xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/dc.h (revision f8e17c17)
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 "3.2.69"
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 dp_protocol_version {
58 	DP_VERSION_1_4,
59 };
60 
61 enum dc_plane_type {
62 	DC_PLANE_TYPE_INVALID,
63 	DC_PLANE_TYPE_DCE_RGB,
64 	DC_PLANE_TYPE_DCE_UNDERLAY,
65 	DC_PLANE_TYPE_DCN_UNIVERSAL,
66 };
67 
68 struct dc_plane_cap {
69 	enum dc_plane_type type;
70 	uint32_t blends_with_above : 1;
71 	uint32_t blends_with_below : 1;
72 	uint32_t per_pixel_alpha : 1;
73 	struct {
74 		uint32_t argb8888 : 1;
75 		uint32_t nv12 : 1;
76 		uint32_t fp16 : 1;
77 		uint32_t p010 : 1;
78 		uint32_t ayuv : 1;
79 	} pixel_format_support;
80 	// max upscaling factor x1000
81 	// upscaling factors are always >= 1
82 	// for example, 1080p -> 8K is 4.0, or 4000 raw value
83 	struct {
84 		uint32_t argb8888;
85 		uint32_t nv12;
86 		uint32_t fp16;
87 	} max_upscale_factor;
88 	// max downscale factor x1000
89 	// downscale factors are always <= 1
90 	// for example, 8K -> 1080p is 0.25, or 250 raw value
91 	struct {
92 		uint32_t argb8888;
93 		uint32_t nv12;
94 		uint32_t fp16;
95 	} max_downscale_factor;
96 };
97 
98 struct dc_caps {
99 	uint32_t max_streams;
100 	uint32_t max_links;
101 	uint32_t max_audios;
102 	uint32_t max_slave_planes;
103 	uint32_t max_planes;
104 	uint32_t max_downscale_ratio;
105 	uint32_t i2c_speed_in_khz;
106 	uint32_t dmdata_alloc_size;
107 	unsigned int max_cursor_size;
108 	unsigned int max_video_width;
109 	int linear_pitch_alignment;
110 	bool dcc_const_color;
111 	bool dynamic_audio;
112 	bool is_apu;
113 	bool dual_link_dvi;
114 	bool post_blend_color_processing;
115 	bool force_dp_tps4_for_cp2520;
116 	bool disable_dp_clk_share;
117 	bool psp_setup_panel_mode;
118 	bool extended_aux_timeout_support;
119 	bool dmcub_support;
120 	bool hw_3d_lut;
121 	enum dp_protocol_version max_dp_protocol_version;
122 	struct dc_plane_cap planes[MAX_PLANES];
123 };
124 
125 struct dc_bug_wa {
126 	bool no_connect_phy_config;
127 	bool dedcn20_305_wa;
128 	bool skip_clock_update;
129 };
130 
131 struct dc_dcc_surface_param {
132 	struct dc_size surface_size;
133 	enum surface_pixel_format format;
134 	enum swizzle_mode_values swizzle_mode;
135 	enum dc_scan_direction scan;
136 };
137 
138 struct dc_dcc_setting {
139 	unsigned int max_compressed_blk_size;
140 	unsigned int max_uncompressed_blk_size;
141 	bool independent_64b_blks;
142 };
143 
144 struct dc_surface_dcc_cap {
145 	union {
146 		struct {
147 			struct dc_dcc_setting rgb;
148 		} grph;
149 
150 		struct {
151 			struct dc_dcc_setting luma;
152 			struct dc_dcc_setting chroma;
153 		} video;
154 	};
155 
156 	bool capable;
157 	bool const_color_support;
158 };
159 
160 struct dc_static_screen_params {
161 	struct {
162 		bool force_trigger;
163 		bool cursor_update;
164 		bool surface_update;
165 		bool overlay_update;
166 	} triggers;
167 	unsigned int num_frames;
168 };
169 
170 
171 /* Surface update type is used by dc_update_surfaces_and_stream
172  * The update type is determined at the very beginning of the function based
173  * on parameters passed in and decides how much programming (or updating) is
174  * going to be done during the call.
175  *
176  * UPDATE_TYPE_FAST is used for really fast updates that do not require much
177  * logical calculations or hardware register programming. This update MUST be
178  * ISR safe on windows. Currently fast update will only be used to flip surface
179  * address.
180  *
181  * UPDATE_TYPE_MED is used for slower updates which require significant hw
182  * re-programming however do not affect bandwidth consumption or clock
183  * requirements. At present, this is the level at which front end updates
184  * that do not require us to run bw_calcs happen. These are in/out transfer func
185  * updates, viewport offset changes, recout size changes and pixel depth changes.
186  * This update can be done at ISR, but we want to minimize how often this happens.
