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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11 * The above copyright notice and this permission notice shall be included in
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20 * OTHER DEALINGS IN THE SOFTWARE.
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 struct abm_save_restore;
51 /* forward declaration */
53 struct set_config_cmd_payload;
54 struct dmub_notification;
56 #define DC_VER "3.2.281"
58 #define MAX_SURFACES 3
61 #define MIN_VIEWPORT_SIZE 12
64 /* Display Core Interfaces */
67 struct dmcu_version dmcu_version;
70 enum dp_protocol_version {
77 DC_PLANE_TYPE_INVALID,
78 DC_PLANE_TYPE_DCE_RGB,
79 DC_PLANE_TYPE_DCE_UNDERLAY,
80 DC_PLANE_TYPE_DCN_UNIVERSAL,
83 // Sizes defined as multiples of 64KB
94 enum dc_plane_type type;
95 uint32_t per_pixel_alpha : 1;
97 uint32_t argb8888 : 1;
102 } pixel_format_support;
103 // max upscaling factor x1000
104 // upscaling factors are always >= 1
105 // for example, 1080p -> 8K is 4.0, or 4000 raw value
110 } max_upscale_factor;
111 // max downscale factor x1000
112 // downscale factors are always <= 1
113 // for example, 8K -> 1080p is 0.25, or 250 raw value
118 } max_downscale_factor;
119 // minimal width/height
125 * DOC: color-management-caps
127 * **Color management caps (DPP and MPC)**
129 * Modules/color calculates various color operations which are translated to
130 * abstracted HW. DCE 5-12 had almost no important changes, but starting with
131 * DCN1, every new generation comes with fairly major differences in color
132 * pipeline. Therefore, we abstract color pipe capabilities so modules/DM can
133 * decide mapping to HW block based on logical capabilities.
137 * struct rom_curve_caps - predefined transfer function caps for degamma and regamma
138 * @srgb: RGB color space transfer func
139 * @bt2020: BT.2020 transfer func
140 * @gamma2_2: standard gamma
141 * @pq: perceptual quantizer transfer function
142 * @hlg: hybrid log–gamma transfer function
144 struct rom_curve_caps {
147 uint16_t gamma2_2 : 1;
153 * struct dpp_color_caps - color pipeline capabilities for display pipe and
156 * @dcn_arch: all DCE generations treated the same
157 * @input_lut_shared: shared with DGAM. Input LUT is different than most LUTs,
158 * just plain 256-entry lookup
159 * @icsc: input color space conversion
160 * @dgam_ram: programmable degamma LUT
161 * @post_csc: post color space conversion, before gamut remap
162 * @gamma_corr: degamma correction
163 * @hw_3d_lut: 3D LUT support. It implies a shaper LUT before. It may be shared
164 * with MPC by setting mpc:shared_3d_lut flag
165 * @ogam_ram: programmable out/blend gamma LUT
166 * @ocsc: output color space conversion
167 * @dgam_rom_for_yuv: pre-defined degamma LUT for YUV planes
168 * @dgam_rom_caps: pre-definied curve caps for degamma 1D LUT
169 * @ogam_rom_caps: pre-definied curve caps for regamma 1D LUT
171 * Note: hdr_mult and gamut remap (CTM) are always available in DPP (in that order)
173 struct dpp_color_caps {
174 uint16_t dcn_arch : 1;
175 uint16_t input_lut_shared : 1;
177 uint16_t dgam_ram : 1;
178 uint16_t post_csc : 1;
179 uint16_t gamma_corr : 1;
180 uint16_t hw_3d_lut : 1;
181 uint16_t ogam_ram : 1;
183 uint16_t dgam_rom_for_yuv : 1;
184 struct rom_curve_caps dgam_rom_caps;
185 struct rom_curve_caps ogam_rom_caps;
189 * struct mpc_color_caps - color pipeline capabilities for multiple pipe and
190 * plane combined blocks
192 * @gamut_remap: color transformation matrix
193 * @ogam_ram: programmable out gamma LUT
194 * @ocsc: output color space conversion matrix
195 * @num_3dluts: MPC 3D LUT; always assumes a preceding shaper LUT
196 * @shared_3d_lut: shared 3D LUT flag. Can be either DPP or MPC, but single
198 * @ogam_rom_caps: pre-definied curve caps for regamma 1D LUT
200 struct mpc_color_caps {
201 uint16_t gamut_remap : 1;
202 uint16_t ogam_ram : 1;
204 uint16_t num_3dluts : 3;
205 uint16_t shared_3d_lut:1;
206 struct rom_curve_caps ogam_rom_caps;
210 * struct dc_color_caps - color pipes capabilities for DPP and MPC hw blocks
211 * @dpp: color pipes caps for DPP
212 * @mpc: color pipes caps for MPC
214 struct dc_color_caps {
215 struct dpp_color_caps dpp;
216 struct mpc_color_caps mpc;
219 struct dc_dmub_caps {
228 uint32_t max_streams;
231 uint32_t max_slave_planes;
232 uint32_t max_slave_yuv_planes;
233 uint32_t max_slave_rgb_planes;
235 uint32_t max_downscale_ratio;
236 uint32_t i2c_speed_in_khz;
237 uint32_t i2c_speed_in_khz_hdcp;
238 uint32_t dmdata_alloc_size;
239 unsigned int max_cursor_size;
240 unsigned int max_video_width;
242 * max video plane width that can be safely assumed to be always
243 * supported by single DPP pipe.
245 unsigned int max_optimizable_video_width;
246 unsigned int min_horizontal_blanking_period;
247 int linear_pitch_alignment;
248 bool dcc_const_color;
252 bool post_blend_color_processing;
253 bool force_dp_tps4_for_cp2520;
254 bool disable_dp_clk_share;
255 bool psp_setup_panel_mode;
256 bool extended_aux_timeout_support;
260 uint32_t num_of_internal_disp;
261 enum dp_protocol_version max_dp_protocol_version;
262 unsigned int mall_size_per_mem_channel;
263 unsigned int mall_size_total;
264 unsigned int cursor_cache_size;
265 struct dc_plane_cap planes[MAX_PLANES];
266 struct dc_color_caps color;
267 struct dc_dmub_caps dmub_caps;
269 bool dp_hdmi21_pcon_support;
270 bool edp_dsc_support;
271 bool vbios_lttpr_aware;
272 bool vbios_lttpr_enable;
273 uint32_t max_otg_num;
274 uint32_t max_cab_allocation_bytes;
275 uint32_t cache_line_size;
276 uint32_t cache_num_ways;
277 uint16_t subvp_fw_processing_delay_us;
278 uint8_t subvp_drr_max_vblank_margin_us;
279 uint16_t subvp_prefetch_end_to_mall_start_us;
280 uint8_t subvp_swath_height_margin_lines; // subvp start line must be aligned to 2 x swath height
281 uint16_t subvp_pstate_allow_width_us;
282 uint16_t subvp_vertical_int_margin_us;
284 uint32_t max_v_total;
285 uint32_t max_disp_clock_khz_at_vmin;
286 uint8_t subvp_drr_vblank_start_margin_us;
290 bool no_connect_phy_config;
292 bool skip_clock_update;
293 bool lt_early_cr_pattern;
298 uint8_t dcfclk_ds: 1;
299 } clock_update_disable_mask;
301 struct dc_dcc_surface_param {
302 struct dc_size surface_size;
303 enum surface_pixel_format format;
304 enum swizzle_mode_values swizzle_mode;
305 enum dc_scan_direction scan;
308 struct dc_dcc_setting {
309 unsigned int max_compressed_blk_size;
310 unsigned int max_uncompressed_blk_size;
311 bool independent_64b_blks;
312 //These bitfields to be used starting with DCN 3.0
314 uint32_t dcc_256_64_64 : 1;//available in ASICs before DCN 3.0 (the worst compression case)
315 uint32_t dcc_128_128_uncontrained : 1; //available in ASICs before DCN 3.0
316 uint32_t dcc_256_128_128 : 1; //available starting with DCN 3.0
317 uint32_t dcc_256_256_unconstrained : 1; //available in ASICs before DCN 3.0 (the best compression case)
321 struct dc_surface_dcc_cap {
324 struct dc_dcc_setting rgb;
328 struct dc_dcc_setting luma;
329 struct dc_dcc_setting chroma;
334 bool const_color_support;
337 struct dc_static_screen_params {
344 unsigned int num_frames;
348 /* Surface update type is used by dc_update_surfaces_and_stream
349 * The update type is determined at the very beginning of the function based
350 * on parameters passed in and decides how much programming (or updating) is
351 * going to be done during the call.
353 * UPDATE_TYPE_FAST is used for really fast updates that do not require much
354 * logical calculations or hardware register programming. This update MUST be
355 * ISR safe on windows. Currently fast update will only be used to flip surface
358 * UPDATE_TYPE_MED is used for slower updates which require significant hw
359 * re-programming however do not affect bandwidth consumption or clock
360 * requirements. At present, this is the level at which front end updates
361 * that do not require us to run bw_calcs happen. These are in/out transfer func
362 * updates, viewport offset changes, recout size changes and pixel depth changes.
363 * This update can be done at ISR, but we want to minimize how often this happens.
365 * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
366 * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
367 * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
368 * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
369 * a full update. This cannot be done at ISR level and should be a rare event.
370 * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
371 * underscan we don't expect to see this call at all.
