arch/loongarch/include/asm/branch.h

File Facts

System

Linux kernel

Corpus path

arch/loongarch/include/asm/branch.h

Extension

.h

Size

388 bytes

Lines

21

Domain

Architecture Layer

Bucket

arch/loongarch

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

• asm/ptrace.h

Detected Declarations

• function Copyright
• function compute_return_era

Annotated Snippet

#ifndef _ASM_BRANCH_H
#define _ASM_BRANCH_H

#include <asm/ptrace.h>

static inline unsigned long exception_era(struct pt_regs *regs)
{
	return regs->csr_era;
}

static inline void compute_return_era(struct pt_regs *regs)
{
	regs->csr_era += 4;
}

#endif /* _ASM_BRANCH_H */

Annotation

• Immediate include surface: `asm/ptrace.h`.
• Detected declarations: `function Copyright`, `function compute_return_era`.
• Atlas domain: Architecture Layer / arch/loongarch.
• 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.