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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-12-04 14:01:02 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-12-04 14:01:02 +0100 |
| commit | c09c9dd2e9c732658c744a802101d5c34fedde22 (patch) | |
| tree | 89f930ede811e66e7a70761aaca079d779fed38a /arch/arm/mm/fault.c | |
| parent | x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a245 (diff) | |
| parent | PCI / PM: Tune down retryable runtime suspend error messages (diff) | |
| download | linux-c09c9dd2e9c732658c744a802101d5c34fedde22.tar.xz linux-c09c9dd2e9c732658c744a802101d5c34fedde22.zip | |
Merge branches 'acpi-pci' and 'pm-pci'
* acpi-pci:
x86/PCI/ACPI: Fix regression caused by commit 4d6b4e69a245
* pm-pci:
PCI / PM: Tune down retryable runtime suspend error messages
Diffstat (limited to 'arch/arm/mm/fault.c')
| -rw-r--r-- | arch/arm/mm/fault.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 0d629b8f973f..daafcf121ce0 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -593,6 +593,28 @@ do_PrefetchAbort(unsigned long addr, unsigned int ifsr, struct pt_regs *regs) arm_notify_die("", regs, &info, ifsr, 0); } +/* + * Abort handler to be used only during first unmasking of asynchronous aborts + * on the boot CPU. This makes sure that the machine will not die if the + * firmware/bootloader left an imprecise abort pending for us to trip over. + */ +static int __init early_abort_handler(unsigned long addr, unsigned int fsr, + struct pt_regs *regs) +{ + pr_warn("Hit pending asynchronous external abort (FSR=0x%08x) during " + "first unmask, this is most likely caused by a " + "firmware/bootloader bug.\n", fsr); + + return 0; +} + +void __init early_abt_enable(void) +{ + fsr_info[22].fn = early_abort_handler; + local_abt_enable(); + fsr_info[22].fn = do_bad; +} + #ifndef CONFIG_ARM_LPAE static int __init exceptions_init(void) { |