374 enum surface_update_type {
375 UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
376 UPDATE_TYPE_MED, /* ISR safe, most of programming needed, no bw/clk change*/
377 UPDATE_TYPE_FULL, /* may need to shuffle resources */
380 /* Forward declaration*/
382 struct dc_plane_state;
386 struct dc_cap_funcs {
387 bool (*get_dcc_compression_cap)(const struct dc *dc,
388 const struct dc_dcc_surface_param *input,
389 struct dc_surface_dcc_cap *output);
390 bool (*get_subvp_en)(struct dc *dc, struct dc_state *context);
393 struct link_training_settings;
395 union allow_lttpr_non_transparent_mode {
403 /* Structure to hold configuration flags set by dm at dc creation. */
406 bool disable_disp_pll_sharing;
408 bool disable_fractional_pwm;
409 bool allow_seamless_boot_optimization;
410 bool seamless_boot_edp_requested;
411 bool edp_not_connected;
412 bool edp_no_power_sequencing;
415 union allow_lttpr_non_transparent_mode allow_lttpr_non_transparent_mode;
416 bool multi_mon_pp_mclk_switch;
419 bool enable_windowed_mpo_odm;
420 bool forceHBR2CP2520; // Used for switching between test patterns TPS4 and CP2520
421 uint32_t allow_edp_hotplug_detection;
422 bool clamp_min_dcfclk;
423 uint64_t vblank_alignment_dto_params;
424 uint8_t vblank_alignment_max_frame_time_diff;
425 bool is_asymmetric_memory;
426 bool is_single_rank_dimm;
427 bool is_vmin_only_asic;
428 bool use_pipe_ctx_sync_logic;
429 bool ignore_dpref_ss;
430 bool enable_mipi_converter_optimization;
431 bool use_default_clock_table;
432 bool force_bios_enable_lttpr;
433 uint8_t force_bios_fixed_vs;
434 int sdpif_request_limit_words_per_umc;
435 bool dc_mode_clk_limit_support;
436 bool EnableMinDispClkODM;
437 bool enable_auto_dpm_test_logs;
438 unsigned int disable_ips;
439 unsigned int disable_ips_in_vpb;
440 bool usb4_bw_alloc_support;
441 bool allow_0_dtb_clk;
442 bool use_assr_psp_message;
443 bool support_edp0_on_dp1;
446 enum visual_confirm {
447 VISUAL_CONFIRM_DISABLE = 0,
448 VISUAL_CONFIRM_SURFACE = 1,
449 VISUAL_CONFIRM_HDR = 2,
450 VISUAL_CONFIRM_MPCTREE = 4,
451 VISUAL_CONFIRM_PSR = 5,
452 VISUAL_CONFIRM_SWAPCHAIN = 6,
453 VISUAL_CONFIRM_FAMS = 7,
454 VISUAL_CONFIRM_SWIZZLE = 9,
455 VISUAL_CONFIRM_REPLAY = 12,
456 VISUAL_CONFIRM_SUBVP = 14,
457 VISUAL_CONFIRM_MCLK_SWITCH = 16,
460 enum dc_psr_power_opts {
461 psr_power_opt_invalid = 0x0,
462 psr_power_opt_smu_opt_static_screen = 0x1,
463 psr_power_opt_z10_static_screen = 0x10,
464 psr_power_opt_ds_disable_allow = 0x100,
467 enum dml_hostvm_override_opts {
468 DML_HOSTVM_NO_OVERRIDE = 0x0,
469 DML_HOSTVM_OVERRIDE_FALSE = 0x1,
470 DML_HOSTVM_OVERRIDE_TRUE = 0x2,
473 enum dc_replay_power_opts {
474 replay_power_opt_invalid = 0x0,
475 replay_power_opt_smu_opt_static_screen = 0x1,
476 replay_power_opt_z10_static_screen = 0x10,
482 DCC_HALF_REQ_DISALBE = 2,
486 * enum pipe_split_policy - Pipe split strategy supported by DCN
488 * This enum is used to define the pipe split policy supported by DCN. By
489 * default, DC favors MPC_SPLIT_DYNAMIC.
491 enum pipe_split_policy {
493 * @MPC_SPLIT_DYNAMIC: DC will automatically decide how to split the
494 * pipe in order to bring the best trade-off between performance and
495 * power consumption. This is the recommended option.
497 MPC_SPLIT_DYNAMIC = 0,
500 * @MPC_SPLIT_AVOID: Avoid pipe split, which means that DC will not
501 * try any sort of split optimization.
506 * @MPC_SPLIT_AVOID_MULT_DISP: With this option, DC will only try to
507 * optimize the pipe utilization when using a single display; if the
508 * user connects to a second display, DC will avoid pipe split.
510 MPC_SPLIT_AVOID_MULT_DISP = 2,
513 enum wm_report_mode {
514 WM_REPORT_DEFAULT = 0,
515 WM_REPORT_OVERRIDE = 1,
518 dtm_level_p0 = 0,/*highest voltage*/
522 dtm_level_p4,/*when active_display_count = 0*/
526 DCN_PWR_STATE_UNKNOWN = -1,
527 DCN_PWR_STATE_MISSION_MODE = 0,
528 DCN_PWR_STATE_LOW_POWER = 3,
531 enum dcn_zstate_support_state {
532 DCN_ZSTATE_SUPPORT_UNKNOWN,
533 DCN_ZSTATE_SUPPORT_ALLOW,
534 DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY,
535 DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY,
536 DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY,
537 DCN_ZSTATE_SUPPORT_DISALLOW,
541 * struct dc_clocks - DC pipe clocks
543 * For any clocks that may differ per pipe only the max is stored in this
548 int actual_dispclk_khz;
550 int actual_dppclk_khz;
551 int disp_dpp_voltage_level_khz;
554 int dcfclk_deep_sleep_khz;
558 bool p_state_change_support;
559 enum dcn_zstate_support_state zstate_support;
562 bool fclk_p_state_change_support;
563 enum dcn_pwr_state pwr_state;
565 * Elements below are not compared for the purposes of
566 * optimization required
568 bool prev_p_state_change_support;
569 bool fclk_prev_p_state_change_support;
573 * @fw_based_mclk_switching
575 * DC has a mechanism that leverage the variable refresh rate to switch
576 * memory clock in cases that we have a large latency to achieve the
577 * memory clock change and a short vblank window. DC has some
578 * requirements to enable this feature, and this field describes if the
579 * system support or not such a feature.
581 bool fw_based_mclk_switching;
582 bool fw_based_mclk_switching_shut_down;
584 enum dtm_pstate dtm_level;
585 int max_supported_dppclk_khz;
586 int max_supported_dispclk_khz;
587 int bw_dppclk_khz; /*a copy of dppclk_khz*/
591 struct dc_bw_validation_profile {
594 unsigned long long total_ticks;
595 unsigned long long voltage_level_ticks;
596 unsigned long long watermark_ticks;
597 unsigned long long rq_dlg_ticks;
599 unsigned long long total_count;
600 unsigned long long skip_fast_count;
601 unsigned long long skip_pass_count;
602 unsigned long long skip_fail_count;
605 #define BW_VAL_TRACE_SETUP() \
606 unsigned long long end_tick = 0; \
607 unsigned long long voltage_level_tick = 0; \
608 unsigned long long watermark_tick = 0; \
609 unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
610 dm_get_timestamp(dc->ctx) : 0
612 #define BW_VAL_TRACE_COUNT() \
613 if (dc->debug.bw_val_profile.enable) \
614 dc->debug.bw_val_profile.total_count++
616 #define BW_VAL_TRACE_SKIP(status) \
617 if (dc->debug.bw_val_profile.enable) { \
618 if (!voltage_level_tick) \
619 voltage_level_tick = dm_get_timestamp(dc->ctx); \
620 dc->debug.bw_val_profile.skip_ ## status ## _count++; \
623 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
624 if (dc->debug.bw_val_profile.enable) \
625 voltage_level_tick = dm_get_timestamp(dc->ctx)
627 #define BW_VAL_TRACE_END_WATERMARKS() \
628 if (dc->debug.bw_val_profile.enable) \
629 watermark_tick = dm_get_timestamp(dc->ctx)
631 #define BW_VAL_TRACE_FINISH() \
632 if (dc->debug.bw_val_profile.enable) { \
633 end_tick = dm_get_timestamp(dc->ctx); \
634 dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
635 dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
636 if (watermark_tick) { \
637 dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
638 dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
642 union mem_low_power_enable_options {
657 union root_clock_optimization_options {
669 uint32_t reserved: 22;
674 union fine_grain_clock_gating_enable_options {
676 bool dccg_global_fgcg_rep : 1; /* Global fine grain clock gating of repeaters */
677 bool dchub : 1; /* Display controller hub */
679 bool dpp : 1; /* Display pipes and planes */
680 bool opp : 1; /* Output pixel processing */
681 bool optc : 1; /* Output pipe timing combiner */
682 bool dio : 1; /* Display output */
683 bool dwb : 1; /* Display writeback */
684 bool mmhubbub : 1; /* Multimedia hub */
685 bool dmu : 1; /* Display core management unit */
686 bool az : 1; /* Azalia */
688 bool dsc : 1; /* Display stream compression */
690 uint32_t reserved : 19;
695 enum pg_hw_pipe_resources {
704 PG_HW_PIPE_RESOURCES_NUM_ELEMENT
707 enum pg_hw_resources {
715 PG_HW_RESOURCES_NUM_ELEMENT
718 struct pg_block_update {
719 bool pg_pipe_res_update[PG_HW_PIPE_RESOURCES_NUM_ELEMENT][MAX_PIPES];
720 bool pg_res_update[PG_HW_RESOURCES_NUM_ELEMENT];
723 union dpia_debug_options {
725 uint32_t disable_dpia:1; /* bit 0 */
726 uint32_t force_non_lttpr:1; /* bit 1 */
727 uint32_t extend_aux_rd_interval:1; /* bit 2 */
728 uint32_t disable_mst_dsc_work_around:1; /* bit 3 */
729 uint32_t enable_force_tbt3_work_around:1; /* bit 4 */
730 uint32_t reserved:27;
735 /* AUX wake work around options
736 * 0: enable/disable work around
737 * 1: use default timeout LINK_AUX_WAKE_TIMEOUT_MS
739 * 31-16: timeout in ms
741 union aux_wake_wa_options {
743 uint32_t enable_wa : 1;
744 uint32_t use_default_timeout : 1;
746 uint32_t timeout_ms : 16;
751 struct dc_debug_data {
752 uint32_t ltFailCount;
753 uint32_t i2cErrorCount;
754 uint32_t auxErrorCount;
757 struct dc_phy_addr_space_config {
770 uint64_t page_table_start_addr;
771 uint64_t page_table_end_addr;
772 uint64_t page_table_base_addr;
773 bool base_addr_is_mc_addr;
778 uint64_t page_table_default_page_addr;
781 struct dc_virtual_addr_space_config {
782 uint64_t page_table_base_addr;
783 uint64_t page_table_start_addr;
784 uint64_t page_table_end_addr;
785 uint32_t page_table_block_size_in_bytes;
786 uint8_t page_table_depth; // 1 = 1 level, 2 = 2 level, etc. 0 = invalid
789 struct dc_bounding_box_overrides {
791 int sr_enter_plus_exit_time_ns;
792 int sr_exit_z8_time_ns;
793 int sr_enter_plus_exit_z8_time_ns;
794 int urgent_latency_ns;
795 int percent_of_ideal_drambw;
796 int dram_clock_change_latency_ns;
797 int dummy_clock_change_latency_ns;
798 int fclk_clock_change_latency_ns;
799 /* This forces a hard min on the DCFCLK we use
800 * for DML. Unlike the debug option for forcing
801 * DCFCLK, this override affects watermark calculations
807 struct resource_pool;
812 * struct dc_debug_options - DC debug struct
814 * This struct provides a simple mechanism for developers to change some
815 * configurations, enable/disable features, and activate extra debug options.
