xref: /openbmc/linux/drivers/gpu/drm/amd/display/dc/dc.h (revision 7b73a9c8)
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 "3.2.56"
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 	bool extended_aux_timeout_support;
115 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
116 	bool hw_3d_lut;
117 #endif
118 	struct dc_plane_cap planes[MAX_PLANES];
119 };
120 
121 struct dc_bug_wa {
122 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
123 	bool no_connect_phy_config;
124 	bool dedcn20_305_wa;
125 #endif
126 	bool skip_clock_update;
127 };
128 
129 struct dc_dcc_surface_param {
130 	struct dc_size surface_size;
131 	enum surface_pixel_format format;
132 	enum swizzle_mode_values swizzle_mode;
133 	enum dc_scan_direction scan;
134 };
135 
136 struct dc_dcc_setting {
137 	unsigned int max_compressed_blk_size;
138 	unsigned int max_uncompressed_blk_size;
139 	bool independent_64b_blks;
140 };
141 
142 struct dc_surface_dcc_cap {
143 	union {
144 		struct {
145 			struct dc_dcc_setting rgb;
146 		} grph;
147 
148 		struct {
149 			struct dc_dcc_setting luma;
150 			struct dc_dcc_setting chroma;
151 		} video;
152 	};
153 
154 	bool capable;
155 	bool const_color_support;
156 };
157 
158 struct dc_static_screen_events {
159 	bool force_trigger;
160 	bool cursor_update;
161 	bool surface_update;
162 	bool overlay_update;
163 };
164 
165 
166 /* Surface update type is used by dc_update_surfaces_and_stream
167  * The update type is determined at the very beginning of the function based
168  * on parameters passed in and decides how much programming (or updating) is
169  * going to be done during the call.
170  *
171  * UPDATE_TYPE_FAST is used for really fast updates that do not require much
172  * logical calculations or hardware register programming. This update MUST be
173  * ISR safe on windows. Currently fast update will only be used to flip surface
174  * address.
175  *
176  * UPDATE_TYPE_MED is used for slower updates which require significant hw
177  * re-programming however do not affect bandwidth consumption or clock
178  * requirements. At present, this is the level at which front end updates
179  * that do not require us to run bw_calcs happen. These are in/out transfer func
180  * updates, viewport offset changes, recout size changes and pixel depth changes.
181  * This update can be done at ISR, but we want to minimize how often this happens.
182  *
183  * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
184  * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
185  * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
186  * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
187  * a full update. This cannot be done at ISR level and should be a rare event.
188  * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
189  * underscan we don't expect to see this call at all.
190  */
191 
192 enum surface_update_type {
193 	UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
194 	UPDATE_TYPE_MED,  /* ISR safe, most of programming needed, no bw/clk change*/
195 	UPDATE_TYPE_FULL, /* may need to shuffle resources */
196 };
197 
198 /* Forward declaration*/
199 struct dc;
200 struct dc_plane_state;
201 struct dc_state;
202 
203 
204 struct dc_cap_funcs {
205 	bool (*get_dcc_compression_cap)(const struct dc *dc,
206 			const struct dc_dcc_surface_param *input,
207 			struct dc_surface_dcc_cap *output);
208 };
209 
210 struct link_training_settings;
