[FLS64]: x86_64 version (90933fc8) · Commits · e / devices / android_kernel_xiaomi_nabu

include/asm-x86_64/bitops.h

+27 −1

Original line number	Original line	Diff line number	Diff line
	@@ -340,6 +340,20 @@ static __inline__ unsigned long __ffs(unsigned long word)
	return word;		return word;
	}		}

			/*
			* __fls: find last bit set.
			* @word: The word to search
			*
			* Undefined if no zero exists, so code should check against ~0UL first.
			*/
			static __inline__ unsigned long __fls(unsigned long word)
			{
			__asm__("bsrq %1,%0"
			:"=r" (word)
			:"rm" (word));
			return word;
			}

	#ifdef __KERNEL__		#ifdef __KERNEL__

	static inline int sched_find_first_bit(const unsigned long *b)		static inline int sched_find_first_bit(const unsigned long *b)
	@@ -369,6 +383,19 @@ static __inline__ int ffs(int x)
	return r+1;		return r+1;
	}		}

			/**
			* fls64 - find last bit set in 64 bit word
			* @x: the word to search
			*
			* This is defined the same way as fls.
			*/
			static __inline__ int fls64(__u64 x)
			{
			if (x == 0)
			return 0;
			return __fls(x) + 1;
			}

	/**		/**
	* hweightN - returns the hamming weight of a N-bit word		* hweightN - returns the hamming weight of a N-bit word
	* @x: the word to weigh		* @x: the word to weigh
	@@ -409,7 +436,6 @@ static __inline__ int ffs(int x)

	/* find last set bit */		/* find last set bit */
	#define fls(x) generic_fls(x)		#define fls(x) generic_fls(x)
	#define fls64(x) generic_fls64(x)

	#endif /* __KERNEL__ */		#endif /* __KERNEL__ */