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 7ab0c7fb2SPaolo Bonzini #define __GENMASK(h, l) \ 8ab0c7fb2SPaolo Bonzini (((~_UL(0)) - (_UL(1) << (l)) + 1) & \ 9ab0c7fb2SPaolo Bonzini (~_UL(0) >> (__BITS_PER_LONG - 1 - (h)))) 10ab0c7fb2SPaolo Bonzini 11ab0c7fb2SPaolo Bonzini #define __GENMASK_ULL(h, l) \ 12ab0c7fb2SPaolo Bonzini (((~_ULL(0)) - (_ULL(1) << (l)) + 1) & \ 13ab0c7fb2SPaolo Bonzini (~_ULL(0) >> (__BITS_PER_LONG_LONG - 1 - (h)))) 14ab0c7fb2SPaolo Bonzini 15*0d2eeef7SBibo Mao #define __GENMASK_U128(h, l) \ 16*0d2eeef7SBibo Mao ((_BIT128((h)) << 1) - (_BIT128(l))) 17*0d2eeef7SBibo Mao 18ab0c7fb2SPaolo Bonzini #endif /* _LINUX_BITS_H */ 19