From b7c51c9cf4864df6aabb99a1ae843becd577237c Mon Sep 17 00:00:00 2001
From: raywu <raywu0301@gmail.com>
Date: Fri, 15 Jun 2018 00:00:50 +0800
Subject: init. 1AQQW051

---
 Core/CPU/x64/MiscLib/Misc.asm | 124 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 Core/CPU/x64/MiscLib/Misc.asm

(limited to 'Core/CPU/x64/MiscLib/Misc.asm')

diff --git a/Core/CPU/x64/MiscLib/Misc.asm b/Core/CPU/x64/MiscLib/Misc.asm
new file mode 100644
index 0000000..facdd89
--- /dev/null
+++ b/Core/CPU/x64/MiscLib/Misc.asm
@@ -0,0 +1,124 @@
+;**********************************************************************
+;**********************************************************************
+;**                                                                  **
+;**        (C)Copyright 1985-2010, American Megatrends, Inc.         **
+;**                                                                  **
+;**                       All Rights Reserved.                       **
+;**                                                                  **
+;**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093        **
+;**                                                                  **
+;**                       Phone: (770)-246-8600                      **
+;**                                                                  **
+;**********************************************************************
+;**********************************************************************
+
+;**********************************************************************
+; $Header: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/CPU Core/MiscX64Lib/Misc.asm 2     10/04/12 9:17a Davidhsieh $
+;
+; $Revision: 2 $
+;
+; $Date: 10/04/12 9:17a $
+;**********************************************************************
+; Revision History
+; ----------------
+; $Log: /Alaska/SOURCE/Modules/SharkBayRefCodes/Haswell/AMI Cpu PKG/CPU Core/MiscX64Lib/Misc.asm $
+; 
+; 2     10/04/12 9:17a Davidhsieh
+; Add MpMtrrSynchUpEntry and MpMtrrSynchUpExit procedures
+; 
+; 1     5/15/12 5:41a Davidhsieh
+; 
+; 1     5/08/12 6:02a Dukeyeh
+; [TAG]  		EIP89382
+; [Category]  	Improvement
+; [Description]  	clear direction flag inside Timer callback function.
+; [Files]  		MiscX64Lib.cif
+; Misc.asm
+; MiscX64Lib.sdl
+; MiscX64Lib.mak
+; 
+; 6     1/13/10 2:13p Felixp
+; 
+;**********************************************************************
+;<AMI_FHDR_START>
+;
+; Name: Misc
+;
+; Description:	
+;
+;<AMI_FHDR_END>
+;**********************************************************************
+
+.code
+
+ClearDirectionFlag Proc
+    cld
+    ret
+ClearDirectionFlag endp
+
+MpMtrrSynchUpEntry  PROC        PUBLIC
+    ;
+    ; Enter no fill cache mode, CD=1(Bit30), NW=0 (Bit29)
+    ;
+    mov rax, cr0
+    and rax, 0DFFFFFFFh
+    or  rax, 040000000h
+    mov cr0, rax
+    ;
+    ; Flush cache
+    ;
+    wbinvd
+    ;
+    ; Clear PGE flag Bit 7
+    ;
+    mov rax, cr4
+    mov rdx, rax
+    and rax, 0FFFFFF7Fh
+    mov cr4, rax
+    ;
+    ; Flush all TLBs
+    ;
+    mov rax, cr3
+    mov cr3, rax
+    
+    mov rax, rdx
+    
+    ret
+    
+MpMtrrSynchUpEntry  ENDP
+    
+MpMtrrSynchUpExit  PROC        PUBLIC
+    ;
+    ; Flush all TLBs the second time
+    ;
+    mov rax, cr3
+    mov cr3, rax
+    ;
+    ; Enable Normal Mode caching CD=NW=0, CD(Bit30), NW(Bit29)
+    ;
+    mov rax, cr0
+    and rax, 09FFFFFFFh
+    mov cr0, rax
+    ;
+    ; Set PGE Flag in CR4 if set
+    ;
+    mov cr4, rcx
+    ret
+
+MpMtrrSynchUpExit  ENDP
+
+END
+
+;**********************************************************************
+;**********************************************************************
+;**                                                                  **
+;**        (C)Copyright 1985-2010, American Megatrends, Inc.         **
+;**                                                                  **
+;**                       All Rights Reserved.                       **
+;**                                                                  **
+;**      5555 Oakbrook Parkway, Suite 200, Norcross, GA 30093        **
+;**                                                                  **
+;**                       Phone: (770)-246-8600                      **
+;**                                                                  **
+;**********************************************************************
+;**********************************************************************
\ No newline at end of file
-- 
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