);
1828 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1829 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1830 void intel_dp_encoder_flush_work(struct drm_encoder *encoder);
1831 int intel_dp_compute_config(struct intel_encoder *encoder,
1832                             struct intel_crtc_state *pipe_config,
1833                             struct drm_connector_state *conn_state);
1834 bool intel_dp_is_edp(struct intel_dp *intel_dp);
1835 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
1836 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1837                                   bool long_hpd);
1838 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
1839                             const struct drm_connector_state *conn_state);
1840 void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
1841 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1842 void intel_edp_panel_on(struct intel_dp *intel_dp);
1843 void intel_edp_panel_off(struct intel_dp *intel_dp);
1844 void intel_dp_mst_suspend(struct drm_i915_private *dev_priv);
1845 void intel_dp_mst_resume(struct drm_i915_private *dev_priv);
1846 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1847 int intel_dp_max_lane_count(struct intel_dp *intel_dp);
1848 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1849 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1850 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
1851 u32 intel_dp_pack_aux(const u8 *src, int src_bytes);
1852 void intel_plane_destroy(struct drm_plane *plane);
1853 void intel_edp_drrs_enable(struct intel_dp *intel_dp,
1854                            const struct intel_crtc_state *crtc_state);
1855 void intel_edp_drrs_disable(struct intel_dp *intel_dp,
1856                             const struct intel_crtc_state *crtc_state);
1857 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
1858                                unsigned int frontbuffer_bits);
1859 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
1860                           unsigned int frontbuffer_bits);
1861
1862 void
1863 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1864                                        u8 dp_train_pat);
1865 void
1866 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1867 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1868 u8
1869 intel_dp_voltage_max(struct intel_dp *intel_dp);
1870 u8
1871 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, u8 voltage_swing);
1872 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1873                            u8 *link_bw, u8 *rate_select);
1874 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1875 bool intel_dp_source_supports_hbr3(struct intel_dp *intel_dp);
1876 bool
1877 intel_dp_get_link_status(struct intel_dp *intel_dp, u8 link_status[DP_LINK_STATUS_SIZE]);
1878 u16 intel_dp_dsc_get_output_bpp(int link_clock, u8 lane_count,
1879                                 int mode_clock, int mode_hdisplay);
1880 u8 intel_dp_dsc_get_slice_count(struct intel_dp *intel_dp, int mode_clock,
1881                                 int mode_hdisplay);
1882
1883 /* intel_vdsc.c */
1884 int intel_dp_compute_dsc_params(struct intel_dp *intel_dp,
1885                                 struct intel_crtc_state *pipe_config);
1886 enum intel_display_power_domain
1887 intel_dsc_power_domain(const struct intel_crtc_state *crtc_state);
1888
1889 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
1890 {
1891         return ~((1 << lane_count) - 1) & 0xf;
1892 }
1893
1894 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
1895 int intel_dp_link_required(int pixel_clock, int bpp);
1896 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
1897 bool intel_digital_port_connected(struct intel_encoder *encoder);
1898 void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
1899                            struct intel_digital_port *dig_port);
1900
1901 /* intel_dp_aux_backlight.c */
1902 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
1903
1904 /* intel_dp_mst.c */
1905 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1906 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1907 /* vlv_dsi.c */
1908 void vlv_dsi_init(struct drm_i915_private *dev_priv);
1909
1910 /* icl_dsi.c */
1911 void icl_dsi_init(struct drm_i915_private *dev_priv);
1912
1913 /* intel_dsi_dcs_backlight.c */
1914 int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
1915
1916 /* intel_dvo.c */
1917 void intel_dvo_init(struct drm_i915_private *dev_priv);
1918 /* intel_hotplug.c */
1919 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
1920 bool intel_encoder_hotplug(struct intel_encoder *encoder,
1921                            struct intel_connector *connector);
1922
1923 /* legacy fbdev emulation in intel_fbdev.c */
1924 #ifdef CONFIG_DRM_FBDEV_EMULATION
1925 extern int intel_fbdev_init(struct drm_device *dev);
1926 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1927 extern void intel_fbdev_unregister(struct drm_i915_private *dev_priv);
1928 extern void intel_fbdev_fini(struct drm_i915_private *dev_priv);
