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-rw-r--r--drivers/acpi/asus_acpi.c55
-rw-r--r--drivers/acpi/battery.c5
-rw-r--r--drivers/acpi/blacklist.c381
-rw-r--r--drivers/acpi/bus.c13
-rw-r--r--drivers/acpi/ec.c26
-rw-r--r--drivers/acpi/fan.c40
-rw-r--r--drivers/acpi/hardware/hwsleep.c79
-rw-r--r--drivers/acpi/osl.c173
-rw-r--r--drivers/acpi/pci_link.c2
-rw-r--r--drivers/acpi/processor_idle.c52
-rw-r--r--drivers/acpi/processor_throttling.c4
-rw-r--r--drivers/acpi/scan.c2
-rw-r--r--drivers/acpi/sleep/main.c144
-rw-r--r--drivers/acpi/sleep/sleep.h2
-rw-r--r--drivers/acpi/system.c13
-rw-r--r--drivers/acpi/utilities/utresrc.c2
16 files changed, 855 insertions, 138 deletions
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index d915fec..d25ef96 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -142,6 +142,7 @@ struct asus_hotk {
xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
A4S, //Z81sp
//(Centrino)
+ F3Sa,
END_MODEL
} model; //Models currently supported
u16 event_count[128]; //count for each event TODO make this better
@@ -405,7 +406,20 @@ static struct model_data model_conf[END_MODEL] = {
.brightness_get = "GPLV",
.mt_bt_switch = "BLED",
.mt_wled = "WLED"
- }
+ },
+
+ {
+ .name = "F3Sa",
+ .mt_bt_switch = "BLED",
+ .mt_wled = "WLED",
+ .mt_mled = "MLED",
+ .brightness_get = "GPLV",
+ .brightness_set = "SPLV",
+ .mt_lcd_switch = "\\_SB.PCI0.SBRG.EC0._Q10",
+ .lcd_status = "\\_SB.PCI0.SBRG.EC0.RPIN",
+ .display_get = "\\ADVG",
+ .display_set = "SDSP",
+ },
};
@@ -710,15 +724,8 @@ static int get_lcd_state(void)
{
int lcd = 0;
- if (hotk->model != L3H) {
- /* We don't have to check anything if we are here */
- if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
- printk(KERN_WARNING
- "Asus ACPI: Error reading LCD status\n");
-
- if (hotk->model == L2D)
- lcd = ~lcd;
- } else { /* L3H and the like have to be handled differently */
+ if (hotk->model == L3H) {
+ /* L3H and the like have to be handled differently */
acpi_status status = 0;
struct acpi_object_list input;
union acpi_object mt_params[2];
@@ -745,6 +752,32 @@ static int get_lcd_state(void)
if (out_obj.type == ACPI_TYPE_INTEGER)
/* That's what the AML code does */
lcd = out_obj.integer.value >> 8;
+ } else if (hotk->model == F3Sa) {
+ unsigned long tmp;
+ union acpi_object param;
+ struct acpi_object_list input;
+ acpi_status status;
+
+ /* Read pin 11 */
+ param.type = ACPI_TYPE_INTEGER;
+ param.integer.value = 0x11;
+ input.count = 1;
+ input.pointer = &param;
+
+ status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status,
+ &input, &tmp);
+ if (status != AE_OK)
+ return -1;
+
+ lcd = tmp;
+ } else {
+ /* We don't have to check anything if we are here */
+ if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
+ printk(KERN_WARNING
+ "Asus ACPI: Error reading LCD status\n");
+
+ if (hotk->model == L2D)
+ lcd = ~lcd;
}
return (lcd & 1);
@@ -1134,6 +1167,8 @@ static int asus_model_match(char *model)
return W5A;
else if (strncmp(model, "A4S", 3) == 0)
return A4S;
+ else if (strncmp(model, "F3Sa", 4) == 0)
+ return F3Sa;
else
return END_MODEL;
}
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index c4a769d..f6215e8 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -194,6 +194,9 @@ static int acpi_battery_get_property(struct power_supply *psy,
case POWER_SUPPLY_PROP_MANUFACTURER:
val->strval = battery->oem_info;
break;
+ case POWER_SUPPLY_PROP_SERIAL_NUMBER:
+ val->strval = battery->serial_number;
+ break;
default:
return -EINVAL;
}
@@ -212,6 +215,7 @@ static enum power_supply_property charge_battery_props[] = {
POWER_SUPPLY_PROP_CHARGE_NOW,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
static enum power_supply_property energy_battery_props[] = {
@@ -226,6 +230,7 @@ static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_ENERGY_NOW,
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
+ POWER_SUPPLY_PROP_SERIAL_NUMBER,
};
#endif
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 3ec110c..8809654 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -3,6 +3,7 @@
*
* Check to see if the given machine has a known bad ACPI BIOS
* or if the BIOS is too old.
+ * Check given machine against acpi_osi_dmi_table[].
*
* Copyright (C) 2004 Len Brown <len.brown@intel.com>
* Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
@@ -50,6 +51,8 @@ struct acpi_blacklist_item {
u32 is_critical_error;
};
+static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
+
/*
* POLICY: If *anything* doesn't work, put it on the blacklist.
* If they are critical errors, mark it critical, and abort driver load.
