linux-kernel - [PATCH 0/2] Fix NUMA sched domain build errors for GNR-X and CWF-X

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Message-Id: <cover.1755893468.git.tim.c.chen@linux.intel.com>
Date: Fri, 22 Aug 2025 13:14:13 -0700
From: Tim Chen <tim.c.chen@...ux.intel.com>
To: Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...hat.com>
Cc: Tim Chen <tim.c.chen@...ux.intel.com>,
	Juri Lelli <juri.lelli@...hat.com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Ben Segall <bsegall@...gle.com>,
	Mel Gorman <mgorman@...e.de>,
	Valentin Schneider <vschneid@...hat.com>,
	Tim Chen <tim.c.chen@...el.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Libo Chen <libo.chen@...cle.com>,
	Abel Wu <wuyun.abel@...edance.com>,
	Len Brown <len.brown@...el.com>,
	linux-kernel@...r.kernel.org,
	Chen Yu <yu.c.chen@...el.com>,
	K Prateek Nayak <kprateek.nayak@....com>,
	"Gautham R . Shenoy" <gautham.shenoy@....com>,
	Zhao Liu <zhao1.liu@...el.com>,
	Vinicius Costa Gomes <vinicius.gomes@...el.com>
Subject: [PATCH 0/2] Fix NUMA sched domain build errors for GNR-X and CWF-X

While testing Granite Rapids X (GNR-X) and Clearwater Forest X (CWF-X) in
SNc-3 mode, we encountered sched domain build errors reported in dmesg.
Asymmetric node distances from local node to to nodes in remote package
was not expected by the scheduler domain code and also led to excessive
number of sched domain hierachy levels.

Fix the missing NUMA domain level set in topology_span_sane() check and
also simplify the distance to nodes in remote package to retain distance
symmetry and make the NUMA topology sane for GNR-X and CWF-X.

Tim Chen (1):
  sched: Fix sched domain build error for GNR-X, CWF-X in SNC-3 mode

Vinicius Costa Gomes (1):
  sched: topology: Fix topology validation error

 arch/x86/kernel/smpboot.c      | 28 ++++++++++++++++++++++++++++
 include/linux/sched/topology.h |  1 +
 kernel/sched/topology.c        | 33 +++++++++++++++++++++++++++------
 3 files changed, 56 insertions(+), 6 deletions(-)

-- 
2.32.0