Messages in this thread | | | From | Roland Dreier <> | Subject | Re: HELP: Is writeq an atomic operation?? | Date | Fri, 02 May 2008 17:10:25 -0700 |
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> Under platforms where writeq is not defined, what should I do?
Umm... is it too late to change your chip design?
Seriously, for example on PowerPC 440SPe (which has a PCIe bus on a 32-bit PowerPC core), I don't know any way you can generate a 64-bit PCI transaction. Even on 32-bit x86 I think you're stuck using something ugly like MMX to do it.
Basically it's going to be architecture-dependent at best.
- R.
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