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nexedi
linux
Commits
295b4cb6
Commit
295b4cb6
authored
Jun 08, 2004
by
David S. Miller
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[SPARC64]: Uninline find_*_bit() like ia64 did.
parent
686b4f33
Changes
4
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Showing
4 changed files
with
135 additions
and
111 deletions
+135
-111
arch/sparc64/kernel/sparc64_ksyms.c
arch/sparc64/kernel/sparc64_ksyms.c
+5
-0
arch/sparc64/lib/Makefile
arch/sparc64/lib/Makefile
+2
-1
arch/sparc64/lib/find_bit.c
arch/sparc64/lib/find_bit.c
+125
-0
include/asm-sparc64/bitops.h
include/asm-sparc64/bitops.h
+3
-110
No files found.
arch/sparc64/kernel/sparc64_ksyms.c
View file @
295b4cb6
...
...
@@ -189,6 +189,11 @@ EXPORT_SYMBOL(___test_and_change_bit);
EXPORT_SYMBOL
(
___test_and_set_le_bit
);
EXPORT_SYMBOL
(
___test_and_clear_le_bit
);
/* Bit searching */
EXPORT_SYMBOL
(
find_next_bit
);
EXPORT_SYMBOL
(
find_next_zero_bit
);
EXPORT_SYMBOL
(
find_next_zero_le_bit
);
EXPORT_SYMBOL
(
ivector_table
);
EXPORT_SYMBOL
(
enable_irq
);
EXPORT_SYMBOL
(
disable_irq
);
...
...
arch/sparc64/lib/Makefile
View file @
295b4cb6
...
...
@@ -10,7 +10,8 @@ lib-y := PeeCeeI.o blockops.o strlen.o strncmp.o \
VIScopy.o VISbzero.o VISmemset.o VIScsum.o VIScsumcopy.o
\
VIScsumcopyusr.o VISsave.o atomic.o rwlock.o bitops.o
\
U3memcpy.o U3copy_from_user.o U3copy_to_user.o
\
U3copy_in_user.o mcount.o ipcsum.o rwsem.o xor.o splock.o
U3copy_in_user.o mcount.o ipcsum.o rwsem.o xor.o splock.o
\
find_bit.o
lib-$(CONFIG_DEBUG_SPINLOCK)
+=
debuglocks.o
lib-$(CONFIG_HAVE_DEC_LOCK)
+=
dec_and_lock.o
arch/sparc64/lib/find_bit.c
0 → 100644
View file @
295b4cb6
#include <asm/bitops.h>
/**
* find_next_bit - find the next set bit in a memory region
* @addr: The address to base the search on
* @offset: The bitnumber to start searching at
* @size: The maximum size to search
*/
unsigned
long
find_next_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
*
(
p
++
);
tmp
&=
(
~
0UL
<<
offset
);
if
(
size
<
64
)
goto
found_first
;
if
(
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63UL
)
{
if
((
tmp
=
*
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
*
p
;
found_first:
tmp
&=
(
~
0UL
>>
(
64
-
size
));
if
(
tmp
==
0UL
)
/* Are any bits set? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
__ffs
(
tmp
);
}
/* find_next_zero_bit() finds the first zero bit in a bit string of length
* 'size' bits, starting the search at bit 'offset'. This is largely based
* on Linus's ALPHA routines, which are pretty portable BTW.
*/
unsigned
long
find_next_zero_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
*
(
p
++
);
tmp
|=
~
0UL
>>
(
64
-
offset
);
if
(
size
<
64
)
goto
found_first
;
if
(
~
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63UL
)
{
if
(
~
(
tmp
=
*
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
*
p
;
found_first:
tmp
|=
~
0UL
<<
size
;
if
(
tmp
==
~
0UL
)
/* Are any bits zero? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
ffz
(
tmp
);
}
unsigned
long
find_next_zero_le_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
__swab64p
(
p
++
);
tmp
|=
(
~
0UL
>>
(
64
-
offset
));
if
(
size
<
64
)
goto
found_first
;
if
(
~
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63
)
{
if
(
~
(
tmp
=
__swab64p
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
__swab64p
(
p
);
found_first:
tmp
|=
(
~
0UL
<<
size
);
if
(
tmp
==
~
0UL
)
/* Are any bits zero? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
ffz
(
tmp
);
}
include/asm-sparc64/bitops.h
View file @
295b4cb6
...
