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/*
* Copyright (C) 2001 - 2012 Tensilica Inc.
* Copyright (C) 2014 - 2016 Cadence Design Systems Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _XTENSA_BITOPS_H
#define _XTENSA_BITOPS_H
#include <asm/system.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/__fls.h>
#include <asm-generic/bitops/fls64.h>
#include <asm-generic/bitops/__ffs.h>
static inline int test_bit(int nr, const void *addr)
{
return ((unsigned char *)addr)[nr >> 3] & (1u << (nr & 7));
}
static inline int test_and_set_bit(int nr, volatile void *addr)
{
unsigned long flags;
unsigned char tmp;
unsigned char mask = 1u << (nr & 7);
local_irq_save(flags);
tmp = ((unsigned char *)addr)[nr >> 3];
((unsigned char *)addr)[nr >> 3] |= mask;
local_irq_restore(flags);
return tmp & mask;
}
#endif /* _XTENSA_BITOPS_H */
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