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 int setup_phb(struct device_node
*dev
, struct pci_controller
*phb
);
42 void __devinit
scan_phb(struct pci_controller
*hose
);
45 void init_pci_config_tokens (void);
46 unsigned long get_phb_buid (struct device_node
*);
48 /* From pSeries_pci.h */
49 extern void pSeries_final_fixup(void);
50 extern void pSeries_irq_bus_setup(struct pci_bus
*bus
);
52 extern unsigned long pci_probe_only
;
54 /* ---- EEH internal-use-only related routines ---- */
57 void pci_addr_cache_insert_device(struct pci_dev
*dev
);
58 void pci_addr_cache_remove_device(struct pci_dev
*dev
);
59 void pci_addr_cache_build(void);
60 struct pci_dev
*pci_get_device_by_addr(unsigned long addr
);
63 * eeh_slot_error_detail -- record and EEH error condition to the log
64 * @severity: 1 if temporary, 2 if permanent failure.
66 * Obtains the the EEH error details from the RTAS subsystem,
67 * and then logs these details with the RTAS error log system.
69 void eeh_slot_error_detail (struct pci_dn
*pdn
, int severity
);
72 * rtas_set_slot_reset -- unfreeze a frozen slot
74 * Clear the EEH-frozen condition on a slot. This routine
75 * does this by asserting the PCI #RST line for 1/8th of
76 * a second; this routine will sleep while the adapter is
79 * Returns a non-zero value if the reset failed.
81 int rtas_set_slot_reset (struct pci_dn
*);
84 * eeh_restore_bars - Restore device configuration info.
86 * A reset of a PCI device will clear out its config space.
87 * This routines will restore the config space for this
88 * device, and is children, to values previously obtained
91 void eeh_restore_bars(struct pci_dn
*);
94 * rtas_configure_bridge -- firmware initialization of pci bridge
96 * Ask the firmware to configure all PCI bridges devices
97 * located behind the indicated node. Required after a
98 * pci device reset. Does essentially the same hing as
99 * eeh_restore_bars, but for brdges, and lets firmware
102 void rtas_configure_bridge(struct pci_dn
*);
104 int rtas_write_config(struct pci_dn
*, int where
, int size
, u32 val
);
105 int rtas_read_config(struct pci_dn
*, int where
, int size
, u32
*val
);
108 * mark and clear slots: find "partition endpoint" PE and set or
109 * clear the flags for each subnode of the PE.
111 void eeh_mark_slot (struct device_node
*dn
, int mode_flag
);
112 void eeh_clear_slot (struct device_node
*dn
, int mode_flag
);
114 /* Find the associated "Partiationable Endpoint" PE */
115 struct device_node
* find_device_pe(struct device_node
*dn
);
119 #endif /* __KERNEL__ */
120 #endif /* _ASM_POWERPC_PPC_PCI_H */