@@ -165,5 +168,383 @@ int __init acpi_blacklisted(void)
blacklisted += blacklist_by_year();
+ dmi_check_system(acpi_osi_dmi_table);
+
return blacklisted;
}
+#ifdef CONFIG_DMI
+static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
+{
+ acpi_dmi_osi_linux(1, d); /* enable */
+ return 0;
+}
+static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)
+{
+ acpi_dmi_osi_linux(0, d); /* disable */
+ return 0;
+}
+static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)
+{
+ acpi_dmi_osi_linux(-1, d); /* unknown */
+ return 0;
+}
+
+/*
+ * Most BIOS that invoke OSI(Linux) do nothing with it.
+ * But some cause Linux to break.
+ * Only a couple use it to make Linux run better.
+ *
+ * Thus, Linux should continue to disable OSI(Linux) by default,
+ * should continue to discourage BIOS writers from using it, and
+ * should whitelist the few existing systems that require it.
+ *
+ * If it appears clear a vendor isn't using OSI(Linux)
+ * for anything constructive, blacklist them by name to disable
+ * unnecessary dmesg warnings on all of their products.
+ */
+
+static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+ /*
+ * Disable OSI(Linux) warnings on all "Acer, inc."
+ *
+ * _OSI(Linux) disables the latest Windows BIOS code:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
+ * _OSI(Linux) effect unknown:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Acer, inc.",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Acer"
+ *
+ * _OSI(Linux) effect unknown:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
+ */
+ {
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Acer",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
+ * _OSI(Linux) effect unknown:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Apple",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "BenQ"
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "BenQ",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Clevo Co."
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Clevo",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "COMPAL"
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
+ * _OSI(Linux) unknown effect:
+ * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
+ */
+ {
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Compal",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
+ },
+ },
+ { /* OSI(Linux) touches USB, breaks suspend to disk */
+ .callback = dmi_disable_osi_linux,
+ .ident = "Dell Dimension 5150",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
+ },
+ },
+ { /* OSI(Linux) is a NOP */
+ .callback = dmi_disable_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
+ },
+ },
+ { /* OSI(Linux) effect unknown */
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
+ },
+ },
+ { /* OSI(Linux) effect unknown */
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
+ },
+ },
+ { /* OSI(Linux) effect unknown */
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
+ },
+ },
+ { /* OSI(Linux) touches USB */
+ .callback = dmi_disable_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
+ },
+ },
+ { /* OSI(Linux) is a NOP */
+ .callback = dmi_disable_osi_linux,
+ .ident = "Dell Vostro 1000",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1000"),
+ },
+ },
+ { /* OSI(Linux) effect unknown */
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Dell",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
+ },
+ },
+ { /* OSI(Linux) effect unknown */
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Dialogue Flybook V5",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
+ *
+ * _OSI(Linux) disables latest Windows BIOS code:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
+ * _OSI(Linux) unknown effect:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Fujitsu Siemens",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Hewlett-Packard"
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * .ident = "HP Pavilion tx 1000"
+ * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
+ * .ident = "HP Pavilion dv2000"
+ * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
+ * .ident = "HP Pavilion dv5000",
+ * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
+ * .ident = "HP Pavilion dv6300 30BC",
+ * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
+ * .ident = "HP Pavilion dv6000",
+ * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
+ * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
+ * .ident = "HP Pavilion dv9000",
+ * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
+ * .ident = "HP Pavilion dv9500",
+ * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
+ * .ident = "HP/Compaq Presario C500",
+ * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
+ * .ident = "HP/Compaq Presario F500",
+ * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
+ * _OSI(Linux) unknown effect:
+ * .ident = "HP Pavilion dv6500",
+ * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Hewlett-Packard",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ },
+ },
+ /*
+ * Lenovo has a mix of systems OSI(Linux) situations
+ * and thus we can not wildcard the vendor.
+ *
+ * _OSI(Linux) helps sound
+ * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
+ * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
+ * _OSI(Linux) is a NOP:
+ * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
+ */
+ {
+ .callback = dmi_enable_osi_linux,
+ .ident = "Lenovo ThinkPad R61",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
+ },
+ },
+ {
+ .callback = dmi_enable_osi_linux,
+ .ident = "Lenovo ThinkPad T61",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
+ },
+ },
+ {
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Lenovo 3000 V100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Lenovo 3000 N100",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "LG Electronics"
+ *
+ * _OSI(Linux) confirmed to be a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "LG",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
+ },
+ },
+ /* NEC - OSI(Linux) effect unknown */
+ {
+ .callback = dmi_unknown_osi_linux,
+ .ident = "NEC VERSA M360",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Samsung Electronics"
+ *
+ * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Samsung",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "Sony Corporation"
+ *
+ * _OSI(Linux) is a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
+ * _OSI(Linux) unknown effect:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
+ */
+ {
+ .callback = dmi_unknown_osi_linux,
+ .ident = "Sony",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+ },
+ },
+ /*
+ * Disable OSI(Linux) warnings on all "TOSHIBA"
+ *
+ * _OSI(Linux) breaks sound (bugzilla 7787):
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
+ * _OSI(Linux) is a NOP:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
+ * _OSI(Linux) unknown effect:
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
+ * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
+ */
+ {
+ .callback = dmi_disable_osi_linux,
+ .ident = "Toshiba",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+ },
+ },
+ {}
+};
+
+#endif /* CONFIG_DMI */
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index d7a115c..1b4cf98 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -200,7 +200,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
