Updating ArmLib.h to add functions needed to turn on paging in CpuDxe. Also added a protocol to enable debugging of DMA issues. DxeCpu driver will produce and the UncachedMemoryAllocationLib can consume.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9717 6f19259b-4bc3-4df7-8a09-765794883524

ArmPkg/Include/Library/ArmLib.h

@@ -151,6 +151,7 @@ ArmInvalidateDataCache (
   VOID
   );
 
+
 VOID
 EFIAPI
 ArmCleanInvalidateDataCache (
@@ -259,6 +260,11 @@ ArmSetTranslationTableBaseAddress (
   IN  VOID  *TranslationTableBase
   );
 
+VOID *
+EFIAPI
+ArmGetTranslationTableBaseAddress (
+  );
+
 VOID
 EFIAPI
 ArmConfigureMmu (
@@ -267,6 +273,12 @@ ArmConfigureMmu (
   OUT UINTN                         *TranslationTableSize  OPTIONAL
   );
   
+BOOLEAN
+EFIAPI
+ArmMmuEnabled (
+  VOID
+  );
+  
 VOID
 EFIAPI
 ArmSwitchProcessorMode (

ArmPkg/Include/Protocol/VirtualUncachedPages.h

@@ -0,0 +1,60 @@
+/** @file
+
+  Copyright (c) 2008-2010 Apple Inc. All rights reserved.<BR>
+
+  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.
+
+**/
+
+#ifndef __VIRTUAL_UNCACHED_PAGES_ROTOCOL_H__
+#define __VIRTUAL_UNCACHED_PAGES_ROTOCOL_H__
+
+//
+// Protocol GUID
+//
+#define VIRTUAL_UNCACHED_PAGES_PROTOCOL_GUID { 0xAD651C7D, 0x3C22, 0x4DBF, { 0x92, 0xe8, 0x38, 0xa7, 0xcd, 0xae, 0x87, 0xb2 } }
+
+
+
+//
+// Protocol interface structure
+//
+typedef struct _VIRTUAL_UNCACHED_PAGES_PROTOCOL  VIRTUAL_UNCACHED_PAGES_PROTOCOL;
+
+
+typedef
+EFI_STATUS
+(EFIAPI *CONVERT_PAGES_TO_UNCACHED_VIRTUAL_ADDRESS) (
+  IN  VIRTUAL_UNCACHED_PAGES_PROTOCOL   *This,
+  IN  EFI_PHYSICAL_ADDRESS              Address,
+  IN  UINTN                             Length,
+  IN  EFI_PHYSICAL_ADDRESS              VirtualMask,
+  OUT UINT64                            *Attributes     OPTIONAL
+  );
+  
+typedef
+EFI_STATUS
+(EFIAPI *FREE_CONVERTED_PAGES) (
+  IN  VIRTUAL_UNCACHED_PAGES_PROTOCOL   *This,
+  IN  EFI_PHYSICAL_ADDRESS              Address,
+  IN  UINTN                             Length,
+  IN  EFI_PHYSICAL_ADDRESS              VirtualMask,
+  IN  UINT64                            Attributes
+  );
+
+
+
+struct _VIRTUAL_UNCACHED_PAGES_PROTOCOL {
+  CONVERT_PAGES_TO_UNCACHED_VIRTUAL_ADDRESS  ConvertPages;
+  FREE_CONVERTED_PAGES                       FreeConvertedPages;
+};
+
+extern EFI_GUID gVirtualUncachedPagesProtocolGuid;
+
+#endif