diff options
Diffstat (limited to 'arch/microblaze/include/asm/cmpxchg.h')
-rw-r--r-- | arch/microblaze/include/asm/cmpxchg.h | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/arch/microblaze/include/asm/cmpxchg.h b/arch/microblaze/include/asm/cmpxchg.h deleted file mode 100644 index 596300c74509..000000000000 --- a/arch/microblaze/include/asm/cmpxchg.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_MICROBLAZE_CMPXCHG_H -#define _ASM_MICROBLAZE_CMPXCHG_H - -#include <linux/irqflags.h> - -void __bad_xchg(volatile void *ptr, int size); - -static inline unsigned long __xchg(unsigned long x, volatile void *ptr, - int size) -{ - unsigned long ret; - unsigned long flags; - - switch (size) { - case 1: - local_irq_save(flags); - ret = *(volatile unsigned char *)ptr; - *(volatile unsigned char *)ptr = x; - local_irq_restore(flags); - break; - - case 4: - local_irq_save(flags); - ret = *(volatile unsigned long *)ptr; - *(volatile unsigned long *)ptr = x; - local_irq_restore(flags); - break; - default: - __bad_xchg(ptr, size), ret = 0; - break; - } - - return ret; -} - -#define xchg(ptr, x) \ - ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))) - -#include <asm-generic/cmpxchg.h> -#include <asm-generic/cmpxchg-local.h> - -#endif /* _ASM_MICROBLAZE_CMPXCHG_H */ |