Messages in this thread | | | Date | Thu, 24 Apr 2008 07:18:35 -0700 (PDT) | Subject | Re: [PATCH RFC] x86: Fix 64-bit DMA masks on VIA | From | David Miller <> |
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From: Michael Buesch <mb@bu3sch.de> Date: Thu, 24 Apr 2008 16:06:00 +0200
> Why do we need to workaround this in _every_ driver? (Note that _every_ > driver supporting a 64bit mask is affected). Why not fix it in the DMA layer?
Because the driver has to make a conscious choice of what DMA mask it wants to use. Datastructures can change based upon whether 32-bit or 64-bit DMA is available, etc.
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