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

["Xu, Anthony" <anthony.xu@xxxxxxxxx>]

>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.
 
Thanks,
Anthony

>Thanks,
>Tristan.

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