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Diffstat (limited to 'arch/ppc/kernel/bitops.c')
-rw-r--r--arch/ppc/kernel/bitops.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/arch/ppc/kernel/bitops.c b/arch/ppc/kernel/bitops.c
deleted file mode 100644
index 7f53d193968..00000000000
--- a/arch/ppc/kernel/bitops.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright (C) 1996 Paul Mackerras.
- */
-
-#include <linux/kernel.h>
-#include <linux/bitops.h>
-
-/*
- * If the bitops are not inlined in bitops.h, they are defined here.
- * -- paulus
- */
-#if !__INLINE_BITOPS
-void set_bit(int nr, volatile void * addr)
-{
- unsigned long old;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%3 \n\
- or %0,%0,%2 \n"
- PPC405_ERR77(0,%3)
-" stwcx. %0,0,%3 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc" );
-}
-
-void clear_bit(int nr, volatile void *addr)
-{
- unsigned long old;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%3 \n\
- andc %0,%0,%2 \n"
- PPC405_ERR77(0,%3)
-" stwcx. %0,0,%3 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc");
-}
-
-void change_bit(int nr, volatile void *addr)
-{
- unsigned long old;
- unsigned long mask = 1 << (nr & 0x1f);
- unsigned long *p = ((unsigned long *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%3 \n\
- xor %0,%0,%2 \n"
- PPC405_ERR77(0,%3)
-" stwcx. %0,0,%3 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc");
-}
-
-int test_and_set_bit(int nr, volatile void *addr)
-{
- unsigned int old, t;
- unsigned int mask = 1 << (nr & 0x1f);
- volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%4 \n\
- or %1,%0,%3 \n"
- PPC405_ERR77(0,%4)
-" stwcx. %1,0,%4 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=&r" (t), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc");
-
- return (old & mask) != 0;
-}
-
-int test_and_clear_bit(int nr, volatile void *addr)
-{
- unsigned int old, t;
- unsigned int mask = 1 << (nr & 0x1f);
- volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%4 \n\
- andc %1,%0,%3 \n"
- PPC405_ERR77(0,%4)
-" stwcx. %1,0,%4 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=&r" (t), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc");
-
- return (old & mask) != 0;
-}
-
-int test_and_change_bit(int nr, volatile void *addr)
-{
- unsigned int old, t;
- unsigned int mask = 1 << (nr & 0x1f);
- volatile unsigned int *p = ((volatile unsigned int *)addr) + (nr >> 5);
-
- __asm__ __volatile__(SMP_WMB "\n\
-1: lwarx %0,0,%4 \n\
- xor %1,%0,%3 \n"
- PPC405_ERR77(0,%4)
-" stwcx. %1,0,%4 \n\
- bne 1b"
- SMP_MB
- : "=&r" (old), "=&r" (t), "=m" (*p)
- : "r" (mask), "r" (p), "m" (*p)
- : "cc");
-
- return (old & mask) != 0;
-}
-#endif /* !__INLINE_BITOPS */