diogo/yap-6.3
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This commit was generated by cvs2svn to compensate for changes in r4,

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which included commits to RCS files with non-trunk default branches.


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@5 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
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vsc
2001-04-09 19:54:03 +00:00
parent 9a8ee05f1f
commit e5f4633c39
457 changed files with 189536 additions and 0 deletions
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58
OPTYap/mips_locks.h Normal file
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@@ -0,0 +1,58 @@
/* ------------------------------- **
** Atomic locking for MIPS **
** ------------------------------- */
/* This code is stolen from the Linux kernel */
typedef struct { unsigned long a[100]; } __dummy_lock_t;
#define __dummy_lock(lock) (*(__dummy_lock_t *)(lock))
#define load_linked(addr) \
({ \
unsigned int __res; \
\
__asm__ __volatile__( \
"ll\t%0,(%1)" \
: "=r" (__res) \
: "r" ((unsigned long) (addr))); \
\
__res; \
})
#define store_conditional(addr,value) \
({ \
int __res; \
\
__asm__ __volatile__( \
"sc\t%0,(%2)" \
: "=r" (__res) \
: "0" (value), "r" (addr)); \
\
__res; \
})
#define INIT_LOCK(LOCK_VAR) ((LOCK_VAR) = 0)
#define TRY_LOCK(LOCK_PTR) (!test_and_set_bit(0,(__dumy_lock_t *)(LOCK_PTR)))
#define LOCK(LOCK_VAR) _spin_lock((__dummy_lock_t *)(&(LOCK_VAR)))
#define IS_LOCKED(LOCK_VAR) ((LOCK_VAR) != 0)
#define IS_UNLOCKED(LOCK_VAR) ((LOCK_VAR) == 0)
/* We need to support sync on MIPS */
#define UNLOCK(LOCK_VAR) spin_unlock((__dummy_lock_t *)(&(LOCK_VAR)))
typedef struct {
volatile unsigned int lock;
} rwlock_t;
#define RW_LOCK_UNLOCKED (rwlock_t) { 0 }
#define READ_LOCK(X) _read_lock(&(X))
#define READ_UNLOCK(X) _read_unlock(&(X))
#define WRITE_LOCK(X) _write_lock(&(X))
#define WRITE_UNLOCK(X) _write_unlock(&(X))
#define INIT_RWLOCK(RW) (RW) = RW_LOCK_UNLOCKED