From: Christoph Hellwig <hch@lst.de>
Date: Fri, 29 Jun 2007 00:57:51 +0000 (+1000)
Subject: [POWERPC] spusched: Switch from workqueues to kthread + timer tick
X-Git-Tag: v2.6.23-rc1~767^2^2~74
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=379018022071489a7dffee74db2a267465dab561;p=pandora-kernel.git

[POWERPC] spusched: Switch from workqueues to kthread + timer tick

Get rid of the scheduler workqueues that complicated things a lot to
a dedicated spu scheduler thread that gets woken by a traditional
scheduler tick.  By default this scheduler tick runs a HZ * 10, aka
one spu scheduler tick for every 10 cpu ticks.

Currently the tick is not disabled when we have less context than
available spus, but I will implement this later.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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