Commit-ID: 09f6edd424218eb69078551b2ecfada1f2d098eb
Gitweb: http://git.kernel.org/tip/09f6edd424218eb69078551b2ecfada1f2d098eb
Author: Frederic Weisbecker <fweisbec@xxxxxxxxx>
AuthorDate: Sat, 16 Aug 2014 18:47:53 +0200
Committer: Frederic Weisbecker <fweisbec@xxxxxxxxx>
CommitDate: Sat, 13 Sep 2014 18:38:39 +0200
arm: Tell irq work about self IPI support
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@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
---
arch/arm/include/asm/Kbuild | 1 -
arch/arm/include/asm/irq_work.h | 11 +++++++++++
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 202905e..70cd84e 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 0000000..712d03e
--- /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 9388a3d..bbe22fc 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
--
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