diff options
Diffstat (limited to 'ArmPkg/Library/ArmLib/Arm11/Arm11Support.S')
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm11/Arm11Support.S | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm11/Arm11Support.S b/ArmPkg/Library/ArmLib/Arm11/Arm11Support.S new file mode 100644 index 0000000000..eec8f20b4e --- /dev/null +++ b/ArmPkg/Library/ArmLib/Arm11/Arm11Support.S @@ -0,0 +1,129 @@ +#------------------------------------------------------------------------------ +# +# Copyright (c) 2008-2009 Apple Inc. All rights reserved. +# +# 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. +# +#------------------------------------------------------------------------------ + +.text +.align 2 +.globl ASM_PFX(ArmCleanInvalidateDataCache) +.globl ASM_PFX(ArmCleanDataCache) +.globl ASM_PFX(ArmInvalidateDataCache) +.globl ASM_PFX(ArmInvalidateInstructionCache) +.globl ASM_PFX(ArmInvalidateDataCacheEntryByMVA) +.globl ASM_PFX(ArmCleanDataCacheEntryByMVA) +.globl ASM_PFX(ArmCleanInvalidateDataCacheEntryByMVA) +.globl ASM_PFX(ArmEnableMmu) +.globl ASM_PFX(ArmDisableMmu) +.globl ASM_PFX(ArmEnableDataCache) +.globl ASM_PFX(ArmDisableDataCache) +.globl ASM_PFX(ArmEnableInstructionCache) +.globl ASM_PFX(ArmDisableInstructionCache) +.globl ASM_PFX(ArmEnableBranchPrediction) +.globl ASM_PFX(ArmDisableBranchPrediction) + +.set DC_ON, (0x1<<2) +.set IC_ON, (0x1<<12) +.set XP_ON, (0x1<<23) + +ASM_PFX(ArmInvalidateDataCacheEntryByMVA): + mcr p15, 0, r0, c7, c6, 1 @invalidate single data cache line + bx lr + + +ASM_PFX(ArmCleanDataCacheEntryByMVA): + mcr p15, 0, r0, c7, c10, 1 @clean single data cache line + bx lr + + +ASM_PFX(ArmCleanInvalidateDataCacheEntryByMVA): + mcr p15, 0, r0, c7, c14, 1 @clean and invalidate single data cache line + bx lr + + +ASM_PFX(ArmCleanDataCache): + mcr p15, 0, r0, c7, c10, 0 @ clean entire data cache + bx lr + + +ASM_PFX(ArmCleanInvalidateDataCache): + mcr p15, 0, r0, c7, c14, 0 @ clean and invalidate entire data cache + bx lr + + +ASM_PFX(ArmInvalidateDataCache): + mcr p15, 0, r0, c7, c6, 0 @ invalidate entire data cache + bx lr + + +ASM_PFX(ArmInvalidateInstructionCache): + mcr p15, 0, r0, c7, c5, 0 @invalidate entire instruction cache + mov R0,#0 + mcr p15,0,R0,c7,c5,4 @Flush Prefetch buffer + bx lr + +ASM_PFX(ArmEnableMmu): + mrc p15,0,R0,c1,c0,0 + orr R0,R0,#1 + mcr p15,0,R0,c1,c0,0 + bx LR + +ASM_PFX(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 @Data synchronization barrier + mov R0,#0 + mcr p15,0,R0,c7,c5,4 @Flush Prefetch buffer + bx LR + +ASM_PFX(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 + +ASM_PFX(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 + +ASM_PFX(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 + +ASM_PFX(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 + +ASM_PFX(ArmEnableBranchPrediction): + mrc p15, 0, r0, c1, c0, 0 + orr r0, r0, #0x00000800 + mcr p15, 0, r0, c1, c0, 0 + bx LR + +ASM_PFX(ArmDisableBranchPrediction): + mrc p15, 0, r0, c1, c0, 0 + bic r0, r0, #0x00000800 + mcr p15, 0, r0, c1, c0, 0 + bx LR + +ASM_FUNCTION_REMOVE_IF_UNREFERENCED |