...
@@ -204,43 +204,7 @@ static __inline__ unsigned int hweight8(unsigned int w)
* @offset: The bitnumber to start searching at
* @size: The maximum size to search
*/
static
__inline__
unsigned
long
find_next_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
*
(
p
++
);
tmp
&=
(
~
0UL
<<
offset
);
if
(
size
<
64
)
goto
found_first
;
if
(
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63UL
)
{
if
((
tmp
=
*
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
*
p
;
found_first:
tmp
&=
(
~
0UL
>>
(
64
-
size
));
if
(
tmp
==
0UL
)
/* Are any bits set? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
__ffs
(
tmp
);
}
extern
unsigned
long
find_next_bit
(
unsigned
long
*
,
unsigned
long
,
unsigned
long
);
/**
* find_first_bit - find the first set bit in a memory region
...
...
@@ -258,43 +222,7 @@ static __inline__ unsigned long find_next_bit(unsigned long *addr, unsigned long
* on Linus's ALPHA routines, which are pretty portable BTW.
*/
static
__inline__
unsigned
long
find_next_zero_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
*
(
p
++
);
tmp
|=
~
0UL
>>
(
64
-
offset
);
if
(
size
<
64
)
goto
found_first
;
if
(
~
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63UL
)
{
if
(
~
(
tmp
=
*
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
*
p
;
found_first:
tmp
|=
~
0UL
<<
size
;
if
(
tmp
==
~
0UL
)
/* Are any bits zero? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
ffz
(
tmp
);
}
extern
unsigned
long
find_next_zero_bit
(
unsigned
long
*
,
unsigned
long
,
unsigned
long
);
#define find_first_zero_bit(addr, size) \
find_next_zero_bit((addr), (size), 0)
...
...
@@ -320,42 +248,7 @@ static __inline__ int test_le_bit(int nr, __const__ unsigned long * addr)
#define find_first_zero_le_bit(addr, size) \
find_next_zero_le_bit((addr), (size), 0)
static
__inline__
unsigned
long
find_next_zero_le_bit
(
unsigned
long
*
addr
,
unsigned
long
size
,
unsigned
long
offset
)
{
unsigned
long
*
p
=
addr
+
(
offset
>>
6
);
unsigned
long
result
=
offset
&
~
63UL
;
unsigned
long
tmp
;
if
(
offset
>=
size
)
return
size
;
size
-=
result
;
offset
&=
63UL
;
if
(
offset
)
{
tmp
=
__swab64p
(
p
++
);
tmp
|=
(
~
0UL
>>
(
64
-
offset
));
if
(
size
<
64
)
goto
found_first
;
if
(
~
tmp
)
goto
found_middle
;
size
-=
64
;
result
+=
64
;
}
while
(
size
&
~
63
)
{
if
(
~
(
tmp
=
__swab64p
(
p
++
)))
goto
found_middle
;
result
+=
64
;
size
-=
64
;
}
if
(
!
size
)
return
result
;
tmp
=
__swab64p
(
p
);
found_first:
tmp
|=
(
~
0UL
<<
size
);
if
(
tmp
==
~
0UL
)
/* Are any bits zero? */
return
result
+
size
;
/* Nope. */
found_middle:
return
result
+
ffz
(
tmp
);
}
extern
unsigned
long
find_next_zero_le_bit
(
unsigned
long
*
,
unsigned
long
,
unsigned
long
);
#ifdef __KERNEL__
...
...
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