187  *
188  * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
189  * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
190  * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
191  * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
192  * a full update. This cannot be done at ISR level and should be a rare event.
193  * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
194  * underscan we don't expect to see this call at all.
195  */
196 
197 enum surface_update_type {
198 	UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
199 	UPDATE_TYPE_MED,  /* ISR safe, most of programming needed, no bw/clk change*/
200 	UPDATE_TYPE_FULL, /* may need to shuffle resources */
201 };
202 
203 /* Forward declaration*/
204 struct dc;
205 struct dc_plane_state;
206 struct dc_state;
207 
208 
209 struct dc_cap_funcs {
210 	bool (*get_dcc_compression_cap)(const struct dc *dc,
211 			const struct dc_dcc_surface_param *input,
212 			struct dc_surface_dcc_cap *output);
213 };
214 
215 struct link_training_settings;
216 
217 
218 /* Structure to hold configuration flags set by dm at dc creation. */
219 struct dc_config {
220 	bool gpu_vm_support;
221 	bool disable_disp_pll_sharing;
222 	bool fbc_support;
223 	bool optimize_edp_link_rate;
224 	bool disable_fractional_pwm;
225 	bool allow_seamless_boot_optimization;
226 	bool power_down_display_on_boot;
227 	bool edp_not_connected;
228 	bool force_enum_edp;
229 	bool forced_clocks;
230 	bool disable_extended_timeout_support; // Used to disable extended timeout and lttpr feature as well
231 	bool multi_mon_pp_mclk_switch;
232 };
233 
234 enum visual_confirm {
235 	VISUAL_CONFIRM_DISABLE = 0,
236 	VISUAL_CONFIRM_SURFACE = 1,
237 	VISUAL_CONFIRM_HDR = 2,
238 	VISUAL_CONFIRM_MPCTREE = 4,
239 };
240 
241 enum dcc_option {
242 	DCC_ENABLE = 0,
243 	DCC_DISABLE = 1,
244 	DCC_HALF_REQ_DISALBE = 2,
245 };
246 
247 enum pipe_split_policy {
248 	MPC_SPLIT_DYNAMIC = 0,
249 	MPC_SPLIT_AVOID = 1,
250 	MPC_SPLIT_AVOID_MULT_DISP = 2,
251 };
252 
253 enum wm_report_mode {
254 	WM_REPORT_DEFAULT = 0,
255 	WM_REPORT_OVERRIDE = 1,
256 };
257 enum dtm_pstate{
258 	dtm_level_p0 = 0,/*highest voltage*/
259 	dtm_level_p1,
260 	dtm_level_p2,
261 	dtm_level_p3,
262 	dtm_level_p4,/*when active_display_count = 0*/
263 };
264 
265 enum dcn_pwr_state {
266 	DCN_PWR_STATE_UNKNOWN = -1,
267 	DCN_PWR_STATE_MISSION_MODE = 0,
268 	DCN_PWR_STATE_LOW_POWER = 3,
269 };
270 
271 /*
272  * For any clocks that may differ per pipe
273  * only the max is stored in this structure
274  */
275 struct dc_clocks {
276 	int dispclk_khz;
277 	int dppclk_khz;
278 	int dcfclk_khz;
279 	int socclk_khz;
280 	int dcfclk_deep_sleep_khz;
281 	int fclk_khz;
282 	int phyclk_khz;
283 	int dramclk_khz;
284 	bool p_state_change_support;
285 	enum dcn_pwr_state pwr_state;
286 	/*
287 	 * Elements below are not compared for the purposes of
288 	 * optimization required
289 	 */
290 	bool prev_p_state_change_support;
291 	enum dtm_pstate dtm_level;
292 	int max_supported_dppclk_khz;
293 	int max_supported_dispclk_khz;
294 	int bw_dppclk_khz; /*a copy of dppclk_khz*/
295 	int bw_dispclk_khz;
296 };
297 
298 struct dc_bw_validation_profile {
299 	bool enable;
300 
301 	unsigned long long total_ticks;
302 	unsigned long long voltage_level_ticks;
303 	unsigned long long watermark_ticks;
304 	unsigned long long rq_dlg_ticks;
305 
306 	unsigned long long total_count;
307 	unsigned long long skip_fast_count;
308 	unsigned long long skip_pass_count;
309 	unsigned long long skip_fail_count;
310 };
311 
312 #define BW_VAL_TRACE_SETUP() \
