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-rw-r--r--arch/x86/kernel/apic/msi.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 76cc2c902176..9be7d6d8a579 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -223,6 +223,16 @@ int arch_setup_dmar_msi(unsigned int irq)
"edge");
return 0;
}
+
+int dmar_alloc_hwirq(void)
+{
+ return irq_domain_alloc_irqs(NULL, 1, NUMA_NO_NODE, NULL);
+}
+
+void dmar_free_hwirq(int irq)
+{
+ irq_domain_free_irqs(irq, 1);
+}
#endif
/*
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