diff options
author | Paul Mackerras <paulus@samba.org> | 2005-11-19 04:17:32 -0500 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2005-11-19 04:17:32 -0500 |
commit | 047ea7846565917c4a666635fa1fa4b5c587cd55 (patch) | |
tree | 409c8f6ddd1f145fb364a8d6f813febd0c94d06b /include/asm-powerpc/pci-bridge.h | |
parent | 800fc3eeb0eed3bf98d621c0da24d68cabcf6526 (diff) |
powerpc: Trivially merge several headers from asm-ppc64 to asm-powerpc
For these, I have just done the lame-o merge where the file ends up
looking like:
#ifndef CONFIG_PPC64
#include <asm-ppc/foo.h>
#else
... contents from asm-ppc64/foo.h
#endif
so nothing has changed, really, except that we reduce include/asm-ppc64
a bit more.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/pci-bridge.h')
-rw-r--r-- | include/asm-powerpc/pci-bridge.h | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h new file mode 100644 index 00000000000..223ec7bd81d --- /dev/null +++ b/include/asm-powerpc/pci-bridge.h | |||
@@ -0,0 +1,153 @@ | |||
1 | #ifndef _ASM_POWERPC_PCI_BRIDGE_H | ||
2 | #define _ASM_POWERPC_PCI_BRIDGE_H | ||
3 | |||
4 | #ifndef CONFIG_PPC64 | ||
5 | #include <asm-ppc/pci-bridge.h> | ||
6 | #else | ||
7 | |||
8 | #include <linux/pci.h> | ||
9 | #include <linux/list.h> | ||
10 | |||
11 | /* | ||
12 | * This program is free software; you can redistribute it and/or | ||
13 | * modify it under the terms of the GNU General Public License | ||
14 | * as published by the Free Software Foundation; either version | ||
15 | * 2 of the License, or (at your option) any later version. | ||
16 | */ | ||
17 | |||
18 | /* | ||
19 | * Structure of a PCI controller (host bridge) | ||
20 | */ | ||
21 | struct pci_controller { | ||
22 | struct pci_bus *bus; | ||
23 | char is_dynamic; | ||
24 | void *arch_data; | ||
25 | struct list_head list_node; | ||
26 | |||
27 | int first_busno; | ||
28 | int last_busno; | ||
29 | |||
30 | void __iomem *io_base_virt; | ||
31 | unsigned long io_base_phys; | ||
32 | |||
33 | /* Some machines have a non 1:1 mapping of | ||
34 | * the PCI memory space in the CPU bus space | ||
35 | */ | ||
36 | unsigned long pci_mem_offset; | ||
37 | unsigned long pci_io_size; | ||
38 | |||
39 | struct pci_ops *ops; | ||
40 | volatile unsigned int __iomem *cfg_addr; | ||
41 | volatile void __iomem *cfg_data; | ||
42 | |||
43 | /* Currently, we limit ourselves to 1 IO range and 3 mem | ||
44 | * ranges since the common pci_bus structure can't handle more | ||
45 | */ | ||
46 | struct resource io_resource; | ||
47 | struct resource mem_resources[3]; | ||
48 | int global_number; | ||
49 | int local_number; | ||
50 | unsigned long buid; | ||
51 | unsigned long dma_window_base_cur; | ||
52 | unsigned long dma_window_size; | ||
53 | }; | ||
54 | |||
55 | /* | ||
56 | * PCI stuff, for nodes representing PCI devices, pointed to | ||
57 | * by device_node->data. | ||
58 | */ | ||
59 | struct pci_controller; | ||
60 | struct iommu_table; | ||
61 | |||
62 | struct pci_dn { | ||
63 | int busno; /* for pci devices */ | ||
64 | int bussubno; /* for pci devices */ | ||
65 | int devfn; /* for pci devices */ | ||
66 | |||
67 | #ifdef CONFIG_PPC_PSERIES | ||
68 | int eeh_mode; /* See eeh.h for possible EEH_MODEs */ | ||
69 | int eeh_config_addr; | ||
70 | int eeh_check_count; /* # times driver ignored error */ | ||
71 | int eeh_freeze_count; /* # times this device froze up. */ | ||
