X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Facpi%2Fpci_root.c;h=4c313eab6313d94ff6e345555fa1eb53e24bedd0;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=7e6b8e3b2ed418e15af1c0cad4eabb6b01e02031;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 7e6b8e3b2..4c313eab6 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -35,33 +35,32 @@ #include #include - #define _COMPONENT ACPI_PCI_COMPONENT -ACPI_MODULE_NAME ("pci_root") - +ACPI_MODULE_NAME("pci_root") #define ACPI_PCI_ROOT_CLASS "pci_bridge" #define ACPI_PCI_ROOT_HID "PNP0A03" #define ACPI_PCI_ROOT_DRIVER_NAME "ACPI PCI Root Bridge Driver" #define ACPI_PCI_ROOT_DEVICE_NAME "PCI Root Bridge" - -static int acpi_pci_root_add (struct acpi_device *device); -static int acpi_pci_root_remove (struct acpi_device *device, int type); +static int acpi_pci_root_add(struct acpi_device *device); +static int acpi_pci_root_remove(struct acpi_device *device, int type); +static int acpi_pci_root_start(struct acpi_device *device); static struct acpi_driver acpi_pci_root_driver = { - .name = ACPI_PCI_ROOT_DRIVER_NAME, - .class = ACPI_PCI_ROOT_CLASS, - .ids = ACPI_PCI_ROOT_HID, - .ops = { - .add = acpi_pci_root_add, - .remove = acpi_pci_root_remove, - }, + .name = ACPI_PCI_ROOT_DRIVER_NAME, + .class = ACPI_PCI_ROOT_CLASS, + .ids = ACPI_PCI_ROOT_HID, + .ops = { + .add = acpi_pci_root_add, + .remove = acpi_pci_root_remove, + .start = acpi_pci_root_start, + }, }; struct acpi_pci_root { - struct list_head node; - acpi_handle handle; - struct acpi_pci_id id; - struct pci_bus *bus; + struct list_head node; + acpi_handle handle; + struct acpi_pci_id id; + struct pci_bus *bus; }; static LIST_HEAD(acpi_pci_roots); @@ -90,6 +89,7 @@ int acpi_pci_register_driver(struct acpi_pci_driver *driver) return n; } + EXPORT_SYMBOL(acpi_pci_register_driver); void acpi_pci_unregister_driver(struct acpi_pci_driver *driver) @@ -113,34 +113,36 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver) driver->remove(root->handle); } } + EXPORT_SYMBOL(acpi_pci_unregister_driver); static acpi_status -get_root_bridge_busnr_callback (struct acpi_resource *resource, void *data) +get_root_bridge_busnr_callback(struct acpi_resource *resource, void *data) { int *busnr = (int *)data; struct acpi_resource_address64 address; - if (resource->id != ACPI_RSTYPE_ADDRESS16 && - resource->id != ACPI_RSTYPE_ADDRESS32 && - resource->id != ACPI_RSTYPE_ADDRESS64) + if (resource->type != ACPI_RESOURCE_TYPE_ADDRESS16 && + resource->type != ACPI_RESOURCE_TYPE_ADDRESS32 && + resource->type != ACPI_RESOURCE_TYPE_ADDRESS64) return AE_OK; acpi_resource_to_address64(resource, &address); - if ((address.address_length > 0) && - (address.resource_type == ACPI_BUS_NUMBER_RANGE)) - *busnr = address.min_address_range; + if ((address.address_length > 0) && + (address.resource_type == ACPI_BUS_NUMBER_RANGE)) + *busnr = address.minimum; return AE_OK; } -static acpi_status -try_get_root_bridge_busnr(acpi_handle handle, int *busnum) +static acpi_status try_get_root_bridge_busnr(acpi_handle handle, int *busnum) { acpi_status status; *busnum = -1; - status = acpi_walk_resources(handle, METHOD_NAME__CRS, get_root_bridge_busnr_callback, busnum); + status = + acpi_walk_resources(handle, METHOD_NAME__CRS, + get_root_bridge_busnr_callback, busnum); if (ACPI_FAILURE(status)) return status; /* Check if we really get a bus number from _CRS */ @@ -149,16 +151,14 @@ try_get_root_bridge_busnr(acpi_handle handle, int *busnum) return AE_OK; } -static int -acpi_pci_root_add ( - struct acpi_device *device) +static int acpi_pci_root_add(struct acpi_device *device) { - int result = 0; - struct acpi_pci_root *root = NULL; - struct acpi_pci_root *tmp; - acpi_status status = AE_OK; - unsigned long value = 0; - acpi_handle handle = NULL; + int result = 0; + struct acpi_pci_root *root = NULL; + struct acpi_pci_root *tmp; + acpi_status status = AE_OK; + unsigned long value = 0; + acpi_handle handle = NULL; ACPI_FUNCTION_TRACE("acpi_pci_root_add"); @@ -169,6 +169,7 @@ acpi_pci_root_add ( if (!root) return_VALUE(-ENOMEM); memset(root, 0, sizeof(struct acpi_pci_root)); + INIT_LIST_HEAD(&root->node); root->handle = device->handle; strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME); @@ -185,15 +186,15 @@ acpi_pci_root_add ( * ------- * Obtained via _SEG, if exists, otherwise