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_phb_io(struct pci_controller *hose, int primary);
  18 extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
  19
  20
  21 extern struct list_head hose_list;
  22 extern int global_phb_number;
  23
  24 extern unsigned long find_and_init_phbs(void);
  25
  26 extern struct pci_dev *ppc64_isabridge_dev;     /* may be NULL if no ISA bus */
  27
  28 /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
  29 #define BUID_HI(buid) ((buid) >> 32)
  30 #define BUID_LO(buid) ((buid) & 0xffffffff)
  31
  32 /* PCI device_node operations */
  33 struct device_node;
  34 typedef void *(*traverse_func)(struct device_node *me, void *data);
  35 void *traverse_pci_devices(struct device_node *start, traverse_func pre,
  36                 void *data);
  37
  38 void pci_devs_phb_init(void);
  39 void pci_devs_phb_init_dynamic(struct pci_controller *phb);
  40 void __devinit scan_phb(struct pci_controller *hose);
  41
  42 /* From rtas_pci.h */
  43 void init_pci_config_tokens (void);
  44 unsigned long get_phb_buid (struct device_node *);
  45
  46 /* From pSeries_pci.h */
  47 extern void pSeries_final_fixup(void);
  48 extern void pSeries_irq_bus_setup(struct pci_bus *bus);
  49
  50 extern unsigned long pci_probe_only;
  51
  52 /* ---- EEH internal-use-only related routines ---- */
  53 #ifdef CONFIG_EEH
  54 /**
  55  * rtas_set_slot_reset -- unfreeze a frozen slot
  56  *
  57  * Clear the EEH-frozen condition on a slot.  This routine
  58  * does this by asserting the PCI #RST line for 1/8th of
  59  * a second; this routine will sleep while the adapter is
  60  * being reset.
  61  */
  62 void rtas_set_slot_reset (struct pci_dn *);
  63
  64 /**
  65  * eeh_restore_bars - Restore device configuration info.
  66  *
  67  * A reset of a PCI device will clear out its config space.
  68  * This routines will restore the config space for this
  69  * device, and is children, to values previously obtained
  70  * from the firmware.
  71  */
  72 void eeh_restore_bars(struct pci_dn *);
  73
  74 /**
  75  * rtas_configure_bridge -- firmware initialization of pci bridge
  76  *
  77  * Ask the firmware to configure all PCI bridges devices
  78  * located behind the indicated node. Required after a
  79  * pci device reset. Does essentially the same hing as
  80  * eeh_restore_bars, but for brdges, and lets firmware
  81  * do the work.
  82  */
  83 void rtas_configure_bridge(struct pci_dn *);
  84
  85 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  86
  87 /**
  88  * mark and clear slots: find "partition endpoint" PE and set or
  89  * clear the flags for each subnode of the PE.
  90  */
  91 void eeh_mark_slot (struct device_node *dn, int mode_flag);
  92 void eeh_clear_slot (struct device_node *dn, int mode_flag);
  93
  94 #endif
  95
  96 #endif /* _ASM_POWERPC_PPC_PCI_H */