name : io-64-nonatomic-hi-lo.h /* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_IO_64_NONATOMIC_HI_LO_H_ #define _LINUX_IO_64_NONATOMIC_HI_LO_H_ #include <linux/io.h> #include <asm-generic/int-ll64.h> static inline __u64 hi_lo_readq(const volatile void __iomem *addr) { const volatile u32 __iomem *p = addr; u32 low, high; high = readl(p + 1); low = readl(p); return low + ((u64)high << 32); } static inline void hi_lo_writeq(__u64 val, volatile void __iomem *addr) { writel(val >> 32, addr + 4); writel(val, addr); } static inline __u64 hi_lo_readq_relaxed(const volatile void __iomem *addr) { const volatile u32 __iomem *p = addr; u32 low, high; high = readl_relaxed(p + 1); low = readl_relaxed(p); return low + ((u64)high << 32); } static inline void hi_lo_writeq_relaxed(__u64 val, volatile void __iomem *addr) { writel_relaxed(val >> 32, addr + 4); writel_relaxed(val, addr); } #ifndef readq #define readq hi_lo_readq #endif #ifndef writeq #define writeq hi_lo_writeq #endif #ifndef readq_relaxed #define readq_relaxed hi_lo_readq_relaxed #endif #ifndef writeq_relaxed #define writeq_relaxed hi_lo_writeq_relaxed #endif #ifndef ioread64_hi_lo #define ioread64_hi_lo ioread64_hi_lo static inline u64 ioread64_hi_lo(const void __iomem *addr) { u32 low, high; high = ioread32(addr + sizeof(u32)); low = ioread32(addr); return low + ((u64)high << 32); } #endif #ifndef iowrite64_hi_lo #define iowrite64_hi_lo iowrite64_hi_lo static inline void iowrite64_hi_lo(u64 val, void __iomem *addr) { iowrite32(val >> 32, addr + sizeof(u32)); iowrite32(val, addr); } #endif #ifndef ioread64be_hi_lo #define ioread64be_hi_lo ioread64be_hi_lo static inline u64 ioread64be_hi_lo(const void __iomem *addr) { u32 low, high; high = ioread32be(addr); low = ioread32be(addr + sizeof(u32)); return low + ((u64)high << 32); } #endif #ifndef iowrite64be_hi_lo #define iowrite64be_hi_lo iowrite64be_hi_lo static inline void iowrite64be_hi_lo(u64 val, void __iomem *addr) { iowrite32be(val >> 32, addr); iowrite32be(val, addr + sizeof(u32)); } #endif #ifndef ioread64 #define ioread64_is_nonatomic #define ioread64 ioread64_hi_lo #endif #ifndef iowrite64 #define iowrite64_is_nonatomic #define iowrite64 iowrite64_hi_lo #endif #ifndef ioread64be #define ioread64be_is_nonatomic #define ioread64be ioread64be_hi_lo #endif #ifndef iowrite64be #define iowrite64be_is_nonatomic #define iowrite64be iowrite64be_hi_lo #endif #endif /* _LINUX_IO_64_NONATOMIC_HI_LO_H_ */