#ifndef ARCH_PPC_H
#define ARCH_PPH_H
-#define ARCH (arch_ppc)
+#define FIO_ARCH (arch_ppc)
#ifndef __NR_ioprio_set
#define __NR_ioprio_set 273
return 32;
return __ilog2(bitmask & -bitmask);
}
-#define ARCH_HAVE_FFZ
-
-typedef struct {
- volatile unsigned int lock;
-} spinlock_t;
-static inline void spin_trylock(spinlock_t *lock)
+static inline unsigned long long get_cpu_clock(void)
{
- unsigned long tmp;
+ unsigned int tbl, tbu0, tbu1;
+ unsigned long long ret;
- __asm__ __volatile__(
- "1: lwarx %0,0,%2\n\
- cmpwi 0,%0,0\n\
- bne- 2f\n\
- stwcx. 1,0,%2\n\
- bne- 1b\n\
- isync\n\
- 2:" : "=&r" (tmp)
- : (&lock->lock)
- : "cr0", "memory");
-
- return tmp;
-}
+ do {
+ __asm__ __volatile__ ("mftbu %0" : "=r"(tbu0));
+ __asm__ __volatile__ ("mftb %0" : "=r"(tbl) );
+ __asm__ __volatile__ ("mftbu %0" : "=r"(tbu1));
+ } while (tbu0 != tbu1);
-static inline void spin_lock(spinlock_t *lock)
-{
- while (spin_trylock(lock))
- ;
+ ret = (((unsigned long long)tbu0) << 32) | tbl;
+ return ret;
}
-static inline void spin_unlock(spinlock_t *lock)
-{
- read_barrier();
- lock->lock = 0;
-}
+#define ARCH_HAVE_FFZ
+#define ARCH_HAVE_CPU_CLOCK
#endif