* Get device's current power state
*/
acpi_bus_get_power(device->handle, &device->power.state);
- if (state == device->power.state) {
+ if ((state == device->power.state) && !device->flags.force_power_state) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
state));
return 0;
@@ -743,7 +743,7 @@ static int __init acpi_bus_init(void)
return -ENODEV;
}
-decl_subsys(acpi, NULL, NULL);
+struct kobject *acpi_kobj;
static int __init acpi_init(void)
{
@@ -755,10 +755,11 @@ static int __init acpi_init(void)
return -ENODEV;
}
- result = firmware_register(&acpi_subsys);
- if (result < 0)
- printk(KERN_WARNING "%s: firmware_register error: %d\n",
- __FUNCTION__, result);
+ acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
+ if (!acpi_kobj) {
+ printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__);
+ acpi_kobj = NULL;
+ }
result = acpi_bus_init();
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 97dc161..987b967 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -26,6 +26,9 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
+/* Uncomment next line to get verbose print outs*/
+/* #define DEBUG */
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -47,9 +50,6 @@
#undef PREFIX
#define PREFIX "ACPI: EC: "
-/* Uncomment next line to get verbose print outs*/
-/* #define DEBUG */
-
/* EC status register */
#define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */
#define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */
@@ -82,6 +82,7 @@ enum {
EC_FLAGS_ADDRESS, /* Address is being written */
EC_FLAGS_NO_WDATA_GPE, /* Don't expect WDATA GPE event */
EC_FLAGS_WDATA, /* Data is being written */
+ EC_FLAGS_NO_OBF1_GPE, /* Don't expect GPE before read */
};
static int acpi_ec_remove(struct acpi_device *device, int type);
@@ -138,26 +139,26 @@ static struct acpi_ec {
static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
{
u8 x = inb(ec->command_addr);
- pr_debug(PREFIX "---> status = 0x%2x\n", x);
+ pr_debug(PREFIX "---> status = 0x%2.2x\n", x);
return x;
}
static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
{
u8 x = inb(ec->data_addr);
- pr_debug(PREFIX "---> data = 0x%2x\n", x);
+ pr_debug(PREFIX "---> data = 0x%2.2x\n", x);
return inb(ec->data_addr);
}
static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command)
{
- pr_debug(PREFIX "<--- command = 0x%2x\n", command);
+ pr_debug(PREFIX "<--- command = 0x%2.2x\n", command);
outb(command, ec->command_addr);
}
static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
{
- pr_debug(PREFIX "<--- data = 0x%2x\n", data);
+ pr_debug(PREFIX "<--- data = 0x%2.2x\n", data);
outb(data, ec->data_addr);
}
@@ -179,6 +180,10 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event)
static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
{
int ret = 0;
+
+ if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
+ test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
+ force_poll = 1;
if (unlikely(test_bit(EC_FLAGS_ADDRESS, &ec->flags) &&
test_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags)))
force_poll = 1;
@@ -192,7 +197,12 @@ static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
goto end;
clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
if (acpi_ec_check_status(ec, event)) {
- if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) {
+ if (event == ACPI_EC_EVENT_OBF_1) {
+ /* miss OBF_1 GPE, don't expect it */
+ pr_info(PREFIX "missing OBF confirmation, "
+ "don't expect it any longer.\n");
+ set_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags);
+ } else if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) {
/* miss address GPE, don't expect it anymore */
pr_info(PREFIX "missing address confirmation, "
"don't expect it any longer.\n");
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index a5a5532..a6e149d 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -47,6 +47,8 @@ MODULE_LICENSE("GPL");
static int acpi_fan_add(struct acpi_device *device);
static int acpi_fan_remove(struct acpi_device *device, int type);
+static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
+static int acpi_fan_resume(struct acpi_device *device);
static const struct acpi_device_id fan_device_ids[] = {
{"PNP0C0B", 0},
@@ -61,6 +63,8 @@ static struct acpi_driver acpi_fan_driver = {
.ops = {
.add = acpi_fan_add,
.remove = acpi_fan_remove,
+ .suspend = acpi_fan_suspend,
+ .resume = acpi_fan_resume,
},
};
@@ -191,6 +195,10 @@ static int acpi_fan_add(struct acpi_device *device)
goto end;
}
+ device->flags.force_power_state = 1;
+ acpi_bus_set_power(device->handle, state);
+ device->flags.force_power_state = 0;
+
result = acpi_fan_add_fs(device);
if (result)
goto end;
@@ -216,6 +224,38 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
return 0;
}
+static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state)
+{
+ if (!device)
+ return -EINVAL;
+
+ acpi_bus_set_power(device->handle, ACPI_STATE_D0);
+
+ return AE_OK;
+}
+
+static int acpi_fan_resume(struct acpi_device *device)
+{
+ int result = 0;
+ int power_state = 0;
+
+ if (!device)
+ return -EINVAL;
+
+ result = acpi_bus_get_power(device->handle, &power_state);
+ if (result) {
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Error reading fan power state\n"));
+ return result;
+ }
+
+ device->flags.force_power_state = 1;
+ acpi_bus_set_power(device->handle, power_state);
+ device->flags.force_power_state = 0;
+
+ return result;
+}
+
static int __init acpi_fan_init(void)
{
int result = 0;
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 81b2484..fd1c4ba 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -192,18 +192,13 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
arg.type = ACPI_TYPE_INTEGER;
arg.integer.value = sleep_state;
- /* Run the _PTS and _GTS methods */
+ /* Run the _PTS method */
status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
return_ACPI_STATUS(status);
}
- status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- return_ACPI_STATUS(status);
- }
-
/* Setup the argument to _SST */
switch (sleep_state) {
@@ -234,10 +229,6 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
"While executing method _SST"));
}
- /* Disable/Clear all GPEs */
-
- status = acpi_hw_disable_all_gpes();
-
return_ACPI_STATUS(status);
}
@@ -262,6 +253,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
struct acpi_bit_register_info *sleep_type_reg_info;
struct acpi_bit_register_info *sleep_enable_reg_info;
u32 in_value;
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
@@ -307,6 +300,18 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
return_ACPI_STATUS(status);
}
+ /* Execute the _GTS method */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = sleep_state;
+
+ status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ return_ACPI_STATUS(status);
+ }
+
/* Get current value of PM1A control */
status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
@@ -473,17 +478,18 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
/*******************************************************************************
*
- * FUNCTION: acpi_leave_sleep_state
+ * FUNCTION: acpi_leave_sleep_state_prep
*
- * PARAMETERS: sleep_state - Which sleep state we just exited
+ * PARAMETERS: sleep_state - Which sleep state we are exiting
*
* RETURN: Status
*
- * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
- * Called with interrupts ENABLED.
+ * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
+ * sleep.
+ * Called with interrupts DISABLED.
*
******************************************************************************/
-acpi_status acpi_leave_sleep_state(u8 sleep_state)
+acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
{
struct acpi_object_list arg_list;
union acpi_object arg;
@@ -493,7 +499,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
u32 PM1Acontrol;
u32 PM1Bcontrol;
- ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
+ ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
/*
* Set SLP_TYPE and SLP_EN to state S0.
@@ -540,6 +546,41 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
}
}
+ /* Execute the _BFS method */
+
+ arg_list.count = 1;
+ arg_list.pointer = &arg;
+ arg.type = ACPI_TYPE_INTEGER;
+ arg.integer.value = sleep_state;
+
+ status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
+ }
+
+ return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_leave_sleep_state
+ *
+ * PARAMETERS: sleep_state - Which sleep state we just exited
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
+ * Called with interrupts ENABLED.
+ *
+ ******************************************************************************/
+acpi_status acpi_leave_sleep_state(u8 sleep_state)
+{
+ struct acpi_object_list arg_list;
+ union acpi_object arg;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
+
/* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
@@ -558,12 +599,6 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
}
- arg.integer.value = sleep_state;
- status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
- }
-
/*
* GPEs must be enabled before _WAK is called as GPEs
* might get fired there
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e3a673a..e53fb51 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -77,11 +77,55 @@ static struct workqueue_struct *kacpi_notify_wq;
#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */
static char osi_additional_string[OSI_STRING_LENGTH_MAX];
-static int osi_linux; /* disable _OSI(Linux) by default */
+/*
+ * "Ode to _OSI(Linux)"
+ *
+ * osi_linux -- Control response to BIOS _OSI(Linux) query.
+ *
+ * As Linux evolves, the features that it supports change.
+ * So an OSI string such as "Linux" is not specific enough
+ * to be useful across multiple versions of Linux. It
+ * doesn't identify any particular feature, interface,
+ * or even any particular version of Linux...
+ *
+ * Unfortunately, Linux-2.6.22 and earlier responded "yes"
+ * to a BIOS _OSI(Linux) query. When
+ * a reference mobile BIOS started using it, its use
+ * started to spread to many vendor platforms.
+ * As it is not supportable, we need to halt that spread.
+ *
+ * Today, most BIOS references to _OSI(Linux) are noise --
+ * they have no functional effect and are just dead code
+ * carried over from the reference BIOS.
+ *
+ * The next most common case is that _OSI(Linux) harms Linux,
+ * usually by causing the BIOS to follow paths that are
+ * not tested during Windows validation.
+ *
+ * Finally, there is a short list of platforms
+ * where OSI(Linux) benefits Linux.
+ *
+ * In Linux-2.6.23, OSI(Linux) is first disabled by default.
+ * DMI is used to disable the dmesg warning about OSI(Linux)
+ * on platforms where it is known to have no effect.
+ * But a dmesg warning remains for systems where
+ * we do not know if OSI(Linux) is good or bad for the system.
+ * DMI is also used to enable OSI(Linux) for the machines
+ * that are known to need it.
+ *
+ * BIOS writers should NOT query _OSI(Linux) on future systems.
+ * It will be ignored by default, and to get Linux to
+ * not ignore it will require a kernel source update to
+ * add a DMI entry, or a boot-time "acpi_osi=Linux" invocation.
