xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/dc.h (revision ccd51b9f)
1 /*
2  * Copyright 2012-14 Advanced Micro Devices, Inc.
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 shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #ifndef DC_INTERFACE_H_
27 #define DC_INTERFACE_H_
28 
29 #include "dc_types.h"
30 #include "grph_object_defs.h"
31 #include "logger_types.h"
32 #include "gpio_types.h"
33 #include "link_service_types.h"
34 #include "grph_object_ctrl_defs.h"
35 #include <inc/hw/opp.h>
36 
37 #include "inc/hw_sequencer.h"
38 #include "inc/compressor.h"
39 #include "inc/hw/dmcu.h"
40 #include "dml/display_mode_lib.h"
41 
42 #define DC_VER "3.2.35"
43 
44 #define MAX_SURFACES 3
45 #define MAX_PLANES 6
46 #define MAX_STREAMS 6
47 #define MAX_SINKS_PER_LINK 4
48 
49 /*******************************************************************************
50  * Display Core Interfaces
51  ******************************************************************************/
52 struct dc_versions {
53 	const char *dc_ver;
54 	struct dmcu_version dmcu_version;
55 };
56 
57 enum dc_plane_type {
58 	DC_PLANE_TYPE_INVALID,
59 	DC_PLANE_TYPE_DCE_RGB,
60 	DC_PLANE_TYPE_DCE_UNDERLAY,
61 	DC_PLANE_TYPE_DCN_UNIVERSAL,
62 };
63 
64 struct dc_plane_cap {
65 	enum dc_plane_type type;
66 	uint32_t blends_with_above : 1;
67 	uint32_t blends_with_below : 1;
68 	uint32_t per_pixel_alpha : 1;
69 	struct {
70 		uint32_t argb8888 : 1;
71 		uint32_t nv12 : 1;
72 		uint32_t fp16 : 1;
73 		uint32_t p010 : 1;
74 		uint32_t ayuv : 1;
75 	} pixel_format_support;
76 	// max upscaling factor x1000
77 	// upscaling factors are always >= 1
78 	// for example, 1080p -> 8K is 4.0, or 4000 raw value
79 	struct {
80 		uint32_t argb8888;
81 		uint32_t nv12;
82 		uint32_t fp16;
83 	} max_upscale_factor;
84 	// max downscale factor x1000
85 	// downscale factors are always <= 1
86 	// for example, 8K -> 1080p is 0.25, or 250 raw value
87 	struct {
88 		uint32_t argb8888;
89 		uint32_t nv12;
90 		uint32_t fp16;
91 	} max_downscale_factor;
92 };
93 
94 struct dc_caps {
95 	uint32_t max_streams;
96 	uint32_t max_links;
97 	uint32_t max_audios;
98 	uint32_t max_slave_planes;
99 	uint32_t max_planes;
100 	uint32_t max_downscale_ratio;
101 	uint32_t i2c_speed_in_khz;
102 	uint32_t dmdata_alloc_size;
103 	unsigned int max_cursor_size;
104 	unsigned int max_video_width;
105 	int linear_pitch_alignment;
106 	bool dcc_const_color;
107 	bool dynamic_audio;
108 	bool is_apu;
109 	bool dual_link_dvi;
110 	bool post_blend_color_processing;
111 	bool force_dp_tps4_for_cp2520;
112 	bool disable_dp_clk_share;
113 	bool psp_setup_panel_mode;
114 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
115 	bool hw_3d_lut;
116 #endif
117 	struct dc_plane_cap planes[MAX_PLANES];
118 };
119 
120 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
121 struct dc_bug_wa {
122 	bool no_connect_phy_config;
123 	bool dedcn20_305_wa;
124 };
125 #endif
126 
127 struct dc_dcc_surface_param {
128 	struct dc_size surface_size;
129 	enum surface_pixel_format format;
130 	enum swizzle_mode_values swizzle_mode;
131 	enum dc_scan_direction scan;
132 };
133 
134 struct dc_dcc_setting {
135 	unsigned int max_compressed_blk_size;
136 	unsigned int max_uncompressed_blk_size;
137 	bool independent_64b_blks;
138 };
139 
140 struct dc_surface_dcc_cap {
141 	union {
142 		struct {
143 			struct dc_dcc_setting rgb;
144 		} grph;
145 
146 		struct {
147 			struct dc_dcc_setting luma;
148 			struct dc_dcc_setting chroma;
149 		} video;
150 	};
151 
152 	bool capable;
153 	bool const_color_support;
154 };
155 
156 struct dc_static_screen_events {
157 	bool force_trigger;
158 	bool cursor_update;
159 	bool surface_update;
160 	bool overlay_update;
161 };
162 
163 
164 /* Surface update type is used by dc_update_surfaces_and_stream
165  * The update type is determined at the very beginning of the function based
166  * on parameters passed in and decides how much programming (or updating) is
167  * going to be done during the call.
