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ACPI: pci_root: pass acpi_pci_root to arch-specific scan

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The acpi_pci_root structure contains all the individual items (acpi_device,
domain, bus number) we pass to pci_acpi_scan_root(), so just pass the
single acpi_pci_root pointer directly.

This will make it easier to add _CBA support later.  For _CBA, we need the
entire downstream bus range, not just the base bus number.  We have that in
the acpi_pci_root structure, so passing the pointer makes it available to
the arch-specific code.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2010-03-11 12:20:11 -07:00 committed by Len Brown
parent 6ad95513d6
commit 57283776b2
4 changed files with 10 additions and 5 deletions
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5
arch/ia64/pci/pci.c
View file

@ -335,8 +335,11 @@ pcibios_setup_root_windows(struct pci_bus *bus, struct pci_controller *ctrl)
}
struct pci_bus * __devinit
pci_acpi_scan_root(struct acpi_device *device, int domain, int bus)
pci_acpi_scan_root(struct acpi_pci_root *root)
{
struct acpi_device *device = root->device;
int domain = root->segment;
int bus = root->secondary.start;
struct pci_controller *controller;
unsigned int windows = 0;
struct pci_bus *pbus;

5
arch/x86/pci/acpi.c
View file

@ -229,8 +229,11 @@ res_alloc_fail:
return;
}
struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_device *device, int domain, int busnum)
struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
{
struct acpi_device *device = root->device;
int domain = root->segment;
int busnum = root->secondary.start;
struct pci_bus *bus;
struct pci_sysdata *sd;
int node;

2
drivers/acpi/pci_root.c
View file

@ -498,7 +498,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
* PCI namespace does not get created until this call is made (and
* thus the root bridge's pci_dev does not exist).
*/
root->bus = pci_acpi_scan_root(device, segment, root->secondary.start);
root->bus = pci_acpi_scan_root(root);
if (!root->bus) {
printk(KERN_ERR PREFIX
"Bus %04x:%02x not present in PCI namespace\n",

3
include/acpi/acpi_drivers.h
View file

@ -104,8 +104,7 @@ int acpi_pci_bind_root(struct acpi_device *device);
/* Arch-defined function to add a bus to the system */
struct pci_bus *pci_acpi_scan_root(struct acpi_device *device, int domain,
int bus);
struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root);
void pci_acpi_crs_quirks(void);
/* --------------------------------------------------------------------------