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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/include/kernel/machchk.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2013,2018 */
/* [+] International Business Machines Corp. */
/* */
/* */
/* 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 */
#ifndef __KERNEL_MACHCHK_H
#define __KERNEL_MACHCHK_H
#include <stdint.h>
#include <kernel/task.H>
namespace Kernel
{
namespace MachineCheck
{
/** Handles memory UE machine checks.
*
* @param[in] t - Task which took the machine check.
* @return bool - True if MC successfully handled, false otherwise.
*/
bool handleLoadUE(task_t* t);
/** Handle SLB parity and multi-hit error machine checks.
*
* @param[in] t - Task which took the machine check.
* @return bool - True if MC successfully handled, false otherwise.
*/
bool handleSLB(task_t* t);
/**
* Constants to define the FIR bit to use to force a checkstop
* for an unhandled machine check.
*/
#ifdef CONFIG_P9_SYSTEM
constexpr uint64_t MCHK_XSTOP_FIR_SCOM_ADDR = 0x05012000;
constexpr uint64_t MCHK_XSTOP_FIR_VALUE = 0x0000000100000000ull;//31
#endif
/** @fn setCheckstopData
* @brief Tells the kernel how to force a checkstop for unrecoverable
* machine checks
* @param[in] i_xstopAddr - XSCOM MMIO address of FIR to write
* @param[in] i_xstopData - Data to write into FIR to trigger xstop
*
* @return none
*/
void setCheckstopData(uint64_t i_xstopAddr,
uint64_t i_xstopData);
/** @fn forceCheckstop
* @brief Force a checkstop if we know how in order to get better
* error isolation for cache/memory UEs
*
* @return none
*/
void forceCheckstop();
}
}
#endif
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