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authorThomas Gleixner <[email protected]>2015-11-04 22:57:01 +0000
committerThomas Gleixner <[email protected]>2015-11-05 13:07:52 +0100
commit53be0fac8bdaeec87e0df7d0334345421d2be187 (patch)
tree18b2fcd96b7a6ae9524ca87f5728c509c6a76c6d
parent7b6ce46cb3d096831dea3accacee4717c66abac8 (diff)
x86/apic: Implement default single target IPI function
apic_physflat and bigsmp_apic can share that implementation. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Ingo Molnar <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Mike Travis <[email protected]> Cc: Daniel J Blueman <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
-rw-r--r--arch/x86/include/asm/ipi.h1
-rw-r--r--arch/x86/kernel/apic/ipi.c10
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ipi.h b/arch/x86/include/asm/ipi.h
index 615fa9061b57..22998a8f8d28 100644
--- a/arch/x86/include/asm/ipi.h
+++ b/arch/x86/include/asm/ipi.h
@@ -119,6 +119,7 @@ static inline void
native_apic_mem_write(APIC_ICR, cfg);
}
+extern void default_send_IPI_single_phys(int cpu, int vector);
extern void default_send_IPI_mask_sequence_phys(const struct cpumask *mask,
int vector);
extern void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index 62071569bd50..4fcffbf024c9 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -18,6 +18,16 @@
#include <asm/proto.h>
#include <asm/ipi.h>
+void default_send_IPI_single_phys(int cpu, int vector)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ __default_send_IPI_dest_field(per_cpu(x86_cpu_to_apicid, cpu),
+ vector, APIC_DEST_PHYSICAL);
+ local_irq_restore(flags);
+}
+
void default_send_IPI_mask_sequence_phys(const struct cpumask *mask, int vector)
{
unsigned long query_cpu;