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Commit bfd1ff63 authored by Srinivas Pandruvada's avatar Srinivas Pandruvada Committed by Rafael J. Wysocki
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bitops: Introduce BIT_ULL 



Adding BIT(x) equivalent for unsigned long long type, BIT_ULL(x). Also
added BIT_ULL_MASK and BIT_ULL_WORD.

Suggested-by: default avatarJoe Perches <joe@perches.com>
Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: default avatarJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 1a6b991a

include/linux/bitops.h

+3 −0
Original line number Diff line number Diff line
@@ -4,8 +4,11 @@ 


#ifdef	__KERNEL__

#define BIT(nr)			(1UL << (nr))

#define BIT_ULL(nr)		(1ULL << (nr))

#define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))

#define BIT_WORD(nr)		((nr) / BITS_PER_LONG)

#define BIT_ULL_MASK(nr)	(1ULL << ((nr) % BITS_PER_LONG_LONG))

#define BIT_ULL_WORD(nr)	((nr) / BITS_PER_LONG_LONG)

#define BITS_PER_BYTE		8

#define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))

#endif