name : io-64-nonatomic-lo-hi.h /* SPDX-License-Identifier: GPL-2.0 */ #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); } static inline __u64 lo_hi_readq_relaxed(const volatile void __iomem *addr) { const volatile u32 __iomem *p = addr; u32 low, high; low = readl_relaxed(p); high = readl_relaxed(p + 1); return low + ((u64)high << 32); } static inline void lo_hi_writeq_relaxed(__u64 val, volatile void __iomem *addr) { writel_relaxed(val, addr); writel_relaxed(val >> 32, addr + 4); } #ifndef readq #define readq lo_hi_readq #endif #ifndef writeq #define writeq lo_hi_writeq #endif #ifndef readq_relaxed #define readq_relaxed lo_hi_readq_relaxed #endif #ifndef writeq_relaxed #define writeq_relaxed lo_hi_writeq_relaxed #endif #ifndef ioread64_lo_hi #define ioread64_lo_hi ioread64_lo_hi static inline u64 ioread64_lo_hi(const void __iomem *addr) { u32 low, high; low = ioread32(addr); high = ioread32(addr + sizeof(u32)); return low + ((u64)high << 32); } #endif #ifndef iowrite64_lo_hi #define iowrite64_lo_hi iowrite64_lo_hi static inline void iowrite64_lo_hi(u64 val, void __iomem *addr) { iowrite32(val, addr); iowrite32(val >> 32, addr + sizeof(u32)); } #endif #ifndef ioread64be_lo_hi #define ioread64be_lo_hi ioread64be_lo_hi static inline u64 ioread64be_lo_hi(const void __iomem *addr) { u32 low, high; low = ioread32be(addr + sizeof(u32)); high = ioread32be(addr); return low + ((u64)high << 32); } #endif #ifndef iowrite64be_lo_hi #define iowrite64be_lo_hi iowrite64be_lo_hi static inline void iowrite64be_lo_hi(u64 val, void __iomem *addr) { iowrite32be(val, addr + sizeof(u32)); iowrite32be(val >> 32, addr); } #endif #ifndef ioread64 #define ioread64_is_nonatomic #define ioread64 ioread64_lo_hi #endif #ifndef iowrite64 #define iowrite64_is_nonatomic #define iowrite64 iowrite64_lo_hi #endif #ifndef ioread64be #define ioread64be_is_nonatomic #define ioread64be ioread64be_lo_hi #endif #ifndef iowrite64be #define iowrite64be_is_nonatomic #define iowrite64be iowrite64be_lo_hi #endif #endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */