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-rw-r--r--include/asm-powerpc/pci-bridge.h199
1 files changed, 96 insertions, 103 deletions
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index d8bdc79db12e..e5802c62f428 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -1,15 +1,42 @@
1#ifndef _ASM_POWERPC_PCI_BRIDGE_H 1#ifndef _ASM_POWERPC_PCI_BRIDGE_H
2#define _ASM_POWERPC_PCI_BRIDGE_H 2#define _ASM_POWERPC_PCI_BRIDGE_H
3#ifdef __KERNEL__ 3#ifdef __KERNEL__
4 4/*
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 */
5#include <linux/pci.h> 10#include <linux/pci.h>
6#include <linux/list.h> 11#include <linux/list.h>
7#include <linux/ioport.h> 12#include <linux/ioport.h>
8 13
9#ifndef CONFIG_PPC64
10
11struct device_node; 14struct device_node;
12struct pci_controller; 15
16extern unsigned int ppc_pci_flags;
17enum {
18 /* Force re-assigning all resources (ignore firmware
19 * setup completely)
20 */
21 PPC_PCI_REASSIGN_ALL_RSRC = 0x00000001,
22
23 /* Re-assign all bus numbers */
24 PPC_PCI_REASSIGN_ALL_BUS = 0x00000002,
25
26 /* Do not try to assign, just use existing setup */
27 PPC_PCI_PROBE_ONLY = 0x00000004,
28
29 /* Don't bother with ISA alignment unless the bridge has
30 * ISA forwarding enabled
31 */
32 PPC_PCI_CAN_SKIP_ISA_ALIGN = 0x00000008,
33
34 /* Enable domain numbers in /proc */
35 PPC_PCI_ENABLE_PROC_DOMAINS = 0x00000010,
36 /* ... except for domain 0 */
37 PPC_PCI_COMPAT_DOMAIN_0 = 0x00000020,
38};
39
13 40
14/* 41/*
15 * Structure of a PCI controller (host bridge) 42 * Structure of a PCI controller (host bridge)
@@ -17,26 +44,41 @@ struct pci_controller;
17struct pci_controller { 44struct pci_controller {
18 struct pci_bus *bus; 45 struct pci_bus *bus;
19 char is_dynamic; 46 char is_dynamic;
20 void *arch_data; 47#ifdef CONFIG_PPC64
48 int node;
49#endif
50 struct device_node *dn;
21 struct list_head list_node; 51 struct list_head list_node;
22 struct device *parent; 52 struct device *parent;
23 53
24 int first_busno; 54 int first_busno;
25 int last_busno; 55 int last_busno;
56#ifndef CONFIG_PPC64
26 int self_busno; 57 int self_busno;
58#endif
27 59
28 void __iomem *io_base_virt; 60 void __iomem *io_base_virt;
61#ifdef CONFIG_PPC64
62 void *io_base_alloc;
63#endif
29 resource_size_t io_base_phys; 64 resource_size_t io_base_phys;
65#ifndef CONFIG_PPC64
66 resource_size_t pci_io_size;
67#endif
30 68
31 /* Some machines (PReP) have a non 1:1 mapping of 69 /* Some machines (PReP) have a non 1:1 mapping of
32 * the PCI memory space in the CPU bus space 70 * the PCI memory space in the CPU bus space
33 */ 71 */
34 resource_size_t pci_mem_offset; 72 resource_size_t pci_mem_offset;
73#ifdef CONFIG_PPC64
74 unsigned long pci_io_size;
75#endif
35 76
36 struct pci_ops *ops; 77 struct pci_ops *ops;
37 volatile unsigned int __iomem *cfg_addr; 78 unsigned int __iomem *cfg_addr;
38 volatile void __iomem *cfg_data; 79 void __iomem *cfg_data;
39 80
81#ifndef CONFIG_PPC64
40 /* 82 /*
41 * Used for variants of PCI indirect handling and possible quirks: 83 * Used for variants of PCI indirect handling and possible quirks:
42 * SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1 84 * SET_CFG_TYPE - used on 4xx or any PHB that does explicit type0/1
@@ -51,21 +93,30 @@ struct pci_controller {
51 * set. 93 * set.
52 * BIG_ENDIAN - cfg_addr is a big endian register 94 * BIG_ENDIAN - cfg_addr is a big endian register
53 */ 95 */
54#define PPC_INDIRECT_TYPE_SET_CFG_TYPE (0x00000001) 96#define PPC_INDIRECT_TYPE_SET_CFG_TYPE 0x00000001
55#define PPC_INDIRECT_TYPE_EXT_REG (0x00000002) 97#define PPC_INDIRECT_TYPE_EXT_REG 0x00000002
56#define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS (0x00000004) 98#define PPC_INDIRECT_TYPE_SURPRESS_PRIMARY_BUS 0x00000004
57#define PPC_INDIRECT_TYPE_NO_PCIE_LINK (0x00000008) 99#define PPC_INDIRECT_TYPE_NO_PCIE_LINK 0x00000008
58#define PPC_INDIRECT_TYPE_BIG_ENDIAN (0x00000010) 100#define PPC_INDIRECT_TYPE_BIG_ENDIAN 0x00000010
59 u32 indirect_type; 101 u32 indirect_type;
60 102#endif /* !CONFIG_PPC64 */
61 /* Currently, we limit ourselves to 1 IO range and 3 mem 103 /* Currently, we limit ourselves to 1 IO range and 3 mem
62 * ranges since the common pci_bus structure can't handle more 104 * ranges since the common pci_bus structure can't handle more
63 */ 105 */
64 struct resource io_resource; 106 struct resource io_resource;
65 struct resource mem_resources[3]; 107 struct resource mem_resources[3];
66 int global_number; /* PCI domain number */ 108 int global_number; /* PCI domain number */
109#ifdef CONFIG_PPC64
110 unsigned long buid;
111 unsigned long dma_window_base_cur;
112 unsigned long dma_window_size;
113
114 void *private_data;
115#endif /* CONFIG_PPC64 */
67}; 116};
68 117
118#ifndef CONFIG_PPC64
119
69static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus) 120static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus)
70{ 121{
71 return bus->sysdata; 122 return bus->sysdata;
@@ -81,18 +132,18 @@ static inline int isa_vaddr_is_ioport(void __iomem *address)
81 132
82/* These are used for config access before all the PCI probing 133/* These are used for config access before all the PCI probing
83 has been done. */ 134 has been done. */
84int early_read_config_byte(struct pci_controller *hose, int bus, int dev_fn, 135extern int early_read_config_byte(struct pci_controller *hose, int bus,
85 int where, u8 *val); 136 int dev_fn, int where, u8 *val);
86int early_read_config_word(struct pci_controller *hose, int bus, int dev_fn, 137extern int early_read_config_word(struct pci_controller *hose, int bus,
87 int where, u16 *val); 138 int dev_fn, int where, u16 *val);
88int early_read_config_dword(struct pci_controller *hose, int bus, int dev_fn, 139extern int early_read_config_dword(struct pci_controller *hose, int bus,
89 int where, u32 *val); 140 int dev_fn, int where, u32 *val);
90int early_write_config_byte(struct pci_controller *hose, int bus, int dev_fn, 141extern int early_write_config_byte(struct pci_controller *hose, int bus,
91 int where, u8 val); 142 int dev_fn, int where, u8 val);
92int early_write_config_word(struct pci_controller *hose, int bus, int dev_fn, 143extern int early_write_config_word(struct pci_controller *hose, int bus,
93 int where, u16 val); 144 int dev_fn, int where, u16 val);
94int early_write_config_dword(struct pci_controller *hose, int bus, int dev_fn, 145extern int early_write_config_dword(struct pci_controller *hose, int bus,
95 int where, u32 val); 146 int dev_fn, int where, u32 val);
96 147
97extern int early_find_capability(struct pci_controller *hose, int bus, 148extern int early_find_capability(struct pci_controller *hose, int bus,
98 int dev_fn, int cap); 149 int dev_fn, int cap);
@@ -101,87 +152,33 @@ extern void setup_indirect_pci(struct pci_controller* hose,
101 resource_size_t cfg_addr, 152 resource_size_t cfg_addr,
102 resource_size_t cfg_data, u32 flags); 153 resource_size_t cfg_data, u32 flags);
103extern void setup_grackle(struct pci_controller *hose); 154extern void setup_grackle(struct pci_controller *hose);
104extern void __init update_bridge_resource(struct pci_dev *dev, 155#else /* CONFIG_PPC64 */
105 struct resource *res);
106
107#else
108
109
110/*
111 * This program is free software; you can redistribute it and/or
112 * modify it under the terms of the GNU General Public License
113 * as published by the Free Software Foundation; either version
114 * 2 of the License, or (at your option) any later version.
115 */
116
117/*
118 * Structure of a PCI controller (host bridge)
119 */
120struct pci_controller {
121 struct pci_bus *bus;
122 char is_dynamic;
123 int node;
124 void *arch_data;
125 struct list_head list_node;
126 struct device *parent;
127
128 int first_busno;
129 int last_busno;
130
131 void __iomem *io_base_virt;
132 void *io_base_alloc;
133 resource_size_t io_base_phys;
134
135 /* Some machines have a non 1:1 mapping of
136 * the PCI memory space in the CPU bus space
137 */
138 resource_size_t pci_mem_offset;
139 unsigned long pci_io_size;
140
141 struct pci_ops *ops;
142 volatile unsigned int __iomem *cfg_addr;
143 volatile void __iomem *cfg_data;
144
145 /* Currently, we limit ourselves to 1 IO range and 3 mem
146 * ranges since the common pci_bus structure can't handle more
147 */
148 struct resource io_resource;
149 struct resource mem_resources[3];
150 int global_number;
151 unsigned long buid;
152 unsigned long dma_window_base_cur;
153 unsigned long dma_window_size;
154
155 void *private_data;
156};
157 156
158/* 157/*
159 * PCI stuff, for nodes representing PCI devices, pointed to 158 * PCI stuff, for nodes representing PCI devices, pointed to
160 * by device_node->data. 159 * by device_node->data.
161 */ 160 */
162struct pci_controller;
163struct iommu_table; 161struct iommu_table;
164 162
165struct pci_dn { 163struct pci_dn {
166 int busno; /* pci bus number */ 164 int busno; /* pci bus number */
167 int bussubno; /* pci subordinate bus number */
168 int devfn; /* pci device and function number */ 165 int devfn; /* pci device and function number */
169 int class_code; /* pci device class */
170 166
171 struct pci_controller *phb; /* for pci devices */ 167 struct pci_controller *phb; /* for pci devices */
172 struct iommu_table *iommu_table; /* for phb's or bridges */ 168 struct iommu_table *iommu_table; /* for phb's or bridges */
173 struct pci_dev *pcidev; /* back-pointer to the pci device */
174 struct device_node *node; /* back-pointer to the device_node */ 169 struct device_node *node; /* back-pointer to the device_node */
175 170
176 int pci_ext_config_space; /* for pci devices */ 171 int pci_ext_config_space; /* for pci devices */
177 172
178#ifdef CONFIG_EEH 173#ifdef CONFIG_EEH
174 struct pci_dev *pcidev; /* back-pointer to the pci device */
175 int class_code; /* pci device class */
179 int eeh_mode; /* See eeh.h for possible EEH_MODEs */ 176 int eeh_mode; /* See eeh.h for possible EEH_MODEs */
180 int eeh_config_addr; 177 int eeh_config_addr;
181 int eeh_pe_config_addr; /* new-style partition endpoint address */ 178 int eeh_pe_config_addr; /* new-style partition endpoint address */
182 int eeh_check_count; /* # times driver ignored error */ 179 int eeh_check_count; /* # times driver ignored error */
183 int eeh_freeze_count; /* # times this device froze up. */ 180 int eeh_freeze_count; /* # times this device froze up. */
184 int eeh_false_positives; /* # times this device reported #ff's */ 181 int eeh_false_positives; /* # times this device reported #ff's */
185 u32 config_space[16]; /* saved PCI config space */ 182 u32 config_space[16]; /* saved PCI config space */
186#endif 183#endif
187}; 184};
@@ -189,7 +186,7 @@ struct pci_dn {
189/* Get the pointer to a device_node's pci_dn */ 186/* Get the pointer to a device_node's pci_dn */
190#define PCI_DN(dn) ((struct pci_dn *) (dn)->data) 187#define PCI_DN(dn) ((struct pci_dn *) (dn)->data)
191 188
192struct device_node *fetch_dev_dn(struct pci_dev *dev); 189extern struct device_node *fetch_dev_dn(struct pci_dev *dev);
193 190
194/* Get a device_node from a pci_dev. This code must be fast except 191/* Get a device_node from a pci_dev. This code must be fast except
195 * in the case where the sysdata is incorrect and needs to be fixed 192 * in the case where the sysdata is incorrect and needs to be fixed
@@ -227,14 +224,14 @@ static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
227} 224}
228 225
229/** Find the bus corresponding to the indicated device node */ 226/** Find the bus corresponding to the indicated device node */
230struct pci_bus * pcibios_find_pci_bus(struct device_node *dn); 227extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn);
231 228
232/** Remove all of the PCI devices under this bus */ 229/** Remove all of the PCI devices under this bus */
233void pcibios_remove_pci_devices(struct pci_bus *bus); 230extern void pcibios_remove_pci_devices(struct pci_bus *bus);
234 231
235/** Discover new pci devices under this bus, and add them */ 232/** Discover new pci devices under this bus, and add them */
236void pcibios_add_pci_devices(struct pci_bus * bus); 233extern void pcibios_add_pci_devices(struct pci_bus *bus);
237void pcibios_fixup_new_pci_devices(struct pci_bus *bus, int fix_bus); 234extern void pcibios_fixup_new_pci_devices(struct pci_bus *bus);
238 235
239extern int pcibios_remove_root_bus(struct pci_controller *phb); 236extern int pcibios_remove_root_bus(struct pci_controller *phb);
240 237
@@ -270,20 +267,18 @@ extern int pcibios_map_io_space(struct pci_bus *bus);
270#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1) 267#define PHB_SET_NODE(PHB, NODE) ((PHB)->node = -1)
271#endif 268#endif
272 269
273#endif /* CONFIG_PPC64 */ 270#endif /* CONFIG_PPC64 */
274 271
275/* Get the PCI host controller for an OF device */ 272/* Get the PCI host controller for an OF device */
276extern struct pci_controller* 273extern struct pci_controller *pci_find_hose_for_OF_device(
277pci_find_hose_for_OF_device(struct device_node* node); 274 struct device_node* node);
278 275
279/* Fill up host controller resources from the OF node */ 276/* Fill up host controller resources from the OF node */
280extern void 277extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
281pci_process_bridge_OF_ranges(struct pci_controller *hose, 278 struct device_node *dev, int primary);
282 struct device_node *dev, int primary);
283 279
284/* Allocate & free a PCI host bridge structure */ 280/* Allocate & free a PCI host bridge structure */
285extern struct pci_controller * 281extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev);
286pcibios_alloc_controller(struct device_node *dev);
287extern void pcibios_free_controller(struct pci_controller *phb); 282extern void pcibios_free_controller(struct pci_controller *phb);
288 283
289#ifdef CONFIG_PCI 284#ifdef CONFIG_PCI
@@ -298,9 +293,7 @@ static inline int pcibios_vaddr_is_ioport(void __iomem *address)
298{ 293{
299 return 0; 294 return 0;
300} 295}
301#endif 296#endif /* CONFIG_PCI */
302
303 297
304 298#endif /* __KERNEL__ */
305#endif /* __KERNEL__ */ 299#endif /* _ASM_POWERPC_PCI_BRIDGE_H */
306#endif