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-rw-r--r--drivers/acpi/Kconfig4
-rw-r--r--drivers/acpi/container.c2
-rw-r--r--drivers/acpi/motherboard.c2
-rw-r--r--drivers/acpi/osl.c6
-rw-r--r--drivers/acpi/pci_bind.c27
-rw-r--r--drivers/acpi/pci_irq.c3
-rw-r--r--drivers/acpi/pci_link.c43
-rw-r--r--drivers/acpi/pci_root.c24
-rw-r--r--drivers/acpi/processor_core.c2
-rw-r--r--drivers/acpi/processor_idle.c2
-rw-r--r--drivers/acpi/scan.c130
-rw-r--r--drivers/acpi/sleep/poweroff.c34
12 files changed, 196 insertions, 83 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index eded2e81cc1..66c60982ba4 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -55,8 +55,8 @@ if ACPI_INTERPRETER
config ACPI_SLEEP
bool "Sleep States (EXPERIMENTAL)"
- depends on X86
- depends on EXPERIMENTAL
+ depends on X86 && (!SMP || SUSPEND_SMP)
+ depends on EXPERIMENTAL && PM
default y
---help---
This option adds support for ACPI suspend states.
diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c
index 5a0adbf8bc0..97013ddfa20 100644
--- a/drivers/acpi/container.c
+++ b/drivers/acpi/container.c
@@ -153,7 +153,7 @@ container_device_add(struct acpi_device **device, acpi_handle handle)
return_VALUE(-ENODEV);
}
- result = acpi_bus_scan(*device);
+ result = acpi_bus_start(*device);
return_VALUE(result);
}
diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c
index 61ea70742d4..2934475d67d 100644
--- a/drivers/acpi/motherboard.c
+++ b/drivers/acpi/motherboard.c
@@ -43,7 +43,7 @@ ACPI_MODULE_NAME ("acpi_motherboard")
*/
#define IS_RESERVED_ADDR(base, len) \
(((len) > 0) && ((base) > 0) && ((base) + (len) < IO_SPACE_LIMIT) \
- && ((base) + (len) > PCIBIOS_MIN_IO))
+ && ((base) + (len) > 0x1000))
/*
* Clearing the flag (IORESOURCE_BUSY) allows drivers to use
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 56e7cedba91..f3a807c342c 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -145,10 +145,14 @@ acpi_os_vprintf(const char *fmt, va_list args)
#endif
}
+extern int acpi_in_resume;
void *
acpi_os_allocate(acpi_size size)
{
- return kmalloc(size, GFP_KERNEL);
+ if (acpi_in_resume)
+ return kmalloc(size, GFP_ATOMIC);
+ else
+ return kmalloc(size, GFP_KERNEL);
}
void
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 5d19b39e9e2..5148f3c10b5 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -61,15 +61,14 @@ acpi_pci_data_handler (
/**
- * acpi_os_get_pci_id
+ * acpi_get_pci_id
* ------------------
* This function is used by the ACPI Interpreter (a.k.a. Core Subsystem)
* to resolve PCI information for ACPI-PCI devices defined in the namespace.
* This typically occurs when resolving PCI operation region information.
