2008-07-17 21:55:51 -07:00
|
|
|
/*
|
|
|
|
* 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
|
|
|
|
|
|
|
|
extern unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
|
|
|
|
extern unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
|
|
|
|
extern unsigned long ___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 ___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) ___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 ___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) ___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 ___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) ___change_bit(ADDR, mask);
|
|
|
|
}
|
|
|
|
|
|
|
|
#include <asm-generic/bitops/non-atomic.h>
|
|
|
|
|
|
|
|
#define smp_mb__before_clear_bit() do { } while(0)
|
|
|
|
#define smp_mb__after_clear_bit() do { } while(0)
|
|
|
|
|
|
|
|
#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>
|
2008-12-03 17:04:52 -07:00
|
|
|
#include <asm-generic/bitops/__fls.h>
|
2008-07-17 21:55:51 -07:00
|
|
|
#include <asm-generic/bitops/fls64.h>
|
|
|
|
#include <asm-generic/bitops/hweight.h>
|
|
|
|
#include <asm-generic/bitops/lock.h>
|
|
|
|
#include <asm-generic/bitops/find.h>
|
bitops: introduce little-endian bitops for most architectures
Introduce little-endian bit operations to the big-endian architectures
which do not have native little-endian bit operations and the
little-endian architectures. (alpha, avr32, blackfin, cris, frv, h8300,
ia64, m32r, mips, mn10300, parisc, sh, sparc, tile, x86, xtensa)
These architectures can just include generic implementation
(asm-generic/bitops/le.h).
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Mikael Starvik <starvik@axis.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Zankel <chris@zankel.net>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-23 16:42:02 -07:00
|
|
|
#include <asm-generic/bitops/le.h>
|
2008-07-17 21:55:51 -07:00
|
|
|
#include <asm-generic/bitops/ext2-atomic.h>
|
|
|
|
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
|
|
|
|
#endif /* defined(_SPARC_BITOPS_H) */
|