1
2#ifndef _ASM_POWERPC_PCI_BRIDGE_H
3#define _ASM_POWERPC_PCI_BRIDGE_H
4#ifdef __KERNEL__
5
6
7#include <linux/pci.h>
8#include <linux/list.h>
9#include <linux/ioport.h>
10#include <linux/numa.h>
11
12struct device_node;
13
14
15
16
17struct pci_controller_ops {
18 void (*dma_dev_setup)(struct pci_dev *pdev);
19 void (*dma_bus_setup)(struct pci_bus *bus);
20 bool (*iommu_bypass_supported)(struct pci_dev *pdev,
21 u64 mask);
22
23 int (*probe_mode)(struct pci_bus *bus);
24
25
26
27 bool (*enable_device_hook)(struct pci_dev *pdev);
28
29 void (*disable_device)(struct pci_dev *pdev);
30
31 void (*release_device)(struct pci_dev *pdev);
32
33
34 resource_size_t (*window_alignment)(struct pci_bus *bus,
35 unsigned long type);
36 void (*setup_bridge)(struct pci_bus *bus,
37 unsigned long type);
38 void (*reset_secondary_bus)(struct pci_dev *pdev);
39
40#ifdef CONFIG_PCI_MSI
41 int (*setup_msi_irqs)(struct pci_dev *pdev,
42 int nvec, int type);
43 void (*teardown_msi_irqs)(struct pci_dev *pdev);
44#endif
45
46 void (*shutdown)(struct pci_controller *hose);
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 __iomem *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 struct irq_domain *dev_domain;
132 struct irq_domain *msi_domain;
133 struct fwnode_handle *fwnode;
134};
135
136
137
138extern int early_read_config_byte(struct pci_controller *hose, int bus,
139 int dev_fn, int where, u8 *val);
140extern int early_read_config_word(struct pci_controller *hose, int bus,
141 int dev_fn, int where, u16 *val);
142extern int early_read_config_dword(struct pci_controller *hose, int bus,
143 int dev_fn, int where, u32 *val);
144extern int early_write_config_byte(struct pci_controller *hose, int bus,
145 int dev_fn, int where, u8 val);
146extern int early_write_config_word(struct pci_controller *hose, int bus,
147 int dev_fn, int where, u16 val);
148extern int early_write_config_dword(struct pci_controller *hose, int bus,
149 int dev_fn, int where, u32 val);
150
151extern int early_find_capability(struct pci_controller *hose, int bus,
152 int dev_fn, int cap);
153
154extern void setup_indirect_pci(struct pci_controller* hose,
155 resource_size_t cfg_addr,
156 resource_size_t cfg_data, u32 flags);
157
158extern int indirect_read_config(struct pci_bus *bus, unsigned int devfn,
159 int offset, int len, u32 *val);
160
161extern int __indirect_read_config(struct pci_controller *hose,
162 unsigned char bus_number, unsigned int devfn,
163 int offset, int len, u32 *val);
164
165extern int indirect_write_config(struct pci_bus *bus, unsigned int devfn,
166 int offset, int len, u32 val);
167
168static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus)
169{
170 return bus->sysdata;
171}
172
173#ifndef CONFIG_PPC64
174
175extern int pci_device_from_OF_node(struct device_node *node,
176 u8 *bus, u8 *devfn);
177extern void pci_create_OF_bus_map(void);
178
179#else
180
181
182
183
184
185struct iommu_table;
186
187struct pci_dn {
188 int flags;
189#define PCI_DN_FLAG_IOV_VF 0x01
190#define PCI_DN_FLAG_DEAD 0x02
191
192 int busno;
193 int devfn;
194 int vendor_id;
195 int device_id;
196 int class_code;
197
198 struct pci_dn *parent;
199 struct pci_controller *phb;
200 struct iommu_table_group *table_group;
201
202 int pci_ext_config_space;
203#ifdef CONFIG_EEH
204 struct eeh_dev *edev;
205#endif
206#define IODA_INVALID_PE 0xFFFFFFFF
207 unsigned int pe_number;
208#ifdef CONFIG_PCI_IOV
209 u16 vfs_expanded;
210 u16 num_vfs;
211 unsigned int *pe_num_map;
212 bool m64_single_mode;
213#define IODA_INVALID_M64 (-1)
214 int (*m64_map)[PCI_SRIOV_NUM_BARS];
215 int last_allow_rc;
216#endif
217 int mps;
218 struct list_head child_list;
219 struct list_head list;
220 struct resource holes[PCI_SRIOV_NUM_BARS];
221};
222
223
224#define PCI_DN(dn) ((struct pci_dn *) (dn)->data)
225
226extern struct pci_dn *pci_get_pdn_by_devfn(struct pci_bus *bus,
227 int devfn);
228extern struct pci_dn *pci_get_pdn(struct pci_dev *pdev);
229extern struct pci_dn *pci_add_device_node_info(struct pci_controller *hose,
230 struct device_node *dn);
231extern void pci_remove_device_node_info(struct device_node *dn);
232
233#ifdef CONFIG_PCI_IOV
234struct pci_dn *add_sriov_vf_pdns(struct pci_dev *pdev);
235void remove_sriov_vf_pdns(struct pci_dev *pdev);
236#endif
237
238static inline int pci_device_from_OF_node(struct device_node *np,
239 u8 *bus, u8 *devfn)
240{
241 if (!PCI_DN(np))
242 return -ENODEV;
243 *bus = PCI_DN(np)->busno;
244 *devfn = PCI_DN(np)->devfn;
245 return 0;
246}
247
248#if defined(CONFIG_EEH)
249static inline struct eeh_dev *pdn_to_eeh_dev(struct pci_dn *pdn)
250{
251 return pdn ? pdn->edev : NULL;
252}
253#else
254#define pdn_to_eeh_dev(x) (NULL)
255#endif
256
257
258extern struct pci_bus *pci_find_bus_by_node(struct device_node *dn);
259
260
261extern void pci_hp_remove_devices(struct pci_bus *bus);
262
263
264extern void pci_hp_add_devices(struct pci_bus *bus);
265
266extern int pcibios_unmap_io_space(struct pci_bus *bus);
267extern int pcibios_map_io_space(struct pci_bus *bus);
268
269#ifdef CONFIG_NUMA
270#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = (NODE))
271#else
272#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = NUMA_NO_NODE)
273#endif
274
275#endif
276
277
278extern struct pci_controller *pci_find_hose_for_OF_device(
279 struct device_node* node);
280
281extern struct pci_controller *pci_find_controller_for_domain(int domain_nr);
282
283
284extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
285 struct device_node *dev, int primary);
286
287
288extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
289extern void pcibios_free_controller(struct pci_controller *phb);
290extern void pcibios_free_controller_deferred(struct pci_host_bridge *bridge);
291
292#ifdef CONFIG_PCI
293extern int pcibios_vaddr_is_ioport(void __iomem *address);
294#else
295static inline int pcibios_vaddr_is_ioport(void __iomem *address)
296{
297 return 0;
298}
299#endif
300
301#endif
302#endif
303