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Merge branch 'acpi-resources'

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* acpi-resources: (23 commits)
  Merge branch 'pci/host-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into acpi-resources
  x86/irq, ACPI: Implement ACPI driver to support IOAPIC hotplug
  ACPI: Add interfaces to parse IOAPIC ID for IOAPIC hotplug
  x86/PCI: Refine the way to release PCI IRQ resources
  x86/PCI/ACPI: Use common ACPI resource interfaces to simplify implementation
  x86/PCI: Fix the range check for IO resources
  PCI: Use common resource list management code instead of private implementation
  resources: Move struct resource_list_entry from ACPI into resource core
  ACPI: Introduce helper function acpi_dev_filter_resource_type()
  ACPI: Add field offset to struct resource_list_entry
  ACPI: Translate resource into master side address for bridge window resources
  ACPI: Return translation offset when parsing ACPI address space resources
  ACPI: Enforce stricter checks for address space descriptors
  ACPI: Set flag IORESOURCE_UNSET for unassigned resources
  ACPI: Normalize return value of resource parser functions
  ACPI: Fix a bug in parsing ACPI Memory24 resource
  ACPI: Add prefetch decoding to the address space parser
  ACPI: Move the window flag logic to the combined parser
  ACPI: Unify the parsing of address_space and ext_address_space
  ACPI: Let the parser return false for disabled resources
  ...
This commit is contained in:
Rafael J. Wysocki 2015-02-10 16:05:16 +01:00
commit 8fbcf5ecb3
30 changed files with 879 additions and 456 deletions
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34
arch/x86/pci/common.c
View file

@ -513,6 +513,31 @@ void __init pcibios_set_cache_line_size(void)
}
}
/*
* Some device drivers assume dev->irq won't change after calling
* pci_disable_device(). So delay releasing of IRQ resource to driver
* unbinding time. Otherwise it will break PM subsystem and drivers
* like xen-pciback etc.
*/
static int pci_irq_notifier(struct notifier_block *nb, unsigned long action,
void *data)
{
struct pci_dev *dev = to_pci_dev(data);
if (action != BUS_NOTIFY_UNBOUND_DRIVER)
return NOTIFY_DONE;
if (pcibios_disable_irq)
pcibios_disable_irq(dev);
return NOTIFY_OK;
}
static struct notifier_block pci_irq_nb = {
.notifier_call = pci_irq_notifier,
.priority = INT_MIN,
};
int __init pcibios_init(void)
{
if (!raw_pci_ops) {
@ -525,6 +550,9 @@ int __init pcibios_init(void)
if (pci_bf_sort >= pci_force_bf)
pci_sort_breadthfirst();
bus_register_notifier(&pci_bus_type, &pci_irq_nb);
return 0;
}
@ -683,12 +711,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
return 0;
}
void pcibios_disable_device (struct pci_dev *dev)
{
if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq)
pcibios_disable_irq(dev);
}
int pci_ext_cfg_avail(void)
{
if (raw_pci_ext_ops)