diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 607 |
1 files changed, 580 insertions, 27 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 1fde43378689..30f0ba05a6e6 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -29,9 +29,7 @@ #include "dc_types.h" #include "grph_object_defs.h" #include "logger_types.h" -#if defined(CONFIG_DRM_AMD_DC_HDCP) -#include "hdcp_types.h" -#endif +#include "hdcp_msg_types.h" #include "gpio_types.h" #include "link_service_types.h" #include "grph_object_ctrl_defs.h" @@ -47,7 +45,7 @@ struct aux_payload; struct set_config_cmd_payload; struct dmub_notification; -#define DC_VER "3.2.223" +#define DC_VER "3.2.230" #define MAX_SURFACES 3 #define MAX_PLANES 6 @@ -84,8 +82,6 @@ enum det_size { struct dc_plane_cap { enum dc_plane_type type; - uint32_t blends_with_above : 1; - uint32_t blends_with_below : 1; uint32_t per_pixel_alpha : 1; struct { uint32_t argb8888 : 1; @@ -409,6 +405,7 @@ struct dc_config { bool force_bios_enable_lttpr; uint8_t force_bios_fixed_vs; int sdpif_request_limit_words_per_umc; + bool use_old_fixed_vs_sequence; bool disable_subvp_drr; }; @@ -716,6 +713,7 @@ struct dc_bounding_box_overrides { struct dc_state; struct resource_pool; struct dce_hwseq; +struct link_service; /** * struct dc_debug_options - DC debug struct @@ -795,6 +793,7 @@ struct dc_debug_options { unsigned int force_odm_combine; //bit vector based on otg inst unsigned int seamless_boot_odm_combine; unsigned int force_odm_combine_4to1; //bit vector based on otg inst + int minimum_z8_residency_time; bool disable_z9_mpc; unsigned int force_fclk_khz; bool enable_tri_buf; @@ -874,6 +873,12 @@ struct dc_debug_options { bool disable_unbounded_requesting; bool dig_fifo_off_in_blank; bool temp_mst_deallocation_sequence; + bool override_dispclk_programming; + bool disable_fpo_optimizations; + bool support_eDP1_5; + uint32_t fpo_vactive_margin_us; + bool disable_fpo_vactive; + bool disable_boot_optimizations; }; struct gpu_info_soc_bounding_box_v1_0; @@ -890,6 +895,7 @@ struct dc { uint8_t link_count; struct dc_link *links[MAX_PIPES * 2]; + struct link_service *link_srv; struct dc_state *current_state; struct resource_pool *res_pool; @@ -991,11 +997,7 @@ struct dc_init_data { }; struct dc_callback_init { -#ifdef CONFIG_DRM_AMD_DC_HDCP struct cp_psp cp_psp; -#else - uint8_t reserved; -#endif }; struct dc *dc_create(const struct dc_init_data *init_params); @@ -1362,10 +1364,6 @@ enum dc_status dc_commit_streams(struct dc *dc, struct dc_stream_state *streams[], uint8_t stream_count); -/* TODO: When the transition to the new commit sequence is done, remove this - * function in favor of dc_commit_streams. */ -bool dc_commit_state(struct dc *dc, struct dc_state *context); - struct dc_state *dc_create_state(struct dc *dc); struct dc_state *dc_copy_state(struct dc_state *src_ctx); void dc_retain_state(struct dc_state *context); @@ -1378,9 +1376,164 @@ struct dc_plane_state *dc_get_surface_for_mpcc(struct dc *dc, uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane); +/* The function returns minimum bandwidth required to drive a given timing + * return - minimum required timing bandwidth in kbps. + */ +uint32_t dc_bandwidth_in_kbps_from_timing(const struct dc_crtc_timing *timing); + /* Link Interfaces */ -/* TODO: remove this after resolving external dependencies */ -#include "dc_link.h" +/* + * A link contains one or more sinks and their connected status. + * The currently active signal type (HDMI, DP-SST, DP-MST) is also reported. + */ +struct dc_link { + struct dc_sink *remote_sinks[MAX_SINKS_PER_LINK]; + unsigned int sink_count; + struct dc_sink *local_sink; + unsigned int link_index; + enum dc_connection_type type; + enum signal_type connector_signal; + enum dc_irq_source irq_source_hpd; + enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */ + + bool is_hpd_filter_disabled; + bool