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x86/apic: Provide default send single IPI wrapper 

Instead of doing the wrapping in the smp code we can provide a default
wrapper for those APICs which insist on cpumasks.

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/20151104220849.631111846@linutronix.de
This commit is contained in:
Thomas Gleixner 2015-11-04 22:57:07 +00:00
parent 4727da2eb1
commit 7e29393b20
2 changed files with 9 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(int cpu, int vector);
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);

8
arch/x86/kernel/apic/ipi.c
View File

@ -65,6 +65,14 @@ void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
local_irq_restore(flags);
}
/*
* Helper function for APICs which insist on cpumasks
*/
void default_send_IPI_single(int cpu, int vector)
{
apic->send_IPI_mask(cpumask_of(cpu), vector);
}
#ifdef CONFIG_X86_32
void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,