2 * Copyright 2012-2023 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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26 #ifndef DC_INTERFACE_H_
27 #define DC_INTERFACE_H_
32 #include "grph_object_defs.h"
33 #include "logger_types.h"
34 #include "hdcp_msg_types.h"
35 #include "gpio_types.h"
36 #include "link_service_types.h"
37 #include "grph_object_ctrl_defs.h"
38 #include <inc/hw/opp.h>
40 #include "hwss/hw_sequencer.h"
41 #include "inc/compressor.h"
42 #include "inc/hw/dmcu.h"
43 #include "dml/display_mode_lib.h"
45 #include "dml2/dml2_wrapper.h"
47 #include "dmub/inc/dmub_cmd.h"
49 #include "spl/dc_spl_types.h"
51 struct abm_save_restore;
53 /* forward declaration */
55 struct set_config_cmd_payload;
56 struct dmub_notification;
58 #define DC_VER "3.2.316"
60 #define MAX_SURFACES 4
63 #define MIN_VIEWPORT_SIZE 12
65 #define MAX_HOST_ROUTERS_NUM 2
67 /* Display Core Interfaces */
70 struct dmcu_version dmcu_version;
73 enum dp_protocol_version {
80 DC_PLANE_TYPE_INVALID,
81 DC_PLANE_TYPE_DCE_RGB,
82 DC_PLANE_TYPE_DCE_UNDERLAY,
83 DC_PLANE_TYPE_DCN_UNIVERSAL,
86 // Sizes defined as multiples of 64KB
97 enum dc_plane_type type;
98 uint32_t per_pixel_alpha : 1;
100 uint32_t argb8888 : 1;
105 } pixel_format_support;
106 // max upscaling factor x1000
107 // upscaling factors are always >= 1
108 // for example, 1080p -> 8K is 4.0, or 4000 raw value
113 } max_upscale_factor;
114 // max downscale factor x1000
115 // downscale factors are always <= 1
116 // for example, 8K -> 1080p is 0.25, or 250 raw value
121 } max_downscale_factor;
122 // minimal width/height
128 * DOC: color-management-caps
130 * **Color management caps (DPP and MPC)**
132 * Modules/color calculates various color operations which are translated to
133 * abstracted HW. DCE 5-12 had almost no important changes, but starting with
134 * DCN1, every new generation comes with fairly major differences in color
135 * pipeline. Therefore, we abstract color pipe capabilities so modules/DM can
136 * decide mapping to HW block based on logical capabilities.
140 * struct rom_curve_caps - predefined transfer function caps for degamma and regamma
141 * @srgb: RGB color space transfer func
142 * @bt2020: BT.2020 transfer func
143 * @gamma2_2: standard gamma
144 * @pq: perceptual quantizer transfer function
145 * @hlg: hybrid log–gamma transfer function
147 struct rom_curve_caps {
150 uint16_t gamma2_2 : 1;
156 * struct dpp_color_caps - color pipeline capabilities for display pipe and
159 * @dcn_arch: all DCE generations treated the same
160 * @input_lut_shared: shared with DGAM. Input LUT is different than most LUTs,
161 * just plain 256-entry lookup
162 * @icsc: input color space conversion
163 * @dgam_ram: programmable degamma LUT
164 * @post_csc: post color space conversion, before gamut remap
165 * @gamma_corr: degamma correction
166 * @hw_3d_lut: 3D LUT support. It implies a shaper LUT before. It may be shared
167 * with MPC by setting mpc:shared_3d_lut flag
168 * @ogam_ram: programmable out/blend gamma LUT
169 * @ocsc: output color space conversion
170 * @dgam_rom_for_yuv: pre-defined degamma LUT for YUV planes
171 * @dgam_rom_caps: pre-definied curve caps for degamma 1D LUT
172 * @ogam_rom_caps: pre-definied curve caps for regamma 1D LUT
174 * Note: hdr_mult and gamut remap (CTM) are always available in DPP (in that order)
176 struct dpp_color_caps {
177 uint16_t dcn_arch : 1;
178 uint16_t input_lut_shared : 1;
180 uint16_t dgam_ram : 1;
181 uint16_t post_csc : 1;
182 uint16_t gamma_corr : 1;
183 uint16_t hw_3d_lut : 1;
184 uint16_t ogam_ram : 1;
186 uint16_t dgam_rom_for_yuv : 1;
187 struct rom_curve_caps dgam_rom_caps;
188 struct rom_curve_caps ogam_rom_caps;
192 * struct mpc_color_caps - color pipeline capabilities for multiple pipe and
193 * plane combined blocks
195 * @gamut_remap: color transformation matrix
196 * @ogam_ram: programmable out gamma LUT
197 * @ocsc: output color space conversion matrix
198 * @num_3dluts: MPC 3D LUT; always assumes a preceding shaper LUT
199 * @shared_3d_lut: shared 3D LUT flag. Can be either DPP or MPC, but single
201 * @ogam_rom_caps: pre-definied curve caps for regamma 1D LUT
203 struct mpc_color_caps {
204 uint16_t gamut_remap : 1;
205 uint16_t ogam_ram : 1;
207 uint16_t num_3dluts : 3;
208 uint16_t shared_3d_lut:1;
209 struct rom_curve_caps ogam_rom_caps;
213 * struct dc_color_caps - color pipes capabilities for DPP and MPC hw blocks
214 * @dpp: color pipes caps for DPP
215 * @mpc: color pipes caps for MPC
217 struct dc_color_caps {
218 struct dpp_color_caps dpp;
219 struct mpc_color_caps mpc;
222 struct dc_dmub_caps {
228 bool aux_backlight_support;
232 bool sharpener_support;
236 uint32_t max_streams;
239 uint32_t max_slave_planes;
240 uint32_t max_slave_yuv_planes;
241 uint32_t max_slave_rgb_planes;
243 uint32_t max_downscale_ratio;
244 uint32_t i2c_speed_in_khz;
245 uint32_t i2c_speed_in_khz_hdcp;
246 uint32_t dmdata_alloc_size;
247 unsigned int max_cursor_size;
248 unsigned int max_video_width;
250 * max video plane width that can be safely assumed to be always
251 * supported by single DPP pipe.
253 unsigned int max_optimizable_video_width;
254 unsigned int min_horizontal_blanking_period;
255 int linear_pitch_alignment;
256 bool dcc_const_color;
260 bool post_blend_color_processing;
261 bool force_dp_tps4_for_cp2520;
262 bool disable_dp_clk_share;
263 bool psp_setup_panel_mode;
264 bool extended_aux_timeout_support;
268 uint32_t num_of_internal_disp;
269 enum dp_protocol_version max_dp_protocol_version;
270 unsigned int mall_size_per_mem_channel;
271 unsigned int mall_size_total;
272 unsigned int cursor_cache_size;
273 struct dc_plane_cap planes[MAX_PLANES];
274 struct dc_color_caps color;
275 struct dc_dmub_caps dmub_caps;
277 bool dp_hdmi21_pcon_support;
278 bool edp_dsc_support;
279 bool vbios_lttpr_aware;
280 bool vbios_lttpr_enable;
281 uint32_t max_otg_num;
282 uint32_t max_cab_allocation_bytes;
283 uint32_t cache_line_size;
284 uint32_t cache_num_ways;
285 uint16_t subvp_fw_processing_delay_us;
286 uint8_t subvp_drr_max_vblank_margin_us;
287 uint16_t subvp_prefetch_end_to_mall_start_us;
288 uint8_t subvp_swath_height_margin_lines; // subvp start line must be aligned to 2 x swath height
289 uint16_t subvp_pstate_allow_width_us;
290 uint16_t subvp_vertical_int_margin_us;
292 uint32_t max_v_total;
293 bool vtotal_limited_by_fp2;
294 uint32_t max_disp_clock_khz_at_vmin;
295 uint8_t subvp_drr_vblank_start_margin_us;
296 bool cursor_not_scaled;
297 bool dcmode_power_limits_present;
299 /* Conservative limit for DCC cases which require ODM4:1 to support*/
300 uint32_t dcc_plane_width_limit;
301 struct dc_scl_caps scl_caps;
305 bool no_connect_phy_config;
307 bool skip_clock_update;
308 bool lt_early_cr_pattern;
313 uint8_t dcfclk_ds: 1;
314 } clock_update_disable_mask;
315 bool skip_psr_ips_crtc_disable;
317 struct dc_dcc_surface_param {
318 struct dc_size surface_size;
319 enum surface_pixel_format format;
320 unsigned int plane0_pitch;
321 struct dc_size plane1_size;
322 unsigned int plane1_pitch;
324 enum swizzle_mode_values swizzle_mode;
325 enum swizzle_mode_addr3_values swizzle_mode_addr3;
327 enum dc_scan_direction scan;
330 struct dc_dcc_setting {
331 unsigned int max_compressed_blk_size;
332 unsigned int max_uncompressed_blk_size;
333 bool independent_64b_blks;
334 //These bitfields to be used starting with DCN 3.0
336 uint32_t dcc_256_64_64 : 1;//available in ASICs before DCN 3.0 (the worst compression case)
337 uint32_t dcc_128_128_uncontrained : 1; //available in ASICs before DCN 3.0
338 uint32_t dcc_256_128_128 : 1; //available starting with DCN 3.0
339 uint32_t dcc_256_256_unconstrained : 1; //available in ASICs before DCN 3.0 (the best compression case)
340 uint32_t dcc_256_256 : 1; //available in ASICs starting with DCN 4.0x (the best compression case)
341 uint32_t dcc_256_128 : 1; //available in ASICs starting with DCN 4.0x
342 uint32_t dcc_256_64 : 1; //available in ASICs starting with DCN 4.0x (the worst compression case)
346 struct dc_surface_dcc_cap {
349 struct dc_dcc_setting rgb;
353 struct dc_dcc_setting luma;
354 struct dc_dcc_setting chroma;
359 bool const_color_support;
362 struct dc_static_screen_params {
369 unsigned int num_frames;
373 /* Surface update type is used by dc_update_surfaces_and_stream
374 * The update type is determined at the very beginning of the function based
375 * on parameters passed in and decides how much programming (or updating) is
376 * going to be done during the call.
378 * UPDATE_TYPE_FAST is used for really fast updates that do not require much
379 * logical calculations or hardware register programming. This update MUST be
380 * ISR safe on windows. Currently fast update will only be used to flip surface
383 * UPDATE_TYPE_MED is used for slower updates which require significant hw
384 * re-programming however do not affect bandwidth consumption or clock
385 * requirements. At present, this is the level at which front end updates
386 * that do not require us to run bw_calcs happen. These are in/out transfer func
387 * updates, viewport offset changes, recout size changes and pixel depth changes.
388 * This update can be done at ISR, but we want to minimize how often this happens.
390 * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
391 * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
392 * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
393 * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
394 * a full update. This cannot be done at ISR level and should be a rare event.
395 * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
396 * underscan we don't expect to see this call at all.
