1/*
2 * linux/include/asm-xtensa/pci.h
3 *
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License.  See the file "COPYING" in the main directory of this archive
6 * for more details.
7 *
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
10
11#ifndef _XTENSA_PCI_H
12#define _XTENSA_PCI_H
13
14#ifdef __KERNEL__
15
16/* Can be used to override the logic in pci_scan_bus for skipping
17 * already-configured bus numbers - to be used for buggy BIOSes
18 * or architectures with incomplete PCI setup by the loader
19 */
20
21#define pcibios_assign_all_busses()	0
22
23extern struct pci_controller* pcibios_alloc_controller(void);
24
25/* Assume some values. (We should revise them, if necessary) */
26
27#define PCIBIOS_MIN_IO		0x2000
28#define PCIBIOS_MIN_MEM		0x10000000
29
30/* Dynamic DMA mapping stuff.
31 * Xtensa has everything mapped statically like x86.
32 */
33
34#include <linux/types.h>
35#include <linux/slab.h>
36#include <asm/scatterlist.h>
37#include <linux/string.h>
38#include <asm/io.h>
39
40struct pci_dev;
41
42/* The PCI address space does equal the physical memory address space.
43 * The networking and block device layers use this boolean for bounce buffer
44 * decisions.
45 */
46
47#define PCI_DMA_BUS_IS_PHYS	(1)
48
49/* Map a range of PCI memory or I/O space for a device into user space */
50int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
51			enum pci_mmap_state mmap_state, int write_combine);
52
53/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
54#define HAVE_PCI_MMAP	1
55
56#endif /* __KERNEL__ */
57
58/* Implement the pci_ DMA API in terms of the generic device dma_ one */
59#include <asm-generic/pci-dma-compat.h>
60
61/* Generic PCI */
62#include <asm-generic/pci.h>
63
64#endif	/* _XTENSA_PCI_H */
65