@@ -411,6 +411,19 @@ heartbeat_default(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
static struct kobj_attribute heartbeat_interval_def =
__ATTR(heartbeat_interval_ms, 0444, heartbeat_default, NULL);
+static ssize_t
+runtime_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+ struct intel_engine_cs *engine = kobj_to_engine(kobj);
+ ktime_t dummy;
+
+ return sprintf(buf, "%llu\n",
+ ktime_to_ms(intel_engine_get_busy_time(engine, &dummy)));
+}
+
+static struct kobj_attribute runtime_attr =
+__ATTR(runtime_ms, 0444, runtime_show, NULL);
+
static void kobj_engine_release(struct kobject *kobj)
{
kfree(kobj);
@@ -521,6 +534,10 @@ void intel_engines_add_sysfs(struct drm_i915_private *i915)
sysfs_create_file(kobj, &preempt_timeout_attr.attr))
goto err_engine;
+ if (intel_engine_supports_stats(engine) &&
+ sysfs_create_file(kobj, &runtime_attr.attr))
+ goto err_engine;
+
add_defaults(container_of(kobj, struct kobj_engine, base));
if (0) {
Since we already report the per-engine runtime via PMU (using sampling if a direct measure is not available), and in debugfs, also trivially include the information for each engine under sysfs as a read-only property. We only present the total milliseconds to hide any misleading accuracy and to purposely reduce the precision of the global unprivileged information. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> --- drivers/gpu/drm/i915/gt/sysfs_engines.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)