diff options
Diffstat (limited to 'arch/arm/include/asm/fiq.h')
| -rw-r--r-- | arch/arm/include/asm/fiq.h | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/arm/include/asm/fiq.h b/arch/arm/include/asm/fiq.h index 2242ce22ec6..d493d0b742a 100644 --- a/arch/arm/include/asm/fiq.h +++ b/arch/arm/include/asm/fiq.h @@ -4,6 +4,13 @@ * Support for FIQ on ARM architectures. * Written by Philip Blundell <philb@gnu.org>, 1998 * Re-written by Russell King + * + * NOTE: The FIQ mode registers are not magically preserved across + * suspend/resume. + * + * Drivers which require these registers to be preserved across power + * management operations must implement appropriate suspend/resume handlers to + * save and restore them. */ #ifndef __ASM_FIQ_H @@ -29,9 +36,21 @@ struct fiq_handler { extern int claim_fiq(struct fiq_handler *f); extern void release_fiq(struct fiq_handler *f); extern void set_fiq_handler(void *start, unsigned int length); -extern void set_fiq_regs(struct pt_regs *regs); -extern void get_fiq_regs(struct pt_regs *regs); extern void enable_fiq(int fiq); extern void disable_fiq(int fiq); +/* helpers defined in fiqasm.S: */ +extern void __set_fiq_regs(unsigned long const *regs); +extern void __get_fiq_regs(unsigned long *regs); + +static inline void set_fiq_regs(struct pt_regs const *regs) +{ + __set_fiq_regs(®s->ARM_r8); +} + +static inline void get_fiq_regs(struct pt_regs *regs) +{ + __get_fiq_regs(®s->ARM_r8); +} + #endif |