*/
-#ifdef ACPI_FUTURE_USAGE
acpi_status
-acpi_os_get_pci_id (
+acpi_get_pci_id (
acpi_handle handle,
struct acpi_pci_id *id)
{
@@ -78,7 +77,7 @@ acpi_os_get_pci_id (
struct acpi_device *device = NULL;
struct acpi_pci_data *data = NULL;
- ACPI_FUNCTION_TRACE("acpi_os_get_pci_id");
+ ACPI_FUNCTION_TRACE("acpi_get_pci_id");
if (!id)
return_ACPI_STATUS(AE_BAD_PARAMETER);
@@ -92,7 +91,7 @@ acpi_os_get_pci_id (
}
status = acpi_get_data(handle, acpi_pci_data_handler, (void**) &data);
- if (ACPI_FAILURE(status) || !data || !data->dev) {
+ if (ACPI_FAILURE(status) || !data) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
"Invalid ACPI-PCI context for device %s\n",
acpi_device_bid(device)));
@@ -115,7 +114,7 @@ acpi_os_get_pci_id (
return_ACPI_STATUS(AE_OK);
}
-#endif /* ACPI_FUTURE_USAGE */
+EXPORT_SYMBOL(acpi_get_pci_id);
int
@@ -129,6 +128,8 @@ acpi_pci_bind (
char *pathname = NULL;
struct acpi_buffer buffer = {0, NULL};
acpi_handle handle = NULL;
+ struct pci_dev *dev;
+ struct pci_bus *bus;
ACPI_FUNCTION_TRACE("acpi_pci_bind");
@@ -193,8 +194,20 @@ acpi_pci_bind (
* Locate matching device in PCI namespace. If it doesn't exist
* this typically means that the device isn't currently inserted
* (e.g. docking station, port replicator, etc.).
+ * We cannot simply search the global pci device list, since
+ * PCI devices are added to the global pci list when the root
+ * bridge start ops are run, which may not have happened yet.
*/
- data->dev = pci_find_slot(data->id.bus, PCI_DEVFN(data->id.device, data->id.function));
+ bus = pci_find_bus(data->id.segment, data->id.bus);
+ if (bus) {
+ list_for_each_entry(dev, &bus->devices, bus_list) {
+ if (dev->devfn == PCI_DEVFN(data->id.device,
+ data->id.function)) {
+ data->dev = dev;
+ break;
+ }
+ }
+ }
if (!data->dev) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Device %02x:%02x:%02x.%02x not present in PCI namespace\n",
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 7ed4b2ef265..c885300579e 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -466,8 +466,9 @@ acpi_pci_irq_enable (
printk(KERN_WARNING PREFIX "PCI Interrupt %s[%c]: no GSI",
pci_name(dev), ('A' + pin));
/* Interrupt Line values above 0xF are forbidden */
- if (dev->irq >= 0 && (dev->irq <= 0xF)) {
+ if (dev->irq > 0 && (dev->irq <= 0xF)) {
printk(" - using IRQ %d\n", dev->irq);
+ acpi_register_gsi(dev->irq, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW);
return_VALUE(0);
}
else {
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index a0df2f3606d..26aa3829f1d 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -786,14 +786,32 @@ end:
return_VALUE(result);
}
-static int irqrouter_suspend(struct sys_device *dev, pm_message_t state)
+static int
+acpi_pci_link_resume(
+ struct acpi_pci_link *link)
+{
+ ACPI_FUNCTION_TRACE("acpi_pci_link_resume");
+
+ if (link->refcnt && link->irq.active && link->irq.initialized)
+ return_VALUE(acpi_pci_link_set(link, link->irq.active));
+ else
+ return_VALUE(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;
struct acpi_pci_link *link = NULL;
- int ret = 0;
- ACPI_FUNCTION_TRACE("irqrouter_suspend");
+ ACPI_FUNCTION_TRACE("irqrouter_resume");
+ acpi_in_resume = 1;
list_for_each(node, &acpi_link.entries) {
link = list_entry(node, struct acpi_pci_link, node);
if (!link) {
@@ -801,21 +819,10 @@ static int irqrouter_suspend(struct sys_device *dev, pm_message_t state)
"Invalid link context\n"));
continue;
}
- if (link->irq.initialized && link->refcnt != 0
- /* We ignore legacy IDE device irq */
- && link->irq.active != 14 && link->irq.active !=15) {
- printk(KERN_WARNING PREFIX
- "%d drivers with interrupt %d neglected to call"
- " pci_disable_device at .suspend\n",
- link->refcnt,
- link->irq.active);
- printk(KERN_WARNING PREFIX
- "Fix the driver, or rmmod before suspend\n");
- link->refcnt = 0;
- ret = -EINVAL;
- }
+ acpi_pci_link_resume(link);
}
- return_VALUE(ret);
+ acpi_in_resume = 0;
+ return_VALUE(0);
}
@@ -930,7 +937,7 @@ __setup("acpi_irq_balance", acpi_irq_balance_set);
