bcm64: enter page tables in mmutop *AFTER* switching asid in mmuswitch()

there was a small window between modifying mmutop and switching the
asid where the core could bring in the new entries under the old asid
into the tlb due to speculation / prefetching.

this change moves the entering of the page tables into mmutop after
setttbr() to prevent this scenario.

due to us switching to the resereved asid 0 on procsave()->putasid(),
the only asid that could have potentially been poisoned would be asid 0
which does not have any user mappings. so this did not show any noticable
effect.

0 files changed, 0 insertions, 0 deletions