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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/kernel/cpuid.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2011,2014 */
/* */
/* 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. */
/* */
/* IBM_PROLOG_END_TAG */
/** @file cpuid.C
* Implementation of the cpuid functions.
*/
#include <kernel/cpuid.H>
namespace CpuID
{
ProcessorCoreType getCpuType()
{
uint64_t l_pvr = getPVR();
// Layout of the PVR is (32-bit):
// 2 nibbles reserved.
// 2 nibbles chip type.
// 1 nibble technology.
// 1 nibble major DD.
// 1 nibble reserved.
// 1 nibble minor DD.
switch(l_pvr & 0xFFFF0000)
{
case 0x004B0000:
return CORE_POWER8_MURANO;
case 0x004C0000:
return CORE_POWER8_NAPLES;
case 0x004D0000:
return CORE_POWER8_VENICE;
default:
return CORE_UNKNOWN;
}
}
uint8_t getCpuDD()
{
uint64_t l_pvr = getPVR();
return ((l_pvr & 0x0F00) >> 4) | (l_pvr & 0x000F);
}
};
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