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PCI: Shuffle pci-acpi.c functions to group them logically

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Move code around to put all the ACPI power management stuff together and
all the pieces related to ACPI methods (_CBA, _HPP, _HPX) together.

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bjorn Helgaas 2014-09-12 15:36:29 -06:00
parent abbfec34e1
commit 5e3d234456
1 changed files with 67 additions and 67 deletions
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134
drivers/pci/pci-acpi.c
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@ -18,73 +18,6 @@
#include <linux/pm_qos.h>
#include "pci.h"
/**
* pci_acpi_wake_bus - Root bus wakeup notification fork function.
* @work: Work item to handle.
*/
static void pci_acpi_wake_bus(struct work_struct *work)
{
struct acpi_device *adev;
struct acpi_pci_root *root;
adev = container_of(work, struct acpi_device, wakeup.context.work);
root = acpi_driver_data(adev);
pci_pme_wakeup_bus(root->bus);
}
/**
* pci_acpi_wake_dev - PCI device wakeup notification work function.
* @handle: ACPI handle of a device the notification is for.
* @work: Work item to handle.
*/
static void pci_acpi_wake_dev(struct work_struct *work)
{
struct acpi_device_wakeup_context *context;
struct pci_dev *pci_dev;
context = container_of(work, struct acpi_device_wakeup_context, work);
pci_dev = to_pci_dev(context->dev);
if (pci_dev->pme_poll)
pci_dev->pme_poll = false;
if (pci_dev->current_state == PCI_D3cold) {
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
return;
}
/* Clear PME Status if set. */
if (pci_dev->pme_support)
pci_check_pme_status(pci_dev);
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
if (pci_dev->subordinate)
pci_pme_wakeup_bus(pci_dev->subordinate);
}
/**
* pci_acpi_add_bus_pm_notifier - Register PM notifier for root PCI bus.
* @dev: PCI root bridge ACPI device.
*/
acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev)
{
return acpi_add_pm_notifier(dev, NULL, pci_acpi_wake_bus);
}
/**
* pci_acpi_add_pm_notifier - Register PM notifier for given PCI device.
* @dev: ACPI device to add the notifier for.
* @pci_dev: PCI device to check for the PME status if an event is signaled.
*/
acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
struct pci_dev *pci_dev)
{
return acpi_add_pm_notifier(dev, &pci_dev->dev, pci_acpi_wake_dev);
}
phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
{
acpi_status status = AE_NOT_EXIST;
@ -346,6 +279,73 @@ int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp)
}
EXPORT_SYMBOL_GPL(pci_get_hp_params);
/**
* pci_acpi_wake_bus - Root bus wakeup notification fork function.
* @work: Work item to handle.
*/
static void pci_acpi_wake_bus(struct work_struct *work)
{
struct acpi_device *adev;
struct acpi_pci_root *root;
adev = container_of(work, struct acpi_device, wakeup.context.work);
root = acpi_driver_data(adev);
pci_pme_wakeup_bus(root->bus);
}
/**
* pci_acpi_wake_dev - PCI device wakeup notification work function.
* @handle: ACPI handle of a device the notification is for.
* @work: Work item to handle.
*/
static void pci_acpi_wake_dev(struct work_struct *work)
{
struct acpi_device_wakeup_context *context;
struct pci_dev *pci_dev;
context = container_of(work, struct acpi_device_wakeup_context, work);
pci_dev = to_pci_dev(context->dev);
if (pci_dev->pme_poll)
pci_dev->pme_poll = false;
if (pci_dev->current_state == PCI_D3cold) {
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
return;
}
/* Clear PME Status if set. */
if (pci_dev->pme_support)
pci_check_pme_status(pci_dev);
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
if (pci_dev->subordinate)
pci_pme_wakeup_bus(pci_dev->subordinate);
}
/**
* pci_acpi_add_bus_pm_notifier - Register PM notifier for root PCI bus.
* @dev: PCI root bridge ACPI device.
*/
acpi_status pci_acpi_add_bus_pm_notifier(struct acpi_device *dev)
{
return acpi_add_pm_notifier(dev, NULL, pci_acpi_wake_bus);
}
/**
* pci_acpi_add_pm_notifier - Register PM notifier for given PCI device.
* @dev: ACPI device to add the notifier for.
* @pci_dev: PCI device to check for the PME status if an event is signaled.
*/
acpi_status pci_acpi_add_pm_notifier(struct acpi_device *dev,
struct pci_dev *pci_dev)
{
return acpi_add_pm_notifier(dev, &pci_dev->dev, pci_acpi_wake_dev);
}
/*
* _SxD returns the D-state with the highest power
* (lowest D-state number) supported in the S-state "x".