| To: | vivien.chappelier@enst-bretagne.fr (Vivien Chappelier) |
|---|---|
| Subject: | Re: aic7xxx (O2 scsi) DMA coherency |
| From: | Alan Cox <alan@lxorguk.ukuu.org.uk> |
| Date: | Thu, 3 Jan 2002 21:57:15 +0000 (GMT) |
| Cc: | ralf@oss.sgi.com (Ralf Baechle), linux-mips@oss.sgi.com |
| In-reply-to: | <Pine.LNX.4.21.0201032233400.8906-200000@melkor> from "Vivien Chappelier" at Jan 03, 2002 10:34:52 PM |
| Sender: | owner-linux-mips@oss.sgi.com |
> This tells the aic7xxx to use DMA safe memory for I/O. That seems totally inappropriate. The unchecked dma option is for ancient ISA DMA controllers that didnt do the 16Mb check. If you find you need it debug your pci remapper |
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