powerpc/dma: Use the struct dma_attrs in iommu code

Update iommu_alloc() to take the struct dma_attrs and pass them on to
tce_build(). This change propagates down to the tce_build functions of
all the platforms.

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>

1 files changed, 8 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 8c68ee9e5d1c..2385f68c1751 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -186,7 +186,8 @@ static unsigned long iommu_range_alloc(struct device *dev,
 static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
                               void *page, unsigned int npages,
                               enum dma_data_direction direction,
-                              unsigned long mask, unsigned int align_order)
+                              unsigned long mask, unsigned int align_order,
+                              struct dma_attrs *attrs)
 {
         unsigned long entry, flags;
         dma_addr_t ret = DMA_ERROR_CODE;
@@ -205,7 +206,7 @@ static dma_addr_t iommu_alloc(struct device *dev, struct iommu_table *tbl,
 
         /* Put the TCEs in the HW table */
         ppc_md.tce_build(tbl, entry, npages, (unsigned long)page & IOMMU_PAGE_MASK,
-                         direction);
+                         direction, attrs);
 
 
         /* Flush/invalidate TLB caches if necessary */
@@ -336,7 +337,8 @@ int iommu_map_sg(struct device *dev, struct iommu_table *tbl,
                             npages, entry, dma_addr);
 
                 /* Insert into HW table */
-                ppc_md.tce_build(tbl, entry, npages, vaddr & IOMMU_PAGE_MASK, direction);
+                ppc_md.tce_build(tbl, entry, npages, vaddr & IOMMU_PAGE_MASK,
+                                 direction, attrs);
 
                 /* If we are in an open segment, try merging */
                 if (segstart != s) {
@@ -573,7 +575,8 @@ dma_addr_t iommu_map_single(struct device *dev, struct iommu_table *tbl,
                         align = PAGE_SHIFT - IOMMU_PAGE_SHIFT;
 
                 dma_handle = iommu_alloc(dev, tbl, vaddr, npages, direction,
-                                         mask >> IOMMU_PAGE_SHIFT, align);
+                                         mask >> IOMMU_PAGE_SHIFT, align,
+                                         attrs);
                 if (dma_handle == DMA_ERROR_CODE) {
                         if (printk_ratelimit())  {
                                 printk(KERN_INFO "iommu_alloc failed, "
@@ -642,7 +645,7 @@ void *iommu_alloc_coherent(struct device *dev, struct iommu_table *tbl,
         nio_pages = size >> IOMMU_PAGE_SHIFT;
         io_order = get_iommu_order(size);
         mapping = iommu_alloc(dev, tbl, ret, nio_pages, DMA_BIDIRECTIONAL,
-                              mask >> IOMMU_PAGE_SHIFT, io_order);
+                              mask >> IOMMU_PAGE_SHIFT, io_order, NULL);
         if (mapping == DMA_ERROR_CODE) {
                 free_pages((unsigned long)ret, order);
                 return NULL;