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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: sbe/hwpf/include/plat/plat_hw_access.H $ */
/* */
/* OpenPOWER sbe Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2016 */
/* [+] 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 */
/**
* @file plat_hw_access.H
*
* @brief Define platform specific calls for hardware accesses.
*/
#ifndef PLATHWACCESS_H_
#define PLATHWACCESS_H_
#include <plat_includes.H>
#include "hw_access_def.H"
/// PIB Error Mask
#define PLAT_SET_PIB_ERROR_MASK(_m_mask) \
{ /* Read MSR */ \
uint32_t msr_data = mfmsr(); \
/* Set SEM field */ \
msr_data &= ~(BITS(0,8)); \
msr_data |= (uint32_t)(i_mask << 24); \
/* Write MSR */ \
mtmsr(msr_data); \
};
#define PLAT_GET_PIB_ERROR_MASK(_m_mask) \
uint8_t _m_mask; \
uint32_t _sem = mfmsr(); \
_m_mask = (uint8_t)((_sem & MSR_SEM) >> (32-(MSR_SEM_START_BIT + MSR_SEM_LEN)));
// Building block PPE instructions
#define PPE_MFMSR(_m_data) \
asm volatile \
( \
"mfmsr %[data] \n" \
: [data]"=&r"(*_m_data) \
: "[data]"(*_m_data) \
);
#define PPE_MTMSR(_m_data) \
asm volatile \
( \
"mtmsr %[data] \n" \
: [data]"=&r"(*_m_data) \
: "[data]"(*_m_data) \
);
/// GetScom
#define PLAT_GETSCOM(_m_rc, _m_base, _m_offset, _m_data) \
_m_rc = getscom_abs(getEffectiveAddress(_m_base, _m_offset), _m_data)
/// PutScom
#define PLAT_PUTSCOM(_m_rc, _m_base, _m_offset, _m_data) \
_m_rc = putscom_abs(getEffectiveAddress(_m_base, _m_offset), _m_data)
/// GetCFAM
#define PLAT_GETCFAM(_m_base, _m_offset, _m_data) \
static_assert( K == TARGET_TYPE_NONE, \
"getCfamRegister is not supported by PPE platforms")
/// PutCFAM
#define PLAT_PUTCFAM(_m_base, _m_offset, _m_data) \
static_assert( K == TARGET_TYPE_NONE, \
"putCfamRegister is not supported by PPE platforms")
/// ModifyCFAM
#define PLAT_MODCFAM(_m_base, _m_offset, _m_data, _m_mode) \
static_assert( K == TARGET_TYPE_NONE, \
"modifyCfamRegister is not supported by PPE platforms")
namespace fapi2
{
// This function loads the scan region data for the given ring address and
// updates the check word data
// @param[in] : ring addtress
// @param[in]: ring mode
// @return fapi::ReturnCode. FAPI2_RC_SUCCESS if success, else error code.
fapi2::ReturnCode getRing_setup(const uint32_t i_ringAddress,
const fapi2::RingMode i_ringMode);
// This function read the 64 bit data from the hardware
// @param[in] i_ringAddress - absolute ring address
// @param [out]: 64 bit data
// @param [in] i_bitShiftValue - Bit shift value that needs to rotate
// @note- If the ring length is divisble by 64, then bitshift will always be
// 64, else need to store the ring_length mod 64 and send that value in the
// last iteration.
// @return fapi::ReturnCode. FAPI2_RC_SUCCESS if success, else error code.
fapi2::ReturnCode getRing_granule_data(const uint32_t i_ringAddress,
uint64_t *o_data,
const uint32_t i_bitShiftValue);
// This function verify the check word data is matching or not and will
// clean up the scan region data
// @param[in] i_ringAddress - absolute ring address
// @param[in] i_ringMode - Ring mode value
// @return fapi::ReturnCode. FAPI2_RC_SUCCESS if success, else error code.
fapi2::ReturnCode getRing_verifyAndcleanup(const uint32_t i_ringAddress,
const fapi2::RingMode i_ringMode);
}
#endif // PLATHWACCESS_H_
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