drm/i915: Split plane updates of crtc->atomic into a helper, v2.
[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / i915 / intel_drv.h
1 /*
2  * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
3  * Copyright (c) 2007-2008 Intel Corporation
4  *   Jesse Barnes <jesse.barnes@intel.com>
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the "Software"),
8  * to deal in the Software without restriction, including without limitation
9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10  * and/or sell copies of the Software, and to permit persons to whom the
11  * Software is furnished to do so, subject to the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the next
14  * paragraph) shall be included in all copies or substantial portions of the
15  * Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
23  * IN THE SOFTWARE.
24  */
25 #ifndef __INTEL_DRV_H__
26 #define __INTEL_DRV_H__
27
28 #include <linux/async.h>
29 #include <linux/i2c.h>
30 #include <linux/hdmi.h>
31 #include <drm/i915_drm.h>
32 #include "i915_drv.h"
33 #include <drm/drm_crtc.h>
34 #include <drm/drm_crtc_helper.h>
35 #include <drm/drm_fb_helper.h>
36 #include <drm/drm_dp_mst_helper.h>
37 #include <drm/drm_rect.h>
38 #include <drm/drm_atomic.h>
39
40 /**
41  * _wait_for - magic (register) wait macro
42  *
43  * Does the right thing for modeset paths when run under kdgb or similar atomic
44  * contexts. Note that it's important that we check the condition again after
45  * having timed out, since the timeout could be due to preemption or similar and
46  * we've never had a chance to check the condition before the timeout.
47  */
48 #define _wait_for(COND, MS, W) ({ \
49         unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;   \
50         int ret__ = 0;                                                  \
51         while (!(COND)) {                                               \
52                 if (time_after(jiffies, timeout__)) {                   \
53                         if (!(COND))                                    \
54                                 ret__ = -ETIMEDOUT;                     \
55                         break;                                          \
56                 }                                                       \
57                 if ((W) && drm_can_sleep()) {                           \
58                         usleep_range((W)*1000, (W)*2000);               \
59                 } else {                                                \
60                         cpu_relax();                                    \
61                 }                                                       \
62         }                                                               \
63         ret__;                                                          \
64 })
65
66 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
67 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
68 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
69                                                DIV_ROUND_UP((US), 1000), 0)
70
71 #define KHz(x) (1000 * (x))
72 #define MHz(x) KHz(1000 * (x))
73
74 /*
75  * Display related stuff
76  */
77
78 /* store information about an Ixxx DVO */
79 /* The i830->i865 use multiple DVOs with multiple i2cs */
80 /* the i915, i945 have a single sDVO i2c bus - which is different */
81 #define MAX_OUTPUTS 6
82 /* maximum connectors per crtcs in the mode set */
83
84 /* Maximum cursor sizes */
85 #define GEN2_CURSOR_WIDTH 64
86 #define GEN2_CURSOR_HEIGHT 64
87 #define MAX_CURSOR_WIDTH 256
88 #define MAX_CURSOR_HEIGHT 256
89
90 #define INTEL_I2C_BUS_DVO 1
91 #define INTEL_I2C_BUS_SDVO 2
92
93 /* these are outputs from the chip - integrated only
94    external chips are via DVO or SDVO output */
95 enum intel_output_type {
96         INTEL_OUTPUT_UNUSED = 0,
97         INTEL_OUTPUT_ANALOG = 1,
98         INTEL_OUTPUT_DVO = 2,
99         INTEL_OUTPUT_SDVO = 3,
100         INTEL_OUTPUT_LVDS = 4,
101         INTEL_OUTPUT_TVOUT = 5,
102         INTEL_OUTPUT_HDMI = 6,
103         INTEL_OUTPUT_DISPLAYPORT = 7,
104         INTEL_OUTPUT_EDP = 8,
105         INTEL_OUTPUT_DSI = 9,
106         INTEL_OUTPUT_UNKNOWN = 10,
107         INTEL_OUTPUT_DP_MST = 11,
108 };
109
110 #define INTEL_DVO_CHIP_NONE 0
111 #define INTEL_DVO_CHIP_LVDS 1
112 #define INTEL_DVO_CHIP_TMDS 2
113 #define INTEL_DVO_CHIP_TVOUT 4
114
115 #define INTEL_DSI_VIDEO_MODE    0
116 #define INTEL_DSI_COMMAND_MODE  1
117
118 struct intel_framebuffer {
119         struct drm_framebuffer base;
120         struct drm_i915_gem_object *obj;
121 };
122
123 struct intel_fbdev {
124         struct drm_fb_helper helper;
125         struct intel_framebuffer *fb;
126         struct list_head fbdev_list;
127         struct drm_display_mode *our_mode;
128         int preferred_bpp;
129 };
130
131 struct intel_encoder {
132         struct drm_encoder base;
133         /*
134          * The new crtc this encoder will be driven from. Only differs from
135          * base->crtc while a modeset is in progress.
136          */
137         struct intel_crtc *new_crtc;
138
139         enum intel_output_type type;
140         unsigned int cloneable;
141         bool connectors_active;
142         void (*hot_plug)(struct intel_encoder *);
143         bool (*compute_config)(struct intel_encoder *,
144                                struct intel_crtc_state *);
145         void (*pre_pll_enable)(struct intel_encoder *);
146         void (*pre_enable)(struct intel_encoder *);
147         void (*enable)(struct intel_encoder *);
148         void (*mode_set)(struct intel_encoder *intel_encoder);
149         void (*disable)(struct intel_encoder *);
150         void (*post_disable)(struct intel_encoder *);
151         /* Read out the current hw state of this connector, returning true if
152          * the encoder is active. If the encoder is enabled it also set the pipe
153          * it is connected to in the pipe parameter. */
154         bool (*get_hw_state)(struct intel_encoder *, enum pipe *pipe);
155         /* Reconstructs the equivalent mode flags for the current hardware
156          * state. This must be called _after_ display->get_pipe_config has
157          * pre-filled the pipe config. Note that intel_encoder->base.crtc must
158          * be set correctly before calling this function. */
159         void (*get_config)(struct intel_encoder *,
160                            struct intel_crtc_state *pipe_config);
161         /*
162          * Called during system suspend after all pending requests for the
163          * encoder are flushed (for example for DP AUX transactions) and
164          * device interrupts are disabled.
