aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/pci
diff options
context:
space:
mode:
authorJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-11-22 13:06:44 -0500
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-11-22 13:06:44 -0500
commit0bd2af46839ad6262d25714a6ec0365db9d6b98f (patch)
treedcced72d230d69fd0c5816ac6dd03ab84799a93e /drivers/pci
parente138a5d2356729b8752e88520cc1525fae9794ac (diff)
parentf26b90440cd74c78fe10c9bd5160809704a9627c (diff)
Merge ../scsi-rc-fixes-2.6
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/Kconfig4
-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c2
-rw-r--r--drivers/pci/hotplug/acpiphp.h2
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c2
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c8
-rw-r--r--drivers/pci/hotplug/acpiphp_ibm.c1
-rw-r--r--drivers/pci/hotplug/cpci_hotplug_core.c2
-rw-r--r--drivers/pci/hotplug/cpci_hotplug_pci.c2
-rw-r--r--drivers/pci/hotplug/cpcihp_generic.c4
-rw-r--r--drivers/pci/hotplug/cpqphp.h1
-rw-r--r--drivers/pci/hotplug/cpqphp_core.c1
-rw-r--r--drivers/pci/hotplug/cpqphp_ctrl.c1
-rw-r--r--drivers/pci/hotplug/cpqphp_nvram.c1
-rw-r--r--drivers/pci/hotplug/cpqphp_pci.c1
-rw-r--r--drivers/pci/hotplug/cpqphp_sysfs.c1
-rw-r--r--drivers/pci/hotplug/fakephp.c13
-rw-r--r--drivers/pci/hotplug/ibmphp.h2
-rw-r--r--drivers/pci/hotplug/pci_hotplug.h236
-rw-r--r--drivers/pci/hotplug/pci_hotplug_core.c11
-rw-r--r--drivers/pci/hotplug/pciehp.h11
-rw-r--r--drivers/pci/hotplug/pciehp_core.c6
-rw-r--r--drivers/pci/hotplug/pciehp_ctrl.c104
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c2
-rw-r--r--drivers/pci/hotplug/pcihp_skeleton.c2
-rw-r--r--drivers/pci/hotplug/rpadlpar_sysfs.c2
-rw-r--r--drivers/pci/hotplug/rpaphp.h2
-rw-r--r--drivers/pci/hotplug/rpaphp_core.c2
-rw-r--r--drivers/pci/hotplug/sgi_hotplug.c2
-rw-r--r--drivers/pci/hotplug/shpchp.h4
-rw-r--r--drivers/pci/hotplug/shpchp_hpc.c82
-rw-r--r--drivers/pci/htirq.c101
-rw-r--r--drivers/pci/msi.c16
-rw-r--r--drivers/pci/pci-driver.c13
-rw-r--r--drivers/pci/pci-sysfs.c3
-rw-r--r--drivers/pci/pcie/portdrv.h4
-rw-r--r--drivers/pci/pcie/portdrv_core.c3
-rw-r--r--drivers/pci/pcie/portdrv_pci.c2
-rw-r--r--drivers/pci/probe.c92
-rw-r--r--drivers/pci/quirks.c107
-rw-r--r--drivers/pci/rom.c6
-rw-r--r--drivers/pci/search.c72
41 files changed, 447 insertions, 486 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index 30294127a0aa..5f1b9f58070e 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -19,7 +19,7 @@ config PCI_MSI
19 19
20config PCI_MULTITHREAD_PROBE 20config PCI_MULTITHREAD_PROBE
21 bool "PCI Multi-threaded probe (EXPERIMENTAL)" 21 bool "PCI Multi-threaded probe (EXPERIMENTAL)"
22 depends on PCI && EXPERIMENTAL 22 depends on PCI && EXPERIMENTAL && BROKEN
23 help 23 help
24 Say Y here if you want the PCI core to spawn a new thread for 24 Say Y here if you want the PCI core to spawn a new thread for
25 every PCI device that is probed. This can cause a huge 25 every PCI device that is probed. This can cause a huge
@@ -55,7 +55,7 @@ config PCI_DEBUG
55config HT_IRQ 55config HT_IRQ
56 bool "Interrupts on hypertransport devices" 56 bool "Interrupts on hypertransport devices"
57 default y 57 default y
58 depends on X86_LOCAL_APIC && X86_IO_APIC 58 depends on PCI && X86_LOCAL_APIC && X86_IO_APIC
59 help 59 help
60 This allows native hypertransport devices to use interrupts. 60 This allows native hypertransport devices to use interrupts.
61 61
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 51cb9f817c22..270a33cc08f6 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -29,10 +29,10 @@
29#include <linux/kernel.h> 29#include <linux/kernel.h>
30#include <linux/types.h> 30#include <linux/types.h>
31#include <linux/pci.h> 31#include <linux/pci.h>
32#include <linux/pci_hotplug.h>
32#include <acpi/acpi.h> 33#include <acpi/acpi.h>
33#include <acpi/acpi_bus.h> 34#include <acpi/acpi_bus.h>
34#include <acpi/actypes.h> 35#include <acpi/actypes.h>
35#include "pci_hotplug.h"
36 36
37#define MY_NAME "acpi_pcihp" 37#define MY_NAME "acpi_pcihp"
38 38
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 7fff07e877c7..59c5b242d86d 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -38,7 +38,7 @@
38#include <linux/acpi.h> 38#include <linux/acpi.h>
39#include <linux/kobject.h> /* for KOBJ_NAME_LEN */ 39#include <linux/kobject.h> /* for KOBJ_NAME_LEN */
40#include <linux/mutex.h> 40#include <linux/mutex.h>
41#include "pci_hotplug.h" 41#include <linux/pci_hotplug.h>
42 42
43#define dbg(format, arg...) \ 43#define dbg(format, arg...) \
44 do { \ 44 do { \
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index e2fef60c2d06..c57d9d5ce84e 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -37,10 +37,10 @@
37 37
38#include <linux/kernel.h> 38#include <linux/kernel.h>
39#include <linux/pci.h> 39#include <linux/pci.h>
40#include <linux/pci_hotplug.h>
40#include <linux/slab.h> 41#include <linux/slab.h>
41#include <linux/smp.h> 42#include <linux/smp.h>
42#include <linux/smp_lock.h> 43#include <linux/smp_lock.h>
43#include "pci_hotplug.h"
44#include "acpiphp.h" 44#include "acpiphp.h"
45 45
46#define MY_NAME "acpiphp" 46#define MY_NAME "acpiphp"
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 83e8e4412de5..16167b016266 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -45,11 +45,11 @@
45 45
46#include <linux/kernel.h> 46#include <linux/kernel.h>
47#include <linux/pci.h> 47#include <linux/pci.h>
48#include <linux/pci_hotplug.h>
48#include <linux/smp_lock.h> 49#include <linux/smp_lock.h>
49#include <linux/mutex.h> 50#include <linux/mutex.h>
50 51
51#include "../pci.h" 52#include "../pci.h"
52#include "pci_hotplug.h"
53#include "acpiphp.h" 53#include "acpiphp.h"
54 54
55static LIST_HEAD(bridge_list); 55static LIST_HEAD(bridge_list);
@@ -1807,8 +1807,8 @@ u8 acpiphp_get_power_status(struct acpiphp_slot *slot)
1807 1807
1808 1808
1809/* 1809/*
1810 * latch closed: 1 1810 * latch open: 1
1811 * latch open: 0 1811 * latch closed: 0
1812 */ 1812 */
1813u8 acpiphp_get_latch_status(struct acpiphp_slot *slot) 1813u8 acpiphp_get_latch_status(struct acpiphp_slot *slot)
1814{ 1814{
@@ -1816,7 +1816,7 @@ u8 acpiphp_get_latch_status(struct acpiphp_slot *slot)
1816 1816
1817 sta = get_slot_status(slot); 1817 sta = get_slot_status(slot);
1818 1818
1819 return (sta & ACPI_STA_SHOW_IN_UI) ? 1 : 0; 1819 return (sta & ACPI_STA_SHOW_IN_UI) ? 0 : 1;
1820} 1820}
1821 1821
1822 1822
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index d0a07d9ab30c..bd40aee10e16 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -35,7 +35,6 @@
35#include <linux/moduleparam.h> 35#include <linux/moduleparam.h>
36 36
37#include "acpiphp.h" 37#include "acpiphp.h"
38#include "pci_hotplug.h"
39 38
40#define DRIVER_VERSION "1.0.1" 39#define DRIVER_VERSION "1.0.1"
41#define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>" 40#define DRIVER_AUTHOR "Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index d06ab4045134..684551559d44 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -29,12 +29,12 @@
29#include <linux/kernel.h> 29#include <linux/kernel.h>
30#include <linux/slab.h> 30#include <linux/slab.h>
31#include <linux/pci.h> 31#include <linux/pci.h>
32#include <linux/pci_hotplug.h>
32#include <linux/init.h> 33#include <linux/init.h>
33#include <linux/interrupt.h> 34#include <linux/interrupt.h>
34#include <linux/smp_lock.h> 35#include <linux/smp_lock.h>
35#include <asm/atomic.h> 36#include <asm/atomic.h>
36#include <linux/delay.h> 37#include <linux/delay.h>
37#include "pci_hotplug.h"
38#include "cpci_hotplug.h" 38#include "cpci_hotplug.h"
39 39
40#define DRIVER_AUTHOR "Scott Murray <scottm@somanetworks.com>" 40#define DRIVER_AUTHOR "Scott Murray <scottm@somanetworks.com>"
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index 4afcaffd031c..7b1beaad2752 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -26,9 +26,9 @@
26#include <linux/module.h> 26#include <linux/module.h>
27#include <linux/kernel.h> 27#include <linux/kernel.h>
28#include <linux/pci.h> 28#include <linux/pci.h>
29#include <linux/pci_hotplug.h>
29#include <linux/proc_fs.h> 30#include <linux/proc_fs.h>
30#include "../pci.h" 31#include "../pci.h"
31#include "pci_hotplug.h"
32#include "cpci_hotplug.h" 32#include "cpci_hotplug.h"
33 33
34#define MY_NAME "cpci_hotplug" 34#define MY_NAME "cpci_hotplug"
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index e847f0d6c7fe..f3852a6b74ea 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -84,7 +84,7 @@ static int __init validate_parameters(void)
84 84
85 if(!bridge) { 85 if(!bridge) {
86 info("not configured, disabling."); 86 info("not configured, disabling.");
87 return 1; 87 return -EINVAL;
88 } 88 }
89 str = bridge; 89 str = bridge;
90 if(!*str) 90 if(!*str)
@@ -147,7 +147,7 @@ static int __init cpcihp_generic_init(void)
147 147
148 info(DRIVER_DESC " version: " DRIVER_VERSION); 148 info(DRIVER_DESC " version: " DRIVER_VERSION);
149 status = validate_parameters(); 149 status = validate_parameters();
150 if(status != 0) 150 if (status)
151 return status; 151 return status;
152 152
153 r = request_region(port, 1, "#ENUM hotswap signal register"); 153 r = request_region(port, 1, "#ENUM hotswap signal register");
diff --git a/drivers/pci/hotplug/cpqphp.h b/drivers/pci/hotplug/cpqphp.h
index ea040c32f47d..298ad7f3f4f4 100644
--- a/drivers/pci/hotplug/cpqphp.h
+++ b/drivers/pci/hotplug/cpqphp.h
@@ -28,7 +28,6 @@
28#ifndef _CPQPHP_H 28#ifndef _CPQPHP_H
29#define _CPQPHP_H 29#define _CPQPHP_H
30 30
31#include "pci_hotplug.h"
32#include <linux/interrupt.h> 31#include <linux/interrupt.h>
33#include <asm/io.h> /* for read? and write? functions */ 32#include <asm/io.h> /* for read? and write? functions */
34#include <linux/delay.h> /* for delays */ 33#include <linux/delay.h> /* for delays */
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index 1fc259913b68..5617cfdadc5c 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -37,6 +37,7 @@
37#include <linux/slab.h> 37#include <linux/slab.h>
38#include <linux/workqueue.h> 38#include <linux/workqueue.h>
39#include <linux/pci.h> 39#include <linux/pci.h>
40#include <linux/pci_hotplug.h>
40#include <linux/init.h> 41#include <linux/init.h>
41#include <linux/interrupt.h> 42#include <linux/interrupt.h>
42 43
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index 3ec2ad7db49a..79ff6b4de3a6 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -36,6 +36,7 @@
36#include <linux/wait.h> 36#include <linux/wait.h>
37#include <linux/smp_lock.h> 37#include <linux/smp_lock.h>
38#include <linux/pci.h> 38#include <linux/pci.h>
39#include <linux/pci_hotplug.h>
39#include "cpqphp.h" 40#include "cpqphp.h"
40 41
41static u32 configure_new_device(struct controller* ctrl, struct pci_func *func, 42static u32 configure_new_device(struct controller* ctrl, struct pci_func *func,
diff --git a/drivers/pci/hotplug/cpqphp_nvram.c b/drivers/pci/hotplug/cpqphp_nvram.c
index cf0878917537..298a6cfd8406 100644
--- a/drivers/pci/hotplug/cpqphp_nvram.c
+++ b/drivers/pci/hotplug/cpqphp_nvram.c
@@ -33,6 +33,7 @@
33#include <linux/slab.h> 33#include <linux/slab.h>
34#include <linux/workqueue.h> 34#include <linux/workqueue.h>
35#include <linux/pci.h> 35#include <linux/pci.h>
36#include <linux/pci_hotplug.h>
36#include <linux/init.h> 37#include <linux/init.h>
37#include <asm/uaccess.h> 38#include <asm/uaccess.h>
38#include "cpqphp.h" 39#include "cpqphp.h"
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 0d9688952f4a..fc7c74d72595 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -33,6 +33,7 @@
33#include <linux/workqueue.h> 33#include <linux/workqueue.h>
34#include <linux/proc_fs.h> 34#include <linux/proc_fs.h>
35#include <linux/pci.h> 35#include <linux/pci.h>
36#include <linux/pci_hotplug.h>
36#include "../pci.h" 37#include "../pci.h"
37#include "cpqphp.h" 38#include "cpqphp.h"
38#include "cpqphp_nvram.h" 39#include "cpqphp_nvram.h"
diff --git a/drivers/pci/hotplug/cpqphp_sysfs.c b/drivers/pci/hotplug/cpqphp_sysfs.c
index 5bab666cd67e..634f74d919d3 100644
--- a/drivers/pci/hotplug/cpqphp_sysfs.c
+++ b/drivers/pci/hotplug/cpqphp_sysfs.c
@@ -32,6 +32,7 @@
32#include <linux/proc_fs.h> 32#include <linux/proc_fs.h>
33#include <linux/workqueue.h> 33#include <linux/workqueue.h>
34#include <linux/pci.h> 34#include <linux/pci.h>
35#include <linux/pci_hotplug.h>
35#include <linux/debugfs.h> 36#include <linux/debugfs.h>
36#include "cpqphp.h" 37#include "cpqphp.h"
37 38
diff --git a/drivers/pci/hotplug/fakephp.c b/drivers/pci/hotplug/fakephp.c
index 05a4f0f90186..e27907c91d92 100644
--- a/drivers/pci/hotplug/fakephp.c
+++ b/drivers/pci/hotplug/fakephp.c
@@ -35,10 +35,10 @@
35#include <linux/kernel.h> 35#include <linux/kernel.h>
36#include <linux/module.h> 36#include <linux/module.h>
37#include <linux/pci.h> 37#include <linux/pci.h>
38#include <linux/pci_hotplug.h>
38#include <linux/init.h> 39#include <linux/init.h>
39#include <linux/string.h> 40#include <linux/string.h>
40#include <linux/slab.h> 41#include <linux/slab.h>
41#include "pci_hotplug.h"
42#include "../pci.h" 42#include "../pci.h"
43 43
44#if !defined(MODULE) 44#if !defined(MODULE)
@@ -181,7 +181,9 @@ static void pci_rescan_slot(struct pci_dev *temp)
181 181
182 if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) { 182 if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) {
183 temp->hdr_type = hdr_type & 0x7f; 183 temp->hdr_type = hdr_type & 0x7f;
184 if (!pci_find_slot(bus->number, temp->devfn)) { 184 if ((dev = pci_get_slot(bus, temp->devfn)) != NULL)
185 pci_dev_put(dev);
186 else {
185 dev = pci_scan_single_device(bus, temp->devfn); 187 dev = pci_scan_single_device(bus, temp->devfn);
186 if (dev) { 188 if (dev) {
187 dbg("New device on %s function %x:%x\n", 189 dbg("New device on %s function %x:%x\n",
@@ -205,7 +207,9 @@ static void pci_rescan_slot(struct pci_dev *temp)
205 continue; 207 continue;
206 temp->hdr_type = hdr_type & 0x7f; 208 temp->hdr_type = hdr_type & 0x7f;
207 209
208 if (!pci_find_slot(bus->number, temp->devfn)) { 210 if ((dev = pci_get_slot(bus, temp->devfn)) != NULL)
211 pci_dev_put(dev);
212 else {
209 dev = pci_scan_single_device(bus, temp->devfn); 213 dev = pci_scan_single_device(bus, temp->devfn);
210 if (dev) { 214 if (dev) {
211 dbg("New device on %s function %x:%x\n", 215 dbg("New device on %s function %x:%x\n",
@@ -305,7 +309,7 @@ static int disable_slot(struct hotplug_slot *slot)
305 /* search for subfunctions and disable them first */ 309 /* search for subfunctions and disable them first */
306 if (!(dslot->dev->devfn & 7)) { 310 if (!(dslot->dev->devfn & 7)) {
307 for (func = 1; func < 8; func++) { 311 for (func = 1; func < 8; func++) {
308 dev = pci_find_slot(dslot->dev->bus->number, 312 dev = pci_get_slot(dslot->dev->bus,
309 dslot->dev->devfn + func); 313 dslot->dev->devfn + func);
310 if (dev) { 314 if (dev) {
311 hslot = get_slot_from_dev(dev); 315 hslot = get_slot_from_dev(dev);
@@ -315,6 +319,7 @@ static int disable_slot(struct hotplug_slot *slot)
315 err("Hotplug slot not found for subfunction of PCI device\n"); 319 err("Hotplug slot not found for subfunction of PCI device\n");
316 return -ENODEV; 320 return -ENODEV;
317 } 321 }
322 pci_dev_put(dev);
318 } else 323 } else
319 dbg("No device in slot found\n"); 324 dbg("No device in slot found\n");
320 } 325 }
diff --git a/drivers/pci/hotplug/ibmphp.h b/drivers/pci/hotplug/ibmphp.h
index dba6d8ca9bda..612d96301509 100644
--- a/drivers/pci/hotplug/ibmphp.h
+++ b/drivers/pci/hotplug/ibmphp.h
@@ -30,7 +30,7 @@
30 * 30 *
31 */ 31 */
32 32
33#include "pci_hotplug.h" 33#include <linux/pci_hotplug.h>
34 34
35extern int ibmphp_debug; 35extern int ibmphp_debug;
36 36
diff --git a/drivers/pci/hotplug/pci_hotplug.h b/drivers/pci/hotplug/pci_hotplug.h
deleted file mode 100644
index 772523dc3860..000000000000
--- a/drivers/pci/hotplug/pci_hotplug.h
+++ /dev/null
@@ -1,236 +0,0 @@
1/*
2 * PCI HotPlug Core Functions
3 *
4 * Copyright (C) 1995,2001 Compaq Computer Corporation
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001 IBM Corp.
7 *
8 * All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or (at
13 * your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
18 * NON INFRINGEMENT. See the GNU General Public License for more
19 * details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *
25 * Send feedback to <greg@kroah.com>
26 *
27 */
28#ifndef _PCI_HOTPLUG_H
29#define _PCI_HOTPLUG_H
30
31
32/* These values come from the PCI Hotplug Spec */
33enum pci_bus_speed {
34 PCI_SPEED_33MHz = 0x00,
35 PCI_SPEED_66MHz = 0x01,
36 PCI_SPEED_66MHz_PCIX = 0x02,
37 PCI_SPEED_100MHz_PCIX = 0x03,
38 PCI_SPEED_133MHz_PCIX = 0x04,
39 PCI_SPEED_66MHz_PCIX_ECC = 0x05,
40 PCI_SPEED_100MHz_PCIX_ECC = 0x06,
41 PCI_SPEED_133MHz_PCIX_ECC = 0x07,
42 PCI_SPEED_66MHz_PCIX_266 = 0x09,
43 PCI_SPEED_100MHz_PCIX_266 = 0x0a,
44 PCI_SPEED_133MHz_PCIX_266 = 0x0b,
45 PCI_SPEED_66MHz_PCIX_533 = 0x11,
46 PCI_SPEED_100MHz_PCIX_533 = 0x12,
47 PCI_SPEED_133MHz_PCIX_533 = 0x13,
48 PCI_SPEED_UNKNOWN = 0xff,
49};
50
51/* These values come from the PCI Express Spec */
52enum pcie_link_width {
53 PCIE_LNK_WIDTH_RESRV = 0x00,
54 PCIE_LNK_X1 = 0x01,
55 PCIE_LNK_X2 = 0x02,
56 PCIE_LNK_X4 = 0x04,
57 PCIE_LNK_X8 = 0x08,
58 PCIE_LNK_X12 = 0x0C,
59 PCIE_LNK_X16 = 0x10,
60 PCIE_LNK_X32 = 0x20,
61 PCIE_LNK_WIDTH_UNKNOWN = 0xFF,
62};
63
64enum pcie_link_speed {
65 PCIE_2PT5GB = 0x14,
66 PCIE_LNK_SPEED_UNKNOWN = 0xFF,
67};
68
69struct hotplug_slot;
70struct hotplug_slot_attribute {
71 struct attribute attr;
72 ssize_t (*show)(struct hotplug_slot *, char *);
73 ssize_t (*store)(struct hotplug_slot *, const char *, size_t);
74};
75#define to_hotplug_attr(n) container_of(n, struct hotplug_slot_attribute, attr);
76
77/**
78 * struct hotplug_slot_ops -the callbacks that the hotplug pci core can use
79 * @owner: The module owner of this structure
80 * @enable_slot: Called when the user wants to enable a specific pci slot
81 * @disable_slot: Called when the user wants to disable a specific pci slot
82 * @set_attention_status: Called to set the specific slot's attention LED to
83 * the specified value
84 * @hardware_test: Called to run a specified hardware test on the specified
85 * slot.
86 * @get_power_status: Called to get the current power status of a slot.
87 * If this field is NULL, the value passed in the struct hotplug_slot_info
88 * will be used when this value is requested by a user.
89 * @get_attention_status: Called to get the current attention status of a slot.
90 * If this field is NULL, the value passed in the struct hotplug_slot_info
91 * will be used when this value is requested by a user.
92 * @get_latch_status: Called to get the current latch status of a slot.
93 * If this field is NULL, the value passed in the struct hotplug_slot_info
94 * will be used when this value is requested by a user.
95 * @get_adapter_status: Called to get see if an adapter is present in the slot or not.
96 * If this field is NULL, the value passed in the struct hotplug_slot_info
97 * will be used when this value is requested by a user.
98 * @get_address: Called to get pci address of a slot.
99 * If this field is NULL, the value passed in the struct hotplug_slot_info
100 * will be used when this value is requested by a user.
101 * @get_max_bus_speed: Called to get the max bus speed for a slot.
102 * If this field is NULL, the value passed in the struct hotplug_slot_info
103 * will be used when this value is requested by a user.
104 * @get_cur_bus_speed: Called to get the current bus speed for a slot.
105 * If this field is NULL, the value passed in the struct hotplug_slot_info
106 * will be used when this value is requested by a user.
107 *
108 * The table of function pointers that is passed to the hotplug pci core by a
109 * hotplug pci driver. These functions are called by the hotplug pci core when
110 * the user wants to do something to a specific slot (query it for information,
111 * set an LED, enable / disable power, etc.)
112 */
113struct hotplug_slot_ops {
114 struct module *owner;
115 int (*enable_slot) (struct hotplug_slot *slot);
116 int (*disable_slot) (struct hotplug_slot *slot);
117 int (*set_attention_status) (struct hotplug_slot *slot, u8 value);
118 int (*hardware_test) (struct hotplug_slot *slot, u32 value);
119 int (*get_power_status) (struct hotplug_slot *slot, u8 *value);
120 int (*get_attention_status) (struct hotplug_slot *slot, u8 *value);
121 int (*get_latch_status) (struct hotplug_slot *slot, u8 *value);
122 int (*get_adapter_status) (struct hotplug_slot *slot, u8 *value);
123 int (*get_address) (struct hotplug_slot *slot, u32 *value);
124 int (*get_max_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
125 int (*get_cur_bus_speed) (struct hotplug_slot *slot, enum pci_bus_speed *value);
126};
127
128/**
129 * struct hotplug_slot_info - used to notify the hotplug pci core of the state of the slot
130 * @power: if power is enabled or not (1/0)
131 * @attention_status: if the attention light is enabled or not (1/0)
132 * @latch_status: if the latch (if any) is open or closed (1/0)
133 * @adapter_present: if there is a pci board present in the slot or not (1/0)
134 * @address: (domain << 16 | bus << 8 | dev)
135 *
136 * Used to notify the hotplug pci core of the status of a specific slot.
137 */
138struct hotplug_slot_info {
139 u8 power_status;
140 u8 attention_status;
141 u8 latch_status;
142 u8 adapter_status;
143 u32 address;
144 enum pci_bus_speed max_bus_speed;
145 enum pci_bus_speed cur_bus_speed;
146};
147
148/**
149 * struct hotplug_slot - used to register a physical slot with the hotplug pci core
150 * @name: the name of the slot being registered. This string must
151 * be unique amoung slots registered on this system.
152 * @ops: pointer to the &struct hotplug_slot_ops to be used for this slot
153 * @info: pointer to the &struct hotplug_slot_info for the initial values for
154 * this slot.
155 * @release: called during pci_hp_deregister to free memory allocated in a
156 * hotplug_slot structure.
157 * @private: used by the hotplug pci controller driver to store whatever it
158 * needs.
