1 #ifndef _INTERNAL_ATOMIC_H
2 #define _INTERNAL_ATOMIC_H
6 static inline int a_ctz_64(uint64_t x)
15 static inline int a_ctz_l(unsigned long x)
20 static inline void a_barrier()
22 __asm__ __volatile__("dmb ish");
25 static inline void *a_cas_p(volatile void *p, void *t, void *s)
38 : "r"(t), "r"(s), "Q"(*(long*)p)
43 static inline int a_cas(volatile int *p, int t, int s)
56 : "r"(t), "r"(s), "Q"(*p)
61 static inline int a_swap(volatile int *x, int v)
70 : "=&r"(old), "=&r"(tmp)
76 static inline int a_fetch_add(volatile int *x, int v)
86 : "=&r"(old), "=&r"(tmp)
92 static inline void a_inc(volatile int *x)
102 : "=&r"(tmp), "=&r"(tmp2)
107 static inline void a_dec(volatile int *x)
110 __asm__ __volatile__(
117 : "=&r"(tmp), "=&r"(tmp2)
122 static inline void a_and_64(volatile uint64_t *p, uint64_t v)
125 __asm__ __volatile__(
132 : "=&r"(tmp), "=&r"(tmp2)
137 static inline void a_and(volatile int *p, int v)
140 __asm__ __volatile__(
147 : "=&r"(tmp), "=&r"(tmp2)
152 static inline void a_or_64(volatile uint64_t *p, uint64_t v)
155 __asm__ __volatile__(
162 : "=&r"(tmp), "=&r"(tmp2)
167 static inline void a_or_l(volatile void *p, long v)
169 return a_or_64(p, v);
172 static inline void a_or(volatile int *p, int v)
175 __asm__ __volatile__(
182 : "=&r"(tmp), "=&r"(tmp2)
187 static inline void a_store(volatile int *p, int x)
189 __asm__ __volatile__(
198 #define a_spin a_barrier
200 static inline void a_crash()
202 *(volatile char *)0=0;