drivers/gpu/drm/i915/intel_drv.h

   1 /*
   2  * Copyright (c) 2006 Dave Airlie <[email protected]>
   3  * Copyright (c) 2007-2008 Intel Corporation
   4  *   Jesse Barnes <[email protected]>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  23  * IN THE SOFTWARE.
  24  */
  25 #ifndef __INTEL_DRV_H__
  26 #define __INTEL_DRV_H__
  27
  28 #include <linux/async.h>
  29 #include <linux/i2c.h>
  30 #include <linux/hdmi.h>
  31 #include <linux/sched/clock.h>
  32 #include <drm/i915_drm.h>
  33 #include "i915_drv.h"
  34 #include <drm/drm_crtc.h>
  35 #include <drm/drm_crtc_helper.h>
  36 #include <drm/drm_encoder.h>
  37 #include <drm/drm_fb_helper.h>
  38 #include <drm/drm_dp_dual_mode_helper.h>
  39 #include <drm/drm_dp_mst_helper.h>
  40 #include <drm/drm_rect.h>
  41 #include <drm/drm_atomic.h>
  42
  43 /**
  44  * __wait_for - magic wait macro
  45  *
  46  * Macro to help avoid open coding check/wait/timeout patterns. Note that it's
  47  * important that we check the condition again after having timed out, since the
  48  * timeout could be due to preemption or similar and we've never had a chance to
  49  * check the condition before the timeout.
  50  */
  51 #define __wait_for(OP, COND, US, Wmin, Wmax) ({ \
  52         unsigned long timeout__ = jiffies + usecs_to_jiffies(US) + 1;   \
  53         long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \
  54         int ret__;                                                      \
  55         might_sleep();                                                  \
  56         for (;;) {                                                      \
  57                 bool expired__ = time_after(jiffies, timeout__);        \
  58                 OP;                                                     \
  59                 if (COND) {                                             \
  60                         ret__ = 0;                                      \
  61                         break;                                          \
  62                 }                                                       \
  63                 if (expired__) {                                        \
  64                         ret__ = -ETIMEDOUT;                             \
  65                         break;                                          \
  66                 }                                                       \
  67                 usleep_range(wait__, wait__ * 2);                       \
  68                 if (wait__ < (Wmax))                                    \
  69                         wait__ <<= 1;                                   \
  70         }                                                               \
  71         ret__;                                                          \
  72 })
  73
  74 #define _wait_for(COND, US, Wmin, Wmax) __wait_for(, (COND), (US), (Wmin), \
  75                                                    (Wmax))
  76 #define wait_for(COND, MS)              _wait_for((COND), (MS) * 1000, 10, 1000)
  77
  78 /* If CONFIG_PREEMPT_COUNT is disabled, in_atomic() always reports false. */
  79 #if defined(CONFIG_DRM_I915_DEBUG) && defined(CONFIG_PREEMPT_COUNT)
  80 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) WARN_ON_ONCE((ATOMIC) && !in_atomic())
  81 #else
  82 # define _WAIT_FOR_ATOMIC_CHECK(ATOMIC) do { } while (0)
  83 #endif
  84
  85 #define _wait_for_atomic(COND, US, ATOMIC) \
  86 ({ \
  87         int cpu, ret, timeout = (US) * 1000; \
  88         u64 base; \
  89         _WAIT_FOR_ATOMIC_CHECK(ATOMIC); \
  90         if (!(ATOMIC)) { \
  91                 preempt_disable(); \
  92                 cpu = smp_processor_id(); \
  93         } \
  94         base = local_clock(); \
  95         for (;;) { \
  96                 u64 now = local_clock(); \
  97                 if (!(ATOMIC)) \
  98                         preempt_enable(); \
  99                 if (COND) { \
 100                         ret = 0; \
 101                         break; \
 102                 } \
 103                 if (now - base >= timeout) { \
 104                         ret = -ETIMEDOUT; \
 105                         break; \
 106                 } \
 107                 cpu_relax(); \
 108                 if (!(ATOMIC)) { \
 109                         preempt_disable(); \
 110                         if (unlikely(cpu != smp_processor_id())) { \
 111                                 timeout -= now - base; \
 112                                 cpu = smp_processor_id(); \
 113                                 base = local_clock(); \
 114                         } \
 115                 } \
 116         } \
 117         ret; \
 118 })
 119
 120 #define wait_for_us(COND, US) \
 121 ({ \
 122         int ret__; \
 123         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 124         if ((US) > 10) \
 125                 ret__ = _wait_for((COND), (US), 10, 10); \
 126         else \
 127                 ret__ = _wait_for_atomic((COND), (US), 0); \
 128         ret__; \
 129 })
 130
 131 #define wait_for_atomic_us(COND, US) \
 132 ({ \
 133         BUILD_BUG_ON(!__builtin_constant_p(US)); \
 134         BUILD_BUG_ON((US) > 50000); \
 135         _wait_for_atomic((COND), (US), 1); \
 136 })
 137
 138 #define wait_for_atomic(COND, MS) wait_for_atomic_us((COND), (MS) * 1000)
 139
 140 #define KHz(x) (1000 * (x))
 141 #define MHz(x) KHz(1000 * (x))
 142
 143 /*
 144  * Display related stuff
 145  */
 146
 147 /* store information about an Ixxx DVO */
 148 /* The i830->i865 use multiple DVOs with multiple i2cs */
 149 /* the i915, i945 have a single sDVO i2c bus - which is different */
 150 #define MAX_OUTPUTS 6
 151 /* maximum connectors per crtcs in the mode set */
 152
 153 /* Maximum cursor sizes */
 154 #define GEN2_CURSOR_WIDTH 64
 155 #define GEN2_CURSOR_HEIGHT 64
 156 #define MAX_CURSOR_WIDTH 256
 157 #define MAX_CURSOR_HEIGHT 256
 158
 159 #define INTEL_I2C_BUS_DVO 1
 160 #define INTEL_I2C_BUS_SDVO 2
 161
 162 /* these are outputs from the chip - integrated only
 163    external chips are via DVO or SDVO output */
 164 enum intel_output_type {
 165         INTEL_OUTPUT_UNUSED = 0,
 166         INTEL_OUTPUT_ANALOG = 1,
 167         INTEL_OUTPUT_DVO = 2,
 168         INTEL_OUTPUT_SDVO = 3,
 169         INTEL_OUTPUT_LVDS = 4,
 170         INTEL_OUTPUT_TVOUT = 5,
 171         INTEL_OUTPUT_HDMI = 6,
 172         INTEL_OUTPUT_DP = 7,
 173         INTEL_OUTPUT_EDP = 8,
 174         INTEL_OUTPUT_DSI = 9,
 175         INTEL_OUTPUT_DDI = 10,
 176         INTEL_OUTPUT_DP_MST = 11,
 177 };
 178
 179 #define INTEL_DVO_CHIP_NONE 0
 180 #define INTEL_DVO_CHIP_LVDS 1
 181 #define INTEL_DVO_CHIP_TMDS 2
 182 #define INTEL_DVO_CHIP_TVOUT 4
 183
 184 #define INTEL_DSI_VIDEO_MODE    0
 185 #define INTEL_DSI_COMMAND_MODE  1
 186
 187 struct intel_framebuffer {
 188         struct drm_framebuffer base;
 189         struct drm_i915_gem_object *obj;
 190         struct intel_rotation_info rot_info;
 191
 192         /* for each plane in the normal GTT view */
 193         struct {
 194                 unsigned int x, y;
 195         } normal[2];
 196         /* for each plane in the rotated GTT view */
 197         struct {
 198                 unsigned int x, y;
 199                 unsigned int pitch; /* pixels */
 200         } rotated[2];
 201 };
 202
 203 struct intel_fbdev {
 204         struct drm_fb_helper helper;
 205         struct intel_framebuffer *fb;
 206         struct i915_vma *vma;
 207         unsigned long vma_flags;
 208         async_cookie_t cookie;
 209         int preferred_bpp;
 210 };
 211
 212 struct intel_encoder {
 213         struct drm_encoder base;
 214
 215         enum intel_output_type type;
 216         enum port port;
 217         unsigned int cloneable;
 218         bool (*hotplug)(struct intel_encoder *encoder,
 219                         struct intel_connector *connector);
 220         enum intel_output_type (*compute_output_type)(struct intel_encoder *,
 221                                                       struct intel_crtc_state *,
 222                                                       struct drm_connector_state *);
 223         bool (*compute_config)(struct intel_encoder *,
 224                                struct intel_crtc_state *,
 225                                struct drm_connector_state *);
 226         void (*pre_pll_enable)(struct intel_encoder *,
 227                                const struct intel_crtc_state *,
 228                                const struct drm_connector_state *);
 229         void (*pre_enable)(struct intel_encoder *,
 230                            const struct intel_crtc_state *,
 231                            const struct drm_connector_state *);
 232         void (*enable)(struct intel_encoder *,
 233                        const struct intel_crtc_state *,
 234                        const struct drm_connector_state *);
 235         void (*disable)(struct intel_encoder *,
 236                         const struct intel_crtc_state *,
 237                         const struct drm_connector_state *);
 238         void (*post_disable)(struct intel_encoder *,
 239                              const struct intel_crtc_state *,
 240                              const struct drm_connector_state *);
 241         void (*post_pll_disable)(struct intel_encoder *,
 242                                  const struct intel_crtc_state *,
 243                                  const struct drm_connector_state *);
 244         /* Read out the current hw state of this connector, returning true if
 245          * the encoder is active. If the encoder is enabled it also set the pipe
 246          * it is connected to in the pipe parameter. */
 247         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
 248         /* Reconstructs the equivalent mode flags for the current hardware
 249          * state. This must be called _after_ display->get_pipe_config has
 250          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
 251          * be set correctly before calling this function. */
 252         void (*get_config)(struct intel_encoder *,
 253                            struct intel_crtc_state *pipe_config);
 254         /* Returns a mask of power domains that need to be referenced as part
 255          * of the hardware state readout code. */
 256         u64 (*get_power_domains)(struct intel_encoder *encoder);
 257         /*
 258          * Called during system suspend after all pending requests for the
 259          * encoder are flushed (for example for DP AUX transactions) and
 260          * device interrupts are disabled.