211 
212 
213 /* Structure to hold configuration flags set by dm at dc creation. */
214 struct dc_config {
215 	bool gpu_vm_support;
216 	bool disable_disp_pll_sharing;
217 	bool fbc_support;
218 	bool optimize_edp_link_rate;
219 	bool disable_fractional_pwm;
220 	bool allow_seamless_boot_optimization;
221 	bool power_down_display_on_boot;
222 	bool edp_not_connected;
223 	bool force_enum_edp;
224 	bool forced_clocks;
225 	bool disable_extended_timeout_support; // Used to disable extended timeout and lttpr feature as well
226 	bool multi_mon_pp_mclk_switch;
227 };
228 
229 enum visual_confirm {
230 	VISUAL_CONFIRM_DISABLE = 0,
231 	VISUAL_CONFIRM_SURFACE = 1,
232 	VISUAL_CONFIRM_HDR = 2,
233 	VISUAL_CONFIRM_MPCTREE = 4,
234 };
235 
236 enum dcc_option {
237 	DCC_ENABLE = 0,
238 	DCC_DISABLE = 1,
239 	DCC_HALF_REQ_DISALBE = 2,
240 };
241 
242 enum pipe_split_policy {
243 	MPC_SPLIT_DYNAMIC = 0,
244 	MPC_SPLIT_AVOID = 1,
245 	MPC_SPLIT_AVOID_MULT_DISP = 2,
246 };
247 
248 enum wm_report_mode {
249 	WM_REPORT_DEFAULT = 0,
250 	WM_REPORT_OVERRIDE = 1,
251 };
252 enum dtm_pstate{
253 	dtm_level_p0 = 0,/*highest voltage*/
254 	dtm_level_p1,
255 	dtm_level_p2,
256 	dtm_level_p3,
257 	dtm_level_p4,/*when active_display_count = 0*/
258 };
259 
260 enum dcn_pwr_state {
261 	DCN_PWR_STATE_UNKNOWN = -1,
262 	DCN_PWR_STATE_MISSION_MODE = 0,
263 	DCN_PWR_STATE_LOW_POWER = 3,
264 };
265 
266 /*
267  * For any clocks that may differ per pipe
268  * only the max is stored in this structure
269  */
270 struct dc_clocks {
271 	int dispclk_khz;
272 	int dppclk_khz;
273 	int dcfclk_khz;
274 	int socclk_khz;
275 	int dcfclk_deep_sleep_khz;
276 	int fclk_khz;
277 	int phyclk_khz;
278 	int dramclk_khz;
279 	bool p_state_change_support;
280 	enum dcn_pwr_state pwr_state;
281 	/*
282 	 * Elements below are not compared for the purposes of
283 	 * optimization required
284 	 */
285 	bool prev_p_state_change_support;
286 	enum dtm_pstate dtm_level;
287 	int max_supported_dppclk_khz;
288 	int max_supported_dispclk_khz;
289 	int bw_dppclk_khz; /*a copy of dppclk_khz*/
290 	int bw_dispclk_khz;
291 };
292 
293 struct dc_bw_validation_profile {
294 	bool enable;
295 
296 	unsigned long long total_ticks;
297 	unsigned long long voltage_level_ticks;
298 	unsigned long long watermark_ticks;
299 	unsigned long long rq_dlg_ticks;
300 
301 	unsigned long long total_count;
302 	unsigned long long skip_fast_count;
303 	unsigned long long skip_pass_count;
304 	unsigned long long skip_fail_count;
305 };
306 
307 #define BW_VAL_TRACE_SETUP() \
308 		unsigned long long end_tick = 0; \
309 		unsigned long long voltage_level_tick = 0; \
310 		unsigned long long watermark_tick = 0; \
311 		unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
312 				dm_get_timestamp(dc->ctx) : 0
313 
314 #define BW_VAL_TRACE_COUNT() \
315 		if (dc->debug.bw_val_profile.enable) \
316 			dc->debug.bw_val_profile.total_count++
317 
318 #define BW_VAL_TRACE_SKIP(status) \
319 		if (dc->debug.bw_val_profile.enable) { \
320 			if (!voltage_level_tick) \
321 				voltage_level_tick = dm_get_timestamp(dc->ctx); \
322 			dc->debug.bw_val_profile.skip_ ## status ## _count++; \
323 		}
324 
325 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
326 		if (dc->debug.bw_val_profile.enable) \
327 			voltage_level_tick = dm_get_timestamp(dc->ctx)
328 
329 #define BW_VAL_TRACE_END_WATERMARKS() \
330 		if (dc->debug.bw_val_profile.enable) \
