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mem-ruby: Add functionalReadBuffers to AbstractController

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Forwards a functional read accesses to all message buffers, similar to
functionalWriteBuffers.

Change-Id: I54b0ba16aab84575e4c9d6102f6c519b309aa95b
Signed-off-by: Tiago Mück <tiago.muck@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/22020
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Bradford Beckmann <brad.beckmann@amd.com>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
This commit is contained in:
Tiago Muck
2019-05-02 18:38:26 -05:00
committed by Tiago Mück
parent cbb14a6363
commit b3f264a0a0
2 changed files with 37 additions and 0 deletions
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36
src/mem/slicc/symbols/StateMachine.py
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@@ -1,3 +1,15 @@
# Copyright (c) 2019 ARM Limited
# All rights reserved.
#
# The license below extends only to copyright in the software and shall
# not be construed as granting a license to any other intellectual
# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
# licensed hereunder. You may use the software subject to the license
# terms below provided that you ensure that this notice is replicated
# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
# Copyright (c) 2009 The Hewlett-Packard Development Company
# Copyright (c) 2013 Advanced Micro Devices, Inc.
@@ -313,6 +325,7 @@ class $c_ident : public AbstractController
Sequencer* getCPUSequencer() const;
GPUCoalescer* getGPUCoalescer() const;
bool functionalReadBuffers(PacketPtr&);
int functionalWriteBuffers(PacketPtr&);
void countTransition(${ident}_State state, ${ident}_Event event);
@@ -1039,6 +1052,29 @@ $c_ident::functionalWriteBuffers(PacketPtr& pkt)
code('''
return num_functional_writes;
}
''')
# Function for functional reads to messages buffered in the controller
code('''
bool
$c_ident::functionalReadBuffers(PacketPtr& pkt)
{
''')
for var in self.objects:
vtype = var.type
if vtype.isBuffer:
vid = "m_%s_ptr" % var.ident
code('if ($vid->functionalRead(pkt)) return true;')
for var in self.config_parameters:
vtype = var.type_ast.type
if vtype.isBuffer:
vid = "m_%s_ptr" % var.ident
code('if ($vid->functionalRead(pkt)) return true;')
code('''
return false;
}
''')
code.write(path, "%s.cc" % c_ident)