Added Magic Flag CU_MEMHOSTREGISTER_IOMEMRY

pio_test.cu

@@ -159,7 +159,7 @@ int main(int argc, char *argv[]) {
     if (manual_init) {
         /* initAssert (cuMemHostRegister (foobar, 0x1000, CU_MEMHOSTREGISTER_DEVICEMAP)); */
         /* initAssert (cuMemHostRegister (bar, 0x4, CU_MEMHOSTREGISTER_DEVICEMAP)); */
-        initAssert (cuMemHostRegister (test, 0x4, CU_MEMHOSTREGISTER_DEVICEMAP));
+        initAssert (cuMemHostRegister (test, 0x4, CU_MEMHOSTREGISTER_IOMEMORY));
         /* *(volatile int *)(test) = 0xdeadbeef; */
     }
     else {