diff options
Diffstat (limited to 'include/linux/irqdesc.h')
| -rw-r--r-- | include/linux/irqdesc.h | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index fd091c35d572..dae9a9b93665 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -2,9 +2,10 @@ #ifndef _LINUX_IRQDESC_H #define _LINUX_IRQDESC_H -#include <linux/rcupdate.h> +#include <linux/irq_work.h> #include <linux/kobject.h> #include <linux/mutex.h> +#include <linux/rcupdate.h> /* * Core internal functions to deal with irq descriptors @@ -30,6 +31,17 @@ struct irqstat { }; /** + * struct irq_redirect - interrupt redirection metadata + * @work: Harg irq_work item for handler execution on a different CPU + * @target_cpu: CPU to run irq handler on in case the current CPU is not part + * of the irq affinity mask + */ +struct irq_redirect { + struct irq_work work; + unsigned int target_cpu; +}; + +/** * struct irq_desc - interrupt descriptor * @irq_common_data: per irq and chip data passed down to chip functions * @kstat_irqs: irq stats per cpu @@ -46,6 +58,7 @@ struct irqstat { * @threads_handled: stats field for deferred spurious detection of threaded handlers * @threads_handled_last: comparator field for deferred spurious detection of threaded handlers * @lock: locking for SMP + * @redirect: Facility for redirecting interrupts via irq_work * @affinity_hint: hint to user space for preferred irq affinity * @affinity_notify: context for notification of affinity changes * @pending_mask: pending rebalanced interrupts @@ -82,8 +95,8 @@ struct irq_desc { int threads_handled_last; raw_spinlock_t lock; struct cpumask *percpu_enabled; - const struct cpumask *percpu_affinity; #ifdef CONFIG_SMP + struct irq_redirect redirect; const struct cpumask *affinity_hint; struct irq_affinity_notify *affinity_notify; #ifdef CONFIG_GENERIC_PENDING_IRQ @@ -183,9 +196,10 @@ int generic_handle_irq_safe(unsigned int irq); * and handle the result interrupt number. Return -EINVAL if * conversion failed. */ -int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq); -int generic_handle_domain_irq_safe(struct irq_domain *domain, unsigned int hwirq); -int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq); +int generic_handle_domain_irq(struct irq_domain *domain, irq_hw_number_t hwirq); +int generic_handle_domain_irq_safe(struct irq_domain *domain, irq_hw_number_t hwirq); +int generic_handle_domain_nmi(struct irq_domain *domain, irq_hw_number_t hwirq); +bool generic_handle_demux_domain_irq(struct irq_domain *domain, irq_hw_number_t hwirq); #endif /* Test to see if a driver has successfully requested an irq */ |