/* FIXME: we will remove this interface after all drivers call pci_disable_device */
static struct sysdev_class irqrouter_sysdev_class = {
set_kset_name("irqrouter"),
- .suspend = irqrouter_suspend,
+ .resume = irqrouter_resume,
};
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7e6b8e3b2ed..5d2f77fcd50 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -46,6 +46,7 @@ ACPI_MODULE_NAME ("pci_root")
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,
@@ -54,6 +55,7 @@ static struct acpi_driver acpi_pci_root_driver = {
.ops = {
.add = acpi_pci_root_add,
.remove = acpi_pci_root_remove,
+ .start = acpi_pci_root_start,
},
};
@@ -169,6 +171,7 @@ 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);
@@ -298,12 +301,31 @@ acpi_pci_root_add (
root->id.bus);
end:
- if (result)
+ 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;
+
+ 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 (
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index e421842888b..d56a439ac61 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -760,7 +760,7 @@ int acpi_processor_device_add(
return_VALUE(-ENODEV);
}
- acpi_bus_scan(*device);
+ acpi_bus_start(*device);
pr = acpi_driver_data(*device);
if (!pr)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 8f7836678b2..2c04740c654 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -178,7 +178,7 @@ static void acpi_processor_idle (void)
int sleep_ticks = 0;
u32 t1, t2 = 0;
- pr = processors[_smp_processor_id()];
+ pr = processors[raw_smp_processor_id()];
if (!pr)
return;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7c26fed0bdf..cbcda30c172 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -65,14 +65,14 @@ static ssize_t acpi_device_attr_show(struct kobject *kobj,
{
struct acpi_device *device = to_acpi_device(kobj);
struct acpi_device_attribute *attribute = to_handle_attr(attr);
- return attribute->show ? attribute->show(device, buf) : 0;
+ return attribute->show ? attribute->show(device, buf) : -EIO;
}
static ssize_t acpi_device_attr_store(struct kobject *kobj,
struct attribute *attr, const char *buf, size_t len)
{
struct acpi_device *device = to_acpi_device(kobj);
struct acpi_device_attribute *attribute = to_handle_attr(attr);
- return attribute->store ? attribute->store(device, buf, len) : len;
+ return attribute->store ? attribute->store(device, buf, len) : -EIO;
}
static struct sysfs_ops acpi_device_sysfs_ops = {
@@ -553,20 +553,29 @@ acpi_bus_driver_init (
* upon possible configuration and currently allocated resources.
*/
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver successfully bound to device\n"));
+ return_VALUE(0);
+}
+
+int
+acpi_start_single_object (
+ struct acpi_device *device)
+{
+ int result = 0;
+ struct acpi_driver *driver;
+
+ ACPI_FUNCTION_TRACE("acpi_start_single_object");
+
+ if (!(driver = device->driver))
+ return_VALUE(0);
+
if (driver->ops.start) {
result = driver->ops.start(device);
if (result && driver->ops.remove)
driver->ops.remove(device, ACPI_BUS_REMOVAL_NORMAL);
- return_VALUE(result);
}
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Driver successfully bound to device\n"));
-
- if (driver->ops.scan) {
- driver->ops.scan(device);
- }
-
- return_VALUE(0);
+ return_VALUE(result);
}
static int acpi_driver_attach(struct acpi_driver * drv)
@@ -586,6 +595,7 @@ static int acpi_driver_attach(struct acpi_driver * drv)
if (!acpi_bus_match(dev, drv)) {
if (!acpi_bus_driver_init(dev, drv)) {
+ acpi_start_single_object(dev);
atomic_inc(&drv->references);
count++;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n",
@@ -1009,8 +1019,8 @@ acpi_bus_remove (
}
-int
-acpi_bus_add (
+static int
+acpi_add_single_object (
struct acpi_device **child,
struct acpi_device *parent,
acpi_handle handle,
@@ -1019,7 +1029,7 @@ acpi_bus_add (
int result = 0;
struct acpi_device *device = NULL;
- ACPI_FUNCTION_TRACE("acpi_bus_add");
+ ACPI_FUNCTION_TRACE("acpi_add_single_object");
if (!child)
return_VALUE(-EINVAL);
@@ -1142,7 +1152,7 @@ acpi_bus_add (
*
* TBD: Assumes LDM provides driver hot-plug capability.
