xref: /dragonfly/sys/dev/drm/i915/intel_drv.h (revision ad7194d9)
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 
39 #define DIV_ROUND_CLOSEST_ULL(ll, d)	\
40 ({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
41 
42 /**
43  * _wait_for - magic (register) wait macro
44  *
45  * Does the right thing for modeset paths when run under kdgb or similar atomic
46  * contexts. Note that it's important that we check the condition again after
47  * having timed out, since the timeout could be due to preemption or similar and
48  * we've never had a chance to check the condition before the timeout.
49  */
50 #define _wait_for(COND, MS, W) ({ \
51 	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS) + 1;	\
52 	int ret__ = 0;							\
53 	while (!(COND)) {						\
54 		if (time_after(jiffies, timeout__)) {			\
55 			if (!(COND))					\
56 				ret__ = -ETIMEDOUT;			\
57 			break;						\
58 		}							\
59 		if (W && drm_can_sleep())  {				\
60 			msleep(W);					\
61 		} else {						\
62 			cpu_pause();					\
63 		}							\
64 	}								\
65 	ret__;								\
66 })
67 
68 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
69 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
70 #define wait_for_atomic_us(COND, US) _wait_for((COND), \
71 					       DIV_ROUND_UP((US), 1000), 0)
72 
73 #define KHz(x) (1000 * (x))
74 #define MHz(x) KHz(1000 * (x))
75 
76 /*
77  * Display related stuff
78  */
79 
80 /* store information about an Ixxx DVO */
81 /* The i830->i865 use multiple DVOs with multiple i2cs */
82 /* the i915, i945 have a single sDVO i2c bus - which is different */
83 #define MAX_OUTPUTS 6
84 /* maximum connectors per crtcs in the mode set */
85 
86 /* Maximum cursor sizes */
87 #define GEN2_CURSOR_WIDTH 64
88 #define GEN2_CURSOR_HEIGHT 64
89 #define MAX_CURSOR_WIDTH 256
90 #define MAX_CURSOR_HEIGHT 256
91 
92 #define INTEL_I2C_BUS_DVO 1
93 #define INTEL_I2C_BUS_SDVO 2
94 
95 /* these are outputs from the chip - integrated only
96    external chips are via DVO or SDVO output */
97 enum intel_output_type {
98 	INTEL_OUTPUT_UNUSED = 0,
99 	INTEL_OUTPUT_ANALOG = 1,
100 	INTEL_OUTPUT_DVO = 2,
101 	INTEL_OUTPUT_SDVO = 3,
102 	INTEL_OUTPUT_LVDS = 4,
103 	INTEL_OUTPUT_TVOUT = 5,
104 	INTEL_OUTPUT_HDMI = 6,
105 	INTEL_OUTPUT_DISPLAYPORT = 7,
106 	INTEL_OUTPUT_EDP = 8,
107 	INTEL_OUTPUT_DSI = 9,
108 	INTEL_OUTPUT_UNKNOWN = 10,
109 	INTEL_OUTPUT_DP_MST = 11,
110 };
111 
112 #define INTEL_DVO_CHIP_NONE 0
113 #define INTEL_DVO_CHIP_LVDS 1
114 #define INTEL_DVO_CHIP_TMDS 2
115 #define INTEL_DVO_CHIP_TVOUT 4
116 
117 #define INTEL_DSI_VIDEO_MODE	0
118 #define INTEL_DSI_COMMAND_MODE	1
119 
120 struct intel_framebuffer {
121 	struct drm_framebuffer base;
122 	struct drm_i915_gem_object *obj;
123 };
124 
125 struct intel_fbdev {
126 	struct drm_fb_helper helper;
127 	struct intel_framebuffer *fb;
128 	struct list_head fbdev_list;
129 	struct drm_display_mode *our_mode;
130 	int preferred_bpp;
131 };
132 
133 struct intel_encoder {
134 	struct drm_encoder base;
135 	/*
136 	 * The new crtc this encoder will be driven from. Only differs from
137 	 * base->crtc while a modeset is in progress.
138 	 */
139 	struct intel_crtc *new_crtc;
140 
141 	enum intel_output_type type;
142 	unsigned int cloneable;
143 	bool connectors_active;
144 	void (*hot_plug)(struct intel_encoder *);
145 	bool (*compute_config)(struct intel_encoder *,
146 			       struct intel_crtc_state *);
147 	void (*pre_pll_enable)(struct intel_encoder *);
148 	void (*pre_enable)(struct intel_encoder *);
149 	void (*enable)(struct intel_encoder *);
150 	void (*mode_set)(struct intel_encoder *intel_encoder);
151 	void (*disable)(struct intel_encoder *);
152 	void (*post_disable)(struct intel_encoder *);
153 	/* Read out the current hw state of this connector, returning true if
154 	 * the encoder is active. If the encoder is enabled it also set the pipe
155 	 * it is connected to in the pipe parameter. */
156 	bool (*get_hw_state)(struct intel_encoder *, enum i915_pipe *pipe);
157 	/* Reconstructs the equivalent mode flags for the current hardware
158 	 * state. This must be called _after_ display->get_pipe_config has
159 	 * pre-filled the pipe config. Note that intel_encoder->base.crtc must
160 	 * be set correctly before calling this function. */
161 	void (*get_config)(struct intel_encoder *,
162 			   struct intel_crtc_state *pipe_config);
163 	/*
164 	 * Called during system suspend after all pending requests for the
165 	 * encoder are flushed (for example for DP AUX transactions) and
166 	 * device interrupts are disabled.
167 	 */
168 	void (*suspend)(struct intel_encoder *);
169 	int crtc_mask;
170 	enum hpd_pin hpd_pin;
171 };
172 
173 struct intel_panel {
174 	struct drm_display_mode *fixed_mode;
175 	struct drm_display_mode *downclock_mode;
176 	int fitting_mode;
177 
178 	/* backlight */
179 	struct {
180 		bool present;
181 		u32 level;
182 		u32 min;
183 		u32 max;
184 		bool enabled;
185 		bool combination_mode;	/* gen 2/4 only */
186 		bool active_low_pwm;
187 		struct backlight_device *device;
188 	} backlight;
189 
190 	void (*backlight_power)(struct intel_connector *, bool enable);
191 };
192 
193 struct intel_connector {
194 	struct drm_connector base;
195 	/*
196 	 * The fixed encoder this connector is connected to.
197 	 */
198 	struct intel_encoder *encoder;
199 
200 	/*
201 	 * The new encoder this connector will be driven. Only differs from
202 	 * encoder while a modeset is in progress.