+ */
+#define OSI_LINUX_ENABLE 0
-#ifdef CONFIG_DMI
-static struct __initdata dmi_system_id acpi_osl_dmi_table[];
-#endif
+struct osi_linux {
+ unsigned int enable:1;
+ unsigned int dmi:1;
+ unsigned int cmdline:1;
+ unsigned int known:1;
+} osi_linux = { OSI_LINUX_ENABLE, 0, 0, 0};
static void __init acpi_request_region (struct acpi_generic_address *addr,
unsigned int length, char *desc)
@@ -133,7 +177,6 @@ device_initcall(acpi_reserve_resources);
acpi_status __init acpi_os_initialize(void)
{
- dmi_check_system(acpi_osl_dmi_table);
return AE_OK;
}
@@ -964,13 +1007,37 @@ static int __init acpi_os_name_setup(char *str)
__setup("acpi_os_name=", acpi_os_name_setup);
-static void enable_osi_linux(int enable) {
+static void __init set_osi_linux(unsigned int enable)
+{
+ if (osi_linux.enable != enable) {
+ osi_linux.enable = enable;
+ printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n",
+ enable ? "Add": "Delet");
+ }
+ return;
+}
- if (osi_linux != enable)
- printk(KERN_INFO PREFIX "%sabled _OSI(Linux)\n",
- enable ? "En": "Dis");
+static void __init acpi_cmdline_osi_linux(unsigned int enable)
+{
+ osi_linux.cmdline = 1; /* cmdline set the default */
+ set_osi_linux(enable);
+
+ return;
+}
+
+void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d)
+{
+ osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */
+
+ printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+
+ if (enable == -1)
+ return;
+
+ osi_linux.known = 1; /* DMI knows which OSI(Linux) default needed */
+
+ set_osi_linux(enable);
- osi_linux = enable;
return;
}
@@ -987,12 +1054,12 @@ static int __init acpi_osi_setup(char *str)
printk(KERN_INFO PREFIX "_OSI method disabled\n");
acpi_gbl_create_osi_method = FALSE;
} else if (!strcmp("!Linux", str)) {
- enable_osi_linux(0);
+ acpi_cmdline_osi_linux(0); /* !enable */
} else if (*str == '!') {
if (acpi_osi_invalidate(++str) == AE_OK)
printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str);
} else if (!strcmp("Linux", str)) {
- enable_osi_linux(1);
+ acpi_cmdline_osi_linux(1); /* enable */
} else if (*osi_additional_string == '\0') {
strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX);
printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str);
@@ -1141,6 +1208,34 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
return (AE_OK);
}
+/**
+ * acpi_dmi_dump - dump DMI slots needed for blacklist entry
+ *
+ * Returns 0 on success
+ */
+int acpi_dmi_dump(void)
+{
+
+ if (!dmi_available)
+ return -1;
+
+ printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n",
+ dmi_get_slot(DMI_SYS_VENDOR));
+ printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n",
+ dmi_get_slot(DMI_PRODUCT_NAME));
+ printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n",
+ dmi_get_slot(DMI_PRODUCT_VERSION));
+ printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n",
+ dmi_get_slot(DMI_BOARD_NAME));
+ printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n",
+ dmi_get_slot(DMI_BIOS_VENDOR));
+ printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n",
+ dmi_get_slot(DMI_BIOS_DATE));
+
+ return 0;
+}
+
+
/******************************************************************************
*
* FUNCTION: acpi_os_validate_interface
@@ -1160,13 +1255,29 @@ acpi_os_validate_interface (char *interface)
if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX))
return AE_OK;
if (!strcmp("Linux", interface)) {
- printk(KERN_WARNING PREFIX
- "System BIOS is requesting _OSI(Linux)\n");
- printk(KERN_WARNING PREFIX
- "If \"acpi_osi=Linux\" works better,\n"
- "Please send dmidecode "
- "to linux-acpi@vger.kernel.org\n");
- if(osi_linux)
+
+ printk(KERN_NOTICE PREFIX
+ "BIOS _OSI(Linux) query %s%s\n",
+ osi_linux.enable ? "honored" : "ignored",
+ osi_linux.cmdline ? " via cmdline" :
+ osi_linux.dmi ? " via DMI" : "");
+
+ if (!osi_linux.dmi) {
+ if (acpi_dmi_dump())
+ printk(KERN_NOTICE PREFIX
+ "[please extract dmidecode output]\n");
+ printk(KERN_NOTICE PREFIX
+ "Please send DMI info above to "
+ "linux-acpi@vger.kernel.org\n");
+ }
+ if (!osi_linux.known && !osi_linux.cmdline) {
+ printk(KERN_NOTICE PREFIX
+ "If \"acpi_osi=%sLinux\" works better, "
+ "please notify linux-acpi@vger.kernel.org\n",
+ osi_linux.enable ? "!" : "");
+ }
+
+ if (osi_linux.enable)
return AE_OK;
}
return AE_SUPPORT;
@@ -1198,28 +1309,4 @@ acpi_os_validate_address (
return AE_OK;
}
-#ifdef CONFIG_DMI
-static int dmi_osi_linux(const struct dmi_system_id *d)
-{
- printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident);
- enable_osi_linux(1);
- return 0;
-}
-
-static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {
- /*
- * Boxes that need _OSI(Linux)
- */
- {
- .callback = dmi_osi_linux,
- .ident = "Intel Napa CRB",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
- DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),
- },
- },
- {}
-};
-#endif /* CONFIG_DMI */
-
#endif
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index c9f526e..5400ea1 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -911,7 +911,7 @@ __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"),
+ .name = "irqrouter",
.resume = irqrouter_resume,
};
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 2235f4e..199ea21 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -38,7 +38,7 @@
#include <linux/dmi.h>
#include <linux/moduleparam.h>
#include <linux/sched.h> /* need_resched() */
-#include <linux/latency.h>
+#include <linux/pm_qos_params.h>
#include <linux/clockchips.h>
#include <linux/cpuidle.h>
@@ -357,6 +357,26 @@ int acpi_processor_resume(struct acpi_device * device)
return 0;
}
+#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
+static int tsc_halts_in_c(int state)
+{
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_AMD:
+ /*
+ * AMD Fam10h TSC will tick in all
+ * C/P/S0/S1 states when this bit is set.
+ */
+ if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
+ return 0;
+ /*FALL THROUGH*/
+ case X86_VENDOR_INTEL:
+ /* Several cases known where TSC halts in C2 too */
+ default:
+ return state > ACPI_STATE_C1;
+ }
+}
+#endif
+
#ifndef CONFIG_CPU_IDLE
static void acpi_processor_idle(void)
{
@@ -516,7 +536,8 @@ static void acpi_processor_idle(void)
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C2, so notify users */
- mark_tsc_unstable("possible TSC halt in C2");
+ if (tsc_halts_in_c(ACPI_STATE_C2))
+ mark_tsc_unstable("possible TSC halt in C2");
#endif
/* Compute time (ticks) that we were actually asleep */
sleep_ticks = ticks_elapsed(t1, t2);
@@ -534,6 +555,7 @@ static void acpi_processor_idle(void)
break;
case ACPI_STATE_C3:
+ acpi_unlazy_tlb(smp_processor_id());
/*
* Must be done before busmaster disable as we might
* need to access HPET !
