From 6511ab4654f91252de568857fbe15d2c8bce00d4 Mon Sep 17 00:00:00 2001
From: David Hashe <david.hashe@amd.com>
Date: Mon, 20 Jul 2015 09:15:18 -0500
Subject: mem: add request types for acquire and release

Add support for acquire and release requests.  These synchronization operations
are commonly supported by several modern instruction sets.
---
 src/mem/packet.hh | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

(limited to 'src/mem/packet.hh')

diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index d1774e5a8..1cbe6e499 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -12,7 +12,7 @@
  * modified or unmodified, in source code or in binary form.
  *
  * Copyright (c) 2006 The Regents of The University of Michigan
- * Copyright (c) 2010 Advanced Micro Devices, Inc.
+ * Copyright (c) 2010,2015 Advanced Micro Devices, Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -110,6 +110,10 @@ class MemCmd
         SwapResp,
         MessageReq,
         MessageResp,
+        ReleaseReq,
+        ReleaseResp,
+        AcquireReq,
+        AcquireResp,
         // Error responses
         // @TODO these should be classified as responses rather than
         // requests; coding them as requests initially for backwards
@@ -147,6 +151,8 @@ class MemCmd
         IsError,        //!< Error response
         IsPrint,        //!< Print state matching address (for debugging)
         IsFlush,        //!< Flush the address from caches
+        IsAcquire,      //!< Acquire operation
+        IsRelease,      //!< Release operation
         NUM_COMMAND_ATTRIBUTES
     };
 
@@ -203,6 +209,8 @@ class MemCmd
     bool isError() const        { return testCmdAttrib(IsError); }
     bool isPrint() const        { return testCmdAttrib(IsPrint); }
     bool isFlush() const        { return testCmdAttrib(IsFlush); }
+    bool isAcquire() const      { return testCmdAttrib(IsAcquire); }
+    bool isRelease() const      { return testCmdAttrib(IsRelease); }
 
     const Command
     responseCommand() const
@@ -484,6 +492,8 @@ class Packet : public Printable
     bool isError() const             { return cmd.isError(); }
     bool isPrint() const             { return cmd.isPrint(); }
     bool isFlush() const             { return cmd.isFlush(); }
+    bool isAcquire() const           { return cmd.isAcquire(); }
+    bool isRelease() const           { return cmd.isRelease(); }
 
     // Snoop flags
     void assertMemInhibit()
-- 
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