Commit 08fff7ae authored by Mika Kuoppala's avatar Mika Kuoppala Committed by Chris Wilson
Browse files

drm/i915/tgl: Wa_1607138340 



Avoid possible cs hang with semaphores by disabling
lite restore.

Signed-off-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015154449.10338-11-mika.kuoppala@linux.intel.com
parent 99db8c59

drivers/gpu/drm/i915/gt/intel_lrc.c

+4 −0
Original line number Diff line number Diff line
@@ -1048,6 +1048,10 @@ static u64 execlists_update_context(const struct i915_request *rq) 
	desc = ce->lrc_desc;

	ce->lrc_desc &= ~CTX_DESC_FORCE_RESTORE;



	/* Wa_1607138340:tgl */

	if (IS_TGL_REVID(rq->i915, TGL_REVID_A0, TGL_REVID_A0))

		desc |= CTX_DESC_FORCE_RESTORE;



	return desc;

}

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