168  *
169  * UPDATE_TYPE_FAST is used for really fast updates that do not require much
170  * logical calculations or hardware register programming. This update MUST be
171  * ISR safe on windows. Currently fast update will only be used to flip surface
172  * address.
173  *
174  * UPDATE_TYPE_MED is used for slower updates which require significant hw
175  * re-programming however do not affect bandwidth consumption or clock
176  * requirements. At present, this is the level at which front end updates
177  * that do not require us to run bw_calcs happen. These are in/out transfer func
178  * updates, viewport offset changes, recout size changes and pixel depth changes.
179  * This update can be done at ISR, but we want to minimize how often this happens.
180  *
181  * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
182  * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
183  * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
184  * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
185  * a full update. This cannot be done at ISR level and should be a rare event.
186  * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
187  * underscan we don't expect to see this call at all.
188  */
189 
190 enum surface_update_type {
191 	UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
192 	UPDATE_TYPE_MED,  /* ISR safe, most of programming needed, no bw/clk change*/
193 	UPDATE_TYPE_FULL, /* may need to shuffle resources */
194 };
195 
196 /* Forward declaration*/
197 struct dc;
198 struct dc_plane_state;
199 struct dc_state;
200 
201 
202 struct dc_cap_funcs {
203 	bool (*get_dcc_compression_cap)(const struct dc *dc,
204 			const struct dc_dcc_surface_param *input,
205 			struct dc_surface_dcc_cap *output);
206 };
207 
208 struct link_training_settings;
209 
210 
211 /* Structure to hold configuration flags set by dm at dc creation. */
212 struct dc_config {
213 	bool gpu_vm_support;
214 	bool disable_disp_pll_sharing;
215 	bool fbc_support;
216 	bool optimize_edp_link_rate;
217 	bool disable_fractional_pwm;
218 	bool allow_seamless_boot_optimization;
219 	bool power_down_display_on_boot;
220 	bool edp_not_connected;
221 	bool forced_clocks;
222 
223 };
224 
225 enum visual_confirm {
226 	VISUAL_CONFIRM_DISABLE = 0,
227 	VISUAL_CONFIRM_SURFACE = 1,
228 	VISUAL_CONFIRM_HDR = 2,
229 };
230 
231 enum dcc_option {
232 	DCC_ENABLE = 0,
233 	DCC_DISABLE = 1,
234 	DCC_HALF_REQ_DISALBE = 2,
235 };
236 
237 enum pipe_split_policy {
238 	MPC_SPLIT_DYNAMIC = 0,
239 	MPC_SPLIT_AVOID = 1,
240 	MPC_SPLIT_AVOID_MULT_DISP = 2,
241 };
242 
243 enum wm_report_mode {
244 	WM_REPORT_DEFAULT = 0,
245 	WM_REPORT_OVERRIDE = 1,
246 };
247 
248 /*
249  * For any clocks that may differ per pipe
250  * only the max is stored in this structure
251  */
252 struct dc_clocks {
253 	int dispclk_khz;
254 	int max_supported_dppclk_khz;
255 	int dppclk_khz;
256 	int dcfclk_khz;
257 	int socclk_khz;
258 	int dcfclk_deep_sleep_khz;
259 	int fclk_khz;
260 	int phyclk_khz;
261 	int dramclk_khz;
262 	bool p_state_change_support;
263 };
264 
265 struct dc_bw_validation_profile {
266 	bool enable;
267 
268 	unsigned long long total_ticks;
269 	unsigned long long voltage_level_ticks;
270 	unsigned long long watermark_ticks;
271 	unsigned long long rq_dlg_ticks;
272 
273 	unsigned long long total_count;
274 	unsigned long long skip_fast_count;
275 	unsigned long long skip_pass_count;
276 	unsigned long long skip_fail_count;
