diff options
author | wdenk <wdenk> | 2002-11-19 11:04:11 +0000 |
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committer | wdenk <wdenk> | 2002-11-19 11:04:11 +0000 |
commit | c7de829c796978e519984df2f1c8cfcf921a39a4 (patch) | |
tree | 43e42aa9a09f5265783c1622a5cea080471ef50e /board/MAI/bios_emulator/scitech/include/mtrr.h | |
parent | 2262cfeef91458b01a1bfe3812ccbbfdf8b82807 (diff) |
* Patch by Thomas Frieden, 13 Nov 2002:
Add code for AmigaOne board
(preliminary merge to U-Boot, still WIP)
* Patch by Jon Diekema, 12 Nov 2002:
- Adding URL for IEEE OUI lookup
- Making the autoboot #defines dependent on CONFIG_AUTOBOOT_KEYED
being defined.
- In the CONFIG_EXTRA_ENV_SETTINGS #define, the root-on-initrd and
root-on-nfs macros are designed to switch how the default boot
method gets defined.
Diffstat (limited to 'board/MAI/bios_emulator/scitech/include/mtrr.h')
-rw-r--r-- | board/MAI/bios_emulator/scitech/include/mtrr.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/board/MAI/bios_emulator/scitech/include/mtrr.h b/board/MAI/bios_emulator/scitech/include/mtrr.h new file mode 100644 index 0000000000..b29812c928 --- /dev/null +++ b/board/MAI/bios_emulator/scitech/include/mtrr.h @@ -0,0 +1,72 @@ +/**************************************************************************** +* +* SciTech OS Portability Manager Library +* +* ======================================================================== +* +* The contents of this file are subject to the SciTech MGL Public +* License Version 1.0 (the "License"); you may not use this file +* except in compliance with the License. You may obtain a copy of +* the License at http://www.scitechsoft.com/mgl-license.txt +* +* Software distributed under the License is distributed on an +* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or +* implied. See the License for the specific language governing +* rights and limitations under the License. +* +* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc. +* +* The Initial Developer of the Original Code is SciTech Software, Inc. +* All Rights Reserved. +* +* ======================================================================== +* +* Language: ANSI C +* Environment: Any +* +* Description: Include file defining the external ring 0 helper functions +* needed by the MTRR module. These functions may be included +* directly for native ring 0 device drivers, or they may +* be calls down to a ring 0 helper device driver where +* appropriate (or the entire MTRR module may be located in +* the device driver if the device driver is 32-bit). +* +****************************************************************************/ + +#ifndef __MTRR_H +#define __MTRR_H + +#include "scitech.h" + +/*--------------------------- Function Prototypes -------------------------*/ + +#ifdef __cplusplus +extern "C" { /* Use "C" linkage when in C++ mode */ +#endif + +/* Internal functions (requires ring 0 access or helper functions!) */ + +void MTRR_init(void); +int MTRR_enableWriteCombine(ulong base,ulong size,uint type); + +/* External assembler helper functions */ + +ibool _ASMAPI _MTRR_isRing0(void); +ulong _ASMAPI _MTRR_disableInt(void); +void _ASMAPI _MTRR_restoreInt(ulong flags); +ulong _ASMAPI _MTRR_saveCR4(void); +void _ASMAPI _MTRR_restoreCR4(ulong cr4Val); +uchar _ASMAPI _MTRR_getCx86(uchar reg); +void _ASMAPI _MTRR_setCx86(uchar reg,uchar data); +#ifdef __16BIT__ +void _ASMAPI _MTRR_readMSR(ulong reg, ulong far *eax, ulong far *edx); +#else +void _ASMAPI _MTRR_readMSR(ulong reg, ulong *eax, ulong *edx); +#endif +void _ASMAPI _MTRR_writeMSR(ulong reg, ulong eax, ulong edx); + +#ifdef __cplusplus +} /* End of "C" linkage for C++ */ +#endif + +#endif /* __MTRR_H */ |