1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __ASM_SH_BITOPS_H
3#define __ASM_SH_BITOPS_H
4
5#ifndef _LINUX_BITOPS_H
6#error only <linux/bitops.h> can be included directly
7#endif
8
9/* For __swab32 */
10#include <asm/byteorder.h>
11#include <asm/barrier.h>
12
13#ifdef CONFIG_GUSA_RB
14#include <asm/bitops-grb.h>
15#elif defined(CONFIG_CPU_SH2A)
16#include <asm-generic/bitops/atomic.h>
17#include <asm/bitops-op32.h>
18#elif defined(CONFIG_CPU_SH4A)
19#include <asm/bitops-llsc.h>
20#elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
21#include <asm/bitops-cas.h>
22#else
23#include <asm-generic/bitops/atomic.h>
24#include <asm-generic/bitops/non-atomic.h>
25#endif
26
27static inline unsigned long ffz(unsigned long word)
28{
29	unsigned long result;
30
31	__asm__("1:\n\t"
32		"shlr	%1\n\t"
33		"bt/s	1b\n\t"
34		" add	#1, %0"
35		: "=r" (result), "=r" (word)
36		: "0" (~0L), "1" (word)
37		: "t");
38	return result;
39}
40
41/**
42 * __ffs - find first bit in word.
43 * @word: The word to search
44 *
45 * Undefined if no bit exists, so code should check against 0 first.
46 */
47static inline unsigned long __ffs(unsigned long word)
48{
49	unsigned long result;
50
51	__asm__("1:\n\t"
52		"shlr	%1\n\t"
53		"bf/s	1b\n\t"
54		" add	#1, %0"
55		: "=r" (result), "=r" (word)
56		: "0" (~0L), "1" (word)
57		: "t");
58	return result;
59}
60
61#include <asm-generic/bitops/ffs.h>
62#include <asm-generic/bitops/hweight.h>
63#include <asm-generic/bitops/lock.h>
64#include <asm-generic/bitops/sched.h>
65#include <asm-generic/bitops/ext2-atomic.h>
66#include <asm-generic/bitops/fls.h>
67#include <asm-generic/bitops/__fls.h>
68#include <asm-generic/bitops/fls64.h>
69
70#include <asm-generic/bitops/le.h>
71
72#endif /* __ASM_SH_BITOPS_H */
73