165          */
166         void (*suspend)(struct intel_encoder *);
167         int crtc_mask;
168         enum hpd_pin hpd_pin;
169 };
170
171 struct intel_panel {
172         struct drm_display_mode *fixed_mode;
173         struct drm_display_mode *downclock_mode;
174         int fitting_mode;
175
176         /* backlight */
177         struct {
178                 bool present;
179                 u32 level;
180                 u32 min;
181                 u32 max;
182                 bool enabled;
183                 bool combination_mode;  /* gen 2/4 only */
184                 bool active_low_pwm;
185                 struct backlight_device *device;
186         } backlight;
187
188         void (*backlight_power)(struct intel_connector *, bool enable);
189 };
190
191 struct intel_connector {
192         struct drm_connector base;
193         /*
194          * The fixed encoder this connector is connected to.
195          */
196         struct intel_encoder *encoder;
197
198         /*
199          * The new encoder this connector will be driven. Only differs from
200          * encoder while a modeset is in progress.
201          */
202         struct intel_encoder *new_encoder;
203
204         /* Reads out the current hw, returning true if the connector is enabled
205          * and active (i.e. dpms ON state). */
206         bool (*get_hw_state)(struct intel_connector *);
207
208         /*
209          * Removes all interfaces through which the connector is accessible
210          * - like sysfs, debugfs entries -, so that no new operations can be
211          * started on the connector. Also makes sure all currently pending
212          * operations finish before returing.
213          */
214         void (*unregister)(struct intel_connector *);
215
216         /* Panel info for eDP and LVDS */
217         struct intel_panel panel;
218
219         /* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
220         struct edid *edid;
221         struct edid *detect_edid;
222
223         /* since POLL and HPD connectors may use the same HPD line keep the native
224            state of connector->polled in case hotplug storm detection changes it */
225         u8 polled;
226
227         void *port; /* store this opaque as its illegal to dereference it */
228
229         struct intel_dp *mst_port;
230 };
231
232 typedef struct dpll {
233         /* given values */
234         int n;
235         int m1, m2;
236         int p1, p2;
237         /* derived values */
238         int     dot;
239         int     vco;
240         int     m;
241         int     p;
242 } intel_clock_t;
243
244 struct intel_atomic_state {
245         struct drm_atomic_state base;
246
247         bool dpll_set;
248         struct intel_shared_dpll_config shared_dpll[I915_NUM_PLLS];
249 };
250
251 struct intel_plane_state {
252         struct drm_plane_state base;
253         struct drm_rect src;
254         struct drm_rect dst;
255         struct drm_rect clip;
256         bool visible;
257
258         /*
259          * scaler_id
260          *    = -1 : not using a scaler
261          *    >=  0 : using a scalers
262          *
263          * plane requiring a scaler:
264          *   - During check_plane, its bit is set in
265          *     crtc_state->scaler_state.scaler_users by calling helper function
266          *     update_scaler_plane.
267          *   - scaler_id indicates the scaler it got assigned.
268          *
269          * plane doesn't require a scaler:
270          *   - this can happen when scaling is no more required or plane simply
271          *     got disabled.
272          *   - During check_plane, corresponding bit is reset in
273          *     crtc_state->scaler_state.scaler_users by calling helper function
274          *     update_scaler_plane.
275          */
276         int scaler_id;
277 };
278
279 struct intel_initial_plane_config {
280         struct intel_framebuffer *fb;
281         unsigned int tiling;
282         int size;
283         u32 base;
284 };
285
286 #define SKL_MIN_SRC_W 8
287 #define SKL_MAX_SRC_W 4096
288 #define SKL_MIN_SRC_H 8
289 #define SKL_MAX_SRC_H 4096
290 #define SKL_MIN_DST_W 8
291 #define SKL_MAX_DST_W 4096
292 #define SKL_MIN_DST_H 8
293 #define SKL_MAX_DST_H 4096
294
295 struct intel_scaler {
296         int in_use;
297         uint32_t mode;
298 };
299
300 struct intel_crtc_scaler_state {
301 #define SKL_NUM_SCALERS 2
302         struct intel_scaler scalers[SKL_NUM_SCALERS];
303
304         /*
305          * scaler_users: keeps track of users requesting scalers on this crtc.
306          *
307          *     If a bit is set, a user is using a scaler.
308          *     Here user can be a plane or crtc as defined below:
309          *       bits 0-30 - plane (bit position is index from drm_plane_index)
310          *       bit 31    - crtc
311          *
312          * Instead of creating a new index to cover planes and crtc, using
313          * existing drm_plane_index for planes which is well less than 31
314          * planes and bit 31 for crtc. This should be fine to cover all
315          * our platforms.
316          *
317          * intel_atomic_setup_scalers will setup available scalers to users
318          * requesting scalers. It will gracefully fail if request exceeds
319          * avilability.
320          */
321 #define SKL_CRTC_INDEX 31
322         unsigned scaler_users;
323
324         /* scaler used by crtc for panel fitting purpose */
325         int scaler_id;
326 };
327
328 struct intel_crtc_state {
329         struct drm_crtc_state base;
330
331         /**
332          * quirks - bitfield with hw state readout quirks
333          *
334          * For various reasons the hw state readout code might not be able to
335          * completely faithfully read out the current state. These cases are
336          * tracked with quirk flags so that fastboot and state checker can act
337          * accordingly.
338          */
339 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS       (1<<0) /* unreliable sync mode.flags */
340 #define PIPE_CONFIG_QUIRK_INHERITED_MODE        (1<<1) /* mode inherited from firmware */
341         unsigned long quirks;
342
343         /* Pipe source size (ie. panel fitter input size)
344          * All planes will be positioned inside this space,
345          * and get clipped at the edges. */
346         int pipe_src_w, pipe_src_h;
347
348         /* Whether to set up the PCH/FDI. Note that we never allow sharing
349          * between pch encoders and cpu encoders. */
350         bool has_pch_encoder;
351
352         /* Are we sending infoframes on the attached port */
353         bool has_infoframe;
354
355         /* CPU Transcoder for the pipe. Currently this can only differ from the
356          * pipe on Haswell (where we have a special eDP transcoder). */
357         enum transcoder cpu_transcoder;
358
359         /*
360          * Use reduced/limited/broadcast rbg range, compressing from the full
361          * range fed into the crtcs.
362          */
363         bool limited_color_range;
364
365         /* DP has a bunch of special case unfortunately, so mark the pipe
366          * accordingly. */
367         bool has_dp_encoder;
368
369         /* Whether we should send NULL infoframes. Required for audio. */
370         bool has_hdmi_sink;
371
372         /* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
373          * has_dp_encoder is set. */
374         bool has_audio;
375
376         /*
377          * Enable dithering, used when the selected pipe bpp doesn't match the
378          * plane bpp.
