| /* |
| * 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__ |
| |
| #ifdef CONFIG_PCI |
| |
| #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 void find_and_init_phbs(void); |
| |
| extern struct pci_dev *isa_bridge_pcidev; /* 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); |
| |
| extern void pci_devs_phb_init(void); |
| extern void pci_devs_phb_init_dynamic(struct pci_controller *phb); |
| |
| /* From rtas_pci.h */ |
| extern void init_pci_config_tokens (void); |
| extern unsigned long get_phb_buid (struct device_node *); |
| extern int rtas_setup_phb(struct pci_controller *phb); |
| |
| 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 |
| * @pdn: pci device node |
| * @severity: EEH_LOG_TEMP_FAILURE or EEH_LOG_PERM_FAILURE |
| * |
| * Obtains the EEH error details from the RTAS subsystem, |
| * and then logs these details with the RTAS error log system. |
| */ |
| #define EEH_LOG_TEMP_FAILURE 1 |
| #define EEH_LOG_PERM_FAILURE 2 |
| void eeh_slot_error_detail (struct pci_dn *pdn, int severity); |
| |
| /** |
| * rtas_pci_enable - enable IO transfers for this slot |
| * @pdn: pci device node |
| * @function: either EEH_THAW_MMIO or EEH_THAW_DMA |
| * |
| * Enable I/O transfers to this slot |
| */ |
| #define EEH_THAW_MMIO 2 |
| #define EEH_THAW_DMA 3 |
| int rtas_pci_enable(struct pci_dn *pdn, int function); |
| |
| /** |
| * rtas_set_slot_reset -- unfreeze a frozen slot |
| * @pdn: pci device node |
| * |
| * 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 *); |
| int eeh_wait_for_slot_status(struct pci_dn *pdn, int max_wait_msecs); |
| |
| /** |
| * eeh_restore_bars - Restore device configuration info. |
| * @pdn: pci device node |
| * |
| * 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 |
| * @pdn: pci device node |
| * |
| * 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); |
| |
| /** |
| * eeh_mark_slot -- set mode flags for pertition endpoint |
| * @pdn: pci device node |
| * |
| * 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_device_pe -- Find the associated "Partiationable Endpoint" PE |
| * @pdn: pci device node |
| */ |
| struct device_node * find_device_pe(struct device_node *dn); |
| |
| void eeh_sysfs_add_device(struct pci_dev *pdev); |
| void eeh_sysfs_remove_device(struct pci_dev *pdev); |
| |
| static inline const char *eeh_pci_name(struct pci_dev *pdev) |
| { |
| return pdev ? pci_name(pdev) : "<null>"; |
| } |
| |
| #endif /* CONFIG_EEH */ |
| |
| #else /* CONFIG_PCI */ |
| static inline void find_and_init_phbs(void) { } |
| static inline void init_pci_config_tokens(void) { } |
| #endif /* !CONFIG_PCI */ |
| |
| #endif /* __KERNEL__ */ |
| #endif /* _ASM_POWERPC_PPC_PCI_H */ |
