arch/loongarch64/atomic_arch.h

#define a_ll a_ll
static inline int a_ll(volatile int *p)
{
	int v;
	__asm__ __volatile__ (
		"ll.w %0, %1"
		: "=r"(v)
		: "ZC"(*p));
	return v;
}

#define a_sc a_sc
static inline int a_sc(volatile int *p, int v)
{
	int r;
	__asm__ __volatile__ (
		"sc.w %0, %1"
		: "=r"(r), "=ZC"(*p)
		: "0"(v) : "memory");
	return r;
}

#define a_ll_p a_ll_p
static inline void *a_ll_p(volatile void *p)
{
	void *v;
	__asm__ __volatile__ (
		"ll.d %0, %1"
		: "=r"(v)
		: "ZC"(*(void *volatile *)p));
	return v;
}

#define a_sc_p a_sc_p
static inline int a_sc_p(volatile void *p, void *v)
{
	long r;
	__asm__ __volatile__ (
		"sc.d %0, %1"
		: "=r"(r), "=ZC"(*(void *volatile *)p)
		: "0"(v)
		: "memory");
	return r;
}

#define a_barrier a_barrier
static inline void a_barrier()
{
	__asm__ __volatile__ ("dbar 0" : : : "memory");
}

#define a_pre_llsc  a_barrier
#define a_post_llsc a_barrier