#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+
+#include "internal.h"
#include "sleep.h"
u8 sleep_states[ACPI_S_STATE_COUNT];
#ifdef CONFIG_ACPI_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
/*
- * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
- * user to request that behavior by using the 'acpi_old_suspend_ordering'
- * kernel command line option that causes the following variable to be set.
- */
-static bool old_suspend_ordering;
-
-void __init acpi_old_suspend_ordering(void)
-{
- old_suspend_ordering = true;
-}
-
-/*
* According to the ACPI specification the BIOS should make sure that ACPI is
* enabled and SCI_EN bit is set on wake-up from S1 - S3 sleep states. Still,
* some BIOSes don't do that and therefore we use acpi_enable() to enable ACPI
* cases.
*/
static bool set_sci_en_on_resume;
+
+void __init acpi_set_sci_en_on_resume(void)
+{
+ set_sci_en_on_resume = true;
+}
+
/*
- * The ACPI specification wants us to save NVS memory regions during hibernation
- * and to restore them during the subsequent resume. However, it is not certain
- * if this mechanism is going to work on all machines, so we allow the user to
- * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
- * option.
+ * ACPI 1.0 wants us to execute _PTS before suspending devices, so we allow the
+ * user to request that behavior by using the 'acpi_old_suspend_ordering'
+ * kernel command line option that causes the following variable to be set.
*/
-static bool s4_no_nvs;
+static bool old_suspend_ordering;
-void __init acpi_s4_no_nvs(void)
+void __init acpi_old_suspend_ordering(void)
{
- s4_no_nvs = true;
+ old_suspend_ordering = true;
}
/**
/* If ACPI is not enabled by the BIOS, we need to enable it here. */
if (set_sci_en_on_resume)
- acpi_set_register(ACPI_BITREG_SCI_ENABLE, 1);
+ acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
else
acpi_enable();
static struct platform_suspend_ops acpi_suspend_ops = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin,
- .prepare = acpi_pm_prepare,
+ .prepare_late = acpi_pm_prepare,
.enter = acpi_suspend_enter,
- .finish = acpi_pm_finish,
+ .wake = acpi_pm_finish,
.end = acpi_pm_end,
};
static struct platform_suspend_ops acpi_suspend_ops_old = {
.valid = acpi_suspend_state_valid,
.begin = acpi_suspend_begin_old,
- .prepare = acpi_pm_disable_gpes,
+ .prepare_late = acpi_pm_disable_gpes,
.enter = acpi_suspend_enter,
- .finish = acpi_pm_finish,
+ .wake = acpi_pm_finish,
.end = acpi_pm_end,
.recover = acpi_pm_finish,
};
DMI_MATCH(DMI_PRODUCT_NAME, "Macmini1,1"),
},
},
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "Asus Pundit P1-AH2 (M2N8L motherboard)",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTek Computer INC."),
+ DMI_MATCH(DMI_BOARD_NAME, "M2N8L"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Toshiba Satellite L300",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L300"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard HP G7000 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP G7000 Notebook PC"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard HP Pavilion dv3 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv3 Notebook PC"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard Pavilion dv4",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv4"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard Pavilion dv7",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard Compaq Presario C700 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario C700 Notebook PC"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Hewlett-Packard Compaq Presario CQ40 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Compaq Presario CQ40 Notebook PC"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Lenovo ThinkPad T410",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T410"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Lenovo ThinkPad T510",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T510"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Lenovo ThinkPad W510",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W510"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Lenovo ThinkPad X201[s]",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X201"),
+ },
+ },
+ {
+ .callback = init_old_suspend_ordering,
+ .ident = "Panasonic CF51-2L",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR,
+ "Matsushita Electric Industrial Co.,Ltd."),
+ DMI_MATCH(DMI_BOARD_NAME, "CF51-2L"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Dell Studio 1558",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1558"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Dell Studio 1557",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1557"),
+ },
+ },
+ {
+ .callback = init_set_sci_en_on_resume,
+ .ident = "Dell Studio 1555",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1555"),
+ },
+ },
{},
};
#endif /* CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATION
+/*
+ * The ACPI specification wants us to save NVS memory regions during hibernation
+ * and to restore them during the subsequent resume. However, it is not certain
+ * if this mechanism is going to work on all machines, so we allow the user to
+ * disable this mechanism using the 'acpi_sleep=s4_nonvs' kernel command line
+ * option.
