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-rw-r--r--arch/powerpc/include/asm/eeh.h30
1 files changed, 24 insertions, 6 deletions
diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h
index 09a8743143f3..d3e5e9bc8f94 100644
--- a/arch/powerpc/include/asm/eeh.h
+++ b/arch/powerpc/include/asm/eeh.h
@@ -55,6 +55,8 @@ struct device_node;
55#define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */ 55#define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */
56#define EEH_PE_PHB_DEAD (1 << 2) /* Dead PHB */ 56#define EEH_PE_PHB_DEAD (1 << 2) /* Dead PHB */
57 57
58#define EEH_PE_KEEP (1 << 8) /* Keep PE on hotplug */
59
58struct eeh_pe { 60struct eeh_pe {
59 int type; /* PE type: PHB/Bus/Device */ 61 int type; /* PE type: PHB/Bus/Device */
60 int state; /* PE EEH dependent mode */ 62 int state; /* PE EEH dependent mode */
@@ -72,8 +74,8 @@ struct eeh_pe {
72 struct list_head child; /* Child PEs */ 74 struct list_head child; /* Child PEs */
73}; 75};
74 76
75#define eeh_pe_for_each_dev(pe, edev) \ 77#define eeh_pe_for_each_dev(pe, edev, tmp) \
76 list_for_each_entry(edev, &pe->edevs, list) 78 list_for_each_entry_safe(edev, tmp, &pe->edevs, list)
77 79
78/* 80/*
79 * The struct is used to trace EEH state for the associated 81 * The struct is used to trace EEH state for the associated
@@ -82,7 +84,13 @@ struct eeh_pe {
82 * another tree except the currently existing tree of PCI 84 * another tree except the currently existing tree of PCI
83 * buses and PCI devices 85 * buses and PCI devices
84 */ 86 */
85#define EEH_DEV_IRQ_DISABLED (1<<0) /* Interrupt disabled */ 87#define EEH_DEV_BRIDGE (1 << 0) /* PCI bridge */
88#define EEH_DEV_ROOT_PORT (1 << 1) /* PCIe root port */
89#define EEH_DEV_DS_PORT (1 << 2) /* Downstream port */
90#define EEH_DEV_IRQ_DISABLED (1 << 3) /* Interrupt disabled */
91#define EEH_DEV_DISCONNECTED (1 << 4) /* Removing from PE */
92
93#define EEH_DEV_SYSFS (1 << 8) /* Sysfs created */
86 94
87struct eeh_dev { 95struct eeh_dev {
88 int mode; /* EEH mode */ 96 int mode; /* EEH mode */
@@ -90,11 +98,13 @@ struct eeh_dev {
90 int config_addr; /* Config address */ 98 int config_addr; /* Config address */
91 int pe_config_addr; /* PE config address */ 99 int pe_config_addr; /* PE config address */
92 u32 config_space[16]; /* Saved PCI config space */ 100 u32 config_space[16]; /* Saved PCI config space */
101 u8 pcie_cap; /* Saved PCIe capability */
93 struct eeh_pe *pe; /* Associated PE */ 102 struct eeh_pe *pe; /* Associated PE */
94 struct list_head list; /* Form link list in the PE */ 103 struct list_head list; /* Form link list in the PE */
95 struct pci_controller *phb; /* Associated PHB */ 104 struct pci_controller *phb; /* Associated PHB */
96 struct device_node *dn; /* Associated device node */ 105 struct device_node *dn; /* Associated device node */
97 struct pci_dev *pdev; /* Associated PCI device */ 106 struct pci_dev *pdev; /* Associated PCI device */
107 struct pci_bus *bus; /* PCI bus for partial hotplug */
98}; 108};
99 109
100static inline struct device_node *eeh_dev_to_of_node(struct eeh_dev *edev) 110static inline struct device_node *eeh_dev_to_of_node(struct eeh_dev *edev)
@@ -193,8 +203,10 @@ int eeh_phb_pe_create(struct pci_controller *phb);
193struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb); 203struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb);
194struct eeh_pe *eeh_pe_get(struct eeh_dev *edev); 204struct eeh_pe *eeh_pe_get(struct eeh_dev *edev);
195int eeh_add_to_parent_pe(struct eeh_dev *edev); 205int eeh_add_to_parent_pe(struct eeh_dev *edev);
196int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe); 206int eeh_rmv_from_parent_pe(struct eeh_dev *edev);
197void eeh_pe_update_time_stamp(struct eeh_pe *pe); 207void eeh_pe_update_time_stamp(struct eeh_pe *pe);
208void *eeh_pe_traverse(struct eeh_pe *root,
209 eeh_traverse_func fn, void *flag);
198void *eeh_pe_dev_traverse(struct eeh_pe *root, 210void *eeh_pe_dev_traverse(struct eeh_pe *root,
199 eeh_traverse_func fn, void *flag); 211 eeh_traverse_func fn, void *flag);
200void eeh_pe_restore_bars(struct eeh_pe *pe); 212void eeh_pe_restore_bars(struct eeh_pe *pe);
@@ -209,10 +221,12 @@ unsigned long eeh_check_failure(const volatile void __iomem *token,
209 unsigned long val); 221 unsigned long val);
210int eeh_dev_check_failure(struct eeh_dev *edev); 222int eeh_dev_check_failure(struct eeh_dev *edev);
211void eeh_addr_cache_build(void); 223void eeh_addr_cache_build(void);
224void eeh_add_device_early(struct device_node *);
212void eeh_add_device_tree_early(struct device_node *); 225void eeh_add_device_tree_early(struct device_node *);
226void eeh_add_device_late(struct pci_dev *);
213void eeh_add_device_tree_late(struct pci_bus *); 227void eeh_add_device_tree_late(struct pci_bus *);
214void eeh_add_sysfs_files(struct pci_bus *); 228void eeh_add_sysfs_files(struct pci_bus *);
215void eeh_remove_bus_device(struct pci_dev *, int); 229void eeh_remove_device(struct pci_dev *);
216 230
217/** 231/**
218 * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure. 232 * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure.
@@ -252,13 +266,17 @@ static inline unsigned long eeh_check_failure(const volatile void __iomem *token
252 266
253static inline void eeh_addr_cache_build(void) { } 267static inline void eeh_addr_cache_build(void) { }
254 268
269static inline void eeh_add_device_early(struct device_node *dn) { }
270
255static inline void eeh_add_device_tree_early(struct device_node *dn) { } 271static inline void eeh_add_device_tree_early(struct device_node *dn) { }
256 272
273static inline void eeh_add_device_late(struct pci_dev *dev) { }
274
257static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } 275static inline void eeh_add_device_tree_late(struct pci_bus *bus) { }
258 276
259static inline void eeh_add_sysfs_files(struct pci_bus *bus) { } 277static inline void eeh_add_sysfs_files(struct pci_bus *bus) { }
260 278
261static inline void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { } 279static inline void eeh_remove_device(struct pci_dev *dev) { }
262 280
263#define EEH_POSSIBLE_ERROR(val, type) (0) 281#define EEH_POSSIBLE_ERROR(val, type) (0)
264#define EEH_IO_ERROR_VALUE(size) (-1UL) 282#define EEH_IO_ERROR_VALUE(size) (-1UL)