379          */
380         bool dither;
381
382         /* Controls for the clock computation, to override various stages. */
383         bool clock_set;
384
385         /* SDVO TV has a bunch of special case. To make multifunction encoders
386          * work correctly, we need to track this at runtime.*/
387         bool sdvo_tv_clock;
388
389         /*
390          * crtc bandwidth limit, don't increase pipe bpp or clock if not really
391          * required. This is set in the 2nd loop of calling encoder's
392          * ->compute_config if the first pick doesn't work out.
393          */
394         bool bw_constrained;
395
396         /* Settings for the intel dpll used on pretty much everything but
397          * haswell. */
398         struct dpll dpll;
399
400         /* Selected dpll when shared or DPLL_ID_PRIVATE. */
401         enum intel_dpll_id shared_dpll;
402
403         /*
404          * - PORT_CLK_SEL for DDI ports on HSW/BDW.
405          * - enum skl_dpll on SKL
406          */
407         uint32_t ddi_pll_sel;
408
409         /* Actual register state of the dpll, for shared dpll cross-checking. */
410         struct intel_dpll_hw_state dpll_hw_state;
411
412         int pipe_bpp;
413         struct intel_link_m_n dp_m_n;
414
415         /* m2_n2 for eDP downclock */
416         struct intel_link_m_n dp_m2_n2;
417         bool has_drrs;
418
419         /*
420          * Frequence the dpll for the port should run at. Differs from the
421          * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
422          * already multiplied by pixel_multiplier.
423          */
424         int port_clock;
425
426         /* Used by SDVO (and if we ever fix it, HDMI). */
427         unsigned pixel_multiplier;
428
429         /* Panel fitter controls for gen2-gen4 + VLV */
430         struct {
431                 u32 control;
432                 u32 pgm_ratios;
433                 u32 lvds_border_bits;
434         } gmch_pfit;
435
436         /* Panel fitter placement and size for Ironlake+ */
437         struct {
438                 u32 pos;
439                 u32 size;
440                 bool enabled;
441                 bool force_thru;
442         } pch_pfit;
443
444         /* FDI configuration, only valid if has_pch_encoder is set. */
445         int fdi_lanes;
446         struct intel_link_m_n fdi_m_n;
447
448         bool ips_enabled;
449
450         bool double_wide;
451
452         bool dp_encoder_is_mst;
453         int pbn;
454
455         struct intel_crtc_scaler_state scaler_state;
456
457         /* w/a for waiting 2 vblanks during crtc enable */
458         enum pipe hsw_workaround_pipe;
459 };
460
461 struct intel_pipe_wm {
462         struct intel_wm_level wm[5];
463         uint32_t linetime;
464         bool fbc_wm_enabled;
465         bool pipe_enabled;
466         bool sprites_enabled;
467         bool sprites_scaled;
468 };
469
470 struct intel_mmio_flip {
471         struct work_struct work;
472         struct drm_i915_private *i915;
473         struct drm_i915_gem_request *req;
474         struct intel_crtc *crtc;
475 };
476
477 struct skl_pipe_wm {
478         struct skl_wm_level wm[8];
479         struct skl_wm_level trans_wm;
480         uint32_t linetime;
481 };
482
483 /*
484  * Tracking of operations that need to be performed at the beginning/end of an
485  * atomic commit, outside the atomic section where interrupts are disabled.
486  * These are generally operations that grab mutexes or might otherwise sleep
487  * and thus can't be run with interrupts disabled.
488  */
489 struct intel_crtc_atomic_commit {
490         /* vblank evasion */
491         bool evade;
492         unsigned start_vbl_count;
493
494         /* Sleepable operations to perform before commit */
495         bool wait_for_flips;
496         bool disable_fbc;
497         bool pre_disable_primary;
498         bool update_wm;
499         unsigned disabled_planes;
500
501         /* Sleepable operations to perform after commit */
502         unsigned fb_bits;
503         bool wait_vblank;
504         bool update_fbc;
505         bool post_enable_primary;
506         unsigned update_sprite_watermarks;
507 };
508
509 struct intel_crtc {
510         struct drm_crtc base;
511         enum pipe pipe;
512         enum plane plane;
513         u8 lut_r[256], lut_g[256], lut_b[256];
514         /*
515          * Whether the crtc and the connected output pipeline is active. Implies
516          * that crtc->enabled is set, i.e. the current mode configuration has
517          * some outputs connected to this crtc.
518          */
519         bool active;
520         unsigned long enabled_power_domains;
521         bool lowfreq_avail;
522         struct intel_overlay *overlay;
523         struct intel_unpin_work *unpin_work;
524
525         atomic_t unpin_work_count;
526
527         /* Display surface base address adjustement for pageflips. Note that on
528          * gen4+ this only adjusts up to a tile, offsets within a tile are
529          * handled in the hw itself (with the TILEOFF register). */
530         unsigned long dspaddr_offset;
531
532         struct drm_i915_gem_object *cursor_bo;
533         uint32_t cursor_addr;
534         uint32_t cursor_cntl;
535         uint32_t cursor_size;
536         uint32_t cursor_base;
537
538         struct intel_initial_plane_config plane_config;
539         struct intel_crtc_state *config;
540         bool new_enabled;
541
542         /* reset counter value when the last flip was submitted */
543         unsigned int reset_counter;
544
545         /* Access to these should be protected by dev_priv->irq_lock. */
546         bool cpu_fifo_underrun_disabled;
547         bool pch_fifo_underrun_disabled;
548
549         /* per-pipe watermark state */
550         struct {
551                 /* watermarks currently being used  */
552                 struct intel_pipe_wm active;
553                 /* SKL wm values currently in use */
554                 struct skl_pipe_wm skl_active;
555         } wm;
556
557         int scanline_offset;
558
559         struct intel_crtc_atomic_commit atomic;
560
561         /* scalers available on this crtc */
562         int num_scalers;
563 };
564
565 struct intel_plane_wm_parameters {
566         uint32_t horiz_pixels;
567         uint32_t vert_pixels;
568         /*
569          *   For packed pixel formats:
570          *     bytes_per_pixel - holds bytes per pixel
571          *   For planar pixel formats:
572          *     bytes_per_pixel - holds bytes per pixel for uv-plane
573          *     y_bytes_per_pixel - holds bytes per pixel for y-plane
574          */
575         uint8_t bytes_per_pixel;
576         uint8_t y_bytes_per_pixel;
577         bool enabled;
578         bool scaled;
579         u64 tiling;
580         unsigned int rotation;
581 };
582
583 struct intel_plane {
584         struct drm_plane base;
585         int plane;
586         enum pipe pipe;
587         bool can_scale;
588         int max_downscale;
589
590         /* FIXME convert to properties */
591         struct drm_intel_sprite_colorkey ckey;
592
593         /* Since we need to change the watermarks before/after
594          * enabling/disabling the planes, we need to store the parameters here
595          * as the other pieces of the struct may not reflect the values we want
596          * for the watermark calculations. Currently only Haswell uses this.