331 			watermark_tick = dm_get_timestamp(dc->ctx)
332 
333 #define BW_VAL_TRACE_FINISH() \
334 		if (dc->debug.bw_val_profile.enable) { \
335 			end_tick = dm_get_timestamp(dc->ctx); \
336 			dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
337 			dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
338 			if (watermark_tick) { \
339 				dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
340 				dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
341 			} \
342 		}
343 
344 struct dc_debug_options {
345 	enum visual_confirm visual_confirm;
346 	bool sanity_checks;
347 	bool max_disp_clk;
348 	bool surface_trace;
349 	bool timing_trace;
350 	bool clock_trace;
351 	bool validation_trace;
352 	bool bandwidth_calcs_trace;
353 	int max_downscale_src_width;
354 
355 	/* stutter efficiency related */
356 	bool disable_stutter;
357 	bool use_max_lb;
358 	enum dcc_option disable_dcc;
359 	enum pipe_split_policy pipe_split_policy;
360 	bool force_single_disp_pipe_split;
361 	bool voltage_align_fclk;
362 
363 	bool disable_dfs_bypass;
364 	bool disable_dpp_power_gate;
365 	bool disable_hubp_power_gate;
366 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
367 	bool disable_dsc_power_gate;
368 	int dsc_min_slice_height_override;
369 #endif
370 	bool disable_pplib_wm_range;
371 	enum wm_report_mode pplib_wm_report_mode;
372 	unsigned int min_disp_clk_khz;
373 	unsigned int min_dpp_clk_khz;
374 	int sr_exit_time_dpm0_ns;
375 	int sr_enter_plus_exit_time_dpm0_ns;
376 	int sr_exit_time_ns;
377 	int sr_enter_plus_exit_time_ns;
378 	int urgent_latency_ns;
379 	uint32_t underflow_assert_delay_us;
380 	int percent_of_ideal_drambw;
381 	int dram_clock_change_latency_ns;
382 	bool optimized_watermark;
383 	int always_scale;
384 	bool disable_pplib_clock_request;
385 	bool disable_clock_gate;
386 	bool disable_dmcu;
387 	bool disable_psr;
388 	bool force_abm_enable;
389 	bool disable_stereo_support;
390 	bool vsr_support;
391 	bool performance_trace;
392 	bool az_endpoint_mute_only;
393 	bool always_use_regamma;
394 	bool p010_mpo_support;
395 	bool recovery_enabled;
396 	bool avoid_vbios_exec_table;
397 	bool scl_reset_length10;
398 	bool hdmi20_disable;
399 	bool skip_detection_link_training;
400 	bool remove_disconnect_edp;
401 	unsigned int force_odm_combine; //bit vector based on otg inst
402 	unsigned int force_fclk_khz;
403 	bool disable_tri_buf;
404 	struct dc_bw_validation_profile bw_val_profile;
405 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
406 	bool disable_fec;
407 #endif
408 #ifdef CONFIG_DRM_AMD_DC_DCN2_1
409 	bool disable_48mhz_pwrdwn;
410 #endif
411 	/* This forces a hard min on the DCFCLK requested to SMU/PP
412 	 * watermarks are not affected.
413 	 */
414 	unsigned int force_min_dcfclk_mhz;
415 	bool disable_timing_sync;
416 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
417 	bool cm_in_bypass;
418 #endif
419 	int force_clock_mode;/*every mode change.*/
420 };
421 
422 struct dc_debug_data {
423 	uint32_t ltFailCount;
424 	uint32_t i2cErrorCount;
425 	uint32_t auxErrorCount;
426 };
427 
428 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
429 struct dc_phy_addr_space_config {
430 	struct {
431 		uint64_t start_addr;
432 		uint64_t end_addr;
433 		uint64_t fb_top;
434 		uint64_t fb_offset;
435 		uint64_t fb_base;
436 		uint64_t agp_top;
437 		uint64_t agp_bot;
438 		uint64_t agp_base;
439 	} system_aperture;
440 
