arch/riscv/include/asm/topology.h

Source file repositories/reference/linux-study-clean/arch/riscv/include/asm/topology.h

File Facts

System
Linux kernel
Corpus path
arch/riscv/include/asm/topology.h
Extension
.h
Size
822 bytes
Lines
27
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.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef _ASM_RISCV_TOPOLOGY_H
#define _ASM_RISCV_TOPOLOGY_H

#include <linux/arch_topology.h>

#ifdef CONFIG_NUMA
#include <asm/numa.h>
#endif

/* Replace task scheduler's default frequency-invariant accounting */
#define arch_scale_freq_tick		topology_scale_freq_tick
#define arch_set_freq_scale		topology_set_freq_scale
#define arch_scale_freq_capacity	topology_get_freq_scale
#define arch_scale_freq_invariant	topology_scale_freq_invariant
#define arch_scale_freq_ref		topology_get_freq_ref

/* Replace task scheduler's default cpu-invariant accounting */
#define arch_scale_cpu_capacity	topology_get_cpu_scale

/* Enable topology flag updates */
#define arch_update_cpu_topology	topology_update_cpu_topology

#include <asm-generic/topology.h>

#endif /* _ASM_RISCV_TOPOLOGY_H */

Annotation

Implementation Notes