struct dc_stream_state stream_state;
};
+/*
+ * 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 */
+
+ /* USB4 DPIA links skip verifying link cap, instead performing the fallback method
+ * for every link training. This is incompatible with DP LL compliance automation,
+ * which expects the same link settings to be used every retry on a link loss.
+ * This flag is used to skip the fallback when link loss occurs during automation.
+ */
+ bool skip_fallback_on_link_loss;
+
+ 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;
+ enum engine_id dpia_preferred_eng_id;
+
+ bool test_pattern_enabled;
+ /* Pending/Current test pattern are only used to perform and track
+ * FIXED_VS retimer test pattern/lane adjustment override state.
+ * Pending allows link HWSS to differentiate PHY vs non-PHY pattern,
+ * to perform specific lane adjust overrides before setting certain
+ * PHY test patterns. In cases when lane adjust and set test pattern
+ * calls are not performed atomically (i.e. performing link training),
+ * pending_test_pattern will be invalid or contain a non-PHY test pattern
+ * and current_test_pattern will contain required context for any future
+ * set pattern/set lane adjust to transition between override state(s).
+ * */
+ enum dp_test_pattern current_test_pattern;
+ enum dp_test_pattern pending_test_pattern;
+
+ 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;
+ struct replay_settings replay_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;
+ bool blank_stream_on_ocs_change;
+ bool read_dpcd204h_on_irq_hpd;
+ bool force_dp_ffe_preset;
+ } wa_flags;
+ union dc_dp_ffe_preset forced_dp_ffe_preset;
+ 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;
+ uint32_t phy_transition_bitmask;
+ // BW ALLOCATON USB4 ONLY
+ struct dc_dpia_bw_alloc dpia_bw_alloc_config;
+ bool skip_implict_edp_power_control;
+ enum backlight_control_type backlight_control_type;
+};
+
struct dc {
struct dc_debug_options debug;
struct dc_versions versions;
struct dc_scratch_space current_state;
struct dc_scratch_space new_state;
struct dc_stream_state temp_stream; // Used so we don't need to allocate stream on the stack
+ struct dc_link temp_link;
bool pipes_to_unlock_first[MAX_PIPES]; /* Any of the pipes indicated here should be unlocked first */
} scratch;
const enum dc_link_encoding_format link_encoding);
/* Link Interfaces */
-/*
- * 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 */
-
- /* USB4 DPIA links skip verifying link cap, instead performing the fallback method
- * for every link training. This is incompatible with DP LL compliance automation,
- * which expects the same link settings to be used every retry on a link loss.
- * This flag is used to skip the fallback when link loss occurs during automation.
- */
- bool skip_fallback_on_link_loss;
-
- 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;
- enum engine_id dpia_preferred_eng_id;
-
- bool test_pattern_enabled;
- /* Pending/Current test pattern are only used to perform and track
- * FIXED_VS retimer test pattern/lane adjustment override state.
- * Pending allows link HWSS to differentiate PHY vs non-PHY pattern,
- * to perform specific lane adjust overrides before setting certain
- * PHY test patterns. In cases when lane adjust and set test pattern
- * calls are not performed atomically (i.e. performing link training),
- * pending_test_pattern will be invalid or contain a non-PHY test pattern
- * and current_test_pattern will contain required context for any future
- * set pattern/set lane adjust to transition between override state(s).
- * */
- enum dp_test_pattern current_test_pattern;
- enum dp_test_pattern pending_test_pattern;
-
- 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;
- struct replay_settings replay_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;
- bool blank_stream_on_ocs_change;
- bool read_dpcd204h_on_irq_hpd;
- bool force_dp_ffe_preset;
- } wa_flags;
- union dc_dp_ffe_preset forced_dp_ffe_preset;
- 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;
- uint32_t phy_transition_bitmask;
- // BW ALLOCATON USB4 ONLY
- struct dc_dpia_bw_alloc dpia_bw_alloc_config;
- bool skip_implict_edp_power_control;
- enum backlight_control_type backlight_control_type;
-};
-
/* Return an enumerated dc_link.
* dc_link order is constant and determined at
* boot time. They cannot be created or destroyed.
projects / linux-block.git / commitdiff