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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* These are the functions that exported to slicc from ruby.
*/
#ifndef __MEM_RUBY_SLICC_INTERFACE_RUBYSLICCUTIL_HH__
#define __MEM_RUBY_SLICC_INTERFACE_RUBYSLICCUTIL_HH__
#include <cassert>
#include "debug/RubySlicc.hh"
#include "mem/ruby/common/Address.hh"
#include "mem/ruby/common/Global.hh"
#include "mem/ruby/slicc_interface/RubySlicc_ComponentMapping.hh"
#include "mem/ruby/system/System.hh"
inline int
random(int n)
{
return random() % n;
}
inline Time
get_time()
{
return g_system_ptr->getTime();
}
inline Time
zero_time()
{
return 0;
}
inline NodeID
intToID(int nodenum)
{
NodeID id = nodenum;
return id;
}
inline int
IDToInt(NodeID id)
{
int nodenum = id;
return nodenum;
}
inline Time
getTimeModInt(Time time, int modulus)
{
return time % modulus;
}
inline Time
getTimePlusInt(Time addend1, int addend2)
{
return (Time) addend1 + addend2;
}
inline Time
getTimeMinusTime(Time t1, Time t2)
{
assert(t1 >= t2);
return t1 - t2;
}
// Return type for time_to_int is "Time" and not "int" so we get a
// 64-bit integer
inline Time
time_to_int(Time time)
{
return time;
}
// Appends an offset to an address
inline Address
setOffset(Address addr, int offset)
{
Address result = addr;
result.setOffset(offset);
return result;
}
// Makes an address into a line address
inline Address
makeLineAddress(Address addr)
{
Address result = addr;
result.makeLineAddress();
return result;
}
inline int
addressOffset(Address addr)
{
return addr.getOffset();
}
inline int
mod(int val, int mod)
{
return val % mod;
}
inline int max_tokens()
{
return 1024;
}
/**
* This function accepts an address, a data block and a packet. If the address
* range for the data block contains the address which the packet needs to
* read, then the data from the data block is written to the packet. True is
* returned if the data block was read, otherwise false is returned.
*/
inline bool
testAndRead(Address addr, DataBlock& blk, Packet *pkt)
{
Address pktLineAddr(pkt->getAddr());
pktLineAddr.makeLineAddress();
Address lineAddr = addr;
lineAddr.makeLineAddress();
if (pktLineAddr == lineAddr) {
uint8_t *data = pkt->getPtr<uint8_t>(true);
unsigned int size_in_bytes = pkt->getSize();
unsigned startByte = pkt->getAddr() - lineAddr.getAddress();
for (unsigned i = 0; i < size_in_bytes; ++i) {
data[i] = blk.getByte(i + startByte);
}
return true;
}
return false;
}
/**
* This function accepts an address, a data block and a packet. If the address
* range for the data block contains the address which the packet needs to
* write, then the data from the packet is written to the data block. True is
* returned if the data block was written, otherwise false is returned.
*/
inline bool
testAndWrite(Address addr, DataBlock& blk, Packet *pkt)
{
Address pktLineAddr(pkt->getAddr());
pktLineAddr.makeLineAddress();
Address lineAddr = addr;
lineAddr.makeLineAddress();
if (pktLineAddr == lineAddr) {
uint8_t *data = pkt->getPtr<uint8_t>(true);
unsigned int size_in_bytes = pkt->getSize();
unsigned startByte = pkt->getAddr() - lineAddr.getAddress();
for (unsigned i = 0; i < size_in_bytes; ++i) {
blk.setByte(i + startByte, data[i]);
}
return true;
}
return false;
}
#endif // __MEM_RUBY_SLICC_INTERFACE_RUBYSLICCUTIL_HH__
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