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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-31 10:11:16 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-31 14:43:14 +0000 |
| commit | 164a4128869ffcef33dfed82b641471b14e48b5d (patch) | |
| tree | 8b3eabcddcde14bfb6a2139340c554861f0ff75d /drivers/gpu/drm/i915/selftests | |
| parent | 1db257c55f0c9f54a429eb603ffa30bd8b0e06e6 (diff) | |
| download | linux-164a4128869ffcef33dfed82b641471b14e48b5d.tar.bz2 | |
drm/i915/selftests: Pretty print the i915_active
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 <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191031101116.19894-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/selftests')
| -rw-r--r-- | drivers/gpu/drm/i915/selftests/i915_active.c | 45 |
1 files changed, 45 insertions, 0 deletions
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); + } +} |