*/
- acpi_bus_find_driver(device);
+ result = acpi_bus_find_driver(device);
end:
if (!result)
@@ -1155,10 +1165,10 @@ end:
return_VALUE(result);
}
-EXPORT_SYMBOL(acpi_bus_add);
-int acpi_bus_scan (struct acpi_device *start)
+static int acpi_bus_scan (struct acpi_device *start,
+ struct acpi_bus_ops *ops)
{
acpi_status status = AE_OK;
struct acpi_device *parent = NULL;
@@ -1231,9 +1241,20 @@ int acpi_bus_scan (struct acpi_device *start)
continue;
}
- status = acpi_bus_add(&child, parent, chandle, type);
- if (ACPI_FAILURE(status))
- continue;
+ if (ops->acpi_op_add)
+ status = acpi_add_single_object(&child, parent,
+ chandle, type);
+ else
+ status = acpi_bus_get_device(chandle, &child);
+
+ if (ACPI_FAILURE(status))
+ continue;
+
+ if (ops->acpi_op_start) {
+ status = acpi_start_single_object(child);
+ if (ACPI_FAILURE(status))
+ continue;
+ }
/*
* If the device is present, enabled, and functioning then
@@ -1259,8 +1280,50 @@ int acpi_bus_scan (struct acpi_device *start)
return_VALUE(0);
}
-EXPORT_SYMBOL(acpi_bus_scan);
+int
+acpi_bus_add (
+ struct acpi_device **child,
+ struct acpi_device *parent,
+ acpi_handle handle,
+ int type)
+{
+ int result;
+ struct acpi_bus_ops ops;
+
+ ACPI_FUNCTION_TRACE("acpi_bus_add");
+
+ result = acpi_add_single_object(child, parent, handle, type);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ result = acpi_bus_scan(*child, &ops);
+ }
+ return_VALUE(result);
+}
+EXPORT_SYMBOL(acpi_bus_add);
+
+int
+acpi_bus_start (
+ struct acpi_device *device)
+{
+ int result;
+ struct acpi_bus_ops ops;
+
+ ACPI_FUNCTION_TRACE("acpi_bus_start");
+
+ if (!device)
+ return_VALUE(-EINVAL);
+
+ result = acpi_start_single_object(device);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_start = 1;
+ result = acpi_bus_scan(device, &ops);
+ }
+ return_VALUE(result);
+}
+EXPORT_SYMBOL(acpi_bus_start);
static int
acpi_bus_trim(struct acpi_device *start,
@@ -1333,13 +1396,19 @@ acpi_bus_scan_fixed (
/*
* Enumerate all fixed-feature devices.
