acpi_handle tmp;
acpi_status status = AE_OK;
unsigned long adr, sun;
- int device, function;
- static int num_slots = 0; /* XXX if we support I/O node hotplug... */
+ int device, function, retval;
status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
device = (adr >> 16) & 0xffff;
function = adr & 0xffff;
- newfunc = kmalloc(sizeof(struct acpiphp_func), GFP_KERNEL);
+ newfunc = kzalloc(sizeof(struct acpiphp_func), GFP_KERNEL);
if (!newfunc)
return AE_NO_MEMORY;
- memset(newfunc, 0, sizeof(struct acpiphp_func));
INIT_LIST_HEAD(&newfunc->sibling);
newfunc->handle = handle;
}
if (!slot) {
- slot = kmalloc(sizeof(struct acpiphp_slot), GFP_KERNEL);
+ slot = kzalloc(sizeof(struct acpiphp_slot), GFP_KERNEL);
if (!slot) {
kfree(newfunc);
return AE_NO_MEMORY;
}
- memset(slot, 0, sizeof(struct acpiphp_slot));
slot->bridge = bridge;
- slot->id = num_slots++;
slot->device = device;
slot->sun = sun;
INIT_LIST_HEAD(&slot->funcs);
dbg("found ACPI PCI Hotplug slot %d at PCI %04x:%02x:%02x\n",
slot->sun, pci_domain_nr(bridge->pci_bus),
bridge->pci_bus->number, slot->device);
+ retval = acpiphp_register_hotplug_slot(slot);
+ if (retval) {
+ warn("acpiphp_register_hotplug_slot failed(err code = 0x%x)\n", retval);
+ goto err_exit;
+ }
}
newfunc->slot = slot;
status = AE_OK;
return status;
+
+ err_exit:
+ bridge->nr_slots--;
+ bridge->slots = slot->next;
+ kfree(slot);
+ kfree(newfunc);
+
+ return AE_OK;
}
static void decode_hpp(struct acpiphp_bridge *bridge)
{
acpi_status status;
- struct acpi_buffer buffer = { .length = ACPI_ALLOCATE_BUFFER,
- .pointer = NULL};
- union acpi_object *package;
- int i;
-
- /* default numbers */
- bridge->hpp.cache_line_size = 0x10;
- bridge->hpp.latency_timer = 0x40;
- bridge->hpp.enable_SERR = 0;
- bridge->hpp.enable_PERR = 0;
-
- status = acpi_evaluate_object(bridge->handle, "_HPP", NULL, &buffer);
+ status = acpi_get_hp_params_from_firmware(bridge->pci_dev, &bridge->hpp);
if (ACPI_FAILURE(status)) {
- dbg("_HPP evaluation failed\n");
- return;
- }
-
- package = (union acpi_object *) buffer.pointer;
-
- if (!package || package->type != ACPI_TYPE_PACKAGE ||
- package->package.count != 4 || !package->package.elements) {
- err("invalid _HPP object; ignoring\n");
- goto err_exit;
+ /* use default numbers */
+ bridge->hpp.cache_line_size = 0x10;
+ bridge->hpp.latency_timer = 0x40;
+ bridge->hpp.enable_serr = 0;
+ bridge->hpp.enable_perr = 0;
}
-
- for (i = 0; i < 4; i++) {
- if (package->package.elements[i].type != ACPI_TYPE_INTEGER) {
- err("invalid _HPP parameter type; ignoring\n");
- goto err_exit;
- }
- }
-
- bridge->hpp.cache_line_size = package->package.elements[0].integer.value;
- bridge->hpp.latency_timer = package->package.elements[1].integer.value;
- bridge->hpp.enable_SERR = package->package.elements[2].integer.value;
- bridge->hpp.enable_PERR = package->package.elements[3].integer.value;
-
- dbg("_HPP parameter = (%02x, %02x, %02x, %02x)\n",
- bridge->hpp.cache_line_size,
- bridge->hpp.latency_timer,
- bridge->hpp.enable_SERR,
- bridge->hpp.enable_PERR);
-
- bridge->flags |= BRIDGE_HAS_HPP;
-
- err_exit:
- kfree(buffer.pointer);
}
+
/* initialize miscellaneous stuff for both root and PCI-to-PCI bridge */
static void init_bridge_misc(struct acpiphp_bridge *bridge)
{
/* decode ACPI 2.0 _HPP (hot plug parameters) */
decode_hpp(bridge);
+ /* must be added to the list prior to calling register_slot */
+ list_add(&bridge->list, &bridge_list);
+
/* register all slot objects under this bridge */
status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1,
register_slot, bridge, NULL);
+ if (ACPI_FAILURE(status)) {
+ list_del(&bridge->list);
+ return;
+ }
/* install notify handler */
if (bridge->type != BRIDGE_TYPE_HOST) {
err("failed to register interrupt notify handler\n");
}
}
-
- list_add(&bridge->list, &bridge_list);
}
{
struct acpiphp_bridge *bridge;
- bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
+ bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
if (bridge == NULL)
return;
