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From: "Michał Górny" <mgorny@gentoo.org>
To: gentoo-dev@lists.gentoo.org
Cc: arm <arm@gentoo.org>
Subject: Re: [gentoo-dev] Need ARM/AArch64 test data for cpuid2cpuflags
Date: Wed, 11 Sep 2019 20:15:34 +0200	[thread overview]
Message-ID: <4fe3fcbe0c411a3aa1bfd23336cc42cc8726b0d2.camel@gentoo.org> (raw)
In-Reply-To: <CAEdQ38HCDuFMPN6qacwVaohE3-kVhGLm=sH8Oficw7BfEsEKbQ@mail.gmail.com>

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On Wed, 2019-09-11 at 11:02 -0700, Matt Turner wrote:
> From my original generation SolidRun Cubox:
> 
> $ ./hwcap-dump
> hwcap:000000000004ead6
> hwcap2:0000000000000000
> mattst88@cubox ~/cpuid2cpuflags-7-dev $ uname -a
> Linux cubox 5.2.7 #11 Wed Aug 7 17:50:03 PDT 2019 armv7l ARMv7
> Processor rev 5 (v7l) Marvell Dove GNU/Linux
> 
> cpuid2cflags says
> CPU_FLAGS_ARM: edsp iwmmxt thumb vfp vfpv3 v4 v5 v6 v7 thumb2
> 
> /proc/cpuinfo:
> 
> processor       : 0
> model name      : ARMv7 Processor rev 5 (v7l)
> BogoMIPS        : 333.33
> Features        : half thumb fastmult vfp edsp iwmmxt thumbee vfpv3
> vfpv3d16 tls idivt
> CPU implementer : 0x56
> CPU architecture: 7
> CPU variant     : 0x0
> CPU part        : 0x581
> CPU revision    : 5
> 
> Hardware        : Marvell Dove
> Revision        : 0000
> Serial          : 0000000000000000

Thanks.

> 
> I've got an "iwmmxt2" flag on x11-libs/pixman, but I don't think
> there's a hwcap bit for it. At least not that I see in
> arch/arm/include/uapi/asm/hwcap.h

Maybe there's some other way of inferring it.  For example, 'thumb2'
we're basing on ARM version.

> 
> That's just as well. It's only a very small optimization over iwmmxt.
> 

-- 
Best regards,
Michał Górny


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  reply	other threads:[~2019-09-11 18:15 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-10 20:44 [gentoo-dev] Need ARM/AArch64 test data for cpuid2cpuflags Michał Górny
2019-09-11  5:24 ` Michał Górny
2019-09-11  6:42   ` Nick Howell
2019-09-11  6:52     ` Michał Górny
2019-09-12 11:29   ` Rolf Eike Beer
2019-09-12 13:38     ` Michał Górny
2019-09-13  3:17   ` A Schenck
2019-09-13  5:03     ` Michał Górny
2019-09-11 17:09 ` Georgy Yakovlev
2019-09-11 17:33   ` Michał Górny
2019-09-11 18:02 ` Matt Turner
2019-09-11 18:15   ` Michał Górny [this message]
2019-09-11 20:19 ` James Le Cuirot
2019-09-11 20:37   ` Michał Górny
2019-09-12 13:13 ` James Cloos
2019-09-12 13:47   ` Michał Górny
2019-09-17 20:56 ` Michał Górny
2019-09-18 12:56   ` Alfredo Tupone
2019-09-25 15:22 ` Guilherme Amadio
2019-09-25 16:03   ` Michał Górny
2019-10-01 11:48 ` Roy Bamford
2019-10-02 15:30 ` Piotr Szymaniak

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