*/
- if (acpi_fadt.pwr_button == 0)
- result = acpi_bus_add(&device, acpi_root,
+ if (acpi_fadt.pwr_button == 0) {
+ result = acpi_add_single_object(&device, acpi_root,
NULL, ACPI_BUS_TYPE_POWER_BUTTON);
+ if (!result)
+ result = acpi_start_single_object(device);
+ }
- if (acpi_fadt.sleep_button == 0)
- result = acpi_bus_add(&device, acpi_root,
+ if (acpi_fadt.sleep_button == 0) {
+ result = acpi_add_single_object(&device, acpi_root,
NULL, ACPI_BUS_TYPE_SLEEP_BUTTON);
+ if (!result)
+ result = acpi_start_single_object(device);
+ }
return_VALUE(result);
}
@@ -1348,6 +1417,7 @@ acpi_bus_scan_fixed (
static int __init acpi_scan_init(void)
{
int result;
+ struct acpi_bus_ops ops;
ACPI_FUNCTION_TRACE("acpi_scan_init");
@@ -1359,17 +1429,23 @@ static int __init acpi_scan_init(void)
/*
* Create the root device in the bus's device tree
*/
- result = acpi_bus_add(&acpi_root, NULL, ACPI_ROOT_OBJECT,
+ result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT,
ACPI_BUS_TYPE_SYSTEM);
if (result)
goto Done;
+ result = acpi_start_single_object(acpi_root);
+
/*
* Enumerate devices in the ACPI namespace.
*/
result = acpi_bus_scan_fixed(acpi_root);
- if (!result)
- result = acpi_bus_scan(acpi_root);
+ if (!result) {
+ memset(&ops, 0, sizeof(ops));
+ ops.acpi_op_add = 1;
+ ops.acpi_op_start = 1;
+ result = acpi_bus_scan(acpi_root, &ops);
+ }
if (result)
acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL);
diff --git a/drivers/acpi/sleep/poweroff.c b/drivers/acpi/sleep/poweroff.c
index 1fc86e6b5ab..186b182c582 100644
--- a/drivers/acpi/sleep/poweroff.c
+++ b/drivers/acpi/sleep/poweroff.c
@@ -19,8 +19,6 @@
int acpi_sleep_prepare(u32 acpi_state)
{
- /* Flag to do not allow second time invocation for S5 state */
- static int shutdown_prepared = 0;
#ifdef CONFIG_ACPI_SLEEP
/* do we have a wakeup address for S2 and S3? */
/* Here, we support only S4BIOS, those we set the wakeup address */
@@ -38,28 +36,23 @@ int acpi_sleep_prepare(u32 acpi_state)
acpi_enable_wakeup_device_prep(acpi_state);
#endif
if (acpi_state == ACPI_STATE_S5) {
- /* Check if we were already called */
- if (shutdown_prepared)
- return 0;
acpi_wakeup_gpe_poweroff_prepare();
- shutdown_prepared = 1;
}
acpi_enter_sleep_state_prep(acpi_state);
return 0;
}
+#ifdef CONFIG_PM
+
void acpi_power_off(void)
{
+ /* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
printk("%s called\n", __FUNCTION__);
- acpi_sleep_prepare(ACPI_STATE_S5);
local_irq_disable();
/* Some SMP machines only can poweroff in boot CPU */
- set_cpus_allowed(current, cpumask_of_cpu(0));
acpi_enter_sleep_state(ACPI_STATE_S5);
}
-#ifdef CONFIG_PM
-
static int acpi_shutdown(struct sys_device *x)
{
return acpi_sleep_prepare(ACPI_STATE_S5);
@@ -75,8 +68,6 @@ static struct sys_device device_acpi = {
.cls = &acpi_sysclass,
};
-#endif
-
static int acpi_poweroff_init(void)
{
if (!acpi_disabled) {
@@ -86,19 +77,18 @@ static int acpi_poweroff_init(void)
status =
acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
- pm_power_off = acpi_power_off;
-#ifdef CONFIG_PM
- {
- int error;
- error = sysdev_class_register(&acpi_sysclass);
- if (!error)
- error = sysdev_register(&device_acpi);
- return error;
- }
-#endif
+ int error;
+ error = sysdev_class_register(&acpi_sysclass);
+ if (!error)
+ error = sysdev_register(&device_acpi);
+ if (!error)
+ pm_power_off = acpi_power_off;
+ return error;
}
}
return 0;
}
late_initcall(acpi_poweroff_init);
+
+#endif /* CONFIG_PM */
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 12:10:54 +0000