arch/arm/kernel/v7m.c

Source file repositories/reference/linux-study-clean/arch/arm/kernel/v7m.c

File Facts

System
Linux kernel
Corpus path
arch/arm/kernel/v7m.c
Extension
.c
Size
382 bytes
Lines
17
Domain
Architecture Layer
Bucket
arch/arm
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

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2013 Uwe Kleine-Koenig for Pengutronix
 */
#include <linux/io.h>
#include <linux/reboot.h>
#include <asm/barrier.h>
#include <asm/v7m.h>

void armv7m_restart(enum reboot_mode mode, const char *cmd)
{
	dsb();
	__raw_writel(V7M_SCB_AIRCR_VECTKEY | V7M_SCB_AIRCR_SYSRESETREQ,
			BASEADDR_V7M_SCB + V7M_SCB_AIRCR);
	dsb();
}

Annotation

Implementation Notes