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Commit cc74d96f47b0d916840f92092595e3be9731e047

Authored by Greg Kroah-Hartman
1 parent 93d74463d0
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

PCI: fix issue with busses registering multiple times in sysfs 

PCI busses can be registered multiple times, so we need to detect if we
have registered our bus structure in sysfs already.  If so, don't do it
again.

Thanks to Guennadi Liakhovetski <g.liakhovetski@gmx.de> for reporting
the problem, and to Linus for poking me to get me to believe that it was
a real problem.

Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Showing 2 changed files with 6 additions and 1 deletions Inline Diff

1 /* 1 /*
2 * drivers/pci/bus.c 2 * drivers/pci/bus.c
3 * 3 *
4 * From setup-res.c, by: 4 * From setup-res.c, by:
5 * Dave Rusling (david.rusling@reo.mts.dec.com) 5 * Dave Rusling (david.rusling@reo.mts.dec.com)
6 * David Mosberger (davidm@cs.arizona.edu) 6 * David Mosberger (davidm@cs.arizona.edu)
7 * David Miller (davem@redhat.com) 7 * David Miller (davem@redhat.com)
8 * Ivan Kokshaysky (ink@jurassic.park.msu.ru) 8 * Ivan Kokshaysky (ink@jurassic.park.msu.ru)
9 */ 9 */
10 #include <linux/module.h> 10 #include <linux/module.h>
11 #include <linux/kernel.h> 11 #include <linux/kernel.h>
12 #include <linux/pci.h> 12 #include <linux/pci.h>
13 #include <linux/errno.h> 13 #include <linux/errno.h>
14 #include <linux/ioport.h> 14 #include <linux/ioport.h>
15 #include <linux/proc_fs.h> 15 #include <linux/proc_fs.h>
16 #include <linux/init.h> 16 #include <linux/init.h>
17 17
18 #include "pci.h" 18 #include "pci.h"
19 19
20 /** 20 /**
21 * pci_bus_alloc_resource - allocate a resource from a parent bus 21 * pci_bus_alloc_resource - allocate a resource from a parent bus
22 * @bus: PCI bus 22 * @bus: PCI bus
23 * @res: resource to allocate 23 * @res: resource to allocate
24 * @size: size of resource to allocate 24 * @size: size of resource to allocate
25 * @align: alignment of resource to allocate 25 * @align: alignment of resource to allocate
26 * @min: minimum /proc/iomem address to allocate 26 * @min: minimum /proc/iomem address to allocate
27 * @type_mask: IORESOURCE_* type flags 27 * @type_mask: IORESOURCE_* type flags
28 * @alignf: resource alignment function 28 * @alignf: resource alignment function
29 * @alignf_data: data argument for resource alignment function 29 * @alignf_data: data argument for resource alignment function
30 * 30 *
31 * Given the PCI bus a device resides on, the size, minimum address, 31 * Given the PCI bus a device resides on, the size, minimum address,
32 * alignment and type, try to find an acceptable resource allocation 32 * alignment and type, try to find an acceptable resource allocation
33 * for a specific device resource. 33 * for a specific device resource.
34 */ 34 */
35 int 35 int
36 pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res, 36 pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
37 resource_size_t size, resource_size_t align, 37 resource_size_t size, resource_size_t align,
38 resource_size_t min, unsigned int type_mask, 38 resource_size_t min, unsigned int type_mask,
39 void (*alignf)(void *, struct resource *, resource_size_t, 39 void (*alignf)(void *, struct resource *, resource_size_t,
40 resource_size_t), 40 resource_size_t),
41 void *alignf_data) 41 void *alignf_data)
42 { 42 {
43 int i, ret = -ENOMEM; 43 int i, ret = -ENOMEM;
44 44
45 type_mask |= IORESOURCE_IO | IORESOURCE_MEM; 45 type_mask |= IORESOURCE_IO | IORESOURCE_MEM;
46 46
47 for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { 47 for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
48 struct resource *r = bus->resource[i]; 48 struct resource *r = bus->resource[i];
49 if (!r) 49 if (!r)
50 continue; 50 continue;
51 51
52 /* type_mask must match */ 52 /* type_mask must match */
53 if ((res->flags ^ r->flags) & type_mask) 53 if ((res->flags ^ r->flags) & type_mask)
54 continue; 54 continue;
55 55
56 /* We cannot allocate a non-prefetching resource 56 /* We cannot allocate a non-prefetching resource
57 from a pre-fetching area */ 57 from a pre-fetching area */
58 if ((r->flags & IORESOURCE_PREFETCH) && 58 if ((r->flags & IORESOURCE_PREFETCH) &&
59 !(res->flags & IORESOURCE_PREFETCH)) 59 !(res->flags & IORESOURCE_PREFETCH))
60 continue; 60 continue;
61 61
62 /* Ok, try it out.. */ 62 /* Ok, try it out.. */
63 ret = allocate_resource(r, res, size, 63 ret = allocate_resource(r, res, size,
64 r->start ? : min, 64 r->start ? : min,
65 -1, align, 65 -1, align,
66 alignf, alignf_data); 66 alignf, alignf_data);
67 if (ret == 0) 67 if (ret == 0)
68 break; 68 break;
69 } 69 }
70 return ret; 70 return ret;
71 } 71 }
72 72
73 /** 73 /**
74 * add a single device 74 * add a single device
75 * @dev: device to add 75 * @dev: device to add
76 * 76 *
77 * This adds a single pci device to the global 77 * This adds a single pci device to the global
78 * device list and adds sysfs and procfs entries 78 * device list and adds sysfs and procfs entries
79 */ 79 */
80 int pci_bus_add_device(struct pci_dev *dev) 80 int pci_bus_add_device(struct pci_dev *dev)
81 { 81 {
82 int retval; 82 int retval;
83 retval = device_add(&dev->dev); 83 retval = device_add(&dev->dev);
84 if (retval) 84 if (retval)
85 return retval; 85 return retval;
86 86
87 down_write(&pci_bus_sem); 87 down_write(&pci_bus_sem);
88 list_add_tail(&dev->global_list, &pci_devices); 88 list_add_tail(&dev->global_list, &pci_devices);
89 up_write(&pci_bus_sem); 89 up_write(&pci_bus_sem);
90 90
91 pci_proc_attach_device(dev); 91 pci_proc_attach_device(dev);
92 pci_create_sysfs_dev_files(dev); 92 pci_create_sysfs_dev_files(dev);
93 return 0; 93 return 0;
94 } 94 }
95 95
96 /** 96 /**
97 * pci_bus_add_devices - insert newly discovered PCI devices 97 * pci_bus_add_devices - insert newly discovered PCI devices
98 * @bus: bus to check for new devices 98 * @bus: bus to check for new devices
99 * 99 *
100 * Add newly discovered PCI devices (which are on the bus->devices 100 * Add newly discovered PCI devices (which are on the bus->devices
101 * list) to the global PCI device list, add the sysfs and procfs 101 * list) to the global PCI device list, add the sysfs and procfs
102 * entries. Where a bridge is found, add the discovered bus to 102 * entries. Where a bridge is found, add the discovered bus to
103 * the parents list of child buses, and recurse (breadth-first 103 * the parents list of child buses, and recurse (breadth-first
104 * to be compatible with 2.4) 104 * to be compatible with 2.4)
105 * 105 *
106 * Call hotplug for each new devices. 106 * Call hotplug for each new devices.
107 */ 107 */
108 void pci_bus_add_devices(struct pci_bus *bus) 108 void pci_bus_add_devices(struct pci_bus *bus)
109 { 109 {
110 struct pci_dev *dev; 110 struct pci_dev *dev;
111 struct pci_bus *child_bus; 111 struct pci_bus *child_bus;
112 int retval; 112 int retval;
113 113
114 list_for_each_entry(dev, &bus->devices, bus_list) { 114 list_for_each_entry(dev, &bus->devices, bus_list) {
115 /* 115 /*
116 * Skip already-present devices (which are on the 116 * Skip already-present devices (which are on the
117 * global device list.) 117 * global device list.)
118 */ 118 */
119 if (!list_empty(&dev->global_list)) 119 if (!list_empty(&dev->global_list))
120 continue; 120 continue;
121 retval = pci_bus_add_device(dev); 121 retval = pci_bus_add_device(dev);
122 if (retval) 122 if (retval)
123 dev_err(&dev->dev, "Error adding device, continuing\n"); 123 dev_err(&dev->dev, "Error adding device, continuing\n");
124 } 124 }
125 125
126 list_for_each_entry(dev, &bus->devices, bus_list) { 126 list_for_each_entry(dev, &bus->devices, bus_list) {
127 127
128 BUG_ON(list_empty(&dev->global_list)); 128 BUG_ON(list_empty(&dev->global_list));
129 129
130 /* 130 /*
131 * If there is an unattached subordinate bus, attach 131 * If there is an unattached subordinate bus, attach
132 * it and then scan for unattached PCI devices. 132 * it and then scan for unattached PCI devices.
133 */ 133 */
134 if (dev->subordinate) { 134 if (dev->subordinate) {
135 if (list_empty(&dev->subordinate->node)) { 135 if (list_empty(&dev->subordinate->node)) {
136 down_write(&pci_bus_sem); 136 down_write(&pci_bus_sem);
137 list_add_tail(&dev->subordinate->node, 137 list_add_tail(&dev->subordinate->node,
138 &dev->bus->children); 138 &dev->bus->children);
139 up_write(&pci_bus_sem); 139 up_write(&pci_bus_sem);
140 } 140 }
141 pci_bus_add_devices(dev->subordinate); 141 pci_bus_add_devices(dev->subordinate);
142 142
143 /* register the bus with sysfs as the parent is now 143 /* register the bus with sysfs as the parent is now
144 * properly registered. */ 144 * properly registered. */
145 child_bus = dev->subordinate; 145 child_bus = dev->subordinate;
146 if (child_bus->is_added)
147 continue;
146 child_bus->dev.parent = child_bus->bridge; 148 child_bus->dev.parent = child_bus->bridge;
147 retval = device_register(&child_bus->dev); 149 retval = device_register(&child_bus->dev);
148 if (retval) 150 if (retval)
149 dev_err(&dev->dev, "Error registering pci_bus," 151 dev_err(&dev->dev, "Error registering pci_bus,"
150 " continuing...\n"); 152 " continuing...\n");
151 else 153 else {
154 child_bus->is_added = 1;
152 retval = device_create_file(&child_bus->dev, 155 retval = device_create_file(&child_bus->dev,
153 &dev_attr_cpuaffinity); 156 &dev_attr_cpuaffinity);
157 }
154 if (retval) 158 if (retval)
155 dev_err(&dev->dev, "Error creating cpuaffinity" 159 dev_err(&dev->dev, "Error creating cpuaffinity"
156 " file, continuing...\n"); 160 " file, continuing...\n");
157 } 161 }
158 } 162 }
159 } 163 }
160 164
161 void pci_enable_bridges(struct pci_bus *bus) 165 void pci_enable_bridges(struct pci_bus *bus)
162 { 166 {
163 struct pci_dev *dev; 167 struct pci_dev *dev;
164 int retval; 168 int retval;
165 169
166 list_for_each_entry(dev, &bus->devices, bus_list) { 170 list_for_each_entry(dev, &bus->devices, bus_list) {
167 if (dev->subordinate) { 171 if (dev->subordinate) {
168 retval = pci_enable_device(dev); 172 retval = pci_enable_device(dev);
169 pci_set_master(dev); 173 pci_set_master(dev);
170 pci_enable_bridges(dev->subordinate); 174 pci_enable_bridges(dev->subordinate);
171 } 175 }
172 } 176 }
173 } 177 }
174 178
175 /** pci_walk_bus - walk devices on/under bus, calling callback. 179 /** pci_walk_bus - walk devices on/under bus, calling callback.
