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aafe4dbe AB |
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 | |
15 | unsigned long __raw_local_save_flags(void); | |
16 | #endif | |
17 | ||
18 | /* set interrupt enabled status */ | |
19 | #ifndef raw_local_irq_restore | |
20 | void raw_local_irq_restore(unsigned long flags); | |
21 | #endif | |
22 | ||
23 | /* get status and disable interrupts */ | |
24 | #ifndef __raw_local_irq_save | |
25 | static 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 | |
36 | static 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 | |
44 | static 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 | |
52 | static 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 | |
60 | static 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 */ |