This function does not use intel_context_create_request, so it has to use the same locking order as normal code. This is required to shut up lockdep in selftests. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/gt/selftest_lrc.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c index 19ae1e6ba976..65abb3a14c2d 100644 --- a/drivers/gpu/drm/i915/gt/selftest_lrc.c +++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c @@ -4999,6 +4999,7 @@ static int __live_lrc_state(struct intel_engine_cs *engine, { struct intel_context *ce; struct i915_request *rq; + struct i915_gem_ww_ctx ww; enum { RING_START_IDX = 0, RING_TAIL_IDX, @@ -5013,7 +5014,11 @@ static int __live_lrc_state(struct intel_engine_cs *engine, if (IS_ERR(ce)) return PTR_ERR(ce); - err = intel_context_pin(ce); + i915_gem_ww_ctx_init(&ww, false); +retry: + err = i915_gem_object_lock(scratch->obj, &ww); + if (!err) + err = intel_context_pin_ww(ce, &ww); if (err) goto err_put; @@ -5042,11 +5047,9 @@ static int __live_lrc_state(struct intel_engine_cs *engine, *cs++ = i915_ggtt_offset(scratch) + RING_TAIL_IDX * sizeof(u32); *cs++ = 0; - i915_vma_lock(scratch); err = i915_request_await_object(rq, scratch->obj, true); if (!err) err = i915_vma_move_to_active(scratch, rq, EXEC_OBJECT_WRITE); - i915_vma_unlock(scratch); i915_request_get(rq); i915_request_add(rq); @@ -5083,6 +5086,12 @@ static int __live_lrc_state(struct intel_engine_cs *engine, err_unpin: intel_context_unpin(ce); err_put: + if (err == -EDEADLK) { + err = i915_gem_ww_ctx_backoff(&ww); + if (!err) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); intel_context_put(ce); return err; } -- 2.27.0 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx