~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/linux/irq_work.h

Version: ~ [ linux-4.18-rc1 ] ~ [ linux-4.17.2 ] ~ [ linux-4.16.16 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.50 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.109 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.138 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.113 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.57 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.39.4 ] ~ [ linux-2.6.38.8 ] ~ [ linux-2.6.37.6 ] ~ [ linux-2.6.36.4 ] ~ [ linux-2.6.35.14 ] ~ [ linux-2.6.34.15 ] ~ [ linux-2.6.33.20 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.27.62 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef _LINUX_IRQ_WORK_H
  3 #define _LINUX_IRQ_WORK_H
  4 
  5 #include <linux/llist.h>
  6 
  7 /*
  8  * An entry can be in one of four states:
  9  *
 10  * free      NULL, 0 -> {claimed}       : free to be used
 11  * claimed   NULL, 3 -> {pending}       : claimed to be enqueued
 12  * pending   next, 3 -> {busy}          : queued, pending callback
 13  * busy      NULL, 2 -> {free, claimed} : callback in progress, can be claimed
 14  */
 15 
 16 #define IRQ_WORK_PENDING        BIT(0)
 17 #define IRQ_WORK_BUSY           BIT(1)
 18 
 19 /* Doesn't want IPI, wait for tick: */
 20 #define IRQ_WORK_LAZY           BIT(2)
 21 
 22 #define IRQ_WORK_CLAIMED        (IRQ_WORK_PENDING | IRQ_WORK_BUSY)
 23 
 24 struct irq_work {
 25         unsigned long flags;
 26         struct llist_node llnode;
 27         void (*func)(struct irq_work *);
 28 };
 29 
 30 static inline
 31 void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *))
 32 {
 33         work->flags = 0;
 34         work->func = func;
 35 }
 36 
 37 #define DEFINE_IRQ_WORK(name, _f) struct irq_work name = { .func = (_f), }
 38 
 39 bool irq_work_queue(struct irq_work *work);
 40 bool irq_work_queue_on(struct irq_work *work, int cpu);
 41 
 42 void irq_work_tick(void);
 43 void irq_work_sync(struct irq_work *work);
 44 
 45 #ifdef CONFIG_IRQ_WORK
 46 #include <asm/irq_work.h>
 47 
 48 void irq_work_run(void);
 49 bool irq_work_needs_cpu(void);
 50 #else
 51 static inline bool irq_work_needs_cpu(void) { return false; }
 52 static inline void irq_work_run(void) { }
 53 #endif
 54 
 55 #endif /* _LINUX_IRQ_WORK_H */
 56 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp