Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 63f1789e authored by Jiang Liu's avatar Jiang Liu Committed by Rafael J. Wysocki
Browse files

x86/PCI/ACPI: Ignore resources consumed by host bridge itself 



When parsing resources for PCI host bridge, we should ignore resources
consumed by host bridge itself and only report window resources available
to child PCI busses.

Fixes: 593669c2 (x86/PCI/ACPI: Use common ACPI resource interfaces ...)
Signed-off-by: default avatarJiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent f1651a24

arch/x86/pci/acpi.c

+8 −3
Original line number Diff line number Diff line
@@ -331,7 +331,7 @@ static void probe_pci_root_info(struct pci_root_info *info, 
				struct list_head *list)

{

	int ret;

	struct resource_entry *entry;

	struct resource_entry *entry, *tmp;



	sprintf(info->name, "PCI Bus %04x:%02x", domain, busnum);

	info->bridge = device;
@@ -345,9 +345,14 @@ static void probe_pci_root_info(struct pci_root_info *info, 
		dev_dbg(&device->dev,

			"no IO and memory resources present in _CRS\n");

	else

		resource_list_for_each_entry(entry, list)

		resource_list_for_each_entry_safe(entry, tmp, list) {

			if ((entry->res->flags & IORESOURCE_WINDOW) == 0 ||

			    (entry->res->flags & IORESOURCE_DISABLED))

				resource_list_destroy_entry(entry);

			else

				entry->res->name = info->name;

		}

}



struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)

{