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From: Nathan Ingersoll <ningerso@ruralcenter.org>
To: linuxppc-dev@lists.linuxppc.org
Subject: Re: Runtime Altivec detection
Date: Fri, 7 Mar 2003 11:35:31 -0600	[thread overview]
Message-ID: <20030307173531.GA6052@ruralcenter.org> (raw)
In-Reply-To: <3E68D5BF.1050906@embeddededge.com>


On Fri, Mar 07, 2003 at 12:24:15PM -0500, Dan Malek wrote:
>
> For some time now the Linux kernel has provided support for emulating
> the 'mfspr rd, PVR' instruction in user space.  Do this once, get the
> PVR and determine the processor type.
>
> You can also just read /proc/cpuinfo and search for the 'cpu :' line.
> It will indicate the processor type and if altivec is supported.
>
> There are probably other ways as well....

Thanks for the info Dan, I'll check into doing it this way. I am still
curious about some of my other questions, such as recovering from a
SIGILL caused by an actual illegal instruction. Anyone willing to chime
in on that?

--
------------------------------------------------------------------------
| Nathan Ingersoll           \\ Computer Systems & Network Coordinator |
| ningerso@ruralcenter.org    \\ http://www.ruralcenter.org            |
| http://ningerso.atmos.org/   \\ Minnesota Center for Rural Health    |
------------------------------------------------------------------------

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2003-03-07 17:35 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-07 16:47 Runtime Altivec detection Nathan Ingersoll
2003-03-07 17:24 ` Dan Malek
2003-03-07 17:35   ` Nathan Ingersoll [this message]
2003-03-07 17:37   ` Anton Blanchard
2003-03-07 17:41   ` Benjamin Herrenschmidt
2003-03-07 17:52     ` Nathan Ingersoll
2003-03-07 18:55     ` Magnus Damm
2003-03-07 18:06       ` Benjamin Herrenschmidt
2003-03-07 18:18       ` Hollis Blanchard
2003-03-07 18:54 ` Magnus Damm
2003-03-07 18:08   ` Nathan Ingersoll
2003-03-07 19:44     ` Magnus Damm
2003-03-07 19:23       ` Nathan Ingersoll
  -- strict thread matches above, loose matches on Subject: below --
2003-03-08  2:02 Bill Fink
2003-03-08  2:11 ` Hollis Blanchard
2003-03-08  8:04   ` Bill Fink
2003-03-08 18:21     ` Nathan Ingersoll
2003-03-09  4:01 Albert Cahalan

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