dp_ss_off; + + /** + * @link_state_valid: + * + * If there is no link and local sink, this variable should be set to + * false. Otherwise, it should be set to true; usually, the function + * core_link_enable_stream sets this field to true. + */ + bool link_state_valid; + bool aux_access_disabled; + bool sync_lt_in_progress; + bool skip_stream_reenable; + bool is_internal_display; + /** @todo Rename. Flag an endpoint as having a programmable mapping to a DIG encoder. */ + bool is_dig_mapping_flexible; + bool hpd_status; /* HPD status of link without physical HPD pin. */ + bool is_hpd_pending; /* Indicates a new received hpd */ + bool is_automated; /* Indicates automated testing */ + + bool edp_sink_present; + + struct dp_trace dp_trace; + + /* caps is the same as reported_link_cap. link_traing use + * reported_link_cap. Will clean up. TODO + */ + struct dc_link_settings reported_link_cap; + struct dc_link_settings verified_link_cap; + struct dc_link_settings cur_link_settings; + struct dc_lane_settings cur_lane_setting[LANE_COUNT_DP_MAX]; + struct dc_link_settings preferred_link_setting; + /* preferred_training_settings are override values that + * come from DM. DM is responsible for the memory + * management of the override pointers. + */ + struct dc_link_training_overrides preferred_training_settings; + struct dp_audio_test_data audio_test_data; + + uint8_t ddc_hw_inst; + + uint8_t hpd_src; + + uint8_t link_enc_hw_inst; + /* DIG link encoder ID. Used as index in link encoder resource pool. + * For links with fixed mapping to DIG, this is not changed after dc_link + * object creation. + */ + enum engine_id eng_id; + + bool test_pattern_enabled; + union compliance_test_state compliance_test_state; + + void *priv; + + struct ddc_service *ddc; + + enum dp_panel_mode panel_mode; + bool aux_mode; + + /* Private to DC core */ + + const struct dc *dc; + + struct dc_context *ctx; + + struct panel_cntl *panel_cntl; + struct link_encoder *link_enc; + struct graphics_object_id link_id; + /* Endpoint type distinguishes display endpoints which do not have entries + * in the BIOS connector table from those that do. Helps when tracking link + * encoder to display endpoint assignments. + */ + enum display_endpoint_type ep_type; + union ddi_channel_mapping ddi_channel_mapping; + struct connector_device_tag_info device_tag; + struct dpcd_caps dpcd_caps; + uint32_t dongle_max_pix_clk; + unsigned short chip_caps; + unsigned int dpcd_sink_count; + struct hdcp_caps hdcp_caps; + enum edp_revision edp_revision; + union dpcd_sink_ext_caps dpcd_sink_ext_caps; + + struct psr_settings psr_settings; + + /* Drive settings read from integrated info table */ + struct dc_lane_settings bios_forced_drive_settings; + + /* Vendor specific LTTPR workaround variables */ + uint8_t vendor_specific_lttpr_link_rate_wa; + bool apply_vendor_specific_lttpr_link_rate_wa; + + /* MST record stream using this link */ + struct link_flags { + bool dp_keep_receiver_powered; + bool dp_skip_DID2; + bool dp_skip_reset_segment; + bool dp_skip_fs_144hz; + bool dp_mot_reset_segment; + /* Some USB4 docks do not handle turning off MST DSC once it has been enabled. */ + bool dpia_mst_dsc_always_on; + /* Forced DPIA into TBT3 compatibility mode. */ + bool dpia_forced_tbt3_mode; + bool dongle_mode_timing_override; + } wa_flags; + struct link_mst_stream_allocation_table mst_stream_alloc_table; + + struct dc_link_status link_status; + struct dprx_states dprx_states; + + struct gpio *hpd_gpio; + enum dc_link_fec_state fec_state; + bool link_powered_externally; // Used to bypass hardware sequencing delays when panel is powered down forcibly + + struct dc_panel_config panel_config; + struct phy_state phy_state; + // BW ALLOCATON USB4 ONLY + struct dc_dpia_bw_alloc dpia_bw_alloc_config; +}; + +/* Return an enumerated dc_link. + * dc_link order is constant and determined at + * boot time. They cannot be created or destroyed. + * Use dc_get_caps() to get number of links. + */ +struct dc_link *dc_get_link_at_index(struct dc *dc, uint32_t link_index); + +/* Return instance id of the edp link. Inst 0 is primary edp link. */ +bool dc_get_edp_link_panel_inst(const struct dc *dc, + const struct dc_link *link, + unsigned int *inst_out); + +/* Return an array of link pointers to edp links. */ +void dc_get_edp_links(const struct dc *dc, + struct dc_link **edp_links, + int *edp_num); /* The function initiates detection handshake over the given link. It first * determines if there are display connections over the link. If so it initiates @@ -1404,6 +1557,38 @@ uint32_t dc_get_opp_for_plane(struct dc *dc, struct dc_plane_state *plane); */ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason); +struct dc_sink_init_data; + +/* When link connection type is dc_connection_mst_branch, remote sink can be + * added to the link. The interface creates a remote sink and associates it with + * current link. The sink will be retained by link until remove remote sink is + * called. + * + * @dc_link - link the remote sink will be added to. + * @edid - byte array of EDID raw data. + * @len - size of the edid in byte + * @init_data - + */ +struct dc_sink *dc_link_add_remote_sink( + struct dc_link *dc_link, + const uint8_t *edid, + int len, + struct dc_sink_init_data *init_data); + +/* Remove remote sink from a link with dc_connection_mst_branch connection type. + * @link - link the sink should be removed from + * @sink - sink to be removed. + */ +void dc_link_remove_remote_sink( + struct dc_link *link, + struct dc_sink *sink); + +/* Enable HPD interrupt handler for a given link */ +void dc_link_enable_hpd(const struct dc_link *link); + +/* Disable HPD interrupt handler for a given link */ +void dc_link_disable_hpd(const struct dc_link *link); + /* determine if there is a sink connected to the link * * @type - dc_connection_single if connected, dc_connection_none otherwise. @@ -1417,14 +1602,115 @@ bool dc_link_detect(struct dc_link *link, enum dc_detect_reason reason); bool dc_link_detect_connection_type(struct dc_link *link, enum dc_connection_type *type); +/* query current hpd pin value + * return - true HPD is asserted (HPD high), false otherwise (HPD low) + * + */ +bool dc_link_get_hpd_state(struct dc_link *link); + /* Getter for cached link status from given link */ const struct dc_link_status *dc_link_get_status(const struct dc_link *link); -#ifdef CONFIG_DRM_AMD_DC_HDCP +/* enable/disable hardware HPD filter. + * + * @link - The link the HPD pin is associated with. + * @enable = true - enable hardware HPD filter. HPD event will only queued to irq + * handler once after no HPD change has been detected within dc default HPD + * filtering interval since last HPD event. i.e if display keeps toggling hpd + * pulses within default HPD interval, no HPD event will be received until HPD + * toggles have stopped. Then HPD event will be queued to irq handler once after + * dc default HPD filtering interval since last HPD event. + * + * @enable = false - disable hardware HPD filter. HPD event will be queued + * immediately to irq handler after no HPD change has been detected within + * IRQ_HPD (aka HPD short pulse) interval (i.e 2ms). + */ +void dc_link_enable_hpd_filter(struct dc_link *link, bool enable); + +/* submit i2c read/write payloads through ddc channel + * @link_index - index to a link with ddc in i2c mode + * @cmd - i2c command structure + * return - true if success, false otherwise. + */ +bool dc_submit_i2c( + struct dc *dc, + uint32_t link_index, + struct i2c_command *cmd); + +/* submit i2c read/write payloads through oem channel + * @link_index - index to a link with ddc in i2c mode + * @cmd - i2c command structure + * return - true if success, false otherwise. + */ +bool dc_submit_i2c_oem( + struct