[PATCH v5 00/12] drm/xe: Add psmi support

Lucas De Marchi lucas.demarchi at intel.com
Thu Aug 21 16:17:55 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 v5:
- Fix wrong check for GRAPHICS_STEP
- Remove patch to block changes in runtime: that needs changes in igt
  that can wait those patches to be reviewed:
  https://patchwork.freedesktop.org/series/153175/
- Link to v4: https://lore.kernel.org/r/20250818-psmi-v4-0-a330783ce1c0@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 (10):
      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: 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      | 170 +++++++++++++++----
 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, 514 insertions(+), 33 deletions(-)

base-commit: 16e133c7e6922a9f224b272a48ac172cf06e3408
change-id: 20250618-psmi-9f270bf67895

Lucas De Marchi



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