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Groups > linux.kernel > #1262695

[patch 12/14] x86/apic: Provide default send single IPI wrapper

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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>
---
 arch/x86/include/asm/ipi.h |    1 +
 arch/x86/kernel/apic/ipi.c |    8 ++++++++
 2 files changed, 9 insertions(+)

Index: linux/arch/x86/include/asm/ipi.h
===================================================================
--- linux.orig/arch/x86/include/asm/ipi.h
+++ linux/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);
Index: linux/arch/x86/kernel/apic/ipi.c
===================================================================
--- linux.orig/arch/x86/kernel/apic/ipi.c
+++ linux/arch/x86/kernel/apic/ipi.c
@@ -65,6 +65,14 @@ void default_send_IPI_mask_allbutself_ph
 	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,


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[patch 12/14] x86/apic: Provide default send single IPI wrapper Thomas Gleixner <tglx@linutronix.de> - 2015-11-05 00:00 +0100
  [tip:x86/apic] x86/apic: Provide default send single IPI wrapper tip-bot for Thomas Gleixner <tipbot@zytor.com> - 2015-11-05 15:50 +0100

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