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Re: mips32 kernel memory mapping

To: Ralf Baechle <>
Subject: Re: mips32 kernel memory mapping
From: Geert Uytterhoeven <>
Date: Fri, 23 Jul 2004 22:34:35 +0200 (MEST)
Cc: "Maciej W. Rozycki" <>, Srinivas Kommu <>, Linux/MIPS Development <>
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
On Fri, 23 Jul 2004, Ralf Baechle wrote:
> There are still improvments to be made for BCM1250 support.  Somebody
> thought scattering the first 1GB of memory through the lowest 4GB of
> physical address space like a three year old his toys over the floor
> was a good thing ...  The resulting holes in the memory map are wasting
> significant amounts of memory for unused memory; the worst case number
> that is reached for 64-bit kernel on a system with > 1GB of RAM is 96MB!

Perhaps you want to start using virtually mapped zones, like m68k?



Geert Uytterhoeven -- There's lots of Linux beyond ia32 --

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                                            -- Linus Torvalds

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