diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/hwmon/k10temp.c')
| -rw-r--r-- | ANDROID_3.4.5/drivers/hwmon/k10temp.c | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/ANDROID_3.4.5/drivers/hwmon/k10temp.c b/ANDROID_3.4.5/drivers/hwmon/k10temp.c deleted file mode 100644 index 307bb325..00000000 --- a/ANDROID_3.4.5/drivers/hwmon/k10temp.c +++ /dev/null @@ -1,239 +0,0 @@ -/* - * k10temp.c - AMD Family 10h/11h/12h/14h/15h 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+ 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"); - -/* PCI-IDs for Northbridge devices not used anywhere else */ -#define PCI_DEVICE_ID_AMD_15H_M10H_NB_F3 0x1403 - -/* CPUID function 0x80000001, ebx */ -#define CPUID_PKGTYPE_MASK 0xf0000000 -#define CPUID_PKGTYPE_F 0x00000000 -#define CPUID_PKGTYPE_AM2R2_AM3 0x10000000 - -/* DRAM controller (PCI function 2) */ -#define REG_DCT0_CONFIG_HIGH 0x094 -#define DDR3_MODE 0x00000100 - -/* miscellaneous (PCI function 3) */ -#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(struct pci_dev *pdev) -{ - u32 pkg_type, reg_dram_cfg; - - if (boot_cpu_data.x86 != 0x10) - return false; - - /* - * Erratum 319: The thermal sensor of Socket F/AM2+ processors - * may be unreliable. - */ - pkg_type = cpuid_ebx(0x80000001) & CPUID_PKGTYPE_MASK; - if (pkg_type == CPUID_PKGTYPE_F) - return true; - if (pkg_type != CPUID_PKGTYPE_AM2R2_AM3) - return false; - - /* DDR3 memory implies socket AM3, which is good */ - pci_bus_read_config_dword(pdev->bus, - PCI_DEVFN(PCI_SLOT(pdev->devfn), 2), - REG_DCT0_CONFIG_HIGH, ®_dram_cfg); - if (reg_dram_cfg & DDR3_MODE) - return false; - - /* - * Unfortunately it is possible to run a socket AM3 CPU with DDR2 - * memory. We blacklist all the cores which do exist in socket AM2+ - * format. It still isn't perfect, as RB-C2 cores exist in both AM2+ - * and AM3 formats, but that's the best we can do. - */ - return boot_cpu_data.x86_model < 4 || - (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask <= 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 unreliable = has_erratum_319(pdev); - int err; - - if (unreliable && !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; - } - pci_set_drvdata(pdev, hwmon_dev); - - if (unreliable && 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(pci_get_drvdata(pdev)); - 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); - pci_set_drvdata(pdev, NULL); -} - -static DEFINE_PCI_DEVICE_TABLE(k10temp_id_table) = { - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_11H_NB_MISC) }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M10H_NB_F3) }, - {} -}; -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) |