 261          */
 262         void (*suspend)(struct intel_encoder *);
 263         int crtc_mask;
 264         enum hpd_pin hpd_pin;
 265         enum intel_display_power_domain power_domain;
 266         /* for communication with audio component; protected by av_mutex */
 267         const struct drm_connector *audio_connector;
 268 };
 269
 270 struct intel_panel {
 271         struct drm_display_mode *fixed_mode;
 272         struct drm_display_mode *alt_fixed_mode;
 273         struct drm_display_mode *downclock_mode;
 274
 275         /* backlight */
 276         struct {
 277                 bool present;
 278                 u32 level;
 279                 u32 min;
 280                 u32 max;
 281                 bool enabled;
 282                 bool combination_mode;  /* gen 2/4 only */
 283                 bool active_low_pwm;
 284                 bool alternate_pwm_increment;   /* lpt+ */
 285
 286                 /* PWM chip */
 287                 bool util_pin_active_low;       /* bxt+ */
 288                 u8 controller;          /* bxt+ only */
 289                 struct pwm_device *pwm;
 290
 291                 struct backlight_device *device;
 292
 293                 /* Connector and platform specific backlight functions */
 294                 int (*setup)(struct intel_connector *connector, enum pipe pipe);
 295                 uint32_t (*get)(struct intel_connector *connector);
 296                 void (*set)(const struct drm_connector_state *conn_state, uint32_t level);
 297                 void (*disable)(const struct drm_connector_state *conn_state);
 298                 void (*enable)(const struct intel_crtc_state *crtc_state,
 299                                const struct drm_connector_state *conn_state);
 300                 uint32_t (*hz_to_pwm)(struct intel_connector *connector,
 301                                       uint32_t hz);
 302                 void (*power)(struct intel_connector *, bool enable);
 303         } backlight;
 304 };
 305
 306 /*
 307  * This structure serves as a translation layer between the generic HDCP code
 308  * and the bus-specific code. What that means is that HDCP over HDMI differs
 309  * from HDCP over DP, so to account for these differences, we need to
 310  * communicate with the receiver through this shim.
 311  *
 312  * For completeness, the 2 buses differ in the following ways:
 313  *      - DP AUX vs. DDC
 314  *              HDCP registers on the receiver are set via DP AUX for DP, and
 315  *              they are set via DDC for HDMI.
 316  *      - Receiver register offsets
 317  *              The offsets of the registers are different for DP vs. HDMI
 318  *      - Receiver register masks/offsets
 319  *              For instance, the ready bit for the KSV fifo is in a different
 320  *              place on DP vs HDMI
 321  *      - Receiver register names
 322  *              Seriously. In the DP spec, the 16-bit register containing
 323  *              downstream information is called BINFO, on HDMI it's called
 324  *              BSTATUS. To confuse matters further, DP has a BSTATUS register
 325  *              with a completely different definition.
 326  *      - KSV FIFO
 327  *              On HDMI, the ksv fifo is read all at once, whereas on DP it must
 328  *              be read 3 keys at a time
 329  *      - Aksv output
 330  *              Since Aksv is hidden in hardware, there's different procedures
 331  *              to send it over DP AUX vs DDC
 332  */
 333 struct intel_hdcp_shim {
 334         /* Outputs the transmitter's An and Aksv values to the receiver. */
 335         int (*write_an_aksv)(struct intel_digital_port *intel_dig_port, u8 *an);
 336
 337         /* Reads the receiver's key selection vector */
 338         int (*read_bksv)(struct intel_digital_port *intel_dig_port, u8 *bksv);
 339
 340         /*
 341          * Reads BINFO from DP receivers and BSTATUS from HDMI receivers. The
 342          * definitions are the same in the respective specs, but the names are
 343          * different. Call it BSTATUS since that's the name the HDMI spec
 344          * uses and it was there first.
 345          */
 346         int (*read_bstatus)(struct intel_digital_port *intel_dig_port,
 347                             u8 *bstatus);
 348
 349         /* Determines whether a repeater is present downstream */
 350         int (*repeater_present)(struct intel_digital_port *intel_dig_port,
 351                                 bool *repeater_present);
 352
 353         /* Reads the receiver's Ri' value */
 354         int (*read_ri_prime)(struct intel_digital_port *intel_dig_port, u8 *ri);
 355
 356         /* Determines if the receiver's KSV FIFO is ready for consumption */
 357         int (*read_ksv_ready)(struct intel_digital_port *intel_dig_port,
 358                               bool *ksv_ready);
 359
 360         /* Reads the ksv fifo for num_downstream devices */
 361         int (*read_ksv_fifo)(struct intel_digital_port *intel_dig_port,
 362                              int num_downstream, u8 *ksv_fifo);
 363
 364         /* Reads a 32-bit part of V' from the receiver */
 365         int (*read_v_prime_part)(struct intel_digital_port *intel_dig_port,
 366                                  int i, u32 *part);
 367
 368         /* Enables HDCP signalling on the port */
 369         int (*toggle_signalling)(struct intel_digital_port *intel_dig_port,
 370                                  bool enable);
 371
 372         /* Ensures the link is still protected */
 373         bool (*check_link)(struct intel_digital_port *intel_dig_port);
 374
 375         /* Detects panel's hdcp capability. This is optional for HDMI. */
 376         int (*hdcp_capable)(struct intel_digital_port *intel_dig_port,
 377                             bool *hdcp_capable);
 378 };
 379
 380 struct intel_connector {
 381         struct drm_connector base;
 382         /*
 383          * The fixed encoder this connector is connected to.
 384          */
 385         struct intel_encoder *encoder;
 386
 387         /* ACPI device id for ACPI and driver cooperation */
 388         u32 acpi_device_id;
 389
 390         /* Reads out the current hw, returning true if the connector is enabled
 391          * and active (i.e. dpms ON state). */
 392         bool (*get_hw_state)(struct intel_connector *);
 393
 394         /* Panel info for eDP and LVDS */
 395         struct intel_panel panel;
 396
 397         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
 398         struct edid *edid;
 399         struct edid *detect_edid;
 400
 401         /* since POLL and HPD connectors may use the same HPD line keep the native
 402            state of connector->polled in case hotplug storm detection changes it */
 403         u8 polled;
 404
 405         void *port; /* store this opaque as its illegal to dereference it */
 406
 407         struct intel_dp *mst_port;
 408
 409         /* Work struct to schedule a uevent on link train failure */
 410         struct work_struct modeset_retry_work;
 411
 412         const struct intel_hdcp_shim *hdcp_shim;
 413         struct mutex hdcp_mutex;
 414         uint64_t hdcp_value; /* protected by hdcp_mutex */
 415         struct delayed_work hdcp_check_work;
 416         struct work_struct hdcp_prop_work;
 417 };
 418
 419 struct intel_digital_connector_state {
 420         struct drm_connector_state base;
 421
 422         enum hdmi_force_audio force_audio;
 423         int broadcast_rgb;
 424 };
 425
 426 #define to_intel_digital_connector_state(x) container_of(x, struct intel_digital_connector_state, base)
 427
 428 struct dpll {
 429         /* given values */
 430         int n;
 431         int m1, m2;
 432         int p1, p2;
 433         /* derived values */
 434         int     dot;
 435         int     vco;
 436         int     m;
 437         int     p;
 438 };
 439
 440 struct intel_atomic_state {
 441         struct drm_atomic_state base;
 442
 443         struct {
 444                 /*
 445                  * Logical state of cdclk (used for all scaling, watermark,
 446                  * etc. calculations and checks). This is computed as if all
 447                  * enabled crtcs were active.
 448                  */
 449                 struct intel_cdclk_state logical;
 450
 451                 /*
 452                  * Actual state of cdclk, can be different from the logical
 453                  * state only when all crtc's are DPMS off.
 454                  */
 455                 struct intel_cdclk_state actual;
 456         } cdclk;
 457
 458         bool dpll_set, modeset;
 459
 460         /*
 461          * Does this transaction change the pipes that are active?  This mask
 462          * tracks which CRTC's have changed their active state at the end of
 463          * the transaction (not counting the temporary disable during modesets).
 464          * This mask should only be non-zero when intel_state->modeset is true,
 465          * but the converse is not necessarily true; simply changing a mode may
 466          * not flip the final active status of any CRTC's
 467          */
 468         unsigned int active_pipe_changes;
 469
 470         unsigned int active_crtcs;
 471         /* minimum acceptable cdclk for each pipe */
 472         int min_cdclk[I915_MAX_PIPES];
 473         /* minimum acceptable voltage level for each pipe */
 474         u8 min_voltage_level[I915_MAX_PIPES];
 475
 476         struct intel_shared_dpll_state shared_dpll[I915_NUM_PLLS];
 477
 478         /*
 479          * Current watermarks can't be trusted during hardware readout, so
 480          * don't bother calculating intermediate watermarks.
 481          */
 482         bool skip_intermediate_wm;
 483
 484         /* Gen9+ only */
 485         struct skl_wm_values wm_results;
 486
 487         struct i915_sw_fence commit_ready;
 488
 489         struct llist_node freed;
 490 };
 491
 492 struct intel_plane_state {
 493         struct drm_plane_state base;
 494         struct i915_vma *vma;
 495         unsigned long flags;
 496 #define PLANE_HAS_FENCE BIT(0)
 497
 498         struct {
 499                 u32 offset;
 500                 int x, y;
 501         } main;
 502         struct {
 503                 u32 offset;
 504                 int x, y;
 505         } aux;
 506
 507         /* plane control register */
 508         u32 ctl;
 509
 510         /* plane color control register */
 511         u32 color_ctl;
 512
 513         /*
 514          * scaler_id
 515          *    = -1 : not using a scaler
 516          *    >=  0 : using a scalers
 517          *
 518          * plane requiring a scaler:
 519          *   - During check_plane, its bit is set in
 520          *     crtc_state->scaler_state.scaler_users by calling helper function
 521          *     update_scaler_plane.
 522          *   - scaler_id indicates the scaler it got assigned.
 523          *
 524          * plane doesn't require a scaler:
 525          *   - this can happen when scaling is no more required or plane simply
 526          *     got disabled.
 527          *   - During check_plane, corresponding bit is reset in
 528          *     crtc_state->scaler_state.scaler_users by calling helper function
 529          *     update_scaler_plane.
 530          */
 531         int scaler_id;
 532
 533         struct drm_intel_sprite_colorkey ckey;
 534 };
 535
 536 struct intel_initial_plane_config {
 537         struct intel_framebuffer *fb;
 538         unsigned int tiling;
 539         int size;
 540         u32 base;
 541 };
 542
 543 #define SKL_MIN_SRC_W 8
 544 #define SKL_MAX_SRC_W 4096
 545 #define SKL_MIN_SRC_H 8
 546 #define SKL_MAX_SRC_H 4096
 547 #define SKL_MIN_DST_W 8
 548 #define SKL_MAX_DST_W 4096
 549 #define SKL_MIN_DST_H 8
 550 #define SKL_MAX_DST_H 4096
 551
 552 struct intel_scaler {
 553         int in_use;
 554         uint32_t mode;
 555 };
 556
 557 struct intel_crtc_scaler_state {
 558 #define SKL_NUM_SCALERS 2
 559         struct intel_scaler scalers[SKL_NUM_SCALERS];
 560
 561         /*
 562          * scaler_users: keeps track of users requesting scalers on this crtc.
