| Robert Reif | e8dd161 | 2007-09-27 13:15:31 -0700 | [diff] [blame] | 1 | /* | 
|  | 2 | * include/asm-sparc/irqflags.h | 
|  | 3 | * | 
|  | 4 | * IRQ flags handling | 
|  | 5 | * | 
|  | 6 | * This file gets included from lowlevel asm headers too, to provide | 
|  | 7 | * wrapped versions of the local_irq_*() APIs, based on the | 
|  | 8 | * raw_local_irq_*() functions from the lowlevel headers. | 
|  | 9 | */ | 
|  | 10 | #ifndef _ASM_IRQFLAGS_H | 
|  | 11 | #define _ASM_IRQFLAGS_H | 
|  | 12 |  | 
|  | 13 | #ifndef __ASSEMBLY__ | 
|  | 14 |  | 
|  | 15 | extern void raw_local_irq_restore(unsigned long); | 
|  | 16 | extern unsigned long __raw_local_irq_save(void); | 
|  | 17 | extern void raw_local_irq_enable(void); | 
|  | 18 |  | 
|  | 19 | static inline unsigned long getipl(void) | 
|  | 20 | { | 
|  | 21 | unsigned long retval; | 
|  | 22 |  | 
|  | 23 | __asm__ __volatile__("rd        %%psr, %0" : "=r" (retval)); | 
|  | 24 | return retval; | 
|  | 25 | } | 
|  | 26 |  | 
|  | 27 | #define raw_local_save_flags(flags) ((flags) = getipl()) | 
|  | 28 | #define raw_local_irq_save(flags)   ((flags) = __raw_local_irq_save()) | 
|  | 29 | #define raw_local_irq_disable()     ((void) __raw_local_irq_save()) | 
|  | 30 | #define raw_irqs_disabled()         ((getipl() & PSR_PIL) != 0) | 
|  | 31 |  | 
|  | 32 | static inline int raw_irqs_disabled_flags(unsigned long flags) | 
|  | 33 | { | 
|  | 34 | return ((flags & PSR_PIL) != 0); | 
|  | 35 | } | 
|  | 36 |  | 
|  | 37 | #endif /* (__ASSEMBLY__) */ | 
|  | 38 |  | 
|  | 39 | #endif /* !(_ASM_IRQFLAGS_H) */ |