5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
25 lines
406 B
C
25 lines
406 B
C
// SPDX-License-Identifier: MIT
|
|
/*
|
|
* Copyright © 2020 Intel Corporation
|
|
*/
|
|
|
|
#include <asm/msr.h>
|
|
|
|
#include "librapl.h"
|
|
|
|
u64 librapl_energy_uJ(void)
|
|
{
|
|
unsigned long long power;
|
|
u32 units;
|
|
|
|
if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &power))
|
|
return 0;
|
|
|
|
units = (power & 0x1f00) >> 8;
|
|
|
|
if (rdmsrl_safe(MSR_PP1_ENERGY_STATUS, &power))
|
|
return 0;
|
|
|
|
return (1000000 * power) >> units; /* convert to uJ */
|
|
}
|