diff options
| -rw-r--r-- | drivers/cxl/core/region.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/cxl/core/region.c b/drivers/cxl/core/region.c index 27e63e6dab7c..9a5fd3da539d 100644 --- a/drivers/cxl/core/region.c +++ b/drivers/cxl/core/region.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright(c) 2022 Intel Corporation. All rights reserved. */ +#include <linux/acpi.h> #include <linux/memregion.h> #include <linux/genalloc.h> #include <linux/debugfs.h> @@ -2630,7 +2631,19 @@ static bool cxl_region_update_coordinates(struct cxl_region *cxlr, int nid) for (int i = 0; i < ACCESS_COORDINATE_MAX; i++) { if (cxlr->coord[i].read_bandwidth) { - node_update_perf_attrs(nid, &cxlr->coord[i], i); + /* + * A CFMWS-only node (not backed by a real SRAT pxm) + * has no HMAT memory_target, so hmat_callback() + * never created the access attributes for it: + * create them here instead of only updating them. + * This is called at most once per node (see + * nodemask_region_seen), so the attributes are not + * created twice. + */ + if (!acpi_node_backed_by_real_pxm(nid)) + node_set_perf_attrs(nid, &cxlr->coord[i], i); + else + node_update_perf_attrs(nid, &cxlr->coord[i], i); cset++; } } |