-#define readb(a) __arch_getb(a)
-#define readw(a) __arch_getw(a)
-#define readl(a) __arch_getl(a)
+#define writeb(v,c) ({ u8 __v = v; __iowmb(); __arch_putb(__v,c); __v; })
+#define writew(v,c) ({ u16 __v = v; __iowmb(); __arch_putw(__v,c); __v; })
+#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
+#define writeq(v,c) ({ u64 __v = v; __iowmb(); __arch_putq(__v,c); __v; })
+
+#define readb(c) ({ u8 __v = __arch_getb(c); __iormb(); __v; })
+#define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; })
+#define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
+#define readq(c) ({ u64 __v = __arch_getq(c); __iormb(); __v; })