597          */
598         struct intel_plane_wm_parameters wm;
599
600         /*
601          * NOTE: Do not place new plane state fields here (e.g., when adding
602          * new plane properties).  New runtime state should now be placed in
603          * the intel_plane_state structure and accessed via drm_plane->state.
604          */
605
606         void (*update_plane)(struct drm_plane *plane,
607                              struct drm_crtc *crtc,
608                              struct drm_framebuffer *fb,
609                              int crtc_x, int crtc_y,
610                              unsigned int crtc_w, unsigned int crtc_h,
611                              uint32_t x, uint32_t y,
612                              uint32_t src_w, uint32_t src_h);
613         void (*disable_plane)(struct drm_plane *plane,
614                               struct drm_crtc *crtc, bool force);
615         int (*check_plane)(struct drm_plane *plane,
616                            struct intel_plane_state *state);
617         void (*commit_plane)(struct drm_plane *plane,
618                              struct intel_plane_state *state);
619 };
620
621 struct intel_watermark_params {
622         unsigned long fifo_size;
623         unsigned long max_wm;
624         unsigned long default_wm;
625         unsigned long guard_size;
626         unsigned long cacheline_size;
627 };
628
629 struct cxsr_latency {
630         int is_desktop;
631         int is_ddr3;
632         unsigned long fsb_freq;
633         unsigned long mem_freq;
634         unsigned long display_sr;
635         unsigned long display_hpll_disable;
636         unsigned long cursor_sr;
637         unsigned long cursor_hpll_disable;
638 };
639
640 #define to_intel_atomic_state(x) container_of(x, struct intel_atomic_state, base)
641 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
642 #define to_intel_crtc_state(x) container_of(x, struct intel_crtc_state, base)
643 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
644 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
645 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
646 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
647 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
648 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
649
650 struct intel_hdmi {
651         u32 hdmi_reg;
652         int ddc_bus;
653         uint32_t color_range;
654         bool color_range_auto;
655         bool has_hdmi_sink;
656         bool has_audio;
657         enum hdmi_force_audio force_audio;
658         bool rgb_quant_range_selectable;
659         enum hdmi_picture_aspect aspect_ratio;
660         void (*write_infoframe)(struct drm_encoder *encoder,
661                                 enum hdmi_infoframe_type type,
662                                 const void *frame, ssize_t len);
663         void (*set_infoframes)(struct drm_encoder *encoder,
664                                bool enable,
665                                struct drm_display_mode *adjusted_mode);
666         bool (*infoframe_enabled)(struct drm_encoder *encoder);
667 };
668
669 struct intel_dp_mst_encoder;
670 #define DP_MAX_DOWNSTREAM_PORTS         0x10
671
672 /*
673  * enum link_m_n_set:
674  *      When platform provides two set of M_N registers for dp, we can
675  *      program them and switch between them incase of DRRS.
676  *      But When only one such register is provided, we have to program the
677  *      required divider value on that registers itself based on the DRRS state.
678  *
679  * M1_N1        : Program dp_m_n on M1_N1 registers
680  *                        dp_m2_n2 on M2_N2 registers (If supported)
681  *
682  * M2_N2        : Program dp_m2_n2 on M1_N1 registers
683  *                        M2_N2 registers are not supported
684  */
685
686 enum link_m_n_set {
687         /* Sets the m1_n1 and m2_n2 */
688         M1_N1 = 0,
689         M2_N2
690 };
691
692 struct intel_dp {
693         uint32_t output_reg;
694         uint32_t aux_ch_ctl_reg;
695         uint32_t DP;
696         bool has_audio;
697         enum hdmi_force_audio force_audio;
698         uint32_t color_range;
699         bool color_range_auto;
700         uint8_t link_bw;
701         uint8_t rate_select;
702         uint8_t lane_count;
703         uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
704         uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
705         uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
706         /* sink rates as reported by DP_SUPPORTED_LINK_RATES */
707         uint8_t num_sink_rates;
708         int sink_rates[DP_MAX_SUPPORTED_RATES];
709         struct drm_dp_aux aux;
710         uint8_t train_set[4];
711         int panel_power_up_delay;
712         int panel_power_down_delay;
713         int panel_power_cycle_delay;
714         int backlight_on_delay;
715         int backlight_off_delay;
716         struct delayed_work panel_vdd_work;
717         bool want_panel_vdd;
718         unsigned long last_power_cycle;
719         unsigned long last_power_on;
720         unsigned long last_backlight_off;
721
722         struct notifier_block edp_notifier;
723
724         /*
725          * Pipe whose power sequencer is currently locked into
726          * this port. Only relevant on VLV/CHV.
727          */
728         enum pipe pps_pipe;
729         struct edp_power_seq pps_delays;
730
731         bool use_tps3;
732         bool can_mst; /* this port supports mst */
733         bool is_mst;
734         int active_mst_links;
735         /* connector directly attached - won't be use for modeset in mst world */
736         struct intel_connector *attached_connector;
737
738         /* mst connector list */
739         struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
740         struct drm_dp_mst_topology_mgr mst_mgr;
741
742         uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
743         /*
744          * This function returns the value we have to program the AUX_CTL
745          * register with to kick off an AUX transaction.
