+#define VM_PURGABLE_PURGE_ALL ((vm_purgable_t) 2) /* purge all volatile objects now */
+
+#define VM_PURGABLE_NO_AGING_SHIFT 16
+#define VM_PURGABLE_NO_AGING_MASK (0x1 << VM_PURGABLE_NO_AGING_SHIFT)
+#define VM_PURGABLE_NO_AGING (0x1 << VM_PURGABLE_NO_AGING_SHIFT)
+
+#define VM_PURGABLE_DEBUG_SHIFT 12
+#define VM_PURGABLE_DEBUG_MASK (0x3 << VM_PURGABLE_DEBUG_SHIFT)
+#define VM_PURGABLE_DEBUG_EMPTY (0x1 << VM_PURGABLE_DEBUG_SHIFT)
+#define VM_PURGABLE_DEBUG_FAULT (0x2 << VM_PURGABLE_DEBUG_SHIFT)