dc *dc, + struct i2c_command *cmd); + +enum aux_return_code_type; +/* Attempt to transfer the given aux payload. This function does not perform + * retries or handle error states. The reply is returned in the payload->reply + * and the result through operation_result. Returns the number of bytes + * transferred,or -1 on a failure. + */ +int dc_link_aux_transfer_raw(struct ddc_service *ddc, + struct aux_payload *payload, + enum aux_return_code_type *operation_result); + +bool dc_is_oem_i2c_device_present( + struct dc *dc, + size_t slave_address +); + /* return true if the connected receiver supports the hdcp version */ bool dc_link_is_hdcp14(struct dc_link *link, enum signal_type signal); bool dc_link_is_hdcp22(struct dc_link *link, enum signal_type signal); -#endif + +/* Notify DC about DP RX Interrupt (aka DP IRQ_HPD). + * + * TODO - When defer_handling is true the function will have a different purpose. + * It no longer does complete hpd rx irq handling. We should create a separate + * interface specifically for this case. + * + * Return: + * true - Downstream port status changed. DM should call DC to do the + * detection. + * false - no change in Downstream port status. No further action required + * from DM. + */ +bool dc_link_handle_hpd_rx_irq(struct dc_link *dc_link, + union hpd_irq_data *hpd_irq_dpcd_data, bool *out_link_loss, + bool defer_handling, bool *has_left_work); +/* handle DP specs define test automation sequence*/ +void dc_link_dp_handle_automated_test(struct dc_link *link); + +/* handle DP Link loss sequence and try to recover RX link loss with best + * effort + */ +void dc_link_dp_handle_link_loss(struct dc_link *link); + +/* Determine if hpd rx irq should be handled or ignored + * return true - hpd rx irq should be handled. + * return false - it is safe to ignore hpd rx irq event + */ +bool dc_link_dp_allow_hpd_rx_irq(const struct dc_link *link); + +/* Determine if link loss is indicated with a given hpd_irq_dpcd_data. + * @link - link the hpd irq data associated with + * @hpd_irq_dpcd_data - input hpd irq data + * return - true if hpd irq data indicates a link lost + */ +bool dc_link_check_link_loss_status(struct dc_link *link, + union hpd_irq_data *hpd_irq_dpcd_data); + +/* Read hpd rx irq data from a given link + * @link - link where the hpd irq data should be read from + * @irq_data - output hpd irq data + * return - DC_OK if hpd irq data is read successfully, otherwise hpd irq data + * read has failed. + */ +enum dc_status dc_link_dp_read_hpd_rx_irq_data( + struct dc_link *link, + union hpd_irq_data *irq_data); /* The function clears recorded DP RX states in the link. DM should call this * function when it is resuming from S3 power state to previously connected links. @@ -1450,12 +1736,6 @@ uint32_t dc_link_bandwidth_kbps( const struct dc_link *link, const struct dc_link_settings *link_setting); -/* The function returns minimum bandwidth required to drive a given timing - * return - minimum required timing bandwidth in kbps. - */ -uint32_t dc_bandwidth_in_kbps_from_timing( - const struct dc_crtc_timing *timing); - /* The function takes a snapshot of current link resource allocation state * @dc: pointer to dc of the dm calling this * @map: a dc link resource snapshot defined internally to dc. @@ -1493,6 +1773,281 @@ void dc_restore_link_res_map(const struct dc *dc, uint32_t *map); * interface i.e stream_update->dsc_config */ bool dc_link_update_dsc_config(struct pipe_ctx *pipe_ctx); + +/* translate a raw link rate data to bandwidth in kbps */ +uint32_t dc_link_bw_kbps_from_raw_frl_link_rate_data(const struct dc *dc, uint8_t bw); + +/* determine the optimal bandwidth given link and required bw. + * @link - current detected link + * @req_bw - requested bandwidth in kbps + * @link_settings - returned most optimal link settings that can fit the + * requested bandwidth + * return - false if link can't support requested bandwidth, true if link + * settings is found. + */ +bool dc_link_decide_edp_link_settings(struct dc_link *link, + struct dc_link_settings *link_settings, + uint32_t req_bw); + +/* return the max dp link settings can be driven by the link without considering + * connected RX device and its capability + */ +bool dc_link_dp_get_max_link_enc_cap(const struct dc_link *link, + struct dc_link_settings *max_link_enc_cap); + +/* determine when the link is driving MST mode, what DP link channel coding + * format will be used. The decision will remain unchanged until next HPD event. + * + * @link - a link with DP RX connection + * return - if stream is committed to this link with MST signal type, type of + * channel coding format dc will choose. + */ +enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format( + const struct dc_link *link); + +/* get max dp link settings the link can enable with all things considered. (i.e + * TX/RX/Cable capabilities and dp override policies. + * + * @link - a link with DP RX connection + * return - max dp link settings the link can enable. + * + */ +const struct dc_link_settings *dc_link_get_link_cap(const struct dc_link *link); + +/* Check if a RX (ex. DP sink, MST hub, passive or active dongle) is connected + * to a link with dp connector signal type. + * @link - a link with dp connector signal type + * return - true if connected, false otherwise + */ +bool dc_link_is_dp_sink_present(struct dc_link *link); + +/* Force DP lane settings update to main-link video signal and notify the change + * to DP RX via DPCD. This is a debug interface used for video signal integrity + * tuning purpose. The interface assumes link has already been enabled with DP + * signal. + * + * @lt_settings - a container structure with desired hw_lane_settings + */ +void dc_link_set_drive_settings(struct dc *dc, + struct link_training_settings *lt_settings, + struct dc_link *link); + +/* Enable a test pattern in Link or PHY layer in an active link for compliance + * test or debugging purpose. The test pattern will remain until next un-plug. + * + * @link - active link with DP signal output enabled. + * @test_pattern - desired test pattern to output. + * NOTE: set to DP_TEST_PATTERN_VIDEO_MODE to disable previous test pattern. + * @test_pattern_color_space - for video test pattern choose a desired color + * space. + * @p_link_settings - For PHY pattern choose a desired link settings + * @p_custom_pattern - some test pattern will require a custom input to + * customize some pattern details. Otherwise keep it to NULL. + * @cust_pattern_size - size of the custom pattern input. + * + */ +bool dc_link_dp_set_test_pattern( + struct dc_link *link, + enum dp_test_pattern test_pattern, + enum dp_test_pattern_color_space test_pattern_color_space, + const struct link_training_settings *p_link_settings, + const unsigned char *p_custom_pattern, + unsigned int cust_pattern_size); + +/* Force DP link settings to always use a specific value until reboot to a + * specific link. If link has already been enabled, the interface will also + * switch to desired link settings immediately. This is a debug interface to + * generic dp issue trouble shooting. + */ +void dc_link_set_preferred_link_settings(struct dc *dc, + struct dc_link_settings *link_setting, + struct dc_link *link); + +/* Force DP link to customize a specific link training behavior by overriding to + * standard DP specs defined protocol. This is a debug interface to trouble shoot + * display specific link training issues or apply some display specific + * workaround in link training. + * + * @link_settings - if not NULL, force preferred link settings to the link. + * @lt_override - a set of override pointers. If any pointer is none NULL, dc + * will apply this particular override in future link training. If NULL