mips->mips64

1 files changed, 0 insertions, 55 deletions

diff --git a/lib/libpthread/arch/mips/_atomic_lock.c b/lib/libpthread/arch/mips/_atomic_lock.c
deleted file mode 100644
index 8eec2084c82..00000000000
--- a/lib/libpthread/arch/mips/_atomic_lock.c
+++ /dev/null
@@ -1,55 +0,0 @@
-/*	$OpenBSD: _atomic_lock.c,v 1.7 2002/10/11 19:08:41 marc Exp $	*/
-/*
- * Atomic lock for mips
- */
-
-#include "pthread.h"
-#include "pthread_private.h"
-#include "spinlock.h"
-#include <signal.h>
-
-/*
- * uthread atomic lock: 
- * 	attempt to acquire a lock (by giving it a non-zero value).
- *	Return zero on success, or the lock's value on failure
- */
-int
-_atomic_lock(volatile _spinlock_lock_t *lock)
-{
-#if __mips >= 2
-	_spinlock_lock_t old;
-	_spinlock_lock_t temp;
-
-	do {
-		/*
-		 * On a mips2 machine and above, we can use ll/sc.
-		 * Read the lock and tag the cache line with a 'load linked'
-		 * instruction. (Register 17 (LLAddr) will hold the 
-		 * physical address of lock for diagnostic purposes);
-		 * (Under pathologically heavy swapping, the physaddr may 
-		 * change! XXX)
-		 */
-		__asm__("ll %0, %1" : "=r"(old) : "m"(*lock));
-		if (old != _SPINLOCK_UNLOCKED) 
-			break; /* already locked */
-		/*
-		 * Try and store a 1 at the tagged lock address.  If
-		 * anyone else has since written it, the tag on the cache
-		 * line will have been wiped, and temp will be set to zero
-		 * by the 'store conditional' instruction.
-		 */
-		temp = _SPINLOCK_LOCKED;
-		__asm__("sc  %0, %1" : "=r"(temp), "=m"(*lock)
-				     : "0"(temp));
-	} while (temp == 0);
-
-	return (old != _SPINLOCK_UNLOCKED);
-#else
-	/*
-	 * Older MIPS cpus have no way of doing an atomic lock
-	 * without some kind of shift to supervisor mode.
-	 */
-
-	return (_thread_slow_atomic_lock(lock));
-#endif
-}