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ARM: 8642/1: LPAE: catch pending imprecise abort on unmask 

Asynchronous external abort is coded differently in DFSR with LPAE enabled.

Fixes: 9254970c "ARM: 8447/1: catch pending imprecise abort on unmask".
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Alexander Sverdlin 2017-01-17 21:10:11 +01:00 committed by Russell King
parent 90f92c631b
commit 97a98ae5b8
2 changed files with 6 additions and 2 deletions
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4
arch/arm/mm/fault.c
View File

@ -610,9 +610,9 @@ static int __init early_abort_handler(unsigned long addr, unsigned int fsr,
void __init early_abt_enable(void)
{
fsr_info[22].fn = early_abort_handler;
fsr_info[FSR_FS_AEA].fn = early_abort_handler;
local_abt_enable();
fsr_info[22].fn = do_bad;
fsr_info[FSR_FS_AEA].fn = do_bad;
}
#ifndef CONFIG_ARM_LPAE

4
arch/arm/mm/fault.h
View File

@ -11,11 +11,15 @@
#define FSR_FS5_0 (0x3f)
#ifdef CONFIG_ARM_LPAE
#define FSR_FS_AEA 17
static inline int fsr_fs(unsigned int fsr)
{
return fsr & FSR_FS5_0;
}
#else
#define FSR_FS_AEA 22
static inline int fsr_fs(unsigned int fsr)
{
return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;