diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/bits/atomic.h')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/bits/atomic.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/bits/atomic.h b/sysdeps/powerpc/powerpc64/bits/atomic.h index fa25678410..e46dc1e4d7 100644 --- a/sysdeps/powerpc/powerpc64/bits/atomic.h +++ b/sysdeps/powerpc/powerpc64/bits/atomic.h @@ -168,6 +168,32 @@ __val; \ }) +# define __arch_atomic_increment_val_64(mem) \ + ({ \ + __typeof (*(mem)) __val; \ + __asm __volatile ("1: ldarx %0,0,%2\n" \ + " addi %0,%0,1\n" \ + " stdcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (__val), "=m" (*mem) \ + : "b" (mem), "m" (*mem) \ + : "cr0", "memory"); \ + __val; \ + }) + +# define __arch_atomic_decrement_val_64(mem) \ + ({ \ + __typeof (*(mem)) __val; \ + __asm __volatile ("1: ldarx %0,0,%2\n" \ + " subi %0,%0,1\n" \ + " stdcx. %0,0,%2\n" \ + " bne- 1b" \ + : "=&b" (__val), "=m" (*mem) \ + : "b" (mem), "m" (*mem) \ + : "cr0", "memory"); \ + __val; \ + }) + # define __arch_atomic_decrement_if_positive_64(mem) \ ({ int __val, __tmp; \ __asm __volatile ("1: ldarx %0,0,%3\n" \ |