diff options
Diffstat (limited to 'arch/powerpc/include/asm/delay.h')
| -rw-r--r-- | arch/powerpc/include/asm/delay.h | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/delay.h b/arch/powerpc/include/asm/delay.h index 52e4d54da2a9..3df4417dd9c8 100644 --- a/arch/powerpc/include/asm/delay.h +++ b/arch/powerpc/include/asm/delay.h @@ -2,6 +2,7 @@ #define _ASM_POWERPC_DELAY_H #ifdef __KERNEL__ +#include <linux/processor.h> #include <asm/time.h> /* @@ -58,11 +59,18 @@ extern void udelay(unsigned long usecs); typeof(condition) __ret; \ unsigned long __loops = tb_ticks_per_usec * timeout; \ unsigned long __start = get_tbl(); \ - while (!(__ret = (condition)) && (tb_ticks_since(__start) <= __loops)) \ - if (delay) \ + \ + if (delay) { \ + while (!(__ret = (condition)) && \ + (tb_ticks_since(__start) <= __loops)) \ udelay(delay); \ - else \ - cpu_relax(); \ + } else { \ + spin_begin(); \ + while (!(__ret = (condition)) && \ + (tb_ticks_since(__start) <= __loops)) \ + spin_cpu_relax(); \ + spin_end(); \ + } \ if (!__ret) \ __ret = (condition); \ __ret; \ |