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git.proxmox.com Git - mirror_ubuntu-focal-kernel.git/blob - arch/sh/include/asm/cmpxchg-irq.h
1 #ifndef __ASM_SH_CMPXCHG_IRQ_H
2 #define __ASM_SH_CMPXCHG_IRQ_H
4 #include <linux/irqflags.h>
6 static inline unsigned long xchg_u32(volatile u32
*m
, unsigned long val
)
8 unsigned long flags
, retval
;
10 local_irq_save(flags
);
13 local_irq_restore(flags
);
17 static inline unsigned long xchg_u16(volatile u16
*m
, unsigned long val
)
19 unsigned long flags
, retval
;
21 local_irq_save(flags
);
24 local_irq_restore(flags
);
28 static inline unsigned long xchg_u8(volatile u8
*m
, unsigned long val
)
30 unsigned long flags
, retval
;
32 local_irq_save(flags
);
35 local_irq_restore(flags
);
39 static inline unsigned long __cmpxchg_u32(volatile int *m
, unsigned long old
,
45 local_irq_save(flags
);
49 local_irq_restore(flags
); /* implies memory barrier */
53 #endif /* __ASM_SH_CMPXCHG_IRQ_H */