[PATCH 0/2] Add configfs support for survivability mode

[Riana Tauro]

This RFC series proposes to expose attributes via xe configfs
subsystem. survivability mode attribute is added here that allows
the user to configure the device to enter survivability mode.

This is done by

echo "domain:bus:dev.fn" > /sys/bus/pci/drivers/xe/unbind
echo "domain:bus:dev.fn" > sys/kernel/config/xe/survivability_mode
echo "domain:bus:dev.fn" > /sys/bus/pci/drivers/xe/bind

This is an alternative to introducing module param that causes
all the connected and supported cards to enter survivability mode.
Manually entering survivability mode is useful when pcode does not
report failure and for validation

Riana Tauro (2):
  drm/xe: Add configfs to enable survivability mode
  drm/xe: Enable configfs support for survivability mode

 drivers/gpu/drm/xe/Makefile                |   1 +
 drivers/gpu/drm/xe/xe_configfs.c           | 117 +++++++++++++++++++++
 drivers/gpu/drm/xe/xe_configfs.h           |  16 +++
 drivers/gpu/drm/xe/xe_module.c             |   5 +
 drivers/gpu/drm/xe/xe_module.h             |   1 +
 drivers/gpu/drm/xe/xe_pci.c                |   8 +-
 drivers/gpu/drm/xe/xe_survivability_mode.c |  21 +++-
 7 files changed, 163 insertions(+), 6 deletions(-)
 create mode 100644 drivers/gpu/drm/xe/xe_configfs.c
 create mode 100644 drivers/gpu/drm/xe/xe_configfs.h

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2.47.1