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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Email: [email protected]
*
* Change Logs:
* Date Author Notes
* 2022-10-26 huanghe first commit
*
*/
#include "rtconfig.h"
#include <rtthread.h>
#include "fcpu_info.h"
#include "fparameters.h"
/**
* @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;
if (*cpu_mask & 0x3)
{
if ((*cpu_mask & 0x3) == 0x3)
{
*target_list = 3;
}
else if ((*cpu_mask & 0x1))
{
*target_list = 1;
}
else
{
*target_list = 2;
}
*cpu_mask &= ~0x3;
}
else if (*cpu_mask & 0xc)
{
*cluster_id = 0x100;
if ((*cpu_mask & 0xc) == 0xc)
{
*target_list = 3;
}
else if ((*cpu_mask & 0x4))
{
*target_list = 1;
}
else
{
*target_list = 2;
}
*cpu_mask &= ~0xc;
}
else if (*cpu_mask & 0x30)
{
*cluster_id = 0x200;
if ((*cpu_mask & 0x30) == 0x30)
{
*target_list = 3;
}
else if ((*cpu_mask & 0x10))
{
*target_list = 1;
}
else
{
*target_list = 2;
}
*cpu_mask &= ~0x30;
}
else if (*cpu_mask & 0xc0)
{
*cluster_id = 0x300;
if ((*cpu_mask & 0xc0) == 0xc0)
{
*target_list = 3;
}
else if ((*cpu_mask & 0x40))
{
*target_list = 1;
}
else
{
*target_list = 2;
}
*cpu_mask &= ~0xc0;
}
else
{
*cpu_mask = 0;
return 0;
}
return 1;
}
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