Contributors: 14
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Rikard Falkeborn |
37 |
28.68% |
2 |
13.33% |
| Chen Gong |
27 |
20.93% |
1 |
6.67% |
| Srinivas Pandruvada |
13 |
10.08% |
1 |
6.67% |
| Will Deacon |
12 |
9.30% |
1 |
6.67% |
| Jiri Slaby |
11 |
8.53% |
1 |
6.67% |
| Anshuman Khandual |
7 |
5.43% |
1 |
6.67% |
| Masahiro Yamada |
5 |
3.88% |
1 |
6.67% |
| Akinobu Mita |
4 |
3.10% |
1 |
6.67% |
| Maxime Coquelin |
4 |
3.10% |
1 |
6.67% |
| Paolo Bonzini |
3 |
2.33% |
1 |
6.67% |
| Linus Torvalds (pre-git) |
2 |
1.55% |
1 |
6.67% |
| Eric Dumazet |
2 |
1.55% |
1 |
6.67% |
| Greg Kroah-Hartman |
1 |
0.78% |
1 |
6.67% |
| Vincenzo Frascino |
1 |
0.78% |
1 |
6.67% |
| Total |
129 |
|
15 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __LINUX_BITS_H
#define __LINUX_BITS_H
#include <linux/const.h>
#include <vdso/bits.h>
#include <uapi/linux/bits.h>
#include <asm/bitsperlong.h>
#define BIT_MASK(nr) (UL(1) << ((nr) % BITS_PER_LONG))
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
#define BIT_ULL_MASK(nr) (ULL(1) << ((nr) % BITS_PER_LONG_LONG))
#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
#define BITS_PER_BYTE 8
/*
* 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.
*/
#if !defined(__ASSEMBLY__)
#include <linux/build_bug.h>
#define GENMASK_INPUT_CHECK(h, l) \
(BUILD_BUG_ON_ZERO(__builtin_choose_expr( \
__is_constexpr((l) > (h)), (l) > (h), 0)))
#else
/*
* BUILD_BUG_ON_ZERO is not available in h files included from asm files,
* disable the input check if that is the case.
*/
#define GENMASK_INPUT_CHECK(h, l) 0
#endif
#define GENMASK(h, l) \
(GENMASK_INPUT_CHECK(h, l) + __GENMASK(h, l))
#define GENMASK_ULL(h, l) \
(GENMASK_INPUT_CHECK(h, l) + __GENMASK_ULL(h, l))
#if !defined(__ASSEMBLY__)
/*
* Missing asm support
*
* __GENMASK_U128() depends on _BIT128() which would not work
* in the asm code, as it shifts an 'unsigned __init128' data
* type instead of direct representation of 128 bit constants
* such as long and unsigned long. The fundamental problem is
* that a 128 bit constant will get silently truncated by the
* gcc compiler.
*/
#define GENMASK_U128(h, l) \
(GENMASK_INPUT_CHECK(h, l) + __GENMASK_U128(h, l))
#endif
#endif /* __LINUX_BITS_H */