linux/arch/powerpc/include/asm/ppc-pci.h
Russell Currey 6654c9368a powerpc/eeh: Refactor EEH PE reset functions
eeh_pe_reset and eeh_reset_pe are two different functions in the same
file which do mostly the same thing.  Not only is this confusing, but
potentially causes disrepancies in functionality, notably eeh_reset_pe
as it does not check return values for failure.

Refactor this into the following:

 - eeh_pe_reset(): stays as is, performs a single operation, exported
 - eeh_pe_reset_full(): new, full reset process that calls eeh_pe_reset()
 - eeh_reset_pe(): removed and replaced by eeh_pe_reset_full()
 - eeh_reset_pe_once(): removed

Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-11-22 11:57:08 +11:00

86 lines
2.7 KiB
C

/*
* 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 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) upper_32_bits(buid)
#define BUID_LO(buid) lower_32_bits(buid)
/* PCI device_node operations */
struct device_node;
struct pci_dn;
void *pci_traverse_device_nodes(struct device_node *start,
void *(*fn)(struct device_node *, void *),
void *data);
void *traverse_pci_dn(struct pci_dn *root,
void *(*fn)(struct pci_dn *, void *),
void *data);
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);
#ifdef CONFIG_EEH
void eeh_addr_cache_insert_dev(struct pci_dev *dev);
void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
int eeh_pci_enable(struct eeh_pe *pe, int function);
int eeh_pe_reset_full(struct eeh_pe *pe);
void eeh_save_bars(struct eeh_dev *edev);
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);
void eeh_pe_state_mark(struct eeh_pe *pe, int state);
void eeh_pe_state_clear(struct eeh_pe *pe, int state);
void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
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>";
}
static inline const char *eeh_driver_name(struct pci_dev *pdev)
{
return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
}
#endif /* CONFIG_EEH */
#else /* CONFIG_PCI */
static inline void init_pci_config_tokens(void) { }
#endif /* !CONFIG_PCI */
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_PPC_PCI_H */