[gem5-dev] changeset in gem5: ruby: make the max_size variable of the Messa...

[Nilay Vaish]

changeset e0167dda38dc in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=e0167dda38dc
description:
        ruby: make the max_size variable of the MessageBuffer unsigned

diffstat:

 src/mem/ruby/buffers/MessageBuffer.cc              |  6 +++---
 src/mem/ruby/buffers/MessageBuffer.hh              |  4 ++--
 src/mem/ruby/slicc_interface/AbstractController.hh |  2 +-
 src/mem/ruby/slicc_interface/Controller.py         |  3 ++-
 4 files changed, 8 insertions(+), 7 deletions(-)

diffs (69 lines):

diff -r e8001be2e86e -r e0167dda38dc src/mem/ruby/buffers/MessageBuffer.cc
--- a/src/mem/ruby/buffers/MessageBuffer.cc     Sat Mar 01 23:35:23 2014 -0600
+++ b/src/mem/ruby/buffers/MessageBuffer.cc     Sat Mar 01 23:59:57 2014 -0600
@@ -49,7 +49,7 @@
 
     m_ordering_set = false;
     m_strict_fifo = true;
-    m_max_size = -1;
+    m_max_size = 0;
     m_randomization = true;
     m_size_last_time_size_checked = 0;
     m_size_at_cycle_start = 0;
@@ -63,7 +63,7 @@
     m_vnet_id = 0;
 }
 
-int
+unsigned int
 MessageBuffer::getSize()
 {
     if (m_time_last_time_size_checked != m_receiver->curCycle()) {
@@ -79,7 +79,7 @@
 {
 
     // fast path when message buffers have infinite size
-    if (m_max_size == -1) {
+    if (m_max_size == 0) {
         return true;
     }
 
diff -r e8001be2e86e -r e0167dda38dc src/mem/ruby/buffers/MessageBuffer.hh
--- a/src/mem/ruby/buffers/MessageBuffer.hh     Sat Mar 01 23:35:23 2014 -0600
+++ b/src/mem/ruby/buffers/MessageBuffer.hh     Sat Mar 01 23:59:57 2014 -0600
@@ -134,8 +134,8 @@
         m_ordering_set = true;
     }
 
-    void resize(int size) { m_max_size = size; }
-    int getSize();
+    void resize(unsigned int size) { m_max_size = size; }
+    unsigned int getSize();
     void setRandomization(bool random_flag) { m_randomization = random_flag; }
 
     void clear();
diff -r e8001be2e86e -r e0167dda38dc 
src/mem/ruby/slicc_interface/AbstractController.hh
--- a/src/mem/ruby/slicc_interface/AbstractController.hh        Sat Mar 01 
23:35:23 2014 -0600
+++ b/src/mem/ruby/slicc_interface/AbstractController.hh        Sat Mar 01 
23:59:57 2014 -0600
@@ -146,7 +146,7 @@
     unsigned int m_cur_in_port;
     int m_number_of_TBEs;
     int m_transitions_per_cycle;
-    int m_buffer_size;
+    unsigned int m_buffer_size;
     Cycles m_recycle_latency;
 
     //! Map from physical network number to the Message Buffer.
diff -r e8001be2e86e -r e0167dda38dc src/mem/ruby/slicc_interface/Controller.py
--- a/src/mem/ruby/slicc_interface/Controller.py        Sat Mar 01 23:35:23 
2014 -0600
+++ b/src/mem/ruby/slicc_interface/Controller.py        Sat Mar 01 23:59:57 
2014 -0600
@@ -40,7 +40,8 @@
 
     transitions_per_cycle = \
         Param.Int(32, "no. of  SLICC state machine transitions per cycle")
-    buffer_size = Param.Int(0, "max buffer size 0 means infinite")
+    buffer_size = Param.UInt32(0, "max buffer size 0 means infinite")
+
     recycle_latency = Param.Cycles(10, "")
     number_of_TBEs = Param.Int(256, "")
     ruby_system = Param.RubySystem("")
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