Jason A. Harmening 9d45af5c09 mips: move support for temporary mappings above KSEG0 to per-CPU data
This is derived from similar work done in r310481 for i386 and r312610 for
armv6/armv7. Additionally, use a critical section to keep the thread
pinned for per-CPU operations instead of completely disabling local interrupts.

No objections from:	adrian, jmallett, imp
Differential Revision: 	https://reviews.freebsd.org/D18593
2019-09-17 03:39:31 +00:00
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