#define flush_agp_mappings()
#define flush_agp_cache() mb()
+/*
+ * Page-protection value to be used for AGP memory mapped into kernel space. For
+ * platforms which use coherent AGP DMA, this can be PAGE_KERNEL. For others, it needs to
+ * be an uncached mapping (such as write-combining).
+ */
+#define PAGE_AGP PAGE_KERNEL_NOCACHE
+
#endif