include/asm-powerpc/ppc-pci.h

   1 /*
   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  */
   9 #ifndef _ASM_POWERPC_PPC_PCI_H
  10 #define _ASM_POWERPC_PPC_PCI_H
  11
  12 #include <linux/pci.h>
  13 #include <asm/pci-bridge.h>
  14
  15 extern unsigned long isa_io_base;
  16
  17 extern void pci_setup_pci_controller(struct pci_controller *hose);
  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);
  20
  21
  22 extern struct list_head hose_list;
  23 extern int global_phb_number;
  24
  25 extern unsigned long find_and_init_phbs(void);
  26
  27 extern struct pci_dev *ppc64_isabridge_dev;     /* may be NULL if no ISA bus */
  28
  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)
  32
  33 /* PCI device_node operations */
  34 struct device_node;
  35 typedef void *(*traverse_func)(struct device_node *me, void *data);
  36 void *traverse_pci_devices(struct device_node *start, traverse_func pre,
  37                 void *data);
  38
  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);
  42
  43 /* From rtas_pci.h */
  44 void init_pci_config_tokens (void);
  45 unsigned long get_phb_buid (struct device_node *);
  46
  47 /* From pSeries_pci.h */
  48 extern void pSeries_final_fixup(void);
  49 extern void pSeries_irq_bus_setup(struct pci_bus *bus);
  50
  51 extern unsigned long pci_probe_only;
  52 extern unsigned long pci_assign_all_buses;
  53 extern int pci_read_irq_line(struct pci_dev *pci_dev);
  54
  55 /* ---- EEH internal-use-only related routines ---- */
  56 #ifdef CONFIG_EEH
  57 /**
  58  * rtas_set_slot_reset -- unfreeze a frozen slot
  59  *
  60  * Clear the EEH-frozen condition on a slot.  This routine
  61  * does this by asserting the PCI #RST line for 1/8th of
  62  * a second; this routine will sleep while the adapter is
  63  * being reset.
  64  */
  65 void rtas_set_slot_reset (struct pci_dn *);
  66
  67 /**
  68  * eeh_restore_bars - Restore device configuration info.
  69  *
  70  * A reset of a PCI device will clear out its config space.
  71  * This routines will restore the config space for this
  72  * device, and is children, to values previously obtained
  73  * from the firmware.
  74  */
  75 void eeh_restore_bars(struct pci_dn *);
  76
  77 /**
  78  * rtas_configure_bridge -- firmware initialization of pci bridge
  79  *
  80  * Ask the firmware to configure all PCI bridges devices
  81  * located behind the indicated node. Required after a
  82  * pci device reset. Does essentially the same hing as
  83  * eeh_restore_bars, but for brdges, and lets firmware
  84  * do the work.
  85  */
  86 void rtas_configure_bridge(struct pci_dn *);
  87
  88 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  89
  90 /**
  91  * mark and clear slots: find "partition endpoint" PE and set or
  92  * clear the flags for each subnode of the PE.
  93  */
  94 void eeh_mark_slot (struct device_node *dn, int mode_flag);
  95 void eeh_clear_slot (struct device_node *dn, int mode_flag);
  96
  97 #endif
  98
  99 #endif /* _ASM_POWERPC_PPC_PCI_H */