176 * @top bus whose devices should be walked 180 * @top bus whose devices should be walked
177 * @cb callback to be called for each device found 181 * @cb callback to be called for each device found
178 * @userdata arbitrary pointer to be passed to callback. 182 * @userdata arbitrary pointer to be passed to callback.
179 * 183 *
180 * Walk the given bus, including any bridged devices 184 * Walk the given bus, including any bridged devices
181 * on buses under this bus. Call the provided callback 185 * on buses under this bus. Call the provided callback
182 * on each device found. 186 * on each device found.
183 */ 187 */
184 void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), 188 void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
185 void *userdata) 189 void *userdata)
186 { 190 {
187 struct pci_dev *dev; 191 struct pci_dev *dev;
188 struct pci_bus *bus; 192 struct pci_bus *bus;
189 struct list_head *next; 193 struct list_head *next;
190 194
191 bus = top; 195 bus = top;
192 down_read(&pci_bus_sem); 196 down_read(&pci_bus_sem);
193 next = top->devices.next; 197 next = top->devices.next;
194 for (;;) { 198 for (;;) {
195 if (next == &bus->devices) { 199 if (next == &bus->devices) {
196 /* end of this bus, go up or finish */ 200 /* end of this bus, go up or finish */
197 if (bus == top) 201 if (bus == top)
198 break; 202 break;
199 next = bus->self->bus_list.next; 203 next = bus->self->bus_list.next;
200 bus = bus->self->bus; 204 bus = bus->self->bus;
201 continue; 205 continue;
202 } 206 }
203 dev = list_entry(next, struct pci_dev, bus_list); 207 dev = list_entry(next, struct pci_dev, bus_list);
204 if (dev->subordinate) { 208 if (dev->subordinate) {
205 /* this is a pci-pci bridge, do its devices next */ 209 /* this is a pci-pci bridge, do its devices next */
206 next = dev->subordinate->devices.next; 210 next = dev->subordinate->devices.next;
207 bus = dev->subordinate; 211 bus = dev->subordinate;
208 } else 212 } else
209 next = dev->bus_list.next; 213 next = dev->bus_list.next;
210 214
211 /* Run device routines with the device locked */ 215 /* Run device routines with the device locked */
212 down(&dev->dev.sem); 216 down(&dev->dev.sem);
213 cb(dev, userdata); 217 cb(dev, userdata);
214 up(&dev->dev.sem); 218 up(&dev->dev.sem);
215 } 219 }
216 up_read(&pci_bus_sem); 220 up_read(&pci_bus_sem);
217 } 221 }
218 222
219 EXPORT_SYMBOL(pci_bus_alloc_resource); 223 EXPORT_SYMBOL(pci_bus_alloc_resource);
220 EXPORT_SYMBOL_GPL(pci_bus_add_device); 224 EXPORT_SYMBOL_GPL(pci_bus_add_device);
221 EXPORT_SYMBOL(pci_bus_add_devices); 225 EXPORT_SYMBOL(pci_bus_add_devices);
222 EXPORT_SYMBOL(pci_enable_bridges); 226 EXPORT_SYMBOL(pci_enable_bridges);
223 227
1 /* 1 /*
2 * pci.h 2 * pci.h
3 * 3 *
4 * PCI defines and function prototypes 4 * PCI defines and function prototypes
5 * Copyright 1994, Drew Eckhardt 5 * Copyright 1994, Drew Eckhardt
6 * Copyright 1997--1999 Martin Mares <mj@ucw.cz> 6 * Copyright 1997--1999 Martin Mares <mj@ucw.cz>
7 * 7 *
8 * For more information, please consult the following manuals (look at 8 * For more information, please consult the following manuals (look at
9 * http://www.pcisig.com/ for how to get them): 9 * http://www.pcisig.com/ for how to get them):
10 * 10 *
11 * PCI BIOS Specification 11 * PCI BIOS Specification
12 * PCI Local Bus Specification 12 * PCI Local Bus Specification
13 * PCI to PCI Bridge Specification 13 * PCI to PCI Bridge Specification
14 * PCI System Design Guide 14 * PCI System Design Guide
15 */ 15 */
16 16
17 #ifndef LINUX_PCI_H 17 #ifndef LINUX_PCI_H
18 #define LINUX_PCI_H 18 #define LINUX_PCI_H
19 19
20 /* Include the pci register defines */ 20 /* Include the pci register defines */
21 #include <linux/pci_regs.h> 21 #include <linux/pci_regs.h>
22 22
23 /* 23 /*
24 * The PCI interface treats multi-function devices as independent 24 * The PCI interface treats multi-function devices as independent
25 * devices. The slot/function address of each device is encoded 25 * devices. The slot/function address of each device is encoded
26 * in a single byte as follows: 26 * in a single byte as follows:
27 * 27 *
28 * 7:3 = slot 28 * 7:3 = slot
29 * 2:0 = function 29 * 2:0 = function
30 */ 30 */
31 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) 31 #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
32 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) 32 #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
33 #define PCI_FUNC(devfn) ((devfn) & 0x07) 33 #define PCI_FUNC(devfn) ((devfn) & 0x07)
34 34
35 /* Ioctls for /proc/bus/pci/X/Y nodes. */ 35 /* Ioctls for /proc/bus/pci/X/Y nodes. */
36 #define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8) 36 #define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8)
37 #define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */ 37 #define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */
38 #define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */ 38 #define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */
39 #define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */ 39 #define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */
40 #define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */ 40 #define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */
41 41
42 #ifdef __KERNEL__ 42 #ifdef __KERNEL__
43 43
44 #include <linux/mod_devicetable.h> 44 #include <linux/mod_devicetable.h>
45 45
46 #include <linux/types.h> 46 #include <linux/types.h>
47 #include <linux/ioport.h> 47 #include <linux/ioport.h>
48 #include <linux/list.h> 48 #include <linux/list.h>
49 #include <linux/compiler.h> 49 #include <linux/compiler.h>
50 #include <linux/errno.h> 50 #include <linux/errno.h>
51 #include <asm/atomic.h> 51 #include <asm/atomic.h>
52 #include <linux/device.h> 52 #include <linux/device.h>
53 53
54 /* Include the ID list */ 54 /* Include the ID list */
55 #include <linux/pci_ids.h> 55 #include <linux/pci_ids.h>
56 56
57 /* File state for mmap()s on /proc/bus/pci/X/Y */ 57 /* File state for mmap()s on /proc/bus/pci/X/Y */
58 enum pci_mmap_state { 58 enum pci_mmap_state {
59 pci_mmap_io, 59 pci_mmap_io,
60 pci_mmap_mem 60 pci_mmap_mem
61 }; 61 };
62 62
63 /* This defines the direction arg to the DMA mapping routines. */ 63 /* This defines the direction arg to the DMA mapping routines. */
64 #define PCI_DMA_BIDIRECTIONAL 0 64 #define PCI_DMA_BIDIRECTIONAL 0
65 #define PCI_DMA_TODEVICE 1 65 #define PCI_DMA_TODEVICE 1
66 #define PCI_DMA_FROMDEVICE 2 66 #define PCI_DMA_FROMDEVICE 2
67 #define PCI_DMA_NONE 3 67 #define PCI_DMA_NONE 3
68 68
69 #define DEVICE_COUNT_RESOURCE 12 69 #define DEVICE_COUNT_RESOURCE 12
70 70
71 typedef int __bitwise pci_power_t; 71 typedef int __bitwise pci_power_t;
72 72
73 #define PCI_D0 ((pci_power_t __force) 0) 73 #define PCI_D0 ((pci_power_t __force) 0)
74 #define PCI_D1 ((pci_power_t __force) 1) 74 #define PCI_D1 ((pci_power_t __force) 1)
75 #define PCI_D2 ((pci_power_t __force) 2) 75 #define PCI_D2 ((pci_power_t __force) 2)
76 #define PCI_D3hot ((pci_power_t __force) 3) 76 #define PCI_D3hot ((pci_power_t __force) 3)
77 #define PCI_D3cold ((pci_power_t __force) 4) 77 #define PCI_D3cold ((pci_power_t __force) 4)
78 #define PCI_UNKNOWN ((pci_power_t __force) 5) 78 #define PCI_UNKNOWN ((pci_power_t __force) 5)
79 #define PCI_POWER_ERROR ((pci_power_t __force) -1) 79 #define PCI_POWER_ERROR ((pci_power_t __force) -1)
80 80
81 /** The pci_channel state describes connectivity between the CPU and 81 /** The pci_channel state describes connectivity between the CPU and
82 * the pci device. If some PCI bus between here and the pci device 82 * the pci device. If some PCI bus between here and the pci device
83 * has crashed or locked up, this info is reflected here. 83 * has crashed or locked up, this info is reflected here.
84 */ 84 */
85 typedef unsigned int __bitwise pci_channel_state_t; 85 typedef unsigned int __bitwise pci_channel_state_t;
86 86
87 enum pci_channel_state { 87 enum pci_channel_state {
88 /* I/O channel is in normal state */ 88 /* I/O channel is in normal state */
89 pci_channel_io_normal = (__force pci_channel_state_t) 1, 89 pci_channel_io_normal = (__force pci_channel_state_t) 1,
90 90
91 /* I/O to channel is blocked */ 91 /* I/O to channel is blocked */
92 pci_channel_io_frozen = (__force pci_channel_state_t) 2, 92 pci_channel_io_frozen = (__force pci_channel_state_t) 2,
93 93
94 /* PCI card is dead */ 94 /* PCI card is dead */
95 pci_channel_io_perm_failure = (__force pci_channel_state_t) 3, 95 pci_channel_io_perm_failure = (__force pci_channel_state_t) 3,
96 }; 96 };
97 97
98 typedef unsigned int __bitwise pcie_reset_state_t; 98 typedef unsigned int __bitwise pcie_reset_state_t;
99 99
100 enum pcie_reset_state { 100 enum pcie_reset_state {
101 /* Reset is NOT asserted (Use to deassert reset) */ 101 /* Reset is NOT asserted (Use to deassert reset) */
102 pcie_deassert_reset = (__force pcie_reset_state_t) 1, 102 pcie_deassert_reset = (__force pcie_reset_state_t) 1,
103 103
104 /* Use #PERST to reset PCI-E device */ 104 /* Use #PERST to reset PCI-E device */
105 pcie_warm_reset = (__force pcie_reset_state_t) 2, 105 pcie_warm_reset = (__force pcie_reset_state_t) 2,
106 106
107 /* Use PCI-E Hot Reset to reset device */ 107 /* Use PCI-E Hot Reset to reset device */
108 pcie_hot_reset = (__force pcie_reset_state_t) 3 108 pcie_hot_reset = (__force pcie_reset_state_t) 3
109 }; 109 };
110 110
111 typedef unsigned short __bitwise pci_dev_flags_t; 111 typedef unsigned short __bitwise pci_dev_flags_t;
112 enum pci_dev_flags { 112 enum pci_dev_flags {
113 /* INTX_DISABLE in PCI_COMMAND register disables MSI 113 /* INTX_DISABLE in PCI_COMMAND register disables MSI
114 * generation too. 114 * generation too.
