#include <linux/uaccess.h>
#include <uapi/linux/isst_if.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+
#include "isst_if_common.h"
#define MSR_THREAD_ID_INFO 0x53
+#define MSR_PM_LOGICAL_ID 0x54
#define MSR_CPU_BUS_NUMBER 0x128
static struct isst_if_cmd_cb punit_callbacks[ISST_IF_DEV_MAX];
MSR_CONFIG_TDP_CONTROL,
MSR_TURBO_RATIO_LIMIT1,
MSR_TURBO_RATIO_LIMIT2,
+ MSR_PM_LOGICAL_ID,
};
struct isst_valid_cmd_ranges {
u32 param;
};
+static bool isst_hpm_support;
+
static DECLARE_HASHTABLE(isst_hash, 8);
static DEFINE_MUTEX(isst_hash_lock);
isst_cpu_info[cpu].pci_dev[1] = _isst_if_get_pci_dev(cpu, 1, 30, 1);
}
+ if (isst_hpm_support) {
+
+ ret = rdmsrl_safe(MSR_PM_LOGICAL_ID, &data);
+ if (!ret)
+ goto set_punit_id;
+ }
+
ret = rdmsrl_safe(MSR_THREAD_ID_INFO, &data);
if (ret) {
isst_cpu_info[cpu].punit_cpu_id = -1;
return ret;
}
+
+set_punit_id:
isst_cpu_info[cpu].punit_cpu_id = data;
isst_restore_msr_local(cpu);
.fops = &isst_if_char_driver_ops,
};
+static const struct x86_cpu_id hpm_cpu_ids[] = {
+ X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_X, NULL),
+ X86_MATCH_INTEL_FAM6_MODEL(SIERRAFOREST_X, NULL),
+ {}
+};
+
static int isst_misc_reg(void)
{
mutex_lock(&punit_misc_dev_reg_lock);
goto unlock_exit;
if (!misc_usage_count) {
+ const struct x86_cpu_id *id;
+
+ id = x86_match_cpu(hpm_cpu_ids);
+ if (id)
+ isst_hpm_support = true;
+
misc_device_ret = isst_if_cpu_info_init();
if (misc_device_ret)
goto unlock_exit;