@@ -579,7 +601,8 @@ static void acpi_processor_idle(void)
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC halts in C3, so notify users */
- mark_tsc_unstable("TSC halts in C3");
+ if (tsc_halts_in_c(ACPI_STATE_C3))
+ mark_tsc_unstable("TSC halts in C3");
#endif
/* Compute time (ticks) that we were actually asleep */
sleep_ticks = ticks_elapsed(t1, t2);
@@ -625,7 +648,8 @@ static void acpi_processor_idle(void)
if (cx->promotion.state &&
((cx->promotion.state - pr->power.states) <= max_cstate)) {
if (sleep_ticks > cx->promotion.threshold.ticks &&
- cx->promotion.state->latency <= system_latency_constraint()) {
+ cx->promotion.state->latency <=
+ pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)) {
cx->promotion.count++;
cx->demotion.count = 0;
if (cx->promotion.count >=
@@ -669,7 +693,8 @@ static void acpi_processor_idle(void)
* or if the latency of the current state is unacceptable
*/
if ((pr->power.state - pr->power.states) > max_cstate ||
- pr->power.state->latency > system_latency_constraint()) {
+ pr->power.state->latency >
+ pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)) {
if (cx->demotion.state)
next_state = cx->demotion.state;
}
@@ -1177,7 +1202,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
"maximum allowed latency: %d usec\n",
pr->power.state ? pr->power.state - pr->power.states : 0,
max_cstate, (unsigned)pr->power.bm_activity,
- system_latency_constraint());
+ pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
seq_puts(seq, "states:\n");
@@ -1423,6 +1448,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
return 0;
}
+ acpi_unlazy_tlb(smp_processor_id());
/*
* Must be done before busmaster disable as we might need to
* access HPET !
@@ -1443,7 +1469,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC could halt in idle, so notify users */
- mark_tsc_unstable("TSC halts in idle");;
+ if (tsc_halts_in_c(cx->type))
+ mark_tsc_unstable("TSC halts in idle");;
#endif
sleep_ticks = ticks_elapsed(t1, t2);
@@ -1554,7 +1581,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
/* TSC could halt in idle, so notify users */
- mark_tsc_unstable("TSC halts in idle");
+ if (tsc_halts_in_c(ACPI_STATE_C3))
+ mark_tsc_unstable("TSC halts in idle");
#endif
sleep_ticks = ticks_elapsed(t1, t2);
/* Tell the scheduler how much we idled: */
@@ -1692,8 +1720,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
"ACPI: processor limited to max C-state %d\n",
max_cstate);
first_run++;
-#if !defined (CONFIG_CPU_IDLE) && defined (CONFIG_SMP)
- register_latency_notifier(&acpi_processor_latency_notifier);
+#if !defined(CONFIG_CPU_IDLE) && defined(CONFIG_SMP)
+ pm_qos_add_notifier(PM_QOS_CPU_DMA_LATENCY,
+ &acpi_processor_latency_notifier);
#endif
}
@@ -1780,7 +1809,8 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
*/
cpu_idle_wait();
#ifdef CONFIG_SMP
- unregister_latency_notifier(&acpi_processor_latency_notifier);
+ pm_qos_remove_notifier(PM_QOS_CPU_DMA_LATENCY,
+ &acpi_processor_latency_notifier);
#endif
}
#endif
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 6742d7b..1685b40 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -775,12 +775,12 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
acpi_processor_get_throttling_states(pr) ||
acpi_processor_get_platform_limit(pr))
{
- if (acpi_processor_get_fadt_info(pr))
- return 0;
pr->throttling.acpi_processor_get_throttling =
&acpi_processor_get_throttling_fadt;
pr->throttling.acpi_processor_set_throttling =
&acpi_processor_set_throttling_fadt;
+ if (acpi_processor_get_fadt_info(pr))
+ return 0;
} else {
pr->throttling.acpi_processor_get_throttling =
&acpi_processor_get_throttling_ptc;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index cbfe9ae..d9d531c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -830,7 +830,7 @@ static int acpi_bus_get_flags(struct acpi_device *device)
if (ACPI_SUCCESS(status))
device->flags.wake_capable = 1;
- /* TBD: Peformance management */
+ /* TBD: Performance management */
return 0;
}
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 2c0b663..7f97e32 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -26,9 +26,24 @@ u8 sleep_states[ACPI_S_STATE_COUNT];
#ifdef CONFIG_PM_SLEEP
static u32 acpi_target_sleep_state = ACPI_STATE_S0;
+static bool acpi_sleep_finish_wake_up;
+
+/*
+ * ACPI 2.0 and later want us to execute _PTS after suspending devices, so we
+ * allow the user to request that behavior by using the 'acpi_new_pts_ordering'
+ * kernel command line option that causes the following variable to be set.