115 */ 115 */
116 PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) 1, 116 PCI_DEV_FLAGS_MSI_INTX_DISABLE_BUG = (__force pci_dev_flags_t) 1,
117 }; 117 };
118 118
119 typedef unsigned short __bitwise pci_bus_flags_t; 119 typedef unsigned short __bitwise pci_bus_flags_t;
120 enum pci_bus_flags { 120 enum pci_bus_flags {
121 PCI_BUS_FLAGS_NO_MSI = (__force pci_bus_flags_t) 1, 121 PCI_BUS_FLAGS_NO_MSI = (__force pci_bus_flags_t) 1,
122 PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2, 122 PCI_BUS_FLAGS_NO_MMRBC = (__force pci_bus_flags_t) 2,
123 }; 123 };
124 124
125 struct pci_cap_saved_state { 125 struct pci_cap_saved_state {
126 struct hlist_node next; 126 struct hlist_node next;
127 char cap_nr; 127 char cap_nr;
128 u32 data[0]; 128 u32 data[0];
129 }; 129 };
130 130
131 /* 131 /*
132 * The pci_dev structure is used to describe PCI devices. 132 * The pci_dev structure is used to describe PCI devices.
133 */ 133 */
134 struct pci_dev { 134 struct pci_dev {
135 struct list_head global_list; /* node in list of all PCI devices */ 135 struct list_head global_list; /* node in list of all PCI devices */
136 struct list_head bus_list; /* node in per-bus list */ 136 struct list_head bus_list; /* node in per-bus list */
137 struct pci_bus *bus; /* bus this device is on */ 137 struct pci_bus *bus; /* bus this device is on */
138 struct pci_bus *subordinate; /* bus this device bridges to */ 138 struct pci_bus *subordinate; /* bus this device bridges to */
139 139
140 void *sysdata; /* hook for sys-specific extension */ 140 void *sysdata; /* hook for sys-specific extension */
141 struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */ 141 struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */
142 142
143 unsigned int devfn; /* encoded device & function index */ 143 unsigned int devfn; /* encoded device & function index */
144 unsigned short vendor; 144 unsigned short vendor;
145 unsigned short device; 145 unsigned short device;
146 unsigned short subsystem_vendor; 146 unsigned short subsystem_vendor;
147 unsigned short subsystem_device; 147 unsigned short subsystem_device;
148 unsigned int class; /* 3 bytes: (base,sub,prog-if) */ 148 unsigned int class; /* 3 bytes: (base,sub,prog-if) */
149 u8 revision; /* PCI revision, low byte of class word */ 149 u8 revision; /* PCI revision, low byte of class word */
150 u8 hdr_type; /* PCI header type (`multi' flag masked out) */ 150 u8 hdr_type; /* PCI header type (`multi' flag masked out) */
151 u8 pcie_type; /* PCI-E device/port type */ 151 u8 pcie_type; /* PCI-E device/port type */
152 u8 rom_base_reg; /* which config register controls the ROM */ 152 u8 rom_base_reg; /* which config register controls the ROM */
153 u8 pin; /* which interrupt pin this device uses */ 153 u8 pin; /* which interrupt pin this device uses */
154 154
155 struct pci_driver *driver; /* which driver has allocated this device */ 155 struct pci_driver *driver; /* which driver has allocated this device */
156 u64 dma_mask; /* Mask of the bits of bus address this 156 u64 dma_mask; /* Mask of the bits of bus address this
157 device implements. Normally this is 157 device implements. Normally this is
158 0xffffffff. You only need to change 158 0xffffffff. You only need to change
159 this if your device has broken DMA 159 this if your device has broken DMA
160 or supports 64-bit transfers. */ 160 or supports 64-bit transfers. */
161 161
162 struct device_dma_parameters dma_parms; 162 struct device_dma_parameters dma_parms;
163 163
164 pci_power_t current_state; /* Current operating state. In ACPI-speak, 164 pci_power_t current_state; /* Current operating state. In ACPI-speak,
165 this is D0-D3, D0 being fully functional, 165 this is D0-D3, D0 being fully functional,
166 and D3 being off. */ 166 and D3 being off. */
167 167
168 pci_channel_state_t error_state; /* current connectivity state */ 168 pci_channel_state_t error_state; /* current connectivity state */
169 struct device dev; /* Generic device interface */ 169 struct device dev; /* Generic device interface */
170 170
171 int cfg_size; /* Size of configuration space */ 171 int cfg_size; /* Size of configuration space */
172 172
173 /* 173 /*
174 * Instead of touching interrupt line and base address registers 174 * Instead of touching interrupt line and base address registers
175 * directly, use the values stored here. They might be different! 175 * directly, use the values stored here. They might be different!
176 */ 176 */
177 unsigned int irq; 177 unsigned int irq;
178 struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */ 178 struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */
179 179
180 /* These fields are used by common fixups */ 180 /* These fields are used by common fixups */
181 unsigned int transparent:1; /* Transparent PCI bridge */ 181 unsigned int transparent:1; /* Transparent PCI bridge */
182 unsigned int multifunction:1;/* Part of multi-function device */ 182 unsigned int multifunction:1;/* Part of multi-function device */
183 /* keep track of device state */ 183 /* keep track of device state */
184 unsigned int is_busmaster:1; /* device is busmaster */ 184 unsigned int is_busmaster:1; /* device is busmaster */
185 unsigned int no_msi:1; /* device may not use msi */ 185 unsigned int no_msi:1; /* device may not use msi */
186 unsigned int no_d1d2:1; /* only allow d0 or d3 */ 186 unsigned int no_d1d2:1; /* only allow d0 or d3 */
187 unsigned int block_ucfg_access:1; /* userspace config space access is blocked */ 187 unsigned int block_ucfg_access:1; /* userspace config space access is blocked */
188 unsigned int broken_parity_status:1; /* Device generates false positive parity */ 188 unsigned int broken_parity_status:1; /* Device generates false positive parity */
189 unsigned int msi_enabled:1; 189 unsigned int msi_enabled:1;
190 unsigned int msix_enabled:1; 190 unsigned int msix_enabled:1;
191 unsigned int is_managed:1; 191 unsigned int is_managed:1;
192 unsigned int is_pcie:1; 192 unsigned int is_pcie:1;
193 pci_dev_flags_t dev_flags; 193 pci_dev_flags_t dev_flags;
194 atomic_t enable_cnt; /* pci_enable_device has been called */ 194 atomic_t enable_cnt; /* pci_enable_device has been called */
195 195
196 u32 saved_config_space[16]; /* config space saved at suspend time */ 196 u32 saved_config_space[16]; /* config space saved at suspend time */
197 struct hlist_head saved_cap_space; 197 struct hlist_head saved_cap_space;
198 struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */ 198 struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
199 int rom_attr_enabled; /* has display of the rom attribute been enabled? */ 199 int rom_attr_enabled; /* has display of the rom attribute been enabled? */
200 struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */ 200 struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
201 #ifdef CONFIG_PCI_MSI 201 #ifdef CONFIG_PCI_MSI
202 struct list_head msi_list; 202 struct list_head msi_list;
203 #endif 203 #endif
204 }; 204 };
205 205
206 extern struct pci_dev *alloc_pci_dev(void); 206 extern struct pci_dev *alloc_pci_dev(void);
207 207
208 #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list) 208 #define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
209 #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list) 209 #define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
210 #define to_pci_dev(n) container_of(n, struct pci_dev, dev) 210 #define to_pci_dev(n) container_of(n, struct pci_dev, dev)
211 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL) 211 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
212 212
213 static inline int pci_channel_offline(struct pci_dev *pdev) 213 static inline int pci_channel_offline(struct pci_dev *pdev)
214 { 214 {
215 return (pdev->error_state != pci_channel_io_normal); 215 return (pdev->error_state != pci_channel_io_normal);
216 } 216 }
217 217
218 static inline struct pci_cap_saved_state *pci_find_saved_cap( 218 static inline struct pci_cap_saved_state *pci_find_saved_cap(
219 struct pci_dev *pci_dev, char cap) 219 struct pci_dev *pci_dev, char cap)
220 { 220 {
221 struct pci_cap_saved_state *tmp; 221 struct pci_cap_saved_state *tmp;
222 struct hlist_node *pos; 222 struct hlist_node *pos;
223 223
224 hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) { 224 hlist_for_each_entry(tmp, pos, &pci_dev->saved_cap_space, next) {
225 if (tmp->cap_nr == cap) 225 if (tmp->cap_nr == cap)
226 return tmp; 226 return tmp;
227 } 227 }
228 return NULL; 228 return NULL;
229 } 229 }
230 230
231 static inline void pci_add_saved_cap(struct pci_dev *pci_dev, 231 static inline void pci_add_saved_cap(struct pci_dev *pci_dev,
232 struct pci_cap_saved_state *new_cap) 232 struct pci_cap_saved_state *new_cap)
233 { 233 {
234 hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space); 234 hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
235 } 235 }
236 236
237 /* 237 /*
238 * For PCI devices, the region numbers are assigned this way: 238 * For PCI devices, the region numbers are assigned this way:
239 * 239 *
240 * 0-5 standard PCI regions 240 * 0-5 standard PCI regions
241 * 6 expansion ROM 241 * 6 expansion ROM
242 * 7-10 bridges: address space assigned to buses behind the bridge 242 * 7-10 bridges: address space assigned to buses behind the bridge
243 */ 243 */
244 244
245 #define PCI_ROM_RESOURCE 6 245 #define PCI_ROM_RESOURCE 6
246 #define PCI_BRIDGE_RESOURCES 7 246 #define PCI_BRIDGE_RESOURCES 7
247 #define PCI_NUM_RESOURCES 11 247 #define PCI_NUM_RESOURCES 11
248 248
249 #ifndef PCI_BUS_NUM_RESOURCES 249 #ifndef PCI_BUS_NUM_RESOURCES
250 #define PCI_BUS_NUM_RESOURCES 8 250 #define PCI_BUS_NUM_RESOURCES 8
251 #endif 251 #endif
252 252
253 #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */ 253 #define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */
254 254
255 struct pci_bus { 255 struct pci_bus {
256 struct list_head node; /* node in list of buses */ 256 struct list_head node; /* node in list of buses */
257 struct pci_bus *parent; /* parent bus this bridge is on */ 257 struct pci_bus *parent; /* parent bus this bridge is on */
258 struct list_head children; /* list of child buses */ 258 struct list_head children; /* list of child buses */
259 struct list_head devices; /* list of devices on this bus */ 259 struct list_head devices; /* list of devices on this bus */
260 struct pci_dev *self; /* bridge device as seen by parent */ 260 struct pci_dev *self; /* bridge device as seen by parent */
261 struct resource *resource[PCI_BUS_NUM_RESOURCES]; 261 struct resource *resource[PCI_BUS_NUM_RESOURCES];
262 /* address space routed to this bus */ 262 /* address space routed to this bus */
263 263
264 struct pci_ops *ops; /* configuration access functions */ 264 struct pci_ops *ops; /* configuration access functions */
265 void *sysdata; /* hook for sys-specific extension */ 265 void *sysdata; /* hook for sys-specific extension */
266 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */ 266 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */
267 267
268 unsigned char number; /* bus number */ 268 unsigned char number; /* bus number */
269 unsigned char primary; /* number of primary bridge */ 269 unsigned char primary; /* number of primary bridge */
270 unsigned char secondary; /* number of secondary bridge */ 270 unsigned char secondary; /* number of secondary bridge */
271 unsigned char subordinate; /* max number of subordinate buses */ 271 unsigned char subordinate; /* max number of subordinate buses */
272 272
273 char name[48]; 273 char name[48];
274 274
275 unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */ 275 unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */
276 pci_bus_flags_t bus_flags; /* Inherited by child busses */ 276 pci_bus_flags_t bus_flags; /* Inherited by child busses */
277 struct device *bridge; 277 struct device *bridge;
278 struct device dev; 278 struct device dev;
279 struct bin_attribute *legacy_io; /* legacy I/O for this bus */ 279 struct bin_attribute *legacy_io; /* legacy I/O for this bus */
280 struct bin_attribute *legacy_mem; /* legacy mem */ 280 struct bin_attribute *legacy_mem; /* legacy mem */
281 unsigned int is_added:1;
281 }; 282 };
282 283
283 #define pci_bus_b(n) list_entry(n, struct pci_bus, node) 284 #define pci_bus_b(n) list_entry(n, struct pci_bus, node)
284 #define to_pci_bus(n) container_of(n, struct pci_bus, dev) 285 #define to_pci_bus(n) container_of(n, struct pci_bus, dev)
285 286
286 /* 287 /*
287 * Error values that may be returned by PCI functions. 288 * Error values that may be returned by PCI functions.
