diff options
| -rw-r--r-- | Documentation/hwmon/k10temp | 60 | ||||
| -rw-r--r-- | drivers/hwmon/Kconfig | 20 | ||||
| -rw-r--r-- | drivers/hwmon/Makefile | 2 | ||||
| -rw-r--r-- | drivers/hwmon/k10temp.c | 197 | ||||
| -rw-r--r-- | drivers/hwmon/sht15.c | 6 | ||||
| -rw-r--r-- | drivers/hwmon/smsc47m1.c | 153 | ||||
| -rw-r--r-- | drivers/hwmon/via-cputemp.c | 356 | ||||
| -rw-r--r-- | drivers/hwmon/w83627hf.c | 2 |
8 files changed, 766 insertions, 30 deletions
diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp new file mode 100644 index 000000000000..a7a18d453a51 --- /dev/null +++ b/Documentation/hwmon/k10temp @@ -0,0 +1,60 @@ +Kernel driver k10temp +===================== + +Supported chips: +* AMD Family 10h processors: + Socket F: Quad-Core/Six-Core/Embedded Opteron + Socket AM2+: Opteron, Phenom (II) X3/X4 + Socket AM3: Quad-Core Opteron, Athlon/Phenom II X2/X3/X4, Sempron II + Socket S1G3: Athlon II, Sempron, Turion II +* AMD Family 11h processors: + Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) + + Prefix: 'k10temp' + Addresses scanned: PCI space + Datasheets: + BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h Processors: + http://support.amd.com/us/Processor_TechDocs/31116.pdf + BIOS and Kernel Developer's Guide (BKDG) for AMD Family 11h Processors: + http://support.amd.com/us/Processor_TechDocs/41256.pdf + Revision Guide for AMD Family 10h Processors: + http://support.amd.com/us/Processor_TechDocs/41322.pdf + Revision Guide for AMD Family 11h Processors: + http://support.amd.com/us/Processor_TechDocs/41788.pdf + AMD Family 11h Processor Power and Thermal Data Sheet for Notebooks: + http://support.amd.com/us/Processor_TechDocs/43373.pdf + AMD Family 10h Server and Workstation Processor Power and Thermal Data Sheet: + http://support.amd.com/us/Processor_TechDocs/43374.pdf + AMD Family 10h Desktop Processor Power and Thermal Data Sheet: + http://support.amd.com/us/Processor_TechDocs/43375.pdf + +Author: Clemens Ladisch <clemens@ladisch.de> + +Description +----------- + +This driver permits reading of the internal temperature sensor of AMD +Family 10h and 11h processors. + +All these processors have a sensor, but on older revisions of Family 10h +processors, the sensor may return inconsistent values (erratum 319). The +driver will refuse to load on these revisions unless you specify the +"force=1" module parameter. + +There is one temperature measurement value, available as temp1_input in +sysfs. It is measured in degrees Celsius with a resolution of 1/8th degree. +Please note that it is defined as a relative value; to quote the AMD manual: + + Tctl is the processor temperature control value, used by the platform to + control cooling systems. Tctl is a non-physical temperature on an + arbitrary scale measured in degrees. It does _not_ represent an actual + physical temperature like die or case temperature. Instead, it specifies + the processor temperature relative to the point at which the system must + supply the maximum cooling for the processor's specified maximum case + temperature and maximum thermal power dissipation. + +The maximum value for Tctl is available in the file temp1_max. + +If the BIOS has enabled hardware temperature control, the threshold at +which the processor will throttle itself to avoid damage is available in +temp1_crit and temp1_crit_hyst. diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index bf28945c610d..46c3c566307e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -228,6 +228,18 @@ config SENSORS_K8TEMP This driver can also be built as a module. If so, the module will be called k8temp. +config SENSORS_K10TEMP + tristate "AMD Phenom/Sempron/Turion/Opteron temperature sensor" + depends on X86 && PCI + help + If you say yes here you get support