 563          *
 564          *     If a bit is set, a user is using a scaler.
 565          *     Here user can be a plane or crtc as defined below:
 566          *       bits 0-30 - plane (bit position is index from drm_plane_index)
 567          *       bit 31    - crtc
 568          *
 569          * Instead of creating a new index to cover planes and crtc, using
 570          * existing drm_plane_index for planes which is well less than 31
 571          * planes and bit 31 for crtc. This should be fine to cover all
 572          * our platforms.
 573          *
 574          * intel_atomic_setup_scalers will setup available scalers to users
 575          * requesting scalers. It will gracefully fail if request exceeds
 576          * avilability.
 577          */
 578 #define SKL_CRTC_INDEX 31
 579         unsigned scaler_users;
 580
 581         /* scaler used by crtc for panel fitting purpose */
 582         int scaler_id;
 583 };
 584
 585 /* drm_mode->private_flags */
 586 #define I915_MODE_FLAG_INHERITED 1
 587 /* Flag to get scanline using frame time stamps */
 588 #define I915_MODE_FLAG_GET_SCANLINE_FROM_TIMESTAMP (1<<1)
 589
 590 struct intel_pipe_wm {
 591         struct intel_wm_level wm[5];
 592         uint32_t linetime;
 593         bool fbc_wm_enabled;
 594         bool pipe_enabled;
 595         bool sprites_enabled;
 596         bool sprites_scaled;
 597 };
 598
 599 struct skl_plane_wm {
 600         struct skl_wm_level wm[8];
 601         struct skl_wm_level trans_wm;
 602 };
 603
 604 struct skl_pipe_wm {
 605         struct skl_plane_wm planes[I915_MAX_PLANES];
 606         uint32_t linetime;
 607 };
 608
 609 enum vlv_wm_level {
 610         VLV_WM_LEVEL_PM2,
 611         VLV_WM_LEVEL_PM5,
 612         VLV_WM_LEVEL_DDR_DVFS,
 613         NUM_VLV_WM_LEVELS,
 614 };
 615
 616 struct vlv_wm_state {
 617         struct g4x_pipe_wm wm[NUM_VLV_WM_LEVELS];
 618         struct g4x_sr_wm sr[NUM_VLV_WM_LEVELS];
 619         uint8_t num_levels;
 620         bool cxsr;
 621 };
 622
 623 struct vlv_fifo_state {
 624         u16 plane[I915_MAX_PLANES];
 625 };
 626
 627 enum g4x_wm_level {
 628         G4X_WM_LEVEL_NORMAL,
 629         G4X_WM_LEVEL_SR,
 630         G4X_WM_LEVEL_HPLL,
 631         NUM_G4X_WM_LEVELS,
 632 };
 633
 634 struct g4x_wm_state {
 635         struct g4x_pipe_wm wm;
 636         struct g4x_sr_wm sr;
 637         struct g4x_sr_wm hpll;
 638         bool cxsr;
 639         bool hpll_en;
 640         bool fbc_en;
 641 };
 642
 643 struct intel_crtc_wm_state {
 644         union {
 645                 struct {
 646                         /*
 647                          * Intermediate watermarks; these can be
 648                          * programmed immediately since they satisfy
 649                          * both the current configuration we're
 650                          * switching away from and the new
 651                          * configuration we're switching to.
 652                          */
 653                         struct intel_pipe_wm intermediate;
 654
 655                         /*
 656                          * Optimal watermarks, programmed post-vblank
 657                          * when this state is committed.
 658                          */
 659                         struct intel_pipe_wm optimal;
 660                 } ilk;
 661
 662                 struct {
 663                         /* gen9+ only needs 1-step wm programming */
 664                         struct skl_pipe_wm optimal;
 665                         struct skl_ddb_entry ddb;
 666                 } skl;
 667
 668                 struct {
 669                         /* "raw" watermarks (not inverted) */
 670                         struct g4x_pipe_wm raw[NUM_VLV_WM_LEVELS];
 671                         /* intermediate watermarks (inverted) */
 672                         struct vlv_wm_state intermediate;
 673                         /* optimal watermarks (inverted) */
 674                         struct vlv_wm_state optimal;
 675                         /* display FIFO split */
 676                         struct vlv_fifo_state fifo_state;
 677                 } vlv;
 678
 679                 struct {
 680                         /* "raw" watermarks */
 681                         struct g4x_pipe_wm raw[NUM_G4X_WM_LEVELS];
 682                         /* intermediate watermarks */
 683                         struct g4x_wm_state intermediate;
 684                         /* optimal watermarks */
 685                         struct g4x_wm_state optimal;
 686                 } g4x;
 687         };
 688
 689         /*
 690          * Platforms with two-step watermark programming will need to
 691          * update watermark programming post-vblank to switch from the
 692          * safe intermediate watermarks to the optimal final
 693          * watermarks.
 694          */
 695         bool need_postvbl_update;
 696 };
 697
 698 struct intel_crtc_state {
 699         struct drm_crtc_state base;
 700
 701         /**
 702          * quirks - bitfield with hw state readout quirks
 703          *
 704          * For various reasons the hw state readout code might not be able to
 705          * completely faithfully read out the current state. These cases are
 706          * tracked with quirk flags so that fastboot and state checker can act
 707          * accordingly.
 708          */
 709 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
 710         unsigned long quirks;
 711
 712         unsigned fb_bits; /* framebuffers to flip */
 713         bool update_pipe; /* can a fast modeset be performed? */
 714         bool disable_cxsr;
 715         bool update_wm_pre, update_wm_post; /* watermarks are updated */
 716         bool fb_changed; /* fb on any of the planes is changed */
 717         bool fifo_changed; /* FIFO split is changed */
 718
 719         /* Pipe source size (ie. panel fitter input size)
 720          * All planes will be positioned inside this space,
 721          * and get clipped at the edges. */
 722         int pipe_src_w, pipe_src_h;
 723
 724         /*
 725          * Pipe pixel rate, adjusted for
 726          * panel fitter/pipe scaler downscaling.
 727          */
 728         unsigned int pixel_rate;
 729
 730         /* Whether to set up the PCH/FDI. Note that we never allow sharing
 731          * between pch encoders and cpu encoders. */
 732         bool has_pch_encoder;
 733
 734         /* Are we sending infoframes on the attached port */
 735         bool has_infoframe;
 736
 737         /* CPU Transcoder for the pipe. Currently this can only differ from the
 738          * pipe on Haswell and later (where we have a special eDP transcoder)
 739          * and Broxton (where we have special DSI transcoders). */
 740         enum transcoder cpu_transcoder;
 741
 742         /*
 743          * Use reduced/limited/broadcast rbg range, compressing from the full
 744          * range fed into the crtcs.
 745          */
 746         bool limited_color_range;
 747
 748         /* Bitmask of encoder types (enum intel_output_type)
 749          * driven by the pipe.
 750          */
 751         unsigned int output_types;
 752
 753         /* Whether we should send NULL infoframes. Required for audio. */
 754         bool has_hdmi_sink;
 755
 756         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
 757          * has_dp_encoder is set. */
 758         bool has_audio;
 759
 760         /*
 761          * Enable dithering, used when the selected pipe bpp doesn't match the
 762          * plane bpp.
 763          */
 764         bool dither;
 765
 766         /*
 767          * Dither gets enabled for 18bpp which causes CRC mismatch errors for
 768          * compliance video pattern tests.
 769          * Disable dither only if it is a compliance test request for
 770          * 18bpp.
 771          */
 772         bool dither_force_disable;
 773
 774         /* Controls for the clock computation, to override various stages. */
 775         bool clock_set;
 776
 777         /* SDVO TV has a bunch of special case. To make multifunction encoders
 778          * work correctly, we need to track this at runtime.*/
 779         bool sdvo_tv_clock;
 780
 781         /*
 782          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
 783          * required. This is set in the 2nd loop of calling encoder's
 784          * ->compute_config if the first pick doesn't work out.
 785          */
 786         bool bw_constrained;
 787
 788         /* Settings for the intel dpll used on pretty much everything but
 789          * haswell. */
 790         struct dpll dpll;
 791
 792         /* Selected dpll when shared or NULL. */
 793         struct intel_shared_dpll *shared_dpll;
 794
 795         /* Actual register state of the dpll, for shared dpll cross-checking. */
 796         struct intel_dpll_hw_state dpll_hw_state;
 797
 798         /* DSI PLL registers */
 799         struct {
 800                 u32 ctrl, div;
 801         } dsi_pll;
 802
 803         int pipe_bpp;
 804         struct intel_link_m_n dp_m_n;
 805
 806         /* m2_n2 for eDP downclock */
 807         struct intel_link_m_n dp_m2_n2;
 808         bool has_drrs;
 809
 810         bool has_psr;
 811         bool has_psr2;
 812
 813         /*
 814          * Frequence the dpll for the port should run at. Differs from the
 815          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
 816          * already multiplied by pixel_multiplier.
 817          */
 818         int port_clock;
 819
 820         /* Used by SDVO (and if we ever fix it, HDMI). */
 821         unsigned pixel_multiplier;
 822
 823         uint8_t lane_count;
 824
 825         /*
 826          * Used by platforms having DP/HDMI PHY with programmable lane
 827          * latency optimization.
 828          */
 829         uint8_t lane_lat_optim_mask;
 830
 831         /* minimum acceptable voltage level */
 832         u8 min_voltage_level;
 833
 834         /* Panel fitter controls for gen2-gen4 + VLV */
 835         struct {
 836                 u32 control;
 837                 u32 pgm_ratios;
 838                 u32 lvds_border_bits;
 839         } gmch_pfit;
 840
 841         /* Panel fitter placement and size for Ironlake+ */
 842         struct {
 843                 u32 pos;
 844                 u32 size;
 845                 bool enabled;
 846                 bool force_thru;
 847         } pch_pfit;
 848
 849         /* FDI configuration, only valid if has_pch_encoder is set. */
 850         int fdi_lanes;
 851         struct intel_link_m_n fdi_m_n;
 852
 853         bool ips_enabled;
 854         bool ips_force_disable;
 855
 856         bool enable_fbc;
 857
 858         bool double_wide;
 859
 860         int pbn;
 861
 862         struct intel_crtc_scaler_state scaler_state;
 863
 864         /* w/a for waiting 2 vblanks during crtc enable */
 865         enum pipe hsw_workaround_pipe;
 866
 867         /* IVB sprite scaling w/a (WaCxSRDisabledForSpriteScaling:ivb) */
 868         bool disable_lp_wm;
 869
 870         struct intel_crtc_wm_state wm;
 871
 872         /* Gamma mode programmed on the pipe */
 873         uint32_t gamma_mode;
 874
 875         /* bitmask of visible planes (enum plane_id) */
 876         u8 active_planes;
 877
 878         /* HDMI scrambling status */
 879         bool hdmi_scrambling;
 880
 881         /* HDMI High TMDS char rate ratio */
 882         bool hdmi_high_tmds_clock_ratio;
 883
 884         /* output format is YCBCR 4:2:0 */
 885         bool ycbcr420;
 886 };
 887
 888 struct intel_crtc {
 889         struct drm_crtc base;
 890         enum pipe pipe;
 891         /*
 892          * Whether the crtc and the connected output pipeline is active. Implies
 893          * that crtc->enabled is set, i.e. the current mode configuration has
 894          * some outputs connected to this crtc.
