Contributors: 12
Author Tokens Token Proportion Commits Commit Proportion
Linus Torvalds (pre-git) 254 53.36% 13 46.43%
David S. Miller 92 19.33% 2 7.14%
Linus Torvalds 56 11.76% 2 7.14%
Akinobu Mita 30 6.30% 2 7.14%
Pete Zaitcev 13 2.73% 2 7.14%
Alexander Lobakin 9 1.89% 1 3.57%
Jiri Slaby 8 1.68% 1 3.57%
Sam Ravnborg 6 1.26% 1 3.57%
Nicholas Piggin 3 0.63% 1 3.57%
Rusty Russell 3 0.63% 1 3.57%
Adrian Bunk 1 0.21% 1 3.57%
Greg Kroah-Hartman 1 0.21% 1 3.57%
Total 476 28


/* 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) */