[xen staging] xen/riscv: introduces acquire, release and full barriers

[patchbot@xxxxxxx]

commit 91ed57339129cd95f4764792be21718faeb420f2
Author:     Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
AuthorDate: Wed Mar 6 10:18:33 2024 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Mar 6 10:18:33 2024 +0100

    xen/riscv: introduces acquire, release and full barriers
    
    Signed-off-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/riscv/include/asm/fence.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/xen/arch/riscv/include/asm/fence.h 
b/xen/arch/riscv/include/asm/fence.h
new file mode 100644
index 0000000000..27f46fa897
--- /dev/null
+++ b/xen/arch/riscv/include/asm/fence.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_RISCV_FENCE_H
+#define _ASM_RISCV_FENCE_H
+
+#define RISCV_ACQUIRE_BARRIER   "\tfence r , rw\n"
+#define RISCV_RELEASE_BARRIER   "\tfence rw, w\n"
+#define RISCV_FULL_BARRIER      "\tfence rw, rw\n"
+
+#endif /* _ASM_RISCV_FENCE_H */
--
generated by git-patchbot for /home/xen/git/xen.git#staging