441 	struct {
442 		uint64_t page_table_start_addr;
443 		uint64_t page_table_end_addr;
444 		uint64_t page_table_base_addr;
445 	} gart_config;
446 
447 	bool valid;
448 	uint64_t page_table_default_page_addr;
449 };
450 
451 struct dc_virtual_addr_space_config {
452 	uint64_t	page_table_base_addr;
453 	uint64_t	page_table_start_addr;
454 	uint64_t	page_table_end_addr;
455 	uint32_t	page_table_block_size_in_bytes;
456 	uint8_t		page_table_depth; // 1 = 1 level, 2 = 2 level, etc.  0 = invalid
457 };
458 #endif
459 
460 struct dc_bounding_box_overrides {
461 	int sr_exit_time_ns;
462 	int sr_enter_plus_exit_time_ns;
463 	int urgent_latency_ns;
464 	int percent_of_ideal_drambw;
465 	int dram_clock_change_latency_ns;
466 	/* This forces a hard min on the DCFCLK we use
467 	 * for DML.  Unlike the debug option for forcing
468 	 * DCFCLK, this override affects watermark calculations
469 	 */
470 	int min_dcfclk_mhz;
471 };
472 
473 struct dc_state;
474 struct resource_pool;
475 struct dce_hwseq;
476 struct gpu_info_soc_bounding_box_v1_0;
477 struct dc {
478 	struct dc_versions versions;
479 	struct dc_caps caps;
480 	struct dc_cap_funcs cap_funcs;
481 	struct dc_config config;
482 	struct dc_debug_options debug;
483 	struct dc_bounding_box_overrides bb_overrides;
484 	struct dc_bug_wa work_arounds;
485 	struct dc_context *ctx;
486 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
487 	struct dc_phy_addr_space_config vm_pa_config;
488 #endif
489 
490 	uint8_t link_count;
491 	struct dc_link *links[MAX_PIPES * 2];
492 
493 	struct dc_state *current_state;
494 	struct resource_pool *res_pool;
495 
496 	struct clk_mgr *clk_mgr;
497 
498 	/* Display Engine Clock levels */
499 	struct dm_pp_clock_levels sclk_lvls;
500 
501 	/* Inputs into BW and WM calculations. */
502 	struct bw_calcs_dceip *bw_dceip;
503 	struct bw_calcs_vbios *bw_vbios;
504 #ifdef CONFIG_DRM_AMD_DC_DCN1_0
505 	struct dcn_soc_bounding_box *dcn_soc;
506 	struct dcn_ip_params *dcn_ip;
507 	struct display_mode_lib dml;
508 #endif
509 
510 	/* HW functions */
511 	struct hw_sequencer_funcs hwss;
512 	struct dce_hwseq *hwseq;
513 
514 	/* Require to optimize clocks and bandwidth for added/removed planes */
515 	bool optimized_required;
516 
517 	/* Require to maintain clocks and bandwidth for UEFI enabled HW */
518 	bool optimize_seamless_boot;
519 
520 	/* FBC compressor */
521 	struct compressor *fbc_compressor;
522 
523 	struct dc_debug_data debug_data;
524 
525 	const char *build_id;
526 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
527 	struct vm_helper *vm_helper;
528 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
529 #endif
530 };
531 
532 enum frame_buffer_mode {
533 	FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
534 	FRAME_BUFFER_MODE_ZFB_ONLY,
535 	FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
536 } ;
537 
538 struct dchub_init_data {
539 	int64_t zfb_phys_addr_base;
540 	int64_t zfb_mc_base_addr;
541 	uint64_t zfb_size_in_byte;
542 	enum frame_buffer_mode fb_mode;
543 	bool dchub_initialzied;
544 	bool dchub_info_valid;
545 };
546 
547 struct dc_init_data {
548 	struct hw_asic_id asic_id;
549 	void *driver; /* ctx */
550 	struct cgs_device *cgs_device;
551 	struct dc_bounding_box_overrides bb_overrides;
552 
553 	int num_virtual_links;
554 	/*
555 	 * If 'vbios_override' not NULL, it will be called instead
556 	 * of the real VBIOS. Intended use is Diagnostics on FPGA.
