commit 8694c3bc847c12857edfb7dbb4e24e97b1e1861b
author Marc-André Lureau <marcandre.lureau@redhat.com> Mon Feb 26 09:12:11 2018 -0500
committer Kevin O'Connor <kevin@koconnor.net> Tue Feb 27 11:29:11 2018 -0500
tree a9e4e4774984b0f10276ac853620ccd05665425a
parent a3c93bd81df628a218b9363f13188367417baaec

x86: add readq()

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Tested-by: Stefan Berger <stefanb@linux.vnet.ibm.com>

src/x86.h

diff --git a/src/x86.h b/src/x86.h
index 4aea65c..c7bb60d 100644
--- a/src/x86.h
+++ b/src/x86.h
@@ -211,6 +211,11 @@
     barrier();
     *(volatile u8 *)addr = val;
 }
+static inline u64 readq(const void *addr) {
+    u64 val = *(volatile const u64 *)addr;
+    barrier();
+    return val;
+}
 static inline u32 readl(const void *addr) {
     u32 val = *(volatile const u32 *)addr;
     barrier();