drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_trace.h

File Facts

System

Linux kernel

Corpus path

drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_trace.h

Extension

.h

Size

2740 bytes

Lines

64

Domain

Driver Families

Bucket

drivers/gpu

Inferred role

Driver Families: implementation source

Status

source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

• Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• link_service.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __LINK_DP_TRACE_H__
#define __LINK_DP_TRACE_H__
#include "link_service.h"

void dp_trace_init(struct dc_link *link);
void dp_trace_reset(struct dc_link *link);
bool dp_trace_is_initialized(struct dc_link *link);
void dp_trace_detect_lt_init(struct dc_link *link);
void dp_trace_commit_lt_init(struct dc_link *link);
void dp_trace_link_loss_increment(struct dc_link *link);
void dp_trace_lt_fail_count_update(struct dc_link *link,
		unsigned int fail_count,
		bool in_detection);
void dp_trace_lt_total_count_increment(struct dc_link *link,
		bool in_detection);
void dp_trace_set_is_logged_flag(struct dc_link *link,
		bool in_detection,
		bool is_logged);
bool dp_trace_is_logged(struct dc_link *link,
		bool in_detection);
void dp_trace_lt_result_update(struct dc_link *link,
		enum link_training_result result,
		bool in_detection);
void dp_trace_set_lt_start_timestamp(struct dc_link *link,
		bool in_detection);
void dp_trace_set_lt_end_timestamp(struct dc_link *link,
		bool in_detection);
unsigned long long dp_trace_get_lt_end_timestamp(struct dc_link *link,
		bool in_detection);
const struct dp_trace_lt_counts *dp_trace_get_lt_counts(struct dc_link *link,
		bool in_detection);
unsigned int dp_trace_get_link_loss_count(struct dc_link *link);
void dp_trace_set_edp_power_timestamp(struct dc_link *link,
		bool power_up);
uint64_t dp_trace_get_edp_poweron_timestamp(struct dc_link *link);
uint64_t dp_trace_get_edp_poweroff_timestamp(struct dc_link *link);
void dp_trace_source_sequence(struct dc_link *link, uint8_t dp_test_mode);

#endif /* __LINK_DP_TRACE_H__ */

Annotation

• Immediate include surface: `link_service.h`.
• Atlas domain: Driver Families / drivers/gpu.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.