arch/riscv/include/asm/cpu_ops.h

File Facts

System

Linux kernel

Corpus path

arch/riscv/include/asm/cpu_ops.h

Extension

.h

Size

972 bytes

Lines

36

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/sched.h
• linux/threads.h

Detected Declarations

• struct cpu_operations

Annotated Snippet

struct cpu_operations {
	int		(*cpu_start)(unsigned int cpu,
				     struct task_struct *tidle);
#ifdef CONFIG_HOTPLUG_CPU
	void		(*cpu_stop)(void);
	bool		(*cpu_is_stopped)(unsigned int cpu);
#endif
};

extern const struct cpu_operations cpu_ops_spinwait;
extern const struct cpu_operations *cpu_ops;
void __init cpu_set_ops(void);

#endif /* ifndef __ASM_CPU_OPS_H */

Annotation

• Immediate include surface: `linux/init.h`, `linux/sched.h`, `linux/threads.h`.
• Detected declarations: `struct cpu_operations`.
• 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.