#include <linux/list.h>
#include <linux/pci.h>
#include <linux/highmem.h>
+#include <linux/scatterlist.h>
#include <asm/io.h>
void *dma_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t gfp)
return ret;
}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
void dma_free_coherent(struct device *hwdev, size_t size, void *vaddr, dma_addr_t dma_handle)
{
consistent_free(vaddr);
}
+EXPORT_SYMBOL(dma_free_coherent);
+
/*
* Map a single buffer of the indicated size for DMA in streaming mode.
* The 32-bit bus address to use is returned.
return virt_to_bus(ptr);
}
+EXPORT_SYMBOL(dma_map_single);
+
/*
* Map a set of buffers described by scatterlist in streaming
* mode for DMA. This is the scather-gather version of the
- * above pci_map_single interface. Here the scatter gather list
+ * above dma_map_single interface. Here the scatter gather list
* elements are each tagged with the appropriate dma address
* and length. They are obtained via sg_dma_{address,length}(SG).
*
* The routine returns the number of addr/length pairs actually
* used, at most nents.
*
- * Device ownership issues as mentioned above for pci_map_single are
+ * Device ownership issues as mentioned above for dma_map_single are
* the same here.
*/
int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
dampr2 = __get_DAMPR(2);
for (i = 0; i < nents; i++) {
- vaddr = kmap_atomic(sg[i].page, __KM_CACHE);
+ vaddr = kmap_atomic(sg_page(&sg[i]), __KM_CACHE);
frv_dcache_writeback((unsigned long) vaddr,
(unsigned long) vaddr + PAGE_SIZE);
return nents;
}
+EXPORT_SYMBOL(dma_map_sg);
+
+/*
+ * Map a single page of the indicated size for DMA in streaming mode.
+ * The 32-bit bus address to use is returned.
+ *
+ * Device ownership issues as mentioned above for dma_map_single are
+ * the same here.
+ */
dma_addr_t dma_map_page(struct device *dev, struct page *page, unsigned long offset,
size_t size, enum dma_data_direction direction)
{
flush_dcache_page(page);
return (dma_addr_t) page_to_phys(page) + offset;
}
+
+EXPORT_SYMBOL(dma_map_page);