X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=IntelFsp2Pkg%2FInclude%2FLibrary%2FCacheLib.h;fp=IntelFsp2Pkg%2FInclude%2FLibrary%2FCacheLib.h;h=909ae928f11882325cb30473b6d21963157a1935;hp=0000000000000000000000000000000000000000;hb=cf1d454983fb4fd3b580a92bd242310467a5eaef;hpb=c9802c45647d84e71b4620fdfff0c4bd88cf5acb

diff --git a/IntelFsp2Pkg/Include/Library/CacheLib.h b/IntelFsp2Pkg/Include/Library/CacheLib.h
new file mode 100644
index 0000000000..909ae928f1
--- /dev/null
+++ b/IntelFsp2Pkg/Include/Library/CacheLib.h
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+/** @file
+
+  Copyright (c) 2014, Intel Corporation. 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.
+
+**/
+
+#ifndef _CACHE_LIB_H_
+#define _CACHE_LIB_H_
+
+//
+// EFI_MEMORY_CACHE_TYPE
+//
+typedef INT32 EFI_MEMORY_CACHE_TYPE;
+
+#define EFI_CACHE_UNCACHEABLE                 0
+#define EFI_CACHE_WRITECOMBINING              1
+#define EFI_CACHE_WRITETHROUGH                4
+#define EFI_CACHE_WRITEPROTECTED              5
+#define EFI_CACHE_WRITEBACK                   6
+
+/**
+ Reset all the MTRRs to a known state.
+
+  @retval  EFI_SUCCESS All MTRRs have been reset successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+ResetCacheAttributes (
+  VOID
+  );
+
+/**
+  Given the memory range and cache type, programs the MTRRs.
+
+  @param[in] MemoryAddress           Base Address of Memory to program MTRR.
+  @param[in] MemoryLength            Length of Memory to program MTRR.
+  @param[in] MemoryCacheType         Cache Type.
+
+  @retval EFI_SUCCESS            Mtrr are set successfully.
+  @retval EFI_LOAD_ERROR         No empty MTRRs to use.
+  @retval EFI_INVALID_PARAMETER  The input parameter is not valid.
+  @retval others                 An error occurs when setting MTTR.
+
+**/
+EFI_STATUS
+EFIAPI
+SetCacheAttributes (
+  IN  EFI_PHYSICAL_ADDRESS      MemoryAddress,
+  IN  UINT64                    MemoryLength,
+  IN  EFI_MEMORY_CACHE_TYPE     MemoryCacheType
+  );
+
+#endif
+