From: Paul Mackerras <paulus@samba.org>
To: Roland Dreier <rdreier@cisco.com>
Cc: Joachim Fenkes <fenkes@de.ibm.com>, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] Allow drivers to map individual 4k pages to userspace
Date: Wed, 4 Apr 2007 15:14:40 +1000 [thread overview]
Message-ID: <17939.13376.772183.912217@cargo.ozlabs.ibm.com> (raw)
In-Reply-To: <adamz1odbpr.fsf@cisco.com>
Roland Dreier writes:
> If I'm going off on something irrelevant, just tell me. But is there
> a chance that you would want to build a kernel that can boot on both a
> platform that has eHCA, and also on some other platform that cannot
> support remap_4k_pfn?
In a word, no. :)
Only 64-bit machines have eHCA. A 64-bit powerpc kernel only supports
64-bit machines, and all 64-bit powerpc machines can support
remap_4k_pfn. I don't see any difficulty arising with future 64-bit
embedded processors either.
Paul.
next prev parent reply other threads:[~2007-04-04 5:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-03 11:24 [PATCH] Allow drivers to map individual 4k pages to userspace Paul Mackerras
2007-04-04 2:34 ` Roland Dreier
2007-04-04 3:23 ` Benjamin Herrenschmidt
2007-04-04 4:07 ` Roland Dreier
2007-04-04 4:43 ` Benjamin Herrenschmidt
2007-04-04 5:14 ` Paul Mackerras [this message]
2007-04-04 4:41 ` Paul Mackerras
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