816 * This can be very handy to narrow down whether some specific feature is
817 * causing an issue or not.
819 struct dc_debug_options {
820 bool native422_support;
822 enum visual_confirm visual_confirm;
823 int visual_confirm_rect_height;
830 bool validation_trace;
831 bool bandwidth_calcs_trace;
832 int max_downscale_src_width;
834 /* stutter efficiency related */
835 bool disable_stutter;
837 enum dcc_option disable_dcc;
840 * @pipe_split_policy: Define which pipe split policy is used by the
843 enum pipe_split_policy pipe_split_policy;
844 bool force_single_disp_pipe_split;
845 bool voltage_align_fclk;
846 bool disable_min_fclk;
848 bool disable_dfs_bypass;
849 bool disable_dpp_power_gate;
850 bool disable_hubp_power_gate;
851 bool disable_dsc_power_gate;
852 bool disable_optc_power_gate;
853 bool disable_hpo_power_gate;
854 int dsc_min_slice_height_override;
855 int dsc_bpp_increment_div;
856 bool disable_pplib_wm_range;
857 enum wm_report_mode pplib_wm_report_mode;
858 unsigned int min_disp_clk_khz;
859 unsigned int min_dpp_clk_khz;
860 unsigned int min_dram_clk_khz;
861 int sr_exit_time_dpm0_ns;
862 int sr_enter_plus_exit_time_dpm0_ns;
864 int sr_enter_plus_exit_time_ns;
865 int sr_exit_z8_time_ns;
866 int sr_enter_plus_exit_z8_time_ns;
867 int urgent_latency_ns;
868 uint32_t underflow_assert_delay_us;
869 int percent_of_ideal_drambw;
870 int dram_clock_change_latency_ns;
871 bool optimized_watermark;
873 bool disable_pplib_clock_request;
874 bool disable_clock_gate;
875 bool disable_mem_low_power;
878 bool force_abm_enable;
879 bool disable_stereo_support;
881 bool performance_trace;
882 bool az_endpoint_mute_only;
883 bool always_use_regamma;
884 bool recovery_enabled;
885 bool avoid_vbios_exec_table;
886 bool scl_reset_length10;
888 bool skip_detection_link_training;
889 uint32_t edid_read_retry_times;
890 unsigned int force_odm_combine; //bit vector based on otg inst
891 unsigned int seamless_boot_odm_combine;
892 unsigned int force_odm_combine_4to1; //bit vector based on otg inst
893 int minimum_z8_residency_time;
894 int minimum_z10_residency_time;
896 unsigned int force_fclk_khz;
898 bool dmub_offload_enabled;
899 bool dmcub_emulation;
900 bool disable_idle_power_optimizations;
901 unsigned int mall_size_override;
902 unsigned int mall_additional_timer_percent;
903 bool mall_error_as_fatal;
904 bool dmub_command_table; /* for testing only */
905 struct dc_bw_validation_profile bw_val_profile;
907 bool disable_48mhz_pwrdwn;
908 /* This forces a hard min on the DCFCLK requested to SMU/PP
909 * watermarks are not affected.
911 unsigned int force_min_dcfclk_mhz;
913 bool disable_timing_sync;
915 int force_clock_mode;/*every mode change.*/
917 bool disable_dram_clock_change_vactive_support;
918 bool validate_dml_output;
919 bool enable_dmcub_surface_flip;
920 bool usbc_combo_phy_reset_wa;
921 bool enable_dram_clock_change_one_display_vactive;
922 /* TODO - remove once tested */
924 bool set_mst_en_for_sst;
926 bool force_dp2_lt_fallback_method;
927 bool ignore_cable_id;
928 union mem_low_power_enable_options enable_mem_low_power;
929 union root_clock_optimization_options root_clock_optimization;
930 union fine_grain_clock_gating_enable_options enable_fine_grain_clock_gating;
931 bool hpo_optimization;
932 bool force_vblank_alignment;
934 /* Enable dmub aux for legacy ddc */
935 bool enable_dmub_aux_for_legacy_ddc;
937 bool disable_fams_gaming;
938 /* FEC/PSR1 sequence enable delay in 100us */
939 uint8_t fec_enable_delay_in100us;
940 bool enable_driver_sequence_debug;
941 enum det_size crb_alloc_policy;
942 int crb_alloc_policy_min_disp_count;
944 bool enable_z9_disable_interface;
945 bool psr_skip_crtc_disable;
946 union dpia_debug_options dpia_debug;
947 bool disable_fixed_vs_aux_timeout_wa;
948 uint32_t fixed_vs_aux_delay_config_wa;
949 bool force_disable_subvp;
950 bool force_subvp_mclk_switch;
951 bool allow_sw_cursor_fallback;
952 unsigned int force_subvp_num_ways;
953 unsigned int force_mall_ss_num_ways;
954 bool alloc_extra_way_for_cursor;
955 uint32_t subvp_extra_lines;
956 bool force_usr_allow;
957 /* uses value at boot and disables switch */
958 bool disable_dtb_ref_clk_switch;
959 bool extended_blank_optimization;
960 union aux_wake_wa_options aux_wake_wa;
961 uint32_t mst_start_top_delay;
962 uint8_t psr_power_use_phy_fsm;
963 enum dml_hostvm_override_opts dml_hostvm_override;
964 bool dml_disallow_alternate_prefetch_modes;
965 bool use_legacy_soc_bb_mechanism;
966 bool exit_idle_opt_for_cursor_updates;
968 bool enable_single_display_2to1_odm_policy;
969 bool enable_double_buffered_dsc_pg_support;
970 bool enable_dp_dig_pixel_rate_div_policy;
971 enum lttpr_mode lttpr_mode_override;
972 unsigned int dsc_delay_factor_wa_x1000;
973 unsigned int min_prefetch_in_strobe_ns;
974 bool disable_unbounded_requesting;
975 bool dig_fifo_off_in_blank;
976 bool override_dispclk_programming;
978 bool disallow_dispclk_dppclk_ds;
979 bool disable_fpo_optimizations;
981 uint32_t fpo_vactive_margin_us;
982 bool disable_fpo_vactive;
983 bool disable_boot_optimizations;
984 bool override_odm_optimization;
985 bool minimize_dispclk_using_odm;
986 bool disable_subvp_high_refresh;
987 bool disable_dp_plus_plus_wa;
988 uint32_t fpo_vactive_min_active_margin_us;
989 uint32_t fpo_vactive_max_blank_us;
990 bool enable_hpo_pg_support;
991 bool enable_legacy_fast_update;
992 bool disable_dc_mode_overwrite;
993 bool replay_skip_crtc_disabled;
994 bool ignore_pg;/*do nothing, let pmfw control it*/
995 bool psp_disabled_wa;
996 unsigned int ips2_eval_delay_us;
997 unsigned int ips2_entry_delay_us;
998 bool optimize_ips_handshake;
999 bool disable_dmub_reallow_idle;
1000 bool disable_timeout;
1001 bool disable_extblankadj;
1002 bool enable_idle_reg_checks;
1003 unsigned int static_screen_wait_frames;
1004 bool force_chroma_subsampling_1tap;
1005 bool disable_422_left_edge_pixel;
1006 unsigned int force_cositing;
1010 /* Generic structure that can be used to query properties of DC. More fields
1011 * can be added as required.
1013 struct dc_current_properties {
1014 unsigned int cursor_size_limit;
1017 enum frame_buffer_mode {
1018 FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
1019 FRAME_BUFFER_MODE_ZFB_ONLY,
1020 FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
1023 struct dchub_init_data {
1024 int64_t zfb_phys_addr_base;
1025 int64_t zfb_mc_base_addr;
1026 uint64_t zfb_size_in_byte;
1027 enum frame_buffer_mode fb_mode;
1028 bool dchub_initialzied;
1029 bool dchub_info_valid;
1032 struct dc_init_data {
1033 struct hw_asic_id asic_id;
1034 void *driver; /* ctx */
1035 struct cgs_device *cgs_device;
1036 struct dc_bounding_box_overrides bb_overrides;
1038 int num_virtual_links;
1040 * If 'vbios_override' not NULL, it will be called instead
1041 * of the real VBIOS. Intended use is Diagnostics on FPGA.