746          */
747         uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
748                                      bool has_aux_irq,
749                                      int send_bytes,
750                                      uint32_t aux_clock_divider);
751         bool train_set_valid;
752
753         /* Displayport compliance testing */
754         unsigned long compliance_test_type;
755         unsigned long compliance_test_data;
756         bool compliance_test_active;
757 };
758
759 struct intel_digital_port {
760         struct intel_encoder base;
761         enum port port;
762         u32 saved_port_bits;
763         struct intel_dp dp;
764         struct intel_hdmi hdmi;
765         enum irqreturn (*hpd_pulse)(struct intel_digital_port *, bool);
766 };
767
768 struct intel_dp_mst_encoder {
769         struct intel_encoder base;
770         enum pipe pipe;
771         struct intel_digital_port *primary;
772         void *port; /* store this opaque as its illegal to dereference it */
773 };
774
775 static inline int
776 vlv_dport_to_channel(struct intel_digital_port *dport)
777 {
778         switch (dport->port) {
779         case PORT_B:
780         case PORT_D:
781                 return DPIO_CH0;
782         case PORT_C:
783                 return DPIO_CH1;
784         default:
785                 BUG();
786         }
787 }
788
789 static inline int
790 vlv_pipe_to_channel(enum pipe pipe)
791 {
792         switch (pipe) {
793         case PIPE_A:
794         case PIPE_C:
795                 return DPIO_CH0;
796         case PIPE_B:
797                 return DPIO_CH1;
798         default:
799                 BUG();
800         }
801 }
802
803 static inline struct drm_crtc *
804 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
805 {
806         struct drm_i915_private *dev_priv = dev->dev_private;
807         return dev_priv->pipe_to_crtc_mapping[pipe];
808 }
809
810 static inline struct drm_crtc *
811 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
812 {
813         struct drm_i915_private *dev_priv = dev->dev_private;
814         return dev_priv->plane_to_crtc_mapping[plane];
815 }
816
817 struct intel_unpin_work {
818         struct work_struct work;
819         struct drm_crtc *crtc;
820         struct drm_framebuffer *old_fb;
821         struct drm_i915_gem_object *pending_flip_obj;
822         struct drm_pending_vblank_event *event;
823         atomic_t pending;
824 #define INTEL_FLIP_INACTIVE     0
825 #define INTEL_FLIP_PENDING      1
826 #define INTEL_FLIP_COMPLETE     2
827         u32 flip_count;
828         u32 gtt_offset;
829         struct drm_i915_gem_request *flip_queued_req;
830         int flip_queued_vblank;
831         int flip_ready_vblank;
832         bool enable_stall_check;
833 };
834
835 struct intel_load_detect_pipe {
836         struct drm_framebuffer *release_fb;
837         bool load_detect_temp;
838         int dpms_mode;
839 };
840
841 static inline struct intel_encoder *
842 intel_attached_encoder(struct drm_connector *connector)
843 {
844         return to_intel_connector(connector)->encoder;
845 }
846
847 static inline struct intel_digital_port *
848 enc_to_dig_port(struct drm_encoder *encoder)
849 {
850         return container_of(encoder, struct intel_digital_port, base.base);
851 }
852
853 static inline struct intel_dp_mst_encoder *
854 enc_to_mst(struct drm_encoder *encoder)
855 {
856         return container_of(encoder, struct intel_dp_mst_encoder, base.base);
857 }
858
859 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
860 {
861         return &enc_to_dig_port(encoder)->dp;
862 }
863
864 static inline struct intel_digital_port *
865 dp_to_dig_port(struct intel_dp *intel_dp)
866 {
867         return container_of(intel_dp, struct intel_digital_port, dp);
868 }
869
870 static inline struct intel_digital_port *
871 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
872 {
873         return container_of(intel_hdmi, struct intel_digital_port, hdmi);
874 }
875
876 /*
877  * Returns the number of planes for this pipe, ie the number of sprites + 1
878  * (primary plane). This doesn't count the cursor plane then.
879  */
880 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
881 {
882         return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
883 }
884
885 /* intel_fifo_underrun.c */
886 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
887                                            enum pipe pipe, bool enable);
888 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
889                                            enum transcoder pch_transcoder,
890                                            bool enable);
891 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
892                                          enum pipe pipe);
893 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
894                                          enum transcoder pch_transcoder);
895 void i9xx_check_fifo_underruns(struct drm_i915_private *dev_priv);
896
897 /* i915_irq.c */
898 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
899 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
900 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
901 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
902 void gen6_reset_rps_interrupts(struct drm_device *dev);
903 void gen6_enable_rps_interrupts(struct drm_device *dev);
904 void gen6_disable_rps_interrupts(struct drm_device *dev);
905 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
906 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
907 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
908 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
909 {
910         /*
911          * We only use drm_irq_uninstall() at unload and VT switch, so
912          * this is the only thing we need to check.
913          */
914         return dev_priv->pm.irqs_enabled;
915 }
916
917 int intel_get_crtc_scanline(struct intel_crtc *crtc);
918 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv,
919                                      unsigned int pipe_mask);
920
921 /* intel_crt.c */
922 void intel_crt_init(struct drm_device *dev);
923
924
925 /* intel_ddi.c */
926 void intel_prepare_ddi(struct drm_device *dev);
927 void hsw_fdi_link_train(struct drm_crtc *crtc);
928 void intel_ddi_init(struct drm_device *dev, enum port port);
929 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
930 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum pipe *pipe);
931 void intel_ddi_pll_init(struct drm_device *dev);
932 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
933 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
934                                        enum transcoder cpu_transcoder);
935 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
936 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
937 bool intel_ddi_pll_select(struct intel_crtc *crtc,
938                           struct intel_crtc_state *crtc_state);
939 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
940 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
941 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
942 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
943 void intel_ddi_get_config(struct intel_encoder *encoder,
944                           struct intel_crtc_state *pipe_config);
945 struct intel_encoder *
946 intel_ddi_get_crtc_new_encoder(struct intel_crtc_state *crtc_state);
947
948 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
949 void intel_ddi_clock_get(struct intel_encoder *encoder,
950                          struct intel_crtc_state *pipe_config);
951 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
952 void bxt_ddi_vswing_sequence(struct drm_device *dev, u32 level,
953                                 enum port port, int type);
954
955 /* intel_frontbuffer.c */
956 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
957                              struct intel_engine_cs *ring,
958                              enum fb_op_origin origin);
959 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
960                                     unsigned frontbuffer_bits);
961 void intel_frontbuffer_flip_complete(struct drm_device *dev,
962                                      unsigned frontbuffer_bits);
963 void intel_frontbuffer_flush(struct drm_device *dev,
964                              unsigned frontbuffer_bits);
965 /**
966  * intel_frontbuffer_flip - synchronous frontbuffer flip
967  * @dev: DRM device
968  * @frontbuffer_bits: frontbuffer plane tracking bits
969  *
970  * This function gets called after scheduling a flip on @obj. This is for
971  * synchronous plane updates which will happen on the next vblank and which will
972  * not get delayed by pending gpu rendering.
973  *
974  * Can be called without any locks held.
