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

ArmPkg/ArmLib: Added new functions to access ARM coprocessors

Browse Source 
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13253 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2012-05-02 20:02:39 +00:00
parent 7fffeef9be
commit 836c350061
8 changed files with 125 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
ArmPkg/Library/ArmLib/Common/ArmLib.c
View File

@@ -1,6 +1,7 @@
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011 - 2012, ARM Ltd. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -70,3 +71,13 @@ ArmSetAuxCrBit (
ArmWriteAuxCr(val);
}
VOID
EFIAPI
ArmUnsetAuxCrBit (
IN UINT32 Bits
)
{
UINT32 val = ArmReadAuxCr();
val &= ~Bits;
ArmWriteAuxCr(val);
}

33
ArmPkg/Library/ArmLib/Common/ArmLibSupport.S
View File

@@ -32,16 +32,21 @@ GCC_ASM_EXPORT(ArmSetTTBR0)
GCC_ASM_EXPORT(ArmSetDomainAccessControl)
GCC_ASM_EXPORT(CPSRMaskInsert)
GCC_ASM_EXPORT(CPSRRead)
GCC_ASM_EXPORT(ArmWriteCPACR)
GCC_ASM_EXPORT(ArmReadCpacr)
GCC_ASM_EXPORT(ArmWriteCpacr)
GCC_ASM_EXPORT(ArmWriteAuxCr)
GCC_ASM_EXPORT(ArmReadAuxCr)
GCC_ASM_EXPORT(ArmInvalidateTlb)
GCC_ASM_EXPORT(ArmUpdateTranslationTableEntry)
GCC_ASM_EXPORT(ArmReadNsacr)
GCC_ASM_EXPORT(ArmWriteNsacr)
GCC_ASM_EXPORT(ArmReadScr)
GCC_ASM_EXPORT(ArmWriteScr)
GCC_ASM_EXPORT(ArmWriteVMBar)
GCC_ASM_EXPORT(ArmReadMVBar)
GCC_ASM_EXPORT(ArmWriteMVBar)
GCC_ASM_EXPORT(ArmCallWFE)
GCC_ASM_EXPORT(ArmCallSEV)
GCC_ASM_EXPORT(ArmReadSctlr)
#------------------------------------------------------------------------------
@@ -88,7 +93,11 @@ ASM_PFX(CPSRRead):
mrs r0, cpsr
bx lr
ASM_PFX(ArmWriteCPACR):
ASM_PFX(ArmReadCpacr):
mrc p15, 0, r0, c1, c0, 2
bx lr
ASM_PFX(ArmWriteCpacr):
mcr p15, 0, r0, c1, c0, 2
isb
bx lr
@@ -136,15 +145,27 @@ ASM_PFX(ArmInvalidateTlb):
isb
bx lr
ASM_PFX(ArmReadNsacr):
mrc p15, 0, r0, c1, c1, 2
bx lr
ASM_PFX(ArmWriteNsacr):
mcr p15, 0, r0, c1, c1, 2
bx lr
ASM_PFX(ArmReadScr):
mrc p15, 0, r0, c1, c1, 0
bx lr
ASM_PFX(ArmWriteScr):
mcr p15, 0, r0, c1, c1, 0
bx lr
ASM_PFX(ArmWriteVMBar):
ASM_PFX(ArmReadMVBar):
mrc p15, 0, r0, c12, c0, 1
bx lr
ASM_PFX(ArmWriteMVBar):
mcr p15, 0, r0, c12, c0, 1
bx lr
@@ -156,4 +177,8 @@ ASM_PFX(ArmCallSEV):
sev
bx lr
ASM_PFX(ArmReadSctlr):
mrc p15, 0, R0, c1, c0, 0 @ Read SCTLR into R0 (Read control register configuration data)
bx lr
ASM_FUNCTION_REMOVE_IF_UNREFERENCED

35
ArmPkg/Library/ArmLib/Common/ArmLibSupport.asm
View File

@@ -1,7 +1,7 @@
//------------------------------------------------------------------------------
//
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
// Copyright (c) 2011, ARM Limited. All rights reserved.
// Copyright (c) 2011-2012, ARM Limited. All rights reserved.
//
// This program and the accompanying materials
// are licensed and made available under the terms and conditions of the BSD License
@@ -32,16 +32,21 @@
EXPORT ArmSetDomainAccessControl
EXPORT CPSRMaskInsert
EXPORT CPSRRead
EXPORT ArmWriteCPACR
EXPORT ArmReadCpacr
EXPORT ArmWriteCpacr
EXPORT ArmWriteAuxCr
EXPORT ArmReadAuxCr
EXPORT ArmInvalidateTlb
EXPORT ArmUpdateTranslationTableEntry
EXPORT ArmReadNsacr
EXPORT ArmWriteNsacr
EXPORT ArmReadScr
EXPORT ArmWriteScr
EXPORT ArmWriteVMBar
EXPORT ArmReadMVBar
EXPORT ArmWriteMVBar
EXPORT ArmCallWFE
EXPORT ArmCallSEV
EXPORT ArmReadSctlr
AREA ArmLibSupport, CODE, READONLY
@@ -88,7 +93,11 @@ CPSRRead
mrs r0, cpsr
bx lr
ArmWriteCPACR
ArmReadCpacr
mrc p15, 0, r0, c1, c0, 2
bx lr
ArmWriteCpacr
mcr p15, 0, r0, c1, c0, 2
isb
bx lr
@@ -136,15 +145,27 @@ ArmInvalidateTlb
isb
bx lr
ArmReadNsacr
mrc p15, 0, r0, c1, c1, 2
bx lr
ArmWriteNsacr
mcr p15, 0, r0, c1, c1, 2
bx lr
ArmReadScr
mrc p15, 0, r0, c1, c1, 0
bx lr
ArmWriteScr
mcr p15, 0, r0, c1, c1, 0
bx lr
ArmWriteVMBar
ArmReadMVBar
mrc p15, 0, r0, c12, c0, 1
bx lr
ArmWriteMVBar
mcr p15, 0, r0, c12, c0, 1
bx lr
@@ -156,4 +177,8 @@ ArmCallSEV
sev
blx lr
ArmReadSctlr
mrc p15, 0, R0, c1, c0, 0 // Read SCTLR into R0 (Read control register configuration data)
bx lr
END