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From: Dan Malek <dan@embeddededge.com>
To: Dale Farnsworth <dale@farnsworth.org>
Cc: linuxppc-dev@lists.linuxppc.org
Subject: Re: Patch boot/common/relocate.S to start kernel at 0x000c
Date: Tue, 04 Mar 2003 18:21:30 -0500	[thread overview]
Message-ID: <3E6534FA.9070503@embeddededge.com> (raw)
In-Reply-To: 20030304230849.GB4683@rover.farnsworth.org


Dale Farnsworth wrote:

> -	nop	/* used by __secondary_hold on prep (mtx) and chrp smp */
> -	nop	/* used by __secondary_hold on prep (mtx) and chrp smp */
> +	/*
> +	 * The first two words are used by __secondary_hold on SMP systems.
> +	 * The second word may be overwritten before the first cpu runs
> +	 * here, so we branch around it.
> +	 */
> +	b	__start
> +	nop
>  	nop

I thought of this, but the comment on the first nop bothered me.
Was it just a cut/paste without updating the comment, or could the nop
and location zero be used by MP systems just like the one at location 0x04?

Thanks.


	-- Dan


** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2003-03-04 23:21 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-04 19:16 Patch boot/common/relocate.S to start kernel at 0x000c Dale Farnsworth
2003-03-04 19:24 ` Dan Malek
2003-03-04 20:13   ` Dale Farnsworth
2003-03-04 20:21     ` Dan Malek
2003-03-04 23:08       ` Dale Farnsworth
2003-03-04 23:21         ` Dan Malek [this message]
2003-03-04 23:35           ` Dale Farnsworth
2003-03-04 23:42           ` Tom Rini
2003-03-05  0:07             ` Dale Farnsworth
2003-03-05  0:47               ` Paul Mackerras
2003-03-05  1:01                 ` Wolfgang Denk
2003-03-05  1:03                 ` Wolfgang Denk
     [not found]                   ` <20030305022134.GR24171@kalmia.hozed.org>
2003-03-05  4:40                     ` Dale Farnsworth
2003-03-05 17:07                     ` Tom Rini
     [not found]                   ` <15973.24544.124365.553602@argo.ozlabs.ibm.com>
2003-03-05  4:28                     ` Dale Farnsworth
2003-03-05  9:54                       ` Benjamin Herrenschmidt
2003-03-05 17:10                     ` Tom Rini
2003-03-11 18:45                     ` Dale Farnsworth
2003-03-05 17:24                   ` Dan Malek
2003-03-13 22:38       ` Dale Farnsworth
2003-03-14 11:43         ` Gabriel Paubert
2003-03-14 17:52           ` Dale Farnsworth

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