K 10
svn:author
V 6
luporl
K 8
svn:date
V 27
2019-02-12T11:29:03.490239Z
K 7
svn:log
V 512
[ppc64] prevent infinite loop on icache sync

At moea64_sync_icache(), when the 'va' argument has page size
alignment, round_page() will return the same value as 'va'.
This would cause 'len' to be 0 and thus an infinite loop.

With this change, 'lim' will always point to the next page boundary.

This issue occurred especially during debugging sessions, when a breakpoint
was placed on an exact page-aligned offset, for instance.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D19149

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