gpu: ion: Add secure CMA heap
CMA can now be used for large contiguous allocations. Add
a dedicated heap for secure use cases. This heap intentionally
removes some functionality such as mmaping to userspace for
secure requirements.
Change-Id: I7de94499bd005b405fed546826dae44ae8bc4e20
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
diff --git a/drivers/gpu/ion/ion_heap.c b/drivers/gpu/ion/ion_heap.c
index 98c1a8c..ff2b8dd 100644
--- a/drivers/gpu/ion/ion_heap.c
+++ b/drivers/gpu/ion/ion_heap.c
@@ -2,7 +2,7 @@
* drivers/gpu/ion/ion_heap.c
*
* Copyright (C) 2011 Google, Inc.
- * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
@@ -44,6 +44,10 @@
case ION_HEAP_TYPE_DMA:
heap = ion_cma_heap_create(heap_data);
break;
+
+ case ION_HEAP_TYPE_SECURE_DMA:
+ heap = ion_secure_cma_heap_create(heap_data);
+ break;
#endif
default:
pr_err("%s: Invalid heap type %d\n", __func__,
@@ -89,6 +93,9 @@
case ION_HEAP_TYPE_DMA:
ion_cma_heap_destroy(heap);
break;
+ case ION_HEAP_TYPE_SECURE_DMA:
+ ion_secure_cma_heap_destroy(heap);
+ break;
#endif
default:
pr_err("%s: Invalid heap type %d\n", __func__,