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authorDan Williams <dan.j.williams@intel.com>2009-09-08 20:55:21 -0400
committerDan Williams <dan.j.williams@intel.com>2009-09-08 20:55:21 -0400
commitbbb20089a3275a19e475dbc21320c3742e3ca423 (patch)
tree216fdc1cbef450ca688135c5b8969169482d9a48 /include/asm-generic/irqflags.h
parent3e48e656903e9fd8bc805c6a2c4264d7808d315b (diff)
parent657a77fa7284d8ae28dfa48f1dc5d919bf5b2843 (diff)
Merge branch 'dmaengine' into async-tx-next
Conflicts: crypto/async_tx/async_xor.c drivers/dma/ioat/dma_v2.h drivers/dma/ioat/pci.c drivers/md/raid5.c
Diffstat (limited to 'include/asm-generic/irqflags.h')
-rw-r--r--include/asm-generic/irqflags.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h
new file mode 100644
index 000000000000..9aebf618275a
--- /dev/null
+++ b/include/asm-generic/irqflags.h
@@ -0,0 +1,72 @@
1#ifndef __ASM_GENERIC_IRQFLAGS_H
2#define __ASM_GENERIC_IRQFLAGS_H
3
4/*
5 * All architectures should implement at least the first two functions,
6 * usually inline assembly will be the best way.
7 */
8#ifndef RAW_IRQ_DISABLED
9#define RAW_IRQ_DISABLED 0
10#define RAW_IRQ_ENABLED 1
11#endif
12
13/* read interrupt enabled status */
14#ifndef __raw_local_save_flags
15unsigned long __raw_local_save_flags(void);
16#endif
17
18/* set interrupt enabled status */
19#ifndef raw_local_irq_restore
20void raw_local_irq_restore(unsigned long flags);
21#endif
22
23/* get status and disable interrupts */
24#ifndef __raw_local_irq_save
25static inline unsigned long __raw_local_irq_save(void)
26{
27 unsigned long flags;
28 flags = __raw_local_save_flags();
29 raw_local_irq_restore(RAW_IRQ_DISABLED);
30 return flags;
31}
32#endif
33
34/* test flags */
35#ifndef raw_irqs_disabled_flags
36static inline int raw_irqs_disabled_flags(unsigned long flags)
37{
38 return flags == RAW_IRQ_DISABLED;
39}
40#endif
41
42/* unconditionally enable interrupts */
43#ifndef raw_local_irq_enable
44static inline void raw_local_irq_enable(void)
45{
46 raw_local_irq_restore(RAW_IRQ_ENABLED);
47}
48#endif
49
50/* unconditionally disable interrupts */
51#ifndef raw_local_irq_disable
52static inline void raw_local_irq_disable(void)
53{
54 raw_local_irq_restore(RAW_IRQ_DISABLED);
55}
56#endif
57
58/* test hardware interrupt enable bit */
59#ifndef raw_irqs_disabled
60static inline int raw_irqs_disabled(void)
61{
62 return raw_irqs_disabled_flags(__raw_local_save_flags());
63}
64#endif
65
66#define raw_local_save_flags(flags) \
67 do { (flags) = __raw_local_save_flags(); } while (0)
68
69#define raw_local_irq_save(flags) \
70 do { (flags) = __raw_local_irq_save(); } while (0)
71
72#endif /* __ASM_GENERIC_IRQFLAGS_H */