init. 1AQQW051HEADmaster

1 files changed, 88 insertions, 0 deletions

diff --git a/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/IpfCpuCache.s b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/IpfCpuCache.s
new file mode 100644
index 0000000..73d1bac
--- /dev/null
+++ b/EDK/Foundation/Library/RuntimeDxe/EfiRuntimeLib/Ipf/IpfCpuCache.s
@@ -0,0 +1,88 @@
+//++
+// Copyright (c) 2004, 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:
+//
+//    IpfCpuCache.s
+//
+//  Abstract:
+//
+//    Contains Misc assembly procedures to support IPF CPU AP.
+//
+// Revision History:
+//
+//--
+
+.file  "IpfCpuCache.s"
+
+#include  "IpfMacro.i"
+#include  "IpfDefines.h"
+
+//-----------------------------------------------------------------------------
+//++
+// Flush Cache
+//
+// Arguments : 
+
+// Input = in0 = Starting Address to Flush.
+// Input = in1 = Length in bytes.
+// Input = b0 = return branch register.
+// On Entry :
+//
+// Return Value: 
+//
+//  VOID
+//  SalFlushCache (
+//    IN UINT64   BaseToFlush,
+//    IN UINT64   LengthToFlush
+//    );
+//
+//--
+//---------------------------------------------------------------------------
+PROCEDURE_ENTRY (SalFlushCache)
+
+      NESTED_SETUP (5,8,0,0)
+            
+      mov         loc2 = ar.lc
+      
+      mov         loc3 = in0                  // Start address.
+      mov         loc4 = in1;;                // Length in bytes.
+      
+      cmp.eq  p6,p7 = loc4, r0;;               // If Length is zero then don't flush any cache
+      (p6)  br.spnt.many DoneFlushingC;;         
+      
+      add         loc4 = loc4,loc3 
+      mov         loc5 = 1;;
+      sub         loc4 = loc4, loc5 ;; // the End address to flush
+                                         
+      dep         loc3 = r0,loc3,0,5          
+      dep         loc4 = r0,loc4,0,5;;         
+      shr         loc3 = loc3,5             
+      shr         loc4 = loc4,5;;    // 32 byte cache line
+      
+      sub         loc4 = loc4,loc3;; // total flush count, It should be add 1 but 
+                                     // the br.cloop will first execute one time 
+      mov         loc3 = in0                  
+      mov         loc5 = 32      
+      mov         ar.lc = loc4;;
+
+StillFlushingC:
+      fc          loc3;; 
+      sync.i;;
+      srlz.i;;
+      add         loc3 = loc5,loc3;;
+      br.cloop.sptk.few StillFlushingC;;
+
+DoneFlushingC:      
+      mov         ar.lc = loc2     
+      NESTED_RETURN
+
+PROCEDURE_EXIT (SalFlushCache)
+