Commit-ID: 020eb3daaba2857b32c4cf4c82f503d6a00a67de
Gitweb: http://git.kernel.org/tip/020eb3daaba2857b32c4cf4c82f503d6a00a67de
Author: Ruslan Ruslichenko <[email protected]>
AuthorDate: Tue, 17 Jan 2017 16:13:52 +0200
Committer: Thomas Gleixner <[email protected]>
CommitDate: Wed, 18 Jan 2017 15:37:28 +0100
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
commit d32932d02e18 removed the irq_retrigger callback from the IO-APIC
chip and did not add it to the new IO-APIC-IR irq chip.
Unfortunately the software resend fallback is not enabled on X86, so edge
interrupts which are received during the lazy disabled state of the
interrupt line are not retriggered and therefor lost.
Restore the callbacks.
[ tglx: Massaged changelog ]
Fixes: d32932d02e18 ("x86/irq: Convert IOAPIC to use hierarchical irqdomain
interfaces")
Signed-off-by: Ruslan Ruslichenko <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link:
http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
---
arch/x86/kernel/apic/io_apic.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 945e512..1e35dd0 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1875,6 +1875,7 @@ static struct irq_chip ioapic_chip __read_mostly = {
.irq_ack = irq_chip_ack_parent,
.irq_eoi = ioapic_ack_level,
.irq_set_affinity = ioapic_set_affinity,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
@@ -1886,6 +1887,7 @@ static struct irq_chip ioapic_ir_chip __read_mostly = {
.irq_ack = irq_chip_ack_parent,
.irq_eoi = ioapic_ir_ack_level,
.irq_set_affinity = ioapic_set_affinity,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
.flags = IRQCHIP_SKIP_SET_WAKE,
};
