commit 8eec9d08a6653c86c8c65c70780c21eccb6e2532
author Lajos Molnar <lajos@google.com> Wed May 22 15:08:49 2019 -0700
committer Lajos Molnar <lajos@google.com> Wed May 22 15:11:52 2019 -0700
tree 714573c7f7e2cfe7bb9b19b306e55fb2d67a7d9e
parent f9b3d532eb7422446d7efbd54b15fa87ea60d68a

codec2: cache ion buffers with CPU access flags.

Bug: 131600580
Bug: 132046952
Change-Id: I72a63c18ee1e43bf55507683e01c6746eba6ade9

media/codec2/vndk/C2AllocatorIon.cpp

diff --git a/media/codec2/vndk/C2AllocatorIon.cpp b/media/codec2/vndk/C2AllocatorIon.cpp
index d22153d..752bc46 100644
--- a/media/codec2/vndk/C2AllocatorIon.cpp
+++ b/media/codec2/vndk/C2AllocatorIon.cpp
@@ -554,7 +554,11 @@
         } else {
             *align = 0; // TODO make this 1
             *heapMask = ~0; // default mask
-            *flags = 0; // default flags
+            if (usage.expected & (C2MemoryUsage::CPU_READ | C2MemoryUsage::CPU_WRITE)) {
+                *flags = ION_FLAG_CACHED; // cache CPU accessed buffers
+            } else {
+                *flags = 0;  // default flags
+            }
             res = C2_NO_INIT;
         }
         // add usage to cache