 895          */
 896         bool active;
 897         u8 plane_ids_mask;
 898         unsigned long long enabled_power_domains;
 899         struct intel_overlay *overlay;
 900
 901         struct intel_crtc_state *config;
 902
 903         /* global reset count when the last flip was submitted */
 904         unsigned int reset_count;
 905
 906         /* Access to these should be protected by dev_priv->irq_lock. */
 907         bool cpu_fifo_underrun_disabled;
 908         bool pch_fifo_underrun_disabled;
 909
 910         /* per-pipe watermark state */
 911         struct {
 912                 /* watermarks currently being used  */
 913                 union {
 914                         struct intel_pipe_wm ilk;
 915                         struct vlv_wm_state vlv;
 916                         struct g4x_wm_state g4x;
 917                 } active;
 918         } wm;
 919
 920         int scanline_offset;
 921
 922         struct {
 923                 unsigned start_vbl_count;
 924                 ktime_t start_vbl_time;
 925                 int min_vbl, max_vbl;
 926                 int scanline_start;
 927         } debug;
 928
 929         /* scalers available on this crtc */
 930         int num_scalers;
 931 };
 932
 933 struct intel_plane {
 934         struct drm_plane base;
 935         enum i9xx_plane_id i9xx_plane;
 936         enum plane_id id;
 937         enum pipe pipe;
 938         bool can_scale;
 939         bool has_fbc;
 940         int max_downscale;
 941         uint32_t frontbuffer_bit;
 942
 943         struct {
 944                 u32 base, cntl, size;
 945         } cursor;
 946
 947         /*
 948          * NOTE: Do not place new plane state fields here (e.g., when adding
 949          * new plane properties).  New runtime state should now be placed in
 950          * the intel_plane_state structure and accessed via plane_state.
 951          */
 952
 953         void (*update_plane)(struct intel_plane *plane,
 954                              const struct intel_crtc_state *crtc_state,
 955                              const struct intel_plane_state *plane_state);
 956         void (*disable_plane)(struct intel_plane *plane,
 957                               struct intel_crtc *crtc);
 958         bool (*get_hw_state)(struct intel_plane *plane);
 959         int (*check_plane)(struct intel_plane *plane,
 960                            struct intel_crtc_state *crtc_state,
 961                            struct intel_plane_state *state);
 962 };
 963
 964 struct intel_watermark_params {
 965         u16 fifo_size;
 966         u16 max_wm;
 967         u8 default_wm;
 968         u8 guard_size;
 969         u8 cacheline_size;
 970 };
 971
 972 struct cxsr_latency {
 973         bool is_desktop : 1;
 974         bool is_ddr3 : 1;
 975         u16 fsb_freq;
 976         u16 mem_freq;
 977         u16 display_sr;
 978         u16 display_hpll_disable;
 979         u16 cursor_sr;
 980         u16 cursor_hpll_disable;
 981 };
 982
 983 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
 984 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 985 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
 986 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 987 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 988 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
 989 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
 990 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
 991 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
 992
 993 struct intel_hdmi {
 994         i915_reg_t hdmi_reg;
 995         int ddc_bus;
 996         struct {
 997                 enum drm_dp_dual_mode_type type;
 998                 int max_tmds_clock;
 999         } dp_dual_mode;
1000         bool has_hdmi_sink;
1001         bool has_audio;
1002         bool rgb_quant_range_selectable;
1003         struct intel_connector *attached_connector;
1004 };
1005
1006 struct intel_dp_mst_encoder;
1007 #define DP_MAX_DOWNSTREAM_PORTS         0x10
1008
1009 /*
1010  * enum link_m_n_set:
1011  *      When platform provides two set of M_N registers for dp, we can
1012  *      program them and switch between them incase of DRRS.
1013  *      But When only one such register is provided, we have to program the
1014  *      required divider value on that registers itself based on the DRRS state.
1015  *
1016  * M1_N1        : Program dp_m_n on M1_N1 registers
1017  *                        dp_m2_n2 on M2_N2 registers (If supported)
1018  *
1019  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
1020  *                        M2_N2 registers are not supported
1021  */
1022
1023 enum link_m_n_set {
1024         /* Sets the m1_n1 and m2_n2 */
1025         M1_N1 = 0,
1026         M2_N2
1027 };
1028
1029 struct intel_dp_compliance_data {
1030         unsigned long edid;
1031         uint8_t video_pattern;
1032         uint16_t hdisplay, vdisplay;
1033         uint8_t bpc;
1034 };
1035
1036 struct intel_dp_compliance {
1037         unsigned long test_type;
1038         struct intel_dp_compliance_data test_data;
1039         bool test_active;
1040         int test_link_rate;
1041         u8 test_lane_count;
1042 };
1043
1044 struct intel_dp {
1045         i915_reg_t output_reg;
1046         uint32_t DP;
1047         int link_rate;
1048         uint8_t lane_count;
1049         uint8_t sink_count;
1050         bool link_mst;
1051         bool link_trained;
1052         bool has_audio;
1053         bool detect_done;
1054         bool reset_link_params;
1055         enum aux_ch aux_ch;
1056         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
1057         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
1058         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
1059         uint8_t edp_dpcd[EDP_DISPLAY_CTL_CAP_SIZE];
1060         /* source rates */
1061         int num_source_rates;
1062         const int *source_rates;
1063         /* sink rates as reported by DP_MAX_LINK_RATE/DP_SUPPORTED_LINK_RATES */
1064         int num_sink_rates;
1065         int sink_rates[DP_MAX_SUPPORTED_RATES];
1066         bool use_rate_select;
1067         /* intersection of source and sink rates */
1068         int num_common_rates;
1069         int common_rates[DP_MAX_SUPPORTED_RATES];
1070         /* Max lane count for the current link */
1071         int max_link_lane_count;
1072         /* Max rate for the current link */
1073         int max_link_rate;
1074         /* sink or branch descriptor */
1075         struct drm_dp_desc desc;
1076         struct drm_dp_aux aux;
1077         enum intel_display_power_domain aux_power_domain;
1078         uint8_t train_set[4];
1079         int panel_power_up_delay;
1080         int panel_power_down_delay;
1081         int panel_power_cycle_delay;
1082         int backlight_on_delay;
1083         int backlight_off_delay;
1084         struct delayed_work panel_vdd_work;
1085         bool want_panel_vdd;
1086         unsigned long last_power_on;
1087         unsigned long last_backlight_off;
1088         ktime_t panel_power_off_time;
1089
1090         struct notifier_block edp_notifier;
1091
1092         /*
1093          * Pipe whose power sequencer is currently locked into
1094          * this port. Only relevant on VLV/CHV.
1095          */
1096         enum pipe pps_pipe;
1097         /*
1098          * Pipe currently driving the port. Used for preventing
1099          * the use of the PPS for any pipe currentrly driving
1100          * external DP as that will mess things up on VLV.
1101          */
1102         enum pipe active_pipe;
1103         /*
1104          * Set if the sequencer may be reset due to a power transition,
1105          * requiring a reinitialization. Only relevant on BXT.
1106          */
1107         bool pps_reset;
1108         struct edp_power_seq pps_delays;
1109
1110         bool can_mst; /* this port supports mst */
1111         bool is_mst;
1112         int active_mst_links;
1113         /* connector directly attached - won't be use for modeset in mst world */
1114         struct intel_connector *attached_connector;
1115
1116         /* mst connector list */
1117         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
1118         struct drm_dp_mst_topology_mgr mst_mgr;
1119
1120         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
1121         /*
1122          * This function returns the value we have to program the AUX_CTL
1123          * register with to kick off an AUX transaction.