159 */
160struct hotplug_slot {
161 char *name;
162 struct hotplug_slot_ops *ops;
163 struct hotplug_slot_info *info;
164 void (*release) (struct hotplug_slot *slot);
165 void *private;
166
167 /* Variables below this are for use only by the hotplug pci core. */
168 struct list_head slot_list;
169 struct kobject kobj;
170};
171#define to_hotplug_slot(n) container_of(n, struct hotplug_slot, kobj)
172
173extern int pci_hp_register (struct hotplug_slot *slot);
174extern int pci_hp_deregister (struct hotplug_slot *slot);
175extern int __must_check pci_hp_change_slot_info (struct hotplug_slot *slot,
176 struct hotplug_slot_info *info);
177extern struct subsystem pci_hotplug_slots_subsys;
178
179/* PCI Setting Record (Type 0) */
180struct hpp_type0 {
181 u32 revision;
182 u8 cache_line_size;
183 u8 latency_timer;
184 u8 enable_serr;
185 u8 enable_perr;
186};
187
188/* PCI-X Setting Record (Type 1) */
189struct hpp_type1 {
190 u32 revision;
191 u8 max_mem_read;
192 u8 avg_max_split;
193 u16 tot_max_split;
194};
195
196/* PCI Express Setting Record (Type 2) */
197struct hpp_type2 {
198 u32 revision;
199 u32 unc_err_mask_and;
200 u32 unc_err_mask_or;
201 u32 unc_err_sever_and;
202 u32 unc_err_sever_or;
203 u32 cor_err_mask_and;
204 u32 cor_err_mask_or;
205 u32 adv_err_cap_and;
206 u32 adv_err_cap_or;
207 u16 pci_exp_devctl_and;
208 u16 pci_exp_devctl_or;
209 u16 pci_exp_lnkctl_and;
210 u16 pci_exp_lnkctl_or;
211 u32 sec_unc_err_sever_and;
212 u32 sec_unc_err_sever_or;
213 u32 sec_unc_err_mask_and;
214 u32 sec_unc_err_mask_or;
215};
216
217struct hotplug_params {
218 struct hpp_type0 *t0; /* Type0: NULL if not available */
219 struct hpp_type1 *t1; /* Type1: NULL if not available */
220 struct hpp_type2 *t2; /* Type2: NULL if not available */
221 struct hpp_type0 type0_data;
222 struct hpp_type1 type1_data;
223 struct hpp_type2 type2_data;
224};
225
226#ifdef CONFIG_ACPI
227#include <acpi/acpi.h>
228#include <acpi/acpi_bus.h>
229#include <acpi/actypes.h>
230extern acpi_status acpi_run_oshp(acpi_handle handle);
231extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
232 struct hotplug_params *hpp);
233int acpi_root_bridge(acpi_handle handle);
234#endif
235#endif
236
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index e2823ea9c4ed..f5d632e72323 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -21,9 +21,7 @@
21 * along with this program; if not, write to the Free Software 21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 * 23 *
24 * Send feedback to <greg@kroah.com> 24 * Send feedback to <kristen.c.accardi@intel.com>
25 *
26 * Filesystem portion based on work done by Pat Mochel on ddfs/driverfs
27 * 25 *
28 */ 26 */
29 27
@@ -32,6 +30,8 @@
32#include <linux/kernel.h> 30#include <linux/kernel.h>
33#include <linux/types.h> 31#include <linux/types.h>
34#include <linux/list.h> 32#include <linux/list.h>
33#include <linux/kobject.h>
34#include <linux/sysfs.h>
35#include <linux/pagemap.h> 35#include <linux/pagemap.h>
36#include <linux/slab.h> 36#include <linux/slab.h>
37#include <linux/smp_lock.h> 37#include <linux/smp_lock.h>
@@ -39,11 +39,8 @@
39#include <linux/mount.h> 39#include <linux/mount.h>
40#include <linux/namei.h> 40#include <linux/namei.h>
41#include <linux/pci.h> 41#include <linux/pci.h>
42#include <linux/pci_hotplug.h>
42#include <asm/uaccess.h> 43#include <asm/uaccess.h>
43#include <linux/kobject.h>
44#include <linux/sysfs.h>
45#include "pci_hotplug.h"
46
47 44
48#define MY_NAME "pci_hotplug" 45#define MY_NAME "pci_hotplug"
49 46
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index eaea9d36a1bb..4fb12fcda563 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -31,11 +31,11 @@
31 31
32#include <linux/types.h> 32#include <linux/types.h>
33#include <linux/pci.h> 33#include <linux/pci.h>
34#include <linux/pci_hotplug.h>
34#include <linux/delay.h> 35#include <linux/delay.h>
35#include <linux/sched.h> /* signal_pending() */ 36#include <linux/sched.h> /* signal_pending() */
36#include <linux/pcieport_if.h> 37#include <linux/pcieport_if.h>
37#include <linux/mutex.h> 38#include <linux/mutex.h>
38#include "pci_hotplug.h"
39 39
40#define MY_NAME "pciehp" 40#define MY_NAME "pciehp"
41 41
@@ -92,6 +92,7 @@ struct php_ctlr_state_s {
92struct controller { 92struct controller {
93 struct controller *next; 93 struct controller *next;
94 struct mutex crit_sect; /* critical section mutex */ 94 struct mutex crit_sect; /* critical section mutex */
95 struct mutex ctrl_lock; /* controller lock */
95 struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */ 96 struct php_ctlr_state_s *hpc_ctlr_handle; /* HPC controller handle */
96 int num_slots; /* Number of slots on ctlr */ 97 int num_slots; /* Number of slots on ctlr */
97 int slot_num_inc; /* 1 or -1 */ 98 int slot_num_inc; /* 1 or -1 */
@@ -166,10 +167,10 @@ struct controller {
166 * error Messages 167 * error Messages
167 */ 168 */
168#define msg_initialization_err "Initialization failure, error=%d\n" 169#define msg_initialization_err "Initialization failure, error=%d\n"
169#define msg_button_on "PCI slot #%d - powering on due to button press.\n" 170#define msg_button_on "PCI slot #%s - powering on due to button press.\n"
170#define msg_button_off "PCI slot #%d - powering off due to button press.\n" 171#define msg_button_off "PCI slot #%s - powering off due to button press.\n"
171#define msg_button_cancel "PCI slot #%d - action canceled due to button press.\n" 172#define msg_button_cancel "PCI slot #%s - action canceled due to button press.\n"
172#define msg_button_ignore "PCI slot #%d - button press ignored. (action in progress...)\n" 173#define msg_button_ignore "PCI slot #%s - button press ignored. (action in progress...)\n"
173 174
174/* controller functions */ 175/* controller functions */
175extern int pciehp_event_start_thread (void); 176extern int pciehp_event_start_thread (void);
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index c67b7c3f1ddf..f93e81e2d2c7 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -448,7 +448,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
448 } 448 }
449 449
450 /* Wait for exclusive access to hardware */ 450 /* Wait for exclusive access to hardware */
451 mutex_lock(&ctrl->crit_sect); 451 mutex_lock(&ctrl->ctrl_lock);
452 452
453 t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */ 453 t_slot->hpc_ops->get_adapter_status(t_slot, &value); /* Check if slot is occupied */
454 454
@@ -456,7 +456,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
456 rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/ 456 rc = t_slot->hpc_ops->power_off_slot(t_slot); /* Power off slot if not occupied*/
457 if (rc) { 457 if (rc) {
458 /* Done with exclusive hardware access */ 458 /* Done with exclusive hardware access */
459 mutex_unlock(&ctrl->crit_sect); 459 mutex_unlock(&ctrl->ctrl_lock);
460 goto err_out_free_ctrl_slot; 460 goto err_out_free_ctrl_slot;
461 } else 461 } else
462 /* Wait for the command to complete */ 462 /* Wait for the command to complete */
@@ -464,7 +464,7 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
464 } 464 }
465 465
466 /* Done with exclusive hardware access */ 466 /* Done with exclusive hardware access */
467 mutex_unlock(&ctrl->crit_sect); 467 mutex_unlock(&ctrl->ctrl_lock);
468 468
469 return 0; 469 return 0;
470 470
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 41290a106bd8..372c63e35aa9 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -43,6 +43,11 @@ static int event_finished;
43static unsigned long pushbutton_pending; /* = 0 */ 43static unsigned long pushbutton_pending; /* = 0 */
44static unsigned long surprise_rm_pending; /* = 0 */ 44static unsigned long surprise_rm_pending; /* = 0 */
45 45
46static inline char *slot_name(struct slot *p_slot)
47{
48 return p_slot->hotplug_slot->name;
49}
50
46u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id) 51u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
47{ 52{
48 struct controller *ctrl = (struct controller *) inst_id; 53 struct controller *ctrl = (struct controller *) inst_id;
@@ -68,7 +73,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
68 /* 73 /*
69 * Button pressed - See if need to TAKE ACTION!!! 74 * Button pressed - See if need to TAKE ACTION!!!
70 */ 75 */
71 info("Button pressed on Slot(%d)\n", ctrl->first_slot + hp_slot); 76 info("Button pressed on Slot(%s)\n", slot_name(p_slot));
72 taskInfo->event_type = INT_BUTTON_PRESS; 77 taskInfo->event_type = INT_BUTTON_PRESS;
73 78
74 if ((p_slot->state == BLINKINGON_STATE) 79 if ((p_slot->state == BLINKINGON_STATE)
@@ -78,7 +83,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
78 * or hot-remove 83 * or hot-remove
79 */ 84 */
80 taskInfo->event_type = INT_BUTTON_CANCEL; 85 taskInfo->event_type = INT_BUTTON_CANCEL;
81 info("Button cancel on Slot(%d)\n", ctrl->first_slot + hp_slot); 86 info("Button cancel on Slot(%s)\n", slot_name(p_slot));
82 } else if ((p_slot->state == POWERON_STATE) 87 } else if ((p_slot->state == POWERON_STATE)
83 || (p_slot->state == POWEROFF_STATE)) { 88 || (p_slot->state == POWEROFF_STATE)) {
84 /* Ignore if the slot is on power-on or power-off state; this 89 /* Ignore if the slot is on power-on or power-off state; this
@@ -86,7 +91,7 @@ u8 pciehp_handle_attention_button(u8 hp_slot, void *inst_id)
86 * hot-remove is undergoing 91 * hot-remove is undergoing
87 */ 92 */
88 taskInfo->event_type = INT_BUTTON_IGNORE; 93 taskInfo->event_type = INT_BUTTON_IGNORE;
89 info("Button ignore on Slot(%d)\n", ctrl->first_slot + hp_slot); 94 info("Button ignore on Slot(%s)\n", slot_name(p_slot));
90 } 95 }
91 96
92 if (rc) 97 if (rc)
@@ -122,13 +127,13 @@ u8 pciehp_handle_switch_change(u8 hp_slot, void *inst_id)
122 /* 127 /*
123 * Switch opened 128 * Switch opened
124 */ 129 */
125 info("Latch open on Slot(%d)\n", ctrl->first_slot + hp_slot); 130 info("Latch open on Slot(%s)\n", slot_name(p_slot));
126 taskInfo->event_type = INT_SWITCH_OPEN; 131 taskInfo->event_type = INT_SWITCH_OPEN;
127 } else { 132 } else {
128 /* 133 /*
129 * Switch closed 134 * Switch closed
130 */ 135 */
131 info("Latch close on Slot(%d)\n", ctrl->first_slot + hp_slot); 136 info("Latch close on Slot(%s)\n", slot_name(p_slot));
132 taskInfo->event_type = INT_SWITCH_CLOSE; 137 taskInfo->event_type = INT_SWITCH_CLOSE;
133 } 138 }
134 139
@@ -166,13 +171,13 @@ u8 pciehp_handle_presence_change(u8 hp_slot, void *inst_id)
166 /* 171 /*
167 * Card Present 172 * Card Present
168 */ 173 */
169 info("Card present on Slot(%d)\n", ctrl->first_slot + hp_slot); 174 info("Card present on Slot(%s)\n", slot_name(p_slot));
170 taskInfo->event_type = INT_PRESENCE_ON; 175 taskInfo->event_type = INT_PRESENCE_ON;
171 } else { 176 } else {
172 /* 177 /*
173 * Not Present 178 * Not Present
174 */ 179 */
175 info("Card not present on Slot(%d)\n", ctrl->first_slot + hp_slot); 180 info("Card not present on Slot(%s)\n", slot_name(p_slot));
176 taskInfo->event_type = INT_PRESENCE_OFF; 181 taskInfo->event_type = INT_PRESENCE_OFF;
177 } 182 }
178 183
