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From: elder@linaro.org (Alex Elder)
To: linux-arm-kernel@lists.infradead.org
Subject: mach-spear SMP questions
Date: Thu, 27 Mar 2014 08:33:38 -0500	[thread overview]
Message-ID: <533428B2.2050906@linaro.org> (raw)

I'm doing some code cleanup and have a question about
something related to SMP in mach-spear.  Can anyone
help me with these questions?

My question has to do with how secondary cores start for
SMP.  Most machines need to send a wakeup event from the
boot core to each secondary core as it is told to start.
But mach-spear does not do this.  I'd like to know if this
is an oversight, or confirm that this is simply not necessary
for this machine.

Also, while most machines touch a memory location and then
do a targeted cache involving only that location, mach-spear
does a full flush.  Is the full flush really required for
some reason?

Thanks.

					-Alex

             reply	other threads:[~2014-03-27 13:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-27 13:33 Alex Elder [this message]
2014-03-27 14:39 ` mach-spear SMP questions Russell King - ARM Linux
2014-03-27 16:56   ` Alex Elder
2014-03-27 17:19     ` Russell King - ARM Linux
2014-03-27 19:08       ` Alex Elder
2014-03-27 14:40 ` Viresh Kumar

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