/* 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_ */