sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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.

Browse Source 
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9717 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
AJFISH
2010-01-12 18:49:41 +00:00
parent c2b5ca8b56
commit f45ce9d98c
2 changed files with 72 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

60
ArmPkg/Include/Protocol/VirtualUncachedPages.h Normal file
View File

@ -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