ArmPkg/ArmMmuLib ARM: remove cache maintenance of block mapping contents

[mirror_edk2.git] / ArmPkg / Library / ArmMmuLib / Arm / ArmMmuLibCore.c

diff --git a/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c b/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c
index 774a7ccf59c0f92f81fa4e8ff202aac815ae589e..9eb6dd8d25c844d084b534c6dd9a2936d3c66c1f 100644 (file)
--- a/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c
+++ b/ArmPkg/Library/ArmMmuLib/Arm/ArmMmuLibCore.c
@@ -597,12 +597,6 @@ UpdatePageEntries (
     if (CurrentPageTableEntry  != PageTableEntry) {\r
       Mva = (VOID *)(UINTN)((((UINTN)FirstLevelIdx) << TT_DESCRIPTOR_SECTION_BASE_SHIFT) + (PageTableIndex << TT_DESCRIPTOR_PAGE_BASE_SHIFT));\r
 \r
-      // Clean/invalidate the cache for this page, but only\r
-      // if we are modifying the memory type attributes\r
-      if (((CurrentPageTableEntry ^ PageTableEntry) & TT_DESCRIPTOR_PAGE_CACHE_POLICY_MASK) != 0) {\r
-        WriteBackInvalidateDataCacheRange (Mva, TT_DESCRIPTOR_PAGE_SIZE);\r
-      }\r
-\r
       // Only need to update if we are changing the entry\r
       PageTable[PageTableIndex] = PageTableEntry;\r
       ArmUpdateTranslationTableEntry ((VOID *)&PageTable[PageTableIndex], Mva);\r
@@ -718,12 +712,6 @@ UpdateSectionEntries (
       if (CurrentDescriptor  != Descriptor) {\r
         Mva = (VOID *)(UINTN)(((UINTN)FirstLevelTable) << TT_DESCRIPTOR_SECTION_BASE_SHIFT);\r
 \r
-        // Clean/invalidate the cache for this section, but only\r
-        // if we are modifying the memory type attributes\r
-        if (((CurrentDescriptor ^ Descriptor) & TT_DESCRIPTOR_SECTION_CACHE_POLICY_MASK) != 0) {\r
-          WriteBackInvalidateDataCacheRange (Mva, SIZE_1MB);\r
-        }\r
-\r
         // Only need to update if we are changing the descriptor\r
         FirstLevelTable[FirstLevelIdx + i] = Descriptor;\r
         ArmUpdateTranslationTableEntry ((VOID *)&FirstLevelTable[FirstLevelIdx + i], Mva);\r