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Diffstat (limited to 'arch/unicore32/include/asm/bitops.h')
| -rw-r--r-- | arch/unicore32/include/asm/bitops.h | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/arch/unicore32/include/asm/bitops.h b/arch/unicore32/include/asm/bitops.h deleted file mode 100644 index deeb2163f35e..000000000000 --- a/arch/unicore32/include/asm/bitops.h +++ /dev/null @@ -1,46 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * linux/arch/unicore32/include/asm/bitops.h - * - * Code specific to PKUnity SoC and UniCore ISA - * - * Copyright (C) 2001-2010 GUAN Xue-tao - */ - -#ifndef __UNICORE_BITOPS_H__ -#define __UNICORE_BITOPS_H__ - -#define _ASM_GENERIC_BITOPS_FLS_H_ -#define _ASM_GENERIC_BITOPS___FLS_H_ -#define _ASM_GENERIC_BITOPS_FFS_H_ -#define _ASM_GENERIC_BITOPS___FFS_H_ -/* - * On UNICORE, those functions can be implemented around - * the cntlz instruction for much better code efficiency. - */ - -static inline int fls(unsigned int x) -{ - int ret; - - asm("cntlz\t%0, %1" : "=r" (ret) : "r" (x) : "cc"); - ret = 32 - ret; - - return ret; -} - -#define __fls(x) (fls(x) - 1) -#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); }) -#define __ffs(x) (ffs(x) - 1) - -#include <asm-generic/bitops.h> - -/* following definitions: to avoid using codes in lib/find_*.c */ -#define find_next_bit find_next_bit -#define find_next_zero_bit find_next_zero_bit -#define find_first_bit find_first_bit -#define find_first_zero_bit find_first_zero_bit - -#include <asm-generic/bitops/find.h> - -#endif /* __UNICORE_BITOPS_H__ */ |