277 };
278 
279 #define BW_VAL_TRACE_SETUP() \
280 		unsigned long long end_tick = 0; \
281 		unsigned long long voltage_level_tick = 0; \
282 		unsigned long long watermark_tick = 0; \
283 		unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
284 				dm_get_timestamp(dc->ctx) : 0
285 
286 #define BW_VAL_TRACE_COUNT() \
287 		if (dc->debug.bw_val_profile.enable) \
288 			dc->debug.bw_val_profile.total_count++
289 
290 #define BW_VAL_TRACE_SKIP(status) \
291 		if (dc->debug.bw_val_profile.enable) { \
292 			if (!voltage_level_tick) \
293 				voltage_level_tick = dm_get_timestamp(dc->ctx); \
294 			dc->debug.bw_val_profile.skip_ ## status ## _count++; \
295 		}
296 
297 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
298 		if (dc->debug.bw_val_profile.enable) \
299 			voltage_level_tick = dm_get_timestamp(dc->ctx)
300 
301 #define BW_VAL_TRACE_END_WATERMARKS() \
302 		if (dc->debug.bw_val_profile.enable) \
303 			watermark_tick = dm_get_timestamp(dc->ctx)
304 
305 #define BW_VAL_TRACE_FINISH() \
306 		if (dc->debug.bw_val_profile.enable) { \
307 			end_tick = dm_get_timestamp(dc->ctx); \
308 			dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
309 			dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
310 			if (watermark_tick) { \
311 				dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
312 				dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
313 			} \
314 		}
315 
316 struct dc_debug_options {
317 	enum visual_confirm visual_confirm;
318 	bool sanity_checks;
319 	bool max_disp_clk;
320 	bool surface_trace;
321 	bool timing_trace;
322 	bool clock_trace;
323 	bool validation_trace;
324 	bool bandwidth_calcs_trace;
325 	int max_downscale_src_width;
326 
327 	/* stutter efficiency related */
328 	bool disable_stutter;
329 	bool use_max_lb;
330 	enum dcc_option disable_dcc;
331 	enum pipe_split_policy pipe_split_policy;
332 	bool force_single_disp_pipe_split;
333 	bool voltage_align_fclk;
334 
335 	bool disable_dfs_bypass;
336 	bool disable_dpp_power_gate;
337 	bool disable_hubp_power_gate;
338 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
339 	bool disable_dsc_power_gate;
340 #endif
341 	bool disable_pplib_wm_range;
342 	enum wm_report_mode pplib_wm_report_mode;
343 	unsigned int min_disp_clk_khz;
344 	int sr_exit_time_dpm0_ns;
345 	int sr_enter_plus_exit_time_dpm0_ns;
346 	int sr_exit_time_ns;
347 	int sr_enter_plus_exit_time_ns;
348 	int urgent_latency_ns;
349 	uint32_t underflow_assert_delay_us;
350 	int percent_of_ideal_drambw;
351 	int dram_clock_change_latency_ns;
352 	bool optimized_watermark;
353 	int always_scale;
354 	bool disable_pplib_clock_request;
355 	bool disable_clock_gate;
356 	bool disable_dmcu;
357 	bool disable_psr;
358 	bool force_abm_enable;
359 	bool disable_stereo_support;
360 	bool vsr_support;
361 	bool performance_trace;
362 	bool az_endpoint_mute_only;
363 	bool always_use_regamma;
364 	bool p010_mpo_support;
365 	bool recovery_enabled;
366 	bool avoid_vbios_exec_table;
367 	bool scl_reset_length10;
368 	bool hdmi20_disable;
369 	bool skip_detection_link_training;
370 	unsigned int force_odm_combine; //bit vector based on otg inst
371 	unsigned int force_fclk_khz;
372 	bool disable_tri_buf;
373 	struct dc_bw_validation_profile bw_val_profile;
374 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
375 	bool disable_fec;
376 #endif
377 	/* This forces a hard min on the DCFCLK requested to SMU/PP
378 	 * watermarks are not affected.