+ */
+static bool new_pts_ordering;
+
+static int __init acpi_new_pts_ordering(char *str)
+{
+ new_pts_ordering = true;
+ return 1;
+}
+__setup("acpi_new_pts_ordering", acpi_new_pts_ordering);
#endif
-int acpi_sleep_prepare(u32 acpi_state)
+static int acpi_sleep_prepare(u32 acpi_state)
{
#ifdef CONFIG_ACPI_SLEEP
/* do we have a wakeup address for S2 and S3? */
@@ -44,6 +59,8 @@ int acpi_sleep_prepare(u32 acpi_state)
ACPI_FLUSH_CPU_CACHE();
acpi_enable_wakeup_device_prep(acpi_state);
#endif
+ printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
+ acpi_state);
acpi_enter_sleep_state_prep(acpi_state);
return 0;
}
@@ -63,17 +80,25 @@ static u32 acpi_suspend_states[] = {
static int init_8259A_after_S1;
/**
- * acpi_pm_set_target - Set the target system sleep state to the state
+ * acpi_pm_begin - Set the target system sleep state to the state
* associated with given @pm_state, if supported.
*/
-static int acpi_pm_set_target(suspend_state_t pm_state)
+static int acpi_pm_begin(suspend_state_t pm_state)
{
u32 acpi_state = acpi_suspend_states[pm_state];
int error = 0;
if (sleep_states[acpi_state]) {
acpi_target_sleep_state = acpi_state;
+ if (new_pts_ordering)
+ return 0;
+
+ error = acpi_sleep_prepare(acpi_state);
+ if (error)
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ else
+ acpi_sleep_finish_wake_up = true;
} else {
printk(KERN_ERR "ACPI does not support this state: %d\n",
pm_state);
@@ -91,12 +116,17 @@ static int acpi_pm_set_target(suspend_state_t pm_state)
static int acpi_pm_prepare(void)
{
- int error = acpi_sleep_prepare(acpi_target_sleep_state);
+ if (new_pts_ordering) {
+ int error = acpi_sleep_prepare(acpi_target_sleep_state);
- if (error)
- acpi_target_sleep_state = ACPI_STATE_S0;
+ if (error) {
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ return error;
+ }
+ acpi_sleep_finish_wake_up = true;
+ }
- return error;
+ return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
}
/**
@@ -120,10 +150,8 @@ static int acpi_pm_enter(suspend_state_t pm_state)
if (acpi_state == ACPI_STATE_S3) {
int error = acpi_save_state_mem();
- if (error) {
- acpi_target_sleep_state = ACPI_STATE_S0;
+ if (error)
return error;
- }
}
local_irq_save(flags);
@@ -139,6 +167,9 @@ static int acpi_pm_enter(suspend_state_t pm_state)
break;
}
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(acpi_state);
+
/* ACPI 3.0 specs (P62) says that it's the responsabilty
* of the OSPM to clear the status bit [ implying that the
* POWER_BUTTON event should not reach userspace ]
@@ -146,6 +177,13 @@ static int acpi_pm_enter(suspend_state_t pm_state)
if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3))
acpi_clear_event(ACPI_EVENT_POWER_BUTTON);
+ /*
+ * Disable and clear GPE status before interrupt is enabled. Some GPEs
+ * (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
+ * acpi_leave_sleep_state will reenable specific GPEs later
+ */
+ acpi_hw_disable_all_gpes();
+
local_irq_restore(flags);
printk(KERN_DEBUG "Back to C!\n");
@@ -157,7 +195,7 @@ static int acpi_pm_enter(suspend_state_t pm_state)
}
/**
- * acpi_pm_finish - Finish up suspend sequence.
+ * acpi_pm_finish - Instruct the platform to leave a sleep state.
*
* This is called after we wake back up (or if entering the sleep state
* failed).
@@ -174,6 +212,7 @@ static void acpi_pm_finish(void)
acpi_set_firmware_waking_vector((acpi_physical_address) 0);
acpi_target_sleep_state = ACPI_STATE_S0;
+ acpi_sleep_finish_wake_up = false;
#ifdef CONFIG_X86
if (init_8259A_after_S1) {
@@ -183,6 +222,20 @@ static void acpi_pm_finish(void)
#endif
}
+/**
+ * acpi_pm_end - Finish up suspend sequence.
+ */
+
+static void acpi_pm_end(void)
+{
+ /*
+ * This is necessary in case acpi_pm_finish() is not called directly
+ * during a failing transition to a sleep state.
+ */
+ if (acpi_sleep_finish_wake_up)
+ acpi_pm_finish();
+}
+
static int acpi_pm_state_valid(suspend_state_t pm_state)
{
u32 acpi_state;
@@ -201,10 +254,11 @@ static int acpi_pm_state_valid(suspend_state_t pm_state)
static struct platform_suspend_ops acpi_pm_ops = {
.valid = acpi_pm_state_valid,
- .set_target = acpi_pm_set_target,
+ .begin = acpi_pm_begin,
.prepare = acpi_pm_prepare,
.enter = acpi_pm_enter,
.finish = acpi_pm_finish,
+ .end = acpi_pm_end,
};
/*
@@ -229,15 +283,36 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
#endif /* CONFIG_SUSPEND */
#ifdef CONFIG_HIBERNATION
-static int acpi_hibernation_start(void)
+static int acpi_hibernation_begin(void)
{
+ int error;
+
acpi_target_sleep_state = ACPI_STATE_S4;
- return 0;
+ if (new_pts_ordering)
+ return 0;
+
+ error = acpi_sleep_prepare(ACPI_STATE_S4);
+ if (error)
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ else
+ acpi_sleep_finish_wake_up = true;
+
+ return error;
}
static int acpi_hibernation_prepare(void)
{
- return acpi_sleep_prepare(ACPI_STATE_S4);
+ if (new_pts_ordering) {
+ int error = acpi_sleep_prepare(ACPI_STATE_S4);
+
+ if (error) {
+ acpi_target_sleep_state = ACPI_STATE_S0;
+ return error;
+ }
+ acpi_sleep_finish_wake_up = true;
+ }
+
+ return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
}
static int acpi_hibernation_enter(void)
@@ -251,6 +326,8 @@ static int acpi_hibernation_enter(void)
acpi_enable_wakeup_device(ACPI_STATE_S4);
/* This shouldn't return. If it returns, we have a problem */
status = acpi_enter_sleep_state(ACPI_STATE_S4);
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(ACPI_STATE_S4);
local_irq_restore(flags);
return ACPI_SUCCESS(status) ? 0 : -EFAULT;
@@ -263,15 +340,12 @@ static void acpi_hibernation_leave(void)
* enable it here.