203 	 */
204 	struct intel_encoder *new_encoder;
205 
206 	/* Reads out the current hw, returning true if the connector is enabled
207 	 * and active (i.e. dpms ON state). */
208 	bool (*get_hw_state)(struct intel_connector *);
209 
210 	/*
211 	 * Removes all interfaces through which the connector is accessible
212 	 * - like sysfs, debugfs entries -, so that no new operations can be
213 	 * started on the connector. Also makes sure all currently pending
214 	 * operations finish before returing.
215 	 */
216 	void (*unregister)(struct intel_connector *);
217 
218 	/* Panel info for eDP and LVDS */
219 	struct intel_panel panel;
220 
221 	/* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
222 	struct edid *edid;
223 	struct edid *detect_edid;
224 
225 	/* since POLL and HPD connectors may use the same HPD line keep the native
226 	   state of connector->polled in case hotplug storm detection changes it */
227 	u8 polled;
228 
229 	void *port; /* store this opaque as its illegal to dereference it */
230 
231 	struct intel_dp *mst_port;
232 };
233 
234 typedef struct dpll {
235 	/* given values */
236 	int n;
237 	int m1, m2;
238 	int p1, p2;
239 	/* derived values */
240 	int	dot;
241 	int	vco;
242 	int	m;
243 	int	p;
244 } intel_clock_t;
245 
246 struct intel_plane_state {
247 	struct drm_plane_state base;
248 	struct drm_rect src;
249 	struct drm_rect dst;
250 	struct drm_rect clip;
251 	bool visible;
252 
253 	/*
254 	 * used only for sprite planes to determine when to implicitly
255 	 * enable/disable the primary plane
256 	 */
257 	bool hides_primary;
258 };
259 
260 struct intel_initial_plane_config {
261 	unsigned int tiling;
262 	int size;
263 	u32 base;
264 };
265 
266 struct intel_crtc_state {
267 	struct drm_crtc_state base;
268 
269 	/**
270 	 * quirks - bitfield with hw state readout quirks
271 	 *
272 	 * For various reasons the hw state readout code might not be able to
273 	 * completely faithfully read out the current state. These cases are
274 	 * tracked with quirk flags so that fastboot and state checker can act
275 	 * accordingly.
276 	 */
277 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS	(1<<0) /* unreliable sync mode.flags */
278 #define PIPE_CONFIG_QUIRK_INHERITED_MODE	(1<<1) /* mode inherited from firmware */
279 	unsigned long quirks;
280 
281 	/* Pipe source size (ie. panel fitter input size)
282 	 * All planes will be positioned inside this space,
283 	 * and get clipped at the edges. */
284 	int pipe_src_w, pipe_src_h;
285 
286 	/* Whether to set up the PCH/FDI. Note that we never allow sharing
287 	 * between pch encoders and cpu encoders. */
288 	bool has_pch_encoder;
289 
290 	/* Are we sending infoframes on the attached port */
291 	bool has_infoframe;
292 
293 	/* CPU Transcoder for the pipe. Currently this can only differ from the
294 	 * pipe on Haswell (where we have a special eDP transcoder). */
295 	enum transcoder cpu_transcoder;
296 
297 	/*
298 	 * Use reduced/limited/broadcast rbg range, compressing from the full
299 	 * range fed into the crtcs.
300 	 */
301 	bool limited_color_range;
302 
303 	/* DP has a bunch of special case unfortunately, so mark the pipe
304 	 * accordingly. */
305 	bool has_dp_encoder;
306 
307 	/* Whether we should send NULL infoframes. Required for audio. */
308 	bool has_hdmi_sink;
309 
310 	/* Audio enabled on this pipe. Only valid if either has_hdmi_sink or
311 	 * has_dp_encoder is set. */
312 	bool has_audio;
313 
314 	/*
315 	 * Enable dithering, used when the selected pipe bpp doesn't match the
316 	 * plane bpp.
317 	 */
318 	bool dither;
319 
320 	/* Controls for the clock computation, to override various stages. */
321 	bool clock_set;
322 
323 	/* SDVO TV has a bunch of special case. To make multifunction encoders
324 	 * work correctly, we need to track this at runtime.*/
325 	bool sdvo_tv_clock;
326 
327 	/*
328 	 * crtc bandwidth limit, don't increase pipe bpp or clock if not really
329 	 * required. This is set in the 2nd loop of calling encoder's
330 	 * ->compute_config if the first pick doesn't work out.
331 	 */
332 	bool bw_constrained;
333 
334 	/* Settings for the intel dpll used on pretty much everything but
335 	 * haswell. */
336 	struct dpll dpll;
337 
338 	/* Selected dpll when shared or DPLL_ID_PRIVATE. */
339 	enum intel_dpll_id shared_dpll;
340 
341 	/*
342 	 * - PORT_CLK_SEL for DDI ports on HSW/BDW.
343 	 * - enum skl_dpll on SKL
344 	 */
345 	uint32_t ddi_pll_sel;
346 
347 	/* Actual register state of the dpll, for shared dpll cross-checking. */
348 	struct intel_dpll_hw_state dpll_hw_state;
349 
350 	int pipe_bpp;
351 	struct intel_link_m_n dp_m_n;
352 
353 	/* m2_n2 for eDP downclock */
354 	struct intel_link_m_n dp_m2_n2;
355 	bool has_drrs;
356 
357 	/*
358 	 * Frequence the dpll for the port should run at. Differs from the
359 	 * adjusted dotclock e.g. for DP or 12bpc hdmi mode. This is also
360 	 * already multiplied by pixel_multiplier.
361 	 */
362 	int port_clock;
363 
364 	/* Used by SDVO (and if we ever fix it, HDMI). */
365 	unsigned pixel_multiplier;
366 
367 	/* Panel fitter controls for gen2-gen4 + VLV */
368 	struct {
369 		u32 control;
370 		u32 pgm_ratios;
371 		u32 lvds_border_bits;
372 	} gmch_pfit;
373 
374 	/* Panel fitter placement and size for Ironlake+ */
375 	struct {
376 		u32 pos;
377 		u32 size;
378 		bool enabled;
379 		bool force_thru;
380 	} pch_pfit;
381 
382 	/* FDI configuration, only valid if has_pch_encoder is set. */
383 	int fdi_lanes;
384 	struct intel_link_m_n fdi_m_n;
385 
386 	bool ips_enabled;
387 
388 	bool double_wide;
389 
390 	bool dp_encoder_is_mst;
391 	int pbn;
392 };
393 
394 struct intel_pipe_wm {
395 	struct intel_wm_level wm[5];
396 	uint32_t linetime;
397 	bool fbc_wm_enabled;
398 	bool pipe_enabled;
399 	bool sprites_enabled;
400 	bool sprites_scaled;
401 };
402 
403 struct intel_mmio_flip {
404 	struct drm_i915_gem_request *req;
405 	struct work_struct work;
406 };
407 
408 struct skl_pipe_wm {
409 	struct skl_wm_level wm[8];
410 	struct skl_wm_level trans_wm;
411 	uint32_t linetime;
412 };
413 
414 /*
415  * Tracking of operations that need to be performed at the beginning/end of an
416  * atomic commit, outside the atomic section where interrupts are disabled.