1929 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1930 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1931 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1932 #else
1933 static inline int intel_fbdev_init(struct drm_device *dev)
1934 {
1935         return 0;
1936 }
1937
1938 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1939 {
1940 }
1941
1942 static inline void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
1943 {
1944 }
1945
1946 static inline void intel_fbdev_fini(struct drm_i915_private *dev_priv)
1947 {
1948 }
1949
1950 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1951 {
1952 }
1953
1954 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
1955 {
1956 }
1957
1958 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1959 {
1960 }
1961 #endif
1962
1963 /* intel_fbc.c */
1964 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1965                            struct intel_atomic_state *state);
1966 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1967 void intel_fbc_pre_update(struct intel_crtc *crtc,
1968                           struct intel_crtc_state *crtc_state,
1969                           struct intel_plane_state *plane_state);
1970 void intel_fbc_post_update(struct intel_crtc *crtc);
1971 void intel_fbc_init(struct drm_i915_private *dev_priv);
1972 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1973 void intel_fbc_enable(struct intel_crtc *crtc,
1974                       struct intel_crtc_state *crtc_state,
1975                       struct intel_plane_state *plane_state);
1976 void intel_fbc_disable(struct intel_crtc *crtc);
1977 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1978 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1979                           unsigned int frontbuffer_bits,
1980                           enum fb_op_origin origin);
1981 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1982                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1983 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1984 void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
1985 int intel_fbc_reset_underrun(struct drm_i915_private *dev_priv);
1986
1987 /* intel_hdmi.c */
1988 void intel_hdmi_init(struct drm_i915_private *dev_priv, i915_reg_t hdmi_reg,
1989                      enum port port);
1990 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1991                                struct intel_connector *intel_connector);
1992 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1993 int intel_hdmi_compute_config(struct intel_encoder *encoder,
1994                               struct intel_crtc_state *pipe_config,
1995                               struct drm_connector_state *conn_state);
1996 bool intel_hdmi_handle_sink_scrambling(struct intel_encoder *encoder,
1997                                        struct drm_connector *connector,
1998                                        bool high_tmds_clock_ratio,
1999                                        bool scrambling);
2000 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
2001 void intel_infoframe_init(struct intel_digital_port *intel_dig_port);
2002
2003 /* intel_lvds.c */
2004 bool intel_lvds_port_enabled(struct drm_i915_private *dev_priv,
2005                              i915_reg_t lvds_reg, enum pipe *pipe);
2006 void intel_lvds_init(struct drm_i915_private *dev_priv);
2007 struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev);
2008 bool intel_is_dual_link_lvds(struct drm_device *dev);
2009
2010 /* intel_overlay.c */
2011 void intel_overlay_setup(struct drm_i915_private *dev_priv);
2012 void intel_overlay_cleanup(struct drm_i915_private *dev_priv);
2013 int intel_overlay_switch_off(struct intel_overlay *overlay);
2014 int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
2015                                   struct drm_file *file_priv);
2016 int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
2017                               struct drm_file *file_priv);
2018 void intel_overlay_reset(struct drm_i915_private *dev_priv);
2019
2020
2021 /* intel_panel.c */
2022 int intel_panel_init(struct intel_panel *panel,
2023                      struct drm_display_mode *fixed_mode,
2024                      struct drm_display_mode *downclock_mode);
2025 void intel_panel_fini(struct intel_panel *panel);
2026 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
2027                             struct drm_display_mode *adjusted_mode);
2028 void intel_pch_panel_fitting(struct intel_crtc *crtc,
2029                              struct intel_crtc_state *pipe_config,
2030                              int fitting_mode);
2031 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
2032                               struct intel_crtc_state *pipe_config,
2033                               int fitting_mode);
2034 void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
2035                                     u32 level, u32 max);
2036 int intel_panel_setup_backlight(struct drm_connector *connector,
2037                                 enum pipe pipe);
