#include <acpi/acpi_drivers.h>
#define _COMPONENT ACPI_PCI_COMPONENT
-ACPI_MODULE_NAME("pci_link")
+ACPI_MODULE_NAME("pci_link");
#define ACPI_PCI_LINK_CLASS "pci_irq_routing"
-#define ACPI_PCI_LINK_HID "PNP0C0F"
-#define ACPI_PCI_LINK_DRIVER_NAME "ACPI PCI Interrupt Link Driver"
#define ACPI_PCI_LINK_DEVICE_NAME "PCI Interrupt Link"
#define ACPI_PCI_LINK_FILE_INFO "info"
#define ACPI_PCI_LINK_FILE_STATUS "state"
static int acpi_pci_link_add(struct acpi_device *device);
static int acpi_pci_link_remove(struct acpi_device *device, int type);
+static struct acpi_device_id link_device_ids[] = {
+ {"PNP0C0F", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, link_device_ids);
+
static struct acpi_driver acpi_pci_link_driver = {
- .name = ACPI_PCI_LINK_DRIVER_NAME,
+ .name = "pci_link",
.class = ACPI_PCI_LINK_CLASS,
- .ids = ACPI_PCI_LINK_HID,
+ .ids = link_device_ids,
.ops = {
.add = acpi_pci_link_add,
.remove = acpi_pci_link_remove,
struct acpi_pci_link {
struct list_head node;
struct acpi_device *device;
- acpi_handle handle;
struct acpi_pci_link_irq irq;
int refcnt;
};
static acpi_status
acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
{
- struct acpi_pci_link *link = (struct acpi_pci_link *)context;
+ struct acpi_pci_link *link = context;
u32 i = 0;
if (!link)
return -EINVAL;
- status = acpi_walk_resources(link->handle, METHOD_NAME__PRS,
+ status = acpi_walk_resources(link->device->handle, METHOD_NAME__PRS,
acpi_pci_link_check_possible, link);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRS"));
acpi_status status = AE_OK;
int irq = 0;
-
- if (!link || !link->handle)
+ if (!link)
return -EINVAL;
link->irq.active = 0;
* Query and parse _CRS to get the current IRQ assignment.
*/
- status = acpi_walk_resources(link->handle, METHOD_NAME__CRS,
+ status = acpi_walk_resources(link->device->handle, METHOD_NAME__CRS,
acpi_pci_link_check_current, &irq);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _CRS"));
if (!link || !irq)
return -EINVAL;
- resource = kmalloc(sizeof(*resource) + 1, GFP_ATOMIC);
+ resource = kzalloc(sizeof(*resource) + 1, irqs_disabled() ? GFP_ATOMIC: GFP_KERNEL);
if (!resource)
return -ENOMEM;
- memset(resource, 0, sizeof(*resource) + 1);
buffer.length = sizeof(*resource) + 1;
buffer.pointer = resource;
resource->end.type = ACPI_RESOURCE_TYPE_END_TAG;
/* Attempt to set the resource */
- status = acpi_set_current_resources(link->handle, &buffer);
+ status = acpi_set_current_resources(link->device->handle, &buffer);
/* check for total failure */
if (ACPI_FAILURE(status)) {
}
}
/* Add a penalty for the SCI */
- acpi_irq_penalty[acpi_fadt.sci_int] += PIRQ_PENALTY_PCI_USING;
+ acpi_irq_penalty[acpi_gbl_FADT.sci_interrupt] += PIRQ_PENALTY_PCI_USING;
return 0;
}
return -1;
}
- link = (struct acpi_pci_link *)acpi_driver_data(device);
+ link = acpi_driver_data(device);
if (!link) {
printk(KERN_ERR PREFIX "Invalid link context\n");
return -1;
return -1;
}
- link = (struct acpi_pci_link *)acpi_driver_data(device);
+ link = acpi_driver_data(device);
if (!link) {
printk(KERN_ERR PREFIX "Invalid link context\n");
return -1;
acpi_device_bid(link->device)));
if (link->refcnt == 0) {
- acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+ acpi_ut_evaluate_object(link->device->handle, "_DIS", 0, NULL);
}
mutex_unlock(&acpi_link_lock);
return (link->irq.active);
if (!device)
return -EINVAL;
- link = kmalloc(sizeof(struct acpi_pci_link), GFP_KERNEL);
+ link = kzalloc(sizeof(struct acpi_pci_link), GFP_KERNEL);
if (!link)
return -ENOMEM;
- memset(link, 0, sizeof(struct acpi_pci_link));
link->device = device;
- link->handle = device->handle;
strcpy(acpi_device_name(device), ACPI_PCI_LINK_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS);
acpi_driver_data(device) = link;
/* query and set link->irq.active */
acpi_pci_link_get_current(link);
- printk(PREFIX "%s [%s] (IRQs", acpi_device_name(device),
+ printk(KERN_INFO PREFIX "%s [%s] (IRQs", acpi_device_name(device),
acpi_device_bid(device));
for (i = 0; i < link->irq.possible_count; i++) {
if (link->irq.active == link->irq.possible[i]) {
end:
/* disable all links -- to be activated on use */
- acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL);
+ acpi_ut_evaluate_object(device->handle, "_DIS", 0, NULL);
mutex_unlock(&acpi_link_lock);
if (result)
return 0;
}
-/*
- * FIXME: this is a workaround to avoid nasty warning. It will be removed
- * after every device calls pci_disable_device in .resume.
- */
-int acpi_in_resume;
static int irqrouter_resume(struct sys_device *dev)
{
struct list_head *node = NULL;
/* Make sure SCI is enabled again (Apple firmware bug?) */
- acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1, ACPI_MTX_DO_NOT_LOCK);
+ acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
- acpi_in_resume = 1;
list_for_each(node, &acpi_link.entries) {
link = list_entry(node, struct acpi_pci_link, node);
if (!link) {
}
acpi_pci_link_resume(link);
}
- acpi_in_resume = 0;
return 0;
}
if (!device || !acpi_driver_data(device))
return -EINVAL;
- link = (struct acpi_pci_link *)acpi_driver_data(device);
+ link = acpi_driver_data(device);
mutex_lock(&acpi_link_lock);
list_del(&link->node);