From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <kumar.gala@freescale.com>
Cc: linuxppc-dev@ozlabs.org, John Reiser <jreiser@BitWagon.com>
Subject: Re: 2GB address space limit on 32-bit PowerPC Macintosh
Date: Mon, 16 May 2005 15:52:00 +1000 [thread overview]
Message-ID: <1116222720.5095.86.camel@gaston> (raw)
In-Reply-To: <5833cd030098e5fc4600f691cab4f36c@freescale.com>
> >
> > We need to fix that too :) Though I suppose we can just switch that to
> > page tables, I don't really see the point of using a BAT here...
>
> Are the embedded board ports broken because of similar
> io_block_mapping() calls or for some other reason?
Mostly because of the above, though some embedded ports may do even more
horrible things for what i know :) The problem with io_block_mapping()
is that 1) it lets you put those BARs or mappings where you want, and 2)
you end up with plenty of code hard-coding this virtual address here or
there that need to be fixed.
> I'm in agreement that we should bump TASK_SIZE to 3GB and fix things,
> how about after 2.6.12 is out?
Agreed. I'll fix PReP/CHRP/pmac & defconfig. Every embedded board
vendor/maintainer will be responsible for fixing his/her boards support.
Ben.
next prev parent reply other threads:[~2005-05-16 5:54 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-15 22:36 2GB address space limit on 32-bit PowerPC Macintosh John Reiser
2005-05-15 23:01 ` Benjamin Herrenschmidt
2005-05-15 23:29 ` Paul Mackerras
2005-05-15 23:34 ` Benjamin Herrenschmidt
2005-05-16 5:51 ` Kumar Gala
2005-05-16 5:52 ` Benjamin Herrenschmidt [this message]
2005-05-16 6:21 ` Kumar Gala
2005-05-16 6:22 ` Benjamin Herrenschmidt
2005-05-16 15:04 ` Dan Malek
2005-05-16 15:05 ` Benjamin Herrenschmidt
2005-05-16 15:52 ` Dan Malek
2005-05-16 16:42 ` Benjamin Herrenschmidt
2005-05-16 17:11 ` Dan Malek
2005-05-17 0:54 ` Benjamin Herrenschmidt
2005-05-16 18:00 ` Mark A. Greer
2005-05-16 18:06 ` Mark A. Greer
2005-05-16 20:31 ` Dan Malek
2005-05-16 20:43 ` Mark A. Greer
2005-05-16 21:02 ` Dan Malek
2005-05-17 3:14 ` Benjamin Herrenschmidt
2005-05-17 0:56 ` Benjamin Herrenschmidt
2005-05-16 16:11 ` Wolfgang Denk
2005-05-16 16:22 ` Eugene Surovegin
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