399 enum surface_update_type {
400 UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
401 UPDATE_TYPE_MED, /* ISR safe, most of programming needed, no bw/clk change*/
402 UPDATE_TYPE_FULL, /* may need to shuffle resources */
405 /* Forward declaration*/
407 struct dc_plane_state;
410 struct dc_cap_funcs {
411 bool (*get_dcc_compression_cap)(const struct dc *dc,
412 const struct dc_dcc_surface_param *input,
413 struct dc_surface_dcc_cap *output);
414 bool (*get_subvp_en)(struct dc *dc, struct dc_state *context);
417 struct link_training_settings;
419 union allow_lttpr_non_transparent_mode {
427 /* Structure to hold configuration flags set by dm at dc creation. */
430 bool disable_disp_pll_sharing;
432 bool disable_fractional_pwm;
433 bool allow_seamless_boot_optimization;
434 bool seamless_boot_edp_requested;
435 bool edp_not_connected;
436 bool edp_no_power_sequencing;
439 union allow_lttpr_non_transparent_mode allow_lttpr_non_transparent_mode;
440 bool multi_mon_pp_mclk_switch;
443 bool enable_windowed_mpo_odm;
444 bool forceHBR2CP2520; // Used for switching between test patterns TPS4 and CP2520
445 uint32_t allow_edp_hotplug_detection;
446 bool clamp_min_dcfclk;
447 uint64_t vblank_alignment_dto_params;
448 uint8_t vblank_alignment_max_frame_time_diff;
449 bool is_asymmetric_memory;
450 bool is_single_rank_dimm;
451 bool is_vmin_only_asic;
454 bool use_pipe_ctx_sync_logic;
455 bool ignore_dpref_ss;
456 bool enable_mipi_converter_optimization;
457 bool use_default_clock_table;
458 bool force_bios_enable_lttpr;
459 uint8_t force_bios_fixed_vs;
460 int sdpif_request_limit_words_per_umc;
461 bool dc_mode_clk_limit_support;
462 bool EnableMinDispClkODM;
463 bool enable_auto_dpm_test_logs;
464 unsigned int disable_ips;
465 unsigned int disable_ips_in_vpb;
466 bool disable_ips_in_dpms_off;
467 bool usb4_bw_alloc_support;
468 bool allow_0_dtb_clk;
469 bool use_assr_psp_message;
470 bool support_edp0_on_dp1;
471 unsigned int enable_fpo_flicker_detection;
472 bool disable_hbr_audio_dp2;
473 bool consolidated_dpia_dp_lt;
474 bool set_pipe_unlock_order;
475 bool enable_dpia_pre_training;
478 enum visual_confirm {
479 VISUAL_CONFIRM_DISABLE = 0,
480 VISUAL_CONFIRM_SURFACE = 1,
481 VISUAL_CONFIRM_HDR = 2,
482 VISUAL_CONFIRM_MPCTREE = 4,
483 VISUAL_CONFIRM_PSR = 5,
484 VISUAL_CONFIRM_SWAPCHAIN = 6,
485 VISUAL_CONFIRM_FAMS = 7,
486 VISUAL_CONFIRM_SWIZZLE = 9,
487 VISUAL_CONFIRM_REPLAY = 12,
488 VISUAL_CONFIRM_SUBVP = 14,
489 VISUAL_CONFIRM_MCLK_SWITCH = 16,
490 VISUAL_CONFIRM_FAMS2 = 19,
491 VISUAL_CONFIRM_HW_CURSOR = 20,
492 VISUAL_CONFIRM_VABC = 21,
495 enum dc_psr_power_opts {
496 psr_power_opt_invalid = 0x0,
497 psr_power_opt_smu_opt_static_screen = 0x1,
498 psr_power_opt_z10_static_screen = 0x10,
499 psr_power_opt_ds_disable_allow = 0x100,
502 enum dml_hostvm_override_opts {
503 DML_HOSTVM_NO_OVERRIDE = 0x0,
504 DML_HOSTVM_OVERRIDE_FALSE = 0x1,
505 DML_HOSTVM_OVERRIDE_TRUE = 0x2,
508 enum dc_replay_power_opts {
509 replay_power_opt_invalid = 0x0,
510 replay_power_opt_smu_opt_static_screen = 0x1,
511 replay_power_opt_z10_static_screen = 0x10,
517 DCC_HALF_REQ_DISALBE = 2,
520 enum in_game_fams_config {
521 INGAME_FAMS_SINGLE_DISP_ENABLE, // enable in-game fams
522 INGAME_FAMS_DISABLE, // disable in-game fams
523 INGAME_FAMS_MULTI_DISP_ENABLE, //enable in-game fams for multi-display
524 INGAME_FAMS_MULTI_DISP_CLAMPED_ONLY, //enable in-game fams for multi-display only for clamped RR strategies
528 * enum pipe_split_policy - Pipe split strategy supported by DCN
530 * This enum is used to define the pipe split policy supported by DCN. By
531 * default, DC favors MPC_SPLIT_DYNAMIC.
533 enum pipe_split_policy {
535 * @MPC_SPLIT_DYNAMIC: DC will automatically decide how to split the
536 * pipe in order to bring the best trade-off between performance and
537 * power consumption. This is the recommended option.
539 MPC_SPLIT_DYNAMIC = 0,
542 * @MPC_SPLIT_AVOID: Avoid pipe split, which means that DC will not
543 * try any sort of split optimization.
548 * @MPC_SPLIT_AVOID_MULT_DISP: With this option, DC will only try to
549 * optimize the pipe utilization when using a single display; if the
550 * user connects to a second display, DC will avoid pipe split.
552 MPC_SPLIT_AVOID_MULT_DISP = 2,
555 enum wm_report_mode {
556 WM_REPORT_DEFAULT = 0,
557 WM_REPORT_OVERRIDE = 1,
560 dtm_level_p0 = 0,/*highest voltage*/
564 dtm_level_p4,/*when active_display_count = 0*/
568 DCN_PWR_STATE_UNKNOWN = -1,
569 DCN_PWR_STATE_MISSION_MODE = 0,
570 DCN_PWR_STATE_LOW_POWER = 3,
573 enum dcn_zstate_support_state {
574 DCN_ZSTATE_SUPPORT_UNKNOWN,
575 DCN_ZSTATE_SUPPORT_ALLOW,
576 DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY,
577 DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY,
578 DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY,
579 DCN_ZSTATE_SUPPORT_DISALLOW,
583 * struct dc_clocks - DC pipe clocks
585 * For any clocks that may differ per pipe only the max is stored in this
590 int actual_dispclk_khz;
592 int actual_dppclk_khz;
593 int disp_dpp_voltage_level_khz;
596 int dcfclk_deep_sleep_khz;
600 bool p_state_change_support;
601 enum dcn_zstate_support_state zstate_support;
604 bool fclk_p_state_change_support;
605 enum dcn_pwr_state pwr_state;
607 * Elements below are not compared for the purposes of
608 * optimization required
610 bool prev_p_state_change_support;
611 bool fclk_prev_p_state_change_support;
613 int host_router_bw_kbps[MAX_HOST_ROUTERS_NUM];
616 * @fw_based_mclk_switching
618 * DC has a mechanism that leverage the variable refresh rate to switch
619 * memory clock in cases that we have a large latency to achieve the
620 * memory clock change and a short vblank window. DC has some
621 * requirements to enable this feature, and this field describes if the
622 * system support or not such a feature.
624 bool fw_based_mclk_switching;
625 bool fw_based_mclk_switching_shut_down;
627 enum dtm_pstate dtm_level;
628 int max_supported_dppclk_khz;
629 int max_supported_dispclk_khz;
630 int bw_dppclk_khz; /*a copy of dppclk_khz*/
632 int idle_dramclk_khz;
634 int subvp_prefetch_dramclk_khz;
635 int subvp_prefetch_fclk_khz;
638 struct dc_bw_validation_profile {
641 unsigned long long total_ticks;
642 unsigned long long voltage_level_ticks;
643 unsigned long long watermark_ticks;
644 unsigned long long rq_dlg_ticks;
646 unsigned long long total_count;
647 unsigned long long skip_fast_count;
648 unsigned long long skip_pass_count;
649 unsigned long long skip_fail_count;
652 #define BW_VAL_TRACE_SETUP() \
653 unsigned long long end_tick = 0; \
654 unsigned long long voltage_level_tick = 0; \
655 unsigned long long watermark_tick = 0; \
656 unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
657 dm_get_timestamp(dc->ctx) : 0
659 #define BW_VAL_TRACE_COUNT() \
660 if (dc->debug.bw_val_profile.enable) \
661 dc->debug.bw_val_profile.total_count++
663 #define BW_VAL_TRACE_SKIP(status) \
664 if (dc->debug.bw_val_profile.enable) { \
665 if (!voltage_level_tick) \
666 voltage_level_tick = dm_get_timestamp(dc->ctx); \
667 dc->debug.bw_val_profile.skip_ ## status ## _count++; \
670 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
671 if (dc->debug.bw_val_profile.enable) \
672 voltage_level_tick = dm_get_timestamp(dc->ctx)
674 #define BW_VAL_TRACE_END_WATERMARKS() \
675 if (dc->debug.bw_val_profile.enable) \
676 watermark_tick = dm_get_timestamp(dc->ctx)
678 #define BW_VAL_TRACE_FINISH() \
679 if (dc->debug.bw_val_profile.enable) { \
680 end_tick = dm_get_timestamp(dc->ctx); \
681 dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
682 dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
683 if (watermark_tick) { \
684 dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
685 dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
689 union mem_low_power_enable_options {
704 union root_clock_optimization_options {
716 uint32_t reserved: 22;
721 union fine_grain_clock_gating_enable_options {
723 bool dccg_global_fgcg_rep : 1; /* Global fine grain clock gating of repeaters */
724 bool dchub : 1; /* Display controller hub */
726 bool dpp : 1; /* Display pipes and planes */
727 bool opp : 1; /* Output pixel processing */
728 bool optc : 1; /* Output pipe timing combiner */
729 bool dio : 1; /* Display output */
730 bool dwb : 1; /* Display writeback */
731 bool mmhubbub : 1; /* Multimedia hub */
732 bool dmu : 1; /* Display core management unit */
733 bool az : 1; /* Azalia */
735 bool dsc : 1; /* Display stream compression */
737 uint32_t reserved : 19;
742 enum pg_hw_pipe_resources {
752 PG_HW_PIPE_RESOURCES_NUM_ELEMENT
755 enum pg_hw_resources {
763 PG_HW_RESOURCES_NUM_ELEMENT
766 struct pg_block_update {
767 bool pg_pipe_res_update[PG_HW_PIPE_RESOURCES_NUM_ELEMENT][MAX_PIPES];
768 bool pg_res_update[PG_HW_RESOURCES_NUM_ELEMENT];
771 union dpia_debug_options {
773 uint32_t disable_dpia:1; /* bit 0 */
774 uint32_t force_non_lttpr:1; /* bit 1 */
775 uint32_t extend_aux_rd_interval:1; /* bit 2 */
776 uint32_t disable_mst_dsc_work_around:1; /* bit 3 */
777 uint32_t enable_force_tbt3_work_around:1; /* bit 4 */
778 uint32_t disable_usb4_pm_support:1; /* bit 5 */
779 uint32_t enable_consolidated_dpia_dp_lt:1; /* bit 6 */
780 uint32_t enable_dpia_pre_training:1; /* bit 7 */
781 uint32_t reserved:24;
786 /* AUX wake work around options
787 * 0: enable/disable work around
788 * 1: use default timeout LINK_AUX_WAKE_TIMEOUT_MS
790 * 31-16: timeout in ms
792 union aux_wake_wa_options {
794 uint32_t enable_wa : 1;
795 uint32_t use_default_timeout : 1;
797 uint32_t timeout_ms : 16;
802 struct dc_debug_data {
803 uint32_t ltFailCount;
804 uint32_t i2cErrorCount;
805 uint32_t auxErrorCount;
808 struct dc_phy_addr_space_config {
821 uint64_t page_table_start_addr;
822 uint64_t page_table_end_addr;
823 uint64_t page_table_base_addr;
824 bool base_addr_is_mc_addr;
829 uint64_t page_table_default_page_addr;
832 struct dc_virtual_addr_space_config {
833 uint64_t page_table_base_addr;
834 uint64_t page_table_start_addr;
835 uint64_t page_table_end_addr;
836 uint32_t page_table_block_size_in_bytes;
837 uint8_t page_table_depth; // 1 = 1 level, 2 = 2 level, etc. 0 = invalid
840 struct dc_bounding_box_overrides {
842 int sr_enter_plus_exit_time_ns;
843 int sr_exit_z8_time_ns;
844 int sr_enter_plus_exit_z8_time_ns;
845 int urgent_latency_ns;
846 int percent_of_ideal_drambw;
847 int dram_clock_change_latency_ns;
848 int dummy_clock_change_latency_ns;
849 int fclk_clock_change_latency_ns;
850 /* This forces a hard min on the DCFCLK we use
851 * for DML. Unlike the debug option for forcing
852 * DCFCLK, this override affects watermark calculations
858 struct resource_pool;
863 * struct dc_debug_options - DC debug struct
865 * This struct provides a simple mechanism for developers to change some
866 * configurations, enable/disable features, and activate extra debug options.
