Subject: Re: [PATCH V6 05/13] acpi, pci: Support IO resources when parsing PCI
 host bridge resources.
To: Bjorn Helgaas <helgaas@kernel.org>, Tomasz Nowicki <tn@semihalf.com>
References: <1460740008-19489-1-git-send-email-tn@semihalf.com>
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 <20160427023916.GF6789@localhost> <57204FDB.6010202@redhat.com>
Cc: arnd@arndb.de, will.deacon@arm.com, catalin.marinas@arm.com,
        rafael@kernel.org, hanjun.guo@linaro.org, Lorenzo.Pieralisi@arm.com,
        okaya@codeaurora.org, jiang.liu@linux.intel.com, jchandra@broadcom.com,
        robert.richter@caviumnetworks.com, mw@semihalf.com,
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        Suravee.Suthikulpanit@amd.com, msalter@redhat.com,
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From: Jon Masters <jcm@redhat.com>
Message-ID: <57228671.7060606@redhat.com>
Date: Thu, 28 Apr 2016 17:53:53 -0400
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On 04/27/2016 01:36 AM, Jon Masters wrote:
> On 04/26/2016 10:39 PM, Bjorn Helgaas wrote:

>> It would be ideal to find
>> some way to handle ia64 and ARM64 similarly.  At the very least, we
>> have to make sure that this doesn't break ia64.  The ia64 dense/sparse
>> I/O spaces complicate things; I don't know if ARM64 has something
>> similar or not.
> 
> There's nothing directly similar - it's just regular MMIO.

Just a footnote on the IA64 thing. I'm working on getting access to a
few Itanium systems and running V6 on these (even bought my first
Itanium system today so I can run this at home also). I'm also chatting
with the internal RH QE folks about testing on a few dozen x86 systems.
Will followup when we've any results on that testing.

Jon.

-- 
Computer Architect | Sent from my Fedora powered laptop