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renaming some OPTYap files in order to have a more consistent name organization

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This commit is contained in:
Ricardo Rocha
2010-04-19 02:34:08 +01:00
parent 73d210c991
commit c221c2ff85
23 changed files with 694 additions and 818 deletions
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128
OPTYap/locks_mips_funcs.h Normal file
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@@ -0,0 +1,128 @@
/************************************************************************
** **
** The YapTab/YapOr/OPTYap systems **
** **
** YapTab extends the Yap Prolog engine to support sequential tabling **
** YapOr extends the Yap Prolog engine to support or-parallelism **
** OPTYap extends the Yap Prolog engine to support or-parallel tabling **
** **
** **
** Yap Prolog was developed at University of Porto, Portugal **
** **
************************************************************************/
/************************************************************************
** Atomic locks for MIPS **
************************************************************************/
static __inline__ int test_and_set_bit(int nr, volatile void *addr)
{
int mask, retval, mw;
mask = 1;
do {
mw = load_linked(addr);
retval = (mask & mw) != 0;
} while (!store_conditional(addr, mw|mask));
return retval;
}
static inline void _spin_lock(__dummy_lock_t *lock)
{
unsigned int tmp;
__asm__ __volatile__(
".set\tnoreorder\t\t\t# spin_lock\n"
"1:\tll\t%1, %2\n\t"
"bnez\t%1, 1b\n\t"
" li\t%1, 1\n\t"
"sc\t%1, %0\n\t"
"beqz\t%1, 1b\n\t"
" sync\n\t"
".set\treorder"
: "=o" (__dummy_lock(lock)), "=&r" (tmp)
: "o" (__dummy_lock(lock))
: "memory");
}
static inline void spin_unlock(__dummy_lock_t *lock)
{
__asm__ __volatile__(
".set\tnoreorder\t\t\t# spin_unlock\n\t"
"sync\n\t"
"sw\t$0, %0\n\t"
".set\treorder"
: "=o" (__dummy_lock(lock))
: "o" (__dummy_lock(lock))
: "memory");
}
static inline void _read_lock(rwlock_t *rw)
{
unsigned int tmp;
__asm__ __volatile__(
".set\tnoreorder\t\t\t# read_lock\n"
"1:\tll\t%1, %2\n\t"
"bltz\t%1, 1b\n\t"
" addu\t%1, 1\n\t"
"sc\t%1, %0\n\t"
"beqz\t%1, 1b\n\t"
" sync\n\t"
".set\treorder"
: "=o" (__dummy_lock(rw)), "=&r" (tmp)
: "o" (__dummy_lock(rw))
: "memory");
}
/* Note the use of sub, not subu which will make the kernel die with an
overflow exception if we ever try to unlock an rwlock that is already
unlocked or is being held by a writer. */
static inline void _read_unlock(rwlock_t *rw)
{
unsigned int tmp;
__asm__ __volatile__(
".set\tnoreorder\t\t\t# read_unlock\n"
"1:\tll\t%1, %2\n\t"
"sub\t%1, 1\n\t"
"sc\t%1, %0\n\t"
"beqz\t%1, 1b\n\t"
".set\treorder"
: "=o" (__dummy_lock(rw)), "=&r" (tmp)
: "o" (__dummy_lock(rw))
: "memory");
}
static inline void _write_lock(rwlock_t *rw)
{
unsigned int tmp;
__asm__ __volatile__(
".set\tnoreorder\t\t\t# write_lock\n"
"1:\tll\t%1, %2\n\t"
"bnez\t%1, 1b\n\t"
" lui\t%1, 0x8000\n\t"
"sc\t%1, %0\n\t"
"beqz\t%1, 1b\n\t"
" sync\n\t"
".set\treorder"
: "=o" (__dummy_lock(rw)), "=&r" (tmp)
: "o" (__dummy_lock(rw))
: "memory");
}
static inline void _write_unlock(rwlock_t *rw)
{
__asm__ __volatile__(
".set\tnoreorder\t\t\t# write_unlock\n\t"
"sync\n\t"
"sw\t$0, %0\n\t"
".set\treorder"
: "=o" (__dummy_lock(rw))
: "o" (__dummy_lock(rw))
: "memory");
}