diff options
Diffstat (limited to 'src/mem/ruby/common/Address.cc')
-rw-r--r-- | src/mem/ruby/common/Address.cc | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/src/mem/ruby/common/Address.cc b/src/mem/ruby/common/Address.cc index 2d895cc33..cc87f4ece 100644 --- a/src/mem/ruby/common/Address.cc +++ b/src/mem/ruby/common/Address.cc @@ -27,6 +27,76 @@ */ #include "mem/ruby/common/Address.hh" +#include "mem/ruby/system/System.hh" + +physical_address_t +Address::getLineAddress() const +{ + return bitSelect(RubySystem::getBlockSizeBits(), ADDRESS_WIDTH); +} + +physical_address_t +Address::getOffset() const +{ + return bitSelect(0, RubySystem::getBlockSizeBits() - 1); +} + +void +Address::makeLineAddress() +{ + m_address = maskLowOrderBits(RubySystem::getBlockSizeBits()); +} + +// returns the next stride address based on line address +void +Address::makeNextStrideAddress(int stride) +{ + m_address = maskLowOrderBits(RubySystem::getBlockSizeBits()) + + RubySystem::getBlockSizeBytes()*stride; +} + +integer_t +Address::memoryModuleIndex() const +{ + integer_t index = + bitSelect(RubySystem::getBlockSizeBits() + + RubySystem::getMemorySizeBits(), ADDRESS_WIDTH); + assert (index >= 0); + return index; + + // Index indexHighPortion = + // address.bitSelect(MEMORY_SIZE_BITS - 1, + // PAGE_SIZE_BITS + NUMBER_OF_MEMORY_MODULE_BITS); + // Index indexLowPortion = + // address.bitSelect(DATA_BLOCK_BITS, PAGE_SIZE_BITS - 1); + // + // Index index = indexLowPortion | + // (indexHighPortion << (PAGE_SIZE_BITS - DATA_BLOCK_BITS)); + + /* + Round-robin mapping of addresses, at page size granularity + +ADDRESS_WIDTH MEMORY_SIZE_BITS PAGE_SIZE_BITS DATA_BLOCK_BITS + | | | | + \ / \ / \ / \ / 0 + ----------------------------------------------------------------------- + | unused |xxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxx| | + | |xxxxxxxxxxxxxxx| |xxxxxxxxxxxxxxx| | + ----------------------------------------------------------------------- + indexHighPortion indexLowPortion + <-------> + NUMBER_OF_MEMORY_MODULE_BITS + */ +} + +void +Address::print(std::ostream& out) const +{ + using namespace std; + out << "[" << hex << "0x" << m_address << "," << " line 0x" + << maskLowOrderBits(RubySystem::getBlockSizeBits()) << dec << "]" + << flush; +} void Address::output(std::ostream& out) const |