417  * These are generally operations that grab mutexes or might otherwise sleep
418  * and thus can't be run with interrupts disabled.
419  */
420 struct intel_crtc_atomic_commit {
421 	/* vblank evasion */
422 	bool evade;
423 	unsigned start_vbl_count;
424 
425 	/* Sleepable operations to perform before commit */
426 	bool wait_for_flips;
427 	bool disable_fbc;
428 	bool pre_disable_primary;
429 	bool update_wm;
430 	unsigned disabled_planes;
431 
432 	/* Sleepable operations to perform after commit */
433 	unsigned fb_bits;
434 	bool wait_vblank;
435 	bool update_fbc;
436 	bool post_enable_primary;
437 	unsigned update_sprite_watermarks;
438 };
439 
440 struct intel_crtc {
441 	struct drm_crtc base;
442 	enum i915_pipe pipe;
443 	enum plane plane;
444 	u8 lut_r[256], lut_g[256], lut_b[256];
445 	/*
446 	 * Whether the crtc and the connected output pipeline is active. Implies
447 	 * that crtc->enabled is set, i.e. the current mode configuration has
448 	 * some outputs connected to this crtc.
449 	 */
450 	bool active;
451 	unsigned long enabled_power_domains;
452 	bool primary_enabled; /* is the primary plane (partially) visible? */
453 	bool lowfreq_avail;
454 	struct intel_overlay *overlay;
455 	struct intel_unpin_work *unpin_work;
456 
457 	atomic_t unpin_work_count;
458 
459 	/* Display surface base address adjustement for pageflips. Note that on
460 	 * gen4+ this only adjusts up to a tile, offsets within a tile are
461 	 * handled in the hw itself (with the TILEOFF register). */
462 	unsigned long dspaddr_offset;
463 
464 	struct drm_i915_gem_object *cursor_bo;
465 	uint32_t cursor_addr;
466 	int16_t cursor_width, cursor_height;
467 	uint32_t cursor_cntl;
468 	uint32_t cursor_size;
469 	uint32_t cursor_base;
470 
471 	struct intel_initial_plane_config plane_config;
472 	struct intel_crtc_state *config;
473 	struct intel_crtc_state *new_config;
474 	bool new_enabled;
475 
476 	/* reset counter value when the last flip was submitted */
477 	unsigned int reset_counter;
478 
479 	/* Access to these should be protected by dev_priv->irq_lock. */
480 	bool cpu_fifo_underrun_disabled;
481 	bool pch_fifo_underrun_disabled;
482 
483 	/* per-pipe watermark state */
484 	struct {
485 		/* watermarks currently being used  */
486 		struct intel_pipe_wm active;
487 		/* SKL wm values currently in use */
488 		struct skl_pipe_wm skl_active;
489 	} wm;
490 
491 	int scanline_offset;
492 	struct intel_mmio_flip mmio_flip;
493 
494 	struct intel_crtc_atomic_commit atomic;
495 };
496 
497 struct intel_plane_wm_parameters {
498 	uint32_t horiz_pixels;
499 	uint32_t vert_pixels;
500 	uint8_t bytes_per_pixel;
501 	bool enabled;
502 	bool scaled;
503 };
504 
505 struct intel_plane {
506 	struct drm_plane base;
507 	int plane;
508 	enum i915_pipe pipe;
509 	struct drm_i915_gem_object *obj;
510 	bool can_scale;
511 	int max_downscale;
512 
513 	/* Since we need to change the watermarks before/after
514 	 * enabling/disabling the planes, we need to store the parameters here
515 	 * as the other pieces of the struct may not reflect the values we want
516 	 * for the watermark calculations. Currently only Haswell uses this.
517 	 */
518 	struct intel_plane_wm_parameters wm;
519 
520 	/*
521 	 * NOTE: Do not place new plane state fields here (e.g., when adding
522 	 * new plane properties).  New runtime state should now be placed in
523 	 * the intel_plane_state structure and accessed via drm_plane->state.
524 	 */
525 
526 	void (*update_plane)(struct drm_plane *plane,
527 			     struct drm_crtc *crtc,
528 			     struct drm_framebuffer *fb,
529 			     struct drm_i915_gem_object *obj,
530 			     int crtc_x, int crtc_y,
531 			     unsigned int crtc_w, unsigned int crtc_h,
532 			     uint32_t x, uint32_t y,
533 			     uint32_t src_w, uint32_t src_h);
534 	void (*disable_plane)(struct drm_plane *plane,
535 			      struct drm_crtc *crtc);
536 	int (*check_plane)(struct drm_plane *plane,
537 			   struct intel_plane_state *state);
538 	void (*commit_plane)(struct drm_plane *plane,
539 			     struct intel_plane_state *state);
540 	int (*update_colorkey)(struct drm_plane *plane,
541 			       struct drm_intel_sprite_colorkey *key);
542 	void (*get_colorkey)(struct drm_plane *plane,
543 			     struct drm_intel_sprite_colorkey *key);
544 };
545 
546 struct intel_watermark_params {
547 	unsigned long fifo_size;
548 	unsigned long max_wm;
549 	unsigned long default_wm;
550 	unsigned long guard_size;
551 	unsigned long cacheline_size;
552 };
553 
554 struct cxsr_latency {
555 	int is_desktop;
556 	int is_ddr3;
557 	unsigned long fsb_freq;
558 	unsigned long mem_freq;
559 	unsigned long display_sr;
560 	unsigned long display_hpll_disable;
561 	unsigned long cursor_sr;
562 	unsigned long cursor_hpll_disable;
563 };
564 
565 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
566 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
567 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
568 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
569 #define to_intel_plane(x) container_of(x, struct intel_plane, base)
570 #define to_intel_plane_state(x) container_of(x, struct intel_plane_state, base)
571 #define intel_fb_obj(x) (x ? to_intel_framebuffer(x)->obj : NULL)
572 
573 struct intel_hdmi {
574 	u32 hdmi_reg;
575 	int ddc_bus;
576 	uint32_t color_range;
577 	bool color_range_auto;
578 	bool has_hdmi_sink;
579 	bool has_audio;
580 	enum hdmi_force_audio force_audio;
581 	bool rgb_quant_range_selectable;
582 	enum hdmi_picture_aspect aspect_ratio;
583 	void (*write_infoframe)(struct drm_encoder *encoder,
584 				enum hdmi_infoframe_type type,
585 				const void *frame, ssize_t len);
