arch/arc/include/asm/switch_to.h

File Facts

System

Linux kernel

Corpus path

arch/arc/include/asm/switch_to.h

Extension

.h

Size

554 bytes

Lines

28

Domain

Architecture Layer

Bucket

arch/arc

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/sched.h
• asm/dsp-impl.h
• asm/fpu.h

Detected Declarations

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

Annotated Snippet

#ifndef _ASM_ARC_SWITCH_TO_H
#define _ASM_ARC_SWITCH_TO_H

#ifndef __ASSEMBLER__

#include <linux/sched.h>
#include <asm/dsp-impl.h>
#include <asm/fpu.h>

struct task_struct *__switch_to(struct task_struct *p, struct task_struct *n);

#define switch_to(prev, next, last)	\
do {					\
	dsp_save_restore(prev, next);	\
	fpu_save_restore(prev, next);	\
	last = __switch_to(prev, next);\
	mb();				\
} while (0)

#endif

#endif

Annotation

• Immediate include surface: `linux/sched.h`, `asm/dsp-impl.h`, `asm/fpu.h`.
• Atlas domain: Architecture Layer / arch/arc.
• 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.