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linux
linux-davinci
Commits
16b529d1
Commit
16b529d1
authored
Nov 20, 2008
by
Paul Mundt
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sh: Convert to generic bitops for IRQ-toggling implementation.
Signed-off-by:
Paul Mundt
<
lethal@linux-sh.org
>
parent
709420dd
Changes
4
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4 changed files
with
7 additions
and
95 deletions
+7
-95
arch/sh/include/asm/bitops-grb.h
arch/sh/include/asm/bitops-grb.h
+3
-0
arch/sh/include/asm/bitops-irq.h
arch/sh/include/asm/bitops-irq.h
+0
-91
arch/sh/include/asm/bitops-llsc.h
arch/sh/include/asm/bitops-llsc.h
+2
-0
arch/sh/include/asm/bitops.h
arch/sh/include/asm/bitops.h
+2
-4
No files found.
arch/sh/include/asm/bitops-grb.h
View file @
16b529d1
...
...
@@ -166,4 +166,7 @@ static inline int test_and_change_bit(int nr, volatile void * addr)
return
retval
;
}
#include <asm-generic/bitops/non-atomic.h>
#endif
/* __ASM_SH_BITOPS_GRB_H */
arch/sh/include/asm/bitops-irq.h
deleted
100644 → 0
View file @
709420dd
#ifndef __ASM_SH_BITOPS_IRQ_H
#define __ASM_SH_BITOPS_IRQ_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
);
}
static
inline
void
clear_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
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
;
}
#endif
/* __ASM_SH_BITOPS_IRQ_H */
arch/sh/include/asm/bitops-llsc.h
View file @
16b529d1
...
...
@@ -141,4 +141,6 @@ static inline int test_and_change_bit(int nr, volatile void * addr)
return
retval
!=
0
;
}
#include <asm-generic/bitops/non-atomic.h>
#endif
/* __ASM_SH_BITOPS_LLSC_H */
arch/sh/include/asm/bitops.h
View file @
16b529d1
...
...
@@ -16,18 +16,16 @@
#elif defined(CONFIG_CPU_SH4A)
#include <asm/bitops-llsc.h>
#else
#include <asm/bitops-irq.h>
#include <asm-generic/bitops/atomic.h>
#include <asm-generic/bitops/non-atomic.h>
#endif
/*
* clear_bit() doesn't provide any barrier for the compiler.
*/
#define smp_mb__before_clear_bit() barrier()
#define smp_mb__after_clear_bit() barrier()
#include <asm-generic/bitops/non-atomic.h>
#ifdef CONFIG_SUPERH32
static
inline
unsigned
long
ffz
(
unsigned
long
word
)
{
...
...
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