63c8cf115a
Register and map userptrs through Shared Virtual Memory(SVM) API at the Kernel level when available. Using this approach, performance will be improve as register/unregister memory will not trigger any system call to KFD driver. Signed-off-by: Alex Sierra <alex.sierra@amd.com> Change-Id: I3726b4b5e1c6a52a83786fbe0af6322eb29ae7c9