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RE: [Xen-ia64-devel] PATCH [resend]: more case handled in mmio.c

To: "Xu, Anthony" <anthony.xu@xxxxxxxxx>, "Tristan Gingold" <Tristan.Gingold@xxxxxxxx>, <xen-ia64-devel@xxxxxxxxxxxxxxxxxxx>, "Alex Williamson" <alex.williamson@xxxxxx>
Subject: RE: [Xen-ia64-devel] PATCH [resend]: more case handled in mmio.c
From: "Xu, Anthony" <anthony.xu@xxxxxxxxx>
Date: Fri, 21 Apr 2006 16:01:39 +0800
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Thread-topic: [Xen-ia64-devel] PATCH [resend]: more case handled in mmio.c
>From: xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx
>[mailto:xen-ia64-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Xu, Anthony
>Sent: 2006?4?21? 15:55
>To: Tristan Gingold; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx; Alex Williamson
>Subject: RE: [Xen-ia64-devel] PATCH [resend]: more case handled in mmio.c
>
>>From: Tristan Gingold [mailto:Tristan.Gingold@xxxxxxxx]
>>Sent: 2006?4?21? 15:53
>>To: Xu, Anthony; xen-ia64-devel@xxxxxxxxxxxxxxxxxxx; Alex Williamson
>>Subject: Re: [Xen-ia64-devel] PATCH [resend]: more case handled in mmio.c
>>
>>Le Vendredi 21 Avril 2006 09:45, Xu, Anthony a écrit :
>>> One more comment.
>>>         /* Write high word.
>>>                 FIXME: this is a kludge!  */
>>>              v.u.bits[1] &= 0x3ffff;
>>> This seems not be necessary.
>>> v is got by stf.spill,
>>> stf.spill makes sure the high 47 bits of v.u.bits[1] is 0.
>>Yes, this is correct.
>>In fact the comment is not correctly placed: the kludge is to do two
>>mmio_access.
>>
>The largest size of mmio is 8 byte, if not using pointer in ioreq structure.
>And I don't know whether pointer works.
>Is that possible to change "uint64_t data" to "long long data"?
>Long long type is 16 byte, which is largest size of mmio in ia64.
>
Sorry, long long type is still 8 byte.
Do you know which type is 16 byte in ia64?

Thanks,
Anthony
>
>>Thanks,
>>Tristan.
>
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