@@ -206,13 +211,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
206 /* 211 /*
207 * power fault Cleared 212 * power fault Cleared
208 */ 213 */
209 info("Power fault cleared on Slot(%d)\n", ctrl->first_slot + hp_slot); 214 info("Power fault cleared on Slot(%s)\n", slot_name(p_slot));
210 taskInfo->event_type = INT_POWER_FAULT_CLEAR; 215 taskInfo->event_type = INT_POWER_FAULT_CLEAR;
211 } else { 216 } else {
212 /* 217 /*
213 * power fault 218 * power fault
214 */ 219 */
215 info("Power fault on Slot(%d)\n", ctrl->first_slot + hp_slot); 220 info("Power fault on Slot(%s)\n", slot_name(p_slot));
216 taskInfo->event_type = INT_POWER_FAULT; 221 taskInfo->event_type = INT_POWER_FAULT;
217 info("power fault bit %x set\n", hp_slot); 222 info("power fault bit %x set\n", hp_slot);
218 } 223 }
@@ -229,13 +234,13 @@ u8 pciehp_handle_power_fault(u8 hp_slot, void *inst_id)
229static void set_slot_off(struct controller *ctrl, struct slot * pslot) 234static void set_slot_off(struct controller *ctrl, struct slot * pslot)
230{ 235{
231 /* Wait for exclusive access to hardware */ 236 /* Wait for exclusive access to hardware */
232 mutex_lock(&ctrl->crit_sect); 237 mutex_lock(&ctrl->ctrl_lock);
233 238
234 /* turn off slot, turn on Amber LED, turn off Green LED if supported*/ 239 /* turn off slot, turn on Amber LED, turn off Green LED if supported*/
235 if (POWER_CTRL(ctrl->ctrlcap)) { 240 if (POWER_CTRL(ctrl->ctrlcap)) {
236 if (pslot->hpc_ops->power_off_slot(pslot)) { 241 if (pslot->hpc_ops->power_off_slot(pslot)) {
237 err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__); 242 err("%s: Issue of Slot Power Off command failed\n", __FUNCTION__);
238 mutex_unlock(&ctrl->crit_sect); 243 mutex_unlock(&ctrl->ctrl_lock);
239 return; 244 return;
240 } 245 }
241 wait_for_ctrl_irq (ctrl); 246 wait_for_ctrl_irq (ctrl);
@@ -249,14 +254,14 @@ static void set_slot_off(struct controller *ctrl, struct slot * pslot)
249 if (ATTN_LED(ctrl->ctrlcap)) { 254 if (ATTN_LED(ctrl->ctrlcap)) {
250 if (pslot->hpc_ops->set_attention_status(pslot, 1)) { 255 if (pslot->hpc_ops->set_attention_status(pslot, 1)) {
251 err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__); 256 err("%s: Issue of Set Attention Led command failed\n", __FUNCTION__);
252 mutex_unlock(&ctrl->crit_sect); 257 mutex_unlock(&ctrl->ctrl_lock);
253 return; 258 return;
254 } 259 }
255 wait_for_ctrl_irq (ctrl); 260 wait_for_ctrl_irq (ctrl);
256 } 261 }
257 262
258 /* Done with exclusive hardware access */ 263 /* Done with exclusive hardware access */
259 mutex_unlock(&ctrl->crit_sect); 264 mutex_unlock(&ctrl->ctrl_lock);
260} 265}
261 266
262/** 267/**
@@ -279,13 +284,13 @@ static int board_added(struct slot *p_slot)
279 ctrl->slot_device_offset, hp_slot); 284 ctrl->slot_device_offset, hp_slot);
280 285
281 /* Wait for exclusive access to hardware */ 286 /* Wait for exclusive access to hardware */
282 mutex_lock(&ctrl->crit_sect); 287 mutex_lock(&ctrl->ctrl_lock);
283 288
284 if (POWER_CTRL(ctrl->ctrlcap)) { 289 if (POWER_CTRL(ctrl->ctrlcap)) {
285 /* Power on slot */ 290 /* Power on slot */
286 rc = p_slot->hpc_ops->power_on_slot(p_slot); 291 rc = p_slot->hpc_ops->power_on_slot(p_slot);
287 if (rc) { 292 if (rc) {
288 mutex_unlock(&ctrl->crit_sect); 293 mutex_unlock(&ctrl->ctrl_lock);
289 return -1; 294 return -1;
290 } 295 }
291 296
@@ -301,7 +306,7 @@ static int board_added(struct slot *p_slot)
301 } 306 }
302 307
303 /* Done with exclusive hardware access */ 308 /* Done with exclusive hardware access */
304 mutex_unlock(&ctrl->crit_sect); 309 mutex_unlock(&ctrl->ctrl_lock);
305 310
306 /* Wait for ~1 second */ 311 /* Wait for ~1 second */
307 wait_for_ctrl_irq (ctrl); 312 wait_for_ctrl_irq (ctrl);
@@ -335,7 +340,7 @@ static int board_added(struct slot *p_slot)
335 pci_fixup_device(pci_fixup_final, ctrl->pci_dev); 340 pci_fixup_device(pci_fixup_final, ctrl->pci_dev);
336 if (PWR_LED(ctrl->ctrlcap)) { 341 if (PWR_LED(ctrl->ctrlcap)) {
337 /* Wait for exclusive access to hardware */ 342 /* Wait for exclusive access to hardware */
338 mutex_lock(&ctrl->crit_sect); 343 mutex_lock(&ctrl->ctrl_lock);
339 344
340 p_slot->hpc_ops->green_led_on(p_slot); 345 p_slot->hpc_ops->green_led_on(p_slot);
341 346
@@ -343,7 +348,7 @@ static int board_added(struct slot *p_slot)
343 wait_for_ctrl_irq (ctrl); 348 wait_for_ctrl_irq (ctrl);
344 349
345 /* Done with exclusive hardware access */ 350 /* Done with exclusive hardware access */
346 mutex_unlock(&ctrl->crit_sect); 351 mutex_unlock(&ctrl->ctrl_lock);
347 } 352 }
348 return 0; 353 return 0;
349 354
@@ -375,14 +380,14 @@ static int remove_board(struct slot *p_slot)
375 dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot); 380 dbg("In %s, hp_slot = %d\n", __FUNCTION__, hp_slot);
376 381
377 /* Wait for exclusive access to hardware */ 382 /* Wait for exclusive access to hardware */
378 mutex_lock(&ctrl->crit_sect); 383 mutex_lock(&ctrl->ctrl_lock);
379 384
380 if (POWER_CTRL(ctrl->ctrlcap)) { 385 if (POWER_CTRL(ctrl->ctrlcap)) {
381 /* power off slot */ 386 /* power off slot */
382 rc = p_slot->hpc_ops->power_off_slot(p_slot); 387 rc = p_slot->hpc_ops->power_off_slot(p_slot);
383 if (rc) { 388 if (rc) {
384 err("%s: Issue of Slot Disable command failed\n", __FUNCTION__); 389 err("%s: Issue of Slot Disable command failed\n", __FUNCTION__);
385 mutex_unlock(&ctrl->crit_sect); 390 mutex_unlock(&ctrl->ctrl_lock);
386 return rc; 391 return rc;
387 } 392 }
388 /* Wait for the command to complete */ 393 /* Wait for the command to complete */
@@ -398,7 +403,7 @@ static int remove_board(struct slot *p_slot)
398 } 403 }
399 404
400 /* Done with exclusive hardware access */ 405 /* Done with exclusive hardware access */
401 mutex_unlock(&ctrl->crit_sect); 406 mutex_unlock(&ctrl->ctrl_lock);
402 407
403 return 0; 408 return 0;
404} 409}
@@ -445,7 +450,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
445 450
446 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { 451 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
447 /* Wait for exclusive access to hardware */ 452 /* Wait for exclusive access to hardware */
448 mutex_lock(&p_slot->ctrl->crit_sect); 453 mutex_lock(&p_slot->ctrl->ctrl_lock);
449 454
450 p_slot->hpc_ops->green_led_off(p_slot); 455 p_slot->hpc_ops->green_led_off(p_slot);
451 456
@@ -453,7 +458,7 @@ static void pciehp_pushbutton_thread(unsigned long slot)
453 wait_for_ctrl_irq (p_slot->ctrl); 458 wait_for_ctrl_irq (p_slot->ctrl);
454 459
455 /* Done with exclusive hardware access */ 460 /* Done with exclusive hardware access */
456 mutex_unlock(&p_slot->ctrl->crit_sect); 461 mutex_unlock(&p_slot->ctrl->ctrl_lock);
457 } 462 }
458 p_slot->state = STATIC_STATE; 463 p_slot->state = STATIC_STATE;
459 } 464 }
@@ -495,7 +500,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
495 500
496 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) { 501 if (pciehp_enable_slot(p_slot) && PWR_LED(p_slot->ctrl->ctrlcap)) {
497 /* Wait for exclusive access to hardware */ 502 /* Wait for exclusive access to hardware */
498 mutex_lock(&p_slot->ctrl->crit_sect); 503 mutex_lock(&p_slot->ctrl->ctrl_lock);
499 504
500 p_slot->hpc_ops->green_led_off(p_slot); 505 p_slot->hpc_ops->green_led_off(p_slot);
501 506
@@ -503,7 +508,7 @@ static void pciehp_surprise_rm_thread(unsigned long slot)
503 wait_for_ctrl_irq (p_slot->ctrl); 508 wait_for_ctrl_irq (p_slot->ctrl);
504 509
505 /* Done with exclusive hardware access */ 510 /* Done with exclusive hardware access */
506 mutex_unlock(&p_slot->ctrl->crit_sect); 511 mutex_unlock(&p_slot->ctrl->ctrl_lock);
507 } 512 }
508 p_slot->state = STATIC_STATE; 513 p_slot->state = STATIC_STATE;
509 } 514 }
@@ -616,7 +621,7 @@ static void interrupt_event_handler(struct controller *ctrl)
616 switch (p_slot->state) { 621 switch (p_slot->state) {
617 case BLINKINGOFF_STATE: 622 case BLINKINGOFF_STATE:
618 /* Wait for exclusive access to hardware */ 623 /* Wait for exclusive access to hardware */
619 mutex_lock(&ctrl->crit_sect); 624 mutex_lock(&ctrl->ctrl_lock);
620 625
621 if (PWR_LED(ctrl->ctrlcap)) { 626 if (PWR_LED(ctrl->ctrlcap)) {
622 p_slot->hpc_ops->green_led_on(p_slot); 627 p_slot->hpc_ops->green_led_on(p_slot);
@@ -630,11 +635,11 @@ static void interrupt_event_handler(struct controller *ctrl)
630 wait_for_ctrl_irq (ctrl); 635 wait_for_ctrl_irq (ctrl);
631 } 636 }
632 /* Done with exclusive hardware access */ 637 /* Done with exclusive hardware access */
633 mutex_unlock(&ctrl->crit_sect); 638 mutex_unlock(&ctrl->ctrl_lock);
634 break; 639 break;
635 case BLINKINGON_STATE: 640 case BLINKINGON_STATE:
636 /* Wait for exclusive access to hardware */ 641 /* Wait for exclusive access to hardware */
637 mutex_lock(&ctrl->crit_sect); 642 mutex_lock(&ctrl->ctrl_lock);
638 643
639 if (PWR_LED(ctrl->ctrlcap)) { 644 if (PWR_LED(ctrl->ctrlcap)) {
640 p_slot->hpc_ops->green_led_off(p_slot); 645 p_slot->hpc_ops->green_led_off(p_slot);
@@ -647,14 +652,14 @@ static void interrupt_event_handler(struct controller *ctrl)
647 wait_for_ctrl_irq (ctrl); 652 wait_for_ctrl_irq (ctrl);
648 } 653 }
649 /* Done with exclusive hardware access */ 654 /* Done with exclusive hardware access */
650 mutex_unlock(&ctrl->crit_sect); 655 mutex_unlock(&ctrl->ctrl_lock);
651 656
652 break; 657 break;
653 default: 658 default:
654 warn("Not a valid state\n"); 659 warn("Not a valid state\n");
655 return; 660 return;
656 } 661 }
657 info(msg_button_cancel, p_slot->number); 662 info(msg_button_cancel, slot_name(p_slot));
658 p_slot->state = STATIC_STATE; 663 p_slot->state = STATIC_STATE;
659 } 664 }
660 /* ***********Button Pressed (No action on 1st press...) */ 665 /* ***********Button Pressed (No action on 1st press...) */
@@ -667,16 +672,16 @@ static void interrupt_event_handler(struct controller *ctrl)
667 /* slot is on */ 672 /* slot is on */
668 dbg("slot is on\n"); 673 dbg("slot is on\n");
669 p_slot->state = BLINKINGOFF_STATE; 674 p_slot->state = BLINKINGOFF_STATE;
670 info(msg_button_off, p_slot->number); 675 info(msg_button_off, slot_name(p_slot));
671 } else { 676 } else {
672 /* slot is off */ 677 /* slot is off */
673 dbg("slot is off\n"); 678 dbg("slot is off\n");
674 p_slot->state = BLINKINGON_STATE; 679 p_slot->state = BLINKINGON_STATE;
675 info(msg_button_on, p_slot->number); 680 info(msg_button_on, slot_name(p_slot));
676 } 681 }
677 682
678 /* Wait for exclusive access to hardware */ 683 /* Wait for exclusive access to hardware */
679 mutex_lock(&ctrl->crit_sect); 684 mutex_lock(&ctrl->ctrl_lock);
680 685
681 /* blink green LED and turn off amber */ 686 /* blink green LED and turn off amber */
682 if (PWR_LED(ctrl->ctrlcap)) { 687 if (PWR_LED(ctrl->ctrlcap)) {
@@ -693,7 +698,7 @@ static void interrupt_event_handler(struct controller *ctrl)
693 } 698 }
694 699
695 /* Done with exclusive hardware access */ 700 /* Done with exclusive hardware access */
696 mutex_unlock(&ctrl->crit_sect); 701 mutex_unlock(&ctrl->ctrl_lock);
697 702
698 init_timer(&p_slot->task_event); 703 init_timer(&p_slot->task_event);