- memset(bridge, 0, sizeof(struct acpiphp_bridge));
-
bridge->type = BRIDGE_TYPE_HOST;
bridge->handle = handle;
{
struct acpiphp_bridge *bridge;
- bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
+ bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
if (bridge == NULL) {
err("out of memory\n");
return;
}
- memset(bridge, 0, sizeof(struct acpiphp_bridge));
-
bridge->type = BRIDGE_TYPE_P2P;
bridge->handle = handle;
add_p2p_bridge(handle, dev);
}
+ /* search P2P bridges under this p2p bridge */
+ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
+ find_p2p_bridge, dev->subordinate, NULL);
+ if (ACPI_FAILURE(status))
+ warn("find_p2p_bridge faied (error code = 0x%x)\n", status);
+
out:
pci_dev_put(dev);
return AE_OK;
list_del(list);
kfree(func);
}
+ acpiphp_unregister_hotplug_slot(slot);
+ list_del(&slot->funcs);
kfree(slot);
slot = next;
}
} else {
/* clean-up p2p bridges under this host bridge */
acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
- (u32)1, cleanup_p2p_bridge, NULL, NULL);
+ ACPI_UINT32_MAX, cleanup_p2p_bridge,
+ NULL, NULL);
}
}
acpiphp_sanitize_bus(bus);
pci_enable_bridges(bus);
pci_bus_add_devices(bus);
- acpiphp_set_hpp_values(DEVICE_ACPI_HANDLE(&bus->self->dev), bus);
- acpiphp_configure_ioapics(DEVICE_ACPI_HANDLE(&bus->self->dev));
+ acpiphp_set_hpp_values(slot->bridge->handle, bus);
+ acpiphp_configure_ioapics(slot->bridge->handle);
/* associate pci_dev to our representation */
list_for_each (l, &slot->funcs) {
pci_write_config_byte(dev, PCI_LATENCY_TIMER,
bridge->hpp.latency_timer);
pci_read_config_word(dev, PCI_COMMAND, &pci_cmd);
- if (bridge->hpp.enable_SERR)
+ if (bridge->hpp.enable_serr)
pci_cmd |= PCI_COMMAND_SERR;
else
pci_cmd &= ~PCI_COMMAND_SERR;
- if (bridge->hpp.enable_PERR)
+ if (bridge->hpp.enable_perr)
pci_cmd |= PCI_COMMAND_PARITY;
else
pci_cmd &= ~PCI_COMMAND_PARITY;
pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER,
bridge->hpp.latency_timer);
pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &pci_bctl);
- if (bridge->hpp.enable_SERR)
+ if (bridge->hpp.enable_serr)
pci_bctl |= PCI_BRIDGE_CTL_SERR;
else
pci_bctl &= ~PCI_BRIDGE_CTL_SERR;
- if (bridge->hpp.enable_PERR)
+ if (bridge->hpp.enable_perr)
pci_bctl |= PCI_BRIDGE_CTL_PARITY;
else
pci_bctl &= ~PCI_BRIDGE_CTL_PARITY;
memset(&bridge, 0, sizeof(bridge));
bridge.handle = handle;
+ bridge.pci_dev = bus->self;
decode_hpp(&bridge);
list_for_each_entry(dev, &bus->devices, bus_list)
program_hpp(dev, &bridge);
}
}
-static int is_root_bridge(acpi_handle handle)
-{
- acpi_status status;
- struct acpi_device_info *info;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- int i;
-
- status = acpi_get_object_info(handle, &buffer);
- if (ACPI_SUCCESS(status)) {
- info = buffer.pointer;
- if ((info->valid & ACPI_VALID_HID) &&
- !strcmp(PCI_ROOT_HID_STRING,
- info->hardware_id.value)) {
- acpi_os_free(buffer.pointer);
- return 1;
- }
- if (info->valid & ACPI_VALID_CID) {
- for (i=0; i < info->compatibility_id.count; i++) {
- if (!strcmp(PCI_ROOT_HID_STRING,
- info->compatibility_id.id[i].value)) {
- acpi_os_free(buffer.pointer);
- return 1;
- }
- }
- }
- }
- return 0;
-}
static acpi_status
find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
{
int *count = (int *)context;
- if (is_root_bridge(handle)) {
+ if (acpi_root_bridge(handle)) {
acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
handle_hotplug_event_bridge, NULL);
(*count)++;
}
#endif
-/* search matching slot from id */
-struct acpiphp_slot *get_slot_from_id(int id)
-{
- struct list_head *node;
- struct acpiphp_bridge *bridge;
- struct acpiphp_slot *slot;
-
- list_for_each (node, &bridge_list) {
- bridge = (struct acpiphp_bridge *)node;
- for (slot = bridge->slots; slot; slot = slot->next)
- if (slot->id == id)
- return slot;
- }
-
- /* should never happen! */
- err("%s: no object for id %d\n", __FUNCTION__, id);
- WARN_ON(1);
- return NULL;
-}
-
/**
* acpiphp_enable_slot - power on slot
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff