diff options
Diffstat (limited to 'ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm')
-rw-r--r-- | ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm | 306 |
1 files changed, 153 insertions, 153 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm b/ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm index dfee136b2b..fc87828e20 100644 --- a/ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm +++ b/ArmPkg/Library/ArmLib/Arm9/Arm9Support.asm @@ -1,153 +1,153 @@ -//------------------------------------------------------------------------------ -// -// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> -// -// 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. -// -//------------------------------------------------------------------------------ - - EXPORT ArmCleanInvalidateDataCache - EXPORT ArmCleanDataCache - EXPORT ArmInvalidateDataCache - EXPORT ArmInvalidateInstructionCache - EXPORT ArmInvalidateDataCacheEntryByMVA - EXPORT ArmCleanDataCacheEntryByMVA - EXPORT ArmCleanInvalidateDataCacheEntryByMVA - EXPORT ArmEnableMmu - EXPORT ArmDisableMmu - EXPORT ArmMmuEnabled - EXPORT ArmEnableDataCache - EXPORT ArmDisableDataCache - EXPORT ArmEnableInstructionCache - EXPORT ArmDisableInstructionCache - EXPORT ArmEnableBranchPrediction - EXPORT ArmDisableBranchPrediction - EXPORT ArmDataMemoryBarrier - EXPORT ArmDataSyncronizationBarrier - EXPORT ArmInstructionSynchronizationBarrier - - -DC_ON EQU ( 0x1:SHL:2 ) -IC_ON EQU ( 0x1:SHL:12 ) - - AREA ArmCacheLib, CODE, READONLY - PRESERVE8 - - -ArmInvalidateDataCacheEntryByMVA - MCR p15, 0, r0, c7, c6, 1 ; invalidate single data cache line - BX lr - - -ArmCleanDataCacheEntryByMVA - MCR p15, 0, r0, c7, c10, 1 ; clean single data cache line - BX lr - - -ArmCleanInvalidateDataCacheEntryByMVA - MCR p15, 0, r0, c7, c14, 1 ; clean and invalidate single data cache line - BX lr - -ArmEnableInstructionCache - LDR R1,=IC_ON - MRC p15,0,R0,c1,c0,0 ;Read control register configuration data - ORR R0,R0,R1 ;Set I bit - MCR p15,0,r0,c1,c0,0 ;Write control register configuration data - BX LR - -ArmDisableInstructionCache - LDR R1,=IC_ON - MRC p15,0,R0,c1,c0,0 ;Read control register configuration data - BIC R0,R0,R1 ;Clear I bit. - MCR p15,0,r0,c1,c0,0 ;Write control register configuration data - BX LR - -ArmInvalidateInstructionCache - MOV R0,#0 - MCR p15,0,R0,c7,c5,0 ;Invalidate entire instruction cache - MOV R0,#0 - MCR p15,0,R0,c7,c10,4 ;Drain write buffer - BX LR - -ArmEnableMmu - mrc p15,0,R0,c1,c0,0 - orr R0,R0,#1 - mcr p15,0,R0,c1,c0,0 - bx LR - -ArmMmuEnabled - mrc p15,0,R0,c1,c0,0 - and R0,R0,#1 - bx LR - -ArmDisableMmu - mrc p15,0,R0,c1,c0,0 - bic R0,R0,#1 - mcr p15,0,R0,c1,c0,0 - mov R0,#0 - mcr p15,0,R0,c7,c10,4 ;Drain write buffer - bx LR - -ArmEnableDataCache - LDR R1,=DC_ON - MRC p15,0,R0,c1,c0,0 ;Read control register configuration data - ORR R0,R0,R1 ;Set C bit - MCR p15,0,r0,c1,c0,0 ;Write control register configuration data - BX LR - -ArmDisableDataCache - LDR R1,=DC_ON - MRC p15,0,R0,c1,c0,0 ;Read control register configuration data - BIC R0,R0,R1 ;Clear C bit - MCR p15,0,r0,c1,c0,0 ;Write control register configuration data - BX LR - -ArmCleanDataCache - MRC p15,0,r15,c7,c10,3 - BNE ArmCleanDataCache - MOV R0,#0 - MCR p15,0,R0,c7,c10,4 ;Drain write buffer - BX LR - -ArmInvalidateDataCache - MOV R0,#0 - MCR p15,0,R0,c7,c6,0 ;Invalidate entire data cache - MOV R0,#0 - MCR p15,0,R0,c7,c10,4 ;Drain write buffer - BX LR - -ArmCleanInvalidateDataCache - MRC p15,0,r15,c7,c14,3 - BNE ArmCleanInvalidateDataCache - MOV R0,#0 - MCR p15,0,R0,c7,c10,4 ;Drain write buffer - BX LR - -ArmEnableBranchPrediction - bx LR ;Branch prediction is not supported. - -ArmDisableBranchPrediction - bx LR ;Branch prediction is not supported. - -ASM_PFX(ArmDataMemoryBarrier): - mov R0, #0 - mcr P15, #0, R0, C7, C10, #5 ; Check to see if this is correct - bx LR - -ASM_PFX(ArmDataSyncronizationBarrier): - mov R0, #0 - mcr P15, #0, R0, C7, C10, #4 ; Check to see if this is correct - bx LR - -ASM_PFX(ArmInstructionSynchronizationBarrier): - MOV R0, #0 - MCR P15, #0, R0, C7, C5, #4 ; Check to see if this is correct - bx LR - - END +//------------------------------------------------------------------------------
+//
+// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+//
+// 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.