379 	 */
380 	unsigned int force_min_dcfclk_mhz;
381 };
382 
383 struct dc_debug_data {
384 	uint32_t ltFailCount;
385 	uint32_t i2cErrorCount;
386 	uint32_t auxErrorCount;
387 };
388 
389 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
390 struct dc_phy_addr_space_config {
391 	struct {
392 		uint64_t start_addr;
393 		uint64_t end_addr;
394 		uint64_t fb_top;
395 		uint64_t fb_offset;
396 		uint64_t fb_base;
397 		uint64_t agp_top;
398 		uint64_t agp_bot;
399 		uint64_t agp_base;
400 	} system_aperture;
401 
402 	struct {
403 		uint64_t page_table_start_addr;
404 		uint64_t page_table_end_addr;
405 		uint64_t page_table_base_addr;
406 	} gart_config;
407 
408 	bool valid;
409 };
410 
411 struct dc_virtual_addr_space_config {
412 	uint64_t	page_table_base_addr;
413 	uint64_t	page_table_start_addr;
414 	uint64_t	page_table_end_addr;
415 	uint32_t	page_table_block_size_in_bytes;
416 	uint8_t		page_table_depth; // 1 = 1 level, 2 = 2 level, etc.  0 = invalid
417 };
418 #endif
419 
420 struct dc_bounding_box_overrides {
421 	int sr_exit_time_ns;
422 	int sr_enter_plus_exit_time_ns;
423 	int urgent_latency_ns;
424 	int percent_of_ideal_drambw;
425 	int dram_clock_change_latency_ns;
426 	/* This forces a hard min on the DCFCLK we use
427 	 * for DML.  Unlike the debug option for forcing
428 	 * DCFCLK, this override affects watermark calculations
429 	 */
430 	int min_dcfclk_mhz;
431 };
432 
433 struct dc_state;
434 struct resource_pool;
435 struct dce_hwseq;
436 struct gpu_info_soc_bounding_box_v1_0;
437 struct dc {
438 	struct dc_versions versions;
439 	struct dc_caps caps;
440 	struct dc_cap_funcs cap_funcs;
441 	struct dc_config config;
442 	struct dc_debug_options debug;
443 	struct dc_bounding_box_overrides bb_overrides;
444 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
445 	struct dc_bug_wa work_arounds;
446 #endif
447 	struct dc_context *ctx;
448 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
449 	struct dc_phy_addr_space_config vm_pa_config;
450 #endif
451 
452 	uint8_t link_count;
453 	struct dc_link *links[MAX_PIPES * 2];
454 
455 	struct dc_state *current_state;
456 	struct resource_pool *res_pool;
457 
458 	struct clk_mgr *clk_mgr;
459 
460 	/* Display Engine Clock levels */
461 	struct dm_pp_clock_levels sclk_lvls;
462 
463 	/* Inputs into BW and WM calculations. */
464 	struct bw_calcs_dceip *bw_dceip;
465 	struct bw_calcs_vbios *bw_vbios;
466 #ifdef CONFIG_DRM_AMD_DC_DCN1_0
467 	struct dcn_soc_bounding_box *dcn_soc;
468 	struct dcn_ip_params *dcn_ip;
469 	struct display_mode_lib dml;
470 #endif
471 
472 	/* HW functions */
473 	struct hw_sequencer_funcs hwss;
474 	struct dce_hwseq *hwseq;
475 
476 	/* Require to optimize clocks and bandwidth for added/removed planes */
477 	bool optimized_required;
478 
479 	/* Require to maintain clocks and bandwidth for UEFI enabled HW */
480 	bool optimize_seamless_boot;
481 
482 	/* FBC compressor */
483 	struct compressor *fbc_compressor;
484 
485 	struct dc_debug_data debug_data;
486 
487 	const char *build_id;
488 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
489 	struct vm_helper *vm_helper;
490 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
491 #endif
492 };
493 
494 enum frame_buffer_mode {
495 	FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
496 	FRAME_BUFFER_MODE_ZFB_ONLY,
497 	FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
498 } ;
499 
500 struct dchub_init_data {
501 	int64_t zfb_phys_addr_base;
502 	int64_t zfb_mc_base_addr;
503 	uint64_t zfb_size_in_byte;
504 	enum frame_buffer_mode fb_mode;
505 	bool dchub_initialzied;
506 	bool dchub_info_valid;
507 };
508 
509 struct dc_init_data {
510 	struct hw_asic_id asic_id;
511 	void *driver; /* ctx */
512 	struct cgs_device *cgs_device;
513 	struct dc_bounding_box_overrides bb_overrides;
514 
515 	int num_virtual_links;
516 	/*
517 	 * If 'vbios_override' not NULL, it will be called instead
518 	 * of the real VBIOS. Intended use is Diagnostics on FPGA.
