[PATCH v2 0/2] drm/xe: Add support for GPU health indicator

[Soham Purkait <soham.purkait@intel.com>]

GPUs commonly rely on various reactive health monitoring
approaches. The Xe GPU health indicator is intended to fit into
such reactive monitoring flows, where it could be used by
management tools to fetch and update GPU health status.

This series adds Xe GPU health indicator support as a RAS feature.
It introduces the health command IDs and request/response structures
used by the System Controller mailbox, and integrates the feature
into Xe through the gpu_health sysfs interface.

The sysfs file, gpu_health, is created at the device level and
provides a simple interface for observing and updating the reported
GPU health state. It is exposed as read-write on PF/native functions
and read-only on VFs.

The sysfs file (gpu_health) is placed at the device level and behaves
as follows:

$ cat /sys/.../device/gpu_health
ok

$ echo critical > /sys/.../device/gpu_health

$ cat /sys/.../device/gpu_health
critical

Soham Purkait (2):
  drm/xe/xe_ras: Add types and commands for RAS GPU health indicator
  drm/xe/xe_ras: Add RAS support for GPU health indicator

 .../ABI/testing/sysfs-driver-intel-xe-ras     |  33 +++
 drivers/gpu/drm/xe/Makefile                   |   1 +
 drivers/gpu/drm/xe/xe_device.c                |   3 +
 drivers/gpu/drm/xe/xe_ras.c                   | 202 ++++++++++++++++++
 drivers/gpu/drm/xe/xe_ras.h                   |  13 ++
 drivers/gpu/drm/xe/xe_ras_types.h             |  83 +++++++
 drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h |  15 ++
 7 files changed, 350 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-intel-xe-ras
 create mode 100644 drivers/gpu/drm/xe/xe_ras.c
 create mode 100644 drivers/gpu/drm/xe/xe_ras.h
 create mode 100644 drivers/gpu/drm/xe/xe_ras_types.h

-- 
2.34.1