ruby: Stall and wait input messages instead of recycling
This patch allows messages to be stalled in their input buffers and wait
until a corresponding address changes state. In order to make this work,
all in_ports must be ranked in order of dependence and those in_ports that
may unblock an address, must wake up the stalled messages. Alot of this
complexity is handled in slicc and the specification files simply
annotate the in_ports.
--HG--
rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/StallAndWaitStatementAST.py
rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/WakeUpDependentsStatementAST.py
diff --git a/src/mem/slicc/ast/PeekStatementAST.py b/src/mem/slicc/ast/PeekStatementAST.py
index 18244f5..cc3091c 100644
--- a/src/mem/slicc/ast/PeekStatementAST.py
+++ b/src/mem/slicc/ast/PeekStatementAST.py
@@ -77,6 +77,14 @@
}
''')
+ if self.pairs.has_key("wake_up"):
+ address_field = self.pairs['wake_up']
+ code('''
+ if (m_waiting_buffers.count(in_msg_ptr->m_$address_field) > 0) {
+ wakeUpBuffers(in_msg_ptr->m_$address_field);
+ }
+ ''')
+
# The other statements
self.statements.generate(code, return_type)
self.symtab.popFrame()
