tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1#ifndef _ASM_IO_64_NONATOMIC_HI_LO_H_
2#define _ASM_IO_64_NONATOMIC_HI_LO_H_
3
4#include <linux/io.h>
5#include <asm-generic/int-ll64.h>
6
7#ifndef readq
8static inline __u64 readq(const volatile void __iomem *addr)
9{
10 const volatile u32 __iomem *p = addr;
11 u32 low, high;
12
13 high = readl(p + 1);
14 low = readl(p);
15
16 return low + ((u64)high << 32);
17}
18#endif
19
20#ifndef writeq
21static inline void writeq(__u64 val, volatile void __iomem *addr)
22{
23 writel(val >> 32, addr + 4);
24 writel(val, addr);
25}
26#endif
27
28#endif /* _ASM_IO_64_NONATOMIC_HI_LO_H_ */