sector_blk.cc

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#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::setValid()
{
    CacheBlk::setValid();
    _sectorBlk->validateSubBlk();
}
 
void
SectorSubBlk::setSecure()
{
    CacheBlk::setSecure();
    _sectorBlk->setSecure();
}
 
void
SectorSubBlk::invalidate()
{
    CacheBlk::invalidate();
    _sectorBlk->invalidateSubBlk();
}
 
void
SectorSubBlk::insert(const Addr tag, const bool is_secure,
                     const int src_requestor_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_requestor_ID, task_ID);
 
    // Set sector tag
    _sectorBlk->setTag(tag);
}
 
std::string
SectorSubBlk::print() const
{
    return csprintf("%s sector offset: %#x", CacheBlk::print(),
                    getSectorOffset());
}
 
SectorBlk::SectorBlk()
    : ReplaceableEntry(), _validCounter(0), _tag(MaxAddr), _secureBit(false)
{
}
 
bool
SectorBlk::isValid() const
{
    // If any of the blocks in the sector is valid, so is the sector
    return _validCounter > 0;
}
 
uint8_t
SectorBlk::getNumValid() const
{
    return _validCounter;
}
 
bool
SectorBlk::isSecure() const
{
    // If any of the valid blocks in the sector is secure, so is the sector
    return _secureBit;
}
 
void
SectorBlk::setTag(const Addr tag)
{
    _tag = tag;
}
 
Addr
SectorBlk::getTag() const
{
    return _tag;
}
 
void
SectorBlk::validateSubBlk()
{
    _validCounter++;
}
 
void
SectorBlk::invalidateSubBlk()
{
    // If all sub-blocks have been invalidated, the sector becomes invalid,
    // so clear secure bit
    if (--_validCounter == 0) {
        _secureBit = false;
    }
}
 
void
SectorBlk::setSecure()
{
    _secureBit = true;
}
 
void
SectorBlk::setPosition(const uint32_t set, const uint32_t way)
{
    ReplaceableEntry::setPosition(set, way);
    for (auto& blk : blks) {
        blk->setPosition(set, way);
    }
}