2 * Copyright 2012-2023 Advanced Micro Devices, Inc.
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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 "3.2.301"
60 #define MAX_SURFACES 3
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 {
231 uint32_t max_streams;
234 uint32_t max_slave_planes;
235 uint32_t max_slave_yuv_planes;
236 uint32_t max_slave_rgb_planes;
238 uint32_t max_downscale_ratio;
239 uint32_t i2c_speed_in_khz;
240 uint32_t i2c_speed_in_khz_hdcp;
241 uint32_t dmdata_alloc_size;
242 unsigned int max_cursor_size;
243 unsigned int max_video_width;
245 * max video plane width that can be safely assumed to be always
246 * supported by single DPP pipe.
248 unsigned int max_optimizable_video_width;
249 unsigned int min_horizontal_blanking_period;
250 int linear_pitch_alignment;
251 bool dcc_const_color;
255 bool post_blend_color_processing;
256 bool force_dp_tps4_for_cp2520;
257 bool disable_dp_clk_share;
258 bool psp_setup_panel_mode;
259 bool extended_aux_timeout_support;
263 uint32_t num_of_internal_disp;
264 enum dp_protocol_version max_dp_protocol_version;
265 unsigned int mall_size_per_mem_channel;
266 unsigned int mall_size_total;
267 unsigned int cursor_cache_size;
268 struct dc_plane_cap planes[MAX_PLANES];
269 struct dc_color_caps color;
270 struct dc_dmub_caps dmub_caps;
272 bool dp_hdmi21_pcon_support;
273 bool edp_dsc_support;
274 bool vbios_lttpr_aware;
275 bool vbios_lttpr_enable;
276 uint32_t max_otg_num;
277 uint32_t max_cab_allocation_bytes;
278 uint32_t cache_line_size;
279 uint32_t cache_num_ways;
280 uint16_t subvp_fw_processing_delay_us;
281 uint8_t subvp_drr_max_vblank_margin_us;
282 uint16_t subvp_prefetch_end_to_mall_start_us;
283 uint8_t subvp_swath_height_margin_lines; // subvp start line must be aligned to 2 x swath height
284 uint16_t subvp_pstate_allow_width_us;
285 uint16_t subvp_vertical_int_margin_us;
287 uint32_t max_v_total;
288 uint32_t max_disp_clock_khz_at_vmin;
289 uint8_t subvp_drr_vblank_start_margin_us;
290 bool cursor_not_scaled;
291 bool dcmode_power_limits_present;
293 /* Conservative limit for DCC cases which require ODM4:1 to support*/
294 uint32_t dcc_plane_width_limit;
298 bool no_connect_phy_config;
300 bool skip_clock_update;
301 bool lt_early_cr_pattern;
306 uint8_t dcfclk_ds: 1;
307 } clock_update_disable_mask;
308 bool skip_psr_ips_crtc_disable;
310 struct dc_dcc_surface_param {
311 struct dc_size surface_size;
312 enum surface_pixel_format format;
313 unsigned int plane0_pitch;
314 struct dc_size plane1_size;
315 unsigned int plane1_pitch;
317 enum swizzle_mode_values swizzle_mode;
318 enum swizzle_mode_addr3_values swizzle_mode_addr3;
320 enum dc_scan_direction scan;
323 struct dc_dcc_setting {
324 unsigned int max_compressed_blk_size;
325 unsigned int max_uncompressed_blk_size;
326 bool independent_64b_blks;
327 //These bitfields to be used starting with DCN 3.0
329 uint32_t dcc_256_64_64 : 1;//available in ASICs before DCN 3.0 (the worst compression case)
330 uint32_t dcc_128_128_uncontrained : 1; //available in ASICs before DCN 3.0
331 uint32_t dcc_256_128_128 : 1; //available starting with DCN 3.0
332 uint32_t dcc_256_256_unconstrained : 1; //available in ASICs before DCN 3.0 (the best compression case)
333 uint32_t dcc_256_256 : 1; //available in ASICs starting with DCN 4.0x (the best compression case)
334 uint32_t dcc_256_128 : 1; //available in ASICs starting with DCN 4.0x
335 uint32_t dcc_256_64 : 1; //available in ASICs starting with DCN 4.0x (the worst compression case)
339 struct dc_surface_dcc_cap {
342 struct dc_dcc_setting rgb;
346 struct dc_dcc_setting luma;
347 struct dc_dcc_setting chroma;
352 bool const_color_support;
355 struct dc_static_screen_params {
362 unsigned int num_frames;
366 /* Surface update type is used by dc_update_surfaces_and_stream
367 * The update type is determined at the very beginning of the function based
368 * on parameters passed in and decides how much programming (or updating) is
369 * going to be done during the call.
371 * UPDATE_TYPE_FAST is used for really fast updates that do not require much
372 * logical calculations or hardware register programming. This update MUST be
373 * ISR safe on windows. Currently fast update will only be used to flip surface
376 * UPDATE_TYPE_MED is used for slower updates which require significant hw
377 * re-programming however do not affect bandwidth consumption or clock
378 * requirements. At present, this is the level at which front end updates
379 * that do not require us to run bw_calcs happen. These are in/out transfer func
380 * updates, viewport offset changes, recout size changes and pixel depth changes.
381 * This update can be done at ISR, but we want to minimize how often this happens.
383 * UPDATE_TYPE_FULL is slow. Really slow. This requires us to recalculate our
384 * bandwidth and clocks, possibly rearrange some pipes and reprogram anything front
385 * end related. Any time viewport dimensions, recout dimensions, scaling ratios or
386 * gamma need to be adjusted or pipe needs to be turned on (or disconnected) we do
387 * a full update. This cannot be done at ISR level and should be a rare event.
388 * Unless someone is stress testing mpo enter/exit, playing with colour or adjusting
389 * underscan we don't expect to see this call at all.
392 enum surface_update_type {
393 UPDATE_TYPE_FAST, /* super fast, safe to execute in isr */
394 UPDATE_TYPE_MED, /* ISR safe, most of programming needed, no bw/clk change*/
395 UPDATE_TYPE_FULL, /* may need to shuffle resources */
398 /* Forward declaration*/
400 struct dc_plane_state;
403 struct dc_cap_funcs {
404 bool (*get_dcc_compression_cap)(const struct dc *dc,
405 const struct dc_dcc_surface_param *input,
406 struct dc_surface_dcc_cap *output);
407 bool (*get_subvp_en)(struct dc *dc, struct dc_state *context);
410 struct link_training_settings;
412 union allow_lttpr_non_transparent_mode {
420 /* Structure to hold configuration flags set by dm at dc creation. */
423 bool disable_disp_pll_sharing;
425 bool disable_fractional_pwm;
426 bool allow_seamless_boot_optimization;
427 bool seamless_boot_edp_requested;
428 bool edp_not_connected;
429 bool edp_no_power_sequencing;
432 union allow_lttpr_non_transparent_mode allow_lttpr_non_transparent_mode;
433 bool multi_mon_pp_mclk_switch;
436 bool enable_windowed_mpo_odm;
437 bool forceHBR2CP2520; // Used for switching between test patterns TPS4 and CP2520
438 uint32_t allow_edp_hotplug_detection;
439 bool clamp_min_dcfclk;
440 uint64_t vblank_alignment_dto_params;
441 uint8_t vblank_alignment_max_frame_time_diff;
442 bool is_asymmetric_memory;
443 bool is_single_rank_dimm;
444 bool is_vmin_only_asic;
447 bool use_pipe_ctx_sync_logic;
448 bool ignore_dpref_ss;
449 bool enable_mipi_converter_optimization;
450 bool use_default_clock_table;
451 bool force_bios_enable_lttpr;
452 uint8_t force_bios_fixed_vs;
453 int sdpif_request_limit_words_per_umc;
454 bool dc_mode_clk_limit_support;
455 bool EnableMinDispClkODM;
456 bool enable_auto_dpm_test_logs;
457 unsigned int disable_ips;
458 unsigned int disable_ips_in_vpb;
459 bool usb4_bw_alloc_support;
460 bool allow_0_dtb_clk;
461 bool use_assr_psp_message;
462 bool support_edp0_on_dp1;
463 unsigned int enable_fpo_flicker_detection;
464 bool disable_hbr_audio_dp2;
465 bool consolidated_dpia_dp_lt;
468 enum visual_confirm {
469 VISUAL_CONFIRM_DISABLE = 0,
470 VISUAL_CONFIRM_SURFACE = 1,
471 VISUAL_CONFIRM_HDR = 2,
472 VISUAL_CONFIRM_MPCTREE = 4,
473 VISUAL_CONFIRM_PSR = 5,
474 VISUAL_CONFIRM_SWAPCHAIN = 6,
475 VISUAL_CONFIRM_FAMS = 7,
476 VISUAL_CONFIRM_SWIZZLE = 9,
477 VISUAL_CONFIRM_REPLAY = 12,
478 VISUAL_CONFIRM_SUBVP = 14,
479 VISUAL_CONFIRM_MCLK_SWITCH = 16,
480 VISUAL_CONFIRM_FAMS2 = 19,
481 VISUAL_CONFIRM_HW_CURSOR = 20,
484 enum dc_psr_power_opts {
485 psr_power_opt_invalid = 0x0,
486 psr_power_opt_smu_opt_static_screen = 0x1,
487 psr_power_opt_z10_static_screen = 0x10,
488 psr_power_opt_ds_disable_allow = 0x100,
491 enum dml_hostvm_override_opts {
492 DML_HOSTVM_NO_OVERRIDE = 0x0,
493 DML_HOSTVM_OVERRIDE_FALSE = 0x1,
494 DML_HOSTVM_OVERRIDE_TRUE = 0x2,
497 enum dc_replay_power_opts {
498 replay_power_opt_invalid = 0x0,
499 replay_power_opt_smu_opt_static_screen = 0x1,
500 replay_power_opt_z10_static_screen = 0x10,
506 DCC_HALF_REQ_DISALBE = 2,
509 enum in_game_fams_config {
510 INGAME_FAMS_SINGLE_DISP_ENABLE, // enable in-game fams
511 INGAME_FAMS_DISABLE, // disable in-game fams
512 INGAME_FAMS_MULTI_DISP_ENABLE, //enable in-game fams for multi-display
513 INGAME_FAMS_MULTI_DISP_CLAMPED_ONLY, //enable in-game fams for multi-display only for clamped RR strategies
517 * enum pipe_split_policy - Pipe split strategy supported by DCN
519 * This enum is used to define the pipe split policy supported by DCN. By
520 * default, DC favors MPC_SPLIT_DYNAMIC.
