diff --git a/drivers/gpu/nvgpu/common/mm/gmmu/pd_cache.c b/drivers/gpu/nvgpu/common/mm/gmmu/pd_cache.c
index 2e8294123..ff41343ff 100644
--- a/drivers/gpu/nvgpu/common/mm/gmmu/pd_cache.c
+++ b/drivers/gpu/nvgpu/common/mm/gmmu/pd_cache.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2020, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2017-2021, NVIDIA CORPORATION.  All rights reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -449,7 +449,7 @@ static void nvgpu_pd_cache_do_free(struct gk20a *g,
 		 * fill them with zero.
 		 */
 		if ((nvgpu_iommuable(g)) &&
-			(NVGPU_PD_CACHE_SIZE > PAGE_SIZE) &&
+			(NVGPU_PD_CACHE_SIZE > NVGPU_CPU_SMALL_PAGE_SIZE) &&
 			(pd->mem->cpu_va != NULL)) {
 			(void)memset(((u8 *)pd->mem->cpu_va + pd->mem_offs), 0,
 					pd->pd_size);
diff --git a/drivers/gpu/nvgpu/include/nvgpu/utils.h b/drivers/gpu/nvgpu/include/nvgpu/utils.h
index 2e903f58f..e59e6265e 100644
--- a/drivers/gpu/nvgpu/include/nvgpu/utils.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/utils.h
@@ -36,7 +36,9 @@
  * PAGE_SIZE is OS specific and can vary across OSes. Depending on the OS it maybe
  * defined to 4K or 64K.
  */
-#define NVGPU_CPU_PAGE_SIZE	PAGE_SIZE
+#define NVGPU_CPU_PAGE_SIZE		PAGE_SIZE
+
+#define NVGPU_CPU_SMALL_PAGE_SIZE	4096U
 
 /**
  * @file