1 /*
2  * Copyright © 2006-2019 Intel Corporation
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  *
23  */
24 
25 #ifndef _INTEL_DISPLAY_H_
26 #define _INTEL_DISPLAY_H_
27 
28 #include <drm/drm_util.h>
29 
30 #include "i915_reg_defs.h"
31 
32 enum drm_scaling_filter;
33 struct dpll;
34 struct drm_connector;
35 struct drm_device;
36 struct drm_display_mode;
37 struct drm_encoder;
38 struct drm_file;
39 struct drm_format_info;
40 struct drm_framebuffer;
41 struct drm_i915_gem_object;
42 struct drm_i915_private;
43 struct drm_mode_fb_cmd2;
44 struct drm_modeset_acquire_ctx;
45 struct drm_plane;
46 struct drm_plane_state;
47 struct i915_address_space;
48 struct i915_ggtt_view;
49 struct intel_atomic_state;
50 struct intel_crtc;
51 struct intel_crtc_state;
52 struct intel_digital_port;
53 struct intel_dp;
54 struct intel_encoder;
55 struct intel_initial_plane_config;
56 struct intel_load_detect_pipe;
57 struct intel_plane;
58 struct intel_plane_state;
59 struct intel_power_domain_mask;
60 struct intel_remapped_info;
61 struct intel_rotation_info;
62 struct pci_dev;
63 
64 enum i915_gpio {
65 	GPIOA,
66 	GPIOB,
67 	GPIOC,
68 	GPIOD,
69 	GPIOE,
70 	GPIOF,
71 	GPIOG,
72 	GPIOH,
73 	__GPIOI_UNUSED,
74 	GPIOJ,
75 	GPIOK,
76 	GPIOL,
77 	GPIOM,
78 	GPION,
79 	GPIOO,
80 };
81 
82 /*
83  * Keep the pipe enum values fixed: the code assumes that PIPE_A=0, the
84  * rest have consecutive values and match the enum values of transcoders
85  * with a 1:1 transcoder -> pipe mapping.
86  */
87 enum pipe {
88 	INVALID_PIPE = -1,
89 
90 	PIPE_A = 0,
91 	PIPE_B,
92 	PIPE_C,
93 	PIPE_D,
94 	_PIPE_EDP,
95 
96 	I915_MAX_PIPES = _PIPE_EDP
97 };
98 
99 #define pipe_name(p) ((p) + 'A')
100 
101 enum transcoder {
102 	INVALID_TRANSCODER = -1,
103 	/*
104 	 * The following transcoders have a 1:1 transcoder -> pipe mapping,
105 	 * keep their values fixed: the code assumes that TRANSCODER_A=0, the
106 	 * rest have consecutive values and match the enum values of the pipes
107 	 * they map to.
108 	 */
109 	TRANSCODER_A = PIPE_A,
110 	TRANSCODER_B = PIPE_B,
111 	TRANSCODER_C = PIPE_C,
112 	TRANSCODER_D = PIPE_D,
113 
114 	/*
115 	 * The following transcoders can map to any pipe, their enum value
116 	 * doesn't need to stay fixed.
117 	 */
118 	TRANSCODER_EDP,
119 	TRANSCODER_DSI_0,
120 	TRANSCODER_DSI_1,
121 	TRANSCODER_DSI_A = TRANSCODER_DSI_0,	/* legacy DSI */
122 	TRANSCODER_DSI_C = TRANSCODER_DSI_1,	/* legacy DSI */
123 
124 	I915_MAX_TRANSCODERS
125 };
126 
127 static inline const char *transcoder_name(enum transcoder transcoder)
128 {
129 	switch (transcoder) {
130 	case TRANSCODER_A:
131 		return "A";
132 	case TRANSCODER_B:
133 		return "B";
134 	case TRANSCODER_C:
135 		return "C";
136 	case TRANSCODER_D:
137 		return "D";
138 	case TRANSCODER_EDP:
139 		return "EDP";
140 	case TRANSCODER_DSI_A:
141 		return "DSI A";
142 	case TRANSCODER_DSI_C:
143 		return "DSI C";
144 	default:
145 		return "<invalid>";
146 	}
147 }
148 
149 static inline bool transcoder_is_dsi(enum transcoder transcoder)
150 {
151 	return transcoder == TRANSCODER_DSI_A || transcoder == TRANSCODER_DSI_C;
152 }
153 
154 /*
155  * Global legacy plane identifier. Valid only for primary/sprite
156  * planes on pre-g4x, and only for primary planes on g4x-bdw.