867 * This can be very handy to narrow down whether some specific feature is
868 * causing an issue or not.
870 struct dc_debug_options {
871 bool native422_support;
873 enum visual_confirm visual_confirm;
874 int visual_confirm_rect_height;
880 bool validation_trace;
881 bool bandwidth_calcs_trace;
882 int max_downscale_src_width;
884 /* stutter efficiency related */
885 bool disable_stutter;
887 enum dcc_option disable_dcc;
890 * @pipe_split_policy: Define which pipe split policy is used by the
893 enum pipe_split_policy pipe_split_policy;
894 bool force_single_disp_pipe_split;
895 bool voltage_align_fclk;
896 bool disable_min_fclk;
898 bool disable_dfs_bypass;
899 bool disable_dpp_power_gate;
900 bool disable_hubp_power_gate;
901 bool disable_dsc_power_gate;
902 bool disable_optc_power_gate;
903 bool disable_hpo_power_gate;
904 int dsc_min_slice_height_override;
905 int dsc_bpp_increment_div;
906 bool disable_pplib_wm_range;
907 enum wm_report_mode pplib_wm_report_mode;
908 unsigned int min_disp_clk_khz;
909 unsigned int min_dpp_clk_khz;
910 unsigned int min_dram_clk_khz;
911 int sr_exit_time_dpm0_ns;
912 int sr_enter_plus_exit_time_dpm0_ns;
914 int sr_enter_plus_exit_time_ns;
915 int sr_exit_z8_time_ns;
916 int sr_enter_plus_exit_z8_time_ns;
917 int urgent_latency_ns;
918 uint32_t underflow_assert_delay_us;
919 int percent_of_ideal_drambw;
920 int dram_clock_change_latency_ns;
921 bool optimized_watermark;
923 bool disable_pplib_clock_request;
924 bool disable_clock_gate;
925 bool disable_mem_low_power;
928 bool force_abm_enable;
929 bool disable_stereo_support;
931 bool performance_trace;
932 bool az_endpoint_mute_only;
933 bool always_use_regamma;
934 bool recovery_enabled;
935 bool avoid_vbios_exec_table;
936 bool scl_reset_length10;
938 bool skip_detection_link_training;
939 uint32_t edid_read_retry_times;
940 unsigned int force_odm_combine; //bit vector based on otg inst
941 unsigned int seamless_boot_odm_combine;
942 unsigned int force_odm_combine_4to1; //bit vector based on otg inst
943 int minimum_z8_residency_time;
944 int minimum_z10_residency_time;
946 unsigned int force_fclk_khz;
948 bool ips_disallow_entry;
949 bool dmub_offload_enabled;
950 bool dmcub_emulation;
951 bool disable_idle_power_optimizations;
952 unsigned int mall_size_override;
953 unsigned int mall_additional_timer_percent;
954 bool mall_error_as_fatal;
955 bool dmub_command_table; /* for testing only */
956 struct dc_bw_validation_profile bw_val_profile;
958 bool disable_48mhz_pwrdwn;
959 /* This forces a hard min on the DCFCLK requested to SMU/PP
960 * watermarks are not affected.
962 unsigned int force_min_dcfclk_mhz;
964 bool disable_timing_sync;
966 int force_clock_mode;/*every mode change.*/
968 bool disable_dram_clock_change_vactive_support;
969 bool validate_dml_output;
970 bool enable_dmcub_surface_flip;
971 bool usbc_combo_phy_reset_wa;
972 bool enable_dram_clock_change_one_display_vactive;
973 /* TODO - remove once tested */
975 bool set_mst_en_for_sst;
977 bool force_dp2_lt_fallback_method;
978 bool ignore_cable_id;
979 union mem_low_power_enable_options enable_mem_low_power;
980 union root_clock_optimization_options root_clock_optimization;
981 union fine_grain_clock_gating_enable_options enable_fine_grain_clock_gating;
982 bool hpo_optimization;
983 bool force_vblank_alignment;
985 /* Enable dmub aux for legacy ddc */
986 bool enable_dmub_aux_for_legacy_ddc;
988 enum in_game_fams_config disable_fams_gaming;
989 /* FEC/PSR1 sequence enable delay in 100us */
990 uint8_t fec_enable_delay_in100us;
991 bool enable_driver_sequence_debug;
992 enum det_size crb_alloc_policy;
993 int crb_alloc_policy_min_disp_count;
995 bool enable_z9_disable_interface;
996 bool psr_skip_crtc_disable;
997 uint32_t ips_skip_crtc_disable_mask;
998 union dpia_debug_options dpia_debug;
999 bool disable_fixed_vs_aux_timeout_wa;
1000 uint32_t fixed_vs_aux_delay_config_wa;
1001 bool force_disable_subvp;
1002 bool force_subvp_mclk_switch;
1003 bool allow_sw_cursor_fallback;
1004 unsigned int force_subvp_num_ways;
1005 unsigned int force_mall_ss_num_ways;
1006 bool alloc_extra_way_for_cursor;
1007 uint32_t subvp_extra_lines;
1008 bool force_usr_allow;
1009 /* uses value at boot and disables switch */
1010 bool disable_dtb_ref_clk_switch;
1011 bool extended_blank_optimization;
1012 union aux_wake_wa_options aux_wake_wa;
1013 uint32_t mst_start_top_delay;
1014 uint8_t psr_power_use_phy_fsm;
1015 enum dml_hostvm_override_opts dml_hostvm_override;
1016 bool dml_disallow_alternate_prefetch_modes;
1017 bool use_legacy_soc_bb_mechanism;
1018 bool exit_idle_opt_for_cursor_updates;
1020 bool enable_single_display_2to1_odm_policy;
1021 bool enable_double_buffered_dsc_pg_support;
1022 bool enable_dp_dig_pixel_rate_div_policy;
1024 enum lttpr_mode lttpr_mode_override;
1025 unsigned int dsc_delay_factor_wa_x1000;
1026 unsigned int min_prefetch_in_strobe_ns;
1027 bool disable_unbounded_requesting;
1028 bool dig_fifo_off_in_blank;
1029 bool override_dispclk_programming;
1031 bool disallow_dispclk_dppclk_ds;
1032 bool disable_fpo_optimizations;
1033 bool support_eDP1_5;
1034 uint32_t fpo_vactive_margin_us;
1035 bool disable_fpo_vactive;
1036 bool disable_boot_optimizations;
1037 bool override_odm_optimization;
1038 bool minimize_dispclk_using_odm;
1039 bool disable_subvp_high_refresh;
1040 bool disable_dp_plus_plus_wa;
1041 uint32_t fpo_vactive_min_active_margin_us;
1042 uint32_t fpo_vactive_max_blank_us;
1043 bool enable_hpo_pg_support;
1044 bool enable_legacy_fast_update;
1045 bool disable_dc_mode_overwrite;
1046 bool replay_skip_crtc_disabled;
1047 bool ignore_pg;/*do nothing, let pmfw control it*/
1048 bool psp_disabled_wa;
1049 unsigned int ips2_eval_delay_us;
1050 unsigned int ips2_entry_delay_us;
1051 bool optimize_ips_handshake;
1052 bool disable_dmub_reallow_idle;
1053 bool disable_timeout;
1054 bool disable_extblankadj;
1055 bool enable_idle_reg_checks;
1056 unsigned int static_screen_wait_frames;
1058 bool force_chroma_subsampling_1tap;
1059 unsigned int dcc_meta_propagation_delay_us;
1060 bool disable_422_left_edge_pixel;
1061 bool dml21_force_pstate_method;
1062 uint32_t dml21_force_pstate_method_values[MAX_PIPES];
1063 uint32_t dml21_disable_pstate_method_mask;
1064 union fw_assisted_mclk_switch_version fams_version;
1065 union dmub_fams2_global_feature_config fams2_config;
1066 unsigned int force_cositing;
1067 unsigned int disable_spl;
1068 unsigned int force_easf;
1069 unsigned int force_sharpness;
1070 unsigned int force_sharpness_level;
1071 unsigned int force_lls;
1072 bool notify_dpia_hr_bw;
1073 bool enable_ips_visual_confirm;
1074 unsigned int sharpen_policy;
1075 unsigned int scale_to_sharpness_policy;
1076 bool skip_full_updated_if_possible;
1077 unsigned int enable_oled_edp_power_up_opt;
1078 bool enable_hblank_borrow;
1079 bool force_subvp_df_throttle;
1083 /* Generic structure that can be used to query properties of DC. More fields
1084 * can be added as required.
1086 struct dc_current_properties {
1087 unsigned int cursor_size_limit;
1090 enum frame_buffer_mode {
1091 FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
1092 FRAME_BUFFER_MODE_ZFB_ONLY,
1093 FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
1096 struct dchub_init_data {
1097 int64_t zfb_phys_addr_base;
1098 int64_t zfb_mc_base_addr;
1099 uint64_t zfb_size_in_byte;
1100 enum frame_buffer_mode fb_mode;
1101 bool dchub_initialzied;
1102 bool dchub_info_valid;
1107 struct dc_init_data {
1108 struct hw_asic_id asic_id;
1109 void *driver; /* ctx */
1110 struct cgs_device *cgs_device;
1111 struct dc_bounding_box_overrides bb_overrides;
1113 int num_virtual_links;
1115 * If 'vbios_override' not NULL, it will be called instead
1116 * of the real VBIOS. Intended use is Diagnostics on FPGA.
1118 struct dc_bios *vbios_override;
1119 enum dce_environment dce_environment;
1121 struct dmub_offload_funcs *dmub_if;
1122 struct dc_reg_helper_state *dmub_offload;
1124 struct dc_config flags;
1127 struct dpcd_vendor_signature vendor_signature;
1128 bool force_smu_not_present;
1130 * IP offset for run time initializaion of register addresses
1132 * DCN3.5+ will fail dc_create() if these fields are null for them. They are
1133 * applicable starting with DCN32/321 and are not used for ASICs upstreamed
1136 uint32_t *dcn_reg_offsets;
1137 uint32_t *nbio_reg_offsets;
1138 uint32_t *clk_reg_offsets;
1139 struct dml2_soc_bb *bb_from_dmub;
1142 struct dc_callback_init {
1143 struct cp_psp cp_psp;
1146 struct dc *dc_create(const struct dc_init_data *init_params);
1147 void dc_hardware_init(struct dc *dc);
1149 int dc_get_vmid_use_vector(struct dc *dc);
1150 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
1151 /* Returns the number of vmids supported */
1152 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
1153 void dc_init_callbacks(struct dc *dc,
1154 const struct dc_callback_init *init_params);
1155 void dc_deinit_callbacks(struct dc *dc);
1156 void dc_destroy(struct dc **dc);
1158 /* Surface Interfaces */
1161 TRANSFER_FUNC_POINTS = 1025
1164 struct dc_hdr_static_metadata {
1165 /* display chromaticities and white point in units of 0.00001 */
1166 unsigned int chromaticity_green_x;
1167 unsigned int chromaticity_green_y;
1168 unsigned int chromaticity_blue_x;
1169 unsigned int chromaticity_blue_y;
1170 unsigned int chromaticity_red_x;
1171 unsigned int chromaticity_red_y;
1172 unsigned int chromaticity_white_point_x;
1173 unsigned int chromaticity_white_point_y;
1175 uint32_t min_luminance;
1176 uint32_t max_luminance;
1177 uint32_t maximum_content_light_level;
1178 uint32_t maximum_frame_average_light_level;
1181 enum dc_transfer_func_type {
1183 TF_TYPE_DISTRIBUTED_POINTS,
1188 struct dc_transfer_func_distributed_points {
1189 struct fixed31_32 red[TRANSFER_FUNC_POINTS];
1190 struct fixed31_32 green[TRANSFER_FUNC_POINTS];
1191 struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
1193 uint16_t end_exponent;
1194 uint16_t x_point_at_y1_red;
1195 uint16_t x_point_at_y1_green;
1196 uint16_t x_point_at_y1_blue;
1199 enum dc_transfer_func_predefined {
1200 TRANSFER_FUNCTION_SRGB,
1201 TRANSFER_FUNCTION_BT709,
1202 TRANSFER_FUNCTION_PQ,
1203 TRANSFER_FUNCTION_LINEAR,
1204 TRANSFER_FUNCTION_UNITY,
1205 TRANSFER_FUNCTION_HLG,
1206 TRANSFER_FUNCTION_HLG12,
1207 TRANSFER_FUNCTION_GAMMA22,
1208 TRANSFER_FUNCTION_GAMMA24,
1209 TRANSFER_FUNCTION_GAMMA26
1213 struct dc_transfer_func {
1214 struct kref refcount;
1215 enum dc_transfer_func_type type;
1216 enum dc_transfer_func_predefined tf;
1217 /* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
1218 uint32_t sdr_ref_white_level;
1220 struct pwl_params pwl;
1221 struct dc_transfer_func_distributed_points tf_pts;
1226 union dc_3dlut_state {
1228 uint32_t initialized:1; /*if 3dlut is went through color module for initialization */
1229 uint32_t rmu_idx_valid:1; /*if mux settings are valid*/
1230 uint32_t rmu_mux_num:3; /*index of mux to use*/
1231 uint32_t mpc_rmu0_mux:4; /*select mpcc on mux, one of the following : mpcc0, mpcc1, mpcc2, mpcc3*/
1232 uint32_t mpc_rmu1_mux:4;
1233 uint32_t mpc_rmu2_mux:4;
1234 uint32_t reserved:15;
1241 struct kref refcount;
1242 struct tetrahedral_params lut_3d;
1243 struct fixed31_32 hdr_multiplier;
1244 union dc_3dlut_state state;
1247 * This structure is filled in by dc_surface_get_status and contains
1248 * the last requested address and the currently active address so the called
1249 * can determine if there are any outstanding flips
1251 struct dc_plane_status {
1252 struct dc_plane_address requested_address;
1253 struct dc_plane_address current_address;
1254 bool is_flip_pending;
1258 union surface_update_flags {
1261 uint32_t addr_update:1;
1262 /* Medium updates */
1263 uint32_t dcc_change:1;
1264 uint32_t color_space_change:1;
1265 uint32_t horizontal_mirror_change:1;
1266 uint32_t per_pixel_alpha_change:1;
1267 uint32_t global_alpha_change:1;
1268 uint32_t hdr_mult:1;
1269 uint32_t rotation_change:1;
1270 uint32_t swizzle_change:1;
1271 uint32_t scaling_change:1;
1272 uint32_t position_change:1;
1273 uint32_t in_transfer_func_change:1;
1274 uint32_t input_csc_change:1;
1275 uint32_t coeff_reduction_change:1;
1276 uint32_t output_tf_change:1;
1277 uint32_t pixel_format_change:1;
1278 uint32_t plane_size_change:1;
1279 uint32_t gamut_remap_change:1;
1282 uint32_t new_plane:1;
1283 uint32_t bpp_change:1;
1284 uint32_t gamma_change:1;
1285 uint32_t bandwidth_change:1;
1286 uint32_t clock_change:1;
1287 uint32_t stereo_format_change:1;
1289 uint32_t tmz_changed:1;
1290 uint32_t mcm_transfer_function_enable_change:1; /* disable or enable MCM transfer func */
1291 uint32_t full_update:1;
1292 uint32_t sdr_white_level_nits:1;
1298 #define DC_REMOVE_PLANE_POINTERS 1
1300 struct dc_plane_state {
1301 struct dc_plane_address address;
1302 struct dc_plane_flip_time time;
1303 bool triplebuffer_flips;
1304 struct scaling_taps scaling_quality;
1305 struct rect src_rect;
1306 struct rect dst_rect;
1307 struct rect clip_rect;
1309 struct plane_size plane_size;
1310 struct dc_tiling_info tiling_info;
1312 struct dc_plane_dcc_param dcc;
1314 struct dc_gamma gamma_correction;
1315 struct dc_transfer_func in_transfer_func;
1316 struct dc_bias_and_scale bias_and_scale;
1317 struct dc_csc_transform input_csc_color_matrix;
1318 struct fixed31_32 coeff_reduction_factor;
1319 struct fixed31_32 hdr_mult;
1320 struct colorspace_transform gamut_remap_matrix;
1322 // TODO: No longer used, remove
1323 struct dc_hdr_static_metadata hdr_static_ctx;
1325 enum dc_color_space color_space;
1327 struct dc_3dlut lut3d_func;
1328 struct dc_transfer_func in_shaper_func;
1329 struct dc_transfer_func blend_tf;
1331 struct dc_transfer_func *gamcor_tf;
1332 enum surface_pixel_format format;
1333 enum dc_rotation_angle rotation;
1334 enum plane_stereo_format stereo_format;
1336 bool is_tiling_rotated;
1337 bool per_pixel_alpha;
1338 bool pre_multiplied_alpha;
1340 int global_alpha_value;
1342 bool flip_immediate;
1343 bool horizontal_mirror;
1346 union surface_update_flags update_flags;
1347 bool flip_int_enabled;
1348 bool skip_manual_trigger;
1350 /* private to DC core */
1351 struct dc_plane_status status;
1352 struct dc_context *ctx;
1354 /* HACK: Workaround for forcing full reprogramming under some conditions */
1355 bool force_full_update;
1357 bool is_phantom; // TODO: Change mall_stream_config into mall_plane_config instead
1359 /* private to dc_surface.c */
1360 enum dc_irq_source irq_source;
1361 struct kref refcount;
1362 struct tg_color visual_confirm_color;
1364 bool is_statically_allocated;
1365 enum chroma_cositing cositing;
1366 enum dc_cm2_shaper_3dlut_setting mcm_shaper_3dlut_setting;
1367 bool mcm_lut1d_enable;
1368 struct dc_cm2_func_luts mcm_luts;
1370 enum mpcc_movable_cm_location mcm_location;
1371 struct dc_csc_transform cursor_csc_color_matrix;
1372 bool adaptive_sharpness_en;
1373 int adaptive_sharpness_policy;
1374 int sharpness_level;
1375 enum linear_light_scaling linear_light_scaling;
1376 unsigned int sdr_white_level_nits;
1379 struct dc_plane_info {
1380 struct plane_size plane_size;
1381 struct dc_tiling_info tiling_info;
1382 struct dc_plane_dcc_param dcc;
1383 enum surface_pixel_format format;
1384 enum dc_rotation_angle rotation;
1385 enum plane_stereo_format stereo_format;
1386 enum dc_color_space color_space;
1387 bool horizontal_mirror;
1389 bool per_pixel_alpha;
1390 bool pre_multiplied_alpha;
1392 int global_alpha_value;
1393 bool input_csc_enabled;
1395 enum chroma_cositing cositing;
1398 #include "dc_stream.h"
1400 struct dc_scratch_space {
1401 /* used to temporarily backup plane states of a stream during
1402 * dc update. The reason is that plane states are overwritten
1403 * with surface updates in dc update. Once they are overwritten
1404 * current state is no longer valid. We want to temporarily
1405 * store current value in plane states so we can still recover
1406 * a valid current state during dc update.
