Quoting Mika Kuoppala (2019-10-15 16:44:49) > Avoid possible cs hang with semaphores by disabling > lite restore. > > Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/gt/intel_lrc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c > index 1ef23735c1f6..580d99d18e71 100644 > --- a/drivers/gpu/drm/i915/gt/intel_lrc.c > +++ b/drivers/gpu/drm/i915/gt/intel_lrc.c > @@ -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; This looks much more heavy handed than suggested, but for a0, I'm not fused. Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> -Chris _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