313 		unsigned long long end_tick = 0; \
314 		unsigned long long voltage_level_tick = 0; \
315 		unsigned long long watermark_tick = 0; \
316 		unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
317 				dm_get_timestamp(dc->ctx) : 0
318 
319 #define BW_VAL_TRACE_COUNT() \
320 		if (dc->debug.bw_val_profile.enable) \
321 			dc->debug.bw_val_profile.total_count++
322 
323 #define BW_VAL_TRACE_SKIP(status) \
324 		if (dc->debug.bw_val_profile.enable) { \
325 			if (!voltage_level_tick) \
326 				voltage_level_tick = dm_get_timestamp(dc->ctx); \
327 			dc->debug.bw_val_profile.skip_ ## status ## _count++; \
328 		}
329 
330 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
331 		if (dc->debug.bw_val_profile.enable) \
332 			voltage_level_tick = dm_get_timestamp(dc->ctx)
333 
334 #define BW_VAL_TRACE_END_WATERMARKS() \
335 		if (dc->debug.bw_val_profile.enable) \
336 			watermark_tick = dm_get_timestamp(dc->ctx)
337 
338 #define BW_VAL_TRACE_FINISH() \
339 		if (dc->debug.bw_val_profile.enable) { \
340 			end_tick = dm_get_timestamp(dc->ctx); \
341 			dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
342 			dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
343 			if (watermark_tick) { \
344 				dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
345 				dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
346 			} \
347 		}
348 
349 struct dc_debug_options {
350 	enum visual_confirm visual_confirm;
351 	bool sanity_checks;
352 	bool max_disp_clk;
353 	bool surface_trace;
354 	bool timing_trace;
355 	bool clock_trace;
356 	bool validation_trace;
357 	bool bandwidth_calcs_trace;
358 	int max_downscale_src_width;
359 
360 	/* stutter efficiency related */
361 	bool disable_stutter;
362 	bool use_max_lb;
363 	enum dcc_option disable_dcc;
364 	enum pipe_split_policy pipe_split_policy;
365 	bool force_single_disp_pipe_split;
366 	bool voltage_align_fclk;
367 
368 	bool disable_dfs_bypass;
369 	bool disable_dpp_power_gate;
370 	bool disable_hubp_power_gate;
371 	bool disable_dsc_power_gate;
372 	int dsc_min_slice_height_override;
373 	int dsc_bpp_increment_div;
374 	bool native422_support;
375 	bool disable_pplib_wm_range;
376 	enum wm_report_mode pplib_wm_report_mode;
377 	unsigned int min_disp_clk_khz;
378 	unsigned int min_dpp_clk_khz;
379 	int sr_exit_time_dpm0_ns;
380 	int sr_enter_plus_exit_time_dpm0_ns;
381 	int sr_exit_time_ns;
382 	int sr_enter_plus_exit_time_ns;
383 	int urgent_latency_ns;
384 	uint32_t underflow_assert_delay_us;
385 	int percent_of_ideal_drambw;
386 	int dram_clock_change_latency_ns;
387 	bool optimized_watermark;
388 	int always_scale;
389 	bool disable_pplib_clock_request;
390 	bool disable_clock_gate;
391 	bool disable_dmcu;
392 	bool disable_psr;
393 	bool force_abm_enable;
394 	bool disable_stereo_support;
395 	bool vsr_support;
396 	bool performance_trace;
397 	bool az_endpoint_mute_only;
398 	bool always_use_regamma;
399 	bool p010_mpo_support;
400 	bool recovery_enabled;
401 	bool avoid_vbios_exec_table;
402 	bool scl_reset_length10;
403 	bool hdmi20_disable;
404 	bool skip_detection_link_training;
405 	bool remove_disconnect_edp;
406 	unsigned int force_odm_combine; //bit vector based on otg inst
407 	unsigned int force_fclk_khz;
408 	bool disable_tri_buf;
409 	bool dmub_offload_enabled;
410 	bool dmcub_emulation;
411 	bool dmub_command_table; /* for testing only */
412 	struct dc_bw_validation_profile bw_val_profile;
413 	bool disable_fec;
414 	bool disable_48mhz_pwrdwn;
415 	/* This forces a hard min on the DCFCLK requested to SMU/PP
416 	 * watermarks are not affected.