157  */
158 enum i9xx_plane_id {
159 	PLANE_A,
160 	PLANE_B,
161 	PLANE_C,
162 };
163 
164 #define plane_name(p) ((p) + 'A')
165 #define sprite_name(p, s) ((p) * RUNTIME_INFO(dev_priv)->num_sprites[(p)] + (s) + 'A')
166 
167 /*
168  * Per-pipe plane identifier.
169  * I915_MAX_PLANES in the enum below is the maximum (across all platforms)
170  * number of planes per CRTC.  Not all platforms really have this many planes,
171  * which means some arrays of size I915_MAX_PLANES may have unused entries
172  * between the topmost sprite plane and the cursor plane.
173  *
174  * This is expected to be passed to various register macros
175  * (eg. PLANE_CTL(), PS_PLANE_SEL(), etc.) so adjust with care.
176  */
177 enum plane_id {
178 	PLANE_PRIMARY,
179 	PLANE_SPRITE0,
180 	PLANE_SPRITE1,
181 	PLANE_SPRITE2,
182 	PLANE_SPRITE3,
183 	PLANE_SPRITE4,
184 	PLANE_SPRITE5,
185 	PLANE_CURSOR,
186 
187 	I915_MAX_PLANES,
188 };
189 
190 #define for_each_plane_id_on_crtc(__crtc, __p) \
191 	for ((__p) = PLANE_PRIMARY; (__p) < I915_MAX_PLANES; (__p)++) \
192 		for_each_if((__crtc)->plane_ids_mask & BIT(__p))
193 
194 #define for_each_dbuf_slice(__dev_priv, __slice) \
195 	for ((__slice) = DBUF_S1; (__slice) < I915_MAX_DBUF_SLICES; (__slice)++) \
196 		for_each_if(INTEL_INFO(__dev_priv)->display.dbuf.slice_mask & BIT(__slice))
197 
198 #define for_each_dbuf_slice_in_mask(__dev_priv, __slice, __mask) \
199 	for_each_dbuf_slice((__dev_priv), (__slice)) \
200 		for_each_if((__mask) & BIT(__slice))
201 
202 enum port {
203 	PORT_NONE = -1,
204 
205 	PORT_A = 0,
206 	PORT_B,
207 	PORT_C,
208 	PORT_D,
209 	PORT_E,
210 	PORT_F,
211 	PORT_G,
212 	PORT_H,
213 	PORT_I,
214 
215 	/* tgl+ */
216 	PORT_TC1 = PORT_D,
217 	PORT_TC2,
218 	PORT_TC3,
219 	PORT_TC4,
220 	PORT_TC5,
221 	PORT_TC6,
222 
223 	/* XE_LPD repositions D/E offsets and bitfields */
224 	PORT_D_XELPD = PORT_TC5,
225 	PORT_E_XELPD,
226 
227 	I915_MAX_PORTS
228 };
229 
230 #define port_name(p) ((p) + 'A')
231 
232 /*
233  * Ports identifier referenced from other drivers.