1124          */
1125         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
1126                                      bool has_aux_irq,
1127                                      int send_bytes,
1128                                      uint32_t aux_clock_divider);
1129
1130         i915_reg_t (*aux_ch_ctl_reg)(struct intel_dp *dp);
1131         i915_reg_t (*aux_ch_data_reg)(struct intel_dp *dp, int index);
1132
1133         /* This is called before a link training is starterd */
1134         void (*prepare_link_retrain)(struct intel_dp *intel_dp);
1135
1136         /* Displayport compliance testing */
1137         struct intel_dp_compliance compliance;
1138 };
1139
1140 struct intel_lspcon {
1141         bool active;
1142         enum drm_lspcon_mode mode;
1143 };
1144
1145 struct intel_digital_port {
1146         struct intel_encoder base;
1147         u32 saved_port_bits;
1148         struct intel_dp dp;
1149         struct intel_hdmi hdmi;
1150         struct intel_lspcon lspcon;
1151         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
1152         bool release_cl2_override;
1153         uint8_t max_lanes;
1154         enum intel_display_power_domain ddi_io_power_domain;
1155
1156         void (*write_infoframe)(struct drm_encoder *encoder,
1157                                 const struct intel_crtc_state *crtc_state,
1158                                 unsigned int type,
1159                                 const void *frame, ssize_t len);
1160         void (*set_infoframes)(struct drm_encoder *encoder,
1161                                bool enable,
1162                                const struct intel_crtc_state *crtc_state,
1163                                const struct drm_connector_state *conn_state);
1164         bool (*infoframe_enabled)(struct drm_encoder *encoder,
1165                                   const struct intel_crtc_state *pipe_config);
1166 };
1167
1168 struct intel_dp_mst_encoder {
1169         struct intel_encoder base;
1170         enum pipe pipe;
1171         struct intel_digital_port *primary;
1172         struct intel_connector *connector;
1173 };
1174
1175 static inline enum dpio_channel
1176 vlv_dport_to_channel(struct intel_digital_port *dport)
1177 {
1178         switch (dport->base.port) {
1179         case PORT_B:
1180         case PORT_D:
1181                 return DPIO_CH0;
1182         case PORT_C:
1183                 return DPIO_CH1;
1184         default:
1185                 BUG();
1186         }
1187 }
1188
1189 static inline enum dpio_phy
1190 vlv_dport_to_phy(struct intel_digital_port *dport)
1191 {
1192         switch (dport->base.port) {
1193         case PORT_B:
1194         case PORT_C:
1195                 return DPIO_PHY0;
1196         case PORT_D:
1197                 return DPIO_PHY1;
1198         default:
1199                 BUG();
1200         }
1201 }
1202
1203 static inline enum dpio_channel
1204 vlv_pipe_to_channel(enum pipe pipe)
1205 {
1206         switch (pipe) {
1207         case PIPE_A:
1208         case PIPE_C:
1209                 return DPIO_CH0;
1210         case PIPE_B:
1211                 return DPIO_CH1;
1212         default:
1213                 BUG();
1214         }
1215 }
1216
1217 static inline struct intel_crtc *
1218 intel_get_crtc_for_pipe(struct drm_i915_private *dev_priv, enum pipe pipe)
1219 {
1220         return dev_priv->pipe_to_crtc_mapping[pipe];
1221 }
1222
1223 static inline struct intel_crtc *
1224 intel_get_crtc_for_plane(struct drm_i915_private *dev_priv, enum i9xx_plane_id plane)
1225 {
1226         return dev_priv->plane_to_crtc_mapping[plane];
1227 }
1228
1229 struct intel_load_detect_pipe {
1230         struct drm_atomic_state *restore_state;
1231 };
1232
1233 static inline struct intel_encoder *
1234 intel_attached_encoder(struct drm_connector *connector)
1235 {
1236         return to_intel_connector(connector)->encoder;
1237 }
1238
1239 static inline struct intel_digital_port *
1240 enc_to_dig_port(struct drm_encoder *encoder)
1241 {
1242         struct intel_encoder *intel_encoder = to_intel_encoder(encoder);
1243
1244         switch (intel_encoder->type) {
1245         case INTEL_OUTPUT_DDI:
1246                 WARN_ON(!HAS_DDI(to_i915(encoder->dev)));
1247         case INTEL_OUTPUT_DP:
1248         case INTEL_OUTPUT_EDP:
1249         case INTEL_OUTPUT_HDMI:
1250                 return container_of(encoder, struct intel_digital_port,
1251                                     base.base);
1252         default:
1253                 return NULL;
1254         }
1255 }
1256
1257 static inline struct intel_dp_mst_encoder *
1258 enc_to_mst(struct drm_encoder *encoder)
1259 {
1260         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
1261 }
1262
1263 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
1264 {
1265         return &enc_to_dig_port(encoder)->dp;
1266 }
1267
1268 static inline struct intel_digital_port *
1269 dp_to_dig_port(struct intel_dp *intel_dp)
1270 {
1271         return container_of(intel_dp, struct intel_digital_port, dp);
1272 }
1273
1274 static inline struct intel_lspcon *
1275 dp_to_lspcon(struct intel_dp *intel_dp)
1276 {
1277         return &dp_to_dig_port(intel_dp)->lspcon;
1278 }
1279
1280 static inline struct intel_digital_port *
1281 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
1282 {
1283         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
1284 }
1285
1286 static inline struct intel_plane_state *
1287 intel_atomic_get_new_plane_state(struct intel_atomic_state *state,
1288                                  struct intel_plane *plane)
1289 {
1290         return to_intel_plane_state(drm_atomic_get_new_plane_state(&state->base,
1291                                                                    &plane->base));
1292 }
1293
1294 static inline struct intel_crtc_state *
1295 intel_atomic_get_old_crtc_state(struct intel_atomic_state *state,
1296                                 struct intel_crtc *crtc)
1297 {
1298         return to_intel_crtc_state(drm_atomic_get_old_crtc_state(&state->base,
1299                                                                  &crtc->base));
1300 }
1301
1302 static inline struct intel_crtc_state *
1303 intel_atomic_get_new_crtc_state(struct intel_atomic_state *state,
1304                                 struct intel_crtc *crtc)
1305 {
1306         return to_intel_crtc_state(drm_atomic_get_new_crtc_state(&state->base,
1307                                                                  &crtc->base));
1308 }
1309
1310 /* intel_fifo_underrun.c */
1311 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1312                                            enum pipe pipe, bool enable);
1313 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
1314                                            enum pipe pch_transcoder,
1315                                            bool enable);
1316 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1317                                          enum pipe pipe);
1318 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
1319                                          enum pipe pch_transcoder);
1320 void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
1321 void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);
1322
1323 /* i915_irq.c */
1324 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1325 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
1326 void gen6_mask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1327 void gen6_unmask_pm_irq(struct drm_i915_private *dev_priv, u32 mask);
1328 void gen6_reset_rps_interrupts(struct drm_i915_private *dev_priv);
1329 void gen6_enable_rps_interrupts(struct drm_i915_private *dev_priv);
1330 void gen6_disable_rps_interrupts(struct drm_i915_private *dev_priv);
1331
1332 static inline u32 gen6_sanitize_rps_pm_mask(const struct drm_i915_private *i915,
1333                                             u32 mask)
1334 {
1335         return mask & ~i915->gt_pm.rps.pm_intrmsk_mbz;
1336 }
1337
1338 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
1339 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
1340 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
1341 {
1342         /*
1343          * We only use drm_irq_uninstall() at unload and VT switch, so
1344          * this is the only thing we need to check.
1345          */
1346         return dev_priv->runtime_pm.irqs_enabled;
1347 }
1348
1349 int intel_get_crtc_scanline(struct intel_crtc *crtc);
1350 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
1351                                      u8 pipe_mask);
1352 void gen8_irq_power_well_pre_disable(struct drm_i915_private *dev_priv,
1353                                      u8 pipe_mask);
1354 void gen9_reset_guc_interrupts(struct drm_i915_private *dev_priv);
1355 void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv);
1356 void gen9_disable_guc_interrupts(struct drm_i915_private *dev_priv);
1357
1358 /* intel_crt.c */
1359 void intel_crt_init(struct drm_i915_private *dev_priv);
1360 void intel_crt_reset(struct drm_encoder *encoder);
1361
1362 /* intel_ddi.c */
1363 void intel_ddi_fdi_post_disable(struct intel_encoder *intel_encoder,
1364                                 const struct intel_crtc_state *old_crtc_state,
1365                                 const struct drm_connector_state *old_conn_state);
1366 void hsw_fdi_link_train(struct intel_crtc *crtc,
1367                         const struct intel_crtc_state *crtc_state);
1368 void intel_ddi_init(struct drm_i915_private *dev_priv, enum port port);
1369 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
1370 void intel_ddi_enable_transcoder_func(const struct intel_crtc_state *crtc_state);
1371 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
1372                                        enum transcoder cpu_transcoder);
1373 void intel_ddi_enable_pipe_clock(const struct intel_crtc_state *crtc_state);
1374 void intel_ddi_disable_pipe_clock(const  struct intel_crtc_state *crtc_state);
1375 struct intel_encoder *
1376 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
1377 void intel_ddi_set_pipe_settings(const struct intel_crtc_state *crtc_state);
1378 void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
1379 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
1380 void intel_ddi_get_config(struct intel_encoder *encoder,
1381                           struct intel_crtc_state *pipe_config);
1382
1383 void intel_ddi_set_vc_payload_alloc(const struct intel_crtc_state *crtc_state,
1384                                     bool state);
1385 void intel_ddi_compute_min_voltage_level(struct drm_i915_private *dev_priv,
1386                                          struct intel_crtc_state *crtc_state);
1387 u32 bxt_signal_levels(struct intel_dp *intel_dp);
1388 uint32_t ddi_signal_levels(struct intel_dp *intel_dp);
1389 u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder);
1390 int intel_ddi_toggle_hdcp_signalling(struct intel_encoder *intel_encoder,
1391                                      bool enable);
1392
1393 unsigned int intel_fb_align_height(const struct drm_framebuffer *fb,
1394                                    int plane, unsigned int height);
1395
1396 /* intel_audio.c */
1397 void intel_init_audio_hooks(struct drm_i915_private *dev_priv);
1398 void intel_audio_codec_enable(struct intel_encoder *encoder,
1399                               const struct intel_crtc_state *crtc_state,
1400                               const struct drm_connector_state *conn_state);
1401 void intel_audio_codec_disable(struct intel_encoder *encoder,
1402                                const struct intel_crtc_state *old_crtc_state,
1403                                const struct drm_connector_state *old_conn_state);
1404 void i915_audio_component_init(struct drm_i915_private *dev_priv);
1405 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
1406 void intel_audio_init(struct drm_i915_private *dev_priv);
1407 void intel_audio_deinit(struct drm_i915_private *dev_priv);
1408
1409 /* intel_cdclk.c */
1410 int intel_crtc_compute_min_cdclk(const struct intel_crtc_state *crtc_state);
1411 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1412 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1413 void cnl_init_cdclk(struct drm_i915_private *dev_priv);
1414 void cnl_uninit_cdclk(struct drm_i915_private *dev_priv);
1415 void bxt_init_cdclk(struct drm_i915_private *dev_priv);
1416 void bxt_uninit_cdclk(struct drm_i915_private *dev_priv);
1417 void icl_init_cdclk(struct drm_i915_private *dev_priv);
1418 void icl_uninit_cdclk(struct drm_i915_private *dev_priv);
1419 void intel_init_cdclk_hooks(struct drm_i915_private *dev_priv);
1420 void intel_update_max_cdclk(struct drm_i915_private *dev_priv);
1421 void intel_update_cdclk(struct drm_i915_private *dev_priv);
1422 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1423 bool intel_cdclk_needs_modeset(const struct intel_cdclk_state *a,
1424                                const struct intel_cdclk_state *b);
1425 bool intel_cdclk_changed(const struct intel_cdclk_state *a,
1426                          const struct intel_cdclk_state *b);
1427 void intel_set_cdclk(struct drm_i915_private *dev_priv,
1428                      const struct intel_cdclk_state *cdclk_state);