699 p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */ 704 p_slot->task_event.expires = jiffies + 5 * HZ; /* 5 second delay */
@@ -708,7 +713,7 @@ static void interrupt_event_handler(struct controller *ctrl)
708 if (POWER_CTRL(ctrl->ctrlcap)) { 713 if (POWER_CTRL(ctrl->ctrlcap)) {
709 dbg("power fault\n"); 714 dbg("power fault\n");
710 /* Wait for exclusive access to hardware */ 715 /* Wait for exclusive access to hardware */
711 mutex_lock(&ctrl->crit_sect); 716 mutex_lock(&ctrl->ctrl_lock);
712 717
713 if (ATTN_LED(ctrl->ctrlcap)) { 718 if (ATTN_LED(ctrl->ctrlcap)) {
714 p_slot->hpc_ops->set_attention_status(p_slot, 1); 719 p_slot->hpc_ops->set_attention_status(p_slot, 1);
@@ -721,7 +726,7 @@ static void interrupt_event_handler(struct controller *ctrl)
721 } 726 }
722 727
723 /* Done with exclusive hardware access */ 728 /* Done with exclusive hardware access */
724 mutex_unlock(&ctrl->crit_sect); 729 mutex_unlock(&ctrl->ctrl_lock);
725 } 730 }
726 } 731 }
727 /***********SURPRISE REMOVAL********************/ 732 /***********SURPRISE REMOVAL********************/
@@ -760,14 +765,16 @@ int pciehp_enable_slot(struct slot *p_slot)
760 765
761 rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); 766 rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
762 if (rc || !getstatus) { 767 if (rc || !getstatus) {
763 info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); 768 info("%s: no adapter on slot(%s)\n", __FUNCTION__,
769 slot_name(p_slot));
764 mutex_unlock(&p_slot->ctrl->crit_sect); 770 mutex_unlock(&p_slot->ctrl->crit_sect);
765 return -ENODEV; 771 return -ENODEV;
766 } 772 }
767 if (MRL_SENS(p_slot->ctrl->ctrlcap)) { 773 if (MRL_SENS(p_slot->ctrl->ctrlcap)) {
768 rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); 774 rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
769 if (rc || getstatus) { 775 if (rc || getstatus) {
770 info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); 776 info("%s: latch open on slot(%s)\n", __FUNCTION__,
777 slot_name(p_slot));
771 mutex_unlock(&p_slot->ctrl->crit_sect); 778 mutex_unlock(&p_slot->ctrl->crit_sect);
772 return -ENODEV; 779 return -ENODEV;
773 } 780 }
@@ -776,12 +783,12 @@ int pciehp_enable_slot(struct slot *p_slot)
776 if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { 783 if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {
777 rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); 784 rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
778 if (rc || getstatus) { 785 if (rc || getstatus) {
779 info("%s: already enabled on slot(%x)\n", __FUNCTION__, p_slot->number); 786 info("%s: already enabled on slot(%s)\n", __FUNCTION__,
787 slot_name(p_slot));
780 mutex_unlock(&p_slot->ctrl->crit_sect); 788 mutex_unlock(&p_slot->ctrl->crit_sect);
781 return -EINVAL; 789 return -EINVAL;
782 } 790 }
783 } 791 }
784 mutex_unlock(&p_slot->ctrl->crit_sect);
785 792
786 p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); 793 p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
787 794
@@ -790,9 +797,9 @@ int pciehp_enable_slot(struct slot *p_slot)
790 p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); 797 p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
791 } 798 }
792 799
793 if (p_slot) 800 update_slot_info(p_slot);
794 update_slot_info(p_slot);
795 801
802 mutex_unlock(&p_slot->ctrl->crit_sect);
796 return rc; 803 return rc;
797} 804}
798 805
@@ -811,7 +818,8 @@ int pciehp_disable_slot(struct slot *p_slot)
811 if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) { 818 if (!HP_SUPR_RM(p_slot->ctrl->ctrlcap)) {
812 ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus); 819 ret = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
813 if (ret || !getstatus) { 820 if (ret || !getstatus) {
814 info("%s: no adapter on slot(%x)\n", __FUNCTION__, p_slot->number); 821 info("%s: no adapter on slot(%s)\n", __FUNCTION__,
822 slot_name(p_slot));
815 mutex_unlock(&p_slot->ctrl->crit_sect); 823 mutex_unlock(&p_slot->ctrl->crit_sect);
816 return -ENODEV; 824 return -ENODEV;
817 } 825 }
@@ -820,7 +828,8 @@ int pciehp_disable_slot(struct slot *p_slot)
820 if (MRL_SENS(p_slot->ctrl->ctrlcap)) { 828 if (MRL_SENS(p_slot->ctrl->ctrlcap)) {
821 ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus); 829 ret = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
822 if (ret || getstatus) { 830 if (ret || getstatus) {
823 info("%s: latch open on slot(%x)\n", __FUNCTION__, p_slot->number); 831 info("%s: latch open on slot(%s)\n", __FUNCTION__,
832 slot_name(p_slot));
824 mutex_unlock(&p_slot->ctrl->crit_sect); 833 mutex_unlock(&p_slot->ctrl->crit_sect);
825 return -ENODEV; 834 return -ENODEV;
826 } 835 }
@@ -829,16 +838,17 @@ int pciehp_disable_slot(struct slot *p_slot)
829 if (POWER_CTRL(p_slot->ctrl->ctrlcap)) { 838 if (POWER_CTRL(p_slot->ctrl->ctrlcap)) {
830 ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus); 839 ret = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
831 if (ret || !getstatus) { 840 if (ret || !getstatus) {
832 info("%s: already disabled slot(%x)\n", __FUNCTION__, p_slot->number); 841 info("%s: already disabled slot(%s)\n", __FUNCTION__,
842 slot_name(p_slot));
833 mutex_unlock(&p_slot->ctrl->crit_sect); 843 mutex_unlock(&p_slot->ctrl->crit_sect);
834 return -EINVAL; 844 return -EINVAL;
835 } 845 }
836 } 846 }
837 847
838 mutex_unlock(&p_slot->ctrl->crit_sect);
839
840 ret = remove_board(p_slot); 848 ret = remove_board(p_slot);
841 update_slot_info(p_slot); 849 update_slot_info(p_slot);
850
851 mutex_unlock(&p_slot->ctrl->crit_sect);
842 return ret; 852 return ret;
843} 853}
844 854
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 703a64a39fe8..1c551c697c35 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1402,6 +1402,8 @@ int pcie_init(struct controller * ctrl, struct pcie_device *dev)
1402 pdev->subsystem_vendor, pdev->subsystem_device); 1402 pdev->subsystem_vendor, pdev->subsystem_device);
1403 1403
1404 mutex_init(&ctrl->crit_sect); 1404 mutex_init(&ctrl->crit_sect);
1405 mutex_init(&ctrl->ctrl_lock);
1406
1405 /* setup wait queue */ 1407 /* setup wait queue */
1406 init_waitqueue_head(&ctrl->queue); 1408 init_waitqueue_head(&ctrl->queue);
1407 1409
diff --git a/drivers/pci/hotplug/pcihp_skeleton.c b/drivers/pci/hotplug/pcihp_skeleton.c
index 2b9e10e38613..50bcd3fe61da 100644
--- a/drivers/pci/hotplug/pcihp_skeleton.c
+++ b/drivers/pci/hotplug/pcihp_skeleton.c
@@ -33,8 +33,8 @@
33#include <linux/kernel.h> 33#include <linux/kernel.h>
34#include <linux/slab.h> 34#include <linux/slab.h>
35#include <linux/pci.h> 35#include <linux/pci.h>
36#include <linux/pci_hotplug.h>
36#include <linux/init.h> 37#include <linux/init.h>
37#include "pci_hotplug.h"
38 38
39#define SLOT_NAME_SIZE 10 39#define SLOT_NAME_SIZE 10
40struct slot { 40struct slot {
diff --git a/drivers/pci/hotplug/rpadlpar_sysfs.c b/drivers/pci/hotplug/rpadlpar_sysfs.c
index db69be85b458..6c5be3ff578c 100644
--- a/drivers/pci/hotplug/rpadlpar_sysfs.c
+++ b/drivers/pci/hotplug/rpadlpar_sysfs.c
@@ -14,7 +14,7 @@
14 */ 14 */
15#include <linux/kobject.h> 15#include <linux/kobject.h>
16#include <linux/string.h> 16#include <linux/string.h>
17#include "pci_hotplug.h" 17#include <linux/pci_hotplug.h>
18#include "rpadlpar.h" 18#include "rpadlpar.h"
19 19
20#define DLPAR_KOBJ_NAME "control" 20#define DLPAR_KOBJ_NAME "control"
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index 310b6186c0e5..2e7accf0f734 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -28,7 +28,7 @@
28#define _PPC64PHP_H 28#define _PPC64PHP_H
29 29
30#include <linux/pci.h> 30#include <linux/pci.h>
31#include "pci_hotplug.h" 31#include <linux/pci_hotplug.h>
32 32
33#define DR_INDICATOR 9002 33#define DR_INDICATOR 9002
34#define DR_ENTITY_SENSE 9003 34#define DR_ENTITY_SENSE 9003
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 7288a3eccfb3..141486df235b 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -26,6 +26,7 @@
26#include <linux/module.h> 26#include <linux/module.h>
27#include <linux/moduleparam.h> 27#include <linux/moduleparam.h>
28#include <linux/pci.h> 28#include <linux/pci.h>
29#include <linux/pci_hotplug.h>
29#include <linux/slab.h> 30#include <linux/slab.h>
30#include <linux/smp.h> 31#include <linux/smp.h>
31#include <linux/smp_lock.h> 32#include <linux/smp_lock.h>
@@ -36,7 +37,6 @@
36#include "../pci.h" /* for pci_add_new_bus */ 37#include "../pci.h" /* for pci_add_new_bus */
37 /* and pci_do_scan_bus */ 38 /* and pci_do_scan_bus */
38#include "rpaphp.h" 39#include "rpaphp.h"
39#include "pci_hotplug.h"
40 40
41int debug; 41int debug;
42static struct semaphore rpaphp_sem; 42static struct semaphore rpaphp_sem;
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index f31d83c2c633..b62ad31a9739 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -13,6 +13,7 @@
13#include <linux/kernel.h> 13#include <linux/kernel.h>
14#include <linux/module.h> 14#include <linux/module.h>
15#include <linux/pci.h> 15#include <linux/pci.h>
16#include <linux/pci_hotplug.h>
16#include <linux/proc_fs.h> 17#include <linux/proc_fs.h>
17#include <linux/types.h> 18#include <linux/types.h>
18#include <linux/mutex.h> 19#include <linux/mutex.h>
@@ -29,7 +30,6 @@
29#include <asm/sn/types.h> 30#include <asm/sn/types.h>
30 31
31#include "../pci.h" 32#include "../pci.h"
32#include "pci_hotplug.h"
33 33
34MODULE_LICENSE("GPL"); 34MODULE_LICENSE("GPL");
35MODULE_AUTHOR("SGI (prarit@sgi.com, dickie@sgi.com, habeck@sgi.com)"); 35MODULE_AUTHOR("SGI (prarit@sgi.com, dickie@sgi.com, habeck@sgi.com)");
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index c7103ac5cd06..ea2087c34149 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -31,12 +31,11 @@
31 31
32#include <linux/types.h> 32#include <linux/types.h>
33#include <linux/pci.h> 33#include <linux/pci.h>
34#include <linux/pci_hotplug.h>
34#include <linux/delay.h> 35#include <linux/delay.h>
35#include <linux/sched.h> /* signal_pending(), struct timer_list */ 36#include <linux/sched.h> /* signal_pending(), struct timer_list */
36#include <linux/mutex.h> 37#include <linux/mutex.h>
37 38
38#include "pci_hotplug.h"
39
40#if !defined(MODULE) 39#if !defined(MODULE)
41 #define MY_NAME "shpchp" 40 #define MY_NAME "shpchp"
42#else 41#else
@@ -103,7 +102,6 @@ struct controller {
103 u32 cap_offset; 102 u32 cap_offset;
104 unsigned long mmio_base; 103 unsigned long mmio_base;
105 unsigned long mmio_size; 104 unsigned long mmio_size;
106 volatile int cmd_busy;
107}; 105};
108 106
109 107
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 4d8aee119134..83a5226ba9ed 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -302,21 +302,51 @@ static void start_int_poll_timer(struct php_ctlr_state_s *php_ctlr, int sec)
302 add_timer(&php_ctlr->int_poll_timer); 302 add_timer(&php_ctlr->int_poll_timer);
303} 303}
304 304
305static inline int is_ctrl_busy(struct controller *ctrl)
306{
307 u16 cmd_status = shpc_readw(ctrl, CMD_STATUS);
308 return cmd_status & 0x1;
309}
310
311/*
312 * Returns 1 if SHPC finishes executing a command within 1 sec,
313 * otherwise returns 0.
