#ifndef __SYSDEP_LOCKS_H__
#define __SYSDEP_LOCKS_H__
typedef size_t obj_addr_t;
inline static bool
compare_and_swap(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
unsigned long oldval;
__asm__ __volatile__("mov ar.ccv=%4 ;; cmpxchg8.acq %0=%1,%2,ar.ccv"
: "=r"(oldval), "=m"(*addr)
: "r"(new_val), "1"(*addr), "r"(old) : "memory");
return (oldval == old);
}
inline static void
release_set(volatile obj_addr_t *addr, obj_addr_t new_val)
{
__asm__ __volatile__(" " : : : "memory");
*(addr) = new_val;
}
inline static bool
compare_and_swap_release(volatile obj_addr_t *addr,
obj_addr_t old,
obj_addr_t new_val)
{
unsigned long oldval;
__asm__ __volatile__("mov ar.ccv=%4 ;; cmpxchg8.rel %0=%1,%2,ar.ccv"
: "=r"(oldval), "=m"(*addr)
: "r"(new_val), "1"(*addr), "r"(old) : "memory");
return (oldval == old);
}
#endif