#define write_barrier() __asm__ __volatile__ ("sync" : : : "memory")
+#ifdef __powerpc64__
+#define PPC_CNTLZL "cntlzd"
+#else
+#define PPC_CNTLZL "cntlzw"
+#endif
+
static inline int __ilog2(unsigned long bitmask)
{
int lz;
- asm ("cntlzw %0,%1" : "=r" (lz) : "r" (bitmask));
- return 31 - lz;
+ asm (PPC_CNTLZL " %0,%1" : "=r" (lz) : "r" (bitmask));
+ return BITS_PER_LONG - 1 - lz;
}
static inline int arch_ffz(unsigned long bitmask)
{
if ((bitmask = ~bitmask) == 0)
- return 32;
+ return BITS_PER_LONG;
return __ilog2(bitmask & -bitmask);
}
return ret;
}
+#if 0
static void atb_child(void)
{
arch_flags |= ARCH_FLAG_1;
arch_flags |= ARCH_FLAG_1;
}
}
+#endif
#define ARCH_HAVE_INIT
extern int tsc_reliable;
static inline int arch_init(char *envp[])
{
+#if 0
tsc_reliable = 1;
atb_clocktest();
+#endif
return 0;
}