*/
acpi_enable();
+ /* Reprogram control registers and execute _BFS */
+ acpi_leave_sleep_state_prep(ACPI_STATE_S4);
}
static void acpi_hibernation_finish(void)
{
- /*
- * If ACPI is not enabled by the BIOS and the boot kernel, we need to
- * enable it here.
- */
- acpi_enable();
acpi_disable_wakeup_device(ACPI_STATE_S4);
acpi_leave_sleep_state(ACPI_STATE_S4);
@@ -279,6 +353,17 @@ static void acpi_hibernation_finish(void)
acpi_set_firmware_waking_vector((acpi_physical_address) 0);
acpi_target_sleep_state = ACPI_STATE_S0;
+ acpi_sleep_finish_wake_up = false;
+}
+
+static void acpi_hibernation_end(void)
+{
+ /*
+ * This is necessary in case acpi_hibernation_finish() is not called
+ * directly during a failing transition to the sleep state.
+ */
+ if (acpi_sleep_finish_wake_up)
+ acpi_hibernation_finish();
}
static int acpi_hibernation_pre_restore(void)
@@ -296,7 +381,8 @@ static void acpi_hibernation_restore_cleanup(void)
}
static struct platform_hibernation_ops acpi_hibernation_ops = {
- .start = acpi_hibernation_start,
+ .begin = acpi_hibernation_begin,
+ .end = acpi_hibernation_end,
.pre_snapshot = acpi_hibernation_prepare,
.finish = acpi_hibernation_finish,
.prepare = acpi_hibernation_prepare,
@@ -386,11 +472,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
if (acpi_target_sleep_state == ACPI_STATE_S0 ||
(wake && adev->wakeup.state.enabled &&
adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
+ acpi_status status;
+
acpi_method[3] = 'W';
- acpi_evaluate_integer(handle, acpi_method, NULL, &d_max);
- /* Sanity check */
- if (d_max < d_min)
+ status = acpi_evaluate_integer(handle, acpi_method, NULL,
+ &d_max);
+ if (ACPI_FAILURE(status)) {
+ d_max = d_min;
+ } else if (d_max < d_min) {
+ /* Warn the user of the broken DSDT */
+ printk(KERN_WARNING "ACPI: Wrong value from %s\n",
+ acpi_method);
+ /* Sanitize it */
d_min = d_max;
+ }
}
if (d_min_p)
@@ -403,6 +498,7 @@ static void acpi_power_off_prepare(void)
{
/* Prepare to power off the system */
acpi_sleep_prepare(ACPI_STATE_S5);
+ acpi_hw_disable_all_gpes();
}
static void acpi_power_off(void)
diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h
index a2ea125..cfaf8f5 100644
--- a/drivers/acpi/sleep/sleep.h
+++ b/drivers/acpi/sleep/sleep.h
@@ -5,5 +5,3 @@ extern int acpi_suspend (u32 state);
extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
extern void acpi_enable_wakeup_device(u8 sleep_state);
extern void acpi_disable_wakeup_device(u8 sleep_state);
-
-extern int acpi_sleep_prepare(u32 acpi_state);
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index edee280..5ffe0ea 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -58,7 +58,7 @@ module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
FS Interface (/sys)
-------------------------------------------------------------------------- */
static LIST_HEAD(acpi_table_attr_list);
-static struct kobject tables_kobj;
+static struct kobject *tables_kobj;
struct acpi_table_attr {
struct bin_attribute attr;
@@ -135,11 +135,9 @@ static int acpi_system_sysfs_init(void)
int table_index = 0;
int result;
- tables_kobj.parent = &acpi_subsys.kobj;
- kobject_set_name(&tables_kobj, "tables");
- result = kobject_register(&tables_kobj);
- if (result)
- return result;
+ tables_kobj = kobject_create_and_add("tables", acpi_kobj);
+ if (!tables_kobj)
+ return -ENOMEM;
do {
result = acpi_get_table_by_index(table_index, &table_header);
@@ -153,7 +151,7 @@ static int acpi_system_sysfs_init(void)
acpi_table_attr_init(table_attr, table_header);
result =
- sysfs_create_bin_file(&tables_kobj,
+ sysfs_create_bin_file(tables_kobj,
&table_attr->attr);
if (result) {
kfree(table_attr);
@@ -163,6 +161,7 @@ static int acpi_system_sysfs_init(void)
&acpi_table_attr_list);
}
} while (!result);
+ kobject_uevent(tables_kobj, KOBJ_ADD);
return 0;
}
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c
index cbbd331..b630ee1 100644
--- a/drivers/acpi/utilities/utresrc.c
+++ b/drivers/acpi/utilities/utresrc.c
@@ -1,6 +1,6 @@
/*******************************************************************************
*
- * Module Name: utresrc - Resource managment utilities
+ * Module Name: utresrc - Resource management utilities
*
******************************************************************************/
generated by cgit v0.10.2 at 2024-09-24 04:09:07 (GMT)