234  * Expected to remain stable over time
235  */
236 static inline const char *port_identifier(enum port port)
237 {
238 	switch (port) {
239 	case PORT_A:
240 		return "Port A";
241 	case PORT_B:
242 		return "Port B";
243 	case PORT_C:
244 		return "Port C";
245 	case PORT_D:
246 		return "Port D";
247 	case PORT_E:
248 		return "Port E";
249 	case PORT_F:
250 		return "Port F";
251 	case PORT_G:
252 		return "Port G";
253 	case PORT_H:
254 		return "Port H";
255 	case PORT_I:
256 		return "Port I";
257 	default:
258 		return "<invalid>";
259 	}
260 }
261 
262 enum tc_port {
263 	TC_PORT_NONE = -1,
264 
265 	TC_PORT_1 = 0,
266 	TC_PORT_2,
267 	TC_PORT_3,
268 	TC_PORT_4,
269 	TC_PORT_5,
270 	TC_PORT_6,
271 
272 	I915_MAX_TC_PORTS
273 };
274 
275 enum tc_port_mode {
276 	TC_PORT_DISCONNECTED,
277 	TC_PORT_TBT_ALT,
278 	TC_PORT_DP_ALT,
279 	TC_PORT_LEGACY,
280 };
281 
282 enum dpio_channel {
283 	DPIO_CH0,
284 	DPIO_CH1
285 };
286 
287 enum dpio_phy {
288 	DPIO_PHY0,
289 	DPIO_PHY1,
290 	DPIO_PHY2,
291 };
292 
293 enum aux_ch {
294 	AUX_CH_A,
295 	AUX_CH_B,
296 	AUX_CH_C,
297 	AUX_CH_D,
298 	AUX_CH_E, /* ICL+ */
299 	AUX_CH_F,
300 	AUX_CH_G,
301 	AUX_CH_H,
302 	AUX_CH_I,
303 
304 	/* tgl+ */
305 	AUX_CH_USBC1 = AUX_CH_D,
306 	AUX_CH_USBC2,
307 	AUX_CH_USBC3,
308 	AUX_CH_USBC4,
309 	AUX_CH_USBC5,
310 	AUX_CH_USBC6,
311 
312 	/* XE_LPD repositions D/E offsets and bitfields */
313 	AUX_CH_D_XELPD = AUX_CH_USBC5,
314 	AUX_CH_E_XELPD,
315 };
316 
317 #define aux_ch_name(a) ((a) + 'A')
318 
319 /* Used by dp and fdi links */
320 struct intel_link_m_n {
321 	u32 tu;
322 	u32 data_m;
323 	u32 data_n;
324 	u32 link_m;
325 	u32 link_n;
326 };
327 
328 enum phy {
329 	PHY_NONE = -1,
330 
331 	PHY_A = 0,
332 	PHY_B,
333 	PHY_C,
334 	PHY_D,
335 	PHY_E,
336 	PHY_F,
337 	PHY_G,
338 	PHY_H,
339 	PHY_I,
340 
341 	I915_MAX_PHYS
342 };
343 
344 #define phy_name(a) ((a) + 'A')
345 
346 enum phy_fia {
347 	FIA1,
348 	FIA2,
349 	FIA3,
350 };
351 
352 enum hpd_pin {
353 	HPD_NONE = 0,
354 	HPD_TV = HPD_NONE,     /* TV is known to be unreliable */
355 	HPD_CRT,
356 	HPD_SDVO_B,
357 	HPD_SDVO_C,
358 	HPD_PORT_A,
359 	HPD_PORT_B,
360 	HPD_PORT_C,
361 	HPD_PORT_D,
362 	HPD_PORT_E,
363 	HPD_PORT_TC1,
364 	HPD_PORT_TC2,
365 	HPD_PORT_TC3,
366 	HPD_PORT_TC4,
367 	HPD_PORT_TC5,
368 	HPD_PORT_TC6,
369 
370 	HPD_NUM_PINS
371 };
372 
373 #define for_each_hpd_pin(__pin) \
374 	for ((__pin) = (HPD_NONE + 1); (__pin) < HPD_NUM_PINS; (__pin)++)
375 
376 #define for_each_pipe(__dev_priv, __p) \
377 	for ((__p) = 0; (__p) < I915_MAX_PIPES; (__p)++) \
378 		for_each_if(INTEL_INFO(__dev_priv)->display.pipe_mask & BIT(__p))
379 
380 #define for_each_pipe_masked(__dev_priv, __p, __mask) \
381 	for_each_pipe(__dev_priv, __p) \
382 		for_each_if((__mask) & BIT(__p))
383 
384 #define for_each_cpu_transcoder(__dev_priv, __t) \
385 	for ((__t) = 0; (__t) < I915_MAX_TRANSCODERS; (__t)++)	\
386 		for_each_if (INTEL_INFO(__dev_priv)->display.cpu_transcoder_mask & BIT(__t))
387 
388 #define for_each_cpu_transcoder_masked(__dev_priv, __t, __mask) \
389 	for_each_cpu_transcoder(__dev_priv, __t) \
390 		for_each_if ((__mask) & BIT(__t))
391 
392 #define for_each_sprite(__dev_priv, __p, __s)				\
393 	for ((__s) = 0;							\
394 	     (__s) < RUNTIME_INFO(__dev_priv)->num_sprites[(__p)];	\
395 	     (__s)++)
396 
397 #define for_each_port(__port) \
398 	for ((__port) = PORT_A; (__port) < I915_MAX_PORTS; (__port)++)
399 
400 #define for_each_port_masked(__port, __ports_mask)			\
401 	for_each_port(__port)						\
402 		for_each_if((__ports_mask) & BIT(__port))
403 
404 #define for_each_phy_masked(__phy, __phys_mask) \
405 	for ((__phy) = PHY_A; (__phy) < I915_MAX_PHYS; (__phy)++)	\
406 		for_each_if((__phys_mask) & BIT(__phy))
407 
408 #define for_each_crtc(dev, crtc) \
409 	list_for_each_entry(crtc, &(dev)->mode_config.crtc_list, head)
410 
