arch/powerpc/include/asm/serial.h

File Facts

System

Linux kernel

Corpus path

arch/powerpc/include/asm/serial.h

Extension

.h

Size

473 bytes

Lines

22

Domain

Architecture Layer

Bucket

arch/powerpc

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_POWERPC_SERIAL_H
#define _ASM_POWERPC_SERIAL_H

/*
 * Serial ports are not listed here, because they are discovered
 * through the device tree.
 */

/* Default baud base if not found in device-tree */
#define BASE_BAUD ( 1843200 / 16 )

#ifdef CONFIG_PPC_UDBG_16550
extern void find_legacy_serial_ports(void);
#else
#define find_legacy_serial_ports()	do { } while (0)
#endif

#endif /* _PPC64_SERIAL_H */

Annotation

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