is + * passed in, dc resets previous overrides. + * NOTE: DM must keep the memory from override pointers until DM resets preferred + * training settings. + */ +void dc_link_set_preferred_training_settings(struct dc *dc, + struct dc_link_settings *link_setting, + struct dc_link_training_overrides *lt_overrides, + struct dc_link *link, + bool skip_immediate_retrain); + +/* return - true if FEC is supported with connected DP RX, false otherwise */ +bool dc_link_is_fec_supported(const struct dc_link *link); + +/* query FEC enablement policy to determine if FEC will be enabled by dc during + * link enablement. + * return - true if FEC should be enabled, false otherwise. + */ +bool dc_link_should_enable_fec(const struct dc_link *link); + +/* determine lttpr mode the current link should be enabled with a specific link + * settings. + */ +enum lttpr_mode dc_link_decide_lttpr_mode(struct dc_link *link, + struct dc_link_settings *link_setting); + +/* Force DP RX to update its power state. + * NOTE: this interface doesn't update dp main-link. Calling this function will + * cause DP TX main-link and DP RX power states out of sync. DM has to restore + * RX power state back upon finish DM specific execution requiring DP RX in a + * specific power state. + * @on - true to set DP RX in D0 power state, false to set DP RX in D3 power + * state. + */ +void dc_link_dp_receiver_power_ctrl(struct dc_link *link, bool on); + +/* Force link to read base dp receiver caps from dpcd 000h - 00Fh and overwrite + * current value read from extended receiver cap from 02200h - 0220Fh. + * Some DP RX has problems of providing accurate DP receiver caps from extended + * field, this interface is a workaround to revert link back to use base caps. + */ +void dc_link_overwrite_extended_receiver_cap( + struct dc_link *link); + +void dc_link_edp_panel_backlight_power_on(struct dc_link *link, + bool wait_for_hpd); + +/* Set backlight level of an embedded panel (eDP, LVDS). + * backlight_pwm_u16_16 is unsigned 32 bit with 16 bit integer + * and 16 bit fractional, where 1.0 is max backlight value. + */ +bool dc_link_set_backlight_level(const struct dc_link *dc_link, + uint32_t backlight_pwm_u16_16, + uint32_t frame_ramp); + +/* Set/get nits-based backlight level of an embedded panel (eDP, LVDS). */ +bool dc_link_set_backlight_level_nits(struct dc_link *link, + bool isHDR, + uint32_t backlight_millinits, + uint32_t transition_time_in_ms); + +bool dc_link_get_backlight_level_nits(struct dc_link *link, + uint32_t *backlight_millinits, + uint32_t *backlight_millinits_peak); + +int dc_link_get_backlight_level(const struct dc_link *dc_link); + +int dc_link_get_target_backlight_pwm(const struct dc_link *link); + +bool dc_link_set_psr_allow_active(struct dc_link *dc_link, const bool *enable, + bool wait, bool force_static, const unsigned int *power_opts); + +bool dc_link_get_psr_state(const struct dc_link *dc_link, enum dc_psr_state *state); + +bool dc_link_setup_psr(struct dc_link *dc_link, + const struct dc_stream_state *stream, struct psr_config *psr_config, + struct psr_context *psr_context); + +/* On eDP links this function call will stall until T12 has elapsed. + * If the panel is not in power off state, this function will return + * immediately. + */ +bool dc_link_wait_for_t12(struct dc_link *link); + +/* Determine if dp trace has been initialized to reflect upto date result * + * return - true if trace is initialized and has valid data. False dp trace + * doesn't have valid result. + */ +bool dc_dp_trace_is_initialized(struct dc_link *link); + +/* Query a dp trace flag to indicate if the current dp trace data has been + * logged before + */ +bool dc_dp_trace_is_logged(struct dc_link *link, + bool in_detection); + +/* Set dp trace flag to indicate whether DM has already logged the current dp + * trace data. DM can set is_logged to true upon logging