* SWDEV-550626 - Refactor atomics header and tests
1. Introduce __HIP_ATOMIC_BACKWARD_COMPAT.
By default we define __HIP_ATOMIC_BACKWARD_COMPAT=1 to
let hip atomic functions maintain old assumptions. if
users want to adopt the new behavior, that is , by default
assume no-fine-grained no-remote-memory, then they can
define __HIP_ATOMIC_BACKWARD_COMPAT=0 and get the new
behaviour.
2. Use __HIP_ATOMIC_BACKWARD_COMPAT_MEMORY to replace
original __HIP_FINE_GRAINED_MEMORY in atomic header.
And apply __HIP_FINE_GRAINED_MEMORY onto all
atomicXXX_system() functions to prevent failure on memory
allocated by hipHostMalloc().
3. Replace HIP_TEST_FINE_GRAINED_MEMORY with
HIP_TEST_ATOMIC_BACKWARD_COMPAT_MEMORY in hip-tests.
4. Fix negative test errors.
Fix managed memory test error on memory order.
some other minor changes.
As a result all originally disabled tests are enabled.
5. Add more atomics tests in some cases.
6. Reduce test time in each case.
Reduce iteration number to 1 for tests that cost too much time.
8. Put common codes into hip_test_common.hh
MachineTom
Manocha, Rahul
GunaShekar, Ajay
Rakesh Roy
Mirza Halilčević
Maneesh Gupta
Mirza Halilcevic