From: Dan Williams <dan.j.williams@intel.com>
To: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Keith Busch <keith.busch@intel.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux Memory Management List <linux-mm@kvack.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dave Hansen <dave.hansen@intel.com>
Subject: Re: [PATCHv4 06/13] acpi/hmat: Register processor domain to its memory
Date: Thu, 17 Jan 2019 09:01:27 -0800 [thread overview]
Message-ID: <CAPcyv4i9Doi_cE8KkB-PjzPyU2GoscvJbKTJzaX1esVQQ=dxMA@mail.gmail.com> (raw)
In-Reply-To: <CAJZ5v0jg24sNVQiA1AvVwP-uCCq1Uo9rxkAERyb_zDL_W8AATA@mail.gmail.com>
On Thu, Jan 17, 2019 at 4:11 AM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> On Wed, Jan 16, 2019 at 6:59 PM Keith Busch <keith.busch@intel.com> wrote:
> >
> > If the HMAT Subsystem Address Range provides a valid processor proximity
> > domain for a memory domain, or a processor domain with the highest
> > performing access exists, register the memory target with that initiator
> > so this relationship will be visible under the node's sysfs directory.
> >
> > Since HMAT requires valid address ranges have an equivalent SRAT entry,
> > verify each memory target satisfies this requirement.
>
> What exactly will happen after this patch?
>
> There will be some new directories under
> /sys/devices/system/node/nodeX/ if all goes well. Anything else?
When / if the memory randomization series [1] makes its way upstream
there will be a follow-on patch to enable that randomization based on
the presence of a memory-side cache published in the HMAT.
[1]: https://lwn.net/Articles/767614/
next prev parent reply other threads:[~2019-01-17 17:01 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-16 17:57 [PATCHv4 00/13] Heterogeneuos memory node attributes Keith Busch
2019-01-16 17:57 ` [PATCHv4 01/13] acpi: Create subtable parsing infrastructure Keith Busch
2019-01-16 17:57 ` [PATCHv4 02/13] acpi: Add HMAT to generic parsing tables Keith Busch
2019-01-16 17:57 ` [PATCHv4 03/13] acpi/hmat: Parse and report heterogeneous memory Keith Busch
2019-01-17 11:00 ` Rafael J. Wysocki
2019-01-17 11:00 ` Rafael J. Wysocki
2019-01-16 17:57 ` [PATCHv4 04/13] node: Link memory nodes to their compute nodes Keith Busch
2019-01-17 11:26 ` Rafael J. Wysocki
2019-01-17 11:26 ` Rafael J. Wysocki
2019-01-16 17:57 ` [PATCHv4 05/13] Documentation/ABI: Add new node sysfs attributes Keith Busch
2019-01-17 11:41 ` Rafael J. Wysocki
2019-01-17 11:41 ` Rafael J. Wysocki
2019-01-18 20:42 ` Keith Busch
2019-01-18 21:08 ` Dan Williams
2019-01-18 21:08 ` Dan Williams
2019-01-19 9:01 ` Greg Kroah-Hartman
2019-01-19 16:56 ` Dan Williams
2019-01-19 16:56 ` Dan Williams
2019-01-20 16:19 ` Rafael J. Wysocki
2019-01-20 16:19 ` Rafael J. Wysocki
2019-01-20 17:34 ` Dan Williams
2019-01-20 17:34 ` Dan Williams
2019-01-21 9:54 ` Rafael J. Wysocki
2019-01-21 9:54 ` Rafael J. Wysocki
2019-01-20 16:16 ` Rafael J. Wysocki
2019-01-20 16:16 ` Rafael J. Wysocki
2019-01-22 16:36 ` Keith Busch
2019-01-22 16:51 ` Rafael J. Wysocki
2019-01-22 16:51 ` Rafael J. Wysocki
2019-01-22 16:54 ` Rafael J. Wysocki
2019-01-22 16:54 ` Rafael J. Wysocki
2019-01-18 11:21 ` Jonathan Cameron
2019-01-18 11:21 ` Jonathan Cameron
2019-01-18 16:35 ` Dan Williams
2019-01-18 16:35 ` Dan Williams
2019-01-16 17:57 ` [PATCHv4 06/13] acpi/hmat: Register processor domain to its memory Keith Busch
2019-01-17 12:11 ` Rafael J. Wysocki
2019-01-17 12:11 ` Rafael J. Wysocki
2019-01-17 17:01 ` Dan Williams [this message]
2019-01-17 17:01 ` Dan Williams
2019-01-16 17:57 ` [PATCHv4 07/13] node: Add heterogenous memory access attributes Keith Busch
2019-01-17 15:03 ` Rafael J. Wysocki
2019-01-17 15:03 ` Rafael J. Wysocki
2019-01-17 15:41 ` Greg Kroah-Hartman
2019-01-16 17:57 ` [PATCHv4 08/13] Documentation/ABI: Add node performance attributes Keith Busch
2019-01-17 15:09 ` Rafael J. Wysocki
2019-01-17 15:09 ` Rafael J. Wysocki
2019-01-16 17:58 ` [PATCHv4 09/13] acpi/hmat: Register " Keith Busch
2019-01-17 15:21 ` Rafael J. Wysocki
2019-01-16 17:58 ` [PATCHv4 10/13] node: Add memory caching attributes Keith Busch
2019-01-17 16:00 ` Rafael J. Wysocki
2019-01-17 16:00 ` Rafael J. Wysocki
2019-02-09 8:20 ` Brice Goglin
2019-02-10 17:19 ` Jonathan Cameron
2019-02-11 15:23 ` Keith Busch
2019-02-12 8:11 ` Brice Goglin
2019-02-12 8:49 ` Jonathan Cameron
2019-02-12 17:31 ` Keith Busch
2019-01-16 17:58 ` [PATCHv4 11/13] Documentation/ABI: Add node cache attributes Keith Busch
2019-01-17 16:25 ` Rafael J. Wysocki
2019-01-17 16:25 ` Rafael J. Wysocki
2019-01-16 17:58 ` [PATCHv4 12/13] acpi/hmat: Register memory side " Keith Busch
2019-01-17 17:42 ` Rafael J. Wysocki
2019-01-17 17:42 ` Rafael J. Wysocki
2019-01-16 17:58 ` [PATCHv4 13/13] doc/mm: New documentation for memory performance Keith Busch
2019-01-17 12:58 ` [PATCHv4 00/13] Heterogeneuos memory node attributes Balbir Singh
2019-01-17 15:44 ` Keith Busch
2019-01-18 13:16 ` Balbir Singh
2019-01-17 18:18 ` Jonathan Cameron
2019-01-17 18:18 ` Jonathan Cameron
2019-01-17 19:47 ` Keith Busch
2019-01-18 11:12 ` Jonathan Cameron
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