1#ifndef _ASM_POWERPC_PCI_BRIDGE_H
2#define _ASM_POWERPC_PCI_BRIDGE_H
3#ifdef __KERNEL__
4
5
6
7
8
9
10#include <linux/pci.h>
11#include <linux/list.h>
12#include <linux/ioport.h>
13
14struct device_node;
15
16
17
18
19struct pci_controller_ops {
20 void (*dma_dev_setup)(struct pci_dev *dev);
21 void (*dma_bus_setup)(struct pci_bus *bus);
22
23 int (*probe_mode)(struct pci_bus *);
24
25
26
27 bool (*enable_device_hook)(struct pci_dev *);
28
29 void (*disable_device)(struct pci_dev *);
30
31 void (*release_device)(struct pci_dev *);
32
33
34 resource_size_t (*window_alignment)(struct pci_bus *, unsigned long type);
35 void (*reset_secondary_bus)(struct pci_dev *dev);
36
37#ifdef CONFIG_PCI_MSI
38 int (*setup_msi_irqs)(struct pci_dev *dev,
39 int nvec, int type);
40 void (*teardown_msi_irqs)(struct pci_dev *dev);
41#endif
42
43 int (*dma_set_mask)(struct pci_dev *dev, u64 dma_mask);
44 u64 (*dma_get_required_mask)(struct pci_dev *dev);
45
46 void (*shutdown)(struct pci_controller *);
47};
48
49
50
51
52struct pci_controller {
53 struct pci_bus *bus;
54 char is_dynamic;
55#ifdef CONFIG_PPC64
56 int node;
57#endif
58 struct device_node *dn;
59 struct list_head list_node;
60 struct device *parent;
61
62 int first_busno;
63 int last_busno;
64 int self_busno;
65 struct resource busn;
66
67 void __iomem *io_base_virt;
68#ifdef CONFIG_PPC64
69 void *io_base_alloc;
70#endif
71 resource_size_t io_base_phys;
72 resource_size_t pci_io_size;
73
74
75
76
77
78 resource_size_t isa_mem_phys;
79 resource_size_t isa_mem_size;
80
81 struct pci_controller_ops controller_ops;
82 struct pci_ops *ops;
83 unsigned int __iomem *cfg_addr;
84 void __iomem *cfg_data;
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104#define PPC_INDIRECT_TYPE_SET_CFG_TYPE 0x00000001
105#define PPC_INDIRECT_TYPE_EXT_REG 0x00000002
106#define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS 0x00000004
107#define PPC_INDIRECT_TYPE_NO_PCIE_LINK 0x00000008
108#define PPC_INDIRECT_TYPE_BIG_ENDIAN 0x00000010
109#define PPC_INDIRECT_TYPE_BROKEN_MRM 0x00000020
110#define PPC_INDIRECT_TYPE_FSL_CFG_REG_LINK 0x00000040
111 u32 indirect_type;
112
113
114
115 struct resource io_resource;
116 struct resource mem_resources[3];
117 resource_size_t mem_offset[3];
118 int global_number;
119
120 resource_size_t dma_window_base_cur;
121 resource_size_t dma_window_size;
122
123#ifdef CONFIG_PPC64
124 unsigned long buid;
125 struct pci_dn *pci_data;
126#endif
127
128 void *private_data;
129};
130
131
132
133extern int early_read_config_byte(struct pci_controller *hose, int bus,
134 int dev_fn, int where, u8 *val);
135extern int early_read_config_word(struct pci_controller *hose, int bus,
136 int dev_fn, int where, u16 *val);
137extern int early_read_config_dword(struct pci_controller *hose, int bus,
138 int dev_fn, int where, u32 *val);
139extern int early_write_config_byte(struct pci_controller *hose, int bus,
140 int dev_fn, int where, u8 val);
141extern int early_write_config_word(struct pci_controller *hose, int bus,
142 int dev_fn, int where, u16 val);
143extern int early_write_config_dword(struct pci_controller *hose, int bus,
144 int dev_fn, int where, u32 val);
145
146extern int early_find_capability(struct pci_controller *hose, int bus,
147 int dev_fn, int cap);
148
149extern void setup_indirect_pci(struct pci_controller* hose,
150 resource_size_t cfg_addr,
151 resource_size_t cfg_data, u32 flags);
152
153extern int indirect_read_config(struct pci_bus *bus, unsigned int devfn,
154 int offset, int len, u32 *val);
155
156extern int __indirect_read_config(struct pci_controller *hose,