1408 struct dc_plane_state plane_states[MAX_SURFACES];
1410 struct dc_stream_state stream_state;
1414 struct dc_debug_options debug;
1415 struct dc_versions versions;
1416 struct dc_caps caps;
1417 struct dc_cap_funcs cap_funcs;
1418 struct dc_config config;
1419 struct dc_bounding_box_overrides bb_overrides;
1420 struct dc_bug_wa work_arounds;
1421 struct dc_context *ctx;
1422 struct dc_phy_addr_space_config vm_pa_config;
1425 struct dc_link *links[MAX_LINKS];
1426 struct link_service *link_srv;
1428 struct dc_state *current_state;
1429 struct resource_pool *res_pool;
1431 struct clk_mgr *clk_mgr;
1433 /* Display Engine Clock levels */
1434 struct dm_pp_clock_levels sclk_lvls;
1436 /* Inputs into BW and WM calculations. */
1437 struct bw_calcs_dceip *bw_dceip;
1438 struct bw_calcs_vbios *bw_vbios;
1439 struct dcn_soc_bounding_box *dcn_soc;
1440 struct dcn_ip_params *dcn_ip;
1441 struct display_mode_lib dml;
1444 struct hw_sequencer_funcs hwss;
1445 struct dce_hwseq *hwseq;
1447 /* Require to optimize clocks and bandwidth for added/removed planes */
1448 bool optimized_required;
1449 bool wm_optimized_required;
1450 bool idle_optimizations_allowed;
1451 bool enable_c20_dtm_b0;
1453 /* Require to maintain clocks and bandwidth for UEFI enabled HW */
1455 /* FBC compressor */
1456 struct compressor *fbc_compressor;
1458 struct dc_debug_data debug_data;
1459 struct dpcd_vendor_signature vendor_signature;
1461 const char *build_id;
1462 struct vm_helper *vm_helper;
1464 uint32_t *dcn_reg_offsets;
1465 uint32_t *nbio_reg_offsets;
1466 uint32_t *clk_reg_offsets;
1468 /* Scratch memory */
1472 * For matching clock_limits table in driver with table
1475 struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES];
1476 } update_bw_bounding_box;
1477 struct dc_scratch_space current_state;
1478 struct dc_scratch_space new_state;
1479 struct dc_stream_state temp_stream; // Used so we don't need to allocate stream on the stack
1480 bool pipes_to_unlock_first[MAX_PIPES]; /* Any of the pipes indicated here should be unlocked first */
1483 struct dml2_configuration_options dml2_options;
1484 struct dml2_configuration_options dml2_tmp;
1485 enum dc_acpi_cm_power_state power_state;
1489 struct dc_scaling_info {
1490 struct rect src_rect;
1491 struct rect dst_rect;
1492 struct rect clip_rect;
1493 struct scaling_taps scaling_quality;
1496 struct dc_fast_update {
1497 const struct dc_flip_addrs *flip_addr;
1498 const struct dc_gamma *gamma;
1499 const struct colorspace_transform *gamut_remap_matrix;
1500 const struct dc_csc_transform *input_csc_color_matrix;
1501 const struct fixed31_32 *coeff_reduction_factor;
1502 struct dc_transfer_func *out_transfer_func;
1503 struct dc_csc_transform *output_csc_transform;
1504 const struct dc_csc_transform *cursor_csc_color_matrix;
1507 struct dc_surface_update {
1508 struct dc_plane_state *surface;
1510 /* isr safe update parameters. null means no updates */
1511 const struct dc_flip_addrs *flip_addr;
1512 const struct dc_plane_info *plane_info;
1513 const struct dc_scaling_info *scaling_info;
1514 struct fixed31_32 hdr_mult;
1515 /* following updates require alloc/sleep/spin that is not isr safe,
1516 * null means no updates
1518 const struct dc_gamma *gamma;
1519 const struct dc_transfer_func *in_transfer_func;
1521 const struct dc_csc_transform *input_csc_color_matrix;
1522 const struct fixed31_32 *coeff_reduction_factor;
1523 const struct dc_transfer_func *func_shaper;
1524 const struct dc_3dlut *lut3d_func;
1525 const struct dc_transfer_func *blend_tf;
1526 const struct colorspace_transform *gamut_remap_matrix;
1528 * Color Transformations for pre-blend MCM (Shaper, 3DLUT, 1DLUT)
1530 * change cm2_params.component_settings: Full update
1531 * change cm2_params.cm2_luts: Fast update
1533 const struct dc_cm2_parameters *cm2_params;
1534 const struct dc_csc_transform *cursor_csc_color_matrix;
1535 unsigned int sdr_white_level_nits;
1536 struct dc_bias_and_scale bias_and_scale;
1540 * Create a new surface with default parameters;
1542 void dc_gamma_retain(struct dc_gamma *dc_gamma);
1543 void dc_gamma_release(struct dc_gamma **dc_gamma);
1544 struct dc_gamma *dc_create_gamma(void);
1546 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
1547 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
1548 struct dc_transfer_func *dc_create_transfer_func(void);
1550 struct dc_3dlut *dc_create_3dlut_func(void);
1551 void dc_3dlut_func_release(struct dc_3dlut *lut);
1552 void dc_3dlut_func_retain(struct dc_3dlut *lut);
1554 void dc_post_update_surfaces_to_stream(
1557 #include "dc_stream.h"
1560 * struct dc_validation_set - Struct to store surface/stream associations for validation
1562 struct dc_validation_set {
1564 * @stream: Stream state properties
1566 struct dc_stream_state *stream;
1569 * @plane_states: Surface state
1571 struct dc_plane_state *plane_states[MAX_SURFACES];
1574 * @plane_count: Total of active planes
1576 uint8_t plane_count;
1579 bool dc_validate_boot_timing(const struct dc *dc,
1580 const struct dc_sink *sink,
1581 struct dc_crtc_timing *crtc_timing);
1583 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
1585 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
1587 enum dc_status dc_validate_with_context(struct dc *dc,
1588 const struct dc_validation_set set[],
1590 struct dc_state *context,
1591 bool fast_validate);
1593 bool dc_set_generic_gpio_for_stereo(bool enable,
1594 struct gpio_service *gpio_service);
1597 * fast_validate: we return after determining if we can support the new state,
1598 * but before we populate the programming info
1600 enum dc_status dc_validate_global_state(
1602 struct dc_state *new_ctx,
1603 bool fast_validate);
1605 bool dc_acquire_release_mpc_3dlut(
1606 struct dc *dc, bool acquire,
1607 struct dc_stream_state *stream,
1608 struct dc_3dlut **lut,
1609 struct dc_transfer_func **shaper);
1611 bool dc_resource_is_dsc_encoding_supported(const struct dc *dc);
1612 void get_audio_check(struct audio_info *aud_modes,
1613 struct audio_check *aud_chk);
1615 bool fast_nonaddr_updates_exist(struct dc_fast_update *fast_update, int surface_count);
1616 void populate_fast_updates(struct dc_fast_update *fast_update,
1617 struct dc_surface_update *srf_updates,
1619 struct dc_stream_update *stream_update);
1621 * Set up streams and links associated to drive sinks
1622 * The streams parameter is an absolute set of all active streams.
1625 * Phy, Encoder, Timing Generator are programmed and enabled.
1626 * New streams are enabled with blank stream; no memory read.
1628 enum dc_status dc_commit_streams(struct dc *dc, struct dc_commit_streams_params *params);
1631 struct dc_plane_state *dc_get_surface_for_mpcc(struct dc *dc,
1632 struct dc_stream_state *stream,
1636 uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane);
1638 void dc_set_disable_128b_132b_stream_overhead(bool disable);
1640 /* The function returns minimum bandwidth required to drive a given timing
1641 * return - minimum required timing bandwidth in kbps.
1643 uint32_t dc_bandwidth_in_kbps_from_timing(
1644 const struct dc_crtc_timing *timing,
1645 const enum dc_link_encoding_format link_encoding);
1647 /* Link Interfaces */
1649 * A link contains one or more sinks and their connected status.
1650 * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported.
1653 struct dc_sink *remote_sinks[MAX_SINKS_PER_LINK];
1654 unsigned int sink_count;
1655 struct dc_sink *local_sink;
1656 unsigned int link_index;
1657 enum dc_connection_type type;
1658 enum signal_type connector_signal;
1659 enum dc_irq_source irq_source_hpd;
1660 enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */
1662 bool is_hpd_filter_disabled;
1666 * @link_state_valid:
1668 * If there is no link and local sink, this variable should be set to
1669 * false. Otherwise, it should be set to true; usually, the function
1670 * core_link_enable_stream sets this field to true.
1672 bool link_state_valid;
1673 bool aux_access_disabled;
1674 bool sync_lt_in_progress;
1675 bool skip_stream_reenable;
1676 bool is_internal_display;
1677 /** @todo Rename. Flag an endpoint as having a programmable mapping to a DIG encoder. */
1678 bool is_dig_mapping_flexible;
1679 bool hpd_status; /* HPD status of link without physical HPD pin. */
1680 bool is_hpd_pending; /* Indicates a new received hpd */
1682 /* USB4 DPIA links skip verifying link cap, instead performing the fallback method
1683 * for every link training. This is incompatible with DP LL compliance automation,
1684 * which expects the same link settings to be used every retry on a link loss.
1685 * This flag is used to skip the fallback when link loss occurs during automation.
1687 bool skip_fallback_on_link_loss;
1689 bool edp_sink_present;
1691 struct dp_trace dp_trace;
1693 /* caps is the same as reported_link_cap. link_traing use
1694 * reported_link_cap. Will clean up. TODO
1696 struct dc_link_settings reported_link_cap;
1697 struct dc_link_settings verified_link_cap;
1698 struct dc_link_settings cur_link_settings;
1699 struct dc_lane_settings cur_lane_setting[LANE_COUNT_DP_MAX];
1700 struct dc_link_settings preferred_link_setting;
1701 /* preferred_training_settings are override values that
1702 * come from DM. DM is responsible for the memory
1703 * management of the override pointers.
1705 struct dc_link_training_overrides preferred_training_settings;
1706 struct dp_audio_test_data audio_test_data;
1708 uint8_t ddc_hw_inst;
1712 uint8_t link_enc_hw_inst;
1713 /* DIG link encoder ID. Used as index in link encoder resource pool.
1714 * For links with fixed mapping to DIG, this is not changed after dc_link
1717 enum engine_id eng_id;
1718 enum engine_id dpia_preferred_eng_id;
1720 bool test_pattern_enabled;
1721 /* Pending/Current test pattern are only used to perform and track
1722 * FIXED_VS retimer test pattern/lane adjustment override state.
1723 * Pending allows link HWSS to differentiate PHY vs non-PHY pattern,
1724 * to perform specific lane adjust overrides before setting certain
1725 * PHY test patterns. In cases when lane adjust and set test pattern
1726 * calls are not performed atomically (i.e. performing link training),
1727 * pending_test_pattern will be invalid or contain a non-PHY test pattern
1728 * and current_test_pattern will contain required context for any future
1729 * set pattern/set lane adjust to transition between override state(s).
