1#ifndef __ASM_CRIS_ARCH_ATOMIC__ 2#define __ASM_CRIS_ARCH_ATOMIC__ 3 4#include <asm/system.h> 5 6extern void cris_spin_unlock(void *l, int val); 7extern void cris_spin_lock(void *l); 8extern int cris_spin_trylock(void* l); 9 10#ifndef CONFIG_SMP 11#define cris_atomic_save(addr, flags) local_irq_save(flags); 12#define cris_atomic_restore(addr, flags) local_irq_restore(flags); 13#else 14 15extern spinlock_t cris_atomic_locks[]; 16#define LOCK_COUNT 128 17#define HASH_ADDR(a) (((int)a) & 127) 18 19#define cris_atomic_save(addr, flags) \ 20 local_irq_save(flags); \ 21 cris_spin_lock((void*)&cris_atomic_locks[HASH_ADDR(addr)].lock); 22 23#define cris_atomic_restore(addr, flags) \ 24 { \ 25 spinlock_t *lock = (void*)&cris_atomic_locks[HASH_ADDR(addr)]; \ 26 __asm__ volatile ("move.d %1,%0" \ 27 : "=m" (lock->lock) \ 28 : "r" (1) \ 29 : "memory"); \ 30 local_irq_restore(flags); \ 31 } 32 33#endif 34 35#endif 36