Commit-ID: 53be0fac8bdaeec87e0df7d0334345421d2be187 Gitweb: http://git.kernel.org/tip/53be0fac8bdaeec87e0df7d0334345421d2be187 Author: Thomas Gleixner <t...@linutronix.de> AuthorDate: Wed, 4 Nov 2015 22:57:01 +0000 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Thu, 5 Nov 2015 13:07:52 +0100
x86/apic: Implement default single target IPI function apic_physflat and bigsmp_apic can share that implementation. Signed-off-by: Thomas Gleixner <t...@linutronix.de> Reviewed-by: Ingo Molnar <mi...@kernel.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Borislav Petkov <b...@alien.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Mike Travis <tra...@sgi.com> Cc: Daniel J Blueman <dan...@numascale.com> Link: http://lkml.kernel.org/r/20151104220848.898543...@linutronix.de --- arch/x86/include/asm/ipi.h | 1 + arch/x86/kernel/apic/ipi.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/arch/x86/include/asm/ipi.h b/arch/x86/include/asm/ipi.h index 615fa90..22998a8 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 6207156..4fcffbf 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; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