2038 void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
2039                                   const struct drm_connector_state *conn_state);
2040 void intel_panel_update_backlight(struct intel_encoder *encoder,
2041                                   const struct intel_crtc_state *crtc_state,
2042                                   const struct drm_connector_state *conn_state);
2043 void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
2044 extern struct drm_display_mode *intel_find_panel_downclock(
2045                                 struct drm_i915_private *dev_priv,
2046                                 struct drm_display_mode *fixed_mode,
2047                                 struct drm_connector *connector);
2048
2049 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
2050 int intel_backlight_device_register(struct intel_connector *connector);
2051 void intel_backlight_device_unregister(struct intel_connector *connector);
2052 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
2053 static inline int intel_backlight_device_register(struct intel_connector *connector)
2054 {
2055         return 0;
2056 }
2057 static inline void intel_backlight_device_unregister(struct intel_connector *connector)
2058 {
2059 }
2060 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
2061
2062 /* intel_hdcp.c */
2063 void intel_hdcp_atomic_check(struct drm_connector *connector,
2064                              struct drm_connector_state *old_state,
2065                              struct drm_connector_state *new_state);
2066 int intel_hdcp_init(struct intel_connector *connector,
2067                     const struct intel_hdcp_shim *hdcp_shim);
2068 int intel_hdcp_enable(struct intel_connector *connector);
2069 int intel_hdcp_disable(struct intel_connector *connector);
2070 int intel_hdcp_check_link(struct intel_connector *connector);
2071 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
2072 bool intel_hdcp_capable(struct intel_connector *connector);
2073
2074 /* intel_psr.c */
2075 #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
2076 void intel_psr_init_dpcd(struct intel_dp *intel_dp);
2077 void intel_psr_enable(struct intel_dp *intel_dp,
2078                       const struct intel_crtc_state *crtc_state);
2079 void intel_psr_disable(struct intel_dp *intel_dp,
2080                       const struct intel_crtc_state *old_crtc_state);
2081 int intel_psr_set_debugfs_mode(struct drm_i915_private *dev_priv,
2082                                struct drm_modeset_acquire_ctx *ctx,
2083                                u64 value);
2084 void intel_psr_invalidate(struct drm_i915_private *dev_priv,
2085                           unsigned frontbuffer_bits,
2086                           enum fb_op_origin origin);
2087 void intel_psr_flush(struct drm_i915_private *dev_priv,
2088                      unsigned frontbuffer_bits,
2089                      enum fb_op_origin origin);
2090 void intel_psr_init(struct drm_i915_private *dev_priv);
2091 void intel_psr_compute_config(struct intel_dp *intel_dp,
2092                               struct intel_crtc_state *crtc_state);
2093 void intel_psr_irq_control(struct drm_i915_private *dev_priv, u32 debug);
2094 void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir);
2095 void intel_psr_short_pulse(struct intel_dp *intel_dp);
2096 int intel_psr_wait_for_idle(const struct intel_crtc_state *new_crtc_state,
2097                             u32 *out_value);
2098 bool intel_psr_enabled(struct intel_dp *intel_dp);
2099
2100 /* intel_quirks.c */
2101 void intel_init_quirks(struct drm_i915_private *dev_priv);
2102
2103 /* intel_runtime_pm.c */
2104 void intel_runtime_pm_init_early(struct drm_i915_private *dev_priv);
2105 int intel_power_domains_init(struct drm_i915_private *);
2106 void intel_power_domains_cleanup(struct drm_i915_private *dev_priv);
2107 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
2108 void intel_power_domains_fini_hw(struct drm_i915_private *dev_priv);
2109 void icl_display_core_init(struct drm_i915_private *dev_priv, bool resume);
2110 void icl_display_core_uninit(struct drm_i915_private *dev_priv);
2111 void intel_power_domains_enable(struct drm_i915_private *dev_priv);
2112 void intel_power_domains_disable(struct drm_i915_private *dev_priv);
2113
2114 enum i915_drm_suspend_mode {
2115         I915_DRM_SUSPEND_IDLE,
2116         I915_DRM_SUSPEND_MEM,
2117         I915_DRM_SUSPEND_HIBERNATE,
2118 };
2119
2120 void intel_power_domains_suspend(struct drm_i915_private *dev_priv,
2121                                  enum i915_drm_suspend_mode);
2122 void intel_power_domains_resume(struct drm_i915_private *dev_priv);
2123 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
2124 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
2125 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
2126 void intel_runtime_pm_disable(struct drm_i915_private *dev_priv);
2127 void intel_runtime_pm_cleanup(struct drm_i915_private *dev_priv);
2128 const char *
2129 intel_display_power_domain_str(enum intel_display_power_domain domain);
