From f90eb36c1558f2728843bd81bda4958aaa4236a6 Mon Sep 17 00:00:00 2001
From: qwang12 <qwang12@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Tue, 2 Dec 2008 14:35:15 +0000
Subject: 1) Add in EcpEfiBreakPoint and EcpMemoryFence which will be defined
 as EFI_BREAKPOINT and MEMORY_FENCE.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6806 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../Foundation/Library/Pei/Include/PeiLib.h        | 54 ++++++++++++++++++++++
 .../Foundation/Library/Pei/PeiLib/Ipf/AsmCpuMisc.s | 44 ++++++++++++++++++
 .../Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf  |  5 ++
 3 files changed, 103 insertions(+)
 create mode 100644 EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/AsmCpuMisc.s

(limited to 'EdkCompatibilityPkg/Foundation/Library/Pei')

diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/Include/PeiLib.h b/EdkCompatibilityPkg/Foundation/Library/Pei/Include/PeiLib.h
index 24090b65d4..9202f0318b 100644
--- a/EdkCompatibilityPkg/Foundation/Library/Pei/Include/PeiLib.h
+++ b/EdkCompatibilityPkg/Foundation/Library/Pei/Include/PeiLib.h
@@ -31,6 +31,60 @@ Abstract:
 #include EFI_GUID_DEFINITION (PeiPeCoffLoader)
 #include EFI_PPI_DEFINITION (FindFv)
 
+#if defined(__GNUC__) && defined(ECP_CPU_IPF)
+
+VOID
+EFIAPI
+EcpEfiBreakPoint (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  Generates a breakpoint on the CPU.
+
+  Generates a breakpoint on the CPU. The breakpoint must be implemented such
+  that code can resume normal execution after the breakpoint.
+
+Arguments:
+
+  VOID
+
+Returns: 
+
+  VOID
+
+--*/
+;
+
+VOID
+EFIAPI
+EcpMemoryFence (
+  VOID
+  )
+/*++
+
+Routine Description:
+
+  Used to serialize load and store operations.
+
+  All loads and stores that proceed calls to this function are guaranteed to be
+  globally visible when this function returns.
+
+Arguments:
+
+  VOID
+
+Returns: 
+
+  VOID
+
+--*/
+;
+
+#endif
+
 
 #if (PI_SPECIFICATION_VERSION >= 0x00010000)
 
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/AsmCpuMisc.s b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/AsmCpuMisc.s
new file mode 100644
index 0000000000..fbb19887cd
--- /dev/null
+++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/Ipf/AsmCpuMisc.s
@@ -0,0 +1,44 @@
+/// @file
+///   Contains an implementation of EcpEfiBreakPoint and EcpMemoryFence on Itanium-based
+///   architecture.
+///
+/// Copyright (c) 2008, Intel Corporation
+/// All rights reserved. This program and the accompanying materials
+/// are licensed and made available under the terms and conditions of the BSD License
+/// which accompanies this distribution.  The full text of the license may be found at
+/// http://opensource.org/licenses/bsd-license.php
+///
+/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+///
+/// Module Name:  AsmCpuMisc.s
+///
+///
+
+
+.text
+.proc EcpEfiBreakPoint
+.type EcpEfiBreakPoint, @function
+
+EcpEfiBreakPoint::
+        break.i 0;;
+        br.ret.dpnt    b0;;
+
+.endp EcpEfiBreakPoint
+
+.proc EcpMemoryFence
+.type EcpMemoryFence, @function
+
+EcpMemoryFence::
+        mf;;    // memory access ordering
+
+        // do we need the mf.a also here?
+        mf.a    // wait for any IO to complete?
+        
+        // not sure if we need serialization here, just put it, in case...
+        
+        srlz.d;;
+        srlz.i;;
+        
+        br.ret.dpnt    b0;;
+.endp EcpMemoryFence
\ No newline at end of file
diff --git a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf
index da349ffc8e..62e60740d3 100644
--- a/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf
+++ b/EdkCompatibilityPkg/Foundation/Library/Pei/PeiLib/PeiLib_Edk2.inf
@@ -83,6 +83,11 @@ COMPONENT_TYPE    = LIBRARY
   Ipf/Ia_64Gen.h
   Ipf/HwAccess.s
   Ipf/PeiServicePointer.c
+  #
+  # Only for CYGWINGCC IPF tool chain, EFI_BREAKPOINT and MEMORY_FENCE
+  # is defined as two functions EcpEfiBreakPoint and EcpMemoryFence.
+  #
+  Ipf/AsmCpuMisc.s | GCC
   
   
 [libraries.common]
-- 
cgit v1.2.3