X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-sparc64%2Fpbm.h;h=92999631c81966a7a310d6b718955b83fd378fbe;hb=c7b5ebbddf7bcd3651947760f423e3783bbe6573;hp=0cddbd2bf2c6e1caf62bd9fcce1e4f9ef8e70821;hpb=a2c21200f1c81b08cb55e417b68150bba439b646;p=linux-2.6.git

diff --git a/include/asm-sparc64/pbm.h b/include/asm-sparc64/pbm.h
index 0cddbd2bf..92999631c 100644
--- a/include/asm-sparc64/pbm.h
+++ b/include/asm-sparc64/pbm.h
@@ -70,6 +70,13 @@ struct pci_iommu {
 	 */
 	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
@@ -93,6 +100,8 @@ struct pci_iommu {
 	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? */