arch/arc/include/asm/serial.h

File Facts

System

Linux kernel

Corpus path

arch/arc/include/asm/serial.h

Extension

.h

Size

498 bytes

Lines

20

Domain

Architecture Layer

Bucket

arch/arc

Inferred role

Architecture Layer: implementation source

Status

source implementation candidate

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_ARC_SERIAL_H
#define _ASM_ARC_SERIAL_H

/*
 * early 8250 (now earlycon) requires BASE_BAUD to be defined in this header.
 * However to still determine it dynamically (for multi-platform images)
 * we do this in a helper by parsing the FDT early
 */

extern unsigned int __init arc_early_base_baud(void);

#define BASE_BAUD	arc_early_base_baud()

#endif /* _ASM_ARC_SERIAL_H */

Annotation

• Atlas domain: Architecture Layer / arch/arc.
• 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.