Messages in this thread | | | Date | Tue, 4 Jul 2006 07:55:47 +0300 | From | "Michael S. Tsirkin" <> | Subject | Re: [PATCH 38 of 39] IB/ipath - More changes to support InfiniPath on PowerPC 970 systems |
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Quoting r. Anton Blanchard <anton@samba.org>: > Subject: Re: [PATCH 38 of 39] IB/ipath - More changes to support InfiniPath on PowerPC 970 systems > > > Hi, > > > Please fix the generic code if it doesn't provide the facility > > you need at the moment. Don't shoe horn it into your driver > > just to make up for that. > > Ive had 3 drivers asking for write combining recently so I agree this is > a good idea. How about ioremap_wc as suggested by Willy: > > http://marc.theaimsgroup.com/?l=linux-kernel&m=114374741828040&w=2
Hmm ... I think ioremap_wc isn't sufficient by itself to make drivers using write-combined memory, portable. Here's another thread on a related subject:
http://lkml.org/lkml/2006/2/24/347
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