diff options
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/apic/io_apic.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 992060e..b7175c0 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3010,6 +3010,39 @@ void destroy_irqs(unsigned int irq, unsigned int count) destroy_irq(irq + i); } +int arch_setup_hwirq(unsigned int irq, int node) +{ + struct irq_cfg *cfg; + unsigned long flags; + int ret; + + cfg = alloc_irq_cfg(irq, node); + if (!cfg) + return -ENOMEM; + + raw_spin_lock_irqsave(&vector_lock, flags); + ret = __assign_irq_vector(irq, cfg, apic->target_cpus()); + raw_spin_unlock_irqrestore(&vector_lock, flags); + + if (!ret) + irq_set_chip_data(irq, cfg); + else + free_irq_cfg(irq, cfg); + return ret; +} + +void arch_teardown_hwirq(unsigned int irq) +{ + struct irq_cfg *cfg = irq_get_chip_data(irq); + unsigned long flags; + + free_remapped_irq(irq); + raw_spin_lock_irqsave(&vector_lock, flags); + __clear_irq_vector(irq, cfg); + raw_spin_unlock_irqrestore(&vector_lock, flags); + free_irq_cfg(irq, cfg); +} + /* * MSI message composition */ |