1429 void intel_dump_cdclk_state(const struct intel_cdclk_state *cdclk_state,
1430                             const char *context);
1431
1432 /* intel_display.c */
1433 void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1434 void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
1435 enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc);
1436 void intel_update_rawclk(struct drm_i915_private *dev_priv);
1437 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
1438 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
1439                       const char *name, u32 reg, int ref_freq);
1440 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
1441                            const char *name, u32 reg);
1442 void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv);
1443 void lpt_disable_iclkip(struct drm_i915_private *dev_priv);
1444 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
1445 unsigned int intel_fb_xy_to_linear(int x, int y,
1446                                    const struct intel_plane_state *state,
1447                                    int plane);
1448 void intel_add_fb_offsets(int *x, int *y,
1449                           const struct intel_plane_state *state, int plane);
1450 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
1451 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
1452 void intel_mark_busy(struct drm_i915_private *dev_priv);
1453 void intel_mark_idle(struct drm_i915_private *dev_priv);
1454 int intel_display_suspend(struct drm_device *dev);
1455 void intel_pps_unlock_regs_wa(struct drm_i915_private *dev_priv);
1456 void intel_encoder_destroy(struct drm_encoder *encoder);
1457 int intel_connector_init(struct intel_connector *);
1458 struct intel_connector *intel_connector_alloc(void);
1459 void intel_connector_free(struct intel_connector *connector);
1460 bool intel_connector_get_hw_state(struct intel_connector *connector);
1461 void intel_connector_attach_encoder(struct intel_connector *connector,
1462                                     struct intel_encoder *encoder);
1463 struct drm_display_mode *
1464 intel_encoder_current_mode(struct intel_encoder *encoder);
1465
1466 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1467 int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
1468                                       struct drm_file *file_priv);
1469 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1470                                              enum pipe pipe);
1471 static inline bool
1472 intel_crtc_has_type(const struct intel_crtc_state *crtc_state,
1473                     enum intel_output_type type)
1474 {
1475         return crtc_state->output_types & (1 << type);
1476 }
1477 static inline bool
1478 intel_crtc_has_dp_encoder(const struct intel_crtc_state *crtc_state)
1479 {
1480         return crtc_state->output_types &
1481                 ((1 << INTEL_OUTPUT_DP) |
1482                  (1 << INTEL_OUTPUT_DP_MST) |
1483                  (1 << INTEL_OUTPUT_EDP));
1484 }
1485 static inline void
1486 intel_wait_for_vblank(struct drm_i915_private *dev_priv, enum pipe pipe)
1487 {
1488         drm_wait_one_vblank(&dev_priv->drm, pipe);
1489 }
1490 static inline void
1491 intel_wait_for_vblank_if_active(struct drm_i915_private *dev_priv, int pipe)
1492 {
1493         const struct intel_crtc *crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
1494
1495         if (crtc->active)
1496                 intel_wait_for_vblank(dev_priv, pipe);
1497 }
1498
1499 u32 intel_crtc_get_vblank_counter(struct intel_crtc *crtc);
1500
1501 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1502 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1503                          struct intel_digital_port *dport,
1504                          unsigned int expected_mask);
1505 int intel_get_load_detect_pipe(struct drm_connector *connector,
1506                                const struct drm_display_mode *mode,
1507                                struct intel_load_detect_pipe *old,
1508                                struct drm_modeset_acquire_ctx *ctx);
1509 void intel_release_load_detect_pipe(struct drm_connector *connector,
1510                                     struct intel_load_detect_pipe *old,
1511                                     struct drm_modeset_acquire_ctx *ctx);
1512 struct i915_vma *
1513 intel_pin_and_fence_fb_obj(struct drm_framebuffer *fb,
1514                            unsigned int rotation,
1515                            bool uses_fence,
1516                            unsigned long *out_flags);
1517 void intel_unpin_fb_vma(struct i915_vma *vma, unsigned long flags);
1518 struct drm_framebuffer *
1519 intel_framebuffer_create(struct drm_i915_gem_object *obj,
1520                          struct drm_mode_fb_cmd2 *mode_cmd);
1521 int intel_prepare_plane_fb(struct drm_plane *plane,
1522                            struct drm_plane_state *new_state);
1523 void intel_cleanup_plane_fb(struct drm_plane *plane,
1524                             struct drm_plane_state *old_state);
1525 int intel_plane_atomic_get_property(struct drm_plane *plane,
1526                                     const struct drm_plane_state *state,
1527                                     struct drm_property *property,
1528                                     uint64_t *val);
1529 int intel_plane_atomic_set_property(struct drm_plane *plane,
1530                                     struct drm_plane_state *state,
1531                                     struct drm_property *property,
1532                                     uint64_t val);
1533 int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_crtc_state,
1534                                     struct drm_crtc_state *crtc_state,
1535                                     const struct intel_plane_state *old_plane_state,
1536                                     struct drm_plane_state *plane_state);
1537
1538 void assert_pch_transcoder_disabled(struct drm_i915_private *dev_priv,
1539                                     enum pipe pipe);
1540
1541 int vlv_force_pll_on(struct drm_i915_private *dev_priv, enum pipe pipe,
1542                      const struct dpll *dpll);
1543 void vlv_force_pll_off(struct drm_i915_private *dev_priv, enum pipe pipe);
1544 int lpt_get_iclkip(struct drm_i915_private *dev_priv);
1545
1546 /* modesetting asserts */
1547 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1548                            enum pipe pipe);
1549 void assert_pll(struct drm_i915_private *dev_priv,
1550                 enum pipe pipe, bool state);
1551 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1552 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1553 void assert_dsi_pll(struct drm_i915_private *dev_priv, bool state);
1554 #define assert_dsi_pll_enabled(d) assert_dsi_pll(d, true)
1555 #define assert_dsi_pll_disabled(d) assert_dsi_pll(d, false)
1556 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1557                        enum pipe pipe, bool state);
1558 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1559 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1560 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1561 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1562 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1563 u32 intel_compute_tile_offset(int *x, int *y,
1564                               const struct intel_plane_state *state, int plane);
1565 void intel_prepare_reset(struct drm_i915_private *dev_priv);
1566 void intel_finish_reset(struct drm_i915_private *dev_priv);
1567 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1568 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1569 void gen9_sanitize_dc_state(struct drm_i915_private *dev_priv);
1570 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1571 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1572 void gen9_enable_dc5(struct drm_i915_private *dev_priv);
1573 unsigned int skl_cdclk_get_vco(unsigned int freq);
1574 void skl_enable_dc6(struct drm_i915_private *dev_priv);
1575 void skl_disable_dc6(struct drm_i915_private *dev_priv);
1576 void intel_dp_get_m_n(struct intel_crtc *crtc,
1577                       struct intel_crtc_state *pipe_config);
1578 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1579 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1580 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1581                         struct dpll *best_clock);
1582 int chv_calc_dpll_params(int refclk, struct dpll *pll_clock);
1583
1584 bool intel_crtc_active(struct intel_crtc *crtc);
1585 bool hsw_crtc_state_ips_capable(const struct intel_crtc_state *crtc_state);
1586 void hsw_enable_ips(const struct intel_crtc_state *crtc_state);
1587 void hsw_disable_ips(const struct intel_crtc_state *crtc_state);
1588 enum intel_display_power_domain intel_port_to_power_domain(enum port port);
1589 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1590                                  struct intel_crtc_state *pipe_config);
1591
1592 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state);
1593 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1594
1595 static inline u32 intel_plane_ggtt_offset(const struct intel_plane_state *state)
1596 {
1597         return i915_ggtt_offset(state->vma);
1598 }
1599
1600 u32 glk_plane_color_ctl(const struct intel_crtc_state *crtc_state,
1601                         const struct intel_plane_state *plane_state);
1602 u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
1603                   const struct intel_plane_state *plane_state);
1604 u32 glk_color_ctl(const struct intel_plane_state *plane_state);
1605 u32 skl_plane_stride(const struct drm_framebuffer *fb, int plane,
1606                      unsigned int rotation);
1607 int skl_check_plane_surface(const struct intel_crtc_state *crtc_state,
1608                             struct intel_plane_state *plane_state);
1609 int i9xx_check_plane_surface(struct intel_plane_state *plane_state);
1610
1611 /* intel_csr.c */
1612 void intel_csr_ucode_init(struct drm_i915_private *);
1613 void intel_csr_load_program(struct drm_i915_private *);
1614 void intel_csr_ucode_fini(struct drm_i915_private *);
1615 void intel_csr_ucode_suspend(struct drm_i915_private *);
1616 void intel_csr_ucode_resume(struct drm_i915_private *);
1617
1618 /* intel_dp.c */
1619 bool intel_dp_init(struct drm_i915_private *dev_priv, i915_reg_t output_reg,
1620                    enum port port);
1621 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1622                              struct intel_connector *intel_connector);
1623 void intel_dp_set_link_params(struct intel_dp *intel_dp,
1624                               int link_rate, uint8_t lane_count,
1625                               bool link_mst);
1626 int intel_dp_get_link_train_fallback_values(struct intel_dp *intel_dp,
1627                                             int link_rate, uint8_t lane_count);
1628 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1629 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1630 int intel_dp_retrain_link(struct intel_encoder *encoder,
1631                           struct drm_modeset_acquire_ctx *ctx);
1632 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1633 void intel_dp_encoder_reset(struct drm_encoder *encoder);
1634 void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder);
1635 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1636 int intel_dp_sink_crc(struct intel_dp *intel_dp,
1637                       struct intel_crtc_state *crtc_state, u8 *crc);
1638 bool intel_dp_compute_config(struct intel_encoder *encoder,
1639                              struct intel_crtc_state *pipe_config,
1640                              struct drm_connector_state *conn_state);
1641 bool intel_dp_is_edp(struct intel_dp *intel_dp);
1642 bool intel_dp_is_port_edp(struct drm_i915_private *dev_priv, enum port port);
1643 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1644                                   bool long_hpd);
1645 void intel_edp_backlight_on(const struct intel_crtc_state *crtc_state,
1646                             const struct drm_connector_state *conn_state);
1647 void intel_edp_backlight_off(const struct drm_connector_state *conn_state);
1648 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1649 void intel_edp_panel_on(struct intel_dp *intel_dp);
1650 void intel_edp_panel_off(struct intel_dp *intel_dp);
1651 void intel_dp_mst_suspend(struct drm_device *dev);
1652 void intel_dp_mst_resume(struct drm_device *dev);
1653 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1654 int intel_dp_max_lane_count(struct intel_dp *intel_dp);
1655 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1656 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1657 void intel_power_sequencer_reset(struct drm_i915_private *dev_priv);
1658 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1659 void intel_plane_destroy(struct drm_plane *plane);
1660 void intel_edp_drrs_enable(struct intel_dp *intel_dp,
1661                            const struct intel_crtc_state *crtc_state);
1662 void intel_edp_drrs_disable(struct intel_dp *intel_dp,
1663                             const struct intel_crtc_state *crtc_state);
1664 void intel_edp_drrs_invalidate(struct drm_i915_private *dev_priv,
