From: Arnd Bergmann <arnd@arndb•de>
To: linuxppc-dev@ozlabs•org
Cc: jbahr <jbahr@set-software-services•com>
Subject: Re: Discontiguous Memory
Date: Sat, 16 Sep 2006 01:24:57 +0200 [thread overview]
Message-ID: <200609160124.57280.arnd@arndb.de> (raw)
In-Reply-To: <6332580.post@talk.nabble.com>
Am Friday 15 September 2006 22:22 schrieb jbahr:
> Are this really a problem or is there kernel provision for the PPC for
> discontiguous real memory DRAM space?
>
> Any comments would be VERY appreciated.
You probably want to enable the CONFIG_ARCH_SPARSEMEM_ENABLE
option, which is currently dependant on CONFIG_PPC64.
Look in the early_init_dt_scan_memory function (arch/powerpc/kernel/prom.c)
for how to layout the "memory" nodes in your device tree.
Arnd <><
next prev parent reply other threads:[~2006-09-15 23:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-15 20:22 Discontiguous Memory jbahr
2006-09-15 23:24 ` Arnd Bergmann [this message]
2006-09-15 23:31 ` Jeffery Bahr
2006-09-16 0:56 ` Benjamin Herrenschmidt
2006-09-16 9:51 ` Arnd Bergmann
2006-09-16 22:50 ` Benjamin Herrenschmidt
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