519 	 */
520 	struct dc_bios *vbios_override;
521 	enum dce_environment dce_environment;
522 
523 	struct dc_config flags;
524 	uint32_t log_mask;
525 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
526 	/**
527 	 * gpu_info FW provided soc bounding box struct or 0 if not
528 	 * available in FW
529 	 */
530 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
531 #endif
532 };
533 
534 struct dc_callback_init {
535 	uint8_t reserved;
536 };
537 
538 struct dc *dc_create(const struct dc_init_data *init_params);
539 int dc_get_vmid_use_vector(struct dc *dc);
540 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
541 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
542 /* Returns the number of vmids supported */
543 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
544 #endif
545 void dc_init_callbacks(struct dc *dc,
546 		const struct dc_callback_init *init_params);
547 void dc_destroy(struct dc **dc);
548 
549 /*******************************************************************************
550  * Surface Interfaces
551  ******************************************************************************/
552 
553 enum {
554 	TRANSFER_FUNC_POINTS = 1025
555 };
556 
557 struct dc_hdr_static_metadata {
558 	/* display chromaticities and white point in units of 0.00001 */
559 	unsigned int chromaticity_green_x;
560 	unsigned int chromaticity_green_y;
561 	unsigned int chromaticity_blue_x;
562 	unsigned int chromaticity_blue_y;
563 	unsigned int chromaticity_red_x;
564 	unsigned int chromaticity_red_y;
565 	unsigned int chromaticity_white_point_x;
566 	unsigned int chromaticity_white_point_y;
567 
568 	uint32_t min_luminance;
569 	uint32_t max_luminance;
570 	uint32_t maximum_content_light_level;
571 	uint32_t maximum_frame_average_light_level;
572 };
573 
574 enum dc_transfer_func_type {
575 	TF_TYPE_PREDEFINED,
576 	TF_TYPE_DISTRIBUTED_POINTS,
577 	TF_TYPE_BYPASS,
578 	TF_TYPE_HWPWL
579 };
580 
581 struct dc_transfer_func_distributed_points {
582 	struct fixed31_32 red[TRANSFER_FUNC_POINTS];
583 	struct fixed31_32 green[TRANSFER_FUNC_POINTS];
584 	struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
585 
586 	uint16_t end_exponent;
587 	uint16_t x_point_at_y1_red;
588 	uint16_t x_point_at_y1_green;
589 	uint16_t x_point_at_y1_blue;
590 };
591 
592 enum dc_transfer_func_predefined {
593 	TRANSFER_FUNCTION_SRGB,
594 	TRANSFER_FUNCTION_BT709,
595 	TRANSFER_FUNCTION_PQ,
596 	TRANSFER_FUNCTION_LINEAR,
597 	TRANSFER_FUNCTION_UNITY,
598 	TRANSFER_FUNCTION_HLG,
599 	TRANSFER_FUNCTION_HLG12,
600 	TRANSFER_FUNCTION_GAMMA22
601 };
602 
603 struct dc_transfer_func {
604 	struct kref refcount;
605 	enum dc_transfer_func_type type;
606 	enum dc_transfer_func_predefined tf;
607 	/* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
608 	uint32_t sdr_ref_white_level;
609 	struct dc_context *ctx;
610 	union {
611 		struct pwl_params pwl;
612 		struct dc_transfer_func_distributed_points tf_pts;
613 	};
614 };
615 
616 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
617 
618 
619 struct dc_3dlut {
620 	struct kref refcount;
621 	struct tetrahedral_params lut_3d;
622 	uint32_t hdr_multiplier;
623 	bool initialized;
624 	struct dc_context *ctx;
625 };
626 #endif
627 /*
628  * This structure is filled in by dc_surface_get_status and contains
629  * the last requested address and the currently active address so the called
630  * can determine if there are any outstanding flips
631  */
632 struct dc_plane_status {
633 	struct dc_plane_address requested_address;
634 	struct dc_plane_address current_address;
635 	bool is_flip_pending;
636 	bool is_right_eye;
637 };
638 
639 union surface_update_flags {
640 
641 	struct {
642 		uint32_t addr_update:1;
643 		/* Medium updates */
644 		uint32_t dcc_change:1;
645 		uint32_t color_space_change:1;
646 		uint32_t horizontal_mirror_change:1;
647 		uint32_t per_pixel_alpha_change:1;
648 		uint32_t global_alpha_change:1;
649 		uint32_t sdr_white_level:1;
650 		uint32_t rotation_change:1;
651 		uint32_t swizzle_change:1;
652 		uint32_t scaling_change:1;
653 		uint32_t position_change:1;
654 		uint32_t in_transfer_func_change:1;
655 		uint32_t input_csc_change:1;
656 		uint32_t coeff_reduction_change:1;
657 		uint32_t output_tf_change:1;
658 		uint32_t pixel_format_change:1;
659 		uint32_t plane_size_change:1;
660 
661 		/* Full updates */
662 		uint32_t new_plane:1;
663 		uint32_t bpp_change:1;
664 		uint32_t gamma_change:1;
665 		uint32_t bandwidth_change:1;
666 		uint32_t clock_change:1;
