diff options
Diffstat (limited to 'arch/riscv/include/asm/io.h')
| -rw-r--r-- | arch/riscv/include/asm/io.h | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/riscv/include/asm/io.h b/arch/riscv/include/asm/io.h index 472814a..d01ed5b 100644 --- a/arch/riscv/include/asm/io.h +++ b/arch/riscv/include/asm/io.h @@ -10,6 +10,7 @@ #ifdef __KERNEL__ #include <linux/types.h> +#include <asm/barrier.h> #include <asm/byteorder.h> static inline void sync(void) @@ -91,13 +92,9 @@ static inline phys_addr_t virt_to_phys(void *vaddr) #define __raw_readl(a) __arch_getl(a) #define __raw_readq(a) __arch_getq(a) -/* - * TODO: The kernel offers some more advanced versions of barriers, it might - * have some advantages to use them instead of the simple one here. - */ -#define dmb() __asm__ __volatile__ ("" : : : "memory") -#define __iormb() dmb() -#define __iowmb() dmb() +#define dmb() mb() +#define __iormb() rmb() +#define __iowmb() wmb() static inline void writeb(u8 val, volatile void __iomem *addr) { |