assumed to be zero (0). */ - status = acpi_evaluate_integer(root->handle, METHOD_NAME__SEG, NULL, - &value); + status = acpi_evaluate_integer(root->handle, METHOD_NAME__SEG, NULL, + &value); switch (status) { case AE_OK: root->id.segment = (u16) value; break; case AE_NOT_FOUND: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Assuming segment 0 (no _SEG)\n")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Assuming segment 0 (no _SEG)\n")); root->id.segment = 0; break; default: @@ -207,8 +208,8 @@ acpi_pci_root_add ( * --- * Obtained via _BBN, if exists, otherwise assumed to be zero (0). */ - status = acpi_evaluate_integer(root->handle, METHOD_NAME__BBN, NULL, - &value); + status = acpi_evaluate_integer(root->handle, METHOD_NAME__BBN, NULL, + &value); switch (status) { case AE_OK: root->id.bus = (u16) value; @@ -226,18 +227,19 @@ acpi_pci_root_add ( /* Some systems have wrong _BBN */ list_for_each_entry(tmp, &acpi_pci_roots, node) { if ((tmp->id.segment == root->id.segment) - && (tmp->id.bus == root->id.bus)) { + && (tmp->id.bus == root->id.bus)) { int bus = 0; acpi_status status; - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Wrong _BBN value, please reboot and using option 'pci=noacpi'\n")); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Wrong _BBN value, please reboot and using option 'pci=noacpi'\n")); status = try_get_root_bridge_busnr(root->handle, &bus); if (ACPI_FAILURE(status)) break; if (bus != root->id.bus) { - printk(KERN_INFO PREFIX "PCI _CRS %d overrides _BBN 0\n", bus); + printk(KERN_INFO PREFIX + "PCI _CRS %d overrides _BBN 0\n", bus); root->id.bus = bus; } break; @@ -255,12 +257,12 @@ acpi_pci_root_add ( * TBD: Need PCI interface for enumeration/configuration of roots. */ - /* TBD: Locking */ - list_add_tail(&root->node, &acpi_pci_roots); + /* TBD: Locking */ + list_add_tail(&root->node, &acpi_pci_roots); - printk(KERN_INFO PREFIX "%s [%s] (%04x:%02x)\n", - acpi_device_name(device), acpi_device_bid(device), - root->id.segment, root->id.bus); + printk(KERN_INFO PREFIX "%s [%s] (%04x:%02x)\n", + acpi_device_name(device), acpi_device_bid(device), + root->id.segment, root->id.bus); /* * Scan the Root Bridge @@ -271,9 +273,9 @@ acpi_pci_root_add ( */ root->bus = pci_acpi_scan_root(device, root->id.segment, root->id.bus); if (!root->bus) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Bus %04x:%02x not present in PCI namespace\n", - root->id.segment, root->id.bus)); + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Bus %04x:%02x not present in PCI namespace\n", + root->id.segment, root->id.bus)); result = -ENODEV; goto end; } @@ -295,37 +297,50 @@ acpi_pci_root_add ( status = acpi_get_handle(root->handle, METHOD_NAME__PRT, &handle); if (ACPI_SUCCESS(status)) result = acpi_pci_irq_add_prt(root->handle, root->id.segment, - root->id.bus); + root->id.bus); -end: - if (result) + end: + if (result) { + if (!list_empty(&root->node)) + list_del(&root->node); kfree(root); + } return_VALUE(result); } +static int acpi_pci_root_start(struct acpi_device *device) +{ + struct acpi_pci_root *root; -static int -acpi_pci_root_remove ( - struct acpi_device *device, - int type) + ACPI_FUNCTION_TRACE("acpi_pci_root_start"); + + list_for_each_entry(root, &acpi_pci_roots, node) { + if (root->handle == device->handle) { + pci_bus_add_devices(root->bus); + return_VALUE(0); + } + } + return_VALUE(-ENODEV); +} + +static int acpi_pci_root_remove(struct acpi_device *device, int type) { - struct acpi_pci_root *root = NULL; + struct acpi_pci_root *root = NULL; ACPI_FUNCTION_TRACE("acpi_pci_root_remove"); if (!device || !acpi_driver_data(device)) return_VALUE(-EINVAL); - root = (struct acpi_pci_root *) acpi_driver_data(device); + root = (struct acpi_pci_root *)acpi_driver_data(device); kfree(root); return_VALUE(0); } - -static int __init acpi_pci_root_init (void) +static int __init acpi_pci_root_init(void) { ACPI_FUNCTION_TRACE("acpi_pci_root_init"); @@ -333,8 +348,8 @@ static int __init acpi_pci_root_init (void) return_VALUE(0); /* DEBUG: - acpi_dbg_layer = ACPI_PCI_COMPONENT; - acpi_dbg_level = 0xFFFFFFFF; + acpi_dbg_layer = ACPI_PCI_COMPONENT; + acpi_dbg_level = 0xFFFFFFFF; */ if (acpi_bus_register_driver(&acpi_pci_root_driver) < 0) @@ -344,4 +359,3 @@ static int __init acpi_pci_root_init (void) } subsys_initcall(acpi_pci_root_init); -