/* pci.h: FR-V specific PCI declarations * * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * - Derived from include/asm-m68k/pci.h * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */#ifndef ASM_PCI_H#define	ASM_PCI_H#include <linux/mm.h>#include <asm/scatterlist.h>#include <asm-generic/pci-dma-compat.h>#include <asm-generic/pci.h>struct pci_dev;#define pcibios_assign_all_busses()	0extern void pcibios_set_master(struct pci_dev *dev);extern void pcibios_penalize_isa_irq(int irq);#ifdef CONFIG_MMUextern void *consistent_alloc(gfp_t gfp, size_t size, dma_addr_t *dma_handle);extern void consistent_free(void *vaddr);extern void consistent_sync(void *vaddr, size_t size, int direction);extern void consistent_sync_page(struct page *page, unsigned long offset,				 size_t size, int direction);#endifextern void *pci_alloc_consistent(struct pci_dev *hwdev, size_t size,				  dma_addr_t *dma_handle);extern void pci_free_consistent(struct pci_dev *hwdev, size_t size,				void *vaddr, dma_addr_t dma_handle);/* Return the index of the PCI controller for device PDEV. */#define pci_controller_num(PDEV)	(0)/* The PCI address space does equal the physical memory * address space.  The networking and block device layers use * this boolean for bounce buffer decisions. */#define PCI_DMA_BUS_IS_PHYS	(1)/* pci_unmap_{page,single} is a nop so... */#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)#define pci_unmap_addr(PTR, ADDR_NAME)		(0)#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL)	do { } while (0)#define pci_unmap_len(PTR, LEN_NAME)		(0)#define pci_unmap_len_set(PTR, LEN_NAME, VAL)	do { } while (0)#ifdef CONFIG_PCIstatic inline void pci_dma_burst_advice(struct pci_dev *pdev,					enum pci_dma_burst_strategy *strat,					unsigned long *strategy_parameter){	*strat = PCI_DMA_BURST_INFINITY;	*strategy_parameter = ~0UL;}#endif/* *	These are pretty much arbitary with the CoMEM implementation. *	We have the whole address space to ourselves. */#define PCIBIOS_MIN_IO		0x100#define PCIBIOS_MIN_MEM		0x00010000/* Make physical memory consistent for a single * streaming mode DMA translation after a transfer. * * If you perform a pci_map_single() but wish to interrogate the * buffer using the cpu, yet do not wish to teardown the PCI dma * mapping, you must call this function before doing so.  At the * next point you give the PCI dma address back to the card, the * device again owns the buffer. */static inline void pci_dma_sync_single(struct pci_dev *hwdev,				       dma_addr_t dma_handle,				       size_t size, int direction){	if (direction == PCI_DMA_NONE)                BUG();	frv_cache_wback_inv((unsigned long)bus_to_virt(dma_handle),			    (unsigned long)bus_to_virt(dma_handle) + size);}/* Make physical memory consistent for a set of streaming * mode DMA translations after a transfer. * * The same as pci_dma_sync_single but for a scatter-gather list, * same rules and usage. */static inline void pci_dma_sync_sg(struct pci_dev *hwdev,				   struct scatterlist *sg,				   int nelems, int direction){	int i;	if (direction == PCI_DMA_NONE)                BUG();	for (i = 0; i < nelems; i++)		frv_cache_wback_inv(sg_dma_address(&sg[i]),				    sg_dma_address(&sg[i])+sg_dma_len(&sg[i]));}#endif