314 */
315static inline int shpc_poll_ctrl_busy(struct controller *ctrl)
316{
317 int i;
318
319 if (!is_ctrl_busy(ctrl))
320 return 1;
321
322 /* Check every 0.1 sec for a total of 1 sec */
323 for (i = 0; i < 10; i++) {
324 msleep(100);
325 if (!is_ctrl_busy(ctrl))
326 return 1;
327 }
328
329 return 0;
330}
331
305static inline int shpc_wait_cmd(struct controller *ctrl) 332static inline int shpc_wait_cmd(struct controller *ctrl)
306{ 333{
307 int retval = 0; 334 int retval = 0;
308 unsigned int timeout_msec = shpchp_poll_mode ? 2000 : 1000; 335 unsigned long timeout = msecs_to_jiffies(1000);
309 unsigned long timeout = msecs_to_jiffies(timeout_msec); 336 int rc;
310 int rc = wait_event_interruptible_timeout(ctrl->queue, 337
311 !ctrl->cmd_busy, timeout); 338 if (shpchp_poll_mode)
312 if (!rc) { 339 rc = shpc_poll_ctrl_busy(ctrl);
340 else
341 rc = wait_event_interruptible_timeout(ctrl->queue,
342 !is_ctrl_busy(ctrl), timeout);
343 if (!rc && is_ctrl_busy(ctrl)) {
313 retval = -EIO; 344 retval = -EIO;
314 err("Command not completed in %d msec\n", timeout_msec); 345 err("Command not completed in 1000 msec\n");
315 } else if (rc < 0) { 346 } else if (rc < 0) {
316 retval = -EINTR; 347 retval = -EINTR;
317 info("Command was interrupted by a signal\n"); 348 info("Command was interrupted by a signal\n");
318 } 349 }
319 ctrl->cmd_busy = 0;
320 350
321 return retval; 351 return retval;
322} 352}
@@ -327,26 +357,15 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
327 u16 cmd_status; 357 u16 cmd_status;
328 int retval = 0; 358 int retval = 0;
329 u16 temp_word; 359 u16 temp_word;
330 int i;
331 360
332 DBG_ENTER_ROUTINE 361 DBG_ENTER_ROUTINE
333 362
334 mutex_lock(&slot->ctrl->cmd_lock); 363 mutex_lock(&slot->ctrl->cmd_lock);
335 364
336 for (i = 0; i < 10; i++) { 365 if (!shpc_poll_ctrl_busy(ctrl)) {
337 cmd_status = shpc_readw(ctrl, CMD_STATUS);
338
339 if (!(cmd_status & 0x1))
340 break;
341 /* Check every 0.1 sec for a total of 1 sec*/
342 msleep(100);
343 }
344
345 cmd_status = shpc_readw(ctrl, CMD_STATUS);
346
347 if (cmd_status & 0x1) {
348 /* After 1 sec and and the controller is still busy */ 366 /* After 1 sec and and the controller is still busy */
349 err("%s : Controller is still busy after 1 sec.\n", __FUNCTION__); 367 err("%s : Controller is still busy after 1 sec.\n",
368 __FUNCTION__);
350 retval = -EBUSY; 369 retval = -EBUSY;
351 goto out; 370 goto out;
352 } 371 }
@@ -358,7 +377,6 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
358 /* To make sure the Controller Busy bit is 0 before we send out the 377 /* To make sure the Controller Busy bit is 0 before we send out the
359 * command. 378 * command.
360 */ 379 */
361 slot->ctrl->cmd_busy = 1;
362 shpc_writew(ctrl, CMD, temp_word); 380 shpc_writew(ctrl, CMD, temp_word);
363 381
364 /* 382 /*
@@ -908,7 +926,6 @@ static irqreturn_t shpc_isr(int irq, void *dev_id)
908 serr_int &= ~SERR_INTR_RSVDZ_MASK; 926 serr_int &= ~SERR_INTR_RSVDZ_MASK;
909 shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int); 927 shpc_writel(ctrl, SERR_INTR_ENABLE, serr_int);
910 928
911 ctrl->cmd_busy = 0;
912 wake_up_interruptible(&ctrl->queue); 929 wake_up_interruptible(&ctrl->queue);
913 } 930 }
914 931
@@ -1101,7 +1118,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
1101{ 1118{
1102 struct php_ctlr_state_s *php_ctlr, *p; 1119 struct php_ctlr_state_s *php_ctlr, *p;
1103 void *instance_id = ctrl; 1120 void *instance_id = ctrl;
1104 int rc, num_slots = 0; 1121 int rc = -1, num_slots = 0;
1105 u8 hp_slot; 1122 u8 hp_slot;
1106 u32 shpc_base_offset; 1123 u32 shpc_base_offset;
1107 u32 tempdword, slot_reg, slot_config; 1124 u32 tempdword, slot_reg, slot_config;
@@ -1167,11 +1184,15 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
1167 info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor, 1184 info("HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n", pdev->vendor, pdev->device, pdev->subsystem_vendor,
1168 pdev->subsystem_device); 1185 pdev->subsystem_device);
1169 1186
1170 if (pci_enable_device(pdev)) 1187 rc = pci_enable_device(pdev);
1188 if (rc) {
1189 err("%s: pci_enable_device failed\n", __FUNCTION__);
1171 goto abort_free_ctlr; 1190 goto abort_free_ctlr;
1191 }
1172 1192
1173 if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) { 1193 if (!request_mem_region(ctrl->mmio_base, ctrl->mmio_size, MY_NAME)) {
1174 err("%s: cannot reserve MMIO region\n", __FUNCTION__); 1194 err("%s: cannot reserve MMIO region\n", __FUNCTION__);
1195 rc = -1;
1175 goto abort_free_ctlr; 1196 goto abort_free_ctlr;
1176 } 1197 }
1177 1198
@@ -1180,6 +1201,7 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
1180 err("%s: cannot remap MMIO region %lx @ %lx\n", __FUNCTION__, 1201 err("%s: cannot remap MMIO region %lx @ %lx\n", __FUNCTION__,
1181 ctrl->mmio_size, ctrl->mmio_base); 1202 ctrl->mmio_size, ctrl->mmio_base);
1182 release_mem_region(ctrl->mmio_base, ctrl->mmio_size); 1203 release_mem_region(ctrl->mmio_base, ctrl->mmio_size);
1204 rc = -1;
1183 goto abort_free_ctlr; 1205 goto abort_free_ctlr;
1184 } 1206 }
1185 dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg); 1207 dbg("%s: php_ctlr->creg %p\n", __FUNCTION__, php_ctlr->creg);
@@ -1282,8 +1304,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
1282 */ 1304 */
1283 if (atomic_add_return(1, &shpchp_num_controllers) == 1) { 1305 if (atomic_add_return(1, &shpchp_num_controllers) == 1) {
1284 shpchp_wq = create_singlethread_workqueue("shpchpd"); 1306 shpchp_wq = create_singlethread_workqueue("shpchpd");
1285 if (!shpchp_wq) 1307 if (!shpchp_wq) {
1286 return -ENOMEM; 1308 rc = -ENOMEM;
1309 goto abort_free_ctlr;
1310 }
1287 } 1311 }
1288 1312
1289 /* 1313 /*
@@ -1313,8 +1337,10 @@ int shpc_init(struct controller * ctrl, struct pci_dev * pdev)
1313 1337
1314 /* We end up here for the many possible ways to fail this API. */ 1338 /* We end up here for the many possible ways to fail this API. */
1315abort_free_ctlr: 1339abort_free_ctlr:
1340 if (php_ctlr->creg)
1341 iounmap(php_ctlr->creg);
1316 kfree(php_ctlr); 1342 kfree(php_ctlr);
1317abort: 1343abort:
1318 DBG_LEAVE_ROUTINE 1344 DBG_LEAVE_ROUTINE
1319 return -1; 1345 return rc;
1320} 1346}
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index 0e27f2404a83..0a8d1cce9fa0 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -25,97 +25,72 @@ static DEFINE_SPINLOCK(ht_irq_lock);
25 25
26struct ht_irq_cfg { 26struct ht_irq_cfg {
27 struct pci_dev *dev; 27 struct pci_dev *dev;
28 /* Update callback used to cope with buggy hardware */
29 ht_irq_update_t *update;
28 unsigned pos; 30 unsigned pos;
29 unsigned idx; 31 unsigned idx;
32 struct ht_irq_msg msg;
30}; 33};
31 34
32void write_ht_irq_low(unsigned int irq, u32 data)
33{
34 struct ht_irq_cfg *cfg = get_irq_data(irq);
35 unsigned long flags;
36 spin_lock_irqsave(&ht_irq_lock, flags);
37 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx);
38 pci_write_config_dword(cfg->dev, cfg->pos + 4, data);
39 spin_unlock_irqrestore(&ht_irq_lock, flags);
40}
41 35
42void write_ht_irq_high(unsigned int irq, u32 data) 36void write_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg)
43{ 37{
44 struct ht_irq_cfg *cfg = get_irq_data(irq); 38 struct ht_irq_cfg *cfg = get_irq_data(irq);
45 unsigned long flags; 39 unsigned long flags;
46 spin_lock_irqsave(&ht_irq_lock, flags); 40 spin_lock_irqsave(&ht_irq_lock, flags);
47 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx + 1); 41 if (cfg->msg.address_lo != msg->address_lo) {
48 pci_write_config_dword(cfg->dev, cfg->pos + 4, data); 42 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx);
49 spin_unlock_irqrestore(&ht_irq_lock, flags); 43 pci_write_config_dword(cfg->dev, cfg->pos + 4, msg->address_lo);
50} 44 }
51 45 if (cfg->msg.address_hi != msg->address_hi) {
52u32 read_ht_irq_low(unsigned int irq) 46 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx + 1);
53{ 47 pci_write_config_dword(cfg->dev, cfg->pos + 4, msg->address_hi);
54 struct ht_irq_cfg *cfg = get_irq_data(irq); 48 }
55 unsigned long flags; 49 if (cfg->update)
56 u32 data; 50 cfg->update(cfg->dev, irq, msg);
57 spin_lock_irqsave(&ht_irq_lock, flags);
58 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx);
59 pci_read_config_dword(cfg->dev, cfg->pos + 4, &data);
60 spin_unlock_irqrestore(&ht_irq_lock, flags); 51 spin_unlock_irqrestore(&ht_irq_lock, flags);
61 return data; 52 cfg->msg = *msg;
62} 53}
63 54
64u32 read_ht_irq_high(unsigned int irq) 55void fetch_ht_irq_msg(unsigned int irq, struct ht_irq_msg *msg)
65{ 56{
66 struct ht_irq_cfg *cfg = get_irq_data(irq); 57 struct ht_irq_cfg *cfg = get_irq_data(irq);
67 unsigned long flags; 58 *msg = cfg->msg;
68 u32 data;
69 spin_lock_irqsave(&ht_irq_lock, flags);
70 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx + 1);
71 pci_read_config_dword(cfg->dev, cfg->pos + 4, &data);
72 spin_unlock_irqrestore(&ht_irq_lock, flags);
73 return data;
74} 59}
75 60
76void mask_ht_irq(unsigned int irq) 61void mask_ht_irq(unsigned int irq)
77{ 62{
78 struct ht_irq_cfg *cfg; 63 struct ht_irq_cfg *cfg;
79 unsigned long flags; 64 struct ht_irq_msg msg;
80 u32 data;
81 65
82 cfg = get_irq_data(irq); 66 cfg = get_irq_data(irq);
83 67
84 spin_lock_irqsave(&ht_irq_lock, flags); 68 msg = cfg->msg;
85 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx); 69 msg.address_lo |= 1;
86 pci_read_config_dword(cfg->dev, cfg->pos + 4, &data); 70 write_ht_irq_msg(irq, &msg);
87 data |= 1;
88 pci_write_config_dword(cfg->dev, cfg->pos + 4, data);
89 spin_unlock_irqrestore(&ht_irq_lock, flags);
90} 71}
91 72
92void unmask_ht_irq(unsigned int irq) 73void unmask_ht_irq(unsigned int irq)
93{ 74{
94 struct ht_irq_cfg *cfg; 75 struct ht_irq_cfg *cfg;
95 unsigned long flags; 76 struct ht_irq_msg msg;
96 u32 data;
97 77
98 cfg = get_irq_data(irq); 78 cfg = get_irq_data(irq);
99 79
100 spin_lock_irqsave(&ht_irq_lock, flags); 80 msg = cfg->msg;
101 pci_write_config_byte(cfg->dev, cfg->pos + 2, cfg->idx); 81 msg.address_lo &= ~1;
102 pci_read_config_dword(cfg->dev, cfg->pos + 4, &data); 82 write_ht_irq_msg(irq, &msg);
103 data &= ~1;
104 pci_write_config_dword(cfg->dev, cfg->pos + 4, data);
105 spin_unlock_irqrestore(&ht_irq_lock, flags);
106} 83}
107 84
108/** 85/**
109 * ht_create_irq - create an irq and attach it to a device. 86 * __ht_create_irq - create an irq and attach it to a device.
110 * @dev: The hypertransport device to find the irq capability on. 87 * @dev: The hypertransport device to find the irq capability on.
111 * @idx: Which of the possible irqs to attach to. 88 * @idx: Which of the possible irqs to attach to.
112 * 89 * @update: Function to be called when changing the htirq message
113 * ht_create_irq is needs to be called for all hypertransport devices
114 * that generate irqs.
115 * 90 *
116 * The irq number of the new irq or a negative error value is returned. 91 * The irq number of the new irq or a negative error value is returned.
