arch/riscv/include/asm/perf_event.h

File Facts

System

Linux kernel

Corpus path

arch/riscv/include/asm/perf_event.h

Extension

.h

Size

575 bytes

Lines

24

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/perf_event.h

Detected Declarations

• function Copyright

Annotated Snippet

#ifndef _ASM_RISCV_PERF_EVENT_H
#define _ASM_RISCV_PERF_EVENT_H

#ifdef CONFIG_PERF_EVENTS
#include <linux/perf_event.h>
#define perf_arch_bpf_user_pt_regs(regs) (struct user_regs_struct *)regs

#define perf_arch_fetch_caller_regs(regs, __ip) { \
	(regs)->epc = (__ip); \
	(regs)->s0 = (unsigned long) __builtin_frame_address(0); \
	(regs)->sp = current_stack_pointer; \
	(regs)->status = SR_PP; \
}
#endif

#endif /* _ASM_RISCV_PERF_EVENT_H */

Annotation

• Immediate include surface: `linux/perf_event.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.