arch/parisc/include/asm/timex.h

File Facts

System

Linux kernel

Corpus path

arch/parisc/include/asm/timex.h

Extension

.h

Size

403 bytes

Lines

23

Domain

Architecture Layer

Bucket

arch/parisc

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

• asm/special_insns.h

Detected Declarations

• function get_cycles

Annotated Snippet

#ifndef _ASMPARISC_TIMEX_H
#define _ASMPARISC_TIMEX_H

#include <asm/special_insns.h>

#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */

typedef unsigned long cycles_t;

static inline cycles_t get_cycles(void)
{
	return mfctl(16);
}
#define get_cycles get_cycles

#endif

Annotation

• Immediate include surface: `asm/special_insns.h`.
• Detected declarations: `function get_cycles`.
• Atlas domain: Architecture Layer / arch/parisc.
• 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.