K 10
svn:author
V 10
nwhitehorn
K 8
svn:date
V 27
2017-11-25T21:59:59.966196Z
K 7
svn:log
V 269
Whether you can use mttb() or not is more complicated than whether PSL_HV
is set and the right thing to do may be platform-dependent (it requires
firmware on PowerNV, for instance). Make it a new platform method called
platform_smp_timebase_sync().

MFC after:	3 weeks

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