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authorMark Nelson <markn@au1.ibm.com>2008-07-05 05:05:41 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-09 16:30:43 +1000
commitc8692362db3db3a6f644e05a477161d967430aac (patch)
treeb240cfe972dda9768fc330458da5667a7c15864f /arch/powerpc/kernel/iommu.c
parentfabb657005edbbcb0d13ee49a40f1f4b042a1d19 (diff)
downloadlinux-c8692362db3db3a6f644e05a477161d967430aac.tar.gz
powerpc/dma: Add struct iommu_table argument to iommu_map_sg()
Make iommu_map_sg take a struct iommu_table. It did so before commit
740c3ce66700640a6e6136ff679b067e92125794 (iommu sg merging: ppc: make
iommu respect the segment size limits).

This stops the function looking in the archdata.dma_data for the iommu
table because in the future it will be called with a device that has
no table there.

This also has the nice side effect of making iommu_map_sg() match the
other map functions.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/iommu.c')
-rw-r--r--arch/powerpc/kernel/iommu.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 0c663669bc32..ccf00fe9cee6 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -267,11 +267,10 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
 	spin_unlock_irqrestore(&(tbl->it_lock), flags);
 }
 
-int iommu_map_sg(struct device *dev, struct scatterlist *sglist,
-		 int nelems, unsigned long mask,
-		 enum dma_data_direction direction)
+int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
+		 struct scatterlist *sglist, int nelems,
+		 unsigned long mask, enum dma_data_direction direction)
 {
-	struct iommu_table *tbl = dev->archdata.dma_data;
 	dma_addr_t dma_next = 0, dma_addr;
 	unsigned long flags;
 	struct scatterlist *s, *outs, *segstart;