1731 enum dp_test_pattern current_test_pattern;
1732 enum dp_test_pattern pending_test_pattern;
1734 union compliance_test_state compliance_test_state;
1738 struct ddc_service *ddc;
1740 enum dp_panel_mode panel_mode;
1743 /* Private to DC core */
1745 const struct dc *dc;
1747 struct dc_context *ctx;
1749 struct panel_cntl *panel_cntl;
1750 struct link_encoder *link_enc;
1751 struct graphics_object_id link_id;
1752 /* Endpoint type distinguishes display endpoints which do not have entries
1753 * in the BIOS connector table from those that do. Helps when tracking link
1754 * encoder to display endpoint assignments.
1756 enum display_endpoint_type ep_type;
1757 union ddi_channel_mapping ddi_channel_mapping;
1758 struct connector_device_tag_info device_tag;
1759 struct dpcd_caps dpcd_caps;
1760 uint32_t dongle_max_pix_clk;
1761 unsigned short chip_caps;
1762 unsigned int dpcd_sink_count;
1763 struct hdcp_caps hdcp_caps;
1764 enum edp_revision edp_revision;
1765 union dpcd_sink_ext_caps dpcd_sink_ext_caps;
1767 struct psr_settings psr_settings;
1768 struct replay_settings replay_settings;
1770 /* Drive settings read from integrated info table */
1771 struct dc_lane_settings bios_forced_drive_settings;
1773 /* Vendor specific LTTPR workaround variables */
1774 uint8_t vendor_specific_lttpr_link_rate_wa;
1775 bool apply_vendor_specific_lttpr_link_rate_wa;
1777 /* MST record stream using this link */
1779 bool dp_keep_receiver_powered;
1781 bool dp_skip_reset_segment;
1782 bool dp_skip_fs_144hz;
1783 bool dp_mot_reset_segment;
1784 /* Some USB4 docks do not handle turning off MST DSC once it has been enabled. */
1785 bool dpia_mst_dsc_always_on;
1786 /* Forced DPIA into TBT3 compatibility mode. */
1787 bool dpia_forced_tbt3_mode;
1788 bool dongle_mode_timing_override;
1789 bool blank_stream_on_ocs_change;
1790 bool read_dpcd204h_on_irq_hpd;
1792 struct link_mst_stream_allocation_table mst_stream_alloc_table;
1794 struct dc_link_status link_status;
1795 struct dprx_states dprx_states;
1797 struct gpio *hpd_gpio;
1798 enum dc_link_fec_state fec_state;
1799 bool link_powered_externally; // Used to bypass hardware sequencing delays when panel is powered down forcibly
1801 struct dc_panel_config panel_config;
1802 struct phy_state phy_state;
1803 // BW ALLOCATON USB4 ONLY
1804 struct dc_dpia_bw_alloc dpia_bw_alloc_config;
1805 bool skip_implict_edp_power_control;
1806 enum backlight_control_type backlight_control_type;
1809 /* Return an enumerated dc_link.
1810 * dc_link order is constant and determined at
1811 * boot time. They cannot be created or destroyed.
1812 * Use dc_get_caps() to get number of links.
1814 struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_index);
1816 /* Return instance id of the edp link. Inst 0 is primary edp link. */
1817 bool dc_get_edp_link_panel_inst(const struct dc *dc,
1818 const struct dc_link *link,
1819 unsigned int *inst_out);
1821 /* Return an array of link pointers to edp links. */
1822 void dc_get_edp_links(const struct dc *dc,
1823 struct dc_link **edp_links,
1826 void dc_set_edp_power(const struct dc *dc, struct dc_link *edp_link,
1829 /* The function initiates detection handshake over the given link. It first
1830 * determines if there are display connections over the link. If so it initiates
1831 * detection protocols supported by the connected receiver device. The function
1832 * contains protocol specific handshake sequences which are sometimes mandatory
1833 * to establish a proper connection between TX and RX. So it is always
1834 * recommended to call this function as the first link operation upon HPD event
1835 * or power up event. Upon completion, the function will update link structure
1836 * in place based on latest RX capabilities. The function may also cause dpms
1837 * to be reset to off for all currently enabled streams to the link. It is DM's
1838 * responsibility to serialize detection and DPMS updates.
1840 * @reason - Indicate which event triggers this detection. dc may customize
1841 * detection flow depending on the triggering events.
1842 * return false - if detection is not fully completed. This could happen when
1843 * there is an unrecoverable error during detection or detection is partially
1844 * completed (detection has been delegated to dm mst manager ie.
1845 * link->connection_type == dc_connection_mst_branch when returning false).
1846 * return true - detection is completed, link has been fully updated with latest
1849 bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason);
1851 struct dc_sink_init_data;
1853 /* When link connection type is dc_connection_mst_branch, remote sink can be
1854 * added to the link. The interface creates a remote sink and associates it with
1855 * current link. The sink will be retained by link until remove remote sink is
1858 * @dc_link - link the remote sink will be added to.
1859 * @edid - byte array of EDID raw data.
1860 * @len - size of the edid in byte
1863 struct dc_sink *dc_link_add_remote_sink(
1864 struct dc_link *dc_link,
1865 const uint8_t *edid,
1867 struct dc_sink_init_data *init_data);
1869 /* Remove remote sink from a link with dc_connection_mst_branch connection type.
1870 * @link - link the sink should be removed from
1871 * @sink - sink to be removed.
1873 void dc_link_remove_remote_sink(
1874 struct dc_link *link,
1875 struct dc_sink *sink);
1877 /* Enable HPD interrupt handler for a given link */
1878 void dc_link_enable_hpd(const struct dc_link *link);
1880 /* Disable HPD interrupt handler for a given link */
1881 void dc_link_disable_hpd(const struct dc_link *link);
1883 /* determine if there is a sink connected to the link
1885 * @type - dc_connection_single if connected, dc_connection_none otherwise.
1886 * return - false if an unexpected error occurs, true otherwise.
1888 * NOTE: This function doesn't detect downstream sink connections i.e
1889 * dc_connection_mst_branch, dc_connection_sst_branch. In this case, it will
1890 * return dc_connection_single if the branch device is connected despite of
1891 * downstream sink's connection status.
1893 bool dc_link_detect_connection_type(struct dc_link *link,
1894 enum dc_connection_type *type);
1896 /* query current hpd pin value
1897 * return - true HPD is asserted (HPD high), false otherwise (HPD low)
1900 bool dc_link_get_hpd_state(struct dc_link *link);
1902 /* Getter for cached link status from given link */
1903 const struct dc_link_status *dc_link_get_status(const struct dc_link *link);
1905 /* enable/disable hardware HPD filter.
1907 * @link - The link the HPD pin is associated with.
1908 * @enable = true - enable hardware HPD filter. HPD event will only queued to irq
1909 * handler once after no HPD change has been detected within dc default HPD
1910 * filtering interval since last HPD event. i.e if display keeps toggling hpd
1911 * pulses within default HPD interval, no HPD event will be received until HPD
1912 * toggles have stopped. Then HPD event will be queued to irq handler once after
1913 * dc default HPD filtering interval since last HPD event.
1915 * @enable = false - disable hardware HPD filter. HPD event will be queued
1916 * immediately to irq handler after no HPD change has been detected within
1917 * IRQ_HPD (aka HPD short pulse) interval (i.e 2ms).
1919 void dc_link_enable_hpd_filter(struct dc_link *link, bool enable);
1921 /* submit i2c read/write payloads through ddc channel
1922 * @link_index - index to a link with ddc in i2c mode
1923 * @cmd - i2c command structure
1924 * return - true if success, false otherwise.
1928 uint32_t link_index,
1929 struct i2c_command *cmd);
1931 /* submit i2c read/write payloads through oem channel
1932 * @link_index - index to a link with ddc in i2c mode
1933 * @cmd - i2c command structure
1934 * return - true if success, false otherwise.
1936 bool dc_submit_i2c_oem(
1938 struct i2c_command *cmd);
1940 enum aux_return_code_type;
1941 /* Attempt to transfer the given aux payload. This function does not perform
1942 * retries or handle error states. The reply is returned in the payload->reply
1943 * and the result through operation_result. Returns the number of bytes
1944 * transferred,or -1 on a failure.
1946 int dc_link_aux_transfer_raw(struct ddc_service *ddc,
1947 struct aux_payload *payload,
1948 enum aux_return_code_type *operation_result);
1950 bool dc_is_oem_i2c_device_present(
1952 size_t slave_address
1955 /* return true if the connected receiver supports the hdcp version */
1956 bool dc_link_is_hdcp14(struct dc_link *link, enum signal_type signal);
1957 bool dc_link_is_hdcp22(struct dc_link *link, enum signal_type signal);
1959 /* Notify DC about DP RX Interrupt (aka DP IRQ_HPD).
1961 * TODO - When defer_handling is true the function will have a different purpose.
1962 * It no longer does complete hpd rx irq handling. We should create a separate
1963 * interface specifically for this case.
1966 * true - Downstream port status changed. DM should call DC to do the
1968 * false - no change in Downstream port status. No further action required
1971 bool dc_link_handle_hpd_rx_irq(struct dc_link *dc_link,
1972 union hpd_irq_data *hpd_irq_dpcd_data, bool *out_link_loss,
1973 bool defer_handling, bool *has_left_work);
1974 /* handle DP specs define test automation sequence*/
1975 void dc_link_dp_handle_automated_test(struct dc_link *link);
1977 /* handle DP Link loss sequence and try to recover RX link loss with best
1980 void dc_link_dp_handle_link_loss(struct dc_link *link);
1982 /* Determine if hpd rx irq should be handled or ignored
1983 * return true - hpd rx irq should be handled.
1984 * return false - it is safe to ignore hpd rx irq event
1986 bool dc_link_dp_allow_hpd_rx_irq(const struct dc_link *link);
1988 /* Determine if link loss is indicated with a given hpd_irq_dpcd_data.
1989 * @link - link the hpd irq data associated with
1990 * @hpd_irq_dpcd_data - input hpd irq data
1991 * return - true if hpd irq data indicates a link lost
1993 bool dc_link_check_link_loss_status(struct dc_link *link,
1994 union hpd_irq_data *hpd_irq_dpcd_data);
1996 /* Read hpd rx irq data from a given link
1997 * @link - link where the hpd irq data should be read from
1998 * @irq_data - output hpd irq data
1999 * return - DC_OK if hpd irq data is read successfully, otherwise hpd irq data
2002 enum dc_status dc_link_dp_read_hpd_rx_irq_data(
2003 struct dc_link *link,
2004 union hpd_irq_data *irq_data);
2006 /* The function clears recorded DP RX states in the link. DM should call this
2007 * function when it is resuming from S3 power state to previously connected links.
2009 * TODO - in the future we should consider to expand link resume interface to
2010 * support clearing previous rx states. So we don't have to rely on dm to call
2011 * this interface explicitly.