667 		uint32_t stereo_format_change:1;
668 		uint32_t full_update:1;
669 	} bits;
670 
671 	uint32_t raw;
672 };
673 
674 struct dc_plane_state {
675 	struct dc_plane_address address;
676 	struct dc_plane_flip_time time;
677 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
678 	bool triplebuffer_flips;
679 #endif
680 	struct scaling_taps scaling_quality;
681 	struct rect src_rect;
682 	struct rect dst_rect;
683 	struct rect clip_rect;
684 
685 	union plane_size plane_size;
686 	union dc_tiling_info tiling_info;
687 
688 	struct dc_plane_dcc_param dcc;
689 
690 	struct dc_gamma *gamma_correction;
691 	struct dc_transfer_func *in_transfer_func;
692 	struct dc_bias_and_scale *bias_and_scale;
693 	struct dc_csc_transform input_csc_color_matrix;
694 	struct fixed31_32 coeff_reduction_factor;
695 	uint32_t sdr_white_level;
696 
697 	// TODO: No longer used, remove
698 	struct dc_hdr_static_metadata hdr_static_ctx;
699 
700 	enum dc_color_space color_space;
701 
702 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
703 	struct dc_3dlut *lut3d_func;
704 	struct dc_transfer_func *in_shaper_func;
705 	struct dc_transfer_func *blend_tf;
706 #endif
707 
708 	enum surface_pixel_format format;
709 	enum dc_rotation_angle rotation;
710 	enum plane_stereo_format stereo_format;
711 
712 	bool is_tiling_rotated;
713 	bool per_pixel_alpha;
714 	bool global_alpha;
715 	int  global_alpha_value;
716 	bool visible;
717 	bool flip_immediate;
718 	bool horizontal_mirror;
719 
720 	union surface_update_flags update_flags;
721 	/* private to DC core */
722 	struct dc_plane_status status;
723 	struct dc_context *ctx;
724 
725 	/* HACK: Workaround for forcing full reprogramming under some conditions */
726 	bool force_full_update;
727 
728 	/* private to dc_surface.c */
729 	enum dc_irq_source irq_source;
730 	struct kref refcount;
731 };
732 
733 struct dc_plane_info {
734 	union plane_size plane_size;
735 	union dc_tiling_info tiling_info;
736 	struct dc_plane_dcc_param dcc;
737 	enum surface_pixel_format format;
738 	enum dc_rotation_angle rotation;
739 	enum plane_stereo_format stereo_format;
740 	enum dc_color_space color_space;
741 	unsigned int sdr_white_level;
742 	bool horizontal_mirror;
743 	bool visible;
744 	bool per_pixel_alpha;
745 	bool global_alpha;
746 	int  global_alpha_value;
747 	bool input_csc_enabled;
748 };
749 
750 struct dc_scaling_info {
751 	struct rect src_rect;
752 	struct rect dst_rect;
753 	struct rect clip_rect;
754 	struct scaling_taps scaling_quality;
755 };
756 
757 struct dc_surface_update {
758 	struct dc_plane_state *surface;
759 
760 	/* isr safe update parameters.  null means no updates */
761 	const struct dc_flip_addrs *flip_addr;
762 	const struct dc_plane_info *plane_info;
763 	const struct dc_scaling_info *scaling_info;
764 
765 	/* following updates require alloc/sleep/spin that is not isr safe,
766 	 * null means no updates
767 	 */
768 	const struct dc_gamma *gamma;
769 	const struct dc_transfer_func *in_transfer_func;
770 
771 	const struct dc_csc_transform *input_csc_color_matrix;
772 	const struct fixed31_32 *coeff_reduction_factor;
773 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
774 	const struct dc_transfer_func *func_shaper;
775 	const struct dc_3dlut *lut3d_func;
776 	const struct dc_transfer_func *blend_tf;
777 #endif
778 };
779 
780 /*
781  * Create a new surface with default parameters;
782  */
783 struct dc_plane_state *dc_create_plane_state(struct dc *dc);
784 const struct dc_plane_status *dc_plane_get_status(
785 		const struct dc_plane_state *plane_state);
786 
787 void dc_plane_state_retain(struct dc_plane_state *plane_state);
788 void dc_plane_state_release(struct dc_plane_state *plane_state);
789 
790 void dc_gamma_retain(struct dc_gamma *dc_gamma);
791 void dc_gamma_release(struct dc_gamma **dc_gamma);
792 struct dc_gamma *dc_create_gamma(void);
793 
794 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
795 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
796 struct dc_transfer_func *dc_create_transfer_func(void);
797 
798 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
799 struct dc_3dlut *dc_create_3dlut_func(void);
800 void dc_3dlut_func_release(struct dc_3dlut *lut);
801 void dc_3dlut_func_retain(struct dc_3dlut *lut);
802 #endif
803 /*
804  * This structure holds a surface address.  There could be multiple addresses
805  * in cases such as Stereo 3D, Planar YUV, etc.  Other per-flip attributes such
806  * as frame durations and DCC format can also be set.