1043 struct dc_bios *vbios_override;
1044 enum dce_environment dce_environment;
1046 struct dmub_offload_funcs *dmub_if;
1047 struct dc_reg_helper_state *dmub_offload;
1049 struct dc_config flags;
1052 struct dpcd_vendor_signature vendor_signature;
1053 bool force_smu_not_present;
1055 * IP offset for run time initializaion of register addresses
1057 * DCN3.5+ will fail dc_create() if these fields are null for them. They are
1058 * applicable starting with DCN32/321 and are not used for ASICs upstreamed
1061 uint32_t *dcn_reg_offsets;
1062 uint32_t *nbio_reg_offsets;
1063 uint32_t *clk_reg_offsets;
1066 struct dc_callback_init {
1067 struct cp_psp cp_psp;
1070 struct dc *dc_create(const struct dc_init_data *init_params);
1071 void dc_hardware_init(struct dc *dc);
1073 int dc_get_vmid_use_vector(struct dc *dc);
1074 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
1075 /* Returns the number of vmids supported */
1076 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
1077 void dc_init_callbacks(struct dc *dc,
1078 const struct dc_callback_init *init_params);
1079 void dc_deinit_callbacks(struct dc *dc);
1080 void dc_destroy(struct dc **dc);
1082 /* Surface Interfaces */
1085 TRANSFER_FUNC_POINTS = 1025
1088 struct dc_hdr_static_metadata {
1089 /* display chromaticities and white point in units of 0.00001 */
1090 unsigned int chromaticity_green_x;
1091 unsigned int chromaticity_green_y;
1092 unsigned int chromaticity_blue_x;
1093 unsigned int chromaticity_blue_y;
1094 unsigned int chromaticity_red_x;
1095 unsigned int chromaticity_red_y;
1096 unsigned int chromaticity_white_point_x;
1097 unsigned int chromaticity_white_point_y;
1099 uint32_t min_luminance;
1100 uint32_t max_luminance;
1101 uint32_t maximum_content_light_level;
1102 uint32_t maximum_frame_average_light_level;
1105 enum dc_transfer_func_type {
1107 TF_TYPE_DISTRIBUTED_POINTS,
1112 struct dc_transfer_func_distributed_points {
1113 struct fixed31_32 red[TRANSFER_FUNC_POINTS];
1114 struct fixed31_32 green[TRANSFER_FUNC_POINTS];
1115 struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
1117 uint16_t end_exponent;
1118 uint16_t x_point_at_y1_red;
1119 uint16_t x_point_at_y1_green;
1120 uint16_t x_point_at_y1_blue;
1123 enum dc_transfer_func_predefined {
1124 TRANSFER_FUNCTION_SRGB,
1125 TRANSFER_FUNCTION_BT709,
1126 TRANSFER_FUNCTION_PQ,
1127 TRANSFER_FUNCTION_LINEAR,
1128 TRANSFER_FUNCTION_UNITY,
1129 TRANSFER_FUNCTION_HLG,
1130 TRANSFER_FUNCTION_HLG12,
1131 TRANSFER_FUNCTION_GAMMA22,
1132 TRANSFER_FUNCTION_GAMMA24,
1133 TRANSFER_FUNCTION_GAMMA26
1137 struct dc_transfer_func {
1138 struct kref refcount;
1139 enum dc_transfer_func_type type;
1140 enum dc_transfer_func_predefined tf;
1141 /* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
1142 uint32_t sdr_ref_white_level;
1144 struct pwl_params pwl;
1145 struct dc_transfer_func_distributed_points tf_pts;
1150 union dc_3dlut_state {
1152 uint32_t initialized:1; /*if 3dlut is went through color module for initialization */
1153 uint32_t rmu_idx_valid:1; /*if mux settings are valid*/
1154 uint32_t rmu_mux_num:3; /*index of mux to use*/
1155 uint32_t mpc_rmu0_mux:4; /*select mpcc on mux, one of the following : mpcc0, mpcc1, mpcc2, mpcc3*/
1156 uint32_t mpc_rmu1_mux:4;
1157 uint32_t mpc_rmu2_mux:4;
1158 uint32_t reserved:15;
1165 struct kref refcount;
1166 struct tetrahedral_params lut_3d;
1167 struct fixed31_32 hdr_multiplier;
1168 union dc_3dlut_state state;
1171 * This structure is filled in by dc_surface_get_status and contains
1172 * the last requested address and the currently active address so the called
1173 * can determine if there are any outstanding flips
1175 struct dc_plane_status {
1176 struct dc_plane_address requested_address;
1177 struct dc_plane_address current_address;
1178 bool is_flip_pending;
1182 union surface_update_flags {
1185 uint32_t addr_update:1;
1186 /* Medium updates */
1187 uint32_t dcc_change:1;
1188 uint32_t color_space_change:1;
1189 uint32_t horizontal_mirror_change:1;
1190 uint32_t per_pixel_alpha_change:1;
1191 uint32_t global_alpha_change:1;
1192 uint32_t hdr_mult:1;
1193 uint32_t rotation_change:1;
1194 uint32_t swizzle_change:1;
1195 uint32_t scaling_change:1;
1196 uint32_t clip_size_change: 1;
1197 uint32_t position_change:1;
1198 uint32_t in_transfer_func_change:1;
1199 uint32_t input_csc_change:1;
1200 uint32_t coeff_reduction_change:1;
1201 uint32_t output_tf_change:1;
1202 uint32_t pixel_format_change:1;
1203 uint32_t plane_size_change:1;
1204 uint32_t gamut_remap_change:1;
1207 uint32_t new_plane:1;
1208 uint32_t bpp_change:1;
1209 uint32_t gamma_change:1;
1210 uint32_t bandwidth_change:1;
1211 uint32_t clock_change:1;
1212 uint32_t stereo_format_change:1;
1214 uint32_t tmz_changed:1;
1215 uint32_t full_update:1;
1221 #define DC_REMOVE_PLANE_POINTERS 1
1223 struct dc_plane_state {
1224 struct dc_plane_address address;
1225 struct dc_plane_flip_time time;
1226 bool triplebuffer_flips;
1227 struct scaling_taps scaling_quality;
1228 struct rect src_rect;
1229 struct rect dst_rect;
1230 struct rect clip_rect;
1232 struct plane_size plane_size;
1233 union dc_tiling_info tiling_info;
1235 struct dc_plane_dcc_param dcc;
1237 struct dc_gamma gamma_correction;
1238 struct dc_transfer_func in_transfer_func;
1239 struct dc_bias_and_scale *bias_and_scale;
1240 struct dc_csc_transform input_csc_color_matrix;
1241 struct fixed31_32 coeff_reduction_factor;
1242 struct fixed31_32 hdr_mult;
1243 struct colorspace_transform gamut_remap_matrix;
1245 // TODO: No longer used, remove
1246 struct dc_hdr_static_metadata hdr_static_ctx;
1248 enum dc_color_space color_space;
1250 struct dc_3dlut lut3d_func;
1251 struct dc_transfer_func in_shaper_func;
1252 struct dc_transfer_func blend_tf;
1254 struct dc_transfer_func *gamcor_tf;
1255 enum surface_pixel_format format;
1256 enum dc_rotation_angle rotation;
1257 enum plane_stereo_format stereo_format;
1259 bool is_tiling_rotated;
1260 bool per_pixel_alpha;
1261 bool pre_multiplied_alpha;
1263 int global_alpha_value;
1265 bool flip_immediate;
1266 bool horizontal_mirror;
1269 union surface_update_flags update_flags;
1270 bool flip_int_enabled;
1271 bool skip_manual_trigger;
1273 /* private to DC core */
1274 struct dc_plane_status status;
1275 struct dc_context *ctx;
1277 /* HACK: Workaround for forcing full reprogramming under some conditions */
1278 bool force_full_update;
1280 bool is_phantom; // TODO: Change mall_stream_config into mall_plane_config instead
1282 /* private to dc_surface.c */
1283 enum dc_irq_source irq_source;
1284 struct kref refcount;
1285 struct tg_color visual_confirm_color;
1287 bool is_statically_allocated;
1288 enum chroma_cositing cositing;
1291 struct dc_plane_info {
1292 struct plane_size plane_size;
1293 union dc_tiling_info tiling_info;
1294 struct dc_plane_dcc_param dcc;
1295 enum surface_pixel_format format;
1296 enum dc_rotation_angle rotation;
1297 enum plane_stereo_format stereo_format;
1298 enum dc_color_space color_space;
1299 bool horizontal_mirror;
1301 bool per_pixel_alpha;
1302 bool pre_multiplied_alpha;
1304 int global_alpha_value;
1305 bool input_csc_enabled;
1307 enum chroma_cositing cositing;
1310 #include "dc_stream.h"
1312 struct dc_scratch_space {
1313 /* used to temporarily backup plane states of a stream during
1314 * dc update. The reason is that plane states are overwritten
1315 * with surface updates in dc update. Once they are overwritten
1316 * current state is no longer valid. We want to temporarily
1317 * store current value in plane states so we can still recover
1318 * a valid current state during dc update.
