commit d36721167e48032fbc2f08496aae9fa0bd585840
author Lingfeng Yang <lfy@google.com> Wed Aug 04 17:00:07 2021 -0700
committer Lingfeng Yang <lfy@google.com> Thu Aug 05 19:53:29 2021 -0700
tree 2ac156cce3f9e262149fa5c3f05d04570cb88a83
parent 46b2f1ccbfbc2334b77c779adc49c258eac1a668

Optimize mapper unlock()

- copying to dma from dma: skip if ptr is same
- Always go down the DMA path for unlock() via never
  doing sub-region updates
- skip unlock write if we didnt lock for write

Bug: 189960317
Test: ./cts-tradefed run cts -m CtsViewTestCases -t
android.view.cts.ASurfaceControlBackPressureTest#testSurfaceTransaction_setEnableBackPressure
fails fewer frames
Test: ./cts-tradefed run cts -m CtsNativeHardwareTestCases 100%

Change-Id: I96fa3637c3b03d4177aa9edd2d1ff94845fc7a7b