mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 14:26:42 +07:00
8a8b836b91
Recent workqueue changes basically make this a formal requirement. Also, move atomic32.o from lib-y to obj-y since it exports symbols to modules. Signed-off-by: David S. Miller <davem@davemloft.net>
107 lines
2.8 KiB
C
107 lines
2.8 KiB
C
/* $Id: bitops.h,v 1.67 2001/11/19 18:36:34 davem Exp $
|
|
* 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__
|
|
|
|
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>
|
|
#include <asm-generic/bitops/fls64.h>
|
|
#include <asm-generic/bitops/hweight.h>
|
|
#include <asm-generic/bitops/find.h>
|
|
#include <asm-generic/bitops/ext2-non-atomic.h>
|
|
#include <asm-generic/bitops/ext2-atomic.h>
|
|
#include <asm-generic/bitops/minix.h>
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* defined(_SPARC_BITOPS_H) */
|