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>

6 files changed, 26 insertions, 15 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;
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index eeacb3a52ca1..3b7078453e7f 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -173,7 +173,8 @@ static void invalidate_tce_cache(struct cbe_iommu *iommu, unsigned long *pte,
 }
 
 static void tce_build_cell(struct iommu_table *tbl, long index, long npages,
-                unsigned long uaddr, enum dma_data_direction direction)
+                unsigned long uaddr, enum dma_data_direction direction,
+                struct dma_attrs *attrs)
 {
         int i;
         unsigned long *io_pte, base_pte;
@@ -519,7 +520,7 @@ cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
 
         __set_bit(0, window->table.it_map);
         tce_build_cell(&window->table, window->table.it_offset, 1,
-                       (unsigned long)iommu->pad_page, DMA_TO_DEVICE);
+                       (unsigned long)iommu->pad_page, DMA_TO_DEVICE, NULL);
         window->table.it_hint = window->table.it_blocksize;
 
         return window;
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index ab5d8687c3cf..bc818e4e2033 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -42,7 +42,8 @@
 #include <asm/iseries/iommu.h>
 
 static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages,
-                unsigned long uaddr, enum dma_data_direction direction)
+                unsigned long uaddr, enum dma_data_direction direction,
+                struct dma_attrs *attrs)
 {
         u64 rc;
         u64 tce, rpn;
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 86967bdd8774..70541b7a5013 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -85,7 +85,8 @@ static int iommu_table_iobmap_inited;
 
 static void iobmap_build(struct iommu_table *tbl, long index,
                          long npages, unsigned long uaddr,
-                         enum dma_data_direction direction)
+                         enum dma_data_direction direction,
+                         struct dma_attrs *attrs)
 {
         u32 *ip;
         u32 rpn;
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 9a12908510fb..5377dd4b849a 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -50,7 +50,8 @@
 
 static void tce_build_pSeries(struct iommu_table *tbl, long index,
                               long npages, unsigned long uaddr,
-                              enum dma_data_direction direction)
+                              enum dma_data_direction direction,
+                              struct dma_attrs *attrs)
 {
         u64 proto_tce;
         u64 *tcep;
@@ -95,7 +96,8 @@ static unsigned long tce_get_pseries(struct iommu_table *tbl, long index)
 
 static void tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
                                 long npages, unsigned long uaddr,
-                                enum dma_data_direction direction)
+                                enum dma_data_direction direction,
+                                struct dma_attrs *attrs)
 {
         u64 rc;
         u64 proto_tce, tce;
@@ -127,7 +129,8 @@ static DEFINE_PER_CPU(u64 *, tce_page) = NULL;
 
 static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
                                      long npages, unsigned long uaddr,
-                                     enum dma_data_direction direction)
+                                     enum dma_data_direction direction,
+                                     struct dma_attrs *attrs)
 {
         u64 rc;
         u64 proto_tce;
@@ -136,7 +139,8 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
         long l, limit;
 
         if (npages == 1) {
-                tce_build_pSeriesLP(tbl, tcenum, npages, uaddr, direction);
+                tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
+                                    direction, attrs);
                 return;
         }
 
@@ -150,7 +154,7 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
                 /* If allocation fails, fall back to the loop implementation */
                 if (!tcep) {
                         tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
-                                            direction);
+                                            direction, attrs);
                         return;
                 }
                 __get_cpu_var(tce_page) = tcep;
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 005c2ecf976f..de8c8b542cfa 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -149,7 +149,8 @@ static void dart_flush(struct iommu_table *tbl)
 
 static void dart_build(struct iommu_table *tbl, long index,
                        long npages, unsigned long uaddr,
-                       enum dma_data_direction direction)
+                       enum dma_data_direction direction,
+                       struct dma_attrs *attrs)
 {
         unsigned int *dp;
         unsigned int rpn;