1320 struct dc_plane_state plane_states[MAX_SURFACE_NUM];
1322 struct dc_stream_state stream_state;
1326 struct dc_debug_options debug;
1327 struct dc_versions versions;
1328 struct dc_caps caps;
1329 struct dc_cap_funcs cap_funcs;
1330 struct dc_config config;
1331 struct dc_bounding_box_overrides bb_overrides;
1332 struct dc_bug_wa work_arounds;
1333 struct dc_context *ctx;
1334 struct dc_phy_addr_space_config vm_pa_config;
1337 struct dc_link *links[MAX_LINKS];
1338 struct link_service *link_srv;
1340 struct dc_state *current_state;
1341 struct resource_pool *res_pool;
1343 struct clk_mgr *clk_mgr;
1345 /* Display Engine Clock levels */
1346 struct dm_pp_clock_levels sclk_lvls;
1348 /* Inputs into BW and WM calculations. */
1349 struct bw_calcs_dceip *bw_dceip;
1350 struct bw_calcs_vbios *bw_vbios;
1351 struct dcn_soc_bounding_box *dcn_soc;
1352 struct dcn_ip_params *dcn_ip;
1353 struct display_mode_lib dml;
1356 struct hw_sequencer_funcs hwss;
1357 struct dce_hwseq *hwseq;
1359 /* Require to optimize clocks and bandwidth for added/removed planes */
1360 bool optimized_required;
1361 bool wm_optimized_required;
1362 bool idle_optimizations_allowed;
1363 bool enable_c20_dtm_b0;
1365 /* Require to maintain clocks and bandwidth for UEFI enabled HW */
1367 /* FBC compressor */
1368 struct compressor *fbc_compressor;
1370 struct dc_debug_data debug_data;
1371 struct dpcd_vendor_signature vendor_signature;
1373 const char *build_id;
1374 struct vm_helper *vm_helper;
1376 uint32_t *dcn_reg_offsets;
1377 uint32_t *nbio_reg_offsets;
1378 uint32_t *clk_reg_offsets;
1380 /* Scratch memory */
1384 * For matching clock_limits table in driver with table
1387 struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES];
1388 } update_bw_bounding_box;
1389 struct dc_scratch_space current_state;
1390 struct dc_scratch_space new_state;
1391 struct dc_stream_state temp_stream; // Used so we don't need to allocate stream on the stack
1394 struct dml2_configuration_options dml2_options;
1395 enum dc_acpi_cm_power_state power_state;
1399 struct dc_scaling_info {
1400 struct rect src_rect;
1401 struct rect dst_rect;
1402 struct rect clip_rect;
1403 struct scaling_taps scaling_quality;
1406 struct dc_fast_update {
1407 const struct dc_flip_addrs *flip_addr;
1408 const struct dc_gamma *gamma;
1409 const struct colorspace_transform *gamut_remap_matrix;
1410 const struct dc_csc_transform *input_csc_color_matrix;
1411 const struct fixed31_32 *coeff_reduction_factor;
1412 struct dc_transfer_func *out_transfer_func;
1413 struct dc_csc_transform *output_csc_transform;
1416 struct dc_surface_update {
1417 struct dc_plane_state *surface;
1419 /* isr safe update parameters. null means no updates */
1420 const struct dc_flip_addrs *flip_addr;
1421 const struct dc_plane_info *plane_info;
1422 const struct dc_scaling_info *scaling_info;
1423 struct fixed31_32 hdr_mult;
1424 /* following updates require alloc/sleep/spin that is not isr safe,
1425 * null means no updates
1427 const struct dc_gamma *gamma;
1428 const struct dc_transfer_func *in_transfer_func;
1430 const struct dc_csc_transform *input_csc_color_matrix;
1431 const struct fixed31_32 *coeff_reduction_factor;
1432 const struct dc_transfer_func *func_shaper;
1433 const struct dc_3dlut *lut3d_func;
1434 const struct dc_transfer_func *blend_tf;
1435 const struct colorspace_transform *gamut_remap_matrix;
1439 * Create a new surface with default parameters;
1441 void dc_gamma_retain(struct dc_gamma *dc_gamma);
1442 void dc_gamma_release(struct dc_gamma **dc_gamma);
1443 struct dc_gamma *dc_create_gamma(void);
1445 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
1446 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
1447 struct dc_transfer_func *dc_create_transfer_func(void);
1449 struct dc_3dlut *dc_create_3dlut_func(void);
1450 void dc_3dlut_func_release(struct dc_3dlut *lut);
1451 void dc_3dlut_func_retain(struct dc_3dlut *lut);
1453 void dc_post_update_surfaces_to_stream(
1456 #include "dc_stream.h"
1459 * struct dc_validation_set - Struct to store surface/stream associations for validation
1461 struct dc_validation_set {
1463 * @stream: Stream state properties
1465 struct dc_stream_state *stream;
1468 * @plane_states: Surface state
1470 struct dc_plane_state *plane_states[MAX_SURFACES];
1473 * @plane_count: Total of active planes
1475 uint8_t plane_count;
1478 bool dc_validate_boot_timing(const struct dc *dc,
1479 const struct dc_sink *sink,
1480 struct dc_crtc_timing *crtc_timing);
1482 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
1484 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
1486 enum dc_status dc_validate_with_context(struct dc *dc,
1487 const struct dc_validation_set set[],
1489 struct dc_state *context,
1490 bool fast_validate);
1492 bool dc_set_generic_gpio_for_stereo(bool enable,
1493 struct gpio_service *gpio_service);
1496 * fast_validate: we return after determining if we can support the new state,
1497 * but before we populate the programming info
1499 enum dc_status dc_validate_global_state(
1501 struct dc_state *new_ctx,
1502 bool fast_validate);
1504 bool dc_acquire_release_mpc_3dlut(
1505 struct dc *dc, bool acquire,
1506 struct dc_stream_state *stream,
1507 struct dc_3dlut **lut,
1508 struct dc_transfer_func **shaper);
1510 bool dc_resource_is_dsc_encoding_supported(const struct dc *dc);
1511 void get_audio_check(struct audio_info *aud_modes,
1512 struct audio_check *aud_chk);
1514 * Set up streams and links associated to drive sinks
1515 * The streams parameter is an absolute set of all active streams.
1518 * Phy, Encoder, Timing Generator are programmed and enabled.
1519 * New streams are enabled with blank stream; no memory read.
1521 enum dc_status dc_commit_streams(struct dc *dc, struct dc_commit_streams_params *params);
1524 struct dc_plane_state *dc_get_surface_for_mpcc(struct dc *dc,
1525 struct dc_stream_state *stream,
1529 uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane);
1531 void dc_set_disable_128b_132b_stream_overhead(bool disable);
1533 /* The function returns minimum bandwidth required to drive a given timing
1534 * return - minimum required timing bandwidth in kbps.
1536 uint32_t dc_bandwidth_in_kbps_from_timing(
1537 const struct dc_crtc_timing *timing,
1538 const enum dc_link_encoding_format link_encoding);
1540 /* Link Interfaces */
1542 * A link contains one or more sinks and their connected status.
1543 * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported.
1546 struct dc_sink *remote_sinks[MAX_SINKS_PER_LINK];
1547 unsigned int sink_count;
1548 struct dc_sink *local_sink;
1549 unsigned int link_index;
1550 enum dc_connection_type type;
1551 enum signal_type connector_signal;
1552 enum dc_irq_source irq_source_hpd;
1553 enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */
1555 bool is_hpd_filter_disabled;
1559 * @link_state_valid:
1561 * If there is no link and local sink, this variable should be set to
1562 * false. Otherwise, it should be set to true; usually, the function
1563 * core_link_enable_stream sets this field to true.
1565 bool link_state_valid;
1566 bool aux_access_disabled;
1567 bool sync_lt_in_progress;
1568 bool skip_stream_reenable;
1569 bool is_internal_display;
1570 /** @todo Rename. Flag an endpoint as having a programmable mapping to a DIG encoder. */
1571 bool is_dig_mapping_flexible;
1572 bool hpd_status; /* HPD status of link without physical HPD pin. */
1573 bool is_hpd_pending; /* Indicates a new received hpd */
1575 /* USB4 DPIA links skip verifying link cap, instead performing the fallback method
1576 * for every link training. This is incompatible with DP LL compliance automation,
1577 * which expects the same link settings to be used every retry on a link loss.
1578 * This flag is used to skip the fallback when link loss occurs during automation.
1580 bool skip_fallback_on_link_loss;
1582 bool edp_sink_present;
1584 struct dp_trace dp_trace;
1586 /* caps is the same as reported_link_cap. link_traing use
1587 * reported_link_cap. Will clean up. TODO
1589 struct dc_link_settings reported_link_cap;
1590 struct dc_link_settings verified_link_cap;
1591 struct dc_link_settings cur_link_settings;
1592 struct dc_lane_settings cur_lane_setting[LANE_COUNT_DP_MAX];
1593 struct dc_link_settings preferred_link_setting;
1594 /* preferred_training_settings are override values that
1595 * come from DM. DM is responsible for the memory
1596 * management of the override pointers.
1598 struct dc_link_training_overrides preferred_training_settings;
1599 struct dp_audio_test_data audio_test_data;
1601 uint8_t ddc_hw_inst;
1605 uint8_t link_enc_hw_inst;
1606 /* DIG link encoder ID. Used as index in link encoder resource pool.
1607 * For links with fixed mapping to DIG, this is not changed after dc_link
1610 enum engine_id eng_id;
1611 enum engine_id dpia_preferred_eng_id;
1613 bool test_pattern_enabled;
1614 /* Pending/Current test pattern are only used to perform and track
1615 * FIXED_VS retimer test pattern/lane adjustment override state.
1616 * Pending allows link HWSS to differentiate PHY vs non-PHY pattern,
1617 * to perform specific lane adjust overrides before setting certain
1618 * PHY test patterns. In cases when lane adjust and set test pattern
1619 * calls are not performed atomically (i.e. performing link training),
1620 * pending_test_pattern will be invalid or contain a non-PHY test pattern
1621 * and current_test_pattern will contain required context for any future
1622 * set pattern/set lane adjust to transition between override state(s).
1624 enum dp_test_pattern current_test_pattern;
1625 enum dp_test_pattern pending_test_pattern;
1627 union compliance_test_state compliance_test_state;
1631 struct ddc_service *ddc;
1633 enum dp_panel_mode panel_mode;
1636 /* Private to DC core */
1638 const struct dc *dc;
1640 struct dc_context *ctx;
1642 struct panel_cntl *panel_cntl;
1643 struct link_encoder *link_enc;
1644 struct graphics_object_id link_id;
1645 /* Endpoint type distinguishes display endpoints which do not have entries
1646 * in the BIOS connector table from those that do. Helps when tracking link
1647 * encoder to display endpoint assignments.
