From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Subject: Re: [PATCH] MIPS: Tell R4k SC and MC variations apart
Date: Wed, 25 Sep 2013 00:37:42 +0100 (BST) [thread overview]
Message-ID: <alpine.LFD.2.03.1309250019490.17450@linux-mips.org> (raw)
In-Reply-To: <20130924084845.GA21257@linux-mips.org>
On Tue, 24 Sep 2013, Ralf Baechle wrote:
> My reservations may have been about userland reading /proc/cpuinfo and
> looking at the CPU type. Some software may know how to handle the
> PC/SC variants but not the MC versions. But this seems to be a fairly
> weak concern - and I trust you checked gcc's parsing of /proc/cpuinfo.
Actually I wasn't actually aware GCC's got /proc/cpuinfo-based native
arch support for the MIPS target these days, thanks for the hint.
I have now checked the relevant source file and support is pretty weak
there, only half a dozen processors are recognised and no R4k model is
among them. In any case strstr is used to check for matches there so I'd
expect strings like "R4000" or "R4400" without a further suffix to be
chosen.
Maciej
next prev parent reply other threads:[~2013-09-24 23:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-22 22:30 [PATCH] MIPS: Tell R4k SC and MC variations apart Maciej W. Rozycki
2013-09-23 11:37 ` Jonas Gorski
2013-09-23 12:35 ` [PATCH v2] " Maciej W. Rozycki
2013-09-23 12:41 ` Jonas Gorski
2013-09-23 13:01 ` [PATCH v3] " Maciej W. Rozycki
2013-09-24 9:11 ` Ralf Baechle
2013-09-24 8:48 ` [PATCH] " Ralf Baechle
2013-09-24 23:37 ` Maciej W. Rozycki [this message]
2013-09-25 11:02 ` Ralf Baechle
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