tree 66f6f944084fa06a5b780ae2e07a3b2ffd77d225
parent 992fa9958da913aa1a40c78dd566d6498ee7d610
author Nikos Nikoleris <nikos.nikoleris@arm.com> 1474535904 +0100
committer Nikos Nikoleris <nikos.nikoleris@arm.com> 1512474421 +0000

mem: Add support for cache maintenance operation requests

This change adds new packet cmds and request flags for cache
maintenance operations.

1) A cache clean operation writes dirty data in the first memory below
the specified xbar and updates any old copies in the memories above
it.
2) A cache invalidate operation invalidates all copies of the
specified block in the memories above the specified xbar
3) A clean and invalidate operation is a combination of the two
operations above

Change-Id: If45702848bdd568de532cd57cba58499e5e4354c
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Curtis Dunham <curtis.dunham@arm.com>
Reviewed-by: Anouk Van Laer <anouk.vanlaer@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/5047
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>