From: David Mosberger <davidm@napali.hpl.hp.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] psr rt bit
Date: Thu, 31 Oct 2002 18:08:34 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590709805319@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590709805315@msgid-missing>
>>>>> On Thu, 31 Oct 2002 10:20:49 -0600, Mario Smarduch <cms063@email.mot.com> said:
Mario> In head.S ipsr 'rt' bit along with other bits is set before
Mario> rfi as the initialization goes to virtual mode. As the 'rfi'
Mario> implicitly updates the 'psr' will that cause problems if
Mario> 'rsc' is not in lazy mode?
Yes.
Mario> Is it assumed that 'rsc' is in lazy mode by the time _start
Mario> runs?
Yes. SAL Section 3.2.5 guarantees that ar.rsc is set to "enforced
lazy mode, little-endian".
--david
prev parent reply other threads:[~2002-10-31 18:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-31 16:20 [Linux-ia64] psr rt bit Mario Smarduch
2002-10-31 18:08 ` David Mosberger [this message]
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