This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / include / asm-i386 / mach-xen / asm / scatterlist.h

diff --git a/include/asm-i386/mach-xen/asm/scatterlist.h b/include/asm-i386/mach-xen/asm/scatterlist.h
new file mode 100644 (file)
index 0000000..bec2ff3
--- /dev/null
+++ b/include/asm-i386/mach-xen/asm/scatterlist.h
@@ -0,0 +1,22 @@
+#ifndef _I386_SCATTERLIST_H
+#define _I386_SCATTERLIST_H
+
+struct scatterlist {
+    struct page                *page;
+    unsigned int       offset;
+    unsigned int       length;
+    dma_addr_t         dma_address;
+    unsigned int       dma_length;
+};
+
+/* These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns.
+ */
+#define sg_dma_address(sg)     ((sg)->dma_address)
+#define sg_dma_len(sg)         ((sg)->dma_length)
+
+#define ISA_DMA_THRESHOLD (0x00ffffff)
+
+#endif /* !(_I386_SCATTERLIST_H) */