586 	void (*set_infoframes)(struct drm_encoder *encoder,
587 			       bool enable,
588 			       struct drm_display_mode *adjusted_mode);
589 	bool (*infoframe_enabled)(struct drm_encoder *encoder);
590 };
591 
592 struct intel_dp_mst_encoder;
593 #define DP_MAX_DOWNSTREAM_PORTS		0x10
594 
595 struct intel_dp {
596 	uint32_t output_reg;
597 	uint32_t aux_ch_ctl_reg;
598 	uint32_t DP;
599 	bool has_audio;
600 	enum hdmi_force_audio force_audio;
601 	uint32_t color_range;
602 	bool color_range_auto;
603 	uint8_t link_bw;
604 	uint8_t lane_count;
605 	uint8_t dpcd[DP_RECEIVER_CAP_SIZE];
606 	uint8_t psr_dpcd[EDP_PSR_RECEIVER_CAP_SIZE];
607 	uint8_t downstream_ports[DP_MAX_DOWNSTREAM_PORTS];
608 	struct drm_dp_aux aux;
609 	device_t dp_iic_bus;
610 	uint8_t train_set[4];
611 	int panel_power_up_delay;
612 	int panel_power_down_delay;
613 	int panel_power_cycle_delay;
614 	int backlight_on_delay;
615 	int backlight_off_delay;
616 	struct delayed_work panel_vdd_work;
617 	bool want_panel_vdd;
618 	unsigned long last_power_cycle;
619 	unsigned long last_power_on;
620 	unsigned long last_backlight_off;
621 
622 	struct notifier_block edp_notifier;
623 
624 	/*
625 	 * Pipe whose power sequencer is currently locked into
626 	 * this port. Only relevant on VLV/CHV.
627 	 */
628 	enum i915_pipe pps_pipe;
629 	struct edp_power_seq pps_delays;
630 
631 	bool use_tps3;
632 	bool can_mst; /* this port supports mst */
633 	bool is_mst;
634 	int active_mst_links;
635 	/* connector directly attached - won't be use for modeset in mst world */
636 	struct intel_connector *attached_connector;
637 
638 	/* mst connector list */
639 	struct intel_dp_mst_encoder *mst_encoders[I915_MAX_PIPES];
640 	struct drm_dp_mst_topology_mgr mst_mgr;
641 
642 	uint32_t (*get_aux_clock_divider)(struct intel_dp *dp, int index);
643 	/*
644 	 * This function returns the value we have to program the AUX_CTL
645 	 * register with to kick off an AUX transaction.
646 	 */
647 	uint32_t (*get_aux_send_ctl)(struct intel_dp *dp,
648 				     bool has_aux_irq,
649 				     int send_bytes,
650 				     uint32_t aux_clock_divider);
651 };
652 
653 struct intel_digital_port {
654 	struct intel_encoder base;
655 	enum port port;
656 	u32 saved_port_bits;
657 	struct intel_dp dp;
658 	struct intel_hdmi hdmi;
659 	bool (*hpd_pulse)(struct intel_digital_port *, bool);
660 };
661 
662 struct intel_dp_mst_encoder {
663 	struct intel_encoder base;
664 	enum i915_pipe pipe;
665 	struct intel_digital_port *primary;
666 	void *port; /* store this opaque as its illegal to dereference it */
667 };
668 
669 static inline int
670 vlv_dport_to_channel(struct intel_digital_port *dport)
671 {
672 	switch (dport->port) {
673 	case PORT_B:
674 	case PORT_D:
675 		return DPIO_CH0;
676 	case PORT_C:
677 		return DPIO_CH1;
678 	default:
679 		BUG();
680 	}
681 }
682 
683 static inline int
684 vlv_pipe_to_channel(enum i915_pipe pipe)
685 {
686 	switch (pipe) {
687 	case PIPE_A:
688 	case PIPE_C:
689 		return DPIO_CH0;
690 	case PIPE_B:
691 		return DPIO_CH1;
692 	default:
693 		BUG();
694 	}
695 }
696 
697 static inline struct drm_crtc *
698 intel_get_crtc_for_pipe(struct drm_device *dev, int pipe)
699 {
700 	struct drm_i915_private *dev_priv = dev->dev_private;
701 	return dev_priv->pipe_to_crtc_mapping[pipe];
702 }
703 
704 static inline struct drm_crtc *
705 intel_get_crtc_for_plane(struct drm_device *dev, int plane)
706 {
707 	struct drm_i915_private *dev_priv = dev->dev_private;
708 	return dev_priv->plane_to_crtc_mapping[plane];
709 }
710 
711 struct intel_unpin_work {
712 	struct work_struct work;
713 	struct drm_crtc *crtc;
714 	struct drm_i915_gem_object *old_fb_obj;
715 	struct drm_i915_gem_object *pending_flip_obj;
716 	struct drm_pending_vblank_event *event;
717 	atomic_t pending;
718 #define INTEL_FLIP_INACTIVE	0
719 #define INTEL_FLIP_PENDING	1
720 #define INTEL_FLIP_COMPLETE	2
721 	u32 flip_count;
722 	u32 gtt_offset;
723 	struct drm_i915_gem_request *flip_queued_req;
724 	int flip_queued_vblank;
725 	int flip_ready_vblank;
726 	bool enable_stall_check;
727 };
728 
729 struct intel_set_config {
730 	struct drm_encoder **save_connector_encoders;
731 	struct drm_crtc **save_encoder_crtcs;
732 	bool *save_crtc_enabled;
733 
734 	bool fb_changed;
735 	bool mode_changed;
736 };
737 
738 struct intel_load_detect_pipe {
739 	struct drm_framebuffer *release_fb;
740 	bool load_detect_temp;
741 	int dpms_mode;
742 };
743 
744 static inline struct intel_encoder *
745 intel_attached_encoder(struct drm_connector *connector)
746 {
747 	return to_intel_connector(connector)->encoder;
748 }
749 
750 static inline struct intel_digital_port *
751 enc_to_dig_port(struct drm_encoder *encoder)
752 {
753 	return container_of(encoder, struct intel_digital_port, base.base);
754 }
755 
756 static inline struct intel_dp_mst_encoder *
757 enc_to_mst(struct drm_encoder *encoder)
758 {
759 	return container_of(encoder, struct intel_dp_mst_encoder, base.base);
760 }
761 
762 static inline struct intel_dp *enc_to_intel_dp(struct drm_encoder *encoder)
763 {
764 	return &enc_to_dig_port(encoder)->dp;
765 }
766 
767 static inline struct intel_digital_port *
768 dp_to_dig_port(struct intel_dp *intel_dp)
769 {
770 	return container_of(intel_dp, struct intel_digital_port, dp);
771 }
772 
773 static inline struct intel_digital_port *
774 hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
775 {
776 	return container_of(intel_hdmi, struct intel_digital_port, hdmi);
777 }
778 
779 /*
780  * Returns the number of planes for this pipe, ie the number of sprites + 1
781  * (primary plane). This doesn't count the cursor plane then.
