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Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

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* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (75 commits)
  PCI hotplug: clean up acpi_run_hpp()
  PCI hotplug: acpiphp: use generic pci_configure_slot()
  PCI hotplug: shpchp: use generic pci_configure_slot()
  PCI hotplug: pciehp: use generic pci_configure_slot()
  PCI hotplug: add pci_configure_slot()
  PCI hotplug: clean up acpi_get_hp_params_from_firmware() interface
  PCI hotplug: acpiphp: don't cache hotplug_params in acpiphp_bridge
  PCI hotplug: acpiphp: remove superfluous _HPP/_HPX evaluation
  PCI: Clear saved_state after the state has been restored
  PCI PM: Return error codes from pci_pm_resume()
  PCI: use dev_printk in quirk messages
  PCI / PCIe portdrv: Fix pcie_portdrv_slot_reset()
  PCI Hotplug: convert acpi_pci_detect_ejectable() to take an acpi_handle
  PCI Hotplug: acpiphp: find bridges the easy way
  PCI: pcie portdrv: remove unused variable
  PCI / ACPI PM: Propagate wake-up enable for devices w/o ACPI support
  ACPI PM: Replace wakeup.prepared with reference counter
  PCI PM: Introduce device flag wakeup_prepared
  PCI / ACPI PM: Rework some debug messages
  PCI PM: Simplify PCI wake-up code
  ...

Fixed up conflict in arch/powerpc/kernel/pci_64.c due to OF device tree
scanning having been moved and merged for the 32- and 64-bit cases.  The
'needs_freset' initialization added in 6e19314cc ("PCI/powerpc: support
PCIe fundamental reset") is now in arch/powerpc/kernel/pci_of_scan.c.
This commit is contained in:
Linus Torvalds
2009-09-16 07:49:54 -07:00
parent 6b7b352f21 5e3573db2b
commit 4406c56d0a
75 changed files with 3147 additions and 1382 deletions
Download Patch File Download Diff File Expand all files Collapse all files