1649 enum display_endpoint_type ep_type;
1650 union ddi_channel_mapping ddi_channel_mapping;
1651 struct connector_device_tag_info device_tag;
1652 struct dpcd_caps dpcd_caps;
1653 uint32_t dongle_max_pix_clk;
1654 unsigned short chip_caps;
1655 unsigned int dpcd_sink_count;
1656 struct hdcp_caps hdcp_caps;
1657 enum edp_revision edp_revision;
1658 union dpcd_sink_ext_caps dpcd_sink_ext_caps;
1660 struct psr_settings psr_settings;
1662 struct replay_settings replay_settings;
1664 /* Drive settings read from integrated info table */
1665 struct dc_lane_settings bios_forced_drive_settings;
1667 /* Vendor specific LTTPR workaround variables */
1668 uint8_t vendor_specific_lttpr_link_rate_wa;
1669 bool apply_vendor_specific_lttpr_link_rate_wa;
1671 /* MST record stream using this link */
1673 bool dp_keep_receiver_powered;
1675 bool dp_skip_reset_segment;
1676 bool dp_skip_fs_144hz;
1677 bool dp_mot_reset_segment;
1678 /* Some USB4 docks do not handle turning off MST DSC once it has been enabled. */
1679 bool dpia_mst_dsc_always_on;
1680 /* Forced DPIA into TBT3 compatibility mode. */
1681 bool dpia_forced_tbt3_mode;
1682 bool dongle_mode_timing_override;
1683 bool blank_stream_on_ocs_change;
1684 bool read_dpcd204h_on_irq_hpd;
1686 struct link_mst_stream_allocation_table mst_stream_alloc_table;
1688 struct dc_link_status link_status;
1689 struct dprx_states dprx_states;
1691 struct gpio *hpd_gpio;
1692 enum dc_link_fec_state fec_state;
1693 bool link_powered_externally; // Used to bypass hardware sequencing delays when panel is powered down forcibly
1695 struct dc_panel_config panel_config;
1696 struct phy_state phy_state;
1697 // BW ALLOCATON USB4 ONLY
1698 struct dc_dpia_bw_alloc dpia_bw_alloc_config;
1699 bool skip_implict_edp_power_control;
1702 /* Return an enumerated dc_link.
1703 * dc_link order is constant and determined at
1704 * boot time. They cannot be created or destroyed.
1705 * Use dc_get_caps() to get number of links.
1707 struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_index);
1709 /* Return instance id of the edp link. Inst 0 is primary edp link. */
1710 bool dc_get_edp_link_panel_inst(const struct dc *dc,
1711 const struct dc_link *link,
1712 unsigned int *inst_out);
1714 /* Return an array of link pointers to edp links. */
1715 void dc_get_edp_links(const struct dc *dc,
1716 struct dc_link **edp_links,
1719 void dc_set_edp_power(const struct dc *dc, struct dc_link *edp_link,
1722 /* The function initiates detection handshake over the given link. It first
1723 * determines if there are display connections over the link. If so it initiates
1724 * detection protocols supported by the connected receiver device. The function
1725 * contains protocol specific handshake sequences which are sometimes mandatory
1726 * to establish a proper connection between TX and RX. So it is always
1727 * recommended to call this function as the first link operation upon HPD event
1728 * or power up event. Upon completion, the function will update link structure
1729 * in place based on latest RX capabilities. The function may also cause dpms
1730 * to be reset to off for all currently enabled streams to the link. It is DM's
1731 * responsibility to serialize detection and DPMS updates.
1733 * @reason - Indicate which event triggers this detection. dc may customize
1734 * detection flow depending on the triggering events.
1735 * return false - if detection is not fully completed. This could happen when
1736 * there is an unrecoverable error during detection or detection is partially
1737 * completed (detection has been delegated to dm mst manager ie.
1738 * link->connection_type == dc_connection_mst_branch when returning false).
1739 * return true - detection is completed, link has been fully updated with latest
1742 bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason);
1744 struct dc_sink_init_data;
1746 /* When link connection type is dc_connection_mst_branch, remote sink can be
1747 * added to the link. The interface creates a remote sink and associates it with
1748 * current link. The sink will be retained by link until remove remote sink is
1751 * @dc_link - link the remote sink will be added to.
1752 * @edid - byte array of EDID raw data.
1753 * @len - size of the edid in byte
1756 struct dc_sink *dc_link_add_remote_sink(
1757 struct dc_link *dc_link,
1758 const uint8_t *edid,
1760 struct dc_sink_init_data *init_data);
1762 /* Remove remote sink from a link with dc_connection_mst_branch connection type.
1763 * @link - link the sink should be removed from
1764 * @sink - sink to be removed.
1766 void dc_link_remove_remote_sink(
1767 struct dc_link *link,
1768 struct dc_sink *sink);
1770 /* Enable HPD interrupt handler for a given link */
1771 void dc_link_enable_hpd(const struct dc_link *link);
1773 /* Disable HPD interrupt handler for a given link */
1774 void dc_link_disable_hpd(const struct dc_link *link);
1776 /* determine if there is a sink connected to the link
1778 * @type - dc_connection_single if connected, dc_connection_none otherwise.
1779 * return - false if an unexpected error occurs, true otherwise.
1781 * NOTE: This function doesn't detect downstream sink connections i.e
1782 * dc_connection_mst_branch, dc_connection_sst_branch. In this case, it will
1783 * return dc_connection_single if the branch device is connected despite of
1784 * downstream sink's connection status.
1786 bool dc_link_detect_connection_type(struct dc_link *link,
1787 enum dc_connection_type *type);
1789 /* query current hpd pin value
1790 * return - true HPD is asserted (HPD high), false otherwise (HPD low)
1793 bool dc_link_get_hpd_state(struct dc_link *link);
1795 /* Getter for cached link status from given link */
1796 const struct dc_link_status *dc_link_get_status(const struct dc_link *link);
1798 /* enable/disable hardware HPD filter.
1800 * @link - The link the HPD pin is associated with.
1801 * @enable = true - enable hardware HPD filter. HPD event will only queued to irq
1802 * handler once after no HPD change has been detected within dc default HPD
1803 * filtering interval since last HPD event. i.e if display keeps toggling hpd
1804 * pulses within default HPD interval, no HPD event will be received until HPD
1805 * toggles have stopped. Then HPD event will be queued to irq handler once after
1806 * dc default HPD filtering interval since last HPD event.
1808 * @enable = false - disable hardware HPD filter. HPD event will be queued
1809 * immediately to irq handler after no HPD change has been detected within
1810 * IRQ_HPD (aka HPD short pulse) interval (i.e 2ms).
1812 void dc_link_enable_hpd_filter(struct dc_link *link, bool enable);
1814 /* submit i2c read/write payloads through ddc channel
1815 * @link_index - index to a link with ddc in i2c mode
1816 * @cmd - i2c command structure
1817 * return - true if success, false otherwise.
1821 uint32_t link_index,
1822 struct i2c_command *cmd);
1824 /* submit i2c read/write payloads through oem channel
1825 * @link_index - index to a link with ddc in i2c mode
1826 * @cmd - i2c command structure
1827 * return - true if success, false otherwise.
1829 bool dc_submit_i2c_oem(
1831 struct i2c_command *cmd);
1833 enum aux_return_code_type;
1834 /* Attempt to transfer the given aux payload. This function does not perform
1835 * retries or handle error states. The reply is returned in the payload->reply
1836 * and the result through operation_result. Returns the number of bytes
1837 * transferred,or -1 on a failure.
1839 int dc_link_aux_transfer_raw(struct ddc_service *ddc,
1840 struct aux_payload *payload,
1841 enum aux_return_code_type *operation_result);
1843 bool dc_is_oem_i2c_device_present(
1845 size_t slave_address
1848 /* return true if the connected receiver supports the hdcp version */
1849 bool dc_link_is_hdcp14(struct dc_link *link, enum signal_type signal);
1850 bool dc_link_is_hdcp22(struct dc_link *link, enum signal_type signal);
1852 /* Notify DC about DP RX Interrupt (aka DP IRQ_HPD).
1854 * TODO - When defer_handling is true the function will have a different purpose.
1855 * It no longer does complete hpd rx irq handling. We should create a separate
1856 * interface specifically for this case.
1859 * true - Downstream port status changed. DM should call DC to do the
1861 * false - no change in Downstream port status. No further action required
1864 bool dc_link_handle_hpd_rx_irq(struct dc_link *dc_link,
1865 union hpd_irq_data *hpd_irq_dpcd_data, bool *out_link_loss,
1866 bool defer_handling, bool *has_left_work);
1867 /* handle DP specs define test automation sequence*/
1868 void dc_link_dp_handle_automated_test(struct dc_link *link);
1870 /* handle DP Link loss sequence and try to recover RX link loss with best
1873 void dc_link_dp_handle_link_loss(struct dc_link *link);
1875 /* Determine if hpd rx irq should be handled or ignored
1876 * return true - hpd rx irq should be handled.
1877 * return false - it is safe to ignore hpd rx irq event
1879 bool dc_link_dp_allow_hpd_rx_irq(const struct dc_link *link);
1881 /* Determine if link loss is indicated with a given hpd_irq_dpcd_data.
1882 * @link - link the hpd irq data associated with
1883 * @hpd_irq_dpcd_data - input hpd irq data
1884 * return - true if hpd irq data indicates a link lost
1886 bool dc_link_check_link_loss_status(struct dc_link *link,
1887 union hpd_irq_data *hpd_irq_dpcd_data);
1889 /* Read hpd rx irq data from a given link
1890 * @link - link where the hpd irq data should be read from
1891 * @irq_data - output hpd irq data
1892 * return - DC_OK if hpd irq data is read successfully, otherwise hpd irq data
1895 enum dc_status dc_link_dp_read_hpd_rx_irq_data(
1896 struct dc_link *link,
1897 union hpd_irq_data *irq_data);
1899 /* The function clears recorded DP RX states in the link. DM should call this
1900 * function when it is resuming from S3 power state to previously connected links.
1902 * TODO - in the future we should consider to expand link resume interface to
1903 * support clearing previous rx states. So we don't have to rely on dm to call
1904 * this interface explicitly.
1906 void dc_link_clear_dprx_states(struct dc_link *link);
1908 /* Destruct the mst topology of the link and reset the allocated payload table
1910 * NOTE: this should only be called if DM chooses not to call dc_link_detect but
1911 * still wants to reset MST topology on an unplug event */
1912 bool dc_link_reset_cur_dp_mst_topology(struct dc_link *link);
1914 /* The function calculates effective DP link bandwidth when a given link is
1915 * using the given link settings.