417 	 */
418 	unsigned int force_min_dcfclk_mhz;
419 	bool disable_timing_sync;
420 	bool cm_in_bypass;
421 	int force_clock_mode;/*every mode change.*/
422 
423 	bool nv12_iflip_vm_wa;
424 	bool disable_dram_clock_change_vactive_support;
425 	bool validate_dml_output;
426 	bool enable_dmcub_surface_flip;
427 	bool usbc_combo_phy_reset_wa;
428 	bool disable_dsc;
429 };
430 
431 struct dc_debug_data {
432 	uint32_t ltFailCount;
433 	uint32_t i2cErrorCount;
434 	uint32_t auxErrorCount;
435 };
436 
437 struct dc_phy_addr_space_config {
438 	struct {
439 		uint64_t start_addr;
440 		uint64_t end_addr;
441 		uint64_t fb_top;
442 		uint64_t fb_offset;
443 		uint64_t fb_base;
444 		uint64_t agp_top;
445 		uint64_t agp_bot;
446 		uint64_t agp_base;
447 	} system_aperture;
448 
449 	struct {
450 		uint64_t page_table_start_addr;
451 		uint64_t page_table_end_addr;
452 		uint64_t page_table_base_addr;
453 	} gart_config;
454 
455 	bool valid;
456 	uint64_t page_table_default_page_addr;
457 };
458 
459 struct dc_virtual_addr_space_config {
460 	uint64_t	page_table_base_addr;
461 	uint64_t	page_table_start_addr;
462 	uint64_t	page_table_end_addr;
463 	uint32_t	page_table_block_size_in_bytes;
464 	uint8_t		page_table_depth; // 1 = 1 level, 2 = 2 level, etc.  0 = invalid
465 };
466 
467 struct dc_bounding_box_overrides {
468 	int sr_exit_time_ns;
469 	int sr_enter_plus_exit_time_ns;
470 	int urgent_latency_ns;
471 	int percent_of_ideal_drambw;
472 	int dram_clock_change_latency_ns;
473 	/* This forces a hard min on the DCFCLK we use
474 	 * for DML.  Unlike the debug option for forcing
475 	 * DCFCLK, this override affects watermark calculations
476 	 */
477 	int min_dcfclk_mhz;
478 };
479 
480 struct dc_state;
481 struct resource_pool;
482 struct dce_hwseq;
483 struct gpu_info_soc_bounding_box_v1_0;
484 struct dc {
485 	struct dc_versions versions;
486 	struct dc_caps caps;
487 	struct dc_cap_funcs cap_funcs;
488 	struct dc_config config;
489 	struct dc_debug_options debug;
490 	struct dc_bounding_box_overrides bb_overrides;
491 	struct dc_bug_wa work_arounds;
492 	struct dc_context *ctx;
493 	struct dc_phy_addr_space_config vm_pa_config;
494 
495 	uint8_t link_count;
496 	struct dc_link *links[MAX_PIPES * 2];
497 
498 	struct dc_state *current_state;
499 	struct resource_pool *res_pool;
500 
501 	struct clk_mgr *clk_mgr;
502 
503 	/* Display Engine Clock levels */
504 	struct dm_pp_clock_levels sclk_lvls;
505 
506 	/* Inputs into BW and WM calculations. */
507 	struct bw_calcs_dceip *bw_dceip;
508 	struct bw_calcs_vbios *bw_vbios;
509 #ifdef CONFIG_DRM_AMD_DC_DCN
510 	struct dcn_soc_bounding_box *dcn_soc;
511 	struct dcn_ip_params *dcn_ip;
512 	struct display_mode_lib dml;
513 #endif
514 
515 	/* HW functions */
516 	struct hw_sequencer_funcs hwss;
517 	struct dce_hwseq *hwseq;
518 
519 	/* Require to optimize clocks and bandwidth for added/removed planes */
520 	bool optimized_required;
521 
522 	/* Require to maintain clocks and bandwidth for UEFI enabled HW */
523 	int optimize_seamless_boot_streams;
524 
525 	/* FBC compressor */
526 	struct compressor *fbc_compressor;
527 
528 	struct dc_debug_data debug_data;
529 
530 	const char *build_id;
531 	struct vm_helper *vm_helper;
532 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
533 };
534 
535 enum frame_buffer_mode {
536 	FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
537 	FRAME_BUFFER_MODE_ZFB_ONLY,
538 	FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
539 } ;
540 
541 struct dchub_init_data {
542 	int64_t zfb_phys_addr_base;
543 	int64_t zfb_mc_base_addr;
544 	uint64_t zfb_size_in_byte;
545 	enum frame_buffer_mode fb_mode;
546 	bool dchub_initialzied;
547 	bool dchub_info_valid;
548 };
549 
550 struct dc_init_data {
551 	struct hw_asic_id asic_id;
552 	void *driver; /* ctx */
553 	struct cgs_device *cgs_device;
554 	struct dc_bounding_box_overrides bb_overrides;
555 
556 	int num_virtual_links;
557 	/*
558 	 * If 'vbios_override' not NULL, it will be called instead
559 	 * of the real VBIOS. Intended use is Diagnostics on FPGA.
