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hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/include/linux/io-64-nonatomic-lo-hi.h
..
..
@@ -55,4 +55,68 @@
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 #define writeq_relaxed lo_hi_writeq_relaxed
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 #endif
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+#ifndef ioread64_lo_hi
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+#define ioread64_lo_hi ioread64_lo_hi
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+static inline u64 ioread64_lo_hi(const void __iomem *addr)
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+{
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+	u32 low, high;
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+
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+	low = ioread32(addr);
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+	high = ioread32(addr + sizeof(u32));
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+
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+	return low + ((u64)high << 32);
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+}
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+#endif
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+
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+#ifndef iowrite64_lo_hi
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+#define iowrite64_lo_hi iowrite64_lo_hi
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+static inline void iowrite64_lo_hi(u64 val, void __iomem *addr)
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+{
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+	iowrite32(val, addr);
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+	iowrite32(val >> 32, addr + sizeof(u32));
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+}
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+#endif
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+
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+#ifndef ioread64be_lo_hi
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+#define ioread64be_lo_hi ioread64be_lo_hi
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+static inline u64 ioread64be_lo_hi(const void __iomem *addr)
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+{
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+	u32 low, high;
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+
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+	low = ioread32be(addr + sizeof(u32));
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+	high = ioread32be(addr);
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+
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+	return low + ((u64)high << 32);
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+}
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+#endif
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+
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+#ifndef iowrite64be_lo_hi
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+#define iowrite64be_lo_hi iowrite64be_lo_hi
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+static inline void iowrite64be_lo_hi(u64 val, void __iomem *addr)
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+{
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+	iowrite32be(val, addr + sizeof(u32));
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+	iowrite32be(val >> 32, addr);
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+}
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+#endif
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+
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+#ifndef ioread64
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+#define ioread64_is_nonatomic
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+#define ioread64 ioread64_lo_hi
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+#endif
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+
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+#ifndef iowrite64
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+#define iowrite64_is_nonatomic
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+#define iowrite64 iowrite64_lo_hi
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+#endif
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+
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+#ifndef ioread64be
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+#define ioread64be_is_nonatomic
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+#define ioread64be ioread64be_lo_hi
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+#endif
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+
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+#ifndef iowrite64be
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+#define iowrite64be_is_nonatomic
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+#define iowrite64be iowrite64be_lo_hi
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+#endif
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+
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 #endif	/* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */