From: Paul Walmsley <paul.walmsley@sifive.com>
To: Sudeep Holla <sudeep.holla@arm.com>, Atish Patra <atish.patra@wdc.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Peter Zijlstra \(Intel\)" <peterz@infradead.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Linus Walleij <linus.walleij@linaro.org>,
Palmer Dabbelt <palmer@sifive.com>,
Will Deacon <will.deacon@arm.com>,
Richard Fontana <rfontana@redhat.com>,
Mauro Carvalho Chehab <mchehab+samsung@kernel.org>,
linux-riscv@lists.infradead.org,
Morten Rasmussen <morten.rasmussen@arm.com>,
Rob Herring <robh@kernel.org>, Anup Patel <anup@brainfault.org>,
Russell King <linux@armlinux.org.uk>,
Ingo Molnar <mingo@kernel.org>,
devicetree@vger.kernel.org, Albert Ou <aou@eecs.berkeley.edu>,
Rob Herring <robh+dt@kernel.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Otto Sabart <ottosabart@seberm.com>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH v7 1/7] Documentation: DT: arm: add support for sockets defining package boundaries
Date: Wed, 26 Jun 2019 17:31:37 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.9999.1906261724000.23534@viisi.sifive.com> (raw)
In-Reply-To: <20190617185920.29581-2-atish.patra@wdc.com>
Hi Sudeep, Atish,
On Mon, 17 Jun 2019, Atish Patra wrote:
> From: Sudeep Holla <sudeep.holla@arm.com>
>
> The current ARM DT topology description provides the operating system
> with a topological view of the system that is based on leaf nodes
> representing either cores or threads (in an SMT system) and a
> hierarchical set of cluster nodes that creates a hierarchical topology
> view of how those cores and threads are grouped.
>
> However this hierarchical representation of clusters does not allow to
> describe what topology level actually represents the physical package or
> the socket boundary, which is a key piece of information to be used by
> an operating system to optimize resource allocation and scheduling.
>
> Lets add a new "socket" node type in the cpu-map node to describe the
> same.
>
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
This one doesn't apply cleanly here on top of v5.2-rc2, Linus's master
branch, and next-20190626. The reject file is below. Am I missing
a patch?
- Paul
--- Documentation/devicetree/bindings/arm/topology.txt
+++ Documentation/devicetree/bindings/arm/topology.txt
@@ -185,13 +206,15 @@ Bindings for cluster/cpu/thread nodes are defined as follows:
4 - Example dts
===========================================
-Example 1 (ARM 64-bit, 16-cpu system, two clusters of clusters):
+Example 1 (ARM 64-bit, 16-cpu system, two clusters of clusters in a single
+physical socket):
cpus {
#size-cells = <0>;
#address-cells = <2>;
cpu-map {
+ socket0 {
cluster0 {
cluster0 {
core0 {
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-06-27 5:39 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-17 18:59 [PATCH v7 0/7] Unify CPU topology across ARM & RISC-V Atish Patra
2019-06-17 18:59 ` [PATCH v7 1/7] Documentation: DT: arm: add support for sockets defining package boundaries Atish Patra
2019-06-27 0:31 ` Paul Walmsley [this message]
2019-06-27 2:18 ` Atish Patra
2019-06-27 19:58 ` Atish Patra
2019-06-17 18:59 ` [PATCH v7 2/7] dt-binding: cpu-topology: Move cpu-map to a common binding Atish Patra
2019-06-17 18:59 ` [PATCH v7 3/7] cpu-topology: Move cpu topology code to common code Atish Patra
2019-06-19 17:38 ` Greg Kroah-Hartman
2019-06-21 22:31 ` Atish Patra
2019-06-23 17:51 ` Paul Walmsley
2019-06-17 18:59 ` [PATCH v7 4/7] arm: Use common cpu_topology structure and functions Atish Patra
2019-06-19 12:10 ` Sudeep Holla
2019-06-24 15:06 ` Sudeep Holla
2019-06-24 15:30 ` Russell King - ARM Linux admin
2019-06-24 15:33 ` Sudeep Holla
2019-06-17 18:59 ` [PATCH v7 5/7] RISC-V: Parse cpu topology during boot Atish Patra
2019-06-17 18:59 ` [PATCH v7 6/7] base: arch_topology: update Kconfig help description Atish Patra
2019-06-17 18:59 ` [PATCH v7 7/7] MAINTAINERS: Add an entry for generic architecture topology Atish Patra
2019-06-19 17:37 ` Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=alpine.DEB.2.21.9999.1906261724000.23534@viisi.sifive.com \
--to=paul.walmsley@sifive.com \
--cc=Jonathan.Cameron@huawei.com \
--cc=anup@brainfault.org \
--cc=aou@eecs.berkeley.edu \
--cc=atish.patra@wdc.com \
--cc=catalin.marinas@arm.com \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=linux@armlinux.org.uk \
--cc=mark.rutland@arm.com \
--cc=mchehab+samsung@kernel.org \
--cc=mingo@kernel.org \
--cc=morten.rasmussen@arm.com \
--cc=ottosabart@seberm.com \
--cc=palmer@sifive.com \
--cc=peterz@infradead.org \
--cc=rafael@kernel.org \
--cc=rfontana@redhat.com \
--cc=robh+dt@kernel.org \
--cc=robh@kernel.org \
--cc=sudeep.holla@arm.com \
--cc=tglx@linutronix.de \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).