diff options
Diffstat (limited to 'arch/metag/include/asm/cmpxchg_lock1.h')
-rw-r--r-- | arch/metag/include/asm/cmpxchg_lock1.h | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/arch/metag/include/asm/cmpxchg_lock1.h b/arch/metag/include/asm/cmpxchg_lock1.h deleted file mode 100644 index 5976e39db2b4..000000000000 --- a/arch/metag/include/asm/cmpxchg_lock1.h +++ /dev/null @@ -1,49 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __ASM_METAG_CMPXCHG_LOCK1_H -#define __ASM_METAG_CMPXCHG_LOCK1_H - -#include <asm/global_lock.h> - -/* Use LOCK2 as these have to be atomic w.r.t. ordinary accesses. */ - -static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val) -{ - unsigned long flags, retval; - - __global_lock2(flags); - fence(); - retval = *m; - *m = val; - __global_unlock2(flags); - return retval; -} - -static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val) -{ - unsigned long flags, retval; - - __global_lock2(flags); - fence(); - retval = *m; - *m = val & 0xff; - __global_unlock2(flags); - return retval; -} - -static inline unsigned long __cmpxchg_u32(volatile int *m, unsigned long old, - unsigned long new) -{ - __u32 retval; - unsigned long flags; - - __global_lock2(flags); - retval = *m; - if (retval == old) { - fence(); - *m = new; - } - __global_unlock2(flags); - return retval; -} - -#endif /* __ASM_METAG_CMPXCHG_LOCK1_H */ |