975  */
976 static inline
977 void intel_frontbuffer_flip(struct drm_device *dev,
978                             unsigned frontbuffer_bits)
979 {
980         intel_frontbuffer_flush(dev, frontbuffer_bits);
981 }
982
983 unsigned int intel_fb_align_height(struct drm_device *dev,
984                                    unsigned int height,
985                                    uint32_t pixel_format,
986                                    uint64_t fb_format_modifier);
987 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire);
988
989 u32 intel_fb_stride_alignment(struct drm_device *dev, uint64_t fb_modifier,
990                               uint32_t pixel_format);
991
992 /* intel_audio.c */
993 void intel_init_audio(struct drm_device *dev);
994 void intel_audio_codec_enable(struct intel_encoder *encoder);
995 void intel_audio_codec_disable(struct intel_encoder *encoder);
996 void i915_audio_component_init(struct drm_i915_private *dev_priv);
997 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
998
999 /* intel_display.c */
1000 extern const struct drm_plane_funcs intel_plane_funcs;
1001 bool intel_has_pending_fb_unpin(struct drm_device *dev);
1002 int intel_pch_rawclk(struct drm_device *dev);
1003 void intel_mark_busy(struct drm_device *dev);
1004 void intel_mark_idle(struct drm_device *dev);
1005 void intel_crtc_restore_mode(struct drm_crtc *crtc);
1006 void intel_display_suspend(struct drm_device *dev);
1007 int intel_crtc_control(struct drm_crtc *crtc, bool enable);
1008 void intel_crtc_update_dpms(struct drm_crtc *crtc);
1009 void intel_encoder_destroy(struct drm_encoder *encoder);
1010 int intel_connector_init(struct intel_connector *);
1011 struct intel_connector *intel_connector_alloc(void);
1012 void intel_connector_dpms(struct drm_connector *, int mode);
1013 bool intel_connector_get_hw_state(struct intel_connector *connector);
1014 void intel_modeset_check_state(struct drm_device *dev);
1015 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
1016                                 struct intel_digital_port *port);
1017 void intel_connector_attach_encoder(struct intel_connector *connector,
1018                                     struct intel_encoder *encoder);
1019 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
1020 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
1021                                              struct drm_crtc *crtc);
1022 enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
1023 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
1024                                 struct drm_file *file_priv);
1025 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
1026                                              enum pipe pipe);
1027 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
1028 static inline void
1029 intel_wait_for_vblank(struct drm_device *dev, int pipe)
1030 {
1031         drm_wait_one_vblank(dev, pipe);
1032 }
1033 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
1034 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
1035                          struct intel_digital_port *dport,
1036                          unsigned int expected_mask);
1037 bool intel_get_load_detect_pipe(struct drm_connector *connector,
1038                                 struct drm_display_mode *mode,
1039                                 struct intel_load_detect_pipe *old,
1040                                 struct drm_modeset_acquire_ctx *ctx);
1041 void intel_release_load_detect_pipe(struct drm_connector *connector,
1042                                     struct intel_load_detect_pipe *old,
1043                                     struct drm_modeset_acquire_ctx *ctx);
1044 int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
1045                                struct drm_framebuffer *fb,
1046                                const struct drm_plane_state *plane_state,
1047                                struct intel_engine_cs *pipelined);
1048 struct drm_framebuffer *
1049 __intel_framebuffer_create(struct drm_device *dev,
1050                            struct drm_mode_fb_cmd2 *mode_cmd,
1051                            struct drm_i915_gem_object *obj);
1052 void intel_prepare_page_flip(struct drm_device *dev, int plane);
1053 void intel_finish_page_flip(struct drm_device *dev, int pipe);
1054 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
1055 void intel_check_page_flip(struct drm_device *dev, int pipe);
1056 int intel_prepare_plane_fb(struct drm_plane *plane,
1057                            struct drm_framebuffer *fb,
1058                            const struct drm_plane_state *new_state);
1059 void intel_cleanup_plane_fb(struct drm_plane *plane,
1060                             struct drm_framebuffer *fb,
1061                             const struct drm_plane_state *old_state);
1062 int intel_plane_atomic_get_property(struct drm_plane *plane,
1063                                     const struct drm_plane_state *state,
1064                                     struct drm_property *property,
1065                                     uint64_t *val);
1066 int intel_plane_atomic_set_property(struct drm_plane *plane,
1067                                     struct drm_plane_state *state,
1068                                     struct drm_property *property,
1069                                     uint64_t val);
1070 int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
1071                                     struct drm_plane_state *plane_state);
1072
1073 unsigned int
1074 intel_tile_height(struct drm_device *dev, uint32_t pixel_format,
1075                   uint64_t fb_format_modifier);
1076
1077 static inline bool
1078 intel_rotation_90_or_270(unsigned int rotation)
1079 {
1080         return rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270));
1081 }
1082
1083 void intel_create_rotation_property(struct drm_device *dev,
1084                                         struct intel_plane *plane);
1085
1086 /* shared dpll functions */
1087 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
1088 void assert_shared_dpll(struct drm_i915_private *dev_priv,
1089                         struct intel_shared_dpll *pll,
1090                         bool state);
1091 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
1092 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
1093 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
1094                                                 struct intel_crtc_state *state);
1095
1096 void vlv_force_pll_on(struct drm_device *dev, enum pipe pipe,
1097                       const struct dpll *dpll);
1098 void vlv_force_pll_off(struct drm_device *dev, enum pipe pipe);
1099
1100 /* modesetting asserts */
1101 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
1102                            enum pipe pipe);
1103 void assert_pll(struct drm_i915_private *dev_priv,
1104                 enum pipe pipe, bool state);
1105 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
1106 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
1107 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
1108                        enum pipe pipe, bool state);
1109 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
1110 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
1111 void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe, bool state);
1112 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
1113 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
1114 unsigned long intel_gen4_compute_page_offset(struct drm_i915_private *dev_priv,
1115                                              int *x, int *y,
1116                                              unsigned int tiling_mode,
1117                                              unsigned int bpp,
1118                                              unsigned int pitch);
1119 void intel_prepare_reset(struct drm_device *dev);
1120 void intel_finish_reset(struct drm_device *dev);
1121 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
