You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
69 lines
2.2 KiB
69 lines
2.2 KiB
/*
|
|
* 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: 2023-11-6 10:33:28
|
|
* LastEditTime: 2023-11-6 10:33:28
|
|
* Description: This file is for
|
|
*
|
|
* Modify History:
|
|
* Ver Who Date Changes
|
|
* ----- ------ -------- --------------------------------------
|
|
* 1.0 zhangyan 2023/11/6 init commit
|
|
*/
|
|
#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;
|
|
}
|
|
|