arch/openrisc/include/asm/smp.h

File Facts

System

Linux kernel

Corpus path

arch/openrisc/include/asm/smp.h

Extension

.h

Size

850 bytes

Lines

28

Domain

Architecture Layer

Bucket

arch/openrisc

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/spr.h
• asm/spr_defs.h

Detected Declarations

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

Annotated Snippet

#ifndef __ASM_OPENRISC_SMP_H
#define __ASM_OPENRISC_SMP_H

#include <asm/spr.h>
#include <asm/spr_defs.h>

#define raw_smp_processor_id()	(current_thread_info()->cpu)
#define hard_smp_processor_id()	mfspr(SPR_COREID)

extern void smp_init_cpus(void);

extern void arch_send_call_function_single_ipi(int cpu);
extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);

extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int),
			       unsigned int irq);
extern void handle_IPI(unsigned int ipi_msg);

#endif /* __ASM_OPENRISC_SMP_H */

Annotation

• Immediate include surface: `asm/spr.h`, `asm/spr_defs.h`.
• Atlas domain: Architecture Layer / arch/openrisc.
• 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.