1917 * return - total effective link bandwidth in kbps.
1919 uint32_t dc_link_bandwidth_kbps(
1920 const struct dc_link *link,
1921 const struct dc_link_settings *link_setting);
1923 /* The function takes a snapshot of current link resource allocation state
1924 * @dc: pointer to dc of the dm calling this
1925 * @map: a dc link resource snapshot defined internally to dc.
1927 * DM needs to capture a snapshot of current link resource allocation mapping
1928 * and store it in its persistent storage.
1930 * Some of the link resource is using first come first serve policy.
1931 * The allocation mapping depends on original hotplug order. This information
1932 * is lost after driver is loaded next time. The snapshot is used in order to
1933 * restore link resource to its previous state so user will get consistent
1934 * link capability allocation across reboot.
1937 void dc_get_cur_link_res_map(const struct dc *dc, uint32_t *map);
1939 /* This function restores link resource allocation state from a snapshot
1940 * @dc: pointer to dc of the dm calling this
1941 * @map: a dc link resource snapshot defined internally to dc.
1943 * DM needs to call this function after initial link detection on boot and
1944 * before first commit streams to restore link resource allocation state
1945 * from previous boot session.
1947 * Some of the link resource is using first come first serve policy.
1948 * The allocation mapping depends on original hotplug order. This information
1949 * is lost after driver is loaded next time. The snapshot is used in order to
1950 * restore link resource to its previous state so user will get consistent
1951 * link capability allocation across reboot.
1954 void dc_restore_link_res_map(const struct dc *dc, uint32_t *map);
1956 /* TODO: this is not meant to be exposed to DM. Should switch to stream update
1957 * interface i.e stream_update->dsc_config
1959 bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx);
1961 /* translate a raw link rate data to bandwidth in kbps */
1962 uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw);
1964 /* determine the optimal bandwidth given link and required bw.
1965 * @link - current detected link
1966 * @req_bw - requested bandwidth in kbps
1967 * @link_settings - returned most optimal link settings that can fit the
1968 * requested bandwidth
1969 * return - false if link can't support requested bandwidth, true if link
1970 * settings is found.
1972 bool dc_link_decide_edp_link_settings(struct dc_link *link,
1973 struct dc_link_settings *link_settings,
1976 /* return the max dp link settings can be driven by the link without considering
1977 * connected RX device and its capability
1979 bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link,
1980 struct dc_link_settings *max_link_enc_cap);
1982 /* determine when the link is driving MST mode, what DP link channel coding
1983 * format will be used. The decision will remain unchanged until next HPD event.
1985 * @link - a link with DP RX connection
1986 * return - if stream is committed to this link with MST signal type, type of
1987 * channel coding format dc will choose.
1989 enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format(
1990 const struct dc_link *link);
1992 /* get max dp link settings the link can enable with all things considered. (i.e
1993 * TX/RX/Cable capabilities and dp override policies.
1995 * @link - a link with DP RX connection
1996 * return - max dp link settings the link can enable.
1999 const struct dc_link_settings *dc_link_get_link_cap(const struct dc_link *link);
2001 /* Get the highest encoding format that the link supports; highest meaning the
2002 * encoding format which supports the maximum bandwidth.
2004 * @link - a link with DP RX connection
2005 * return - highest encoding format link supports.
2007 enum dc_link_encoding_format dc_link_get_highest_encoding_format(const struct dc_link *link);
2009 /* Check if a RX (ex. DP sink, MST hub, passive or active dongle) is connected
2010 * to a link with dp connector signal type.
2011 * @link - a link with dp connector signal type
2012 * return - true if connected, false otherwise
2014 bool dc_link_is_dp_sink_present(struct dc_link *link);
2016 /* Force DP lane settings update to main-link video signal and notify the change
2017 * to DP RX via DPCD. This is a debug interface used for video signal integrity
2018 * tuning purpose. The interface assumes link has already been enabled with DP
2021 * @lt_settings - a container structure with desired hw_lane_settings
2023 void dc_link_set_drive_settings(struct dc *dc,
2024 struct link_training_settings *lt_settings,
2025 struct dc_link *link);
2027 /* Enable a test pattern in Link or PHY layer in an active link for compliance
2028 * test or debugging purpose. The test pattern will remain until next un-plug.
2030 * @link - active link with DP signal output enabled.
2031 * @test_pattern - desired test pattern to output.
2032 * NOTE: set to DP_TEST_PATTERN_VIDEO_MODE to disable previous test pattern.
2033 * @test_pattern_color_space - for video test pattern choose a desired color
2035 * @p_link_settings - For PHY pattern choose a desired link settings
2036 * @p_custom_pattern - some test pattern will require a custom input to
2037 * customize some pattern details. Otherwise keep it to NULL.
2038 * @cust_pattern_size - size of the custom pattern input.
2041 bool dc_link_dp_set_test_pattern(
2042 struct dc_link *link,
2043 enum dp_test_pattern test_pattern,
2044 enum dp_test_pattern_color_space test_pattern_color_space,
2045 const struct link_training_settings *p_link_settings,
2046 const unsigned char *p_custom_pattern,
2047 unsigned int cust_pattern_size);
2049 /* Force DP link settings to always use a specific value until reboot to a
2050 * specific link. If link has already been enabled, the interface will also
2051 * switch to desired link settings immediately. This is a debug interface to
2052 * generic dp issue trouble shooting.
2054 void dc_link_set_preferred_link_settings(struct dc *dc,
2055 struct dc_link_settings *link_setting,
2056 struct dc_link *link);
2058 /* Force DP link to customize a specific link training behavior by overriding to
2059 * standard DP specs defined protocol. This is a debug interface to trouble shoot
2060 * display specific link training issues or apply some display specific
2061 * workaround in link training.
2063 * @link_settings - if not NULL, force preferred link settings to the link.
2064 * @lt_override - a set of override pointers. If any pointer is none NULL, dc
2065 * will apply this particular override in future link training. If NULL is
2066 * passed in, dc resets previous overrides.
2067 * NOTE: DM must keep the memory from override pointers until DM resets preferred
2068 * training settings.
2070 void dc_link_set_preferred_training_settings(struct dc *dc,
2071 struct dc_link_settings *link_setting,
2072 struct dc_link_training_overrides *lt_overrides,
2073 struct dc_link *link,
2074 bool skip_immediate_retrain);
2076 /* return - true if FEC is supported with connected DP RX, false otherwise */
2077 bool dc_link_is_fec_supported(const struct dc_link *link);
2079 /* query FEC enablement policy to determine if FEC will be enabled by dc during
2081 * return - true if FEC should be enabled, false otherwise.
2083 bool dc_link_should_enable_fec(const struct dc_link *link);
2085 /* determine lttpr mode the current link should be enabled with a specific link
2088 enum lttpr_mode dc_link_decide_lttpr_mode(struct dc_link *link,
2089 struct dc_link_settings *link_setting);
2091 /* Force DP RX to update its power state.
2092 * NOTE: this interface doesn't update dp main-link. Calling this function will
2093 * cause DP TX main-link and DP RX power states out of sync. DM has to restore
2094 * RX power state back upon finish DM specific execution requiring DP RX in a
2095 * specific power state.
2096 * @on - true to set DP RX in D0 power state, false to set DP RX in D3 power
2099 void dc_link_dp_receiver_power_ctrl(struct dc_link *link, bool on);
2101 /* Force link to read base dp receiver caps from dpcd 000h - 00Fh and overwrite
2102 * current value read from extended receiver cap from 02200h - 0220Fh.
2103 * Some DP RX has problems of providing accurate DP receiver caps from extended
2104 * field, this interface is a workaround to revert link back to use base caps.
2106 void dc_link_overwrite_extended_receiver_cap(
2107 struct dc_link *link);
2109 void dc_link_edp_panel_backlight_power_on(struct dc_link *link,
2112 /* Set backlight level of an embedded panel (eDP, LVDS).
2113 * backlight_pwm_u16_16 is unsigned 32 bit with 16 bit integer
2114 * and 16 bit fractional, where 1.0 is max backlight value.
2116 bool dc_link_set_backlight_level(const struct dc_link *dc_link,
2117 uint32_t backlight_pwm_u16_16,
2118 uint32_t frame_ramp);
2120 /* Set/get nits-based backlight level of an embedded panel (eDP, LVDS). */
2121 bool dc_link_set_backlight_level_nits(struct dc_link *link,
2123 uint32_t backlight_millinits,
2124 uint32_t transition_time_in_ms);
2126 bool dc_link_get_backlight_level_nits(struct dc_link *link,
2127 uint32_t *backlight_millinits,
2128 uint32_t *backlight_millinits_peak);
2130 int dc_link_get_backlight_level(const struct dc_link *dc_link);
2132 int dc_link_get_target_backlight_pwm(const struct dc_link *link);
2134 bool dc_link_set_psr_allow_active(struct dc_link *dc_link, const bool *enable,
2135 bool wait, bool force_static, const unsigned int *power_opts);
2137 bool dc_link_get_psr_state(const struct dc_link *dc_link, enum dc_psr_state *state);
2139 bool dc_link_setup_psr(struct dc_link *dc_link,
2140 const struct dc_stream_state *stream, struct psr_config *psr_config,
2141 struct psr_context *psr_context);
2144 * Communicate with DMUB to allow or disallow Panel Replay on the specified link:
2146 * @link: pointer to the dc_link struct instance
2147 * @enable: enable(active) or disable(inactive) replay
2148 * @wait: state transition need to wait the active set completed.
2149 * @force_static: force disable(inactive) the replay
2150 * @power_opts: set power optimazation parameters to DMUB.
2152 * return: allow Replay active will return true, else will return false.
2154 bool dc_link_set_replay_allow_active(struct dc_link *dc_link, const bool *enable,
2155 bool wait, bool force_static, const unsigned int *power_opts);
2157 bool dc_link_get_replay_state(const struct dc_link *dc_link, uint64_t *state);
2159 /* On eDP links this function call will stall until T12 has elapsed.
