diff options
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/ppc-pci.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/rtas_pci.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh.c | 33 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/eeh_cache.c | 14 |
6 files changed, 28 insertions, 32 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 895fd0d59ed7..ebfdb7c9d023 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -196,7 +196,7 @@ int __init eeh_ops_register(struct eeh_ops *ops); int __exit eeh_ops_unregister(const char *name); unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val); -int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev); +int eeh_dev_check_failure(struct eeh_dev *edev); void __init pci_addr_cache_build(void); void eeh_add_device_tree_early(struct device_node *); void eeh_add_device_tree_late(struct pci_bus *); @@ -231,10 +231,7 @@ static inline unsigned long eeh_check_failure(const volatile void __iomem *token return val; } -static inline int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) -{ - return 0; -} +#define eeh_dev_check_failure(x) (0) static inline void pci_addr_cache_build(void) { } diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 8cccbee61519..973df4d9d366 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -184,6 +184,8 @@ static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn) { return PCI_DN(dn)->edev; } +#else +#define of_node_to_eeh_dev(x) (NULL) #endif /** Find the bus corresponding to the indicated device node */ diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h index 56d55c7fed9a..962a9021cfa6 100644 --- a/arch/powerpc/include/asm/ppc-pci.h +++ b/arch/powerpc/include/asm/ppc-pci.h @@ -50,7 +50,7 @@ extern int rtas_setup_phb(struct pci_controller *phb); void pci_addr_cache_build(void); void pci_addr_cache_insert_device(struct pci_dev *dev); void pci_addr_cache_remove_device(struct pci_dev *dev); -struct pci_dev *pci_addr_cache_get_device(unsigned long addr); +struct eeh_dev *pci_addr_cache_get_device(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_reset_pe(struct eeh_pe *); diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c index 140735c18c36..6de63e3250bb 100644 --- a/arch/powerpc/kernel/rtas_pci.c +++ b/arch/powerpc/kernel/rtas_pci.c @@ -81,7 +81,7 @@ int rtas_read_config(struct pci_dn *pdn, int where, int size, u32 *val) return PCIBIOS_DEVICE_NOT_FOUND; if (returnval == EEH_IO_ERROR_VALUE(size) && - eeh_dn_check_failure (pdn->node, NULL)) + eeh_dev_check_failure(of_node_to_eeh_dev(pdn->node))) return PCIBIOS_DEVICE_NOT_FOUND; return PCIBIOS_SUCCESSFUL; diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c index 4bdc278c2fd7..9e618424b187 100644 --- a/arch/powerpc/platforms/pseries/eeh.c +++ b/arch/powerpc/platforms/pseries/eeh.c @@ -270,9 +270,8 @@ static inline unsigned long eeh_token_to_phys(unsigned long token) } /** - * eeh_dn_check_failure - Check if all 1's data is due to EEH slot freeze - * @dn: device node - * @dev: pci device, if known + * eeh_dev_check_failure - Check if all 1's data is due to EEH slot freeze + * @edev: eeh device * * Check for an EEH failure for the given device node. Call this * routine if the result of a read was all 0xff's and you want to @@ -284,12 +283,13 @@ static inline unsigned long eeh_token_to_phys(unsigned long token) * * It is safe to call this routine in an interrupt context. */ -int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) +int eeh_dev_check_failure(struct eeh_dev *edev) { int ret; unsigned long flags; + struct device_node *dn; + struct pci_dev *dev; struct eeh_pe *pe; - struct eeh_dev *edev; int rc = 0; const char *location; @@ -298,15 +298,12 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev) if (!eeh_subsystem_enabled) return 0; - if (dn) { - edev = of_node_to_eeh_dev(dn); - } else if (dev) { - edev = pci_dev_to_eeh_dev(dev); - dn = pci_device_to_OF_node(dev); - } else { + if (!edev) { eeh_stats.no_dn++; return 0; } + dn = eeh_dev_to_of_node(edev); + dev = eeh_dev_to_pci_dev(edev); pe = edev->pe; /* Access to IO BARs might get this far and still not want checking. */ @@ -393,7 +390,7 @@ dn_unlock: return rc; } -EXPORT_SYMBOL_GPL(eeh_dn_check_failure); +EXPORT_SYMBOL_GPL(eeh_dev_check_failure); /** * eeh_check_failure - Check if all 1's data is due to EEH slot freeze @@ -410,21 +407,19 @@ EXPORT_SYMBOL_GPL(eeh_dn_check_failure); unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val) { unsigned long addr; - struct pci_dev *dev; - struct device_node *dn; + struct eeh_dev *edev; /* Finding the phys addr + pci device; this is pretty quick. */ addr = eeh_token_to_phys((unsigned long __force) token); - dev = pci_addr_cache_get_device(addr); - if (!dev) { + edev = pci_addr_cache_get_device(addr); + if (!edev) { eeh_stats.no_device++; return val; } - dn = pci_device_to_OF_node(dev); - eeh_dn_check_failure(dn, dev); + eeh_dev_check_failure(edev); - pci_dev_put(dev); + pci_dev_put(eeh_dev_to_pci_dev(edev)); return val; } diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c index a1910579d7aa..6c5ef757f4d4 100644 --- a/arch/powerpc/platforms/pseries/eeh_cache.c +++ b/arch/powerpc/platforms/pseries/eeh_cache.c @@ -50,6 +50,7 @@ struct pci_io_addr_range { struct rb_node rb_node; unsigned long addr_lo; unsigned long addr_hi; + struct eeh_dev *edev; struct pci_dev *pcidev; unsigned int flags; }; @@ -59,7 +60,7 @@ static struct pci_io_addr_cache { spinlock_t piar_lock; } pci_io_addr_cache_root; -static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) +static inline struct eeh_dev *__pci_addr_cache_get_device(unsigned long addr) { struct rb_node *n = pci_io_addr_cache_root.rb_root.rb_node; @@ -74,7 +75,7 @@ static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) n = n->rb_right; } else { pci_dev_get(piar->pcidev); - return piar->pcidev; + return piar->edev; } } } @@ -92,15 +93,15 @@ static inline struct pci_dev *__pci_addr_cache_get_device(unsigned long addr) * from zero (that is, they do *not* have pci_io_addr added in). * It is safe to call this function within an interrupt. */ -struct pci_dev *pci_addr_cache_get_device(unsigned long addr) +struct eeh_dev *pci_addr_cache_get_device(unsigned long addr) { - struct pci_dev *dev; + struct eeh_dev *edev; unsigned long flags; spin_lock_irqsave(&pci_io_addr_cache_root.piar_lock, flags); - dev = __pci_addr_cache_get_device(addr); + edev = __pci_addr_cache_get_device(addr); spin_unlock_irqrestore(&pci_io_addr_cache_root.piar_lock, flags); - return dev; + return edev; } #ifdef DEBUG @@ -158,6 +159,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo, pci_dev_get(dev); piar->addr_lo = alo; piar->addr_hi = ahi; + piar->edev = pci_dev_to_eeh_dev(dev); piar->pcidev = dev; piar->flags = flags; |