/* * BK Id: SCCS/s.pci-dma.c 1.5 05/17/01 18:14:21 cort *//* * Copyright (C) 2000   Ani Joshi <ajoshi@unixbox.com> * * * Dynamic DMA mapping support. * * swiped from i386 * */#include <linux/types.h>#include <linux/mm.h>#include <linux/string.h>#include <linux/pci.h>#include <asm/io.h>void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,			   dma_addr_t *dma_handle){	void *ret;	int gfp = GFP_ATOMIC;	if (hwdev == NULL || hwdev->dma_mask != 0xffffffff)		gfp |= GFP_DMA;	ret = (void *)__get_free_pages(gfp, get_order(size));	if (ret != NULL) {		memset(ret, 0, size);		*dma_handle = virt_to_bus(ret);	}	return ret;}void pci_free_consistent(struct pci_dev *hwdev, size_t size,			 void *vaddr, dma_addr_t dma_handle){	free_pages((unsigned long)vaddr, get_order(size));}