A small tweak to flush then invalidate appears to improve the reliability of ppGTT switches on Ivybridge -- but does not improve hsw/vlv bcs reliability.
Signed-off-by: Chris Wilson <[email protected]> Cc: Mika Kuoppala <[email protected]> --- drivers/gpu/drm/i915/gt/intel_ring_submission.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_ring_submission.c b/drivers/gpu/drm/i915/gt/intel_ring_submission.c index 066c4eddf5d0..48dbe46edbff 100644 --- a/drivers/gpu/drm/i915/gt/intel_ring_submission.c +++ b/drivers/gpu/drm/i915/gt/intel_ring_submission.c @@ -1394,7 +1394,7 @@ static int load_pd_dir(struct i915_request *rq, intel_ring_advance(rq, cs); - return 0; + return rq->engine->emit_flush(rq, EMIT_FLUSH); } static inline int mi_set_context(struct i915_request *rq, u32 flags) @@ -1584,7 +1584,7 @@ static int switch_mm(struct i915_request *rq, struct i915_address_space *vm) if (ret) return ret; - return rq->engine->emit_flush(rq, EMIT_FLUSH); + return rq->engine->emit_flush(rq, EMIT_INVALIDATE); } static int switch_context(struct i915_request *rq) -- 2.25.0.rc0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
