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Date:   Thu, 13 Apr 2017 09:39:06 +0100
From:   David Woodhouse <>
To:     Tony Luck <>
Cc:     "" <>,
        "" <>,
        Linux Kernel Mailing List <>
Subject: Re: [PATCH v2 25/27] ia64: Use generic pci_mmap_resource_range()

On Wed, 2017-04-12 at 14:47 -0700, Tony Luck wrote:
> On Wed, Apr 12, 2017 at 5:26 AM, David Woodhouse <> wrote:
> > 
> > From: David Woodhouse <>
> > 
> > Now that we eliminated the different behaviour in separately-reviewable
> > commits, we can switch IA64 to the generic implementation.
> > 
> > Signed-off-by: David Woodhouse <>
> Well it builds and boots on my last remaining ia64 machine. No warnings
> or weird stuff in the console log.  So you can mark the three ia64 patches

Thanks. The interesting test is whether you can correctly map PCI BARs
through /proc/bus/pci and /sys/bus/pci?

And if you find a prefetchable BAR you can scribble on, does the box
explode if you do it both WC and UC at the same time? should validate WC mappings and
look something like this...

[fedora@...172-31-55-194 ~]$ sudo ./pcimmap_copy /sys/bus/pci/devices/0000\:00\:1e.0/resource4 0
Copied 1000 loops in 0.354437301s
[fedora@...172-31-55-194 ~]$ sudo ./pcimmap_copy /sys/bus/pci/devices/0000\:00\:1e.0/resource4_wc 0
Copied 1000 loops in 0.057309254s

Download attachment "smime.p7s" of type "application/x-pkcs7-signature" (4938 bytes)

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