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author | Andreas Hansson <andreas.hansson@arm.com> | 2012-02-13 06:45:11 -0500 |
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committer | Andreas Hansson <andreas.hansson@arm.com> | 2012-02-13 06:45:11 -0500 |
commit | 63777fb23f043012ba052fc9c5968da7bdd59221 (patch) | |
tree | fb4e31c4acfa6218a08f0fa627db390f6f22b1be /src/python/m5/params.py | |
parent | 5a9a743cfc4517f93e5c94533efa767b92272c59 (diff) | |
download | gem5-63777fb23f043012ba052fc9c5968da7bdd59221.tar.xz |
MEM: Pass the ports from Python to C++ using the Swig params
This patch adds basic information about the ports in the parameter
classes to be passed from the Python world to the corresponding C++
object. Currently, the only information passed is the number of
connected peers, which for a Port is either 0 or 1, and for a
VectorPort reflects the size of the VectorPort. The default port of
the bus had to be renamed to avoid using the name "default" as a field
in the parameter class. It is possible to extend the Swig'ed
information further and add e.g. a pair with a description and size.
Diffstat (limited to 'src/python/m5/params.py')
-rw-r--r-- | src/python/m5/params.py | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/python/m5/params.py b/src/python/m5/params.py index 95958e3e6..0a369e641 100644 --- a/src/python/m5/params.py +++ b/src/python/m5/params.py @@ -1349,6 +1349,11 @@ class PortRef(object): def __str__(self): return '%s.%s' % (self.simobj, self.name) + def __len__(self): + # Return the number of connected ports, i.e. 0 is we have no + # peer and 1 if we do. + return int(self.peer != None) + # for config.ini, print peer's name (not ours) def ini_str(self): return str(self.peer) @@ -1462,6 +1467,11 @@ class VectorPortRef(object): def __str__(self): return '%s.%s[:]' % (self.simobj, self.name) + def __len__(self): + # Return the number of connected peers, corresponding the the + # length of the elements. + return len(self.elements) + # for config.ini, print peer's name (not ours) def ini_str(self): return ' '.join([el.ini_str() for el in self.elements]) @@ -1525,6 +1535,17 @@ class Port(object): def connect(self, simobj, ref): self.makeRef(simobj).connect(ref) + # No need for any pre-declarations at the moment as we merely rely + # on an unsigned int. + def cxx_predecls(self, code): + pass + + # Declare an unsigned int with the same name as the port, that + # will eventually hold the number of connected ports (and thus the + # number of elements for a VectorPort). + def cxx_decl(self, code): + code('unsigned int port_${{self.name}}_connection_count;') + class MasterPort(Port): # MasterPort("description") def __init__(self, *args): |