for the temperature + sensor(s) inside your CPU. Supported are later revisions of + the AMD Family 10h and all revisions of the AMD Family 11h + microarchitectures. + + This driver can also be built as a module. If so, the module + will be called k10temp. + config SENSORS_AMS tristate "Apple Motion Sensor driver" depends on PPC_PMAC && !PPC64 && INPUT && ((ADB_PMU && I2C = y) || (ADB_PMU && !I2C) || I2C) && EXPERIMENTAL @@ -810,6 +822,14 @@ config SENSORS_TMP421 This driver can also be built as a module. If so, the module will be called tmp421. +config SENSORS_VIA_CPUTEMP + tristate "VIA CPU temperature sensor" + depends on X86 + help + If you say yes here you get support for the temperature + sensor inside your CPU. Supported are all known variants of + the VIA C7 and Nano. + config SENSORS_VIA686A tristate "VIA686A" depends on PCI diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 4131e253f96a..450c8e894277 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -53,6 +53,7 @@ obj-$(CONFIG_SENSORS_IBMAEM) += ibmaem.o obj-$(CONFIG_SENSORS_IBMPEX) += ibmpex.o obj-$(CONFIG_SENSORS_IT87) += it87.o obj-$(CONFIG_SENSORS_K8TEMP) += k8temp.o +obj-$(CONFIG_SENSORS_K10TEMP) += k10temp.o obj-$(CONFIG_SENSORS_LIS3LV02D) += lis3lv02d.o hp_accel.o obj-$(CONFIG_SENSORS_LIS3_SPI) += lis3lv02d.o lis3lv02d_spi.o obj-$(CONFIG_SENSORS_LIS3_I2C) += lis3lv02d.o lis3lv02d_i2c.o @@ -88,6 +89,7 @@ obj-$(CONFIG_SENSORS_SMSC47M192)+= smsc47m192.o obj-$(CONFIG_SENSORS_THMC50) += thmc50.o obj-$(CONFIG_SENSORS_TMP401) += tmp401.o obj-$(CONFIG_SENSORS_TMP421) += tmp421.o +obj-$(CONFIG_SENSORS_VIA_CPUTEMP)+= via-cputemp.o obj-$(CONFIG_SENSORS_VIA686A) += via686a.o obj-$(CONFIG_SENSORS_VT1211) += vt1211.o obj-$(CONFIG_SENSORS_VT8231) += vt8231.o diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c new file mode 100644 index 000000000000..d8a26d16d948 --- /dev/null +++ b/drivers/hwmon/k10temp.c @@ -0,0 +1,197 @@ +/* + * k10temp.c - AMD Family 10h/11h processor hardware monitoring + * + * Copyright (c) 2009 Clemens Ladisch <clemens@ladisch.de> + * + * + * This driver is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License; either + * version 2 of the License, or (at your option) any later version. + * + * This driver is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this driver; if not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/err.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <asm/processor.h> + +MODULE_DESCRIPTION("AMD Family 10h/11h CPU core temperature monitor"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL"); + +static bool force; +module_param(force, bool, 0444); +MODULE_PARM_DESC(force, "force loading on processors with erratum 319"); + +#define REG_HARDWARE_THERMAL_CONTROL 0x64 +#define HTC_ENABLE 0x00000001 + +#define REG_REPORTED_TEMPERATURE 0xa4 + +#define REG_NORTHBRIDGE_CAPABILITIES 0xe8 +#define NB_CAP_HTC 0x00000400 + +static ssize_t show_temp(struct device *dev, + struct device_attribute *attr, char *buf) +{ + u32 regval; + + pci_read_config_dword(to_pci_dev(dev), + REG_REPORTED_TEMPERATURE, ®val); + return sprintf(buf, "%u\n", (regval >> 21) * 125); +} + +static ssize_t show_temp_max(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", 70 * 1000); +} + +static ssize_t show_temp_crit(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + int show_hyst = attr->index; + u32 regval; + int value; + + pci_read_config_dword(to_pci_dev(dev), + REG_HARDWARE_THERMAL_CONTROL, ®val); + value = ((regval >> 16) & 0x7f) * 500 + 52000; + if (show_hyst) + value -= ((regval >> 24) & 0xf) * 500; + return sprintf(buf, "%d\n", value); +} + +static ssize_t show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "k10temp\n"); +} + +static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL); +static