diff options
| author | Heyi Guo <heyi.guo@linaro.org> | 2015-11-23 07:48:33 +0000 |
|---|---|---|
| committer | abiesheuvel <abiesheuvel@Edk2> | 2015-11-23 07:48:33 +0000 |
| commit | e266db592bd41082349bc6b35be809ff2053a299 (patch) | |
| tree | 562182013032bd84aa0e6076f50a98ac29154276 | |
| parent | 78b6eb659d5f40abcac1236bb0019499692c494e (diff) | |
| download | edk2-platforms-e266db592bd41082349bc6b35be809ff2053a299.tar.xz | |
ArmPkg: Invalidate cache after allocating UC memory
It is implied that the memory returned from UncachedMemoryAllocationLib
should have cache invalidated. So we invalidate memory range after
changing memory attribute to uncached.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Heyi Guo <heyi.guo@linaro.org>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18920 6f19259b-4bc3-4df7-8a09-765794883524
| -rw-r--r-- | ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c | 3 | ||||
| -rw-r--r-- | ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf | 1 |
2 files changed, 4 insertions, 0 deletions
diff --git a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c index b859f63c2b..1dfc7402fb 100644 --- a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c +++ b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.c @@ -25,6 +25,7 @@ #include <Library/PcdLib.h>
#include <Library/ArmLib.h>
#include <Library/DxeServicesTableLib.h>
+#include <Library/CacheMaintenanceLib.h>
VOID *
UncachedInternalAllocatePages (
@@ -165,6 +166,8 @@ AllocatePagesFromList ( return Status;
}
+ InvalidateDataCacheRange ((VOID *)(UINTN)Memory, EFI_PAGES_TO_SIZE (Pages));
+
NewNode = AllocatePool (sizeof (FREE_PAGE_NODE));
if (NewNode == NULL) {
ASSERT (FALSE);
diff --git a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf index 0a0b6cbcc8..d7a0f2f792 100644 --- a/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf +++ b/ArmPkg/Library/UncachedMemoryAllocationLib/UncachedMemoryAllocationLib.inf @@ -38,6 +38,7 @@ MemoryAllocationLib
PcdLib
DxeServicesTableLib
+ CacheMaintenanceLib
[Pcd]
gArmTokenSpaceGuid.PcdArmFreeUncachedMemorySizeThreshold
|