intel_peci.h

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/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef PECI_H
#define PECI_H
 
#include <stdbool.h>
#include <stdint.h>
 
#define RDPKG_IDX_PKG_TEMP 0x02
#define RDPKG_IDX_DIMM_TEMP 0x0E
#define WRPKG_IDX_DIMM_TEMP 0x0E
#define RDPKG_IDX_TJMAX_TEMP 0x10
#define RDPKG_IDX_PWR_SKU_UNIT_READ 0x1E
 
#define PECI_CC_SUCCESS 0x40
 
enum {
    PECI_UNKNOWN = 0x00,
    PECI_TEMP_CPU_MARGIN,
    PECI_TEMP_CPU,
    PECI_TEMP_CPU_TJMAX,
    PECI_TEMP_CHANNEL0_DIMM0,
    PECI_TEMP_CHANNEL0_DIMM1,
    PECI_TEMP_CHANNEL1_DIMM0,
    PECI_TEMP_CHANNEL1_DIMM1,
    PECI_TEMP_CHANNEL2_DIMM0,
    PECI_TEMP_CHANNEL2_DIMM1,
    PECI_TEMP_CHANNEL3_DIMM0,
    PECI_TEMP_CHANNEL3_DIMM1,
    PECI_TEMP_CHANNEL4_DIMM0,
    PECI_TEMP_CHANNEL4_DIMM1,
    PECI_TEMP_CHANNEL5_DIMM0,
    PECI_TEMP_CHANNEL5_DIMM1,
    PECI_TEMP_CHANNEL6_DIMM0,
    PECI_TEMP_CHANNEL6_DIMM1,
    PECI_TEMP_CHANNEL7_DIMM0,
    PECI_TEMP_CHANNEL7_DIMM1,
    PECI_POWER_TOTAL_DIMM,
    PECI_PWR_CPU,
    PECI_MAX,
};
 
typedef struct {
    uint8_t time_unit;
    uint8_t energy_unit;
    uint8_t power_unit;
} intel_peci_unit;
 
bool check_dimm_present(uint8_t dimm_channel, uint8_t dimm_num, uint8_t *present_result);
bool pal_get_power_sku_unit(uint8_t addr);
bool pal_get_cpu_time(uint8_t addr, uint8_t cmd, uint8_t readlen, uint32_t *run_time);
bool pal_get_cpu_energy(uint8_t addr, uint32_t *pkg_energy, uint32_t *run_time);
void pal_cal_cpu_power(intel_peci_unit unit_info, uint32_t diff_energy, uint32_t diff_time,
               int *reading);
 
#endif