522 enum pipe_split_policy {
524 * @MPC_SPLIT_DYNAMIC: DC will automatically decide how to split the
525 * pipe in order to bring the best trade-off between performance and
526 * power consumption. This is the recommended option.
528 MPC_SPLIT_DYNAMIC = 0,
531 * @MPC_SPLIT_AVOID: Avoid pipe split, which means that DC will not
532 * try any sort of split optimization.
537 * @MPC_SPLIT_AVOID_MULT_DISP: With this option, DC will only try to
538 * optimize the pipe utilization when using a single display; if the
539 * user connects to a second display, DC will avoid pipe split.
541 MPC_SPLIT_AVOID_MULT_DISP = 2,
544 enum wm_report_mode {
545 WM_REPORT_DEFAULT = 0,
546 WM_REPORT_OVERRIDE = 1,
549 dtm_level_p0 = 0,/*highest voltage*/
553 dtm_level_p4,/*when active_display_count = 0*/
557 DCN_PWR_STATE_UNKNOWN = -1,
558 DCN_PWR_STATE_MISSION_MODE = 0,
559 DCN_PWR_STATE_LOW_POWER = 3,
562 enum dcn_zstate_support_state {
563 DCN_ZSTATE_SUPPORT_UNKNOWN,
564 DCN_ZSTATE_SUPPORT_ALLOW,
565 DCN_ZSTATE_SUPPORT_ALLOW_Z8_ONLY,
566 DCN_ZSTATE_SUPPORT_ALLOW_Z8_Z10_ONLY,
567 DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY,
568 DCN_ZSTATE_SUPPORT_DISALLOW,
572 * struct dc_clocks - DC pipe clocks
574 * For any clocks that may differ per pipe only the max is stored in this
579 int actual_dispclk_khz;
581 int actual_dppclk_khz;
582 int disp_dpp_voltage_level_khz;
585 int dcfclk_deep_sleep_khz;
589 bool p_state_change_support;
590 enum dcn_zstate_support_state zstate_support;
593 bool fclk_p_state_change_support;
594 enum dcn_pwr_state pwr_state;
596 * Elements below are not compared for the purposes of
597 * optimization required
599 bool prev_p_state_change_support;
600 bool fclk_prev_p_state_change_support;
602 int host_router_bw_kbps[MAX_HOST_ROUTERS_NUM];
605 * @fw_based_mclk_switching
607 * DC has a mechanism that leverage the variable refresh rate to switch
608 * memory clock in cases that we have a large latency to achieve the
609 * memory clock change and a short vblank window. DC has some
610 * requirements to enable this feature, and this field describes if the
611 * system support or not such a feature.
613 bool fw_based_mclk_switching;
614 bool fw_based_mclk_switching_shut_down;
616 enum dtm_pstate dtm_level;
617 int max_supported_dppclk_khz;
618 int max_supported_dispclk_khz;
619 int bw_dppclk_khz; /*a copy of dppclk_khz*/
621 int idle_dramclk_khz;
625 struct dc_bw_validation_profile {
628 unsigned long long total_ticks;
629 unsigned long long voltage_level_ticks;
630 unsigned long long watermark_ticks;
631 unsigned long long rq_dlg_ticks;
633 unsigned long long total_count;
634 unsigned long long skip_fast_count;
635 unsigned long long skip_pass_count;
636 unsigned long long skip_fail_count;
639 #define BW_VAL_TRACE_SETUP() \
640 unsigned long long end_tick = 0; \
641 unsigned long long voltage_level_tick = 0; \
642 unsigned long long watermark_tick = 0; \
643 unsigned long long start_tick = dc->debug.bw_val_profile.enable ? \
644 dm_get_timestamp(dc->ctx) : 0
646 #define BW_VAL_TRACE_COUNT() \
647 if (dc->debug.bw_val_profile.enable) \
648 dc->debug.bw_val_profile.total_count++
650 #define BW_VAL_TRACE_SKIP(status) \
651 if (dc->debug.bw_val_profile.enable) { \
652 if (!voltage_level_tick) \
653 voltage_level_tick = dm_get_timestamp(dc->ctx); \
654 dc->debug.bw_val_profile.skip_ ## status ## _count++; \
657 #define BW_VAL_TRACE_END_VOLTAGE_LEVEL() \
658 if (dc->debug.bw_val_profile.enable) \
659 voltage_level_tick = dm_get_timestamp(dc->ctx)
661 #define BW_VAL_TRACE_END_WATERMARKS() \
662 if (dc->debug.bw_val_profile.enable) \
663 watermark_tick = dm_get_timestamp(dc->ctx)
665 #define BW_VAL_TRACE_FINISH() \
666 if (dc->debug.bw_val_profile.enable) { \
667 end_tick = dm_get_timestamp(dc->ctx); \
668 dc->debug.bw_val_profile.total_ticks += end_tick - start_tick; \
669 dc->debug.bw_val_profile.voltage_level_ticks += voltage_level_tick - start_tick; \
670 if (watermark_tick) { \
671 dc->debug.bw_val_profile.watermark_ticks += watermark_tick - voltage_level_tick; \
672 dc->debug.bw_val_profile.rq_dlg_ticks += end_tick - watermark_tick; \
676 union mem_low_power_enable_options {
691 union root_clock_optimization_options {
703 uint32_t reserved: 22;
708 union fine_grain_clock_gating_enable_options {
710 bool dccg_global_fgcg_rep : 1; /* Global fine grain clock gating of repeaters */
711 bool dchub : 1; /* Display controller hub */
713 bool dpp : 1; /* Display pipes and planes */
714 bool opp : 1; /* Output pixel processing */
715 bool optc : 1; /* Output pipe timing combiner */
716 bool dio : 1; /* Display output */
717 bool dwb : 1; /* Display writeback */
718 bool mmhubbub : 1; /* Multimedia hub */
719 bool dmu : 1; /* Display core management unit */
720 bool az : 1; /* Azalia */
722 bool dsc : 1; /* Display stream compression */
724 uint32_t reserved : 19;
729 enum pg_hw_pipe_resources {
739 PG_HW_PIPE_RESOURCES_NUM_ELEMENT
742 enum pg_hw_resources {
750 PG_HW_RESOURCES_NUM_ELEMENT
753 struct pg_block_update {
754 bool pg_pipe_res_update[PG_HW_PIPE_RESOURCES_NUM_ELEMENT][MAX_PIPES];
755 bool pg_res_update[PG_HW_RESOURCES_NUM_ELEMENT];
758 union dpia_debug_options {
760 uint32_t disable_dpia:1; /* bit 0 */
761 uint32_t force_non_lttpr:1; /* bit 1 */
762 uint32_t extend_aux_rd_interval:1; /* bit 2 */
763 uint32_t disable_mst_dsc_work_around:1; /* bit 3 */
764 uint32_t enable_force_tbt3_work_around:1; /* bit 4 */
765 uint32_t disable_usb4_pm_support:1; /* bit 5 */
766 uint32_t enable_consolidated_dpia_dp_lt:1; /* bit 6 */
767 uint32_t reserved:25;
772 /* AUX wake work around options
773 * 0: enable/disable work around
774 * 1: use default timeout LINK_AUX_WAKE_TIMEOUT_MS
776 * 31-16: timeout in ms
778 union aux_wake_wa_options {
780 uint32_t enable_wa : 1;
781 uint32_t use_default_timeout : 1;
783 uint32_t timeout_ms : 16;
788 struct dc_debug_data {
789 uint32_t ltFailCount;
790 uint32_t i2cErrorCount;
791 uint32_t auxErrorCount;
794 struct dc_phy_addr_space_config {
807 uint64_t page_table_start_addr;
808 uint64_t page_table_end_addr;
809 uint64_t page_table_base_addr;
810 bool base_addr_is_mc_addr;
815 uint64_t page_table_default_page_addr;
818 struct dc_virtual_addr_space_config {
819 uint64_t page_table_base_addr;
820 uint64_t page_table_start_addr;
821 uint64_t page_table_end_addr;
822 uint32_t page_table_block_size_in_bytes;
823 uint8_t page_table_depth; // 1 = 1 level, 2 = 2 level, etc. 0 = invalid
826 struct dc_bounding_box_overrides {
828 int sr_enter_plus_exit_time_ns;
829 int sr_exit_z8_time_ns;
830 int sr_enter_plus_exit_z8_time_ns;
831 int urgent_latency_ns;
832 int percent_of_ideal_drambw;
833 int dram_clock_change_latency_ns;
834 int dummy_clock_change_latency_ns;
835 int fclk_clock_change_latency_ns;
836 /* This forces a hard min on the DCFCLK we use
837 * for DML. Unlike the debug option for forcing
838 * DCFCLK, this override affects watermark calculations
844 struct resource_pool;
849 * struct dc_debug_options - DC debug struct
851 * This struct provides a simple mechanism for developers to change some
852 * configurations, enable/disable features, and activate extra debug options.
853 * This can be very handy to narrow down whether some specific feature is
854 * causing an issue or not.
