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x86 / PM: Set IRQCHIP_SKIP_SET_WAKE for IOAPIC IRQ chip objects

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Set the IRQCHIP_SKIP_SET_WAKE for IOAPIC IRQ chip objects so that
interrupts from them can work as wakeup interrupts for suspend-to-idle.

After this change, running enable_irq_wake() on one of the IRQs in
question will succeed and IRQD_WAKEUP_STATE will be set for it, so
all of the suspend-to-idle wakeup mechanics introduced previously
will work for it automatically.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2014-09-01 13:49:07 +02:00
parent 9ce7a25849
commit 5613570b13
1 changed files with 5 additions and 0 deletions
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5
arch/x86/kernel/apic/io_apic.c
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@ -2623,6 +2623,7 @@ static struct irq_chip ioapic_chip __read_mostly = {
.irq_eoi = ack_apic_level,
.irq_set_affinity = native_ioapic_set_affinity,
.irq_retrigger = ioapic_retrigger_irq,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
static inline void init_IO_APIC_traps(void)
@ -3173,6 +3174,7 @@ static struct irq_chip msi_chip = {
.irq_ack = ack_apic_edge,
.irq_set_affinity = msi_set_affinity,
.irq_retrigger = ioapic_retrigger_irq,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
@ -3271,6 +3273,7 @@ static struct irq_chip dmar_msi_type = {
.irq_ack = ack_apic_edge,
.irq_set_affinity = dmar_msi_set_affinity,
.irq_retrigger = ioapic_retrigger_irq,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
int arch_setup_dmar_msi(unsigned int irq)
@ -3321,6 +3324,7 @@ static struct irq_chip hpet_msi_type = {
.irq_ack = ack_apic_edge,
.irq_set_affinity = hpet_msi_set_affinity,
.irq_retrigger = ioapic_retrigger_irq,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
int default_setup_hpet_msi(unsigned int irq, unsigned int id)
@ -3384,6 +3388,7 @@ static struct irq_chip ht_irq_chip = {
.irq_ack = ack_apic_edge,
.irq_set_affinity = ht_set_affinity,
.irq_retrigger = ioapic_retrigger_irq,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
int arch_setup_ht_irq(unsigned int irq, struct pci_dev *dev)