mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 10:46:49 +07:00
29 lines
536 B
C
29 lines
536 B
C
|
#ifndef _ASM_IO_64_NONATOMIC_HI_LO_H_
|
||
|
|
#define _ASM_IO_64_NONATOMIC_HI_LO_H_
|
||
|
|
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <asm-generic/int-ll64.h>
|
||
|
|
|
||
|
|
#ifndef readq
|
||
|
|
static inline __u64 readq(const volatile void __iomem *addr)
|
||
|
|
{
|
||
|
|
const volatile u32 __iomem *p = addr;
|
||
|
|
u32 low, high;
|
||
|
|
|
||
|
|
high = readl(p + 1);
|
||
|
|
low = readl(p);
|
||
|
|
|
||
|
|
return low + ((u64)high << 32);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef writeq
|
||
|
|
static inline void writeq(__u64 val, volatile void __iomem *addr)
|
||
|
|
{
|
||
|
|
writel(val >> 32, addr + 4);
|
||
|
|
writel(val, addr);
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* _ASM_IO_64_NONATOMIC_HI_LO_H_ */
|