1665                                unsigned int frontbuffer_bits);
1666 void intel_edp_drrs_flush(struct drm_i915_private *dev_priv,
1667                           unsigned int frontbuffer_bits);
1668
1669 void
1670 intel_dp_program_link_training_pattern(struct intel_dp *intel_dp,
1671                                        uint8_t dp_train_pat);
1672 void
1673 intel_dp_set_signal_levels(struct intel_dp *intel_dp);
1674 void intel_dp_set_idle_link_train(struct intel_dp *intel_dp);
1675 uint8_t
1676 intel_dp_voltage_max(struct intel_dp *intel_dp);
1677 uint8_t
1678 intel_dp_pre_emphasis_max(struct intel_dp *intel_dp, uint8_t voltage_swing);
1679 void intel_dp_compute_rate(struct intel_dp *intel_dp, int port_clock,
1680                            uint8_t *link_bw, uint8_t *rate_select);
1681 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp);
1682 bool
1683 intel_dp_get_link_status(struct intel_dp *intel_dp, uint8_t link_status[DP_LINK_STATUS_SIZE]);
1684
1685 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
1686 {
1687         return ~((1 << lane_count) - 1) & 0xf;
1688 }
1689
1690 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
1691 int intel_dp_link_required(int pixel_clock, int bpp);
1692 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
1693 bool intel_digital_port_connected(struct intel_encoder *encoder);
1694
1695 /* intel_dp_aux_backlight.c */
1696 int intel_dp_aux_init_backlight_funcs(struct intel_connector *intel_connector);
1697
1698 /* intel_dp_mst.c */
1699 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1700 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1701 /* intel_dsi.c */
1702 void intel_dsi_init(struct drm_i915_private *dev_priv);
1703
1704 /* intel_dsi_dcs_backlight.c */
1705 int intel_dsi_dcs_init_backlight_funcs(struct intel_connector *intel_connector);
1706
1707 /* intel_dvo.c */
1708 void intel_dvo_init(struct drm_i915_private *dev_priv);
1709 /* intel_hotplug.c */
1710 void intel_hpd_poll_init(struct drm_i915_private *dev_priv);
1711 bool intel_encoder_hotplug(struct intel_encoder *encoder,
1712                            struct intel_connector *connector);
1713
1714 /* legacy fbdev emulation in intel_fbdev.c */
1715 #ifdef CONFIG_DRM_FBDEV_EMULATION
1716 extern int intel_fbdev_init(struct drm_device *dev);
1717 extern void intel_fbdev_initial_config_async(struct drm_device *dev);
1718 extern void intel_fbdev_unregister(struct drm_i915_private *dev_priv);
1719 extern void intel_fbdev_fini(struct drm_i915_private *dev_priv);
1720 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1721 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1722 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1723 #else
1724 static inline int intel_fbdev_init(struct drm_device *dev)
1725 {
1726         return 0;
1727 }
1728
1729 static inline void intel_fbdev_initial_config_async(struct drm_device *dev)
1730 {
1731 }
1732
1733 static inline void intel_fbdev_unregister(struct drm_i915_private *dev_priv)
1734 {
1735 }
1736
1737 static inline void intel_fbdev_fini(struct drm_i915_private *dev_priv)
1738 {
1739 }
1740
1741 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1742 {
1743 }
1744
1745 static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
1746 {
1747 }
1748
1749 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1750 {
1751 }
1752 #endif
1753
1754 /* intel_fbc.c */
1755 void intel_fbc_choose_crtc(struct drm_i915_private *dev_priv,
1756                            struct intel_atomic_state *state);
1757 bool intel_fbc_is_active(struct drm_i915_private *dev_priv);
1758 void intel_fbc_pre_update(struct intel_crtc *crtc,
1759                           struct intel_crtc_state *crtc_state,
1760                           struct intel_plane_state *plane_state);
1761 void intel_fbc_post_update(struct intel_crtc *crtc);
1762 void intel_fbc_init(struct drm_i915_private *dev_priv);
1763 void intel_fbc_init_pipe_state(struct drm_i915_private *dev_priv);
1764 void intel_fbc_enable(struct intel_crtc *crtc,
1765                       struct intel_crtc_state *crtc_state,
1766                       struct intel_plane_state *plane_state);
1767 void intel_fbc_disable(struct intel_crtc *crtc);
1768 void intel_fbc_global_disable(struct drm_i915_private *dev_priv);
1769 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1770                           unsigned int frontbuffer_bits,
1771                           enum fb_op_origin origin);
1772 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1773                      unsigned int frontbuffer_bits, enum fb_op_origin origin);
1774 void intel_fbc_cleanup_cfb(struct drm_i915_private *dev_priv);
1775 void intel_fbc_handle_fifo_underrun_irq(struct drm_i915_private *dev_priv);
1776
1777 /* intel_hdmi.c */
1778 void intel_hdmi_init(struct drm_i915_private *dev_priv, i915_reg_t hdmi_reg,
1779                      enum port port);
1780 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1781                                struct intel_connector *intel_connector);
1782 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1783 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1784                                struct intel_crtc_state *pipe_config,
1785                                struct drm_connector_state *conn_state);
1786 void intel_hdmi_handle_sink_scrambling(struct intel_encoder *intel_encoder,
1787                                        struct drm_connector *connector,
1788                                        bool high_tmds_clock_ratio,
1789                                        bool scrambling);
1790 void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable);
1791 void intel_infoframe_init(struct intel_digital_port *intel_dig_port);
1792
1793
1794 /* intel_lvds.c */
1795 void intel_lvds_init(struct drm_i915_private *dev_priv);
1796 struct intel_encoder *intel_get_lvds_encoder(struct drm_device *dev);
1797 bool intel_is_dual_link_lvds(struct drm_device *dev);
1798
1799
1800 /* intel_modes.c */
1801 int intel_connector_update_modes(struct drm_connector *connector,
1802                                  struct edid *edid);
1803 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1804 void intel_attach_force_audio_property(struct drm_connector *connector);
1805 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1806 void intel_attach_aspect_ratio_property(struct drm_connector *connector);
1807
1808
1809 /* intel_overlay.c */
1810 void intel_setup_overlay(struct drm_i915_private *dev_priv);
1811 void intel_cleanup_overlay(struct drm_i915_private *dev_priv);
1812 int intel_overlay_switch_off(struct intel_overlay *overlay);
1813 int intel_overlay_put_image_ioctl(struct drm_device *dev, void *data,
1814                                   struct drm_file *file_priv);
1815 int intel_overlay_attrs_ioctl(struct drm_device *dev, void *data,
1816                               struct drm_file *file_priv);
1817 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1818
1819
1820 /* intel_panel.c */
1821 int intel_panel_init(struct intel_panel *panel,
1822                      struct drm_display_mode *fixed_mode,
1823                      struct drm_display_mode *alt_fixed_mode,
1824                      struct drm_display_mode *downclock_mode);
1825 void intel_panel_fini(struct intel_panel *panel);
1826 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1827                             struct drm_display_mode *adjusted_mode);
1828 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1829                              struct intel_crtc_state *pipe_config,
1830                              int fitting_mode);
1831 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1832                               struct intel_crtc_state *pipe_config,
1833                               int fitting_mode);
1834 void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
1835                                     u32 level, u32 max);
1836 int intel_panel_setup_backlight(struct drm_connector *connector,
1837                                 enum pipe pipe);
1838 void intel_panel_enable_backlight(const struct intel_crtc_state *crtc_state,
1839                                   const struct drm_connector_state *conn_state);
1840 void intel_panel_disable_backlight(const struct drm_connector_state *old_conn_state);
1841 void intel_panel_destroy_backlight(struct drm_connector *connector);
1842 enum drm_connector_status intel_panel_detect(struct drm_i915_private *dev_priv);
1843 extern struct drm_display_mode *intel_find_panel_downclock(
1844                                 struct drm_i915_private *dev_priv,
1845                                 struct drm_display_mode *fixed_mode,
1846                                 struct drm_connector *connector);
1847
1848 #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE)
1849 int intel_backlight_device_register(struct intel_connector *connector);
1850 void intel_backlight_device_unregister(struct intel_connector *connector);
1851 #else /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1852 static inline int intel_backlight_device_register(struct intel_connector *connector)
1853 {
1854         return 0;
1855 }
1856 static inline void intel_backlight_device_unregister(struct intel_connector *connector)
1857 {
1858 }
1859 #endif /* CONFIG_BACKLIGHT_CLASS_DEVICE */
1860
1861 /* intel_hdcp.c */
1862 void intel_hdcp_atomic_check(struct drm_connector *connector,
1863                              struct drm_connector_state *old_state,
1864                              struct drm_connector_state *new_state);
1865 int intel_hdcp_init(struct intel_connector *connector,
1866                     const struct intel_hdcp_shim *hdcp_shim);
1867 int intel_hdcp_enable(struct intel_connector *connector);
1868 int intel_hdcp_disable(struct intel_connector *connector);
1869 int intel_hdcp_check_link(struct intel_connector *connector);
1870 bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port);
1871
1872 /* intel_psr.c */
1873 #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
1874 void intel_psr_init_dpcd(struct intel_dp *intel_dp);
1875 void intel_psr_enable(struct intel_dp *intel_dp,
1876                       const struct intel_crtc_state *crtc_state);
1877 void intel_psr_disable(struct intel_dp *intel_dp,
1878                       const struct intel_crtc_state *old_crtc_state);
1879 void intel_psr_invalidate(struct drm_i915_private *dev_priv,
1880                           unsigned frontbuffer_bits);
1881 void intel_psr_flush(struct drm_i915_private *dev_priv,
1882                      unsigned frontbuffer_bits,
1883                      enum fb_op_origin origin);
1884 void intel_psr_init(struct drm_i915_private *dev_priv);
1885 void intel_psr_single_frame_update(struct drm_i915_private *dev_priv,
1886                                    unsigned frontbuffer_bits);
1887 void intel_psr_compute_config(struct intel_dp *intel_dp,
1888                               struct intel_crtc_state *crtc_state);
1889
1890 /* intel_runtime_pm.c */
1891 int intel_power_domains_init(struct drm_i915_private *);
1892 void intel_power_domains_fini(struct drm_i915_private *);
1893 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv, bool resume);
1894 void intel_power_domains_suspend(struct drm_i915_private *dev_priv);
1895 void intel_power_domains_verify_state(struct drm_i915_private *dev_priv);
1896 void bxt_display_core_init(struct drm_i915_private *dev_priv, bool resume);
1897 void bxt_display_core_uninit(struct drm_i915_private *dev_priv);
1898 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1899 const char *
1900 intel_display_power_domain_str(enum intel_display_power_domain domain);
1901
1902 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1903                                     enum intel_display_power_domain domain);
1904 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1905                                       enum intel_display_power_domain domain);
1906 void intel_display_power_get(struct drm_i915_private *dev_priv,
1907                              enum intel_display_power_domain domain);
1908 bool intel_display_power_get_if_enabled(struct drm_i915_private *dev_priv,
1909                                         enum intel_display_power_domain domain);
1910 void intel_display_power_put(struct drm_i915_private *dev_priv,
1911                              enum intel_display_power_domain domain);
1912
1913 static inline void
1914 assert_rpm_device_not_suspended(struct drm_i915_private *dev_priv)
1915 {
1916         WARN_ONCE(dev_priv->runtime_pm.suspended,
1917                   "Device suspended during HW access\n");
1918 }
1919
1920 static inline void
1921 assert_rpm_wakelock_held(struct drm_i915_private *dev_priv)
1922 {
1923         assert_rpm_device_not_suspended(dev_priv);
1924         WARN_ONCE(!atomic_read(&dev_priv->runtime_pm.wakeref_count),
1925                   "RPM wakelock ref not held during HW access");
1926 }
1927
1928 /**
1929  * disable_rpm_wakeref_asserts - disable the RPM assert checks
1930  * @dev_priv: i915 device instance
1931  *
1932  * This function disable asserts that check if we hold an RPM wakelock
1933  * reference, while keeping the device-not-suspended checks still enabled.
