Release 4.14 arch/sh/include/asm/bitops.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_BITOPS_H
#define __ASM_SH_BITOPS_H
#ifdef __KERNEL__
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif
/* For __swab32 */
#include <asm/byteorder.h>
#include <asm/barrier.h>
#ifdef CONFIG_GUSA_RB
#include <asm/bitops-grb.h>
#elif defined(CONFIG_CPU_SH2A)
#include <asm-generic/bitops/atomic.h>
#include <asm/bitops-op32.h>
#elif defined(CONFIG_CPU_SH4A)
#include <asm/bitops-llsc.h>
#elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
#include <asm/bitops-cas.h>
#else
#include <asm-generic/bitops/atomic.h>
#include <asm-generic/bitops/non-atomic.h>
#endif
#ifdef CONFIG_SUPERH32
static inline unsigned long ffz(unsigned long word)
{
unsigned long result;
__asm__("1:\n\t"
"shlr %1\n\t"
"bt/s 1b\n\t"
" add #1, %0"
: "=r" (result), "=r" (word)
: "0" (~0L), "1" (word)
: "t");
return result;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Akinobu Mita | 10 | 50.00% | 1 | 33.33% |
| Linus Torvalds | 9 | 45.00% | 1 | 33.33% |
| Paul Mundt | 1 | 5.00% | 1 | 33.33% |
| Total | 20 | 100.00% | 3 | 100.00% |
/**
* __ffs - find first bit in word.
* @word: The word to search
*
* Undefined if no bit exists, so code should check against 0 first.
*/
static inline unsigned long __ffs(unsigned long word)
{
unsigned long result;
__asm__("1:\n\t"
"shlr %1\n\t"
"bf/s 1b\n\t"
" add #1, %0"
: "=r" (result), "=r" (word)
: "0" (~0L), "1" (word)
: "t");
return result;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 14 | 70.00% | 2 | 50.00% |
| Akinobu Mita | 5 | 25.00% | 1 | 25.00% |
| Paul Mundt | 1 | 5.00% | 1 | 25.00% |
| Total | 20 | 100.00% | 4 | 100.00% |
#else
static inline unsigned long ffz(unsigned long word)
{
unsigned long result, __d2, __d3;
__asm__("gettr tr0, %2\n\t"
"pta $+32, tr0\n\t"
"andi %1, 1, %3\n\t"
"beq %3, r63, tr0\n\t"
"pta $+4, tr0\n"
"0:\n\t"
"shlri.l %1, 1, %1\n\t"
"addi %0, 1, %0\n\t"
"andi %1, 1, %3\n\t"
"beqi %3, 1, tr0\n"
"1:\n\t"
"ptabs %2, tr0\n\t"
: "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3)
: "0" (0L), "1" (word));
return result;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Paul Mundt | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
#include <asm-generic/bitops/__ffs.h>
#endif
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/ffs.h>
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/lock.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/le.h>
#include <asm-generic/bitops/ext2-atomic.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#endif /* __KERNEL__ */
#endif /* __ASM_SH_BITOPS_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Paul Mundt | 61 | 32.62% | 5 | 29.41% |
| Akinobu Mita | 40 | 21.39% | 2 | 11.76% |
| Linus Torvalds (pre-git) | 33 | 17.65% | 2 | 11.76% |
| Rich Felker | 14 | 7.49% | 1 | 5.88% |
| Stuart Menefy | 12 | 6.42% | 1 | 5.88% |
| Linus Torvalds | 9 | 4.81% | 1 | 5.88% |
| Jiri Slaby | 8 | 4.28% | 1 | 5.88% |
| Peter Zijlstra | 3 | 1.60% | 1 | 5.88% |
| Nicholas Piggin | 3 | 1.60% | 1 | 5.88% |
| Alexander van Heukelum | 3 | 1.60% | 1 | 5.88% |
| Greg Kroah-Hartman | 1 | 0.53% | 1 | 5.88% |
| Total | 187 | 100.00% | 17 | 100.00% |
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