atomic_arch.h raw

   1  #define a_cas a_cas
   2  static inline int a_cas(volatile int *p, int t, int s)
   3  {
   4  	__asm__ __volatile__ (
   5  		"cs %0, %2, %1"
   6  		: "+d"(t), "+Q"(*p) : "d"(s) : "memory", "cc");
   7  	return t;
   8  }
   9  
  10  #define a_cas_p a_cas_p
  11  static inline void *a_cas_p(volatile void *p, void *t, void *s)
  12  {
  13  	__asm__ __volatile__ (
  14  		"csg %0, %2, %1"
  15  		: "+d"(t), "+Q"(*(void *volatile *)p) : "d"(s)
  16  		: "memory", "cc");
  17  	return t;
  18  }
  19  
  20  #define a_barrier a_barrier
  21  static inline void a_barrier()
  22  {
  23  	__asm__ __volatile__ ("bcr 15,0" : : : "memory");
  24  }
  25  
  26  #define a_crash a_crash
  27  static inline void a_crash()
  28  {
  29  	__asm__ __volatile__ (".insn e,0");
  30  }
  31