Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 24 Jan 2008 16:12:38 +0000 (08:12 -0800)]
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Partially revert "Constify function pointer tables."

15 files changed:
arch/ppc/kernel/ppc_htab.c
drivers/acpi/blacklist.c
drivers/acpi/bus.c
drivers/acpi/ec.c
drivers/acpi/fan.c
drivers/acpi/osl.c
drivers/acpi/processor_throttling.c
drivers/firmware/dmi-id.c
drivers/firmware/dmi_scan.c
include/acpi/acpi_bus.h
include/linux/acpi.h
include/linux/dmi.h
kernel/lockdep.c
mm/hugetlb.c
mm/slab.c

index aa07b63..9ed36dd 100644 (file)
@@ -436,7 +436,6 @@ int proc_dol2crvec(ctl_table *table, int write, struct file *filp,
  */
 static ctl_table htab_ctl_table[]={
        {
-               .ctl_name       = KERN_PPC_L2CR,
                .procname       = "l2cr",
                .mode           = 0644,
                .proc_handler   = &proc_dol2crvec,
index 3ec110c..8809654 100644 (file)
@@ -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 */
index d7a115c..f4487c3 100644 (file)
@@ -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;
index 97dc161..987b967 100644 (file)
@@ -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");
index a5a5532..a6e149d 100644 (file)
@@ -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;
index e3a673a..e53fb51 100644 (file)
@@ -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
index 6742d7b..1685b40 100644 (file)
@@ -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;
index bc132d8..313c99c 100644 (file)
@@ -173,8 +173,6 @@ static struct device *dmi_dev;
        if (dmi_get_system_info(_field)) \
                sys_dmi_attributes[i++] = &sys_dmi_##_name##_attr.dev_attr.attr;
 
-extern int dmi_available;
-
 /* In a separate function to keep gcc 3.2 happy - do NOT merge this in
    dmi_id_init! */
 static void __init dmi_id_init_attr_table(void)
index 0cdadea..5e596a7 100644 (file)
@@ -470,3 +470,11 @@ int dmi_get_year(int field)
        return year;
 }
 
+/**
+ *     dmi_get_slot - return dmi_ident[slot]
+ *     @slot:  index into dmi_ident[]
+ */
+char *dmi_get_slot(int slot)
+{
+       return(dmi_ident[slot]);
+}
index 19c3ead..7b74b60 100644 (file)
@@ -168,7 +168,8 @@ struct acpi_device_flags {
        u32 power_manageable:1;
        u32 performance_manageable:1;
        u32 wake_capable:1;     /* Wakeup(_PRW) supported? */
-       u32 reserved:20;
+       u32 force_power_state:1;
+       u32 reserved:19;
 };
 
 /* File System */
index e3c16c9..63f2e6e 100644 (file)
@@ -40,6 +40,7 @@
 #include <acpi/acpi_drivers.h>
 #include <acpi/acpi_numa.h>
 #include <asm/acpi.h>
+#include <linux/dmi.h>
 
 
 #ifdef CONFIG_ACPI
@@ -192,7 +193,9 @@ extern int ec_transaction(u8 command,
 #endif /*CONFIG_ACPI_EC*/
 
 extern int acpi_blacklisted(void);
-extern void acpi_bios_year(char *s);
+#ifdef CONFIG_DMI
+extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
+#endif
 
 #ifdef CONFIG_ACPI_NUMA
 int acpi_get_pxm(acpi_handle handle);
@@ -226,5 +229,5 @@ static inline int acpi_boot_table_init(void)
        return 0;
 }
 
-#endif /* CONFIG_ACPI */
+#endif /* !CONFIG_ACPI */
 #endif /*_LINUX_ACPI_H*/
index 00fc7a9..5b42a65 100644 (file)
@@ -78,6 +78,8 @@ extern const struct dmi_device * dmi_find_device(int type, const char *name,
 extern void dmi_scan_machine(void);
 extern int dmi_get_year(int field);
 extern int dmi_name_in_vendors(const char *str);
+extern int dmi_available;
+extern char *dmi_get_slot(int slot);
 
 #else
 
@@ -87,6 +89,8 @@ static inline const struct dmi_device * dmi_find_device(int type, const char *na
        const struct dmi_device *from) { return NULL; }
 static inline int dmi_get_year(int year) { return 0; }
 static inline int dmi_name_in_vendors(const char *s) { return 0; }
+#define dmi_available 0
+static inline char *dmi_get_slot(int slot) { return NULL; }
 
 #endif
 
index 4335f12..e2c07ec 100644 (file)
@@ -2932,7 +2932,7 @@ static void zap_class(struct lock_class *class)
 
 }
 
-static inline int within(void *addr, void *start, unsigned long size)
+static inline int within(const void *addr, void *start, unsigned long size)
 {
        return addr >= start && addr < start + size;
 }
@@ -2955,9 +2955,12 @@ void lockdep_free_key_range(void *start, unsigned long size)
                head = classhash_table + i;
                if (list_empty(head))
                        continue;
-               list_for_each_entry_safe(class, next, head, hash_entry)
+               list_for_each_entry_safe(class, next, head, hash_entry) {
                        if (within(class->key, start, size))
                                zap_class(class);
+                       else if (within(class->name, start, size))
+                               zap_class(class);
+               }
        }
 
        if (locked)
index e0fda15..db861d8 100644 (file)
@@ -699,6 +699,11 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
                dst_pte = huge_pte_alloc(dst, addr);
                if (!dst_pte)
                        goto nomem;
+
+               /* If the pagetables are shared don't copy or take references */
+               if (dst_pte == src_pte)
+                       continue;
+
                spin_lock(&dst->page_table_lock);
                spin_lock(&src->page_table_lock);
                if (!pte_none(*src_pte)) {
index aebb9f6..b03b2e4 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1590,7 +1590,7 @@ void __init kmem_cache_init(void)
                /* Replace the static kmem_list3 structures for the boot cpu */
                init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], node);
 
-               for_each_node_state(nid, N_NORMAL_MEMORY) {
+               for_each_online_node(nid) {
                        init_list(malloc_sizes[INDEX_AC].cs_cachep,
                                  &initkmem_list3[SIZE_AC + nid], nid);
 
@@ -1968,7 +1968,7 @@ static void __init set_up_list3s(struct kmem_cache *cachep, int index)
 {
        int node;
 
-       for_each_node_state(node, N_NORMAL_MEMORY) {
+       for_each_online_node(node) {
                cachep->nodelists[node] = &initkmem_list3[index + node];
                cachep->nodelists[node]->next_reap = jiffies +
                    REAPTIMEOUT_LIST3 +
@@ -3815,7 +3815,7 @@ static int alloc_kmemlist(struct kmem_cache *cachep)
        struct array_cache *new_shared;
        struct array_cache **new_alien = NULL;
 
-       for_each_node_state(node, N_NORMAL_MEMORY) {
+       for_each_online_node(node) {
 
                 if (use_alien_caches) {
                         new_alien = alloc_alien_cache(node, cachep->limit);