arch/riscv/include/asm/cpuidle.h

File Facts

System

Linux kernel

Corpus path

arch/riscv/include/asm/cpuidle.h

Extension

.h

Size

450 bytes

Lines

25

Domain

Architecture Layer

Bucket

arch/riscv

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/barrier.h
• asm/processor.h

Detected Declarations

• function Copyright

Annotated Snippet

#ifndef _ASM_RISCV_CPUIDLE_H
#define _ASM_RISCV_CPUIDLE_H

#include <asm/barrier.h>
#include <asm/processor.h>

static inline void cpu_do_idle(void)
{
	/*
	 * Add mb() here to ensure that all
	 * IO/MEM accesses are completed prior
	 * to entering WFI.
	 */
	mb();
	wait_for_interrupt();
}

#endif

Annotation

• Immediate include surface: `asm/barrier.h`, `asm/processor.h`.
• Detected declarations: `function Copyright`.
• Atlas domain: Architecture Layer / arch/riscv.
• 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.