[PATCH 0/2] Enable Survivability mode

[Riana Tauro]

Boot Survivability is a software based workflow for recovering a system
in a failed boot state. Here system recoverability is concerned with
recovering the firmware responsible for boot.

This is implemented by loading the driver with bare minimum (no drm card)
to allow the firmware to be flashed through mei/gsc and collect telemetry.
The driver's probe flow is modified such that it enters survivability mode
when pcode initialization is incomplete and boot status denotes a failure.
In this mode, drm card is not exposed and PCI sysfs is used to indicate
survivability mode and provide additional information required for debug

TODO : Notify mei

Riana Tauro (2):
  drm/xe: Add functions and sysfs for boot survivability
  drm/xe: Enable Boot Survivability mode

 drivers/gpu/drm/xe/Makefile                   |   1 +
 drivers/gpu/drm/xe/xe_device.c                |   9 +-
 drivers/gpu/drm/xe/xe_device_types.h          |   4 +
 drivers/gpu/drm/xe/xe_pci.c                   |  13 +
 drivers/gpu/drm/xe/xe_pcode_api.h             |  14 ++
 drivers/gpu/drm/xe/xe_survivability_mode.c    | 228 ++++++++++++++++++
 drivers/gpu/drm/xe/xe_survivability_mode.h    |  17 ++
 .../gpu/drm/xe/xe_survivability_mode_types.h  |  35 +++
 8 files changed, 319 insertions(+), 2 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_survivability_mode.c
 create mode 100644 drivers/gpu/drm/xe/xe_survivability_mode.h
 create mode 100644 drivers/gpu/drm/xe/xe_survivability_mode_types.h

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2.47.1