557 	 */
558 	struct dc_bios *vbios_override;
559 	enum dce_environment dce_environment;
560 
561 	struct dc_config flags;
562 	uint32_t log_mask;
563 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
564 	/**
565 	 * gpu_info FW provided soc bounding box struct or 0 if not
566 	 * available in FW
567 	 */
568 	const struct gpu_info_soc_bounding_box_v1_0 *soc_bounding_box;
569 #endif
570 };
571 
572 struct dc_callback_init {
573 #ifdef CONFIG_DRM_AMD_DC_HDCP
574 	struct cp_psp cp_psp;
575 #else
576 	uint8_t reserved;
577 #endif
578 };
579 
580 struct dc *dc_create(const struct dc_init_data *init_params);
581 void dc_hardware_init(struct dc *dc);
582 
583 int dc_get_vmid_use_vector(struct dc *dc);
584 #ifdef CONFIG_DRM_AMD_DC_DCN2_0
585 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
586 /* Returns the number of vmids supported */
587 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
588 #endif
589 void dc_init_callbacks(struct dc *dc,
590 		const struct dc_callback_init *init_params);
591 void dc_deinit_callbacks(struct dc *dc);
592 void dc_destroy(struct dc **dc);
593 
594 /*******************************************************************************
595  * Surface Interfaces
596  ******************************************************************************/
597 
598 enum {
599 	TRANSFER_FUNC_POINTS = 1025
600 };
601 
602 struct dc_hdr_static_metadata {
603 	/* display chromaticities and white point in units of 0.00001 */
604 	unsigned int chromaticity_green_x;
605 	unsigned int chromaticity_green_y;
606 	unsigned int chromaticity_blue_x;
607 	unsigned int chromaticity_blue_y;
608 	unsigned int chromaticity_red_x;
609 	unsigned int chromaticity_red_y;
610 	unsigned int chromaticity_white_point_x;
611 	unsigned int chromaticity_white_point_y;
612 
613 	uint32_t min_luminance;
614 	uint32_t max_luminance;
615 	uint32_t maximum_content_light_level;
616 	uint32_t maximum_frame_average_light_level;
617 };
618 
619 enum dc_transfer_func_type {
620 	TF_TYPE_PREDEFINED,
621 	TF_TYPE_DISTRIBUTED_POINTS,
622 	TF_TYPE_BYPASS,
623 	TF_TYPE_HWPWL
624 };
625 
626 struct dc_transfer_func_distributed_points {
627 	struct fixed31_32 red[TRANSFER_FUNC_POINTS];
628 	struct fixed31_32 green[TRANSFER_FUNC_POINTS];
629 	struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
630 
631 	uint16_t end_exponent;
632 	uint16_t x_point_at_y1_red;
633 	uint16_t x_point_at_y1_green;
634 	uint16_t x_point_at_y1_blue;
635 };
636 
637 enum dc_transfer_func_predefined {
638 	TRANSFER_FUNCTION_SRGB,
639 	TRANSFER_FUNCTION_BT709,
640 	TRANSFER_FUNCTION_PQ,
641 	TRANSFER_FUNCTION_LINEAR,
642 	TRANSFER_FUNCTION_UNITY,
643 	TRANSFER_FUNCTION_HLG,
644 	TRANSFER_FUNCTION_HLG12,
645 	TRANSFER_FUNCTION_GAMMA22,
646 	TRANSFER_FUNCTION_GAMMA24,
647 	TRANSFER_FUNCTION_GAMMA26
648 };
649 
650 
651 struct dc_transfer_func {
652 	struct kref refcount;
653 	enum dc_transfer_func_type type;
654 	enum dc_transfer_func_predefined tf;
655 	/* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
656 	uint32_t sdr_ref_white_level;
657 	struct dc_context *ctx;
658 	union {
659 		struct pwl_params pwl;
660 		struct dc_transfer_func_distributed_points tf_pts;
661 	};
662 };
663 
664 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
665 
666 union dc_3dlut_state {
667 	struct {
668 		uint32_t initialized:1;		/*if 3dlut is went through color module for initialization */
669 		uint32_t rmu_idx_valid:1;	/*if mux settings are valid*/
670 		uint32_t rmu_mux_num:3;		/*index of mux to use*/
671 		uint32_t mpc_rmu0_mux:4;	/*select mpcc on mux, one of the following : mpcc0, mpcc1, mpcc2, mpcc3*/
672 		uint32_t mpc_rmu1_mux:4;
673 		uint32_t mpc_rmu2_mux:4;
674 		uint32_t reserved:15;
675 	} bits;
676 	uint32_t raw;
677 };
678 
679 
680 struct dc_3dlut {
681 	struct kref refcount;
682 	struct tetrahedral_params lut_3d;
683 	uint32_t hdr_multiplier;
684 	bool initialized; /*remove after diag fix*/
685 	union dc_3dlut_state state;
686 	struct dc_context *ctx;
687 };
688 #endif
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 sdr_white_level: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 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
740 	bool triplebuffer_flips;
741 #endif
