Messages in this thread | | | Date | Fri, 02 May 2008 15:49:07 -0700 (PDT) | Subject | Re: HELP: Is writeq an atomic operation?? | From | David Miller <> |
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From: Roland Dreier <rdreier@cisco.com> Date: Fri, 02 May 2008 15:43:32 -0700
> Are there any 32-bit platforms with writeq()? A quick grep suggests not.
Right, I guess there aren't, but what drivers do currently is roll their own 64-bit MMIO for such cases.
I noticed this when writing drivers/net/niu.c
I suppose this is on purpose, so the driver can setup any such protection and handling, as needed.
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