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Commit 7e29393b authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

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: 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/20151104220849.631111846@linutronix.de
parent 4727da2e

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(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);

arch/x86/kernel/apic/ipi.c

+8 −0
Original line number Diff line number Diff line
@@ -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,