Quoting Jackie Li (2017-12-08 21:41:51)
> +static inline int cnl_a0_wopcm_size_check(struct drm_i915_private *i915)
> +{
> + struct intel_guc_wopcm *wopcm = &i915->guc.wopcm;
> + u32 huc_size = intel_uc_fw_get_size(&i915->huc.fw);
> +
> + /*
> + * On CNL A0, hardware requires guc size to be larger than or equal to
> + * HuC kernel size.
> + */
I couldn't find anything that told me that wopcm->size had to be greater
than GEN10_GUC_WOPCM_OFFSET. Either that is always true by construction,
in which case GEM_BUG_ON() here, or it may be too small in which case
add the test.
> + if ((wopcm->size - GEN10_GUC_WOPCM_OFFSET) < huc_size)
((((Do) you) like) brackets)?
-Chris
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