Commit 4caa525b authored Oct 28, 2019 by Brice Goglin Committed by Rafael J. Wysocki Nov 07, 2019

ACPI: HMAT: don't mix pxm and nid when setting memory target processor_pxm



On systems where PXMs and nids are in different order, memory initiators
exposed in sysfs could be wrong: On dual-socket CLX with SNC enabled
(4 nodes, 1 and 2 swapped between PXMs and nids), node1 would only
get node2 as initiator, and node2 would only get node1.

With this patch, we get node1 as the only initiator of itself,
and node2 as the only initiator of itself, as expected.

This should likely go to stable up to 5.2.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

parent cf8741ac

drivers/acpi/numa/hmat.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -438,7 +438,7 @@ static int __init hmat_parse_proximity_domain(union acpi_subtable_headers *heade
		pr_debug("HMAT: Invalid Processor Domain\n");
		return -EINVAL;
		}
		target->processor_pxm = p_node;
		target->processor_pxm = p->processor_PD;
		}

		return 0;

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