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Merge master.kernel.org:/home/rmk/linux-2.6-arm

Browse source 
Manual conflict merge of arch/arm/Kconfig
This commit is contained in:
Linus Torvalds 2006-02-08 15:20:40 -08:00
commit cce0cac125
33 changed files with 347 additions and 137 deletions
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6
include/asm-arm/arch-omap/io.h
View file

@ -116,7 +116,11 @@ typedef struct { volatile u32 offset[4096]; } __regbase32;
->offset[((vaddr)&4095)>>2]
#define __REG32(paddr) __REGV32(io_p2v(paddr))
extern void omap_map_common_io(void);
extern void omap1_map_common_io(void);
extern void omap1_init_common_hw(void);
extern void omap2_map_common_io(void);
extern void omap2_init_common_hw(void);
#else

129
include/asm-arm/mutex.h
View file

@ -23,72 +23,71 @@
* simply bail out immediately through the slow path where the lock will be
* reattempted until it succeeds.
*/
#define __mutex_fastpath_lock(count, fail_fn) \
do { \
int __ex_flag, __res; \
\
typecheck(atomic_t *, count); \
typecheck_fn(fastcall void (*)(atomic_t *), fail_fn); \
\
__asm__ ( \
"ldrex %0, [%2] \n" \
"sub %0, %0, #1 \n" \
"strex %1, %0, [%2] \n" \
\
: "=&r" (__res), "=&r" (__ex_flag) \
: "r" (&(count)->counter) \
: "cc","memory" ); \
\
if (unlikely(__res || __ex_flag)) \
fail_fn(count); \
} while (0)
static inline void
__mutex_fastpath_lock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
{
int __ex_flag, __res;
#define __mutex_fastpath_lock_retval(count, fail_fn) \
({ \
int __ex_flag, __res; \
\
typecheck(atomic_t *, count); \
typecheck_fn(fastcall int (*)(atomic_t *), fail_fn); \
\
__asm__ ( \
"ldrex %0, [%2] \n" \
"sub %0, %0, #1 \n" \
"strex %1, %0, [%2] \n" \
\
: "=&r" (__res), "=&r" (__ex_flag) \
: "r" (&(count)->counter) \
: "cc","memory" ); \
\
__res |= __ex_flag; \
if (unlikely(__res != 0)) \
__res = fail_fn(count); \
__res; \
})
__asm__ (
"ldrex %0, [%2] \n\t"
"sub %0, %0, #1 \n\t"
"strex %1, %0, [%2] "
: "=&r" (__res), "=&r" (__ex_flag)
: "r" (&(count)->counter)
: "cc","memory" );
__res |= __ex_flag;
if (unlikely(__res != 0))
fail_fn(count);
}
static inline int
__mutex_fastpath_lock_retval(atomic_t *count, fastcall int (*fail_fn)(atomic_t *))
{
int __ex_flag, __res;
__asm__ (
"ldrex %0, [%2] \n\t"
"sub %0, %0, #1 \n\t"
"strex %1, %0, [%2] "
: "=&r" (__res), "=&r" (__ex_flag)
: "r" (&(count)->counter)
: "cc","memory" );
__res |= __ex_flag;
if (unlikely(__res != 0))
__res = fail_fn(count);
return __res;
}
/*
* Same trick is used for the unlock fast path. However the original value,
* rather than the result, is used to test for success in order to have
* better generated assembly.
*/
#define __mutex_fastpath_unlock(count, fail_fn) \
do { \
int __ex_flag, __res, __orig; \
\
typecheck(atomic_t *, count); \
typecheck_fn(fastcall void (*)(atomic_t *), fail_fn); \
\
__asm__ ( \
"ldrex %0, [%3] \n" \
"add %1, %0, #1 \n" \
"strex %2, %1, [%3] \n" \
\
: "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag) \
: "r" (&(count)->counter) \
: "cc","memory" ); \
\
if (unlikely(__orig || __ex_flag)) \
fail_fn(count); \
} while (0)
static inline void
__mutex_fastpath_unlock(atomic_t *count, fastcall void (*fail_fn)(atomic_t *))
{
int __ex_flag, __res, __orig;
__asm__ (
"ldrex %0, [%3] \n\t"
"add %1, %0, #1 \n\t"
"strex %2, %1, [%3] "
: "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag)
: "r" (&(count)->counter)
: "cc","memory" );
__orig |= __ex_flag;
if (unlikely(__orig != 0))
fail_fn(count);
}
/*
* If the unlock was done on a contended lock, or if the unlock simply fails
@ -110,12 +109,12 @@ __mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *))
__asm__ (
"1: ldrex %0, [%3] \n"
"subs %1, %0, #1 \n"
"strexeq %2, %1, [%3] \n"
"movlt %0, #0 \n"
"cmpeq %2, #0 \n"
"bgt 1b \n"
"1: ldrex %0, [%3] \n\t"
"subs %1, %0, #1 \n\t"
"strexeq %2, %1, [%3] \n\t"
"movlt %0, #0 \n\t"
"cmpeq %2, #0 \n\t"
"bgt 1b "
: "=&r" (__orig), "=&r" (__res), "=&r" (__ex_flag)
: "r" (&count->counter)