drm/i915/pvc: Extract stepping information from PCI revid

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For PVC, the base die and compute tile have separate stepping values
that we need to track; we'll use the existing graphics_step field to
represent the compute tile stepping and add a new 'basedie_step' field.

Unlike past platforms, steppings for these components are represented by
specific bitfields within the PCI revision ID, and we shouldn't make
assumptions about the non-CT, non-BD bits staying 0.  Let's update our
stepping code accordingly.

Bspec: 44484
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Atwood <matthew.s.atwood@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220527163348.1936146-2-matthew.d.roper@intel.com

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This commit is contained in:

Matt Roper 2022-05-27 09:33:47 -07:00

parent 420a07b841

commit 8b449f1c44

3 changed files with 85 additions and 2 deletions

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13

drivers/gpu/drm/i915/i915_drv.h

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70

drivers/gpu/drm/i915/intel_step.c

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4

drivers/gpu/drm/i915/intel_step.h

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