armv6 pmap patch

[Alan Cox]

On 09/10/2012 04:18, Andrew Turner wrote:
> On Sat, 08 Sep 2012 19:01:26 -0500
> Alan Cox<alc at rice.edu>  wrote:
>
>> Can someone here please test this patch to the new armv6 pmap?  It
>> eliminates the use of the page queues lock and updates some
>> comments. Similar changes were recently made to the original arm pmap.
>>
>> Thanks,
>> Alan
>>
> I have booted FreeBSD with the patch on a Pandaboard and it appears to
> work. Are there any tests you would like me to run?
>

Nothing in particular, since almost anything that you do on the machine 
will exercise the changed code.

There appears to be a lot of unnecessary dropping and reacquiring of 
locks around UMA calls in both pmap.c and pmap-v6.c.  I will try to 
generate a patch to eliminate this later in the week.

Alan