Files
gem5/src/mem/cache/cache_blk.cc
Daniel R. Carvalho 24bfdc36f1 mem-cache: Add setters to validate and secure block
In order to allow polymorphism of the block these two
functions have been added, and all direct status
assignments to these bits have been substituted.

We also assert that the block has been invalidated
before insertion. Then the block is validated in
the insertion.

Change-Id: Ie7be42408721ad4c2c9dc880f82a62cb594f8668
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/14362
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
2018-11-26 12:49:18 +00:00

87 lines
3.2 KiB
C++

/*
* Copyright (c) 2012-2013 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Copyright (c) 2007 The Regents of The University of Michigan
* 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.
*/
#include "mem/cache/cache_blk.hh"
#include "base/cprintf.hh"
void
CacheBlk::insert(const Addr tag, const bool is_secure,
const int src_master_ID, const uint32_t task_ID)
{
// Make sure that the block has been properly invalidated
assert(status == 0);
// Set block tag
this->tag = tag;
// Set source requestor ID
srcMasterId = src_master_ID;
// Set task ID
task_id = task_ID;
// Set insertion tick as current tick
tickInserted = curTick();
// Insertion counts as a reference to the block
refCount = 1;
// Set secure state
if (is_secure) {
setSecure();
}
// Validate block
setValid();
}
void
CacheBlkPrintWrapper::print(std::ostream &os, int verbosity,
const std::string &prefix) const
{
ccprintf(os, "%sblk %c%c%c%c\n", prefix,
blk->isValid() ? 'V' : '-',
blk->isWritable() ? 'E' : '-',
blk->isDirty() ? 'M' : '-',
blk->isSecure() ? 'S' : '-');
}