| 217 |
|
// spin locks |
| 218 |
|
#ifdef __GNUC__ |
| 219 |
|
|
| 220 |
< |
#ifdef __powerpc__ |
| 220 |
> |
#if defined(__powerpc__) || defined(__ppc__) |
| 221 |
|
#define HAVE_TEST_AND_SET 1 |
| 222 |
|
static inline int testandset(volatile int *p) |
| 223 |
|
{ |
| 224 |
|
int ret; |
| 225 |
< |
__asm__ __volatile__("0: lwarx %0,0,%1 ;" |
| 226 |
< |
" xor. %0,%3,%0;" |
| 227 |
< |
" bne 1f;" |
| 228 |
< |
" stwcx. %2,0,%1;" |
| 229 |
< |
" bne- 0b;" |
| 225 |
> |
__asm__ __volatile__("0: lwarx %0,0,%1\n" |
| 226 |
> |
" xor. %0,%3,%0\n" |
| 227 |
> |
" bne 1f\n" |
| 228 |
> |
" stwcx. %2,0,%1\n" |
| 229 |
> |
" bne- 0b\n" |
| 230 |
|
"1: " |
| 231 |
|
: "=&r" (ret) |
| 232 |
|
: "r" (p), "r" (1), "r" (0) |
