tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
2#ifndef _POWERPC_PROM_H
3#define _POWERPC_PROM_H
4#ifdef __KERNEL__
5
6/*
7 * Definitions for talking to the Open Firmware PROM on
8 * Power Macintosh computers.
9 *
10 * Copyright (C) 1996-2005 Paul Mackerras.
11 *
12 * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version
17 * 2 of the License, or (at your option) any later version.
18 */
19#include <linux/types.h>
20#include <asm/irq.h>
21#include <asm/atomic.h>
22
23#define HAVE_ARCH_DEVTREE_FIXUPS
24
25#ifdef CONFIG_PPC32
26/*
27 * PCI <-> OF matching functions
28 * (XXX should these be here?)
29 */
30struct pci_bus;
31struct pci_dev;
32extern int pci_device_from_OF_node(struct device_node *node,
33 u8* bus, u8* devfn);
34extern struct device_node* pci_busdev_to_OF_node(struct pci_bus *, int);
35extern struct device_node* pci_device_to_OF_node(struct pci_dev *);
36extern void pci_create_OF_bus_map(void);
37#endif
38
39/*
40 * OF address retreival & translation
41 */
42
43/* Translate a DMA address from device space to CPU space */
44extern u64 of_translate_dma_address(struct device_node *dev,
45 const __be32 *in_addr);
46
47#ifdef CONFIG_PCI
48extern unsigned long pci_address_to_pio(phys_addr_t address);
49#define pci_address_to_pio pci_address_to_pio
50#endif /* CONFIG_PCI */
51
52/* Parse the ibm,dma-window property of an OF node into the busno, phys and
53 * size parameters.
54 */
55void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
56 unsigned long *busno, unsigned long *phys, unsigned long *size);
57
58extern void kdump_move_device_tree(void);
59
60/* CPU OF node matching */
61struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
62
63/* cache lookup */
64struct device_node *of_find_next_cache_node(struct device_node *np);
65
66#ifdef CONFIG_NUMA
67extern int of_node_to_nid(struct device_node *device);
68#else
69static inline int of_node_to_nid(struct device_node *device) { return 0; }
70#endif
71#define of_node_to_nid of_node_to_nid
72
73extern void of_instantiate_rtc(void);
74
75/* These includes are put at the bottom because they may contain things
76 * that are overridden by this file. Ideally they shouldn't be included
77 * by this file, but there are a bunch of .c files that currently depend
78 * on it. Eventually they will be cleaned up. */
79#include <linux/of_fdt.h>
80#include <linux/of_address.h>
81#include <linux/of_irq.h>
82#include <linux/platform_device.h>
83
84#endif /* __KERNEL__ */
85#endif /* _POWERPC_PROM_H */