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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * c 2001 PPC 64 Team, IBM Corp
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
8 */
Stephen Rothwelld3878992005-09-28 02:50:25 +10009#ifndef _ASM_POWERPC_PPC_PCI_H
10#define _ASM_POWERPC_PPC_PCI_H
Arnd Bergmann88ced032005-12-16 22:43:46 +010011#ifdef __KERNEL__
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
13#include <linux/pci.h>
14#include <asm/pci-bridge.h>
15
16extern unsigned long isa_io_base;
17
Linus Torvalds1da177e2005-04-16 15:20:36 -070018extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
19extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
20
21
22extern struct list_head hose_list;
23extern int global_phb_number;
24
25extern unsigned long find_and_init_phbs(void);
26
27extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */
28
linasae65a392005-11-03 18:42:26 -060029/** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
30#define BUID_HI(buid) ((buid) >> 32)
31#define BUID_LO(buid) ((buid) & 0xffffffff)
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033/* PCI device_node operations */
34struct device_node;
35typedef void *(*traverse_func)(struct device_node *me, void *data);
36void *traverse_pci_devices(struct device_node *start, traverse_func pre,
37 void *data);
38
39void pci_devs_phb_init(void);
40void pci_devs_phb_init_dynamic(struct pci_controller *phb);
John Roseead83712005-11-04 15:30:56 -060041void __devinit scan_phb(struct pci_controller *hose);
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
John Rosedad32bb2005-06-23 17:09:54 +100043/* From rtas_pci.h */
Linus Torvalds1da177e2005-04-16 15:20:36 -070044void init_pci_config_tokens (void);
45unsigned long get_phb_buid (struct device_node *);
46
John Rosedad32bb2005-06-23 17:09:54 +100047/* From pSeries_pci.h */
48extern void pSeries_final_fixup(void);
49extern void pSeries_irq_bus_setup(struct pci_bus *bus);
50
Linus Torvalds1da177e2005-04-16 15:20:36 -070051extern unsigned long pci_probe_only;
Linus Torvalds1da177e2005-04-16 15:20:36 -070052
Linas Vepstas6dee3fb2005-11-03 18:50:10 -060053/* ---- EEH internal-use-only related routines ---- */
54#ifdef CONFIG_EEH
55/**
56 * rtas_set_slot_reset -- unfreeze a frozen slot
57 *
58 * Clear the EEH-frozen condition on a slot. This routine
59 * does this by asserting the PCI #RST line for 1/8th of
60 * a second; this routine will sleep while the adapter is
61 * being reset.
62 */
63void rtas_set_slot_reset (struct pci_dn *);
64
Linas Vepstas8b553f32005-11-03 18:50:17 -060065/**
66 * eeh_restore_bars - Restore device configuration info.
67 *
68 * A reset of a PCI device will clear out its config space.
69 * This routines will restore the config space for this
70 * device, and is children, to values previously obtained
71 * from the firmware.
72 */
73void eeh_restore_bars(struct pci_dn *);
74
75/**
76 * rtas_configure_bridge -- firmware initialization of pci bridge
77 *
78 * Ask the firmware to configure all PCI bridges devices
79 * located behind the indicated node. Required after a
80 * pci device reset. Does essentially the same hing as
81 * eeh_restore_bars, but for brdges, and lets firmware
82 * do the work.
83 */
84void rtas_configure_bridge(struct pci_dn *);
85
86int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
87
Linas Vepstasd9564ad2005-11-03 18:50:48 -060088/**
89 * mark and clear slots: find "partition endpoint" PE and set or
90 * clear the flags for each subnode of the PE.
91 */
92void eeh_mark_slot (struct device_node *dn, int mode_flag);
93void eeh_clear_slot (struct device_node *dn, int mode_flag);
94
Linas Vepstas6dee3fb2005-11-03 18:50:10 -060095#endif
96
Arnd Bergmann88ced032005-12-16 22:43:46 +010097#endif /* __KERNEL__ */
Stephen Rothwelld3878992005-09-28 02:50:25 +100098#endif /* _ASM_POWERPC_PPC_PCI_H */