411 #define for_each_intel_plane(dev, intel_plane) \
412 	list_for_each_entry(intel_plane,			\
413 			    &(dev)->mode_config.plane_list,	\
414 			    base.head)
415 
416 #define for_each_intel_plane_mask(dev, intel_plane, plane_mask)		\
417 	list_for_each_entry(intel_plane,				\
418 			    &(dev)->mode_config.plane_list,		\
419 			    base.head)					\
420 		for_each_if((plane_mask) &				\
421 			    drm_plane_mask(&intel_plane->base))
422 
423 #define for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane)	\
424 	list_for_each_entry(intel_plane,				\
425 			    &(dev)->mode_config.plane_list,		\
426 			    base.head)					\
427 		for_each_if((intel_plane)->pipe == (intel_crtc)->pipe)
428 
429 #define for_each_intel_crtc(dev, intel_crtc)				\
430 	list_for_each_entry(intel_crtc,					\
431 			    &(dev)->mode_config.crtc_list,		\
432 			    base.head)
433 
434 #define for_each_intel_crtc_in_pipe_mask(dev, intel_crtc, pipe_mask)	\
435 	list_for_each_entry(intel_crtc,					\
436 			    &(dev)->mode_config.crtc_list,		\
437 			    base.head)					\
438 		for_each_if((pipe_mask) & BIT(intel_crtc->pipe))
439 
440 #define for_each_intel_encoder(dev, intel_encoder)		\
441 	list_for_each_entry(intel_encoder,			\
442 			    &(dev)->mode_config.encoder_list,	\
443 			    base.head)
444 
445 #define for_each_intel_encoder_mask(dev, intel_encoder, encoder_mask)	\
446 	list_for_each_entry(intel_encoder,				\
447 			    &(dev)->mode_config.encoder_list,		\
448 			    base.head)					\
449 		for_each_if((encoder_mask) &				\
450 			    drm_encoder_mask(&intel_encoder->base))
451 
452 #define for_each_intel_encoder_mask_with_psr(dev, intel_encoder, encoder_mask) \
453 	list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
454 		for_each_if(((encoder_mask) & drm_encoder_mask(&(intel_encoder)->base)) && \
455 			    intel_encoder_can_psr(intel_encoder))
456 
457 #define for_each_intel_dp(dev, intel_encoder)			\
458 	for_each_intel_encoder(dev, intel_encoder)		\
459 		for_each_if(intel_encoder_is_dp(intel_encoder))
460 
461 #define for_each_intel_encoder_with_psr(dev, intel_encoder) \
462 	for_each_intel_encoder((dev), (intel_encoder)) \
463 		for_each_if(intel_encoder_can_psr(intel_encoder))
464 
465 #define for_each_intel_connector_iter(intel_connector, iter) \
466 	while ((intel_connector = to_intel_connector(drm_connector_list_iter_next(iter))))
467 
468 #define for_each_encoder_on_crtc(dev, __crtc, intel_encoder) \
469 	list_for_each_entry((intel_encoder), &(dev)->mode_config.encoder_list, base.head) \
470 		for_each_if((intel_encoder)->base.crtc == (__crtc))
471 
472 #define for_each_connector_on_encoder(dev, __encoder, intel_connector) \
473 	list_for_each_entry((intel_connector), &(dev)->mode_config.connector_list, base.head) \
474 		for_each_if((intel_connector)->base.encoder == (__encoder))
475 
476 #define for_each_old_intel_plane_in_state(__state, plane, old_plane_state, __i) \
477 	for ((__i) = 0; \
478 	     (__i) < (__state)->base.dev->mode_config.num_total_plane && \
479 		     ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
480 		      (old_plane_state) = to_intel_plane_state((__state)->base.planes[__i].old_state), 1); \
481 	     (__i)++) \
482 		for_each_if(plane)
483 
484 #define for_each_new_intel_plane_in_state(__state, plane, new_plane_state, __i) \
485 	for ((__i) = 0; \
486 	     (__i) < (__state)->base.dev->mode_config.num_total_plane && \
487 		     ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
488 		      (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
489 	     (__i)++) \
490 		for_each_if(plane)
491 
492 #define for_each_new_intel_crtc_in_state(__state, crtc, new_crtc_state, __i) \
493 	for ((__i) = 0; \
494 	     (__i) < (__state)->base.dev->mode_config.num_crtc && \
495 		     ((crtc) = to_intel_crtc((__state)->base.crtcs[__i].ptr), \
