From c8692362db3db3a6f644e05a477161d967430aac Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Sat, 5 Jul 2008 05:05:41 +1000 Subject: 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 Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/dma_64.c | 2 +- arch/powerpc/kernel/iommu.c | 7 +++---- 2 files changed, 4 insertions(+), 5 deletions(-) (limited to 'arch/powerpc/kernel') diff --git a/arch/powerpc/kernel/dma_64.c b/arch/powerpc/kernel/dma_64.c index 3a317cb0636..739744508c6 100644 --- a/arch/powerpc/kernel/dma_64.c +++ b/arch/powerpc/kernel/dma_64.c @@ -68,7 +68,7 @@ static void dma_iommu_unmap_single(struct device *dev, dma_addr_t dma_handle, static int dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist, int nelems, enum dma_data_direction direction) { - return iommu_map_sg(dev, sglist, nelems, + return iommu_map_sg(dev, dev->archdata.dma_data, sglist, nelems, device_to_mask(dev), direction); } diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index 0c663669bc3..ccf00fe9cee 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; -- cgit v1.2.3