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authorDave Jiang <dave.jiang@intel.com>2024-03-08 22:59:23 +0100
committerDan Williams <dan.j.williams@intel.com>2024-03-12 20:34:11 +0100
commitbd98cbbbf82a3086423865816e1b5ab4bb4b6c60 (patch)
tree9323fd500efac416ee9be2bc012cc1324b8a7fe8 /drivers/acpi/numa/hmat.c
parentACPI: HMAT: Introduce 2 levels of generic port access class (diff)
downloadlinux-bd98cbbbf82a3086423865816e1b5ab4bb4b6c60.tar.xz
linux-bd98cbbbf82a3086423865816e1b5ab4bb4b6c60.zip
ACPI: HMAT / cxl: Add retrieval of generic port coordinates for both access classes
Update acpi_get_genport_coordinates() to allow retrieval of both access classes of the 'struct access_coordinate' for a generic target. The update will allow CXL code to compute access coordinates for both access class. Cc: Rafael J. Wysocki <rafael@kernel.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/20240308220055.2172956-5-dave.jiang@intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/acpi/numa/hmat.c')
-rw-r--r--drivers/acpi/numa/hmat.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/acpi/numa/hmat.c b/drivers/acpi/numa/hmat.c
index a1257888a6df..75e9aac43228 100644
--- a/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -126,7 +126,8 @@ static struct memory_target *acpi_find_genport_target(u32 uid)
/**
* acpi_get_genport_coordinates - Retrieve the access coordinates for a generic port
* @uid: ACPI unique id
- * @coord: The access coordinates written back out for the generic port
+ * @coord: The access coordinates written back out for the generic port.
+ * Expect 2 levels array.
*
* Return: 0 on success. Errno on failure.
*
@@ -142,7 +143,10 @@ int acpi_get_genport_coordinates(u32 uid,
if (!target)
return -ENOENT;
- *coord = target->coord[NODE_ACCESS_CLASS_GENPORT_SINK_LOCAL];
+ coord[ACCESS_COORDINATE_LOCAL] =
+ target->coord[NODE_ACCESS_CLASS_GENPORT_SINK_LOCAL];
+ coord[ACCESS_COORDINATE_CPU] =
+ target->coord[NODE_ACCESS_CLASS_GENPORT_SINK_CPU];
return 0;
}