[RFC/PATCH 0/16] Ops based MSI Implementation

Michael Ellerman michael at ellerman.id.au
Fri Jan 26 12:03:21 EST 2007


On Thu, 2007-01-25 at 13:53 -0800, Greg KH wrote:
> On Thu, Jan 25, 2007 at 07:34:07PM +1100, Michael Ellerman wrote:
> > OK, here's a first cut at moving ops based MSI into the generic code. I'm
> > posting this now to make sure I'm not heading off into the weeds.
> > 
> > The fifth patch contain the guts of it, I've included the MPIC and
> > RTAS backends as examples. In fact they actually work.
> > 
> > In order to smoothly merge this with the old MSI code, the two will need to
> > coexist in the tree for at least a few commits, so I've added (invisible)
> > Kconfig symbols to allow that.
> > 
> > I plan to merge the Intel code by:
> >  * copying it into drivers/pci/msi/intel.c with zero changes.
> >  * providing a minimal shim to connect the ops code to the intel code.
> >  * at this point the code should be functional but ugly as hell.
> >  * via a longish series of patches, adapt the intel code to better match
> >    the new ops code.
> >  * this should allow us to bisect through to find any mistakes.
> > 
> > If people think that's crazy and or stupid please let me know :)
> 
> At first glance, this looks sane.  I'll apply the first 4 patches to my
> trees, and hold off on the rest until you have the intel patches
> finished.

Cool, thanks.

cheers

-- 
Michael Ellerman
OzLabs, IBM Australia Development Lab

wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)

We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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