diff options
Diffstat (limited to 'drivers/hwmon/coretemp.c')
| -rw-r--r-- | drivers/hwmon/coretemp.c | 47 |
1 files changed, 31 insertions, 16 deletions
diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 1fdef885341c..0d3141fbbc20 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -39,6 +39,7 @@ #include <linux/moduleparam.h> #include <asm/msr.h> #include <asm/processor.h> +#include <asm/cpu_device_id.h> #define DRVNAME "coretemp" @@ -57,8 +58,8 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius"); #define TOTAL_ATTRS (MAX_CORE_ATTRS + 1) #define MAX_CORE_DATA (NUM_REAL_CORES + BASE_SYSFS_ATTR_NO) -#define TO_PHYS_ID(cpu) cpu_data(cpu).phys_proc_id -#define TO_CORE_ID(cpu) cpu_data(cpu).cpu_core_id +#define TO_PHYS_ID(cpu) (cpu_data(cpu).phys_proc_id) +#define TO_CORE_ID(cpu) (cpu_data(cpu).cpu_core_id) #define TO_ATTR_NO(cpu) (TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO) #ifdef CONFIG_SMP @@ -190,7 +191,8 @@ static ssize_t show_temp(struct device *dev, return tdata->valid ? sprintf(buf, "%d\n", tdata->temp) : -EAGAIN; } -static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) +static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, + struct device *dev) { /* The 100C is default for both mobile and non mobile CPUs */ @@ -284,7 +286,8 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) return tjmax; } -static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) +static int __cpuinit get_tjmax(struct cpuinfo_x86 *c, u32 id, + struct device *dev) { int err; u32 eax, edx; @@ -323,7 +326,8 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) return adjust_tjmax(c, id, dev); } -static int create_name_attr(struct platform_data *pdata, struct device *dev) +static int __devinit create_name_attr(struct platform_data *pdata, + struct device *dev) { sysfs_attr_init(&pdata->name_attr.attr); pdata->name_attr.attr.name = "name"; @@ -332,8 +336,8 @@ static int create_name_attr(struct platform_data *pdata, struct device *dev) return device_create_file(dev, &pdata->name_attr); } -static int create_core_attrs(struct temp_data *tdata, struct device *dev, - int attr_no) +static int __cpuinit create_core_attrs(struct temp_data *tdata, + struct device *dev, int attr_no) { int err, i; static ssize_t (*const rd_ptr[TOTAL_ATTRS]) (struct device *dev, @@ -383,7 +387,7 @@ static int __cpuinit chk_ucode_version(unsigned int cpu) return 0; } -static struct platform_device *coretemp_get_pdev(unsigned int cpu) +static struct platform_device __cpuinit *coretemp_get_pdev(unsigned int cpu) { u16 phys_proc_id = TO_PHYS_ID(cpu); struct pdev_entry *p; @@ -400,7 +404,8 @@ static struct platform_device *coretemp_get_pdev(unsigned int cpu) return NULL; } -static struct temp_data *init_temp_data(unsigned int cpu, int pkg_flag) +static struct temp_data __cpuinit *init_temp_data(unsigned int cpu, + int pkg_flag) { struct temp_data *tdata; @@ -418,7 +423,7 @@ static struct temp_data *init_temp_data(unsigned int cpu, int pkg_flag) return tdata; } -static int create_core_data(struct platform_device *pdev, +static int __cpuinit create_core_data(struct platform_device *pdev, unsigned int cpu, int pkg_flag) { struct temp_data *tdata; @@ -489,7 +494,7 @@ exit_free: return err; } -static void coretemp_add_core(unsigned int cpu, int pkg_flag) +static void __cpuinit coretemp_add_core(unsigned int cpu, int pkg_flag) { struct platform_device *pdev = coretemp_get_pdev(cpu); int err; @@ -618,7 +623,7 @@ exit: return err; } -static void coretemp_device_remove(unsigned int cpu) +static void __cpuinit coretemp_device_remove(unsigned int cpu) { struct pdev_entry *p, *n; u16 phys_proc_id = TO_PHYS_ID(cpu); @@ -634,7 +639,7 @@ static void coretemp_device_remove(unsigned int cpu) mutex_unlock(&pdev_list_mutex); } -static bool is_any_core_online(struct platform_data *pdata) +static bool __cpuinit is_any_core_online(struct platform_data *pdata) { int i; @@ -755,13 +760,23 @@ static struct notifier_block coretemp_cpu_notifier __refdata = { .notifier_call = coretemp_cpu_callback, }; +static const struct x86_cpu_id coretemp_ids[] = { + { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_DTS }, + {} +}; +MODULE_DEVICE_TABLE(x86cpu, coretemp_ids); + static int __init coretemp_init(void) { int i, err = -ENODEV; - /* quick check if we run Intel */ - if (cpu_data(0).x86_vendor != X86_VENDOR_INTEL) - goto exit; + /* + * CPUID.06H.EAX[0] indicates whether the CPU has thermal + * sensors. We check this bit only, all the early CPUs + * without thermal sensors will be filtered out. + */ + if (!x86_match_cpu(coretemp_ids)) + return -ENODEV; err = platform_driver_register(&coretemp_driver); if (err) |