560 	 */
561 	struct dc_bios *vbios_override;
562 	enum dce_environment dce_environment;
563 
564 	struct dmub_offload_funcs *dmub_if;
565 	struct dc_reg_helper_state *dmub_offload;
566 
567 	struct dc_config flags;
568 	uint32_t log_mask;
569 	/**
570 	 * gpu_info FW provided soc bounding box struct or 0 if not
571 	 * available in FW
572 	 */
573 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
574 };
575 
576 struct dc_callback_init {
577 #ifdef CONFIG_DRM_AMD_DC_HDCP
578 	struct cp_psp cp_psp;
579 #else
580 	uint8_t reserved;
581 #endif
582 };
583 
584 struct dc *dc_create(const struct dc_init_data *init_params);
585 void dc_hardware_init(struct dc *dc);
586 
587 int dc_get_vmid_use_vector(struct dc *dc);
588 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
589 /* Returns the number of vmids supported */
590 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
591 void dc_init_callbacks(struct dc *dc,
592 		const struct dc_callback_init *init_params);
593 void dc_deinit_callbacks(struct dc *dc);
594 void dc_destroy(struct dc **dc);
595 
596 /*******************************************************************************
597  * Surface Interfaces
598  ******************************************************************************/
599 
600 enum {
601 	TRANSFER_FUNC_POINTS = 1025
602 };
603 
604 struct dc_hdr_static_metadata {
605 	/* display chromaticities and white point in units of 0.00001 */
606 	unsigned int chromaticity_green_x;
607 	unsigned int chromaticity_green_y;
608 	unsigned int chromaticity_blue_x;
609 	unsigned int chromaticity_blue_y;
610 	unsigned int chromaticity_red_x;
611 	unsigned int chromaticity_red_y;
612 	unsigned int chromaticity_white_point_x;
613 	unsigned int chromaticity_white_point_y;
614 
615 	uint32_t min_luminance;
616 	uint32_t max_luminance;
617 	uint32_t maximum_content_light_level;
618 	uint32_t maximum_frame_average_light_level;
619 };
620 
621 enum dc_transfer_func_type {
622 	TF_TYPE_PREDEFINED,
623 	TF_TYPE_DISTRIBUTED_POINTS,
624 	TF_TYPE_BYPASS,
625 	TF_TYPE_HWPWL
626 };
627 
628 struct dc_transfer_func_distributed_points {
629 	struct fixed31_32 red[TRANSFER_FUNC_POINTS];
630 	struct fixed31_32 green[TRANSFER_FUNC_POINTS];
631 	struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
632 
633 	uint16_t end_exponent;
634 	uint16_t x_point_at_y1_red;
635 	uint16_t x_point_at_y1_green;
636 	uint16_t x_point_at_y1_blue;
637 };
638 
639 enum dc_transfer_func_predefined {
640 	TRANSFER_FUNCTION_SRGB,
641 	TRANSFER_FUNCTION_BT709,
642 	TRANSFER_FUNCTION_PQ,
643 	TRANSFER_FUNCTION_LINEAR,
644 	TRANSFER_FUNCTION_UNITY,
645 	TRANSFER_FUNCTION_HLG,
646 	TRANSFER_FUNCTION_HLG12,
647 	TRANSFER_FUNCTION_GAMMA22,
648 	TRANSFER_FUNCTION_GAMMA24,
649 	TRANSFER_FUNCTION_GAMMA26
650 };
651 
652 
653 struct dc_transfer_func {
654 	struct kref refcount;
655 	enum dc_transfer_func_type type;
656 	enum dc_transfer_func_predefined tf;
657 	/* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
658 	uint32_t sdr_ref_white_level;
659 	struct dc_context *ctx;
660 	union {
661 		struct pwl_params pwl;
662 		struct dc_transfer_func_distributed_points tf_pts;
663 	};
664 };
665 
666 
667 union dc_3dlut_state {
668 	struct {
669 		uint32_t initialized:1;		/*if 3dlut is went through color module for initialization */
670 		uint32_t rmu_idx_valid:1;	/*if mux settings are valid*/
671 		uint32_t rmu_mux_num:3;		/*index of mux to use*/
672 		uint32_t mpc_rmu0_mux:4;	/*select mpcc on mux, one of the following : mpcc0, mpcc1, mpcc2, mpcc3*/
673 		uint32_t mpc_rmu1_mux:4;
674 		uint32_t mpc_rmu2_mux:4;
675 		uint32_t reserved:15;
676 	} bits;
677 	uint32_t raw;
678 };
679 
680 
681 struct dc_3dlut {
682 	struct kref refcount;
683 	struct tetrahedral_params lut_3d;
684 	struct fixed31_32 hdr_multiplier;
685 	bool initialized; /*remove after diag fix*/