288 */ 289 */
289 #define PCIBIOS_SUCCESSFUL 0x00 290 #define PCIBIOS_SUCCESSFUL 0x00
290 #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81 291 #define PCIBIOS_FUNC_NOT_SUPPORTED 0x81
291 #define PCIBIOS_BAD_VENDOR_ID 0x83 292 #define PCIBIOS_BAD_VENDOR_ID 0x83
292 #define PCIBIOS_DEVICE_NOT_FOUND 0x86 293 #define PCIBIOS_DEVICE_NOT_FOUND 0x86
293 #define PCIBIOS_BAD_REGISTER_NUMBER 0x87 294 #define PCIBIOS_BAD_REGISTER_NUMBER 0x87
294 #define PCIBIOS_SET_FAILED 0x88 295 #define PCIBIOS_SET_FAILED 0x88
295 #define PCIBIOS_BUFFER_TOO_SMALL 0x89 296 #define PCIBIOS_BUFFER_TOO_SMALL 0x89
296 297
297 /* Low-level architecture-dependent routines */ 298 /* Low-level architecture-dependent routines */
298 299
299 struct pci_ops { 300 struct pci_ops {
300 int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val); 301 int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val);
301 int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val); 302 int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val);
302 }; 303 };
303 304
304 /* 305 /*
305 * ACPI needs to be able to access PCI config space before we've done a 306 * ACPI needs to be able to access PCI config space before we've done a
306 * PCI bus scan and created pci_bus structures. 307 * PCI bus scan and created pci_bus structures.
307 */ 308 */
308 extern int raw_pci_read(unsigned int domain, unsigned int bus, 309 extern int raw_pci_read(unsigned int domain, unsigned int bus,
309 unsigned int devfn, int reg, int len, u32 *val); 310 unsigned int devfn, int reg, int len, u32 *val);
310 extern int raw_pci_write(unsigned int domain, unsigned int bus, 311 extern int raw_pci_write(unsigned int domain, unsigned int bus,
311 unsigned int devfn, int reg, int len, u32 val); 312 unsigned int devfn, int reg, int len, u32 val);
312 313
313 struct pci_bus_region { 314 struct pci_bus_region {
314 resource_size_t start; 315 resource_size_t start;
315 resource_size_t end; 316 resource_size_t end;
316 }; 317 };
317 318
318 struct pci_dynids { 319 struct pci_dynids {
319 spinlock_t lock; /* protects list, index */ 320 spinlock_t lock; /* protects list, index */
320 struct list_head list; /* for IDs added at runtime */ 321 struct list_head list; /* for IDs added at runtime */
321 unsigned int use_driver_data:1; /* pci_driver->driver_data is used */ 322 unsigned int use_driver_data:1; /* pci_driver->driver_data is used */
322 }; 323 };
323 324
324 /* ---------------------------------------------------------------- */ 325 /* ---------------------------------------------------------------- */
325 /** PCI Error Recovery System (PCI-ERS). If a PCI device driver provides 326 /** PCI Error Recovery System (PCI-ERS). If a PCI device driver provides
326 * a set of callbacks in struct pci_error_handlers, then that device driver 327 * a set of callbacks in struct pci_error_handlers, then that device driver
327 * will be notified of PCI bus errors, and will be driven to recovery 328 * will be notified of PCI bus errors, and will be driven to recovery
328 * when an error occurs. 329 * when an error occurs.
329 */ 330 */
330 331
331 typedef unsigned int __bitwise pci_ers_result_t; 332 typedef unsigned int __bitwise pci_ers_result_t;
332 333
333 enum pci_ers_result { 334 enum pci_ers_result {
334 /* no result/none/not supported in device driver */ 335 /* no result/none/not supported in device driver */
335 PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1, 336 PCI_ERS_RESULT_NONE = (__force pci_ers_result_t) 1,
336 337
337 /* Device driver can recover without slot reset */ 338 /* Device driver can recover without slot reset */
338 PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2, 339 PCI_ERS_RESULT_CAN_RECOVER = (__force pci_ers_result_t) 2,
339 340
340 /* Device driver wants slot to be reset. */ 341 /* Device driver wants slot to be reset. */
341 PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3, 342 PCI_ERS_RESULT_NEED_RESET = (__force pci_ers_result_t) 3,
342 343
343 /* Device has completely failed, is unrecoverable */ 344 /* Device has completely failed, is unrecoverable */
344 PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4, 345 PCI_ERS_RESULT_DISCONNECT = (__force pci_ers_result_t) 4,
345 346
346 /* Device driver is fully recovered and operational */ 347 /* Device driver is fully recovered and operational */
347 PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5, 348 PCI_ERS_RESULT_RECOVERED = (__force pci_ers_result_t) 5,
348 }; 349 };
349 350
350 /* PCI bus error event callbacks */ 351 /* PCI bus error event callbacks */
351 struct pci_error_handlers { 352 struct pci_error_handlers {
352 /* PCI bus error detected on this device */ 353 /* PCI bus error detected on this device */
353 pci_ers_result_t (*error_detected)(struct pci_dev *dev, 354 pci_ers_result_t (*error_detected)(struct pci_dev *dev,
354 enum pci_channel_state error); 355 enum pci_channel_state error);
355 356
356 /* MMIO has been re-enabled, but not DMA */ 357 /* MMIO has been re-enabled, but not DMA */
357 pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev); 358 pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev);
358 359
359 /* PCI Express link has been reset */ 360 /* PCI Express link has been reset */
360 pci_ers_result_t (*link_reset)(struct pci_dev *dev); 361 pci_ers_result_t (*link_reset)(struct pci_dev *dev);
361 362
362 /* PCI slot has been reset */ 363 /* PCI slot has been reset */
363 pci_ers_result_t (*slot_reset)(struct pci_dev *dev); 364 pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
364 365
365 /* Device driver may resume normal operations */ 366 /* Device driver may resume normal operations */
366 void (*resume)(struct pci_dev *dev); 367 void (*resume)(struct pci_dev *dev);
367 }; 368 };
368 369
369 /* ---------------------------------------------------------------- */ 370 /* ---------------------------------------------------------------- */
370 371
371 struct module; 372 struct module;
372 struct pci_driver { 373 struct pci_driver {
373 struct list_head node; 374 struct list_head node;
374 char *name; 375 char *name;
375 const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */ 376 const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */
376 int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */ 377 int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */
377 void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */ 378 void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
378 int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ 379 int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */
379 int (*suspend_late) (struct pci_dev *dev, pm_message_t state); 380 int (*suspend_late) (struct pci_dev *dev, pm_message_t state);
380 int (*resume_early) (struct pci_dev *dev); 381 int (*resume_early) (struct pci_dev *dev);
381 int (*resume) (struct pci_dev *dev); /* Device woken up */ 382 int (*resume) (struct pci_dev *dev); /* Device woken up */
382 void (*shutdown) (struct pci_dev *dev); 383 void (*shutdown) (struct pci_dev *dev);
383 384
384 struct pci_error_handlers *err_handler; 385 struct pci_error_handlers *err_handler;
385 struct device_driver driver; 386 struct device_driver driver;
386 struct pci_dynids dynids; 387 struct pci_dynids dynids;
387 }; 388 };
388 389
389 #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver) 390 #define to_pci_driver(drv) container_of(drv, struct pci_driver, driver)
390 391
391 /** 392 /**
392 * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table 393 * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
393 * @_table: device table name 394 * @_table: device table name
394 * 395 *
395 * This macro is used to create a struct pci_device_id array (a device table) 396 * This macro is used to create a struct pci_device_id array (a device table)
396 * in a generic manner. 397 * in a generic manner.
397 */ 398 */
398 #define DEFINE_PCI_DEVICE_TABLE(_table) \ 399 #define DEFINE_PCI_DEVICE_TABLE(_table) \
399 const struct pci_device_id _table[] __devinitconst 400 const struct pci_device_id _table[] __devinitconst
400 401
401 /** 402 /**
402 * PCI_DEVICE - macro used to describe a specific pci device 403 * PCI_DEVICE - macro used to describe a specific pci device
403 * @vend: the 16 bit PCI Vendor ID 404 * @vend: the 16 bit PCI Vendor ID
404 * @dev: the 16 bit PCI Device ID 405 * @dev: the 16 bit PCI Device ID
405 * 406 *
406 * This macro is used to create a struct pci_device_id that matches a 407 * This macro is used to create a struct pci_device_id that matches a
407 * specific device. The subvendor and subdevice fields will be set to 408 * specific device. The subvendor and subdevice fields will be set to
408 * PCI_ANY_ID. 409 * PCI_ANY_ID.
409 */ 410 */
410 #define PCI_DEVICE(vend,dev) \ 411 #define PCI_DEVICE(vend,dev) \
411 .vendor = (vend), .device = (dev), \ 412 .vendor = (vend), .device = (dev), \
412 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID 413 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
413 414
414 /** 415 /**
415 * PCI_DEVICE_CLASS - macro used to describe a specific pci device class 416 * PCI_DEVICE_CLASS - macro used to describe a specific pci device class
416 * @dev_class: the class, subclass, prog-if triple for this device 417 * @dev_class: the class, subclass, prog-if triple for this device
417 * @dev_class_mask: the class mask for this device 418 * @dev_class_mask: the class mask for this device
418 * 419 *
419 * This macro is used to create a struct pci_device_id that matches a 420 * This macro is used to create a struct pci_device_id that matches a
420 * specific PCI class. The vendor, device, subvendor, and subdevice 421 * specific PCI class. The vendor, device, subvendor, and subdevice
421 * fields will be set to PCI_ANY_ID. 422 * fields will be set to PCI_ANY_ID.
