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@@ -266,3 +266,84 @@ dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
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{
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/*
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* No need to do anything since the CPU isn't supposed to
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+ * touch this memory after we flushed it at mapping- or
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+ * sync-for-device time.
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+ */
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+}
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+
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+static inline void
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+dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
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+ size_t size, enum dma_data_direction direction)
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+{
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+ dma_cache_sync(dev, bus_to_virt(dma_handle), size, direction);
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+}
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+
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+static inline void
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+dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
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+ unsigned long offset, size_t size,
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+ enum dma_data_direction direction)
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+{
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+ /* just sync everything, that's all the pci API can do */
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+ dma_sync_single_for_cpu(dev, dma_handle, offset+size, direction);
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+}
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+
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+static inline void
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+dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
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+ unsigned long offset, size_t size,
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+ enum dma_data_direction direction)
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+{
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+ /* just sync everything, that's all the pci API can do */
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+ dma_sync_single_for_device(dev, dma_handle, offset+size, direction);
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+}
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+
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+/**
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+ * dma_sync_sg_for_cpu
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+ * @dev: valid struct device pointer, or NULL for ISA and EISA-like devices
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+ * @sg: list of buffers
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+ * @nents: number of buffers to map
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+ * @dir: DMA transfer direction
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+ *
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+ * Make physical memory consistent for a set of streaming
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+ * mode DMA translations after a transfer.
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+ *
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+ * The same as dma_sync_single_for_* but for a scatter-gather list,
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+ * same rules and usage.
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+ */
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+static inline void
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+dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
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+ int nents, enum dma_data_direction direction)
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+{
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+ /*
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+ * No need to do anything since the CPU isn't supposed to
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+ * touch this memory after we flushed it at mapping- or
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+ * sync-for-device time.
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+ */
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+}
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+
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+static inline void
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+dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
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+ int nents, enum dma_data_direction direction)
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+{
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+ int i;
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+
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+ for (i = 0; i < nents; i++) {
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+ dma_cache_sync(dev, sg_virt(&sg[i]), sg[i].length, direction);
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+ }
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+}
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+
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+/* Now for the API extensions over the pci_ one */
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+
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+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
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+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
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+
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+/* drivers/base/dma-mapping.c */
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+extern int dma_common_mmap(struct device *dev, struct vm_area_struct *vma,
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+ void *cpu_addr, dma_addr_t dma_addr, size_t size);
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+extern int dma_common_get_sgtable(struct device *dev, struct sg_table *sgt,
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+ void *cpu_addr, dma_addr_t dma_addr,
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+ size_t size);
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+
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+#define dma_mmap_coherent(d, v, c, h, s) dma_common_mmap(d, v, c, h, s)
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+#define dma_get_sgtable(d, t, v, h, s) dma_common_get_sgtable(d, t, v, h, s)
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+
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+#endif /* __ASM_AVR32_DMA_MAPPING_H */
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