117 */ 92 */
118int ht_create_irq(struct pci_dev *dev, int idx) 93int __ht_create_irq(struct pci_dev *dev, int idx, ht_irq_update_t *update)
119{ 94{
120 struct ht_irq_cfg *cfg; 95 struct ht_irq_cfg *cfg;
121 unsigned long flags; 96 unsigned long flags;
@@ -150,8 +125,12 @@ int ht_create_irq(struct pci_dev *dev, int idx)
150 return -ENOMEM; 125 return -ENOMEM;
151 126
152 cfg->dev = dev; 127 cfg->dev = dev;
128 cfg->update = update;
153 cfg->pos = pos; 129 cfg->pos = pos;
154 cfg->idx = 0x10 + (idx * 2); 130 cfg->idx = 0x10 + (idx * 2);
131 /* Initialize msg to a value that will never match the first write. */
132 cfg->msg.address_lo = 0xffffffff;
133 cfg->msg.address_hi = 0xffffffff;
155 134
156 irq = create_irq(); 135 irq = create_irq();
157 if (irq < 0) { 136 if (irq < 0) {
@@ -169,6 +148,21 @@ int ht_create_irq(struct pci_dev *dev, int idx)
169} 148}
170 149
171/** 150/**
151 * ht_create_irq - create an irq and attach it to a device.
152 * @dev: The hypertransport device to find the irq capability on.
153 * @idx: Which of the possible irqs to attach to.
154 *
155 * ht_create_irq needs to be called for all hypertransport devices
156 * that generate irqs.
157 *
158 * The irq number of the new irq or a negative error value is returned.
159 */
160int ht_create_irq(struct pci_dev *dev, int idx)
161{
162 return __ht_create_irq(dev, idx, NULL);
163}
164
165/**
172 * ht_destroy_irq - destroy an irq created with ht_create_irq 166 * ht_destroy_irq - destroy an irq created with ht_create_irq
173 * 167 *
174 * This reverses ht_create_irq removing the specified irq from 168 * This reverses ht_create_irq removing the specified irq from
@@ -186,5 +180,6 @@ void ht_destroy_irq(unsigned int irq)
186 kfree(cfg); 180 kfree(cfg);
187} 181}
188 182
183EXPORT_SYMBOL(__ht_create_irq);
189EXPORT_SYMBOL(ht_create_irq); 184EXPORT_SYMBOL(ht_create_irq);
190EXPORT_SYMBOL(ht_destroy_irq); 185EXPORT_SYMBOL(ht_destroy_irq);
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index f9fdc54473c4..9fc9a34ef24a 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -627,22 +627,24 @@ static int msix_capability_init(struct pci_dev *dev,
627 * pci_msi_supported - check whether MSI may be enabled on device 627 * pci_msi_supported - check whether MSI may be enabled on device
628 * @dev: pointer to the pci_dev data structure of MSI device function 628 * @dev: pointer to the pci_dev data structure of MSI device function
629 * 629 *
630 * MSI must be globally enabled and supported by the device and its root 630 * Look at global flags, the device itself, and its parent busses
631 * bus. But, the root bus is not easy to find since some architectures 631 * to return 0 if MSI are supported for the device.
632 * have virtual busses on top of the PCI hierarchy (for instance the
633 * hypertransport bus), while the actual bus where MSI must be supported
634 * is below. So we test the MSI flag on all parent busses and assume
635 * that no quirk will ever set the NO_MSI flag on a non-root bus.
636 **/ 632 **/
637static 633static
638int pci_msi_supported(struct pci_dev * dev) 634int pci_msi_supported(struct pci_dev * dev)
639{ 635{
640 struct pci_bus *bus; 636 struct pci_bus *bus;
641 637
638 /* MSI must be globally enabled and supported by the device */
642 if (!pci_msi_enable || !dev || dev->no_msi) 639 if (!pci_msi_enable || !dev || dev->no_msi)
643 return -EINVAL; 640 return -EINVAL;
644 641
645 /* check MSI flags of all parent busses */ 642 /* Any bridge which does NOT route MSI transactions from it's
643 * secondary bus to it's primary bus must set NO_MSI flag on
644 * the secondary pci_bus.
645 * We expect only arch-specific PCI host bus controller driver
646 * or quirks for specific PCI bridges to be setting NO_MSI.
647 */
646 for (bus = dev->bus; bus; bus = bus->parent) 648 for (bus = dev->bus; bus; bus = bus->parent)
647 if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI) 649 if (bus->bus_flags & PCI_BUS_FLAGS_NO_MSI)
648 return -EINVAL; 650 return -EINVAL;
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index b1c0c707d96c..194f1d21d3d7 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -265,6 +265,13 @@ static int pci_device_remove(struct device * dev)
265 } 265 }
266 266
267 /* 267 /*
268 * If the device is still on, set the power state as "unknown",
269 * since it might change by the next time we load the driver.
270 */
271 if (pci_dev->current_state == PCI_D0)
272 pci_dev->current_state = PCI_UNKNOWN;
273
274 /*
268 * We would love to complain here if pci_dev->is_enabled is set, that 275 * We would love to complain here if pci_dev->is_enabled is set, that
269 * the driver should have called pci_disable_device(), but the 276 * the driver should have called pci_disable_device(), but the
270 * unfortunate fact is there are too many odd BIOS and bridge setups 277 * unfortunate fact is there are too many odd BIOS and bridge setups
@@ -288,6 +295,12 @@ static int pci_device_suspend(struct device * dev, pm_message_t state)
288 suspend_report_result(drv->suspend, i); 295 suspend_report_result(drv->suspend, i);
289 } else { 296 } else {
290 pci_save_state(pci_dev); 297 pci_save_state(pci_dev);
298 /*
299 * mark its power state as "unknown", since we don't know if
300 * e.g. the BIOS will change its device state when we suspend.
301 */
302 if (pci_dev->current_state == PCI_D0)
303 pci_dev->current_state = PCI_UNKNOWN;
291 } 304 }
292 return i; 305 return i;
293} 306}
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index a1d2e979b17f..f952bfea48a6 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -642,6 +642,9 @@ err:
642 */ 642 */
643void pci_remove_sysfs_dev_files(struct pci_dev *pdev) 643void pci_remove_sysfs_dev_files(struct pci_dev *pdev)
644{ 644{
645 if (!sysfs_initialized)
646 return;
647
645 if (pdev->cfg_size < 4096) 648 if (pdev->cfg_size < 4096)
646 sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr); 649 sysfs_remove_bin_file(&pdev->dev.kobj, &pci_config_attr);
647 else 650 else
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 67fcd176babd..3656e0349dd1 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -9,6 +9,8 @@
9#ifndef _PORTDRV_H_ 9#ifndef _PORTDRV_H_
10#define _PORTDRV_H_ 10#define _PORTDRV_H_
11 11
12#include <linux/compiler.h>
13
12#if !defined(PCI_CAP_ID_PME) 14#if !defined(PCI_CAP_ID_PME)
13#define PCI_CAP_ID_PME 1 15#define PCI_CAP_ID_PME 1
14#endif 16#endif
@@ -39,7 +41,7 @@ extern int pcie_port_device_suspend(struct pci_dev *dev, pm_message_t state);
39extern int pcie_port_device_resume(struct pci_dev *dev); 41extern int pcie_port_device_resume(struct pci_dev *dev);
40#endif 42#endif
41extern void pcie_port_device_remove(struct pci_dev *dev); 43extern void pcie_port_device_remove(struct pci_dev *dev);
42extern int pcie_port_bus_register(void); 44extern int __must_check pcie_port_bus_register(void);
43extern void pcie_port_bus_unregister(void); 45extern void pcie_port_bus_unregister(void);
44 46
45#endif /* _PORTDRV_H_ */ 47#endif /* _PORTDRV_H_ */
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index bd6615b4d40e..b20a9b81dae2 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -6,7 +6,6 @@
6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com) 6 * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
7 */ 7 */
8 8
9#include <linux/compiler.h>
10#include <linux/module.h> 9#include <linux/module.h>
11#include <linux/pci.h> 10#include <linux/pci.h>
12#include <linux/kernel.h> 11#include <linux/kernel.h>
@@ -401,7 +400,7 @@ void pcie_port_device_remove(struct pci_dev *dev)
401 pci_disable_msi(dev); 400 pci_disable_msi(dev);
402} 401}
403 402
404int __must_check pcie_port_bus_register(void) 403int pcie_port_bus_register(void)
405{ 404{
406 return bus_register(&pcie_port_bus_type); 405 return bus_register(&pcie_port_bus_type);
407} 406}
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 037690e08f5f..b4da7954611e 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -37,7 +37,6 @@ static int pcie_portdrv_save_config(struct pci_dev *dev)
37 return pci_save_state(dev); 37 return pci_save_state(dev);
38} 38}
39 39
40#ifdef CONFIG_PM
41static int pcie_portdrv_restore_config(struct pci_dev *dev) 40static int pcie_portdrv_restore_config(struct pci_dev *dev)
42{ 41{
43 int retval; 42 int retval;
@@ -50,6 +49,7 @@ static int pcie_portdrv_restore_config(struct pci_dev *dev)
50 return 0; 49 return 0;
51} 50}
52 51
52#ifdef CONFIG_PM
53static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state) 53static int pcie_portdrv_suspend(struct pci_dev *dev, pm_message_t state)
54{ 54{
55 int ret = pcie_port_device_suspend(dev, state); 55 int ret = pcie_port_device_suspend(dev, state);
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index a3b0a5eb5054..e159d6604494 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1067,3 +1067,95 @@ EXPORT_SYMBOL(pci_scan_bridge);
1067EXPORT_SYMBOL(pci_scan_single_device); 1067EXPORT_SYMBOL(pci_scan_single_device);
1068EXPORT_SYMBOL_GPL(pci_scan_child_bus); 1068EXPORT_SYMBOL_GPL(pci_scan_child_bus);
1069#endif 1069#endif
1070
1071static int __init pci_sort_bf_cmp(const struct pci_dev *a, const struct pci_dev *b)
1072{
1073 if (pci_domain_nr(a->bus) < pci_domain_nr(b->bus)) return -1;
1074 else if (pci_domain_nr(a->bus) > pci_domain_nr(b->bus)) return 1;
1075
1076 if (a->bus->number < b->bus->number) return -1;
1077 else if (a->bus->number > b->bus->number) return 1;
1078
1079 if (a->devfn < b->devfn) return -1;
1080 else if (a->devfn > b->devfn) return 1;
1081
1082 return 0;
1083}
1084
1085/*
1086 * Yes, this forcably breaks the klist abstraction temporarily. It
1087 * just wants to sort the klist, not change reference counts and
1088 * take/drop locks rapidly in the process. It does all this while
1089 * holding the lock for the list, so objects can't otherwise be
1090 * added/removed while we're swizzling.
1091 */
1092static void __init pci_insertion_sort_klist(struct pci_dev *a, struct list_head *list)
1093{
1094 struct list_head *pos;
1095 struct klist_node *n;
1096 struct device *dev;
1097 struct pci_dev *b;
1098
1099 list_for_each(pos, list) {
1100 n = container_of(pos, struct klist_node, n_node);
1101 dev = container_of(n, struct device, knode_bus);
1102 b = to_pci_dev(dev);
1103 if (pci_sort_bf_cmp(a, b) <= 0) {
1104 list_move_tail(&a->dev.knode_bus.n_node, &b->dev.knode_bus.n_node);
1105 return;
1106 }
1107 }
1108 list_move_tail(&a->dev.knode_bus.n_node, list);
1109}
1110
1111static void __init pci_sort_breadthfirst_klist(void)
1112{
1113 LIST_HEAD(sorted_devices);
1114 struct list_head *pos, *tmp;
1115 struct klist_node *n;
1116 struct device *dev;
1117 struct pci_dev *pdev;
1118
1119 spin_lock(&pci_bus_type.klist_devices.k_lock);
1120 list_for_each_safe(pos, tmp, &pci_bus_type.klist_devices.k_list) {
1121 n = container_of(pos, struct klist_node, n_node);
1122 dev = container_of(n, struct device, knode_bus);
1123 pdev = to_pci_dev(dev);
1124 pci_insertion_sort_klist(pdev, &sorted_devices);
1125 }
1126 list_splice(&sorted_devices, &pci_bus_type.klist_devices.k_list);
1127 spin_unlock(&pci_bus_type.klist_devices.k_lock);
1128}
1129
1130static void __init pci_insertion_sort_devices(struct pci_dev *a, struct list_head *list)
1131{
1132 struct pci_dev *b;
1133
1134 list_for_each_entry(b, list, global_list) {
1135 if (pci_sort_bf_cmp(a, b) <= 0) {
1136 list_move_tail(&a->global_list, &b->global_list);
1137 return;
1138 }
1139 }
1140 list_move_tail(&a->global_list, list);
1141}
1142
1143static void __init pci_sort_breadthfirst_devices(void)
1144{
1145 LIST_HEAD(sorted_devices);
1146 struct pci_dev *dev, *tmp;
1147
1148 down_write(&pci_bus_sem);
1149 list_for_each_entry_safe(dev, tmp, &pci_devices, global_list) {
1150 pci_insertion_sort_devices(dev, &sorted_devices);
1151 }
1152 list_splice(&sorted_devices, &pci_devices);
1153 up_write(&pci_bus_sem);
1154}
1155
1156void __init pci_sort_breadthfirst(void)
1157{
1158 pci_sort_breadthfirst_devices();
1159 pci_sort_breadthfirst_klist();
1160}
1161
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 23b599d6a9d5..5b4483811691 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -453,6 +453,12 @@ static void __devinit quirk_ich6_lpc_acpi(struct pci_dev *dev)
453} 453}
454DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi ); 454DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_0, quirk_ich6_lpc_acpi );
455DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi ); 455DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_1, quirk_ich6_lpc_acpi );
456DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, quirk_ich6_lpc_acpi );
457DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, quirk_ich6_lpc_acpi );
458DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_31, quirk_ich6_lpc_acpi );
459DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_0, quirk_ich6_lpc_acpi );
460DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_2, quirk_ich6_lpc_acpi );
461DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH8_3, quirk_ich6_lpc_acpi );
456 462
457/* 463/*
458 * VIA ACPI: One IO region pointed to by longword at 464 * VIA ACPI: One IO region pointed to by longword at
@@ -648,11 +654,43 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_vi
648 * Some of the on-chip devices are actually '586 devices' so they are 654 * Some of the on-chip devices are actually '586 devices' so they are
649 * listed here. 655 * listed here.