422 */ 423 */
423 #define PCI_DEVICE_CLASS(dev_class,dev_class_mask) \ 424 #define PCI_DEVICE_CLASS(dev_class,dev_class_mask) \
424 .class = (dev_class), .class_mask = (dev_class_mask), \ 425 .class = (dev_class), .class_mask = (dev_class_mask), \
425 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \ 426 .vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \
426 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID 427 .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
427 428
428 /** 429 /**
429 * PCI_VDEVICE - macro used to describe a specific pci device in short form 430 * PCI_VDEVICE - macro used to describe a specific pci device in short form
430 * @vend: the vendor name 431 * @vend: the vendor name
431 * @dev: the 16 bit PCI Device ID 432 * @dev: the 16 bit PCI Device ID
432 * 433 *
433 * This macro is used to create a struct pci_device_id that matches a 434 * This macro is used to create a struct pci_device_id that matches a
434 * specific PCI device. The subvendor, and subdevice fields will be set 435 * specific PCI device. The subvendor, and subdevice fields will be set
435 * to PCI_ANY_ID. The macro allows the next field to follow as the device 436 * to PCI_ANY_ID. The macro allows the next field to follow as the device
436 * private data. 437 * private data.
437 */ 438 */
438 439
439 #define PCI_VDEVICE(vendor, device) \ 440 #define PCI_VDEVICE(vendor, device) \
440 PCI_VENDOR_ID_##vendor, (device), \ 441 PCI_VENDOR_ID_##vendor, (device), \
441 PCI_ANY_ID, PCI_ANY_ID, 0, 0 442 PCI_ANY_ID, PCI_ANY_ID, 0, 0
442 443
443 /* these external functions are only available when PCI support is enabled */ 444 /* these external functions are only available when PCI support is enabled */
444 #ifdef CONFIG_PCI 445 #ifdef CONFIG_PCI
445 446
446 extern struct bus_type pci_bus_type; 447 extern struct bus_type pci_bus_type;
447 448
448 /* Do NOT directly access these two variables, unless you are arch specific pci 449 /* Do NOT directly access these two variables, unless you are arch specific pci
449 * code, or pci core code. */ 450 * code, or pci core code. */
450 extern struct list_head pci_root_buses; /* list of all known PCI buses */ 451 extern struct list_head pci_root_buses; /* list of all known PCI buses */
451 extern struct list_head pci_devices; /* list of all devices */ 452 extern struct list_head pci_devices; /* list of all devices */
452 /* Some device drivers need know if pci is initiated */ 453 /* Some device drivers need know if pci is initiated */
453 extern int no_pci_devices(void); 454 extern int no_pci_devices(void);
454 455
455 void pcibios_fixup_bus(struct pci_bus *); 456 void pcibios_fixup_bus(struct pci_bus *);
456 int __must_check pcibios_enable_device(struct pci_dev *, int mask); 457 int __must_check pcibios_enable_device(struct pci_dev *, int mask);
457 char *pcibios_setup(char *str); 458 char *pcibios_setup(char *str);
458 459
459 /* Used only when drivers/pci/setup.c is used */ 460 /* Used only when drivers/pci/setup.c is used */
460 void pcibios_align_resource(void *, struct resource *, resource_size_t, 461 void pcibios_align_resource(void *, struct resource *, resource_size_t,
461 resource_size_t); 462 resource_size_t);
462 void pcibios_update_irq(struct pci_dev *, int irq); 463 void pcibios_update_irq(struct pci_dev *, int irq);
463 464
464 /* Generic PCI functions used internally */ 465 /* Generic PCI functions used internally */
465 466
466 extern struct pci_bus *pci_find_bus(int domain, int busnr); 467 extern struct pci_bus *pci_find_bus(int domain, int busnr);
467 void pci_bus_add_devices(struct pci_bus *bus); 468 void pci_bus_add_devices(struct pci_bus *bus);
468 struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, 469 struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus,
469 struct pci_ops *ops, void *sysdata); 470 struct pci_ops *ops, void *sysdata);
470 static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, 471 static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops,
471 void *sysdata) 472 void *sysdata)
472 { 473 {
473 struct pci_bus *root_bus; 474 struct pci_bus *root_bus;
474 root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata); 475 root_bus = pci_scan_bus_parented(NULL, bus, ops, sysdata);
475 if (root_bus) 476 if (root_bus)
476 pci_bus_add_devices(root_bus); 477 pci_bus_add_devices(root_bus);
477 return root_bus; 478 return root_bus;
478 } 479 }
479 struct pci_bus *pci_create_bus(struct device *parent, int bus, 480 struct pci_bus *pci_create_bus(struct device *parent, int bus,
480 struct pci_ops *ops, void *sysdata); 481 struct pci_ops *ops, void *sysdata);
481 struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev, 482 struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
482 int busnr); 483 int busnr);
483 int pci_scan_slot(struct pci_bus *bus, int devfn); 484 int pci_scan_slot(struct pci_bus *bus, int devfn);
484 struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn); 485 struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
485 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus); 486 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
486 unsigned int pci_scan_child_bus(struct pci_bus *bus); 487 unsigned int pci_scan_child_bus(struct pci_bus *bus);
487 int __must_check pci_bus_add_device(struct pci_dev *dev); 488 int __must_check pci_bus_add_device(struct pci_dev *dev);
488 void pci_read_bridge_bases(struct pci_bus *child); 489 void pci_read_bridge_bases(struct pci_bus *child);
489 struct resource *pci_find_parent_resource(const struct pci_dev *dev, 490 struct resource *pci_find_parent_resource(const struct pci_dev *dev,
490 struct resource *res); 491 struct resource *res);
491 int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge); 492 int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
492 extern struct pci_dev *pci_dev_get(struct pci_dev *dev); 493 extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
493 extern void pci_dev_put(struct pci_dev *dev); 494 extern void pci_dev_put(struct pci_dev *dev);
494 extern void pci_remove_bus(struct pci_bus *b); 495 extern void pci_remove_bus(struct pci_bus *b);
495 extern void pci_remove_bus_device(struct pci_dev *dev); 496 extern void pci_remove_bus_device(struct pci_dev *dev);
496 extern void pci_stop_bus_device(struct pci_dev *dev); 497 extern void pci_stop_bus_device(struct pci_dev *dev);
497 void pci_setup_cardbus(struct pci_bus *bus); 498 void pci_setup_cardbus(struct pci_bus *bus);
498 extern void pci_sort_breadthfirst(void); 499 extern void pci_sort_breadthfirst(void);
499 500
500 /* Generic PCI functions exported to card drivers */ 501 /* Generic PCI functions exported to card drivers */
501 502
502 #ifdef CONFIG_PCI_LEGACY 503 #ifdef CONFIG_PCI_LEGACY
503 struct pci_dev __deprecated *pci_find_device(unsigned int vendor, 504 struct pci_dev __deprecated *pci_find_device(unsigned int vendor,
504 unsigned int device, 505 unsigned int device,
505 const struct pci_dev *from); 506 const struct pci_dev *from);
506 struct pci_dev __deprecated *pci_find_slot(unsigned int bus, 507 struct pci_dev __deprecated *pci_find_slot(unsigned int bus,
507 unsigned int devfn); 508 unsigned int devfn);
508 #endif /* CONFIG_PCI_LEGACY */ 509 #endif /* CONFIG_PCI_LEGACY */
509 510
510 int pci_find_capability(struct pci_dev *dev, int cap); 511 int pci_find_capability(struct pci_dev *dev, int cap);
511 int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap); 512 int pci_find_next_capability(struct pci_dev *dev, u8 pos, int cap);
512 int pci_find_ext_capability(struct pci_dev *dev, int cap); 513 int pci_find_ext_capability(struct pci_dev *dev, int cap);
513 int pci_find_ht_capability(struct pci_dev *dev, int ht_cap); 514 int pci_find_ht_capability(struct pci_dev *dev, int ht_cap);
514 int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap); 515 int pci_find_next_ht_capability(struct pci_dev *dev, int pos, int ht_cap);
515 void pcie_wait_pending_transaction(struct pci_dev *dev); 516 void pcie_wait_pending_transaction(struct pci_dev *dev);
516 struct pci_bus *pci_find_next_bus(const struct pci_bus *from); 517 struct pci_bus *pci_find_next_bus(const struct pci_bus *from);
517 518
518 struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device, 519 struct pci_dev *pci_get_device(unsigned int vendor, unsigned int device,
519 struct pci_dev *from); 520 struct pci_dev *from);
520 struct pci_dev *pci_get_device_reverse(unsigned int vendor, unsigned int device, 521 struct pci_dev *pci_get_device_reverse(unsigned int vendor, unsigned int device,
521 struct pci_dev *from); 522 struct pci_dev *from);
522 523
523 struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device, 524 struct pci_dev *pci_get_subsys(unsigned int vendor, unsigned int device,
524 unsigned int ss_vendor, unsigned int ss_device, 525 unsigned int ss_vendor, unsigned int ss_device,
525 struct pci_dev *from); 526 struct pci_dev *from);
526 struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn); 527 struct pci_dev *pci_get_slot(struct pci_bus *bus, unsigned int devfn);
527 struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn); 528 struct pci_dev *pci_get_bus_and_slot(unsigned int bus, unsigned int devfn);
528 struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from); 529 struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from);
529 int pci_dev_present(const struct pci_device_id *ids); 530 int pci_dev_present(const struct pci_device_id *ids);
530 const struct pci_device_id *pci_find_present(const struct pci_device_id *ids); 531 const struct pci_device_id *pci_find_present(const struct pci_device_id *ids);
531 532
532 int pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn, 533 int pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn,
533 int where, u8 *val); 534 int where, u8 *val);
534 int pci_bus_read_config_word(struct pci_bus *bus, unsigned int devfn, 535 int pci_bus_read_config_word(struct pci_bus *bus, unsigned int devfn,
535 int where, u16 *val); 536 int where, u16 *val);
536 int pci_bus_read_config_dword(struct pci_bus *bus, unsigned int devfn, 537 int pci_bus_read_config_dword(struct pci_bus *bus, unsigned int devfn,
537 int where, u32 *val); 538 int where, u32 *val);
538 int pci_bus_write_config_byte(struct pci_bus *bus, unsigned int devfn, 539 int pci_bus_write_config_byte(struct pci_bus *bus, unsigned int devfn,
539 int where, u8 val); 540 int where, u8 val);
540 int pci_bus_write_config_word(struct pci_bus *bus, unsigned int devfn, 541 int pci_bus_write_config_word(struct pci_bus *bus, unsigned int devfn,
541 int where, u16 val); 542 int where, u16 val);
542 int pci_bus_write_config_dword(struct pci_bus *bus, unsigned int devfn, 543 int pci_bus_write_config_dword(struct pci_bus *bus, unsigned int devfn,
543 int where, u32 val); 544 int where, u32 val);
544 545
545 static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val) 546 static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
546 { 547 {
547 return pci_bus_read_config_byte(dev->bus, dev->devfn, where, val); 548 return pci_bus_read_config_byte(dev->bus, dev->devfn, where, val);
548 } 549 }
549 static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val) 550 static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
550 { 551 {
551 return pci_bus_read_config_word(dev->bus, dev->devfn, where, val); 552 return pci_bus_read_config_word(dev->bus, dev->devfn, where, val);
552 } 553 }
553 static inline int pci_read_config_dword(struct pci_dev *dev, int where, 554 static inline int pci_read_config_dword(struct pci_dev *dev, int where,
554 u32 *val) 555 u32 *val)
555 { 556 {
556 return pci_bus_read_config_dword(dev->bus, dev->devfn, where, val); 557 return pci_bus_read_config_dword(dev->bus, dev->devfn, where, val);
557 } 558 }
558 static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val) 559 static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
559 { 560 {
560 return pci_bus_write_config_byte(dev->bus, dev->devfn, where, val); 561 return pci_bus_write_config_byte(dev->bus, dev->devfn, where, val);
561 } 562 }
562 static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val) 563 static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
563 { 564 {
564 return pci_bus_write_config_word(dev->bus, dev->devfn, where, val); 565 return pci_bus_write_config_word(dev->bus, dev->devfn, where, val);
565 } 566 }
566 static inline int pci_write_config_dword(struct pci_dev *dev, int where, 567 static inline int pci_write_config_dword(struct pci_dev *dev, int where,
567 u32 val) 568 u32 val)
568 { 569 {
569 return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val); 570 return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val);
570 } 571 }
571 572
572 int __must_check pci_enable_device(struct pci_dev *dev); 573 int __must_check pci_enable_device(struct pci_dev *dev);
573 int __must_check pci_enable_device_io(struct pci_dev *dev); 574 int __must_check pci_enable_device_io(struct pci_dev *dev);
574 int __must_check pci_enable_device_mem(struct pci_dev *dev); 575 int __must_check pci_enable_device_mem(struct pci_dev *dev);
575 int __must_check pci_reenable_device(struct pci_dev *); 576 int __must_check pci_reenable_device(struct pci_dev *);
576 int __must_check pcim_enable_device(struct pci_dev *pdev); 577 int __must_check pcim_enable_device(struct pci_dev *pdev);
