diff options
author | Dominik Sliwa <dominik.sliwa@toradex.com> | 2017-11-21 12:59:41 +0000 |
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committer | Dominik Sliwa <dominik.sliwa@toradex.com> | 2017-12-22 09:40:23 +0000 |
commit | e34cb44ac7c08783b98a16eec70125e205e6eb12 (patch) | |
tree | 1101d23f1a73e5627ae187b07c7a0cf8826e10d1 /backport-include/linux/bitops.h |
initial commit
Generated againts 4.14 kernel source with
git backports 1d8cc151d365582b42be00af776270b834a7a37d
Diffstat (limited to 'backport-include/linux/bitops.h')
-rw-r--r-- | backport-include/linux/bitops.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/backport-include/linux/bitops.h b/backport-include/linux/bitops.h new file mode 100644 index 0000000..86360d0 --- /dev/null +++ b/backport-include/linux/bitops.h @@ -0,0 +1,23 @@ +#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 */ |