From: Geoff Levand <geoffrey.levand@am•sony.com>
To: Josh Boyer <jwboyer@linux•vnet.ibm.com>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: [RFC 3/3] zImage: Exception vector support
Date: Mon, 19 Feb 2007 13:39:37 -0800 [thread overview]
Message-ID: <45DA1919.7010706@am.sony.com> (raw)
In-Reply-To: <1171920901.24204.55.camel@zod.rchland.ibm.com>
Josh Boyer wrote:
> On Mon, 2007-02-19 at 07:03 -0800, Geoff Levand wrote:
>> Josh Boyer wrote:
>> > On Sat, Feb 17, 2007 at 05:17:08PM -0800, Geoff Levand wrote:
>> >> Add SMP exception vector support to the powerpc zImage bootwrapper. For
>> >> platforms which have entry points in the vector table. This implements
>> >> SMP entry via the system reset vector.
>> >>
>> >> Signed-off-by: Geoff Levand <geoffrey.levand@am•sony.com>
>> >>
>> >> ---
>> >> arch/powerpc/boot/head.S | 96 +++++++++++++++++++++++++++++++++++++++++
>> >> arch/powerpc/boot/zImage.lds.S | 2
>> >
>> > This one seems pretty PS3 specific, and there's no makefile entry to actually
>> > compile it... Could we name it head_ps3.S or something similar?
>> >
>> > Or am I misunderstanding the code and it's really generic to most SMP
>> > machines (which would make a case to arguably call it head_smp.S).
>>
>> No, its not platform specific nor SMP specific, it should work
>> with all SMP and UP platforms that need this kind of support.
>
> Well, I'm not sure it will work with all UP platforms anyway. The SPR
> you're peeking at to look at the thread number doesn't even exist on 4xx
> for example.
The 4xx wrapper needs a reset vector? If so, what bootloader are you using?
-Geoff
next prev parent reply other threads:[~2007-02-19 21:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-18 1:17 [RFC 3/3] zImage: Exception vector support Geoff Levand
2007-02-18 1:40 ` Josh Boyer
2007-02-19 15:03 ` Geoff Levand
2007-02-19 19:55 ` Benjamin Herrenschmidt
2007-02-19 20:40 ` Geoff Levand
2007-02-19 20:51 ` Benjamin Herrenschmidt
2007-02-19 21:35 ` Josh Boyer
2007-02-19 21:39 ` Geoff Levand [this message]
2007-02-19 21:51 ` Josh Boyer
2007-02-19 0:34 ` Paul Mackerras
2007-02-20 2:25 ` David Gibson
2007-02-20 14:23 ` Geoff Levand
2007-02-20 15:44 ` Geoff Levand
2007-02-20 16:02 ` Segher Boessenkool
2007-02-21 0:16 ` David Gibson
2007-02-23 17:06 ` Benjamin Herrenschmidt
2007-02-23 17:52 ` Segher Boessenkool
2007-02-21 0:16 ` David Gibson
2007-02-23 17:06 ` Benjamin Herrenschmidt
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