2160 * If the panel is not in power off state, this function will return
2163 bool dc_link_wait_for_t12(struct dc_link *link);
2165 /* Determine if dp trace has been initialized to reflect upto date result *
2166 * return - true if trace is initialized and has valid data. False dp trace
2167 * doesn't have valid result.
2169 bool dc_dp_trace_is_initialized(struct dc_link *link);
2171 /* Query a dp trace flag to indicate if the current dp trace data has been
2174 bool dc_dp_trace_is_logged(struct dc_link *link,
2177 /* Set dp trace flag to indicate whether DM has already logged the current dp
2178 * trace data. DM can set is_logged to true upon logging and check
2179 * dc_dp_trace_is_logged before logging to avoid logging the same result twice.
2181 void dc_dp_trace_set_is_logged_flag(struct dc_link *link,
2185 /* Obtain driver time stamp for last dp link training end. The time stamp is
2186 * formatted based on dm_get_timestamp DM function.
2187 * @in_detection - true to get link training end time stamp of last link
2188 * training in detection sequence. false to get link training end time stamp
2189 * of last link training in commit (dpms) sequence
2191 unsigned long long dc_dp_trace_get_lt_end_timestamp(struct dc_link *link,
2194 /* Get how many link training attempts dc has done with latest sequence.
2195 * @in_detection - true to get link training count of last link
2196 * training in detection sequence. false to get link training count of last link
2197 * training in commit (dpms) sequence
2199 const struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link,
2202 /* Get how many link loss has happened since last link training attempts */
2203 unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link);
2206 * USB4 DPIA BW ALLOCATION PUBLIC FUNCTIONS
2209 * Send a request from DP-Tx requesting to allocate BW remotely after
2210 * allocating it locally. This will get processed by CM and a CB function
2213 * @link: pointer to the dc_link struct instance
2214 * @req_bw: The requested bw in Kbyte to allocated
2218 void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw);
2221 * Handle function for when the status of the Request above is complete.
2222 * We will find out the result of allocating on CM and update structs.
2224 * @link: pointer to the dc_link struct instance
2225 * @bw: Allocated or Estimated BW depending on the result
2226 * @result: Response type
2230 void dc_link_handle_usb4_bw_alloc_response(struct dc_link *link,
2231 uint8_t bw, uint8_t result);
2234 * Handle the USB4 BW Allocation related functionality here:
2235 * Plug => Try to allocate max bw from timing parameters supported by the sink
2236 * Unplug => de-allocate bw
2238 * @link: pointer to the dc_link struct instance
2239 * @peak_bw: Peak bw used by the link/sink
2241 * return: allocated bw else return 0
2243 int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link(
2244 struct dc_link *link, int peak_bw);
2247 * Validate the BW of all the valid DPIA links to make sure it doesn't exceed
2248 * available BW for each host router
2250 * @dc: pointer to dc struct
2251 * @stream: pointer to all possible streams
2252 * @count: number of valid DPIA streams
2254 * return: TRUE if bw used by DPIAs doesn't exceed available BW else return FALSE
2256 bool dc_link_dp_dpia_validate(struct dc *dc, const struct dc_stream_state *streams,
2257 const unsigned int count);
2259 /* Sink Interfaces - A sink corresponds to a display output device */
2261 struct dc_container_id {
2262 // 128bit GUID in binary form
2263 unsigned char guid[16];
2264 // 8 byte port ID -> ELD.PortID
2265 unsigned int portId[2];
2266 // 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
2267 unsigned short manufacturerName;
2268 // 2 byte product code -> ELD.ProductCode
2269 unsigned short productCode;
2273 struct dc_sink_dsc_caps {
2274 // 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
2275 // 'false' if they are sink's DSC caps
2276 bool is_virtual_dpcd_dsc;
2277 // 'true' if MST topology supports DSC passthrough for sink
2278 // 'false' if MST topology does not support DSC passthrough
2279 bool is_dsc_passthrough_supported;
2280 struct dsc_dec_dpcd_caps dsc_dec_caps;
2283 struct dc_sink_fec_caps {
2284 bool is_rx_fec_supported;
2285 bool is_topology_fec_supported;
2289 union hdmi_scdc_manufacturer_OUI_data manufacturer_OUI;
2290 union hdmi_scdc_device_id_data device_id;
2294 * The sink structure contains EDID and other display device properties
2297 enum signal_type sink_signal;
2298 struct dc_edid dc_edid; /* raw edid */
2299 struct dc_edid_caps edid_caps; /* parse display caps */
2300 struct dc_container_id *dc_container_id;
2301 uint32_t dongle_max_pix_clk;
2303 struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
2304 bool converter_disable_audio;
2306 struct scdc_caps scdc_caps;
2307 struct dc_sink_dsc_caps dsc_caps;
2308 struct dc_sink_fec_caps fec_caps;
2310 bool is_vsc_sdp_colorimetry_supported;
2312 /* private to DC core */
2313 struct dc_link *link;
2314 struct dc_context *ctx;
2318 /* private to dc_sink.c */
2319 // refcount must be the last member in dc_sink, since we want the
2320 // sink structure to be logically cloneable up to (but not including)
2322 struct kref refcount;
2325 void dc_sink_retain(struct dc_sink *sink);
2326 void dc_sink_release(struct dc_sink *sink);
2328 struct dc_sink_init_data {
2329 enum signal_type sink_signal;
2330 struct dc_link *link;
2331 uint32_t dongle_max_pix_clk;
2332 bool converter_disable_audio;
2335 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
2337 /* Newer interfaces */
2339 struct dc_plane_address address;
2340 struct dc_cursor_attributes attributes;
2344 /* Interrupt interfaces */
2345 enum dc_irq_source dc_interrupt_to_irq_source(
2349 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
2350 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
2351 enum dc_irq_source dc_get_hpd_irq_source_at_index(
2352 struct dc *dc, uint32_t link_index);
2354 void dc_notify_vsync_int_state(struct dc *dc, struct dc_stream_state *stream, bool enable);
2356 /* Power Interfaces */
2358 void dc_set_power_state(
2360 enum dc_acpi_cm_power_state power_state);
2361 void dc_resume(struct dc *dc);
2363 void dc_power_down_on_boot(struct dc *dc);
2368 enum hdcp_message_status dc_process_hdcp_msg(
2369 enum signal_type signal,
2370 struct dc_link *link,
2371 struct hdcp_protection_message *message_info);
2372 bool dc_is_dmcu_initialized(struct dc *dc);
2374 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
2375 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
2377 bool dc_is_plane_eligible_for_idle_optimizations(struct dc *dc,
2379 unsigned int height,
2380 enum surface_pixel_format format,
2381 struct dc_cursor_attributes *cursor_attr);
2383 #define dc_allow_idle_optimizations(dc, allow) dc_allow_idle_optimizations_internal(dc, allow, __func__)
2384 #define dc_exit_ips_for_hw_access(dc) dc_exit_ips_for_hw_access_internal(dc, __func__)
2386 void dc_allow_idle_optimizations_internal(struct dc *dc, bool allow, const char *caller_name);
2387 void dc_exit_ips_for_hw_access_internal(struct dc *dc, const char *caller_name);
2388 bool dc_dmub_is_ips_idle_state(struct dc *dc);
2390 /* set min and max memory clock to lowest and highest DPM level, respectively */
2391 void dc_unlock_memory_clock_frequency(struct dc *dc);
2393 /* set min memory clock to the min required for current mode, max to maxDPM */
2394 void dc_lock_memory_clock_frequency(struct dc *dc);
2396 /* set soft max for memclk, to be used for AC/DC switching clock limitations */
2397 void dc_enable_dcmode_clk_limit(struct dc *dc, bool enable);
2399 /* cleanup on driver unload */
2400 void dc_hardware_release(struct dc *dc);
2402 /* disables fw based mclk switch */
2403 void dc_mclk_switch_using_fw_based_vblank_stretch_shut_down(struct dc *dc);
2405 bool dc_set_psr_allow_active(struct dc *dc, bool enable);
2407 bool dc_set_replay_allow_active(struct dc *dc, bool active);
2409 void dc_z10_restore(const struct dc *dc);
2410 void dc_z10_save_init(struct dc *dc);
2412 bool dc_is_dmub_outbox_supported(struct dc *dc);
2413 bool dc_enable_dmub_notifications(struct dc *dc);
2415 bool dc_abm_save_restore(
2417 struct dc_stream_state *stream,
2418 struct abm_save_restore *pData);
2420 void dc_enable_dmub_outbox(struct dc *dc);
2422 bool dc_process_dmub_aux_transfer_async(struct dc *dc,
2423 uint32_t link_index,
2424 struct aux_payload *payload);
2426 /* Get dc link index from dpia port index */
2427 uint8_t get_link_index_from_dpia_port_index(const struct dc *dc,
2428 uint8_t dpia_port_index);
2430 bool dc_process_dmub_set_config_async(struct dc *dc,
2431 uint32_t link_index,
2432 struct set_config_cmd_payload *payload,
2433 struct dmub_notification *notify);
2435 enum dc_status dc_process_dmub_set_mst_slots(const struct dc *dc,
2436 uint32_t link_index,
2437 uint8_t mst_alloc_slots,
2438 uint8_t *mst_slots_in_use);
2440 void dc_process_dmub_dpia_hpd_int_enable(const struct dc *dc,
2441 uint32_t hpd_int_enable);
2443 void dc_print_dmub_diagnostic_data(const struct dc *dc);
2445 void dc_query_current_properties(struct dc *dc, struct dc_current_properties *properties);
2447 struct dc_power_profile {
2448 int power_level; /* Lower is better */
2451 struct dc_power_profile dc_get_power_profile_for_dc_state(const struct dc_state *context);
2453 /* DSC Interfaces */
2456 /* Disable acc mode Interfaces */
2457 void dc_disable_accelerated_mode(struct dc *dc);
2459 bool dc_is_timing_changed(struct dc_stream_state *cur_stream,
2460 struct dc_stream_state *new_stream);
2462 #endif /* DC_INTERFACE_H_ */