782  */
783 static inline unsigned int intel_num_planes(struct intel_crtc *crtc)
784 {
785 	return INTEL_INFO(crtc->base.dev)->num_sprites[crtc->pipe] + 1;
786 }
787 
788 /* intel_fifo_underrun.c */
789 bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
790 					   enum i915_pipe pipe, bool enable);
791 bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
792 					   enum transcoder pch_transcoder,
793 					   bool enable);
794 void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
795 					 enum i915_pipe pipe);
796 void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
797 					 enum transcoder pch_transcoder);
798 void i9xx_check_fifo_underruns(struct drm_i915_private *dev_priv);
799 
800 /* i915_irq.c */
801 void gen5_enable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
802 void gen5_disable_gt_irq(struct drm_i915_private *dev_priv, uint32_t mask);
803 void gen6_enable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
804 void gen6_disable_pm_irq(struct drm_i915_private *dev_priv, uint32_t mask);
805 void gen6_reset_rps_interrupts(struct drm_device *dev);
806 void gen6_enable_rps_interrupts(struct drm_device *dev);
807 void gen6_disable_rps_interrupts(struct drm_device *dev);
808 u32 gen6_sanitize_rps_pm_mask(struct drm_i915_private *dev_priv, u32 mask);
809 void intel_runtime_pm_disable_interrupts(struct drm_i915_private *dev_priv);
810 void intel_runtime_pm_enable_interrupts(struct drm_i915_private *dev_priv);
811 static inline bool intel_irqs_enabled(struct drm_i915_private *dev_priv)
812 {
813 	/*
814 	 * We only use drm_irq_uninstall() at unload and VT switch, so
815 	 * this is the only thing we need to check.
816 	 */
817 	return dev_priv->pm.irqs_enabled;
818 }
819 
820 int intel_get_crtc_scanline(struct intel_crtc *crtc);
821 void gen8_irq_power_well_post_enable(struct drm_i915_private *dev_priv);
822 
823 /* intel_crt.c */
824 void intel_crt_init(struct drm_device *dev);
825 
826 
827 /* intel_ddi.c */
828 void intel_prepare_ddi(struct drm_device *dev);
829 void hsw_fdi_link_train(struct drm_crtc *crtc);
830 void intel_ddi_init(struct drm_device *dev, enum port port);
831 enum port intel_ddi_get_encoder_port(struct intel_encoder *intel_encoder);
832 bool intel_ddi_get_hw_state(struct intel_encoder *encoder, enum i915_pipe *pipe);
833 int intel_ddi_get_cdclk_freq(struct drm_i915_private *dev_priv);
834 void intel_ddi_pll_init(struct drm_device *dev);
835 void intel_ddi_enable_transcoder_func(struct drm_crtc *crtc);
836 void intel_ddi_disable_transcoder_func(struct drm_i915_private *dev_priv,
837 				       enum transcoder cpu_transcoder);
838 void intel_ddi_enable_pipe_clock(struct intel_crtc *intel_crtc);
839 void intel_ddi_disable_pipe_clock(struct intel_crtc *intel_crtc);
840 bool intel_ddi_pll_select(struct intel_crtc *crtc,
841 			  struct intel_crtc_state *crtc_state);
842 void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
843 void intel_ddi_prepare_link_retrain(struct drm_encoder *encoder);
844 bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
845 void intel_ddi_fdi_disable(struct drm_crtc *crtc);
846 void intel_ddi_get_config(struct intel_encoder *encoder,
847 			  struct intel_crtc_state *pipe_config);
848 
849 void intel_ddi_init_dp_buf_reg(struct intel_encoder *encoder);
850 void intel_ddi_clock_get(struct intel_encoder *encoder,
851 			 struct intel_crtc_state *pipe_config);
852 void intel_ddi_set_vc_payload_alloc(struct drm_crtc *crtc, bool state);
853 
854 /* intel_frontbuffer.c */
855 void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
856 			     struct intel_engine_cs *ring);
857 void intel_frontbuffer_flip_prepare(struct drm_device *dev,
858 				    unsigned frontbuffer_bits);
859 void intel_frontbuffer_flip_complete(struct drm_device *dev,
860 				     unsigned frontbuffer_bits);
861 void intel_frontbuffer_flush(struct drm_device *dev,
862 			     unsigned frontbuffer_bits);
863 /**
864  * intel_frontbuffer_flip - synchronous frontbuffer flip
865  * @dev: DRM device
866  * @frontbuffer_bits: frontbuffer plane tracking bits
867  *
868  * This function gets called after scheduling a flip on @obj. This is for
869  * synchronous plane updates which will happen on the next vblank and which will
870  * not get delayed by pending gpu rendering.
871  *
872  * Can be called without any locks held.
