6a98ef78d9
mmap alloc larger address range with align padding page plus guard
pages, then unmap the padding and guard pages at beginning and end
of the range, return aligned address range.
Change-Id: Iaf3c711a079c744289efbafee9b5e63aaf724765
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
[ROCm/ROCR-Runtime commit: b7710a1dda]