+//
+//------------------------------------------------------------------------------
+
+ EXPORT ArmCleanInvalidateDataCache
+ EXPORT ArmCleanDataCache
+ EXPORT ArmInvalidateDataCache
+ EXPORT ArmInvalidateInstructionCache
+ EXPORT ArmInvalidateDataCacheEntryByMVA
+ EXPORT ArmCleanDataCacheEntryByMVA
+ EXPORT ArmCleanInvalidateDataCacheEntryByMVA
+ EXPORT ArmEnableMmu
+ EXPORT ArmDisableMmu
+ EXPORT ArmMmuEnabled
+ EXPORT ArmEnableDataCache
+ EXPORT ArmDisableDataCache
+ EXPORT ArmEnableInstructionCache
+ EXPORT ArmDisableInstructionCache
+ EXPORT ArmEnableBranchPrediction
+ EXPORT ArmDisableBranchPrediction
+ EXPORT ArmDataMemoryBarrier
+ EXPORT ArmDataSyncronizationBarrier
+ EXPORT ArmInstructionSynchronizationBarrier
+
+
+DC_ON EQU ( 0x1:SHL:2 )
+IC_ON EQU ( 0x1:SHL:12 )
+
+ AREA ArmCacheLib, CODE, READONLY
+ PRESERVE8
+
+
+ArmInvalidateDataCacheEntryByMVA
+ MCR p15, 0, r0, c7, c6, 1 ; invalidate single data cache line
+ BX lr
+
+
+ArmCleanDataCacheEntryByMVA
+ MCR p15, 0, r0, c7, c10, 1 ; clean single data cache line
+ BX lr
+
+
+ArmCleanInvalidateDataCacheEntryByMVA
+ MCR p15, 0, r0, c7, c14, 1 ; clean and invalidate single data cache line
+ BX lr
+
+ArmEnableInstructionCache
+ LDR R1,=IC_ON
+ MRC p15,0,R0,c1,c0,0 ;Read control register configuration data
+ ORR R0,R0,R1 ;Set I bit
+ MCR p15,0,r0,c1,c0,0 ;Write control register configuration data
+ BX LR
+
+ArmDisableInstructionCache
+ LDR R1,=IC_ON
+ MRC p15,0,R0,c1,c0,0 ;Read control register configuration data
+ BIC R0,R0,R1 ;Clear I bit.
+ MCR p15,0,r0,c1,c0,0 ;Write control register configuration data
+ BX LR
+
+ArmInvalidateInstructionCache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c5,0 ;Invalidate entire instruction cache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c10,4 ;Drain write buffer
+ BX LR
+
+ArmEnableMmu
+ mrc p15,0,R0,c1,c0,0
+ orr R0,R0,#1
+ mcr p15,0,R0,c1,c0,0
+ bx LR
+
+ArmMmuEnabled
+ mrc p15,0,R0,c1,c0,0
+ and R0,R0,#1
+ bx LR
+
+ArmDisableMmu
+ mrc p15,0,R0,c1,c0,0
+ bic R0,R0,#1
+ mcr p15,0,R0,c1,c0,0
+ mov R0,#0
+ mcr p15,0,R0,c7,c10,4 ;Drain write buffer
+ bx LR
+
+ArmEnableDataCache
+ LDR R1,=DC_ON
+ MRC p15,0,R0,c1,c0,0 ;Read control register configuration data
+ ORR R0,R0,R1 ;Set C bit
+ MCR p15,0,r0,c1,c0,0 ;Write control register configuration data
+ BX LR
+
+ArmDisableDataCache
+ LDR R1,=DC_ON
+ MRC p15,0,R0,c1,c0,0 ;Read control register configuration data
+ BIC R0,R0,R1 ;Clear C bit
+ MCR p15,0,r0,c1,c0,0 ;Write control register configuration data
+ BX LR
+
+ArmCleanDataCache
+ MRC p15,0,r15,c7,c10,3
+ BNE ArmCleanDataCache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c10,4 ;Drain write buffer
+ BX LR
+
+ArmInvalidateDataCache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c6,0 ;Invalidate entire data cache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c10,4 ;Drain write buffer
+ BX LR
+
+ArmCleanInvalidateDataCache
+ MRC p15,0,r15,c7,c14,3
+ BNE ArmCleanInvalidateDataCache
+ MOV R0,#0
+ MCR p15,0,R0,c7,c10,4 ;Drain write buffer
+ BX LR
+
+ArmEnableBranchPrediction
+ bx LR ;Branch prediction is not supported.
+
+ArmDisableBranchPrediction
+ bx LR ;Branch prediction is not supported.
+
+ASM_PFX(ArmDataMemoryBarrier):
+ mov R0, #0
+ mcr P15, #0, R0, C7, C10, #5 ; Check to see if this is correct
+ bx LR
+
+ASM_PFX(ArmDataSyncronizationBarrier):
+ mov R0, #0
+ mcr P15, #0, R0, C7, C10, #4 ; Check to see if this is correct
+ bx LR
+
+ASM_PFX(ArmInstructionSynchronizationBarrier):
+ MOV R0, #0
+ MCR P15, #0, R0, C7, C5, #4 ; Check to see if this is correct
+ bx LR
+
+ END
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