diff options
| author | James Morse <james.morse@arm.com> | 2015-12-04 14:02:27 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-12-08 14:42:51 +0300 |
| commit | 8e23dacd12a48e58125b84c817da50850b73280a (patch) | |
| tree | b920b408538982d88d9482fc2c28f1b361062648 /arch/arm64/include/asm/irq.h | |
| parent | 132cd887b5c54758d04bf25c52fa48f45e843a30 (diff) | |
| download | linux-8e23dacd12a48e58125b84c817da50850b73280a.tar.xz | |
arm64: Add do_softirq_own_stack() and enable irq_stacks
entry.S is modified to switch to the per_cpu irq_stack during el{0,1}_irq.
irq_count is used to detect recursive interrupts on the irq_stack, it is
updated late by do_softirq_own_stack(), when called on the irq_stack, before
__do_softirq() re-enables interrupts to process softirqs.
do_softirq_own_stack() is added by this patch, but does not yet switch
stack.
This patch adds the dummy stack frame and data needed by the previous
stack tracing patches.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/irq.h')
| -rw-r--r-- | arch/arm64/include/asm/irq.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h index e2f3f135a3bc..fa2a8d0e4792 100644 --- a/arch/arm64/include/asm/irq.h +++ b/arch/arm64/include/asm/irq.h @@ -11,6 +11,8 @@ #include <asm-generic/irq.h> #include <asm/thread_info.h> +#define __ARCH_HAS_DO_SOFTIRQ + struct pt_regs; DECLARE_PER_CPU(unsigned long [IRQ_STACK_SIZE/sizeof(long)], irq_stack); |