*/
unsigned long dma_direct_offset;
+static unsigned long get_dma_direct_offset(struct device *dev)
+{
+ return (unsigned long)dev->archdata.dma_data;
+}
+
static void *dma_direct_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
return NULL;
ret = page_address(page);
memset(ret, 0, size);
- *dma_handle = virt_to_abs(ret) | dma_direct_offset;
+ *dma_handle = virt_to_abs(ret) + get_dma_direct_offset(dev);
return ret;
}
size_t size,
enum dma_data_direction direction)
{
- return virt_to_abs(ptr) | dma_direct_offset;
+ return virt_to_abs(ptr) + get_dma_direct_offset(dev);
}
static void dma_direct_unmap_single(struct device *dev, dma_addr_t dma_addr,
{
}
-static int dma_direct_map_sg(struct device *dev, struct scatterlist *sg,
+static int dma_direct_map_sg(struct device *dev, struct scatterlist *sgl,
int nents, enum dma_data_direction direction)
{
+ struct scatterlist *sg;
int i;
- for (i = 0; i < nents; i++, sg++) {
- sg->dma_address = (page_to_phys(sg->page) + sg->offset) |
- dma_direct_offset;
+ for_each_sg(sgl, sg, nents, i) {
+ sg->dma_address = sg_phys(sg) + get_dma_direct_offset(dev);
sg->dma_length = sg->length;
}