2013 void dc_link_clear_dprx_states(struct dc_link *link);
2015 /* Destruct the mst topology of the link and reset the allocated payload table
2017 * NOTE: this should only be called if DM chooses not to call dc_link_detect but
2018 * still wants to reset MST topology on an unplug event */
2019 bool dc_link_reset_cur_dp_mst_topology(struct dc_link *link);
2021 /* The function calculates effective DP link bandwidth when a given link is
2022 * using the given link settings.
2024 * return - total effective link bandwidth in kbps.
2026 uint32_t dc_link_bandwidth_kbps(
2027 const struct dc_link *link,
2028 const struct dc_link_settings *link_setting);
2030 struct dp_audio_bandwidth_params {
2031 const struct dc_crtc_timing *crtc_timing;
2032 enum dp_link_encoding link_encoding;
2033 uint32_t channel_count;
2034 uint32_t sample_rate_hz;
2037 /* The function calculates the minimum size of hblank (in bytes) needed to
2038 * support the specified channel count and sample rate combination, given the
2039 * link encoding and timing to be used. This calculation is not supported
2042 * return - min hblank size in bytes, 0 if 8b/10b SST.
2044 uint32_t dc_link_required_hblank_size_bytes(
2045 const struct dc_link *link,
2046 struct dp_audio_bandwidth_params *audio_params);
2048 /* The function takes a snapshot of current link resource allocation state
2049 * @dc: pointer to dc of the dm calling this
2050 * @map: a dc link resource snapshot defined internally to dc.
2052 * DM needs to capture a snapshot of current link resource allocation mapping
2053 * and store it in its persistent storage.
2055 * Some of the link resource is using first come first serve policy.
2056 * The allocation mapping depends on original hotplug order. This information
2057 * is lost after driver is loaded next time. The snapshot is used in order to
2058 * restore link resource to its previous state so user will get consistent
2059 * link capability allocation across reboot.
2062 void dc_get_cur_link_res_map(const struct dc *dc, uint32_t *map);
2064 /* This function restores link resource allocation state from a snapshot
2065 * @dc: pointer to dc of the dm calling this
2066 * @map: a dc link resource snapshot defined internally to dc.
2068 * DM needs to call this function after initial link detection on boot and
2069 * before first commit streams to restore link resource allocation state
2070 * from previous boot session.
2072 * Some of the link resource is using first come first serve policy.
2073 * The allocation mapping depends on original hotplug order. This information
2074 * is lost after driver is loaded next time. The snapshot is used in order to
2075 * restore link resource to its previous state so user will get consistent
2076 * link capability allocation across reboot.
2079 void dc_restore_link_res_map(const struct dc *dc, uint32_t *map);
2081 /* TODO: this is not meant to be exposed to DM. Should switch to stream update
2082 * interface i.e stream_update->dsc_config
2084 bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx);
2086 /* translate a raw link rate data to bandwidth in kbps */
2087 uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw);
2089 /* determine the optimal bandwidth given link and required bw.
2090 * @link - current detected link
2091 * @req_bw - requested bandwidth in kbps
2092 * @link_settings - returned most optimal link settings that can fit the
2093 * requested bandwidth
2094 * return - false if link can't support requested bandwidth, true if link
2095 * settings is found.
2097 bool dc_link_decide_edp_link_settings(struct dc_link *link,
2098 struct dc_link_settings *link_settings,
2101 /* return the max dp link settings can be driven by the link without considering
2102 * connected RX device and its capability
2104 bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link,
2105 struct dc_link_settings *max_link_enc_cap);
2107 /* determine when the link is driving MST mode, what DP link channel coding
2108 * format will be used. The decision will remain unchanged until next HPD event.
2110 * @link - a link with DP RX connection
2111 * return - if stream is committed to this link with MST signal type, type of
2112 * channel coding format dc will choose.
2114 enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format(
2115 const struct dc_link *link);
2117 /* get max dp link settings the link can enable with all things considered. (i.e
2118 * TX/RX/Cable capabilities and dp override policies.
2120 * @link - a link with DP RX connection
2121 * return - max dp link settings the link can enable.
2124 const struct dc_link_settings *dc_link_get_link_cap(const struct dc_link *link);
2126 /* Get the highest encoding format that the link supports; highest meaning the
2127 * encoding format which supports the maximum bandwidth.
2129 * @link - a link with DP RX connection
2130 * return - highest encoding format link supports.
2132 enum dc_link_encoding_format dc_link_get_highest_encoding_format(const struct dc_link *link);
2134 /* Check if a RX (ex. DP sink, MST hub, passive or active dongle) is connected
2135 * to a link with dp connector signal type.
2136 * @link - a link with dp connector signal type
2137 * return - true if connected, false otherwise
2139 bool dc_link_is_dp_sink_present(struct dc_link *link);
2141 /* Force DP lane settings update to main-link video signal and notify the change
2142 * to DP RX via DPCD. This is a debug interface used for video signal integrity
2143 * tuning purpose. The interface assumes link has already been enabled with DP
2146 * @lt_settings - a container structure with desired hw_lane_settings
2148 void dc_link_set_drive_settings(struct dc *dc,
2149 struct link_training_settings *lt_settings,
2150 struct dc_link *link);
2152 /* Enable a test pattern in Link or PHY layer in an active link for compliance
2153 * test or debugging purpose. The test pattern will remain until next un-plug.
2155 * @link - active link with DP signal output enabled.
2156 * @test_pattern - desired test pattern to output.
2157 * NOTE: set to DP_TEST_PATTERN_VIDEO_MODE to disable previous test pattern.
2158 * @test_pattern_color_space - for video test pattern choose a desired color
2160 * @p_link_settings - For PHY pattern choose a desired link settings
2161 * @p_custom_pattern - some test pattern will require a custom input to
2162 * customize some pattern details. Otherwise keep it to NULL.
2163 * @cust_pattern_size - size of the custom pattern input.
2166 bool dc_link_dp_set_test_pattern(
2167 struct dc_link *link,
2168 enum dp_test_pattern test_pattern,
2169 enum dp_test_pattern_color_space test_pattern_color_space,
2170 const struct link_training_settings *p_link_settings,
2171 const unsigned char *p_custom_pattern,
2172 unsigned int cust_pattern_size);
2174 /* Force DP link settings to always use a specific value until reboot to a
2175 * specific link. If link has already been enabled, the interface will also
2176 * switch to desired link settings immediately. This is a debug interface to
2177 * generic dp issue trouble shooting.
2179 void dc_link_set_preferred_link_settings(struct dc *dc,
2180 struct dc_link_settings *link_setting,
2181 struct dc_link *link);
2183 /* Force DP link to customize a specific link training behavior by overriding to
2184 * standard DP specs defined protocol. This is a debug interface to trouble shoot
2185 * display specific link training issues or apply some display specific
2186 * workaround in link training.
2188 * @link_settings - if not NULL, force preferred link settings to the link.
2189 * @lt_override - a set of override pointers. If any pointer is none NULL, dc
2190 * will apply this particular override in future link training. If NULL is
2191 * passed in, dc resets previous overrides.
2192 * NOTE: DM must keep the memory from override pointers until DM resets preferred
2193 * training settings.
2195 void dc_link_set_preferred_training_settings(struct dc *dc,
2196 struct dc_link_settings *link_setting,
2197 struct dc_link_training_overrides *lt_overrides,
2198 struct dc_link *link,
2199 bool skip_immediate_retrain);
2201 /* return - true if FEC is supported with connected DP RX, false otherwise */
2202 bool dc_link_is_fec_supported(const struct dc_link *link);
2204 /* query FEC enablement policy to determine if FEC will be enabled by dc during
2206 * return - true if FEC should be enabled, false otherwise.
2208 bool dc_link_should_enable_fec(const struct dc_link *link);
2210 /* determine lttpr mode the current link should be enabled with a specific link
2213 enum lttpr_mode dc_link_decide_lttpr_mode(struct dc_link *link,
2214 struct dc_link_settings *link_setting);
2216 /* Force DP RX to update its power state.
2217 * NOTE: this interface doesn't update dp main-link. Calling this function will
2218 * cause DP TX main-link and DP RX power states out of sync. DM has to restore
2219 * RX power state back upon finish DM specific execution requiring DP RX in a
2220 * specific power state.
2221 * @on - true to set DP RX in D0 power state, false to set DP RX in D3 power
2224 void dc_link_dp_receiver_power_ctrl(struct dc_link *link, bool on);
2226 /* Force link to read base dp receiver caps from dpcd 000h - 00Fh and overwrite
2227 * current value read from extended receiver cap from 02200h - 0220Fh.
2228 * Some DP RX has problems of providing accurate DP receiver caps from extended
2229 * field, this interface is a workaround to revert link back to use base caps.
2231 void dc_link_overwrite_extended_receiver_cap(
2232 struct dc_link *link);
2234 void dc_link_edp_panel_backlight_power_on(struct dc_link *link,
2237 /* Set backlight level of an embedded panel (eDP, LVDS).
2238 * backlight_pwm_u16_16 is unsigned 32 bit with 16 bit integer
2239 * and 16 bit fractional, where 1.0 is max backlight value.
2241 bool dc_link_set_backlight_level(const struct dc_link *dc_link,
2242 struct set_backlight_level_params *backlight_level_params);
2244 /* Set/get nits-based backlight level of an embedded panel (eDP, LVDS). */
2245 bool dc_link_set_backlight_level_nits(struct dc_link *link,
2247 uint32_t backlight_millinits,
2248 uint32_t transition_time_in_ms);
2250 bool dc_link_get_backlight_level_nits(struct dc_link *link,
2251 uint32_t *backlight_millinits,
2252 uint32_t *backlight_millinits_peak);
2254 int dc_link_get_backlight_level(const struct dc_link *dc_link);
2256 int dc_link_get_target_backlight_pwm(const struct dc_link *link);
2258 bool dc_link_set_psr_allow_active(struct dc_link *dc_link, const bool *enable,
2259 bool wait, bool force_static, const unsigned int *power_opts);
2261 bool dc_link_get_psr_state(const struct dc_link *dc_link, enum dc_psr_state *state);
2263 bool dc_link_setup_psr(struct dc_link *dc_link,
2264 const struct dc_stream_state *stream, struct psr_config *psr_config,
2265 struct psr_context *psr_context);
2268 * Communicate with DMUB to allow or disallow Panel Replay on the specified link:
2270 * @link: pointer to the dc_link struct instance
2271 * @enable: enable(active) or disable(inactive) replay
2272 * @wait: state transition need to wait the active set completed.
2273 * @force_static: force disable(inactive) the replay
2274 * @power_opts: set power optimazation parameters to DMUB.
2276 * return: allow Replay active will return true, else will return false.
2278 bool dc_link_set_replay_allow_active(struct dc_link *dc_link, const bool *enable,
2279 bool wait, bool force_static, const unsigned int *power_opts);
2281 bool dc_link_get_replay_state(const struct dc_link *dc_link, uint64_t *state);
2283 /* On eDP links this function call will stall until T12 has elapsed.
