From: Russell King <rmk+lkml@arm.linux.org.uk>
To: David Woodhouse <dwmw2@infradead.org>
Cc: Andrew Morton <akpm@osdl.org>,
trini@kernel.crashing.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 1/22] Add __early_param for all arches
Date: Fri, 26 Mar 2004 21:03:56 +0000 [thread overview]
Message-ID: <20040326210355.D17638@flint.arm.linux.org.uk> (raw)
In-Reply-To: <1080210253.29835.37.camel@hades.cambridge.redhat.com>; from dwmw2@infradead.org on Fri, Mar 26, 2004 at 11:29:35AM +0000
On Fri, Mar 26, 2004 at 11:29:35AM +0000, David Woodhouse wrote:
> Drivers may require allocation (bootmem not slab). We want to run before
> that's feasible -- before 'mem=', by definition :)
It definitely wants to be after mem= since mem= modifies the memory
layout before bootmem is initialised (and its required to be parsed
before bootmem is initialised, so bootmem knows where the memory is.)
So we require, in order:
- mem= to be parsed
- bootmem to be initialised
- drivers which want to allocate from bootmem to then be
initialised
- setup rest of the kernel
- final command line parsing
which gives us three stages of command line parsing.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/
2.6 Serial core
next prev parent reply other threads:[~2004-03-26 21:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-24 23:57 [patch 1/22] Add __early_param for all arches trini
2004-03-25 3:55 ` Andrew Morton
2004-03-26 11:29 ` David Woodhouse
2004-03-26 21:03 ` Russell King [this message]
2004-03-26 21:15 ` David Woodhouse
2004-03-31 4:23 ` Rusty Russell
2004-03-31 16:13 ` Tom Rini
2004-04-01 1:51 ` Rusty Russell
2004-04-01 2:24 ` Tom Rini
2004-04-01 2:56 ` Rusty Russell
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