diff options
Diffstat (limited to 'src/mem/ruby/system/DMASequencer.cc')
| -rw-r--r-- | src/mem/ruby/system/DMASequencer.cc | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/mem/ruby/system/DMASequencer.cc b/src/mem/ruby/system/DMASequencer.cc index 63e1f76e6..b36f8780b 100644 --- a/src/mem/ruby/system/DMASequencer.cc +++ b/src/mem/ruby/system/DMASequencer.cc @@ -97,8 +97,10 @@ DMASequencer::makeRequest(const RubyRequest &request) msg->getLen() = (offset + len) <= RubySystem::getBlockSizeBytes() ? len : RubySystem::getBlockSizeBytes() - offset; - if (write) { - msg->getDataBlk().setData(data, offset, msg->getLen()); + if (write && (data != NULL)) { + if (active_request.data != NULL) { + msg->getDataBlk().setData(data, offset, msg->getLen()); + } } assert(m_mandatory_q_ptr != NULL); @@ -160,8 +162,10 @@ DMASequencer::dataCallback(const DataBlock & dblk) if (active_request.bytes_completed == 0) offset = active_request.start_paddr & m_data_block_mask; assert(active_request.write == false); - memcpy(&active_request.data[active_request.bytes_completed], - dblk.getData(offset, len), len); + if (active_request.data != NULL) { + memcpy(&active_request.data[active_request.bytes_completed], + dblk.getData(offset, len), len); + } issueNext(); } |