807  */
808 struct dc_flip_addrs {
809 	struct dc_plane_address address;
810 	unsigned int flip_timestamp_in_us;
811 	bool flip_immediate;
812 	/* TODO: add flip duration for FreeSync */
813 };
814 
815 bool dc_post_update_surfaces_to_stream(
816 		struct dc *dc);
817 
818 #include "dc_stream.h"
819 
820 /*
821  * Structure to store surface/stream associations for validation
822  */
823 struct dc_validation_set {
824 	struct dc_stream_state *stream;
825 	struct dc_plane_state *plane_states[MAX_SURFACES];
826 	uint8_t plane_count;
827 };
828 
829 bool dc_validate_seamless_boot_timing(const struct dc *dc,
830 				const struct dc_sink *sink,
831 				struct dc_crtc_timing *crtc_timing);
832 
833 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
834 
835 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
836 
837 /*
838  * fast_validate: we return after determining if we can support the new state,
839  * but before we populate the programming info
840  */
841 enum dc_status dc_validate_global_state(
842 		struct dc *dc,
843 		struct dc_state *new_ctx,
844 		bool fast_validate);
845 
846 
847 void dc_resource_state_construct(
848 		const struct dc *dc,
849 		struct dc_state *dst_ctx);
850 
851 void dc_resource_state_copy_construct(
852 		const struct dc_state *src_ctx,
853 		struct dc_state *dst_ctx);
854 
855 void dc_resource_state_copy_construct_current(
856 		const struct dc *dc,
857 		struct dc_state *dst_ctx);
858 
859 void dc_resource_state_destruct(struct dc_state *context);
860 
861 /*
862  * TODO update to make it about validation sets
863  * Set up streams and links associated to drive sinks
864  * The streams parameter is an absolute set of all active streams.
865  *
866  * After this call:
867  *   Phy, Encoder, Timing Generator are programmed and enabled.
868  *   New streams are enabled with blank stream; no memory read.
