| Arnd Bergmann | aafe4db | 2009-05-13 22:56:33 +0000 | [diff] [blame] | 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 */ |