577 void pcim_pin_device(struct pci_dev *pdev); 578 void pcim_pin_device(struct pci_dev *pdev);
578 579
579 static inline int pci_is_managed(struct pci_dev *pdev) 580 static inline int pci_is_managed(struct pci_dev *pdev)
580 { 581 {
581 return pdev->is_managed; 582 return pdev->is_managed;
582 } 583 }
583 584
584 void pci_disable_device(struct pci_dev *dev); 585 void pci_disable_device(struct pci_dev *dev);
585 void pci_set_master(struct pci_dev *dev); 586 void pci_set_master(struct pci_dev *dev);
586 int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state); 587 int pci_set_pcie_reset_state(struct pci_dev *dev, enum pcie_reset_state state);
587 #define HAVE_PCI_SET_MWI 588 #define HAVE_PCI_SET_MWI
588 int __must_check pci_set_mwi(struct pci_dev *dev); 589 int __must_check pci_set_mwi(struct pci_dev *dev);
589 int pci_try_set_mwi(struct pci_dev *dev); 590 int pci_try_set_mwi(struct pci_dev *dev);
590 void pci_clear_mwi(struct pci_dev *dev); 591 void pci_clear_mwi(struct pci_dev *dev);
591 void pci_intx(struct pci_dev *dev, int enable); 592 void pci_intx(struct pci_dev *dev, int enable);
592 void pci_msi_off(struct pci_dev *dev); 593 void pci_msi_off(struct pci_dev *dev);
593 int pci_set_dma_mask(struct pci_dev *dev, u64 mask); 594 int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
594 int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask); 595 int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
595 int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size); 596 int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
596 int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask); 597 int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask);
597 int pcix_get_max_mmrbc(struct pci_dev *dev); 598 int pcix_get_max_mmrbc(struct pci_dev *dev);
598 int pcix_get_mmrbc(struct pci_dev *dev); 599 int pcix_get_mmrbc(struct pci_dev *dev);
599 int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc); 600 int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc);
600 int pcie_get_readrq(struct pci_dev *dev); 601 int pcie_get_readrq(struct pci_dev *dev);
601 int pcie_set_readrq(struct pci_dev *dev, int rq); 602 int pcie_set_readrq(struct pci_dev *dev, int rq);
602 void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno); 603 void pci_update_resource(struct pci_dev *dev, struct resource *res, int resno);
603 int __must_check pci_assign_resource(struct pci_dev *dev, int i); 604 int __must_check pci_assign_resource(struct pci_dev *dev, int i);
604 int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i); 605 int __must_check pci_assign_resource_fixed(struct pci_dev *dev, int i);
605 int pci_select_bars(struct pci_dev *dev, unsigned long flags); 606 int pci_select_bars(struct pci_dev *dev, unsigned long flags);
606 607
607 /* ROM control related routines */ 608 /* ROM control related routines */
608 void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size); 609 void __iomem __must_check *pci_map_rom(struct pci_dev *pdev, size_t *size);
609 void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom); 610 void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
610 size_t pci_get_rom_size(void __iomem *rom, size_t size); 611 size_t pci_get_rom_size(void __iomem *rom, size_t size);
611 612
612 /* Power management related routines */ 613 /* Power management related routines */
613 int pci_save_state(struct pci_dev *dev); 614 int pci_save_state(struct pci_dev *dev);
614 int pci_restore_state(struct pci_dev *dev); 615 int pci_restore_state(struct pci_dev *dev);
615 int pci_set_power_state(struct pci_dev *dev, pci_power_t state); 616 int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
616 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state); 617 pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
617 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable); 618 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
618 619
619 /* Functions for PCI Hotplug drivers to use */ 620 /* Functions for PCI Hotplug drivers to use */
620 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap); 621 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
621 622
622 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */ 623 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
623 void pci_bus_assign_resources(struct pci_bus *bus); 624 void pci_bus_assign_resources(struct pci_bus *bus);
624 void pci_bus_size_bridges(struct pci_bus *bus); 625 void pci_bus_size_bridges(struct pci_bus *bus);
625 int pci_claim_resource(struct pci_dev *, int); 626 int pci_claim_resource(struct pci_dev *, int);
626 void pci_assign_unassigned_resources(void); 627 void pci_assign_unassigned_resources(void);
627 void pdev_enable_device(struct pci_dev *); 628 void pdev_enable_device(struct pci_dev *);
628 void pdev_sort_resources(struct pci_dev *, struct resource_list *); 629 void pdev_sort_resources(struct pci_dev *, struct resource_list *);
629 void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *), 630 void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
630 int (*)(struct pci_dev *, u8, u8)); 631 int (*)(struct pci_dev *, u8, u8));
631 #define HAVE_PCI_REQ_REGIONS 2 632 #define HAVE_PCI_REQ_REGIONS 2
632 int __must_check pci_request_regions(struct pci_dev *, const char *); 633 int __must_check pci_request_regions(struct pci_dev *, const char *);
633 void pci_release_regions(struct pci_dev *); 634 void pci_release_regions(struct pci_dev *);
634 int __must_check pci_request_region(struct pci_dev *, int, const char *); 635 int __must_check pci_request_region(struct pci_dev *, int, const char *);
635 void pci_release_region(struct pci_dev *, int); 636 void pci_release_region(struct pci_dev *, int);
636 int pci_request_selected_regions(struct pci_dev *, int, const char *); 637 int pci_request_selected_regions(struct pci_dev *, int, const char *);
637 void pci_release_selected_regions(struct pci_dev *, int); 638 void pci_release_selected_regions(struct pci_dev *, int);
638 639
639 /* drivers/pci/bus.c */ 640 /* drivers/pci/bus.c */
640 int __must_check pci_bus_alloc_resource(struct pci_bus *bus, 641 int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
641 struct resource *res, resource_size_t size, 642 struct resource *res, resource_size_t size,
642 resource_size_t align, resource_size_t min, 643 resource_size_t align, resource_size_t min,
643 unsigned int type_mask, 644 unsigned int type_mask,
644 void (*alignf)(void *, struct resource *, 645 void (*alignf)(void *, struct resource *,
645 resource_size_t, resource_size_t), 646 resource_size_t, resource_size_t),
646 void *alignf_data); 647 void *alignf_data);
647 void pci_enable_bridges(struct pci_bus *bus); 648 void pci_enable_bridges(struct pci_bus *bus);
648 649
649 /* Proper probing supporting hot-pluggable devices */ 650 /* Proper probing supporting hot-pluggable devices */
650 int __must_check __pci_register_driver(struct pci_driver *, struct module *, 651 int __must_check __pci_register_driver(struct pci_driver *, struct module *,
651 const char *mod_name); 652 const char *mod_name);
652 static inline int __must_check pci_register_driver(struct pci_driver *driver) 653 static inline int __must_check pci_register_driver(struct pci_driver *driver)
653 { 654 {
654 return __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME); 655 return __pci_register_driver(driver, THIS_MODULE, KBUILD_MODNAME);
655 } 656 }
656 657
657 void pci_unregister_driver(struct pci_driver *dev); 658 void pci_unregister_driver(struct pci_driver *dev);
658 void pci_remove_behind_bridge(struct pci_dev *dev); 659 void pci_remove_behind_bridge(struct pci_dev *dev);
659 struct pci_driver *pci_dev_driver(const struct pci_dev *dev); 660 struct pci_driver *pci_dev_driver(const struct pci_dev *dev);
660 const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, 661 const struct pci_device_id *pci_match_id(const struct pci_device_id *ids,
661 struct pci_dev *dev); 662 struct pci_dev *dev);
662 int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, 663 int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
663 int pass); 664 int pass);
664 665
665 void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *), 666 void pci_walk_bus(struct pci_bus *top, void (*cb)(struct pci_dev *, void *),
666 void *userdata); 667 void *userdata);
667 int pci_cfg_space_size(struct pci_dev *dev); 668 int pci_cfg_space_size(struct pci_dev *dev);
668 unsigned char pci_bus_max_busnr(struct pci_bus *bus); 669 unsigned char pci_bus_max_busnr(struct pci_bus *bus);
669 670
670 /* kmem_cache style wrapper around pci_alloc_consistent() */ 671 /* kmem_cache style wrapper around pci_alloc_consistent() */
671 672
672 #include <linux/dmapool.h> 673 #include <linux/dmapool.h>
673 674
674 #define pci_pool dma_pool 675 #define pci_pool dma_pool
675 #define pci_pool_create(name, pdev, size, align, allocation) \ 676 #define pci_pool_create(name, pdev, size, align, allocation) \
676 dma_pool_create(name, &pdev->dev, size, align, allocation) 677 dma_pool_create(name, &pdev->dev, size, align, allocation)
677 #define pci_pool_destroy(pool) dma_pool_destroy(pool) 678 #define pci_pool_destroy(pool) dma_pool_destroy(pool)
678 #define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle) 679 #define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
679 #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr) 680 #define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
680 681
681 enum pci_dma_burst_strategy { 682 enum pci_dma_burst_strategy {
682 PCI_DMA_BURST_INFINITY, /* make bursts as large as possible, 683 PCI_DMA_BURST_INFINITY, /* make bursts as large as possible,
683 strategy_parameter is N/A */ 684 strategy_parameter is N/A */
684 PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter 685 PCI_DMA_BURST_BOUNDARY, /* disconnect at every strategy_parameter
685 byte boundaries */ 686 byte boundaries */
686 PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of 687 PCI_DMA_BURST_MULTIPLE, /* disconnect at some multiple of
687 strategy_parameter byte boundaries */ 688 strategy_parameter byte boundaries */
688 }; 689 };
689 690
690 struct msix_entry { 691 struct msix_entry {
691 u16 vector; /* kernel uses to write allocated vector */ 692 u16 vector; /* kernel uses to write allocated vector */
692 u16 entry; /* driver uses to specify entry, OS writes */ 693 u16 entry; /* driver uses to specify entry, OS writes */
693 }; 694 };
694 695
695 696
696 #ifndef CONFIG_PCI_MSI 697 #ifndef CONFIG_PCI_MSI
697 static inline int pci_enable_msi(struct pci_dev *dev) 698 static inline int pci_enable_msi(struct pci_dev *dev)
698 { 699 {
699 return -1; 700 return -1;
700 } 701 }
701 702
702 static inline void pci_disable_msi(struct pci_dev *dev) 703 static inline void pci_disable_msi(struct pci_dev *dev)
703 { } 704 { }
704 705
705 static inline int pci_enable_msix(struct pci_dev *dev, 706 static inline int pci_enable_msix(struct pci_dev *dev,
706 struct msix_entry *entries, int nvec) 707 struct msix_entry *entries, int nvec)
707 { 708 {
708 return -1; 709 return -1;
709 } 710 }
710 711
711 static inline void pci_disable_msix(struct pci_dev *dev) 712 static inline void pci_disable_msix(struct pci_dev *dev)
712 { } 713 { }
713 714
714 static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) 715 static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev)
715 { } 716 { }
716 717
717 static inline void pci_restore_msi_state(struct pci_dev *dev) 718 static inline void pci_restore_msi_state(struct pci_dev *dev)
718 { } 719 { }
719 #else 720 #else
720 extern int pci_enable_msi(struct pci_dev *dev); 721 extern int pci_enable_msi(struct pci_dev *dev);
721 extern void pci_disable_msi(struct pci_dev *dev); 722 extern void pci_disable_msi(struct pci_dev *dev);
722 extern int pci_enable_msix(struct pci_dev *dev, 723 extern int pci_enable_msix(struct pci_dev *dev,
723 struct msix_entry *entries, int nvec); 724 struct msix_entry *entries, int nvec);
724 extern void pci_disable_msix(struct pci_dev *dev); 725 extern void pci_disable_msix(struct pci_dev *dev);
725 extern void msi_remove_pci_irq_vectors(struct pci_dev *dev); 726 extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
726 extern void pci_restore_msi_state(struct pci_dev *dev); 727 extern void pci_restore_msi_state(struct pci_dev *dev);
727 #endif 728 #endif
728 729
729 #ifdef CONFIG_HT_IRQ 730 #ifdef CONFIG_HT_IRQ
730 /* The functions a driver should call */ 731 /* The functions a driver should call */
731 int ht_create_irq(struct pci_dev *dev, int idx); 732 int ht_create_irq(struct pci_dev *dev, int idx);
732 void ht_destroy_irq(unsigned int irq); 733 void ht_destroy_irq(unsigned int irq);
733 #endif /* CONFIG_HT_IRQ */ 734 #endif /* CONFIG_HT_IRQ */
734 735
735 extern void pci_block_user_cfg_access(struct pci_dev *dev); 736 extern void pci_block_user_cfg_access(struct pci_dev *dev);
736 extern void pci_unblock_user_cfg_access(struct pci_dev *dev); 737 extern void pci_unblock_user_cfg_access(struct pci_dev *dev);
737 738
738 /* 739 /*
739 * PCI domain support. Sometimes called PCI segment (eg by ACPI), 740 * PCI domain support. Sometimes called PCI segment (eg by ACPI),
740 * a PCI domain is defined to be a set of PCI busses which share 741 * a PCI domain is defined to be a set of PCI busses which share
741 * configuration space. 742 * configuration space.
