Re: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper function.

[Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>]

On Thu, Jun 26, 2014 at 10:30:29AM +0100, Liviu Dudau wrote:
> On Thu, Jun 26, 2014 at 09:59:26AM +0100, Catalin Marinas wrote:
> > Although a bit late, I'm raising this now and hopefully we'll come to a
> > conclusion soon. Delaying arm64 PCIe support even further is not a real
> > option, which leaves us with:
> > 
> > 1. Someone else (with enough PCIe knowledge) volunteering to take over
> >    soon or
> > 2. Dropping Liviu's work and going for an arm64-specific implementation
> >    (most likely based on the arm32 implementation, see below)
[...]
> > In conclusion, unless someone volunteers for the first option fairly
> > soon, we'll post the alternative patches for review and take it from
> > there.
> 
> That would be a huge step backwards IMO and a huge dissapointment. If
> you go with the alternative patches from Will you will basically reset
> every partner's implementation that has been built on top of my
> patches (when they did so with the understanding that my series will be
> the one ARM will support and publish) *and* make anyone's attempt to
> create a generic implementation harder, as they will have to undo this
> code to remove the arch-specific parts.

I fully agree and the alternative patchset is definitely _not_ my
preferred solution. You can read this email as a request for help to
complete the work (whether it comes from ARM, Linaro or other interested
parties). I don't mean taking over the whole patchset but potentially
helping with other arch conversion (microblaze, arm multi-platform).

(however, if the generic PCIe work won't happen in reasonable time, we
need to set some deadline rather than keeping the patchset out of tree
indefinitely)

-- 
Catalin
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