diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2014-08-16 18:47:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-10-15 12:29:23 +0200 |
| commit | 6c3dfd886da9fd6529693fd0b2cd5f9fb8acd298 (patch) | |
| tree | df4a4bde716f9e6351cf74c574afe04abd7bad3d /arch | |
| parent | 1d3408209d43d2e72b5d8dbfb9b60fece399d75b (diff) | |
arm: Tell irq work about self IPI support
commit 09f6edd424218eb69078551b2ecfada1f2d098eb upstream.
ARM irq work IPI support depends on SMP support. That information is
partly known at early boottime. Lets implement
arch_irq_work_has_interrupt() accordingly.
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/include/asm/Kbuild | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/irq_work.h | 11 | ||||
| -rw-r--r-- | arch/arm/kernel/smp.c | 2 |
3 files changed, 12 insertions, 2 deletions
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index 202905e7ea0c..70cd84eb7fda 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -11,7 +11,6 @@ generic-y += hash.h generic-y += ioctl.h generic-y += ipcbuf.h generic-y += irq_regs.h -generic-y += irq_work.h generic-y += kdebug.h generic-y += local.h generic-y += local64.h diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h new file mode 100644 index 000000000000..712d03e5973a --- /dev/null +++ b/arch/arm/include/asm/irq_work.h @@ -0,0 +1,11 @@ +#ifndef __ASM_ARM_IRQ_WORK_H +#define __ASM_ARM_IRQ_WORK_H + +#include <asm/smp_plat.h> + +static inline bool arch_irq_work_has_interrupt(void) +{ + return is_smp(); +} + +#endif /* _ASM_ARM_IRQ_WORK_H */ diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 9388a3d479e1..bbe22fcb78f6 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -503,7 +503,7 @@ void arch_send_call_function_single_ipi(int cpu) #ifdef CONFIG_IRQ_WORK void arch_irq_work_raise(void) { - if (is_smp()) + if (arch_irq_work_has_interrupt()) smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK); } #endif |