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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