arch/x86/lib/cache-smp.c

Source file repositories/reference/linux-study-clean/arch/x86/lib/cache-smp.c

File Facts

System
Linux kernel
Corpus path
arch/x86/lib/cache-smp.c
Extension
.c
Size
846 bytes
Lines
45
Domain
Architecture Layer
Bucket
arch/x86
Inferred role
Architecture Layer: exported/initcall integration point
Status
integration 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

// SPDX-License-Identifier: GPL-2.0
#include <linux/smp.h>
#include <linux/export.h>
#include <linux/kvm_types.h>

static void __wbinvd(void *dummy)
{
	wbinvd();
}

void wbinvd_on_cpu(int cpu)
{
	smp_call_function_single(cpu, __wbinvd, NULL, 1);
}
EXPORT_SYMBOL_FOR_KVM(wbinvd_on_cpu);

void wbinvd_on_all_cpus(void)
{
	on_each_cpu(__wbinvd, NULL, 1);
}
EXPORT_SYMBOL(wbinvd_on_all_cpus);

void wbinvd_on_cpus_mask(struct cpumask *cpus)
{
	on_each_cpu_mask(cpus, __wbinvd, NULL, 1);
}
EXPORT_SYMBOL_FOR_KVM(wbinvd_on_cpus_mask);

static void __wbnoinvd(void *dummy)
{
	wbnoinvd();
}

void wbnoinvd_on_all_cpus(void)
{
	on_each_cpu(__wbnoinvd, NULL, 1);
}
EXPORT_SYMBOL_FOR_KVM(wbnoinvd_on_all_cpus);

void wbnoinvd_on_cpus_mask(struct cpumask *cpus)
{
	on_each_cpu_mask(cpus, __wbnoinvd, NULL, 1);
}
EXPORT_SYMBOL_FOR_KVM(wbnoinvd_on_cpus_mask);

Annotation

Implementation Notes