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Diffstat (limited to 'arch/x86_64/kernel/io_apic.c')
-rw-r--r--arch/x86_64/kernel/io_apic.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 88a8736eb8c..401b687fef2 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1618,6 +1618,13 @@ static void set_ioapic_affinity_vector (unsigned int vector,
#endif // CONFIG_SMP
#endif // CONFIG_PCI_MSI
+static int ioapic_retrigger(unsigned int irq)
+{
+ send_IPI_self(IO_APIC_VECTOR(irq));
+
+ return 1;
+}
+
/*
* Level and edge triggered IO-APIC interrupts need different handling,
* so we use two separate IRQ descriptors. Edge triggered IRQs can be
@@ -1638,6 +1645,7 @@ static struct hw_interrupt_type ioapic_edge_type __read_mostly = {
#ifdef CONFIG_SMP
.set_affinity = set_ioapic_affinity,
#endif
+ .retrigger = ioapic_retrigger,
};
static struct hw_interrupt_type ioapic_level_type __read_mostly = {
@@ -1651,6 +1659,7 @@ static struct hw_interrupt_type ioapic_level_type __read_mostly = {
#ifdef CONFIG_SMP
.set_affinity = set_ioapic_affinity,
#endif
+ .retrigger = ioapic_retrigger,
};
static inline void init_IO_APIC_traps(void)