1 files changed, 0 insertions, 81 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/lib/locks.c b/ANDROID_3.4.5/arch/powerpc/lib/locks.c
deleted file mode 100644
index bb7cfecf..00000000
--- a/ANDROID_3.4.5/arch/powerpc/lib/locks.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Spin and read/write lock operations.
- *
- * Copyright (C) 2001-2004 Paul Mackerras <paulus@au.ibm.com>, IBM
- * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
- * Copyright (C) 2002 Dave Engebretsen <engebret@us.ibm.com>, IBM
- *   Rework to support virtual processors
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/export.h>
-#include <linux/stringify.h>
-#include <linux/smp.h>
-
-/* waiting for a spinlock... */
-#if defined(CONFIG_PPC_SPLPAR)
-#include <asm/hvcall.h>
-#include <asm/smp.h>
-
-void __spin_yield(arch_spinlock_t *lock)
-{
-	unsigned int lock_value, holder_cpu, yield_count;
-
-	lock_value = lock->slock;
-	if (lock_value == 0)
-		return;
-	holder_cpu = lock_value & 0xffff;
-	BUG_ON(holder_cpu >= NR_CPUS);
-	yield_count = lppaca_of(holder_cpu).yield_count;
-	if ((yield_count & 1) == 0)
-		return;		/* virtual cpu is currently running */
-	rmb();
-	if (lock->slock != lock_value)
-		return;		/* something has changed */
-	plpar_hcall_norets(H_CONFER,
-		get_hard_smp_processor_id(holder_cpu), yield_count);
-}
-
-/*
- * Waiting for a read lock or a write lock on a rwlock...
- * This turns out to be the same for read and write locks, since
- * we only know the holder if it is write-locked.
- */
-void __rw_yield(arch_rwlock_t *rw)
-{
-	int lock_value;
-	unsigned int holder_cpu, yield_count;
-
-	lock_value = rw->lock;
-	if (lock_value >= 0)
-		return;		/* no write lock at present */
-	holder_cpu = lock_value & 0xffff;
-	BUG_ON(holder_cpu >= NR_CPUS);
-	yield_count = lppaca_of(holder_cpu).yield_count;
-	if ((yield_count & 1) == 0)
-		return;		/* virtual cpu is currently running */
-	rmb();
-	if (rw->lock != lock_value)
-		return;		/* something has changed */
-	plpar_hcall_norets(H_CONFER,
-		get_hard_smp_processor_id(holder_cpu), yield_count);
-}
-#endif
-
-void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
-	while (lock->slock) {
-		HMT_low();
-		if (SHARED_PROCESSOR)
-			__spin_yield(lock);
-	}
-	HMT_medium();
-}
-
-EXPORT_SYMBOL(arch_spin_unlock_wait);