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_
|
|
#define _LINUX_IO_64_NONATOMIC_LO_HI_H_
|
|
|
|
#include <linux/io.h>
|
|
#include <asm-generic/int-ll64.h>
|
|
|
|
static inline __u64 lo_hi_readq(const volatile void __iomem *addr)
|
|
{
|
|
const volatile u32 __iomem *p = addr;
|
|
u32 low, high;
|
|
|
|
low = readl(p);
|
|
high = readl(p + 1);
|
|
|
|
return low + ((u64)high << 32);
|
|
}
|
|
|
|
static inline void lo_hi_writeq(__u64 val, volatile void __iomem *addr)
|
|
{
|
|
writel(val, addr);
|
|
writel(val >> 32, addr + 4);
|
|
}
|
|
|
|
#ifndef readq
|
|
#define readq lo_hi_readq
|
|
#endif
|
|
|
|
#ifndef writeq
|
|
#define writeq lo_hi_writeq
|
|
#endif
|
|
|
|
#endif /* _LINUX_IO_64_NONATOMIC_LO_HI_H_ */
|