From: Ralf Baechle <ralf@linux-mips.org>
To: exister99@velocitus.net
Cc: linux-mips@linux-mips.org
Subject: Re: mips 32 bit HIGHMEM support
Date: Fri, 10 Oct 2003 16:59:49 +0200 [thread overview]
Message-ID: <20031010145948.GB10373@linux-mips.org> (raw)
In-Reply-To: <20031009140319.GA17647@linux-mips.org>
On Thu, Oct 09, 2003 at 04:03:20PM +0200, Ralf Baechle wrote:
> It's got a limitation - it only works on physically indexed D-caches or
> more exactly processors that don't suffer from cache aliases. On
> processors that have such aliases the necessary flushes are rather bad
> for performance so this currently simply isn't suported.
Small update - I changed the memory managment code to ignore highmem
on cache configuration that are not supported by the highmem code.
Ralf
next prev parent reply other threads:[~2003-10-10 15:00 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-08 22:00 mips 32 bit HIGHMEM support exister99
2003-10-08 22:00 ` exister99
2003-10-09 14:03 ` Ralf Baechle
2003-10-09 22:11 ` bug in kernel_entry? Steve Scott
2003-10-09 22:11 ` Steve Scott
2003-10-10 13:23 ` Ralf Baechle
2003-10-10 14:59 ` Ralf Baechle [this message]
2003-10-13 23:15 ` 64 bit kernel in the name of HIGHMEM exister99
2003-10-13 23:15 ` exister99
-- strict thread matches above, loose matches on Subject: below --
2003-10-10 17:44 mips 32 bit HIGHMEM support Krishna Kondaka
2003-10-10 17:44 ` Krishna Kondaka
2003-10-10 17:53 ` Ralf Baechle
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