diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib')
| -rw-r--r-- | roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.c | 125 | ||||
| -rw-r--r-- | roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf | 28 |
2 files changed, 153 insertions, 0 deletions
diff --git a/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.c b/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.c new file mode 100644 index 000000000..440a5c372 --- /dev/null +++ b/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.c @@ -0,0 +1,125 @@ +/** @file
+
+ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
+ Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+#include <Base.h>
+#include <Library/ArmLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+
+STATIC
+VOID
+CacheRangeOperation (
+ IN VOID *Start,
+ IN UINTN Length,
+ IN LINE_OPERATION LineOperation,
+ IN UINTN LineLength
+ )
+{
+ UINTN ArmCacheLineAlignmentMask = LineLength - 1;
+
+ // Align address (rounding down)
+ UINTN AlignedAddress = (UINTN)Start - ((UINTN)Start & ArmCacheLineAlignmentMask);
+ UINTN EndAddress = (UINTN)Start + Length;
+
+ // Perform the line operation on an address in each cache line
+ while (AlignedAddress < EndAddress) {
+ LineOperation(AlignedAddress);
+ AlignedAddress += LineLength;
+ }
+ ArmDataSynchronizationBarrier ();
+}
+
+VOID
+EFIAPI
+InvalidateInstructionCache (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+VOID
+EFIAPI
+InvalidateDataCache (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+VOID *
+EFIAPI
+InvalidateInstructionCacheRange (
+ IN VOID *Address,
+ IN UINTN Length
+ )
+{
+ CacheRangeOperation (Address, Length, ArmCleanDataCacheEntryToPoUByMVA,
+ ArmDataCacheLineLength ());
+ CacheRangeOperation (Address, Length,
+ ArmInvalidateInstructionCacheEntryToPoUByMVA,
+ ArmInstructionCacheLineLength ());
+
+ ArmInstructionSynchronizationBarrier ();
+
+ return Address;
+}
+
+VOID
+EFIAPI
+WriteBackInvalidateDataCache (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+VOID *
+EFIAPI
+WriteBackInvalidateDataCacheRange (
+ IN VOID *Address,
+ IN UINTN Length
+ )
+{
+ CacheRangeOperation(Address, Length, ArmCleanInvalidateDataCacheEntryByMVA,
+ ArmDataCacheLineLength ());
+ return Address;
+}
+
+VOID
+EFIAPI
+WriteBackDataCache (
+ VOID
+ )
+{
+ ASSERT (FALSE);
+}
+
+VOID *
+EFIAPI
+WriteBackDataCacheRange (
+ IN VOID *Address,
+ IN UINTN Length
+ )
+{
+ CacheRangeOperation(Address, Length, ArmCleanDataCacheEntryByMVA,
+ ArmDataCacheLineLength ());
+ return Address;
+}
+
+VOID *
+EFIAPI
+InvalidateDataCacheRange (
+ IN VOID *Address,
+ IN UINTN Length
+ )
+{
+ CacheRangeOperation(Address, Length, ArmInvalidateDataCacheEntryByMVA,
+ ArmDataCacheLineLength ());
+ return Address;
+}
diff --git a/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf b/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf new file mode 100644 index 000000000..94261e104 --- /dev/null +++ b/roms/edk2/ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf @@ -0,0 +1,28 @@ +#/** @file
+# Implement CacheMaintenanceLib for ARM architectures
+#
+# Copyright (c) 2008, Apple Inc. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#
+#**/
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = ArmCacheMaintenanceLib
+ FILE_GUID = 1A20BE1F-33AD-450C-B49A-7123FCA8B7F9
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CacheMaintenanceLib
+
+[Sources.common]
+ ArmCacheMaintenanceLib.c
+
+[Packages]
+ ArmPkg/ArmPkg.dec
+ MdePkg/MdePkg.dec
+
+[LibraryClasses]
+ ArmLib
+ BaseLib
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