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6dee3fb940
13-eeh-recovery-support-routines.patch EEH Recovery support routines This patch adds routines required to help drive the recovery of EEH-frozen slots. The main function is to drive the PCI #RST signal line high for a qurter of a second, and then allow for a second & a half of settle time. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/*
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* c 2001 PPC 64 Team, IBM Corp
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _ASM_POWERPC_PPC_PCI_H
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#define _ASM_POWERPC_PPC_PCI_H
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#include <linux/pci.h>
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#include <asm/pci-bridge.h>
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extern unsigned long isa_io_base;
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extern void pci_setup_pci_controller(struct pci_controller *hose);
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extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
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extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
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extern struct list_head hose_list;
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extern int global_phb_number;
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extern unsigned long find_and_init_phbs(void);
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extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */
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/** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
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#define BUID_HI(buid) ((buid) >> 32)
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#define BUID_LO(buid) ((buid) & 0xffffffff)
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/* PCI device_node operations */
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struct device_node;
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typedef void *(*traverse_func)(struct device_node *me, void *data);
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void *traverse_pci_devices(struct device_node *start, traverse_func pre,
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void *data);
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void pci_devs_phb_init(void);
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void pci_devs_phb_init_dynamic(struct pci_controller *phb);
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void __devinit scan_phb(struct pci_controller *hose);
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/* From rtas_pci.h */
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void init_pci_config_tokens (void);
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unsigned long get_phb_buid (struct device_node *);
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/* From pSeries_pci.h */
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extern void pSeries_final_fixup(void);
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extern void pSeries_irq_bus_setup(struct pci_bus *bus);
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extern unsigned long pci_probe_only;
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extern unsigned long pci_assign_all_buses;
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extern int pci_read_irq_line(struct pci_dev *pci_dev);
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/* ---- EEH internal-use-only related routines ---- */
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#ifdef CONFIG_EEH
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/**
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* rtas_set_slot_reset -- unfreeze a frozen slot
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*
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* Clear the EEH-frozen condition on a slot. This routine
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* does this by asserting the PCI #RST line for 1/8th of
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* a second; this routine will sleep while the adapter is
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* being reset.
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*/
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void rtas_set_slot_reset (struct pci_dn *);
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#endif
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#endif /* _ASM_POWERPC_PPC_PCI_H */
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