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author | Daniel R. Carvalho <odanrc@yahoo.com.br> | 2018-10-11 14:31:56 +0200 |
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committer | Daniel Carvalho <odanrc@yahoo.com.br> | 2018-10-11 13:24:53 +0000 |
commit | 7ed25a91c2ead4ada3554e52525aa72044f16237 (patch) | |
tree | b83880cc1a626aec83a77b085429741766dcfc32 /src/mem/cache/tags/sector_blk.cc | |
parent | 3341bccfe2ebec50a6a13af3f6a0bf711655fee9 (diff) | |
download | gem5-7ed25a91c2ead4ada3554e52525aa72044f16237.tar.xz |
mem-cache: Move sector_blks to tags folder
Move sector_blks.hh and sector_blks.cc to the tags folder,
as its usage scope is restricted to the tags, and caches
should not be aware of them.
Change-Id: Ia7a71f51ec251d827872daf108c87da543a0ba57
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/13417
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Diffstat (limited to 'src/mem/cache/tags/sector_blk.cc')
-rw-r--r-- | src/mem/cache/tags/sector_blk.cc | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/mem/cache/tags/sector_blk.cc b/src/mem/cache/tags/sector_blk.cc new file mode 100644 index 000000000..de9153639 --- /dev/null +++ b/src/mem/cache/tags/sector_blk.cc @@ -0,0 +1,131 @@ +/** + * Copyright (c) 2018 Inria + * 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. + * + * Authors: Daniel Carvalho + */ + +/** @file + * Implementation of a simple sector block class. Each sector consists of a + * sequence of cache blocks that may or may not be present in the cache. + */ + +#include "mem/cache/tags/sector_blk.hh" + +#include <cassert> + +#include "base/cprintf.hh" +#include "base/logging.hh" + +void +SectorSubBlk::setSectorBlock(SectorBlk* sector_blk) +{ + assert(sector_blk != nullptr); + _sectorBlk = sector_blk; +} + +const SectorBlk* +SectorSubBlk::getSectorBlock() const +{ + return _sectorBlk; +} + +void +SectorSubBlk::setSectorOffset(const int sector_offset) +{ + _sectorOffset = sector_offset; +} + +int +SectorSubBlk::getSectorOffset() const +{ + return _sectorOffset; +} + +Addr +SectorSubBlk::getTag() const +{ + return _sectorBlk->getTag(); +} + +void +SectorSubBlk::insert(const Addr tag, const bool is_secure, + const int src_master_ID, const uint32_t task_ID) +{ + // Make sure it is not overwriting another sector + panic_if((_sectorBlk && _sectorBlk->isValid()) && + ((_sectorBlk->getTag() != tag) || + (_sectorBlk->isSecure() != is_secure)), + "Overwriting valid sector!"); + + CacheBlk::insert(tag, is_secure, src_master_ID, task_ID); + + // Set sector tag + _sectorBlk->setTag(tag); +} + +std::string +SectorSubBlk::print() const +{ + return csprintf("%s sector offset: %#x", CacheBlk::print(), + getSectorOffset()); +} + +bool +SectorBlk::isValid() const +{ + // If any of the blocks in the sector is valid, so is the sector + for (const auto& blk : blks) { + if (blk->isValid()) { + return true; + } + } + return false; +} + +bool +SectorBlk::isSecure() const +{ + // If any of the valid blocks in the sector is secure, so is the sector + for (const auto& blk : blks) { + if (blk->isValid()) { + return blk->isSecure(); + } + } + return false; +} + +void +SectorBlk::setTag(const Addr tag) +{ + _tag = tag; +} + +Addr +SectorBlk::getTag() const +{ + return _tag; +} |