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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-09-05 15:12:01 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-09-08 16:49:15 +0100 |
| commit | e51a677dea1b4ec3536e32b590b165dbcd30a87d (patch) | |
| tree | 3e154ff03c2019ecccdb96d0030808813b389fdc /ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | |
| parent | 20d988be998dfb54d00e12853b1a06445a830f5e (diff) | |
| download | edk2-e51a677dea1b4ec3536e32b590b165dbcd30a87d.tar.gz edk2-e51a677dea1b4ec3536e32b590b165dbcd30a87d.tar.bz2 edk2-e51a677dea1b4ec3536e32b590b165dbcd30a87d.zip | |
ArmPkg/ArmBaseLib: clean up directory structure
For historical reasons, the files under ArmLib are split up into 'common'
files under Common/, containing common C files as well as AArch64 and Arm
specific asm files, and ArmV7 and AArch64 files under ArmV7/ and AArch64/,
respectively. This presumably dates back to the time when ArmLib supported
different revisions of the 32-bit architecture (i.e., pre-V7)
Since the PI spec requires V7 or later, we can simplify this to Arm/ and
AArch64, which aligns ArmLib with the majority of other modules that carry
ARM or AArch64 specific code.
So move the files around so that shared files live at the same level as
ArmBaseLib.inf, and ARM/AArch64 specific files live in Arm/ or AArch64/,
respectively.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S')
| -rw-r--r-- | ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S new file mode 100644 index 0000000000..3939bbc6b6 --- /dev/null +++ b/ArmPkg/Library/ArmLib/Arm/ArmLibSupportV7.S @@ -0,0 +1,95 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+# Copyright (c) 2011-2013, ARM Limited. All rights reserved.
+# Copyright (c) 2016, Linaro Limited. 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.
+#
+#------------------------------------------------------------------------------
+
+#include <AsmMacroIoLib.h>
+
+ASM_FUNC(ArmIsMpCore)
+ mrc p15,0,R0,c0,c0,5
+ // Get Multiprocessing extension (bit31) & U bit (bit30)
+ and R0, R0, #0xC0000000
+ // if (bit31 == 1) && (bit30 == 0) then the processor is part of a multiprocessor system
+ cmp R0, #0x80000000
+ moveq R0, #1
+ movne R0, #0
+ bx LR
+
+ASM_FUNC(ArmEnableAsynchronousAbort)
+ cpsie a
+ isb
+ bx LR
+
+ASM_FUNC(ArmDisableAsynchronousAbort)
+ cpsid a
+ isb
+ bx LR
+
+ASM_FUNC(ArmEnableIrq)
+ cpsie i
+ isb
+ bx LR
+
+ASM_FUNC(ArmDisableIrq)
+ cpsid i
+ isb
+ bx LR
+
+ASM_FUNC(ArmEnableFiq)
+ cpsie f
+ isb
+ bx LR
+
+ASM_FUNC(ArmDisableFiq)
+ cpsid f
+ isb
+ bx LR
+
+ASM_FUNC(ArmEnableInterrupts)
+ cpsie if
+ isb
+ bx LR
+
+ASM_FUNC(ArmDisableInterrupts)
+ cpsid if
+ isb
+ bx LR
+
+// UINT32
+// ReadCCSIDR (
+// IN UINT32 CSSELR
+// )
+ASM_FUNC(ReadCCSIDR)
+ mcr p15,2,r0,c0,c0,0 @ Write Cache Size Selection Register (CSSELR)
+ isb
+ mrc p15,1,r0,c0,c0,0 @ Read current CP15 Cache Size ID Register (CCSIDR)
+ bx lr
+
+// UINT32
+// ReadCLIDR (
+// IN UINT32 CSSELR
+// )
+ASM_FUNC(ReadCLIDR)
+ mrc p15,1,r0,c0,c0,1 @ Read CP15 Cache Level ID Register
+ bx lr
+
+ASM_FUNC(ArmReadNsacr)
+ mrc p15, 0, r0, c1, c1, 2
+ bx lr
+
+ASM_FUNC(ArmWriteNsacr)
+ mcr p15, 0, r0, c1, c1, 2
+ bx lr
+
+ASM_FUNCTION_REMOVE_IF_UNREFERENCED
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