/* SPDX-License-Identifier: GPL-2.0 */
/*
* bitops . h : Bit string operations on the Sparc .
*
* Copyright 1995 David S . Miller ( davem @ caip . rutgers . edu )
* Copyright 1996 Eddie C . Dost ( ecd @ skynet . be )
* Copyright 2001 Anton Blanchard ( anton @ samba . org )
*/
#ifndef _SPARC_BITOPS_H
#define _SPARC_BITOPS_H
#include <linux/compiler.h>
#include <asm /byteorder.h>
#ifdef __KERNEL__
#ifndef _LINUX_BITOPS_H
#error only <linux/bitops.h> can be included directly
#endif
unsigned long sp32___set_bit(unsigned long *addr, unsigned long mask);
unsigned long sp32___clear_bit(unsigned long *addr, unsigned long mask);
unsigned long sp32___change_bit(unsigned long *addr, unsigned long mask);
/*
* Set bit ' nr ' in 32 - bit quantity at address ' addr ' where bit ' 0 '
* is in the highest of the four bytes and bit ' 31 ' is the high bit
* within the first byte . Sparc is BIG - Endian . Unless noted otherwise
* all bit - ops return 0 if bit was previously clear and ! = 0 otherwise .
*/
static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
return sp32___set_bit(ADDR, mask) != 0 ;
}
static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
(void ) sp32___set_bit(ADDR, mask);
}
static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
return sp32___clear_bit(ADDR, mask) != 0 ;
}
static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
(void ) sp32___clear_bit(ADDR, mask);
}
static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
return sp32___change_bit(ADDR, mask) != 0 ;
}
static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
{
unsigned long *ADDR, mask;
ADDR = ((unsigned long *) addr) + (nr >> 5 );
mask = 1 << (nr & 31 );
(void ) sp32___change_bit(ADDR, mask);
}
#include <asm -generic/bitops/non-atomic.h>
#include <asm -generic/bitops/ffz.h>
#include <asm -generic/bitops/__ffs.h>
#include <asm -generic/bitops/sched.h>
#include <asm -generic/bitops/ffs.h>
#include <asm -generic/bitops/fls.h>
#include <asm -generic/bitops/__fls.h>
#include <asm -generic/bitops/fls64.h>
#include <asm -generic/bitops/hweight.h>
#include <asm -generic/bitops/lock.h>
#include <asm -generic/bitops/le.h>
#include <asm -generic/bitops/ext2-atomic.h>
#endif /* __KERNEL__ */
#endif /* defined(_SPARC_BITOPS_H) */
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