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ARM: bugs: prepare processor bug infrastructure

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Commit a5b9177f69329314721aa7022b7e69dab23fa1f0 upstream.

Prepare the processor bug infrastructure so that it can be expanded to
check for per-processor bugs.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Boot-tested-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Russell King 2018-11-07 11:43:40 -05:00 committed by Greg Kroah-Hartman
parent 183a0d21e4
commit b26c3c4bcd
3 changed files with 12 additions and 2 deletions
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4
arch/arm/include/asm/bugs.h
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@ -10,10 +10,10 @@
#ifndef __ASM_BUGS_H
#define __ASM_BUGS_H
#ifdef CONFIG_MMU
extern void check_writebuffer_bugs(void);
#define check_bugs() check_writebuffer_bugs()
#ifdef CONFIG_MMU
extern void check_bugs(void);
#else
#define check_bugs() do { } while (0)
#endif

1
arch/arm/kernel/Makefile
View File

@ -30,6 +30,7 @@ else
obj-y += entry-armv.o
endif
obj-$(CONFIG_MMU) += bugs.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_ISA_DMA_API) += dma.o
obj-$(CONFIG_FIQ) += fiq.o fiqasm.o

9
arch/arm/kernel/bugs.c Normal file
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@ -0,0 +1,9 @@
// SPDX-Identifier: GPL-2.0
#include <linux/init.h>
#include <asm/bugs.h>
#include <asm/proc-fns.h>
void __init check_bugs(void)
{
check_writebuffer_bugs();
}