856 struct dc_debug_options {
857 bool native422_support;
859 enum visual_confirm visual_confirm;
860 int visual_confirm_rect_height;
867 bool validation_trace;
868 bool bandwidth_calcs_trace;
869 int max_downscale_src_width;
871 /* stutter efficiency related */
872 bool disable_stutter;
874 enum dcc_option disable_dcc;
877 * @pipe_split_policy: Define which pipe split policy is used by the
880 enum pipe_split_policy pipe_split_policy;
881 bool force_single_disp_pipe_split;
882 bool voltage_align_fclk;
883 bool disable_min_fclk;
885 bool disable_dfs_bypass;
886 bool disable_dpp_power_gate;
887 bool disable_hubp_power_gate;
888 bool disable_dsc_power_gate;
889 bool disable_optc_power_gate;
890 bool disable_hpo_power_gate;
891 int dsc_min_slice_height_override;
892 int dsc_bpp_increment_div;
893 bool disable_pplib_wm_range;
894 enum wm_report_mode pplib_wm_report_mode;
895 unsigned int min_disp_clk_khz;
896 unsigned int min_dpp_clk_khz;
897 unsigned int min_dram_clk_khz;
898 int sr_exit_time_dpm0_ns;
899 int sr_enter_plus_exit_time_dpm0_ns;
901 int sr_enter_plus_exit_time_ns;
902 int sr_exit_z8_time_ns;
903 int sr_enter_plus_exit_z8_time_ns;
904 int urgent_latency_ns;
905 uint32_t underflow_assert_delay_us;
906 int percent_of_ideal_drambw;
907 int dram_clock_change_latency_ns;
908 bool optimized_watermark;
910 bool disable_pplib_clock_request;
911 bool disable_clock_gate;
912 bool disable_mem_low_power;
915 bool force_abm_enable;
916 bool disable_stereo_support;
918 bool performance_trace;
919 bool az_endpoint_mute_only;
920 bool always_use_regamma;
921 bool recovery_enabled;
922 bool avoid_vbios_exec_table;
923 bool scl_reset_length10;
925 bool skip_detection_link_training;
926 uint32_t edid_read_retry_times;
927 unsigned int force_odm_combine; //bit vector based on otg inst
928 unsigned int seamless_boot_odm_combine;
929 unsigned int force_odm_combine_4to1; //bit vector based on otg inst
930 int minimum_z8_residency_time;
931 int minimum_z10_residency_time;
933 unsigned int force_fclk_khz;
935 bool ips_disallow_entry;
936 bool dmub_offload_enabled;
937 bool dmcub_emulation;
938 bool disable_idle_power_optimizations;
939 unsigned int mall_size_override;
940 unsigned int mall_additional_timer_percent;
941 bool mall_error_as_fatal;
942 bool dmub_command_table; /* for testing only */
943 struct dc_bw_validation_profile bw_val_profile;
945 bool disable_48mhz_pwrdwn;
946 /* This forces a hard min on the DCFCLK requested to SMU/PP
947 * watermarks are not affected.
949 unsigned int force_min_dcfclk_mhz;
951 bool disable_timing_sync;
953 int force_clock_mode;/*every mode change.*/
955 bool disable_dram_clock_change_vactive_support;
956 bool validate_dml_output;
957 bool enable_dmcub_surface_flip;
958 bool usbc_combo_phy_reset_wa;
959 bool enable_dram_clock_change_one_display_vactive;
960 /* TODO - remove once tested */
962 bool set_mst_en_for_sst;
964 bool force_dp2_lt_fallback_method;
965 bool ignore_cable_id;
966 union mem_low_power_enable_options enable_mem_low_power;
967 union root_clock_optimization_options root_clock_optimization;
968 union fine_grain_clock_gating_enable_options enable_fine_grain_clock_gating;
969 bool hpo_optimization;
970 bool force_vblank_alignment;
972 /* Enable dmub aux for legacy ddc */
973 bool enable_dmub_aux_for_legacy_ddc;
975 enum in_game_fams_config disable_fams_gaming;
976 /* FEC/PSR1 sequence enable delay in 100us */
977 uint8_t fec_enable_delay_in100us;
978 bool enable_driver_sequence_debug;
979 enum det_size crb_alloc_policy;
980 int crb_alloc_policy_min_disp_count;
982 bool enable_z9_disable_interface;
983 bool psr_skip_crtc_disable;
984 uint32_t ips_skip_crtc_disable_mask;
985 union dpia_debug_options dpia_debug;
986 bool disable_fixed_vs_aux_timeout_wa;
987 uint32_t fixed_vs_aux_delay_config_wa;
988 bool force_disable_subvp;
989 bool force_subvp_mclk_switch;
990 bool allow_sw_cursor_fallback;
991 unsigned int force_subvp_num_ways;
992 unsigned int force_mall_ss_num_ways;
993 bool alloc_extra_way_for_cursor;
994 uint32_t subvp_extra_lines;
995 bool force_usr_allow;
996 /* uses value at boot and disables switch */
997 bool disable_dtb_ref_clk_switch;
998 bool extended_blank_optimization;
999 union aux_wake_wa_options aux_wake_wa;
1000 uint32_t mst_start_top_delay;
1001 uint8_t psr_power_use_phy_fsm;
1002 enum dml_hostvm_override_opts dml_hostvm_override;
1003 bool dml_disallow_alternate_prefetch_modes;
1004 bool use_legacy_soc_bb_mechanism;
1005 bool exit_idle_opt_for_cursor_updates;
1007 bool enable_single_display_2to1_odm_policy;
1008 bool enable_double_buffered_dsc_pg_support;
1009 bool enable_dp_dig_pixel_rate_div_policy;
1011 enum lttpr_mode lttpr_mode_override;
1012 unsigned int dsc_delay_factor_wa_x1000;
1013 unsigned int min_prefetch_in_strobe_ns;
1014 bool disable_unbounded_requesting;
1015 bool dig_fifo_off_in_blank;
1016 bool override_dispclk_programming;
1018 bool disallow_dispclk_dppclk_ds;
1019 bool disable_fpo_optimizations;
1020 bool support_eDP1_5;
1021 uint32_t fpo_vactive_margin_us;
1022 bool disable_fpo_vactive;
1023 bool disable_boot_optimizations;
1024 bool override_odm_optimization;
1025 bool minimize_dispclk_using_odm;
1026 bool disable_subvp_high_refresh;
1027 bool disable_dp_plus_plus_wa;
1028 uint32_t fpo_vactive_min_active_margin_us;
1029 uint32_t fpo_vactive_max_blank_us;
1030 bool enable_hpo_pg_support;
1031 bool enable_legacy_fast_update;
1032 bool disable_dc_mode_overwrite;
1033 bool replay_skip_crtc_disabled;
1034 bool ignore_pg;/*do nothing, let pmfw control it*/
1035 bool psp_disabled_wa;
1036 unsigned int ips2_eval_delay_us;
1037 unsigned int ips2_entry_delay_us;
1038 bool optimize_ips_handshake;
1039 bool disable_dmub_reallow_idle;
1040 bool disable_timeout;
1041 bool disable_extblankadj;
1042 bool enable_idle_reg_checks;
1043 unsigned int static_screen_wait_frames;
1045 bool force_chroma_subsampling_1tap;
1046 unsigned int dcc_meta_propagation_delay_us;
1047 bool disable_422_left_edge_pixel;
1048 bool dml21_force_pstate_method;
1049 uint32_t dml21_force_pstate_method_values[MAX_PIPES];
1050 uint32_t dml21_disable_pstate_method_mask;
1051 union dmub_fams2_global_feature_config fams2_config;
1052 bool enable_legacy_clock_update;
1053 unsigned int force_cositing;
1054 unsigned int disable_spl;
1055 unsigned int force_easf;
1056 unsigned int force_sharpness;
1057 unsigned int force_sharpness_level;
1058 unsigned int force_lls;
1059 bool notify_dpia_hr_bw;
1060 bool enable_ips_visual_confirm;
1061 unsigned int sharpen_policy;
1062 unsigned int scale_to_sharpness_policy;
1063 bool skip_full_updated_if_possible;
1067 /* Generic structure that can be used to query properties of DC. More fields
1068 * can be added as required.
1070 struct dc_current_properties {
1071 unsigned int cursor_size_limit;
1074 enum frame_buffer_mode {
1075 FRAME_BUFFER_MODE_LOCAL_ONLY = 0,
1076 FRAME_BUFFER_MODE_ZFB_ONLY,
1077 FRAME_BUFFER_MODE_MIXED_ZFB_AND_LOCAL,
1080 struct dchub_init_data {
1081 int64_t zfb_phys_addr_base;
1082 int64_t zfb_mc_base_addr;
1083 uint64_t zfb_size_in_byte;
1084 enum frame_buffer_mode fb_mode;
1085 bool dchub_initialzied;
1086 bool dchub_info_valid;
1091 struct dc_init_data {
1092 struct hw_asic_id asic_id;
1093 void *driver; /* ctx */
1094 struct cgs_device *cgs_device;
1095 struct dc_bounding_box_overrides bb_overrides;
1097 int num_virtual_links;
1099 * If 'vbios_override' not NULL, it will be called instead
1100 * of the real VBIOS. Intended use is Diagnostics on FPGA.
