From: Thiemo Seufer <ths@networkno.de>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH] Use a sensible tlbex default for unknown CPUs
Date: Thu, 25 Oct 2007 17:53:13 +0100 [thread overview]
Message-ID: <20071025165313.GE3994@networkno.de> (raw)
In-Reply-To: <20071025161023.GA24715@linux-mips.org>
Ralf Baechle wrote:
> On Thu, Oct 25, 2007 at 04:59:12PM +0100, Thiemo Seufer wrote:
>
> > currently the kernel panics when it boots on an unknown CPU model
> > (with an unknown PRID). Based on the assumption that the majority
> > of newly supported CPU will conform to Release 2 standard, I wrote
> > the appended patch which handles unknown CPUs as R2. It isn't
> > completely bulletproof, as (yet unsupported) non-R1/R2 CPUs may
> > use the AT config bits for different purposes. I still think this
> > is good enough a test.
> >
> > This patch allows me to boot Linux on a "generic" MIPS64R2 Qemu
> > without making up a potentially conflicting PRID. All-zeroes
> > like for other undefined fields does fine.
>
> It's a little more elegant with cpu_has_mips_r2. So how about below patch.
Fine with me.
Thiemo
next prev parent reply other threads:[~2007-10-25 16:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-25 15:59 [PATCH] Use a sensible tlbex default for unknown CPUs Thiemo Seufer
2007-10-25 16:10 ` Ralf Baechle
2007-10-25 16:53 ` Thiemo Seufer [this message]
2007-10-25 17:08 ` Maciej W. Rozycki
2007-10-25 20:56 ` Thiemo Seufer
2007-10-26 9:31 ` Maciej W. Rozycki
2007-10-28 23:39 ` Ralf Baechle
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