[PATCH v2 0/2] drm/xe/sysctrl: Add fwctl support for System Controller

From: Anoop Vijay <[email protected]>

This series adds FWCTL support for the Xe System Controller (sysctrl)
firmware.

The Xe System Controller is a firmware-managed entity responsible for
selected platform-level control and coordination tasks on Intel Xe3p
discrete GPU platforms. This series registers a
FWCTL_DEVICE_TYPE_XE_SYSCTRL device so userspace can query sysctrl
capabilities and issue RPC requests through the generic
/dev/fwctl/fwctlN interface.

Supported operations are ECC status query, RAS error-injection
capability query, and RAS error injection, each gated by the
appropriate FWCTL_RPC scope and a per-context capability bit.

---
v2: (Rodrigo)
- Rename FWCTL_DEVICE_TYPE_XE to FWCTL_DEVICE_TYPE_XE_SYSCTRL, one type
  per firmware instead of a shared Xe-wide type
- Rename xe.h to xe_sysctrl.h to match
- Squash uapi and type definitions into a single patch
- Replace validate_scope() with explicit per-op scope/capability checks
  in xe_sysctrl_fwctl_rpc()
---

Anoop Vijay (2):
  drm/xe/sysctrl: Add System Controller get application status
  drm/xe/sysctrl: Add fwctl support for System Controller

 Documentation/userspace-api/fwctl/index.rst   |   1 +
 .../userspace-api/fwctl/xe_sysctrl.rst        | 120 +++++++++
 drivers/gpu/drm/xe/Kconfig                    |   1 +
 drivers/gpu/drm/xe/Makefile                   |   1 +
 drivers/gpu/drm/xe/xe_device.c                |   5 +
 drivers/gpu/drm/xe/xe_sysctrl.c               |  82 ++++++
 drivers/gpu/drm/xe/xe_sysctrl.h               |   2 +
 drivers/gpu/drm/xe/xe_sysctrl_fwctl.c         | 251 ++++++++++++++++++
 drivers/gpu/drm/xe/xe_sysctrl_fwctl.h         |  13 +
 drivers/gpu/drm/xe/xe_sysctrl_mailbox_types.h | 151 +++++++++++
 include/uapi/fwctl/fwctl.h                    |   1 +
 include/uapi/fwctl/xe_sysctrl.h               | 117 ++++++++
 12 files changed, 745 insertions(+)
 create mode 100644 Documentation/userspace-api/fwctl/xe_sysctrl.rst
 create mode 100644 drivers/gpu/drm/xe/xe_sysctrl_fwctl.c
 create mode 100644 drivers/gpu/drm/xe/xe_sysctrl_fwctl.h
 create mode 100644 include/uapi/fwctl/xe_sysctrl.h

-- 
2.43.0