742 	struct scaling_taps scaling_quality;
743 	struct rect src_rect;
744 	struct rect dst_rect;
745 	struct rect clip_rect;
746 
747 	struct plane_size plane_size;
748 	union dc_tiling_info tiling_info;
749 
750 	struct dc_plane_dcc_param dcc;
751 
752 	struct dc_gamma *gamma_correction;
753 	struct dc_transfer_func *in_transfer_func;
754 	struct dc_bias_and_scale *bias_and_scale;
755 	struct dc_csc_transform input_csc_color_matrix;
756 	struct fixed31_32 coeff_reduction_factor;
757 	uint32_t sdr_white_level;
758 
759 	// TODO: No longer used, remove
760 	struct dc_hdr_static_metadata hdr_static_ctx;
761 
762 	enum dc_color_space color_space;
763 
764 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
765 	struct dc_3dlut *lut3d_func;
766 	struct dc_transfer_func *in_shaper_func;
767 	struct dc_transfer_func *blend_tf;
768 #endif
769 
770 	enum surface_pixel_format format;
771 	enum dc_rotation_angle rotation;
772 	enum plane_stereo_format stereo_format;
773 
774 	bool is_tiling_rotated;
775 	bool per_pixel_alpha;
776 	bool global_alpha;
777 	int  global_alpha_value;
778 	bool visible;
779 	bool flip_immediate;
780 	bool horizontal_mirror;
781 	int layer_index;
782 
783 	union surface_update_flags update_flags;
784 	/* private to DC core */
785 	struct dc_plane_status status;
786 	struct dc_context *ctx;
787 
788 	/* HACK: Workaround for forcing full reprogramming under some conditions */
789 	bool force_full_update;
790 
791 	/* private to dc_surface.c */
792 	enum dc_irq_source irq_source;
793 	struct kref refcount;
794 };
795 
796 struct dc_plane_info {
797 	struct plane_size plane_size;
798 	union dc_tiling_info tiling_info;
799 	struct dc_plane_dcc_param dcc;
800 	enum surface_pixel_format format;
801 	enum dc_rotation_angle rotation;
802 	enum plane_stereo_format stereo_format;
803 	enum dc_color_space color_space;
804 	unsigned int sdr_white_level;
805 	bool horizontal_mirror;
806 	bool visible;
807 	bool per_pixel_alpha;
808 	bool global_alpha;
809 	int  global_alpha_value;
810 	bool input_csc_enabled;
811 	int layer_index;
812 };
813 
814 struct dc_scaling_info {
815 	struct rect src_rect;
816 	struct rect dst_rect;
817 	struct rect clip_rect;
818 	struct scaling_taps scaling_quality;
819 };
820 
821 struct dc_surface_update {
822 	struct dc_plane_state *surface;
823 
824 	/* isr safe update parameters.  null means no updates */
825 	const struct dc_flip_addrs *flip_addr;
826 	const struct dc_plane_info *plane_info;
827 	const struct dc_scaling_info *scaling_info;
828 
829 	/* following updates require alloc/sleep/spin that is not isr safe,
830 	 * null means no updates
831 	 */
832 	const struct dc_gamma *gamma;
833 	const struct dc_transfer_func *in_transfer_func;
834 
835 	const struct dc_csc_transform *input_csc_color_matrix;
836 	const struct fixed31_32 *coeff_reduction_factor;
837 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
838 	const struct dc_transfer_func *func_shaper;
839 	const struct dc_3dlut *lut3d_func;
840 	const struct dc_transfer_func *blend_tf;
841 #endif
842 };
843 
844 /*
845  * Create a new surface with default parameters;
846  */
847 struct dc_plane_state *dc_create_plane_state(struct dc *dc);
848 const struct dc_plane_status *dc_plane_get_status(
849 		const struct dc_plane_state *plane_state);
850 
851 void dc_plane_state_retain(struct dc_plane_state *plane_state);
852 void dc_plane_state_release(struct dc_plane_state *plane_state);
853 
854 void dc_gamma_retain(struct dc_gamma *dc_gamma);
855 void dc_gamma_release(struct dc_gamma **dc_gamma);
856 struct dc_gamma *dc_create_gamma(void);
857 
858 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
859 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
860 struct dc_transfer_func *dc_create_transfer_func(void);
861 
862 #if defined(CONFIG_DRM_AMD_DC_DCN2_0)
863 struct dc_3dlut *dc_create_3dlut_func(void);
864 void dc_3dlut_func_release(struct dc_3dlut *lut);
865 void dc_3dlut_func_retain(struct dc_3dlut *lut);
866 #endif
867 /*
868  * This structure holds a surface address.  There could be multiple addresses
869  * in cases such as Stereo 3D, Planar YUV, etc.  Other per-flip attributes such
870  * as frame durations and DCC format can also be set.
