@@ -1981,7 +1981,7 @@ sba_connect_bus(struct pci_bus *bus)
if (PCI_CONTROLLER(bus)->iommu)
return;
- handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
+ handle = acpi_device_handle(ACPI_COMPANION(bus->bridge));
if (!handle)
return;
@@ -65,7 +65,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
#define pci_legacy_write platform_pci_legacy_write
struct pci_controller {
- struct acpi_device *companion;
void *iommu;
int segment;
int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */
@@ -301,28 +301,12 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
}
info->controller.segment = root->segment;
- info->controller.companion = device;
info->controller.node = acpi_get_node(device->handle);
INIT_LIST_HEAD(&info->io_resources);
return acpi_pci_root_create(root, &pci_acpi_root_ops,
&info->common, &info->controller);
}
-int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
-{
- /*
- * We pass NULL as parent to pci_create_root_bus(), so if it is not NULL
- * here, pci_create_root_bus() has been called by someone else and
- * sysdata is likely to be different from what we expect. Let it go in
- * that case.
- */
- if (!bridge->dev.parent) {
- struct pci_controller *controller = bridge->bus->sysdata;
- ACPI_COMPANION_SET(&bridge->dev, controller->companion);
- }
- return 0;
-}
-
void pcibios_fixup_device_resources(struct pci_dev *dev)
{
int idx;
@@ -132,7 +132,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
struct acpi_resource_vendor_typed *vendor;
- handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
+ handle = acpi_device_handle(ACPI_COMPANION(bus->bridge));
status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
&sn_uuid, &buffer);
if (ACPI_FAILURE(status)) {
@@ -360,7 +360,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info,
acpi_status status;
struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- rootbus_handle = acpi_device_handle(PCI_CONTROLLER(dev)->companion);
+ rootbus_handle = acpi_device_handle(ACPI_COMPANION(dev->bus->bridge));
status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
&segment);
if (ACPI_SUCCESS(status)) {
@@ -14,9 +14,6 @@
struct pci_sysdata {
int domain; /* PCI domain */
int node; /* NUMA node */
-#ifdef CONFIG_ACPI
- struct acpi_device *companion; /* ACPI companion device */
-#endif
#ifdef CONFIG_X86_64
void *iommu; /* IOMMU private data */
#endif
@@ -333,7 +333,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
struct pci_sysdata sd = {
.domain = domain,
.node = node,
- .companion = root->device
};
memcpy(bus->sysdata, &sd, sizeof(sd));
@@ -348,7 +347,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
else {
info->sd.domain = domain;
info->sd.node = node;
- info->sd.companion = root->device;
bus = acpi_pci_root_create(root, &acpi_pci_root_ops,
&info->common, &info->sd);
}
@@ -1153,16 +1153,6 @@ void __init pcibios_irq_init(void)
int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
{
- /*
- * We pass NULL as parent to pci_create_root_bus(), so if it is not NULL
- * here, pci_create_root_bus() has been called by someone else and
- * sysdata is likely to be different from what we expect. Let it go in
- * that case.
- */
- if (!bridge->dev.parent) {
- struct pci_sysdata *sd = bridge->bus->sysdata;
- ACPI_COMPANION_SET(&bridge->dev, sd->companion);
- }
bridge->map_irq = pci_map_irq;
return 0;
}
Since PCI core code is setting ACPI companion device for us now, platform specific ACPI companion device setting turns out to be dead now. Therefore we can get rid of it, including related companion reference from PCI sysdata structure. Signed-off-by: Tomasz Nowicki <tn@semihalf.com> --- arch/ia64/hp/common/sba_iommu.c | 2 +- arch/ia64/include/asm/pci.h | 1 - arch/ia64/pci/pci.c | 16 ---------------- arch/ia64/sn/kernel/io_acpi_init.c | 4 ++-- arch/x86/include/asm/pci.h | 3 --- arch/x86/pci/acpi.c | 2 -- arch/x86/pci/irq.c | 10 ---------- 7 files changed, 3 insertions(+), 35 deletions(-)