# HG changeset patch
# User yamahata@xxxxxxxxxxxxx
# Date 1184318362 -32400
# Node ID 7cd88e3183ffb449b0bdbd5fbdf1bfe2b501fb9a
# Parent  e35c8f3cd28719337def64cae0404e333b840274
ia64 counter part of 99:f15643dab1ca.
PATCHNAME: ia64_counter_part_swiotlb_fix

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>

diff -r e35c8f3cd287 -r 7cd88e3183ff arch/ia64/xen/swiotlb.c
--- a/arch/ia64/xen/swiotlb.c	Wed Jul 11 17:19:09 2007 +0900
+++ b/arch/ia64/xen/swiotlb.c	Fri Jul 13 18:19:22 2007 +0900
@@ -336,6 +336,7 @@ map_single(struct device *hwdev, char *b
 	unsigned long flags;
 	char *dma_addr;
 	unsigned int nslots, stride, index, wrap;
+	char *slot_buf;
 	int i;
 
 	/*
@@ -402,7 +403,11 @@ map_single(struct device *hwdev, char *b
 	 * This is needed when we sync the memory.  Then we sync the buffer if
 	 * needed.
 	 */
-	io_tlb_orig_addr[index] = buffer;
+	slot_buf = buffer;
+	for (i = 0; i < nslots; i++) {
+		io_tlb_orig_addr[index + i] = slot_buf;
+		slot_buf += 1 << IO_TLB_SHIFT;
+	}
 	if (dir == DMA_TO_DEVICE || dir == DMA_BIDIRECTIONAL)
 		memcpy(dma_addr, buffer, size);