Differential D26976 Diff 79613 sys/arm64/include/bitops.h

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sys/arm64/include/bitops.h

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				/*
				* Copyright (C) TODO
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				* 1. Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				* 2. Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in the
				* documentation and/or other materials provided with the distribution.
				*
				* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
				* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
				* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
				* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
				* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
				* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
				* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
				* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
				* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
				* SUCH DAMAGE.
				*/

				#ifndef _ARM_BITOPS_H_
				#define _ARM_BITOPS_H_

				#include <sys/bitstring.h>

				#define for_each_set_bit(bit, addr, size) \
				for (bit_ffs((bitstr_t )(addr), (size), (int )&(bit)); \
				(bit) != -1; \
				bit_ffs_at((bitstr_t )(addr), (bit) + 1, (size), (int )&(bit)))

				/* same as for_each_set_bit() but use bit as value to start with */
				#define for_each_set_bit_from(bit, addr, size) \
				for (bit_ffs_at((bitstr_t )(addr), (bit), (size), (int )&(bit)); \
				(bit) != -1; \
				bit_ffs_at((bitstr_t )(addr), (bit) + 1, (size), (int )&(bit)))

				#define for_each_clear_bit(bit, addr, size) \
				for (bit_ffc((bitstr_t )(addr), (size), (int )&(bit)); \
				(bit) != -1; \
				bit_ffc_at((bitstr_t )(addr), (bit) + 1, (size), (int )&(bit)))

				/* same as for_each_clear_bit() but use bit as value to start with */
				#define for_each_clear_bit_from(bit, addr, size) \
				for (bit_ffc_at((bitstr_t )(addr), (bit), (size), (int )&(bit)); \
				(bit) != -1; \
				bit_ffc_at((bitstr_t )(addr), (bit) + 1, (size), (int )&(bit)))

				#endif /* _ARM_BITOPS_H_ */