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Commit 53be0fac authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

x86/apic: Implement default single target IPI function 



apic_physflat and bigsmp_apic can share that implementation.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Reviewed-by: default avatarIngo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Borislav Petkov <bp@alien.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Travis <travis@sgi.com>
Cc: Daniel J Blueman <daniel@numascale.com>
Link: http://lkml.kernel.org/r/20151104220848.898543767@linutronix.de
parent 7b6ce46c

arch/x86/include/asm/ipi.h

+1 −0
Original line number Diff line number Diff line
@@ -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,

arch/x86/kernel/apic/ipi.c

+10 −0
Original line number Diff line number Diff line
@@ -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;