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From: Gavin Shan <gshan@redhat.com>
To: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, robh@kernel.org, maz@kernel.org,
	rdunlap@infradead.org, catalin.marinas@arm.com, will@kernel.org,
	shan.gavin@gmail.com
Subject: [PATCH v2 2/2] of, numa: Fetch empty NUMA node ID from distance map
Date: Mon, 27 Sep 2021 14:41:19 +0800	[thread overview]
Message-ID: <20210927064119.127285-3-gshan@redhat.com> (raw)
In-Reply-To: <20210927064119.127285-1-gshan@redhat.com>

There is no device node for the empty NUMA node. However, the
corresponding NUMA node ID and distance map is still valid in
"numa-distance-map-v1" compatible device node.

This fetches the NUMA node ID and distance map for these empty
NUMA node from "numa-distance-map-v1" compatible device node.

Signed-off-by: Gavin Shan <gshan@redhat.com>
---
 drivers/of/of_numa.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/of/of_numa.c b/drivers/of/of_numa.c
index fe6b13608e51..5949829a1b00 100644
--- a/drivers/of/of_numa.c
+++ b/drivers/of/of_numa.c
@@ -111,6 +111,8 @@ static int __init of_numa_parse_distance_map_v1(struct device_node *map)
 			return -EINVAL;
 		}
 
+		node_set(nodea, numa_nodes_parsed);
+
 		numa_set_distance(nodea, nodeb, distance);
 
 		/* Set default distance of node B->A same as A->B */
-- 
2.23.0


  parent reply	other threads:[~2021-09-27  6:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-27  6:41 [PATCH v2 0/2] Specify empty NUMA node Gavin Shan
2021-09-27  6:41 ` [PATCH v2 1/2] Documentation, dt, numa: Add note to " Gavin Shan
2021-10-04 18:13   ` Rob Herring
2021-09-27  6:41 ` Gavin Shan [this message]
2021-09-27 14:49   ` [PATCH v2 2/2] of, numa: Fetch empty NUMA node ID from distance map Rob Herring
2021-09-27 23:59     ` Gavin Shan
2021-09-28 17:22       ` Rob Herring
2021-09-29  2:00         ` Gavin Shan
2021-10-04 18:13   ` Rob Herring

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