Add a riscv define.

Submitted by: Yukishige Shibata <y-shibat@mtd.biglobe.ne.jp>
svn path=/head/; revision=301123
2016-06-01 14:03:13 +00:00 · 2016-06-01 14:03:13 +00:00 · b217eb9314 · 2020-12-20 02:59:44 +00:00
commit b217eb9314
parent 5c4c3d9285
1 changed files with 2 additions and 0 deletions
--- a/sys/dev/sym/sym_hipd.c
+++ b/sys/dev/sym/sym_hipd.c
@ -138,6 +138,8 @@ typedef	u_int32_t u32;
 #define MEMORY_BARRIER()	dmb()
 #elif	defined	__aarch64__
 #define MEMORY_BARRIER()	dmb(sy)
+#elif	defined __riscv__
+#define MEMORY_BARRIER()	fence()
 #else
 #error	"Not supported platform"
 #endif