2130
2131 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
2132                                     enum intel_display_power_domain domain);
2133 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
2134                                       enum intel_display_power_domain domain);
2135 intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv,
2136                                         enum intel_display_power_domain domain);
2137 intel_wakeref_t
2138 intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
2139                                    enum intel_display_power_domain domain);
2140 void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv,
2141                                        enum intel_display_power_domain domain);
2142 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
2143 void intel_display_power_put(struct drm_i915_private *dev_priv,
2144                              enum intel_display_power_domain domain,
2145                              intel_wakeref_t wakeref);
2146 #else
2147 #define intel_display_power_put(i915, domain, wakeref) \
2148         intel_display_power_put_unchecked(i915, domain)
2149 #endif
2150 void icl_dbuf_slices_update(struct drm_i915_private *dev_priv,
2151                             u8 req_slices);
2152
2153 static inline void
2154 assert_rpm_device_not_suspended(struct drm_i915_private *i915)
2155 {
2156         WARN_ONCE(i915->runtime_pm.suspended,
2157                   "Device suspended during HW access\n");
2158 }
2159
2160 static inline void
2161 assert_rpm_wakelock_held(struct drm_i915_private *i915)
2162 {
2163         assert_rpm_device_not_suspended(i915);
2164         WARN_ONCE(!atomic_read(&i915->runtime_pm.wakeref_count),
2165                   "RPM wakelock ref not held during HW access");
2166 }
2167
2168 /**
2169  * disable_rpm_wakeref_asserts - disable the RPM assert checks
2170  * @i915: i915 device instance
2171  *
2172  * This function disable asserts that check if we hold an RPM wakelock
2173  * reference, while keeping the device-not-suspended checks still enabled.
2174  * It's meant to be used only in special circumstances where our rule about
2175  * the wakelock refcount wrt. the device power state doesn't hold. According
2176  * to this rule at any point where we access the HW or want to keep the HW in
2177  * an active state we must hold an RPM wakelock reference acquired via one of
2178  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
2179  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
2180  * forcewake release timer, and the GPU RPS and hangcheck works. All other
2181  * users should avoid using this function.
2182  *
2183  * Any calls to this function must have a symmetric call to
2184  * enable_rpm_wakeref_asserts().
2185  */
2186 static inline void
2187 disable_rpm_wakeref_asserts(struct drm_i915_private *i915)
2188 {
2189         atomic_inc(&i915->runtime_pm.wakeref_count);
2190 }
2191
2192 /**
2193  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
2194  * @i915: i915 device instance
2195  *
2196  * This function re-enables the RPM assert checks after disabling them with
2197  * disable_rpm_wakeref_asserts. It's meant to be used only in special
2198  * circumstances otherwise its use should be avoided.
2199  *
2200  * Any calls to this function must have a symmetric call to
2201  * disable_rpm_wakeref_asserts().
2202  */
2203 static inline void
2204 enable_rpm_wakeref_asserts(struct drm_i915_private *i915)
2205 {
2206         atomic_dec(&i915->runtime_pm.wakeref_count);
2207 }
2208
2209 intel_wakeref_t intel_runtime_pm_get(struct drm_i915_private *i915);
2210 intel_wakeref_t intel_runtime_pm_get_if_in_use(struct drm_i915_private *i915);
2211 intel_wakeref_t intel_runtime_pm_get_noresume(struct drm_i915_private *i915);
2212
2213 #define with_intel_runtime_pm(i915, wf) \
2214         for ((wf) = intel_runtime_pm_get(i915); (wf); \
2215              intel_runtime_pm_put((i915), (wf)), (wf) = 0)
2216
2217 #define with_intel_runtime_pm_if_in_use(i915, wf) \
2218         for ((wf) = intel_runtime_pm_get_if_in_use(i915); (wf); \
2219              intel_runtime_pm_put((i915), (wf)), (wf) = 0)
2220
2221 void intel_runtime_pm_put_unchecked(struct drm_i915_private *i915);
2222 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
2223 void intel_runtime_pm_put(struct drm_i915_private *i915, intel_wakeref_t wref);
2224 #else
2225 #define intel_runtime_pm_put(i915, wref) intel_runtime_pm_put_unchecked(i915)
2226 #endif
2227
2228 #if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
2229 void print_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
2230                                     struct drm_printer *p);
2231 #else
2232 static inline void print_intel_runtime_pm_wakeref(struct drm_i915_private *i915,
2233                                                   struct drm_printer *p)
2234 {
2235 }
2236 #endif
2237
2238 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
2239                              bool override, unsigned int mask);
2240 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
