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/iommu.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/kernel/iommu.c') 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 From 3affedc4e1ce837033b6c5e9289d2ce2f5a62d31 Mon Sep 17 00:00:00 2001 From: Mark Nelson Date: Sat, 5 Jul 2008 05:05:42 +1000 Subject: powerpc/dma: implement new dma_*map*_attrs() interfaces Update powerpc to use the new dma_*map*_attrs() interfaces. In doing so update struct dma_mapping_ops to accept a struct dma_attrs and propagate these changes through to all users of the code (generic IOMMU and the 64bit DMA code, and the iseries and ps3 platform code). The old dma_*map_*() interfaces are reimplemented as calls to the corresponding new interfaces. Signed-off-by: Mark Nelson Signed-off-by: Arnd Bergmann Acked-by: Geoff Levand Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/iommu.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'arch/powerpc/kernel/iommu.c') diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c index ccf00fe9cee..8c68ee9e5d1 100644 --- a/arch/powerpc/kernel/iommu.c +++ b/arch/powerpc/kernel/iommu.c @@ -269,7 +269,8 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, int iommu_map_sg(struct device *dev, struct iommu_table *tbl, struct scatterlist *sglist, int nelems, - unsigned long mask, enum dma_data_direction direction) + unsigned long mask, enum dma_data_direction direction, + struct dma_attrs *attrs) { dma_addr_t dma_next = 0, dma_addr; unsigned long flags; @@ -411,7 +412,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl, void iommu_unmap_sg(struct iommu_table *tbl, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction) + int nelems, enum dma_data_direction direction, + struct dma_attrs *attrs) { struct scatterlist *sg; unsigned long flags; @@ -553,7 +555,7 @@ void iommu_free_table(struct iommu_table *tbl, const char *node_name) */ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl, void *vaddr, size_t size, unsigned long mask, - enum dma_data_direction direction) + enum dma_data_direction direction, struct dma_attrs *attrs) { dma_addr_t dma_handle = DMA_ERROR_CODE; unsigned long uaddr; @@ -586,7 +588,8 @@ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl, } void iommu_unmap_single(struct iommu_table *tbl, dma_addr_t dma_handle, - size_t size, enum dma_data_direction direction) + size_t size, enum dma_data_direction direction, + struct dma_attrs *attrs) { unsigned int npages; -- cgit v1.2.3