742 */ 743 */
743 #ifdef CONFIG_PCI_DOMAINS 744 #ifdef CONFIG_PCI_DOMAINS
744 extern int pci_domains_supported; 745 extern int pci_domains_supported;
745 #else 746 #else
746 enum { pci_domains_supported = 0 }; 747 enum { pci_domains_supported = 0 };
747 static inline int pci_domain_nr(struct pci_bus *bus) 748 static inline int pci_domain_nr(struct pci_bus *bus)
748 { 749 {
749 return 0; 750 return 0;
750 } 751 }
751 752
752 static inline int pci_proc_domain(struct pci_bus *bus) 753 static inline int pci_proc_domain(struct pci_bus *bus)
753 { 754 {
754 return 0; 755 return 0;
755 } 756 }
756 #endif /* CONFIG_PCI_DOMAINS */ 757 #endif /* CONFIG_PCI_DOMAINS */
757 758
758 #else /* CONFIG_PCI is not enabled */ 759 #else /* CONFIG_PCI is not enabled */
759 760
760 /* 761 /*
761 * If the system does not have PCI, clearly these return errors. Define 762 * If the system does not have PCI, clearly these return errors. Define
762 * these as simple inline functions to avoid hair in drivers. 763 * these as simple inline functions to avoid hair in drivers.
763 */ 764 */
764 765
765 #define _PCI_NOP(o, s, t) \ 766 #define _PCI_NOP(o, s, t) \
766 static inline int pci_##o##_config_##s(struct pci_dev *dev, \ 767 static inline int pci_##o##_config_##s(struct pci_dev *dev, \
767 int where, t val) \ 768 int where, t val) \
768 { return PCIBIOS_FUNC_NOT_SUPPORTED; } 769 { return PCIBIOS_FUNC_NOT_SUPPORTED; }
769 770
770 #define _PCI_NOP_ALL(o, x) _PCI_NOP(o, byte, u8 x) \ 771 #define _PCI_NOP_ALL(o, x) _PCI_NOP(o, byte, u8 x) \
771 _PCI_NOP(o, word, u16 x) \ 772 _PCI_NOP(o, word, u16 x) \
772 _PCI_NOP(o, dword, u32 x) 773 _PCI_NOP(o, dword, u32 x)
773 _PCI_NOP_ALL(read, *) 774 _PCI_NOP_ALL(read, *)
774 _PCI_NOP_ALL(write,) 775 _PCI_NOP_ALL(write,)
775 776
776 static inline struct pci_dev *pci_find_device(unsigned int vendor, 777 static inline struct pci_dev *pci_find_device(unsigned int vendor,
777 unsigned int device, 778 unsigned int device,
778 const struct pci_dev *from) 779 const struct pci_dev *from)
779 { 780 {
780 return NULL; 781 return NULL;
781 } 782 }
782 783
783 static inline struct pci_dev *pci_find_slot(unsigned int bus, 784 static inline struct pci_dev *pci_find_slot(unsigned int bus,
784 unsigned int devfn) 785 unsigned int devfn)
785 { 786 {
786 return NULL; 787 return NULL;
787 } 788 }
788 789
789 static inline struct pci_dev *pci_get_device(unsigned int vendor, 790 static inline struct pci_dev *pci_get_device(unsigned int vendor,
790 unsigned int device, 791 unsigned int device,
791 struct pci_dev *from) 792 struct pci_dev *from)
792 { 793 {
793 return NULL; 794 return NULL;
794 } 795 }
795 796
796 static inline struct pci_dev *pci_get_device_reverse(unsigned int vendor, 797 static inline struct pci_dev *pci_get_device_reverse(unsigned int vendor,
797 unsigned int device, 798 unsigned int device,
798 struct pci_dev *from) 799 struct pci_dev *from)
799 { 800 {
800 return NULL; 801 return NULL;
801 } 802 }
802 803
803 static inline struct pci_dev *pci_get_subsys(unsigned int vendor, 804 static inline struct pci_dev *pci_get_subsys(unsigned int vendor,
804 unsigned int device, 805 unsigned int device,
805 unsigned int ss_vendor, 806 unsigned int ss_vendor,
806 unsigned int ss_device, 807 unsigned int ss_device,
807 struct pci_dev *from) 808 struct pci_dev *from)
808 { 809 {
809 return NULL; 810 return NULL;
810 } 811 }
811 812
812 static inline struct pci_dev *pci_get_class(unsigned int class, 813 static inline struct pci_dev *pci_get_class(unsigned int class,
813 struct pci_dev *from) 814 struct pci_dev *from)
814 { 815 {
815 return NULL; 816 return NULL;
816 } 817 }
817 818
818 #define pci_dev_present(ids) (0) 819 #define pci_dev_present(ids) (0)
819 #define no_pci_devices() (1) 820 #define no_pci_devices() (1)
820 #define pci_find_present(ids) (NULL) 821 #define pci_find_present(ids) (NULL)
821 #define pci_dev_put(dev) do { } while (0) 822 #define pci_dev_put(dev) do { } while (0)
822 823
823 static inline void pci_set_master(struct pci_dev *dev) 824 static inline void pci_set_master(struct pci_dev *dev)
824 { } 825 { }
825 826
826 static inline int pci_enable_device(struct pci_dev *dev) 827 static inline int pci_enable_device(struct pci_dev *dev)
827 { 828 {
828 return -EIO; 829 return -EIO;
829 } 830 }
830 831
831 static inline void pci_disable_device(struct pci_dev *dev) 832 static inline void pci_disable_device(struct pci_dev *dev)
832 { } 833 { }
833 834
834 static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) 835 static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
835 { 836 {
836 return -EIO; 837 return -EIO;
837 } 838 }
838 839
839 static inline int pci_set_dma_max_seg_size(struct pci_dev *dev, 840 static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
840 unsigned int size) 841 unsigned int size)
841 { 842 {
842 return -EIO; 843 return -EIO;
843 } 844 }
844 845
845 static inline int pci_set_dma_seg_boundary(struct pci_dev *dev, 846 static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
846 unsigned long mask) 847 unsigned long mask)
847 { 848 {
848 return -EIO; 849 return -EIO;
849 } 850 }
850 851
851 static inline int pci_assign_resource(struct pci_dev *dev, int i) 852 static inline int pci_assign_resource(struct pci_dev *dev, int i)
852 { 853 {
853 return -EBUSY; 854 return -EBUSY;
854 } 855 }
855 856
856 static inline int __pci_register_driver(struct pci_driver *drv, 857 static inline int __pci_register_driver(struct pci_driver *drv,
857 struct module *owner) 858 struct module *owner)
858 { 859 {
859 return 0; 860 return 0;
860 } 861 }
861 862
862 static inline int pci_register_driver(struct pci_driver *drv) 863 static inline int pci_register_driver(struct pci_driver *drv)
863 { 864 {
864 return 0; 865 return 0;
865 } 866 }
866 867
867 static inline void pci_unregister_driver(struct pci_driver *drv) 868 static inline void pci_unregister_driver(struct pci_driver *drv)
868 { } 869 { }
869 870
870 static inline int pci_find_capability(struct pci_dev *dev, int cap) 871 static inline int pci_find_capability(struct pci_dev *dev, int cap)
871 { 872 {
872 return 0; 873 return 0;
873 } 874 }
874 875
875 static inline int pci_find_next_capability(struct pci_dev *dev, u8 post, 876 static inline int pci_find_next_capability(struct pci_dev *dev, u8 post,
876 int cap) 877 int cap)
877 { 878 {
878 return 0; 879 return 0;
879 } 880 }
880 881
881 static inline int pci_find_ext_capability(struct pci_dev *dev, int cap) 882 static inline int pci_find_ext_capability(struct pci_dev *dev, int cap)
882 { 883 {
883 return 0; 884 return 0;
884 } 885 }
885 886
886 static inline void pcie_wait_pending_transaction(struct pci_dev *dev) 887 static inline void pcie_wait_pending_transaction(struct pci_dev *dev)
887 { } 888 { }
888 889
889 /* Power management related routines */ 890 /* Power management related routines */
890 static inline int pci_save_state(struct pci_dev *dev) 891 static inline int pci_save_state(struct pci_dev *dev)
891 { 892 {
892 return 0; 893 return 0;
893 } 894 }
894 895
895 static inline int pci_restore_state(struct pci_dev *dev) 896 static inline int pci_restore_state(struct pci_dev *dev)
896 { 897 {
897 return 0; 898 return 0;
898 } 899 }
899 900
900 static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state) 901 static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
901 { 902 {
902 return 0; 903 return 0;
903 } 904 }
904 905
905 static inline pci_power_t pci_choose_state(struct pci_dev *dev, 906 static inline pci_power_t pci_choose_state(struct pci_dev *dev,
906 pm_message_t state) 907 pm_message_t state)
907 { 908 {
908 return PCI_D0; 909 return PCI_D0;
909 } 910 }
910 911
911 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, 912 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
912 int enable) 913 int enable)
913 { 914 {
914 return 0; 915 return 0;
915 } 916 }
916 917
917 static inline int pci_request_regions(struct pci_dev *dev, const char *res_name) 918 static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
918 { 919 {
919 return -EIO; 920 return -EIO;
920 } 921 }
921 922
922 static inline void pci_release_regions(struct pci_dev *dev) 923 static inline void pci_release_regions(struct pci_dev *dev)
923 { } 924 { }
924 925
925 #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0) 926 #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)
926 927
927 static inline void pci_block_user_cfg_access(struct pci_dev *dev) 928 static inline void pci_block_user_cfg_access(struct pci_dev *dev)
928 { } 929 { }
929 930
930 static inline void pci_unblock_user_cfg_access(struct pci_dev *dev) 931 static inline void pci_unblock_user_cfg_access(struct pci_dev *dev)
931 { } 932 { }
932 933
933 static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from) 934 static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
934 { return NULL; } 935 { return NULL; }
935 936
936 static inline struct pci_dev *pci_get_slot(struct pci_bus *bus, 937 static inline struct pci_dev *pci_get_slot(struct pci_bus *bus,
937 unsigned int devfn) 938 unsigned int devfn)
938 { return NULL; } 939 { return NULL; }
939 940
940 static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus, 941 static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
941 unsigned int devfn) 942 unsigned int devfn)
942 { return NULL; } 943 { return NULL; }
943 944
944 #endif /* CONFIG_PCI */ 945 #endif /* CONFIG_PCI */