1102 struct dc_bios *vbios_override;
1103 enum dce_environment dce_environment;
1105 struct dmub_offload_funcs *dmub_if;
1106 struct dc_reg_helper_state *dmub_offload;
1108 struct dc_config flags;
1111 struct dpcd_vendor_signature vendor_signature;
1112 bool force_smu_not_present;
1114 * IP offset for run time initializaion of register addresses
1116 * DCN3.5+ will fail dc_create() if these fields are null for them. They are
1117 * applicable starting with DCN32/321 and are not used for ASICs upstreamed
1120 uint32_t *dcn_reg_offsets;
1121 uint32_t *nbio_reg_offsets;
1122 uint32_t *clk_reg_offsets;
1123 struct dml2_soc_bb *bb_from_dmub;
1126 struct dc_callback_init {
1127 struct cp_psp cp_psp;
1130 struct dc *dc_create(const struct dc_init_data *init_params);
1131 void dc_hardware_init(struct dc *dc);
1133 int dc_get_vmid_use_vector(struct dc *dc);
1134 void dc_setup_vm_context(struct dc *dc, struct dc_virtual_addr_space_config *va_config, int vmid);
1135 /* Returns the number of vmids supported */
1136 int dc_setup_system_context(struct dc *dc, struct dc_phy_addr_space_config *pa_config);
1137 void dc_init_callbacks(struct dc *dc,
1138 const struct dc_callback_init *init_params);
1139 void dc_deinit_callbacks(struct dc *dc);
1140 void dc_destroy(struct dc **dc);
1142 /* Surface Interfaces */
1145 TRANSFER_FUNC_POINTS = 1025
1148 struct dc_hdr_static_metadata {
1149 /* display chromaticities and white point in units of 0.00001 */
1150 unsigned int chromaticity_green_x;
1151 unsigned int chromaticity_green_y;
1152 unsigned int chromaticity_blue_x;
1153 unsigned int chromaticity_blue_y;
1154 unsigned int chromaticity_red_x;
1155 unsigned int chromaticity_red_y;
1156 unsigned int chromaticity_white_point_x;
1157 unsigned int chromaticity_white_point_y;
1159 uint32_t min_luminance;
1160 uint32_t max_luminance;
1161 uint32_t maximum_content_light_level;
1162 uint32_t maximum_frame_average_light_level;
1165 enum dc_transfer_func_type {
1167 TF_TYPE_DISTRIBUTED_POINTS,
1172 struct dc_transfer_func_distributed_points {
1173 struct fixed31_32 red[TRANSFER_FUNC_POINTS];
1174 struct fixed31_32 green[TRANSFER_FUNC_POINTS];
1175 struct fixed31_32 blue[TRANSFER_FUNC_POINTS];
1177 uint16_t end_exponent;
1178 uint16_t x_point_at_y1_red;
1179 uint16_t x_point_at_y1_green;
1180 uint16_t x_point_at_y1_blue;
1183 enum dc_transfer_func_predefined {
1184 TRANSFER_FUNCTION_SRGB,
1185 TRANSFER_FUNCTION_BT709,
1186 TRANSFER_FUNCTION_PQ,
1187 TRANSFER_FUNCTION_LINEAR,
1188 TRANSFER_FUNCTION_UNITY,
1189 TRANSFER_FUNCTION_HLG,
1190 TRANSFER_FUNCTION_HLG12,
1191 TRANSFER_FUNCTION_GAMMA22,
1192 TRANSFER_FUNCTION_GAMMA24,
1193 TRANSFER_FUNCTION_GAMMA26
1197 struct dc_transfer_func {
1198 struct kref refcount;
1199 enum dc_transfer_func_type type;
1200 enum dc_transfer_func_predefined tf;
1201 /* FP16 1.0 reference level in nits, default is 80 nits, only for PQ*/
1202 uint32_t sdr_ref_white_level;
1204 struct pwl_params pwl;
1205 struct dc_transfer_func_distributed_points tf_pts;
1210 union dc_3dlut_state {
1212 uint32_t initialized:1; /*if 3dlut is went through color module for initialization */
1213 uint32_t rmu_idx_valid:1; /*if mux settings are valid*/
1214 uint32_t rmu_mux_num:3; /*index of mux to use*/
1215 uint32_t mpc_rmu0_mux:4; /*select mpcc on mux, one of the following : mpcc0, mpcc1, mpcc2, mpcc3*/
1216 uint32_t mpc_rmu1_mux:4;
1217 uint32_t mpc_rmu2_mux:4;
1218 uint32_t reserved:15;
1225 struct kref refcount;
1226 struct tetrahedral_params lut_3d;
1227 struct fixed31_32 hdr_multiplier;
1228 union dc_3dlut_state state;
1231 * This structure is filled in by dc_surface_get_status and contains
1232 * the last requested address and the currently active address so the called
1233 * can determine if there are any outstanding flips
1235 struct dc_plane_status {
1236 struct dc_plane_address requested_address;
1237 struct dc_plane_address current_address;
1238 bool is_flip_pending;
1242 union surface_update_flags {
1245 uint32_t addr_update:1;
1246 /* Medium updates */
1247 uint32_t dcc_change:1;
1248 uint32_t color_space_change:1;
1249 uint32_t horizontal_mirror_change:1;
1250 uint32_t per_pixel_alpha_change:1;
1251 uint32_t global_alpha_change:1;
1252 uint32_t hdr_mult:1;
1253 uint32_t rotation_change:1;
1254 uint32_t swizzle_change:1;
1255 uint32_t scaling_change:1;
1256 uint32_t clip_size_change: 1;
1257 uint32_t position_change:1;
1258 uint32_t in_transfer_func_change:1;
1259 uint32_t input_csc_change:1;
1260 uint32_t coeff_reduction_change:1;
1261 uint32_t output_tf_change:1;
1262 uint32_t pixel_format_change:1;
1263 uint32_t plane_size_change:1;
1264 uint32_t gamut_remap_change:1;
1267 uint32_t new_plane:1;
1268 uint32_t bpp_change:1;
1269 uint32_t gamma_change:1;
1270 uint32_t bandwidth_change:1;
1271 uint32_t clock_change:1;
1272 uint32_t stereo_format_change:1;
1274 uint32_t tmz_changed:1;
1275 uint32_t mcm_transfer_function_enable_change:1; /* disable or enable MCM transfer func */
1276 uint32_t full_update:1;
1277 uint32_t sdr_white_level_nits:1;
1283 #define DC_REMOVE_PLANE_POINTERS 1
1285 struct dc_plane_state {
1286 struct dc_plane_address address;
1287 struct dc_plane_flip_time time;
1288 bool triplebuffer_flips;
1289 struct scaling_taps scaling_quality;
1290 struct rect src_rect;
1291 struct rect dst_rect;
1292 struct rect clip_rect;
1294 struct plane_size plane_size;
1295 union dc_tiling_info tiling_info;
1297 struct dc_plane_dcc_param dcc;
1299 struct dc_gamma gamma_correction;
1300 struct dc_transfer_func in_transfer_func;
1301 struct dc_bias_and_scale bias_and_scale;
1302 struct dc_csc_transform input_csc_color_matrix;
1303 struct fixed31_32 coeff_reduction_factor;
1304 struct fixed31_32 hdr_mult;
1305 struct colorspace_transform gamut_remap_matrix;
1307 // TODO: No longer used, remove
1308 struct dc_hdr_static_metadata hdr_static_ctx;
1310 enum dc_color_space color_space;
1312 struct dc_3dlut lut3d_func;
1313 struct dc_transfer_func in_shaper_func;
1314 struct dc_transfer_func blend_tf;
1316 struct dc_transfer_func *gamcor_tf;
1317 enum surface_pixel_format format;
1318 enum dc_rotation_angle rotation;
1319 enum plane_stereo_format stereo_format;
1321 bool is_tiling_rotated;
1322 bool per_pixel_alpha;
1323 bool pre_multiplied_alpha;
1325 int global_alpha_value;
1327 bool flip_immediate;
1328 bool horizontal_mirror;
1331 union surface_update_flags update_flags;
1332 bool flip_int_enabled;
1333 bool skip_manual_trigger;
1335 /* private to DC core */
1336 struct dc_plane_status status;
1337 struct dc_context *ctx;
1339 /* HACK: Workaround for forcing full reprogramming under some conditions */
1340 bool force_full_update;
1342 bool is_phantom; // TODO: Change mall_stream_config into mall_plane_config instead
1344 /* private to dc_surface.c */
1345 enum dc_irq_source irq_source;
1346 struct kref refcount;
1347 struct tg_color visual_confirm_color;
1349 bool is_statically_allocated;
1350 enum chroma_cositing cositing;
1351 enum dc_cm2_shaper_3dlut_setting mcm_shaper_3dlut_setting;
1352 bool mcm_lut1d_enable;
1353 struct dc_cm2_func_luts mcm_luts;
1355 enum mpcc_movable_cm_location mcm_location;
1356 struct dc_csc_transform cursor_csc_color_matrix;
1357 bool adaptive_sharpness_en;
1358 int sharpness_level;
1359 enum linear_light_scaling linear_light_scaling;
1360 unsigned int sdr_white_level_nits;
1363 struct dc_plane_info {
1364 struct plane_size plane_size;
1365 union dc_tiling_info tiling_info;
1366 struct dc_plane_dcc_param dcc;
1367 enum surface_pixel_format format;
1368 enum dc_rotation_angle rotation;
1369 enum plane_stereo_format stereo_format;
1370 enum dc_color_space color_space;
1371 bool horizontal_mirror;
1373 bool per_pixel_alpha;
1374 bool pre_multiplied_alpha;
1376 int global_alpha_value;
1377 bool input_csc_enabled;
1379 enum chroma_cositing cositing;
1382 #include "dc_stream.h"
1384 struct dc_scratch_space {
1385 /* used to temporarily backup plane states of a stream during
1386 * dc update. The reason is that plane states are overwritten
1387 * with surface updates in dc update. Once they are overwritten
1388 * current state is no longer valid. We want to temporarily
1389 * store current value in plane states so we can still recover
1390 * a valid current state during dc update.
