RISCV_FENCE
#define __mb() RISCV_FENCE(iorw, iorw)
#define __rmb() RISCV_FENCE(ir, ir)
#define __wmb() RISCV_FENCE(ow, ow)
#define __smp_mb() RISCV_FENCE(rw, rw)
#define __smp_rmb() RISCV_FENCE(r, r)
#define __smp_wmb() RISCV_FENCE(w, w)
#define smp_mb__after_spinlock() RISCV_FENCE(iorw, iorw)
RISCV_FENCE(rw, w); \
RISCV_FENCE(r, rw); \
#define __io_pbr() RISCV_FENCE(io, i)
#define __io_par(v) RISCV_FENCE(i, ior)
#define __io_pbw() RISCV_FENCE(iow, o)
#define __io_paw() RISCV_FENCE(o, io)
#define __io_ar(v) RISCV_FENCE(i, ir)
#define __io_bw() RISCV_FENCE(w, o)
#define mmiowb() RISCV_FENCE(o, w)
RISCV_FENCE(w, o);
#define mb() RISCV_FENCE(iorw, iorw)
#define rmb() RISCV_FENCE(ir, ir)
#define wmb() RISCV_FENCE(ow, ow)
#define smp_mb() RISCV_FENCE(rw, rw)
#define smp_rmb() RISCV_FENCE(r, r)
#define smp_wmb() RISCV_FENCE(w, w)
RISCV_FENCE(rw, w); \
RISCV_FENCE(r, rw); \
#define rseq_smp_mb() RISCV_FENCE(rw, rw)
#define rseq_smp_rmb() RISCV_FENCE(r, r)
#define rseq_smp_wmb() RISCV_FENCE(w, w)
RISCV_FENCE(r, rw); \
RISCV_FENCE(rw, w); \