From: Jerome Glisse <jglisse@redhat.com>
To: Logan Gunthorpe <logang@deltatee.com>
Cc: Dan Williams <dan.j.williams@intel.com>,
Andi Kleen <ak@linux.intel.com>, Linux MM <linux-mm@kvack.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Dave Hansen <dave.hansen@intel.com>,
Haggai Eran <haggaie@mellanox.com>,
balbirs@au1.ibm.com,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
"Kuehling, Felix" <felix.kuehling@amd.com>,
Philip.Yang@amd.com, "Koenig,
Christian" <christian.koenig@amd.com>,
"Blinzer, Paul" <Paul.Blinzer@amd.com>,
John Hubbard <jhubbard@nvidia.com>,
rcampbell@nvidia.com
Subject: Re: [RFC PATCH 02/14] mm/hms: heterogenenous memory system (HMS) documentation
Date: Wed, 5 Dec 2018 18:27:10 -0500 [thread overview]
Message-ID: <20181205232710.GP3536@redhat.com> (raw)
In-Reply-To: <af781c8a-1990-c091-0471-5b2d873ee526@deltatee.com>
On Wed, Dec 05, 2018 at 04:23:42PM -0700, Logan Gunthorpe wrote:
>
>
> On 2018-12-05 4:20 p.m., Jerome Glisse wrote:
> > And my proposal is under /sys/bus and have symlink to all existing
> > device it agregate in there.
>
> That's so not the point. Use the existing buses don't invent some
> virtual tree. I don't know how many times I have to say this or in how
> many ways. I'm not responding anymore.
And how do i express interaction with different buses because i just
do not see how to do that in the existing scheme. It would be like
teaching to each bus about all the other bus versus having each bus
register itself under a common framework and have all the interaction
between bus mediated through that common framework avoiding code
duplication accross buses.
>
> > So you agree with my proposal ? A sysfs directory in which all the
> > bus and how they are connected to each other and what is connected
> > to each of them (device, CPU, memory).
>
> I'm fine with the motivation. What I'm arguing against is the
> implementation and the fact you have to create a whole grand new
> userspace API and hierarchy to accomplish it.
>
> Logan
next prev parent reply other threads:[~2018-12-05 23:27 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-03 23:34 [RFC PATCH 00/14] Heterogeneous Memory System (HMS) and hbind() jglisse
2018-12-03 23:34 ` [RFC PATCH 01/14] mm/hms: heterogeneous memory system (sysfs infrastructure) jglisse
2018-12-03 23:34 ` [RFC PATCH 02/14] mm/hms: heterogenenous memory system (HMS) documentation jglisse
2018-12-04 17:06 ` Andi Kleen
2018-12-04 18:24 ` Jerome Glisse
2018-12-04 18:31 ` Dan Williams
2018-12-04 18:57 ` Jerome Glisse
2018-12-04 19:11 ` Logan Gunthorpe
2018-12-04 19:22 ` Jerome Glisse
2018-12-04 19:41 ` Logan Gunthorpe
2018-12-04 20:13 ` Jerome Glisse
2018-12-04 20:30 ` Logan Gunthorpe
2018-12-04 20:59 ` Jerome Glisse
2018-12-04 21:19 ` Logan Gunthorpe
2018-12-04 21:51 ` Jerome Glisse
2018-12-04 22:16 ` Logan Gunthorpe
2018-12-04 23:56 ` Jerome Glisse
2018-12-05 1:15 ` Logan Gunthorpe
2018-12-05 2:31 ` Jerome Glisse
2018-12-05 17:41 ` Logan Gunthorpe
2018-12-05 18:07 ` Jerome Glisse
2018-12-05 18:20 ` Logan Gunthorpe
2018-12-05 18:33 ` Jerome Glisse
2018-12-05 18:48 ` Logan Gunthorpe
2018-12-05 18:55 ` Jerome Glisse
2018-12-05 19:10 ` Logan Gunthorpe
2018-12-05 22:58 ` Jerome Glisse
2018-12-05 23:09 ` Logan Gunthorpe
2018-12-05 23:20 ` Jerome Glisse
2018-12-05 23:23 ` Logan Gunthorpe
2018-12-05 23:27 ` Jerome Glisse [this message]
2018-12-06 0:08 ` Dan Williams
2018-12-05 2:34 ` Dan Williams
2018-12-05 2:37 ` Jerome Glisse
2018-12-05 17:25 ` Logan Gunthorpe
2018-12-05 18:01 ` Jerome Glisse
2018-12-04 20:14 ` Andi Kleen
2018-12-04 20:47 ` Logan Gunthorpe
2018-12-04 21:15 ` Jerome Glisse
2018-12-04 19:19 ` Dan Williams
2018-12-04 19:32 ` Jerome Glisse
2018-12-04 20:12 ` Andi Kleen
2018-12-04 20:41 ` Jerome Glisse
2018-12-05 4:36 ` Aneesh Kumar K.V
2018-12-05 4:41 ` Jerome Glisse
2018-12-05 10:52 ` Mike Rapoport
2018-12-03 23:34 ` [RFC PATCH 03/14] mm/hms: add target memory to heterogeneous memory system infrastructure jglisse
2018-12-03 23:34 ` [RFC PATCH 04/14] mm/hms: add initiator " jglisse
2018-12-03 23:35 ` [RFC PATCH 05/14] mm/hms: add link " jglisse
2018-12-03 23:35 ` [RFC PATCH 06/14] mm/hms: add bridge " jglisse
2018-12-03 23:35 ` [RFC PATCH 07/14] mm/hms: register main memory with heterogenenous memory system jglisse
2018-12-03 23:35 ` [RFC PATCH 08/14] mm/hms: register main CPUs " jglisse
2018-12-03 23:35 ` [RFC PATCH 09/14] mm/hms: hbind() for heterogeneous memory system (aka mbind() for HMS) jglisse
2018-12-03 23:35 ` [RFC PATCH 10/14] mm/hbind: add heterogeneous memory policy tracking infrastructure jglisse
2018-12-03 23:35 ` [RFC PATCH 11/14] mm/hbind: add bind command to heterogeneous memory policy jglisse
2018-12-03 23:35 ` [RFC PATCH 12/14] mm/hbind: add migrate command to hbind() ioctl jglisse
2018-12-03 23:35 ` [RFC PATCH 13/14] drm/nouveau: register GPU under heterogeneous memory system jglisse
2018-12-03 23:35 ` [RFC PATCH 14/14] test/hms: tests for " jglisse
2018-12-04 7:44 ` [RFC PATCH 00/14] Heterogeneous Memory System (HMS) and hbind() Aneesh Kumar K.V
2018-12-04 14:44 ` Jerome Glisse
2018-12-04 18:02 ` Dave Hansen
2018-12-04 18:49 ` Jerome Glisse
2018-12-04 18:54 ` Dave Hansen
2018-12-04 19:11 ` Jerome Glisse
2018-12-04 21:37 ` Dave Hansen
2018-12-04 21:57 ` Jerome Glisse
2018-12-04 23:58 ` Dave Hansen
2018-12-05 0:29 ` Jerome Glisse
2018-12-05 1:22 ` Kuehling, Felix
2018-12-05 11:27 ` Aneesh Kumar K.V
2018-12-05 16:09 ` Jerome Glisse
2018-12-04 23:54 ` Dave Hansen
2018-12-05 0:15 ` Jerome Glisse
2018-12-05 1:06 ` Dave Hansen
2018-12-05 2:13 ` Jerome Glisse
2018-12-05 17:27 ` Dave Hansen
2018-12-05 17:53 ` Jerome Glisse
2018-12-06 18:25 ` Dave Hansen
2018-12-06 19:20 ` Jerome Glisse
2018-12-06 19:31 ` Dave Hansen
2018-12-06 20:11 ` Logan Gunthorpe
2018-12-06 22:04 ` Dave Hansen
2018-12-06 22:39 ` Jerome Glisse
2018-12-06 23:09 ` Dave Hansen
2018-12-06 23:28 ` Logan Gunthorpe
2018-12-06 23:34 ` Dave Hansen
2018-12-06 23:38 ` Dave Hansen
2018-12-06 23:48 ` Logan Gunthorpe
2018-12-07 0:20 ` Jerome Glisse
2018-12-07 15:06 ` Jonathan Cameron
2018-12-07 19:37 ` Jerome Glisse
2018-12-07 0:15 ` Jerome Glisse
2018-12-06 20:27 ` Jerome Glisse
2018-12-06 21:46 ` Jerome Glisse
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