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From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: Rakib Mullick <rakib.mullick@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	x86@kernel.org, Ingo Molnar <mingo@elte.hu>
Subject: Re: [Question] x86,APIC: In apicdef.h dfr,svr,...... shouldn't be const?
Date: Wed, 2 Sep 2009 03:17:08 +0100 (BST)	[thread overview]
Message-ID: <alpine.LFD.2.00.0909020308510.27310@eddie.linux-mips.org> (raw)
In-Reply-To: <b9df5fa10908312248x6a8946f5jfbe972f3358baad3@mail.gmail.com>

On Tue, 1 Sep 2009, Rakib Mullick wrote:

> Hello guys, Intel System programmers guide says - dfr, svr, esr - this
> registers should be readonly. So shouldn't they use const? Or is it
> anything else?

 All the three have meaningful semantics on writes at least on some 
versions of the APIC (they either have writable fields or trigger side 
effects on writes).  It looks like your documentation is wrong (not 
unheard of with Intel).

  Maciej

  parent reply	other threads:[~2009-09-02  2:29 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-01  5:48 Rakib Mullick
2009-09-01  8:43 ` Cyrill Gorcunov
2009-09-01 19:41   ` Cyrill Gorcunov
2009-09-02  2:17 ` Maciej W. Rozycki [this message]
2009-09-03 22:56   ` Rakib Mullick
2009-09-03 23:21     ` Maciej W. Rozycki

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