496 		      (new_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].new_state), 1); \
497 	     (__i)++) \
498 		for_each_if(crtc)
499 
500 #define for_each_oldnew_intel_plane_in_state(__state, plane, old_plane_state, new_plane_state, __i) \
501 	for ((__i) = 0; \
502 	     (__i) < (__state)->base.dev->mode_config.num_total_plane && \
503 		     ((plane) = to_intel_plane((__state)->base.planes[__i].ptr), \
504 		      (old_plane_state) = to_intel_plane_state((__state)->base.planes[__i].old_state), \
505 		      (new_plane_state) = to_intel_plane_state((__state)->base.planes[__i].new_state), 1); \
506 	     (__i)++) \
507 		for_each_if(plane)
508 
509 #define for_each_oldnew_intel_crtc_in_state(__state, crtc, old_crtc_state, new_crtc_state, __i) \
510 	for ((__i) = 0; \
511 	     (__i) < (__state)->base.dev->mode_config.num_crtc && \
512 		     ((crtc) = to_intel_crtc((__state)->base.crtcs[__i].ptr), \
513 		      (old_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].old_state), \
514 		      (new_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].new_state), 1); \
515 	     (__i)++) \
516 		for_each_if(crtc)
517 
518 #define for_each_oldnew_intel_crtc_in_state_reverse(__state, crtc, old_crtc_state, new_crtc_state, __i) \
519 	for ((__i) = (__state)->base.dev->mode_config.num_crtc - 1; \
520 	     (__i) >= 0  && \
521 	     ((crtc) = to_intel_crtc((__state)->base.crtcs[__i].ptr), \
522 	      (old_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].old_state), \
523 	      (new_crtc_state) = to_intel_crtc_state((__state)->base.crtcs[__i].new_state), 1); \
524 	     (__i)--) \
525 		for_each_if(crtc)
526 
527 #define intel_atomic_crtc_state_for_each_plane_state( \
528 		  plane, plane_state, \
529 		  crtc_state) \
530 	for_each_intel_plane_mask(((crtc_state)->uapi.state->dev), (plane), \
531 				((crtc_state)->uapi.plane_mask)) \
532 		for_each_if ((plane_state = \
533 			      to_intel_plane_state(__drm_atomic_get_current_plane_state((crtc_state)->uapi.state, &plane->base))))
534 
535 #define for_each_new_intel_connector_in_state(__state, connector, new_connector_state, __i) \
536 	for ((__i) = 0; \
537 	     (__i) < (__state)->base.num_connector; \
538 	     (__i)++) \
539 		for_each_if ((__state)->base.connectors[__i].ptr && \
540 			     ((connector) = to_intel_connector((__state)->base.connectors[__i].ptr), \
541 			     (new_connector_state) = to_intel_digital_connector_state((__state)->base.connectors[__i].new_state), 1))
542 
543 int intel_atomic_add_affected_planes(struct intel_atomic_state *state,
544 				     struct intel_crtc *crtc);
545 u8 intel_calc_active_pipes(struct intel_atomic_state *state,
546 			   u8 active_pipes);
547 void intel_link_compute_m_n(u16 bpp, int nlanes,
548 			    int pixel_clock, int link_clock,
549 			    struct intel_link_m_n *m_n,
550 			    bool constant_n, bool fec_enable);
551 u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv,
552 			      u32 pixel_format, u64 modifier);
553 enum drm_mode_status
554 intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv,
555 				const struct drm_display_mode *mode,
556 				bool bigjoiner);
557 enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port);
558 bool is_trans_port_sync_mode(const struct intel_crtc_state *state);
559 bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state);
560 bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state);
561 u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state);
562 struct intel_crtc *intel_master_crtc(const struct intel_crtc_state *crtc_state);
563 bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state);
564 bool intel_pipe_config_compare(const struct intel_crtc_state *current_config,
565 			       const struct intel_crtc_state *pipe_config,
566 			       bool fastset);
567 void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state);
568 
569 void intel_plane_destroy(struct drm_plane *plane);
