[PATCH v4 00/13] drm/xe: Add psmi support

Lucas De Marchi lucas.demarchi at intel.com
Mon Aug 18 17:37:25 UTC 2025


Add PSMI support to aid debugging. More information about PSMI is in the
first and second patches.

Expose the toggle to enable it via configfs, which allows to debug just
one of the possible cards attached.

The buffer allocation request is done via debugfs.

In order to apply WAs conditionally to using PSMI, a new
RTP match is also added.

The rest of the patches are improvements to our configfs integration
that I've been collecting while reviewing other semi-related patches.

Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
Changes in v4:
- Rebase and handle feedback from reviews as noted in individual patches
- One open is if the reserved buffer needs to be cleared
- Link to v3: https://lore.kernel.org/r/20250808-psmi-v3-0-a111e9f1e4b7@intel.com

Changes in v3:
- Rebase and refactor on multiple configfs changes
- Add patches to log to dmesg when non-default configfs value is found
- Block runtime changes of configfs attributes as they don't have any
  effect
- Improve documentation
- Link to v2: https://lore.kernel.org/r/20250723-psmi-v2-0-84a04b5a3c04@intel.com

Changes in v2:
- configfs
- some refactors as noted on individual patches
- Link to v1: https://lore.kernel.org/r/20250716-psmi-v1-0-674c13d7028e@intel.com
---
Badal Nilawar (1):
      drm/xe/psmi: Add Wa_14020001231

Lucas De Marchi (11):
      drm/xe/psmi: Add GuC flag to enable PSMI
      drm/xe/psmi: Add debugfs interface for PSMI
      drm/xe/rtp: Add match for psmi
      drm/xe/configfs: Simplify kernel doc
      drm/xe/configfs: Allow to enable PSMI
      drm/xe/configfs: Use guard() for dev->lock
      drm/xe/configfs: Block runtime attribute changes
      drm/xe/configfs: Use tree-like output in documentation
      drm/xe/configfs: Improve documentation steps
      drm/xe/configfs: Minor fixes to documentation
      drm/xe/configfs: Dump custom settings when binding

Vinay Belgaumkar (1):
      drm/xe/psmi: Add Wa_16023683509

 drivers/gpu/drm/xe/Makefile           |   1 +
 drivers/gpu/drm/xe/abi/guc_klvs_abi.h |   1 +
 drivers/gpu/drm/xe/xe_configfs.c      | 211 +++++++++++++++++++----
 drivers/gpu/drm/xe/xe_configfs.h      |   4 +
 drivers/gpu/drm/xe/xe_debugfs.c       |   3 +
 drivers/gpu/drm/xe/xe_device.c        |   5 +
 drivers/gpu/drm/xe/xe_device_types.h  |   8 +
 drivers/gpu/drm/xe/xe_guc.c           |  10 +-
 drivers/gpu/drm/xe/xe_guc_ads.c       |   4 +
 drivers/gpu/drm/xe/xe_guc_fwif.h      |   2 +
 drivers/gpu/drm/xe/xe_pci.c           |   3 +
 drivers/gpu/drm/xe/xe_psmi.c          | 306 ++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/xe/xe_psmi.h          |  14 ++
 drivers/gpu/drm/xe/xe_rtp.c           |   7 +
 drivers/gpu/drm/xe/xe_rtp.h           |   3 +
 drivers/gpu/drm/xe/xe_wa_oob.rules    |   6 +
 16 files changed, 555 insertions(+), 33 deletions(-)

base-commit: edead24a80ae92312f75626eb92f2771ec5a7697
change-id: 20250618-psmi-9f270bf67895

Lucas De Marchi



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