diff options
Diffstat (limited to 'src/mem/ruby/system/DMASequencer.cc')
| -rw-r--r-- | src/mem/ruby/system/DMASequencer.cc | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/mem/ruby/system/DMASequencer.cc b/src/mem/ruby/system/DMASequencer.cc index fbaf5f1d1..e8e279043 100644 --- a/src/mem/ruby/system/DMASequencer.cc +++ b/src/mem/ruby/system/DMASequencer.cc @@ -116,9 +116,13 @@ DMASequencer::issueNext() assert(m_is_busy == true); active_request.bytes_completed = active_request.bytes_issued; if (active_request.len == active_request.bytes_completed) { - DPRINTF(RubyDma, "DMA request completed\n"); - ruby_hit_callback(active_request.pkt); + // + // Must unset the busy flag before calling back the dma port because + // the callback may cause a previously nacked request to be reissued + // + DPRINTF(RubyDma, "DMA request completed\n"); m_is_busy = false; + ruby_hit_callback(active_request.pkt); return; } |