1392 struct dc_plane_state plane_states[MAX_SURFACE_NUM];
1394 struct dc_stream_state stream_state;
1398 struct dc_debug_options debug;
1399 struct dc_versions versions;
1400 struct dc_caps caps;
1401 struct dc_cap_funcs cap_funcs;
1402 struct dc_config config;
1403 struct dc_bounding_box_overrides bb_overrides;
1404 struct dc_bug_wa work_arounds;
1405 struct dc_context *ctx;
1406 struct dc_phy_addr_space_config vm_pa_config;
1409 struct dc_link *links[MAX_LINKS];
1410 struct link_service *link_srv;
1412 struct dc_state *current_state;
1413 struct resource_pool *res_pool;
1415 struct clk_mgr *clk_mgr;
1417 /* Display Engine Clock levels */
1418 struct dm_pp_clock_levels sclk_lvls;
1420 /* Inputs into BW and WM calculations. */
1421 struct bw_calcs_dceip *bw_dceip;
1422 struct bw_calcs_vbios *bw_vbios;
1423 struct dcn_soc_bounding_box *dcn_soc;
1424 struct dcn_ip_params *dcn_ip;
1425 struct display_mode_lib dml;
1428 struct hw_sequencer_funcs hwss;
1429 struct dce_hwseq *hwseq;
1431 /* Require to optimize clocks and bandwidth for added/removed planes */
1432 bool optimized_required;
1433 bool wm_optimized_required;
1434 bool idle_optimizations_allowed;
1435 bool enable_c20_dtm_b0;
1437 /* Require to maintain clocks and bandwidth for UEFI enabled HW */
1439 /* FBC compressor */
1440 struct compressor *fbc_compressor;
1442 struct dc_debug_data debug_data;
1443 struct dpcd_vendor_signature vendor_signature;
1445 const char *build_id;
1446 struct vm_helper *vm_helper;
1448 uint32_t *dcn_reg_offsets;
1449 uint32_t *nbio_reg_offsets;
1450 uint32_t *clk_reg_offsets;
1452 /* Scratch memory */
1456 * For matching clock_limits table in driver with table
1459 struct _vcs_dpi_voltage_scaling_st clock_limits[DC__VOLTAGE_STATES];
1460 } update_bw_bounding_box;
1461 struct dc_scratch_space current_state;
1462 struct dc_scratch_space new_state;
1463 struct dc_stream_state temp_stream; // Used so we don't need to allocate stream on the stack
1466 struct dml2_configuration_options dml2_options;
1467 struct dml2_configuration_options dml2_tmp;
1468 enum dc_acpi_cm_power_state power_state;
1472 struct dc_scaling_info {
1473 struct rect src_rect;
1474 struct rect dst_rect;
1475 struct rect clip_rect;
1476 struct scaling_taps scaling_quality;
1479 struct dc_fast_update {
1480 const struct dc_flip_addrs *flip_addr;
1481 const struct dc_gamma *gamma;
1482 const struct colorspace_transform *gamut_remap_matrix;
1483 const struct dc_csc_transform *input_csc_color_matrix;
1484 const struct fixed31_32 *coeff_reduction_factor;
1485 struct dc_transfer_func *out_transfer_func;
1486 struct dc_csc_transform *output_csc_transform;
1487 const struct dc_csc_transform *cursor_csc_color_matrix;
1490 struct dc_surface_update {
1491 struct dc_plane_state *surface;
1493 /* isr safe update parameters. null means no updates */
1494 const struct dc_flip_addrs *flip_addr;
1495 const struct dc_plane_info *plane_info;
1496 const struct dc_scaling_info *scaling_info;
1497 struct fixed31_32 hdr_mult;
1498 /* following updates require alloc/sleep/spin that is not isr safe,
1499 * null means no updates
1501 const struct dc_gamma *gamma;
1502 const struct dc_transfer_func *in_transfer_func;
1504 const struct dc_csc_transform *input_csc_color_matrix;
1505 const struct fixed31_32 *coeff_reduction_factor;
1506 const struct dc_transfer_func *func_shaper;
1507 const struct dc_3dlut *lut3d_func;
1508 const struct dc_transfer_func *blend_tf;
1509 const struct colorspace_transform *gamut_remap_matrix;
1511 * Color Transformations for pre-blend MCM (Shaper, 3DLUT, 1DLUT)
1513 * change cm2_params.component_settings: Full update
1514 * change cm2_params.cm2_luts: Fast update
1516 struct dc_cm2_parameters *cm2_params;
1517 const struct dc_csc_transform *cursor_csc_color_matrix;
1518 unsigned int sdr_white_level_nits;
1522 * Create a new surface with default parameters;
1524 void dc_gamma_retain(struct dc_gamma *dc_gamma);
1525 void dc_gamma_release(struct dc_gamma **dc_gamma);
1526 struct dc_gamma *dc_create_gamma(void);
1528 void dc_transfer_func_retain(struct dc_transfer_func *dc_tf);
1529 void dc_transfer_func_release(struct dc_transfer_func *dc_tf);
1530 struct dc_transfer_func *dc_create_transfer_func(void);
1532 struct dc_3dlut *dc_create_3dlut_func(void);
1533 void dc_3dlut_func_release(struct dc_3dlut *lut);
1534 void dc_3dlut_func_retain(struct dc_3dlut *lut);
1536 void dc_post_update_surfaces_to_stream(
1539 #include "dc_stream.h"
1542 * struct dc_validation_set - Struct to store surface/stream associations for validation
1544 struct dc_validation_set {
1546 * @stream: Stream state properties
1548 struct dc_stream_state *stream;
1551 * @plane_states: Surface state
1553 struct dc_plane_state *plane_states[MAX_SURFACES];
1556 * @plane_count: Total of active planes
1558 uint8_t plane_count;
1561 bool dc_validate_boot_timing(const struct dc *dc,
1562 const struct dc_sink *sink,
1563 struct dc_crtc_timing *crtc_timing);
1565 enum dc_status dc_validate_plane(struct dc *dc, const struct dc_plane_state *plane_state);
1567 void get_clock_requirements_for_state(struct dc_state *state, struct AsicStateEx *info);
1569 enum dc_status dc_validate_with_context(struct dc *dc,
1570 const struct dc_validation_set set[],
1572 struct dc_state *context,
1573 bool fast_validate);
1575 bool dc_set_generic_gpio_for_stereo(bool enable,
1576 struct gpio_service *gpio_service);
1579 * fast_validate: we return after determining if we can support the new state,
1580 * but before we populate the programming info
1582 enum dc_status dc_validate_global_state(
1584 struct dc_state *new_ctx,
1585 bool fast_validate);
1587 bool dc_acquire_release_mpc_3dlut(
1588 struct dc *dc, bool acquire,
1589 struct dc_stream_state *stream,
1590 struct dc_3dlut **lut,
1591 struct dc_transfer_func **shaper);
1593 bool dc_resource_is_dsc_encoding_supported(const struct dc *dc);
1594 void get_audio_check(struct audio_info *aud_modes,
1595 struct audio_check *aud_chk);
1597 bool fast_nonaddr_updates_exist(struct dc_fast_update *fast_update, int surface_count);
1598 void populate_fast_updates(struct dc_fast_update *fast_update,
1599 struct dc_surface_update *srf_updates,
1601 struct dc_stream_update *stream_update);
1603 * Set up streams and links associated to drive sinks
1604 * The streams parameter is an absolute set of all active streams.
1607 * Phy, Encoder, Timing Generator are programmed and enabled.
1608 * New streams are enabled with blank stream; no memory read.
1610 enum dc_status dc_commit_streams(struct dc *dc, struct dc_commit_streams_params *params);
1613 struct dc_plane_state *dc_get_surface_for_mpcc(struct dc *dc,
1614 struct dc_stream_state *stream,
1618 uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane);
1620 void dc_set_disable_128b_132b_stream_overhead(bool disable);
1622 /* The function returns minimum bandwidth required to drive a given timing
1623 * return - minimum required timing bandwidth in kbps.
1625 uint32_t dc_bandwidth_in_kbps_from_timing(
1626 const struct dc_crtc_timing *timing,
1627 const enum dc_link_encoding_format link_encoding);
1629 /* Link Interfaces */
1631 * A link contains one or more sinks and their connected status.
1632 * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported.
1635 struct dc_sink *remote_sinks[MAX_SINKS_PER_LINK];
1636 unsigned int sink_count;
1637 struct dc_sink *local_sink;
1638 unsigned int link_index;
1639 enum dc_connection_type type;
1640 enum signal_type connector_signal;
1641 enum dc_irq_source irq_source_hpd;
1642 enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */
1644 bool is_hpd_filter_disabled;
1648 * @link_state_valid:
1650 * If there is no link and local sink, this variable should be set to
1651 * false. Otherwise, it should be set to true; usually, the function
1652 * core_link_enable_stream sets this field to true.
1654 bool link_state_valid;
1655 bool aux_access_disabled;
1656 bool sync_lt_in_progress;
1657 bool skip_stream_reenable;
1658 bool is_internal_display;
1659 /** @todo Rename. Flag an endpoint as having a programmable mapping to a DIG encoder. */
1660 bool is_dig_mapping_flexible;
1661 bool hpd_status; /* HPD status of link without physical HPD pin. */
1662 bool is_hpd_pending; /* Indicates a new received hpd */
1664 /* USB4 DPIA links skip verifying link cap, instead performing the fallback method
1665 * for every link training. This is incompatible with DP LL compliance automation,
1666 * which expects the same link settings to be used every retry on a link loss.
1667 * This flag is used to skip the fallback when link loss occurs during automation.
1669 bool skip_fallback_on_link_loss;
1671 bool edp_sink_present;
1673 struct dp_trace dp_trace;
1675 /* caps is the same as reported_link_cap. link_traing use
1676 * reported_link_cap. Will clean up. TODO
1678 struct dc_link_settings reported_link_cap;
1679 struct dc_link_settings verified_link_cap;
1680 struct dc_link_settings cur_link_settings;
1681 struct dc_lane_settings cur_lane_setting[LANE_COUNT_DP_MAX];
1682 struct dc_link_settings preferred_link_setting;
1683 /* preferred_training_settings are override values that
1684 * come from DM. DM is responsible for the memory
1685 * management of the override pointers.
1687 struct dc_link_training_overrides preferred_training_settings;
1688 struct dp_audio_test_data audio_test_data;
1690 uint8_t ddc_hw_inst;
1694 uint8_t link_enc_hw_inst;
1695 /* DIG link encoder ID. Used as index in link encoder resource pool.
1696 * For links with fixed mapping to DIG, this is not changed after dc_link
1699 enum engine_id eng_id;
1700 enum engine_id dpia_preferred_eng_id;
1702 bool test_pattern_enabled;
1703 /* Pending/Current test pattern are only used to perform and track
1704 * FIXED_VS retimer test pattern/lane adjustment override state.
1705 * Pending allows link HWSS to differentiate PHY vs non-PHY pattern,
1706 * to perform specific lane adjust overrides before setting certain
1707 * PHY test patterns. In cases when lane adjust and set test pattern
1708 * calls are not performed atomically (i.e. performing link training),
1709 * pending_test_pattern will be invalid or contain a non-PHY test pattern
1710 * and current_test_pattern will contain required context for any future
1711 * set pattern/set lane adjust to transition between override state(s).
1713 enum dp_test_pattern current_test_pattern;
1714 enum dp_test_pattern pending_test_pattern;
1716 union compliance_test_state compliance_test_state;
1720 struct ddc_service *ddc;
1722 enum dp_panel_mode panel_mode;
1725 /* Private to DC core */
1727 const struct dc *dc;
1729 struct dc_context *ctx;
1731 struct panel_cntl *panel_cntl;
1732 struct link_encoder *link_enc;
1733 struct graphics_object_id link_id;
1734 /* Endpoint type distinguishes display endpoints which do not have entries
1735 * in the BIOS connector table from those that do. Helps when tracking link
1736 * encoder to display endpoint assignments.
