From: Sourab Gupta <sourab.gu...@intel.com>
This patch ensures hrtimer is rescheduled immediately during cb by
doing async call to check for streams data availability.
Signed-off-by: Sourab Gupta <sourab.gu...@intel.com>
Signed-off-by: Sagar Arun Kamble <sagar.a.kam...@intel.com>
---
drivers/gpu/drm/i915/i915_perf.c | 15 +++++++++++----
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 3a72705..630af3e 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -3465,12 +3465,10 @@ static ssize_t i915_perf_read(struct file *file,
return ret;
}
-static enum hrtimer_restart poll_check_timer_cb(struct hrtimer *hrtimer)
+static void wake_up_perf_streams(void *data, async_cookie_t cookie)
{
+ struct drm_i915_private *dev_priv = data;
struct i915_perf_stream *stream;
- struct drm_i915_private *dev_priv =
- container_of(hrtimer, typeof(*dev_priv),
- perf.poll_check_timer);
int idx;
struct intel_engine_cs *engine;
enum intel_engine_id id;
@@ -3486,6 +3484,15 @@ static enum hrtimer_restart poll_check_timer_cb(struct
hrtimer *hrtimer)
}
srcu_read_unlock(&engine->srcu, idx);
}
+}
+
+static enum hrtimer_restart poll_check_timer_cb(struct hrtimer *hrtimer)
+{
+ struct drm_i915_private *dev_priv =
+ container_of(hrtimer, typeof(*dev_priv),
+ perf.poll_check_timer);
+
+ async_schedule(wake_up_perf_streams, dev_priv);
hrtimer_forward_now(hrtimer, ns_to_ktime(POLL_PERIOD));
--
1.9.1
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