DEVICE_ATTR(temp1_max, S_IRUGO, show_temp_max, NULL); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp_crit, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_crit, NULL, 1); +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +static bool __devinit has_erratum_319(void) +{ + /* + * Erratum 319: The thermal sensor of older Family 10h processors + * (B steppings) may be unreliable. + */ + return boot_cpu_data.x86 == 0x10 && boot_cpu_data.x86_model <= 2; +} + +static int __devinit k10temp_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct device *hwmon_dev; + u32 reg_caps, reg_htc; + int err; + + if (has_erratum_319() && !force) { + dev_err(&pdev->dev, + "unreliable CPU thermal sensor; monitoring disabled\n"); + err = -ENODEV; + goto exit; + } + + err = device_create_file(&pdev->dev, &dev_attr_temp1_input); + if (err) + goto exit; + err = device_create_file(&pdev->dev, &dev_attr_temp1_max); + if (err) + goto exit_remove; + + pci_read_config_dword(pdev, REG_NORTHBRIDGE_CAPABILITIES, ®_caps); + pci_read_config_dword(pdev, REG_HARDWARE_THERMAL_CONTROL, ®_htc); + if ((reg_caps & NB_CAP_HTC) && (reg_htc & HTC_ENABLE)) { + err = device_create_file(&pdev->dev, + &sensor_dev_attr_temp1_crit.dev_attr); + if (err) + goto exit_remove; + err = device_create_file(&pdev->dev, + &sensor_dev_attr_temp1_crit_hyst.dev_attr); + if (err) + goto exit_remove; + } + + err = device_create_file(&pdev->dev, &dev_attr_name); + if (err) + goto exit_remove; + + hwmon_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(hwmon_dev)) { + err = PTR_ERR(hwmon_dev); + goto exit_remove; + } + dev_set_drvdata(&pdev->dev, hwmon_dev); + + if (has_erratum_319() && force) + dev_warn(&pdev->dev, + "unreliable CPU thermal sensor; check erratum 319\n"); + return 0; + +exit_remove: + device_remove_file(&pdev->dev, &dev_attr_name); + device_remove_file(&pdev->dev, &dev_attr_temp1_input); + device_remove_file(&pdev->dev, &dev_attr_temp1_max); + device_remove_file(&pdev->dev, + &sensor_dev_attr_temp1_crit.dev_attr); + device_remove_file(&pdev->dev, + &sensor_dev_attr_temp1_crit_hyst.dev_attr); +exit: + return err; +} + +static void __devexit k10temp_remove(struct pci_dev *pdev) +{ + hwmon_device_unregister(dev_get_drvdata(&pdev->dev)); + device_remove_file(&pdev->dev, &dev_attr_name); + device_remove_file(&pdev->dev, &dev_attr_temp1_input); + device_remove_file(&pdev->dev, &dev_attr_temp1_max); + device_remove_file(&pdev->dev, + &sensor_dev_attr_temp1_crit.dev_attr); + device_remove_file(&pdev->dev, + &sensor_dev_attr_temp1_crit_hyst.dev_attr); + dev_set_drvdata(&pdev->dev, NULL); +} + +static struct pci_device_id k10temp_id_table[] = { + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) }, + { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) }, + {} +}; +MODULE_DEVICE_TABLE(pci, k10temp_id_table); + +static struct pci_driver k10temp_driver = { + .name = "k10temp", + .id_table = k10temp_id_table, + .probe = k10temp_probe, + .remove = __devexit_p(k10temp_remove), +}; + +static int __init k10temp_init(void) +{ + return pci_register_driver(&k10temp_driver); +} + +static void __exit k10temp_exit(void) +{ + pci_unregister_driver(&k10temp_driver); +} + +module_init(k10temp_init) +module_exit(k10temp_exit) diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c index ebe38b680ee3..864a371f6eb9 100644 --- a/drivers/hwmon/sht15.c +++ b/drivers/hwmon/sht15.c @@ -305,7 +305,7 @@ static inline int sht15_calc_temp(struct sht15_data *data) int d1 = 0; int i; - for (i = 1; i < ARRAY_SIZE(temppoints) - 1; i++) + for (i = 1; i < ARRAY_SIZE(temppoints); i++) /* Find pointer to interpolate */ if (data->supply_uV > temppoints[i - 1].vdd) { d1 = (data->supply_uV/1000 - temppoints[i - 1].vdd) @@ -332,12 +332,12 @@ static inline int sht15_calc_humid(struct