873  */
874 static inline
875 void intel_frontbuffer_flip(struct drm_device *dev,
876 			    unsigned frontbuffer_bits)
877 {
878 	intel_frontbuffer_flush(dev, frontbuffer_bits);
879 }
880 
881 int intel_fb_align_height(struct drm_device *dev, int height,
882 			  unsigned int tiling);
883 void intel_fb_obj_flush(struct drm_i915_gem_object *obj, bool retire);
884 
885 
886 /* intel_audio.c */
887 void intel_init_audio(struct drm_device *dev);
888 void intel_audio_codec_enable(struct intel_encoder *encoder);
889 void intel_audio_codec_disable(struct intel_encoder *encoder);
890 void i915_audio_component_init(struct drm_i915_private *dev_priv);
891 void i915_audio_component_cleanup(struct drm_i915_private *dev_priv);
892 
893 /* intel_display.c */
894 extern const struct drm_plane_funcs intel_plane_funcs;
895 bool intel_has_pending_fb_unpin(struct drm_device *dev);
896 int intel_pch_rawclk(struct drm_device *dev);
897 void intel_mark_busy(struct drm_device *dev);
898 void intel_mark_idle(struct drm_device *dev);
899 void intel_crtc_restore_mode(struct drm_crtc *crtc);
900 void intel_crtc_control(struct drm_crtc *crtc, bool enable);
901 void intel_crtc_update_dpms(struct drm_crtc *crtc);
902 void intel_encoder_destroy(struct drm_encoder *encoder);
903 void intel_connector_dpms(struct drm_connector *, int mode);
904 bool intel_connector_get_hw_state(struct intel_connector *connector);
905 void intel_modeset_check_state(struct drm_device *dev);
906 bool ibx_digital_port_connected(struct drm_i915_private *dev_priv,
907 				struct intel_digital_port *port);
908 void intel_connector_attach_encoder(struct intel_connector *connector,
909 				    struct intel_encoder *encoder);
910 struct drm_encoder *intel_best_encoder(struct drm_connector *connector);
911 struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
912 					     struct drm_crtc *crtc);
913 enum i915_pipe intel_get_pipe_from_connector(struct intel_connector *connector);
914 int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
915 				struct drm_file *file_priv);
916 enum transcoder intel_pipe_to_cpu_transcoder(struct drm_i915_private *dev_priv,
917 					     enum i915_pipe pipe);
918 bool intel_pipe_has_type(struct intel_crtc *crtc, enum intel_output_type type);
919 static inline void
920 intel_wait_for_vblank(struct drm_device *dev, int pipe)
921 {
922 	drm_wait_one_vblank(dev, pipe);
923 }
924 int ironlake_get_lanes_required(int target_clock, int link_bw, int bpp);
925 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
926 			 struct intel_digital_port *dport);
927 bool intel_get_load_detect_pipe(struct drm_connector *connector,
928 				struct drm_display_mode *mode,
929 				struct intel_load_detect_pipe *old,
930 				struct drm_modeset_acquire_ctx *ctx);
931 void intel_release_load_detect_pipe(struct drm_connector *connector,
932 				    struct intel_load_detect_pipe *old);
933 int intel_pin_and_fence_fb_obj(struct drm_plane *plane,
934 			       struct drm_framebuffer *fb,
935 			       struct intel_engine_cs *pipelined);
936 void intel_unpin_fb_obj(struct drm_i915_gem_object *obj);
937 struct drm_framebuffer *
938 __intel_framebuffer_create(struct drm_device *dev,
939 			   struct drm_mode_fb_cmd2 *mode_cmd,
940 			   struct drm_i915_gem_object *obj);
941 void intel_prepare_page_flip(struct drm_device *dev, int plane);
942 void intel_finish_page_flip(struct drm_device *dev, int pipe);
943 void intel_finish_page_flip_plane(struct drm_device *dev, int plane);
944 void intel_check_page_flip(struct drm_device *dev, int pipe);
945 int intel_prepare_plane_fb(struct drm_plane *plane,
946 			   struct drm_framebuffer *fb);
947 void intel_cleanup_plane_fb(struct drm_plane *plane,
948 			    struct drm_framebuffer *fb);
949 int intel_plane_atomic_get_property(struct drm_plane *plane,
950 				    const struct drm_plane_state *state,
951 				    struct drm_property *property,
952 				    uint64_t *val);
953 int intel_plane_atomic_set_property(struct drm_plane *plane,
954 				    struct drm_plane_state *state,
955 				    struct drm_property *property,
956 				    uint64_t val);
957 
958 /* shared dpll functions */
959 struct intel_shared_dpll *intel_crtc_to_shared_dpll(struct intel_crtc *crtc);
960 void assert_shared_dpll(struct drm_i915_private *dev_priv,
961 			struct intel_shared_dpll *pll,
962 			bool state);
963 #define assert_shared_dpll_enabled(d, p) assert_shared_dpll(d, p, true)
964 #define assert_shared_dpll_disabled(d, p) assert_shared_dpll(d, p, false)
965 struct intel_shared_dpll *intel_get_shared_dpll(struct intel_crtc *crtc,
966 						struct intel_crtc_state *state);
967 void intel_put_shared_dpll(struct intel_crtc *crtc);
968 
969 void vlv_force_pll_on(struct drm_device *dev, enum i915_pipe pipe,
970 		      const struct dpll *dpll);
971 void vlv_force_pll_off(struct drm_device *dev, enum i915_pipe pipe);
972 
973 /* modesetting asserts */
974 void assert_panel_unlocked(struct drm_i915_private *dev_priv,
975 			   enum i915_pipe pipe);
976 void assert_pll(struct drm_i915_private *dev_priv,
977 		enum i915_pipe pipe, bool state);
978 #define assert_pll_enabled(d, p) assert_pll(d, p, true)
979 #define assert_pll_disabled(d, p) assert_pll(d, p, false)
980 void assert_fdi_rx_pll(struct drm_i915_private *dev_priv,
981 		       enum i915_pipe pipe, bool state);
982 #define assert_fdi_rx_pll_enabled(d, p) assert_fdi_rx_pll(d, p, true)
983 #define assert_fdi_rx_pll_disabled(d, p) assert_fdi_rx_pll(d, p, false)
984 void assert_pipe(struct drm_i915_private *dev_priv, enum i915_pipe pipe, bool state);
985 #define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
986 #define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
987 unsigned long intel_gen4_compute_page_offset(int *x, int *y,
988 					     unsigned int tiling_mode,
989 					     unsigned int bpp,
990 					     unsigned int pitch);
991 void intel_prepare_reset(struct drm_device *dev);
992 void intel_finish_reset(struct drm_device *dev);
993 void hsw_enable_pc8(struct drm_i915_private *dev_priv);
994 void hsw_disable_pc8(struct drm_i915_private *dev_priv);
995 void intel_dp_get_m_n(struct intel_crtc *crtc,
996 		      struct intel_crtc_state *pipe_config);
997 void intel_dp_set_m_n(struct intel_crtc *crtc);
998 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
999 void
1000 ironlake_check_encoder_dotclock(const struct intel_crtc_state *pipe_config,
1001 				int dotclock);
