Signed-off-by: Oleksii Kurochko
---
Changes in V2:
- update definition of arch_lock_signal() to not violate cod style.
- update definition of arch_lock_signal_wmb() to use WMB aspect.
---
xen/arch/riscv/include/asm/spinlock.h | 15 +++
1 file changed, 15 insertions(+)
create mode 100644 xen/arch/riscv/include/asm/spinlock.h
diff --git a/xen/arch/riscv/include/asm/spinlock.h
b/xen/arch/riscv/include/asm/spinlock.h
new file mode 100644
index 00..bf45a7f005
--- /dev/null
+++ b/xen/arch/riscv/include/asm/spinlock.h
@@ -0,0 +1,15 @@
+#ifndef __ASM_RISCV_SPINLOCK_H
+#define __ASM_RISCV_SPINLOCK_H
+
+#define arch_lock_acquire_barrier() smp_mb()
+#define arch_lock_release_barrier() smp_mb()
+
+#define arch_lock_relax() cpu_relax()
+#define arch_lock_signal() ((void)0)
+#define arch_lock_signal_wmb() \
+({ \
+smp_wmb(); \
+arch_lock_signal(); \
+})
+
+#endif /* __ASM_RISCV_SPINLOCK_H */
--
2.42.0
