From: Ralf Baechle <ralf@linux-mips.org>
To: David Gibson <david@gibson.dropbear.id.au>,
David Daney <ddaney@caviumnetworks.com>,
linux-mips@linux-mips.org, devicetree-discuss@lists.ozlabs.org,
grant.likely@secretlab.ca, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 02/10] MIPS: Octeon: Add device tree source files.
Date: Wed, 23 Feb 2011 15:30:28 +0100 [thread overview]
Message-ID: <20110223143028.GA11832@linux-mips.org> (raw)
In-Reply-To: <20110223000759.GA26300@yookeroo>
On Wed, Feb 23, 2011 at 11:07:59AM +1100, David Gibson wrote:
> Uh.. where are the CPUs?
CPUs are probed the old style way on MIPS. There is a large number of
varieties of CPUs - things like cache size, cache line size, architectural
extension and many small details of behaviour differ. If we'd fully
honor DT CPU configuration information a kernel would need to have fairly
full blown generic CPU support for anything under the sun. But there
already is a scheme that allows platform support code to select permanet
enablement, disablement or runtime probe for every CPU feature under the
sun for significant code savings and performance gain.
Ralf
next prev parent reply other threads:[~2011-02-23 14:41 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-22 20:57 [RFC PATCH 00/10] MIPS: Octeon: Use Device Tree David Daney
2011-02-22 20:57 ` [RFC PATCH 01/10] MIPS: Octeon: Move some Ethernet support files out of staging David Daney
2011-02-23 14:48 ` Grant Likely
2011-02-23 17:36 ` David Daney
2011-02-22 20:57 ` [RFC PATCH 02/10] MIPS: Octeon: Add device tree source files David Daney
2011-02-23 0:07 ` David Gibson
2011-02-23 14:30 ` Ralf Baechle [this message]
2011-02-23 16:59 ` David Daney
2011-02-24 23:19 ` David Gibson
2011-02-25 15:22 ` Grant Likely
2011-02-25 21:46 ` Benjamin Herrenschmidt
2011-02-23 19:06 ` David Daney
2011-02-23 23:49 ` David Gibson
2011-02-24 1:57 ` David Daney
2011-02-24 2:14 ` David Gibson
2011-02-24 2:22 ` David Daney
2011-02-22 20:57 ` [RFC PATCH 03/10] MIPS: Prune some target specific code out of prom.c David Daney
2011-02-22 20:57 ` [RFC PATCH 04/10] MIPS: Octeon: Add a irq_create_of_mapping() implementation David Daney
2011-02-22 20:57 ` [RFC PATCH 05/10] MIPS: Octeon: Rearrance CVMX files in preperation for device tree David Daney
2011-02-22 20:57 ` [RFC PATCH 06/10] MIPS: Octeon: Initialize and fixup " David Daney
2011-02-23 0:16 ` David Gibson
2011-02-23 17:41 ` Grant Likely
2011-02-23 18:40 ` David Daney
2011-02-23 18:51 ` Grant Likely
2011-02-23 19:20 ` David Daney
2011-02-22 20:57 ` [RFC PATCH 07/10] i2c: Convert i2c-octeon.c to use " David Daney
2011-02-23 16:25 ` Grant Likely
2011-02-22 20:57 ` [RFC PATCH 08/10] netdev: mdio-octeon.c: Convert " David Daney
2011-02-22 20:57 ` [RFC PATCH 09/10] netdev: octeon_mgmt: " David Daney
2011-02-23 16:32 ` Grant Likely
2011-02-23 20:33 ` David Miller
2011-02-22 20:57 ` [RFC PATCH 10/10] staging: octeon_ethernet: " David Daney
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