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drm/i915/tgl: Wa_1607138340

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Avoid possible cs hang with semaphores by disabling
lite restore.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015154449.10338-11-mika.kuoppala@linux.intel.com
This commit is contained in:
Mika Kuoppala 2019-10-15 18:44:49 +03:00 committed by Chris Wilson
parent 99db8c59e0
commit 08fff7aedd
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/gt/intel_lrc.c
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@ -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;
}