1002 bool intel_crtc_active(struct drm_crtc *crtc);
1003 void hsw_enable_ips(struct intel_crtc *crtc);
1004 void hsw_disable_ips(struct intel_crtc *crtc);
1005 enum intel_display_power_domain
1006 intel_display_port_power_domain(struct intel_encoder *intel_encoder);
1007 void intel_mode_from_pipe_config(struct drm_display_mode *mode,
1008 				 struct intel_crtc_state *pipe_config);
1009 void intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc);
1010 void intel_modeset_preclose(struct drm_device *dev, struct drm_file *file);
1011 
1012 /* intel_dp.c */
1013 void intel_dp_init(struct drm_device *dev, int output_reg, enum port port);
1014 bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
1015 			     struct intel_connector *intel_connector);
1016 void intel_dp_start_link_train(struct intel_dp *intel_dp);
1017 void intel_dp_complete_link_train(struct intel_dp *intel_dp);
1018 void intel_dp_stop_link_train(struct intel_dp *intel_dp);
1019 void intel_dp_sink_dpms(struct intel_dp *intel_dp, int mode);
1020 void intel_dp_encoder_destroy(struct drm_encoder *encoder);
1021 void intel_dp_check_link_status(struct intel_dp *intel_dp);
1022 int intel_dp_sink_crc(struct intel_dp *intel_dp, u8 *crc);
1023 bool intel_dp_compute_config(struct intel_encoder *encoder,
1024 			     struct intel_crtc_state *pipe_config);
1025 bool intel_dp_is_edp(struct drm_device *dev, enum port port);
1026 bool intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port,
1027 				  bool long_hpd);
1028 void intel_edp_backlight_on(struct intel_dp *intel_dp);
1029 void intel_edp_backlight_off(struct intel_dp *intel_dp);
1030 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
1031 void intel_edp_panel_on(struct intel_dp *intel_dp);
1032 void intel_edp_panel_off(struct intel_dp *intel_dp);
1033 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
1034 void intel_dp_mst_suspend(struct drm_device *dev);
1035 void intel_dp_mst_resume(struct drm_device *dev);
1036 int intel_dp_max_link_bw(struct intel_dp *intel_dp);
1037 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
1038 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
1039 uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
1040 void intel_dp_unpack_aux(uint32_t src, uint8_t *dst, int dst_bytes);
1041 int intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
1042 		       struct drm_framebuffer *fb, int crtc_x, int crtc_y,
1043 		       unsigned int crtc_w, unsigned int crtc_h,
1044 		       uint32_t src_x, uint32_t src_y,
1045 		       uint32_t src_w, uint32_t src_h);
1046 int intel_disable_plane(struct drm_plane *plane);
1047 void intel_plane_destroy(struct drm_plane *plane);
1048 void intel_edp_drrs_enable(struct intel_dp *intel_dp);
1049 void intel_edp_drrs_disable(struct intel_dp *intel_dp);
1050 void intel_edp_drrs_invalidate(struct drm_device *dev,
1051 		unsigned frontbuffer_bits);
1052 void intel_edp_drrs_flush(struct drm_device *dev, unsigned frontbuffer_bits);
1053 
1054 /* intel_dp_mst.c */
1055 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
1056 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
1057 /* intel_dsi.c */
1058 void intel_dsi_init(struct drm_device *dev);
1059 
1060 
1061 /* intel_dvo.c */
1062 void intel_dvo_init(struct drm_device *dev);
1063 
1064 
1065 /* legacy fbdev emulation in intel_fbdev.c */
1066 #ifdef CONFIG_DRM_I915_FBDEV
1067 extern int intel_fbdev_init(struct drm_device *dev);
1068 extern void intel_fbdev_initial_config(void *data, async_cookie_t cookie);
1069 extern void intel_fbdev_fini(struct drm_device *dev);
1070 extern void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous);
1071 extern void intel_fbdev_output_poll_changed(struct drm_device *dev);
1072 extern void intel_fbdev_restore_mode(struct drm_device *dev);
1073 #else
1074 static inline int intel_fbdev_init(struct drm_device *dev)
1075 {
1076 	return 0;
1077 }
1078 
1079 static inline void intel_fbdev_initial_config(void *data, async_cookie_t cookie)
1080 {
1081 }
1082 
1083 static inline void intel_fbdev_fini(struct drm_device *dev)
1084 {
1085 }
1086 
1087 static inline void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous)
1088 {
1089 }
1090 
1091 static inline void intel_fbdev_restore_mode(struct drm_device *dev)
1092 {
1093 }
1094 #endif
1095 
1096 /* intel_fbc.c */
1097 bool intel_fbc_enabled(struct drm_device *dev);
1098 void intel_fbc_update(struct drm_device *dev);
1099 void intel_fbc_init(struct drm_i915_private *dev_priv);
1100 void intel_fbc_disable(struct drm_device *dev);
1101 void bdw_fbc_sw_flush(struct drm_device *dev, u32 value);
1102 
1103 /* intel_hdmi.c */
1104 void intel_hdmi_init(struct drm_device *dev, int hdmi_reg, enum port port);
1105 void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
1106 			       struct intel_connector *intel_connector);
1107 struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder);
1108 bool intel_hdmi_compute_config(struct intel_encoder *encoder,
1109 			       struct intel_crtc_state *pipe_config);
1110 
1111 
1112 /* intel_lvds.c */
1113 void intel_lvds_init(struct drm_device *dev);
1114 bool intel_is_dual_link_lvds(struct drm_device *dev);
1115 
1116 
1117 /* intel_modes.c */
1118 int intel_connector_update_modes(struct drm_connector *connector,
1119 				 struct edid *edid);
1120 int intel_ddc_get_modes(struct drm_connector *c, struct i2c_adapter *adapter);
1121 void intel_attach_force_audio_property(struct drm_connector *connector);
1122 void intel_attach_broadcast_rgb_property(struct drm_connector *connector);
1123 
1124 
1125 /* intel_overlay.c */
1126 void intel_setup_overlay(struct drm_device *dev);
1127 void intel_cleanup_overlay(struct drm_device *dev);
1128 int intel_overlay_switch_off(struct intel_overlay *overlay);
1129 int intel_overlay_put_image(struct drm_device *dev, void *data,
1130 			    struct drm_file *file_priv);
1131 int intel_overlay_attrs(struct drm_device *dev, void *data,
1132 			struct drm_file *file_priv);
1133 void intel_overlay_reset(struct drm_i915_private *dev_priv);
1134 
1135 
1136 /* intel_panel.c */
1137 int intel_panel_init(struct intel_panel *panel,
1138 		     struct drm_display_mode *fixed_mode,
1139 		     struct drm_display_mode *downclock_mode);
1140 void intel_panel_fini(struct intel_panel *panel);
1141 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
1142 			    struct drm_display_mode *adjusted_mode);
