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author | Gabe Black <gabeblack@google.com> | 2018-05-24 01:37:55 -0700 |
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committer | Gabe Black <gabeblack@google.com> | 2018-08-08 10:09:54 +0000 |
commit | 16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f (patch) | |
tree | 7b6faaacb4574a555e561534aa4a8508c0624c32 /src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h | |
parent | 7235d3b5211d0ba8f528d930a4c1e7ad62eec51a (diff) | |
download | gem5-16fa8d7cc8c92f5ab879e4cf9c6c0bbb3567860f.tar.xz |
systemc: Import tests from the Accellera systemc distribution.
Change-Id: Iad76b398949a55d768a34d027a2d8e3739953da6
Reviewed-on: https://gem5-review.googlesource.com/10845
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Gabe Black <gabeblack@google.com>
Diffstat (limited to 'src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h')
-rw-r--r-- | src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h b/src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h new file mode 100644 index 000000000..87ef7851e --- /dev/null +++ b/src/systemc/tests/tlm/multi_sockets/simpleAddressMap.h @@ -0,0 +1,148 @@ +/***************************************************************************** + + 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. + + *****************************************************************************/ + +#ifndef __simpleAddressMap_h__ +#define __simpleAddressMap_h__ + +#include <systemc> +#include <map> + + +//-------------------------------------------------------------------------- +/** + * Simple address map implementation for the generic protocol. + */ +//-------------------------------------------------------------------------- +class SimpleAddressMap +{ + typedef std::map<sc_dt::uint64, unsigned int> mapType; + typedef std::map<sc_dt::uint64, unsigned int>::iterator addressMapIterator; + +public: + SimpleAddressMap() {} + + //-------------------------------------------------------------------------- + /** + * Check for overlapping address ranges + */ + //-------------------------------------------------------------------------- + void checkSanity() + { + addressMapIterator pos; + for (pos=m_addressMap.begin();pos!=m_addressMap.end();++pos){ + if(pos->second!=255) + SC_REPORT_ERROR("SimpleAddressMap","Overlapping Address Regions."); + else + ++pos; + if(pos->second==255) + SC_REPORT_ERROR("SimpleAddressMap","Overlapping Address Regions."); + } + std::cout<<"Address check successful."<<std::endl; + } + + + //-------------------------------------------------------------------------- + /** + * Print map + */ + //-------------------------------------------------------------------------- + void dumpMap() + { + std::cout<<"SimpleAddressMap: printing the sorted MAP:"<<std::endl; + addressMapIterator pos; + for (pos=m_addressMap.begin();pos!=m_addressMap.end();++pos){ + if(pos->second==255) + printf("key: %x value: %i \n", (unsigned int) ((pos->first+1)>>1)-1, pos->second); + else + printf("key: %x value: %i \n", (unsigned int) (pos->first>>1)-1, pos->second); + } + } + + + //-------------------------------------------------------------------------- + /** + * Decode slave address. + * @param address_ A slave address. + * @return The decoded slave port number. On error, the value 255 is returned. + */ + //-------------------------------------------------------------------------- + unsigned int decode(sc_dt::uint64 address_) + { + addressMapIterator lbound; + + lbound=m_addressMap.lower_bound((address_+1)<<1); + if((lbound->second == 255) | (lbound==m_addressMap.end())){ + SC_REPORT_ERROR("SimpleAddressMap", "Address does not match any registered address range."); + } + else{ + return lbound->second; + } + return 255; + } + + const sc_dt::uint64& get_max(){ + if (m_addressMap.size()){ + addressMapIterator i=(m_addressMap.end()); + i--; + retval=(i->first>>1)-1; + return retval; + } + else { + SC_REPORT_ERROR("SimpleAddressMap", "get_max() called on empty address map."); + return retval; + } + } + + const sc_dt::uint64& get_min(){ + if (m_addressMap.size()){ + addressMapIterator i=(m_addressMap.begin()); + retval=((i->first+1)>>1)-1; + return retval; + } + else { + SC_REPORT_ERROR("SimpleAddressMap", "get_min() called on empty address map."); + return retval; + } + } + + //-------------------------------------------------------------------------- + /** + * Insert a slave into the address map + */ + //-------------------------------------------------------------------------- + void insert(sc_dt::uint64 baseAddress_, sc_dt::uint64 highAddress_, unsigned int portNumber_) + { + if(baseAddress_>highAddress_) + SC_REPORT_ERROR("SimpleAddressMap", "Base address must be lower than high address."); + if(portNumber_>=255) + SC_REPORT_ERROR("SimpleAddressMap", "Only ;-) 255 targets can be handled."); + m_addressMap.insert(mapType::value_type(((baseAddress_+1)<<1)-1, 255 )); + m_addressMap.insert(mapType::value_type( (highAddress_+1)<<1 ,portNumber_)); + } + +private: + sc_dt::uint64 retval; + /// the address map + mapType m_addressMap; +}; + + + + +#endif |