2284 * If the panel is not in power off state, this function will return
2287 bool dc_link_wait_for_t12(struct dc_link *link);
2289 /* Determine if dp trace has been initialized to reflect upto date result *
2290 * return - true if trace is initialized and has valid data. False dp trace
2291 * doesn't have valid result.
2293 bool dc_dp_trace_is_initialized(struct dc_link *link);
2295 /* Query a dp trace flag to indicate if the current dp trace data has been
2298 bool dc_dp_trace_is_logged(struct dc_link *link,
2301 /* Set dp trace flag to indicate whether DM has already logged the current dp
2302 * trace data. DM can set is_logged to true upon logging and check
2303 * dc_dp_trace_is_logged before logging to avoid logging the same result twice.
2305 void dc_dp_trace_set_is_logged_flag(struct dc_link *link,
2309 /* Obtain driver time stamp for last dp link training end. The time stamp is
2310 * formatted based on dm_get_timestamp DM function.
2311 * @in_detection - true to get link training end time stamp of last link
2312 * training in detection sequence. false to get link training end time stamp
2313 * of last link training in commit (dpms) sequence
2315 unsigned long long dc_dp_trace_get_lt_end_timestamp(struct dc_link *link,
2318 /* Get how many link training attempts dc has done with latest sequence.
2319 * @in_detection - true to get link training count of last link
2320 * training in detection sequence. false to get link training count of last link
2321 * training in commit (dpms) sequence
2323 const struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link,
2326 /* Get how many link loss has happened since last link training attempts */
2327 unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link);
2330 * USB4 DPIA BW ALLOCATION PUBLIC FUNCTIONS
2333 * Send a request from DP-Tx requesting to allocate BW remotely after
2334 * allocating it locally. This will get processed by CM and a CB function
2337 * @link: pointer to the dc_link struct instance
2338 * @req_bw: The requested bw in Kbyte to allocated
2342 void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw);
2345 * Handle function for when the status of the Request above is complete.
2346 * We will find out the result of allocating on CM and update structs.
2348 * @link: pointer to the dc_link struct instance
2349 * @bw: Allocated or Estimated BW depending on the result
2350 * @result: Response type
2354 void dc_link_handle_usb4_bw_alloc_response(struct dc_link *link,
2355 uint8_t bw, uint8_t result);
2358 * Handle the USB4 BW Allocation related functionality here:
2359 * Plug => Try to allocate max bw from timing parameters supported by the sink
2360 * Unplug => de-allocate bw
2362 * @link: pointer to the dc_link struct instance
2363 * @peak_bw: Peak bw used by the link/sink
2365 * return: allocated bw else return 0
2367 int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link(
2368 struct dc_link *link, int peak_bw);
2371 * Validate the BW of all the valid DPIA links to make sure it doesn't exceed
2372 * available BW for each host router
2374 * @dc: pointer to dc struct
2375 * @stream: pointer to all possible streams
2376 * @count: number of valid DPIA streams
2378 * return: TRUE if bw used by DPIAs doesn't exceed available BW else return FALSE
2380 bool dc_link_dp_dpia_validate(struct dc *dc, const struct dc_stream_state *streams,
2381 const unsigned int count);
2383 /* Sink Interfaces - A sink corresponds to a display output device */
2385 struct dc_container_id {
2386 // 128bit GUID in binary form
2387 unsigned char guid[16];
2388 // 8 byte port ID -> ELD.PortID
2389 unsigned int portId[2];
2390 // 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
2391 unsigned short manufacturerName;
2392 // 2 byte product code -> ELD.ProductCode
2393 unsigned short productCode;
2397 struct dc_sink_dsc_caps {
2398 // 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
2399 // 'false' if they are sink's DSC caps
2400 bool is_virtual_dpcd_dsc;
2401 // 'true' if MST topology supports DSC passthrough for sink
2402 // 'false' if MST topology does not support DSC passthrough
2403 bool is_dsc_passthrough_supported;
2404 struct dsc_dec_dpcd_caps dsc_dec_caps;
2407 struct dc_sink_hblank_expansion_caps {
2408 // 'true' if these are virtual DPCD's HBlank expansion caps (immediately upstream of sink in MST topology),
2409 // 'false' if they are sink's HBlank expansion caps
2410 bool is_virtual_dpcd_hblank_expansion;
2411 struct hblank_expansion_dpcd_caps dpcd_caps;
2414 struct dc_sink_fec_caps {
2415 bool is_rx_fec_supported;
2416 bool is_topology_fec_supported;
2420 union hdmi_scdc_manufacturer_OUI_data manufacturer_OUI;
2421 union hdmi_scdc_device_id_data device_id;
2425 * The sink structure contains EDID and other display device properties
2428 enum signal_type sink_signal;
2429 struct dc_edid dc_edid; /* raw edid */
2430 struct dc_edid_caps edid_caps; /* parse display caps */
2431 struct dc_container_id *dc_container_id;
2432 uint32_t dongle_max_pix_clk;
2434 struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
2435 bool converter_disable_audio;
2437 struct scdc_caps scdc_caps;
2438 struct dc_sink_dsc_caps dsc_caps;
2439 struct dc_sink_fec_caps fec_caps;
2440 struct dc_sink_hblank_expansion_caps hblank_expansion_caps;
2442 bool is_vsc_sdp_colorimetry_supported;
2444 /* private to DC core */
2445 struct dc_link *link;
2446 struct dc_context *ctx;
2450 /* private to dc_sink.c */
2451 // refcount must be the last member in dc_sink, since we want the
2452 // sink structure to be logically cloneable up to (but not including)
2454 struct kref refcount;
2457 void dc_sink_retain(struct dc_sink *sink);
2458 void dc_sink_release(struct dc_sink *sink);
2460 struct dc_sink_init_data {
2461 enum signal_type sink_signal;
2462 struct dc_link *link;
2463 uint32_t dongle_max_pix_clk;
2464 bool converter_disable_audio;
2467 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
2469 /* Newer interfaces */
2471 struct dc_plane_address address;
2472 struct dc_cursor_attributes attributes;
2476 /* Interrupt interfaces */
2477 enum dc_irq_source dc_interrupt_to_irq_source(
2481 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
2482 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
2483 enum dc_irq_source dc_get_hpd_irq_source_at_index(
2484 struct dc *dc, uint32_t link_index);
2486 void dc_notify_vsync_int_state(struct dc *dc, struct dc_stream_state *stream, bool enable);
2488 /* Power Interfaces */
2490 void dc_set_power_state(
2492 enum dc_acpi_cm_power_state power_state);
2493 void dc_resume(struct dc *dc);
2495 void dc_power_down_on_boot(struct dc *dc);
2500 enum hdcp_message_status dc_process_hdcp_msg(
2501 enum signal_type signal,
2502 struct dc_link *link,
2503 struct hdcp_protection_message *message_info);
2504 bool dc_is_dmcu_initialized(struct dc *dc);
2506 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
2507 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
2509 bool dc_is_plane_eligible_for_idle_optimizations(struct dc *dc,
2511 unsigned int height,
2512 enum surface_pixel_format format,
2513 struct dc_cursor_attributes *cursor_attr);
2515 #define dc_allow_idle_optimizations(dc, allow) dc_allow_idle_optimizations_internal(dc, allow, __func__)
2516 #define dc_exit_ips_for_hw_access(dc) dc_exit_ips_for_hw_access_internal(dc, __func__)
2518 void dc_allow_idle_optimizations_internal(struct dc *dc, bool allow, const char *caller_name);
2519 void dc_exit_ips_for_hw_access_internal(struct dc *dc, const char *caller_name);
2520 bool dc_dmub_is_ips_idle_state(struct dc *dc);
2522 /* set min and max memory clock to lowest and highest DPM level, respectively */
2523 void dc_unlock_memory_clock_frequency(struct dc *dc);
2525 /* set min memory clock to the min required for current mode, max to maxDPM */
2526 void dc_lock_memory_clock_frequency(struct dc *dc);
2528 /* set soft max for memclk, to be used for AC/DC switching clock limitations */
2529 void dc_enable_dcmode_clk_limit(struct dc *dc, bool enable);
2531 /* cleanup on driver unload */
2532 void dc_hardware_release(struct dc *dc);
2534 /* disables fw based mclk switch */
2535 void dc_mclk_switch_using_fw_based_vblank_stretch_shut_down(struct dc *dc);
2537 bool dc_set_psr_allow_active(struct dc *dc, bool enable);
2539 bool dc_set_replay_allow_active(struct dc *dc, bool active);
2541 bool dc_set_ips_disable(struct dc *dc, unsigned int disable_ips);
2543 void dc_z10_restore(const struct dc *dc);
2544 void dc_z10_save_init(struct dc *dc);
2546 bool dc_is_dmub_outbox_supported(struct dc *dc);
2547 bool dc_enable_dmub_notifications(struct dc *dc);
2549 bool dc_abm_save_restore(
2551 struct dc_stream_state *stream,
2552 struct abm_save_restore *pData);
2554 void dc_enable_dmub_outbox(struct dc *dc);
2556 bool dc_process_dmub_aux_transfer_async(struct dc *dc,
2557 uint32_t link_index,
2558 struct aux_payload *payload);
2560 /* Get dc link index from dpia port index */
2561 uint8_t get_link_index_from_dpia_port_index(const struct dc *dc,
2562 uint8_t dpia_port_index);
2564 bool dc_process_dmub_set_config_async(struct dc *dc,
2565 uint32_t link_index,
2566 struct set_config_cmd_payload *payload,
2567 struct dmub_notification *notify);
2569 enum dc_status dc_process_dmub_set_mst_slots(const struct dc *dc,
2570 uint32_t link_index,
2571 uint8_t mst_alloc_slots,
2572 uint8_t *mst_slots_in_use);
2574 void dc_process_dmub_dpia_set_tps_notification(const struct dc *dc, uint32_t link_index, uint8_t tps);
2576 void dc_process_dmub_dpia_hpd_int_enable(const struct dc *dc,
2577 uint32_t hpd_int_enable);
2579 void dc_print_dmub_diagnostic_data(const struct dc *dc);
2581 void dc_query_current_properties(struct dc *dc, struct dc_current_properties *properties);
2583 struct dc_power_profile {
2584 int power_level; /* Lower is better */
2587 struct dc_power_profile dc_get_power_profile_for_dc_state(const struct dc_state *context);
2589 unsigned int dc_get_det_buffer_size_from_state(const struct dc_state *context);
2591 /* DSC Interfaces */
2594 /* Disable acc mode Interfaces */
2595 void dc_disable_accelerated_mode(struct dc *dc);
2597 bool dc_is_timing_changed(struct dc_stream_state *cur_stream,
2598 struct dc_stream_state *new_stream);
2600 #endif /* DC_INTERFACE_H_ */