If the idle_pulse fails to flush the i915_active, dump the tree to see if that has any clues.
Signed-off-by: Chris Wilson <[email protected]> --- .../drm/i915/gt/selftest_engine_heartbeat.c | 4 ++ drivers/gpu/drm/i915/i915_active.h | 2 + drivers/gpu/drm/i915/selftests/i915_active.c | 45 +++++++++++++++++++ 3 files changed, 51 insertions(+) diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c index 155c508024df..131c49ddf33f 100644 --- a/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c +++ b/drivers/gpu/drm/i915/gt/selftest_engine_heartbeat.c @@ -100,8 +100,12 @@ static int __live_idle_pulse(struct intel_engine_cs *engine, pulse_unlock_wait(p); /* synchronize with the retirement callback */ if (!i915_active_is_idle(&p->active)) { + struct drm_printer m = drm_err_printer("pulse"); + pr_err("%s: heartbeat pulse did not flush idle tasks\n", engine->name); + i915_active_print(&p->active, &m); + err = -EINVAL; goto out; } diff --git a/drivers/gpu/drm/i915/i915_active.h b/drivers/gpu/drm/i915/i915_active.h index 4f52fe6146d2..44859356ce97 100644 --- a/drivers/gpu/drm/i915/i915_active.h +++ b/drivers/gpu/drm/i915/i915_active.h @@ -214,4 +214,6 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref, void i915_active_acquire_barrier(struct i915_active *ref); void i915_request_add_active_barriers(struct i915_request *rq); +void i915_active_print(struct i915_active *ref, struct drm_printer *m); + #endif /* _I915_ACTIVE_H_ */ diff --git a/drivers/gpu/drm/i915/selftests/i915_active.c b/drivers/gpu/drm/i915/selftests/i915_active.c index 96513a7d4739..260b0ee5d1e3 100644 --- a/drivers/gpu/drm/i915/selftests/i915_active.c +++ b/drivers/gpu/drm/i915/selftests/i915_active.c @@ -205,3 +205,48 @@ int i915_active_live_selftests(struct drm_i915_private *i915) return i915_subtests(tests, i915); } + +static struct intel_engine_cs *node_to_barrier(struct active_node *it) +{ + struct intel_engine_cs *engine; + + if (!is_barrier(&it->base)) + return NULL; + + engine = __barrier_to_engine(it); + smp_rmb(); /* serialise with add_active_barriers */ + if (!is_barrier(&it->base)) + return NULL; + + return engine; +} + +void i915_active_print(struct i915_active *ref, struct drm_printer *m) +{ + drm_printf(m, "active %pS:%pS\n", ref->active, ref->retire); + drm_printf(m, "\tcount: %d\n", atomic_read(&ref->count)); + drm_printf(m, "\tpreallocated barriers? %s\n", + yesno(!llist_empty(&ref->preallocated_barriers))); + + if (i915_active_acquire_if_busy(ref)) { + struct active_node *it, *n; + + rbtree_postorder_for_each_entry_safe(it, n, &ref->tree, node) { + struct intel_engine_cs *engine; + + engine = node_to_barrier(it); + if (engine) { + drm_printf(m, "\tbarrier: %s\n", engine->name); + continue; + } + + if (i915_active_fence_isset(&it->base)) { + drm_printf(m, + "\ttimeline: %llx\n", it->timeline); + continue; + } + } + + i915_active_release(ref); + } +} -- 2.24.0.rc1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
