io-64-nonatomic-lo-hi.h

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#ifndef _ASM_IO_64_NONATOMIC_LO_HI_H_
#define _ASM_IO_64_NONATOMIC_LO_HI_H_

#include <linux/io.h>
#include <asm-generic/int-ll64.h>

#ifndef readq
static inline __u64 readq(const volatile void __iomem *addr)
{
    const volatile u32 __iomem *p = addr;
    u32 low, high;

    low = readl(p);
    high = readl(p + 1);

    return low + ((u64)high << 32);
}
#endif

#ifndef writeq
static inline void writeq(__u64 val, volatile void __iomem *addr)
{
    writel(val, addr);
    writel(val >> 32, addr + 4);
}
#endif

#endif  /* _ASM_IO_64_NONATOMIC_LO_HI_H_ */