diff options
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/daifflags.h | 3 | ||||
| -rw-r--r-- | arch/arm64/include/asm/irqflags.h | 6 | ||||
| -rw-r--r-- | arch/arm64/kernel/setup.c | 8 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 3 |
4 files changed, 9 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/daifflags.h b/arch/arm64/include/asm/daifflags.h index 55e2598a8c4c..22e4c83de5a5 100644 --- a/arch/arm64/include/asm/daifflags.h +++ b/arch/arm64/include/asm/daifflags.h @@ -18,6 +18,9 @@ #include <linux/irqflags.h> +#define DAIF_PROCCTX 0 +#define DAIF_PROCCTX_NOIRQ PSR_I_BIT + /* mask/save/unmask/restore all exceptions, including interrupts. */ static inline void local_daif_mask(void) { diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h index 9ecdca7011f0..24692edf1a69 100644 --- a/arch/arm64/include/asm/irqflags.h +++ b/arch/arm64/include/asm/irqflags.h @@ -66,12 +66,6 @@ static inline void arch_local_irq_disable(void) : "memory"); } -#define local_fiq_enable() asm("msr daifclr, #1" : : : "memory") -#define local_fiq_disable() asm("msr daifset, #1" : : : "memory") - -#define local_async_enable() asm("msr daifclr, #4" : : : "memory") -#define local_async_disable() asm("msr daifset, #4" : : : "memory") - /* * Save the current interrupt enable state. */ diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 4bab73e80e33..30ad2f085d1f 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -47,6 +47,7 @@ #include <asm/fixmap.h> #include <asm/cpu.h> #include <asm/cputype.h> +#include <asm/daifflags.h> #include <asm/elf.h> #include <asm/cpufeature.h> #include <asm/cpu_ops.h> @@ -259,10 +260,11 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); /* - * Unmask asynchronous aborts after bringing up possible earlycon. - * (Report possible System Errors once we can report this occurred) + * Unmask asynchronous aborts and fiq after bringing up possible + * earlycon. (Report possible System Errors once we can report this + * occurred). */ - local_async_enable(); + local_daif_restore(DAIF_PROCCTX_NOIRQ); /* * TTBR0 is only used for the identity mapping at this stage. Make it diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index c94f4a6515c4..551eb07c53b6 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -274,8 +274,7 @@ asmlinkage void secondary_start_kernel(void) set_cpu_online(cpu, true); complete(&cpu_running); - local_irq_enable(); - local_async_enable(); + local_daif_restore(DAIF_PROCCTX); /* * OK, it's off to the idle thread for us |