vserver 1.9.3

[linux-2.6.git] / include / asm-alpha / dma-mapping.h

diff --git a/include/asm-alpha/dma-mapping.h b/include/asm-alpha/dma-mapping.h
index e7e1690..0faad45 100644 (file)
--- a/include/asm-alpha/dma-mapping.h
+++ b/include/asm-alpha/dma-mapping.h
@@ -1 +1,63 @@
-#include <asm-generic/dma-mapping.h>
+#ifndef _ALPHA_DMA_MAPPING_H
+#define _ALPHA_DMA_MAPPING_H
+
+#include <linux/config.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_single(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)
+
+#else  /* no PCI - no IOMMU. */
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+                        dma_addr_t *dma_handle, int 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) do { } while (0)
+#define dma_unmap_page(dev, addr, size, dir)   do { } while (0)
+#define dma_unmap_sg(dev, sg, nents, dir)      do { } while (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(dev)                 (1)
+
+int dma_set_mask(struct device *dev, u64 mask);
+
+#define dma_sync_single_for_cpu(dev, addr, size, dir)    do { } while (0)
+#define dma_sync_single_for_device(dev, addr, size, dir)  do { } while (0)
+#define dma_sync_single_range(dev, addr, off, size, dir)  do { } while (0)
+#define dma_sync_sg_for_cpu(dev, sg, nents, dir)         do { } while (0)
+#define dma_sync_sg_for_device(dev, sg, nents, dir)      do { } while (0)
+#define dma_cache_sync(va, size, dir)                    do { } while (0)
+
+#define dma_get_cache_alignment()                        L1_CACHE_BYTES
+
+#endif /* _ALPHA_DMA_MAPPING_H */