1 #ifndef __POWERNV_PCI_H
2 #define __POWERNV_PCI_H
12 /* Precise PHB model for error management */
14 PNV_PHB_MODEL_UNKNOWN,
20 #define PNV_PCI_DIAG_BUF_SIZE 8192
21 #define PNV_IODA_PE_DEV (1 << 0) /* PE has single PCI device */
22 #define PNV_IODA_PE_BUS (1 << 1) /* PE has primary PCI bus */
23 #define PNV_IODA_PE_BUS_ALL (1 << 2) /* PE has subordinate buses */
25 /* Data associated with a PE, including IOMMU tracking etc.. */
31 /* A PE can be associated with a single device or an
32 * entire bus (& children). In the former case, pdev
33 * is populated, in the later case, pbus is.
38 /* Effective RID (device RID for a device PE and base bus
39 * RID with devfn 0 for a bus PE)
44 unsigned int pe_number;
46 /* "Weight" assigned to the PE for the sake of DMA resource
49 unsigned int dma_weight;
51 /* "Base" iommu table, ie, 4K TCEs, 32-bit DMA */
54 struct iommu_table tce32_table;
55 phys_addr_t tce_inval_reg_phys;
57 /* XXX TODO: Add support for additional 64-bit iommus */
59 /* MSIs. MVE index is identical for for 32 and 64 bit MSI
60 * and -1 if not supported. (It's actually identical to the
65 /* Link in list of PE#s */
66 struct list_head dma_link;
67 struct list_head list;
70 /* IOC dependent EEH operations */
73 int (*post_init)(struct pci_controller *hose);
74 int (*set_option)(struct eeh_pe *pe, int option);
75 int (*get_state)(struct eeh_pe *pe);
76 int (*reset)(struct eeh_pe *pe, int option);
77 int (*get_log)(struct eeh_pe *pe, int severity,
78 char *drv_log, unsigned long len);
79 int (*configure_bridge)(struct eeh_pe *pe);
80 int (*next_error)(struct eeh_pe **pe);
83 #define PNV_EEH_STATE_ENABLED (1 << 0) /* EEH enabled */
84 #define PNV_EEH_STATE_REMOVED (1 << 1) /* PHB removed */
86 #endif /* CONFIG_EEH */
89 struct pci_controller *hose;
90 enum pnv_phb_type type;
91 enum pnv_phb_model model;
99 struct pnv_eeh_ops *eeh_ops;
103 #ifdef CONFIG_DEBUG_FS
104 struct dentry *dbgfs;
107 #ifdef CONFIG_PCI_MSI
108 unsigned int msi_base;
109 unsigned int msi32_support;
110 struct msi_bitmap msi_bmp;
112 int (*msi_setup)(struct pnv_phb *phb, struct pci_dev *dev,
113 unsigned int hwirq, unsigned int virq,
114 unsigned int is_64, struct msi_msg *msg);
115 void (*dma_dev_setup)(struct pnv_phb *phb, struct pci_dev *pdev);
116 void (*fixup_phb)(struct pci_controller *hose);
117 u32 (*bdfn_to_pe)(struct pnv_phb *phb, struct pci_bus *bus, u32 devfn);
118 void (*shutdown)(struct pnv_phb *phb);
122 struct iommu_table iommu_table;
126 /* Global bridge info */
127 unsigned int total_pe;
128 unsigned int m32_size;
129 unsigned int m32_segsize;
130 unsigned int m32_pci_base;
131 unsigned int io_size;
132 unsigned int io_segsize;
133 unsigned int io_pci_base;
135 /* PE allocation bitmap */
136 unsigned long *pe_alloc;
138 /* M32 & IO segment maps */
139 unsigned int *m32_segmap;
140 unsigned int *io_segmap;
141 struct pnv_ioda_pe *pe_array;
145 struct irq_chip irq_chip;
147 /* Sorted list of used PE's based
148 * on the sequence of creation
150 struct list_head pe_list;
152 /* Reverse map of PEs, will have to extend if
153 * we are to support more than 256 PEs, indexed
156 unsigned char pe_rmap[0x10000];
158 /* 32-bit TCE tables allocation */
159 unsigned long tce32_count;
161 /* Total "weight" for the sake of DMA resources
164 unsigned int dma_weight;
165 unsigned int dma_pe_count;
167 /* Sorted list of used PE's, sorted at
168 * boot for resource allocation purposes
170 struct list_head pe_dma_list;
174 /* PHB status structure */
176 unsigned char blob[PNV_PCI_DIAG_BUF_SIZE];
177 struct OpalIoP7IOCPhbErrorData p7ioc;
181 extern struct pci_ops pnv_pci_ops;
183 extern struct pnv_eeh_ops ioda_eeh_ops;
186 int pnv_pci_cfg_read(struct device_node *dn,
187 int where, int size, u32 *val);
188 int pnv_pci_cfg_write(struct device_node *dn,
189 int where, int size, u32 val);
190 extern void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
191 void *tce_mem, u64 tce_size,
193 extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
194 extern void pnv_pci_init_ioda_hub(struct device_node *np);
195 extern void pnv_pci_init_ioda2_phb(struct device_node *np);
196 extern void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl,
197 __be64 *startp, __be64 *endp, bool rm);
199 #endif /* __POWERNV_PCI_H */