提交 3821af2f 编写于 作者: S Stephen Hemminger 提交者: David S. Miller

[FLS64]: generic version

Signed-off-by: NStephen Hemminger <shemminger@osdl.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 c865e5d9
......@@ -321,6 +321,7 @@ static inline int fls(int word)
#else
#define fls generic_fls
#endif
#define fls64 generic_fls64
/* Compute powers of two for the given integer. */
static inline long floor_log2(unsigned long word)
......
......@@ -332,6 +332,7 @@ static inline unsigned long __ffs(unsigned long word)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
/*
* ffs: find first bit set. This is defined the same way as
......@@ -351,6 +352,7 @@ static inline unsigned long __ffs(unsigned long word)
#define fls(x) \
( __builtin_constant_p(x) ? generic_fls(x) : \
({ int __r; asm("clz\t%0, %1" : "=r"(__r) : "r"(x) : "cc"); 32-__r; }) )
#define fls64(x) generic_fls64(x)
#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
#define __ffs(x) (ffs(x) - 1)
#define ffz(x) __ffs( ~(x) )
......
......@@ -259,6 +259,7 @@ static inline unsigned long __ffs(unsigned long word)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
/*
* ffs: find first bit set. This is defined the same way as
......
......@@ -240,6 +240,7 @@ static inline int test_bit(int nr, const volatile unsigned long *addr)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
/*
* hweightN - returns the hamming weight of a N-bit word
......
......@@ -228,6 +228,7 @@ static inline int find_next_zero_bit(const void *addr, int size, int offset)
\
bit ? 33 - bit : bit; \
})
#define fls64(x) generic_fls64(x)
/*
* Every architecture must define this function. It's the fastest
......
......@@ -56,6 +56,7 @@ extern __inline__ int test_bit(int nr, const unsigned long * addr)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#ifdef __KERNEL__
......
......@@ -406,5 +406,6 @@ static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned lon
#endif /* __KERNEL__ */
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#endif /* _H8300_BITOPS_H */
......@@ -372,6 +372,7 @@ static inline unsigned long ffz(unsigned long word)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#ifdef __KERNEL__
......
......@@ -345,6 +345,7 @@ fls (int t)
x |= x >> 16;
return ia64_popcnt(x);
}
#define fls64(x) generic_fls64(x)
/*
* ffs: find first bit set. This is defined the same way as the libc and compiler builtin
......
......@@ -465,6 +465,7 @@ static __inline__ unsigned long __ffs(unsigned long word)
* fls: find last bit set.
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#ifdef __KERNEL__
......
......@@ -310,6 +310,7 @@ static inline int fls(int x)
return 32 - cnt;
}
#define fls64(x) generic_fls64(x)
/*
* Every architecture must define this function. It's the fastest
......
......@@ -499,5 +499,6 @@ static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned lon
* fls: find last bit set.
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#endif /* _M68KNOMMU_BITOPS_H */
......@@ -695,7 +695,7 @@ static inline unsigned long fls(unsigned long word)
return flz(~word) + 1;
}
#define fls64(x) generic_fls64(x)
/*
* find_next_zero_bit - find the first zero bit in a memory region
......
......@@ -263,6 +263,7 @@ static __inline__ int fls(int x)
return ret;
}
#define fls64(x) generic_fls64(x)
/*
* hweightN: returns the hamming weight (i.e. the number
......
......@@ -310,6 +310,7 @@ static __inline__ int fls(unsigned int x)
asm ("cntlzw %0,%1" : "=r" (lz) : "r" (x));
return 32 - lz;
}
#define fls64(x) generic_fls64(x)
/*
* hweightN: returns the hamming weight (i.e. the number
......
......@@ -839,6 +839,7 @@ static inline int sched_find_first_bit(unsigned long *b)
* fls: find last bit set.
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
/*
* hweightN: returns the hamming weight (i.e. the number
......
......@@ -470,6 +470,7 @@ static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned lon
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#endif /* __KERNEL__ */
......
......@@ -510,6 +510,7 @@ static __inline__ unsigned long ext2_find_next_zero_bit(void *addr, unsigned lon
#define ffs(x) generic_ffs(x)
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#endif /* __KERNEL__ */
......
......@@ -298,6 +298,7 @@ static inline int ffs(int x)
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
/*
* hweightN: returns the hamming weight (i.e. the number
......
......@@ -119,6 +119,7 @@ static inline unsigned long __ffs(unsigned long word)
*/
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#ifdef __KERNEL__
......
......@@ -276,6 +276,7 @@ static __inline__ unsigned long find_next_bit(const unsigned long *addr,
#define ffs(x) generic_ffs (x)
#define fls(x) generic_fls (x)
#define fls64(x) generic_fls64(x)
#define __ffs(x) ffs(x)
......
......@@ -409,6 +409,7 @@ static __inline__ int ffs(int x)
/* find last set bit */
#define fls(x) generic_fls(x)
#define fls64(x) generic_fls64(x)
#endif /* __KERNEL__ */
......
......@@ -245,6 +245,7 @@ static __inline__ int fls (unsigned int x)
{
return __cntlz(x);
}
#define fls64(x) generic_fls64(x)
static __inline__ int
find_next_bit(const unsigned long *addr, int size, int offset)
......
......@@ -76,6 +76,15 @@ static __inline__ int generic_fls(int x)
*/
#include <asm/bitops.h>
static inline int generic_fls64(__u64 x)
{
__u32 h = x >> 32;
if (h)
return fls(x) + 32;
return fls(x);
}
static __inline__ int get_bitmask_order(unsigned int count)
{
int order;
......
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