drm/xe/reg_sr: Save errors for kunit integration
When there's an entry that is dropped when xe_reg_sr_add(), there's not much we can do other than reporting the error - it's for certain a driver issue or conflicting workarounds/tunings. Save the number of errors to be used later by kunit to report where it happens. Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: https://lore.kernel.org/r/20230401085151.1786204-6-lucas.demarchi@intel.comSigned-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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