#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/device.h>
+#include <linux/intel_tcc.h>
#include <linux/module.h>
#include <linux/thermal.h>
#include <asm/cpu_device_id.h>
-#define TCC_SHIFT 24
-#define TCC_MASK (0x3fULL<<24)
#define TCC_PROGRAMMABLE BIT(30)
#define TCC_LOCKED BIT(31)
static int tcc_get_max_state(struct thermal_cooling_device *cdev, unsigned long
*state)
{
- *state = TCC_MASK >> TCC_SHIFT;
- return 0;
-}
-
-static int tcc_offset_update(int tcc)
-{
- u64 val;
- int err;
-
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
-
- val &= ~TCC_MASK;
- val |= tcc << TCC_SHIFT;
-
- err = wrmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, val);
- if (err)
- return err;
-
+ *state = 0x3f;
return 0;
}
static int tcc_get_cur_state(struct thermal_cooling_device *cdev, unsigned long
*state)
{
- u64 val;
- int err;
+ int offset = intel_tcc_get_offset(-1);
- err = rdmsrl_safe(MSR_IA32_TEMPERATURE_TARGET, &val);
- if (err)
- return err;
+ if (offset < 0)
+ return offset;
- *state = (val & TCC_MASK) >> TCC_SHIFT;
+ *state = offset;
return 0;
}
static int tcc_set_cur_state(struct thermal_cooling_device *cdev, unsigned long
state)
{
- return tcc_offset_update(state);
+ return intel_tcc_set_offset(-1, (int)state);
}
static const struct thermal_cooling_device_ops tcc_cooling_ops = {
module_exit(tcc_cooling_exit)
+MODULE_IMPORT_NS(INTEL_TCC);
MODULE_DESCRIPTION("TCC offset cooling device Driver");
MODULE_AUTHOR("Zhang Rui <rui.zhang@intel.com>");
MODULE_LICENSE("GPL v2");