diff options
Diffstat (limited to 'arch/riscv/include/asm/mmio.h')
| -rw-r--r-- | arch/riscv/include/asm/mmio.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/mmio.h b/arch/riscv/include/asm/mmio.h index 4c58ee7f95ecfa..06cadfd7a237ac 100644 --- a/arch/riscv/include/asm/mmio.h +++ b/arch/riscv/include/asm/mmio.h @@ -12,6 +12,7 @@ #define _ASM_RISCV_MMIO_H #include <linux/types.h> +#include <asm/fence.h> #include <asm/mmiowb.h> /* Generic IO read/write. These perform native-endian accesses. */ @@ -131,8 +132,8 @@ static inline u64 __raw_readq(const volatile void __iomem *addr) * doesn't define any ordering between the memory space and the I/O space. */ #define __io_br() do {} while (0) -#define __io_ar(v) ({ __asm__ __volatile__ ("fence i,ir" : : : "memory"); }) -#define __io_bw() ({ __asm__ __volatile__ ("fence w,o" : : : "memory"); }) +#define __io_ar(v) RISCV_FENCE(i, ir) +#define __io_bw() RISCV_FENCE(w, o) #define __io_aw() mmiowb_set_pending() #define readb(c) ({ u8 __v; __io_br(); __v = readb_cpu(c); __io_ar(__v); __v; }) |