72 | int eeh_is_bridge; /* device is pci-to-pci bridge */ | ||
73 | #endif | ||
74 | int pci_ext_config_space; /* for pci devices */ | ||
75 | struct pci_controller *phb; /* for pci devices */ | ||
76 | struct iommu_table *iommu_table; /* for phb's or bridges */ | ||
77 | struct pci_dev *pcidev; /* back-pointer to the pci device */ | ||
78 | struct device_node *node; /* back-pointer to the device_node */ | ||
79 | #ifdef CONFIG_PPC_ISERIES | ||
80 | struct list_head Device_List; | ||
81 | int Irq; /* Assigned IRQ */ | ||
82 | int Flags; /* Possible flags(disable/bist)*/ | ||
83 | u8 LogicalSlot; /* Hv Slot Index for Tces */ | ||
84 | #endif | ||
85 | u32 config_space[16]; /* saved PCI config space */ | ||
86 | }; | ||
87 | |||
88 | /* Get the pointer to a device_node's pci_dn */ | ||
89 | #define PCI_DN(dn) ((struct pci_dn *) (dn)->data) | ||
90 | |||
91 | struct device_node *fetch_dev_dn(struct pci_dev *dev); | ||
92 | |||
93 | /* Get a device_node from a pci_dev. This code must be fast except | ||
94 | * in the case where the sysdata is incorrect and needs to be fixed | ||
95 | * up (this will only happen once). | ||
96 | * In this case the sysdata will have been inherited from a PCI host | ||
97 | * bridge or a PCI-PCI bridge further up the tree, so it will point | ||
98 | * to a valid struct pci_dn, just not the one we want. | ||
99 | */ | ||
100 | static inline struct device_node *pci_device_to_OF_node(struct pci_dev *dev) | ||
101 | { | ||
102 | struct device_node *dn = dev->sysdata; | ||
103 | struct pci_dn *pdn = dn->data; | ||
104 | |||
105 | if (pdn && pdn->devfn == dev->devfn && pdn->busno == dev->bus->number) | ||
106 | return dn; /* fast path. sysdata is good */ | ||
107 | return fetch_dev_dn(dev); | ||
108 | } | ||
109 | |||
110 | static inline int pci_device_from_OF_node(struct device_node *np, | ||
111 | u8 *bus, u8 *devfn) | ||
112 | { | ||
113 | if (!PCI_DN(np)) | ||
114 | return -ENODEV; | ||
115 | *bus = PCI_DN(np)->busno; | ||
116 | *devfn = PCI_DN(np)->devfn; | ||
117 | return 0; | ||
118 | } | ||
119 | |||
120 | static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus) | ||
121 | { | ||
122 | if (bus->self) | ||
123 | return pci_device_to_OF_node(bus->self); | ||
124 | else | ||
125 | return bus->sysdata; /* Must be root bus (PHB) */ | ||
126 | } | ||
127 | |||
128 | extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, | ||
129 | struct device_node *dev, int primary); | ||
130 | |||
131 | extern int pcibios_remove_root_bus(struct pci_controller *phb); | ||
132 | |||
133 | extern void phbs_remap_io(void); | ||
134 | |||
135 | static inline struct pci_controller *pci_bus_to_host(struct pci_bus *bus) | ||
136 | { | ||
137 | struct device_node *busdn = bus->sysdata; | ||
138 | |||
139 | BUG_ON(busdn == NULL); | ||
140 | return PCI_DN(busdn)->phb; | ||
141 | } | ||
142 | |||
143 | extern struct pci_controller * | ||
144 | pcibios_alloc_controller(struct device_node *dev); | ||
145 | extern void pcibios_free_controller(struct pci_controller *phb); | ||
146 | |||
147 | /* Return values for ppc_md.pci_probe_mode function */ | ||
148 | #define PCI_PROBE_NONE -1 /* Don't look at this bus at all */ | ||
149 | #define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */ | ||
150 | #define PCI_PROBE_DEVTREE 1 /* Instantiate from device tree */ | ||
151 | |||
152 | #endif /* CONFIG_PPC64 */ | ||
153 | #endif | ||