686 	union dc_3dlut_state state;
687 	struct dc_context *ctx;
688 };
689 /*
690  * This structure is filled in by dc_surface_get_status and contains
691  * the last requested address and the currently active address so the called
692  * can determine if there are any outstanding flips
693  */
694 struct dc_plane_status {
695 	struct dc_plane_address requested_address;
696 	struct dc_plane_address current_address;
697 	bool is_flip_pending;
698 	bool is_right_eye;
699 };
700 
701 union surface_update_flags {
702 
703 	struct {
704 		uint32_t addr_update:1;
705 		/* Medium updates */
706 		uint32_t dcc_change:1;
707 		uint32_t color_space_change:1;
708 		uint32_t horizontal_mirror_change:1;
709 		uint32_t per_pixel_alpha_change:1;
710 		uint32_t global_alpha_change:1;
711 		uint32_t hdr_mult:1;
712 		uint32_t rotation_change:1;
713 		uint32_t swizzle_change:1;
714 		uint32_t scaling_change:1;
715 		uint32_t position_change:1;
716 		uint32_t in_transfer_func_change:1;
717 		uint32_t input_csc_change:1;
718 		uint32_t coeff_reduction_change:1;
719 		uint32_t output_tf_change:1;
720 		uint32_t pixel_format_change:1;
721 		uint32_t plane_size_change:1;
722 
723 		/* Full updates */
724 		uint32_t new_plane:1;
725 		uint32_t bpp_change:1;
726 		uint32_t gamma_change:1;
727 		uint32_t bandwidth_change:1;
728 		uint32_t clock_change:1;
729 		uint32_t stereo_format_change:1;
730 		uint32_t full_update:1;
731 	} bits;
732 
733 	uint32_t raw;
734 };
735 
736 struct dc_plane_state {
737 	struct dc_plane_address address;
738 	struct dc_plane_flip_time time;
739 	bool triplebuffer_flips;
740 	struct scaling_taps scaling_quality;
741 	struct rect src_rect;
742 	struct rect dst_rect;
743 	struct rect clip_rect;
744 
745 	struct plane_size plane_size;
746 	union dc_tiling_info tiling_info;
747 
748 	struct dc_plane_dcc_param dcc;
749 
750 	struct dc_gamma *gamma_correction;
751 	struct dc_transfer_func *in_transfer_func;
752 	struct dc_bias_and_scale *bias_and_scale;
753 	struct dc_csc_transform input_csc_color_matrix;
754 	struct fixed31_32 coeff_reduction_factor;
755 	struct fixed31_32 hdr_mult;
756 
757 	// TODO: No longer used, remove
758 	struct dc_hdr_static_metadata hdr_static_ctx;
759 
760 	enum dc_color_space color_space;
761 
762 	struct dc_3dlut *lut3d_func;
763 	struct dc_transfer_func *in_shaper_func;
764 	struct dc_transfer_func *blend_tf;
765 
766 	enum surface_pixel_format format;
767 	enum dc_rotation_angle rotation;
768 	enum plane_stereo_format stereo_format;
769 
770 	bool is_tiling_rotated;
771 	bool per_pixel_alpha;
772 	bool global_alpha;
773 	int  global_alpha_value;
774 	bool visible;
775 	bool flip_immediate;
776 	bool horizontal_mirror;
777 	int layer_index;
778 
779 	union surface_update_flags update_flags;
780 	/* private to DC core */
781 	struct dc_plane_status status;
782 	struct dc_context *ctx;
783 
784 	/* HACK: Workaround for forcing full reprogramming under some conditions */
785 	bool force_full_update;
786 
787 	/* private to dc_surface.c */
788 	enum dc_irq_source irq_source;
789 	struct kref refcount;
790 };
791 
792 struct dc_plane_info {
793 	struct plane_size plane_size;
794 	union dc_tiling_info tiling_info;
795 	struct dc_plane_dcc_param dcc;
796 	enum surface_pixel_format format;
797 	enum dc_rotation_angle rotation;
798 	enum plane_stereo_format stereo_format;
799 	enum dc_color_space color_space;
800 	bool horizontal_mirror;
801 	bool visible;
802 	bool per_pixel_alpha;
803 	bool global_alpha;
804 	int  global_alpha_value;
805 	bool input_csc_enabled;
806 	int layer_index;
807 };
808 
809 struct dc_scaling_info {
810 	struct rect src_rect;
811 	struct rect dst_rect;
812 	struct rect clip_rect;
813 	struct scaling_taps scaling_quality;
814 };
815 
816 struct dc_surface_update {
817 	struct dc_plane_state *surface;
818 