570 void i9xx_set_pipeconf(const struct intel_crtc_state *crtc_state);
571 void ilk_set_pipeconf(const struct intel_crtc_state *crtc_state);
572 void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state);
573 void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state);
574 void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
575 void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
576 int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
577 int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
578 		      const char *name, u32 reg, int ref_freq);
579 int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
580 			   const char *name, u32 reg);
581 void intel_init_display_hooks(struct drm_i915_private *dev_priv);
582 unsigned int intel_fb_xy_to_linear(int x, int y,
583 				   const struct intel_plane_state *state,
584 				   int plane);
585 void intel_add_fb_offsets(int *x, int *y,
586 			  const struct intel_plane_state *state, int plane);
587 unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info);
588 unsigned int intel_remapped_info_size(const struct intel_remapped_info *rem_info);
589 bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv);
590 int intel_display_suspend(struct drm_device *dev);
591 void intel_encoder_destroy(struct drm_encoder *encoder);
592 struct drm_display_mode *
593 intel_encoder_current_mode(struct intel_encoder *encoder);
594 void intel_encoder_get_config(struct intel_encoder *encoder,
595 			      struct intel_crtc_state *crtc_state);
596 bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy);
597 bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy);
598 bool intel_phy_is_snps(struct drm_i915_private *dev_priv, enum phy phy);
599 enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv,
600 			      enum port port);
601 int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data,
602 				      struct drm_file *file_priv);
603 
604 int ilk_get_lanes_required(int target_clock, int link_bw, int bpp);
605 void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
606 			 struct intel_digital_port *dig_port,
607 			 unsigned int expected_mask);
608 int intel_get_load_detect_pipe(struct drm_connector *connector,
609 			       struct intel_load_detect_pipe *old,
610 			       struct drm_modeset_acquire_ctx *ctx);
611 void intel_release_load_detect_pipe(struct drm_connector *connector,
612 				    struct intel_load_detect_pipe *old,
613 				    struct drm_modeset_acquire_ctx *ctx);
614 struct drm_framebuffer *
615 intel_framebuffer_create(struct drm_i915_gem_object *obj,
616 			 struct drm_mode_fb_cmd2 *mode_cmd);
617 
618 bool intel_fuzzy_clock_check(int clock1, int clock2);
619 
620 void intel_display_prepare_reset(struct drm_i915_private *dev_priv);
621 void intel_display_finish_reset(struct drm_i915_private *dev_priv);
622 void intel_zero_m_n(struct intel_link_m_n *m_n);
623 void intel_set_m_n(struct drm_i915_private *i915,
624 		   const struct intel_link_m_n *m_n,
625 		   i915_reg_t data_m_reg, i915_reg_t data_n_reg,
626 		   i915_reg_t link_m_reg, i915_reg_t link_n_reg);
627 void intel_get_m_n(struct drm_i915_private *i915,
628 		   struct intel_link_m_n *m_n,
629 		   i915_reg_t data_m_reg, i915_reg_t data_n_reg,
630 		   i915_reg_t link_m_reg, i915_reg_t link_n_reg);
631 bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv,
632 				    enum transcoder transcoder);
633 void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc,
634 				    enum transcoder cpu_transcoder,
635 				    const struct intel_link_m_n *m_n);
636 void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc,
637 				    enum transcoder cpu_transcoder,
638 				    const struct intel_link_m_n *m_n);
639 void intel_cpu_transcoder_get_m1_n1(struct intel_crtc *crtc,
640 				    enum transcoder cpu_transcoder,
641 				    struct intel_link_m_n *m_n);
