drm/i915: add new helpers for accessing stepping info

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Add new runtime info field for stepping. Add new helpers for accessing
them. As we'll be switching platforms over to the new scheme
incrementally, check for non-initialized steppings.

In case a platform does not have separate display and gt steppings, it's
okay to use a common shorthand. However, in this case the display
stepping must not be initialized, and gt stepping is the single point of
truth.

v3: Remove IS_STEP() (José)

v2: Rename stepping->step

Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/bb4275733fa390ea3dbf6f62794d55b616665230.1616764798.git.jani.nikula@intel.com

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This commit is contained in:

Jani Nikula 2021-03-26 15:21:33 +02:00

parent 7eb186bbe9

commit 439c8dccb6

3 changed files with 29 additions and 9 deletions

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20

drivers/gpu/drm/i915/i915_drv.h

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4

drivers/gpu/drm/i915/intel_device_info.h

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14

drivers/gpu/drm/i915/intel_step.h

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