2 * c 2001 PPC 64 Team, IBM Corp
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.
9 #ifndef _ASM_POWERPC_PPC_PCI_H
10 #define _ASM_POWERPC_PPC_PCI_H
13 #include <linux/pci.h>
14 #include <asm/pci-bridge.h>
16 extern unsigned long isa_io_base;
18 extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
19 extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
22 extern struct list_head hose_list;
23 extern int global_phb_number;
25 extern unsigned long find_and_init_phbs(void);
27 extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */
29 /** 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)
33 /* PCI device_node operations */
35 typedef void *(*traverse_func)(struct device_node *me, void *data);
36 void *traverse_pci_devices(struct device_node *start, traverse_func pre,
39 void pci_devs_phb_init(void);
40 void pci_devs_phb_init_dynamic(struct pci_controller *phb);
41 void __devinit scan_phb(struct pci_controller *hose);
44 void init_pci_config_tokens (void);
45 unsigned long get_phb_buid (struct device_node *);
47 /* From pSeries_pci.h */
48 extern void pSeries_final_fixup(void);
49 extern void pSeries_irq_bus_setup(struct pci_bus *bus);
51 extern unsigned long pci_probe_only;
53 /* ---- EEH internal-use-only related routines ---- */
56 * rtas_set_slot_reset -- unfreeze a frozen slot
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
63 void rtas_set_slot_reset (struct pci_dn *);
66 * eeh_restore_bars - Restore device configuration info.
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
73 void eeh_restore_bars(struct pci_dn *);
76 * rtas_configure_bridge -- firmware initialization of pci bridge
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
84 void rtas_configure_bridge(struct pci_dn *);
86 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
89 * mark and clear slots: find "partition endpoint" PE and set or
90 * clear the flags for each subnode of the PE.
92 void eeh_mark_slot (struct device_node *dn, int mode_flag);
93 void eeh_clear_slot (struct device_node *dn, int mode_flag);
97 #endif /* __KERNEL__ */
98 #endif /* _ASM_POWERPC_PPC_PCI_H */