tree f2b043d52189f9c89106628f69faf5fc3c2f6027
parent bc75d799f9531fe112f7d78a5547ad549293fb7e
author Omer Shpigelman <oshpigelman@habana.ai> 1573755837 +0000
committer Oded Gabbay <oded.gabbay@gmail.com> 1574328946 +0200

habanalabs: optimize MMU unmap

Reduce context close time by skipping hash table lookup if possible in
order to avoid hard reset with open contexts.
Reset with open contexts can potentially lead to a kernel crash as the
generic pool of the MMU hops is destroyed while it is not empty because
some unmap operations are not done.
This commit affect mainly when running on simulator.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>