+ */
+static bool s4_no_nvs;
+
+void __init acpi_s4_no_nvs(void)
+{
+ s4_no_nvs = true;
+}
+
static unsigned long s4_hardware_signature;
static struct acpi_table_facs *facs;
static bool nosigcheck;
hibernate_nvs_restore();
}
-static void acpi_pm_enable_gpes(void)
+static int acpi_pm_pre_restore(void)
+{
+ acpi_disable_all_gpes();
+ acpi_os_wait_events_complete(NULL);
+ acpi_ec_suspend_transactions();
+ return 0;
+}
+
+static void acpi_pm_restore_cleanup(void)
{
+ acpi_ec_resume_transactions();
acpi_enable_all_runtime_gpes();
}
.prepare = acpi_pm_prepare,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
+ .pre_restore = acpi_pm_pre_restore,
+ .restore_cleanup = acpi_pm_restore_cleanup,
};
/**
.prepare = acpi_pm_disable_gpes,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
+ .pre_restore = acpi_pm_pre_restore,
+ .restore_cleanup = acpi_pm_restore_cleanup,
.recover = acpi_pm_finish,
};
#endif /* CONFIG_HIBERNATION */
{
acpi_handle handle;
struct acpi_device *adev;
+ int error;
- if (!device_may_wakeup(dev))
+ if (!device_can_wakeup(dev))
return -EINVAL;
handle = DEVICE_ACPI_HANDLE(dev);
if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) {
- printk(KERN_DEBUG "ACPI handle has no context!\n");
+ dev_dbg(dev, "ACPI handle has no context in %s!\n", __func__);
return -ENODEV;
}
- return enable ?
- acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
- acpi_disable_wakeup_device_power(adev);
+ if (enable) {
+ error = acpi_enable_wakeup_device_power(adev,
+ acpi_target_sleep_state);
+ if (!error)
+ acpi_enable_gpe(adev->wakeup.gpe_device,
+ adev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE);
+ } else {
+ acpi_disable_gpe(adev->wakeup.gpe_device, adev->wakeup.gpe_number,
+ ACPI_GPE_TYPE_WAKE);
+ error = acpi_disable_wakeup_device_power(adev);
+ }
+ if (!error)
+ dev_info(dev, "wake-up capability %s by ACPI\n",
+ enable ? "enabled" : "disabled");
+
+ return error;
}
#endif
static void acpi_power_off(void)
{
/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
- printk("%s called\n", __func__);
+ printk(KERN_DEBUG "%s called\n", __func__);
local_irq_disable();
acpi_enable_wakeup_device(ACPI_STATE_S5);
acpi_enter_sleep_state(ACPI_STATE_S5);
}
+/*
+ * ACPI 2.0 created the optional _GTS and _BFS,
+ * but industry adoption has been neither rapid nor broad.
+ *
+ * Linux gets into trouble when it executes poorly validated
+ * paths through the BIOS, so disable _GTS and _BFS by default,
+ * but do speak up and offer the option to enable them.
+ */
+void __init acpi_gts_bfs_check(void)
+{
+ acpi_handle dummy;
+
+ if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__GTS, &dummy)))
+ {
+ printk(KERN_NOTICE PREFIX "BIOS offers _GTS\n");
+ printk(KERN_NOTICE PREFIX "If \"acpi.gts=1\" improves suspend, "
+ "please notify linux-acpi@vger.kernel.org\n");
+ }
+ if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_NAME__BFS, &dummy)))
+ {
+ printk(KERN_NOTICE PREFIX "BIOS offers _BFS\n");
+ printk(KERN_NOTICE PREFIX "If \"acpi.bfs=1\" improves resume, "
+ "please notify linux-acpi@vger.kernel.org\n");
+ }
+}
+
int __init acpi_sleep_init(void)
{
acpi_status status;
* object can also be evaluated when the system enters S5.
*/
register_reboot_notifier(&tts_notifier);
+ acpi_gts_bfs_check();
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff