From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jerome Glisse <jglisse@redhat.com>
Subject: Re: [RFC PATCH 1/5] pci/p2p: add a function to test peer to peer
 capability
Date: Tue, 29 Jan 2019 15:00:31 -0500
Message-ID: <20190129200031.GL3176@redhat.com>
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To: Alex Deucher <alexdeucher@gmail.com>
Cc: linux-mm <linux-mm@kvack.org>, Joerg Roedel <jroedel@suse.de>, "Rafael J . Wysocki" <rafael@kernel.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Felix Kuehling <Felix.Kuehling@amd.com>, LKML <linux-kernel@vger.kernel.org>, Maling list - DRI developers <dri-devel@lists.freedesktop.org>, Christoph Hellwig <hch@lst.de>, iommu@lists.linux-foundation.org, Jason Gunthorpe <jgg@mellanox.com>, Linux PCI <linux-pci@vger.kernel.org>, Bjorn Helgaas <bhelgaas@google.com>, Robin Murphy <robin.murphy@arm.com>, Logan Gunthorpe <logang@deltatee.com>, Christian Koenig <christian.koenig@amd.com>, Marek Szyprowski <m.szyprowski@samsung.com>
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On Tue, Jan 29, 2019 at 02:56:38PM -0500, Alex Deucher wrote:
> On Tue, Jan 29, 2019 at 12:47 PM <jglisse@redhat.com> wrote:
> >
> > From: Jérôme Glisse <jglisse@redhat.com>
> >
> > device_test_p2p() return true if two devices can peer to peer to
> > each other. We add a generic function as different inter-connect
> > can support peer to peer and we want to genericaly test this no
> > matter what the inter-connect might be. However this version only
> > support PCIE for now.
> >
> 
> What about something like these patches:
> https://cgit.freedesktop.org/~deathsimple/linux/commit/?h=p2p&id=4fab9ff69cb968183f717551441b475fabce6c1c
> https://cgit.freedesktop.org/~deathsimple/linux/commit/?h=p2p&id=f90b12d41c277335d08c9dab62433f27c0fadbe5
> They are a bit more thorough.

Yes it would be better, i forgot about those. I can include them
next time i post. Thank you for reminding me about those :)

Cheers,
Jérôme