/* ----------------------------------------------------------------------------
 * Copyright (c) Huawei Technologies Co., Ltd. 2013-2020. All rights reserved.
 * Description: Aarch32 Hw Task Implementation
 * Author: Huawei LiteOS Team
 * Create: 2013-01-01
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 1. Redistributions of source code must retain the above copyright notice, this list of
 * conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
 * of conditions and the following disclaimer in the documentation and/or other materials
 * provided with the distribution.
 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific prior written
 * permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 * --------------------------------------------------------------------------- */

#include "los_config.h"
#include "arch/cpu.h"

#ifdef __cplusplus
#if __cplusplus
extern "C" {
#endif /* __cplusplus */
#endif /* __cplusplus */

/* support cpu vendors */
CpuVendor g_cpuTable[] = {
    /* armv7-a */
    { 0xc07, "Cortex-A7" },
    { 0xc09, "Cortex-A9" },
    /* armv7-r */
    { 0xc18, "Cortex-R8" },
    { 0xd03, "Cortex-A53" },
};

/* logical cpu mapping */
UINT64 g_cpuMap[LOSCFG_KERNEL_CORE_NUM] = {
    [0 ... LOSCFG_KERNEL_CORE_NUM - 1] = (UINT64)(-1)
};

const CHAR *ArchCpuInfo(VOID)
{
    UINT32 midr = OsMainIDGet();
    /* [15:4] is the primary part number */
    UINT32 partNo = (midr & 0xFFF0) >> 0x4;

    for (UINT32 i = 0; i < (sizeof(g_cpuTable) / sizeof(CpuVendor)); i++) {
        if (partNo == g_cpuTable[i].partNo) {
            return g_cpuTable[i].cpuName;
        }
    }

    return "unknown";
}

#ifdef __cplusplus
#if __cplusplus
}
#endif /* __cplusplus */
#endif /* __cplusplus */