On 10/29/2026 2:29 PM, Zack McKevitt wrote:
Add a new node type, attribute set, and doit/dump functions for
performing telemetry read and write operations using the DRM RAS
interface.
ynl-regen.sh was used to regenerate drm_ras_nl.c, drm_ras_nl.h, and
include/uapi/drm/drm_ras.h from the drm_ras.yaml spec.
Signed-off-by: Zack McKevitt <[email protected]>
One minor nit below.
Reviewed-by: Jeff Hugo <[email protected]>
diff --git a/Documentation/netlink/specs/drm_ras.yaml
b/Documentation/netlink/specs/drm_ras.yaml
index a88fdab7a1c7..a02aaed8772f 100644
--- a/Documentation/netlink/specs/drm_ras.yaml
+++ b/Documentation/netlink/specs/drm_ras.yaml
@@ -16,11 +16,11 @@ definitions:
type: enum
name: node-type
value-start: 1
- entries: [error-counter]
+ entries: [error-counter, telemetry]
doc: >-
- Type of the node. Currently, only error-counter nodes are
- supported, which expose reliability counters for a hardware/software
- component.
+ Type of the node. The error-counter nodes expose reliability counters
+ for a hardware/software component, and telemetry nodes expose an
+ interface for reading and writing telemetry values to a device.
attribute-sets:
-
@@ -100,6 +100,34 @@ attribute-sets:
name: error-value
type: u32
doc: Current value of the error counter.
+ -
+ name: telemetry-attrs
+ attributes:
+ -
+ name: node-id
+ type: u32
+ doc: >-
+ Unique identifier for the node.
+ Assigned dynamically by the DRM RAS core upon registration.
+ -
+ name: field
+ type: u32
+ doc: Telemetry field to be read/written, e.g., SoC temp.
+ -
+ name: field-name
+ type: string
+ doc: Name of the telemetry field defined by the device's uapi.
uapi -> uAPI
Might as well be consistent with the documentation elsewhere in this patch.
