diff --git a/liboverlay/overlayMdssRot.cpp b/liboverlay/overlayMdssRot.cpp
index 95f22c6..c6d5332 100644
--- a/liboverlay/overlayMdssRot.cpp
+++ b/liboverlay/overlayMdssRot.cpp
@@ -32,7 +32,6 @@
 #define MDSS_MDP_ROT_ONLY 0x80
 #endif
 
-#define SIZE_1M 0x00100000
 #define MDSS_ROT_MASK (MDP_ROT_90 | MDP_FLIP_UD | MDP_FLIP_LR)
 
 namespace ovutils = overlay::utils;
@@ -261,9 +260,6 @@
         opBufSize = Rotator::calcOutputBufSize(destWhf);
     }
 
-    if (mRotInfo.flags & utils::OV_MDP_SECURE_OVERLAY_SESSION)
-        opBufSize = utils::align(opBufSize, SIZE_1M);
-
     return opBufSize;
 }
 
diff --git a/liboverlay/overlayMem.h b/liboverlay/overlayMem.h
index 061d197..5e0db6f 100644
--- a/liboverlay/overlayMem.h
+++ b/liboverlay/overlayMem.h
@@ -38,6 +38,7 @@
 
 #include "gralloc_priv.h"
 #include "overlayUtils.h"
+#define SIZE_1M 0x00100000
 
 namespace overlay {
 
@@ -118,24 +119,28 @@
 {
     alloc_data data;
     int allocFlags = GRALLOC_USAGE_PRIVATE_IOMMU_HEAP;
-    if(isSecure) {
-        allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP;
-        allocFlags |= GRALLOC_USAGE_PROTECTED;
-    }
-    // Allocate uncached rotator buffers
-    allocFlags |= GRALLOC_USAGE_PRIVATE_UNCACHED;
-
     int err = 0;
     OVASSERT(numbufs && bufSz, "numbufs=%d bufSz=%d", numbufs, bufSz);
 
-    mBufSz = bufSz;
+    if(isSecure) {
+        allocFlags = GRALLOC_USAGE_PRIVATE_MM_HEAP;
+        allocFlags |= GRALLOC_USAGE_PROTECTED;
+        mBufSz = utils::align(bufSz, SIZE_1M);
+        data.align = SIZE_1M;
+    } else {
+        mBufSz = bufSz;
+        data.align = getpagesize();
+    }
+
+    // Allocate uncached rotator buffers
+    allocFlags |= GRALLOC_USAGE_PRIVATE_UNCACHED;
+
     mNumBuffers = numbufs;
 
     data.base = 0;
     data.fd = -1;
     data.offset = 0;
     data.size = mBufSz * mNumBuffers;
-    data.align = getpagesize();
     data.uncached = true;
 
     err = mAlloc->allocate(data, allocFlags);
diff --git a/liboverlay/overlayWriteback.cpp b/liboverlay/overlayWriteback.cpp
index f1f0eb5..5c6d773 100644
--- a/liboverlay/overlayWriteback.cpp
+++ b/liboverlay/overlayWriteback.cpp
@@ -37,9 +37,6 @@
 
 //=========== class WritebackMem ==============================================
 bool WritebackMem::manageMem(uint32_t size, bool isSecure) {
-    if(isSecure) {
-        size = utils::align(size, SIZE_1M);
-    }
     if(mBuf.bufSz() == size) {
         return true;
     }