memtest: Memtester support for DMA

This patch adds DMA testing to the Memtester and is inherits many changes from
Polina's old tester_dma_extension patch.  Since Ruby does not work in atomic
mode, the atomic mode options are removed.

1 files changed, 7 insertions, 0 deletions

diff --git a/src/cpu/memtest/memtest.hh b/src/cpu/memtest/memtest.hh
index 907659f69..bb71da355 100644
--- a/src/cpu/memtest/memtest.hh
+++ b/src/cpu/memtest/memtest.hh
@@ -132,6 +132,11 @@ class MemTest : public MemObject
     PacketPtr retryPkt;
 
     bool accessRetry;
+    
+    //
+    // The dmaOustanding flag enforces only one dma at a time
+    //
+    bool dmaOutstanding;
 
     unsigned size;              // size of testing memory region
 
@@ -139,6 +144,8 @@ class MemTest : public MemObject
     unsigned percentFunctional; // target percentage of functional accesses
     unsigned percentUncacheable;
 
+    bool issueDmas;
+
     int id;
 
     std::set<unsigned> outstandingAddrs;