2241                           enum dpio_channel ch, bool override);
2242
2243
2244 /* intel_pm.c */
2245 void intel_init_clock_gating(struct drm_i915_private *dev_priv);
2246 void intel_suspend_hw(struct drm_i915_private *dev_priv);
2247 int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
2248 void intel_update_watermarks(struct intel_crtc *crtc);
2249 void intel_init_pm(struct drm_i915_private *dev_priv);
2250 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
2251 void intel_pm_setup(struct drm_i915_private *dev_priv);
2252 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
2253 void intel_gpu_ips_teardown(void);
2254 void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
2255 void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
2256 void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
2257 void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
2258 void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
2259 void intel_suspend_gt_powersave(struct drm_i915_private *dev_priv);
2260 void gen6_rps_busy(struct drm_i915_private *dev_priv);
2261 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
2262 void gen6_rps_idle(struct drm_i915_private *dev_priv);
2263 void gen6_rps_boost(struct i915_request *rq, struct intel_rps_client *rps);
2264 void g4x_wm_get_hw_state(struct drm_i915_private *dev_priv);
2265 void vlv_wm_get_hw_state(struct drm_i915_private *dev_priv);
2266 void ilk_wm_get_hw_state(struct drm_i915_private *dev_priv);
2267 void skl_wm_get_hw_state(struct drm_i915_private *dev_priv);
2268 void skl_pipe_ddb_get_hw_state(struct intel_crtc *crtc,
2269                                struct skl_ddb_entry *ddb_y,
2270                                struct skl_ddb_entry *ddb_uv);
2271 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
2272                           struct skl_ddb_allocation *ddb /* out */);
2273 void skl_pipe_wm_get_hw_state(struct intel_crtc *crtc,
2274                               struct skl_pipe_wm *out);
2275 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
2276 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
2277 bool intel_can_enable_sagv(struct drm_atomic_state *state);
2278 int intel_enable_sagv(struct drm_i915_private *dev_priv);
2279 int intel_disable_sagv(struct drm_i915_private *dev_priv);
2280 bool skl_wm_level_equals(const struct skl_wm_level *l1,
2281                          const struct skl_wm_level *l2);
2282 bool skl_ddb_allocation_overlaps(const struct skl_ddb_entry *ddb,
2283                                  const struct skl_ddb_entry entries[],
2284                                  int num_entries, int ignore_idx);
2285 void skl_write_plane_wm(struct intel_plane *plane,
2286                         const struct intel_crtc_state *crtc_state);
2287 void skl_write_cursor_wm(struct intel_plane *plane,
2288                          const struct intel_crtc_state *crtc_state);
2289 bool ilk_disable_lp_wm(struct drm_device *dev);
2290 int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
2291                                   struct intel_crtc_state *cstate);
2292 void intel_init_ipc(struct drm_i915_private *dev_priv);
2293 void intel_enable_ipc(struct drm_i915_private *dev_priv);
2294
2295 /* intel_sdvo.c */
2296 bool intel_sdvo_port_enabled(struct drm_i915_private *dev_priv,
2297                              i915_reg_t sdvo_reg, enum pipe *pipe);
2298 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
2299                      i915_reg_t reg, enum port port);
2300
2301
2302 /* intel_sprite.c */
2303 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
2304                              int usecs);
2305 struct intel_plane *intel_sprite_plane_create(struct drm_i915_private *dev_priv,
2306                                               enum pipe pipe, int plane);
2307 int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
2308                                     struct drm_file *file_priv);
2309 void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state);
2310 void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state);
2311 int intel_plane_check_stride(const struct intel_plane_state *plane_state);
2312 int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state);
2313 int chv_plane_check_rotation(const struct intel_plane_state *plane_state);
2314 struct intel_plane *
2315 skl_universal_plane_create(struct drm_i915_private *dev_priv,
2316                            enum pipe pipe, enum plane_id plane_id);
2317
2318 static inline bool icl_is_nv12_y_plane(enum plane_id id)
2319 {
2320         /* Don't need to do a gen check, these planes are only available on gen11 */
2321         if (id == PLANE_SPRITE4 || id == PLANE_SPRITE5)
2322                 return true;
2323
2324         return false;
2325 }
2326
2327 static inline bool icl_is_hdr_plane(struct intel_plane *plane)
2328 {
2329         if (INTEL_GEN(to_i915(plane->base.dev)) < 11)
2330                 return false;
2331
2332         return plane->id < PLANE_SPRITE2;
2333 }
2334
2335 /* intel_tv.c */
2336 void intel_tv_init(struct drm_i915_private *dev_priv);
