diff options
Diffstat (limited to 'arch/arm64/kernel/irq.c')
| -rw-r--r-- | arch/arm64/kernel/irq.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c index 2386b26c0712..5141282e47d5 100644 --- a/arch/arm64/kernel/irq.c +++ b/arch/arm64/kernel/irq.c @@ -32,6 +32,7 @@ unsigned long irq_err_count; /* irq stack only needs to be 16 byte aligned - not IRQ_STACK_SIZE aligned. */ DEFINE_PER_CPU(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack) __aligned(16); +DEFINE_PER_CPU(unsigned long *, irq_stack_ptr); int arch_show_interrupts(struct seq_file *p, int prec) { @@ -50,8 +51,17 @@ void __init set_handle_irq(void (*handle_irq)(struct pt_regs *)) handle_arch_irq = handle_irq; } +static void init_irq_stacks(void) +{ + int cpu; + + for_each_possible_cpu(cpu) + per_cpu(irq_stack_ptr, cpu) = per_cpu(irq_stack, cpu); +} + void __init init_IRQ(void) { + init_irq_stacks(); irqchip_init(); if (!handle_arch_irq) panic("No interrupt controller found."); |