diff options
Diffstat (limited to 'include/linux/interrupt.h')
| -rw-r--r-- | include/linux/interrupt.h | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 2721f07e9354..b78cf8194957 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -14,6 +14,7 @@ #include <linux/irqflags.h> #include <linux/smp.h> #include <linux/percpu.h> +#include <linux/hrtimer.h> #include <asm/atomic.h> #include <asm/ptrace.h> @@ -49,6 +50,9 @@ * IRQF_IRQPOLL - Interrupt is used for polling (only the interrupt that is * registered first in an shared interrupt is considered for * performance reasons) + * IRQF_ONESHOT - Interrupt is not reenabled after the hardirq handler finished. + * Used by threaded interrupts which need to keep the + * irq line disabled until the threaded handler has been run. */ #define IRQF_DISABLED 0x00000020 #define IRQF_SAMPLE_RANDOM 0x00000040 @@ -58,17 +62,20 @@ #define IRQF_PERCPU 0x00000400 #define IRQF_NOBALANCING 0x00000800 #define IRQF_IRQPOLL 0x00001000 +#define IRQF_ONESHOT 0x00002000 /* * Bits used by threaded handlers: * IRQTF_RUNTHREAD - signals that the interrupt handler thread should run * IRQTF_DIED - handler thread died * IRQTF_WARNED - warning "IRQ_WAKE_THREAD w/o thread_fn" has been printed + * IRQTF_AFFINITY - irq thread is requested to adjust affinity */ enum { IRQTF_RUNTHREAD, IRQTF_DIED, IRQTF_WARNED, + IRQTF_AFFINITY, }; typedef irqreturn_t (*irq_handler_t)(int, void *); @@ -77,7 +84,6 @@ typedef irqreturn_t (*irq_handler_t)(int, void *); * struct irqaction - per interrupt action descriptor * @handler: interrupt handler function * @flags: flags (see IRQF_* above) - * @mask: no comment as it is useless and about to be removed * @name: name of the device * @dev_id: cookie to identify the device * @next: pointer to the next irqaction for shared interrupts @@ -90,7 +96,6 @@ typedef irqreturn_t (*irq_handler_t)(int, void *); struct irqaction { irq_handler_t handler; unsigned long flags; - cpumask_t mask; const char *name; void *dev_id; struct irqaction *next; @@ -341,6 +346,7 @@ enum NET_TX_SOFTIRQ, NET_RX_SOFTIRQ, BLOCK_SOFTIRQ, + BLOCK_IOPOLL_SOFTIRQ, TASKLET_SOFTIRQ, SCHED_SOFTIRQ, HRTIMER_SOFTIRQ, @@ -517,6 +523,31 @@ extern void tasklet_kill_immediate(struct tasklet_struct *t, unsigned int cpu); extern void tasklet_init(struct tasklet_struct *t, void (*func)(unsigned long), unsigned long data); +struct tasklet_hrtimer { + struct hrtimer timer; + struct tasklet_struct tasklet; + enum hrtimer_restart (*function)(struct hrtimer *); +}; + +extern void +tasklet_hrtimer_init(struct tasklet_hrtimer *ttimer, + enum hrtimer_restart (*function)(struct hrtimer *), + clockid_t which_clock, enum hrtimer_mode mode); + +static inline +int tasklet_hrtimer_start(struct tasklet_hrtimer *ttimer, ktime_t time, + const enum hrtimer_mode mode) +{ + return hrtimer_start(&ttimer->timer, time, mode); +} + +static inline +void tasklet_hrtimer_cancel(struct tasklet_hrtimer *ttimer) +{ + hrtimer_cancel(&ttimer->timer); + tasklet_kill(&ttimer->tasklet); +} + /* * Autoprobing for irqs: * |