1122 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
1123 void broxton_init_cdclk(struct drm_device *dev);
1124 void broxton_uninit_cdclk(struct drm_device *dev);
1125 void broxton_ddi_phy_init(struct drm_device *dev);
1126 void broxton_ddi_phy_uninit(struct drm_device *dev);
1127 void bxt_enable_dc9(struct drm_i915_private *dev_priv);
1128 void bxt_disable_dc9(struct drm_i915_private *dev_priv);
1129 void skl_init_cdclk(struct drm_i915_private *dev_priv);
1130 void skl_uninit_cdclk(struct drm_i915_private *dev_priv);
1131 void intel_dp_get_m_n(struct intel_crtc *crtc,
1132                       struct intel_crtc_state *pipe_config);
1133 void intel_dp_set_m_n(struct intel_crtc *crtc, enum link_m_n_set m_n);
1134 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
1135 void
1136 ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
1137                                 int dotclock);
1138 bool bxt_find_best_dpll(struct intel_crtc_state *crtc_state, int target_clock,
1139                         intel_clock_t *best_clock);
1140 bool intel_crtc_active(struct drm_crtc *crtc);
1141 void hsw_enable_ips(struct intel_crtc *crtc);
1142 void hsw_disable_ips(struct intel_crtc *crtc);
1143 enum intel_display_power_domain
1144 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1145 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1146                                  struct intel_crtc_state *pipe_config);
1147 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
1148 void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
1149 void skl_detach_scalers(struct intel_crtc *intel_crtc);
1150
1151 int skl_update_scaler_crtc(struct intel_crtc_state *crtc_state, int force_detach);
1152 int skl_max_scale(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state);
1153
1154 unsigned long intel_plane_obj_offset(struct intel_plane *intel_plane,
1155                                      struct drm_i915_gem_object *obj);
1156 u32 skl_plane_ctl_format(uint32_t pixel_format);
1157 u32 skl_plane_ctl_tiling(uint64_t fb_modifier);
1158 u32 skl_plane_ctl_rotation(unsigned int rotation);
1159
1160 /* intel_csr.c */
1161 void intel_csr_ucode_init(struct drm_device *dev);
1162 enum csr_state intel_csr_load_status_get(struct drm_i915_private *dev_priv);
1163 void intel_csr_load_status_set(struct drm_i915_private *dev_priv,
1164                                         enum csr_state state);
1165 void intel_csr_load_program(struct drm_device *dev);
1166 void intel_csr_ucode_fini(struct drm_device *dev);
1167 void assert_csr_loaded(struct drm_i915_private *dev_priv);
1168
1169 /* intel_dp.c */
1170 void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
1171 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1172                              struct intel_connector *intel_connector);
1173 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1174 void intel_dp_complete_link_train(struct intel_dp *intel_dp);
1175 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1176 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1177 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1178 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1179 bool intel_dp_compute_config(struct intel_encoder *encoder,
1180                              struct intel_crtc_state *pipe_config);
1181 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1182 enum irqreturn intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1183                                   bool long_hpd);
1184 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1185 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1186 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1187 void intel_edp_panel_on(struct intel_dp *intel_dp);
1188 void intel_edp_panel_off(struct intel_dp *intel_dp);
1189 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1190 void intel_dp_mst_suspend(struct drm_device *dev);
1191 void intel_dp_mst_resume(struct drm_device *dev);
1192 int intel_dp_max_link_rate(struct intel_dp *intel_dp);
1193 int intel_dp_rate_select(struct intel_dp *intel_dp, int rate);
1194 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1195 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1196 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1197 void intel_plane_destroy(struct drm_plane *plane);
1198 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1199 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1200 void intel_edp_drrs_invalidate(struct drm_device *dev,
1201                 unsigned frontbuffer_bits);
1202 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1203
1204 /* intel_dp_mst.c */
1205 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1206 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1207 /* intel_dsi.c */
1208 void intel_dsi_init(struct drm_device *dev);
1209
1210
1211 /* intel_dvo.c */
1212 void intel_dvo_init(struct drm_device *dev);
1213
1214
1215 /* legacy fbdev emulation in intel_fbdev.c */
1216 #ifdef CONFIG_DRM_I915_FBDEV
1217 extern int intel_fbdev_init(struct drm_device *dev);
1218 extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
1219 extern void intel_fbdev_fini(struct drm_device *dev);
1220 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1221 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1222 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1223 #else
1224 static inline int intel_fbdev_init(struct drm_device *dev)
1225 {
1226         return 0;
1227 }
1228
1229 static inline void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
1230 {
1231 }
1232
1233 static inline void intel_fbdev_fini(struct drm_device *dev)
1234 {
1235 }
1236
1237 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1238 {
1239 }
1240
1241 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1242 {
1243 }
1244 #endif
1245
1246 /* intel_fbc.c */
1247 bool intel_fbc_enabled(struct drm_device *dev);
1248 void intel_fbc_update(struct drm_device *dev);
1249 void intel_fbc_init(struct drm_i915_private *dev_priv);
1250 void intel_fbc_disable(struct drm_device *dev);
1251 void intel_fbc_invalidate(struct drm_i915_private *dev_priv,
1252                           unsigned int frontbuffer_bits,
1253                           enum fb_op_origin origin);
1254 void intel_fbc_flush(struct drm_i915_private *dev_priv,
1255                      unsigned int frontbuffer_bits);
1256 const char *intel_no_fbc_reason_str(enum no_fbc_reason reason);
1257
1258 /* intel_hdmi.c */
1259 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
1260 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1261                                struct intel_connector *intel_connector);
1262 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1263 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1264                                struct intel_crtc_state *pipe_config);
1265
1266
1267 /* intel_lvds.c */
1268 void intel_lvds_init(struct drm_device *dev);
1269 bool intel_is_dual_link_lvds(struct drm_device *dev);
1270
1271
1272 /* intel_modes.c */
1273 int intel_connector_update_modes(struct drm_connector *connector,
1274                                  struct edid *edid);
1275 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1276 void intel_attach_force_audio_property(struct drm_connector *connector);
1277 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1278
1279
1280 /* intel_overlay.c */
1281 void intel_setup_overlay(struct drm_device *dev);
1282 void intel_cleanup_overlay(struct drm_device *dev);
1283 int intel_overlay_switch_off(struct intel_overlay *overlay);
1284 int intel_overlay_put_image(struct drm_device *dev, void *data,
1285                             struct drm_file *file_priv);
1286 int intel_overlay_attrs(struct drm_device *dev, void *data,
1287                         struct drm_file *file_priv);
1288 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1289
1290
1291 /* intel_panel.c */
1292 int intel_panel_init(struct intel_panel *panel,
1293                      struct drm_display_mode *fixed_mode,
