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1 | #ifndef _ASM_IO_64_NONATOMIC_LO_HI_H_ |
2 | #define _ASM_IO_64_NONATOMIC_LO_HI_H_ |
3 | |
4 | #include <linux/io.h> |
5 | #include <asm-generic/int-ll64.h> |
6 | |
7 | #ifndef readq |
8 | static inline __u64 readq(const volatile void __iomem *addr) |
9 | { |
10 | const volatile u32 __iomem *p = addr; |
11 | u32 low, high; |
12 | |
13 | low = readl(p); |
14 | high = readl(p + 1); |
15 | |
16 | return low + ((u64)high << 32); |
17 | } |
18 | #endif |
19 | |
20 | #ifndef writeq |
21 | static inline void writeq(__u64 val, volatile void __iomem *addr) |
22 | { |
23 | writel(val, addr); |
24 | writel(val >> 32, addr + 4); |
25 | } |
26 | #endif |
27 | |
28 | #endif /* _ASM_IO_64_NONATOMIC_LO_HI_H_ */ |
29 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9