#ifndef _ASM_I386_DMA_MAPPING_H
#define _ASM_I386_DMA_MAPPING_H
+#include <linux/mm.h>
+
#include <asm/cache.h>
+#include <asm/io.h>
+#include <asm/scatterlist.h>
#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)
void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, int flag);
+ dma_addr_t *dma_handle, unsigned int __nocast flag);
void dma_free_coherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t dma_handle);
size_t size, enum dma_data_direction direction)
{
BUG_ON(direction == DMA_NONE);
- return (dma_addr_t)(page_to_pfn(page)) * PAGE_SIZE + offset;
+ return page_to_phys(page) + offset;
}
static inline void
flush_write_buffers();
}
+#define ARCH_HAS_DMA_DECLARE_COHERENT_MEMORY
+extern int
+dma_declare_coherent_memory(struct device *dev, dma_addr_t bus_addr,
+ dma_addr_t device_addr, size_t size, int flags);
+
+extern void
+dma_release_declared_memory(struct device *dev);
+
+extern void *
+dma_mark_declared_memory_occupied(struct device *dev,
+ dma_addr_t device_addr, size_t size);
+
#endif