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73 lines
1.6 KiB
73 lines
1.6 KiB
/* 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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#include <asm-generic/bitops/find.h> |
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#endif /* __ASM_SH_BITOPS_H */
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