1934  * It's meant to be used only in special circumstances where our rule about
1935  * the wakelock refcount wrt. the device power state doesn't hold. According
1936  * to this rule at any point where we access the HW or want to keep the HW in
1937  * an active state we must hold an RPM wakelock reference acquired via one of
1938  * the intel_runtime_pm_get() helpers. Currently there are a few special spots
1939  * where this rule doesn't hold: the IRQ and suspend/resume handlers, the
1940  * forcewake release timer, and the GPU RPS and hangcheck works. All other
1941  * users should avoid using this function.
1942  *
1943  * Any calls to this function must have a symmetric call to
1944  * enable_rpm_wakeref_asserts().
1945  */
1946 static inline void
1947 disable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1948 {
1949         atomic_inc(&dev_priv->runtime_pm.wakeref_count);
1950 }
1951
1952 /**
1953  * enable_rpm_wakeref_asserts - re-enable the RPM assert checks
1954  * @dev_priv: i915 device instance
1955  *
1956  * This function re-enables the RPM assert checks after disabling them with
1957  * disable_rpm_wakeref_asserts. It's meant to be used only in special
1958  * circumstances otherwise its use should be avoided.
1959  *
1960  * Any calls to this function must have a symmetric call to
1961  * disable_rpm_wakeref_asserts().
1962  */
1963 static inline void
1964 enable_rpm_wakeref_asserts(struct drm_i915_private *dev_priv)
1965 {
1966         atomic_dec(&dev_priv->runtime_pm.wakeref_count);
1967 }
1968
1969 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1970 bool intel_runtime_pm_get_if_in_use(struct drm_i915_private *dev_priv);
1971 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1972 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1973
1974 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1975
1976 void chv_phy_powergate_lanes(struct intel_encoder *encoder,
1977                              bool override, unsigned int mask);
1978 bool chv_phy_powergate_ch(struct drm_i915_private *dev_priv, enum dpio_phy phy,
1979                           enum dpio_channel ch, bool override);
1980
1981
1982 /* intel_pm.c */
1983 void intel_init_clock_gating(struct drm_i915_private *dev_priv);
1984 void intel_suspend_hw(struct drm_i915_private *dev_priv);
1985 int ilk_wm_max_level(const struct drm_i915_private *dev_priv);
1986 void intel_update_watermarks(struct intel_crtc *crtc);
1987 void intel_init_pm(struct drm_i915_private *dev_priv);
1988 void intel_init_clock_gating_hooks(struct drm_i915_private *dev_priv);
1989 void intel_pm_setup(struct drm_i915_private *dev_priv);
1990 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1991 void intel_gpu_ips_teardown(void);
1992 void intel_init_gt_powersave(struct drm_i915_private *dev_priv);
1993 void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
1994 void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
1995 void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
1996 void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
1997 void intel_suspend_gt_powersave(struct drm_i915_private *dev_priv);
1998 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1999 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
2000 void gen6_rps_idle(struct drm_i915_private *dev_priv);
2001 void gen6_rps_boost(struct i915_request *rq, struct intel_rps_client *rps);
2002 void g4x_wm_get_hw_state(struct drm_device *dev);
2003 void vlv_wm_get_hw_state(struct drm_device *dev);
2004 void ilk_wm_get_hw_state(struct drm_device *dev);
2005 void skl_wm_get_hw_state(struct drm_device *dev);
2006 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
2007                           struct skl_ddb_allocation *ddb /* out */);
2008 void skl_pipe_wm_get_hw_state(struct drm_crtc *crtc,
2009                               struct skl_pipe_wm *out);
2010 void g4x_wm_sanitize(struct drm_i915_private *dev_priv);
2011 void vlv_wm_sanitize(struct drm_i915_private *dev_priv);
2012 bool intel_can_enable_sagv(struct drm_atomic_state *state);
2013 int intel_enable_sagv(struct drm_i915_private *dev_priv);
2014 int intel_disable_sagv(struct drm_i915_private *dev_priv);
2015 bool skl_wm_level_equals(const struct skl_wm_level *l1,
2016                          const struct skl_wm_level *l2);
2017 bool skl_ddb_allocation_overlaps(struct drm_i915_private *dev_priv,
2018                                  const struct skl_ddb_entry **entries,
2019                                  const struct skl_ddb_entry *ddb,
2020                                  int ignore);
2021 bool ilk_disable_lp_wm(struct drm_device *dev);
2022 int skl_check_pipe_max_pixel_rate(struct intel_crtc *intel_crtc,
2023                                   struct intel_crtc_state *cstate);
2024 void intel_init_ipc(struct drm_i915_private *dev_priv);
2025 void intel_enable_ipc(struct drm_i915_private *dev_priv);
2026
2027 /* intel_sdvo.c */
2028 bool intel_sdvo_init(struct drm_i915_private *dev_priv,
2029                      i915_reg_t reg, enum port port);
2030
2031
2032 /* intel_sprite.c */
2033 bool intel_format_is_yuv(u32 format);
2034 int intel_usecs_to_scanlines(const struct drm_display_mode *adjusted_mode,
2035                              int usecs);
2036 struct intel_plane *intel_sprite_plane_create(struct drm_i915_private *dev_priv,
2037                                               enum pipe pipe, int plane);
2038 int intel_sprite_set_colorkey_ioctl(struct drm_device *dev, void *data,
2039                                     struct drm_file *file_priv);
2040 void intel_pipe_update_start(const struct intel_crtc_state *new_crtc_state);
2041 void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state);
2042 void skl_update_plane(struct intel_plane *plane,
2043                       const struct intel_crtc_state *crtc_state,
2044                       const struct intel_plane_state *plane_state);
2045 void skl_disable_plane(struct intel_plane *plane, struct intel_crtc *crtc);
2046 bool skl_plane_get_hw_state(struct intel_plane *plane);
2047 bool skl_plane_has_ccs(struct drm_i915_private *dev_priv,
2048                        enum pipe pipe, enum plane_id plane_id);
2049
2050 /* intel_tv.c */
2051 void intel_tv_init(struct drm_i915_private *dev_priv);
2052
2053 /* intel_atomic.c */
2054 int intel_digital_connector_atomic_get_property(struct drm_connector *connector,
2055                                                 const struct drm_connector_state *state,
2056                                                 struct drm_property *property,
2057                                                 uint64_t *val);
2058 int intel_digital_connector_atomic_set_property(struct drm_connector *connector,
2059                                                 struct drm_connector_state *state,
2060                                                 struct drm_property *property,
2061                                                 uint64_t val);
2062 int intel_digital_connector_atomic_check(struct drm_connector *conn,
2063                                          struct drm_connector_state *new_state);
2064 struct drm_connector_state *
2065 intel_digital_connector_duplicate_state(struct drm_connector *connector);
2066
2067 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
2068 void intel_crtc_destroy_state(struct drm_crtc *crtc,
2069                                struct drm_crtc_state *state);
2070 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
2071 void intel_atomic_state_clear(struct drm_atomic_state *);
2072
2073 static inline struct intel_crtc_state *
2074 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
2075                             struct intel_crtc *crtc)
2076 {
2077         struct drm_crtc_state *crtc_state;
2078         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
2079         if (IS_ERR(crtc_state))
2080                 return ERR_CAST(crtc_state);
2081
2082         return to_intel_crtc_state(crtc_state);
2083 }
2084
2085 static inline struct intel_crtc_state *
2086 intel_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
2087                                      struct intel_crtc *crtc)
2088 {
2089         struct drm_crtc_state *crtc_state;
2090
2091         crtc_state = drm_atomic_get_existing_crtc_state(state, &crtc->base);
2092
2093         if (crtc_state)
2094                 return to_intel_crtc_state(crtc_state);
2095         else
2096                 return NULL;
2097 }
2098
2099 static inline struct intel_plane_state *
2100 intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
2101                                       struct intel_plane *plane)
2102 {
2103         struct drm_plane_state *plane_state;
2104
2105         plane_state = drm_atomic_get_existing_plane_state(state, &plane->base);
2106
2107         return to_intel_plane_state(plane_state);
2108 }
2109
2110 int intel_atomic_setup_scalers(struct drm_i915_private *dev_priv,
2111                                struct intel_crtc *intel_crtc,
2112                                struct intel_crtc_state *crtc_state);
2113
2114 /* intel_atomic_plane.c */
2115 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
2116 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
2117 void intel_plane_destroy_state(struct drm_plane *plane,
2118                                struct drm_plane_state *state);
2119 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
2120 int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
2121                                         struct intel_crtc_state *crtc_state,
2122                                         const struct intel_plane_state *old_plane_state,
2123                                         struct intel_plane_state *intel_state);
2124
2125 /* intel_color.c */
2126 void intel_color_init(struct drm_crtc *crtc);
2127 int intel_color_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
2128 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
2129 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
2130
2131 /* intel_lspcon.c */
2132 bool lspcon_init(struct intel_digital_port *intel_dig_port);
2133 void lspcon_resume(struct intel_lspcon *lspcon);
2134 void lspcon_wait_pcon_mode(struct intel_lspcon *lspcon);
2135
2136 /* intel_pipe_crc.c */
2137 int intel_pipe_crc_create(struct drm_minor *minor);
2138 #ifdef CONFIG_DEBUG_FS
2139 int intel_crtc_set_crc_source(struct drm_crtc *crtc, const char *source_name,
2140                               size_t *values_cnt);
2141 #else
2142 #define intel_crtc_set_crc_source NULL
2143 #endif
2144 extern const struct file_operations i915_display_crc_ctl_fops;
2145 #endif /* __INTEL_DRV_H__ */