642 void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc,
643 				    enum transcoder cpu_transcoder,
644 				    struct intel_link_m_n *m_n);
645 void i9xx_crtc_clock_get(struct intel_crtc *crtc,
646 			 struct intel_crtc_state *pipe_config);
647 int intel_dotclock_calculate(int link_freq, const struct intel_link_m_n *m_n);
648 int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config);
649 enum intel_display_power_domain intel_port_to_power_domain(struct intel_digital_port *dig_port);
650 enum intel_display_power_domain
651 intel_aux_power_domain(struct intel_digital_port *dig_port);
652 void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc,
653 				  struct intel_crtc_state *crtc_state);
654 void ilk_pfit_disable(const struct intel_crtc_state *old_crtc_state);
655 
656 int bdw_get_pipemisc_bpp(struct intel_crtc *crtc);
657 unsigned int intel_plane_fence_y_offset(const struct intel_plane_state *plane_state);
658 
659 bool intel_plane_uses_fence(const struct intel_plane_state *plane_state);
660 
661 struct intel_encoder *
662 intel_get_crtc_new_encoder(const struct intel_atomic_state *state,
663 			   const struct intel_crtc_state *crtc_state);
664 void intel_plane_disable_noatomic(struct intel_crtc *crtc,
665 				  struct intel_plane *plane);
666 void intel_set_plane_visible(struct intel_crtc_state *crtc_state,
667 			     struct intel_plane_state *plane_state,
668 			     bool visible);
669 void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state);
670 
671 void intel_display_driver_register(struct drm_i915_private *i915);
672 void intel_display_driver_unregister(struct drm_i915_private *i915);
673 
674 void intel_update_watermarks(struct drm_i915_private *i915);
675 
676 /* modesetting */
677 bool intel_modeset_probe_defer(struct pci_dev *pdev);
678 void intel_modeset_init_hw(struct drm_i915_private *i915);
679 int intel_modeset_init_noirq(struct drm_i915_private *i915);
680 int intel_modeset_init_nogem(struct drm_i915_private *i915);
681 int intel_modeset_init(struct drm_i915_private *i915);
682 void intel_modeset_driver_remove(struct drm_i915_private *i915);
683 void intel_modeset_driver_remove_noirq(struct drm_i915_private *i915);
684 void intel_modeset_driver_remove_nogem(struct drm_i915_private *i915);
685 void intel_display_resume(struct drm_device *dev);
686 int intel_modeset_all_pipes(struct intel_atomic_state *state);
687 void intel_modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state,
688 					  struct intel_power_domain_mask *old_domains);
689 void intel_modeset_put_crtc_power_domains(struct intel_crtc *crtc,
690 					  struct intel_power_domain_mask *domains);
691 
692 /* modesetting asserts */
693 void assert_transcoder(struct drm_i915_private *dev_priv,
694 		       enum transcoder cpu_transcoder, bool state);
695 #define assert_transcoder_enabled(d, t) assert_transcoder(d, t, true)
696 #define assert_transcoder_disabled(d, t) assert_transcoder(d, t, false)
697 
698 /* Use I915_STATE_WARN(x) and I915_STATE_WARN_ON() (rather than WARN() and
699  * WARN_ON()) for hw state sanity checks to check for unexpected conditions
700  * which may not necessarily be a user visible problem.  This will either
701  * WARN() or DRM_ERROR() depending on the verbose_checks moduleparam, to
702  * enable distros and users to tailor their preferred amount of i915 abrt
703  * spam.
704  */
705 #define I915_STATE_WARN(condition, format...) ({			\
706 	int __ret_warn_on = !!(condition);				\
707 	if (unlikely(__ret_warn_on))					\
708 		if (!WARN(i915_modparams.verbose_state_checks, format))	\
709 			DRM_ERROR(format);				\
710 	unlikely(__ret_warn_on);					\
711 })
712 
713 #define I915_STATE_WARN_ON(x)						\
714 	I915_STATE_WARN((x), "%s", "WARN_ON(" __stringify(x) ")")
715 
716 bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915);
717 
718 #endif
719