diff options
Diffstat (limited to 'drivers/thermal/intel/x86_pkg_temp_thermal.c')
| -rw-r--r-- | drivers/thermal/intel/x86_pkg_temp_thermal.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/drivers/thermal/intel/x86_pkg_temp_thermal.c b/drivers/thermal/intel/x86_pkg_temp_thermal.c index ddb4a973c698..a0e234fce71a 100644 --- a/drivers/thermal/intel/x86_pkg_temp_thermal.c +++ b/drivers/thermal/intel/x86_pkg_temp_thermal.c @@ -17,8 +17,10 @@ #include <linux/pm.h> #include <linux/thermal.h> #include <linux/debugfs.h> + #include <asm/cpu_device_id.h> -#include <asm/mce.h> + +#include "thermal_interrupt.h" /* * Rate control delay: Idea is to introduce denounce effect @@ -63,7 +65,7 @@ static int max_id __read_mostly; /* Array of zone pointers */ static struct zone_device **zones; /* Serializes interrupt notification, work and hotplug */ -static DEFINE_SPINLOCK(pkg_temp_lock); +static DEFINE_RAW_SPINLOCK(pkg_temp_lock); /* Protects zone operation in the work function against hotplug removal */ static DEFINE_MUTEX(thermal_zone_mutex); @@ -103,7 +105,7 @@ static struct zone_device *pkg_temp_thermal_get_dev(unsigned int cpu) } /* -* tj-max is is interesting because threshold is set relative to this +* tj-max is interesting because threshold is set relative to this * temperature. */ static int get_tj_max(int cpu, u32 *tj_max) @@ -164,7 +166,7 @@ static int sys_get_trip_temp(struct thermal_zone_device *tzd, if (thres_reg_value) *temp = zonedev->tj_max - thres_reg_value * 1000; else - *temp = 0; + *temp = THERMAL_TEMP_INVALID; pr_debug("sys_get_trip_temp %d\n", *temp); return 0; @@ -266,12 +268,12 @@ static void pkg_temp_thermal_threshold_work_fn(struct work_struct *work) u64 msr_val, wr_val; mutex_lock(&thermal_zone_mutex); - spin_lock_irq(&pkg_temp_lock); + raw_spin_lock_irq(&pkg_temp_lock); ++pkg_work_cnt; zonedev = pkg_temp_thermal_get_dev(cpu); if (!zonedev) { - spin_unlock_irq(&pkg_temp_lock); + raw_spin_unlock_irq(&pkg_temp_lock); mutex_unlock(&thermal_zone_mutex); return; } @@ -285,7 +287,7 @@ static void pkg_temp_thermal_threshold_work_fn(struct work_struct *work) } enable_pkg_thres_interrupt(); - spin_unlock_irq(&pkg_temp_lock); + raw_spin_unlock_irq(&pkg_temp_lock); /* * If tzone is not NULL, then thermal_zone_mutex will prevent the @@ -310,7 +312,7 @@ static int pkg_thermal_notify(u64 msr_val) struct zone_device *zonedev; unsigned long flags; - spin_lock_irqsave(&pkg_temp_lock, flags); + raw_spin_lock_irqsave(&pkg_temp_lock, flags); ++pkg_interrupt_cnt; disable_pkg_thres_interrupt(); @@ -322,7 +324,7 @@ static int pkg_thermal_notify(u64 msr_val) pkg_thermal_schedule_work(zonedev->cpu, &zonedev->work); } - spin_unlock_irqrestore(&pkg_temp_lock, flags); + raw_spin_unlock_irqrestore(&pkg_temp_lock, flags); return 0; } @@ -363,14 +365,20 @@ static int pkg_temp_thermal_device_add(unsigned int cpu) kfree(zonedev); return err; } + err = thermal_zone_device_enable(zonedev->tzone); + if (err) { + thermal_zone_device_unregister(zonedev->tzone); + kfree(zonedev); + return err; + } /* Store MSR value for package thermal interrupt, to restore at exit */ rdmsr(MSR_IA32_PACKAGE_THERM_INTERRUPT, zonedev->msr_pkg_therm_low, zonedev->msr_pkg_therm_high); cpumask_set_cpu(cpu, &zonedev->cpumask); - spin_lock_irq(&pkg_temp_lock); + raw_spin_lock_irq(&pkg_temp_lock); zones[id] = zonedev; - spin_unlock_irq(&pkg_temp_lock); + raw_spin_unlock_irq(&pkg_temp_lock); return 0; } @@ -407,7 +415,7 @@ static int pkg_thermal_cpu_offline(unsigned int cpu) } /* Protect against work and interrupts */ - spin_lock_irq(&pkg_temp_lock); + raw_spin_lock_irq(&pkg_temp_lock); /* * Check whether this cpu was the current target and store the new @@ -439,9 +447,9 @@ static int pkg_thermal_cpu_offline(unsigned int cpu) * To cancel the work we need to drop the lock, otherwise * we might deadlock if the work needs to be flushed. */ - spin_unlock_irq(&pkg_temp_lock); + raw_spin_unlock_irq(&pkg_temp_lock); cancel_delayed_work_sync(&zonedev->work); - spin_lock_irq(&pkg_temp_lock); + raw_spin_lock_irq(&pkg_temp_lock); /* * If this is not the last cpu in the package and the work * did not run after we dropped the lock above, then we @@ -452,7 +460,7 @@ static int pkg_thermal_cpu_offline(unsigned int cpu) pkg_thermal_schedule_work(target, &zonedev->work); } - spin_unlock_irq(&pkg_temp_lock); + raw_spin_unlock_irq(&pkg_temp_lock); /* Final cleanup if this is the last cpu */ if (lastcpu) @@ -478,7 +486,7 @@ static int pkg_thermal_cpu_online(unsigned int cpu) } static const struct x86_cpu_id __initconst pkg_temp_thermal_ids[] = { - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_PTS }, + X86_MATCH_VENDOR_FEATURE(INTEL, X86_FEATURE_PTS, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, pkg_temp_thermal_ids); |