arch/mips/include/asm/delay.h

File Facts

System

Linux kernel

Corpus path

arch/mips/include/asm/delay.h

Extension

.h

Size

841 bytes

Lines

33

Domain

Architecture Layer

Bucket

arch/mips

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

• linux/param.h

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_DELAY_H
#define _ASM_DELAY_H

#include <linux/param.h>

extern void __delay(unsigned long loops);
extern void __ndelay(unsigned long ns);
extern void __udelay(unsigned long us);

#define ndelay(ns) __ndelay(ns)
#define udelay(us) __udelay(us)

/* make sure "usecs *= ..." in udelay do not overflow. */
#if HZ >= 1000
#define MAX_UDELAY_MS	1
#elif HZ <= 200
#define MAX_UDELAY_MS	5
#else
#define MAX_UDELAY_MS	(1000 / HZ)
#endif

#endif /* _ASM_DELAY_H */

Annotation

• Immediate include surface: `linux/param.h`.
• Atlas domain: Architecture Layer / arch/mips.
• 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.