*/
u32 lowest_consistent_map;
+ /* In order to deal with some buggy third-party PCI bridges that
+ * do wrong prefetching, we never mark valid mappings as invalid.
+ * Instead we point them at this dummy page.
+ */
+ unsigned long dummy_page;
+ unsigned long dummy_page_pa;
+
/* If PBM_NCLUSTERS is ever decreased to 4 or lower,
* or if largest supported page_table_sz * 8K goes above
* 2GB, you must increase the size of the type of
u32 dma_addr_mask;
};
+extern void pci_iommu_table_init(struct pci_iommu *, int);
+
/* This describes a PCI bus module's streaming buffer. */
struct pci_strbuf {
int strbuf_enabled; /* Present and using it? */