2337
2338 /* intel_atomic.c */
2339 int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
2340                                                 const struct drm_connector_state *state,
2341                                                 struct drm_property *property,
2342                                                 u64 *val);
2343 int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
2344                                                 struct drm_connector_state *state,
2345                                                 struct drm_property *property,
2346                                                 u64 val);
2347 int intel_digital_connector_atomic_check(struct drm_connector *conn,
2348                                          struct drm_connector_state *new_state);
2349 struct drm_connector_state *
2350 intel_digital_connector_duplicate_state(struct drm_connector *connector);
2351
2352 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
2353 void intel_crtc_destroy_state(struct drm_crtc *crtc,
2354                                struct drm_crtc_state *state);
2355 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
2356 void intel_atomic_state_clear(struct drm_atomic_state *);
2357
2358 static inline struct intel_crtc_state *
2359 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
2360                             struct intel_crtc *crtc)
2361 {
2362         struct drm_crtc_state *crtc_state;
2363         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
2364         if (IS_ERR(crtc_state))
2365                 return ERR_CAST(crtc_state);
2366
2367         return to_intel_crtc_state(crtc_state);
2368 }
2369
2370 int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
2371                                struct intel_crtc *intel_crtc,
2372                                struct intel_crtc_state *crtc_state);
2373
2374 /* intel_atomic_plane.c */
2375 struct intel_plane *intel_plane_alloc(void);
2376 void intel_plane_free(struct intel_plane *plane);
2377 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
2378 void intel_plane_destroy_state(struct drm_plane *plane,
2379                                struct drm_plane_state *state);
2380 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
2381 void skl_update_planes_on_crtc(struct intel_atomic_state *state,
2382                                struct intel_crtc *crtc);
2383 void i9xx_update_planes_on_crtc(struct intel_atomic_state *state,
2384                                 struct intel_crtc *crtc);
2385 int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
2386                                         struct intel_crtc_state *crtc_state,
2387                                         const struct intel_plane_state *old_plane_state,
2388                                         struct intel_plane_state *intel_state);
2389
2390 /* intel_color.c */
2391 void intel_color_init(struct intel_crtc *crtc);
2392 int intel_color_check(struct intel_crtc_state *crtc_state);
2393 void intel_color_commit(const struct intel_crtc_state *crtc_state);
2394 void intel_color_load_luts(const struct intel_crtc_state *crtc_state);
2395
2396 /* intel_lspcon.c */
2397 bool lspcon_init(struct intel_digital_port *intel_dig_port);
2398 void lspcon_resume(struct intel_lspcon *lspcon);
2399 void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
2400 void lspcon_write_infoframe(struct intel_encoder *encoder,
2401                             const struct intel_crtc_state *crtc_state,
2402                             unsigned int type,
2403                             const void *buf, ssize_t len);
2404 void lspcon_set_infoframes(struct intel_encoder *encoder,
2405                            bool enable,
2406                            const struct intel_crtc_state *crtc_state,
2407                            const struct drm_connector_state *conn_state);
2408 bool lspcon_infoframe_enabled(struct intel_encoder *encoder,
2409                               const struct intel_crtc_state *pipe_config);
2410 void lspcon_ycbcr420_config(struct drm_connector *connector,
2411                             struct intel_crtc_state *crtc_state);
2412
2413 /* intel_pipe_crc.c */
2414 #ifdef CONFIG_DEBUG_FS
2415 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name);
2416 int intel_crtc_verify_crc_source(struct drm_crtc *crtc,
2417                                  const char *source_name, size_t *values_cnt);
2418 const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,
2419                                               size_t *count);
2420 void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc);
2421 void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc);
2422 #else
2423 #define intel_crtc_set_crc_source NULL
2424 #define intel_crtc_verify_crc_source NULL
2425 #define intel_crtc_get_crc_sources NULL
2426 static inline void intel_crtc_disable_pipe_crc(struct intel_crtc *crtc)
2427 {
2428 }
2429
2430 static inline void intel_crtc_enable_pipe_crc(struct intel_crtc *crtc)
2431 {
2432 }
2433 #endif
2434 #endif /* __INTEL_DRV_H__ */