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 extern void pci_devs_phb_init(void);
40 extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
41 extern void scan_phb(struct pci_controller *hose);
44 extern void init_pci_config_tokens (void);
45 extern unsigned long get_phb_buid (struct device_node *);
46 extern int rtas_setup_phb(struct pci_controller *phb);
48 /* From pSeries_pci.h */
49 extern void pSeries_final_fixup(void);
51 extern unsigned long pci_probe_only;
53 /* ---- EEH internal-use-only related routines ---- */
56 void pci_addr_cache_insert_device(struct pci_dev *dev);
57 void pci_addr_cache_remove_device(struct pci_dev *dev);
58 void pci_addr_cache_build(void);
59 struct pci_dev *pci_get_device_by_addr(unsigned long addr);
62 * eeh_slot_error_detail -- record and EEH error condition to the log
63 * @severity: 1 if temporary, 2 if permanent failure.
65 * Obtains the the EEH error details from the RTAS subsystem,
66 * and then logs these details with the RTAS error log system.
68 void eeh_slot_error_detail (struct pci_dn *pdn, int severity);
71 * rtas_pci_enableo - enable IO transfers for this slot
72 * @pdn: pci device node
73 * @function: either EEH_THAW_MMIO or EEH_THAW_DMA
75 * Enable I/O transfers to this slot
77 #define EEH_THAW_MMIO 2
78 #define EEH_THAW_DMA 3
79 int rtas_pci_enable(struct pci_dn *pdn, int function);
82 * rtas_set_slot_reset -- unfreeze a frozen slot
84 * Clear the EEH-frozen condition on a slot. This routine
85 * does this by asserting the PCI #RST line for 1/8th of
86 * a second; this routine will sleep while the adapter is
89 * Returns a non-zero value if the reset failed.
91 int rtas_set_slot_reset (struct pci_dn *);
94 * eeh_restore_bars - Restore device configuration info.
96 * A reset of a PCI device will clear out its config space.
97 * This routines will restore the config space for this
98 * device, and is children, to values previously obtained
101 void eeh_restore_bars(struct pci_dn *);
104 * rtas_configure_bridge -- firmware initialization of pci bridge
106 * Ask the firmware to configure all PCI bridges devices
107 * located behind the indicated node. Required after a
108 * pci device reset. Does essentially the same hing as
109 * eeh_restore_bars, but for brdges, and lets firmware
112 void rtas_configure_bridge(struct pci_dn *);
114 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
115 int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
118 * mark and clear slots: find "partition endpoint" PE and set or
119 * clear the flags for each subnode of the PE.
121 void eeh_mark_slot (struct device_node *dn, int mode_flag);
122 void eeh_clear_slot (struct device_node *dn, int mode_flag);
124 /* Find the associated "Partiationable Endpoint" PE */
125 struct device_node * find_device_pe(struct device_node *dn);
129 #endif /* __KERNEL__ */
130 #endif /* _ASM_POWERPC_PPC_PCI_H */