1143 void intel_pch_panel_fitting(struct intel_crtc *crtc,
1144 			     struct intel_crtc_state *pipe_config,
1145 			     int fitting_mode);
1146 void intel_gmch_panel_fitting(struct intel_crtc *crtc,
1147 			      struct intel_crtc_state *pipe_config,
1148 			      int fitting_mode);
1149 void intel_panel_set_backlight_acpi(struct intel_connector *connector,
1150 				    u32 level, u32 max);
1151 int intel_panel_setup_backlight(struct drm_connector *connector, enum i915_pipe pipe);
1152 void intel_panel_enable_backlight(struct intel_connector *connector);
1153 void intel_panel_disable_backlight(struct intel_connector *connector);
1154 void intel_panel_destroy_backlight(struct drm_connector *connector);
1155 void intel_panel_init_backlight_funcs(struct drm_device *dev);
1156 enum drm_connector_status intel_panel_detect(struct drm_device *dev);
1157 extern struct drm_display_mode *intel_find_panel_downclock(
1158 				struct drm_device *dev,
1159 				struct drm_display_mode *fixed_mode,
1160 				struct drm_connector *connector);
1161 void intel_backlight_register(struct drm_device *dev);
1162 void intel_backlight_unregister(struct drm_device *dev);
1163 
1164 
1165 /* intel_psr.c */
1166 void intel_psr_enable(struct intel_dp *intel_dp);
1167 void intel_psr_disable(struct intel_dp *intel_dp);
1168 void intel_psr_invalidate(struct drm_device *dev,
1169 			      unsigned frontbuffer_bits);
1170 void intel_psr_flush(struct drm_device *dev,
1171 			 unsigned frontbuffer_bits);
1172 void intel_psr_init(struct drm_device *dev);
1173 
1174 /* intel_runtime_pm.c */
1175 int intel_power_domains_init(struct drm_i915_private *);
1176 void intel_power_domains_fini(struct drm_i915_private *);
1177 void intel_power_domains_init_hw(struct drm_i915_private *dev_priv);
1178 void intel_runtime_pm_enable(struct drm_i915_private *dev_priv);
1179 
1180 bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1181 				    enum intel_display_power_domain domain);
1182 bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv,
1183 				      enum intel_display_power_domain domain);
1184 void intel_display_power_get(struct drm_i915_private *dev_priv,
1185 			     enum intel_display_power_domain domain);
1186 void intel_display_power_put(struct drm_i915_private *dev_priv,
1187 			     enum intel_display_power_domain domain);
1188 void intel_aux_display_runtime_get(struct drm_i915_private *dev_priv);
1189 void intel_aux_display_runtime_put(struct drm_i915_private *dev_priv);
1190 void intel_runtime_pm_get(struct drm_i915_private *dev_priv);
1191 void intel_runtime_pm_get_noresume(struct drm_i915_private *dev_priv);
1192 void intel_runtime_pm_put(struct drm_i915_private *dev_priv);
1193 
1194 void intel_display_set_init_power(struct drm_i915_private *dev, bool enable);
1195 
1196 /* intel_pm.c */
1197 void intel_init_clock_gating(struct drm_device *dev);
1198 void intel_suspend_hw(struct drm_device *dev);
1199 int ilk_wm_max_level(const struct drm_device *dev);
1200 void intel_update_watermarks(struct drm_crtc *crtc);
1201 void intel_update_sprite_watermarks(struct drm_plane *plane,
1202 				    struct drm_crtc *crtc,
1203 				    uint32_t sprite_width,
1204 				    uint32_t sprite_height,
1205 				    int pixel_size,
1206 				    bool enabled, bool scaled);
1207 void intel_init_pm(struct drm_device *dev);
1208 void intel_pm_setup(struct drm_device *dev);
1209 void intel_gpu_ips_init(struct drm_i915_private *dev_priv);
1210 void intel_gpu_ips_teardown(void);
1211 void intel_init_gt_powersave(struct drm_device *dev);
1212 void intel_cleanup_gt_powersave(struct drm_device *dev);
1213 void intel_enable_gt_powersave(struct drm_device *dev);
1214 void intel_disable_gt_powersave(struct drm_device *dev);
1215 void intel_suspend_gt_powersave(struct drm_device *dev);
1216 void intel_reset_gt_powersave(struct drm_device *dev);
1217 void ironlake_teardown_rc6(struct drm_device *dev);
1218 void gen6_update_ring_freq(struct drm_device *dev);
1219 void gen6_rps_idle(struct drm_i915_private *dev_priv);
1220 void gen6_rps_boost(struct drm_i915_private *dev_priv);
1221 void ilk_wm_get_hw_state(struct drm_device *dev);
1222 void skl_wm_get_hw_state(struct drm_device *dev);
1223 void skl_ddb_get_hw_state(struct drm_i915_private *dev_priv,
1224 			  struct skl_ddb_allocation *ddb /* out */);
1225 
1226 
1227 /* intel_sdvo.c */
1228 bool intel_sdvo_init(struct drm_device *dev, uint32_t sdvo_reg, bool is_sdvob);
1229 
1230 
1231 /* intel_sprite.c */
1232 int intel_plane_init(struct drm_device *dev, enum i915_pipe pipe, int plane);
1233 void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
1234 			       enum plane plane);
1235 int intel_plane_set_property(struct drm_plane *plane,
1236 			     struct drm_property *prop,
1237 			     uint64_t val);
1238 int intel_plane_restore(struct drm_plane *plane);
1239 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
1240 			      struct drm_file *file_priv);
1241 int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
1242 			      struct drm_file *file_priv);
1243 bool intel_pipe_update_start(struct intel_crtc *crtc,
1244 			     uint32_t *start_vbl_count);
1245 void intel_pipe_update_end(struct intel_crtc *crtc, u32 start_vbl_count);
1246 void intel_post_enable_primary(struct drm_crtc *crtc);
1247 void intel_pre_disable_primary(struct drm_crtc *crtc);
1248 
1249 /* intel_tv.c */
1250 void intel_tv_init(struct drm_device *dev);
1251 
1252 /* intel_atomic.c */
1253 int intel_atomic_check(struct drm_device *dev,
1254 		       struct drm_atomic_state *state);
1255 int intel_atomic_commit(struct drm_device *dev,
1256 			struct drm_atomic_state *state,
1257 			bool async);
1258 int intel_connector_atomic_get_property(struct drm_connector *connector,
1259 					const struct drm_connector_state *state,
1260 					struct drm_property *property,
1261 					uint64_t *val);
1262 struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
1263 void intel_crtc_destroy_state(struct drm_crtc *crtc,
1264 			       struct drm_crtc_state *state);
1265 
1266 /* intel_atomic_plane.c */
1267 struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);
1268 struct drm_plane_state *intel_plane_duplicate_state(struct drm_plane *plane);
1269 void intel_plane_destroy_state(struct drm_plane *plane,
1270 			       struct drm_plane_state *state);
1271 extern const struct drm_plane_helper_funcs intel_plane_helper_funcs;
1272 
1273 #endif /* __INTEL_DRV_H__ */
1274