1294                      struct drm_display_mode *downclock_mode);
1295 void intel_panel_fini(struct intel_panel *panel);
1296 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1297                             struct drm_display_mode *adjusted_mode);
1298 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1299                              struct intel_crtc_state *pipe_config,
1300                              int fitting_mode);
1301 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1302                               struct intel_crtc_state *pipe_config,
1303                               int fitting_mode);
1304 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1305                                     u32 level, u32 max);
1306 int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe);
1307 void intel_panel_enable_backlight(struct intel_connector *connector);
1308 void intel_panel_disable_backlight(struct intel_connector *connector);
1309 void intel_panel_destroy_backlight(struct drm_connector *connector);
1310 void intel_panel_init_backlight_funcs(struct drm_device *dev);
1311 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1312 extern struct drm_display_mode *intel_find_panel_downclock(
1313                                 struct drm_device *dev,
1314                                 struct drm_display_mode *fixed_mode,
1315                                 struct drm_connector *connector);
1316 void intel_backlight_register(struct drm_device *dev);
1317 void intel_backlight_unregister(struct drm_device *dev);
1318
1319
1320 /* intel_psr.c */
1321 void intel_psr_enable(struct intel_dp *intel_dp);
1322 void intel_psr_disable(struct intel_dp *intel_dp);
1323 void intel_psr_invalidate(struct drm_device *dev,
1324                               unsigned frontbuffer_bits);
1325 void intel_psr_flush(struct drm_device *dev,
1326                          unsigned frontbuffer_bits);
1327 void intel_psr_init(struct drm_device *dev);
1328 void intel_psr_single_frame_update(struct drm_device *dev);
1329
1330 /* intel_runtime_pm.c */
1331 int intel_power_domains_init(struct drm_i915_private *);
1332 void intel_power_domains_fini(struct drm_i915_private *);
1333 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
1334 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1335
1336 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1337                                     enum intel_display_power_domain domain);
1338 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1339                                       enum intel_display_power_domain domain);
1340 void intel_display_power_get(struct drm_i915_private *dev_priv,
1341                              enum intel_display_power_domain domain);
1342 void intel_display_power_put(struct drm_i915_private *dev_priv,
1343                              enum intel_display_power_domain domain);
1344 void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
1345 void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
1346 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1347 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1348 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1349
1350 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1351
1352 /* intel_pm.c */
1353 void intel_init_clock_gating(struct drm_device *dev);
1354 void intel_suspend_hw(struct drm_device *dev);
1355 int ilk_wm_max_level(const struct drm_device *dev);
1356 void intel_update_watermarks(struct drm_crtc *crtc);
1357 void intel_update_sprite_watermarks(struct drm_plane *plane,
1358                                     struct drm_crtc *crtc,
1359                                     uint32_t sprite_width,
1360                                     uint32_t sprite_height,
1361                                     int pixel_size,
1362                                     bool enabled, bool scaled);
1363 void intel_init_pm(struct drm_device *dev);
1364 void intel_pm_setup(struct drm_device *dev);
1365 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1366 void intel_gpu_ips_teardown(void);
1367 void intel_init_gt_powersave(struct drm_device *dev);
1368 void intel_cleanup_gt_powersave(struct drm_device *dev);
1369 void intel_enable_gt_powersave(struct drm_device *dev);
1370 void intel_disable_gt_powersave(struct drm_device *dev);
1371 void intel_suspend_gt_powersave(struct drm_device *dev);
1372 void intel_reset_gt_powersave(struct drm_device *dev);
1373 void gen6_update_ring_freq(struct drm_device *dev);
1374 void gen6_rps_busy(struct drm_i915_private *dev_priv);
1375 void gen6_rps_reset_ei(struct drm_i915_private *dev_priv);
1376 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1377 void gen6_rps_boost(struct drm_i915_private *dev_priv,
1378                     struct intel_rps_client *rps,
1379                     unsigned long submitted);
1380 void intel_queue_rps_boost_for_request(struct drm_device *dev,
1381                                        struct drm_i915_gem_request *req);
1382 void ilk_wm_get_hw_state(struct drm_device *dev);
1383 void skl_wm_get_hw_state(struct drm_device *dev);
1384 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1385                           struct skl_ddb_allocation *ddb /* out */);
1386 uint32_t ilk_pipe_pixel_rate(const struct intel_crtc_state *pipe_config);
1387
1388 /* intel_sdvo.c */
1389 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1390
1391
1392 /* intel_sprite.c */
1393 int intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane);
1394 int intel_plane_restore(struct drm_plane *plane);
1395 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1396                               struct drm_file *file_priv);
1397 bool intel_pipe_update_start(struct intel_crtc *crtc,
1398                              uint32_t *start_vbl_count);
1399 void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count);
1400
1401 /* intel_tv.c */
1402 void intel_tv_init(struct drm_device *dev);
1403
1404 /* intel_atomic.c */
1405 int intel_atomic_check(struct drm_device *dev,
1406                        struct drm_atomic_state *state);
1407 int intel_atomic_commit(struct drm_device *dev,
1408                         struct drm_atomic_state *state,
1409                         bool async);
1410 int intel_connector_atomic_get_property(struct drm_connector *connector,
1411                                         const struct drm_connector_state *state,
1412                                         struct drm_property *property,
1413                                         uint64_t *val);
1414 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1415 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1416                                struct drm_crtc_state *state);
1417 struct drm_atomic_state *intel_atomic_state_alloc(struct drm_device *dev);
1418 void intel_atomic_state_clear(struct drm_atomic_state *);
1419 struct intel_shared_dpll_config *
1420 intel_atomic_get_shared_dpll_state(struct drm_atomic_state *s);
1421
1422 static inline struct intel_crtc_state *
1423 intel_atomic_get_crtc_state(struct drm_atomic_state *state,
1424                             struct intel_crtc *crtc)
1425 {
1426         struct drm_crtc_state *crtc_state;
1427         crtc_state = drm_atomic_get_crtc_state(state, &crtc->base);
1428         if (IS_ERR(crtc_state))
1429                 return ERR_CAST(crtc_state);
1430
1431         return to_intel_crtc_state(crtc_state);
1432 }
1433 int intel_atomic_setup_scalers(struct drm_device *dev,
1434         struct intel_crtc *intel_crtc,
1435         struct intel_crtc_state *crtc_state);
1436
1437 /* intel_atomic_plane.c */
1438 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1439 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1440 void intel_plane_destroy_state(struct drm_plane *plane,
1441                                struct drm_plane_state *state);
1442 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1443
1444 #endif /* __INTEL_DRV_H__ */