From: tony@bakeyournoodle.com (Tony Breeds)
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
Jan-Bernd Themann <themann@de.ibm.com>,
LinuxPPC-dev <linuxppc-dev@ozlabs.org>,
Nathan Lynch <ntl@pobox.com>, Olof Johansson <olof@lixom.net>,
Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH v2] Force 4K pages for IO addresses.
Date: Wed, 19 Mar 2008 08:52:54 +1100 [thread overview]
Message-ID: <20080318215254.GM6887@bakeyournoodle.com> (raw)
In-Reply-To: <1205872285.26869.251.camel@pasglop>
On Wed, Mar 19, 2008 at 07:31:25AM +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2008-03-18 at 09:45 -0500, Nathan Lynch wrote:
> > The ibm,drc-names property of the root node should have "HEA" strings
> > in it on systems where EHEA can potentially be present.
>
> Ah good, I didn't know. That will force us to stick an ugly wart
> somewhere to test it though, maybe we can just force mmu_ci_restrictions
> to 1 ? Paul what do you think ?
That's not enough, mmu_io_psize also needs to be 4K. I'll poke at doing
something platform specific today.
Yours Tony
linux.conf.au http://www.marchsouth.org/
Jan 19 - 24 2009 The Australian Linux Technical Conference!
prev parent reply other threads:[~2008-03-18 21:52 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
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 [this message]
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