871  */
872 struct dc_flip_addrs {
873 	struct dc_plane_address address;
874 	unsigned int flip_timestamp_in_us;
875 	bool flip_immediate;
876 	/* TODO: add flip duration for FreeSync */
877 };
878 
879 bool dc_post_update_surfaces_to_stream(
880 		struct dc *dc);
881 
882 #include "dc_stream.h"
883 
884 /*
885  * Structure to store surface/stream associations for validation
886  */
887 struct dc_validation_set {
888 	struct dc_stream_state *stream;
889 	struct dc_plane_state *plane_states[MAX_SURFACES];
890 	uint8_t plane_count;
891 };
892 
893 bool dc_validate_seamless_boot_timing(const struct dc *dc,
894 				const struct dc_sink *sink,
895 				struct dc_crtc_timing *crtc_timing);
896 
897 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
898 
899 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
900 
901 bool dc_set_generic_gpio_for_stereo(bool enable,
902 		struct gpio_service *gpio_service);
903 
904 /*
905  * fast_validate: we return after determining if we can support the new state,
906  * but before we populate the programming info
907  */
908 enum dc_status dc_validate_global_state(
909 		struct dc *dc,
910 		struct dc_state *new_ctx,
911 		bool fast_validate);
912 
913 
914 void dc_resource_state_construct(
915 		const struct dc *dc,
916 		struct dc_state *dst_ctx);
917 
918 void dc_resource_state_copy_construct(
919 		const struct dc_state *src_ctx,
920 		struct dc_state *dst_ctx);
921 
922 void dc_resource_state_copy_construct_current(
923 		const struct dc *dc,
924 		struct dc_state *dst_ctx);
925 
926 void dc_resource_state_destruct(struct dc_state *context);
927 
928 /*
929  * TODO update to make it about validation sets
930  * Set up streams and links associated to drive sinks
931  * The streams parameter is an absolute set of all active streams.
932  *
933  * After this call:
934  *   Phy, Encoder, Timing Generator are programmed and enabled.
935  *   New streams are enabled with blank stream; no memory read.
936  */
937 bool dc_commit_state(struct dc *dc, struct dc_state *context);
938 
939 
940 struct dc_state *dc_create_state(struct dc *dc);
941 struct dc_state *dc_copy_state(struct dc_state *src_ctx);
942 void dc_retain_state(struct dc_state *context);
943 void dc_release_state(struct dc_state *context);
944 
945 /*******************************************************************************
946  * Link Interfaces
947  ******************************************************************************/
948 
949 struct dpcd_caps {
950 	union dpcd_rev dpcd_rev;
951 	union max_lane_count max_ln_count;
952 	union max_down_spread max_down_spread;
953 	union dprx_feature dprx_feature;
954 
955 	/* valid only for eDP v1.4 or higher*/
956 	uint8_t edp_supported_link_rates_count;
957 	enum dc_link_rate edp_supported_link_rates[8];
958 
959 	/* dongle type (DP converter, CV smart dongle) */
960 	enum display_dongle_type dongle_type;
961 	/* branch device or sink device */
962 	bool is_branch_dev;
963 	/* Dongle's downstream count. */
964 	union sink_count sink_count;
965 	/* If dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER,
966 	indicates 'Frame Sequential-to-lllFrame Pack' conversion capability.*/
967 	struct dc_dongle_caps dongle_caps;
968 
969 	uint32_t sink_dev_id;
970 	int8_t sink_dev_id_str[6];
971 	int8_t sink_hw_revision;
972 	int8_t sink_fw_revision[2];
973 
974 	uint32_t branch_dev_id;
975 	int8_t branch_dev_name[6];
976 	int8_t branch_hw_revision;
977 	int8_t branch_fw_revision[2];
978 
979 	bool allow_invalid_MSA_timing_param;
980 	bool panel_mode_edp;
981 	bool dpcd_display_control_capable;
982 	bool ext_receiver_cap_field_present;
983 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
984 	union dpcd_fec_capability fec_cap;
985 	struct dpcd_dsc_capabilities dsc_caps;
986 #endif
987 };
988 
989 #include "dc_link.h"
990 
