Sync up ArmPkg with patch from mailing list. Changed name of BdsLib.h to BdsUnixLib...

[mirror_edk2.git] / ArmPkg / Library / ArmLib / Common / ArmLibSupport.S

diff --git a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
index d80100c788b660ca8f48ebf6b04b8baf4e8add06..9b144c82c5918fb4d2ea720936d63f7f097f3812 100644 (file)
--- a/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
+++ b/ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
@@ -1,8 +1,8 @@
 #------------------------------------------------------------------------------ 
 #
-# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
 #
-# All rights reserved. This program and the accompanying materials
+# 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
@@ -12,18 +12,24 @@
 #
 #------------------------------------------------------------------------------
 
+#include <AsmMacroIoLib.h>
+
 .text
 .align 2
-.globl ASM_PFX(Cp15IdCode)
-.globl ASM_PFX(Cp15CacheInfo)
-.globl ASM_PFX(ArmEnableInterrupts)
-.globl ASM_PFX(ArmDisableInterrupts)
-.globl ASM_PFX(ArmGetInterruptState)
-.globl ASM_PFX(ArmInvalidateTlb)
-.globl ASM_PFX(ArmSetTranslationTableBaseAddress)
-.globl ASM_PFX(ArmSetDomainAccessControl)
-.globl ASM_PFX(CPSRMaskInsert)
-.globl ASM_PFX(CPSRRead)
+GCC_ASM_EXPORT(Cp15IdCode)
+GCC_ASM_EXPORT(Cp15CacheInfo)
+GCC_ASM_EXPORT(ArmEnableInterrupts)
+GCC_ASM_EXPORT(ArmDisableInterrupts)
+GCC_ASM_EXPORT(ArmGetInterruptState)
+GCC_ASM_EXPORT(ArmEnableFiq)
+GCC_ASM_EXPORT(ArmDisableFiq)
+GCC_ASM_EXPORT(ArmGetFiqState)
+GCC_ASM_EXPORT(ArmInvalidateTlb)
+GCC_ASM_EXPORT(ArmSetTTBR0)
+GCC_ASM_EXPORT(ArmGetTTBR0BaseAddress)
+GCC_ASM_EXPORT(ArmSetDomainAccessControl)
+GCC_ASM_EXPORT(CPSRMaskInsert)
+GCC_ASM_EXPORT(CPSRRead)
 
 #------------------------------------------------------------------------------
 
@@ -57,15 +63,44 @@ ASM_PFX(ArmGetInterruptState):
        movne   R0,#0
        bx      LR
 
+ASM_PFX(ArmEnableFiq):
+       mrs     R0,CPSR
+       bic     R0,R0,#0x40             @Enable FIQ interrupts
+       msr     CPSR_c,R0
+       bx      LR
+
+ASM_PFX(ArmDisableFiq):
+       mrs     R0,CPSR
+       orr     R1,R0,#0x40             @Disable FIQ interrupts
+       msr     CPSR_c,R1
+  tst     R0,#0x80
+  moveq   R0,#1
+  movne   R0,#0
+       bx      LR
+
+ASM_PFX(ArmGetFiqState):
+       mrs     R0,CPSR
+       tst     R0,#0x80            @Check if FIQ is enabled.
+       moveq   R0,#1
+       movne   R0,#0
+       bx      LR
+
 ASM_PFX(ArmInvalidateTlb):
   mov     r0,#0
   mcr     p15,0,r0,c8,c7,0
   bx      lr
 
-ASM_PFX(ArmSetTranslationTableBaseAddress):
+ASM_PFX(ArmSetTTBR0):
   mcr     p15,0,r0,c2,c0,0
   bx      lr
 
+ASM_PFX(ArmGetTTBR0BaseAddress):
+  mrc     p15,0,r0,c2,c0,0
+  LoadConstantToReg(0xFFFFC000, r1)   @  and     r0, r0, #0xFFFFC000
+  and     r0, r0, r1
+  bx      lr
+
+
 ASM_PFX(ArmSetDomainAccessControl):
   mcr     p15,0,r0,c3,c0,0
   bx      lr