Changeset 11766:3a8eb6336012

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mem: Allow non-invalidating uncacheable snoops
This is a follow up to changeset 11285. Uncacheable snoops do

not invalidate so this panics if we are responding to an uncacheable

write snoop.
This panic happens under ARM Linux 4.3. It affects myself and at

least one other user:
https://www.mail-archive.com/gem5-users@gem5.org/msg13105.html

Ran {ARM,X86} debug/quick/se regressions but I don't have the spec binaries. Used with ARM full system simulation to complete my course project.