869  */
870 bool dc_commit_state(struct dc *dc, struct dc_state *context);
871 
872 
873 struct dc_state *dc_create_state(struct dc *dc);
874 struct dc_state *dc_copy_state(struct dc_state *src_ctx);
875 void dc_retain_state(struct dc_state *context);
876 void dc_release_state(struct dc_state *context);
877 
878 /*******************************************************************************
879  * Link Interfaces
880  ******************************************************************************/
881 
882 struct dpcd_caps {
883 	union dpcd_rev dpcd_rev;
884 	union max_lane_count max_ln_count;
885 	union max_down_spread max_down_spread;
886 	union dprx_feature dprx_feature;
887 
888 	/* valid only for eDP v1.4 or higher*/
889 	uint8_t edp_supported_link_rates_count;
890 	enum dc_link_rate edp_supported_link_rates[8];
891 
892 	/* dongle type (DP converter, CV smart dongle) */
893 	enum display_dongle_type dongle_type;
894 	/* branch device or sink device */
895 	bool is_branch_dev;
896 	/* Dongle's downstream count. */
897 	union sink_count sink_count;
898 	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
899 	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
900 	struct dc_dongle_caps dongle_caps;
901 
902 	uint32_t sink_dev_id;
903 	int8_t sink_dev_id_str[6];
904 	int8_t sink_hw_revision;
905 	int8_t sink_fw_revision[2];
906 
907 	uint32_t branch_dev_id;
908 	int8_t branch_dev_name[6];
909 	int8_t branch_hw_revision;
910 	int8_t branch_fw_revision[2];
911 
912 	bool allow_invalid_MSA_timing_param;
913 	bool panel_mode_edp;
914 	bool dpcd_display_control_capable;
915 	bool ext_receiver_cap_field_present;
916 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
917 	union dpcd_fec_capability fec_cap;
918 	struct dpcd_dsc_capabilities dsc_caps;
919 #endif
920 };
921 
922 #include "dc_link.h"
923 
924 /*******************************************************************************
925  * Sink Interfaces - A sink corresponds to a display output device
926  ******************************************************************************/
927 
928 struct dc_container_id {
929 	// 128bit GUID in binary form
930 	unsigned char  guid[16];
931 	// 8 byte port ID -> ELD.PortID
932 	unsigned int   portId[2];
933 	// 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
934 	unsigned short manufacturerName;
935 	// 2 byte product code -> ELD.ProductCode
936 	unsigned short productCode;
937 };
938 
939 
940 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
941 struct dc_sink_dsc_caps {
942 	// 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
943 	// 'false' if they are sink's DSC caps
944 	bool is_virtual_dpcd_dsc;
945 	struct dsc_dec_dpcd_caps dsc_dec_caps;
946 };
947 #endif
948 
949 /*
950  * The sink structure contains EDID and other display device properties
951  */
952 struct dc_sink {
953 	enum signal_type sink_signal;
954 	struct dc_edid dc_edid; /* raw edid */
955 	struct dc_edid_caps edid_caps; /* parse display caps */
956 	struct dc_container_id *dc_container_id;
957 	uint32_t dongle_max_pix_clk;
958 	void *priv;
959 	struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
960 	bool converter_disable_audio;
961 
962 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
963 	struct dc_sink_dsc_caps sink_dsc_caps;
964 #endif
965 
966 	/* private to DC core */
967 	struct dc_link *link;
968 	struct dc_context *ctx;
969 
970 	uint32_t sink_id;
971 
972 	/* private to dc_sink.c */
973 	// refcount must be the last member in dc_sink, since we want the
974 	// sink structure to be logically cloneable up to (but not including)
975 	// refcount
976 	struct kref refcount;
977 };
978 
979 void dc_sink_retain(struct dc_sink *sink);
980 void dc_sink_release(struct dc_sink *sink);
981 
982 struct dc_sink_init_data {
983 	enum signal_type sink_signal;
984 	struct dc_link *link;
985 	uint32_t dongle_max_pix_clk;
986 	bool converter_disable_audio;
987 };
988 
989 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
990 
991 /* Newer interfaces  */
992 struct dc_cursor {
993 	struct dc_plane_address address;
994 	struct dc_cursor_attributes attributes;
995 };
996 
997 
998 /*******************************************************************************
999  * Interrupt interfaces
1000  ******************************************************************************/
1001 enum dc_irq_source dc_interrupt_to_irq_source(
1002 		struct dc *dc,
1003 		uint32_t src_id,
1004 		uint32_t ext_id);
1005 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
1006 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
1007 enum dc_irq_source dc_get_hpd_irq_source_at_index(
1008 		struct dc *dc, uint32_t link_index);
1009 
1010 /*******************************************************************************
1011  * Power Interfaces
1012  ******************************************************************************/
1013 
1014 void dc_set_power_state(
1015 		struct dc *dc,
1016 		enum dc_acpi_cm_power_state power_state);
1017 void dc_resume(struct dc *dc);
1018 unsigned int dc_get_current_backlight_pwm(struct dc *dc);
1019 unsigned int dc_get_target_backlight_pwm(struct dc *dc);
1020 
1021 bool dc_is_dmcu_initialized(struct dc *dc);
1022 
1023 #if defined(CONFIG_DRM_AMD_DC_DSC_SUPPORT)
1024 /*******************************************************************************
1025  * DSC Interfaces
1026  ******************************************************************************/
1027 #include "dc_dsc.h"
1028 #endif
1029 #endif /* DC_INTERFACE_H_ */
1030