From: Milton Miller <miltonm@bga•com>
To: mohan@in•ibm.com
Cc: ppcdev <linuxppc-dev@ozlabs•org>,
Paul Mackerras <paulus@samba•org>,
kexec@lists•infradead.org
Subject: Re: [PATCH] Fix interrupt distribution in ppc970
Date: Fri, 15 Jun 2007 11:35:49 -0500 [thread overview]
Message-ID: <984f2f169b3e60daa032eb31147241b4@bga.com> (raw)
In-Reply-To: <20070612145157.GA7562@in.ibm.com>
On Jun 12, 2007, at 9:51 AM, Mohan Kumar M wrote:
>
> Attached patch uses cpumask_scnprintf function.
> In some of the PPC970 based systems, interrupt would be distributed to
> offline cpus also even when booted with "maxcpus=1". So check whether
> cpu online map and cpu present map are equal or not. If they are equal
> default_distrib_server is used as interrupt server otherwise boot cpu
> (default_server) used as interrupt server.
>
> In addition to this, if an interrupt is assigned to a specific cpu (ie
> smp affinity) and if that cpu is not online, the earlier code used to
> return the default_distrib_server as interrupt server. This patch
> introduces an additional paramter to the get_irq function ie
> strict_check, based on this parameter, if the cpu is not online either
> default_distrib_server or -1 is returned.
>
> Cc: Milton Miller <miltonm@bga•com>,
> Michael Ellerman <michael@ellerman•id.au>
> Signed-off-by: Mohan Kumar M <mohan@in•ibm.com>
>
Acked-by: Milton Miller <miltonm@bga•com>
next prev parent reply other threads:[~2007-06-15 16:36 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-08 4:55 [PATCH] Fix interrupt distribution in ppc970 Mohan Kumar M
2006-12-18 4:37 ` Paul Mackerras
2006-12-18 5:14 ` Mohan Kumar M
2006-12-18 10:57 ` Mohan Kumar M
2007-01-02 11:42 ` [Fastboot] " Mohan Kumar M
2007-01-02 15:07 ` Doug Maxey
2007-03-06 13:57 ` Mohan Kumar M
2007-03-06 14:16 ` Michael Ellerman
2007-03-06 16:55 ` Mohan Kumar M
2007-03-06 17:37 ` Michael Ellerman
2007-03-07 4:53 ` Mohan Kumar M
2007-03-07 10:52 ` Michael Ellerman
2007-04-09 8:57 ` Mohan Kumar M
2007-04-10 7:06 ` Michael Ellerman
2007-04-10 12:54 ` Mohan Kumar M
2007-04-10 16:59 ` Milton Miller
2007-04-11 1:16 ` Michael Ellerman
2007-04-19 11:52 ` Mohan Kumar M
2007-04-20 5:45 ` Milton Miller
2007-04-26 9:24 ` Mohan Kumar M
2007-04-26 14:42 ` Milton Miller
2007-05-03 14:47 ` Mohan Kumar M
2007-05-06 6:52 ` Milton Miller
2007-06-04 10:54 ` Mohan Kumar M
2007-06-06 9:43 ` Milton Miller
2007-06-06 11:31 ` Mohan Kumar M
2007-06-11 1:58 ` Milton Miller
2007-06-11 18:07 ` Mohan Kumar M
2007-06-12 14:51 ` Mohan Kumar M
2007-06-15 16:35 ` Milton Miller [this message]
2007-03-07 6:06 ` [Fastboot] " Vivek Goyal
2007-03-07 10:46 ` Michael Ellerman
2007-03-06 22:05 ` Nathan Lynch
2007-03-07 5:01 ` Mohan Kumar M
2007-03-07 8:52 ` Benjamin Herrenschmidt
2007-03-07 9:10 ` Mohan Kumar M
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