Messages in this thread Patch in this message | | | Date | Wed, 04 Nov 2015 22:57:01 -0000 | From | Thomas Gleixner <> | Subject | [patch 03/14] x86/apic: Implement default single target IPI function |
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apic_physflat and bigsmp_apic can share that implementation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> --- arch/x86/include/asm/ipi.h | 1 + arch/x86/kernel/apic/ipi.c | 10 ++++++++++ 2 files changed, 11 insertions(+)
Index: linux/arch/x86/include/asm/ipi.h =================================================================== --- linux.orig/arch/x86/include/asm/ipi.h +++ linux/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, Index: linux/arch/x86/kernel/apic/ipi.c =================================================================== --- linux.orig/arch/x86/kernel/apic/ipi.c +++ linux/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;
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