X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fasm-alpha%2Fdma-mapping.h;h=75a1aff5b57b2980ec7c8e46a7367615cf0b41d6;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=e7e16901f686be2157f108abaffb00ec8aade02b;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/include/asm-alpha/dma-mapping.h b/include/asm-alpha/dma-mapping.h
index e7e16901f..75a1aff5b 100644
--- a/include/asm-alpha/dma-mapping.h
+++ b/include/asm-alpha/dma-mapping.h
@@ -1 +1,69 @@
-#include <asm-generic/dma-mapping.h>
+#ifndef _ALPHA_DMA_MAPPING_H
+#define _ALPHA_DMA_MAPPING_H
+
+
+#ifdef CONFIG_PCI
+
+#include <linux/pci.h>
+
+#define dma_map_single(dev, va, size, dir)		\
+		pci_map_single(alpha_gendev_to_pci(dev), va, size, dir)
+#define dma_unmap_single(dev, addr, size, dir)		\
+		pci_unmap_single(alpha_gendev_to_pci(dev), addr, size, dir)
+#define dma_alloc_coherent(dev, size, addr, gfp)	\
+		pci_alloc_consistent(alpha_gendev_to_pci(dev), size, addr)
+#define dma_free_coherent(dev, size, va, addr)		\
+		pci_free_consistent(alpha_gendev_to_pci(dev), size, va, addr)
+#define dma_map_page(dev, page, off, size, dir)		\
+		pci_map_page(alpha_gendev_to_pci(dev), page, off, size, dir)
+#define dma_unmap_page(dev, addr, size, dir)		\
+		pci_unmap_page(alpha_gendev_to_pci(dev), addr, size, dir)
+#define dma_map_sg(dev, sg, nents, dir)			\
+		pci_map_sg(alpha_gendev_to_pci(dev), sg, nents, dir)
+#define dma_unmap_sg(dev, sg, nents, dir)		\
+		pci_unmap_sg(alpha_gendev_to_pci(dev), sg, nents, dir)
+#define dma_supported(dev, mask)			\
+		pci_dma_supported(alpha_gendev_to_pci(dev), mask)
+#define dma_mapping_error(addr)				\
+		pci_dma_mapping_error(addr)
+
+#else	/* no PCI - no IOMMU. */
+
+struct scatterlist;
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			 dma_addr_t *dma_handle, gfp_t gfp);
+int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+	       enum dma_data_direction direction);
+
+#define dma_free_coherent(dev, size, va, addr)		\
+		free_pages((unsigned long)va, get_order(size))
+#define dma_supported(dev, mask)		(mask < 0x00ffffffUL ? 0 : 1)
+#define dma_map_single(dev, va, size, dir)	virt_to_phys(va)
+#define dma_map_page(dev, page, off, size, dir)	(page_to_pa(page) + off)
+
+#define dma_unmap_single(dev, addr, size, dir)	((void)0)
+#define dma_unmap_page(dev, addr, size, dir)	((void)0)
+#define dma_unmap_sg(dev, sg, nents, dir)	((void)0)
+
+#define dma_mapping_error(addr)  (0)
+
+#endif	/* !CONFIG_PCI */
+
+#define dma_alloc_noncoherent(d, s, h, f)	dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h)	dma_free_coherent(d, s, v, h)
+#define dma_is_consistent(d, h)			(1)
+
+int dma_set_mask(struct device *dev, u64 mask);
+
+#define dma_sync_single_for_cpu(dev, addr, size, dir)	  ((void)0)
+#define dma_sync_single_for_device(dev, addr, size, dir)  ((void)0)
+#define dma_sync_single_range(dev, addr, off, size, dir)  ((void)0)
+#define dma_sync_sg_for_cpu(dev, sg, nents, dir)	  ((void)0)
+#define dma_sync_sg_for_device(dev, sg, nents, dir)	  ((void)0)
+#define dma_cache_sync(dev, va, size, dir)		  ((void)0)
+#define dma_sync_single_range_for_cpu(dev, addr, offset, size, dir)	((void)0)
+#define dma_sync_single_range_for_device(dev, addr, offset, size, dir)	((void)0)
+
+#define dma_get_cache_alignment()			  L1_CACHE_BYTES
+
+#endif	/* _ALPHA_DMA_MAPPING_H */