1738 enum display_endpoint_type ep_type;
1739 union ddi_channel_mapping ddi_channel_mapping;
1740 struct connector_device_tag_info device_tag;
1741 struct dpcd_caps dpcd_caps;
1742 uint32_t dongle_max_pix_clk;
1743 unsigned short chip_caps;
1744 unsigned int dpcd_sink_count;
1745 struct hdcp_caps hdcp_caps;
1746 enum edp_revision edp_revision;
1747 union dpcd_sink_ext_caps dpcd_sink_ext_caps;
1749 struct psr_settings psr_settings;
1750 struct replay_settings replay_settings;
1752 /* Drive settings read from integrated info table */
1753 struct dc_lane_settings bios_forced_drive_settings;
1755 /* Vendor specific LTTPR workaround variables */
1756 uint8_t vendor_specific_lttpr_link_rate_wa;
1757 bool apply_vendor_specific_lttpr_link_rate_wa;
1759 /* MST record stream using this link */
1761 bool dp_keep_receiver_powered;
1763 bool dp_skip_reset_segment;
1764 bool dp_skip_fs_144hz;
1765 bool dp_mot_reset_segment;
1766 /* Some USB4 docks do not handle turning off MST DSC once it has been enabled. */
1767 bool dpia_mst_dsc_always_on;
1768 /* Forced DPIA into TBT3 compatibility mode. */
1769 bool dpia_forced_tbt3_mode;
1770 bool dongle_mode_timing_override;
1771 bool blank_stream_on_ocs_change;
1772 bool read_dpcd204h_on_irq_hpd;
1773 bool disable_assr_for_uhbr;
1775 struct link_mst_stream_allocation_table mst_stream_alloc_table;
1777 struct dc_link_status link_status;
1778 struct dprx_states dprx_states;
1780 struct gpio *hpd_gpio;
1781 enum dc_link_fec_state fec_state;
1782 bool link_powered_externally; // Used to bypass hardware sequencing delays when panel is powered down forcibly
1784 struct dc_panel_config panel_config;
1785 struct phy_state phy_state;
1786 // BW ALLOCATON USB4 ONLY
1787 struct dc_dpia_bw_alloc dpia_bw_alloc_config;
1788 bool skip_implict_edp_power_control;
1791 /* Return an enumerated dc_link.
1792 * dc_link order is constant and determined at
1793 * boot time. They cannot be created or destroyed.
1794 * Use dc_get_caps() to get number of links.
1796 struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_index);
1798 /* Return instance id of the edp link. Inst 0 is primary edp link. */
1799 bool dc_get_edp_link_panel_inst(const struct dc *dc,
1800 const struct dc_link *link,
1801 unsigned int *inst_out);
1803 /* Return an array of link pointers to edp links. */
1804 void dc_get_edp_links(const struct dc *dc,
1805 struct dc_link **edp_links,
1808 void dc_set_edp_power(const struct dc *dc, struct dc_link *edp_link,
1811 /* The function initiates detection handshake over the given link. It first
1812 * determines if there are display connections over the link. If so it initiates
1813 * detection protocols supported by the connected receiver device. The function
1814 * contains protocol specific handshake sequences which are sometimes mandatory
1815 * to establish a proper connection between TX and RX. So it is always
1816 * recommended to call this function as the first link operation upon HPD event
1817 * or power up event. Upon completion, the function will update link structure
1818 * in place based on latest RX capabilities. The function may also cause dpms
1819 * to be reset to off for all currently enabled streams to the link. It is DM's
1820 * responsibility to serialize detection and DPMS updates.
1822 * @reason - Indicate which event triggers this detection. dc may customize
1823 * detection flow depending on the triggering events.
1824 * return false - if detection is not fully completed. This could happen when
1825 * there is an unrecoverable error during detection or detection is partially
1826 * completed (detection has been delegated to dm mst manager ie.
1827 * link->connection_type == dc_connection_mst_branch when returning false).
1828 * return true - detection is completed, link has been fully updated with latest
1831 bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason);
1833 struct dc_sink_init_data;
1835 /* When link connection type is dc_connection_mst_branch, remote sink can be
1836 * added to the link. The interface creates a remote sink and associates it with
1837 * current link. The sink will be retained by link until remove remote sink is
1840 * @dc_link - link the remote sink will be added to.
1841 * @edid - byte array of EDID raw data.
1842 * @len - size of the edid in byte
1845 struct dc_sink *dc_link_add_remote_sink(
1846 struct dc_link *dc_link,
1847 const uint8_t *edid,
1849 struct dc_sink_init_data *init_data);
1851 /* Remove remote sink from a link with dc_connection_mst_branch connection type.
1852 * @link - link the sink should be removed from
1853 * @sink - sink to be removed.
1855 void dc_link_remove_remote_sink(
1856 struct dc_link *link,
1857 struct dc_sink *sink);
1859 /* Enable HPD interrupt handler for a given link */
1860 void dc_link_enable_hpd(const struct dc_link *link);
1862 /* Disable HPD interrupt handler for a given link */
1863 void dc_link_disable_hpd(const struct dc_link *link);
1865 /* determine if there is a sink connected to the link
1867 * @type - dc_connection_single if connected, dc_connection_none otherwise.
1868 * return - false if an unexpected error occurs, true otherwise.
1870 * NOTE: This function doesn't detect downstream sink connections i.e
1871 * dc_connection_mst_branch, dc_connection_sst_branch. In this case, it will
1872 * return dc_connection_single if the branch device is connected despite of
1873 * downstream sink's connection status.
1875 bool dc_link_detect_connection_type(struct dc_link *link,
1876 enum dc_connection_type *type);
1878 /* query current hpd pin value
1879 * return - true HPD is asserted (HPD high), false otherwise (HPD low)
1882 bool dc_link_get_hpd_state(struct dc_link *link);
1884 /* Getter for cached link status from given link */
1885 const struct dc_link_status *dc_link_get_status(const struct dc_link *link);
1887 /* enable/disable hardware HPD filter.
1889 * @link - The link the HPD pin is associated with.
1890 * @enable = true - enable hardware HPD filter. HPD event will only queued to irq
1891 * handler once after no HPD change has been detected within dc default HPD
1892 * filtering interval since last HPD event. i.e if display keeps toggling hpd
1893 * pulses within default HPD interval, no HPD event will be received until HPD
1894 * toggles have stopped. Then HPD event will be queued to irq handler once after
1895 * dc default HPD filtering interval since last HPD event.
1897 * @enable = false - disable hardware HPD filter. HPD event will be queued
1898 * immediately to irq handler after no HPD change has been detected within
1899 * IRQ_HPD (aka HPD short pulse) interval (i.e 2ms).
1901 void dc_link_enable_hpd_filter(struct dc_link *link, bool enable);
1903 /* submit i2c read/write payloads through ddc channel
1904 * @link_index - index to a link with ddc in i2c mode
1905 * @cmd - i2c command structure
1906 * return - true if success, false otherwise.
1910 uint32_t link_index,
1911 struct i2c_command *cmd);
1913 /* submit i2c read/write payloads through oem channel
1914 * @link_index - index to a link with ddc in i2c mode
1915 * @cmd - i2c command structure
1916 * return - true if success, false otherwise.
1918 bool dc_submit_i2c_oem(
1920 struct i2c_command *cmd);
1922 enum aux_return_code_type;
1923 /* Attempt to transfer the given aux payload. This function does not perform
1924 * retries or handle error states. The reply is returned in the payload->reply
1925 * and the result through operation_result. Returns the number of bytes
1926 * transferred,or -1 on a failure.
1928 int dc_link_aux_transfer_raw(struct ddc_service *ddc,
1929 struct aux_payload *payload,
1930 enum aux_return_code_type *operation_result);
1932 bool dc_is_oem_i2c_device_present(
1934 size_t slave_address
1937 /* return true if the connected receiver supports the hdcp version */
1938 bool dc_link_is_hdcp14(struct dc_link *link, enum signal_type signal);
1939 bool dc_link_is_hdcp22(struct dc_link *link, enum signal_type signal);
1941 /* Notify DC about DP RX Interrupt (aka DP IRQ_HPD).
1943 * TODO - When defer_handling is true the function will have a different purpose.
1944 * It no longer does complete hpd rx irq handling. We should create a separate
1945 * interface specifically for this case.
1948 * true - Downstream port status changed. DM should call DC to do the
1950 * false - no change in Downstream port status. No further action required
1953 bool dc_link_handle_hpd_rx_irq(struct dc_link *dc_link,
1954 union hpd_irq_data *hpd_irq_dpcd_data, bool *out_link_loss,
1955 bool defer_handling, bool *has_left_work);
1956 /* handle DP specs define test automation sequence*/
1957 void dc_link_dp_handle_automated_test(struct dc_link *link);
1959 /* handle DP Link loss sequence and try to recover RX link loss with best
1962 void dc_link_dp_handle_link_loss(struct dc_link *link);
1964 /* Determine if hpd rx irq should be handled or ignored
1965 * return true - hpd rx irq should be handled.
1966 * return false - it is safe to ignore hpd rx irq event
1968 bool dc_link_dp_allow_hpd_rx_irq(const struct dc_link *link);
1970 /* Determine if link loss is indicated with a given hpd_irq_dpcd_data.
1971 * @link - link the hpd irq data associated with
1972 * @hpd_irq_dpcd_data - input hpd irq data
1973 * return - true if hpd irq data indicates a link lost
1975 bool dc_link_check_link_loss_status(struct dc_link *link,
1976 union hpd_irq_data *hpd_irq_dpcd_data);
1978 /* Read hpd rx irq data from a given link
1979 * @link - link where the hpd irq data should be read from
1980 * @irq_data - output hpd irq data
1981 * return - DC_OK if hpd irq data is read successfully, otherwise hpd irq data
1984 enum dc_status dc_link_dp_read_hpd_rx_irq_data(
1985 struct dc_link *link,
1986 union hpd_irq_data *irq_data);
1988 /* The function clears recorded DP RX states in the link. DM should call this
1989 * function when it is resuming from S3 power state to previously connected links.
1991 * TODO - in the future we should consider to expand link resume interface to
1992 * support clearing previous rx states. So we don't have to rely on dm to call
1993 * this interface explicitly.
1995 void dc_link_clear_dprx_states(struct dc_link *link);
1997 /* Destruct the mst topology of the link and reset the allocated payload table
1999 * NOTE: this should only be called if DM chooses not to call dc_link_detect but
2000 * still wants to reset MST topology on an unplug event */
2001 bool dc_link_reset_cur_dp_mst_topology(struct dc_link *link);
2003 /* The function calculates effective DP link bandwidth when a given link is
2004 * using the given link settings.
2006 * return - total effective link bandwidth in kbps.