and check + * dc_dp_trace_is_logged before logging to avoid logging the same result twice. + */ +void dc_dp_trace_set_is_logged_flag(struct dc_link *link, + bool in_detection, + bool is_logged); + +/* Obtain driver time stamp for last dp link training end. The time stamp is + * formatted based on dm_get_timestamp DM function. + * @in_detection - true to get link training end time stamp of last link + * training in detection sequence. false to get link training end time stamp + * of last link training in commit (dpms) sequence + */ +unsigned long long dc_dp_trace_get_lt_end_timestamp(struct dc_link *link, + bool in_detection); + +/* Get how many link training attempts dc has done with latest sequence. + * @in_detection - true to get link training count of last link + * training in detection sequence. false to get link training count of last link + * training in commit (dpms) sequence + */ +const struct dp_trace_lt_counts *dc_dp_trace_get_lt_counts(struct dc_link *link, + bool in_detection); + +/* Get how many link loss has happened since last link training attempts */ +unsigned int dc_dp_trace_get_link_loss_count(struct dc_link *link); + +/* + * USB4 DPIA BW ALLOCATION PUBLIC FUNCTIONS + */ +/* + * Send a request from DP-Tx requesting to allocate BW remotely after + * allocating it locally. This will get processed by CM and a CB function + * will be called. + * + * @link: pointer to the dc_link struct instance + * @req_bw: The requested bw in Kbyte to allocated + * + * return: none + */ +void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw); + +/* + * Handle function for when the status of the Request above is complete. + * We will find out the result of allocating on CM and update structs. + * + * @link: pointer to the dc_link struct instance + * @bw: Allocated or Estimated BW depending on the result + * @result: Response type + * + * return: none + */ +void dc_link_handle_usb4_bw_alloc_response(struct dc_link *link, + uint8_t bw, uint8_t result); + +/* + * Handle the USB4 BW Allocation related functionality here: + * Plug => Try to allocate max bw from timing parameters supported by the sink + * Unplug => de-allocate bw + * + * @link: pointer to the dc_link struct instance + * @peak_bw: Peak bw used by the link/sink + * + * return: allocated bw else return 0 + */ +int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link( + struct dc_link *link, int peak_bw); + +/* + * Validate the BW of all the valid DPIA links to make sure it doesn't exceed + * available BW for each host router + * + * @dc: pointer to dc struct + * @stream: pointer to all possible streams + * @num_streams: number of valid DPIA streams + * + * return: TRUE if bw used by DPIAs doesn't exceed available BW else return FALSE + */ +bool dc_link_validate(struct dc *dc, const struct dc_stream_state *streams, + const unsigned int count); + /* Sink Interfaces - A sink corresponds to a display output device */ struct dc_container_id { @@ -1511,7 +2066,7 @@ struct dc_sink_dsc_caps { // 'true' if these are virtual DPCD's DSC caps (immediately upstream of sink in MST topology), // 'false' if they are sink's DSC caps bool is_virtual_dpcd_dsc; -#if defined(CONFIG_DRM_AMD_DC_DCN) +#if defined(CONFIG_DRM_AMD_DC_FP) // 'true' if MST topology supports DSC passthrough for sink // 'false' if MST topology does not support DSC passthrough bool is_dsc_passthrough_supported; @@ -1603,7 +2158,6 @@ void dc_resume(struct dc *dc); void dc_power_down_on_boot(struct dc *dc); -#if defined(CONFIG_DRM_AMD_DC_HDCP) /* * HDCP Interfaces */ @@ -1611,7 +2165,6 @@ enum hdcp_message_status dc_process_hdcp_msg( enum signal_type signal, struct dc_link *link, struct hdcp_protection_message *message_info); -#endif bool dc_is_dmcu_initialized(struct dc *dc); enum dc_status dc_set_clock(struct dc *dc, enum dc_clock_type clock_type, uint32_t clk_khz, uint32_t stepping); |