134
drivers/pci/pci-driver.c
View File

@@ -19,37 +19,98 @@
#include <linux/cpu.h>
#include "pci.h"
/*
* Dynamic device IDs are disabled for !CONFIG_HOTPLUG
*/
struct pci_dynid {
struct list_head node;
struct pci_device_id id;
};
#ifdef CONFIG_HOTPLUG
/**
* store_new_id - add a new PCI device ID to this driver and re-probe devices
* pci_add_dynid - add a new PCI device ID to this driver and re-probe devices
* @drv: target pci driver
* @vendor: PCI vendor ID
* @device: PCI device ID
* @subvendor: PCI subvendor ID
* @subdevice: PCI subdevice ID
* @class: PCI class
* @class_mask: PCI class mask
* @driver_data: private driver data
*
* Adds a new dynamic pci device ID to this driver and causes the
* driver to probe for all devices again. @drv must have been
* registered prior to calling this function.
*
* CONTEXT:
* Does GFP_KERNEL allocation.
*
* RETURNS:
* 0 on success, -errno on failure.
*/
int pci_add_dynid(struct pci_driver *drv,
unsigned int vendor, unsigned int device,
unsigned int subvendor, unsigned int subdevice,
unsigned int class, unsigned int class_mask,
unsigned long driver_data)
{
struct pci_dynid *dynid;
int retval;
dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
if (!dynid)
return -ENOMEM;
dynid->id.vendor = vendor;
dynid->id.device = device;
dynid->id.subvendor = subvendor;
dynid->id.subdevice = subdevice;
dynid->id.class = class;
dynid->id.class_mask = class_mask;
dynid->id.driver_data = driver_data;
spin_lock(&drv->dynids.lock);
list_add_tail(&dynid->node, &drv->dynids.list);
spin_unlock(&drv->dynids.lock);
get_driver(&drv->driver);
retval = driver_attach(&drv->driver);
put_driver(&drv->driver);
return retval;
}
static void pci_free_dynids(struct pci_driver *drv)
{
struct pci_dynid *dynid, *n;
spin_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
spin_unlock(&drv->dynids.lock);
}
/*
* Dynamic device ID manipulation via sysfs is disabled for !CONFIG_HOTPLUG
*/
#ifdef CONFIG_HOTPLUG
/**
* store_new_id - sysfs frontend to pci_add_dynid()
* @driver: target device driver
* @buf: buffer for scanning device ID data
* @count: input size
*
* Adds a new dynamic pci device ID to this driver,
* and causes the driver to probe for all devices again.
* Allow PCI IDs to be added to an existing driver via sysfs.
*/
static ssize_t
store_new_id(struct device_driver *driver, const char *buf, size_t count)
{
struct pci_dynid *dynid;
struct pci_driver *pdrv = to_pci_driver(driver);
const struct pci_device_id *ids = pdrv->id_table;
__u32 vendor, device, subvendor=PCI_ANY_ID,
subdevice=PCI_ANY_ID, class=0, class_mask=0;
unsigned long driver_data=0;
int fields=0;
int retval=0;
int retval;
fields = sscanf(buf, "%x %x %x %x %x %x %lx",
&vendor, &device, &subvendor, &subdevice,
@@ -72,27 +133,8 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
return retval;
}
dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
if (!dynid)
return -ENOMEM;
dynid->id.vendor = vendor;
dynid->id.device = device;
dynid->id.subvendor = subvendor;
dynid->id.subdevice = subdevice;
dynid->id.class = class;
dynid->id.class_mask = class_mask;
dynid->id.driver_data = driver_data;
spin_lock(&pdrv->dynids.lock);
list_add_tail(&dynid->node, &pdrv->dynids.list);
spin_unlock(&pdrv->dynids.lock);
if (get_driver(&pdrv->driver)) {
retval = driver_attach(&pdrv->driver);
put_driver(&pdrv->driver);
}
retval = pci_add_dynid(pdrv, vendor, device, subvendor, subdevice,
class, class_mask, driver_data);
if (retval)
return retval;
return count;
@@ -145,19 +187,6 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
}
static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
static void
pci_free_dynids(struct pci_driver *drv)
{
struct pci_dynid *dynid, *n;
spin_lock(&drv->dynids.lock);
list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) {
list_del(&dynid->node);
kfree(dynid);
}
spin_unlock(&drv->dynids.lock);
}
static int
pci_create_newid_file(struct pci_driver *drv)
{
@@ -186,7 +215,6 @@ static void pci_remove_removeid_file(struct pci_driver *drv)
driver_remove_file(&drv->driver, &driver_attr_remove_id);
}
#else /* !CONFIG_HOTPLUG */
static inline void pci_free_dynids(struct pci_driver *drv) {}
static inline int pci_create_newid_file(struct pci_driver *drv)
{
return 0;
@@ -417,8 +445,6 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
struct pci_dev * pci_dev = to_pci_dev(dev);
struct pci_driver * drv = pci_dev->driver;
pci_dev->state_saved = false;
if (drv && drv->suspend) {
pci_power_t prev = pci_dev->current_state;
int error;
@@ -514,7 +540,6 @@ static int pci_restore_standard_config(struct pci_dev *pci_dev)
static void pci_pm_default_resume_noirq(struct pci_dev *pci_dev)
{
pci_restore_standard_config(pci_dev);
pci_dev->state_saved = false;
pci_fixup_device(pci_fixup_resume_early, pci_dev);
}
@@ -580,8 +605,6 @@ static int pci_pm_suspend(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_SUSPEND);
pci_dev->state_saved = false;
if (!pm) {
pci_pm_default_suspend(pci_dev);
goto Fixup;
@@ -694,7 +717,7 @@ static int pci_pm_resume(struct device *dev)
pci_pm_reenable_device(pci_dev);
}
return 0;
return error;
}
#else /* !CONFIG_SUSPEND */
@@ -716,8 +739,6 @@ static int pci_pm_freeze(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_FREEZE);
pci_dev->state_saved = false;
if (!pm) {
pci_pm_default_suspend(pci_dev);
return 0;
@@ -793,6 +814,8 @@ static int pci_pm_thaw(struct device *dev)
pci_pm_reenable_device(pci_dev);
}
pci_dev->state_saved = false;
return error;
}
@@ -804,8 +827,6 @@ static int pci_pm_poweroff(struct device *dev)
if (pci_has_legacy_pm_support(pci_dev))
return pci_legacy_suspend(dev, PMSG_HIBERNATE);
pci_dev->state_saved = false;
if (!pm) {
pci_pm_default_suspend(pci_dev);
goto Fixup;
@@ -1106,6 +1127,7 @@ static int __init pci_driver_init(void)
postcore_initcall(pci_driver_init);
EXPORT_SYMBOL_GPL(pci_add_dynid);
EXPORT_SYMBOL(pci_match_id);
EXPORT_SYMBOL(__pci_register_driver);
EXPORT_SYMBOL(pci_unregister_driver);