#ifndef _LINUX_IO_64_NONATOMIC_LO_HI_H_ #define _LINUX_IO_64_NONATOMIC_LO_HI_H_ #include <linux/io.h> #include <asm-generic/int-ll64.h> static inline __u64 lo_hi_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); } static inline void lo_hi_writeq(__u64 val, volatile void __iomem *addr) { writel(val, addr); writel(val >> 32, addr + 4); } #ifndef readq #define readq lo_hi_readq #endif #ifndef writeq #define writeq lo_hi_writeq #endif #endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */