diff options
Diffstat (limited to 'drivers/hwmon/ibmpowernv.c')
| -rw-r--r-- | drivers/hwmon/ibmpowernv.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpowernv.c index 1180ce631377..7108daf056b0 100644 --- a/drivers/hwmon/ibmpowernv.c +++ b/drivers/hwmon/ibmpowernv.c @@ -30,6 +30,7 @@ #include <linux/platform_device.h> #include <asm/opal.h> #include <linux/err.h> +#include <asm/cputhreads.h> #define MAX_ATTR_LEN 32 #define MAX_LABEL_LEN 64 @@ -112,13 +113,53 @@ static ssize_t show_label(struct device *dev, struct device_attribute *devattr, return sprintf(buf, "%s\n", sdata->label); } +static int __init get_logical_cpu(int hwcpu) +{ + int cpu; + + for_each_possible_cpu(cpu) + if (get_hard_smp_processor_id(cpu) == hwcpu) + return cpu; + + return -ENOENT; +} + static void __init make_sensor_label(struct device_node *np, struct sensor_data *sdata, const char *label) { + u32 id; size_t n; n = snprintf(sdata->label, sizeof(sdata->label), "%s", label); + + /* + * Core temp pretty print + */ + if (!of_property_read_u32(np, "ibm,pir", &id)) { + int cpuid = get_logical_cpu(id); + + if (cpuid >= 0) + /* + * The digital thermal sensors are associated + * with a core. Let's print out the range of + * cpu ids corresponding to the hardware + * threads of the core. + */ + n += snprintf(sdata->label + n, + sizeof(sdata->label) - n, " %d-%d", + cpuid, cpuid + threads_per_core - 1); + else + n += snprintf(sdata->label + n, + sizeof(sdata->label) - n, " phy%d", id); + } + + /* + * Membuffer pretty print + */ + if (!of_property_read_u32(np, "ibm,chip-id", &id)) + n += snprintf(sdata->label + n, sizeof(sdata->label) - n, + " %d", id & 0xffff); } static int get_sensor_index_attr(const char *name, u32 *index, char *attr) |