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/*
* Copyright : (C) 2022 Phytium Information Technology, Inc.
* All Rights Reserved.
*
* This program is OPEN SOURCE software: you can redistribute it and/or modify it
* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
* either version 1.0 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the Phytium Public License for more details.
*
*
* FilePath: fcpu_affinity_mask.c
* Date: 2024-06-24 10:33:28
* LastEditTime: 2024-06-24 10:33:28
* Description: This file is for
*
* Modify History:
* Ver Who Date Changes
* ----- ------ -------- --------------------------------------
* 1.0 wangzq 2024/06/24 init commit
*/
#include "rtconfig.h"
#include <rtthread.h>
#include "fcpu_info.h"
#include "fparameters.h"
const int cluster_ids[FCORE_NUM] = {
CORE0_AFF,
CORE1_AFF,
CORE2_AFF,
CORE3_AFF,
CORE4_AFF,
CORE5_AFF,
CORE6_AFF,
CORE7_AFF
};
/**
* @name: GetCpuMaskToAffval
* @msg: Convert information in cpu_mask to cluster_ID and target_list
* @param {u32} *cpu_mask is each bit of cpu_mask represents a selected CPU, for example, 0x3 represents core0 and CORE1 .
* @param {u32} *cluster_id is information about the cluster in which core resides ,format is
* |--------[bit31-24]-------[bit23-16]-------------[bit15-8]-----------[bit7-0]
* |--------Affinity level3-----Affinity level2-----Affinity level1-----Affinity level0
* @param {u32} *target_list is core mask in cluster
* @return {u32} 0 indicates that the conversion was not successful , 1 indicates that the conversion was successful
*/
u32 GetCpuMaskToAffval(u32 *cpu_mask, u32 *cluster_id, u32 *target_list)
{
if (*cpu_mask == 0)
{
return 0;
}
*target_list = 0;
*cluster_id = 0;
for (int i = 0; i < sizeof(cluster_ids) / sizeof(cluster_ids[0]); i++)
{
if (*cpu_mask & (1 << i))
{
*cpu_mask &= ~(1 << i) ;
*cluster_id = cluster_ids[i];
*target_list = 1;
break;
}
}
return 1;
}
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