From: Jack Steiner <steiner@sgi.com>
Date: Fri, 5 Aug 2011 14:09:00 +0000 (-0500)
Subject: x86, UV: Remove UV delay in starting slave cpus
X-Git-Tag: v3.1-rc4~52^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=05e33fc20ea5e493a2a1e7f1d04f43cdf89f83ed;p=pandora-kernel.git

x86, UV: Remove UV delay in starting slave cpus

Delete the 10 msec delay between the INIT and SIPI when starting
slave cpus. I can find no requirement for this delay. BIOS also
has similar code sequences without the delay.

Removing the delay reduces boot time by 40 sec. Every bit helps.

Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/20110805140900.GA6774@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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