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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>
Reviewed-by: Ingo 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
This commit is contained in:
Thomas Gleixner 2015-11-04 22:57:01 +00:00
parent 7b6ce46cb3
commit 53be0fac8b
2 changed files with 11 additions and 0 deletions
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1
arch/x86/include/asm/ipi.h
View File

@ -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,

10
arch/x86/kernel/apic/ipi.c
View File

@ -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;