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authorJan Andersson <jan.andersson@ieee.org>2007-01-25 00:10:10 +0100
committerAdrian Bunk <bunk@stusta.de>2007-01-25 00:10:10 +0100
commit1987ad05d5aaadd104dfe66b2caee35dc83b0b6f (patch)
treefbc2a95c768a401a465b58f42448f95b8c78a22b
parent0a55d471f11619490031ccbf834d9b9521d19681 (diff)
sparc32: add offset in pci_map_sg()
Add sg->offset to sg->dvma_address in pci_map_sg() on sparc32. Without the offset, transfers to buffers that do not begin on a page boundary will not work as expected. Signed-off-by: Jan Andersson <jan.andersson@ieee.org> Acked-By: David Miller <davem@davemloft.net>
-rw-r--r--arch/sparc/kernel/ioport.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index d39c9f206271..aa07df5bcffe 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -581,7 +581,8 @@ int pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, int nents,
/* IIep is write-through, not flushing. */
for (n = 0; n < nents; n++) {
if (page_address(sg->page) == NULL) BUG();
- sg->dvma_address = virt_to_phys(page_address(sg->page));
+ sg->dvma_address =
+ virt_to_phys(page_address(sg->page)) + sg->offset;
sg->dvma_length = sg->length;
sg++;
}