android_kernel_xiaomi_sm8350/include/asm-sh64/bitops.h
Akinobu Mita 62f1b2465b [PATCH] bitops: sh64: use generic bitops
- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove __ffs()
- remove find_{next,first}{,_zero}_bit()
- remove generic_hweight{32,16,8}()
- remove sched_find_first_bit()
- remove generic_ffs()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()

Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Richard Curnow <rc@rc0.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:57:14 -08:00

150 lines
3.3 KiB
C

#ifndef __ASM_SH64_BITOPS_H
#define __ASM_SH64_BITOPS_H
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* include/asm-sh64/bitops.h
*
* Copyright (C) 2000, 2001 Paolo Alberelli
* Copyright (C) 2003 Paul Mundt
*/
#ifdef __KERNEL__
#include <linux/compiler.h>
#include <asm/system.h>
/* For __swab32 */
#include <asm/byteorder.h>
static __inline__ void set_bit(int nr, volatile void * addr)
{
int mask;
volatile unsigned int *a = addr;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
*a |= mask;
local_irq_restore(flags);
}
/*
* clear_bit() doesn't provide any barrier for the compiler.
*/
#define smp_mb__before_clear_bit() barrier()
#define smp_mb__after_clear_bit() barrier()
static inline void clear_bit(int nr, volatile unsigned long *a)
{
int mask;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
*a &= ~mask;
local_irq_restore(flags);
}
static __inline__ void change_bit(int nr, volatile void * addr)
{
int mask;
volatile unsigned int *a = addr;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
*a ^= mask;
local_irq_restore(flags);
}
static __inline__ int test_and_set_bit(int nr, volatile void * addr)
{
int mask, retval;
volatile unsigned int *a = addr;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
retval = (mask & *a) != 0;
*a |= mask;
local_irq_restore(flags);
return retval;
}
static __inline__ int test_and_clear_bit(int nr, volatile void * addr)
{
int mask, retval;
volatile unsigned int *a = addr;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
retval = (mask & *a) != 0;
*a &= ~mask;
local_irq_restore(flags);
return retval;
}
static __inline__ int test_and_change_bit(int nr, volatile void * addr)
{
int mask, retval;
volatile unsigned int *a = addr;
unsigned long flags;
a += nr >> 5;
mask = 1 << (nr & 0x1f);
local_irq_save(flags);
retval = (mask & *a) != 0;
*a ^= mask;
local_irq_restore(flags);
return retval;
}
#include <asm-generic/bitops/non-atomic.h>
static __inline__ unsigned long ffz(unsigned long word)
{
unsigned long result, __d2, __d3;
__asm__("gettr tr0, %2\n\t"
"pta $+32, tr0\n\t"
"andi %1, 1, %3\n\t"
"beq %3, r63, tr0\n\t"
"pta $+4, tr0\n"
"0:\n\t"
"shlri.l %1, 1, %1\n\t"
"addi %0, 1, %0\n\t"
"andi %1, 1, %3\n\t"
"beqi %3, 1, tr0\n"
"1:\n\t"
"ptabs %2, tr0\n\t"
: "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3)
: "0" (0L), "1" (word));
return result;
}
#include <asm-generic/bitops/__ffs.h>
#include <asm-generic/bitops/find.h>
#include <asm-generic/bitops/hweight.h>
#include <asm-generic/bitops/sched.h>
#include <asm-generic/bitops/ffs.h>
#include <asm-generic/bitops/ext2-non-atomic.h>
#include <asm-generic/bitops/ext2-atomic.h>
#include <asm-generic/bitops/minix.h>
#include <asm-generic/bitops/fls.h>
#include <asm-generic/bitops/fls64.h>
#endif /* __KERNEL__ */
#endif /* __ASM_SH64_BITOPS_H */