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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/import/chips/p9/procedures/hwp/nest/p9_phb_hv_access.H $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* Contributors Listed Below - COPYRIGHT 2015,2017 */
/* [+] 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 p9_phb_hv_access.H
/// @brief Code to support PHB HV Indirect access procedures (FAPI)
///
/// @author ricmata@us.ibm.com
///
// *HWP HWP Owner: Ricardo Mata Jr. ricmata@us.ibm.com
// *HWP FW Owner: Thi Tran thi@us.ibm.com
// *HWP Team: Nest
// *HWP Level: 3
// *HWP Consumed by: HB
#ifndef _P9_PHB_HV_ACCESS_H_
#define _P9_PHB_HV_ACCESS_H_
//------------------------------------------------------------------------------
// Includes
//------------------------------------------------------------------------------
#include <fapi2.H>
//------------------------------------------------------------------------------
// Structure definitions
//------------------------------------------------------------------------------
//function pointer typedef definition for HWP call support
typedef fapi2::ReturnCode (*p9_phb_hv_access_FP_t) (
const fapi2::Target<fapi2::TARGET_TYPE_PHB>&,
const uint32_t,
bool const,
bool const,
uint64_t&);
//------------------------------------------------------------------------------
// Function prototypes
//------------------------------------------------------------------------------
extern "C" {
/// @brief perform read/write to PHB HV register space
/// @param[in] i_target PHB target
/// @param[in] i_address PHB HV register offset between 0x0000 - 0x1FFF
/// @param[in] i_rnw 1 for read, 0 for write
/// @param[in] i_size 1 for 8B op to access PHB HV. 0 for 4B op for config ops
/// @param[inout] io_data Input data for writes / output data for reads
///
/// @return FAPI_RC_SUCCESS if the read/write completes successfully.
fapi2::ReturnCode p9_phb_hv_access(
const fapi2::Target<fapi2::TARGET_TYPE_PHB>& i_target,
const uint32_t i_address,
bool const i_rnw,
bool const i_size,
uint64_t& io_data);
} // extern "C"
#endif //_P9_PHB_HV_ACCESS_H_
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