projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | */ | |
| df9ee292 DH |
8 | #ifndef ARCH_IRQ_DISABLED |
| 9 | #define ARCH_IRQ_DISABLED 0 | |
| 10 | #define ARCH_IRQ_ENABLED 1 | |
| aafe4dbe AB |
11 | #endif |
| 12 | ||
| 13 | /* read interrupt enabled status */ | |
| df9ee292 DH |
14 | #ifndef arch_local_save_flags |
| 15 | unsigned long arch_local_save_flags(void); | |
| aafe4dbe AB |
16 | #endif |
| 17 | ||
| 18 | /* set interrupt enabled status */ | |
| df9ee292 DH |
19 | #ifndef arch_local_irq_restore |
| 20 | void arch_local_irq_restore(unsigned long flags); | |
| aafe4dbe AB |
21 | #endif |
| 22 | ||
| 23 | /* get status and disable interrupts */ | |
| df9ee292 DH |
24 | #ifndef arch_local_irq_save |
| 25 | static inline unsigned long arch_local_irq_save(void) | |
| aafe4dbe AB |
26 | { |
| 27 | unsigned long flags; | |
| df9ee292 DH |
28 | flags = arch_local_save_flags(); |
| 29 | arch_local_irq_restore(ARCH_IRQ_DISABLED); | |
| aafe4dbe AB |
30 | return flags; |
| 31 | } | |
| 32 | #endif | |
| 33 | ||
| 34 | /* test flags */ | |
| df9ee292 DH |
35 | #ifndef arch_irqs_disabled_flags |
| 36 | static inline int arch_irqs_disabled_flags(unsigned long flags) | |
| aafe4dbe | 37 | { |
| df9ee292 | 38 | return flags == ARCH_IRQ_DISABLED; |
| aafe4dbe AB |
39 | } |
| 40 | #endif | |
| 41 | ||
| 42 | /* unconditionally enable interrupts */ | |
| df9ee292 DH |
43 | #ifndef arch_local_irq_enable |
| 44 | static inline void arch_local_irq_enable(void) | |
| aafe4dbe | 45 | { |
| df9ee292 | 46 | arch_local_irq_restore(ARCH_IRQ_ENABLED); |
| aafe4dbe AB |
47 | } |
| 48 | #endif | |
| 49 | ||
| 50 | /* unconditionally disable interrupts */ | |
| df9ee292 DH |
51 | #ifndef arch_local_irq_disable |
| 52 | static inline void arch_local_irq_disable(void) | |
| aafe4dbe | 53 | { |
| df9ee292 | 54 | arch_local_irq_restore(ARCH_IRQ_DISABLED); |
| aafe4dbe AB |
55 | } |
| 56 | #endif | |
| 57 | ||
| 58 | /* test hardware interrupt enable bit */ | |
| df9ee292 DH |
59 | #ifndef arch_irqs_disabled |
| 60 | static inline int arch_irqs_disabled(void) | |
| aafe4dbe | 61 | { |
| df9ee292 | 62 | return arch_irqs_disabled_flags(arch_local_save_flags()); |
| aafe4dbe AB |
63 | } |
| 64 | #endif | |
| 65 | ||
| aafe4dbe | 66 | #endif /* __ASM_GENERIC_IRQFLAGS_H */ |