diff options
Diffstat (limited to 'roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull')
-rw-r--r-- | roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/BaseCacheAsRamLibNull.inf | 26 | ||||
-rw-r--r-- | roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c | 35 |
2 files changed, 61 insertions, 0 deletions
diff --git a/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/BaseCacheAsRamLibNull.inf b/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/BaseCacheAsRamLibNull.inf new file mode 100644 index 000000000..0c0453254 --- /dev/null +++ b/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/BaseCacheAsRamLibNull.inf @@ -0,0 +1,26 @@ +## @file
+# NULL instance of Base cache as RAM.
+#
+# Copyright (c) 2014 - 2017, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = BaseCacheAsRamLibNull
+ FILE_GUID = 630AEB10-2106-4234-9DB3-836A3663F50D
+ MODULE_TYPE = BASE
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = CacheAsRamLib
+
+[Sources.common]
+ DisableCacheAsRamNull.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ IntelFsp2Pkg/IntelFsp2Pkg.dec
+
+[LibraryClasses]
+
diff --git a/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c b/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c new file mode 100644 index 000000000..78abb6d5d --- /dev/null +++ b/roms/edk2/IntelFsp2Pkg/Library/BaseCacheAsRamLibNull/DisableCacheAsRamNull.c @@ -0,0 +1,35 @@ +/** @file
+
+ Copyright (c) 2014, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Uefi.h>
+#include <Library/BaseLib.h>
+#include <Library/CacheAsRamLib.h>
+
+/**
+ This function disable CAR.
+
+ @param[in] DisableCar TRUE means use INVD, FALSE means use WBINVD
+
+**/
+VOID
+EFIAPI
+DisableCacheAsRam (
+ IN BOOLEAN DisableCar
+ )
+{
+ //
+ // Disable CAR
+ //
+
+ if (DisableCar) {
+ AsmInvd ();
+ } else {
+ AsmWbinvd();
+ }
+
+ return ;
+}
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