audk/EdkModulePkg/Library/EdkDxeSalLib/Ipf/AsmEsalServiceLib.s

150 lines
3.5 KiB
ArmAsm

//++
// Copyright (c) 2006, 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:
//
// EsalLib.s
//
// Abstract:
//
//
// Revision History:
//
//--
.file "EsalLib.s"
#include "IpfMacro.i"
//
// Exports
//
.globl GetEsalEntryPoint
//-----------------------------------------------------------------------------
//++
// GetEsalEntryPoint
//
// Return Esal global and PSR register.
//
// On Entry :
//
//
// Return Value:
// r8 = EFI_SAL_SUCCESS
// r9 = Physical Plabel
// r10 = Virtual Plabel
// r11 = psr
//
// As per static calling conventions.
//
//--
//---------------------------------------------------------------------------
PROCEDURE_ENTRY (GetEsalEntryPoint)
NESTED_SETUP (0,8,0,0)
EsalCalcStart:
mov r8 = ip;;
add r8 = (EsalEntryPoint - EsalCalcStart), r8;;
mov r9 = r8;;
add r10 = 0x10, r8;;
mov r11 = psr;;
mov r8 = r0;;
NESTED_RETURN
PROCEDURE_EXIT (GetEsalEntryPoint)
//-----------------------------------------------------------------------------
//++
// SetEsalPhysicalEntryPoint
//
// Set the dispatcher entry point
//
// On Entry:
// in0 = Physical address of Esal Dispatcher
// in1 = Physical GP
//
// Return Value:
// r8 = EFI_SAL_SUCCESS
//
// As per static calling conventions.
//
//--
//---------------------------------------------------------------------------
PROCEDURE_ENTRY (SetEsalPhysicalEntryPoint)
NESTED_SETUP (2,8,0,0)
EsalCalcStart1:
mov r8 = ip;;
add r8 = (EsalEntryPoint - EsalCalcStart1), r8;;
st8 [r8] = in0;;
add r8 = 0x08, r8;;
st8 [r8] = in1;;
mov r8 = r0;;
NESTED_RETURN
PROCEDURE_EXIT (SetEsalPhysicalEntryPoint)
//-----------------------------------------------------------------------------
//++
// SetEsalVirtualEntryPoint
//
// Register physical address of Esal globals.
//
// On Entry :
// in0 = Virtual address of Esal Dispatcher
// in1 = Virtual GP
//
// Return Value:
// r8 = EFI_SAL_ERROR
//
// As per static calling conventions.
//
//--
//---------------------------------------------------------------------------
PROCEDURE_ENTRY (SetEsalVirtualEntryPoint)
NESTED_SETUP (2,8,0,0)
EsalCalcStart2:
mov r8 = ip;;
add r8 = (EsalEntryPoint - EsalCalcStart2), r8;;
add r8 = 0x10, r8;;
st8 [r8] = in0;;
add r8 = 0x08, r8;;
st8 [r8] = in1;;
mov r8 = r0;;
NESTED_RETURN
PROCEDURE_EXIT (SetEsalVirtualEntryPoint)
.align 32
EsalEntryPoint:
data8 0 // Physical Entry
data8 0 // GP
data8 0 // Virtual Entry
data8 0 // GP