sht15_data *data) const int c1 = -4; const int c2 = 40500; /* x 10 ^ -6 */ - const int c3 = 2800; /* x10 ^ -9 */ + const int c3 = -2800; /* x10 ^ -9 */ RHlinear = c1*1000 + c2 * data->val_humid/1000 + (data->val_humid * data->val_humid * c3)/1000000; - return (temp - 25000) * (10000 + 800 * data->val_humid) + return (temp - 25000) * (10000 + 80 * data->val_humid) / 1000000 + RHlinear; } diff --git a/drivers/hwmon/smsc47m1.c b/drivers/hwmon/smsc47m1.c index 8ad50fdba00d..9ca97818bd4b 100644 --- a/drivers/hwmon/smsc47m1.c +++ b/drivers/hwmon/smsc47m1.c @@ -136,11 +136,11 @@ struct smsc47m1_data { struct smsc47m1_sio_data { enum chips type; + u8 activate; /* Remember initial device state */ }; -static int smsc47m1_probe(struct platform_device *pdev); -static int __devexit smsc47m1_remove(struct platform_device *pdev); +static int __exit smsc47m1_remove(struct platform_device *pdev); static struct smsc47m1_data *smsc47m1_update_device(struct device *dev, int init); @@ -160,8 +160,7 @@ static struct platform_driver smsc47m1_driver = { .owner = THIS_MODULE, .name = DRVNAME, }, - .probe = smsc47m1_probe, - .remove = __devexit_p(smsc47m1_remove), + .remove = __exit_p(smsc47m1_remove), }; static ssize_t get_fan(struct device *dev, struct device_attribute @@ -470,24 +469,126 @@ static int __init smsc47m1_find(unsigned short *addr, superio_select(); *addr = (superio_inb(SUPERIO_REG_BASE) << 8) | superio_inb(SUPERIO_REG_BASE + 1); - val = superio_inb(SUPERIO_REG_ACT); - if (*addr == 0 || (val & 0x01) == 0) { - pr_info(DRVNAME ": Device is disabled, will not use\n"); + if (*addr == 0) { + pr_info(DRVNAME ": Device address not set, will not use\n"); superio_exit(); return -ENODEV; } + /* Enable only if address is set (needed at least on the + * Compaq Presario S4000NX) */ + sio_data->activate = superio_inb(SUPERIO_REG_ACT); + if ((sio_data->activate & 0x01) == 0) { + pr_info(DRVNAME ": Enabling device\n"); + superio_outb(SUPERIO_REG_ACT, sio_data->activate | 0x01); + } + superio_exit(); return 0; } -static int __devinit smsc47m1_probe(struct platform_device *pdev) +/* Restore device to its initial state */ +static void __init smsc47m1_restore(const struct smsc47m1_sio_data *sio_data) +{ + if ((sio_data->activate & 0x01) == 0) { + superio_enter(); + superio_select(); + + pr_info(DRVNAME ": Disabling device\n"); + superio_outb(SUPERIO_REG_ACT, sio_data->activate); + + superio_exit(); + } +} + +#define CHECK 1 +#define REQUEST 2 +#define RELEASE 3 + +/* + * This function can be used to: + * - test for resource conflicts with ACPI + * - request the resources + * - release the resources + * We only allocate the I/O ports we really need, to minimize the risk of + * conflicts with ACPI or with other drivers. + */ +static int smsc47m1_handle_resources(unsigned short address, enum chips type, + int action, struct device *dev) +{ + static const u8 ports_m1[] = { + /* register, region length */ + 0x04, 1, + 0x33, 4, + 0x56, 7, + }; + + static const u8 ports_m2[] = { + /* register, region length */ + 0x04, 1, + 0x09, 1, + 0x2c, 2, + 0x35, 4, + 0x56, 7, + 0x69, 4, + }; + + int i, ports_size, err; + const u8 *ports; + + switch (type) { + case smsc47m1: + default: + ports = ports_m1; + ports_size = ARRAY_SIZE(ports_m1); + break; + case smsc47m2: + ports = ports_m2; + ports_size = ARRAY_SIZE(ports_m2); + break; + } + + for (i = 0; i + 1 < ports_size; i += 2) { + unsigned short start = address + ports[i]; + unsigned short len = ports[i + 1]; + + switch (action) { + case CHECK: + /* Only check for conflicts */ + err = acpi_check_region(start, len, DRVNAME); + if (err) + return err; + break; + case REQUEST: + /* Request the resources */ + if (!request_region(start, len, DRVNAME)) { + dev_err(dev, "Region 0x%hx-0x%hx already in " + "use!\n", start, start + len); + + /* Undo all requests */ + for (i -= 2; i >= 0; i -= 2) + release_region(address + ports[i], + ports[i + 1]); + return -EBUSY; + } + break; + case RELEASE: + /* Release the resources */ + release_region(start, len); + break; + } + } + + return 0; +} + +static int __init smsc47m1_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct smsc47m1_sio_data *sio_data = dev->platform_data; struct smsc47m1_data *data; struct resource *res; - int err = 0; + int err; int fan1, fan2, fan3, pwm1, pwm2, pwm3; static const char *names[] = { @@ -496,12 +597,10 @@ static int __devinit smsc47m1_probe(struct platform_device *pdev) }; res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!request_region(res->start, SMSC_EXTENT, DRVNAME)) { - dev_err(dev, "Region 0x%lx-0x%lx already in use!\n", - (unsigned long)res->start, - (unsigned long)res->end); - return -EBUSY; - } + err = smsc47m1_handle_resources(res->start, sio_data->type, + REQUEST, dev); + if (err < 0) + return err; if (!(data = kzalloc(sizeof(struct smsc47m1_data), GFP_KERNEL))) { err = -ENOMEM; @@ -637,11 +736,11 @@ error_free: platform_set_drvdata(pdev, NULL); kfree(data); error_release: - release_region(res->start, SMSC_EXTENT); + smsc47m1_handle_resources(res->start, sio_data->type, RELEASE, dev); return err; } -static int __devexit smsc47m1_remove(struct platform_device *pdev) +static int __exit smsc47m1_remove(struct platform_device *pdev) { struct smsc47m1_data *data = platform_get_drvdata(pdev); struct resource *res; @@ -650,7 +749,7 @@ static int __devexit smsc47m1_remove(struct platform_device *pdev) sysfs_remove_group(&pdev->dev.kobj, &smsc47m1_group); res = platform_get_resource(pdev, IORESOURCE_IO, 0); - release_region(res->start, SMSC_EXTENT); + smsc47m1_handle_resources(res->start, data->type, RELEASE, &pdev->dev); platform_set_drvdata(pdev, NULL); kfree(data); @@ -717,7 +816,7 @@ static int __init smsc47m1_device_add(unsigned short address, }; int err; - err = acpi_check_resource_conflict(&res); + err = smsc47m1_handle_resources(address, sio_data->type, CHECK, NULL); if (err) goto exit; @@ -766,27 +865,29 @@ static int __init sm_smsc47m1_init(void) if (smsc47m1_find(&address, &sio_data)) return -ENODEV; - err = platform_driver_register(&smsc47m1_driver); + /* Sets global pdev as a side effect */ + err = smsc47m1_device_add(address, &sio_data); if (err) goto exit; - /* Sets global pdev as a side effect */ - err = smsc47m1_device_add(address, &sio_data); + err = platform_driver_probe(&smsc47m1_driver, smsc47m1_probe); if (err) - goto exit_driver; + goto exit_device; return 0; -exit_driver: - platform_driver_unregister(&smsc47m1_driver); +exit_device: + platform_device_unregister(pdev); + smsc47m1_restore(&sio_data); exit: return err; } static void __exit sm_smsc47m1_exit(void) { - platform_device_unregister(pdev); platform_driver_unregister(&smsc47m1_driver); + smsc47m1_restore(pdev->dev.platform_data); + platform_device_unregister(pdev); } MODULE_AUTHOR("Mark D. Studebaker <mdsxyz123@yahoo.com>"); diff --git a/drivers/hwmon/via-cputemp.c b/drivers/hwmon/via-cputemp.c new file mode 100644 index 000000000000..7442cf754856 --- /dev/null +++ b/drivers/hwmon/via-cputemp.c @@ -0,0 +1,356 @@ +/* + * via-cputemp.c - Driver for VIA CPU core temperature monitoring + * Copyright (C) 2009 VIA Technologies, Inc. + * + * based on existing coretemp.c, which is + * + * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301 USA. + */ + +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/hwmon.h> +#include <linux/sysfs.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/platform_device.h> +#include <linux/cpu.h> +#include <asm/msr.h> +#include <asm/processor.h> + +#define DRVNAME "via_cputemp" + +enum { SHOW_TEMP, SHOW_LABEL, SHOW_NAME } SHOW; + +/* + * Functions declaration + */ + +struct via_cputemp_data { + struct device *hwmon_dev; + const char *name; + u32 id; + u32 msr; +}; + +/* + * Sysfs stuff + */ + +static ssize_t show_name(struct device *dev, struct device_attribute + *devattr, char *buf) +{ + int ret; + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct via_cputemp_data *data = dev_get_drvdata(dev); + + if (attr->index == SHOW_NAME) + ret = sprintf(buf, "%s\n", data->name); + else /* show label */ + ret = sprintf(buf, "Core %d\n", data->id); + return ret; +} + +static ssize_t show_temp(struct device *dev, + struct device_attribute *devattr, char *buf) +{ + struct via_cputemp_data *data = dev_get_drvdata(dev); + u32 eax, edx; + int err; + + err = rdmsr_safe_on_cpu(data->id, data->msr, &eax, &edx); + if (err) + return -EAGAIN; + + return sprintf(buf, "%lu\n", ((unsigned long)eax & 0xffffff) * 1000); +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, + SHOW_TEMP); +static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, show_name, NULL, SHOW_LABEL); +static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, SHOW_NAME); + +static struct attribute *via_cputemp_attributes[] = { + &sensor_dev_attr_name.dev_attr.attr, + &sensor_dev_attr_temp1_label.dev_attr.attr, + &sensor_dev_attr_temp1_input.dev_attr.attr, + NULL +}; + +static const struct attribute_group via_cputemp_group = { + .attrs = via_cputemp_attributes, +}; + +static int __devinit via_cputemp_probe(struct platform_device *pdev) +{ + struct via_cputemp_data *data; + struct cpuinfo_x86 *c = &cpu_data(pdev->id); + int err; + u32 eax, edx; + + data = kzalloc(sizeof(struct via_cputemp_data), GFP_KERNEL); + if (!data) { + err = -ENOMEM; + dev_err(&pdev->dev, "Out of memory\n"); + goto exit; + } + + data->id = pdev->id; + data->name = "via_cputemp"; + + switch (c->x86_model) { + case 0xA: + /* C7 A */ + case 0xD: + /* C7 D */ + data->msr = 0x1169; + break; + case 0xF: + /* Nano */ + data->msr = 0x1423; + break; + default: + err = -ENODEV; + goto exit_free; + } + + /* test if we can access the TEMPERATURE MSR */ + err = rdmsr_safe_on_cpu(data->id, data->msr, &eax, &edx); + if (err) { + dev_err(&pdev->dev, + "Unable to access TEMPERATURE MSR, giving up\n"); + goto exit_free; + } + + platform_set_drvdata(pdev, data); + + err = sysfs_create_group(&pdev->dev.kobj, &via_cputemp_group); + if (err) + goto exit_free; + + data->hwmon_dev = hwmon_device_register(&pdev->dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + dev_err(&pdev->dev, "Class registration failed (%d)\n", + err); + goto exit_remove; + } + + return 0; + +exit_remove: + sysfs_remove_group(&pdev->dev.kobj, &via_cputemp_group); +exit_free: + platform_set_drvdata(pdev, NULL); + kfree(data); +exit: + return err; +} + +static int __devexit via_cputemp_remove(struct platform_device *pdev) +{ + struct via_cputemp_data *data = platform_get_drvdata(pdev); + + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&pdev->dev.kobj, &via_cputemp_group); + platform_set_drvdata(pdev, NULL); + kfree(data); + return 0; +} + +static struct platform_driver via_cputemp_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + }, + .probe = via_cputemp_probe, + .remove = __devexit_p(via_cputemp_remove), +}; + +struct pdev_entry { + struct list_head list; + struct platform_device *pdev; + unsigned int cpu; +}; + +static LIST_HEAD(pdev_list); +static DEFINE_MUTEX(pdev_list_mutex); + +static int __cpuinit via_cputemp_device_add(unsigned int cpu) +{ + int err; + struct platform_device *pdev; + struct pdev_entry *pdev_entry; + + pdev = platform_device_alloc(DRVNAME, cpu); + if (!pdev) { + err = -ENOMEM; + printk(KERN_ERR DRVNAME ": Device allocation failed\n"); + goto exit; + } + + pdev_entry = kzalloc(sizeof(struct pdev_entry), GFP_KERNEL); + if (!pdev_entry) { + err = -ENOMEM; + goto exit_device_put; + } + + err = platform_device_add(pdev); + if (err) { + printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", + err); + goto exit_device_free; + } + + pdev_entry->pdev = pdev; + pdev_entry->cpu = cpu; + mutex_lock(&pdev_list_mutex); + list_add_tail(&pdev_entry->list, &pdev_list); + mutex_unlock(&pdev_list_mutex); + + return 0; + +exit_device_free: + kfree(pdev_entry); +exit_device_put: + platform_device_put(pdev); +exit: + return err; +} + +#ifdef CONFIG_HOTPLUG_CPU +static void via_cputemp_device_remove(unsigned int cpu) +{ + struct pdev_entry *p, *n; + mutex_lock(&pdev_list_mutex); + list_for_each_entry_safe(p, n, &pdev_list, list) { + if (p->cpu == cpu) { + platform_device_unregister(p->pdev); + list_del(&p->list); + kfree(p); + } + } + mutex_unlock(&pdev_list_mutex); +} + +static int __cpuinit via_cputemp_cpu_callback(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + unsigned int cpu = (unsigned long) hcpu; + + switch (action) { + case CPU_ONLINE: + case CPU_DOWN_FAILED: + via_cputemp_device_add(cpu); + break; + case CPU_DOWN_PREPARE: + via_cputemp_device_remove(cpu); + break; + } + return NOTIFY_OK; +} + +static struct notifier_block via_cputemp_cpu_notifier __refdata = { + .notifier_call = via_cputemp_cpu_callback, +}; +#endif /* !CONFIG_HOTPLUG_CPU */ + +static int __init via_cputemp_init(void) +{ + int i, err; + struct pdev_entry *p, *n; + + if (cpu_data(0).x86_vendor != X86_VENDOR_CENTAUR) { + printk(KERN_DEBUG DRVNAME ": Not a VIA CPU\n"); + err = -ENODEV; + goto exit; + } + + err = platform_driver_register(&via_cputemp_driver); + if (err) + goto exit; + + for_each_online_cpu(i) { + struct cpuinfo_x86 *c = &cpu_data(i); + + if (c->x86 != 6) + continue; + + if (c->x86_model < 0x0a) + continue; + + if (c->x86_model > 0x0f) { + printk(KERN_WARNING DRVNAME ": Unknown CPU " + "model 0x%x\n", c->x86_model); + continue; + } + + err = via_cputemp_device_add(i); + if (err) + goto exit_devices_unreg; + } + if (list_empty(&pdev_list)) { + err = -ENODEV; + goto exit_driver_unreg; + } + +#ifdef CONFIG_HOTPLUG_CPU + register_hotcpu_notifier(&via_cputemp_cpu_notifier); +#endif + return 0; + +exit_devices_unreg: + mutex_lock(&pdev_list_mutex); + list_for_each_entry_safe(p, n, &pdev_list, list) { + platform_device_unregister(p->pdev); + list_del(&p->list); + kfree(p); + } + mutex_unlock(&pdev_list_mutex); +exit_driver_unreg: + platform_driver_unregister(&via_cputemp_driver); +exit: + return err; +} + +static void __exit via_cputemp_exit(void) +{ + struct pdev_entry *p, *n; +#ifdef CONFIG_HOTPLUG_CPU + unregister_hotcpu_notifier(&via_cputemp_cpu_notifier); +#endif + mutex_lock(&pdev_list_mutex); + list_for_each_entry_safe(p, n, &pdev_list, list) { + platform_device_unregister(p->pdev); + list_del(&p->list); + kfree(p); + } + mutex_unlock(&pdev_list_mutex); + platform_driver_unregister(&via_cputemp_driver); +} + +MODULE_AUTHOR("Harald Welte <HaraldWelte@viatech.com>"); +MODULE_DESCRIPTION("VIA CPU temperature monitor"); +MODULE_LICENSE("GPL"); + +module_init(via_cputemp_init) +module_exit(via_cputemp_exit) diff --git a/drivers/hwmon/w83627hf.c b/drivers/hwmon/w83627hf.c index b257c7223733..38e280523071 100644 --- a/drivers/hwmon/w83627hf.c +++ b/drivers/hwmon/w83627hf.c @@ -1135,6 +1135,7 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr, "W83687THF", }; + sio_data->sioaddr = sioaddr; superio_enter(sio_data); val = force_id ? force_id : superio_inb(sio_data, DEVID); switch (val) { @@ -1177,7 +1178,6 @@ static int __init w83627hf_find(int sioaddr, unsigned short *addr, } err = 0; - sio_data->sioaddr = sioaddr; pr_info(DRVNAME ": Found %s chip at %#x\n", names[sio_data->type], *addr); 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