Re: [RFC] drm/i915/lrc: allocate separate page for HWSP

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On 07/07/17 14:15, Daniele Ceraolo Spurio wrote:
After a bit of investigation I've found that the issue is not actually with the positioning of the HWSP but with the fact that we use status_page.ggtt_offset to point to the lrca offset of the default context in guc_ads_create instead of using kernel_context->engine[].state. With that fixed GuC works fine even with the HWSP below GUC_WOPCM_TOP.

Agreed, and it's something worth fixing (regardless of what we end up deciding about the HWSP). ads.golden_context_lrca shouldn't be relying on the HWSP location.

Thanks for spotting this.

-Michel
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