945 946
946 /* Include architecture-dependent settings and functions */ 947 /* Include architecture-dependent settings and functions */
947 948
948 #include <asm/pci.h> 949 #include <asm/pci.h>
949 950
950 /* these helpers provide future and backwards compatibility 951 /* these helpers provide future and backwards compatibility
951 * for accessing popular PCI BAR info */ 952 * for accessing popular PCI BAR info */
952 #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start) 953 #define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)
953 #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end) 954 #define pci_resource_end(dev, bar) ((dev)->resource[(bar)].end)
954 #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags) 955 #define pci_resource_flags(dev, bar) ((dev)->resource[(bar)].flags)
955 #define pci_resource_len(dev,bar) \ 956 #define pci_resource_len(dev,bar) \
956 ((pci_resource_start((dev), (bar)) == 0 && \ 957 ((pci_resource_start((dev), (bar)) == 0 && \
957 pci_resource_end((dev), (bar)) == \ 958 pci_resource_end((dev), (bar)) == \
958 pci_resource_start((dev), (bar))) ? 0 : \ 959 pci_resource_start((dev), (bar))) ? 0 : \
959 \ 960 \
960 (pci_resource_end((dev), (bar)) - \ 961 (pci_resource_end((dev), (bar)) - \
961 pci_resource_start((dev), (bar)) + 1)) 962 pci_resource_start((dev), (bar)) + 1))
962 963
963 /* Similar to the helpers above, these manipulate per-pci_dev 964 /* Similar to the helpers above, these manipulate per-pci_dev
964 * driver-specific data. They are really just a wrapper around 965 * driver-specific data. They are really just a wrapper around
965 * the generic device structure functions of these calls. 966 * the generic device structure functions of these calls.
966 */ 967 */
967 static inline void *pci_get_drvdata(struct pci_dev *pdev) 968 static inline void *pci_get_drvdata(struct pci_dev *pdev)
968 { 969 {
969 return dev_get_drvdata(&pdev->dev); 970 return dev_get_drvdata(&pdev->dev);
970 } 971 }
971 972
972 static inline void pci_set_drvdata(struct pci_dev *pdev, void *data) 973 static inline void pci_set_drvdata(struct pci_dev *pdev, void *data)
973 { 974 {
974 dev_set_drvdata(&pdev->dev, data); 975 dev_set_drvdata(&pdev->dev, data);
975 } 976 }
976 977
977 /* If you want to know what to call your pci_dev, ask this function. 978 /* If you want to know what to call your pci_dev, ask this function.
978 * Again, it's a wrapper around the generic device. 979 * Again, it's a wrapper around the generic device.
979 */ 980 */
980 static inline char *pci_name(struct pci_dev *pdev) 981 static inline char *pci_name(struct pci_dev *pdev)
981 { 982 {
982 return pdev->dev.bus_id; 983 return pdev->dev.bus_id;
983 } 984 }
984 985
985 986
986 /* Some archs don't want to expose struct resource to userland as-is 987 /* Some archs don't want to expose struct resource to userland as-is
987 * in sysfs and /proc 988 * in sysfs and /proc
988 */ 989 */
989 #ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER 990 #ifndef HAVE_ARCH_PCI_RESOURCE_TO_USER
990 static inline void pci_resource_to_user(const struct pci_dev *dev, int bar, 991 static inline void pci_resource_to_user(const struct pci_dev *dev, int bar,
991 const struct resource *rsrc, resource_size_t *start, 992 const struct resource *rsrc, resource_size_t *start,
992 resource_size_t *end) 993 resource_size_t *end)
993 { 994 {
994 *start = rsrc->start; 995 *start = rsrc->start;
995 *end = rsrc->end; 996 *end = rsrc->end;
996 } 997 }
997 #endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */ 998 #endif /* HAVE_ARCH_PCI_RESOURCE_TO_USER */
998 999
999 1000
1000 /* 1001 /*
1001 * The world is not perfect and supplies us with broken PCI devices. 1002 * The world is not perfect and supplies us with broken PCI devices.
1002 * For at least a part of these bugs we need a work-around, so both 1003 * For at least a part of these bugs we need a work-around, so both
1003 * generic (drivers/pci/quirks.c) and per-architecture code can define 1004 * generic (drivers/pci/quirks.c) and per-architecture code can define
1004 * fixup hooks to be called for particular buggy devices. 1005 * fixup hooks to be called for particular buggy devices.
1005 */ 1006 */
1006 1007
1007 struct pci_fixup { 1008 struct pci_fixup {
1008 u16 vendor, device; /* You can use PCI_ANY_ID here of course */ 1009 u16 vendor, device; /* You can use PCI_ANY_ID here of course */
1009 void (*hook)(struct pci_dev *dev); 1010 void (*hook)(struct pci_dev *dev);
1010 }; 1011 };
1011 1012
1012 enum pci_fixup_pass { 1013 enum pci_fixup_pass {
1013 pci_fixup_early, /* Before probing BARs */ 1014 pci_fixup_early, /* Before probing BARs */
1014 pci_fixup_header, /* After reading configuration header */ 1015 pci_fixup_header, /* After reading configuration header */
1015 pci_fixup_final, /* Final phase of device fixups */ 1016 pci_fixup_final, /* Final phase of device fixups */
1016 pci_fixup_enable, /* pci_enable_device() time */ 1017 pci_fixup_enable, /* pci_enable_device() time */
1017 pci_fixup_resume, /* pci_enable_device() time */ 1018 pci_fixup_resume, /* pci_enable_device() time */
1018 }; 1019 };
1019 1020
1020 /* Anonymous variables would be nice... */ 1021 /* Anonymous variables would be nice... */
1021 #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook) \ 1022 #define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook) \
1022 static const struct pci_fixup __pci_fixup_##name __used \ 1023 static const struct pci_fixup __pci_fixup_##name __used \
1023 __attribute__((__section__(#section))) = { vendor, device, hook }; 1024 __attribute__((__section__(#section))) = { vendor, device, hook };
1024 #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \ 1025 #define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \
1025 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \ 1026 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \
1026 vendor##device##hook, vendor, device, hook) 1027 vendor##device##hook, vendor, device, hook)
1027 #define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook) \ 1028 #define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook) \
1028 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header, \ 1029 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header, \
1029 vendor##device##hook, vendor, device, hook) 1030 vendor##device##hook, vendor, device, hook)
1030 #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook) \ 1031 #define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook) \
1031 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \ 1032 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \
1032 vendor##device##hook, vendor, device, hook) 1033 vendor##device##hook, vendor, device, hook)
1033 #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook) \ 1034 #define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook) \
1034 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \ 1035 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \
1035 vendor##device##hook, vendor, device, hook) 1036 vendor##device##hook, vendor, device, hook)
1036 #define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook) \ 1037 #define DECLARE_PCI_FIXUP_RESUME(vendor, device, hook) \
1037 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \ 1038 DECLARE_PCI_FIXUP_SECTION(.pci_fixup_resume, \
1038 resume##vendor##device##hook, vendor, device, hook) 1039 resume##vendor##device##hook, vendor, device, hook)
1039 1040
1040 1041
1041 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev); 1042 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
1042 1043
1043 void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen); 1044 void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen);
1044 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr); 1045 void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr);
1045 void __iomem * const *pcim_iomap_table(struct pci_dev *pdev); 1046 void __iomem * const *pcim_iomap_table(struct pci_dev *pdev);
1046 int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name); 1047 int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name);
1047 void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask); 1048 void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask);
1048 1049
1049 extern int pci_pci_problems; 1050 extern int pci_pci_problems;
1050 #define PCIPCI_FAIL 1 /* No PCI PCI DMA */ 1051 #define PCIPCI_FAIL 1 /* No PCI PCI DMA */
1051 #define PCIPCI_TRITON 2 1052 #define PCIPCI_TRITON 2
1052 #define PCIPCI_NATOMA 4 1053 #define PCIPCI_NATOMA 4
1053 #define PCIPCI_VIAETBF 8 1054 #define PCIPCI_VIAETBF 8
1054 #define PCIPCI_VSFX 16 1055 #define PCIPCI_VSFX 16
1055 #define PCIPCI_ALIMAGIK 32 /* Need low latency setting */ 1056 #define PCIPCI_ALIMAGIK 32 /* Need low latency setting */
1056 #define PCIAGP_FAIL 64 /* No PCI to AGP DMA */ 1057 #define PCIAGP_FAIL 64 /* No PCI to AGP DMA */
1057 1058
1058 extern unsigned long pci_cardbus_io_size; 1059 extern unsigned long pci_cardbus_io_size;
1059 extern unsigned long pci_cardbus_mem_size; 1060 extern unsigned long pci_cardbus_mem_size;
1060 1061
1061 extern int pcibios_add_platform_entries(struct pci_dev *dev); 1062 extern int pcibios_add_platform_entries(struct pci_dev *dev);
1062 1063
1063 #endif /* __KERNEL__ */ 1064 #endif /* __KERNEL__ */
1064 #endif /* LINUX_PCI_H */ 1065 #endif /* LINUX_PCI_H */
1065 1066