From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org, "Régis Odeyé" <regis.odeye@kontron.com>
Subject: Re: Extended Addressing Mode
Date: Thu, 23 Oct 2008 09:11:46 +1100 [thread overview]
Message-ID: <1224713506.7654.353.camel@pasglop> (raw)
In-Reply-To: <88C8EDEB-C9A5-4876-AF7D-55CBABBE111D@kernel.crashing.org>
On Wed, 2008-10-22 at 08:08 -0500, Kumar Gala wrote:
> > We are developing a board based on Freescale 8641D which can get
> 4GB
> > of ram. So I need 4GB+IOs (~1GB) of physical addressing space.
> > My plan is to put a part of this ram above of 4GB to keep accesses
> > to the IOs below the 4GB limit. It means non-contiguous ram
> > addressing and XAEN features to be working.
Why would you put the IOs below the 4G point ? It's actually easier
to have the IOs up above, like a lot of 4xx do.
Cheers,
Ben.
next prev parent reply other threads:[~2008-10-22 22:12 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-22 8:59 Extended Addressing Mode Régis Odeyé
2008-10-22 12:31 ` Kumar Gala
2008-10-22 12:59 ` Régis Odeyé
2008-10-22 13:08 ` Kumar Gala
2008-10-22 13:40 ` Régis Odeyé
2008-10-22 13:42 ` Matt Sealey
2008-10-22 14:06 ` Kumar Gala
2008-10-22 14:19 ` Matt Sealey
2008-10-22 14:58 ` Kumar Gala
2008-10-22 18:11 ` Matt Sealey
2008-10-22 19:59 ` Becky Bruce
2008-10-22 22:18 ` Matt Sealey
2008-10-22 14:22 ` Matt Sealey
2008-10-22 14:59 ` Kumar Gala
2008-10-22 18:25 ` Matt Sealey
2008-10-22 14:18 ` Régis Odeyé
2008-10-22 22:11 ` Benjamin Herrenschmidt [this message]
2008-10-22 22:21 ` Matt Sealey
2008-10-22 22:48 ` Benjamin Herrenschmidt
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1224713506.7654.353.camel@pasglop \
--to=benh@kernel.crashing.org \
--cc=galak@kernel.crashing.org \
--cc=linuxppc-dev@ozlabs.org \
--cc=regis.odeye@kontron.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.