blob: 86360d04823bccc86df17a53f6dfcb343e4c9dcb [file] [log] [blame]
#ifndef __BACKPORT_BITOPS_H
#define __BACKPORT_BITOPS_H
#include_next <linux/bitops.h>
#include <linux/version.h>
#include <generated/utsrelease.h>
#ifndef GENMASK
/*
* Create a contiguous bitmask starting at bit position @l and ending at
* position @h. For example
* GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
*/
#define GENMASK(h, l) (((U32_C(1) << ((h) - (l) + 1)) - 1) << (l))
#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
#endif
#ifndef BIT_ULL
#define BIT_ULL(nr) (1ULL << (nr))
#endif
#endif /* __BACKPORT_BITOPS_H */