diff options
Diffstat (limited to 'arch/riscv/include/asm/barrier.h')
| -rw-r--r-- | arch/riscv/include/asm/barrier.h | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h index 183534b7c39b..773c4e039cd7 100644 --- a/arch/riscv/include/asm/barrier.h +++ b/arch/riscv/include/asm/barrier.h @@ -38,29 +38,6 @@ #define smp_rmb() RISCV_FENCE(r,r) #define smp_wmb() RISCV_FENCE(w,w) -/* - * These fences exist to enforce ordering around the relaxed AMOs. The - * documentation defines that - * " - * atomic_fetch_add(); - * is equivalent to: - * smp_mb__before_atomic(); - * atomic_fetch_add_relaxed(); - * smp_mb__after_atomic(); - * " - * So we emit full fences on both sides. - */ -#define __smb_mb__before_atomic() smp_mb() -#define __smb_mb__after_atomic() smp_mb() - -/* - * These barriers prevent accesses performed outside a spinlock from being moved - * inside a spinlock. Since RISC-V sets the aq/rl bits on our spinlock only - * enforce release consistency, we need full fences here. - */ -#define smb_mb__before_spinlock() smp_mb() -#define smb_mb__after_spinlock() smp_mb() - #include <asm-generic/barrier.h> #endif /* __ASSEMBLY__ */ |
