From: Olof Johansson <olof@lixom•net>
To: Tony Breeds <tony@bakeyournoodle•com>
Cc: LinuxPPC-dev <linuxppc-dev@ozlabs•org>,
Jan-Bernd Themann <themann@de•ibm.com>,
Paul Mackerras <paulus@samba•org>,
Stephen Rothwell <sfr@canb•auug.org.au>
Subject: Re: [PATCH v2] Force 4K pages for IO addresses.
Date: Mon, 17 Mar 2008 19:34:34 -0500 [thread overview]
Message-ID: <20080318003434.GA671@lixom.net> (raw)
In-Reply-To: <20080317035419.GH6887@bakeyournoodle.com>
On Mon, Mar 17, 2008 at 02:54:19PM +1100, Tony Breeds wrote:
> Currently HEA requires 4K pages for IO resources. Just set the pages size to
> IO to 4K.
Well, that's too bad. Why penalize all platforms for it?
I.e.: Nack, we use 64K iopages on pa6t and it works well. No need to
waste tlb and erat space.
-Olof
next prev parent reply other threads:[~2008-03-18 0:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-17 3:47 [PATCH] Force 4K pages for IO addresses Tony Breeds
2008-03-17 3:54 ` [PATCH v2] " Tony Breeds
2008-03-18 0:34 ` Olof Johansson [this message]
2008-03-18 2:43 ` Benjamin Herrenschmidt
2008-03-18 14:45 ` Nathan Lynch
2008-03-18 20:31 ` Benjamin Herrenschmidt
2008-03-18 21:52 ` Tony Breeds
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