264 static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr,  in gart_unmap_page()  argument
272 	if (dma_addr < iommu_bus_base + EMERGENCY_PAGES*PAGE_SIZE ||  in gart_unmap_page()
273 	    dma_addr >= iommu_bus_base + iommu_size)  in gart_unmap_page()
276 	iommu_page = (dma_addr - iommu_bus_base)>>PAGE_SHIFT;  in gart_unmap_page()
277 	npages = iommu_num_pages(dma_addr, size, PAGE_SIZE);  in gart_unmap_page()
478 gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,  in gart_alloc_coherent()  argument
497 			*dma_addr = paddr;  in gart_alloc_coherent()
502 		return dma_generic_alloc_coherent(dev, size, dma_addr, flag,  in gart_alloc_coherent()
511 		   dma_addr_t dma_addr, unsigned long attrs)  in gart_free_coherent()  argument
513 	gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, 0);  in gart_free_coherent()
514 	dma_generic_free_coherent(dev, size, vaddr, dma_addr, attrs);  in gart_free_coherent()
517 static int gart_mapping_error(struct device *dev, dma_addr_t dma_addr)  in gart_mapping_error()  argument
519 	return (dma_addr == bad_dma_addr);  in gart_mapping_error()