2008 uint32_t dc_link_bandwidth_kbps(
2009 const struct dc_link *link,
2010 const struct dc_link_settings *link_setting);
2012 /* The function takes a snapshot of current link resource allocation state
2013 * @dc: pointer to dc of the dm calling this
2014 * @map: a dc link resource snapshot defined internally to dc.
2016 * DM needs to capture a snapshot of current link resource allocation mapping
2017 * and store it in its persistent storage.
2019 * Some of the link resource is using first come first serve policy.
2020 * The allocation mapping depends on original hotplug order. This information
2021 * is lost after driver is loaded next time. The snapshot is used in order to
2022 * restore link resource to its previous state so user will get consistent
2023 * link capability allocation across reboot.
2026 void dc_get_cur_link_res_map(const struct dc *dc, uint32_t *map);
2028 /* This function restores link resource allocation state from a snapshot
2029 * @dc: pointer to dc of the dm calling this
2030 * @map: a dc link resource snapshot defined internally to dc.
2032 * DM needs to call this function after initial link detection on boot and
2033 * before first commit streams to restore link resource allocation state
2034 * from previous boot session.
2036 * Some of the link resource is using first come first serve policy.
2037 * The allocation mapping depends on original hotplug order. This information
2038 * is lost after driver is loaded next time. The snapshot is used in order to
2039 * restore link resource to its previous state so user will get consistent
2040 * link capability allocation across reboot.
2043 void dc_restore_link_res_map(const struct dc *dc, uint32_t *map);
2045 /* TODO: this is not meant to be exposed to DM. Should switch to stream update
2046 * interface i.e stream_update->dsc_config
2048 bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx);
2050 /* translate a raw link rate data to bandwidth in kbps */
2051 uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw);
2053 /* determine the optimal bandwidth given link and required bw.
2054 * @link - current detected link
2055 * @req_bw - requested bandwidth in kbps
2056 * @link_settings - returned most optimal link settings that can fit the
2057 * requested bandwidth
2058 * return - false if link can't support requested bandwidth, true if link
2059 * settings is found.
2061 bool dc_link_decide_edp_link_settings(struct dc_link *link,
2062 struct dc_link_settings *link_settings,
2065 /* return the max dp link settings can be driven by the link without considering
2066 * connected RX device and its capability
2068 bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link,
2069 struct dc_link_settings *max_link_enc_cap);
2071 /* determine when the link is driving MST mode, what DP link channel coding
2072 * format will be used. The decision will remain unchanged until next HPD event.
2074 * @link - a link with DP RX connection
2075 * return - if stream is committed to this link with MST signal type, type of
2076 * channel coding format dc will choose.
2078 enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format(
2079 const struct dc_link *link);
2081 /* get max dp link settings the link can enable with all things considered. (i.e
2082 * TX/RX/Cable capabilities and dp override policies.
2084 * @link - a link with DP RX connection
2085 * return - max dp link settings the link can enable.
2088 const struct dc_link_settings *dc_link_get_link_cap(const struct dc_link *link);
2090 /* Get the highest encoding format that the link supports; highest meaning the
2091 * encoding format which supports the maximum bandwidth.
2093 * @link - a link with DP RX connection
2094 * return - highest encoding format link supports.
2096 enum dc_link_encoding_format dc_link_get_highest_encoding_format(const struct dc_link *link);
2098 /* Check if a RX (ex. DP sink, MST hub, passive or active dongle) is connected
2099 * to a link with dp connector signal type.
2100 * @link - a link with dp connector signal type
2101 * return - true if connected, false otherwise
2103 bool dc_link_is_dp_sink_present(struct dc_link *link);
2105 /* Force DP lane settings update to main-link video signal and notify the change
2106 * to DP RX via DPCD. This is a debug interface used for video signal integrity
2107 * tuning purpose. The interface assumes link has already been enabled with DP
2110 * @lt_settings - a container structure with desired hw_lane_settings
2112 void dc_link_set_drive_settings(struct dc *dc,
2113 struct link_training_settings *lt_settings,
2114 struct dc_link *link);
2116 /* Enable a test pattern in Link or PHY layer in an active link for compliance
2117 * test or debugging purpose. The test pattern will remain until next un-plug.
2119 * @link - active link with DP signal output enabled.
2120 * @test_pattern - desired test pattern to output.
2121 * NOTE: set to DP_TEST_PATTERN_VIDEO_MODE to disable previous test pattern.
2122 * @test_pattern_color_space - for video test pattern choose a desired color
2124 * @p_link_settings - For PHY pattern choose a desired link settings
2125 * @p_custom_pattern - some test pattern will require a custom input to
2126 * customize some pattern details. Otherwise keep it to NULL.
2127 * @cust_pattern_size - size of the custom pattern input.
2130 bool dc_link_dp_set_test_pattern(
2131 struct dc_link *link,
2132 enum dp_test_pattern test_pattern,
2133 enum dp_test_pattern_color_space test_pattern_color_space,
2134 const struct link_training_settings *p_link_settings,
2135 const unsigned char *p_custom_pattern,
2136 unsigned int cust_pattern_size);
2138 /* Force DP link settings to always use a specific value until reboot to a
2139 * specific link. If link has already been enabled, the interface will also
2140 * switch to desired link settings immediately. This is a debug interface to
2141 * generic dp issue trouble shooting.
2143 void dc_link_set_preferred_link_settings(struct dc *dc,
2144 struct dc_link_settings *link_setting,
2145 struct dc_link *link);
2147 /* Force DP link to customize a specific link training behavior by overriding to
2148 * standard DP specs defined protocol. This is a debug interface to trouble shoot
2149 * display specific link training issues or apply some display specific
2150 * workaround in link training.
2152 * @link_settings - if not NULL, force preferred link settings to the link.
2153 * @lt_override - a set of override pointers. If any pointer is none NULL, dc
2154 * will apply this particular override in future link training. If NULL is
2155 * passed in, dc resets previous overrides.
2156 * NOTE: DM must keep the memory from override pointers until DM resets preferred
2157 * training settings.
2159 void dc_link_set_preferred_training_settings(struct dc *dc,
2160 struct dc_link_settings *link_setting,
2161 struct dc_link_training_overrides *lt_overrides,
2162 struct dc_link *link,
2163 bool skip_immediate_retrain);
2165 /* return - true if FEC is supported with connected DP RX, false otherwise */
2166 bool dc_link_is_fec_supported(const struct dc_link *link);
2168 /* query FEC enablement policy to determine if FEC will be enabled by dc during
2170 * return - true if FEC should be enabled, false otherwise.
2172 bool dc_link_should_enable_fec(const struct dc_link *link);
2174 /* determine lttpr mode the current link should be enabled with a specific link
2177 enum lttpr_mode dc_link_decide_lttpr_mode(struct dc_link *link,
2178 struct dc_link_settings *link_setting);
2180 /* Force DP RX to update its power state.
2181 * NOTE: this interface doesn't update dp main-link. Calling this function will
2182 * cause DP TX main-link and DP RX power states out of sync. DM has to restore
2183 * RX power state back upon finish DM specific execution requiring DP RX in a
2184 * specific power state.
2185 * @on - true to set DP RX in D0 power state, false to set DP RX in D3 power
2188 void dc_link_dp_receiver_power_ctrl(struct dc_link *link, bool on);
2190 /* Force link to read base dp receiver caps from dpcd 000h - 00Fh and overwrite
2191 * current value read from extended receiver cap from 02200h - 0220Fh.
2192 * Some DP RX has problems of providing accurate DP receiver caps from extended
2193 * field, this interface is a workaround to revert link back to use base caps.
2195 void dc_link_overwrite_extended_receiver_cap(
2196 struct dc_link *link);
2198 void dc_link_edp_panel_backlight_power_on(struct dc_link *link,
2201 /* Set backlight level of an embedded panel (eDP, LVDS).
2202 * backlight_pwm_u16_16 is unsigned 32 bit with 16 bit integer
2203 * and 16 bit fractional, where 1.0 is max backlight value.
2205 bool dc_link_set_backlight_level(const struct dc_link *dc_link,
2206 uint32_t backlight_pwm_u16_16,
2207 uint32_t frame_ramp);
2209 /* Set/get nits-based backlight level of an embedded panel (eDP, LVDS). */
2210 bool dc_link_set_backlight_level_nits(struct dc_link *link,
2212 uint32_t backlight_millinits,
2213 uint32_t transition_time_in_ms);
2215 bool dc_link_get_backlight_level_nits(struct dc_link *link,
2216 uint32_t *backlight_millinits,
2217 uint32_t *backlight_millinits_peak);
2219 int dc_link_get_backlight_level(const struct dc_link *dc_link);
2221 int dc_link_get_target_backlight_pwm(const struct dc_link *link);
2223 bool dc_link_set_psr_allow_active(struct dc_link *dc_link, const bool *enable,
2224 bool wait, bool force_static, const unsigned int *power_opts);
2226 bool dc_link_get_psr_state(const struct dc_link *dc_link, enum dc_psr_state *state);
2228 bool dc_link_setup_psr(struct dc_link *dc_link,
2229 const struct dc_stream_state *stream, struct psr_config *psr_config,
2230 struct psr_context *psr_context);
2233 * Communicate with DMUB to allow or disallow Panel Replay on the specified link:
2235 * @link: pointer to the dc_link struct instance
2236 * @enable: enable(active) or disable(inactive) replay
2237 * @wait: state transition need to wait the active set completed.
2238 * @force_static: force disable(inactive) the replay
2239 * @power_opts: set power optimazation parameters to DMUB.
2241 * return: allow Replay active will return true, else will return false.
2243 bool dc_link_set_replay_allow_active(struct dc_link *dc_link, const bool *enable,
2244 bool wait, bool force_static, const unsigned int *power_opts);
2246 bool dc_link_get_replay_state(const struct dc_link *dc_link, uint64_t *state);
2248 /* On eDP links this function call will stall until T12 has elapsed.
2249 * If the panel is not in power off state, this function will return
2252 bool dc_link_wait_for_t12(struct dc_link *link);
2254 /* Determine if dp trace has been initialized to reflect upto date result *
2255 * return - true if trace is initialized and has valid data. False dp trace
2256 * doesn't have valid result.
