kernel/drivers/gpu/drm/xe/xe_step.c, branch master

drm/xe: Cleanup unused header includes

2026-01-15T15:05:04Z

clangd reports many "unused header" warnings throughout the Xe driver. Start working to clean this up by removing unnecessary includes in our .c files and/or replacing them with explicit includes of other headers that were previously being included indirectly. By far the most common offender here was unnecessary inclusion of xe_gt.h. That likely originates from the early days of xe.ko when xe_mmio did not exist and all register accesses, including those unrelated to GTs, were done with GT functions. There's still a lot of additional #include cleanup that can be done in the headers themselves; that will come as a followup series. v2: - Squash the 79-patch series down to a single patch. (MattB) Reviewed-by: Matthew Brost Link: https://patch.msgid.link/20260115032803.4067824-2-matthew.d.roper@intel.com Signed-off-by: Matt Roper

drm/xe: Export xe_step_name for kunit tests

2025-07-02T23:08:54Z

xe_step_name() is used by xe_assert(), so adding assertions to functions like xe_device_get_gt() will result in ERROR: modpost: "xe_step_name" [drivers/gpu/drm/xe/tests/xe_test.ko] undefined! while building the kunit tests. Export xe_step_name to avoid these build failures when adding assertions. Reviewed-by: Michal Wajdeczko Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20250701201320.2514369-11-matthew.d.roper@intel.com Signed-off-by: Matt Roper

drm/xe: remove display stepping handling

2024-08-22T12:48:21Z

The code is now unused. Remove. Reviewed-by: Matt Roper Acked-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/19bc7a3197f2bc6f3c0d337487ab19f3b7f5612a.1724180287.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/xe/rpls: Add Stepping info for RPLS

2023-12-21T16:42:58Z

Add stepping-substepping info. Though it looks weird, the revision ID for the newer stepping is indeed backwards and is in accordance to the spec. v2: s/RPLS/RAPTORLAKE_S (Anusha) v3: rebase (Anusha) Signed-off-by: Anusha Srivatsa Reviewed-by: Matt Roper (v1) Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20231005205450.3177354-5-anusha.srivatsa@intel.com Signed-off-by: Rodrigo Vivi

drm/xe/rplu: s/ADLP/ALDERLAKE_P

2023-12-21T16:42:57Z

i915 now uses full names for platforms. So we now have ALDERLAKE instead of ADL. Extend this to xe driver as well. This will make it easier for macro magic usages. v2: Do not make changes to compat-i915-headers/i915_drv.h file with the rest of the changes (Jani) Cc: Jani Nikula Cc: Dnyaneshwar Bhadane Signed-off-by: Anusha Srivatsa Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20231005205450.3177354-3-anusha.srivatsa@intel.com Signed-off-by: Rodrigo Vivi

drm/xe: Print proper revid value for unknown media revision

2023-12-21T16:35:07Z

If the GMD_ID register reports a higher media revision ID than we're expecting, print the media revid, not the graphics revid, in the debug message. Reviewed-by: Gustavo Sousa Link: https://lore.kernel.org/r/20230614205202.3376752-4-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe: Add stepping support for GMD_ID platforms

2023-12-19T23:34:01Z

For platforms with GMD_ID registers, the IP stepping should be determined from the 'revid' field of those registers rather than from the PCI revid. The hardware teams have indicated that they plan to keep the revid => stepping mapping consistent across all GMD_ID platforms, with major steppings (A0, B0, C0, etc.) having revids that are multiples of 4, and minor steppings (A1, A2, A3, etc.) taking the intermediate values. For now we'll trust that hardware follows through on this plan; if they have to change direction in the future (e.g., they wind up needing something like an "A4" that doesn't fit this scheme), we can add a GMD_ID-based lookup table when the time comes. v2: - Set xe->info.platform before finding stepping; the pre-GMD_ID code relies on this value to pick a lookup table. v3: - Also set xe->info.subplatform before picking the stepping for pre-GMD_ID lookup. Reviewed-by: Balasubramani Vivekanandan Link: https://lore.kernel.org/r/20230524185952.666158-1-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe/adln: Enable ADL-N

2023-12-19T23:33:50Z

ADL-N is pretty much the same as ADL-P (i.e., Xe_LP graphics + Xe_M media + Xe_LPD display). However unlike ADL-P, there's no GuC hwconfig support so the "tgl" GuC firmware should be loaded (i.e., the same situation as ADL-S). Acked-by: Nirmoy Das Reviewed-by: Ravi Kumar Vodapalli Link: https://lore.kernel.org/r/20230419213703.3993439-2-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe/adlp: Add revid => step mapping

2023-12-19T23:33:50Z

Setup the mapping from PCI revid to IP stepping for ADL-P (and its RPL-P subplatform) in case this information becomes important for implementing workarounds. Bspec: 55376 Reviewed-by: Lucas De Marchi Link: https://lore.kernel.org/r/20230419213703.3993439-1-matthew.d.roper@intel.com Signed-off-by: Matt Roper Signed-off-by: Rodrigo Vivi

drm/xe/pvc: Remove A* steppings

2023-12-19T23:29:46Z

The PVC pre-production A* steppings are not going to be supported in xe driver - the steppings are important for the WAs and since we are not adding the pre-productions ones, there is no need to add the stepping. Signed-off-by: Lucas De Marchi Reviewed-by: Matt Roper Signed-off-by: Rodrigo Vivi