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| author | Thomas Gleixner <tglx@linutronix.de> | 2015-11-04 22:57:07 +0000 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2015-11-05 13:07:53 +0100 |
| commit | 7e29393b20a1a863a5f9bf48dc71e5cff4035ff5 (patch) | |
| tree | 76e9a9166b0d205e15457399e7115ac1b6aef3e4 /arch | |
| parent | 4727da2eb1ec79fdc2acdd2f764b5b2aacab998c (diff) | |
| download | linux-7e29393b20a1a863a5f9bf48dc71e5cff4035ff5.tar.gz | |
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
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/include/asm/ipi.h | 1 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/ipi.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ipi.h b/arch/x86/include/asm/ipi.h index 22998a8f8d28..cfc9a0d2d07c 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(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); diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c index 4fcffbf024c9..eb45fc9b6124 100644 --- a/arch/x86/kernel/apic/ipi.c +++ b/arch/x86/kernel/apic/ipi.c @@ -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, |