2258 bool dc_dp_trace_is_initialized(struct dc_link *link);
2260 /* Query a dp trace flag to indicate if the current dp trace data has been
2263 bool dc_dp_trace_is_logged(struct dc_link *link,
2266 /* Set dp trace flag to indicate whether DM has already logged the current dp
2267 * trace data. DM can set is_logged to true upon logging and check
2268 * dc_dp_trace_is_logged before logging to avoid logging the same result twice.
2270 void dc_dp_trace_set_is_logged_flag(struct dc_link *link,
2274 /* Obtain driver time stamp for last dp link training end. The time stamp is
2275 * formatted based on dm_get_timestamp DM function.
2276 * @in_detection - true to get link training end time stamp of last link
2277 * training in detection sequence. false to get link training end time stamp
2278 * of last link training in commit (dpms) sequence
2280 unsigned long long dc_dp_trace_get_lt_end_timestamp(struct dc_link *link,
2283 /* Get how many link training attempts dc has done with latest sequence.
2284 * @in_detection - true to get link training count of last link
2285 * training in detection sequence. false to get link training count of last link
2286 * training in commit (dpms) sequence
2288 const struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link,
2291 /* Get how many link loss has happened since last link training attempts */
2292 unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link);
2295 * USB4 DPIA BW ALLOCATION PUBLIC FUNCTIONS
2298 * Send a request from DP-Tx requesting to allocate BW remotely after
2299 * allocating it locally. This will get processed by CM and a CB function
2302 * @link: pointer to the dc_link struct instance
2303 * @req_bw: The requested bw in Kbyte to allocated
2307 void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw);
2310 * Handle function for when the status of the Request above is complete.
2311 * We will find out the result of allocating on CM and update structs.
2313 * @link: pointer to the dc_link struct instance
2314 * @bw: Allocated or Estimated BW depending on the result
2315 * @result: Response type
2319 void dc_link_handle_usb4_bw_alloc_response(struct dc_link *link,
2320 uint8_t bw, uint8_t result);
2323 * Handle the USB4 BW Allocation related functionality here:
2324 * Plug => Try to allocate max bw from timing parameters supported by the sink
2325 * Unplug => de-allocate bw
2327 * @link: pointer to the dc_link struct instance
2328 * @peak_bw: Peak bw used by the link/sink
2330 * return: allocated bw else return 0
2332 int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link(
2333 struct dc_link *link, int peak_bw);
2336 * Validate the BW of all the valid DPIA links to make sure it doesn't exceed
2337 * available BW for each host router
2339 * @dc: pointer to dc struct
2340 * @stream: pointer to all possible streams
2341 * @count: number of valid DPIA streams
2343 * return: TRUE if bw used by DPIAs doesn't exceed available BW else return FALSE
2345 bool dc_link_dp_dpia_validate(struct dc *dc, const struct dc_stream_state *streams,
2346 const unsigned int count);
2348 /* Sink Interfaces - A sink corresponds to a display output device */
2350 struct dc_container_id {
2351 // 128bit GUID in binary form
2352 unsigned char guid[16];
2353 // 8 byte port ID -> ELD.PortID
2354 unsigned int portId[2];
2355 // 128bit GUID in binary formufacturer name -> ELD.ManufacturerName
2356 unsigned short manufacturerName;
2357 // 2 byte product code -> ELD.ProductCode
2358 unsigned short productCode;
2362 struct dc_sink_dsc_caps {
2363 // 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology),
2364 // 'false' if they are sink's DSC caps
2365 bool is_virtual_dpcd_dsc;
2366 // 'true' if MST topology supports DSC passthrough for sink
2367 // 'false' if MST topology does not support DSC passthrough
2368 bool is_dsc_passthrough_supported;
2369 struct dsc_dec_dpcd_caps dsc_dec_caps;
2372 struct dc_sink_fec_caps {
2373 bool is_rx_fec_supported;
2374 bool is_topology_fec_supported;
2378 union hdmi_scdc_manufacturer_OUI_data manufacturer_OUI;
2379 union hdmi_scdc_device_id_data device_id;
2383 * The sink structure contains EDID and other display device properties
2386 enum signal_type sink_signal;
2387 struct dc_edid dc_edid; /* raw edid */
2388 struct dc_edid_caps edid_caps; /* parse display caps */
2389 struct dc_container_id *dc_container_id;
2390 uint32_t dongle_max_pix_clk;
2392 struct stereo_3d_features features_3d[TIMING_3D_FORMAT_MAX];
2393 bool converter_disable_audio;
2395 struct scdc_caps scdc_caps;
2396 struct dc_sink_dsc_caps dsc_caps;
2397 struct dc_sink_fec_caps fec_caps;
2399 bool is_vsc_sdp_colorimetry_supported;
2401 /* private to DC core */
2402 struct dc_link *link;
2403 struct dc_context *ctx;
2407 /* private to dc_sink.c */
2408 // refcount must be the last member in dc_sink, since we want the
2409 // sink structure to be logically cloneable up to (but not including)
2411 struct kref refcount;
2414 void dc_sink_retain(struct dc_sink *sink);
2415 void dc_sink_release(struct dc_sink *sink);
2417 struct dc_sink_init_data {
2418 enum signal_type sink_signal;
2419 struct dc_link *link;
2420 uint32_t dongle_max_pix_clk;
2421 bool converter_disable_audio;
2424 struct dc_sink *dc_sink_create(const struct dc_sink_init_data *init_params);
2426 /* Newer interfaces */
2428 struct dc_plane_address address;
2429 struct dc_cursor_attributes attributes;
2433 /* Interrupt interfaces */
2434 enum dc_irq_source dc_interrupt_to_irq_source(
2438 bool dc_interrupt_set(struct dc *dc, enum dc_irq_source src, bool enable);
2439 void dc_interrupt_ack(struct dc *dc, enum dc_irq_source src);
2440 enum dc_irq_source dc_get_hpd_irq_source_at_index(
2441 struct dc *dc, uint32_t link_index);
2443 void dc_notify_vsync_int_state(struct dc *dc, struct dc_stream_state *stream, bool enable);
2445 /* Power Interfaces */
2447 void dc_set_power_state(
2449 enum dc_acpi_cm_power_state power_state);
2450 void dc_resume(struct dc *dc);
2452 void dc_power_down_on_boot(struct dc *dc);
2457 enum hdcp_message_status dc_process_hdcp_msg(
2458 enum signal_type signal,
2459 struct dc_link *link,
2460 struct hdcp_protection_message *message_info);
2461 bool dc_is_dmcu_initialized(struct dc *dc);
2463 enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping);
2464 void dc_get_clock(struct dc *dc, enum dc_clock_type clock_type, struct dc_clock_config *clock_cfg);
2466 bool dc_is_plane_eligible_for_idle_optimizations(struct dc *dc,
2468 unsigned int height,
2469 enum surface_pixel_format format,
2470 struct dc_cursor_attributes *cursor_attr);
2472 #define dc_allow_idle_optimizations(dc, allow) dc_allow_idle_optimizations_internal(dc, allow, __func__)
2473 #define dc_exit_ips_for_hw_access(dc) dc_exit_ips_for_hw_access_internal(dc, __func__)
2475 void dc_allow_idle_optimizations_internal(struct dc *dc, bool allow, const char *caller_name);
2476 void dc_exit_ips_for_hw_access_internal(struct dc *dc, const char *caller_name);
2477 bool dc_dmub_is_ips_idle_state(struct dc *dc);
2479 /* set min and max memory clock to lowest and highest DPM level, respectively */
2480 void dc_unlock_memory_clock_frequency(struct dc *dc);
2482 /* set min memory clock to the min required for current mode, max to maxDPM */
2483 void dc_lock_memory_clock_frequency(struct dc *dc);
2485 /* set soft max for memclk, to be used for AC/DC switching clock limitations */
2486 void dc_enable_dcmode_clk_limit(struct dc *dc, bool enable);
2488 /* cleanup on driver unload */
2489 void dc_hardware_release(struct dc *dc);
2491 /* disables fw based mclk switch */
2492 void dc_mclk_switch_using_fw_based_vblank_stretch_shut_down(struct dc *dc);
2494 bool dc_set_psr_allow_active(struct dc *dc, bool enable);
2496 bool dc_set_replay_allow_active(struct dc *dc, bool active);
2498 bool dc_set_ips_disable(struct dc *dc, unsigned int disable_ips);
2500 void dc_z10_restore(const struct dc *dc);
2501 void dc_z10_save_init(struct dc *dc);
2503 bool dc_is_dmub_outbox_supported(struct dc *dc);
2504 bool dc_enable_dmub_notifications(struct dc *dc);
2506 bool dc_abm_save_restore(
2508 struct dc_stream_state *stream,
2509 struct abm_save_restore *pData);
2511 void dc_enable_dmub_outbox(struct dc *dc);
2513 bool dc_process_dmub_aux_transfer_async(struct dc *dc,
2514 uint32_t link_index,
2515 struct aux_payload *payload);
2517 /* Get dc link index from dpia port index */
2518 uint8_t get_link_index_from_dpia_port_index(const struct dc *dc,
2519 uint8_t dpia_port_index);
2521 bool dc_process_dmub_set_config_async(struct dc *dc,
2522 uint32_t link_index,
2523 struct set_config_cmd_payload *payload,
2524 struct dmub_notification *notify);
2526 enum dc_status dc_process_dmub_set_mst_slots(const struct dc *dc,
2527 uint32_t link_index,
2528 uint8_t mst_alloc_slots,
2529 uint8_t *mst_slots_in_use);
2531 void dc_process_dmub_dpia_set_tps_notification(const struct dc *dc, uint32_t link_index, uint8_t tps);
2533 void dc_process_dmub_dpia_hpd_int_enable(const struct dc *dc,
2534 uint32_t hpd_int_enable);
2536 void dc_print_dmub_diagnostic_data(const struct dc *dc);
2538 void dc_query_current_properties(struct dc *dc, struct dc_current_properties *properties);
2540 struct dc_power_profile {
2541 int power_level; /* Lower is better */
2544 struct dc_power_profile dc_get_power_profile_for_dc_state(const struct dc_state *context);
2546 /* DSC Interfaces */
2549 /* Disable acc mode Interfaces */
2550 void dc_disable_accelerated_mode(struct dc *dc);
2552 bool dc_is_timing_changed(struct dc_stream_state *cur_stream,
2553 struct dc_stream_state *new_stream);
2555 #endif /* DC_INTERFACE_H_ */