diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-platform')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-platform | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-platform b/Documentation/ABI/testing/sysfs-bus-platform index 5172a6124b27..194ca700e962 100644 --- a/Documentation/ABI/testing/sysfs-bus-platform +++ b/Documentation/ABI/testing/sysfs-bus-platform @@ -18,3 +18,13 @@ Description: devices to opt-out of driver binding using a driver_override name such as "none". Only a single driver may be specified in the override, there is no support for parsing delimiters. + +What: /sys/bus/platform/devices/.../numa_node +Date: June 2020 +Contact: Barry Song <song.bao.hua@hisilicon.com> +Description: + This file contains the NUMA node to which the platform device + is attached. It won't be visible if the node is unknown. The + value comes from an ACPI _PXM method or a similar firmware + source. Initial users for this file would be devices like + arm smmu which are populated by arm64 acpi_iort. |