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/*****************************************************************************
Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
more contributor license agreements. See the NOTICE file distributed
with this work for additional information regarding copyright ownership.
Accellera licenses this file to you 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.
*****************************************************************************/
//==============================================================================
/// @file dmi_memory.h
//
/// @brief performs dmi "housekeeping" and actual reads and writes
//
//==============================================================================
//
// Original Authors:
// Jack Donovan, ESLX
// Charles Wilson, ESLX
//
//==============================================================================
#ifndef __DMI_MEMORY_H__
#define __DMI_MEMORY_H__
#include "tlm.h" // TLM headers
class dmi_memory
{
// Member Methods =============================================================
public:
//==============================================================================
/// @fn dmi_memory.h
//
/// @brief Constructor
//
//==============================================================================
dmi_memory
(
const unsigned int ID ///< initiator ID for messaging
);
//=============================================================================
/// @fn operation
///
/// @brief Performs the DMI based Memory Operation specified in the GP
///
/// @details
/// Performs the operation specified by the GP
/// Returns after updating the status of the GP (if required)
/// and updating the time based upon initialization parameters
///
///===================================================================
void
operation
(
tlm::tlm_generic_payload &gp ///< TLM2 GP reference
, sc_core::sc_time &delay_time ///< transaction delay
);
//=============================================================================
/// @fn load_dmi_ptr
//
/// @brief Configures the internal data structures with the DMI object
//
///============================================================================
void
load_dmi_ptr
(
tlm::tlm_dmi &dmi_parameters
);
//============================================================================
/// @fn invalidate_dmi_ptr
//
/// @brief Invalidates a dmi pointer associated with an address range
//
///===========================================================================
void
invalidate_dmi_ptr
(
sc_dt::uint64 start_range
, sc_dt::uint64 end_range
);
//============================================================================
/// @fn is_address_dmi
//
/// @brief Checks the address in the gp to see if in range of a dmi pointer
//
///===========================================================================
bool
is_address_dmi
(
tlm::tlm_generic_payload &gp
);
// Member Variables
private:
unsigned int m_ID; ///< initiator ID
unsigned char *m_data;
unsigned int m_length;
sc_dt::uint64 m_dmi_size;
sc_dt::uint64 m_offset;
sc_dt::uint64 m_address;
sc_core::sc_time m_dmi_read_latency;
sc_core::sc_time m_dmi_write_latency;
sc_dt::uint64 m_dmi_base_address;
tlm::tlm_command m_command;
unsigned char *m_dmi_ptr;
sc_dt::uint64 m_start_address;
sc_dt::uint64 m_end_address;
bool m_is_dmi_flag;
tlm::tlm_dmi::dmi_access_e m_granted_access;
};
#endif /* __DMI_MEMORY_H__ */
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