73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __ASM_SH_BITOPS_H
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#define __ASM_SH_BITOPS_H
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#ifndef _LINUX_BITOPS_H
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#error only <linux/bitops.h> can be included directly
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#endif
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/* For __swab32 */
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#include <asm/byteorder.h>
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#include <asm/barrier.h>
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#ifdef CONFIG_GUSA_RB
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#include <asm/bitops-grb.h>
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#elif defined(CONFIG_CPU_SH2A)
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#include <asm-generic/bitops/atomic.h>
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#include <asm/bitops-op32.h>
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#elif defined(CONFIG_CPU_SH4A)
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#include <asm/bitops-llsc.h>
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#elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
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#include <asm/bitops-cas.h>
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#else
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#include <asm-generic/bitops/atomic.h>
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#include <asm-generic/bitops/non-atomic.h>
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#endif
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static inline unsigned long ffz(unsigned long word)
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{
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unsigned long result;
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__asm__("1:\n\t"
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"shlr %1\n\t"
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"bt/s 1b\n\t"
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" add #1, %0"
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: "=r" (result), "=r" (word)
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: "0" (~0L), "1" (word)
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: "t");
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return result;
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}
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/**
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* __ffs - find first bit in word.
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* @word: The word to search
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*
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* Undefined if no bit exists, so code should check against 0 first.
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*/
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static inline unsigned long __ffs(unsigned long word)
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{
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unsigned long result;
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__asm__("1:\n\t"
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"shlr %1\n\t"
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"bf/s 1b\n\t"
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" add #1, %0"
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: "=r" (result), "=r" (word)
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: "0" (~0L), "1" (word)
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: "t");
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return result;
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}
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#include <asm-generic/bitops/ffs.h>
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#include <asm-generic/bitops/hweight.h>
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#include <asm-generic/bitops/lock.h>
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#include <asm-generic/bitops/sched.h>
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#include <asm-generic/bitops/ext2-atomic.h>
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#include <asm-generic/bitops/fls.h>
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#include <asm-generic/bitops/__fls.h>
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#include <asm-generic/bitops/fls64.h>
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#include <asm-generic/bitops/le.h>
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#endif /* __ASM_SH_BITOPS_H */
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