991 /*******************************************************************************
992  * Sink Interfaces - A sink corresponds to a display output device
993  ******************************************************************************/
994 
995 struct dc_container_id {
996 	// 128bit GUID in binary form
997 	unsigned char  guid[16];
998 	// 8 byte port ID -> ELD.PortID
999 	unsigned int   portId[2];
1000 	// 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
1001 	unsigned short manufacturerName;
1002 	// 2 byte product code -> ELD.ProductCode
1003 	unsigned short productCode;
1004 };
1005 
1006 
1007 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
1008 struct dc_sink_dsc_caps {
1009 	// 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
1010 	// 'false' if they are sink's DSC caps
1011 	bool is_virtual_dpcd_dsc;
1012 	struct dsc_dec_dpcd_caps dsc_dec_caps;
1013 };
1014 #endif
1015 
1016 /*
1017  * The sink structure contains EDID and other display device properties
1018  */
1019 struct dc_sink {
1020 	enum signal_type sink_signal;
1021 	struct dc_edid dc_edid; /* raw edid */
1022 	struct dc_edid_caps edid_caps; /* parse display caps */
1023 	struct dc_container_id *dc_container_id;
1024 	uint32_t dongle_max_pix_clk;
1025 	void *priv;
1026 	struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
1027 	bool converter_disable_audio;
1028 
1029 #ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
1030 	struct dc_sink_dsc_caps sink_dsc_caps;
1031 #endif
1032 
1033 	/* private to DC core */
1034 	struct dc_link *link;
1035 	struct dc_context *ctx;
1036 
1037 	uint32_t sink_id;
1038 
1039 	/* private to dc_sink.c */
1040 	// refcount must be the last member in dc_sink, since we want the
1041 	// sink structure to be logically cloneable up to (but not including)
1042 	// refcount
1043 	struct kref refcount;
1044 };
1045 
1046 void dc_sink_retain(struct dc_sink *sink);
1047 void dc_sink_release(struct dc_sink *sink);
1048 
1049 struct dc_sink_init_data {
1050 	enum signal_type sink_signal;
1051 	struct dc_link *link;
1052 	uint32_t dongle_max_pix_clk;
1053 	bool converter_disable_audio;
1054 };
1055 
1056 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
1057 
1058 /* Newer interfaces  */
1059 struct dc_cursor {
1060 	struct dc_plane_address address;
1061 	struct dc_cursor_attributes attributes;
1062 };
1063 
1064 
1065 /*******************************************************************************
1066  * Interrupt interfaces
1067  ******************************************************************************/
1068 enum dc_irq_source dc_interrupt_to_irq_source(
1069 		struct dc *dc,
1070 		uint32_t src_id,
1071 		uint32_t ext_id);
1072 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
1073 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
1074 enum dc_irq_source dc_get_hpd_irq_source_at_index(
1075 		struct dc *dc, uint32_t link_index);
1076 
1077 /*******************************************************************************
1078  * Power Interfaces
1079  ******************************************************************************/
1080 
1081 void dc_set_power_state(
1082 		struct dc *dc,
1083 		enum dc_acpi_cm_power_state power_state);
1084 void dc_resume(struct dc *dc);
1085 unsigned int dc_get_current_backlight_pwm(struct dc *dc);
1086 unsigned int dc_get_target_backlight_pwm(struct dc *dc);
1087 
1088 bool dc_is_dmcu_initialized(struct dc *dc);
1089 
1090 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
1091 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
1092 #if defined(CONFIG_DRM_AMD_DC_DSC_SUPPORT)
1093 /*******************************************************************************
1094  * DSC Interfaces
1095  ******************************************************************************/
1096 #include "dc_dsc.h"
1097 #endif
1098 #endif /* DC_INTERFACE_H_ */
1099