linux-kernel - Re: [PATCH V6 05/13] acpi, pci: Support IO resources when parsing PCI host bridge resources.

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Message-ID: <57228671.7060606@redhat.com>
Date:	Thu, 28 Apr 2016 17:53:53 -0400
From:	Jon Masters <jcm@...hat.com>
To:	Bjorn Helgaas <helgaas@...nel.org>,
	Tomasz Nowicki <tn@...ihalf.com>
Cc:	arnd@...db.de, will.deacon@....com, catalin.marinas@....com,
	rafael@...nel.org, hanjun.guo@...aro.org,
	Lorenzo.Pieralisi@....com, okaya@...eaurora.org,
	jiang.liu@...ux.intel.com, jchandra@...adcom.com,
	robert.richter@...iumnetworks.com, mw@...ihalf.com,
	Liviu.Dudau@....com, ddaney@...iumnetworks.com,
	wangyijing@...wei.com, Suravee.Suthikulpanit@....com,
	msalter@...hat.com, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-acpi@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-acpi@...ts.linaro.org
Subject: Re: [PATCH V6 05/13] acpi, pci: Support IO resources when parsing PCI
 host bridge resources.

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