157 unsigned char bus_number, unsigned int devfn,
158 int offset, int len, u32 *val);
159
160extern int indirect_write_config(struct pci_bus *bus, unsigned int devfn,
161 int offset, int len, u32 val);
162
163static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus)
164{
165 return bus->sysdata;
166}
167
168#ifndef CONFIG_PPC64
169
170extern int pci_device_from_OF_node(struct device_node *node,
171 u8 *bus, u8 *devfn);
172extern void pci_create_OF_bus_map(void);
173
174static inline int isa_vaddr_is_ioport(void __iomem *address)
175{
176
177
178
179 return 0;
180}
181
182#else
183
184
185
186
187
188struct iommu_table;
189
190struct pci_dn {
191 int flags;
192#define PCI_DN_FLAG_IOV_VF 0x01
193
194 int busno;
195 int devfn;
196 int vendor_id;
197 int device_id;
198 int class_code;
199
200 struct pci_dn *parent;
201 struct pci_controller *phb;
202 struct iommu_table_group *table_group;
203 struct device_node *node;
204
205 int pci_ext_config_space;
206
207 struct pci_dev *pcidev;
208#ifdef CONFIG_EEH
209 struct eeh_dev *edev;
210#endif
211#define IODA_INVALID_PE (-1)
212#ifdef CONFIG_PPC_POWERNV
213 int pe_number;
214 int vf_index;
215#ifdef CONFIG_PCI_IOV
216 u16 vfs_expanded;
217 u16 num_vfs;
218 int *pe_num_map;
219 bool m64_single_mode;
220#define IODA_INVALID_M64 (-1)
221 int (*m64_map)[PCI_SRIOV_NUM_BARS];
222#endif
223 int mps;
224#endif
225 struct list_head child_list;
226 struct list_head list;
227};
228
229
230#define PCI_DN(dn) ((struct pci_dn *) (dn)->data)
231
232extern struct pci_dn *pci_get_pdn_by_devfn(struct pci_bus *bus,
233 int devfn);
234extern struct pci_dn *pci_get_pdn(struct pci_dev *pdev);
235extern struct pci_dn *add_dev_pci_data(struct pci_dev *pdev);
236extern void remove_dev_pci_data(struct pci_dev *pdev);
237extern void *update_dn_pci_info(struct device_node *dn, void *data);
238
239static inline int pci_device_from_OF_node(struct device_node *np,
240 u8 *bus, u8 *devfn)
241{
242 if (!PCI_DN(np))
243 return -ENODEV;
244 *bus = PCI_DN(np)->busno;
245 *devfn = PCI_DN(np)->devfn;
246 return 0;
247}
248
249#if defined(CONFIG_EEH)
250static inline struct eeh_dev *pdn_to_eeh_dev(struct pci_dn *pdn)
251{
252 return pdn ? pdn->edev : NULL;
253}
254#else
255#define pdn_to_eeh_dev(x) (NULL)
256#endif
257
258
259extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn);
260
261
262extern void pcibios_remove_pci_devices(struct pci_bus *bus);
263
264
265extern void pcibios_add_pci_devices(struct pci_bus *bus);
266
267
268extern void isa_bridge_find_early(struct pci_controller *hose);
269
270static inline int isa_vaddr_is_ioport(void __iomem *address)
271{
272
273 unsigned long ea = (unsigned long)address;
274 return ea >= ISA_IO_BASE && ea < ISA_IO_END;
275}
276
277extern int pcibios_unmap_io_space(struct pci_bus *bus);
278extern int pcibios_map_io_space(struct pci_bus *bus);
279
280#ifdef CONFIG_NUMA
281#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE))
282#else
283#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1)
284#endif
285
286#endif
287
288
289extern struct pci_controller *pci_find_hose_for_OF_device(
290 struct device_node* node);
291
292
293extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
294 struct device_node *dev, int primary);
295
296
297extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
298extern void pcibios_free_controller(struct pci_controller *phb);
299
300#ifdef CONFIG_PCI
301extern int pcibios_vaddr_is_ioport(void __iomem *address);
302#else
303static inline int pcibios_vaddr_is_ioport(void __iomem *address)
304{
305 return 0;
306}
307#endif
308
309#endif
310#endif
311