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-rw-r--r--arch/powerpc/platforms/cell/iommu.c37
-rw-r--r--arch/powerpc/platforms/iseries/iommu.c7
-rw-r--r--arch/powerpc/platforms/ps3/system-bus.c36
3 files changed, 41 insertions, 39 deletions
diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c
index ef92e714621..3168272ab0d 100644
--- a/arch/powerpc/platforms/cell/iommu.c
+++ b/arch/powerpc/platforms/cell/iommu.c
@@ -593,31 +593,30 @@ static void dma_fixed_free_coherent(struct device *dev, size_t size,
dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle);
}
-static dma_addr_t dma_fixed_map_single(struct device *dev, void *ptr,
- size_t size,
- enum dma_data_direction direction,
- struct dma_attrs *attrs)
+static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
- return dma_direct_ops.map_single(dev, ptr, size, direction,
- attrs);
+ return dma_direct_ops.map_page(dev, page, offset, size,
+ direction, attrs);
else
- return iommu_map_single(dev, cell_get_iommu_table(dev), ptr,
- size, device_to_mask(dev), direction,
- attrs);
+ return iommu_map_page(dev, cell_get_iommu_table(dev), page,
+ offset, size, device_to_mask(dev),
+ direction, attrs);
}
-static void dma_fixed_unmap_single(struct device *dev, dma_addr_t dma_addr,
- size_t size,
- enum dma_data_direction direction,
- struct dma_attrs *attrs)
+static void dma_fixed_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
if (iommu_fixed_is_weak == dma_get_attr(DMA_ATTR_WEAK_ORDERING, attrs))
- dma_direct_ops.unmap_single(dev, dma_addr, size, direction,
- attrs);
+ dma_direct_ops.unmap_page(dev, dma_addr, size, direction,
+ attrs);
else
- iommu_unmap_single(cell_get_iommu_table(dev), dma_addr, size,
- direction, attrs);
+ iommu_unmap_page(cell_get_iommu_table(dev), dma_addr, size,
+ direction, attrs);
}
static int dma_fixed_map_sg(struct device *dev, struct scatterlist *sg,
@@ -652,12 +651,12 @@ static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask);
struct dma_mapping_ops dma_iommu_fixed_ops = {
.alloc_coherent = dma_fixed_alloc_coherent,
.free_coherent = dma_fixed_free_coherent,
- .map_single = dma_fixed_map_single,
- .unmap_single = dma_fixed_unmap_single,
.map_sg = dma_fixed_map_sg,
.unmap_sg = dma_fixed_unmap_sg,
.dma_supported = dma_fixed_dma_supported,
.set_dma_mask = dma_set_mask_and_switch,
+ .map_page = dma_fixed_map_page,
+ .unmap_page = dma_fixed_unmap_page,
};
static void cell_dma_dev_setup_fixed(struct device *dev);
diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index bb464d1211b..bbe828f1b88 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -215,14 +215,15 @@ EXPORT_SYMBOL_GPL(iseries_hv_free);
dma_addr_t iseries_hv_map(void *vaddr, size_t size,
enum dma_data_direction direction)
{
- return iommu_map_single(NULL, &vio_iommu_table, vaddr, size,
- DMA_32BIT_MASK, direction, NULL);
+ return iommu_map_page(NULL, &vio_iommu_table, virt_to_page(vaddr),
+ (unsigned long)vaddr % PAGE_SIZE, size,
+ DMA_32BIT_MASK, direction, NULL);
}
void iseries_hv_unmap(dma_addr_t dma_handle, size_t size,
enum dma_data_direction direction)
{
- iommu_unmap_single(&vio_iommu_table, dma_handle, size, direction, NULL);
+ iommu_unmap_page(&vio_iommu_table, dma_handle, size, direction, NULL);
}
void __init iommu_vio_init(void)
diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
index a789bf58ca8..661e9f77ebf 100644
--- a/arch/powerpc/platforms/ps3/system-bus.c
+++ b/arch/powerpc/platforms/ps3/system-bus.c
@@ -555,18 +555,19 @@ static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr,
}
/* Creates TCEs for a user provided buffer. The user buffer must be
- * contiguous real kernel storage (not vmalloc). The address of the buffer
- * passed here is the kernel (virtual) address of the buffer. The buffer
- * need not be page aligned, the dma_addr_t returned will point to the same
- * byte within the page as vaddr.
+ * contiguous real kernel storage (not vmalloc). The address passed here
+ * comprises a page address and offset into that page. The dma_addr_t
+ * returned will point to the same byte within the page as was passed in.
*/
-static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
- enum dma_data_direction direction, struct dma_attrs *attrs)
+static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int result;
unsigned long bus_addr;
+ void *ptr = page_address(page) + offset;
result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size,
&bus_addr,
@@ -580,15 +581,16 @@ static dma_addr_t ps3_sb_map_single(struct device *_dev, void *ptr, size_t size,
return bus_addr;
}
-static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
- size_t size,
- enum dma_data_direction direction,
- struct dma_attrs *attrs)
+static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
int result;
unsigned long bus_addr;
u64 iopte_flag;
+ void *ptr = page_address(page) + offset;
iopte_flag = IOPTE_M;
switch (direction) {
@@ -615,7 +617,7 @@ static dma_addr_t ps3_ioc0_map_single(struct device *_dev, void *ptr,
return bus_addr;
}
-static void ps3_unmap_single(struct device *_dev, dma_addr_t dma_addr,
+static void ps3_unmap_page(struct device *_dev, dma_addr_t dma_addr,
size_t size, enum dma_data_direction direction, struct dma_attrs *attrs)
{
struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
@@ -689,21 +691,21 @@ static int ps3_dma_supported(struct device *_dev, u64 mask)
static struct dma_mapping_ops ps3_sb_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
- .map_single = ps3_sb_map_single,
- .unmap_single = ps3_unmap_single,
.map_sg = ps3_sb_map_sg,
.unmap_sg = ps3_sb_unmap_sg,
- .dma_supported = ps3_dma_supported
+ .dma_supported = ps3_dma_supported,
+ .map_page = ps3_sb_map_page,
+ .unmap_page = ps3_unmap_page,
};
static struct dma_mapping_ops ps3_ioc0_dma_ops = {
.alloc_coherent = ps3_alloc_coherent,
.free_coherent = ps3_free_coherent,
- .map_single = ps3_ioc0_map_single,
- .unmap_single = ps3_unmap_single,
.map_sg = ps3_ioc0_map_sg,
.unmap_sg = ps3_ioc0_unmap_sg,
- .dma_supported = ps3_dma_supported
+ .dma_supported = ps3_dma_supported,
+ .map_page = ps3_ioc0_map_page,
+ .unmap_page = ps3_unmap_page,
};
/**