1ab0c7fb2SPaolo Bonzini /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2ab0c7fb2SPaolo Bonzini /* bits.h: Macros for dealing with bitmasks. */ 3ab0c7fb2SPaolo Bonzini 4ab0c7fb2SPaolo Bonzini #ifndef _LINUX_BITS_H 5ab0c7fb2SPaolo Bonzini #define _LINUX_BITS_H 6ab0c7fb2SPaolo Bonzini 7*1cab5a02SRorie Reyes #define __GENMASK(h, l) (((~_UL(0)) << (l)) & (~_UL(0) >> (BITS_PER_LONG - 1 - (h)))) 8ab0c7fb2SPaolo Bonzini 9*1cab5a02SRorie Reyes #define __GENMASK_ULL(h, l) (((~_ULL(0)) << (l)) & (~_ULL(0) >> (BITS_PER_LONG_LONG - 1 - (h)))) 10ab0c7fb2SPaolo Bonzini 110d2eeef7SBibo Mao #define __GENMASK_U128(h, l) \ 120d2eeef7SBibo Mao ((_BIT128((h)) << 1) - (_BIT128(l))) 130d2eeef7SBibo Mao 14ab0c7fb2SPaolo Bonzini #endif /* _LINUX_BITS_H */ 15