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| author | Lucas Stach <l.stach@pengutronix.de> | 2015-10-19 15:38:09 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-10-19 19:08:33 +0300 |
| commit | 9254970cbbf542a0085e491810f0144a27885702 (patch) | |
| tree | f46c0c1ce8575aecc8133703117a1be5ab181ad1 /arch/arm/mm/mmu.c | |
| parent | c8d46ece44458a2088896d6fcae123a72bdfd429 (diff) | |
| download | linux-9254970cbbf542a0085e491810f0144a27885702.tar.xz | |
ARM: 8447/1: catch pending imprecise abort on unmask
Install a non-faulting handler just before unmasking imprecise aborts
and switch back to the regular one after unmasking is done.
This catches any pending imprecise abort that the firmware/bootloader
may have left behind that would normally crash the kernel at that point.
As there are apparently a lot of bootlaoders out there that do such a
thing it makes sense to handle it in the common startup code.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Tyler Baker <tyler.baker@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index f65a6f344b6d..4867f5daf82c 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -38,6 +38,7 @@ #include <asm/mach/pci.h> #include <asm/fixmap.h> +#include "fault.h" #include "mm.h" #include "tcm.h" @@ -1365,7 +1366,7 @@ static void __init devicemaps_init(const struct machine_desc *mdesc) flush_cache_all(); /* Enable asynchronous aborts */ - local_abt_enable(); + early_abt_enable(); } static void __init kmap_init(void) |