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Date:      Sat, 30 Sep 2000 19:13:03 -0700 (PDT)
From:      John Baldwin <jhb@FreeBSD.org>
To:        Mitsuru IWASAKI <iwasaki@jp.freebsd.org>
Cc:        cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org, dfr@FreeBSD.org, dfr@nlsystems.com
Subject:   Re: cvs commit: src/sys/ia64/conf GENERIC GENERIC.hints src/sys/
Message-ID:  <XFMail.000930191303.jhb@FreeBSD.org>
In-Reply-To: <20001001072429H.iwasaki@jp.FreeBSD.org>

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On 30-Sep-00 Mitsuru IWASAKI wrote:
>> > Do you intend to implement {read|write}_eflags() for ia64 port?
>> 
>> It depends on exactly what you want these functions to do. The ia64
>> processor doesn't exactly have an 'eflags' register but it is possible to
>> do some similar things to the x86. I have implemented
>> {save,disable,restore}_intr() for ia64 which is most of what the rest of
>> the kernel needs.
> 
> OK, thanks.  I think {save,disable,restore}_intr() would be enough.
> Maybe we need ia64 version of wbinvd() in future (maybe different name).

You can probably use memory barriers (which are MI via busspace, albeit
a pain to arbitrarily use in code it seems from what little docco I've
been able to find so far).

--

John Baldiwn <jhb@FreeBSD.org>



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