650 */ 656 */
657
658static int via_irq_fixup_needed = -1;
659
660/*
661 * As some VIA hardware is available in PCI-card form, we need to restrict
662 * this quirk to VIA PCI hardware built onto VIA-based motherboards only.
663 * We try to locate a VIA southbridge before deciding whether the quirk
664 * should be applied.
665 */
666static const struct pci_device_id via_irq_fixup_tbl[] = {
667 {
668 .vendor = PCI_VENDOR_ID_VIA,
669 .device = PCI_ANY_ID,
670 .subvendor = PCI_ANY_ID,
671 .subdevice = PCI_ANY_ID,
672 .class = PCI_CLASS_BRIDGE_ISA << 8,
673 .class_mask = 0xffff00,
674 },
675 { 0, },
676};
677
651static void quirk_via_irq(struct pci_dev *dev) 678static void quirk_via_irq(struct pci_dev *dev)
652{ 679{
653 u8 irq, new_irq; 680 u8 irq, new_irq;
654 681
655 new_irq = dev->irq & 0xf; 682 if (via_irq_fixup_needed == -1)
683 via_irq_fixup_needed = pci_dev_present(via_irq_fixup_tbl);
684
685 if (!via_irq_fixup_needed)
686 return;
687
688 new_irq = dev->irq;
689
690 /* Don't quirk interrupts outside the legacy IRQ range */
691 if (!new_irq || new_irq > 15)
692 return;
693
656 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); 694 pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq);
657 if (new_irq != irq) { 695 if (new_irq != irq) {
658 printk(KERN_INFO "PCI: VIA IRQ fixup for %s, from %d to %d\n", 696 printk(KERN_INFO "PCI: VIA IRQ fixup for %s, from %d to %d\n",
@@ -661,14 +699,7 @@ static void quirk_via_irq(struct pci_dev *dev)
661 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq); 699 pci_write_config_byte(dev, PCI_INTERRUPT_LINE, new_irq);
662 } 700 }
663} 701}
664DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0, quirk_via_irq); 702DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_ANY_ID, quirk_via_irq);
665DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, quirk_via_irq);
666DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, quirk_via_irq);
667DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_3, quirk_via_irq);
668DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235_USB_2, quirk_via_irq);
669DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, quirk_via_irq);
670DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_4, quirk_via_irq);
671DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686_5, quirk_via_irq);
672 703
673/* 704/*
674 * VIA VT82C598 has its device ID settable and many BIOSes 705 * VIA VT82C598 has its device ID settable and many BIOSes
@@ -683,33 +714,6 @@ static void __devinit quirk_vt82c598_id(struct pci_dev *dev)
683} 714}
684DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id ); 715DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C597_0, quirk_vt82c598_id );
685 716
686#ifdef CONFIG_ACPI_SLEEP
687
688/*
689 * Some VIA systems boot with the abnormal status flag set. This can cause
690 * the BIOS to re-POST the system on resume rather than passing control
691 * back to the OS. Clear the flag on boot
692 */
693static void __devinit quirk_via_abnormal_poweroff(struct pci_dev *dev)
694{
695 u32 reg;
696
697 acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS,
698 &reg);
699
700 if (reg & 0x800) {
701 printk("Clearing abnormal poweroff flag\n");
702 acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK,
703 ACPI_REGISTER_PM1_STATUS,
704 (u16)0x800);
705 }
706}
707
708DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8235, quirk_via_abnormal_poweroff);
709DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8237, quirk_via_abnormal_poweroff);
710
711#endif
712
713/* 717/*
714 * CardBus controllers have a legacy base address that enables them 718 * CardBus controllers have a legacy base address that enables them
715 * to respond as i82365 pcmcia controllers. We don't want them to 719 * to respond as i82365 pcmcia controllers. We don't want them to
@@ -1456,33 +1460,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x2609, quirk_intel_pcie_pm);
1456DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm); 1460DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260a, quirk_intel_pcie_pm);
1457DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm); 1461DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x260b, quirk_intel_pcie_pm);
1458 1462
1459/*
1460 * Fixup the cardbus bridges on the IBM Dock II docking station
1461 */
1462static void __devinit quirk_ibm_dock2_cardbus(struct pci_dev *dev)
1463{
1464 u32 val;
1465
1466 /*
1467 * tie the 2 interrupt pins to INTA, and configure the
1468 * multifunction routing register to handle this.
1469 */
1470 if ((dev->subsystem_vendor == PCI_VENDOR_ID_IBM) &&
1471 (dev->subsystem_device == 0x0148)) {
1472 printk(KERN_INFO "PCI: Found IBM Dock II Cardbus Bridge "
1473 "applying quirk\n");
1474 pci_read_config_dword(dev, 0x8c, &val);
1475 val = ((val & 0xffffff00) | 0x1002);
1476 pci_write_config_dword(dev, 0x8c, val);
1477 pci_read_config_dword(dev, 0x80, &val);
1478 val = ((val & 0x00ffff00) | 0x2864c077);
1479 pci_write_config_dword(dev, 0x80, val);
1480 }
1481}
1482
1483DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1420,
1484 quirk_ibm_dock2_cardbus);
1485
1486static void __devinit quirk_netmos(struct pci_dev *dev) 1463static void __devinit quirk_netmos(struct pci_dev *dev)
1487{ 1464{
1488 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4; 1465 unsigned int num_parallel = (dev->subsystem_device & 0xf0) >> 4;
@@ -1588,7 +1565,6 @@ static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
1588} 1565}
1589DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810); 1566DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
1590 1567
1591
1592static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) 1568static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
1593{ 1569{
1594 while (f < end) { 1570 while (f < end) {
@@ -1764,7 +1740,7 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1764 /* check HT MSI cap on this chipset and the root one. 1740 /* check HT MSI cap on this chipset and the root one.
1765 * a single one having MSI is enough to be sure that MSI are supported. 1741 * a single one having MSI is enough to be sure that MSI are supported.
1766 */ 1742 */
1767 pdev = pci_find_slot(dev->bus->number, 0); 1743 pdev = pci_get_slot(dev->bus, 0);
1768 if (dev->subordinate && !msi_ht_cap_enabled(dev) 1744 if (dev->subordinate && !msi_ht_cap_enabled(dev)
1769 && !msi_ht_cap_enabled(pdev)) { 1745 && !msi_ht_cap_enabled(pdev)) {
1770 printk(KERN_WARNING "PCI: MSI quirk detected. " 1746 printk(KERN_WARNING "PCI: MSI quirk detected. "
@@ -1772,6 +1748,7 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
1772 pci_name(dev)); 1748 pci_name(dev));
1773 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI; 1749 dev->subordinate->bus_flags |= PCI_BUS_FLAGS_NO_MSI;
1774 } 1750 }
1751 pci_dev_put(pdev);
1775} 1752}
1776DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE, 1753DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
1777 quirk_nvidia_ck804_msi_ht_cap); 1754 quirk_nvidia_ck804_msi_ht_cap);
diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c
index f5ee7ce16fa6..e1dcefc69bb4 100644
--- a/drivers/pci/rom.c
+++ b/drivers/pci/rom.c
@@ -71,7 +71,11 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)
71 void __iomem *image; 71 void __iomem *image;
72 int last_image; 72 int last_image;
73 73
74 /* IORESOURCE_ROM_SHADOW only set on x86 */ 74 /*
75 * IORESOURCE_ROM_SHADOW set on x86, x86_64 and IA64 supports legacy
76 * memory map if the VGA enable bit of the Bridge Control register is
77 * set for embedded VGA.
78 */
75 if (res->flags & IORESOURCE_ROM_SHADOW) { 79 if (res->flags & IORESOURCE_ROM_SHADOW) {
76 /* primary video rom always starts here */ 80 /* primary video rom always starts here */
77 start = (loff_t)0xC0000; 81 start = (loff_t)0xC0000;
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index d529462d1b53..2f13eba5d5ae 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -140,6 +140,31 @@ struct pci_dev * pci_get_slot(struct pci_bus *bus, unsigned int devfn)
140} 140}
141 141
142/** 142/**
143 * pci_get_bus_and_slot - locate PCI device from a given PCI slot
144 * @bus: number of PCI bus on which desired PCI device resides
145 * @devfn: encodes number of PCI slot in which the desired PCI
146 * device resides and the logical device number within that slot
147 * in case of multi-function devices.
148 *
149 * Given a PCI bus and slot/function number, the desired PCI device
150 * is located in system global list of PCI devices. If the device
151 * is found, a pointer to its data structure is returned. If no
152 * device is found, %NULL is returned. The returned device has its
153 * reference count bumped by one.
154 */
155
156struct pci_dev * pci_get_bus_and_slot(unsigned int bus, unsigned int devfn)
157{
158 struct pci_dev *dev = NULL;
159
160 while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
161 if (dev->bus->number == bus && dev->devfn == devfn)
162 return dev;
163 }
164 return NULL;
165}
166
167/**
143 * pci_find_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id 168 * pci_find_subsys - begin or continue searching for a PCI device by vendor/subvendor/device/subdevice id
144 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids 169 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
145 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids 170 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
@@ -274,6 +299,45 @@ pci_get_device(unsigned int vendor, unsigned int device, struct pci_dev *from)
274 return pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from); 299 return pci_get_subsys(vendor, device, PCI_ANY_ID, PCI_ANY_ID, from);
275} 300}
276 301
302/**
303 * pci_get_device_reverse - begin or continue searching for a PCI device by vendor/device id
304 * @vendor: PCI vendor id to match, or %PCI_ANY_ID to match all vendor ids
305 * @device: PCI device id to match, or %PCI_ANY_ID to match all device ids
306 * @from: Previous PCI device found in search, or %NULL for new search.
307 *
308 * Iterates through the list of known PCI devices in the reverse order of
309 * pci_get_device.
310 * If a PCI device is found with a matching @vendor and @device, the reference
311 * count to the device is incremented and a pointer to its device structure
312 * is returned Otherwise, %NULL is returned. A new search is initiated by
313 * passing %NULL as the @from argument. Otherwise if @from is not %NULL,
314 * searches continue from next device on the global list. The reference
315 * count for @from is always decremented if it is not %NULL.
316 */
317struct pci_dev *
318pci_get_device_reverse(unsigned int vendor, unsigned int device, struct pci_dev *from)
319{
320 struct list_head *n;
321 struct pci_dev *dev;
322
323 WARN_ON(in_interrupt());
324 down_read(&pci_bus_sem);
325 n = from ? from->global_list.prev : pci_devices.prev;
326
327 while (n && (n != &pci_devices)) {
328 dev = pci_dev_g(n);
329 if ((vendor == PCI_ANY_ID || dev->vendor == vendor) &&
330 (device == PCI_ANY_ID || dev->device == device))
331 goto exit;
332 n = n->prev;
333 }
334 dev = NULL;
335exit:
336 dev = pci_dev_get(dev);
337 up_read(&pci_bus_sem);
338 pci_dev_put(from);
339 return dev;
340}
277 341
278/** 342/**
279 * pci_find_device_reverse - begin or continue searching for a PCI device by vendor/device id 343 * pci_find_device_reverse - begin or continue searching for a PCI device by vendor/device id
@@ -382,12 +446,16 @@ exit:
382} 446}
383EXPORT_SYMBOL(pci_dev_present); 447EXPORT_SYMBOL(pci_dev_present);
384 448
385EXPORT_SYMBOL(pci_find_bus);
386EXPORT_SYMBOL(pci_find_next_bus);
387EXPORT_SYMBOL(pci_find_device); 449EXPORT_SYMBOL(pci_find_device);
388EXPORT_SYMBOL(pci_find_device_reverse); 450EXPORT_SYMBOL(pci_find_device_reverse);
389EXPORT_SYMBOL(pci_find_slot); 451EXPORT_SYMBOL(pci_find_slot);
452/* For boot time work */
453EXPORT_SYMBOL(pci_find_bus);
454EXPORT_SYMBOL(pci_find_next_bus);
455/* For everyone */
390EXPORT_SYMBOL(pci_get_device); 456EXPORT_SYMBOL(pci_get_device);
457EXPORT_SYMBOL(pci_get_device_reverse);
391EXPORT_SYMBOL(pci_get_subsys); 458EXPORT_SYMBOL(pci_get_subsys);
392EXPORT_SYMBOL(pci_get_slot); 459EXPORT_SYMBOL(pci_get_slot);
460EXPORT_SYMBOL(pci_get_bus_and_slot);
393EXPORT_SYMBOL(pci_get_class); 461EXPORT_SYMBOL(pci_get_class);
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 05:02:22 -0500