/* * c 2001 PPC 64 Team, IBM Corp * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. */ #ifndef _ASM_POWERPC_PPC_PCI_H #define _ASM_POWERPC_PPC_PCI_H #ifdef __KERNEL__ #include <linux/pci.h> #include <asm/pci-bridge.h> extern unsigned long isa_io_base; extern void pci_setup_phb_io(struct pci_controller *hose, int primary); extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary); extern struct list_head hose_list; extern int global_phb_number; extern unsigned long find_and_init_phbs(void); extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */ /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */ #define BUID_HI(buid) ((buid) >> 32) #define BUID_LO(buid) ((buid) & 0xffffffff) /* PCI device_node operations */ struct device_node; typedef void *(*traverse_func)(struct device_node *me, void *data); void *traverse_pci_devices(struct device_node *start, traverse_func pre, void *data); void pci_devs_phb_init(void); void pci_devs_phb_init_dynamic(struct pci_controller *phb); void __devinit scan_phb(struct pci_controller *hose); /* From rtas_pci.h */ void init_pci_config_tokens (void); unsigned long get_phb_buid (struct device_node *); /* From pSeries_pci.h */ extern void pSeries_final_fixup(void); extern void pSeries_irq_bus_setup(struct pci_bus *bus); extern unsigned long pci_probe_only; /* ---- EEH internal-use-only related routines ---- */ #ifdef CONFIG_EEH void pci_addr_cache_insert_device(struct pci_dev *dev); void pci_addr_cache_remove_device(struct pci_dev *dev); void pci_addr_cache_build(void); struct pci_dev *pci_get_device_by_addr(unsigned long addr); /** * eeh_slot_error_detail -- record and EEH error condition to the log * @severity: 1 if temporary, 2 if permanent failure. * * Obtains the the EEH error details from the RTAS subsystem, * and then logs these details with the RTAS error log system. */ void eeh_slot_error_detail (struct pci_dn *pdn, int severity); /** * rtas_set_slot_reset -- unfreeze a frozen slot * * Clear the EEH-frozen condition on a slot. This routine * does this by asserting the PCI #RST line for 1/8th of * a second; this routine will sleep while the adapter is * being reset. * * Returns a non-zero value if the reset failed. */ int rtas_set_slot_reset (struct pci_dn *); /** * eeh_restore_bars - Restore device configuration info. * * A reset of a PCI device will clear out its config space. * This routines will restore the config space for this * device, and is children, to values previously obtained * from the firmware. */ void eeh_restore_bars(struct pci_dn *); /** * rtas_configure_bridge -- firmware initialization of pci bridge * * Ask the firmware to configure all PCI bridges devices * located behind the indicated node. Required after a * pci device reset. Does essentially the same hing as * eeh_restore_bars, but for brdges, and lets firmware * do the work. */ void rtas_configure_bridge(struct pci_dn *); int rtas_write_config(struct pci_dn *, int where, int size, u32 val); int rtas_read_config(struct pci_dn *, int where, int size, u32 *val); /** * mark and clear slots: find "partition endpoint" PE and set or * clear the flags for each subnode of the PE. */ void eeh_mark_slot (struct device_node *dn, int mode_flag); void eeh_clear_slot (struct device_node *dn, int mode_flag); /* Find the associated "Partiationable Endpoint" PE */ struct device_node * find_device_pe(struct device_node *dn); #endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_PPC_PCI_H */