提交 d4761ba2 编写于 作者: B Bjorn Helgaas

PCI/ACPI: Add _PRT interrupt routing info before enumerating devices

We used to add the _PRT after enumerating devices behind a new host
bridge.  This moves the _PRT addition *before* the enumeration, since
it no longer depends on the struct pci_bus existing.  This is one
step towards consolidating the .add/.start methods.
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
Signed-off-by: NTaku Izumi <izumim.taku@jp.fujitsu.com>
上级 79c44122
......@@ -501,6 +501,20 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
device->driver_data = root;
printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
acpi_device_name(device), acpi_device_bid(device),
root->segment, &root->secondary);
/*
* PCI Routing Table
* -----------------
* Evaluate and parse _PRT, if exists.
*/
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status))
result = acpi_pci_irq_add_prt(device->handle, root->segment,
root->secondary.start);
root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
/*
......@@ -518,10 +532,6 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
list_add_tail(&root->node, &acpi_pci_roots);
mutex_unlock(&acpi_pci_root_lock);
printk(KERN_INFO PREFIX "%s [%s] (domain %04x %pR)\n",
acpi_device_name(device), acpi_device_bid(device),
root->segment, &root->secondary);
/*
* Scan the Root Bridge
* --------------------
......@@ -547,16 +557,6 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (result)
goto out_del_root;
/*
* PCI Routing Table
* -----------------
* Evaluate and parse _PRT, if exists.
*/
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_SUCCESS(status))
result = acpi_pci_irq_add_prt(device->handle, root->segment,
root->secondary.start);
/*
* Scan and bind all _ADR-Based Devices
*/
......@@ -635,6 +635,8 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
mutex_lock(&acpi_pci_root_lock);
list_del(&root->node);
mutex_unlock(&acpi_pci_root_lock);
acpi_pci_irq_del_prt(root->segment, root->secondary.start);
end:
kfree(root);
return result;
......
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