forked from Minki/linux
2f8e2c8777
These are not implementations of default architecture code but helpers for drivers. Move them to the place they belong to. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Darren Hart <dvhart@linux.intel.com> Acked-by: Hitoshi Mitake <mitake.hitoshi@lab.ntt.co.jp> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
33 lines
610 B
C
33 lines
610 B
C
#ifndef _LINUX_IO_64_NONATOMIC_LO_HI_H_
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#define _LINUX_IO_64_NONATOMIC_LO_HI_H_
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#include <linux/io.h>
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#include <asm-generic/int-ll64.h>
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static inline __u64 lo_hi_readq(const volatile void __iomem *addr)
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{
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const volatile u32 __iomem *p = addr;
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u32 low, high;
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low = readl(p);
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high = readl(p + 1);
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return low + ((u64)high << 32);
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}
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static inline void lo_hi_writeq(__u64 val, volatile void __iomem *addr)
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{
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writel(val, addr);
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writel(val >> 32, addr + 4);
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}
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#ifndef readq
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#define readq lo_hi_readq
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#endif
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#ifndef writeq
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#define writeq lo_hi_writeq
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#endif
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#endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */
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