819 	/* isr safe update parameters.  null means no updates */
820 	const struct dc_flip_addrs *flip_addr;
821 	const struct dc_plane_info *plane_info;
822 	const struct dc_scaling_info *scaling_info;
823 	struct fixed31_32 hdr_mult;
824 	/* following updates require alloc/sleep/spin that is not isr safe,
825 	 * null means no updates
826 	 */
827 	const struct dc_gamma *gamma;
828 	const struct dc_transfer_func *in_transfer_func;
829 
830 	const struct dc_csc_transform *input_csc_color_matrix;
831 	const struct fixed31_32 *coeff_reduction_factor;
832 	const struct dc_transfer_func *func_shaper;
833 	const struct dc_3dlut *lut3d_func;
834 	const struct dc_transfer_func *blend_tf;
835 };
836 
837 /*
838  * Create a new surface with default parameters;
839  */
840 struct dc_plane_state *dc_create_plane_state(struct dc *dc);
841 const struct dc_plane_status *dc_plane_get_status(
842 		const struct dc_plane_state *plane_state);
843 
844 void dc_plane_state_retain(struct dc_plane_state *plane_state);
845 void dc_plane_state_release(struct dc_plane_state *plane_state);
846 
847 void dc_gamma_retain(struct dc_gamma *dc_gamma);
848 void dc_gamma_release(struct dc_gamma **dc_gamma);
849 struct dc_gamma *dc_create_gamma(void);
850 
851 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
852 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
853 struct dc_transfer_func *dc_create_transfer_func(void);
854 
855 struct dc_3dlut *dc_create_3dlut_func(void);
856 void dc_3dlut_func_release(struct dc_3dlut *lut);
857 void dc_3dlut_func_retain(struct dc_3dlut *lut);
858 /*
859  * This structure holds a surface address.  There could be multiple addresses
860  * in cases such as Stereo 3D, Planar YUV, etc.  Other per-flip attributes such
861  * as frame durations and DCC format can also be set.
862  */
863 struct dc_flip_addrs {
864 	struct dc_plane_address address;
865 	unsigned int flip_timestamp_in_us;
866 	bool flip_immediate;
867 	/* TODO: add flip duration for FreeSync */
868 };
869 
870 bool dc_post_update_surfaces_to_stream(
871 		struct dc *dc);
872 
873 #include "dc_stream.h"
874 
875 /*
876  * Structure to store surface/stream associations for validation
877  */
878 struct dc_validation_set {
879 	struct dc_stream_state *stream;
880 	struct dc_plane_state *plane_states[MAX_SURFACES];
881 	uint8_t plane_count;
882 };
883 
884 bool dc_validate_seamless_boot_timing(const struct dc *dc,
885 				const struct dc_sink *sink,
886 				struct dc_crtc_timing *crtc_timing);
887 
888 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
889 
890 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
891 
892 bool dc_set_generic_gpio_for_stereo(bool enable,
893 		struct gpio_service *gpio_service);
894 
895 /*
896  * fast_validate: we return after determining if we can support the new state,
897  * but before we populate the programming info
898  */
899 enum dc_status dc_validate_global_state(
900 		struct dc *dc,
901 		struct dc_state *new_ctx,
902 		bool fast_validate);
903 
904 
905 void dc_resource_state_construct(
906 		const struct dc *dc,
907 		struct dc_state *dst_ctx);
908 
909 void dc_resource_state_copy_construct(
910 		const struct dc_state *src_ctx,
911 		struct dc_state *dst_ctx);
912 
913 void dc_resource_state_copy_construct_current(
914 		const struct dc *dc,
915 		struct dc_state *dst_ctx);
916 
917 void dc_resource_state_destruct(struct dc_state *context);
918 
919 bool dc_resource_is_dsc_encoding_supported(const struct dc *dc);
920 
921 /*
922  * TODO update to make it about validation sets
923  * Set up streams and links associated to drive sinks
924  * The streams parameter is an absolute set of all active streams.
925  *
926  * After this call:
927  *   Phy, Encoder, Timing Generator are programmed and enabled.
928  *   New streams are enabled with blank stream; no memory read.
929  */
930 bool dc_commit_state(struct dc *dc, struct dc_state *context);
931 
932 
933 struct dc_state *dc_create_state(struct dc *dc);
934 struct dc_state *dc_copy_state(struct dc_state *src_ctx);
935 void dc_retain_state(struct dc_state *context);
936 void dc_release_state(struct dc_state *context);
937 
938 /*******************************************************************************
939  * Link Interfaces
940  ******************************************************************************/
941 
942 struct dpcd_caps {
943 	union dpcd_rev dpcd_rev;
944 	union max_lane_count max_ln_count;
945 	union max_down_spread max_down_spread;
946 	union dprx_feature dprx_feature;
947 
948 	/* valid only for eDP v1.4 or higher*/
949 	uint8_t edp_supported_link_rates_count;
950 	enum dc_link_rate edp_supported_link_rates[8];
951 
952 	/* dongle type (DP converter, CV smart dongle) */
953 	enum display_dongle_type dongle_type;
954 	/* branch device or sink device */
955 	bool is_branch_dev;
956 	/* Dongle's downstream count. */
957 	union sink_count sink_count;
958 	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
959 	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
960 	struct dc_dongle_caps dongle_caps;
961 
962 	uint32_t sink_dev_id;
963 	int8_t sink_dev_id_str[6];
964 	int8_t sink_hw_revision;
965 	int8_t sink_fw_revision[2];
966 
967 	uint32_t branch_dev_id;
968 	int8_t branch_dev_name[6];
969 	int8_t branch_hw_revision;
970 	int8_t branch_fw_revision[2];
971 
972 	bool allow_invalid_MSA_timing_param;
973 	bool panel_mode_edp;
974 	bool dpcd_display_control_capable;
975 	bool ext_receiver_cap_field_present;
976 	union dpcd_fec_capability fec_cap;
977 	struct dpcd_dsc_capabilities dsc_caps;
978 	struct dc_lttpr_caps lttpr_caps;
979 
980 };
981 
982 #include "dc_link.h"
983 
984 /*******************************************************************************
985  * Sink Interfaces - A sink corresponds to a display output device
986  ******************************************************************************/
987 
988 struct dc_container_id {
989 	// 128bit GUID in binary form
990 	unsigned char  guid[16];
991 	// 8 byte port ID -> ELD.PortID
992 	unsigned int   portId[2];
993 	// 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
994 	unsigned short manufacturerName;
995 	// 2 byte product code -> ELD.ProductCode
996 	unsigned short productCode;
997 };
998 
999 
1000 struct dc_sink_dsc_caps {
1001 	// 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
1002 	// 'false' if they are sink's DSC caps
1003 	bool is_virtual_dpcd_dsc;
1004 	struct dsc_dec_dpcd_caps dsc_dec_caps;
1005 };
1006 
1007 /*
1008  * The sink structure contains EDID and other display device properties
1009  */
1010 struct dc_sink {
1011 	enum signal_type sink_signal;
1012 	struct dc_edid dc_edid; /* raw edid */
1013 	struct dc_edid_caps edid_caps; /* parse display caps */
1014 	struct dc_container_id *dc_container_id;
1015 	uint32_t dongle_max_pix_clk;
1016 	void *priv;
1017 	struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
1018 	bool converter_disable_audio;
1019 
1020 	struct dc_sink_dsc_caps sink_dsc_caps;
1021 
1022 	/* private to DC core */
1023 	struct dc_link *link;
1024 	struct dc_context *ctx;
1025 
1026 	uint32_t sink_id;
1027 
1028 	/* private to dc_sink.c */
1029 	// refcount must be the last member in dc_sink, since we want the
1030 	// sink structure to be logically cloneable up to (but not including)
1031 	// refcount
1032 	struct kref refcount;
1033 };
1034 
1035 void dc_sink_retain(struct dc_sink *sink);
1036 void dc_sink_release(struct dc_sink *sink);
1037 
1038 struct dc_sink_init_data {
1039 	enum signal_type sink_signal;
1040 	struct dc_link *link;
1041 	uint32_t dongle_max_pix_clk;
1042 	bool converter_disable_audio;
1043 };
1044 
1045 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
1046 
1047 /* Newer interfaces  */
1048 struct dc_cursor {
1049 	struct dc_plane_address address;
1050 	struct dc_cursor_attributes attributes;
1051 };
1052 
1053 
1054 /*******************************************************************************
1055  * Interrupt interfaces
1056  ******************************************************************************/
1057 enum dc_irq_source dc_interrupt_to_irq_source(
1058 		struct dc *dc,
1059 		uint32_t src_id,
1060 		uint32_t ext_id);
1061 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
1062 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
1063 enum dc_irq_source dc_get_hpd_irq_source_at_index(
1064 		struct dc *dc, uint32_t link_index);
1065 
1066 /*******************************************************************************
1067  * Power Interfaces
1068  ******************************************************************************/
1069 
1070 void dc_set_power_state(
1071 		struct dc *dc,
1072 		enum dc_acpi_cm_power_state power_state);
1073 void dc_resume(struct dc *dc);
1074 unsigned int dc_get_current_backlight_pwm(struct dc *dc);
1075 unsigned int dc_get_target_backlight_pwm(struct dc *dc);
1076 
1077 bool dc_is_dmcu_initialized(struct dc *dc);
1078 bool dc_is_hw_initialized(struct dc *dc);
1079 
1080 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
1081 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
1082 /*******************************************************************************
1083  * DSC Interfaces
1084  ******************************************************************************/
1085 #include "dc_dsc.h"
1086 #endif /* DC_INTERFACE_H_ */
1087