K 10
svn:author
V 8
jhibbits
K 8
svn:date
V 27
2019-08-15T03:42:15.826676Z
K 7
svn:log
V 403
powerpc/pmap: Enable UMA_MD_SMALL_ALLOC for 64-bit booke

The only thing blocking UMA_MD_SMALL_ALLOC from working on 64-bit booke
powerpc was a missing check in pmap_kextract().  Adding DMAP handling into
pmap_kextract(), we can now use UMA_MD_SMALL_ALLOC.  This should improve
performance and stability a bit, since DMAP is always mapped in TLB1, so
this relieves pressure on TLB0.

MFC after:	3 weeks

END